贯流式水轮机安装高程确定问题探讨  

Discussion on Determination of Tubular Turbine Installation Elevation

作　　者：李泽同 Li Zetong(Xinjiang Water Conservancy&Hydroelectric Power Investigation,Design and Research Institute,Urumqi 830000,China)

机构地区：[1]新疆水利水电勘测设计研究院有限责任公司,乌鲁木齐830000

出　　处：《黑龙江水利科技》2023年第7期51-54,72,共5页Heilongjiang Hydraulic Science and Technology

摘　　要：基于中国《水电站机电设计手册》所提出的贯流式水轮机安装高程确定的基本方法指出,确定水轮机安装高程的关键在于吸出高程和设计尾水位的确定,并以8×30MW的某水电站灯泡贯流式水轮发电机组为例,采用常规方法和分析计算法进行了该电站水轮机吸出高程及安装高程的计算;对包括空化基准面、空化系数、空化安全系数、设计尾水位等在内的影响贯流式水轮机吸出高程及安装高程的因素及取值情况进行了分析论述,可作为贯流式水轮机在我国低水头水力资源开发中推广应用的借鉴参考。Based on the basic method for determining the installation elevation of tubular turbine proposed in the Manual of Mechanical and Electrical Design of Hydropower Stations,it is pointed out that the key to determining the installation elevation of turbine is to determine the suction elevation and the design tail water level.Taking an 8×30MW bulb tubular turbine generator set of a hydropower station as an example,the extraction and installation elevation of the turbine is calculated with conventional method and analytical calculation method.The factors affecting suction and installation elevation of tubular turbine,including cavitation base level,cavitation coefficient,cavitation safety factor and design tail water level,are analyzed and discussed,which can be used as reference in the development of low head hydraulic resources of tubular turbine in China.

关 键 词：贯流式水轮机 安装高程 吸出高程 尾水位 

分 类 号：TV547.3[水利工程—水利水电工程]