A Pulse Tube Refrigerator Using Bellows as an Adjustable Air Storage

Abstract

The invention discloses a pulse tube refrigerator using a corrugated pipe as an adjustable air reservoir. The pulse tube refrigerator comprises a compressor, a heat regenerator hot end heat exchanger, a heat regenerator, a heat regenerator cold end heat exchanger, a pulse tube cold end heat exchanger, a pulse tube, a pulse tube hot end heat exchanger and a phase modulation component. The phase modulation component comprises an inertia tube which is communicated with the pulse tube hot end heat exchanger, the corrugated pipe air reservoir which is communicated with the other end of the inertia tube, and a regulating mechanism which is used for regulating the volume of the corrugated pipe air reservoir in real time. According to the pulse tube refrigerator, the corrugated pipe is used as the adjustable air reservoir so that the volume of the air reservoir can be regulated manually or automatically in real time, refrigerating capacity maximization of the pulse tube refrigerator is achieved in the cooling process, and thus the refrigerator can be cooled quickly. With respect to the adjustable air reservoir working at a low temperature, inconvenience brought about through extra air supply can be reduced by regulating the volume of the air reservoir. In addition, due to the adjustable air reservoir, workers can conduct performance optimization study of the refrigerator in the operating process conveniently.

Description

technical field [0001] The invention belongs to the technical field of pulse tube refrigerator design, and in particular relates to a pulse tube refrigerator using bellows as an adjustable gas storage. Background technique [0002] The pulse tube refrigerator is a relatively new type of cryogenic refrigerator among small cryogenic refrigerators, which was first proposed by Professor Gifford and Longswoth in the United States. Since the pulse tube refrigerator has no moving parts at low temperature, it is expected to become a low-cost, low-vibration, stable and reliable long-life cryogenic refrigerator. Especially with the proposal and successful application of phase modulation structures such as small hole gas storage, two-way air intake, and inertial tubes, the cooling temperature of pulse tube refrigerators has been continuously reduced, and the cooling capacity and cooling efficiency have also been greatly improved. It has been used in superconducting devices and infrared...

AI Technical Summary

Problems solved by technology

However, this document only solves the technical problem of making the whole system compact and reducing the charge of working fluid

For the technical problem of how to increase the cooling capacity of the refrigerator and achieve rapid cooling by improving the gas storage during the cooling process of the refrigerator, no technical solution was mentioned

At the same time, the device cannot realize real-time adjustment of the volume of the gas storage

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