CN113782771A - Cooling circulation system and test bench for fuel cell engine - Google Patents
Cooling circulation system and test bench for fuel cell engine Download PDFInfo
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- CN113782771A CN113782771A CN202110996524.0A CN202110996524A CN113782771A CN 113782771 A CN113782771 A CN 113782771A CN 202110996524 A CN202110996524 A CN 202110996524A CN 113782771 A CN113782771 A CN 113782771A
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- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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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 disclosure relates to a cooling circulation system and a test bench for a fuel cell engine, the cooling circulation system including: the first flow path is used for being detachably communicated between a liquid outlet of the electric pile and a liquid inlet of the heat dissipation mechanism; the first flow path and the second flow path are used for forming a circulating flow path for circulating and flowing cooling liquid together with the electric pile and the heat dissipation mechanism, and the circulating flow path is provided with a circulating pump; the third flow path is communicated between the circulating flow path and the liquid supplementing tank, and the communication position of the third flow path and the liquid supplementing tank is positioned above the liquid level of cooling liquid in the liquid supplementing tank, so that gas in the circulating flow path is guided to the liquid supplementing tank to be discharged; and a fourth flow path that communicates between the fluid replacement tank and the circulation flow path and that communicates with the circulation flow path upstream of the circulation pump to guide the coolant in the fluid replacement tank to the circulation flow path. The working condition application range of the disclosure is wide and the working can be stable.
Description
Technical Field
The present disclosure relates to the field of engine performance testing, and in particular, to a cooling circulation system and a test bench for a fuel cell engine.
Background
When the hydrogen fuel cell engine is used for performance test and heat dissipation performance test of the heat dissipation mechanism, a hydrogen fuel engine performance test rack and a heat dissipation performance test rack of the heat dissipation mechanism need to be separately built, so that the investment cost is high, and the system structure is complex; and because a large amount of gas is generated in the test process, the normal circulation of cooling liquid is influenced, the cooling effect is reduced, and the test result of the fuel cell engine is influenced.
Disclosure of Invention
In order to solve the above technical problem, an object of the present disclosure is to provide a cooling circulation system and a test bench for a fuel cell engine, where the cooling circulation system has a wide working condition and a wide application range, can stably operate, and has good controllability and low cost.
In order to achieve the above object, the present disclosure provides a cooling circulation system for a fuel cell engine, the cooling circulation system including a first flow path, a second flow path, a third flow path, a fourth flow path, and a fluid replenishing tank, the first flow path being configured to detachably communicate between a fluid outlet of a stack and a fluid inlet of a heat dissipation mechanism, the second flow path being configured to detachably communicate between a fluid outlet of the heat dissipation mechanism and a fluid inlet of the stack, the first flow path and the second flow path being configured to form a circulation flow path for circulating a cooling fluid together with the stack and the heat dissipation mechanism, the circulation flow path being provided with a circulation pump, the third flow path being configured to communicate between the circulation flow path and the fluid replenishing tank, and a communication position of the third flow path and the fluid replenishing tank being above a fluid level of the cooling fluid in the fluid replenishing tank, so as to guide a gas in the circulation flow path to the fluid replenishing tank for discharging, the fourth flow path communicates between the fluid replacement tank and the circulation flow path and a communication point of the fourth flow path with the circulation flow path is located upstream of the circulation pump to guide the coolant in the fluid replacement tank to the circulation flow path.
Optionally, cooling circulation system still includes the liquid reserve tank, communicates be in the circulation flow path with feed liquor flow path and intercommunication between the liquid reserve tank are in the circulation flow path with go out the liquid flow path between the liquid reserve tank, be provided with drain valve and drain pump on the feed liquor flow path, be provided with feed water pump and feed water valve on going out the liquid flow path, wherein, be provided with first control valve in the fourth flow path.
Optionally, a second control valve is arranged at one end, close to the liquid outlet of the stack, of the first flow path, a third control valve is arranged at one end, close to the liquid inlet of the heat dissipation mechanism, of the first flow path, a fourth control valve is arranged at one end, close to the liquid outlet of the heat dissipation mechanism, of the second flow path, and a fifth control valve is arranged at one end, close to the liquid inlet of the stack, of the second flow path.
Optionally, the cooling circulation system further comprises a detection controller for supplying a high voltage and a low voltage to the fuel cell engine, the detection controller having a first flow passage communicated in the first flow passage and a second flow passage communicated in the second flow passage.
Optionally, the first flow path includes a first pipeline disposed between the electric pile and the detection controller and a second pipeline disposed between the detection controller and the heat dissipation mechanism, the second flow path includes a third pipeline disposed between the heat dissipation mechanism and the detection controller and a fourth pipeline disposed between the detection controller and the electric pile, the liquid inlet flow path communicates with the first pipeline, and the liquid outlet flow path communicates with the second pipeline.
Optionally, the cooling circulation system further includes a fifth flow path, the fifth flow path is communicated between the circulation flow path and the fluid infusion tank, and a communication position of the fifth flow path and the fluid infusion tank is located above a liquid level of the cooling liquid in the fluid infusion tank, the fifth flow path is communicated with one end of the first flow path close to the stack, and the third flow path is communicated with one end of the second flow path close to the heat dissipation mechanism.
Optionally, the circulation pump is provided on the first flow path, and a communication of the fifth flow path with the first flow path is upstream of a communication of the fourth flow path with the first flow path.
Optionally, an exhaust port is arranged at the top end of the liquid replenishing tank.
Optionally, a fluid infusion port is arranged at the top end of the fluid infusion tank.
Another aspect of the present disclosure also provides a test bench for a fuel cell engine, including a test platform and a cooling circulation system as described above, the cooling circulation system being configured to be detachably connected to a stack and a heat dissipation mechanism of the fuel cell engine, the test platform being configured to be electrically connected to the fuel cell engine for performance testing of the stack and the heat dissipation mechanism.
Through the technical scheme, namely the cooling circulation system for the fuel cell engine, which is provided by the disclosure, the electric pile, the heat dissipation mechanism, the first flow path and the second flow path jointly form the circulation flow path for the cooling liquid to circularly flow, and the detachable connection between the first flow path and the electric pile and the heat dissipation mechanism can be used for simultaneously realizing the performance test of the electric pile and the performance test of the heat dissipation mechanism, so that the cooling circulation system is wide in application range. In addition, the gas in the circulation flow path can be guided to the liquid replenishing tank through the third flow path and discharged. In the specific work, the circulating pump drives the cooling liquid in the circulating flow path to circularly flow, namely, the cooling liquid flows from the liquid outlet of the electric pile to the heat dissipation mechanism through the first flow path and flows from the liquid outlet of the heat dissipation mechanism to the electric pile through the second flow path, meanwhile, the circulating pump drives the cooling liquid in the liquid supplementing box to flow from the liquid supplementing box to the circulating flow path through the fourth flow path, and a large amount of gas is generated while the cooling liquid circularly flows in the circulating flow path to absorb heat generated by the electric pile, and after the electric pile or the heat dissipation mechanism is replaced, a large amount of gas exists in a cooling liquid flow channel in the electric pile or the heat dissipation mechanism due to a cavity, so that the gas is guided to the liquid supplementing box to be discharged from the circulating flow path along with the cooling liquid through the third flow path, and the normal circulating flow of the cooling liquid is prevented from being influenced by the gas, the cooling effect of the circulating flow path can be enhanced, and the stable work of the whole cooling circulating system is ensured. Therefore, the cooling circulation system for the fuel cell engine provided by the disclosure has a wide application range, can be simultaneously suitable for performing performance tests on the electric pile and the heat dissipation mechanism, can stably work, and has good controllability and low cost.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic block diagram of a cooling cycle system for a fuel cell engine provided in an exemplary embodiment of the present disclosure.
Description of the reference numerals
1-electric pile; 2-detecting a controller; 3-a heat dissipation mechanism; 4-a first pipeline; 5-a second pipeline; 6-a third pipeline; 7-a fourth pipeline; 8-liquid supplement box; 9-a fourth flow path; 10-a third flow path; 11-a liquid storage tank; 12-a liquid inlet flow path; 13-liquid outlet flow path; 14-a circulation pump; 15-a second control valve; 16-a third control valve;
17-a fourth control valve; 18-a fifth control valve; 19-a first control valve; 20-fluid infusion port; 21-an exhaust port;
22-fifth flow path; 23-a drain valve; 24-a drain pump; 25-water supply pump; 26-water supply valve; 27-test platform.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, "inner and outer" refer to inner and outer relative to the contour of the component or structure itself. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.
According to a first aspect of the present disclosure, there is provided a cooling circulation system for a fuel cell engine, referring to fig. 1, the cooling circulation system includes a first flow path, a second flow path, a third flow path 10, a fourth flow path 9 and a liquid supplementing tank 8, the first flow path is used for detachably communicating between a liquid outlet of a stack 1 and a liquid inlet of a heat dissipation mechanism 3, the second flow path is used for detachably communicating between a liquid outlet of the heat dissipation mechanism 3 and a liquid inlet of the stack 1, the first flow path and the second flow path are used for forming a circulation flow path for circulating a cooling liquid together with the stack 1 and the heat dissipation mechanism 3, a circulation pump 14 is disposed on the circulation flow path, the third flow path 10 is communicated between the circulation flow path and the liquid supplementing tank 8, and the communication position of the third flow path 10 and the liquid supplementing tank 8 is above the liquid level of the cooling liquid in the liquid supplementing tank 8, so as to guide the gas in the circulation flow path to the liquid supplementing tank 8 for discharging, the fourth flow path 9 communicates between the replenishment tank 8 and the circulation flow path and the communication of the fourth flow path 9 with the circulation flow path is located upstream of the circulation pump 14 to guide the coolant in the replenishment tank 8 to the circulation flow path.
Through the technical scheme, namely the cooling circulation system for the fuel cell engine, which is provided by the disclosure, the electric pile 1, the heat dissipation mechanism 3, the first flow path and the second flow path jointly form a circulation flow path for circulating and flowing cooling liquid, and the first flow path and the second flow path are detachably connected with the electric pile 1 and the heat dissipation mechanism 3, so that the performance test of the electric pile 1 and the performance test of the heat dissipation mechanism 3 can be simultaneously realized, and the application range is wide. Further, the gas in the circulation flow path can be guided to the fluid replacement tank 8 through the third flow path 10 and discharged. In the specific work, the circulating pump 14 drives the cooling liquid in the circulating flow path to circularly flow, that is, the cooling liquid flows from the liquid outlet of the electric pile 1 to the heat dissipation mechanism 3 through the first flow path, and flows from the liquid outlet of the heat dissipation mechanism 3 to the electric pile 1 through the second flow path, at the same time, the circulating pump 14 drives the cooling liquid in the liquid supplementing tank 8 to flow from the liquid supplementing tank 8 to the circulating flow path through the fourth flow path 9, and a large amount of gas is generated at the same time when the cooling liquid circularly flows in the circulating flow path to absorb the heat generated by the electric pile 1, and after the electric pile 1 or the heat dissipation mechanism 3 is replaced, a large amount of gas exists in the cooling liquid flow path in the electric pile 1 or the heat dissipation mechanism 3 due to the cavity, so that the gas passes through the third flow path 10 and the communication position of the third flow path 10 and the liquid supplementing tank 8 is above the liquid level of the cooling liquid in the liquid supplementing tank 8, which is beneficial to lead the gas to the cooling liquid from the circulating flow path to the liquid supplementing tank 8 to discharge, the normal circulating flow of the cooling liquid is prevented from being influenced by gas, the cooling effect of the circulating flow path can be enhanced, and the stable work of the whole cooling circulating system is ensured. Therefore, the cooling circulation system for the fuel cell engine provided by the disclosure has a wide application range, can be simultaneously suitable for performing performance tests on the electric pile 1 and the heat dissipation mechanism 3, can stably work, and has good controllability and low cost.
The cooling liquid may be deionized water, or other cooling liquids that can achieve a heat dissipation effect through a heat exchange manner, which is not specifically limited in this disclosure. The heat dissipation mechanism 3 for performance detection may be an air-cooled heat sink on the fuel cell engine, including a heat dissipation fan and a heat dissipation fin, and the heat of the coolant in the circulation flow path is dissipated by air cooling. Of course, the heat dissipation mechanism 3 for performance detection may also be a water-cooled heat sink, which is not specifically limited in this disclosure.
It is considered that the coolant is discharged into the sewer to cause a serious waste when the stack 1 or the heat dissipation mechanism 3 is replaced for a new round of test. Therefore, in some embodiments, referring to fig. 1, the cooling circulation system further includes a liquid storage tank 11, an inlet liquid flow path 12 communicating between the circulation flow path and the liquid storage tank 11, and an outlet liquid flow path 13 communicating between the circulation flow path and the liquid storage tank 11, a drain valve 23 and a drain pump 24 are provided on the inlet liquid flow path 12, a water supply pump 25 and a water supply valve 26 are provided on the outlet liquid flow path 13, and a first control valve 19 is provided in the fourth flow path 9. Thus, when the stack 1 or the heat dissipation mechanism 3 needs to be replaced, the first control valve 19 is closed, the drain valve 23 and the drain pump 24 are opened, the cooling liquid in the circulating flow path is guided into the liquid storage tank 11, and the stack 1 and the heat dissipation mechanism 3 are replaced after the cooling liquid in the circulating flow path enters the liquid storage tank 11, so that waste of the cooling liquid is avoided, and the cost is saved. In addition, the liquid outlet flow path 13 is provided with the water supply pump 25 and the water supply valve 26, so that when the circulating cooling liquid amount is insufficient after a large amount of gas is discharged from the circulating flow path, the water supply pump 25 and the water supply valve 26 are started, the cooling liquid in the liquid storage tank 11 can be quickly pumped into the circulating flow path, the liquid supplementing speed is higher, the efficiency is high, and the stable work of the cooling circulating system can be ensured. A pressure sensor or a flow rate sensor may be provided in the circulation flow path to detect the pressure, flow rate, and the like of the water flow in the circulation flow path, and the detected signal may be fed back to, for example, an upper computer, and the water supply pump 25 or the water supply valve 26 may be controlled to be opened by the upper computer. Alternatively, a pressure gauge, a flow meter, or the like may be provided in the circulation flow path, and water supply valve 26 may be a manual valve in which water supply pump 25 or water supply valve 26 is manually opened. The drain valve 23 may be an electrically operated valve or a manually operated valve, and the present disclosure is not limited thereto.
In some specific embodiments, referring to fig. 1, a second control valve 15 is disposed at an end of the first flow path close to the liquid outlet of the stack 1, a third control valve 16 is disposed at an end of the first flow path close to the liquid inlet of the heat dissipation mechanism 3, a fourth control valve 17 is disposed at an end of the second flow path close to the liquid outlet of the heat dissipation mechanism 3, and a fifth control valve 18 is disposed at an end of the second flow path close to the liquid inlet of the stack 1, so that all the cooling liquid in the circulation flow path does not need to be discharged into the liquid storage tank 11 when the stack 1 or the heat dissipation mechanism 3 is replaced, and the working efficiency is improved. In specific work, when the galvanic pile 1 needs to be replaced, the circulating pump 14, the first control valve 19, the third control valve 16, the fourth control valve 17 and the fifth control valve 18 are closed, the drain valve 23 and the drain pump 24 are opened, after all cooling liquid remained in the galvanic pile 1 is drained into the liquid storage tank 11, the second control valve 15, the drain valve 23 and the drain pump 24 are closed, and another group of galvanic pile 1 is replaced for testing; when the heat dissipation mechanism 3 needs to be replaced, the circulation pump 14, the first control valve 19, the second control valve 15, the fourth control valve 17 and the fifth control valve 18 are closed, the drain valve 23 and the drain pump 24 are opened, after all the cooling liquid remaining in the heat dissipation mechanism 3 is drained into the liquid storage tank 11, the third control valve 16, the drain valve 23 and the drain pump 24 are closed, and another group of heat dissipation mechanisms 3 is replaced for testing. The first control valve 19, the second control valve 15, the third control valve 16, the fourth control valve 17, and the fifth control valve 18 may be electrically operated valves or manually operated valves, which is not limited in this disclosure.
In some embodiments, referring to fig. 1, the cooling circulation system further includes a detection controller 2 for providing high-voltage and low-voltage electricity to the fuel cell engine, the detection controller 2 has a first flow passage communicated in the first flow passage and a second flow passage communicated in the second flow passage, so that the high-voltage component and the low-voltage component of the fuel cell engine can be powered by the detection controller 2, for example, the electric components of the stack 1 and the heat dissipation mechanism 3 can be powered for testing the performance of the stack 1 and the heat dissipation mechanism 3 by a testing platform 27 (to be described later). The detection controller 2 may employ a DC-DC converter.
In some embodiments, as shown with reference to fig. 1, the first flow path includes a first pipe 4 disposed between the stack 1 and the detection controller 2 and a second pipe 5 disposed between the detection controller 2 and the heat dissipation mechanism 3, and the second flow path includes a third pipe 6 disposed between the heat dissipation mechanism 3 and the detection controller 2 and a fourth pipe 7 disposed between the detection controller 2 and the stack 1. The liquid inlet flow path 12 is connected to the first pipe 4, and the liquid outlet flow path 13 is connected to the second pipe 5.
In order to ensure better cooling effect of the cooling circulation system, in some embodiments, referring to fig. 1, the cooling circulation system further includes a fifth flow path 22, the fifth flow path 22 is communicated between the circulation flow path and the fluid replacement tank 8, and the communication position of the fifth flow path 22 and the fluid replacement tank 8 is located above the level of the cooling fluid in the fluid replacement tank 8, the fifth flow path 22 is communicated with one end of the first flow path close to the cell stack 1, and the third flow path 10 is communicated with one end of the second flow path close to the heat dissipation mechanism 3, so that when the cooling fluid flows through the cell stack 1, a large amount of gas generated due to heat absorption and gas existing in the cooling fluid flow path of the cell stack 1 after the cell stack 1 is replaced can be discharged into the fluid replacement tank 8 through the fifth flow path 22; when the coolant flows through the heat radiation mechanism 3, gas present in the coolant flow passage in the heat radiation mechanism 3 can be discharged into the fluid replenishment tank 8 via the third flow passage 10. Therefore, gas can be rapidly discharged from the circulating flow path, the gas is prevented from influencing the normal circulating flow of the cooling liquid, the enhancement of the cooling effect can be facilitated, and the stable work of the whole cooling circulating system is ensured.
In some embodiments, referring to fig. 1, the circulation pump 14 is disposed on the first flow path, and a communication position of the fifth flow path 22 and the first flow path is located upstream of a communication position of the fourth flow path 9 and the first flow path, so as to facilitate efficient circulation of the cooling liquid in the cooling circulation system along a flow direction of the cooling liquid under the driving of the circulation pump 14, and ensure stable operation of the entire cooling circulation system. It should be noted here that fig. 1 exemplarily shows the flow direction of the cooling liquid, and the arrow points to, i.e., is the flow direction of the cooling liquid.
In some embodiments, referring to fig. 1, an exhaust port 21 is provided at the top end of the fluid infusion tank 8, and the exhaust port 21 is in a long-open state, so that when gas generated in the circulation flow path is exhausted into the fluid infusion tank 8, the gas can be timely exhausted out of the fluid infusion tank 8, and the cooling liquid in the cooling circulation system can be ensured to flow in a circulating manner with high efficiency, thereby achieving the optimal cooling effect.
In some embodiments, referring to fig. 1, the top end of the fluid replacement tank 8 is further provided with a fluid replacement port 20, and the fluid replacement port 20 is connected to an external cooling fluid source for supplying cooling fluid into the fluid replacement tank 8. In addition, a liquid level sensor may be provided in the replenishment tank 8 to monitor the liquid level of the replenishment tank 8 in real time, so that the replenishment tank can be replenished with the cooling liquid in a timely manner.
The operation process of the cooling circulation system is shown in fig. 1, and specifically as follows: under the guidance of the circulating pump 14, the cooling liquid flows back to the liquid supplementing tank 8 from the liquid outlet of the liquid supplementing tank 8, the fourth flow path 9, the first control valve 19, the first pipeline 4, the circulating pump 14, the first flow path inside the detection controller 2, the second pipeline 5, the third control valve 16, the liquid inlet of the heat dissipation mechanism 3, the liquid outlet of the heat dissipation mechanism 3, the third pipeline 6, one path of the cooling liquid flows back to the liquid supplementing tank 8 from the third flow path 10 so as to discharge the gas in the circulating flow path and the heat dissipation mechanism 3 to the liquid supplementing tank 8 (the gas is discharged through the exhaust port 21), the other path of the cooling liquid flows back to the liquid supplementing tank 8 from the fourth control valve 17, the second flow path inside the detection controller 2, the fourth pipeline 7, the fifth control valve 18, the liquid inlet of the electric pile 1, the liquid outlet of the electric pile 1, the first pipeline 4, the second control valve 15, one path of the cooling liquid flows back to the liquid supplementing tank 8 from the fifth flow path 22, the gas in the circulation flow path and the cell stack 1 is discharged to the liquid replenishing tank 8 (the gas is discharged through the gas discharge port 21), and the other flow path and the coolant from the fourth flow path 9 are flowed to the circulation pump 14 in common, and the above circulation process is repeated. In addition, when the cooling system is used for the first time, the drain valve 23, the drain pump 24, the water supply pump 25 and the water supply valve 26 are opened while the control valves are opened, a certain amount of cooling liquid is filled into the liquid storage tank 11 and the cooling liquid is filled into the circulation flow path, and therefore, when the cooling liquid in the circulation flow path is reduced in the later period, the cooling liquid can be rapidly supplied to the circulation flow path through the liquid storage tank. Wherein, the liquid storage tank 11 can be provided with a liquid level meter or a liquid level sensor to monitor the liquid level of the liquid storage tank 11 in real time, and the drain valve 23, the drain pump 24, the water supply pump 25 or the water supply valve 26 are selectively closed through the liquid level value.
According to the second aspect of the present disclosure, there is also provided a test bench for a fuel cell engine, comprising a test platform 27 and the cooling circulation system described above, the cooling circulation system being configured to be detachably connected to the stack 1 and the heat dissipation mechanism 3 of the fuel cell engine, the test platform 27 being configured to be electrically connected to the fuel cell engine for performance testing of the stack 1 and the heat dissipation mechanism 3. The test bench has wide application range, can stably work, has good controllability and low cost, has all the beneficial effects of the cooling circulation system, and is not repeated in the disclosure. The test platform 27 can adopt a hydrogen fuel cell engine test platform, and can meet the following test functions, such as A and starting characteristic tests; B. testing rated power; C. testing the peak power; D. testing the dynamic response characteristic; E. testing the steady-state characteristic; F. testing an emergency shutdown function; G. testing air tightness; H. testing the insulation resistance; I. testing the quality of the system; J. testing reliability and durability to meet the requirements; K. and (4) testing the efficiency of the fuel cell engine system. Meanwhile, the testing platform 27 may be used to test the performance of the heat dissipation mechanism 3, for example, a temperature sensor is disposed at the liquid inlet and the liquid outlet of the heat dissipation mechanism 3, and the performance of the heat dissipation mechanism 3 is fed back through these elements.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A cooling circulation system for a fuel cell engine is characterized by comprising a first flow path, a second flow path, a third flow path (10), a fourth flow path (9) and a liquid supplementing tank (8), wherein the first flow path is used for being detachably communicated between a liquid outlet of a galvanic pile (1) and a liquid inlet of a heat dissipation mechanism (3), the second flow path is used for being detachably communicated between a liquid outlet of the heat dissipation mechanism (3) and a liquid inlet of the galvanic pile (1), the first flow path and the second flow path are used for forming a circulation flow path for circulating and flowing cooling liquid together with the galvanic pile (1) and the heat dissipation mechanism (3), a circulation pump (14) is arranged on the circulation flow path, the third flow path (10) is communicated between the circulation flow path and the liquid supplementing tank (8), and the communication position of the third flow path (10) and the liquid supplementing tank (8) is positioned above the liquid level of the cooling liquid in the liquid supplementing tank (8), for guiding the gas in the circulation flow path into the liquid supplementing box (8) to be discharged, wherein the fourth flow path (9) is communicated between the liquid supplementing box (8) and the circulation flow path, and the communication position of the fourth flow path (9) and the circulation flow path is positioned at the upstream of the circulation pump (14) so as to guide the cooling liquid in the liquid supplementing box (8) to the circulation flow path.
2. The cooling cycle system for a fuel cell engine according to claim 1, further comprising a liquid storage tank (11), an intake liquid flow path (12) communicating between the circulation flow path and the liquid storage tank (11), and a liquid outlet flow path (13) communicating between the circulation flow path and the liquid storage tank (11), a drain valve (23) and a drain pump (24) being provided on the intake liquid flow path (12), a water supply pump (25) and a water supply valve (26) being provided on the liquid outlet flow path (13), wherein a first control valve (19) is provided in the fourth flow path (9).
3. The cooling cycle system for the fuel cell engine according to claim 2, wherein a second control valve (15) is provided at an end of the first flow path close to the liquid outlet of the stack (1), a third control valve (16) is provided at an end of the first flow path close to the liquid inlet of the heat dissipation mechanism (3), a fourth control valve (17) is provided at an end of the second flow path close to the liquid outlet of the heat dissipation mechanism (3), and a fifth control valve (18) is provided at an end of the second flow path close to the liquid inlet of the stack (1).
4. The cooling cycle system for a fuel cell engine according to claim 2, further comprising a detection controller (2) for supplying a high voltage and a low voltage to the fuel cell engine, the detection controller (2) having a first flow passage communicating in the first flow passage and a second flow passage communicating in the second flow passage.
5. The cooling cycle system for a fuel cell engine according to claim 4, wherein the first flow path includes a first line (4) provided between the stack (1) and the detection controller (2) and a second line (5) provided between the detection controller (2) and the heat dissipation mechanism (3), the second flow path includes a third line (6) provided between the heat dissipation mechanism (3) and the detection controller (2) and a fourth line (7) provided between the detection controller (2) and the stack (1), the inlet flow path (12) communicates with the first line (4), and the outlet flow path (13) communicates with the second line (5).
6. The cooling cycle system for a fuel cell engine according to claim 1, further comprising a fifth flow path (22), wherein the fifth flow path (22) is communicated between the circulation flow path and the fluid supply tank (8), and the communication between the fifth flow path (22) and the fluid supply tank (8) is located above the level of the cooling fluid in the fluid supply tank (8), the fifth flow path (22) is communicated with one end of the first flow path close to the stack (1), and the third flow path (10) is communicated with one end of the second flow path close to the heat dissipation mechanism (3).
7. The cooling cycle system for a fuel cell engine according to claim 6, wherein the circulation pump (14) is provided on the first flow path, and a communication of the fifth flow path (22) with the first flow path is upstream of a communication of the fourth flow path (9) with the first flow path.
8. The cooling cycle system for a fuel cell engine according to claim 1, wherein a top end of the replenishment tank (8) is provided with an exhaust port (21).
9. The cooling cycle system for a fuel cell engine according to claim 1, characterized in that a top end of the replenishment tank (8) is provided with a replenishment port (20).
10. A test rig for a fuel cell engine, characterized by comprising a test platform (27) and a cooling circulation system according to any of claims 1-9 for detachable connection to a stack (1) and a heat sink mechanism (3) of a fuel cell engine, the test platform (27) being adapted to be electrically connected to the fuel cell engine for performance testing of the stack (1) and the heat sink mechanism (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110996524.0A CN113782771A (en) | 2021-08-27 | 2021-08-27 | Cooling circulation system and test bench for fuel cell engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110996524.0A CN113782771A (en) | 2021-08-27 | 2021-08-27 | Cooling circulation system and test bench for fuel cell engine |
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| CN113782771A true CN113782771A (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110996524.0A Pending CN113782771A (en) | 2021-08-27 | 2021-08-27 | Cooling circulation system and test bench for fuel cell engine |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761381A (en) * | 2010-03-01 | 2010-06-30 | 北汽福田汽车股份有限公司 | Engine cooling system and auxiliary water tank for same |
| CN206313044U (en) * | 2017-01-06 | 2017-07-07 | 东莞氢宇新能源科技有限公司 | A kind of fuel cell monitor station platform discharge cycle system and structure |
| CN110137622A (en) * | 2019-05-22 | 2019-08-16 | 深圳创维空调科技有限公司 | Battery cooling system and electric motor coach |
-
2021
- 2021-08-27 CN CN202110996524.0A patent/CN113782771A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761381A (en) * | 2010-03-01 | 2010-06-30 | 北汽福田汽车股份有限公司 | Engine cooling system and auxiliary water tank for same |
| CN206313044U (en) * | 2017-01-06 | 2017-07-07 | 东莞氢宇新能源科技有限公司 | A kind of fuel cell monitor station platform discharge cycle system and structure |
| CN110137622A (en) * | 2019-05-22 | 2019-08-16 | 深圳创维空调科技有限公司 | Battery cooling system and electric motor coach |
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Application publication date: 20211210 Assignee: Beijing Yinuo Jinxin Technology Co.,Ltd. Assignor: Beijing hydrogen New Energy Technology Co.,Ltd. Contract record no.: X2021110000045 Denomination of invention: Cooling cycle system and test bench for fuel cell engine License type: Common License Record date: 20211101 |
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Application publication date: 20211210 |
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