Regenerator and Pulse Tube Refrigerator Using the Regenerator Structure

Abstract

The invention relates to a novel regenerator and a pulse pipe refrigerator adopting the regenerator structure. The novel regenerator consists of a regenerator pipe, and multiple regenerator filler units arranged in the regenerator pipe at intervals; gaps or porous materials are formed between two adjacent regenerator filler units; the regenerator filler units consist of fillers and separation plates; the separation plates are arranged at intervals; the fillers are filled between the adjacent separation plates; and the fillers are arranged between the separation plates and the regenerator pipe.The invention further provides the pulse pipe refrigerator adopting the regenerator structure. Compared with the prior art, the regenerator reduces nonuniform flowing of gas in each unit and in the whole regenerator, and reduces the problem of low efficiency of the regenerator caused by nonuniform gas currents.

Description

technical field

[0001] The invention belongs to the refrigeration field and relates to a pulse tube refrigerator structure, in particular to a regenerator and a pulse tube refrigerator adopting the regenerator structure. Background technique

[0002] The regenerator is the core component of the pulse tube refrigerator. The longer the regenerator, the greater the resistance. Therefore, in order to avoid the excessive resistance of the regenerator, the length of the regenerator is generally designed to be about 50mm in the industry. , in actual use, the diameter of the regenerator should be increased according to the cooling power. But as the cooling power increases, the aspect ratio of the regenerator becomes smaller, and the regenerator becomes dish-shaped. At this time, another problem faced by the regenerator is the uniformity of the air flow. Therefore, the resistance of the regenerator and the uniformity of the air flow become the main contradiction in the design proces...

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