Ama-valve esango avamile ngokuvamile abhekisela kuma-valve esango avalwe kanzima. Lesi sihloko sihlaziya ngokuningiliziwe umehluko phakathi kwama-valve esango ane-soft-sealed kanye nama-valve esango ajwayelekile. Uma wenelisekile ngempendulo, sicela unikeze i-VTON isithupha.
Kalula nje, ama-valve esango ane-elastic ane-soft-sealed ayizimpawu phakathi kwezinsimbi nezingezona zensimbi, njenge-nylon\tetrafluoroethylene, nama-valve esango avalwe kanzima ayizimpawu phakathi kwezinsimbi nezinsimbi;
Ama-valve esango avalwe ngokuthambile kanye nama-valve esango avalwe kanzima abhekisela ezintweni zokuvala zesihlalo sevalvu. Izigxivizo eziqinile zifakwe kahle ngomshini ngezinto zesihlalo samavalvu ukuze kuqinisekiswe ukunemba okuhambisanayo nomongo wevalvu (ibhola), ngokuvamile insimbi engagqwali nethusi. Izigxivizo ezithambile zibhekisela ezintweni zokuvala ezishumekwe esihlalweni sevalvu njengezinto ezingezona ezensimbi. Ngenxa yokuthi izinto ezithambile zophawu zinokunwebeka okuthile, izidingo zokunemba kokucubungula ziphansi kakhulu kunezimpawu eziqinile. Sibhekisela ezicini ze-VTON ukuchaza umehluko phakathi kwama-valve amasango afakwe uphawu oluthambile angenisiwe kanye nama-valve esango afakwe uphawu oluqinile.
1. Izinto zokuvala
1. Izinto zokubeka uphawu zazo zombili zihlukile.Ama-valve esango avaliwengokuvamile zenziwe ngerabha noma i-polytetrafluoroethylene. Ama-valve esango avaliwe akhiwe ngezinsimbi ezifana nensimbi engagqwali.
2. Isigxivizo esithambile: Ipheya yophawu yenziwe ngensimbi ngakolunye uhlangothi kanye nempahla enwebekayo engeyona eyensimbi ngakolunye uhlangothi, ebizwa ngokuthi “uphawu oluthambile”. Lolu hlobo lophawu lunomsebenzi omuhle wokuvala, kodwa alumelani nezinga lokushisa eliphezulu, kulula ukulugqoka, futhi lunezinto ezingasebenzi kahle. Isibonelo: irabha yensimbi; steel tetrafluoroethylene, njll. Isibonelo, isigxivizo sesihlalo esinwebekayo esingenisiwei-valv yesangoI-e ye-VTON ivamise ukusetshenziswa emazingeni okushisa angaphansi kuka-100℃, futhi isetshenziswa kakhulu emanzini okushisa kwegumbi.
3. Isigxivizo esiqinile: I-seal pair yenziwe ngezinto zensimbi noma ezinye izinto eziqinile ezinhlangothini zombili, okubizwa ngokuthi "uphawu oluqinile". Lolu hlobo lophawu lusebenza kabi ngokuvala, kodwa lumelana nezinga lokushisa eliphezulu, luguge futhi lunezinto ezinhle zomshini. Isibonelo: insimbi yensimbi; ithusi lensimbi; i-graphite yensimbi; insimbi ingxubevange steel; (insimbi lapha ingase futhi ibe insimbi ecijile, insimbi ewuketshezi, insimbi eyingxubevange nayo ingase ibe ngaphezulu, ingxubevange efuthwe). Isibonelo, i-valve yesango yensimbi engenasici engenisiwe ye-VTON ingasetshenziselwa umusi, igesi, uwoyela namanzi, njll.
2. Ubuchwepheshe bokwakha
Imvelo yemishini yemboni yemishini iyinkimbinkimbi, iningi layo elingamazinga okushisa aphansi kakhulu kanye nengcindezi ephansi, enokumelana okukhulu kanye nokugqwala okunamandla kwendawo. Manje ubuchwepheshe sebuthuthukisiwe, ukuze ama-valve amasango avaliwe akhuthazwe kabanzi.
Ubudlelwano bobulukhuni phakathi kwezinsimbi kufanele bucatshangelwe. Eqinisweni, i-valve yesango evalwe kanzima iyafana naleyo evalwe ngokuthambile ngoba iwuphawu phakathi kwezinsimbi. Umzimba we-valve udingeka ukuthi uqiniswe, futhi ipuleti le-valve kanye nesihlalo se-valve kufanele kugaywe ngokuqhubekayo ukuze kutholakale ukuvala. Umjikelezo wokukhiqiza wama-valve amasango avaliwe mude.
3. Sebenzisa izimo
Umphumela wokuvala Izigxivizo ezithambile zingafinyelela ku-zero ukuvuza, kuyilapho izimpawu eziqinile zingaba phezulu noma zibe phansi ngokwezidingo;
Izigxivizo ezithambile kudingeka zingashi, futhi ukuvuza kuzokwenzeka emazingeni okushisa aphezulu, kuyilapho izigxivizo eziqinile ngeke zivuze. Ama-valve aqinile wokuvala izimo eziphuthumayo angasetshenziswa ngaphansi kwengcindezi ephezulu, kuyilapho izigxivizo ezithambile azikwazi ukusetshenziswa. Ngalesi sikhathi, i-valve yesango ye-VTON evalwe kanzima iyadingeka.
Izigxivizo ezithambile akufanele zisetshenziswe emithonjeni ethile edlayo, futhi izigxivizo eziqinile zingasetshenziswa;
4. Izimo zokusebenza
Izigxivizo ezinzima zingaba phezulu noma eziphansi ngokuvumelana nezidingo; izimpawu ezithambile kufanele zingashi, futhi izimvu zamanzi ezithambile zingafinyelela izimpawu eziphakeme ngazinye. Ngoba emazingeni okushisa aphansi kakhulu, izimpawu ezithambile zizovuza, kuyilapho izimpawu eziqinile zingenayo le nkinga; izimpawu eziqinile ngokuvamile zingamelana nokucindezela okuphezulu kakhulu, kuyilapho izimvu zamanzi ezithambile zingakwazi. Isibonelo, ama-valve esango lensimbi akhiwe kwamanye amazwe e-VTON asebenzisa izimpawu ezinzima, futhi ingcindezi ingafinyelela ku-32Mpa noma ku-2500LB; izimpawu ezithambile azikwazi ukusetshenziswa kwezinye izindawo ngenxa yokugeleza kwe-medium, njengemithombo yezindaba egqwalayo); ekugcineni, ama-valve ophawu oluqinile ngokuvamile abiza kakhulu kunezimpawu ezithambile. Mayelana nokwakhiwa, umehluko phakathi kokubili awumkhulu, umehluko omkhulu yisihlalo se-valve, uphawu oluthambile aluyona insimbi, futhi uphawu oluqinile luyinsimbi.
V. Ukukhethwa kwezisetshenziswa
Ukukhethwa kwe-soft and hard sealama-valve esangoikakhulukazi kusekelwe inqubo medium, izinga lokushisa kanye ingcindezi. Ngokuvamile, uma i-medium iqukethe izinhlayiya eziqinile noma igugile noma izinga lokushisa lingaphezu kwama-degree angu-200, kungcono kakhulu ukusebenzisa izimpawu eziqinile. Isibonelo, isitimu esinezinga eliphezulu lokushisa ngokuvamile sizungeze u-180-350 ℃, ngakho-ke kufanele kukhethwe i-valve yesango eliqinile.
6. Umehluko ngentengo nezindleko
Ngokwezinga elifanayo, ingcindezi nezinto ezibonakalayo, ezingeniswa ngaphandle zivaliwe ngokuqinileama-valve esangoabiza kakhulu kunamavalvu esango angenisiwe avaliwe; isibonelo, i-valve yesango lensimbi yensimbi engenisiwe ye-VTON's DN100 ibiza ngo-40% kune-DN100 engenisiwe yensimbi eyinsimbi evalwe ngensimbi yesango elithambile; uma womabili ama-valve esango elivalwe kanzima kanye nama-valve esango avaliwe angasetshenziswa ngaphansi kwezimo zokusebenza, lapho ucabangela izindleko, zama ukukhetha ama-valve amasango angenasici avela kwamanye amazwe.
7. Umehluko empilweni yenkonzo
Isici esithambile sisho ukuthi uhlangothi olulodwa lwepheya yophawu lwenziwe ngezinto ezinobunzima obuphansi. Ngokuvamile, isihlalo sophawu oluthambile senziwe ngezinto ezingezona ezensimbi ezinamandla athile, ubulukhuni nokumelana nezinga lokushisa. Inokusebenza kahle kokuvala futhi ingafinyelela ku-zero ukuvuza, kodwa impilo yayo kanye nokuvumelana nezimo ezishisayo kubi kakhulu. Izigxivizo eziqinile zenziwe ngensimbi futhi zingasebenzi kahle uma kuqhathaniswa, nakuba abanye abakhiqizi bethi bangafinyelela ukuvuza kwe-zero.
Inzuzo yezimpawu ezithambile ukusebenza kahle kokuvala, kanti okubi ukuguga kalula, ukuguga, kanye nempilo yesevisi emfushane. Izigxivizo eziqinile ziphila isikhathi eside, kodwa ukusebenza kwazo kuphansi uma kuqhathaniswa nezimpawu ezithambile. Lezi zinhlobo ezimbili zezimpawu zingaphelelisana. Mayelana nokubekwa uphawu, izimpawu ezithambile zingcono uma kuqhathaniswa, kodwa manje ukuvalwa kwezigxivizo eziqinile nakho kungahlangabezana nezidingo ezihambisanayo.
Izigxivizo ezithambile azikwazi ukuhlangabezana nezidingo zenqubo kwezinye izinto ezigqwalayo, kodwa izimpawu eziqinile zingayixazulula le nkinga!
Lezi zinhlobo ezimbili zezimpawu zingaphelelisana. Mayelana nokubekwa uphawu, izimpawu ezithambile zingcono uma kuqhathaniswa, kodwa manje ukuvalwa kwezimpawu eziqinile nakho kungahlangabezana nezidingo ezihambisanayo!
Inzuzo yezimpawu ezithambile ukusebenza kahle kokuvala, kanti okubi ukuguga kalula, ukuguga, kanye nempilo yesevisi emfushane.
Izimpawu eziqinile zinesikhathi eside sokusebenza, kodwa ukuvala uphawu kubi kakhulu kunezimpawu ezithambile.
Isikhathi sokuthumela: Dec-14-2024
