description

Krvoaen container

The invention relates to a cryogenic container with an inner container and an outer container and an evacuable intermediate space between the inner container and the outer container, a fluid distribution container for such a cryogenic container and a method for producing a corresponding one

Cryogenic container.

State of the art

Liquefied gases are used in numerous areas of application,

for example in metal processing, in medical technology and electronics, in water treatment and energy generation as well as in the food industry. Today, industrial gases are increasingly being supplied to customers in liquid form and stored on site before they are used any further.

Vacuum-insulated cryogenic containers or low-temperature tanks are used to store or transport such liquid gases or other fluids, with an inner container and an outer container and an intermediate space between the inner container and the outer container that can be evacuated for vacuum insulation (so-called double-walled container).

In order to remove a fluid at a lowest point from a corresponding inner container, this can also be provided with a bulge, as shown, for example, in US Pat. No. 5,165,246 A. A line can be connected at the lowest point of such a bulge.

US 3,122,000 A discloses an arrangement with an outer container and an inner container, with an intermediate space being filled with insulating material. An upper area of ​​the inner container has an opening with a flange, a sealing ring and a cover.

DE 592 298 C shows an insert container which is enclosed by a pressure vessel while forming a narrow space. An auxiliary vessel is arranged below the pressure vessel. Both vessels are enclosed in a housing. At the bottom of the insert container, a pipe socket leads into the auxiliary vessel.

GB 412 814 A shows an arrangement with a first spherical container. A second spherical container is arranged on the first container in such a way that it partially protrudes into it. The containers are surrounded by an insulation layer and connected by cables.

Usually, depending on the number of consumers or filling devices, a large number of lines or lines are required to remove and fill a fluid.

Pipelines provided, the lines from the inner container through the intermediate space and out of the outer container. For this purpose, a connector is provided for each of these lines, via which the respective line is connected to the inner container. For each nozzle, a hole is cut or drilled in the jacket or the bottom of the inner container and a welding edge preparation is carried out.

Such individual nozzles for each line are, however, cost-intensive and complex to manufacture, since the nozzles have to be dimensioned according to predetermined calculation rules and have to have defined distances from one another. An improvement in cryogenic containers is therefore desirable, in particular in order to be able to connect the inner container of a cryogenic container to a large number of lines in a structurally simple manner.

Disclosure of the invention

According to the invention, a cryogenic container, a fluid distribution container for such a cryogenic container and a method for producing a corresponding cryogenic container are provided with the features of the independent patent claims

suggested. Advantageous embodiments of the present invention are

Subject of the subclaims and the following description. Advantages and configurations of the cryogenic container according to the invention and of the

The fluid distribution container according to the invention and the associated method result from the following description in an analogous manner.

The cryogenic container is designed as a double-walled container and thus has an inner container and an outer container and one that can be evacuated

Space between the inner container and the outer container for

Vacuum insulation. An insulating material with low thermal conductivity, for example perlite, can be arranged in the space. In particular, the cryogenic container is provided for transporting or storing a cryogenic fluid, in particular a cryogenic fluid or cryogen.

The cryogenic container has at least one fluid distribution container according to the invention, which has an interior space which extends from a wall of the inner container into the evacuable intermediate space which is at least partially in the

evacuable intermediate space is arranged, and which is in fluid communication with the inner container.

An extension of the interior of the fluid distribution container into the or the arrangement of this interior in the evacuable intermediate space is understood in particular to mean that the fluid distribution container has a bulge extending from the wall of the inner container into the recess otherwise used for vacuum insulation

Forms space. The interior of the fluid distribution container is not in fluid contact with the intermediate space.

The inner container on the one hand and the fluid distribution container on the other hand can be designed in at least two parts and connected to one another, ie the inner container and the fluid distribution container are each designed as separate components, which are connected to one another in an expedient manner, for example cohesively. The inner container and the fluid distribution container themselves can each be designed in one piece or also in several pieces. In particular, the inner container and the fluid distribution container are individual components or individual parts which can be manufactured separately from one another. The inner container and the fluid distribution container are expediently only connected to one another after these two individual parts have been completely manufactured.

The interior of the fluid distribution container is delimited by a wall in which a plurality of openings are formed, each of which is designed for the connection of at least one line or pipeline or is connected to such a line. The plurality of openings in the wall of the fluid distribution container can in particular be set up for connection to corresponding lines in that they have a flange or a differently designed coupling structure, for example a screw thread or the like. In particular, however, there is a fixed connection to the openings, for example in the form of a welded connection.

The fluid distribution container or its wall is expediently manufactured from the same material as the inner container and / or the outer container, for example from stainless steel, austenitic steel and / or carbon steel. The

Openings in the wall of the fluid distribution container are defined in particular by connecting pieces to which corresponding lines are attached. The connecting pieces can in particular be integral with the wall of the

Be formed fluid distribution container. The fluid distribution container has at least two such openings. The openings can each have the same diameter or, in particular, also different diameters, so that

in particular, different lines with different diameters can be connected.

The fluid distribution container or its wall has, within the scope of the present invention, a curved or curved section. Such a curved shape can be used in particular for pressurization of the

Fluid distribution container best possible properties can be achieved, in particular with a small wall thickness with high stability. The fluid distribution container can thus be built in a particularly stable and space-saving manner.

According to the invention, a wall thickness of the wall of the fluid distribution container, in particular in the curved section, is at least at one point less than the wall thickness of the inner container in areas in which there is no fluid distribution container. The mentioned smaller wall thickness, which is present at least at one point on the wall of the fluid distribution container, is, according to the invention, less than 90%, in particular less than 80%, less than 70%

or less than 60% and in particular at the same time more than 10%, more than 20%, more than 30%, more than 40% or more than 50% of the wall thickness of the inner container.

In cases in which different wall thicknesses of the inner container are used, which can be advantageous, for example, for manufacturing reasons and / or to adapt to the forces acting in each case, the values ​​mentioned relate to the lower ones that are mentioned at least at one point on the wall of the fluid distribution container Wall thickness, in particular, to a medium or to a minimum wall thickness of the inner container outside of areas in which a fluid distribution container is located. The "mean wall thickness" can represent a weighted mean or an arithmetic mean, with a weighting for

The mean value is determined over the respective wall surface proportions with certain wall thicknesses. However, it can also be an unweighted average. The wall thickness outside the areas in which there is one

Fluid distribution container is located, the wall thickness in particular can also be in the area that surrounds the attachment point of a corresponding fluid distribution container and thus directly adjoins this.

It goes without saying that the wall of the curved section is interrupted in the area of ​​the openings. Therefore, the above explanations with regard to the smaller wall thickness present at least at one point on the wall of the fluid distribution container relate to an area outside the respective openings and possibly existing connecting pieces that surround the openings. In the field of

There is no wall in the openings that could have a wall thickness, and connecting pieces can locally result in a greater wall thickness.

Due to the small wall thickness present at at least one point on the wall of the fluid distribution container, it is possible to manufacture a corresponding

Cryogenic container made significantly more material-saving. Because only thinner material has to be machined to form the openings, the formation of corresponding openings is technically significantly easier. A greater wall thickness can be used in areas in which no openings are arranged and, for example, a material transition to the wall of the inner container is to be provided. In such a configuration, the wall thicknesses differ advantageously at different points on the wall of the fluid distribution container or the at least one fluid distribution container can have a greater wall thickness in one area in which it is connected to the inner container than in another area. Further details are explained below.

The arched section is in particular dome-shaped and has an apex. The vertex can in particular represent the point with the greatest distance from a wall of the inner container. The vertex can in particular lie on an axis that is perpendicular to a central axis of the

Inner container stands. This axis is also in particular perpendicular to a plane in which the largest cross-sectional area of ​​the curved section lies. The arched section can in particular be designed to be radially symmetrical, with an axis of symmetry defining the radial symmetry running through the vertex and in particular being able to represent that mentioned axis which is perpendicular to the

The central axis of the inner container stands and / or stands perpendicular to the plane in which the largest cross-sectional area of ​​the curved section lies.

A corresponding axis, ie the one defining the radial symmetry

Axis of symmetry and / or the axis perpendicular to the central axis of the

Inner container stands, and / or the axis which is perpendicular to the plane in which the largest cross-sectional area of ​​the curved section lies (these axes can also coincide in the manner explained), can each through the

The apex of the arched section. If, in the context of the following explanations, an "axis which runs through the apex of the curved section" is used, this is understood to mean an axis of this type. It goes without saying that an “axis” in the terminology used here represents a geometric axis and not or not necessarily an axis formed from a material. If an opening is provided at the apex, this axis runs in particular through the center of this opening.

If a “radial symmetry of the curved section” is mentioned above, in particular the openings in the wall of the fluid distribution container, which can also be arranged in the curved section, can be excluded from the radial symmetry. The characterization of the arched section as being radially symmetrical, which takes place here, thus possibly only relates to the wall of the arched section, but not necessarily to the openings possibly formed therein.

In the context of the present invention, the center of at least one of the mentioned multiple openings in the wall of the fluid distribution container in the curved portion is arranged at a position that is different from a position of the

Vertex deviates. In particular, in the case of two or more openings, the centers of two or more than two openings are arranged in this way. In contrast to US Pat. No. 5,165,246 A mentioned at the outset, one or more openings are therefore present in the context of the present invention which are not arranged at the lowest point of a bulge in an inner container. The measures proposed according to the invention relate less to the possibility of residual removal by providing an opening at the lowest point, but primarily to simplified production in the event that several lines are to be connected to a corresponding container. Nevertheless, a further opening can also be formed at the lowest point or at the apex, for example for attaching a measuring line.

In one embodiment of the present invention, the center of at least one of the mentioned multiple openings is arranged between two planes which are perpendicular to the mentioned axis through the vertex and in particular the

Cut the wall of the fluid distribution container in the curved section. However, the planes can also intersect a cylindrical section, if any. In this way, the two levels define an upper and a lower one

Boundary between which the at least one opening can be arranged.

According to a specific embodiment of the present invention, the center of at least one of the mentioned multiple openings is arranged on a line which is a line of intersection between a cutting plane and the wall of the

Fluid distribution container corresponds in the curved section, the cutting plane being perpendicular to the axis through the vertex and the wall of the

Fluid distribution container cuts in particular in the curved section. The line of intersection is thus formed in particular radially symmetrical to the axis.

If centers of openings in the wall of the fluid distribution container are mentioned here, these include in particular the centers of the transitions between the fluid distribution container and the connected lines or of corresponding ones

Understand flanges. In particular, the central axes of corresponding lines or flanges or nozzles can also run through these central points.

The curved section is advantageously in the form of a spherical segment,

in particular hemispherical or dome-shaped or in the form of a spherical dome or spherical cap. This spherical segment-shaped section is expediently in fluid connection with the inner container via its opening via its corresponding open end or its open cross section. The spherical segment-shaped section can be welded to the inner container via this open cross section. The openings in the wall of the fluid distribution container for connecting the lines or their center points can be along the circumference of this

spherical segment-shaped portion be arranged in the manner explained, ie

for example on the line corresponding to the line of intersection between the cutting plane and the wall of the fluid distribution container in the curved section. As explained below, the curved section can also have a dished shape.

In the case of a hemispherical shape, in particular, a minimal wall thickness with the highest possible stability when pressurized can be achieved. If, on the other hand, the arched section is dome-shaped, it can, on the other hand, be arranged in a space-saving manner in the intermediate area and requires less space than a hemispherical section. However, it needs a slightly thicker wall thickness for stability when pressurized. The same applies to a

Dished form as explained below. In all cases, however, the curved section can be formed at least at one point with a wall with a smaller wall thickness than the inner container.

The fluid distribution container defines a fluid volume which is in fluid communication with the inner container and via which a plurality of lines can be connected to the inner container at the same time. In order to bring the fluid distribution container into fluid connection with the inner container, advantageously only one bore has to be made in the inner container, ie the material with the greater wall thickness has to be machined in this way. Since the fluid distribution container has a plurality of openings and thus for connecting a plurality of

Lines is provided, so only one hole in the inner container is necessary to connect the inner container to a variety of different lines. For

To connect the individual lines, only the material with the lower material thickness has to be processed.

In contrast to this, in a conventional cryogen container, as mentioned, corresponding inner containers are mostly formed in one piece and a separate hole is drilled in the jacket of the corresponding inner container for each line that is to be connected to the inner container. Conventionally, inner containers thus have a large number of different bores at the most varied of locations, to each of which a line is connected. By contrast, the present invention makes it possible to dispense with connecting the inner container directly to corresponding lines. Rather, at least some lines can be connected to the inner container via one or more fluid distribution containers. Of course, this does not exclude

By contrast, the present invention provides a fluid distribution container

advantageously provided as a separate component via which a plurality of different lines can be connected to the inner container and expediently only one bore is required for these different lines. At each bore in the inner container several can thus simultaneously

Lines connected to the corresponding with this hole

Fluid distribution container can be connected. This considerably reduces the design and manufacturing outlay for the cryogenic container, since it is not necessary to produce a large number of different bores at different points in the inner container, but rather several lines can be connected to the inner container at the same time at a single bore. It is therefore not necessary to provide a separate individual nozzle for each line and to connect it to the inner container. Only the fluid distribution container is connected to the inner container. This enables a central arrangement of several lines and an inexpensive and inexpensive option for connecting several lines to the inner container. Compared to conventional cryogenic containers, material savings,

Manufacturing effort and thus a cost saving can be achieved. A particular advantage results from the use of a smaller wall thickness for the

Fluid distribution container as previously discussed.

The two-piece configuration of the inner container and the fluid distribution container made according to a particularly preferred embodiment of the invention makes it possible to produce the cryogenic container or its inner and outer container on the one hand and the fluid distribution container (s) on the other hand, independently of one another and in particular with different ones

Manufacture wall thicknesses. For the production of a cryogenic container, appropriate fluid distribution containers can expediently be provided and connected to the inner container in the course of the production process. It is also made possible to retrofit cryogenic containers in a structurally simple manner.

Advantageously, a line leading out of the outer container is connected to one or more of the openings, for example in each case by means of a flange. Such lines are provided in particular for removing a fluid stored in the inner container and / or for filling the inner container with a fluid. The lines can be connected to a valve, in particular a safety valve, for example. Due to the fluid connection to the inner container, the fluid distributor fills with part of the fluid in the inner container and this can, for example, from there by means of the

Openings in the wall of the fluid distribution container connected (n) line (s) are removed. For example, when filling via the connected line (s), the fluid first flows into the fluid distribution container and from there into the inner container via the fluid connection or the opening in the wall of the inner container. The line can be designed as a measuring line in which sensors are expediently arranged, for example in order to measure a pressure, a temperature, etc. of the fluid in the cryogen container.

According to the invention, the interior of the at least one fluid container extends from an opening in the wall of the inner container into the intermediate space.

The at least one fluid container is preferably connected to the inner container at the edge of this opening, for example welded to it. The interior is in fluid connection with the inner container via this opening.

An opening of the inner container to the fluid distribution container advantageously corresponds in its diameter to a diameter of the adjoining one

Fluid distribution container. In other words, in such an embodiment, the inner container merges into the fluid distribution container without a constriction or constriction being provided at the transition point. In this way, in particular, dead spaces that could form in a flow-calmed area behind a corresponding constriction can be avoided. This can prevent the negative effects typical of such dead spaces, such as segregation or gas accumulation, from occurring.

In another advantageous embodiment, the opening of the inner container to the fluid distribution container can, however, also have a diameter which is smaller than the adjoining diameter of the fluid distribution container. In other words, in this embodiment, at the connection or transition point between the inner container and the fluid distributor container, a

Cross-section reduction or constriction can be provided. This can

be designed in particular in the form of a radially inwardly extending collar or web surrounding the opening. The collar or web can be formed in one piece with the inner container or the fluid distribution container or can be provided in addition. Such a tapering of the

Diameter can be ensured, for example, that the

Fluid distribution container always remains filled with liquid, even if the

Liquid level in the inner container, for example during transport,

Is subject to movements. In other words, this can also result in

Sloshing movements of the liquid in the inner container during transport ensure that the fluid distribution container remains filled with liquid.

As mentioned, the at least one fluid distribution container is advantageously welded to the inner container or to the opening in its wall. A gas-tight connection between the fluid distribution container and the inner container can thus expediently be achieved. In particular, it is therefore not necessary to cut or drill a separate hole in the casing or the bottom of the inner container for each line and to prepare a weld edge in each case. For the multitude of lines which are connected to the fluid distribution container, only one hole in the jacket or the bottom of the inner container and a welding edge preparation are expediently required.

The at least one fluid distribution container is preferably completely in the

arranged evacuable space between the inner container and the outer container. Thus, the fluid distribution container is arranged in a space-saving manner in the cryogenic container.

According to a particularly advantageous embodiment of the present invention, the at least one fluid distribution container is connected to the inner container at the curved section, that is to say the curved section directly adjoins the inner container. It can be welded to the inner container via the curved section. In a particularly advantageous manner, the fluid distribution container can thus be designed as, for example, a hemispherical or dome-shaped separate component which can be connected to the inner container via its open cross-section, in particular welded to the inner container. Since the wall of the fluid distribution container has a smaller wall thickness than the inner container at least at one point,

Fluid distribution container be designed with a greater wall thickness or a wall thickness that corresponds to the wall thickness of the inner container.

In another embodiment, the at least one fluid distribution container has a cylindrical section which is connected to the curved section. For the reasons explained, this can also be designed with a greater wall thickness than the curved area, at least in the connection area. However, it can also have the aforementioned smaller wall thickness in sections in order to enable the advantageous attachment of lines here. The fluid connection of the fluid distribution container to the inner container is expediently established via this cylindrical section. The cylindrical section is preferably welded to the inner container.

The cylindrical section can expediently adjoin the curved section directly. The cylindrical and the curved section can be designed in one piece or the cylindrical section can be suitably connected to the curved section, for example via a welded connection. There may be between the arched section and the

cylindrical section in particular but also further appropriately shaped sections are located.

Advantageously, the curved section, in particular dome-shaped, with a curvature radius n is followed by a rim section with a corner radius r 2 , with n> r 2, to which the cylindrical section connects. Dimensions, in particular wall thicknesses and radii of curvature, can be selected in accordance with standards or other specifications, for example in accordance with the standard DIN EN 13445-3: 2016-12 ("Unfired pressure vessels - Part 3: Construction"), in accordance with the standard DIN EN 12285-1 : 2003-07 ("Factory-made steel tanks - Part 1: Horizontal cylindrical single- and double-walled tanks for the underground storage of flammable and non-flammable water-polluting liquids") or according to the standard DIN EN 12285-2: 2005-05 ("Factory-made tanks from Steel - Part 2: Horizontal cylindrical single and double-walled tanks for above-ground storage of flammable and non-flammable water-polluting liquids ").

In particular, the fluid distribution container can have a section which is shaped as a so-called dished bottom or arched bottom or has a dished shape. Dimensions of this section shaped as a dished bottom or basket arch bottom, for example outer bottom diameter, inner bottom diameter, curvature radius, corner radius, cylindrical rim height, curvature height, total inner bottom height and / or wall thickness, can for example in accordance with the standard DIN 28013: 2012-06 ("Arched bottoms - Basket arch shape ") or DIN 2801 1: 2012-06 (" Arched floors - dished shape ") can be selected.

The cryogenic container advantageously has two fluid distribution containers. A first fluid distribution container thereof is preferably arranged at a first end of the inner container, in particular at an upper or a front end. A second fluid distribution container is preferably at one of the first end

arranged opposite second end of the inner container, in particular at a lower or rear end. The first fluid distribution container can

be provided in particular for lines for filling and / or for fluid removal from above in the case of an upright stored cryogenic container or from the front in the case of a horizontally stored cryogenic container. The second fluid distribution container can be used in particular for lines for filling and / or for fluid removal from below

an upright cryogen container or from the rear in the case of a horizontally stored cryogen container.

In this embodiment, the cryogenic container or its inner container can in particular have a cylindrical section, at least one end (the mentioned first and / or second end) of the cylindrical section being followed by a curved, for example spherical segment-shaped or dished-shaped section. The at least one curved section of the cryogen container or its inner container has a central opening to which a

Fluid distribution container of the type explained above and is attached in the manner explained above. The axis through the apex of the curved section of the fluid distribution container corresponds in particular to a longitudinal axis of the cylindrical section of the inner container.

The wall of the fluid distribution container preferably has three openings, more preferably four openings for connecting one line in each case. This

Openings or connecting pieces can in particular be arranged at least partially equidistant from one another in the context of the arrangement explained above. Their center points can, for example, be equidistant on the common line that is the line of intersection between the cutting plane and the wall of the

Fluid distribution container in the curved portion corresponds to be arranged.

For example, two adjacent openings can enclose an angle between 30 ° and 90 °, in particular an angle between 45 ° and 60 °, in particular an angle of 50 ° or at least substantially 50 °, the angles mentioned being in the cutting plane mentioned. An "at least partially" equidistant arrangement is present in particular when three or more of the openings are arranged alternately at the same distance from one another, but a greater distance is provided elsewhere. This results, for example, from an equidistant grouping of corresponding openings on one side.

The cryogenic container is preferably designed as a pressure container and for this purpose

set up to store the fluid with a pressure of up to 40 bar.

The cryogenic pressure vessel is expediently set up for storing liquid gases, for example liquid nitrogen (LIN), liquid argon (LAR),

Liquid oxygen (LOX), liquid carbon dioxide (LC0 2 ), liquid hydrogen (LH 2 ), liquefied natural gas (LNG) or liquid laughing gas (LN 2 0).

The method proposed according to the invention is particularly characterized in that initially an inner container with one or more openings for connecting one or one fluid distribution container is provided, and that one or more openings are then connected to the one or more openings

Fluid distribution container is attached, wherein the inner container is processed before the connection of the one or each one fluid distribution container, in particular by cold stretching, in order to improve its mechanical properties, in particular in order to increase the strength of the inner container in this way. The subsequent attachment of the fluid distribution container (s) can improve production and, in particular, processing by cold stretching or do not require multiple line openings with high production costs in one

appropriately manufactured and possibly hardened containers are formed.

Further advantages and refinements of the invention emerge from

Description and the accompanying drawing.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the respectively specified combination, but also in other combinations or alone, without departing from the scope of the present invention.

The invention is shown schematically in the drawing using an exemplary embodiment and is described in detail below with reference to the drawing.

Figure description

FIG. 1 shows schematically in its sub-figures a preferred embodiment of a fluid distribution container according to the invention.

FIG. 2 shows schematically in its sub-figures a preferred embodiment of a fluid distribution container according to the invention.

FIG. 3 shows, in its sub-figures, schematically preferred configurations of cryogenic containers with preferred configurations of fluid distribution containers according to the invention.

In Figure 1 is a preferred embodiment of an inventive

Fluid distribution container shown schematically and denoted by 100. Part 1 a shows the fluid distribution container 100 in a schematic front view, part 1 b in a schematic and further simplified cross-sectional view along the line or axis AA shown in part 1 a. Partial figure 1c shows a schematic plan view of the fluid distribution container 100. Identical reference symbols in the figures denote identical or structurally identical elements.

The fluid distribution container 100 has an interior space 120 which is delimited by means of a wall 121. Furthermore, the fluid distribution container 100 has a curved section 101 and a curved section 101

subsequent cylindrical section 102. The bulged section 101 is hemispherical in this example. The following explanations relate to a hemispherical curved section 101, but also apply in the same way to a differently designed curved section 101. The cylindrical section 102 can also be omitted, so that the fluid distribution container 100 can only have the curved section 101.

In the curved section 101, the fluid distribution container 100 has in its

Wall 121 has three openings 1 1 1, 1 12, 1 13, which in the example shown lie on a section plane of the hemisphere with a plane E or a corresponding section line, the section plane being perpendicular to the section axis AA and the section axis AA through a Vertex S of the hemispherical portion 101 runs. The cutting axis AA in particular also represents an axis of symmetry of the curved section 101, to which the curved section 101, possibly with the exception of the openings 1 1 1, 1 12, 1 13, is designed to be radially symmetrical. The openings 1 1 1 and 1 12 and the openings 1 12 and 1 13 or axes, which each run through their center points M, each enclose an angle a which is 50 ° in the example shown.

In the context of the embodiment of the present invention illustrated here, the center points M of the openings 1 1 1, 1 12, 1 13 in the wall 121 of the

Fluid distribution container 100 arranged on a common line which is a line of intersection between a cutting plane E and the wall 121 of the

Fluid distribution container in the curved portion 101 corresponds, wherein the

Section plane E is perpendicular to the mentioned axis AA through the vertex S and the wall 121 of the fluid distribution container 100 in the curved

Section 101 intersects. The line of intersection is thus formed in particular radially symmetrical to the axis AA. As mentioned, within the scope of the invention, however, a different arrangement can also be provided in the curved section 101.

The fluid distribution container 100 is adapted to be connected to and brought into fluid communication with an inner container of a cryogenic container.

In particular, for this purpose, one end 105 of the curved section 101 or else of the cylindrical section 102 can be connected to a wall of the inner container and thus welded to the inner container. The diameter in the cylindrical section 102 is in particular constant and expediently corresponds to the diameter at the end of the curved section 101.

The openings 1 1 1, 1 12, 1 13 in the wall 121 are in particular through

Connection piece is set up in a defined manner to be connected in each case to a line or pipeline, for example for removing a fluid stored in the inner container and / or for filling the inner container with a fluid.

In particular, the end 105 of the curved section 101 or of the

cylindrical portion 102 can be connected to an opening in the wall of the inner container in order to establish a direct fluid connection between the interior space 120 and the inner container. Alternatively or additionally, a line can also be connected to one of the openings 1 1 1, 1 12, 1 13, which line is also connected to the inner container in order to establish an indirect fluid connection between the interior space 120 and the inner container.

Analogously to FIG. 1, FIG. 2 shows a preferred embodiment of a

Fluid distribution container 200 according to the invention. The fluid distribution container 200 is shown in partial Figure 2a in a schematic front view, in partial Figure 2b in a schematic cross-sectional view along the line BB shown in Figure 2a and in partial Figure 2c in a schematic top view.

The fluid distribution container 200 has an interior space 220 delimited by a

Wall 221 on and a curved, dome-shaped section 201, an adjoining rim section 202 and an adjoining cylindrical section 203.

In the cylindrical section 203, the fluid distribution container 200 has three openings 21 1, 212, 213 in its wall 221, the openings 21 1 and 212 and the openings 212 and 213 each enclosing an angle β which is, for example, 50 °.

Analogously to the openings 1 1 1, 1 12, 1 13, the openings 21 1, 212, 213 are also set up for this purpose, each with a line or pipeline, for example for removing one in an inner container of a cryogen container, in particular one

Pressure vessel, which is referred to below, to which the

However, the following explanations are not limited to the fluid stored and / or to be connected to the fluid for filling the inner container.

The fluid distribution container 200 is further designed to be connected in a suitable manner to such an inner container and to be brought into fluid communication. In particular, for this purpose, one end 205 of the cylindrical section 203 can be connected to an opening in a wall of the inner container and thus welded to the inner container. Alternatively or additionally, a line connected to the inner container can be connected to one of the openings 1 1 1, 1 12, 1 13.

In FIG. 3, preferred embodiments of cryogen containers according to the invention are shown schematically in sub-figures 3a and 3b and are denoted by 300a and 300b, respectively.

The cryogenic containers 300a and 300b are each vacuum-insulated

Double-walled container and each have an inner container 301, an outer container 302 and an evacuable space 303 between the

inner container 301 and outer container 302. In the space 303, for example, an insulating material with low thermal conductivity can be arranged, for example perlite.

The cryogenic containers 300a and 300b are each provided for the storage and transport of liquefied gases 304, for example. Liquid gas 304, for example liquid nitrogen (LIN), can be stored in the inner container 301 under a pressure of up to 40 bar. To fill the inner container 301 with the liquid gas 304 or to remove the liquid gas 304 from the inner container 301, the cryogenic containers 300a and 300b each have two preferred embodiments of a fluid distribution container according to the invention.

The cryogen container 300a shown in FIG. 3 a has two fluid distribution containers 100, as shown, for example, in FIG. The cryogen container 300b shown in FIG. 3b has two fluid distribution containers 200, as shown, for example, in FIG.

In the present example of FIG. 3 a, a first fluid distribution container 100 is arranged at an upper end of the inner container 301 and a second one

Fluid distribution container 100 at a lower end of the inner container 301. The fluid distribution containers 200 each stand with the inner container 301 in

Fluid connection. The fluid distribution containers 100 each extend from an opening 305 in a wall of the inner container 301 into the

Gap 303 and are each arranged completely within the gap 303. For this purpose, the fluid distribution containers 100 are especially welded to the inner container 301, especially at the respective end 105 of the cylindrical section 103 or directly at the end of the curved, hemispherical section 101. The diameter of the openings 305 correspond to the respective diameter of the end 105 of the cylindrical section 102 or the arched, hemispherical section 101. The wall of the fluid distribution container 100 or its hemispherical section 101 has a smaller wall thickness than the inner container 301 at least at one point.

A line 31 1, 312, 313 is connected to each of the openings 1 1, 1 12, 1 13 of the fluid distribution container 100, each of which passes through the intermediate space 303 from the

outer container 302 leads out. The inner container 301 can be filled with the liquid gas 304 or the liquid gas 304 can be removed via these lines 31 1, 312, 313. A valve 321, 322, 323 is expediently provided in each of the lines 31 1, 312, 313.

In a corresponding manner, in the example of FIG. 3b, a first fluid distribution container 200 is arranged at the upper end of the inner container 301 and a second fluid distribution container 200 is arranged at the lower end of the inner container 301, the fluid distribution containers 200 each being in fluid connection with the inner container 301. The fluid distribution containers 200 are also expediently welded to the inner container 301, in particular at the respective end 205 of the

cylindrical section 203. Expediently, the

The diameter of the openings 305 corresponds to the respective diameter of the end 205 of the cylindrical section 203. With regard to the wall thicknesses, explicit reference is made to the above explanations.

Lines 31 1, 312, 313 are also connected to the openings 21 1, 212, 213 of the fluid distribution container 200 and each lead out of the outer container 302 through the intermediate space 303 and for filling the inner container 301 with liquid gas 304 or for removing the Liquid gas 304 from the inner container 301 are provided.

It goes without saying that, for example, both a fluid distribution container 100 according to FIG. 1 and a fluid distribution container 200 according to FIG. 2 can also be used for the cryogen container. For example, a fluid distribution container 100 according to FIG. 1 can be arranged at the upper end of the inner container 301 and a fluid distribution container 200 according to FIG. 2 or vice versa at the lower end of the inner container 301.

Reference list

100 fluid distribution containers

101 domed section, hemispherical section

102 cylindrical section

105 end of the cylindrical section 102

1 1 1 connection piece

1 12 connecting pieces

1 13 connection piece

120 Interior of the fluid distribution container 100

121 Wall of the fluid distribution container 100

200 fluid distribution containers

201 arched section, dome-shaped section

202 brim section

203 cylindrical section

205 End of the cylindrical section 203

21 1 connection piece

212 connection piece

213 connection piece

220 Interior of the fluid distribution container 100

221 Wall of the fluid distribution container 100

300a cryogen container

300b cryogen container

301 inner container

302 outer container

303 evacuable space

305 Opening in the wall of the inner container 301

31 1 line

312 line

313 line

321 valve

322 valve

323 valve

Claims

1. Cryogenic container (300a, 300b) with an inner container (301), with a

outer container (302), with an evacuable intermediate space (303) between the inner container (301) and the outer container (302), and with at least one fluid distribution container (100, 200) which has an interior (120, 220) which extends from a wall of the inner container (301) into the

Gap (303) extends, at least partially within the

Intermediate space (303) is arranged and is in fluid connection with the inner container (301), characterized in that the interior (120, 220) is delimited by means of a wall (121, 221) which has several openings (111, 112, 113, 211, 212, 213 ) which are set up for the connection of at least one line (311,312,313) or are each connected to such a line (311, 312,313), and that the wall (121, 221) has a curved section (101, 201), one The wall thickness of the wall (121, 221) is less than 90% of a wall thickness of the inner container (301) at at least one point.

2. Cryogenic container (300a, 300b) according to claim 1, wherein a center point (M)

at least one of the plurality of openings (111, 112, 113, 211, 212, 213) is arranged at a position deviating from a position of an apex (S) of the bulged portion (101, 201).

3. Cryogenic container (300a, 300b) according to claim 1, in which a center point (M)

at least one of the plurality of openings (111,112,113,211,212,213) is arranged between two planes which is perpendicular to an axis (AA) through the vertex (S) and the wall (121, 221) in the curved

Section (101, 201) intersects, or is arranged on a line which is a line of intersection between a cutting plane (E) and the wall (121, 221), the cutting plane (E) perpendicular to an axis (AA) through the

Vertex (S) is and the wall (121, 221) in the arched

Section (101, 201) intersects.

4. Cryogenic container (300a, 300b) according to one of the preceding claims, wherein at least one of the plurality of openings (111, 112, 113, 211, 212, 213) at least

a line (31 1, 312, 313) leading out of the outer container (302) is connected.

5. Cryogenic container (300a, 300b) according to one of the preceding claims, wherein the at least one fluid distribution container (100, 200) is welded to the inner container (301).

6. cryogenic container (300a, 300b) according to any one of the preceding claims, wherein the at least one fluid distribution container (100, 200) completely in the

evacuable intermediate space (303) is arranged between the inner container (301) and the outer container (302).

7. cryogen container (300a, 300b) according to one of the preceding claims, wherein the curved section (101, 201) is hemispherical (101) or dome-shaped (201) or has a dished shape.

8. Cryogenic container (300a) according to one of the preceding claims, wherein the at least one fluid distribution container (100) is connected to the curved section (101) with the inner container (301) or the at least one

Fluid distribution container (100, 200) has a cylindrical section (102, 203) which is connected to the curved section (101, 201).

9. cryogenic container (300a, 300b) according to claim 8, wherein the at least one

Fluid distribution container (100, 200) has a greater wall thickness in an area in which it is connected to the inner container (301) than in another area.

10. Cryogenic container (300a, 300b) according to one of the preceding claims with two fluid distribution containers (100, 200), wherein a first fluid distribution container (100, 200) is arranged at a first end of the inner container (301) and wherein a second fluid distribution container (100 , 200) is arranged at a second end of the inner container (301) opposite the first end.

1 1. Cryogenic container (300a, 300b) according to one of the preceding claims, wherein the wall (120, 220) of the fluid distribution container (100, 200) has three openings (1 1 1, 1 12, 1 13, 21 1, 212, 213) , in particular four openings, for connecting one line (31 1, 312, 313) each.

12. Cryogenic container (300a, 300b) according to one of the preceding claims, set up to store the fluid (304) at a pressure of up to 40 bar.

13. Fluid distribution container (100, 200) for a cryogen container (300a, 300b) with an inner container (301) and an outer container (302) and a

evacuable intermediate space (303) between the inner container (301) and the outer container (302), wherein the fluid distribution container (100, 200) has an interior (120, 220) and is adapted to with the inner

Container (301) to be brought into fluid communication and to be arranged on the inner container (301) in such a way that the interior space (120, 220) extends from a wall of the inner container (301) into the intermediate space (303) and at least is partially arranged within the intermediate space (303), characterized in that the inner space (120, 220) is delimited by means of a wall (121, 221) which has several openings (1 1 1, 1 12, 1 13, 21 1,

212, 213), each of which is set up to connect at least one line (31 1, 312, 313) or is connected to such a line (31 1, 312, 313), and that the wall (121, 221) has a arched section

(101, 201), a wall thickness of the wall (121, 221) being less than 90% of a wall thickness of the inner container (301) at at least one point.

14. The fluid distribution container (100, 200) of claim 13, wherein the domed

Section (101, 201) is hemispherical (101) or dome-shaped (201) or has a dished shape.

15. A method for producing a cryogenic container (300a, 300b) according to any one of claims 1 to 12, characterized in that first an inner container (301) with one or more openings for connecting one or one fluid distribution container (100, 200) is provided , and that

one or a respective fluid distribution container (100, 200) is then attached to the one or more openings.