| 63 | 0 | 33 |
| 下载次数 | 被引频次 | 阅读次数 |
在水轮发电机组运行过程中，推力轴承由于承力及摩擦等因素会产生大量余热，润滑油散热效果差会导致烧瓦现象，从而带来巨大经济损失，纳米颗粒不仅能改善润滑油润滑特性还能增强润滑油换热过程。为此，通过数值模拟仿真，研究了不同浓度(0.1wt%、0.3wt%、0.5wt%)的纳米氧化铜颗粒强化推力轴承润滑油的散热效果。结果表明，通过添加纳米氧化铜可强化润滑油的散热效率，且纳米氧化铜浓度为0.5wt%时散热效果最佳。
Abstract：In the operation of hydroelectric generating unit, thrust bearings generate a considerable amount of residual heat due to load-bearing, friction, and other factors. Poor heat dissipation performance of lubricating oil can give rise to the tile burning phenomenon, thus causing massive economic losses. Nanoparticles can not only improve the lubrication characteristics of lubricating oil but also enhance the heat transfer process of lubricating oil. Accordingly, through numerical simulation, this study examined the heat dissipation enhancement effect of lubricating oil in thrust bearings when reinforced by nano-copper oxide particles with different concentrations(0.1wt%, 0.3wt%, 0.5wt%). The results demonstrate that the addition of nano-copper oxide can enhance the heat dissipation efficiency of lubricating oil, and the most favorable heat dissipation effect is achieved when the concentration of nano-copper oxide is 0.5wt%.
[1] 赵霖，闵占奎，刘秀良，等.某水电站推力轴承温度过高原因分析及处理[J].机械研究与应用，2022,35(3):132-133.(ZHAO L,MIN Z K,LIU X L,et al.Cause analysis and treatment of overheat of thrust bearing in a hydropower station[J].Mechanical research & application,2022,35(3):132-133.(in Chinese))
[2] 万玉倩，田子勤.三峡左岸电站VGS机组推力瓦温偏高及改善措施[J].人民长江，2009,40(2):26-28,106.(WAN Y Q,TIAN Z Q.Causes of high temperature of VGS unit’s thrust bearing in left bank power station and improvement measures[J].Yangtze River,2009,40(2):26-28,106.(in Chinese))
[3] 张奇.600MW大型水轮发电机组推力轴承瓦温和油温高原因分析及处理[J].华电技术，2015,37(10):54-57,78-79.(ZHANG Q.Reason analysis and treatment of high temperature of thrust bearing bush and oil for 600 MW large-scale hydroelectric generating unit[J].Huadian technology,2015,37(10):54-57,78-79.(in Chinese))
[4] 陈凌芝.藏木水电站发电机选型与结构设计[D].西安：西安理工大学，2015.(CHEN L Z.High altitude area zangmu hydro-generator design[D].Xi’an:Xi’an University of Technology,2015.(in Chinese))
[5] 黄龙，王雨娇.氧化铜纳米流体喷雾冷却传热性能实验研究[J].低温工程，2024(3):56-63.(HUANG L,WANG Y J.Experimental study on influence of spray cooling on heat transfer of copper oxide nano-fluid[J].Cryogenics,2024(3):56-63.(in Chinese))
[6] SHEIKHOLESLAMI M,REZAEIANJOUYBARI B,DARZI M.et al.Application of nano-refrigerant for boiling heat transfer enhancement employing an experimental study[J].International journal of heat & mass transfer,2019,141:974-980.
[7] 宋小云.球形氧化物颗粒的制备及其抗磨减磨性能[D].济南：济南大学，2014.(SONG X Y.Preparation of Spherical Oxide Particles and Their Anti-Wear Properties[D].Jinan:University of Jinan,2014.(in Chinese))
[8] 张杨.水轮发电机组推力轴承散热系统研究综述[J].水电站机电技术，2018,41(1):10-14,71.(ZHANG Y.Overview of research on heat dissipation system of thrust bearing of hydrogenerator unit[J].Mechanical & electrical technique of hydropower station,2018,41(1):10-14,71.(in Chinese))
[9] 国家能源局.水轮发电机运行规程：DL/T 751-2001[S].北京：中国电力出版社，2014.(National Energy Bureau of the People’s Republic of China.Specification of Operation for Hydro-generators:DL/T 751-2014[S].Beijing:China Electric Power Press,2014.(in Chinese))
基本信息:
DOI：10.20040/j.cnki.1000-7709.2026.20250179
中图分类号:TV734.21
引用信息:
[1]贾先政,王代春,王斌,等.水轮发电机推力轴承纳米润滑油散热强化机理研究[J].水电能源科学,2026,44(01):203-206+226.DOI:10.20040/j.cnki.1000-7709.2026.20250179.
基金信息:
三峡金沙江云川水电开发有限公司宁南白鹤滩电厂科研项目(Z532302018)
2025-01-31
2025
2025-03-11
2025
1
2025-12-24
2025-12-24
2025-12-24