The Small Water Supply Pipe Network Suddenly Stops The Pump Water Power Transition Computational Procedure Research

Along with our country urbanization advancement's quickening, takes of a water supply pipe network project urbanization infrastructures in the city lives of the people, the industrial production and the urban development function is day by day important, simultaneously also set a higher request to the water supply pipe network project, but urban service pipe net as a result of impingement reason but cartridge igniter's question is still common. Regarding the urban water supply pipe network, stopped the pump impingement's harm to be still huge, causes the pipeline to burst, the equipment (water pump, check valve) to damage, the massive water leakages and even cut off the water supply, the threaten seriously city's core life, was affecting people's normal life. Therefore, the research water supply pipe network stopped pump's impingement protective measure is suddenly the recent years city gives one of water supply research important topics, was imperative.To further discuss the water supply pipe network to stop the pump water power transition question suddenly, this article studies in the predecessor in the impingement research results foundation, the system elaborated on the pipe network pipeline the water power fluid state and the evolution namely were mad the fluid two phase currents the characteristics and the pipeline aerocyst pressure-rise mechanism, and to the impingement computation fundamental equation and the characteristic curve equation computation, must embark in the parsing process from the equipment performance actual situation establishes the boundary condition, then conducts the impingement protection research the discussion.This article elaborated in detail the impingement evaluation simulation number's basic principle and the concrete electricity calculate the method, through has carried on the system analysis to the pipe network pipeline cartridge igniter's water power condition, establishes under many boundary conditions the impingement mathematical model, and gave in the water supply pipe network pipeline the commonly used impingement to protect the boundary condition.This article unifies the example to stop the pump to the small water supply pipe network to carry on the VC++ language programming, the simulation run suddenly, stopped the pump impingement to conduct many kinds of operating mode research, regulated the water pump exit the cushion discharge valve two stage closing hour and the quick pass number of degree conducts the water supply pipe network impingement computation research, and proposed the protective measure finally. Has provided the reference value for the small water supply pipe network water power transition procedure research and profits from the significance.