Zisebenza njani izivalo zebhabhathane?

Ivalve yebhabhathaneluhlobo lwevalvu esebenzisa idiskhi yokuvula kunye nenxalenye yokuvala ukubuyisela malunga ne-90 ° ukuvula, ukuvala okanye ukulungelelanisa izinga lokuhamba kwendawo. Ivalve yebhabhathane ayinalo nje isakhiwo esilula, ubungakanani obuncinci, ubunzima obuncinci, ukusetyenziswa kwezinto eziphantsi, ubungakanani obuncinci bofakelo, itorque encinci yokuqhuba, ukusebenza okulula kunye nokukhawulezayo, kodwa inomsebenzi wokulawula ukuhamba kakuhle kunye neempawu zokuvala ukutywinwa, kwaye yenye yeentlobo zevalve ezikhula ngokukhawuleza kule minyaka ilishumi idlulileyo. Iivalve zebhabhathane zisetyenziswa kakhulu. Iindidi kunye nobuninzi bokusetyenziswa kwayo ziyaqhubeka nokwandisa, kwaye ziphuhlise ukushisa okuphezulu, uxinzelelo oluphezulu, ububanzi obukhulu, ukuxinwa okuphezulu, ubomi obude, iimpawu ezibalaseleyo zokulawula, kunye nemisebenzi emininzi yevalve enye. Ukuthembeka kwayo kunye nezinye iimpawu zokusebenza zifikelele kwinqanaba eliphezulu.

Ngokusetyenziswa kwerabha yokwenziwa kweekhemikhali kwikhemikhali ukuyaiivalve butterfly, ukusebenza kweiivalve butterflyiphuculwe. Ngenxa yokuba irabha eyenziweyo ineempawu zokuxhathisa umhlwa, ukumelana nokhukuliseko, ukuzinza komda, ukomelela okulungileyo, ukubunjwa lula, ixabiso eliphantsi, njl., irabha yokwenziwa eneempawu ezahlukeneyo inokukhethwa ngokweemfuno ezahlukeneyo zokusetyenziswa ukuhlangabezana neemeko zokusebenzaiivalve butterfly.

Ngenxa yokuba i-polytetrafluoroethylene (PTFE) inokumelana ne-corrosion eyomeleleyo, ukusebenza okuzinzile, akukho lula ukuguga, i-coefficient ephantsi ye-friction, kulula ukuyifaka, ukuzinza kwe-dimensional, kwaye inokuphucula iipropati zayo ezibanzi ngokuzalisa kunye nokongeza izinto ezifanelekileyo, i-butterfly valve yokutywina izinto ezinamandla angcono kunye ne-coefficient ephantsi ye-friction coefficient ingafumaneka, kunye ne-polymer ye-polymer ephantsi. emelwe yi-PTFE kunye nokuzaliswa kwayo okutshintshiweyo kusetyenziswe ngokubanzi kwi-valve yebhabhathane, ukwenzela ukuba ukusebenza kwe-valve butterfly kuphuculwe ngakumbi.Iivalve zebhabhathanengoluhlu olubanzi lwamaqondo obushushu kunye noxinzelelo, ukusebenza okuthembekileyo kokutywinwa kunye nobomi benkonzo obude benziwe.

Ukuze kuhlangatyezwane neemfuno zezicelo zemizi-mveliso ezifana nobushushu obuphezulu nobuphantsi, ukhukuliseko olunamandla, kunye nobomi obude, iivalve zebhabhathane zentsimbi ziye zaphuhliswa kakhulu. Ngokusetyenziswa kokumelana nobushushu obuphezulu, ukuxhathisa ubushushu obuphantsi, ukuxhathisa okuqinileyo, ukuxhathisa okuqinileyo kokhukuliseko, kunye nezixhobo eziphezulu zamandla e-alloy kwiivalvu zebhabhathane, iivalvu zebhabhathane ezitywiniweyo zisetyenzisiwe kwiindawo zoshishino ezifana nobushushu obuphezulu kunye nobushushu obuphantsi, ukhukuliseko olunamandla, kunye nobomi obude, kunye neevalvu zebhabhathane ezinobubanzi obukhulu (9 ~ 750mm), ubushushu obuphezulu (9 ~ 750mm). (-196 ~ 606 ° C) zivele, ukwenzela ukuba iteknoloji ye-butterfly valves ifikelele kwinqanaba elitsha.

Xa ivalve yebhabhathane ivulwe ngokupheleleyo, inokumelana nokuqukuqela okuncinci. Xa ukuvulwa kuphakathi kwe-15 ° ~ 70 °, ingasetyenziselwa ukulawula ukuhamba ngokukhawuleza, ngoko ke ukusetyenziswa kwevalve yebhabhathane kuxhaphake kakhulu kwintsimi yohlengahlengiso olukhulu lobubanzi.

Ngenxa yentshukumo esulekayo yepleyiti yebhabhathane yevalve yebhabhathane, iivalvu ezininzi zebhabhathane zingasetyenziselwa imidiya eneziqina ezimisiweyo. Ngokuxhomekeke kumandla esitywina, ingasetyenziselwa i-powder kunye ne-granular media.

Iivalve zebhabhathane zifanelekile kulawulo lokuhamba. Ngenxa yokuba ilahleko yoxinzelelo lwevalve yebhabhathane kumbhobho inkulu ngokwentelekiso, malunga nokuphindaphinda kathathu kwevalve yesango, xa kukhethwa ivalve yebhabhathane, ifuthe lelahleko yoxinzelelo lwenkqubo yombhobho kufuneka iqwalaselwe ngokupheleleyo, kunye nokomelela kwepleyiti yebhabhathane ukuthwala uxinzelelo lombhobho ophakathi xa uvaliwe nawo kufuneka kuqwalaselwe. Ukongezelela, ukulinganiselwa kweqondo lokushisa lokusebenza apho izinto zokuhlala ze-elastomeric zinokuthi zifakwe kumaqondo aphezulu aphezulu kufuneka zithathelwe ingqalelo.

Ivalve yebhabhathane inobude obuncinci bokwakha kunye nokuphakama ngokubanzi, isantya sokuvula nokuvala ngokukhawuleza, kunye neempawu ezilungileyo zokulawula ulwelo. Umgaqo wokwakhiwa kweevalve zebhabhathane yeyona nto ifanelekileyo ukwenza iivalve ezinkulu. Xa ivalve yebhabhathane kufuneka isetyenziswe ukulawula izinga lokuhamba, kubalulekile ukukhetha ubungakanani obuchanekileyo kunye nohlobo lwevalve yebhabhathane ukuze isebenze ngokufanelekileyo nangempumelelo.

Ngokuqhelekileyo, kwi-throttling, ukulawulwa kokulawulwa kunye nodaka oluphakathi, ubude besakhiwo bufutshane, isantya sokuvula kunye nokuvala ngokukhawuleza, kunye nokunqunyulwa kwengcinezelo ephantsi (umahluko omncinci woxinzelelo) kuyadingeka, kwaye i-valve butterfly iyanconywa. Iivalve ze-Butterfly zingasetyenziselwa xa kukho ukulungiswa kweendawo ezimbini, umjelo oncitshisiweyo we-diameter, ingxolo ephantsi, i-cavitation kunye ne-vaporization, inani elincinci lokuvuza kwi-atmosphere, kunye ne-media abrasive. Ngaphantsi kweemeko ezikhethekileyo zokusebenza, ukulungiswa kwe-throttling, okanye ukutywinwa okungqongqo, ukunxiba okunzulu, ukushisa okuphantsi (cryogenic) kunye nezinye iimeko zokusebenza.