A kind of thermal insulation door body of ultra-low temperature type cold storage

Abstract

The invention discloses a thermal insulation door body of an ultra-low temperature type cold storage in the technical field of ultra-low temperature cold storage thermal insulation door bodies. The outer wall of the metal plate is fixedly assembled with a sealing metal heat-conducting film, the rear side of the inner side wall of the fixing frame is fixedly assembled with a second heating metal plate, and the front side wall of the second heating metal plate is fixed and assembled with inner polyurethane foam Insulation layer, the front side wall of the foam board is fixedly equipped with an outer polyurethane foam insulation layer, the inner cavity of the inner polyurethane foam insulation layer is fixedly equipped with a thermal insulation filler layer, and the foam board is fixedly equipped with PVC fireproof profiles , The inner cavity of the PVC fireproof profile is equipped with a thermal insulation board, which can achieve multi-layer and multi-stage heat conduction blocking, greatly block the heat transfer, extremely high cold insulation performance, and can accelerate the frost at the gap between the door and the frame. to prevent the door from freezing.

Description

technical field [0001] The invention relates to the technical field of thermal insulation door bodies of ultra-low temperature refrigerators, in particular to a thermal insulation door body of ultra-low temperature type refrigerators. Background technique [0002] The cold storage is a building that uses artificial refrigeration to make a very fixed space reach the specified temperature, which is also very convenient for storing items. During the storage process of the cold storage, due to the requirements of incoming and outgoing goods, the cold storage door needs to be opened frequently, which makes the cold air in the cold storage go out, resulting in energy loss and temperature increase in the storage, which affects the quality of the stored products. Therefore, the cold storage door leakage is solved. It is a technical problem. At present, there are ultra-low temperature cold storages on the market to adapt to the refrigeration of items. The so-called ultra-low temperat...

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Problems solved by technology

[0002] Cold storage is a building that uses artificial refrigeration to make a very fixed space reach a specified temperature, which is also very convenient for storing items. The cold storage door refers to a door that is installed in cold storage equipment, refrigerated warehouses and other freezing environment equipment for thermal insulation and airtightness. During the cold storage process, due to the requirements of incoming and outgoing goods, the cold storage door needs to be opened frequently, so that the cold air in the cold storage goes out, causing energy loss and temperature rise in the storage, which affects the quality of the stored products, so it solves the leakage of the cooling capacity of the cold storage door It is a technical problem. At present, there are ultra-low temperature cold storages on the market to adapt to the cold storage of items. The so-called ultra-low temperature cold storage mainly refers to cold storage with a storage temperature of -70°C to -80°C. The temperature difference between the rooms is very large. If the insulation measures are simply taken in the general cold storage door, the insulation effect in the cold storage will be poor. Difficult to open, for this reason, we propose a thermal insulation door for ultra-low temperature cold storage

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