KR102273990B1 - Apparatus for activating a media with sterilization and air cleaning - Google Patents

Abstract

Disclosed is a medium activation device having sterilization and air purification functions. The medium activation device includes a nozzle having a flow path and a spray port; a medium supply unit for supplying a liquid medium to the flow path; a gas supply unit for supplying air to the flow path; an activation gas generator generating an activation gas; and a control unit for controlling driving of the medium supply unit, the gas supply unit, and the activation gas generation unit according to a sterilization mode and an air purification mode, wherein the gas supply unit includes: a compressor; a gas supply line connecting the compressor and the flow path; and a filter installed on the gas supply line, wherein the liquid medium is supplied to the flow path from the medium supply unit in the sterilization mode, and the liquid medium is sprayed from the spray port in a droplet or mist state. The ambient air mixed with the activation gas and sucked in by the compressor in the air purification mode flows into the flow path through the gas supply line through the filter, and is sprayed to the outside through the spray port.

Description

Apparatus for activating a media with sterilization and air cleaning

The present invention relates to a medium activating device, and more particularly, to a medium activating device having a sterilization mode and an air purification mode function.

In general, hospitals, laboratories, good manufacturing practices (GMP, Good Manufacturing Practice), animal breeding facilities, biological safety such as BSL-3, Biological Safety Level-3, aseptic preparation of food and pharmaceuticals, etc. In manufacturing facilities, internal laboratories and production rooms are required to maintain clean, sterile conditions. This sterilization means a high level of treatment in that it completely removes all kinds of living microorganisms through physical and chemical action, unlike cleaning or disinfection.

A method using an activated medium as such a sterilization method has been tried. In this method, the medium is sprayed with a high injection pressure, and a high voltage of about 17,000 V to 20,000 V is applied to the area where the medium is injected to activate the medium. However, in this method, since the medium passes through the electric field within a short time, it is difficult to sufficiently activate the medium.

Korean Patent Publication No. 10-2017-0093746 (published on August 16, 2017)

The present invention relates to a medium activating device capable of sterilizing surroundings and purifying particles of a medium sprayed into the air during the sterilization process.

A medium activating device according to the present invention includes a nozzle having a flow path and a spray port; a medium supply unit for supplying a liquid medium to the flow path; a gas supply unit for supplying air to the flow path; an activation gas generator generating an activation gas; and a control unit for controlling driving of the medium supply unit, the gas supply unit, and the activation gas generation unit according to a sterilization mode and an air purification mode, wherein the gas supply unit includes: a compressor; a gas supply line connecting the compressor and the flow path; and a filter installed on the gas supply line, wherein the liquid medium is supplied to the flow path from the medium supply unit in the sterilization mode, and the liquid medium is sprayed from the spray port in a droplet or mist state. The ambient air mixed with the activation gas and sucked in by the compressor in the air purification mode flows into the flow path through the gas supply line through the filter, and is sprayed to the outside through the spray port.

In addition, the flow path is formed in the central region of the nozzle and includes a first flow path through which the liquid medium is supplied from the medium supply unit, and a second flow path surrounding the first flow path and supplied with air from the gas supply unit, The activation gas generator may be provided on the gas supply line in a section between the filter and the second flow path, generate the activation gas in the sterilization mode, and stop generation of the activation gas in the air purification mode.

The activation gas generator may include: a dielectric film formed on an outer circumferential surface of the nozzle; a power electrode provided on the dielectric film; and a power source for applying power to the power electrode, wherein power is applied to the power electrode from the power source in the sterilization mode, the ambient air of the power electrode is activated to generate the activation gas, and the air purification mode In the power supply, the application of power to the power electrode may be interrupted.

In addition, the activation gas generator may include: a dielectric tube having a space inside which the tip of the nozzle is inserted and having an inner diameter greater than that of the tip of the nozzle; a power electrode provided on an outer circumferential surface of the dielectric tube; a ground electrode spaced apart from the power electrode by a predetermined distance and provided on an outer circumferential surface of the dielectric tube; an insulator film coated on an outer circumferential surface of the dielectric tube such that the power electrode and the ground electrode are positioned therein; and a power source for applying power to the power electrode, wherein power is applied to the power electrode from the power source in the sterilization mode, and ambient air is activated in a space between the dielectric tube and the tip of the nozzle to activate the activation gas is generated, and power application to the power electrode from the power source may be blocked in the air purification mode.

According to the present invention, the medium particles contained in the air can be removed by spraying the activated medium into the air in the sterilization mode to sterilize the surroundings, and circulating the surrounding air into the device in the air purification mode.

1 is a perspective view illustrating an apparatus for activating a medium according to a first embodiment of the present invention.
FIG. 2 is a conceptual diagram illustrating the apparatus for activating the medium of FIG. 1 .
3 is a perspective view showing a medium spray gun according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing the medium spray gun of Figure 3;
5 is a perspective cross-sectional view illustrating a nozzle according to an embodiment of the present invention.
FIG. 6 is a front view of the nozzle of FIG. 5 , and FIG. 7 is a cross-sectional view illustrating a part of the nozzle of FIG. 5 .
8 is a cross-sectional view illustrating the activation gas generator of FIG. 4 .
9 is a view showing a medium activating device according to a second embodiment of the present invention.
10 is a conceptual diagram illustrating the medium activating device of FIG. 9 .
11 is a diagram illustrating a nozzle and an activation gas generator according to an embodiment of the present invention.
12 is a view showing a nozzle and an activation gas generator according to another embodiment of the present invention.
13 is a diagram illustrating a nozzle and an activation gas generator according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In this specification, when a component is referred to as being on another component, it may be directly formed on the other component or a third component may be interposed therebetween. In addition, in the drawings, thicknesses of films and regions are exaggerated for effective description of technical content.

In addition, in various embodiments of the present specification, terms such as first, second, third, etc. are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another. Accordingly, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes a complementary embodiment thereof. In addition, in the present specification, 'and/or' is used to mean including at least one of the elements listed before and after.

In the specification, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" are intended to designate that a feature, number, step, element, or a combination thereof described in the specification is present, and one or more other features, numbers, steps, configuration It should not be construed as excluding the possibility of the presence or addition of elements or combinations thereof. Also, in the present specification, the term “connection” is used to include both indirectly connecting a plurality of components and directly connecting a plurality of components.

In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a perspective view illustrating an apparatus for activating a medium according to a first embodiment of the present invention.

Referring to FIG. 1 , the medium activating device 10 activates the medium. In an embodiment, the medium comprises a sterilizing solution. The sterilizing solution may be provided in which hydrogen peroxide is contained in a small amount in water. Hydrogen peroxide may be contained in a low concentration of 7.5% or less. In addition, hydrogen peroxide may be contained in a concentration of 7.5% or 3.0%. The medium activating device may activate the medium and supply the activated medium to the environment to sterilize the environment.

In addition, the medium may contain a first additive and a second additive.

The first additive is provided for the purpose of removing metal ions contained in the medium. The decomposition of hydrogen peroxide may be accelerated by a small amount of metal ions (ions such as Mn, Fe, Cu, Pb, Ag, and Pt) contained in the sterilizing solution. Therefore, it is necessary to stabilize the hydrogen peroxide by removing these metal ions. The first additive may be at least one selected from sodium pyrophosphate, magnesium sulfate, sodium silicate, citric acid, and diethylenetriaminepentaacetic acid (DTPA).

The second additive enhances the disinfection effect through combination with hydrogen peroxide. According to an embodiment, DTPA is used as the second additive. DTPA reacts with hydrogen peroxide to produce peracetic acid. Peracetic acid has an excellent microbial sterilization effect, does not form chlorine disinfection by-products, and can be decomposed in an environmentally friendly manner. In addition, it has a long shelf life of 12 to 18 months and minimizes pH and temperature dependence. And it has the advantage of being safe and easy to handle and store.

The medium activating device 10 includes a body module 100 and a medium spray gun 200 . The body module 100 is provided in a structure movable by a user, and supplies a liquid medium and compressed gas to the medium spray gun 200 . The medium spray gun 200 activates a liquid medium and sprays the activated medium to the surroundings.

FIG. 2 is a conceptual diagram illustrating the apparatus for activating the medium of FIG. 1 .

1 and 2, the body module 100 includes a body 110, a moving wheel 120, a handle 130, a medium supply unit 140, a gas supply unit 150, a sensor 160, and a control unit 170 .

The body 110 has a predetermined shape, and a space that can accommodate the components 140 to 170 of the body module 110 described above is formed therein.

A plurality of moving wheels 120 are provided on the bottom surface of the body 110 . The moving wheels 120 roll along the ground, and facilitate the movement of the body 110 .

The body 110 is provided with a handle 130 . The handle 130 may be held by a user's hand to control the movement and direction of the body 110 .

A spray gun receiving part 111 is provided on one side of the body 110 . The spray gun accommodating part 111 may accommodate the medium spray gun 200 , and when necessary, the user can easily take out the medium spray gun 200 and use it.

The medium supply unit 140 supplies a liquid medium to the nozzle 220 of the medium spray gun 200 . The medium supply unit 140 includes a medium storage tank 141 , a medium supply line 142 , and a pump 143 .

The medium storage tank 141 is provided in the body 110 and stores a liquid medium. The medium supply line 142 connects the medium storage tank 141 and the nozzle 220 , and supplies the liquid medium to the nozzle 220 . The pump 143 is installed on the medium supply line 142 and transfers the liquid medium to the nozzle 220 side.

The gas supply unit 150 sucks in ambient air and supplies the sucked air to the nozzle 220 . The gas supply unit 150 includes a compressor 151 , a gas supply line 152 , and a filter 153 .

The compressor 151 is provided in the body 110, and sucks and compresses ambient air. The gas supply line 152 connects the compressor 151 and the nozzle 220 , and supplies air sucked in from the compressor 151 to the nozzle 220 . The filter 153 is installed on the gas supply line 152 and filters particles included in the air transferred along the gas supply line 152 .

The sensor 160 is installed in the body 110, and analyzes the components of the surrounding air. According to an embodiment, the sensor 160 may measure the concentration of hydrogen peroxide contained in the air.

The control unit 170 controls the operation of the medium activating device 10 between the sterilization mode and the air purification mode. The controller 170 controls the operation of the pump 142 , the compressor 151 , and the activation gas generator 230 . In the sterilization mode, the activated medium is supplied to the surroundings through the medium activating device 10 to sterilize the surroundings. In the air purification mode, the ambient air is circulated in the medium activating device 10 for a certain period of time, and particles contained in the ambient air are filtered out during the circulation process. The particles comprise an activated medium atomized in sterilization mode and by-products generated during the sterilization process. According to an example, when the sterilization mode is performed in an enclosed space, the activated medium is accumulated in the air, and thus the concentration of hydrogen peroxide increases. In the air purification mode, by removing the hydrogen peroxide contained in the air through the filter 153, it is possible to lower the concentration of hydrogen peroxide in the air.

Figure 3 is a perspective view showing a medium spray gun according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing the medium spray gun of Figure 3, Figure 5 is a perspective cross-sectional view showing a nozzle according to an embodiment of the present invention , Figure 6 is a front view of the nozzle of Figure 5, Figure 7 is a cross-sectional view showing a part of the nozzle of Figure 5.

3 to 7 , the medium spray gun 200 includes a case 210 , a nozzle 220 , an activation gas generator 230 , and a laser generator 260 .

The case 210 has an internal space in which the components of the above-described medium spray gun 200 can be accommodated. In addition, the case 210 is provided with a handle 211 . The handle portion 211 is provided as an area that an operator can hold by hand.

A first opening 212 and a second opening 213 are formed on the front surface of the case 210 . The first opening 212 is provided as a path through which the activated medium is sprayed to the outside, and the second opening 213 is provided as a path through which the laser light generated by the laser generator 260 is irradiated to the outside.

The nozzle 220 is located in the inner space of the case 210, and a flow path is formed therein. The flow path is formed by separating the first flow path 221 and the second flow path 225 .

The first flow path 221 is formed on the central axis of the nozzle 220 , and has a first spray hole 222 and a flow path reduction region 223 . The first spray port 222 is located at the end of the first flow path 221 . The flow path reduction region 223 communicates with the first spray hole 222 and the inner diameter gradually decreases as it approaches the first spray hole 222 . The flow path reduction region 223 may be provided in a conical shape.

The second flow path 225 has the same central axis as the first flow path 221 and is provided to surround the first flow path 221 . The second flow path 225 has a second spray hole 226 and a flow path slope region 227 . The second spray port 226 is located at the end of the second flow path 225 . The second atomizer 226 has a ring shape and has the same center as the first atomizer 222 . The second atomizer 226 is provided to surround the first atomizer 222 .

The flow path slope region 227 communicates with the second atomizer 226 , is inclined at a predetermined angle with respect to the central axis of the second atomizer 226 , and gradually increases in diameter toward the rear from the second atomizer 226 . increases The flow path slope region 227 is provided with a constant flow path width W from the second spray hole 226 to the rear side. Accordingly, the flow path slope region 227 has a funnel shape and is disposed to surround the flow path reduction region 223 .

An activation gas inlet 229 is formed on the outer surface of the nozzle 220 , and the activation gas inlet 229 communicates with the second flow path 225 .

The activation gas generator 230 is located in the inner space of the case 210 . The activation gas generator 230 is connected to the gas supply line 152 and activates air by applying an electric field to generate an activation gas. The activating gas may include ozone, nitrogen oxides, hydroxide base, carbon dioxide and carbon monoxide. Ozone, nitrogen oxide, hydroxyl base, etc. may be in a radical state.

8 is a cross-sectional view illustrating the activation gas generator of FIG. 4 .

4 and 8 , the activation gas generator 230 includes a first electrode tube 232 , a barrier 233 , a second electrode tube 234 , and first and second connection terminals 235 and 236 . , and a power source (not shown).

The first electrode tube 232 is a metal tube made of a conductive material, and is connected to the (+) pole of the power source through the first connection terminal 235 .

The barrier 233 is inserted inside the first electrode tube 232 , and a tip protrudes outward of the first electrode tube 232 . The barrier is provided by a tube made of dielectric material. According to an embodiment, the barrier 233 is at least one of polyimide (PI), polyethylene terephthalate (PET), polyethersulfone (PES), polytetrafluoroethylene (PTFE, Polytetrafluoroethylene), and polycarbonate (polycarbonate). It may be provided with any one material. Air supplied through the second air supply line 152 may flow in the inner space of the barrier 233 .

The second electrode tube 234 is a metal tube made of a conductive material, is spaced apart from the first electrode tube 232 by a predetermined distance, and is connected to the activation gas supply line 240 . The second electrode tube 234 is connected to the (-) pole of the power source through the second connection terminal 236 .

When power is applied from the power source, an electric field is generated between the first electrode tube 232 and the second electrode tube 234 , and the electric field activates air passing through the barrier 233 . According to the embodiment, it is possible to activate the air by applying a low power of 1 to 30 watts (W).

Among the regions of the gas supply line 152 , a region 152a connecting the second electrode tube 234 and the second flow path 225 of the nozzle 220 may be made of a dielectric material. According to an embodiment, the region 152a may be made of a polytetrafluoroethylene material. The material stably maintains the activation gas in a radical state.

The laser generator 260 is located in the case 210 and generates laser light. The laser light is irradiated to the outside of the case 210 through the second opening 213, and informs the user of the direction in which the activation medium is injected.

Hereinafter, an operation process of the medium activating device according to the first embodiment will be described.

In the medium activating device 10, a sterilization mode and an air purification mode are sequentially performed.

In the sterilization mode, the controller 170 drives the pump 142 and the compressor 151 , and applies power to the first electrode tube 232 from the power of the activation gas generator 230 . The liquid medium is supplied to the first flow path 221 by the operation of the pump 142 , and the liquid medium is sprayed to the outside in a droplet or mist state through the first spray port 222 . When the compressor 151 is driven, air is supplied through the gas supply line 152 , and the air is generated as an activation gas by the activation gas generator 230 . The activation gas is supplied to the second flow path 225 and is sprayed to the outside through the second spray hole 226 . The activation gas is introduced into the medium by the flow of the medium sprayed from the first spray port 222 . The activity of the medium in the droplet or mist state is improved by binding with the activating gas. By improving the activity of the medium, the sterilization power is increased. In particular, the medium in the form of droplets or mist is mainly combined with ozone radicals contained in the activation gas, so that the sterilization power may be further improved.

The control unit 170 switches from the sterilization mode to the air purification mode by the user's operation. In the air purification mode, the control unit 170 stops the operation of the pump 142 and the application of power to the first electrode tube 232 , and drives the compressor 151 . With the operation of the compressor 151 , ambient air flows into the gas supply line 152 . Air moves along the gas supply line 152 through the filter 153 to the second flow path 225 of the nozzle 220 , and is sprayed to the outside through the second spray port 226 . In this air circulation process, the hydrogen peroxide particles and by-products contained in the air are filtered by the filter 153 to lower the concentration of hydrogen peroxide in the surrounding air. The air purification mode is carried out until the hydrogen peroxide concentration in the ambient air is reduced below the reference value.

9 is a diagram illustrating a medium activating apparatus according to a second embodiment of the present invention, and FIG. 10 is a conceptual diagram illustrating the medium activating apparatus of FIG. 9 .

9 and 10 , the body module 100 includes a body 110 , a moving wheel 120 , a handle 130 , a medium supply unit 140 , a gas supply unit 150 , a sensor 160 , and a control unit 170 .

The body 110 has a predetermined shape, and a space that can accommodate the components 140 to 170 of the body module 110 described above is formed therein.

A medium spray gun receiving part 111 is provided on the front side of the body 110 . The medium spray gun 200 may be accommodated in the medium spray gun accommodating part 111 , and when necessary, the user can easily take out the medium spray gun 200 and use it.

The medium supply unit 140 supplies a liquid medium to the nozzle 220 of the medium spray gun 200 . The medium supply unit 140 includes a medium storage tank 141 , a medium supply line 142 , a first valve 143 , and a pump 144 .

The medium storage tank 141 is provided in the body 110 and stores a liquid medium. The medium supply line 142 connects the medium storage tank 141 and the nozzle 220 , and supplies the liquid medium to the nozzle 220 . The pump 144 is installed on the medium supply line 142 and transfers the liquid medium to the nozzle 220 side. The first valve 143 is provided on the medium supply line 142 in the section between the pump 144 and the nozzle 220 . The supply of the liquid medium is controlled by the opening and closing control of the first valve 143 .

The gas supply unit 150 sucks in ambient air and supplies the sucked air to the nozzle 220 . The gas supply unit 150 includes a compressor 151 , a gas supply line 152 , a filter 153 , and a second valve 154 .

The compressor 151 is provided in the body 110, and sucks and compresses ambient air. The gas supply line 152 has one end connected to the compressor 151 and the other end connected to the medium supply line 142 . The filter 153 is installed on the gas supply line 152 and filters particles included in the air transferred along the gas supply line 152 . The second valve 154 is installed on the gas supply line 152 in a section between the connection section between the gas supply line 152 and the medium supply line 142 and the filter 153 .

The sensor 160 is installed in the body 110, and analyzes the components of the surrounding air. According to an embodiment, the sensor 160 may measure the concentration of hydrogen peroxide contained in the air.

The control unit 170 controls the operation of the pump 144 and the compressor 151 and the opening and closing of the valves 143 and 154 according to the above-described sterilization mode and air purification mode. And the control unit 170 controls the driving of the activation gas generating unit 230 of the medium injection gun 200 .

The medium spray gun 200 includes a case 210 , a nozzle 220 , and an activation gas generator 230 .

The case 210 has an internal space in which the components of the above-described medium spray gun 200 can be accommodated.

11 is a diagram illustrating a nozzle and an activation gas generator according to an embodiment of the present invention.

10 and 11 , the nozzle 220 is mounted in front of the case 210 . The nozzle 220 has a flow path 221 formed on a central axis, and the flow path 221 is connected to the medium supply line 142 . The flow path 221 has a flow path reduction region 222 and a spray port 223 . The spray port 223 is located at the end of the flow path 221 . The flow path reduction region 222 communicates with the spray port 223 , and the inner diameter gradually decreases as it approaches the spray hole 223 . The flow path reduction region 222 may be provided in a conical shape.

The front end 225 of the nozzle 220 may have a diameter gradually decreasing toward the front end, so that the outer peripheral surface of the front end 224 may be provided as an inclined surface. A thickness between the inner surface and the outer peripheral surface of the nozzle 220 may have a thickness of 0.3 to 0.7 mm. According to the embodiment, the thickness between the inner surface and the outer peripheral surface of the nozzle 220 may be 0.5mm.

The nozzle 220 is provided with a conductive material. The nozzle 220 is grounded and serves as a ground electrode.

The activating gas generating unit 230 generates activating gas by activating ambient air around the tip 225 of the nozzle 220 . The activation gas generator 230 includes a dielectric layer 231 , a power electrode 232 , and a power source 233 .

The dielectric layer 231 is a dielectric material and may be coated on the outer circumferential surface of the nozzle 220 . The dielectric layer 231 may be coated over the entire area from the rear end to the front end of the nozzle 220 .

The power electrode 232 may be provided on the dielectric layer 231 . The power electrode 232 is provided in the longitudinal direction of the nozzle 220 , and the front end 232a is positioned on an inclined surface between the front end and the rear end of the front end 223 of the nozzle 220 .

The power source 234 applies power to the power electrode 232 .

The liquid medium is supplied to the flow path 221 of the nozzle 220 through the medium supply line 142 . The liquid medium is sprayed at high pressure in a droplet or mist state 21 through the flow path change region 222 and the spray port 223 in the flow path 221 . During the spraying process of the medium, a negative pressure is formed around the spray port 223, and the ambient air 22 is introduced by the negative pressure to the "? direction" of the medium 21. In the vicinity of the nozzle 220, the nozzle 220 ) along the outer circumferential surface of the air stream 22 is formed in the front area of the spray port 223 .

Meanwhile, when power is applied from the power source 233 , the activation gas 23 is generated in the boundary region of the front end 232a of the power electrode 232 . The activation gas 23 is generated by activating the ambient air of the power electrode 232 with electrons, ozone in a radical state, nitrogen oxides, hydroxide base, and the like. The activating gas 23 flows into the front area of the atomizer 223 along the air stream 22 around the nozzle 220 and mixes with the medium 21 in the form of droplets or mist. The activity of the medium 21 in a droplet or mist state is improved by bonding with the activating gas 23 . By improving the activity of the medium 21, the sterilization power is increased. In particular, the medium 21 in a droplet or mist state is mainly combined with ozone radicals contained in the activation gas 23, so that the sterilization power can be further improved.

Hereinafter, an operation process of the medium activating device according to the second embodiment will be described.

In the medium activating device 10, a sterilization mode and an air purification mode are sequentially performed.

In the sterilization mode, the control unit 170 opens the first valve 143 and closes the second valve 154 . The controller 170 drives the pump 144 and applies power to the power electrode 232 from the power source 233 of the activation gas generator 230 . The liquid medium is supplied to the flow path 221 of the nozzle 220 by driving the pump 144 , and the liquid medium is sprayed to the outside in a droplet or mist state through the spray port 223 .

When power is applied to the power electrode 232 , the activation gas 23 is generated in the boundary region of the front end 232a of the power electrode 232 . The activating gas 23 flows into the front area of the atomizer 223 along the air stream 22 around the nozzle 220 and mixes with the medium 21 in the form of droplets or mist.

The control unit 170 switches from the sterilization mode to the air purification mode by the user's operation. In the air purification mode, the control unit 170 stops the operation of the pump 144 , blocks the first valve 143 and opens the second valve 154 . The control unit 170 drives the compressor 151 . With the operation of the compressor 151 , the ambient air sequentially passes through the gas supply line 152 , the filter 153 , and the medium supply line 142 , and passes through the flow path 221 and the spray port 223 of the nozzle 220 . sprayed to the outside through In this air circulation process, the hydrogen peroxide particles and by-products contained in the air are filtered by the filter, and the concentration of hydrogen peroxide in the surrounding air is lowered.

12 is a view showing a nozzle and an activation gas generator according to another embodiment of the present invention.

Referring to FIG. 12 , the activation gas generator 230 includes a dielectric tube 231 , a power electrode 232 , an insulator layer 234 , and a power source (not shown).

The dielectric tube 231 is a tube made of a dielectric material, and a space is formed therein. The nozzle tip 225 is positioned in the inner space of the dielectric tube 231 . The dielectric tube 231 has an inner surface facing the tip 225 of the nozzle, and an outer surface provided parallel to the inner surface. The inner surface of the dielectric tube 231 is inclined in the same direction as the inclined surface of the nozzle tip 225 . The inner surface of the dielectric tube 231 has a larger diameter than the front end 225 of the nozzle, and maintains a predetermined distance from the outer circumferential surface of the nozzle tip 225 .

The power electrode 232 is provided on the outer surface of the dielectric tube 231 and is spaced apart from each other by a predetermined distance. The power electrode 232 is connected to a power source and power is applied thereto.

An insulator film 234 is coated on the outer surface of the dielectric tube 231 so that the power electrode 232 is positioned inside. The insulator film 234 is coated on the entire area of the power electrode 232 , thereby blocking the contact of the power electrode 232 with external air. The insulator layer 234 may be made of the same material as the dielectric tube 231 .

The nozzle 330 is grounded and serves as a ground electrode.

When power is applied to the power electrode 232 , the activation gas 23 is generated in a space between the inner surface of the dielectric tube 231 and the nozzle tip 225a. The activation gas 23 flows into the front area of the atomizing port 223 along the air stream 22 generated by the atomization of the medium 21 , and is mixed with the medium 21 in the form of droplets or mist.

13 is a view illustrating a nozzle and an activation gas generator according to another embodiment of the present invention.

Referring to FIG. 13 , unlike the embodiment of FIG. 12 , the tip 225 of the nozzle 220 has the same diameter as other regions. In addition, the dielectric tube 231 may be provided with the same inner diameter. When electric power is applied to the power electrode 232 , an activation gas 23 is generated in a space between the dielectric tube 231 and the nozzle tip 225 . The activating gas 23 flows into the front area of the atomizing port 223 along the air stream 22 generated by the atomization of the medium, and is mixed with the medium 21 in the form of droplets or mist.

As mentioned above, although the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to specific embodiments and should be construed according to the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

10: medium activation device
100: body module
110: body
120: moving wheel
130: handle part
140: medium supply unit
150: gas supply
160: sensor
170: control unit
200: medium spray gun
210: case
220: nozzle
230: activation gas generating unit
260: laser generating unit

Claims (4)

a nozzle formed with a flow path and a spray port;
a medium supply unit for supplying a liquid medium to the flow path;
a gas supply unit for supplying air to the flow path;
an activation gas generator generating an activation gas; and
A control unit for controlling driving of the medium supply unit, the gas supply unit, and the activation gas generation unit according to a sterilization mode and an air purification mode,
The gas supply unit,
compressor;
a gas supply line connecting the compressor and the flow path; and
It includes a filter installed on the gas supply line,
In the sterilization mode, the liquid medium is supplied to the flow path from the medium supply unit, and the liquid medium is sprayed from the spray port in a droplet or mist state and mixed with the activation gas,
In the air purification mode, ambient air sucked in by the compressor is introduced into the flow path through the gas supply line through the filter, and is sprayed to the outside through the spray port. The method of claim 1,
The flow path is formed in the central region of the nozzle and includes a first flow path through which the liquid medium is supplied from the medium supply unit, and a second flow path surrounding the first flow path and through which air is supplied from the gas supply unit,
The activation gas generator is provided on the gas supply line in a section between the filter and the second flow path, and generates the activation gas in the sterilization mode, and stops the generation of the activation gas in the air purification mode. . The method of claim 1,
The activation gas generator,
a dielectric film formed on an outer peripheral surface of the nozzle;
a power electrode provided on the dielectric film; and
A power source for applying power to the power electrode,
In the sterilization mode, power is applied to the power electrode from the power source, the ambient air of the power electrode is activated to generate the activation gas,
In the air purification mode, the medium activation device in which the application of power to the power electrode from the power source is blocked. The method of claim 1,
The activation gas generator,
a dielectric tube having a space in which the front end of the nozzle is inserted and having an inner diameter larger than that of the front end of the nozzle;
a power electrode provided on an outer circumferential surface of the dielectric tube;
a ground electrode spaced apart from the power electrode by a predetermined distance and provided on an outer circumferential surface of the dielectric tube;
an insulator film coated on an outer circumferential surface of the dielectric tube such that the power electrode and the ground electrode are positioned therein; and
and a power source for applying power to the power electrode,
In the sterilization mode, power is applied to the power electrode from the power source, and ambient air is activated in the space between the dielectric tube and the tip of the nozzle to generate the activation gas,
In the air purification mode, the medium activation device in which the application of power to the power electrode from the power source is blocked.

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