Impact decomposition device for thermobaric fuel

Abstract

The invention provides an impact decomposition device for a thermobaric fuel. The device mainly comprises an explosive upper cover, a sealing ring, a fuel container and a gas valve. An isolated structure is adopted, the explosion of an explosive is taken as an impact wave source and a sample fuel is filled in the fuel container; the sealing property is guaranteed via a spiral oblique surface and the sealing ring, the impact decomposition test for the thermobaric fuel can be implemented, and the problems of easy fire spurting, small loading pressure, difficult product characterization and the like in impact decomposition of the thermobaric fuel are solved.

Description

technical field [0001] The invention belongs to the technical field of explosion performance evaluation of propellant and explosives, and relates to a thermal-pressure fuel impact decomposition device. Background technique [0002] Thermobaric fuel is a kind of high-energy fuel with significant afterburning effect used in thermobaric explosive formulations. It has a longer reaction time and higher heat of reaction, and can maintain a high temperature field and At the same time, the fuel will violently consume the oxygen in the diffusion space, causing a suffocation effect, so the thermobaric explosive has higher damage power and effect. At present, the commonly used warm-pressed fuels are mainly high calorific value metal powders such as magnesium and aluminum, magnesium-aluminum alloy powder, boron powder, etc. Temperature-pressurized fuel has the characteristics of high combustion heat and high density, which is conducive to increasing the energy density of explosives and...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above method is that the in-situ method requires an open test site, which increases the test cost and safety protection requirements. At the same time, the in-situ method is the result of the joint action of shock waves, thermal effects, detonation products and other factors, and can only obtain macroscopic performance. parameters, the decomposition properties of the fuel under the action of a single shock wave cannot be obtained, and the fuel residue cannot be collected, so it is difficult to obtain the essential properties of the fuel under the action of a shock wave

When the shock tube method shocks and decomposes solid fuel, it is difficult to form a uniform fuel-air cloud in the spray process, and the temperature field and pressure field of the fuel detonation are quite different.

The impact pressure of the gas-excited shock tube is small, much smaller than the shock wave pressure field where the actual fuel is located, and the decomposition effect on the fuel is poor

When the explosive is excited, the shock tube is mixed with the detonation products of the excitation charge, and it is difficult to collect and characterize the decomposition products of the fuel.

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