真空严密性与凝汽器漏入空气流量的定量关系  

QUANTITATIVE RELATIONSHIP BETWEEN THE VACUUM TIGHTNESS AND THE LEAKING AIR FLOW RATE INTO CONDENSER

作　　者：马汀山[1] 蒋安[2] 郄彦明[3] 李素芳[3] 居文平[1] 于新颖[1] 

机构地区：[1]西安热工研究院有限公司,陕西西安710032 [2]西北电力设计院,陕西西安710075 [3]华能上安电厂,河北石家庄310000

出　　处：《热力发电》2009年第6期65-67,共3页Thermal Power Generation

摘　　要：通过试验研究得出国产300MW机组真空严密性与凝汽器及真空系统漏入空气流量的定性、定量关系。根据不同容量机组低压缸排汽容积流量的换算关系,给出了真空严密性的定量评价基准。试验研究结果可为汽轮发电机组日常运行中漏入空气对凝汽器性能的影响程度提供判断依据。Through test study, the qualitative and quantitative relationship between the vacuum tightness and the leaking air flow rate into condenser of 300 MW units made in home has been obtained. Based on the conversion relation of volume flow of exhaut steam from the low - pressure casing of units with different output capacities,the quantitative evaluation criterion of vacuum tightness has been given. From results of the test study,a judgement basis can be provided for evaluating the influence degree of in -leaking air upon the performance of condenser in daily operation of turbo- generator set.

关 键 词：300 MW汽轮机组 凝汽器 漏入空气流量 真空严密性 真空系统 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]