Efficient heat exchange tube for condensation

A heat exchange tube and high-efficiency technology, applied in the field of heat exchange, can solve the problems of low heat exchange efficiency, poor heat exchange performance, and small heat exchange area of ​​heat exchange tubes, so as to improve heat exchange efficiency, increase liquid discharge speed, increase The effect of the heat transfer area

Pending Publication Date: 2018-11-13
上海欧贡制冷科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a high-efficiency heat exchange tube for condensation to solve t

Method used

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  • Efficient heat exchange tube for condensation

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Experimental program
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Effect test

Example Embodiment

[0019] Example 1

[0020] Such as figure 1 As shown, this embodiment provides a high-efficiency heat exchange tube for condensation, which includes a heat exchange tube body 1 and a plurality of outer fins 2.

[0021] Specifically, the inner surface of the heat exchange tube body 1 is provided with internal threads; a plurality of outer fins 2 are spiral and uniformly distributed on the outer surface of the heat exchange tube body 1. At the same time, the side of the outer fin 2 is provided with a first groove 3 extending to the root of the outer fin 2, and a second groove 4 is provided on the top of the outer fin 2. The first groove 3 and the second groove 4 It forms a channel conducive to liquid flow with the outer surface of the heat exchange tube body 1.

[0022] In this embodiment, the first groove 3 allows the condensed refrigerant liquid to flow to the bottom of the outer fin 2 quickly and smoothly, which greatly increases the liquid discharge speed on the surface of the hea...

Example Embodiment

[0028] Example 2

[0029] This embodiment provides another high-efficiency heat exchange tube for condensation, which is basically the same as Embodiment 1, and only the different parts are introduced below.

[0030] In this embodiment, the height of the outer fin 2 is 0.75-1.1mm; the depth of the first groove 3 is 0.05-0.2mm, the width is 0.05-0.2mm, and the number of the first groove 3 is 75-200 / Week; the depth of the second groove 4 is 0.1-0.3mm, the width is 0.1-0.3mm, the number of the second groove 4 is 20-75 per week; the height of the inner tooth 5 is 0.25-0.45mm, The helix angle is 35-60 degrees. It should be noted that if the height of the outer fins 2 is too large or too small, and the fin pitch between the outer fins 2 is too large or too small, the heat transfer performance will be deteriorated.

[0031] In summary, this not only greatly increases the discharge speed of the outer fin 2, but also significantly increases the heat exchange area of ​​the heat exchange tub...

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Abstract

The invention discloses an efficient heat exchange tube for condensation. The efficient heat exchange tube comprises a heat exchange tube body and a plurality of outer fins, an internal thread is arranged on the inner surface of the heat exchange tube body, the multiple fins are spirally and evenly arranged on the outer surface of the heat exchange tube body, the side face of each outer fin is provided with a first groove extending to the fin root of each outer fin, the top of each outer fin is provided with a second groove, and the first grooves, the second grooves and the outer surface of the heat exchange tube body form a channel facilitating liquid flowing. The efficient heat exchange tube for condensation is simple in structure and reasonable in design, the heat exchange area of the heat exchange tube is greatly increased, the heat exchanger efficiency of the heat exchange tube is obviously improved, and the heat exchange performance of the heat exchange tube is better improved.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a high-efficiency heat exchange tube for condensation. Background technique [0002] In many industrial fields such as refrigeration and air conditioning, water-cooled condensers have been widely used. Most of them are flooded shell-and-tube heat exchangers. The refrigerant condenses outside the tube to exchange heat, and the refrigerant flows in the tube to exchange heat. Because the heat transfer resistance of refrigerant condensing on the outside of the tube is greater than the heat transfer resistance of convective heat transfer inside the tube, strengthening the heat transfer performance of the heat exchange tube can improve the heat transfer performance of the condenser. [0003] At present, the commonly used heat exchange tubes have a small heat exchange area and low heat exchange efficiency, which further leads to poor heat exchange performance of the heat exchange...

Claims

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Application Information

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IPC IPC(8): F28F1/36
CPCF28F1/36F28F2215/08
Inventor 程启康耿雪飞
Owner 上海欧贡制冷科技有限公司
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