I-Hydrogen ne-Alkali Circulation ku-Alkaline Electrolyzer Water Electrolysis Inqubo Yokukhiqiza I-Hydrogen

Enqubweni yokukhiqiza i-hydrogen electrolyzer ye-alkali, indlela yokwenza idivayisi isebenze ngokuzinzile, ngaphezu kwekhwalithi ye-electrolyzer ngokwayo, lapho inani lokujikeleza kwe-lye lesethingi liphinde libe yisici esibalulekile sethonya.

Muva nje, ku-China Industrial Gases Association Hydrogen Professional Committee's Safety Production Technology Exchange Meeting, u-Huang Li, inhloko yeHydrogen Water Electrolysis Hydrogen Operation and Maintenance Programme, wabelane ngolwazi lwethu ngokulungiselelwa kwevolumu yokujikeleza kwe-hydrogen ne-lye ekuhlolweni kwangempela nokusebenza kanye nenqubo yokulungisa.

Okulandelayo yiphepha lokuqala.

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Ngaphansi kwesizinda sesu lezwe le-dual-carbon, i-Ally Hydrogen Energy Technology Co., Ltd, esebenze ngokukhethekile ekukhiqizeni i-hydrogen iminyaka engu-25 futhi yaba ngowokuqala ukuzibandakanya emkhakheni wamandla e-hydrogen, isiqalile ukwandisa ukuthuthukiswa kobuchwepheshe be-hydrogen eluhlaza kanye nemishini, okuhlanganisa ukwakhiwa kwama-electrolysis tank runners, ukukhiqizwa kwemishini, i-electrode Plating, kanye nokuhlolwa kwe-electrolysis tank kanye nokusebenza nokusebenza.

EyodwaI-Alkaline Electrolyzer Working Principle

Ngokudlula i-current ngqo nge-electrolyzer egcwele i-electrolyte, ama-molecule amanzi asabela ngokwe-electrochemically kuma-electrode futhi abola abe yi-hydrogen nomoya-mpilo. Ukuze kuthuthukiswe ukuqhutshwa kwe-electrolyte, i-electrolyte evamile iyisisombululo samanzi esine-concentration ye-30% ye-potassium hydroxide noma i-25% ye-sodium hydroxide.

I-electrolyzer inamaseli amaningana e-electrolytic. Igumbi ngalinye le-electrolysis liqukethe i-cathode, i-anode, i-diaphragm ne-electrolyte. Umsebenzi oyinhloko we-diaphragm ukuvimbela ukungena kwegesi. Engxenyeni engezansi ye-electrolyzer kukhona i-inlet ne-outlet evamile, ingxenye engenhla yengxube ye-gas-liquid ye-alkali ne-oxy-alkali flow flow channel. Idluliselwe ku-voltage ethile yamanje eqondile, lapho i-voltage idlula i-voltage yokubola okucatshangelwayo yamanzi engu-1.23v kanye ne-thermal neutral voltage 1.48V ngaphezu kwevelu ethile, i-electrode kanye nokusabela kwe-redox esibonakalayo soketshezi kwenzeka, amanzi abola abe yi-hydrogen nomoya-mpilo.

Okubili Ukuthi i-lye isakazwa kanjani

1️⃣I-Hydrogen, I-Oxygen Side Lye Mixed Cycle

Ngalolu hlobo lokujikeleza, i-lye ingena empompini yomjikelezo we-lye ngepayipi elixhumayo elingaphansi kwesihlukanisi se-hydrogen nesihlukanisi se-oxygen, bese ingena emakamelweni e-cathode ne-anode e-electrolyzer ngemva kokupholisa nokuhlunga. Izinzuzo zokujikeleza okuxubile ziyisakhiwo esilula, inqubo emfushane, izindleko eziphansi, futhi ingaqinisekisa ubukhulu obufanayo bokujikeleza kwe-lye ku-cathode namakamelo e-anode e-electrolyzer; okubi ukuthi ngakolunye uhlangothi, kungase kuthinte ukuhlanzeka kwe-hydrogen nomoya-mpilo, futhi ngakolunye uhlangothi, kungase kubangele izinga lesihlukanisi se-hydrogen-oxygen ukuba lingasebenzi, okungase kubangele ingozi eyengeziwe yokuxuba i-hydrogen-oxygen. Njengamanje, uhlangothi lwe-hydrogen-oxygen lomjikelezo wokuxuba i-lye luyinqubo evame kakhulu.

2️⃣Hlukanisa ukujikeleza kwe-hydrogen ne-lye eseceleni komoya-mpilo

Lolu hlobo lokujikeleza ludinga amaphampu amabili e-lye, okungukuthi ama-circulation amabili angaphakathi. I-lye engaphansi kwesihlukanisi se-hydrogen idlula iphampu ye-hydrogen-side circulation, ipholile futhi ihlungwe, bese ingena ekamelweni le-cathode le-electrolyzer; i-lye engaphansi kwesihlukanisi se-oksijini idlula empompini yomjikelezo we-oxygen-side, ipholile futhi ihlungwe, bese ingena ekamelweni le-anode le-electrolyzer. Inzuzo yokujikeleza okuzimele kwe-lye ukuthi i-hydrogen ne-oksijini ekhiqizwa yi-electrolysis ihlanzekile kakhulu, igwema ngokomzimba ingozi yokuxuba i-hydrogen ne-oxygen separator; okubi ukuthi isakhiwo kanye nenqubo kuyinkimbinkimbi futhi kuyabiza, futhi kuyadingeka futhi ukuqinisekisa ukuhambisana kwesilinganiso sokugeleza, ikhanda, amandla kanye neminye imingcele yamaphampu ezinhlangothini zombili, okwandisa ubunzima bokusebenza, futhi kubeka phambili imfuneko yokulawula ukuzinza kwezinhlangothi zombili zesistimu.

Imithelela emithathu yezinga lokugeleza le-lye ekukhiqizweni kwe-hydrogen ngamanzi e-electrolytic kanye nesimo sokusebenza se-electrolyzer

1️⃣Ukuzungeza ngokweqile kwe-lye

(1) Umthelela ekuhlanzekeni kwe-hydrogen nomoya-mpilo

Ngenxa yokuthi i-hydrogen nomoya-mpilo kunokuncibilika okuthile ku-lye, umthamo wokujikeleza mkhulu kakhulu kangangokuthi inani eliphelele le-hydrogen ne-oksijini encibilikile liyakhula futhi lingene ekamelweni ngalinye nge-lye, okubangela ukuhlanzeka kwe-hydrogen nomoya-mpilo kunciphe ekuphumeni kwe-electrolyzer; umthamo wokujikeleza mkhulu kakhulu kangangokuthi isikhathi sokugcinwa kwesihlukanisi se-hydrogen ne-oxygen liquid sifushane kakhulu, futhi igesi engakahlukaniswa ngokuphelele ibuyiselwa ngaphakathi kwe-electrolyzer nge-lye, okuthinta ukusebenza kahle kwe-electrolyzer's electrochemical reaction kanye nokuhlanzeka kwe-hydrogen ne-oksijeni, futhi lokhu kuzothinta ukusebenza kahle kokusabela kwe-electrochemical ku-electrolyzer ne-hydrogen kanye ne-oksijini kuthinta ikhono le-electrolyzer ne-oksijeni. Imishini yokukhipha i-hydrogen ne-deoxygenate, okuholela kumphumela omubi wokuhlanzwa kwe-hydrogen nomoya-mpilo futhi kuthinte ikhwalithi yemikhiqizo.

(2) Umphumela kuzinga lokushisa lethangi

Ngaphansi kwesimo sokuthi izinga lokushisa lokuphuma kwe-lye cooler lihlala lingashintshile, ukugeleza kwe-lye okuningi kuzosusa ukushisa okwengeziwe ku-electrolyzer, kubangele ukwehla kwezinga lokushisa kwethangi namandla anda.

(3) Umthelela wamanje kanye ne-voltage

Ukujikeleza ngokweqile kwe-lye kuzothinta ukuzinza kwamanje kanye ne-voltage. Ukugeleza koketshezi okweqile kuzophazamisa ukuguquguquka okuvamile kwamandla wamanje kanye ne-voltage, kubangele ukuthi imanje kanye ne-voltage zingazinzisi kalula, okubangele ukushintshashintsha kwesimo sokusebenza sekhabhinethi yokulungisa kabusha kanye ne-transformer, futhi ngaleyo ndlela kuthinte ukukhiqizwa nekhwalithi ye-hydrogen.

(4) Ukwenyuka kokusetshenziswa kwamandla

Ukujikeleza kwe-lye ngokweqile kungaholela ekwandeni kokusetshenziswa kwamandla, ukwanda kwezindleko zokusebenza kanye nokunciphisa ukusebenza kahle kwamandla esistimu. Ikakhulukazi ekwandeni kwesistimu yokujikeleza yangaphakathi yamanzi okupholisa kanye nesifutho sokujikeleza kwangaphandle kanye nefeni, umthwalo wamanzi abandayo, njll., ukuze ukusetshenziswa kwamandla kukhule, ukusetshenziswa kwamandla okuphelele kuyanda.

(5) Banga ukwehluleka kwezisetshenziswa

Ukujikeleza kwe-lye ngokweqile kukhulisa umthwalo empompini yokujikeleza ye-lye, ehambisana nokukhuphuka kwezinga lokugeleza, ingcindezi kanye nokushintshashintsha kwezinga lokushisa ku-electrolyzer, okubuye kuthinte ama-electrode, ama-diaphragms nama-gaskets ngaphakathi kwe-electrolyzer, okungase kubangele ukungasebenzi kahle kwemishini noma ukulimala, kanye nokwanda komthwalo wokulungisa nokulungiswa.

2️⃣Ukujikeleza kwe-lye kuncane kakhulu

(1) Umthelela kuzinga lokushisa lethangi

Uma umthamo ojikelezayo we-lye unganele, ukushisa ku-electrolyzer akukwazi ukususwa ngesikhathi, okuholela ekwenyukeni kwezinga lokushisa. Indawo yokushisa ephezulu yenza ukucindezelwa komhwamuko ogcwele amanzi esigabeni segesi kukhuphuke futhi okuqukethwe kwamanzi kukhuphuke. Uma amanzi engakwazi ukufingqa ngokwanele, kuzokwandisa umthwalo wesistimu yokuhlanza futhi kuthinte umphumela wokuhlanza, futhi kuzophinde kuthinte umphumela nesikhathi sokuphila se-catalyst ne-adsorbent.

(2) Umthelela empilweni ye-diaphragm

Imvelo eqhubekayo yokushisa ephezulu izosheshisa ukuguga kwe-diaphragm, yenze ukusebenza kwayo kwehle noma ngisho nokuphuka, kube lula ukubangela i-diaphragm nhlangothi zombili ze-hydrogen ne-oxygen mutual permeability, okuthinta ukuhlanzeka kwe-hydrogen nomoya-mpilo. Lapho ukungena okuhlangene eduze komkhawulo ophansi wokuqhuma ukuze amathuba okuba ingozi ye-electrolyzer ande kakhulu. Ngesikhathi esifanayo, izinga lokushisa eliphezulu eliqhubekayo lizophinde libangele ukulimala kokuvuza ku-gasket yokuvala, kufinyeze impilo yayo yesevisi.

(3) Umthelela kuma-electrode

Uma inani elijikelezayo le-lye lincane kakhulu, igesi ekhiqizwayo ayikwazi ukushiya isikhungo esisebenzayo se-electrode ngokushesha, futhi ukusebenza kahle kwe-electrolysis kuyathinteka; uma i-electrode ingakwazi ukuthintana ngokugcwele ne-lye ukuze iqhube ukusabela kwe-electrochemical, ukukhishwa okungavamile okuyingxenye kanye nokushisa okomile kuzokwenzeka, ukusheshisa ukuchithwa kwe-catalyst ku-electrode.

(4) Umthelela ku-voltage yeselula

Inani le-lye elijikelezayo lincane kakhulu, ngoba amabhamuza e-hydrogen nomoya-mpilo akhiqizwe enkabeni esebenzayo ye-electrode ayikwazi ukususwa ngesikhathi, futhi inani lamagesi ancibilikisiwe ku-electrolyte liyakhula, okubangela ukwanda kwamandla kagesi egunjini elincane kanye nokukhuphuka kokusetshenziswa kwamandla.

Izindlela Ezine zokunquma izinga lokugeleza kwe-lye elilungile

Ukuxazulula izinkinga ezingenhla, kuyadingeka ukuthatha izinyathelo ezihambisanayo, njengokuhlola njalo uhlelo lokujikeleza kwe-lye ukuze kuqinisekiswe ukusebenza kwalo okujwayelekile; ukugcina izimo ezinhle zokushisa ukushisa eduze kwe-electrolyzer; kanye nokulungisa imingcele yokusebenza ye-electrolyzer, uma kunesidingo, ukuze kugwenywe ukwenzeka komthamo omkhulu kakhulu noma omncane kakhulu wokujikeleza kwe-lye.

Izinga elilungile lokugeleza kwe-lye lidinga ukunqunywa ngokusekelwe kumapharamitha athile obuchwepheshe e-electrolyzer, njengosayizi we-electrolyzer, inombolo yamagumbi, ukucindezela kokusebenza, izinga lokushisa lokusabela, ukukhiqizwa kokushisa, ukugxiliswa kwe-lye, i-lye cooler, isihlukanisi se-hydrogen-oxygen, ukuminyana kwamanje, ukuhlanzeka kwegesi nezinye izidingo, okokusebenza nokuqina kwamapayipi nezinye izici.

Ubukhulu bemingcele yezobuchwepheshe:

osayizi 4800x2240x2281mm

isisindo esiphelele 40700Kg

Usayizi wekamelo osebenzayo1830、Inani lamakamelo 238个

Ukuminyana kwamanje kwe-Electrolyzer 5000A/m²

ingcindezi yokusebenza 1.6Mpa

lokushisa lokusabela 90℃±5℃

Isethi eyodwa yomkhiqizo we-electrolyzer ivolumu ye-hydrogen engu-1300Nm³/h

Umkhiqizo Oxygen 650Nm³/h

i-n13100A eqondile yamanje, i-dc voltage 480V

I-Lye Cooler Φ700x4244mm

indawo yokushintshanisa ukushisa engu-88.2m²

Isihlukanisi se-hydrogen ne-oxygen Φ1300x3916mm

isihlukanisi se-oxygen Φ1300x3916mm

Isixazululo se-Potassium hydroxide 30%

Inani elimsulwa lokumelana namanzi >5MΩ·cm

Ubudlelwano phakathi kwesixazululo se-potassium hydroxide ne-electrolyzer:

Yenza amanzi ahlanzekile aqhube, khipha i-hydrogen nomoya-mpilo, futhi ususe ukushisa. Ukugeleza kwamanzi okupholisa kusetshenziselwa ukulawula izinga lokushisa le-lye ukuze izinga lokushisa lokusabela kwe-electrolyzer lizinze ngokuqhathaniswa, futhi ukukhiqizwa kokushisa kwe-electrolyzer nokugeleza kwamanzi okupholisa kusetshenziselwa ukufanisa ibhalansi yokushisa yesistimu ukuze kuzuzwe isimo esingcono kakhulu sokusebenza kanye nemingcele yokusebenza yokonga kakhulu amandla.

Ngokusekelwe emisebenzini yangempela:

Ukulawulwa kwevolumu ye-Lye ku-60m³/h,

Ukugeleza kwamanzi okupholisa kuvula cishe ku-95%,

Izinga lokushisa lokuphendula le-electrolyzer lilawulwa ku-90 ° C ngomthwalo ogcwele,

Isimo esihle kakhulu sokusetshenziswa kwamandla kagesi we-electrolyzer DC ngu-4.56 kWh/Nm³H₂.

Ezinhlanufinyeza

Ukufingqa, umthamo wokujikeleza we-lye uyipharamitha ebalulekile enqubweni yokukhiqizwa kwe-hydrogen nge-electrolysis yamanzi, ehlobene nokuhlanzeka kwegesi, i-chamber voltage, izinga lokushisa le-electrolyzer kanye neminye imingcele. Kuyafaneleka ukulawula ivolumu ejikelezayo ngezikhathi ezingu-2~4/h/min yokushintshwa kwe-lye ethangini. Ngokulawula ngokuphumelelayo umthamo wokujikeleza we-lye, iqinisekisa ukusebenza okuzinzile nokuphephile kwemishini yokukhiqiza i-hydrogen electrolysis yamanzi isikhathi eside.

Enqubweni yokukhiqiza i-hydrogen nge-electrolysis yamanzi ku-alkaline electrolyzer, ukwenziwa kahle kwemingcele yesimo sokusebenza kanye nomklamo womgijimi we-electrolyzer, kuhlanganiswe nezinto ze-electrode kanye nokukhethwa kwezinto ezibonakalayo ze-diaphragm kuyisihluthulelo sokwandisa okwamanje, ukunciphisa i-voltage yethangi nokulondoloza ukusetshenziswa kwamandla.

--Xhumana nathi--

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