摘要:
The present invention discloses a heat-actuated double-acting traveling-wave thermoacoustic refrigeration system, comprising at least three elementary units; each elementary unit comprises a thermoacoustic engine, a thermoacoustic refrigerator, and a resonance device; the thermoacoustic engine and the thermoacoustic refrigerator comprise a main heat exchanger, a heat regenerator, a non-normal-temperature heat exchanger, a thermal buffer tube, and an auxiliary heat exchanger connected in sequence; the resonance device comprises a sealed housing, a moving part is provided in the housing for a reciprocating motion; the moving part separates the housing into at least two chambers; the main heat exchanger and auxiliary heat exchanger of each thermoacoustic engine and thermoacoustic refrigerator respectively connects to chambers of different housing, forming dual-loop structure of gas medium flow. In heating the non-normal-temperature heat exchanger of the thermoacoustic engine to produce acoustic power, thermoacoustic energy conversion is induced inside the thermoacoustic engine and the thermoacoustic refrigerator.
摘要:
A cryocooler includes a shell, a compression unit, an expansion unit and a vibration damping unit, where a cavity is provided in the shell; the compression unit and the vibration damping unit are located in the cavity; the compression unit is connected to the shell; the expansion unit is partially located in the cavity and communicates with the compression unit; the vibration damping unit is sleeved on the compression unit and is partially located in the compression unit and is configured to reduce vibration of the compression unit. The cryocooler has a relatively compact structure, relatively small size and relatively small weight.