Polymer High Voltage Electrode for Electric Dust Collector
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Solution Overview
Problem
Conventional electric dust collectors with metal electrodes are heavy, prone to sparking, and have low dust collection efficiency due to high resistance values when using semi-insulating resins, and mixing conductive materials with base resins can lead to additional sparking issues.
Innovation Solution
An electric dust collector with a high voltage electrode formed from a thermoplastic polymer and an inherently dissipative polymer, such as polyamide 6, which adjusts surface resistivity to prevent sparking and enhance dust collection efficiency, while maintaining mechanical strength and hygroscopicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal electrodes are used in the dust collection unit, then electrical conductivity is improved, but weight increases and sparking occurs
Solution Approach 1:
The patent replaces expensive, heavy metal electrodes with lightweight polymer electrodes that have sufficient electrical conductivity for the application. The polymer electrodes, while having lower conductivity than metal, provide adequate performance for dust collection while dramatically reducing weight and eliminating sparking issues.
Solution Approach 2:
The patent changes the material parameters by using polymers with adjusted electrical properties. Specifically, it uses polymers with volume specific resistance of 10^8 to 10^12 ohm·cm, which provides sufficient conductivity for electrostatic dust collection while maintaining the lightweight and non-sparking advantages of polymer materials.
2Ease of manufacture
If semi-insulating resin is used for high voltage electrodes, then ease of manufacture is improved, but dust collection efficiency decreases due to high resistance
Solution Approach 1:
The patent uses composite polymer materials that combine the manufacturing advantages of plastics with improved electrical properties. The composite structure allows the material to maintain ease of molding and fabrication while achieving the necessary electrical conductivity for efficient dust collection through careful selection of polymer type and additives.
Solution Approach 2:
The patent fundamentally changes the electrical parameters of the polymer material by selecting specific polymer types and controlling their physical and chemical properties. The volume specific resistance is optimized to fall within 10^8 to 10^12 ohm·cm, which balances manufacturability with dust collection efficiency.
3Reliability
If conductive material is mixed with base resin, then electrical conductivity is improved, but sparking occurs due to pinholes
Solution Approach 1:
The patent replaces metal-based conductive materials with polymer-based conductive materials that can be uniformly mixed with the base resin at the molecular level. This eliminates the formation of pinholes and voids that occur with metal particle dispersion, thereby preventing sparking while maintaining electrical conductivity.
Solution Approach 2:
The patent changes the nature of the conductive additive from metallic particles to polymer-based conductive agents. This fundamental material substitution allows for uniform distribution without void formation, eliminating the pinhole-related sparking problem while achieving the required electrical conductivity for dust collection.
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 prevents sparking, achieves high dust collection efficiency, and secures mechanical strength by using a thermoplastic polymer like ABS mixed with polyamide 6, optimizing surface resistivity and reducing leakage currents.
Implementation Method 1
a dust collection unit which generates an electric field to move and collect the charged particle by an electrostatic force
Implementation Method 2
When a volume specific resistance is adjusted only by the hygroscopic resin, a low resistance value typically cannot be obtained
Data Source
AI summary
The present disclosure relates to an electric dust collector for generating an electric field by a high voltage electrode formed of a polymer. An electric dust collector according to the present disclosure includes a high voltage electrode to which a high voltage is applied, composed of a thermoplastic polymer and an inherently dissipative polymer, and a ground electrode to be grounded to generate the electric field with the high voltage electrode.