Technical field
[0001]
　BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air blowing device capable of supplying a uniform flow of air, and more particularly to the device suitable for using at least two units side by side or vertically.
Background technology
[0002]
　Conventionally used to collect harmful substances generated in clean benches or local work spaces used to improve the air cleanliness of local work spaces without diffusing into the work spaces and surrounding spaces. Push-pull type ventilation devices are well known. Further, an air blowing device which can be used for the clean bench and the ventilation device is also known.
[0003]
　For example, the uniform flow blowing device described in Japanese Patent Laid-Open No. 2003-4287 (P2003-4287A, Patent Document 1) has an air blowing surface on the front side of a hollow box. A plurality of distribution plates are provided behind the air blowing surface. The air flowing into this device is blown out as a uniform air flow from the air blowing surface after passing between the distribution plates.
[0004]
　The local cleaning device described in Japanese Patent Application Laid-Open No. 2008-75945 (P2008-75945A, Patent Document 2) is used for locally cleaning the inside of a clean room. The apparatus and the suction apparatus in which the air suction unit is mounted are provided. Both of these devices are arranged so as to sandwich a local area in the clean room to be cleaned.
[0005]
　Further, in the local air cleaning device described in Japanese Patent Application Laid-Open No. 2008-275266 (P2008-275266A, Patent Document 3), a pair of push hoods capable of blowing out a uniform flow of purified air is provided with the air. Are used so that the air flow opening surfaces for blowing out air are opposed to each other. That is, the pair of push hoods are used in a state in which the air flows from the respective push hoods collide with each other.
Prior art documents
Patent literature
[0006]
Patent Document 1: Japanese Patent Application Laid-Open No. 2003-4287
Patent Document 2: Japanese Patent Application Laid-Open No. 2008-75945
Patent Document 3: Japanese Patent Application Laid-Open No. 2008-275266
Summary of the invention
Problems to be Solved by the Invention
[0007]
　A conventional blowing device that can locally create a work space in which a uniform air flow or a uniform air flow of clean air flows in a large room is relatively large in order to facilitate its use and facilitate its movement. It is often provided to consumers as a small product. On the other hand, depending on the type of work and the way in which the work is carried out, the work space created by one or a pair of blowing devices may not be large enough. However, in the conventional blowing device, even if the devices are used side by side, a space in which uniform air flow is not supplied or a clean air is not obtained at the part where the devices arranged side by side are in contact with each other and the downstream side thereof. It is difficult to avoid the occurrence of unreachable spaces. Such space is unsuitable for use as a work space, even if it is a small part of the work space.
[0008]
　Therefore, in the present invention, when the blowing devices are used side by side and / or vertically, a uniform air flow toward the downstream side or a uniform air flow of clean air is obtained between the devices. In order to be able to do so, it is an object to improve the conventional blowing device.
Means for solving the problems
[0009]
　The present invention for solving the above problems includes the first invention and the second invention. The first invention is intended to provide a rectifying mechanism portion in a flow path of air from an upstream side to a downstream side, and the air is passed to the downstream side of the rectifying mechanism portion after the air passes through the rectifying mechanism portion. It is an air blowing device that enables it to be supplied as an air flow.
[0010]
　The features of the first invention in such an air blowing device are as follows. That is, the device includes a front-rear direction that coincides with the flow direction of the uniform air flow and has the downstream side as a front, a width direction that is orthogonal to the front-rear direction, and a vertical direction that is orthogonal to the front-rear direction and the width direction. With direction. The device has a breathable front face portion in which a plurality of first vent holes are distributed in the width direction and the up-down direction on the downstream side of the rectifying mechanism portion, and on each of the width direction both sides of the breathable front face portion. And a side surface portion extending from the side edge of the breathable front surface portion extending in the up-down direction toward the upstream side. A plurality of second ventilation holes are distributed in the side surface portion on at least one of both sides in the width direction, and a part of the air that has passed through the rectifying mechanism portion is blown out from the second ventilation hole to the outside in the width direction. It is possible.
[0011]
　In one of the embodiments of the first invention, the breathable front portion extends in the width direction over at least one of both sides of the rectifying mechanism portion.
[0012]
　In another one of the embodiments of the first invention, in a portion of the side surface portion in which the second ventilation holes are distributed, a plate material forming the breathable front surface portion is formed at the side edge. It is formed by being bent toward the upstream side.
[0013]
　In another embodiment of the first invention, the first and second ventilation holes have a hole diameter in a range of 0.5 to 4 mm, and the first ventilation is performed with respect to an area of ​​10 cm 2 of the breathable front portion. The ratio of the area occupied by the pores and the ratio of the area occupied by the second ventilation holes to the side surface area of ​​10 cm 2 are 20 to 50%.
[0014]
　In another one of the embodiments of the first invention, the center-to-center distance between the adjacent first vent holes and the center-to-center distance between the adjacent second vent holes are in the range of 1 to 6 mm.
[0015]
　In another one of the embodiments of the first invention, the breathable front face portion has at least one end edge of an upper end edge and a lower end edge extending in the up-down direction and extending in the width direction, An end face portion that crosses the breathable front face portion and widens toward the upstream side is formed on one edge, and a plurality of third vent holes are distributed in the end face portion. It is possible to blow a part of the air that has passed through the straightening mechanism section to the outside in the vertical direction.
[0016]
　In another one of the embodiments of the first invention, the breathable front face portion has at least one end edge of an upper end edge and a lower end edge extending in the up-down direction and extending in the width direction, An end face portion that crosses the breathable front face portion and widens toward the upstream side is formed at one end edge, and extends in the up-down direction between the rectifying mechanism portion and the breathable front face portion. A spacer having a top surface portion and a bottom surface portion, which extend to the width direction and is connected to the end portions in the vertical direction of both side wall portions and both side wall portions, is interposed, and the inner dimension in the width direction between the both side wall portions is interposed. Is gradually larger than the dimension in the width direction of the rectifying mechanism portion as it proceeds to the downstream side, each of the both side wall portions forms at least a part of the side surface portion, and the top surface portion and the bottom surface portion. Forming at least a part of the end face portion of the device, the breathable front face portion being connected to the both side wall portions, the top face portion and the bottom face portion of the spacer at the both side edges and the upper and lower end edges respectively. A plurality of the second ventilation holes are formed in at least one of the both side wall portions.
[0017]
　In another one of the embodiments of the first invention, the spacer is removable in the device.
[0018]
　In another one of the embodiments of the first invention, the spacer and the breathable front part are removable from each other.
[0019]
　In another one of the embodiments of the first invention, the breathable front face portion has at least one end edge of an upper end edge and a lower end edge extending in the up-down direction and extending in the width direction, An end face portion that crosses the breathable front face portion and widens toward the upstream side is formed at one end edge, and extends in the up-down direction between the rectifying mechanism portion and the breathable front face portion. A spacer having a top surface portion and a bottom surface portion extending in the width direction connected to the end portions in the vertical direction of both side wall portions and both side wall portions is interposed, and at least one of the top surface portion and the bottom surface portion is present. Has a plurality of the third vent holes.
[0020]
　In another one of the embodiments of the first aspect of the invention, the device is one of a plurality of the devices arranged side by side in the width direction and adjacent to each other. It is possible to blow out a part of the air that has passed through the rectifying mechanism portion toward the side surface portion of the device.
[0021]
　In another one of the embodiments of the first invention, in the device, the breathable front portion has at least one of an upper edge and a lower edge extending in the vertical direction and extending in the width direction. However, an end face portion that intersects with the breathable front face portion and widens toward the upstream side is formed on the at least one edge, and a plurality of third vent holes are distributed in the end face portion. , One of the plurality of the devices that are arranged in the width direction and the vertical direction and are adjacent to each other, and from the second vent hole and the third vent hole of the device of the opponent device that is adjacent in the width direction. It is possible to blow out a part of the air that has passed through the rectification mechanism portion toward the end surface portion of the other device that is adjacent in the vertical direction and the side surface portion.
[0022]
　A second aspect of the present invention is intended to provide a rectifying mechanism part in a flow path of air flowing from an upstream side to a downstream side, and after the air has passed through the rectifying mechanism part, An air blowing device that enables a uniform air flow to be supplied to the downstream side.
[0023]
　The features of the second invention in such a blowing device are as follows. That is, the device includes a front-rear direction that coincides with the flow direction of the uniform air flow and has the downstream side as a front, a width direction that is orthogonal to the front-rear direction, and a vertical direction that is orthogonal to the front-rear direction and the width direction. With direction. The device includes a breathable front face portion in which a plurality of first vent holes are distributed in the width direction and the vertical direction on the downstream side of the rectifying mechanism portion, and in the vertical direction of the breathable front face portion. An end face portion of the device that intersects the breathable front face portion and widens toward the upstream side is formed from at least one of an upper end edge and a lower end edge extending in the width direction. A plurality of third ventilation holes connected to the flow path are distributed in the end face portion, and a part of the air that has passed through the rectifying mechanism portion can be blown out from the third ventilation hole to the outside in the vertical direction. Is.
[0024]
　In one embodiment of the second invention, the diameter of the first and third ventilation holes is in the range of 0.5 to 4 mm, and the area of ​​the ventilation front part of the first ventilation holes is 10 cm 2 . The ratio of the area occupied and the ratio of the area occupied by the third ventilation holes to the area of ​​the end face portion of 10 cm 2 are in the range of 20 to 50%.
[0025]
　In another one of the embodiments of the second aspect of the present invention, the center-to-center distance between the adjacent first ventilation holes and the center-to-center distance between the adjacent third ventilation holes are in the range of 1 to 6 mm.
[0026]
　In another one of the embodiments of the second aspect of the invention, in the apparatus, the upstream side from the side edge of the breathable front face portion on each side of the breathable front face portion in the width direction and extending in the vertical direction. A side surface portion that widens toward the side is formed, and a plurality of second ventilation holes are distributed in the side surface portion on at least one of both sides in the width direction, and the air that has passed through the rectification mechanism portion from the second ventilation hole. It is possible to blow out a part of the above to the outside in the width direction.
[0027]
　In another one of the embodiments of the second aspect of the invention, the device is one of a plurality of the devices that are arranged in the vertical direction and are adjacent to each other, and the device is a device of the adjacent opponent from the third ventilation hole. It is possible to blow out a part of the air that has passed through the rectifying mechanism portion toward the end surface portion of the device.
[0028]
　In addition, in one of the embodiments of the first and second inventions, the breathable front surface portion is attachable / detachable in the device.
The invention's effect
[0029]
　In the air blowing device according to the first aspect of the present invention, a plurality of air blowers are provided on the downstream side of the rectifying mechanism section provided in the air flow path from the upstream side to the downstream side, with a required distance from the rectifying mechanism section. A breathable front surface is provided in which the first vent holes are distributed. A side portion of the device is connected to a side edge of the breathable front portion. A plurality of second vent holes are distributed on the side surface portion. The air that has passed through the rectifying mechanism portion passes through the first ventilation hole of the breathable front surface portion and is supplied to the front of the blowing device as a uniform air flow. It spreads across the width in the width direction and is blown out from the second ventilation hole toward the outside in the width direction. When the two blowing devices are used side by side with a gap, the air blown out from the second ventilation holes of each of the two devices collides with each other and the air behind the two devices is removed. It can be prevented from flowing between the two devices and flowing in front of the two devices. In such two blow-out devices, the entire width direction of the blow-out devices arranged side by side is made into a work space filled with a uniform air flow or a work space filled with a uniform air flow of clean air. be able to.
[0030]
　Further, in the air blowing device according to the second aspect of the present invention, the whole of the vertical and vertical blowing devices is made into a working space filled with a uniform air flow, or filled with a uniform flow of clean air. It can be used as a work space.
Brief description of the drawings
[0031]
FIG. 1 is a perspective view of an air blowing device.
2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a sectional view taken along the line III-III in FIG.
FIG. 4 is a partially enlarged view of FIG.
FIG. 5 is a partially enlarged view of FIG.
FIG. 6 is a partially enlarged view of FIG.
FIG. 7 is a diagram schematically showing the flow of air in the clearance.
FIG. 8 is a diagram showing measurement points of wind speed and cleanliness.
FIG. 9 is a view similar to FIG. 1 showing an example of an embodiment.
FIG. 10 is a sectional view taken along line XX of FIG.
FIG. 11 is a sectional view taken along line XI-XI of FIG. 9.
FIG. 12 is a partially enlarged view of FIG. 11.
FIG. 13 is a view similar to FIG. 1 showing an example of an embodiment.
FIG. 14 is a top view of an example of a composite device.
FIG. 15 is a view exemplifying an embodiment of a compound device as a push-push type blowing device.
MODE FOR CARRYING OUT THE INVENTION
[0032]
　The details of the air blowing device according to the present invention will be described below with reference to the accompanying drawings.
[0033]
　1, 2 and 3, FIG. 1 is a perspective view of the air blowing device 1, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG. . In the device 1 of these figures, the double-headed arrow X indicates the width direction, the double-headed arrow Y indicates the vertical direction, and the double-headed arrow Z indicates the front-back direction. The term “front” in the device 1 means a direction from the rear portion 3 described later to the front portion 2.
[0034]
　The air blowing device 1 illustrated in FIG. 1 has a front portion 2, a rear portion 3, a top portion 4, a bottom portion 6, and both side portions 7. When the device 1 is viewed in the up-and-down direction Y, the device 1 also has an air blowing part 22, an operating part 12 located above the air blowing part 22, and an outside air intake part 21 located below the air blowing part 22. Casters 13 for moving the device 1 are attached to the bottom portion 6.
[0035]
　In the device 1, the air is taken in from the rear part 3 side of the outside air intake part 21 and is blown out from the blowing plate 11 in the air blowing part 22. The blowing plate 11 includes a breathable front surface portion 11f in which a plurality of first ventilation holes 70a are distributed and a bent portion 11a in which a plurality of second ventilation holes 70b are distributed. Air is blown forward from the first ventilation hole 70a, and air is blown outward in the width direction X from the second ventilation hole 70b. Further, in the preferable apparatus 1, the air from the first ventilation hole 70a is blown out as a uniform air flow, and in the further preferable apparatus 1, the air from the first ventilation hole 70a is uniform air formed by clean air. It is made to flow and is blown out. In the present invention, the uniform air flow may be referred to as a uniform air flow. The uniform air flow and the uniform flow are synonymous with the uniform air flow described in "Factory ventilation" by Taro Hayashi (published by the Society of Air Conditioning and Sanitary Engineering in 1982). However, the present invention is not intended to provide an air blowing device that strictly defines the flow velocity and velocity distribution of air. Arrows A and B in the drawing show the flow direction of air from the upstream side to the downstream side, and arrow C shows the flow direction of air from the upstream side to the outside in the width direction X. The front portion 2 of the operation unit 12 monitors an on / off switch 12a for starting and stopping the air blowing device 1 and a clogging state of filters 24 and 29 (see FIG. 2) described later in the device 1. The display part 12b for etc. is included.
[0036]
　FIG. 1 also shows a second air blowing device 1 that is the same as the air blowing device 1 but is used in a state of being side by side so as to be adjacent to the device 1 in the width direction X. ing. However, in this specification, the reference numeral 101 may be attached to the second blowing device in order to avoid complicated description. That is, in FIG. 1, a clearance CL is formed between the side portions 7 of the air blowing device 1 and the second air blowing device 101. When the devices 1 and 101 are operated at the same time, a wide working space (not shown) in which a uniform air flow or a uniform air flow of clean air flows is formed downstream of the devices 1 and 101. A possible compound device 201 is formed.
[0037]
　FIG. 2 shows the internal structure of the device 1 in the vertical direction Y and the air flow path in the device 1. It should be noted that although the electric wiring, the circuit board, and the like necessary for operating the apparatus 1 are housed inside the operation unit 12, their illustration is omitted.
[0038]
　In FIG. 2, the outside air intake part 21 forming the lower part of the device 1 has a breathable first rear panel 23 on the rear part 3 of the device 1. A pretreatment filter 24 is detachably set inside the first rear panel 23, that is, on the downstream side of the first rear panel 23. A fan 26 such as a sirocco fan for taking in outside air is set on the downstream side of the pretreatment filter 24. The fan 26 can be inspected or replaced by removing the front panel 27 forming a part of the front part 2. When the fan 26 rotates, the outside air passes through the first rear panel 23 and the pretreatment filter 24 and becomes a flow indicated by an arrow F 1 , and further passes through the fan 26 and becomes a flow indicated by an arrow F 2 of the device 1. Proceed to the air blowing unit 22.
[0039]
　In the air blowing portion 22, the rear portion 3 is formed of a non-breathable second rear panel 25. A first space 28 into which the air flow F 2 from the outside air intake portion 21 flows is formed on the upstream side of the air blowing portion 22 . A high-performance filter 29, which is an example of a HEPA filter, is detachably set on the downstream side of the first space 28. On the downstream side of the high-performance filter 29, only the air that has passed through the high-performance filter 29 is allowed to flow in, and the air can be expanded in the up-down direction Y and the width direction X of the device 1. Are formed. On the downstream side of the second space 32, a rectifying unit 33 that forms the rectifying mechanism portion of the device 1 is detachably set inside the air blowing section 22, and is separated from the rectifying unit 33 by a required distance downstream. The breathable front surface portion 11a of the blowing plate 11 is located at the position. The breathable front part 11a is a breathable part through which the air taken into the device 1 passes last, in other words, a breathable part located at the frontmost part of the device 1. The air flow F 2 becomes a flow F 3 in the air blowing portion 22, and most of the air flows out from the breathable front surface portion 11f to the outside as a flow F 4 which is a uniform air flow . These flows F 2 , F 3 and F 4 also represent most of the air flow path in the device 1.
[0040]
　In FIG. 3, the dimension of the air blowing portion 22 in the width direction X increases in the order of the high performance filter 29, the second space 32, the rectifying unit 33, and the blowing plate 11, and the dimension W of the first space 28 in the width direction X. 1 is larger than the dimension of the high performance filter 29 in the width direction X. The dimension W 1 is also the dimension of the opening 20 connected to the outside air intake portion 21. However, in the present invention, it is not essential to order the dimensions in the width direction X in this way, and the order can be appropriately changed. In FIG. 3, the air sent by the fan 26 of the outside air intake part 21 becomes a flow F 2 and enters the first space 28 through the opening 20 (see FIG. 2). The blowing plate 11 is bent at a right angle toward the rear portion 3 of the device 1 at the side edges 15 located on both sides in the width direction X, thereby forming a bent portion 11a that spreads from the side edge 15 toward the upstream side. The bent portion 11 a is formed to be a part of the side portion 7 of the device 1. The bent portion 11a extends in the up-down direction Y (see FIG. 1) so as to be perpendicular to the horizontal floor surface 100 (see FIG. 13) on which the device 1 is placed. A removable stopper 29a is pressed against the upstream surface of the high-performance filter 29.
[0041]
　FIG. 4 is an enlarged view of the part IV in FIG. The operation portion 12 has a bottom plate portion 12c that extends horizontally in the front-rear direction Z. In the air blowing portion 22, a top surface portion 11b connected to the vertically extending blowing plate 11 and extending horizontally forms an upper end surface portion of the air blowing portion 22, and a bottom plate portion 12c is fixed to the top surface portion 11b by a bolt 36. . Inside the air blowing portion 22, the rectifying unit 33 is fitted and fixed to the fixing frame member 37. The frame member 37 has a peripheral wall portion 38 and a front opening portion 39, and a thick portion 38a of the peripheral wall portion 38 is fixed to the top surface portion 11b. A third space 41 is formed between the breathable front surface portion 11 f and the frame member 37 of the blowing plate 11, and a fourth space 42 is formed between the top surface portion 11 b and the peripheral wall portion 38. The dimension D 1 in the front-rear direction Z in the third space 41 is between the breathable front surface portion 11f and the rectifying unit 33, specifically between the breathable front surface portion 11f and the second honeycomb plate 57 described later in the rectifying unit 33. Is a distance set so that a clearance of a required dimension can be formed, and a dimension D 2 in the up-down direction Y in the fourth space 42 is a distance between the top surface portion 11b and the rectifying unit 33. . In the preferred device 1, the dimension D 1 is in the range 5-100 mm and the dimension D 2 is in the range 0.5-40 mm. Dimension D 2Can be 0.5 mm or a value close to it when the bolt 36 is unnecessary and the top surface portion 11 b and the fixing frame member 37 can be brought into contact with each other. FIG. 4 also shows the inner surface of the bent portion 11a of the blowing plate 11 and the second ventilation hole 70b formed in the bent portion 11a.
[0042]
　FIG. 5 is an enlarged view of the portion V in FIG. In the air blowing portion 22, a non-breathing bottom surface portion 11c that is connected to the vertically extending breathable front surface portion 11f and extends horizontally forms the lower end surface portion of the air blowing portion 22, and the bottom surface portion 11c and the peripheral wall of the fixing frame member 37. A fifth space 43 is formed between the portion 38 and the portion 38, and the fifth space 43 is connected to the third space 41. The thick portion 38a of the fixing frame member 37 is fixed to the inner surface of the bottom surface portion 11c. A second ventilation hole 70b is formed on the inner surface of the bent portion 11a that appears in the third space 41. The outside air intake portion 21 located below the air blowing portion 22 has a front panel 27 and a top plate portion 47, and a pin 48 extending upward in the top plate portion 47 has a hole portion of the bottom surface portion 11 c in the air blowing portion 22. When it enters 49, it acts as a positioning means for positioning the air blowing portion 22 with respect to the outside air intake portion 21. The inside of the outside air intake portion 21 has a rib structure portion 21a for mounting the fan 26 (see FIG. 2), but a detailed description of the structure portion 21a will be omitted.
[0043]
　5, in the rectifying unit 33, the first honeycomb plate 51, the first spacer 52, the first punching metal 53, the second spacer 54, the second punching metal 55, and the third spacer 56 are arranged from the upstream side to the downstream side. The second honeycomb plate 57 is arranged in order, and the members 51 to 57 are integrally held by the fixing frame member 37. The fixing frame member 37 is in close contact with the frame member 59 forming the second space 32 via the packing 58. However, in the present invention, the structure of the rectifying unit 33 is not limited to the illustrated example, and the number of honeycomb plates, spacers, and punching metals can be appropriately increased or decreased.
[0044]
　The first and second honeycomb plates 51, 57 have a rectifying effect on the flow of air, and all ventilation holes (not shown) in the honeycomb structure extend from the upstream side to the downstream side. The air that has passed through these ventilation holes travels straight toward the downstream side.
[0045]
　Each of the first, second, and third spacers 52, 54, and 56 includes a sixth space 61 between the first honeycomb plate 51 and the first punching metal 53, a first punching metal 53, and a second punching metal 55. The frame member is used to form the seventh space 62 between the second punching metal 55 and the eighth space 63 between the second honeycomb plate 57. In each of the sixth, seventh, and eighth spaces 61, 62, and 63, the air flowing toward the downstream side of the device 1 is provided on the upstream side of each of the first punching metal 53, the second punching metal 55, and the second honeycomb plate 57. A space is provided that allows it to expand in the width direction X and the vertical direction Y.
[0046]
　The first punching metal 53 and the second punching metal 55 allow the air spread in the width direction X and the vertical direction Y to flow toward the second honeycomb plate 57.
[0047]
　The air that has left the high-performance filter 29 and has become the flow F 3 (see FIG. 2) and has entered the rectifying unit 33 is blown out from the second honeycomb plate 57 and formed on the downstream side of the second honeycomb plate 57. 3 Enter space 41. In the third space 41, the air spreads in the width direction X and the vertical direction Y, and most of the air is a uniform air flow of clean air from the entire breathable front surface portion 11f of the blowing plate 11 in the flow F 4. (See FIG. 2) and is blown out in the downstream direction B. Further, a part of the air passes through the second ventilation hole 70b in the bent portion 11a and becomes a flow F 5 (see FIG. 6) outside the width direction X which is the direction indicated by the arrow C in FIG. Is blown out to. The air in the third space 41 also flows into the fourth and fifth spaces 42, 43, but since the top surface portion 11b and the bottom surface portion 11c connected to the blowing plate 11 are not air-permeable, the air in the air blowing portion 22 blows out. The air is blown out only from the breathable front surface portion 11f and the bent portion 11a of the plate 11. The dimension D 3 in the fifth space 43 is the distance between the bottom surface portion 11c and the rectifying unit 33, and in the preferred apparatus 1, the dimension D 3 is in the range of 0.5 to 40 mm. The dimension D 3 can be 0.5 mm or a value close to 0.5 mm when the pin 48 does not enter the fifth space 43 and the bottom surface portion 11 c and the rectifying unit 33 can be brought into contact with each other.
[0048]
　FIG. 6 is an enlarged view of the portion VI in FIG. 3 and shows a structure in the vicinity of the side edge 15 in the breathable front surface portion 11f. In FIG. 6, the breathable front surface portion 11f located on the downstream side of the rectifying unit 33 extends in the width direction X beyond the second honeycomb plate 57 in the rectifying unit 33 by a dimension D 4 . The air that has passed through the second honeycomb plate 57 spreads at least in the width direction X of the width direction X and the vertical direction Y in the third space 41 and is blown out from the entire width direction X of the breathable front surface portion 11f. . A ninth space 64 is formed between the bent portion 11a connected to the breathable front surface portion 11f and the rectifying unit 33, and the ninth space 64 is the third space 41 and the fourth space 42 (see FIG. 4). And the fifth space 43 (see FIG. 5). The bent portion 11a is a portion of the side 7 dimension D 5 are second vent hole 70b (see FIGS. 4 and 5) is formed in a range of. The air that has flowed into the ninth space 64 becomes a flow F 5 and exits from the device 1 toward the side portion 7 of the second device 101 adjacent thereto. The upstream side of the rectifying unit 33 is in close contact with the frame member 59 via the packing 58. The dimension D 4 is also the distance between the bent portion 11a and the rectifying unit 33 in the ninth space 64, and in the preferred device 1, the dimension D 4 is in the range of 0.5 to 40 mm. The dimension D 5 is preferably in the range of 1 to 40 mm, more preferably in the range of 3 to 40 mm, and further preferably in the range of 5 to 40 mm. Dimension D 5Is 3 mm or more, it is easy to form the second vent hole 70b in the bent portion 11a.
[0049]
　In the rectification unit 33 of the device 1 thus formed, the first and second honeycomb plates 51 and 57 have, for example, a hole diameter in the honeycomb structure in the range of 1 to 10 mm, and In other words, a honeycomb plate having a thickness of 3 to 30 mm can be used. The first and second punching metals 53, 55 are, for example, stainless steel plates or aluminum plates having a thickness of 0.5 to 2.5 mm, and have ventilation holes having a hole diameter of 0.5 to 4 mm. It is possible to use those that are uniformly formed and have a ratio of the area occupied by the ventilation holes in the range of 20 to 50%.
[0050]
　An example of the plate material for manufacturing the blowing plate 11 located on the downstream side of the rectifying unit 33 is a metal plate such as a stainless steel plate having a thickness of 0.5 to 2.5 mm. An aperture plate made of metal, which is generally called punching metal, is an example of the metal plate. The bent portion 11a, the top surface portion 11b, and the bottom surface portion 11c of the blowing plate 11 can be obtained by bending the peripheral portion of the metal plate for manufacturing the blowing plate 11, but are separate from the blowing plate 11. It can also be obtained by attaching the metal plate to the peripheral edge of the breathable front surface portion 11f by welding or the like. Further, the blowing plate 11 may be one in which only the breathable front surface portion 11f is formed and the bent portion 11a, the top surface portion 11b, and the bottom surface portion 11c are not formed. The portions corresponding to the bent portion 11a, the top surface portion 11b, and the bottom surface portion 11c at that time can be supplemented by appropriately changing the shapes of the side edge portion 7 of the air blowing portion 22 in FIG. 1 and other portions.
[0051]
　The breathable front surface portion 11f in the device 1 used alone or the device 1 used as the composite device 201 can be made to have a size of 400 × 400 mm to 2000 × 2000 mm, for example. A circular first ventilation hole 70a is formed on the breathable front surface portion 11f, and the hole diameter of the first ventilation hole 70a is kept within a range of 0.5 to 4 mm, so that the distance between the centers of the adjacent first ventilation holes 70a can be reduced. It is preferable to keep the area within the range of 1 to 6 mm so that the ratio of the area occupied by the breathable front surface portion 11f to the area of ​​10 cm 2 is 20 to 50%. The first ventilation holes 70a can be evenly distributed with respect to the breathable front surface portion 11f while being arranged in a staggered arrangement or in a lattice arrangement. The hole diameter and the center-to-center distance can be changed depending on the part. The shape of the first ventilation hole 70a is, for example, a circle, but may be a shape other than a circle as long as a uniform air flow can be obtained in the device 1. The wind velocity of the air flows F 4 , F 4 ′ from the breathable front surface portion 11f having the first ventilation holes 70a is preferably set to about 0.3 to 0.8 m / sec.
[0052]
　In the side portion 7 that blows out air in the width direction X, in the bent portion 11a that is a part of the side portion 7 in the case of the device 1 in FIG. 1, the dimension in the up-down direction Y of the range in which the second ventilation hole 70b is formed is It is preferable that the size of the range in which the first ventilation hole 70a is formed in the breathable front surface portion 11f is the same. The dimension in the front-rear direction Z in the range where the second vent hole 70b is formed, that is, the dimension D 5 in FIG. 6 is as described above. Preferred second vent hole 70b is in the range of pore diameter of 0.5 ~ 4 mm, the distance between the centers of the second vent hole 70b adjacent there is a range of 1 ~ 6 mm, the area 10cm of the bent portion 11a 2 to The area ratio occupies 20 to 50%. The shape of the second ventilation hole 70b may be circular or may be a shape other than the circular shape as long as a uniform airflow can be obtained in the multifunction device 201. It is preferable that the second vent holes 70b are evenly distributed in the bent portion 11a, but they can be unevenly distributed in a desired portion. In the multifunction device 201, the dimension of the clearance CL between the bent portions 11a facing each other in the width direction X is preferably 0.5 to 50 mm. When the dimension gradually exceeds 50 mm and becomes large, a decrease in cleanliness described later on the downstream side of the clearance CL becomes more and more remarkable.
[0053]
　It goes without saying that the device 1 according to the present invention can be used as a single blowing device, but as a blowing device for an open clean zone obtained by making two blowing devices face each other. Alternatively, it can be used as a blowing device in a push-pull type ventilation device in which one blowing device and one suction device are opposed to each other. Further, the device 1 is a composite device 201 in which a second device 101, which is the same as the device 1, is arranged side by side as shown in FIGS. It can also be used. In the composite device 201, the folded portion 11a of the device 1 and the folded portion 11a of the opponent device 101 adjacent to the device 1 can be provided with a clearance CL of a required dimension between the two folded portions 11a. To face each other. Between the device 1 and the device 101, which are separated in parallel in the width direction X and the device 101, air may be blown out only from a part of each of the bent portions 11a facing each other in the width direction X, that is , a part having the dimension D 5 .
[0054]
　In such a complex device 201, when the device 1 and the device 101 are operated at the same time, uniform air in the direction B toward the downstream is obtained from the breathable front surface portion 11f of the device 1 and the breathable front surface portion 11f of the device 101. Flows F 4 and F 4 ′ (see FIG. 6) are generated, and the bent portions 11a and 11a facing each other in the width direction X are respectively bent from the bent portion 11a of the opposite side. Air flows F 5 and F 5 ′ (see FIG. 6) towards the air flow occur. The flows F 5 and F 5 ′ collide at the clearance CL.
[0055]
　FIG. 7 is a schematic diagram showing a state where the air flows F 5 and F 5 ′ collide with each other. In FIG. 7, when the flows F 5 and F 5 ′ collide with each other, the air forming the flows F 5 and F 5 ′ divides the clearance CL into an upstream side and a downstream side, and the clearance CL In CL, air flows f 1 , f 2 , f 3 , f 4, etc. that radially spread toward the upstream side, the downstream side, the upper side, the lower side, etc. are formed. When the device 1 and the device 101 form only the flows F 4 and F 4 ′, suspended particles in a space such as a work room in which the device 1 and the device 101 are installed become dust. By entering the clearance CL from the upstream side together with the indoor air and flowing out to the downstream side of the device 1 and the device 101, the working space in which clean air to be formed in front of the device 1 and the device 101 flows is contaminated. That happens. However, the flow to the clearance CL is f 1 , f 2 , f 3 and f 4 , the flows f 1 , f 3 , and f 4 of them prevent the air containing the suspended particles from entering the clearance CL, and the working space in front of the clearance CL is suspended by the suspended particles. Eliminate the problem of being contaminated. Further, the flow f 2 that is formed by the clean air that has passed through the high-performance filter 29 and flows from the clearance CL toward the downstream side makes it possible to form a working space in which the clean air flows in front of the clearance CL. At the same time, due to the existence of the flows F 4 and F 4 ′, the entire width direction X of the compound device 201 including the front of the clearance CL becomes a working space in which clean air flows. The work space can also be a work space in which a uniform flow of clean air flows.
[0056]
　In the composite device 201, in order to keep the dimension of the clearance CL stable even during use of the composite device 201, a spacer (not shown) is interposed between the device 1 and the device 101, and the spacer is used. Then, it is preferable that both the devices 1 and 101 are fixed. Further, the size of the clearance CL can be stabilized by using a fixture common to the device 1 and the device 101.
[0057]
　FIG. 8 is a partial top view of the composite device 201 installed in a test room (not shown) for evaluating the performance of the composite device 201, showing the concentration of airborne particles in the air downstream of the clearance CL. A part of a plurality of measurement points to be measured , P 1 and P 4 (see also FIG. 1) is shown, and the wind velocity distribution on the downstream side of the device 1 and the device 101 forming the composite device 201 is observed. Some of the plurality of wind speed measurement points P 1 , P 7 , P 10 are shown. It should be noted that all the measurement points P 1 to P 12 adopted to measure the airborne particle concentration and the wind speed in the exemplified composite apparatus 201 are shown in FIG.
[0058]
　In the two devices 1 and 101 in the composite device 201 of FIG. 8, the breathable front portion 11f has a size of width 900 × height 700 mm, and the blowing air velocity from the breathable front portion 11f is about 0. A high-performance filter 29 (see FIG. 2) equipped with a fan 26 having a capacity of 0.5 m / sec and a HEPA filter having a collection efficiency of 99.97% for 0.3 μm particles is used. ing. The two devices 1 and 101 are arranged so that their breathable front surfaces 11f are located on the same vertical plane. The clearance CL between the device 1 and the device 101 is set to 10 mm. In FIG. 1, measurement points P 1 to P 3 located in front of the clearance CL are points for measuring the wind speed, and measurement points P 1 to P 6 are points for measuring the airborne particle concentration. Point is also on the line that bisects the width of the clearance CL. Further, the measurement points P 1 to P 3 are at positions where the distance L 1 from the breathable front surface portion 11f to the downstream side is 100 mm, and the measurement points P 4 to P 6 are from the breathable front surface portion 11f to the downstream side. The distance L 2 is 200 mm. Measuring points P 1 , P 4Is at a position where the distance L 3 from the top edge 16 (see FIG. 1) of the breathable front portion 11f is 118 mm, and the measurement points P 3 and P 6 are the bottom edges 17 (see FIG. 1) of the breathable front portion 11f. ), The separation distance L 4 from the position is 118 mm. The distance L 5 between the centers of the measurement points P 1 , P 2 and P 3 and the distance L 6 between the centers of the measurement points P 4 , P 5 and P 6 are both set to 232 mm.
[0059]
　The measurement points P 7 , P 8 , P 9 and P 10 , P 11 , P 12 shown in FIG. 1 are points for measuring the wind speed, and are the measurement points P 7 , P 8 , P 9. Is at a position where the measurement points P 1 , P 2 , and P 3 are translated to the center of the breathable front surface portion 11 f of the apparatus 1 in the width direction X. The measurement points P 10 , P 11 , P 12 are the measurement points P 1 , P 2 , P 3.Is translated to the center in the width direction X of the breathable front surface portion 11f of the apparatus 101. Model 1560 manufactured by KANOMAX is used for measuring the wind speed, and particle counter KC-18 manufactured by LION is used for measuring the concentration of suspended particles.
[0060]
　The measurement results of the wind speed are shown in Table 1, and the measurement results of the airborne particle concentration are shown in Tables 2 and 3. Table 2 shows the measurement results for particles having a particle size of 0.3 μm or more, and Table 3 shows the measurement results for particles having a particle size of 0.1 μm or more. In Tables 2 and 3, the “suspended particle concentration C 0 on the upstream side of the combined device” means the indoor space on the upstream side of the pretreatment filter 24 (see FIG. 2) in one of the two devices 1 and 101. air was 1L collected, the number of airborne particles in the air 1 m 3 density obtained in terms of the number per (pieces / m 3 is meant). The cleanliness Q is a value calculated by the following mathematical formula 1.
　　　　Cleanliness Q (%) = (C 0 −C P ) / C 0 × 100 (Equation 1)
　　　　where C 0 : Concentration of suspended particles on the upstream side of the composite apparatus (pieces / m 3 )
　　　　　　　　C P : Measurement point P Airborne particle concentration (particles / m 3 )
[0061]
　Further, as a comparison measurement with the composite device 201, two blowing devices (not shown), which are the same as the device 1 and the device 101 but do not have the second vent hole 70b formed in any of the bent portions 11a, are shown. (No.) was installed in the same manner as the composite device 201 to prepare a comparative composite device, and the airborne particle concentration in the comparative composite device was measured under the same conditions as the composite device 201. The measurement results of the comparative composite device are shown in Tables 2 and 3 as comparative examples.
[0062]
[table 1]

[0063]
[Table 2]

[0064]
[Table 3]

[0065]
　FIG. 9 is a view similar to FIG. 1 showing an example of the embodiment, but in this embodiment, the compound device 201 is formed by the device 301 and the device 401. The device 301 and the device 401 are the same, and in these, an expansion type blowing unit 301a instead of the blowing plate 11 of FIG. 1 is used on the downstream side of the rectifying unit 33 (see FIG. 10), and an air blowing unit is used. 22 is in a removable state or a non-removable state. However, in the illustrated example, the unit 301a is detachably fixed to the side portion 7 of the air blowing portion 22 via the arm 102 extending rearward. The unit 301a also includes a breathable front surface portion 311f and a spacer 115 located between the breathable front surface portion 311f and the air blowing portion 22, wherein the breathable front surface portion 311f and the spacer 115 are removable or non-removable from each other. It is integrated in the state. The spacer 115 includes a side wall portion 311a that is at least partially breathable, a non-breathable top surface portion 311b, and a non-breathable bottom surface portion 311c. In the device 301 and the device 401, the side wall portion 311a is a portion that is regarded as a part of the side portion of the device 301, 401 that spreads from the side edge of the breathable front surface portion 311f toward the upstream side.
[0066]
　FIG. 10 is a sectional view taken along line XX of FIG. An air blowing unit 22 is formed below the operation unit 12 whose internal structure is not shown, and an expansion type blowing unit 301a is set on the downstream side of the air blowing unit 22. The spacer 115 in the unit 301a has an opening 120 toward the air blowing portion 22, and a non-air-permeable packing 117 is interposed between the peripheral portion 116 of the opening 120 and the air blowing portion 22. The inside of the unit 301a is hollow, and the top surface portion 311b, which is a part of the spacer 115, is located above the rectifying unit 33. There is a distance D 6 between such a top surface portion 311b and the rectifying unit 33 . In the preferred unit 301a, the dimension D 6 is in the range 0-40 mm. The dimension D 6 becomes 0 mm or a value close to 0 mm when the top plate portion 113 and the fixing frame member 37 have substantially the same level. However, the present invention can be implemented in a mode in which the top surface portion 311b is below the top portion of the rectifying unit 33 in the drawing. The side wall portion 311a included in the spacer 115 will be described with reference to FIGS. In FIG. 10, the fixing frame member 37 used in the rectifying unit 33 is different from that in FIG. On the downstream side, a plurality of metal wire rods 37a having a diameter of 0.5 to 3 mm are arranged in a grid pattern to support the second honeycomb plate 57 from the downstream side. However, the fixing frame member 37 of the aspect of FIG. 10 can be replaced with the fixing frame member 37 of the aspect of FIG. 4.
[0067]
　図１１は、図９のＸＩ－ＸＩ線断面図である。スペーサ１１５における側壁部３１１ａは、整流ユニット３３の前方に位置していて幅方向の内寸Ｗ ３が次第に大きくなる第１部分３２１と、第１部分３２１の前端から下流方向Ｂに向かって延びていて通気性前面部３１１ｆと直交している第２部分３２２とを有する。第１部分３２１は非通気性であって、上流側に周縁部１１６を有し、その周縁部１１６は、少なくとも整流ユニット３３の前面の幅と同じ幅を有する開口１２０を画成している。第２部分３２２では、寸法Ｄ ７(図１０，１２参照)の範囲が通気性であって、ユニット３０１の内側から幅方向Ｘの外側に向かって空気を吹き出して空気の流れＦ ５を形成することのできる複数の第２通気孔７０ｂ（図１０ｂ参照）を有する。第２部分３２２における第２通気孔７０ｂは、図１における第２通気孔７０ｂと同様な孔径と中心間距離と作用とを有するものであって、第２部分３２２の寸法Ｄ ７（図１０，１２参照）は図６における寸法Ｄ ５に同じである。
[0068]
　図１２は、図１１における部分ＸＩＩの拡大図である。装置３０１のユニット３０１ａでは、側壁部３１１ａの第１部分３２１が幅方向Ｘにおいて吹き出し部２２の側部７を越えるように、下流方向Ｂへ斜めに延びている。それゆえ、第２部分３２２における内寸Ｗ ３は、空気吹き出し部２２における両側部７と７との間の寸法よりも大きくなっている。このように幅方向Ｘに広がりを持ったスペーサ１１５を含むユニット３０１ａは、整流ユニット３３から出た空気を整流ユニット３３における幅方向Ｘと上下方向Ｙとのうちの少なくとも幅方向Ｘへ広げることができる。また、図示例の内寸Ｗ ３を有するユニット３０１ａが使用されている図９の２台の装置３０１と４０１とでは、互いに対向している側壁部３１１ａの第２部分３２２どうしがクリアランスＣＬを形成している。なお、この発明に係る装置３０１は、第１部分３２１が幅方向Ｘにおいて空気吹き出し部２２の側部７を越えることのない態様のものに代えることも可能である。
[0069]
　装置３０１におけるスペーサ１１５の第２部分３２２では、寸法Ｄ ７の範囲に形成された複数の第２通気孔７０ｂにおいて、幅方向Ｘの外側へ向かう空気の流れＦ ５を形成する空気の吹き出しがあり、装置４０１のスペーサ１１５における第２部分３２２（図１２参照）では、２通気孔（図示せず）において、幅方向Ｘの外側へ向かう空気の流れＦ ５’を形成する空気の吹き出しがある。空気の流れＦ ５とＦ ５’とは、図７に例示の如く衝突して、装置３０１や装置４０１の上流側にあって浮遊粒子を多く含む空気がクリアランスＣＬへ侵入することを阻止すると同時に、クリアランスＣＬの下流側に高性能フィルタ２９で濾過された清浄空気を供給することができる。
[0070]
　このように使用されるユニット３０１ａにおいて、ユニット３０１ａの幅方向Ｘと上下方向Ｚとの寸法が４００～２０００ｍｍ程度であるときのスペーサ１１５の第２部分３２２どうしの間の内寸Ｗ ３は、整流ユニット３３の両側それぞれにおいて整流ユニット３３の幅よりも２０～１００ｍｍ大きくすることが好ましい。ユニット３０１ａにおける前後方向Ｚの寸法Ｄ ８は、２０～１５０ｍｍであることが好ましい。
[0071]
　図１３もまた、この発明の実施態様の一例を示す図１と同様な図である。図１３では、床面１００の上に設置された４台の装置１が幅方向Ｘと上下方向Ｙとに並ぶことによって吹き出し装置の複合装置２０１を形成し、そのうちの一部の装置１は部分的に破断した状態で示されている。ただし、破断してある装置１については、折曲部１１ａや頂面部１１ｂ等の形状の理解を容易にするために、内部構造の図示が省略されている。
[0072]
　装置１のそれぞれは、空気吹き出し部２２の上流側に外気採り入れ部２１が形成されていて、図にはその外気採り入れ部２１における採気孔２１ｂが見えている。空気吹き出し部２２は、第１通気孔７０ａが形成されている吹き出し板１１の通気性前面部１１ｆと、通気性前面部１１ｆの側縁１５と頂縁１６と底縁１７とのそれぞれにつながる折曲部１１ａと頂面部１１ｂと底面部１１ｃとのそれぞれを有し、折曲部１１ａと、頂面部１１ｂと、底面部１１ｃとには第２通気孔７０ｂと、第３通気孔７０ｃと、第４通気孔７０ｄとのそれぞれが複数形成されている。第２～第４通気孔７０ｂ～７０ｄは、それらの孔径と通気孔どうしの中心間距離とが、図１における第２通気孔７０ｂについての孔径と中心間距離とに同じである。ただし、図１３の複合装置２０１では、４台の装置１における折曲部１１ａのすべて、頂面部１１ｂのすべて、底面部１１ｃのすべてから空気を吹き出すように装置１を作ることができる他に、折曲部１１ａと頂面部１１ｂと底面部１１ｃとのうちの必要とする部位のみから空気を吹き出すように装置１を作ることもできる。たとえば、上下方向Ｙに並ぶ２台の装置１のみを使用する場合の複合装置２０１では、装置１のうちの１台では頂面部１１ｂから空気を吹き出し、もう１台では底面部１１ｃから空気を吹き出すように、それぞれの装置１を作り、頂面部１１ｂからの空気と底面部１１ｃからの空気とを衝突させることができる。
[0073]
　また、図１３の４台の装置１にあっては、幅方向Ｘにおいて対向している折曲部１１ａどうしの間、および上下方向Ｙにおいて対向している頂面部１１ｂと底面部１１ｃとの間には、クリアランスＣＬが形成されていて、そのクリアランスＣＬの寸法は、図１におけるクリアランスＣＬの寸法と同じ範囲にある。このように形成されている複合体２０１においても、それぞれのクリアランスＣＬの前方に一様空気流または清浄空気の一様空気流の流れる作業空間を形成することができる。なお、幅方向Ｘに並ぶ装置１と装置１との間、および上下方向Ｙに並ぶ装置１と装置１との間には、クリアランスＣＬを形成するためのスペーサが使用されているが、そのスペーサの図示は省略されている。そのスペーサは、装置１とは別部材のものとして用意することができる他に、装置１の一部分を幅方向Ｘの外側や上下方向Ｚの外側へ突出させることによって用意しておくこともできる。
[0074]
　これまでに例示の実施態様における吹き出し装置１，１０１，３０１，４０１は、ＨＥＰＡフィルタの如き高性能フィルタ２９を有するものとして説明されている。したがって、これらの吹き出し装置は、幅方向Ｘおよび／または上下方向Ｙに並べた複数の吹き出し装置の下流側に清浄空気の一様空気流が流れる作業空間を形成できるものであるから、プッシュ・プッシュ型吹き出し装置によってクリーンゾーンを形成するときの吹き出し装置として使用するのに好適である。ただし、この発明は、高性能フィルタ２９の使用を必須の条件とするものではなく、高性能フィルタ２９を備えていない吹き出し装置においても実施することができる。そのときの吹き出し装置は、幅方向Ｘおよび／または上下方向Ｙに並べた複数の吹き出し装置の下流側に一様空気流の流れる作業空間を形成することができる。それゆえ、この場合の吹き出し装置は、広い空間に一様空気流を供給するプッシュ・プル型の換気装置における吹き出し装置として使用するのに好適である。
[0075]
　図１４は、性能評価のために使用した複合装置２０１の一例の頂面図である。図示例の複合装置２０１は、図８と同様な装置１と装置１０１とを有するものであるが、装置１と装置１０１との通気性前面部１１ｆは、幅１０５０×高さ８５０ｍｍの大きさを有する。クリアランスＣＬは、複合装置２０１を使用する作業空間との関係において必要とされる任意の寸法に設定することができるのであるが、性能評価の際には１０，２０，３０，４０，５０ｍｍの５段階に設定した。その他の構成、例えば通気性前面部１１ｆの中央部分における吹き出し風速（０．５ｍ／ｓｅｃ）、高性能フィルタ２９（図２参照）の０．３μｍの粒子に対する捕集効率（９９．９７％）は、図８の装置１，１０１と同じである。なお、寸法Ｄ ５を有する側面部分での吹き出し風速は、０．８ｍ／ｓｅｃであった。また、通気性前面部１１ｆの中央部分における吹き出し風速は、通気性前面部１１ｆの前方２５ｍｍから少なくとも１５００ｍｍまでの範囲において、０．５ｍ／ｓｅｃであった。
[0076]
　図１４にはまた、クリアランスＣＬの寸法を二等分する線であって通気性前面部１１ｆの高さ方向の中心において複合装置２０１の前後方向Ｚへ延びる直線Ｆには、通気性前面部１１ｆからの距離がｍｍ単位で示されている。距離０ｍｍは、前面部１１ｆに一致する点であり、距離がプラスであることは通気性前面部１１ｆから下流側に向かっての距離であることを示し、距離がマイナスであることは通気性前面部１１ｆから上流側に向かっての距離であることを示している。複合装置２０１の性能評価では、装置１と装置１０１とのクリアランスＣＬを１０，２０，３０，４０，５０ｍｍのそれぞれに設定したときの直線Ｆ上における風速を測定した。風速（単位：ｍ／ｓｅｃ）の測定結果は、表４のとおりであった。
[0077]
　表４において明らかなように、装置１と装置１０１との間のクリアランスＣＬでは、上流側に向かう空気流と下流側に向かう空気流のあることがわかる。また、通気性前面部１１ｆから下流側へ約１００ｍｍ離れたときには、クリアランスＣＬを２０～５０ｍｍ、より好ましくは３０～５０ｍｍに設定するならば、通気性前面部１１ｆの前方における風速とほぼ等しい風速を直線Ｆ上でも得られることがわかる。また、図示例の装置１と装置１０１とで一様空気流の作業空間を得ようとするときには、表４のデータに基づいてクリアランスＣＬを適切な寸法に設定することが好ましいということも分かる。なお、風速の測定器には、ＫＡＮＯＭＡＸ製のＭｏｄｅｌ　１５６０を使用した。
[0078]
[表4]

[0079]
　図１５は、複合装置２０１をプッシュ・プッシュ型の吹き出し装置として使用するときの複合装置２０１の態様を例示する図である。ただし、図１５の（ａ）では、図１３で使用した単体の吹き出し装置１が対向配置されている従来型のプッシュ・プッシュ型の吹き出し装置が示されている。図５の（ｂ），（ｃ）では、一対の複合装置２０１が配置されることによってプッシュ・プッシュ型の吹き出し装置が形成されている。複合装置２０１における各吹き出し装置１は、図１３における吹き出し装置１と同じであって、高性能フィルタ（図２参照）が使用され、通気性前面部１１ｆの風速は０．５ｍ／ｓｅｃである。ただし、通気性前面部１１ｆは、幅１０５０×高さ８５０ｍｍ、隣り合う吹き出し装置１どうしの間のクリアランスＣＬは１０ｍｍ、図６に例示の寸法Ｄ ５は１０ｍｍに設定されている。図１５における双頭矢印Ｇ １～Ｇ ３は、一対の吹き出し装置１または一対の複合装置２０１の離間寸法を示し、その離間寸法Ｇ １～Ｇ ３の中点Ｓ １～Ｓ ３は、ＬＩＯＮ製パーティクルカウンター　ＫＣ１８による浮遊粒子濃度の測定点である。
[0080]
　図１５の（ａ）では、離間寸法Ｇ １が２０００ｍｍとなるように、一対の吹き出し装置１がセットされている。一対の吹き出し装置１の隅部どうしの間に延びる仮想線Ｈと通気性前面部１１ｆとで囲まれた仮想作業空間の容積は１．８ｍ ３である。
[0081]
　図１５の（ｂ）では、複合装置２０１のそれぞれが４台の吹き出し装置１で構成され、離間寸法Ｇ ２が４０００ｍｍとなるように一対の複合装置２０１がセットされている。一対の吹き出し装置２０１と仮想線Ｈとで囲まれた仮想作業空間の容積は１４．３ｍ ３である。
[0082]
　図１５の（ｃ）では、複合装置２０１のそれぞれが９台の吹き出し装置１で構成され、離間寸法Ｇ ３が６０００ｍｍとなるように一対の複合装置２０１がセットされている。一対の複合装置２０１と仮想線Ｈとで囲まれた仮想作業空間の容積は４８．２ｍ ３である。複合装置２０１それぞれからの吹出流量は４８２ｍ ３／分であった。
[0083]
　表５は、図１５の（ａ）～（ｃ）のプッシュ・プッシュ型吹き出し装置について、運転開始からの経過時間と、運転開始後における中点Ｓ １～Ｓ ３における浮遊粒子濃度の測定結果とが示されている。その浮遊粒子濃度は、（ａ）～（ｃ）それぞれにおいて任意に選んだ単体の吹き出し装置１の上流側における室内空気の浮遊粒子濃度に対する比率として測定されている。例えば、（ｂ）の装置において、経過時間１秒での測定値は
　　　１．００Ｅ＋００＝１×１０ ０＝１
であって、この値は、中点Ｓ １における浮遊粒子濃度が室内空気の浮遊粒子濃度と同じであることを意味している。また、経過時間３０秒での測定濃度は
　　　７．５６Ｅ－０．５＝７．５６×１０ －５
であって，この値は、３０秒間の運転で中点Ｓ ２における浮遊粒子濃度が室内空気のそれの１／１００００以下になったことを意味している。なお、測定値におけるＥ－０．５は１０のべき指数を意味している。すなわち、Ｅ－０．５は１０ －５を意味している。また、表５において測定値が０であることは、浮遊粒子が検出されなかったことを意味している。
[0084]
　According to Table 5, the elapsed operating time until the concentration of suspended particles becomes 1/10000 or less of that of indoor air is 19 seconds in (a), 30 seconds in (b) and 43 in (c) of FIG. Seconds. As described above, according to the push-push type blowing device using the composite device 201 according to the present invention, the work space having a large volume can be made into the clean zone in an extremely short time.
[0085]
[Table 5]

Explanation of symbols
[0086]
　1 Blow-out device
　7 Side part
　11f Breathable front part
　11a Side part (folded part)
　15 Side edge
　70a 1st ventilation hole
　70b 2nd ventilation hole
　70c 3rd ventilation hole
　112 Side plate
　113 Top plate
　114 Bottom plate
　115 Spacer
　W 3　　Inner dimension
　X Width direction
　Y Vertical direction
　Z Front-back direction
The scope of the claims
[Claim 1]
　A rectifying mechanism section is provided in a flow path of air flowing from the upstream side to the downstream side, and after the air has passed through the rectifying mechanism section, it is supplied as a uniform air flow to the downstream side of the rectifying mechanism section. An air blowing device that enables the
　device , wherein the device corresponds to a front-rear direction in which the downstream side corresponds to the flow direction of the uniform air flow, a width direction orthogonal to the front-rear direction, and the front-rear direction. and a vertical direction orthogonal to said width direction,
　the apparatus includes a breathable front portion in which a plurality of first vents and the width direction on the downstream side and the vertical direction of the rectifying mechanism is distributed A side surface portion that extends from the side edge of the breathable front surface portion that extends in the up-down direction toward the upstream side is formed on
　each of the widthwise side surfaces of the breathable front surface portion, and at least one of the widthwise both sides. A plurality of second ventilation holes are distributed in the side surface portion in, and it is possible to blow a part of the air that has passed through the rectifying mechanism portion to the outside in the width direction from the second ventilation hole. The device as described above.
[Claim 2]
　The device according to claim 1, wherein the breathable front portion extends in the width direction beyond at least one of both sides of the flow regulating mechanism portion.
[Claim 3]
　The portion of the side surface portion in which the second ventilation holes are distributed is formed by bending the plate material forming the breathable front surface portion toward the upstream side at the side edge. The device according to claim 1 or 2, wherein
[Claim 4]
　The diameter of the first and second ventilation holes is in the range of 0.5 to 4 mm, and the ratio of the area occupied by the first ventilation holes to the area of ​​the ventilation front surface portion of 10 cm 2 and the area of ​​the side surface portion of 10 cm 2 . The device according to claim 1 or 2 , wherein the ratio of the area occupied by the second ventilation hole to 2 is 20 to 50%.
[Claim 5]
　The device according to claim 4, wherein the center-to-center distance between the adjacent first ventilation holes and the center-to-center distance between the adjacent second ventilation holes are in the range of 1 to 6 mm.
[Claim 6]
　The breathable front portion has at least one end edge of an upper end edge and a lower end edge extending in the vertical direction and extending in the width direction, and the at least one end edge has the breathable front surface portion. An end surface portion that intersects and widens toward the upstream side is formed, and a plurality of third ventilation holes are distributed in the end surface portion, and one of the air that has passed through the rectification mechanism portion from the third ventilation hole. The device according to claim 1 or 2, wherein a part can be blown outward in the vertical direction.
[Claim 7]
　An end surface portion according to claim 6 is formed, and is connected between the rectifying mechanism portion and the breathable front surface portion in the up-down direction of both side wall portions and the both side wall portions extending in the up-down direction. A spacer having a top surface portion and a bottom surface portion extending in the width direction is interposed, and an inner dimension in the width direction between the both side wall portions is larger than a dimension in the width direction of the rectifying mechanism portion as it proceeds toward the downstream side. Gradually increasing in size, each of the side wall portions forming at least a portion of the side surface portion, the top surface portion and the bottom surface portion forming at least a portion of the end surface portion of the device, and the breathable front surface portion. Is connected to each of the both side wall portions, the top surface portion and the bottom surface portion of the spacer at the both side edges and the upper and lower end edges, and a plurality of the second vent holes are formed in at least one of the both side wall portions. The device according to claim 1 or 2, which is provided.
[Claim 8]
　The device of claim 7, wherein the spacer is removable in the device.
[Claim 9]
　The device of claim 7, wherein the spacer and the breathable front portion are removable from each other.
[Claim 10]
　The device according to claim 1 or 2, wherein a plurality of the third ventilation holes are formed in at least one of the top surface portion and the bottom surface portion in claim 7.
[Claim 11]
　The device is one of a plurality of the devices that are arranged side by side in the width direction and adjacent to each other, and the rectifying mechanism extends from the second ventilation hole toward the side surface portion of the adjacent device of the other party. The device according to claim 1 or 2, wherein a part of the air passing through the section can be blown out.
[Claim 12]
　The device has the breathable front face portion in at least one of an upper end edge and a lower end edge extending in the up-down direction and extending in the width direction, and the at least one end edge has the ventilation An end face portion that extends toward the upstream side is formed so as to intersect the flexible front face portion, and a plurality of third ventilation holes are distributed in the end face portion, and the end face portion is arranged in the width direction and the vertical direction. It is one of the plurality of adjacent devices, and from the second ventilation hole and the third ventilation hole, the side surface portion of the opponent device that is adjacent in the width direction and the opponent device that is adjacent in the vertical direction. 3. The device according to claim 1, wherein a part of the air that has passed through the rectifying mechanism portion can be blown toward the end surface portion of the device.
[Claim 13]
　A rectifying mechanism portion is provided in a flow path of air flowing from the upstream side to the downstream side, and after the air passes through the rectifying mechanism portion, it is supplied as a uniform air flow to the downstream side of the rectifying mechanism portion. An air blowing device that enables the
　device , wherein the device corresponds to a front-rear direction in which the downstream side corresponds to the flow direction of the uniform air flow, a width direction orthogonal to the front-rear direction, and the front-rear direction. The
　device has a vertical direction orthogonal to the width direction, and the apparatus has a breathable front surface portion in which a plurality of first ventilation holes are distributed in the width direction and the vertical direction on the downstream side of the flow regulating mechanism unit. And, from the at least one of an upper end edge and a lower end edge extending in the width direction in the up-down direction of the breathable front face portion, intersects the breathable front face portion and spreads toward the upstream side. An end surface portion of the device is formed, and a
　plurality of third ventilation holes connected to the flow path are distributed in the end surface portion, and from the third ventilation hole, a part of the air that has passed through the rectification mechanism portion is formed. The device is capable of being blown out to the outside in the vertical direction.
[Claim 14]
　The diameter of the first and third ventilation holes is in the range of 0.5 to 4 mm, the ratio of the area occupied by the first ventilation holes to the area of ​​the ventilation front surface portion 10 cm 2 , and the area of ​​the end surface portion 10 cm 2. The device according to claim 13, wherein the ratio of the area occupied by the third ventilation holes to 2 is in the range of 20 to 50%.
[Claim 15]
　15. The device according to claim 14, wherein the center-to-center distance between the adjacent first ventilation holes and the center-to-center distance between the adjacent third ventilation holes are in the range of 1 to 6 mm.
[Claim 16]
　The device is provided with side portions that are on both sides of the breathable front face portion in the width direction and that spread from the side edges of the breathable front face portion that extend in the up-down direction toward the upstream side. A plurality of second ventilation holes are distributed in the side surface portion on at least one of both sides in the direction, and a part of the air that has passed through the rectification mechanism portion can be blown out from the second ventilation hole to the outside in the width direction. 15. A device according to claim 13 or 14 which is possible.
[Claim 17]
　The device is one of a plurality of the devices that are arranged side by side in the vertical direction and are adjacent to each other, and the rectifying mechanism portion is provided from the third ventilation hole toward the end surface portion of the adjacent device of the counterpart. The device according to claim 13 or 14, which is capable of blowing out a part of the air that has passed through.
[Claim 18]
　14. A device according to claim 1 or 13, wherein the breathable front part is attachable and detachable in the device.