600MW双背压凝汽器水位计测量准确性分析与探讨  

Analysis and Discussion on Measurement Accuracy of 600 MW Double Pressure Condenser Water Level Gauge

作　　者：赵志勇[1] 李宏卫[1] 刘勇海 

机构地区：[1]河北国华定洲发电有限责任公司,河北定州073000

出　　处：《华北电力技术》2013年第11期53-55,共3页North China Electric Power

摘　　要：针对国华定洲电厂1号机组凝汽器水位计经常出现的测量不准确和液位波动,以及该机组一次因凝汽器液位低保护动作跳机事件,着重从水位计安装位置对凝汽器水位测量准确性的影响方面进行了分析和探讨,并提出了一种水位计安装位置的改造方案,对同类型机组保障凝汽器水位测量的准确性和机组安全稳定运行具有一定的借鉴作用。For unit 1 in Guohua Dingzhou Power Plant,the measurement of condenser water level gauge was often inaccurate,the gauge had liquid level fluctuation, one unit tripping accident occurred due to low level protection action of condenser. Based on the above considerations, the effect of installation position of gauge on measurement accuracy was analyzed and discussed. An installation position of water gauge was proposed as retrofit plan aiming to provide reference for similar units to achieve measurement accuracy and unit safe operation.

关 键 词：凝汽器 水位计 疏水扩容器 回热淋水盘 毛细管 

分 类 号：TK316[动力工程及工程热物理—热能工程] TM621.3[电气工程—电力系统及自动化]