CN217334153U - Fuel cell anode water management system - Google Patents
Fuel cell anode water management system Download PDFInfo
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- CN217334153U CN217334153U CN202122887897.2U CN202122887897U CN217334153U CN 217334153 U CN217334153 U CN 217334153U CN 202122887897 U CN202122887897 U CN 202122887897U CN 217334153 U CN217334153 U CN 217334153U
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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
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Abstract
The utility model discloses a fuel cell anode water management system, which is characterized by comprising a hydrogen storage device, a pressure reduction component, an auxiliary gas-water separator and a fuel cell stack which are sequentially connected through pipelines, wherein a gas outlet of the auxiliary gas-water separator is communicated with a hydrogen inlet of the fuel cell stack; an anode gas outlet of the fuel cell stack is communicated with the main gas-water separator, a gas outlet of the main gas-water separator is communicated with the hydrogen circulating pump through a pipeline, and a gas outlet of the hydrogen circulating pump is connected to a pipeline between the pressure reducing assembly and the auxiliary gas-water separator. The utility model discloses a fuel cell anode water management system has improved the reliability that gets into the liquid water separation in the gas of the hydrogen entry of fuel cell pile, has avoided the pile anode by the water logging, has improved the reliability of pile.
Description
Technical Field
The utility model relates to a fuel cell technical field, in particular to a fuel cell anode water management system.
Background
The outlet of the anode of the hydrogen fuel cell stack is a mixed gas of high-temperature hydrogen, nitrogen and water vapor, liquid water exists at the same time, and the high-temperature mixed gas containing the liquid water enters the stack again through the hydrogen circulating pump, so that the hydrogen utilization rate is improved. The existence of liquid water can damage the impeller of the hydrogen circulating pump, and the reliability of the hydrogen circulating pump is reduced. Meanwhile, after the high-temperature mixed gas at the anode outlet of the galvanic pile is mixed with the pure hydrogen at room temperature, the temperature of the mixed gas is reduced to generate condensed water. Condensed water enters the anode of the galvanic pile along with the mixed gas, so that the anode is flooded, the performance of the galvanic pile is reduced, and the galvanic pile is damaged when the flooding is serious.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a fuel cell positive pole water management system has improved the reliability that gets into the liquid separation of water in the gas of the hydrogen entry of fuel cell pile, has avoided the pile positive pole to be flooded by water, has improved the reliability of pile.
In order to achieve the above object, the utility model provides a following technical scheme:
a fuel cell anode water management system comprises a hydrogen storage device, a pressure reduction assembly, an auxiliary gas-water separator and a fuel cell stack which are sequentially connected through pipelines, wherein a gas outlet of the auxiliary gas-water separator is communicated with a hydrogen inlet of the fuel cell stack; an air outlet of an anode of the fuel cell stack is communicated with the main gas-water separator, an air outlet of the main gas-water separator is communicated with a hydrogen circulating pump through a pipeline, and an air outlet of the hydrogen circulating pump is connected to a pipeline between the pressure reducing assembly and the auxiliary gas-water separator;
and a first drain valve is arranged at the water outlet of the auxiliary gas-water separator, and a second drain valve is arranged at the water outlet of the main gas-water separator.
Optionally, the water outlet of the main gas-water separator and the water outlet of the auxiliary gas-water separator are both communicated with the water collector.
Optionally, a water outlet of the main gas-water separator is communicated with the top of a water collector, a pipeline between the main gas-water separator and the fuel cell stack is communicated with a water outlet of the auxiliary gas-water separator, and a water discharging structure is arranged at the bottom of the water collector.
Optionally, the water outlet of the main gas-water separator is communicated with the top of a water collector, the water outlet of the auxiliary gas-water separator is communicated with the water outlet of the main gas-water separator, and a water discharging structure is arranged at the bottom of the water collector.
Optionally, a water outlet of the main gas-water separator is communicated with the top of a water collector, a water outlet of the auxiliary gas-water separator is communicated with the top of the water collector, and a water discharging structure is arranged at the bottom of the water collector.
Optionally, a first liquid level sensor and a first pressure sensor are arranged on the water collector, the first liquid level sensor is used for detecting a liquid level in the water collector, and the first pressure sensor is used for detecting a pressure in the water collector;
the water discharging structure is a pulse water sprayer or a water discharging valve arranged on the water collector.
Optionally, the water collector is communicated with a high-pressure air source through a vent pipe, a first pressure reducing valve is arranged on the vent pipe, a pressure relief pipe is communicated with a pipeline between the first pressure reducing valve and the water collector, a first switch valve is arranged on the pressure relief pipe, a second switch valve is arranged on the pipeline between the pressure relief pipe and the first pressure reducing valve, the second switch valve is arranged on the vent pipe, and the first switch valve and the second switch valve are interlocked.
Optionally, the high-pressure gas source is the hydrogen storage device, and one end of the pressure relief pipeline, which is far away from the vent pipeline, is connected to a pipeline between the main gas-water separator and the hydrogen circulating pump.
Optionally, a second pressure sensor is disposed on a pipeline between the main gas-water separator and the hydrogen circulation pump.
Optionally, the hydrogen storage device is a hydrogen cylinder, the pressure reducing assembly comprises a second pressure reducing valve and a third pressure reducing valve, the second pressure reducing valve is arranged near an outlet of the hydrogen cylinder, and the third pressure reducing valve is arranged at the front end of the auxiliary gas-water separator and the hydrogen circulating pump.
According to the above technical scheme, the utility model provides a fuel cell anode water management system sets up supplementary gas-water separator before the hydrogen entry at the fuel cell pile, and supplementary gas-water separator can be with the reliable separation of the comdenstion water that produces after pure hydrogen mixes with positive pole export high temperature gas mixture to the comdenstion water of avoiding here gets into the hydrogen entry of fuel cell pile. The main gas-water separator is arranged at the anode gas outlet of the fuel cell stack, and separates the liquid water at the anode gas outlet of the fuel cell stack from the mixed gas, so that the content of the liquid water in the mixed gas mixed with the pure hydrogen is reduced, and the separation efficiency of the liquid water is improved. The auxiliary gas-water separator and the main gas-water separator act simultaneously, so that the reliability of liquid water separation in gas entering a hydrogen inlet of the fuel cell stack is improved, the anode of the stack is prevented from being flooded by water, and the reliability of the stack is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an anode water management system of a fuel cell according to an embodiment of the present invention.
Wherein:
1. the hydrogen gas generating device comprises a hydrogen gas cylinder, 2, a second pressure reducing valve, 3, a third pressure reducing valve, 4, a first pressure reducing valve, 5, a hydrogen circulating pump, 6, an auxiliary gas-water separator, 7, a fuel cell stack, 8, a first water discharging valve, 9, a second pressure sensor, 10, a main gas-water separator, 11, a second water discharging valve, 12, a first pressure sensor, 13, a water collector, 14, a pulse water sprayer, 15, a first liquid level sensor, 16, a first switch valve, 17, a throttling valve, 18, a second switch valve, 19, a pressure relief pipeline, 20 and a ventilation pipeline.
Detailed Description
The utility model discloses a fuel cell anode water management system has improved the reliability that gets into the liquid separation of water in the gas of the hydrogen entry of fuel cell pile, has avoided the pile anode to be flooded by water, has improved the reliability of pile.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the anode water management system of the fuel cell of the present invention includes a hydrogen storage device, a pressure reduction assembly, an auxiliary gas-water separator 6 and a fuel cell stack 7 connected in sequence via a pipeline, wherein a gas outlet of the auxiliary gas-water separator 6 is communicated with a hydrogen inlet of the fuel cell stack 7. An anode gas outlet of the fuel cell stack 7 is communicated with the main gas-water separator 10, a gas outlet of the main gas-water separator 10 is communicated with the hydrogen circulating pump 5 through a pipeline, and a gas outlet of the hydrogen circulating pump 5 is connected to the pipeline between the pressure reducing assembly and the auxiliary gas-water separator 6.
The fuel cell stack 7, the main gas-water separator 10 and the hydrogen circulating pump 5 which are communicated by pipelines form a passage, the passage conveys high-temperature mixed gas at an anode gas outlet of the fuel cell stack 7 to a stack gas inlet pipe where the auxiliary gas-water separator 6 is positioned, and then the high-temperature mixed gas is mixed with pure hydrogen output by the hydrogen storage device and then flows into a gas inlet of the auxiliary gas-water separator 6. The water outlet of the auxiliary gas-water separator 6 is provided with a first drain valve 8, and the water outlet of the main gas-water separator 10 is provided with a second drain valve 11. The first drain valve 8 is used for controlling the opening and closing of the drain port of the auxiliary gas-water separator 6, and the second drain valve 11 is used for controlling the opening and closing of the drain port of the main gas-water separator 10, thereby controlling whether the gas-water separator drains water or not.
The utility model discloses a fuel cell positive pole water management system through set up supplementary gas-water separator 6 before fuel cell pile 7's hydrogen entry, supplementary gas-water separator 6 can be with the reliable separation of the comdenstion water that produces after pure hydrogen and the mixed gas of positive pole export high temperature to avoid the comdenstion water here to get into fuel cell pile 7's hydrogen entry. The main gas-water separator 10 is arranged at the anode gas outlet of the fuel cell stack 7, and separates the liquid water at the anode gas outlet of the fuel cell stack 7 from the mixed gas, so that the content of the liquid water in the mixed gas mixed with the pure hydrogen is reduced, and the separation efficiency of the liquid water is improved. The auxiliary gas-water separator 6 and the main gas-water separator 10 act simultaneously, so that the reliability of liquid water separation in gas entering the hydrogen inlet of the fuel cell stack 7 is improved, the anode of the stack is prevented from being flooded by water, and the reliability of the stack is improved.
Further, in order to avoid the influence of the water discharge process on the pressure of the hydrogen pipeline, the water outlet of the main gas-water separator 10 and the water outlet of the auxiliary gas-water separator 6 are both communicated with a water collector 13, and the water collector 13 is used for containing condensed water generated by the main gas-water separator 10 and the auxiliary gas-water separator 6. During water drainage, the drain valves of the main gas-water separator 10 and the auxiliary gas-water separator 6 are both closed, namely the first drain valve 8 and the second drain valve 11 are closed, and the communication between the two gas-water separators and the water collector 13 is cut off, so that the influence of the water collector 13 on the pressure of the hydrogen pipeline of the whole pile during water drainage is avoided, the pressure fluctuation of a hydrogen system caused by the liquid water drainage process is avoided, meanwhile, hydrogen cannot be drained along with the liquid water, and the utilization rate of the hydrogen is improved.
In one embodiment, as shown in fig. 1, the water outlet of the main gas-water separator 10 is communicated with the top of the water collector 13, the pipeline between the main gas-water separator 10 and the fuel cell stack 7 is communicated with the water outlet of the auxiliary gas-water separator 6, and the bottom of the water collector 13 is provided with a water discharging structure. The water outlet of the auxiliary gas-water separator 6 is communicated with the anode gas outlet of the fuel cell stack 7, namely, is communicated with the anode gas outlet pipe of the fuel cell stack 7, and the auxiliary gas-water separator 6 is arranged on the anode gas inlet pipe of the fuel cell stack 7, so that the liquid water separated by the auxiliary gas-water separator 6 is discharged by the pressure difference between the anode inlet and the anode outlet of the fuel cell stack 7, and the reliability is high. The water discharging structure is used for discharging condensed water stored in the water collector 13. The water collector 13 is a closed device for containing condensed water.
In another embodiment, the water outlet of the main gas-water separator 10 is communicated with the top of the water collector 13, the water outlet of the auxiliary gas-water separator 6 is communicated with the water outlet of the main gas-water separator 10, the condensed water separated by the auxiliary gas-water separator 6 is discharged to the water collector 13 together with the condensed water separated by the main gas-water separator 10, and the condensed water separated by the auxiliary gas-water separator 6 is not separated by the main gas-water separator 10. Other structures are the same as the above embodiment, and are not described herein again.
In another embodiment, in order to achieve independent drainage of the main gas-water separator 10 and the auxiliary gas-water separator 6, the water outlet of the main gas-water separator 10 is communicated with the top of the water collector 13, and the water outlet of the auxiliary gas-water separator 6 is communicated with the top of the water collector 13. The main gas-water separator 10 and the auxiliary gas-water separator 6 in this embodiment have their drain lines independent from each other and do not interfere with each other.
Specifically, the water discharging structure is a pulse water sprayer 14 or a water discharging valve arranged on the water collector 13.
In order to conveniently detect the liquid level and the pressure in the water collector 13, a first liquid level sensor 15 and a first pressure sensor 12 are arranged on the water collector 13, the first liquid level sensor 15 is used for detecting the liquid level in the water collector 13, and the first pressure sensor 12 is used for detecting the pressure in the water collector 13. When the liquid level in the water collector 13 reaches a preset high liquid level A, the water discharging structure is opened to discharge water, and when the liquid level in the water collector 13 reaches a preset low liquid level B, the water discharging structure is closed to finish water discharging.
To facilitate the drainage of the condensate water within the water collector 13, the water collector 13 is in communication with a source of high pressure air via a vent line 20. The vent pipeline 20 is provided with a first pressure reducing valve 4, and a pressure relief pipeline 19 is communicated with a pipeline between the first pressure reducing valve 4 and the water collector 13. A first on-off valve 16 is provided on the pressure relief line 19, a second on-off valve 18 is provided on a line between the pressure relief line 19 and the first pressure reducing valve 4, and the second on-off valve 18 is provided on a vent line 20. The second switching valve 18 is interlocked with the first switching valve 16. A throttle valve 17 is also provided in the pressure relief line 19, the throttle valve 17 being provided at an end remote from the vent line 20. The throttle valve 17 is used to control the flow of high pressure hydrogen through the pressure relief line 19.
In a specific embodiment, the high pressure gas source is the hydrogen storage device. The end of the pressure relief line 19 remote from the vent line 20 is connected to the line between the main gas-water separator 10 and the hydrogen circulation pump 5. A second pressure sensor 9 is provided on the pipeline between the main gas-water separator 10 and the hydrogen circulation pump 5. Through setting up pressure release pipeline 19, the high-pressure hydrogen in the water collector 13 that finishes with the drainage is leading-in to the communicating pipe way of hydrogen circulating pump 5, realizes the utilization to hydrogen, improves the utilization ratio of hydrogen, has got rid of the condition that hydrogen was arranged in disorder. The second pressure sensor 9 is used to detect the pressure in the pipe between the main gas-water separator 10 and the hydrogen circulation pump 5. The controller controls the opening and closing of the first opening and closing valve 16 based on the detection values of the first pressure sensor 12 and the second pressure sensor 9. After the water in the water collector 13 is drained, the high-pressure hydrogen in the water collector 13 needs to be recycled, at this time, the second switch valve 18 is closed, when the pressure value detected by the first pressure sensor 12 is greater than the pressure value detected by the second pressure sensor 9, the first switch valve 16 is opened, and when the detection values of the two pressure sensors are equal, the switch valve 16 is closed.
The utility model discloses a fuel cell anode water management system, through setting up the vent line 20 with water collector 13 intercommunication, vent line 20 with store up hydrogen device intercommunication to when water collector 13 drains, open second ooff valve 18, close first ooff valve 16, store up hydrogen device's high-pressure hydrogen stream is through the first relief pressure valve 4 decompression back, then flows through second ooff valve 18, flows to water collector 13, thereby forms the high-pressure gas atmosphere in water collector 13's liquid level top, because high-pressure hydrogen's effect, the comdenstion water in the water collector 13 emits rapidly through pulse sprinkler 14. In the water discharging process of the water collector 13, the first water discharging valve 8 and the second water discharging valve 11 are closed, so that the influence on the pressure of the whole stack hydrogen pipeline when the water collector 13 discharges water is avoided, the pressure fluctuation of a hydrogen system caused by the process is avoided, and hydrogen cannot be discharged along with liquid water. When the liquid level in the water collector 13 drops to a preset low liquid level B, the pulse water sprayer 14 stops spraying water, the second switch valve 18 is closed, the first switch valve 16 is opened, the high-pressure hydrogen in the water collector 13 enters the hydrogen circulating pump 5 through the first switch valve 16 and the throttle valve 17, and when the detection pressure value of the first pressure sensor 12 is equal to the detection pressure value of the second pressure sensor 9, the first switch valve 16 is closed.
The hydrogen storage device is a hydrogen cylinder 1, the pressure reducing component comprises a second pressure reducing valve 2 and a third pressure reducing valve 3, and the second pressure reducing valve 2 is arranged close to an outlet of the hydrogen cylinder 1 and used for controlling the pressure of hydrogen discharged from the hydrogen cylinder 1. A third pressure reducing valve 3 is provided at the front end of the auxiliary gas-water separator 6 and the hydrogen circulation pump 5 for controlling the pressure of hydrogen gas entering the fuel cell stack 7. The set pressures of the second pressure reducing valve 2, the first pressure reducing valve 4, and the third pressure reducing valve 3 are gradually reduced.
Wherein, the auxiliary gas-water separator 6 and the main gas-water separator 10 are both gas-water separators integrated with liquid level sensors. When the liquid level in the auxiliary gas-water separator 6 reaches a preset high liquid level C, the first drain valve 8 is opened to drain water, and when the liquid level in the auxiliary gas-water separator 6 reaches a preset low liquid level D, the first drain valve 8 is closed. When the liquid level in the main gas-water separator 10 reaches a preset high liquid level E, the second drain valve 11 is opened to drain water, and when the liquid level in the main gas-water separator 10 reaches a preset low liquid level F, the second drain valve 11 is closed.
When the fuel cell engine is in a normal working state, the working process of the fuel cell engine is as follows: when the liquid level of the auxiliary gas-water separator 6 reaches a preset high liquid level C, the first drain valve 8 is opened, and when the liquid level is reduced to a low liquid level D, the first drain valve 8 is closed. When the liquid level of the main gas-water separator 10 reaches a preset high liquid level E, the second drain valve 11 is opened to drain water, and when the liquid level in the main gas-water separator 10 reaches a preset low liquid level F, the second drain valve 11 is closed.
The first drain valve 8 and the second drain valve 11 are simultaneously controlled by signals of the first liquid level sensor 15, when the liquid level of the water collector 13 reaches a preset high liquid level A, the first drain valve 8 and the second drain valve 11 are closed and are not controlled by liquid level signals of the gas-water separator, and the liquid level in the water collector 13 is prevented from exceeding the preset high level A. When the liquid level in the water collector 13 is lower than the preset height A, the opening and closing of the first drain valve 8 and the second drain valve 11 are controlled by the liquid level signal of the gas-water separator. The second switch valve 18 is related to the detected value of the first liquid level sensor 15, when the liquid level in the water collector 13 reaches the preset height a, the second switch valve 18 is opened, and when the liquid level drops to the set low value, the second switch valve 18 is closed.
After liquid water and high-temperature mixed gas at an anode outlet of the fuel cell stack 7 pass through the main gas-water separator 10, the liquid water separated by the main gas-water separator 10 enters the water collector 13 through the second drain valve 11, the high-temperature mixed gas at an air outlet of the main gas-water separator 10 passes through the hydrogen circulating pump 5 and then is mixed with low-temperature pure hydrogen decompressed by the second decompression valve 2 and the third decompression valve 3, the mixed gas passes through the auxiliary gas-water separator 6, the liquid water generated by condensation of the auxiliary gas-water separator 6 is separated, and the liquid water passes through the first drain valve 8 and then is mixed with the high-temperature gas at the anode outlet.
The working process of the fuel cell engine during the water drainage when the engine is stopped is as follows: the first and second on-off valves 16 and 18 are closed, the first and second drain valves 8 and 11 are opened until the liquid water levels in the auxiliary gas-water separator 6 and the main gas-water separator 10 are lowered to 0, and then the first and second drain valves 8 and 11 are closed. The first on-off valve 16 remains closed, the second on-off valve 18 is opened, and the pulse sprinkler 14 is turned on until the level of liquid water in the sump 13 is lowered to 0. And (3) closing the second switch valve 18, opening the first switch valve 16 until the pressure values detected by the second pressure sensor 9 and the first pressure sensor 12 are the same, closing the first switch valve 16 and the second switch valve 18, and finishing the drainage process.
The first switch valve 16, the second switch valve 18, the first drain valve 8, the second pressure sensor 9, the second drain valve 11, the first pressure sensor 12, the pulse water sprayer 14, the first liquid level sensor 15 and the throttle valve 17 are all in communication connection with a controller, and the method for the controller to control the above devices is the prior art and is not described herein again. The controller is a PLC or a single chip microcomputer, and is not limited here. In order to facilitate automatic control, the valves are electric control valves.
The utility model discloses a fuel cell anode water management system can avoid liquid water to get into the positive pole entry of fuel cell pile 7 with the reliable separation of the comdenstion water that produces after pure hydrogen and the mixed of positive pole export high temperature gas mixture. Meanwhile, the auxiliary gas-water separator 6 discharges water by means of the pressure difference between the anode inlet and the anode outlet of the galvanic pile, and the reliability is high. The main gas-water separator 10 is arranged in the hydrogen system, and liquid water at the anode outlet of the galvanic pile is separated from the mixed gas from the liquid water separated by the auxiliary gas-water separator 6, so that the liquid water separation efficiency is improved. By arranging the pulse water sprayer 14 that is sprayed by means of high-pressure gas, the water collector 13 is disconnected from the hydrogen pipeline of the fuel cell engine during the opening process, so that the water discharge process does not affect the pressure of the hydrogen pipeline, and the pressure of the hydrogen pipeline is stable. During the water discharge process of the pulse water sprayer 14, liquid water with a certain water level is kept in the water collector 13, hydrogen cannot be discharged along with the liquid water, and after the water discharge is finished, the hydrogen enters the hydrogen pipeline again by means of pressure difference, so that the hydrogen utilization rate is improved.
In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this embodiment, "a plurality" means two or more unless specifically limited otherwise.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The fuel cell anode water management system is characterized by comprising a hydrogen storage device, a pressure reduction component, an auxiliary gas-water separator and a fuel cell stack which are sequentially connected through pipelines, wherein a gas outlet of the auxiliary gas-water separator is communicated with a hydrogen inlet of the fuel cell stack; an air outlet of the anode of the fuel cell stack is communicated with the main gas-water separator, an air outlet of the main gas-water separator is communicated with a hydrogen circulating pump through a pipeline, and an air outlet of the hydrogen circulating pump is connected to a pipeline between the pressure reducing assembly and the auxiliary gas-water separator;
and a first drain valve is arranged at the water outlet of the auxiliary gas-water separator, and a second drain valve is arranged at the water outlet of the main gas-water separator.
2. The fuel cell anode water management system of claim 1, wherein the water outlet of the primary gas-water separator and the water outlet of the secondary gas-water separator are both in communication with a water collector.
3. The fuel cell anode water management system according to claim 2, wherein a water outlet of the primary gas-water separator is communicated with a top of a water collector, a pipeline between the primary gas-water separator and the fuel cell stack is communicated with a water outlet of the secondary gas-water separator, and a water discharging structure is arranged at a bottom of the water collector.
4. The fuel cell anode water management system of claim 2, wherein the water outlet of the primary gas-water separator is in communication with the top of a water collector, the water outlet of the secondary gas-water separator is in communication with the water outlet of the primary gas-water separator, and the bottom of the water collector is provided with a water discharge structure.
5. The fuel cell anode water management system according to claim 2, wherein the water outlet of the primary gas-water separator is communicated with the top of a water collector, the water outlet of the secondary gas-water separator is communicated with the top of the water collector, and a water discharging structure is arranged at the bottom of the water collector.
6. The fuel cell anode water management system according to any one of claims 3 to 5, wherein a first level sensor and a first pressure sensor are provided on the sump, the first level sensor being configured to detect a level of liquid in the sump, the first pressure sensor being configured to detect a pressure in the sump;
the water discharging structure is a pulse water sprayer or a water discharging valve arranged on the water collector.
7. The system for managing anode water of a fuel cell according to any one of claims 3 to 5, wherein the water collector is in communication with a high-pressure air source through an air vent line, a first pressure reducing valve is disposed on the air vent line, a pressure relief line is in communication with a line between the first pressure reducing valve and the water collector, a first switch valve is disposed on the pressure relief line, a second switch valve is disposed on a line between the pressure relief line and the first pressure reducing valve, the second switch valve is disposed on the air vent line, and the first switch valve is interlocked with the second switch valve.
8. The fuel cell anode water management system according to claim 7, wherein the high-pressure gas source is the hydrogen storage device, and an end of the pressure release line remote from the vent line is connected to a line between the main gas-water separator and the hydrogen circulation pump.
9. The fuel cell anode water management system according to claim 8, wherein a second pressure sensor is provided on a pipe between the main gas-water separator and the hydrogen circulation pump.
10. The fuel cell anode water management system according to claim 1, wherein the hydrogen storage device is a hydrogen cylinder, the pressure reducing assembly includes a second pressure reducing valve provided near an outlet of the hydrogen cylinder and a third pressure reducing valve provided at a front end of the auxiliary gas-water separator and the hydrogen circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122887897.2U CN217334153U (en) | 2021-11-22 | 2021-11-22 | Fuel cell anode water management system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122887897.2U CN217334153U (en) | 2021-11-22 | 2021-11-22 | Fuel cell anode water management system |
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| CN217334153U true CN217334153U (en) | 2022-08-30 |
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| CN202122887897.2U Active CN217334153U (en) | 2021-11-22 | 2021-11-22 | Fuel cell anode water management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914189A (en) * | 2023-09-13 | 2023-10-20 | 佛山市清极能源科技有限公司 | Hydrogen circulation system of fuel cell and water drainage and exhaust method |
-
2021
- 2021-11-22 CN CN202122887897.2U patent/CN217334153U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116914189A (en) * | 2023-09-13 | 2023-10-20 | 佛山市清极能源科技有限公司 | Hydrogen circulation system of fuel cell and water drainage and exhaust method |
| CN116914189B (en) * | 2023-09-13 | 2023-12-22 | 佛山市清极能源科技有限公司 | Drainage and exhaust method and fuel cell hydrogen circulation system |
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