A heater and its ignition device for detonation combustion research
An ignition device, detonation combustion technology, applied in the direction of combustion engine, engine ignition, forward/reverse ignition, etc., can solve the problems of ineffective measurement of heater pressure temperature, complex ignition and ignition sequence control, etc., and achieve simplified ignition sequence , effective measurement of temperature and pressure, and improved reliability
Active Publication Date: 2019-01-08
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
[0005] In view of this, the first object of the present invention is to provide an ignition device for a heater used in detonation combustion research. Problems of pressure and temperature, the second object of the present invention is to provide a heater for detonation combustion research comprising the above-mentioned ignition device
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Embodiment Construction
[0033] The embodiment of the invention discloses an ignition device for a heater used in detonation combustion research to effectively measure the pressure temperature of the heater.
[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] see Figure 1-Figure 9 , figure 1 It is a schematic diagram of the assembly structure of the ignition device of a specific embodiment of the present invention; figure 2 for figure 1 Schematic diagram of the three-dimensional structure of the middle spark plug; image...
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The invention discloses an ignition device of a knocking combustion research heater. The ignition device comprises a spark plug, a middle shaft column arranged on the outer side of a plug rod of the spark plug in a sleeving manner, and a pressure measurement outer sleeve arranged on the outer side of the middle shaft column in a sleeving manner; a temperature measurement and pressure measurement groove, a temperature measurement through hole and a pressure measurement through hole are formed in the inner wall of the pressure measurement outer sleeve; the temperature measurement through hole and the pressure measurement through hole communicate with the temperature measurement and pressure measurement groove; the temperature measurement through hole is used for containing the temperature measurement device; the pressure measurement through hole is connected with a pressure measurement device; a middle shaft through hole communicating with the temperature measurement and pressure measurement groove is formed in the middle shaft column; and a middle shaft groove communicating with the middle shaft through hole is formed along the inner wall of the middle shaft column, and communicates with a burning chamber of the knocking combustion research heater. The ignition device adopts the spark plug for direct ignition, so that the reliability of ignition is improved, and the time sequence of the ignition is simplified. The holes and the grooves are formed in the middle shaft column of an air collection cavity, the temperatures and pressure can be measured effectively during the ignition, and the ignition device is simple and reliable in structure. The invention further discloses the knocking combustion research heater comprising the ignition device.
Description
technical field [0001] The present invention relates to the technical field of detonation engines, more specifically, relates to an ignition device for a heater used for detonation combustion research, and also relates to a heater for detonation combustion research including the above ignition device. Background technique [0002] The detonation combustion thermodynamic cycle has high efficiency and fast energy release, which is an alternative scheme to improve the combustion mode of supersonic propulsion system. Based on detonation combustion, oblique detonation engines, supersonic pulse detonation engines, etc. have been proposed. Detonation combustion is one of the current research hotspots in hypersonic propulsion systems. The continuous high-enthalpy premixed supersonic flow heater is the key equipment for the ground experiment research of oblique detonation engine and supersonic pulse detonation engine. The research on the mechanism of detonation initiation and develo...
Claims
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IPC IPC(8): F02P17/12F02P5/152
CPCF02P5/152F02P17/12F02P2017/128Y02T10/40
Inventor 陈伟强林志勇梁剑寒周进蔡晓东刘世杰蒋露欣苗世坤
Owner NAT UNIV OF DEFENSE TECH