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Heat transferring tube

A heat transfer tube and tube wall technology, applied in the field of heat transfer tubes, can solve problems such as the loss of heat transfer process effects, achieve the effects of reducing pressure drop, improving heat transfer efficiency, and reducing resistance

Inactive Publication Date: 2017-12-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The furnace tube with this structure can suppress the pressure loss of the furnace tube, but the effect of the heat transfer process is also lost

Method used

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0032] In the present invention, unless otherwise stated, the orientation words used such as "up, down, left, and right" generally refer to the direction of the heat transfer tube of the present invention under working conditions, which is the direction shown in the accompanying drawings. direction shown. The center line of the heat transfer tube refers to the center line of the cylinder formed by the heat transfer tube along the axial direction under the working condition of the heat transfer tube.

[0033] Such as Figure 1-Figure 3 As shown, according to the heat transfer tube 10 of the present invention, the heat transfer tube 10 is provided with a twisted...

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Abstract

The invention discloses a heat transferring tube. A twisted piece (1) is arranged in the heat transferring tube (10), wherein the twisted piece (1) is provided with a vertical hole which is formed by penetrating from the upper side edge to the lower side edge of the twisted piece in the axial direction of the heat transferring tube (10). The heat transferring tube can improve heat transfer efficiency while reducing pressure drop of passed fluid.

Description

[0001] This application is a divisional application of a patent application with an application date of October 30, 2012, an application number of 201210426111.X, and a title of "a heat transfer tube". technical field [0002] The invention relates to a heat transfer tube, which is especially suitable for heating furnaces, especially cracking furnaces for producing ethylene. Background technique [0003] The Fourier theorem of the heat transfer process is shown in the following formula (1), where q is the heat transfer amount, A is the heat transfer area, k is the heat transfer coefficient, and t / y is the temperature gradient. [0004] [0005] Taking the heating furnace in the petrochemical industry as an example, when the heat transfer area (determined by the capacity of the heating furnace) and the temperature gradient (determined by the material of the furnace tube and the capacity of the burner) are determined, the only one that can increase the heat transfer per unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/40
CPCF28F1/40
Inventor 王国清张利军刘俊杰周先锋杜志国张永刚张兆斌周丛
Owner CHINA PETROLEUM & CHEM CORP