O le fa'aliliuina o le vevela o se masini fa'afefe vevela lea e fa'aaogaina mo le fa'aliliuina o le malosi fa'alotoifale i le va o vai e lua pe sili atu o lo'o maua ile vevela eseese.O le paipa po'o le paipa o se mea taua tele o le fa'afefe vevela, lea e tafe ai le vai.Talu ai e mafai ona faʻaaogaina faʻafefe vevela i le faagasologa, malosi, suauʻu, felauaiga, ea malulu, pusaaisa, cryogenic, toe faʻaleleia o le vevela, isi suauʻu, ma isi alamanuia, e mafai foi ona faʻavasegaina paipa vevela e pei o paipa o radiators, regenerators, condensers, superheaters. , mua'i fa'avevela, fa'alili, evaporators, ma fa'avela.E mafai ona tu'uina atu paipa fa'afesuia'i vevela i ituaiga sa'o, ituaiga U-piko, ituaiga vili, po'o le sitaili gata.E masani lava, o latou o seamless po o uelo faaga maua i fafo diameters i le va 12.7 mm ma 60.3 mm ma fai si manifinifi puipui.O paipa e masani ona faʻapipiʻiina ma le pepa faʻapipiʻi e ala i le taʻavale poʻo le uʻamea.I nisi tulaga, o paipa capillary po'o paipa lapopoa e fa'aogaina.O le fa'agaau e mafai ona fa'apipi'iina i apa'u (fa'apa'au fa'au'u) e maua ai le fa'aleleia atili o le vevela.
1. Filifiliga Mea mo Fa'aliliuga Vevela
I fa'ainisinia fa'ainisinia, o le filifilia o mea mo le fa'aliliuina o le vevela e tatau ona fa'atino ma'oti.E masani lava, o le paipa e tatau ona ogatasi i luga o faʻamatalaga o loʻo tuʻuina atu i le ASME Boiler and Pressure Vessel Code Section II.O le filifiliga o mea e tatau ona faʻavae i luga o le iloiloga atoa ma le faʻatusatusaina o le mamafa o galuega, vevela, tafega, pala, tafia, faʻaogaina, faʻaogaina tau, viscosity, mamanu, ma isi siosiomaga.E masani lava, e mafai ona tuʻuina atu le paipa faʻafefe vevela i mea uʻamea uʻamea poʻo nonferrous, lea e mafai ona faʻavasegaina atili e pei o le carbon steel, uʻamea uʻamea maualalo, uʻamea uʻamea, uʻamea uʻamea duplex, nickel alloy, titanium alloy, apamemea alumini, tantalum ma zirconium, ma isi.
O faʻamatalaga masani o mea e aofia ai: ASTM A178, A179, A209, A210, A213, A214, A249, A250, A268, A334, A423, A450, A789, A790, A803, A1016;ASTM B75, B111, B135, B161, B165, B167, B210, B221, B234, B251, B315, B338, B359, B395, B407, B423, B444, B466, B45, B35, B15, B35, B15, B35, B35, B35, B35, B35, B168 622 .B626, B668, B674, B676, B677, B690, B704, B729, B751 ma le B829.Fa'asologa o vaila'au, mea fa'ainisinia ma togafitiga vevela e tatau uma ona fa'atatau i tulaga fa'ata'atia i luga.E mafai ona gaosia le paipa fe'avea'i e ala ile faiga vevela pe malulu.E le gata i lea, o le galuega vevela e maua ai se ata manifinifi ma talatala uliuli maneta u'amea oxide i luga o lona mata.O lea ituaiga ata e masani ona ta'ua o le “mill scale” lea e tatau ona aveese mulimuli ane e ala i se faiga e liliu ai, polesi, po o le pikiina.
2. Su'ega ma Asiasiga
Suʻega faʻataʻitaʻiga ma suʻesuʻega i luga o paipa faʻafefe vevela e masani ona aofia ai suʻesuʻega vaʻaia, suʻesuʻega faʻapitoa, suʻega o loʻo i ai nei, suʻega o le hydrostatic pressure, pneumatic air-underwater testing, suʻega maneta, suʻega ultrasonic, suʻega aʻa, suʻega faʻainisinia (e aofia ai le tensile, flaring, flattening, ma toe su'esu'e fa'amafolafola, su'esu'ega vaila'au (PMI), ma su'esu'ega fa'a-X i luga ole lalaga (pe a iai).
Taimi meli: Nov-28-2022