Ivalve yebhabhathane enye eccentric
Ukuze kulungiswe ingxaki ye-extrusion phakathi kwediski kunye nesihlalo sevalve yevalve yebhabhathane egxininisekileyo, iveliswa ivalve yebhabhathane eccentric. Ukusasaza kwaye unciphise ukukhutshwa okugqithisileyo kweziphelo eziphezulu kunye nezisezantsi zeplate yebhabhathane kunye nesihlalo sevalve. Nangona kunjalo, ngenxa yesakhiwo esisodwa se-eccentric, i-scraping phenomenon phakathi kwe-disc kunye nesihlalo se-valve ayipheli ngexesha lokuvula kunye nokuvala inkqubo ye-valve, kwaye uluhlu lwesicelo lufana nolo lwe-valve ye-butterfly concentric, ngoko ke. ayisetyenziswanga kakhulu.
Ivalve yebhabhathane ene-eccentric ephindwe kabini
Ngokwesiseko sevalve yebhabhathane enye eccentric, kunjalo ivalve yebhabhathane eccentric kabini esetyenziswa kakhulu ngoku. Isici sayo sesakhiwo kukuba i-shaft center ye-valve stem iyaphambuka kumbindi we-disc kunye nombindi womzimba. Impembelelo ye-eccentricity ephindwe kabini yenza ukuba i-disc ihlukane nesihlalo se-valve ngokukhawuleza emva kokuba i-valve ivuliwe, ephelisa kakhulu ukukhutshwa okungafunekiyo kunye nokukrazula phakathi kwe-disc kunye nesihlalo se-valve, ukunciphisa ukuchasana kokuvula, ukunciphisa ukunxiba, kunye nokuphucula iSitulo. ubomi. Ukukhuhla kuncitshiswe kakhulu, kwaye kwangaxeshanye,ivalve yebhabhathane eccentric kabini inokusebenzisa isihlalo sevalve yentsimbi, ephucula ukusetyenziswa kwevalve yebhabhathane kwindawo yobushushu obuphezulu. Nangona kunjalo, ngenxa yokuba umgaqo wayo wokutywina uyisakhiwo sokutywinwa kwesigxina, oko kukuthi, indawo yokutywina yediski kunye nesihlalo sevalve sinxibelelana nomgca, kunye ne-elastic deformation ebangelwa yi-disc extrusion yesitulo sevalve ivelisa umphumo wokutywina, ngoko ke, ineemfuno eziphezulu zesithuba sokuvala (ingakumbi isihlalo sentsimbi yeValve), umthamo ophantsi woxinzelelo oluphantsi, yiyo loo nto ngokwesiko abantu bacinga ukuba iivalve zebhabhathane azikwazi ukumelana noxinzelelo oluphezulu kwaye zinokuvuza okukhulu.
Ivalve yebhabhathane eneeccentric ezintathu
Ukumelana nokushisa okuphezulu, isitywina esinzima kufuneka sisetyenziswe, kodwa inani lokuvuza likhulu; ukuya ku-zero ukuvuza, itywina elithambileyo kufuneka lisetyenziswe, kodwa alimelani nobushushu obuphezulu. Ukoyisa ukuchasana kwevalve yebhabhathane ephindwe kabini, ivalve yebhabhathane ibiyeyona ndawo iphambili okwesithathu. Isici sayo sesakhiwo kukuba ngelixa i-valve ye-eccentric ephindwe kabini i-eccentric, i-conical axis ye-disc yokutywinwa komhlaba ithambekele kwi-cylinder axis yomzimba, oko kukuthi, emva kwe-eccentricity yesithathu, icandelo lokutywinwa kwe-disc alikwenzi. utshintsho. Ke isangqa sokwenyani, kodwa i-ellipse, kwaye imilo yendawo yokutywina nayo i-asymmetrical, elinye icala lithambekele kumgca ophakathi womzimba, kwaye elinye icala lihambelana nomgca ophakathi womzimba. Uphawu lwesi sithambiso sesithathu kukuba isakhiwo sokutywinwa sitshintshiwe ngokusisiseko, ayisesiso isitywina, kodwa isitywina se-torsion, oko kukuthi, ayithembeli kwi-elastic deformation yesitulo sevalve, kodwa ixhomekeke ngokupheleleyo kuqhagamshelwano. Uxinzelelo lomphezulu wesihlalo sevalve ukufezekisa isiphumo sokutywinwa, ke ngoko, ingxaki yokuvuza kwe-zero yesihlalo sevalve yesinyithi isombululwe kwi-swoop enye, kwaye ngenxa yokuba uxinzelelo lomphezulu wonxibelelwano lulingana noxinzelelo oluphakathi, uxinzelelo oluphezulu kunye nobushushu obuphezulu. Ukuxhathisa kwakhona kusonjululwa ngokulula.
Ixesha lokuposa: Jul-13-2022
