Ib tug flange yog ib tug protruding ntug los yog ntug uas yog siv los txuas ob lub kav dej, li qub, los yog lwm yam khoom siv ua ke. Nws feem ntau yog ua los ntawm cov hlau thiab yog tsim los muab kev ruaj ntseg thiab kev sib txuas-pov thawj. Flanges feem ntau yog siv hauv cov kav dej kom tso cai rau kev sib dhos yooj yim thiab tshem tawm cov khoom siv, nrog rau muab kev nkag mus rau kev tshuaj xyuas, ntxuav, thiab tu. Lawv tuaj nyob rau hauv ntau yam duab thiab ntau thiab tsawg, thiab tuaj yeem hloov kho kom haum rau cov ntawv thov tshwj xeeb. Flanges yog ib qho tseem ceeb hauv ntau cov txheej txheem kev lag luam, suav nrog roj thiab roj, chemical ua, tsim hluav taws xob, thiab kev kho dej.
Flanges feem ntau yog txuas mus rau qhov kawg ntawm cov kav dej lossis cov cuab yeej siv bolts lossis vuam. Lawv tau tsim los tiv thaiv kev kub ntxhov thiab kub, thiab feem ntau yog ua los ntawm cov ntaub ntawv xws li carbon steel, stainless hlau, los yog hlau alloy. Flanges tseem tuaj yeem raug coated lossis lined nrog cov ntaub ntawv xws li roj hmab lossis yas los muab kev tiv thaiv ntxiv tiv thaiv corrosion thiab hnav. Ntxiv rau lawv siv hauv cov kav dej, flanges kuj tseem siv tau rau ntau yam kev siv, suav nrog hauv kev lag luam automotive, aerospace kev lag luam, thiab kev tsim kho kev lag luam.
Hom Flanges
Muaj ntau ntau hom flanges, txhua tus nrog nws tus kheej tsim thiab lub hom phiaj. Feem ntau hom flanges muaj xws li weld caj dab flanges, plam-on flanges, qhov (socket) weld flanges, lap joint flanges, threaded flanges, thiab dig muag flanges. Weld caj dab flanges yog tsim los welded mus rau qhov kawg ntawm cov yeeb nkab los yog haum, thiab feem ntau siv rau hauv cov ntawv thov siab. Slip-on flanges yog tsim los xaub hla qhov kawg ntawm cov yeeb nkab lossis haum, thiab feem ntau yog siv rau hauv cov ntawv thov uas tsis tshua muaj siab. Lub qhov (socket) weld flanges zoo ib yam li lub caj dab weld flanges, tab sis muaj ib tug me me bore thiab yog tsim los welded ncaj qha mus rau cov yeeb nkab. Lap sib koom flanges yog siv nyob rau hauv daim ntawv thov uas nquag dismantling yuav tsum tau, raws li lawv tuaj yeem yooj yim sib dhos thiab bolted ua ke. Threaded flanges muaj xov nyob rau sab hauv thiab sab nraud ntawm flange, cia lawv muab ntsia hlau rau hauv cov yeeb nkab lossis haum. Qhov muag tsis pom flanges yog siv los kaw qhov kawg ntawm cov yeeb nkab lossis fittings, thiab feem ntau siv rau hauv cov ntawv thov uas yuav muaj kev nthuav dav yav tom ntej.
Ntxiv rau cov hom flanges no, kuj tseem muaj cov flanges tshwj xeeb uas tsim los rau kev siv tshwj xeeb. Piv txwv li, orifice flanges yog siv los ntsuas qhov ntws ntawm cov kua hauv cov kav dej, thaum spectacle blinds yog siv los cais cov ntu ntawm cov kav dej rau kev kho lossis kho. Txawm hais tias hom flange raug siv, Nws yog ib qho tseem ceeb los xyuas kom meej tias nws zoo sib xws rau cov yeeb nkab lossis haum nws tau txuas nrog txhawm rau txhawm rau xyuas kom muaj kev ruaj ntseg thiab xau-pov thawj kev sib txuas.
Flange Materials thiab Standards
Flanges feem ntau yog tsim los ntawm ntau yam khoom siv, suav nrog carbon steel, stainless hlau, hlau alloy, thiab lwm yam hlau. Qhov kev xaiv ntawm cov khoom yog nyob ntawm qhov kev xav tau tshwj xeeb ntawm daim ntawv thov, suav nrog rau yam xws li siab, kub, corrosion kuj, thiab nqi. Ntxiv rau cov khoom siv hauv paus, flanges tseem tuaj yeem coated lossis lined nrog cov ntaub ntawv xws li roj hmab lossis yas los muab kev tiv thaiv ntxiv tiv thaiv corrosion thiab hnav. Kev xaiv cov khoom siv rau flange feem ntau yog tswj hwm los ntawm cov qauv kev lag luam xws li ASME B16.5 rau cov yeeb nkab flanges thiab flanged fittings., uas qhia qhov ntev, kam rau ua, cov ntaub ntawv, thiab kev soj ntsuam cov cai rau flanges siv hauv cov kav dej.
Ntxiv rau cov qauv kev lag luam, tseem muaj cov qauv thoob ntiaj teb uas tswj kev tsim thiab tsim cov flanges. Piv txwv li, Lub koom haum International rau Standardization (ISO) tau tsim cov qauv xws li ISO 7005-1 rau hlau flanges thiab ISO 7005-2 rau cam khwb cia hlau flanges. Cov qauv no muab cov txheej txheem rau kev tsim, qhov ntev, cov ntaub ntawv, thiab kuaj cov kev cai rau flanges siv nyob rau hauv ntau yam lag luam thoob ntiaj teb. Los ntawm kev ua raws li cov qauv no, cov tuam ntxhab tuaj yeem xyuas kom meej tias lawv cov flanges ua tau raws li qhov tsim nyog rau kev nyab xeeb, kev ua tau zoo, thiab kev ntseeg tau.
Flange Assembly thiab Installation
Flange sib dhos thiab kev teeb tsa yog ib kauj ruam tseem ceeb hauv kev ua kom muaj kev ua haujlwm zoo ntawm cov kav dej.. Thaum sib dhos flange txuas, Nws yog ib qho tseem ceeb kom ntseeg tau tias lub ntsej muag flange yog huv si thiab tsis muaj qhov tsis xws luag lossis puas. Qhov no tuaj yeem ua tiav los ntawm kev siv txhuam txhuam los yog txhuam txhuam kom tshem tawm cov av, xeb, los yog ntsuas los ntawm qhov chaw mating. Thaum lub ntsej muag huv si, Nws yog ib qho tseem ceeb los xyuas kom meej tias lub gasket yog zoo raws li cov ntsia liaj qhov rooj qhov nyob rau hauv lub flange ntsej muag.. Qhov no yuav pab kom muaj kev sib khi kom zoo thaum cov bolts tau nruj.
Thaum txhim kho flange kev twb kev txuas, Nws yog ib qho tseem ceeb uas yuav tsum tau siv hom thiab qhov loj ntawm bolts thiab ceev. Cov bolts yuav tsum tau nruj nruj nyob rau hauv ib tug ib ntus thiab rau ib tug tshwj xeeb torque tus nqi thiaj li yuav xyuas kom meej tias lub gasket yog compressed kom zoo thiab qhov kev twb kev txuas yog leak-proof.. Nws tseem yog ib qho tseem ceeb los xyuas kom meej tias cov bolts tau nruj nruj kom tiv thaiv kev thauj khoom tsis sib xws ntawm lub gasket thiab muaj peev xwm to.. Ntxiv nrog rau cov txheej txheem bolt nruj, Nws tseem yog ib qho tseem ceeb los xyuas kom meej tias lub flange ntsej muag tau zoo sib xws thiab sib npaug rau ib leeg txhawm rau tiv thaiv kev cuam tshuam los yog kev puas tsuaj rau lub gasket..
Kev siv Flange
Flanges yog siv nyob rau hauv ntau yam kev siv nyob rau hauv ntau yam kev lag luam. Hauv kev lag luam roj thiab roj, flanges yog siv los txuas cov kav dej, li qub, thiab lwm yam khoom siv hauv refineries, petrochemical cov nroj tsuag, thiab offshore drilling platforms. Hauv kev lag luam chemical, flanges yog siv los txuas cov hlab ntsha, reactors, twj, thiab lwm yam khoom siv hauv cov nroj tsuag tshuaj thiab chaw tsim khoom. Hauv kev lag luam tsim hluav taws xob, flanges yog siv los txuas chav turbines, boilers, kub exchangers, thiab lwm yam khoom siv hauv cov chaw tsim hluav taws xob thiab cov chaw siv hluav taws xob. Hauv kev lag luam kho dej, flanges yog siv los txuas cov kav dej, twj, li qub, thiab lwm yam khoom siv hauv cov chaw kho dej thiab cov tshuab xa tawm.
Ntxiv rau cov ntawv thov kev lag luam no, flanges kuj tseem siv tau rau ntau yam kev lag luam thiab kev siv. Piv txwv li, lawv tau siv nyob rau hauv kev lag luam automotive los txuas cov pa hluav taws xob thiab cov khoom siv cav, hauv kev lag luam aerospace los txuas cov roj kab thiab hydraulic systems, thiab nyob rau hauv kev tsim kho kev lag luam los txuas HVAC systems thiab kav dej fixtures. Tsis hais txog ntawm daim ntawv thov tshwj xeeb, Nws yog ib qho tseem ceeb los xyuas kom meej tias hom flange raug xaiv rau cov kev cai tshwj xeeb ntawm daim ntawv thov txhawm rau txhawm rau xyuas kom muaj kev ruaj ntseg thiab xau-pov thawj kev sib txuas.
Common Flange Teeb meem thiab kev daws teeb meem
Txawm tias lawv qhov tseem ceeb hauv cov kav dej, flanges tuaj yeem ntsib ntau yam teeb meem uas tuaj yeem cuam tshuam lawv qhov kev ua tau zoo thiab kev ntseeg tau. Ib qho teeb meem tshwm sim yog kev xau ntawm qhov sib txuas flange, uas tuaj yeem tshwm sim los ntawm yam xws li kev xaiv gasket tsis raug lossis kev teeb tsa, uneven bolt zawm, los yog kev puas tsuaj rau lub ntsej muag flange. Hais txog qhov teeb meem no, Nws yog ib qho tseem ceeb uas yuav tau ua tib zoo tshuaj xyuas qhov flange kev twb kev txuas rau tej yam tshwm sim ntawm to thiab ua kom kho raws li qhov tsim nyog. Qhov no yuav suav nrog kev hloov lub gasket nrog cov khoom tsim nyog lossis tsim, re-tightening bolts nyob rau hauv ib qho kev sib lawv liag thiab tus nqi torque, los yog kho tej kev puas tsuaj rau lub ntsej muag flange.
Lwm qhov teeb meem tshwm sim nrog flanges yog corrosion lossis yaig ntawm qhov chaw mating, uas tuaj yeem ua rau txo qis kev ua haujlwm sealing thiab muaj peev xwm to. Qhov no tuaj yeem tshwm sim los ntawm cov yam ntxwv xws li raug rau cov tshuaj corrosive lossis cov neeg khiav dej num siab hauv cov kav dej.. Hais txog qhov teeb meem no, Nws yog ib qho tseem ceeb los xaiv cov ntaub ntawv rau lub flange uas tiv taus corrosion los yog yaig, xws li stainless hlau lossis hlau alloy. Ntxiv rau, Tej zaum nws yuav tsim nyog los siv cov txheej tiv thaiv los yog cov hauv ob sab phlu rau cov mating nto ntawm flange thiaj li yuav muab kev tiv thaiv ntxiv tiv thaiv corrosion los yog yaig..
Flange Maintenance thiab Safety Considerations
Kev saib xyuas kom zoo ntawm flanges yog qhov tseem ceeb rau kev ua kom lawv cov kev ua haujlwm ntev thiab kev ntseeg siab hauv cov kav dej.. Qhov no suav nrog kev tshuaj xyuas tsis tu ncua ntawm flange kev sib txuas rau cov cim qhia txog kev xau, corrosion, los yog kev puas tsuaj, nrog rau kev kho kom raug raws li qhov tsim nyog. Nws tseem yog ib qho tseem ceeb los xyuas kom meej tias cov bolts raug kaw kom zoo ntawm lub sijhawm tsis tu ncua txhawm rau kom muaj kev ruaj ntseg thiab tsis muaj kev sib txuas.. Ntxiv nrog rau kev saib xyuas tsis tu ncua, Nws kuj tseem ceeb heev uas yuav tsum ua raws li cov lus qhia kev nyab xeeb thaum ua haujlwm nrog flanges txhawm rau tiv thaiv kev raug mob lossis raug mob.
Thaum ua haujlwm nrog flanges, Nws yog ib qho tseem ceeb uas yuav tsum hnav cov khoom tiv thaiv tus kheej tsim nyog (PPE) xws li hnab looj tes, tsom iav kev nyab xeeb, thiab kev tiv thaiv kev hnov lus txhawm rau tiv thaiv kev phom sij xws li cov npoo ntse lossis cov khib nyiab ya. Nws tseem yog ib qho tseem ceeb kom ua raws li cov txheej txheem nqa kom zoo thaum tuav hnyav lossis loj flanges txhawm rau tiv thaiv kev mob lossis raug mob.. Ntxiv rau, Nws yog ib qho tseem ceeb kom ntseeg tau tias txhua tus neeg ua haujlwm ua haujlwm nrog flanges raug cob qhia kom zoo rau kev ua haujlwm nyab xeeb thiab cov txheej txheem txhawm rau tiv thaiv kev raug mob lossis raug mob.. Los ntawm kev ua raws li kev saib xyuas thiab kev nyab xeeb no, Nws muaj peev xwm los xyuas kom meej tias flanges txuas ntxiv ua kom ntseeg tau thiab nyab xeeb hauv cov kav dej rau ntau xyoo tom ntej.