600MW汽轮机高压调门晃动原因分析和对策  

Analysis of Governor Valve Hunting of 600MW Units and Relevant Treatment

作　　者：刁保圣 

机构地区：[1]扬州第二发电有限责任公司,江苏扬州225000

出　　处：《汽轮机技术》2004年第1期64-66,共3页Turbine Technology

摘　　要：主要从负荷指令的生成、热工的电气回路接线、电液转换器的EH油质等3方面分析了扬二厂两台600MW西屋汽轮机高压调门晃动的原因,指出运行方式切换时出现的调门大幅晃动是控制系统存在的缺陷造成的;同时指出要从根本上消除调门晃动,必须加强电液转换器EH油质的运行维护和做好线性位移差动变送器LVDT等电气回路的接线防松动措施。This article analyzes reasons causing two 600MW Westinghouse turbine governor valves hunting from three aspects, the creation of load instruction, electric circuit wiring of I&C equipment and EH oil quality of elechydraulic converter. It points out that heavy hunting appeared during the switch-over of operation modes is caused by the system defect, and to solve the problem radically is to strengthen daily maintenance of EH oil, and make necessary preparation to avoid cable-loosing of eletric equipment as linear variable differential transformers.

关 键 词：高压调门 晃动 分析 处理 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]