Thaum koj qhia lub pob tw weld luj tshib, ib qho ntawm thawj qhov kev txiav txim siab yog qhov khoov vojvoog. Ntev vojvoog (LR) thiab luv vojvoog (SR) lub luj tshib zoo sib xws tab sis coj txawv txawv hauv cov kav dej. Phau ntawv qhia no piav qhia txog dab tsi ua rau lawv sib nrug, teev cov qauv qhov ntev, sib piv cov dej ntws thiab qhov chaw ua haujlwm, thiab qhia seb yuav xaiv li cas ntawm lawv rau cov kav dej txhuas. Nws kuj tseem suav nrog cov khoom siv GNEE alloys, yuav ua li cas, ntim, thiab tshuaj xyuas.
Lub pob tw weld luj tshib yog cov yeeb nkab haum uas hloov cov kev taw qhia ntawm ntws. Ob qhov kawg yog beveled rau tag nrho cov nkag mus rau hauv cov yeeb nkab, yog li qhov sib koom ua ke sib phim lub zog ntawm cov yeeb nkab nws tus kheej thiab tawm hauv qhov du, crevice dawb bore. Aluminium lub luj tshib yog siv qhov hnyav, tiv thaiv corrosion, thiab thermal lossis hluav taws xob muaj teeb meem: marine thiab offshore, seawater thiab chemical systems, cryogenic thiab huab cua sib cais cov nroj tsuag, thiab cov txheej txheem sib sib zog nqus.
Dab tsi yog Ntev Radius (LR) Aluminium Luj Tshib
Lub luj tshib ntev ntev muaj qhov nruab nrab khoov vojvoog sib npaug li 1.5 npaug ntawm cov yeeb nkab nominal loj (1.5D). Rau lub luj tshib 90 degree, qhov nruab nrab mus rau qhov kawg qhov sib npaug sib npaug ntawm lub vojvoog, yog li 4 nti NPS LR lub luj tshib ntsuas txog 6 ntiv tes los ntawm nruab nrab mus rau lub ntsej muag. Qhov dav cheb muab ib qho kev hloov maj mam hloov. Qhov ntawd txo qis kev sib txhuam, kev sib txhuam poob, thiab kev poob siab, thiab nws txo qis kev pheej hmoo ntawm kev yaig ntawm qhov khoov. LR lub luj tshib yog lub neej ntawd rau feem ntau cov txheej txheem thiab kev lag luam piping thiab yog dimensioned rau ASME B16.9.
Dab tsi yog Short Radius (SR) Aluminium Luj Tshib
Lub luj tshib luv luv muaj qhov nruab nrab khoov vojvoog sib npaug rau cov yeeb nkab nominal loj (1.0D). 4 nti NPS SR lub luj tshib ntsuas txog 4 ntiv tes nruab nrab ntawm lub ntsej muag. Qhov khoov yog nruj dua thiab ntau dua, uas txuag qhov chaw hauv cov txheej txheem congested, tab sis nws ua rau muaj kev kub ntxhov ntau dua thiab kev poob siab dua. SR lub luj tshib yog dimensioned rau ASME B16.28 thiab tsuas yog xaiv qhov twg lub vojvoog ntev cheb yuav tsis haum.
LR vs SR Luj tshib: Qhov txawv tseem ceeb
|
Parameter |
Ntev Radius (LR) Luj Tshib |
Luv Radius (SR) Luj Tshib |
|
Centerline vojvoog |
1.5 x NPS (1.5D) |
1.0 x NPS (1.0D) |
|
Txoj cai dimension |
ASME B16.9 |
ASME B16.28 |
|
Center rau kawg (90 deg, NPS 4) |
152mm (6 nyob rau hauv) |
102mm (4 nyob rau hauv) |
|
Flow resistance (K yam) |
qis, feem ntau ~ 0.30 rau 90 deg |
Siab dua, feem ntau 0.45 txog 0.9 rau 90 deg |
|
Siab poob |
qis |
Siab dua |
|
Qhov chaw xav tau |
Ntau |
Tsawg (compact) |
|
Turbulence thiab erosion txaus ntshai |
qis |
Siab dua |
|
Hom NPS ntau yam |
1/2 rau 48 |
1/2 rau 24 |
|
Kev siv |
Cov txheej txheem piping, marine, siab txaus |
Tight racks, skids, offshore, rov qab |
K qhov tseem ceeb saum toj no yog cov ntaub ntawv siv tau zoo rau 90℃luj tshib. Cov txiaj ntsig zoo nyob ntawm geometry thiab yuav tsum tau muab los ntawm Crane Technical Paper 410 lossis qhov project hydraulic qauv.
Center to End Dimensions (90 Degree)
Qhov nruab nrab mus rau qhov kawg qhov ntev (A) tsuas yog nyob ntawm qhov loj nominal thiab lub vojvoog hom. Nws tsis hloov nrog phab ntsa thickness los yog teem caij. Cov nqi hauv qab no yog cov npe siv los ntawm ASME B16.9 thiab ASME B16.28.
|
NPS |
Sab nraud txoj kab uas hla (mm) |
LR Center mus kawg (mm) |
SR Center mus kawg (mm) |
|
2 |
60.3 |
76 |
51 |
|
4 |
114.3 |
152 |
102 |
|
6 |
168.3 |
229 |
152 |
|
8 |
219.1 |
305 |
203 |
|
10 |
273.0 |
381 |
254 |
|
12 |
323.8 |
457 |
305 |
Rau lub luj tshib 45 degree, qhov nruab nrab mus rau qhov kawg tsis yog ib nrab ntawm 90℃daim duab. Nws yog lub vojvoog sib npaug los ntawm tan (22.5 degrees), txog 0.62D rau lub vojvoog ntev . 45℃luj tshib yog nkag rau hauv lub vojvoog ntev; Lub vojvoog luv luv 45℃tsis yog cov khoom lag luam tus qauv thiab ua rau kos duab . 180℃rov qab muaj nyob rau hauv LR thiab SR.
Kev Ua Haujlwm: Flow, Siab Poob, thiab Chaw
Lub vojvoog tswj yuav ua li cas sai li sai tau cov ntws tig. Lub luj tshib ntev nthuav dav qhov kev hloov pauv ntawm qhov ntev arc, yog li cov kua dej poob qis zog thiab khoov nyob twj ywm txias dua thiab huv si hauv kev pabcuam. Lub luj tshib luv luv ua rau lub ntsej muag ntse dua, uas ua rau lub zos tshaj tawm ntawm cov phab ntsa sab nrauv thiab ua rau kom lub siab poob thiab muaj feem cuam tshuam rau corrosion, tshwj xeeb tshaj yog nrog kev tshaj tawm siab lossis abrasive xov xwm.
Ib txoj cai ntawm tus ntiv tes xoo los ntawm cov ntaub ntawv hydraulic yog tias lub vojvoog ntev 90℃lub luj tshib ntxiv roughly 6 yeeb nkab diameters ntawm qhov sib npaug ncaj cov yeeb nkab ntev rau lub cev, thaum lub vojvoog luv luv 90℃luj tshib ntxiv roughly 12. Tshaj ib txoj kab ntev, cov kev poob ntxiv txhais tau hais tias muaj zog ntau dua los yog compressor zog.
Lub siab ntsuas ntawm lub luj tshib yog teem los ntawm alloy, temper, phab ntsa thickness (teeb), qhov kub thiab txias, thiab cov kav dej siv code, tsis yog los ntawm lub vojvoog. Lub vojvoog ntev thiab lub luj tshib luv luv ntawm tib qhov loj, alloy, thiab lub sijhawm muaj tib lub siab tso cai. Tsis txhob nyeem qhov ntsuas kub ntawm lub rooj steel thiab siv rau txhuas; aluminium tsis them los ntawm cov rooj ntsuas steel hauv ASME B16.9, thiab tus nqi yuav tsum raug tsim los ntawm kev tsim.
Yuav Ua Li Cas Xaiv Ntawm LR thiab SR
Siv lub luj tshib ntev ntev tshwj tsis yog qhov chaw quab yuam. LR yog tus qauv xaiv rau cov txheej txheem kav dej, cov kab nyob deb, cov twj tso kua mis, cov kev pabcuam siab tshaj plaws, thiab txhua txoj kab nqa slurry lossis cov kua dej abrasive.
Siv lub luj tshib luv luv tsuas yog thaum lub hnab ntawv routing tsis tuaj yeem lees txais LR cheb. Cov xwm txheej zoo li yog sab ntug dej hiav txwv sab saum toj, kev tsim khoom nkoj, kev sib tsoo mounted units, heat exchanger manifolds, thiab congested yeeb nkab racks. Vim tias qhov khoov nruj dua ua rau muaj kev poob siab thiab kev pheej hmoo yaig, SR feem ntau zam rau cov pa hluav taws xob siab, erosive slurries, lossis cov kab piggable tshwj tsis yog tias qhov teeb tsa xav tau.
Aluminium Luj TshibCov ntaub ntawv thiab vim li cas thiaj xaiv Aluminium
Aluminium taub qab vuam lub luj tshib tau teev rau ASTM B361 (Lub Hoobkas ua wrought aluminium alloy vuam fittings). Dimensions ua raws ASME B16.9 rau LR thiab ASME B16.28 rau SR. Weld xaus yog npaj rau ASME B16.25. Cov khoom siv dav dav GNEE muaj xws li:
6061 T6: nruab nrab lub zog siab, zoo weldability, kev tsim qauv thiab txheej txheem piping.
5083 Olos yog H116: marine qib, muaj zog seawater corrosion kuj, siv nyob rau hauv shipbuilding thiab offshore.
6063 T5 los yog T6: zoo formability thiab tiav, architectural thiab lub teeb lub luag hauj lwm kab.
3003: formable, nruab nrab lub zog, dav corrosive thiab tsis tshua muaj kev pab cuam.
5086 thiab 6082: marine thiab structural siv.
1050 lossis 1060: kev lag luam ntshiab, zoo heev corrosion thiab thermal lossis hluav taws xob conductivity rau tshuaj, HVAC, thiab kev pabcuam cryogenic.
Xaiv cov txhuas thaum qhov hnyav txuag teeb meem (qhov ceev txog 2.7 g / cm3, kwv yees li ib feem peb ntawm cov pa roj carbon steel), thaum nruab nrab yog dej hiav txwv los yog me me corrosive, los yog thaum cryogenic los yog tsis muaj hlau nplaum yuav tsum tau. Vim tias kev sib sau thiab vuam tuaj yeem hloov kho cov cua sov, qhov kev ua tiav tiav yuav tsum raug ntsuas raws li qhov project specification.
Daim ntawv thov
Ntev vojvoog aluminium luj tshib yog siv nyob rau hauv:
Marine thiab offshore piping qhov chaw tso cai rau cheb tag nrho
Seawater, ballast, thiab dej txias tshuab
Kev ua tshuaj lom neeg thiab cua cais cov nroj tsuag
Cryogenic thiab kub tsis tshua muaj kab
Pump suction thiab tso tawm qhov twg tsis tshua muaj teeb meem
General txheej txheem thiab instrumentation piping
Short radius aluminium luj tshib yog siv nyob rau hauv:
Offshore platforms thiab shipboard qhov chaw nrog nruj routing
Skid mounted thiab containerized txheej txheem units
Thaum tshav kub kub exchanger rov khoov thiab compact manifolds
Cov yeeb nkab racks qhov twg LR cheb yuav sib tsoo nrog lwm cov kab
Tsis tshua muaj siab, qis tshaj tawm, tsis muaj kev pabcuam tseem ceeb
Aluminium luj tshib Specifications
|
Yam khoom |
Specification |
|
Khoom |
Ntev vojvoog thiab luv luv radius aluminium luj tshib |
|
Khoom txheem |
ASTM B361 (ASME SB 361) |
|
Dimension txheem |
ASME B16.9 (LR), ASME B16.28 (SR) |
|
Bevel txheem |
ASME B16.25 |
|
Cov hlau nplaum |
1060, 1050, 3003, 5083, 5086, 6061, 6063, 6082 |
|
Kub |
O, H112, H116, T4, T5, T6 raws li muaj |
|
Lub kaum sab xis |
45 Deg (LR), 90 Deg (LR / SR), 180 Deg (LR / SR) |
|
Radius |
LR 1.5D, SR 1.0D, kev cai 3D lossis 5D ntawm kev thov |
|
Qhov ntau thiab tsawg |
NPS 1/2 txog 48 tus qauv, loj dua ntawm kev thov |
|
Phab ntsa thickness |
Teem sijhawm 5S, 10S, 40S, 80S lossis phab ntsa |
|
Kev sib txuas |
Butt welding, beveled xaus |
|
Kev tsim kho |
Seamless tsim, welded, los yog fabricated |
|
Cov ntaub ntawv |
MTC EN 10204 3.1, cov ntaub ntawv tshuaj xyuas |
Ntim
Lub luj tshib tau ntim los tiv thaiv qhov kawg ntawm beveled thiab lub zeb tiav thaum lub sijhawm thauj mus los. Standard packing siv fumigation free ntoo rooj los yog pallets nrog separators kom fittings tsis rub. Rau kev thauj khoom hiav txwv peb ntxiv cov ntaub thaiv dej tsis zoo thiab cov khoom desiccant kom txwv cov oxidation saum npoo. Kev txiav txim loj lossis kev cai yog crated rau cov khoom zoo nrog lub kaus mom kawg thiab cov cim meej ntawm cov hlau, qhov loj, lub vojvoog, thiab cov xov tooj cua sov.
Kev tshuaj xyuas thiab kuaj
GNEE siv cov tshev hauv qab no ua ntej xa khoom xa tuaj:
Cov ntaub ntawv pov thawj: tshuaj xyuas cov ntaub ntawv pov thawj raw khoom thiab kev txheeb xyuas cov khoom zoo (PMI) thaum tau teev tseg.
Dimensional soj ntsuam: sab nraud txoj kab uas hla, phab ntsa thickness, nruab nrab mus rau qhov kawg, thiab squareness soj ntsuam tiv thaiv ASME B16.9 los yog B16.28.
Phab ntsa thickness check: ntsuas ntawm khoov thiab paub meej tias qhov tsawg kawg nkaus phab ntsa tom qab tsim.
Kev tshuaj xyuas qhov pom thiab qhov chaw: xyuas cov kab nrib pleb, folds, thiab qhov tsis xws luag.
Weld thiab NDT: dye penetrant testing (PT) lossis radiographic testing (RT) rau fabricated welds thaum teev.
Kev ntsuas siab: ntsuas hydrostatic lossis pneumatic tsuas yog thaum xav tau los ntawm kev yuav khoom.
Cov ntaub ntawv: cov ntaub ntawv pov thawj (MTC EN 10204 3.1) thiab daim ntawv tshaj tawm tshuaj xyuas nrog cov khoom xa tuaj.
Kev tshuaj xyuas thib peb los ntawm SGS, BV, lossis DNV tuaj yeem npaj tau raws li kev thov.
Vim li cas GNEE
GNEE yog lub chaw tsim khoom ntawm txhuas yeeb nkab haum nrog 18 xyoo ntawm kev xa tawm. Peb muab ob lub vojvoog ntev thiab luv luv aluminium luj tshib nyob rau hauv ntau yam alloys, tempers, ces kaum, thiab phab ntsa thicknesses, thiab peb yuav muab ob peb specifications thiab ntau thiab tsawg pab nyob rau hauv ib qho kev txiav txim. Peb qhov kev txiav txim yam tsawg kawg nkaus yog hloov tau thiab tau teeb tsa los ntawm qhov loj thiab qhov ntau ntawm txhua yam khoom, yog li ob qho tib si kev txiav txim mus sib hais thiab cov phiaj xwm loj tau txais kev txhawb nqa. Standard sizes nkoj nyob rau hauv li 15 mus rau 35 hnub; Kev cai lossis kos cov khoom siv sijhawm li 25 txog 45 hnub. Txhua qhov kev txiav txim suav nrog MTC thiab tuaj yeem muab nrog rau kev tshuaj xyuas thib peb.
FAQ
Qhov txawv ntawm ib lub vojvoog ntev thiab lub luj tshib luv luv yog dab tsi?Centerline khoov vojvoog. Lub luj tshib ntev yog 1.5 npaug ntawm cov yeeb nkab nominal loj (1.5D) thiab lub luj tshib luv luv yog 1.0 npaug ntawm cov yeeb nkab nominal (1.0D). Lub vojvoog luv luv yog ntau compact tab sis tsim ntau lub siab poob.
Tus qauv twg npog aluminium LR thiab SR luj tshib?Dimensions ua raws ASME B16.9 rau lub vojvoog ntev thiab ASME B16.28 rau luv vojvoog. Cov khoom siv tshwj xeeb rau aluminium fittings yog ASTM B361. Weld xaus yog npaj rau ASME B16.25.
Puas yog lub luj tshib luv luv puas muaj qhov ntsuas qis dua li lub luj tshib ntev?Tsis yog. Lub siab tso cai yog nyob ntawm cov hlau, qhov kub thiab txias, phab ntsa tuab, qhov kub thiab txias, thiab cov kav dej tsis yog nyob ntawm lub vojvoog. Ib qho LR thiab SR lub luj tshib ntawm tib qhov loj, alloy, thiab lub sijhawm muaj tib lub siab tso cai. Aluminium ratings yuav tsum tau tsim los ntawm kev tsim thiab tsis tau nyeem los ntawm steel rating rooj.
Kuv puas tuaj yeem tau txais 45℃luv luv radius luj tshib?45℃luj tshib yog muab nyob rau hauv lub vojvoog ntev. Lub vojvoog luv luv 45℃tsis yog cov khoom lag luam tus qauv thiab yog tsim los rau kev pom zoo kos duab thaum xav tau.
Lub luj tshib luv luv npaum li cas thiaj txuag tau?Qhov nruab nrab ntawm qhov kawg ntawm SR 90℃luj tshib sib npaug ntawm cov yeeb nkab nominal, thaum lub luj tshib LR 90℃sib npaug 1.5 npaug ntawm cov yeeb nkab nominal. Rau 6 nti kab, uas yog 152 hli piv rau 229 hli nruab nrab mus rau qhov kawg.
Dab tsi yog aluminium alloys muaj rau lub luj tshib?Cov qib sib xws yog 6061 T6, 5083 O lossis H116, 6063, 3003, 5086, 6082, thiab cov khoom lag luam ntshiab 1050 lossis 1060. Qhov kev xaiv nyob ntawm lub zog, kev tiv thaiv corrosion, thiab kev pabcuam kub.
Cov ntaub ntawv dab tsi uas kuv xav tau los thov kev tsocai?Xa cov alloy thiab temper, lub kaum sab xis, ntev los yog luv luv vojvoog, nominal loj los yog tseeb sab nraud txoj kab uas hla, phab ntsa thickness los yog teem sij hawm, txheem (ASTM B361 / ASME B16.9 los yog B16.28), kom muaj nuj nqis, thiab tej yam kev soj ntsuam los yog daim ntawv pov thawj yuav tsum tau. Yog tias koj muaj daim duab kos rau lub vojvoog lossis qhov loj me, suav nrog nws.
Thov ib daim Quote
Qhia GNEE koj lub luj tshib, lub vojvoog, qhov loj me, alloy, phab ntsa tuab, thiab ntau, thiab peb yuav xa rov qab cov lus hais nrog lub sijhawm ua haujlwm. Rau kev cai ntau thiab tsawg tshaj li tus qauv, xa ib daim duab nrog rau sab nraud txoj kab uas hla, phab ntsa thickness, lub kaum sab xis, vojvoog, nruab nrab mus rau qhov kawg, thiab hom kev twb kev txuas. Peb tuav cov lus qhia sib xyaw thiab ntau qhov kev txiav txim nrog MOQ hloov tau thiab txhawb nqa ob qho tib si mus sib hais thiab kev yuav khoom ntau.
