核主泵推力轴承结构优化及试验研究  

Structural Optimization and Experimental Study on Thrust Bearing of Nuclear Main Pump

作　　者：李盼 刘小军 LI Pan;LIU Xiao-jun(Hunan Urban Construction College,Xiangtan 411101,Hunan,China;Hunan SUND Technology Corporation,Xiangtan 411101,Hunan,China)

机构地区：[1]湖南城建职业技术学院,湖南湘潭411101 [2]湖南崇德科技股份有限公司,湖南湘潭411101

出　　处：《机械研究与应用》2025年第1期26-28,33,共4页Mechanical Research & Application

基　　金：2023年湖南省教育厅科学研究项目:核主泵推力轴承结构优化关键技术研究(编号:23C0526)。

摘　　要：文章针对原核主泵推力轴承存在的问题进行结构优化,并搭建了推力轴承试验台分别对原轴承与优化后的轴承进行了性能试验。试验表明:在额定载荷工况下,优化前后的轴承推力瓦温度均与转速成正比关系;且在工况相同的情况下,优化后的轴承推力瓦温度明显低于优化前的温度,这说明优化后的轴承散热能力更强。优化后,推力轴承的功耗减少了3.5 kW,换热能力提高了29.4%,推力瓦温度降低了3.2%,导瓦温度降低了8.9%,轴承承载性能得到了明显提高。Aiming at the problems existing in the thrust bearing of the prokaryotic main pump,the structure optimization is carried out,and the thrust bearing test bench is built to test the performance of the original bearing and the optimized bearing respectively:under the rated load condition,the temperature of the bearing thrust pad before and after optimization is proportional to the speed;moreover,under the same working conditions,the temperature of the optimized bearing thrust pad is significantly lower than that before optimization,indicating that the optimized bearing has stronger heat dissipation capacity.After optimization,the power consumption of the thrust bearing is reduced by 3.5 kW,the heat transfer capacity is increased by 29.4%,the temperature of the thrust pad is reduced by 3.2%,the temperature of the guide pad is reduced by 8.9%,and the bearing capacity is significantly improved.

关 键 词：核主泵推力轴承 结构优化 试验 

分 类 号：TH133.31[机械工程—机械制造及自动化] TK124[动力工程及工程热物理—工程热物理]