螺杆式双级压缩系统的分析与应用(下)

()()(3),,,,,,,,,R22R134a:,,,,CoolScrew,,,;,,;,CoolScrew,,R22,,(),COP(4),,,,,,,,,,,,,COPCoolScrew-40,5,40,5,R717,LG31.5,4290m3/h,,54,,;47,;4,COPCOP,,,,,,COP5LG16DLG16LG20DLG20LG25DLG25LG25Tm3/h4365748521120166321892831-9.839457.473875.035213.830362.579681.95981.5153729.699612.16052.78549-2.83951-11.277-16.5895-21.5895kW599.058724.895785.752821.627868.576897.264923.007()kW525.159441.203434.993448.365495.445543.761614.078COP-1.140721.642991.806361.832491.753121.650111.5030845200410REFRIGERATIONANDAIR-CONDITIONINGVol.4,No.5October20044(:)5,CoolScrew,1,(40,50),5PII400/128MB,,,,,,(5)VS,?6CoolScrewR717,5,40;,56R717-30(kW)0.78610.9750.9961.1031.114COP0.84111.1221.1961.1621.221-40(kW)0.75311.0971.1181.2171.229COP0.79811.3211.3981.3761.440:(a)COP,,;(b)COP(6),,,-30,,:R717,-30,2LG20A2001LG16A100,2LG20,765:()3,,LG20A280A,LG16A150A,710A,3,2LG20A200,1LG16A100,16m2,,,LG16A100kW125kW,LG20A200kW,,3,,440A,38%,,?(6)66,;cos;I;M50%,;75%,cos,,,75%,50%,30kW380V,Y-,,,380V220V,13,13,p=3UIcos,1/3,,,,,,(7),-(ASHP),,,1,R22R134a,,GB/T18430.1-2001()(),40/45,7/6,-8,49,R225,R134a5.9,,,,,,,,6(1),,,(integraltwostagescrewcom2pressors)/,(Ingersoll-Rand)(Mycom)(Kobelco)(78)7Mycom3000r/min,322520(2),,,8647Mycom8Kobelco7Mycom--m3/h(50Hz)-11612LSC620.14196.8023.1521612LLC620.14294.4952.1132016SSC731.99413.4262.4542016MSC1012.3413.4261.7752016LSC1207.7413.4262.9262520SSC1571.6807.031.9572521SLC1571.61207.711.3082520MSC1982.2807.032.4692520LSC2364.5807.032.93102420LMC2364.51012.332.34113225SSC3157.31571.582.01123226MSC39361571.582.50133225LSC4714.81571.583143226LLC4714.82364.461.99,,,(a),;(b),,;(c),,,,R717R22,,,,,,,,,2,,3,(3),,COP,,,,-40:(a),;(b),965:():Gd(hd-hg)+CpGdoil(td-tg)=(Gg-Gd)(hg-hz),G;d,g,z,oil;,,,,COP,,COP(a),,,COP(b),,,,,COP(c),,,COPCOP,?,,COP?,CoolScrew,2,Mycom3225LSCCOP(R717,40,50,5,COP),9:(a),COP;(b),,,COP,,,,CoolScrew,1.5MPa10m50N46,252.5241.6/,202131.7/,18291.5/,14243.4/COPCOP,10CoolScrew3COP9COP10COP,COP,,COP,,,,,,,,3LSC,,(85)074,,6,,,,(1),,,,(2),,(3),,,,0.5%1%,15%20%,,,7(1),,,;,(2),,,(3),,1Graham,J.B.Fanselectionbycomputertechniques[J].Heating,PipingandAirConditioning(April):168.1966.2Systemandequipment,fan[M].ASHRAEFundamentalsHandbook,2000,15.1215.17.3.[M].:,1997.4.[J].,1999.(70),,,,,,1.CoolScrew.,2002.2.2.-.:,2000.4..:,1992.5M.J.Skovrup,H.J.H.KnudsenandH.V.Holm,RefrigerationutilitiesVersion2.84,2000.6./.:,2002.7GSVCompressorunitdocument,GRAM,Denmark.8..:,1987.9.(2).:,1997.10.().:,1998.585: