A micro-mixer with columnar phyllotaxy arrangement and expansion structure

A micro-mixer and columnar technology, applied in the field of micro-mixers, can solve problems such as difficult mixing and small characteristic size of micro-mixers, and achieve the effect of improving mixing efficiency

Inactive Publication Date: 2018-01-02
SHENYANG LIGONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 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 a laminar flow state, making it difficult to mix quickly and effectively

Method used

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  • A micro-mixer with columnar phyllotaxy arrangement and expansion structure
  • A micro-mixer with columnar phyllotaxy arrangement and expansion structure
  • A micro-mixer with columnar phyllotaxy arrangement and expansion structure

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Embodiment Construction

[0039] 1) First determine the function requirements of the micro-mixer image 3 The width, length and cavity depth of the mixing zone 13 on the middle mixing channel plate 20, and the cavity depth is equal to the micro cylinder height.

[0040] 2) According to figure 1 and figure 2 The expanded form diagram of the Van Iterson model in the XOZ coordinate system, with image 3 A corner of the mixed region 13 in the XOZ coordinate system is arranged as a micro cylinder to arrange the coordinate origin, and the micro cylinder 14 is designed to be image 3 The phyllotaxy arrangement pattern in . And the corresponding liquid discharge chamber 15 and liquid inlet chamber 16 are provided. The diameter d of the micro cylinder is controlled within the range of Φ0.5 mm to Φ1.5 mm, and the height h of the micro cylinder is within the range of 0.05 mm to 0.2 mm.

[0041] 3) Design out separately Figure 4 The upper input plate 19 in the middle, and give the circular mixed liquid input...

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Abstract

A micro-mixer with a columnar phyllotaxy arrangement and expanded structure, comprising an upper input plate, a mixing channel plate and a plurality of micro cylinders, the upper input plate and the mixing channel plate cover a plurality of micro cylinders inside, and it is characterized in that, The arrangement of the micro cylinders in the mixing channel conforms to the arrangement of the Van Iterson model that satisfies the phyllotaxy arrangement theory in biology. Since the arrangement of the micro cylinders satisfies the arrangement of the Van Iterson 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. When the two liquid flows being mixed When passing through the channel, the mixing efficiency of the liquid is improved.

Description

technical field [0001] The invention relates to a mixer, in particular to a micro mixer with columnar phyllotaxy arrangement and unfolding 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 "miniature 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, detection, etc. On a microchip that can be used multiple times. The structure of the micro-mixer channel is one of the important research directions of microfluidic analysis chip. Microfluidic analysis chip plays an important role in the fields of microfluidic technology, biomedical system, and analytical chemistry. [0003] Fluid mixing is the process of mixing two or more different fluids together to form a homogeneous mixture through stirring or other physical processes. Fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F13/00B01F3/08
Inventor 吕玉山王军舒启林刘石磊
Owner SHENYANG LIGONG UNIV
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