螺杆压缩机用静压式干气密封国产化研究与应用_陆昕

258ApplicationandTest163714、、。。TH455B1006-2971201604-0050-03ResearchontheLocalizationofHydrostaticDryGasSealUsedforScrewCompressorandItsApplicationLUXin(DaqingPetrochemicalCompany,Daqing163714,China)Abstract:Hydrostaticdrygassealisusedastheshaft-endsealinanoil-freescrewcompressorforastyreneunit.Thispaperhigh－lightsthestructure,principle,advantages&disadvantagesofthistypeofseal.Combinedwiththeusingimportedsealandhydrostaticgaslubricationtheory,thedimensionsofsealaredesigned.Meanwhile,thesuitablematerialsareselectedaccordingtotheoperatingconditionsandpumpingmedium.Thelocalizationofoil-freescrewcompressorhydrostaticdrygassealissuccessfullyrealized.Keywordsscrewcompressor;hydrostaticdrygasseal;orificeflow;material10t/a542.6mm。、、。、。。。。。50DOI:10.16051/j.cnki.ysjjs.2016.04.011258ApplicationandTest。准220mm3849r/min4721r/min2249r/min100~145℃0.02MPaA0.2MPaAH296%CO0.01%CO22%N2O2+。。。。。。。。。。、1。82、。1、51258ApplicationandTest、、234。。、、。。、。。。《》。m=A·ps·准2·ρapa·Ψ姨A———A=πd2/4d———mmps———Pa准———Ψ———pa———ρa———pa、O。、。0Cr18Ni9Cr203HRC50-70、、。、、300~500℃。FFKMFKM。SUS304。。。、。[1].[M].2006126-127138-139.[2].[M].2002150-155.[3].[M].1990.[4].[J].201119125-126.[5].[J].2009436-38.。52