Recuperative heat exchanger with radial reinforced heat conduction

Abstract

The invention relates to a regeneration heat exchanger with radial strengthened conduction, comprising the shell of heat returning machine, and metal plate with hole and metal silk screen / shot set in said shell of heat returning machine in certain distance, which is provided with different conductivity. The outer diameter of metal plate with hole is consistent with the inner diameter of outer shell of heat returning machine. The hydraulic diameter of small hole on said metal plate with hole is 0.5mm-5mm. the sum of said small holes is 1 / 4-2 / 3 of the section area of metal plate with hole. It is provide with following merits that simple structure, filling in convenience, strengthening the radius heat exchanging ability of regeneration heat exchanger under the precondition that the loss of heat leak at the axial direction is not increased, maintaining the temperature of heat returning machine consistent or small difference at the transverse section of the same axial position, and improving the efficiency of heat returning machine so as to improve the refrigerated performance.

Description

technical field [0001] The invention belongs to the heat recovery heat exchanger in the technical field of refrigeration and low temperature, in particular to a heat recovery heat exchanger with radially enhanced heat conduction. Background technique [0002] Cryogenic refrigerators have a wide range of application backgrounds in many fields such as military affairs, space technology, cryogenic electronics, cryogenic medicine, cryogenic biology, and natural gas liquefaction. In recent years, the importance of low-temperature refrigeration technology in civil technology and national defense technology has increased. As various infrared and superconducting electronic devices and products have entered the practical stage, cryogenic refrigerators have been developed rapidly, providing effective low-temperature cold sources for these related technical devices at low temperatures to ensure their normal operation. [0003] The regenerator is a key component in cryogenic refrigerat...

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Problems solved by technology

[0005] The object of the present invention is to overcome the shortcomings of the regenerator structure of the existing refrigerating machine, and provide a recuperator with radially enhanced heat conduction, which can effectively solve the existing problems. It has the disadvantage of insufficient radial heat conduction capacity of the regenerator, which strengthens the radial heat transfer of the regenerator, maintains the temperature consistency on the cross-section of the same axial position of the regenerator or reduces the temperature difference, and improves the heat transfer rate of the regenerator. thermal efficiency, thereby increasing the efficiency of the chiller

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