JIANGLi-yun,XUQiu-hong,WURuo-xi,et al.Integrated Water Hammer Protection and Monitoring Validation for an Ultra?high Lift Pumping Water Supply System[J].China Water & Wastewater,2025,41(14):94-100.
Integrated Water Hammer Protection and Monitoring Validation for an Ultra?high Lift Pumping Water Supply System
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第14期
Page:
94-100
Column:
Date of publication:
2025-07-17
- Keywords:
- ultra?high lift pumping station; water hammer monitoring system; water hammer relief valve; air tank; integrated water hammer protection; monitoring validation
- Abstract:
- Wanda water hammer calculation software was used to analyze the characteristics of water hammer during power outage and pump shutdown in the water supply system of the ultra-high lift pumping station with a head of 375 m（3.75 MPa） in the design phase. The impact of different water hammer protection measures on the positive and negative pressure water hammer of the water delivery system was compared. To accurately evaluate and verify the effectiveness of simulated water hammer protection measures in practical engineering applications, a water hammer monitoring system was used to measure the power outage and pump shutdown conditions on site. The results show that the integrated protection scheme of water hammer using waterproof hammer air valve, multi-functional water pump control valve, water hammer relief valve, and air tank has an error of less than 10% between the maximum and minimum pressure measured on site and the simulation results. It effectively reduces the pressure increase of water hammer during power outage and pump shutdown, eliminates negative pressure in the pipeline, and ensures the safe operation of the pipeline; under the same design volume, the closer the installation position of the air tank is to the pipeline segment that generates negative pressure, the better the negative pressure relief effect; the water hammer monitoring system provides a scientific basis for accurately evaluating the effectiveness of water hammer protection measures and model verification.
Last Update:
2025-07-17