CN215834561U - Fuel cell air system for power station - Google Patents
Fuel cell air system for power station Download PDFInfo
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- CN215834561U CN215834561U CN202121293209.3U CN202121293209U CN215834561U CN 215834561 U CN215834561 U CN 215834561U CN 202121293209 U CN202121293209 U CN 202121293209U CN 215834561 U CN215834561 U CN 215834561U
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- regulating valve
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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 present invention provides a fuel cell air system for a power station, comprising: the system comprises an air compressor, a heat exchanger, a control cabinet, an electromagnetic valve, a flow regulating valve, a back pressure regulating valve, an electric pile group, a water pump and a water tank; an air outlet of the air compressor is communicated with an air inlet of the heat exchanger; an air outlet of the heat exchanger is communicated with an air inlet of the electric pile group through a backpressure regulating valve; the water tank is communicated with a cooling medium inlet of the heat exchanger through a water pump, a flow regulating valve and an electromagnetic valve in sequence; a cooling medium outlet of the heat exchanger is communicated with the water tank; the control cabinet is respectively electrically connected with the air compressor, the flow regulating valve and the back pressure regulating valve; the utility model can avoid the condition that the flow of the cooling medium in the heat exchanger is too large or too small compared with the air flow entering the heat exchanger to a certain extent, thereby solving the technical problem of insufficient or excessive cooling capacity of the cooling medium in the heat exchanger to a certain extent.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a fuel cell air system for a power station.
Background
Unlike automotive fuel cell systems, large fuel cell power plants tend to be on the megawatt level with numerous stacks. For a large number of stacks, a centralized air supply compressor and centralized humidity control are typically used to improve the integration and control performance of large fuel cell power plants.
Because the temperature of the air passing through the air compressor is high, a heat exchange device is usually arranged behind the air compressor to cool the air passing through the air compressor; the conventional fuel cell air system for the power station cannot adjust the flow of the cooling medium in the heat exchange device according to the power of the air compressor, so that the flow of the cooling medium in the heat exchange device is possibly too large or too small, and the surplus or the shortage of the cooling capacity of the cooling medium is easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the conventional fuel cell air system for the power station cannot adjust the flow of a cooling medium in a heat exchange device according to the power of an air compressor.
The present invention provides a fuel cell air system for a power station, comprising: the system comprises an air compressor, a heat exchanger, a control cabinet, an electromagnetic valve, a flow regulating valve, a back pressure regulating valve, an electric pile group, a water pump and a water tank;
an air outlet of the air compressor is communicated with an air inlet of the heat exchanger; the air outlet of the heat exchanger is communicated with the air inlet of the electric pile group through the backpressure regulating valve;
the water tank is communicated with a cooling medium inlet of the heat exchanger sequentially through the water pump, the flow regulating valve and the electromagnetic valve; a cooling medium outlet of the heat exchanger is communicated with the water tank;
the control cabinet is respectively electrically connected with the air compressor, the flow regulating valve and the back pressure regulating valve; the control cabinet is used for adjusting the opening of the flow regulating valve according to the power of the air compressor; the control cabinet is also used for adjusting the conducting pressure of the back pressure adjusting valve.
In some preferred embodiments, the fuel cell air system for a power plant further comprises an air filter; the air filter is in communication with the air inlet of the air compressor for filtering air entering the air compressor.
In some preferred embodiments, the fuel cell air system for a power plant further comprises a condensation water collector; the air inlet of the condensation water collector is communicated with the air outlet of the electric pile group and is used for condensing water vapor in the air discharged from the air outlet of the electric pile group; and the water outlet of the condensation water collector is communicated with the water tank and is used for returning water condensed by the condensation water collector into the water tank.
In some preferred embodiments, the fuel cell air system for a power plant further comprises a humidifier; the humidifier is arranged between the back pressure regulating valve and the air inlet of the electric pile group and is used for increasing the humidity of air entering the electric pile group.
In some preferred embodiments, the fuel cell air system for a power plant further comprises a temperature and pressure sensor; the temperature and pressure sensor is arranged between the back pressure regulating valve and the air inlet of the electric pile group and used for detecting the temperature and the pressure of air entering the electric pile group.
In some preferred embodiments, the fuel cell air system for a power plant further comprises a flow meter; the flow meter is arranged between the back pressure regulating valve and an air inlet of the electric pile group and used for detecting the flow of air entering the electric pile group.
In some preferred embodiments, the fuel cell air system for a power plant further comprises a heating device for heating the power plant; a heat medium inlet of the heating device is communicated with a cooling medium outlet of the heat exchanger; and a heat medium outlet of the heating device is communicated with the water tank.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects: the fuel cell air system for the power station comprises an air compressor, a heat exchanger, a control cabinet, an electromagnetic valve, a flow regulating valve, a back pressure regulating valve, a pile group, a water pump and a water tank; the air compressor, the heat exchanger and the electric pile group are communicated in sequence, the water tank is communicated with a cooling medium inlet of the heat exchanger through the water pump, the flow regulating valve and the electromagnetic valve in sequence, the control cabinet is adopted to regulate the power of the air compressor, and the opening of the flow regulating valve is regulated according to the power of the air compressor; when the air compressor is in a low-power working condition, controlling the opening degree of the flow regulating valve to be reduced, and reducing the flow of the cooling medium entering the heat exchanger; when the air compressor is in a high-power working condition, the opening of the flow regulating valve is controlled to be increased, and the flow of the cooling medium entering the heat exchanger is increased; the flow of the cooling medium in the heat exchanger can be adjusted according to the power of the air compressor, and the situation that the flow of the cooling medium in the heat exchanger is too large or too small compared with the flow of the air entering the heat exchanger is avoided to a certain extent, so that the technical problem that the cooling capacity of the cooling medium in the heat exchanger is insufficient or excessive is solved to a certain extent.
Drawings
FIG. 1 is a schematic diagram of a fuel cell air system for a power plant according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the electrical connections of the fuel cell air system for the power plant of FIG. 1;
wherein, 1, air filter; 2. an air compressor; 3. a heat exchanger; 4. a back pressure regulating valve; 5. a humidifier; 6. a temperature and pressure sensor; 7. a flow meter; 8. electric pile group; 9. a condensation water collector; 10. a water tank; 11. a heating device; 12. a water pump; 13. a flow regulating valve; 14. an electromagnetic valve; 15. a control cabinet.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Referring to fig. 1 and 2, an embodiment of the present invention provides a fuel cell air system for a power plant, including: the system comprises an air filter 1, an air compressor 2, a heat exchanger 3, a control cabinet 15, an electromagnetic valve 14, a flow regulating valve 13, a back pressure regulating valve 4, a humidifier 5, a temperature and pressure sensor 6, a flow meter 7, a galvanic pile group 8, a water pump 12 and a water tank 10.
The air filter 1 is communicated with an air inlet of the air compressor 2 and is used for filtering air entering the air compressor 2; an air outlet of the air compressor 2 is communicated with an air inlet of the heat exchanger 3; an air outlet of the heat exchanger 3 is communicated with an air inlet of the electric pile group 8 through a backpressure regulating valve 4 and a humidifier 5 in sequence; the humidifier 5 is used for increasing the humidity of the air entering the electric pile group 8; the temperature and pressure sensor 6 and the flow meter 7 are arranged between the humidifier 5 and an air inlet of the electric pile group 8; the flow meter 7 is used for detecting the flow of air entering the electric pile group 8; the temperature and pressure sensor 6 is used for detecting the temperature and pressure of air entering the electric pile group 8; the air loops of each electric pile in the electric pile group 8 are connected in parallel;
the water tank 10 is communicated with a cooling medium inlet of the heat exchanger 3 through a water pump 12, a flow regulating valve 13 and an electromagnetic valve 14 in sequence; a cooling medium outlet of the heat exchanger 3 is communicated with the water tank 10;
the control cabinet 15 is respectively electrically connected with the air compressor 2, the flow regulating valve 13 and the backpressure regulating valve 4; the control cabinet 15 is used for adjusting the opening degree of the flow regulating valve 13 according to the power of the air compressor 2; the control cabinet 15 is also used to regulate the feed-through pressure of the back pressure regulating valve 4.
It should be noted that the temperature and pressure sensor 6 is an integrated temperature and pressure sensor, which is a prior art, and therefore, the detailed structure thereof is not described herein.
Further, referring to fig. 1, in order to recover water vapor in the air discharged from the air outlet of the stack group 8, the fuel cell air system for a power plant further includes a condensation water collector 9; an air inlet of the condensation water collector 9 is communicated with an air outlet of the electric pile group 8 and is used for condensing water vapor in air discharged from the air outlet of the electric pile group 8; the water outlet of the condensed water collector 9 is communicated with the water tank 10 for returning the water condensed by the condensed water collector 9 into the water tank 10.
Further, referring to fig. 1, in order to recycle heat absorbed by the cooling medium discharged from the cooling medium outlet of the heat exchanger 3 while reducing heat of the cold cutting medium flowing back to the water tank 10; the fuel cell air system for the power station further includes a heating device 11 for heating the power station; a heat medium inlet of the heating device 11 is communicated with a cooling medium outlet of the heat exchanger 3; the heat medium outlet of the heating device 11 is communicated with the water tank 10; the heating device 11 is provided in a space to be heated in a power plant, such as an operation room; the cooling medium flowing out from the cooling medium outlet of the heat exchanger 3 flows through the heating device 11, and heat is conducted to the space needing to be heated through the heating device 11, so that heating is realized; it should be noted that the heating device 11 is a conventional heating device, and therefore, the detailed structure thereof is not described herein; the heater 11 may be a finned radiator, for example.
The operating principle of the fuel cell air system for a power station in this embodiment is as follows:
the outside air enters the electric pile group 8 after passing through the air filter 1, the air compressor 2, the heat exchanger 3, the backpressure regulating valve 4 and the humidifier 5 in sequence; then, the water vapor is condensed by a condensation water collector 9 from an air outlet of the electric pile group 8 and then is discharged into the atmosphere; the condensed water flows back to the water tank 10; cooling medium in the water tank 10 sequentially passes through the water pump 12, the flow regulating valve 13 and the electromagnetic valve 14 to enter the heat exchanger 3, so that the air flowing through the air compressor 2 is cooled; the cooling medium flowing through the heat exchanger 3 is cooled by the heating device 11 and then flows back to the water tank 10; when the air compressor 2 is in a low-power working condition, the opening degree of the flow regulating valve 13 is controlled to be reduced, and the flow of the cooling medium entering the heat exchanger 3 is reduced; when the air compressor 2 is in a high-power working condition, the opening degree of the flow regulating valve 13 is controlled to be increased, and the flow of the cooling medium entering the heat exchanger 3 is increased; the flow of the cooling medium in the heat exchanger 3 can be adjusted according to the power of the air compressor 2, and the situation that the flow of the cooling medium in the heat exchanger 3 is too large or too small compared with the air flow entering the heat exchanger 3 can be avoided to a certain extent, so that the technical problem that the cooling capacity of the cooling medium in the heat exchanger 3 is insufficient or excessive is solved to a certain extent.
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 purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, 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 (7)
1. A fuel cell air system for a power plant, comprising: the system comprises an air compressor, a heat exchanger, a control cabinet, an electromagnetic valve, a flow regulating valve, a back pressure regulating valve, an electric pile group, a water pump and a water tank;
an air outlet of the air compressor is communicated with an air inlet of the heat exchanger; the air outlet of the heat exchanger is communicated with the air inlet of the electric pile group through the backpressure regulating valve;
the water tank is communicated with a cooling medium inlet of the heat exchanger sequentially through the water pump, the flow regulating valve and the electromagnetic valve; a cooling medium outlet of the heat exchanger is communicated with the water tank;
the control cabinet is respectively electrically connected with the air compressor, the flow regulating valve and the back pressure regulating valve; the control cabinet is used for adjusting the opening of the flow regulating valve according to the power of the air compressor; the control cabinet is also used for adjusting the conducting pressure of the back pressure adjusting valve.
2. The fuel cell air system for a power plant according to claim 1, further comprising an air filter; the air filter is in communication with the air inlet of the air compressor for filtering air entering the air compressor.
3. The fuel cell air system for a power plant according to claim 1, further comprising a condensation water collector; the air inlet of the condensation water collector is communicated with the air outlet of the electric pile group and is used for condensing water vapor in the air discharged from the air outlet of the electric pile group; and the water outlet of the condensation water collector is communicated with the water tank and is used for returning water condensed by the condensation water collector into the water tank.
4. The fuel cell air system for a power plant according to claim 1, further comprising a humidifier; the humidifier is arranged between the back pressure regulating valve and the air inlet of the electric pile group and is used for increasing the humidity of air entering the electric pile group.
5. The fuel cell air system for a power plant according to claim 1, further comprising a temperature and pressure sensor; the temperature and pressure sensor is arranged between the back pressure regulating valve and the air inlet of the electric pile group and used for detecting the temperature and the pressure of air entering the electric pile group.
6. The fuel cell air system for a power plant according to claim 1, further comprising a flow meter; the flow meter is arranged between the back pressure regulating valve and an air inlet of the electric pile group and used for detecting the flow of air entering the electric pile group.
7. The fuel cell air system for a power plant according to claim 1, further comprising a heating device for heating the power plant; a heat medium inlet of the heating device is communicated with a cooling medium outlet of the heat exchanger; and a heat medium outlet of the heating device is communicated with the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121293209.3U CN215834561U (en) | 2021-06-09 | 2021-06-09 | Fuel cell air system for power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121293209.3U CN215834561U (en) | 2021-06-09 | 2021-06-09 | Fuel cell air system for power station |
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| Publication Number | Publication Date |
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| CN215834561U true CN215834561U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121293209.3U Active CN215834561U (en) | 2021-06-09 | 2021-06-09 | Fuel cell air system for power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115360383A (en) * | 2022-10-18 | 2022-11-18 | 北京亿华通科技股份有限公司 | Fuel cell engine air device and fuel cell engine |
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2021
- 2021-06-09 CN CN202121293209.3U patent/CN215834561U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115360383A (en) * | 2022-10-18 | 2022-11-18 | 北京亿华通科技股份有限公司 | Fuel cell engine air device and fuel cell engine |
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