冷渣器冷却水回水接入点分析及改进方案 analysis about jointing point of returned cooling water from the slag cooler and improvement scheme thereof.pdfVIP
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冷渣器冷却水回水接入点分析及改进方案 analysis about jointing point of returned cooling water from the slag cooler and improvement scheme thereof
冷餐器冷却水回水
接入点分析及改进方案
黄嘉驷1,张爱军2,魏铜生1,钱毓敏
1.西安热工研究院有限公司,陕西西安 710032
2.华能呼伦贝尔能源公司,内蒙古海拉尔021008
摘要:针对蒙西发电厂2×300MW机组的冷渣器冷却水回水接入点不当,导致机组整体循环效率降
低,影响机组运行经济性的问题进行了分析,提出了优化改进方案。与原接入点相比,采用将冷
渣器冷却水回水接入7号低压加热器(低加)入口,且所有凝结水串联通过冷渣器和7号低加的
方案,可使机组负荷在292MW时供电煤耗率下降1.25g/(kW·h),在202MW时供电煤耗率
下降1.67g/(kW·h);采用将冷渣器冷却水回水接入6号低加入口,且凝结水并联通过冷渣器
MW
和7号低加的方案,可使机组负荷在292Mw时供电煤耗率下降0.83g/(kW·h),在202
时供电煤耗率下降1.22g/(kW·h)。
关键词:蒙西发电厂;300MW机组;冷渣器;冷却水;回水;接入点;煤耗率
中图分类号:TK223.4文献标识码:B文章编号:1002—3364(2009)03—0075—03
ANALYSISABOUT PoINToFRETURNEDCooLlNGWATER
JOINTING
FRoMTHESLAGCoOLERANDIMPRoVEMENTSCHEMETHEREoF
HUANGJia—sil,ZHANG Yu—minl
Ai—jun2,WEITong—shen91,QIAN
1.Xi’anThermalPowerResearchInstituteCoLtd.Xi’an710032.ShaanxiProvince,PRC
Hulunbeir 021008,InnerRegion,PRC
2.Huaneng EnergyCompany,Hailar Mongolian
Abstract·Directiongagainst ofreturnedwaterfrom coolerof2×
improperjointingpoint cooling slag
300MW in of andits e—
units PowerPlant.thedecrease influence
Mengxi integralcycleefficiency upon
conomic in oftheunitshavebeen an scheme
efficiencyoperation analysed,andoptimizedimprovement
onthebasisofdataobtainedfromresultsof withthe U—
forward
beingput analysis.Comparedoriginal
from of
whichthereturenedwater cooleris intotheinletlow—
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