The present invention relates to a structure of a membrane separation apparatus for filtering liquids.
BACKGROUND
[0002]
　Recently, a method of purifying water, the method for manufacturing a fresh water etc. water containing seawater or impurities, there have been proposed various water treatment system. As a one method, a method that membrane separation it is proposed. According to this method, the osmotic membrane having fine pores, the liquid to be filtered of the subject, by transmitting at a predetermined pressure, can be separated into the impurity impermeable and water passes through the membrane.
[0003]
　For example, according to Patent Document 1, using a flat filtration membrane arranged between the two upper and lower cells, test apparatus for filtering a fluid is disclosed.
CITATION
Patent Document
[0004]
Patent Document 1: U.S. Patent 4,846,970 No.
Summary of the Invention
Problems that the Invention is to Solve
[0005]
　Using a planar filter membrane arranged between the two upper and lower cells, in the method of filtering a fluid, it is necessary to apply a predetermined pressure to the liquid at the time of filtration. Therefore, to withstand this pressure, the two upper and lower cells, it is necessary to firmly fix the filtration membrane. In such structure, the load from the top and bottom cells take the filter membrane, which may fine crushed and scratches may occur. This fine crushing and scratches may cause performance degradation of the water leakage or filtration membranes.
[0006]
　Against the above circumstances, an object of the present invention is to provide a structure collapse and scratches membrane separation apparatus which suppresses the occurrence of the filtration membrane.
Means for Solving the Problems
[0007]
　To achieve the above object, membrane separation apparatus for filtering liquids according to the present invention, as one aspect, there is provided a membrane separation apparatus for filtering liquid, feed to feed a filtration target flows a primary body having a flow path, and the secondary side body having a permeate passage filtered permeate flow, and a flat-shaped filtration membrane located between the primary-side body said secondary body , and wherein the primary body has an inner surface facing the secondary-side main body, this inner surface, and a primary-side recessed surface defining the feed passage between the filtration membranes , and a primary-side surface of the protrusion surrounding the primary surface of the recess, the secondary body has an inner surface facing the said primary body, this inner surface, said at said filtration membrane and the secondary side recessed surface defining a permeate flow path, the secondary side surrounding the secondary recessed surface And a section surface, further, the sealant located between the primary side the primary side surface of the protrusion of the body and said filtration membrane, located between the filtration membranes and the sealing material, said filtration the surface of the film, from the portion in contact with at least the sealing member, and a flat-shaped protective member extending across to a boundary between the primary side the primary side recessed surface and the primary surface of the protrusion of the body, and the protective member and a bonding agent located between the filtration membranes.
[0008]
　Further, the membrane separation apparatus for filtering liquids according to the present invention, furthermore, the feed channel may be one long length than the permeate flow path. In this way, the boundary between the primary-side recessed surface and the primary surface of the protrusion, and, and the boundary between the secondary-side recessed surface and the secondary-side surface of the protrusion, the at different positions so that the contact with the filtration membrane. As a result, it is possible to disperse the stress concentration portion of the filtration membrane, it is possible to suppress scratches and dents generation occurring in the filtration membrane. The length of the feed channel and the permeate flow path may be the same.
[0009]
　Further, the membrane separation apparatus for filtering liquids according to the present invention, as another embodiment, there is provided a membrane separation apparatus for filtering liquids, primary with feed passages feed a filtration target flows It includes a side body, and the secondary side body having a permeate passage filtered permeate flow, and a flat-shaped filtration membrane located between the secondary side body and said primary body the primary body has an inner surface facing the secondary-side main body, this inner surface, and a primary-side recessed surface defining the feed passage between the filtration membranes, the primary recess and a primary-side surface of the protrusion which surrounds the surface, the secondary body has an inner surface facing the said primary body, this inner surface, said permeate channel between the filtration membrane has a defined secondary side recessed surface, and a secondary-side surface of the protrusion which surrounds the secondary recessed surface, further , Located between the primary side the primary side surface of the protrusion of the body and said filtration membrane, on the surface of the filtration membrane, and at least the primary side the primary side recessed surface and the primary surface of the protrusion of the body and a glue extending over part including the boundary.
[0010]
　Further, the membrane separation apparatus for filtering liquids according to the present invention, as another embodiment, there is provided a membrane separation apparatus for filtering liquids, first feed passage for supplying liquid is filtered target flows a first body having, two located between the second body having a second feed passage through which the feed liquid is filtered target, and the first body and the second body a flat-shaped filtration membrane, and a flat-shaped transparent spacer located between the two flat-shaped filtration membrane, wherein the first body is inside opposed to the said second body has a surface, is the inner surface, the first recessed surface defining a first said first feed passage between the filtration membrane which is located on the first body side of said two filtration membranes When, and a first protrusion surface surrounding the first recess surface, the second body, facing the said first body inside Has a surface, is the inner surface, a second recessed surface defining said second permeate flow path in a second filtration membrane located on the second body side of said two filtration membranes When, and a second protrusion surface surrounding the second recess surface, further, the position between the first of said first protrusion surface and the first filtration membrane in the body and one sealing member, and a second sealing member located between said second of said second said convex portion surface of the second filtration membrane of the body, the first sealing member and the first located between the filtration membranes, said the surface of the first filtration membrane, from the portion in contact with at least the first sealing member, the first of said first recess surface and the first convex portion of the body a flat-shaped first protective member extending across to the boundary between the surface, located between the second sealing member and the second filtration membrane, the second filtration The surface of the film, from the portion in contact with at least the second sealing member, said second flat shape that extends over to a boundary between the second concave surface and the second surface of the protrusion of the body second a protective member, located between the and the first adhesive located between the first protective member and the first filtration membrane, the second protective member and the second filtration membrane and a second adhesive.
[0011]
　Further, wherein the first feed passage and the second feed passage, and the magnitude of the first feed passage and the second feed passage of the corresponding size ( for example, it may be arranged feed spacer of approximately the same size).
[0012]
　Further, the membrane separation apparatus for filtering liquids according to the present invention, as another embodiment, there is provided a membrane separation apparatus for filtering liquids, first feed passage for supplying liquid is filtered target flows a first body having, two located between the second body having a second feed passage through which the feed liquid is filtered target, and the first body and the second body of the flat-shaped filtration membrane, wherein comprises a transparent spacer in a flat shape situated between the two flat-shaped filtration membrane, said first body, facing the said second body to an inner surface, this inner surface, a first defining a first said first feed passage between the filtration membrane which is located on the first body side of said two filtration membranes has a concave surface and a first protrusion surface surrounding the first recess surface, the second body, facing the said first body Having a side surface, this inner surface, a second recess defining a second said second permeate flow path in the membrane filter is located on the second body side of said two filtration membranes and the surface, and a second protrusion surface surrounding the second recess surface, the first adhesive located between said first filtration membrane and the first body, the second and a second adhesive located between the body and the second filtration membrane.
[0013]
　Further, wherein the first feed passage and the second feed passage, and the magnitude of the first feed passage and the second feed passage of the corresponding size feed spacer may be disposed.
[0014]
　Furthermore, the feed spacer is a mesh-like, liquid for supply may be made of material such that it can pass through the inside. In this manner, by using the mesh-like material into the feed channel, it can provide an appropriate resistance to the liquid flowing inside. Therefore, the pressure of the liquid for supplying flowing inside the feed spacer can be appropriately enhanced.
[0015]
　Further, wherein the permeate flow path, the size corresponding to the size of the permeate channel, transmitting spacer may be disposed.
[0016]
　Furthermore, the transmission spacer may be a structure in which a plurality of holes communicating with the inside. By using materials of such structures in the transmission spacer liquid after transmission that has passed through the filtration membrane can flow stably permeate flow path.
[0017]
　Further, the membrane separation apparatus for filtering liquids according to the present invention, furthermore, the adhesive located between the first filtration membrane and a first body, a filtration membrane and the first of the first filtration membrane It can be assumed to be positioned so as to bond the periphery of the body. By doing so, according to the first filtration membrane, without reducing the filtration efficiency of the liquid, it can be fixed and the first filtration membrane and the first body.
[0018]
　Further, the membrane separation apparatus for filtering liquids according to the present invention, furthermore, the adhesive located between the second filtration membrane and the second body, the filtration membrane and the second second filtration membrane It can be assumed to be positioned so as to bond the periphery of the body. In this way, according to a second filtration membrane, without reducing the filtration efficiency of the liquid, it can be fixed and the second filtration membrane and a second body.
[0019]
　In order to achieve the above object, the present invention provides, as another aspect, a membrane separation unit for filtering liquid, inside a first permeable flat-shaped supply liquid flows is filtered target and feed spacer, and a first protective member surrounding a periphery of the first feed spacer, and transmissive second feed spacers in a flat shape supplied liquid flows is inside the filtering target, the second feed spacer of the second protective member surrounding, said first feed spacer and the two flat shape located between the first protective member and the second feed spacer and the second protective member a filtration membrane, and a flat-shaped transparent spacer located between the two flat-shaped filtration membrane, the first located between the said and the first protective member first filtration membrane between the adhesive, and the second protective member and the second filtration membrane And a second adhesive located.
[0020]
　Furthermore, membrane separation unit for filtering a fluid according to the present invention, the said the size of the inner peripheral portion in contact with the outer peripheral portion of the first feed spacer of the first protective member, the second protective member the magnitude of the inner peripheral portion in contact with the outer peripheral portion of the second feed spacer can also be different. In this way, by changing the size of the inner peripheral portion of the protective member, the position where the load is applied to the filtration membrane by the first protective member, a load is applied to the filtration membrane by the second protective member since the position and shifts, it is possible to disperse stress exerted on the filtration membranes. As a result, it is possible to suppress scratches and dents of occurrence to the filtration membrane.
[0021]
　Furthermore, membrane separation unit for filtering a fluid according to the present invention, furthermore, the part of the periphery of the transparent spacer is the permeate exhaust passage filtered permeate flows are formed, wherein the permeate exhaust passage, and the first protective member and the second protective member are formed together extend from a portion of each of the peripheral portion, of the peripheral portion of the transparent spacer, the portion permeate exhaust passage is not provided may be assumed to be closed by the adhesive.
The invention's effect
[0022]
　According to the present invention, it is possible to provide a structure of a membrane separation apparatus which suppresses the occurrence of collapse and scratches filtration membrane.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023]
[Figure 1] of the membrane separation apparatus according to the first embodiment is an assembly view showing the component parts.
FIG. 2 is a cross-sectional view of a membrane separator according to the first embodiment.
[Figure 3] of the membrane separation apparatus according to the first embodiment, is a schematic view showing a positional relationship of each component.
4 is a cross-sectional view of a membrane separation apparatus according to the second embodiment.
5 is a perspective view of a membrane separation unit according to the third embodiment.
6 is a cross-sectional view of the membrane separation unit according to the fourth embodiment.
7 is a top view of the membrane separation unit according to the fourth embodiment.
8 is a sectional view schematically showing a film separation apparatus according to a fourth embodiment.
9 is a perspective view schematically showing a film separation apparatus according to a fourth embodiment.
DESCRIPTION OF THE INVENTION
[0024]
　Hereinafter, the embodiments of the present invention will be described in detail and specifically with reference to the drawings.
[0025]
[First Embodiment]
　First with reference to FIG. 1, will be described schematic configuration of a membrane separation apparatus according to the first embodiment. 1, the membrane separation apparatus according to the first embodiment, is an exploded view showing the component parts. As shown in FIG. 1, a membrane separation apparatus 10 according to this embodiment, in a primary side main body 1 and the secondary-side main body 2, shim ring 9, the outer seal member 5, feed spacer 3, the inner seal member 4, the protective member 6, a filtration membrane 7, and has a sandwiched by transparent spacer 8. Each member, by being sandwiched between the primary-side body 1 and the secondary-side main body 2, subjected to compressive force, has been fixed. Further, the primary side body 1 and the secondary-side main body 2 is secured by bolts 19.
[0026]
　Next, with reference to FIGS. 1 and 2, a detailed structure of a membrane separation apparatus according to the first embodiment. Figure 2 is a cross-sectional view of the membrane separation apparatus according to the first embodiment. Position of the cross section corresponds to the A-A cross section in FIG.
[0027]
　As shown in FIG. 2, in the drawing the upper end surface of the primary body 1 includes a primary-side recessed surface 11 located at the center, a primary-side surface of the protrusion 12 surrounding it. The depth of primary recess surface 11, and the depth of the recess for the primary-side projections 12, the width and thickness and corresponding feed spacer 3 disposed herein (e.g., nearly identical) are. Accordingly, as shown in FIG. 2, feed spacer 3 is adapted to fit substantially without clearance into the recesses formed in the primary surface of the recess 1. Here, the area enclosed by the primary side recessed surface 11 and the filtration membrane 7 (area feed spacer 3 is located) is a feed channel, so that liquid flows to be filtered target going on.
[0028]
　As shown in FIG. 2, at both ends of the primary side body 1 of the primary-side surface of the recess 11, supply port 13 and the concentrated water discharge port 14 is provided. The supply ports 13 and concentrated water outlet 14 has a respective view in the vertical direction to the insertion hole shape. As shown in FIG. 1, these holes form, when viewed from the open end direction of the hole, has a oval (or substantially rectangular). Here, the supply port 13 and the concentrated water discharge port 14, although for convenience distinction of explanation, these structures are the same (symmetric in the drawing). Therefore, in use of the apparatus, it is possible to replace the role (and name).
[0029]
　Further, as shown in FIG. 2, one on the primary side in the drawing the upper end surface of the projection surface 12, toward the outer side (left and right end side) from the figure the center side, the inner sealing member groove 16, respectively, the positioning pins 15, outer sealing member groove 17, bolt holes 18 are provided.
[0030]
　Further, as shown in FIG. 2, the inner sealing member groove 16, the inner sealing member 4, also, the outer sealing member groove 17 is outside the sealing member 5, are disposed respectively. Here, as shown in FIG. 1, the inner sealing member 4 and the outer ring 5 has a single annular respectively.
[0031]
　Further, on the primary side surface of the protrusion 12 and between the inner ring groove 16 and the outer sealing member groove 17, the positioning pins 15 are provided. The positioning pin 15 has a projecting upward columnar shape, and has a shape corresponding to the positioning holes 25 provided in the corresponding portion of the secondary side body 2. As shown in FIG. 2, at the time of assembling of the primary body 1 and the secondary-side main body 2, the positioning pin 15 is adapted to be inserted into the positioning hole 25.
[0032]
　Further, on the primary side surface of the protrusion 12, on the outside in the drawing for the outer sealing member groove, the bolt hole 18 is provided. Furthermore, in the secondary-side main body 2, at positions corresponding to the bolt holes 18, bolt holes 28 are provided. Thus, from the top of the bolt hole 28 in FIG. 2, by inserting bolts 19, also bolt 19 is inserted through the bolt holes 18, it can be fixed to the primary-side main body 1 and the secondary-side main body 2 and going on.
[0033]
　On the other hand, as shown in FIG. 2, the central portion of the secondary-side main body 2, the permeate exhaust passage 23 which penetrates in the vertical direction are provided. The width of the permeate discharge channel 23 is narrower compared to the width of the supply port 13 and the concentrated water discharge port 14 is provided on the primary side body 1. This is the flow rate of the liquid passing through the permeate discharge channel 23, because there is often a small amount compared with the flow rate of liquid passing through the supply port 13 and the concentrated water discharge port 14. As shown in FIG. 1, the shape viewed permeate exhaust passage 23 from the open end side has a oval (or substantially rectangular).
[0034]
　As shown in FIG. 2, of the lower end face of the secondary-side main body 2, the portion corresponding to the primary side surface of the recess 11 on the primary side body 1 than ambient, the secondary recessed one step upward in the drawing recessed surface 21 is provided. Furthermore, this secondary recessed surface 21, transmitted through the spacers 8 corresponding to the magnitude of this recess is arranged. In this embodiment, the transmission spacer 8, by having a plurality of holes communicating with the inside, so that the internal liquid can pass. Also here, the region surrounded by the secondary-side recessed surface 21 and the filtration membrane 7 (region transmissive spacer 8 is arranged) is a permeate passage, the liquid having passed through the filtration membrane 7 and it has a flow path that flows.
[0035]
　Further, the periphery of the secondary-side surface of the recess 21 has a secondary-side surface of the protrusion 22, which protrudes downward in FIG. 2 than the secondary-side surface of the recess 21. The secondary recessed surface 21, symmetrically outward (left and right end side) from the center in the figure, the positioning holes 25 recessed in FIGS upper direction, the bolt holes 28 passing through in the vertical direction in the figure door is provided.
[0036]
　As shown in FIG. 2, between the primary-side body 1 and the secondary-side main body 2, a filtration membrane 7 is placed. This filter membrane 7, it is possible to use a filter membrane having a reverse osmosis membrane (RO membrane), such as microporous. The length of the width direction and the depth direction in FIG. 2 of the membrane 7 is longer than the width and the depth of at least the primary side surface of the recess 11 and the secondary-side surface of the recess 21, and the width of the inner sealing member groove 16 and It is longer than the depth.
[0037]
　Furthermore, between the primary side main body 1 and the filtration membrane 7, the protective member 6 is provided. The protection member 6, at least, extends over the portion in contact with the inner sealing material 4, to the boundary of the primary side the primary side surface of the protrusion 12 of the body 1 and the primary-side surface of the recess 11. As shown in FIG. 1, the protective member 6 is present in the first embodiment, has a rectangular frame shape, are disposed so as to surround the same manner on all sides of the primary side surface of the recess 11 .
[0038]
　Incidentally, FIG. 3 is a schematic diagram created for the purpose of assisting the understanding of the positional relationship between the parts. Figure 3 is a perspective from above in Figure 2 shows the arrangement of some components. As shown in FIG. 3, the filter membrane 7 extends in a wider range than the protective member 6. The inner sealing member 4 is disposed so as to entirely overlap with the protective member 6.
[0039]
　Further, as shown in FIG. 2, the positioning pin 15 is a cylindrical shim rings 9 is inserted. The shim ring 9 has a role to secure a constant clearance of the primary body 1 and the secondary-side main body 2. The height of the shim ring 9, corresponds to the sum of the height of the membrane 7 and the protective member 6 (e.g., substantially equivalent) are.
[0040]
　Furthermore, between the protective member 6 and the filtering film 7, an adhesive (not shown) is interposed, the protective member 6 and the filtration membrane 7 is adhered by the adhesive.
[0041]
　Next, with reference to FIG. 2, it will be described by membrane separation apparatus 10 according to the first embodiment for the filtration method of a liquid. First, the supply port 13, the liquid to be filtered target, is injected at a predetermined pressure. Then, the injected liquid, the internal feed spacer 3 is feed channel, flows from the right direction in the figure to the left direction, and is discharged from the concentrated water discharge port 14. Here, the liquid flowing inside the feed spacer 3, by resisted by the mesh structure, the pressure of the liquid is maintained at a feed flow path, or the pressure is increased. By thus pressure is applied, the liquid to be filtered target is filtered by the filtration membrane 7. Then, the liquid having passed through the filtration membrane 7, it flows into the permeate channel on the upper side in FIG. 2 (transmission spacer 8), is discharged from the permeate discharge channel 23. On the other hand, the concentrated water discharge port 14, the supply water is discharged enriched.
[0042]
　On the other hand, in the filtration method, a predetermined pressure is applied to the feed liquid within the membrane separation layer 10 as described above. This pressure, from between the filtration membranes 7 and the primary side body 1, there is a possibility that the supplied liquid is leaked. Therefore, between the filter membrane 7 between the primary side body 1 is provided with inner sealing material 4.
[0043]
　Inner sealing material 4, the primary side body 1 positioned on the lower side in the Figure 2, compressed by the protection member 6 on the upper side, modified as appropriate. Thus, the inner sealing member 4, together with the functions as the buffer agent, the gap between the upper and lower parts (the protective member 6 and the primary-side main body 1), the liquid to be filtered target has a role to prevent the leaking .
[0044]
　Here, membrane separation apparatus 10 according to the first embodiment, if the fine scratches or dents on the filtration membrane 7 occurs, undesired problems. Specifically, leaks of liquid supplied from a gap caused by scratches and dents, thereby filtering performance is lowered. In addition, the liquid from such gap to flow out, reduces the pressure on the liquid in the filtration, filtration efficiency is remarkably lowered.
[0045]
　By the way, such fine scratches and dents may occur due to the filtration membrane 7, not known in detail. However, the present in the membrane separation apparatus close in structure to the membrane separation apparatus 10 in the first embodiment, near the inner sealing material 4, and, in the vicinity of the boundary between the primary-side surface of the protrusion and the primary-side surface of the recess in the primary body that there is frequently prone trend, it was being turned out by the study by the inventors of the present invention.
[0046]
　On the other hand, the present in the membrane separator 10 in the first embodiment, the position between the filter membrane 7 and the inner seal member 4, beyond the boundaries of the primary-side surface of the protrusion and the primary-side surface of the recess in the primary body position to the protective member 6 is disposed. Therefore, the occurrence of fine scratches or dents on the filter membrane 7, can be suppressed.
[0047]
　Incidentally, the outer sealing member 5, similarly to the inner sealing member 4, the primary side body 1 positioned middle bottom, is compressed by the secondary-side main body 2 positioned on the upper side, deformed, a gap of these components from also plays role as a buffer of the upper and lower members together with preventing liquid to be filtered object is leaked.
[0048]
　Here, the protective member 6 and the filtering film 7 is adhered by an adhesive. Therefore, the gap between the protective member 6 and the filtering film 7, it is possible to effectively prevent the liquid be filtered from leaking.
[0049]
　In the present first embodiment, portions be fixed by adhesives, it is only between the protective member 6 and the filtration membrane 7. Thus, by Prefer not bonded to the other components, so that only a relatively exchange frequent protective member 6 and the filtration membrane 7 can be easily exchanged.
[0050]
　The components used in the first embodiment can use various types of members. For example, the primary side body 1 and the secondary-side main body 2, and a stainless steel such as SUS316L, such alloys HASTELLOY, can be used a material having chemical resistance and high durability. The filter membrane 7 has a communication hole, it is possible to use a RO membrane or the like made of polyamide material and the like. The protective member 6 can be used chemical resistance, a resin material such as materials and PVC having high durability (PVC). The transparent spacer 8, such as manufactured by SUS304, to be able to use a sintered metal with a thickness of about approximately 1.0mm of porous, it is also possible to use a material of a mesh-like shape, such as an internal liquid can pass . The feed spacer 3 can be used in the order of about 0.5 mm ~ about 1.5mm thick, the material of the mesh shape or the like. The inner sealing member 4 and the outer sealing member 5 may be a diameter of about 3.0 mm ~ 4.0 mm, fluorine rubber, nitrile rubber, hydrogenated nitrile rubber, a material such as perfluoroelastomer. The material of the adhesive, it is possible to use two-component curing type urethane-based adhesive or the like to use a mixture of polyol and polyisocyanate.
[0051]
Second Embodiment
　with reference to FIG. 4, the membrane separation apparatus will be described according to a second embodiment. Incidentally, the second embodiment is a modification of the first embodiment (FIGS. 1-3), will not be described which are indicated by the same numerals for the same parts in the drawings, the differences It will be described in detail.
[0052]
　This in membrane separator 210 in the second embodiment, among the membrane separation apparatus 10 shown in the first embodiment, the inner sealing member 4, the inner sealing member groove 16, the protective member 6, positioning pins 15, positioning hole 25, has a shape which is omitted shim ring 9. Further, the filtration membrane 7, and the contact portion between the primary side body 1 is bonded by an adhesive. With such a structure, it is possible to eliminate leakage due to performance degradation of the sealing material.
[0053]
　In the present embodiment, in perspective from the front in FIG. 4, the size of the primary-side surface of the recess 11 is smaller than the size of the secondary-side surface of the recess 21. Thus, the position of the boundary between the primary side recessed surface 11 and the primary-side surface of the protrusion 12, so that the displaced with respect to the position of the boundary between the secondary-side recessed surface 21 and the secondary-side surface of the protrusion 22. Consequently, the position of the force applied to the filter membrane 7 becomes the vertical in a different manner, it is possible to suppress scratches and dents occurring in the filtration membrane 7.
[0054]
　The size of the primary-side recessed surface 11 and the secondary-side surface of the recess 21 may be a different size same for the depth direction in FIG. 4. Furthermore, the primary-side recessed surface 11 may be larger than the secondary-side surface of the recess 21. Such, modification different in size of the primary side and the secondary side can be adopted in the first embodiment.
[0055]
Third Embodiment
　with reference to FIG. 5, the membrane separation unit is described according to a third embodiment. Incidentally, the third embodiment, since the first is a modification of the embodiment (FIGS. 1-3), omitting their overlapping descriptions, the differences will be described in detail.
[0056]
　Figure 5 is a diagram showing a membrane separation unit 310 according to the third embodiment. In FIG. 5, a description of a portion corresponding to the first one described in the embodiment of the primary body 1 and the secondary-side main body 2 (see Figure 2), is omitted for the purpose of assisting the understanding of the description there.
[0057]
　FIG. 5 shows a stacked structure of five layers. The top layer in Fig. 5, a frame-shaped protective member 106 is disposed. Inside of the protective member 106, feed spacer 103 is arranged to have a large thickness corresponding to the protective member 106 (e.g., approximately the same thickness). Then, the layer of the lower, filter membrane 107 is disposed. Furthermore, the underlying layers, transparent spacer 108 is disposed. Layered structure shown in Figure 5, centered on the transmission spacer 108, the same members above and below the target is located. In other words, the lower layer of the transparent spacer 108, is disposed the filtration membrane 107, further, the underlying, and feed spacer 103, layer composed of the protective member 106 is disposed surrounding the.
[0058]
　The fixing of the layers, for example, may be used adhesives used in the first embodiment. In this embodiment, securing the 5-layer all laminated with an adhesive. However, the method of fixing is not limited to this, only the protective member 106 and filtration membrane 107 bonded with an adhesive, may be fixed to other components by a bolt or the like. As the method of bonding, the protective member 106 may be fixed by painting the adhesive to the entire surface in contact with the filtration membrane 107. In the case of fixing the filtration membrane 107 and transmitting spacer 108 by an adhesive, in order to secure the filtration performance and transmission performance of the liquid, it adheres only around the peripheral portion while avoiding the center.
[0059]
　This in membrane separation unit 310 according to the third embodiment, by flowing a liquid to be filtered target from the vertical direction in the figure, the permeate having passed through the filtration membrane 107, and flows into the permeate spacer 108. The permeate is discharged from the end of the transmission spacer 108.
[0060]
　In the third membrane separation unit 310 according to the embodiment of, since it is possible to flow the liquid to be simultaneously be filtered in the vertical direction in the drawing, thus improving the filtration efficiency. Further, it is possible to apply a uniform pressure from above and below, it is possible to suppress the deformation due to the pressure of each layer. Therefore, to suppress the damage to the filtration membrane 107, as a result, it is possible to extend the life of the membrane separation unit 310.
[0061]
　Note that the transmission spacer 8 in the third embodiment, such as may be the internal liquid passes employs the material of the mesh shape or the like. However, it is also possible to use, as employed in the first embodiment and the second embodiment, the sintered metal or the like having a plurality of holes communicating with the inside.
[0062]
Fourth Embodiment
　with reference to FIGS. 6 to 9 will be described membrane separation unit and a membrane separation apparatus according to a fourth embodiment. Incidentally, the fourth embodiment, since the third is a modification of the embodiment (FIG. 5), omitting their overlapping descriptions, the differences will be described in detail.
[0063]
　Figure 6 shows a cross-sectional view of the membrane separation unit 410 according to the fourth embodiment. As shown in FIG. 6, the top layer of the protective member 106b is in the membrane separation unit 410 results in an annular (or ring) at the right end in the figure, and is integrally connected to the bottom layer of the protective member 106b. Moreover, the internal cavity of the annular portion, for permeate flow, has a permeate discharge channel 123.
[0064]
　Here, transparent spacer 8, of which the peripheral edge, the rightmost other portions of FIG. 6 leading to the permeate exhaust channel 123 (left, back end portion, the proximal end) 411 (hereinafter, the sealing portion a) of the adhesive application, such as by impregnation, it can be closed. Thus, the liquid that has flowed into the permeate spacer 8 is the flow out into the permeate exhaust channel 123 of the right end in all views. The end portion of the transmission spacer 8, in place of the method for closing the adhesive in this manner, another member on the outer periphery of the sealing portion 411 (e.g., primary body as shown in the first to third embodiments it is also possible to flow permeate into predetermined flow path by placing 1 and the secondary-side main body 2, etc.).
[0065]
　Figure 7 is a top view of the membrane separation unit 410 according to the fourth embodiment. As shown in FIG. 7, the permeate exhaust passage 123, the lower closed end in the figure, and an open end to the upper side in FIG. Therefore, the liquid flowing from the opening of the protective member 106b is being filtered by the filtration membrane 107, after flowing through the transmission spacer 108, it flows into the permeate exhaust passage 123, the direction of the arrow shown on the upper side in FIG. 7 and it is discharged to.
[0066]
　In the present embodiment, one end of the permeate discharge channel is set to the closed end, it is also possible to make both sides with the open end. Furthermore, the permeate discharge channel 123 can be provided on the left and right ends in FIG. Furthermore, transmission spacer 108 and filtration membrane 107, to prevent leakage of liquid from the end face, may also be a blocking structure in the end face.
[0067]
　8 used a membrane separation unit 410 according to the fourth embodiment, showing a cross-sectional view of the membrane separation apparatus 510. Further, in FIG. 9, using a membrane separation unit 410 according to the fourth embodiment, it shows a perspective view of a membrane separation apparatus 510. As shown in FIG. 8, the membrane separation device 510, above and below the membrane separation unit 410, and the first body 401 and second body 402 are arranged. Furthermore, between the protection member 106b and the second body 402, and between the protective member 106b and the first body 401 are arranged a sealing material 403. Incidentally, without using the sealing material 403, between the protection member 106b and the second body 402, and between the protective member 106b and the first body 401 may be bonded by adhesive directly, respectively. Further, the upper and lower first body 401 and second body 402 are fixed by bolts (not shown).
[0068]
　As shown in FIGS. 8 and 9, the first body 401, is provided with a first supply port 413 and the first concentrated water outlet 414 extending in the vertical direction in the figure, during which the feed in the flow path, feed spacer 430 is installed. Similarly, the second body 402, Yes and second supply ports 423 and the second concentrated water discharge port 424 is provided, the feed channel therebetween, feed spacer 440 is installed.
[0069]
　The structure as described above, the upper and lower supply ports 413 and 423, the liquid to be filtered target is supplied, (the direction of the late crop side arrows in FIG. 9) permeate exhaust passage 123 provided in the membrane separation unit 410 from the permeate is discharged. In addition, of the supplied liquid, concentrated water which has been concentrated without being filtered is discharged from the upper and lower concentrated water discharge port 414 and 424.
[0070]
　Note that the transmission spacer 8 in the fourth embodiment, like the third embodiment, as can be the internal liquid passes employs the material of the mesh shape or the like. However, it is also possible to use, as employed in the first embodiment and the second embodiment, the sintered metal or the like having a plurality of holes communicating with the inside. Further, the fourth embodiment may be modified as in the second embodiment. That is, except for the protective member and the seal member, the first body and the second body may be directly bonded to the membrane separation unit 410.
[0071]
Other aspects]
　Description of the foregoing embodiments are illustrative for describing the manufacturing method and apparatus for membrane separation apparatus and a membrane separation unit according to the present invention, to limit the invention set forth in the appended claims not. The structure of each part of the present invention is not limited to the embodiments described above, various modifications are possible within the technical scope described in the appended claims.
[0072]
　For example, in the embodiments described above, the sizes of the feed channel and the permeate flow path may not be the same, for example, the width of the feed channel, the depth, (2, 4, the front in FIG. 8 description from the perspective of direction), the width of the permeate flow path, the depth may be larger than. Further, in the above embodiment, the primary body and the secondary-side main body (or the first body and the second body) include, but are used metals, it is also possible to use a resin material. Furthermore, the fixed, there is a point of using a bolt, but may also be fixed by fitting, welding, or the like, other securing methods. Further, filtration membranes used in this embodiment can also be used those obtained by laminating a plurality of filtration membranes.
DESCRIPTION OF SYMBOLS
[0073]
1 primary body
2 secondary body
3 feed spacer
4 inner sealing material
5 outer sealing material
6 protective member
7 filtering membrane
8 permeation spacers
9 shim ring
10 membrane separator
11 primary side surface of the recess
12 the primary surface of the protrusion
13 supply port
14 concentrated water discharge port
15 positioning pin
16 inside the sealing member groove
17 outer sealing member groove
18 bolt hole
19 bolt
21 secondary recessed surface
22 secondary-side protrusion surface
23 permeate exhaust passage
25 positioning hole
28 bolt hole
103 feed spacer
106 protective member
106b protective member
107 filtration membrane
108 transmission spacer
123 permeate exhaust channel
310 membrane separation unit
401 first body
402 second body
403 sealing material
411 sealing portion
413 first supply port
414 first concentrated water discharge port
410 membrane separation unit
423 first second supply port
424 second concentrated water discharge port
430 feed spacer
440 feed spacer
510 membrane separation unit

WE claims

A membrane separation apparatus for filtering liquids,
　a primary-side main body having a feed passage feeding liquid is filtered target flows,
　and the secondary side body having a permeate passage filtered permeate flows ,
　a flat-shaped filtration membrane located between the secondary side body and said primary body
　includes a
　said primary body has an inner surface facing the secondary-side main body, the inner surface, and a primary recess surface defining the feed passage between the filtration membranes, and a primary-side surface of the protrusion surrounding the primary surface of the recess,
　the secondary body, that said has an inner surface facing the primary body, this inner surface, wherein the secondary recessed surface defining the permeate channel between the filtration membrane, the secondary-side protruding portion surrounding the secondary recessed surface and a surface,
　further, located between the primary side the primary side surface of the protrusion of the body and said filtration membrane sheet And sealing material,
　located between the filtration membranes and the sealing material, the surface of the filtration membrane, from the portion in contact with at least the sealing member, the primary side the primary side recessed surface and the primary-side protruding portion of the body a flat-shaped protective member extending across to the boundary between the surface
　and the adhesive located between the filtration membranes and the protective member
　membrane separation device comprising a.
[Requested item 2]
　Wherein the feed channel, the size of feed spacer corresponding to the magnitude of the feed channel is arranged, the membrane separation apparatus according to claim 1.
[Requested item 3]
　The feed spacer is made of a mesh-like material, membrane separation device according to claim 1.
[Requested item 4]
　Wherein the permeate flow path, the permeate flow path size corresponding to the size of the transmission spacer is arranged, the membrane separation apparatus according to claim 1.
[Requested item 5]
　The transmission spacer is a structure in which a plurality of holes communicating with the inside, the membrane separation apparatus according to claim 1.
[Requested item 6]
　A membrane separation apparatus for filtering liquids,
　a primary-side main body having a feed passage feeding liquid is filtered target flows,
　and the secondary side body having a permeate passage filtered permeate flows ,
　a flat-shaped filtration membrane located between the secondary side body and said primary body
　includes a
　said primary body has an inner surface facing the secondary-side main body, the inner surface, and a primary recess surface defining the feed passage between the filtration membranes, and a primary-side surface of the protrusion surrounding the primary surface of the recess,
　the secondary body, that said has an inner surface facing the primary body, this inner surface, wherein the secondary recessed surface defining the permeate channel between the filtration membrane, the secondary-side protruding portion surrounding the secondary recessed surface and a surface,
　further, located between the primary side the primary side surface of the protrusion of the body and said filtration membranes, prior to The surface of the filtration membrane, and an adhesive extending over the portion including the boundary between at least the primary side the primary side recessed surface and the primary surface of the protrusion of the main
　membrane separation device comprising a.
[Requested item 7]
　Wherein the feed channel, the size of feed spacer corresponding to the magnitude of the feed channel is arranged, the membrane separation apparatus according to claim 6.
[Requested item 8]
　The feed spacer is made of a mesh-like material, membrane separation device according to claim 6.
[Requested item 9]
　Wherein the permeate flow path, the size of which corresponds to the size of the permeate channel, transmission spacer is arranged, the membrane separation apparatus according to claim 6.
[Requested item 10]
　The transmission spacer is a structure in which a plurality of holes communicating with the inside, the membrane separation apparatus according to claim 6.
[Requested item 11]
　A membrane separation apparatus for filtering liquids,
　the first body and, having a first feed channel of the feed liquid is filtered target flows
　a second feed stream of the feed liquid flows is filtered target a second body having a road,
　the first body and the second and two flat-shaped filtration membrane located between the body and
　located between the two flat-shaped filtration membrane the transmission spacer Tairajo
　comprises a,
　the first body has an inner surface facing the said second body, this inner surface, a first of said two filtration membranes and a first protrusion surface surrounding the first recess surface defining said first feed passage between the first filtration membrane located on the main body side, the first recess surface,
　the second body has an inner surface facing the said first body, is the inner surface, the second position on the main body side of said two filtration membranes Has a second recessed surface defining said second permeate flow path in the second filter membranes, and a second protrusion surface surrounding the second recess surface,
　further, the first first seal member and, located between the filtration membranes of the first and the first surface of the protrusion of the body of
　the said and second said second protrusion surface of the body a second filtration membrane second sealing member and, located between the
　located between said first sealing member and the first filtration membrane in the surface of the first filtration membrane, at least the first sealing member from a portion in contact, the flat-shaped first protective member extending across to a boundary between the first of said first recess surface and the first surface of the protrusion of the body,
　Located between the second sealing member and the second filtration membrane, on the surface of said second filtration membrane, from the portion in contact with at least the second sealing member, the said second body the two and a flat-shaped second protection member extending over the recessed surface to a boundary between the second surface of the protrusion of
　the located between said first protective member and the first filtration membrane as an adhesive,
　a second adhesive located between the said and the second protective member second filtration membrane
　membrane separation device comprising a.
[Requested item 12]
　Wherein the first feed passage and the second feed channel of said the first feed channel and the size of said second feed passage of the corresponding size feed spacer There are disposed, membrane separation apparatus according to claim 11.
[Requested item 13]
　A membrane separation apparatus for filtering liquids,
　the first body and, having a first feed channel of the feed liquid is filtered target flows
　a second feed stream of the feed liquid flows is filtered target a second body having a road,
　the first body and the second and two flat-shaped filtration membrane located between the body and
　located between the two flat-shaped filtration membrane and permeable spacer flat shaped
　provided with a,
　the first body has an inner surface facing the said second body, this inside surface, first of said two filtration membranes has a first recessed surface defining said first feed passage between the first filtration membrane located on one of the body side, and a first protrusion surface surrounding the first recess surface ,
　the second body has an inner surface facing the said first body, is the inner surface, a second body side of said two filtration membranes A second recessed surface defining a second said second permeate flow path in the membrane filter is located, and a second protrusion surface surrounding the second recess surface,
　the first a first adhesive disposed between the first filtration membrane and body,
　and a second adhesive located between the second body and the second filtration membrane
　membrane separation device comprising a .
[Requested item 14]
　Wherein the first feed passage and the second feed channel of said the first feed channel and the size of said second feed passage of the corresponding size feed spacer There are disposed, membrane separation apparatus according to claim 13.
[Requested item 15]
　A membrane separation unit for filtering liquid,
　a first supply spacer permeable flat-shaped through which the feed liquid is inside the filtering target,
　the first protection surrounding the said first feed spacer member and,
　the permeability of the second feed spacer in a flat shape through which the feed liquid is an internal filtration target,
　a second protective member surrounding a periphery of the second feed spacer,
　said first feed spacer and wherein a first two of the flat-shaped filtration membrane located between the protective member and the second feed spacer and the second protective member of,
　located between the two flat-shaped filtration membrane the transmission spacer Tairajo
　provided with,
　the a first adhesive located between the first protective member and the first filtration membrane,
　wherein the second protective member second filtration membrane a second adhesive located between the
　membrane separation unit comprising a.
[Requested item 16]
　Wherein a part of the periphery of the transparent spacer, permeate exhaust passage filtered permeate flows are formation,
　the permeate exhaust passage, said second protection of the first protective member and member are formed together extend from a portion of Zorezo Re periphery
　of the peripheral portion of the transparent spacer portion in which the permeate discharge channel is not installed with an adhesive It is closed, membrane separation unit according to claim 15.