API 5CT Coupling yog dab tsi
API 5CT coupling yog luv, sab hauv xov hlau siv los txuas ob qhov ntev ntawm cov casing lossis tubing. Nws nqa cov xov sab hauv ntawm ob qho kawg, thiab cov xov sab nraud machined ntawm cov yeeb nkab kawg koom nrog cov xov sab hauv los tsim kev sib txuas. Ib tug raug coupling muaj xws li lub cev coupling, ib tug internal xov ntawm txhua kawg, ib tug xov runout los yog recess, bearing los yog sealing nto qhov twg cov kev twb kev txuas tsim yuav tsum tau, thiab lwm yam kos npe los yog xim daim ntawv qhia rau qib thiab xov daim ntawv.
Lub coupling tsis yog generic yeeb nkab haum. Nws tsis muaj lub luj tshib, bolts los yog lub hauv paus yeeb nkab lub cev, thiab nws yog tsim tshwj xeeb rau cov roj teb chaws tubular khoom sib txuas. Yog li ntawd, cov couplings yuav tsum tau tsim thiab tshuaj xyuas raws li API cov cai, vim hais tias cov coupling feem ntau yog qhov txuas tsis muaj zog tshaj plaws hauv cov hlua los yog cov hlua.
Casing Coupling thiab Tubing Coupling piv
| Yam khoom | Casing coupling | Tubing coupling |
|---|---|---|
| Lub hom phiaj tseem ceeb | Koom nrog casing pob qij txha los tsim cov khoom thauj -cov hlua zoo li qub | Koom nrog cov tubing pob qij txha los ua kom lub siab- txoj hlua ntau lawm |
| Qhov ntau thiab tsawg | 4-1/2 rau 20 nti | 2-3/8 rau 4-1/2 nti |
| Xov xwm | STC, LTC, BTC | NU, UA |
| Qib | H40, J55, K55, N80, L80, P110 | H40, J55, K55, N80, L80, P110 |
| Load condition | High axial nro thiab compression | Sab hauv siab thiab rov ua dua |
Thawj qhov kev txiav txim siab thaum qhia txog kev sib txuas yog li ntawd seb nws puas ua haujlwm rau txoj hlua casing lossis txoj hlua tubing. Sab nraud txoj kab uas hla, xov daim ntawv thiab phab ntsa seem tag nrho ua raws li qhov kev xaiv.
Qib Qib thiab Cov Kev Xav Tau Mechanical
API 5CT npaj seamless thiab welded casing thiab tubing, thiab lawv couplings, rau hauv cov xim -coded qib. Couplings yog tsim los ntawm cov khoom ntawm qib tsawg kawg yog sib npaug ntawm cov yeeb nkab tshwj tsis yog tus neeg yuav khoom pom zoo lwm yam.
| Qib | Yield zog ntau yam | Tsawg kawg tensile zog | Cov kev pabcuam |
|---|---|---|---|
| H40 | 276 rau 552 MPa | 414 MPa ua | Qhov dej ntiav ntiav, tsis tshua muaj siab |
| J55 | 379 rau 552 MPa | 517 MPa ua | Standard casing ntawm nruab nrab qhov tob |
| K55 | 379 rau 552 MPa | 655 MPa ua | Casing qhov twg siab dua tensile yog thov |
| N80 | 552 rau 758 MPa | 689mpa ua | Qhov tob tob thiab siab axial loads |
| L80 | 552 txog 655 MPa | 655 MPa ua | Kev txwv hardness rau qhov kev pabcuam qaub |
| P110 | 758 rau 965 MPa | 862 MPa | Kev kub siab, qhov tob tob thiab sib txawv |
Nyob rau hauv txhua qib cov kev qhia tshwj xeeb tso cai rau cov txiaj ntsig muaj zog ntau dua li tus nqi ib zaug, thiab qhov txwv tsis pub muaj L80 thiab qib L yog qhov ua rau lawv tsim nyog qhov twg yuav tsum muaj kev tswj hwm hardness thiab sulphide kev nyuaj siab cracking kuj yuav tsum tau.
Xov Forms thiab Connection Design
STC, luv round thread:daim ntawv luv tshaj plaws nrog lub zog sib koom ua ke qis tshaj plaws, siv rau qhov ntiav thiab nruab nrab qhov tob casing.
LTC, ntev round xov:ib txoj hlua ntev ntev muab kev sib koom ua ke ntau dua li STC ntawm tib lub yeeb nkab lub cev.
BTC, xov tooj:square profile xov nrog lub zog sib koom ua ke zoo thiab ua haujlwm zoo rau kev hla - xov, dav siv rau txoj kab uas hla loj dua.
NU, tsis yog - chim siab tubing:threads txiav ncaj qha mus rau hauv cov yeeb nkab lub cev phab ntsa, khaws lub sab nraud txoj kab uas hla mus rau cov yeeb nkab dimension.
EUE, sab nraud chim siab tubing:cov yeeb nkab kawg chim siab kom nce phab ntsa tuab kom cov xov muaj zog tuaj yeem raug txiav, muab qhov siab tshaj plaws tubing sib koom ua haujlwm.
Xaiv thiab soj ntsuam cov ntsiab lus
Muab cov qib coupling rau qib yeeb nkab, thiab paub meej tias daim ntawv xov, lub suab txoj kab uas hla thiab xov taper nrog qhov tseeb tus ntsuas ntsuas.
Txheeb xyuas qhov sib txuas hardness thiab cuam tshuam cov khoom uas qhov kev pabcuam qaub tau teev tseg, txij li lub zog sib txuas tuaj yeem tawg txawm tias lub cev ua raws li cov yeeb nkab.
Paub meej tias cov coupling yog muab los ntawm cov yeeb nkab chaw tsim tshuaj paus los yog ib tug pom zoo threader nyob rau hauv ib tug lees paub daim ntawv tso cai, nrog traceability rau lub tshav kub tooj.
Tshawb xyuas cov xov puas, galling, ovality thiab kho kom raug -paj cim ua ntej txoj hlua khiav.
Khaws cov couplings nrog xov tiv thaiv kom haum thiab ua kom huv si thiab qhuav; xov corrosion yog ib qho ua rau kev sib txuas tsis ua haujlwm ntawm qhov chaw.
Siv cov xov xov uas tau teev tseg rau hauv qhov kom muaj nuj nqis rau daim ntawv xov, txij li ob qho tib si hauv qab - daim ntawv thov thiab dhau - daim ntawv thov hloov qhov ua - tus cwj pwm.
FAQ
Q: Dab tsi yog qhov txawv ntawm lub casing coupling thiab tubing coupling?
Lub casing coupling koom nrog cov pob qij txha uas tsim txoj hlua zoo thiab nws siv STC, LTC lossis BTC threads hauv qhov ntau thiab tsawg ntawm 4-1/2 txog 20 nti. Lub raj txuas txuas txuas txuas txuas txuas txuas uas nqa cov kua dej tsim tawm thiab nws siv NU lossis EUE threads hauv qhov ntau thiab tsawg ntawm 2-3/8 txog 4-1/2 nti.
Q: Daim ntawv qib txhais li cas ntawm API 5CT txuas?
Tsab ntawv thiab tus lej txheeb xyuas cov pab pawg muaj zog thiab qhov tsawg kawg nkaus tawm lub zog hauv ntau txhiab phaus ib square inch. H40, J55, K55, N80, L80 thiab P110 yog cov qib sib xws, thiab txhua tus raug txheeb xyuas los ntawm cov xim xim ntawm qhov sib txuas sab nraud.
Q: Vim li cas L80 tau teev rau cov qhov dej qaub?
L80 yog muab nrog kev txwv tsis pub muaj zog ntau yam thiab tswj kev nyuaj, uas txo qis kev cuam tshuam rau sulphide kev ntxhov siab tawg. Hauv kev pabcuam hydrogen sulphide, kev xaiv cov khoom siv feem ntau yog tswj hwm los ntawm cov qauv kev pabcuam qaub uas tau lees paub ntxiv rau API 5CT.
Q: Yuav ua li cas yog lub coupling xov soj ntsuam?
Nrog cov ntsuas ntsuas rau sawv ntsug-tawm, pitch txoj kab uas hla, taper thiab xov qhov siab, ua ke nrog kev tshuaj xyuas qhov muag rau kev puas tsuaj thiab kos ntawm cov xov profile. API 5CT txhais qhov kev lees txais sawv cev - tawm thiab ntsuas kev xyaum rau txhua daim ntawv xov.
Q: Cov couplings puas tuaj yeem tsim los ntawm qib siab dua cov yeeb nkab?
Yog lawm. Kev sib txuas qib siab dua tau tso cai yog qhov kev sib txuas tseem ua tiav cov qauv tsim thiab ua kom - cov kev xav tau, thiab nws yog ib qho kev coj ua uas xav tau kev sib koom ua ke ntxiv.
Q: Cov cim dab tsi yuav tsum tshwm sim ntawm kev sib txuas?
Qib, qhov loj me, qhov hnyav, xov daim ntawv, cov chaw tsim khoom thiab cov xov tooj cua sov, thov kom cov coupling tuaj yeem taug qab mus rau nws daim ntawv pov thawj zeb thiab rau cov yeeb nkab uas nws khiav nrog.
