Ma flange akhungu ndi gawo lofunikira pamapaipi, omwe nthawi zambiri amagwiritsidwa ntchito kutseka mapaipi kapena zotengera pokonza, kuyang'anira, kapena kuyeretsa. Pofuna kuonetsetsa kuti mawonekedwe, chitetezo ndi kusinthasintha kwa ma flanges akhungu, International Organisation for Standardization (ISO) ndi mabungwe ena oyenerera apereka miyeso yapadziko lonse lapansi yomwe ikukhudza mbali zonse za mapangidwe, kupanga ndi kugwiritsa ntchito ma flange akhungu.
Nayi milingo yayikulu yapadziko lonse lapansi yokhudzana ndi ma blind flanges ndi zomwe zili mkati mwake:
ASME B16.5
- Mapaipi a mapaipi - Gawo 1: Zitsulo zazitsulo zamafakitale ndi ntchito wamba: Mulingo uwu umakwirira mitundu yosiyanasiyana ya ma flanges, kuphatikiza ma flanges akhungu. Izi zikuphatikiza kukula, kulolerana, mawonekedwe olumikizana pamwamba ndi zofunikira za flange zamtundu wakhungu.
ASME B16.48
-2018 - Line Blanks: Muyezo wofalitsidwa ndi American Society of Mechanical Engineers (ASME) womwe umakhudza makamaka ma flange akhungu, omwe nthawi zambiri amatchedwa "mizere yopanda kanthu." Muyezo uwu umanena za kukula, zida, kulolerana ndi zofunikira zoyezera ma flanges akhungu kuti zitsimikizire kudalirika kwawo pamapaipi amakampani ndi ntchito wamba.
EN 1092-1
-2018 - Flanges ndi maulumikizidwe awo - Ma flanges ozungulira a mapaipi, ma valve, zopangira ndi zowonjezera, PN yosankhidwa - Gawo 1: Zitsulo zachitsulo: Uwu ndi muyeso wa ku Ulaya womwe umakhudza mapangidwe, miyeso, zipangizo ndi Zolemba Zolemba. Ndi oyenera machitidwe mapaipi ku France, Germany, Italy ndi mayiko ena ku Ulaya.
Chithunzi cha JIS B2220
-2012 - Mapaipi azitsulo achitsulo: The Japanese Industrial Standard (JIS) imatchula miyeso, kulolerana ndi zofunikira zakuthupi za ma flange akhungu kuti akwaniritse zosowa zamapaipi aku Japan.
Mulingo uliwonse wapadziko lonse lapansi uli ndi izi:
Makulidwe ndi kulolerana: Muyezo umatanthawuza kukula kwa ma flange akhungu ndi zofunikira zololera kuti zitsimikizire kusinthana pakati pa ma flange akhungu opangidwa ndi opanga osiyanasiyana. Izi zimathandiza kuonetsetsa kusasinthasintha ndi kusinthasintha kwa machitidwe a mapaipi.
Zofunika zakuthupi: Muyezo uliwonse umatchula zinthu zomwe zimafunikira kupanga ma flange akhungu, nthawi zambiri chitsulo cha carbon, chitsulo chosapanga dzimbiri, chitsulo cha aloyi, ndi zina zotero. mphamvu zokwanira ndi kukana dzimbiri.
Njira yopanga: Miyezo nthawi zambiri imaphatikizapo njira yopangira ma flanges akhungu, kuphatikiza kukonza zinthu, kupanga, kuwotcherera ndi kutentha. Njira zopangira izi zimatsimikizira ubwino ndi ntchito za ma flange akhungu.
Kuyesa ndi kuyang'anira: Mulingo uliwonse umaphatikizanso kuyezetsa ndi kuyang'anira ma flange akhungu kuti atsimikizire kuti amatha kugwira ntchito motetezeka komanso modalirika pakugwiritsa ntchito kwenikweni. Mayesowa nthawi zambiri amaphatikiza kuyesa kukakamiza, kuyang'anira weld, komanso kuyesa magwiridwe antchito.
Miyezo yapadziko lonse lapansi imatsimikizira kusasinthika kwapadziko lonse lapansi komanso kusinthasintha kwa ma blind flanges. Kaya m'makampani amafuta ndi gasi, mankhwala, zoperekera madzi kapena magawo ena azigawo zamafakitale, miyezo imeneyi imagwira ntchito yofunika kwambiri pakuwonetsetsa chitetezo, kudalirika komanso magwiridwe antchito a kulumikizana kwa mapaipi. Chifukwa chake, posankha ndikugwiritsa ntchito ma flanges akhungu, ndikofunikira kumvetsetsa ndikutsata miyezo yapadziko lonse lapansi kuti muwonetsetse kugwira ntchito mokhazikika komanso chitetezo cha payipi.
Nthawi yotumiza: Sep-28-2023
