Imishini yokwakha i-XDYF20-01 ivalvu yokusiza umshayeli

Ukuhluleka kokulawulwa kwamandla kagesi

Ukwehluleka kokulawula ukucindezela kwesinye isikhathi kwenzeka lapho kusetshenziswa i-valve yokuchichima. Kunezimo ezimbili zokuhluleka kokulawulwa kwengcindezi ye-valve yokusiza umshayeli: enye iwukuthi ingcindezi ayikwazi ukusungulwa ngokulungisa i-handwheel elawula ingcindezi, noma ingcindezi ayikwazi ukufinyelela inani elilinganiselwe; Enye indlela ukulungisa ingcindezi yesondo lesandla ngaphandle kokuwa, noma ukukhulisa ingcindezi ngokuqhubekayo. Kunezizathu ezithile zokwehluleka kokulawulwa kwengcindezi, ngaphandle kokucisha i-radial ye-valve core ngenxa yezizathu ezahlukahlukene:

Okokuqala, i-damper yomzimba we-valve eyinhloko (2) ivinjiwe, futhi ingcindezi kawoyela ayikwazi ukudluliselwa ekamelweni eliphezulu le-valve enkulu kanye negumbi langaphambili le-valve yomshayeli, ukuze i-valve yomshayeli ilahlekelwe umsebenzi wayo wokulawula ukucindezela kwe-valve eyinhloko. Ngenxa yokuthi akukho ukucindezela kwamafutha ekamelweni eliphezulu le-valve eyinhloko futhi amandla entwasahlobo mancane kakhulu, i-valve eyinhloko iba i-valve yokusiza esebenza ngokuqondile enamandla amancane kakhulu entwasahlobo. Lapho ukucindezela ekamelweni lokungena kwamafutha liphansi kakhulu, i-valve eyinhloko ivula i-valve yokusiza futhi uhlelo alukwazi ukukhokhela ukwakha ukucindezela.

Isizathu sokuthi kungani ingcindezi ingakwazi ukufinyelela inani elilinganisiwe ukuthi intwasahlobo elawula ukucindezela ikhubazekile noma ikhethwe ngokungalungile, ukushaywa kwengcindezi yentwasahlobo elawula ukucindezela akwanele, ukuvuza kwangaphakathi kwe-valve kukhulu kakhulu, noma i-valve ye-cone. I-valve yokushayela igqoke ngokweqile.

Okwesibili, i-damper (3) ivinjiwe, ukuze ukucindezela kwamafutha akukwazi ukudluliselwa ku-valve ye-cone, futhi i-valve yomshayeli ilahlekelwa umsebenzi wokulungisa ukucindezela kwe-valve eyinhloko. Ngemuva kokuthi i-damper (i-orifice) ivinjiwe, i-valve ye-cone ngeke ivule uwoyela ochichimayo ngaphansi kwanoma yikuphi ukucindezela, futhi awekho amafutha agelezayo ku-valve ngaso sonke isikhathi. Ukucindezela emakamelweni aphezulu naphansi e-valve eyinhloko kuhlala kulinganayo. Ngenxa yokuthi indawo yokuthwala i-annular engxenyeni engenhla yomgogodla omkhulu we-valve inkulu kunaleyo ephansi, i-valve eyinhloko ihlale ivaliwe futhi ngeke igcwale, futhi ukucindezela kwe-valve eyinhloko kuzokwanda ngokunyuka komthwalo. Lapho i-actuator iyeka ukusebenza, ingcindezi yesistimu izokhuphuka unomphela. Ngaphezu kwalezi zizathu, kusadingeka ukuhlola ukuthi i-port yokulawula yangaphandle ivinjiwe nokuthi i-valve ye-cone ifakwe kahle yini.