惠蓄A厂上导及推力轴承换热器优化配置分析与应用

Distribution Optimization of Upper Guide and Thrust Bearings Heat Exchanger in the Plant A of Huizhou Pumped-Storage Power Station

分析惠蓄抽水蓄能A厂电动发电机上导及推力轴承换热器及其外循环冷却系统存在的问题和缺陷。通过构建换热器优化配置的总体框架和数学模型,提出了优化配置的理论方法和外循环冷却系统的改进措施。结合换热器传热过程分析,换热量数值差异和瓦温控制的数据对比,对换热量、换热效率与换热器类型的关系进行了分析讨论,得出了板式换热器适合于机组上导及推力轴承稳定运行的结论。

The problems and deficiencies of the upper guide and thrust bearings heat exchanger and cooling system in the Plant A of Huizhou Pumped-Storage Power Station were analyzed. By building a mathematical model for the heat exchanger distribution optimization, the relationship between transferred heat, beat transfer efficiency and heat exchanger type was studied. The results show that the plate heat exchanger is more suitable for the stable operation of upper guide and thrust bearings.