Kev tsim kho ntawm qhov tunnels thiab cov yeeb nkab txoj kev hauv tsev yuav ua rau muaj cov pa phem thiab cov pa phem. Cov pa roj no ib txwm yog ib qho teeb meem tseem ceeb hauv kev tsim kho. Cov pa phem thiab cov pa phem hauv qhov av feem ntau suav nrog methane, carbon monoxide, hydrogen sulfide, carbon dioxide, thiab cov kab ntawm nitrogen oxides. Thiab VOC gas.
Raws li lub cev thiab cov khoom siv tshuaj lom neeg ntawm cov roj no, cov pa roj no tau muab faib ua cov pa hluav taws xob thiab cov pa phem. Cov pa taws kub hnyiab hauv qhov av feem ntau yog methane (CH4) thiab qee cov roj hluav taws xob tsis zoo (VOC). Qhov teeb meem tseem ceeb yog tias cov pa roj ntau dhau ntawm tus qauv thiab nws yuav raug tiv thaiv los ntawm kev qhib hluav taws, uas yuav ua rau muaj kev puas tsuaj loj rau cov khoom thiab cov neeg ua haujlwm.
Cov pa roj lom hauv qhov av feem ntau ua rau tib neeg lub luag haujlwm puas tsuaj thiab cuam tshuam rau tib neeg lub neej kev nyab xeeb. Muaj cov pa roj carbon monoxide xws li chlorine, phosgene, sulfur dioxide, nitrogen oxides, ammonia thiab lwm yam. Nws cov yam ntxwv yog tias nws muaj zog stimulating nyhuv ntawm daim tawv nqaij thiab mucous daim nyias nyias, ib co ntawm cov kuj corrosive. Asphyxiating gases xws li cov pa roj carbon monoxide, carbon dioxide, nitrogen, thiab lwm yam, cov roj no tsis muaj kev cuam tshuam rau tib neeg lub luag haujlwm, tab sis lawv tuaj yeem ua rau hypoxia hauv hlwb thiab ua rau lub cev tsis muaj zog.
Yuav ua li cas xaiv lub qhov taub roj ntes?
1. Ua ntej txiav txim siab hom tshuaj lom thiab teeb meem gases hauv lub qhov
Raws li keeb kwm kev paub thiab thaj chaw ib puag ncig, cov pa roj ntau tshaj plaws hauv qhov av yog: carbon monoxide, methane, thiab hydrogen sulfide. Cov pa roj carbon monoxide no yog ob qho tib si tshuaj lom thiab tawg thiab tawg. Nws yog ib qho yooj yim rau peb kom paub meej tias hom roj av detector.
2. Xaiv hom tunnel gas detector
Qhov nrhiav pom feem ntau xaiv lub ntsuas roj ruaj khov. Methane yog ib qho hluav taws kub uas feem ntau pom qhov tawg ntawm methane. Koj tuaj yeem xaiv lub ntsuas roj hluav taws xob nrog ib chav ntawm LEL. Lub tshuab ntes no muaj lub hauv paus ntsiab lus yooj yim, siv dav, thiab tus nqi tu qis. Kuj tseem muaj lub tshuab kuaj xyuas cov pa roj carbon monoxide, lub tshuab kuaj xyuas cov pa roj carbon monoxide, hydrogen sulfide detector, hom kev ntes no yog txhawm rau txheeb xyuas qhov teeb meem rau tib neeg lub cev uas tshwm sim los ntawm cov pa roj ntau ntau. Tsis tas li ntawd, yuav tsum xaiv lub ntsuas pa oxygen kom ntseeg tau tias cov pa oxygen concentration hauv qhov av qis dhau lossis siab dhau.