KR102096093B1 - Air Purifying System Using Ozone and OH Radical - Google Patents

Abstract

The present invention relates to an air purification system using ozone and OH radicals, which comprises: a treatment space-forming structure which insulates, from the outside, the perimeter of a vent unit (220) discharging contaminated indoor air to the outdoor space, thereby providing a treatment space (100) for treating indoor air discharged through the vent unit (220); and an ozone generation device (300) which is installed inside the treatment space-forming structure and generates ozone, wherein the indoor air treated with ozone inside the treatment space (100) is discharged to the outside only in a restricted area of the treatment space-forming structure. In particular, the air purification system further comprises a liquid droplet spray unit (400) which sprays liquid droplets into the treatment space (100), wherein the liquid droplets sprayed into the treatment space (100) through the liquid droplet spray unit (400) may bind to the ozone generated by the ozone generation device (300) to form OH radicals.

Description

Air Purifying System Using Ozone and OH Radical}

The present invention relates to a system for purifying air discharged from a house, and more particularly, to an air purification system capable of deodorizing / sterilizing air discharged from the house using ozone and OH radicals (hydroxy radicals).

In the process of breeding a large number of livestock in a limited space of a barn, in the air in the barn, not only odor components and dust, but also the density of various bacteria and viruses increases. In order to maintain a proper breeding environment, ventilation of the house is paramount. However, if the air containing odor emitted from the house is discharged as it is, it directly affects the living environment of the residents living around the house, so if there is no proper means to solve the odor problem caused by the house, the house will I have no choice but to remain.

In order to reduce the odor in the house and obtain a sterilizing effect, a method of supplying ozone in the house has been proposed (Patent Document 3). There have been many research results regarding the sterilization and odor removal effect of ozone, and many products using it have been made. In particular, a method of removing contaminants such as odorous components or volatile organic compounds contained in the air by ozone generated by using a low temperature plasma reaction is currently applied to some houses. However, even though ozone has effects such as odor removal and sterilization, it is necessary to manage manpower and livestock in the house when using ozone because it is harmful to livestock and the human body.

Furthermore, a technique has been proposed in which ozone is dissolved in water stored in a water tank, and ozone-dissolved water (generally called 'ozone water') is sprayed into the house to remove odors (Patent Document 1). And 2). When ozone is dissolved in water, OH radicals are formed, which are very chemically active, and are known to cause chemical reactions with air, water, bacteria, viruses, fungi, and various harmful gas substances that generate odors. The rate of decomposition of ozone is greatly influenced by the pH because it has a self-decomposition property that can be decomposed by OH radicals. That is, ozone is maintained in a stable state in acid, but the decomposition rate becomes faster as it becomes alkaline. And ozone is decomposed by the initial formed OH radical starting hydroperoxy radical into an intermediate-producing material (HO ₂ ^-) generate OH radicals through the medium path, superoxide radical (O ₂ ^{- -),} ozonide radical (O ₃₎ Is done.

Since OH radicals also cannot fully guarantee safety, management of manpower and livestock in the house is essential when spraying in the house. Furthermore, the half-life of OH radicals in water is known to be around 20 minutes, and the proportion of OH radicals decomposed between the time of ozone dissolution and the actual spraying process is significant, and it is actually used for odor removal / sterilization. The amount of OH radicals to be made becomes significantly smaller than the amount of OH radicals produced by the dissolution of ozone.

Registered Patent Publication No. 10-0585960 (Publication date: 2006.06.07.) Registered Patent Publication No. 10-1546159 (Notice: 2015.08.20.) Registered Patent Publication No. 10-1888373 (Announcement date: August 14, 2018)

The present invention is to solve the above-mentioned problems of the prior art, and provides an air purification system capable of removing and sterilizing odor by simultaneously using ozone and ozone water (OH radicals) for air discharged from the house with relatively simple facilities. It is aimed at. Furthermore, another object is to solve the problem that many parts of OH radicals formed in water are decomposed before being actually used for sterilization and sterilization when dissolved by dissolving ozone into the water tank.

The present invention relates to an air purification system using ozone and OH radicals to solve the above-described technical problem, by blocking the outside of the exhaust unit 220 for discharging the contaminated indoor air to the outside, the exhaust unit ( A processing space forming structure providing a processing space 100 for processing the indoor air discharged through 220); And an ozone generator 300 that is installed in the treatment space forming structure to generate ozone, but indoor air that has been ozonized in the treatment space 100 is external to only a limited area of the treatment space forming structure. It is characterized by being discharged.

The present invention further includes a droplet injection unit 400 for spraying droplets into the processing space 100, the droplets injected into the processing space 100 through the droplet injection unit 400 is the ozone generating device ( 300) is characterized by forming OH radicals in combination with ozone generated.

Furthermore, the processing space forming structure is coupled to each other to form a frame 110 of the structure; And a porous film 500 closely adhered to the frame 110, wherein the porous film 500 has pores 510 through which air in the processing space 100 can go out of the processing space forming structure. Is formed. In addition, the area of the pores 510 is preferably 5 to 10% of the area of the porous film 500. More preferably, in order to reduce the manufacturing cost, the porous film 500 may be a shading net 500 'manufactured by weaving a plurality of film yarns by a plurality of weaving yarns.

In addition, the airflow generating means 410 for generating an upward airflow to increase the time for the droplets to float and stay and a UV generator for irradiating ultraviolet rays to the droplets may be further included.

And the porous film 500 is used by overlapping two or more sheets, characterized in that the two or more porous films 500 are spaced apart from each other.

Finally, in the processing space 100, a odor sensor 601 in the processing space and an ozone sensor 602 in the processing space are provided, and the odor sensor 601 in the processing space and the ozone sensor 602 in the processing space Based on the value measured by), it characterized in that to drive the ozone generator 300 and the droplet injection unit 400.

In the air purification system using ozone and OH radicals according to the present invention, it is possible to remove and sterilize the odor of air discharged from the house by simultaneously using ozone and OH radicals using a relatively simple facility. Furthermore, since it is used for sterilization and odor removal at the same time as the production of OH radicals, it is possible to minimize the amount of OH radicals that are decomposed without any action after production.

Figure 1 shows a prior art for removing odor in the house using ozone water.
Figure 2 shows an embodiment of the ozone generator.
3 and 4 show an air purification system using ozone and OH radicals according to a first embodiment of the present invention.
5 shows a conventional sunshade that can be used as a porous film.
6 shows a second embodiment of the present invention.
7 shows a third embodiment of the present invention.
8 shows an example of IOT technical application to the configuration of the present invention.
9 shows an example using two porous films.

Hereinafter, an overall configuration of an air purification system using ozone and OH radicals according to the present invention will be described with reference to the drawings. The specific structure or functional descriptions presented in the embodiments of the present invention are exemplified for the purpose of describing the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described herein, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The ozone generator shown in FIG. 2 is developed by the inventor of the present invention and has received a patent registration (Registration No. 10-1800230), and uses the air sucked through the suction port 111 to the ozone generating unit 130. By generating ozone by, it has a structure for discharging ozone to the outlet (112). Specifically, referring to the configuration of the ozone generating unit 130 through FIG. 2 (b), when the power supply port 131 supplies electric power to the electric conductors 134 and 135, between the ceramic tube 136 and the electric conductor 134 Plasma is generated, and the plasma generates ozone again. In the smoking booth according to the present invention, it is preferable to use the ozone generator of the type shown in FIG. 2, but it may also be possible to use various types of ozone generators conventionally presented.

Figure 3 shows a state in which the air purification system according to the present invention is installed in the house 210. An exhaust portion 220 is formed on a predetermined portion of the house 210, preferably a sidewall, and has a function of discharging the air inside the house 210 out of the house 210 by a fan or the like. Since the air discharged out of the house 210 generates a high level of odor, a method of installing the ozone generator 300 in the vicinity of the exhaust unit 220 has been attempted to lower the odor level of the discharged air. However, it is difficult to obtain a sufficient odor removal effect only by installing the ozone generator 300 in an open space.

In order to isolate the external space connected to the exhaust part 220 of the house 210 from the surroundings, a plurality of frames 110 are formed, and the porous film is covered in a manner that covers the upper frame 110 as shown in FIG. 4. The 500 is installed to form a treatment space forming structure. In the embodiments of FIGS. 3 and 4, the frame 110 and the porous film 500 are exemplified, but the specific shape of the treatment space forming structure is not limited, and the space around the exhaust unit 220 can be isolated from the outside. Any structure can be used.

Preferably, the porous film 500 preferably surrounds the exhaust 220 in all directions except the ground so that a predetermined space connected to the exhaust 220 of the house 210 can be isolated from the outside. Hereinafter, the space formed by the processing space by the porous film 500 will be referred to as the processing space 100.

The material of the porous film 500 is not particularly limited, but in itself, it is preferable to use a synthetic resin material such as vinyl that does not have gas permeability. The porous film 500 should have pores 510 through which air can pass, and the purified air through the pores 510 is discharged to the outside of the treatment space 100.

While the air inside the house 210 is discharged through the exhaust unit 200 by a device such as a fan, the pressure inside the processing space 100 maintains a somewhat higher state than the external pressure (approximately 1 atm). . Therefore, the air inside the processing space 100 is discharged to the outside through the pores 510. At this time, the amount of air discharged is determined by the size and density of the pores 510.

If the size and density of the pores 510 are greater than necessary, and the air inside the processing space 100 can be easily discharged to the outside, the air in a state in which malodor removal and sterilization is not sufficiently performed is discharged to the outside. . Conversely, if the size and density of the pores 510 is too small, the pressure inside the processing space 100 may be excessively high, so that the air inside the house 210 may not properly escape through the exhaust unit 220. Therefore, the sum of the areas of the pores 510 is preferably determined at 5 to 10% of the area of the porous film 500, and the shape of the pores 510 itself is not very important. Furthermore, as shown in FIG. 9, by forming the porous film 500 in two or more layers, the time for which air to be treated remains in the processing space 100 even when the porous film 500 is not manufactured in various pore sizes Can also be appropriately controlled. That is, when it is determined that the processing space 100 is formed by using the porous film 500 as one layer and the air in the processing space 100 is easily discharged to the outside and there is insufficient time for processing, the size of the pores is not changed. By using a plurality of porous films 500, a desired effect can also be obtained. In this case, if two or more sheets of porous film 500 are completely attached, it may be impossible for air in the processing space 100 to escape, so it is preferable that the two or more sheets of porous film 500 are spaced apart from each other.

In particular, in order to reduce the production cost, instead of separately manufacturing the porous film 500, it is also possible to use an awning net 500 ', which is used for the purpose of shading in the agricultural field, as shown in FIG. Shading net 500 'is generally manufactured from weaving of elongated film yarns 11a to 11e as weaving yarns (A1 to A7), and pores are formed by themselves. However, the area of the pores with respect to the area of the film may have a hardness that is not suitable for achieving the object of the present invention. In this case, the metaphor of the pores may be controlled by overlapping the shading net 500 '.

The air in the house 210 discharged to the processing space 100 through the exhaust unit 220 stays inside the processing space 100 for a predetermined time. The time remaining in the processing space 100 can be adjusted by the area and density of the pores 510, as described above. When the ozone generating device 300 is operated in this state, it is possible to secure a sufficient time for contaminants to react with ozone, and the ozone generating device immediately without the processing space 100 formed of the porous film 500 ( 300), it is possible to remove the odor much more effectively than when only the introduction. In particular, it has a very good effect to remove the odor of the yellow halide system.

Further, fine droplets can be sprayed in the treatment space 100 through the droplet injection unit 400, through which the odorous components having a hydrophilic polarity such as ammonia, amines, ketones, aldehydes, lower organic acids, and phenol can be easily removed. Can be removed. In addition, ozone generated in the ozone generator 300 may be dissolved in fine droplets, in which case OH radicals are formed. Water in which OH radicals are formed is often referred to as ozone water, and OH radicals have a much better oxidizing power than ozone, thereby maximizing odor removal and sterilization effects. The process of generating OH radicals has been briefly mentioned in the technical background which is the background of the invention, and since it is a generally well-known section, additional description will be omitted.

Compared to the case of using ozone water generated by dissolving ozone in water stored in a tank in the prior art, in the present invention, ozone and droplets meet to form OH radicals and react with odor substances and microorganisms in the treatment space 100 immediately. Therefore, the time between formation and use of OH radicals is significantly shorter than in the prior art. Considering that the decomposition of OH radicals in water takes place in a very short time, the technical advantage obtained by allowing the formation of OH radicals in the treatment space 100 as in the present invention will be apparent.

Furthermore, when the droplets injected into the processing space 100 by the droplet injection unit 400 sink to the floor, the odor removal effect is difficult to last for a long time. Therefore, as shown in the embodiment shown in FIG. 6, in order to make the droplets float in the air for a long time, the size of the droplets is made as small as possible, and at the same time, the processing space using the airflow generating means 410 such as a fan or a circulator ( It is preferable to generate an upward air flow within 100).

Furthermore, in order to increase the production rate of OH radicals when ozone and droplets meet, a UV generator 420 may be installed in the treatment space 100. In addition, in order to actively utilize the ultraviolet rays of sunlight, the porous film 500 may be formed of a transparent material having high UV transmittance. The installation of the UV generator 420 is not only helpful for the generation of OH radicals, but also can show the sterilizing effect by itself.

7 shows a configuration according to a third embodiment of the present invention. In the case of a large-scale livestock farmhouse, as shown in FIG. 7, a plurality of houses are arranged in a line, and an exhaust unit 220 is formed between the houses and the houses. In this case, the processing space forming structure can be produced by arranging the frame 110 to form the processing space 100 in the long space between the barn and the barn, and fixing and fixing the porous film 500 to the upper frame 110. You can.

8 shows a configuration according to a fourth embodiment of the present invention. The odor detection sensor 601 and the ozone detection sensor 602 are installed in the processing space 100, and the odor detection sensor 603 is also installed inside the house 210. The odor detection sensor 601 and the ozone detection sensor 602 are commercially available and generally used, so a description of the specific operation method will be omitted. The odor sensors 601 and 603 preferably use gas sensors capable of measuring concentrations of hydrogen sulfide, ammonia, and amines, which are the main causes of odors generated in livestock houses.

When the value measured by the odor detection sensor 603 installed in the house becomes higher than a preset value, the internal fan is operated to flow the air inside the house 210 into the processing space 100 through the exhaust unit 220. Is done. When the odor level measured by the odor detection sensor 601 installed in the processing space 100 exceeds a preset reference value, the control unit 700 starts the ozone generator 300 based on automatic or management operation. At the same time, the fine droplets are injected into the processing space 100 through the droplet injection unit 400. Even during this process, the odor detection sensor 601 installed in the processing space 100 continuously measures the degree of odor in the processing space 100, and when the degree of odor falls below a reference value, the ozone generator 300 and the droplet injection unit The operation of the 400 is stopped. Even after the operation of the ozone generator 300 and the droplet ejection unit 400 is stopped, the ozone detecting sensor 602 continuously measures the ozone concentration in the processing space 100 and notifies the manager, so that the worker can retain ozone. In the state, it is prevented from entering the processing space 100.

The measured values obtained by the various sensors 601,602,603 are used by the control unit 700 to operate the ozone generator 300 and the droplet injection unit 400, as well as 3G, 4G (LTE), 5G, WCDMA, etc. It may be transmitted to a terminal (PC, tablet, smart phone) of the manager through a communication means 800 such as a telecommunication network or a local area network such as Bluetooth or Wifi. In addition to the sensor values, information about the operating state of the ozone generator 300 and the droplet injection unit 400 can also be delivered to the terminal of the manager.

 In addition, the administrator can remotely operate the ozone generator 300 and the droplet injection unit 400 based on the information measured by these sensor values. As described above, a specific method related to remote control using the IOT technology can be implemented without difficulty by using a micro control unit, a Raspberry Pi, or an Arduino, so a detailed description thereof will be omitted.

.

100: processing space 110: frame
210: barn 220: exhaust
300: ozone generator 400: droplet injection unit
410: air flow generating means 420: UV generating unit
500: porous film 510: pores
601: treatment space odor sensor 602: treatment space ozone sensor
603: Stink sensor in the barn 700: Control
800: means of communication

Claims (8)

It relates to an air purification system using ozone and OH radicals,
A treatment space forming structure providing a treatment space 100 for purifying indoor air discharged through the exhaust portion 220 by blocking the surroundings of the exhaust portion 220 for discharging the contaminated indoor air to the outside from the outside. ;
An ozone generator 300 installed in the processing space forming structure to generate ozone; And
Including the droplet ejection unit 400 for ejecting droplets in the processing space 100,
The droplets injected into the processing space 100 through the droplet injection unit 400 are combined with ozone generated in the ozone generator 300 to form OH radicals,
The processing space forming structure is a frame 110 that is coupled to each other to form the skeleton of the structure; And a porous film 500 closely fixed to the frame 110,
The pores 510 are formed in the porous film 500, and the area of the pores 510 is 5 to 10% of the area of the porous film 500, and the air purification system using ozone and OH radicals .
delete delete delete The method according to claim 1, The porous film 500 is an air purification system using ozone and OH radicals, characterized in that a plurality of film yarns are formed by weaving by a plurality of yarns (500 ').
The method according to claim 1 or claim 5, The porous film 500 is used to overlap two or more sheets, characterized in that the two or more porous films 500 are spaced apart from each other, air purification using ozone and OH radicals system.
The method according to claim 1, Characterized in that it further comprises an air flow generating means (410) for generating an upward air flow to increase the time for the droplet to stay floating and a UV generating unit for irradiating ultraviolet rays to the droplet, ozone and OH radicals. Air purification system using.
The method according to claim 1, The processing space 100 is provided with a odor sensor 601 in the processing space and an ozone sensor 602 in the processing space, the odor sensor 601 in the processing space and the ozone sensor in the processing space Based on the value measured by (602), characterized in that for driving the ozone generator 300 and the droplet injection unit 400, the air purification system using ozone and OH radicals.

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