Waste Gas Treatment With Induction Heating And Catalysis
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Solution Overview
Problem
Existing waste gas treatment equipment using high frequency heat sources consumes high power due to high reaction temperatures, leading to increased energy consumption and potential corrosion of the high frequency coil.
Innovation Solution
The equipment incorporates a reactor with an induction heating pipe surrounded by a coil protector and a flow guide tube, utilizing a catalyst barrel to reduce reaction temperature and power consumption, while a thermal insulation unit minimizes heat loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high frequency alternating current is used to heat waste gas to high reaction temperature (1050°C), then waste gas treatment effectiveness is improved, but power consumption increases and high frequency coil corrosion accelerates
Solution Approach 1:
The heating process is segmented into two stages: first, induction heating pipe heats waste gas to high temperature for effective treatment; second, catalyst barrel maintains lower temperature (905°C) for sustained reaction. This segmentation allows the system to achieve treatment effectiveness without continuously consuming high power.
Solution Approach 2:
The system changes the temperature parameter dynamically by using induction heating for rapid high-temperature heating, then transitioning to catalyst-based lower temperature maintenance. This parameter change reduces power consumption while maintaining treatment effectiveness.
2Reliability
If high frequency alternating current is used at high power to maintain reaction temperature, then waste gas treatment effectiveness is improved, but service life of high frequency coil decreases due to corrosion
Solution Approach 1:
The system segments the heating and catalytic functions into separate components: induction heating pipe for initial high-temperature heating and catalyst barrel for sustained lower-temperature reaction. This reduces continuous exposure of the high frequency coil to corrosive high-temperature waste gas, extending its service life.
Solution Approach 2:
The catalyst barrel acts as an intermediary that receives heated waste gas and continues the treatment process at lower temperature. This intermediary protects the high frequency coil from prolonged exposure to corrosive conditions while maintaining treatment effectiveness.
3Power
If induction heating pipe is used to heat waste gas, then heating efficiency is improved, but heat loss to surrounding environment increases
Solution Approach 1:
The induction heating pipe is nested within the reactor chamber, and the catalyst barrel is nested within the same chamber. This nested arrangement allows heat generated by the induction heating pipe to be contained and utilized by the waste gas and catalyst, reducing heat loss to the surrounding environment.
Solution Approach 2:
The heating function and catalytic reaction function are merged within the same reactor chamber. This merging allows the heat generated during heating to be directly utilized for the catalytic reaction, minimizing heat loss and improving overall energy efficiency.
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
Reduces reaction temperature to 905°C, decreases power consumption, prolongs the life of the high frequency coil, and enhances energy efficiency by using a catalyst for gas cracking.
Implementation Method 1
The high frequency coil 13 uses high frequency alternating current to generate induced current in the induction heating pipe 12 and to cause the induction heating pipe 12 to generate heat
Implementation Method 2
The induction heating pipe is used for generating induced current to cause the induction heating pipe to generate heat for heating the waste gas
Implementation Method 3
The through holes are configured to allow entry of the waste gas from the inner space into the receiving space of the barrel body so as to react with the catalyst and reduce the reaction temperature of the waste gas
Data Source
AI summary
A waste gas treatment equipment uses a high frequency heat source for treating a waste gas, and includes a reactor defining a waste gas reaction space; an induction heating pipe disposed in and dividing the waste gas reaction space into inner and outer spaces, a coil protector disposed in the outer space and surrounding the induction heating pipe, a flow guide tube inserted into the inner space through a bottom wall of the reactor, a high frequency coil disposed in the coil protector, and a catalyst barrel having a barrel body sleeved on a top portion of the flow guide tube and including an inner wall, an outer wall provided with a plurality of through holes, and a bottom wall cooperating with the inner and outer walls to define a receiving space communicating with the through holes and for receiving a catalyst.