Kev tsim cov hlau ib txwm yog qhov sib npaug ntawm kev ua haujlwm thiab tus nqi. Hauv cov txheej txheem tseem ceeb xws li blast furnace oxygen-enriched thee txhaj, hluav taws xob arc rauv steelmaking, thiab sintering li, lub purity, siab, thiab muab stability ntawm oxygen ncaj qha txiav txim siab zog noj ib tuj thiab ntau lawm ceilings. Ntawm tag nrho cov thev naus laus zis tsim cov pa oxygen, kev sib cais huab cua cryogenic tau dhau los ua lub hauv paus ntsiab lus rau cov khoom siv roj hauv kev sib xyaw steel mills vim nws cov nplai loj, siab purity, thiab kev lag luam zoo.
Los ntawm xyoo ntawm kev ua haujlwm rau kev lag luam metallurgical thiab tshuaj lom neeg, Shenger Gas tau pom tias ntau cov haujlwm steel yuav tsom mus rau kev nqis peev hauv cov cuab yeej pib thaum xaiv cov pa oxygen, thaum saib xyuas kev sib raug zoo ntawm kev sib cais ntawm huab cua cryogenic thiab steel ntau lawm. Tsab ntawv xov xwm no siv qhov kev xav txog engineering los rhuav tshem li cas cryogenic huab cua sib cais tiag tiag ua haujlwm txuas ntxiv thiab hloov pauv ntawm cov hlau ntau lawm.
Vim li cas kev lag luam hlau tsis tuaj yeem ua yam tsis muaj Cryogenic cua sib cais
Cov pa oxygen xav tau hauv cov nroj tsuag steel muaj ob tus yam ntxwv sib txawv: nruam siab - ntim lub hauv paus load thiab ncua sij hawm luv - lub sij hawm peaks. Blast furnaces yuav tsum tsis muaj kev cuam tshuam oxygen enrichment 24/7, thaum converters xav tau instantaneous siab txaus thaum lub sij hawm tshuab.
Txawm hais tias kev sib cais ntawm daim nyias nyias thiab lub siab viav vias adsorption (PSA / VPSA) muaj qhov hloov pauv me me hauv - nplai, nruab nrab- purity scenarios, cryogenic huab cua sib cais tseem yog tib qho kev tsim vaj tsev- kev xaiv paub tab nrog tus nqi qis tshaj oxygen thaum ntsib cov pa oxygen xav tau ntawm kaum tawm txhiab Nm³ / h thiab purity yuav tsum siab tshaj 90%. Siv qis-kub distillation, cryogenic huab cua sib cais cais huab cua rau hauv oxygen, nitrogen, thiab argon, nrog ib zaug - tsheb ciav hlau muaj peev xwm ncav cuag tshaj 100,000 Nm³ / h thiab oxygen purity ruaj khov tshaj 99.6%, ua tau raws li cov txheej txheem steelmaking.
Engineering Matching Ntawm Cryogenic Cua Sib cais thiab Hlau Ntau Lawm Lub Cev
Qhov teeb meem tiag tiag ntawm - cov engineers site tsis tshua muaj seb cov khoom puas tuaj yeem tsim cov pa oxygen, tab sis nws lub peev xwm tig tawm. Kev tsim cov hlau tsis yog ib qho kev thauj khoom tas mus li- kev tu lub tshuab hluav taws xob tawg, kev kaw lub tshuab hluav taws xob, thiab kev kho cov kab dov tuaj yeem ua rau cov pa oxygen xav tau hloov pauv li ntawm 20%-40% hauv ib teev.
Niaj hnub nimno cryogenic huab cua sib cais tshuab feem ntau txais yuav cov txheej txheem paub tab ntawm molecular sieve purification + booster turboexpander + cov txheej txheem ntim khoom. Cov txheej txheem ntim cov kab ke, ua ke nrog DCS tswj qhov system, tso cai rau kev hloov kho du ntawm 30% -105%, thaum lub tshuab ua kua dej (kua oxygen cia tank + vaporizer) tuaj yeem teb rau qhov xav tau siab tshaj hauv feeb. Qhov kev ua haujlwm ua ke ntawm "gaseous ntau lawm + kua cia" tam sim no sawv cev qhov zoo tshaj plaws sib npaug ntawm kev nyab xeeb thiab kev lag luam hauv steel cog oxygen systems.
Los ntawm qhov kev xav ntawm engineering, nyob rau hauv lub qhov dej -tsim cryogenic huab cua sib cais system, gaseous oxygen tsim yuav tsum npog kwv yees li 80% ntawm cov hlau cog qhov nruab nrab cov pa oxygen xav tau, nrog rau qhov sib txawv ncov ntxiv los ntawm cov kua pa pa vaporization. Txoj hauv kev no zam kev siv hluav taws xob ntau ntxiv los ntawm kev hloov pauv ntawm huab cua sib cais thiab txo cov khoom siv dag zog.
Qhov Zoo Tshaj Plaws Kev Ua Haujlwm ntawm Cryogenic Cua Sib cais
Tshaj li oxygen muab nws tus kheej, cryogenic huab cua sib cais muaj ob qho yooj yim saib xyuas qhov tseem ceeb.
Ua ntej, co- tus nqi tsim tawm ntawm nitrogen thiab argon. Kev lag luam steel yuav tsum tsis yog tsuas yog oxygen xwb tab sis kuj nitrogen rau txheej txheem kev tiv thaiv, purging, thiab ntsuas cua. Cryogenic huab cua sib cais tuaj yeem ua ib txhij tsim nitrogen ntawm cov purities sib txawv thaum sib cais cov pa. Rau cov hlau tsis muaj steel, argon yog ib qho tseem ceeb tiv thaiv roj. Cryogenic huab cua sib cais tuaj yeem xa cov pa oxygen, nitrogen, thiab argon ib txhij -ib qho "ib- rau-peb" muaj peev xwm nrog tag nrho lub zog siv hluav taws xob ntau tshaj li ntawm cov khoom sib cais oxygen ntxiv rau cov roj yuav khoom.
Thib ob, muab cov khoom muaj zog los ntawm cov dej cia. Ntau cov phiaj xwm steel tsuas yog tsom rau cov raj xa dej thaum lub sij hawm npaj cov pa roj, tsis quav ntsej txog kev pheej hmoo txo qis los ntawm cov dej cia. Yog tias chav sib cais huab cua tau ntsib qhov kev kaw tsis tau npaj tseg yam tsis muaj cov pa oxygen txaus cia rau ntawm qhov chaw, tag nrho cov nroj tsuag ntsib kev tsim khoom. Mature cryogenic huab cua sib cais tej yaam num feem ntau teeb tsa 48-72 teev ntawm cov kua oxygen backup muaj peev xwm, txo kev lag luam poob los ntawm kev poob qis.
Peb qhov teeb meem yooj yim tsis txaus ntseeg hauv kev xaiv thiab ua haujlwm
Cov teeb meem hauv qab no tshwm sim ntau zaus hauv cov phiaj xwm tiag tiag thiab tsim nyog tau txais kev saib xyuas los ntawm cov tuam txhab steel thaum lub sij hawm tsim kev daws teeb meem:
1. Kev ntseeg tau ntawm cov dej ntws: Cryogenic cua sib cais cia siab rau cov dej txias txias ntau dua li cov neeg feem coob xav txog. Cov dej tawv, qhov kub thiab txias hloov pauv, thiab cov twj tso kua mis rov ua dua -ib qho teeb meem hauv cov cheeb tsam no tuaj yeem ua rau huab cua sib cais. Nws raug pom zoo kom txais yuav "dej dej ob + kev ywj pheej txias ntauwd module" kev teeb tsa ntawm theem tsim.
2. Fais fab system harmonics thiab surge cuam tshuam: loj cua compressor startup cuam tshuam rau cov nroj tsuag lub hwj chim daim phiaj, thaum uas nws kim heev kev sib txawv zaus drives qhia harmonic teeb meem. Cov nroj tsuag hlau lawv tus kheej yog siab - cov neeg siv hluav taws xob nrog cov chaw siv hluav taws xob nyuaj. Kev tsim hluav taws xob rau chav sib cais huab cua yuav tsum tau ua ke nrog cov nroj tsuag - kev suav fais fab dav dav; txwv tsis pub, kev tiv thaiv cov cuab yeej siv tsis raug tuaj yeem tshwm sim.
3. Cov khoom seem thiab kev tu lub voj voog: Molecular sieve hloov lub voj voog, turboexpander bearing lub neej, thiab lub ntsiab tshav kub exchanger siab poob nce tus nqi -cov seem zoo li niaj hnub no, yog mismatched nrog steel cog lub xyoo txij nkawm qhov rais, yuav ua rau cascading unplanned shutdowns. Nws raug nquahu kom thim rov qab - engineers lub steel lub ntsiab txheej txheem txij nkawm raws sij hawm raws li huab cua sib cais chav tu lub voj voog.
Cryogenic huab cua sib cais tsis yog cov cuab yeej tshiab, tab sis nws qhov tob hauv engineering hauv cov pa oxygen rau kev lag luam steel tseem nyob deb ntawm kev tshawb nrhiav tag nrho. Lub qhov dej zoo-tsim qauv cryogenic huab cua sib cais yuav tsum tsis txhob muab thiab tswj raws li "dub box piece of equipment" tab sis yuav tsum tau kho raws li ib tug txheej txheem unit tseem ceeb sib npaug zos rau blast furnaces thiab converters.
Shenger Gas ib txwm ntseeg tias tus nqi ntawm cov khoom siv dag zog tsis yog hauv kev txhawb nqa tab sis hauv kev pab cov engineers kom tsis txhob muaj kev cuam tshuam. Lub ntsiab lus ntawm kev sib cais ntawm huab cua cryogenic thiab steel ntau lawm tsis yog tus lej ntawm cov ntaub ntawv siv khoom, tab sis cov pa oxygen ruaj khov thaum lub sijhawm ua haujlwm txhua lub sijhawm, cov pa roj ntxiv raws sijhawm thaum txhua lub ncov, thiab kev ua haujlwm txhim khu kev qha thoob plaws txhua lub voj voog.
Rau cov tuam txhab hlau npaj lossis txhim kho lawv cov pa oxygen, ntau dua li kev xav ntau dua - cov khoom lag luam ib leeg, nws yog qhov tsim nyog rau kev nqis peev ntau rau kev sib koom ua ke thiab kev tsim peev txheej thaub qab- feem ntau qhov no yog qhov tseem ceeb ntawm kev txiav txim siab ntev - cov nqi khiav lag luam.
