Stirling cryocooler capable of improving cooling efficiency

A technology of cooling efficiency and refrigerators, which is applied in the direction of refrigerators, refrigeration and liquefaction, compressors, etc., and can solve the problem of low refrigeration efficiency

Pending Publication Date: 2021-05-11
HANGZHOU HANGYANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the COP of Stirling refrigerators is gen...

Method used

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  • Stirling cryocooler capable of improving cooling efficiency
  • Stirling cryocooler capable of improving cooling efficiency
  • Stirling cryocooler capable of improving cooling efficiency

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with accompanying drawing, as figure 1 As shown, a Stirling refrigerator with improved cooling efficiency includes an input signal spring 2, a piston cylinder 1, a regenerator 5, a regenerator 6, a low-temperature pulse tube 8, and a high-temperature heat exchanger 9. The input The signal spring 2 inputs periodic sinusoidal pressure fluctuations to the system, and acts on the refrigerant gas through the piston cylinder 1. The outlet of the piston cylinder 1 is connected to the inlet of the regenerator 5, and the regenerator 5 mainly cools the pressure gas of the piston cylinder 1. The regenerator The outlet of the heater 5 is connected to the inlet of the cool accumulator 6, and the cold accumulator 6 is used as the output window of the system cooling capacity to transfer the cooling capacity to the gas to be cooled. The outlet of the cold accumulator 6 is provided with a connecting structure 7, and i...

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Abstract

The invention discloses a Stirling cryocooler capable of improving cooling efficiency. The Stirling cryocooler comprises an input signal spring, a piston air cylinder, a heat regenerator, a regenerator, a low-temperature pulse tube and a high-temperature heat exchanger, wherein the input signal spring inputs periodic sine pressure fluctuation to a system, acts on refrigerant gas through the piston air cylinder, an outlet of the piston air cylinder is connected to an inlet of the heat regenerator. The heat regenerator is mainly used for cooling out pressure gas of the piston air cylinder, an outlet of the heat regenerator is connected to an inlet of the regenerator, and the regenerator is used as a system cooling capacity output window and used for transmitting cooling capacity to cooled gas. According to the Stirling cryocooler, based on the uniform distribution performance of the refrigerant gas, refrigerant gas space distribution parts are arranged in a connecting structure of a refrigerant gas outlet and the regenerator, so that the refrigerant gas entering the interior of the regenerator is uniformly distributed inside the regenerator, the heat exchange rate between the refrigerant gas and a cooled medium is improved, and the overall refrigerating efficiency of the refrigerator is improved.

Description

technical field [0001] The invention relates to a Stirling refrigerator with improved cooling efficiency, which belongs to the field of refrigerators. Background technique [0002] With the development of society, the demand for low temperature environment in many fields such as modern industry, military, energy, transportation, and medical treatment continues to increase. Compared with conventional refrigerators, the pulse-tube Stirling refrigerator avoids setting low-temperature motion pairs, and has the characteristics of simple structure, reliable operation, small vibration and long life. At present, the COP of Stirling refrigerators is generally between 3 and 5%, and the cooling efficiency is low. Starting from the uniform distribution of refrigerant gas in the regenerator (low-temperature heat exchanger), the present invention proposes to install a refrigerant gas spatial distribution component in the connection structure between the refrigerant gas outlet and the reg...

Claims

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Application Information

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IPC IPC(8): F25B9/14
CPCF25B9/145
Inventor 袁士豪何晖朱程浩李剑锋李冬锋蒋澎韩小磊包汉波汪晗吴秀杰孙潇康玉茹裴洪敏
Owner HANGZHOU HANGYANG
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