Energy Saving Design And Operation Optimization Selection Of Circulating Water Pump For One Million Kw Nuclear Power Unit

Million kilowatt nuclear auxiliary power unit power consumption rate is in commonly 6%,of which circulating cooling water pump power consumption accounts for about 1%,than that with the energy conservation and emissions reduction work in the field of social production and life of matting and,as an emerging power generation enterprises,in addition to keep the nuclear clean,stable traditional advantages,such as million kilowatt nuclear power plants from the design should be combined with production process at the beginning of choosing appropriate parameters and models of circulating water system,such as double speed motor,pipeline throttling adjustment,dynamic adjusting etc.The production process,according to the regional differences,combined with the performance of the circulating water system,targeted to follow something system design and transformation,improve the circulating pump running economy and safety,and on this basis of circulating water pump operation mode optimization,which can effectively maintain the best vacuum condenser,effectively reduces the auxiliary power,energy conservation and emissions reduction.This article will combine the first phase of our country active mega kilowatt nuclear power unit optimization of circulating water pumps running instances and data,analyze the operation mode of circulating water pump,and put forward based on the optimum vacuum in the process of practice,the adjustment cycle of pump speed or run the Numbers,without reducing power station under the condition of safety,looking for the right time to switch.This article also combined with the circulating water system of the nuclear power plant phase two project design practice,comparison and analysis of various kinds of circulating water pump operation design scheme,using a variety of ways to reduce head,3,4 units circulating pump selection,reduce local elevation,optimize the cycle pump head,reach the purpose of saving auxiliary power,for nuclear power unit cycle pump energy saving effect and operation optimization advice.