Dab tsi ntawm lub tswv yim sensor ua haujlwm zoo tshaj plaws rau cov khoom siv hluav taws xob hluav taws xob?
Kev sib xyaw sensor yog qhov tseem ceeb ntawm cov khoom siv hluav taws xob hluav taws xob. Feem ntau muaj plaub hom kev ntes: infrared, electrochemical, thiab semiconductor, nyob ntawm seb lub hauv paus ntsiab lus. Cov txheej txheem ntau yam kuj tseem siv rau qhov chaw ua kom pom cov pa taws. Dab tsi ntawm lub hauv paus ntsiab lus sensor yog li tsim nyog rau cov khoom siv hluav taws xob hluav taws xob? Yog xav paub ntxiv txog nws, ua raws li Shenzhen Guoan!
Combustible gas detector sensor technology txoj cai kev faib tawm:
Sensor ua los ntawm semiconductors
Combustible gas detectors nyob rau hauv kev lag luam hardly puas tau ua hauj lwm nyob rau hauv txoj kev xav ntawm semiconductor sensors. Cov pa roj hnyav los ntawm chav ua noj tsis tshua muaj nyob rau ntawm qhov chaw ntawm cov ntaub ntawv rhiab vim tias cov khoom siv hluav taws xob semiconductor combustible gas detector muaj qhov txwv tsis pub pom, lub neej ua haujlwm ntev, thiab tsuas yog cov roj adsorption thiab desorption txheej txheem koom nrog hauv cov txheej txheem tshawb nrhiav. Yog li ntawd, lub neej kev pab cuam tsis cuam tshuam. yog qhov zoo thiab qhov kev xaiv zoo tshaj plaws rau lub tswb nrov hauv tsev.Hauv tsev, nws yog ib qho tsim nyog yuav tsum tau txheeb xyuas tam sim ntawd thaum lub ntsiab lus ntawm cov pa taws hluav taws xob tsawg, thiab nws txaus kom paub txog ib qho kev ceeb toom. Nws kuj yuav tsum muaj peev xwm ua tau raws li qhov yuav tsum tau ua ntawm kev saib xyuas mus sij hawm ntev-dawb thiab siv tau rau kev siv hauv tsev.
2. Lub sensor rau catalytic combustion
Lub hauv paus ntsiab lus uas tam sim no feem ntau siv nyob rau hauv lub lag luam tseem ceeb yog lub catalytic combustion combustible gas detector. Nws teb nrog xob laim ceev. Cov zis ntawm lub sensor yog ze li ntawm proportional rau cov roj concentration mus rau qhov qis tawg txwv concentration (LEL), uas ua rau cov neeg siab heev thiab repeatability. Lub catalytic combustion combustible gas detector yog li tsim nyog rau kev tshawb nrhiav kom muaj nuj nqis hauv cov thee mine, roj av, tshuaj lom neeg kev lag luam, roj, thiab lwm qhov chaw. Txawm li cas los xij, lub catalyst tsuas yog disengaged, thiab catalytic combustion sensor muaj qhov kub thiab txias. Nyob rau tib lub sijhawm, silicone thiab sulfide tso tawm rau hauv huab cua los ntawm roj hmab thiab cov ntaub ntawv nplaum tuaj yeem yooj yim lom cov catalyst, rhuav tshem lub sensor.In thiaj li tiv thaiv lub rhiab heev ntawm catalytic sensor los ntawm deteriorating thiab ho txo qhov raug, cov qauv roj feem ntau yog siv los calibrate. lub tswb thiab kho qhov magnification tsis tu ncua nyob rau hauv industrial chaw.
3. lub koob yees duab thermal
Lub tswvyim uas tsis yog-dispersive infrared (NDIR) yog siv los ntawm infrared combustible gas detector los txheeb xyuas hydrocarbon flammable gases nyob rau hauv cov huab cua. Nws tau txais txiaj ntsig los ntawm kev xaiv zoo, muaj zog tiv thaiv kev cuam tshuam, thiab tiv thaiv kev lom. tau ntau xyoo tau muaj kev cuam tshuam loj rau kev nyab xeeb thiab kev tshawb nrhiav roj.
Electrochemical sensor, tooj 4,
Lub tshuab hluav taws xob siv hluav taws xob siv los ntawm lub tshuab hluav taws xob hluav taws xob, uas feem ntau pom cov pa roj carbon monoxide tsawg hauv cov roj hluavtaws thiab tsis tiav combustion, yog raws li lub hauv paus ntsiab lus ntawm electrochemistry. Vim yog cov pa roj carbon monoxide toxicity, qhov taw tes ceeb toom feem ntau tsis tshaj 200 ppm. Cov khoom siv hluav taws xob hluav taws xob ua haujlwm tau zoo tshaj plaws thaum nruab nrog cov hluav taws xob hluav taws xob hluav taws xob uas muaj cov qib siab ntawm cov rhiab heev thiab qhov tseeb kom tsis txhob muaj lub tswb cuav lossis lub tswb nrov.
