Integrated hydrogen fuel cell air system part test bench

Abstract

The utility model relates to the field of hydrogen fuel cell test equipment, in particular to an integrated hydrogen fuel cell air system part test bench. The test system comprises a test system and a cooling system for cooling the test system, the test system has a multi-stage compression type air compressor test mode, an expansion type air compressor test mode, an intercooler test mode and an air flow meter test mode, so that different forms of parts can be tested, the occupied space of the test rack is effectively reduced, and the test work cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen fuel cell testing equipment, in particular to an integrated hydrogen fuel cell air system component testing bench. Background Art

[0002] Hydrogen fuel cells supply hydrogen and oxygen to the anode (negative electrode) and cathode (positive electrode) respectively through the reverse reaction process of water electrolysis. Hydrogen diffuses outward through the anode and reacts with the electrolyte, releasing electrons to reach the cathode through an external load, thereby generating electricity. In this process, hydrogen fuel cells only produce water and heat, and do not pollute the environment. This clean energy conversion method using hydrogen as energy is gradually becoming an important branch in the field of new energy due to its high efficiency and environmental protection.

[0003] The fuel cell air system includes air compressors, intercoolers, flow meters and other components. Commonly used air compressors are divided into multi-stage compression air compressors and expansion air compressors. With the rapid development of fuel cell technology, the demand for testing and evaluation of hydrogen fuel cell air system components is also increasing sharply. Most of the existing fuel cell air system component test benches are split-type, with different test benches for different types of components. They have low integration, occupy a large space and are costly, resulting in a certain waste of resources. Utility Model Content

[0004] In view of the problems existing in the background technology, an integrated hydrogen fuel cell air system component test bench is proposed, which has multiple test modes and can test components of different forms, which not only effectively reduces the space occupied by the test bench, but also helps to reduce the cost of testing work.

[0005] The utility model provides an integrated hydrogen fuel cell air system component test bench, including a test system and a cooling system for cooling the test system; the test system has multiple test modes. When working, air passes through an air filter, an air flow meter 1, a test piece A / straight pipe, a pressure sensor P1 / temperature sensor T1, a test piece B / air compressor, a pressure sensor P2 / temperature sensor T2, a side piece C / intercooler, a pressure sensor P3 / temperature sensor T3 and a throttle valve 3 in sequence, and is finally discharged from a muffler tail pipe; another part of the air The air flows from the air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe; when the cooling system is working, the cooling water passes through the heat dissipation module, water filter, and water pump in sequence and is divided into two parts. One circuit passes through coolant flow meter 1, regulating valve 1, temperature sensor T8, and tested part B / air compressor to return to the main circuit radiator, and the other circuit passes through coolant flow meter 2, regulating valve 2, temperature sensor T6 / pressure sensor P6, tested part C / intercooler, temperature sensor T7 / pressure sensor P7 to return to the main circuit radiator.

[0006] Preferably, test mode one is: the air passes through the air filter, air flow meter one, straight pipe, pressure sensor P1 / temperature sensor T1, test piece B, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle one, throttle three, and is finally discharged from the muffler tail pipe; another part of the air goes from the air compressor to air flow meter two, merges with the main circuit, flows through throttle three, and is finally discharged from the muffler tail pipe.

[0007] Preferably, test mode two is: the air passes through the air filter, air flow meter one, straight pipe, pressure sensor P1 / temperature sensor T1, test piece B, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle two, pressure sensor P4 / temperature sensor T4, expansion air compressor, pressure sensor P5 / temperature sensor T5, throttle three, and is finally discharged from the muffler tail pipe; another part of the air flows from the expander air compressor to air flow meter two, merges with the main circuit, flows through throttle three, and is finally discharged from the muffler tail pipe.

[0008] Preferably, test mode three is: the air passes through the air filter, air flow meter 1, straight pipe, pressure sensor P1 / temperature sensor T1, air compressor, pressure sensor P2 / temperature sensor T2, side component C, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3 in sequence, and is finally discharged from the muffler tail pipe; another part of the air goes from the tested component B / air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

[0009] Preferably, test mode four is: the air passes through the air filter, air flow meter 1, test piece A, pressure sensor P1 / temperature sensor T1, air compressor, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3 in sequence, and is finally discharged from the muffler tail pipe; another part of the air goes from the air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

[0010] Preferably, the tested part A is the air flow meter 3 to be tested; the tested part B is the air compressor to be tested; and the tested part C is the intercooler to be tested.

[0011] Preferably, in the cooling system, a water supply port connected to an expansion kettle is provided between the water pump and the water filter, and an exhaust port connected to the expansion kettle is also provided on the radiator module.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects: the utility model is provided with a test system and a cooling system for cooling the test system. The test system adopts an integrated structure, and has a multi-stage compression air compressor test mode, an expansion air compressor test mode, an intercooler test mode and an air flow meter test mode, so that different types of parts can be tested, which not only effectively reduces the occupied space of the test bench, but also helps to reduce the cost of the test work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the working process of the integrated hydrogen fuel cell air system component test bench in the utility model. DETAILED DESCRIPTION

[0014] like Figure 1 As shown, the utility model proposes an integrated hydrogen fuel cell air system component test bench, which includes a test system and a cooling system for cooling the test system.

[0015] The test system has multiple test modes. When working, the air passes through the air filter, air flow meter 1, test piece A / straight pipe, pressure sensor P1 / temperature sensor T1, test piece B / air compressor, pressure sensor P2 temperature sensor T2, side piece C / intercooler, pressure sensor P3 / temperature sensor T3 and throttle valve 3 in sequence, and is finally discharged from the muffler tail pipe; another part of the air flows from the air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

[0016] When the cooling system is working, the cooling water is divided into two after passing through the heat dissipation module, water filter, and water pump in sequence. One circuit passes through coolant flow meter 1, regulating valve 1, temperature sensor T8, and tested part B / air compressor and returns to the main circuit radiator. The other circuit passes through coolant flow meter 2, regulating valve 2, temperature sensor T6 / pressure sensor P6, tested part C / intercooler, temperature sensor T7 / pressure sensor P7 and returns to the main circuit radiator.

[0017] It should be further explained that, in the cooling system, a water supply port connected to the expansion kettle is arranged between the water pump and the water filter, and an exhaust port connected to the expansion kettle is also arranged on the radiator module.

[0018] The following is an introduction to the functions of the equipment in the test system and cooling system.

[0019] Heat dissipation module: used for cooling the air compressor controller, air compressor, and intercooler coolant;

[0020] Water filter: filter impurities in the coolant;

[0021] Expansion kettle: used for water replenishment and exhaust of cooling system;

[0022] Water pump: power source of cooling system;

[0023] Coolant flow meter 1: measure the coolant flow of the air compressor controller and air compressor;

[0024] Coolant flow meter 2: measures the intercooler coolant flow;

[0025] Regulating valve 1: adjust the coolant flow of the air compressor controller and the air compressor;

[0026] Regulating valve 2: adjusts the coolant flow of the intercooler;

[0027] T1: Measure the air temperature at the air compressor inlet;

[0028] T2: Measure the air temperature at the air compressor outlet (intercooler inlet air temperature);

[0029] T3: intercooler outlet air temperature;

[0030] T4: air temperature at the turbine inlet of the air compressor;

[0031] T5: air temperature at the turbine outlet of the air compressor;

[0032] T6: intercooler coolant inlet temperature;

[0033] T7: intercooler coolant outlet temperature;

[0034] T8: air compressor controller, air compressor coolant inlet temperature;

[0035] P1: Measure the air pressure at the air compressor inlet;

[0036] P2: Measure the air pressure at the outlet of the air compressor (the air pressure at the inlet of the intercooler);

[0037] P3: intercooler outlet air pressure;

[0038] P4: air pressure at the turbine inlet of the air compressor;

[0039] P5: air pressure at the turbine outlet of the air compressor;

[0040] P6: intercooler coolant inlet pressure;

[0041] P7: Intercooler coolant outlet pressure.

[0042] The utility model can realize four test modes:

[0043] Multi-stage compression air compressor test: can measure the air compressor speed, flow, pressure ratio, power consumption and other performance;

[0044] Expansion air compressor test: can measure the air compressor speed, flow, pressure ratio, power consumption, turbine end energy recovery and other performance;

[0045] Intercooler test: can measure the intercooler heat exchange capacity, air flow resistance, coolant flow resistance and other performances;

[0046] Air flow meter test: can measure three flow rates of air flow meter.

[0047] Embodiment 1

[0048] Mode 1: The dashed box A is a straight pipe; the dashed box B is the multi-stage compression air compressor to be tested; the dashed box C is the intercooler built into the test bench; throttle valve 2 is closed; the fuel cell system stack, humidifier, pipeline, back pressure and other flows are simulated by adjusting throttle valves 1 and 3.

[0049] The working process of the integrated hydrogen fuel cell air system component test bench is as follows: the air passes through the air filter, air flow meter 1, straight pipe, pressure sensor P1 / temperature sensor T1, the multi-stage compression air compressor to be tested, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3, and is finally discharged from the muffler tail pipe; the other part of the air goes from the air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

[0050] Embodiment 2

[0051] Mode 2: The dashed box A is a straight pipe; the dashed box B is the expansion-compression air compressor to be tested; the dashed box C is the intercooler built into the test bench; throttle valve 1 is closed; the flow resistances of the fuel cell system stack, humidifier, pipeline, back pressure, etc. are simulated by adjusting throttle valves 2 and 3.

[0052] The working process of the integrated hydrogen fuel cell air system component test bench is as follows: the air passes through the air filter, air flow meter 1, straight pipe, pressure sensor P1 / temperature sensor T1, the expansion-compression air compressor to be tested, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve 2, pressure sensor P4 / temperature sensor T4, expansion air compressor, pressure sensor P5 / temperature sensor T5, throttle valve 3, and is finally discharged from the muffler tail pipe; the other part of the air goes from the expander air compressor to the air flow meter 2, merges with the main circuit, flows through the throttle valve 3, and is finally discharged from the muffler tail pipe.

[0053] Embodiment 3

[0054] Mode 3: A dotted frame is a straight pipe; B dotted frame is the system's built-in multi-stage compression air compressor; C dotted frame is the intercooler to be tested; throttle valve 2 is closed; the air compressor outlet air pressure and temperature (intercooler inlet air pressure and temperature to be tested) are adjusted by adjusting throttle valves 1 and 3 and the air compressor speed.

[0055] The working process of the integrated hydrogen fuel cell air system component test bench is as follows: the air passes through the air filter, air flow meter 1, straight pipe, pressure sensor P1 / temperature sensor T1, air compressor, pressure sensor P2 / temperature sensor T2, intercooler to be tested, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3, and is finally discharged from the muffler tail pipe; the other part of the air goes from the tested component B / air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

[0056] Embodiment 4

[0057] Mode 4: The dotted box A is the flow meter to be tested; the dotted box B is the system's built-in multi-stage compression air compressor; the dotted box C is the system's built-in intercooler; throttle valve 2 is closed; the target air flow (air flow meter 1 value) is adjusted by adjusting throttle valves 1 and 3 and the air compressor speed, and the air flow value to be tested is measured.

[0058] The working process of the integrated hydrogen fuel cell air system component test bench is as follows: the air passes through the air filter, air flow meter 1, the flow meter to be tested, pressure sensor P1 / temperature sensor T1, air compressor, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3, and is finally discharged from the muffler tail pipe; the other part of the air goes from the air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

[0059] It should be further explained that, in the above embodiments, a throttle element such as a pneumatic regulating valve can be used to replace the throttle valve, and a coolant three-way valve can be used to replace regulating valves 1 and 2, and each mode can be separated to build a separate test bench. All temperature sensors and pressure sensors can be replaced by integrated temperature and pressure sensors, such as temperature sensor T1 and pressure sensor P1, which can be replaced by integrated temperature and pressure sensors T1 / P1.

[0060] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An integrated hydrogen fuel cell air system component test bench, characterized in that: It includes a test system and a cooling system for cooling the test system; The test system has multiple test modes. When working, the air passes through the air filter, air flow meter 1, the tested part A / straight pipe, pressure sensor P1 / temperature sensor T1, the tested part B / air compressor, pressure sensor P2 temperature sensor T2, the tested part C / intercooler, pressure sensor P3 / temperature sensor T3 and throttle valve 3 in sequence, and finally discharged from the muffler tail pipe; another part of the air flows from the air compressor to the air flow meter 2, merges with the main circuit, flows through the throttle valve 3, and finally discharged from the muffler tail pipe; When the cooling system is working, the cooling water is divided into two after passing through the heat dissipation module, water filter, and water pump in sequence. One circuit passes through coolant flow meter 1, regulating valve 1, temperature sensor T8, and tested part B / air compressor and returns to the main circuit radiator. The other circuit passes through coolant flow meter 2, regulating valve 2, temperature sensor T6 / pressure sensor P6, tested part C / intercooler, temperature sensor T7 / pressure sensor P7 and returns to the main circuit radiator.

2. The integrated hydrogen fuel cell air system component test bench according to claim 1, characterized in that: Test mode one is: the air passes through the air filter, air flow meter one, straight pipe, pressure sensor P1 / temperature sensor T1, test piece B, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve one, throttle valve three, and is finally discharged from the muffler tail pipe; the other part of the air goes from the air compressor to air flow meter two, merges with the main circuit, flows through throttle valve three, and is finally discharged from the muffler tail pipe.

3. The integrated hydrogen fuel cell air system component test bench according to claim 1, characterized in that: Test mode two is: the air passes through the air filter, air flow meter one, straight pipe, pressure sensor P1 / temperature sensor T1, test piece B, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve two, pressure sensor P4 / temperature sensor T4, expansion air compressor, pressure sensor P5 / temperature sensor T5, throttle valve three, and is finally discharged from the muffler tail pipe; the other part of the air flows from the expander air compressor to air flow meter two, merges with the main circuit, flows through throttle valve three, and is finally discharged from the muffler tail pipe.

4. The integrated hydrogen fuel cell air system component test bench according to claim 1, characterized in that: Test mode three is: the air passes through the air filter, air flow meter 1, straight pipe, pressure sensor P1 / temperature sensor T1, air compressor, pressure sensor P2 / temperature sensor T2, side component C, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3, and is finally discharged from the muffler tail pipe; the other part of the air goes from the tested component B / air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

5. The integrated hydrogen fuel cell air system component test bench according to claim 1, characterized in that: Test mode four is: the air passes through the air filter, air flow meter 1, test piece A, pressure sensor P1 / temperature sensor T1, air compressor, pressure sensor P2 / temperature sensor T2, intercooler, pressure sensor P3 / temperature sensor T3, throttle valve 1, throttle valve 3, and is finally discharged from the muffler tail pipe; the other part of the air goes from the air compressor to air flow meter 2, merges with the main circuit, flows through throttle valve 3, and is finally discharged from the muffler tail pipe.

6. The integrated hydrogen fuel cell air system component test bench according to any one of claims 1 to 5, characterized in that: Component A is an air flow meter 3 to be tested; component B is an air compressor to be tested; component C is an intercooler to be tested.

7. The integrated hydrogen fuel cell air system component test bench according to claim 1, characterized in that: In the cooling system, a water supply port connected to the expansion kettle is arranged between the water pump and the water filter, and an exhaust port connected to the expansion kettle is also arranged on the radiator module.

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