KR20230167964A - Apparatus projecting water mist including plasma - Google Patents

Abstract

The present invention relates to a disinfectant device for spraying water mist containing plasma, which comprises: a hollow body; a plasma generation module positioned inside the body; a blowing unit positioned at the upper portion of the body; a water mist generating unit attached to the body and generating water mist at an upper portion of the blowing unit; an air filter attached to the body and positioned in an opposite direction to the blowing unit; and a control unit which controls a plasma power generation unit, controls the concentration and amount of plasma, and controls the blowing unit. In more detail, the plasma generation module includes: a cylindrical first electrode which is hollow and having a diameter of a predetermined length; a cylindrical dielectric surrounding the first electrode; and a second electrode which wraps the dielectric in a spiral shape. The amount of plasma which is generated is increased by increasing the electrostatic capacitance between the first and second electrodes.

Description

Quarantine device that sprays water mist containing plasma {Apparatus projecting water mist including plasma}

The present invention relates to a quarantine device that sprays water mist containing plasma. It is a low-temperature atmospheric pressure plasma and is equipped with a dielectric to induce a dielectric barrier discharge to generate plasma, and then combines the plasma with the water mist. It is about a quarantine device that sprays this. More specifically, it relates to quarantine equipment that sterilizes pathogens, using low-temperature atmospheric pressure plasma discharge of plasma activated species (OH-), reactive oxygen species (ROS), reactive nitrogen species (RNS), and ozone gas (O ₃ ) with antibacterial properties. It relates to quarantine equipment that sterilizes floating and attached bacteria by generating a mist and then combining it with water mist and transmitting it over a long distance by a blower.

A typical air purifier purifies the air using a dust collection filter made of non-woven fabric to remove dust contained in the air and an activated carbon filter to remove odors, or adopts a method of collecting ionized pollutants using an electric field. . Although such air purifiers are effective to some extent in removing dust contained in the air, they are known to have no significant effect in reducing air pollution because they do not have any function to sterilize germs contained in the air.

Additionally, various air sterilizers have emerged that can sterilize polluted air and change it into clean air.

These air sterilizers are designed to decompose bacteria, viruses, and various chemicals contained in the air. Conventionally, air containing pollutants is passed through an antibacterial filter to purify the air and decompose chemicals using an ultraviolet lamp and a photocatalyst. Air sterilizers have been mainly used. However, these conventional air sterilizers all have the common function of removing various contaminants contained in the air, but the sterilization effect is minimal due to the small contact area between the photocatalyst and the air, and there are limits to sterilization with ultraviolet lamps alone, and filters When used for a long period of time, various dust and foreign substances accumulate in the filter, and the air sterilizer discharges air harmful to the human body into the room, so there is a very high risk of infection such as bad odor, headache, or respiratory disease.

Patent Registration No. 1685170 "Air Sterilizer" and Patent Registration No. 1192846 "Air Sterilizer" are installed inside the case with a filtration filter, a sterilizing unit containing a plurality of antibacterial balls coated with photocatalysts, and an ultraviolet ray generator installed inside the case. It is an air sterilizer configured to discharge the air after the incoming air passes through a plurality of antibacterial balls and is sterilized by a photocatalyst. However, since the above patent has almost the same configuration and structure as a general air sterilizer, it not only has the same problems as the conventional air sterilizer, but also has a problem of almost no effect in removing odor.

The water mist generator using plasma according to the present invention uses dielectric barrier discharge.

Dielectric barrier discharge (DBD) is widely used in industry because it operates under very non-equilibrium conditions at atmospheric pressure, can produce high-power discharges, and does not require complex pulse power supplies. Ozone-generating carbon dioxide laser ultraviolet light source pollutant treatment. It is widely applied, etc.

The specific operation of dielectric barrier discharge is characterized by the insertion of a dielectric between electrodes. When voltage is applied to two metal electrodes with a dielectric between them, if the applied voltage exceeds the insulation voltage between both electrodes, the air insulation between the two electrodes is destroyed and a discharge occurs. Current flows from the 2-electrode-power source to form a closed loop. Additionally, due to this discharge, the atoms or molecules in the air become positively or negatively charged and become ionized.

Korean Patent Publication Registration No. 10-1192846 Korean Patent Publication Registration No. 10-1685170

The present invention is intended to solve the conventional problems described above, and to provide a device for combining plasma activated species with water mist to generate water mist with strong sterilizing power and spraying it into a space.

In order to achieve the object of the present invention as described above, a hollow body; A plasma generation module located inside the body; a blowing unit located at the top of the body; a water mist generator attached to the body and generating water mist at the top of the blower; an air filter attached to the body and located in a direction opposite to the blower; and a control unit that controls the plasma power generation unit to control the concentration and generation amount of plasma and controls the blower, wherein the plasma generation module includes a cylindrical first electrode that is hollow and has a diameter of a certain length; a cylindrical dielectric surrounding the first electrode; a second electrode surrounding the dielectric in a spiral shape; Plasma is generated by creeping discharge occurring between the dielectric and the second electrode by a plasma power generator connected to the first electrode and the second electrode and supplying plasma generation power, and the blower is connected to the air filter and the second electrode. It is characterized in that air generated by plasma is sucked in by the plasma generation module and output to the outside of the body.

In the quarantine device for spraying water mist containing plasma according to the present invention, the first electrode is sealed and surrounded by a dielectric.

In the quarantine device for spraying water mist containing plasma according to the present invention, the first electrode and the second electrode are separated by the dielectric and plasma is generated by the dielectric barrier effect.

In the quarantine device for spraying water mist containing plasma according to the present invention, the pitch of the second electrode is 3 mm to 7 mm.

According to the present invention, plasma activated species combines with water mist to generate water mist with sterilizing power. In addition, the plasma generation module increases the capacitance between the first and second electrodes by increasing the area of the first and second electrodes, and ultimately increases the energy stored between the first and second electrodes, effectively increasing the amount of plasma generation. You can do it.

Figure 1 is a block diagram of a quarantine device for spraying water mist containing plasma according to the present invention.
Figure 2 is a configuration diagram of a quarantine device that sprays water mist containing plasma according to an embodiment of the present invention.
Figure 3 is a combined diagram of the detailed configuration of a quarantine device that sprays water mist containing plasma according to an embodiment of the present invention.
Figure 4 is a detailed configuration diagram of a quarantine device that sprays water mist containing plasma according to an embodiment of the present invention.

Since the present invention can be subject to various changes and have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component without departing from the scope of the present invention.

The terms used in this application are merely used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features or It should be understood that this does not exclude in advance the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted as having an ideal or excessively formal meaning. No.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings.

In the quarantine device for spraying water mist containing plasma according to the present invention, the plasma generation module 200 is hollow and has a cylindrical first electrode 210 with a diameter of a certain length, as shown in FIG. 1, and a dielectric ( 220), a second electrode 230, a plasma power generator 240, and a control unit 600, and generates plasma by creeping discharge occurring between the dielectric 220 and the second electrode 230. Creepage discharge refers to a discharge that causes electrical conduction across the surface of the dielectric 220.

Discharge that occurs along the surface of an object like this is called surface discharge. When creeping discharge occurs, electrons emitted from the electrode collide with the air on the upper surface of the dielectric 220 at high speed and are ionized, thereby generating plasma.

Since various active species generated by plasma are sucked and moved by the blower 300, the introduced air can be continuously sterilized. The blower 300 is attached to the upper part of the body 100 and is manufactured in an upward-and-down beam form, making it easier to combine the plasma activated species and water mist rising from the bottom of the blower 300.

The blowing unit 300 has the effect of spreading the water mist farther in the space.

The plasma power generator 240 generates high voltage and high frequency power. The plasma power generator 240 converts the regular power supplied from the outside into direct current and converts the direct current into high-frequency, high-voltage alternating current power, preferably at a voltage of 4.5KV to 12KV and a frequency of 20KHz to 40KHz. there is.

The control unit 600 can control the concentration of plasma active species by controlling the plasma generation time, cycle, intensity, etc. Additionally, the control unit 600 can control the plasma power generation unit to control the concentration and generation amount of plasma.

Since the blower 300 sucks in external air from the air filter 500, the external air passes through the second electrode area. Accordingly, the plasma generated in the plasma generator 200 is output to the outside of the body 100 by the blower 300 along with air.

The plasma generation module 200 includes a first electrode 210, a second electrode 230, and a dielectric 220 between them.

In the plasma generation module 200, the first electrode 210 has an electrode rod shape and may be hollow. This hollow shape is because a high-frequency power source is applied to the first electrode 210, so the current flowing through the first electrode 210 flows only near the surface of the first electrode, that is, a skin effect occurs, which causes the first electrode 210 to flow only near the surface of the first electrode 210. This is because no current flows through the center of the electrode.

In this way, the first electrode 210 has a diameter of about 2 mm in the embodiment and takes a hollow shape to increase the skin area of the first electrode and minimize loss due to the skin effect.

The dielectric 220 is made of glass in the embodiment of FIG. 2. The dielectric 220 serves to surround the first electrode 210 and induce dielectric barrier discharge with the second electrode 230. Additionally, the dielectric 220 may have a hollow cylindrical shape and may serve to support the first electrode 210 by minimizing the gap with the first electrode 210. In one embodiment, the glass tube can be manufactured with an outer diameter of 4mm, an inner diameter of 2.2mm, and a length of 70mm.

The second electrode 230 is an electrode wound in a spiral shape while contacting the outside of the dielectric 220.

The reason why the second electrode 230 has a spiral shape is to increase its area as an opposite electrode to the first electrode 210. The first electrode 210 and the second electrode 230 act like a kind of condenser through the dielectric 220, and the area of the first electrode 210 and the second electrode 230 is increased. If so, the capacitance between the first electrode 210 and the second electrode 230 increases. Ultimately, the amount of plasma generation can be effectively increased by increasing the energy stored between the first electrode and the second electrode.

In one embodiment of the present invention, the second electrode 230 is wound 30 times for the length of 70 mm of the spiral dielectric 220, but it can also be wound 20 to 50 times. Additionally, a nickel wire with a diameter of 0.25 mm can be applied. The second electrode 230 may be protected using a separate insulating material.

By configuring the first electrode 210, the second electrode 230, and the dielectric 220 as described above, plasma is generated by creeping discharge occurring between the dielectric 220 and the second electrode 230. .

The water mist generator 400 consists of a water tank 410 that stores water, a pump 420 that pressurizes water from the water tank, and a nozzle 430 that sprays the pressurized water.

The water from the nozzle 430 becomes mist and becomes smaller water mist by the blower 300, and the water mist combines with air containing plasma active species sucked in by the blower 300. Ultimately, the water mitt becomes a mist with strong sterilizing power.

In one embodiment of the present invention, the first electrode 210, the second electrode 230, the dielectric 220, and the plasma power generator 240 are integrated and manufactured in a module form to use plasma or ozone. It can be easily applied to air purifiers, sterilizers, deodorizers, combustion gas removers, etc.

When the plasma active species and ozone gas generated in the present invention are spread into the space by the blower, they are combined with a water mist generator and use the water mist as a carrier to maintain the active species over a long distance in the space and spread within the space. Floating and attached bacteria are killed by plasma-activated water (PAW), which contains strong sterilizing power. Water mist combined with plasma active species has strong sterilizing power and can kill floating and attached bacteria.

The plasma generator for an air sterilizer according to the present invention described above is not limited to the above-described embodiments, and can be used by anyone with ordinary knowledge in the relevant technical field without departing from the gist of the technology claimed in the following claims. The technical spirit exists to the extent that it can be implemented with modifications.

100: Body 200: Plasma generation module
210: first electrode 220: dielectric
230 ; Second electrode 240: Plasma power generator
300: blowing unit 400: water mist generating unit
500: air filter 600: control unit

Claims (4)

Hollow body (100);
A plasma generation module 200 located inside the body 100;
A blowing unit 300 located at the top of the body 100;
A water mist generator 400 attached to the body 100 and generating water mist at the top of the blower 300;
an air filter 500 attached to the body 100 and located in the opposite direction of the blower 300; and
It includes a control unit 600 that controls the plasma power generation unit 240, controls the concentration and generation amount of plasma, and controls the blower 300.
The plasma generation module 200 is
A cylindrical first electrode 210 that is hollow and has a diameter of a certain length;
A cylindrical dielectric 220 surrounding the first electrode 210;
a second electrode 230 surrounding the dielectric 220 in a spiral shape;
Creepage occurs between the dielectric 220 and the second electrode 230 by the plasma power generator 240 that is connected to the first electrode 210 and the second electrode 230 and supplies plasma generation power. Generating plasma by discharge,
The blowing unit 300 is
A quarantine device that sprays water mist containing plasma, characterized in that it sucks in air in which plasma is generated by the air filter 500 and the plasma generation module 200 and outputs it to the outside of the body 100. In paragraph 1
The first electrode 210 is a quarantine device that sprays water mist containing plasma, characterized in that the first electrode 210 is wrapped in a sealed state by the dielectric 220. In paragraph 1
The first electrode 210 and the second electrode 230 are separated by the dielectric 220, and a quarantine device for spraying water mist containing plasma is characterized in that plasma is generated by the dielectric barrier effect. In paragraph 1
A quarantine device that sprays water mist containing plasma, characterized in that the pitch of the second electrode 230 is 3 mm to 7 mm.