1000MW水轮发电机喷淋式低损耗推力轴承技术
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摘要
推力轴承损耗由瓦面油膜的摩擦损耗和镜板等旋转件产生的搅拌损耗组成,降低油位可以大幅降低搅拌损耗。本文介绍了喷淋式低损耗推力轴承技术的研究成果,研究结果表明采用低浸泡和喷淋式非浸泡润滑系统为推力轴承供油,可以降低推力轴承搅拌损耗30%～90%,能够明显减少抽水蓄能机组高速推力轴承总损耗,提高机组的效率。
Thrust bearing loss is composed of friction loss of oil film on tile surface and stirring loss caused by rotating parts such as runner plate. Reducing oil level can significantly reduce stirring power loss. This paper introduces the research results of spray type low power loss thrust bearing technology,and the research results show that the use of low immersion and spray type non-immersion lubrication system to supply oil for thrust bearing can reduce the stirring loss of thrust bearing by 30% ～ 90%,significantly reduce the total power loss of high-speed thrust bearing of pumped storage unit,and improve the efficiency of the unit.
Thrust bearing loss is composed of friction loss of oil film on tile surface and stirring loss caused by rotating parts such as runner plate. Reducing oil level can significantly reduce stirring power loss. This paper introduces the research results of spray type low power loss thrust bearing technology,and the research results show that the use of low immersion and spray type non-immersion lubrication system to supply oil for thrust bearing can reduce the stirring loss of thrust bearing by 30% ～ 90%,significantly reduce the total power loss of high-speed thrust bearing of pumped storage unit,and improve the efficiency of the unit.
引文
[1]郑小康,刘平安,等.中国电气工程大典(第5卷)水力发电工程.北京:中国电力出版社,2009.ZHENGXiaokang,LIUPingan,etal.ChinaElectrical Engineering Code(Volume 5)Hydraulic Power Generation Project. Beijing:China Electric Power Press,2009.
[2]钟海权,等.一种液体动压推力轴承的供油方法[P].中华人民共和国知识产权局,2016,201410447739.7.ZHONG Haiquan,et al. A Method for Oil Supply of Hydro Dynamic Thrust Bearing[P]. Intellectual Property Office of the People’s Republic of China,2016,201410447739.7.
[3]郑小康,廖毅刚,杨仕福,钟海权,等.一种降低组合推力轴承搅油损耗的方法[P].中华人民共和国知识产权局,2016,201410447946.2.ZHENG Xiaokang,LIAO Yigang,YANG Shifu,ZHONG Haiquan,etal.AMethodforReducingStirringLossof Combined Thrust Bearing[P]. Intellectual Property Office of the People’s Republic of China,2016,201410447946.2.
[2]钟海权,等.一种液体动压推力轴承的供油方法[P].中华人民共和国知识产权局,2016,201410447739.7.ZHONG Haiquan,et al. A Method for Oil Supply of Hydro Dynamic Thrust Bearing[P]. Intellectual Property Office of the People’s Republic of China,2016,201410447739.7.
[3]郑小康,廖毅刚,杨仕福,钟海权,等.一种降低组合推力轴承搅油损耗的方法[P].中华人民共和国知识产权局,2016,201410447946.2.ZHENG Xiaokang,LIAO Yigang,YANG Shifu,ZHONG Haiquan,etal.AMethodforReducingStirringLossof Combined Thrust Bearing[P]. Intellectual Property Office of the People’s Republic of China,2016,201410447946.2.