Insulation structure for high and low temperature environment simulation test chamber

Abstract

The invention discloses a thermal insulation structure for a high-low temperature environment simulation test box. The high-low temperature environment simulation test box comprises an inner chamber, the thermal insulation structure and an outer frame from inside to outside, the inner chamber is provided with a bottom wall, vertical walls and a top wall, the thermal insulation structure comprises a first thermal insulation structure, the first thermal insulation structure comprises a reinforced concrete base layer, a thermal insulation glass brick layer, a stainless steel flat plate and an asbestos cloth layer which are sequentially overlapped, and the first thermal insulation structure is arranged on the bottom wall of the inner chamber. The thermal insulation structure is simple in structure, convenient to construct and capable of meeting work requirements of the high-low temperature environment simulation test box.

Description

technical field [0001] The invention relates to a high and low temperature environment simulation test box, in particular to a thermal insulation structure for a high and low temperature environment simulation test box. Background technique [0002] The reliability test of spacecraft electronic and electrical products in the space environment requires more and more environmental simulation test equipment of various types and scales. Among them, the high and low temperature environment simulation test box is a relatively important environmental simulation equipment. The thermal cycle test is carried out on the specimen in the high and low temperature environment simulation test chamber, and the potential quality defects of the specimen are found by simulating the large temperature difference shock environment in space, which provides a reference for the improved design of the specimen. [0003] In order to ensure that the high and low temperature environmental test chamber ca...

AI Technical Summary

Problems solved by technology

However, due to the porous and loose structure of pearlite, it has high absorptivity to air and moisture, and the water content has a great influence on the thermal insulation performance of pearlite

After several tests in the above-mentioned specific high and low temperature test chamber, the pearlite sand absorbed water, pulverized, agglomerated, and settled, and the thermal insulation performance dropped significantly, which affected the normal operation of the test chamber

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