Lub tshuab tsim hluav taws xob electrolysis hydrogen suav nrog cov khoom ua tiav ntawm cov dej electrolysis hydrogen ntau lawm. Cov khoom siv tseem ceeb yog:
1. Electrolyzer
2. Gas-kua sib cais ntaus ntawv
3. Qhuav thiab purification system
4. Cov khoom siv hluav taws xob muaj xws li: transformer, rectifier txee, PLC qhov kev pab cuam tswj txee, ntsuas txee, fais fab faib txee, party computer, thiab lwm yam.
5. Lub koom haum pabcuam feem ntau suav nrog: lub tank alkali, cov khoom siv dej hauv lub tank, cov twj tso kua dej, lub raj mis nitrogen / tsheb npav, thiab lwm yam.
6. Kev pabcuam tag nrho ntawm cov khoom siv suav nrog: tshuab dej ntshiab, dej txias ntauwd, chiller, cua compressor, thiab lwm yam.
Hauv chav tsev tsim hluav taws xob electrolytic hydrogen, dej yog decomposed rau hauv ib feem ntawm hydrogen thiab 1/2 ib feem ntawm oxygen nyob rau hauv lub electrolyzer nyob rau hauv qhov kev txiav txim ntawm ncaj qha tam sim no. Lub generated hydrogen thiab oxygen xa mus rau cov roj-kua cais ua ke nrog cov electrolyte rau kev sib cais. Lub hydrogen thiab cov pa oxygen yog txias los ntawm hydrogen thiab oxygen coolers, thiab lub nco catcher catches thiab tshem tawm dej, thiab ces raug xa tawm raws li kev tswj ntawm kev tswj; cov electrolyte dhau los ntawm hydrogen, oxygen alkali lim, hydrogen, oxygen alkali lim, thiab lwm yam nyob rau hauv qhov kev txiav txim ntawm lub twj tso kua mis. kua txias thiab rov qab mus rau lub electrolyzer mus txuas ntxiv electrolysis.
Lub siab ntawm lub kaw lus tau hloov kho los ntawm kev tswj lub siab thiab qhov sib txawv ntawm qhov kev tswj xyuas kom tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem tom ntej thiab kev cia khoom.
Hydrogen uas ua los ntawm dej electrolysis muaj qhov zoo ntawm purity siab thiab ob peb impurities. Feem ntau, cov impurities hauv hydrogen tsim los ntawm dej electrolysis tsuas yog oxygen thiab dej, thiab tsis muaj lwm yam khoom (uas tuaj yeem zam kev lom ntawm qee cov catalysts), uas muab kev yooj yim rau kev tsim cov khoom siv high-purity hydrogen. , tom qab purification, cov roj uas tsim tawm tuaj yeem ncav cuag cov ntsuas hluav taws xob qib kev lag luam roj.
Cov khoom siv hydrogen uas tsim los ntawm cov khoom siv hydrogen tau dhau los ntawm lub tank tsis tuaj yeem ua kom lub zog ua haujlwm ntawm lub cev thiab tshem tawm cov dej dawb hauv hydrogen ntxiv.
Tom qab cov hydrogen nkag mus rau hauv hydrogen purification ntaus ntawv, cov hydrogen uas ua los ntawm dej electrolysis yog ntxiv purified, thiab oxygen, dej thiab lwm yam impurities nyob rau hauv hydrogen raug tshem tawm siv cov ntsiab cai ntawm catalytic cov tshuaj tiv thaiv thiab molecular sieve adsorption.
Cov khoom siv tuaj yeem teeb tsa qhov kev hloov kho tsis siv neeg rau hydrogen ntau lawm 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 thiab xa mus rau PLC thiab Tom qab sib piv cov nqi qub thiab ua qhov hloov pauv hloov pauv thiab PID suav, 20 ~ 4mA teeb liab tawm thiab xa mus rau lub txee rectifier rau kho qhov loj ntawm 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.
Alkaline dej electrolysis hydrogen ntau lawm cov khoom siv feem ntau suav nrog cov hauv qab no:
(1) Raw khoom dej system
Tib yam uas tshwm sim hauv cov txheej txheem dej electrolysis hydrogen yog dej (H2O), uas yuav tsum tau ua kom tsis tu ncua nrog dej nyoos los ntawm lub twj tso kua mis dej ntxiv. Txoj haujlwm ntxiv dej yog nyob ntawm hydrogen lossis oxygen separator. Tsis tas li ntawd, ib qho me me ntawm hydrogen thiab oxygen yuav tsum tau muab tshem tawm thaum tawm hauv lub cev. ntawm noo noo. Kev siv dej ntawm cov khoom siv me me yog 1L / Nm³H2, thiab cov khoom siv loj tuaj yeem txo mus rau 0.9L / Nm³H2. Lub kaw lus txuas ntxiv ntxiv cov dej nyoos. Los ntawm kev ntxiv dej, kev ruaj ntseg ntawm alkali kua theem thiab alkali concentration tuaj yeem khaws cia, thiab cov tshuaj tiv thaiv tuaj yeem rov ua dua rau lub sijhawm. dej los tswj cov concentration ntawm lye.
2) 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 mus rau hauv DC lub zog uas yuav tsum tau ua los ntawm electrolyzer, thiab muab DC lub zog rau electrolyzer. Ib feem ntawm cov khoom siv fais fab yog siv los ncaj qha decompose dej. Cov molecules yog hydrogen thiab oxygen, thiab lwm qhov ua kom muaj cua sov, uas yog coj tawm los ntawm lye txias los ntawm dej txias.
Feem ntau ntawm cov transformers yog roj hom. Yog tias muab tso rau hauv tsev lossis hauv lub thawv, cov tshuab ziab khaub ncaws tuaj yeem siv tau. Cov transformers siv nyob rau hauv electrolytic dej hydrogen ntau lawm cov cuab yeej yog tshwj xeeb transformers thiab yuav tsum tau sib phim raws li cov ntaub ntawv ntawm txhua electrolyzer, yog li ntawd lawv yog customized khoom.
(3) Fais fab faib txee system
Lub tshuab hluav taws xob faib hluav taws xob feem ntau yog siv los muab 400V lossis feem ntau hu ua 380V cov cuab yeej siv rau ntau yam khoom siv nrog lub cev muaj zog hauv hydrogen thiab oxygen sib cais thiab purification systems tom qab cov khoom siv dej electrolytic hydrogen. Cov khoom siv suav nrog cov alkali ncig hauv hydrogen thiab oxygen cais lub moj khaum. Cov twj tso kua mis, cov twj tso dej ntxiv hauv cov twj tso kua mis; cua sov xov hlau nyob rau hauv qhuav thiab purification systems, thiab auxiliary systems yuav tsum tau los ntawm tag nrho cov system, xws li cov dej ntshiab cov cav tov, chillers, cua compressors, cua txias yees, thiab back-end hydrogen compressors, hydrogenation tshuab thiab lwm yam khoom siv fais fab mov kuj muaj xws li fais fab mov rau teeb pom kev zoo, saib xyuas thiab lwm yam tshuab ntawm tag nrho cov chaw nres tsheb.
(4) tswj qhov system
Lub kaw lus tswj siv PLC tsis siv neeg tswj. Lub PLC feem ntau siv Siemens 1200 lossis 1500. Nws yog nruab nrog tib neeg-khoos phis tawj kev sib cuam tshuam interface kov lub vijtsam, thiab kev ua haujlwm thiab qhov ntsuas pom ntawm txhua qhov system ntawm cov khoom siv thiab cov khoom siv tswj kev ntsuas tau paub txog ntawm lub vijtsam kov.
5) Alkali ncig system
Qhov system no feem ntau suav nrog cov cuab yeej tseem ceeb hauv qab no:
Hydrogen thiab oxygen separator - alkali ncig twj tso kua mis - valve - alkali lim - electrolyzer
Cov txheej txheem tseem ceeb yog: cov kua alkali tov nrog hydrogen thiab oxygen nyob rau hauv hydrogen thiab oxygen separator yog sib cais los ntawm cov roj-kua separator thiab ces ntws rov qab mus rau lub alkali kua ncig twj tso kua mis. Ntawm no cov hydrogen separator thiab cov pa oxygen separator txuas nrog, thiab cov kua alkali cov twj tso kua mis yuav reflux. Cov kua alkali circulates mus rau lub valve thiab alkali kua lim tom qab kawg. Tom qab lub lim lim tawm cov impurities loj, cov kua alkali ncig mus rau sab hauv ntawm cov electrolyzer.
(6) Hydrogen system
Hydrogen yog tsim los ntawm cathode electrode sab thiab mus txog qhov sib cais nrog rau cov kua dej alkali. Nyob rau hauv lub separator, vim hais tias cov hydrogen nws tus kheej yog lub teeb, nws yuav ib txwm cais los ntawm cov kua alkali thiab mus txog rau sab sauv ntawm lub separator, thiab ces dhau los ntawm lub raj xa mus rau kev sib cais thiab txias. Tom qab cov dej txias, tus poob catcher ntes cov tee dej thiab ncav cuag ib tug purity ntawm 99%, uas mus txog lub back-kawg ziab thiab purification system.
Kev khiav tawm: Kev khiav tawm ntawm hydrogen feem ntau yog siv rau kev khiav tawm thaum lub sijhawm pib thiab kaw, kev ua haujlwm txawv txav lossis tsis ua haujlwm purity, thiab kev khiav tawm tsis raug.
(7) Oxygen system
Txoj kev rau cov pa oxygen zoo ib yam li rau hydrogen, tab sis nyob rau hauv ib qho sib txawv.
Kev khiav tawm: Tam sim no, feem ntau ntawm cov haujlwm oxygen raug kho los ntawm kev khiav tawm.
Kev Siv: Kev siv cov pa oxygen tsuas yog muaj txiaj ntsig hauv cov haujlwm tshwj xeeb, xws li qee qhov kev thov uas tuaj yeem siv ob qho tib si hydrogen thiab high-purity oxygen, xws li optical fiber 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 kev tsim cov pa oxygen tom qab ziab thiab ua kom huv, lossis siv cov pa kho mob los ntawm kev sib cais. Txawm li cas los xij, kev kho kom zoo ntawm cov kev siv cov xwm txheej no tseem tsis tau txiav txim siab. Kev lees paub ntxiv.
(8) dej txias system
Cov txheej txheem electrolysis ntawm dej yog cov tshuaj tiv thaiv endothermic. Cov txheej txheem tsim tawm hydrogen yuav tsum tau muab nrog lub zog hluav taws xob. Txawm li cas los xij, lub zog hluav taws xob siv los ntawm cov txheej txheem dej electrolysis tshaj qhov theoretical tshav kub nqus ntawm cov dej electrolysis cov tshuaj tiv thaiv. Qhov ntawd yog hais tias, ib feem ntawm cov hluav taws xob siv los ntawm electrolyzer hloov mus rau hauv tshav kub. Qhov no Cov cua sov feem ntau yog siv los ua kom sov lub alkali ncig system thaum pib, kom qhov kub ntawm cov tshuaj alkali nce mus rau 90 ± 5 ° C kub ntau yam yuav tsum tau los ntawm cov khoom siv. Yog hais tias lub electrolyzer tseem ua hauj lwm tom qab ncav cuag qhov ntsuas kub, cov cua kub uas tsim los yuav tsum tau siv cov dej txias yog coj tawm los tswj qhov kub thiab txias ntawm thaj tsam electrolysis. Qhov kub siab nyob rau hauv cov tshuaj tiv thaiv electrolysis tuaj yeem txo qhov kev siv hluav taws xob, tab sis yog tias qhov kub thiab txias siab dhau lawm, lub membrane ntawm electrolysis chamber yuav raug rhuav tshem, uas yuav ua rau muaj kev puas tsuaj rau cov khoom siv mus sij hawm ntev.
Cov cuab yeej no yuav tsum tau ua haujlwm kub kom tsis txhob ntau tshaj 95 ° C. Tsis tas li ntawd, lub generated hydrogen thiab oxygen yuav tsum tau txias thiab dehumidified, thiab cov dej-txias silicon tswj rectifier ntaus ntawv kuj tseem 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.
(9) Nitrogen filling thiab nitrogen purging system
Ua ntej debugging thiab khiav lub cuab yeej, lub kaw lus yuav tsum tau ntim nrog nitrogen rau kev ntsuas huab cua nruj. Ua ntej pib ib txwm pib, cov roj theem ntawm lub kaw lus tseem yuav tsum tau purged 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 pom thaum lub cuab yeej qhib, tsis tas yuav tsum ua purging. Txawm li cas los xij, yog tias tag nrho cov siab raug tshem tawm, nws yuav tsum tau purged dua. Nitrogen ntxuav kev ua haujlwm.
(10) Hydrogen drying (purification) system (yeem)
Cov hydrogen uas ua los ntawm cov dej electrolysis yog dehumidified los ntawm ib tug parallel tshuab ziab khaub ncaws, thiab thaum kawg plua plav los ntawm sintered nickel raj lim kom tau qhuav hydrogen. (Raws li tus neeg siv khoom xav tau rau cov khoom siv hydrogen, lub kaw lus yuav ntxiv cov khoom siv purification, thiab kev ua kom huv si siv palladium-platinum bimetallic catalytic deoxidation).
Cov hydrogen uas ua los ntawm cov dej electrolysis hydrogen ntau lawm yog xa mus rau hydrogen purification ntaus ntawv los ntawm lub tank tsis.
Lub hydrogen thawj zaug dhau los ntawm deoxygenation ntauwd. Nyob rau hauv qhov kev txiav txim ntawm catalyst, cov pa oxygen hauv hydrogen reacts nrog hydrogen los tsim dej.
Cov qauv tshuaj tiv thaiv: 2H2 + O2 2H2O.
Tom qab ntawd, cov hydrogen hla dhau los ntawm hydrogen condenser (uas ua kom cov pa txias kom txias cov dej vapor hauv cov pa los tsim cov dej, thiab cov dej condensed tau txiav tawm tawm ntawm qhov system los ntawm cov khoom siv kua) thiab nkag mus rau ntauwd adsorption.
Post lub sij hawm: May-14-2024
