Ukwethulwa kwe-butterfly valve

I-Butterfly valve, eyaziwa nangokuthi i-flap valve, i-valve elula yokulawula, engase isetshenziselwe ukulawula lapho ucisha umshini wephayiphi onengcindezi ephansi. I-Butterfly valve iwuhlobo lwevalvu ingxenye yalo yokuvala (idiski noma ipuleti uvemvane) iyidiski futhi izungeza i-axis yevalvu ukuze ivuleke futhi ivale. Idlala kakhulu indima yokusika nokunyakazisa epayipini. Ingxenye yokuvula neyokuvala ye-butterfly valve iyipuleti levemvane elimise okwe-disc, elizungeza i-axis yalo emzimbeni we-valve, ukuze kuzuzwe injongo yokuvula nokuvala noma ukulungisa. I-Butterfly valve iyasebenza epayipini elidlulisa uketshezi oluhlukahlukene olubolayo nolungagqwali ohlelweni lobunjiniyela lwejeneretha, igesi, igesi yemvelo, igesi ye-petroleum ewuketshezi, igesi yedolobha, umoya obandayo noshisayo, ukuncibilika kwamakhemikhali, ukuphehlwa kukagesi nokuvikelwa kwemvelo. Isetshenziselwa ukulawula nokunqamula ukugeleza kwe-medium. Ukusetshenziswa kwe-valve uvemvane Ivalve ye-Butterfly ilungele ukulawula ukugeleza. Njengoba ukuncipha komfutho we-valve uvemvane epayipini kukhulu uma kuqhathaniswa, okucishe kuphindwe kathathu kunalelo le-valve yesango, lapho kukhethwa i-valve uvemvane, umthelela wokulahlekelwa kwengcindezi ohlelweni lwamapayipi kufanele ucatshangelwe ngokugcwele, nokuqina kwepayipi eliphethe ipuleti uvemvane. ukucindezela okuphakathi lapho uvala kufanele kucatshangelwe. Ukwengeza, umkhawulo wokushisa osebenzayo wezinto zokuhlala eziqinile ezingeni lokushisa eliphezulu kufanele ucatshangelwe. I-valve yovemvane inezinzuzo zobude besakhiwo esincane nokuphakama okuphelele, isivinini sokuvula nokuvala ngokushesha, nezici ezinhle zokulawula uketshezi. Isimiso se-butterfly valve sifaneleka kakhulu ekwenzeni i-valve enkulu yobubanzi. Lapho i-valve ye-butterfly idingeka ukulawula ukugeleza, into ebaluleke kakhulu ukukhetha usayizi nohlobo lwe-valve butterfly ngendlela efanele nangempumelelo. Imvamisa, ku-throttling, ukulawula okulawula kanye nodaka, ubude besakhiwo esifushane kanye nesivinini sokuvula nokuvala (1 / 4R) siyadingeka. I-low pressure cut-off (umehluko ophansi wengcindezi), i-valve uvemvane iyanconywa. I-valve ye-Butterfly ingasetshenziswa ekulungiseni isikhundla esiphindwe kabili, isiteshi se-necking, umsindo ophansi, i-cavitation kanye ne-gasification, inani elincane lokuvuza emkhathini kanye ne-abrasive medium. Lapho usebenzisa i-valve ye-butterfly ngaphansi kwezimo ezikhethekile zokusebenza, njengokulawulwa kokudonsa, imfuneko eqinile yokuvala, ukuguga okuqinile, izinga lokushisa eliphansi (cryogenic), njll., i-valve ekhethekile ye-tri eccentric noma i-Bi eccentric butterfly enedivayisi ekhethekile eklanyelwe yokuvala insimbi iyadingeka. I-valve butterfly ephakathi nendawo ifanele amanzi ahlanzekile, indle, amanzi olwandle, i-brine, umusi, igesi yemvelo, ukudla, imithi, uwoyela, ama-asidi ahlukahlukene nezisekelo namanye amapayipi adinga ukuvalwa okuphelele, ukuvuza kwe-zero ekuhlolweni kwegesi, impilo yesevisi ephezulu. kanye nezinga lokushisa lokusebenza - 10 ~ 150 ℃. Ivalve uvemvane oluthambile uphawu oluthambile lufanele ukuvuleka nokuvala okukabili futhi kulungiswe umoya kanye nepayipi lokususa uthuli. Isetshenziswa kabanzi epayipini legesi kanye nesiteshi samanzi se-metallurgy, imboni yokukhanya, amandla kagesi kanye nohlelo lwe-petrochemical. I-Metal to metal wire evalwe kabili i-eccentric butterfly valve ilungele ukushisisa kwasemadolobheni, ukuhlinzekwa kwesitimu, ukuhlinzekwa kwamanzi negesi, uwoyela, i-asidi kanye namapayipi e-alkali, njengamathuluzi okulawula nokunqanda. I-Metal kuya kwensimbi ubuso evalwe kathathu i-eccentric butterfly valve ingasetshenziswa kabanzi ku-petroleum, i-petrochemical, amakhemikhali, i-metallurgy, amandla kagesi neminye imikhakha ngaphandle kokusetshenziswa njenge-valve yokulawula uhlelo lweyunithi enkulu yokuhlukanisa igesi ye-PSA. Ingena esikhundleni esihle se-valve yesango kanye ne-valve yokumisa. Isimiso sokukhetha i-valve uvemvane 1. Uma kuqhathaniswa ne-valve yesango, i-valve uvemvane inokuncipha kwengcindezi enkulu, ngakho ifaneleka ohlelweni lwepayipi elinezidingo zokulahlekelwa kwe-lax pressure 2. Njengoba i-valve uvemvane ingasetshenziselwa ukulawula ukugeleza, ifaneleka ukukhethwa. epayipini elidinga ukulawulwa kokugeleza 3. Ngenxa yomkhawulo wesakhiwo sevalve uvemvane nezinto zokuvala, ayifanele izinga lokushisa eliphezulu kanye nesistimu yamapayipi okucindezela okukhulu. Ngokuvamile, izinga lokushisa lokusebenza lingaphansi kuka-300 ℃ futhi ukucindezela okujwayelekile kungaphansi kwe-PN40. 4. Ngenxa yokuthi ubude besakhiwo se-butterfly valve bufushane, futhi bungenziwa ububanzi obukhulu, ngakho-ke esimweni sezidingo zesakhiwo esifushane noma i-valve enkulu yobubanzi (njenge-DN 1000), i-valve yevemvane kufanele ikhethwe. 5. Ngenxa yokuthi i-valve ye-butterfly ingavulwa noma ivalwe kuphela ngokujikeleza kwe-90 °, kufanelekile ukusebenzisa i-butterfly valve ensimini lapho izidingo zokuvula nokuvala zishesha.