一种偏移蛇形被动式微混合器

CN118594328BActive Publication Date: 2026-07-17WEIFANG MEDICAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WEIFANG MEDICAL UNIV
Filing Date
2024-07-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing micromixers suffer from laminar flow due to their small channel size, resulting in long mixing times and the need for large sample volumes. Furthermore, the non-optimized internal structure design of passive micromixers leads to significant flow losses.

Method used

Design an offset serpentine passive micro-mixer comprising an inlet channel, a first straight channel, a topological mixing unit, and a second straight channel connected in sequence. Utilize the Dean's vortex principle and the offset channel to enhance fluid disturbance and achieve efficient mixing through multiple confluence, splitting, and collision processes.

Benefits of technology

By utilizing multiple fluid collisions and the Dean vortex phenomenon, fluid mixing efficiency is improved, mixing time is shortened, and sample volume requirements are reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118594328B_ABST
    Figure CN118594328B_ABST
Patent Text Reader

Abstract

本发明属于微流体混合技术领域,尤其涉及一种偏移蛇形被动式微混合器,依次连通的入口通道、第一直通道、拓扑混合单元以及第二直通道;拓扑混合单元包括互为镜像结构的第一拓扑通道和第二拓扑通道;第一拓扑通道包括依次连通的下弯管通道、非对称迪恩涡混合通道以及上弯管通道;非对称迪恩涡混合通道为一个弯管通道被两个半径相同、圆心不同、所对应圆心角相同的扇形以及两个蛇形曲线所截后,形成的发散‑收缩‑发散结构。本发明的偏移蛇形微混合器通过设置圆弧形的拓扑通道,利用迪恩涡原理,使流体产生离心力,从而产生二次流,增加流体的扰动;通过设置偏移通道,使流体产生碰撞,增加流体的接触,从而提高流体混合效果。
Need to check novelty before this filing date? Find Prior Art