Nano-Micro Bubble Generator Rotor-Stator Cavitation
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Solution Overview
Problem
Existing technologies fail to effectively generate ultra-fine bubbles through multiple collisions and friction in fluids, limiting their application in fields such as water treatment and gas dissolution.
Innovation Solution
A nano-micro bubble generator is designed with a housing containing rotors and stators in a mesh structure, along with a bubble generation unit and flow path, to create collisions, friction, and cavitation, generating nano and micro bubbles by enhancing gas dissolution and pulverization within the fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional bubble generation methods are used, then bubbles are generated in water, but the bubbles are large in size and rise quickly to the surface, failing to maintain dissolved state
Solution Approach 1:
The invention divides the bubble generation process into multiple stages using a multi-stage rotor-stator structure. Each stage further subdivides the bubbles into smaller sizes through repeated collisions and friction, ultimately producing nano-bubbles with diameters of 100 nm or less that can remain stable in water for extended periods.
Solution Approach 2:
The invention employs rotating rotors and stationary stators that create dynamic mechanical forces including collisions, friction, and cavitation. The rotational motion generates intense shear forces that continuously break down bubbles into smaller sizes, transforming the static bubble generation process into a dynamic multi-stage pulverization system.
2Productivity
If high-speed rotation of rotors is used to generate nano bubbles, then bubble generation efficiency increases, but energy consumption increases
Solution Approach 1:
The energy input is segmented into multiple stages across several rotor-stator pairs, with each stage contributing to progressive bubble size reduction. This distributed energy application is more efficient than single-stage high-energy input, as each stage builds upon the previous one to achieve cumulative pulverization效果.
Solution Approach 2:
The continuous rotation of rotors and the sequential arrangement of multiple rotor-stator stages ensure continuous mechanical action on the bubbles throughout their passage through the device. This continuous multi-stage processing maintains high productivity while distributing energy consumption across multiple controlled interaction zones.
3Manufacturing precision
If multiple rotor-stator stages are used to generate ultra-fine bubbles, then bubble size is reduced to nano scale, but device complexity increases
Solution Approach 1:
Each rotor-stator stage is designed with universal functionality, where the rotor and stator components serve multiple purposes: generating shear forces, creating cavitation, and facilitating bubble collisions. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity despite multiple stages.
Solution Approach 2:
The rotor-stator stages are arranged in a nested or sequential configuration where each stage is integrated within the overall device structure. The rotors rotate within the housing, and stators are positioned concentrically or adjacently, creating a compact nested arrangement that minimizes spatial complexity while achieving multi-stage processing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The generator effectively produces high-quality nano bubbles by increasing gas-in-water rates and maintaining bubble stability, enhancing applications in various industrial and environmental processes.
Implementation Method 1
the rotors and the stators are adjacently arranged to generate collisions, friction, and cavitation caused by rotation of the rotors in the fluid
Implementation Method 2
the rotors and the stators are adjacently arranged to generate collisions, friction, and cavitation caused by rotation of the rotors in the fluid
Data Source
AI summary
Provided is a nano-micro bubble generator according to one aspect of the present invention, the nano-micro bubble generator including: a housing which a fluid flows into and out of; a plurality of rotors rotatably coupled to the inside of the housing; and a plurality of stators fixed to the inside of the housing and alternately arranged with the plurality of rotors, wherein at least one of the rotors and the stators has a mesh-like structure in which a plurality of flow passages of the fluid are arranged in a lattice form, and the rotors and the stators are arranged to be adjacent to each other so as to generate a collision, friction, and cavitation due to rotation of the rotors in the fluid flowing through the flow passages, thereby generating at least one of nano bubbles and micro bubbles in the fluid.