Research on Optimization of Two-stage Valve Shutoff Strategy of Multi-stage Booster Pump Stations Based on Water Hammer Protection
Multi-stage booster pump stations are commonly seen in mountain villages and towns to supply water.When an accident occurs in the upstream and downstream of a long distance multi-stage pressurized water supply pipeline,the accident stops the pump and easily leads to sudden changes in the flow rate and pressure fluctuations in the pipeline,resulting in water hammer.To address the problem of reducing water hammer damage to a long distance multi-stage pressurized water supply system,a two-stage valve closing optimization model was established by taking the two-stage valve closing program parameters(fast closing time,slow closing time,fast closing angle)of pumping stations as deci-sion variables and taking the maximum water hammer pressure as the optimization goal.The genetic algorithm was used to obtain the optimal two-stage valve closing strategy.Finally,the water supply pipe network of a mountainous village in East China was taken as an example for verification.The results show that the two-stage gate closing procedure scheme by the model for booster pumping stations has good applicability,and the two-stage valve closing program strategy can effectively reduce the influence of water hammer on the water supply system,thereby greatly improving the safety of such water supply pipe network.
万方数据
维普
