Multi-Stage Hydrodynamic Cavitation Device for Fluid Processing
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Solution Overview
Problem
Current fluid processing technologies, such as acoustic and ultrasound cavitation, are inefficient for continuous processing of complex mixtures and non-Newtonian viscous liquids, requiring high energy and resulting in uneven alterations due to batch environments and low energy density, which is detrimental for industries seeking rapid and cost-effective fluid upgrading.
Innovation Solution
A multi-stage flow-through hydrodynamic cavitation device with optimized pressure and temperature conditions, utilizing multiple cavitation zones with specific designs like central vortex chambers, turbulizer disks, and radial multi-jet nozzles to generate uniform cavitation fields, allowing for consecutive applications of high pressure and heat for efficient fluid alteration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If acoustic and ultrasound cavitation are used for fluid processing, then chemical reactions and processes are initiated and accelerated, but energy consumption is high and processing efficiency is low for continuous operations
Solution Approach 1:
The device divides the fluid processing into multiple sequential cavitation zones (first, second, and third zones) along the flow path, each generating cavitation bubbles that collapse in subsequent zones. This segmentation enables continuous processing while maintaining high reaction acceleration capability through staged energy input.
Solution Approach 2:
The hydrodynamic cavitation device maintains continuous fluid flow through the multiple cavitation zones, ensuring uninterrupted processing. The design allows constant generation and collapse of cavitation bubbles along the flow path, providing continuous useful action without batch interruptions.
2Productivity
If high pressure and temperature are applied to enhance cavitation effects, then chemical conversions are expedited, but excessive heat release may become detrimental to product quality and safety
Solution Approach 1:
The processing is divided into multiple zones where pressure and temperature conditions are optimized for each stage. The first zone generates initial cavitation, the second zone enhances collapse intensity for rapid conversion, and the third zone provides controlled finishing. This segmentation prevents excessive heat release by distributing energy input across zones rather than concentrating it in a single high-intensity zone.
Solution Approach 2:
The device utilizes changes in pressure and temperature parameters across different cavitation zones to control the cavitation process. By carefully adjusting these parameters in each zone, the system achieves high chemical conversion rates while preventing detrimental excessive heat release through controlled parameter transitions.
3Adaptability or versatility
If batch processing environments are used, then acoustic cavitation can be applied, but energy density is low and alterations are uneven
Solution Approach 1:
The continuous flow-through design ensures uniform exposure of all fluid portions to cavitation zones, eliminating the uneven alterations characteristic of batch processing. Every element of the fluid passes through the same sequence of cavitation zones, ensuring consistent and uniform processing throughout the entire volume.
4Productivity
If complex fluids are processed with conventional methods, then some chemical conversions occur, but processing time is excessive and energy costs are high
Solution Approach 1:
The multi-zone cavitation device processes complex fluids through staged cavitation events, with each zone contributing to progressive breakdown and conversion. This segmentation achieves complete fluid upgrading in a single continuous pass, dramatically reducing processing time compared to conventional single-stage or batch methods while lowering energy costs through optimized energy distribution.
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 device achieves efficient and uniform alteration of fluid properties and chemical composition with reduced energy consumption and equipment costs, enabling rapid processing of complex fluids, improving productivity and handling of upgraded products.
Implementation Method 1
the flow accelerates causing its pressure to drop (Bernoulli's principle). This results in the formation of bubbles composed of the vapors of compounds that boil at given condition
Implementation Method 2
When the bubbles move beyond the boundary of the localized zone, the pressure in the flow increases, and the bubbles collapse, exposing the vapors found within to a high pressure and temperature, shearing forces, shock waves
Implementation Method 3
The implosion is accompanied by drastic jump in both pressure and temperature, up to 1,000 atm and 5,000° C., correspondingly, and results in the formation of the local jet streams with the velocities of 100-m/s and higher
Data Source
AI summary
A method for processing a fluidic mixture in a multi-stage hydrodynamic cavitation device is disclosed. The fluidic mixture is introduced to an inlet and passed through a flowpath having at least ten cavitation zones. The fluidic mixture is exposed to cavitation inducing features in each of the at least ten cavitation zones to induce cavitation bubbles, which bubbles are then collapsed between every two adjacent of the at least ten cavitation zones. The multi-stage hydrodynamic cavitation device for processing the fluidic mixture has a generally cylindrical housing with an inlet, an outlet, a flowpath therebetween, and a plurality of cavitation zones along the flowpath. Two or more of the cavitation zones along the flowpath comprise a disk multi-jet nozzle having a plurality of through channels disposed across the surface thereof, wherein each channel includes expansions and contractions of its cross-sectional area along its length.