炉水循环泵热工保护误动作分析与改进  

Analysis and improvement for thermal protection misoperation of boiler water circulating pump

作　　者：吴广伟 WU Guangwei(Liaoning Dongke Electric Power Co.,Ltd.,Shenyang 110006,China)

机构地区：[1]辽宁东科电力有限公司,沈阳110006

出　　处：《黑龙江电力》2022年第1期83-85,共3页Heilongjiang Electric Power

摘　　要：对某电厂670 MW超临界机组锅炉在调试期间,发生炉水循环泵热工保护动作过程进行分析。针对控制逻辑设计不合理引发设备跳闸进而导致锅炉总燃料跳闸问题,提出采用储水箱水位与过热度的参数组合方式来联锁启动或停止炉水循环泵的逻辑优化策略,可实现设备全过程自动控制。During the commissioning of a 670 MW supercritical unit boiler,the thermal protection operation process of boiler water circulating pump was analyzed.Aiming at the problem of equipment trip caused by unreasonable control logic design,which leads to boiler total fuel trip,a logic optimization strategy of interlocking starting or stopping boiler water circulating pump by using the parameter combination of water level and superheat of water storage tank is proposed,which can realize the automatic control of the whole process of equipment.

关 键 词：炉水循环泵 热工保护 控制逻辑 

分 类 号：TK172[动力工程及工程热物理—热能工程]