Cavitating Impeller Layout for Batch Fluid Particle Reduction
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Solution Overview
Problem
Existing turbo emulsifiers and cavitation reactors are inefficient for batch fluid treatment, as they either lack the structure for continuous flow or are not designed for batch operation, limiting the efficiency of particle size reduction and distribution.
Innovation Solution
A cavitation impeller is mounted on a rotation shaft within a tank to create cavitation in a static fluid mass, enhanced by increasing rotation speed, pressure, and impeller design, optionally with a second pumping impeller to increase fluid pressure and promote convective motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a cavitation reactor with continuous flow structure is used, then cavitation intensity and particle size reduction efficiency are improved, but the system cannot perform batch operation and device complexity increases
Solution Approach 1:
The invention extracts the essential cavitation function from the continuous flow reactor structure and applies it to a batch processing system. The cavitation impeller is designed to create cavitation in a static fluid mass within a tank, eliminating the need for continuous flow infrastructure while maintaining particle size reduction efficiency.
Solution Approach 2:
The cavitation impeller serves multiple functions: it creates cavitation for particle size reduction, generates convective stirring motions for uniform distribution, and can be configured with curved blades to enhance cavitation intensity. This multi-functionality replaces the need for separate continuous flow systems.
2Ease of operation
If traditional turbo emulsifiers with propeller stirring are used, then batch operation is possible, but cavitation intensity is insufficient and particle size reduction efficiency is low
Solution Approach 1:
The invention changes the operational parameters by using a cavitation impeller with curved blades instead of a traditional propeller. The curved blade design and increased rotation speed generate sufficient cavitation intensity to achieve effective particle size reduction while maintaining batch operation capability.
Solution Approach 2:
The cavitation impeller generates mechanical vibrations and cavitation bubbles in the fluid, which collapse to create micro-jets and shock waves that efficiently reduce particle size. This mechanical action is much more effective than simple propeller stirring.
3Manufacturing precision
If impeller rotation speed is increased to enhance cavitation, then cavitation intensity and particle size reduction are improved, but energy consumption increases
Solution Approach 1:
The curved blade design of the cavitation impeller optimizes fluid flow and cavitation generation. The curved geometry allows the impeller to achieve effective cavitation at lower rotation speeds compared to traditional straight-blade impellers, reducing energy consumption while maintaining particle size reduction efficiency.
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 system achieves efficient particle size reduction and uniform distribution in a batch process with reduced energy consumption and improved cavitation intensity.
Implementation Method 1
Driving the cavitating impeller, the cavitation phenomenon may be obtained inside the tank, with advantageous effects of reducing the particle size in the fluid mass
Implementation Method 2
making curved blades in the cavitating impeller, rotating them with an orientation of rotation such that a concave face of the blade precedes a convex face
Data Source
AI summary
A fluid treatment system (1), such as a turbo emulsifier, comprises a tank (2) for containing a static fluid mass. A rotation shaft (3) is rotated by a motor (4). A cavitating impeller (5) is mounted to the rotation shaft (3), inside a compartment (21) of the tank (2), so as to be immersed in the fluid mass. The impeller (5) has a pair of walls (51), a gap (53) delimited by inner faces (54) of the walls (51), and blades (56) arranged in the gap (53).