Explosion protection structure and method based on momentum deflection

Abstract

The invention discloses an explosion protection structure and method based on momentum deflection. According to the explosion protection structure and method, deflectable mass blocks are introduced into conventional explosion-proof equipment, so that a centripetal force is introduced in the explosion process, the momentum direction of the mass blocks is changed, and momentum is harmless; and meanwhile, the centripetal force can apply a downward acting force to the protection equipment, so that the protection equipment is prevented from jumping upwards. The protection structure and method are provided based on physical laws and material / structural mechanical analysis, and therefore the safety of the protection equipment and the reliability of fragment protection can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of explosion protection, in particular to an explosion protection structure and method based on momentum deflection, which is suitable for police, military and public safety explosion protection. Background technique [0002] In recent years, bombing and terrorist attacks have occurred frequently in the world, posing a huge threat to the safety of people's lives and property. In order to reduce the hazards of explosives to surrounding personnel and facilities, explosion-proof retaining walls for blocking bomb explosions or explosion-proof containers for disposing of suspected explosives are often built in public places. [0003] In order to improve the mobility of these explosion-proof equipment, the current structural design tends to be lightweight. Although explosion-proof equipment based on lightweight structure has the advantages of good mobility and fast emergency response, it has the following two sho...

AI Technical Summary

Problems solved by technology

Although explosion-proof equipment based on lightweight structure has the advantages of good mobility and fast emergency response, it has the following two shortcomings: (1) Explosion-proof equipment will extract more kinetic energy under the action of explosive load due to the decrease in mass, and extract more kinetic energy Although it is beneficial to weaken the explosion load, some fragile explosion-proof structures will produce many high-speed flying fragments. These fragments may not be lethal due to their low density, but they will still release potentially secondary harmful impulses to the surrounding environment; (2) Explosion-proof equipment tends to jump upwards under the action of explosive load, thereby forming a fragment protection gap at the bottom of the equipment, and then fragment leakage occurs; this danger is particularly obvious when the explosive is located on the ground. Some explosion-proof equipment such as fiber composite materials Most explosion-proof fences are designed with inner and outer fences to deal with jumping problems, but this separate structure will slow down the emergency response speed

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