Hydrogen production system purification module

Abstract

The utility model discloses a purification module of a hydrogen production system, and belongs to the technical field of hydrogen production. The hydrogen production system purification module comprises: a purification module housing; a partition plate is arranged in an inner cavity of the purification module shell and divides the inner cavity into a purification area and an electric control area; a first purifier and a second purifier are arranged in the purification area in parallel at an interval; purification pipelines of the first purifier and the second purifier and a control valve are arranged between the first purifier and the second purifier; the electric control area is provided with a power supply and a controller electrically connected with the power supply, and the controller is electrically connected with the first purifier, the second purifier and the control valve. According to the purification module of the hydrogen production system, the purification pipeline is powered and controlled by adopting the independent power supply and the controller, so that the purification module of the hydrogen production system can form an independent working system, and a normalized module can be manufactured; the partition plate divides the interior of the purification module shell into the purification area and the electric control area for layout, water and electricity isolation is achieved, maintenance is convenient, and safety is improved.

Description

Technical Field

[0001] This application belongs to the field of hydrogen production technology, and in particular relates to a purification module for a hydrogen production system. Background Technology

[0002] Hydrogen purification units play an important role in industrial production and laboratory applications. Their performance and structure directly affect the hydrogen purification effect and the reliability of the system.

[0003] In existing hydrogen production systems, the purification unit is typically powered and controlled by the main power supply and controller of the hydrogen production system. This centralized power supply and control method requires separate design and piping connections for each hydrogen production system based on its different application scenarios, which is not suitable for the trend of modularization and standardization. Utility Model Content

[0004] This application aims to improve the technical problems of limited power supply and control of purification units in the prior art.

[0005] This application provides a purification module for a hydrogen production system, including:

[0006] Purification module housing;

[0007] The inner cavity of the purification module housing is provided with a partition plate, which separates the inner cavity into a purification zone and an electronic control zone;

[0008] The purification zone is provided with a first purifier and a second purifier arranged in parallel at intervals, and the purification pipelines and control valves of the first purifier and the second purifier are located between the first purifier and the second purifier.

[0009] The electrical control area is equipped with a power supply and a controller electrically connected to the power supply. The controller is electrically connected to the first purifier, the second purifier, and the control valve to control and supply power to the first purifier, the second purifier, and the control valve.

[0010] According to one embodiment of this application, the purification pipeline is provided with a fluid switching assembly, which has a first gas port and a second gas port; the first gas port is connected to a first flow branch, and the second gas port is connected to a second flow branch, the first flow branch and the second flow branch being connected in parallel to a hydrogen passage; a third connecting branch is connected between the first flow branch and the second flow branch, and a throttling device is connected to the third connecting branch; the fluid switching assembly is configured to allow fluid to flow from the first gas port to the second gas port, and the second gas port is connected to an exhaust gas passage; or, to allow fluid to flow from the second gas port to the first gas port, and the first gas port is connected to an exhaust gas passage; the first purifier is connected to the first flow branch, and the second purifier is connected to the second flow branch;

[0011] The purification pipeline is also equipped with an unloading valve, a first pressure sensor, and a first solenoid valve, which are sequentially arranged on the hydrogen passage; wherein, the unloading valve is configured to open when the pressure in the hydrogen passage reaches a preset pressure.

[0012] According to one embodiment of this application, the hydrogen passage is further provided with a first one-way valve, which is located downstream of the first solenoid valve; and / or, the first solenoid valve is a normally closed solenoid valve.

[0013] According to one embodiment of this application, there is an emission passage between the hydrogen passage and the exhaust gas passage, and a second solenoid valve is connected to the emission passage; the second solenoid valve is a normally open solenoid valve.

[0014] According to one embodiment of this application, the front panel of the purification module housing is provided with a fluid quick interface, an electrical interface and a force application part, wherein the force application part is located between the fluid quick interface and the electrical interface;

[0015] And / or, the purification module housing includes: an upper cover and a bottom frame; the upper cover is detachably connected to the bottom frame and together with the bottom frame forms the inner cavity isolated from the external environment.

[0016] According to one embodiment of this application, the throttling device includes a throttling tube or a throttling orifice plate.

[0017] According to one embodiment of this application, the first flow branch is further provided with a second pressure sensor and a fourth check valve, the second pressure sensor and the fourth check valve being sequentially located downstream of the first purifier; the second flow branch is further provided with a third pressure sensor and a fifth check valve, the fifth check valve and the second flow branch being sequentially located downstream of the second purifier.

[0018] According to one embodiment of this application, the purification zone is further provided with an H-shaped scaffold;

[0019] The second pressure sensor and the fourth one-way valve are located on the first layer of the H-shaped bracket; the third pressure sensor and the fifth one-way valve are located on the second layer of the H-shaped bracket; the first layer and the second layer are spaced apart in the vertical direction.

[0020] According to one embodiment of this application, the fluid switching assembly includes a first switching path and a second switching path that are interconnected; a third solenoid valve and a fourth solenoid valve are provided on the first switching path; and a fifth solenoid valve and a sixth solenoid valve are provided on the second switching path.

[0021] The first flow branch is connected between the third solenoid valve and the fourth solenoid valve, and the second flow branch is connected between the fifth solenoid valve and the sixth solenoid valve;

[0022] The third, fourth, fifth, and sixth solenoid valves are configured such that the third and sixth solenoid valves have a first open / closed state, and the fourth and fifth solenoid valves have a second open / closed state, wherein the first open / closed state is the opposite of the second open / closed state.

[0023] According to one embodiment of this application, the purification module housing is rectangular, and the partition plate is arranged front and back along the vertical direction so that the purification area and the electronic control area are arranged side to side.

[0024] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0025] The hydrogen production system purification module of this application uses an independent power supply and controller to power and control the purification pipeline, so that the hydrogen production system purification module can form an independent working system, can be manufactured into standardized modules, and can be replaced as a whole and matched with other modules. In addition, the partition divides the interior of the purification module housing into a purification area and an electrical control area. The electrical control area is separated from the pipeline, realizing water and electricity isolation, facilitating maintenance and improving safety.

[0026] This application uses an unloading valve instead of a back pressure valve to complete the function of system back pressure. Once the unloading valve is set, the user does not need to make any adjustments, which simplifies the user's operation. At the same time, the unloading valve is smaller in size than the back pressure valve, which means that this application greatly reduces the space requirements, allowing the size of the hydrogen production system purification module to be designed to be smaller, making it easier to install and maintain in compact applications.

[0027] The first purifier and the second purifier are connected by a throttling tube or orifice plate, which has a stable structure, avoids misoperation of the purification module during transportation or use, has a stable throttling effect, and is low in cost.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of the structure of a purification module of a hydrogen production system provided in one embodiment of this application;

[0031] Figure 2 This is an exploded view of the purification module of a hydrogen production system provided in one embodiment of this application;

[0032] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0033] Figure 4 This is a top view of a partial structure of the purification module of a hydrogen production system provided in an embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the purification pipeline of the purification module of the hydrogen production system provided in one embodiment of this application;

[0035] Figure 6 yes Figure 5 A schematic diagram of the structure of a hydrogen production system purification module in which fluid flows from the first gas port to the second gas port in the purification pipeline;

[0036] Figure 7 yes Figure 5 A schematic diagram of the structure of the purification module of the hydrogen production system, in which the fluid in the purification pipeline flows from the second gas port to the first gas port.

[0037] Figure label:

[0038] 100. Fluid switching components;

[0039] 110. First switching path; 111. First air port; 112. Third solenoid valve; 113. Fourth solenoid valve; 120. Second switching path; 121. Second air port; 122. Fifth solenoid valve; 123. Sixth solenoid valve;

[0040] 210. First distribution branch road;

[0041] 211. First purifier; 212. Second pressure sensor; 213. Fourth check valve;

[0042] 220. Second distribution branch;

[0043] 221. Second purifier; 222. Third pressure sensor; 223. Fifth check valve; 230. Third connecting branch; 231. Throttling device;

[0044] 310. Hydrogen passage; 311. Unloading valve; 312. Pressure sensor; 313. First solenoid valve; 314. First check valve;

[0045] 320. Exhaust gas passage;

[0046] 330. Emission pathways;

[0047] 331. Second check valve; 332. Second solenoid valve;

[0048] 400. Purification module housing;

[0049] 410. Purification zone; 411. H-type scaffold;

[0050] 420. Electrical control area; 421. Power supply; 422. Controller;

[0051] 430. Divider;

[0052] 440. Fan;

[0053] 451. Quick-connect fluid interface; 452. Electrical interface; 453. Force application part;

[0054] 461. Top cover; 462. Bottom frame. Detailed Implementation

[0055] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0056] The following is for reference. Figures 1-7 Describes a purification module of a hydrogen production system according to an embodiment of this application.

[0057] Please see Figures 1 to 5 A hydrogen production system purification module according to an embodiment of this application includes: a purification module housing 400;

[0058] like Figure 1As shown, the front panel of the purification module housing 400 is provided with a fluid quick interface for connecting to pipelines, an electrical interface for connecting to electrical equipment, and a force application part. The force application part is located between the fluid quick interface and the electrical interface for easy hand-carrying and force application.

[0059] Specifically, such as Figure 2 As shown, the purification module housing includes: an upper cover and a bottom frame; the upper cover and the bottom frame are detachably connected and together form an inner cavity isolated from the external environment.

[0060] More specifically, the inner cavity is provided with a partition plate 430, which divides the inner cavity into a purification zone 410 and an electrical control zone 420. A first purifier and a second purifier are arranged in parallel at intervals within the purification zone. The purification pipelines of the first purifier 211 and the second purifier 221, as well as the control valve, are located between the first purifier 211 and the second purifier 221. The electrical control zone 420 is provided with a power supply 421 and a controller 422 electrically connected to the power supply 421. The controller 422 is electrically connected to the first purifier 211, the second purifier 221, and the control valve to control and supply power to the first purifier 211, the second purifier 221, and the control valve.

[0061] The purification zone 410 is equipped with flow components such as a fluid switching assembly 100, a first purifier 211, a second purifier 221, an unloading valve 311, a first pressure sensor 312, and a first solenoid valve 313. The electrical control zone 420 is equipped with a power supply 421 and a controller 422 connected to the power supply 421. The controller 422 is connected to the fluid switching assembly 100, the unloading valve 311, the first pressure sensor 312, and the first solenoid valve 313. In actual operation, the housing 400 is equipped with an air outlet, and the purification zone 410 and the electrical control zone 420 can be connected. At the same time, a fan 440 is installed in the purification zone 410 and / or the electrical control zone 420 to reduce the temperature of electronic equipment such as the power supply 421 and the controller 422 in the electrical control zone 420.

[0062] The fluid switching assembly 100 has a first air port 111 and a second air port 121.

[0063] like Figures 6-7 As shown, the first air port 111 is connected to the first flow branch 210, and the first purifier 211 is connected to the first flow branch 210; the second air port 121 is connected to the second flow branch 220, and the second purifier 221 is connected to the second flow branch 220.

[0064] A third connecting branch 230 is connected between the first circulation branch 210 and the second circulation branch 220, and a throttling device 231 is connected to the third connecting branch 230; the first circulation branch 210 and the second circulation branch 220 are connected in parallel to the hydrogen passage 310.

[0065] The hydrogen passage 310 is sequentially equipped with an unloading valve 311, a first pressure sensor 312, and a first solenoid valve 313 along the direction of hydrogen flow.

[0066] The fluid switching assembly 100 is configured to allow fluid to flow from a first air port 111 to a second air port 121, with the second air port 121 connected to the exhaust gas passage 320; or, to allow fluid to flow from the second air port 121 to the first air port 111, with the first air port 111 connected to the exhaust gas passage 320.

[0067] In actual operation, the fluid switching component 100 can be used in the following two scenarios.

[0068] Scenario 1: Fluid flows from the first air port 111 to the second air port 121.

[0069] like Figure 6 and Figure 7 As shown, the water vapor mixture flows through the fluid switching assembly 100. Some valves in the fluid switching assembly 100 are open and others are closed. The water vapor mixture flows out from the first gas port 111 of the fluid switching assembly 100 and becomes hydrogen with higher purity and higher gas flow rate after passing through the first purifier 211.

[0070] At this time, most of the hydrogen flows to the hydrogen passage 310. When the pressure sensor detects that the pressure in the hydrogen passage 310 has reached the set pressure, the first solenoid valve 313 is opened to discharge the hydrogen as product hydrogen. The other part of the hydrogen flows into the second purifier 221 after being throttled by the throttling device 231. Then, the small amount of water and other impurity gases retained in the second purifier 221 are gradually discharged from the waste gas passage 320.

[0071] It should be noted that most of the hydrogen flows into the hydrogen passage 310. The unloading valve 311 only opens when the hydrogen pressure in the pipeline reaches the opening pressure of the unloading valve 311, releasing the excess hydrogen. When the pressure in this section of the pipeline is lower than the opening pressure of the unloading valve 311, the unloading valve 311 closes. The released hydrogen enters the pipeline before the first pressure sensor 312. When the controller 422 detects the real-time hydrogen pressure in this section of the pipeline using the first pressure sensor 312, it opens the first solenoid valve 313 when the pressure reaches the set pressure, thus supplying hydrogen externally.

[0072] Scenario 2: Fluid flows from the second air port 121 to the first air port 111.

[0073] like Figure 6 and Figure 7As shown, the water vapor mixture flows through the fluid switching assembly 100. Some valves in the fluid switching assembly 100 are closed and others are open. The water vapor mixture flows out from the second gas port 121 of the fluid switching assembly 100 and is then purified by the second purifier 221 to obtain hydrogen with higher purity and higher gas flow rate.

[0074] At this time, most of the hydrogen flows to the hydrogen passage 310. When the pressure sensor detects that the pressure in the hydrogen passage 310 has reached the set pressure, the first solenoid valve 313 is opened to discharge the hydrogen as product hydrogen. The other part of the hydrogen flows into the first purifier 211 after being throttled by the throttling device 231. Then, the small amount of water and other impurity gases retained in the first purifier 211 are gradually discharged from the waste gas passage 320.

[0075] It should be noted that in scenario one, the first purifier 211 can absorb impurity gases and water vapor, thereby producing high-purity hydrogen; the second purifier 221 desorbs impurity gases and water vapor. In scenario two, the working processes of the first purifier 211 and the second purifier 221 are reversed. In summary, the first purifier 211 and the second purifier 221 can work alternately.

[0076] Specifically, the fluid switching assembly 100 includes a first switching path 110 and a second switching path 120 that are interconnected; a third solenoid valve 112 and a fourth solenoid valve 113 are provided on the first switching path 110; a fifth solenoid valve 122 and a sixth solenoid valve 123 are provided on the second switching path 120; a first flow branch 210 is connected between the third solenoid valve 112 and the fourth solenoid valve 113, and a second flow branch 220 is connected between the fifth solenoid valve 122 and the sixth solenoid valve 123;

[0077] The third solenoid valve 112, the fourth solenoid valve 113, the fifth solenoid valve 122, and the sixth solenoid valve 123 are configured such that the third solenoid valve 112 and the sixth solenoid valve 123 have a first open / closed state; the fourth solenoid valve 113 and the fifth solenoid valve 122 have a second open / closed state, and the first open / closed state is the opposite of the second open / closed state.

[0078] It should be noted that the relevant technology involves configuring a back pressure valve in the hydrogen passage to regulate and maintain the required back pressure, ensuring the stable operation of the hydrogen purification module. However, the back pressure valve is typically large (typical dimensions: 48 mm diameter, 60 mm dial, 126 mm total height), which can limit its installation and maintenance in applications with limited space.

[0079] In the above embodiments of this application, the unloading valve 311 is used instead of the back pressure valve to complete the function of system back pressure. At the same time, once the unloading valve 311 is set, the user does not need to make any adjustments, which simplifies the user's operation. In addition, the unloading valve 311 is smaller in size than the back pressure valve (general dimensions: diameter 19, right angle length 40, total height 100), which means that this application greatly reduces the space requirements, allowing the size of the hydrogen production system purification module to be designed to be smaller, making it easier to install and maintain in compact space applications.

[0080] It should be noted that the aforementioned throttling device 231 includes a throttling tube or a throttling orifice plate. Compared with commonly used throttling valves, throttling plates or orifice plates are not only lower in cost and simpler in structure, but also provide stable throttling effects. They can prevent the purification module from being misoperated during transportation or use, which could lead to unstable flow rates and waste of hydrogen.

[0081] like Figure 6 As shown, in some embodiments, a first check valve 314 is also provided on the hydrogen passage 310, the first check valve 314 being downstream of the first solenoid valve 313; and / or, the first solenoid valve 313 is a normally closed solenoid valve.

[0082] In this embodiment, the first one-way valve 314 only allows hydrogen to flow in one direction, that is, from the first solenoid valve 313 to the outlet of the hydrogen passage 310, so as to prevent hydrogen from flowing back due to pressure fluctuations or the influence of external systems.

[0083] like Figure 7 As shown, in some embodiments, there is an emission passage 330 between the hydrogen passage 310 and the exhaust passage 320, and a second solenoid valve 332 is connected to the emission passage 330; and / or, the second solenoid valve 332 is a normally open solenoid valve.

[0084] In this embodiment, when there is an unexpected power outage, the second solenoid valve 332 is in the open state. At this time, the residual hydrogen in the hydrogen passage 310 will be quickly released through the emission passage 330, thereby avoiding the retention of hydrogen and reducing the risk of explosion and combustion.

[0085] In actual implementation, a second check valve 331 is connected between the second solenoid valve 332 and the exhaust gas passage 320; a third check valve is connected between the fluid switching assembly 100 and the exhaust gas passage 320.

[0086] In this embodiment, the exhaust gas passage 320 may contain retained impurity gases. If these impurity gases flow back to the discharge passage 330 or the fluid switching component 100 due to pressure fluctuations or other reasons, they may contaminate the upstream components. The second one-way valve 331 and the third one-way valve ensure that the impurity gases can only be discharged in one direction, thereby avoiding backflow of contaminants.

[0087] like Figures 1-5As shown, in some embodiments, in the hydrogen production system purification module, the purification module housing 400 is rectangular, and the partition 430 is arranged front and back along the vertical direction so that the purification zone 410 and the electrical control zone 420 are arranged side to side. The controller 422 is connected to the fluid switching component 100, the unloading valve 311, the first pressure sensor 312, and the first solenoid valve 313 respectively.

[0088] The first purifier 211 and the second purifier 221 are arranged in parallel and spaced apart, with the first flow branch 210 and the second flow branch 220 located between the first purifier 211 and the second purifier 221. This effectively reduces the space occupied and improves the structural compactness.

[0089] In actual implementation, the first flow branch 210 is also equipped with a second pressure sensor 212 and a fourth check valve 213, which are sequentially located downstream of the first purifier 211; used to monitor the hydrogen pressure after flowing through the first purifier 211 in real time.

[0090] The second flow branch 220 is also equipped with a third pressure sensor 222 and a fifth check valve 223. The fifth check valve 223 and the second flow branch 220 are sequentially located downstream of the second purifier 221 to monitor the hydrogen pressure after flowing through the second purifier 221 in real time.

[0091] like Figure 3 As shown, in some embodiments, the purification zone 410 is further provided with an H-shaped support 411, with the second pressure sensor 212 and the fourth one-way valve 213 located in the first layer of the H-shaped support 411; the third pressure sensor 222 and the fifth one-way valve 223 located in the second layer of the H-shaped support 411; the first layer and the second layer are spaced apart in the vertical direction.

[0092] This makes full use of the space in the purification zone 410, avoiding excessive spreading of the second pressure sensor 212, the fourth one-way valve 213, the third pressure sensor 222, and the fifth one-way valve 223 on the horizontal plane, thereby reducing the area occupied.

[0093] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0094] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0095] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0096] In the description of this application, "multiple" means two or more.

[0097] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0098] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0100] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A purification module for a hydrogen production system, characterized in that, include: Purification module housing; The inner cavity of the purification module housing is provided with a partition plate, which separates the inner cavity into a purification zone and an electronic control zone; The purification zone is provided with a first purifier and a second purifier arranged in parallel at intervals, and the purification pipelines and control valves of the first purifier and the second purifier are located between the first purifier and the second purifier. The electrical control area is equipped with a power supply and a controller electrically connected to the power supply. The controller is electrically connected to the first purifier, the second purifier, and the control valve to control and supply power to the first purifier, the second purifier, and the control valve.

2. The hydrogen production system purification module according to claim 1, characterized in that, The purification pipeline is equipped with a fluid switching assembly, which has a first gas port and a second gas port. The first gas port is connected to a first flow branch, and the second gas port is connected to a second flow branch. The first flow branch and the second flow branch are connected in parallel to a hydrogen passage. A third connecting branch is connected between the first flow branch and the second flow branch, and a throttling device is connected to the third connecting branch. The fluid switching assembly is configured to allow fluid to flow from the first gas port to the second gas port, and the second gas port is connected to an exhaust gas passage; or, to allow fluid to flow from the second gas port to the first gas port, and the first gas port is connected to an exhaust gas passage. The first purifier is connected to the first flow branch, and the second purifier is connected to the second flow branch. The purification pipeline is also equipped with an unloading valve, a first pressure sensor, and a first solenoid valve, which are sequentially arranged on the hydrogen passage; wherein, the unloading valve is configured to open when the pressure in the hydrogen passage reaches a preset pressure.

3. The purification module of the hydrogen production system according to claim 2, characterized in that, The hydrogen passage is also provided with a first one-way valve, which is located downstream of the first solenoid valve; and / or, the first solenoid valve is a normally closed solenoid valve.

4. The purification module of the hydrogen production system according to claim 2, characterized in that, An emission passage is provided between the hydrogen passage and the waste gas passage, and a second solenoid valve is connected to the emission passage; the second solenoid valve is a normally open solenoid valve.

5. The purification module of the hydrogen production system according to claim 1, characterized in that, The front panel of the purification module housing is provided with a fluid quick interface, an electrical interface and a force application part, with the force application part located between the fluid quick interface and the electrical interface; And / or, the purification module housing includes: an upper cover and a bottom frame; the upper cover is detachably connected to the bottom frame and together with the bottom frame forms the inner cavity isolated from the external environment.

6. The purification module of the hydrogen production system according to claim 2, characterized in that, The throttling device includes a throttling tube or a throttling orifice plate.

7. The purification module of the hydrogen production system according to claim 2, characterized in that, The first flow branch is also provided with a second pressure sensor and a fourth check valve, the second pressure sensor and the fourth check valve being sequentially located downstream of the first purifier; the second flow branch is also provided with a third pressure sensor and a fifth check valve, the fifth check valve and the second flow branch being sequentially located downstream of the second purifier.

8. The hydrogen production system purification module according to claim 7, characterized in that, The purification zone is also equipped with an H-type support; The second pressure sensor and the fourth one-way valve are located on the first layer of the H-shaped bracket; the third pressure sensor and the fifth one-way valve are located on the second layer of the H-shaped bracket; the first layer and the second layer are spaced apart in the vertical direction.

9. The purification module of the hydrogen production system according to claim 2, characterized in that, The fluid switching assembly includes a first switching path and a second switching path that are interconnected; a third solenoid valve and a fourth solenoid valve are provided on the first switching path; and a fifth solenoid valve and a sixth solenoid valve are provided on the second switching path. The first flow branch is connected between the third solenoid valve and the fourth solenoid valve, and the second flow branch is connected between the fifth solenoid valve and the sixth solenoid valve; The third, fourth, fifth, and sixth solenoid valves are configured such that the third and sixth solenoid valves have a first open / closed state, and the fourth and fifth solenoid valves have a second open / closed state, wherein the first open / closed state is the opposite of the second open / closed state.

10. The purification module of the hydrogen production system according to any one of claims 1 to 9, characterized in that, The purification module housing is rectangular, and the partition plate is arranged front and back along the vertical direction so that the purification area and the electronic control area are arranged side to side.

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