umgaqo wokusebenza
A ivelufa butterflyluhlobo lwevalvu elungelelanisa ukuhamba okuphakathi ngokuyivula okanye ukuyivala ngokujika umva naphambili malunga nama-90 degrees. Ukongeza kuyilo lwayo oluthe ngqo, ubungakanani obuncinci, ubunzima obulula, ukusetyenziswa kwezinto eziphantsi, ukufakwa lula, i-torque ephantsi yokuqhuba, kunye nokusebenza ngokukhawuleza,ivelufa butterflyIkwasebenza kakuhle ngokwemigaqo yolawulo lokuhamba ngelixa ikwaneempawu ezintle zokuvala nokutywina. enye yeentlobo ezikhawulezayo zevalve. Ukusetyenziswa kweiivalve butterflyixhaphakile.

Ukusetyenziswa kwayo kuyaqhubeka nokuhlukahluka kunye nokwanda, kwaye batshintshela kwiqondo lokushisa eliphezulu, uxinzelelo oluphezulu, ububanzi obukhulu, ukutywinwa okuphezulu, ubomi obude, iimpawu ezibalaseleyo zokulungelelanisa, kunye nemisebenzi emininzi yevalve. Ngoku inomgangatho ophezulu wokuthembeka kunye nezinye iimpawu zokusebenza.

Ukusebenza kweevalvu zebhabhathane kuye kwaphucuka ngenxa yokusetyenziswa kwerabha yokwenziwa kwekhemikhali. Ekubeni irabha yokwenziwa ineempawu zokumelana nokugqwala, ukuxhathisa ukhukuliseko, ubungakanani obuzinzile, ukomelela okulungileyo, ukulula ukwenza, kunye neendleko eziphantsi, irabha yokwenziwa eneepropati ezahlukeneyo inokukhethwa ngokuhambelana neemfuno ezahlukeneyo zesicelo ukwanelisa iimeko zokusebenza kweevalve zebhabhathane.

Ekubeni i-polytetrafluoroethylene (PTFE) inokuchasana okunamandla kwi-corrosion, ukusebenza okuzinzile, ukuchasana nokuguga, i-coefficient ephantsi ye-friction, ukukhululeka kokubunjwa, kunye nokuzinza kobukhulu, ukusebenza kwayo ngokubanzi kunokuphuculwa ngokuzaliswa kunye nokongeza izinto ezifanelekileyo zokufumana amandla angcono kunye ingxabano. Irabha esetyenzisiweyo inezithintelo ezithile, kodwa izixhobo zokutywina ivalve yebhabhathane ezinomlinganiso osezantsi ziyazijikeleza. Ukuze kuphuculwe ukusebenza kweevalve ze-butterfly, izinto eziphezulu ze-polymer ze-molecular, ezifana ne-polytetrafluoroethylene, kunye nokuzaliswa kwazo izinto eziguquliweyo zisetyenziswe ngokubanzi. Ngoku iphuculwe, kwaye ivalve yebhabhathane iye yaveliswa ngobushushu obukhulu kunye noluhlu loxinzelelo, ukusebenza ngokutywinwa okuthembekileyo, kunye nobomi obude obuluncedo.

Iivalvu zebhabhathane ezitywinwe ngesinyithi zihambele phambili kakhulu ukuze zifezekise iimfuno zemizi-mveliso ezifana nobushushu obuphezulu kunye nobushushu obuphantsi, ukhukuliseko olunamandla, kunye nobomi obandisiweyo. Iivalve zebhabhathane ezitywinwe ngentsimbi zisetyenziswe kakhulu kwiindawo zoshishino ezinje ngamaqondo obushushu aphezulu naphantsi, ukhukuliseko olunamandla, kunye nobomi obude ngenxa yokusetyenziswa kokumelana nobushushu obuphezulu, ukumelana nobushushu obuphantsi, ukuxhathisa okuqinileyo kwe-corrosion, ukumelana nokukhukuliseka okuqinileyo, kunye nokuqina okuphezulu. izixhobo ze-alloy. Ukwenzela ukuqhubela phambili itekhnoloji yevalvu yebhabhathane, idiameter enkulu (9-750mm), uxinzelelo oluphezulu (42.0MPa), kunye noluhlu olubanzi lobushushu (-196–606°C) iivalve zebhabhathane zaqala zavela.

Ivalve yebhabhathane inoxhathiso oluncinci lokuhamba xa ivulwe ngokupheleleyo. Iivalvu zebhabhathane zisetyenziswa rhoqo kwinkalo yolawulo lwedayamitha enkulu kuba ziyakwazi ukulawula ukuqukuqela okuethe-ethe kwimingxuma ephakathi kwe-15° kunye ne-70°.

Uninzi lweevalvu zebhabhathane zingasetyenziswa kumajelo eendaba aqulathe amasuntswana aqinileyo njengoko ipleyiti yebhabhathane ihamba ngentshukumo yosula. Isenokusetyenziswa kwimidiya yegranular kunye nomgubo, ngokuxhomekeke kumandla wetywina.

Izivalo zebhabhathane ziluncedo kulawulo lokuhamba. Xa ukhetha ivalve yebhabhathane, kubalulekile ukuqwalasela ngokupheleleyo ifuthe lelahleko yoxinzelelo kwinkqubo yombhobho kwakunye namandla epleyiti yebhabhathane ukumelana noxinzelelo lwemibhobho ephakathi xa ivaliwe ngenxa yokuba ilahleko yoxinzelelo lwebhabhathane ivalve kumbhobho inkulu ngokwentelekiso, ngokuqikelelwa ngokuphindwe kathathu kunevave yesango. Ubushushu obusebenzayo bezinto zokuhlala ezilastiki kumaqondo obushushu aphezulu kufuneka nawo athathelwe ingqalelo.

Ivalve yebhabhathane inesakhiwo esifutshane kunye nobude obuphantsi. Ivula kwaye ivale ngokukhawuleza kwaye ineempawu ezilungileyo zokulawula ulwelo. Ukwenza iivalvu ezinobubanzi obukhulu yeyona nto ifanelekileyo kuyilo lwesakhiwo sevalve yebhabhathane. Inyathelo elibaluleke kakhulu ekukhetheni ivalve yebhabhathane eya kusebenza ngokufanelekileyo nangempumelelo xa isetyenziselwa ukulawula ukuhamba kukukhetha uhlobo oluchanekileyo kunye neenkcukacha.

Iivalvu zebhabhathane ziqhele ukucetyiswa ukuba zisetyenziswe ekujuleni, ukulawula, kunye nemidiya yodaka apho ubude obufutshane besakhiwo, ukuvulwa okukhawulezayo kunye nesantya sokuvala, kunye nokunqunyulwa koxinzelelo oluphantsi (umahluko omncinci woxinzelelo) uyafuneka. Iivalve ze-Butterfly zingasetyenziselwa i-media e-abrasive, iziteshi ezincitshisiweyo ze-diameter, ingxolo ephantsi, i-cavitation kunye ne-vaporization, inani elincinci lokuvuza kwe-atmospheric, kunye nohlengahlengiso oluphindwe kabini. Uhlengahlengiso lwe-Trottle xa usebenza phantsi kweemeko ezingaqhelekanga, njengaxa utywinwa ngokuqinileyo, ukunxiba okugqithisileyo, amaqondo obushushu aphantsi kakhulu, njalo njalo.