Multi-Channel Plasma Reaction Cell for High-Concentration Gas Output
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Solution Overview
Problem
Existing plasma discharge reactors are inefficient, leading to wasteful heat generation and low product concentration, particularly in the production of gases like ozone, where concentrations can be less than 10% and decrease further at higher flow rates, necessitating multiple parallel cells that increase cost and weight.
Innovation Solution
The design incorporates a plasma reaction cell with multiple gas channels and sub-cells, featuring conductive spacers and insulation plates to create a uniform plasma field, allowing gas to spend more time in the reaction chamber, increasing production efficiency and concentration without the need for additional cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the flow rate is increased to improve productivity, then gas production volume increases, but product concentration decreases significantly
Solution Approach 1:
The reaction cell is divided into multiple independent gas channels (first gas channel, second gas channel, etc.) that process gas flow in parallel. Each channel maintains its own plasma reaction zone, allowing the total flow rate to increase while each channel operates at optimal conditions for high concentration output.
Solution Approach 2:
The patent transitions from a single-channel two-dimensional flow to a multi-channel three-dimensional structure. By stacking multiple channels vertically and horizontally, the system increases processing capacity without compromising the concentration-quality relationship in any individual channel.
2Quantity of substance
If multiple parallel cells are used to maintain concentration at high flow rates, then product concentration is maintained, but device complexity and cost increase
Solution Approach 1:
Multiple gas channels are integrated into a single reaction cell structure, sharing common components such as the housing, power supply connections, and control systems. This merging approach achieves the concentration benefits of multiple cells while reducing overall device complexity and cost.
Solution Approach 2:
The reaction cell design makes each channel functionally identical and interchangeable, with standardized components that can serve multiple purposes. The same structural elements support both single-channel and multi-channel configurations, providing versatility without increasing complexity.
3Quantity of substance
If multiple parallel cells are used to offset concentration loss, then product concentration is maintained, but device weight increases
Solution Approach 1:
Multiple channels are combined within a single cell housing, eliminating the need for separate housings, mounting structures, and support systems for each individual cell. This integration significantly reduces the total weight while maintaining the concentration benefits of multiple channels.
4Manufacturing precision
If electric discharge is used to break chemical bonds, then desired molecules are formed, but excessive heat is generated wastefully
Solution Approach 1:
The dielectric material is applied selectively to specific regions of the electrode surface, creating localized discharge zones that concentrate energy where it is most effective for bond breaking. This localized approach reduces overall heat generation while maintaining high efficiency in the active reaction zones.
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 enhances gas production efficiency and concentration within a single cell, allowing for higher product yields while maintaining a compact size, similar to larger cells, and supports ozone generation with improved capacity and reduced costs.
Implementation Method 1
When the applied voltage reaches a sufficient threshold, the electric field between the electrodes breaks down, causing electricity to discharge through the input fluid. The resulting electric current has the ability to break some of the chemical bonds of the input fluid
Implementation Method 2
the electric field between the electrodes breaks down, causing electricity to discharge through the input fluid
Implementation Method 3
a cooling plate attached to the side wall opposite the base plate
Data Source
AI summary
A plasma reaction cell includes a discharge chamber with a base plate, a side wall, and a cooling plate. A discharge stack mounted within the discharge chamber includes a first insulation plate, a first conductive spacer, a second insulation plate, and a second conductive spacer. An electrode electrically coupled to the first conductive spacer extends through the side wall of the discharge chamber. A first gas channel formed between the first conductive spacer and the first insulation plate has a first end in fluid communication with a first gas port and a second end in fluid communication with a second gas port. A second gas channel formed between the first conductive spacer and the second insulation plate has a first end in fluid communication with the first gas port and a second end in fluid communication with the second gas port.