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WO2020256322A1 - Purificateur d'air humide - Google Patents

Purificateur d'air humide Download PDF

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Publication number
WO2020256322A1
WO2020256322A1 PCT/KR2020/007387 KR2020007387W WO2020256322A1 WO 2020256322 A1 WO2020256322 A1 WO 2020256322A1 KR 2020007387 W KR2020007387 W KR 2020007387W WO 2020256322 A1 WO2020256322 A1 WO 2020256322A1
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WO
WIPO (PCT)
Prior art keywords
water film
water
air
washing liquid
water membrane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/007387
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English (en)
Korean (ko)
Inventor
류이하
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2020256322A1 publication Critical patent/WO2020256322A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/028—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas through a wetted wire mesh or a perforated plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/90—Cleaning of purification apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1466—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with pneumatic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • F24F2221/225—Cleaning ducts or apparatus using a liquid

Definitions

  • the present invention relates to a wet air purifier, and more specifically, by passing contaminated air through a fine net-shaped water film filter to allow pollutants to be adsorbed to the water film filter, and the adsorbed pollutants to be discharged to the outside by washing. It relates to a wet air purifier to purify the air.
  • air purifiers for purifying air can be divided into dry air purifiers and wet air purifiers.
  • the dry air purifier is a filtration filter type in which contaminated air is filtered through a filter medium such as fabric, paper, glass fiber, hepa filter, or activated carbon filter using a fan, and a high voltage of thousands of volts is applied to the contaminated air to prevent contaminated air. It can be divided into an electric dust collection type that carries an electric charge and attaches it to the dust collection plate to remove it.
  • the dry filter type has excellent purification ability because it filters pollutants with the filter, but the filter must be replaced periodically, and the electric dust collection type has the advantage of low power consumption and low equipment cost, but low dust collection efficiency and disadvantage of generating ozone. There is this.
  • the dry air purifier is not suitable for outdoor use because the purified air is warmed and lightened and scattered into the air, and the window is closed indoors, and the air purification capacity is small and weak to moisture.
  • dry air purifiers are mainly used in winter and spring with a lot of fine dust and yellow dust, and the humidifier must be operated separately.
  • Wet air purifiers can be broadly divided into a water film filter type that passes contaminated air through a water film, a contact type that contacts a water film, and a spray type that contacts the sprayed water droplets.
  • the wet contact method has the advantage of having fewer splashes, but has a disadvantage of low purification efficiency due to a small contact surface between contaminated air and water, and the wet spray type can increase the purification efficiency according to the spray method, but requires a lot of cost for spraying. , There is a disadvantage of low equipment efficiency due to low contact efficiency between spray water droplets and contaminated air, and difficult to remove spray water droplets.
  • contaminated air is forcibly passed through the water film filter, filtered by the filter pores, and contaminants are adsorbed and dissolved in the water film, resulting in high purification efficiency.
  • the wet air purifier is more economical than the dry air purifier because the purified air is cooled by the evaporative cooling effect and becomes heavy and sinks to the ground.
  • Patent No. 10-1931444 wet type air purifier
  • the water particles sprayed into the air purifier and the external air introduced into the water particles due to collision and friction, the fine dust of the external air, etc.
  • a technology for purifying air by adsorption has been introduced, but the prior art requires a lot of power to spray, the contact time between the water particles sprayed from the top and the polluted air flowing in from the top is short, and the spray water particles are easily blocked.
  • the contact surface area between pollutants and water is small, and water is stored inside the device, which may cause problems in which microorganisms grow inside the device.
  • Patent No. 10-1758984 air purifier with a humidification amount control function purifies air by primary filtering by HEPA filter and secondary filtering by contact with water particles by cyclone swirling flow.
  • a technology that can be used has been introduced.
  • the above-described prior art indicates that a low water particle purification effect may occur by forming a water film on the cyclone wall in a short time by the centrifugal force caused by the cyclone swirling flow, indicating that reinforcement of the primary filtering by the HEPA filter is necessary. You can also see.
  • Patent No. 10-1720695 mixed air purifier
  • fine dust charged at high voltage by inlet air including fine dust and harmful gas is collected using an electric field
  • water-soluble gas in the air is collected using a wet filter unit.
  • a technology has been introduced that simultaneously processes fine dust and harmful gas contained in the air and adds a humidification function by adsorbing and adsorbing non-aqueous gas using a dry filter unit.
  • Patent Document 1 Korean Patent Registration 10-1931444
  • Patent Document 2 Korean Patent Registration 10-1758984
  • Patent Document 3 Korean Patent Registration 10-1720695
  • the present invention has been devised to solve the above problems, and is configured to further maximize the performance of the wet air cleaner of Patent No. 10-1791677, which was previously registered by the inventor. Therefore, the present invention improves the efficiency of removing fine dust and harmful gases by making a thin and uniform water film without free fall of water, increases the performance of the device by expanding the area of the water film, and inhibits the growth of microorganisms by rapidly removing water inside the device.
  • the purpose is to prevent freezing of washing water in the device and to minimize mixing of scattered water droplets into the purified air.
  • the present invention provides a body having a purification space therein and provided with an air inlet and an air discharge portion on one side, a water film filter installed in an inclined form in the purification space of the body, and an inclined water film installed above the water film filter.
  • a washing liquid supply unit that supplies water to the upper part to form a water film and cleans the water film filter, a scattering prevention net installed on the upper part of the water film filter to prevent scattering of water particles, and a water film installed at the inclined lower part of the water film filter.
  • the shape of the air inlet is characterized in that a plurality of inlet pipes are branched at different angles so that inlet air is uniformly supplied to the lower portion of the water film filter.
  • the air inlet portion of the main body is installed below and the air outlet portion is installed above the air inlet portion, and the air inlet portion and the air outlet portion are installed in the same direction from the main body.
  • the lower net frame of the water film filter is characterized in that it extends further in the water supply direction than the upper net frame.
  • the washing liquid supply unit includes a supply pipe that is bent in a "a" shape inside the main body, a distribution pipe connected to the end of the supply pipe and horizontally installed in the width direction, and a plurality of distribution pipes formed at regular intervals along the length direction of the distribution pipe. Consisting of a distribution hole, the distribution hole is characterized in that it is made of a first row hole portion and a second row hole portion having formation sections of different heights.
  • the first row hole portion of the distribution hole is located lower than the second row hole portion, and is formed to have a smaller diameter than the distribution hole of the second row hole portion.
  • the washing liquid discharge unit includes a first drain pipe vertically connected to a lower portion of the drain hole of the water film filter, a collecting pipe formed under the first drain pipe to collect the washing liquid introduced through each drain hole, and the collecting pipe. It is connected to one side of the main body and characterized in that it consists of a second drainage pipe for discharging the washing liquid.
  • a purification space is formed in the left and right sides of the main body, and the purification system includes an air inlet, an air discharge unit, a water film filter, a washing liquid supply unit, a scattering prevention net, and a washing liquid discharge unit. Meanwhile, an opening and closing door capable of opening and closing a hinge is formed on an upper portion of the main body.
  • the opening and closing door includes a rod portion respectively installed inside the pair of opening and closing doors, and a pneumatic cylinder connected to the rod portion and forcibly raising and lowering the rod portion according to the pressure of the injected air to enable opening and closing control. It characterized in that it includes.
  • the wet air purifier of the present invention passes air contaminated with fine dust, ozone, and harmful gases through a three-ply water film filter, and contaminants are adsorbed to the water film and removed by melting, thereby having an air purification effect and a humidifying effect. .
  • the stable thin water film caused by the central water film has the effect of increasing the efficiency of removing pollutants, reducing the consumption amount of cleaning liquid, and lowering the supply pressure of the blown air to increase the performance of the device and lower the noise.
  • FIG. 1 is a view showing the internal configuration of the wet air purifier of the present invention
  • FIG. 2 is a perspective view showing the shape of a water film filter and a scattering prevention net in the wet air purifier of the present invention
  • FIG. 3 is a cross-sectional view showing a triple structure of a water film filter in the wet air purifier of the present invention
  • Figure 4 is a perspective view showing a cleaning liquid supply in the wet air purifier of the present invention
  • 5 to 6 are perspective views showing a washing liquid discharge part in the wet air purifier of the present invention
  • FIG. 7 is a view showing another embodiment of a wet air purifier according to the present invention.
  • FIG. 8 is a view showing the installation state of the washing liquid supply unit and the washing liquid discharge unit in the embodiment of FIG. 7
  • FIG. 9 is a view showing a state in which the opening and closing door is opened in the embodiment of FIG. 7
  • the wet air purifier of the present invention has a main body 100 having an air inlet 110 and an air discharge unit 120 on one side and forming a purification space therein, and the main body 100 ), a water film filter 200 installed in an inclined form in the purification space of the water film filter 200, and a washing liquid installed on the upper part of the water film filter 200 to supply water to the inclined upper portion to form a water film and wash the water film filter 200
  • the supply unit 300, a scattering prevention net 400 installed above the water film filter 200 to prevent scattering of water particles, and a water film filter 200 installed at an inclined lower end of the water film filter 200 It is composed of a washing liquid discharge unit 500 to recover the water that has passed through and discharge it to the outside, and a final filter 600 installed in the air discharge unit 120.
  • the water film filter 200 of the present invention is composed of an upper water film 210a, a central water film 210b, and a lower water film 210c as shown in FIGS. , It is fixed through the upper net frame 220 and the lower net frame 230 formed at the edge, and the upper net frame 220 and the lower net frame 230 in the direction of the washing liquid discharge part 500 have a plurality of drain holes 240 ) Is formed through penetration, and the central water film 210b is of a material or shape having a higher moisture-collecting ability than the upper and lower water film meshes 210a and 210c.
  • the water film filter 200 is a core component of the present invention, and absorbs and removes pollutants from the introduced polluted air.
  • the material of the water film filter 200 is made of any one of polyester, nylon, PET, silk, wool, cotton, hemp, silk, and the pore size is preferably made in the range of 2001 to 5000 ⁇ m.
  • the pollutant is first adsorbed while the introduced contaminated air passes through the water film of the water film filter 200, and the water particles generated by the water film exploding are scattered. While staying under the prevention net 400, contaminants are adsorbed secondary, and the polluted air is finally purified while passing through the final filter 600, while passing through the water film filter 200 and the scattering prevention net 400 while simultaneously humidifying do.
  • the thicker the water film the higher the water film stability, but a high air pressure is required to pass through the thick water film.
  • it is desirable to form a thin and stable water film because the high air pressure causes excessive scattering of water particles and an operating load of the blower.
  • the water film filter 200 of the present invention has a structure suitable for forming a thin and stable water film as described above,
  • the water film filter 200 is formed of a triple net such as an upper water film 210a, a central water film 210b, and a lower water film 210c. It is made of a material or shape having a higher moisture-collecting ability than 210a) and 210c.
  • the central water film 210b may be applied with a fiber material having high hygroscopicity
  • the upper and lower water film meshes 210a and 210c may be applied with stainless steel having relatively low hygroscopicity.
  • the same material can be applied in a form that relatively increases the hygroscopicity of water by changing the shape or size of the net.
  • the central water film 210b and the upper and lower water film meshes 210a and 210c are in complete contact with each other. That is, when the washing liquid is collected in the central water film 210b to form a water film, it has the advantage of uniformly and stably forming the entire water film. In addition, it is possible to easily generate a water film with a small amount of washing liquid, and since the central water film 210b itself has a function of a drain passage, the washing liquid does not drip and drains easily.
  • the lower net frame 230 of the water film filter 200 extends further in the water supply direction than the upper net frame 220 as shown in FIG. 3 to prevent the washing liquid flowing through the water film filter 200 from dripping. Will be prevented.
  • the scattering prevention net 400 of the present invention is located on the top of the water film filter 200, has a single-ply net shape, and attaches most of the scattering water particles generated when the water film of the water film filter 200 ruptures. do. That is, water particles generated when the water film bursts are condensed as water droplets under the scattering prevention net 400 and fall to the water film filter 200 as the formed water droplets increase.
  • the water film filter 200 so that the water film of the water film filter 200 and the water droplets attached to the water film filter 200 cannot form a water film again due to the surface tension of the cleaning liquid. ) And sufficient separation distance must be secured.
  • the anti-scattering net 400 has a shape similar to the net of the water film filter 200, and the washing liquid partially forms a water film on the anti-scattering net 400 so that contaminated air like the water film filter 200 It also has some purification functions.
  • the anti-scattering net 400 minimizes the scattering of the washing liquid in the water film filter 200 so that the washing liquid is splashed inside the main body 100 and becomes dirty and the washing liquid is evaporated and lost.
  • the final filter 600 of the present invention is installed in the air discharge unit 120 and has an air filtration function by itself, while preventing excessive discharge of water particles, and preventing pollutants from entering the main body 100. prevent. That is, the final filter 600 filters the cleaning liquid particles included in the purified air, and finally the cleaning liquid component is adsorbed and the clean air containing appropriate moisture is discharged to the outside.
  • the air inlet 110 of the present invention is for introducing external polluted air, and polluted air pressurized by a blower or the like from the outside of the main body 100 is introduced into the air inlet 110.
  • the air inlet 110 has a shape in which a plurality of inlet pipes are branched at different angles so that the inlet air is uniformly supplied to the lower portion of the water film filter 200.
  • the air inlet 110 of the main body 100 is installed at the bottom as shown in FIG. 1, and the air outlet 120 is installed above the air inlet 110, the air inlet 110 It is preferable that the and the air discharge unit 120 are installed in the same direction in the main body 100. The reason is that the air flow is not linear and rotates inside the main body 100 so that the blown air can be evenly distributed and passed through the water film filter 200, thereby increasing air purification efficiency. In addition, fine water droplets contained in the air purified by the rotation of the air are removed by centrifugal force.
  • the cleaning liquid supply unit 300 of the present invention is a configuration that uniformly supplies the cleaning liquid to the upper portion of the water film filter 200, and the configuration is a supply pipe that is bent in a "a" shape inside the main body 100 as shown in FIG. 4 (310), a distribution pipe (320) connected to the end of the supply pipe (310) and horizontally installed in the width direction, and a plurality of distribution holes (330) formed at regular intervals along the length direction of the distribution pipe (320)
  • the distribution hole 330 is composed of a first row hole portion 330a and a second row hole portion 330b having formation sections of different heights.
  • the first row hole portion 330a of the distribution hole 330 is located below the second row hole portion 330b, but is formed with a diameter smaller than the distribution hole 330 of the second row hole portion 330b.
  • the cleaning liquid supply unit 300 of the present invention due to the difference in supply pressure due to the characteristic of the piping structure, the supply amount varies for each distribution hole 330, so the size of the distribution hole 330 located at the far side from the supply pipe 310 It is desirable to form large.
  • the washing liquid discharge unit 500 of the present invention includes a first drain pipe 510 connected vertically to a lower portion of the drain hole 240 of the water film filter 200, as shown in FIGS. 5 to 6, and the first drain pipe ( A water collecting pipe 520 formed under the 510 and collecting the washing liquid introduced through each drain hole 240, and connected to one side of the water collecting pipe 520 to discharge the washing liquid to the outside of the main body 100. It consists of a second drain pipe (530). In addition, the water collecting pipe 520 is inclined in the direction in which the second drain pipe 530 is formed as shown in FIG. 6 to facilitate drainage.
  • the main body 100 of the present invention is further provided with a transparent window (not shown) that can check the interior, the user can directly visually check the washing liquid supply process, the drainage process, the internal contamination status, and the operation status. , It has the advantage of easy maintenance.
  • an emergency drain 130 is further provided at the lower end of the main body 100 of the present invention to discharge water that has fallen to the lower end of the main body 100 to the outside. Since the emergency drain 130 is not always discharged, a separate valve must be installed.
  • FIG. 7 to 9 show another embodiment of the present invention, wherein a purification space is formed on the left and right sides of the main body 100, respectively, and an air inlet 110 and an air discharge unit 120 are formed in the purification space.
  • the water film filter 200, the washing liquid supply unit 300, the scattering prevention net 400, the purification system of the washing liquid discharge unit 500 is made of a multilayer structure by the partition wall 700, while the upper part of the main body 100
  • An opening and closing door 800 capable of opening and closing a hinge is formed.
  • the opening/closing door 800 includes a rod portion 810 installed inside a pair of opening/closing doors 800, respectively, and connected to the rod portion and according to the pressure of the injected air. It may include a pneumatic cylinder 820 in which the rod unit 810 is forcibly lifted and lowered to perform open/close control. At this time, the pneumatic cylinder 820 may perform pneumatic control through a separate air injection line, but it is more preferable that the pneumatic cylinder 820 communicates with the air inlet 110 provided inside so that automatic control is performed according to the operation of the blower. Do.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

La présente invention concerne un purificateur d'air humide et, plus particulièrement, un purificateur d'air humide qui purifie l'air en faisant passer de l'air pollué dans un filtre à membrane d'eau à mailles fines de sorte que des polluants soient adsorbés sur le filtre à membrane d'eau, et en lavant les polluants adsorbés pour les évacuer vers l'extérieur. La présente invention est caractérisée en ce qu'elle comprend : un corps principal qui comporte un espace de purification en son sein et est pourvu, sur un côté, d'une partie d'entrée d'air et d'une partie de sortie d'air; un filtre à membrane d'eau monté à une inclinaison à l'intérieur de l'espace de purification du corps principal; une partie d'alimentation en liquide de lavage qui est montée au-dessus du filtre à membrane d'eau et fournit de l'eau à une partie supérieure inclinée pour former une membrane d'eau du filtre à membrane d'eau et effectuer un lavage; une maille de prévention de dispersion qui est montée au-dessus du filtre à membrane d'eau pour empêcher la dispersion de particules d'eau; une partie d'évacuation de liquide de lavage qui est montée sur une partie d'extrémité inférieure inclinée du filtre à membrane d'eau, collecte l'eau qui a traversé le filtre à membrane d'eau et évacue l'eau vers l'extérieur; et un filtre final monté sur la partie de sortie d'air. Le filtre à membrane d'eau comprend une maille de membrane d'eau supérieure, une maille de membrane d'eau centrale et une maille de membrane d'eau inférieure, qui sont empilées dans cet ordre et se chevauchent mutuellement, et est fixé par des cadres de maille supérieur et des cadres de maille inférieurs formés sur les bords. Une pluralité de trous d'évacuation sont formés de façon à traverser le cadre de maille supérieur et le cadre de maille inférieur dans la direction de la partie d'évacuation de liquide de lavage, et la maille de membrane d'eau centrale est constitué d'un matériau ou a une forme qui permet à la membrane d'eau centrale de présenter une capacité de collecte d'eau plus élevée que les mailles de membrane d'eau supérieure et inférieure.
PCT/KR2020/007387 2019-06-21 2020-06-08 Purificateur d'air humide Ceased WO2020256322A1 (fr)

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KR1020190073989A KR102121466B1 (ko) 2019-06-21 2019-06-21 습식 공기청정기

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CN113188222A (zh) * 2021-03-25 2021-07-30 刘小丽 一种可调式空气污染过滤设备
CN113983581A (zh) * 2021-11-02 2022-01-28 珠海格力电器股份有限公司 一种厨房空调

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KR102325050B1 (ko) * 2021-03-26 2021-11-11 류이하 가습 공기청정기
KR102512362B1 (ko) 2021-06-03 2023-03-22 임대혁 습식 공기청정기
KR102521924B1 (ko) * 2022-07-28 2023-04-14 (주)유나 실내 공기 정화장치

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