Laminated combustion gas transpiration nose cone

A plate-type, nose-cone technology, applied to aircraft parts, fuselage, transportation and packaging, etc., can solve the problems of waste of coolant, heavy gas supply system, large space occupation, etc., to reduce quality, no risk of leakage, save The effect of the occupied space

Active Publication Date: 2018-02-23
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a layered gas sweating nose cone structure for solid medicine gas sweating, using solid medicine gas as the sweating coolant to realize the reasonable distribution of coolant flow, avoid the waste of coolant, and solve the gas supply system at the same time The problem of heavy weight and large space occupation

Method used

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  • Laminated combustion gas transpiration nose cone
  • Laminated combustion gas transpiration nose cone
  • Laminated combustion gas transpiration nose cone

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Embodiment Construction

[0032] Figure 1 to Figure 5 It shows the related structure of a layered gas sweating nose cone of the present invention, specifically, the sweating nose cone includes a layered nose cone structure 1 and a gas generator 2, and the layered nose cone structure 1 includes a hollow circular Shaped bottom platform 11, the top surface of the circular bottom platform 11 is provided with a laminated body 12, the gas generator 2 is installed in the circular bottom platform 11, and the laminated body 12 is composed of multiple pieces with different heights. The ring-shaped sweating laminates 15 with increasing radii and successively decreasing radii are coaxially rotated and superimposed, and the central circular holes of the multiple sweating laminates 15 are stacked in sequence to form a coolant flow channel 17; the surface of the sweating laminates 15 is engraved There are 8 flow channels 16 radially distributed along the sweating laminate, and the 8 flow channels 16 are evenly distr...

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Abstract

The invention discloses a laminated combustion gas transpiration nose cone. The laminated combustion gas transpiration nose cone comprises a laminated nose cone structure and a gas generator, the laminated nose cone structure comprises a hollow circular base frame, the top surface of the circular base frame is provided with a lamination plate laminated body, the gas generator is arranged in the circular base frame, the lamination plate laminated body is obtained through laminating multiple annular transpiration lamination plates with the radius decreasing with the increase of the height, the centers of the multiple transpiration lamination layers are positioned in the same straight line, and the central circular holes of the multiple transpiration lamination plates are sequentially stackedto form a coolant flow channel. The coolant flow in every position of the transpiration nose cone can be reasonably configured according to different cooling demands of the nose cone, so the stability of the transpiration flux of a heated surface is guaranteed, and the waste of the coolant is avoided; and additionally, the solid agent gas generator substitutes a high pressure gas storage tank gassupply system, so the weight and the size of the system are greatly reduced, and the response speed is improved.

Description

technical field [0001] The invention relates to an active thermal protection device for cooling the nose cone of a hypersonic aircraft, in particular to a layered gas sweating nose cone using solid medicinal gas as the sweating coolant. Background technique [0002] When a hypersonic vehicle is working, it will face a harsh aerodynamic heating environment, which will form high heat flow at sharp parts such as the nose cone leading edge and wing leading edge, thereby destroying the leading edge structure. When the flight altitude is 25km, the flight speed reaches Mach 6, and the heat flux density on the leading edge nose cone with a radius of only 1~2mm is as high as 4~5MW / m 2 , the wall temperature is as high as 1600~1900K. In order to prevent the nose cone of the aircraft from being burned due to excessive temperature, it is very necessary to take effective thermal protection measures for key parts such as the nose cone of the aircraft. Sweat-cooled thermal protection is ...

Claims

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Application Information

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IPC IPC(8): B64C1/38
CPCB64C1/38
Inventor 刘伟强沈斌贤刘洪鹏李开尹亮陈海安通姚霄
Owner NAT UNIV OF DEFENSE TECH
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