供水系统的费用函数理想管径与经济流速姜海波

36l2004lJOURANLOAFHRIIBNNSTITUETOFTECHNOLOGYVol.36N(2《XM、(,3《x50,Emial:[e-mail]):、、、.,,.,,,.:;;:TUZ:A:03676234(20()01008403Costfunction,oPtimalPIPediameterandeconomiealflowveloeiytofwatersuPPlysystemJIANGHaibo(CenterofEneSavingeTchnolo,NavygistieAeademy,Tianjin30(”50,China,Email:[e-mail])Abstract:Experssionshavebeenestablishedforthepowereost,facilityeost,mainlayingeost,inteersteostandgorsseostofadendirtiewatersupplysystem,whiehporvidesthetheoertiealbasisandealeulatingmeansforrationalitytestingofalldesignPaarmetersanddieretsearehingforoptimalpaarmetesr.Byusingtheeostfone-tions,eomputingfomrulashavebeendeirvedforoptimalpipe`liameterandeeonomiealflowveloeityofwaterinthepiPesandsuPPortiveeomPutingeasesaswell.Keywodrs:watersupplysystem;eeonomiealflowveloeity;enersavingdesign,,,,,.,,,.,;,.,,,,.,B,,.,:20021226.:(1962),,.,,,.l、Cr(),,,C,=krHQt.:kr;`.、()、()3.C,c、.Cbc、.()C。,,C=1:、keHQc。.:。;H;Q;c。.,.,.(),,(,).,,.,l`、d`,C,`=k,d)l`+e*.:k,;d`;l`;c,`·1,q,p,(q.,1,p.C`=k(,l,…+H=0H+(hfl+h64.0H。+.+)=(2)tj6ù,ldn,Q=,.(3)(2)、(3)(1),。*r!。1(。·`、+keQI(0H+64·-n{l`:、-)+zd{l;+e。·(4)k,d:;+〕l,,*,k,d{l`++…+,d:l,)+(e,.+…+c,,)=c,`.〔’〕.,().m,*,m(1+、)’.,,m,.CA,e、「(1+)”z]/.(4)(,):Ct;=krr。f,,64.nl、Q\.。}\i=1d.3,(l+w)ml·`·Ql(、··n)l:{-di31Fig.1Sketehmapofwatersupplypipelines(l+w)”+(,d{l:+e。)(l+`)’·,C,=Cr+C。+C`+CbkrHQr+keH++?、,d{l+c。·:。。,。。=。e(l)(5):CtF,t。.,,,.=、r`。。:{).)+\,1+w)’w(l),h,lA=z/().c=(Fn)R“=(Fn)(4)“hf,f=·(/·&dj,):c;n;R.、H。,,p,“·)·`、“:Z`,·,.,,;,,.632.,,;,,..,,.,,.,,(、),(5),aCtF/ad,=0,,,.1`Tab.1eRladosn.betwee”IPePeetrerrorandsy-neUcalerrorof1indeePndentvadables%~~~~’.”`’..`’~n1.39.9l0oo0.10.7(·()`1,”`Zk,d111(l+w)=0.d=512·{、r`。l(l+、)]/+、e}。:Q{32,r.n(_t。rl(l+、、1/、+_、1d,.tklJ(6),d、0,,d。=「.n0._`。rl+)/。+、_)1tIJi=2,3,…,p,qp1,…,q,().,d`=(n`Q`/nIQ;)·dl.(7)((6)),(7).〔’].d=(kr:。[1(l+、)’〕/w+ke)kl3X.3、.、J.x,dd,。、[(+。:)」=(+。)1.1.1,。,4(,)4·Q}27.45n,(、rot【l(1+,)」、e),}’(8),“”.(8),,,.3200m3/h,50m,20a.,5/h(),.,nkw,100m3h/,50m,5040s/m4;0.5/.1000m、0.Zoom(0.012)750)(,,).205%.(,),:,(C。e,)/d,l1875;k,=Cr/=.011·,、,,,.}k,-,(krot[1(l+、)’]/(90)362BPTab.2TheOdenectionbasinandBpneurenwtorksanticipaetddenecitonbasin203mD1DZD3D4DSD6D7DD,0.2280.2020.1570.1180.0880.0660.0490.0340.0210.2230.1980.1530.1160.0870.0650.0480.0340.0212、35000,.2.8%,(7.8、10,.)3tMaPTab.3ModulebackaClculiatgnserulstofirigdaPvement/%2.1x1042.7l.sxl042.163xl042.8805010581.541.9eulationofpavementlerporperty〔J〕.TransportationReseacrhReeodr,1993(354):l7.【8」,,.—〔Jj.,2(),33(l):8387.【9],,.〔jJ.,2x〕,33(4):93%.【10」.M」.,,.:,】998()4l)、,,,,、,.GAANN.2).3).,.、,.,GA,.:【1」,,,.〔M].:,1993.2〕,.〔J」.,2X()l,34(6):5559·〔33,.〔M〕.:,20(X).【4〕,,,.【JJ.,1999,18(5):497502.〔5」,,,.〔J〕.,2003,35(9):10931094.【6],,.〔J].3,35(4):·[7〕RoBERTLL.Systemidenti6eationmethodforbaekeal-(,6)、+、。)}=0.3o3m、2=(。22/nl,)·、、=0.11lm,v、4,/=0.s,。:=4.014.s,,2.2Tab.2eRlosnbetweenoitPmaldiameterofPIePs.e,cononealflowvelocityofwaterinsevearlde·gnIifespans——l。m/(m·s,)/mml(m·s,)1102050,.,、、、,,.:「1」,.M〕.:,1987.【ZJTHuMANNAPE.〔M〕.:,1987.〔3].〔M」.:,1986.()