核电站余热排出泵轴承体的受热分析  

Thermal Analysis on Bearing Body of Residual Heat Removal Pump in Nuclear Power Plant

作　　者：滕国荣 李彦军[3,2] 严建华 黄道见[3] 

机构地区：[1]江苏省特种化工泵工程技术研究中心,江苏靖江214537 [2]江苏双达泵阀集团有限公司,江苏靖江214537 [3]江苏大学,江苏镇江212013

出　　处：《流体机械》2011年第12期33-37,共5页Fluid Machinery

基　　金：国家“十五”重大技术装备研制项目(ZZ01-11-02-03);江苏省高校自然科学研究面上项目(10KJB570001)

摘　　要：余热排出泵是核电站中核岛安全停堆的重要保障,而轴承体又是余热排出泵的安全稳定运行的关键部件。应用传热学理论,分析了轴承体的受热状态,结果表明余热排出泵内高温流体的热量通过泵轴传递到轴承体,再加上轴承的高速旋转摩擦产生的热量,使轴承体的温度过高,影响轴承体的安全稳定运行,须采用循环水进行冷却。根据传热学和能量守恒原理,分析了循环冷却水量与出口水温的关系,为循环水量的确定提供了参考。Heat removal pump is important for nuclear power plant during its suspending period.And bearing body is the key components for the pumps to operate safely and stably.The heating status of bearing body were analyzed based on heat transfer theory.The results show that the heat quantity transferred from pump body to bearing body by the axis and the heat quantity generated from bearing high-speed rotating friction are both absorbed by bearing body,and the the temperature of bearing body is too high to run safely.So the recycled water should be use for cooling.The relations were analyzed between recycled water flow and its outlet temperature.

关 键 词：余热排出泵 轴承体 传热分析 冷却水量计算 

分 类 号：S277.9[农业科学—农业水土工程] TH311[农业科学—农业工程]