1, Ivalve yebhabhathane embindini
Uphawu lolwakhiwo lwevalve yebhabhathane kukuba i-axis yesiqu, iziko lepleyiti yebhabhathane kunye neziko lomzimba zikwindawo enye. Ulwakhiwo lulula kwaye ukuveliswa kukulungele. Ivalve yebhabhathane enerabha eqhelekileyo yolu hlobo. Ukungalungi kukuba i-butterfly plate kunye nesihlalo sevalve sihlala sikwimeko ye-extrusion kunye ne-scraping, kunye nomgama omkhulu wokumelana kunye nokugqoka ngokukhawuleza. Ukuze unqobe i-extrusion, i-scraping kunye nokuqinisekisa ukusebenza kokutywinwa, isihlalo se-valve ngokusisiseko senziwe ngezinto ezilastiki ezifana ne-rubber okanye i-polytetrafluoroethylene, kodwa ibuye inqunyelwe ngubushushu obusetyenziswayo. Yiyo loo nto ngokwesiko abantu becinga ukuba ivalve yebhabhathane ayixhathisi kubushushu obuphezulu.
2、 Ivalve yebhabhathane ene-eccentric enye
Ukuze kusonjululwe ingxaki ye-extrusion phakathi kwepleyiti yebhabhathane kunye nesihlalo sevalve yevalve yebhabhathane ephakathi, kuveliswe ivalve yebhabhathane enye. Uphawu lwayo lolwakhiwo kukuba i-axis ye-shaft ye-valve stem iyatenxa kumbindi wepleyiti yebhabhathane, ukuze iziphelo ezingaphezulu nezisezantsi zeplate yebhabhathane zingabi saba yi-axis ejikelezayo, ethi isasazeke kwaye icuthe i-extrusion egqithisileyo phakathi kweziphelo eziphezulu nezisezantsi zepleyiti yebhabhathane kunye nesitulo sevalve. Nangona kunjalo, ngenxa yesakhiwo esisodwa se-eccentric kuyo yonke inkqubo yokuvula i-valve kunye nokuvala, i-scraping phenomenon phakathi kwe-butterfly plate kunye nesihlalo sevalve ayipheli, kwaye umthamo wayo wokusetyenziswa ufana ne-valve ye-butterfly edibeneyo, ngoko ayifane isetyenziswe.
3, Ivalve yebhabhathane ephindwe kabini
Ngokwesiseko sevalve yebhabhathane ene-eccentric, ivalve yebhabhathane ephindwe kabini esetyenziswa ngokubanzi ngoku iphuculwe ngakumbi. Isici sesakhiwo kukuba i-axis ye-valve stem iyatenxa kumbindi wepleyiti yebhabhathane kunye nomzimba. Impembelelo ye-eccentricity ephindwe kabini yenza ukuba i-butterfly plate ihlukane nesihlalo sevalve ngokukhawuleza emva kokuba i-valve ivuliwe, iphelisa kakhulu into engafunekiyo phezu kwe-extrusion kunye ne-scratch phenomenon phakathi kwepleyiti yebhabhathane kunye nesihlalo sevalve, ukunciphisa umgama wokumelana nokuvula, ukunciphisa ukunxiba kunye nokuphucula ubomi benkonzo yesihlalo sevalve. Kwangaxeshanye, ivalve yebhabhathane ephindwe kabini inokusebenzisa isitulo sentsimbi, esiphucula ukusetyenziswa kwevalve yebhabhathane kwindawo yobushushu obuphezulu. Kodwa ngenxa yokuba umgaqo wayo wokutywina uyindawo yokutywinwa kwesakhiwo, oko kukuthi, indawo yokutywina yepleyiti yebhabhathane kunye nesihlalo sevalve ihambelana nomgca, kunye ne-elastic deformation ebangelwa ukukhama isihlalo sevalve ngepleyiti yebhabhathane ivelisa isiphumo sokutywinwa, ngoko ke ineemfuno eziphezulu kwindawo yokuvala (ingakumbi isihlalo sevalve yentsimbi) kunye noxinzelelo oluphantsi lomthamo. Yiyo loo nto ngokwesiko abantu becinga ukuba ivalve yebhabhathane ayixhathisi kuxinzelelo oluphezulu kwaye inokuvuza okukhulu.
4. Ivalve yebhabhathane eneeccentric ezintathu
Ukumelana nobushushu obuphezulu, itywina eliqinileyo kufuneka lisetyenziswe, kodwa ukuvuza kukhulu; Ukuze kungabi nakuvuza, kufuneka kusetyenziswe itywina elithambileyo, kodwa lingaxhathisi kubushushu obuphezulu. Ukoyisa ukuchasana kwevalve yebhabhathane ephindwe kabini, ivalve yebhabhathane i-eccentric okwesithathu. Iimpawu zayo zesakhiwo kukuba i-axis ye-conical yendawo yokutywinwa kwepleyiti yebhabhathane ithambekele kwi-cylinder axis yomzimba oyintloko ngelixa indawo ye-axis ye-double eccentric valve stem i-eccentric, oko kukuthi, emva kwe-eccentric yesithathu, icandelo lokutywinwa kwe-butterfly plate ayisekho i-ellipse ye-seal, i-seal surface, kodwa i-seal ye-seal ayisekho, i-seal ye-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal, i-seal. icala lithambekele kumgca osembindini womzimba oyintloko, kwaye elinye icala lingqamene nomgca osembindini womzimba oyintloko.
Ixesha lokuposa: Mar-31-2022