核电站应急给水系统对蒸汽喷射泵的性能要求分析

Performance Analysis of a Steam-driven Injector for Emergency Feedwater System of Nuclear Power Plant

针对采用蒸汽喷射泵的核电站应急给水系统,提出了简化的应急给水需求分析方法。根据AP1000核电厂的主要参数,对停堆过程中一回路冷却要求进行分析,得到机组维持热备用温度和冷却过程对蒸汽喷射泵的性能要求。结果表明:在停堆的不同阶段要求蒸汽喷射泵能适应变工况运行,因此设计中可以采用不同的蒸汽喷射泵配置形式,通过调节汽水参数以满足性能要求。

A simplified analysis method was proposed for the demand of emergency feedwater by nuclear power plant using steam-driven injector.According to the parameters of AP1000 nulcear power plant,the cooling water demand in primary loop was analyzed during shutdown period,so as to obtain the requirement on performance of the steam-driven injector in the process of hot and cold standby.Results indicate that,the steam-driven injector is required to operate at various cases during shutdown period,so different configurations can be adopted in the design of steam-driven injectors,thus meeting the performance requirement of steam-driven injector through adjustment on relevant steam and water parameters.