Ivalvu yevivaneluhlobo lwe valve lesebentisa incenye yekuvula nekuvala ye disc kwentela kubuyisela cishe nga 90° kuvula, kuvala noma kulungisa lizinga lekugeleta kwe medium. Butterfly valve akugcini nje ngesakhiwo lesilula, usayizi lomncane, sisindvo lesilula, kusetjentiswa kwetintfo letincane, usayizi lomncane wekufakwa, i-torque lencane yekushayela, kusebenta lokulula nalokusheshako, kepha futsi unemsebenti lomuhle wekulawula kugeleza kanye netimphawu tekuvala tekuvala, futsi ngulenye yetinhlobo tevalve letikhula ngekushesha eminyakeni lelishumi leyengcile. Emavalvu eluvivane asetjentiswa kakhulu. Tinhlobonhlobo kanye nebuningi bekusetjentiswa kwayo kuyachubeka kwandza, futsi kutfutfuke kuya ekushiseni lokusetulu, umfutfo lomkhulu, bubanti lobukhulu, kucina lokusetulu, imphilo lendze, timphawu tekulawula letinhle kakhulu, kanye nekusebenta lokuningi kwe valve yinye. Kwetsembeka kwayo kanye naletinye tinkhomba tekusebenta setifinyelele ezingeni lelisetulu.
Ngekusetjentiswa kwerabha yekwentiwa lemelana nemakhemikhali kuemavalvu evivane, kusebenta kweemavalvu evivanesekwentiwe ncono. Ngenca yekutsi irabha yekwentiwa inetimphawu tekumelana nekugcola, kumelana nekuguguleka, kusimama kwebukhulu, kumela lokuhle, kwakheka kalula, tindleko letiphansi, njll, irabha yekwentiwa lenetimphahla letehlukene ingakhetfwa ngekuya kwetidzingo letehlukene tekusebentisa kuhlangabetana netimo tekusebenta te .emavalvu evivane.
Ngoba i-polytetrafluoroethylene (PTFE) inekumelana lokucinile kwekugcola, kusebenta lokuzinzile, akulula kuguga, coefficient lephansi yekukhuhlana, kulula kuyakha, kusimama kwebukhulu, futsi ingatfutfukisa timphahla tayo letiphelele ngekugcwalisa kanye nekwengeta tintfo letifanele, le-coefficient valve yekuvala ye-butterfly i-lower intfo yekuvala kanye ne-lower street. yerabha yekwentiwa yancotjwa, ngako-ke tintfo te-polymer polymeric letimelelwe yi-PTFE kanye netintfo tayo letiguculwe tekugcwalisa tisetjentiswe kakhulu ku-valve ye-butterfly, kute kusebenta kwe-valve ye-butterfly kwentiwe ncono kakhulu.Emavalvu evivanengeluhlu lolubanzi lwekushisa kanye nekucindzeteleka, kusebenta kwekuvala lokutsembekile kanye nemphilo lendze yekusebenta sekwakhiwe.
Kute kuhlangabetwe netidzingo tekusebenta kwetimboni letifana nekushisa lokusetulu nalokuphansi, kuguguleka lokucinile, kanye nemphilo lendze, emavalvu e-metal seal butterfly atfutfukiswe kakhulu. Ngekusetjentiswa kwekumelana nekushisa lokusezingeni leliphakeme, kumelana nekushisa lokuphansi, kumelana nekugcola lokucinile, kumelana nekuguguleka lokucinile, kanye netintfo te-alloy letinemandla lamakhulu kumavalvu e-butterfly, emavalvu e-butterfly lavaliwe ensimbi asetjentiswe kakhulu emasimini etimboni lafana nekushisa lokusezingeni leliphakeme nalokuphansi, emavalvu laphakeme ekuguguleka, kanye nemphilo lendze ye-butter ~ lar7mm, kanye nekuphila lokudze kwe-large9). umfutfo (42.0MPa) kanye neluhlu lolukhulu lwekushisa (-196~606°C) sekuvele, kwentela kutsi bucwepheshe bemavalvu eluvivane bufike esigabeni lesisha.
Uma ivalve yevivane ivulwe ngalokuphelele, inekumelana lokuncane kwekugeleza. Uma kuvulwa kusemkhatsini wa 15°~70°, kungasetjentiswa kulawula kugeleta lokubucayi, ngako kusetjentiswa kwe butterfly valve kuvame kakhulu emkhakheni wekulungisa lokukhulu-lokukhulu.
Ngenca yekunyakata lokusulwako kwepuleti levivane yevalve yeluvivane, emavalvu lamaningi eluvivane angasetjentiselwa imidiya lenetintfo leticinile letimisiwe. Kuya ngemandla e-seal, ingaphindze isetjentiswe ku-powder kanye ne-granular media.
Emavalvu e-butterfly alungele kulawula kugeleza. Ngenca yekutsi kulahlekelwa kwemfutfo we-valve ye-butterfly epayipini kukhulu kakhulu, cishe katsatfu kutsi kwe-valve yesango, lapho ukhetsa i-valve ye-butterfly, umtselela wekulahlekelwa kwemfutfo weluhlelo lwemaphayiphi kufanele ucatshangelwe ngalokugcwele, futsi emandla epuleti le-butterfly kutsi athwale umfutfo we-pipeline medium futsi kufanele ucabangele. Ngetulu kwaloko, imikhawulo yekushisa lokusebenta lapho khona tintfo tesihlalo se-elastomeric tingabekwa ngaphansi kwekushisa lokusetulu kumele kuphindze kucatshangelwe.
Le valve ye butterfly inebudze lobuncane bekwakha kanye nebudze lobuphelele, kuvulwa lokusheshako kanye nekuvala, kanye netimphawu letinhle tekulawula emanti. Umtsetfo wesakhiwo semavalvu e-butterfly ulungele kakhulu kwenta emavalvu lamakhulu-e-bore. Uma kudzingeka kutsi kusetjentiswe ivalve ye butterfly kulawula lizinga lekugeleta, kubalulekile kukhetsa linani lelifanele kanye neluhlobo lwe valve ye butterfly kwentela kutsi isebente kahle futsi ngemphumelelo.
Ngalokuvamile, ekucindzeteleni, kulawula umtsetfo kanye nendzawo lesemkhatsini yeludzaka, budze besakhiwo bufishane, sivinini sekuvula nekuvala siyashesha, futsi kukhishwa kwemfutfo lophansi (umehluko lomncane wemfutfo) kuyadzingeka, futsi kunconywa ivalve ye butterfly. Emavalvu ebutterfly angasetjentiswa uma kunekulungisa tindzawo letimbili, umzila we diameter lencishisiwe, umsindvo lophansi, cavitation kanye nekuhwamuka, kuvuza lokuncane emkhatsini, kanye netindzaba letikhuhlako. Ngaphansi kwetimo letikhetsekile tekusebenta, kulungisa throttling, noma kuvala lokucinile, kugcoka lokukhulu, kushisa lokuphansi (cryogenic) kanye naletinye timo tekusebenta.
Sikhatsi sekuposa: Lweti-02-2024
