Heat-pipe type heat-insulation deflation refrigerator

Abstract

The invention provides a heat-pipe type heat-insulation deflation refrigerator. The refrigerator comprises a distribution valve (2), a regenerator (3), a Simon cavity (4) communicated with the distribution valve (2) and the regenerator (3) through fluid and a hot-end heat pipe (5) and a cold-end heat pipe (6) connected with each other inside the Simon cavity, wherein the hot-end heat pipe (5) and the cold-end heat pipe (6) extend out of the Simon cavity (4); one end of the hot-end heat pipe (5) connected with the cold-end heat pipe (6) is an evaporation end (5a), while the other end is a condensing end (5b); and one end of the cold-end heat pipe (6) connected with the hot-end heat pipe (5) is a condensing end (6b), while the other end is an evaporation end (6a). The heat-pipe type heat-insulation deflation refrigerator utilizes Simon expansion refrigeration principle, combines the unidirectional heat conduction characteristic of heat pipes and thereby realizes periodic air distribution through the distribution valve; furthermore, the refrigerator has the characteristics of low cost, less vibration and noise and compact structure.

Description

Technical field [0001] The invention belongs to the technical field of refrigeration and low temperature, and in particular relates to a heat pipe type adiabatic gas release refrigerator. Background technique [0002] In the current market, most regenerative gas refrigerators adopt the cylinder-piston structure, such as ST, VM, G-M and SV refrigerators. This is because there are two processes of gas compression and gas expansion in one cycle of the refrigerator. In order to obtain the cooling effect, the heat release of the gas compression process and the heat absorption of the gas expansion process must be completed in different spaces or locations. When the movement of the piston in the cylinder and the intake and exhaust are carried out regularly, it can realize the heat release of compression and heat absorption of expansion at different positions of the cylinder. So as to realize the continuous heat absorption and refrigeration in a fixed position of the cylinder, such as th...

AI Technical Summary

Problems solved by technology

As we all know, the cylinder of a cryogenic refrigerator is a very difficult part to process and manufacture, and requires high shape and dimensional accuracy; the piston also requires high behavior and dimensional accuracy to ensure the cooperation with the cylinder; The only key part that isolates and does not leak between the cavities, its material selection, structure and machining accuracy all closely affect its wear degree and the performance of the refrigerator; the piston drive mechanism and the gas distribution mechanism and their matching rules lead to complex structures and high manufacturing costs. improve

These make it difficult for the G-M refrigerator to be miniaturized, and the processing difficulty and manufacturing cost are relatively high. At the same time, it also causes greater noise and vibration when the refrigerator is working, and it is difficult to apply to the cooling of electronic device chips.

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