I-valve uvemvane oyi-eccentric kabili iwukuba i-axis yesiqu se-valve ichezuka kusukela kukho kokubili indawo emaphakathi yepuleti lovemvane naphakathi nendawo yomzimba. Ngokwesisekelo sokubonakala okuphindwe kabili, ipheya evalayo yevalve uvemvane eccentric kathathu iguqulwa ibe ikhoni etshekile.

Ukuqhathaniswa kwesakhiwo:

Kokubili i-valve ye-butterfly eccentric ephindwe kabili kanye ne-valve ye-butterfly eccentric kathathu ingenza ipuleti levemvane lisheshe lishiye isihlalo se-valve ngemva kokuvulwa, kuqede kakhulu ukukhishwa ngokweqile okungadingekile nokuklwebheka phakathi kwepuleti uvemvane nesihlalo se-valve, kunciphise ukumelana nokuvula, kunciphise ukuguga nokuthuthukisa impilo yesevisi yesihlalo se-valve.

Ukuqhathaniswa kwezinto:

Izingxenye zokucindezela eziyinhloko ze-double eccentric butterfly valve zenziwe nge-ductile iron, futhi izingxenye zokucindezela eziyinhloko ze-valve butterfly eccentric ezintathu zenziwe ngensimbi yokusakaza. Amandla e-ductile iron kanye ne-steel casting ayaqhathaniswa. I-Ductile iron inamandla okukhiqiza aphezulu, inamandla okukhiqiza aphansi angu-310mpa, kuyilapho amandla okukhiqiza ensimbi ekhonjiwe angama-230MPa kuphela. Ezinhlelweni eziningi zikamasipala, ezifana namanzi, amanzi anosawoti, isitimu, njll., ukumelana nokugqwala kanye nokumelana ne-oxidation ye-ductile iron kungcono kunokwensimbi ekhonjiwe. Ngenxa ye-spheroidal graphite microstructure ye-ductile iron, i-ductile iron ingcono kunensimbi ecijile ekwehliseni ukudlidliza, ngakho-ke isiza kakhulu ekwehliseni ingcindezi.

Ukuqhathaniswa komphumela wokuvala:

I-valve yevemvane eyi-eccentric kabili ithatha isihlalo esiyisiyingi nesintantayo esinwebekayo. Ngaphansi kwengcindezi enhle, imvume ebangelwa ukubekezelelana komshini kanye nokuguqulwa kwe-valve shaft nepuleti levemvane ngaphansi kwengcindezi ephakathi nendawo kwenza indawo eyindilinga yepuleti lovemvane ilingane eduze nendawo yokuvala yesihlalo sevalvu. Ngaphansi kwengcindezi engemihle, isihlalo esintantayo siqhubekela engcindezini ephakathi nendawo ngaphansi kwengcindezi ephakathi, nxephezela ngokuphumelelayo imvume ebangelwa ukubekezelelana kwemishini kanye nokuguqulwa kwe-valve shaft kanye nepuleti levemvane ngaphansi kwesenzo sengcindezi ephakathi, ukuze kuqashelwe ukubekwa uphawu okuphambene.

Ivalvu yevemvane eqinile ene-eccentric eqinile ithatha isihlalo esinamavalvu ayi-conical engashintshi kanye nendandatho yokuvala enamazinga amaningi. Ngaphansi kwengcindezi enhle, ukucaciswa okubangelwa ukubekezelelana kwemishini kanye nokuguqulwa kwe-valve shaft kanye nepuleti yevemvane ngaphansi kwengcindezi ephakathi kwenza indandatho yokuvala enamazinga amaningi ilingane eduze nendawo yokuvala yesihlalo se-valve, kodwa ngaphansi kwengcindezi ehlanekezelwe, indandatho yokuvala yamazinga amaningi izoba kude nendawo yokuvala yesihlalo se-valve, Ngakho-ke, ukuvala uphawu okuhlanekezelwe akukwazi ukufezwa.