水轮机空蚀安全裕量系数K值的取法  

The Method of Selecting the Water Turbine Cavitation Safety Margin Coefficient Value K

作　　者：刘中成 

机构地区：[1]哈尔滨电机厂(昆明)有限责任公司,650100

出　　处：《云南水力发电》2013年第4期134-137,共4页Yunnan Water Power

摘　　要：以空蚀安全系数K值的取法为核心,首先明确了吸出高度值的计算基准、水轮机不同空化系数的概念及水轮机空化系数对水轮机性能的影响,最后通过实例说明对不同机型及不同比转速机组的空蚀安全系数K值的取法。With the method of selecting the cavitation safety coefficient value K as the base, the paper first ly defines the basis for calculation of the suction height value, the concepts of different cavitation coeffi cients of a hydraulic turbine and the influence of the cavitation coefficient of the hydraulic turbine on per formance of the hydraulic turbine and finally illuminates the method of selecting the cavitaion safety coeffi cient of the hydroelectric generation set for different types of hydraulic turbines and different specific speeds by giving living examples.

关 键 词：气蚀 吸出高度值 临界空化系数 初生空化系数 空蚀安全系数 

分 类 号：TK730.2[交通运输工程—轮机工程]