Ibisobanuro ku bicuruzwa
ASTM A213 Icyiciro T11 ni chromium ferritic idafite- molybdenum (Cr - Mo) umuyoboro ukoreshwa mumashanyarazi ashyushye hamwe na flue - ibidukikije bya gaze. Urwego rwashyizweho kugirango rwihute - rutwara ibice mumashanyarazi, HRSGs, ubushyuhe bwa peteroli hamwe na - ihinduranya ry’ubushyuhe aho ibyuma bya karubone bidashobora kwihanganira okiside cyangwa imbaraga zo kunyerera.
Umuyoboro wa Octal utanga T11 muburyo busanzwe - na - imiterere yubushyuhe, hamwe no kugenzura ibipimo, kwipimisha byuzuye kuri ASTM A213 / A1016 hamwe nicyemezo cyurusyo, kuburyo gishobora guhita kijya mubyuma no gutunganya ibihimbano.
Ibigize imiti
| Ikintu | Ibirimo (%) | Imikorere |
|---|---|---|
| C | 0.05 – 0.15 | Itanga imbaraga no kunyerera, ikomeza gusudira |
| Mn | 0.30 – 0.60 | Guhindagurika, gukora bishyushye |
| Si | 0.50 – 1.00 | Gushyigikira kurwanya okiside |
| P | Ntabwo ari munsi cyangwa bingana na 0.025 | Imipaka ntarengwa |
| S | Ntabwo ari munsi cyangwa bingana na 0.025 | Igenzurwa no gukomera |
| Cr | 1.00 – 1.50 | Kugabanuka kwinshi muri gaz / flue |
| Mo. | 0.44 – 0.65 | Kuzunguruka no guturika imbaraga |
Iyi chromium - molybdenum iringaniye iri munsi ya T22 cyangwa izindi zo hejuru - Cr amanota, niyo mpamvu T11 yunamye kandi ikanasudira byoroshye, ariko iracyakomeza serivisi ya dogere 500-600.
Ibikoresho bya mashini
| Umutungo | Ibisabwa | Intego |
|---|---|---|
| Imbaraga zingana | Biruta cyangwa bingana na 415 MPa (60 ksi) | Muri rusange ubushobozi bwo kwikorera |
| Gutanga imbaraga (0.2%) | Kurenza cyangwa bingana na 205 MPa (30 ksi) | Irinda ihinduka rihoraho |
| Kurambura | Kurenza cyangwa bingana na 30% | Birakenewe kunama, gutekesha, gusudira |
| Gukomera | Ntabwo ari munsi cyangwa bingana na 163 HBW | Komeza gukomera kumagare yumuriro |
Indangagaciro zihuye nibisanzwe - na - uburyo bwo gutanga ibintu byerekana ko ingufu ninganda zitunganya ubusanzwe zigaragaza.
Gukora no gutunganya ubushyuhe
Kuri serivise ya boiler inzira inzira ifite akamaro nka chimie. Umuyoboro wa Octal ukoresha inzira idafite inzira munsi ya ASTM A213 / A1016:
- alloy bilet irashyushye - yatobotse cyangwa irasohoka kugirango ikore amajwi
- umuyoboro urashyushye - kuzunguruka cyangwa gukonja - ushushanyije kuri OD yateganijwe, urukuta no kurangiza hejuru (ingenzi kubushyuhe - imiyoboro ihinduranya)
- umuyoboro usanzwe kuri dogere 940–980 kugirango utunganyirize matrise ya ferritic, ukureho bande kandi unganya imiterere yubukanishi muburebure
- umuyoboro ushushe kuri dogere 675-755 kugirango ugarure guhindagurika no gufunga ikwirakwizwa ryiza rya karbide mu mwanya
Uru ruzinduko rwa N + T nirwo ruha T11 microstructure ihamye: chromium irashobora kubaka firime ikomeye ya okiside, molybdenum irashobora gukora akazi kayo mugukomeza imigezi, kandi umuyoboro ntukomera cyane gusudira. Nyuma yo kuvura ubushyuhe, imiyoboro iragorororwa, igeragezwa hydrostatike, kandi igasuzumwa nuburyo bwa NDE bwateganijwe (eddy - ikigezweho cyangwa ultrasonic) mbere yo gushiraho no gupakira. Intambwe yose yanditswe kugirango tube ikurikiranwe nubushyuhe.
Urwego
| Parameter | Urwego / ibisobanuro |
|---|---|
| Hanze ya diameter | 12.7 - 127 mm (0.5 - 5 muri) |
| Ubunini bw'urukuta | 1,2 - 12 mm |
| Uburebure | Kugera kuri m 12; SRL / DRL / gukata - kugeza - uburebure |
| Kurangiza | Ikibaya, cyogoshe, cyangwa cyateguwe kuri U - kunama / kurangiza |
| Kwihanganira OD | mubisanzwe ± 1% (kuri ASTM A1016) |
| Kwihanganira urukuta | mubisanzwe ± 10% |
| Kugororoka | mubisanzwe munsi cyangwa ingana na 0.8 mm / m |
Ibi bikubiyemo ibishishwa bisanzwe, ibishishwa bya superheater / reheater, hamwe nubushyuhe bwo gutunganya.
Imikorere ya serivisi
Mubikorwa T11 ikora chromium imwe - oxyde ikungahaye, bityo gutakaza ibyuma byicyuma hamwe nubunini bwubaka - hejuru biratinda kuruta ibyuma bya karubone. Molybdenum itinda kunyerera no guturika, bifite akamaro kubituba bicara munsi yubushyuhe nigitutu cyamasaha ibihumbi. Kuberako imiterere ihindagurika ferrite, umuyoboro wihanganira gutangira - guhagarika inzinguzingo muri HRSGs hamwe nibimera bya cogeneration utabuze kugororoka vuba. Welds igumana ubunyangamugayo nyuma ya PWHT mugihe yujuje ibyangombwa - alloy yuzuza ibyuma.
Porogaramu
- amazi yo gutekesha amazi, superheater, reheater hamwe nubukungu bwubukungu mumashanyarazi yumuriro
- HRSG / ikomatanyije - amashanyarazi azunguruka
- peteroli na chimique itunganya ubushyuhe
- hejuru - ubushyuhe bwikigero - na - guhinduranya ubushyuhe
- ibikoresho bishyushye kandi bitunganyirize imirongo imbere yimbaraga nimbaraga
Kugenzura inyandiko
Kwipimisha bikorwa hakurikijwe ASTM A213 nibisabwa muri rusange A1016. Ibyo birimo hydrostatike cyangwa eddy - isuzuma ryubu kugirango ryumvikane neza kurukuta, ibizamini bya tensile hamwe nubukomezi kuri ubushyuhe - aho bivuriza, gusibanganya / gucana kugirango bigaragaze ko bihindagurika, hiyongereyeho ubugenzuzi bugaragara. Kubikorwa bifite QA / QC yo hejuru, Umuyoboro wa Octal urashobora kongeramo ultrasonic cyangwa radiografi. Imiyoboro yose yatanzwe na EN 10204 3.1 cyangwa 3.2 MTCs kugirango nyirayo ashobore gutanga ibisubizo byimiti, imashini na NDE numero yubushyuhe.
Kuki isoko ASTM A213 T11 kuva Umuyoboro wa Octal
- nyayo nyayo Cr - Mo tubing mubisanzwe - na - imiterere yubushyuhe, ntabwo ari karubone rusange - umuyoboro wibyuma
- ibipimo, ibizamini hamwe nibimenyetso bihujwe nimbaraga, guteka, HRSG nibisobanuro bitunganijwe
- kohereza hanze - biteguye hamwe nuburinzi bwanyuma kuburebure - byoherejwe
- inkunga yubuhanga kugirango ihuze T11 hamwe na Cr - Mo amanota (T22, A335 P11 / P22) mugihe igice kimwe gikoresha amavuta menshi
- urupapuro rwanditse ibicuruzwa byanditse - ubanza kandi muburyo bwa tekiniki, kugirango ufashe urubuga rwawe rushya kuronderwa nkurupapuro rwabatanga, ntabwo ari inyandikorugero
Ibibazo
Q1: ASTM A213 T11 tubing ikoreshwa iki?
Q2: "1.25Cr-0.5Mo" bisobanura iki kuri T11 tubing?
Q3: ASME SA213 T11 irasa na ASTM A213 T11?
Q4: Ni ryari nahitamo T11 aho guhitamo T22?
Impamyabumenyi
Icyemezo cya CE
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Icyemezo cya API Q1
Icyemezo cya ABS
Icyemezo cya AP-5L
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