Butterfly valve , eyaziwa nangokuthi i-flap valve, i-valve elula yokulawula. Ngesikhathi esifanayo, ingasetshenziswa futhi ekushintsheni ukulawulwa kwe-low-pressure medium. I-Butterfly valve ibhekisela ku-valve ingxenye yayo yokuvala (idiski noma idiski) iyidiski futhi izungeza i-valve shaft ukuze ivuleke futhi ivale. Idlala kakhulu indima yokusika kanye nokunyakazisa epayipini. Ingxenye yokuvula neyokuvala ye-butterfly valve iyipuleti levemvane elimise okwe-disc, elizungeza i-axis yalo emzimbeni we-valve, ukuze kuzuzwe injongo yokuvula, ukuvala noma ukulungisa. I-Butterfly valve isebenza kumapayipi adlulisa imidiya ehlukahlukene ebolayo nengagqwali ezinhlelweni zobunjiniyela ezifana nejeneretha, igesi, igesi yemvelo, igesi ewuketshezi kaphethiloli, igesi yasemadolobheni, umoya oshisayo nobandayo, ukuncibilika kwamakhemikhali, ukuphehlwa kukagesi nokuvikelwa kwemvelo, futhi iyasetshenziswa. ukulawula nokunqamula ukuhamba kwemidiya.
Ukusetshenziswa kwe-valve ye-butterfly
Ama-valve e-butterfly afanele ukulawulwa kokugeleza. Njengoba umfutho we-valve uvemvane epayipini mkhulu uma kuqhathaniswa, ocishe uphindwe kathathu kune-valve yesango, lapho kukhethwa i-valve uvemvane, ithonya lokulahlekelwa kwengcindezi ohlelweni lwamapayipi kufanele libhekwe ngokugcwele, kanye nokuqina kwepayipi eliphethe ipuleti uvemvane. ukucindezela okuphakathi lapho uvala kufanele kucatshangelwe. Ngaphezu kwalokho, umkhawulo wokushisa osebenzayo wezinto zokuhlala ezinwebekayo ekushiseni okuphezulu kufanele ucatshangelwe.
I-valve yovemvane inobude obuncane besakhiwo nobude bayo yonke, isivinini sokuvula nokuvala ngokushesha, nezici ezinhle zokulawula uketshezi. Isimiso sesakhiwo se-valve ye-butterfly ifaneleka kakhulu ekwenzeni ama-valve amakhulu. Lapho i-valve ye-butterfly idingeka ukulawula ukugeleza, into ebaluleke kakhulu ukukhetha kahle ubukhulu kanye nohlobo lwe-butterfly valve ukuze lusebenze kahle nangempumelelo.
Ngokuvamile, ku-throttling, ukulawulwa nokulawula kanye nodaka oluphakathi, ubude besakhiwo esifushane kanye nokuvula okusheshayo nokuvala isivinini (1 / 4R) kuyadingeka. I-valve yokusika ingcindezi ephansi (ingcindezi encane yokuhlukanisa), i-valve uvemvane iyanconywa.
I-valve ye-Butterfly ingasetshenziswa esiteshini ngokulawulwa kwesikhundla esiphindwe kabili kanye ne-necking, umsindo ophansi, i-cavitation kanye ne-gasification, inani elincane lokuvuza emkhathini kanye ne-abrasive medium.
Lapho i-valve uvemvane isetshenziswa ngaphansi kwezimo ezikhethekile zokusebenza, ezifana throttling regulation, uphawu ngokuqinile noma ukugqokwa okungathi sína, izinga lokushisa eliphansi (cryogenic) kanye nezinye izimo zokusebenza, kubalulekile ukusebenzisa ekhethekile ezintathu eccentric noma double eccentric uvemvane valve ngensimbi yakhelwe ngokukhethekile. umshini wokuvala nokulawula.
Ivalve uvemvane ophakathi nendawosisebenza emanzini ahlanzekile, indle, amanzi olwandle, amanzi anosawoti, umusi, igesi yemvelo, ukudla, imithi, imikhiqizo kawoyela, i-asidi ehlukahlukene kanye ne-alkali namanye amapayipi adinga ukuvalwa ngokuphelele, ukuvuza kwegesi yokuhlola i-zero, impilo yesevisi ephezulu kanye nezinga lokushisa lokusebenza - 10 ~ 150 ¡e.
Ivalve uvemvane oluthambile uphawu oluthambile ilungele ukuvulwa okubili, ukuvala nokulungiswa kwepayipi lokungena komoya kanye nokukhipha uthuli. Isetshenziswa kabanzi epayipini legesi kanye nesiteshi samanzi se-metallurgy, imboni yokukhanya, amandla kagesi kanye nohlelo lwe-petrochemical.
Intambo yensimbi iye kweyensimbi evalwe kabili ivalve uvemvane ene-eccentricilungele ukuhlinzekwa kokushisa kwasemadolobheni, ukuhlinzekwa kwesitimu, ukuhlinzekwa kwamanzi, igesi, uwoyela, i-asidi ne-alkali namanye amapayipi njengamadivayisi alawulayo kanye nokunqanda.
Ngaphezu kokusetshenziswa njenge-valve yokulawula uhlelo lweyunithi yokuhlukanisa igesi yokucindezela okukhulu (PSA), insimbimetal evalwe kathathu uvemvane eccentric valve ingasetshenziswa kabanzi ku-petroleum, i-petrochemical, amakhemikhali, i-metallurgy, amandla kagesi neminye imikhakha. Ingena esikhundleni esihle se-valve yesango kanye ne-valve yokumisa
Umgomo wokukhetha we-butterfly valve
1. Ngenxa yokuthi umfutho we-valve uvemvane mkhulu kakhulu uma uqhathaniswa ne-valve yesango, ilungele uhlelo lwepayipi elinezidingo zokulahlekelwa kwengcindezi exegezelayo.
2. Njengoba i-valve uvemvane ingalungiswa ngokugeleza, ilungele ukukhethwa epayipini elidinga ukulungiswa kokugeleza.
3. Ngenxa yomkhawulo wesakhiwo se-butterfly valve kanye nezinto zokuvala uphawu, ayifanele izinga lokushisa eliphezulu kanye nesistimu yamapayipi okucindezela okukhulu. Izinga lokushisa elijwayelekile lokusebenza lingaphansi kuka-300 ¡æ futhi ukucindezela okujwayelekile kungaphansi kwe-PN40.
4. Njengoba i-valve yovemvane inobude obufushane besakhiwo futhi ingenziwa ibe ububanzi obukhulu, kufanele ikhethwe ngezikhathi lapho ubude besakhiwo budingeka ukuthi bube bufushane noma ama-diameter amakhulu (njengangenhla kwe-DN1000).
5. Njengoba i-valve ye-butterfly ingavulwa noma ivalwe kuphela ngokuzungeza i-90 ¡ã, kufanelekile ukukhetha i-valve ye-butterfly ensimini ngezidingo zokuvula nokuvala ngokushesha.
Isikhathi sokuthumela: Jan-13-2022
