防爆外壳内部结构对爆炸压力的影响

The Internal Structure of the Explosion-proof Enclosure Affect the Explosion Pressure

分析了防爆外壳损坏的原因,比较爆炸压力理论值与实际值的差异。运用Fluent流体软件模拟分析凸形结构与正方形结构爆炸过程,发现凸型结构的爆炸压力比正方型结构大20%。最后,本文提出分腔的建议,修改后的防爆外壳通过防爆试验。

this paper analyzes the damage reasons of explosion-proof enclosure, and compares the difference between the explosion pressure the theoretical value and practical value. The explosion process of convex structure and square structure are simulated and analyzed by using the Fluent software, and it is found that the convex type structure of explosion pressure is 20% larger than the square structure. This is because the convex structure enhances the shock wave on the compression of unburned gas . Finally, this paper recommend Divided chamber , and the modified explosion-proof enclosure explosion-proof test.