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Self-air-entraining gliding arc plasma jet igniter of concave cavity flame stabilizer and ignition method

A flame stabilizer and plasma technology, applied in the aerospace field, can solve the problems of limited discharge power and so on

Active Publication Date: 2021-08-06
AIR FORCE UNIV PLA
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  • Application Information

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Problems solved by technology

[0004] For a simple sliding discharge igniter, due to the limited discharge power, it cannot meet the ignition requirements under extreme conditions, and it is necessary to further adjust and optimize the structure and parameters of the sliding arc ignition device

Method used

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  • Self-air-entraining gliding arc plasma jet igniter of concave cavity flame stabilizer and ignition method
  • Self-air-entraining gliding arc plasma jet igniter of concave cavity flame stabilizer and ignition method
  • Self-air-entraining gliding arc plasma jet igniter of concave cavity flame stabilizer and ignition method

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Embodiment Construction

[0037] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] The invention provides a self-bleeding air sliding arc plasma jet igniter (hereinafter referred to as "igniter") for a concave cavity flame stabilizer. When igniting, the igniter can switch between two modes of sliding arc ignition and sliding arc strong swirling flame coupling. The sliding arc strong swirling flame coupling mode in the present invention can further overcome the deficiency of low energy when the sliding arc plasma actuator alone is ignited through the coupling amplification effect with the strong swirling flame, optimize the ignition effect, and improve the cavity flame The fire capability of the stabilizer widens the stable working range of the igniter.

[0039] like figure 1 As shown in (a), the igniter has a cylindrical shape as a whole, including an igniter base lower plate 201, an igniter base upper plate 202, an igniter hous...

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Abstract

The invention provides a self-air-entraining gliding arc plasma jet igniter of a concave cavity flame stabilizer. The igniter is cylindrical on the whole and comprises an igniter base lower plate (201), an igniter base upper plate (202), an igniter shell (203), tangential air inlets (204), tangential fuel inlets (205), a high-voltage electrode (206) and a cylindrical electrode insulating base (207). The invention further provides a self-air-entraining sliding arc plasma jet ignition method of the concave cavity flame stabilizer. According to the device and the method, the ignition capacity of the concave cavity flame stabilizer is improved, the stable combustion range of a combustion cavity is widened, the device has the characteristics of simple structure, high stability and the like, further through the coupling amplification effect with strong rotational flow flame, the defect that energy is slightly small when a gliding arc plasma exciter is independently used for ignition is overcome, and the ignition effect is optimized.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a self-bleeding sliding arc plasma jet igniter and an ignition method for a concave cavity flame stabilizer. Background technique [0002] Sliding arc plasma is a non-equilibrium plasma generated by heat loss circulation between two or more diverging electrodes whose distance gradually becomes larger under the action of airflow. [0003] The swirling flame has the remarkable characteristics of flame stability, low lean limit, and many control parameters, and has been widely used in industrial combustion design. The invention patent "An Atomized Flame Nanoparticle Synthesis System Based on Multi-Swirl Enhanced Mixing" (publication number: CN207745881U) that applies swirl stagnation flame to the field of flame synthesis, through the design of two kinds of precursors, tangential and axial The feeding mode realizes the joint adjustment of the swirling gas fuel flame a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C7/266F02K7/14F23R3/28
CPCF02C7/266F02K7/14F23R3/286
Inventor 崔巍吴云贾敏宋慧敏金迪
Owner AIR FORCE UNIV PLA
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