Heat leakage protection device and method for ultra-low temperature cold plate
A protective device and ultra-low temperature technology, applied in the direction of protecting pipelines through thermal insulation, thermal insulation, pipeline protection, etc., to achieve the effects of reducing mechanical heat conduction loss, increasing contact thermal resistance, and reducing weight
Active Publication Date: 2020-01-10
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcomings of the heat leakage protection method for the ultra-low temperature cold plate in the past in a high vacuum environment, thereby proposing a heat leakage protection method for the ultra-low temperature cold plate
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Embodiment Construction
[0036] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0037] see figure 1 , the ultra-low temperature cold plate heat leakage protection structure according to a specific embodiment of the present invention, including a heat shield 1 forming a sealed space, a multi-layer aluminum foil composite airgel heat insulation layer 2, a cold screen 3, a variable density multi-layer 4, and a combined adjustment Mechanism 5, four wires 6, limit ferrule 7 and heat insulating support 9 for supporting the ultra-low temperature cold plate 8, wherein the cold plate 3 is surrounded by a multi-layer aluminum foil composite airgel heat insulation layer 2 completely filled around the insulation Inside the heat shield 1, its shape is made according to the shape of the ultra-low temperature cold plate 8, and the cold plate 3 is completely filled with variable density multi-layer 4, and the multi-layer 4 is provided with an ultra...
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The invention discloses a heat leakage protective device for ultralow temperature cold plates. The heat leakage protective device comprises a heat isolation cover, a heat isolation layer, a cold screen, multiple layers, a combined adjusting mechanism, silk threads, a limiting clamping sleeve and a heat isolation support; the cold screen surrounds the interior of the heat isolation cover through the heat isolation layer, the cold screen is filled with the multiple layers with variable densities, the ultralow temperature cold plates are arranged in the multiple layers, during filling of the multiple layers with variable densities, the high density sides are close to the cold screen, the low density sides are close to the ultralow temperature cold plates, the silk threads are used for assisting the heat isolation support in fixing the ultralow temperature cold plates inside the cold screen. By means of the heat leakage protective device, heat leakage is reduced, the weight is reduced, theusing efficiency of the spacecraft refrigerating capacity is improved, and the running life of an spacecraft is prolonged.
Description
technical field [0001] The invention belongs to the technical field of high-vacuum ultra-low temperature heat leakage protection. Specifically, the invention relates to a heat leakage protection device for an ultra-low temperature cold plate in a high vacuum environment and a heat leakage protection method using the device. Background technique [0002] With the development of deep space exploration and space astronomy technology, more and more ultra-low temperature cold plates with a temperature of 10K and below are used in spacecraft. In space, due to the influence of space thermal environment such as solar radiation, earth infrared radiation, and planetary reflection, it is necessary to solve the problem of heat leakage protection of these ultra-low temperature cold plates, improve its effective cooling capacity, and increase the operating life of spacecraft. [0003] At present, some research work has been done on the heat leakage protection of ultra-low temperature cold...
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IPC IPC(8): F16L59/02
CPCF16L59/02
Inventor 赵月帅邵容平孙立臣孟冬辉孙伟
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG