Multi-fragment stopping combustor for combustible cartridge case

Abstract

The invention discloses a multi-fragment stopping combustor for a combustible cartridge case. The multi-fragment stopping combustor for the combustible cartridge case is characterized by comprising a multi-stage spray pipe, a speed control fragment, a pressure control fragment, a body, an ablation cage, a combustible cartridge case piece and a plug; the structure of the ablation cage is adopted, and the combustible cartridge case pieces are placed in the ablation cage, so that most combustible cartridge case pieces after combustion is stopped can be collected, and the sample size is increased; the equal-diameter nozzle structure is adopted, so that the surface appearance of the combustible cartridge case piece can be well preserved; a multi-fragment structure is adopted, and the thickness, the distance and the number of fragments are adjusted, so that the controllability of the movement speed of the ablation cage and the stability of extinguishing in the combustion process can be ensured. The problems of mechanical damage and sample collection when the energetic substance in the combustor is stopped from being sprayed out are solved, and fine diagnosis of the energetic substance combustion process is further improved.

Description

technical field [0001] The invention relates to the technical field of combustible cartridge combustion, in particular to a stop burner, and in particular to a structure with a larger opening size and multiple fragments, which can prevent the structure of the combustible cartridge from being damaged after the pressure is broken through the fragments, thereby Characterize the combustion process of combustible cartridges. Background technique [0002] The stop burner is a pressure vessel with a semi-hermetic structure. When the gunpowder burns in it, the generated pressure reaches the shearing force of the fragments, the fragments are sheared, and the gunpowder is ejected from the nozzle. Due to the sudden pressure relief, The combustion process of the gunpowder is stopped, and the surface morphology of the gunpowder obtained at this time retains the information of the combustion process. Abort burners are generally used to study the combustion process of energetic materials ...

AI Technical Summary

Problems solved by technology

The abort burner is generally used to study the combustion process of energetic materials such as propellants and combustible cartridges. Due to its structural characteristics, when the energetic material is ejected from the semi-closed burner, it is often destroyed by the edge of the nozzle part, resulting in a part of the charge. The granule is the structural form after mechanical damage. On the other hand, the granules are directly sprayed out of the nozzle and hit the ground or wall, and a part of the finally collected granules is damaged due to the impact. Therefore, the existing abort burner has the following problems (1) After the granules are sprayed out of the spout, without effective protection, they directly hit the ground or the wall and are damaged; (2) The diameter of the spout is smaller than that of the semi-closed container, and when the granules are sprayed from the container, the Collision with the shrinking part, the pellets will be mechanically damaged; (3) After the fragments are sheared, the pressure difference is large, the movement speed of the pellets is fast, and the damage caused by the impact is relatively large

However, it is very important to study the combustion characteristics of energetic substances under different pressures. It is impossible to obtain the surface morphology of the pellets after the combustion is terminated through the existing technical means.

[0003] From the technical information retrieved so far, there is no abort burner with a large opening size and a multi-fragment structure to obtain a good surface morphology after the particles are ejected from the nozzle.

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