Fuel cell air compressor test system

Abstract

The utility model relates to the technical field of air compressors, and discloses a fuel cell air compressor test system which comprises a first air supply module, a first exhaust module, a second air supply module, a second exhaust module and a cooling system. The first air supply module comprises a first air inlet pipeline, a first nitrogen inlet pipeline, a first air supply pipeline and a first temperature control device, the first ends of the first air inlet pipeline and the first nitrogen inlet pipeline are both communicated with the first end of the first air supply pipeline, and the second end of the first air supply pipeline is used for being communicated with an air inlet of a tested air compressor; the first temperature control device is arranged on the first air supply pipeline. The second air supply module comprises a second air inlet pipeline, a second nitrogen inlet pipeline, an air supply compressor, a second temperature control device and a second air supply pipeline, the second air inlet pipeline and the second nitrogen inlet pipeline are both communicated with the second air supply pipeline, and the air supply compressor and the second temperature control device are both arranged on the second air inlet pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a fuel cell air compressor testing system. Background Art

[0002] Proton exchange membrane fuel cells (PEMFCs) are devices that convert hydrogen into electricity. Their high energy conversion efficiency and environmental friendliness make them a promising hydrogen-consuming carrier for the future. The complex application environment of the fuel cell and its components hinders commercialization. System commercialization primarily relies on long-term reliable operation, which in turn relies on component performance and quality standards. Environmental adaptability testing of key system components—air compressors—is crucial for verifying their performance. Existing air compressor test benches only control single functions such as intake pressure, temperature, or humidity, and cannot control the composition of the compressor's intake gas.

[0003] Therefore, there is an urgent need for a fuel cell air compressor testing system to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a fuel cell air compressor test system, which can change the intake gas composition of the tested air compressor and adjust the intake air temperature.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] a first air supply module, comprising a first air intake pipeline, a first nitrogen intake pipeline, a first air supply pipeline, and a first temperature control device, wherein the first ends of the first air intake pipeline and the first nitrogen intake pipeline are both in communication with the first end of the first air supply pipeline, the first air intake pipeline and the first nitrogen intake pipeline are both provided with a control valve, the second end of the first air supply pipeline is used to communicate with the air inlet of the tested compressor, and the first temperature control device is provided on the first air supply pipeline;

[0007] a first exhaust module comprising a first exhaust pipeline connected to an outlet of the compressor under test;

[0008] a second air supply module, comprising a second air intake pipeline, a second nitrogen intake pipeline, an air supply compressor, a second temperature control device, and a second air supply pipeline, wherein the second air intake pipeline and the second nitrogen intake pipeline are both connected to the second air supply pipeline, the second air intake pipeline and the second nitrogen intake pipeline are both provided with a control valve, the air supply compressor and the second temperature control device are both provided on the second air intake pipeline, and a second end of the second air supply pipeline is used to communicate with an air inlet of the turbine under test;

[0009] a second exhaust module including a second exhaust line connected to an exhaust port of the turbine under test;

[0010] A cooling system supplies cooling medium to the cooling flow passages of the tested compressor and / or the air supply compressor.

[0011] As an improvement to the above technical solution, the first air supply module further includes a first container, the first ends of the first air intake pipeline and the first nitrogen intake pipeline are both connected to the first container, and the first end of the first air supply pipeline is connected to the first container;

[0012] The second air supply module further includes a second container, the first ends of the second air intake pipeline and the second nitrogen intake pipeline are both connected to the second container, and the first end of the second air supply pipeline is connected to the second container.

[0013] As an improvement of the above technical solution, the first gas supply module further includes a first atomizer, which is provided on the first container and is used to humidify the gas in the first container;

[0014] The second gas supply module further includes a second atomizer, which is disposed on the second container and is used to humidify the gas in the second container.

[0015] As an improvement of the above technical solution, the first air supply module further includes a vacuum pump, and the air inlet of the vacuum pump is connected to the first container.

[0016] As an improvement of the above technical solution, the first exhaust module further includes a third temperature control device, and the third temperature control device is arranged on the first exhaust pipeline.

[0017] As an improvement to the above technical solution, the first temperature control device includes a first heat exchanger and a first temperature control system, the first heat exchanger is arranged on the first gas supply pipeline, and the first temperature control system is used to supply heat exchange medium to the first heat exchanger;

[0018] The second temperature control device includes a second heat exchanger and a second temperature control system, the second heat exchanger is arranged on the second air intake pipeline, and the second temperature control system is used to supply heat exchange medium to the second heat exchanger;

[0019] The third temperature control device includes a third heat exchanger and a third temperature control system. The third heat exchanger is arranged on the first exhaust pipeline. The third temperature control system is used to supply heat exchange medium to the third heat exchanger.

[0020] As an improvement to the above technical solution, the first air supply module further includes a first sensor group, which is arranged on a connecting pipe between the first heat exchanger and the compressor under test, and includes a first temperature sensor, a first pressure sensor, a first humidity sensor, and a first oxygen concentration sensor;

[0021] The first exhaust module further includes a second sensor group and a third sensor group, wherein the second sensor group is arranged on the connecting pipeline between the compressor under test and the third temperature control device, and the second sensor group includes a second pressure sensor and a second temperature sensor; the third sensor group is arranged at the air outlet of the third temperature control device, and the third sensor group includes a third pressure sensor and a third temperature sensor;

[0022] The second air supply module further includes a fourth sensor group, which is arranged on the second air supply pipeline, and the fourth sensor group includes a fourth temperature sensor, a fourth pressure sensor, a second humidity sensor and a second oxygen concentration sensor;

[0023] The second exhaust module further includes a fifth sensor group, which is disposed on the second exhaust pipe and includes a fifth pressure sensor and a fifth temperature sensor.

[0024] As an improvement to the above technical solution, the following is also included:

[0025] a first flow meter, which is arranged on the first gas supply pipeline;

[0026] The second flow meter is arranged on the second air supply pipeline.

[0027] As an improvement of the above technical solution, the second air supply module further includes a filter, and the filter is arranged on the second air intake pipeline.

[0028] As an improvement of the above technical solution, the first exhaust module also includes a third exhaust pipeline, the first end of the third exhaust pipeline is used to connect to the air outlet of the compressor under test, and the second end is used to connect to the atmosphere; the second exhaust module also includes a fourth exhaust pipeline, the first end of the fourth exhaust pipeline is used to connect to the air outlet of the turbine under test, and the second end is used to connect to the atmosphere; control valves are provided on the third exhaust pipe and the fourth exhaust pipe.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The fuel cell air compressor test system of the present invention is provided with a first air supply module to supply air to the tested compressor, and a second air supply module to supply air to the tested turbine. The first air supply module includes a first air intake line and a first nitrogen intake line, each of which is provided with a control valve. The second air supply module includes a second air intake line and a second nitrogen intake line, each of which is also provided with a control valve. Thus, by varying the air supply volume of the first air intake line and the first nitrogen intake line, the intake gas composition of the tested compressor can be varied, and by varying the air supply volume of the second air intake line and the second nitrogen intake line, the intake gas composition of the tested turbine can be varied. The air supply compressor is used to provide high-pressure airflow to the tested turbine, simulating the intake state of the turbine in a fuel cell air compressor. Furthermore, the first air supply module further includes a first temperature control device, and the second air supply module further includes a second temperature control device, so as to adjust the intake temperature of the tested compressor and the tested turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a fuel cell air compressor testing system provided by an embodiment of the present utility model.

[0032] In the picture:

[0033] 1. First air supply module; 11. First air intake pipeline; 111. First control valve; 12. First nitrogen intake pipeline; 121. Second control valve; 13. First air supply pipeline; 131. First one-way valve;

[0034] 14. First temperature control device; 141. First heat exchanger; 142. First temperature control system;

[0035] 15. First container; 16. First atomizer; 17. Vacuum pump;

[0036] 18. First sensor group;

[0037] 2. First exhaust module; 21. First exhaust pipeline; 211. Seventh control valve;

[0038] 22. Third temperature control device; 221. Third heat exchanger; 222. Third temperature control system;

[0039] 23. Second sensor group;

[0040] 24. The third sensor group;

[0041] 25. Third exhaust pipe; 251. Fifth control valve;

[0042] 26. First muffler;

[0043] 3. Second air supply module; 31. Second air intake pipeline; 311. Third control valve; 32. Second nitrogen intake pipeline; 321. Fourth control valve; 322. Third check valve; 33. Air supply compressor;

[0044] 34. Second temperature control device; 341. Second heat exchanger; 342. Second temperature control system;

[0045] 35. Second air supply pipeline; 351. Second one-way valve;

[0046] 36. Second container; 37. Second atomizer;

[0047] 38. Fourth sensor group;

[0048] 39. Filter;

[0049] 4. Second exhaust module; 41. Second exhaust pipeline; 411. Eighth control valve;

[0050] 42. Fifth sensor group; 43. Fourth exhaust pipe; 431. Sixth control valve;

[0051] 44. Second muffler;

[0052] 5. Cooling system;

[0053] 6. First flow meter;

[0054] 7. Second flow meter;

[0055] 100. Compressor under test; 200. Turbine under test. DETAILED DESCRIPTION

[0056] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0057] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0058] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0059] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0060] like Figure 1 As shown, this embodiment provides a fuel cell air compressor test system. Those skilled in the art will understand that fuel cell air compressors include various types, including electric air compressors that only have a compressor but no turbine, and air compressors that have both a compressor and a turbine. The fuel cell air compressor test system in this embodiment can be used for testing air compressors that only have a compressor but no turbine, and can also be used for testing air compressors that have both a compressor and a turbine.

[0061] The fuel cell air compressor test system in this embodiment includes a first air supply module 1, a first exhaust module 2, a second air supply module 3, a second exhaust module 4, and a cooling system 5. The first air supply module 1 includes a first air intake line 11, a first nitrogen intake line 12, a first air supply line 13, and a first temperature control device 14. The first ends of the first air intake line 11 and the first nitrogen intake line 12 are both connected to the first end of the first air supply line 13. The first air intake line 11 and the first nitrogen intake line 12 are both provided with control valves. The control valve provided on the first air intake line 11 is a first control valve 111, and the control valve provided on the first nitrogen intake line 12 is a second control valve 121. The second end of the first air supply line 13 is used to communicate with the air inlet of the compressor 100 under test. The first temperature control device 14 is provided on the first air supply line 13 and is used to adjust the temperature of the gas flowing through the first temperature control device 14. The first exhaust module 2 includes a first exhaust pipeline 21 connected to the outlet of the compressor 100 under test. The first end of the first exhaust pipeline 21 is connected to the outlet of the compressor 100 under test, and the second end is connected to the atmosphere. The second air supply module 3 includes a second air intake pipeline 31, a second nitrogen intake pipeline 32, an air supply compressor 33, a second temperature control device 34, and a second air supply pipeline 35. The second air intake pipeline 31 and the second nitrogen intake pipeline 32 are both connected to the second air supply pipeline 35. The second air intake pipeline 31 and the second nitrogen intake pipeline 32 are both equipped with control valves. The control valve provided on the second air intake pipeline 31 is a third control valve 311, and the control valve provided on the second nitrogen intake pipeline 32 is a fourth control valve 321. The air supply compressor 33 and the second temperature control device 34 are both provided on the second air intake pipeline 31. The second end of the second air supply pipeline 35 is connected to the air intake of the turbine 200 under test. The second exhaust module 4 includes a second exhaust line 41 connected to the exhaust port of the turbine under test 200. The first end of the second exhaust line 41 is connected to the exhaust port of the turbine under test 200, and the second end is connected to the atmosphere. The cooling system 5 supplies cooling medium to the cooling channels of the compressor under test 100 and / or the supply compressor 33 to ensure normal operation of the compressor under test 100 and / or the supply compressor 33. In this embodiment, the first control valve 111, the second control valve 121, the third control valve 311, and the fourth control valve 321 are all flow control valves. When the fuel cell air compressor test system tests an electric air compressor that is only equipped with a compressor but not a turbine, the cooling system 5 supplies cooling medium to the compressor 100 under test. When the fuel cell air compressor test system tests an air compressor that is equipped with both a compressor and a turbine, the cooling system 5 can also supply cooling medium to the compressor 100 under test and the air supply compressor 33 at the same time. In addition, when testing an air compressor that is equipped with both a compressor and a turbine, under certain working conditions, the cooling system 5 can also supply cooling medium only to the air supply compressor 33.

[0062] The fuel cell air compressor test system provided in this embodiment is provided with a first air supply module 1 to supply air to the tested compressor 100, and a second air supply module 3 to supply air to the tested turbine 200. The first air supply module 1 includes a first air intake line 11 and a first nitrogen intake line 12, both of which are provided with control valves. The second air supply module 3 includes a second air intake line 31 and a second nitrogen intake line 32, both of which are also provided with control valves. Therefore, by changing the air supply volume of the first air intake line 11 and the first nitrogen line, the intake gas composition of the tested compressor 100 can be changed, and by changing the air supply volume of the second air intake line 31 and the second nitrogen line, the intake gas composition of the tested turbine 200 can be changed. The air supply compressor 33 is used to provide high-pressure airflow to the turbine under test 200, simulating the intake conditions of the turbine in a fuel cell air compressor. Furthermore, the first air supply module 1 also includes a first temperature control device 14, and the second air supply module 3 also includes a second temperature control device 34 to regulate the intake temperature of the compressor 100 and the turbine under test 200. The fuel cell air compressor test system in this embodiment can be used to test electric air compressors equipped with only a compressor and no turbine, as well as air compressors equipped with both a compressor and a turbine.

[0063] Furthermore, if Figure 1 As shown, the first air supply module 1 further includes a first container 15. The first ends of the first air intake line 11 and the first nitrogen intake line 12 are both connected to the first container 15, and the first end of the first air supply line 13 is also connected to the first container 15. By providing the first container 15, the air supplied by the first air intake line 11 and the nitrogen supplied by the first nitrogen intake line 12 are mixed within the first container 15 before entering the compressor 100 under test, thereby ensuring a uniform gas composition entering the compressor 100 under test. The second air supply module 3 further includes a second container 36. The first ends of the second air intake line 31 and the second nitrogen intake line 32 are both connected to the second container 36, and the first end of the second air supply line 35 is also connected to the second container 36. By providing the second container 36 , the air supplied by the second air intake line 31 and the nitrogen supplied by the second nitrogen intake line 32 are mixed in the second container 36 before entering the compressor 100 under test, thereby making the gas composition entering the compressor 100 under test uniform.

[0064] Furthermore, if Figure 1As shown, the first air supply module 1 also includes a first atomizer 16, which is disposed on the first container 15 and is used to humidify the gas in the first container 15. By arranging the first atomizer 16 on the first container 15, the humidity of the gas entering the tested compressor 100 can be adjusted as needed. The second air supply module 3 also includes a second atomizer 37, which is disposed on the second container 36 and is used to humidify the gas in the second container 36. By arranging the second atomizer 37 on the second container 36, the humidity of the gas entering the tested turbine 200 can be adjusted as needed. It will be understood by those skilled in the art that both the first atomizer 16 and the second atomizer 37 are connected to a water supply pipeline.

[0065] Furthermore, if Figure 1 As shown, the first gas supply module 1 further includes a vacuum pump 17, the gas inlet of which is connected to the first container 15. By providing the vacuum pump 17, the first container 15 can be evacuated before the compressor 100 is tested to prevent the gas remaining in the first container 15 from affecting the test.

[0066] Furthermore, if Figure 1 As shown, the first exhaust module 2 further includes a third temperature control device 22 , which is disposed on the first exhaust pipeline 21 and is used to adjust the temperature of the gas flowing through the third temperature control device 22 , thereby adjusting the outlet temperature of the compressor 100 under test.

[0067] Alternatively, as Figure 1 As shown, the first temperature control device 14 includes a first heat exchanger 141 and a first temperature control system 142. The first heat exchanger 141 is disposed on the first air supply pipeline 13. The first temperature control system 142 is used to supply heat exchange medium to the first heat exchanger 141 to adjust the temperature of the gas flowing through the first heat exchanger 141. The second temperature control device 34 includes a second heat exchanger 341 and a second temperature control system 342. The second heat exchanger 341 is disposed on the second air intake pipeline 31. The second temperature control system 342 is used to supply heat exchange medium to the second heat exchanger 341 to adjust the temperature of the gas flowing through the second heat exchanger 341. The third temperature control device 22 includes a third heat exchanger 221 and a third temperature control system 222. The third heat exchanger 221 is disposed on the first exhaust pipeline 21. The third temperature control system 222 is used to supply heat exchange medium to the third heat exchanger 221 to adjust the temperature of the gas flowing through the third heat exchanger 221. In addition, the second temperature control device 34 is disposed between the air supply compressor 33 and the second container 36 to prevent the high-temperature air compressed by the air supply compressor 33 from damaging the second atomizer 37 equipment.

[0068] Alternatively, as Figure 1As shown, the structure of the cooling system 5 is the same as that of the first temperature control system 142 and the second temperature control system 342 .

[0069] Alternatively, as Figure 1 As shown, the first air supply module 1 also includes a first sensor group 18, which is disposed in the connecting pipeline between the first heat exchanger 141 and the tested compressor 100. The first sensor group 18 includes a first temperature sensor, a first pressure sensor, a first humidity sensor, and a first oxygen concentration sensor. The first sensor group 18 monitors and feeds back the state of the mixed gas flowing through the pipeline. The first temperature sensor monitors the gas temperature in the pipeline, the first pressure sensor monitors the gas pressure in the pipeline, the first humidity sensor monitors the gas humidity in the pipeline, and the first oxygen concentration sensor monitors the gas oxygen content in the pipeline.

[0070] The first exhaust module 2 also includes a second sensor group 23 and a third sensor group 24. The second sensor group 23 is disposed on the connecting pipeline between the tested compressor 100 and the third temperature control device 22. The second sensor group 23 includes a second pressure sensor and a second temperature sensor. The second pressure sensor is used to monitor the gas pressure at the outlet of the tested compressor 100, and the second temperature sensor is used to monitor the gas temperature at the outlet of the tested compressor 100. The third sensor group 24 is disposed at the outlet of the third temperature control device 22. The third sensor group 24 includes a third pressure sensor and a third temperature sensor. The third pressure sensor is used to monitor the gas pressure at the outlet of the first heat exchanger 141, and the third temperature sensor is used to monitor the gas temperature at the outlet of the first heat exchanger 141.

[0071] Second air supply module 3 also includes a fourth sensor group 38, which is disposed on second air supply pipeline 35 and includes a fourth temperature sensor, a fourth pressure sensor, a second humidity sensor, and a second oxygen concentration sensor. Fourth sensor group 38 monitors the state of the mixed gas fed back into turbine 200 under test. The fourth temperature sensor monitors the gas temperature in the pipeline, the fourth pressure sensor monitors the gas pressure in the pipeline, the second humidity sensor monitors the gas humidity in the pipeline, and the second oxygen concentration sensor monitors the gas oxygen content in the pipeline.

[0072] The second exhaust module 4 also includes a fifth sensor group 42, which is arranged on the second exhaust pipe 41. The fifth sensor group 42 includes a fifth pressure sensor and a fifth temperature sensor. The fifth pressure sensor is used to monitor the gas pressure at the outlet of the turbine 200 under test, and the fifth temperature sensor is used to monitor the gas temperature at the outlet of the turbine 200 under test.

[0073] Alternatively, as Figure 1As shown, the fuel cell air compressor test system provided in this embodiment also includes a first flow meter 6 and a second flow meter 7. The first flow meter 6 is provided on the first gas supply pipeline 13 and is used to monitor the gas flow in the first gas supply pipeline 13. The second flow meter 7 is provided on the second gas supply pipeline 35 and is used to monitor the gas flow in the second gas supply pipeline.

[0074] Optionally, the second air supply module 3 further includes a filter 39 , which is disposed on the second air intake pipeline 31 and is used to filter impurities in the gas entering the air supply compressor 33 .

[0075] Alternatively, as Figure 1 As shown, the first exhaust module 2 of the fuel cell air compressor test system provided in this embodiment also includes a first muffler 26, and the second exhaust module 4 also includes a second muffler 44. The first muffler 26 is arranged on the first exhaust pipeline 21, and the second muffler 44 is arranged on the second exhaust pipeline 41.

[0076] Alternatively, as Figure 1 As shown, a seventh control valve 211 is provided on the first exhaust pipeline 21, and an eighth control valve 411 is provided on the second exhaust pipeline 41. The seventh control valve 211 and the eighth control valve 411 are both flow regulating valves for regulating the flow of the first exhaust pipeline 21 and the second exhaust pipeline 41.

[0077] Alternatively, as Figure 1 As shown, the first exhaust module 2 also includes a third exhaust pipeline 25. The first end of the third exhaust pipeline 25 is used to connect to the outlet of the tested compressor 100, and the second end is used to communicate with the atmosphere. The third exhaust pipeline 25 is provided with a control valve, which is a fifth control valve 251. The fifth control valve 251 is a safety valve. When surge of the air supply compressor 33 is observed (for a certain period of time, the speed of the tested compressor 100 and the opening value of the seventh control valve 211 remain unchanged, the flow value measured by the first flowmeter 6 and the pressure value measured by the second pressure sensor in the second sensor group 23 fluctuate periodically, and when the fluctuation value of the amplitude exceeds the set value, it is determined to be surge), the fifth control valve 251 will automatically open to release the pipeline pressure.

[0078] The second exhaust module 4 also includes a fourth exhaust pipeline 43. The first end of the fourth exhaust pipeline 43 is connected to the outlet of the turbine under test 200, and the second end is connected to the atmosphere. The fourth exhaust pipe is provided with a control valve, which is a sixth control valve 431. The sixth control valve 431 is a safety valve. When surge of the air supply compressor 33 is observed (for a certain period of time, the speed of the air supply compressor 33 and the opening value of the eighth control valve 411 remain unchanged, and the flow value measured by the second flowmeter 7 and the pressure value measured by the fourth pressure sensor in the fourth sensor group 38 fluctuate periodically, and the fluctuation value of the amplitude exceeds the set value, it is determined to be surge), the sixth control valve 431 will automatically open to release the pipeline pressure.

[0079] Alternatively, as Figure 1 As shown, the first gas supply pipeline 13 is further provided with a first one-way valve 131 , the second gas supply pipeline 35 is further provided with a second one-way valve 351 , and the second nitrogen inlet pipeline 32 is further provided with a third one-way valve 322 .

[0080] The working principle of this utility model:

[0081] The first container 15 is used to store a mixture of multiple gases. The first control valve 111 controls the amount of air entering the first container 15. The second control valve 121 controls the amount of nitrogen entering the first container 15. The first atomizer 16 controls the humidity of the gas in the first container 15. The first temperature control device 14 controls the temperature of the gas mixture entering the tested compressor 100. The first sensor group 18 monitors the temperature, pressure, humidity, and oxygen concentration of the gas entering the tested compressor 100. The first check valve 131 prevents gas from the first container 15 from flowing only from the first container 15 to the tested compressor 100. The first flowmeter 6 monitors the flow rate of gas entering the tested compressor 100. The tested compressor 100 is the object of measurement. The second sensor group 23 monitors the gas pressure and temperature at the outlet of the tested compressor 100. If surge is detected in the tested compressor 100, the fifth control valve 251 automatically opens to release pipeline pressure. The third temperature control device 22 controls the temperature of the mixed gas at the outlet of the tested compressor 100. The third sensor group 24 monitors the gas pressure and temperature at the outlet of the third temperature control device 22. The seventh control valve 211 controls the circuit flow rate and back pressure. The first muffler 26 is used to reduce noise. The cooling system 5 connects the cooling flow path of the tested compressor 100 and the supply compressor 33 through a cooling pipeline.

[0082] Filter 39 filters impurities from the gas entering the air supply compressor 33. The air supply compressor 33 controls the gas pressure upstream of the third control valve 311, thereby controlling the pressure of the gas entering the second container 36. The second temperature control device 34 controls the temperature of the gas at the outlet of the air supply compressor 33, ensuring controllable temperature of the gas entering the turbine 200 under test. The third control valve 311 controls the volume of gas entering the second container 36 from the outlet of the air supply compressor 33, effectively controlling the amount of compressed air entering the second container 36. Nitrogen enters the second container 36 through the fourth control valve 321 and the third check valve 322. The fourth control valve 321 controls the amount of nitrogen entering the second container 36. Water enters the second container 36 through the atomizer and mixes with the other two gases, controlling the humidity of the gas in the second container 36. The second container 36 is used to store a mixture of multiple gases, and gas composition can be controlled by adjusting the volume of each gas. If surge is detected in the air supply compressor 33, the sixth control valve 431 will automatically open to release pipeline pressure. The outlet gas pressure of the third control valve 311 is high. This, in conjunction with the second check valve 351 and the third check valve 322, ensures that the gas in the second container 36 flows only toward the turbine under test 200. The second flowmeter 7 monitors the gas flow in the second gas supply line 35. The turbine under test 200 serves as the test object. The fourth sensor group 38 monitors the state of the mixed gas entering the turbine under test 200. The mixed gas flows from the second check valve 351 and the second flowmeter 7 to the turbine under test 200, simulating the intake state of the turbine under test 200. The fifth sensor group 42 monitors the gas state at the outlet of the turbine under test 200. The eighth control valve 411 controls the loop flow and backpressure. The second muffler 44 reduces noise generated by the operation of the turbine under test 200. Testing of the turbine under test 200 can be achieved by varying the speed of the air supply compressor 33, the openings of the third control valve 311, the fourth control valve 321, and the eighth control valve 411.

[0083] The fuel cell air compressor test system in this embodiment can control the air compressor intake gas composition and simulate different intake air temperatures, humidity, pressures, etc. caused by factors such as altitude. It can also detect and protect against compressor surge.

[0084] 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 replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A fuel cell air compressor test system, characterized in that: include: A first air supply module (1), comprising a first air intake pipeline (11), a first nitrogen intake pipeline (12), a first air supply pipeline (13) and a first temperature control device (14); first ends of the first air intake pipeline (11) and the first nitrogen intake pipeline (12) are both in communication with a first end of the first air supply pipeline (13); control valves are provided on the first air intake pipeline (11) and the first nitrogen intake pipeline (12); a second end of the first air supply pipeline (13) is used to communicate with an air inlet of a compressor (100) to be tested; and the first temperature control device (14) is provided on the first air supply pipeline (13); A first exhaust module (2) comprising a first exhaust pipeline (21) connected to the air outlet of the tested compressor (100); a second air supply module (3), comprising a second air intake pipeline (31), a second nitrogen intake pipeline (32), an air supply compressor (33), a second temperature control device (34) and a second air supply pipeline (35); the second air intake pipeline (31) and the second nitrogen intake pipeline (32) are both in communication with the second air supply pipeline (35); the second air intake pipeline (31) and the second nitrogen intake pipeline (32) are both provided with control valves; the air supply compressor (33) and the second temperature control device (34) are both provided on the second air intake pipeline (31); and a second end of the second air supply pipeline (35) is used to communicate with an air inlet of a turbine (200) under test; A second exhaust module (4) comprising a second exhaust pipeline (41) connected to an exhaust port of the turbine (200) under test; A cooling system (5) supplies cooling medium to the cooling flow passages of the tested compressor (100) and / or the air supply compressor (33).

2. The fuel cell air compressor test system according to claim 1, characterized in that: The first air supply module (1) further includes a first container (15), the first ends of the first air intake pipeline (11) and the first nitrogen intake pipeline (12) are both connected to the first container (15), and the first end of the first air supply pipeline (13) is connected to the first container (15); The second air supply module (3) further includes a second container (36), the first ends of the second air intake pipeline (31) and the second nitrogen intake pipeline (32) are both connected to the second container (36), and the first end of the second air supply pipeline (35) is connected to the second container (36).

3. The fuel cell air compressor test system according to claim 2, characterized in that: The first gas supply module (1) further comprises a first atomizer (16), which is arranged on the first container (15) and is used to humidify the gas in the first container (15); The second gas supply module (3) further comprises a second atomizer (37), which is arranged on the second container (36) and is used to humidify the gas in the second container (36).

4. The fuel cell air compressor test system according to claim 2, characterized in that: The first air supply module (1) further comprises a vacuum pump (17), and an air inlet of the vacuum pump (17) is in communication with the first container (15).

5. The fuel cell air compressor test system according to claim 1, characterized in that: The first exhaust module (2) further comprises a third temperature control device (22), and the third temperature control device (22) is arranged on the first exhaust pipeline (21).

6. The fuel cell air compressor test system according to claim 5, characterized in that: The first temperature control device (14) comprises a first heat exchanger (141) and a first temperature control system (142), wherein the first heat exchanger (141) is arranged on the first gas supply pipeline (13), and the first temperature control system (142) is used to supply heat exchange medium to the first heat exchanger (141); The second temperature control device (34) comprises a second heat exchanger (341) and a second temperature control system (342), wherein the second heat exchanger (341) is arranged on the second air intake pipeline (31), and the second temperature control system (342) is used to supply heat exchange medium to the second heat exchanger (341); The third temperature control device (22) comprises a third heat exchanger (221) and a third temperature control system (222); the third heat exchanger (221) is arranged on the first exhaust pipe (21); and the third temperature control system (222) is used to supply heat exchange medium to the third heat exchanger (221).

7. The fuel cell air compressor test system according to claim 6, characterized in that: The first air supply module (1) further comprises a first sensor group (18), the first sensor group (18) being arranged on a connecting pipe between the first heat exchanger (141) and the compressor (100) being tested, the first sensor group (18) comprising a first temperature sensor, a first pressure sensor, a first humidity sensor and a first oxygen concentration sensor; The first exhaust module (2) further comprises a second sensor group (23) and a third sensor group (24), wherein the second sensor group (23) is arranged on a connecting pipeline between the compressor (100) to be tested and the third temperature control device (22), and the second sensor group (23) comprises a second pressure sensor and a second temperature sensor, and the third sensor group (24) is arranged at an air outlet of the third temperature control device (22), and the third sensor group (24) comprises a third pressure sensor and a third temperature sensor; The second air supply module (3) further includes a fourth sensor group (38), the fourth sensor group (38) being arranged on the second air supply pipeline (35), the fourth sensor group (38) including a fourth temperature sensor, a fourth pressure sensor, a second humidity sensor, and a second oxygen concentration sensor; The second exhaust module (4) further comprises a fifth sensor group (42), which is arranged on the second exhaust pipeline (41), and comprises a fifth pressure sensor and a fifth temperature sensor.

8. The fuel cell air compressor test system according to claim 1, characterized in that: Also includes: a first flow meter (6) disposed on the first gas supply pipeline (13); A second flow meter (7) is provided on the second air supply pipeline (35).

9. The fuel cell air compressor test system according to claim 1, characterized in that: The second air supply module (3) further includes a filter (39), and the filter (39) is arranged on the second air intake pipeline (31).

10. The fuel cell air compressor test system according to any one of claims 1 to 9, characterized in that: The first exhaust module (2) further comprises a third exhaust pipeline (25), wherein a first end of the third exhaust pipeline (25) is used for connecting to the air outlet of the tested compressor (100), and a second end is used for connecting to the atmosphere; the second exhaust module (4) further comprises a fourth exhaust pipeline (43), wherein a first end of the fourth exhaust pipeline (43) is used for connecting to the air outlet of the tested turbine (200), and a second end is used for connecting to the atmosphere; and control valves are provided on both the third exhaust pipe and the fourth exhaust pipe.

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