Txhim Kho Qhov Tseeb ntawm Slurry Mixing Ratio nrog Inline Density Meters

Lonnmeter Group, ib lub tuam txhab tsim khoom thiab muab khoom siv ntsuas qhov ceev hauv kab, tau mob siab rau ntau xyoo los muab cov kev daws teeb meem rau cov neeg siv khoom thoob ntiaj teb. Cov kev daws teeb meem no tau pab ntau lub Hoobkas kev lag luam, cov chaw tsim hluav taws xob, thiab cov tuam txhab ua hlau kom txo cov nqi thiab txhim kho kev ua haujlwm zoo.

Lub Luag Haujlwm Tseem Ceeb ntawm Slurry Mixing

Qhov kev ua tau zoo ntawm cov roj hydrogen cell MEAs nyob ntawm qhov sib xws thiab kev ruaj khov ntawm cov catalyst slurries. Piv txwv li, anode slurries xav tau 15% Pt-C catalyst dispersed sib npaug hauv cov kuab tshuaj sib xyaw ntawm 40% dej deionized, 40% methanol, thiab 5% ionomer kua; cathode slurries xav tau cov feem pua ​​​​​​ntau dua ntawm catalyst (20%) thiab binder (10%). Qhov piv txwv meej no tsis tsuas yog cuam tshuam rau cov khoom siv lub cev ntawm cov slurry xwb tab sis kuj cuam tshuam ncaj qha rau kev faib tawm ntawm cov chaw ua haujlwm catalytic thiab proton conductivity.

Kev tswj qhov ceev tsis zoo yuav ua rau cov catalyst sib sau ua ke lossis ua rau cov av noo, ua rau cov catalyst uas tau coated tsis sib npaug thiab txawm tias tag nrho cov roj teeb ua haujlwm. Piv txwv li, qhov ceev ntau dua yuav qhia tau tias cov catalyst lossis cov kuab tshuaj evaporation ntau dhau, ua rau cov slurry viscosity ntau ntxiv thiab ua rau "txiv kab ntxwv tev" lossis "pinhole" defects thaum lub sijhawm txheej; qhov ceev qis dua yuav qhia tau tias cov catalyst tsis txaus, tsis muab cov chaw teb txaus thiab txo cov roj teeb ua haujlwm zoo.

Cov Kev Txwv ntawm Kev Tswj Xyuas Qhov Ceev ntawm Cov Slurry Ib Txwm Muaj

Kev sib tov cov tshuaj catalyst slurry ib txwm siv kev ntsuas tes thiab kev sim offline hauv thawj zaug. Txoj hauv kev no qeeb dua cov txheej txheem tiag tiag heev - kev tau txais cov txiaj ntsig ntawm kev sim los ntawm kev kuaj feem ntau siv sijhawm 15-30 feeb, thaum lub sijhawm ntawd cov slurry yuav nkag mus rau hauv cov txheej txheem tom ntej, ua rau muaj kev pov tseg ntau heev.

Kev ua haujlwm tes nyuaj rau nrhiav pom cov khoom me me uas sib sau ua ke hauv nanoscale catalyst. Tsis tas li ntawd, cov yam xws li kev hloov pauv kub thiab kev ua kom cov kuab tshuaj yaj ua rau muaj kev hloov pauv ntawm cov dej ntws hauv cov slurries, uas cov txheej txheem ib txwm tsis tuaj yeem them rau lub sijhawm tiag tiag, ua rau muaj kev pheej hmoo ntawm kev tsis ruaj khov ntawm cov khoom zoo.

Txoj Cai Ua Haujlwm thiab Cov Kev Zoo ntawm Kev Siv Tshuab

Txhawm rau daws cov teeb meem no, cov kws ua haujlwm Lonnmeter tau tsim cov ntsuas qhov ceev hauv kab raws li lub hauv paus ntsiab lus ntawm Coriolis, uas ntsuas qhov zaus ntawm kev co ntawm cov kua dej kom tau txais cov ntaub ntawv qhov ceev tiag tiag nrog qhov tseeb txog li ± 0.001 g / cm³. Hauv kev sib tov slurry ntawm cov roj hydrogen, cov khoom siv saib xyuas qhov tseeb no tuaj yeem ntsia tau ntawm qhov tawm ntawm cov thoob dej sib tov lossis cov kav dej ncig kom txuas ntxiv sau cov ntaub ntawv qhov ceev thiab kub, nrog rau cov txheej txheem them nyiaj uas tshem tawm qhov cuam tshuam ntawm qhov kub thiab txias rau qhov ceev.

Dhau ntawm Coriolis density meters, Lonnmeter kuj tau tsim lwm cov inline density meters xws li tuning fork density meters thiab ultrasonic density meters los muab cov sensors ntse saib xyuas density rau ntau yam kev ua haujlwm. Thaum pom tias cathode slurry density tshaj qhov nqi lub hom phiaj, lub kaw lus yuav xam qhov sib txawv thiab ntxiv cov tshuaj yaj kom tsim nyog los ntawm lub twj ntsuas; yog tias qhov ceev tsawg dhau, cov kua catalyst ua ntej dispersed ntxiv. Qhov kev tswj hwm dynamic loop no tsis yog tsuas yog kho cov mis deviations xwb tab sis kuj kwv yees cov teeb meem uas yuav tshwm sim los ntawm kev tshuaj xyuas cov ntaub ntawv keeb kwm. Thaum qhov ceev hloov pauv ntau dua qhov txwv, lub kaw lus yuav ua rau muaj kev ceeb toom kom ceeb toom txog kev sib cais tsis sib xws lossis kev sib cais theem, zam kev raug mob zoo ntxiv.