KR20080001082U - Ventilation unit with wet air purifier - Google Patents

Abstract

The present invention relates to a ventilation unit, and more particularly, a wet air purifying device which exchanges heat by crossing outdoor air and indoor air, and adsorbs and removes dust or harmful substances contained in outdoor air by fine water droplets. It relates to a ventilation unit.

Wet air purifying device constituting the ventilation unit according to the present invention, the lower portion is sealed to store a certain amount of water and the case formed with inlets and outlets on both sides so that outdoor air can pass; A tap water supply pipe connected to the tap water to supply tap water into the case; A contaminated water discharge pipe connected to the sewage pipe so as to discharge the contaminated water stored in the case; A nozzle tube provided to supply tap water into the case and spray fine droplets into the introduced outdoor air to form a fine droplet filter membrane; A water film forming plate installed inside the case to be inclined at an angle in a vertical direction so that the water droplets injected from the nozzle tube form a filtration membrane; An induction plate installed inside the case in parallel to the water film forming plate and maintaining a predetermined distance from the water film forming plate to prevent the water droplets from escaping to the discharge port and to discharge only the air to the discharge port; And a water circulation pump installed to continuously circulate the washing water stored in the case through the nozzle tube.

Ventilation unit, ventilation unit, air cleaner, water drop, wet, water film forming plate

Description

Ventilation unit with wet air purifier

1 is a schematic configuration diagram showing a general ventilation unit according to the prior art,

2 is an installation view showing a state in which the ventilation unit equipped with a wet air purifier according to the present invention is installed on the ceiling,

Figure 3 is a perspective view showing a ventilation unit equipped with a wet air purifying apparatus according to the present invention,

Figure 4 is a perspective view showing a wet air purifying apparatus according to the present invention,

5 is a cross-sectional view showing a wet air purifying apparatus according to the present invention.

*** Description of the symbols for the main parts of the drawings ***

1: ventilation unit 2: housing

10: wet air purifier 11: fine droplet filtration membrane

12: case 13: nozzle tube

14: partition wall 17: contaminated water reservoir

19: washing water reservoir 22: inlet

23: outlet 24: water film forming plate

25: induction plate 29: UV lamp

44: contaminated water discharge pipe 45: discharge pipe control valve

50: control unit 65: supply pipe control valve

66: tap water supply pipe 75: pollution meter

85: circulation pipe control valve 86: water circulation pump

      88: washing water circulation pipe 99: heater

The present invention relates to a ventilation unit, and more particularly, a wet air purifying device which exchanges heat by crossing outdoor air and indoor air, and adsorbs and removes dust or harmful substances contained in outdoor air by fine water droplets. It relates to a ventilation unit.

In general, the air in an enclosed space increases the concentration of carbon dioxide over time by the breathing of life. Therefore, in an enclosed room such as an office or a house, a ventilation device (or a ventilation system, a ventilation unit) (hereinafter referred to as a 'ventilation unit') that periodically supplies fresh air from outside is contaminated by circulating indoor air. An air purifier or air purifier (hereinafter referred to as the "air purifier") that removes material shall be used.

That is, as a method for reducing indoor air pollution, a ventilation method for largely exhausting indoor air contaminated through a ventilation unit and supplying fresh air to the room, and pollution contained in indoor air using an air purifier. There is an air purification method to remove material.

However, since the general air purifier continuously recycles air in a limited space, there is a disadvantage in that carbon dioxide in the indoor air increases and causes oxygen deficiency. In addition, such an air purifier has a remarkable difference in air purifying ability according to the performance of a filter for purifying contaminated air, and furthermore, there is a problem in that it may increase the pollution of indoor air rather than replacing the filter in a timely manner. . That is, there is a limit in solving indoor air pollution with only the air purifier.

Accordingly, recently, a ventilation unit capable of performing both ventilation and air purification functions has been developed. That is, the ventilation unit equipped with such an air purifier additionally installs an air purifying device such as a filter, an ion generator, a plasma generator, etc. in the conventional ventilation unit to purify outdoor air introduced into the room or circulate and purify the indoor air. It is configured to do so.

As is well known, the heat exchange type ventilation unit can prevent the rapid rise or fall of the indoor temperature as outdoor air supplied to the indoor air is primarily heat exchanged with indoor air and then introduced into the room when the indoor air is cooled or heated. . However, there is a problem that indoor air is polluted when outdoor air contaminated with fine dust or volatile organic compounds is introduced into the room while supplying outdoor air to the room.

In consideration of this point, Korean Patent Publication No. 10-600621 discloses a functional air purifying filter system for a heat exchanger that emits negative ions and far infrared rays, and has antibacterial and deodorizing functions and a heat purifier for an air purifier including the same. Present the ventilation unit equipped.

That is, as shown in Figure 1, the conventional design provides an air purification filter system for a heat exchanger that can filter various harmful substances introduced with outdoor air, deodorization and antibacterial function, as well as anion. To this end, the conventional design is a heat exchanger for exchanging the heat of the outside air and the air discharged to the outside, a plurality of filters and plasma generators disposed in the outdoor air inlet, anion generator installed behind the heat exchanger And the like. That is, the prior art employs a filtration filter such as a ceramic filter and an activated carbon filter to remove contaminants contained in outdoor air.

As such, the ventilation unit equipped with the air purifier is usually provided with various filters for filtering contaminants on the outdoor air supply passage. However, these filters filter and accumulate dust and contaminants and must be replaced or cleaned periodically.

On the other hand, since the ventilation unit is installed in a high place such as a ceiling, it is difficult for general users to access. Therefore, professional help is required to replace or clean the filter of the ventilation unit. In addition, since the ventilation unit is covered by a ceiling finishing plate or the like and cannot be seen from the outside, it is not easy to check the filter contamination or its replacement time. For this reason, the filter is often left without changing for a long time. In this case, bacteria in the outdoor air introduced are multiplied by the filter, which threatens the health of the user who uses the ventilation unit. In addition, when the contaminants accumulate in the filter, there is a problem that the blowing loss increases.

The present invention has been made to solve the problems of the prior art, the main object of the present invention is to supply or discharge the cleaning water used in the wet air purifier directly through the water tap and sewage pipe to always maintain the air purification function without changing the filter It is to provide a ventilation unit equipped with a wet air purifier.

Another object of the present invention is to construct a wet air purifying apparatus that does not require filter replacement, by forming a water film forming plate and a guide plate to form a water film on the surface thereof to increase the filtration efficiency, and by spraying water in the nozzle tube. It is to provide a wet air purifier that can perform a function of shielding the water contained in the reservoir in the case does not go to the outlet.

As a means for achieving the above object of the present invention, the ventilation unit with a wet air purifying device according to the present invention, the housing and the outside air supply passage and the internal exhaust exhaust passage partitioned by the partition wall, on one side of the air supply passage The installed air supply fan, the air exhaust fan installed on one side of the air exhaust passage, and the heat exchanger is installed at the intersection of the air supply air passage and the internal air exhaust passage and heat exchange between the indoor air and the outdoor air through the heat exchange membrane In the ventilation unit is provided with a wet air purifying device configured to include, and a wet air purifying device is installed to form a fine droplet filter membrane on the outside air supply passage, the wet air purifying device is a predetermined amount of water The bottom is sealed for storage and the inlet and outlet are formed on both sides to allow outdoor air to pass through. Su; A tap water supply pipe connected to the tap water to supply tap water into the case; A contaminated water discharge pipe connected to the sewage pipe so as to discharge the contaminated water stored in the case; A nozzle tube provided to supply tap water into the case and spray fine droplets into the introduced outdoor air to form a fine droplet filter membrane; A water film forming plate installed inside the case to be inclined at an angle in a vertical direction so that the water droplets injected from the nozzle tube form a filtration membrane; An induction plate installed inside the case in parallel to the water film forming plate and maintaining a predetermined distance from the water film forming plate to prevent the water droplets from escaping to the discharge port and to discharge only wet air to the discharge port to the outside; And a water circulation pump installed to continuously circulate the washing water stored in the case through the nozzle tube.

The water film forming plate is characterized in that the bottom portion is installed at a predetermined interval spaced from the water level of the contaminated water reservoir stored in the case to enable the air flow to the outlet, the induction plate is the outlet from the water film forming plate Spaced apart a predetermined distance in the direction to be installed in parallel with the water film forming plate, and the bottom portion is installed at a predetermined distance from the bottom surface of the case. And, the lower portion of the guide plate to be locked under the water surface of the contaminated water reservoir stored in the case.

And at one end of the tap water supply pipe is installed the nozzle pipe, the other end is connected to the tap water to supply the tap water, the nozzle pipe is installed in close proximity to the upper portion of the water film forming plate and a plurality of nozzle holes perforated on the outer peripheral surface The tap water supply pipe is provided with a supply pipe control valve for controlling the flow of tap water.

In addition, the nozzle tube is located in the horizontal direction by the width of the water film forming plate horizontally close to the upper portion of the water film forming plate, the nozzle hole is the direction facing the surface so as to spray tap water to the surface of the inclined water film forming plate To be formed on the lower surface of the nozzle tube.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of a ventilation unit equipped with a wet air purifying apparatus according to the present invention.

First, the configuration and operation of the ventilation unit with a wet air purifying apparatus according to the present invention will be described briefly as follows. 2 is an installation view showing a state in which the ventilation unit with a wet air purifier according to the present invention is installed on the ceiling, Figure 3 is a perspective view showing a ventilation unit with a wet air purifier according to the present invention.

As shown in the drawing, the ventilation unit 1 equipped with the wet air purifying apparatus according to the present invention includes a housing 2 in which an outside air supply passage 3 and an inside air exhaust passage 5 are partitioned by partition walls 4. And an outdoor air supply fan 6 installed at the inlet side of the external air supply passage 3 to induce the flow of outdoor air, and installed at the inlet side of the internal air exhaust passage 5 to induce the flow of indoor air. It is installed to cross the inside of the internal air exhaust fan (8) and the housing (2), the outdoor air supply passage (3) and the internal air exhaust passage (5) to cross the diagonal direction and at the same time the outdoor air and indoor air Forming a heat exchanger (7) consisting of a plurality of heat exchange membranes arranged to cross heat exchange and a fine water droplet filtration membrane (11) formed on the outside air supply passage (3) and formed by spraying fine water droplets; , Outdoor air from outside It is configured to include a wet air purifier (10) for supplying the indoor air cleanly purified by adsorption and removal of dust or contaminants contained in the air.

Therefore, the ventilation unit 1 equipped with the wet air purifying apparatus 10 according to the present invention, when power is applied to the bet exhaust fan 8, the indoor air to the bet exhaust passage 5 through the bet air inlet 52 After being introduced, it is discharged to the outside through the exhaust air passage of the heat exchanger 7 through the air outlet 54. At the same time, when power is supplied to the outside air supply fan 6, the outdoor air enters the wet air purifier 10 through the outside air inlet 32 and passes through the fine water droplet filtration membrane 11 made of water droplets that are finely sprayed. The dust or contaminants contained therein are removed and then introduced into the room through the air supply port 34 through the air supply passage of the heat exchanger 7. At this time, the indoor air and the outdoor air passing through the heat exchanger 7 is exchanged with the heat exchange membrane therebetween.

Next, a wet air purifying apparatus, which is a main part of the present invention, will be described with reference to the drawings. Figure 4 is a perspective view showing a wet air purifier according to the present invention, Figure 5 is a cross-sectional view showing a wet air purifier according to the present invention.

As shown, the wet air purifying apparatus 10 according to the present invention is installed on the outside air supply passage 3 adjacent to the outside air inlet 32. The wet air purifying apparatus 10 includes a tap water supply pipe 66 connected to a tap water (not shown) and a contaminated water discharge pipe 44 connected to a sewage pipe (not shown). Therefore, the three purified water required for air purification is directly supplied from the tap water through the tap water supply pipe 66, the contaminated water containing contaminants by the air purification action to be discharged directly to the sewage pipe through the polluted water discharge pipe (44). Can be.

In addition, the wet air purifying apparatus 10 according to the present invention separates dust and harmful substances contained in the air by using tap water, and the lower part is sealed to store a predetermined amount of tap water and allows outdoor air to pass therethrough. A case 12 having both inlets 22 and outlets 23 formed on both sides thereof, and a nozzle tube 13 installed to supply tap water into the case 12 and to spray fine water droplets into the introduced outdoor air. And, the water film forming plate 24 is installed in the case 12 inclined at an angle so that the water droplets sprayed from the nozzle tube 13 can form the filter membrane 11, and the water tank 17 in the case 12 ) Is installed in parallel with the water film forming plate 24 to prevent water from flowing out to the outlet 23 and to discharge only the air to the outlet 23 to be discharged to the outside. Dopant is configured to include the 25 and the casing 12 water circulation pump 86 is installed so as to continuously cycle through the number of the accumulated water through the cleaning nozzle pipe 13 within.

The film forming plate 24 has a bottom portion spaced apart from the level of the contaminated water reservoir 17 stored in the case 12, and the guide plate 25 is separated from the film forming plate 24. It is spaced apart a predetermined distance in the direction of the discharge port 23 is installed in parallel with the water film forming plate 24, the bottom portion is installed to be spaced apart from the bottom surface of the case 12 by a predetermined distance. In this case, the water film forming plate 24 and the guide plate 25 may be made of a metal having a sterilizing ability such as copper or made of titanium oxide metal fiber.

The nozzle pipe 13 is installed at one end of the tap water supply pipe 66, and a water tap is connected to the other end of the tap water supply pipe, and the nozzle pipe 13 is close to the upper portion of the water film forming plate 24. A plurality of nozzle holes 132 are drilled on the outer circumferential surface thereof, and the tap water supply pipe 66 is provided with a supply pipe control valve 65 for controlling the flow of tap water.

The nozzle tube 13 is inserted into the nozzle connecting rod 131 on one side of the upper portion of the case 12 so as to be located in the horizontal direction by the width of the water film forming plate 24 horizontally close to the top of the water film forming plate 24. It is preferable to install. If the nozzle connecting rod 131 is installed in the center of the case 12 through the inlet 22, the nozzle tube 13 may be branched and symmetrically extended from the end of the connecting rod. The nozzle hole 132 is formed on the lower surface of the nozzle tube 13 in a direction opposite to the surface so that tap water can be sprayed onto the surface of the water film forming plate 24 installed to be inclined in the case 12. This is preferred.

In the wet air purifier 10 of the present invention, the lower part of the case 12 is divided into a contaminated water reservoir 17 and a washing water reservoir 19 through a partition wall 14 having a predetermined height. The contaminated water reservoir 17 stores dust and contaminants that are dropped along with water and fine water droplets injected into the air from the nozzle tube 13. At this time, the heavy particles of the contaminants dropped to the contaminated water reservoir 17 sinks to the bottom of the contaminated water reservoir 17 and the light material floats on the water surface.

The washing water reservoir 19 is a place where the washing water to be supplied to the nozzle tube 13 is stored, from the contaminated water of the contaminated water reservoir 17 through a screen 15 or the like installed on the separation wall 14. Entering with contaminant removed. Therefore, the water levels of the contaminated water reservoir 17 and the washing water reservoir 19 are the same.

Then, a contaminated water discharge pipe 44 for discharging contaminated water is connected to the bottom of the contaminated water reservoir 17, and a discharge pipe control valve 45 for controlling discharge of contaminated water is connected to the contaminated water discharge pipe 44. Is installed. The discharge pipe control valve 45 is electrically connected to a controller 50 to be described later as a solenoid valve. One end of the contaminated water discharge pipe 44 is connected to a sewage pipe (not shown) as described above.

On the other hand, the control unit 50 is installed on the outer surface of the housing 2 of the ventilation unit 1, the overall control of the ventilation unit 1 and the wet air purifier (10). To this end, the controller 50 has a microprocessor in which software is embedded and a power supply unit for supplying power. Also preferably, the control unit 50 is provided with a remote receiving unit 51 so that a user can remotely control the remote controller.

A washing water circulation tube 88 for circulating the washing water into the nozzle tube 13 is connected to the bottom of the washing water reservoir 19, and the washing water is pumped on the washing water circulation tube 88. A water circulation pump 86 for pumping the nozzle pipe 13 and a circulation pipe control valve 85 for controlling the flow of the washing water are provided.

One end of the washing water circulation pipe 88 is connected to the tap water supply pipe 66 through the T-type connecting pipe 83. In addition, the circulation pipe control valve 85 is electrically connected to the control unit 50 as a solenoid valve, and the water circulation pump 86 is also connected to the control unit 50. In addition, the tap water supply pipe 66 is provided with a supply pipe control valve 65 for controlling the flow of tap water, the supply pipe control valve 65 is connected to the control unit 50.

On the other hand, the bottom surface of the contaminated water reservoir 17 is formed with a discharge port 72 formed concave downward to discharge the sediment or suspended matter well, the contaminant is formed on the bottom surface of the washing water reservoir 19 nozzle tube ( 13, the inlet port 92 is provided with a screen (or filter) for blocking the inflow to the upper convex.

In addition, the contamination water reservoir 17 is provided with a pollution degree measuring device 75 for measuring the contamination (turbidity) of the contaminated water, and the water level measuring instrument 95 for measuring the level of the washing water in the washing water reservoir 19. ) Is installed. The pollution level measuring unit 75 and the water level measuring unit 95 are connected to the control unit 50, respectively.

Hereinafter, the operation of the wet air purifying apparatus 10 according to the present invention will be described in detail. First, when the water level measured by the water level meter 95 is lower than the reference water level, the controller 50 opens the supply pipe control valve 65 to receive tap water from the water pipe. The tap water is supplied only by the water pressure in the water pipe, and when the water pressure is low, it is supplied using a separate pump. The water supplied through the tap water supply pipe 66 is supplied to the contaminated water reservoir 17 through the nozzle tube 13. At this time, the contaminated water reservoir 17 is usually empty.

In addition, when the pollution degree measured by the pollution degree meter 75 exceeds the reference value, the controller 50 opens the discharge pipe control valve 45 to discharge the polluted water to the sewage pipe. In this case, the discharge pipe control valve 45 may be opened by the pollution degree measuring device 75 or by a timer 52 embedded in the controller 50. In addition, the discharge pipe control valve 45 may be closed by the water level meter 95 or by a timer 52 built in the control unit 50. That is, the discharge pipe control valve 45 may be opened and closed periodically to discharge the polluted water.

Subsequently, when the external air supply fan 6 of the ventilation unit 1 according to the present invention is operated, the controller 50 opens the circulation pipe control valve 85 and operates the water circulation pump 68. Then, the washing water of the washing water reservoir 19 is pumped into the nozzle tube 13. At this time, the discharge pipe control valve 45 and the supply pipe control valve 65 maintains a closed state.

Then, the high pressure washing water pumped into the nozzle tube 13 forms fine water droplets while passing through the nozzle hole 132. The fine water droplets form the filtration membrane 11 on the surface of the water film forming plate 24. Since the filtration membrane 11 is thicker, it is advantageous for air purification, so that the filtration membrane 11 is formed as thick as possible within the range not exceeding the contaminated water reservoir 17. To this end, it is preferable to limit the interval between the nozzle tube 13 and the water film forming plate 24 to a predetermined distance or less.

In addition, the outdoor air sucked by the air supply fan 6 moves upward in the case 12 but is shielded by the water film forming plate 24 and flows downward. Passes through the droplet filter membrane (11). At this time, the dust or contaminants contained in the outdoor air are adsorbed by contact with the fine water droplets forming the filtration membrane 11. And contaminants adsorbed in the water droplets descend with the water droplets and are separated from the outside air. Outside air filtered by contaminants flows into the space between the bottom surface of the water film forming plate 24 and the water surface of the water tank 17, and then rises again, and the space between the top surface of the guide plate 25 and the ceiling of the case 12. Toward the outlet 23 through the discharge port 23 is discharged to the outside again. The guide plate 25 serves to prevent water droplets injected while inducing air flow through the outlet 23.

On the other hand, the amount of water corresponding to the washing water discharged from the washing water reservoir 19 is supplied by filtering the contaminated water stored in the polluted water reservoir (17). That is, the screen 15 is installed on the separation wall 14 to be spaced apart from the bottom by a certain height so that the precipitated contaminants do not flow into the washing water reservoir 19. In addition, the separation wall 14 is provided with a floating decanter (not shown) installed to rise according to the level of the contaminated water and the washing water inlet is located below the water so that the floating contaminants are transferred to the washing water reservoir 19. Do not enter.

As such, the wet air purifier 10 according to the present invention adsorbs and removes contaminants contained in outdoor air by using fine water droplets, such as fine sludge, volatile organic compounds, and odorous substances, which are difficult to remove with a conventional filter. Not only can it remove contaminants, but there is no need to change the filter because no mechanical filters are used. In addition, since the tap water supplied from the tap water is used as the washing water and the contaminated water can be discharged directly through the sewer pipe, the user does not need to open the ceiling and access the ventilation unit. In addition, the present invention is very easy to manage because the tap water and polluted water is automatically supplied and discharged by the timer of the water level meter and pollution meter or control unit. In other words, the present invention can reduce both the cost and effort of the filter replacement.

In addition, it is preferable to further configure a heater 99 in the reservoir to prevent the washing water from freezing by radiating heat when the outdoor air flowing into the wet air purifier 10 is lowered below the freezing point. The heater 99 is formed by inserting the heating wire inside the metal cover with a coated nichrome wire or copper wire having a thickness corresponding to a desired heating temperature, and is mounted on the inner bottom of the case 12 in a snail shape. The heater 99 to be mounted may use various types of heaters to increase the water temperature of the water contained in the reservoir 17 without being limited to the above structure. And the heater is preferably operated automatically by the operation of the control unit 50 by the temperature sensor.

 As described above, the wet air purifier 10 of the present invention can obtain various excellent effects because it removes contaminants using fine water droplets. However, since the inside of the case 12 is kept in a humid state for a long time, an environment in which bacteria introduced with the outdoor air propagate is created. Therefore, in order to solve this problem, it is preferable to install one or more ultraviolet lamps 29 in the case 12 to kill bacteria or viruses in air or water.

In addition, a photocatalyst such as titanium oxide (TiO ₂ ) or a composite metal oxide such as ZnO, CdS, ZrO ₂ , SnO _2, etc. may be formed on the inner wall of the case 12 and the surfaces of the water film forming plate 24 and the guide plate 25. It is desirable to improve the sterilization ability by coating the low temperature catalyst. Therefore, by activating the photocatalyst coated with the ultraviolet lamp 29, it is possible to supply clean outdoor air by oxidatively decomposing bacteria, harmful substances and odorous substances contained in the outdoor air.

As described above, the ventilation unit equipped with the wet air purifying apparatus according to the present invention is indoors because it removes the pollutants contained in the outside or inside air by using the excellent pollutant removal ability of the fine water droplets and supplies them to the room. There is an effect that can prevent the pollution of air.

In addition, the present invention uses tap water supplied directly from the tap water as the washing water, and water contaminated by air purification is discharged directly to the sewer pipe, thus eliminating cumbersome work such as filter replacement and cleaning, and requiring a professional's help. Because it can reduce the manpower and cost.

In addition, the present invention in the construction of a wet air purifying device that does not require filter replacement, by forming a water film forming plate and a guide plate to form a water filtration membrane on the surface of the water film forming plate to increase the filtration efficiency, and in the nozzle tube It is possible to perform a function of shielding the flow of water so that water droplets sprayed during water injection or water contained in the reservoir does not escape to the outlet.

Claims (7)

A housing in which the outdoor air supply passage and the internal air exhaust passage are partitioned by a partition wall, an outdoor air supply fan installed on one side of the air supply passage, an internal air exhaust fan provided on one side of the internal air exhaust passage, and the external air supply passage and the internal air exhaust passage A wet type comprising a heat exchanger installed at an intersecting portion and configured to exchange heat between indoor and outdoor air through a heat exchange membrane, and a wet air purifier installed to form a fine droplet filter membrane on the outside air supply passage. In the ventilation unit equipped with an air purifier, The wet air purifier includes a case in which a lower part is sealed to store a predetermined amount of water and inlets and outlets are formed at both sides to allow outdoor air to pass therethrough; A tap water supply pipe connected to the tap water to supply tap water into the case; A contaminated water discharge pipe connected to the sewage pipe so as to discharge the contaminated water stored in the case; A nozzle tube provided to supply tap water into the case and spray fine droplets into the introduced outdoor air to form a fine droplet filter membrane; A water film forming plate installed inside the case to be inclined at an angle in a vertical direction so that the water droplets injected from the nozzle tube form a filtration membrane; An induction plate installed inside the case in parallel to the water film forming plate and maintaining a predetermined distance from the water film forming plate to prevent the water droplets from escaping to the discharge port and to discharge only the air to the discharge port; And a water circulation pump installed to continuously circulate the washing water stored in the case through the nozzle tube. The method of claim 1, The water film forming plate is provided with a wet air purifier, characterized in that the bottom portion is installed at a predetermined interval spaced from the surface of the contaminated water reservoir stored in the case to enable the air flow to the outlet. The method of claim 1, The bottom surface of the guide plate is spaced apart from the bottom of the case by a predetermined interval to allow the flow of water in the reservoir, the lower portion of the guide plate to wet under the water surface of the contaminated water reservoir stored in the case Ventilation unit with purifier. The method of claim 1, One end of the tap water supply pipe is provided with the nozzle tube, the other end is connected to the tap water to supply tap water, the nozzle tube is installed in close proximity to the upper portion of the water film forming plate and a plurality of nozzle holes perforated in the lower surface of the nozzle tube And the tap water supply pipe is provided with a wet air purifier, characterized in that a supply pipe control valve is installed to control the flow of tap water. The method according to claim 1 or 4, The nozzle tube is positioned in the horizontal direction close to the upper portion of the water film forming plate in the horizontal direction by the width of the water film forming plate, the nozzle hole in the direction opposite to the surface so as to spray tap water to the inclined water film forming plate surface Ventilation unit with a wet air purifier, characterized in that formed on the nozzle tube lower surface. The method of claim 1, One or more ultraviolet lamps are provided in the case, and a low temperature catalyst made of a photocatalyst such as titanium oxide (TiO ₂ ) or a composite metal oxide such as ZnO, CdS, ZrO ₂ , SnO ₂ , or the like is formed on the water film forming plate and the induction plate surface. Ventilation unit with a wet air purifier, characterized in that the coating. The method of claim 1, Ventilation unit with a wet air purifier, characterized in that one or more heaters are installed inside the case.

Images