INernst N2032-O2/CO umxholo weoksijini kunye nerhasi etshayo enamacandelo amabini analyzer

Uluhlu lwesicelo

INernst N2032-O₂/ CO isiqulatho seoksijini kunye negesi evuthayoisihlalutyi samacandelo amabinii-analyzer ebanzi enokuthi ibone ngaxeshanye umxholo we-oksijeni, i-carbon monoxide kunye nokusebenza kakuhle kokutsha kwinkqubo yokutshisa.Iyakwazi ukubeka iliso umxholo we-oksijini kunye nomxholo we-carbon monoxide kwi-flue gas ngexesha okanye emva kokutshiswa kweebhoyili, ii-furnaces kunye ne-kilns.

Iqabane lomhlalutyi kunye noNernst O₂/I-CO probe inokulinganisa ipesenti ye-oxygen yesiqulatho se-O₂I-% kwi-flue kunye nesithando somlilo, ixabiso le-PPM le-carbon monoxide CO, ixabiso leegesi ezivuthayo ze-12 kunye nokusebenza kakuhle kokutsha kwesithando somlilo ngexesha langempela.

Iimpawu zesicelo

Emva kokusebenzisa iNernst N2032-O₂/ CO isiqulatho seoksijini kunye negesi evuthayoisihlalutyi samacandelo amabini, abasebenzisi banokugcina amandla amaninzi kunye nokulawula ukukhutshwa kwegesi ephumayo.

INernst N2032-O₂/ CO isiqulatho seoksijini kunye negesi evuthayoisihlalutyi samacandelo amabiniiteknoloji ekhethekileyo esebenzisa i-zirconia-head-head structure ephuhliswe emva kweminyaka elishumi yophando kwaye inokulinganisa ngaxeshanye umxholo we-oksijini kunye nomxholo we-carbon monoxide.Okwangoku kuyinyani yokulinganisa iteknoloji ye-line.Ixabiso eliphantsi, ukuchaneka okuphezulu, kunokulinganiswa kwi-intanethi phantsi kweemeko ezahlukeneyo zokufuma kunye neemeko zothuli oluphezulu.

Kwinkqubo yokutsha kwe-peroxygen, xa igesi yamafutha kunye ne-oksijini exhasa ukutsha ifikelela kwindawo ethile yokulinganisa okuguquguqukayo, umxholo we-carbon monoxide uya kutshintsha kwakhona kunye noshintsho oluncinci kwixabiso le-oksijeni.Ukutshintsha komxholo we-oksijeni kunye nokutshintsha Indlela yecarbon monoxide yenza kwaloo mkhwa uphezulu.

Nernst O₂Umgaqo wokulinganisa we-CO

UNernst O₂/ I-CO probe ine-electrodes ezimbini, ezinokubona zombini i-oxygen signal kunye nesignali evuthayo ngexesha elifanayo.Ngenxa yokuba igesi ye-flue evuthayo engaphelelanga iqulethe i-carbon monoxide (CO), izinto ezinokutsha kunye ne-hydrogen (H₂).

Iseli ye-oxygen ye-zirconia probe okanye i-oxygen sensor isebenzisa amandla e-oksijini eyenziwa yi-oksijini eyahlukeneyo ye-oksijeni ngaphakathi nangaphandle kwe-zirconia kwiqondo lokushisa eliphezulu (ngaphezu kwe-650 ° C) ukulinganisa umxholo we-oksijini yenxalenye elinganisiweyo. inxalenye yeprobe yenziwe ngegobolondo lensimbi engenasici okanye i-alloy shell yensimbi, eyenziwe nge-alloy steel heater, i-zirconia tube, i-thermocouple, ucingo, ibhodi ye-terminal kunye nebhokisi, jonga umzobo we-schematic.Ityhubhu ye-zirconia ye-probe ifakwe kwigesi ngaphakathi nangaphandle kwetyhubhu ye-zirconia ngokusebenzisa isixhobo sokutywina esihambelanayo.

Xa ubushushu bentloko ye-zirconia probe bufikelela kuma-650 ° C okanye ngaphezulu ngokusebenzisa isifudumezi okanye ubushushu bangaphandle, ukugxilwa kweoksijini okwahlukileyo kumacala angaphakathi nangaphandle kuya kuvelisa amandla ahambelana ne-electromotive kumphezulu we-zirconia. ngocingo oluhambelanayo olukhokelela, kunye nexabiso leqondo lokushisa lenxalenye linokulinganiswa ne-thermocouple ehambelanayo.

Xa i-oksijini yoxinaniso ngaphakathi nangaphandle kwetyhubhu ye-zirconia iyaziwa, amandla e-oksijini ahambelanayo angabalwa ngokuhambelana ne-zirconia enokubala ifomula.

Ifomula yile ilandelayo:

E (millivolts) =4F(RT)loge 

Apho i-E inamandla e-oksijeni, i-R yigesi engatshintshiyo, i-T yixabiso elipheleleyo lobushushu, i-PO₂NGAPHAKATHI ixabiso loxinzelelo lwe-oksijini ngaphakathi kwi-tube ye-zirconia, kunye ne-PO₂NGAPHANDLE lixabiso loxinzelelo lwe-oksijini ngaphandle kwetyhubhu ye-zirconia. Ngokutsho kwefomula, xa uxinaniso lwe-oksijini ngaphakathi nangaphandle kwetyhubhu ye-zirconia yahlukile, amandla oksijini ahambelanayo aya kuveliswa. Iyakwazi ukwaziwa kwifomula yokubala ukuba xa i-oxygen concentration ngaphakathi nangaphandle kwe-tube ye-zirconia iyafana, amandla oksijini kufuneka abe yi-0 millivolt (mV).

Ukuba umgangatho woxinzelelo lwe-atmospheric yi-atmosphere enye kwaye i-oksijini yoxinzelelo emoyeni ngama-21%, ifomula inokwenziwa lula ukuba:

()

Xa amandla e-oksijeni alinganiswa ngesixhobo sokulinganisa kunye nokugxininiswa kwe-oksijini ngaphakathi okanye ngaphandle kwe-tube ye-zirconia eyaziwayo, umxholo we-oksijini wenxalenye elinganisiweyo unokufumaneka ngokwendlela ehambelana nayo.

Ifomula yokubala ngolu hlobo lulandelayo: (Ngeli xesha, iqondo lobushushu kwindawo ye-zirconia kufuneka libe likhulu kune-650°C)

(%O₂) NGAPHANDLE (ATM) = 0.21 EXPT(-46.421E)

Igophe lophawu

Xa irhasi elinganisiweyo ine-O₂kunye ne-CO ngexesha elifanayo, ngenxa yokushisa okuphezulu kwenzwa kunye nefuthe le-catalytic yendawo ye-electrode yeplatinam yenzwa, O.₂kunye ne-CO iya kusabela kwaye ifikelele kwimo ye-thermodynamic equilibrium, i-PO₂kwicala elilinganisiweyo litshintshile ukuze i-oksijini yoxinzelelo lwe-partial equilibrium yi-P'O₂.

Oku kungenxa yokuba emva kokuba i-sensor ivuliwe kwiqondo lokushisa eliphezulu, inkqubo ye-O₂kunye ne-CO reaction ethande ukulingana ihambelana nenkqubo ye-O₂ukusasazwa koxinzelelo.Xa impendulo ifikelela kwi-equilibrium, ukusasazwa kwe-O₂Ugxininiso luphinde luthande ukuzinza, ukwenzela ukuba i-oksijini elinganiselweyo yoxinzelelo lwe-equilibrium yi-P'O₂.

Ezi mpendulo zilandelayo zenzeka kwindawo engalunganga ye-ZrO₂ibhetri:

1/2 O₂(PO₂)+CO→CO₂

Xa impendulo ifikelela kwi-equilibrium, i-O₂utshintsho logxininiso, PO₂ithotywe yaba yiP'O₂, kunye nokuguqulwa kweemolekyuli ze-oksijini zegesi kunye ne-O₂kwi-matrix yile:

I-electrode engalunganga:O₂ → 1/2 O₂(P'O₂)+2e

I-electrode entle:1/2 O₂(PO₂)+2e → O₂

Inkqubo yomahluko woxinaniso lwebhetri yile:1/2 O₂ (PO₂) → 1/2 O₂(P'O₂)

Xa i-electromotive force ye-sensor ithelekiswa nenani le-moles ye-oxidation-reduction gas, i-curve yi-curve yempawu efana ne-titration curve.

Ubume bolu phawu lwegophe phantsi kobushushu obuthile, uxinzelelo kunye nesantya sokuhamba, isivamvo esifanayo sinophawu olufana ncakasana lwegophe lohlobo olufanayo lwenkqubo yegesi.

Ke ngoko, phantsi koxinzelelo lwe-atmospheric kunye negesi elinganisiweyo ekuhambeni kwendalo, uthelekiso lwamandla e-electromotive kunye nenani lee-moles ze-O.₂-CO inkqubo ye-zirconia yoluvo yi-λ (λ=no2 /nco okanye ipesenti yevolumu λ=O₂ × V %/OCO × V %) ijika leempawu.

Xa iPt-Al₂O₃I-catalyst i-catalyzed kwi-600 ° C, i-CO kwinkqubo ye-aerobic inokuguqulwa ngokupheleleyo kwi-CO₂, ngoko igesi elinganisiweyo iqulethe ioksijini kuphela emva kokutsha kwe-catalytic.

Ngeli xesha, inzwa ye-zirconia ilinganisa umxholo ochanekileyo we-oxygen.Ngenxa yobudlelwane begesi elinganisiweyo phantsi kwesenzo sokutsha kwe-catalytic, umxholo we-CO kwigesi elinganisiweyo unokulinganiswa.Ubudlelwane phakathi kwefomula yokusabela kunye nobuninzi ngaphambi nangemva kokutshiswa kwe-catalytic yegesi elinganisiweyo ngolu hlobo lulandelayo:

Masithi i-concentration ye-carbon monoxide kwi-gas elinganisiweyo ngaphambi kokuba i-catalysis yi (CO), ukuxinwa kwe-oksijini yi-A1, kunye nokuxinwa kwe-oksijini kwigesi elinganisiweyo emva kwe-catalysis ngu-A, ngoko:

Ngaphambi kokutshisa:(CO) A1

Emva kokutshisa:O A

Emva koko:A=A1 – (CO)/2

Kwaye:λ =A1 /(CO)

Ngoko:A=λ ×(CO)-(CO)/2

Isiphumo:(CO)= 2A /(2λ-1)    (λ＞0.5)

Umgaqo-siseko we-O₂/ CO probe

I-O₂/ I-CO probe yenze utshintsho oluhambelanayo kwisiseko seprobe yokuqala ukuqonda umsebenzi omtsha wokulawula ukutsha.Ngaphezu kokufumanisa umxholo we-oksijeni ngexesha lenkqubo yokutsha, i-probe iyakwazi ukubona izinto ezinokutsha ezingagqibekanga (CO / H).₂), kuba i-carbon monoxide (CO) kunye ne-hydrogen (H₂) zihlala kwi-flue gas yokutsha okungaphelelanga.

I-probe yinto esisiseko esebenzisa umgaqo we-electrochemical emva kokufudumeza kwe-zirconia ukuqonda umlinganiselo.

A. O₂i-electrode (iplatinam)

B. I-electrode ye-COe (iplatinam/intsimbi exabisekileyo)

C. Lawula i-electrode (iplatinam)

Inxalenye ephambili ye-probe yi-zirconia composite sheet edityanisiweyo kwi-tube ye-corundum ukwenza ityhubhu etywiniweyo kwaye ibonakaliswe kumzila wegesi ye-flue yenkqubo yokutsha. ukwandisa ubomi benkonzo.

Imisebenzi ye-COe electrode kunye ne-O₂i-electrode iyafana, kodwa umahluko phakathi kwee-electrode ezimbini yi-electrochemical and catalytic properties of the raw materials, ukwenzela ukuba amacandelo anokutsha kwigesi yomkhuhlane efana ne-CO kunye ne-H.₂inokuchongwa kwaye ibhaqwe.Kwimeko yokutsha ngokupheleleyo, i-voltage "Nernst" UO₂nayo yenziwe kwi-electrode ye-COe, kwaye ezi electrode zimbini zineempawu zegophe ezifanayo.Xa kubonwa ukutsha okungaphelelanga okanye izinto ezinokutsha, i-voltage engeyiyo-"Nernst" i-UCOe nayo iya kwenziwa kwi-electrode ye-COe, kodwa iimpawu zeegophe ze-electrode ezimbini zihamba ngokwahlukeneyo. (Jonga iigrafu eziqhelekileyo kuzo zombini izinzwa)

Umqondiso wombane UCO/H₂ye-sensor iyonke ngumqondiso wombane olinganiswa yi-electrode ye-COe.Lo mqondiso uquka le miqondiso mibini ilandelayo:

UCO/H₂(uluvo lulonke) = UO₂(umxholo weoksijini) + UCO₂/H₂(amalungu anokutsha)

Ukuba umxholo weoksijini ulinganiswa yi-O₂I-electrode ithathwa kumqondiso we-sensor iyonke, isiphelo sithi:

UCOe (icandelo elivuthayo) = UCO/H₂(uluvo lulonke)-UO₂(umxholo weoksijini)

Le fomyula ingentla ingasetyenziselwa ukubala icandelo elivuthayo le-COe elilinganiswe kwi-ppm.Inzwa ye-probe yimpawu yesignali ye-voltage eqhelekileyo.Igrafu ibonisa i-curve eqhelekileyo (umgca we-dashed) we-concentration ye-COe xa umxholo we-oksijini uyancipha ngokuthe ngcembe.

Xa ukutshisa kungena kwindawo engenawo umoya, kwindawo ebizwa ngokuba yi "emission edge" point, xa umoya onganeleyo ubangela ukutsha okungaphelelanga, i-concentration ye-COe ehambelanayo iya kwanda kakhulu.

Iimpawu zomqondiso ezifunyenweyo ziboniswa kwidayagram ye-probe curve.

UO₂(umgca oqhubekayo) kunye ne-UCO/H₂(umgca onamachokoza).

Xa umoya ungaphezulu kwaye ukutsha kukhululekile ngokupheleleyo kumacandelo e-COe, umqondiso we-sensor UO₂kunye ne-UCO/H₂ziyafana, kwaye ngokomgaqo othi "Nernst", umxholo okhoyo we-oksijini we-flue gas channel uyaboniswa.

Xa usondela "kwi-discharge edge", isignali yombane we-sensor ye-UCO / H₂I-electrode ye-COe inyuka ngesantya esingenakulinganiswa ngenxa yesignali eyongezelelweyo engeyiyo ye-Nernst ye-COe. Kwiimpawu zesignali yombane we-sensor: UO₂kunye ne-UCO/H₂ngokumalunga nomxholo we-oksijini kumjelo wegesi ye-flue, iimpawu eziqhelekileyo zecandelo elivuthayo le-COe nazo ziboniswa apha.

Ukongeza kwiimpawu zombane ze-UCO / H₂kunye UO₂, imiqondiso yoluvo oluguqukayo ngokwentelekiso i-dU O₂/dt kunye ne-dUCO/H₂/dt kwaye ngokukodwa uluhlu lwesignali yokuguquguquka ye-electrode ye-COe ingasetyenziselwa ukutshixa "i-edge edge" yokutsha.

(Jonga “Ukutsha okungaphelelanga: uluhlu lokuguquguquka kwamandla ombane we-COe electrode UCO/H₂“)

Iimpawu zobugcisa

•Umsebenzi wegalelo eliphindwe kabini: Omnye umhlalutyi unokuxhotyiswa ngeeprobes ezimbini, ezinokugcina iindleko zokusetyenziswa kunye nokuphucula ukuthembeka komlinganiselo.

•Umsebenzi wemveliso emininzi: I-analyzer ineziphumo ezimbini ze-4-20mA zangoku eziphumayo kunye ne-computer-computer yonxibelelwano ujongano RS232 okanye inethiwekhi RS485 interface.Elinye ijelo lemveliso ye-oksijini ye-oksijini, elinye ijelo lemveliso ye-CO.

•Uluhlu lomlinganiselo: Uluhlu lomlinganiselo we-oxygen li-10^-30ukuya kwi-100% ye-oxygen content, kunye ne-carbon monoxide yokulinganisa uluhlu lwe-0-2000PPM.

•Useto lwe-alam:I-analyzer ine-1 imveliso ye-alarm jikelele kunye ne-3 iziphumo ze-alarm ezicwangcisiweyo.

• Ulungelelwaniso oluzenzekelayo:I-analyzer iya kubeka esweni ngokuzenzekelayo iinkqubo ezahlukeneyo zokusebenza kunye nokulinganisa ngokuzenzekelayo ukuqinisekisa ukuchaneka kwe-analyzer ngexesha lokulinganisa.

•Inkqubo yobukrelekrele:I-analyzer inokugqiba imisebenzi yezicwangciso ezahlukeneyo ngokwezicwangciso ezichazwe kwangaphambili.

•Bonisa umsebenzi wemveliso:I-analyzer inomsebenzi oqinileyo wokubonisa iiparitha ezahlukeneyo kunye nesiphumo esinamandla kunye nomsebenzi wokulawula iiparitha ezahlukeneyo.

•Umsebenzi wokhuseleko:Xa isithando somlilo singasebenzi, umsebenzisi unokulawula ukucima i-heater ye-probe ukuqinisekisa ukhuseleko ngexesha lokusetyenziswa.

•Ukufakela kulula kwaye kulula:ukufakwa kwe-analyzer kulula kakhulu kwaye kukho ikhebula elikhethekileyo lokudibanisa ne-zirconia probe.

Iinkcukacha

Igalelo

• I-zirconia probes enye okanye ezimbini okanye enye i-zirconia probe + CO sensor

• Udidi lwethemometha oluselugcinweni lweflue okanye olushiyekileyo K, R, J, S uhlobo

• Igalelo lophawu lokucoca irhasi yoxinzelelo

• Ukukhetha izibaso ezimbini ezahlukeneyo

• Ulawulo lokusebenza olukhuselekileyo olungaqhambukayo (lusebenza kuphela kwiprobe eshushu)

Iziphumo

Imigca emibini yemveliso ye-4～20mA ye-DC yophawu (ubukhulu bomthwalo 1000Ω)

• Uluhlu lwemveliso yokuqala (uyazikhethela)

Imveliso yomgca 0～1% ukuya kwi-0～100% umxholo we-oxygen

Imveliso ye-Logarithmic 0.1 ~ 20% umxholo we-oxygen

Imveliso ye-Micro-oxygen 10^-39ukuya ku10^-1umxholo weoksijini

• Uluhlu lwemveliso lwesibini (linokukhethwa kokulandelayo)

Umxholo weCarbon monoxide (CO) ixabiso lePPM

Ikhabhon diokside (CO₂)%

Umlinganiselo werhasi etshayo ixabiso lePPM

Ukusebenza kakuhle kokutshisa

Ngena ixabiso le-oxygen

Ixabiso lokutsha kweAnoxic

Ubushushu bomkhuhlane

Umboniso weParameter yesibini

• Ikhabhon monoxide carbon (CO) PPM

• Ukusebenza kakuhle kwerhasi etshayo

• Phanda amandla ombane

• Ubushushu beprobe

• Ubushushu obugciniwe

• Usuku lwenyanga yonyaka

• Ukufuma okusingqongileyo

• Ubushushu bomkhuhlane

• Phanda ukusilela

• Isalathiso se-Hypoxia

• Ixesha lokusebenza kunye nokugcinwa

Unxibelelwano lwekhompyuter / lomshicileli

I-analyzer ine-RS232 okanye i-RS485 ye-port ye-serial output, enokuthi idibaniswe ngokuthe ngqo kwi-terminal yekhompyutheni okanye umshicileli, kunye ne-probe kunye nesixhobo sinokufunyaniswa ngekhompyutheni.

Ukucoca uthuli kunye nokulinganisa igesi eqhelekileyo

I-analyzer ine-channel ye-1 yokususa uthuli kunye ne-1 ishaneli yokulinganisa igesi eqhelekileyo okanye iziteshi ezi-2 zokuhanjiswa kwegesi eqhelekileyo yokulinganisa i-relay, kunye ne-solenoid valve switch enokuthi iqhutywe ngokuzenzekelayo okanye ngesandla.

UkuchanekaP

± 1% yeyona nto ifundwayo ye-oksijini kunye nokuphindaphinda kwe-0.5%.Ngokomzekelo, kwi-2% ye-oksijeni ukuchaneka kuya kuba yi-± 0.02% oksijini.

IialamuP

I-analyzer ine-4 i-alamu jikelele kunye nemisebenzi eyahlukeneyo ye-14, kunye ne-3 alarms programmable.Ingasetyenziselwa izibonakaliso ezilumkiso ezifana nomxholo ophezulu kunye ne-oksijini ephantsi, i-CO ephezulu kunye nephantsi, kunye neempazamo zeprobe kunye neempazamo zokulinganisa.

Uluhlu lokubonisaP

bonisa ngokuzenzekelayo i-10^-30～100% O2 umxholo weoksijini kunye ne-0ppm～2000ppm CO isiqulatho se-carbon monoxide.

Irhasi yereferensiP

Ubonelelo lomoya ngempompo yokungcangcazela kwemotor encinci.

Power Ruireqements

85VAC ukuya 264VAC 3A

Ubushushu bokusebenza

Ubushushu bokusebenza -25°C ukuya kuma-55°C

Ukufuma okuzalanayo 5% ukuya 95% (non-condensing)

Umgangatho woKhuselo

IP65

IP54 enempompo yomoya yesalathiso sangaphakathi

Imilinganiselo kunye nobunzima

300mm W x 180mm H x 100mm D 3kg