Microminiature mixing device for strengthening fluid mixing by micronization boiling of steam bubbles

Abstract

The invention provides a microminiature mixing device for strengthening fluid mixing by micronization boiling of steam bubbles. The microminiature mixing device comprises a steam bubble micronization boiling heating part, a microminiature mixing channel, water boxes, temperature control boxes, pumps, flowmeters, a mixing liquid storing box and a liquid waste box, wherein the microminiature mixing channel is a herringbone tiny pipeline and comprises two inlets and an outlet; the two water boxes are connected with the two inlets of the microminiature mixing channel respectively, and the outlet of the microminiature mixing channel is connected with the mixing liquid storing box and the liquid waste box; the steam bubble micronization boiling heating part is fixed outside the microminiature mixing channel, and connecting pipelines of the two water boxes and the microminiature mixing channel are provided with the temperature control boxes, the pumps and the flowmeters. The microminiature mixing device provided by the invention overcomes the defects that the mixing time of a static minitype mixing device is too long, the mixing effect is poor, the process of a flowing pipeline is complex, and the pipeline is prone to blockage.

Description

technical field [0001] The invention relates to a micro-miniature fluid mixing device, in particular to a device which utilizes the miniaturized boiling phenomenon of vapor bubbles to strengthen stratified fluid mixing in micro-miniature pipelines. It is mainly used for micro-fluid mixing devices in the fields of chemical analysis, biological and chemical sensing, molecular separation, nucleic acid sequencing, and analytical environment monitoring. Background technique [0002] The micro-mixing device refers to a micro-fluidic device system that realizes the mixing of different fluids in a micro-channel, and its purpose is to reduce the non-uniformity of the fluid. Because in the fields of chemical industry, biology, medicine, biochemistry and microelectronics, more and more researchers are paying attention to and studying the heat exchange and flow in tiny pipes. Since the size of the microchannel is very small, about in the range of 0.01mm to 10mm, the Reynolds number Re=...

AI Technical Summary

Problems solved by technology

[0005] For the existing static mixing device, the mixed fluid only relies on molecular diffusion, so the mixing time of the static mixing device is too long, the mixing effect is poor, and it is easy to cause blockage in the pipeline

The disadvantages of dynamic micro-mixing devices realized by driving methods such as ultrasonic waves, electric fields, and magnetic forces are that the driving voltage is too high, which does not match the power of micro-devices, and the production cost is high. It is only suitable for polar or magnetic liquids, etc.

Therefore, most of the current micro-mixing devices are subject to great constraints in application.

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