Ngokomsebenzi kunye nokusetyenziswa kweivalve yesangokwayeivelufa butterfly, ivalve yesango inokumelana nokuhamba okuncinci kunye nokusebenza kakuhle kokutywinwa.Ngenxa yokuba icala lokuhamba kwepleyiti yevalvu yesango kunye nendawo ephakathi ikwi-engile ethe nkqo, ukuba ivalve yesango ayitshintshwanga endaweni yayo kwipleyiti yevalvu, ukukhuhla okuphakathi kwipleyiti yevalve kuya kwenza ipleyiti yevalve ingcangcazele., Kulula ukulimaza isitywina se-valve yesango.
Ivalve yebhabhathane, ekwaziwa njengeivalve yeflap, luhlobo lwevalve yokulawula enesakhiwo esilula.Ivalve yebhabhathane enokusetyenziswa kulawulo oluvaliweyo lwemibhobho yoxinzelelo olusezantsi ithetha ukuba ilungu elivalayo (idiskhi okanye ipleyiti yebhabhathane) yidiski, ejikeleza ishafti yevalve ukufikelela ukuvuleka nokuvala.Ivalve enokusetyenziswa ukulawula ukuhamba kweentlobo ngeentlobo zolwelo olunjengomoya, amanzi, umphunga, imidiya eyahlukeneyo eyonakalisayo, udaka, i-oyile, isinyithi esilulwelo kunye nemidiya yeradioactive.Ngokukodwa idlala indima yokusika kunye ne-throttling kwipayipi.Ivalve yebhabhathane evula kunye nenxalenye yokuvala yiipleyiti yebhabhathane emilise idiskhi, ejikeleza i-axis yayo kumzimba we-valve ukufezekisa injongo yokuvula nokuvala okanye ukulungiswa.
Ipleyiti yebhabhathane iqhutywa sisikhondo sevalve.Ukuba ijika i-90 °, inokugqiba ukuvula kunye nokuvala enye.Ngokutshintsha i-angle ye-deflection ye-disc, ukuhamba kwe-medium kunokulawulwa.
Iimeko zokusebenza kunye nephakathi: Ivalve yebhabhathane ilungele ukuhambisa ulwelo olwahlukeneyo oludlayo kunye olungadlekiyo kwiinkqubo zobunjineli ezinjengomvelisi, irhasi yamalahle, igesi yendalo, igesi yepetroleum elulwelo, igesi yesixeko, umoya oshushu nobandayo, ukunyibilikiswa kweekhemikhali kunye nokukhusela umbane wokusingqongileyo. , isakhiwounikezelo lwamanzi kunye nokuhanjiswa kwamanzi, njl. Kwipayipi ye-medium, isetyenziselwa ukulungelelanisa kunye nokunqumla ukuhamba kwe-medium.
Iivalve yesangoisango lokuvula kunye nokuvala, indlela yokuhamba yesango i-perpendicular ukuya kwicala le-fluid, kwaye i-valve yesango inokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo.Ukuphucula ukuveliswa kwayo kunye nokwenza ukuphambuka kwe-angle yomhlaba wokutywina ngexesha lokucubungula, eli sango libizwa ngokuba yisango eli-elastic.
Xa ivalve yesango ivaliwe, umphezulu wokutywina unokuxhomekeka kuphela kuxinzelelo oluphakathi ukutywinwa, oko kukuthi, ukuxhomekeka kuphela kuxinzelelo oluphakathi ukucinezela indawo yokutywina yesango ukuya kwisihlalo sevalve kwelinye icala ukuqinisekisa ukutywinwa kwe-valve yesango. umphezulu wokutywina, onokuzitywina.Uninzi lweevalvu zesango zitywinwe ngenkani, oko kukuthi, xa ivalve ivaliwe, isango kufuneka linyanzeliswe ngokuchasene nesihlalo sevalve ngamandla angaphandle ukuze kuqinisekiswe ukuqina kwendawo yokutywina.
Imo yentshukumo: Isango levalve yesango lihamba ngendlela ethe tye kunye nesiqu sevalve, ekwabizwa ngokuba yi-aivalve yesango lesiqu esinyukayo.Ngokuqhelekileyo, kukho imicu ye-trapezoidal kwintonga yokunyusa.Ngokusebenzisa i-nut phezulu kwevalve kunye ne-groove yesikhokelo kumzimba wevalve, intshukumo ejikelezayo iguqulwa ibe yintshukumo yomgca, oko kukuthi, i-torque yokusebenza iguqulwa ibe yi-thrust yokusebenza.Xa i-valve ivuliwe, xa ukuphakama kwesango lilingana no-1: 1 amaxesha ububanzi be-valve, umzila we-fluid awuthinteki ngokupheleleyo, kodwa esi sikhundla asikwazi ukubeka iliso ngexesha lokusebenza.Ekusetyenzisweni kwangempela, i-apex ye-valve stem isetyenziswe njengophawu, oko kukuthi, indawo apho ayikwazi ukuvulwa, njengendawo yayo evulekile ngokupheleleyo.Ukuze kuthathelwe ingqalelo into yokuvala i-lock-up ebangelwa ukutshintsha kweqondo lokushisa, ngokuqhelekileyo ivulwa kwindawo ephezulu, kwaye emva koko ibuyele kwi-1 / 2-1 ukujika, njengesigxina se-valve evulekile ngokupheleleyo.Ngoko ke, indawo evulekile ngokupheleleyo yevalve imiselwe ngokwendawo yesango (oko kukuthi i-stroke).Ezinye iintonga zevalve yesango zibekwe kwisango, kwaye ukujikeleza kwesondo lesandla kuqhuba isiqu sevalve ukuba sijikeleze, kwaye isango liphakanyiswe.Olu hlobo lwevalve lubizwa ngokubaIvalve yesango elijikelezayo or ivalve yesango elifihliweyo.
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