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Finned tube with variable axial spacing of fins

A technology of axial spacing and fins, which is applied in the field of heat exchangers, can solve the problems of heat transfer coefficient drop, dust collection, etc., and achieve the effects of reducing flow resistance, reducing dust collection, and enhancing heat transfer

Active Publication Date: 2016-06-08
DAYE QIFENG POWER REFRIGERATION EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the fins in the prior art are all arranged on the base tube as a whole. Therefore, although the use of finned tubes has the function of enhancing heat transfer, under certain working conditions, such as flue gas heat exchange and impurities In terms of gas heat exchange, ash collection may occur, resulting in a decrease in heat transfer coefficient. Therefore, the present invention proposes a new heat exchange tube for the current situation in the prior art.

Method used

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  • Finned tube with variable axial spacing of fins
  • Finned tube with variable axial spacing of fins
  • Finned tube with variable axial spacing of fins

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Embodiment Construction

[0031] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] The invention discloses a finned tube. The finned tube includes a base tube and transverse fins arranged on the base tube. The cross section of the base tube is rectangular, and the shape of the fins is rectangular.

[0033] By arranging rectangular fins and rectangular base tubes, the base tubes and fins have the same shape, so that the heat exchange field is coordinated, and the heat distribution direction and the amount of heat transfer are basically the same in the circumferential direction, thereby further enhancing heat transfer.

[0034] As a preference, figure 1 A schematic cross-sectional view of an H-shaped finned tube is shown. Such as figure 1 As shown, the H-shaped finned tube includes a base tube 1 and fins 4, 5, the fins 4, 5 are multiple groups, and the multiple groups of fins 4, 5 are along the axis direction of t...

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Abstract

The invention provides a heat exchange tube with variable axial spacing of fins. The heat exchange tube comprises a base tube and a plurality of fins, wherein the plurality of the fins are arranged on the base tube in a spacing manner in an axis direction of the base tube; and each fin is parallel to the cross section of the base tube. The finned tube is characterized in that in a flowing direction of a fluid in the base tube, the spacing between adjacent two fins in an axial direction of the base tube is continuously reduced. According to the finned tube, the spacing between the fins is changed, so that the heat can be absorbed to the greatest extent.

Description

technical field [0001] The invention belongs to the field of heat exchangers, in particular to a heat exchanger part-finned tube. Background technique [0002] With the rapid development of modern society and economy, the human demand for energy is increasing. However, the reserves of traditional energy such as coal, oil, and natural gas continue to decrease and become increasingly scarce, resulting in rising prices. At the same time, the environmental pollution caused by conventional fossil fuels is also becoming more and more serious. These greatly limit the development of society and the improvement of human life quality. . Therefore, in order to save energy, enhanced heat transfer technology is constantly developing, and finned tubes are also widely used in the field of heat exchange. At present, the fins in the prior art are all arranged on the base tube as a whole. Therefore, although the use of finned tubes has the function of enhancing heat transfer, under certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/42F28F21/08
CPCF28F1/422F28F21/085
Inventor 赵炜吕吉平郭春生
Owner DAYE QIFENG POWER REFRIGERATION EQUIP CO LTD
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