600MW超临界汽轮机循环水泵双速节能改造的技术分析

Technical analysis of double-speed energy-saving reform for 600 MW supercritical steam turbine's circulating pump

针对某电厂600 MW超临界2号发电机组2B循环水泵浪费资源问题进行了分析。在保证机组安全运行的基础上,采用更换电机绕组的方案对循环水泵进行了双速改造。改造后,循环水泵节电率达45%左右,降低厂用电率达约0.17%,节能效果显著,各项数据显示满足运行设计要求。

This paper analyzes the resource waste in 2B circulating pump of No.2 600 MW supercritical unit in a power plant,and,on the basis of safe operation,reforms the pump by changing motor winding.The reformed circulating pump has a remarkable energy-saving effect：electricity saving rate reaches to around 45% and power consumption rate is reduced by about 0.17%.Besides,various data meet the requirements of operation design.