Porous Media Injector With Vortex-Based Plugging Prevention
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Solution Overview
Problem
Porous media tends to plug injectors during non-operation due to the material flowing back into the fluid opening, causing processing challenges.
Innovation Solution
The injector is configured with a swirling/vortex chamber and an outlet positioned at a non-perpendicular angle, generating a rotational flow to prevent plugging by scouring away solid material and maintaining fluidization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the injector outlet is positioned vertically below the porous media, then the material flows back into the outlet opening under gravity during shutdown, but this causes plugging of the injector
Solution Approach 1:
The injector incorporates a swirling chamber with curved interior walls that generate rotational flow. This curved geometry causes the fluid to swirl and create a vortex that prevents solid material from settling and plugging the outlet, while still allowing vertical positioning for gravity-driven material flow during shutdown.
Solution Approach 2:
The swirling flow generated by the curved chamber creates dynamic motion that continuously disturbs the fluid and prevents static accumulation of solid particles at the outlet. This dynamic effect acts as a self-cleaning mechanism that prevents plugging without requiring external vibration sources.
2Reliability
If the outlet opening is made larger to prevent plugging, then material backflow is reduced, but the injector complexity increases
Solution Approach 1:
Instead of simply enlarging the outlet opening, the patent uses a curved swirling chamber that generates rotational flow to prevent plugging. This approach maintains a compact outlet size while preventing material accumulation through the vortex effect, avoiding the need for a larger and more complex outlet structure.
Solution Approach 2:
The design uses hydraulic principles by creating a swirling fluid flow within the chamber. The rotational motion of the fluid generates centrifugal forces that prevent solid particles from settling at the outlet, effectively using fluid dynamics to prevent plugging without requiring mechanical complexity.
3Reliability
If the injector operates continuously to prevent plugging, then material backflow is minimized, but energy consumption increases
Solution Approach 1:
The swirling chamber is designed to automatically generate the protective vortex flow using the kinetic energy of the fluid itself. Once the fluid enters the chamber, the curved walls naturally create the swirling motion that prevents plugging, without requiring additional energy input or external power sources. The system serves itself by using the fluid's own motion to prevent its own plugging.
Solution Approach 2:
The curved geometry of the chamber converts the linear flow energy into rotational vortex energy automatically. This passive conversion uses the fluid's kinetic energy to create the protective swirling flow that prevents plugging, eliminating the need for continuous external energy input during operation.
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 injector effectively prevents plugging and clears solid material from the chamber, ensuring continuous operation and reducing maintenance, suitable for various industrial processes including chemical reactions and liquid extraction systems.
Implementation Method 1
The chamber may define a generally circular cross-sectional shape... The inlet may be arranged tangentially to the chamber such that, when solvent enters the chamber via the inlet, the solvent contacts a curved interior wall surface of the chamber and begins circularly flowing about the chamber
Implementation Method 2
The turbulence and cyclonic force generated inside of the injector can forcibly clear any solid material that has entered the injector from the vortex-cylinder chamber
Implementation Method 3
the outlet opening through which the injector is configured to inject fluid can be arranged at any location relative to the material being processed... such that the material has a tendency to flow back into the outlet opening under a force of gravity when fluid is not flowing out of the opening
Implementation Method 4
The turbulence and cyclonic force generated inside of the injector can forcibly clear any solid material that has entered the injector from the vortex-cylinder chamber
Data Source
AI summary
A liquid extractor may include an extraction chamber containing a bed deck configured to support a solid material as the solid material is conveyed through the extraction chamber. To introduce solvent into the solid material being processed, the extractor may include a solvent injection orifice extending through the bed deck and a solvent injector. The solvent injector can receive solvent from a source and cause the solvent to rotate within the solvent injector before discharging the solvent through an outlet in fluid communication with the solvent injection orifice. The rotational flow motion imparted by the injector can create a vortex that functions to scout out any particles that may be present in the injector.