Dab tsi yog qhov dej hauv tsev tu dej?
Zoo li cov dej khaw dej sab nraud, cov yeeb nkab dej hauv tsev yog muab faib ua ob pawg: cov yeeb nkab hlau thiab cov yeeb nkab tsis txuas.
1, hlau raj
Tam sim no, muaj ntau ntau cov kav dej hlau siv ntau hauv tsev uas siv los siv, xws li cov kav hlau, cov kav dej, txhuas hlau, thiab cov kav dej.
1.1 hlau yeeb nkab
Cov yeeb nkab muaj cov ntsiab lus ntawm cov hlua hlau txuas thiab cov yeeb nkab tsis muaj hlua; nyob rau hauv cov nqe lus ntawm anti-corrosion kev ua tau zoo, nws muaj peev xwm raug muab faib ua hom txheej tiv thaiv, kev tiv thaiv hom txheej txheem thiab kev ntxhib los mos; raws li phab ntsa thickness, muaj cov zoo tib yam steel yeeb thiab tuab hlau yeeb nkab. Cov txheej txheem tiv thaiv txheej txheem muab faib ua ib hom hlau thaiv txheej txheem thiab ib hom kab uas tsis yog hlau thaiv. Cov txheej txheem tsis muaj xim tiv thaiv txheej txheem muaj steel hlau yas yeeb nkab yeeb nkab, thiab cov hlau tiv thaiv txheej txheem muaj lub plhaub nplaum tiv thaiv txheej txheem ntim siab-tsev tiv thaiv txheej txheem. Ntim txheej txheej tiv thaiv tau txias thiab kub-dip galvanized steel kav, thiab saum npoo xov tooj thiab tiv thaiv.
Feem ntau welded steel yeeb nkab, tsis sib haum seamless steel yeeb nkab, steel hlau yeeb nkab thiab galvanized steel yeeb nkab muaj cov ncauj lus kom ntxaws hauv cov qauv tsim ntau yam, thiab lawv daim ntawv thov kev lag luam kuj yog cov neeg paub tab, yog li peb yuav tsis ua kom paub ntxiv. Ntawm no, qhov hlau tsis muaj raj hlau, cov hlau txuas qaum hlau tsis muaj hlau, cov hlau ntom siab tiv thaiv txheej txheem steel tube, lub raj raj thiab cov zoo li cov tswvcuab. 1.1.1 hlau tsis muaj raj hlau
Cov kav hlau tsis muaj steel hlau muaj nyob rau hauv cov hlau tsis muaj hlua khi hlua thiab cov kav hlau tsis muaj hlau tsis muaj hlab pas. Raws li cov thickness ntawm cov yeeb nkab phab ntsa, muaj cov kav hlau tsis muaj kav hlau thiab nyias-walled stainless hlau kav. Kev nce qib thiab daim ntawv thov thin-walled stainless hlau kav uas tshwm nyob rau hauv Suav teb thaum xyoo 1990 tau maj mam txais thiab txais los ntawm txhua tus neeg.
1.1.1.1 Nyias tawv hlau tsis xeb hlau
Kev sib tw uas nyias txhuam yeeb nkab uas kho tau los ntawm txoj kev vuam voog tshwj xeeb muaj lub zog siab, ib phab ntsa nyias thiab tsawg, uas tau txhawb nqa daim ntawv thov thiab kev txhim kho ntawm cov yeeb nkab hlua. Qhov kev ua tau zoo tshaj ntawm nyias nyias muaj xim tsis muaj tub raj hlau muaj xws li:
(1) Twj zeeg, tu cev *, txhuam kev ua kom zoo thiab kev tiv thaiv ib puag ncig zoo.
(2) Muaj kev cuam tshuam tsis zoo. Lub zog ntawm lub raj xa dej zoo nrog kev sib txuas zoo txuas (xws li kev sib txuas tshuab fais fab thiab sib txuas) yog 2-3 zaug ntawm cov yeeb nkab uas sib nkaug thiab cov yeeb nkab tsis sib txuas.
(3) Zoo toughness. Nws yooj yim dua li cov hlau tsis yooj yim, yooj yim rau kev sib tw, tsis yooj yim keej, tsis yooj yim rau kev tawg.
(4) Txais kev paub tab thiab paub ntau yam kev sib txuas ntawm kev siv tshuab, zoo heev kev txhim kho cov kev kawm thiab kev ua haujlwm ntawm qhov haujlwm.
Cov yeeb nkab tsis muaj qhov txuas [7]: Cov yeeb nkab hom yog compression type, compression type, laub hom, welding hom thiab kev sib txuas ntawm series thiab kev sib txuas kev sib txuas.
Cov kav hlau uas tsis txhuam hauv cov raj siv rau cov kav dej hauv cov kav dej siv lossis cov khoom siv hauv tsev siab rau hauv tsev sab hauv cov phab ntsa hauv cov vaj tse vim lawv cov yeeb nkab nqi.
1.1.1.2 Ultra-thin phab ntsa stainless hlau yas yeeb nkab yeeb nkab
Lub ultra-thin phab ntsa stainless hlau yas yeeb yeeb yeeb nkab yog ib yam tshiab ntawm yeeb nkab ua los ntawm ib txheej txheej ntawm ultra-nyias ntsa stainless hlau yeeb nkab, ib txheej txheej yas yeeb nkab thiab ib nrab nplaum.
Nws cov kev ua tau zoo:
(1) Sab nraud stainless hlau yeeb nkab phab ntsa yog thinner, sab hauv sab hauv yas yas yeeb nkab phab ntsa thickness kuj txo, thiab cov khoom tseem ceeb nqe txo ntxiv.
(2) Cov hlau tsis muaj hlau ntxig cov yas hlau tawm hauv ntiaj teb sab nraud, ua rau cov kev tsis haum ntawm cov yas yas oxidative, thiab ua kom cov nplaim hluav taws kub thiab ua kom muaj zog ntawm lub raj yas.
(3) Cov lus sibtham hauv nruab nrab muaj kev tiv thaiv ntawm cov kav hlau yas, thiab coefficient ntawm linear expansion ntawm cov yeeb nkab yog me me.
Stainless hlau bonded yeeb nkab fittings, stainless hlau, tooj liab thiab lwm ferrule fittings yuav siv tau, thiab txoj kev txuas tau ntau yam thiab yooj yim rau nruab. Nws tuaj yeem tsim thiab tsim ua raws li cov qauv uas twb muaj lawm hauv cov kav dej yas. Cov kev siv tam sim no ntawm cov raj xa dej muaj ntau tshaj kaum hom diameter ntawm 16-110 hli.
1.1.2 steel hlau yas composite steel yeeb nkab
Hlau-hlau composite steel yeeb nkab yog tsim los ntawm cov dej-coated yas composite steel yeeb thiab dej-lined yas composite steel yeeb.
1.1.2.1 Cov yeeb nkab ntawm cov dej yas co-coated yas
Cov khoom zoo ntawm cov dej coated yas ua kab yas yog:
(1) Muaj kev nyab xeeb thiab huv, tsis muaj nqi.
(2) Zoo tiv thaiv corrosion kev ua tau zoo, acid acid, alkali tiv thaiv, kub kub ua hauj, lub zog thiab lub neej ntev kev pab. Cov kev cuam tshuam tsis zoo rau cov khoom siv dag zog.
(3) Qhov nruab nrab txoj kev tsis haum yog qis dua 40% ntawm cov yeeb nkab.
Cov kev qhia ntau yam muaj ntau tshaj 10 nominal diameters DN15-DN150. Cov yeeb nkab uas muaj hlua yas coated yog txuas nrog peb hom: yeeb nkab xov, flange thiab zawj.
1.1.2.2 Cov kab yas dej sib txuas nrog dej yas
Kev ua tiav ntawm cov dej ntim cov kua dej yas yog zoo ib yam li ntawm cov dej-co-cov yeeb nkab kab yeeb nkab. Rau cov kab hlau yas hauv yeeb nkab, cov thermal conductivity tsawg tsawg, uas txuag cov thickness ntawm cov khoom siv rau kev txuag sov thiab kev ywj pheej. Tsis tas li ntawd, nyob rau hauv lub zuaj ntawm lub dav diam, qhov seem ntawm tus dej me me, thiab cov dej ntws poob thiab qhov kev khiav tawm yog nce. Cov kev qhia ntau yam muaj ntau tshaj 10 nominal diameters DN15-DN150.
1.1.3 Hlau ntom nias tiv thaiv txheej txheem steel yeeb nkab
Qhov chaw siab tawv-tsevneeg tiv thaiv txheej hom no kuj tau muab faib ua lub cev zais zuag hom yeeb nkim steel yeeb thiab ib cov tshuaj blasting npog hom sib xyaw hlau yeeb nkab raws li qhov sib txawv ntau lawm.
1.1.3.1 Lub cev cov yeeb nkab hluav taws xob sib txuas
Lub cev ntim cov yeeb nkab uas tau siv hluav taws xob muaj tau ua nrog steel hlau forged stainless steel yeeb nkab thiab tooj liab hlau bi-hlau sib xyaw hlau yeeb nkab, tag nrho cov uas yog lub cev ntim rau steel hlau los ntawm ib qho kev ua los ntawm ib lub tshav kub-muag muag -walled stainless hlau yeeb nkab lossis ib lub nkev-thin-phab ntsa tooj liab yeeb nkab. Ntawm sab hauv phab ntsa ntawm lub raj.
Nws cov kev ua haujlwm zoo:
Nyob rau hauv ib sab, nws nqa mus rau qhov zoo ntawm kev kub siab ua haujlwm (2.5MPa), siab ua haujlwm, dav npaum li kub (-40-150 ° C) thiab siab zog ntawm galvanized steel yeeb nkab. Ntawm qhov tod tes, nws muaj qhov zoo ntawm galvanized steel yeeb nkab. Cov khoom thaiv thaiv cov dej ntim yog tuab thiab cov leeg ob leeg sib zog *, yog li cov kev xeb hauv corrosion yog muaj zog thiab cov kev ua haujlwm hydraulic zoo.
Cov ntsiab lus ntawm ob kav yog DN15-DN300 thiab DN15-DN150. Kev sib txuas yeeb ncuab feem ntau txuas nrog siv cov khoom tshwj xeeb.
1.1.3.2 Tshuaj lom neeg tua blasting nrog cov yeeb nkab yeeb nkab
Cov tshuaj blasting uas them cov yeeb nkab steel yeeb nkab muaj ib cov yeeb nkab sib txuas bimetallic. Nws yog ib yam tshiab ntawm cov raj tshuaj anticorrosive uas tsim los ntawm 41 lub koom haum Aerospace Science thiab Technology Group, uas yog siv lub tshuab hlwb hlau - "Hlau Pipeline Explosion and Lining Technology". Raws li kev taw qhia [8], qhov khoom tseem siv carbon cov yeeb nkab ua rau cov khoom siv, kev ua si tag nrho rau cov khoom siv yam khoom zoo thiab cov cuab yeej qis ntawm cov yeeb nkab yeeb nkab; siv cov khoom siv corrosion-resistant alloy txheej txheem, muab tag nrho ua si rau qhov zoo heev corrosion ntawm corrosion-resistant alloy, Yog li, bimetal composite yeeb nkab tau zoo heev corrosion kuj thiab zoo meej mechanical zog.
SHANDONG KANGYU YEEB NKAB MUAJ CO., LTD
Hu rau: Eillen
Email: kangyupipes@kangyugy.com
Tel: +008615168998025
