摘要
本文报导了在1米爆炸泄压试验装置内完成的亚麻尘-空气混合物的一百多次试验结果,试验中研究了亚麻尘浓度,泄压面积(比例泄放比)、点火源位置及能量、泄压口封盖物等因素对泄放爆炸压力的影响。在比例泄放比A/V^(2/3)=0.264,亚麻尘浓度0.080kg/m^3情况下,爆炸压力测得为15kPa,而亚麻尘浓度为0.700kg/m^3情况下,爆炸压力高达33.3kPa,甚至亚麻尘浓度低到0.050kg/m^3时,仍能产生火焰传播。这表明如果厂房不采取合适的措施,亚麻尘爆炸可导致厂房倒塌的破坏。
The results of flax dust-air relief explosion performed in 1.0m3 explosion vent vessel are reported. It is shown that the reduced pressure of flax dust-air relief explosion is related to many factors, such as flax dust concentration.scale vent ratio igniton source location, ignition energy and vent cover. For scale vent ratio A/V2/3 -0.264, flax dust concentration 80g/m3, the reduced pressure measured in 1.0m3 vessel is 15kPa: for flax dust concentration 700g/m3. it is 33.3kPa. It is important that while the concentration of the flax dust is very low. the pressure history of relief explosion is still strong enough to destroy the building.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1991年第1期52-57,共6页
Explosion and Shock Waves
关键词
亚麻尘
爆炸
泄压
flax dust explosion, explosion venting.
