Combined supporting and absorbing device and low-temperature multilayer heat insulating vessel having same

Abstract

The invention discloses a combined supporting and absorbing device and a low-temperature multilayer heat insulating vessel having at least one combined supporting and absorbing device. The combined supporting and absorbing device comprises a cover body, a porous baffle plate, a supporting mechanism and a low-temperature absorbent, wherein one end of the cover body is closed and the other of the cover body is open; the porous baffle plate is arranged at the opening end of the cover body and is provided with an opening; one end of the supporting structure passes through the opening of the baffle plate, and extends into and fixed in the cover body; and the low-temperature absorbent is filled in a space defined by the cover body and the baffle plate around the supporting structure. The combined supporting and absorbing device of the invention supports the inner and outer walls of the vessel and absorbs the gas in the interlayer of the vessel, thereby reducing the number of additional structures in the vessel and the number of the holes on the inner wall of the vessel and improving the structural strength of the vessel.

Description

technical field [0001] The invention relates to a low-temperature multi-layer thermal insulation container, in particular to a combined support adsorption device for the low-temperature thermal insulation container, and a low-temperature multi-layer thermal insulation container with the combined support adsorption device. Background technique [0002] A low-temperature heat-insulated container for loading a low-temperature medium is usually provided with an inner and an outer container wall, so that a sandwich structure is formed between the inner and outer walls. Existing heat insulation methods for cryogenic heat insulation containers mainly include vacuum multi-layer heat insulation and vacuum powder heat insulation. The interlayer thickness (about 75mm) of the container adopting vacuum multilayer insulation is much thinner than that of the container adopting powder insulation (about 200-300mm). It can be seen that the cryogenic insulation container using vacuum multilay...

AI Technical Summary

Problems solved by technology

In addition, for each of the cryogenic adsorption device and the support structure, it is necessary to open holes on the inner or outer wall of the container, and the greater the number of openings, the less likely it is to maintain the vacuum in the interlayer

[0011] for figure 1 In the shown structure, each of the low-temperature adsorption device 16 and the supporting structure 17 needs to be opened on the inner wall, which will affect the overall structural strength of the inner wall; moreover, an inwardly protruding cover needs to be provided at each hole. body, thus reducing the volume of the inner container

[0012] for image 3 In the structure shown, since the outer wall is provided with an outwardly protruding cover 231, the overall size of the container 20 will be increased, resulting in a low safety factor during transportation and easy bumping to form a safety hazard

In addition, the protruding cover increases the difficulty of vacuuming the interlayer, and the cover is likely to cause vacuum leakage after being bumped

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