Vapor-liquid two-phase flow mixer

Abstract

The invention discloses a vapor-liquid two-phase flow mixer, which is characterized in that: the vapor-liquid two-phase flow mixer has a bidirectional taper structure, and comprises an input end taper, an output end taper and a tube arranged between the input end taper and the output end taper; and riflings with opposite spiral directions are arranged in the input end taper and the output end taper. The mixer can further granularly mix vapor-liquid two-phase flow and ejects the vapor-liquid two-phase flow at a high speed through a nozzle; when the vapor-liquid two-phase flow inflows through the nozzle, the two-phase flow is accelerated under the action of the tapers on the inner surface of the nozzle; meanwhile, the two-phase flow is rotated under the action of the riflings on the taper surfaces; and when the accelerated and rotated two-phase flow inflows the ejection end, the two-phase flow is forcibly reversed and diffused by the protruding inverted taper riflings, so that air bubbles in the two-phase flow are crushed to achieve the effects of fining granules and improving the gas dissolution rate, the granularity is 0.1 to 1.0mu m, the gas-liquid surface area is increased by 30times, and the gas dissolution rate is 95 to 99 percent.

Description

technical field [0001] The invention relates to a gas-liquid two-phase flow mixer, in particular to a mixing nozzle for further fine-graining the gas-liquid two-phase flow, and belongs to the technical field of two-phase flow gas-liquid fusion and spraying. Background technique [0002] Two-phase flow gas-liquid solution has many applications in industrial and agricultural production and daily life, such as ozone water preparation, water treatment dissolved oxygen and air flotation, oxygen-enriched water preparation, etc. In this process, the gas needs to be maximized Soluble in liquid to a limited extent. There are many methods of dissolving air, the most important ones are container pressurization, multi-type mixing nozzles, stirring, membrane absorption, special physical methods and a small amount of chemical methods or the cross synthesis of these methods, among which mixing nozzles are the most widely used. There are as many as thousands of known gas-liquid two-phase f...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the fluid is not rotated and ejected in the nozzle, and the gas phase particles produced are relatively large; the utility model patent "Adjustable Spiral Bubble Mixing Nozzle" (application number: 200920180006.6, application date: 2009-10-21) was published It is mainly composed of gas inlet joints, rotary seats, glands, gaskets, bases, inner tubes, outer tubes, bubble generators, sealing gaskets, spiral channels, shrinking and expanding nozzles and liquid inlet connectors. The structure is relatively complex, and a nozzle that can fully dissolve gas and liquid and realize small particles in the gas phase and has a simple structure becomes necessary

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