核主泵紧急注入水供应系统结构的改进及试验

Journal of Drainage and Irrigation Machinery Engineering(2018)

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Abstract
为了满足核主泵停机后的紧急注水需求,设计了1种核主泵用非能动紧急注入水供应装置,并对核主泵紧急注入水供应系统结构进行了改进.为验证该结构的可靠性,采用全流量试验台进行轴封注入水关闭试验,分别测试了在轴封注入水断失的情况下,有/无紧急注入水供应+主泵停机(工况A/B),和有紧急注入水供应+主泵不停机时(工况C)3种不同工况时轴封组件的温度.试验结果表明,安装射流泵后,轴封注入水断失时在主泵不停机情况下,应急注入水及时开启,使得轴封组件温度维持在70℃左右而未上升,有效地降低了密封组件温度.文中设计的射流泵装置提高了紧急注入水供应的可靠性,满足设计要求.
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