Fanless Fine Dust Collection and Noise Absorption Device

The fanless fine dust collector and noise absorber addresses high ozone and operational instability issues by optimizing pin-type discharge unit geometry and incorporating a superhydrophobic design and internal sound-absorbing panels, ensuring efficient dust and noise reduction with stable operation.

JP7875914B2Active Publication Date: 2026-06-18KOREA RAILROAD RESEARCH INSTITUTE
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KOREA RAILROAD RESEARCH INSTITUTE
Filing Date
2024-09-18
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing fanless dust collection devices using corona discharge suffer from high ozone concentration, unstable operation due to water droplet adhesion, and lack of sound absorption, leading to practicality issues and increased costs.

⚗Method used

A fanless fine dust collector and noise absorber with a pin-type discharge unit, superhydrophobic design, and internal sound-absorbing panel, featuring specific pin and electrode distances and materials to maintain low ozone generation and enhance collection efficiency and noise attenuation.

🎯Benefits of technology

Achieves low ozone concentration, stable operation through water-repellent design, and improved noise absorption by optimizing discharge unit geometry and incorporating internal sound-absorbing panels, while maintaining collection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a fanless fine dust collection and noise absorption device that generates low concentration of ozone while maintaining a pin-type discharge part and collection efficiency.SOLUTION: A fanless fine dust collection and noise absorption device includes: a body part that has an inlet provided on one side and an outlet provided on the other side of the inlet; a sound absorption part that has a front sound absorption panel located on the front of the body part; and a dust collection part provided on one side of the front sound absorption panel, purifying external air flowing into the inlet of the body part and discharging the purified air through the outlet of the body part. The dust collection part includes: a housing that is installed adjacent to the inlet inside the body part; a large number of discharge plates that are arranged at regular intervals on the inlet side inside the housing and have discharge pins formed at regular intervals; a large number of collecting electrodes that are installed at a distance from the discharge pins on the outlet side and have polarity opposite to that of the discharge pins; and a large number of non-collecting electrodes that are arranged alternately with the collecting electrodes and have the same polarity as the discharge pins.SELECTED DRAWING: Figure 6
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