Dab tsi yog lub ntsiab combustible gases? Kev phom sij ntawm combustible gas!
Cov pawg hauv qab no suav nrog feem ntau ntawm cov roj combustible:
1. Cov pa roj carbon monoxide: Feem ntau yog tsim los ntawm methane, nws kuj muaj cov kab ntawm butane, pentane, ethane, hydrogen sulfide, carbon dioxide, thiab lwm yam roj.
2. Liquefied petroleum gas: Propane thiab butane yog cov khoom xyaw tseem ceeb. Thaum nws nchuav, cov roj av liquefied tuaj yeem txheeb xyuas los ntawm nws cov ntxhiab tsw txawv. Nws yuav siv ntau cov pa oxygen los txhawb kev combustion thaum LPG hlawv tag nrho.
3. Biogas: Thaum cov organic pov tseg raug cais tawm ntawm huab cua thiab qhov kub thiab txias, av noo, pH, thiab lwm yam tsis tau ntsib, cov kab mob biogas ua kom cov pa taws no. Methane ua rau feem ntau ntawm biogas; cov khoom seem yog carbon dioxide, oxygen, nitrogen, thiab hydrogen sulfide. Muaj li ntawm 30% mus rau 45% carbon dioxide cov ntsiab lus thiab ntawm 55% thiab 70% methane cov ntsiab lus.
4. Gas: Cov ntsiab lus tseem ceeb yog methane, tsis muaj xim, tsis muaj ntxhiab, combustible gas nrog qhov ntom ntom tsawg dua li cov huab cua uas nyuaj rau yaj hauv dej. Nws ua tiav qhov kub thiab txias thiab ua rau tawg hauv ib qho chaw tshwj xeeb thaum ua ke nrog oxygen lossis cua.
5. Coal gas: Cov khoom tseem ceeb muaj xws li hydrogen, carbon monoxide, thiab ntau yam aromatics, alkanes, thiab alkenes.
Cov pa hluav taws xob tshwj xeeb yuav muaj qhov sib txawv me ntsis thiab qhov zoo, yog li thaum ua haujlwm, yuav tsum tau ceev faj ntxiv txog kev nyab xeeb.
Kev puas tsuaj ntawm cov pa hluav taws xob muaj xws li cov ntaub so ntswg ua pa, fainting, tuag tes tuag taw, thiab lwm yam kev raug mob ntawm tus kheej. Cov qe ntshav liab lub peev xwm nqa oxygen tau txo qis thaum cov pa tawm thiab nqus los ntawm tib neeg lub cev. Nws yog ib qho yooj yim rau cov pa roj flammable kom tawg ntawm qhov tshwj xeeb concentration, ua rau muaj kev phom sij txaus ntshai xws li hluav taws kub.
Txhawm rau kom muaj kev nyab xeeb ntau lawm, lub ntsuas hluav taws xob hluav taws xob tuaj yeem ntsia tau los saib xyuas cov roj concentration. Ib puag ncig kev kis kab mob kuj tseem yuav tshwm sim los ntawm cov pa hluav taws xob xau. Raws li qhov tshwm sim, kev soj ntsuam cov roj hluav taws xob ua rau muaj kev tiv thaiv ib puag ncig thiab kev nce qib ntawm kev tsim kho kom ruaj khov. Ua kom tiav cov qauv kev tswj hwm kuj tseem tsim nyog rau kev lag luam thiab kev lag luam.
