Crystallization ntawm urea tsuag phom nozzles feem ntau yog tshwm sim los ntawm qhov tsis tiav deposition thiab evaporation ntawm urea tov ntawm lub nozzle. Cov hauv qab no yog qee qhov ua rau crystallization thiab lawv cov kev kho mob sib xws:
1. Ntau dhau urea kua concentration
Thaum cov concentration ntawm urea tov yog siab, nws yog yooj yim rau crystallize ntawm lub nozzle. Txoj kev kho mob yog kom tsim nyog txo qhov concentration ntawm urea tov thaum xyuas kom meej tias nws tsis cuam tshuam rau denitrification efficiency. Qhov no tuaj yeem ua tiav los ntawm kev kho qhov sib piv ntawm cov tshuaj urea thiab tus nqi ntws ntawm rab phom tsuag.
2. Tsis tshua muaj nozzle kub
Yog hais tias qhov kub ntawm lub nozzle qis dua qhov crystallization point ntawm urea tov, urea tov yog ib qho yooj yim rau crystallize ntawm lub nozzle. Qhov teeb meem no tuaj yeem daws tau los ntawm kev ua kom cov rwb thaiv tsev ntsuas ntawm lub nozzle los yog nce qhov kev txhaj tshuaj kub ntawm cov tshuaj urea.
3. Tsis tsim nyog nozzle tsim los yog installation
Kev tsim cov nozzle tsis tsim nyog lossis kev teeb tsa tsis raug tuaj yeem ua rau cov tshuaj urea sib sau ua ke ntawm lub nozzle, yog li txhawb kev tsim cov muaju. Xyuas thiab optimizing tus tsim ntawm lub nozzle thiab xyuas kom meej tias lub nozzle raug ntsia tau zoo tuaj yeem txo qhov kev pheej hmoo ntawm crystallization.
4. Urea daws teeb meem zoo
Kev siv cov urea tsis zoo los yog ntau dhau impurities nyob rau hauv cov tshuaj urea yuav ua rau kom muaj peev xwm ntawm crystallization. Nws yuav tsum tau xyuas kom meej tias cov tshuaj urea uas ua tau raws li cov qauv siv, thiab cov urea lim yuav tsum tau hloov tsis tu ncua kom cov urea tov huv si.
5. Kev ua txhaum ntawm kev txhaj tshuaj urea
Yog tias muaj qhov ua txhaum ntawm kev txhaj tshuaj urea, xws li cov atomization tsis zoo, cov tshuaj urea yuav tsis raug evaporated, ua rau muaj kev pheej hmoo ntawm crystallization. Kev txhaj tshuaj urea yuav tsum tau kuaj xyuas thiab tswj xyuas tsis tu ncua kom ntseeg tau tias nws ua haujlwm li qub.
6. Tsawg qhov kub thiab txias
Urea tov yog feem ntau yuav crystallize nyob rau hauv ib qho chaw uas tsis muaj kub. Qhov ua tau ntawm crystallization tuaj yeem raug txo los ntawm kev nce qhov kub thiab txias los yog siv cov tshuaj preheated urea.
7. Kev txhaj tshuaj urea tsis raug
Yog hais tias lub tswv yim txhaj tshuaj urea tsis haum rau cov kev khiav hauj lwm tam sim no, nws yuav ua rau ntau dhau ntawm urea ntawm lub nozzle, txhawb kev crystallization. Lub tswv yim txhaj tshuaj urea yuav tsum tau hloov kho raws li kev ua haujlwm ntawm lub cav.
Thaum cuam tshuam nrog crystallization ntawm urea spray rab phom nozzle, cov ntsiab lus saum toj no yuav tsum tau txiav txim siab, thiab kev tiv thaiv thiab kev tu kom zoo yuav tsum tau ua. Kev saib xyuas tsis tu ncua thiab kev tshuaj xyuas ntawm urea txhaj tshuaj, nrog rau kev siv cov tshuaj urea zoo, yog tus yuam sij rau txo cov teeb meem crystallization. Thaum muaj xwm txheej ceev, txoj hauv kev xws li dej kub immersion lossis ultrasonic tu yuav siv tau los tshem tawm cov muaju ntawm lub nozzle.
