Electrostatic Precipitator Electrode Spacing and Insulation
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Solution Overview
Problem
Existing electrostatic precipitators face issues with insulation breakdown and reduced precipitation efficiency due to dust accumulation on electrodes, which is exacerbated by coating with plastic resin, leading to increased electricity loss and manufacturing costs.
Innovation Solution
The electrostatic precipitator design includes a collector with high-voltage and low-voltage electrodes supported by boss-shaped structures and semiconductive electrode contact terminals, maintaining a constant distance between electrodes to prevent insulation breakdown while reducing current leakage and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plastic resin is coated on high-voltage and low-voltage electrodes to prevent insulation breakdown, then insulation breakdown is prevented, but precipitation efficiency deteriorates due to surface potential changes
Solution Approach 1:
The patent applies different surface treatments to different regions of the electrodes. The electrode contact terminals are made of semiconductive material with controlled surface potential to prevent insulation breakdown, while the main electrode bodies maintain their original conductive properties to ensure high precipitation efficiency. This local differentiation resolves the contradiction between insulation prevention and precipitation efficiency.
Solution Approach 2:
The patent uses composite material structure where semiconductive material is applied only to the electrode contact terminals rather than coating the entire electrode. This composite approach combines the insulation properties of semiconductive material at critical points with the conductive properties of the main electrode material, simultaneously achieving insulation breakdown prevention and maintained precipitation efficiency.
2Productivity
If resistance of plastic resin coated on electrodes is reduced to improve precipitation efficiency, then precipitation efficiency improves, but current leakage increases requiring higher power output and electricity loss
Solution Approach 1:
The patent applies semiconductive material with optimized resistance only to the electrode contact terminals where electrical connection is needed, rather than coating the entire electrode surface. This localized application provides sufficient electrical connection to prevent insulation breakdown while minimizing current leakage paths, thereby reducing electricity loss while maintaining precipitation efficiency.
3Reliability
If spacer or protrusion is provided to maintain constant distance between electrodes, then insulation breakdown is prevented, but device complexity increases
Solution Approach 1:
The patent integrates the distance-maintaining function directly into the electrode contact terminals themselves, which are formed with protruding structures that simultaneously serve as both electrical connection points and spacing elements. This merging of functions eliminates the need for separate spacers or protrusions, reducing structural complexity while maintaining insulation breakdown prevention.
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 configuration enhances precipitation efficiency and maintains performance without insulation breakdown, while reducing electricity loss and manufacturing costs by using conductive materials and semiconductive terminals to manage electrode interactions.
Implementation Method 1
the electrode contact terminals for the high-voltage electrodes are formed of a semiconductive material
Implementation Method 2
the collector includes alternately arranged high-voltage electrodes and low-voltage electrodes to create an electric field
Implementation Method 3
an electrostatic precipitator serves to purify air by collecting contaminants, such as dust, etc., contained in the air
Data Source
AI summary
An electrostatic precipitator including a charger to charge dust particles in air and a collector to collect the dust particles. The collector includes a collector case including high-voltage electrodes, to which high-voltage is applied, low-voltage electrodes alternately stacked with the high-voltage electrodes so as to be grounded, and first electrode support elements to support the high-voltage and low-voltage electrodes with a distance therebetween. The first electrode support elements include electrode contact terminals to support extreme edge portions of the high-voltage and low-voltage electrodes. The high-voltage and low-voltage electrodes are formed of a conductive material, or a non-conductive material, the surface of which is subjected to conductive treatment. The electrode contact terminals for the high-voltage electrodes are formed of a semiconductive material. Accordingly, it is possible to maintain a constant distance between the electrodes and to prevent insulation breakdown without deterioration in the performance of the collector.