CN211477521U - Fuel cell stack gas tightness detection device - Google Patents
Fuel cell stack gas tightness detection device Download PDFInfo
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- CN211477521U CN211477521U CN201921204330.7U CN201921204330U CN211477521U CN 211477521 U CN211477521 U CN 211477521U CN 201921204330 U CN201921204330 U CN 201921204330U CN 211477521 U CN211477521 U CN 211477521U
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- fuel cell
- cell stack
- detection device
- gas tightness
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Abstract
The utility model provides a fuel cell pile gas tightness detection device. The utility model discloses a fuel cell pile gas tightness detection device includes transparent shell, hydrogen storage tank and brings the coating of colour change after reacting with the hydrogen contact, and the transparent shell cover is established outside the fuel cell pile, and the coating setting is in on the inside wall of transparent shell, the hydrogen storage tank passes through the air inlet intercommunication on pipeline and the fuel cell pile, and the gas outlet on the fuel cell pile is closed. The utility model discloses a fuel cell galvanic pile gas tightness detection device detects fuel cell galvanic pile gas tightness, utilizes hydrogen and copper oxide reaction colour to distinguish, can the short-term test out the position that the fuel cell galvanic pile leaks outward, and the device is light, easy operation practices thrift cost and leak hunting time in a large number.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a fuel cell pile gas tightness detection device.
Background
With the explosive development of the hydrogen fuel cell industry, the demand of the corresponding fuel cell stack is continuously increased, and more enterprises are put into the research and development of the fuel cell stack. The hydrogen fuel cell has certain potential safety hazard due to the characteristics of hydrogen gas such as leakage, diffusivity, explosiveness and the like, and the safety of the hydrogen fuel cell becomes a primary problem. Therefore, in order to ensure safety, the fuel cell stack is a key part for detecting the air tightness when being assembled.
In order to ensure the smooth performance of the electric pile test, the electric pile must be subjected to the whole pile leakage test before the test, at present, because the standard and the detection method are diversified, the research on the electric pile is less, the detection quality of each enterprise is inconsistent, and the output of the electric pile performance is influenced.
The method for detecting the leakage of the galvanic pile in the prior art is to place the galvanic pile in deionized water, introduce gas for pressure maintaining and observe whether bubbles emerge. The defects of the prior art are as follows: the galvanic pile is placed in deionized water equipment, absolute cleanness of a water source cannot be guaranteed, and performance output of the galvanic pile can be influenced if impurities exist; for large-scale galvanic piles, the placing of the galvanic piles in the deionization device is complicated, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a distinguish regional fuel cell pile gas tightness detection device that leaks fast.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a fuel cell pile gas tightness detection device, includes transparent shell, hydrogen storage tank and brings the coating of colour change after reacting with the hydrogen contact, transparent shell cover is established outside the fuel cell pile, the coating sets up on the inside wall of transparent shell, the hydrogen storage tank pass through the pipeline with air inlet intercommunication on the fuel cell pile, just gas outlet on the fuel cell pile is closed.
Preferably, the coating is a copper oxide coating, and the detection device further comprises a heating device for heating air in the transparent shell.
Preferably, the heating device comprises a resistance wire, the resistance wire is arranged on the inner wall of the transparent shell, and the resistance wire is electrically connected with an external power supply through a circuit.
Preferably, the heating device comprises a heating pipe, the heating pipe is placed in the cavity of the transparent shell, and the heating pipe is electrically connected with an external power supply through a circuit.
Preferably, the transparent shell is a cuboid, and the peripheral side walls of the transparent shell correspond to the side walls of the fuel cell stacks one by one.
Preferably, the bottom end of the transparent shell is open, and the transparent shell is covered outside the fuel cell stack by the open end and forms a closed space.
Preferably, an air inlet on the fuel cell stack is communicated with the outside of the transparent shell through a pipeline, and a valve is arranged on a pipeline section positioned outside the transparent shell.
Preferably, the top end of the transparent shell is provided with a through hole communicated with the inside of the transparent shell, and the air inlet on the fuel cell stack is positioned below the through hole and communicated with the through hole.
Preferably, a pressure gauge for detecting the pressure of the air inlet of the fuel cell stack is further arranged on a pipeline between the valve and the air inlet.
The utility model discloses a fuel cell pile gas tightness detection device fills hydrogen to the fuel cell pile through storing up the hydrogen jar, after the air inlet and the gas outlet of closing the fuel cell pile, under the circumstances that the fuel cell pile is lost heart, the reaction colour of hydrogen and coating changes, can distinguish the position that the fuel cell pile leaks outward fast, the utility model discloses a device is light, and is simple, but reuse can practice thrift detection cost and leak hunting time in a large number.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
The notation in the figure is:
1. a transparent housing; 2. a hydrogen storage tank; 3. coating; 4. a fuel cell stack; 5. an air inlet; 6. an air outlet; 7. a heating device; 71. a resistance wire; 72. heating a tube; 8. an external power supply; 9. a valve; 10. a pressure gauge; 11. and a through hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment 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 utility model discloses a fuel cell galvanic pile gas tightness detection device, including transparent shell 1, hydrogen storage tank 2 and bring the coating 3 of colour change after reacting with the hydrogen contact, transparent shell 1 covers and establishes outside fuel cell galvanic pile 4, and coating 3 sets up on transparent shell 1's inside wall, and hydrogen storage tank 2 passes through the pipeline and communicates with air inlet 5 on the fuel cell galvanic pile 4, and gas outlet 6 on the fuel cell galvanic pile 4 is closed.
The utility model discloses a fuel cell pile gas tightness detection device fills hydrogen to fuel cell pile 4 through hydrogen storage tank 2, after air inlet 5 and the gas outlet 6 of closing fuel cell pile 4, under the circumstances that fuel cell pile 4 loses heart, hydrogen and coating 3's reaction colour change, can distinguish the position that fuel cell pile 4 leaks outward fast, the utility model discloses a device is light, and is simple, but reuse can practice thrift in a large number and detect cost and leak hunting time.
The material of the coating 3 can be various, and is not limited herein, in this embodiment, the coating 3 can be a copper oxide coating, and the detection device can further include a heating device 7 for heating the air in the transparent housing 1. The heating device 7 can heat the air in the transparent shell 1 to a certain temperature by connecting with an external power supply 8, and provides a temperature condition for the chemical reaction of the hydrogen and the copper oxide coating 3.
The structure of the heating device 7 is various, and is not limited here, in embodiment 1, the heating device 7 may include a resistance wire 71, the resistance wire 71 is disposed on the inner wall of the transparent casing 1, the resistance wire 71 is connected with the external power supply 8 through a circuit, and the circuit is a circuit capable of realizing the function in the prior art.
As shown in fig. 2, in embodiment 2, the heating device 7 may include a heating tube 72, the heating tube 72 is disposed in the cavity of the transparent housing 1, and the heating tube 72 is connected to the external power source 8 through a circuit, which is a circuit capable of achieving the function in the prior art.
The shape of the transparent shell 1 is various, and is not limited here, the fuel cell stack 4 is generally a cuboid, for better being convenient for observing the leakage condition of the fuel cell stack 4, the transparent shell 1 can be a cuboid, and the peripheral side walls of the transparent shell are in one-to-one correspondence with the side walls of the fuel cell stack 4. This facilitates the color change of the coating 3 inside the transparent casing 1 to correspond to the side wall of the fuel cell stack 4.
In order to cover the transparent shell 1 outside the fuel cell stack 4 conveniently, the bottom end of the transparent shell 1 can be open, and the transparent shell 1 covers the fuel cell stack 4 through the open and forms a closed space with the plane for placing the fuel cell stack 4.
The gas inlet 5 of the fuel cell stack 4 can be communicated with the outside of the transparent shell 1 through a pipeline, and a valve 9 can be arranged on the pipeline section outside the transparent shell 1. The flow of the hydrogen storage bottle can be adjusted by adjusting the opening and closing degree of the valve 9, and the pipeline can be closed by the valve 9 after the fuel cell stack 4 is aerated.
The top end of the transparent shell 1 can be provided with a through hole 11 communicated with the inside of the transparent shell, and the air inlet 5 on the fuel cell stack 4 is positioned below the through hole 11 and is communicated with the through hole 11. Thus, the pipeline of the hydrogen storage tank 2 passes through the top through hole 11 of the transparent shell 1 to be tightly connected with the air inlet 5 of the fuel cell stack 4 in the transparent shell 1.
A pressure gauge 10 for detecting the pressure of the gas inlet 5 of the fuel cell stack 4 can be arranged on a pipeline between the valve 9 and the gas inlet 5. The pressure value at the gas inlet 5 of the fuel cell stack 4 can be measured by a value indicated by the pressure gauge 10.
The utility model discloses a fuel cell pile gas tightness detection device's test procedure includes following step:
1) firstly, coating a copper oxide coating 3 on the inner side wall of a transparent shell 1, then covering the transparent shell 1 outside a fuel cell stack 4 to be detected, adjusting the position of the transparent shell 1 to enable the peripheral side walls of the transparent shell to correspond to the side walls of the fuel cell stack 4 one by one, enabling a through hole 11 at the top end of the transparent shell to be communicated with an air inlet 5 of the fuel cell stack 4, and enabling an air pipe of a hydrogen storage tank 2 to pass through the through hole 11 to be communicated with the air inlet 5 of the fuel cell stack 4 to be detected through a pipeline;
2) opening an air inlet 5 of a fuel cell stack 4, closing an air outlet 6 of the fuel cell stack 4, then opening a valve 9 of a hydrogen storage tank 2, wherein hydrogen flows into a cavity through the air inlet 5 of the fuel cell stack 4, closing the air inlet 5 and closing the valve 9 of the hydrogen storage tank 2 when the pressure of an air port is stable and reaches 100kpa, so that the pressure is maintained at 100 kpa;
3) simultaneously, an external power supply 8 of a heating device 7 is turned on to heat the air in the transparent shell 1 sleeved outside the fuel cell stack 4, so that the temperature of the air in the transparent shell 1 reaches 200 ℃;
4) the leakage condition of the galvanic pile is judged by observing the area of the transparent shell 1, which is firstly subjected to color change, and marking the area and the value of the pressure gauge 10:
a. if the numerical value of the pressure gauge 10 is not reduced and the color change of the coating 3 is not changed, the integral pressure maintaining of the galvanic pile is qualified, the galvanic pile does not leak, and the galvanic pile can be subjected to normal performance test;
b. if the numerical value of the pressure gauge 10 is reduced and the color of the area of the copper oxide coating 3 on the inner side of the transparent shell 1 is changed, a pile leakage point is arranged on one side of the fuel cell pile 4 corresponding to the area which is firstly changed in color;
c. if the value of the pressure gauge 10 is reduced, but the area of the copper oxide coating 3 on the inner side of the transparent shell 1 has no color change, the leakage is shown at the pipeline interface.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a fuel cell galvanic pile gas tightness detection device, its characterized in that, bring color change's coating (3) including transparent shell (1), hydrogen storage tank (2) and after reacting with hydrogen contact, transparent shell (1) cover is established outside fuel cell galvanic pile (4), coating (3) set up on the inside wall of transparent shell (1), hydrogen storage tank (2) through the pipeline with air inlet (5) intercommunication on fuel cell galvanic pile (4), just gas outlet (6) on fuel cell galvanic pile (4) are closed.
2. A fuel cell stack gas tightness test device according to claim 1, wherein said coating (3) is a copper oxide coating, and said test device further comprises a heating device (7) for heating the air in said transparent casing (1).
3. The fuel cell stack airtightness detection apparatus according to claim 2, wherein the heating means (7) includes a resistance wire (71), the resistance wire (71) is provided on an inner wall of the transparent outer casing (1), and the resistance wire (71) is connected to an external power supply (8) through an electric circuit.
4. The fuel cell stack gas tightness detection device according to claim 2, wherein the heating device (7) comprises a heating pipe (72), the heating pipe (72) is placed in the cavity of the transparent outer casing (1), and the heating pipe (72) is connected with an external power supply (8) through a circuit.
5. A fuel cell stack gas tightness detection device according to any one of claims 1 to 3, characterized in that the transparent casing (1) is a cuboid, and the peripheral side walls thereof correspond to the side walls of the fuel cell stack (4) one by one.
6. The fuel cell stack gas tightness detection device according to claim 4, wherein a bottom end of the transparent housing (1) is open, the transparent housing (1) is covered outside the fuel cell stack (4) by the open end, and forms a closed space with a plane on which the fuel cell stack (4) is placed.
7. A fuel cell stack gas tightness detection device according to any one of claims 1 to 3, wherein the gas inlet (5) of the fuel cell stack (4) is communicated with the outside of the transparent casing (1) through a pipeline, and a valve (9) is arranged on a pipeline section positioned outside the transparent casing (1).
8. The fuel cell stack airtightness detection apparatus according to claim 7, wherein the top end of the transparent casing (1) is provided with a through hole (11) communicating with the inside thereof, and the air inlet (5) of the fuel cell stack (4) is located below the through hole (11) and communicates with the through hole (11).
9. The fuel cell stack gas tightness detection device according to claim 7, wherein a pressure gauge (10) for detecting the pressure of the gas inlet (5) of the fuel cell stack (4) is further provided on a pipe section between the valve (9) and the gas inlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204330.7U CN211477521U (en) | 2019-07-29 | 2019-07-29 | Fuel cell stack gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204330.7U CN211477521U (en) | 2019-07-29 | 2019-07-29 | Fuel cell stack gas tightness detection device |
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| CN211477521U true CN211477521U (en) | 2020-09-11 |
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| CN201921204330.7U Active CN211477521U (en) | 2019-07-29 | 2019-07-29 | Fuel cell stack gas tightness detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064739A (en) * | 2022-07-28 | 2022-09-16 | 浙江海盐力源环保科技股份有限公司 | Quick detection device of fuel cell stack gas supply volume |
-
2019
- 2019-07-29 CN CN201921204330.7U patent/CN211477521U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064739A (en) * | 2022-07-28 | 2022-09-16 | 浙江海盐力源环保科技股份有限公司 | Quick detection device of fuel cell stack gas supply volume |
| CN115064739B (en) * | 2022-07-28 | 2022-11-04 | 浙江海盐力源环保科技股份有限公司 | Quick detection device of fuel cell stack gas supply volume |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230620 Address after: 430000 Building 1, No. 99, Weilai Third Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Grove Hydrogen Energy Technology Group Co.,Ltd. Address before: Room 409-6, 4th floor, building a, overseas talents building, future science and Technology City, 999 Gaoxin Avenue, Wuhan Free Trade Zone, 430205, Hubei Province Patentee before: Wuhan central Hydrogen Energy Industry Innovation Center Co.,Ltd. |
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| TR01 | Transfer of patent right |