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Spiral heat exchange pipe

A heat exchange tube and spiral technology, which is applied in the field of heat exchange tubes for strengthening heat exchange structures, can solve the problems of difficulty, excessive spiral angle, and limited flow heat transfer coefficient, and achieves low cost, low resistance, strong strength and so on. Anti-fouling effect

Inactive Publication Date: 2017-05-24
JIANGYIN RAINBOW SPECIAL HEAT EXCHANGE EQUIP
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, because the helix angle is too large, the improvement of the convective heat transfer coefficient is very limited; and it is quite difficult to process the heat exchange tube in the shape of a flat tube into a spiral shape.

Method used

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  • Spiral heat exchange pipe
  • Spiral heat exchange pipe

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Embodiment Construction

[0015] A helical heat exchange tube, the part that performs heat exchange is helical (refer to figure 1 , 2 ). In the present invention, the cross-section of the heat exchange tube is circular, the helix angle θ of the heat exchange part is 10° to 30°, and the pitch h is 3 to 6 times the outer diameter of the heat exchange tube; The two ends of the heat exchange tube are fixed (usually welded) on the heat exchanger, the inlet end 1 and the outlet end 2 of the heat exchange medium are the same as the prior art, and they are all straight pipes (obviously, they are only a small section) ). According to the actual installation situation, this short section of straight pipe at the inlet end 1 or outlet end 2 can be directly extended or bent with the two ends of the spiral pipe section, or can be bent to the axis of them or one of them and the spiral pipe section. A state where the axes overlap (due to the obviousness, the accompanying drawing only draws the structure in which th...

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Abstract

The invention relates to a spiral heat exchange pipe. The portion, playing a heat exchange role, of the spiral heat exchange pipe is spiral. The spiral heat exchange pipe is characterized in that the cross section of the heat exchange pipe is in the shape of a ring; the helix angle (theta) of the portion playing the heat exchange role is 10-30 degrees, and the screw pitch (h) of the portion playing the heat exchange role is 3 times to 6 times of the outer diameter of the heat exchange pipe; and a pipe segment, fixing the two ends of the heat exchange pipe to a heat exchanger, namely an inlet end (1) and an outlet end (2) of the heat exchange pipe are each a segment of straight pipe. The spiral heat exchange pipe has very high heat transfer efficiency and also has very high self-cleaning and anti-scaling capacity, the space can be effectively utilized, and the heat transfer capacity of small space and large heat is achieved.

Description

technical field [0001] The invention relates to a heat exchange tube in a heat exchanger, in particular to a heat exchange tube with an enhanced heat exchange structure. Background technique [0002] Heat exchangers, also known as heat exchangers, are general-purpose process equipment widely used in petroleum, chemical, power, energy, metallurgy, aviation, vehicles, refrigeration, food, environmental protection and many other industrial sectors. The missing key components occupy a very important share in material consumption, power consumption and engineering investment. At present, the energy crisis is becoming more and more serious, and the social, economic, and environmental issues centered on energy are becoming more and more prominent. Energy conservation and rational and effective use of energy are particularly important. [0003] To improve the efficiency of the heat exchanger, that is, to enhance the heat transfer of the heat exchanger, certain technical measures ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/10
Inventor 吕江强
Owner JIANGYIN RAINBOW SPECIAL HEAT EXCHANGE EQUIP
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