Ukuvalwa kwe-valve kuyingxenye ebalulekile ye-valve yonke, inhloso yayo eyinhloko ukuvimbela ukuvuza,i-valveisihlalo sokuvala sibuye sibizwe ngendandatho yokuvala, iyinhlangano ethintana ngqo nendawo esemgqeni wepayipi futhi ivimbele okuphakathi ukuthi ungagelezi. Lapho i-valve isetshenziswa, kunemithombo yezindaba ehlukahlukene epayipini, njengoketshezi, igesi, uwoyela, imidiya ebolayo, njll., futhi izimpawu zamavalvu ahlukene zisetshenziswa ezindaweni ezihlukene futhi zingakwazi ukuzivumelanisa nezimo ezihlukahlukene.
I-TWSVi-alvekukukhumbuza ukuthi izinto zokwakha ze-valve seal zingahlukaniswa zibe izigaba ezimbili, okuyizinto zensimbi nezinto ezingezona ezensimbi. Izigxivizo ezingezona ezensimbi ngokuvamile zisetshenziswa emigqeni emazingeni okushisa avamile nokucindezela, kuyilapho izigxivizo zensimbi zinezinhlobonhlobo zokusetshenziswa futhi zingasetshenziswa emazingeni okushisa aphezulu. umfutho ophezulu.
Irabha yokwenziwa ingcono kunenjoloba yemvelo mayelana nokumelana nowoyela, ukumelana nezinga lokushisa kanye nokumelana nokugqwala. Ngokuvamile, izinga lokushisa lokusebenza kwerabha yokwenziwa yi-t≤150°C, irabha yemvelo ngu-t≤60°C, kanye nenjoloba isetshenziselwa ukuvala ama-valve embulunga, ama-valve esango, ama-diaphragm valves, ama-butterfly valves, ama-valve okuhlola, ama-valve okuncinza namanye ane-PN yokucindezela okuzisholo.≤1MPa.
2. Inayiloni
Inayiloni inezici ze-coefficient encane yokungqubuzana kanye nokumelana nokugqwala okuhle. Inayiloni isetshenziswa kakhulu kumavalvu ebhola kanye namavalvu eglobhu anezinga lokushisa elingu-t≤90°C kanye nengcindezi ye-PN≤32MPa.
I-PTFE isetshenziswa kakhulu kumavalvu embulunga, amavalvu esango, amavalvu ebhola, njll. enezinga lokushisa elingu-t.≤232°C kanye nomfutho ojwayelekile we-PN≤6.4MPa.
4. Insimbi
I-cast iron isetshenziselwa ama-valve esango, ama-globe valves, ama-plug valves, njll. lokushisa t≤100°C, ingcindezi yegama elithi PN≤1.6MPa, igesi namafutha.
5. Ingxubevange ye-Babbitt
Ingxubevange ye-Babbitt isetshenziselwa i-ammonia globe valve enezinga lokushisa elingu-t-70~150℃kanye nengcindezi ye-PN≤2.5MPa.
6. Ingxube yethusi
Izinto ezisetshenziswa kakhulu zama-alloys ethusi ziyi-6-6-3 tin bronze kanye nethusi le-manganese elingu-58-2-2. Ingxubevange yethusi inokumelana okuhle nokugqokwa futhi ifanele amanzi nesitimu esinezinga lokushisa elingu-t≤200℃kanye nengcindezi ye-PN≤1.6MPa. Ivame ukusetshenziswa kuma-valve esango, ama-globe valves, ama-valve okuhlola, ama-plug valves, njll.
7. Insimbi engagqwali ye-Chrome
Amabanga asetshenziswa kakhulu ensimbi engagqwali ye-chromium yi-2Cr13 kanye ne-3Cr13, ecinywe futhi yaqiniswa, futhi inokumelana nokugqwala okuhle. Ivamise ukusetshenziswa kumavalvu amanzi, isitimu kanye ne-petroleum enezinga lokushisa elingu-t≤450℃kanye nengcindezi ye-PN≤32MPa.
8. I-Chrome-nickel-titanium insimbi engagqwali
Ibanga elivame ukusetshenziswa le-chromium-nickel-titanium insimbi engagqwali yi-1Cr18Ni9ti, enokumelana nokugqwala okuhle, ukumelana nokuguguleka nokumelana nokushisa. Ifanele isitimu kanye nezinye imidiya enezinga lokushisa elingu-t≤600°C kanye nomfutho ojwayelekile we-PN≤6.4MPa, futhi isetshenziselwa amavalvu embulunga, amabhola amabhola, njll.
9. Nitriding steel
Ibanga elivame ukusetshenziswa lensimbi ye-nitriding ngu-38CrMoAlA, enokumelana nokugqwala okuhle kanye nokumelana nokuklwebheka ngemva kokwelashwa kokungcwatshwa kwe-carburizing. Ivame ukusetshenziswa kuma-valve esango lesiteshi samandla anezinga lokushisa elingu-t≤540℃kanye nengcindezi ye-PN≤10MPa.
10. Boronizing
I-Boronizing icubungula ngokuqondile indawo yokuvala kusuka kumzimba we-valve noma umzimba we-disc, bese yenza ukwelashwa kwe-boronizing surface. Indawo yokuvala inokumelana okuhle nokugqokwa. Okwe-valve ye-blowdown yesiteshi samandla.
Lapho i-valve isetshenziswa, izinto okufanele zibhekwe yilezi ezilandelayo:
1. Ukusebenza kokuvalwa kwe-valve kufanele kuhlolwe ukuze kuqinisekiswe ukusebenza kwayo.
2. Hlola ukuthi indawo yokuvala yevalvu igugile, bese uyilungisa noma uyishintshe ngokwesimo.
Isikhathi sokuthumela: Jan-04-2023
