Qhov zoo tshaj plaws corrosion-resistant Nickel alloys rau siv nyob rau hauv tshav kub exchangers

Qhov zoo tshaj plaws corrosion-resistant Nickel alloys rau siv nyob rau hauv tshav kub exchangers

Thaum tshav kub kub exchangers muaj nyob rau hauv fais fab nroj tsuag, chemical processing plant, petrochemical production plant, waste treatment systems, and oil and gas processing, piv txwv li. Kev lag luam nuclear kuj tseem siv cov khoom siv hluav taws xob los pab kom txias lossis cua sov nws cov tshuab.

Muaj ntau yam sib txawv ntawm cov khoom siv hluav taws xob sib txawv hauv kev lag luam, los ntawm ob qho yooj yim - yeeb nkab kub exchangers, mus rau ntau txoj kev teeb xws li plhaub thiab raj kub exchangers thiab phaj los yog phaj thiab plhaub kub exchangers.

Thaum tshav kub kub exchangers feem ntau yog siv los pab recycle cov khoom pov tseg, tsim kom muaj zog ntau dua. Cov chimneys ntev thiab cov pa luam yeeb nyob rau saum lub tshuab hluav taws xob tso tawm cov khoom pov tseg uas yog los ntawm - khoom ntawm cov txheej txheem kev lag luam. Txawm li cas los xij, qhov koj tsis tuaj yeem pom yog tias feem ntau muaj cov hluav taws kub sib hloov hauv cov chimneys. Raws li cov pa luam yeeb kub nce, nws dhau los ntawm lub tshav kub exchanger uas pab ua kom dej sov, uas tuaj yeem xa rov qab mus rau hauv cov nroj tsuag nws tus kheej. Qhov no tuaj yeem siv los coj cov cua sov ncaj qha rov qab mus rau hauv cov txheej txheem ua haujlwm raws li qhov xav tau, lossis hloov pauv kom muab cov cua sov rau lwm qhov, rov ua dua li lwm yam uas yuav raug pov tseg thaum tshav kub kub.

Cov khoom siv hluav taws xob no ib txwm yuav tsum tau ua haujlwm hauv cov xwm txheej nyuaj. Feem ntau muaj qhov kub thiab txias, nrog rau kev sib cuag ncaj qha nrog cov kua thiab cov pa sib txawv uas tuaj yeem ua rau corrosive heev. Cov ntaub ntawv siv los tsim cov kav dej uas siv rau hauv cov khoom siv hluav taws xob sib txawv yog li yuav tsum muaj kev tiv thaiv corrosion heev, zoo nyob rau hauv kev kub siab thiab muaj peev xwm tiv taus qhov kub thiab txias heev.

Nws tsis yog ib txwm hlau uas siv rau hauv cov khoom siv hluav taws xob. Qee qhov xwm txheej, ceramics tuaj yeem siv tau, xws li cov khoom sib xyaw lossis cov yas. Ceramic tubes yog qhov zoo rau qhov tshwj xeeb siab - siv qhov kub thiab txias, nrog rau qee qhov kev mob corrosive. Yas yog lub teeb yuag thiab pheej yig, tab sis lawv tsis muaj zog heev thiab tsis tuaj yeem tiv taus siab heev - cov txheej txheem kub. Qee zaum lawv tuaj yeem pom nyob rau hauv tej yam xws li cov pas dej da dej, qhov twg qhov kub hloov pauv qhov kub tsis tshua muaj ntau dhau.

Ntau cov hlau kuj tseem siv rau hauv cov khoom siv hluav taws xob, tshwj xeeb tshaj yog rau kev siv tshuab thiab kev siv tshuab. Muaj ntau qhov kev txiav txim siab uas tus kws tsim qauv tsim yuav tsum tau xav txog thaum nws los txog rau kev xaiv cov khoom siv rau cov khoom siv hluav taws xob thiab nws cov khoom.

Qhov no suav nrog kev xav txog lub siab uas cov khoom yuav raug, qhov kub thiab txias ntawm kev ua haujlwm, cov kua dej hauv lub cev, qhov yooj yim ntawm kev tu thiab kho, thiab lub peev xwm xav tau. Tau kawg, tus nqi kuj yog qhov tseem ceeb hauv kev xaiv cov khoom siv rau cov haujlwm loj -.

Thaum cov hlau xws li tooj liab, txhuas, carbon hlau, stainless hlau thiab titanium yog txhua yam kev xaiv, thaum nws los txog rau qhov kev tiv thaiv zoo tshaj plaws thiab nyuaj rau ib puag ncig, cov nickel alloys feem ntau siv vim lawv lub zog, corrosion kuj, siab -kub tsis kam thiab ua haujlwm ntev.

Muaj ntau lub siab -kev ua tau zoo nickel alloys uas tuaj yeem ua haujlwm hauv cov khoom siv hluav taws xob sib txawv ntawm cov ntawv thov kev lag luam sib txawv. Cov no feem ntau yog muab los ua cov kav dej lossis cov raj hauv kev xaiv ntawm cov khoom sib txawv, qee qhov peb tau piav qhia hauv qab no.

INCONEL alloy 625 yog xws li ntau yam npib tsib xee alloy uas nws cov qoob loo nce lub sijhawm thiab sijhawm dua rau txhua yam kev siv hauv kev lag luam. Nrog nws lub zog siab heev, zoo heev fabricability thiab zoo heev corrosion kuj, nws tsis muaj surprise tias nws plays ib feem nyob rau hauv zus tau tej cov tshav kub exchangers ib yam nkaus thiab.

Vim nws muaj peev xwm tiv taus cov kua dej corrosive heev, nws feem ntau yog ua haujlwm hauv dej hiav txwv -raws li cov khoom siv hluav taws xob hauv cov refineries, fais fab nroj tsuag thiab cov kev pab cuam sab saum toj. Nws tuaj yeem siv rau hauv kev pabcuam kub los ntawm cryogenic mus txog 1,800 degree, uas yog qhov zoo tshaj plaws rau cov khoom siv hluav taws xob hauv ntau qhov chaw. Nrog rau kev suav nrog molybdenum thiab niobium hauv cov hlau alloy, nws kuj muaj zog heev, ua rau nws muaj peev xwm tiv taus lub siab ntawm kev sib hloov cua sov.

Cov nickel alloy no tau nyob ib puag ncig ntev - dhau 50 xyoo qhov tseeb. Nyob rau hauv lub sij hawm ntawd, nws tau txais ib lub koob npe nrov rau nws corrosion kuj. Vim tias nws muaj kev tswj hwm tus nqi ntawm tungsten hauv cov khoom sib xyaw, nws yog siv rau hauv cov cheeb tsam uas muaj corrosive, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem tshuaj uas muaj corrosive kua thiab gases.

Qhov kev tiv thaiv corrosion ua rau nws yog qhov kev xaiv zoo rau kev siv hauv cov khoom siv hluav taws xob hauv cov chaw nyuaj no. Cov khoom siv tau siv rau cov khoom siv tshuaj lom neeg, kev ua zaub mov thiab kev ua tshuaj. Muaj cov qib siab ntawm molybdenum nyob rau hauv cov hlau no, thiab qhov no yuav pab tiv thaiv ntau lub zos corrosion, xws li pitting.

Qhov no INCONEL alloy yog tswj kev sib xyaw ntawm npib tsib xee, chromium thiab hlau, thiab nws yog cov khoom siv hauv kev lag luam tshuaj, kev lag luam tsheb thiab kev lag luam aerospace. Nws yog nrov heev hauv cov kev lag luam no vim nws cov khoom sib txawv, suav nrog kev ua haujlwm zoo corrosion, zoo siab -kub tsis kam, siab zog thiab kav ntev, thiab ua haujlwm zoo.

Qhov no tag nrho - rounder feem ntau yog ua haujlwm nyob rau hauv ib puag ncig uas cov ntaub ntawv muaj kev pheej hmoo ntawm chloride-ion stress-corrosion cracking, uas nws muaj kev tiv thaiv zoo. Nws kuj muaj qhov ua tau zoo ntawm kev ua haujlwm kub ntawm cryogenic mus rau 1,095 degree.

INCOLOY alloy 800 yog cov khoom siv uas feem ntau siv rau cov khoom siv hluav taws xob sib txawv hauv kev tsim hluav taws xob. Nws yog ib qho kev sib xyaw ntawm hlau, npib tsib xee thiab chromium uas yog tsim los kom muaj cov ntsiab lus carbon tsawg los tiv thaiv carburisation. Nws kuj tseem tiv taus oxidation thiab muaj zog siab. Nws qhia tau hais tias muaj kev tiv thaiv zoo rau thermal cycling, txhais tau hais tias nws feem ntau raug rau qhov kub thiab txias, ua rau nws zoo meej rau kev siv hauv tshav kub exchangers.

Nyob rau hauv ib puag ncig nyuaj ntawm kev ua tshuaj lom neeg thiab petrochemical, tshwj xeeb tshaj yog nyob rau hauv muaj cov nitric acid thiab qhov chaw tiv thaiv chloride -ion kev nyuaj siab- corrosion cracking yuav tsum, INCOLOY alloy 800 yog ib qho kev xaiv rau cov khoom siv hluav taws xob. Nws yog feem ntau siv nyob rau hauv domestic khoom ib yam nkaus thiab, xws li yog nws versatility. Nws kuj tseem siv tau rau hauv kev ua roj av uas cov khoom siv hluav taws xob siv los ua cua txias rau cov txheej txheem ntws.

Variants ntawm INCOLOY alloy 800, uas yog 800H thiab 800HT, kuj yog siv rau cov cua sov exchangers, piv txwv li nyob rau hauv cov pa roj -cooled nuclear reactors qhov twg muaj exceptional kub.

MONEL alloy 400 yog lwm cov nickel alloy uas tau nyob ib puag ncig rau lub sijhawm ntev, thaum tseem tshuav cov khoom siv hauv kev siv qee yam. Nws tau qhia txog kev ua lag luam rov qab rau xyoo 1905 thiab nws txoj kev siv tseem ceeb yog hauv cov roj av distillation ntauwd sab hauv, twj thiab li qub.

Nws cov npe ntawm daim ntawv thov yog puas tau - loj hlob, thiab ib qho kev siv yog cov khoom siv hluav taws xob sib txuas hauv ntau qhov kev lag luam sib txawv. Piv txwv li, nws yog siv nyob rau hauv chemical ua, rau txheej txheem hlab ntsha thiab piping, boiler feedwater heaters thiab deaerating heaters. Cov khoom muaj zog thiab toughness nyob rau hauv ib tug dav kub khiav hauj lwm ntau yam.

Hu rau tam sim no

Yog tias koj xav paub ntau ntxiv txog peb cov nickel alloy qib uas zoo siv rau hauv cov khoom siv hluav taws xob, thov hu rau peb cov neeg muag khoom hnub no.