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Finned tube heat exchanger of air conditioner

A technology of air-conditioning fins and heat exchangers, which can be applied to evaporators/condensers, lighting and heating equipment, refrigeration components, etc. It can improve the heat exchange effect, ingenious design and excellent performance.

Inactive Publication Date: 2009-06-24
GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 , figure 2 The disadvantages of these two structural heat exchangers are that the utilization rate of the heat exchanger is low, the heat exchange effect is not good, and the resistance loss of the heat exchanger is relatively large.

Method used

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  • Finned tube heat exchanger of air conditioner
  • Finned tube heat exchanger of air conditioner
  • Finned tube heat exchanger of air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The structure diagram of the present invention is as image 3 As shown, it consists of several flow paths 11 In and 11 Out ,twenty one In and 21 Out 、31 In and 31 Out The first area of ​​the heat exchanger formed; the second area of ​​the heat exchanger where the gas is separated by the condensing gas-liquid separator 5 is composed of a flow path 41 In and 41 Out composition; and a third zone of the heat exchanger for subcooling. In order to realize the purpose of this technical solution, the following measures have been taken: first, the length of each flow path of the condenser is reduced; second, the gas-liquid mixture collected by the flute tube 2 is separated by the gas-liquid separator 5; Third, the gaseous refrigerant separated by the gas-liquid separator 5 passes through an outlet 4 of the separator and an inlet 4 of the second area of ​​the heat exchanger In Connected, the liquid condensed in this area is combined with the liquid refrigerant at the othe...

Embodiment 2

[0021] The structure diagram of the present invention is as Figure 4 As shown, in this embodiment, the above-mentioned flow path is composed of double rows of pipes. It consists of several flow paths 11 In and 11 Out ,twenty one In and 21 Out 、31 In and 31 Out The first area of ​​the heat exchanger formed; the second area of ​​the heat exchanger where the gas is separated by the condensing gas-liquid separator 5 is composed of a flow path 41 In and 41 Out composition; and a third zone of the heat exchanger for subcooling. By reducing the length of each flow path in the first area of ​​the heat exchanger, the length of the gas-liquid two-phase mixture flowing through each flow path can be shortened, the resistance loss can be reduced, and the heat exchange effect can be improved; Separated, heat exchange in different areas of the heat exchanger, to ensure that the refrigerant entering the second area of ​​the heat exchanger is a gaseous refrigerant, and improve the hea...

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Abstract

The invention relates to a finned-tube heat exchanger of an air conditioner. The finned-tube heat exchanger comprises a first region of the heat exchanger composed of a plurality of flow paths, a second region of the heat exchanger for condensing gas which is separated by a gas-liquid separator (5) and a third region of the heat exchanger for realizing overcooling. Gas-liquid mixture of a plurality of flow paths with reduced length in the various flow paths in the first region of the heat exchanger is gathered to the gas-liquid separator (5) which can separate the gas-liquid mixture through a pipeline (2), a gaseous refrigerant which is separated by the gas-liquid separator (5) is connected with an inlet (4In) of the second region of the heat exchanger by a first outlet (4) of the gas-liquid separator, liquid after the condensation by the second region of the heat exchanger and a liquid refrigerant of a second outlet (6) of the gas-liquid separator (5) are gathered and then enter the third region of a condenser for overcooling by a three-way valve (7). The finned-tube heat exchanger can effectively improve the utilization ratio of the heat exchanger, improve the heat exchange effect and reduce the resistance loss of the heat exchanger, thereby being the finned-tube heat exchanger of the air conditioner with reasonable design, convenience and practicability.

Description

technical field [0001] The invention is an air conditioner finned tube heat exchanger, which belongs to the modification technology of the air conditioner finned tube heat exchanger. Background technique [0002] The research on the two air conditioners mainly focuses on the improvement of the shape of the fins, the layout of the flow path, and the structure of the heat transfer tube. The theoretical research and test results show that when the refrigerant flows in the copper tube, the resistance loss in the two-phase area is very large. Resistance loss in the single-phase region. In the gas phase area of ​​the condenser inlet section and the supercooled liquid phase area of ​​the condenser outlet section, the resistance loss is small; while in the gas-liquid two-phase area in the middle of the condenser, the flow resistance loss is large. In order to overcome the problem of resistance loss, many companies in Japan adopt a two-in-one-out flow path layout for the condenser w...

Claims

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Application Information

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IPC IPC(8): F25B39/04
Inventor 田明力饶荣水陈俊伟魏富党宋铭
Owner GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD