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Inner-thread evaporation heat exchange pipe with two sections of different spiral tooth-shaped structures

A technology of heat exchange tubes and helical teeth, which is applied in the field of heat exchange tubes, can solve the problems of affecting the heat transfer coefficient, the inability of a single tooth structure to adapt to various flow patterns, and the limitation of the heat transfer performance of the internal threaded tube evaporation tube, etc., to achieve improved Effect of boiling heat transfer coefficient

Inactive Publication Date: 2015-12-30
苏州新太铜高效管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the single tooth structure in a single internally threaded tube cannot adapt to various flow patterns of the two-phase flow along the process, thus affecting the improvement of the heat transfer coefficient and limiting the improvement of the heat transfer performance of the internally threaded tube evaporation tube

Method used

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  • Inner-thread evaporation heat exchange pipe with two sections of different spiral tooth-shaped structures
  • Inner-thread evaporation heat exchange pipe with two sections of different spiral tooth-shaped structures

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0018] figure 1 and figure 2 A specific embodiment of the internally threaded evaporative heat exchange tube of the present invention is shown. Like the traditional internally threaded evaporative heat exchange tube, it also includes a tube body 1, and the inner surface of the tube body 1 is provided with a certain helix angle Several helical racks 2 and grooves formed between the helical racks 2, the outer surface of the pipe body 1 is a smooth surface.

[0019] The ...

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Abstract

The invention discloses an inner-thread evaporation heat exchange pipe with two sections of different spiral tooth-shaped structures. The inner-thread evaporation heat exchange pipe comprises a pipe body, wherein the inner surface of the pipe body is provided with a plurality of spiral racks with a certain spiral lead angle and a groove channel formed between the spiral racks; the pipe body is composed of a first heat exchange pipe section and a second heat exchange pipe section; and the spiral racks in the first heat exchange pipe section and the spiral racks of the second heat exchange pipe section have different rack quantities, different rack heights, different spiral lead angles and different spiral directions. The inner-thread evaporation heat exchange pipe is divided into two heat exchange sections in the same inner-thread heat exchange pipe along the flowing direction of a refrigerating agent; and each section of the spiral racks have the different rack quantities, different rack heights, different spiral lead angles and different spiral directions, so that the high-boiling heat exchange coefficient can be greatly improved and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to a heat exchange tube, in particular to an internal thread evaporation heat exchange tube with two sections of different helical tooth structures, which is suitable for a dry evaporation evaporator. Background technique [0002] The internal thread evaporating heat exchange tube is a heat exchange tube for the dry evaporator of the air conditioning system, commonly known as "dry evaporation tube". Its working principle is that the liquid refrigerant flows through the heat exchange tube, and the refrigerant is boiled by heating it with hot water outside the tube, undergoes a phase change, and finally forms steam and exits the heat exchange tube. During the flow of the refrigerant, it is continuously heated along the way, and bubbles are continuously generated, forming a process in which the vapor phase is continuously increasing and the liquid phase is continuously decreasing. According to the proportion of the liquid phase and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/40
Inventor 王进强陈焕焯武震国
Owner 苏州新太铜高效管有限公司
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