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当前位置:首页 > 机械/制造/汽车 > 机械/模具设计 > 大型机械通风冷却塔电动风机的节能改造陈应新
EnergysavingrenovationfortheelectricfansofthebigmechanicalventilatingcoolingtowerChenYingxin(NanjingYangziPetro-ChemicalDesignEngineeringCo.,Ltd.,Nanjing210048,China)(,210048)[],,(、),、、、、,。[];;;[]TQ085[]B[]1005-829X(2009)01-0077-03Abstract:Basedonanengineeringexample,theprincipleandadvantagesoftheenergysavingrenovationfortheelectricfansofthebigmechanicalventilationcoolingtowerisexpoundedsystematically.Thedesignprocessofusingthemicrodoubleclickcoolingwatertowerspecificwater-drivenfanstoreplacethemotors(transmissionshift,anddeceleratingmachine)isintroduced.Thebriefstatementoforiginalestablishment,generalsituationofrenovationengineering,datacalculationandanalysis,calculationofenergysaving,recoveryperiodofstaticinvestmentandeffectevaluationonenergysavingareincluded.Keywords:coolingtower;electricfans;water-drivenfans;energysavingrenovation,(、),。,,。,。,。,,,,。136D8.53m,2500m3/h、10℃,15000m3/h;5,24sh-9A,3420m3/h、71m,780kW、6kV,4、1,13680m3/h。1.1:;:12;:36;:;11.0m×13.0m×12.0m;:2500m3/h;:2680m3/h(0.74445m3/s);:10℃;:32.6℃/27.4℃;:800mm;:50%。1.2:;:L85A;:6;:8530mm;:2.62×106m3/h;:154Pa;:136r/min;:8;:19.5~22.5°;:(、、);29120091IndustrialWaterTreatmentVol.29No.1Jan.,200977:160kW;:380V;:288A;:157A。1.3:;:24sh-9A;:5;:4,1;:3420m3/h;:71m;:2m;:60m;:780kW;:6kV;:91A。22.161,4#,(、),。,,,、。,,。、1。2.2,:ZL02216412.X。,::;:SJ3000B();:3000m3/h;:≥10mH2O;:450mm;:700mm;:80.7kW;:136r/min;:85%;1065mm×1331mm×1195mm;:;:45#;:SKF;:1200kg。2.3112.46,76,20.17,2.19,0.57,13.53。31。:(1)。,,,。,。(2)。、、、,、、,。(3)。,,,,。(4)。。(5)。、、,、、。(6)。,。,,,,。(7)。、、,、,。44.1(1)。H=H-(H-H)=71-(60-2)=13(1):H———,m;1、1/(kW·t-1)0.04~0.06、、、、、5×10-52×10-3,75dB(A)85dB(A)2009-01,29(1)78:2009-01,29(1)H———,71m;H———,60m;H———,2m。4.2(2)。P=9.81×Q×H×η=9.81×0.74445×13×0.85=80.7kW(2):P———,kW;9.81———;Q———,0.74445m3/s;H———,13m;η———,0.85。4.3(3)。P=3姨×U×I×cosφ×η×η×η=1.731×0.38×157×0.85×0.95×0.95×0.95=75.3kW(3):P———,kW;U———,380V;I———,157A;cosφ———,0.85;η———,0.95;η———,0.95;η———,0.95。,。4.42500m3/h,10℃,0.84,:2500×0.84×1000÷1.12=1.875×106m3/h4.5(1)2.62×106m3/h,1.875×106m3/h,7.45×105m3/h,,,15%(11.3kW)。(2)30%(22.6kW)。(3)():75.3-11.3-22.6=41.42kW,,,(、),,。5160kW,8000h,:160×8000=1.28×106kW·h0.52,:0.52×1.28×106=66.56,12500m3/h,,66.56。、、、,。61112.46,66.56,():112.46÷56.56=1.69a,1,1.69a。71,20082—3,20083。、、、、,,。:、;、;,100%,;,;;。8,。,,,,,,,100%。[](1966—),1988,,、、。:13951811789,E-mail:chen.yingxin@ypdi.com.cn。[]2008-09-05()79
本文标题:大型机械通风冷却塔电动风机的节能改造陈应新
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