CN218414661U - Fuel cell air management system - Google Patents
Fuel cell air management system Download PDFInfo
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- CN218414661U CN218414661U CN202222468747.2U CN202222468747U CN218414661U CN 218414661 U CN218414661 U CN 218414661U CN 202222468747 U CN202222468747 U CN 202222468747U CN 218414661 U CN218414661 U CN 218414661U
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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 provides a fuel cell air management system, including pile, exhaust silencer, first pressure sensor and second pressure sensor, the output of pile and the input intercommunication of exhaust silencer, the output and the atmosphere intercommunication of exhaust silencer, first pressure sensor sets up the input at exhaust silencer, and second pressure sensor sets up the output at exhaust silencer, and first pressure sensor is used for detecting the pressure of exhaust silencer input, and second pressure sensor is used for detecting the pressure of exhaust silencer output. Through the technical scheme provided by the utility model, can solve among the prior art when the blast pipe by the shutoff, the problem that fuel cell air management system can not in time discover.
Description
Technical Field
The utility model relates to a fuel cell technical field particularly, relates to a fuel cell air management system.
Background
The air management system of the fuel cell mainly comprises an air filter, an air compressor, an intercooler, a humidifier, an electric pile, an exhaust pipeline, an exhaust silencer structure and the like, and has the function of influencing the power generation performance of the fuel cell by adjusting parameters such as air flow, pressure, temperature, humidity and the like entering the electric pile. The fuel cell air circulation loop is as follows: the air compressor provides a power source for the whole air loop, air enters the galvanic pile for reaction after being filtered by the air filter, cooled by the intercooler and humidified by the humidifier, wet air after reaction enters the humidifier again to humidify dry air entering the galvanic pile, and then the wet air is discharged to the atmosphere through the exhaust silencer.
However, when the vehicle is backing up, the exhaust pipe may be stuck into the soil pile or the snow pile, so that the exhaust pipe is blocked by soil or snow (or in the process of off-road), under such a condition, if the fuel cell is forcibly started, the pressure of the tail exhaust is continuously increased, the pressure of the cathode and the anode of the electric pile is increased, and the proton exchange membrane of the electric pile is damaged or an alarm program is triggered due to overlarge pressure difference; such as a continuous rise in pressure, can also lead to surge damage of the air compressor. For the existing situations, the prior art fuel cell air management system has the problem that the existing situations cannot be found in time.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fuel cell air management system to when the blast pipe was by the shutoff, the problem that fuel cell air management system can not in time discover among the solution prior art.
In order to solve the problem, the utility model provides a fuel cell air management system, including galvanic pile, exhaust silencer, first pressure sensor and second pressure sensor, the output of galvanic pile and the input intercommunication of exhaust silencer, the output and the atmosphere intercommunication of exhaust silencer, first pressure sensor sets up the input at exhaust silencer, second pressure sensor sets up the output at exhaust silencer, first pressure sensor is used for detecting the pressure of exhaust silencer input, second pressure sensor is used for detecting the pressure of exhaust silencer output.
Furthermore, the fuel cell air management system also comprises a protection pipeline, the input end of the protection pipeline is communicated with the output end of the electric pile in an on-off mode, and the output end of the protection pipeline is communicated with the atmosphere.
Further, the protection pipeline comprises a main pipeline and an emergency switch valve, the input end of the main pipeline is communicated with the output end of the electric pile, the output end of the main pipeline is communicated with the atmosphere, and the emergency switch valve is arranged on the main pipeline.
Further, the fuel cell air management system has a normal working condition and a protection working condition, and is in the normal working condition and the emergency switch valve is closed when the pressure difference value between the first pressure sensor and the second pressure sensor is 6800 Pa-7200 Pa; and under the condition that the pressure difference value between the first pressure sensor and the second pressure sensor is less than 1000Pa, the fuel cell air management system is in a protection working condition, and the emergency switch valve is opened.
Furthermore, the fuel cell air management system also comprises a control part, wherein the first pressure sensor, the second pressure sensor and the emergency switch valve are electrically connected with the control part, the control part receives detection results of the first pressure sensor and the second pressure sensor, and the control part controls the emergency switch valve to be opened and closed.
The fuel cell air management system further comprises an air compressor, an intercooler and a humidifier, wherein the humidifier is provided with a first inlet, a second inlet, a first outlet and a second outlet, the input end of the intercooler is communicated with the output end of the air compressor, the first output end of the intercooler is communicated with the first inlet of the humidifier, the first outlet of the humidifier is communicated with the input end of the galvanic pile in an on-off mode, the output end of the galvanic pile is communicated with the second inlet of the humidifier in an on-off mode, and the second outlet of the humidifier is communicated with the input end of the exhaust silencer.
The fuel cell air management system further comprises a first stop valve and a second stop valve, the first stop valve is arranged on a pipeline which is communicated with the first outlet of the humidifier and the input end of the stack, and the second stop valve is arranged on a pipeline which is communicated with the output end of the stack and the second inlet of the humidifier.
Further, the fuel cell air management system also comprises a bypass valve, and the bypass valve is arranged on a pipeline communicated with the second output end of the intercooler and the input end of the exhaust silencer.
Further, the fuel cell air management system also comprises a backpressure valve, and the backpressure valve is arranged on a pipeline for communicating the second outlet of the humidifier with the input end of the exhaust silencer.
Furthermore, the fuel cell air management system also comprises an air filter, a sensor group and an air inlet silencer, wherein the air filter, the sensor group, the air inlet silencer and the air compressor are sequentially connected.
Use the technical scheme of the utility model, a fuel cell air management system is provided, including galvanic pile, exhaust silencer, first pressure sensor and second pressure sensor, the output of galvanic pile and the input intercommunication of exhaust silencer, the output and the atmosphere intercommunication of exhaust silencer, first pressure sensor set up the input at exhaust silencer, and second pressure sensor sets up the output at exhaust silencer, and first pressure sensor is used for detecting the pressure of exhaust silencer input, and second pressure sensor is used for detecting the pressure of exhaust silencer output. By adopting the scheme, the first pressure sensor is arranged at the input end of the exhaust silencer, and the second pressure sensor is arranged at the output end of the exhaust silencer, so that the first pressure sensor can detect the pressure at the input end of the exhaust silencer, the second pressure sensor can detect the pressure at the output end of the exhaust silencer, and at the moment, a user can judge whether the exhaust pipe is blocked or not according to the pressure difference value between the input end of the exhaust silencer and the output end of the exhaust silencer, so that timely treatment can be carried out, and the situation that the cathode and anode pressures of a galvanic pile are increased due to continuous increase of the pressure of a tail exhaust when the exhaust pipe is blocked, and further a proton exchange membrane of the galvanic pile is damaged due to overlarge pressure difference or an alarm program is triggered is avoided; the problem that the fuel cell air management system cannot find in time when the exhaust pipe is blocked in the prior art is effectively solved.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:
fig. 1 shows a schematic structural diagram of a fuel cell air management system provided by an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a galvanic pile;
20. an exhaust muffler;
30. a first pressure sensor;
40. a second pressure sensor;
50. protecting the pipeline; 51. a main pipeline; 52. an emergency on-off valve;
61. an air compressor; 62. an intercooler; 63. a humidifier; 64. a first shut-off valve; 65. a second stop valve; 66. an air cleaner; 67. a sensor group; 68. an intake muffler;
70. a bypass valve;
80. a back pressure valve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a fuel cell air management system, including a stack 10, an exhaust muffler 20, a first pressure sensor 30 and a second pressure sensor 40, where an output end of the stack 10 communicates with an input end of the exhaust muffler 20, an output end of the exhaust muffler 20 communicates with the atmosphere, the first pressure sensor 30 is disposed at the input end of the exhaust muffler 20, the second pressure sensor 40 is disposed at the output end of the exhaust muffler 20, the first pressure sensor 30 is used for detecting the pressure at the input end of the exhaust muffler 20, and the second pressure sensor 40 is used for detecting the pressure at the output end of the exhaust muffler 20.
By adopting the scheme, the first pressure sensor 30 is arranged at the input end of the exhaust muffler 20, and the second pressure sensor 40 is arranged at the output end of the exhaust muffler 20, so that the first pressure sensor 30 can detect the pressure at the input end of the exhaust muffler 20, the second pressure sensor 40 can detect the pressure at the output end of the exhaust muffler 20, and at the moment, an operator can judge whether the exhaust pipe is blocked or not through the pressure difference value between the input end of the exhaust muffler 20 and the output end of the exhaust muffler 20, so that timely processing can be carried out, the situation that the cathode and anode pressure of the electric pile 10 is increased due to continuous increase of the pressure of the tail exhaust when the exhaust pipe is blocked, the proton exchange membrane of the electric pile 10 is damaged due to overlarge pressure difference or an alarm program is triggered is avoided, and the problem that the air management system of the fuel cell cannot find in time when the exhaust pipe is blocked in the prior art is effectively solved.
The fuel cell air management system further comprises a protection pipeline 50, wherein the input end of the protection pipeline 50 is in on-off communication with the output end of the electric pile 10, and the output end of the protection pipeline 50 is in communication with the atmosphere. The input end of the protection pipeline 50 is communicated with the output end of the electric pile 10 in an on-off mode, and the output end of the protection pipeline 50 is communicated with the atmosphere, so that when the exhaust pipe is blocked, air after reaction of the electric pile 10 can be discharged into the atmosphere through the protection pipeline 50, and the condition that the electric pile 10 is damaged due to overlarge pressure difference is avoided.
Further, the protection pipeline 50 includes a main pipeline 51 and an emergency switch valve 52, an input end of the main pipeline 51 is communicated with an output end of the electric pile 10, an output end of the main pipeline 51 is communicated with the atmosphere, and the emergency switch valve 52 is arranged on the main pipeline 51. The emergency opening and closing valve 52 is provided on the main line 51, so that the opening and closing of the main line 51 can be controlled by the emergency opening and closing valve 52.
In this embodiment, the fuel cell air management system has a normal working condition and a protection working condition, and when the pressure difference between the first pressure sensor 30 and the second pressure sensor 40 is 6800Pa to 7200Pa, the fuel cell air management system is in the normal working condition, and the emergency on-off valve 52 is closed; in the state where the pressure difference between the first pressure sensor 30 and the second pressure sensor 40 is less than 1000Pa, the fuel cell air management system is in the protection operating condition, and the emergency opening and closing valve 52 is opened. It should be noted that the first pressure sensor 30 and the second pressure sensor 40 may change with the power of the fuel cell air management system, and the pressure difference between the first pressure sensor 30 and the second pressure sensor 40 represents the change process in a short period when the exhaust pipe is blocked, so that it can be determined that the fuel cell air management system is in the normal working condition or the protection working condition through the pressure difference between the first pressure sensor 30 and the second pressure sensor 40, where when the first pressure sensor 30 and the second pressure sensor 40 continuously maintain a certain pressure difference, the fuel cell air management system is in the normal working condition, specifically, in the present embodiment, under the rated working condition, when the pressure difference between the first pressure sensor 30 and the second pressure sensor 40 is 6800Pa to 7200Pa, it may be determined that the fuel cell air management system is in the normal working condition, the exhaust pipe is not blocked, at this time, the protection pipe 50 does not need to be opened, the emergency switch valve 52 is in the closed state, and the air reacted by the stack 10 is directly exhausted through the exhaust muffler 20; when the pressure difference between the first pressure sensor 30 and the second pressure sensor 40 is continuously reduced, the fuel cell air management system is in a protection working condition at this time, specifically, when the pressure difference between the first pressure sensor 30 and the second pressure sensor 40 is less than 1000Pa, it can be determined that the fuel cell air management system is in the protection working condition, the exhaust pipe is blocked, at this time, the protection pipeline 50 needs to be opened, the emergency switch valve 52 is in an open state, and then the air after the reaction of the stack 10 is directly exhausted into the atmosphere through the main pipeline 51 without passing through the exhaust muffler 20, so that the situation that the stack 10 is damaged due to an excessively large pressure difference of the stack 10 is effectively avoided. The main pipe 51 is located at a position far from the outlet of the exhaust pipe, so that the blockage situation can not occur.
Specifically, the fuel cell air management system further comprises a control part, the first pressure sensor 30, the second pressure sensor 40 and the emergency on-off valve 52 are all electrically connected with the control part, the control part receives detection results of the first pressure sensor 30 and the second pressure sensor 40, and the control part controls the emergency on-off valve 52 to be opened and closed. The first pressure sensor 30, the second pressure sensor 40 and the emergency switch valve 52 are all electrically connected with the control part, so that the control part can receive detection results of the first pressure sensor 30 and the second pressure sensor 40, and can control the emergency switch valve 52 to be opened and closed according to different working conditions of the fuel cell air management system, and the automation degree of the fuel cell air management system is improved.
Specifically, the fuel cell air management system further comprises an air compressor 61, an intercooler 62 and a humidifier 63, the humidifier 63 has a first inlet, a second inlet, a first outlet and a second outlet, an input end of the intercooler 62 is communicated with an output end of the air compressor 61, a first output end of the intercooler 62 is communicated with the first inlet of the humidifier 63, a first outlet of the humidifier 63 is in on-off communication with an input end of the cell stack 10, an output end of the cell stack 10 is in on-off communication with the second inlet of the humidifier 63, and a second outlet of the humidifier 63 is communicated with an input end of the exhaust muffler 20. Through the arrangement mode, the air compressor 61 can improve a power source for the fuel cell air management system, external air is pressed into the intercooler 62, the air is cooled through the intercooler 62, the air is humidified through the humidifier 63 and then enters the electric pile 10 to react, water generated after the reaction enters the humidifier 63 from the second inlet of the humidifier 63 to humidify the air, and then the reacted air enters the exhaust silencer 20 through the second outlet of the humidifier 63 and is exhausted to the atmosphere.
Further, the fuel cell air management system further includes a first shutoff valve 64 and a second shutoff valve 65, the first shutoff valve 64 being provided on a line connecting the first outlet of the humidifier 63 and the input of the stack 10, and the second shutoff valve 65 being provided on a line connecting the output of the stack 10 and the second inlet of the humidifier 63. The first stop valve 64 can control the opening and closing of the first outlet of the humidifier 63 and the pipeline of the input end of the electric pile 10; the second cut-off valve 65 is provided to control the opening and closing of the lines of the output of the stack 10 and the second inlet of the humidifier 63.
In this embodiment, the fuel cell air management system further includes a bypass valve 70, the bypass valve 70 being disposed in a line communicating a second output of the intercooler 62 with an input of the exhaust muffler 20. By providing the bypass valve 70, after the fuel cell air management system is closed, since the air compressor 61 is still running for a period of time, the bypass valve 70 is opened, so that the air directly enters the exhaust muffler 20 through the bypass valve 70 and is exhausted to the atmosphere, and the condition that the air enters the humidifier 63 and the stack 10 again to cause pressure difference between the stack 10 and cause damage is avoided. Wherein, if the pressure difference is too large, the surge phenomenon can occur in the air compressor 61, and then the air compressor 61 is damaged.
Specifically, the fuel cell air management system further includes a back pressure valve 80, and the back pressure valve 80 is provided on a line that communicates the second outlet of the humidifier 63 and the input of the exhaust muffler 20. The back pressure valve 80 is arranged on a pipeline which is communicated with the second outlet of the humidifier 63 and the input end of the exhaust muffler 20, so that the back pressure valve 80 can adjust the pressure difference of the pipeline at the second outlet of the electric pile 10 and the input end of the exhaust muffler 20, and the condition that the electric pile 10 generates large pressure difference to cause damage is avoided.
In the present embodiment, the fuel cell air management system further includes an air cleaner 66, a sensor group 67, and an intake muffler 68, and the air cleaner 66, the sensor group 67, the intake muffler 68, and the air compressor 61 are connected in this order. An air filter 66 is provided to first filter and clean the air entering the fuel cell air management system; an intake muffler 68 is provided to perform a sound attenuation process on the air. The sensor group 67 includes an air flow pressure sensor, a temperature sensor, and a humidity sensor, so that the flow pressure, temperature, and humidity of air can be detected in real time.
Optionally, the fuel cell air management system further comprises an alarm device, the alarm device is electrically connected with the control part, and when the fuel cell air management system is in a protection working condition, the control part controls the alarm device to send out an alarm signal to remind an operator of timely processing.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The air management system for the fuel cell is characterized by comprising a galvanic pile (10), an exhaust silencer (20), a first pressure sensor (30) and a second pressure sensor (40), wherein the output end of the galvanic pile (10) is communicated with the input end of the exhaust silencer (20), the output end of the exhaust silencer (20) is communicated with the atmosphere, the first pressure sensor (30) is arranged at the input end of the exhaust silencer (20), the second pressure sensor (40) is arranged at the output end of the exhaust silencer (20), the first pressure sensor (30) is used for detecting the pressure at the input end of the exhaust silencer (20), and the second pressure sensor (40) is used for detecting the pressure at the output end of the exhaust silencer (20).
2. The fuel cell air management system according to claim 1 further comprising a protection line (50), an input of said protection line (50) being in on-off communication with an output of said stack (10), an output of said protection line (50) being in communication with the atmosphere.
3. The fuel cell air management system according to claim 2 wherein the protection circuit (50) comprises a main circuit (51) and an emergency switch valve (52), an input of the main circuit (51) communicating with an output of the stack (10), an output of the main circuit (51) communicating with the atmosphere, the emergency switch valve (52) being disposed on the main circuit (51).
4. The fuel cell air management system according to claim 3 having a normal operating condition and a protection operating condition, the fuel cell air management system being in the normal operating condition with the emergency switching valve (52) closed in a state where a pressure difference between the first pressure sensor (30) and the second pressure sensor (40) is 6800 Pa-7200 Pa; and under the condition that the pressure difference value of the first pressure sensor (30) and the second pressure sensor (40) is less than 1000Pa, the fuel cell air management system is in the protection working condition, and the emergency switch valve (52) is opened.
5. The fuel cell air management system according to claim 3, further comprising a control portion, wherein the first pressure sensor (30), the second pressure sensor (40), and the emergency opening/closing valve (52) are electrically connected to the control portion, the control portion receives detection results of the first pressure sensor (30) and the second pressure sensor (40), and the control portion controls opening and closing of the emergency opening/closing valve (52).
6. The fuel cell air management system according to claim 1 further comprising an air compressor (61), an intercooler (62), and a humidifier (63), said humidifier (63) having a first inlet, a second inlet, a first outlet, and a second outlet, an input of said intercooler (62) communicating with an output of said air compressor (61), a first output of said intercooler (62) communicating with a first inlet of said humidifier (63), a first outlet of said humidifier (63) communicating with an input of said stack (10) on/off, an output of said stack (10) communicating with a second inlet of said humidifier (63) on/off, a second outlet of said humidifier (63) communicating with an input of said exhaust muffler (20).
7. The fuel cell air management system according to claim 6 further comprising a first shut-off valve (64) and a second shut-off valve (65), said first shut-off valve (64) being disposed in a line communicating a first outlet of said humidifier (63) and an input of said stack (10), said second shut-off valve (65) being disposed in a line communicating an output of said stack (10) and a second inlet of said humidifier (63).
8. The fuel cell air management system according to claim 6 further comprising a bypass valve (70), said bypass valve (70) being disposed on a line connecting a second output of said intercooler (62) and an input of said exhaust muffler (20).
9. The fuel cell air management system according to claim 6 further comprising a back pressure valve (80), said back pressure valve (80) being disposed on a line connecting a second outlet of said humidifier (63) and an input of said exhaust muffler (20).
10. The fuel cell air management system according to claim 6 further comprising an air filter (66), a sensor group (67), and an intake muffler (68), said air filter (66), said sensor group (67), said intake muffler (68), and said air compressor (61) being connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222468747.2U CN218414661U (en) | 2022-09-16 | 2022-09-16 | Fuel cell air management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222468747.2U CN218414661U (en) | 2022-09-16 | 2022-09-16 | Fuel cell air management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218414661U true CN218414661U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222468747.2U Active CN218414661U (en) | 2022-09-16 | 2022-09-16 | Fuel cell air management system |
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| CN (1) | CN218414661U (en) |
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2022
- 2022-09-16 CN CN202222468747.2U patent/CN218414661U/en active Active
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