34doi:10.3969/j.issn.1009-3230.2023.01.008应用能源技术2023年第1期(总第301期)660MW机组新增停机工业水泵改造的节能分析谢军,彭越俊(贵州省习水鼎泰能源开发有限责任公司,贵州遵义564611)摘要:燃煤发电厂是工业耗水大户,发电水耗率是燃煤发电厂的重要经济指标之一,如何降低水耗、提高水资源利用率及机组运行经济性、降低经营成本,是燃煤发电企业发展的重要课题。文中以2×660MW超临界机组为例,通过新增一台停机工业水泵,对原工业水系统实施改造,一方面可以在机组双停时采用停机工业水泵运行,降低机组工业水耗水量;另一方面在机组运行时,可以作为工业水备用水源。改造后通过试验分析,结果表明:在机组双停时,可节水约350t/h。关键词:660MW机组;循环水;工业水;工业水泵;节能中图分类号:TM621Energy-savingAnalysisoftheTransformationandRenovationoftheIdleIndustrialWaterPumpof660MWUnit(GuizhouXishuiDingtaiEnergyDevelopmentCo.,Ltd.,Zunyi564611,China)Abstract:Coal-firedpowerplantsaremajorindustrialwaterconsumers,andthewaterconsumptionrateofpowergenerationisoneofthekeyeconomicindicatorsofcoal-firedpowerplants.Reducingwaterconsumption,improvingwaterresourceutilization,enhancingtheeconomicperformanceofpowerunits,andreducingoperatingcostsareimportantissuesforthedevelopmentofcoal-firedpowergenerationenterprises.Takingthe2x660MWsupercriticalunitasanexample,thispaperproposestotransformandrenovatetheoriginalindustrialwatersystembyaddinganidleindustrialwaterpump.Ontheonehand,theidleindustrialwaterpumpcanbeusedtoreducetheindustrialwaterconsumptionoftheunitduringthedualshutdownoftheunit.Ontheotherhand,itcanserveasabackupwatersourceforindustrialwaterduringunitoperation.Afterthetransformationandrenovation,thetestandanalysisresultsshowthatapproximately350t/hofwatercanbesavedduringthedualshutdownoftheunit.Keywords:660MWunit;circulatingwater;industrialwater;industrialwaterpump;energysaving0引言我国水资源匮乏且分布不均,据相关数据统计,工业水占各种用水总量的20%,其中热力发电厂用水量位居首位[",热力发电厂工业水用水量占比超过40%[2]。一方面,随着“3060"碳中收稿日期:2022-11-18修订日期:2022-12-09作者简介:谢军(1980-),...