Pfupiso: Iri gwara rinobata alloy kusarudzwa, maitirwo ekudyara, kukanganisa, CNC machining uye yekuongorora zvinodiwa zvetsika cast denitrification nozzles anoshandiswa muSCR uye SNCR flue gasi masisitimu.
Denitrification nozzles dzakakosha kupfeka zvikamu mukati meSCR uye SNCR flue gasi denitration masisitimu, akafumurwa kune cyclic tembiricha yepamusoro, ammonia / urea corrosion uye kubhururuka kwedota.
Iri gwara rinotarisa pane yakakandwa denitrification nozzles, inovhara yakajairika yekushanda mamiriro, alloy giredhi kuenzanisa, investimendi yekukanda mafambiro, kudzivirira kukanganisa uye CNC yekupedzisa manotsi echinyakare nozzle castings.
Chii chinonzi Cast Denitrification Nozzle & Mamiriro Ebasa Ayo
A cast denitrification nozzle chinhu chakanyatsokandwa chakagadzirirwa kubaya urea kana ammonia reductant zvakafanana muhova dzegasi rekubvisa.
Kusiyana nemanozzles akagadzirwa zvakananga kubva kune yakasimba bar stock, cast denitrification nozzles inotsigira yakaoma yemukati kuyerera nzira, akawanda ekupfapfaidza madoko uye akabatanidzwa ekumisikidza zvimiro zvakaoma kana kudhura kugadzira neakasimba stock machining.
Nzvimbo yekushanda yeflue gasi denitration nozzles inogadzira nzira dzakasanganiswa dzekushatisa dzinopfupisa hupenyu hwesevhisi:
- Kuenderera mberi kana kuchinjika kwepamusoro-tembiricha kuratidzwa mukati mebhailer uye ductwork;
- Kuora kwemakemikari kubva kuammonia, ammonium bisulfate uye acidic flue gasi byproducts;
- Kukukurwa kwechikamu chakasimba chinokonzerwa nedota renhunzi rinotakurwa mukati megasi reflue;
- Kudzokorora bhasikoro rinopisa rinounza kushushikana kwekuneta pazvikamu zvakatetepa-ane madziro uye zvakatenderedza muromo wemuromo.
Ichi chinyorwa hachizonyura zvakadzika muSCR kana SNCR kemikari reaction theory.
Nhungamiro yese pano inomira pane yekukanda zvinhu, kugadzirwa kwemhando uye kuongororwa kwekuzvikanda kwenozzle pachayo.
Alloy Material Sarudzo yeDenitrification Nozzle Castings
Sarudzo yemidziyo ndiyo yakanyanya kunaka sarudzo ye denitrification nozzle sevhisi hupenyu.
Nezve denitration sevhisi, kuramba kwekukurwa kunowanzoiswa pamberi, kuchiteverwa nekudzikama kwepamusoro-tembiricha, kusagadzikana kwekuora uye bhajeti reprojekiti.
Iyo yakanaka spray orifice dunhu ndiyo inonyanya kutadza nzvimbo yekukanda nozzles.
Sarudzo misimboti ye denitration nozzle alloys
Paunenge uchiongorora kukanda alloys e denitrification nozzles, enzanisa iyo alloy giredhi kune yakanyanya kutadza modhi munzvimbo yako yeflue gasi:
- Heavy fly ash loading: koshesa kupfeka-resistant cobalt kana hardfacing alloys;
- High ammonium bisulfate uye acidic condensate ngozi: kuisa mberi nickel-molybdenum corrosion-resistant alloys;
- Yakagadzikana, ine mwero tembiricha yakakwira ine yakachena flue gasi: shandisa kupisa-inodzivirira Stainless simbi yekudzora mutengo.
Yakajairika yekukanda alloy mamakisi & miganhu yekushandisa
Yega yega alloy giredhi inotakura akajeka masimba uye zvisingakwanisi kune flue gasi denitration application:
- 310S Stainless simbi yekukandira: inokodzera tembiricha ine mwero, yakachena flue gasi uye yakaderera nhunzi madota; kushomeka kwekukurwa kwekukura pasi pesimba rinorema madota.
- Duplex 2205 / 2507: inopa kumira kwakanaka kune chloride uye acidic corrosion, asi ine yakaderera inoenderera sevhisi tembiricha yemhando kana ichienzaniswa neye nickel-based heat-resistant alloys.
- Hastelloy C276: inosarudzwa apo ammonium bisulfate corrosion uye acidic flue gasi ndiyo inonyanya kuisa njodzi; inoita zvakanaka munzvimbo dzakaomarara dzinoparadza.
- Stellite 6 (cobalt alloy): kupikisa kwakanyanya kukukurwa kwechikamu; Sarudzo yepamusoro yemasaiti ane yakakwira nhunzi madota, kunyangwe ichiuya pamutengo wepamusoro uye mutengo wekugadzira.
- Inconel 625: yakakodzera kune rinorema-basa-marasha-akabatidza magetsi echirimwa mamiriro apo yakanyanya tembiricha, ngura uye kukukurwa kwedota kunobata pamwe chete.
Tafura yekuenzanisa yemidziyo yekukanda denitrification nozzles
Cherechedza: Tembiricha inoratidzwa inoreva inoenderera yenguva refu yebasa tembiricha chete. Tembiricha yepamusoro-soro inogona kudarika izvi zvakakosha. For general reference chete. Yekupedzisira kusimbiswa kwezvinhu kunofanirwa kusimbiswa neflue gasi yekugadzira data kubva kune yako saiti uye alloy chigayo datasheet.
| Alloy Grade | Max Inopfuurira Service Temp | Corrosion Resistance | Erosion Resistance | Typical Denitration Scenario | Relative Cost |
| 310S Stainless Simbi | 1050 °C | Pakati nepakati | Low | Yakachena flue gasi, low fly ash | Low |
| Duplex 2507 | 315 °C | High | Pakati nepakati | Pakati-tembiricha acidic flue gasi | Pakati |
| Hastelloy C276 | 1040 °C | High High | Pakati nepakati-Pamusoro | Ammonium bisulfate corrosion ngozi | High |
| Stellite 6 | 815 °C | Pakati nepakati | High High | Kukukurwa kwedota renhunzi | High High |
| Inconel 625 | 980 °C | High High | High | Yakasanganiswa high temp, corrosion & erosion | High High |
Kukandira Maitiro eDenitrification Nozzle Zvikamu
Inofarirwa nzira yekukanda: Investment casting (kurasika wax casting)
Investment casting, inozivikanwawo seyakarasika wax casting, ndiyo inotungamira nzira yekugadzira yepamusoro-inoita denitrification nozzle castings.
Iyi nzira yakanyatsokodzera zvikamu izvi nekuda kwezvikonzero zvakawanda:
- Iyo inobereka yakaoma kuyerera kwemukati, madziro matete uye madiki madiki espray orifice maficha ane yakakwirira dimensional kuenderana;
- Iyo inogadzira yakatsetseka se-yakakanda nzvimbo, ichidzikisa huwandu hwekubviswa kwemasheya kunodiwa mune gare gare CNC machining.
Kukandira jecha kazhinji hakukurudzirwe kune chaiyo denitrification nozzles ine yakaoma yemukati ndima kana yakakosha kupfapfaidza kushivirira.
Inogona kutariswa chete kune yakapfava, yakaderera-basa nozzles ine yakasununguka kuita zvinodiwa.
Kupera kwakashata kwepamusoro, njodzi yakakwira yekushanduka kwepakati uye porosity yemukati padyo netunhu tunoyerera inoita kuti jecha risavimbike kune akawanda denitration application.
Foundry quality control points
Foundry process inodzora yakananga kuona kana nozzle casting ichapona kushanda kwemunda:
- Yakadzivirirwa yakanyunguduka mamiriro ekunze kudzivirira oxidation uye kurasikirwa kwechimwe chinhu mune yakakwira-alloy melts;
- Yakakodzera yakanyungudutswa simbi filtration kuteya slag particles vasati vazadza mold mhango;
- Tsika yekugezera uye dhizaini yekusimuka yakagadzirirwa yakanangana nozzle geometry, kunanga shrinkage kuremara kure nekupfapfaidza orifices;
- Refractory shell material kusarudzwa inoenderana ne reactive nickel uye cobalt alloy inonyungudika.
Yakanyanya kukanda hurema & njodzi yekutadza kune denitrification nozzles
Humwe hurema hwekukanda hunogadzira nyaya dzakasimba dzekuvimbika kune denitrification nozzles, kunyangwe chikamu chikapfuura kwekutanga kuona yekuongorora:
- Shrinkage porosity padyo nespray orifice: inogona kukonzera kusaenzana kweatomization, kubuda kwemukati uye kukurumidza kukukurwa kwenzvimbo;
- Slag kusanganisirwa: inogadzira nzvimbo dzekutanga dzekupaza kwekupaza pasi pekupisa bhasikoro;
- Kupisa kubvarura: kunowanzoitika pakuchinja kwechikamu uye madziro akaonda emuromo pasi peyakanyanya alloy solidification kushushikana;
- Core shift: inoshandura orifice chinzvimbo, kupfapfaidza kona uye kuyerera kwekuyerera kwenozzle yapera.
Matanho ekudzivirira anosanganisira mold simulation, controlled cooling rates uye core support design panguva yewax pattern assembly.
CNC Machining, Inspection & Acceptance Notes
Kukandira kunoburitsa iyo yepedyo-net-shape isina chinhu, asi iyo yakakosha inoshanda nzvimbo ye denitrification nozzle inotsamira pane chaiyo post-kugadzirisa.
Machining anotarisa kune nozzle orifice uye yekuisa chisimbiso nzvimbo
Iyo yekupfapfaidza orifice yakaboora, zviso zvekuisa chisimbiso, tambo dzakabatanidzwa uye inokwirisa nzvimbo dzinoda kushivirira kwakasimba CNC machining.
Iyo yekupedzisira orifice geometry inodzora zvakananga kupfapfaidza kona, saizi yekudonha uye chiyero chekuyerera.
Nickel-based uye cobalt-based alloys yakaoma kugadzira.
Zvitoro zvinogadzira denitrification nozzle castings zvinofanirwa kusarudza maturusi akakodzera, kucheka maparamendi uye nzira dzinotonhorera kudzivirira kuomesa basa, kubvaruka kwepamusoro uye kudhiraivha.
Inosungirwa NDT & yekubvuma bvunzo
Yakajairwa yekugamuchirwa yekuongorora yeakakosha denitrification nozzle castings kazhinji inosanganisira:
- PT inopinza yekuongorora kuti ione kuputika kwepamusoro, misodzi inopisa uye porosity yakazaruka;
- UT ultrasonic inspection for subsurface shrinkage kana inclusions muzvikamu zvakakora;
- Hydrostatic leak yekuyedza kuona kuti mukati mekuyerera kwemukati hauna-kuburikidza;
- CMM dimensional yekuongorora kuti isimbise orifice saizi, kupfapfaidza kona uye zviyero zvinokwira zvinoenderana nemadhirowa.
Zvisarudzo zvepashure pekurapa
Passivation inowanzo shandiswa kune simbi isina tsvina uye nickel alloy nozzles kuti ivandudze kusadzivirirwa nekuora kwepasi.
Kudzikamisa kupisa kurapwa kunogona kutsanangurwa kuderedza kusara kwekukanda kushushikana kusati kwaiswa.
Hardfacing inogona kutariswa kune yekuwedzera chengetedzo yekupfeka munzvimbo dzakanyanyisa dzekukukurwa kwedota.
Zvakajairwa Zvekushandisa Mamiriro eCast Denitrification Nozzles
Cast denitrification nozzles akaiswa zvakanyanya munzvimbo dzese dzakamira flue gasi kurapwa nzvimbo:
- Coal-fired power plant SCR uye SNCR denitration systems;
- Cement kiln flue gasi denitration units;
- Waste-to-energy uye biomass combustion boilers;
- Industrial furnace uye incinerator flue gasi kurapwa mapurojekiti.
Iwe unogona kuwana yedu yetsika cast denitrification nozzles pane yedu yakatsaurirwa chigadzirwa peji.
Kuti uwane mamwe mamiriro ezvakafanana kugadzirwa kwechikamu, unogona kuongorora gwara redu repamusoro-tembiricha alloy castings.
FAQ
Ini ndinogona kushandisa yakajairwa 316L yakakandwa nozzles kune inorema-basa denitrification?
Kazhinji kwete. 316L ine mashoma epamusoro-tembiricha simba uye kushomeka kuramba ammonium bisulfate uye kubhururuka kwemadota.
Haina kukodzera kunharaunda dzese dzinorema-duty denitration. Inogona kungogamuchirwa mukupisa kwakanyanya, yakachena flue gasi isiri-yakakosha denitration loops.
Kukandira kwekudyara nguva dzose kunodiwa kune denitrification nozzles?
Kune tsika nozzles ine yakaoma yemukati ndima kana akawanda-port yekupfapfaidza dhizaini, kukanda mari kunodiwa zvakanyanya.
Yakareruka single-orifice nozzles dzimwe nguva inogona kugadzirwa kubva kubhawa stock, asi iyo inowira kunze kwechikamu cheiyi gwara rekukanda.
Ndeipi inonyanya kutadza maitiro e denitrification nozzle castings?
Kukukurwa kwenzvimbo kwemupendero wespray orifice, kuchiteverwa nekuora-kuneta kutsemuka kubva pakuvanda kukanda porosity kana kukanganisa kusanganisa.
Ko stellite alloy nozzles inogona kugadziriswa mushure mekukukurwa?
Kukuvadzwa kudiki kwekukurwa kwevhu dzimwe nguva kunogona kugadziriswa nekuomarara kudzoreredzwa, asi kugadzirisa kugona kunoenderana nekusara kwemadziro ukobvu uye nenzvimbo yekupfeka.
Yakanyanya kukukurwa kana yakatsemuka nozzle castings kazhinji inoda kutsiviwa.
