Uyini Umehluko Phakathi Kwevalve Yevemvane Ye-Triple Eccentric, Ivaluvu Yevemvane Ye-Eccentric Ephindwe Kabili, Ivaluvu Yevemvane Ye-Eccentric Eyodwa Kanye Nevaluvu Yevemvane Yesikhungo

I-Centerline butterfly valve, i-valve yovemvane ene-eccentric eyodwa, i-valve uvemvane ene-eccentric ephindwe kabili kanye ne-valve uvemvane eccentric kathathu, lezi zinhlobo zamavalvu ovemvane zishintsha isimo sokuvala nokuvula ngokusetha indawo ye-valve plate shaft.

Ngaphansi kwezimo ezifanayo, i-engeli yokuzungeza edingekayo ukuze ipuleti le-valve liphume ocingweni lapho kuvulwa ivalvu lincane kunelinye, futhi i-valve ingaphansi kwe-torque enkulu kunenye ekuvuleni ngakunye.

I-valve uvemvane we-eccentric kathathu:

Ukumelana nokushisa okuphezulu, uphawu oluqinile kufanele lusetshenziswe, kodwa inani lokuvuza likhulu;ngokuvuza kwe-zero, uphawu oluthambile kufanele lusetshenziswe, kodwa alumelani nokushisa okuphezulu.Ukuze unqobe ukungqubuzana kwe-valve butterfly eccentric ephindwe kabili, i-valve uvemvane ibe yi-eccentric okwesithathu.Okubizwa ngokuthi inhliziyo yesithathu iwumumo umbhangqwana wokubeka uphawu akuyona ikhoni positive, kodwa ikhoni etshekile.Isici esiyingqayizivele se-valve ye-butterfly eccentric kathathu ukuthi i-valve okufakwe kuyo i-butterfly plate iyisakhiwo se-shaft esinezigaba ezintathu.Izingxenye ezimbili ze-shaft zesiqu se-valve ye-shaft yezigaba ezintathu zigxile, futhi umugqa omaphakathi we-shaft yesigaba esimaphakathi ususwa emikhawulweni emibili ye-eksisi ngebanga elimaphakathi.Ipuleti lifakwe engxenyeni ye-shaft ephakathi.Isakhiwo esinjalo se-eccentric senza i-disc ibe yi-double eccentric lapho i-disc ivuliwe ngokugcwele, futhi iba yi-eccentric eyodwa lapho i-disc izungeziswa endaweni evaliwe.Ngenxa yesenzo se-eccentric shaft, lapho isiseduze nokuvalwa, ihambisa ibanga endaweni yekhoni yokuvala yesihlalo se-valve, futhi ipuleti levemvane lihambisana nendawo yokuvala yesihlalo se-valve ukuze kuzuzwe ukuvala okuthembekile.

I-valve yevemvane ene-eccentric ephindwe kabili:

Ngokusekelwe ku-valve uvemvane olulodwa oluyi-eccentric, iyivalvu esetshenziswa kakhulu ekabili esetshenziswa kakhulu.Isici saso sesakhiwo ukuthi isikhungo se-shaft se-valve stem sisuka phakathi nendawo ye-disc kanye nesikhungo somzimba we-valve.Umphumela we-eccentricity kabili wenza ukuthi i-disc ihlukaniswe ngokushesha esihlalweni se-valve ngemva kokuvulwa kwe-valve, okuqeda kakhulu ukukhishwa ngokweqile okungadingekile nokunwaya phakathi kwe-disc nesihlalo se-valve, kunciphisa ukumelana nokuvula, kunciphisa ukuguga, nokuthuthukisa i-valve. ukuphila kwesihlalo sokusebenza.

I-valve yevemvane ene-eccentric eyodwa:

Ukuze uxazulule inkinga ye-extrusion phakathi kwe-disc kanye nesihlalo se-valve ye-valve ye-butterfly egxilile, i-valve ye-butterfly eyodwa ye-eccentric ikhiqizwa.Isikhungo se-Axial, ukusabalalisa, kunciphisa ukukhishwa ngokweqile kwamaphethelo aphezulu naphansi wepuleti kanye nesihlalo se-valve.

Ivalve uvemvane yomugqa omaphakathi

Isici sesakhiwo se-valve butterfly yomugqa ophakathi ukuthi isikhungo se-shaft yesiqu, isikhungo se-disc kanye nesikhungo somzimba we-valve sisesimweni esifanayo.Ngenxa yokuthi ipuleti levemvane kanye nesihlalo sevalvu kuhlala kusesimweni sokuphuma nokukhuhla, ibanga lokumelana likhulu futhi ukuguga kuyashesha.Isakhiwo esilula nesikahle.Ukuze unqobe i-extrusion kanye nokunwaya ukuze uqinisekise ukusebenza kokuvala, isihlalo sevalvu ngokuyisisekelo senziwe ngezinto ezinwebekayo njengerabha noma i-PTFE.