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Heat exchange tube, heat exchanger and air conditioner

A technology of heat exchange tubes and heat exchangers, applied in the direction of heat sinks, tubular elements, heat exchange equipment, etc., can solve the problem of low PEC coefficient, achieve the effects of reducing weight, enhancing turbulence, and reducing resistance

Pending Publication Date: 2021-06-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the PEC coefficient in the heat exchange tube in the prior art is not high, thereby providing a heat exchange tube, a heat exchanger and an air conditioner

Method used

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  • Heat exchange tube, heat exchanger and air conditioner
  • Heat exchange tube, heat exchanger and air conditioner
  • Heat exchange tube, heat exchanger and air conditioner

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Embodiment Construction

[0033] like Figure 1-6 As shown, the present invention provides a heat exchange tube, which includes:

[0034] The tube base 1 and the first teeth 2 and the second teeth 3 arranged on the inner wall of the tube base 1, the first teeth 2 and the second teeth 3 protrude inward from the inner wall of the tube base 1 Extended tooth structure, and in the longitudinal section passing through the axis of the pipe base 1, the cross-sectional shape of the first tooth 2 is trapezoidal to form a trapezoidal tooth, and the cross-sectional shape of the second tooth 3 is triangular to form a Triangular teeth.

[0035] In the present invention, trapezoidal tooth structures and triangular tooth structures protruding toward the inside are arranged on the inner wall of the tube base of the heat exchange tube, and trapezoidal teeth and triangular teeth can be used to form structures with different tooth heights, which is conducive to secondary thinning of the near-wall surface Fluid boundary ...

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Abstract

The invention provides a heat exchange tube, a heat exchanger and an air conditioner. The heat exchange tube comprises a tube base body (1) as well as first teeth (2) and second teeth (3) which are arranged on the inner wall of the tube base body (1); the first teeth (2) and the second teeth (3) are tooth structures protruding and extending inwards from the inner wall of the tube base body (1); in the longitudinal section passing through the axis of the tube base body (1), the sections of the first teeth (2) are trapezoidal so as to form trapezoidal teeth, and the sections of the second teeth (3) are triangular so as to form triangular teeth. According to the heat exchange tube, the trapezoidal teeth and the triangular teeth are adopted and can form structures with different tooth heights, secondary thinning of a fluid boundary layer close to the wall surface is facilitated, when a non-phase-change fluid flows through the inner wall of the heat exchange tube, the fluid boundary layer close to the wall surface of the heat exchange tube is stretched to be thinner, the heat resistance is reduced, heat exchange is enhanced, and the PEC coefficient in the tube is increased.

Description

technical field [0001] The invention belongs to the technical field of heat exchange, and in particular relates to a heat exchange tube, a heat exchanger and an air conditioner. Background technique [0002] With the rapid development of social economy, global energy and environmental problems have become more prominent, and the society's voice for energy conservation and emission reduction has become louder. In the field of heat exchangers, heat transfer enhancement technology has made great progress and development in the past three decades. Especially in terms of strengthening heat exchange tubes, researchers have developed a variety of heat exchange tubes such as evaporator tubes, condenser tubes, and heat pump tubes from the perspective of internal and external tube strengthening. In terms of internal strengthening of heat exchange tubes, it has entered the fields of three-dimensional low-rib strengthening and built-in bypass device strengthening from conventional inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/40
CPCF28F1/40F28F2215/04
Inventor 卓明胜张治平胡东兵胡海利王小勇
Owner GREE ELECTRIC APPLIANCES INC
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