3D asymmetric division and combination structure passive type micromixer

An asymmetric, mixer technology, used in mixers, chemical instruments and methods, dissolution and other directions, can solve the problems of long time required, unfavorable mixing efficiency, etc., to improve mixing efficiency, increase mixing effect and mixing efficiency, The effect of increasing the contact area

Pending Publication Date: 2018-06-26
ZHEJIANG UNIV OF TECH
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the microscopic state, the mixed substances are mainly completed by diffusion, whi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 3D asymmetric division and combination structure passive type micromixer
  • 3D asymmetric division and combination structure passive type micromixer
  • 3D asymmetric division and combination structure passive type micromixer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] refer to Figure 1 to Figure 4 As shown, a passive micro-mixer with a 3D asymmetric split-and-close structure implemented in this case includes an upper substrate 1 and a lower substrate 2 arranged up and down, and the lower substrate 2 and the upper substrate 1 are both provided with an inlet channel 3 With the outlet flow channel 4, the upper base plate 1 and the lower base plate 2 are provided with an annular mixing unit communicating with the inlet flow channel 3 and the outlet flow channel 4, and the mixing unit includes a first arc-shaped flow channel 5, a second arc-shaped flow channel 6, the third arc-shaped flow channel 7, the fourth arc-shaped flow channel 8, the first straight-flow channel 9 and the second straight-flow channel 10, the first arc-shaped flow channel 5, the second arc-shaped flow channel 6 and the first straight channel 9 are arranged on the lower substrate 2, the first arc-shaped flow channel 5 and the second arc-shaped flow channel 6 communic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a 3D asymmetric division and combination structure passive type micromixer. According to the 3D asymmetric division and combination structure passive type micromixer, an uppermatrix and a lower matrix are combined firmly; a matrix is provided with a runner through etching; the runner comprises an inlet runner, circular mixing units, an outlet runner, and a straight runner; each circular mixing unit is composed of a large circular runner, a small circular runner, and a straight runner unit; the circular mixing units are arranged between the straight runner and the outlet runner in series; the straight runner and the outlet runner are arranged to be collinear; the annular mixing units are arranged along the axis direction at equal intervals; liquid is introduced into the runner through a runner inlet, separation of mixed flow is induced because of interface abrupt change in entering into the circular mixing units, a part fluid enters into a circular runner, andlaminar flow diffusion states are maintained, and another part fluid flows along the vertical direction, secondary flow and eddy generation, and flow line disturbance are caused because of the abruptreduction of the width when the fluid enters into the circular runner, in fluid separation and combination, collision and extrusion of the two fluid parts are caused because of the convection, so thatfull contact of the two fluid parts is realized.

Description

technical field [0001] The invention relates to the technical field of microfluid mixing in micro-mixing chips and biochips, in particular to a passive micro-mixer with a 3D asymmetric split-and-close structure. Background technique [0002] As an important part of the microfluidic system, the micromixer is widely used in the fields of drug preparation, chemical detection, cosmetic synthesis and other fields due to its fast and efficient mixing performance. Reagents, reducing the risk (such as strong exothermic or toxic reagent reactions). The size of the microchannel in the microfluidic micromixer ranges from tens to hundreds of microns. The fluid in the microchannel is usually in a laminar flow state, and its mixing is mainly achieved by molecular diffusion. For two or more fluids When mixing, it is difficult to fully mix the fluids, so it is very important to achieve efficient and fast mixing of fluids at the microscale. [0003] According to the principle of mixing pro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01F13/00
CPCB01F33/30
Inventor 鲁聪达薛浩陈炳斌袁峰张征
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap