KR100738260B1 - Air purifier with sterilization, deodorization and removal of harmful substances - Google Patents

Abstract

The present invention relates to an air purifying device having a function of sterilization, deodorization and removal of harmful substances that can keep indoors, multi-use facilities or livestock and freshness for a long time. To this end, the first and second vents formed through the upper and lower portions of the housing 30, respectively; An antibacterial filter 100 provided at a lower portion of the first vent hole 40; A suction fan 120 provided below the antibacterial filter 100; A first black light lamp 140 provided below the suction fan 120; A first ceramic photocatalyst filter 200 disposed under the first black light lamp; A first filter 300 provided below the first ceramic photocatalyst filter 200 to perform a deodorizing function; A second filter 400 provided below the first filter 300 to perform deodorization and mold adsorption functions; A third filter 500 provided below the second filter 400 to adsorb bacteria, fungi and viruses; A second ceramic photocatalyst filter 600 provided below the third filter 500; A second black light lamp 620 disposed below the second ceramic photocatalyst filter 600; A discharge fan 700 is provided below the second black light lamp 620 and discharges air through the second vent 50.

Description

Air purifier with sterilization, deodorization and harmful substance removal function {Air purifier with sterilization, deodorization and absorbing toxic materials}

Figure 1a is an external perspective view of the air purifying apparatus having a sterilization, deodorization and harmful substance removal function according to an embodiment of the present invention,

Figure 1b is an exploded perspective view of the interior of the air purifying device having a sterilization, deodorization and harmful substance removal function according to an embodiment of the present invention,

2 is a graph showing a change in gas concentration over time using the air purifying apparatus according to the present invention;

3 is a graph of the result of testing the removal rate of harmful bacteria,

4 and 5 are graphs showing the results of experiments of acetaldehyde removal using the air purifier according to the present invention.

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

30: housing,

40: first vent,

50: second vent,

55: earth leakage breaker,

56: controller,

100: antibacterial filter,

120: suction fan,

140: first black light lamp,

200: first ceramic photocatalyst filter,

300: the first filter,

400: second filter,

500: third filter,

600: second ceramic photocatalyst filter,

620: second black light lamp,

700: BLDC motor.

The present invention relates to an air purifying apparatus having sterilization, deodorization and harmful substance removal functions, and relates to an air purifying apparatus having a sterilization and deodorization function capable of keeping the freshness of a house or barn and crops for a long time.

In general, a lot of dust is rich in indoors such as homes, hospitals and schools. These dusts can be further subdivided into fume, mist and smoke. Fume is 0.1 micron or less in diameter and is solid particles formed by condensation in a gaseous state. In particular, fumes are solid particles obtained by evaporation from a metal, a gaseous component oxidized in the atmosphere, and then condensed.

Mist is liquid fine particles formed by condensation after liquid evaporates, and is generated through spraying or agitation. Smoke is also particulate carbides produced by combustion.

In addition, microbial contaminants are classified into airborne dust and suspended bacteria attached to water vapor, falling bacteria falling to the ground, and microorganisms in the atmosphere. In particular, bacteria floating in the air survive by attaching microorganisms to dust or water vapor, and they grow well when the microorganisms are humid and the air quality is bad. In addition, these microorganisms originate from various spraying agents, air purifiers, refrigerators, humidifiers, pets, and the like, and dust accumulated in the duct of the ventilation system or air conditioner may be another cause of indoor dust and microbial substances. Such microbial contaminants are considered as the leading cause of infectious diseases, allergic diseases, respiratory diseases, and the like.

On the other hand, in the case of the conventional air-conditioner, the bottom-up type that inhales air from the lower part and discharges it to the upper part is often used. However, there is a stable hot air in the upper part of the room, and fine dust and suspended bacteria are contained in such hot air. Therefore, in the case of a bottom-up air conditioner or an air purifier, there is a disadvantage in that the fine dust and suspended bacteria are not efficiently removed but rather dispersed.

In addition, although a conventional air purifier uses an AC motor to suck and discharge a large volume of air, there is a disadvantage in that noise is severe. Therefore, in the prior art, a DC motor was used to overcome this disadvantage, but because of the low torque, it was not possible to move a large volume of air.

Therefore, the present invention has been made to solve the above problems, the first object of the present invention, the fine dust and airborne bacteria (fungus, viruses, E. coli, Salmonella, staphylococcus in the hot air located in the upper part of the room) The present invention provides an air purifying device having sterilization, deodorization, and harmful substance removal function that efficiently adsorbs, decomposes and removes cocci, etc. and exhibits deodorization function.

It is a second object of the present invention to provide an air purifying device having a function of sterilization, deodorization and removal of harmful substances, which can maintain freshness of agricultural products by adsorbing ethylene gas in the agricultural storage warehouse for a longer time.

The third object of the present invention is to efficiently adsorb and remove odors and suspended bacteria and the like in a closed barn (chicken, duck, etc.) to prevent the damage of livestock from infectious viruses, and to provide air conditioning equipped with this product. It is to provide an air purification device having a function of sterilization, deodorization and removal of harmful substances to efficiently remove the secondary infectious agents by supplying a facility system.

The fourth object of the present invention is to reduce the noise and vibration while outputting a high torque to increase the blowing power, and employ a powerful circulation function to effectively remove suspended substances and molds deposited on the floor when the air flow is low It is to provide an air purifying device having a function of deodorizing and removing harmful substances.

An object of the present invention as described above, the first and second vents formed through the upper and lower portions of the housing 30, respectively;

An antibacterial filter 100 provided at a lower portion of the first vent hole 40;

A suction fan 120 provided below the antibacterial filter 100;

A first black light lamp 140 provided below the suction fan 120;

A first ceramic photocatalyst filter 200 disposed under the first black light lamp;

A first filter 300 provided below the first ceramic photocatalyst filter 200 to perform a deodorizing function;

A second filter 400 provided under the first filter 300 to perform deodorization and adsorption functions such as harmful substances and molds;

A third filter 500 provided below the second filter 400 to adsorb bacteria, fungi and viruses;

A second ceramic photocatalyst filter 600 provided below the third filter 500;

A second black light lamp 620 disposed below the second ceramic photocatalyst filter 600;

It is provided in the lower portion of the second black light lamp 620, the air purifying having a sterilization, deodorization and harmful substances function, characterized in that composed of a discharge fan 700 for discharging air through the second vent (50) It can be achieved by the device.

The first vent 40 may be provided at an upper portion of the housing 30, and the second vent 50 may be provided at a lower portion of the housing 30. Also, optionally, the first vent 40 may be provided at the lower portion of the housing 30, and the second vent 50 may be provided at the upper portion of the housing 30.

In addition, the discharge fan 700 is most preferably rotated by a BLDC motor.

In addition, the first filter 300 is a natural zeolite on which silver is supported, a natural zeolite on which calcium is supported, and activated carbon are formed in a weight ratio of 10 to 50: 20 to 50: 20 to 70, respectively, and the zeolite on which silver is supported is 0.1 to After spraying and spraying the 2.5 wt% solution on the natural zeolite, it is preferable that the silver produced by calcining at 200 to 500 degrees is a 0.2 to 2.0 wt% supported natural zeolite.

In addition, the second filter 400 is composed of silver-supported natural zeolite, calcium-supported natural zeolite and activated carbon in a weight ratio of 20 to 60:30 to 50:10 to 40, respectively, and the calcium-supported zeolite is calcium chloride It is more preferable that the saturated solution is spray-sprayed on the natural zeolite, and then calcined at 250 to 450 degrees to be a natural zeolite loaded with 5 to 20% by weight of calcium chloride.

In addition, the third filter 500 is composed of a natural zeolite on which silver is supported, a natural zeolite on which calcium is supported, and activated carbon in a weight ratio of 20 to 40:30 to 50:50 to 80, respectively, and the activated carbon is 0.5 to 2.0 wt% of nitric acid. Spray spraying the solution on the activated carbon and then dried at 80 degrees and calcined at 100 to 300 degrees in a nitrogen atmosphere is most preferably activated carbon with 0.2 to 1.0% by weight of silver.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and the preferred embodiments described in conjunction with the accompanying drawings.

The invention will now be described in detail with reference to the accompanying drawings, in which preferred embodiments are shown. Figure 1a is a perspective view of the air purifying apparatus having a sterilization, deodorization and harmful substance removal function according to an embodiment of the present invention, Figure 1b has a sterilization, deodorization and harmful substance removal function according to an embodiment of the present invention An exploded perspective view of the interior of the air purifier. As shown in Figure 1a and Figure 1b, the air purifying apparatus according to the present invention is composed of an appearance of the housing 30 of the rectangular parallelepiped. The upper portion of the housing 30 is provided with a first vent hole 40, the lower portion is formed with a second vent hole 50.

The inside of the housing 30 has an antimicrobial filter 100, a suction fan 120, a first black light lamp 140, a first ceramic photocatalyst filter 200, first, second, and third, from top to bottom. The filters 300, 400, and 500, the second ceramic photocatalyst filter 600, the second black light lamp 620, and the discharge fan 700 are sequentially arranged.

The antibacterial filter 100 is disposed in the first vent 40. The antibacterial filter 100 primarily filters large dust in the outside air to be sucked, and is made of synthetic resin, sponge, or the like.

The suction fan 120 is configured to suck air contaminated from the outside through the first vent 40 and the antibacterial filter 100. The suction fan 120 may also be configured as a BLDC motor. Since the BLDC motor is independent of the voltage frequency, it can be used anywhere in the world without any conversion. In particular, the BLDC motor can be purchased through TEM TECH Eye Co., Ltd., its internal configuration, functions, and uses are well known to those skilled in the art, so a detailed description thereof will be omitted.

The first black light lamp 140 is provided below the suction fan 120. The first ceramic photocatalyst filter 200 is provided under the first black light lamp. The first black light lamp 140 emits a wavelength of 380 nm in which the photocatalyst (TiO ₂ , SiO ₂ , SiC, and a small amount of active promoter) of the photocatalyst filter 200 can react most efficiently. The UV-C lamp used in the conventional photocatalyst device has been a cause of impairing the air circulation, thereby rapidly deteriorating the purification function, and the direct view of the UV-C lamp is a cause of cataracts. In addition, the conventional UV-C lamps can generate ozone to cause respiratory diseases of children and the elderly. Therefore, its use is inappropriate in places such as hospitals. In the present invention, however, OH radicals are generated when the catalyst (titanium dioxide) is irradiated with ultraviolet rays by installing a black light (BL) lamp. These radicals are more oxidizing than hydrogen peroxide, chlorine, and ozone, which are used as general oxidants, and can decompose organic chemicals or kill bacteria.

When such a photocatalytic reaction proceeds, it can be said to be environmentally friendly because carbon dioxide and water are harmless to the human body.

The first filter 300 (also known as a high functional filter) is provided under the first ceramic photocatalyst filter 200 to perform a function of absorbing and deodorizing the living odor component. The first filter 300 is a natural zeolite on which silver is supported, a natural zeolite on which calcium is supported, and activated carbon in a weight ratio of 10 to 50: 20 to 50: 20 to 70, respectively, and the zeolite on which silver is supported is 0.1 to 2.5 of nitric acid. It is a natural zeolite supported by 0.1 to 2.0% by weight of silver prepared by spray-spraying the wt% solution onto the natural zeolite and then calcining at 200 to 500 degrees. These materials are made porous to increase the surface area and are either immersed in or wrapped with nonwovens.

The second filter 400 (also called multifunctional filter) is provided under the first filter 300 to perform deodorization and mold adsorption. The second filter 400 is composed of silver-supported natural zeolite, calcium-supported natural zeolite, and activated carbon in a weight ratio of 20 to 60:30 to 50:10 to 40, respectively, and the calcium-supported zeolite is saturated calcium chloride solution. After sprayed and sprayed on a natural zeolite, it is calcined at 250 to 450 degrees and is a natural zeolite loaded with 5 to 20% by weight of calcium. These materials are made porous to increase the surface area and are either immersed in or wrapped with nonwovens.

The third filter 500 (also known as a high functional filter) is provided under the second filter 400 to adsorb bacteria, mold and viruses. The third filter 500 is composed of a silver-supported natural zeolite, calcium-supported natural zeolite, activated carbon in a weight ratio of 20 to 40: 30 to 50: 50 to 80, respectively, activated carbon is 0.5 to 2.0% by weight of nitric acid solution Sprayed on activated carbon, dried at 80 degrees, and calcined at 100 to 300 degrees in a nitrogen atmosphere, and activated carbon having 0.2 to 1.0 wt% of silver. These materials are made porous to increase the surface area and are either immersed in or wrapped with nonwovens.

The second ceramic photocatalyst filter 600 is provided under the third filter 500, and the second black light lamp 620 is provided under the second ceramic photocatalyst filter 600. The configuration of the second ceramic photocatalyst filter 600 and the second black light lamp 620 is the same as that of the first ceramic photocatalyst filter 200 and the first black light lamp 140, respectively, and the effect is similar. . Therefore, the second ceramic photocatalyst filter 600 and the second black light lamp 620 finally decompose the odor and convert it into fresh air.

The discharge fan 700 is provided below the second black light lamp 620 and discharges air through the second vent 50. The motor for rotating the discharge fan 700 employs a BLDC motor for high torque, low noise and low vibration.

In addition, an internal circuit breaker 55, a power switch, and the like are provided in the housing 30, and a controller 56 including an LED display device and various switches is located on the front side of the housing 30. Such a controller controls the operation of each suction fan 120, the discharge fan 700, and the first and second black light lamps 140 and 620.

Hereinafter, by directly testing the air purifying apparatus having a sterilization and deodorization function having the configuration as described above to demonstrate the sterilization, deodorization, antibacterial action.

First, the first filter 300 is implemented in a weight ratio of 20:40:40 with silver-supported natural zeolite, calcium-supported natural zeolite, and activated carbon. In addition, the second filter 400 was implemented in a weight ratio of 30:30:40 with silver-supported natural zeolite, calcium-supported natural zeolite, and activated carbon. In addition, the third filter 500 was implemented in a weight ratio of 20:30:50 with silver-supported natural zeolite, calcium-supported natural zeolite, and activated carbon. The following experiment was performed using the air purifier of the present application having the filters 300, 400, and 500 configured as described above.

(Experiment 1)

Table 1 shows the results of testing the antibacterial activity of the air purifier of the present invention by the Korea Institute for Living Environment Testing, and Table 2 shows the results of the deodorizing test.

For the antimicrobial test, one filter specimen is placed in an Erlenmeyer flask, and 0.9% sterile saline is added, followed by equal inoculation of the precultured test bacteria. Immediately after inoculation, 1 ml of the mixture was recovered, and the Erlenmeyer flask was shaken for 24 hours at 120 rpm in a 37 ° C shake incubator. Immediately after the inoculation, the collected suspension was confirmed for the initial bacterial count. The culture was recovered after shaking culture for 24 hours, and the remaining bacterial count after 24 hours was measured. Sterile physiological saline was used as a control. The antimicrobial activity (%) is calculated as (Bacterium after 24 hours of control-Number of bacteria after 24 hours of control group) x 100 / (Bacterium after 24 hours of control). As shown in Table 1, it can be seen that it has an antibacterial activity of 96.7% or 97.6%.

(Experiment 2)

Deodorization test of Table 2 was performed by KICM-FIR-1085 method. As can be seen in Table 2, the deodorization rate after 9 hours was 99.1%, indicating that the deodorization performance was very good.

(Experiment 3)

2 is a graph showing a change in gas concentration over time using the air purifier according to the present invention. As shown in FIG. 2, the concentration of the gas is about 120 ppm after 2 hours, whereas the concentration of the gas is about 0 ppm when the blank is passed through the air purifier. That is, it can be seen from FIG. 2 that the air purifier of the present application completely deodorizes and adsorbs gas.

(Experiment 4)

Hereinafter, the air purifier of the present invention was directly installed in the mushroom spawn culture chamber, and the success rate of the fungus mushroom was compared. The spawn culture room for Pleurotus eryngii was chosen because it was to be operated as a sterile chamber thoroughly, and the result of contamination was closely related to the mushroom success rate.

In the conventional mushroom spawn culture chamber, a positive pressure device was driven and a powerful air purifier was used, and various articles were sterilized and used. According to this conventional method, the success rate of the new mushroom is about 70 to 90%. However, when the conventional positive pressure device, the air purifier is not operated, and the air purifying device according to the present invention is operated without sterilization and disinfection of the article, the new mushroom success rate was 99.9%. This indicates that it can be satisfied only by installing and operating the air purifying apparatus of the present invention without the difficult management and operation. In addition, the air purifier of the present application has the ability to sterilize harmful bacteria and at the same time have a function that does not sterilize harmful bacteria.

(Experiment 5)

Using the air purifying apparatus according to the present invention was tested the removal rate of harmful bacteria in the situation of the rapid increase in the amount of contamination. First, to determine the degree of contamination inside the laboratory according to the operation of the purifier, the Petri dish containing PDA was opened for 30 seconds, closed, and arranged for 4 days at 28 ° C., and the total number of fungi was counted. The air purifier according to the present invention was operated from the 4th week of January, when the amount of contamination was soaring. In addition, the petri dishes were incubated with the same seed inoculated on the same day, and the number of contaminated seed was selected and the number was checked to examine the correlation with the actual work.

Figure 3 is a graph of the result of testing the removal rate of such harmful bacteria. As shown in Figure 3, it can be seen that after the air purifier according to the present invention operates (from January 4th week), the amount of pollution is sharply falling. Finally, it can be seen that the contamination amount is less than five.

(Experiment 6)

Hereinafter, an experiment of removing acetaldehyde-represented volatile organic compounds (VOCs) using an air purifier according to the present invention will be described. Volatile organic compounds are hydrocarbon compounds that volatilize and generate odors and ozone in the atmosphere. They are carcinogens that cause disorders in the nervous system through skin contact or respiratory inhalation.

First, the air cleaning apparatus of the present application is put into a test apparatus of a predetermined size and then sealed. Then, a predetermined concentration of acetaldehyde is injected into the experimental apparatus. After reaching a certain concentration and equilibrating, the air cleaner is operated. Then, the concentration of acetaldehyde according to the operating time was measured using a measuring device. Then, the operation of the air cleaning device is stopped when acetaldehyde is not detected. Then, a certain amount of acetaldehyde was injected and equilibrated to restart the air cleaner.

4 and 5 are graphs showing the results of experiments of acetaldehyde removal using the air purifier according to the present invention. As shown in Figs. 4 and 5, 60 ppm of acetaldehyde was not detected after 2 hours of injection, 36 ppm of acetaldehyde was not detected after 2 hours of injection, and Injected 41 ppm acetaldehyde was not detected after 2 hours. This indicates that the air purifier of the present application completely removes acetaldehyde by adsorption.

Although used in the present invention with a variety of filters, some of the filters can be omitted or duplicated depending on the selection or need of those skilled in the art, of course, it should also be construed as falling within the scope of the invention.

Therefore, according to one embodiment of the present invention as described above, the fine dust and airborne bacteria (fungus, viruses, Escherichia coli, Salmonella, Staphylococcus, etc.), harmful substances in the hot air located in the upper portion of the room efficiently removed (Sterilization, sterilization) and deodorization function.

In addition, it is possible to efficiently absorb and remove odors and suspended bacteria in a closed barn (chicken, duck, etc.) to prevent the damage of livestock from infectious viruses. By adsorbing and decomposing and removing ethylene gas, the freshness of agricultural products can be kept longer.

In addition, since the BLDC motor can reduce the noise and vibration while outputting a high torque to increase the blowing power, it is possible to solve the inconvenience caused by the noise or vibration even when installed indoors.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention. It is obvious that all modifications fall within the scope of the appended claims.

Claims (7)

First and second vents formed through upper and lower portions of the housing 30, respectively; An antibacterial filter 100 provided at a lower portion of the first vent hole 40; A suction fan 120 provided below the antibacterial filter 100; A first black light lamp 140 provided below the suction fan 120; A first ceramic photocatalyst filter 200 disposed under the first black light lamp; A first filter 300 provided under the first ceramic photocatalyst filter 200 to perform a deodorizing function; A second filter 400 provided below the first filter 300 to perform deodorization and mold adsorption functions; A third filter 500 provided below the second filter 400 to adsorb bacteria, fungi and viruses; A second ceramic photocatalyst filter 600 disposed under the third filter 500; A second black light lamp 620 disposed below the second ceramic photocatalyst filter 600; It is provided in the lower portion of the second black light lamp 620, and comprises a discharge fan 700 for discharging air through the second vent (50), The discharge fan 700 is an air purifying device having a sterilization, deodorization and harmful substance removal function, characterized in that the rotation by the BLDC motor. The sterilization and deodorization of claim 1, wherein the first vent 40 is provided at an upper portion of the housing 30, and the second vent 50 is provided at a lower portion of the housing 30. And an air purifying device having a function of removing harmful substances. The sterilization and deodorization of claim 1, wherein the first vent 40 is provided at the lower portion of the housing 30, and the second vent 50 is provided at the upper portion of the housing 30. And an air purifying device having a function of removing harmful substances. delete The method of claim 1, wherein the first filter 300 is a natural zeolite loaded with silver, a natural zeolite loaded with calcium, activated carbon is composed of a weight ratio of 10 to 50: 20 to 50: 20 to 70, respectively, The silver-supported zeolite is sterilized, characterized in that 0.1 to 2.5 wt% of silver nitrate is sprayed and sprayed on a natural zeolite to carry it, and then produced by firing at 200 to 500 ° C. Air purifier with deodorization and harmful substance removal. The method of claim 1, wherein the second filter 400 is composed of a natural zeolite on which silver is supported, a natural zeolite on which calcium is supported, and activated carbon in a weight ratio of 20 to 60: 30 to 50: 10 to 40, respectively. The calcium-supported zeolite is sprayed and supported by spraying a saturated calcium chloride solution onto the natural zeolite, and then calcined at 250 to 450 degrees to sterilize, deodorize, and harmful, characterized in that the zeolite is loaded with 5 to 20% by weight of calcium. Air purifier with material removal function. The method of claim 1, wherein the third filter 500 is composed of a natural zeolite on which silver is supported, a natural zeolite on which calcium is supported, and activated carbon in a weight ratio of 20 to 40:30 to 50:50 to 80, respectively. The activated carbon is sprayed and sprayed with a 0.5 to 2.0% by weight solution of silver nitrate on activated carbon, dried at 80 degrees, and calcined at 100 to 300 degrees in a nitrogen atmosphere to sterilize, deodorize, and harmful carbon, characterized in that silver is supported by 0.2 to 1.0 wt%. Air purifier with material removal function.

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