Plasma Eductor Reactor for Stable Liquid Injection
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Solution Overview
Problem
Current plasma reactors face challenges in efficiently creating and stabilizing plasma within liquids for applications such as hydrogen enrichment, nitrogen fixing, and water treatment, due to limitations in electrode design and plasma distribution.
Innovation Solution
The development of a plasma eductor reactor with a specific housing, electric field generator, flow spreader, and diffuser configuration that creates a cylindrical electric field, allowing radial or axial flow of gas and liquid through the electric field to ionize the gas and inject plasma into the liquid, enhancing plasma stability and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional electrode design is used in plasma reactors, then the structure is simple, but plasma stability and distribution are poor
Solution Approach 1:
The electrode system is divided into multiple segments including a first electrode, second electrode, third electrode, and fourth electrode arranged in specific configurations. This segmentation allows for better plasma distribution and stability by creating multiple electric field zones within the reactor chamber.
Solution Approach 2:
Different electrodes are positioned to create localized electric field regions with specific properties. The first and second electrodes form one electric field region while the third and fourth electrodes form another, allowing different areas of the reactor to have optimized plasma characteristics for specific treatment needs.
2Reliability
If high voltage is applied to initiate plasma, then plasma generation is achieved, but turn-on voltage is high
Solution Approach 1:
The flow spreader and diffuser are positioned to pre-condition the gas and liquid flows before they enter the plasma generation zone. This preliminary arrangement optimizes the flow patterns and reduces the voltage required to initiate and sustain plasma discharge.
Solution Approach 2:
The dielectric material positioned between electrodes acts as an intermediary that modifies the electric field distribution, enabling more efficient plasma initiation at lower voltages while maintaining reliable plasma generation.
3Productivity
If gas and liquid flow through electric field, then plasma injection into liquid is achieved, but flow distribution may be non-uniform
Solution Approach 1:
The diffuser component is designed with curved surfaces that promote uniform radial flow of liquid and gas through the electric field region. This curvature-based design ensures even distribution of flows and prevents localized concentration variations.
Solution Approach 2:
The flow spreader and diffuser create three-dimensional flow patterns that distribute gas and liquid uniformly across multiple dimensions within the reactor chamber, ensuring consistent plasma injection throughout the liquid volume rather than concentrated in specific areas.
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
This configuration improves plasma stability, reduces turn-on voltage, and allows for uniform discharge, promoting efficient plasma injection into liquids for various treatment applications, including hydrogen enrichment and water purification.
Implementation Method 1
The electric field generator may include a first electrode and a spaced apart second electrode and may generate an electric field therebetween
Implementation Method 2
Exposure to the electric field generally ionizes the gas and creates a plasma
Implementation Method 3
allowing radial or axial flow of gas and liquid through the electric field to ionize the gas and inject plasma into the liquid
Data Source
AI summary
A system for performing ozone water treatment comprises a voltage supply circuit and a plasma eductor reactor. The voltage supply circuit includes an H-bridge controller and driver, a transformer, and an output port. The H-bridge controller and driver are configured to switch the electrical polarity of a pair of terminals. A primary of the transformer is connected to the H-bridge driver and controller. A secondary of the transformer connects in parallel with a first capacitor and in series with an inductor and a second capacitor. The output port connects in parallel with the second capacitor. The plasma eductor reactor includes an electric field generator, a flow spreader, and a diffuser. The electric field generator includes a pair of electrodes that generate an electric field. The flow spreader supplies a stream of oxygen. The diffuser supplies a stream of water. The streams of water and oxygen pass through the electric field.