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Inverted-V-shaped multi-stage mixed array structure for passive micromixer

An array structure, micro-mixer technology, applied in mixers, chemical instruments and methods, dissolution and other directions, can solve the problems of destroying the liquid flow state, low mixing efficiency of passive micro-mixers, etc., to enhance the mixing effect and shorten the mixing time. , the effect of simple structure

Active Publication Date: 2017-01-04
苏州含光微纳科技有限公司
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Problems solved by technology

[0007] Aiming at the problem of low mixing efficiency of passive micro-mixers, the present invention discloses an inverted V-shaped multi-stage mixing array structure for planar passive micro-mixers. By making

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  • Inverted-V-shaped multi-stage mixed array structure for passive micromixer
  • Inverted-V-shaped multi-stage mixed array structure for passive micromixer
  • Inverted-V-shaped multi-stage mixed array structure for passive micromixer

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[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described through specific embodiments and drawings below.

[0024] figure 1 It is a schematic diagram of the inverted V-shaped multi-stage hybrid array structure of the present invention and the flow mode of the microfluid in the structure. The specific description of the structure is as follows:

[0025] 1. The inverted V-shaped multi-stage hybrid array structure used in the passive micro-mixer is arranged in the flow channel in an inverted V shape by rectangular baffles, and the opening direction of the V-shaped structure is opposite to the fluid flow direction. The baffle in the present invention is preferably rectangular, which has a good mixing effect, but the present invention is not limited by this. In other embodiments, baffles of other shapes can also be used. In the inverted V-shaped multi-level baff...

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Abstract

The invention relates to an inverted-V-shaped multi-stage mixed array structure for a passive micromixer, in particular to microfluidic mixing in a micro total analysis system and a microfluidic chip and the related fields. The inverted-V-shaped multi-stage mixed array structure is formed by a rectangular array, wherein a plurality of baffles are sequentially arranged at equal interval in parallel according to a V shape, and the spacing distances between the baffles and the side walls of a channel are sequentially decreased. Compared with a planar passive micromixer of which the channel appearance is only changed, the passive micromixer with the inverted-V-shaped multi-stage mixed array structure has the advantages that a vortex structure, a flow dividing and converging structure and a cross-shaped mixing structure are additionally arranged, and the mixing efficiency of microfluid in the channel is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of microfluidic system control, and in particular relates to an inverted V-shaped multistage mixing array structure for a passive micromixer. Background technique [0002] Since the micro total analysis system (μTAS, Micro total analysis systems) was proposed in the 1990s, the microfluidics chip as an important component is a system that integrates sampling, dilution, mixing, reaction, detection, and separation. With its small size, low cost, portability, low sample consumption, fast reaction rate, high analysis accuracy and many other advantages, it has wide application prospects in chemical engineering, biological detection, portable medical care and other fields. [0003] As an important component of the microfluidic chip with the main functions of analysis and detection, the micromixer plays a vital role in the realization of the function of the microfluidic chip. For example, in application fields such...

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Application Information

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IPC IPC(8): B01F13/00
CPCB01F33/3034B01F2101/23
Inventor 吴烨娴吴永进孟伟宋璐陈兢
Owner 苏州含光微纳科技有限公司
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