The water pump testing system is a specialized equipment used for performance testing of water pumps, commonly used to assess key parameters such as flow, head, power, and efficiency. The system simulates various working environments and conditions to provide comprehensive performance data, ensuring the reliability and stability of the pump under different operating conditions.
Testing Platform: An integrated platform with a sturdy structural design that supports the testing of water pumps of various specifications.
Power Control System: Provides adjustable voltage and current output to the pump, typically offering DC 6-48V voltage and an adjustable current of 0-30A, to control the operation of the pump.
Measurement System: High-precision sensors measure the voltage, current, and power of the motor under test in real-time, ensuring data accuracy.
Flow and Pressure Monitoring: High-precision pressure sensors and electromagnetic flow meters are used to monitor the flow, head, and cavitation margin of the pump in real-time.
Temperature Control System: Temperature controllers, temperature sensors, and cooling/heating units are used to monitor and control the temperature of the test medium in real-time.
Liquid Level Control System: Ball valves and level gauges monitor and adjust the liquid level of the test medium, ensuring stable system operation.
Cavitation Tank and Vacuum Control: A vacuum pump, pressure relief valve, and pressure sensors are used to monitor and control the vacuum level or top pressure in the cavitation tank.
Water Tank and Filtration System: Equipped with a water storage tank, filter, and return pump system, ensuring the cleanliness of the test medium during the testing process while recovering any spilled material.
Automated Testing: Developed using LabVIEW software, the pump performance testing software automates the testing process, collects data automatically, performs performance curve fitting, and determines pass/fail status for multiple operating conditions.
Data Management: Customizable test reports are generated, and all test data is saved in a historical database, supporting easy access, retrieval, modification, and printing at any time.
Reliability and Stability Testing: The system can simulate different working conditions to conduct reliability and stability tests for the pump.
This system is widely used in water pump manufacturing, design, and quality inspection, helping ensure good performance and long-term stable operation of water pumps under various conditions.
The test bench uses an integrated platform: it provides a DC 6-48V, adjustable output current from 0 to 30A to control the water pump operation, while simultaneously performing high-precision real-time measurements of the voltage, current, and power of the motor under test. The system uses a stainless steel cavitation tank to provide the test medium while ensuring a stable flow; ball valves and liquid level gauges are used for medium level monitoring and control; the temperature of the test medium is monitored and controlled using a temperature controller, temperature sensors, and cooling/heating units; the cavitation tank vacuum or tank top pressure is monitored and controlled using a vacuum pump, pressure relief valve, and pressure sensors; high-precision pressure sensors and electromagnetic flow meters are used for real-time measurements of the pump flow rate, head, and cavitation margin. Additionally, the test bench is designed with a water tank, filter, and return pump to ensure the cleanliness of the test platform and effectively recover any spilled medium during the loading and unloading process.
The water pump test bench is equipped with a high-performance industrial computer, and the pump performance testing software is developed based on LabVIEW. The software automates the control of the testing process, automatically collects and processes test data, fits performance curves, and determines the qualification of multiple operating conditions. It also generates customizable test reports, while saving test data to a historical database for easy access, retrieval, modification, and printing.
Test Subject | Electronic Water Pump |
Test Medium | Antifreeze -40°C ± 2°C — 125°C ± 2°C |
Test Positions | 2 positions, 1 position; DN15-DN25, 2 positions: DN32-DN40 |
Flow | 0 ~ 20m³/h, Accuracy: 0.5%R |
Head | 0 ~ 20M, Accuracy: 0.2FS |
Inlet Pressure | -0.1 ~ 0.1MPa, Accuracy: 0.5%FS |
Outlet Pressure | 0 ~ 0.5MPa, Accuracy: 0.5%FS |
Cavitation Margin: The margin before cavitation occurs.
Head at Rated Flow: The head produced by the pump when operating at its rated flow rate.
Cavitation Margin at Rated Flow: The cavitation margin when the pump is operating at its rated flow rate.
Actual Performance Test Points: The actual measured performance points of the pump during testing.
Head Deviation: The difference in head values from the expected values under test conditions.
Pump Efficiency: The ratio of the useful hydraulic power to the input power.
Flow Deviation: The difference between the expected and actual flow rates during testing.
Power at Rated Flow: The power required by the pump to operate at its rated flow rate.
Efficiency at Rated Flow: The efficiency of the pump when operating at its rated flow rate.
Cavitation Margin Deviation: The difference between the expected and actual cavitation margin under testing conditions.
Pump Efficiency Deviation: The difference between the expected and actual efficiency of the pump.
Head: The energy imparted to the fluid by the pump, usually expressed in meters or feet of fluid.
These test items help in assessing the performance and efficiency of the pump under different operating conditions, ensuring it meets the required specifications.
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