Nernst N2032-O2 / CO ya ogisijeni hamwe na gaze yaka ibice bibiri

Urutonde rwo gusaba

Nernst N2032-O₂/ CO ogisijene irimo na gaze yakaibice bibirini isesengura ryuzuye rishobora icyarimwe kumenya icyarimwe ibirimo ogisijeni, monoxyde de carbone hamwe nubushobozi bwo gutwika mugikorwa cyo gutwika. Irashobora gukurikirana imyuka ya ogisijeni hamwe na karubone monoxide iri muri gaze ya flue mugihe cyangwa nyuma yo gutwikwa kwamashyiga, itanura, n’itanura.

Abasesenguzi bashakanye na Nernst O.₂/ CO probe irashobora gupima ijanisha rya ogisijeni O.₂% muri flue nitanura, PPM agaciro ka karubone monoxide CO, agaciro ka gaze 12 yaka hamwe nuburyo bwo gutwika itanura ryaka mugihe nyacyo.

Ibiranga porogaramu

Nyuma yo gukoresha Nernst N2032-O₂/ CO ogisijene irimo na gaze yakaibice bibiri, abakoresha barashobora kuzigama ingufu nyinshi no kugenzura ibyuka bihumanya.

Nernst N2032-O₂/ CO ogisijene irimo na gaze yakaibice bibirini tekinoloji idasanzwe ikoresha zirconia imitwe ibiri yubatswe nyuma yimyaka icumi yubushakashatsi kandi irashobora icyarimwe gupima ogisijeni nibirimo monoxyde de carbone. Kugeza ubu ni tekinoroji yukuri yo gupima.Ibiciro bito, byukuri, birashobora gupimwa kumurongo mugihe cyinshi cyinshi nubushyuhe bwinshi.

Mugihe cyo gutwikwa kwa peroxygene, iyo gaze ya lisansi hamwe na ogisijeni ishigikira umuriro bigera ku kintu runaka kiringaniye, ibinyabuzima bya monoxyde de carbone nabyo bizahinduka hamwe n’impinduka nkeya mu mubare wa ogisijeni.Ihinduka ry’imiterere ya ogisijeni n’impinduka icyerekezo cya karubone monoxide ikora icyerekezo kimwe.

Nernst O.₂Ihame ryo gupima CO

Nernst O.₂/ Ubushakashatsi bwa CO bufite electrode ebyiri, zishobora kumenya ibimenyetso bya ogisijeni hamwe n’ikimenyetso gishobora gukongoka icyarimwe.Kuko gaze ya flue yuzuye yuzuye irimo karubone monoxide (CO), ibicanwa na hydrogen (H₂).

Akagari ka ogisijeni ya zirconi cyangwa sensor ya ogisijeni ikoresha imbaraga za ogisijeni iterwa no kuba umwuka wa ogisijeni utandukanye imbere no hanze ya zirconi ku bushyuhe bwinshi (burenze 650 ° C) kugira ngo bapime umwuka wa ogisijeni mu gice cyapimwe. Inyuma igice cyiperereza gikozwe mubyuma bidafite ingese cyangwa ibishishwa byibyuma, bigizwe nicyuma gishyushya ibyuma, umuyoboro wa zirconi, thermocouple, wire, ikibaho cyanyuma hamwe nagasanduku, reba igishushanyo mbonera. Umuyoboro wa zirconi wa probe ni gaze yatewe kuva imbere no hanze yumuyoboro wa zirconia ukoresheje igikoresho gifunga.

Iyo ubushyuhe bwumutwe wa zirconia bugera kuri 650 ° C cyangwa hejuru ukoresheje ubushyuhe cyangwa ubushyuhe bwo hanze, imyuka itandukanye ya ogisijeni kumpande zimbere ninyuma izabyara ingufu za electromotive zijyanye na zirconi.Ubushobozi bwamashanyarazi burashobora gupimwa nu nsinga ijyanye, hamwe nubushyuhe bwigice cyigice gishobora gupimwa na thermocouple ihuye.

Iyo umwuka wa ogisijeni imbere no hanze ya zirconi uzwi, ubushobozi bwa ogisijeni ihuye irashobora kubarwa ukurikije formulaire ya zirconiya.

Inzira niyi ikurikira:

E (milivolts) =4F(RT)loge 

Aho E nubushobozi bwa ogisijeni, R ni gaze ihoraho, T nigiciro cyubushyuhe bwuzuye, PO₂IMBERE nigiciro cyumuvuduko wa ogisijeni imbere ya zirconia, na PO₂HANZE nigiciro cyumuvuduko wa ogisijeni hanze yumuyoboro wa zirconi. Ukurikije formulaire, mugihe imyuka ya ogisijeni imbere no hanze yumuyoboro wa zirconi itandukanye, hazabaho ingufu za ogisijeni ihuye.Bishobora kumenyekana uhereye kumibare yo kubara ko mugihe iyo umwuka wa ogisijeni imbere no hanze ya zirconia ni kimwe, ubushobozi bwa ogisijeni bugomba kuba milivolt 0 (mV).

Niba umuvuduko w'ikirere usanzwe ari ikirere kimwe kandi umwuka wa ogisijeni uri mu kirere ni 21%, formula irashobora koroshya:

()

Iyo ubushobozi bwa ogisijeni bupimwe hamwe nigikoresho cyo gupimisha hamwe nubunini bwa ogisijeni imbere cyangwa hanze yumuyoboro wa zirconi bizwi, umwuka wa ogisijeni wigice cyapimwe urashobora kuboneka ukurikije formulaire ihuye.

Inzira yo kubara niyi ikurikira: (Muri iki gihe, ubushyuhe mu gice cya zirconi bugomba kuba burenze 650 ° C)

(% O.₂) Hanze (ATM) = 0.21 EXPT(-46.421E)

Ibiranga umurongo

Iyo gaze yapimwe irimo O.₂na CO icyarimwe, kubera ubushyuhe bwinshi bwa sensor hamwe n'ingaruka za catalitiki ya platine electrode agace ka sensor, O₂na CO bizabyitwaramo bigere kuri thermodynamic equilibrium leta, PO₂kuruhande rwapimwe rwahindutse kuburyo umwuka wa ogisijeni igice kiringaniye ni P'O₂.

Ibi ni ukubera ko nyuma ya sensor ikora mubushyuhe bwo hejuru, inzira ya O.₂na CO reaction igenda iringaniza iringaniza inzira ya O.₂gukwirakwiza ibitekerezo. Iyo reaction igeze kuringaniza, ikwirakwizwa rya O.₂kwibandaho na byo bikunda guhagarara, ku buryo umuvuduko wa ogisijeni wapimwe igice kiringaniye ari P'O₂.

Ibisubizo bikurikira bikurikira mubice bibi bya ZrO₂bateri:

1/2 O.₂(PO₂) + CO → CO₂

Iyo reaction igeze kuringaniza, O.₂impinduka yibanze, PO₂ni Kugabanuka Kuri P'O₂, no guhindura molekile ya ogisijeni ya gaze na O.₂muri matrix ni:

Electrode mbi:O.₂ → 1/2 O.₂(P'O₂) + 2e

Electrode nziza:1/2 O.₂(PO₂) + 2e → O.₂

Uburyo bwo gutandukanya ingufu za batiri ni:1/2 O.₂ (PO₂) → 1/2 O.₂(P'O₂)

Iyo ingufu za electromotive ya sensor igereranijwe numubare wa mole ya okiside-igabanya gaze, umurongo niwo uranga umurongo usa na titre curve.

Imiterere yiyi miterere iranga munsi yubushyuhe runaka, umuvuduko nigipimo cyogutemba, sensor imwe ifite neza umurongo umwe uranga ubwoko bumwe bwa sisitemu ya gaze.

Kubwibyo, munsi yumuvuduko wikirere hamwe na gaze yapimwe mubitemba bisanzwe, kugereranya imbaraga za electromotive numubare wa mole ya O.₂-CO sisitemu ya sensor ya zirconia ni λ (λ = no2 / nco cyangwa ijanisha ryijwi λ = O₂ × V% / OCO × V%) biranga umurongo.

Iyo Pt-Al₂O₃catalizator itangirwa kuri 600 ° C, CO muri sisitemu yindege irashobora guhinduka rwose muri CO₂, gaze yapimwe rero irimo ogisijeni gusa nyuma yo gutwikwa kwa catalitiki.

Muri iki gihe, sensor ya zirconia ipima neza ogisijeni. Bitewe nubusabane bwa gaze yapimwe mugikorwa cyo gutwika catalitiki, ibipimo bya CO muri gaze yapimwe birashobora gupimwa.Isano iri hagati ya formulaire ya reaction numubare mbere na nyuma yo gutwika catalitike ya gaze yapimwe niyi ikurikira:

Dufate ko kwibumbira hamwe kwa monoxyde de carbone muri gaze yapimwe mbere yuko catisale iba (CO), ubunini bwa ogisijeni ni A1, hamwe na ogisijeni muri gaze yapimwe nyuma ya catalizike ni A, hanyuma:

Mbere yo gutwika ：(CO) A1

Nyuma yo gutwika ：O A.

Hanyuma ：A = A1 - (CO) / 2

Kandi ：λ = A1 / (CO)

：A = λ ×(CO)-(CO)/2

Igisubizo ：(CO)= 2A /(2λ-1)    (λ 0.5)

Ihame ryimiterere ya O.₂Ubushakashatsi bwa CO

O.₂/ CO iperereza ryagize impinduka zijyanye nubushakashatsi bwambere kugirango tumenye imikorere mishya yo kugenzura umuriro. Usibye kumenya ibirimo ogisijeni mugihe cyo gutwikwa, iperereza rishobora no kumenya umuriro utuzuye (CO / H)₂), kubera ko umwuka wa karubone (CO) na hydrogen (H.₂) kubana muri gaz ya flue yo gutwikwa kutuzuye.

Iperereza nikintu cyibanze gikoresha ihame ryamashanyarazi nyuma yo gushyushya zirconi kugirango umenye igipimo.

A. O.₂electrode (platine)

B. electrode ya COe (platine / icyuma cyagaciro)

C. Kugenzura electrode (platine)

Ibice byingenzi bigize iperereza ni urupapuro rwa zirconi rwuzuye rusudira ku muyoboro wa corundum kugira ngo rukore umuyoboro ufunze kandi uhure n’umuyoboro wa gaz wa flue wa sisitemu yo gutwika. Gukoresha electrode yubatswe birashobora gukumira neza ibice byangirika kwangiza electrode kandi kongera ubuzima bwa serivisi.

Imikorere ya electrode ya COe na O.₂electrode ni imwe, ariko itandukaniro riri hagati ya electrode zombi nu mashanyarazi na catalitiki yibikoresho fatizo, kuburyo ibice bishobora gutwikwa muri gaze ya flue nka CO na H₂irashobora kumenyekana no kumenyekana.Mu bihe byo gutwikwa byuzuye, voltage ya "Nernst"₂ikorwa kandi kuri electrode ya COe, kandi izo electrode zombi zifite umurongo umwe. Mugihe hamenyekanye ibicanwa bituzuye cyangwa ibice bishobora gutwikwa, voltage ya "Nernst" UCOe nayo izakorwa kuri electrode ya COe, ariko imirongo iranga electrode zombi zigenda zitandukanye. (Reba ibishushanyo bisanzwe kuri sensor zombi)

Ikimenyetso cya voltage UCO / H.₂ya sensor yuzuye ni ikimenyetso cya voltage gipimwa na electrode ya COe. Iki kimenyetso kirimo ibimenyetso bibiri bikurikira:

UCO / H.₂(sensor yuzuye) = UO₂(ibirimo ogisijeni) + UCO₂/H₂(ibice byaka)

Niba ibirimo ogisijeni byapimwe na O.₂electrode yakuwe mubimenyetso bya sensor yose, umwanzuro ni:

UCOe (ibice byaka) = UCO / H.₂(sensor yose)-UO₂(ibirimo ogisijeni)

Inzira yavuzwe haruguru irashobora gukoreshwa mukubara ibicanwa bishobora gutwikwa COe yapimwe muri ppm.Icyuma gikora iperereza nikimenyetso gisanzwe cya voltage kiranga.Igishushanyo cyerekana umurongo usanzwe (umurongo ucagaguye) wibanda kuri COe mugihe umwuka wa ogisijeni ugabanutse buhoro buhoro.

Iyo gutwikwa byinjiye mu gace katagira umwuka, aho bita "imyuka ihumanya ikirere", iyo umwuka udahagije utera umuriro utuzuye, ubukana bwa COe buziyongera cyane.

Ibimenyetso byerekana ibimenyetso byerekanwe mubishushanyo mbonera.

UO₂(umurongo uhoraho) na UCO / H.₂(umurongo utudomo).

Iyo umwuka urenze kandi gutwikwa bidafite ibice bya COe, sensor ya UO₂na UCO / H.₂ni kimwe, kandi ukurikije ihame rya "Nernst", imyuka ya ogisijeni iriho ya gazi ya flue irerekanwa.

Iyo wegereye "gusohora inkombe", ibimenyetso byose bya sensor signal ya UCO / H.₂ya electrode ya COe yiyongera ku kigero kitagereranywa bitewe n’ikimenyetso cyiyongereye kitari Nernst COe. Kubiranga ibimenyetso bya voltage biranga sensor: UO₂na UCO / H.₂ugereranije nibirimo ogisijeni mumiyoboro ya gaz ya flue, ibintu bisanzwe biranga ibice byaka umuriro COe nabyo bigaragara hano.

Usibye ibimenyetso bya voltage ya sensor UCO / H.₂na UO₂, ugereranije imbaraga za sensor zerekana ibimenyetso dU O.₂/ dt na dUCO / H.₂/ dt na cyane cyane ibimenyetso byerekana ihindagurika rya electrode ya COe irashobora gukoreshwa mugufunga "imyuka yangiza" yo gutwikwa.

(Reba "Gutwika kutuzuye: urwego rwa voltage ihindagurika ya COe electrode UCO / H.₂“)

Ibiranga tekinike

•Imikorere ibiri yinjiza imikorere: Isesengura rimwe rishobora kuba rifite ibikoresho bibiri, bishobora kuzigama ikiguzi cyo gukoresha no kunoza ibipimo byiringirwa.

•Imikorere myinshi isohoka: Isesengura rifite ibimenyetso bibiri 4-20mA byerekana ibyasohotse hamwe na mudasobwa-mudasobwa itumanaho RS232 cyangwa imiyoboro ya RS485. Umuyoboro umwe wa signal ya ogisijeni isohoka, undi muyoboro wa CO isohoka.

•Urwego rwo gupima: Ikigereranyo cyo gupima ogisijeni ni 10^-30kugeza 100% bya ogisijeni, naho ibipimo bya karubone monoxide ni 0-2000PPM.

•Igenamigambi:Isesengura rifite ibyasohotse 1 muri rusange nibisohoka 3 byateganijwe.

• Ihinduramiterere ryikora:Isesengura rizahita rikurikirana sisitemu zitandukanye zikora kandi zihite zihindura kugirango zemeze neza uwasesenguye mugihe cyo gupima.

•Sisitemu y'ubwenge:Isesengura rishobora kurangiza imikorere yimiterere itandukanye ukurikije igenamigambi ryateganijwe.

•Erekana ibikorwa bisohoka:Isesengura rifite imikorere ikomeye yo kwerekana ibipimo bitandukanye hamwe nibisohoka bikomeye no kugenzura imikorere yibintu bitandukanye.

•Igikorwa cyumutekano:Iyo itanura ridakoreshejwe, uyikoresha arashobora kugenzura kuzimya ubushyuhe bwa probe kugirango umutekano ube mukoresha.

•Kwiyubaka biroroshye kandi byoroshye:kwishyiriraho isesengura biroroshye cyane kandi hariho umugozi wihariye wo guhuza na zirconia probe.

Ibisobanuro

Inyongeramusaruro

• Ikizamini kimwe cyangwa bibiri bya zirconi cyangwa icyuma kimwe cya zirconi + CO sensor

• Koresha cyangwa usige ubwoko bwa termometero K, R, J, S.

• Kanda igitutu cya gasi yerekana ibimenyetso

• Guhitamo ibicanwa bibiri bitandukanye

• Igenzura ryibikorwa bitekanye biturika (birakoreshwa gusa kuri probe ishyushye)

Ibisubizo

Imirongo ibiri 4 ～ 20mA DC ibisohoka (umutwaro ntarengwa 1000Ω)

• Urutonde rwa mbere rusohoka (bidashoboka)

Ibisohoka kumurongo 0 ～ 1% kugeza 0 ～ 100% bya ogisijeni

Logarithmic isohoka 0.1 ～ 20% birimo ogisijeni

Micro-ogisijeni isohoka 10^-39kugeza 10^-1umwuka wa ogisijeni

• Urwego rwa kabiri rusohoka (rushobora gutoranywa muri ibi bikurikira)

Ibirimo bya karubone (CO) agaciro ka PPM

Dioxyde de Carbone (CO₂)%

Gupima gaze gupima PPM agaciro

Gukora neza

Andika agaciro ka ogisijeni

Agaciro ko gutwika

Ubushuhe

Icyiciro cya kabiri cyerekana

• Carbone monoxide carbone (CO) PPM

• Gukongeza gaze neza

• Shakisha ingufu za voltage

• Ubushyuhe bwa probe

Ubushyuhe bwibidukikije

• Umunsi w'ukwezi

Ubushuhe bw’ibidukikije

Ubushuhe

• Gukora iperereza

Indangagaciro ya Hypoxia

• Igihe cyo gukora no kubungabunga

Itumanaho rya mudasobwa / icapiro

Isesengura rifite icyambu cya RS232 cyangwa RS485, gishobora guhuzwa neza na terefone ya mudasobwa cyangwa printer, kandi iperereza nigikoresho gishobora gupimwa hakoreshejwe mudasobwa.

Gusukura umukungugu hamwe na kalibrasi isanzwe

Isesengura rifite umuyoboro 1 wo kuvanaho ivumbi hamwe numuyoboro 1 wa kalibrasi isanzwe ya gazi cyangwa imiyoboro 2 yo gusohora gaze isanzwe ya gaze, hamwe na solenoid valve ishobora gukoreshwa mu buryo bwikora cyangwa intoki.

UkuriP

± 1% yo gusoma ogisijeni nyirizina hamwe no gusubiramo 0.5%. Kurugero, kuri 2% ogisijeni neza yaba ± 0,02% ogisijeni.

ImpuruzaP

Isesengura rifite impuruza 4 rusange hamwe nibikorwa 14 bitandukanye, hamwe na 3 zishobora gutondekwa. Irashobora gukoreshwa mubimenyetso byo kuburira nkibiri hejuru na bike bya ogisijeni, CO nini kandi ntoya, hamwe namakosa ya probe namakosa yo gupima.

Kugaragaza urwegoP

Kwerekana mu buryo bwikora 10^-30～ 100% O2 ya ogisijeni na 0ppm ～ 2000ppm CO ya karubone monoxide.

Gazi yerekanaP

Gutanga umwuka na pompe ya moteri ya moteri.

Imbaraga

85VAC kugeza 264VAC 3A

Gukoresha Ubushyuhe

Ubushyuhe bukora -25 ° C kugeza 55 ° C.

Ubushuhe bugereranije 5% kugeza 95% (kudahuza)

Impamyabumenyi yo Kurinda

IP65

IP54 hamwe na pompe yindege yimbere

Ibipimo n'uburemere

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