新型栅栏式防爆墙防爆性能优化与试验验证  

Optimization and Test Verification of Explosion-proof Performance of New Fence-type Explosion-proof Wall

作　　者：李佳乐 王永强[1] 李德浩 LI Jia-le;WANG Yong-qiang;LI De-hao(School of Environment and Resources,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学环境与资源学院,绵阳621010

出　　处：《武汉理工大学学报》2024年第11期93-100,共8页Journal of Wuhan University of Technology

摘　　要：采用数值模拟与实验研究的方法对不同形状与排列组合的栅栏式防爆墙抗爆性能展开了研究,首先基于LS-DYNA软件建立不同的栅栏式防爆墙进行有限元数值模拟分析,分析了单层情况下不同柱体形状与不同迎爆面形状的最佳防爆方案。研究发现,等腰直角三角形截面迎爆是单层墙体的最佳防爆设计方案,其次依据单层最佳方案通过不同排列组合构建出多层抗爆墙体,由此组建的多层防爆墙能够达到更好的抗爆性能。其次,在多层墙体防爆情况下,影响防爆效果的主要由墙的层数和组合形式有关。通过结果可知,对整体防爆性能影响比较大的是墙体的迎爆面的形状,栅栏式抗爆墙不仅能与传统防爆强抗爆效果媲美且能节省更多物料,在不同的环境下通过增减层数或长度可定制所需的防护方案。Firstly,based on LS-DYNA software,different fence explosion-proof walls were established for finite element numerical simulation analysis,and the optimal explosion-proof schemes with different cylinder shapes and different explosion-facing surface shapes in the case of single layer were analyzed.It is found that the isosceles right-angled triangular cross-section is the best explosion-proof design scheme for single-layer walls,and secondly,multi-layer explosion-proof walls are constructed through different permutations and combinations according to the best single-layer schemes,and the multi-layer explosion-proof walls can achieve better explosion-proof performance.Secondly,in the case of explosion-proof multi-layer wall,the explosion-proof effect is mainly related to the number of layers and the combination form of the wall.Through the results,it can be seen that the shape of the explosion-proof surface of the wall has a greater impact on the overall explosion-proof performance,and the fence-type explosion-proof wall can not only be comparable to the traditional explosion-proof strong explosion-proof effect but also save more materials,and the required protection scheme can be customized by increasing or decreasing the number of layers or lengths in different environments.

关 键 词：栅栏式防爆墙 数值分析 优化配置 防爆效果 

分 类 号：TS108.6[轻工技术与工程—纺织工程]