Unlock instant, AI-driven research and patent intelligence for your innovation.

High-temperature heat shield based on phase change heat storage and aircraft nozzle assembly

A phase-change heat storage and heat shield technology, which is applied in the directions of thermal protection devices, machines/engines, and jet propulsion devices of aerospace vehicles, can solve problems such as the inability to meet the long-term stable operation of aircraft, and achieve long-term stable operation. , Improve the working environment and reduce the effect of heat conduction

Pending Publication Date: 2022-07-15
THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a high-temperature heat shield and aircraft nozzle assembly based on phase change heat storage to solve the problem that the purely passive heat shield structure such as airgel material or interlayer combination in the related art cannot meet the long-term requirements of the aircraft. job stability problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature heat shield based on phase change heat storage and aircraft nozzle assembly
  • High-temperature heat shield based on phase change heat storage and aircraft nozzle assembly
  • High-temperature heat shield based on phase change heat storage and aircraft nozzle assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 As shown, Example 1 of the present application provides a high-temperature heat shield based on phase-change heat storage, which includes an aerogel layer 3 and a phase-change heat storage encapsulation layer that are sequentially distributed and connected along the nozzle 1 to the cabin section 2 4. The phase change heat storage encapsulation layer 4 includes an encapsulation shell 40 and a phase change energy storage material 41, and the encapsulation shell 40 has a accommodating cavity; the phase change energy storage material 41 is filled in the accommodating cavity; and, the aerogel layer 3 The thickness is adapted so that after the heat source of the nozzle 1 is insulated by the aerogel layer 3 , the heat transferred to the phase change heat storage encapsulation layer 4 reaches the phase transition temperature of the phase change energy storage material 41 .

[0038] The radiation temperature of a large area of ​​nozzle 1 of an aircraft reaches more ...

Embodiment 2

[0055] see figure 2 As shown, the embodiment of the present application provides an aircraft nozzle assembly, which includes a nozzle 1, a cabin section 2 and a high-temperature heat shield based on phase change heat storage, and a thermal insulation is formed between the cabin section 2 and the nozzle 1 Space, a high-temperature heat shield based on phase change heat storage is installed in the heat insulating space.

[0056] Insulation between the nozzle 1 and the cabin section 2 of the aircraft nozzle assembly of Example 2 of the present application is performed by a high temperature heat shield based on phase change heat storage, and the high temperature heat shield based on phase change heat storage uses aerogel and In the technical scheme of combining phase change energy storage materials, the aerogel layer 3 isolates and blocks a large amount of heat generated by the nozzle 1 as much as possible, and by designing the thickness of the aerogel layer 3, the heat source of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high-temperature heat shield based on phase change heat storage and an aircraft spray pipe assembly, and relates to the technical field of aerospace craft design, the high-temperature heat shield comprises an aerogel layer and a phase change heat storage packaging layer which are sequentially distributed from a spray pipe to a cabin section and connected, and the phase change heat storage packaging layer comprises a packaging shell and a phase change energy storage material; an accommodating cavity is formed in the packaging shell; the accommodating cavity is filled with the phase change energy storage material; and the thickness of the aerogel layer is adapted as follows: after a heat source of the spray pipe is subjected to heat insulation through the aerogel layer, heat transferred to the phase change heat storage packaging layer reaches the phase transition temperature of the phase change energy storage material. The aircraft spray pipe assembly comprises a spray pipe and a cabin section, and a heat insulation space is formed between the cabin section and the spray pipe; and the high-temperature heat insulation cover is arranged in the heat insulation space. The aerogel layer isolates and blocks a large amount of heat generated by the spray pipe, the phase change energy storage material absorbs heat and stores energy, the heat entering the cabin section is greatly reduced, the important single-machine working environment in the cabin section is improved, and long-time stable work of the aircraft is achieved.

Description

technical field [0001] The present application relates to the technical field of aerospace vehicle design, and in particular, to a high-temperature heat shield and an aircraft nozzle assembly based on phase-change heat storage. Background technique [0002] The aircraft flies at high speed in the atmosphere for a long time, and the total heating capacity of the external aerodynamic heating reaches gigawatt level. At the same time, the temperature of the large-area outer wall of the built-in nozzle reaches more than 1000 °C for a long time. Under the constraints of the compact space layout, the internal space temperature and single aircraft Thermal management is one of the core elements that restrict the design of aircraft, and the cabin where the nozzle is located is generally integrated with an important stand-alone aircraft, which plays a pivotal role in the control of the aircraft. , which puts forward higher requirements for the overall mechanical properties, heat resist...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/58F02K1/82
CPCB64G1/58F02K1/822
Inventor 毛靖刘利宏涂正光王辉徐文博毛金娣高旭王源杰单华伟吴继华沙训林雪峰贾湘婷张凯张道毅
Owner THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD