KR102280467B1 - Air Cleaning Devices of water cooling type for Removing Fine Particulate Matter - Google Patents

Abstract

The present invention relates to a water cooling type air cleaning device, and more specifically, to a water cooling type air cleaning device, which comprises: a filter layer for purifying polluted outside air; an air compressor for compressing outside air; a microbubble generator connected to one side of the air compressor and receiving external air discharged from the air compressor to generate microbubbles; an air purification aquarium having a microbubble supply pipe connected to one side to which the microbubbles generated by the microbubble generator are supplied, and having an open top surface so that the external air inside the microbubbles is purified and then discharged to the outside; a water supply pipe for supplying water to the air purification aquarium; a wastewater discharge pipe connected to the other side of the air purification aquarium and through which wastewater containing fine dust and contaminants inside the microbubble is discharged; an ultrasonic generator installed on one side of the air purification aquarium; a centrifuge connected to the wastewater discharge pipe and including a pollutant discharge pipe for discharging the fine dust and pollutants; a pump to which purified water is supplied from the centrifuge; and a central control unit.

Description

Wet air purifier for removing fine dust {Air Cleaning Devices of water cooling type for Removing Fine Particulate Matter}

The present invention relates to a wet air purifier, and more particularly, to a wet air purifier that effectively removes fine dust and contaminants from outside air using microbubbles and ultrasonic waves.

Indoor air pollution in schools, apartments, and underground shopping centers in Korea is at a serious level. In addition, a large amount of floating dust is present in the indoor air according to indoor activities, and fine dust from China affects Korea, and the indoor air is also polluted a lot. In particular, indoors such as school classrooms or offices, the generation of fine dust caused by people's activities not only causes eye and throat pain, but also inhaled dust causes various respiratory and lung diseases.

In addition, the perception that the indoor air of a conventional building is a subject of management was insufficient, and only temperature management focused on heating or cooling was used. However, due to health problems caused by the increase of air pollutants as described above, many technologies for purifying indoor air are being developed.

In general, an air purifier purifies indoor air to maintain a proper sanitary environment (or work environment) or purifies contaminated air before discharging it into the atmosphere, and is divided into dry and wet types.

The dry air purifier is divided into two types, an electrostatic precipitation type and a filter filtration type. Here, the electrostatic precipitation type has an advantage in that there is no need to replace the filter because it does not have a filter, but when dust accumulates on the electrostatic precipitator plate, the purification ability is deteriorated and the dust removal ability is weak.

In addition, the filter filtration type filters various particulates from the filter as air flows through the filter, so it has excellent purification ability and can be evaluated as the best for removing yellow dust, but it is cumbersome because the filter needs to be replaced periodically and the filter for maintenance The disadvantage is that there is a replacement cost.

In addition, the wet air purifier has the advantage that the inhaled air is brought into contact with water so that harmful substances are adsorbed and removed by the water.

However, the conventional air purifier has a great filtering effect on dust of 10 μm or more that can be visually confirmed among dust contained in the air, but the dust of 10 μm or less, especially ultra-fine particles of 2,5 μm or less that are difficult to check with the naked eye. For dust (PM-2.5), the filtering performance was not satisfactory.

In other words, ultrafine dust (PM-2.5) contained in the air is produced when nitrogen oxides (NOx) emitted into the atmosphere from automobiles and factories undergo a photochemical reaction when exposed to sunlight in the atmosphere. PM-2.5) is not easy to collect, so it has a long residence time in the air and penetrates into the alveoli of the human body, causing various respiratory diseases and is known to worsen the immune function of the human body.

In the case of such fine dust, it is mainly generated when combustion of vehicles or incineration of something in an industrial complex or agricultural and fishery industry or waste facilities. In particular, in the case of private power generation facilities equipped with incinerators, manufacturing combustion facilities, livestock and fishery facilities, and waste incineration facilities, the PM2.5 emission is approximately 635 (ton/yr) and 493 (ton/ton/ton/yr) per year, respectively. yr), about 418 (ton/yr), and about 221 (ton/yr), etc., are among the top 20 in PM2.5 emissions, indicating that the rate of fine dust generation is significant.

Next, the prior art existing in the field to which the technology of the present invention belongs will be briefly described, and then the technical matters that the present invention intends to achieve differently compared to the prior art will be described.

First, Korean Patent Application Laid-Open No. 10-2019-0083854 (July 15, 2019) relates to a water-cooled air purifier capable of removing ultra-fine dust, and delays the movement of incoming air by using a multi-stage water film screen. technology that can increase the contact time with air while securing time to efficiently remove ultra-fine dust (PM-2.5) contained in the air, thereby increasing the removal efficiency of ultra-fine dust (PM-2.5) It is described (patent document 01).

In addition, Korean Patent Application Laid-Open No. 10-2012-0122883 (November 7, 2012) relates to a centrifugal separation type wet air purifier, specifically, it collects pollutants in the air as fine water particles and the specific gravity difference between air and water. It relates to a centrifugal separation type air purifying device that purifies air using a centrifugal separation vortex chamber based on the rotational speed of a centrifugal fan (Patent Document 02).

However, since the wet air purifier presented in the above patent documents may cause atopy or asthma due to the propagation of bacteria, mold, etc., it is necessary to combine a device providing a sterilization function in the wet air purifier.

According to the above circumstances, the present invention proposes a technology for an air purifier capable of effectively removing fine dust and contaminants from outside air using microbubbles and ultrasonic waves, as well as removing harmful microorganisms contained in the air. want to

Korean Patent Publication No. 10-2019-0083854 (2019.07.15.) Korean Patent Publication No. 10-2012-0122883 (2012.11.07.)

The present invention was created to solve the above problems, and by using the energy generated from the microbubble generator and the ultrasonic generator, it removes fine dust and contaminants contained in external air to discharge clean air. There is this.

An apparatus for removing fine dust according to an embodiment of the present invention includes: a filter layer for purifying polluted external air; an air compressor connected to the filter layer and compressing external air; a microbubble generator connected to one side of the air compressor and receiving external air discharged from the air compressor to generate microbubbles; an air purification aquarium having a microbubble supply pipe connected to one side to which the microbubbles generated by the microbubble generator are supplied, and having an open upper surface so that the external air inside the microbubbles is purified and then discharged to the outside; a water supply pipe for supplying water to the air purification aquarium; a wastewater discharge pipe connected to the other side of the air purifying aquarium and discharging wastewater containing fine dust and pollutants inside the microbubbles; an ultrasonic generator installed on one side of the air purification aquarium; a centrifugal separator connected to the wastewater discharge pipe and including a pollutant discharge pipe for discharging the fine dust and pollutants; a pump to which purified water is supplied from the centrifuge; and a central control device, wherein the purified water discharged from the pump is re-supplied to the microbubble generator, and fine dust and contaminants in the microbubbles supplied to the air purification aquarium are removed from the water in the air purification aquarium. mixed with the wastewater and discharged to the wastewater discharge pipe, and the air inside the microbubbles is automatically discharged to the upper surface of the air purification aquarium after fine dust and contaminants are removed.

In one embodiment, the filter layer of the filter layer is selected from Ceramic, Polytetrafluoroethylene (PTFE), Polyimide (PI), M-Polyaramide (Nomex), Polyphenylenesulphide (PPS), Polyester (PET), synthetic fiber, and activated carbon. It may include any one or more materials.

As an embodiment, the fine dust removal device further includes an outside air sensor unit for measuring the state of the outside air, and the measured value detected by the outside air sensor unit is transmitted to the central control unit, and a command of the central control unit can be automatically controlled by

As an embodiment, the external air sensor unit may include a fine dust sensor unit for detecting the concentration of fine dust and a gas sensor unit for detecting gaseous pollutants.

In an embodiment, the fine dust removal device includes an external air inlet, and the external air inlet includes an external air inlet fan that sucks in external air, an external air supply pipe that introduces the external air introduced into the inlet fan, and the It is installed on the outside air supply pipe and includes an outside air inlet switch for controlling the inflow of outside air, and the outside air inlet fan and the outside air inlet switch can be controlled by the central control device.

In one embodiment, the air purification aquarium includes a water level measurement sensor unit for measuring the water level, the measurement value detected by the water level measurement sensor unit is transmitted to the central control unit, and the water supply pipe by the command of the central control unit This can be controlled automatically.

As an embodiment, the ultrasonic generator may use a frequency of 20 to 50 KHz.

In one embodiment, the air purification aquarium may further include one or more inhalers for inhaling fine dust and pollutants.

In an embodiment, the air purification aquarium includes a purified air discharge unit, and the purified air discharge unit includes a purified air discharge pipe through which purified air is discharged, and a purified air discharge switch installed in the purified air discharge pipe to control the discharge of purified air. and a purified air discharge pipe installed at an end of the purified air discharge pipe and discharging the purified air discharged through the purified air discharge pipe to the outside, wherein the purified air discharge fan and the purified air discharge switch are operated by the central control device. can be controlled.

The device for removing fine dust according to the present invention effectively removes fine dust and contaminants contained in external air using energy generated from microbubbles and ultrasonic waves, as well as water in the process to supply water required by the microbubble generator. can be recycled and used.

In addition, the wet air purifier according to the present invention provides a sterilization function in the wet air purifier to solve the problem of causing atopy or asthma due to the propagation of bacteria such as bacteria and mold in the device.

In addition, according to the present invention, the central control device automatically operates or stops the system according to the indoor fine dust or gas concentration value sensed by the external air sensor unit, so that it is convenient to operate and power consumption can be minimized.

1 is a view for explaining an apparatus for removing fine dust equipped with a microbubble generator and an ultrasonic generator according to an embodiment of the present invention.
2 is a flowchart illustrating a fine dust removal process using a fine dust removal device equipped with a microbubble generator and an ultrasonic generator according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the apparatus for removing fine dust using corridor air according to the present invention will be described in detail so that those of ordinary skill in the art can easily practice the present invention. do.

In each drawing of the present invention, the size or dimensions of the structures are enlarged or reduced than the actual size for clarity of the present invention, and well-known components are omitted to reveal the characteristic configuration, so it is not limited to the drawings. .

In the detailed description of the principle of the preferred embodiment of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

Hereinafter, a fine dust removal apparatus equipped with a microbubble generator and an ultrasonic generator according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining an apparatus for removing fine dust according to an embodiment of the present invention.

As shown in FIG. 1, the fine dust removal device includes a filter layer 10 for purifying polluted external air; an air compressor (20) connected to the filter layer and compressing external air; a microbubble generator 30 connected to one side of the air compressor 20 and receiving external air discharged from the air compressor 20 to generate microbubbles; The microbubble supply pipe to which the microbubbles generated by the microbubble generator 30 are supplied is connected to one side, and the air purification aquarium 40 has an open upper surface so that the external air inside the microbubbles is purified and then discharged to the outside. ; a water supply pipe 41 for supplying water to the air purification aquarium 40; a wastewater discharge pipe 42 connected to the other side of the air purification aquarium 40 and through which wastewater containing fine dust and contaminants inside the microbubbles is discharged; an ultrasonic generator 50 installed on one side of the air purification aquarium 40; a centrifuge (60) connected to the wastewater discharge pipe (42) and including a pollutant discharge pipe for discharging the fine dust and pollutants; a pump 70 to which purified water is supplied from the centrifuge 60; and a central control unit.

In addition, the fine dust removal device re-supplied the purified water discharged from the pump 70 to the microbubble generator 30, and fine dust and contamination inside the microbubbles supplied to the air purification aquarium 40 Substances are mixed with water in the air purification aquarium and discharged to the wastewater discharge pipe 42, and the air inside the microbubbles is automatically discharged to the upper surface of the air purification aquarium 40 after fine dust and contaminants are removed. characterized in that

The apparatus for removing fine dust according to the present invention further includes an outside air sensor unit for measuring the state of the outside air, and the measured value detected by the outside air sensor unit is transmitted to the central control unit, and by the command of the central control unit can be automatically controlled.

The outdoor air sensor unit may include a fine dust sensor unit for detecting the concentration of fine dust and a gas sensor unit for detecting gaseous pollutants, and the sensor unit installed on the inner wall or ceiling of the room measures the indoor pollutant concentration and fine dust concentration. It measures and transmits it to the central control unit.

The fine dust removal device includes an outside air inlet, and the outside air inlet includes: an outside air inlet fan for sucking outside air; an external air supply pipe for introducing the external air introduced into the inlet fan; and an external air inlet switch installed in the external air supply pipe and configured to control an inflow of external air.

When the concentration of the pollutant (fine dust, carbon dioxide, or gaseous pollutant) received from the external air sensor unit is greater than a predetermined value, the central control unit operates the external air inlet, and the pollutant (fine dust, carbon dioxide, or gaseous pollutant) When the concentration of pollutants) is less than a predetermined value, the operation of the external air inlet is stopped.

In detail, the outside air inlet fan and the outside air inlet switch in the outside air inlet may be controlled by the central control device. For example, when the measured value of the carbon dioxide concentration or fine dust detected by the outside air sensor unit is transmitted to the central control device, and the measured value is greater than or equal to a predetermined value, the outside air inlet switch is changed to an open type, and the outside air is introduced The fan starts operating, and the outside air in the hallway flows into the filter in the filter layer through the outside air inlet fan and the outside air supply pipe. Conversely, when the measured value of carbon dioxide or fine dust transmitted to the central control device is less than a predetermined value, the outdoor air inlet switchgear is changed to a closed type, and the operation of the outdoor air inlet fan is stopped.

The filter layer 10 can primarily purify fine dust and contaminants in the introduced external air, wherein the filter layer is Ceramic, Polytetrafluoroethylene (PTFE), Polyimide (PI), M-Polyaramide (Nomex), Polyphenylenesulphide (PPS) , Polyester (PET), artificial fiber (Syntheric fiber), may be any one selected from activated carbon.

Pre-filter and HEPA (High Efficiency Particulate Arrestor) filter are manufactured through the above filter material, and it is possible to filter large dust particles from outside air, increase antibacterial and deodorizing effects, and filter even fine dust.

Specifically, the outside air inlet fan is configured to include an activated carbon filter layer in which one or more filters are stacked, or an activated carbon filter layer in which one or more filters are stacked is installed at a predetermined distance from one surface of the outside air inlet fan. can be The filter layer may remove fine dust or polluting gas from outside air, and may include a filter to which activated carbon is adsorbed, a deodorizing filter or a nano-film filter, and may have one or more filter layers stacked.

The filter layer removes toxic gas odors and various odors in the air to purify the air, and the nano film filter collects even fine dust and at the same time removes the odor of gas contained in the fine dust to purify indoor air. provides In addition, the filter to which the activated carbon is adsorbed provides an effect of removing odors and harmful gases contained in the outside air.

The air compressor 20 is connected to the filter layer, the air compression means for receiving the incoming external air to compress the air; an air storage means for receiving and storing compressed air from the air compression means; pressure sensing means for sensing the internal air pressure of the air storage means; and a nozzle member connected to the microbubble generator.

As shown in FIG. 1 , the microbubble generator 30 may generate microbubbles by receiving the external air discharged from the air compressor 20 , and supply it to the air purification aquarium 40 .

The microbubble generator 30 includes an air inlet connected to one side of the air compressor 20 and into which compressed air is introduced; a water inlet through which water is introduced at a location different from that of the air inlet; and a water discharge unit for discharging water in which microbubbles are generated by interaction between the introduced air and water.

In this case, the micro-bubble refers to an ultra-fine bubble that cannot be visually confirmed as a size of several micrometers or less, for example, a size of 50 micrometers or less.

Ordinary bubbles rise to the surface of water and then burst on the surface of the water, but microbubbles are reduced by pressure in water and disappear while generating various energy.

At this time, the microbubbles supplied from the microbubble generator 30 rupture themselves by external pressure, and when the bubbles burst, the shock wave including ultrasonic waves has a speed of 400 km per hour (sonic wave 140 dB), and when released into the air, it is surrounded by the Leonard effect. Air can be anionized.

Various pollutants present in the air, that is, cigarette smoke sulfurous acid gas, nitrogen oxides, carbon monoxide, ozone, and various organic substances form positive ions, whereas negative ions can be removed by hardening and precipitating these cations.

In addition, when the bubble bursts due to the magnetic pressurization effect, instantaneous high temperature of 4,000 to 6,000 ° C and a shock wave of about 500 atmospheres are generated, thereby sterilizing harmful microorganisms such as bacteria, E. coli, and microscopic eggs in the water.

In the air purification aquarium 40, a microbubble supply pipe to which the microbubbles generated by the microbubble generator 30 are supplied is connected to one side, and after the air inside the microbubbles is purified, the upper surface of the air purification aquarium 40 The upper surface is open to discharge.

In addition, the air purification aquarium 40 may include a purified air discharge unit on the open upper surface, the purified air discharge unit includes a purified air exhaust fan for sucking the purified air; a purified air discharge pipe through which the purified air is discharged; a purified air exhaust switch installed in the purified air exhaust pipe and configured to control the amount of purified air discharged; and a purified air discharge pipe installed at an end of the purified air discharge pipe and configured to discharge the purified air discharged through the purified air discharge pipe to the outside.

In this case, the purified air exhaust fan and the purified air exhaust switch may be controlled by the central control device, and may be automatically controlled according to the operation mode of the external air inlet. As an example, when the external air inlet fan in the external air inlet is operated and the external air inlet switch is changed to an open type, the purified air exhaust fan in the purified air outlet is operated, and the purified air outlet switch is changed to an open type so that the air It serves to help the purified air discharged from the purification aquarium 40 to be efficiently discharged to the outside.

In the air purification aquarium 40, a water supply pipe 41 for supplying water may be installed, and a valve capable of controlling a flow rate in the water supply pipe may be installed.

In addition, the air purifying aquarium 40 includes a water level measuring sensor unit for measuring the water level, and the measured value detected by the water level measuring sensor unit is transmitted to the central control unit, and the water supply pipe according to the command of the central control unit This is automatically controlled. As an example, when the water level in the air purification aquarium 40 exceeds the maximum water level set in the central control device, the valve of the water supply pipe is switched to a locked state, and when the water level is less than the minimum water level, the valve of the water supply pipe opens to open the air purification aquarium ( 40) is supplied with water.

In addition, the air purification aquarium 40 is connected to the other side of the surface where the microbubble generator 30 is installed, and includes a wastewater discharge pipe 42 through which wastewater containing fine dust and contaminants inside the microbubble is discharged. .

In addition, the air purification aquarium 40 may be configured to further include one or more inhalers for inhaling relatively large mass of dust and foreign substances.

In addition, an ultrasonic generator 50 is installed on one side of the air purification aquarium 40, and when strong ultrasonic waves are irradiated into the fluid in the air purification aquarium 40, the ultrasonic waves become pressure waves and the following compressive force (static pressure) and expansion force ( negative pressure) appears repeatedly, and during the negative pressure cycle, bubbles are generated centered on the fine foreign substances in the liquid, and these bubbles disappear during the next compression cycle. An excellent sterilization effect can be obtained due to the cavitation effect of ultrasonic waves.

In this case, the ultrasonic generator preferably uses a frequency of 20 to 50 KHz. Even fine dust (PM-10, PM-2.5) can be removed through the synergistic effect of the cavitation generated when the microbubble is crushed and the cavitation generated when the ultrasonic wave is generated after dust (dust) in the air is attached to the surface of the microbubble. .

The wastewater containing fine dust and contaminants discharged from the wastewater discharge pipe 42 is connected and reaches the centrifuge 60, where the centrifuge 60 includes bacteria, dust, fine particles and It provides a function to separate fine dust and contaminants contained in wastewater from the fluid based on the difference in specific gravity between liquid and solid using the centrifugal force that rotates other pollutants by an electric motor. (Liquid/solid) is preferably rotated at a speed of 500 rpm (revolution per minute) or more, ideally 500 to 50,000 rpm, and most ideally, 1000 to 30,000.

In the first step, air is filtered through a filter, in the second step, solids (dust, fine dust) are suspended and filtered through ultrasonic-microbubbles, and in the third step, even finely small solids are separated from the liquid filtered twice and finally pure air may be generated.

The centrifuge 60 includes a contaminant discharge pipe capable of discharging wastewater containing bacteria, dust, fine particles and other contaminants deposited by centrifugal force, and the contaminant discharge pipe is an electric motor of the centrifuge can be automatically controlled by the central control unit at the speed and control time of

It is possible to re-supply the water discharged from the pump to the microbubble generator 30 and use it several times or more.

In addition, in the fine dust removal process using the fine dust removal device according to the present invention, as shown in FIG. 2 below, air supplied from the outside passes through the filter layer 10 and undergoes a primary purification process (S101), followed by 1 The purified air is compressed to a high pressure by the pressure means in the air compressor 20 and supplied to the microbubble generator 30 (S102). The microbubbles generated by the micro generator 30 are supplied to the air purification aquarium 40 (S103), and the ultrasonic waves generated by the ultrasonic generator 50 simultaneously or sequentially are supplied into the air purification aquarium 40 (S104). ).

At this time, in the case of microbubbles, since the pore size is small, the surface area is large, and bacteria can be easily removed by maintaining negative charge, an excellent sterilization effect is obtained due to the synergy of the cavitation of ultrasonic waves and the self-pressurization effect of the microbubbles, and also Fine dust and contaminants can be precipitated and removed in the centrifuge installed in the

Subsequently, the centrifuge 60 discharges wastewater containing fine particles and other contaminants using centrifugal force, and then re-supplys it to the microbubble generator 30 through the pump 70 (S105) several times or more. can be used as

As described above, the present invention has been described with reference to the embodiments shown in the accompanying drawings, which are merely exemplary, and various modifications and equivalent other embodiments are possible by those of ordinary skill in the art. will understand that Therefore, the technical protection scope of the present invention should be defined by the following claims.

10: filter layer
20: air compressor
30: Microbubble Generator
40: Air purification aquarium
41: water supply pipe
42: wastewater discharge pipe
50: ultrasonic generator
60: centrifuge
70: pump
80: water level measurement sensor unit

Claims (9)

a filter layer for purifying polluted outside air; an air compressor connected to the filter layer and compressing external air; a microbubble generator connected to one side of the air compressor and receiving external air discharged from the air compressor to generate microbubbles; an air purification aquarium having a microbubble supply pipe connected to one side to which the microbubbles generated by the microbubble generator are supplied, and having an open upper surface so that the external air inside the microbubbles is purified and then discharged to the outside; a water supply pipe for supplying water to the air purification aquarium; a wastewater discharge pipe connected to the other side of the air purifying aquarium and discharging wastewater containing fine dust and pollutants inside the microbubble; an ultrasonic generator installed on one side of the air purification aquarium; a centrifuge connected to the wastewater discharge pipe and including a pollutant discharge pipe for discharging the fine dust and pollutants; a pump to which purified water is supplied from the centrifuge; and a central control unit;
The purified water discharged from the pump is re-supplied to the microbubble generator, and fine dust and contaminants inside the microbubbles supplied to the air purification aquarium are mixed with the water in the air purification aquarium and discharged to the wastewater discharge pipe, Fine dust removal device, characterized in that the air inside the microbubble is automatically discharged to the upper surface of the air purification aquarium after the fine dust and contaminants are removed.
According to claim 1,
The filter layer of the filter layer is made of at least one material selected from Ceramic, Polytetrafluoroethylene (PTFE), Polyimide (PI), M-Polyaramide (Nomex), Polyphenylenesulphide (PPS), Polyester (PET), synthetic fiber, and activated carbon. Fine dust removal device comprising a.
According to claim 1,
The fine dust removal device further includes an external air sensor for measuring the state of the external air,
The fine dust removal device, characterized in that the measured value detected by the outside air sensor unit is transmitted to the central control device, and is automatically controlled by a command of the central control device.
4. The method of claim 3,
The external air sensor unit fine dust removal device, characterized in that it comprises a fine dust sensor unit for detecting the concentration of fine dust and a gas sensor unit for detecting gaseous pollutants.
According to claim 1,
The fine dust removal device includes an external air inlet,
The outside air inlet unit includes an outside air inlet fan for sucking outside air, an outside air supply pipe for introducing outside air introduced into the inlet fan, and an outside air inlet switch installed on the outside air supply pipe to control the inflow of outside air do,
Fine dust removal device using corridor air, characterized in that the outside air inlet fan and the outside air inlet switchgear are controlled by the central control device.
According to claim 1,
The air purification aquarium includes a water level measuring sensor for measuring the water level,
The fine dust removal device, characterized in that the measured value detected by the water level measurement sensor unit is transmitted to the central control device, and the water supply pipe is automatically controlled by a command of the central control device.
According to claim 1,
The ultrasonic generator is a fine dust removal device, characterized in that using a frequency of 20 ~ 50KHz.
According to claim 1,
The air purification aquarium is a fine dust removal device, characterized in that it further comprises one or more inhalers for sucking fine dust and pollutants.
According to claim 1,
The air purification aquarium includes a purified air discharge unit,
The purified air discharge unit includes a purified air discharge pipe through which purified air is discharged, a purified air discharge switch installed in the purified air discharge pipe to control the amount of purified air, and an end of the purified air discharge pipe and discharged to the purified air discharge pipe. Including a purified air discharge pipe for discharging the purified air to the outside,
The purified air exhaust fan and the purified air exhaust switch is a fine dust removal device, characterized in that controlled by the central control device.

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