Hydrogen pressure regulating station

Abstract

The utility model discloses a kind of hydrogen pressure regulating station, it is related to hydrogen pressure regulating technical field, including hydrogen pressure regulating pipeline, monitoring system, nitrogen purging system and explosion-proof wall, purging interface and purging replacement diffusion port are provided on hydrogen pressure regulating pipeline, nitrogen purging system and the purging interface of each hydrogen pressure regulating pipeline are communicated, and for when accident occurs, corresponding hydrogen pressure regulating pipeline is inhaled into nitrogen and carries out gas replacement in hydrogen pressure regulating pipeline, improve the security of production, while hydrogen and nitrogen mixture in hydrogen pressure regulating pipeline can be diffused to outside through the purging replacement diffusion port described above.When multiple hydrogen pressure regulating pipeline all appear accident, nitrogen purging system can simultaneously blow gas in each hydrogen pressure regulating pipeline.Hydrogen pressure regulating pipeline is arranged in explosion-proof wall, to protect hydrogen pressure regulating pipeline by explosion-proof wall, and effectively prevent the explosion combustion of hydrogen pressure regulating pipeline and the like from affecting outside, improve the security of hydrogen pressure regulating process.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen pressure regulation technology, and more specifically, to a hydrogen pressure regulating station. Background Technology

[0002] With the increasing application of hydrogen energy in iron smelting, and the relatively low pressure requirements of iron smelting processes for hydrogen, the demand for hydrogen pressure regulation is also increasing. However, many current hydrogen pressure regulation stations directly adopt the design mode of natural gas pressure regulation stations. This approach fails to fully adapt to the actual characteristics of hydrogen, thus bringing certain safety hazards.

[0003] Therefore, how to improve the safety of hydrogen pressure regulation operations has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a hydrogen pressure regulating station to improve the safety of hydrogen pressure regulating operations.

[0005] A hydrogen pressure regulating station, comprising:

[0006] At least two hydrogen pressure regulating pipelines are provided, each equipped with a purge port and a purge displacement vent, and a first pressure regulating valve is provided on the hydrogen pressure regulating pipeline.

[0007] The monitoring system includes at least a first pressure gauge for detecting the pressure within the hydrogen pressure regulating pipeline;

[0008] The nitrogen purging system is connected to the purging interface of each of the hydrogen pressure regulating pipelines and is used to purge nitrogen into the hydrogen pressure regulating pipelines.

[0009] An explosion-proof wall, wherein the hydrogen pressure regulating pipeline is installed inside the explosion-proof wall.

[0010] Optionally, in the above-mentioned hydrogen pressure regulating station, at least two manual shut-off valves are provided on the hydrogen pressure regulating pipeline. The two manual shut-off valves are respectively located on the inlet side and outlet side of the first pressure regulating valve, and the valve handwheel of the manual shut-off valve is located outside the explosion-proof wall.

[0011] Alternatively, at least two electrically operated shut-off valves may be provided on the hydrogen pressure regulating pipeline, with the two electrically operated shut-off valves respectively located on the inlet side and outlet side of the first pressure regulating valve.

[0012] Optionally, in the aforementioned hydrogen pressure regulating station, the nitrogen purging system includes a nitrogen tank, a main connecting pipe, and at least two connecting branch pipes. One end of the main connecting pipe is connected to the nitrogen tank, and the other end is connected to each of the connecting branch pipes. Each of the connecting branch pipes is connected to the purging interface of each of the hydrogen pressure regulating pipelines.

[0013] Optionally, in the aforementioned hydrogen pressure regulating station, a first quick-cut valve is provided on the connecting main pipe;

[0014] The purging and displacement vent is located on the displacement vent pipe of the hydrogen pressure regulating pipeline, and a second quick-cut valve is provided on the displacement vent pipe.

[0015] Optionally, in the aforementioned hydrogen pressure regulating station, a second pressure regulating valve and two first shut-off valves are provided on the connecting main pipe, and the two first shut-off valves are respectively located on the inlet side and outlet side of the second pressure regulating valve.

[0016] Optionally, in the aforementioned hydrogen pressure regulating station, the nitrogen purging system further includes a bypass pipe, the two ends of which are respectively connected to the nitrogen tank and the connecting branch pipe, and are connected in parallel with the connecting main pipe, and a third shut-off valve is provided on the bypass pipe.

[0017] Optionally, in the aforementioned hydrogen pressure regulating station, each of the connecting branch pipes is equipped with a second shut-off valve.

[0018] Optionally, in the aforementioned hydrogen pressure regulating station, the monitoring system further includes at least one of a second pressure gauge, a first thermometer, a second flow meter, and a second flow meter, wherein the second pressure gauge is used to detect the pressure in the nitrogen purging system, the first thermometer is used to detect the temperature in the hydrogen pressure regulating pipeline, the second thermometer is used to detect the temperature in the nitrogen purging system, the first flow meter is used to detect the flow rate in the hydrogen pressure regulating pipeline, and the second flow meter is used to detect the flow rate in the nitrogen purging system.

[0019] Optionally, in the aforementioned hydrogen pressure regulating station, the hydrogen pressure regulating pipeline is connected to a sewage pipe, and the sewage pipe is provided with a sewage outlet for discharging sewage.

[0020] Optionally, in the aforementioned hydrogen pressure regulating station, the number of purge and displacement vents on each of the hydrogen pressure regulating pipelines is at least one.

[0021] This utility model provides a hydrogen pressure regulating station comprising a hydrogen pressure regulating pipeline, a monitoring system, a nitrogen purging system, and an explosion-proof wall. There are at least two hydrogen pressure regulating pipelines, one of which is in normal use while the other serves as a backup. Each hydrogen pressure regulating pipeline can independently meet the hydrogen supply and pressure regulation requirements, ensuring that hydrogen pressure regulation operations can continue normally even if one pipeline fails. The hydrogen pressure regulating pipeline is equipped with a purging interface and a purging and replacement vent. A first pressure regulating valve is also installed on the hydrogen pressure regulating pipeline to adjust the hydrogen pressure within the pipeline to maintain it within the required pressure range. The monitoring system includes at least a first pressure gauge for detecting the pressure within the hydrogen pressure regulating pipeline. The first pressure gauge, in conjunction with the first pressure regulating valve, enables hydrogen pressure regulation. Furthermore, the first pressure gauge provides timely feedback signals when abnormal pressure occurs within the hydrogen pressure regulating pipeline, facilitating subsequent processing. The nitrogen purging system is connected to the purging ports of each hydrogen pressure regulating pipeline. In the event of an accident, nitrogen is introduced into the corresponding hydrogen pressure regulating pipeline to replace the gas within it, improving production safety. Simultaneously, the hydrogen and nitrogen mixture within the hydrogen pressure regulating pipeline can be released to the outside through the aforementioned purging and replacement vents. When multiple hydrogen pressure regulating pipelines experience accidents, the nitrogen purging system can simultaneously purge each pipeline. The hydrogen pressure regulating pipelines are housed within an explosion-proof wall for protection, effectively preventing explosions or combustion from affecting the outside environment.

[0022] Compared to related technologies, the hydrogen pressure regulating station provided by this utility model can detect the operating status of the hydrogen pressure regulating pipeline in a timely manner through the setting of a monitoring system; in the event of an accident, the hydrogen in the hydrogen pressure regulating pipeline can be replaced by a nitrogen purging system to reduce safety hazards; and the setting of an explosion-proof wall can effectively prevent the combustion and explosion of the hydrogen pressure regulating pipeline from affecting the outside world. The hydrogen pressure regulating station disclosed in this utility model has set up multiple protection measures, which improves the safety of the hydrogen pressure regulating process, and the accident or maintenance of a hydrogen pressure regulating pipeline will not affect the normal operation of the hydrogen pressure regulating operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the hydrogen pressure regulating pipeline disclosed in an embodiment of the present utility model;

[0025] Figure 2This is a schematic diagram of the nitrogen purging system disclosed in an embodiment of the present invention.

[0026] Among them, 100 is the hydrogen pressure regulating pipeline, 101 is the purging interface, 102 is the purging and replacement venting port, 103 is the drain port, 104 is the high pressure venting main pipe, 105 is the purging valve, and 106 is the second quick-cut valve.

[0027] 200 is a nitrogen tank, 210 is a main connecting pipe, 211 is a second pressure regulating valve, 212 is a first shut-off valve, 213 is a third shut-off valve, 214 is a bypass pipe, 220 is a connecting branch pipe, 221 is a second shut-off valve, and 230 is a first quick-cut valve.

[0028] 300 refers to the intake manifold. Detailed Implementation

[0029] The core of this utility model lies in disclosing a hydrogen pressure regulating station to improve the safety of hydrogen pressure regulating operations.

[0030] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the utility model as described in the claims. It should be noted that, for ease of description, only the parts relevant to the utility model are shown in the drawings. Unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0031] It should be noted that in this application, "inlet side" refers to the side where fluid flows into the valve body, and "outlet side" refers to the side where fluid flows out of the valve body.

[0032] Combination Figure 1 and Figure 2 , Figure 1The area inside and outside the dashed box represents a hydrogen pressure regulating pipeline 100. The hydrogen pressure regulating station disclosed in this embodiment includes a hydrogen pressure regulating pipeline 100, a monitoring system, a nitrogen purging system, and an explosion-proof wall. There are at least two hydrogen pressure regulating pipelines 100, one of which is in normal use and the other is a backup. Each hydrogen pressure regulating pipeline 100 can independently meet the hydrogen supply and pressure regulation requirements, ensuring that the hydrogen pressure regulation operation can still operate normally when one of the hydrogen pressure regulating pipelines 100 fails. A purging interface 101 and a purging and replacement venting port 102 are provided on the hydrogen pressure regulating pipeline 100. At the same time, a first pressure regulating valve is provided on the hydrogen pressure regulating pipeline 100 to regulate the hydrogen pressure in the hydrogen pressure regulating pipeline 100 to keep it within the required pressure range. The monitoring system includes at least a first pressure gauge for detecting the pressure inside the hydrogen pressure regulating pipeline 100. The first pressure gauge, in conjunction with the first pressure regulating valve, can regulate the pressure of hydrogen. Furthermore, the first pressure gauge can promptly provide feedback signals when the pressure inside the hydrogen pressure regulating pipeline 100 becomes abnormal, facilitating subsequent processing.

[0033] The nitrogen purging system is connected to the purging ports 101 of each hydrogen pressure regulating pipeline 100, and is used to introduce nitrogen into the corresponding hydrogen pressure regulating pipeline 100 to replace the gas within the pipeline in the event of an accident, thereby improving production safety. Simultaneously, the hydrogen and nitrogen mixture within the hydrogen pressure regulating pipeline 100 can be released to the outside through the aforementioned purging and replacement vent ports 102. When multiple hydrogen pressure regulating pipelines 100 experience accidents, the nitrogen purging system can simultaneously purge each pipeline 100. The hydrogen pressure regulating pipelines 100 are housed within an explosion-proof wall to protect them and effectively prevent explosions or combustion of the hydrogen pressure regulating pipelines 100 from affecting the outside environment.

[0034] Compared to existing technologies, the hydrogen pressure regulating station disclosed in this utility model can detect the operating status of the hydrogen pressure regulating pipeline 100 in a timely manner through the setting of a monitoring system; in the event of an accident, the hydrogen in the hydrogen pressure regulating pipeline 100 can be replaced by a nitrogen purging system to reduce safety hazards; and the setting of an explosion-proof wall can effectively prevent the combustion and explosion of the hydrogen pressure regulating pipeline 100 from affecting the outside world. The hydrogen pressure regulating station disclosed in this utility model has set up multiple protection measures, which improves the safety of the hydrogen pressure regulating process, and the accident or maintenance of one hydrogen pressure regulating pipeline 100 will not affect the normal operation of the hydrogen pressure regulating operation.

[0035] Specifically, each hydrogen pressure regulating pipeline 100 is equipped with a purge valve 105. In case of a malfunction, the purge valve 105 opens, allowing the nitrogen purging system to purge nitrogen into the corresponding hydrogen pressure regulating pipeline 100. The purge valve 105 can be an automatic valve, a solenoid valve, or an electric valve. Automatic valves have a simple structure, require no additional power equipment, and can operate normally in situations with unstable or no power supply, offering higher reliability. Solenoid valves and electric valves facilitate timely control and adjustment. Each hydrogen pressure regulating pipeline 100 is connected to the main inlet pipe 300, allowing hydrogen to be supplied to each hydrogen pressure regulating pipeline 100 through the same pipeline, thus reducing costs.

[0036] Hydrogen pressure regulating stations are typically semi-open structures, with explosion-proof walls that can be 2.5m high concrete explosion-proof walls. In some embodiments, to ensure production safety in case of an accident, all pipelines in the hydrogen pressure regulating station are equipped with concrete explosion-proof protection, and the valve stems of all manual valves can be extended outside the explosion-proof wall for operation. When overhauling the hydrogen pressure regulating pipeline 100, it is necessary to first close the valves such as the hydrogen supply shut-off valve outside the explosion-proof wall, and then purge and replace it using a nitrogen purging system. After verifying that the gas purged from the purging and replacement vent 102 is a non-explosive gas, subsequent maintenance work can begin.

[0037] To ensure rapid shut-off in case of an accident, the first pressure regulating valve may have a shut-off function or may be used in combination with a quick-cut valve. For example, at least two manual shut-off valves are provided on the hydrogen pressure regulating pipeline 100, with the two manual shut-off valves respectively located on the inlet and outlet sides of the first pressure regulating valve. The handwheel of the manual shut-off valve is located outside the explosion-proof wall for easy manual shut-off operation. The aforementioned manual shut-off valve can also be replaced with an electric valve for convenient remote operation; that is, at least two electric shut-off valves are provided on the hydrogen pressure regulating pipeline 100, with the two electric shut-off valves respectively located on the inlet and outlet sides of the first pressure regulating valve. The hydrogen pressure regulating pipeline 100 may be made of steel, and the aforementioned manual shut-off valve may be made of stainless steel or other materials; this application embodiment does not impose any limitations on this. Furthermore, to ensure the normal operation of the first pressure regulating valve, the first pressure regulating valve may be equipped with a filtration function, or a filtration structure may be provided on the hydrogen pressure regulating pipeline 100.

[0038] Combination Figure 1 To ensure the safe use of the hydrogen pressure regulating station, a displacement venting pipe and a high-pressure venting main pipe 104 are installed on the hydrogen pressure regulating pipeline 100. The outlet of the displacement venting pipe serves as the aforementioned purging displacement venting port 102, and can directly discharge nitrogen into the atmosphere. The combustible gas discharged from the high-pressure venting main pipe 104 is sent to the combustion tower for combustion and then released.

[0039] In some embodiments disclosed in this utility model, the nitrogen purging system includes a nitrogen tank 200, a main connecting pipe 210, and at least two connecting branch pipes 220. The nitrogen tank 200 serves as a rapid replacement gas source, and its nitrogen storage capacity is a certain multiple of the volume of the hydrogen pressure regulating pipeline 100 system. One end of the main connecting pipe 210 is connected to the nitrogen tank 200, and the other end is connected to each of the connecting branch pipes 220. Each connecting branch pipe 220 is connected to a purging port 101 of each hydrogen pressure regulating pipeline 100 in a one-to-one correspondence, so as to supply nitrogen to multiple hydrogen pressure regulating pipelines 100 through the same nitrogen tank 200. In the event of an accident, nitrogen is introduced from the nitrogen tank 200 through the main connecting pipe 210 and the connecting branch pipes 220 into the corresponding hydrogen pressure regulating pipeline 100. Furthermore, in conjunction with... Figure 2 The nitrogen tank 200 is equipped with an inlet valve, which is connected to an external pipeline for replenishing nitrogen into the nitrogen tank 200.

[0040] On the main pipe 210 and the branch pipe 220, valve bodies such as shut-off valves, check valves, and quick-acting valves can be configured according to actual conditions. Shut-off valves can perform shut-off functions, check valves can prevent reverse flow of gas in the pipeline, and quick-acting valves can perform rapid shut-off and opening functions. In some embodiments, combined with... Figure 1 and Figure 2 A first quick-cut valve 230 is installed on the main connecting pipe 210, and a purge and venting port 102 is installed on the venting pipe of the hydrogen pressure regulating pipeline 100, with a second quick-cut valve 106 installed on the venting pipe. In the event of an accident, the first quick-cut valve 230 and the second quick-cut valve 106 open in conjunction, rapidly introducing nitrogen into the hydrogen pressure regulating pipeline 100 where the accident occurred, and venting the hydrogen and nitrogen mixture in the hydrogen pressure regulating pipeline 100 to the atmosphere.

[0041] Combination Figure 2 The main connecting pipe 210 is equipped with a second pressure regulating valve 211 and two first shut-off valves 212. The second pressure regulating valve 211 is used to regulate the pressure of nitrogen gas. The two first shut-off valves 212 are respectively located on the inlet and outlet sides of the second pressure regulating valve 211 to ensure safe isolation of the second pressure regulating valve 211 during maintenance. The first shut-off valves 212 can be manual or electric valves.

[0042] Combination Figure 2 Each connecting branch pipe 220 is equipped with a second shut-off valve 221 to control the connection status between the nitrogen purging system and each hydrogen pressure regulating pipeline 100. In particular, when the purging valve 105 needs to be replaced, the connection between the nitrogen purging system and the hydrogen pressure regulating pipeline 100 can be cut off by the second shut-off valve 221.

[0043] In some embodiments, combined with Figure 2The nitrogen purging system also includes a bypass pipe 214, with its two ends connected to the nitrogen tank 200 and the connecting branch pipe 220, respectively, and connected in parallel with the connecting main pipe 210. A third shut-off valve 213 is installed on the bypass pipe 214. The third shut-off valve 213 effectively prevents the normal supply of nitrogen to the hydrogen pressure regulating pipeline 100 from being affected by a malfunction of the first shut-off valve 212.

[0044] To ensure the reliable operation of the hydrogen pressure regulating station, the monitoring system also includes at least one of a second pressure gauge, a first thermometer, a second thermometer, a first flow meter, and a second flow meter. The second pressure gauge is used to detect the pressure in the nitrogen purging system, especially the nitrogen pressure before and after pressure reduction via the second pressure regulating valve 211. The first thermometer is used to detect the temperature in the hydrogen pressure regulating pipeline 100, the second thermometer is used to detect the temperature in the nitrogen purging system, the first flow meter is used to detect the flow rate in the hydrogen pressure regulating pipeline 100, and the second flow meter is used to detect the flow rate in the nitrogen purging system.

[0045] To ensure real-time monitoring of the hydrogen pressure regulating station's operating status, the pressure, temperature, flow rate, and other parameters measured by the aforementioned instruments can be transmitted to the corresponding PLC (Programmable Logic Controller) or to the main PLC of the project, ensuring safe production.

[0046] In water electrolysis-based hydrogen production, gaseous water carried in the process will precipitate under depressurization or cooling conditions. To ensure that the small amount of impurities in the hydrogen pressure regulating pipeline 100 do not accumulate, the hydrogen pressure regulating pipeline 100 is connected to the drain pipe, and the drain pipe is equipped with a drain outlet 103 for discharging impurities and condensate. A corresponding control valve can be installed on the drain pipe.

[0047] Combination Figure 1 Each of the aforementioned hydrogen pressure regulating pipelines 100 has at least one purge and displacement venting port 102, and multiple purge and displacement venting ports 102 can achieve rapid venting.

[0048] Combination Figure 1 and Figure 2 In one specific embodiment, the hydrogen pressure regulating pipeline 100 can reduce the pressure of hydrogen gas from 2.4 MPa to 2.6 MPa to 1.37 MPa to 1.47 MPa; the nitrogen pressure in the nitrogen tank 200 is 1.75 MPa to 1.8 MPa, and the purging nitrogen pressure can be reduced to 0.40 MPa to 0.45 MPa through the second pressure regulating valve 211; in the event of a safety accident, the nitrogen tank 200 quickly introduces nitrogen gas into the hydrogen pressure regulating pipeline 100 and releases the hydrogen and nitrogen mixture in the hydrogen pressure regulating pipeline 100 to the atmosphere.

[0049] The terms "first" and "second," etc., used in the specification and claims of this utility model are used to distinguish different objects, not to describe a specific order, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed. Additionally, in the description of embodiments of this utility model, "a plurality of" means two or more.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment without being explicitly excluded by another embodiment. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydrogen pressure regulating station, characterized in that, include: At least two hydrogen pressure regulating pipelines (100), each hydrogen pressure regulating pipeline (100) is provided with a purge port (101) and a purge displacement vent (102), and each hydrogen pressure regulating pipeline (100) is provided with a first pressure regulating valve; The monitoring system includes at least a first pressure gauge for detecting the pressure inside the hydrogen pressure regulating line (100); The nitrogen purging system is connected to the purging port (101) of each of the hydrogen pressure regulating pipelines (100) and is used to purge nitrogen into the hydrogen pressure regulating pipelines (100). An explosion-proof wall, wherein the hydrogen pressure regulating pipeline (100) is installed inside the explosion-proof wall.

2. The hydrogen pressure regulating station as described in claim 1, characterized in that, At least two manual shut-off valves are provided on the hydrogen pressure regulating pipeline (100). The two manual shut-off valves are respectively located on the inlet side and outlet side of the first pressure regulating valve, and the valve handwheel of the manual shut-off valve is located outside the explosion-proof wall. Alternatively, at least two electrically operated shut-off valves may be provided on the hydrogen pressure regulating pipeline (100), with the two electrically operated shut-off valves respectively located on the inlet side and outlet side of the first pressure regulating valve.

3. The hydrogen pressure regulating station as described in claim 1, characterized in that, The nitrogen purging system includes a nitrogen tank (200), a main connecting pipe (210), and at least two connecting branch pipes (220). One end of the main connecting pipe (210) is connected to the nitrogen tank (200), and the other end is connected to each of the connecting branch pipes (220). Each of the connecting branch pipes (220) is connected to the purging interface (101) of each of the hydrogen pressure regulating pipelines (100).

4. The hydrogen pressure regulating station as described in claim 3, characterized in that, A first quick-cut valve (230) is provided on the main connecting pipe (210); The purge and displacement vent (102) is located on the displacement vent pipe of the hydrogen pressure regulating pipeline (100), and a second quick-cut valve (106) is provided on the displacement vent pipe.

5. The hydrogen pressure regulating station as described in claim 3, characterized in that, The connecting main pipe (210) is provided with a second pressure regulating valve (211) and two first shut-off valves (212), and the two first shut-off valves (212) are respectively located on the inlet side and the outlet side of the second pressure regulating valve (211).

6. The hydrogen pressure regulating station as described in claim 5, characterized in that, The nitrogen purging system also includes a bypass pipe (214), the two ends of which are connected to the nitrogen tank (200) and the connecting branch pipe (220) respectively, and are connected in parallel with the connecting main pipe (210), and a third shut-off valve (213) is provided on the bypass pipe (214).

7. The hydrogen pressure regulating station as described in claim 3, characterized in that, Each of the connecting branch pipes (220) is equipped with a second shut-off valve (221).

8. The hydrogen pressure regulating station as described in claim 1, characterized in that, The monitoring system further includes at least one of a second pressure gauge, a first thermometer, a second thermometer, a first flow meter, and a second flow meter, wherein the second pressure gauge is used to detect the pressure in the nitrogen purging system, the first thermometer is used to detect the temperature in the hydrogen pressure regulating pipeline (100), the second thermometer is used to detect the temperature in the nitrogen purging system, the first flow meter is used to detect the flow rate in the hydrogen pressure regulating pipeline (100), and the second flow meter is used to detect the flow rate in the nitrogen purging system.

9. The hydrogen pressure regulating station as described in claim 1, characterized in that, The hydrogen pressure regulating pipeline (100) is connected to the sewage pipe, and the sewage pipe is provided with a sewage outlet (103) for sewage discharge.

10. The hydrogen pressure regulating station as described in claim 1, characterized in that, The number of purge and displacement vents (102) on each of the hydrogen pressure regulating lines (100) is at least one.

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