摘要
效率、空蚀和稳定性是水轮机水力性能的三大主要指标,补气对水轮机消除振动和稳定运行、改善空蚀性能和提高效率都有直接影响。本文通过不同水轮机采用不同的补气方式及使用效果进行了详细的分析,供类似型式水轮机的电厂借鉴和参考。
Efficiency,cavitation and stability are key indicators about the performance of hydraulic turbine. The air supply mode has direct influences on eliminating vibration,improving stability,improving cavitation situation and improving efficiency of the turbine. The effects of different air supply mode on different turbines are analyzed and compared in detail in this paper. The results can be the reference for the power plants which have similar turbines.
引文
[1]王玲花.水轮发电机组振动及分析.GIP.郑州:黄河水利出版社,2011.
[2]付之跃,许巍巍.水轮机不同补气方式的试验研究.东方电机,2005,(2):50-56.
[3]廖韶丹.水轮机主轴中心孔补气.东方电气评论,2005,19(4):214-215.
[4]上官永红,汤永明.湖南润海水电站水轮机补气装置设计.机电技术,2006,29(2):29-31.
[5]胡跃云.水轮机补气改善机组稳定运行实例.水电站机电技术,1999,(3):25-26.
[6]李宇红.红石水电站轴流定桨式水轮机补气减震的几个问题.水利水电技术,1995,(3):19-22.