KR101870806B1 - A plane plasma device for generating to a ionization hydrogen peroxide aerosol - Google Patents

Abstract

The present invention relates to a cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol, and more particularly to a cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol (IHPA), comprising a hydrogen peroxide solution storage and supply unit ; An air supply unit provided with an air pump for introducing external air and supplying pressurized air; A spray device for spraying the hydrogen peroxide solution in the form of mist through the spray nozzle by receiving the hydrogen peroxide solution and pressurized air from the hydrogen peroxide solution storage and supply part and the air supply part; A plasma generator disposed in proximity to a spray nozzle of the sprayer unit and having a plasma electrode for generating a plasma discharge so that hydrogen peroxide sprayed in a mist form is dispersed in the form of ionized hydrogen peroxide aerosol (IHPA); And a plasma power supply unit for supplying power to a plasma electrode of the plasma generator unit to cause a plasma discharge in the plasma generator unit.
According to the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol proposed in the present invention, in the construction of the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol, by constituting the plasma electrode in the form of the surface electrode, It is possible to increase the ionization efficiency of hydrogen peroxide and the amount of IHPA by widening the contact area between the spray droplet mist and the plasma electrode.
In addition, according to the present invention, by forming a plasma electrode in the form of a surface electrode so that a flat plasma discharge can be generated, the ionization efficiency of hydrogen peroxide and the amount of IHPA, which are increased together with the fine particle size, It is possible to further improve the original activity of the space penetration and the mobility of the molecular structure, which enable sterilization and removal of microorganisms, bacteria and fungi which may exist in the microorganism.

Description

TECHNICAL FIELD [0001] The present invention relates to a surface plasmatic device for generating an ionized hydrogen peroxide aerosol,

The present invention relates to a cotton plasma apparatus, and more particularly to a cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol.

Generally, there is a need to establish a sterilization and manufacturing facility for biological safety, food and pharmaceuticals such as laboratories, animal breeding facilities, Good Manufacturing Practice (GMP), biological safety level (BSL-3 grade, Biological Safety Level-3) Internal laboratory and production rooms require clean, sterile management. Unlike cleaning or disinfection, this sterilization means a high level of treatment in that it means completely eliminating all living microorganisms through physical and chemical action. Currently, EO (ethylene oxide, ethylene oxide) gas, steam, hydrogen peroxide, and plasma are used for the sterilization method.

It has been reported that sterilization using EO gas, by itself, has a high risk of explosion and acts as a genotoxic substance causing mutation. Steam sterilizers are considered to be one of the safest ways to meet sterilization power to a certain level. The steam sterilizer is advantageous in that it is not toxic, its price is comparatively cheap, and it is possible to sterilize quickly. However, it is disadvantageous in that it can be used only in a medical apparatus which has no side effects even when exposed to moisture and high temperature. Hydrogen peroxide, ozone, and a plasma generator are appropriately used in combination. For example, there are a method of supplying hydrogen peroxide to the sterilization chamber and generating sterilization by generating plasma in the sterilization chamber, a method of simultaneously supplying plasma and sterilant to the sterilization chamber, a method of generating plasma in a state where oxygen is supplied to the sterilization chamber A method in which sterilization is performed by converting into ozone, and a method in which hydrogen peroxide and ozone are supplied together to sterilize a subject to be sterilized in a sterilization chamber.

In other words, conventional sterilization apparatus using hydrogen peroxide and plasma, when sterilization is performed with hydrogen peroxide equipment, can not penetrate fine space because the size of fume molecular particle (15 micron) in conventional products is not enough, There is a problem in that it is often impossible to prevent the problem. As a result, the conventional sterilization apparatus has a disadvantage in that the sterilization efficiency is lowered because it is difficult to sterilize a minute space between the inside of the room and the equipment. In addition, the conventional single nozzle and bar electrode type atmospheric pressure plasma method has a problem in that the contact area between the water droplet and the plasma is narrow and the ionization efficiency and the amount of IHPA are increased. Korean Patent Registration No. 10-0782040 discloses a sterilization method using hydrogen peroxide and ozone and an apparatus according to the method, and Korean Utility Model Registration No. 20-0438487 of Korean Registered Patent Publication No. 10-0782040 has a plurality of sterilization chambers A sterilization apparatus is disclosed in the prior art document.

The present invention has been proposed in order to solve the above-mentioned problems of the previously proposed methods. In constituting the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol, by constituting the plasma electrode in the form of the surface electrode, Which is capable of increasing the ionization efficiency of hydrogen peroxide and the amount of IHPA by widening the contact area between the droplet mist sprayed on the surface electrode and the plasma electrode, and to provide an ionized hydrogen peroxide aerosol.

The present invention also provides a method of manufacturing a plasma display panel in which a plasma electrode is formed in the form of a surface electrode so that a flat plasma discharge can be generated to increase the ionization efficiency of hydrogen peroxide along with the fine particle size and the amount of IHPA, There is provided a cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol, which can further improve the original activity of the spatial infiltration and the mobility of the molecular structure so that microorganisms, bacteria and fungi that may be present can be effectively sterilized and removed It is another purpose.

According to an aspect of the present invention, there is provided a surface plasma apparatus for generating an ionized hydrogen peroxide aerosol,

A cotton plasma apparatus for producing an ionized hydrogen peroxide aerosol (IHPA)

A hydrogen peroxide solution storage and supply unit for storing and supplying the hydrogen peroxide solution;

An air supply unit provided with an air pump for introducing external air and supplying pressurized air;

A spray device for spraying the hydrogen peroxide solution in the form of mist through the spray nozzle by receiving the hydrogen peroxide solution and pressurized air from the hydrogen peroxide solution storage and supply part and the air supply part;

A plasma generator disposed in proximity to a spray nozzle of the sprayer unit and having a plasma electrode for generating a plasma discharge so that hydrogen peroxide sprayed in a mist form is dispersed in the form of ionized hydrogen peroxide aerosol (IHPA); And

And a plasma power supply unit for supplying power to the plasma electrode of the plasma generator so as to cause a plasma discharge in the plasma generator.

Preferably, the hydrogen peroxide solution storage /

The hydrogen peroxide solution used can be a low concentration of hydrogen peroxide of 0.5 to 7.5%, which is safe for general exposure.

More preferably,

The size of the hydrogen peroxide and the ion particles sprayed through the spray nozzle may be 0.3-3 micron.

Still more preferably, the plasma generating apparatus section includes:

A pair of surface electrodes facing the plasma electrode may be formed so that the droplet mist of the hydrogen peroxide solution sprayed from the spray nozzle and the plasma contact area are widened and a flat plasma discharge is generated.

According to the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol proposed in the present invention, in the construction of the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol, by constituting the plasma electrode in the form of the surface electrode, It is possible to increase the ionization efficiency of hydrogen peroxide and the amount of IHPA by widening the contact area between the spray droplet mist and the plasma electrode.

In addition, according to the present invention, by forming a plasma electrode in the form of a surface electrode so that a flat plasma discharge can be generated, the ionization efficiency of hydrogen peroxide and the amount of IHPA, which are increased together with the fine particle size, It is possible to further improve the original activity of the space penetration and the mobility of the molecular structure, which enable sterilization and removal of microorganisms, bacteria and fungi which may exist in the microorganism.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a functional block diagram of a configuration of a surface plasma apparatus for generating an ionized hydrogen peroxide aerosol according to one embodiment of the present invention.
2 is a view showing a configuration of a surface electrode type plasma electrode applied to a surface plasma apparatus for producing an ionized hydrogen peroxide aerosol according to an embodiment of the present invention.
Figure 3 illustrates a positive (+) pole droplet configuration comprising ionized reactive oxygen species dispersed through a cotton plasma apparatus to produce an ionized hydrogen peroxide aerosol according to one embodiment of the present invention.
4 is a view illustrating a configuration of a plasma electrode of a surface plasma apparatus for generating an ionized hydrogen peroxide aerosol according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order that those skilled in the art can easily carry out the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the drawings, like reference numerals are used throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise.

FIG. 1 is a functional block diagram illustrating a configuration of a surface plasma apparatus for generating an ionized hydrogen peroxide aerosol according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of an ionized hydrogen peroxide aerosol produced according to an embodiment of the present invention FIG. 3 is a cross-sectional view showing the structure of a surface electrode type plasma electrode applied to a surface plasma apparatus for ionized hydrogen peroxide aerosol according to an embodiment of the present invention. FIG. 4 is a view showing a water droplet configuration of a positive electrode including an active oxygen species, and FIG. 4 is a graph showing the structure of a plasma electrode of a surface plasma apparatus for producing an ionized hydrogen peroxide aerosol according to an embodiment of the present invention Fig. 1, a cotton plasma apparatus 100 for producing an ionized hydrogen peroxide aerosol according to an embodiment of the present invention includes a hydrogen peroxide solution storage and supply unit 110, an air supply unit 120, a spray device unit 130, a plasma generator unit 140, and a plasma power supply unit 150.

The hydrogen peroxide solution storage and supply unit 110 is a structure for storing and supplying the hydrogen peroxide solution. This hydrogen peroxide solution storage and supply unit 110 can be used in a laboratory, an excellent medicine manufacturing facility (GMP), an animal breeding facility, a biological safety level of a biological safety grade (BSL grade 3) Hydrogen peroxide solution is stored and supplied as a cleaning solution for sterilization of the production room. The hydrogen peroxide solution used is a low concentration hydrogen peroxide of 0.5 to 7.5%, which is safe for general exposure. Here, a low concentration of hydrogen peroxide (0.5 to 7.5%) is similar to that of a prescription-free drug in a pharmacy and is safe at normal exposures and has no health hazard at normal exposures. For reference, more than 8% of hydrogen peroxide is classified as dangerous.

The air supply unit 120 includes an air pump 121, and is configured to supply the pressurized air by introducing external air. The air supply unit 120 supplies the pressurized air to the spray unit 130 to be described later so that the hydrogen peroxide and the ion particle size sprayed through the spray nozzle 131 are sprayed with a finer particle size do.

The spray device unit 130 includes a spray nozzle 131. The spray device unit 130 receives the hydrogen peroxide solution and the pressurized air from the hydrogen peroxide solution storage and supply unit 110 and the air supply unit 120, Hydrogen peroxide solution. The sprayer unit 130 sprays the hydrogen peroxide solution through the spray nozzle 131 in the form of mist using the supplied hydrogen peroxide solution and the pressurized air and enlarges and contacts the entire surface electrode of the plasma electrode 141 . Here, the size of the hydrogen peroxide and ion particles sprayed through the spray nozzle 131 may be 0.3 to 3 microns. At this time, it is preferable that the spray nozzle 131 of the spray device unit 130 is formed in the shape of a linear nozzle corresponding to the plasma electrode 141 of the surface electrode type of the plasma generating device unit 140 to be described later, It is understood that various shapes including a single nozzle or a jet nozzle are applied.

The plasma generator 140 is installed in the vicinity of the spray nozzle 131 of the sprayer 130 so that the hydrogen peroxide sprayed in the mist form is dispersed in the form of ionized hydrogen peroxide aerosol (IHPA) And a plasma electrode 141 for generating a plasma discharge. The plasma generator 140 includes a pair of planes 141 facing the plasma electrode 141 so that the droplet mist of the hydrogen peroxide solution sprayed from the spray nozzle 131 and the plasma contact area are widened and a flat plasma discharge is generated. It can be configured in the form of an electrode. The plasma generator 140 generates a plasma discharge of 17,000 volts so that the hydrogen peroxide aerosol sprayed through the spray nozzle 131 of the sprayer unit 130 is ionized and hydrogen peroxide aerosol (IHPA) To be diffused. That is, the plasma generator 140 generates ionized hydrogen peroxide molecules through the plasma discharge generated in the plasma electrode 141 in the form of a surface electrode, generates a strong positive charge field in the form of a net, To the inside of the room. Thus, the ionized hydrogen peroxide aerosol (IHPA) is ionized to OH-, H +, O2-, to treat the sterilization in the room, and the un-ionized particles are decomposed or disappear into the air. The ion that is directly involved in sterilization in the hydrogen peroxide aerosol (IHPA) ionized through hydrogen peroxide is hydroxide ion (OH-, aka Hydroxyl Radical), and the active oxygen (O2-, Radical Oxygen) And the sterilizing treatment of the cell-forming material.

The plasma power supply unit 150 is configured to supply power to the plasma electrode 141 in the form of a surface electrode of the plasma generator unit 140 so as to cause a plasma discharge in the plasma generator unit 140.

2 shows a configuration of the surface electrode type of the plasma electrode 141 provided in the plasma generating device unit 140. In FIG. FIG. 3 shows a positive (+) pole configuration including ionized reactive oxygen species dispersed through the cotton plasma apparatus 100 of the present invention. 3, the internal hydrogen peroxide in the water that receives the plasma energy through the plasma electrode 141 in the form of the surface electrode of the plasma generator 140 is ionized into reactive oxygen species (ROS), and the water droplet itself Is positively charged. 4 (a) shows a pair of surface electrodes facing the plasma electrode 141, and FIG. 4 (b) shows a surface electrode type plasma electrode 141 of FIG. 4 (a) Which is a conventional bar electrode type configuration. That is, the conventional bar electrode type atmospheric pressure plasma method has a problem that the contact area between the water droplet and the plasma is narrow, thereby increasing the ionization efficiency and the amount of IHPA. On the other hand, according to the present invention, a flat plasma discharge is generated by forming the plasma electrode 141 in the form of a surface electrode, and the ionization efficiency and the amount of IHPA of the hydrogen peroxide can be increased by enlarging the water droplet mist and the plasma contact surface.

As described above, the surface plasma apparatus for generating the ionized hydrogen peroxide aerosol according to an embodiment of the present invention can improve the narrow contact area between the spray droplet and the plasma of the conventional bar electrode type atmospheric pressure plasma system A plasma electrode is formed in the form of a surface electrode to increase the efficiency of the plasma by increasing the contact area of the plasma and to generate a flat plasma discharge using the shape of the surface electrode of the plasma electrode and to generate hydrogen peroxide So that the ionization efficiency and the amount of IHPA can be increased.

The present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics and scope of the invention.

100: A cotton plasma apparatus according to an embodiment of the present invention
110: hydrogen peroxide solution storage supply part 120: air supply part
121: Air pump 130: Spraying unit
131: Spray nozzle 140: Plasma generator unit
141: Plasma electrode (surface electrode) 150: Plasma power supply

Claims (4)

A cotton plasma apparatus (100) for producing an ionized hydrogen peroxide aerosol (IHPA)
A hydrogen peroxide solution storage and supply unit 110 for storing and supplying the hydrogen peroxide solution;
An air supply unit 120 having an air pump 121 for supplying external air and supplying pressurized air;
The hydrogen peroxide solution is supplied from the hydrogen peroxide solution storage and supply unit 110 and the air supply unit 120 and sprayed with the hydrogen peroxide solution in the form of mist through the spray nozzle 131, A sprayer unit 130 for spraying the water;
A plasma electrode 141 is provided in proximity to the spray nozzle 131 of the spray device unit 130 and generates a plasma discharge so that hydrogen peroxide sprayed in a mist form is dispersed in the form of ionized hydrogen peroxide aerosol (IHPA) A plasma generator 140 for generating plasma; And
And a plasma power supply unit 150 for supplying power to the plasma electrode 141 of the plasma generator unit 140 to cause a plasma discharge in the plasma generator unit 140,
The plasma generator 140 includes:
A pair of surface electrodes facing the plasma electrode 141 are formed so as to increase the contact area of the droplet of the hydrogen peroxide solution sprayed from the spray nozzle 131 and the plasma contact area and to generate a flat plasma discharge,
The spray nozzle 131 of the spray device unit 130 is connected to the spray nozzle 130,
Characterized in that it is configured in the form of a linear nozzle corresponding to a plasma electrode (141) in the form of a face electrode of the plasma generating device part (140).
The method of claim 1, wherein the hydrogen peroxide solution storage and supply unit (110)
Characterized in that the hydrogen peroxide solution used is stored and supplied with a hydrogen peroxide solution with a low concentration of hydrogen peroxide of 0.5 to 7.5% which is also safe for normal exposure.
[3] The apparatus according to claim 1 or 2, wherein the atomizer unit (130)
Characterized in that the size of the hydrogen peroxide and ion particles sprayed through the spray nozzle (131) has a size of 0.3 to 3 microns.
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