KR102477127B1 - Bio aerosol removal system using electron beam - Google Patents

Abstract

The present invention relates to a bio-aerosol removal technology, and more particularly, to a bio-aerosol removal system using an electron beam. To this end, a sterilization chamber 206 in which air is introduced into one side and discharged into the other side; A first slot 120 and a second slot 130 formed on the end surface of the sterilization chamber 206; a first filter 201 inserted into the first slot 120 to remove bio-aerosol from the air and detachable from the first slot 120; a second filter 203 inserted into the second slot 130 to remove bio-aerosol from the air and detachable from the second slot 130; replacement means for inserting the first filter (201) and removing the second filter (203) or removing the first filter (201) and inserting the second filter (203); and an electron beam accelerator 207 radiating electron beams to the detached first filter 201 or second filter 203.

Description

Bio aerosol removal system using electron beam}

The present invention relates to a bio-aerosol removal technology, and more particularly, to a bio-aerosol removal system using an electron beam.

Bio-aerosol is a biogenic particle with a size of 0.02 ~ 100 μm and includes various forms such as fungal spores, microbial toxins, pollen, coughs and body fluids generated from the human body, in addition to microorganisms such as viruses, bacteria and fungi. Bioaerosols are abundant in nature and exist in indoor and outdoor environments. Bio-aerosols such as foot-and-mouth disease virus, SARS coronavirus, swine flu virus, tuberculosis bacillus, and coronavirus (COVID)-19 are known to cause various diseases. Diseases caused by such bio-aerosols are not only directly transmitted by bodily fluids, but also spread by moving bodily fluids into the air.

In order to remove these bio-aerosols, a depth filter was used. However, since the inner filtration filter had to be replaced with a new one after a certain period of time, the economic burden was great, and the disposal cost and procedure were complicated because it was classified as medical waste.

In addition, there is also a technique of directly irradiating electron beams to the air to remove bio-aerosols, but particulate matter is not sufficiently removed, and ozone is generated during the electron beam irradiation process, resulting in secondary environmental pollution.

1. Republic of Korea Patent Application No. 10-2013-0062230 (odor-causing substances and bio-aerosol removal device), 2. Korean Patent Application No. 10-2006-0004730 (fine aerosol removal system using high pressure injection), 3. Republic of Korea Patent Application No. 10-2020-7006734 (Aerosol droplet removal method),

Therefore, the present invention has been made to solve the above problems, and the first object of the present invention is to remove bio-aerosols using electron beams that can collect and remove bio-aerosols in the air, regenerate them with electron beams, and use filters repeatedly. to provide the system.

A second object of the present invention is to provide a bio-aerosol removal system using an electron beam that can sterilize by supplying ozone generated during electron beam generation to inhaled air and completely remove ozone when discharged.

However, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clear to those skilled in the art from the description below. You will be able to understand.

In order to achieve the above technical problem, a sterilization chamber 206 in which air is introduced into one side and discharged into the other side; A first slot 120 and a second slot 130 formed on the end surface of the sterilization chamber 206; a first filter 201 inserted into the first slot 120 to remove bio-aerosol from the air and detachable from the first slot 120; a second filter 203 inserted into the second slot 130 to remove bio-aerosol from the air and detachable from the second slot 130; Insert the first filter 201 into the first slot 120 and leave the second filter 203 in the second slot 130 or leave the first filter 201 in the first slot 120 replacement means for inserting the second filter 203 into the second slot 130; and an electron beam accelerator 207 provided on one side of the sterilization chamber 206 and radiating electron beams to the separated first filter 201 or second filter 203; An aerosol removal system is provided.

In addition, a ventilation fan 216 may be further provided on one side or the other side of the sterilization chamber 206 .

In addition, an electron beam processing chamber 205 accommodating the electron beam accelerator 207 may be further included.

In addition, an ozone intake fan 208 provided on one side of the electron beam processing chamber 205 to suck in ozone generated by the electron beam accelerator 207 and spray ozone to one side of the sterilization chamber 206 may be further included.

In addition, the other side of the sterilization chamber 206 is further installed a spraying means for spraying a liquid to remove ozone.

Also, the liquid may include at least one of NaCl, NaClO, KI, CaCl ₂ , and NaClO ₄ .

In addition, the injection unit may further include a recovery tank 211 for recovering the injected liquid.

In addition, the injection means, the storage tank 213 for storing the liquid; a pump 212 supplying liquid from the storage tank 213; And a nozzle 209 connected to the pump 212 and provided in the sterilization chamber 206; may include.

In addition, the replacement means includes guides installed at both ends of the first filter 201 and the second filter 203, respectively; a first movable rail 202 having one end extending to the sterilization chamber 206 and the other end extending to the electron beam accelerator 207 to move the guide of the first filter 201; a first moving rail driver 240 for moving the guide of the first filter 201; a second movable rail 204 having one end extending to the sterilization chamber 206 and the other end extending to the electron beam accelerator 207 to allow movement of the guide of the second filter 203; and a second moving rail driver 242 for moving the guide of the second filter 201.

In addition, a virus sensor 215 for detecting the amount of virus in the air may be further provided on one side of the sterilization chamber 206 .

In addition, the replacement means replaces the first filter 201 and the second filter 203 at regular intervals or based on the detection signal of the virus sensor 215 .

Another object of the present invention as described above is a step in which the ventilation fan 216 operates to suck air into one side of the sterilization chamber 206 (S100); The ozone intake fan 208 supplying ozone to the air to sterilize it (S110); The bio-aerosol of the air is collected by the first filter 201 or the second filter 203 placed at the filter position by the replacement means, and the second filter 203 or the first filter placed at the regeneration position by the replacement means ( 201) is reproduced by the electron beam accelerator 207 (S120); removing ozone by spraying a liquid into the air by the spraying unit (S130); It can also be achieved by a bio-aerosol removal method using an electron beam, comprising the step of discharging air (S140).

In addition, a step of replacing the first filter 201 and the second filter 203 by the replacement means at regular intervals or based on the detection signal of the virus sensor 215 (S135); may be further performed.

In addition, in the regeneration step (S120), a step (S125) of supplying ozone generated from the electron beam accelerator 207 to the sterilization step (S110) may be further performed.

According to one embodiment of the present invention, it is possible to repeatedly use the filter by collecting and removing bio-aerosols in the air and reproducing them with electron beams. Thus, repeated use of the filter and a guarantee of constant filter performance are achieved.

In addition, ozone generated during the generation of the electron beam is supplied to the inhaled air for sterilization, and ozone can be completely removed when discharged. Accordingly, it is possible to more effectively remove the bio-aerosol and prevent secondary environmental pollution due to ozone in advance. That is, there is an advantage in that it is possible to inactivate biohazardous factors and at the same time partially sterilize it, thereby supplying safe air to indoor residents.

However, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical idea of the present invention, the present invention is the details described in such drawings should not be construed as limited to
1A is a schematic configuration diagram of a bio-aerosol removal system using an electron beam according to an embodiment of the present invention, wherein a first filter 201 is in a filter position and a second filter 203 is in a regeneration position. ,
1B is an enlarged view of the periphery of the first and second slots 120 and 130 in FIG. 1A;
FIG. 2A is an operation diagram showing a state in which the first filter 201 and the first and second guides 250 and 252 in FIG. 1A are moving from the filter position;
FIG. 2B is an operation diagram showing a state in which the first filter 201 and the first and second guides 250 and 252 move to a playback position after FIG. 2A;
FIG. 3 is a state in which the first filter 201 is in the regeneration position and the second filter 203 is in the filter position in FIG. 1A;
4 is a schematic block diagram of a system according to one embodiment of the present invention;
5 is a flowchart illustrating a bio-aerosol removal method using an electron beam according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

The meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element. It should be understood that when an element is referred to as “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to a described feature, number, step, operation, component, part, or It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

Example composition

Hereinafter, the configuration of a preferred embodiment will be described in detail with reference to the accompanying drawings.

Bio-aerosol is a biogenic particle with a size of 0.02 ~ 100 μm and includes various forms such as fungal spores, microbial toxins, pollen, coughs and body fluids generated from the human body, in addition to microorganisms such as viruses, bacteria and fungi. Bioaerosols are abundant in nature and exist in indoor and outdoor environments. Bio-aerosols such as foot-and-mouth disease virus, SARS coronavirus, new influenza virus, tuberculosis bacillus, and coronavirus (COVID-19) are known to cause various diseases. Diseases caused by such bio-aerosols are not only directly transmitted by bodily fluids, but also spread by moving bodily fluids into the air.

In addition, the electron beam 270 applies very high electric field energy generated by high voltage discharge to the polluted air to decompose pollutants including odor-causing substances in the air through electrochemical reactions such as dissociation, ionization, excitation, oxidation, and reduction. It is possible to remove bio-aerosol by highly reactive atoms or radicals such as OH-Radical and nascent oxygen generated in the process of electrochemical reaction.

1A is a schematic configuration diagram of a bio-aerosol removal system using an electron beam according to an embodiment of the present invention, wherein a first filter 201 is in a filter position and a second filter 203 is in a regeneration position. , FIG. 1B is an enlarged view around the first and second slots 120 and 130 in FIG. 1A. As shown in Figures 1a and 1b, one side of the sterilization chamber 206 is the suction pipe 100, the other side is the discharge pipe 110. The ventilation fan 216 is installed in the suction pipe 100, but may also be installed in the discharge pipe 110.

The virus sensor 215 is provided on one side of the suction pipe 100 and transmits the detection result to the control unit 217.

The inlet side of the ozone intake fan 208 is connected to the electron beam processing chamber 205, and the outlet side is connected to the suction pipe 100. The ozone intake fan 208 forcibly blows ozone generated in the electron beam processing chamber 205 to the suction pipe 100 .

The electron beam processing chamber 205 is provided on one side of the sterilization chamber 206, and an electron beam accelerator 207 capable of irradiating electron beams 270 is provided therein. The other ends of the first and second moving rails 202 and 204 extend into the electron beam processing chamber 205 .

The nozzle 209 is installed in the upper part of the sterilization chamber 206 near the discharge pipe 110 and is oriented to irradiate the NaCl aqueous solution 214 toward the lower part. A recovery tank 211 for recovering the NaCl aqueous solution 214 is provided at the corresponding lower part of the nozzle 209.

The NaCl aqueous solution storage tank 213 is provided separately, and the pump 212 is provided between the NaCl aqueous solution storage tank 213 and the nozzle 209.

The middle region of the sterilization chamber 206 is provided with a first slot 120 and a second slot 130. The first filter 201 may be inserted into or removed from the first slot 120 . The second filter 203 may be inserted into or removed from the second slot 130 . The first slot 120 and the second slot 130 are finished with elastic rubber or fabric, respectively, to prevent air leakage, and are narrow enough so that only the thickness of the first and second filters 201 and 203 can pass through. .

FIG. 2A is an operation diagram showing a state in which the first filter 201 and the first and second guides 250 and 252 in FIG. 1A are moving from the filter position, and FIG. 2B is a diagram showing the first filter 201 and It is an operation diagram showing a state in which the first and second guides 250 and 252 move to the reproduction position. As shown in Figures 2a and 2b, the first movement rail 202 is a "b" shaped bent form. The vertical part of the first movable rail 202 is disposed on the left and right sides of the first slot 120 of the sterilization chamber 206, and the horizontal part of the first movable rail 202 is disposed to be horizontal to the front part of the electron beam accelerator 207. do. First and second guides 250 and 252 are installed at both ends of the first filter 201 to keep the first filter 201 taut. The first and second guides 250 and 252 are movable on the first moving rail 202 . The first and second guides 250 and 252 are moved by the first moving rail driver 240 . The first moving rail driver 240 is an actuator capable of linear reciprocating motion, such as a motor, a lead screw, or a pneumatic cylinder.

The second movable rail 204, the second filter 203, and the second movable rail driver 242 are the aforementioned first movable rail 202, the first filter 201, and the first movable rail driver 240 and have the same configuration.

The replacement means includes first and second moving rail drivers 240 and 242 , first and second moving rails 202 and 204 , first and second guides 250 and 252 , and the like.

4 is a schematic block diagram of a system according to one embodiment of the present invention. As shown in FIG. 4 , the controller 217 controls the on/off or rotation speed of the ventilation fan 216 and the ozone intake fan 208 . The controller 217 may receive a signal detected by the virus sensor 215 . The control unit 217 is connected to the electron beam accelerator 207, the first and second moving rail driving units 240 and 242, and the pump 212, receives feedback from their states, and controls their operations. The controller 217 may be a microcomputer, a CPU, or the like.

Example movement

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings. 5 is a flowchart illustrating a bio-aerosol removal method using an electron beam according to an embodiment of the present invention. As shown in FIG. 5 , the first moving rail driver 240 operates and the first filter 201 is inserted into the first slot 120 . And, the second moving rail driving unit 242 operates, and the second filter 203 is placed in front of the electron beam accelerator 207.

Then, the ventilation fan 216 operates and air is sucked into the suction pipe 100 of the sterilization chamber 206. This air contains many bio-aerosols.

Then, the ozone intake fan 208 supplies ozone introduced from the electron beam processing chamber 205 to the air to sterilize it (S110).

Then, the first filter 201 collects the bio-aerosol from the flowing air. At this time, the electron beam accelerator 207 generates and irradiates the electron beam 270, so that the second filter 203 is regenerated and reformed by the electron beam 207 (S120). The electron beam 270 not only sterilizes the second filter 203, but also prevents clogging by properly maintaining the porosity between fiber fibers. In addition, ozone incidentally generated by the electron beam accelerator 207 emitting the electron beam 270 is not diffused and is accommodated in the electron beam processing chamber 205 and moved by the ozone intake fan 208 (S125).

Then, the pump 212 is operated to spray the NaCl aqueous solution 214 in the NaCl aqueous solution storage tank 213 from the nozzle 209 (S130). Ozone contained in the air is completely dissolved by the NaCl aqueous solution 214 injected in the form of a spray and collected in the recovery tank 211, and the discharged air is completely free of ozone. In order to check this, an ozone sensor may be placed inside the discharge pipe 110. The sprayed liquid may be water, but ozone can be removed more effectively if it is an aqueous solution containing at least one of NaCl, NaClO, KI, CaCl ₂ , and NaClO ₄ . In particular, in the case of the NaCl aqueous solution (214), it is possible to satisfy economic feasibility as well as the ozone removal effect.

The air from which ozone has been removed may be supplied to the room through the discharge pipe 110 (S140).

If a predetermined operating time elapses (eg, 1 to 6 hours) or a large number of viruses are detected in the detection signal of the virus sensor 215, the first filter 201 and the second filter 203 are replaced ( S135). That is, the first filter 210 is detached from the first slot 120 and moved to the front of the electron beam accelerator 207, and the sterilized and regenerated second filter 203 is inserted into the second slot 130 ( see Figure 3). As this process is regularly repeated, continuous use is possible without replacing or discarding the filter, bio-aerosol is removed, and clean air without ozone can be supplied to the room.

Detailed descriptions of the preferred embodiments of the present invention disclosed as described above are provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a manner of combining with each other. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that do not have an explicit citation relationship in the claims may be combined to form an embodiment or may be included as new claims by amendment after filing.

100: suction pipe,
110: discharge pipe,
120: first slot,
130: second slot,
201: first filter,
202: first moving rail,
203: second filter,
204: second moving rail,
205: electron beam processing room,
206: sterilization chamber,
207: electron beam accelerator,
208: ozone intake fan,
209: nozzle,
210: NaCl aqueous solution supply pipe,
211: recovery tank,
212: pump,
213: NaCl aqueous solution storage tank,
214: NaCl aqueous solution,
215: virus sensor,
216: ventilation fan,
217: control unit,
210: NaCl aqueous solution supply pipe,
240: first moving rail driving unit,
242: second moving rail driving unit,
250: first guide,
252: second guide,
270: electron beam.

Claims (14)

A sterilization chamber 206 into which air is introduced to one side and discharged to the other side;
A first slot 120 and a second slot 130 formed on the end surface of the sterilization chamber 206;
a first filter 201 inserted into the first slot 120 to remove bio aerosol from the air and detachable from the first slot 120;
a second filter 203 inserted into the second slot 130 to remove the bio-aerosol from the air and detachable from the second slot 130;
The first filter 201 is inserted into the first slot 120 and the second filter 203 of the second slot 130 is removed or the first filter of the first slot 120 is removed. replacement means for detaching from (201) and inserting the second filter (203) into the second slot (130); and
An electron beam accelerator 207 provided on one side of the sterilization chamber 206 and irradiating an electron beam to the first filter 201 or the second filter 203 that has been separated; bio-aerosol removal system. According to claim 1,
A bio-aerosol removal system using an electron beam, characterized in that a ventilation fan 216 is further provided on one side or the other side of the sterilization chamber 206. According to claim 1,
The bio-aerosol removal system using an electron beam, characterized in that it further comprises an electron beam processing chamber (205) accommodating the electron beam accelerator (207). According to claim 3,
Further comprising an ozone intake fan 208 provided at one side of the electron beam processing chamber 205 to suck in the ozone generated by the electron beam accelerator 207 and spray the ozone to one side of the sterilization chamber 206 A bio-aerosol removal system using electron beams. According to claim 4,
Bio-aerosol removal system using an electron beam, characterized in that a spraying means for spraying a liquid to remove the ozone is further installed on the other side of the sterilization chamber (206). According to claim 5,
The bio-aerosol removal system using electron beam, characterized in that the liquid is an aqueous solution containing at least one of NaCl, NaClO, KI, CaCl ₂ and NaClO ₄ . According to claim 5,
The injection means,
The bio-aerosol removal system using electron beam, characterized in that it further comprises a recovery tank (211) for recovering the sprayed liquid. According to claim 5,
The injection means,
a storage tank 213 for storing the liquid;
a pump 212 supplying the liquid from the storage tank 213; and
A bio-aerosol removal system using an electron beam, characterized in that it comprises a nozzle 209 connected to the pump 212 and provided in the sterilization chamber 206. According to claim 1,
The replacement means,
Guides installed at both ends of the first filter 201 and the second filter 203, respectively;
a first movable rail 202 having one end extending to the sterilization chamber 206 and the other end extending to the electron beam accelerator 207 to allow movement of the guide of the first filter 201;
a first moving rail driver 240 for moving the guide of the first filter 201;
a second movable rail 204 having one end extending to the sterilization chamber 206 and the other end extending to the electron beam accelerator 207 so that the guide of the second filter 203 is movable; and
A bio-aerosol removal system using an electron beam, characterized in that it comprises a; second moving rail driver 242 for moving the guide of the second filter 201. According to claim 1,
A bio-aerosol removal system using an electron beam, characterized in that a virus sensor 215 for detecting the amount of virus in the air is further provided at one side of the sterilization chamber 206. According to claim 10,
The replacement means replaces the first filter (201) and the second filter (203) at regular intervals or based on the detection signal of the virus sensor 215. Bio-aerosol removal system using electron beam. In the bio-aerosol removal method using the bio-aerosol removal system of any one of claims 1 to 11,
The ventilation fan 216 operates to suck air into one side of the sterilization chamber 206 (S100);
The ozone intake fan 208 supplying ozone to the air to sterilize it (S110);
The bio-aerosol of the air is collected by the first filter 201 or the second filter 203 placed in the filter position by the replacing means, and the second filter 203 placed in the regeneration position by the replacement means or the second filter 203 placed in the regeneration position by the replacement means. regenerating the first filter 201 by the electron beam accelerator 207 (S120);
removing the ozone by a spraying unit spraying a liquid into the air (S130); and
Discharging the air (S140); bio-aerosol removal method using electron beam characterized in that it comprises. According to claim 12,
A virus sensor 215 for detecting the amount of virus in the air is further provided on one side of the sterilization chamber 206,
The replacement means replaces the first filter 201 and the second filter 203 at regular intervals or based on the detection signal of the virus sensor 215 (S135); A bio-aerosol removal method using an electron beam. According to claim 12,
In the regeneration step (S120), a step (S125) of supplying the ozone generated from the electron beam accelerator (207) to the sterilization step (S110) is further performed.

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