Electric Dust Collection Charging Using Gradient Potential Electrodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric dust collection devices face challenges in uniformly charging the charging space due to non-uniform ion distribution, leading to reduced dust collection efficiency and increased ozone generation, which complicates size reduction and long-term stability.
Innovation Solution
The device incorporates a gradient potential electrode system with discharge and ground electrodes arranged to generate a uniform electric field, using conductive or insulating rod-shaped electrodes to transport ions effectively and minimize ozone generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional discharge electrode arrangements are used, then ion generation occurs, but non-uniform ion distribution results in reduced dust collection efficiency
Solution Approach 1:
The patent applies local quality by creating different electric field strengths in different regions of the charging space. Gradient potential electrodes are positioned to generate stronger electric fields near the discharge electrode and progressively weaker fields toward the collection electrode, ensuring uniform ion distribution throughout the space rather than concentrating ions only near the discharge electrode.
Solution Approach 2:
The patent introduces gradient potential electrodes as a third dimensional element in the electrode arrangement. Instead of only using discharge and collection electrodes, the gradient potential electrodes are positioned between them to create a multi-dimensional electric field structure, enabling precise control of ion distribution throughout the charging space.
2Productivity
If higher voltage is applied to increase ion generation, then charging effectiveness improves, but ozone generation increases
Solution Approach 1:
The patent changes the voltage parameter distribution spatially by applying different voltages to different electrodes. The gradient potential electrodes are assigned intermediate voltages between the high voltage discharge electrode and the low voltage collection electrode, creating a progressive voltage gradient that reduces peak electric field strength and thereby reduces ozone generation while maintaining charging effectiveness.
3Productivity
If electrode arrangement is optimized for uniform charging, then dust collection efficiency improves, but device complexity increases
Solution Approach 1:
The patent segments the charging space into multiple regions by introducing gradient potential electrodes between the discharge and collection electrodes. This segmentation allows independent optimization of electric field strength in each region, achieving uniform ion distribution and improved dust collection efficiency while keeping each electrode's function simple and well-defined.
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 ensures uniform charging, enhances dust collection efficiency, reduces device size, and stabilizes performance over time while minimizing ozone production.
Implementation Method 1
a discharge electrode (11) arranged in a first direction approximately perpendicularly to the airflow and configured to generate ions
Implementation Method 2
a gradient potential electrode (13a, 13b) arranged in the first direction to allow the airflow to pass therethrough and to which a second voltage lower than the first voltage and that gradually decreases from the discharge electrode toward a central portion of the charging unit is applicable
Implementation Method 3
a dust collection unit configured to collect dust by attaching the particulate matter charged by the charging unit
Data Source
AI summary
An electric dust collection device including a charging unit configured to charge airborne particulate matter, a dust collection unit configured to collect dust by attaching the particulate matter charged by the charging unit, a fan configured to generate airflow in a direction from the charging unit to the dust collection unit, and a power source configured to apply a first voltage to the charging unit, wherein the charging unit includes a discharge electrode installed approximately perpendicular to the process airflow in a first direction and configured to generate ions, a ground electrode installed in a second direction to cross the airflow, and a gradient potential electrode arranged in the first direction to allow the airflow to pass therethrough and to which a second voltage lower than the first voltage is applied, wherein the second voltage gradually decreases from the discharge electrode toward a central portion of the charging unit.