Imigaqo yokukhetha kunye nezihlandlo ezisebenzayo zeevalve zebhabhathane

1. Apho ivalve yebhabhathane isebenzayo

Iivalve zebhabhathanezifanelekile kulawulo lokuhamba.Ekubeni ilahleko yoxinzelelo lwevalve yebhabhathane kumbhobho inkulu ngokwentelekiso, imalunga nokuphinda kathathu kwevalve yesango.Ngoko ke, xa ukhetha i-valve butterfly, impembelelo yokulahlekelwa koxinzelelo lwenkqubo yombhobho kufuneka iqwalaselwe ngokupheleleyo, kwaye amandla e-butterfly plate ukumelana noxinzelelo lwemibhobho yombhobho kufuneka ithathelwe ingqalelo xa ivaliwe.ngesondo.Ukongeza, kuyafuneka ukuba kuthathelwe ingqalelo umda wobushushu obusebenzayo ukuba isitulo se-valve elastic inokumelana namaqondo obushushu aphezulu.

Ubude besakhiwo kunye nokuphakama ngokubanzi kwevalve yebhabhathane zincinci, isantya sokuvula kunye nokuvala sikhawuleza, kwaye sineempawu 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, ulawulo olulawulayo kunye nodaka oluphakathi, ubude besakhiwo bufuneka ukuba bufutshane kwaye isantya sokuvula kunye nokuvala ngokukhawuleza (1/4r).Ukunqunyulwa koxinzelelo oluphantsi (umahluko omncinci woxinzelelo), ivalve yebhabhathane iyacetyiswa.

Kwimeko yokulungiswa kweendawo ezimbini, i-passage encinci, ingxolo ephantsi, i-cavitation kunye ne-vaporization, inani elincinci lokuvuza kwi-atmosphere, kunye ne-media abrasive, i-valve butterfly ingasetyenziswa.

Xa usebenzisa iivalve zebhabhathane phantsi kweemeko ezikhethekileyo ezifana nommiselo wokugobhoza, iimfuno ezingqongqo zokutywinwa, ukunxiba okuqatha, ubushushu obuphantsi (cryogenic) kunye nezinye iimeko zokusebenza, uyilo olukhethekileyo lwe-eccentric eccentric ephindwe kabini okanye i-eccentricity ephindwe kabini enetywina eyilwe ngokukodwa yentsimbi enesixhobo sohlengahlengiso iyafuneka Ibhabhathane. ivalve.

Ivalve yebhabhathane ephakathi ilungele amanzi amatsha, ugutyulo, amanzi olwandle, amanzi etyuwa, umphunga, igesi yendalo, ukutya, amayeza, ioyile kunye neemveliso ezahlukeneyo ezifuna ukutywinwa okupheleleyo, ukuvuza kovavanyo lwegesi yero, iimfuno eziphakamileyo zobomi, kunye nobushushu bokusebenza. -10 ~ 150℃.Isiseko se-Acid kunye neminye imibhobho.

Ivalve yebhabhathane etywiniweyo etywiniweyo ilungele indlela ezimbini zokuvula kunye nokuvala kunye nohlengahlengiso lwemibhobho yokuphuma komoya kunye nokususa uthuli.Isetyenziswa kakhulu kwimibhobho yegesi kunye neendlela zamanzi kwi-metallurgy, ishishini lokukhanya, amandla ombane, kunye neenkqubo zepetrochemical.

Ivalve yebhabhathane yentsimbi ukuya kwentsimbi eccentric ilungele ukufudumeza ezidolophini, umphunga, amanzi kunye negesi, i-oyile, iasidi kunye nemibhobho yealkali, njengesixhobo sokulawula kunye nokuthintela.

Ukongeza ekusetyenzisweni njengesixhobo sokulawula i-valve yesixhobo sokwahlulwa kwegesi njengesixhobo esikhulu soxinzelelo lwe-swing swing (PSA), ivalve yentsimbi ukuya kwintsimbi yomphezulu itywina kathathu eccentric ingasetyenziswa ngokubanzi kwipetroleum, kwipetroleum, kwikhemikhali, kwimichiza, kwisinyithi, kumbane. amandla kunye namanye amabala.Yivalve yesango, ivalve yokumisa, njl njl.

2.Umgaqo wokukhetha wevalve yebhabhathane

1. Ekubeni ivalve yebhabhathane inelahleko enkulu yoxinzelelo xa kuthelekiswa nevalve yesango, ifanelekile kwiinkqubo zombhobho ezineemfuno zokulahleka koxinzelelo oluncinci.

2. Ekubeni i-valve ye-butterfly ingasetyenziselwa ukulungiswa kokuhamba, ifanelekile ukusetyenziswa kwimibhobho efuna ukulungiswa kokuhamba.

3. Ngenxa yokukhawulelana kwesakhiwo se-butterfly valve kunye nezinto zokutywinwa, akufanelekanga kubushushu obuphezulu kunye nenkqubo yepayipi yoxinzelelo oluphezulu.Ngokubanzi, ubushushu bokusebenza bungaphantsi kwe-300 ℃, kwaye uxinzelelo lwegama lungaphantsi kwe-PN40.

4. Ekubeni ubude besakhiwo sevalve yebhabhathane bufutshane kwaye bunokwenziwa kwidayamitha enkulu, ivalve yebhabhathane kufuneka isetyenziswe kwiimeko apho ubude besakhiwo kufuneka bube bufutshane okanye ivalve yedayamitha enkulu (efana neDN1000). okanye ngaphezulu).

5. Ekubeni i-valve ye-butterfly inokuvulwa okanye ivalwe ngokujikeleza kuphela i-90 °, kungcono ukhethe i-valve butterfly kwiimeko ezifuna ukuvulwa nokuvala ngokukhawuleza.