Effect of initial temperature and initial pressure on vapor explosion characteristics of nitro-thinner

Abstract This article uses the combustible vapor explosion characteristic test device (NEU-G-EL) to study the explosion characteristics of nitro-thinner under the conditions of different pressure and temperature. The experimental results showed: The L LEL (Lower Limit of Explosion) of vapor explosion of nitro-thinner was between 1.0% and 4.0%, while the L UEL (Upper Limit of Explosion) was between 4.5% and 10.0%, and the △L(Range of Explosion Limit) was between 3.5% and 8.0%. The L LEL , L UEL , △L and the (△P) max (maximum over-pressure) will increase with the increase of the initial pressure, and the (△P) max of Nitro-thinner vapor explosion will decrease with the increase of the initial temperature.