核电厂辅助蒸汽分配系统疏排水优化设计

Drainage Optimization Design of Auxiliary Steam Distribution System in Nuclear Power Plants

辅助蒸汽分配系统作为核电厂的辅助系统,在核电厂启动、运行和停堆期间为有关用户提供满足品质要求的蒸汽。首先介绍了辅助蒸汽分配系统的疏排水配置及设备选型原则,其次阐述了某核电厂取消蒸汽转换系统,将主蒸汽直接供至辅助蒸汽分配系统管网的方式。但将辅助蒸汽管网的疏水变为主蒸汽疏水,会导致疏水存在放射性污染。因此需对辅助蒸汽疏水系统进行优化设计,以确保电厂的运行安全性。

As the auxiliary system of the Nuclear Power Plant,the auxiliary steam distribution system provides steam that meet the requirements for relevant users during the start-up,operation and shutdown of Nuclear Power Plant.Firstly,the drainage configuration and equipment selection principles of auxiliary steam distribution system are introduced.Secondly,the method of canceling the steam conversion system of a nuclear power plant and directly supplying the main steam to the auxiliary steam distribution system pipe network is described.However,changing the hydrophobic of the auxiliary steam network to the primary steam trap can lead to radioactive contamination of the hydrophobic.Therefore,the auxiliary steam drainage system needs to be optimized to ensure the operational safety of the power plant.