1, Ivalve uvemvane emaphakathi
Isici sesakhiwo se-valve uvemvane ukuthi i-axis ye-stem, i-butterfly plate centre kanye nesikhungo somzimba kusendaweni efanayo. Isakhiwo silula futhi ukwakhiwa kulula. I-valve yevamvane enerabha ejwayelekile ingeyalolu hlobo. Ububi ukuthi ipuleti uvemvane kanye nesihlalo sevalvu kuhlala kusesimweni sokukhishwa nokukhuhla, nebanga elikhulu lokumelana nokuguga okusheshayo. Ukuze unqobe i-extrusion, i-scraping nokuqinisekisa ukusebenza kokuvala, isihlalo se-valve ngokuyisisekelo senziwe ngezinto ezinwebekayo ezifana nerabha noma i-polytetrafluoroethylene, kodwa futhi kunqunyelwe izinga lokushisa elisetshenziswayo. Yingakho ngokwesiko abantu becabanga ukuthi i-valve uvemvane ayimelani nezinga lokushisa eliphezulu.
2, I-valve yevemvane ene-eccentric eyodwa
Ukuze kuxazululwe inkinga ye-extrusion phakathi kwepuleti lovemvane kanye nesihlalo sevalvu ye-valve uvemvane eligxilile, kukhiqizwa i-valve eyodwa ye-butterfly eccentric. Isici sayo sesakhiwo ukuthi i-axis ye-shaft yesiqu se-valve iyachezuka phakathi nendawo yepuleti lovemvane, ukuze iziphetho ezingaphezulu nezingezansi zepuleti lovemvane zingabe zisaba i-eksisi yokuzungezisa, ehlakaza futhi yehlise ukuphuma ngokweqile phakathi kweziphetho ezingaphezulu nezingezansi zepuleti lovemvane kanye nesihlalo se-valve. Kodwa-ke, ngenxa yesakhiwo esisodwa se-eccentric kuyo yonke inqubo yokuvula nokuvala i-valve, ukwenzeka kwe-scraping phakathi kwepuleti le-butterfly nesihlalo se-valve akupheli, futhi ububanzi bokusebenza bayo bufana ne-valve ye-butterfly egxilile, ngakho-ke akuvamile ukusetshenziswa.
3, I-valve yevemvane eyi-eccentric kabili
Ngokwesisekelo se-valve uvemvane oluyi-eccentric, i-valve uvemvane oluyi-eccentric ephindwe kabili esetshenziswa kabanzi njengamanje ithuthukiswa nakakhulu. Isici sesakhiwo ukuthi i-eksisi yesiqu se-valve isuka phakathi nendawo yepuleti lovemvane kanye nomzimba. Umthelela we-eccentricity kabili wenza ukuba ipuleti le-butterfly lihlukane nesihlalo se-valve ngokushesha ngemva kokuvulwa kwe-valve, iqeda kakhulu into engadingekile phezu kwe-extrusion kanye nokuklwebheka phakathi kwepuleti le-butterfly nesihlalo se-valve, kunciphisa ukuvuleka kwebanga lokumelana, kunciphisa ukuguga futhi kuthuthukise impilo yesevisi yesihlalo se-valve. Ngesikhathi esifanayo, i-valve ye-butterfly ephindwe kabili ingasebenzisa isihlalo sensimbi, esithuthukisa ukusetshenziswa kwe-butterfly valve endaweni yokushisa ephezulu. Kodwa ngenxa yokuthi isimiso sayo sokubeka uphawu siyisakhiwo sokubeka uphawu, okungukuthi, indawo yokuvala ipuleti le-butterfly nesihlalo se-valve ixhumene nomugqa, futhi ukuguqulwa kwe-elastic okubangelwa ukucindezela isihlalo se-valve ngokusebenzisa ipuleti yevemvane kuveza umphumela wokuvala, ngakho-ke inezidingo eziphakeme endaweni yokuvala (ikakhulukazi isihlalo se-valve yensimbi) kanye nomfutho ophansi wokuthwala umthamo. Yingakho ngokwesiko abantu becabanga ukuthi i-valve uvemvane ayimelani nomfutho ophezulu futhi inokuvuza okukhulu.
4. I-valve yevemvane ene-eccentric kathathu
Ukuze ukumelana nokushisa okuphezulu, uphawu oluqinile kufanele lusetshenziswe, kodwa ukuvuza kukhulu; Ukuze kube yi-zero ukuvuza, kufanele usebenzise uphawu oluthambile, kodwa olungamelani nokushisa okuphezulu. Ukuze unqobe ukungqubuzana kwe-valve yevemvane ene-eccentric ephindwe kabili, i-valve uvemvane i-eccentric okwesithathu. Izici zayo zesakhiwo ukuthi i-axis ye-conical ye-sealing surface ye-butterfly plate ithambekele ku-cylinder axis yomzimba oyinhloko ngenkathi isikhundla se-axis ye-valve eccentric stem eccentric i-eccentric, okusho ukuthi, ngemva kwe-eccentric yesithathu, isigaba sokuvala sepuleti yevemvane ayiseyona i-ellipse eyodwa, ukubunjwa kwe-ellipse, ukubunjwa kwe-ellipse eyodwa, ukubunjwa kwe-ellipse eyodwa, ukubunjwa kwe-valve kuyindilinga. uhlangothi luthambekele emgqeni omaphakathi womzimba omkhulu, kanti olunye uhlangothi luhambisana nomugqa omaphakathi womzimba omkhulu.
Isikhathi sokuthumela: Mar-31-2022