Daim ntawv thov scenarios ntawm combustible gas detectors
Raws li lub zog tseem ceeb hauv kev tsim khoom thiab lub neej, cov roj hluav taws xob tuaj yeem pom nyob txhua qhov chaw hauv kev tsim khoom thiab lub neej txhua hnub. Cov pa roj carbon monoxide feem ntau muaj xws li hydrogen, carbon monoxide, methane, propane, ethylene, hydrogen sulfide, thiab lwm yam. Tsis tas li ntawd, ntau cov nplaim hluav taws xob lawv tus kheej yog cov pa phem thiab cov pa phem, xws li carbon monoxide, hydrogen sulfide, chlorine, thiab lwm yam. qee qhov concentration, lawv tuaj yeem tawg thiab ua rau muaj hluav taws kub. Lawv qhov kev kuaj pom yuav tsum muaj kev tshuaj xyuas tshwj xeeb ntawm qhov xwm txheej tshwj xeeb.
Cov xwm txheej sib txawv muaj cov kev xav tau sib txawv rau cov khoom siv roj, thiab lawv kuj muaj cov kev xav tau sib txawv rau lawv cov khoom tseem ceeb - roj sensors. Yuav ua li cas xaiv ib tug haum combustible gas sensor rau peb detector?
Ampal combustible gas sensors mas muaj xws li semiconductor hom, catalytic combustion hom thiab infrared hom, uas yog haum rau combustible gas nrhiav tau nyob rau hauv txawv scenarios.
1 hom semiconductor
Hauv cov chaw hauv tsev, feem ntau nws yuav tsum tau ceev nrooj ntes cov pa hluav taws xob xau thaum cov concentration tsawg, thiab ua tiav ib lub tswb nrov. Nws tseem yuav tsum ua kom tau raws li qhov yuav tsum tau ua kom tsis muaj kev tu ncua ntev thiab yooj yim rau kev siv hauv tsev.
Lub semiconductor combustible gas sensor muaj qhov ntsuas qis dua thiab lub neej ua haujlwm ntev dua, thiab tsuas muaj cov txheej txheem adsorption thiab desorption ntawm cov roj thaum lub sijhawm tshawb nrhiav. Cov pa luam yeeb loj hauv chav ua noj tsis tshua muaj nyob rau saum npoo ntawm cov ntaub ntawv rhiab, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau lub tswb nrov hauv tsev. .
2 Catalytic combustion hom
Lub catalytic combustion gas sensor yog tam sim no siv ntau tshaj plaws nyob rau hauv lub ntiaj teb no. Nws muaj cov lus teb ceev ceev. Txog rau qhov qis qis qis qis qis concentration (LEL), cov zis ntawm lub sensor yuav luag sib npaug rau cov roj concentration, yog li qhov tseeb thiab rov ua dua tau siab heev. Haum rau kev tshawb nrhiav kom muaj nuj nqis hauv cov mines, roj av, tshuaj, roj thiab lwm yam haujlwm.
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, ua rau lub cev tsis ua haujlwm. Hauv cov chaw muaj kev lag luam, lub tswb feem ntau yog ntsuas tsis tu ncua siv cov pa roj carbon monoxide thiab kev hloov kho kom zoo los tiv thaiv qhov rhiab heev ntawm catalytic sensor los ntawm attenuating thiab ua rau muaj qhov tsis zoo ntawm qhov raug.
3 hom infrared
Lub infrared combustible gas sensor siv lub hauv paus ntsiab lus uas tsis yog-dispersive infrared (NDIR) los ntes hydrocarbon combustible gases tam sim no 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 zem, thiab tsis tas yuav rov ua dua tshiab. Nws tau ua lub luag haujlwm tseem ceeb hauv kev lag luam kev nyab xeeb thiab kev tshawb nrhiav roj hauv xyoo tsis ntev los no.
Neuforth Pathfinder Series Gas Detectors
Pathfinder series gas detector yog cov kws tshaj lij thiab cov khoom siv hluav taws xob kuaj pom cov khoom tsim thiab tsim los ntawm Neuforth Technology rau cov neeg siv khoom. Cov khoom no tsuas yog siv los kuaj xyuas cov concentration ntawm cov tshuaj lom neeg, tsim kev puas tsuaj, tawg thiab tawg gases hauv qhov chaw ua haujlwm tsawg.
