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Mini mixer capable of uniform mixing gas mixture rapidly, and preparation method

A uniform mixing and micro-mixer technology, which is applied in mixing methods, fluid mixers, chemical instruments and methods, etc., can solve problems such as unsatisfactory quantity requirements and small size, and achieve enhanced mixing performance and increased contact area , is conducive to the effect of gas mixing

Inactive Publication Date: 2007-12-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the size of this micro-mixer is small, which is only suitable for the mixing of molecules, and cannot meet the requirements of general reactions.

Method used

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  • Mini mixer capable of uniform mixing gas mixture rapidly, and preparation method
  • Mini mixer capable of uniform mixing gas mixture rapidly, and preparation method
  • Mini mixer capable of uniform mixing gas mixture rapidly, and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Embodiment: Application of the new T-shaped micro-mixer in the micro-thermal photoelectric system

[0016] In the micro-thermal photoelectric system, hydrogen and oxygen mixed in advance are required, and the mixed gas is introduced into the combustion tube for combustion. Therefore, the micro-mixer for mixing is more important, and the micro-mixing channel of the present invention adds convex The new micro-mixer of the ridge (2) enables fast and relatively uniform mixing. Firstly, on a 20×10×0.5mm silicon plate (3), an incomplete T-shaped groove with a depth of 250 μm and 6 cube ridges with a side length of 250 μm is obtained by photolithography and etching, and the length of the mixing channel is It is 16mm wide and 0.5mm wide, and then bonded with 7740 heat-resistant glass with a thickness of 500μm and a diameter of 2mm holes corresponding to the three ports of the T-shaped micro-mixer, making it a closed micro-pipe , make a good interface on the hole, plug in the t...

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PUM

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Abstract

The invention publishes a micro mixer which can uniform mix gas fast and its preparation method, it involves the gas-mixing area of technology, it has joined the raised ridge in the original miniature T mixer's hybrid channel, the height of the raised ridge is consistent with the depth of the hybrid channel, the raised keel's width is half as large as hybrid channel, and the length is consistent with the width. The raised ridge distributes dividable along the both sides of the mixed channel, there has been a raised ridge's width between the neighboring raised ridge, and arranges separately. The number of the raised ridge lies on the hybrid channel's length, n= (l-3) / 2l1, n expresses the raised ridge's integer, l expresses hybrid channel's length, l1 is the raised keel's length of side. The design advantages of the invention is: join the raised ridge after the hybrid channel may cause the two gases to be pressed when they flow through the raised ridge to reduce the distances between them, it can help to mix the diffusion; and because the speed increases when the gas flow through the raised ridge, it can easily produce the eddy current and increase the two contacted areas, and it is also good to mix the gases; in addition, it may produce backflow near the downstream of the raised ridge, and strengthens the two gas mixed performance.

Description

technical field [0001] The invention relates to the technical field of gas mixing, in particular to a micro-mixer capable of rapidly and uniformly mixing gas and a preparation method thereof. Background technique [0002] Since the 1990s, with the rapid development of nanomaterials and microelectromechanical systems, a lot of research has been done in the field of small-scale and fast processes. The micro-hybrid device is an important executive device in the micro-chemical industry, which has the characteristics of high efficiency, fast response time, and less reagent consumption. So predecessors have done a lot of research on it. [0003] Micro-mixers are generally divided into two types: active and passive. Active mixers have an external disturbance source, while passive mixers generally only need a pressure source to cause fluid flow, and can achieve rapid mixing without an external power source. The most studied passive mixer in the world is the micro-T mixer. It is fo...

Claims

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Application Information

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IPC IPC(8): B01F5/06B01F3/02B01F23/10
Inventor 丁建宁马春红潘剑峰程广贵
Owner JIANGSU UNIV
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