Dab tsi yog qhov ntsuas qhov ntsuas ntawm cov roj combustible?
Qhov kev tshawb nrhiav ntau yam ntawm cov khoom siv hluav taws xob hluav taws xob feem ntau nyob hauv 0-100 feem pua LEL. Yog tias cov pa tawm ntawm cov pa hluav taws xob ntau dua 25 feem pua LEL thiab tsawg dua 50 feem pua LEL, lub tshuab hluav taws xob hluav taws xob yuav ua rau lub tswb qis. Piv txwv li, thaum cov pa tawm ntawm cov pa taws ntau dua 50 feem pua LEL, lub tshuab hluav taws xob hluav taws xob yuav xa tawm lub tswb nrov acousto-optic thiab ceeb toom ntxov los txhim kho kev tswj cov roj hluav taws xob hauv ib puag ncig los ntawm cov tswv teb, yog li raws li kom ua tiav kev nyab xeeb thiab ua haujlwm tau zoo.
Dab tsi yog qhov ntsuas qhov ntsuas ntawm cov roj combustible?
Lub combustible gas detector yuav ntes tau ntau combustible gases, xws li natural gas, liquefied gas, gas, ethane, acetylene, butane, n-butane, isobutane, pentane, hexane, halogenated hydrocarbons (chloromethane, methylene chloride, trichloroethane, vinyl chloride). cawv (methanol, ethanol, propanol), ethers, ketones (butanone, acetone), hydrogen, toluene thiab vinyl chloride.
LEL yog dab tsi?
LEL hais txog qhov txo qis ntawm cov pa roj. Thaum cov roj combustible thiab combustible kua vapor (los yog combustible plua plav) yog tov nrog huab cua thiab ncav cuag ib tug tej yam concentration, nws yuav tawg thaum nws ntsib ib tug hluav taws qhov chaw. Qhov concentration ntau yam uas tuaj yeem tawg tau yog hu ua tawg txwv. Qhov qis dua qhov txwv ntawm txhua qhov roj sib txawv.
Piv txwv li, qhov txwv kev tawg ntawm hydrogen: qhov txwv qis dua yog 4.0 feem pua , thiab qhov txwv sab saud yog 74.2 feem pua. Thaum nws ntsib cua thiab qhib nplaim taws, nws yuav hlawv thiab tawg. 4.0 feem pua yog qhov tsawg tshaj plaws ntim feem ntawm hydrogen thaum nws ntsib cov nplaim taws, uas tsawg dua cov kab hauv qab no. Thaum nws ntsib cov nplaim taws, nws yuav tsis hlawv thiab nws yuav tsis tawg. 74.2 feem pua yog qhov txwv siab tshaj plaws (lossis sab sauv txwv) ntawm feem ntau tshaj plaws. Thaum lub ntim feem ntau siab dua qhov kev txwv saum toj no, nws tuaj yeem raug kub hnyiab thaum nws ntsib cua thiab qhib nplaim taws, thiab yuav tsis muaj qhov tawg. Nyob rau hauv luv luv, thaum lub ntim feem nyob rau hauv qab los yog qis dua qhov kev txwv tsis pub tawg, nws yuav tsis tawg thaum nws ua tau raws li qhov qhib nplaim taws.
Catalytic combustion gas detector yog siv los saib xyuas qhov kev hloov ntawm cov pa roj combustible nyob ib puag ncig huab cua los ntawm {{0}} mus rau 0 ~ 100 feem pua LEL. Lub sensor txais catalytic combustion tshuab, thiab lub sensor tuaj yeem hloov pauv hauv qhov chaw. Lub catalytic combustion sensor muaj lub siab xav teb rau ntau yam ntawm cov nplaim taws. Cov tshuab no muaj universal applicability rau combustible gases.
Combustible gas detector yog ib tug gas detector ntsia thiab siv nyob rau hauv industrial thiab civil vaj tse, uas teb rau cov concentration ntawm ib los yog ntau combustible gases. Cov khoom siv hluav taws xob ntau tshaj plaws yog catalytic combustible gas detectors thiab semiconductor combustible gas detectors.
Semiconductor combustible gas detectors yog siv nyob rau hauv khw noj mov, tsev so, tsev neeg rhiav thiab lwm qhov chaw uas siv roj, natural gas thiab liquefied gas, thiab catalytic combustible gas detectors yog tsuas yog siv nyob rau hauv industrial chaw uas combustible gas thiab combustible chav.
