600MW汽轮机调节阀单阀切换顺序阀运行的安全性及经济性  

SAFETY AND ECONOMIC BEHAVIOR OF SWITCHING THE GOVERNING VALVE FROM SINGLE VALVE CONTROL TO SEQUENCIAL VALVE CONTROL IN OPERATION OF 600 MW STEAM TURBINE

作　　者：赵永林 秦占峰 范培华 史新刚 

机构地区：[1]聊城发电厂,山东聊城252033

出　　处：《热力发电》2007年第5期52-55,共4页Thermal Power Generation

摘　　要：聊城电厂2×600 MW机组一直存在调节阀无法由单阀切换为顺序阀运行的问题,对机组的效率影响较大。为此,提出了优化调节阀开启顺序和调整阀门重叠度的改进方案。调节阀控制方式改为对角开启顺序阀运行后,保障了机组安全稳定运行,经济效益显著。The problem of governing valves for two 600 MW steam turbines continuously existing in operation is that the governing valve can＇t be switched from single valve control to sequencial valve control, having comparatively large influence upon the efficiency of units. For this, an improvement scheme for optimizing the open sequence of the governing valves and for adjusting the overlap degree of said valves has been put forward. After changing the control mode of said governing valves to sequencial valve control which can be diagonally opened,safe and stable operation of the units can be ensured, obtaining remarkable economic benefits.

关 键 词：600 MW机组 调节阀 控制 单阀运行 顺序阀运行 

分 类 号：TK263.72[动力工程及工程热物理—动力机械及工程]