I-valve yevemvane ene-eccentric hard seal ephindwe kabilikancane kancane ithuthukiswa isuka ku-valve uvemvane evamile ukuze ivumelane nezimo zokusebenza ezihlukene (ezifana nezinga lokushisa lokusebenza nokucindezela kokusebenza).Inezinzuzo zesakhiwo esilula, ukubeka uphawu okuthembekile, ukuvulwa kokukhanya, impilo ende yesevisi kanye nokugcinwa okulula.Njengamanje, ngokuthuthukiswa koshintsho olukhulu lwemishini yokwenza insimbi yesithando somlilo e-China, i-valve ye-butterfly eqinile eyi-double eccentric isetshenziswe kabanzi ekunikezeni amanzi kanye nokukhipha amanzi, ukuvikela umlilo wokwakha, i-metallurgy nezinye izinhlelo zamapayipi.
Isimiso sokuSebenza:
Ngokombono, i-valve ye-butterfly evamile ivalwe njengokuxhumana komugqa.Ngenkathi kusezingeni eliphezuludouble eccentric metal hard seal butterfly valve, isikhundla sepheya yokuvala sakha ibhande lendandatho ebanzi ukusuka kumugqa wokuqala ngenxa ye-eccentricity yesibili (isikhundla se-valve stem siya phezulu).Inqobo nje uma ukuxhumana okungaphezulu kwepheya evalayo kukuleli bhande lendandatho, ukuvala kungenziwa ngaphandle kwanoma yiliphi iqembu lokubopha lapho kuvulwa i-valve disc.
Ngesikhathi sokuvulwa kwediski ye-valve, amaphuzu okuvala we-disc ye-butterfly valve ahamba eduze kwe-tangent trajectory ye-conical valve seat.Futhi kukhona ukuhumusha okuhlobene phakathi kwamapheya okubekwa uphawu.Ngakho-ke i-torque ye-friction inkulu.Kodwa-ke, ukuhunyushwa phakathi kwamapheya okuvalwa kwe-double eccentric metal hard seal butterfly valveincane kakhulu.Futhi iphoyinti ngalinye lophawu lokuxhumana olungaphezulu lihlukaniswa ngokushesha eduze komzila webhasi le-conical valve seat.Ngakho-ke, i-torque ye-friction incane kakhulu, okunciphisa ngokuphumelelayo ukugqoka phakathi kwamapheya okufaka uphawu.
Ohlelweni lwe-metallurgy, i-double eccentric hard seal butterfly valve isetshenziswa kakhulu ohlelweni lokushisa ngaphambi kwesikhathi kanye nohlelo lokususa uthuli olomile lwesithando somlilo esishisayo esinobukhulu obujwayelekile, ukucindezela okuphansi kokusebenza, ukuvulwa okuphansi & ukuvala ukucindezelwa okuhlukile kanye nokushisa okuphezulu (200 ° C. ~ 350°C).
Njengoba ii-valve yevemvane ene-eccentric eqinile eqinileinokusebenza okuhle kakhulu kokuvala, izinga lokushisa elisebenzayo elibanzi, ingcindezi yokusebenza enkulu, ukumelana nokuguga, ukumelana nokugqwala kanye nempilo ende yesevisi.Ngakho-ke, izindima zayo zinjenge-valve yokuvala umoya ovuthayo, i-valve yokuvala igesi evuthayo, i-gas inlet & i-outlet yokuvala i-valve yesistimu yokushintsha ukushisa, i-flue gas inlet & i-valve yokuvala i-outlet yesistimu yokushintsha ukushisa nokuvalwa kwegesi. -vala i-valve yesistimu yokususa uthuli olomile.
