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Heat exchanger provided with annular slots and used for sound-energy refrigerating machine

A technology of annular slits and refrigerators, which is applied in the direction of refrigerators, indirect heat exchangers, refrigeration and liquefaction, etc., which can solve the problems of useless full use of the heat dissipation area of ​​the inner sleeve, large contact thermal resistance, etc., and achieve good refrigeration effect , Eliminate contact thermal resistance, high heat dissipation effect

Pending Publication Date: 2018-06-22
陕西仙童科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the patent, the inner sleeve and the main body of the heat exchanger do not use heat fit, and the contact thermal resistance will be relatively large, so it is useless to make full use of the heat dissipation area of ​​the inner sleeve

Method used

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  • Heat exchanger provided with annular slots and used for sound-energy refrigerating machine
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  • Heat exchanger provided with annular slots and used for sound-energy refrigerating machine

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...

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Abstract

The invention discloses a heat exchanger provided with annular slots and used for a sound-energy refrigerating machine, and belongs to the technical field of heat exchangers. The heat exchanger provided with the annular slots and used for the sound-energy refrigerating machine comprises an inner rib body and an inner sleeve. The inner rib body is an annular cylinder with the inner annular surfaceopen towards the outer annular surface. The inner sleeve is arranged in the inner rib body in a sleeved mode and is in interference fit with the inner rib body. The multiple slots are formed in the inner annular surface of the inner rib body at intervals, so that a slot channel allowing air to flow therein is formed between the inner rib body and the inner sleeve. According to the heat exchanger provided with the annular slots and used for the sound-energy refrigerating machine, forced-convection heat change between alternately-flowing working medium gas and the inner wall of the heat exchanger is achieved, and the heat exchange coefficient is large; in the heat conduction direction towards the outside, through interference fit between the inner rib body and the inner sleeve as well as a welding structure of the inner rib body and outer fins, contact heat resistance is eliminated; and in addition, the inner rib body is made of red copper with small heat conduction resistance, and thusthe heat exchanger provided with the annular slots in the hot end has a good cooling effect.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to an annular slit heat exchanger used in a sound energy refrigerator. Background technique [0002] Acoustic energy refrigerators include Stirling refrigerators, Stirling-type pulse tube refrigerators, etc., using helium or hydrogen to form high-frequency pressure waves in the machine to achieve refrigeration effects, of which Stirling refrigerators use gas expansion refrigeration The closed cycle is formed by the valveless communication between the compression unit and the expansion unit. At present, the Stirling refrigerator is developing towards a large cooling capacity, and the cooling temperature range is also widened, and it is developing towards a medium-high (100K~270K) temperature range. In particular, Stirling refrigerators used in low-temperature refrigerators have a cooling capacity ranging from tens of watts to hundreds of watts. [0003] For a small Stirling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D21/00F25B9/14
CPCF25B9/14F28D21/00
Inventor 杨厚成陈曦
Owner 陕西仙童科技有限公司
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