Ukwethulwa kwezinto zokuvala ama-valve—i-TWS Valve

Izinto zokuvala amavalvu ziyingxenye ebalulekile yokuvala amavalvu. Yiziphi izinto zokuvala amavalvu? Siyazi ukuthi izinto zokuvala amavalvu zihlukaniswe ngezigaba ezimbili: insimbi kanye nengeyona insimbi. Okulandelayo yisingeniso esifushane sezimo zokusetshenziswa kwezinto zokuvala ezahlukahlukene, kanye nezinhlobo zamavalvu ezisetshenziswa njalo.

1. Irabha yokwenziwa

Izakhiwo eziphelele zerabha yokwenziwa njengokumelana namafutha, ukumelana nokushisa kanye nokumelana nokugqwala zingcono kunezamarabha emvelo. Ngokuvamile, izinga lokushisa lokusetshenziswa kwerabha yokwenziwa lingu-t≤150℃, kanti izinga lokushisa lerabha emvelo lingu-t≤60℃. Irabha isetshenziselwa ukuvala ama-globe valve,i-valve yesango ehleli ngerabha, amavalvu e-diaphragm,rivalvu yebhabhathane ehlezi phansi, ri-valve yokuhlola i-swing ehleli phansi e-ubber (ama-valve okuhlola), amavalvu okuncinza kanye namanye amavalvu anomfutho ojwayelekile we-PN≤1MPa.

2. Inayiloni

Inayiloni inezici zokulingana okuncane kokungqubuzana kanye nokumelana okuhle nokugqwala. Inayiloni isetshenziswa kakhulu kuma-valve ebhola kanye nama-valve e-globe anezinga lokushisa elingu-t≤90℃ kanye nengcindezi ejwayelekile engu-PN≤32MPa.

3. I-PTFE

I-PTFE isetshenziswa kakhulu kuma-valve omhlaba,amavalvu esango, amavalvu ebhola, njll. anokushisa okungu-t≤232℃ kanye nokucindezela okujwayelekile okungu-PN≤6.4MPa.

4. Insimbi ephothiwe

Insimbi ephothiwe isetshenziselwaivalvu yesango, ivalvu yembulunga, ivalvu yepulaki, njll. yokushisa okungu-t≤100℃, ingcindezi ejwayelekile engu-PN≤1.6MPa, igesi kanye namafutha.

5. Ingxubevange yeBabbitt

I-alloy ye-Babbitt isetshenziselwa i-ammonia globe valve enezinga lokushisa elingu-t-70~150℃ kanye nengcindezi ejwayelekile engu-PN≤2.5MPa.

6. Ingxubevange yethusi

Izinto ezivamile ze-alloy zethusi yi-6-6-3 tin bronze kanye ne-58-2-2 manganese brass. I-alloy yethusi inokumelana okuhle nokuguguleka futhi ifanelekela amanzi kanye nomusi onezinga lokushisa elingu-t≤200℃ kanye nengcindezi ejwayelekile PN≤1.6MPa. Ivame ukusetshenziswa kuamavalvu esango, amavalvu embulunga,ama-valve okuhlola, amavalvu epulaki, njll.

7. Insimbi engagqwali ye-Chrome

Amazinga avame ukusetshenziswa ensimbi engagqwali ye-chromium yi-2Cr13 kanye ne-3Cr13, acinyiwe futhi aqiniswa, futhi anokumelana okuhle nokugqwala. Ivame ukusetshenziswa kuma-valve ezinto ezinjengamanzi, umusi kanye ne-petroleum enezinga lokushisa elingu-t≤450℃ kanye nengcindezi ejwayelekile engu-PN≤32MPa.

8. Insimbi engagqwali ye-Chromium-nickel-titanium

Izinga elivame ukusetshenziswa lensimbi engagqwali ye-chromium-nickel-titanium yi-1Cr18Ni9ti, enokumelana okuhle nokugqwala, ukumelana nokuguguleka kanye nokumelana nokushisa. Ifanele umusi, i-nitric acid kanye nezinye izinto ezithinta izinga lokushisa elingu-t≤600℃ kanye nengcindezi ejwayelekile ye-PN≤6.4MPa, esetshenziselwa i-globe valve, i-ball valve, njll.

9. Insimbi ene-nitride

Izinga elivame ukusetshenziswa lensimbi ene-nitride yi-38CrMoAlA, enokumelana okuhle nokugqwala kanye nokumelana nokuklwebheka ngemva kokwelashwa nge-carburizing. Ivame ukusetshenziswa ku-valve yesango lesiteshi sikagesi enezinga lokushisa elingu-t≤540℃ kanye nengcindezi ejwayelekile engu-PN≤10MPa.

10. Ukuzinza kwe-Boronizing

I-Boronizing icubungula ngqo ubuso bokuvala kusukela ezintweni zomzimba we-valve noma umzimba wediski, bese iphatha ubuso be-boronizing, ubuso bokuvala bunokumelana okuhle nokuguguleka. Isetshenziswa ku-valve yokubhoboza esiteshini samandla.