KR-20260062221-A - ACOUSTOFLUIDIC FINE DUST FILTERING DEVICE AND METHOD FOR INDOOR AIR PURIFICATION

KR20260062221AKR 20260062221 AKR20260062221 AKR 20260062221AKR-20260062221-A

Abstract

The present invention relates to an acoustic microfluidic fine dust filtration device and method for indoor air purification, wherein the device comprises: an intake unit for introducing external air; a dust collection spray tower unit for collecting fine dust in the external air together with spray water through a water spray and discharging moist fine dust; an acoustic microfluidic filtration unit for receiving the moist fine dust and separating the fine dust from filtered water formed by aggregating the spray water; a filtered water circulation unit for circulating and reusing the filtered water to generate the water spray; and a discharge unit for discharging purified air generated by purifying the external air through the dust collection spray tower unit.

Inventors

박진수
차범석
김우혁
이송하
박정은
김현욱
김수영
김성원
채원

Assignees

전남대학교산학협력단

Dates

Publication Date: 20260507
Application Date: 20241028

Claims (9)

intake section for introducing external air; A dust collection spray tower section that collects fine dust in the external air along with spray water through a water spray and discharges moist fine dust; Acoustic microfluidic filtration unit that receives the above moisture fine dust and separates the fine dust from the filtered water formed by aggregating the above spray water; A filtered water circulation unit that circulates and reuses the filtered water to generate the above water spray; and Acoustic microfluidic fine dust filtration device for indoor air purification comprising a discharge section that discharges purified air generated by purifying the external air through the dust collection spray tower section.
In claim 1, the suction part Acoustic microfluidic fine dust filtration device for indoor air purification characterized by drawing in the above-mentioned external air through a fan.
In paragraph 1, the dust collection spray tower part Acoustic microfluidic fine dust filtration device for indoor air purification, characterized by generating the spray water using water from a water reservoir in the filtered water circulation section and spraying the spray water through a water spray nozzle installed in the internal space between the external air and the purified air air flow passage.
In paragraph 3, the dust collection spray tower part Acoustic microfluidic fine dust filtration device for indoor air purification, characterized by configuring a discharge passage for discharging the moist fine dust at the lower part of the discharge section to discharge the moist fine dust in the direction of the acoustic microfluidic filtration section.
In claim 1, the acoustic microfluidic filter is A microfluidic chip channel connected to the discharge path at the bottom of the above discharge section for introducing the above moisture fine dust; An IDT (Interdigital Transducer) electrode disposed in the above-mentioned microfluidic chip channel and emitting surface acoustic waves to the above-mentioned moisture fine dust; and Acoustic microfluidic fine dust filtration device for indoor air purification, characterized by including a branching channel composed of a fine dust-carrying wastewater channel and a filtered water channel formed by branching from the above-mentioned microfluidic chip channel.
In paragraph 5, the acoustic microfluidic filter is Acoustic microfluidic fine dust filtration device for indoor air purification, characterized by providing acoustic radiation force to the particles of the moist fine dust through surface acoustic waves of the IDT electrode to move the fine dust to the fine dust-carrying wastewater.
In paragraph 5, the above IDT electrode A piezoelectric substrate that generates the above surface acoustic waves; and Acoustic microfluidic fine dust filtration device for indoor air purification, characterized by including first and second electrode patterns that are interlocked with each other in a comb-shaped structure having a constant spacing and thickness and form an acoustic pressure field within a microfluidic chip channel through which the moisture fine dust passes.
In claim 1, the filtered water circulation unit A filtered water that provides a movement path for the above filtered water; and Acoustic microfluidic fine dust filtration device for indoor air purification characterized by including water and a water reservoir for storing the filtered water.
In an acoustic microfluid fine dust filtration method for indoor air purification, Intake stage for introducing external air; A dust collection spray tower stage that collects fine dust in the external air together with spray water through a water spray and discharges moist fine dust; Acoustic microfluidic filtration step for receiving the above moisture fine dust and separating the fine dust from the filtered water obtained by aggregating the above spray water; A filtered water circulation step for circulating and reusing the filtered water to generate the above water spray; and Acoustic microfluid fine dust filtration method for indoor air purification comprising a discharge step for discharging purified air generated by purifying the external air through the dust collection spray tower step.

Description

Acoustic Microfluidic Fine Dust Filtering Device and Method for Indoor Air Purification The present invention relates to indoor air purification technology, and more specifically, to an acoustic microfluidic fine dust filtration device and method for indoor air purification that can purify indoor air in vehicles, etc., without using a physical filtration filter. Indoor air quality is one of the factors closely related to human health. Consequently, interest in the air quality of indoor spaces, such as residential and office areas where people spend relatively long periods of time, is on the rise day by day. Recently, devices for purifying air inside vehicles are being developed in various forms. Vehicle air purifiers purify the interior environment by filtering fine dust from the air inside the vehicle. A vehicle air purifier can be configured to include an air intake, a filter, and an air exhaust. The vehicle air purifier draws in air from inside the vehicle, filters out fine dust using a filter, and then releases the filtered air back into the vehicle. However, conventional car air purifiers have the problem of increasing maintenance costs and causing environmental pollution as they require periodic replacement of filtration filters. FIG. 1 is a drawing showing an acoustic microfluid fine dust filtration device for indoor air purification according to the present invention. Figure 2 is a diagram showing the acoustic microfluidic filter of Figure 1. FIG. 3 is a flowchart illustrating an acoustic microfluid fine dust filtration method for indoor air purification according to the present invention. FIG. 4 is a drawing showing an example of implementation of an acoustic microfluidic fine dust filtration device for indoor air purification according to one embodiment. The description of the present invention is merely an example for structural or functional explanation, and therefore the scope of the present invention should not be interpreted as being limited by the examples described in the text. That is, since the examples are subject to various modifications and may take various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical concept. Furthermore, the objectives or effects presented in the present invention do not imply that a specific example must include all of them or only such effects; therefore, the scope of the present invention should not be understood as being limited by them. Meanwhile, the meaning of the terms described in this application should be understood as follows. Terms such as "first," "second," etc., are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that one component is "connected" to another component, it should be understood that it may be directly connected to that other component, or that there may be other components in between. Conversely, when it is stated that one component is "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationships between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way. A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the implemented features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. In each step, identifiers (e.g., a, b, c, etc.) are used for convenience of explanation and do not describe the order of the steps; the steps may occur differently from the specified order unless a specific order is clearly indicated in the context. That is, the steps may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order. Unless otherwise defined, all terms used herein have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the context of the relevant technology and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined in this application. FIG. 1 is a drawing showing an acoustic microfluid fine dust filtration device for indoor air purification according to the present invention. Referring to FIG. 1, an acoustic microfluidic fine dust filtration device for indoor air purification (here