变汽温法测300MW机组高中压缸间轴封漏汽量的应用实践  

Application of the Steam Temperature Variation Method for Measuring Gland-Steam Leakage Between H.P. and I.P. Cylinders of 300 MW Sets

作　　者：章娟[1] 包劲松[2] 

机构地区：[1]杭州电力教育培训中心,浙江杭州310015 [2]浙江省电力试验研究所,浙江杭州310014

出　　处：《发电设备》2004年第2期79-81,91,共4页Power Equipment

摘　　要：介绍了变汽温法测量国产引进型300MW汽轮机高中压缸间轴封漏汽量的应用实践,分析了高中压缸间轴封漏汽量对热耗率和中压缸效率计算值的影响,提出可以使用此法确定同型新投产机组和改造机组热力性能考核试验中高中压缸间的轴封流量,以及监测机组日常运行时高中压缸前轴封运行状况和中压缸通流效率。The paper introduces of the application of the steam temperature variation method in the measurement of gland steam leakage between H.P. and I.P. cylinders of a domestic manufactured 300 MW steam turbine, analyses the effects of the steam leakage on the calculation of the specific heat consumption and the I.P. cylinder's efficiency and suggest that this method be used on turbines of the same type in acceptance tests of new or retrofitted sets, as well as for monitoring the front gland's leakage effect on th...

关 键 词：汽轮机 变汽温法 轴封漏汽 中压缸效率 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]