Product Introduction
The hydrogen circulation pump is a key component in the hydrogen fuel cell vehicle. It can re-transport the hydrogen that has not fully reacted in the stack to the stack inlet, thereby improving the utilization rate of hydrogen. The hydrogen circulating pump test bench is a special testing equipment for the performance and durability test of the hydrogen circulating pump.
The test bench can test parameters such as pressure, flow rate, temperature, humidity, speed, voltage, current, etc., and can carry out the test items that must be verified for the development of hydrogen circulating pump according to the set procedures and test conditions. It is designed to test whether the performance indicators of the circulating pump meet the needs of use when running under various working conditions.
The test bench can be equipped with high and low temperature environmental boxes and silent boxes according to user needs, which can simulate the actual vehicle operating conditions of the hydrogen circulating pump in an all-round way. It is an essential test equipment in the development and production of hydrogen circulating pumps.
Test Item
Routine Test | Performance Test | Low Voltage Electrical Test | Reliability Test |
Low temperature working test | Full power working voltage range test | DC supply voltage test |
Reliability test |
High temperature working test | Power limited working voltage range test | Low voltage power supply overvoltage test | |
Storage temperature test | Maximum working speed test | MCU low voltage power supply ramp up/down test | |
Humidity test | Maximum output pressure test | Instantaneous power interruption test | |
Temperature cycle test | Maximum gas flow test | Start (surge) test | |
Ice breaking start test | System efficiency test | Low pressure reverse test | |
Noise test | Rated power test | Open circuit test | |
Tightness test | Peak power and duration test | Locked-rotor protection test |
Test Curve
Features
1) The use of segmented adjustment and measurement technology realizes a wide range of pressure adjustment and flow measurement, which can meet the testing needs of most hydrogen circulating pumps on the market;
2) Applicable to a variety of test media (including air, nitrogen, helium, hydrogen), providing users with more flexible and diverse test methods;
3) The main pressure control system adopts electric proportional valve control, with high control precision, fast response and stable performance;
4) The control software has complete functions, convenient and flexible parameter setting, which can meet the different test needs of users, and has good adaptability;
5) It has complete safety interlock, fault protection function, abnormal alarm function, and real-time monitoring of temperature, pressure, flow and other information through industrial computer;
6) Using computer to automatically control the test process and process test data, it can automatically draw test curves such as pressure, flow rate, speed, voltage, current, etc., automatically judge test results, save test data and print test reports, and can query test result data through various search conditions .
Technical Parameter
Project Name | Range | Precision |
Pump inlet pressure | 0-10 bar | 0.1％FS |
Pump outlet pressure | 0-10 bar | 0.1％FS |
Differential pressure adjustment before and after the pump |
4-40Kpa |
/ |
Small flow | 0-30Nm3/h | ±1％FS |
Large flow | 0-150Nm3/h | ±1％FS |
Noise test | 30-130dB(A) | IEC61672-level 1 |
Voltage measurement | 75VDC | ±0.2％FS |
Current measurement | 100ADC | ±0.1％FS |
High and low temperature chamber | -50-150℃ | ≤1℃ |