Plasma Reactor Exhaust Pressure Control for Stable Multi-Reactor Operation
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Solution Overview
Problem
Conventional plasma generating systems experience plasma instability and crosstalk due to standing waves and pressure variations in the reactor chamber, which are not effectively controlled by the existing geometry and piping configurations.
Innovation Solution
A plasma generating system that includes a waveguide for microwave energy transmission, a plasma chamber, a gas inlet, an exhaust gas pipe with a pressure control device to manage pressure fluctuations, and a manifold to receive exhaust gases from multiple reactors, thereby stabilizing plasma and preventing crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional piping geometry with fittings and bends is used to connect plasma reactors to manifold, then assembly and servicing becomes easier, but standing waves are generated causing plasma instability
Solution Approach 1:
The patent extracts and removes the problematic fittings, bends, and complex piping geometry from the exhaust gas flow path. By using straight piping with minimal obstructions, the design eliminates the sources of standing waves while maintaining ease of assembly through simplified connections between plasma reactors and the manifold.
2Productivity
If multiple plasma reactors are connected to a common manifold, then system throughput increases, but crosstalk and pressure variations occur between reactors
Solution Approach 1:
The patent segments the exhaust gas flow paths by providing individual exhaust gas pipes for each plasma reactor that connect to the manifold. This segmentation isolates pressure variations and disturbances within each reactor's exhaust path, preventing crosstalk between reactors while maintaining the benefits of a common manifold for high throughput.
3Reliability
If optimized piping geometry is used to eliminate standing waves, then plasma stability improves, but device complexity increases
Solution Approach 1:
The patent applies local quality by optimizing specific sections of the piping system - using straight, smooth-bore pipes in critical exhaust gas flow paths where standing waves occur, while allowing more flexibility in non-critical connections. This targeted optimization eliminates plasma instability without requiring complete redesign of the entire piping system.
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 effectively stabilizes plasma by controlling pressure variations and suppressing standing waves, enhancing plasma stability and throughput in multiple reactor configurations.
Implementation Method 1
a waveguide for transmitting a microwave energy therethrough
Implementation Method 2
the plasma converts the gas into the exhaust gas
Implementation Method 3
a pressure control device installed in the exhaust gas pipe and configured to control a pressure of the exhaust gas in the exhaust gas pipe
Data Source
AI summary
The present invention provides a plasma generating system that includes: a plurality of plasma reactors. Each plurality of plasma reactors includes: a waveguide for transmitting a microwave energy therethrough; a plasma chamber coupled to the waveguide and configured to generate a plasma therein using the microwave energy; a gas inlet for introducing a gas into the plasma chamber; an exhaust gas pipe for carrying an exhaust gas from the plasma chamber, wherein the plasma converts the gas into the exhaust gas; and a pressure control device installed in the exhaust gas pipe and configured to control a pressure of the exhaust gas in the exhaust gas pipe. The plasma generating system also includes a manifold coupled to the exhaust gas pipes of the plurality of plasma reactors and configured to receive the exhaust gas from the exhaust gas pipes.