High-frequency multi-pulse detonation initiation igniter

A multi-pulse and igniter technology, which is used in blasting cylinders, weapon accessories, offensive equipment, etc., can solve the problems of easy damage of ignition and detonation devices and unsuitable occasions for detonation and detonation.

Active Publication Date: 2016-03-23
广东空天科技研究院(南沙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Most of the detonation initiation technologies currently used in engineering are only suitable for a single ignition and detonation process, and are not suitable for occasions with a certain frequency that require continuous detonation initiation
At the same time, in the process of multiple pulse detonation detonation, accompanied by high energy release and high temperature environment, the conventional ignition and detonation device is extremely easy to damage

Method used

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  • High-frequency multi-pulse detonation initiation igniter

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Embodiment Construction

[0019] Such as figure 1 As shown, the igniter of the present invention is a coaxial structure. The outermost layer is a stainless steel sleeve 1, which is used as a discharge negative electrode and connected with the structure of the igniter application occasion. The innermost layer is a copper column 4 made of brass, which is used as the positive discharge electrode, and a thicker ceramic cylinder 3 is used for insulation and isolation between the positive discharge electrode and the negative discharge electrode. The high temperature resistant epoxy resin 5 is used for bonding between the discharge positive electrode and the ceramic cylinder; the high temperature resistant epoxy resin 2 is used for bonding between the discharge negative electrode and the insulating ceramic cylinder 3 . In the embodiment of the present invention, the thickness of the ceramic cylinder 3 is preferably 1-1.5 mm, and the length is preferably 25 mm. The length of the copper column is preferably 2...

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Abstract

The invention discloses a high frequency multi-pulse detonation initiation igniter which comprises a stainless steel sleeve serving as a discharging cathode, a copper column sleeved in the stainless steel sleeve and serving as a discharging anode and a ceramic tube with certain thickness, sleeved in the stainless steel sleeve and located between the stainless steel sleeve and the copper column. The igniter adopts a coaxial igniter structure that the cathode of the stainless steel sleeve is arranged on the outmost layer, the anode of the copper column (brass) is arranged at the center of the inmost portion, the thick ceramic tube is adopted between the cathode and the anode for insulation, and the cathode, the anode and the ceramic tube are connected through high temperature resistant epoxy resin. Due to the fact that the insulation ceramic tube is thick, air media still cannot be broken down under the condition that 4000-6000V voltage is added between the anode and the cathode, and discharge is avoided.

Description

technical field [0001] The invention relates to an ignition technology for gas-phase detonation initiation, in particular to the design of an ignition system in the related experimental research of a pulse detonation thermodynamic device. Background technique [0002] Detonation is a supersonic combustion phenomenon with high exothermic intensity. Compared with conventional combustion, detonation compresses the combustible medium through the shock wave, causing it to undergo a violent combustion chemical reaction, and the heat release of combustion further supports the propagation of the shock wave, forming a self-sustaining detonation combustion wave. [0003] Because detonation has the characteristics of rapid release of fuel chemical energy and is accompanied by the propagation of strong shock waves, it can cause huge damage. A typical example is the gas explosion phenomenon in coal mines. On the other hand, the rapid release of chemical energy and high thermal efficienc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B3/10
Inventor 姜宗林王春赵伟
Owner 广东空天科技研究院(南沙)
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