Nernst N2032-O2/CO oxygen maʻiʻo a me ke kinoea hoʻopau ʻia ʻelua mea hoʻoponopono

ʻO ka wehewehe pōkole:

ʻO ka hoa loiloi me Nernst O2/CO hiki ke ana i ka pākēneka maʻiʻo oxygen O2% i loko o ka flue a me ka umu ahi, ka waiwai PPM o carbon monoxide CO, ka waiwai o 12 kinoea puhi a me ka pono o ka puhi ahi i ka manawa maoli.

Hōʻike 'akomi iā 10-30~100% O2 maʻiʻo oxygen a me 0ppm~2000ppm CO maʻiʻo monoxide.


Huahana Huahana

Huahana Huahana

Laulā noi

ʻO ka Nernst N2032-O2/CO oxygen maʻiʻo a me ke kinoea puhimea hoʻoponopono ʻeluaʻO ia ka mea hoʻoponopono piha e hiki ke ʻike i ka ʻike o ka oxygen i ka manawa like, carbon monoxide a me ka pono o ka puhi ʻana i ke kaʻina puhi. Hiki iā ia ke nānā i ka ʻike o ka oxygen a me ke kalapona monoxide i loko o ke kinoea puhi i ka wā a i ʻole ma hope o ka puhi ʻana o nā paila, umu ahi, a me nā kiln.

ʻO ka hoa loiloi me Nernst O2/CO hiki ke ana i ka pākēneka maʻiʻo oxygen O2% i loko o ka flue a me ka umu ahi, ka waiwai PPM o carbon monoxide CO, ka waiwai o 12 kinoea puhi a me ka pono o ka puhi ahi i ka manawa maoli.

Nā hiʻohiʻona noi

Ma hope o ka hoʻohana ʻana iā Nernst N2032-O2/CO oxygen maʻiʻo a me ke kinoea puhimea hoʻoponopono ʻelua, hiki i nā mea hoʻohana ke mālama i ka nui o ka ikehu a hoʻopaʻa i nā hoʻokuʻu kinoea.

ʻO ka Nernst N2032-O2/CO oxygen maʻiʻo a me ke kinoea puhimea hoʻoponopono ʻeluaHe ʻenehana kū hoʻokahi e hoʻohana ana i ka zirconia pālua-poʻo i kūkulu ʻia ma hope o ʻumi makahiki o ka noiʻi ʻana a hiki ke ana like i ka ʻike oxygen a me ka maʻi carbon monoxide. He ʻenehana ana i kēia manawa ʻoiaʻiʻo. ʻO ke kumukūʻai haʻahaʻa, ka pololei kiʻekiʻe, hiki ke ana ʻia ma ka pūnaewele ma lalo o nā kūlana kiʻekiʻe kiʻekiʻe a me nā kūlana lepo kiʻekiʻe.

I ke kaʻina hana o ka peroxygen combustion, i ka wā e hiki ai ke kinoea wahie a me ka oxygen e kākoʻo ana i ke ahi i kahi kikoʻī equilibrium ikaika, e hoʻololi pū ka ʻike kalapona monoxide me ka hoʻololi iki ʻana i ka nui o ka oxygen. ʻO ke ʻano o ka carbon monoxide e like me ke ʻano superimposed.

Nernst O2/CO ke ana ana kumu

ʻO ka Nernst O2/ CO probe loaʻa nā electrodes ʻelua, hiki ke ʻike i ka hōʻailona oxygen a me ka hōʻailona puhi i ka manawa like.2).

Ke hoʻohana nei ke kelepona oxygen o ka zirconia probe a i ʻole oxygen sensor i ka hiki o ka oxygen i hana ʻia e nā ʻano oxygen ʻokoʻa ma loko a ma waho o ka zirconia ma ke kiʻekiʻe wela (ʻoi aku ma mua o 650 ° C) e ana i ka ʻike oxygen o ka ʻāpana i ana ʻia. ʻO ka hapa o ka probe i hana ʻia me ke kila kila a i ʻole ka ʻili kila, i haku ʻia me ka mea hoʻomehana kila, zirconia tube, thermocouple, uea, terminal board a me ka pahu, e ʻike i ke kiʻi schematic. ka loko a me waho o ka paipu zirconia ma o kahi mea hoʻopaʻa hoʻopili pili.

Ke piʻi ka mahana o ka zirconia probe poʻo i 650 ° C a ʻoi aku paha ma o ka mea wela a i ʻole ka wela o waho, e hoʻohua nā ʻokoʻa oxygen like ʻole ma nā ʻaoʻao i loko a me waho e hoʻohua i ka ikaika electromotive ma luna o ka ʻili o ka zirconia. Hiki ke ana ʻia ka mana uila. e ka uea alakai pili, a hiki ke ana i ka waiwai wela o ka hapa e ka thermocouple pili.

Ke ʻike ʻia ka neʻe ʻana o ka oxygen i loko a i waho o ka pahu zirconia, hiki ke helu ʻia ka hiki o ka oxygen e like me ke kumu helu helu zirconia.

Penei ke kumu:

E (milivolts) =4F(RT)loge dsd

Ma kahi o E ka hiki o ka oxygen, R ke kinoea mau, T ka waiwai wela piha, PO2ʻO INSIDE ka waiwai kaomi o ka oxygen i loko o ka paipu zirconia, a me PO2ʻO waho ka waiwai kaomi o ka oxygen ma waho o ka zirconia tube. E like me ke ʻano, ke ʻokoʻa ka ʻike o ka oxygen i loko a ma waho o ka pahu zirconia, e hana ʻia ka hiki o ka oxygen e pili ana. ʻO ka nui o ka oxygen i loko a ma waho o ka pahu zirconia ua like ia, ʻo ka hiki o ka oxygen he 0 millivolt (mV).

Inā he hoʻokahi lewa ke kaomi o ka lewa maʻamau a he 21% ka nui o ka oxygen i ka lewa, hiki ke maʻalahi ke kumu i:

dfb

()

Ke ana ʻia ka hiki o ka oxygen me kahi mea ana a ʻike ʻia ka ʻike o ka oxygen i loko a i waho paha o ka paipu zirconia, hiki ke loaʻa ka ʻike oxygen o ka ʻāpana i ana ʻia e like me ke ʻano pili.

Penei ka helu helu: (I kēia manawa, ʻoi aku ka nui o ka mahana ma ka ʻāpana zirconia ma mua o 650 ° C)

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

Pipi ʻano

fdb 

Ke loaʻa i ke kinoea ana ʻo O2a me CO i ka manawa like, ma muli o ke kiʻekiʻe o ka wela o ka sensor a me ka hopena catalytic o ka platinum electrode wahi o ka sensor, O2a hiki i ka CO a hiki i kahi kūlana kaulike thermodynamic, ka PO2ma ka ʻaoʻao ana ua hoʻololi ʻia i PʻO ke kaomi ʻāpana o ka oxygen ma ke kaulike2.

ʻO kēia no ka mea ma hope o ka hana ʻana o ka sensor i ka wela kiʻekiʻe, ke kaʻina o O2a ʻo ka hopena CO e mālama ana i ke kaulike ua like ia me ke kaʻina hana o O2ka hoʻopuehu ʻana. Ke hiki ka hopena i ke kaulike, ka laha ana o O2ʻO ka hoʻopaʻa ʻana nō hoʻi ka hoʻopaʻa ʻana, no laila ʻo ke ana ʻana o ke kaomi ʻāpana oxygen i ke kaulike ʻana he PʻO2.

Loaʻa nā ʻano hopena ma ka wahi ʻino o ka ZrO2pākaukau:

1/2 O2(PO2)+CO→CO2

Ke hiki ka pane i ke kaulike, ʻo ka O2hoʻololi ka manaʻo, PO2ua hoemiia i P'O2, a me ka hoʻololi ʻana o nā molekele oxygen kinoea a me O2i loko o ka matrix:

ʻO ka electrode maikaʻi ʻole:O2 → 1/2 O2(P'O2)+2e

ʻO ka electrode maikaʻi:1/2 O2(PO2)+2e → ʻO2

ʻO ke kaʻina hana ʻokoʻa o ka pākaukau:1/2 O2 (PO2) → 1/2 ʻO2(P'O2)

Ke hoʻohālikelike ʻia ka ikaika electromotive o ka mea ʻike me ka helu o nā mole o ke kinoea hoʻoemi hoʻemi ʻana, ʻo ka pihi kahi ʻano ʻano like me ka curve titration.

ʻO ke ʻano o kēia ʻano ʻano ma lalo o kekahi mahana, kaomi a me ke kahe kahe, ʻo ka mea ʻike like me ka ʻano like ʻole o ke ʻano o ka ʻōnaehana kinoea.

No laila, ma lalo o ke kaomi lewa a me ke kinoea i ana ʻia i ke kahe kūlohelohe, ka hoʻohālikelike ʻana o ka ikaika electromotive a me ka helu o nā mole o ka O.2ʻO ka ʻōnaehana CO e ka sensor zirconia he λ (λ=no2 /nco a i ʻole ka pākēneka leo λ=O2 × V %/OCO × V %) ka pihi hiʻona.

bf 

I ka manawa o ka Pt-Al2O3Hoʻopili ʻia ka catalyst ma 600 ° C, hiki ke hoʻololi piha ʻia ka CO i loko o ka ʻōnaehana aerobic i CO.2, no laila, loaʻa ka oxygen i ke kinoea i ana ʻia ma hope o ka puhi ʻana i ka catalytic.

I kēia manawa, e ana ka sensor zirconia i ka ʻike oxygen pololei. Ma muli o ka pilina o ke kinoea i ana ma lalo o ka hana o ka catalytic combustion, hiki ke ana i ka CO ma loko o ke kinoea ana.

Inā paha ʻo ka neʻe ʻana o ka carbon monoxide i loko o ke kinoea i ana ʻia ma mua o ka catalysis ʻo (CO), ʻo ka ʻike o ka oxygen ʻo A1, a ʻo ka neʻe o ka oxygen i ke kinoea i ana ʻia ma hope o ka catalysis ʻo A, a laila:

bmn

Ma mua o ke puhi ʻana:(CO) A1

Ma hope o ke ahi:O A

A laila:A=A1 – (CO)/2

A:λ =A1 /(CO)

No laila:A=λ ×(CO)-(CO)/2

Ka hopena:(CO)= 2A /(2λ-1)    (λ>0.5)

 df

ʻO ke kumu hoʻolālā o ka O2/CO hulina

ʻO ka O2Ua hana ka probe i nā hoʻololi like ma ke kumu o ka probe kumu e ʻike ai i ka hana hoʻomalu puhi ahi hou.2), no ka mea, ʻo ka carbon monoxide (CO) a me ka hydrogen (H2) noho pū i loko o ke kinoea hoʻoheheʻe piha ʻole.

tyj

ʻO ka probe ka mea kumu e hoʻohana ai i ke kumu electrochemical ma hope o ka hoʻomehana ʻana o zirconia e ʻike i ke ana.

A. O2electrode (platinum)

B. COe electrode (platinum/metala makamae)

C. Hoʻomalu electrode (platinum)

ʻO ka mea nui o ka probe ka zirconia composite sheet i hoʻopaʻa ʻia ma luna o ka paipu corundum e hana i kahi paipu i hoʻopaʻa ʻia a hōʻike ʻia i ke kahawai kinoea flue o ka ʻōnaehana hoʻopau. hoʻonui i ke ola lawelawe.

ʻO nā hana o ka electrode COe a me ka O2Ua like ka electrode, akā ʻo ka ʻokoʻa ma waena o nā electrodes ʻelua ka electrochemical a me nā waiwai catalytic o nā mea maka, i hiki ai i nā ʻāpana hoʻopau i loko o ke kinoea flue e like me CO a me H.2hiki ke ʻike ʻia a ʻike ʻia. Ma ke kūlana o ka hoʻopau piha ʻana, ʻo ka "Nernst" voltage UO2ua hoʻokumu pū ʻia ma ka electrode COe, a ʻo kēia mau electrodes ʻelua i nā ʻano pihi like. I ka ʻike ʻana i ka hoʻopau piha ʻole ʻana a i ʻole nā ​​​​mea hiki ke hoʻopau ʻia, e hoʻokumu ʻia ka UCOe ʻole "Nernst" voltage ma ka electrode COe, akā neʻe kaʻawale nā ​​pihi hiʻohiʻona o nā electrodes ʻelua.

dd

ʻO ka hōʻailona uila UCO/H2ʻO ka mea ʻike holoʻokoʻa ka hōʻailona uila i ana ʻia e ka electrode COe. Aia kēia hōʻailona i nā hōʻailona ʻelua:

UCO/H2(nā mea ʻike holoʻokoʻa) = UO2(maʻiʻo oxygen) + UCO2/H2(nā ʻāpana hiki ke puhi ʻia)

Inā ana ʻia ka ʻike oxygen e ka O2Hoʻokaʻawale ʻia ka electrode mai ka hōʻailona o ka huina sensor, ʻo ka hopena:

UCOe (mea hiki ke puhi) = UCO/H2(nā mea ʻike holoʻokoʻa)-UO2(maʻiʻo oxygen)

Hiki ke ho'ohana 'ia ke kumu ma luna no ka helu 'ana i ka mea puhi kuni COe i ana 'ia ma ka ppm. 'O ka mea 'imi noi'i he 'ano hō'ailona voltage ma'amau. Hō'ike ka pakuhi i ka pihi ma'amau (laina dashed) o ka ho'onui COe i ka emi 'ana o ka oxygen ma loko.

Ke komo ka puhi ahi i kahi i nele i ka ea, ma ka wahi i kapa ʻia ʻo "emission edge", inā lawa ʻole ka ea i ka hoʻopau ʻole ʻana, e piʻi nui ka ʻike COe.

Hōʻike ʻia nā hiʻohiʻona hōʻailona i loaʻa ma ke kiʻikuhi kahakiʻi probe.

dsd

UO2(laina mau) a me UCO/H2(laina kiko).

Ke ʻoi aku ka nui o ka ea a ʻaʻole loa ka puhi ʻana i nā mea COe, ʻo ka hōʻailona UO2a me UCO/H2ua like, a e like me ke kumu "Nernst", ua hōʻike ʻia ka ʻike o ka oxygen i kēia manawa o ke kahawai kinoea flue.

I ka hoʻokokoke ʻana i ka "kaʻe hoʻokuʻu", ʻo ka hōʻailona puʻupuʻu sensor UCO/H2o ka electrode COe e pi'i ana ma ke ano like ole ma muli o ka hoailona COe non-Nernst hou.2a me UCO/H2e pili ana i ka maʻiʻo o ka oxygen i loko o ke kahawai ʻea, hōʻike pū ʻia nā hiʻohiʻona maʻamau o ka mea puhi ahi COe.

Ma kahi o nā hōʻailona uila o nā mea ʻike UCO / H2a me UO2, ʻo nā hōʻailona ʻike ʻano hoʻoikaika ikaika dU O2/dt a me dUCO/H2/dt a ʻoi aku ka nui o nā hōʻailona fluctuation o ka COe electrode hiki ke hoʻohana ʻia e laka i ka "emission edge" o ka puhi ʻana.

(E ʻike i ka “Hōʻā pau ʻole: ke ʻano o ka hoʻololi ʻana o ka uila o COe electrode UCO/H2“)

Nā hiʻohiʻona ʻenehana

Hana hoʻokomo pālua ʻimi: Hiki ke hoʻolako ʻia kahi mea anana me ʻelua probes, hiki ke mālama i ke kumukūʻai hoʻohana a hoʻomaikaʻi i ka hilinaʻi ana.

Nui nā hana puka: Loaʻa i ka mea loiloi ʻelua 4-20mA hōʻailona hōʻailona o kēia manawa a me ka pilina kamaʻilio kamepiula-kamepiula RS232 a i ʻole ke kikowaena pūnaewele RS485. Hoʻokahi kahawai o ka hoʻopuka hōʻailona oxygen, ʻo ke kahawai ʻē aʻe o ka puka hōʻailona CO.

Laulā ana: ʻO 10 ka pae ana o ka oxygen-30i ka 100% oxygen maʻiʻo, a ʻo ke ana ʻana o ka carbon monoxide he 0-2000PPM.

Ka hoʻonohonoho ʻana i ka ʻala:Loaʻa i ka mea anamanaʻo he 1 puka hoʻāla maʻamau a me 3 mau hoʻopuka ala hoʻonohonoho programmable.

 Kalibrasi 'akomi:E nānā ʻokoʻa ka mea anaana i nā ʻōnaehana hana like ʻole a calibrate maʻalahi e hōʻoia i ka pololei o ka anana i ka wā ana.

Pūnaehana naʻauao:Hiki i ka mea anaana ke hoʻopau i nā hana o nā hoʻonohonoho like ʻole e like me nā hoʻonohonoho i koho mua ʻia.

Hōʻike i ka hana puka:He hana koʻikoʻi ko ka mea anamanaʻo o ka hōʻike ʻana i nā ʻāpana like ʻole a me ka hoʻopuka ikaika a me ka hana mana o nā ʻāpana like ʻole.

Hana palekana:Ke pau ka umu ahi, hiki i ka mea hoʻohana ke hoʻomalu i ka hoʻopau ʻana i ka mea hoʻomehana o ka probe e hōʻoia i ka palekana i ka wā e hoʻohana ai.

He mea maʻalahi a maʻalahi ka hoʻokomo:He mea maʻalahi loa ka hoʻokomo ʻana o ka mea anana a aia kahi kaula kūikawā e hoʻopili ai me ka probe zirconia.

Nā kikoʻī

Nā mea hoʻokomo

• Hoʻokahi a ʻelua paha zirconia probe a i ʻole hoʻokahi zirconia probe + CO sensor

• ʻO ke ʻano mea wela a i ʻole ke ʻano ana wela kaʻawale K, R, J, S ʻano

• Hoʻokomo hōʻailona hoʻomaʻemaʻe kinoea kaomi

• Ke koho 'ana i 'elua mau wahie

• Ka hoʻomalu ʻana i ka pahū pahū (pili wale i ka ʻimi wela)

Nā mea hoʻopuka

ʻElua laina laina 4~20mA DC puka hōʻailona (ka hoʻouka kiʻekiʻe 1000Ω)

• Ka laula puka mua (koho)

Hoʻopuka laina laina 0~1% a i 0~100% ʻike oxygen

Huakaʻi logarithmic 0.1 ~ 20% ʻike oxygen

Puka micro-oxygen 10-39i ka 10-1maʻiʻo oxygen

• ʻO ka lua o ka puka puka (hiki ke koho ʻia mai nā mea aʻe)

Maʻiʻo kalapona monoxide (CO) PPM waiwai

ʻO ke kalapona kalapona (CO2)%

Ana kinoea puhi waiwai PPM waiwai

Ka pono puhi

E hoʻopaʻa i ka waiwai oxygen

Waiwai puhi anoxic

Ka wela wela

Hōʻike ʻia nā ʻāpana lua

• Carbon monoxide carbon (CO) PPM

• Hoʻopau kinoea maikaʻi

• E nānā i ka uila puka

• Ka wela o ka probe

• ʻO ka mahana wela

• La mahina makahiki

• Ka haʻahaʻa kaiapuni

• Ka wela o ke au

• Ka hoʻopaʻa ʻana i ka ʻimi

• Ka helu helu hypoxia

• ka manawa hana a me ka mālama ʻana

Kūkākūkā kamepiula/mea paʻi

He awa puka puka serial RS232 a i ʻole RS485 ka mea anaana, hiki ke hoʻopili pololei ʻia i kahi pahu kamepiula a i ʻole ka mea paʻi, a hiki ke ʻike ʻia ka probe a me ka mea kani ma o ke kamepiula.

Hoʻomaʻemaʻe lepo a me ka calibration kinoea maʻamau

He 1 kanal no ka wehe ʻana i ka lepo a me 1 kanal no ka calibration kinoea maʻamau a i ʻole 2 mau kaha no nā relays output calibration gas maʻamau, a me kahi hoʻololi valve solenoid hiki ke hoʻohana ʻia a me ka lima.

Ka pololeiP

± 1% o ka heluhelu oxygen maoli me ka hoʻihoʻi hou ʻana o 0.5%. No ka laʻana, ma 2% oxygen ka pololei ʻo ± 0.02% oxygen.

AlarmP

Loaʻa i ka mea anamanaʻo he 4 mau puʻupuʻu maʻamau me 14 mau hana like ʻole, a me 3 mau mea hoʻolale polokalamu. Hiki ke hoʻohana ʻia no nā hōʻailona hōʻailona e like me ke kiʻekiʻe a me ka haʻahaʻa o ka oxygen maʻi, kiʻekiʻe a me ka haʻahaʻa CO, a me nā hewa ʻimi a me nā hewa ana.

Hōʻike laulāP

Hōʻike 'akomi iā 10-30~100% O2 maʻiʻo oxygen a me 0ppm~2000ppm CO maʻiʻo monoxide.

kinoea kuhikuhiP

Hāʻawi ʻia ka ea ma o ka micro-motor vibration pump.

Mana Ruireqements

85VAC i 264VAC 3A

Ka Mahana Hana

Ka Mahana Hana -25°C a 55°C

ʻO ka haʻahaʻa haʻahaʻa 5% a i ka 95% (ʻaʻole condensing)

Degere o ka palekana

IP65

IP54 me ka pauma ea kuhikuhi kūloko

Ana a me ke kaumaha

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


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