Purati yeBipolar ndiyo chinhu chikuru chereactor, icho chine simba guru pakushanda kwayo uye mutengo wayo. Parizvino, purati yeBipolar yakakamurwa zvikuru kuita graphite plate, composite plate uye simbi plate zvichienderana nezvinhu.
Bipolar plate ndeimwe yezvikamu zvikuru zvePEMFC, basa rayo guru nderekutakura gasi kuburikidza nepamusoro pemvura, kuunganidza uye kuitisa magetsi, kupisa nemvura zvinogadzirwa nereaction. Zvichienderana nerudzi rwezvinhu, huremu hwePEMFCs stack hunenge 60% kusvika 80% uye mutengo wacho ungangove 30%. Zvichienderana nezvinodiwa zve bipolar plate, uye tichifunga nezve acidic electrochemical reaction environment yePEMFC, bipolar plate inofanirwa kuve nezvinodiwa zvepamusoro zvemagetsi, kusimba kwemhepo, hunhu hwemakanika, kuramba ngura, nezvimwewo.
Maplate maviri zvichienderana nezvinhu zvakakamurwa kuita mapoka matatu e graphite plate, composite plate, metal plate, graphite double plate ndiyo inonyanya kushandiswa pari zvino PEMFC double plate, electrical conductivity, thermal conductivity, kugadzikana kwakanaka uye ngura resistance nezvimwe mashandiro asi hunhu husina kunaka hwemakanika, brittle, machine machine matter zvinotungamira kumatambudziko emutengo wakakwira anotambudzwa nevagadziri vazhinji.
Grafitindiro yepfungwa inochinja-chinjasumo：
Maplate eBipolar akagadzirwa negraphite ane conductivity yakanaka yemagetsi, conductivity yekupisa uye corrosion, uye ndiwo maplate eBipolar anonyanya kushandiswa muPEMFCS. Zvisinei, kuipa kwawo kuri pachenawo: tembiricha yegraphitization yeplate yegraphite inowanzo kuve yakakwira kupfuura 2500℃, iyo inofanirwa kuitwa zvichienderana nemaitiro ekudziya akaomarara, uye nguva yakareba; Maitiro ekugadzira anononoka, kutenderera kwacho kwakareba, uye kurongeka kwemuchina kwakakwira, zvichikonzera kudhura kwakanyanya kweplate yegraphite; Graphite haina kusimba, plate yakapedzwa inofanira kubatwa nekungwarira, kuungana kwakaoma; Graphite ine maburi, saka plate dzinofanira kunge dzakakora mamirimita mashoma kuti magasi aparadzane, zvichikonzera density yakaderera yezvinhu pachazvo, asi chigadzirwa chakapedzwa chinorema.
Kugadzirira graphitendiro yepfungwa inochinja-chinja：
Upfu hwetoner kana graphite hunosanganiswa ne graphitized resin, hunodzvanywa, uye hunoiswa graphitized pakupisa kwakanyanya (kazhinji pa 2200 ~ 2800C) mumhepo inodzikira kana pasi pemamiriro e vacuum. Zvadaro, graphite plate inoiswa mumvura kuti ivhare gomba, uye ipapo muchina wekutonga wenhamba unoshandiswa kugadzirisa nzira inodiwa yegesi pamusoro payo. KUTENGIRA KWAKANYANYA KWEGRAPHITIZA UYE KUSHANDISA MASHENERO EGASI NDIZVO ZVIKURU ZVEKUDYA KWAKANYANYA KWEMA BIPOLAR PLATES, NEKUSHANDISA MASHENE KUNOITA 60% YEMARI YOSE YEFUEL CELL.
Ndiro yeBipolarndeimwe yezvinhu zvakakosha mu fuel cell stack. Mabasa ayo makuru ndeaya anotevera:
1, kubatanidza bhatiri rimwe chete
2. Kuendesa mafuta (H2) nemhepo (02)
3, Kuunganidzwa kwazvino uye kutungamirwa kwemafuta
4, rutsigiro rwedura uye MEA
5. Kubvisa kupisa kunokonzereswa nekuita kwechinhu ichi
6. Dururira mvura inobuda mukuita kwemvura
Nguva yekutumira: Chikunguru-29-2022