主泵轴封应急注入水系统技术现状与应用分析
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摘要
介绍了核电厂主泵流体静压轴封组件和流体动压轴封组件的结构特点及工作原理,基于不同类型应急轴封注入水系统的设计方案和运行特性,分析了轴封应急注入水系统设计方案对不同类型轴封组件的适应性。结果表明,内置热交换器应急注入水系统设计方案适用于不同类型的流体动压轴封组件和流体静压轴封组件,外置高压冷却器应急注入水系统设计方案适用于流体动压轴封组件和设置有能动式停车密封的流体静压轴封组件。
The structure characteristics and working principle of the combination of the hydrostatic shaft seal and hydrodynamic shaft seal of the reactor coolant pump for nuclear power plants were introduced. Based on the design scheme and operating characteristics of different types of emergency injection water system for the shaft seal,the adaptability of the emergency injection water system for different types of shaft seals was analyzed. The results show that the emergency injection water system with built-in heat-exchanger in the RCP pump adapts to different type of hydrodynamic shaft seal and hydrostatic shaft seal,and the emergency injection water system with the heat-exchanger mounted outside of RCP pump adapts to the hydrodynamic shaft seal and the hydrostatic shaft seal provided with active stand still seal.
The structure characteristics and working principle of the combination of the hydrostatic shaft seal and hydrodynamic shaft seal of the reactor coolant pump for nuclear power plants were introduced. Based on the design scheme and operating characteristics of different types of emergency injection water system for the shaft seal,the adaptability of the emergency injection water system for different types of shaft seals was analyzed. The results show that the emergency injection water system with built-in heat-exchanger in the RCP pump adapts to different type of hydrodynamic shaft seal and hydrostatic shaft seal,and the emergency injection water system with the heat-exchanger mounted outside of RCP pump adapts to the hydrodynamic shaft seal and the hydrostatic shaft seal provided with active stand still seal.
引文
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[2]王玉明,黄伟峰,李永健.核电站一回路用机械密封[J].摩擦学学报,2011,3(4):408-416.
[3]陈捷.巴基斯坦恰希玛核电站主泵轴密封[J].水泵技术,2003(1):40-44.
[4]丛国辉,王元,马家炯,等.百万千瓦级核电厂主泵轴封技术现状及发展趋势[J].流体机械,2013,41(12):36-42.
[5]黄泽沛,张君凯,王和顺,等.流体静压型核电主泵轴密封的研制[J].流体机械,2012,40(8):30-35.
[6]康玉茹,孟祥铠,彭旭东,等.核主泵用流体静压型机械密封耦合模型与性能分析[J].流体机械,2011,39(11):22-27.
[7]黄峰,安峰,杨全超,等.某核电厂主泵轴密封分析[J].电力通用机械,2014(5):66-69.
[8]熊光明,段远刚,邓小云,等.非对称预紧载荷下核反应承压容器密封性能分析方法研究[J].压力容器,2017,35(12):27-31.
[9]张季,赵国忠,邓张皓,等.基于精细螺栓模型的爆破阀热固耦合密封性能分析[J].压力容器,2018,35(2):13-23.
[10]薛晓攀,王超,赵月扬,等.停车密封在大亚湾核电站反应堆冷却剂泵的应用可行性探讨[J].液压气动与密封,2013(10):48-50.
[11]廖祥令.方家山核电厂主泵轴密封水系统运行分析[J].核动力工程,2015,36(S1):78-81.
[12]周志文,翁云峰,廖祥令,等.方家山核电机组主泵调试[J].核动力工程,2015,36(3):106-109.