KR20230032546A - Collecting device for harmful material in air - Google Patents

Abstract

The present invention relates to a device for collecting a harmful substance, which comprises: a chamber where a fan for sucking air is mounted; and a liquid collection tank configured to collect a harmful substance in the air by allowing air sucked into the chamber to collide with a liquid collection medium. The purpose of the present invention is to provide the collection device capable of collecting the harmful substances such as a virus, bacteria, fungi, and fine dust at high concentration, wherein the harmful substances exist at small concentration in the air.

Description

Device for collecting harmful substances in the air {COLLECTING DEVICE FOR HARMFUL MATERIAL IN AIR}

It relates to a device for collecting substances present in the air.

Respiratory viral infection is one of the most common diseases that occur in humans, causing sequelae in infants, the elderly, and patients with reduced cardiopulmonary function or immune function, leading to death in severe cases. In addition to the influenza virus, respiratory viruses include adenovirus, parainfluenzavirus (PIV), respiratory syncytial virus (RSV), rhinovirus, and severe acute respiratory syndrome (SARS). Viruses, avian influenza virus, and infections caused by new viruses such as Middle East Respiratory Syndrome Coronavirus (MERS-CoV) have become prevalent worldwide, and the COVID-19 virus spreads worldwide, threatening the health and lives of many people. Not only that, but it also amplifies social and economic risks.

In the early stage of the epidemic, there is no clear solution other than prevention, so it is necessary to monitor various pathogens in the air in real time, detect them early, and prevent their spread.

However, airborne pathogens are very difficult to detect because they exist in very minute concentrations. Therefore, a large amount of air must be collected for a long time, and if the amount of the collected sample is not sufficient, an error in analysis that is not detected even though it actually exists will occur.

Air collection technologies include cyclones and electric precipitators, and most of them have disadvantages in that the amount of air that can be processed per unit time is less than several tens of liters per minute (LPM), the noise is large, and the equipment for driving the collector is large and expensive.

An object of the present invention is to provide a collection device capable of catching harmful substances such as viruses, bacteria, molds, and fine dust existing in the air at a small concentration at a high concentration.

The present invention is a chamber equipped with a fan for sucking air; and a liquid collection tank accommodated in the chamber and configured to collide air sucked into the chamber with the liquid collection medium to collect harmful substances in the air.

As an embodiment, the liquid collecting tank includes a container capable of accommodating a liquid collecting medium; And it may include a collection body accommodated in the container. The collecting body may include a plurality of pillars, and may be configured such that the plurality of pillars are at least partially exposed to the outside of the collecting medium while moving or rotating in the container during operation.

As an embodiment, the collecting body includes a circular disk arranged to have a predetermined angle with respect to the surface of the collecting medium; and a rotating shaft rotatably connecting the disk to the container. In addition, the plurality of pillars are provided on the upper surface of the disk, and during operation, a film of the collecting medium is formed on a pillar exposed to the outside of the collecting medium among the plurality of pillars to collide with air sucked into the chamber.

As an example, the bottom surface of the container may be inclined at a predetermined angle identical to that of the disk.

Harmful substance collection device as an embodiment, a drive motor for rotating the collection body; And it may further include a control panel mounted outside the chamber. The control panel may include a processor for controlling the driving motor, and the processor may control the collector to rotate at a predetermined rotation speed based on at least one of temperature and humidity of an environment surrounding the chamber.

As an embodiment, the processor may further control the rotation direction of the collection body.

Harmful substance collection device as an embodiment includes a drive motor for moving the collecting body up and down; And it may further include a control panel mounted outside the chamber. And the control panel may include a processor for controlling the driving motor, and the processor may control the driving motor so that the collecting body moves up and down at a predetermined cycle.

As an embodiment, the processor may further control the driving motor to move to the inside of the collecting medium after the collecting body is exposed to the outside of the collecting medium for a predetermined time.

As an embodiment, the plurality of pillars may be spaced apart from each other at intervals of 0.2 mm to 10 mm.

As an embodiment, the plurality of pillars may have a cylindrical shape having a diameter of 0.1 mm to 5 mm.

As an example, the height may be 0.5 cm to 5 cm.

According to the present invention, harmful substances present in a small amount in the air can be collected in a high concentration in a short time, and accordingly, the time for diagnosis and analysis of harmful substances can be shortened and sufficient samples can be secured.

In addition, according to the present invention, unlike the conventional inertial collision type cyclone liquid collector, since a pump is not used, a low-noise and low-cost collection device can be provided, continuous operation is possible, and miniaturization is possible. In addition, according to the present invention, it is possible to collect fine substances of less than 1 μm in high concentration, which are hardly collected in the conventional inertial collision type cyclone liquid collector.

In addition, according to the present invention, there is an effect of collecting fine substances more safely at a lower cost than conventional electrostatic precipitators using expensive high charges.

1 is a side view showing a schematic configuration of a hazardous substance collecting device according to an embodiment of the present invention;
Figure 2 is a perspective view showing a liquid collection tank of the configuration of the harmful substance collecting device of Figure 1,
3 is a sectional perspective view in the direction I-I of FIG. 2;
Figure 4 is a perspective view showing a collection body of the configuration of the liquid collection tank of Figure 2,
5 is an enlarged plan view of part A of FIG. 4;
6 is a perspective view of a container of the configuration of the liquid collection tank of FIG. 2;
7 is a side view showing a schematic configuration of a harmful substance collecting device according to another embodiment of the present invention;
8 is a perspective view showing a state in which a liquid collection tank is connected to a driving motor in the toxic substance collecting device of FIG. 7;
9 is an exploded perspective view of a liquid collection tank among the components of the toxic substance collecting device of FIG. 7;
10 is a spray and collection system for the collection performance test of the hazardous substance collection device according to the present invention,
11 is a graph of a collection performance comparison experiment using fluorescent silica nanoparticles,
12 is a performance evaluation result obtained by culturing a bacterial trap in a dry film medium.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, if it is determined that the subject matter of the present invention may be obscured, the detailed description thereof will be omitted. In addition, embodiments of the present invention will be described below, but the technical idea of the present invention is not limited or limited thereto and can be practiced by those skilled in the art.

1 is a side view of a harmful substance collecting device according to an embodiment of the present invention. Harmful substance collecting device 100 according to an embodiment of the present invention includes a chamber 110, a fan 120, a control panel 130, a driving motor 140, and a liquid collecting tank 200. 2 is a perspective view of the liquid trap 200, and FIG. 3 is a cross-sectional view in the direction I-I of FIG.

The chamber 110 sucks air into the chamber and inertia collides the sucked air with the liquid collecting tank 200 to form a space for collecting harmful substances in the air. The chamber 110 has an air inlet 111 formed thereon, and a fan 120 is mounted on the air inlet 111 . In addition, a ventilation hole (not shown) may be further formed in the chamber 110 . The chamber 110 may be made of PLA (Poly Lactic Acid). The chamber 110 may be manufactured with a 3D printer.

The fan 120 has a sufficient flow rate to introduce a large amount of air from the outside so that harmful substances can be collected in a high concentration in a short time. As an example, the fan 120 may have a diameter of 5 cm to 30 cm and a flow rate of 100 LPM to 5,000 LPM (L/min). For example, the fan 120 may be 15 cm in diameter and have a flow rate of 2,650 LPM. The size of the air inlet 111 of the chamber 110 is determined corresponding to the size of the fan 120 .

The control panel 130 is electrically connected to the fan 120 and includes a processor (not shown) for controlling the rotational speed of the fan 120 . In addition, the control panel 130 may further include a display (not shown) displaying the rotational speed of the fan 120 and buttons (not shown) for controlling power and rotational speed of the fan 120 . In addition, the processor of the control panel 130 is electrically connected to the collector 230 to control the operation of the collector 230 . This is described later.

In this embodiment, the control panel 130 has been described as a configuration mounted outside the chamber 110, but the present invention is not limited thereto. As another embodiment, the control panel may be implemented in the form of a terminal such as a personal computer, laptop, or smart phone in which a program or app for controlling the collecting device is installed, and the fan 120 and the driving motor ( 140), it is possible to control the operation of each component.

The driving motor 140 is connected to the driving gear 220 to rotate the driving gear 220, and accordingly, the collection body 230 engaged with the driving gear 220 rotates. The driving motor 140 has a motor shaft connected to the shaft 221 of the driving gear 220 . The drive motor 140 receives a control signal from the control panel 130 and rotates the drive gear 220 at a predetermined rotational speed.

The liquid collecting tank 200 is accommodated in the chamber 110 and includes a container 210, a driving gear 220, and a collector 230. The container 210 accommodates a liquid collecting medium (eg, tertiary distilled water) for collecting harmful substances, and the collecting body 230 is arranged so that the collecting body 230 can be at least partially submerged in the collecting medium. accept In addition, a drive gear 220 engaged with the collector 230 is installed on the inner sidewall of the container body 212, and the shaft 221 of the drive gear 220 is formed in a groove formed on the sidewall of the container body 212 ( 211) is connected to the drive motor 140.

The drive gear 220 includes a circular plate 223 having a plurality of teeth 225 formed on its outer circumference. In addition, the driving gear 220 includes a shaft 221 extending from the center of the circular plate 223 to the driving motor 140 . The circular plate 223 may be disposed parallel to the sidewall of the container body 212 .

The liquid collecting tank 200 is located in the chamber 110 such that an upper portion of the container body 212 is open toward the air inlet 111 . Air sucked into the chamber 110 through the air inlet 111 may collide with the surface of the collection medium accommodated in the container 210 of the liquid collection tank 200 by inertia. In addition, the inhaled air additionally inertially collides with the film of the collecting medium formed on the surface of the collecting body 230 when the collecting body 230 provided in the liquid collecting tank 200 rotates, thereby causing harmful effects in the air at high concentration in a short time. The material can be collected as a collection medium. It is explained in more detail below.

4 is a perspective view of the collector 230, and FIG. 5 is an enlarged plan view of part A of FIG. Collecting body 230 includes a circular disk 233 formed with a plurality of teeth 235 on the outer periphery. A plurality of teeth 235 of the collection body 230 is engaged with the plurality of teeth 225 of the drive gear 220, and accordingly, when the drive gear 220 rotates, the collection body 230 engaged with the drive gear 220 ) rotates at a predetermined rotational speed. As shown in FIG. 1, when the collecting body 230 is disposed inclined with respect to the surface of the collecting medium contained in the container 210, the drive gear 220 is arranged to engage with the highest teeth during rotation of the collecting body 230. do.

In addition, the collecting body 230 includes a plurality of pillars 231 provided on the upper surface of the disk 233 to increase the surface area where the inhaled air inertially collides with the collecting medium. The pillar 231 may have a cylindrical shape, the diameter (d) of the pillar 231 may be 0.1 mm to 5 mm, and the height may be 0.5 cm to 5 cm. For example, the diameter of the pillar 231 may be 1 mm to 3 mm. The plurality of pillars 231 are disposed at intervals G from each other, and may be disposed at intervals G of 0.2 mm to 10 mm.

The plurality of pillars 231 may be arranged in a line along an imaginary line L when an imaginary line L is drawn radially outward from the center C of the disk 233 . However, it is not limited thereto, and any arrangement in which the largest number of pillars 231 can be arranged on the disk 233 on the same plane may be used. In addition, the plurality of pillars 231 may be arranged in a regular or irregular pattern capable of maximizing the surface area of the collecting medium that inertially collides with the intake air when the collecting body 230 rotates.

The disk 233 of the collecting body 230 may be disposed inclined at a predetermined angle with respect to the surface of the collecting medium contained in the container 210 . For example, the collecting body 230 may be inclined with respect to the surface of the collecting medium at an angle of 1 ° to 90 °. Since the disk 233 is tilted with respect to the surface of the collecting medium, the amount of the collecting medium contained in the container 210 is adjusted so that at least a portion of the collecting medium 230 is exposed outside the collecting medium. can be rotated. When the collecting body 230 rotates, a film of the collecting medium is formed on the plurality of pillars 231 exposed to the outside of the collecting medium to inertially collide with air drawn into the chamber 110 .

6 is a perspective view of container 210 . 1, 3 and 6, in the container 210, the bottom surface 214 of the container body 212 is inclined at the same angle as the disk 233 of the collecting body 230. Since the bottom surface 214 of the container 210 is inclined in this way, the amount of the collection medium required to submerge the inclined collection body 230 at least partially is smaller than when the bottom surface of the container is not inclined. . For example, when the collecting body 230 is immersed in the collecting medium at least up to the center C, a smaller amount of collecting medium is required when the bottom surface of the container is tilted than when it is not tilted. Therefore, it is possible to collect harmful substances in the air at higher concentrations during the same period of time.

As an additional and optional embodiment for further reducing the amount of the collecting medium, a plurality of stepped portions 217A and 217B may be further provided on the inner wall of the container body 212 . The plurality of stepped portions 217A and 217B extend radially inward from the inner wall of the container body 212 and extend to the bottom surface 214 in the longitudinal direction to further narrow the area of the bottom surface 214, thereby reducing the container. overall volume decreases.

Collecting body 230 further includes a rotating shaft fixing part 232 provided at the center (C) of the upper surface of the disk 233. The rotating shaft fixing part 232 is rotatably coupled to the bottom surface 214 of the container through the rotating shaft 219 . A coupling hole 216 to which the rotation shaft 219 is coupled is formed on the bottom surface 214 of the container. The container 210 further includes a bearing 218 fixed in the coupling hole 216 .

The vessel 210 may have a bottom surface 214 spaced apart from the bottom surface of the chamber 100 to have an empty space therebetween, in order to minimize materials required for manufacturing the vessel. In this case, a rotary shaft connecting portion 215 for rotatably connecting the rotary shaft 219 to the container 210 may protrude downward from the bottom surface 214 . The protruding length and thickness of the rotational shaft connecting portion 215 in the width direction are determined as necessary for rigidity enough to rotatably support the rotational shaft 219 . Referring to FIG. 3 , the rotating shaft 219 functions as a rotating shaft of the collecting body 230 tilted at a predetermined angle, so it is disposed to be inclined with respect to the bottom surface of the chamber 110 . The rotating shaft connecting portion 215 of the container 210 is configured to firmly support both the tilted rotating shaft 219 and the collecting body 230 fixed to the rotating shaft 219 during rotation of the collecting body. The coupling hole 216 extends from the bottom surface 214 to the rotation shaft connecting portion 215 . The lower part of the rotation shaft connection part 215 of the container 210 is spaced apart from the bottom surface of the chamber 110, so that the vibration transmitted to the rotation shaft connection part 215 is transmitted to the chamber 110 when the collecting body 230 rotates. It can be prevented.

In this embodiment, the drive motor 140 is connected to the drive gear 220, the plurality of teeth 225 of the drive gear 220 and the plurality of teeth 235 of the collection body 230 are engaged with the collection body 230 ) is configured to rotate, but the present invention is not limited thereto. The drive shaft of the drive motor may be directly connected to the rotation shaft 219 .

Each of the container 210, the drive gear 220, and the collection body 230 may be made of ABS (acrylonitrile-butadiene-styrene copolymer) or PLA (Poly Lactic Acid), and may be produced by a 3D printer. The container 210 may be manufactured in a circular shape and in a size capable of accommodating 200 ml to 1,000 ml of the liquid capture medium.

The processor of the control panel 130 may control the driving motor 130 so that the collector 230 rotates at a predetermined rotational speed. For example, the processor may control the collector 230 to rotate at a predetermined rotational speed based on at least one of humidity and temperature of an environment in which the chamber 110 is placed. When the humidity of the surrounding environment is low, since the collecting medium evaporates quickly in the pillar 231 exposed to the outside of the collecting medium from the collecting body 230, it is necessary to rotate the collecting body 230 at a higher speed than when the humidity is high. there is However, if the collecting body 230 rotates at too fast a rotational speed, the film of the collecting medium formed on the pillar 231 is destroyed and the collecting medium leaves the collecting body 230 and scatters. The maximum rotational speed of the collecting body 230 allowed in consideration of the physical characteristics of the collecting medium may be predetermined.

Also, the processor of the control panel 130 controls the rotation direction of the collector 230 through control of the drive motor 130 . For example, the processor may control the collector 230 to rotate clockwise for a predetermined time and then rotate the collector 230 counterclockwise for a predetermined time. The clockwise rotation time and the counterclockwise rotation time of the collection body 230 may be the same or different.

As an additional embodiment, the liquid collecting tank 200 may be configured to adjust the angle of the circular disk 233 with respect to the surface of the collecting medium. Due to the characteristics of the microorganisms, bacteria or viruses to be collected, when the collection efficiency is better when directly colliding with the surface of the collection medium, the angle of inclination of the circular disk 233 is adjusted to be small, and the characteristics of the microorganisms, bacteria or viruses to be collected If the collection efficiency is better when colliding with the film-coated pillar of the collection medium, the collection efficiency can be improved according to the characteristics of each microorganism by adjusting the inclination angle of the circular disk 233 to a greater extent.

7 is a side view showing a schematic configuration of a hazardous substance collecting device according to another embodiment of the present invention. Harmful substance collection device 100 'according to another embodiment of the present invention, the chamber 110, fan 120, control panel 160, drive motor 170, motor stand 180, liquid collection tank ( 300). Since the chamber 110 and the fan 120 have the same configuration as the above-described embodiment, detailed descriptions thereof are omitted. Like the control panel 140 described above, the control panel 160 may be mounted outside the chamber 110 or implemented in the form of a terminal, and electrical power is provided to the fan 120 and the drive motor 170 through a wired or wireless connection. It is connected to, and it is possible to control the operation of each component.

The drive motor 170 rotates the pinion gears 326 and 327 by connecting the two motors 171 and 177 to the rotation shafts 321 and 325 of the corresponding two pinion gears 326 and 327, respectively. The driving motor 170 may receive a control signal from the control panel 160 to rotate the pinion gears 326 and 327 at a predetermined rotational speed and at predetermined intervals.

8 is a perspective view showing a state in which the liquid collection tank 300 is connected to the driving motor 170 in the harmful substance collecting device 100', and FIG. 9 is an exploded perspective view of the liquid collection tank 300. The liquid collecting tank 300 is accommodated in the chamber 110, and the collecting body 330 is configured to move up and down in the container 310. The container 310 accommodates a liquid collecting medium (eg, tertiary distilled water) for collecting harmful substances, and has a sufficient height so that the collecting body 330 can move up and down as needed.

For vertical movement of the collection body 330, two rack gears 336 and 337 are provided on the rim of the circular disk 333 of the collection body 330, and the rack gears correspond to two pinion gears 326 and 327 ) is interlocked with As described above, since the pinion gears 326 and 327 are rotated by the drive motor 170, the collecting body 330 can linearly move up and down accordingly.

A plurality of pillars 331 are provided on the upper surface of the disk of the collecting body 330, and since the detailed configuration of the pillars 331 is the same as that of the pillar 231 of the collecting body 230 described above, a detailed description thereof will be omitted.

However, the shape of the collecting body 330 is not limited to a circular shape, and may be a rectangular plate or polygonal plate shape instead of a circular disk. In this case, the shape of the container 310 may also have a bottom surface 314 of a quadrangular or polygonal shape, unlike the drawing. Also, unlike the embodiment of FIG. 1 , the bottom surface 314 of the container body 312 of the container 310 of the liquid collection tank is horizontal. Other than that, since it is similar to the container 210 described above, detailed description is omitted.

A processor (not shown) of the control panel 160 may be electrically connected to the driving motor 170 to control the vertical movement of the collector 330 . For example, when the collecting device 100' is operated, the processor operates the driving motor 170 so that the collector 330 repeats an operation of rising and falling (refer to the arrow in FIG. 7) on the surface of the collecting medium at a predetermined cycle. You can control it. The cycle of repeating the up-and-down movement of the collecting body 330, the time exposed to the outside of the collecting medium, and the time to be immersed in the collecting medium may be determined based on the characteristics of the microorganism, bacteria or virus to be collected.

The driving motor 170 may be supported by the motor pedestal 180 and may be fixed within the chamber 110 through the motor pedestal 180 .

As a further embodiment, the harmful substance collection device according to the present invention may be configured such that the collecting body is capable of both up-and-down movement and rotational movement.

Experimental Example 1: Collection and PCR analysis of bio-aerosol (bacteria/virus)

A collection performance test of the hazardous substance collection device according to the present invention was performed using the injection and collection system of FIG. 10 .

In the collecting device (H-Guard) according to the present invention, the chamber was manufactured in a rectangular shape with a horizontal length and a vertical length of 30 cm, respectively, and a height of 20 cm. A fan with a diameter of 15 cm and a flow rate of 2,650 LPM was used. The air sucked into the chamber by the fan was adsorbed on the pillars of the collector on which the film of the trapping medium was formed, and the bioaerosol was collected in the trapping medium. The size of the vessel was made in a circular shape with a diameter of 25 cm and a height of 5 cm, and 400 ml of tertiary distilled water was used as a liquid collection medium. The pillars of the collection body were manufactured in a cylindrical shape with a diameter of 1 mm and a length of 1 mm, and a plurality of pillars were all manufactured in the same shape. The collecting body was partially supported on the collecting medium in an inclined state, and rotated at a constant rotational speed while being supported at least to the center (C) to cause inertial collision between the bio-aerosol and the collecting body introduced through the air inlet.

In the system of FIG. 10, devices for constant injection include an atomizer (TSI 9302) that generates aerosol by the spray force of compressed air and a diffusion dryer (silica gel) to dry water particles included in the aerosol. ) were sequentially connected to configure the device.

The pressure of the particle generator was fixed at 100 psi, and the humidity of the diffusion dryer was maintained at less than 50%. In an acrylic collection booth designed for a constant spraying environment, a collection performance comparison experiment was conducted by installing the harmful substance collection device according to the present invention and the bio-sampler (SKC), which is a control group, separately.

In the capture experiment, viruses and bacteria were used as bioparticles. The virus was irradiated with H1N1 influenza virus (1.66x10 ⁷ TCID / ml) at a wavelength of 365 nm of a UV lamp for 3 hours to remove infectivity, and then buffer exchanged with ultrapure distilled water using a PD-10 column. After diluting it 50 times with distilled water, the amount of the spray solution was 30 ml, and the final concentration was 3.3x10 ⁵ TCID/ml. Bacterial spray solution was irradiated with E.coli in the liquid medium at a wavelength of 365 nm of a UV lamp for 3 hours to remove the activity, diluted in distilled water, and measured by UV/Vis spectrometer at a wavelength of 600 nm. 0.2 ~ 0.5 was used.

The Bio-Sampler (SKC) is a device used to collect aerosols and biological particles suspended in the air by inhaling ambient air at a flow rate of 15 LPM (L/min). The pump was collected during operation.

Harmful substance collection device according to the present invention also puts 400 ml of tertiary distilled water as a collection medium into a container, operates the fan and collector to spray and collect for 1 hour, Bacterial and viral nucleic acids were extracted using a DNA extraction kit, and then measured with an RT-PCR machine using specific primers.

As a result of quantitatively obtaining the capture amount by obtaining each standard curve and analyzing the (Cq) value amplified by the corresponding primer, the collection device of the present invention (H -Guard) performance was found to be superior.

Experimental Example 2. Fluorescence intensity analysis of fluorescent nanoparticles of various sizes

11 is a graph of a collection performance comparison experiment using fluorescent silica nanoparticles. In order to see the collection performance by particle size, fluorescent silica particles of 0.1 μm to 1 μm were diluted in distilled water and adjusted to a concentration of 0.1 mg / ml to 0.5 mg / ml. At the same time, a comparison experiment was conducted between the bio-sampler (SKC) and the collection device according to the present invention.

200 μl of the total solution of the fluorescent silica nanoparticles was taken and placed in three places per sample in a 96-well plate, then put into a fluorescence analyzer, excited at 495 nm, and then measured for fluorescence intensity (FL intensity) at 520 nm. After that, the average of the three values was obtained. As a result, it was confirmed that the collection device (H-Guard) of the present invention has better collection performance than the control bio-sampler (SKC) in all sizes.

Experimental Example 3: Dry film counting method (3M Petrifilm, Coliform Count Plates) - Bacteria detection

FIG. 12 (a) shows the culture of the collected bacteria of the bio-sampler (SKC) as a control on a dry film medium, and FIG. 12 (b) shows the collected bacteria of the collection device (H-Guard) of the present invention on a dry film medium. This is the performance evaluation result obtained by culturing. After collecting bacteria with the control bio-sampler (SKC) and the collecting device (H-Guard) of the present invention, only 1 ml of the collected liquid was collected, inoculated into a film medium, and then pressed with a circular pressure plate and cultured at 37 degrees for one day. .

After one day, the number of red cells cultured in the press plate circle was counted and averaged. As a result, it was visually confirmed that the collection device of the present invention generated bacteria dozens of times as compared to the control bio-sampler.

In the above, the preferred embodiments of the present invention have been described in detail, but the technical scope of the present invention is not limited to the above-described embodiments and should be interpreted according to the claims. At this time, those skilled in the art should consider that many modifications and variations are possible without departing from the scope of the present invention.

Claims (10)

A chamber equipped with a fan to draw air; and
A liquid collection tank accommodated in the chamber and configured to collect harmful substances in the air by colliding air sucked into the chamber with a liquid collection medium,
The liquid collection tank,
A container capable of accommodating the liquid trapping medium; and
A collector having a plurality of pillars and configured such that the plurality of pillars are at least partially exposed to the outside of the collecting medium while moving or rotating in the container during operation.
Hazardous material collection device. According to claim 1,
The collection body,
A circular disk arranged to have a predetermined angle with respect to the surface of the collecting medium; and
Further comprising a rotational shaft rotatably connecting the disk to the container,
The plurality of pillars are provided on the upper surface of the disk,
During operation, a film of the collecting medium is formed on the pillar exposed to the outside of the collecting medium among the plurality of pillars, which can collide with air sucked into the chamber.
Hazardous substance collection device. According to claim 2,
The bottom surface of the container is inclined at the same predetermined angle as the disk,
Hazardous material collection device. According to claim 2,
a drive motor for rotating the collector; and
Further comprising a control panel mounted outside the chamber,
The control panel includes a processor for controlling the driving motor,
The processor controls the collector to rotate at a predetermined rotational speed based on at least one of temperature and humidity of the environment surrounding the chamber,
Hazardous material collection device. According to claim 4,
The processor further controls the rotation direction of the collection body,
Hazardous material collection device. According to claim 1,
a drive motor for vertically moving the collector; and
Further comprising a control panel mounted outside the chamber,
The control panel includes a processor for controlling the driving motor,
The processor controls the drive motor so that the collecting body moves up and down at a predetermined cycle,
Hazardous material collection device. According to claim 6,
The processor further controls the drive motor to move into the collecting medium after the collecting body is exposed to the outside of the collecting medium for a predetermined time,
Hazardous material collection device. According to claim 1,
The plurality of pillars are spaced apart from each other at intervals of 0.2 mm to 10 mm,
Hazardous material collection device. According to claim 1,
The plurality of pillars are cylindrical in shape with a diameter of 0.1 mm to 5 mm,
Hazardous material collection device. According to claim 1,
The plurality of pillars have a height of 0.5 cm to 5 cm,
Hazardous material collection device.

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