Bent-Sheet Electrostatic Dust Collector With Integrated Electrodes
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Solution Overview
Problem
Conventional electric dust collection devices have complex structures and are difficult to manufacture due to separately assembled positive and negative electrodes in the dust collecting part, which complicates the manufacturing process.
Innovation Solution
An electric dust collection device with a dust collecting part formed by continuously bending an insulating sheet, where positive and negative electrodes are alternately formed on the sheet, connected through a connecting wall with openings, and gap holding members maintain a constant gap for efficient electric field formation and air flow, simplifying the structure and manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple positive and negative electrodes are separately manufactured and assembled at predetermined intervals to form the dust collecting part, then the dust collection function is achieved, but the manufacturing complexity increases and the structure becomes complicated
Solution Approach 1:
The patent merges multiple separately manufactured electrodes into a single integrated dust collecting part. The insulating sheet is continuously bent to form multiple bent portions, with positive and negative electrodes formed directly on adjacent surfaces of each bent portion. This eliminates the need for separate manufacturing and assembly of multiple electrode components, thereby reducing structural complexity while maintaining the dust collection function.
Solution Approach 2:
The insulating sheet serves multiple functions simultaneously: it provides mechanical support as a structural base, acts as an insulator between positive and negative electrodes, and serves as the substrate on which electrodes are formed. This multi-functionality reduces the number of separate components needed, simplifying both structure and manufacturing.
2Reliability
If multiple positive and negative electrodes are separately manufactured and assembled at predetermined intervals to form the dust collecting part, then the dust collection function is achieved, but the manufacturing difficulty increases
Solution Approach 1:
The patent combines the manufacturing process of multiple electrodes into a single continuous process. The insulating sheet is continuously bent and electrodes are formed on its surfaces in sequence, eliminating the need for separate manufacturing and assembly steps for each electrode. This significantly improves manufacturing ease while ensuring consistent dust collection performance.
Solution Approach 2:
The insulating sheet is pre-formed with electrode patterns before the bending process. Positive and negative electrodes are printed or deposited on the flat insulating sheet at predetermined positions, and then the sheet is continuously bent to create the final three-dimensional structure. This preliminary preparation of electrode patterns simplifies the overall manufacturing process.
3Device complexity
If electrodes are formed on continuously bent insulating sheet, then manufacturing is simplified and structure is reduced, but gap maintenance between electrodes requires additional components
Solution Approach 1:
Gap holding members are positioned at locations where they maintain equal spacing between adjacent bent portions. These members ensure that the gaps between positive and negative electrodes remain uniform throughout the dust collecting part, providing consistent electric field distribution and effective dust collection while keeping the overall structure simple.
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 simplifies the manufacturing process and reduces material costs while maintaining efficient dust collection by forming a dust collecting part with integrated electrodes, ensuring effective removal of dust from the air.
Implementation Method 1
When a voltage of several KV, for example, 3 to 7 KV, is applied between the discharge electrode 111 and the correspondence electrode 113, a corona discharge is generated in the discharge electrode 111 so that a hemispherical electric field is formed between the discharge electrode 111 and the correspondence electrode 113.
Implementation Method 2
when a predetermined voltage is applied between the positive electrodes 121 and the negative electrodes 122 of the dust collecting part 120, electric fields are formed between the positive electrodes 121 and the negative electrodes 122. Here, the electrode having a high level potential is represented as the positive electrode and the electrode having a low level potential is represented as the negative electrode based on the potential difference between the two electrodes.
Implementation Method 3
The dust charged to have a positive polarity is adhered to the negative electrodes 122 and removed from the air while passing through the dust collecting part 120.
Data Source
Figure 1
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Figure 3A
AI summary
The present invention relates to an electric dust collection device comprising: an electrification unit; and a dust collection unit provided downstream of the electrification unit, wherein the dust collection unit comprises a plurality of bent parts formed by continuously bending one insulating sheet, each of the plurality of bent parts comprises: two flat surfaces bent so as to face each other at a predetermined interval; and a connection surface connecting respective one ends of the two flat surfaces in the vertical direction and having an opening, one flat surface of the two flat surfaces has an electrode for an anode, and the other one flat surface has an electrode for a cathode.