Difunctional alpha-type stirling refrigerator

A double-acting, refrigerator technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of easy leakage and pollution of working fluid, low service life, etc., achieve stable rigidity, reduce usage, and improve mechanical efficiency Effect

Active Publication Date: 2017-08-29
宁利平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the defects of the traditional α-type Stirling refrigerator that the working medium is easy to leak and pollute, and the service life is low

Method used

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  • Difunctional alpha-type stirling refrigerator
  • Difunctional alpha-type stirling refrigerator
  • Difunctional alpha-type stirling refrigerator

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Embodiment Construction

[0031] The content of the present invention is described in more detail below:

[0032] The gas flow direction of the gas storage chamber of the piston in each state is as follows:

[0033] Such as figure 1 , 2 Shown: When the pressure above the piston 2 is higher than the pressure of the piston cavity, the gas enters the piston cavity from the upper one-way inlet valve 10, at this time the upper one-way outlet valve 3 is closed; the pressure in the piston cavity is higher High, the gas coming out of the air outlet hole 4 on the side wall of the upper part of the piston 2 can only move downward due to the high pressure on the upper part, and then flows into the four-way pipe 5 in the middle. Valve 10 is closed; gas flows to the lower low-pressure chamber. The gas coming out of the side wall outlet hole 4 of the lower part of the piston 2 will flow up and down, on the one hand, it will flow into the lower low-pressure chamber through the four-way pipe 5, and on the other ha...

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Abstract

The invention provides a difunctional alpha-type stirling refrigerator, and belongs to the technical field of refrigerators. The difunctional alpha-type stirling refrigerator comprises a piston cylinder and a piston, wherein the piston is arranged in the piston cylinder, the piston is in clearance fit with the inner wall of the piston cylinder; a closed cavity is formed in the piston; a cross-shaped four-way pipeline is arranged in the cavity of the piston; one-way air outlet valves and one-way air inlet valves are arranged on the four-way pipeline in the cavity of the piston; air outlets allowing the cavity of the piston to communicate with an inner cavity of the piston cylinder are formed in the piston; a traction frame capable of moving relative to the piston cylinder is arranged outside the piston cylinder; and the movement of the piston is controlled through the movement of the traction frame. The difunctional alpha-type stirling refrigerator has the advantages that the mechanical efficiency can be improved, working mediums can be converted into complete internal circulation, and the defects of leakage pollution can be overcome.

Description

technical field [0001] The invention relates to refrigerator technology, in particular to a double-acting α-type Stirling refrigerator. Background technique [0002] For a long time, refrigeration has been achieved by using a refrigerant through a compressor. As the refrigeration temperature range is wide, Stirling refrigeration with the highest theoretical efficiency is only used in some cryogenic refrigeration. Among them, the free-piston Stirling refrigerator has high stability, but its actual efficiency is low and its cost is high, so it is difficult to popularize. The α-type Stirling refrigerator has a simple structure and relatively high efficiency, but because its piston is oil-free and dynamic seal, the working medium is easy to leak and pollute, and its service life is relatively short. Contents of the invention [0003] In view of the above technical problems, the present invention proposes a double-acting Stirling refrigerator. It solves the defects of the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/14
CPCF25B9/14F25B2500/22F25B2500/221F04B39/0016F04B7/04
Inventor 宁利平宁伟洁
Owner 宁利平
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