CN217130973U - Gas supply terminal device for fuel cell test - Google Patents
Gas supply terminal device for fuel cell test Download PDFInfo
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- CN217130973U CN217130973U CN202123440444.1U CN202123440444U CN217130973U CN 217130973 U CN217130973 U CN 217130973U CN 202123440444 U CN202123440444 U CN 202123440444U CN 217130973 U CN217130973 U CN 217130973U
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Abstract
The utility model discloses an air supply terminal device for fuel cell test, which comprises five groups of air supply pipelines, namely a hydrogen pipeline, a helium pipeline, a nitrogen pipeline, a compressed air pipeline and an emptying pipeline; the hydrogen pipeline, the helium pipeline, the nitrogen pipeline and the compressed air pipeline are arranged in parallel, and the hydrogen pipeline, the helium pipeline and the nitrogen pipeline are all connected with the evacuation pipeline. The utility model discloses gas supply terminal device is used in fuel cell test carries out the gas tightness to connecting tube and detects, replaces the air in the connecting tube, and replacement gas does not pass through the direct evacuation of test equipment, has eliminated the potential safety hazard that hydrogen revealed, the explosion.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a fuel cell test is with air feed terminal device.
Background
The fuel cell directly generates electric energy by electrochemical reaction of hydrogen and oxygen under the action of a catalyst, and is a clean and efficient energy conversion device. In the research, development, production and test process of the fuel cell, when a tested piece is replaced, a large amount of air exists in a connecting pipeline, hydrogen cannot be directly filled into the connecting pipeline, the connecting pipeline needs to be replaced by nitrogen, and meanwhile, helium is used for carrying out air tightness detection on the connecting pipeline so as to eliminate potential safety hazards in the test process; and the replaced air and inert gas are discharged to a workshop discharge pipeline through an emptying pipeline and discharged out of the workshop.
That is to say, the testing process of the fuel cell needs hydrogen, compressed air, nitrogen, helium and other gases, and meanwhile, the gas tightness detection and the air-inert gas-hydrogen replacement need to be carried out on a hydrogen connecting pipeline in the installation and the disassembly of a tested piece so as to ensure the concentration of hydrogen entering the fuel cell and eliminate the potential safety hazard of hydrogen leakage and hydrogen contact with air.
However, the existing gas supply device is lack of a helium pipeline and a nitrogen replacement pipeline, so that the gas tightness of the connecting pipeline cannot be detected, and the potential safety hazard of pipeline leakage exists; the hydrogen is directly filled and mixed with the air in the connecting pipeline, and the mixed gas enters the testing equipment to be emptied, so that the potential safety hazard of explosion exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical defect who exists among the prior art, and provide a fuel cell test is with air feed terminal device, solved present test and used air feed terminal device to lack inert gas replacement, gas tightness and detect, evacuation function, improve the security that hydrogen supplied with, flexible operation, swift.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
a gas supply terminal device for fuel cell test comprises five groups of gas supply pipelines, namely a hydrogen pipeline, a helium pipeline, a nitrogen pipeline, a compressed air pipeline and an evacuation pipeline; the hydrogen pipeline, the helium pipeline, the nitrogen pipeline and the compressed air pipeline are arranged in parallel, and the hydrogen pipeline, the helium pipeline and the nitrogen pipeline are all connected with the evacuation pipeline.
The hydrogen pipeline is divided into two branches, a first ball valve, a filter, a pressure regulating valve and a second ball valve are sequentially arranged on each branch from the air inlet side to the air outlet side, and a connecting pipe with a third ball valve and a safety valve is sequentially arranged on the pipeline between the pressure regulating valve and the second ball valve in the air flow direction and connected with an emptying pipeline; the pipeline at the air outlet end of the second ball valve is also connected with the emptying pipeline through two spaced positions.
The structure of the helium pipeline is consistent with that of the nitrogen pipeline, a fourth ball valve and a second pressure regulating valve are sequentially arranged along the gas flowing direction, the tail end of the second pressure regulating valve is divided into three branches, the two branches are respectively connected with a fifth ball valve as a gas supply branch, the third branch is divided into two branches, one branch is sequentially connected with a sixth ball valve and a second safety valve, the other branch is connected with a sixth ball valve, and the other ends of the sixth ball valve and the second safety valve are respectively connected with two evacuation pipelines of the evacuation pipeline.
And a check valve is arranged on a branch emptying pipeline connected with the sixth ball valve.
The utility model discloses gas supply terminal device is used in fuel cell test carries out the gas tightness to connecting tube and detects, replaces the air in the connecting tube, and replacement gas does not pass through the direct evacuation of test equipment, has eliminated the potential safety hazard that hydrogen revealed, the explosion.
Drawings
Fig. 1 is a schematic view of a gas supply terminal device for a fuel cell test according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The gas supply terminal device for the fuel cell test comprises five groups of gas supply pipelines, including a hydrogen pipeline, a helium pipeline, a nitrogen pipeline, a compressed air pipeline and an emptying pipeline, wherein the main valves of the hydrogen pipeline are provided with a ball valve, a filter, a pressure regulating valve and a safety valve; the main valves of the helium, nitrogen and compressed air pipelines are provided with ball valves, pressure regulating valves and safety valves; the main valve parts of the emptying pipeline are various ball valves and check valves, so that hydrogen gas backflow caused by different pressures in the gas replacement process is prevented.
As shown in fig. 1, the gas supply terminal device for testing a fuel cell according to the embodiment of the present invention is composed of five groups of gas supply pipelines, which are respectively a hydrogen pipeline, a helium pipeline, a nitrogen pipeline, a compressed air pipeline, and an evacuation pipeline; the hydrogen pipeline, the helium pipeline, the nitrogen pipeline and the compressed air pipeline are arranged in parallel, the hydrogen pipeline, the helium pipeline and the nitrogen pipeline are all connected with the evacuation pipeline, and the compressed air pipeline is arranged independently.
The hydrogen pipeline is divided into two branches, the two branches comprise a first hydrogen branch 14 and a second hydrogen branch 15, the two branches have the same structure, each branch is provided with a first ball valve 1, a filter 3, a pressure regulating valve 4 and a second ball valve 11 in sequence from the air inlet side to the air outlet side, and a connecting pipe 16 with a third ball valve 12 and a safety valve 2 is arranged on the pipeline between the pressure regulating valve and the second ball valve in sequence along the air flow direction and connected with an emptying pipeline; the line at the outlet end of the second ball valve 11 is also connected to the evacuation line at two spaced apart locations. One of these is the position closer to the second ball valve 11, which is provided with a control ball valve 13, and the other is further from the second ball valve and is connected to an emptying line, in particular to the lower emptying line 18, via a line 26 with a ball valve control valve.
The helium pipeline and the nitrogen pipeline have the same structure, taking the nitrogen pipeline as an example, a fourth ball valve 19 and a second pressure regulating valve 20 are sequentially arranged along the gas flowing direction, the tail end of the second pressure regulating valve 20 is divided into three branches, a fifth ball valve (not shown) is respectively connected to the two branches to serve as a gas supply branch 21, a sixth ball valve 23 and a second safety valve 22 are sequentially connected to the third branch 24, the other end of the sixth ball valve 23 is connected to a pipeline with a sixth ball valve 25, and the other ends of the sixth ball valve and the second safety valve are respectively connected to two branch evacuation pipelines (i.e., an upper evacuation pipeline 17 and a lower evacuation pipeline 18 in fig. 1) of the evacuation pipeline.
And a check valve 5 is arranged on a branch emptying pipeline connected with the sixth ball valve.
The compressed air pipeline is sequentially provided with a ball valve and a pressure regulating valve along the air flowing direction, the tail end of the pressure regulating valve is divided into two branches with a ball valve respectively, and one emptying branch pipe with a ball valve is connected.
In the above embodiment, the hydrogen gas may be discharged through a pipeline where the safety valve is located, or the evacuation pipeline connected to the end of the second ball valve may be evacuated through the control ball valve 13, or may be evacuated through a pipeline 26 remote from the second ball valve, and the helium pipeline and the nitrogen pipeline may be discharged through a pipeline where the safety valve is located, or may be evacuated through a pipeline with the sixth ball valve 25.
The utility model discloses gas supply terminating set is used in fuel cell test, its helium pipeline set up a plurality of ball valves, air-vent valve, relief valve, connect the hydrogen pipeline, surveyed a connecting tube, evacuation pipeline, and the pipeline of connecting hydrogen sets up the check valve, prevents because pressure is uneven, causes the hydrogen adverse current, and the gas tightness through the helium pipeline detects the potential safety hazard problem of solving the hydrogen pipeline and revealing.
The utility model discloses gas supply terminating set is used in fuel cell test, its nitrogen gas replacement pipeline set up a plurality of ball valves, air-vent valve, relief valve, connect the hydrogen pipeline, surveyed a connecting tube, evacuation pipeline, and the pipeline of connecting hydrogen sets up the check valve, prevents because pressure is uneven, causes the hydrogen adverse current, has solved the explosion potential safety hazard problem of the direct mixture of hydrogen and air through nitrogen gas replacement pipeline.
The utility model discloses gas supply terminating set is used in fuel cell test, its evacuation pipeline set up a plurality of ball valves, connect hydrogen pipeline, nitrogen pipeline, helium pipeline, end-to-end connection workshop gas discharge pipeline. The communication of each pipeline is completed through the opening and closing of the ball valve, and the problem of direct discharge of mixed gas after replacement is solved.
The utility model discloses gas supply terminal device is used in fuel cell test has solved that present test is with gas supply terminal device lacks inert gas replacement, gas tightness detection, evacuation function, improves the security that hydrogen supplied with, flexible operation, swift.
The utility model discloses gas supply terminal device is used in fuel cell test carries out the gas tightness to connecting tube and detects, replaces the air in the connecting tube, and replacement gas does not pass through the direct evacuation of test equipment, has eliminated the potential safety hazard that hydrogen revealed, the explosion.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (1)
1. A gas supply terminal device for testing a fuel cell is characterized by comprising five groups of gas supply pipelines, namely a hydrogen pipeline, a helium pipeline, a nitrogen pipeline, a compressed air pipeline and an emptying pipeline; the hydrogen pipeline, the helium pipeline, the nitrogen pipeline and the compressed air pipeline are arranged in parallel and are all connected with the evacuation pipeline;
the hydrogen pipeline is divided into two branches, a first ball valve, a filter, a pressure regulating valve and a second ball valve are sequentially arranged on each branch from the air inlet side to the air outlet side, and a connecting pipe with a third ball valve and a safety valve is sequentially arranged on the pipeline between the pressure regulating valve and the second ball valve in the air flow direction and connected with an emptying pipeline; the pipeline at the air outlet end of the second ball valve is also connected with the emptying pipeline through two spaced positions;
the helium pipeline and the nitrogen pipeline have the same structure, a fourth ball valve and a second pressure regulating valve are sequentially arranged along the gas flowing direction, the tail end of the second pressure regulating valve is divided into three branches, the two branches are respectively connected with a fifth ball valve as a gas supply branch, the third branch is divided into two branches, one branch is sequentially connected with a sixth ball valve and a second safety valve, the other branch is connected with a sixth ball valve, and the other ends of the sixth ball valve and the second safety valve are respectively connected with two branch emptying pipelines of the emptying pipeline;
and a check valve is arranged on a branch emptying pipeline connected with the sixth ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123440444.1U CN217130973U (en) | 2021-12-30 | 2021-12-30 | Gas supply terminal device for fuel cell test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123440444.1U CN217130973U (en) | 2021-12-30 | 2021-12-30 | Gas supply terminal device for fuel cell test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217130973U true CN217130973U (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123440444.1U Active CN217130973U (en) | 2021-12-30 | 2021-12-30 | Gas supply terminal device for fuel cell test |
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|---|---|
| CN (1) | CN217130973U (en) |
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2021
- 2021-12-30 CN CN202123440444.1U patent/CN217130973U/en active Active
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