Injongo yokusebenzisa i-valve yokutshekisha kukuthintela ukuhamba kwe-reverse ye-medium, kwaye i-valve yokukhangela ifakwe ngokubanzi kwindawo yokuphuma yempompo. Ukongezelela, i-valve yokutshekisha kufuneka ifakwe kwi-outlet ye-compressor. Ngamafutshane, ukwenzela ukuba kuthintelwe ukuhamba kwe-reverse ye-medium, i-valve yokutshekisha kufuneka ifakwe kwisixhobo, isixhobo okanye umbhobho.
Ngokuqhelekileyo, iivalvu zokujonga ukuphakamisa okuthe nkqo zisetyenziswa kwimibhobho ethe tye enobubanzi obuyi-50mm. Ivalve yokukhangela yokunyusa ngokuthe tye inokufakwa kwimibhobho yomibini ethe tyaba kunye nethe nkqo. Ivalve esezantsi ifakelwa kuphela kumbhobho othe nkqo wempompo yokungena, kwaye ophakathi uhamba ukusuka ezantsi ukuya phezulu.
I-valve yokukhangela i-swing ingenziwa ibe yingcinezelo ephezulu kakhulu yokusebenza, i-PN inokufikelela kwi-42MPa, kwaye i-DN nayo inokwenziwa ibe nkulu kakhulu, ubuninzi bunokufikelela ngaphezu kwe-2000mm. Ngokwezinto ezahlukeneyo zegobolondo kunye nesitywina, inokusetyenziswa kuyo nayiphi na indlela yokusebenza kunye naluphi na ubushushu obusebenzayo. I-medium ngamanzi, umphunga, igesi, i-corrosive medium, i-oyile, ukutya, amayeza, njl.
Isikhundla sokufakela i-valve yokukhangela i-swing ayikhawulelwanga, ngokuqhelekileyo ifakwe kumbhobho othe tye, kodwa inokufakwa kumbhobho othe nkqo okanye umbhobho othambekileyo.
Ithuba elisebenzayo levalve yokujonga ibhabhathane luxinzelelo oluphantsi kunye nobubanzi obukhulu, kwaye umcimbi wofakelo ulinganiselwe. Ngenxa yokuba uxinzelelo olusebenzayo lwe-valve yokukhangela i-butterfly alukwazi ukuba luphezulu kakhulu, kodwa i-diameter ye-nominal ingaba nkulu kakhulu, enokufikelela ngaphezu kwe-2000mm, kodwa uxinzelelo oluncinci lungaphantsi kwe-6.4MPa. Ivalve yokukhangela ibhabhathane inokwenziwa ibe luhlobo lwe wafer, oluthi lufakwe ngokubanzi phakathi kweeflange ezimbini zombhobho ngendlela yoqhagamshelo lwewafer.
Indawo yokufakela ivalve yokukhangela ibhabhathane ayikhawulelwanga, inokufakwa kumbhobho othe tye, umbhobho othe nkqo okanye umbhobho othambekileyo.
Ivalve yokujonga i-diaphragm ifanelekile kwimibhobho etyekele kwihamile yamanzi. I-diaphragm inokuphelisa kakuhle isando samanzi esibangelwa ukuhamba ngasemva kwe-medium. Ekubeni ubushushu bokusebenza kunye noxinzelelo olusebenzayo lwe-diaphragm check valves lukhawulelwe yi-diaphragm material, ngokuqhelekileyo lusetyenziswa kwimibhobho yoxinzelelo oluphantsi kunye nobushushu obuqhelekileyo, ngakumbi kwimibhobho yamanzi epompo. Ngokuqhelekileyo, iqondo lokushisa elisebenzayo eliphakathi liphakathi kwe -20 ~ 120 ℃, kwaye uxinzelelo lokusebenza lungaphantsi kwe-1.6MPa, kodwa i-valve yokujonga i-diaphragm inokufikelela kububanzi obukhulu, kwaye i-DN ephezulu ingaba ngaphezu kwe-2000mm.
Ivalve yokujonga i-diaphragm isetyenziswe ngokubanzi kwiminyaka yakutshanje ngenxa yokusebenza kwayo okugqwesileyo kokungangeni kwamanzi, ubume obulula kunye neendleko eziphantsi zokwenziwa.
Ivalve yokukhangela ibhola inokusebenza kakuhle kokutywinwa, ukusebenza okuthembekileyo kunye nokuchasana kakuhle kwesando samanzi ngenxa yokuba isitywina sisphere esigqunywe ngerabha; kwaye ngenxa yokuba itywina ingaba yibhola enye okanye iibhola ezininzi, inokwenziwa ibe yi-diameter enkulu. Nangona kunjalo, itywina layo liyingqukuva evulekileyo egqunywe ngerabha, engafanelekanga kwimibhobho yoxinzelelo oluphezulu, kodwa ifanelekile kuphela kwimibhobho ephakathi kunye nephantsi.
Ekubeni izinto zeqokobhe levalve yokutshekisha ibhola zingenziwa ngentsimbi engenanto, kwaye ingqukuva yetywina ingagqunywa ngeplastiki yobunjineli yePTFE, ingasetyenziswa kwimibhobho enemithombo yeendaba ezonakalisayo.
Ukushisa okusebenzayo kolu hlobo lwe-valve yokutshekisha phakathi kwe--101 ~ 150 ℃, uxinzelelo oluncinci luyi-≤4.0MPa, kunye nobubanzi obuphakathi kwe-200 ~ 1200mm.
Ixesha lokuposa: Mar-23-2022
