Ivalve yebhabhathane , eyaziwa ngokuba yi-valve ye-flap, i-valve elula yokulawula. Kwangaxeshanye, ingasetyenziselwa ukutshintsha ulawulo lwemibhobho yoxinzelelo oluphantsi. Ivalve yebhabhathane ibhekisa kwivalve eyindawo yayo yokuvala (idiski okanye idiskhi) iyidiski kwaye ijikeleza ivalve ukuze ivuleke kwaye ivale. Idlala kakhulu indima yokunqunyulwa kunye ne-throttling kumbhobho. Inxalenye yokuvula kunye nokuvala i-valve ye-butterfly yi-disc-shaped butterfly plate, ejikeleza i-axis yayo kumzimba wevalve, ukuze kufezekiswe injongo yokuvula, ukuvala okanye ukulungiswa. Ivalve yebhabhathane isetyenziswa kwimibhobho ehambisa izinto ezohlukeneyo zolwelo ezidlekayo nezingadlekiyo kwiinkqubo zobunjineli ezifana nejenereyitha, irhasi, irhasi yendalo, irhasi yepetroleum engamanzi, irhasi yasezidolophini, umoya oshushu nobandayo, ukunyibilikiswa kweekhemikhali, ukwenziwa kombane kunye nokhuseleko lokusingqongileyo, kwaye iyasetyenziswa. ukulawula nokunqamla ukuhamba kwemithombo yeendaba.
Ukusetyenziswa kwevalve yebhabhathane
Iivalve zebhabhathane zifanelekile kulawulo lokuhamba. Ekubeni ilahleko yoxinzelelo lwevalve yebhabhathane kumbhobho inkulu ngokwentelekiso, emalunga nokuphinda kathathu kwevalve yesango, xa ukhetha ivalve yebhabhathane, impembelelo yelahleko yoxinzelelo kwinkqubo yombhobho kufuneka iqwalaselwe ngokupheleleyo, kunye nokuqina kombhobho webhabhathane elithwele ipleyiti. uxinzelelo oluphakathi xa uvala kufuneka luqwalaselwe. Ukongeza, umda wokushisa osebenzayo wezinto zokuhlala ezilastiki kwiqondo lokushisa eliphezulu kufuneka uqwalaselwe.
Ivalve yebhabhathane inobude obuncinci besakhiwo kunye nokuphakama ngokubanzi, ukuvulwa okukhawulezayo kunye nesantya sokuvala, kunye neempawu ezilungileyo zokulawula ulwelo. Umgaqo wokwakhiwa kwevalve yebhabhathane yeyona ifanelekileyo ukwenza iivalve ezinobubanzi obukhulu. Xa i-valve butterfly iyadingeka ukulawula ukuhamba, into ebaluleke kakhulu kukukhetha ngokuchanekileyo ubungakanani kunye nohlobo lwevalve yebhabhathane ukuze isebenze ngokufanelekileyo nangempumelelo.
Ngokuqhelekileyo, kwi-throttling, ukulawulwa kunye nokulawula kunye nodaka oluphakathi, ubude obufutshane besakhiwo kunye nokuvulwa ngokukhawuleza kunye nesantya sokuvala (1 / 4R) siyafuneka. Ivalve yokunqunyulwa koxinzelelo oluphantsi (uxinzelelo oluncinci oluhlukileyo), ivalve yebhabhathane iyacetyiswa.
I-valve ye-Butterfly ingasetyenziselwa kwitshaneli kunye nokulawulwa kweendawo ezimbini kunye nentamo, ingxolo ephantsi, i-cavitation kunye ne-gasification, inani elincinci lokuvuza kwi-atmosphere kunye ne-abrasive medium.
Xa ivalve yebhabhathane isetyenziswa phantsi kweemeko ezikhethekileyo zokusebenza, njengommiselo wokugobhoza, ukutywinwa okungqongqo okanye ukunxitywa okunzulu, ubushushu obuphantsi (cryogenic) kunye nezinye iimeko zokusebenza, kuyafuneka ukuba kusetyenziswe ivalve yebhabhathane eccentric okanye ephindwe kabini enentsimbi eyilwe ngokukodwa. isixhobo sokutywina kunye nokulawula.
Ivalve yebhabhathane ephakathiiyasebenza kumanzi amatsha, ugutyulo, amanzi olwandle, amanzi anetyuwa, umphunga, igesi yendalo, ukutya, amayeza, iimveliso ze-oyile, iiasidi ezahlukeneyo kunye nealkali kunye neminye imibhobho efuna ukutywinwa okupheleleyo, ukuvuza kwerhasi eyi-zero, ubomi benkonzo ephezulu kunye nobushushu bokusebenza – 10 ~ 150 ¡e.
Ivalve yebhabhathane ethambileyo etywiniweyo ifanelekile ukuvulwa kweendlela ezimbini, ukuvala kunye nokulungelelaniswa kwe-ventilation kunye nombhobho wokususa uthuli. Isetyenziswa kakhulu kumbhobho wegesi kunye nomjelo wamanzi wesinyithi, ishishini lokukhanya, amandla ombane kunye nenkqubo yepetrochemical.
Intsimbi ukuya kwintsimbi yentsimbi etywinwe kabini eccentric butterfly valveilungele unikezelo lobushushu ezidolophini, unikezelo lomphunga, unikezelo lwamanzi, igesi, i-oyile, i-asidi kunye ne-alkali kunye neminye imibhobho njengezixhobo zokulawula kunye nokuthintela.
Ukongeza ekusetyenzisweni njengevalve yolawulo lwenkqubo yoxinzelelo olukhulu lwe-adsorption swing adsorption (PSA) yegesi yokwahlula iyunithi, isinyithi ukuyaintsimbi etywiniweyo kathathu eccentric butterfly valve ingasetyenziswa ngokubanzi kwi-petroleum, i-petrochemical, ikhemikhali, isinyithi, amandla ombane kunye nezinye iindawo. Yindawo efanelekileyo yevalve yesango kunye nevalve yokumisa
Umgaqo wokukhetha wevalve yebhabhathane
1. Ngenxa yokuba ilahleko yoxinzelelo lwevalve yebhabhathane inkulu kakhulu xa ithelekiswa nevalve yesango, ilungele inkqubo yombhobho eneemfuno zolahleko loxinzelelo lwelax.
2. Ekubeni ivalve yebhabhathane inokulungelelaniswa ngokuhamba, ifanelekile ukukhethwa kumbhobho odinga ukulungiswa kokuhamba.
3. Ngenxa yokuncitshiswa kwesakhiwo sevalve yebhabhathane kunye nezixhobo zokutywina, ayifanelekanga kubushushu obuphezulu kunye nenkqubo yepayipi yoxinzelelo oluphezulu. Ubushushu obuqhelekileyo bokusebenza bungaphantsi kwe-300 ¡æ kwaye uxinzelelo lwegama lungaphantsi kwe-PN40.
4. Ekubeni ivalve yebhabhathane inobude obufutshane besakhiwo kwaye ingenziwa ibe yi-diameter enkulu, kufuneka ikhethwe ngezihlandlo apho ubude besakhiwo bufuneka ukuba bube bufutshane okanye i-valve enkulu ye-diameter (efana ne-DN1000).
5. Ekubeni i-valve ye-butterfly inokuvulwa okanye ivalwe kuphela ngokujikeleza i-90 ¡ã, kuyafaneleka ukuba ukhethe i-valve ye-butterfly kwintsimi ngokuvula ngokukhawuleza kunye neemfuno zokuvala.
Ixesha lokuposa: Jan-13-2022
