I-Denitrification Nozzle: Ukukhethwa kwe-alloy kanye Nomhlahlandlela Wokukhiqiza Wokusakaza 

Isifinyezo: Lo mhlahlandlela uhlanganisa ukukhethwa kwe-alloy, izinqubo zokutshala izimali, amaphutha, izimfuneko zemishini ye-CNC kanye nokuhlolwa kwemibhobho ye-denitrification yangokwezifiso esetshenziswa ezinhlelweni ze-SCR kanye ne-SNCR flue gas.

Imibhobho ye-Denitrification iyizici ezibalulekile zokuguga ngaphakathi kwe-SCR kanye nezinhlelo ze-SNCR flue flue denitration, ezichayeke kumazinga okushisa ama-cyclic, ukugqwala kwe-ammonia/urea kanye nokuguguleka komlotha.

Lo mhlahlandlela ugxile emibhobolweni yokukhishwa kwe-cast, ehlanganisa izimo zokusebenza ezijwayelekile, ukuqhathaniswa kwebanga le-alloy, ukuhamba komsebenzi wokutshala imali, ukuvimbela amaphutha kanye namanothi okuqedela we-CNC okusakazwa kwemibhobho yangokwezifiso.

Iyini i-Cast Denitrification Nozzle kanye Nezimo zayo Zesevisi

Umbhobho we-cast denitrification iyisakhi esinembayo esiklanyelwe ukujova i-urea noma i-ammonia reductant ngokufanayo emifudlaneni yegesi ewuketshezi ukuze ilashwe i-denitration.

Ngokungafani nemibhobho emshinini ngokuqondile esitokisini sebha eqinile, imibhobho ye-denitrification yabalingisi isekela amashaneli agelezayo angaphakathi ayinkimbinkimbi, izimbobo zokufutha eziningi kanye nezakhiwo ezihlanganisiwe zokukhweza okunzima noma okumba eqolo ukukhiqiza ngomshini wesitoko esiqinile.

Isimo sokusebenza semibhobho yegesi ekhishwayo sidala izindlela zokuwohloka ezihlanganisiwe ezifinyeza impilo yesevisi:

• Ukuchayeka okuqhubekayo noma okushintshashintshayo kwezinga lokushisa eliphezulu ngaphakathi kwebhoyili namapayipi;
• Ukugqwala kwamakhemikhali okuvela ku-ammonia, i-ammonium bisulfate ne-acidic flue gas byproducts;
• Ukuguguleka kwezinhlayiyana eziqinile okubangelwa umlotha wezimpukane othuthwa ngaphakathi kwegesi ephuma emanzini;
• Ukuhamba ngebhayisikili okushisayo okuphindaphindayo okwethula ingcindezi yokukhathala okushisayo ezigabeni ezinezindonga ezincane kanye nasezingosini zomlomo.

Lesi sihloko ngeke sijule ku-SCR noma ku-SNCR chemical reaction theory.

Zonke iziqondiso lapha zigxile ezintweni zokulingisa, ikhwalithi yokukhiqiza kanye nokuhlolwa kokulingisa umlomo wombhobho ngokwawo.

Ukukhetha Okubalulekile Kwengxubevange Yokusakaza Kwenozi Ye-Denitrification

Ukukhethwa kwezinto kuyisinqumo esinomthelela kakhulu empilweni yesevisi ye-denitrification nozzle.

Ukuze uthole isevisi ye-denitration, ukumelana nokuguguleka kuvame ukubekwa phambili, kulandelwa ukuzinza kwezinga lokushisa eliphezulu, ukumelana nokugqwala kanye nesabelomali sephrojekthi.

I-fine spray orifice region iyindawo evame kakhulu yokwehluleka kwamadubuli asakazwayo.

Izimiso zokukhetha ze-denitration nozzle alloys

Uma uhlola ama-alloys okusakaza ama-denitrification nozzle, fanisa ibanga le-alloy nemodi yokuhluleka evelele endaweni yakho yegesi ephumayo:

• Ukulayisha umlotha osindayo wempukane: beka phambili i-cobalt engagugi noma ama-alloys aqinile;
• Ingozi ephezulu ye-ammonium bisulfate kanye ne-acidic condensate: beka phambili ama-alloys amelana nokugqwala kwe-nickel-molybdenum;
• Izinga lokushisa elizinzile, eliphakeme ngokulingene elinegesi ehlanzekile: sebenzisa insimbi engagqwali engashi ukuze ulawule izindleko.

Amamaki e-alloy ajwayelekile kanye nemingcele yohlelo lokusebenza

Ibanga ngalinye le-alloy liphethe amandla acacile kanye nemikhawulo yezinhlelo zokusebenza zokuphika igesi ye-flue:

• I-310S insimbi engagqwali casting: ifanelekela izinga lokushisa eliphakathi, igesi ye-flue ehlanzekile kanye nokugxila komlotha wempukane ephansi; ukumelana nokuguguleka okulinganiselwe ngaphansi komthelela womlotha osindayo.
• I-Duplex 2205/2507: iletha ukumelana okuhle ne-chloride nokugqwala okune-acidic, kodwa inebanga lokushisa eliphansi eliqhubekayo lesevisi uma kuqhathaniswa nama-alloys asekela ukushisa asuselwa ku-nickel.
• I-Hastelloy C276: ekhethwayo lapho ukugqwala kwe-ammonium bisulfate kanye negesi ene-acidic flue kuyisici esiyinhloko sobungozi; isebenza kahle ezindaweni ezinokhahlo zokugqwala.
• I-Stellite 6 (i-cobalt alloy): ukumelana okuhle kakhulu nokuguguleka kwezinhlayiyana; ukukhetha okuphezulu kwamasayithi anokuqukethwe komlotha wempukane ephezulu, noma kuza ngentengo ye-premium kanye nezindleko zomshini.
• I-Inconel 625: ilungele izimo zesikhungo samandla asetshenziswa amalahle esindayo lapho izinga lokushisa eliphezulu, ukugqwala nokuguguleka komlotha wempukane kusebenza ndawonye.

Ithebula lokuqhathanisa lezinto ezisetshenziswayo zamadubuli e-denitrification

Qaphela: Amazinga okushisa abonisiwe kubhekiselwa kuwo izinga lokushisa eliqhubekayo lesevisi yesikhathi eside kuphela. Izinga lokushisa eliphakeme elidlulayo lingadlula lawa manani. Ngereferensi evamile kuphela. Ukuqinisekiswa kokugcina kwezinto kufanele kuqinisekiswe ngedatha yokwakheka kwegesi ephuma kusayithi lakho kanye nemininingwane yedatha yesigayo sengxubevange.

Inqubo Yokusakaza Yezingxenye Ze-Nozzle Ye-Denitrification

Umzila wokulingisa okhethwayo: Ukutshala imali (ukulahlwa kwe-wax okulahlekile)

Ukufakwa kwe-investimenti, okubuye kwaziwe ngokuthi i-wax casting elahlekile, kuyindlela ehamba phambili yokukhiqiza yokusakazwa kwemibhobho ye-denitrification esebenza kahle kakhulu.

Le nqubo ifaneleka kahle kulezi zingxenye ngezizathu eziningana:

• Ikhiqiza amaphaseji okugeleza angaphakathi ayinkimbinkimbi, izindonga ezincane kanye nezici ezincane ze-orifice zokunemba ezinokwakheka okuphezulu okuphezulu;
• Ikhiqiza indawo ebushelelezi njenge-cast, inciphisa inani lokususwa kwesitoko esidingekayo kumashini we-CNC wakamuva.

Ukulingwa kwesihlabathi ngokuvamile akunconyiwe kumabhobho e-denitrification aneziphaseji eziyinkimbinkimbi zangaphakathi noma ukubekezelela okubalulekile kwesifutho.

Kungase kucatshangelwe kuphela amabhomu alula, angasebenzi kahle anezidingo zokusebenza okuxekethile.

Ukuqedwa kwendawo emagebhugebhu, ubungozi obuphezulu bokugudluka okuyisisekelo kanye ne-porosity yangaphakathi eduze kwamaphaseji amancane okugeleza kwenza ukulingwa kwesihlabathi kungathembeki ezinhlelweni eziningi zokuphika.

Amaphoyinti okulawula ikhwalithi ye-Foundry

Izilawuli zenqubo ye-Foundry zinquma ngokuqondile ukuthi ukusakaza kwe-nozzle kuzosinda yini ekusebenzeni kwenkambu:

• Umkhathi oncibilikayo ovikelekile ukuze ugweme i-oxidation nokulahleka kwesici ekuncibilikeni kwe-alloy ephezulu;
• Ukuhlunga kahle kwensimbi encibilikisiwe ukuze kubanjwe izinhlayiya ze-slag ngaphambi kokugcwalisa isikhunta;
• Ukwakheka ngokwezifiso kwesango nesikhuphukeli esiklanyelwe ngokuqondile i-nozzle geometry, ukuze kuqondiswe izinkinga zokushwabana kude nezingosi zesifutho;
• Ukukhethwa kwempahla yegobolondo ephikisayo ehambisana ne-nickel esebenzayo ne-cobalt alloy alloy.

Amaphutha abalulekile wokulingisa kanye nezingozi zokungaphumeleli zamabhomu e-denitrification

Ukulimala okuthile kokulingisa kudala izinkinga eziqinile zokuthembeka kwamabhomu e-denitrification, ngisho noma ingxenye idlula ukuhlolwa okubonakalayo okuyisisekelo:

• I-shrinkage porosity eduze ne-orifice yesifutho: ingabangela i-atomization engalingani, ukuvuza kwangaphakathi kanye nokuguguleka okushesha kwendawo;
• Ukufakwa kwe-slag: kudala amaphuzu okuqalisa okusakazwa kokuqhekeka ngaphansi kokuhamba ngebhayisikili okushisayo;
• Ukuklebhuka okushisayo: kuvame ukwenzeka ekuguqukeni kwesigaba nasezindongeni zenozzle emincane ngaphansi kwengcindezi ephezulu ye-alloy solidification;
• I-Core shift: ishintsha indawo ye-orifice, i-engeli yesifutho kanye nokusatshalaliswa kokugeleza komlomo oqediwe.

Izinyathelo zokuvimbela zihlanganisa ukulingisa isikhunta, izilinganiso zokupholisa ezilawulwayo kanye nomklamo wokusekela oyinhloko phakathi nokuhlanganiswa kwephethini ye-wax.

I-CNC Machining, Amanothi Okuhlola Nokwamukela

I-Casting iletha okungenalutho komumo we-net-net-net, kodwa izindawo zokusebenza ezibalulekile zomlomo we-denitrification zincike ekucubunguleni okunembayo.

Ukugxilisa imishini ye-nozzle orifice nezindawo zokuvala

I-spray orifice bore, ubuso bokuvala, uxhumo olunentambo kanye nezindawo zokuhlangana ezikhwezayo kudinga ukubekezelela okuqinile imishini ye-CNC.

Ijiyomethri yokugcina ye-orifice ilawula ngokuqondile i-engeli yesifutho, usayizi wamaconsi kanye nezinga lokugeleza.

Ama-alloys asekelwe ku-nickel kanye ne-cobalt anzima ukuwenza umshini.

Izitolo ezikhiqiza i-denitrification nozzle casting zidinga ukukhetha amathuluzi afanele, imingcele yokusika kanye namasu okupholisa ukugwema ukuqina komsebenzi, ukuklebhuka kwendawo kanye nokukhukhuleka kobukhulu.

I-NDT eyimpoqo nokuhlolwa kokwamukela

Ukuhlolwa okujwayelekile kokwamukelwa kokusakazwa kombhobho we-denitrification okubalulekile ngokuvamile kuhlanganisa:

• Ukuhlola ukungena kwe-PT ukuze kutholwe ukuqhekeka kwendawo, izinyembezi ezishisayo kanye ne-porosity eveziwe;
• Ukuhlolwa kwe-Ultrasonic kwe-subsurface shrinkage noma ukufakwa ezingxenyeni eziwugqinsi;
• Ukuhlolwa kokuvuza kwe-Hydrostatic ukuze kuqinisekiswe ukuthi iziteshi zokugeleza zangaphakathi azinakho ukuvuza;
• Ukuhlolwa kobukhulu be-CMM ukuze kuqinisekiswe usayizi we-orifice, i-engeli yesifutho kanye nobukhulu obukhuphukayo buhambisana nemidwebo.

Izinketho zangemuva kokwelashwa

I-passivation ivamise ukusetshenziswa ensimbini engagqwali kanye ne-nickel alloy nozzles ukuze kuthuthukiswe ukumelana nokugqwala.

Ukuzinzisa ukwelashwa kokushisa kungase kucaciswe ukuze kuncishiswe ingcindezi yokusakaza eyinsalela ngaphambi kokufakwa.

Ukubukeka okuqinile kungacatshangelwa ukuvikela ukugqokwa okwengeziwe ezindaweni zokuguguleka komlotha.

Izimo Zokusebenza Ezivamile Zemibhobho Ye-Cast Denitrification

Imibhobho ye-Cast denitrification isatshalaliswa kabanzi kuzo zonke izikhungo zokwelapha igesi enyakazayo:

• Isizinda sikagesi esisebenza ngamalahle i-SCR kanye nezinhlelo ze-SNCR zokuphika;
• amayunithi okukhishwa kwegesi kasimende;
• ama-boilers omlilo we-waste-to-energy kanye ne-biomass;
• Isithando somlilo sezimboni kanye namaphrojekthi wokuhlanza igesi eshibilikayo.

Ungathola imibhobho yethu yokuphika umlingisi ekhasini lethu lomkhiqizo ozinikele.

Ukuze uthole isizinda esithe xaxa sokwenziwa kwezingxenye ezifanayo, ungabuyekeza umhlahlandlela wethu wokusakazwa kwengxubevange yezinga lokushisa eliphezulu.

FAQ

Ngingakwazi ukusebenzisa imibhobho yokusakaza engu-316L ejwayelekile ukuze ngihlukanise i-heavy duty denitrification?

Ngokujwayelekile cha. I-316L inamandla alinganiselwe ezinga lokushisa eliphezulu kanye nokungamelani kahle ne-ammonium bisulfate kanye nokuguguleka komlotha.

Ayifaneleki cishe kuzo zonke izindawo zokuphika umsebenzi osindayo. Kungase kwamukeleke kuphela emazingeni okushisa aphansi kakhulu, amaluphu egesi e-flue ahlanzekile angabalulekile.

Ingabe ukufakwa kwe-investimenti kuhlale kudingekile kuma-denitrification nozzle?

Kumabhomu angokwezifiso anephaseji yangaphakathi eyinkimbinkimbi noma imiklamo yesifutho se-multi-port, ukufakwa kwe-investimenti kukhethwa kakhulu.

Imibhobho elula ye-single-orifice ngezinye izikhathi ingase yenziwe ngomshini kusuka kusitoko sebha, kodwa lokho kuwela ngaphandle kobubanzi balo mhlahlandlela wokusakaza.

Iyiphi imodi yokwehluleka evame kakhulu yokusakazwa komlomo we-denitrification?

Ukuguguleka kwendawo konqenqema lwe-spray orifice, okulandelwa ukugqwala-ukukhathala ukuqhekeka kusukela ku-porosity yokusakaza efihliwe noma amaphutha okufakwa.

Ingabe imibhobho ye-stellite alloy ingalungiswa ngemva kokuguguleka?

Ukulimala okuncane kokuguguleka kwesinye isikhathi kungalungiswa ngokulungisa kabusha i-hardfacing, kodwa ukulungiseka kuncike ekugqinsileni kodonga olusele kanye nendawo okugugile kuyo.

I-nozzle eguguleke kakhulu noma eqhekekile ngokuvamile idinga ukushintshwa.