Plasma-Generating Flow Channels for Overheating and Oxidation Control
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Solution Overview
Problem
There is a need for an improved method and device for thermally treating substances, particularly metals, that addresses issues such as overheating of plasma-generating elements and oxidative problems due to oxygen-containing gases.
Innovation Solution
A device with a plasma-generating element that includes concentric flow channels for gaseous fluids, acceleration mechanisms, and a jet pump system to enhance gaseous fluid introduction, prevent overheating, and maintain an overpressure to exclude oxygen-containing gases, while allowing for regulation and control of gas flows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a plasma-generating element is used to thermally treat substances, then high temperature processing is achieved, but overheating of the plasma-generating element occurs
Solution Approach 1:
A conveying element is introduced as an intermediary component between the gas source and the plasma-generating element. This conveying element accelerates the gaseous fluid through its flow channel and delivers it to the plasma-generating element, thereby improving heat dissipation and preventing overheating while maintaining high processing temperatures
Solution Approach 2:
The patent utilizes fluid dynamics by accelerating gaseous fluid through the conveying element before introducing it to the plasma-generating element. This pneumatic approach enhances the cooling effect and prevents overheating of the plasma-generating element during high-temperature processing
2Quantity of substance
If oxygen-containing gases are present in the system, then gas flow is maintained, but oxidative problems occur
Solution Approach 1:
The patent creates a controlled atmosphere by accelerating and directing specific gaseous fluids through the conveying element to the plasma-generating element. This approach maintains necessary gas flow for operation while preventing oxidative problems by controlling the gas composition and flow characteristics
3Productivity
If gaseous fluid introduction is enhanced, then thermal treatment efficiency is improved, but device complexity increases
Solution Approach 1:
The conveying element serves multiple functions simultaneously: it conveys the gaseous fluid from the source, accelerates the fluid through its flow channel, and delivers it to the plasma-generating element. This multi-functionality enhances thermal treatment efficiency while minimizing the increase in device complexity by avoiding the need for separate components for each function
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 solution effectively prevents overheating and oxidative issues, enhances the introduction of gaseous fluids, and improves the energy balance and control of thermal treatment processes.
Implementation Method 1
with which the gaseous fluid can be accelerated
Implementation Method 2
generating a plasma in the plasma-generating element
Implementation Method 3
heating the gaseous fluid with the plasma to produce a hot gas
Data Source
AI summary
A device for providing a plasma, comprising at least one plasma-generating element with one inlet and one outlet for a gaseous fluid, wherein a first flow channel is arranged in the plasma-generating element, optionally a second flow channel which is arranged concentrically thereto and surrounds the first flow channel at least in sections, is arranged, the first flow channel being fluidically connected to a first connection for a gaseous fluid for forming a heated gas flow and/or a plasma flow, and the inlet of the plasma-generating element being fluidically connected to a conveying element, with which the gaseous fluid can be accelerated.