Integrated machine heat insulation device based on nanometer aerogel

Abstract

The invention provides an integrated machine heat insulation device based on nanometer aerogel. The integrated machine heat insulation device comprises a plurality of integrated machine heat insulation plates based on the nanometer aerogel. The integrated machine heat insulation plates based on the nanometer aerogel comprise upper insulation plate skin, lower insulation plate skin, structural supporting rod parts and nanometer aerogel insulation plates, and the nanometer aerogel insulation plates are arranged between the upper insulation plate skin and the nanometer aerogel insulation plates and between the lower insulation plate skin and the nanometer aerogel insulation plates. The nanometer aerogel insulation plates are arranged, the structures of the skin, the structural supporting rod parts and the like are used for bearing force, instrument installation plates and insulation layers are integrated, the good insulation performance is achieved, and the obvious weight reducing effect is achieved. The integrated machine heat insulation device is simple in structure, reasonable in layout and wide in application range.

Description

technical field [0001] The present invention relates to a thermal insulation device, in particular to a nano-aerogel-based electromechanical integrated thermal insulation device for thermal control of a probe in a near space. Background technique [0002] CO on the surface of Mars 2 Atmospheric, 2-20m / s wind speed, temperature range -130°C to +30°C; the adjacent space is 20-100km above sea level, due to the unique environmental factors such as temperature and air pressure in the adjacent space (take a distance of 20km from the ground as For example, the air pressure is about 5.5kPa, and the temperature is about -57°C). Compared with the spacecraft outside the atmosphere, there are many ways of heat exchange between the Mars landing probe and the near space probe and the external environment. Requirements, considering the limited weight and energy of the detector, its light and efficient thermal insulation device is very important. However, in the thermal environment with g...

AI Technical Summary

Problems solved by technology

However, due to the low strength and high brittleness of airgel, it is difficult to use it alone as a block insulation material in engineering

In the airgel preparation process, the introduction of reinforcements for reinforcement and toughening can improve the mechanical properties of the airgel to a certain extent, but if sufficient mechanical properties are to be ensured, more reinforcements need to be introduced, and the reinforcement itself Higher thermal conductivity increases the solid-phase heat conduction of the material, resulting in less effective insulation

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