During the operation of the steam generator in the pressurized water reactor nuclear power plant,due to corrosion products,condenser leakage or steam generator heat transfer tube leakage,the SG secondary side water contains impurities and is highly concentrated,this increases the risk of corrosion of the heat transfer tubes of the steam generator,so the steam generator is equipped with a continuous blowdown system,in order to reduce the concentration effect of various impurities in the steam generator and control the radioactive level caused by the leakage of primary side water to the secondary circuit water.Based on the sampling tests in different parts,this paper studies and discusses the sewage efficiency of the cold end and hot end sewage pipelines of the steam generator sewage system of a third-generation pressurized water reactor nuclear power plant from the perspective of chemical control,and the benefits of the sewage system for the recovery effect of alkalizing agent,and put forward the operation proposal accordingly.
维普
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