High-Frequency Induction Waste Gas Treatment With Catalyst Barrel
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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 and energy inefficiencies, necessitating a solution to reduce energy consumption and extend the life of the high frequency coil.
Innovation Solution
The equipment incorporates a reactor with an induction heating pipe, a high frequency coil protected by a coil protector, a flow guide tube, a catalyst barrel, and a scraper mechanism, which reduces reaction temperature through catalytic reaction and isolates the coil from the waste gas, while a thermal insulation unit minimizes heat loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high frequency alternating current with high power is used to heat waste gas to 1050°C, then the waste gas can be effectively treated, but energy consumption increases significantly
Solution Approach 1:
The heating process is segmented into two distinct stages: a preheating stage using the induction heating pipe to raise the waste gas temperature to a catalytic reaction temperature, and a subsequent catalytic reaction stage where the catalyst barrel reduces the temperature. This segmentation allows the high frequency coil to operate at lower power levels while still achieving the required treatment temperature through the combined effect of induction heating and catalytic reaction.
Solution Approach 2:
The induction heating pipe performs preliminary heating of the waste gas before it enters the catalytic reaction zone. By preheating the waste gas to the appropriate temperature range, the system reduces the additional energy input required from the high frequency coil during the main reaction phase, thereby lowering overall energy consumption.
2Productivity
If the high frequency coil is directly exposed to waste gas, then heating efficiency is improved, but the coil lifespan decreases due to corrosion
Solution Approach 1:
The induction heating pipe serves as an intermediary between the high frequency coil and the waste gas. It transfers electromagnetic energy from the coil to the waste gas through induction heating without direct contact, protecting the coil from corrosive waste gas while maintaining heating efficiency. The catalyst barrel acts as a second intermediary that reduces temperature and further isolates the coil environment from direct waste gas exposure.
Solution Approach 2:
The system employs a nested structure where the high frequency coil is positioned inside the induction heating pipe, which itself is surrounded by the catalyst barrel. This nested arrangement allows the coil to generate electromagnetic fields for efficient heating while being protected from direct contact with corrosive waste gas, thereby extending coil lifespan without compromising heating performance.
3Power
If reaction temperature is reduced through catalytic reaction, then power consumption of high frequency coil decreases, but additional equipment complexity is introduced
Solution Approach 1:
The induction heating pipe serves multiple functions: it acts as the heating element for the high frequency coil, serves as a reaction chamber for the waste gas, and functions as a protective barrier isolating the coil from corrosive gas. The catalyst barrel simultaneously provides the catalytic reaction surface and acts as a temperature reduction zone. This multi-functionality reduces the need for separate components, thereby limiting the increase in equipment complexity while achieving power reduction.
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 achieves energy savings by reducing the power required for the high frequency coil and extends its lifespan, while effectively treating waste gases by lowering reaction temperatures and preventing coil corrosion.
Implementation Method 1
The high frequency coil is disposed in the coil protector, surrounds the induction heating pipe, and is used for generating induced current in the induction heating pipe to cause the induction heating pipe to generate heat for heating the waste gas
Implementation Method 2
The induction heating pipe is disposed in and divides the waste gas reaction space into inner and outer spaces... The high frequency coil is disposed in the coil protector, surrounds the induction heating pipe, and is used for generating induced current in the induction heating pipe to cause the induction heating pipe to generate heat
Implementation Method 3
The through holes are configured to allow entry of the waste gas 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
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AI summary
A waste gas treatment equipment includes a reactor (51) defining a waste gas reaction space (510), an induction heating pipe (52) disposed in and dividing the waste gas reaction space (510) into inner and outer spaces (5101, 5102), a coil protector (57) disposed in the outer space (5102) and surrounding the induction heating pipe (52), a flow guide tube (58) inserted into the inner space (5101) through a bottom wall (511) of the reactor (51), and a high frequency coil (53) disposed in the coil protector (57). A catalyst barrel (59) has a barrel body (591) sleeved on a top portion of the flow guide tube (58), including an outer wall (5912) provided with a plurality of through holes (590), and defining a receiving space (5914) communicating with the through holes (590) and for receiving a catalyst (599). A scraper mechanism (55, 55') is provided in the reactor (51) for scraping dust or crystals attached to the inner wall surface of the flow guide tube (58) and the outer wall (5912) of the barrel body (591).