井体维护技术机械洗井方法

-84-Detay(1997)AppliedResearchProgramonWaterResourceManagementDetay-85-RegenerationremediationdoublescreenrestorationexternalclogginginternalcloggingDetay(1997)(9-1)-86-9-1(/)2-56-106-126-1212-156-85-8Detay,M.1997.WaterWells.Detay(1997)air-liftingmethodBernoulli’sLaw-87-=+-⎛⎝⎜⎞⎠⎟rr..........................................(9-1)PlPatmρwghAQ9-110cm80m30m1/10bar[]30mρw.gh=1g/cm3980cm/sec23000cm=2940000g/cmsec2=2.94106dyne/cm21bar=1.0106dyne/cm2ρw.gh=2.94bar(10cm)28000cm3000cm=1.57106cm31sec1.57106cm30.11.57105cm3barcmdynecmcmcmgAQw25.1/1025.1)10(sec11057.1/12121263532=×=⎟⎟⎠⎞⎜⎜⎝⎛÷×××=⎟⎠⎞⎜⎝⎛pr1bar12.941.255.19bar-88-56.6%6.56%10019.594.2=barbar9-20.1cm/sec[]sec/1.0)10(1057.1235cmtcmcm-=×pt=5000sec=1.38hr0.11.38hr1013.8hr13.8hr3=41.4hr8hr41.4hr8hr/day=5.175day-89-maximumenergyefficiencyPVC1005,00020,000Francois,Gilmore1996multiplephaseflowcompressed-airmethod-90-BlaisePascal,16231662PaAw=PwAPsA...................................................(9-2)PaAwPwAPsPRs=2sqcos.................................................................(9-3)Rσsurfacetensionconstantθcontactangle0°(9-3)(9-2)PAPRAaww=+⎛⎝⎜⎞⎠⎟2s...................................................(9-4)-91-()PPRAAaww=+2r...............................................(9-5)9-380m10m60%100cm30m10-4cm0.01[]ADcmcmw===14141007854222pp()AπDHϕπ100cm1000cm0.6188495cm2Pw1g/cm3980cm2/sec5000cm1000cm3.92106dyne/cm23.92bar264/1045.110/7.722cmdynecmcmdynePs==-1.45bar01.07854188495)45.192.3(22cmcmbarbarPa=1.29bar-92-dedemsvaartHiatjemab.v.1.5barhigh-pressurewaterinjectormethod8,0001870TNO1860600mm90200m50%jetter360°-93-40mm20mmA1P1A2P2.................................................................(9-6)A1A2P1P29-4170bar10cm0.4cm[]barbarPAAP09.14170)10()4.0(222121===ppdNNaRVdtR=-22pp()Δ........................................................(9-7)NRΔRVtaR,V,ΔR(9-7)-94-⎥⎦⎤⎢⎣⎡Δ-=aRRVNNO2)(2exp....................................................(9-8)EENNO=-1......................................................................(9-9)ERVRRas=---⎡⎣⎢⎤⎦⎥122exp()...............................................(9-10)RsRsa(9-9)WellTechWT-HP120350l/minHaitjemab.v.CarelaWellTechÖrjanHaag170bar1.2.3.-95-1.Detay,M.1997.WaterWells.JohnWiley&Sons.2.Francois,O.,T.Gilmore,M.J.Pinto,andS.M.Gorelick.1996.Aphysicalbasedmodelforair-liftpumping.WaterResourchResearch.Vol.32.No.8,p.2383-2399.3.Hinds,W.C.,1982.AerosolTechnology.JohnWiley&Sons.