Dab tsi yog lub hauv paus ntsiab lus sensor zoo rau combustible gas detectors?
Combustible gas detector sensor technology txoj cai kev faib tawm:
1. Semiconductor sensor
Hauv kev lag luam, combustible gas detectors tsis tshua siv lub hauv paus ntsiab lus ntawm semiconductor sensors. Vim tias qhov kev txwv tsis pub tshaj ntawm cov khoom siv hluav taws xob semiconductor combustible gas detector yog tsawg thiab lub neej kev pab yog ntev, thiab tsuas muaj cov pa roj adsorption thiab desorption txheej txheem nyob rau hauv cov txheej txheem nrhiav kom tau, cov roj fumes loj hauv chav ua noj tsis tshua muaj nyob rau saum npoo ntawm cov ntaub ntawv rhiab, uas yuav tsis cuam tshuam rau lub neej ua haujlwm tiag. Ua kom muaj kev cuam tshuam thiab yog qhov kev xaiv zoo tshaj plaws rau lub tswb nrov hauv tsev. Nyob rau hauv tej qhov chaw, nws yog feem ntau yuav tsum tau mus nrhiav tau sai sai thaum lub concentration ntawm combustible gas leakage yog tsawg, thiab nws yog txaus kom paub ib tug taw tes tswb, thiab nws yuav tsum muaj peev xwm ua tau raws li qhov yuav tsum tau ntawm kev saib xyuas mus sij hawm ntev- dawb thiab yooj yim rau siv hauv tsev.
2. Catalytic combustion sensor
Catalytic combustion combustible gas detector yog lub hauv paus ntsiab lus dav siv hauv kev lag luam loj tam sim no. Nws muaj cov lus teb ceev ceev. Txog rau qhov txo qis kev txwv qhov siab (LEL), qhov tso zis ntawm lub sensor yuav luag sib npaug rau cov roj concentration, yog li qhov tseeb thiab rov ua dua tau siab heev. . Yog li ntawd, lub catalytic combustion combustible gas detector yog tsim rau kom muaj nuj nqis nyob rau hauv cov thee mine, roj av, tshuaj lom neeg kev lag luam, roj thiab lwm yam teb. Txawm li cas los xij, kev ua haujlwm kub ntawm catalytic combustion sensors yog siab, thiab cov catalyst tau yooj yim deactivated. Nyob rau tib lub sijhawm, silicone thiab sulfide tso tawm los ntawm cov nplaum thiab cov khoom siv roj hmab hauv ib puag ncig tuaj yeem yooj yim lom cov catalyst thiab ua rau lub sensor tsis ua haujlwm. Nyob rau hauv cov chaw muaj kev lag luam, cov qauv roj feem ntau yog siv los ua kom lub tswb tsis tu ncua thiab kho qhov kev nthuav dav kom tsis txhob muaj qhov rhiab heev ntawm cov catalytic sensor los ntawm kev degrading thiab ua rau muaj qhov tseeb tsawg.
3. Infrared sensor
Lub infrared combustible gas detector siv lub hauv paus ntsiab lus ntawm non-dispersive infrared (NDIR) los ntes hydrocarbon combustible gases nyob rau hauv cov huab cua. Nws muaj qhov zoo ntawm kev xaiv zoo, muaj zog tiv thaiv kev cuam tshuam, thiab tsis yooj yim rau kev lom. Tau ua lub luag haujlwm tseem ceeb hauv kev lag luam kev nyab xeeb thiab kev tshawb nrhiav roj rau ntau xyoo.
4. Electrochemical sensor
Cov khoom siv hluav taws xob hluav taws xob siv hluav taws xob siv lub hauv paus ntsiab lus ntawm electrochemical sensors, uas feem ntau yog siv los ntsuas toxicity, xws li kev tshawb nrhiav cov pa roj carbon monoxide tsawg hauv cov pa roj carbon monoxide thiab tsis tiav combustion. Vim lub siab toxicity ntawm carbon monoxide, lub tswb taw tes feem ntau tsis tshaj 200ppm. Txhawm rau tiv thaiv kev siv tsis raug Alarm lossis xau tswb, combustible gas detector yog qhov zoo tshaj plaws los siv electrochemical gas sensor nrog siab rhiab heev thiab precision.
