Kev ceev faj rau SCR tu thiab siv urea

Kev kho ntawm SCR system

Qhov kev xaiv catalytic txo qis (SCR) tom qab kev kho mob hauv cov tsheb thauj khoom hnyav tuaj yeem muab faib ua ob hom: hluav taws xob tsav thiab pneumatically tsav. Lub tsheb lub tank urea, ua los ntawm cov khoom siv yas, yog siv rau hauv lub tshuab hluav taws xob, thaum lub tshuab hluav taws xob pneumatically siv lub tank aluminium alloy urea. Tam sim no, feem ntau ntawm SCR systems siv yog hluav taws xob, nrog rau cov pneumatically tsav SCR system tsis tshua muaj.

Nyob rau hauv cov ntaub ntawv ntawm lub tshuab hluav taws xob urea tank, tsis tas yuav tso tawm lub siab thaum rov ua cov tshuaj urea. Tsuas yog qhib lub hau urea tso cai rau kev sib ntxiv ntawm cov tshuaj. Txawm li cas los xij, rau lub tshuab pneumatically tsav urea tank, uas muaj cov cua siab, nws yog ib qho tseem ceeb uas yuav tsum tau tso pa tawm ua ntej refilling. Cov txheej txheem no yooj yim heev thiab. Txhawm rau tso lub siab, lub hau urea yuav tsum tau xoob ob peb zaug kom tso cua tawm. Thaum cov cua compressed tso tawm tag, lub hau tuaj yeem qhib tag nrho kom ntxiv cov urea.

Yuav kom txuag tau nyiaj, nws yog ib qho tsim nyog yuav tsum tau ua kom huv thiab tswj xyuas SCR system thiab siv lub tsheb urea txhim khu kev qha. Thaum ua txhua xyoo kev tu lub cav, qhib hauv qab ntawm lub tank urea los ntxuav nws thiab tso cov khoom tso rau hauv lub tank.

Yog tias koj pom cov pob zeb dawb ntawm lub qhov cua ntawm lub qhov cua los yog cov kua filling chaw nres nkoj, yaug nrog dej los yog so nrog cov ntaub ntub dej. Yog tias pom tias lub qhov cua valve tau txhaws, nws tuaj yeem ntxuav nrog dej lossis hloov. Tsis tas li ntawd, 2 xyoos mus rau 3 xyoos los hloov lub thawv lim, thiab qee zaus los xyuas cov plug-in thiab cov kav dej sib txuas.

Kev ceev faj rau refilling urea kua

Muaj ob txoj hauv kev ntxiv cov tshuaj urea: ib qho yog sau nrog urea muab tub lim, thiab lwm qhov yog ntxiv urea ncaj qha los ntawm lub thoob.

Thaum lub hau kaw ntawm lub thoob ntawm cov tshuaj urea tau qhib lawm, sim ua kom tiav tag nrho cov tshuaj urea ib zaug.

Vim tias cov raj siv urea siv yuav muaj cov kua urea seem, thiab nws yuav sai sai crystallize thiab khi rau lub raj phab ntsa, thaum siv dua, qhov crystallized urea yuav nkag mus rau hauv lub tank urea, ua rau SCR tom qab kho tsis ua haujlwm.

Nws tseem yog ib qho tseem ceeb kom tsis tu ncua ntxuav lub tank sab hauv ntawm lub urea, uas feem ntau ua rau cov impurity deposits thiab crystals, nrog rau sab nraud ntawm lub tank urea, tshwj xeeb tshaj yog nyob ib ncig ntawm lub tank lub hau, thiab tsis txhob cia cov spoils poob rau hauv lub tank. Thaum koj sau nws nrog urea.

Tom qab nres tsheb, tsis txhob cuam tshuam lub zog ntawm tag nrho lub tsheb tam sim ntawd, SCR kev ua haujlwm tom qab nres tsheb muaj cov txheej txheem tshuab, lub hom phiaj yog kom tshem tawm cov urea nyob rau hauv cov kav dej, kom tsis txhob muaj crystallization clogging, tag nrho cov txheej txheem tshuab yog nqa tawm tom qab lub tshuab. lub cav raug kaw, kav ntev li ntawm 30-120 vib nas this.

Yog li koj tseem yuav hnov ​​​​me ntsis rattle los ntawm SCR thaum koj nres lub tsheb, thiab yog tias tsis muaj suab me ntsis, koj yuav xav kom koj lub SCR tom qab kev kho mob. Yog li ntawd nws raug pom zoo kom txiav lub hwj chim rau tag nrho lub tsheb tsuas yog thaum lub tsheb hloov pauv tau raug muab tua rau ob feeb.