Multi-stage extruded spiral mixed jet aerator and jet aeration method

The innovative design of the multi-stage extrusion spiral mixing jet aerator solves the problems of poor mixing effect and low oxygen mass transfer efficiency of jet aerators, achieving efficient gas-liquid mixing and oxygen transfer, and improving the performance of the wastewater treatment system.

CN122277005APending Publication Date: 2026-06-26SHAANXI UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Filing Date
2026-04-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing jet aerators cannot simultaneously achieve high-intensity mixing and high oxygen mass transfer efficiency, resulting in poor mixing or failure to fully realize oxygen mass transfer potential, thus limiting the performance improvement of wastewater treatment systems.

Method used

The multi-stage extrusion spiral mixing jet aerator, including a water inlet pipe, an air inlet pipe, an extrusion mixing chamber, a double-spinning spiral ribbon mixing chamber, and a six-pronged rotating nozzle, achieves multi-stage pretreatment, mixing, and shearing of gas-liquid-solid multiphase fluids through designs such as spiky grids, guide cloud soft rings, segmented textured extrusion ball bowls, and inner and outer double-layer spiral ribbons, thereby promoting bubble breakage and oxygen transfer.

Benefits of technology

It increases the gas-liquid contact area and mixing uniformity, enhances oxygen transfer efficiency, solves the problems of poor mixing effect and low oxygen mass transfer efficiency, and improves the overall performance of the wastewater treatment system.

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Abstract

This invention discloses a multi-stage extrusion spiral mixing jet aerator, comprising an extrusion mixing chamber, one end of which is connected to a water inlet pipe, and an air inlet pipe connected to the side wall of the extrusion mixing chamber. A double-spinning spiral mixing chamber is connected to the end of the extrusion mixing chamber away from the water inlet pipe. An accelerating conical tube is connected to the end of the double-spinning spiral mixing chamber away from the extrusion mixing chamber, and a six-pronged rotating nozzle is connected to the end of the accelerating conical tube away from the double-spinning spiral mixing chamber. This invention also discloses a jet aeration method using the multi-stage extrusion spiral mixing jet aerator. This invention can synergize multiple mixing methods while simultaneously possessing bubble refinement and oxygen transfer acceleration capabilities, comprehensively improving the overall efficiency of wastewater treatment systems and solving the problems of poor mixing effect and low oxygen transfer rate in current jet aerators.
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