Non-contact type flexible explosion-proof method and non-contact type flexible explosion-proof device design method

Abstract

The invention discloses a non-contact type flexible explosion-proof method and a non-contact type flexible explosion-proof device design method, and relates to the field of social public security andexplosive disposal. The structure destroying explosion-proof theory is adopted, and in the explosion-proof process, an explosion-proof device is broken up, crushed and flied apart to absorb explodingenergy; multiple nonmetal flexible materials are composited, during explosion-proof operation, an impact wave protection layer is placed on the side close to the explosive, impact wave strength generated by exploding is weakened, and exploding heat is absorbed; a fragment protection layer is placed on the periphery of the impact wave protection layer, impact wave strength is further weakened, andthe fragment speed generated by explosion is weakened; during structural design, on the basis of the design principle of temporal and spatial variation of explosive main loads and non-contact type treatment needs and on the basis of main load decomposing protection size design and the material positioning connection principle of non-secondary-additional-damage needs, the explosion-proof structureis high in explosion protection capacity, small in self weight, flexible in treatment manner, high in safety and free of secondary additional damage.

Description

technical field [0001] The invention relates to an explosion-proof method, in particular to a non-contact flexible explosion-proof method for explosives and a design method for an explosion-proof device. Background technique [0002] Explosion terrorist attacks and explosion-related criminal offenses have become one of the main threats to public security at home and abroad. Explosion terror has the characteristics of concealment, simple implementation, and large-scale damage, and it is easy to cause long-lasting and widespread terror among the public. It has become the most commonly used and most common form of activity by terrorists today. Therefore, it is one of the difficult problems faced by public security departments to counter explosive terrorist attacks in a timely and effective manner and to dispose of various types of explosives. [0003] Traditional explosive ordnance disposal devices are mostly based on a single material (metal alloy and fiber composite material...

AI Technical Summary

Problems solved by technology

[0003] Traditional explosive ordnance disposal devices are mostly based on a single material (metal alloy and fiber composite material) protection method, which has certain shortcomings

The high wave impedance and high strength of metal alloys enable explosive disposal devices such as explosion-proof barrels to have strong protection against shock waves and fragments, but due to the high density, the device's own weight is too large. The contact disposal method has the risk of detonating explosives by mistake. On the other hand, there is also the risk of self-disintegration and secondary fragments due to excessive explosive equivalents.

Explosion-proof fences (blankets) made of high-strength, high-modulus, and low-density fiber composite materials can capture fragments produced by small-equivalent explosives well, and can be disposed of in a non-contact manner by covering the explosives. Cannot weaken the shock wave intensity and fragmentation velocity produced by large-yield explosives

Images