Ukuhlukaniswa nokusetshenziswa kwama-valve okuhlola
I-valve yokuhlola ibhekisela ezingxenyeni ezivulayo nezivalayo zevalvu eyindilinga futhi zithembele esisindweni sazo kanye nengcindezi yemidiya ukukhiqiza isenzo sokuvimba ukugeleza emuva okuphakathi kwe-valve. I-valve yokuhlola i-valve ezenzakalelayo, eyaziwa nangokuthi i-valve yokuhlola, i-valve yendlela eyodwa, i-valve engabuyi noma i-valve yokuhlukanisa.
Ukunyakaza kwe-Flap kuhlukaniswephakamisa i-valve yokuhlolafuthijika i-valve yokuhlola. I-valve yokuhlola i-Lift kanye ne-globe valve structure iyafana, kuphela ukuntuleka kwe-valve stem ukushayela i-valve flap. Okuphakathi okuvela ohlangothini lwe-inlet (uhlangothi oluphansi) olungenayo, kusukela ohlangothini lwe-outlet (uhlangothi olungaphezulu) ukuphuma. Lapho ingcindezi yokungena ingaphezu kwesisindo se-valve flap kanye nokumelana nokugeleza kwayo nalapho i-valve ivuliwe. Ngokuphambene, i-valve ivaliwe lapho i-medium igeleza emuva. I-valve yokuhlola i-Swing ine-slant futhi ingazungeza i-axis ye-valve flap, isimiso sokusebenza sifana ne-valve yokuhlola i-lift. Ama-valve okuhlola avame ukusetshenziswa njenge-valve engezansi yedivayisi yokumpompa, engavimbela ukugeleza kwamanzi emuva. Ama-valve okuhlola nama-valve embulunga asetshenziswa ngokuhlangene, angadlala indima ephephile yokuhlukaniswa. Ububi buwukumelana okuphezulu nokuvaleka kahle uma kuvaliwe.
Okokuqala, i-valve yokuhlola i-lift iqukethe izinhlobo ezimbili eziqondile nezivundlile.
Ukuma komzimba we-valve we-valve yokuhlola i-lift kuyafana nalokho kwe-globe valve, ngakho-ke inokumelana okukhulu noketshezi. I-valve flap islayida eduze komugqa omaphakathi oqondile womzimba we-valve. Lapho i-medium igeleza, i-flap ye-valve ivulwa ngokucindezela okuphakathi, futhi lapho okuphakathi kuyeka ukugeleza, i-flap ye-valve ihlezi esihlalweni se-valve ngokuzilenga.
Ivalvu yokuhlola ikheshi eqondile. Isiqondiso sesiteshi se-inlet ne-outlet kanye nesiqondiso sesiteshi se-valve siyafana, ukumelana nokugeleza kuncane kunohlobo oluqondile. Ivalvu yokuhlola ikheshi eqondile ifakwe epayipini elime mpo.ngokusebenzisa i-valve yokuhlola i-lift ingafakwa kuphela epayipini elivundlile. Ikhawulelwe yizidingo zokufaka, ezivame ukusetshenziswa ezikhathini ezinobubanzi obuncane DN <50.
Okwesibili, i-disc yevalvu yokuhlola i-swing isesimweni esiyindilinga futhi izungeza i-axis yesihlalo se-valve.
Ngenxa yesiteshi esilungisiwe ngaphakathi kwe-valve, ukumelana nokugeleza kuncane kune-valve yokuhlola i-lift. Ifanele amapayipi amancane naphakathi, anomfutho ophansi, kanye nobubanzi obukhulu (izinga lokugeleza eliphansi nezimo ezinkulu zobubanzi lapho ukugeleza kungashintshi njalo). Ukusebenza kokubekwa uphawu akukuhle njengohlobo lokuphakamisa.
Ama-valve okuhlola i-Swing ahlukaniswe abe izinhlobo ezintathu: i-disc eyodwa, i-double disc, ne-multi disc. Lezi zinhlobo ezintathu zihlukaniswa ngokuyinhloko ngokobubanzi be-valve, ukuze kuvinjelwe ukushaqeka kwe-hydraulic lapho okuphakathi kuma ukugeleza noma ageleza emuva. Ama-valve okuhlola i-single disc swing ngokuvamile alungele ukusetshenziswa kwe-medium caliber. Uma usebenzisa i-valve yokuhlola ukujika kwe-disc eyodwa kumapayipi anobubanzi obukhulu, kungcono ukusebenzisa i-valve yokuhlola evala kancane enganciphisa umfutho wesando samanzi ukuze unciphise umfutho wesando samanzi. Ama-valve okuhlola ama-disc swing afanele amapayipi amakhulu namaphakathi. I-valve yokuhlola i-disc ephindwe kabili enesakhiwo esincane nesisindo esincane i-valve yokuhlola ekhula ngokushesha; Ama-valve okuhlola ama-disc amaningi afanele amapayipi amakhulu obubanzi.Indawo yokufaka i-valve yokuhlola i-swing ayinqunyelwe, futhi ingafakwa kumapayipi avundlile, aqondile, noma athambekele.
Okwesithathu, i-valve yokuhlola uvemvane: uhlobo oluqondile.
Ukwakheka kwe-valve yokuhlola uvemvane kufana ne-butterfly valve. Isakhiwo sayo silula, ukumelana nokugeleza okuncane, ukucindezela kwesando samanzi nakho kuncane. I-valve flap izungeza iphinikhodi esihlalweni sevalvu yevalvu yokuhlola. I-valve yokuhlola uhlobo lwe-Disc inesakhiwo esilula, ingafakwa kuphela epayipini elivundlile, ukuvala uphawu kumpofu.
Okwesine, i-valve yokuhlola i-diaphragm: kunezinhlobo ezihlukahlukene zesakhiwo, zonke zisebenzisa i-diaphragm njengezingxenye zokuvula nokuvala.
Ngenxa yokusebenza kwayo kwesando samanzi, isakhiwo esilula, izindleko eziphansi, eminyakeni yamuva nje ukuthuthukiswa okusheshayo, i-valve yokuhlola i-diaphragm isetshenziswa kabanzi. Kodwa ukusetshenziswa kwe-diaphragm hlola izinga lokushisa kwe-valve nokucindezela ngemikhawulo yezinto ezibonakalayo ze-diaphragm.I-valve yokuhlola i-diaphragm ilungele ukukhiqiza kalula umthelela wamanzi epayipini, i-diaphragm ingaba yinhle kakhulu ukuqeda i-medium ngokumelene nokugeleza kwamanzi akhiqizwe umthelela, ngokuvamile isetshenziswa epayipini lokushisa elisezingeni eliphansi, elifaneleka kakhulu. amapayipi amanzi, izinga lokushisa elijwayelekile lendawo ephakathi -12 - 120 ℃ phakathi kwengcindezi yokusebenza engu-<1.6MPa, kodwa ivalvu yokuhlola i-diaphragm ingenziwa ukuze kuzuzwe Isilinganiso esikhulu, esiphezulu singafinyelelwa ku-DN 2000mm noma ngaphezulu! Kodwa-ke, i-valve yokuhlola i-diaphragm ingaba yezinga elikhulu, i-DN ingafinyelela ku-2000mm noma ngaphezulu.
