Iimitha zoxinaniso lwe-inline zingumdlalo otshintshayo we-denitration kwizityalo zamandla ngexesha leenkqubo zoshishino. Ezi geyiji zihlakaniphile zivumela abaqhubi ukuba bajonge ukuxinana ngexesha lokwenyani, kunye nezixhobo ezibalulekileyo ezijongene neenkqubo zemichiza ezinzima. Kubalulekile ukuba abasebenzi bajongane nemiceli mngeni yokusebenza njengoko beqwalasela ngakumbi nangakumbi imithetho engqongqo yokusingqongileyo. Jonga kwiimeko ezineenkcukacha apho basebenza khona ukusombulula iingxaki ezintsonkothileyo zemizi-mveliso kunye nokuphelisa umsebenzi onzima kodwa ophindaphindwayo.
Iingxaki zobuGcisa ezinoBuqhetseba kwiDenitration
Uhlengahlengiso ekukhutshweni kwenitrogen oxide (NOx) ayingomsebenzi olula. I-nitrogen oxide ayikwazanga ukupheliswa ngokupheleleyo, kungakhathaliseki ukuba kwizityalo ezibaswa ngamalahle, ezitshiswe ngeoyile okanye nakwizityalo ezibaswa ngamalahle. Ukulawulwa kokukhutshwa ngokuchanekileyo kuhambelana nokuNcitshiswa kweCatalytic eKhethekileyo (SCR) okanye i-Selective Non-Catalytic Reduction (SNCR), apho i-reagents yongezwa kwi-flue gas stream ukuze iphendule ngakumbi. Nangona kunjalo, ukujongwa ngokuchanekileyo kwedosi ngexesha lokwenyani kujongana nemiceli mngeni emininzi ukusuka kwiimeko zokusebenza ezinzima. Ukungachaneki kumlinganiso kunokubangela ukutyibilika kwe-ammonia kunye nenkunkuma ye-reagents.
Lonnmeter uyilo kwaye uvelise i imitha yoxinano olungaphakathiukwenzela umlinganiselo woxinaniso oluqhubekayo ukuthintela iimpazamo zomntu kwisampulu eqhelekileyo. Iisampulu yabantu ixhomekeke ngakumbi kuhlolo lwamaxesha athile nakuqikelelo olungathanga ngqo. Enjaloimitha yoxinaniso lwe-intanethiiyakwazi ukubona ukuguquguquka okuncinci ekujongweni koxinaniso ukuncedisa ulungelelwaniso oluchanekileyo, ukugcina zonke iinkqubo ze-denitration zizinzile kwaye zisebenza kakuhle.
Ukongeza, ikwasebenza ekuboneleleni ngeeparamitha ezibonisa umgangatho wokuxuba, ukungaguquguquki kwe-reagent kunye nesantya sokuhamba. Ngokomzekelo, ukungahambelani komjelo we-urea ekunyibilikeni emanzini kuphazamisa i-chemistry yokusabela. Ngokubeka iliso kwi-slurry ngokuthe ngqo kumbhobho, iimitha ze-inline density imitha ziqinisekisa ukuba ugxininiso olufunwayo lugcinwa ukusuka kwindawo yokugcina ukuya kwisitofu, ukunciphisa umngcipheko wokungasebenzi kakuhle kwenkqubo okanye ukungathotyelwa kokusingqongileyo.
Iimitha zoXinano lwezoShishino olucetyiswayo
Ukuphucula i-Automation kwi-Denitration kunye nokuthembeka kweNkqubo
Zimnkile iintsuku apho abasebenzi bezityalo kwafuneka baxhomekeke kungenelelo lwezandla ukuze balungise inaliti ye-reagent. Iimitha zoxinaniso lwangoku oluphakathi zidibanisa ngokungenamthungo kwiiNkqubo zoLawulo oluSasazo oluPhezulu (DCS) okanye iziLawuli eziQinisekayo eziLungisayo (PLC), ezivumela ulwahlulo olupheleleyo lwempendulo. Xa ubuninzi bezifundo buphambuka kuluhlu olusetwe kwangaphambili, inkqubo ihlengahlengisa ngokuzenzekelayo isantya sokuhamba kwe-reagent okanye ihlambulule isisombululo njengoko kufuneka. Oku kuzenzekelayo akunciphisi kuphela umthwalo kubasebenzisi kodwa kwakhona kuphelisa ukulibaziseka okuhambelana nokwenza izigqibo zabantu.
Kubalulekile ukulinganisa imijelo yeekhemikhali kwi-desulfurization edibeneyo kunye nokulungiswa kwe-denitration, apho i-lime slurry kunye nezisombululo ze-ammonia zisetyenziswa ngaxeshanye. Ukujongwa kokuxinana kwezo ziselo zimbini yimfuneko yokusebenza okuqhelekileyo kwe-desulfurization kunye ne-denitration. Lo mgangatho wolungelelwaniso unceda ukuthintela imiba eqhelekileyo efana nokudilizwa kwimibhobho yelimestone okanye ukusetyenziswa ngokugqithisileyo kwe-ammonia, zombini ezinokuthi zibe nesiphumo sokuvalwa kweendleko okanye ukulungiswa.
Ngaphandle koko, ezo mitha zokuxinana kwe-inline ezihlala zihleli ziyakwazi ukumelana neemeko ezirhabaxa kwiplanti yamandla. Kuyilo olukhethekileyo lokumelana namaqondo obushushu aphezulu kunye noxinzelelo, alungele ukuphatha imichiza eyonakalisayo kwiimeko ezicela umngeni njengenkqubo yokukhupha irhasi yeflue.
Ukusetyenziswa kwe-Inline Density Meters kwi-Power-Fired Power Plant
Ngokubanzi, iiplanti zombane ezibaswa ngamalahle ziyazikhathaza ngokusilela kumlinganiselo woxinaniso kunye neengxaki ezinxulumene nobugcisa kuthotho, kubandakanywa kodwa kungaphelelanga ekuvaleni kwemibhobho, ukutyibilika kwe-ammonia kunye nokugcinwa okunokwenzeka. Imitha yoxinaniso lwefolokhwe engaphakathi sisixhobo esikrelekrele esifanelekileyo kuzo zombini umgca wenaliti ye-ammonia kunye ne-limestone slurry system.
Iziphumo zaba yinguqu. Ujongo lwexesha lokwenene loxinaniso luvumele isityalo ukuba silungise idosi ye-reagent ngokuchaneka okungazange kubonwe ngaphambili. Amanqanaba e-ammonia slip ahla ngaphezu kwe-90%, ngelixa i-NOx yokunciphisa ukusebenza kakuhle idlule i-92%. I-limestone slurry, eyayibangele ngaphambili ukulinganisa kunye nokuvalwa, yagcinwa ekuxininiseni okufanelekileyo, ukuphelisa ukugcinwa okungacwangciswanga kunye nokunciphisa ixesha lokunciphisa ngama-20%. Olu phuculo aluzange luzise iplanti ekuthobeleni imigangatho yokusingqongileyo kuphela kodwa lunciphise iindleko zokusebenza nge-15%.
Kutheni i-Inline Density Meters iyimfuneko
Yintoni ebeka iimitha zoxinaniso olungaphakathi ngaphandle kwezinye izisombululo zokubeka iliso kukuguquguquka kwazo kunye nokuguquguquka. Abapheleli ekuchazeni; izicelo zabo zandisa kuyo nayiphi na inkqubo yoshishino efuna ulawulo oluchanekileyo lolwelo. Kwimeko yezixhobo zombane, oku kuquka iinkqubo zokuchithwa kwesulfurization, ukucocwa kwamanzi amdaka, kunye nemisebenzi yokudibanisa amafutha. Ukukwazi kwabo ukubonelela ngexesha lokwenyani, ngokuchanekileyo, kunye nedatha esebenzayo kubenza ilitye lembombo lenkqubo yangoku.
Ngokuphumeza ezi zixhobo, izityalo zamandla zinokufikelela kwinqanaba lolawulo lwenkqubo olwalungafumaneki ngaphambili. Iinzuzo zidlulela ngaphaya kokuthotyelwa kunye nokusebenza kakuhle; zikwabandakanya ubomi obude bezixhobo eziphuculweyo, iindleko zokuyilungisa ezicuthiweyo, kunye nokuzinza okuphuculweyo. Kubaqhubi abaxabisa ukusebenza kunye noxanduva lokusingqongileyo, iimitha ze-inline density ayilona nje utyalo-mali-ziyimfuneko.
Ukuqukumbela
Ukwamkelwa kwemitha ye-inline density systems kwiinkqubo ze-denitration ngumzekelo wendlela iteknoloji ephucukileyo enokuguqula ngayo iinkqubo zemizi-mveliso. Ngokujongana nemiceli mngeni efana nokungaguquguquki kwe-reagent, ukutyibilika kwe-ammonia, kunye nenkqubo ezenzekelayo, ezi zixhobo zenza ukuba izityalo zamandla zisebenze ngokufanelekileyo, ngokuzinzileyo, nangenzuzo. Irekhodi yabo eqinisekisiweyo kwizicelo zehlabathi zangempela igxininisa ixabiso labo njengesixhobo esibalulekileyo ekulweni nokukhutshwa kwe-NOx. Ukuba ujonge ukuphakamisa imisebenzi yakho ye-denitration, akukho xesha lingcono lokuphonononga ukubanakho komlinganiselo woxinaniso olungaphakathi.
Ixesha lokuposa: Dec-27-2024
