Vim hais tias ntawm qhov sib txawv ntawm kev kuaj pom gases, cov sensors siv tsis zoo ib yam, thiab txawm tias tib lub roj concentration tuaj yeem kuaj pom los ntawm cov pa roj sensors ntawm cov qauv sib txawv, lossis cov roj tib yam hauv ib puag ncig sib txawv, yuav tsum tau kuaj pom los ntawm cov roj sensors ntawm cov qauv kev tshawb nrhiav sib txawv. paub tseeb tias cov roj concentration. Txhua txoj hauv kev nrhiav kom pom
Qhov zoo thiab qhov tsis zoo ntawm cov pa sensors txawv, thiab tus yuam sij los txiav txim siab lawv qhov zoo thiab qhov tsis zoo yog nyob rau hauv cov yam ntxwv ntawm cov roj sensor nws tus kheej. Infrared gas sensors thiab catalytic combustion sensors yog siv los xyuas cov roj combustible hauv kev lag luam gas detector. Qhov sib txawv ntawm ob yog tias catalytic combustion yog dav siv vim nws tuaj yeem ntes tau txhua yam ntawm cov roj hluav taws xob, thaum lub ntsuas hluav taws xob tsuas yog siv los txheeb xyuas alkanes, yog li ntawd, hauv petrochemical factories, gas pipelines, thee mines thiab lwm lub sijhawm uas alkanes tej zaum yuav tshwm sim, nws yog tsim nyog los siv infrared gas sensors mus ntes roj detectors.
Cov zis hluav taws xob teeb liab ntawm lub catalytic combustion gas sensor yog proportional rau qhov concentration ntawm cov ntsuas combustible gas, uas muaj qhov zoo ntawm me me cuam tshuam los ntawm kub thiab av noo, tsis tshua muaj nqi thiab siab rhiab heev. Nws qhov tsis zoo yog tias nws tuaj yeem ua haujlwm tsuas yog nyob rau hauv ib puag ncig uas muaj cov pa roj tsawg tsawg, nws yooj yim rau kev puas tsuaj hauv cov pa roj carbon monoxide siab, thiab nws muaj feem cuam tshuam rau kev lom los ntawm cov pa roj xws li sulfide, thiab nws qhov kev tshawb pom rhiab heev yuav hloov tas li, yuav tsum tau nquag xoom calibration nrog cov qauv roj.
Thaum kuaj pom alkanes combustible gases, kev siv cov roj infrared sensors muaj qhov zoo heev piv rau catalytic combustion gas sensors:
Infrared gas sensor nrhiav kom tau lub hauv paus ntsiab lus yog kev siv lub cev optics rau roj concentration nrhiav kom tau, yog li tsis zoo li lub catalytic combustion sensor yog txwv los ntawm cov concentration ntawm cov roj ntsuas, qhov ntsuas ntau kuj loj, tsis tsuas yog tuaj yeem ntes cov concentration ntawm alkanes tsawg, tab sis kuj tuaj yeem kuaj pom cov pa roj alkanes combustible siab, txhim kho qhov siv tau ntawm cov khoom siv roj. Nws yog qhov tsim nyog rau kev ua haujlwm hauv cov thee mines, cov raj xa hluav taws xob, cov nroj tsuag tshuaj thiab lwm qhov chaw nyob qhov twg qhov concentration ntawm cov roj hluav taws xob sib txawv sib txawv.
Lub tshuab hluav taws xob infrared siv txoj kev siv kho qhov muag los them nyiaj rau lub teeb ntawm lub teeb, thiab siv cov cuab yeej siv hluav taws xob kub, kom qhov rhiab heev ntawm catalytic combustion sensor yog hloov tas li vim catalyst lom thiab lwm yam tsis zoo. Lub rhiab heev ntawm infrared gas sensor tuaj yeem khaws cia rau lub sijhawm ntev, yog li txo qhov zaus ntawm kev kho thiab tu, tshwj xeeb tshaj yog nyob rau hauv kev xav tau rau lub sijhawm ntev tsis muaj neeg siv lossis tsis yooj yim txij nkawm.
Cov pa roj infrared tsis tas yuav tsum tsis muaj qhov yuav tsum tau muaj rau cov pa oxygen concentration ntawm qhov chaw kuaj, thiab tuaj yeem ua haujlwm ib txwm nyob hauv ib puag ncig anoxic, xws li cov kav dej uas muaj cov pa oxygen tsawg dhau los tsim nyog rau catalytic combustion sensors.
Lub infrared gas sensor yog ib qho kev ntsuas ncaj qha, cov lus teb ceev nrawm dua li catalytic combustion sensor, thiab kev ua haujlwm tau zoo dua.
Lub infrared gas sensor muaj zog tiv thaiv kev cuam tshuam, yuav tsis cuam tshuam los ntawm cov pa roj xws li sulfide thiab ua rau lom, thiab lub neej kev pab cuam ntawm lub infrared gas sensor nyob ntawm lub neej ntawm lub teeb qhov chaw, thiab cov kev pab cuam lub neej yog ntev dua.
Tam sim no, cov khoom siv roj siv hluav taws xob siv hluav taws xob tau siv dav hauv petrochemical, thee thiab lwm yam lag luam ntawm alkane gas detection. Los ntawm kev tsim kho thev naus laus zis thiab kev txhim kho, tus nqi thiab tsis ua haujlwm ntawm infrared sensors kuj raug txo, thiab nws qhov kev cia siab yuav zoo dua thiab zoo dua.