Boiler nitrogen oxide gurɓataccen tushen atomatik sa ido tsarinAmfani da liquid ammonia hanyar shirya denitration reducer, zaɓi catalytic rage hanyar (SCR) a matsayin denitration na'urar da kuma goyon bayan tsarin gyara. sarrafa NOx matakan rage daga 500 mg / Nm3 zuwa 75mg / Nm3 (zane SCR inganci 85%),
Denitrification na'urar aiki ne mafi girma kamar haka:
NOX cirewa kudi ba kasa da 85% na denitration na'urar a lokacin aikin kimantawa gwaji (ƙarin layi catalyst ba shiga), tabbatar da fitarwa kasa da 75 mg / Nm3, ammonia tserewa kudi kasa da 2.5ppm, SO2 / SO3 canji kudi kasa da 1%;
a) daji 50% THA ~ 100% BMCR kaya;
b) NOX abun ciki na shigar da hayaki ba ya fi (500) mg / Nm3;
c) The ƙura abun ciki na fitar da hayaki gas shiga denitration na'urar kasa da (42) g / Nm3;
d) NOX abun ciki na fitarwar hayaki kasa da (75) mg / Nm3;
e) NH3 / NOx molar rabo ba ya wuce darajar tabbatarwa (0.86).
Defrosting inganci ma'anar:
denitrification = C1-C2 × 100%
C1
Formula: C1 - NOX abun ciki (mg / Nm3) a cikin hayaki gas a defrosting shigarwa lokacin da defrosting tsarin aiki.
C2 - NOX abun ciki (mg / Nm3) a cikin hayaki gas a defrosting fitarwa lokacin da defrosting tsarin aiki.
Ammonia gudu kudi yana nufin matattarar ammonia fitarwa a denitration na'urar.

2. Binciken tsarin (NH3 / NOx / O2)

2.1 Boiler nitrogen oxide gurɓataccen tushen atomatik sa ido tsarinNazarin
A gaban karshen sa ido bincike na dukan sa'a tsarin shigar a gurɓataccen tushen sa ido maki matsayi, sa ido siginar ta hanyar mai watsawa canzawa sarrafawa bayan ya zama dijital siginar, da misali RS485 serial dubawa watsa zuwa gida sa ido kwamfuta, gida sa ido kwamfuta da kuma bincike tsarin kabinet sanya a cikin musamman sa ido dakin, a kan sa ido kwamfuta ta hanyar goyon baya da shi online muhalli sa ido cibiyar sadarwa tsarin don kula da muhalli sigogi kamar gurɓataccen tushen nitrogen oxide (NOX), NH3, zafi, oxygen abun ciki da matsin lamba, don cimma muhalli sigogi sarrafa kansa bayanai rahoto sarrafawa da kuma kididdigar aiki, kuma za a iya watsa ido bayanai zuwa muhalli sa ido cibiyar tashar ko wasu m' Hakanan za a iya amfani da tashar jiragen ruwa mai kwaikwayo, ko bushewar lamba don canja wurin sigogi ko sarrafa na'urar.
Tsarin yana amfani da cikakken hanyar fitarwa don tattara samfurin gas, bayan tacewa don canja wurin gas ta hanyar layin bututun zafi, samfurin gas ya kammala sarrafawa kafin na'urar bincike, yana sa ya zama bushe yanayin gas da za a auna don shiga na'urar bincike don ganowa. Binciken gas yana amfani da madadin samfurin samfurin da kuma ka'idar infrared mara rarrabuwa don gano samfurin gas. An shigar da sakamakon ma'auni zuwa na'urorin tattara bayanai ta hanyar tashar jiragen ruwa ta dijital. Data management software sarrafa asali data, samar da daban-daban nau'ikan rahotanni da kuma iya yin nesa canja wuri.
Bugu da ƙari, don tabbatar da tsarin yana aiki daidai, an tsara ayyukan bincike da ƙararrawa da yawa. Za a iya fitar da siginar ƙararrawa, alamun lamba ko aika siginar sarrafawa kamar dakatar da samfurin, fara busa da sauransu. Tsarin yana da ayyukan bushewa, daidaitawa, za a iya shirya shi ta atomatik ko aikata shi da hannu a kowane lokaci. Calibration amfani da misali karfe kwalliya gas, za a iya daidaita kai tsaye bincike sassa, ko kuma gaba daya daidaitawa ta hanyar bincike.
Jerin ya yi amfani da wani m uku sassa dehydration tsarin. Tsarin ya haɗa da mai rarraba ruwa da masu sanyaya na lantarki biyu. Tsarin dehydration * yana tabbatar da rage yawan asarar kamar NOx da ruwa ya dauke daga ruwa, don haka tabbatar da daidaito na bayanan sa ido.

2.2 Nazarin ma'auni na nitrogen oxide (NOX)
Kulawa da NOx daban-daban kafin da bayan denitration tsarin, zai ba mu damar fahimtar ingancin denitration tsarin. Ka'idodin ma'auni na nitrogen oxide (NOX) yawanci sune: hanyar samar da sinadarai (CLD), hanyar sha infrared mara rarrabuwa (NDIR), hanyar sha ultraviolet (UV). Wannan tsarin ya yi amfani da musamman madaidaicin kwarara modulation Chemical Luminescence (CLD), a ka'ida kawar da sifili maki yawo, ƙari ga samfurin gas, sifili madaidaicin shiga cikin wannan tafkin kayan aiki, ƙarin mataki daban-daban na kayan aiki kanta kawo kuskure. NOX kula da na'urar ta yi amfani da low zafin jiki NOX mai juyawa don juya NO2 zuwa NO a karkashin wani musamman carbon family catalyst aiki. The mai juyawa aiki zafin jiki ne kimanin 190 ℃, a lokaci guda tabbatar da NO2 gaba daya canza zuwa NO, karfin da rayuwa da yawa inganta, amfani da semiconductor firikwensin, iya auna 0-10ppm kananan abun ciki na bangarori, fiye da al'ada firikwensin aiki rayuwa mafi tsawo, m, aminci kara inganta.
A ƙarƙashin daidaitaccen sarrafawa na solenoid bawul, samfurin gas da kuma dangantaka gas (da za a auna abubuwa matattarar sifili ko wani sanannun lambar gas) a daidaitacce kwararar da aka juya a cikin gwajin tafkin. Infrared hasken da aka fitar daga tushen infrared ya gano da mai ganowa bayan ya wuce tafkin ganowa. Lokacin da tsari a cikin tafkin ganowa ya shiga samfurin gas da gas mai kwatance, shan makamashi na infrared zai sami canje-canje, wanda ke haifar da ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin.

2.3 Ma'anar sa ido na NH3 da kuma SCR Ammonia gudu ma'aunin bincike
Tun da ake buƙatar buga NH3 a lokacin defrosting, ana buƙatar sa ido kan NH3 da ya rage bayan defrosting don tabbatar da cewa ƙarshen fitar da fitarwa yana cikin ƙa'idodin fitarwa. Bayanan tsarin sa ido na kan layi ba kawai za a iya ba da rahoto ga sassan da suka dace ba, har ma za a iya kai tsaye a matsayin sigogin sarrafa tsari a cikin tsarin denitration, don hana yawan NH3 da SO3 halayen samar da NH4HSO3, ta hanyar ingantaccen amfani da NH3 don rage farashin aikin denitration.
Saboda NH3 yana da sauƙin narkewa a cikin ruwa, wanda ke haifar da ma'auni mara daidaito, matakan maganganunsa shine auna NH3 ta hanyar rage amsawar bincike, zafin jiki na bincike yana da babban zafin jiki, wanda zai iya hana asarar NH3, saboda binciken ya shiga cikin murfin hayaki, yana da sauƙin kiyaye zafin jiki da ake buƙata don amsawa. Wannan aikin taba gas denitration shigarwa da fitarwa nitrogen oxide sa ido online bincike dauki kai tsaye fitarwa hanyar, matsalar shi ne a taba gas high zafi, high ƙura, high danshi da kuma high lalata da aka auna, haifar da samfurin bincike sauki toshe, tsarin sauki lalata. Saboda haka, samfurin da samfurin gas sarrafawa tsarin dauki multi-mataki tacewa kawar da ƙura, biyu mataki dehumidification, dauki aerosol tacewa kawar da fog drop da sauran matakai, inganta tsarin tacewa da ƙura, dehumidification ikon, tabbatar da tsarin abin dogara aiki.

3. Daily kulawa dubawa abubuwa
Don tabbatar da tsarin aiki daidai, dole ne a yi a kai a kai dubawa da kuma kulawa

4. Common matsala dacewa
Saboda mummunan yanayin aiki na tsarin bincike, tsarin zai bayyana wasu gazawar, kawar da gazawar da sauri a lokaci, ba kawai zai iya tabbatar da amintaccen aikin babban tsarin ba, har ma zai iya tsawaita rayuwar aikin mai bincike.
4.1 Low zirga-zirga-zirga ƙararrawa
Abubuwan da suka faru: Sample gas ko gas calibration ba zai iya isa al'ada kwarara.
daidai:
① daidaita allura bawul (NV-1, NV-2);
② tabbatar da samfurin famfo aiki (P-1), maye gurbin famfo fim ko famfo;
② Bincika ko biyu tace toshewa (F-1 / F-2), maye gurbin tace takarda;
② Bincika P-2 aiki yanayin, maye gurbin famfo fim;
② Tabbatar da ko Air tace (FA-1) toshe, maye gurbin iska tace;
② Bincika matsin lamba da kuma aiki yanayin da aka saita na matsin lamba mai daidaitawa (R-1)
Saita matsin lamba: -0.01MPa; sake saita matsin lamba ko maye gurbin matsin lamba regulators;

4.2 Sample zafin jiki m
Abubuwan da suka faru: 'Sampling zazzabi rashin kyau' ya zama ja a kan aiki panel
daidai:
① Bincika ko mai sanyaya na lantarki (C-1, C-2) yana aiki yadda ya kamata, don Allah a maye gurbinsa idan ba daidai ba ne;
② Tabbatar da cewa Ozone breaker dumama (DO-1) aiki, don Allah a maye gurbin idan ba daidai ba.

4.3NH3 auna bayanai mara kyau
Abubuwan da suka faru: NH3 ma'auni darajar canji ko gwajin darajar da ba daidai ba;
daidai:
① daidaita NOx gas hanyoyin da NOx-NH3 gas hanyoyin bututun lambar, tabbatar da biyu bututun gwajin darajar lokacin da aka auna wannan gas *;
② gyara na analyzer;
② maye gurbin bincike NH3 canza catalyst;
② Sauya NOx gas hanyar da NOx-NH3 gas hanyar canzawa catalyst bututun (COM-1, COM-2).

4.4 Ba zai iya daidaitawa ba
Abubuwan da suka faru: Zero gas ko range gas gyara coefficient wuce saiti kewayon, aiki panel 'gyara ba zai iya' zama ja
daidai:
① tabbatar da ko madaidaicin gas kwarara ne na al'ada, idan kwarara ta kasance ƙasa, kawar da matsala kamar yadda aka bayyana a sama;
Tabbatar da gas silinda matsin lamba, idan gas silinda matsin lamba ne too low ko babu matsin lamba, don Allah maye gurbin gas silinda
② Bincika ko daidaitawa gas saiti matattarar darajar da gas silinda matattarar darajar *;
② Tabbatar da aikin solenoid bawul (SV-1,2,3,6): Idan solenoid bawul dakatar da aiki, 'solenoid bawul dakatar' a kan aiki panel zai zama ja, maye gurbin solenoid bawul.

5 ƙarshen kalmomin
Wannan tsarin yana aiki da aminci tun shekara guda, ta hanyar daidaitaccen sa ido kan abubuwan da ke cikin hayaki (NH3 / NOx / O2), yana tabbatar da cancantar fitar da nitrogen oxide (NOX) na boiler, inganta yanayin yanayi na gida, amfanin muhalli da zamantakewa zai zama mai mahimmanci na dogon lokaci.