High-temperature and high-speed metal particle generator

Abstract

A high-temperature and high-speed metal particle generator comprises a combustion chamber, a fuel-rich propellant grain with which an inner cavity of the combustion chamber is filled, an igniter arranged at one end of the combustion chamber and used for igniting the fuel-rich propellant grain, a spraying pipe connected with the other end of the combustion chamber in a sealed manner, and a sealingfilm arranged at the position of a spraying port of the spraying pipe. The work of the high-temperature and high-speed metal particle generator is triggered through connection of an outer power sourceand the igniter, the power source is conducted, the igniter is triggered, a large amount of high-temperature and high-pressure gas or particles are ejected to the surface of a fuel-rich propellant sothat the fuel-rich propellant can be ignited, the fuel-rich propellant is combusted, and high-temperature and high-pressure gas and metal particles are generated; expansion is accelerated after compression is conducted through the spraying pipe, the generated high-temperature and high-pressure gas and the metal particles form hot impacts on the sealing film, the sealing film is burnt through, then the high-temperature and high-pressure gas and the metal particles are sprayed out of the spraying port with a certain speed and a certain angle, a high-temperature metal particle combustion area with a certain distance and an enveloping range is formed, the combustible gas in the combustion area can be immediately ignited, and accordingly explosion hidden danger is eliminated in time.

Description

technical field [0001] The invention relates to a generator, in particular to a generator capable of producing a large amount of high-temperature and high-speed metal particles. Background technique [0002] Most of the launches of large launch vehicles and space shuttles use liquid engines. The fuels of liquid generators mainly include alcohols (methanol, ethanol and isopropanol, etc.), hydrazines (hydrazine, monomethylhydrazine, etc.), hydrocarbons (kerosene, methane, ethane, etc.) and hydrogens (liquid hydrogen), etc. Before the launch, a certain concentration of flammable gas will gather near the launch pad, and if it accumulates to a certain extent, there will be a possibility of explosion, which will become a source of danger during rocket launch. At the same time, in the civilian field, especially in places where gas gathers and where volatile combustible gases gather in chemical plants, timely elimination of gas accumulation can effectively reduce the possibility of...

AI Technical Summary

Problems solved by technology

Most of the existing technologies use rapid flame suppression and explosion suppression devices to eliminate the danger of flammable and explosive places, which can reduce the hazards to a certain extent, but cannot prevent gas explosions

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