Seal structure for ultralow temperature environment simulation equipment door

Abstract

The invention relates to the technical field of testing equipment, in particular to a seal structure for an ultralow temperature environment simulation equipment door. An equipment box wall and an equipment large door are included. An external-use type silica gel seal strip, a medium-temperature type silica gel seal strip, a door edge temperature-resistance device and a box wall temperature-resistance device are arranged between the equipment box wall and the equipment large door sequentially from outside to inside. The equipment box wall is provided with a temperature control heating tape arranged between the external-use type silica gel seal strip and the medium-temperature type silica gel seal strip. The equipment large door is provided with a temperature measurement probe in signal connection with a controller. According to the seal structure, a layering thermal insulation mechanism is designed at the seal position of the ultralow temperature simulation environment testing equipment large door, thus cooling capacity is decreased effectively step by step during exchange with the outside, an insulating layer is provided with a temperature probe used for detecting the temperature after insulating, after analysis through the controller, then whether temperature compensation is conducted is controlled, and the service life of equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of test equipment, in particular to a door sealing structure of an ultra-low temperature environment simulation equipment. Background technique [0002] With the development of the economy and the improvement of research and development capabilities, more and more scientific research institutions, aerospace and military fields have attached importance to ultra-low temperature environment simulation experiments. Therefore, minus 196 degrees Celsius has become an important indicator for over-temperature environmental simulation tests. Common environmental simulation equipment uses silicone rubber as the sealing material, and is designed into different styles to enhance the sealing effect. However, due to the limitations of the material's own properties, it is different from Surface hardening occurs when the contact temperature of the simulated environment exceeds -70°C, and gradually breaks and loses the seali...

AI Technical Summary

Problems solved by technology

Therefore, minus 196 degrees Celsius has become an important indicator of an over-temperature environment simulation test. Common environmental simulation equipment uses silicone rubber as the sealing material, and is designed into different styles to enhance the sealing effect. However, due to the limitations of the material itself, it is different from the Surface hardening occurs when the contact temperature of the simulated environment exceeds -70°C, and gradually breaks and loses the sealing effect. For a long time, researchers have been exploring new low-temperature resistant materials, but so far there is no suitable flexible sealing material in the market that can be directly contacted. Simulated environment at -196°C

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