Diesel tso pa kho kua dej, feem ntau hu ua diesel tso tawm tom qab kev kho cov kua los yog urea tov, yog cov kua siv los txo nitrogen oxide (NOx) emissions los ntawm diesel cav tso. Qhov feem ntau Diesel Exhaust kho Fluid yog urea aqueous tov siv hauv Selective Catalytic Reduction (SCR) systems, feem ntau hu ua AdBlue (hauv Europe) lossis DEF (Diesel Exhaust Fluid, hauv North America).
|
Cia Kub |
Tsawg dua los yog sib npaug li 10'C |
<25°C |
<30°C |
Tsawg dua lossis sib npaug li 35 degree |
|
Hnub Kawg |
36 muaj |
18 hli |
12 hli |
6 hli |
Lub ntsiab Cheebtsam ntawm diesel cav tso pa roj kho kua
Urea: Cov xim tsis muaj xim, tsis muaj ntxhiab tsw nrog cov mis CO (NH2)2.
Deionized dej: High purity dej uas tshem tawm cov zaub mov thiab impurities.
Txoj Cai Ua Haujlwm
Txhaj tshuaj system: diesel tso pa roj kho kua yog txhaj rau hauv cov yeeb nkab tso los ntawm kev txhaj tshuaj.
Decomposition: Nyob rau hauv kub kub, urea decomposes rau ammonia (NH3) thiab carbon dioxide (CO2).
Txo cov tshuaj tiv thaiv: Ammonia reacts nrog nitrogen oxides (NOx) nyob rau hauv cov pa tso pa kom tsim muaj teeb meem nitrogen (N2thiab dej (H2O), yog li txo NOx emissions.
Main Advantage
Kev tiv thaiv ib puag ncig: Qhov tseem ceeb txo qis nitrogen oxide emissions, pab txo cov pa phem thiab tsim cov kua qaub.
Kev tswj hwm kev ua raws cai: Ua tau raws li cov qauv emission nruj (xws li Euro VI hauv Tebchaws Europe thiab EPA 2010 hauv North America).
Txhim kho roj efficiency: SCR tshuab tuaj yeem ua kom zoo dua qhov kev sib txuas ntawm cov tshuab hluav taws xob thiab txo cov roj noj.
Teeb meem xav tau kev saib xyuas
Cia tej yam kev mob: Urea daws yog kub rhiab heev thiab yuav tsum tau muab cia rau hauv ib tug txias, qhuav qhov chaw deb ntawm ncaj qha tshav ntuj thiab huab cua kub (siab tshaj 30 degree los yog qis dua -11 degree).
purity yuav tsum tau: Siv lub siab purity urea tov kom tsis txhob muaj kev puas tsuaj rau SCR system.
Kev tshuaj xyuas tsis tu ncua: Cov tshuaj urea raug kuaj xyuas thiab rov ua kom zoo dua qub kom ntseeg tau tias kev ua haujlwm ib txwm muaj ntawm SCR system.
Daim ntawv thov
Urea Liquid yog siv dav hauv ntau daim ntawv thov, suav nrog:
Lub Tsheb Ua Lag Luam: Tsheb thauj mus los, tsheb npav, thiab lwm yam tsheb hnyav uas nruab nrog lub cav diesel.
Agricultural Machinery: Tsheb laij teb thiab lwm yam khoom siv ua liaj ua teb.
Cov cuab yeej siv: tsheb nrau av, excavators, thiab lwm yam tshuab siv hauv kev tsim kho.
Marine Engines: Nkoj thiab nkoj nrog diesel propulsion systems.
Diesel tshem tawm cov kua dej yog siv dav hauv cov tshuab hluav taws xob niaj hnub los pab ua kom huv thiab zoo dua ib puag ncig emission qauv.
Cim npe nrov: Def urea kua, Tuam Tshoj def urea kua lwm tus neeg, hoobkas
