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Linear type double-acting refrigeration system

A refrigeration system, linear technology, applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve problems such as inability to work, inability to obtain refrigeration capacity, etc.

Active Publication Date: 2013-10-16
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of this structure is that to achieve greater cooling output, the number of linear motors and pulse tube refrigerators needs to be increased, but the phase difference of the gas volume flow rate at both ends of the pulse tube refrigerator and the units connected in series to the loop The number is closely related. If the number is further increased, the regenerator of the pulse tube refrigerator cannot work in a suitable traveling wave phase, and cannot obtain a larger cooling capacity and a more ideal efficiency.

Method used

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Examples

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Effect test

Embodiment 1

[0069] Figure 4 It is a schematic structural diagram of a linear double-action pulse tube refrigeration system (Example 1) of the present invention. Such as Figure 4 As shown, the linear double-acting pulse tube refrigeration system of the present embodiment 1 consists of the first pulse tube refrigerator (also known as the first thermoacoustic refrigerator) connected in series between the linear compressor 1 and the linear generator 4 converter) 2-1, a linear double-acting compressor 3 and a second pulse tube refrigerator (also known as a second thermoacoustic converter) 2-2;

[0070] The linear compressor 1 is located at the starting end of the system, which consists of a first compression piston 8, a compressor mover 6 connected to the first compression piston 8, a first leaf spring 7 for fixing the compressor mover 6 and Composed of a compressor stator coil 5 wound around the periphery of the compressor mover 6;

[0071] Both the first pulse tube refrigerator 2-1 and ...

Embodiment 2

[0078] Figure 5 It is a structural schematic diagram of a linear double-action Stirling refrigeration system (Example 2) of the present invention. Such as Figure 5 As shown, the linear double-acting Stirling refrigeration system of the present embodiment 2 consists of a linear compressor 1 serially connected between the linear compressor 1 and the linear generator 4, the first Stirling refrigerator 2-1. Linear double-acting compressor 3, the second Stirling refrigerator 2-2 and linear generator 4.

[0079] The linear compressor 1 works at the beginning of the system, and the linear generator 4 works at the end of the system; the linear compressor 1 of this embodiment has the same structure as the linear compressor 1 of Embodiment 1; The linear compressor 4 and the linear double-acting compressor 3 are slightly different from those in Embodiment 1. The difference is that the linear compressor 4 and the linear double-acting compression The expansion piston of machine 3 is d...

Embodiment 3

[0082] Image 6 It is a schematic structural diagram of a novel linear double-action refrigeration system (Example 3) of the present invention. Such as Image 6 As shown, the linear double-acting pulse tube refrigeration system of the present embodiment 3 consists of the first pulse tube refrigerator 2-1, the first linear Type double-acting compressor 3-1 and the second pulse tube refrigerator 2-2, the second linear double-acting compressor 3-2 and the third pulse tube refrigerator 2-3.

[0083] The linear compressor 1 works at the beginning of the system, and the linear generator 4 works at the end of the system; the linear compressor 1 of this embodiment has the same structure as the linear compressor 1 of Embodiment 1; Linear generator 4 is identical in structure with the linear generator 4 of embodiment 1;

[0084] The first pulse tube refrigerator 2-1, the second pulse tube refrigerator 2-2 and the third pulse tube refrigerator 2-3 in this embodiment are all composed o...

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Abstract

The invention relates to a linear type double-acting refrigeration system. The linear type double-acting refrigeration system consists of N pulse tube refrigerators and N-1 linear type double-acting compressors, which are serially connected between a linear type compressor and a linear type electric generator in sequence and arranged at intervals, wherein the linear type compressor is positioned at the beginning end of the system, and the linear type electric generator is positioned at the tail end of the system; each of the linear type compressor and the linear type electric generator works in a single-piston manner; two pistons of each linear type double-acting compressor work at the same time; N is a positive integer of 2-20. According to the system, inertial tubes and air reservoirs or two-way air inlet equal phase-modulation structures in a traditional pulse tube refrigerator are omitted, so that the structure is compact; required phase can be realized by adjusting the frequency characteristics of linear motors at both ends of each pulse tube refrigerator and motion phases of compression pistons and expansion pistons; the flow-out sound power of the refrigerators is free of dissipation, and is absorbed by the expansion pistons of the linear motors, so that high efficiency and large refrigerating capacity can be obtained; the linear type double-acting refrigeration system has good application prospect in occasions requiring the refrigerators to obtain large refrigerating capacity, high efficiency and long service life.

Description

technical field [0001] The invention relates to a refrigeration system, in particular to a novel linear double-action refrigeration system. Background technique [0002] Superconducting power technology is a high-tech with economic and strategic significance in the 21st century. The application of superconducting power technology can enhance the development level of the power industry and promote major changes in the power industry. The superconducting grid can not only greatly increase the capacity of a single unit in the power system and the transmission capacity of the power grid, and greatly reduce the loss of the power grid, but also can significantly improve the quality of electric energy, and improve the stability and reliability of the power system operation. Since high-temperature superconductors can operate in the liquid nitrogen temperature region (77K), which is much higher than the liquid helium temperature region (4.2K) required by low-temperature superconduct...

Claims

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Application Information

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IPC IPC(8): F25B9/14
Inventor 罗二仓童欢戴巍陈燕燕吴张华胡剑英
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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