Hauv kev lag luam engineering xws li roj thiab roj, dej hauv nroog, thiab kev lag luam xa mus, SAW steel kav yog dav siv nyob rau hauv ntau yam ntev -cov kav dej kav dej vim lawv qhov ruaj khov weld zoo, muaj zog siab- bearing peev, thiab adaptability rau loj - txoj kab uas hla. Raws li cov txheej txheem sib txawv, cov kav dej feem ntau muab faib ua o nshore pipelines thiab cov kav dej hauv av. Txawm hais tias tsis muaj qhov txawv txav ntawm lawv cov tsos, muaj qhov sib txawv tseem ceeb hauv cov tswv yim tsim, kev ntxhov siab, kev tiv thaiv - cov kev xav tau corrosion, thiab kev tsim kho.
Kev nkag siab zoo txog cov yam ntxwv ntawm cov kav dej hauv av thiab hauv av yog qhov tseem ceeb heev rau kev xaiv engineering, kev teeb tsa cov khoom siv, thiab lub sijhawm ntev - kev nyab xeeb kev ua haujlwm.
I. Engineering Yam ntxwv ntawm Onshore Pipelines
Onshore pipelines xa mus rau cov kav xa mus rau saum av los yog saum taub hau, feem ntau pom nyob rau hauv roob toj siab, hav dej, suab puam, permafrost cheeb tsam, thiab cov cheeb tsam uas complex struts. Xws li cov kav dej feem ntau yog txhawb nqa los ntawm cov hlua khi, cov yeeb nkab piers, lossis cov qauv hlau, thiab tag nrho raug rau ib puag ncig ntuj.
Raws li kev ua haujlwm ntawm ntug dej hiav txwv, SAW steel kav yuav tsum tiv taus tus kheej -qhov hnyav, nruab nrab siab, cua loads, qhov kub thiab txias hloov pauv, thiab cov khoom thauj ntxiv los ntawm ib feem ntawm geological deformation. Yog li ntawd, cov kev xav tau siab yog muab tso rau pem hauv ntej rau lub zog, rigidity, thiab weld stability ntawm steel kav.
Cov yam ntxwv tseem ceeb ntawm onshore pipelines muaj xws li:
- Cov ntaub ntawv nyuaj nyuaj: Ntxiv nrog rau kev siab sab hauv, lawv kuj dais kev ntxhov siab thiab kev ntxhov siab hauv zos.
- Pom tseeb qhov sib txawv ntawm qhov kub thiab txias: qhov sib txawv nruab hnub thiab hmo ntuj thiab qhov sib txawv ntawm lub caij ntuj sov yuav ua rau thermal expansion thiab contraction ntawm cov kav hlau, muab cov kev xav tau siab dua ntawm cov welds thiab cov khoom sib txuas.
- External corrosion yog feem ntau atmospheric corrosion: Nws yog ib qho tsim nyog yuav tsum tau tsom mus rau kev tiv thaiv kev cuam tshuam ntawm ultraviolet rays, dej nag, ntsev tsuag, thiab lwm yam.
Nyob rau hauv cov kev ua haujlwm zoo li no, SAW steel kav feem ntau xav tau qhov tseeb qhov tseeb thiab qhov ncaj los xyuas kom meej tag nrho cov kev ruaj ntseg thaum lub sij hawm overhead installation.
II. Engineering yam ntxwv ntawm cov kav dej hauv av
Cov kav dej hauv av xa mus rau cov kav xa dej ncaj qha hauv av, uas yog cov txheej txheem ntau tshaj plaws nyob rau hauv cov roj thiab roj ntev - cov kav dej nyob deb, cov kav dej hauv nroog, thiab cov kav dej hauv nroog.
Ib puag ncig hauv av yog qhov zais, tab sis qhov kev ua tau zoo ntawm cov kav hlau steel yog nruj dua. Cov kav dej tsis yog tsuas yog yuav tsum tau tiv taus lub zog nruab nrab hauv nruab nrab xwb tab sis kuj dais av npog qhov siab, lub hauv paus kev ntxhov siab, kev xeb hauv av, thiab kev cuam tshuam tam sim no thiab lwm yam kev ua haujlwm nyuaj.
Cov yam ntxwv tseem ceeb ntawm cov kav dej hauv av muaj xws li:
- Kev pabcuam ntev: Lub neej tsim feem ntau yog ntau tshaj 30 xyoo, xav tau cov khoom siv siab heev.
- Qhov cuam tshuam tseem ceeb ntawm geological ib puag ncig: Cov av pH, cov ntsiab lus dej, thiab kev tiv thaiv sib txawv heev nyob rau hauv ntau cheeb tsam, uas ua rau muaj qhov nyuaj corrosion.
- Kev saib xyuas tsis yooj yim: Thaum cov dej xau los yog kev puas tsuaj tshwm sim, tus nqi saib xyuas yog siab thiab siv sijhawm ntev.
Yog li ntawd, nyob rau hauv av ua hauj lwm tej yam kev mob, siab dua yuav tsum tau muab tso rau pem hauv ntej rau anti-corrosion system, weld compactness, thiab tag nrho kev cia siab ntawm SAW steel kav.
III. Qhov sib txawv ntawm Cov Kev Xav Tau rau SAW Steel Pipes Hauv Ob Ua HaujlwmCov xwm txheej
Txawm hais tias ob qho tib si onshore thiab underground pipelines tuaj yeem siv Longitudinal SAW (LSAW) steel kav lossis Spiral SAW (SSAW) steel kav, muaj qhov sib txawv pom tseeb hauv kev teeb tsa ntawm cov kev qhia tshwj xeeb.
- Rau onshore pipelines, kev saib xyuas ntau dua yog them rau cov qauv lub zog, rigidity, thiab weld qaug zog tsis kam ntawm cov kav hlau, thiab cov kev xav tau siab dua tau muab tso rau pem hauv ntej rau huab cua tiv thaiv ntawm sab nraud tiv thaiv- txheej txheej. Epoxy txheej los yog hnyav los tiv thaiv- txheej txheej txheej yog feem ntau siv.
- Rau cov kav dej hauv av, kev saib xyuas ntau dua yog them rau qhov kev tiv thaiv corrosion, tiv thaiv -kev ua tau zoo, thiab ntev - lub sij hawm ruaj khov ntawm cov kav hlau. Feem ntau, 3PE anti-corrosion, FBE anti-corrosion, los yog ob chav- txheej epoxy anti-corrosion systems yog configured, ua ke nrog cathodic tiv thaiv systems rau kev sib koom siv.
Nyob rau tib lub sijhawm, cov kav dej hauv av muaj cov kev cai nruj dua ntawm cov ntsuas xws li steel yeeb nkab ovality, phab ntsa thickness uniformity, thiab weld defect tswj los tiv thaiv kev pabcuam tsis ua haujlwm los ntawm kev ntxhov siab.
IV. Daim ntawv thov scenarios ntawm SAW Steel Pipes nyob rau hauv txawv Pipeline Systems
Nyob rau hauv onshore pipeline systems, SAW steel kav yog dav siv nyob rau hauv cross- roob pipelines, dej hav pipelines, overhead utility tunnels, Hoobkas nqi hluav taws xob tunnels, thiab overhead pipelines nyob rau hauv tshwj xeeb struts seem. Lawv qhov siab - cov yam ntxwv muaj zog tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm qhov ntev - ncua kev tso thiab cov qauv kev txhawb nqa nyuaj.
Hauv cov kav dej hauv av, SAW steel kav yog cov yeeb nkab tseem ceeb rau cov roj thiab roj ntev - cov kav dej nyob deb, cov kav dej hauv nroog cov kav dej, cov kav dej nruab nrab, thiab cov dej loj - cov dej num loj, tshwj xeeb tshaj yog tsim rau loj - kab, siab - siab, thiab ntev - kis tau tus mob scenarios.
Nrog rau kev nthuav dav txuas ntxiv ntawm lub zog sib kis, yuav luag txhua cov kav dej hauv av nrog txoj kab uas hla ntau dua 600 millimeters siv SAW steel kav ua cov khoom siv yeeb nkab loj.
V. Cov tswv yim tseem ceeb ntawm Kev Xaiv Engineering
Hauv kev tsim qauv tsim qauv, tsis muaj qhov yooj yim zoo dua - kev sib raug zoo ntawm cov kav dej hauv av thiab cov kav dej hauv av; Qhov kev xaiv dav dav yog nyob ntawm thaj chaw, thaj chaw tsim kho, thiab kev xav tau kev ua haujlwm.
Rau tej yaam num uas nyuaj struts, tsis ruaj tsis khov geology, los yog yuav tsum tau hla obstacles, onshore pipelines muaj zoo xws li hloov tau yooj yim kev tsim kho thiab yooj yim txij nkawm.
Rau qhov ntev -nruab deb, loj- ntws, thiab txuas txuas ntxiv mus, cov kav dej hauv av muaj qhov zoo dua hauv kev nyab xeeb thiab ruaj khov.
Txawm li cas los xij ntawm txoj kev tso, SAW steel kav tau dhau los ua cov khoom siv hauv cov yeeb nkab uas tsis tuaj yeem hloov tau hauv cov kav dej loj niaj hnub no vim lawv cov txheej txheem tsim khoom, txhim khu kev qha vuam zoo, thiab kev ua haujlwm zoo heev.
Xaus
Txawm hais tias muaj qhov sib txawv pom tseeb hauv txoj hauv kev ntawm kev tso dej ntawm cov kav dej thiab cov kav dej hauv av, ob qho tib si muab cov kev xav tau siab heev ntawm cov qauv siv zog, weld zoo, thiab ntev - lub sij hawm ruaj khov ntawm cov kav hlau steel. Nrog rau lawv cov siab siab-cov kabmob muaj peev xwm, kev ua haujlwm zoo heev, thiab kev lag luam loj, SAW steel kav tau dhau los ua cov khoom tseem ceeb hauv cov roj thiab roj, hauv nroog, thiab kev lag luam kis tau tus mob.
Kev xaiv kev tshawb fawb raws li kev ua haujlwm sib txawv, tsim nyog kev teeb tsa ntawm kev tiv thaiv -corrosion systems, thiab kev sib koom tes nrog kev tsim kho thiab kev tswj xyuas kev ua haujlwm tuaj yeem ua rau muaj txiaj ntsig zoo thiab kev nyab xeeb lav lub luag haujlwm ntawm SAW steel kav hauv cov kav dej niaj hnub no.
