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Spiral rib heat exchange tube for precooler and machining method of spiral rib heat exchange tube

A ribbed heat exchange tube and precooler technology, which is applied in the field of spiral rib heat exchange tubes and its processing, can solve the problems of poor heat exchange effect of cold dryers, achieve enhanced irregular pulsation, good heat exchange effect, The effect of enhanced heat transfer coefficient in the tube

Pending Publication Date: 2020-08-18
福建伊普思实业有限公司
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a spiral rib heat exchange tube for a pre-cooler and its processing method, so as to solve the technical problem of poor heat exchange effect of existing cold dryers

Method used

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  • Spiral rib heat exchange tube for precooler and machining method of spiral rib heat exchange tube
  • Spiral rib heat exchange tube for precooler and machining method of spiral rib heat exchange tube
  • Spiral rib heat exchange tube for precooler and machining method of spiral rib heat exchange tube

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0027] Such as image 3 As shown, a spiral-finned heat exchange tube for a precooler according to the present invention includes an outer spiral-finned tube 1 and a spiral tie 2, the spiral tie 2 is inserted into the outer spiral-finned tube 1, and the outer spiral-finned tube 1 The surface is provided as a helical ribbed structure. The spiral aluminum tube and the insert in the tube can greatly improve the heat transfer coefficient of the precooler of the cold ...

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Abstract

The invention discloses a spiral rib heat exchange tube for a precooler and a machining method of the spiral rib heat exchange tube, and belongs to the technical field of refrigeration. The spiral ribheat exchange tube comprises an outer spiral rib tube and a spiral link, the spiral link is inserted into the outer spiral rib tube, and the surface of the outer spiral rib tube is arranged to be ofa spiral rib-shaped structure. The spiral ribs are machined on the surface of an aluminum tube, the ribs can increase the heat exchange area outside the tube, air flows through the surface of the circular tube, a boundary layer can be locally formed on the surface, fluid in the boundary layer can flow regularly in a laminar mode, fluid outside the boundary layer flows irregularly in a turbulent mode, and the heat exchange coefficient of air in the laminar flow is smaller than the heat exchange coefficient of turbulent flow, and the rib structure outside the tube can damage the boundary layer of the surface and enhance the heat exchange coefficient of the fluid outside the tube and the tube wall.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a spiral rib heat exchange tube for a precooler and a processing method thereof. Background technique [0002] The traditional cold dryer relies on the vapor compression refrigeration system to cool the compressed air, the water vapor in the compressed air is cooled and liquefied into condensed water, and the water is removed through the gas-liquid separator to obtain dry air. The cold dryer heat exchanger consists of two parts. Pre-cooler and evaporator, the compressed air first enters the pre-cooler to cool down, and at the same time, the compressed air at the outlet of the evaporator is heated up by the pre-cooler, and the compressed air enters the evaporator after being cooled by the pre-cooler, and the refrigerant in the evaporator tube is kept at about 0°C evaporating temperature, the compressed air is cooled to a saturated state of 2~10°C. The precooler is used to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/36F28F13/02F28F13/12B21C37/26
CPCB21C37/26F28F1/36F28F13/02F28F13/12
Inventor 林培锋雷源
Owner 福建伊普思实业有限公司
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