Mixing device for gas-liquid two-phase annular flow jet flow and main flow gas

Abstract

The invention discloses a mixing device for gas-liquid two-phase annular flow jet flow and main flow gas. The mixing device comprises a main flow pipeline and an annular flow jet flow pipe communicated with the side wall of the main flow pipeline. A gas-liquid mixer is arranged on the upper reaches of the annular flow jet flow pipe in the circumferential direction. Inlets of the gas-liquid mixer are communicated with honeycomb-shaped holes formed in the side wall of the annular flow jet flow pipe. When the mixing device is used, a liquid working medium enters the gas-liquid mixer and then enters the annular flow jet flow pipe through the honeycomb-shaped holes. Gas-liquid two-phase annular flow is formed after the liquid working medium is mixed with a gas working medium in the annular flow jet flow pipe, and a liquid film is formed on the inner wall of the annular flow jet flow pipe. After the gas-liquid two-phase annular flow jet flow and the main flow gas in the main flow pipeline are mixed, atomization is completed to form an atomized droplet cluster. According to the mixing device, in the jet flow mixing process, the interaction between the gas-liquid two-phase annular flow jet flow and the main flow gas is used; a good atomization effect can be achieved through the gas-liquid two-phase annular flow jet flow, and accordingly good mixing between the gas-liquid two-phase annular flow jet flow and the main flow gas is achieved.

Description

Technical field: [0001] The invention relates to a technology for optimizing gas-liquid jet mixing structure, in particular to a mixing device for gas-liquid two-phase annular flow jet and mainstream gas. Background technique: [0002] The mixing of liquid jet and air flow is an important way to enhance multiphase flow and heat transfer, and has great application requirements in civil and national defense fields. The interaction between the jet and the main fluid induces a multi-scale complex vortex structure in the flow field, and uses the entrainment and entrainment between the fluids to promote the mixing of components and heat to achieve the purpose of uniform mixing. For example, the common combustion technology in the field of energy and power engineering uses jets to fully mix fuel and oxidant (such as air) to improve combustion efficiency; another example is the common chemical reaction technology in the chemical industry, which often uses jet feeding to promote rapi...

AI Technical Summary

Problems solved by technology

Due to the existence of various flow patterns of gas-liquid two-phase flow and the complexity of the flow state, no gas-liquid two-phase flow jet has been found at home and abroad.

In order to facilitate control, in the actual blending process, the gas jet and the liquid jet are usually introduced into the blending system by two sets of supply systems, which has brought great limitations to the compact design and economical efficiency of the system equipment

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