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Cold end heat exchanger of free piston type Stirling engine

A heat exchanger and piston-type technology, applied in the field of cold-end heat exchangers of free-piston Stirling generators, can solve the problems of complex heat transfer path, limited flow space, complex processing technology, etc., and achieve a clear heat transfer path. , The effect of large flow space and high heat exchange efficiency

Active Publication Date: 2015-05-06
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this structure, the cooled working fluid has limited flow space in the heat exchange area, the heat transfer path is complicated, the heat exchange efficiency is low, and the processing technology is complicated.

Method used

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  • Cold end heat exchanger of free piston type Stirling engine
  • Cold end heat exchanger of free piston type Stirling engine
  • Cold end heat exchanger of free piston type Stirling engine

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Experimental program
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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 with figure 2 As shown, a free-piston type Stirling generator cold end heat exchanger provided by the present invention includes a cooling pipe 1, an outer wall 3 and a heat exchanger shell. The heat exchanger shell is composed of an integrally formed heat exchanger shell upper wall 2 , a heat exchanger shell lower wall 4 and a heat exchanger shell inner wall 11 . The outer wall 3 and the heat exchanger shell form a closed cavity, and 375 vertically arranged cooling tubes 1 are arranged in the cavity. The upper wall 2 of the heat exchanger shell and the lower wall 4 of the heat exchanger shell are respectively provided with 375 cooling pipe through holes 8, and the upper and lower ends of each cooling pipe 1 pass through a cooling pipe through hole 8 respectively. 1 Sealed at the through hole 8 of the cooling pipe. ...

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PUM

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Abstract

The invention belongs to cold end heat exchangers, and particularly discloses a cold end heat exchanger of a free piston type Stirling engine. The cold end heat exchanger comprises cooling pipes, an outer wall and a heat exchanger shell. The heat exchanger shell is composed of an upper heat exchanger shell wall, a lower heat exchanger shell wall and an inner heat exchanger shell wall which are integrally formed. A plurality of cooling pipes are arranged in a cavity defined by the outer wall and the heat exchanger shell, and each of the upper heat exchanger shell wall and the lower heat exchanger wall is provided with a plurality of cooling pipe through holes. The upper end and the lower end of each cooling pipe each penetrate one cooling pipe through hole; and a cooling agent inlet and a cooling agent outlet are formed in the outer wall. Flowing space of cooled working media in a heat exchange area is large, the heat transfer path is clear, and the heat exchange efficiency is high.

Description

technical field [0001] The invention belongs to a cold end heat exchanger, in particular to a free piston type Stirling generator cold end heat exchanger. Background technique [0002] The hot head part of the free piston Stirling generator is mainly composed of expansion chamber, heater, regenerator, cooler compression chamber, displacement piston, power piston and other parts. Among them, three heat exchangers: heater, regenerator, and cooler are the key components in the Stirling generator. When the Stirling generator is working, the heat energy is converted between the hot chamber and the cold chamber through the heat exchanger, so the performance of the heat exchanger has an important impact on the improvement of the output power and efficiency of the Stirling generator. The performance of heat exchangers applied to Stirling generators is affected by various factors such as pressure, temperature, volume, thermal conductivity of materials, geometry, arrangement, propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G1/055
CPCF02G1/055
Inventor 林晨肖翀黄玉平周海平徐祯祥曾发
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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