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Micro heat exchanger with small hole throttling function

A heat exchanger, miniature technology, applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve problems such as mismatched heat transfer, excessive volume, difficult to weld throttling components, etc., and achieve layout The effect of flexibility, simple layout and easy assembly

Inactive Publication Date: 2014-04-30
MICROCOOL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a compact throttling-heat exchange integrated micro-heat exchanger to solve the problems of excessive volume, mismatched heat transfer and energy saving when existing heat exchangers are used in micro-refrigeration systems. Difficult soldering of flow components

Method used

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  • Micro heat exchanger with small hole throttling function
  • Micro heat exchanger with small hole throttling function
  • Micro heat exchanger with small hole throttling function

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Embodiment Construction

[0026] The technical solution of the present invention will be described below in conjunction with the accompanying drawings and specific embodiments. In the following description, the refrigerant refers to the refrigerant used in the vapor compression refrigeration system, such as R22, R134a, R407c, R410a, etc.; and the fluid refers to another refrigerant that exchanges heat with the refrigerant, Such as water, ethylene glycol aqueous solution, air, refrigerant, etc.

[0027] like figure 1 As shown, according to a specific embodiment of the present invention, the micro heat exchanger is made of five different types of metal sheets (typically stainless steel sheets with a thickness less than 1mm) stacked in a certain order, and then vacuum diffusion welded formed an entity. The five types of plates are: interface plate A, refrigerant throttling plate B, fluid heat exchange plate C, refrigerant heat exchange plate D, and blind plate E.

[0028] Channels for refrigerant and f...

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Abstract

The invention provides a micro heat exchanger with a small hole throttling function. The micro heat exchanger can serve as an evaporator or a condenser and is a solid formed by laminating five different kinds of etching plates in a certain sequence and welding the etching plates through vacuum diffusion welding. The micro heat exchanger comprises an interface plate A, a refrigerating fluid throttling plate B, one or more fluid heat exchange plates C, one or more refrigerating fluid heat exchanger plates D and a blind plate E. A small throttling hole is formed in the refrigerating fluid throttling plate B, throttling depressurization can be performed on refrigerating fluid when the refrigerating fluid flows through the small hole, throttling and phase-change heat exchanging of the refrigerating fluid can be achieved through one device, throttling elements such as capillary tubes, throttling short tubes and the like are eliminated, and quantity of external connection tubes and welding points is reduced. The micro heat exchanger with the small hole throttling function is compact in structure, small in size and capable of reducing volume and mass of the system when applied to a micro vapor compression refrigerating system.

Description

technical field [0001] The invention relates to a miniature heat exchanger that can be used in a miniature vapor compression refrigeration system, which can complete throttling of refrigerant and phase-change heat in a single component, and can be used as both an evaporator and a condenser. To cool or heat the fluid. When the invention is used in a miniature vapor compression refrigeration system, the volume and quality of the system can be effectively reduced, thereby making the system more compact. Background technique [0002] The invention relates to vacuum diffusion welding technology, layered entity manufacturing technology (vacuum diffusion welding of multi-layer metal sheets), photochemical etching technology, miniature vapor compression refrigeration technology and compact heat exchanger technology. [0003] Vacuum diffusion welding is under the condition of high vacuum (the degree of vacuum is not less than 10 -2 Holder), the workpiece to be welded is placed betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F3/08
Inventor 杨宇飞周小平杨宇翔
Owner MICROCOOL TECH
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