Ukwethulwa kwezinto zokuvala ama-valve—i-TWS Valve

Izinto zokuvala i-valve ziyingxenye ebalulekile yokuvala ama-valve. Yiziphi izinto zokuvala ama-valve? Siyazi ukuthi izinto zendandatho yokuvalwa kwe-valve zihlukaniswe izigaba ezimbili: zensimbi nezingezona ezensimbi. Okulandelayo isingeniso esifushane semibandela yokusetshenziswa kwezinto ezihlukahlukene zokuvala uphawu, kanye nezinhlobo zama-valve ezivame ukusetshenziswa.

1. Irabha yokwenziwa

Izakhiwo eziphelele zenjoloba yokwenziwa ezifana nokumelana nowoyela, ukumelana nezinga lokushisa nokumelana nokugqwala zingcono kunezerabha yemvelo. Ngokuvamile, izinga lokushisa lokusetshenziswa kwenjoloba yokwenziwa ngu-t≤150℃, futhi izinga lokushisa lenjoloba yemvelo lingu-t≤60℃.Irabha isetshenziselwa ukuvala ama-valve embulunga,i-valve yesango ehlezi irabhaama-valve e-diaphragm,ri-ubber ehlezi uvemvane valve, rivalve yokuhlola i-ubber ehlezi (hlola ama-valve), ama-valve ncinza namanye ama-valve ane-pressure yegama elithi PN≤1MPa.

2. Inayiloni

Inayiloni inezici ze-coefficient encane yokungqubuzana kanye nokumelana nokugqwala okuhle. Inayiloni isetshenziswa kakhulu kumavalvu ebhola namavalvu embulunga anezinga lokushisa elingu-t≤90℃ kanye nengcindezi yegama elithi PN≤32MPa.

3. PTFE

I-PTFE isetshenziswa kakhulu kumavalvu embulunga,ama-valve esango, ama-valve ebhola, njll. ngezinga lokushisa elingu-t≤232℃ kanye nokucindezela okuzisholo okungu-PN≤6.4MPa.

4. Insimbi

I-cast iron isetshenziselwai-valve yesango, i-globe valve, plug valve, njll. ngezinga lokushisa elingu-t≤100℃, ukucindezela okuzisholo okungu-PN≤1.6MPa, igesi namafutha.

5. Ingxubevange ye-Babbitt

Ingxubevange ye-Babbitt isetshenziselwa ivalve yeglobu ye-ammonia enezinga lokushisa elingu-t-70~150℃ kanye nengcindezi yegama elithi PN≤2.5MPa.

6. Ingxube yethusi

Izinto ezijwayelekile zama-alloys ethusi ziyi-6-6-3 tin bronze kanye ne-58-2-2 yethusi ye-manganese. Ingxubevange yethusi inokumelana okuhle nokugqokwa futhi ifanele amanzi nesitimu ngezinga lokushisa elingu-t≤200℃ kanye nengcindezi yegama elithi PN≤1.6MPa. Ivame ukusetshenziswa kuama-valve esango, ama-valve embulunga,hlola ama-valve, 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 kuma-valve wemidiya efana namanzi, isitimu kanye ne-petroleum enezinga lokushisa elingu-t≤450℃ kanye nengcindezi yegama elithi PN≤32MPa.

8. I-Chromium-nickel-titanium insimbi engagqwali

Ibanga elivame ukusetshenziswa le-chromium-nickel-titanium insimbi engagqwali yi-1Cr18Ni9ti, enokumelana nokugqwala okuhle, ukumelana nokuguguleka nokumelana nokushisa. Ilungele umusi, i-nitric acid nezinye imidiya enezinga lokushisa elingu-t≤600℃ kanye nokucindezela okuzisholo okungu-PN≤6.4MPa, okusetshenziselwa i-valve yeglobhu, i-valve yebhola, njll.

9. Insimbi ene-nitrided

Ibanga elivame ukusetshenziswa lensimbi ye-nitrided yi-38CrMoAlA, enokumelana nokugqwala okuhle kanye nokumelana nokuklwebheka ngemva kokwelashwa kokungcwatshwa kwe-carburizing. Ivamise ukusetshenziswa esiteshini samandla i-valve yesango elinokushisa okungu-t≤540℃ kanye nengcindezi ye-PN≤10MPa.

10. Boronizing

I-Boronizing icubungula ngokuqondile indawo yokuvala kusuka kumzimba we-valve noma umzimba we-disc, bese iqhuba ukwelashwa kwe-boronizing surface, indawo yokuvala inokumelana okuhle nokugqokwa. Isetshenziswa ku-valve ye-blowdown yesiteshi samandla.