Circulating Dust Collection Plates for Wet Electrostatic Precipitators
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Solution Overview
Problem
Wet electrostatic precipitators face challenges in maintaining accurate leveling of multiple electrodes, leading to uneven water film formation, sparking, and reduced efficiency, requiring frequent shutdowns for cleaning and increasing maintenance complexity and costs.
Innovation Solution
An electrostatic precipitator with circulating dust collection plates is designed, where the plates are immersed in cleaning water and circulated using a motor, allowing for automatic cleaning without stopping the system, simplifying the cleaning process, reducing water usage, and lowering manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple electrodes are provided in a wet electrostatic precipitator to treat dust, then dust collection efficiency is improved, but maintaining accurate leveling becomes difficult and water film formation becomes uneven
Solution Approach 1:
The precipitator is divided into multiple treatment units, each with its own discharge electrode and dust collection electrodes. This segmentation allows each unit to be independently assembled and leveled, reducing the cumulative error that would occur with a single large assembly of 100+ electrodes. Each modular unit can be precisely leveled independently, ensuring uniform water film formation while maintaining high dust collection efficiency through the combined capacity of multiple units.
2Object-generated harmful factors
If water is supplied intermittently or continuously to clean the dust collection electrode in a wet electrostatic precipitator, then dust removal capability is improved, but uneven water film formation causes sparking and functional loss
Solution Approach 1:
The discharge electrode is positioned at the center surrounded by dust collection electrodes arranged in a concentric circular pattern, creating a symmetric electric field distribution. This geometric symmetry ensures uniform potential distribution and consistent electric field strength across all electrodes, preventing localized sparking. The water film forms uniformly across the dust collection electrode surfaces due to this symmetric configuration, maintaining reliable precipitator function while effectively removing dust.
3Productivity
If 100 to 200 electrodes are assembled in one treatment unit to increase treatment capacity, then productivity is improved, but assembly precision becomes difficult to achieve and maintenance complexity increases
Solution Approach 1:
Instead of assembling 100-200 electrodes in a single treatment unit, the system divides them into multiple smaller treatment units with fewer electrodes each. This segmentation reduces assembly complexity for each unit while achieving the same total treatment capacity through parallel operation of multiple units. Maintenance is also simplified as individual units can be serviced independently without shutting down the entire precipitator system.
Solution Approach 2:
The multiple treatment units operate in parallel, ensuring continuous dust collection treatment. If one unit requires maintenance or cleaning, the other units continue to operate, maintaining uninterrupted useful action. This parallel configuration eliminates the need to shut down the entire system for maintenance, preserving continuous productivity while simplifying maintenance procedures for individual units.
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
This solution enables continuous operation with reduced maintenance, efficient dust collection, and cost savings by automating the cleaning process while minimizing water consumption and simplifying management.
Implementation Method 1
a high voltage of direct current is applied to a discharge electrode from a high voltage generator, and a (−) electrode is connected to the discharge electrode to apply a (−) charge to the dust particles contained in the air passing between the discharge electrode and a dust collection electrode, so that the dust particles are induced to be attached to the dust collection electrode
Data Source
AI summary
An electrostatic precipitator with circulating dust collection plates is provided, in which, in a housing for electrostatic dust collection that includes an inlet and an outlet formed therein, the dust collection plates are configured so as to be immersed in cleaning water while circulating in response to driving of a circulation drive motor, so that it is possible to automatically clean the dust collection plates without stopping the operation of the electrostatic precipitator, simplify a configuration for cleaning the dust collection plates, save cleaning water for cleaning the dust collection plates, reduce manufacturing costs, and facilitate follow-up management.