KR200408280Y1 - Bio clean room bacillus sterilizing system using ion plasma unit - Google Patents

Abstract

The present invention relates to a bacterial sterilization system using an ion plasma, and more specifically, a bacterial sterilization system that protects a patient from suspended particulates and various bacteria in the air by installing a filter for purifying air over a wall of a hospital room. It is about.

Bacterial sterilization system using an ion plasma according to the present invention, separating the interior space, the partition wall formed in both the air inlet and the air outlet for entering and exiting the indoor air; A filter unit installed in one indoor space separated by the partition wall; It is formed over the ceiling and the floor of the other interior space separated by the partition wall, one end is in contact with the partition wall and the other end is extended to a predetermined position of the other interior space to block the air pollution of the room from outsiders Access membrane; And a blower formed inside the partition wall to cause circulation of air. Characterized in that it comprises a.

Aseptic room, Aseptic hospital room, Chemo room, Laminar flow, Plasma, Plasma filter

Description

BIO CLEAN ROOM BACILLUS STERILIZING SYSTEM USING ION PLASMA UNIT}

1 is a perspective view of a bacterial sterilization system using an ion plasma according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram for showing the circulation of air in a bacterial bactericidal system using the ion plasma shown in FIG. 1. FIG.

3 is a schematic view showing a filter unit employed in the bacterial bactericidal system using the ion plasma shown in FIG.

4 is a schematic view for explaining the operation of the high efficiency electrostatic filter shown in FIG.

Figure 5 is a schematic diagram for explaining the action of the bactericidal active material generating device shown in FIG.

<Description of the symbols for the main parts of the drawings>

100: filter part

110: pretreatment filter 120: high efficiency electrostatic filtration filter

121: plasma generating unit 122, 123, 142, 143: electrode

130: UV composite photocatalyst 131: ultraviolet light source

132 photocatalyst filter 140 sterilizing active material generator

141: Plasma generator for sterilization 150: Slim type high efficiency filter

190: power supply unit

200: partition 210: air intake

220: air outlet 300: access membrane

310: work glove 400: blower

500: doorway 600: bed

The present invention relates to a bacterial sterilization system using an ion plasma, and more specifically, a bacterial sterilization system that protects a patient from suspended particulates and various bacteria in the air by installing a filter for purifying air over a wall of a hospital room. It is about.

The filter installed in the conventional air purification and bactericidal system uses a method of filtration using a HEPA (High Efficiency Particulate Air) filter or ULPA (Ultra Low Penetration Absolute) filter to remove general dust in the air. Irradiation is intended to sterilize the microorganisms caught in the filter. In some cases, microorganisms are sterilized using chemical agents.

However, the filter installed in the conventional air purification and bacterial sterilization system as described above has to replace the filter periodically because of the high filtration load, and there is a risk due to the outflow of microorganisms that may occur when the filter is replaced. In addition, changing the filter periodically in a room where it must be kept clean always requires cumbersome processes such as patient movement. In addition, the filter as described above has a disadvantage that can not completely remove the suspended particles.

On the other hand, the patient who is contacted for treatment may be the biggest cause of infecting the bacteria, so countermeasures are required.

The present invention has been devised in view of the above-mentioned problems, and reduces the filtration load applied to the filter of the bactericidal system used in a hospital room, which should always be kept clean, so that it can be used semi-permanently without replacing the filter. It is an object of the present invention to provide a bacterial bactericidal system that completely removes bacteria using low temperature plasma.

Another object is to block the bacterial infection of the patient by the medical staff by contacting the patient through the access membrane downstream of the indoor air flow, ie the circulatory airflow.

Bacterial sterilization system using an ion plasma according to a preferred embodiment of the present invention for achieving the above object, separating the interior space, the partition wall is formed in both the air inlet and the air outlet for entering and exiting the indoor air; A filter unit installed in one indoor space separated by the partition wall; It is formed over the ceiling and the floor of the other interior space separated by the partition wall, one end is in contact with the partition wall and the other end is extended to a predetermined position of the other interior space to block the air pollution of the room from outsiders Access membrane; And a blower formed inside the partition wall to cause circulation of air. It includes.

In addition, in order to achieve the above object, the filter unit is formed on the air inlet side formed in the partition wall pre-filter for filtering air; A high efficiency electrostatic filtration filter installed at the next stage of the pretreatment filter to remove suspended fine particles contained in the circulating air by charging and diffusion due to low temperature plasma; A UV composite photocatalyst unit installed at a next stage of the high efficiency electrostatic filtration filter and including an ultraviolet light source for irradiating ultraviolet rays and a photocatalyst filter for removing harmful gases and suspended particulates by irradiating ultraviolet rays from the ultraviolet light source; A sterilizing active material generating device installed at a next stage of the UV composite photocatalyst and deactivating suspended particulates by using a sterilizing active material generated by discharge of low temperature plasma; And a slim type high efficiency filtration filter installed at the next stage of the sterilizing active material generating device to filter suspended fine particles.

The pretreatment filter is preferably used any one of antibacterial plastic, catechin, chitosan and nanometal having antibacterial properties.

The high efficiency electrostatic filtration filter includes at least one electrostatic plasma generating unit including a pair of electrodes spaced apart from each other, and at least one of the pair of electrodes spaced apart from the electrostatic plasma generating unit may be a mesh or a porous plate. It is preferable to use the formed porous conductor. In addition, at least one of the electrodes may be coated with a dielectric. In addition, the power applied to the electrode may be any one of a variable DC power supply, a DC pulsed power supply, or an AC power supply connected to a function generator. In addition, the electrode uses any one of copper, iron, silver, gold, aluminum, and tungsten.

As the photocatalyst filter of the UV composite photocatalyst unit, at least one selected from a metal, a metal oxide, a semiconductor, a semiconductor oxide, activated carbon, zeolite, silica gel and a ceramic is preferably used as a catalyst carrier. The photocatalyst filter is characterized in that the carrier surface of the photocatalyst is selected and coated with any one of metal, metal oxide, semiconductor, semiconductor oxide, activated carbon, zeolite, silica gel and ceramic catalyst. In addition, the ultraviolet (UV) irradiated from the ultraviolet light source of the UV composite photocatalyst portion is preferably a UV-A type of 300nm to 400nm wavelength range. The ultraviolet light source may be any one of a UV light-emitting display (LED), a cold cathode lamp, and a heat tube type UV lamp.

The sterilizing active material generating apparatus includes at least one sterilizing plasma generating unit including a pair of electrodes spaced apart from each other, and at least one of the pair of electrodes spaced apart from the sterilizing plasma generating unit is a pin. It is preferable that the conductor has a shape selected from one of a plate, a wire, a cylinder, and a mesh plate. In addition, at least one of the electrodes may be coated with a dielectric. In addition, the power applied to the electrode may be any one of a variable DC power supply, a DC pulsed power supply, or an AC power supply connected to a function generator. In addition, the electrode uses any one of copper, iron, silver, gold, aluminum, and tungsten.

The slim high efficiency filtration filter preferably uses any one of HEPA, ULPA, and e-HEPA in which the filtration medium is electrostatic.

According to another object of the present invention, it is preferable that the work glove is formed in the access membrane in order to block the indoor air pollution inside the access membrane by the external air during the treatment of the external medical staff or workers.

In addition, the circulation air flow circulating through the room, the clean air is discharged through the air outlet, the U-turn based on the access membrane is characterized in that it is repeated to be introduced again into the filter unit through the air inlet and filtered again.

Hereinafter will be described with reference to the preferred embodiment to understand in more detail with respect to the present invention described above.

1 is a perspective view of a bacterial sterilization system using an ion plasma according to a preferred embodiment of the present invention, Figure 2 is a schematic diagram for showing the circulation of air in the bacterial sterilization system using an ion plasma shown in FIG.

As shown in Figures 1 to 2, the bactericidal system using the ion plasma according to a preferred embodiment of the present invention is a filter unit 100, partition 200, access membrane 300 and a blower for circulating air ( 400).

The filter unit 100 is formed in one space of the partition wall 200 separating the indoor space.

The partition 200 has an air inlet 210 for inflow of indoor air to one side thereof, and an air outlet 220 for discharging clean air filtered through the filter unit 100 to the other side thereof. have. In order to circulate indoor air, a blower 400 should be installed, and in the bactericidal system using ion plasma according to a preferred embodiment of the present invention, the noise, air flow, and air filtration are shown in FIG. As described above, the air filter 210 is installed near the filter part 100 side of the air inlet 210, which is covered by the partition wall 200, but the position of the blower 400 is not limited to the position shown in the drawing.

As shown in FIG. 2, the air in the room is introduced into the filter unit 100 through the air suction port 210 formed in the partition 200, and the clean air filtered through the filter unit 100 is Through the air outlet 220 formed in the partition wall 200 to go back to the room, the indoor air is always maintained in a clean state as described above. In addition, the patient is positioned upstream of the indoor air flow, that is, the circulation airflow, and the doorway 500 is opened downstream of the circulation airflow. As shown in Figures 1 to 2, in the preferred embodiment of the present invention was installed an access membrane 300 for distinguishing the upstream and downstream of the circulation airflow. Since the medical staff contacted for treatment may be the biggest cause of infecting bacteria in patients with weak immunity, an access membrane 300 as shown in the drawing is provided. The access film 300 is formed over the ceiling and the bottom and one end is in contact with the partition wall 200, the other end is a predetermined distance from the interior wall facing the partition wall 200 to form a passage for the U-turn of the circulation airflow Leave away. Of course, the access membrane 300 should be formed longer than the length of the bed 600 of the patient to at least embrace the bed 600 in which the patient is lying. In addition, it is preferable that the work glove 310 is formed in the access membrane 300 for the treatment of a medical staff. Therefore, even if the medical staff brings the external air infected with the bacteria, the patient can treat the patient through the work glove 310 formed in the access membrane 300 downstream of the circulation airflow, thereby protecting the patient from the bacterial infection caused by external factors. It can be. The access layer 300 is preferably made of a transparent material that does not obstruct the view as much as possible.

3 is a schematic view showing the filter unit 100 employed in the bacterial bactericidal system using an ion plasma according to a preferred embodiment of the present invention.

The filter unit 100 is a pretreatment filter 110, high efficiency electrostatic filtration filter 120, UV composite photocatalyst unit 130, antiseptic active material generator 140 and slim type high efficiency to remove the perfect bacteria and suspended particulates It is formed to include a filtration filter 150, the indoor air introduced through the air suction port 210 is filtered while passing through the devices sequentially from the pre-treatment filter (110).

The pretreatment filter 110 removes some of the large particles and harmful gas of several micrometers (㎛) or more. As the pretreatment filter 110, it is preferable to use a material having antimicrobial properties such as antibacterial plastic, catechin, chitosan and nano metal.

The high efficiency electrostatic filtration filter 120 includes at least one electrostatic plasma generator 121 for generating low temperature plasma. In the electrostatic plasma generator 121, a pair of electrodes 122 and 123 are disposed to be spaced apart from each other. The electrodes 122 and 123 may be made of copper (Cu), iron (Fe), silver (Ag), gold (Au), aluminum (Al), tungsten (W), or the like. One selected electrode or both electrodes of the pair of electrodes 122 and 123 use a porous conductor formed of a mesh or a porous plate. In addition, one or a selected electrode of the pair of electrodes 122 and 123 may be coated with a dielectric. Such dielectrics may be ceramic, plastic, glass, mica, oil, and the like.

4 is a view for explaining the operation of the high efficiency electrostatic filtration filter 120. As shown in FIG. 4, when the AC power connected to the variable DC type power supply, the DC pulse type power supply, or the function generator of positive or negative charge is supplied from the power supply unit 190 to the discharge electrode 122, the two electrodes 122 and 123 are connected to each other. Low temperature plasma is generated. At this time, while the circulation airflow passing through the pretreatment filter 110 passes through the low-temperature plasma electric field region formed between the two electrodes 122 and 123 spaced at a predetermined interval, particles of about 0.5 μm or more of the suspended particulates are electrically charged and then electrostatically discharged by the electric field. It is attached to the electrode by miracle attraction and removed, and particles of about 0.5 μm or less are attached to the electrode formed of mesh or porous plate by diffusion phenomenon by Brownian movement with electrostatic attraction that is slightly weaker than the particles of larger size. As described above, the high efficiency electrostatic filtration filter 120 removes microscopic suspended fine particles having a size of several micrometers due to electrostatic attraction and diffusion due to charging, thereby minimizing particulate load in the slim type high efficiency filtration filter 150 described later. This makes it possible to slim the slim high efficiency filter 150 and increase its performance and lifespan.

The UV composite photocatalyst unit 130 removes harmful gases in the circulation air stream, and the sterilization active material remaining in the circulation air stream so that the sterilization active material generated in the sterilization active material generator 140 described later does not enter the indoor space. In particular, it decomposes ozone and the like, and sterilizes the suspended particulates including microorganisms suspended in the circulation air stream in the process of decomposing and suspended or attached to the photocatalyst filter 132. UV (Ultraviolet) does not remove harmful gases, ozone and suspended particulates by irradiation alone, but activates the photocatalyst of the photocatalyst filter 132 configured together to accelerate the removal of harmful gases and suspended particulates. In addition, it is possible to reduce the deterioration rate of the catalyst as compared to when the catalyst alone, to maximize the operating life. The photocatalyst filter 132 may be used as a catalyst carrier by selecting one or more of metal, metal oxide, semiconductor, semiconductor oxide, activated carbon, zeolite, silica gel and ceramic. In addition, the photocatalyst filter 132 may be used by coating the surface of the carrier among metal, metal oxide, semiconductor, semiconductor oxide, activated carbon, zeolite, silica gel and ceramic catalyst. Ultraviolet (UV) radiation to the photocatalyst is preferably UV-A type of 300nm to 400nm wavelength range. In addition, the ultraviolet light source 131 irradiating UV to the photocatalyst may use one of a UV light-emitting display (LED), a cold cathode lamp, and a heat tube type UV lamp. The UV light source method has a lifespan of up to 10 times longer than conventional lamps and no by-products, and may have safety against UV leakage to the outside. In particular, among the catalytic materials of the photocatalyst filter, TiO2 (titanium dioxide) is particularly active by the UV-A region, and most of the catalysts have a small amount of degassing performance due to UV irradiation.

The sterilizing active material generator 140 includes at least one sterilizing plasma generating unit 141 for generating a low temperature plasma. A pair of electrodes 142 and 143 are disposed in the sterilizing plasma generator 141 to be spaced apart from each other. As the electrodes 142 and 143, copper (Cu), iron (Fe), silver (Ag), gold (Au), aluminum (Al), tungsten (W), and the like may be used. At least one of the pair of electrodes 142 and 143 facing each other is a conductor having a shape selected from a pin, a plate, a wire, a cylinder, and a mesh plate. desirable. Thus, various electrode configurations such as wire-plate, wire-cylinder, pin-plate, plate-plate, pin-pin and wire-wire are possible. In addition, one or a selected electrode of the pair of electrodes 142 and 143 may be coated with a dielectric. Such dielectrics may be ceramic, plastic, glass, mica, oil, and the like.

5 is a view for explaining the action of the bactericidal active material generating device 140. As shown in FIG. 5, when a variable DC type power supply, a negative pulse charge DC power supply, or an AC power source connected to a function generator is supplied from the power supply unit 190 to the discharge electrode 142, sterilization activity such as ozone, various ions and radicals, etc. Substance occurs. The generated bactericidal active material passes through the slim high efficiency filtration filter 150 at the rear of the filter part and permanently deactivates the suspended particles trapped in the filter media. Deactivate with In addition, permanently deactivated suspended particulates attached to the various devices or suspended in the circulation air flow, and permanently deactivated suspended particulates attached to the pre-treatment filter 110, and finally the residual amount disappeared from the UV composite photocatalyst 130 While the sterilization of the unpasteurized floating or adherent bacteria is made.

The slim type high efficiency filtration filter 150 is reduced to less than half the thickness of the conventional high efficiency filtration filter, the pressure drop of the airflow is reduced when the airflow passes, thus minimizing the power and noise of the blower 400, etc. have. The slimming of the high efficiency filtration filter can be achieved by a complementary hybrid system configuration that removes most of the suspended particulates removed by the existing filter alone in the high efficiency electrostatic filtration filter 120 at the front end. As the slim high efficiency filtration filter 150, any one of HEPA, ULPA, and e-HEPA having a static filtration medium may be used.

As described above, the indoor air introduced through the air suction port 210 is the pretreatment filter 110, the high efficiency electrostatic filtration filter 120, UV composite photocatalyst 130, the sterilizing active material generating device 140 and slim type high efficiency. Through the filter unit 100 including the filtration filter 150, it is possible to filter the perfect air, the outside of the circulating air through the work glove 310 of the access membrane 300 by the medical staff to treat the outside air It can protect a patient from bacterial infection by.

While the present invention has been illustrated and described in connection with a preferred embodiment for illustrating the principles of the present invention, the present invention is not limited to the configuration and operation as shown and described. Those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the utility model registration claims.

As described above, according to the present invention, since the high efficiency electrostatic filter and the slim type high efficiency filtration filter are integrated and used to purify the suspended particulates in the circulating air stream, the pressure loss, the noise and the maintenance power ratio can be minimized, and at the same time have a semi-permanent life. Eliminates the hassle of replacing filters in sterile hospitals and chemotherapy rooms that must always be kept clean.

In addition, it complements the shortcomings of the catalytic gas purification technology, which has a problem in the processing speed for the purification of gaseous harmful substances in the circulating air stream, and the physical and chemical gas adsorption filter technology, which has problems in the lifetime thereof. By applying the UV compound catalyst gas purification technology that is utilized, it has high efficiency purification ability and semi-permanent life corresponding to the airflow speed, and it can minimize the generation of unwanted by-products.

In addition, by separating the interior space by the access membrane, the patient is located upstream of the circulating air formed by the air sterilized by the filter, and the space where the medical staff stays and the entrance is located downstream of the circulating air, thereby Because air flows into the patient only through the filter because of the circulation direction of the air flow, there is an effect of protecting the patient with weak immunity from bacterial infection caused by the outside air.

Claims (21)

A partition wall separating the indoor space and having air inlets and air outlets for entering and exiting indoor air; A filter unit installed in one indoor space separated by the partition wall; It is formed over the ceiling and the floor of the other interior space separated by the partition wall, one end is in contact with the partition wall and the other end is extended to a predetermined position of the other interior space to block the air pollution of the room from outsiders Access membrane; And A blower formed inside the partition wall to cause circulation of air; Bacterial sterilization system of a bio clean room using an ion plasma comprising a. The method of claim 1, wherein the filter unit A pretreatment filter formed at an air inlet side formed in the partition wall to filter air; A high efficiency electrostatic filtration filter installed at the next stage of the pretreatment filter to remove suspended fine particles contained in the circulating air by charging and diffusion due to low temperature plasma; A UV composite photocatalyst unit installed at a next stage of the high efficiency electrostatic filtration filter and including an ultraviolet light source for irradiating ultraviolet rays and a photocatalyst filter for removing harmful gases and suspended particulates by irradiating ultraviolet rays from the ultraviolet light source; A sterilizing active material generating device installed at a next stage of the UV composite photocatalyst and deactivating suspended particulates by using a sterilizing active material generated by discharge of low temperature plasma; And It is installed in the next stage of the sterilization active material generating device, a slim type high efficiency filtration filter for filtering the suspended particulates; bacterium bactericidal system of a bio clean room using an ion plasma, characterized in that it comprises a. The method of claim 2, wherein the pretreatment filter Bacterial sterilization system of a bio clean room using an ion plasma, characterized in that any one of antibacterial plastic, catechin, chitosan and nanometal having antimicrobial properties. The method of claim 2, wherein the high efficiency electrostatic filtration filter At least one electrostatic plasma generating unit comprising a pair of electrodes spaced apart from each other, characterized in that the bacterial clean system of the bio-clean room using an ion plasma. The method of claim 4, wherein At least one of the pair of electrodes spaced apart from the electrostatic plasma generating unit using a porous conductor formed of a mesh or a porous plate bacterial sterilization system of a bio-clean room using an ion plasma. The method of claim 4, wherein At least one of the pair of electrodes spaced apart from the electrostatic plasma generator is coated with a dielectric, characterized in that the bacterial clean system of the bio-clean room using the ion plasma. The method of claim 4, wherein The power applied to the electrode disposed in the electrostatic plasma generator is any one of a variable DC power source, a DC pulse type power source or an AC power source connected to a function generator, bacterial sterilization in a bio clean room using an ion plasma. system. The method of claim 4, wherein The electrode disposed in the electrostatic plasma generating unit is a bacterial sterilization system of a bio clean room using an ion plasma, characterized in that any one of copper, iron, silver, gold, aluminum, tungsten. The method of claim 2, The photocatalyst filter of the UV composite photocatalyst unit is selected from the group consisting of metals, metal oxides, semiconductors, semiconductor oxides, activated carbon, zeolites, silica gels, and ceramics, which are used as catalyst carriers. Sterilization system. The method of claim 2, The photocatalyst filter of the UV composite photocatalyst unit may be selected from a metal, a metal oxide, a semiconductor, a semiconductor oxide, an activated carbon, a zeolite, a silica gel, and a ceramic catalyst to coat the carrier surface of the photocatalyst. Room bactericidal system. The method of claim 2, Ultraviolet light (UV) irradiated from the ultraviolet light source of the UV composite photocatalyst unit is UV-A type bacterium bactericidal system using an ion plasma, characterized in that the wavelength range of 300nm to 400nm. The method of claim 11, The ultraviolet light source of the UV composite photocatalyst unit is a bacterial sterilization system of a bio clean room using ion plasma, characterized in that any one of a UV LED (Light-Emitting Display), a cold cathode lamp and a heat tube type UV lamp. The method of claim 2, The ultraviolet light source of the UV composite photocatalyst unit is a bacterial sterilization system of a bio clean room using ion plasma, characterized in that any one of a UV LED (Light-Emitting Display), a cold cathode lamp and a heat tube type UV lamp. According to claim 2, wherein the bactericidal active material generating device Bacterial sterilization system of a bio clean room using an ion plasma, characterized in that it comprises at least one sterilizing plasma generating unit comprising a pair of electrodes spaced apart. The method of claim 14, At least one of the pair of electrodes spaced apart from the sterilizing plasma generator may have a shape selected from a pin, a plate, a wire, a cylinder, and a mesh plate. Bacterial sterilization system of a bio clean room using ion plasma characterized by having a conductor. The method of claim 14, At least one of the pair of electrodes spaced apart from the sterilizing plasma generating unit is a bacterial sterilization system of a bio clean room using an ion plasma, characterized in that the coating with a dielectric. The method of claim 14, The power applied to the electrode disposed in the plasma generator for sterilization is any one of a variable DC power supply, a DC pulse type power supply or an AC power source connected to a function generator, and bacterial sterilization in a bio clean room using an ion plasma. system. The method of claim 14, Electrode disposed in the sterilization plasma generating unit is a bacterial sterilization system of a bio clean room using an ion plasma, characterized in that using any one of copper, iron, silver, gold, aluminum, tungsten. The method of claim 2, wherein the slim high efficiency filtration filter A bacterial cleansing system in a bio clean room using ion plasma, wherein the HEPA, ULPA, and filtration media use any one of electrostatic e-HEPA. The method of claim 1, wherein the access membrane is Bacterial sterilization system of a bio clean room using an ion plasma, characterized in that the work gloves are formed in order to block the indoor air pollution inside the access membrane by the outside air when the external medical staff or the worker, such as treatment. The method according to any one of claims 1 to 20, The circulating air circulating in the room discharges clean air through the air discharge port, and U-turns on the basis of the access membrane to be introduced into the filter unit through the air inlet and filtered again. Bacterial sterilization system in bio cleanroom.

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