Cov electrolytichydrogenchav tsev tsim khoom suav nrog cov txheej txheem dej electrolysis tiavhydrogencov khoom siv ntau lawm, nrog cov cuab yeej tseem ceeb suav nrog:
1. Electrolytic cell
2. Gas kua cais ntaus ntawv
3. Qhuav thiab purification system
4. Cov khoom siv hluav taws xob muaj xws li: transformer, rectifier txee, PLC tswj txee, ntsuas txee, faib txee, lub computer sab sauv, thiab lwm yam
5. Lub koom haum pab cuam feem ntau suav nrog: alkali tov tank, cov khoom siv dej tank, cov twj tso kua mis, nitrogen lub tog raj kheej / busbar, thiab lwm yam / 6. Cov khoom siv tag nrho muaj xws li: tshuab dej ntshiab, chiller ntauwd, chiller, cua compressor, thiab lwm yam
hydrogen thiab oxygen coolers, thiab cov dej yog sau los ntawm ib tug drip ntxiab ua ntej yuav raug xa tawm raws li kev tswj ntawm qhov system tswj; Cov electrolyte hla dhauhydrogenthiab oxygen alkali lim, hydrogen thiab oxygen alkali coolers raws li nyob rau hauv qhov kev txiav txim ntawm lub twj tso kua mis, thiab ces rov qab mus rau lub electrolytic cell rau ntxiv electrolysis.
Lub siab ntawm lub kaw lus yog tswj hwm los ntawm lub siab tswj qhov system thiab qhov sib txawv siab tswj qhov system kom ua tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem qis qis thiab cia.
Cov hydrogen ua los ntawm dej electrolysis muaj qhov zoo ntawm cov purity siab thiab tsis muaj impurities. Feem ntau, cov impurities hauv hydrogen gas uas tsim los ntawm dej electrolysis tsuas yog oxygen thiab dej, tsis muaj lwm yam khoom (uas tuaj yeem zam kev lom ntawm qee cov catalysts). Qhov no muab kev yooj yim rau kev tsim cov pa roj purity hydrogen, thiab cov pa roj purified tuaj yeem ua tau raws li cov qauv ntawm cov khoom siv hluav taws xob.
Cov hydrogen uas ua los ntawm cov khoom siv hydrogen dhau los ntawm lub tank tsis tuaj yeem ua kom lub zog ua haujlwm siab thiab tshem tawm cov dej dawb los ntawm hydrogen.
Tom qab nkag mus rau hauv lub tshuab ua kom huv hydrogen, cov hydrogen uas ua los ntawm cov dej electrolysis yog ntxiv purified, siv cov qauv ntawm cov tshuaj tiv thaiv catalytic thiab molecular sieve adsorption kom tshem tawm oxygen, dej, thiab lwm yam impurities los ntawm hydrogen.
Cov khoom siv tuaj yeem teeb tsa qhov kev hloov kho hydrogen tsis siv neeg raws li qhov xwm txheej tiag tiag. Kev hloov pauv hauv cov pa roj yuav ua rau muaj kev hloov pauv hauv lub siab ntawm lub tank hydrogen cia. Lub siab transmitter ntsia rau ntawm lub tank cia yuav tso tawm 4-20mA teeb liab rau PLC rau kev sib piv nrog tus nqi qub, thiab tom qab kev hloov pauv hloov pauv thiab PID suav, tso tawm 20-4mA teeb liab mus rau lub txee rectifier los kho qhov loj ntawm cov khoom. electrolysis tam sim no, yog li ua tiav lub hom phiaj ntawm kev hloov kho tsis siv neeg ntawm hydrogen ntau lawm raws li kev hloov pauv hauv hydrogen load.
Tsuas yog cov tshuaj tiv thaiv nyob rau hauv cov txheej txheem ntawm hydrogen ntau lawm los ntawm dej electrolysis yog dej (H2O), uas yuav tsum tau mus tas li muab cov dej nyoos los ntawm lub twj tso kua mis dej ntxiv. Txoj haujlwm ntxiv yog nyob ntawm hydrogen lossis oxygen separator. Tsis tas li ntawd, hydrogen thiab oxygen yuav tsum tshem tawm cov dej me me thaum tawm hauv lub cev. Cov cuab yeej siv dej tsawg tuaj yeem haus 1L / Nm ³ H2, thaum cov khoom siv loj tuaj yeem txo nws mus rau 0.9L / Nm ³ H2. Lub kaw lus tsis tu ncua ntxiv cov dej nyoos, uas tuaj yeem tswj tau qhov ruaj khov ntawm cov kua dej alkaline thiab concentration. Nws tseem tuaj yeem ntxiv cov dej reacted nyob rau lub sijhawm kom tswj tau qhov concentration ntawm cov tshuaj alkaline.
- Transformer rectifier system
Qhov system no tsuas yog muaj ob yam khoom siv, lub tshuab hloov pauv thiab lub txee rectifier. Nws lub luag haujlwm tseem ceeb yog hloov 10/35KV AC lub zog muab los ntawm tus tswv pem hauv ntej-kawg rau hauv DC lub zog uas yuav tsum tau ua los ntawm electrolytic cell, thiab muab DC lub zog rau lub cell electrolytic. Ib feem ntawm cov khoom siv hluav taws xob yog siv los ncaj qha decompose dej molecules rau hauv hydrogen thiab oxygen, thiab lwm qhov ua kom sov, uas yog nqa tawm los ntawm alkali txias los ntawm cov dej txias.
Feem ntau ntawm cov transformers yog hom roj. Yog tias muab tso rau hauv tsev lossis hauv lub thawv, cov tshuab ziab khaub ncaws tuaj yeem siv tau. Cov transformers siv rau electrolytic dej hydrogen ntau lawm cov cuab yeej yog tshwj xeeb transformers uas yuav tsum tau sib phim raws li cov ntaub ntawv ntawm txhua electrolytic cell, yog li lawv yog customized khoom.
Tam sim no, feem ntau siv rectifier txee yog hom thyristor, uas tau txais kev txhawb nqa los ntawm cov khoom lag luam vim nws lub sijhawm siv ntev, kev ruaj ntseg siab, thiab tus nqi qis. Txawm li cas los xij, vim qhov xav tau los hloov cov cuab yeej loj mus rau pem hauv ntej-kawg lub zog tauj dua tshiab, kev hloov pauv kev ua haujlwm ntawm thyristor rectifier txee yog qhov tsawg. Tam sim no, ntau lub tuam txhab rectifier txee tau siv zog los txais yuav IGBT rectifier txee tshiab. IGBT twb muaj ntau heev nyob rau hauv lwm yam lag luam xws li cua zog, thiab nws ntseeg hais tias IGBT rectifier txee yuav muaj kev loj hlob tseem ceeb yav tom ntej.
- Distribution txee system
Lub txee xa khoom yog tsuas yog siv los muab lub zog rau ntau yam khoom siv nrog lub cev muaj zog hauv hydrogen oxygen sib cais thiab purification system tom qab cov khoom siv hluav taws xob hydrogen ntau lawm, suav nrog 400V lossis feem ntau hu ua 380V cov cuab yeej. Cov cuab yeej muaj xws li lub twj tso kua mis alkali nyob rau hauv lub moj khaum hydrogen oxygen sib cais thiab lub twj tso kua mis ua rau hauv lub auxiliary system; Cov khoom siv hluav taws xob rau cov cua sov nyob hauv qhov ziab thiab ua kom huv, nrog rau cov khoom siv uas xav tau rau tag nrho cov tshuab xws li cov tshuab dej ntshiab, chillers, cua compressors, cua txias yees, thiab rov qab-kawg hydrogen compressors, hydrogenation tshuab, thiab lwm yam. ., kuj suav nrog cov khoom siv hluav taws xob rau lub teeb pom kev zoo, kev saib xyuas, thiab lwm yam kev ua haujlwm ntawm tag nrho cov chaw nres tsheb.
- Control system
Lub kaw lus tswj siv PLC tsis siv neeg tswj. PLC feem ntau siv Siemens 1200 lossis 1500, thiab tau nruab nrog tib neeg-tshuab sib cuam tshuam interface kov npo. Kev ua haujlwm thiab qhov ntsuas ntsuas ntawm txhua qhov system ntawm cov cuab yeej siv nrog rau cov khoom siv tswj kev ntsuas tau paub txog ntawm lub vijtsam kov.
5. Alkali tshuaj ncig system
Qhov system no feem ntau suav nrog cov cuab yeej tseem ceeb hauv qab no:
Hydrogen Oxygen Separator - Alkali tov twj tso kua mis - Valve - Alkali kua lim - Electrolytic cell
Cov txheej txheem tseem ceeb yog raws li hauv qab no: cov tshuaj alkaline tov nrog hydrogen thiab oxygen nyob rau hauv hydrogen oxygen separator yog sib cais los ntawm cov roj-kua separator thiab refluxed mus rau lub alkaline kua circulation twj tso kua mis. Lub hydrogen separator thiab oxygen separator yog txuas nrog ntawm no, thiab cov alkaline tov twj tso kua mis circulates refluxed alkaline tov rau lub valve thiab alkaline kua lim tom qab kawg. Tom qab lub lim dej lim tawm cov impurities loj, cov tshuaj alkaline yog ncig mus rau sab hauv ntawm lub cell electrolytic.
6.Hydrogen system
Hydrogen gas yog tsim los ntawm cathode electrode sab thiab mus txog qhov sib cais nrog rau cov kua dej alkaline. Nyob rau hauv lub separator, hydrogen gas kuj yog lub teeb thiab ib txwm sib cais los ntawm cov tshuaj alkaline, mus txog rau sab sauv ntawm lub separator. Tom qab ntawd, nws dhau los ntawm cov kav dej rau kev sib cais ntxiv, txias los ntawm cov dej txias, thiab sau los ntawm cov drip catcher kom ua tiav qhov purity ntawm li 99% ua ntej mus txog qhov rov qab ziab thiab purification system.
Kev khiav tawm: Kev khiav tawm ntawm cov pa roj hydrogen feem ntau yog siv thaum lub sijhawm pib thiab kaw, kev ua haujlwm tsis zoo, lossis thaum purity tsis ua raws li cov qauv, nrog rau kev daws teeb meem.
7. Oxygen system
Txoj kev ntawm cov pa oxygen zoo ib yam li cov hydrogen, tshwj tsis yog tias nws tau ua nyob rau hauv cov khoom sib txawv.
Emptying: Tam sim no, feem ntau cov dej num siv txoj kev nqus pa.
Kev Siv: Kev siv cov pa oxygen tsuas yog muaj txiaj ntsig hauv cov haujlwm tshwj xeeb, xws li cov ntawv thov uas tuaj yeem siv ob qho tib si hydrogen thiab high-purity oxygen, xws li fiber optic manufacturers. Kuj tseem muaj qee qhov haujlwm loj uas tau tseg qhov chaw rau kev siv cov pa oxygen. Cov xwm txheej ntawm daim ntawv thov rov qab yog rau kev tsim cov pa oxygen tom qab ziab thiab ua kom huv, lossis rau kev kho mob oxygen los ntawm cov tshuab tawg. Txawm li cas los xij, qhov tseeb ntawm kev siv cov xwm txheej no tseem xav tau kev pom zoo ntxiv.
8. Cov dej txias txias
Cov txheej txheem electrolysis ntawm dej yog cov tshuaj tiv thaiv endothermic, thiab cov txheej txheem tsim cov hydrogen yuav tsum tau muab cov hluav taws xob hluav taws xob. Txawm li cas los xij, lub zog hluav taws xob siv hauv cov txheej txheem dej electrolysis tshaj qhov theoretical tshav kub nqus ntawm cov dej electrolysis cov tshuaj tiv thaiv. Nyob rau hauv lwm yam lus, ib feem ntawm cov hluav taws xob siv nyob rau hauv lub electrolysis cell yog hloov dua siab tshiab rau hauv lub tshav kub, uas yog tsuas yog siv los ua kom sov lub alkaline kua circulation system thaum pib, nce qhov kub ntawm cov alkaline tov rau qhov yuav tsum tau kub ntau yam ntawm 90 ± 5. ℃ rau cov khoom siv. Yog hais tias cov electrolysis cell txuas ntxiv ua haujlwm tom qab ncav cuag qhov ntsuas kub, cov hluav taws xob tsim hluav taws xob yuav tsum tau ua los ntawm cov dej txias kom tswj tau qhov kub thiab txias ntawm thaj tsam electrolysis. Qhov kub siab hauv cheeb tsam electrolysis tuaj yeem txo qhov kev siv hluav taws xob, tab sis yog tias qhov kub thiab txias siab dhau lawm, lub diaphragm ntawm electrolysis chamber yuav raug puas tsuaj, uas yuav ua rau muaj kev puas tsuaj rau cov khoom siv mus sij hawm ntev.
Qhov zoo tshaj plaws kev khiav hauj lwm kub rau cov cuab yeej no yuav tsum tau khaws cia tsis ntau tshaj 95 ℃. Tsis tas li ntawd, lub generated hydrogen thiab oxygen kuj yuav tsum tau txias thiab dehumidified, thiab cov dej-txias thyristor rectifier ntaus ntawv kuj tau nruab nrog cov kav dej txias tsim nyog.
Lub twj tso kua mis lub cev ntawm cov cuab yeej loj kuj xav tau kev koom tes ntawm cov dej txias.
- Nitrogen filling thiab nitrogen purging system
Ua ntej kev debugging thiab ua haujlwm ntawm lub cuab yeej, yuav tsum kuaj xyuas nitrogen nruj ntawm qhov system. Ua ntej pib ib txwm pib, nws tseem yuav tsum tau ntxuav cov roj theem ntawm lub cev nrog nitrogen kom ntseeg tau tias cov pa roj hauv cov pa theem ntawm ob sab ntawm hydrogen thiab oxygen nyob deb ntawm cov nplaim taws thiab tawg ntau.
Tom qab cov cuab yeej kaw lawm, lub kaw lus tswj yuav cia li tswj lub siab thiab khaws qee qhov nyiaj ntawm hydrogen thiab oxygen hauv lub cev. Yog tias lub siab tseem nyob hauv lub sijhawm pib, tsis tas yuav tsum ua qhov kev txiav txim purging. Txawm li cas los xij, yog tias lub siab txo qis tag nrho, qhov kev txiav txim siab nitrogen yuav tsum tau ua dua.
- Hydrogen drying (purification) system (yeem)
Cov roj hydrogen npaj los ntawm dej electrolysis yog dehumidified los ntawm lub tshuab ziab khaub ncaws, thiab thaum kawg ua kom huv los ntawm sintered nickel raj lim kom tau cov roj hydrogen qhuav. Raws li tus neeg siv khoom xav tau rau cov khoom siv hydrogen, lub kaw lus yuav ntxiv cov khoom siv purification, uas siv palladium platinum bimetallic catalytic deoxygenation rau purification.
Cov hydrogen uas ua los ntawm cov dej electrolysis hydrogen ntau lawm yog xa mus rau hydrogen purification chav tsev los ntawm lub tank tsis.
Cov pa roj hydrogen ua ntej dhau los ntawm lub deoxygenation ntauwd, thiab nyob rau hauv qhov kev txiav txim ntawm lub catalyst, cov pa oxygen hauv hydrogen reacts nrog cov roj hydrogen los tsim dej.
Cov qauv tshuaj tiv thaiv: 2H2 + O2 2H2O.
Tom qab ntawd, cov roj hydrogen hla dhau los ntawm hydrogen condenser (uas ua rau cov roj cua txias kom cov dej ntws tawm mus rau hauv dej, uas tau txiav tawm tawm sab nraud los ntawm cov khoom sib sau) thiab nkag mus rau ntauwd adsorption.
Post lub sij hawm: Dec-03-2024
