CN218158257U

CN218158257U - Hydrogen supply system for fuel cell test

Info

Publication number: CN218158257U
Application number: CN202220306809.7U
Authority: CN
Inventors: 吴钰铭; 孙贺; 王永湛; 甘全全; 戴威
Original assignee: Shanghai Shenli Technology Co Ltd
Current assignee: Shanghai Shenli Technology Co Ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-12-27
Anticipated expiration: 2032-02-16

Abstract

The utility model relates to a hydrogen supply system for fuel cell test, which comprises a first air inlet module, a second air inlet module, a safety protection module and an interface module, wherein the first air inlet module comprises a first hydrogen source, a first gas source stop valve and a first primary pressure regulating valve which are connected in sequence through pipelines; the second air inlet module comprises a second hydrogen source, a second gas source stop valve and a second primary pressure regulating valve which are sequentially connected through a pipeline; the safety protection module comprises a main pipe, three branch pipes and a backfire preventer, wherein the three branch pipes are respectively provided with a pressure release valve, a manual emptying valve and an electromagnetic valve, and the main pipe is provided with a safety pressure sensor. Compared with the prior art, the utility model discloses being equipped with two sets of hydrogen air supplies, incessant supply hydrogen when can realizing changing the hydrogen air supply, the hydrogen pressure regulating range is wide, and hydrogen pressure fluctuation is little can abundant fuel cell engine test, the long-time test demand that lasts of fuel cell pile.

Description

Hydrogen supply system for fuel cell test

Technical Field

The utility model belongs to the technical field of fuel cell tests and specifically relates to a hydrogen supply system for fuel cell tests is related to.

Background

Hydrogen is a fuel for fuel cell stacks and is essential in fuel cell stacks and fuel cell engine testing. The hydrogen consumption in the test of fuel cell engines and fuel cell stacks is large, and the test process can not be interrupted. At present, most of domestic hydrogen storage uses hydrogen steel cylinders and hydrogen tube bundle vehicles, the hydrogen storage amount is small, the gas source needs to be frequently replaced in the test process, and the test can be interrupted when the gas source is replaced, so that a set of uninterrupted hydrogen supply system needs to be developed. However, as the fuel cell industry is in the starting stage, no uninterrupted hydrogen supply system for fuel cell testing equipment is available at the present stage.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a hydrogen supply system for testing a fuel cell, which overcomes the above-mentioned drawbacks of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

a hydrogen supply system for testing a fuel cell comprises a first air inlet module, a second air inlet module, a safety protection module and an interface module, wherein the first air inlet module comprises a first hydrogen source, a first gas source stop valve and a first primary pressure regulating valve which are sequentially connected through a pipeline; the second air inlet module comprises a second hydrogen source, a second gas source stop valve and a second primary pressure regulating valve which are sequentially connected through a pipeline; the safety protection module comprises a main pipe, three branch pipes and a backfire preventer, one end of the main pipe is respectively connected with a first primary pressure regulating valve and a second primary pressure regulating valve, the other end of the main pipe is connected with the interface module, the main pipe is connected with the backfire preventer through the three branch pipes, the backfire preventer is connected with an emptying pipe, the three branch pipes are respectively provided with a pressure release valve, a manual emptying valve and an electromagnetic valve, and the main pipe is provided with a safety pressure sensor; the interface module is used for connecting a fuel cell to be tested.

Further, a first filter is arranged between the first air source stop valve and the first primary pressure regulating valve; and a second filter is arranged between the second air source stop valve and the second primary pressure regulating valve.

Further, a first pressure sensor is arranged between the first filter and the first primary pressure regulating valve; and a second pressure sensor is arranged between the second filter and the second primary pressure regulating valve, and the first pressure sensor and the second pressure sensor are both connected with a controller.

Furthermore, a first one-way valve is arranged between the first primary pressure regulating valve and the safety protection module; and a second one-way valve is arranged between the second primary pressure regulating valve and the safety protection module.

Further, the interface module comprises a secondary pressure regulating valve and a manual stop valve which are sequentially connected through a pipeline.

Further, a controller is included, the controller connecting the solenoid valve and the safety pressure sensor.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model designs the first air inlet module and the second air inlet module to carry out one use and one standby of the hydrogen gas source, and can realize the replacement of the gas source without stopping gas supply; and simultaneously, the utility model discloses a safety protection module avoids hydrogen to be lighted by the outside through the back fire preventer, avoids gas pressure too high to produce safe risk, adjusts the pressure fluctuation that the change air supply leads to through solenoid valve cooperation safety pressure sensor, provides safe, stable hydrogen supply for test system.

2. The utility model discloses in all set up filter and air-vent valve in the air intake module, impurity smugglies secretly in the filter can preventing hydrogen, damages the system valve piece, and the air-vent valve is used for stabilizing the used hydrogen pressure of test equipment, prevents because the pressure oscillation that hydrogen air supply pressure drop arouses.

3. The utility model discloses still can dispose the controller, through the pressure of each pipeline of controller control, can valve out the alarm and cooperate the solenoid valve to realize automatically regulated.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: 11-a first gas source stop valve, 12-a first filter, 13-a first pressure sensor, 14-a first primary pressure regulating valve, 15-a first one-way valve, 16-a first hydrogen source, 21-a second gas source stop valve, 22-a second filter, 23-a second pressure sensor, 24-a second primary pressure regulating valve, 25-a second one-way valve, 26-a second hydrogen source 31-a pressure relief valve, 32-a manual emptying valve, 33-an electromagnetic valve, 34-a safety pressure sensor, 35-a second pressure regulating valve, 36-a manual stop valve, 37-a backfire preventer and 41-a controller.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The embodiment of the present invention is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1, the present embodiment provides a hydrogen supply system for a fuel cell test, including a first air intake module, a second air intake module, a safety protection module, and an interface module.

The first air inlet module comprises a first hydrogen source 16, a first air source stop valve 11, a first filter 12, a first pressure sensor 13, a first primary pressure regulating valve 14 and a first one-way valve 15 which are connected in sequence through pipelines. The second air inlet module comprises a second hydrogen source 26, a second gas source stop valve 21, a second filter 22, a second pressure sensor 23, a second primary pressure regulating valve 24 and a second one-way valve 25 which are connected in sequence through pipelines. The first gas source stop valve 11 and the second gas source stop valve 21 have the main function of controlling the on-off of the hydrogen gas source; the primary function of the first filter 12 and the second filter 22 is to filter impurities in the gas; the primary function of the first pressure sensor 13 and the second pressure sensor 23 is to measure the hydrogen gas source pressure; the primary function of the first primary pressure regulating valve 14 and the second primary pressure regulating valve 24 is to reduce the pressure of the hydrogen gas source; the primary function of the first check valve 15 and the second check valve 25 is to prevent the reverse flow of gas.

The safety protection module comprises a main pipe, three branch pipes and a backfire arrester 37, wherein one end of the main pipe is respectively connected with the first one-way valve 15 and the second one-way valve 25, and the other end of the main pipe is connected with the interface module. The main pipe is connected to a flashback arrestor 37 via three branch pipes, and the flashback arrestor 37 is connected to an evacuation pipe. The three branch pipes are respectively provided with a pressure relief valve 31, a manual emptying valve 32 and an electromagnetic valve 33, and the main pipe is also provided with a safety pressure sensor 34. The main function of the pressure relief valve 31 is automatic relief of gas pressure overpressure; the main function of the manual purge valve 32 is manual gas bleed; the main function of the electromagnetic valve 33 is automatic gas release; the primary function of the relief pressure sensor 34 is to measure the pressure of the main pipe.

The interface module is used for connecting a fuel cell to be tested. The interface module comprises a secondary pressure regulating valve 35 and a manual stop valve 36 which are connected in sequence through a pipeline.

The present embodiment is further provided with a controller 41, and the controller 41 connects the solenoid valve 33, the relief pressure sensor 34, the first pressure sensor 13, and the second pressure sensor 23. The controller 41 can be a general computer, and the controller 41 can monitor the hydrogen pressure through each pressure sensor, and can send an alarm to remind the replacement of the hydrogen source when the pressure of the hydrogen source is low; when the pressure in the hydrogen pipeline is abnormal, an alarm can be sent out, and the hydrogen in the pipeline can be automatically discharged.

The working principle of the embodiment is as follows:

in the first intake module, the hydrogen gas source is filtered by the first filter 12 and enters the first primary pressure regulating valve 14, during which the first pressure sensor 13 can read the pressure of the hydrogen gas source. The first primary pressure regulating valve 14 performs primary pressure reduction on a hydrogen gas source, after hydrogen passes through a hydrogen pipeline to a gas utilization point position, secondary pressure reduction is performed through the secondary pressure regulating valve 35, the pressure is regulated to the hydrogen pressure required by the testing equipment, and the hydrogen is controlled to enter the testing equipment to be switched on and off through the manual stop valve 36. The principle of the second air intake module is the same as that of the first air intake module.

When the pressure in the hydrogen pipeline is greater than the set pressure value of the pressure release valve 31, the pressure release valve 31 can be automatically opened to release the hydrogen in the hydrogen pipeline. The manual evacuation valve 32 is mainly used for manually opening to evacuate hydrogen in the pipeline when the gas pipeline is overhauled. The electromagnetic valve 33 is mainly used for automatically discharging hydrogen in the pipeline in cooperation with a central control computer, and can be manually opened through the central control computer to remotely discharge the hydrogen. The flashback arrestor 37 prevents flashback.

The controller 41 reads the readings of the first pressure sensor 13, the second pressure sensor 23 and the safety pressure sensor 34, gives an alarm of low pressure of the hydrogen gas source and an alarm of abnormal pressure of the hydrogen pipeline, and can automatically control the electromagnetic valve 33 to be opened to empty the hydrogen in the hydrogen pipeline.

Gas replacement operation: when the first hydrogen source 16 is used, the central control computer prompts the replacement of the hydrogen source, at this time, the second hydrogen source 26 can be opened, the corresponding pressure regulating valve can be opened, and then the replacement operation of the first hydrogen source 16 can be carried out when the first hydrogen source 16 is closed. At the moment, hydrogen is supplied continuously, and the work of the test equipment cannot be influenced.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention by those skilled in the art should be within the scope of protection defined by the claims.

Claims

1. A hydrogen supply system for a fuel cell test is characterized by comprising a first air inlet module, a second air inlet module, a safety protection module and an interface module, wherein the first air inlet module comprises a first hydrogen source (16), a first gas source stop valve (11) and a first primary pressure regulating valve (14) which are sequentially connected through a pipeline; the second air inlet module comprises a second hydrogen source (26), a second gas source stop valve (21) and a second primary pressure regulating valve (24) which are sequentially connected through pipelines; the safety protection module comprises a main pipe, three branch pipes and a backfire preventer (37), one end of the main pipe is respectively connected with a first primary pressure regulating valve (14) and a second primary pressure regulating valve (24), the other end of the main pipe is connected with an interface module, the main pipe is connected with the backfire preventer (37) through the three branch pipes, the backfire preventer (37) is connected with an emptying pipe, the three branch pipes are respectively provided with a pressure relief valve (31), a manual emptying valve (32) and an electromagnetic valve (33), and the main pipe is provided with a safety pressure sensor (34); the interface module is used for connecting a fuel cell to be tested.

2. The hydrogen supply system for fuel cell test as claimed in claim 1, wherein a first filter (12) is provided between the first gas source shutoff valve (11) and the first primary pressure regulating valve (14); and a second filter (22) is arranged between the second air source stop valve (21) and the second primary pressure regulating valve (24).

3. The hydrogen supply system for fuel cell test according to claim 2, wherein a first pressure sensor (13) is provided between the first filter (12) and the first primary pressure regulating valve (14); and a second pressure sensor (23) is arranged between the second filter (22) and the second primary pressure regulating valve (24), and the first pressure sensor (13) and the second pressure sensor (23) are both connected with a controller (41).

4. The hydrogen supply system for fuel cell test according to claim 1, wherein a first check valve (15) is provided between the first primary pressure regulating valve (14) and the safety protection module; and a second one-way valve (25) is arranged between the second primary pressure regulating valve (24) and the safety protection module.

5. The hydrogen supply system for fuel cell testing according to claim 1, wherein the interface module comprises a secondary pressure regulating valve (35) and a manual cut-off valve (36) connected in series by a pipe.

6. The hydrogen supply system for fuel cell test according to claim 1, comprising a controller (41), the controller (41) connecting the solenoid valve (33) and the safety pressure sensor (34).