Mbale ya bipolar cell yamafuta

Mbale ya bipolar ndiye gawo lalikulu la reactor, zomwe zimakhudza kwambiri magwiridwe antchito ndi mtengo wa reactor. Pakadali pano, mbale ya bipolar imagawidwa makamaka m'magawo a graphite, mbale yophatikizika ndi mbale yachitsulo malinga ndi zinthuzo.

Mbale ya bipolar ndi imodzi mwa zigawo zazikulu za PEMFC, ntchito yake yayikulu ndikunyamula mpweya kudzera m'munda woyenda pamwamba, kusonkhanitsa ndikuyendetsa mphamvu, kutentha ndi madzi zomwe zimapangidwa ndi reaction. Kutengera mtundu wa zinthu, kulemera kwa PEMFCs stack ndi pafupifupi 60% mpaka 80% ndipo mtengo wake ndi pafupifupi 30%. Malinga ndi zofunikira pa ntchito ya mbale ya bipolar, komanso poganizira za acidic electrochemical reaction environment ya PEMFC, mbale ya bipolar imafunika kukhala ndi zofunikira kwambiri pamagetsi, kulimba kwa mpweya, mphamvu zamakanika, kukana dzimbiri, ndi zina zotero.

Mbale ziwiri malinga ndi zipangizo zimagawidwa m'magulu atatu, makamaka m'magulu atatu, mbale ya graphite, mbale yachitsulo, mbale ziwiri za graphite, ndiye mbale yogwiritsidwa ntchito kwambiri masiku ano, mbale ziwiri za PEMFC, ma conductivity amagetsi, ma conductivity a kutentha, kukhazikika bwino komanso kukana dzimbiri komanso magwiridwe antchito ena, koma zinthu zosauka zamakina, kusweka, komanso zovuta pamakina zimapangitsa kuti pakhale mavuto okwera mtengo omwe amakumana ndi opanga ambiri.

Graphitembale yosinthasintha maganizoChiyambi:

Ma plate a bipolar opangidwa ndi graphite ali ndi mphamvu yabwino yoyendetsera magetsi, mphamvu yoyendetsera kutentha komanso kukana dzimbiri, ndipo ndi ma plate a bipolar omwe amagwiritsidwa ntchito kwambiri mu PEMFCS. Komabe, zovuta zake ndizodziwikiratu: kutentha kwa graphitization kwa plate ya graphite nthawi zambiri kumakhala kokwera kuposa 2500℃, komwe kuyenera kuchitika motsatira njira yotenthetsera yokhwima, ndipo nthawi yake ndi yayitali; Njira yopangira makina ndi yocheperako, nthawi yayitali, ndipo kulondola kwa makinawo ndi kwakukulu, zomwe zimapangitsa kuti plate ya graphite ikhale yokwera mtengo; Graphite ndi yofooka, plate yomalizidwa iyenera kusamalidwa mosamala, kusonkhanitsa kumakhala kovuta; Graphite ndi yotupa, kotero ma plate ayenera kukhala ndi makulidwe a mamilimita angapo kuti mpweya ulekanitsidwe, zomwe zimapangitsa kuti zinthuzo zikhale zochepa, koma chinthu chomalizidwa cholemera.

Kukonzekera kwa graphitembale yosinthasintha maganizo：

Ufa wa toner kapena graphite umasakanizidwa ndi utomoni wopangidwa ndi graphitized, wopangidwa ndi makina, ndi graphitized pa kutentha kwakukulu (nthawi zambiri pa 2200 ~ 2800C) mumlengalenga wochepetsera kapena pansi pa vacuum. Kenako, mbale ya graphite imayikidwa kuti itseke dzenjelo, kenako makina owongolera manambala amagwiritsidwa ntchito kukonza njira yofunikira ya mpweya pamwamba pake. KUTENTHA KWAMBIRI KWA GRAPHITIZATION NDI KUCHITA MACHINING A MAGASI NDI ZIFUKWA ZIKULU ZA KUDYA KWAMBIRI KWA MABALETI A BIPOLAR, NDI KUCHITA MACHINING KUMACHITA pafupifupi 60% YA NDALAMA YONSE YA MAFUTA.

Mbale ya Bipolarndi chimodzi mwa zigawo zofunika kwambiri mu fuel cell stack. Ntchito zake zazikulu ndi izi:

1, Kulumikizana kwa batri imodzi

2、Perekani mafuta (H2) ndi mpweya (02)

3, Kusonkhanitsa ndi kuyendetsa zinthu panopa

4, Support stack ndi MEA

5, Kuchotsa kutentha komwe kumapangidwa ndi kuyankhidwa

6, kukhetsa madzi omwe apangidwa mu yankho