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A micro-mixer with end-face phyllotaxy arrangement structure

A micro-mixer and end-face technology, applied in the field of microfluidic analysis chips, can solve the problems of small feature size, difficulty in mixing quickly and effectively, and achieve the effect of improving mixing efficiency

Inactive Publication Date: 2017-07-18
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Diffusion is caused by the Brownian motion of molecules, which drives the fluid molecules to diffuse from high concentration to low concentration. Due to the small characteristic size of the micro-mixer, the Reynolds number Re of the fluid in the micro-mixer is generally less than 100, and it is almost always in laminar flow. state, difficult to mix quickly and efficiently

Method used

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  • A micro-mixer with end-face phyllotaxy arrangement structure
  • A micro-mixer with end-face phyllotaxy arrangement structure
  • A micro-mixer with end-face phyllotaxy arrangement structure

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Embodiment Construction

[0034] A micro-mixer with an end-face phyllodes sequence structure includes an upper input plate 17, a mixing channel plate 18 and a lower output plate 19.

[0035] A mixing area 12 is opened in the middle of the mixing channel plate 18, a plurality of micro-cylinders 13 are integrally arranged on the end surface of the mixing area 12, and the cavity depth of the mixing area 12 is equal to the height of the plurality of micro-cylinders 13.

[0036] The upper surface of the plurality of micro cylinders 13 is in contact with the lower surface of the upper input board 17.

[0037] The edge of the mixing area 12 is provided with a plurality of drainage micropores 14.

[0038] The upper input plate 17 is provided with a mixed liquid input hole 20.

[0039] The lower output plate 19 is provided with a liquid collection cavity 22, and below the liquid collection cavity 22 is a mixed liquid output hole 21 opened on the lower output plate 19.

[0040] The upper input plate 17 and the mixing chann...

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Abstract

A micro-mixer with a phyllotaxy arrangement structure on the end surface is a micro-mixer with a planar bionic surface structure in the field of microfluid mixing. The micro-mixer is composed of upper input plate, mixing channel plate and lower output plate. Its characteristic is that there are multiple micro cylinders in the circular mixing area of ​​the mixing channel plate to improve the mixing efficiency. The arrangement law of the microcolumns satisfies the H. Vogel model of the phyllotaxy theory in biological science. Since the arrangement of the micro cylinders satisfies the H. Vogel model, the arrangement of the micro cylinders in the mixing channel achieves geometric complementarity and maximum filling, and forms a liquid surrounding flow channel between the micro cylinders, thereby improving the mixing efficiency.

Description

Technical field [0001] The invention belongs to the technical field of microfluidic analysis chips, and is a micromixer with an end-face phyllodes arrangement structure. The mixing method of the micro mixer is passive mixing. Background technique [0002] The microfluidic analysis chip is the main development direction of the "Micro Total Analysis System" (μTAS) proposed in 1990. Its purpose is to integrate the functions of the entire laboratory, including sampling, dilution, reagent addition, reaction, separation, and detection. On a microchip that can be used multiple times. The structure of the micro-mixer channel is one of the important research directions of the microfluidic analysis chip. The microfluidic analysis chip plays an important role in the fields of microfluidic technology, biomedical systems, and analytical chemistry. [0003] Fluid mixing is the process of mixing two or more different fluids together and forming a homogeneous mixture through stirring or other ph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F13/00B01L3/00
Inventor 吕玉山王军舒启林刘石磊
Owner SHENYANG LIGONG UNIV