Wet Electrostatic Dust Collection Control for CO2 Exhaust Treatment
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Solution Overview
Problem
The existing exhaust gas treatment systems face performance degradation due to excessive charging in wet-type electric dust collectors, leading to increased suspended particulate matter and ozone production, which adversely affect the treatment process.
Innovation Solution
Incorporating a cooling tower, absorption tower, and regeneration tower with a detection unit and control device to adjust the charge output in the wet-type electric dust collector based on soot/dust, ozone, VOC, and particulate matter concentrations to maintain optimal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the charge output in the wet-type electric dust collector is increased to remove suspended particulate matter, then the dust collection efficiency is improved, but the amount of suspended particulate matter increases due to excessive charging
Solution Approach 1:
The system employs detection units that continuously monitor soot/dust concentration, ozone concentration, VOC concentration, and suspended particulate matter concentration in the exhaust gas. The control device receives this feedback information and dynamically adjusts the charge output of the wet-type electric dust collector to maintain optimal operation, preventing both insufficient and excessive charging conditions
Solution Approach 2:
The charge output of the wet-type electric dust collector is made dynamically adjustable based on real-time detection of exhaust gas conditions. The control device modifies operational parameters such as charge voltage or current according to detected concentrations, allowing the system to adapt to varying exhaust gas compositions and flow rates, thereby maintaining optimal dust collection efficiency without generating excessive suspended particulate matter
2Manufacturing precision
If the charge output in the wet-type electric dust collector is increased to capture suspended particulate matter, then the dust removal performance is improved, but ozone production increases adversely affecting the treatment process
Solution Approach 1:
The detection unit monitors ozone concentration in the exhaust gas and provides feedback to the control device. When ozone concentration exceeds acceptable levels, the control device reduces the charge output of the wet-type electric dust collector, thereby suppressing excessive ozone generation while maintaining adequate dust removal performance
Solution Approach 2:
The system dynamically adjusts the charge output based on real-time ozone concentration measurements. By modulating the charging intensity according to detected ozone levels, the system prevents excessive ozone production that would occur with high charge output, while still maintaining effective dust capture when conditions permit
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 curbs excessive charging, reducing suspended particulate matter and ozone production, thereby maintaining the performance and efficiency of the exhaust gas treatment process.
Implementation Method 1
a cooling tower (11) in which a cooling liquid (L1) is brought into contact with exhaust gas including carbon dioxide such that the exhaust gas is cooled
Implementation Method 2
an absorption tower (12) into which an absorption liquid (L2) capable of absorbing carbon dioxide in the exhaust gas is introduced and in which the absorption liquid absorbs carbon dioxide in the exhaust gas
Implementation Method 3
a wet-type electric dust collector (21) in which suspended particulate matter including sulfur trioxide (SO3) included in the exhaust gas is charged such that the suspended particulate matter is captured
Data Source
AI summary
An exhaust gas treatment system includes a cooling tower in which exhaust gas including carbon dioxide is cooled, an absorption tower into which an absorption liquid capable of absorbing carbon dioxide in exhaust gas is introduced and in which the absorption liquid absorbs carbon dioxide in exhaust gas that has gone through the cooling tower, a regeneration tower in which the absorption liquid that has absorbed carbon dioxide is heated, carbon dioxide is separated from the absorption liquid, and the absorption liquid is regenerated, a wet-type electric dust collector in which suspended particulate matter including SO3 included in exhaust gas is charged such that the suspended particulate matter is captured, a detection unit, and a control device. The control device includes a charge output adjustment unit which adjusts a charge output in the wet-type electric dust collector.