Hauv cov kav dej hauv nroog hauv nroog, kev lag luam xa hluav taws xob, thiab ntau lub zog ua haujlwm, kev xaiv cov khoom siv hauv cov kav dej ncaj qha cuam tshuam rau kev nyab xeeb, ruaj khov, thiab kev pabcuam lub neej. Raws li cov yeeb nkab steel siv dav hauv engineering, carbon steel kav feem ntau siv rau kev thauj khoom xws li dej, roj, thiab chav. Tab sis cov pa roj carbon steel kav puas tuaj yeem siv rau hauv cov phiaj xwm xa tawm roj? Lawv puas ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb ntawm kev lag luam roj? Thiab lawv yuav tsum ua li cas thiaj li txaus siab?
Kab lus no yuav sib tham txog cov lus nug no los ntawm cov yam xws li cov yam ntxwv ntawm kev xa cov pa roj, qhov ua tau zoo ntawm cov kav dej carbon steel, lawv qhov kev thov, thiab cov kev xaiv tseem ceeb.
1. Cov ntsiab lus tseem ceeb rau cov khoom siv hauv cov kav dej hauv kev xa hluav taws xob
Cov pa xa hluav taws xob yog tus yam ntxwv ntawm cov nplaim taws, tawg, thiab xau- cov xov xwm tawm, ua kom muaj kev nyab xeeb siab heev ntawm cov kav dej. Txawm hais tias nws yog cov pa roj carbon monoxide, cov pa roj carbon monoxide, lossis cov roj av liquefied, cov dej xau tuaj yeem ua rau hluav taws kub lossis tawg tau yooj yim. Yog li ntawd, kev kuaj xyuas nruj yuav tsum tau ua thaum lub sijhawm xaiv cov khoom siv ntawm cov kav dej.
Ua ntej, cov kav dej yuav tsum muaj lub zog zoo thiab siab -cov kabmob muaj peev xwm. Gas kis tau tus mob feem ntau ua hauj lwm nyob rau hauv ib tug tej yam siab, tshwj xeeb tshaj yog nruab nrab thiab siab - siab gas pipelines, uas muaj meej yuav tsum tau rau lub yield zog, tensile zog, thiab qaug zog tsis kam ntawm steel kav.
Qhov thib ob, cov kav dej yuav tsum ua kom nruj zoo heev. Weld zoo, yeeb nkab ntom ntom, thiab kev sib koom ua ke ncaj qha cuam tshuam rau kev nyab xeeb ntawm kev ua haujlwm.
Thib peb, cov kav xa hluav taws xob xav tau qee qhov kev tiv thaiv corrosion. Gas tej zaum yuav muaj cov kab dej noo, sulfides, los yog carbon dioxide, uas tuaj yeem ua rau lub raj xa dej nyob rau hauv tej yam kev mob.
2. Dab tsi yogCarbon Steel Pipes?
Cov pa roj carbon steel kav feem ntau yog tsim los ntawm cov qauv hlau, nrog cov ntsiab lus carbon feem ntau ntawm 0.05% txog 0.25%. Lawv tau muab faib ua cov pa roj carbon zoo tib yam thiab nruab nrab - cov pa roj carbon steel yeeb nkab raws li cov qib zog thiab kev siv.
Cov qauv siv rau cov pa roj carbon steel kav muaj xws li ASTM A53, API 5L, thiab GB / T 9711. Cov kav dej no nthuav tawm cov khoom siv zoo, cov khoom siv vuam, thiab kev ua haujlwm, nrog rau cov ntawv thov hauv engineering.
Nyob rau hauv cov nqe lus ntawm kev tsim cov txheej txheem, carbon steel kav yuav raug tsim los ntawm ERW (Electric Resistance Vuam), LSAW (Longitudinal Submerged Arc Vuam), los yog seamless steel yeeb nkab txheej txheem, muab ntau yam kev thov.
3. Puas yog Carbon Steel Pipes tsim nyog rau kev sib kis?
Hauv kev xyaum ua engineering, carbon steel kav yog haum rau kev sib kis ntawm cov pa roj thiab tuav txoj haujlwm tseem ceeb hauv ntiaj teb cov roj yeeb nkab network.
Tam sim no, feem ntau hauv nroog cov kab tsheb ciav hlau, nruab nrab - mus rau - cov kav xa hluav taws xob siab, thiab cov kav dej muaj roj siv cov kav dej carbon steel ua cov khoom siv sib kis. Cov pa roj carbon steel kav muaj cov ntaub ntawv paub tab thiab ruaj khov nyob rau hauv ob qho tib si hauv av thiab cov kav dej siv hluav taws xob.
Cov laj thawj tseem ceeb nyob hauv lawv cov txiaj ntsig pom tseeb hauv lub zog, kev nyab xeeb, thiab kev tswj hwm:
- Siab zogthiab Tensile Strength: Cov kav dej carbon steel muaj lub zog muaj zog thiab lub zog tensile, ua tau raws li qhov siab -cov kabmob uas yuav tsum tau muaj ntawm kev xa cov roj. Tshwj xeeb, API 5L series pipeline steels yog tsim tshwj xeeb rau cov roj thiab roj kis tau tus mob thiab tau siv dav hauv cov dej num ntuj tsim.
- Zoo heev Weldhauv Performance: Cov pa roj carbon steel yeeb nkab ua kom yooj yim rau ntawm - qhov chaw vuam, nrog lub zog vuam mus txog ntawm cov khoom siv hauv paus, ua kom lub zog tag nrho ntawm cov kav dej.
- CorrosionKev tiv thaiv: Cov kav dej carbon steel tuaj yeem nruab nrog kev tiv thaiv-corrosion systems xws li 3PE (peb-txheej polyethylene), FBE (fusion-bonded epoxy), lossis txheej sab hauv / sab nrauv, txuas ntxiv lawv lub neej kev pab cuam hauv av lossis chaw ntub dej.
4. Cov Lus Qhia Tshwj Xeeb rau Carbon Steel Pipes siv hauv kev xa cov roj
Thaum cov pa roj carbon steel yeeb nkab haum rau kev xa tawm roj, tsis yog txhua qhov carbon steel kav tuaj yeem siv ncaj qha rau hauv cov haujlwm roj. Lawv yuav tsum ua kom tau raws li cov qauv kev lag luam uas cuam tshuam thiab cov kev xav tau kev ua haujlwm:
- Khoom sivKev xav tau: Gas pipelines feem ntau siv cov raj xa dej- qib carbon steel kav, xws li API 5L Qib B, X42, X52, thiab GB/T 9711 series qib, uas muaj lub zog zoo, toughness, thiab tawg tsis kam.
- Kev tsim khoom: Cov kav dej dav siv tau txais ERW ncaj-cov kav dej seam welded los yog LSAW submerged arc welded kav. Welds yuav tsum tau kuaj ultrasonic, X-ray tshuaj xyuas, lossis kuaj hydrostatic kom ntseeg tau.
- Anti -CorrosionKev kho mob: Cov kav dej faus rau hauv av yuav tsum tau nruab nrog cov khoom siv tiv thaiv sab nraud (piv txwv li, 3PE lossis epoxy hmoov) ua ke nrog kev tiv thaiv cathodic los tiv thaiv kev xeb sab nraud thaum lub sijhawm ua haujlwm ntev -.
- Kev tsim khoTxheej txheem: Kev vuam ntawm cov kav dej yuav tsum muaj cov txheej txheem vuam tshwj xeeb, cov vuam vuam uas muaj ntawv pov thawj, thiab tom qab- kev tshuaj xyuas vuam kom ruaj ntseg tag nrho.
5. Daim Ntawv Thov Qhov Zoo ntawm Carbon Steel Gas Pipes
Piv nrog rau lwm cov ntaub ntawv xws li cov kav dej yas thiab cov kav hlau tsis muaj steel, cov kav dej carbon steel muaj ntau qhov zoo sib xws hauv kev tsim roj av:
- Ntev -Nyob deb Transchaw nres nkoj: Siab zog thiab rigidity ua rau lawv zoo tagnrho rau ntev -cov kav dej loj.
- Siab -Txoj Cai Siab: Superior siab-cov kabmob muaj peev xwm hloov mus rau nruab nrab-siab siab gas kis systems.
- Cov xwm txheej Geological nyuaj: Muaj zog deformation kuj tso cai rau kev hloov mus rau qee qhov kev sib haum xeeb ntawm lub hauv paus thiab kev hloov pauv hauv av.
- Kev tu thiab kev tswj xyuas: Kev tshawb nrhiav paub, kho, thiab kho dua tshiab thev naus laus zis, ua ke nrog kev paub txog kev tsim vaj tsev nplua nuj, pab txhawb kev ua haujlwm ntev - thiab kev tswj xyuas.
Xaus
Hauv cov ntsiab lus, cov pa roj carbon steel kav tsis yog tsuas yog siv tau rau kev xa cov pa roj xwb tab sis kuj yog ib qho ntawm cov khoom siv dav tshaj plaws, paub tab, thiab txhim khu kev qha hauv cov kav dej tam sim no. Tsuav yog cov qib steel raug thiab cov lus qhia tshwj xeeb raws li cov qauv roj av raug xaiv, ua ke nrog lub suab tiv thaiv -corrosion systems thiab cov txheej txheem tsim, carbon steel gas pipelines muaj peev xwm ua tau raws li qhov yuav tsum tau ua ntawm lub sijhawm ntev - kev nyab xeeb thiab ruaj khov.
Hauv kev tsim hluav taws xob hauv nroog, kev lag luam cov kav dej sib txuas, thiab hla- cov dej xa hluav taws xob hauv cheeb tsam, cov kav hlau carbon hlau tseem yog cov khoom tseem ceeb uas tsis tuaj yeem hloov tau. Nrog kev nce qib hauv kev tsim khoom thiab tshuaj xyuas thev naus laus zis, kev nyab xeeb thiab kev pabcuam lub neej ntawm carbon steel gas pipelines yuav txuas ntxiv txhim kho, muab lub hauv paus ruaj khov rau kev thauj mus los niaj hnub.
