Heat exchange tube, heat exchanger and air conditioner

A technology of heat exchange tubes and heat exchangers, which is applied in the fields of heat exchange tubes, heat exchangers and air conditioners, can solve the problems of large pressure drop, achieve the effects of reducing heat transfer resistance, strengthening fluid disturbance, and prolonging time

Pending Publication Date: 2021-06-11
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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 heat exchange tube in the prior art adopts the method of increasing the fluid flow rate to enhance the heat exchange in the tube, and there is an excessive pressure drop, thereby providing a heat exchange tube, a heat exchanger and 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

[0043] Such as Figure 1-4 As shown, the present invention provides a heat exchange tube, which includes:

[0044] The tube base 1 and the V-shaped tooth 2 arranged on the inner wall of the tube base 1, the V-shaped tooth 2 is a tooth structure protruding inward from the inner wall of the tube base 1, and perpendicular to the In the section of the extending direction of the V-shaped tooth 2, the shape of the V-shaped tooth 2 is V-shaped.

[0045] In the present invention, a V-shaped tooth structure protruding toward the inside is provided on the inner wall of the tube base of the heat exchange tube. The inner wall becomes larger, and the fluid boundary layer near the wall of the heat exchange tube is stretched thinner, which reduces the heat transfer resistance, so the thickness of the fluid boundary layer in the heat exchange tube can be effectively reduced, thereby increasing the degree of fluid turbulence. The heat exchange in the tube is effectively enhanced, and there i...

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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) and V-shaped teeth (2) arranged on the inner wall of the tube base body (1); the V-shaped teeth (2) are of a tooth structure protruding and extending inwards from the inner wall of the tube base body (1); and the V-shaped teeth (2) are in a V shape in the section perpendicular to the extending direction of the V-shaped teeth (2). By means of the heat exchange tube, the thickness of a boundary layer of fluid in the heat exchange tube can be effectively reduced, and therefore the turbulence degree of the fluid is improved, heat exchange in the tube is effectively enhanced, the situation that in the prior art, heat exchange is enhanced by increasing the flow speed is not needed, and the problem that the pressure drop is too large is avoided.

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] In commercial shell and tube heat exchangers, the heat transfer performance of high-efficiency heat exchange tubes largely affects the overall energy efficiency of the unit. In order to improve the heat transfer performance of heat exchange tubes, researchers generally focus their research on the development and optimization of the outer tooth structure of the tube whose heat transfer mode is phase-change heat transfer. As for the strengthening means in the tube, since the heat transfer state is non-phase transfer heat, the heat transfer is mainly enhanced by forced convection. Generally, the heat transfer enhancement performance in the tube is improved by strengthening the turbulent flow in the tube and thinning the boundary layer to reduce the thermal resistance. The...

Claims

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Application Information

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