Zofotokozera Zathupi
Choyamba, flange iyenera kugwirizana ndi chitoliro kapena zipangizo zomwe zimapangidwira.Mawonekedwe akuthupi a flanges a mapaipi amaphatikiza miyeso ndi mawonekedwe apangidwe.
Flange Dimensions
Miyeso yakuthupi iyenera kufotokozedwa kuti kukula kwa flanges kukhale koyenera.
M'mimba mwake (OD) ndi mtunda wapakati pa mbali ziwiri zotsutsana za nkhope ya flange.
Makulidwe amatanthauza makulidwe a mkombero wakunja womangirira, ndipo sikuphatikiza gawo la flange lomwe limagwira chitoliro.
Bolt bwalo la bolt ndi kutalika kuchokera pakati pa bowolo mpaka pakati pa dzenje lotsutsana.
Kukula kwa chitoliro ndi kukula kwa chitoliro cha chitoliro, chomwe chimapangidwa motsatira miyezo yovomerezeka.Nthawi zambiri amatchulidwa ndi manambala awiri omwe sali ofanana, kukula kwa chitoliro (NPS) ndi ndondomeko (SCH).
Kukula kodziwikiratu ndi kukula kwamkati kwa cholumikizira cha flange.Popanga ndi kuyitanitsa mtundu uliwonse wa cholumikizira chitoliro, ndikofunikira kuti mufanane ndi kukula kwa chidutswacho ndi kukula kwa chitoliro cha mating.
Mawonekedwe a Flange
Nkhope za Flange zimatha kupangidwa kumitundu yambiri yamitundu yotengera zomwe zimafunikira pamapangidwe.Zitsanzo zina ndi izi:
Lathyathyathya
Nkhope yokwezeka (RF)
Mtundu wa mphete (RTJ)
O-ring groove
Mitundu ya Pipe Flanges
Mapaipi flanges akhoza kugawidwa m'magulu asanu ndi atatu kutengera mapangidwe.Mitundu iyi ndi yakhungu, lap joint, orifice, reduction, slip-on, socket-weld, ulusi, ndi weld khosi.
Ma flanges akhungu ndi mbale zozungulira zopanda pakati zomwe zimagwiritsidwa ntchito kutseka malekezero a mapaipi, ma valve, kapena zida.Amathandizira kulola kuti mzere ukhale wosavuta mukangosindikizidwa.Angagwiritsidwenso ntchito kuyesa kuthamanga kwa kutuluka.Ma flange akhungu amapangidwa kuti agwirizane ndi mipope yokhazikika mumiyeso yonse pamlingo wothamanga kwambiri kuposa mitundu ina ya flange.
Mapaipi olowa m'miyendo amagwiritsidwa ntchito pamipope yolumikizidwa ndi chitoliro chopukutidwa kapena ndi nsonga zapakhosi.Amatha kuzungulira chitoliro kuti alole kulolerana kosavuta ndi kusonkhanitsa mabowo a bolt ngakhale ma welds atatha.Chifukwa cha izi, ma flanges olowa m'miyendo amagwiritsidwa ntchito pamakina omwe amafunikira kusokoneza pafupipafupi kwa ma flanges ndi chitoliro.Amafanana ndi ma flanges opendekera, koma amakhala ndi utali wopindika pamphepete ndi kumaso kuti agwirizane ndi nsonga yolumikizana.Kupanikizika kwa ma lap joint flanges ndi otsika, koma ndi apamwamba kuposa ma slip-on flanges.
Ma flanges amapangidwa kuti azitsetsereka kumapeto kwa mapaipi kenako ndi kuwotcherera m'malo mwake.Amapereka unsembe wosavuta komanso wotsika mtengo ndipo ndi abwino kwa ntchito zochepetsera zotsika.
Socket weld flanges ndi yabwino kwa mapaipi ang'onoang'ono, othamanga kwambiri.Mapangidwe awo ndi ofanana ndi a slip-on flanges, koma mapangidwe a thumba lamkati amalola kuti pakhale phokoso losalala komanso kuyenda bwino kwamadzimadzi.Pamene welded mkati, flanges amenewa alinso kutopa mphamvu 50% kuposa awiri welded slip-pa flanges.
Ma flanges opangidwa ndi ulusi ndi mitundu yapadera ya flange ya chitoliro yomwe imatha kumangirizidwa ku chitoliro popanda kuwotcherera.Amapangidwa mu bore kuti agwirizane ndi ulusi wakunja pa chitoliro ndipo amapangidwa kuti apange chisindikizo pakati pa flange ndi chitoliro.Ma welds osindikizira amathanso kugwiritsidwa ntchito limodzi ndi maulalo a ulusi kuti awonjezere kulimbitsa ndi kusindikiza.Amagwiritsidwa ntchito bwino pamapaipi ang'onoang'ono ndi kupanikizika kochepa, ndipo ayenera kupeŵedwa muzogwiritsira ntchito ndi katundu waukulu ndi ma torque apamwamba.
Kuwotcherera khosi flanges ali ndi tapered likulu lalitali ndipo amagwiritsidwa ntchito pa high pressure.The tapered hub imasamutsa kupsinjika kuchokera ku flange kupita ku chitoliro chokha ndipo imapereka kulimbikitsa mphamvu zomwe zimalimbana ndi mbale.
Nthawi yotumiza: Oct-21-2021