CN113571736A - Gas-liquid separator of fuel cell system - Google Patents
Gas-liquid separator of fuel cell system Download PDFInfo
- Publication number
- CN113571736A CN113571736A CN202010348634.1A CN202010348634A CN113571736A CN 113571736 A CN113571736 A CN 113571736A CN 202010348634 A CN202010348634 A CN 202010348634A CN 113571736 A CN113571736 A CN 113571736A
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- Prior art keywords
- gas
- flow passage
- sub
- liquid separator
- outlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007788 liquid Substances 0.000 title claims abstract description 71
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims description 25
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 74
- 238000000034 method Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
-
- 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 present invention provides a gas-liquid separator of a fuel cell system, the gas-liquid separator of the fuel cell system comprising: a body having a first flow passage and a second flow passage therein, the first flow passage having a first inlet and a first outlet, the second flow passage having a second inlet and a second outlet; and the stop piece is arranged in the body and used for changing the flow direction of the mixed gas flowing out of the first outlet so as to enable the mixed gas to flow into the second flow passage from the second inlet. Therefore, the separation efficiency of the gas-liquid separator can be improved through the cooperation of the first flow channel, the second flow channel and the stop piece, more liquid water can be separated from the mixed gas, and the effect of separating the liquid water in the mixed gas can be improved.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a gas-liquid separator of a fuel cell system.
Background
In the related art, a gas-liquid separator is provided in the fuel cell system, and the gas-liquid separator is used for separating liquid water in the mixed gas from the mixed gas, but the separation efficiency of the gas-liquid separator is low, which results in poor effect of separating the liquid water in the mixed gas.
Disclosure of Invention
In view of the above, the present invention is directed to a gas-liquid separator of a fuel cell system to solve the problem of low separation efficiency of the gas-liquid separator.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a gas-liquid separator of a fuel cell system includes: a body having a first flow passage and a second flow passage therein, the first flow passage having a first inlet and a first outlet, the second flow passage having a second inlet and a second outlet; and the stop piece is arranged in the body and used for changing the flow direction of the mixed gas flowing out of the first outlet so as to enable the mixed gas to flow into the second flow passage from the second inlet.
In some examples of the present invention, the gas-liquid separator of the fuel cell system further includes: and the filtering piece is arranged in the second flow passage.
In some examples of the invention, the first flow channel comprises: the first sub-runner is communicated with the second sub-runner, the free end of the first sub-runner is provided with the first inlet, and the free end of the second sub-runner is provided with the first outlet.
In some examples of the present invention, the first sub flow passage extends in a horizontal direction, and the second sub flow passage extends toward a lower end of the body and is inclined with respect to the first sub flow passage.
In some examples of the present invention, an included angle between the first sub flow channel and the second sub flow channel is an acute angle.
In some examples of the present invention, the second flow passage extends obliquely from a lower end to an upper end of the body.
In some examples of the invention, the second flow passage extends in a direction away from the first flow passage.
In some examples of the invention, the body further has a reservoir in communication with both the first outlet and the second inlet.
In some examples of the invention, the stopper is located within the reservoir, the stopper is located below the first outlet, and the stopper extends at an incline.
In some examples of the invention, the body further has a mixture inlet in communication with the first inlet and a mixture outlet in communication with the second outlet.
Compared with the prior art, the gas-liquid separator of the fuel cell system has the following advantages:
according to the gas-liquid separator of the fuel cell system, the first flow channel, the second flow channel and the stop piece are matched, so that the separation efficiency of the gas-liquid separator can be improved, more liquid water can be separated from the mixed gas, and the effect of separating the liquid water in the mixed gas can be improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic illustration of a gas-liquid separator according to an embodiment of the invention;
FIG. 2 is a cross-sectional view of a gas-liquid separator according to an embodiment of the invention;
FIG. 3 is another schematic angular view of a gas-liquid separator according to an embodiment of the invention.
Reference numerals:
a gas-liquid separator 10;
a body 1;
a first flow channel 11; a first inlet 111; a first outlet 112; a first sub-flow path 113; a second sub-flow passage 114;
a second flow passage 12; a second inlet 121; a second outlet 122;
a mixed gas inlet 13; a mixed gas outlet 14;
a stopper 2; a filter member 3; a water storage tank 4.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, a gas-liquid separator 10 of a fuel cell system according to an embodiment of the invention includes: a body 1 and a stopper 2. The body 1 has a first flow passage 11 and a second flow passage 12 therein, the first flow passage 11 having a first inlet 111 and a first outlet 112, the second flow passage 12 having a second inlet 121 and a second outlet 122. The stopper 2 is disposed in the body 1, and the stopper 2 is used to change the flow direction of the mixture flowing out from the first outlet 112 so that the mixture flows into the second flow path 12 from the second inlet 121.
It should be noted that all hydrogen entering the reactor of the fuel cell system cannot participate in the reaction, and a part of unreacted hydrogen will be mixed with water produced by the reactor reaction to form a mixed gas to be discharged, and the mixed gas will separate most of water in the mixed gas through the gas-liquid separator 10, and then enter the reactor to make the unreacted hydrogen participate in the reaction again.
The gas-liquid separator 10 is arranged at the anode outlet of the pile, when the gas-liquid separator 10 works, the mixed gas flows out from the anode outlet of the pile, then the mixed gas flows into the first flow passage 11 from the first inlet 111 of the first flow passage 11, then the mixed gas flows out from the first outlet 112 of the first flow passage 11, the mixed gas flowing out from the first outlet 112 can blow to the upper surface of the stop piece 2, under the stop action of the stop piece 2, the flow direction of the mixed gas can be changed, the mixed gas flows into the second flow passage 12 from the second inlet 121, and finally the mixed gas flows out of the second flow passage 12 from the second outlet 122 of the second flow passage 12. Wherein, compared with the prior art, the total length of first runner 11 and second runner 12 of this application is longer, the in-process that the gas mixture flows in first runner 11 and second runner 12, liquid water in the gas mixture gradually with gas separation, because the total length of first runner 11 and second runner 12 is longer, can make the gas mixture flow time lengthen in first runner 11 and second runner 12, can promote the separation efficiency of vapour and liquid separator 10 to can make more liquid water separate out from the gas mixture, and then can promote the effect of the liquid water in the separation gas mixture.
Therefore, the first flow channel 11, the second flow channel 12 and the stopper 2 are matched, so that the separation efficiency of the gas-liquid separator 10 can be improved, more liquid water can be separated from the mixed gas, and the effect of separating the liquid water in the mixed gas can be improved.
In some embodiments of the present invention, as shown in fig. 2, the gas-liquid separator 10 may further include: filter 3, filter 3 and can set up in second flow path 12, wherein, filter 3 and be used for gas-liquid separation, filter 3 and can set up to the filter screen, flow in second flow path 12 when filtering 3 when the gas mixture, filter 3 and can follow the gas mixture with the liquid water separation in the gas mixture, can further promote the separation efficiency of vapour and liquid separator 10, thereby can make more liquid water follow the gas mixture and separate out, and then can promote vapour and liquid separator 10's working property.
In some embodiments of the present invention, as shown in fig. 2, the first flow passage 11 may include: the gas-liquid separator comprises a first sub-flow passage 113 and a second sub-flow passage 114, wherein the first sub-flow passage 113 is communicated with the second sub-flow passage 114, a first inlet 111 is formed at the free end of the first sub-flow passage 113, a first outlet 112 is formed at the free end of the second sub-flow passage 114, mixed gas flows out from an anode outlet of a galvanic pile, then the mixed gas flows into the first sub-flow passage 113 from the first inlet 111, then the mixed gas flows into the second sub-flow passage 114 from the first sub-flow passage 113, and then the mixed gas flows out of the first flow passage 11 from the first outlet 112.
In some embodiments of the present invention, as shown in fig. 2, the first sub-flow passage 113 may extend in a horizontal direction, and it should be noted that the horizontal direction refers to a horizontal plane in which the left and right directions in fig. 2 are located, the first sub-flow passage 113 may be parallel to the horizontal direction or substantially parallel to the horizontal direction, the second sub-flow passage 114 extends toward the lower end of the body 1, and the second sub-flow passage 114 is disposed obliquely with respect to the first sub-flow passage 113, so that the first outlet 112 is disposed at the lower end of the second sub-flow passage 114, when the mixed gas flows into the second sub-flow passage 114 from the first sub-flow passage 113, the mixed gas flows downward along the obliquely disposed second sub-flow passage 114, and under the gravity of the mixed gas, the gas and a part of the liquid water in the mixed gas may be separated, so that the separation efficiency of the gas-liquid separator 10 may be further improved. Note that, as shown in fig. 2, the upper surface of the bottom wall of the first sub flow path 113 is arranged to extend obliquely downward with respect to the horizontal plane.
In some embodiments of the present invention, as shown in fig. 2, an included angle between the first sub-flow passage 113 and the second sub-flow passage 114 may be set to be an acute angle, when the mixed gas flows into the second sub-flow passage 114 from the first sub-flow passage 113 and the second sub-flow passage 114, a flow direction of the mixed gas may be changed, a flow time of the mixed gas in the first flow passage 11 may be increased, and after the mixed gas flows into the second sub-flow passage 114, the mixed gas may smoothly flow in the second sub-flow passage 114, a flow time of the mixed gas in the first flow passage 11 may be further increased, so that the gas and a part of the liquid water in the mixed gas may be better separated.
In some embodiments of the present invention, as shown in fig. 2, the second flow channel 12 extends obliquely from the lower end to the upper end of the body 1. Wherein, from the lower extreme of body 1 to upper end direction, second runner 12 extends the arrangement from the lower extreme slope right, the gas mixture that flows out from first runner 11 makes the gas mixture upwards flow into second runner 12 under the backstop effect of stopper 2, the gas mixture flows to the upper end of second runner 12 from the lower extreme of second runner 12, in the gas mixture flow in-process, under the action of the gravity of gas mixture, help liquid water and the gas separation in the gas mixture, can further promote the separation efficiency of vapour and liquid separator 10, and, through the oblique extension arrangement of second runner 12, can make the liquid water of separating slowly flow downwards, can avoid liquid water and the gas of separating to mix again.
In some embodiments of the present invention, as shown in fig. 2, the second flow channel 12 extends from the lower end to the upper end of the body 1 to a direction away from the first flow channel 11, so that the second flow channel 12 and the first flow channel 11 can be prevented from interfering with each other, and the arrangement position of the second flow channel 12 and the first flow channel 11 can be more reasonable.
In some embodiments of the present invention, as shown in fig. 2, the body 1 may further have a water storage tank 4, and the water storage tank 4 is communicated with both the first outlet 112 and the second inlet 121. Wherein, the mixed gas is separated from part of the liquid water in the flowing process of the first flow channel 11, and then the separated liquid water flows into the water storage tank 4, so that the separated liquid water can be prevented from being mixed with the gas. In addition, part of the liquid water is separated from the gas mixture during the flowing process of the gas mixture in the second flow passage 12, and then the separated liquid water flows into the water storage tank 4 along the second flow passage 12, so that the separated liquid water can be prevented from being mixed with the gas.
In some embodiments of the present invention, as shown in fig. 2, the stopper 2 may be positioned in the reservoir 4, the stopper 2 may be positioned below the first outlet 112, one end of the stopper 2 is connected to the body 1, a free end of the stopper 2 may extend below a portion of the second inlet 121, and, as shown in fig. 2, the stopper 2 may be obliquely and downwardly extended in a left-to-right direction, liquid water flowing from the first flow passage 11 may flow to an upper surface of the stopper 2, and then the separated liquid water may flow into the reservoir 4 along the obliquely positioned stopper 2.
In some embodiments of the present invention, as shown in fig. 1, the body 1 may further have a mixed gas inlet 13 and a mixed gas outlet 14, the mixed gas inlet 13 is communicated with the first inlet 111, and the mixed gas outlet 14 is communicated with the second outlet 122, wherein after the mixed gas flows out from the anode outlet of the stack, the mixed gas flows into the first inlet 111 through the mixed gas inlet 13, and after the mixed gas flows into the second flow channel 12, the mixed gas can flow from the second outlet 122 to the mixed gas outlet 14, so that the gas flows out of the gas-liquid separator 10 through the mixed gas outlet 14, and the mixed gas can circulate in the gas-liquid separator 10.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A gas-liquid separator (10) of a fuel cell system, characterized by comprising:
a body (1), a first flow passage (11) and a second flow passage (12) are arranged in the body (1), the first flow passage (11) is provided with a first inlet (111) and a first outlet (112), and the second flow passage (12) is provided with a second inlet (121) and a second outlet (122);
the stop piece (2) is arranged in the body (1), and the stop piece (2) is used for changing the flow direction of the mixed gas flowing out of the first outlet (112) so as to enable the mixed gas to flow into the second flow channel (12) from the second inlet (121).
2. The gas-liquid separator (10) of a fuel cell system according to claim 1, further comprising: and the filtering piece (3) is arranged in the second flow channel (12).
3. The gas-liquid separator (10) of a fuel cell system according to claim 1, wherein the first flow passage (11) includes: the flow channel structure comprises a first sub-flow channel (113) and a second sub-flow channel (114), wherein the first sub-flow channel (113) is communicated with the second sub-flow channel (114), a first inlet (111) is formed in the free end of the first sub-flow channel (113), and a first outlet (112) is formed in the free end of the second sub-flow channel (114).
4. The gas-liquid separator (10) of a fuel cell system according to claim 3, wherein the first sub-flow passage (113) extends in a horizontal direction, and the second sub-flow passage (114) extends toward a lower end of the body (1) and is inclined with respect to the first sub-flow passage (113).
5. The gas-liquid separator (10) of a fuel cell system according to claim 4, wherein an included angle between the first sub-flow passage (113) and the second sub-flow passage (114) is an acute angle.
6. The gas-liquid separator (10) of a fuel cell system according to claim 1, wherein the second flow passage (12) extends obliquely from a lower end to an upper end of the body (1).
7. The gas-liquid separator (10) of a fuel cell system according to claim 6, wherein the second flow passage (12) extends toward a direction away from the first flow passage (11).
8. The gas-liquid separator (10) of a fuel cell system according to claim 1, wherein the body (1) further has a water storage tank (4), and the water storage tank (4) communicates with both the first outlet (112) and the second inlet (121).
9. The gas-liquid separator (10) of a fuel cell system according to claim 1 or 8, wherein the stopper (2) is located within the water storage tank (4), the stopper (2) is located below the first outlet (112), and the stopper (2) extends obliquely.
10. The gas-liquid separator (10) of a fuel cell system according to claim 1, wherein the body (1) further has a mixture inlet (13) and a mixture outlet (14), the mixture inlet (13) communicating with the first inlet (111), the mixture outlet (14) communicating with the second outlet (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010348634.1A CN113571736A (en) | 2020-04-28 | 2020-04-28 | Gas-liquid separator of fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010348634.1A CN113571736A (en) | 2020-04-28 | 2020-04-28 | Gas-liquid separator of fuel cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113571736A true CN113571736A (en) | 2021-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010348634.1A Pending CN113571736A (en) | 2020-04-28 | 2020-04-28 | Gas-liquid separator of fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113571736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171757A (en) * | 2021-11-30 | 2022-03-11 | 中汽创智科技有限公司 | Gas-liquid separator and fuel cell system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926711A (en) * | 2004-03-02 | 2007-03-07 | 丰田自动车株式会社 | Fuel cell system |
| US20160126568A1 (en) * | 2014-10-31 | 2016-05-05 | Toyota Boshoku Kabushiki Kaisha | Gas-liquid separator for fuel cell |
| US20180375123A1 (en) * | 2017-06-22 | 2018-12-27 | Honda Motor Co., Ltd. | Gas-liquid separator |
| WO2019105656A1 (en) * | 2017-11-28 | 2019-06-06 | Robert Bosch Gmbh | Gas-liquid separator for separating at least one liquid component from a gaseous component |
-
2020
- 2020-04-28 CN CN202010348634.1A patent/CN113571736A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926711A (en) * | 2004-03-02 | 2007-03-07 | 丰田自动车株式会社 | Fuel cell system |
| US20160126568A1 (en) * | 2014-10-31 | 2016-05-05 | Toyota Boshoku Kabushiki Kaisha | Gas-liquid separator for fuel cell |
| US20180375123A1 (en) * | 2017-06-22 | 2018-12-27 | Honda Motor Co., Ltd. | Gas-liquid separator |
| WO2019105656A1 (en) * | 2017-11-28 | 2019-06-06 | Robert Bosch Gmbh | Gas-liquid separator for separating at least one liquid component from a gaseous component |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171757A (en) * | 2021-11-30 | 2022-03-11 | 中汽创智科技有限公司 | Gas-liquid separator and fuel cell system |
| CN114171757B (en) * | 2021-11-30 | 2023-07-21 | 中汽创智科技有限公司 | Gas-liquid separator and fuel cell system |
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Application publication date: 20211029 |
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