A microchannel regenerator for air-conditioning and refrigeration systems

A technology for air-conditioning refrigeration and regenerator, which is applied to superheaters, refrigerators, refrigeration components, etc., can solve the problems of poor heat exchange effect, small effective area, and insufficient compactness, and achieves increased effective heat exchange area and heat exchange. The effect of enhancing the effect and saving the manufacturing cost

Active Publication Date: 2018-01-05
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above two regenerators, there are some shortcomings and deficiencies, mainly in the small effective area of ​​heat exchange, poor heat exchange effect, complex structure, large size, and not compact enough

Method used

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  • A microchannel regenerator for air-conditioning and refrigeration systems
  • A microchannel regenerator for air-conditioning and refrigeration systems
  • A microchannel regenerator for air-conditioning and refrigeration systems

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] During operation, the high-temperature liquid refrigerant flows in the microchannel flat tube 10 of the regenerator. The low-temperature refrigerant gas flows in each shell side (①② and ③) of the regenerator, and exchanges heat with the refrigerant liquid in the flat tube 10, and the high-temperature liquid refrigerant liquid in the flat tube 10 releases heat and is further subcooled. The low-temperature refrigerant gas in the shell side is further superheated by absorbing the heat of the liquid. Liquid refrigerant and gas refrigerant countercurrent heat exchange.

[0027] figure 1 is a schematic diagram of the appearance of the embodiment of the microchannel regenerator, figure 2 It is a cross-sectional view of its internal structure, and the direction is A direction (see figure 1 ), the regenerator embodiment is a three-...

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PUM

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Abstract

A micro-channel regenerator used in air-conditioning and refrigeration systems, including end plates arranged in the shell, cover plates covering the end plates, and multiple baffles vertically arranged between the end plates to divide the regenerator into several shell sides plate, a plurality of flat tubes arranged in the middle of the shell side, and an upper chamber with an air inlet on the upper part of the same side of the regenerator shell, and a lower chamber with an air outlet on the lower part; multiple baffles Adjacent baffles in the plate are communicated with the upper chamber or the lower chamber at intervals, and the part of the baffle not connected with the lower chamber is located in the lower chamber and has an oil discharge hole for discharging lubricating oil; the regenerator The structure is compact, it can enhance the heat exchange efficiency, increase the effective area of ​​heat exchange, increase the superheat degree of the compressor suction, reduce the amount of refrigerant charge, and has the function of liquid storage.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a microchannel heat regenerator used in an air-conditioning and refrigeration system. Background technique [0002] In the air conditioning and refrigeration system, in order to increase the cooling capacity of the system and ensure the normal operation of the system, a regenerator is sometimes installed. The regenerator exchanges heat between the subcooled liquid from the condenser and the superheated vapor from the evaporator. As a result of the exchange, the subcooling degree of the refrigerant liquid increases, the superheating degree of the air-conditioning vapor in the return air pipe increases, and the temperature of the refrigerant gas entering the compressor increases. In this way, not only can the unit cooling capacity be increased and the heat exchange efficiency of the evaporator be enhanced, but also invalid overheating can be reduced. For some hydrocarbon re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B40/06
CPCF25B40/06
Inventor 吴建华林杰雷源张泽
Owner XI AN JIAOTONG UNIV
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