KR-102961066-B1 - Power Generation Apparatus for Dust Collector

KR102961066B1KR 102961066 B1KR102961066 B1KR 102961066B1KR-102961066-B1

Abstract

A power generation device for a dust collector is disclosed. A power generation device for a dust collector according to one aspect of the present invention comprises: a duct through which air discharged from a dust collector flows; a first housing disposed above the duct and forming an internal space; a first rotating shaft rotatably supported across the first housing; a first blade coupled to the outer circumference of the first rotating shaft and rotating by the flow pressure of air introduced from the duct; and a first generator connected to the end of the first rotating shaft and converting rotational energy into electrical energy; a second power generation unit stacked above the first power generation unit; a rectification guide unit stacked above the second power generation unit and converting the flow of turbulent air into laminar flow; and a flange coupling portion connecting each unit.

Inventors

박재성
박창식
유희상
윤천용

Assignees

주식회사 유니온환경

Dates

Publication Date: 20260508
Application Date: 20251216

Claims (6)

A duct through which air discharged from a dust collector flows; A first power generation unit comprising: a first housing disposed at the upper part of the duct and forming an internal space; a first rotating shaft rotatably supported across the first housing; a first blade coupled to the outer circumference of the first rotating shaft and rotating by the flow pressure of air introduced from the duct; and a first generator connected to the end of the first rotating shaft and converting rotational energy into electrical energy; A first flange coupling portion that connects the duct and the first power generation unit, wherein the lower part of a first flange formed at the top of the duct and the upper part of a first flange formed at the bottom of the first housing are butted against each other and mechanically fastened; A second power generation unit comprising: a second housing stacked and arranged on the upper part of the first power generation unit and forming an internal space; a second rotating shaft rotatably supported across the second housing; a second blade coupled to the outer circumference of the second rotating shaft and rotating by the flow pressure of air passing through the first power generation unit; and a second generator connected to the end of the second rotating shaft and converting rotational energy into electrical energy; A second flange coupling portion interposed between the first power generation unit and the second power generation unit, wherein the lower part of a second flange formed at the top of the first housing and the upper part of a second flange formed at the bottom of the second housing are butted against each other and mechanically fastened to connect the first power generation unit and the second power generation unit; A rectification guide unit comprising: a rectification housing having a hollow internal space and stacked on the upper portion of the second power generation unit; a rectification guide disposed inside the rectification housing and converting the flow of turbulent air passing through the second power generation unit into laminar flow; and a plurality of cells arranged in a dense grid form within the rectification guide to partition the air passage. A power generation device for a dust collector comprising a third flange coupling portion interposed between the second power generation unit and the rectification guide unit, wherein the lower portion of a third flange formed at the top of the second housing and the upper portion of a third flange formed at the bottom of the rectification housing are mechanically connected by butting them against each other, thereby guiding air passing through the second power generation unit to the rectification guide unit.
In Article 1, The first blade and the second blade are a power generation device for a dust collector that rotates in opposite directions relative to the direction of air flow passing through the duct.
In Article 2, A power generation device for a dust collector, wherein the first blade and the second blade are each arranged radially at equal intervals on the outer surface of the first rotation axis and the second rotation axis, respectively, and each blade is formed with an airfoil cross-section having hydrodynamic curvature.
In Article 1, The above rectification guide is a power generation device for a dust collector in which a plurality of cells having a hexagonal cross-section are densely arranged in a honeycomb shape.
In Article 1, The first housing, the second housing, and the rectification housing are formed in the shape of a rectangular tubular body having the same cross-sectional dimensions and are stacked coaxially in the vertical direction. A power generation device for a dust collector, wherein the first flange joint, the second flange joint, and the third flange joint are each configured to be connected and disconnected through a bolt fastening method.
A power generation device for a dust collector according to claim 5, wherein the vertical distance from the center of the first rotation axis to the center of the second rotation axis is arranged to have a ratio range of 1.5 to 2.5 times the vertical distance from the center of the second rotation axis to the center of the vertical height reference of the rectification guide.

Description

Power Generation Apparatus for Dust Collector The present invention relates to a power generation device for a dust collector, and more specifically, to a power generation device connected to a duct through which air discharged from a dust collector flows. Dust collectors are environmental equipment designed to prevent air pollution by capturing pollutants such as dust, smoke, and harmful gases generated in industrial facilities like factories and power plants. During the dust collection process, a large volume of air is continuously discharged to the outside through ducts. Since this discharged air is forcibly flowed by the collector's blower, it possesses a constant flow pressure and velocity; theoretically, this could be utilized as a potential resource for energy recovery. However, conventionally, it was common practice to simply release this air flow energy into the atmosphere without utilizing it separately, which presented a problem in terms of significant energy efficiency losses. Recently, due to the strengthening of carbon neutrality policies and rising energy costs, there is an increasing demand to recover and recycle waste energy discarded from industrial facilities. Accordingly, research is being conducted on power generation devices to convert the airflow energy emitted from dust collectors into electrical energy. Korean Published Patent Application No. 10-2024-0074075 discloses a wind power generation device for installing a dust collector. Specifically, it discloses a wind power generation device comprising a cyclone section installed at the top or middle of a dust collector chimney, a rotating fan installed at the top of the cyclone section that rotates by exhaust wind, and a power generation section that generates electricity according to the rotation of the rotating fan. However, such conventional wind power generation devices are structured to be equipped with only a single power generation unit, and since the circulating energy of the exhaust air is recovered only once during the power generation process, there is a limitation in that the overall energy recovery efficiency is insufficient. In addition, the air passing through the power generation unit is converted into a turbulent state by the rotation of the blades and discharged; however, this turbulent airflow increases flow resistance during the discharge process and causes noise and vibration, which poses a problem of reducing the overall stability of the system. Furthermore, conventional devices lack standardized coupling structures between components, making flexible assembly difficult according to site conditions or duct specifications. Additionally, in the event of a specific component failure or wear, it is difficult to separate and replace or maintain only that part. Therefore, there is an urgent need to develop technology for a power generation device for a dust collector that is configured to recover the flow energy of exhaust air in multiple stages by stacking multiple power generation units in a vertical direction, stabilize the exhaust air flow by converting turbulent airflow into laminar flow by placing rectification guide units between the power generation units, and enable modular assembly and separation of each unit through a flange joint structure. FIG. 1 is a perspective view showing a power generation device for a dust collector according to one embodiment of the present invention. FIG. 2 is an exploded perspective view of a power generation device for a dust collector according to one embodiment of the present invention. FIG. 3 is a cut-away perspective view of a power generation device for a dust collector according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of a power generation device for a dust collector according to one embodiment of the present invention. FIG. 5 is a drawing illustrating a rectification guide according to one embodiment of the present invention. Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the description in the drawings have been omitted, and the same reference numerals have been used throughout the specification for identical or similar components. The words and terms used in this specification and claims are not limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention in accordance with the principles by which the inventor defines terms and concepts to best describe his invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to preferred embodiments of the present inven