Dispenser and valve unit for fluid supply system

Abstract

A dispenser (V) of a fluid supply system, in particular of a hydrogen refueling station, has lines (10-16) for connecting storage containers (B1-B8) to stations (CP, Z1-Z4) and valve units (6, 7) in order to selectively open and close the connection between the storage containers (B1-B8) and the stations (CP, Z1-Z4). The lines (10-16) are arranged in a matrix in the line module (1). The valve units (6, 7) are detachably fastened to the line module (1) in a matrix. The dispenser enables a compact and space-saving arrangement of the valve unit, in addition, the valve unit can be replaced in a simple manner and method. Preferably, each valve unit comprises a main valve, a pre-control valve and a check valve.

Description

Technical Field

[0001] The present invention relates to a dispenser of a fluid supply system, in particular a hydrogen filling station, and a valve unit, in particular for use in a dispenser of a fluid supply system. Background Art

[0002] Fluid supply systems, in particular hydrogen filling facilities and in particular hydrogen filling stations, have one or more high-pressure storage containers in which liquid or compressed gaseous hydrogen is provided for filling containers or for filling motor vehicles or railways. High-pressure storage containers are also referred to herein as storage containers, pressure tanks, reservoirs or storage reservoirs.

[0003] In order to fully fill the vehicle as quickly as possible, hydrogen is extracted from multiple storage containers in sequence. The more the filling of the vehicle progresses, the higher the pressure in the storage container must be. Therefore, the pressure in each storage container is different, and the pressure is usually 350 bar, 500 bar, 700 bar and 1000 bar. However, storage containers with different pressure levels are also feasible. If a pre-control valve is used to open and close the pipeline, the dead time when switching to other storage containers can be minimized. However, because the pre-control valve is usually opened faster than it is closed, a check valve is also required to prevent backflow into a storage container that is no longer used with a lower pressure.

[0004] Fluid supply systems usually include more than one consumer station at which filling takes place. Therefore, a filling station usually has more than one filling column. Therefore, the distribution of the fluid flow from the storage container to the consumer station requires multiple pipes, pilot valves and non-return valves.

[0005] Various pipes, valves and non-return valves are arranged in a so-called "flow plate" or "valve plate". The arrangement has a plurality of connections that must be sealed. The plurality of connections increases the risk of leakage. If a leak exists, the leak is usually difficult to access and therefore difficult to eliminate.

[0006] Replacing valves and non-return valves that are subject to wear also takes time, since they are often difficult to access and the subsequent resealing of the connection points is time-consuming. This results in long downtimes for the facility, ie the fluid supply system, and high maintenance costs.

[0007] The initial installation of a "flow plate" is also time-consuming and requires expertise. This is because the flow plate is usually assembled on site due to its size and weight. Therefore, the initial operating control can also be carried out on site. Typical installation times are well between 5 and 7 days.

[0008] Another disadvantage of the known "flow panels" is that they are relatively large and heavy. They usually require their own cabinet and thus additional space. They can hardly be installed in a common container with other components. However, especially in filling stations the base surface is expensive, so that "flow panels" increase the rental costs or the purchase price of the premises for the facility.

[0009] A "flow plate" for eight storage containers and four filling columns typically has dimensions of about 2m x 2m x 1m and weighs more than 600kg. The flow plate also has about 288 cone and thread connections, all of which must be sealed (CT connection = cone and thread).

[0010] US 8 707 977 B2 discloses a distributor for a fluid supply system, in which smaller containers are filled in cascade from a plurality of high-pressure containers. The distributor comprises a solid body with a receiving hole for a non-return valve and a receiving hole for a pressure sequence valve. A non-return valve and a pressure sequence valve are connected to form a unit via external lines. The non-return valve and the pressure sequence valve can be introduced into the hole of the distributor body as a common cartridge. A sensor line leads from the smaller container to be filled to the pressure sequence valve, which opens or closes depending on the pressure in the smaller container. A separate hole allows refilling of the high-pressure container. The distributor is suitable for filling a single container, but is not suitable for installations with controlled valves for supplying a plurality of consumer stations, for example because it is not possible to control a single valve. Summary of the invention

[0011] The object of the present invention is to achieve a distributor for a fluid supply system, in particular a hydrogen filling station, which eliminates the above-mentioned problems of known flow plates.

[0012] This object is achieved by a dispenser having the features of claim 1 .

[0013] The dispenser according to the invention has pipelines for connecting a storage container to a station and a valve unit for selectively opening and closing the connection between the storage container and the station. The pipelines are arranged in a matrix in a pipeline module, and the valve unit is detachably fastened to the pipeline module in a matrix.

[0014] The use of a piping module in which the valve is placed facilitates the initial installation. The installation time is greatly shortened. According to an embodiment, the installation time is significantly less than 1 day.

[0015] The arrangement of the pipelines and valve units according to the invention allows simple access to all valve units. The valve units can therefore be replaced in a simple manner without having to remove the pipelines or disengage other sealing devices. This minimizes the maintenance time and maintenance costs as well as downtime of the filling station.

[0016] Preferably, all valve units are arranged on the same side of the pipeline module. Therefore, all valve units can be accessed from the same side. If the distributor is arranged in a cabinet, the side can form the front side and thus the accessible side. This also makes maintenance easier and shortens maintenance time.

[0017] Furthermore, the matrix-like arrangement enables the scalability of the dispenser. That is, the same arrangement can be used for using different quantities of storage containers and stations. This simplifies the planning and construction of such a dispenser.

[0018] The station is at least one, preferably a plurality of consumer stations and / or at least one cryogenic pump station. The consumer station is preferably a filling column or other filling device. The cryogenic pump station is used to fill the storage container. According to an embodiment, there is only a consumer station. In another embodiment, there is at least one consumer station, preferably a plurality of consumer stations, and a single cryogenic pump station.

[0019] Due to the matrix-like arrangement, the distributor can also be designed to be more compact and thus lighter.

[0020] Preferably, the pipeline module is composed of at least one solid component, wherein the pipeline is a hole in the at least one solid component. The component is preferably made of metal, in particular steel. As a result, the distributor itself has no pipelines. The connection points and thus possible leakage points can be greatly reduced.

[0021] Pipes in the form of holes in solid components are extremely space-saving. Pipe modules can be designed to be relatively small and correspondingly light.

[0022] A distributor in the embodiment with solid components and holes, which is designed for eight high-pressure storage containers and four filling columns, including valves, weighs approximately 200 kg and requires a mounting surface of approximately 0.5 m×0.5 m×0.2 m. Furthermore, if backfilling via a cryogenic pump is also possible in the distributor, only thirteen more connection points are required.

[0023] In one embodiment, the pipeline module consists of a single solid component. The holes can be arranged relatively close to each other. The pipeline module is designed to be optimally sealed. The pipeline module and thus the distributor are extremely compact.

[0024] In another embodiment, the pipeline module has a plurality of cuboid, elongated components, each of which establishes a connection to a storage container or a station, and a plurality of such components can be joined together to form a common pipeline. This modular variant allows a simple expansion of existing facilities to more storage containers and / or filling columns or a reduction to fewer storage containers and / or filling columns. In addition, the production costs can be optimized when manufacturing the pipeline module, since the components produced can be assembled according to customer requirements.

[0025] In a preferred embodiment, each valve unit comprises a main valve, a pilot valve for controlling the main valve and a non-return valve, which form a common module. The module can be fastened to the pipeline module as a unit and can be detached from the pipeline module.

[0026] Preferably, the valve unit is designed so that the flow path of the fluid through the valve unit from the inlet to the outlet of the valve unit is u-shaped or v-shaped. As a result, the inlet and outlet are arranged on the same side and the valve unit itself is compactly designed. The provision of the inlet and outlet on the same side with a u-shaped, v-shaped or alternative design with a flow path allows the valve unit and thus also the manifold to be very compactly designed. The valve unit can be fastened from the opposite side. Maintenance becomes easier. Preferably, the outlet and the inlet extend approximately parallel to each other.

[0027] The piston of the main valve preferably moves in a direction that is approximately perpendicular to the direction of movement of the piston of the check valve. The pilot valve for pre-controlling the main valve is preferably located in an extension of the check valve. The direction of movement of the piston of the pre-control valve preferably extends parallel to the direction of movement of the piston of the check valve and perpendicular to the piston of the main valve. The three pistons preferably open in a common valve chamber, which is part of the fluid path through the valve unit. Preferably, the output of the main valve, the output of the pre-control valve and the input of the check valve open into the common valve chamber.

[0028] Preferably, at least the main valve and the non-return valve are arranged in a common housing. Preferably, the pilot valve is also integrated in the housing or screwed to the housing. This results in a very compact design of the valve unit. Thus, a plurality of valve units can be arranged at the pipeline module in an extremely space-saving manner.

[0029] In a preferred embodiment, a portion of the lines of the line module are storage container lines, wherein each storage container line connects a storage container to a first partial quantity of a valve unit. In this embodiment, another portion of the lines of the line module are station lines, wherein each station line connects a second partial quantity of a valve unit to a consumer station. This arrangement allows a preferred embodiment in which the first partial quantity and the second partial quantity are not identical, but in which exactly one valve unit of the distributor is present in the first partial quantity and the second partial quantity.

[0030] In a preferred embodiment, the storage container lines extend in a first direction of the matrix and the station lines extend in a second direction of the matrix running perpendicularly to the first direction, wherein the storage container lines extend at a distance from the station lines.

[0031] This arrangement makes it possible to associate the valve unit with a distinct combination of storage unit and station, respectively.

[0032] In a preferred embodiment, there is a first valve line which extends from the storage container line to the valve unit at an angle to the storage container line, and there is a second valve line which extends from the station line to the valve unit at an angle to the station line. In this way, the valve unit can be arranged on the line module. No recess is required in order to introduce the valve unit into the block of the line module. The line module can be relatively narrow and thus easily constructed.

[0033] Preferably, there is exactly one storage container line for each storage container and exactly one station line for each station, wherein the storage container lines and station lines run uninterruptedly and in a straight line in the line module. This in turn reduces the size of the line module and minimizes the connection points to be sealed.

[0034] The stations are preferably consumer stations, in particular filling columns. However, the stations can also be cryogenic pumping stations for filling storage containers. In one embodiment, at least one station is a consumer station and at least one other station is a cryogenic pumping station. The valve unit associated with at least one consumer station differs from the valve unit associated with the cryogenic pumping station at least in its arrangement.

[0035] According to one embodiment, the valve unit associated with the cryogenic pumping station is designed identically to the valve unit already mentioned, wherein the valve unit is arranged in reverse. In other embodiments, however, other types of valve units are used.

[0036] The valve unit according to the present invention has a main valve, a pilot valve and a check valve for controlling the main valve, and the main valve, the pilot valve and the check valve form a common module, which can be installed and removed as a unit. The main valve, the pilot valve and the check valve are arranged relative to each other so that a u-shaped or v-shaped flow path for fluid flow is formed from the inlet to the valve unit to the outlet leaving the valve unit. The valve unit is extremely compact and space-saving. Due to the flow path extending in a u-shaped or v-shaped manner, the valve unit can be used in many ways because the inlet and outlet are on the same side. The valve unit and the alternatives and variants mentioned above can be used in particular, but not only in the distributor according to the present invention described in this article. In particular, especially when the inlet and outlet are arranged on the same side, the flow path can have different shapes. The parallel extension of the flow path in the region of the inlet and outlet is preferred.

[0037] Further embodiments are described in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The preferred embodiments of the present invention are described below based on the accompanying drawings, which are only used for explanation and should not be understood as limiting. The accompanying drawings show:

[0039] Figure 1 A schematic diagram showing a hydrogen refueling station having a dispenser according to the present invention;

[0040] Figure 2 A perspective view showing a distributor according to the invention having a line module and a valve unit in a first embodiment;

[0041] Figure 3 Show according to Figure 2 A portion of a distributor;

[0042] Figure 4 The invention shows a valve unit according to the invention installed. Figure 2 A pipe module for a distributor;

[0043] Figure 5 The base is shown from below without valve unit Figure 4 A three-dimensional view of a piping module;

[0044] Figure 6 Shown from the front Figure 5 A three-dimensional view of a piping module;

[0045] Figure 7 Show according to Figure 6 A perspective view of a piping module with a transparent representation of the upper region of the distributor;

[0046] Figure 8 Show according to Figure 6 A perspective view of a piping module with a transparent representation of the distributor and a representation of only a portion of the holes;

[0047] Fig. 9 The invention shows a valve unit according to the invention installed. Figure 6 Exploded view of the piping module;

[0048] Fig.10 A perspective view showing a valve unit according to the present invention;

[0049] Fig.11 A schematic diagram showing the arrangement of three valves of a valve unit;

[0050] Fig.12 Shows that the Fig.10 A longitudinal section of a valve unit;

[0051] Fig.13 A perspective view showing a piping module according to the present invention in a second embodiment; and

[0052] Fig.14 Shows the basis with some installed valve units Fig.13 Another stereoscopic view of the piping module. DETAILED DESCRIPTION

[0053] exist Figure 1 Schematically shows a filling station. The filling station has a plurality of, here eight, storage containers B1-B8, in which a fluid under high pressure is stored. In the example, the fluid is hydrogen. The high-pressure storage containers B1-B8 have different pressures, wherein two or more storage reservoirs B1-B8 can have the same pressure. The pressure is preferably 350 bar, 500 bar, 700 bar and 1000 bar.

[0054] A first line BL leads from each storage container B1 - B8 to a distributor V, also called a manifold. A cryopumping station CP with cryopumps is connected to the distributor V via a second line CL.

[0055] A plurality of filling columns Z1 - Z4 , in this case four, are connected to the distributor V via a third line ZL.

[0056] The cryogenic pumping station CP and the filling columns Z1 - Z4 are also collectively referred to herein as stations.

[0057] To fill the storage containers B1 - B8 , hydrogen is usually conducted from a tank truck T via a cryogenic pump station CP, a second line CL, a distributor V and a first line BL to the individual storage containers B1 - B8 .

[0058] For filling a vehicle (not shown here), hydrogen is conducted from storage containers B1-B8 via a first line BL, a distributor V and a third line ZL to individual filling columns Z1-Z4. During filling, a change is made from storage containers B1-B8 with low pressure to storage containers B1-B8 with higher pressure, depending on the filling level of the vehicle tank. The change is made by means of a distributor V, which has a pre-controlled valve, which is controlled according to the standard of an electronic control device. The control device is not shown here. Such control devices for valves for filling vehicle tanks at filling stations are known.

[0059] exist Figures 2 to 12 A first embodiment of a dispenser according to the invention is shown in FIG.

[0060] The distributor has a plurality of pipeline module elements 100, which are assembled into a common pipeline module 1. The pipeline module elements 100 are cuboid, elongated and solid components with a plurality of holes. Preferably, the pipeline module elements are made of metal, more preferably of steel. The holes are produced by drilling, hole etching, laser drilling or in other ways and methods.

[0061] A plurality of piping module elements 100 are stacked on top of each other. The first end, in this case the lower end, is formed by the first end beam 2. The second end, in this case the upper end, is formed by the second end beam 3. The piping module elements 100 are screwed together with the first end beam 2 and the second end beam 3. The long connecting bolts 4 and their nuts 40 are Figure 2 and Fig. 9 The pipeline module element 100 has corresponding through holes 17, as shown in Figure 3 and Fig. 9 For this purpose, the second end beam 3 also has a through hole 31, which is Fig. 9 There is a corresponding threaded opening 21 in the first end beam 2. Figure 5 It can be seen in.

[0062] In the example, eight piping module elements 100 are stacked on top of each other. One piping module element 100 is used for each of the eight storage containers B1-B8 of the example. If there are more or fewer storage containers B1-B8, the number of piping module elements 100 is selected accordingly. Due to the modular composition, the same component can be used for different applications.

[0063] A plurality of valve units 6, 7 are provided at each pipeline module element 100. In the example described, there are five valve units. Four of the valve units are used for connection between one of the eight storage containers B1-B8 and four filling columns Z1-Z4. That is, each valve unit in the valve units of the slats is associated with the same storage container B1-B8, but is associated with different filling columns Z1-Z4. It is referred to as the first valve unit 6 or the filling column valve in this article. The fifth valve unit, which is referred to as the second valve unit 7 or the cryogenic pump valve, is used to fill the storage container B1-B8 via the cryogenic pump station CP. If the distributor V is to be used for more than four filling columns, the pipeline module element 100 is correspondingly manufactured to have more holes and a larger length. In the case of less than four filling columns, each hole can be sealed. Alternatively, the pipeline module element 100 can be correspondingly shorter.

[0064] As in Figure 2 and Figure 3 As can be clearly seen in FIG. 1 , all first valve units 6 are oriented identically. The second valve units 7 are oriented differently from the first valve units 6, but are likewise identical. Figure 2 As can be seen in FIG. 1 , this results in a very compact and space-saving packaging on the pipeline module 1 . Nevertheless, the individual first valve units 6 and second valve units 7 are still easily accessible and can be replaced individually. This facilitates maintenance.

[0065] The individual valve units 6, 7 are screwed to the pipeline module element 100 by means of screws 68. The screws 68 are Figure 3 It can be clearly seen in the figure. There are usually four of them. Figure 4 and Fig. 9 The corresponding threaded holes 18 in the piping module element 100 can be seen in FIG.

[0066] The distributor V thus formed can be easily transported. For this purpose, a ring 5 is fastened to the second beam 3, as in Figure 2 and Fig. 9 This simplifies installation and maintenance. It is also advantageous that the dispenser can be completely assembled and tested at the factory. Figure 4 The fastening holes 20 , 30 allow the distributor V to be fastened to a device or a profile.

[0067] Each pipeline module element 100 is constructed identically. It has holes in the longitudinal direction of the pipeline module element 100, which form the storage container pipeline 10. Figure 3 and Figure 7 It can be clearly seen in Figure 7 In the embodiment of the present invention, only some of the pipelines are visible. However, the remaining pipeline module elements 100 are constructed identically.

[0068] The hole can be a through hole or a blind hole. If the hole is a through hole, one end is sealed closed. One or both ends of the storage container pipeline 10 have an expansion 101 so that a sealed connection with one of the first pipelines BL can be achieved. The connection is usually a CT connection.

[0069] Furthermore, each pipeline module element 100 has a transverse hole extending perpendicularly to the storage container pipeline 10 and spaced apart from the storage container pipeline and perpendicularly to the threaded hole 18. The transverse hole extends parallel to the through hole 17. The transverse hole forms part of the pipeline to the station, namely the filling column Z1-Z4 and the cryogenic pump station CP. In the example described, there are four pipelines for the four filling columns Z1-Z4, here referred to as filling column pipelines 15, and there is a pipeline for the cryogenic pump station CP, here referred to as cryogenic pump pipeline 16. The filling column pipelines and cryogenic pump pipelines are connected in Figure 3 , Figure 7 and Figure 8 It can be clearly seen in Figure 7 and Figure 8 Only a part of the pipelines 15, 16 is shown. However, the pipelines extend over all pipeline module elements 100. In addition, only one pipeline 15 is shown in each case. However, three other such pipelines 15 extend parallel thereto, as shown in FIG. Figure 3 and Figure 5 As can be seen from the hole in the figure, the pipelines 15 and 16 extend separately from the storage container pipeline 10. The pipelines do not interpenetrate each other. The storage container pipeline 10 also extends separately and spaced apart from each other. The same applies to the pipelines 15 and 16.

[0070] In addition, Figure 5 As can be seen in FIG, the first end beam 2 also has corresponding holes for the lines 15, 16. The holes of the first end beam 2 preferably have an expansion 201, so that a sealed connection with one of the third lines ZL can be achieved. The connection is usually a CT connection.

[0071] The second end beam 3 preferably does not have such a hole, but rather it seals the corresponding end of the hole of the pipeline 15, 16 of the uppermost pipeline module element 100. For this purpose, in some embodiments, an O-ring is present as a sealing element. In other embodiments, other known sealing elements are used for this purpose.

[0072] The holes for the pipelines 15, 16 in the individual pipeline module elements 100 are sealed relative to one another by means of suitable sealing elements. In some embodiments, O-rings and support rings are used for this purpose, which are inserted into grooves surrounding the pipelines 15, 16. The grooves are Figure 3As can be clearly seen in FIG. On the opposite sides of each piping module element 100 , and thus on the side facing the adjacent piping module element 100 , there are corresponding mirror surfaces. Alternatively, other sealing elements with and without O-rings can also be used.

[0073] In the piping module element 100, perpendicular to the longitudinal direction of the piping module element 100 and perpendicular to the bores for the pipes 15, 16, further bores are present. The further bores are arranged in pairs, wherein the further bores are arranged corresponding to the inlet openings and outlet openings of the valve units 6, 7. Figures 4 to 8 In the embodiment, the further openings are provided with reference numerals 11, 12, 13 and 14 and are referred to here as valve lines. Figures 6 to 8 , only a portion of the inner region of the piping module 100 is shown for reasons of better clarity. Said portion extends in the same manner over the remaining region of the piping module element 100 .

[0074] The first valve line 11 extends from the outer surface of the line module element 100 to one of the storage container lines 10. Figures 6 to 8 The first valve line opens into the storage container line 10. Adjacent thereto, the second valve line 12 also extends from the outer surface of the line module element 100 to one of the filling column lines 15. The second valve line opens into the filling column line 15.

[0075] The third valve line 13 is a counterpart to the second valve line 12. The third valve line extends from the outer surface of the line module element 100 to the cryogenic pump line 16, and the third valve line leads to the cryogenic pump line 16. The fourth valve line 14 is a counterpart to the first valve line 11. The fourth valve line extends from the outer surface of the line module element 100 to one of the storage container lines 10 and leads to the storage container line.

[0076] The first valve line 11 is respectively connected in a sealed manner to the inlet 63 of one of the first valve units 6. The second valve line 12 arranged adjacent thereto is connected to the outlet 64 of the corresponding first valve unit 6. Thus, when the first valve unit 6 is open, hydrogen can flow from the corresponding storage container B1-B8 to the corresponding filling column Z1-Z4. Due to the check valve 62 arranged in the first valve unit 6, backflow is prevented.

[0077] The third valve line 13 is respectively connected to the inlet of one of the second valve units 7 in a sealing manner. The fourth valve line 14 arranged adjacent thereto is connected to the outlet of the corresponding second valve unit 7. Thus, when the second valve unit 7 is opened, hydrogen can flow from the cryogenic pump station CP to the corresponding storage containers B1-B8. Due to the check valve arranged in the second valve unit 7, backflow is prevented.

[0078] Preferably, the line module 1 is provided with a uniform grid of holes serving as valve lines. That is, the third valve line 13 is designed identically to the second valve line 12 and the fourth valve line 14 is designed identically to the first valve line 11. This simplifies production.

[0079] The first valve unit 6 and the second valve unit 7 can be designed differently. However, if the first valve unit and the second valve unit are designed identically, as in the example shown, then the opposite arrangement of the second valve unit 7 is sufficient to interchange the inlet and the outlet. Figure 2 and Figure 3 It can be clearly seen in.

[0080] As already mentioned, the first valve unit 6 and the second valve unit 7 are screwed onto the line module. The seal is ensured by O-rings or other suitable sealing elements, which are preferably arranged in grooves around the valve lines 11, 12, 13, 14. The O-rings are not shown. The grooves are Figure 7 It can be seen in.

[0081] The first valve unit 6 and the second valve unit 7 can be constructed differently. Preferably, the first valve unit and the second valve unit have a pre-controlled switching valve and a check valve. Preferably, each valve unit in the valve unit includes a main valve 60, a pre-control valve 61 and a check valve 62. The pre-control valve 61 is also called a control valve or a pilot valve. Usually, the pre-control valve is a solenoid valve. The pre-control valve controls the self-medium-pre-controlled main valve 60.

[0082] exist Figures 10 to 12 2 shows a preferred embodiment of the first valve unit 6. Preferably, the second valve unit 7 is designed identically.

[0083] The valve unit 6 is characterized in that the main valve 60, the pilot valve 61 and the check valve 62 are fluidically connected via a common valve chamber 65. Fig.11 For this purpose, the output of the main valve 60 , the output of the pilot valve 61 and the input of the non-return valve 62 are open to a common valve chamber 65 .

[0084] exist Fig.126. The main valve 60 is arranged together with the check valve 62 in a valve housing 67. The pilot valve 61 with its armature guide 611, its armature 612 and its nozzle 610 arranged in a fixed position extends into the valve housing 67. The static sealing device of the nozzle 610 relative to the valve housing 67 is provided with the reference numeral 614. The magnet coil housing 615 extending out of the valve housing 67 has a magnet coil for actuating the armature 612. The electrical terminal 617 establishes the connection with the control device.

[0085] An annular pressure chamber 613 surrounds the nozzle 610 of the pilot valve 61 . A control line 66 leads from the pressure chamber 613 to the control chamber 602 of the main valve 60 .

[0086] The main valve 60 has a movable piston 600 which is connected to a cover 601 via a spring 603. A bore 605 connects the tapered projection of the inlet 63 to a control chamber 602. The cover 601 is fixedly held at the valve housing 67. The movable piston 600 is provided with a dynamic seal 604.

[0087] The inlet 63 leads from one side of the cuboid valve housing 67 to the movable piston 600 of the main valve 60 and, in the open position of the piston 600, to the valve chamber 65. In the example described, flow is circulated around the piston 600. For this purpose, the piston 600 has corresponding recesses or ribs on its circumference, which are provided at the bottom of the piston 600. Fig.12 In an alternative embodiment, the piston 600 has a lead-through opening for this purpose.

[0088] The check valve 62 is arranged on the same side of the valve body 67 as the inlet 63. The check valve is located in the outlet 64. The movable piston 620 of the check valve 62 points to the valve chamber 65. The valve body 621 is arranged outward. The valve body has a static sealing device 624. A spring 623 is provided between the piston 620 and the valve body 621. The returning fluid flows through or around the valve body 621 and finally closes the piston 620 of the check valve 62. In the present embodiment, the piston 620 is circulated. Corresponding recesses or ribs are provided in the Fig.12 Not visible in.

[0089] The fluid flowing into the valve chamber 65 via the main valve 60 flows outward through the check valve 62. Therefore, the fluid path from the inlet 63 to the outlet 64 is U-shaped.

[0090] The main valve 60 is self-media-pre-controlled by means of the pilot valve 61. When the main valve 60 is closed and the pilot valve 61 is closed, the connection between the inlet 63, the hole 605 and the control chamber 602 is open. If the pilot valve 61 is opened by means of the magnet coil, the armature 612 is attracted upward and the central channel 616 in the nozzle 610 establishes a connection between the valve chamber 65, the pressure chamber 613 of the pilot valve 61, the control line 66 and the control chamber 602 of the main valve 60. In addition, when the check valve 62 is opened, the connection from the valve chamber 65 to the outlet 64 is open. Therefore, the opening of the pilot valve 61 results in a pressure drop in the control chamber 602 compared to the pressure in the hole 605, thereby opening the main valve 60.

[0091] When the pilot control valve 61 is closed, the connection between the valve chamber 65 and the control chamber 602 is interrupted. The pressure in the bore 605 and the control chamber 602 is the same, and the pressure in the valve chamber 65 is smaller due to the open check valve 62. The piston 600 is closed by the spring 603, that is, the piston 600 is in the Fig.12 Move to the left.

[0092] However, different main valves, pilot valves and non-return valves can also be used in the u-shaped arrangement according to the invention. The example shown here is only a variant, and its valves can be replaced partially or completely by known valves.

[0093] The surface of the valve housing 67 is preferably flat in the region of the inlet 63 and the outlet 64. This facilitates installation on the piping module 1.

[0094] exist Fig.13 and Fig.14 , a second embodiment of a pipeline module 1 according to the invention is shown. It can be used with the same first valve unit 6 and second valve unit 7 as the first embodiment. The holes and lines are also the same. The above applies. In contrast to the first embodiment, the pipeline module 1 consists of a single solid component. The pipeline module is a thick plate, in particular made of metal, for example steel, which is provided with holes in order to enable the above-mentioned lines and fixing possibilities for the valve units 6, 7. The two end beams 2, 3 are not necessary.

[0095] As in Fig.13 As can be seen in FIG. 1 , the filling column pipeline 15 and the cryogenic pump pipeline 16 penetrate the upper end face 120 of the pipeline module 1. The lower end face 130 opposite to the filling column pipeline 15 and the cryogenic pump pipeline 16 penetrate the upper end face 120 of the pipeline module 1. Fig.14 This is to be understood as being exemplary only. The pipeline module 1 can be used in any spatial position, just like the pipeline module according to the first embodiment.

[0096] exist Fig.14In the figure, some valve units 6, 7 are shown in their installed position. In the embodiment described, the pipeline module 1 can also be completely assembled, as in Figure 2 As shown for the first embodiment.

[0097] The distributor according to the invention allows a compact and space-saving arrangement of the valve units, which can moreover be replaced in a simple manner. Preferably, each valve unit comprises a main valve, a pilot valve and a non-return valve.

[0098] Reference numerals list

[0099] 1 Pipeline module

[0100] 10 Storage container piping

[0101] 101 Extension

[0102] 11 First valve pipeline

[0103] 12 Second valve pipeline

[0104] 13 Third valve pipeline

[0105] 14 Fourth valve pipeline

[0106] 15 Filling column tubing

[0107] 16 Cryogenic pump pipeline

[0108] 17 Through hole

[0109] 18 threaded holes

[0110] 100 Pipeline module components

[0111] 120 First end face

[0112] 130 Second end face

[0113] 2 First end beam

[0114] 20 Fastening holes

[0115] 21 Threaded opening

[0116] 201 Extension Department

[0117] 3 Second end beam

[0118] 30 Fastening holes

[0119] 31 Through hole

[0120] 4 Connecting bolts

[0121] 40 Nut

[0122] 5 Rings

[0123] 6 Valve units at consumer stations

[0124] 60 Main valve

[0125] 600 Piston

[0126] 601 Cover

[0127] 602 Control Room

[0128] 603 Spring

[0129] 604 Dynamic sealing device

[0130] 605 holes

[0131] 61 Pre-control valve

[0132] 610 Armature

[0133] 611 Armature guide

[0134] 612 Armature

[0135] 613 Pressure Chamber

[0136] 614 Static sealing device

[0137] 615 magnet coil housing

[0138] 616 Central Passage

[0139] 617 Electrical Terminal

[0140] 62 Check valve

[0141] 620 Piston

[0142] 621 Valve Body

[0143] 623 Spring

[0144] 624 Static sealing device

[0145] 63 Entrance

[0146] 64 Exit

[0147] 65 Valve chamber

[0148] 66 Control line

[0149] 67 valve housing

[0150] 68 Bolt

[0151] 7 Valve unit for cryogenic pump station

[0152] B1 First storage container

[0153] B2 Second storage container

[0154] B3 Third storage container

[0155] B4 Fourth storage container

[0156] B5 Fifth storage container

[0157] B6 Sixth storage container

[0158] B7 Seventh Storage Container

[0159] B8 Eighth Storage Container

[0160] BL first pipeline

[0161] CP Cryogenic Pump Station

[0162] CL Second Line

[0163] T tank truck

[0164] V Splitter

[0165] Z1 First filling column / first consumer station

[0166] Z2 2nd filling column / 2nd consumer station

[0167] Z3 Third filling column / third consumer station

[0168] Z4 4th filling column / 4th consumer station

[0169] ZL Third pipeline

Claims

1. A distributor of a fluid supply system, in particular a hydrogen filling station, the distributor having pipelines (10-16) for connecting storage containers (B1-B8) to stations (CP, Z1-Z4), having a valve unit (6, 7) for selectively opening and closing the connection between the storage container (B1-B8) and the station (CP, Z1-Z4), It is characterized in that The pipelines (10-16) are arranged in a matrix in the pipeline module (1), and The valve units (6, 7) are detachably fastened to the pipeline module (1) in a matrix-like manner.

2. Distributor according to claim 1, wherein the pipe module (1) is composed of at least one solid component, and wherein the pipes (10-16) are holes in the at least one solid component.

3. The distributor according to claim 2, wherein the pipeline module (1) is composed of a single solid component.

4. A distributor according to claim 2, wherein the pipeline module (1) has a plurality of cuboid, elongated components (100), each of which establishes a connection with a storage container (B1-B8) or a station (CP, Z1-Z4), and wherein a plurality of such components can be connected to one another to form a common pipeline (10-16).

5. A distributor according to any one of claims 1 to 4, wherein each valve unit (6, 7) has a main valve (60), a pilot control valve (61) for controlling the main valve (60), and a check valve (62), wherein the main valve, the pilot control valve and the check valve form a common module, which can be fastened to the pipeline module (1) as a unit and can be detached from the pipeline module (1).

6. Dispenser according to claim 5, wherein a flow path of the fluid through the valve unit (6, 7) from the inlet (63) to the outlet (64) of the valve unit (6, 7) is U-shaped.

7. Dispenser according to any one of claims 5 or 6, wherein at least the main valve (60) and the non-return valve (62) are arranged in a common valve housing (67).

8. A distributor according to any one of claims 5 to 7, wherein the valve unit (6, 7) has a valve chamber (65), toward which the output end of the main valve (60), the output end of the pilot valve (61) and the input end of the check valve (62) are open.

9. A distributor according to any one of claims 1 to 8, wherein a part of the pipeline of the pipeline module (1) is a storage container pipeline (10), wherein each storage container pipeline (10) connects a storage container (B1-B8) to a first partial amount of the valve unit (6, 7), and wherein another part of the pipeline of the pipeline module (1) is a station pipeline (15, 16), wherein each station pipeline (15, 16) connects a second partial amount of the valve unit (6, 7) to a station (CP, Z1-Z4), respectively.

10. Dispenser according to claim 9, wherein the first partial amount and the second partial amount are different and wherein exactly one valve unit (6, 7) of the dispenser is present in the first partial amount and in the second partial amount.

11. A dispenser according to any one of claims 9 or 10, wherein the storage container pipeline (10) extends in a first direction of the matrix, and the station pipelines (15, 16) extend in a second direction of the matrix extending perpendicularly to the first direction, wherein the storage container pipeline (10) extends spaced apart from the station pipelines (15, 16).

12. The dispenser according to any one of claims 9 to 11, wherein there is a first valve line (11), which extends from the storage container line (10) to the valve unit (6, 7) at an angle to the storage container line (10), and wherein there is a second valve line (12), which extends from the station line (15, 16) to the valve unit (6, 7) at an angle to the station line (15, 16).

13. A distributor according to any one of claims 9 to 12, wherein there is exactly one storage container line (10) for each storage container (B1-B8) and there is exactly one station line (16, 15) for each station (CP, Z1-Z4), wherein the storage container line (10) and the station line (16, 15) extend in the pipeline module (1) without interruption and in a straight line.

14. A dispenser according to any one of claims 1 to 13, wherein at least one station is a consumer station, in particular a filling column (Z1-Z4), and wherein at least one other station is a cryogenic pumping station (CP) for filling the storage containers (B1-B8), wherein the valve unit (6) associated with at least one of the consumer stations differs from the valve unit (7) associated with the cryogenic pumping station (CP) at least in terms of its setting.

15. A valve unit, in particular for use in a distributor according to any one of claims 1 to 14, wherein the valve unit comprises a main valve (60), a pilot valve (61) for controlling the main valve (60), and a check valve (62), wherein the main valve, the pilot valve and the check valve form a common module, which can be installed and removed as a unit, wherein the main valve (60), the pilot valve (61) and the check valve (62) are arranged relative to each other so that a U-shaped or V-shaped flow path for a fluid to flow through is formed from an inlet (63) into the valve unit (6) to an outlet (64) leaving the valve unit (6).

16. A valve unit, in particular for use in a distributor according to any one of claims 1 to 14, wherein the valve unit comprises a main valve (60), a pilot valve (61) for controlling the main valve (60), and a check valve (62), wherein the main valve, the pilot valve and the check valve form a common module, which can be installed and removed as a unit, wherein the main valve (60), the pilot valve (61) and the check valve (62) are arranged relative to each other so that a flow path for a fluid to flow through is formed from an inlet (63) into the valve unit (6) to an outlet (64) out of the valve unit (6), wherein the inlet (63) and the outlet (64) are arranged on the same side of the module.

Images