ASTM A213 T9 Tubabukan min bɛ kɛ ni nɛgɛ ye

Superheater bankiw, reheater circuits, HRSG convection sections ani heater coils ɲɛda tube-nɛgɛ funteni ni oksidan doni minnu bɛ -Cr dɔgɔmanninw degun. ASTM A213 T9 bɛ funteni fanga caman di ani ka sɛgɛsɛgɛli kɛcogo sabatilen di ka tɛmɛ 1,25–2,25Cr hakɛw kan ni 9Cr–V–Nb nɛgɛw dilanni sɛgɛsɛgɛli tɛ, o b’a kɛ sugandili nafama ye yɔrɔ min na lɛrɛ janw, funteni jiginniw ani bobine dafalenw bɛ farati fanga kɔrɔ.

ASTM A213/SA213 bɛ nɛgɛdaga-nɛgɛw ɲɛfɔ minnu tɛ sɔgɔsɔgɔtubabukan naka ɲɛsin bɔgɔdaga ni funteni-falen-falen-minɛnw ma. Porozɛw bɛ kɛnɛma cɛmancɛ, kogo fitinin ani tigɛ janya ɲɛfɔ k’a ɲɛsin kunnafonidilan kan sanni ka pibiliki waatibolodalenw kɛ. A ka c’a la, tilennenya ni kɔnɔbara basigilen bɛ gɛlɛya walasa ka tubabu-ka se-tubabufura fitinin ma; dakunw bɛ dilan kɛnɛ kan walima kɛnɛ-tigɛlenw kama walasa ka fiɲɛbɔlanw kɛ, ni bevelw ye dɔrɔn foro butt weldingw labɛnna yɔrɔ minnu na.

Tablo 1 - A213 T9 kemikaliya (wt.%) .

Tablo 2 - Nafolo fitininw ka ɲɛsin sɛgɛsɛgɛli ma

Design bɛ baara kɛ ni degunw ye minnu bɛ se ka kɛ baarakɛcogo funteni na ka bɔ sariyasun min bɛ ɲɛmɔgɔya la.

Baara kɛcogo bɛ kɔlɔsi ni...nɛgɛ funteni, daminɛ–dabila frequency ani surface depositska wale kɛ ɲɔgɔn fɛ. Ni ~9% Cr ye, oksidan bɛ teli ka tugu a kɔsariya min bɛ tali kɛ paraboli la(ɔkisizɛni-a janya2 ≈ k·waati); paraboli hakɛ ka dɔgɔ kosɛbɛ ka tɛmɛ nɛgɛw kan minnu ka dɔgɔ-Cr, o bɛ dan sigi sɔgɔsɔgɔninjɛ janya ni sɔgɔli ko kɛlenw na. Mo bɛ karɔbɔliw sabati, ka suman-dancɛ sɛgɛsɛgɛli ni kɔnɔna falenni bila kɔfɛ o la kogo bɔnɛni ka bɔ waati-deformation deformation na ka surunya.

Kɔnɔyɔrɔ minnu ka suma, minnu jalen doni n’a fɔ funteni-reheat circuits ani heater convection banks, T9 bɛ lamini ni kogo janya mara ka ɲɛ ka tɛmɛ 1,25–2,25Cr suganditaw kan, ka retube frequency ni downstream fouling dɔgɔya min bɛ sɔrɔ shed scale fɛ. HRSG baara la ni sɛgɛnlafiɲɛbɔ ye tuma caman, funteni tɛmɛnenw bɛ ɔkisizɛni degunw kɔrɔta ani ka dɔ fara spallation/"re-oxidation" kan; ka ramp rates moderating, ka soot-fiyɛcogo ɲuman kɛ, ani ka tugu ɲɔgɔn kɔtubabu-nɛgɛ funteni (TMT) .yɔrɔ dumanw bɛ faratiw dɔgɔya kosɛbɛ. Deposit chimie nafa ka bon : alkali-nafalen don walima kisɛkisɛ-bɔgɔ bɛ se ka oksizɛni caman sɛmɛntiya ani ka sigida binkanni teliya, o la, sɛnɛfɛnw/ciyɛn sɛgɛsɛgɛli ni borescope sɛgɛsɛgɛli faralen don ɲɔgɔn kan, o bɛ kɛ ka saniya ni sɛgɛsɛgɛli waatiw boloda.

Ka ɲɛsin creep ma, T9 ka nafa sigilen bɛjanya-ɲɛnamaya mara: suman-dancɛ karɔbɔli rezo ɲuman, min bɛ to senna ka bɔ tempering ɲuman na, o bɛ kari waati ɲɛ ani ka deformation kɛ cogo kelen na. Ni sumaya kojugu walima ni a ma sumaya kokura, o bɛ sumanw gɛlɛya ani ka karidiw kɛ sɛrɛkili ye, ka kɛ sababu ye ka u wuli joona, ka u kɛ oval ye walima ka u bɔ. Tiɲɛ na, trending (ɲɛnabɔli).ɔkisizɛni girinya/a girinya cayafaralen ɲɔgɔn kan ni TMT tariku ye, o bɛ daliluw di sɛgɛsɛgɛli waati bolodacogo ma.

Tablo 3 - Foro taamasiyɛn ni ɛntɛrinɛti jaabi

Tablo 4 - Anwɛlɛki hakɛ danmadɔ

A ka c’a la, dugukolo cogoya bɛ ɲɛnamaya bɛɛ latigɛ baara funteni na. Kunnafoni-falen-falen-yɔrɔ min bɛ se ka kɛ, o ye:de-skala → saniya → ja → fini → siri → sɛgɛsɛgɛli. A dilanni kɔfɛ, aw bɛ funteni tint ni residual scale bɔ ID/OD la; aw bɛ a ko ni kunnafonidilan saniyalenw ye, o kɔ aw bɛ ID ja fo ka se laɲini sɛbɛnnen dɔ ma (misali la, nɛnɛ yɔrɔ min bɛ lamini jukɔrɔ ni dancɛ ɲɛfɔlen ye). Dakɛɲɛdakun sirilenw dakunwani ka baara kɛ ni finimugu tangalanw ye minnu bɛ buguri ni ji kɛlɛ; aw bɛ bulɔguw mara duguma ni jibɔyɔrɔ ni UV lakanani ye.

Sɔn ye ITP ta ye walasa QA ka se ka bolonɔ bila a la k’a sɔrɔ sɔsɔli ma kɛ. Aw bɛ "saniya" kɔrɔ ɲɛfɔ (kalan yelen, kulori/tulu dan ni a bɛ se ka kɛ), jalen bɛ lajɛ cogo min na, ani pake minnu ka kan ka kɛ a maracogo la. Aw bɛ karɔbɔli-nɛgɛminɛnw yɔrɔ janya T9 tubabukan na walasa ka nɛgɛw doncogo hɔrɔnyalen-bali bali; butiki ɲagaminenw tɛ se ka bali yɔrɔ minnu na, aw bɛ poste-saniya dɔ boliferokisili sɛgɛsɛgɛlimisaliw kan. Sani aw ka bɔ, aw bɛ fotow sɛbɛn ani ka a maracogo sɛbɛn ni bundle ID ye walasa a sigibagaw k’a dɔn ko layini ma nɔgɔ marayɔrɔ la.

Porozɛ minnu sinsinnen bɛ ASTM A213 T9 kan,Octal Pipe (Octal Pipe) yebɛ tubabukanw di minnu tɛ fɛn tiɲɛ, ka taabolo ni sɛbɛnw bɛn porozɛ ITP ma, wa a bɛ se ka seereya yɛrɛmahɔrɔnyalen labɛn (misali la, BV, SGS) ni a mago bɛ a la.

J1: ASTM A213 T9 (ASME SA213 T9) tubabukan bɛ kɛ mun na?
A1:9Cr-1Mo feriti sɔgɔli tubabukan na min tɛ sɔgɔsɔgɔ, ka ɲɛsin bojiw, superheaters, ani funteni ɲɔgɔn falenfɛnw ma, minnu bɛ kɛ ni funteni caman ye, ni tansiyɔnba ye.

J2: Yala A213 T9 bɛ bɛn A335 P9 ma wa?
A2:U bɛ jate ɲɔgɔn fɛ tuma caman na chimie/UNS fɛ (T9=tubing spec, P9=pipe spec), nka aw ka kan ka bɛn poroze ka sariya wajibiyalen ni sɛgɛsɛgɛli hakɛ ma.

J3: Ne ka kan ka mun ɲini walasa ka ASTM A213 T9 tubabukan jogo sɛgɛsɛgɛ sani a ka san?
A3:3.1 MTC ni funteni hakɛ + funteni furakɛli cogoya, chimie/masin jaabiw, ji sɛgɛsɛgɛli walima NDE (i n’a fɔ a ɲɛfɔlen don cogo min na), hakɛ sɛgɛsɛgɛliw, ani taamasiyɛn/traceability dafalen.

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