摘要
为了研究硅酸铝棉对管道内丙烷-空气预混爆燃压力波的影响,本文通过开展丙烷-空气预混火焰在无内衬、内衬硅酸铝棉、内衬实体障碍物和非变截面硅酸铝棉壁面4种管道内的传播试验,并采用压力-冲量准则评价了火焰压力冲击波的危害程度,考察了硅酸铝棉对减轻爆燃压力冲击波危害的作用。结果表明:硅酸铝棉能够减小管道出口压力波的比冲量和DN准数,说明硅酸铝棉对压力波的传播有抑制作用,可降低管道出口处压力波的冲击破坏作用和危害性。
For the purpose of studying the effects of aluminum silicate wool on suppressing the pressure wave of C3H8/Air premixed deflagration,this paper sets up an explosion test pipeline with φ89 mm× 4.5 mm cross-section and carries out comparative experiments in four kinds of pipelines with different inner structures： pipe without inner structure, pipe lined with aluminum silicate wool, pipe lined with entity ob- stacles and pipe with non-variable cross-section and aluminum silicate wool wall structure. It also applies pressure-impulse criteria to evaluating the harmful levels of flame shock and investigates the ability of alu- minum silicate wool on reducing the hazard of explosion shock. The results show that aluminum silicate wool can reduce the specific impulse and dimensionless number of the pressure wave at the outlet, which in- amaglng
出处
《安全与环境工程》
CAS
北大核心
2014年第1期116-119,共4页
Safety and Environmental Engineering
基金
国家自然科学基金项目(50974027)
关键词
管道
爆燃压力波
抑制性能
硅酸铝棉
障碍物
比冲量
DN准数
pipeline
deflagration pressure wave
suppression performance
aluminum silicate wool
entityobstacle
specific impulse
dimensionless number
作者简介
喻健良（1963-）,男,博士,教授,主要从事可燃介质燃爆抑制及泄放方面的研究.E-mail：yujianliang@dl.cn
