Tsis Siv Neeg Dej Kho Khoom Siv Edi Ultrapure Dej System
Kev thov dej Ultrapure - Urea Area
Daim ntawv thov dej ultrapure hauv tsheb urea yog tsuas yog ua kuab tshuaj rau urea.Lub hom phiaj tseem ceeb ntawm automotive urea yog raws li tus neeg sawv cev txo qis hauv cov pa roj cua kho kom txo cov nitrogen oxide (NOx) emissions hauv cov pa roj.Urea tov feem ntau hu ua urea hauv dej tov (AUS32) thiab feem ntau muaj 32.5% urea thiab 67.5% dej.
Lub luag haujlwm ntawm dej ultrapure hauv cov tshuaj no yog los xyuas kom meej lub solubility thiab stability ntawm urea.Txij li thaum cov tshuaj urea yuav tsum tau txhaj rau hauv cov pa tso pa tawm thiab hnov mob nrog nitrogen oxides hauv cov pa tso pa, solubility thiab stability ntawm urea yog qhov tseem ceeb rau kev ua haujlwm thiab kev ua haujlwm ntawm lub cev.Ultrapure dej tuaj yeem ua kom ntseeg tau tias urea tau yaj tag nrho hauv cov tshuaj thiab khaws cia hauv lub xeev ruaj khov, yog li ua kom ntseeg tau tias cov pa hluav taws xob kho tuaj yeem ua haujlwm tau zoo thiab ua tiav qhov kev cia siab emission txo cov nyhuv.
Tsis tas li ntawd, dej ultrapure kuj tseem tuaj yeem pab txo qis cov deposition thiab crystallization ntawm urea tov nyob rau hauv lub system, uas yuav pab kom lub nozzles huv si thiab du thiab tiv thaiv lub kaw lus thiab tsis ua hauj lwm.Yog li ntawd, kev siv dej ultrapure hauv automotive urea yog qhov tseem ceeb heev rau kev tswj xyuas qhov ua tau zoo thiab kev ruaj ntseg mus sij hawm ntev ntawm kev kho cov pa roj.
Txhawm rau kom ntseeg tau tias kev ua haujlwm thiab kev ua tau zoo ntawm automotive urea, nws tseem ceeb heev kom ua tau raws li cov qauv hauv qab no thiab cov kev xav tau:
1. Tsis muaj cov khoom tshem tawm thiab precipitates nyob rau hauv tsos: urea tov yuav tsum meej thiab pob tshab yam tsis muaj cov khoom tshem tawm thiab precipitates.Tej yam uas pom tsis sib xws tej zaum yuav muaj kev cuam tshuam tsis zoo rau cov pa tawm tom qab kev kho mob.
2. Cov ntsiab lus urea tsis tsawg dua 32.5%: Cov ntsiab lus urea rau kev siv tsheb yuav tsum tsis pub tsawg dua 32.5% kom ntseeg tau tias cov tshuaj urea ua tau zoo.Cov ntsiab lus urea tsawg tuaj yeem ua rau tsis ua raws li lub tsheb tso pa tawm.
3. Tsis txhob siv cov tshuaj crystallized urea: Automotive urea yuav tsum nyob hauv cov kua dej thiab yuav tsum tsis txhob tshwm sim crystallized.Lub xub ntiag ntawm crystallization yuav qhia tau tias muaj impurities los yog tsis ua raws li cov qauv zoo.
4. Tsis txhob siv cov tshuaj urea nrog cov tshuaj ntxiv: Urea yuav tsum ua rau NOx nyob rau hauv cov pa tawm tom qab kev kho mob, yog li yuav tsum tsis txhob muaj lwm yam tshuaj ntxiv kom tsis txhob muaj kev cuam tshuam cov tshuaj tiv thaiv thiab ua rau lub tsheb tsis zoo.
5. Cov tshuaj urea yuav tsum tau muab cia rau hauv qhov chaw qhuav thiab txias: qhov chaw cia rau urea tov yuav tsum qhuav, txias, thiab tiv thaiv los ntawm tshav ntuj ncaj qha thiab kub kub kom tsis txhob deterioration ntawm cov tshuaj urea zoo.
Ua raws li cov qauv thiab cov kev cai no tuaj yeem ua kom muaj txiaj ntsig zoo thiab ua haujlwm zoo ntawm automotive urea, uas pab tiv thaiv lub tsheb cov pa tawm tom qab kev kho mob thiab tswj lub tsheb emissions.
Ultrapure dej feem ntau ua raws li cov qauv hauv qab no thiab cov kev xav tau:
Conductivity: Cov conductivity feem ntau yuav tsum tsawg dua 0.1 microsiemens / cm.
TOC (Tag nrho cov Organic Carbon): TOC theem qis heev yuav tsum tau, feem ntau nyob rau hauv cov khoom ib billion (ppb) ntau.
Kev tshem tawm ion: Kev tshem tawm zoo ntawm ions xws li yaj oxides, silicates, sulfates, thiab lwm yam.
Microbial Control: Cov kab mob yuav tsum tau muab tshem tawm kom huv si kom huv si.
Cov qauv no feem ntau yog siv nyob rau hauv thim rov qab osmosis ultrapure dej tshuab los xyuas kom meej tias cov dej zoo ua tau raws li cov kev cai ntawm cov dej ultrapure, uas tsim nyog rau thaj chaw xws li kev tshawb fawb hauv chaw soj nstuam, kev lag luam tshuaj, thiab kev tsim hluav taws xob.
