Dab tsi yog lel xa mus rau hauv combustible gas detectors?
Raws li peb txhua tus paub, cov roj hluav taws xob uas tuaj yeem tshawb pom los ntawm cov khoom siv hluav taws xob muaj xws li alkanes (xws li methane, ethane, propane, isobutane, thiab lwm yam), hydrocarbons (xws li polyalkanes), cawv (xws li methanol, ethanol, thiab lwm yam). , aldehydes (xws li formaldehyde, etc.), benzenes (xws li toluene, xylene, thiab lwm yam), acetylene, volatile organic tebchaw, thiab lwm yam. ua lel. Koj puas paub tias lo lus 'le' nyob rau hauv lub combustible gas detector hais txog dab tsi?
Lo lus 'lel' nyob rau hauv combustible gas detectors yog hais txog qhov tsawg explosive txwv ntawm gases, uas yog ib tug technical lub sij hawm rau combustible gases.
Thaum lub concentration ntawm combustible gases nyob rau hauv cov huab cua mus txog nws qis explosive txwv, peb hu ua explosion kev pheej hmoo ntawm combustible gas ib puag ncig nyob rau hauv qhov chaw no 100 feem pua, uas yog 100 feem pua LEL.
Yog tias cov roj combustible tsuas yog nce mus txog 10 feem pua ntawm nws qhov kev txwv qis dua, peb hu rau qhov kev pheej hmoo tawg ntawm cov roj combustible ib puag ncig ntawm qhov chaw no 10 feem pua LEL; Kev saib xyuas cov roj combustible hauv huab cua ib puag ncig feem ntau ncaj qha muab qhov phom sij ntawm cov pa roj combustible ib puag ncig, uas yog qhia raws li feem pua ntawm cov roj combustible hauv huab cua thiab nws qhov kev txwv qis dua: [% LEL].
Thaum cov hluav taws kub hnyiab tau, cov kua hluav taws xob uas muaj hluav taws kub (lossis cov plua plav tawg) tau sib xyaw nrog huab cua thiab ncav cuag ib qho kev xav tau, qhov tawg yuav tshwm sim thaum ntsib qhov hluav taws kub. Qhov concentration ntau yam uas tuaj yeem ua rau tawg yog hu ua qhov txwv tsis pub tawg.
Qhov qis dua qhov txwv ntawm txhua qhov roj sib txawv. Qhov txwv tsis pub tawg ntawm cov pa roj hydrogen: qis dua 4.0 feem pua , qhov txwv siab tshaj 74.2 feem pua , combustion thiab tawg tshwm sim thaum ntsib huab cua thiab qhib nplaim taws. 4%. Yog tias nws tsawg dua cov kab hauv qab no, nws yuav tsis tawg thiab yuav tsis tawg thaum ntsib cov nplaim taws qhib. 74.2 feem pua yog qhov txwv siab tshaj plaws (lossis sab sauv txwv) rau cov khoom ntim siab. Thaum lub ntim feem ntau dhau qhov kev txwv saum toj no, nws tuaj yeem ua kom muaj kev nyab xeeb ntawm huab cua thiab qhib nplaim taws, thiab yuav tsis tawg. Nyob rau hauv luv luv, qhov ntau yam nrog ib tug ntim feem hauv qab no los yog hauv qab ntawm lub tawg txwv yuav tsis tawg nyob rau hauv cov kev tshwm sim ntawm ib tug qhib nplaim taws.
Yog li, koj tsis tas yuav txhawj xeeb txog seb puas muaj kev phom sij thaum twg los xij tom qab lub tswb ntsuas hluav taws xob tawg, vim tias tseem muaj qee qhov kev ncua deb ntawm kev ncav cuag qhov tawg. Ua raws li kev ntsuas tam sim ntawd, xws li qhib lub kiv cua, txiav tawm qee qhov li qub, lossis qhib lub tshuab nqus dej, kom tsis txhob muaj kev pheej hmoo ntawm kev tawg. Tseem muaj qhov sib txawv tseem ceeb ntawm qhov kev txwv qis qis uas muaj qhov muaj peev xwm txaus ntshai thiab muab lub tswb, uas tsuas yog siv lub tswb nrov.
