Ivalve yesango kwayeivelufa butterfly zombini zidlala indima yokutshintsha kunye nokulawula ukuhamba kokusetyenziswa kwemibhobho. Ewe kunjalo, kusekho indlela ekukhetheni ivalve yebhabhathane kunye nevalve yesango. Ukuze kuncitshiswe ubunzulu bokugqunywa komhlaba wombhobho kuthungelwano lonikezelo lwamanzi, imibhobho emikhulu ngokubanzi edayamitha ngokubanzi ixhotyiswe ngeevalvu zebhabhathane, ezinefuthe elincinane kubunzulu bogqumethelo bomhlaba, kwaye zizame ukukhetha izivalo zesango.
Yintoni umahluko phakathi kwevalve yebhabhathane kunye nevalve yesango?
Ngokomsebenzi kunye nokusetyenziswa kwevalve yesango kunye ne-butterfly valve, ivalve yesango inokumelana nokuhamba okuncinci kunye nokusebenza kakuhle kokutywinwa. Ngenxa yokuba icala lokuhamba kwepleyiti yevalve 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 ngokuba yivalve yeflap, luhlobo lwevalve yokulawula enesakhiwo esilula. Ivalve yebhabhathane enokusetyenziswa kulawulo oluvaliweyo lwemibhobho yoxinzelelo oluphantsi ithetha ukuba ilungu elivalayo (idiski 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 yokuvula kunye nenxalenye yokuvala yipleyiti yebhabhathane efana nedisc, ejikeleza i-axis yayo kumzimba wevalvu ukufezekisa injongo yokuvula nokuvala okanye uhlengahlengiso. Ipleyiti yebhabhathane iqhutywa sisikhondo sevalve. Ukuba ugqiba 90°, inokugqiba ukuvula 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 ezifana nomvelisi, irhasi yamalahle, igesi yendalo, igesi yepetroleum elulwelo, igesi yesixeko, umoya oshushu nobandayo, ukunyibilikiswa kweekhemikhali kunye nokukhusela umbane wokusingqongileyo. , ukwakhiwa kwamanzi kunye nokukhutshwa kwamanzi, njl. Kwimibhobho ye-medium, isetyenziselwa ukulungelelanisa kunye nokunqumla ukuhamba kwe-medium.
Ivalve yesango inesango lelungu lokuvula kunye nokuvala, indlela yokuhamba yesango i-perpendicular ukuya kwicala le-fluid, kwaye i-valve yesango inokuvulwa ngokupheleleyo kwaye ivalwe ngokupheleleyo. Ukuphucula ukwenziwa kwayoor amandla kunye nokwenza ukutenxa kwi-engile yomphezulu wokutywina ngexesha lokucubungula, eli sango libizwa ngokuba yisango elilastiki.
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. umphezulu wokutywina, onokuzitywina. Uninzi lwee-valve zesango zitywinwe ngenkani, oko kukuthi, xa i-valve ivaliwe, isango kufuneka linyanzeliswe ngokuchasene nesihlalo sevalve ngamandla angaphandle ukuze kuqinisekiswe ukuqina kwendawo yokutywina.
Imo yokushukuma: Isango levalve yesango lihamba ngendlela ethe tye kunye nesiqu sevalve, ekwabizwa ngokubaOS&Y ivalve yesango. 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 ngenxa yokutshintsha kweqondo lokushisa, ngokuqhelekileyo ivulwa kwindawo ephezulu, kwaye emva koko ibuyele kwi-1 / 2-1 ukujika, njengesigxina se-valve evulekile ngokupheleleyo. Ngoko ke, indawo evuleke ngokupheleleyo yevalve imiselwe ngokwendawo yesango (okt stroke). Amanye amandongomane esiqu sevalve yesango abekwe kwisango, kwaye ukujikeleza kwesondo lesandla kuqhuba isikhondo sevalve ukujikeleza, nto leyo eyenza ukuba isango liphakame. Olu hlobo lwevalve lubizwa ngokuba yi-Rotary stem valve yesango okanyeNRS ivalve yesango.
Ixesha lokuposa: Jul-14-2022
