电热锅炉和电热蓄热器设计计算

:1004-8774(2000)02-05-04(,200023)::;;;;:TK229.92:ADesignandCalculationoftheElectricityHeatedBoilerandElectricalHeatAccumulatorSUNNeng2zheng(ShanghaiBoilerWorks,Shanghai200023,China)Abstract:ThepaperintroducedtheapplicationprospectoftheelectricityheatedboilerandelectricalheataccumulaloraswellasthecommonstructureandcalculatingmethodoftheelectricityheatedboilerKeywords:Electricityheated;Boiler;Heataccumulator;Design;Calculation1,,,,,,,,,,,,,,,,,,,,:2000-04-02,,,,,,2,2.1,(1),,,,,,5©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1,2.2,,,(2)2,,,:,,;,,,,,,,,,,,,2.3660,,,3,,3,,,,,(),,,,,,,,,,,,620002(62)©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.33.1,:1kW=860kcalöh,(2%),(),,3.2,(4),bcde,,a,a,,:4a.b.c.d.e.(1),Q=i+ibh-(1+)iGDi,kJökg(kcalökg)i,kJökg(kcalökg)ibh,kJökg(kcalökg),%D,kgöh(töh)G,98%(2),,,,,,,,,,(5),(M):EM=f(x,y,t)(1)M:N=CEE=CE2(2)CE:7©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.5,,:N=hCx2x1y2y11ö500E2dxdydz(3),,:,;;:A(0,3b),B(b,0),C(-b,0)M,(x,y),:RA=x2+(y-3b)2;RB=(x-b)2+y2;RA=(x+b)2+y2(4)M(x,y):E-N=E-A+E-B+E-C=KA2PEC2R-A+KB2PEC2R-B+KC2PEC2R-C(5)KAKBKC(5)(3),,,4,,,,,,,,,,,,,,,,,,,345(,,,2)458:55,:100053:,:0981106810001::831540811999(),,,2231999(),240:121(200126)820002(62)©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.