一种永磁同步同轴双层叶轮片冷却塔轴流风机及冷却塔

By designing a permanent magnet synchronous coaxial double-layer impeller cooling tower axial flow fan, adjusting the impeller blade deflection angle and water curtain structure, the contradiction between cooling tower noise and efficiency is resolved, achieving low-noise and high-efficiency heat dissipation.

CN121273658BActive Publication Date: 2026-07-17ZHAOQING YONGWANG TEXTILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

While pursuing high cooling efficiency, existing cooling towers have not effectively solved the noise problem, and traditional noise reduction methods often come at the cost of sacrificing cooling tower performance.

Method used

The cooling tower axial flow fan adopts permanent magnet synchronous coaxial double-layer impeller blades. By adjusting the deflection angle and number of impeller blades, combined with water curtain design, it can achieve active noise reduction and improve wind energy capture capability, reduce noise and maintain efficient heat dissipation.

Benefits of technology

While meeting the air volume requirements of the cooling tower, it significantly reduces noise levels, improves fan efficiency, and accelerates heat dissipation through water curtain design, reduces water droplet vibration noise, and simplifies the water curtain replacement and cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于冷却塔技术领域,尤其是一种永磁同步同轴双层叶轮片冷却塔轴流风机及冷却塔,针对现有技术中的冷却塔在运行时噪声较大的问题,现提出以下方案,包括支撑风筒,所述支撑风筒的圆周内壁固定有两个互相对称的安装块,且两个安装块之间固定有两根开口相背且互相平行的安装横梁。本发明通过设置的顶层轴流风机一和底层轴流风机二,配合套接在三棱管外壁能够调节整体偏角的叶轮片,提高了同等转速下设备的风能捕获能力,并且通过尽可能降低输出轴转速,并相应加大叶轮片弦长、增加叶轮片数量或调整叶轮片安装角等措施,实现了永磁同步电机的主动降噪,获得更低噪声效果,从而降低配套冷却塔的整体噪声。
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Citation Information

Patent Citations

  • Low-noise coaxial double-impeller cooling tower axial flow fan

    CN109281850A

  • Adjustable axial flow fan blade

    CN217633097U

  • High-efficiency counter-flow cooling tower for pharmacy

    CN218764830U