Lub luag haujlwm ntawm combustible gas detector yog dab tsi?
Combustible gas yog lub xeev ntawm combustible tshuaj. Nws hais txog cov roj uas tuaj yeem sib xyaw nrog huab cua lossis oxygen nyob rau hauv ib qho kev concentration ntau los tsim cov roj premixed. Nws yuav tawg thaum ntsib qhov hluav taws kub, thiab tso tawm ntau lub zog thaum lub sij hawm combustion.
Combustible gas yog cov roj txaus ntshai tshaj plaws nyob rau hauv petrochemical thiab lwm yam kev lag luam. Nws feem ntau yog cov organic gases xws li alkanes thiab qee cov roj inorganic, xws li carbon monoxide, methane, biogas, hydrogen, thiab lwm yam, yog li dab tsi yog lub luag haujlwm ntawm cov khoom siv hluav taws xob? Tom ntej no, cia peb saib nrog tus editor ntawm Honey Iger!
Yuav tsum muaj qee yam xwm txheej rau qhov tawg ntawm cov pa roj, uas yog, ib qho kev sib xyaw ntawm cov roj combustible, qee cov pa oxygen, thiab qhov hluav taws kub uas muaj cua sov txaus los hlawv lawv. Cov no yog peb lub ntsiab ntawm blasting, thiab ib qho yog qhov tseem ceeb. Cov xwm txheej tsis tuaj yeem ua rau hluav taws thiab tawg.
Thaum cov pa roj thiab oxygen sib xyaw ua ke thiab ncav cuag ib qho concentration, lawv yuav tawg thaum lawv ntsib qhov hluav taws kub nrog qee qhov kub. Peb hu cov concentration ntawm cov roj combustible uas tawg thaum nws ntsib qhov hluav taws kub raws li lub blasting concentration txwv, hu ua blasting txwv, uas yog feem ntau qhia nyob rau hauv feem pua. Qhov tseeb, hom kev sib xyaw no tsis tawg ntawm qhov sib xyaw ua ke tab sis muaj qhov sib txawv.
Cov koom haum tso cai thiab cov kws tshaj lij tau txheeb xyuas qhov kev sib tsoo thiab tawg ntawm cov pa hluav taws xob uas pom tau tam sim no, thiab tau teeb tsa qhov kev txwv tawg ntawm cov roj hluav taws xob, uas tau muab faib ua qhov txwv kev tawg (ua luv li UEL hauv lus Askiv) thiab txo qis kev tawg (qis tawg. limit in English). abbreviation LEL).
Hauv qab qhov kev txwv qis ntawm kev tawg, cov ntsiab lus ntawm cov roj combustible hauv qhov sib tov tsis txaus, uas tsis tuaj yeem ua rau combustion lossis tawg; saum toj kawg nkaus txwv, cov ntsiab lus ntawm cov pa oxygen hauv qhov sib tov tsis txaus, thiab tsis tuaj yeem ua rau combustion lossis tawg. combustion thiab tawg ntawm lwm yam combustible gases kuj muaj feem xyuam rau Gas siab, kub, combustion zog thiab lwm yam tseem ceeb muaj feem xyuam rau, thiab qhov tawg txwv feem ntau qhia los ntawm qhov ntim feem pua concentration.
Explosive limit yog lub npe dav dav ntawm explosive low limit and upper explosive limit. Tsuas yog thaum lub concentration ntawm combustible gas nyob rau hauv cov huab cua nyob nruab nrab ntawm qhov tsawg explosive txwv thiab lub sab sauv txwv ntawm tawg yuav tawg tshwm sim. Thaum lub sij hawm ntsuas tawg, lub tswb ceeb toom feem ntau tau teeb tsa hauv qab 25 feem pua LEL ntawm qhov qis qis qis.
Yog li ntawd, thaum lub tswb hluav taws xob hluav taws xob hluav taws xob, koj tsis tas yuav txhawj xeeb txog seb puas muaj kev phom sij. Lub sijhawm no, nws tseem ceeb rau koj kom ua raws li kev ntsuas tam sim, xws li thaiv lub valve lossis tig lub kiv cua hluav taws xob.
