CN215680732U - Independent sealing structure of fuel cell - Google Patents
Independent sealing structure of fuel cell Download PDFInfo
- Publication number
- CN215680732U CN215680732U CN202121714916.5U CN202121714916U CN215680732U CN 215680732 U CN215680732 U CN 215680732U CN 202121714916 U CN202121714916 U CN 202121714916U CN 215680732 U CN215680732 U CN 215680732U
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- Prior art keywords
- air
- water
- face
- hydrogen
- sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 96
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000001257 hydrogen Substances 0.000 claims abstract description 56
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 56
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 76
- 239000002352 surface water Substances 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model relates to an independent sealing structure of a fuel cell, which comprises an air/hydrogen face double-sealing structure and a water face double-sealing structure, wherein the air/hydrogen face double-sealing structure comprises an air face air sealing groove, an air face hydrogen sealing groove and an air face water sealing groove which are mutually independent and separated, and the water face double-sealing structure comprises a water face sealing groove, a water face air sealing groove and a water face hydrogen sealing groove which are mutually independent and separated. Compared with the prior art, the utility model has the advantages that the double-layer seal is arranged between the channels, so that the seals between the channels are mutually independent, the phenomenon of gas leakage and leakage between the channels is avoided, and the safety performance of the galvanic pile is greatly improved.
Description
Technical Field
The utility model relates to the technical field of fuel cell sealing, in particular to an independent sealing structure of a fuel cell.
Background
The fuel cell stack is formed by stacking and combining a plurality of single cells in series. When the electrodes of the single batteries are connected, strict sealing is needed, hydrogen leakage can be caused due to poor sealing, the utilization rate of hydrogen is reduced, the efficiency of the fuel battery is influenced, and the service life of the battery is influenced due to the fact that the battery cannot work in severe cases. The high-pressure high-power density fuel cell has the characteristic of high gas production pressure, so the requirement on gas sealing is stricter.
From the sealing structure, the proton exchange membrane fuel cell is of a multilayer structure, each layer comprises a substance conveying flow channel capable of independently performing electrochemical reaction, in order to prevent reactant hydrogen, air and cooling liquid from leaking, a corresponding sealing structure is designed between layers, and the reliability of the sealing structure directly determines the service life of the fuel cell. At present, the sealing between the channels of the fuel cell is mostly provided with only one layer of sealing gasket, namely a single sealing structure, as shown in fig. 1, single sealing is realized only through an air surface sealing groove (shown by a reference numeral 5 in fig. 1), and once the sealing gasket is damaged, the phenomenon of mutual gas cross occurs between the channels, so that a medium of a certain channel leaks into another adjacent channel, and the performance and the safety of the electric pile are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an independent sealing structure of a fuel cell, so as to realize independent sealing among channels and improve the safety performance of a stack.
The purpose of the utility model can be realized by the following technical scheme: the utility model provides an independent seal structure of fuel cell, includes air/hydrogen face double containment structure and surface of water double containment structure, air/hydrogen face double containment structure includes air face air seal groove, air face hydrogen seal groove and the air face water seal groove that mutually independent separation set up, surface of water double containment structure includes surface of water seal groove, surface of water air seal groove and the surface of water hydrogen seal groove that mutually independent separation set up.
Further, the air surface air sealing groove is arranged on the periphery of the two air channels on the air/hydrogen surface polar plate, and the two air channels on the air/hydrogen surface polar plate are connected through the air flow channel.
Further, the air flow channel is located in the air surface air sealing groove.
Further, the air surface hydrogen sealing groove is arranged on the periphery of the hydrogen channel on the air/hydrogen surface polar plate.
Further, the air surface water sealing groove is arranged on the periphery of the water channel on the air/hydrogen surface polar plate.
Further, the water surface sealing groove is formed in the peripheries of the two water channels on the water surface pole plate, and the two water channels on the water surface pole plate are connected through the water flow channel.
Further, the water flow channel is located in the water surface sealing groove.
Further, the surface of water air seal groove sets up the periphery in surface of water polar plate air duct.
Further, the water surface hydrogen sealing groove is formed in the periphery of the hydrogen channel on the water surface polar plate.
Further, the air surface air sealing groove, the air surface hydrogen sealing groove, the air surface water sealing groove, the water surface air sealing groove and the water surface hydrogen sealing groove are filled with sealant or provided with sealing gaskets.
Compared with the prior art, the air/hydrogen face double-sealing structure and the water surface double-sealing structure are arranged, wherein the air/hydrogen face double-sealing structure comprises an air face air sealing groove, an air face hydrogen sealing groove and an air face water sealing groove which are mutually independent and separated, and the water surface double-sealing structure comprises a water surface sealing groove, a water surface air sealing groove and a water surface hydrogen sealing groove which are mutually independent and separated, so that double-layer sealing is arranged among channels, mutual independence of sealing among the channels is realized, even if the sealing of a certain channel is damaged, a medium of the channel cannot leak into the adjacent channel, mutual air leakage among the channels is avoided, and the safety performance of the electric pile is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a conventional single seal;
FIG. 2 is a schematic view of an air/hydrogen face double-sealing structure in the embodiment;
FIG. 3 is a schematic diagram of a water surface double-sealing structure in the embodiment;
wherein: 1. hydrogen passageway, 2, water passageway, 3, air passageway, 4, polar plate, 5, air face seal groove, 6, air runner, 7, air face air seal groove, 8, air face hydrogen seal groove, 9, air face water seal groove, 10, water runner, 11, surface of water seal groove, 12, surface of water air seal groove, 13, surface of water hydrogen seal groove.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
Example (b):
an independent sealing structure of a fuel cell comprises an air/hydrogen face double sealing structure and a water face double sealing structure, as shown in fig. 2, the air/hydrogen face double sealing structure comprises an air face air sealing groove 7, an air face hydrogen sealing groove 8 and an air face water sealing groove 9 which are independently and separately arranged, wherein the air face air sealing groove 7 is arranged at the periphery of two air channels 3 on an air/hydrogen face polar plate 4, the two air channels 3 on the air/hydrogen face polar plate 4 are connected through an air flow channel 6, and the air flow channel 6 is also positioned in the air face air sealing groove 7;
the air surface hydrogen sealing groove 8 is arranged at the periphery of the hydrogen channel 1 on the air/hydrogen surface polar plate 4;
the air surface water seal groove 9 is arranged at the periphery of the water channel 2 on the air/hydrogen surface polar plate 4.
As shown in fig. 3, the water surface double-sealing structure includes a water surface sealing groove 11, a water surface air sealing groove 12 and a water surface hydrogen sealing groove 13 which are separately arranged, wherein the water surface sealing groove 11 is arranged at the periphery of two water channels 2 on the water surface polar plate, the two water channels 2 on the water surface polar plate are connected through a water flow channel 10, and the water flow channel 10 is also located in the water surface sealing groove 11;
the water surface air sealing groove 12 is arranged at the periphery of the air channel 3 on the water surface polar plate;
the water surface hydrogen sealing groove 13 is arranged on the periphery of the hydrogen channel 1 on the water surface polar plate.
In practical application, the air surface air sealing groove 7, the air surface hydrogen sealing groove 8, the air surface water sealing groove 9, the water surface sealing groove 11, the water surface air sealing groove 12 and the water surface hydrogen sealing groove 13 are filled with sealant or provided with sealing gaskets.
Based on above-mentioned technical scheme, through set up the double-deck sealed of mutually independent separation between hydrogen passageway, water passageway and air passage for sealed mutually independent between each passageway, because sealed mutually independent between each passageway, even there is a channel seal to damage, the medium of this passageway also can not leak to in another adjacent passageway, has just also avoided taking place danger.
Claims (10)
1. The utility model provides an independent seal structure of fuel cell, its characterized in that includes air/hydrogen face double containment structure and surface of water double containment structure, air/hydrogen face double containment structure includes air face air seal groove (7), air face hydrogen seal groove (8) and air face water seal groove (9) that mutually independent separation set up, surface of water double containment structure includes surface of water seal groove (11), surface of water air seal groove (12) and surface of water hydrogen seal groove (13) that mutually independent separation set up.
2. The fuel cell independent sealing structure according to claim 1, wherein the air face air sealing groove (7) is arranged at the periphery of two air channels (3) on the air/hydrogen face plate (4), and the two air channels (3) on the air/hydrogen face plate (4) are connected through the air flow channel (6).
3. A fuel cell independent seal structure according to claim 2, characterized in that said air flow channel (6) is located in an air face air seal groove (7).
4. A fuel cell independent sealing structure according to claim 1, wherein said air-face hydrogen sealing groove (8) is provided on the periphery of the hydrogen gas passage (1) on the air/hydrogen-face plate (4).
5. A fuel cell independent sealing structure according to claim 1, wherein said air face water seal groove (9) is provided in the periphery of the water passage (2) in the air/hydrogen face plate (4).
6. The independent sealing structure of the fuel cell according to claim 1, wherein the water surface sealing groove (11) is arranged at the periphery of the two water channels (2) on the water surface polar plate, and the two water channels (2) on the water surface polar plate are connected through the water flow channel (10).
7. A fuel cell independent sealing structure according to claim 6, characterized in that said water flow path (10) is located in a water surface sealing groove (11).
8. A fuel cell independent sealing structure according to claim 1, wherein the water surface air sealing groove (12) is provided in the periphery of the air passage (3) in the water surface plate.
9. The independent sealing structure of the fuel cell according to claim 1, wherein the water surface hydrogen sealing groove (13) is provided at the periphery of the hydrogen channel (1) on the water surface polar plate.
10. The fuel cell independent seal structure of claim 1, wherein the air-face air seal groove (7), the air-face hydrogen seal groove (8), the air-face water seal groove (9), the water-face seal groove (11), the water-face air seal groove (12) and the water-face hydrogen seal groove (13) are filled with a sealant or provided with a sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121714916.5U CN215680732U (en) | 2021-07-27 | 2021-07-27 | Independent sealing structure of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121714916.5U CN215680732U (en) | 2021-07-27 | 2021-07-27 | Independent sealing structure of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215680732U true CN215680732U (en) | 2022-01-28 |
Family
ID=79980634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121714916.5U Active CN215680732U (en) | 2021-07-27 | 2021-07-27 | Independent sealing structure of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215680732U (en) |
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2021
- 2021-07-27 CN CN202121714916.5U patent/CN215680732U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220413 Address after: 200000 room 718, No. 1256 and 1258, Wanrong Road, Jing'an District, Shanghai Patentee after: Grey house (Shanghai) Technology Development Co.,Ltd. Address before: 20120106 China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai Patentee before: Shanghai Everpower Technologies Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231110 Address after: Room 518, No. 1155 Jinhu Road, Pudong New Area, Shanghai, June 2012 Patentee after: Hydrogen Xinward (Shanghai) New Energy Development Co.,Ltd. Address before: 200000 room 718, No. 1256 and 1258, Wanrong Road, Jing'an District, Shanghai Patentee before: Grey house (Shanghai) Technology Development Co.,Ltd. |
|
| TR01 | Transfer of patent right |