Pulse tube refrigerator with cold end gas storage

Abstract

The invention discloses a vessel refrigerator with cold gas tank, which comprises a heat regenerator, layered fluid elements, vessels, the heat exchangers at the cold and hot ends of vessel, and cold and hot gas tanks of vessel. Wherein, said cold gas tank is a chamber through to the cold end of vessel via porous or capillary of wall; the layered fluid elements are distributed just near the capillary or porous; the cold gas tank can generate the quality same to the pressure at the cold end to directly adjust the phase of cold end pressure and weight flow to attain more refrigerate amount; the cold gas tank can be used in gas-tank vessel refrigerator with small holes, the bidirectional gas inlet vessel refrigerator, GM vessel refrigerator and the Stirling vessel refrigerator.

Description

technical field [0001] The invention relates to a low-temperature refrigerator in the technical field of low-temperature refrigeration, in particular to a pulse tube refrigerator with a cold-end gas storage. Background technique [0002] The pulse tube refrigerator uses high and low pressure gas to charge and deflate the cavity of the pulse tube to obtain the cooling effect. It eliminates the low-temperature moving parts of traditional regenerative cryogenic refrigerators, such as Striling and G-M refrigerators, and relies on the reciprocating motion of the gas piston inside the pulse tube to adjust the phase of the mass flow and pressure wave at the cold end of the pulse tube. However, the gas piston movement and the pulse tube pressure are in phase quadrature. According to the phase theory, when the pulse tube cold end pressure and velocity are in phase, the cooling capacity is maximum; when the two are orthogonal (phase difference 90) degrees, the cooling capacity is equa...

AI Technical Summary

Problems solved by technology

The multi-way bypass structure has a similar effect to the two-way intake structure, but it is also limited by the pressure phase difference between the two ends of the resistance element-the small hole or the valve, and the continuous adjustment effect on the cold end phase is limited (but because the two increase the pressure amplitude, so the overall performance is improved compared to the small hole type)

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