Kufalikira kwa Hydrogen ndi Alkali mu Alkaline Electrolyzer Water Electrolysis Njira Yopangira Hydrogen

Mu njira yopangira hydrogen ya alkaline electrolyzer, momwe mungapangire chipangizocho kuti chizigwira ntchito bwino, kuwonjezera pa mtundu wa electrolyzer yokha, momwe kuchuluka kwa kayendedwe ka lye komwe kali nakonso ndi chinthu chofunikira kwambiri.

Posachedwapa, pa Msonkhano wa Chitetezo cha Ukadaulo Wopanga Zamagetsi ku China Industrial Gases Association Hydrogen Professional Committee's Safety Production Technology Exchange Meeting, Huang Li, mtsogoleri wa Hydrogen Water Electrolysis Hydrogen Operation and Maintenance Program, adagawana zomwe tidakumana nazo pakusintha kwa kuchuluka kwa hydrogen ndi lye mu kuyesa ndi kugwiritsa ntchito komanso kukonza.

Pepala loyambirira ndi ili.

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Pansi pa ndondomeko ya dziko lonse ya dual-carbon, Ally Hydrogen Energy Technology Co., Ltd, yomwe yakhala ikugwira ntchito yopanga hydrogen kwa zaka 25 ndipo inali yoyamba kutenga nawo mbali mu gawo la mphamvu ya hydrogen, yayamba kukulitsa chitukuko cha ukadaulo wobiriwira wa hydrogen ndi zida, kuphatikizapo kapangidwe ka ma electrolysis tank runners, kupanga zida, electrode plating, komanso kuyesa electrolysis tank ndi ntchito ndi kukonza.

ChimodziMfundo Yogwirira Ntchito ya Alkaline Electrolyzer

Mwa kudutsa mphamvu yolunjika kudzera mu electrolyzer yodzazidwa ndi electrolyte, mamolekyu amadzi amayankhidwa ndi electrochemical pa ma electrode ndipo amasungunuka kukhala haidrojeni ndi okosijeni. Pofuna kuwonjezera mphamvu ya electrolyte, electrolyte yonse ndi yankho lamadzi lomwe lili ndi 30% potaziyamu hydroxide kapena 25% sodium hydroxide.

Electrolyzer imakhala ndi maselo angapo a electrolytic. Chipinda chilichonse cha electrolysis chimakhala ndi cathode, anode, diaphragm ndi electrolyte. Ntchito yayikulu ya diaphragm ndikuletsa kulowa kwa mpweya. Pansi pa electrolyzer pali malo olowera ndi kutuluka wamba, gawo lapamwamba la chisakanizo cha gasi-liquid cha alkali ndi oxy-alkali flow channel. Imadutsa mu voltage inayake ya direct current, pamene voltage imaposa voltage ya theoretical decomposition ya madzi 1.23v ndi thermal neutral voltage 1.48V pamwamba pa mtengo winawake, electrode ndi liquid interface redox reaction zimachitika, madzi amasungunuka kukhala hydrogen ndi oxygen.

Awiri Momwe lye imafalikira

1️⃣Hydrogen, Mpweya Wosakaniza wa Mpweya wa Oxygen Side Lye

Mu mtundu uwu wa kayendedwe ka madzi, lye imalowa mu pampu yozungulira madzi kudzera mu chitoliro cholumikizira pansi pa cholekanitsa hydrogen ndi okosijeni, kenako imalowa mu zipinda za cathode ndi anode za electrolyzer itatha kuziziritsa ndi kusefa. Ubwino wa kayendedwe ka madzi kosakanikirana ndi kapangidwe kosavuta, njira yochepa, mtengo wotsika, ndipo imatha kutsimikizira kukula kofanana kwa kayendedwe ka madzi mu zipinda za cathode ndi anode za electrolyzer; vuto ndilakuti mbali imodzi, ingakhudze kuyera kwa hydrogen ndi okosijeni, ndipo mbali inayo, ingayambitse kuchuluka kwa okosijeni ndi okosijeni kusasinthika, zomwe zingayambitse chiopsezo chowonjezeka cha kusakaniza kwa hydrogen ndi okosijeni. Pakadali pano, mbali ya hydrogen-oxygen ya kayendedwe ka madzi kosakanikirana ndi ayezi ndiyo njira yodziwika kwambiri.

2️⃣Kuzungulira kwa haidrojeni ndi mpweya woipa mosiyana

Mtundu uwu wa kayendedwe ka madzi umafuna mapampu awiri oyendera madzi a lye, mwachitsanzo maulendo awiri amkati. Lye yomwe ili pansi pa cholekanitsa hydrogen imadutsa pampu yoyendera madzi ya hydrogen-side, imaziziritsidwa ndikusefedwa, kenako imalowa m'chipinda cha cathode cha electrolyzer; lye yomwe ili pansi pa cholekanitsa oxygen imadutsa pampu yoyendera madzi ya oxygen-side, imaziziritsidwa ndikusefedwa, kenako imalowa m'chipinda cha anode cha electrolyzer. Ubwino wa kayendedwe ka madzi a lye paokha ndikuti hydrogen ndi oxygen zomwe zimapangidwa ndi electrolysis zimakhala zoyera kwambiri, zomwe zimapewa chiopsezo chosakaniza hydrogen ndi oxygen separator; vuto ndilakuti kapangidwe ndi njira zake ndi zovuta komanso zokwera mtengo, ndipo ndikofunikiranso kuonetsetsa kuti kuthamanga kwa madzi, mutu, mphamvu ndi magawo ena a mapampu mbali zonse ziwiri zikugwirizana, zomwe zimapangitsa kuti ntchito ikhale yovuta, ndikuyika patsogolo kufunika kolamulira kukhazikika kwa mbali zonse ziwiri za dongosolo.

Mphamvu zitatu za kuchuluka kwa madzi ozungulira a lye pakupanga haidrojeni ndi madzi a electrolytic ndi momwe electrolyzer imagwirira ntchito

1️⃣Kuyenda kwa madzi ambiri m'thupi

(1) Zotsatira pa kuyera kwa haidrojeni ndi mpweya

Popeza haidrojeni ndi okosijeni zimakhala ndi kusungunuka kwina mu lye, kuchuluka kwa kayendedwe ka mpweya kumakhala kwakukulu kwambiri kotero kuti kuchuluka konse kwa haidrojeni ndi okosijeni wosungunuka kumawonjezeka ndikulowa mchipinda chilichonse ndi lye, zomwe zimapangitsa kuti chiyero cha haidrojeni ndi okosijeni chichepe potulukira mu electrolyzer; kuchuluka kwa kayendedwe ka mpweya kumakhala kwakukulu kwambiri kotero kuti nthawi yosungira ya haidrojeni ndi okosijeni yolekanitsa madzi imakhala yochepa kwambiri, ndipo mpweya womwe sunalekanitsidwe kwathunthu umabwezeretsedwanso mkati mwa electrolyzer ndi lye, zomwe zimakhudza magwiridwe antchito a electrochemical reaction ya electrolyzer ndi chiyero cha haidrojeni ndi okosijeni, ndipo izi zidzakhudza magwiridwe antchito a electrochemical reaction mu electrolyzer ndi chiyero cha haidrojeni ndi okosijeni, ndikukhudzanso kuthekera kwa zida zoyeretsera mpweya wa haidrojeni ndi okosijeni kutulutsa hydrogen ndi deoxygenate, zomwe zimapangitsa kuti hydrogen ndi okosijeni zisamagwire bwino ntchito komanso kukhudza mtundu wa zinthu.

(2) Zotsatira pa kutentha kwa thanki

Ngati kutentha kwa choziziritsira cha lye sikunasinthe, kuyenda kwa lye kwambiri kudzachotsa kutentha kochuluka kuchokera ku electrolyzer, zomwe zimapangitsa kuti kutentha kwa thanki kuchepe ndi mphamvu kuchuluke.

（3） Zotsatira pa mphamvu yamagetsi ndi mphamvu yamagetsi

Kuyenda kwambiri kwa lye kudzakhudza kukhazikika kwa mphamvu yamagetsi ndi magetsi. Kuyenda kwambiri kwa madzi kudzasokoneza kusinthasintha kwabwinobwino kwa mphamvu yamagetsi ndi magetsi, zomwe zimapangitsa kuti mphamvu yamagetsi ndi magetsi zisakhazikike mosavuta, zomwe zimayambitsa kusinthasintha kwa magwiridwe antchito a kabati yokonzanso ndi transformer, motero zimakhudza kupanga ndi ubwino wa haidrojeni.

(4) Kugwiritsa ntchito mphamvu mopitirira muyeso

Kuchuluka kwa madzi oyeretsedwa kungayambitsenso kuchuluka kwa mphamvu zomwe zimagwiritsidwa ntchito, ndalama zogwirira ntchito komanso kuchepa kwa mphamvu zomwe zimagwiritsidwa ntchito m'dongosolo. Makamaka pakuwonjezeka kwa madzi ozizira komanso kupopera ndi fani, madzi ozizira, ndi zina zotero, kotero kuti mphamvu zomwe zimagwiritsidwa ntchito zimawonjezeka, mphamvu zonse zomwe zimagwiritsidwa ntchito zimawonjezeka.

(5) Zimayambitsa kulephera kwa zida

Kuchuluka kwa madzi a lye kumawonjezera katundu pa pampu yoyendera madzi a lye, zomwe zikugwirizana ndi kuchuluka kwa madzi oyenda, kuthamanga kwa mpweya ndi kutentha kwa electrolyzer, zomwe zimakhudza ma electrode, ma diaphragms ndi ma gaskets mkati mwa electrolyzer, zomwe zingayambitse kulephera kapena kuwonongeka kwa zida, komanso kuwonjezeka kwa ntchito yokonza ndi kukonza.

2️⃣Kuyenda kwa magazi pang'ono kwambiri

(1) Zotsatira pa kutentha kwa thanki

Ngati kuchuluka kwa lye komwe kumazungulira sikukwanira, kutentha kwa electrolyzer sikungachotsedwe pakapita nthawi, zomwe zimapangitsa kuti kutentha kukwere. Kutentha kwambiri kumapangitsa kuti nthunzi yodzaza ndi madzi mu gawo la mpweya ikwere ndipo kuchuluka kwa madzi kukwere. Ngati madziwo sangachepetsedwe mokwanira, adzawonjezera kulemera kwa dongosolo loyeretsera ndikukhudza momwe madzi amayeretsera, ndipo zidzakhudzanso momwe chothandizira ndi choyatsira chimagwirira ntchito komanso nthawi ya moyo wa chothandizira ndi choyatsira.

(2) Mphamvu pa moyo wa diaphragm

Kutentha kopitilira muyeso kudzapangitsa kuti diaphragm ikule msanga, zomwe zimapangitsa kuti ntchito yake ichepe kapena kusweka, zomwe zimapangitsa kuti diaphragm ilowe mbali zonse ziwiri za haidrojeni ndi mpweya, zomwe zimakhudza chiyero cha haidrojeni ndi mpweya. Pamene kufalikira kwa mpweya kumayandikira malire otsika a kuphulika kotero kuti mwayi wa electrolyzer woopsa ukuwonjezeka kwambiri. Nthawi yomweyo, kutentha kopitilira muyeso kudzayambitsanso kuwonongeka kwa gasket yotsekera, ndikufupikitsa moyo wake wautumiki.

(3) Zotsatira pa ma electrode

Ngati kuchuluka kwa lye komwe kumazungulira ndi kochepa kwambiri, mpweya wopangidwa sungachoke pakati pa elekitirodi mwachangu, ndipo mphamvu ya electrolysis imakhudzidwa; ngati elekitirodiyo singagwirizane kwathunthu ndi lye kuti ichite electrochemical reaction, kusokonekera pang'ono kwa kutulutsa madzi ndi kuyaka kouma kudzachitika, zomwe zidzafulumizitsa kutayika kwa catalyst pa elekitirodi.

（4）Zotsatira pa voteji ya selo

Kuchuluka kwa madzi ozungulira ndi kochepa kwambiri, chifukwa ma thovu a haidrojeni ndi okosijeni omwe amapangidwa pakati pa elekitirodi sangathe kuchotsedwa pakapita nthawi, ndipo kuchuluka kwa mpweya wosungunuka mu elekitirodi kumawonjezeka, zomwe zimapangitsa kuti magetsi a chipinda chaching'ono achuluke komanso kuti mphamvu igwiritsidwe ntchito kwambiri.

Njira Zinayi Zodziwira Kuchuluka Kwabwino kwa Kuyenda kwa Lye

Kuti athetse mavuto omwe ali pamwambapa, ndikofunikira kuchitapo kanthu koyenera, monga kuyang'ana pafupipafupi kayendedwe ka madzi a lye kuti zitsimikizire kuti ikugwira ntchito bwino; kusunga bwino kutentha komwe kumazungulira electrolyzer; ndikusintha magawo ogwirira ntchito a electrolyzer, ngati kuli kofunikira, kuti apewe kufalikira kwa madzi ambiri kapena ochepa kwambiri.

Kuchuluka kwa kayendedwe ka madzi a lye kuyenera kutsimikiziridwa kutengera magawo enaake aukadaulo a electrolyzer, monga kukula kwa electrolyzer, kuchuluka kwa zipinda, kuthamanga kwa ntchito, kutentha kwa reaction, kupanga kutentha, kuchuluka kwa madzi a lye, kuzizira kwa madzi a lye, cholekanitsa mpweya wa hydrogen, kuchuluka kwa magetsi, kuyera kwa mpweya ndi zofunikira zina, kulimba kwa zida ndi mapaipi ndi zina.

Magawo aukadaulo Makulidwe:

kukula 4800x2240x2281mm

kulemera konse 40700Kg

Kukula kwa chipinda chogwira ntchito 1830, Chiwerengero cha zipinda 238

Kuchuluka kwa electrolyzer current 5000A/m²

kuthamanga kwa ntchito 1.6Mpa

kutentha kwa reaction 90℃±5℃

Seti imodzi ya electrolyzer product hydrogen voliyumu 1300Nm³/h

Mpweya wa Oxygen 650Nm³/h

mphamvu yamagetsi ya n13100A, DC voltage 480V

Choziziritsira cha Lye Φ700x4244mm

malo osinthira kutentha 88.2m²

Cholekanitsa cha haidrojeni ndi mpweya Φ1300x3916mm

cholekanitsa mpweya Φ1300x3916mm

Kuchuluka kwa potaziyamu hydroxide yankho 30%

Kukana madzi oyera >5MΩ·cm

Ubale pakati pa yankho la potaziyamu hydroxide ndi electrolyzer:

Pangani madzi oyera kukhala otulutsa mpweya, kutulutsa haidrojeni ndi mpweya, ndikuchotsa kutentha. Kuyenda kwa madzi ozizira kumagwiritsidwa ntchito kulamulira kutentha kwa lye kuti kutentha kwa electrolyzer reaction kukhale kokhazikika, ndipo kupanga kutentha kwa electrolyzer ndi kuyenda kwa madzi ozizira zimagwiritsidwa ntchito kuti zigwirizane ndi kutentha kwa dongosolo kuti zikwaniritse bwino ntchito komanso magawo ogwirira ntchito osunga mphamvu kwambiri.

Kutengera ntchito zenizeni:

Kulamulira kuchuluka kwa mpweya wozungulira madzi pa 60m³/h，

Madzi ozizira amatseguka pafupifupi 95%,

Kutentha kwa reaction ya electrolyzer kumayendetsedwa pa 90°C mukadzaza mokwanira，

Mphamvu yabwino kwambiri yogwiritsira ntchito electrolyzer DC ndi 4.56 kWh/Nm³H₂.

Zisanuchidule

Mwachidule, kuchuluka kwa madzi omwe amatuluka mu ayezi ndi chinthu chofunikira kwambiri pakupanga haidrojeni pogwiritsa ntchito electrolysis ya madzi, zomwe zimagwirizana ndi kuyera kwa mpweya, mphamvu ya chipinda, kutentha kwa electrolyzer ndi zina. Ndikoyenera kuwongolera kuchuluka kwa madzi omwe amatuluka mu ayezi pa 2 ~ 4 times/h/min. Mwa kuwongolera bwino kuchuluka kwa madzi omwe amatuluka mu ayezi, zimaonetsetsa kuti zida zopangira hydrogen zikugwira ntchito bwino komanso motetezeka kwa nthawi yayitali.

Mu njira yopangira haidrojeni pogwiritsa ntchito electrolysis ya madzi mu alkaline electrolyzer, kukonza bwino magawo a momwe ntchito ikuyendera komanso kapangidwe ka electrolyzer runner, kuphatikiza ndi zinthu za electrode ndi kusankha zinthu za diaphragm ndizofunikira kwambiri pakuwonjezera mphamvu yamagetsi, kuchepetsa mphamvu ya thanki ndikusunga mphamvu yogwiritsira ntchito.

--Lumikizanani nafe--

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