A metal-based ignition power device

Abstract

The invention relates to a metal-based ignition power device. The device comprises a barrel-shaped inner shell with a rightward opening and a spray pipe coaxially arranged at the right end hole of the inner shell, wherein a propellant powder column is arranged in the inner shell; an electric igniter facing the propellant powder column is arranged on the spray pipe; the propellant powder column is a metal-based composite solid propellant powder column. A barrel-shaped outer shell with a rightward opening and a spray pipe base sleeved on the spray pipe are also arranged; the outer shell is coaxially sleeved on the outer side of the inner shell so that peripheral walls of the outer shell and the inner shell are in clearance fit with the bottom wall, and the right end of the outer shell is fixedly connected with the left end of the spray pipe base. The metal-based ignition power device has the advantages of simple structure, stable performance, safety and reliability; by adopting the device, combustible gas in a large range can be reliably ignited.

Description

technical field [0001] The invention relates to an ignition device, in particular to an ignition power device capable of producing a large amount of high-temperature and high-speed metal particles. Background technique [0002] In the field of aviation, the current large launch vehicles mainly use liquid engines. Before the engine is started, propellant fuel (combustible gas) is sometimes discharged to the ground launch platform. If it is not eliminated in time, the combustible gas near the launch platform will continue to accumulate. When the accumulated combustible gas reaches a certain concentration, it is easy to There was an explosion, which would have been a source of danger when the rocket was launched. In addition, in the civilian field, especially in places where flammable gases such as gas and chemical plant volatiles tend to gather, it is also necessary to eliminate flammable gases in time to prevent the flammable gases from accumulating to an explosive concentra...

AI Technical Summary

Problems solved by technology

Most of the existing technologies use rapid flame suppression and explosion suppression devices to eliminate danger. Although it can reduce the possibility of combustible gas explosion to a certain extent, it cannot fundamentally eliminate the explosion phenomenon, and its practicability and safety are poor.

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