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Izici ze-Butterfly valve kanye nokusetshenziswa kolwazi oluncane

Ngawo-1930, i-United States yasungula i-butterfly valve, eyethulwa eJapane ngawo-1950, futhi ayizange isetshenziswe kabanzi eJapane kwaze kwaba ngawo-1960, kuyilapho ukukhuthazwa eShayina kwakungemva kweminyaka yawo-1970.Njengamanje, emhlabeni, ububanzi obujwayelekile bungaphezu kwe-DN300, i-valve ye-butterfly ishintshile kancane kancane i-valve yesango.Uma kuqhathaniswa ne-valve yesango, i-valve ye-butterfly inesikhathi esifushane sokuvula nokuvala, ukusebenza umzuzu omncane, indawo encane yokufaka nesisindo esincane.Thatha i-DN1000 njengesibonelo, i-valve ye-butterfly imayelana ne-1.2T, kuyilapho i-valve yesango imayelana ne-3T, futhi i-valve butterfly ihlanganiswe kalula namadivayisi ahlukahlukene okushayela, ngokuqina okuhle nokuthembeka.

Ububi be-rubber sealing butterfly valve yukuthi uma usebenzisa njenge-throttle, ngenxa yokusetshenziswa okungalungile, kuzokhiqiza ukugqwala kwegesi, ukuze isihlalo senjoloba sicwebe, umonakalo kanye nezinye izimo zizokwenzeka.Kuze kube manje, manje isivalo sovemvane seal seal senziwe emhlabeni wonke, futhi indawo yokuguguleka komoya iye yancishiswa.Eminyakeni yamuva nje, i-China iphinde yasungula i-valve uvemvane evalwe ngensimbi kanye ne-valve yebhola ejikelezayo evalwe uphawu.Eminyakeni yamuva nje, i-Japan iphinde yathuthukisa ukumelana nokugqwala kwegesi, ukudlidliza okuphansi kanye nomsindo ophansi wevalve uvemvane omise okwekama.

Ukuphila kwesihlalo esivamile sokuvala, ngaphansi kwezimo ezijwayelekile, iminyaka engu-5-10 yerabha, kanye neminyaka engu-30-50 yensimbi.Kodwa indlela yokukhetha ngendlela efanele ihambisana nezidingo zezimo zokusebenza.

Ubudlelwano phakathi kwedigri yokuvula yevalve uvemvane kanye nezinga lokugeleza ngokuyisisekelo kumugqa ngokulingana.Uma isetshenziselwa ukulawula izinga lokugeleza, izici zayo zokugeleza nazo zihlobene eduze nokumelana nokugeleza kokusabalalisa kwamapayipi, njengobubanzi kanye nefomu lamapayipi amabili okufaka i-valve kuyafana, kanye ne-coefficient yokulahlekelwa kwepayipi. ihlukile, izinga lokugeleza kwe-valve lizophinde lihluke kakhulu.

Uma i-valve isesimweni esikhulu se-throttle, ingemuva lepuleti le-valve lijwayele ukugqwala komoya, okungenzeka kube ne-valve eyonakele, i-valve ngokuvamile isetshenziswa ngaphandle kwe-15 °.

I-valve yovemvane endaweni evulekile emaphakathi, umumo wokuvula owenziwe umzimba we-valve kanye nengxenye engaphambili yepuleti lovemvane igxile ku-valve shaft, futhi kwakheka izimo ezihlukene nhlangothi zombili, ingaphambili lepuleti uvemvane ohlangothini olulodwa lihamba lihambisana. isiqondiso samanzi ahambayo, futhi olunye uhlangothi luhamba ngokumelene nokuqondisa kwamanzi agelezayo.Ngakho-ke, umzimba we-valve owodwa kanye nepuleti le-valve kwenza ukuvuleka kwe-nozzle, kanti olunye uhlangothi lufana nokuvuleka okumise okwembobo ye-throttle.Uhlangothi lwe-nozzle lushesha kakhulu kunohlangothi lwe-throttle, futhi ingcindezi engemihle ngaphansi kwe-valve eseceleni ye-throttle, ngokuvamile ibonakala ivaliwe irabha.

I-torque yokusebenza ye-valve ye-butterfly inamanani ahlukene ngenxa yezinga lokuvula kanye ne-valve yokuvula nokuvala isiqondiso.I-valve ye-butterfly evundlile, ikakhulukazi i-valve yosayizi omkhulu, ngenxa yokujula kwamanzi, i-torque ekhiqizwa i-valve shaft kanye nomehluko wekhanda lamanzi awukwazi ukushaywa indiva.Ngaphezu kwalokho, lapho idivayisi ye-valve inlet side igoba, ukuphambuka kwakhiwa, futhi i-torque izokhula.Uma i-valve isezingeni eliphakathi lokuvula, indlela yokusebenza idinga ukuzikhiya ngoba i-torque yokugeleza kwamanzi iyasebenza.


Isikhathi sokuthumela: Dec-20-2021