Combustible Gas Explosion Hom

Hauv cov huab cua tawg, combustion hom ntawm combustible gases yog ib qho tseem ceeb kom to taub. Cov no muaj xws li qhov tsis tu ncua-siab combustion, tas li-volume combustion, deflagration, thiab detonation.

1. Constant-Pressure combustion:

Hom no tshwm sim nyob rau hauv qhov chaw qhib qhov twg cov khoom combustion tuaj yeem dissipate, tswj equilibrium nrog lub ambient siab. Nws yog txheej txheem ruaj khov, dawb los ntawm lub siab tsis muaj zog, characterized los ntawm ib tug tshwj xeeb ceev ntawm combustion uas nyob ntawm cov roj xa thiab cov tshuaj tiv thaiv tus nqi.

2. Constant-Volume Explosion:

tshwm sim nyob rau hauv ib lub thawv nruj, qhov zoo tagnrho combustion feem ntau pib hauv zos thiab kis mus. Nyob rau hauv xws li ib tug scenario, tawg tsis sib txawv, yuav tsum tau mus kom ze tas mus li. Feem ntau, qhov tawg siab tuaj yeem ua tau 7-9 lub sij hawm thawj zaug siab rau hydrocarbon gas-air sib tov.

3. Deflagration:

Koom nrog gradual nplaim taws acceleration vim raug kaw los yog cuam tshuam, ua rau lub zog nthwv dej. Sib txawv ntawm tas li-siab combustion, lub siab nthwv dej thiab nplaim taws pem hauv ntej txav subsonically. Nws yog ib qho phenomenon nyob rau hauv industrial explosions, feem ntau nthuav tawm cov nthwv dej thiab cov qauv hauv cheeb tsam.

4. Detonation:

Daim ntawv khaus tshaj plaws ntawm cov pa tawg, cim los ntawm supersonic reactive shock yoj. Rau hydrocarbon gas-air sib tov, detonation speeds thiab pressures tuaj yeem loj heev.

Kev nkag siab txog cov qauv no yog qhov tseem ceeb rau kev tiv thaiv kev tawg. Deflagration, tshwj xeeb, tuaj yeem ua rau tsis muaj zog lossis ua kom muaj zog rau hauv qhov tawg hauv qee qhov xwm txheej, yog li kev txo qis yam uas tuaj yeem ua kom cov nplaim hluav taws xob nrawm yog qhov tseem ceeb.