Oluyipada ooru jẹ ohun elo gbigbe-ooru ti a lo fun gbigbe agbara igbona inu laarin awọn omi meji tabi diẹ sii ti o wa ni awọn iwọn otutu oriṣiriṣi.Ọpọn tabi tube jẹ ẹya pataki ti imukuro ooru, nipasẹ eyiti awọn ṣiṣan nṣan.Niwọn igba ti awọn paarọ ooru le ṣee lo ninu ilana, agbara, epo, gbigbe, afẹfẹ afẹfẹ, firiji, cryogenic, imularada ooru, awọn epo miiran, ati awọn ile-iṣẹ miiran, awọn tubes paarọ ooru le tun jẹ ipin ni ibamu bi awọn tubes ti awọn radiators, awọn atunda, awọn condensers, superheaters , preheaters, coolers, evaporators, ati igbomikana.Awọn tubes oluparọ ooru le jẹ ti pese ni iru taara, iru U-tẹ, iru okun, tabi ara serpentine.Ni gbogbogbo, wọn jẹ alailẹgbẹ tabi awọn tubes welded ti o wa ni awọn ita ita laarin 12.7 mm ati 60.3 mm pẹlu odi tinrin.Awọn ọpọn naa ni a maa n so pọ pẹlu tubesheet nipasẹ yiyi tabi ilana alurinmorin.Ni awọn igba miiran, tubing capillary tabi ọpọn iwọn ila opin jẹ iwulo.tube le wa ni ti pese pẹlu awọn lẹbẹ (finned tube) eyi ti o pese imudara ooru-gbigbe ṣiṣe.
1. Aṣayan ohun elo fun Gbigbe Oluyipada Ooru
Ni adaṣe imọ-ẹrọ, yiyan awọn ohun elo fun tubing paarọ ooru ni a gbọdọ ṣe ni lile.Ni gbogbogbo, ọpọn iwẹ naa yoo ni ibamu si awọn pato ti a fun ni Abala Abala II Boiler ASME ati Titẹ Vessel Code.Aṣayan ohun elo naa yoo da lori ero gbogbogbo ati iṣiro ti titẹ iṣẹ, iwọn otutu, oṣuwọn sisan, ipata, ogbara, iṣẹ ṣiṣe, ṣiṣe idiyele, iki, apẹrẹ, ati awọn agbegbe miiran.Nigbagbogbo, ọpọn oniyipada ooru le wa ni ipese ni irin tabi awọn ohun elo irin ti kii ṣe irin, eyiti o le jẹ ipin siwaju sii bi irin erogba, irin alloy kekere, irin alagbara, irin alagbara irin duplex, alloy nickel, alloy titanium, alloy Ejò, alloy aluminiomu, tantalum ati zirconium, ati bẹbẹ lọ.
Awọn pato boṣewa ti awọn ohun elo pẹlu: 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, B455,52, B1 622 .B626, B668, B674, B676, B677, B690, B704, B729, B751 ati B829.Tiwqn kemikali, awọn ohun-ini ẹrọ ati itọju igbona gbogbo yoo ni ibamu si awọn iṣedede ti a mẹnuba loke ni atele.Awọn ọpọn pasipaaro ooru le jẹ iṣelọpọ nipasẹ ilana gbona tabi tutu.Pẹlupẹlu, ilana iṣẹ ti o gbona n ṣe agbejade fiimu tinrin ati inira dudu oofa iron oxide lori oju rẹ.Iru fiimu yii ni a maa n pe ni “iwọn ọlọ” eyiti yoo yọkuro ni atẹle nipa titan, didan, tabi ilana gbigbe.
2. Igbeyewo ati ayewo
Idanwo boṣewa ati ayewo lori awọn tubes paarọ ooru nigbagbogbo pẹlu idanwo wiwo, ayewo onisẹpo, idanwo eddy lọwọlọwọ, idanwo titẹ hydrostatic, idanwo pneumatic air-labẹ omi, idanwo patiku oofa, idanwo ultrasonic, awọn idanwo ipata, awọn idanwo ẹrọ (pẹlu fifẹ, flaring, fifẹ, ati yiyipada idanwo fifẹ), itupalẹ kemikali (PMI), ati ayewo X-ray lori awọn welds (ti o ba jẹ eyikeyi).
Akoko ifiweranṣẹ: Oṣu kọkanla-28-2022