Kugubuduza kwa graphite bipolar mbale

Bipolar plate, yomwe imadziwikanso kuti mbale yosonkhanitsa, ndi imodzi mwazinthu zofunika kwambiri pa cell cell. Lili ndi ntchito zotsatirazi ndi katundu: kulekanitsa mafuta ndi oxidizer, kuteteza mpweya kulowa; Sonkhanitsani ndi kuchita panopa, mkulu madutsidwe; Njira yoyendetsera yopangidwa ndi kukonzedwa imatha kugawa gasi molingana ndi momwe ma elekitirodi amachitira. Pali njira zingapo zogudubuza mbale za graphite bipolar.

1, njira yogubuduza mbale yamitundu yambiri:

Njira yogwirira ntchito ya makina osanjikiza osanjikiza osanjikiza: chowotchacho chimakokedwa kuchokera ku ndodo yokhotakhota, ndi zomatira mbali zonse za dothi kudzera mu chopukusira chomangira, ndi mpukutu wokhotakhota ndi chotchingira zimaphatikizidwa kuti zikhale zitatu. -ndi wandiweyani mbale, ndipo kusiyana pakati pa odzigudubuza amakulungidwa mu makulidwe ena. Kenako perekani mu chotenthetsera kutentha ndi kuuma. Kupyolera mu kulamulira makulidwe, pukutani, sinthani makulidwewo kuti mufikire kukula kwake, ndiyeno tumizani ku chipangizo chowotcha kuti muwotchere. Pamene binder ili ndi carbonized, pamapeto pake imakanikizidwa kukhala mawonekedwe ndi makina osindikizira.

Kugwiritsa ntchito mosalekeza kugubuduza njira, kusintha graphite mbale ya 0.6-2mm makulidwe akhoza mbamuikha, amene ali bwino kuposa single-wosanjikiza anagubuduza makina, koma chifukwa cha makulidwe a mbale adzabweretsanso zolakwa za wosanjikiza anavula mbale, amene adzabweretsa. zovuta kugwiritsa ntchito. Chifukwa chake ndikuti kusefukira kwa mpweya kumakhalabe pakati pa interlayer panthawi ya kukanikiza, zomwe zimalepheretsa kugwirizana kwapakati pakati pa zigawozo. Njira yabwino ndiyo kuthetsa vuto la gasi wotulutsa mpweya mukamakanikiza.

Single-wosanjikiza mbale kugubuduza, ngakhale mbale kuthamanga ndi yosalala, koma osati wandiweyani kwambiri. Pamene kuumbako kuli kochuluka kwambiri, kufanana kwake ndi kachulukidwe kake kumakhala kovuta kutsimikizira. Kuti apange mbale zokhuthala, matabwa a multilayer amayikidwa pamwamba ndikukanikizidwa m'magulu amitundu yambiri. Chomangira chimawonjezedwa pakati pa zigawo ziwiri zilizonse kenako ndikugudubuza. Pambuyo pakupanga, imatenthedwa kuti ikhale carbonize ndikuumitsa chomangiracho. Njira yopukutira mbale ya multilayer imachitika pamakina opitilira muyeso.

2, single-wosanjikiza mbale mosalekeza anagubuduza njira:

Kapangidwe ka wodzigudubuza tichipeza: (1) hopper kwa nyongolotsi graphite; (2) Kugwedera kudyetsa chipangizo; (3) Lamba wa conveyor; (4) Odzigudubuza anayi; (5) Ma heater awiri; (6) wodzigudubuza kwa kulamulira pepala makulidwe; Zodzigudubuza za embossing kapena patterning; (8) ndi mpukutu; (9) Kudula mpeni; (10) Mpukutu wazinthu zomalizidwa.

Njira yogubuduzayi imatha kukanikiza graphite yosinthika kukhala mapepala opanda zomangira, ndipo njira yonseyi imachitika pazida zapadera zokhala ndi zodzigudubuza.

Njira yogwirira ntchito: graphite yoyera kwambiri imalowa mu chipangizo chodyera kuchokera ku hopper ndikugwera pa lamba wa conveyor. Pambuyo kuthamanga wodzigudubuza anagubuduza, kupanga ena makulidwe a zinthu wosanjikiza. Chipangizo chotenthetsera chimapanga kutentha kwakukulu kuti chichotse mpweya wotsalira muzinthu zosanjikiza ndikukulitsa graphite yosatulutsidwa komaliza. Kenako zinthu zomwe zimapangidwira koyambirira zimadyetsedwa mu chodzigudubuza chomwe chimawongolera kukula kwa makulidwe ndikukanikizidwanso molingana ndi kukula kwake kuti mupeze mbale yathyathyathya yokhala ndi makulidwe a yunifolomu ndi kachulukidwe kena. Pomaliza, mutatha kudula ndi chodula, pukutani mbiya yomalizidwa.

Zomwe zili pamwambazi ndizomwe zimapangidwira mbale ya graphite bipolar, ndikuyembekeza kukuthandizani. Kuphatikiza apo, zida zokhala ndi mpweya zimaphatikizapo graphite, zida za kaboni zoumbidwa ndi graphite yowonjezereka (yosinthika). Ma mbale ochiritsira a bipolar amapangidwa ndi graphite wandiweyani ndikumakina munjira zoyendera mpweya. Mbale ya graphite bipolar ili ndi mankhwala okhazikika komanso kukana kukhudzana kochepa ndi MEA.