External-fin-type heat exchange pipe

一种外翅片式换热管

Abstract

本实用新型公开了一种外翅片式换热管,属于通用热交换或传热设备的零部件技术领域,包括有基管,以及设置于基管外的翅片,所述的基管外套设有铝管,翅片轧制连接于铝管的外壁。所述的基管内壁设置有螺旋槽。所述的铝管厚度为基管厚度的1/4至1/2。所述的螺旋槽为多头螺旋槽。由于本实用新型的换热管由基管及套设在基管外的铝管构成,基管的材料可根据流体介质的特性相应地选择;而铝管由于其具有良好的热传导性能,且其在气体环境中由于其表面的氧化膜而具有良好的抗腐蚀性能,在保证换热管的换热效率的基础上,很好地适应不同流体介质环境。
The utility model discloses an external-fin-type heat exchange pipe, which belongs to the technical field of parts of general heat exchange or heat transmission equipment. The external-fin-type heat exchange pipe comprises a base pipe and fins arranged outside the base pipe. An aluminum pipe is sleeved on the base pipe, and the fins are connected to an outer wall of the aluminum pipe in a rolling manner. A plurality of spiral grooves are arranged on an inner wall of the base pipe. The thickness of the aluminum pipe is from one fourth to one second of that of the base pipe. Due to the fact that the external-fin-type heat exchange pipe consists of the base pipe and the aluminum pipe sleeved on the base pipe, materials of the base pipe body can be selected correspondingly according to characteristics of fluid medium; due to good heat conduction performance of the aluminum pipe and good corrosion-resistant performance arisen from an oxidation film on the surface of the aluminum pipe in a gaseous environment, the external-fin-type heat exchange pipe can be well adapted to different fluid medium environments on the premise of guaranteeing heat exchange efficiency.

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