A control module for a hydrogen bus pipe system

Abstract

A kind of control module for hydrogen bus pipe system includes a plurality of gas supply control modules corresponding to hydrogen supply end and control unit;Gas supply control module includes gas supply interface, first gas pressure detection device, first pressure relief valve, first stop valve, pressure reducing valve, second gas pressure detection device, second stop valve, second pressure relief valve, electric control valve, third stop valve, gas composition detection device, regulating valve, fourth stop valve, flow statistics device, gas use interface arranged in sequence along gas pipeline;Control unit monitors the pressure data of first gas pressure detection device and second gas pressure detection device and the gas composition data of gas composition detection device in real time, and controls the on-off of electric control valve to gas pipeline;Control unit controls the opening of regulating valve according to the flow data fed back by flow statistics device.The utility model solves the problems of existing control structure safety protection lag, parameter fluctuation, gas supply interruption and high artificial dependence.

Description

Technical Field

[0001] This utility model belongs to the field of gas transmission, and in particular relates to a control module for a hydrogen supply manifold system. Background Technology

[0002] With the large-scale application of clean energy sources such as hydrogen and natural gas in industrial production, transportation, and emergency power supply, the demand for centralized hydrogen collection is becoming increasingly prominent. As the core equipment for meeting this demand, the hydrogen collection pipeline skid-mounted system is a modular system that integrates the main collection pipe, branch gas pipelines, pressure / flow control components, gas detection units, safety protection components, and pipeline connectors onto a standardized skid. It boasts advantages such as high integration, small footprint, convenient on-site installation (requiring only connection to upstream and downstream interfaces), low operation and maintenance costs, and strong adaptability to various operating conditions. It can quickly adapt to the parallel gas supply needs of multiple gas-consuming devices in different scenarios, effectively solving the problems of messy pipelines, long commissioning cycles, and difficult fault diagnosis in traditional decentralized pipeline layouts. It has become a key infrastructure in the large-scale hydrogen supply system.

[0003] In hydrogen energy applications, this skid-mounted system needs to centrally distribute high-pressure hydrogen from hydrogen storage tanks or hydrogen production units through a manifold, and then achieve step-by-step pressure adaptation, dynamic flow adjustment, and precise purity control according to the needs of downstream hydrogen-using equipment. In natural gas industrial applications, it needs to aggregate medium-pressure natural gas transported from municipal pipelines and stably supply it to multiple industrial burners. Therefore, the core performance of the skid-mounted system directly determines the operational stability and safety of downstream gas-using equipment.

[0004] The gas supply control structure is the central nervous system of the hydrogen manifold skid system, running through the entire process. Its functionality directly affects the reliability, safety, and accuracy of the gas supply of the skid system. The performance of the gas supply control structure is the key to determining whether the hydrogen manifold skid system can meet the downstream equipment's requirements of "high pressure drop adaptation, low fluctuation operation, and high safety redundancy," and is directly related to the operating efficiency and safety level of the entire hydrogen supply system.

[0005] Existing skid-mounted hydrogen manifold systems mostly employ single-stage pressure reducing valves and simple flow valves for control. This results in a single pressure reduction level and slow dynamic response of the regulating components. When upstream manifold pressure fluctuates due to gas source fluctuations or downstream gas load changes abruptly, the pressure reducing system cannot quickly compensate for pressure deviations, leading to large pressure fluctuations downstream of the valve. Simultaneously, flow regulation relies on manually preset opening degrees and cannot be dynamically adjusted based on real-time gas consumption, easily causing problems such as "excessive flow leading to pipeline pressure buildup" or "insufficient flow leading to underload of gas-using equipment." These pressure fluctuations can easily create shocks. When gas-using equipment suddenly shuts down or valves close rapidly, a momentary high-pressure water hammer effect occurs within the pipeline, causing irreversible degradation of the accuracy of precision instruments in the downstream hydrogen-using system, accelerated aging of pipeline joint seals, and even damage to core components of the hydrogen-using equipment, significantly increasing equipment maintenance costs and safety hazards.

[0006] Meanwhile, the existing gas supply control structure has a low degree of automation, with core control actions relying heavily on manual operation. For example, when the pressure detection device shows overpressure, maintenance personnel need to manually open the pressure relief valve after on-site confirmation; when the gas purity test fails, the downstream gas supply valve needs to be manually closed and the system switched to the venting pipeline; flow statistics can only record data after the fact and cannot be linked with the upstream hydrogen supply module. When the flow is insufficient, manual feedback to the hydrogen supply end is required to adjust the gas supply. The entire process has a long response cycle, which is far from meeting the real-time supply and demand matching needs of gas-using equipment. Manual intervention not only leads to control lag but also easily causes safety risks due to operational errors: for example, forgetting to close the upstream shut-off valve during maintenance may lead to hydrogen leakage; failing to open the pressure relief valve in time under overpressure conditions may cause pipeline rupture; in addition, manually recorded flow and pressure data are prone to deviation, making it difficult to form an accurate gas supply parameter traceability system, which is not conducive to system fault diagnosis and optimization.

[0007] Most existing systems only have a single main gas supply pipeline. Although some are equipped with backup interfaces, there is no automatic switching mechanism between the backup interface and the main pipeline. When the main pipeline needs maintenance due to a regulating valve failure or a calibration of the detection unit, the main pipeline must be shut down and the backup interface must be manually connected. The entire maintenance process causes a period of gas supply interruption, which seriously affects the operational stability of downstream continuous production equipment. At the same time, the isolation design of core components such as regulating valves and detection devices is unreasonable. During maintenance, the gas supply of the entire manifold system must be cut off, which further prolongs the downtime and reduces the overall operating efficiency of the skid-mounted system. Utility Model Content

[0008] The purpose of this utility model is to provide a control module for a hydrogen supply manifold pipeline system, so as to solve the technical problems of weak safety protection, large pressure and flow fluctuations, easy entry of unqualified gas into the equipment, need for maintenance shutdown and high dependence on manual labor in the control module for the hydrogen supply manifold pipeline system.

[0009] To achieve the above objectives, the specific technical solution of the control module for a hydrogen supply manifold system of this utility model is as follows:

[0010] A control module for a hydrogen supply manifold system includes several gas supply control modules corresponding to the hydrogen supply end, and a control unit;

[0011] The gas supply control module includes a gas supply interface, a first gas pressure detection device, a first pressure relief valve, a first shut-off valve, a pressure reducing valve, a second gas pressure detection device, a second shut-off valve, a second pressure relief valve, an electrically controlled valve, a third shut-off valve, a gas composition detection device, a regulating valve, a fourth shut-off valve, a flow statistics device, and a gas consumption interface, arranged sequentially along the gas pipeline.

[0012] The gas supply interface is used to connect the gas pipeline to the hydrogen supply end; the first shut-off valve, the second shut-off valve, the third shut-off valve, and the fourth shut-off valve are respectively used to control the on / off of corresponding positions in the gas pipeline; the pressure reducing valve is used to reduce the pressure of the hydrogen; the first gas pressure detection device and the second gas pressure detection device are used to detect the gas pressure at corresponding positions in the gas pipeline; the first pressure relief valve and the second pressure relief valve are used to release hydrogen when the pressure exceeds the pressure threshold; the gas composition detection device is used to detect the composition of the hydrogen; the flow statistics device is used to count the amount of hydrogen released through the gas consumption interface; the gas consumption interface is used to connect the gas pipeline to the gas consumption equipment.

[0013] The control unit monitors the pressure data of the first and second air pressure detection devices and the gas composition data of the gas composition detection device in real time, and controls the on / off of the gas pipeline by the electronic control valve; the control unit controls the opening degree of the regulating valve according to the flow data fed back by the flow statistics device.

[0014] As a further improvement of this utility model, the gas supply control modules are connected by a connecting pipe, and both ends of the connecting pipe are connected to the gas transmission pipe between the third shut-off valve and the gas composition detection device. A fifth shut-off valve is provided on the connecting pipe.

[0015] As a further improvement of this utility model, the gas composition detection device includes a hydrogen detector and an oxygen detector, used to detect the purity of hydrogen and the content of oxygen.

[0016] As a further improvement of this utility model, the control unit monitors the data fed back by the gas composition detection device, and releases hydrogen to the gas-using equipment through the gas-using interface when the oxygen volume content is ≤0.5% and the hydrogen volume content is ≥99.995%.

[0017] As a further improvement of this utility model, the hydrogen gas has a pressure of 0.5 to 0.8 MPa after passing through the pressure reducing valve.

[0018] As a further improvement of this utility model, the gas released by the first pressure relief valve and the second pressure relief valve is discharged through the exhaust port, and an active exhaust pipe is provided between the exhaust port and the gas transmission pipeline, and a sixth shut-off valve is provided on the active exhaust pipe.

[0019] As a further improvement of this utility model, a seventh shut-off valve is provided in parallel on both the upstream and downstream sides of the regulating valve.

[0020] As a further improvement of this utility model, a reserved interface is provided on the gas transmission pipeline between the flow statistics device and the gas consumption interface, serving as a spare interface for the gas consumption equipment.

[0021] As a further improvement of this utility model, the exhaust port centrally discharges the released gas from all the gas supply control modules, the exhaust port adopts high-altitude discharge, and the end is equipped with a rainproof cap and a fireproof net.

[0022] As a further improvement of this utility model, needle valves are respectively provided between the first air pressure detection device, the second air pressure detection device, the gas composition detection device and the gas transmission pipeline.

[0023] Beneficial effects:

[0024] This invention effectively mitigates the risks of overpressure and pressure surges by constructing a multi-level pressure protection system. The design, consisting of a first pressure detection device, a first pressure relief valve, a second pressure detection device, a second pressure relief valve, and a control unit, forms a dual-monitoring and dual-pressure relief mechanism before and after the valve. This solves the problems of lagging single-point monitoring and slow overpressure handling in existing systems. The dual pressure detection devices monitor the high-pressure section before the valve and the low-pressure section after the valve, respectively. The control unit simultaneously receives data, quickly identifying overpressure caused by upstream fluctuations or pressure-reducing valve malfunctions, avoiding potential omissions in single-segment monitoring. When the pressure exceeds the threshold, the pressure relief valve releases pressure, quickly eliminating instantaneous high pressure, significantly shortening the response time, preventing instrument degradation, seal aging, and damage to core equipment components, and reducing maintenance costs.

[0025] The pressure reducing valve lowers the high-pressure gas to the downstream rated pressure. Combined with feedback from the second gas pressure detection, the control unit fine-tunes and compensates for pressure deviations, avoiding single-stage pressure reduction without feedback and large fluctuations, ensuring stable pressure suitable for demanding equipment. The flow statistics device provides real-time data feedback, and the control unit automatically adjusts the opening of the regulating valve according to the deviation, realizing dynamic changes in gas supply according to gas consumption, avoiding pressure buildup or underload, and ensuring efficient equipment operation.

[0026] The component detection device analyzes gas parameters and transmits the data to the control unit, which quickly determines whether the gas meets the standards. Only qualified gas triggers the opening of the electrically controlled valve; if the gas is unqualified, the valve is immediately closed (with linked venting) to avoid equipment damage or efficiency reduction, making it suitable for high-purity demand scenarios.

[0027] Each shut-off valve independently controls its corresponding passage, allowing for on / off switching as needed, adapting to scenarios such as normal gas supply, partial maintenance, and equipment shutdown. In the event of a component failure, closing the shut-off valves before and after it creates a safe zone, eliminating the need to disconnect the entire gas supply, avoiding gas supply interruptions and leakage risks, and ensuring operational safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a control module for a hydrogen supply manifold system according to the present invention;

[0029] Explanation of markings in the diagram: 1. Gas pipeline; 2. Gas supply interface; 3. First gas pressure detection device; 4. First pressure relief valve; 5. First shut-off valve; 6. Pressure reducing valve; 7. Second gas pressure detection device; 8. Second shut-off valve; 9. Second pressure relief valve; 10. Electrically controlled valve; 11. Third shut-off valve; 12. Gas composition detection device; 121. Hydrogen detector; 122. Oxygen detector; 13. Regulating valve; 131. Seventh shut-off valve; 14. Fourth shut-off valve; 15. Flow statistics device; 16. Gas interface; 161. Reserved interface; 17. Gas-using equipment; 18. Connecting pipeline; 181. Fifth shut-off valve; 19. Active exhaust pipeline; 191. Sixth shut-off valve; 20. Exhaust port; 21. Needle valve. Detailed Implementation

[0030] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0031] Implementation example:

[0032] like Figure 1 The control module shown is for a hydrogen supply manifold system, including several gas supply control modules and a control unit. The design of multiple gas supply control modules ensures continuous gas supply, avoids system outages due to single-point failures, and optimizes gas supply efficiency. In this embodiment, two gas supply control modules are used, corresponding to two sets of hydrogen supply pipelines respectively. Along the gas pipeline 1, the gas supply control module is sequentially equipped with a gas supply interface 2, a first gas pressure detection device 3, a first pressure relief valve 4, a first shut-off valve 5, a pressure reducing valve 6, a second gas pressure detection device 7, a second shut-off valve 8, a second pressure relief valve 9, an electrically controlled valve 10, a third shut-off valve 11, a gas composition detection device 12, a regulating valve 13, a fourth shut-off valve 14, a flow statistics device 15, and a gas consumption interface 16.

[0033] Gas supply interface 2 is located at the starting point of gas pipeline 1 and is connected to the external hydrogen manifold. It is the inlet for hydrogen to enter this control structure. Its interface specifications are adapted to the output flange / connector standard of the supply end to ensure gas sealing during introduction.

[0034] The first air pressure detection device 3 is located downstream of the air supply interface 2. It is used to detect the gas pressure in the high-pressure section before the valve between the air supply interface 2 and the pressure reducing valve 6 in real time (corresponding to the original pressure of the upstream supply end), and transmit the pressure data to the control unit in real time to provide a basis for overpressure protection and system status judgment.

[0035] The first pressure relief valve 4 is installed in conjunction with the first air pressure detection device 3 in the high-pressure section upstream of the valve, corresponding to the upper limit of the safe pressure of the upstream gas. When the first air pressure detection device 3 detects that the pressure exceeds the threshold, the control unit triggers the first pressure relief valve to open automatically, introducing the overpressure gas into the exhaust system to prevent high pressure from directly impacting downstream components.

[0036] The first shut-off valve 5 is located downstream of the first pressure relief valve 4 and upstream of the pressure reducing valve 6. It is used to open or close the passage between the high-pressure section before the solenoid valve 10 and the pressure reducing valve 6. It is fully open during normal gas supply; it is closed when the pressure reducing valve 6 needs maintenance or when the upstream gas supply needs to be cut off, thus isolating the pressure reducing valve 6 from the high-pressure section.

[0037] As the core pressure-reducing component, pressure-reducing valve 6 reduces the pressure of upstream high-pressure hydrogen to 0.5-0.8 MPa. Its pressure-reducing accuracy is ensured by the internal valve core structure design, and the output pressure is stable and adjustable.

[0038] The second air pressure detection device 7 is located downstream of the pressure reducing valve 6. It is used to detect the gas pressure in the "low-pressure section after the valve" (the low-pressure pipeline from the pressure reducing valve to the gas interface), and to provide real-time feedback on the pressure reduction effect to the control unit. If the pressure deviates from the target value, the output of the pressure reducing valve is adjusted and corrected.

[0039] The second shut-off valve 8 is located downstream of the second pressure detection device 7 and is used to isolate the pressure reducing valve 6 from the downstream detection and regulation unit. It closes when the pressure reducing valve 6 malfunctions and needs maintenance or when downstream components are under repair, forming an independent pressureless maintenance area to prevent gas leakage.

[0040] The second pressure relief valve 9, in conjunction with the second air pressure detection device 7, is located in the low-pressure section downstream of the valve. A threshold value is set to correspond to the upper limit of the safe pressure for downstream gas-using equipment. When the second air pressure detection device 7 detects an overpressure, the control unit triggers its opening, rapidly releasing the overpressure gas in the low-pressure section and protecting downstream precision equipment.

[0041] The electrically controlled valve 10 is an electric valve directly controlled by the control unit and serves as the switch for gas to enter the component detection stage. The control unit only allows it to open when the gas data in the gas pipeline 1 is normal (oxygen volume content ≤0.5% and hydrogen volume content ≥99.995%, hydrogen pressure 0.5~0.8Mpa); if the pressure is abnormal or subsequent tests fail, it will be immediately closed to cut off the passage.

[0042] The third shut-off valve 11 is located between the electrically controlled valve 10 and the gas composition detection device 12, and is used to isolate the detection unit from the upstream pipeline. It is closed when the gas composition detection device needs calibration or maintenance to ensure safe operation and maintenance of the detection components in a gas-free state.

[0043] The gas composition detection device 12 includes a hydrogen detector 121 and an oxygen detector 122, which analyze the composition indicators (such as hydrogen purity and oxygen content) of the flowing gas in real time and transmit the data to the control unit. The control unit determines whether the gas is qualified according to preset standards (hydrogen purity ≥ 99.995%, oxygen content ≤ 0.5%).

[0044] The regulating valve 13 is a valve whose opening is dynamically adjusted by the control unit according to the flow demand, used to precisely control the gas flow entering the gas-consuming equipment. Its opening is linked to the feedback data of the flow statistics device, which can compensate for flow deviations in real time and ensure that the output flow matches the demand of the gas-consuming equipment. A seventh shut-off valve 131 is set in parallel at both ends of the regulating valve 13. When the regulating valve 13 needs maintenance, debugging or replacement, activating the seventh shut-off valve 131 can isolate the regulating valve from the system, ensuring a continuous supply of hydrogen.

[0045] The fourth shut-off valve 14 is located downstream of the regulating valve 13 and upstream of the flow metering device 15. It is used to cut off the passage between the regulating unit and the downstream metering and gas consumption links. It is closed when the regulating valve or flow metering device is under maintenance to avoid affecting the normal operation of the gas consumption equipment.

[0046] The flow statistics device 15 integrates a flow sensor and a data recording module to measure the instantaneous and cumulative flow through the gas interface in real time. The data is synchronously transmitted to the control unit as the basis for adjusting the opening of the regulating valve, and at the same time, it forms a gas supply data ledger for traceability.

[0047] Gas interface 16 is located at the end of the single-channel module and is directly connected to the downstream gas-consuming equipment 17. It is the final output end of the gas supply, and its interface specifications are adapted to the input standards of the gas-consuming equipment to ensure a sealed connection.

[0048] The connecting pipe 18 connects multiple parallel gas supply control modules to form a complementary junction system; the fifth shut-off valve 181 is the control switch of the connecting pipe 18. Under normal circumstances, it can be closed to keep each module operating independently. When a module fails or is under maintenance, the fifth shut-off valve 181 can be opened to supply gas through other modules, ensuring the continuity of gas supply.

[0049] The active exhaust pipe 19 is connected to the exhaust port 20 as the channel for active exhaust of the gas pipeline 1. The sixth shut-off valve 191 is the control switch for active exhaust. It can be manually opened when the system is shut down or under maintenance to actively vent the residual gas in the pipeline and avoid safety risks caused by the residual gas.

[0050] Exhaust port 20 collects all exhaust gases (overpressure gas, substandard gas, residual gas, and purging gas) from all gas supply control modules. It adopts a high-altitude exhaust design (higher than surrounding equipment and operating area), and is equipped with a rain cap (to prevent rainwater backflow) and a fireproof net (to block external fire sources) at the end to ensure the safe diffusion of exhaust gases.

[0051] Needle valves 21 are respectively installed at the connection points of the first air pressure detection device 3, the second air pressure detection device 7, the gas composition detection device 12, and the gas transmission pipeline 1. They are fine-tuning shut-off valves. During normal operation, they are fully open. When the detection device needs to be disassembled, calibrated, or replaced, closing the needle valves 21 can cut off the passage between the detection device and the main pipeline to prevent gas leakage.

[0052] The control unit, serving as the system's central hub, employs a PLC controller. It connects to all detection devices (first / second air pressure detection, gas composition detection, flow statistics) and actuators (electric control valve 10, regulating valve 13, various shut-off valves, and pressure relief valves). It receives and analyzes pressure, composition, and flow data in real time; controls the on / off state of the electric control valves (allowing only qualified gas to pass through) and the opening degree of the regulating valves (dynamically matching flow) according to preset logic; triggers the pressure relief valve to operate (in case of overpressure) and links the exhaust system (to discharge unqualified gas); records operational data and supports fault alarms (such as issuing audible and visual signals when pressure is abnormal or composition exceeds the standard).

[0053] This invention constructs a comprehensive safety protection system through multi-level pressure monitoring, dual pressure relief, precise component detection, electronically controlled valve interception, and centralized and standardized high-altitude emission. This effectively avoids risks such as overpressure, substandard gases, and leaks, ensuring strong safety and controllability. Relying on graded pressure reduction, dynamic flow control, and dual pressure feedback compensation, it achieves precise pressure and flow regulation with minimal fluctuations and timely matching, making it suitable for scenarios with stringent gas supply parameter requirements, such as fuel cells. Employing a multi-module parallel design, connecting pipe switching, redundant main and backup interfaces, and segmented component isolation, it can maintain gas supply even in the event of a single module failure or maintenance, ensuring continuous and uninterrupted gas supply. With the control unit at its core, it achieves automatic pressure relief in case of abnormal pressure, automatic gas shut-off for substandard components, automatic valve adjustment for flow deviations, and automatic data acquisition, significantly reducing reliance on manual labor and operational errors. The modular parallel structure also supports dynamic adjustment of module start / stop according to load, convenient future expansion, and independent operation and maintenance of each module without interference. It combines scenario adaptability and long-term scalability, comprehensively solving the problems of lagging safety protection, large parameter fluctuations, easy gas supply interruptions, high reliance on manual labor, and poor adaptability in existing structures.

[0054] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A control module for a hydrogen supply manifold system, characterized in that, This includes several gas supply control modules and a control unit installed at the corresponding hydrogen supply end; The gas supply control module includes a gas supply interface, a first gas pressure detection device, a first pressure relief valve, a first shut-off valve, a pressure reducing valve, a second gas pressure detection device, a second shut-off valve, a second pressure relief valve, an electrically controlled valve, a third shut-off valve, a gas composition detection device, a regulating valve, a fourth shut-off valve, a flow statistics device, and a gas consumption interface, arranged sequentially along the gas pipeline. The gas supply interface is used to connect the gas pipeline to the hydrogen supply end; the first shut-off valve, the second shut-off valve, the third shut-off valve and the fourth shut-off valve are respectively used to control the on / off of the corresponding positions of the gas pipeline; the pressure reducing valve is used to reduce the pressure of the hydrogen. The first and second gas pressure detection devices are used to detect the gas pressure at corresponding locations within the gas pipeline; the first and second pressure relief valves are used to release hydrogen when the pressure exceeds a pressure threshold; the gas composition detection device is used to detect the composition of the hydrogen; and the flow rate statistics device is used to count the amount of hydrogen released through the gas outlet. The gas interface is used to connect the gas pipeline to the gas-using equipment; The control unit monitors the pressure data of the first and second air pressure detection devices and the gas composition data of the gas composition detection device in real time, and controls the on / off of the gas pipeline by the electronic control valve; the control unit controls the opening degree of the regulating valve according to the flow data fed back by the flow statistics device.

2. The control module for the hydrogen supply manifold system according to claim 1, characterized in that, The gas supply control modules are connected by a connecting pipe, the two ends of which are connected to the gas transmission pipeline between the third shut-off valve and the gas composition detection device, and a fifth shut-off valve is installed on the connecting pipe.

3. The control module for the hydrogen supply manifold system according to claim 2, characterized in that, The gas composition detection device includes a hydrogen detector and an oxygen detector, used to detect the purity of hydrogen and the content of oxygen.

4. The control module for the hydrogen supply manifold system according to claim 3, characterized in that, The control unit monitors the data fed back by the gas composition detection device, and releases hydrogen to the gas-using equipment through the gas-using interface when the oxygen volume content is ≤0.5% and the hydrogen volume content is ≥99.995%.

5. The control module for the hydrogen supply manifold system according to claim 1, characterized in that, The hydrogen gas has a pressure of 0.5 to 0.8 MPa after passing through the pressure reducing valve.

6. The control module for the hydrogen supply manifold system according to claim 1, characterized in that, The gas released by the first pressure relief valve and the second pressure relief valve is discharged through the exhaust port. An active exhaust pipe is provided between the exhaust port and the gas transmission pipeline, and a sixth shut-off valve is provided on the active exhaust pipe.

7. The control module for the hydrogen supply manifold system according to claim 1, characterized in that, The regulating valve is equipped with a seventh shut-off valve connected in parallel on both its upstream and downstream sides.

8. The control module for the hydrogen supply manifold system according to claim 1, characterized in that, A reserved interface is provided on the gas pipeline between the flow statistics device and the gas consumption interface, which serves as a backup interface for the gas consumption equipment.

9. The control module for the hydrogen supply manifold system according to claim 6, characterized in that, The exhaust port centrally discharges the released gas from all the gas supply control modules. The exhaust port is designed for high-altitude discharge and is equipped with a rain cap and a fireproof net at its end.

10. The control module for the hydrogen supply manifold system according to claim 1, characterized in that, A needle valve is provided between the first air pressure detection device, the second air pressure detection device, the gas composition detection device and the gas transmission pipeline.

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