国产300MW机组配汽机构阀切换特性试验研究  

Study on the Valve Transfer Characters of Valve Management in Homemade 300 MW Units

作　　者：田丰[1] 邓少翔[1] 徐之昌[1] 苏雷涛[1] 关南强[1] 刘务波 

机构地区：[1]广东省电力试验研究所,广东广州510600 [2]韶关发电厂,广东韶关512132

出　　处：《华中电力》2002年第6期1-4,共4页Central China Electric Power

摘　　要：现代化大型机组的调节系统由于采用了独立电液伺服阀和油动机驱动的调节阀,阀门管理具有更先进的功能。能够方便地实现顺序阀和单阀的配汽方式,并能实现二者的无扰切换。对某型国产300MW机组阀切换特性进行了试验研究,结果表明,在不同配汽方式下机组胀差、汽缸金属温度、高、中压缸排汽温度和振动特性等均具有明显差异。指出应综合考虑机组的效率和运行安全性,以适应不断发展的电力市场。Some advanced functions of valve management were adopted to realize two distribute steam mode between sequence valve and single valve conveniently, including valve transfer in no load undulation case, by use of governor driven by independent servo valve and servomotor in modern large turbine units governing system. Some experimental studies were carried out on the valve transfer characters in a homemade 300 MW unit. The result shows prominent discrepancy exists between two distribute steam mode,in expand difference cylinder metals temperature, HP-IP cylinder exit steam temperature and the characters of vibration.It point out that the efficiency and the safety of unit running characters must be considered together to adapt developing electric power market

关 键 词：300MW机组 切换特性 试验 汽轮机 调节阀 调节系统 

分 类 号：TK263.72[动力工程及工程热物理—动力机械及工程] TM3[电气工程—电机]