增强管内的湍流器

By combining flattened fins and internal spiral fins on the outer and inner surfaces of the heat exchange tube, and installing a turbulence generator on the inner surface, the problem of insufficient heat transfer efficiency of existing heat exchangers under low temperature and low flow characteristics conditions is solved, achieving a significant improvement in heat transfer coefficient and an expansion of the applicable fluid range.

CN115046419BActive Publication Date: 2026-07-17TRANE INTERNATIONAL INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TRANE INTERNATIONAL INC
Filing Date
2015-09-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing heat exchangers offer limited improvement in heat transfer efficiency on both the tube and shell sides, especially under low temperature and low flow characteristics, making it difficult to significantly improve the heat transfer coefficient through a single surface feature.

Method used

The heat exchange tube employs a combination of flattened fins and internal spiral fins on its outer and inner surfaces, with a turbulence generator installed on the inner surface to enhance the turbulence of the fluid flow and improve heat transfer efficiency.

Benefits of technology

It significantly improves the heat transfer coefficient of the heat exchanger, with a gain of 15% to 30%, and expands the applicable range of working fluids, especially performing well under low temperature and low flow characteristics conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及增强管内的湍流器。一种热交换管将外部表面特征和内部表面特征结合,例如具有压扁的翅片和空腔的外部表面特征(这样的外部表面特征可具有极高的沸腾增强特性)和具有高性能交叉螺旋(例如,具有交叉螺旋角的“网纹”)的内部表面特征。这种新型管可在壳管式蒸发器中提供高性能管,其相对更小、更具效率、并且可使用相对较低的制冷剂装料。
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