LEIChun-yuan,YANGRui-hu,WANGWei,et al.Simulation of Water Hammer in Riverside Multi-well Water Source System and Its Protection[J].China Water & Wastewater,2022,38(13):51-58.
Simulation of Water Hammer in Riverside Multi-well Water Source System and Its Protection
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第13期
Page:
51-58
Column:
Date of publication:
2022-07-01
- Keywords:
- riverside multi-well water source system; water hammer; pump-stop accident; hydraulic transition process; box-type bidirectional pressure regulating tower; intake and exhaust valve; air pressure tank
- Abstract:
- Riverside multi-well water source system is characterized by multiple pumps, multiple water levels, multiple working conditions, multiple boundary conditions and complex pipeline system. According to basic differential equations and corresponding characteristic line equations for water hammer calculation, the water hammer was simulated in all wells under the condition of simultaneous shutdown of all the pumps at the same time, and two water hammer protection schemes were proposed, namely air pressure tank with intake and exhaust valve and box-type bidirectional pressure regulating tower with intake and exhaust valve. For the scheme of air pressure tank with intake and exhaust valve, the pressure of some pipe sections and some connecting pipes in front of the main pipe still exceeded the pressure value of the pipe, indicating that there were some security risks. For the scheme of box-type bidirectional pressure regulating tower with intake and exhaust valve, the maximum water hammer pressure of the main pipe and connecting pipe of each well was controlled below the pressure value of the pipeline, indicating that the safe operation of the pipe was guaranteed.
Last Update:
2022-07-01