Ukuze kuqinisekiswe ukusebenza kokuvala kwe-valve yebhola yensimbi engagqwali lapho ukucindezela okuphakathi kokusebenza kuphansi, ingcindezi ethile yokuqinisa ngaphambili kufanele yakheke phakathi kwebhola nesihlalo sokuvala.Esihlalweni sokuvala esiqinile, ukwethembeka kanye nempilo yesevisi ye-valve yebhola yensimbi engagqwali kuboshelwe ekukhethweni okulungile kwenani lokuqinisa ngaphambilini lesihlalo sokuvala.
Ukuthembeka nempilo yesevisi ye-valve yebhola yensimbi engagqwali;qinisa inani lokuqinisa ngaphambilini lokukhetha okulungile kwesihlalo sokuvala.Ukuntuleka kokuqina kwangaphambili akukwazi ukuqinisekisa ukuqina kokucindezela okuphansi kwe-valve yebhola: ukuqina okukhulu kakhulu kwangaphambili kuzobangela i-torque ephikisanayo phakathi kwebhola kanye nesihlalo sokubeka uphawu, okuthinta umsebenzi wesenzo se-valve yensimbi engenasici;futhi kungase kubangele ukuguqulwa kwepulasitiki kwesihlalo sokuvala, okuholela ekuhlulekeni kokuvala.Mayelana nesihlalo sokuvala se-PTFE, ingcindezi ethile elayishwa kuqala kufanele ngokuvamile ibe ngu-0.1 PN futhi ingabi ngaphansi kuka-1.02 MPa.
Ukulungiswa kwenani eliqiniswa ngaphambili lesihlalo sokuvala esiqinile kuqedwa ngokushintsha ukushuba kwe-gasket yokulungiswa kokuvala.Iphutha lokucubungula le-gasket yokulungisa uphawu lizothinta umphumela wokulungiswa: imishini enengqondo nokulungiswa kuyisihluthulelo sokuthola ukusebenza okuhle kakhulu kokuvala.Lapho sisebenza, ngemva kokugqokwa kwesihlalo sophawu, amandla okulungisa asebenzayo okucindezela okukhethekile okulayishwe ngaphambili aphansi kakhulu, ngakho-ke impilo yesevisi ye-rigid seat seal structure ball valve imfushane.
Enye yezindlela zokubhekana nenkinga ukukhetha isihlalo sokuvala ngezakhi ezinwebekayo.Njengamanje, ukutholwa nokulungiswa kwenani lokuqinisa ngaphambilini akusancikile ku-gasket yokulungiswa kokuvala kodwa kuqedelwa isici esinwebekayo.Ngokungeziwe ekutholeni inani elidingekayo lokuqinisa ngaphambilini, isihlalo sokuvala esinezici ezinwebekayo singaphinda sinxephezele ukucindezela okukhethekile kokuqina ngaphakathi kobubanzi bokuguga bokunwebeka bento enwebekayo.Ngakho-ke, impilo yesevisi ye-valve yebhola yinde kakhulu.
Isihluthulelo sokubekwa uphawu kwamavalvu ebhola ensimbi engagqwali sisekwakhekeni kwesihlalo sokuvala kanye nokukhethwa kwempahla yesihlalo sokuvala.Ngokusho kwesakhiwo esihlukene kanye nezidingo zohlelo lokusebenza, khetha ngokunengqondo indlela yesakhiwo sesihlalo sokuvala ukuze uqinisekise ubuchwepheshe obuhle kakhulu bokucubungula isihlalo sokubeka uphawu: khetha impahla yokuvala enomsebenzi omuhle kakhulu kanye nezidingo zokufaka isicelo esijwayelekile ukuze uhlangabezane nezidingo zokuvala i-valve yebhola futhi uqhubekele phambili. ukwethembeka kanye nokusetshenziswa kokusebenza kwe-valve yebhola Isikhathi sokuphila siwukucatshangelwa okubalulekile ekuhleleni ukuthuthukiswa kwe-valve yebhola.
Isikhathi sokuthumela: Nov-10-2020