A stirring paddle chaotic control system and method considering size-rotation speed non-commensurate constraint

By introducing non-commensurability parameter design into the multi-axis stirring system, the periodic synchronization and scale locking are broken, forming non-periodic or chaotic flow, which solves the problem of low mixing efficiency in the multi-axis stirring system and realizes a high-efficiency and uniform mixing and mass transfer process.

CN122399653APending Publication Date: 2026-07-17CHONGQING UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV
Filing Date
2026-04-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing multi-axis stirring systems suffer from problems such as insufficient period synchronization, scale locking, and flow field disturbance in high-viscosity fluids and complex multiphase systems, resulting in low mixing efficiency and low energy utilization efficiency.

Method used

By adopting incommensurable parameter design, and setting the incommensurable proportional relationship between the characteristic size of the impeller and the rotation speed, the periodic synchronization state is avoided, forming an aperiodic or chaotic flow structure, which enhances the macroscopic cycle destruction capability and the microscopic shear disturbance intensity.

Benefits of technology

Without increasing energy consumption and structural complexity, it significantly improves mixing efficiency and mass transfer performance, and is suitable for high-viscosity fluids and complex multiphase systems.

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Abstract

本发明公开了一种基于尺寸‑转速非公度协同设计的多轴搅拌混沌强化方法及控制系统。该方法通过设计多个搅拌桨的特征尺寸,使任意两个搅拌桨的特征尺寸之比构成非公度比例关系,并建立特征尺寸与转速之间的映射关系,使各搅拌桨之间的转速比例或特征尺寸‑转速耦合关系构成非公度参数关系,从而避免多轴搅拌系统中的周期同步与尺度锁定现象。通过对各搅拌轴进行独立驱动,使搅拌容器内形成非周期或混沌流动结构,增强流体的宏观循环与微观剪切作用。与现有技术相比,本发明在不显著增加能耗和结构复杂度的前提下,可有效提高混合效率与传质性能,适用于高黏度流体及多相体系等的强化混合过程。
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