Nyob rau hauv cov txheej txheem alkaline electrolyzer hydrogen ntau lawm, yuav ua li cas ua kom lub cuab yeej ua haujlwm ruaj khov, ntxiv rau qhov zoo ntawm electrolyzer nws tus kheej, nyob rau hauv uas cov lye ncig tus nqi ntawm qhov chaw kuj yog ib qho tseem ceeb cuam tshuam.
Tsis ntev los no, ntawm Tuam Tshoj Industrial Gases Association Hydrogen Professional Committee's Safety Production Technology Exchange Meeting, Huang Li, tus thawj coj ntawm Hydrogen Dej Electrolysis Hydrogen Operation and Maintenance Program, tau qhia peb cov kev paub txog hydrogen thiab lye ncig ntim ntim hauv qhov kev sim thiab kev ua haujlwm thiab kev saib xyuas.
Hauv qab no yog daim ntawv qub.
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Raws li keeb kwm yav dhau los ntawm lub teb chaws dual-carbon lub tswv yim, Ally Hydrogen Energy Technology Co., Ltd, uas tau tshwj xeeb hauv hydrogen ntau lawm rau 25 xyoo thiab yog thawj zaug tau koom nrog hauv kev siv hluav taws xob hydrogen, tau pib nthuav dav kev loj hlob ntawm ntsuab hydrogen technology thiab cov cuab yeej siv, suav nrog kev tsim cov electrolysis tank runners, khoom tsim, electrode plating, nrog rau electrolysis tank kuaj thiab txij nkawm.
IbAlkaline Electrolyzer Txoj Cai Ua Haujlwm
Los ntawm kev hla ib qho hluav taws xob ncaj qha los ntawm electrolyzer uas muaj cov electrolyte, cov dej molecules yog electrochemically reacted ntawm cov electrodes thiab decomposed rau hauv hydrogen thiab oxygen. Txhawm rau txhim kho cov khoom siv hluav taws xob, cov electrolyte dav dav yog cov tshuaj aqueous nrog cov concentration ntawm 30% potassium hydroxide lossis 25% sodium hydroxide.
Lub electrolyzer muaj ntau lub hlwb electrolytic. Txhua electrolysis chamber muaj cathode, anode, diaphragm thiab electrolyte. Lub luag haujlwm tseem ceeb ntawm lub diaphragm yog los tiv thaiv cov roj permeation. Nyob rau hauv qis ntawm lub electrolyzer muaj ib qho kev nkag thiab qhov hluav taws xob, sab sauv ntawm cov roj-kua sib tov ntawm alkali thiab oxy-alkali flow channel. Dhau mus rau hauv ib qho hluav taws xob tam sim no, thaum qhov hluav taws xob ntau tshaj qhov theoretical decomposition voltage ntawm dej 1.23v thiab thermal nruab nrab voltage 1.48V saum toj no ib tug nqi, cov electrode thiab cov kua interface redox cov tshuaj tiv thaiv tshwm sim, dej decomposed rau hauv hydrogen thiab oxygen.
Ob Yuav ua li cas cov lye yog circulated
1️⃣ Hydrogen, Oxygen Side Lye Mixed Cycle
Nyob rau hauv daim ntawv no, cov lye nkag mus rau hauv lub lye ncig twj tso kua mis los ntawm cov yeeb nkab txuas nyob rau hauv qab ntawm hydrogen separator thiab oxygen separator, thiab ces nkag mus rau hauv cathode thiab anode chamber ntawm lub electrolyzer tom qab txias thiab lim. Qhov zoo ntawm kev sib xyaw ua ke yog cov qauv yooj yim, cov txheej txheem luv luv, tus nqi qis, thiab tuaj yeem ua kom zoo tib yam ntawm lye ncig mus rau hauv cathode thiab anode chambers ntawm electrolyzer; qhov tsis zoo yog tias ntawm ib sab, nws tuaj yeem cuam tshuam qhov purity ntawm hydrogen thiab oxygen, thiab ntawm qhov tod tes, nws yuav ua rau theem ntawm hydrogen-oxygen separator tsis hloov, uas yuav ua rau muaj kev pheej hmoo siab ntawm hydrogen-oxygen mixing. Tam sim no, hydrogen-oxygen sab ntawm lye mixing voj voog yog cov txheej txheem ntau tshaj plaws.
2️⃣ Sib cais kev ncig ntawm hydrogen thiab oxygen sab lye
Daim ntawv no ntawm kev ncig yuav tsum muaj ob lub twj tso kua mis lye, piv txwv li ob lub voj voog sab hauv. Lub lye nyob rau hauv qab ntawm lub hydrogen separator kis tau los ntawm hydrogen-sab ncig lub twj tso kua mis, yog txias thiab lim, thiab ces nkag mus rau hauv lub cathode chamber ntawm lub electrolyzer; cov lye nyob rau hauv qab ntawm cov pa separator kis tau los ntawm oxygen-sab ncig lub twj tso kua mis, txias thiab lim, thiab ces nkag mus rau hauv lub anode chamber ntawm lub electrolyzer. Qhov kom zoo dua ntawm kev ywj pheej ntawm lye yog tias cov hydrogen thiab oxygen uas tsim los ntawm electrolysis yog siab purity, lub cev tsis txhob muaj kev pheej hmoo ntawm kev sib xyaw hydrogen thiab oxygen separator; qhov tsis zoo yog tias cov qauv thiab cov txheej txheem yog qhov nyuaj thiab raug nqi, thiab nws tseem yuav tsum tau ua kom ntseeg tau tias qhov sib xws ntawm tus nqi ntws, lub taub hau, lub zog thiab lwm yam tsis zoo ntawm cov twj tso kua mis ntawm ob sab, uas ua rau kom qhov kev ua haujlwm tsis yooj yim, thiab muab tso rau pem hauv ntej qhov yuav tsum tau tswj kev ruaj ntseg ntawm ob sab ntawm lub system.
Peb Kev cuam tshuam ntawm kev khiav dej num ntawm lye ntawm hydrogen ntau lawm los ntawm cov dej electrolytic thiab ua haujlwm ntawm electrolyzer
1️⃣ Cov kab mob lye ntau dhau
(1) Cov nyhuv ntawm hydrogen thiab oxygen purity
Vim tias hydrogen thiab oxygen muaj qee yam solubility hauv cov lye, lub ntim ntim loj heev kom tag nrho cov dej yaj hydrogen thiab oxygen nce thiab nkag mus rau hauv txhua chav nrog cov lye, uas ua rau cov purity ntawm hydrogen thiab oxygen txo nyob rau hauv lub qhov hluav taws xob ntawm lub electrolyzer; Lub voj voog ntim loj heev yog li lub sijhawm khaws cia ntawm hydrogen thiab oxygen kua cais yog luv dhau, thiab cov roj uas tsis tau raug cais tawm tag nrho raug coj rov qab mus rau sab hauv ntawm lub tshuab electrolyzer nrog cov lye, uas cuam tshuam rau kev ua haujlwm ntawm electrolyzer cov tshuaj tiv thaiv electrochemical thiab purity ntawm hydrogen thiab oxygen, thiab ntxiv rau qhov no yuav cuam tshuam rau kev ua haujlwm ntawm electrochemical cov tshuaj tiv thaiv hauv hydrogen thiab hydrogen muaj peev xwm ntxiv. Cov khoom siv purification rau dehydrogenate thiab deoxygenate, ua rau tsis zoo ntawm hydrogen thiab oxygen purification thiab cuam tshuam rau cov khoom zoo.
(2) Qhov cuam tshuam rau lub tank kub
Nyob rau hauv cov xwm txheej uas qhov hluav taws xob kub ntawm lub lye txias tseem tsis hloov, ntau lye ntws yuav tshem tawm cov cua sov ntau los ntawm electrolyzer, ua rau lub tank kub poob thiab lub zog nce.
(3) Kev cuam tshuam rau tam sim no thiab voltage
Tshaj dhau ntawm lye yuav cuam tshuam rau kev ruaj ntseg ntawm tam sim no thiab voltage. Cov kua dej ntau dhau yuav cuam tshuam qhov kev hloov pauv ntawm qhov tam sim no thiab qhov hluav taws xob, ua rau tam sim no thiab qhov hluav taws xob tsis yooj yim stabilized, ua rau muaj kev hloov pauv hauv kev ua haujlwm ntawm lub rectifier txee thiab transformer, thiab yog li cuam tshuam rau kev tsim khoom thiab zoo ntawm hydrogen.
(4) Kev siv hluav taws xob ntau ntxiv
Ntau dhau lye ncig tuaj yeem ua rau muaj zog siv zog, nce nqi khiav lag luam thiab txo lub zog ua haujlwm. Feem ntau nyob rau hauv qhov nce ntawm cov dej txias txias hauv lub cev thiab sab nraud ncig cov tshuaj tsuag thiab kiv cua, chilled dej load, thiab lwm yam., kom lub zog noj, tag nrho lub zog noj nce.
(5) Ua rau cov khoom siv tsis ua haujlwm
Ntau dhau lye ncig ua rau lub nra ntawm lub lye ncig lub twj tso kua mis, uas sib haum rau qhov nce siab, siab thiab kub hloov pauv hauv electrolyzer, uas cuam tshuam rau electrodes, diaphragms thiab gaskets hauv electrolyzer, uas tuaj yeem ua rau cov khoom siv tsis ua haujlwm lossis kev puas tsuaj, thiab nce kev ua haujlwm rau kev kho thiab kho.
2️⃣ Lye ncig me me
(1) Ua rau lub tank kub
Thaum lub circulating ntim ntawm lye tsis txaus, lub tshav kub nyob rau hauv lub electrolyzer tsis tau muab tshem tawm nyob rau hauv lub sij hawm, uas ua rau kom qhov kub thiab txias. Qhov kub thiab txias ib puag ncig ua rau saturated vapor siab ntawm cov dej nyob rau hauv cov roj theem nce thiab cov ntsiab lus dej nce. Yog hais tias cov dej tsis tuaj yeem condensed txaus, nws yuav ua rau kom lub nra ntawm lub purification system thiab cuam tshuam cov nyhuv purification, thiab nws tseem yuav cuam tshuam cov nyhuv thiab lub neej ncua ntawm catalyst thiab adsorbent.
(2) Kev cuam tshuam rau lub neej diaphragm
Kev kub ceev ib puag ncig yuav ua rau kev laus ntawm cov diaphragm, ua rau nws qhov kev ua haujlwm poob qis lossis txawm tias tawg, yooj yim ua rau lub diaphragm ntawm ob sab ntawm hydrogen thiab oxygen kev sib nrig sib permeability, cuam tshuam rau purity ntawm hydrogen thiab oxygen. Thaum kev sib nrig sib infiltration ze rau qhov qis qis ntawm qhov tawg kom qhov tshwm sim ntawm electrolyzer txaus ntshai heev. Nyob rau tib lub sijhawm, qhov ntsuas kub tsis tu ncua tseem yuav ua rau muaj kev puas tsuaj rau lub sealing gasket, shortening nws lub neej kev pab cuam.
(3) Cov nyhuv ntawm electrodes
Yog hais tias lub circulating npaum li cas ntawm lye tsawg dhau, cov roj uas tsim tawm tsis tuaj yeem tawm hauv qhov chaw nquag ntawm cov electrode sai, thiab cov electrolysis efficiency cuam tshuam; Yog hais tias lub electrode tsis tuaj yeem sib cuag nrog cov lye kom ua tiav cov tshuaj tiv thaiv electrochemical, ib feem ntawm qhov paug tawm thiab kev kub hnyiab yuav tshwm sim, ua kom lub zog ntawm cov catalyst ntawm electrode.
(4) Kev cuam tshuam ntawm cell voltage
Tus nqi ntawm cov lye circulating yog tsawg heev, vim hais tias cov hydrogen thiab oxygen npuas tsim nyob rau hauv lub active centre ntawm lub electrode yuav tsis tau muab tshem tawm nyob rau hauv lub sij hawm, thiab tus nqi ntawm yaj nyob rau hauv lub electrolyte nce, ua rau ib tug nce nyob rau hauv voltage ntawm lub me chamber thiab nce nyob rau hauv lub zog noj.
Plaub Txoj Kev los txiav txim siab qhov zoo tshaj plaws lye circulation flow rate
Yuav kom daws tau cov teeb meem saum toj no, nws yog ib qho tsim nyog yuav tsum tau ua cov kev ntsuas sib xws, xws li tshuaj xyuas cov kab mob lye kom tsis tu ncua kom ntseeg tau tias nws ua haujlwm li qub; tswj kom zoo cua sov dissipation tej yam kev mob nyob ib ncig ntawm lub electrolyzer; thiab kho cov kev khiav hauj lwm tsis ua hauj lwm ntawm lub electrolyzer, yog tias tsim nyog, nyob rau hauv thiaj li yuav zam tsis tau qhov tshwm sim ntawm loj heev los yog me me lub ntim ntawm lye ncig.
Qhov zoo tshaj plaws lye circulation flow rate yuav tsum tau txiav txim siab raws li qhov tshwj xeeb electrolyzer kev tsis, xws li electrolyzer loj, tus naj npawb ntawm cov chav, kev khiav hauj lwm siab, cov tshuaj tiv thaiv kub, cua sov tiam, lye concentration, lye txias, hydrogen-oxygen separator, tam sim no ceev, roj purity thiab lwm yam yuav tsum tau, khoom siv thiab kav kav ntev thiab lwm yam.
Technical Parameter Dimensions:
Loj: 4800x2240x2281mm
Tag nrho qhov hnyav 40700Kg
Siv tau chamber size1830, Number of chamber 238个
Electrolyzer tam sim no ceev 5000A / m²
Kev khiav hauj lwm siab 1.6 Mpa
Cov tshuaj tiv thaiv kub 90 ℃ ± 5 ℃
Ib txheej ntawm electrolyzer khoom hydrogen ntim 1300Nm³ / h
Cov pa oxygen 650Nm³ / h
direct tam sim no n13100A, dc voltage 480V
Lye Cooler Φ700x4244mm
Qhov chaw sov so 88.2m²
Hydrogen thiab oxygen separator Φ1300x3916mm
Oxygen Separator Φ1300x3916mm
Potassium hydroxide tov concentration 30%
Cov dej ntshiab tsis muaj nqi> 5MΩ·cm
Kev sib raug zoo ntawm cov tshuaj potassium hydroxide thiab electrolyzer:
Ua kom cov dej ntshiab huv, nqa tawm hydrogen thiab oxygen, thiab tshem tawm cov cua sov. Cov dej txias ntws yog siv los tswj cov lye kub kom qhov kub ntawm cov tshuaj tiv thaiv electrolyzer yog qhov ruaj khov, thiab cov hluav taws kub ntawm cov electrolyzer thiab cov dej txias ntws yog siv los ua kom muaj qhov sib npaug ntawm cov cua sov kom ua tiav qhov kev ua haujlwm zoo tshaj plaws thiab lub zog txuag kev ua haujlwm.
Raws li kev ua haujlwm tiag tiag:
Lye ncig ntim tswj ntawm 60m³ / h,
Cov dej txias ntws qhib ntawm li 95%,
Cov tshuaj tiv thaiv kub ntawm electrolyzer yog tswj ntawm 90 ° C ntawm tag nrho cov load,
Qhov zoo tshaj plaws electrolyzer DC fais fab mov yog 4.56 kWh / Nm³H₂.
Tsibxaus lus
Ua kom tiav, qhov ntim ntawm cov lye yog qhov tseem ceeb hauv cov txheej txheem ntawm hydrogen ntau lawm los ntawm dej electrolysis, uas muaj feem xyuam rau cov roj purity, chamber voltage, electrolyzer kub thiab lwm yam tsis. Nws yog qhov tsim nyog los tswj lub ntim ntim ntawm 2 ~ 4 zaug / h / min ntawm lye hloov hauv lub tank. Los ntawm kev tswj xyuas qhov ntim ntawm lye, nws ua kom ruaj khov thiab nyab xeeb ntawm cov khoom siv dej electrolysis hydrogen ntau lawm rau lub sijhawm ntev.
Nyob rau hauv cov txheej txheem hydrogen ntau lawm los ntawm dej electrolysis nyob rau hauv alkaline electrolyzer, optimization ntawm kev ua hauj lwm yam tsis ua hauj lwm thiab electrolyzer khiav tsim, ua ke nrog cov khoom siv electrode thiab diaphragm xaiv cov khoom yog tus yuam sij kom nce tam sim no, txo lub tank voltage thiab txuag lub zog noj.
—— Tiv tauj peb —
Tel: +86 028 6259 0080
Fax: +86 028 6259 0100
E-mail: tech@allygas.com
Post lub sij hawm: Jan-09-2025
