Ngati kukhulupirika ndi chitetezo cha dongosolo sizingakambiranedwe pansi pa kupsinjika kwakukulu, kusankha valavu kumakhala chisankho chofunikira kwambiri paukadaulo.Ma Vavu a Mpira Wopanikizika KwambiriZapangidwa mwapadera kuti zigwire ntchito pomwe ma valve wamba angalephere. Bukuli likufotokoza zomwe zimasiyanitsa zigawo zolimba izi, kapangidwe kake kofunikira, komanso momwe mungasankhire yoyenera pa ntchito zanu zovuta kwambiri.
Kodi Valavu ya Mpira Yopanikizika Kwambiri ndi Chiyani?
A Vavu ya Mpira Wothamanga Kwambirindi valavu yapadera yozungulira kotala yomwe idapangidwa kuti ipatule ndikulamulira kuyenda kwa zinthu zamphamvu m'makina omwe nthawi zambiri amagwira ntchito kuposa 10,000 PSI (690 bar). Mosiyana ndi mavalavu wamba a mpira, amadziwika ndi kapangidwe kake kolemera, njira zotsekera zapamwamba, ndi zipangizo zomwe zimatha kupirira kupsinjika kwakukulu kwa makina ndi kutentha popanda kuwononga magwiridwe antchito kapena chitetezo.
Zinthu Zofunika Kwambiri Zopangira Ma Valves a Mpira Wopanikizika Kwambiri
Kutha kuthana ndi kupsinjika kwakukulu si nkhani ya mwayi; ndi zotsatira za ukadaulo wochita zinthu mwadala komanso molondola. Nazi zinthu zofunika kwambiri pakupanga:
Thupi Lolimbikitsidwa ndi Kapangidwe Kolimba:
Ma valve amenewa nthawi zambiri amakhala ndi thupi laling'ono, lopangidwa ndi zinthu zolimba kwambiri monga chitsulo chosapanga dzimbiri (SS304, SS316), chitsulo chosapanga dzimbiri, kapena chitsulo cha chromium-molybdenum (A105). Kupangira kumapereka kapangidwe kabwino kwambiri ka tirigu, komwe kumawonjezera mphamvu ya makina a valavu komanso kukana kugwedezeka.
Kapangidwe ka Tsinde Lopanikizika Kwambiri:
Tsinde limalimbikitsidwa kuti lisatuluke pansi pa kukakamizidwa. Tsinde lolimba, lomwe nthawi zambiri limakhala ndi kapangidwe kolimba, limaonetsetsa kuti kukakamizidwa kwamkati sikungakakamize tsinde kutuluka m'thupi la valavu, chinthu chofunikira kwambiri chotetezera.
Machitidwe Osindikizira Apamwamba:
Uwu ndi mtima wa valavu ya mpira yothamanga kwambiri.
• Mipando Yotsika Kwambiri:Mipando yopangidwa ndi PTFE yolimbikitsidwa (RPTFE), PEEK (Polyether Ether Ketone), kapena chitsulo imagwiritsidwa ntchito. Zipangizozi zimasunga umphumphu wawo wotseka ndipo zimakhala ndi kukangana kochepa panthawi yogwira ntchito, ngakhale zikagwiritsidwa ntchito molimbika kwambiri.
• Mipando Yodzaza ndi Masika:Mapangidwe ambiri amphamvu kwambiri amakhala ndi mipando yokhala ndi masipiringi. Masipiringi amagwiritsa ntchito mphamvu yosalekeza yonyamula katundu pampando, kuonetsetsa kuti mpirawo umakhala wolimba pa mphamvu zochepa komanso zapamwamba, komanso umathandiza kuti uwonongeke pakapita nthawi.
Doko Lochepetsedwa poyerekeza ndi Doko Lonse:
Ngakhale ma valve okhala ndi ma port onse amapereka mphamvu yotsika, ma valve okhala ndi mphamvu yotsika nthawi zambiri amagwiritsa ntchito mapangidwe a ma port ochepa (kapena ma port wamba). Khoma lolimba lozungulira doko laling'ono limawonjezera mphamvu ya valavu yosunga mphamvu yokwanira, zomwe ndizofunikira kwambiri kuti pakhale chitetezo chokwanira.
Kugwiritsa Ntchito Ma Valves Olimbitsa Thupi Kwambiri
Ma valve awa ndi ofunikira kwambiri m'mafakitale komwe kulephera kwa dongosolo si njira ina:
•Mafuta ndi Gasi:Kuwongolera mitsinje ya madzi, zomangira mitengo ya Khirisimasi, mayunitsi a hydraulic fracturing (fracking), ndi mizere yotumizira mpweya wothamanga kwambiri.
•Kupanga Mphamvu:Mizere ikuluikulu ya nthunzi, makina operekera madzi, ndi mabwalo ena ofunikira othamanga/kutentha kwambiri m'mafakitale otentha ndi a nyukiliya.
•Mankhwala ndi Petrochemical:Kusamalira ma catalyst amphamvu, ma reactor amphamvu kwambiri, ndi makina opangira jakisoni.
•Kudula Madzi:Kulamulira madzi amphamvu kwambiri (mpaka 90,000 PSI) omwe amagwiritsidwa ntchito m'mafakitale odulira.
•Zipangizo Zoyesera Zamphamvu Kwambiri:Pofuna kutsimikizira kukhulupirika kwa zinthu zina monga mapaipi, zolumikizira, ndi ma valve.
Momwe Mungasankhire Valavu Yabwino Ya Mpira Wopanikizika Kwambiri
Kusankha valavu yoyenera ndi njira yosiyana siyana. Ganizirani zinthu izi:
1. Kuyeza kwa Kupanikizika (PSI/Bar):
Onetsetsani kuti kuthamanga kwa ntchito kwakukulu (WP) kwa valavu ndi kupanikizika (monga ANSI Class 1500, 2500, 4500) kwapitirira kuthamanga kwa ntchito kwakukulu kwa dongosolo lanu, kuphatikizapo kuthamanga kulikonse komwe kungachitike.
2. Kutentha Kwambiri:
Onetsetsani kuti mpando ndi zinthu zomangira zikugwirizana ndi kutentha kochepa komanso kwakukulu kwa makina anu.
3. Kugwirizana kwa Zinthu:
Thupi la valavu, chodulira, ndi zomangira ziyenera kugwirizana ndi zolumikizira (zamadzimadzi kapena mpweya) kuti zisawonongeke ndi dzimbiri. Ganizirani zinthu monga ma chloride, kuchuluka kwa H2S, ndi kuchuluka kwa pH.
4. Malumikizano Omaliza:
Sankhani kuchokera ku zolumikizira zolimba monga ulusi (NPT), socket weld, kapena butt weld, kuonetsetsa kuti zikugwirizana ndi nthawi ya chitoliro ndi zinthu zake.
5. Kapangidwe Kotetezeka Pamoto:
Pakugwiritsa ntchito mafuta ndi gasi, ziphaso monga API 607/API 6FA zimatsimikiza kuti valavuyo idzakhala ndi zolumikizira pakagwa moto.
6. Kuchitapo kanthu:
Pa makina odzipangira okha, onetsetsani kuti valavuyo yapangidwa kuti igwirizane ndi ma actuator a pneumatic kapena amagetsi omwe amatha kupanga torque yokwanira kuti igwire ntchito pansi pa kupanikizika kwathunthu kwa dongosolo.
N’chifukwa Chiyani Muyenera Kugwirizana ndi Wopanga Katswiri?
Ku NSW Valve, timamvetsetsa kuti valavu ya mpira wothamanga kwambiri si chinthu chokhacho; ndi kudzipereka ku chitetezo ndi ntchito yabwino kwambiri. Mavalavu athu apangidwa ndi cholinga chachikulu pa:
•Kupanga ndi Kupanga Machining Mwanzeru kuti pakhale umphumphu wosayerekezeka.
•Ma Protocol Oyesera Okhwima, kuphatikizapo mayeso a chipolopolo champhamvu komanso mipando, kuonetsetsa kuti valavu iliyonse ikugwira ntchito monga momwe zafotokozedwera.
•Malangizo a Akatswiri Osankha Zinthu kuti agwirizane ndi malo anu ogwirira ntchito.
Wokonzeka kutchula kulondolayankho la kuthamanga kwambiripa polojekiti yanu?Lumikizanani ndi gulu lathu la mainjiniya lerokuti mupeze upangiri waumwini ndi mapepala aukadaulo.
Nthawi yotumizira: Ogasiti-14-2025