Ib Daim Ntawv Qhia Txog Kev Pov Hwm Zoo thiab Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb
Taw qhia
LSAW steel kav yog siv dav hauv kev xa cov roj thiab roj, kev thauj mus los hauv dej, kev tsim hluav taws xob sab nrauv, thiab kev ua haujlwm siab - siab. Vim lawv daim ntawv thov nyob rau hauv ib qho tseem ceeb thiab feem ntau hnyav ua hauj lwm ib puag ncig, kev tswj thiab kev soj ntsuam zoo yog ib qho tseem ceeb los xyuas kom meej lub sij hawm ntev - kev nyab xeeb, kev ua haujlwm ruaj khov, thiab kev ntseeg siab ntawm kev ua haujlwm.
Ntawm tag nrho cov txheej txheem tshuaj xyuas, kev sim hydrostatic thiab tsis yog -kev kuaj kev puas tsuaj (NDT) yog cov txheej txheem pov thawj tseem ceeb tshaj plaws rau cov kav dej LSAW. Ob qhov kev tshuaj xyuas no yog qhov yuav tsum tau ua raws li cov qauv thoob ntiaj teb xws li API 5L, ASTM A671, ASTM A252, thiab EN 10219, thiab lawv ua qhov kev nyab xeeb zaum kawg ua ntej cov kav xa mus rau cov haujlwm engineering.
Kab lus no muab cov lus qhia dav dav ntawm kev ntsuas hydrostatic siab thiab NDT tshuaj xyuas rau LSAW steel kav, piav qhia lawv cov qauv, cov txheej txheem, cov qauv ntsuas, cov cuab yeej siv, thiab qhov tseem ceeb ntawm engineering.
Txheej txheem cej luam ntawm LSAW Steel Pipe Inspection Requirements
LSAW steel kav yog tsim los ntawm hnyav hlau phaj siv longitudinal forming thiab submerged arc vuam. Vim lawv txoj kab uas hla loj thiab cov phab ntsa tuab, cov kav dej no yog tsim los rau kev kub siab sab hauv, sab nraud loads, thiab kev pab lub neej ntev.
Txhawm rau lav qhov ua tau zoo raws li kev ua haujlwm tiag tiag, txhua qhov LSAW yeeb nkab yuav tsum dhau los ntawm kev soj ntsuam yuav tsum tau ua, suav nrog:
Dimensional soj ntsuam
Kev kuaj tshuaj muaj pes tsawg leeg
Kev ntsuam xyuas cov cuab yeej cuab tam
Weld seam soj ntsuam
Kev ntsuas hydrostatic siab
Tsis yog -kev kuaj kev puas tsuaj
Ntawm cov no, kev sim hydrostatic thiab NDT yog qhov kev lees paub tseem ceeb tshaj plaws, ncaj qha txiav txim siab seb cov yeeb nkab puas tuaj yeem pom zoo rau kev teeb tsa cov kav dej.
Hydrostatic Test ntawm LSAW Steel Pipes
Lub hom phiaj ntawm Kev Ntsuas Hydrostatic
Kev ntsuam xyuas hydrostatic yog ib qho kev ntsuas siab ua rau ntawm txhua cov yeeb nkab tiav los xyuas nws qhov kev ua haujlwm siab thiab kev sib khi ruaj khov. Cov yeeb nkab tau ntim nrog dej thiab nias rau qhov ntsuas qhov ntsuas ntsuas kom pom qhov to, deformation, lossis cov yam ntxwv tsis muaj zog.
Lub hom phiaj tseem ceeb ntawm kev sim hydrostatic muaj xws li:
Kev txheeb xyuas qhov tseeb ntawm weld seam
Paub meej tias cov yeeb nkab lub cev muaj zog
Tshawb xyuas micro- tawg lossis pinholes
Ua kom muaj kev ruaj ntseg siab
Simulating tiag tiag pipeline ua hauj lwm tej yam kev mob
Kev ntsuam xyuas hydrostatic yog qhov yuav tsum tau ua rau cov kav dej - qib LSAW kav thiab yuav tsum tau ua los ntawm cov qauv thoob ntiaj teb feem ntau.
Hydrostatic Test Standards thiab Pressure Calculation
Qhov ntsuas hydrostatic siab yog xam raws li cov yeeb nkab sab nraud txoj kab uas hla, phab ntsa thickness, qib steel, thiab tau teev tsawg kawg nkaus yield zog.
Cov qauv tsim muaj xws li:
- API 5L
- ASTM A671 Cov Lus Qhia Tshwj Xeeb
- ASTM A252, ASTM A252
- TS EN 10219
- GB/T 9711
Kev ntsuas siab feem ntau yog nyob nruab nrab ntawm 1.25 txog 1.5 npaug ntawm kev tsim ua haujlwm siab ntawm cov kav dej.
Cov txheej txheem kuaj Hydrostatic
Cov txheej txheem kuaj hydrostatic ua raws li cov txheej txheem nruj thiab qauv.
Ua ntej, ob qho kawg ntawm cov yeeb nkab yog kaw nrog siab - siab kawg caps. Tom qab ntawd cov yeeb nkab tau ntim nrog dej huv, kom ntseeg tau tias tag nrho cov huab cua raug tshem tawm tag nrho. Thaum cov yeeb nkab puv tag, lub siab yog maj mam nce mus rau qhov ntsuas tus nqi teev.
Kev ntsuas siab yog tswj xyuas lub sijhawm tuav ruaj khov, feem ntau ntawm 5 mus rau 10 vib nas this, nyob ntawm tus qauv thiab cov neeg siv khoom xav tau. Nyob rau lub sijhawm no, cov yeeb nkab tau raug saib xyuas kom zoo rau kev poob siab, xau, deformation, lossis tus cwj pwm txawv txav.
Yog tias tsis pom qhov poob siab lossis qhov dej ntws tawm, cov yeeb nkab dhau qhov kev sim hydrostatic thiab raug tso tawm rau theem tom ntej tshuaj ntsuam.
Hydrostatic Test Equipment
Niaj hnub nimno LSAW yeeb nkab manufacturers siv tag nrho automated hydrostatic kuaj tshuab nrog digital tswj systems.
Ib qho kev ntsuam xyuas hydrostatic muaj xws li:
- Siab - lub twj tso kua dej siab
- Siab tswj chav tsev
- Digital siab sensors
- Tsis siv neeg cov ntaub ntawv kaw lus
- Xaus cov khoom siv sealing
- Kev ruaj ntseg enclosure
Cov txheej txheem Advanced tso cai rau tiag tiag -lub sij hawm ntsuas nkhaus ntsuas thiab tsis siv neeg cov ntaub ntawv tshaj tawm cov ntaub ntawv tsim tawm, ua kom paub tseeb tag nrho.
Tsis yog -Kev kuaj kev puas tsuaj ntawm LSAW Steel Pipes
Lub luag haujlwm ntawm NDT hauv LSAW Pipe Quality Control
Tsis yog -kev kuaj kev puas tsuaj yog siv los kuaj xyuas qhov tsis xws luag sab hauv thiab saum npoo yam tsis muaj kev puas tsuaj rau cov yeeb nkab. Txij li thaum LSAW kav yog cov khoom siv welded, tshwj xeeb yog muab rau cov vuam seam zoo thiab cov khoom siv zoo.
NDT tshuaj xyuas kom ntseeg tau tias:
- Tsis muaj qhov tawg sab hauv
- Tsis muaj fusion tsis tiav tshwm sim
- Tsis muaj porosity lossis slag suav nrog
- Tsis muaj teeb meem lamination
- Tsis muaj kab nrib pleb tshwm
NDT muab kev lees paub tag nrho ntawm cov yeeb nkab kev ncaj ncees ua ntej xa khoom.
Main NDT Methods rau LSAW Steel Pipes
Kev kuaj Ultrasonic
Kev kuaj ultrasonic yog thawj txoj kev tshuaj xyuas rau LSAW kav. Siab - zaus suab nthwv dej tau xa mus rau hauv cov khoom siv yeeb nkab, thiab cov cim qhia tau raug tshuaj xyuas los txheeb xyuas qhov teeb meem sab hauv.
Ultrasonic kuaj yog siv rau:
Base hlau tshuaj xyuas
Weld seam soj ntsuam
Thaum tshav kub kub cuam tshuam cheeb tsam tshuaj xyuas
Lamination nrhiav pom
Tsis siv neeg ultrasonic kuaj tshuab tuaj yeem luam theej tag nrho cov yeeb nkab lub cev thiab vuam seam nrog 100 feem pua.
Kev kuaj hluav taws xob
Kev kuaj hluav taws xob siv hluav taws xob siv X-ray lossis gamma-ray hluav taws xob los tshuaj xyuas cov qauv vuam sab hauv. Nws ua kom pom cov duab ntawm lub vuam seam, tso cai rau cov neeg soj ntsuam xyuas cov porosity sab hauv, tawg, slag inclusions, thiab tsis muaj fusion.
Kev kuaj hluav taws xob feem ntau yog siv rau:
- Longitudinal weld seam
- Pib thiab xaus qhov chaw weld
- Qhov tseem ceeb weld seem
Txoj kev no yuav tsum tau ua los ntawm API 5L thiab cov qauv kev lag luam sab nrauv.
Sib Nqus Particle Test
Kev ntsuam xyuas cov khoom sib nqus yog siv los txheeb xyuas qhov chaw thiab nyob ze ntawm - deg defects nyob rau hauv cov ntaub ntawv ferromagnetic.
Txoj kev no feem ntau yog siv rau:
- Weld seam nto
- Thaum tshav kub kub cuam tshuam cheeb tsam
- Pipe kawg bevel cheeb tsam
Nws muaj txiaj ntsig zoo rau kev txheeb xyuas cov kab nrib pleb thiab vuam tsis xws.
Liquid Penetrant Testing
Kev ntsuam xyuas ua kua dej yog siv los txheeb xyuas qhov chaw - rhuav tshem qhov tsis xws luag. Cov kua dej nkag mus rau hauv cov yeeb nkab saum npoo, thiab tom qab ntxuav, tus neeg tsim khoom nthuav tawm cov kab nrib pleb lossis qhov hws.
Txoj kev no feem ntau siv rau:
- Weld kho thaj chaw
- Cov cheeb tsam tseem ceeb
- Kev tshuaj xyuas yeeb nkab kawg
Yam NDT Kev Pabcuam rau LSAW Steel Pipes
Cov txheej txheem thoob ntiaj teb xav tau kev tshuaj xyuas tag nrho rau cov kav dej LSAW.
| Cov khoom soj ntsuam | Kev Pabcuam Kev Pabcuam |
|---|---|
| Base hlau UT | 100 feem pua |
| Weld seam UT | 100 feem pua |
| Kev kuaj hluav taws xob | 100 feem pua ntawm weld seam |
| Sib nqus particle test | Weld seam thiab xaus |
| Kev tshuaj xyuas qhov muag | Tag nrho cov yeeb nkab nto |
| Dimensional soj ntsuam | Tag nrho lub cev |
Tsuas yog cov kav dej uas dhau tag nrho cov khoom NDT tau pom zoo rau kev xa khoom.
Kev sib xyaw ntawm Hydrostatic Testing thiab NDT
Kev ntsuam xyuas hydrostatic thiab NDT tshuaj xyuas ua ke ua ke thiab tsim kom muaj kev pov thawj ua tiav.
NDT tsom rau kev kuaj pom qhov tsis xws luag
Hydrostatic kuaj xyuas cov kev ua haujlwm siab
NDT tiv thaiv kev pheej hmoo zais cia
Kev ntsuam xyuas hydrostatic paub meej tias muaj kev nyab xeeb tiag tiag
Ua ke, lawv xyuas kom meej tias txhua LSAW yeeb nkab ua tau raws li cov kev cai nruj tshaj plaws engineering.
Engineering Tus nqi ntawm Hydrostatic Testing thiab NDT
Hauv cov kav dej roj thiab roj, kev ua tsis tiav ntawm ib lub raj xa dej tuaj yeem ua rau muaj kev lag luam loj heev, kev ua qias tuaj ib puag ncig, thiab kev nyab xeeb raug xwm txheej. Kev kuaj Hydrostatic thiab NDT ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov kev pheej hmoo zoo li no.
Cov kev tshuaj ntsuam xyuas no muab:
- Ntev - kev nyab xeeb ua haujlwm ntev
- Txo tus nqi tu
- Tsawg qhov ua tsis tau zoo
- Extended kev pab cuam lub neej
- Kev ntseeg siab dua qhov project
Rau qhov ntev - cov kav xa mus rau qhov deb, cov chaw tawm ntug dej hiav txwv, thiab siab - cov tshuab siab, cov kev tshuaj xyuas no tsis yog xaiv tau tab sis yuav tsum muaj kev tiv thaiv engineering.
Xaus
Kev sim hydrostatic thiab tsis yog -kev kuaj kev puas tsuaj sawv cev rau qib siab tshaj plaws ntawm kev lees paub zoo rau LSAW steel kav. Los ntawm kev txheeb xyuas qhov tseeb thiab tag nrho - kev kuaj xyuas qhov tsis xws luag, cov kev tshuaj xyuas no xyuas kom meej tias txhua cov yeeb nkab tuaj yeem ua haujlwm zoo nyob rau hauv qhov kub siab, kub, thiab ib puag ncig.
Raws li cov kav dej txuas ntxiv txuas ntxiv mus thoob ntiaj teb, qhov tseem ceeb ntawm kev txhim khu kev qha LSAW yeeb nkab tshuaj xyuas tsuas yog nce ntxiv. Advanced hydrostatic testing equipment, automated NDT systems, thiab nruj thoob ntiaj teb cov qauv tsim lub hauv paus ntawm niaj hnub pipeline kev nyab xeeb.
Rau ib txoj haujlwm tseem ceeb, xaiv LSAW steel kav nrog tag nrho hydrostatic kuaj thiab NDT daim ntawv pov thawj yog qhov kev lees paub zoo tshaj plaws ntawm kev ua haujlwm ntev - thiab kev ruaj ntseg ua haujlwm.
