Kev ua haujlwm ntawm cov phaj bipolar
Bipolar phaj (BPP) yog ib qho tseem ceeb ntawm cov roj cell. Nws lub luag haujlwm tseem ceeb yog los txhawb MEA, muab hydrogen, oxygen thiab cov kua dej txias, cais hydrogen thiab oxygen, sau cov electrons, thiab ua kom sov. Muab nws figuratively,yog tias cov roj cell pawg raug suav tias yog tib neeg lub cev, BPP yog sib npaug rau cov pob txha thiab cov hlab ntsha ntawm tib neeg lub cev.
·Txhawb MEA. MEA yog tsim los ntawm proton exchange membrane (MEM), catalyst txheej (CL), roj diffusion txheej (GDL) thiab lwm yam khoom. Cov pa tuab tuab yog {{0}}.4 ~ 0.5mm thiab tsis muaj kev txhawb nqa tus kheej txaus thiab lub zog. Hauv qhov sib piv, BPP feem ntau yog ua los ntawm cov ntaub ntawv nruj, thiab lub zog compressive ntawm cov khoom yog siab dua li ntawm MEA, uas tuaj yeem ua lub luag haujlwm txhawb MEA. Figuratively hais lus, BPP yog zoo li "skeleton" ntawm cov hluav taws xob pawg, txhawb cov mos mos "MEA" ntawm cov hluav taws xob pawg.
· Los ntawm kev tsim thiab ua tiav cov dej ntws, cov kua dej tuaj yeem sib npaug rau cov txheej txheem tshuaj tiv thaiv electrode rau cov tshuaj tiv thaiv electrochemical. Muaj cov channel nyob rau saum npoo ntawm BPP uas sib npaug faib cov tshuaj tiv thaiv gases, hu ua flow fields, kom ntseeg tau tias cov tshuaj tiv thaiv nruab nrab yog sib npaug faib thoob plaws hauv tag nrho cov electrode. Figuratively hais lus, BPP kuj yog cov hlab ntsha ntawm pawg hluav taws xob, thauj roj (hydrogen) thiab oxidant (oxygen) mus rau cov ntaub so ntswg "MEA" ntawm cov hluav taws xob pawg, ua rau cov hydrogen thiab oxygen reacts ntawm electrodes los tsim hluav taws xob hluav taws xob. Cov kav dej ntawm BPP zoo li lub aorta thiab cov hlab ntsha tseem ceeb ntawm tib neeg lub cev, thauj hydrogen thiab oxygen mus rau txhua lub cell ntawm pawg. Cov ndlwg ntawm BPP zoo li capillaries hauv tib neeg lub cev, thauj hydrogen thiab oxygen mus rau txhua lub ces kaum ntawm tib lub xov tooj ntawm tes electrode, tso cai rau lawv ua kom muaj zog.
· Sib cais hydrogen thiab oxygen kom tsis txhob sib xyaw ua ke. BPP yuav tsum yog ib qho roj barrier thiab feem ntau muaj cov qauv uas tsis yog ntxeem tau ntawm cov dej chamber.
· Sau thiab ua hluav taws xob tam sim no. BPP yuav tsum yog tus neeg xyuas pib zoo ntawm cov hluav taws xob kom tsis txhob muaj kev tiv thaiv ntau dhau thiab cov khoom siv hluav taws xob ntau dhau thaum cov roj hluav taws xob muaj zog ua haujlwm.
· Ua cua sov. BPP yuav tsum yog tus neeg xyuas pib zoo ntawm cov cua sov kom ntseeg tau tias qhov sib txawv ntawm qhov kub thiab txias thaum lub roj teeb ua haujlwm, kom cov hluav taws kub ntawm lub roj teeb tuaj yeem tawm tau zoo.