A fuel cell hydrogen system test platform
By designing a fuel cell hydrogen system test platform that includes air supply unit, induction device, steam generator, fuel cell stack simulation equipment, water distributor and circulation pump, the problem of the inability of the prior art to test the adaptability of induction device and circulation pump in the hydrogen system is solved, and efficient and low-cost testing results are achieved.
Patent Information
- Application Number
- CN202420465447.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The existing fuel cell hydrogen system test platform cannot effectively test the adaptability between the induction ejector and the circulation pump in the hydrogen system.
A fuel cell hydrogen system test platform was designed, including a gas supply unit, an induction device, a steam generator, a fuel cell stack simulation device, a water divider and a circulation pump. It is connected through pipelines and controlled by solenoid valves to realize parallel and series testing of the induction device and the circulation pump.
The test platform can effectively test the adaptability of the induction in hydrogen system and the circulation pump, reducing the testing cost, and does not need to be tested directly on the fuel cell system, avoiding damage to expensive components.
Smart Images
Figure CN222749512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuel cell hydrogen system testing, in particular to a fuel cell hydrogen system testing platform. Background Art
[0002] The hydrogen system is an important component of the fuel cell engine. The ejector and gas circulation pump in the hydrogen system need to be screened out through testing and analysis. However, most of the existing testing platforms test and analyze the ejector and circulation pump separately, which makes it impossible to test and analyze the compatibility between the ejector and circulation pump. Utility Model Content
[0003] The purpose of the utility model is to provide a fuel cell hydrogen system test platform, which can test and analyze the adaptability of an ejector and a circulation pump in a hydrogen system.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a fuel cell hydrogen system test platform, including a gas supply unit, an ejector, a steam generator, a fuel cell stack simulation device, a water separator and a circulation pump, the fuel cell stack simulation device includes a tank body, a heating element connected to the tank body, the heating element is used to heat the tank body, the tank body has a gas inlet, a first gas outlet and a second gas outlet, the gas supply unit is connected to the high-pressure inlet of the ejector through a first pipeline, the gas outlet of the ejector is connected to the gas inlet of the steam generator through a second pipeline, the gas outlet of the steam generator is connected to the gas inlet through a third pipeline, the first gas outlet is connected to the gas inlet of the water separator through a fourth pipeline, the gas outlet of the water separator is connected to the low-pressure inlet of the ejector through a fifth pipeline, the second gas outlet is connected to a first exhaust pipe, the output end of the first exhaust pipe is connected to the atmosphere, and a throttle and a flow controller are provided on the first exhaust pipe;
[0005] Among them, one end of the fifth pipeline close to the water divider is connected to the air inlet of the circulation pump through the sixth pipeline, the air outlet of the circulation pump is connected to the second pipeline through the seventh pipeline, the seventh pipeline is connected to one end of the fifth pipeline close to the ejector through the eighth pipeline, the fifth pipeline, the sixth pipeline, the seventh pipeline and the eighth pipeline are all provided with solenoid valves, the solenoid valve on the fifth pipeline is located between the connection between the sixth pipeline and the fifth pipeline, and the connection between the eighth pipeline and the fifth pipeline, and the solenoid valve on the seventh pipeline is located between the connection between the eighth pipeline and the seventh pipeline, and the connection between the second pipeline and the seventh pipeline.
[0006] In a specific embodiment of the utility model, the heating element is a heating tube, the heating tube has an input port and an output port, the heating tube is arranged in the tank body, and the input port and the output port are located outside the tank body.
[0007] In a specific embodiment of the utility model, the water separator is further connected to a second exhaust pipe, the output end of the second exhaust pipe is connected to the atmosphere, and an exhaust valve is provided on the second exhaust pipe.
[0008] In a specific embodiment of the utility model, the water distributor is also connected to a drain pipe, the output end of the drain pipe is connected to the atmosphere, and a drain valve is provided on the drain pipe.
[0009] In a specific embodiment of the utility model, the gas supply unit includes a gas source and a gas distribution device, the gas source is connected to the gas distribution device via a ninth pipeline, the first pipeline connects the gas distribution device and the ejector, and the ninth pipeline is provided with a first-level pressure reducing valve, a first pressure sensor and a second pressure sensor, the first pressure sensor is located between the first-level pressure reducing valve and the gas source, and the second pressure sensor is located between the first-level pressure reducing valve and the gas distribution device.
[0010] In a specific embodiment of the present invention, flow meters are provided on the first pipeline and the fifth pipeline.
[0011] In a specific embodiment of the utility model, the second pipeline and the seventh pipeline are both provided with a third pressure sensor;
[0012] The fifth pipeline is provided with a fourth pressure sensor and a fifth pressure sensor. The fourth pressure sensor is located at the connection between the fifth pipeline and the sixth pipeline and between the water distributor. The fifth pressure sensor is located at the connection between the fifth pipeline and the eighth pipeline and between the solenoid valve.
[0013] In a specific embodiment of the utility model, the second pipeline and the fifth pipeline are both provided with temperature sensors. In the fifth pipeline, the temperature sensor is located at the connection between the fifth pipeline and the sixth pipeline and between the water distributor.
[0014] In a specific embodiment of the utility model, humidity sensors are provided on the third pipe and the fifth pipe. In the fifth pipe, the humidity sensor is located at the connection between the fifth pipe and the sixth pipe and between the water distributor.
[0015] In a specific embodiment of the utility model, the ejector is detachably connected to the first pipe and the second pipe.
[0016] The utility model provides a fuel cell hydrogen system test platform, which has the following beneficial effects compared with the prior art:
[0017] The sixth pipeline connects the air inlet of the circulation pump to the fifth pipeline, and the seventh pipeline connects the air outlet of the circulation pump to the second pipeline, that is, the air outlets of the ejector and the circulation pump are both connected to the second pipeline. By opening the solenoid valves on the fifth pipeline, the sixth pipeline, and the seventh pipeline, and closing the solenoid valve on the eighth pipeline, the ejector and the circulation pump can be tested in parallel; and the setting of the eighth pipeline connects the air outlet of the circulation pump to the fifth pipeline, that is, the air outlet of the circulation pump is connected to the low-pressure inlet of the ejector through the fifth pipeline. By closing the solenoid valves on the fifth pipeline and the seventh pipeline, and opening the solenoid valves on the sixth pipeline and the eighth pipeline, the ejector and the circulation pump can be tested in series. Based on this, the fuel cell hydrogen system test platform can test and analyze the adaptability of the ejector and the circulation pump in the hydrogen system. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural diagram of a fuel cell hydrogen system test platform according to an embodiment of the utility model;
[0019] Figure 2 It is a structural diagram of the coordination of a fuel cell stack simulation device, a third pipeline, a fourth pipeline and a first exhaust pipe in an embodiment of the utility model.
[0020] In the figure, 1, gas supply unit; 11, gas source; 12, gas distribution equipment; 2, ejector; 3, steam generator; 4, fuel cell stack simulation equipment; 41, tank; 42, heating element; 5, water distributor; 6, circulation pump; 101, first pipeline; 102, second pipeline; 103, third pipeline; 104, fourth pipeline; 105, fifth pipeline; 106, first exhaust pipe; 107, sixth pipeline; 108, seventh pipeline; 109, eighth pipeline; 1 10. Second exhaust pipe; 111. Drain pipe; 112. Ninth pipeline; 10. Throttle valve; 20. Flow controller; 30. Solenoid valve; 40. Exhaust valve; 50. Drain valve; 60. Primary pressure reducing valve; 70. Flow meter; 100. First pressure sensor; 200. Second pressure sensor; 300. Third pressure sensor; 400. Fourth pressure sensor; 500. Fifth pressure sensor; 600. Temperature sensor; 700. Humidity sensor. DETAILED DESCRIPTION
[0021] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0022] like Figure 1-2As shown, a fuel cell hydrogen system test platform of an embodiment of the utility model includes a gas supply unit 1, an ejector 2, a steam generator 3, a fuel cell stack simulation device 4, a water separator 5 and a circulation pump 6. The fuel cell stack simulation device 4 includes a tank body 41, a heating element 42 connected to the tank body 41, and the heating element 42 is used to heat the tank body 41. The tank body 41 has a gas inlet, a first gas outlet, and a second gas outlet. The gas supply unit 1 is connected to the high-pressure inlet of the ejector 2 through a first pipeline 101. The ejector The gas outlet of the steam generator 2 is connected to the gas inlet of the steam generator 3 through the second pipe 102, the gas outlet of the steam generator 3 is connected to the gas inlet through the third pipe 103, the first gas outlet is connected to the gas inlet of the water separator 5 through the fourth pipe 104, the gas outlet of the water separator 5 is connected to the low-pressure inlet of the ejector 2 through the fifth pipe 105, the second gas outlet is connected to the first exhaust pipe 106, the output end of the first exhaust pipe 106 is connected to the atmosphere, and the first exhaust pipe 106 is provided with a throttle 10 and a flow controller 20;
[0023] Among them, one end of the fifth pipeline 105 close to the water distributor 5 is connected to the air inlet of the circulation pump 6 through the sixth pipeline 107, the air outlet of the circulation pump 6 is connected to the second pipeline 102 through the seventh pipeline 108, the seventh pipeline 108 is connected to the end of the fifth pipeline 105 close to the ejector 2 through the eighth pipeline 109, the fifth pipeline 105, the sixth pipeline 107, the seventh pipeline 108 and the eighth pipeline 109 are all provided with solenoid valves 30, the solenoid valve 30 on the fifth pipeline 105 is located between the connection between the sixth pipeline 107 and the fifth pipeline 105, and the connection between the eighth pipeline 109 and the fifth pipeline 105, and the solenoid valve 30 on the seventh pipeline 108 is located between the connection between the eighth pipeline 109 and the seventh pipeline 108, and the connection between the second pipeline 102 and the seventh pipeline 108.
[0024] Specifically, the sixth pipeline 107 connects the air inlet of the circulation pump 6 to the fifth pipeline 105, and the seventh pipeline 108 connects the air outlet of the circulation pump 6 to the second pipeline 102, that is, the air outlets of the ejector 2 and the circulation pump 6 are both connected to the second pipeline 102, and the ejector 2 and the circulation pump 6 can be tested in parallel by opening the solenoid valves 30 on the fifth pipeline 105, the sixth pipeline 107, and the seventh pipeline 108, and closing the solenoid valve 30 on the eighth pipeline 109; and the setting of the eighth pipeline 109 connects the air outlet of the circulation pump 6 to the fifth pipeline 105, that is, the air outlet of the circulation pump 6 is connected to the low-pressure inlet of the ejector 2 through the fifth pipeline 105, and the ejector 2 and the circulation pump 6 can be tested in series by closing the solenoid valves 30 on the fifth pipeline 105 and the seventh pipeline 108, and opening the solenoid valves 30 on the sixth pipeline 107 and the eighth pipeline 109. Based on this, the fuel cell hydrogen system test platform can test and analyze the adaptability of the ejector 2 and the circulation pump 6 in the hydrogen system.
[0025] Among them, the function of the gas supply unit 1 is to provide gas for test analysis. The gas supply unit 1 includes a gas source 11 and a gas distribution device 12. The gas source 11 and the gas distribution device 12 are connected through a ninth pipeline 112. The first pipeline 101 connects the gas distribution device 12 and the ejector 2. The ninth pipeline 112 is provided with a first-level pressure reducing valve 60, a first pressure sensor 100 and a second pressure sensor 200. The first pressure sensor 100 is located between the first-level pressure reducing valve 60 and the gas source 11, and the second pressure sensor 200 is located between the first-level pressure reducing valve 60 and the gas distribution device 12. The setting of the first pressure sensor 100 and the second pressure sensor 200 is conducive to controlling the pressure of the gas output by the gas source 11; and the gas distribution device 12 includes a proportional valve or a gas injector, and the gas source 11 can be a gas source 11 that provides hydrogen, air or argon.
[0026] The function of the steam generator 3 is to replenish the moisture in the gas according to the test conditions and adjust the humidity of the gas. Based on this, humidity sensors 700 are provided on the third pipeline 103 and the fifth pipeline 105. In the fifth pipeline 105, the humidity sensor 700 is located at the connection between the fifth pipeline 105 and the sixth pipeline 107 and between the water separator 5. The humidity of the gas is accurately adjusted by the signal of the humidity sensor 700. The advantage of the fuel cell hydrogen system test platform using the steam generator 3 to adjust the humidity of the gas is that the steam generator 3 is a finished device and can be used directly. In addition, the fuel cell stack simulation device 4 does not need to have the gas humidity control function, which simplifies the structure of the fuel cell stack simulation device 4. The fuel cell stack simulation device 4 has the advantages of low manufacturing cost and convenient processing.
[0027] In the fuel cell stack simulation device 4, the heating element 42 is a heating tube, which has an input port and an output port. The heating tube is arranged in the tank body 41, and the input port and the output port are located outside the tank body 41. The heating tube heats the gas in the tank body 41 through hot water or hot steam. Preferably, the heating tube is a serpentine heating tube, which can improve the heating efficiency; and the throttle valve 10 is used to control the air pressure in the tank body 41 to simulate the flow resistance of the fuel cell stack, and the flow controller 20 is used to control the emission of the gas to simulate the amount of hydrogen consumed by the stack under the target working condition. In general, the setting of the fuel cell stack simulation device 4, the first exhaust pipe 106, the throttle valve 10 and the flow controller 20 can well simulate the working condition of the fuel cell stack. In addition, the adaptability of the ejector 2 and the circulation pump 6 can be tested and analyzed by the fuel cell stack simulation device 4, and it is not necessary to test directly on the fuel cell system, and expensive components such as the stack will not be damaged, and the test cost is low.
[0028] Among them, temperature sensors 600 are provided on the second pipeline 102 and the fifth pipeline 105. In the fifth pipeline 105, the temperature sensor 600 is located at the connection between the fifth pipeline 105 and the sixth pipeline 107 and between the water divider 5. The temperature sensor 600 can monitor the temperature of the gas before and after heating. The working parameters of the heating element 42 can be adjusted in real time according to the monitoring results, so that the gas temperature is within a preset range to ensure the test accuracy.
[0029] The water separator 5 is used to separate liquid water at the outlet of the fuel cell stack simulation device 4 to prevent the liquid water from entering the test device. Furthermore, the water separator 5 is also connected to a drain pipe 111, the output end of the drain pipe 111 is connected to the atmosphere, and a drain valve 50 is provided on the drain pipe 111. The function of the drain pipe 111 and the drain valve 50 is to discharge the liquid water separated by the water separator 5.
[0030] Furthermore, the water separator 5 is also connected to a second exhaust pipe 110, the output end of the second exhaust pipe 110 is connected to the atmosphere, and an exhaust valve 40 is provided on the second exhaust pipe 110, based on which gas can be released from the water separator 5 according to actual test conditions.
[0031] In this embodiment, flow meters 70 are provided on the first pipeline 101 and the fifth pipeline 105. The flow meters 70 are helpful for controlling the gas flow in the test condition.
[0032] The second pipeline 102 and the seventh pipeline 108 are both provided with a third pressure sensor 300, and the fifth pipeline 105 is provided with a fourth pressure sensor 400 and a fifth pressure sensor 500. The fourth pressure sensor 400 is located at the connection between the fifth pipeline 105 and the sixth pipeline 107 and between the water divider 5, and the fifth pressure sensor 500 is located at the connection between the fifth pipeline 105 and the eighth pipeline 109 and between the solenoid valve 30. The gas pressure of the ejector 2 and the circulating pump 6 during the test can be monitored by the third pressure sensor 300, the fourth pressure sensor 400 and the fifth pressure sensor 500, and the relevant parameters can be adjusted in real time according to the monitoring results to ensure the test accuracy.
[0033] As a preferred embodiment, the ejector 2 is detachably connected to the first pipe 101 and the second pipe 102. Based on this, when it is necessary to test and analyze the performance of the circulation pump 6 separately, the ejector 2 is removed, and then a straight pipe is used to replace the ejector 2 to connect the first pipe 101 and the second pipe 102.
[0034] In this embodiment, the solenoid valves 30 on the sixth pipeline 107, the seventh pipeline 108 and the eighth pipeline 109 are closed, and the fuel cell hydrogen system test platform can also test and analyze the ejector 2 separately.
[0035] In this embodiment, what are tested on the ejector 2 and the circulating pump 6 are the working parameters of the ejector 2 and the circulating pump 6 under the corresponding gas working conditions.
[0036] In summary, the fuel cell hydrogen system test platform of the utility model can perform separate test and analysis on the ejector 2 and the circulation pump 6, and can also test the compatibility between the ejector 2 and the circulation pump 6. The fuel cell hydrogen system test platform has various functions and does not require the use of other equipment to test and analyze the compatibility between the ejector 2 and the circulation pump 6, which is conducive to reducing equipment costs.
[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A fuel cell hydrogen system test platform, characterized in that: The invention comprises an air supply unit (1), an ejector (2), a steam generator (3), a fuel cell stack simulation device (4), a water separator (5) and a circulation pump (6); the fuel cell stack simulation device (4) comprises a tank body (41), a heating element (42) connected to the tank body (41), the heating element (42) being used to heat the tank body (41); the tank body (41) having a gas inlet, a first gas outlet and a second gas outlet; the air supply unit (1) is connected to the high-pressure inlet of the ejector (2) via a first pipeline (101); the gas outlet of the ejector (2) is connected to the steam generator (6); The air inlet of the steam generator (3) is connected through a second pipeline (102), the air outlet of the steam generator (3) is connected to the gas inlet through a third pipeline (103), the first gas outlet is connected to the air inlet of the water separator (5) through a fourth pipeline (104), the air outlet of the water separator (5) is connected to the low-pressure inlet of the ejector (2) through a fifth pipeline (105), the second gas outlet is connected to a first exhaust pipe (106), the output end of the first exhaust pipe (106) is connected to the atmosphere, and the first exhaust pipe (106) is provided with a throttle valve (10) and a flow controller (20); The end of the fifth pipeline (105) close to the water distributor (5) is connected to the air inlet of the circulation pump (6) through a sixth pipeline (107); the air outlet of the circulation pump (6) is connected to the second pipeline (102) through a seventh pipeline (108); the seventh pipeline (108) is connected to the end of the fifth pipeline (105) close to the ejector (2) through an eighth pipeline (109); the fifth pipeline (105), the sixth pipeline (107), the seventh pipeline (108) and the seventh pipeline (109) are connected to each other. The eight pipelines (109) are all provided with a solenoid valve (30); the solenoid valve (30) on the fifth pipeline (105) is located between the connection between the sixth pipeline (107) and the fifth pipeline (105) and the connection between the eighth pipeline (109) and the fifth pipeline (105); the solenoid valve (30) on the seventh pipeline (108) is located between the connection between the eighth pipeline (109) and the seventh pipeline (108) and the connection between the second pipeline (102) and the seventh pipeline (108); The ejector (2) is detachably connected to the first pipe (101) and the second pipe (102).
2. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The heating element (42) is a heating tube having an input port and an output port. The heating tube is arranged in the tank body (41), and the input port and the output port are located outside the tank body (41).
3. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The water distributor (5) is also connected to a second exhaust pipe (110), the output end of the second exhaust pipe (110) is in communication with the atmosphere, and the second exhaust pipe (110) is provided with an exhaust valve (40).
4. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The water distributor (5) is also connected to a drainage pipe (111), the output end of the drainage pipe (111) is in communication with the atmosphere, and a drainage valve (50) is provided on the drainage pipe (111).
5. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The gas supply unit (1) comprises a gas source (11) and a gas distribution device (12); the gas source (11) and the gas distribution device (12) are connected via a ninth pipeline (112); the first pipeline (101) connects the gas distribution device (12) and the ejector (2); a first pressure reducing valve (60), a first pressure sensor (100) and a second pressure sensor (200) are provided on the ninth pipeline (112); the first pressure sensor (100) is located between the first pressure reducing valve (60) and the gas source (11); and the second pressure sensor (200) is located between the first pressure reducing valve (60) and the gas distribution device (12).
6. The fuel cell hydrogen system test platform according to claim 5, characterized in that: The first pipeline (101) and the fifth pipeline (105) are both provided with flow meters (70).
7. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The second pipeline (102) and the seventh pipeline (108) are both provided with a third pressure sensor (300); The fifth pipeline (105) is provided with a fourth pressure sensor (400) and a fifth pressure sensor (500); the fourth pressure sensor (400) is located at the connection between the fifth pipeline (105) and the sixth pipeline (107) and between the water distributor (5); and the fifth pressure sensor (500) is located at the connection between the fifth pipeline (105) and the eighth pipeline (109) and between the solenoid valve (30).
8. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The second pipeline (102) and the fifth pipeline (105) are both provided with temperature sensors (600); in the fifth pipeline (105), the temperature sensor (600) is located between the connection between the fifth pipeline (105) and the sixth pipeline (107) and the water distributor (5).
9. The fuel cell hydrogen system test platform according to claim 1, characterized in that: The third pipe (103) and the fifth pipe (105) are provided with humidity sensors (700); in the fifth pipe (105), the humidity sensor (700) is located between the connection between the fifth pipe (105) and the sixth pipe (107) and the water distributor (5).