Heat exchange pipe and heat exchanger comprising same

A technology of heat exchange tubes and tube bodies, which is applied in the field of heat exchange tubes, can solve problems such as the decrease in heat exchange efficiency of heat exchangers, and achieve the effects of reducing thermal resistance, reducing heat exchange efficiency, and reducing heat exchange capacity

Inactive Publication Date: 2018-01-09
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Abstract
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Problems solved by technology

[0003] Based on the above-mentioned status quo, the main purpose of the present invention is to provide a heat exchange tube, which can effectively

Method used

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  • Heat exchange pipe and heat exchanger comprising same
  • Heat exchange pipe and heat exchanger comprising same
  • Heat exchange pipe and heat exchanger comprising same

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[0039] Based on the problems mentioned in the background art section, the first aspect of the present invention provides a heat exchange tube to overcome, for example, the problem of the heat exchange efficiency of the heat exchanger after the air conditioning unit is switched.

[0040] Before describing the heat exchange tube of the present invention in detail, first briefly explain the heat exchange principle of the heat exchange tube. The heat exchanger in the air conditioner is divided into a condenser and an evaporator. Accordingly, the heat exchange process is divided into condensation heat exchange and evaporation heat exchange.

[0041] Among them, the heat transfer mechanism of condensation heat exchange is condensation heat exchange, which is divided into film condensation and bead condensation, and the condenser is generally film condensation heat exchange. During film condensation, the presence of the condensed liquid film constitutes the thermal resistance of the conde...

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Abstract

The invention discloses a heat exchange pipe and a heat exchanger comprising the same. The heat exchange pipe comprises a pipe body, wherein the outer wall surface of the pipe body is provided with outward turnups. The free ends of at least part of outward turnups are provided with sharp tips used for piercing a liquid film during condensation heat exchange. Sunken parts are arranged at the jointsbetween at least part of outward turnups and the outer wall surface and are used for reducing the activation energy required for forming bubbles in liquid during evaporation heat exchange. By adopting the heat exchange pipe, on one hand, the liquid film can be pierced effectively to reduce heat resistance, and on the other hand, the activation energy required for forming the bubbles in the liquidduring evaporation heat exchange can be effectively reduced. Accordingly, the heat exchange efficiency under the working conditions of refrigerating and heating is guaranteed, and the problem that the heat exchange efficiency is reduced after switching of the working conditions is solved.

Description

Technical field [0001] The present invention relates to the technical field of heat exchange, in particular to a heat exchange tube. The invention also relates to a heat exchanger with the heat exchange tube. Background technique [0002] Many industrial production and daily life require heat exchange, such as condensers and evaporators for air conditioning. In air conditioning units, such as household heating and cooling units or commercial heat pump units, especially large water-cooled units, evaporative heat exchange tubes are usually used in the evaporator and condensing heat exchange tubes are used in the condenser, due to the evaporative heat exchange and condensation heat exchange The principle is different, and the structure of the evaporative heat exchange tube and the condensation heat exchange tube are also different. However, when the heating and cooling conditions are switched (that is, the evaporative heat exchange tube is used for condensation heat exchange, and ...

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Application Information

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IPC IPC(8): F28F1/42F28F13/04
Inventor 颜家桃王晨光陈必奎谢镇洲蔺维君何国栋谢蓉韩中
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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