JP2001170434A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner capable of efficiently and sufficiently removing and eluting the dust and the harmful gas, etc. contained in air. SOLUTION: The air sucked to an air chamber 30 from an air suction port 12a is blowed on the water surface Ws of a water receiver 20 from an open part 31, then the air is passed through a narrow gap between the lower end part 30a formed in rugged continuous shape and the water surface in turbulent flow, and the air becomes eddy flow at a slightly wide gap formed by a baffle plate 53a erected from underwater at the lower part outside of the air chamber and at a narrowed upper part gap, and moisture is involved in the turbulent flow during that time and sufficient agitating and contacting state of the air and the moisture is obtained and the dust and the harmful gas are sufficiently removed. Moreover, the air is washed with the water stream and water mist uniformly sprinkled by a sprinkler member 41 while rising in a washing tower 10 and residual dust and the harmful gas are removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reducing dust and harmful gases in a compost plant for composting air containing dust or harmful or odorous gas, for example, manure of livestock, or in a galvanizing plant. The present invention relates to a wet air purification device that removes or elutes dust or harmful gas from air generated in a building at the same time to purify the air.

[0002]

2. Description of the Related Art As a device for removing dust in the air, a dry filter or the like is generally used, but a device for removing such harmful gas from air containing harmful gas or harmful mist is used. For example, in the case of a compost plant, ammonia gas of 500 to 1500 PPM is generated during manure fermentation, and a large amount of hydrochloric acid gas, ammonium chloride gas, and zinc oxide dust are generated in a hot-dip galvanizing plant. There is a wet filtration device. The wet apparatus captures harmful gases and the like by passing through a water shower using a watering nozzle, but the removal performance is incomplete, at most about 70 to 80%. In order to improve the performance, it is necessary to make the spray of the shower fine and generate a large amount of water mist, but since the diameter of the watering nozzle is small, clogging frequently occurs, and eventually the expected performance can be exhibited. There was no problem. Therefore, if the watering area is increased, there is a disadvantage that the apparatus becomes large. FIG. 7 shows an example of an apparatus for solving such a drawback disclosed in Japanese Patent Publication No. 6-70505.

[0003] This device (a water-cleaning type air-cleaning and disinfecting device. The symbol in FIG. 7 is different from that in the publication) is a device for storing water W in a lower portion of a cylindrical washing tower 1. Receiving tank 2
A plurality of watering nozzles 3 for forming a water shower S and an eliminator 4 for dropping are provided immediately above the nozzles 3. Further, a blower 5 for sending outside air containing dust into the washing tower 1, and an air from the blower 5 being introduced into the washing tower 1 to form a water surface W in the water receiving tank 2.
and an air blowing duct 6 that blows toward s. The air outlet duct 6 has an opening 6a having a linear edge shape and is arranged so as to face the water surface Ws. The water level of the water surface Ws is determined by the lower edge 6b of the air blowing duct 6 located around the opening 6a and the water surface Ws.
The water level is adjusted so that the distance from the air outlet duct 6 is smaller than the outer diameter of the air blowing duct 6.

According to the apparatus having the above-described structure, the air containing dust blown out from the opening 6a of the air blowing duct 6 is
The water surface Ws of the water receiving tank 2 is struck vigorously, and first, coarse particles of dust in the air are taken into the water W of the water receiving tank 2 and removed. Assuming that this is primary collection, since the air A that is going to pass between the lower edge 6b and the water surface Ws after the primary collection hits the water surface Ws, the dynamic pressure decreases and the static pressure increases. When ascending in the washing tower 1, the velocity distribution of the air flow is made uniform. Therefore, the air A is
When passing through the water shower S spouted from the water spray nozzle 3, fine dust that could not be removed by the primary collection is efficiently secondarily collected by the water droplets of the water shower S. The fine dust in the air after the secondary collection is captured and removed together with the water droplets by the eluminator 4.
Thus, by the primary collection and the subsequent secondary collection,
The air from which coarse dust and fine dust are sequentially removed is
The air is discharged from the upper portion of the washing tower 1 as dust-free air.

[0005]

However, according to the above-mentioned apparatus, if the air taken into the washing tower 1 contains a large amount of dust and harmful gas, both the primary collection and the secondary collection are performed. There is a problem that the removing action is not sufficient and harmful gases and the like remain in the air discharged from the washing tower 1. That is, first, the problem regarding the primary collection is that the air sucked into the washing tower 1 is blown from the opening 6a of the air blowing duct 6 toward the water surface Ws,
The water surface Ws is hit, and then it comes out from between the lower edge 6b and the water surface Ws. However, since the lower edge 6b is formed in a straight line, and the gap between the opening and the water surface is maintained at a substantially uniform interval. , These series of air flows smoothly,
There is a problem that the action of hitting s is insufficient, and furthermore, it passes through the gap as it is, so that dust and harmful gas are not always sufficiently captured at the time of primary collection.

Next, in the secondary collection by the above device, the first
In addition, since a plurality of water spray nozzles 3 are used, the water showers S formed by the adjacent water spray nozzles 3 interfere with each other and collide with each other, and as a whole, a water shower S suitable for dividing the amount of water to be supplied is suitable. Is difficult to form. Secondly, when the watering nozzle 3 is used, the control of the water shower S largely depends on the change in the supply amount of water, so that delicate control cannot be performed. In particular, a water shower S that can provide a sufficient effect cannot be configured with a small amount of water. Thirdly, since the water spouting nozzle 3 itself and the water outlet are easily clogged, frequent maintenance and inspection are required, and the work is complicated. As described above, since a plurality of water spray nozzles are used, an efficient water shower S cannot be formed sufficiently, and the capture of fine dust and the removal of harmful gas during secondary collection are not sufficient. There is a problem that can not be done.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and sufficiently removes various kinds of dust from coarse dust to fine dust in the air. It is an object of the present invention to provide an air purifying device capable of purifying air by efficiently dissolving harmful mist into a liquid efficiently.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention comprises a washing tower having an air inlet and an air outlet, and includes dust or harmful or odorous gas sucked from the air inlet. In an air purifying apparatus for purifying air by a liquid in a washing tower until the air is discharged from an air outlet, a water receiving tank is disposed at a lower portion of the washing tower, and a lower end of an air chamber communicating with an air inlet. To approach the upper side of the liquid level of the water receiving tank, the opening is formed opposite to the opening, the lower end of the opening is formed as a continuous concave and convex shape, and the air is purified by the liquid while passing through the gap. And an air purification device. According to the present invention, a more preferable effect is exerted by using a device for sucking air to be purified from the suction port into the washing tower, which has become negative pressure, by sucking the air from the outlet port with a blower or the like. The air sucked into the washing tower is blown onto the liquid surface from the opening of the air chamber facing above the liquid surface, and then is drawn out from the narrow gap between the lower end portion formed in irregularities and the liquid surface. . The air passing through the gap between the irregularities becomes an airflow earlier at the convex portion and later at the concave portion, and the direction of the flow also changes irregularly and becomes turbulent. As a result, while the liquid surface is beaten and disturbed, the liquid is sucked into the turbulent flow that is blown off, forming a liquid mist near the liquid surface and causing a stirring action with the turbulent gas, thereby causing dust in the air to be generated. ,
Toxic gases and the like are efficiently dissolved in the liquid and removed. The liquid may be maintained in a state capable of absorbing harmful gases and the like, and used while purifying as needed, such as by adding the liquid before or at the time when the harmful gases or the like become saturated or by circulating and filtering the liquid. do it.

[0009] The uneven lower end portion of the opening is formed in a direction in which the unevenness is directed toward the liquid surface of the water receiving tank, that is, in a direction in which the unevenness can be viewed when viewed from the lateral direction. It is desirable to make the air sucked out into strong turbulence. The unevenness is in the direction toward the inside of the opening,
That is, turbulence can be generated even when the opening is formed in a direction in which the unevenness can be seen when viewed from above. The concave and convex shape is preferably formed by a repetitive shape based on a trapezoidal shape, a triangular shape, or an arc-shaped wave shape, but may be any other appropriate shape.

According to the present invention, a baffle plate is provided outside the lower part of the air chamber together with the above structure, and the baffle plate receives a gap wider than the gap between the lower end of the air chamber and the water surface outside the air chamber. It is also characterized in that the water tank has a configuration in which the water tank is erected from below the water surface, at least the upper part thereof is curved, and the upper end part is made closer to the air chamber to narrow the gap. in addition,
With a configuration in which another baffle plate curved in an umbrella shape is installed so as to close the gap above the air chamber and the lower outer baffle plate and change the outflow direction of air from the upper side to the outer side of the baffle plate. It is also a feature. The turbulent air sucked into the slightly wide gap formed by the baffle plate from the narrow gap between the concave and convex continuous lower end of the opening and the liquid surface is sucked outward from the curved narrowed upper part. In the baffle plate, a vortex flow is generated, which undulates the liquid surface and sucks up the liquid along the baffle plate to form a liquid mist, thereby creating a vortex state of air and liquid in the entire gap in the baffle plate. In a stirring state, 95% or more of dust and harmful gas in the air are taken into the liquid and purified. Another baffle plate placed in an umbrella-like configuration at the top promotes this vortex formation and diffuses the sucked air into the washing tower.

[0011] The present invention also includes a washing tower having an air inlet and an air outlet, and is provided with a function of discharging air containing dust or harmful or odorous gas from the air inlet until the air is discharged from the air outlet. In the air purifying apparatus for purifying with the liquid in the washing tower, a water sprinkling member which is rotationally driven by a driving means is installed in the washing tower, and the sprinkling member is substantially horizontally while receiving the washing liquid supplied by the water supply member. A rotating plate that rotates in the shape direction, a plurality of watering blades radially arranged on the rotating plate, and a regulating plate installed so as to cover at least a part of the upper part of the watering blade are formed. The air purifying device is also characterized by having a configuration in which air is purified by contacting air with a water shower generated in the entire washing tower by a water spray member.

According to the present invention, the liquid supplied to the sprinkling member by the water supply member is held on the rotating plate, and the centrifugal force is effectively applied by the radial spraying blade rotating with the rotating plate, so that the liquid is substantially horizontally moved. Sprinkled towards. According to this, the sprinkler shower does not interfere and collide with each other, the nozzle is not clogged, and it is easy to finely change the rotation speed of the sprinkler member by the driving means. The water shower can be delicately controlled. Also, by appropriately combining the amount of liquid to be supplied and the number of rotations of the watering member,
It is possible to handle a wide range from when the amount of air to be treated is small to large. If a regulating plate is provided,
It is possible to control the upward diffusion state of the water droplet to which the centrifugal force is applied by the rotating plate or the water spray blade, thereby increasing the water spray efficiency and obtaining a dense water shower. The purifying action of the water spraying member is the same in a device in which air is sucked to make the inside of the washing tower negative pressure, and a device in which air is sent to make the inside of the washing tower positive pressure.

Still further, the present invention provides the above-mentioned air chamber having an opening on a liquid surface of a water receiving layer in a lower part of a washing tower having an air suction port in a lower part and an air outlet in an upper part. By installing the baffle plate and disposing the rotationally driven sprinkling member above the baffle plate, the air purifier may be configured to perform at least two-stage air purification, and may be configured as an air purification device. Features. According to the present invention, in addition to the high-efficiency purification performed on the liquid surface of the water receiving tank, the purification by the water shower using the water sprinkling member having the above-described structure performed above the water purifier performs a double purification action, and the water is cleaned in the washing tower. Extremely sufficient purification can be realized, and clean air can be obtained from the air outlet.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show an example of an air purification device according to the present invention. 1 is a front view showing the appearance of the entire air purification device, FIG. 2 is a right side view, FIG. 3 is a top view thereof, and FIG. 4 is a longitudinal sectional view of FIG. The air purifying apparatus M shown in FIG. 1 includes a washing tower 10, a water receiving tank 20 provided below the washing tower 10, an air chamber 30 provided above the water receiving tank 20, and an air chamber 30 provided above the air chamber 30. And the water sprinkling means 40 disposed as a main component. In the following, for convenience, the liquid stored in the water receiving tank 20 and the liquid sprinkled from the sprinkling means 40 are water W
However, it goes without saying that another liquid may be used instead of the water W.

The washing tower 10 has a so-called closed cylindrical outer wall 11 in which a vertically long cylindrical side wall 11a and a lid 11b connected to the upper end edge of the side wall 11a are integrally formed. A suction pipe (same as an inflow pipe) 12 penetrating the side wall 11a from the outside to the inside is provided at a lower portion of the outer wall 11, and a lid portion 11b is provided at the upper portion of the outer wall 11 with a lid 11b facing upward from below. A lead-out pipe 13 penetrating through is provided. An air inlet 12a (same as an air inlet) and an air outlet 13a
Are open outward. In addition, three inspection doors 14a, 14b, 1 that can be opened and closed are provided on the front side of the side wall 11a.
4 are provided in order from the top, and are set so as to substantially correspond to the lower part of the outlet pipe 13, the upper part of the water sprinkling means 40, and the upper part of the air chamber 30, respectively. Scaffold 1 so that it protrudes
6a, 16b and 16c are set, and a ladder 17 for elevating is mounted beside these. These inspection doors are provided with inspection windows 15a, 15b, and 15c that allow the inside of the washing tower 10 to be viewed. These structures are optional, and may be appropriately designed.

The water receiving tank 20 is provided at a lower portion inside the outer wall 11 of the washing tower 10. A first drain 21 for determining the level of the water surface Ws of the water W stored therein and a second drain 22 for extracting the water W in the water receiving tank 20 are connected to the water receiving tank 20. ing. The air chamber 30 is formed by an inverted cup-shaped member,
The opening 31 is disposed at a position facing the water surface Ws of the water receiving tank 20 from above. The lower end portion 30a of the air chamber 30 corresponding to the peripheral portion of the opening 31 is formed with irregularities. In this embodiment, the unevenness is the water surface W
As shown in FIG. 5, the projections and depressions are formed in a continuous repetition shape based on a forward / reverse trapezoid in which the tops and valleys of the triangle are horizontal. further,
Lowermost (lowest part) 30b of lower end 30a
However, they are slightly separated from each other through a gap G between the water surface Ws and the convex portion (the lowermost end) without contacting the water surface Ws.
The gap G varies depending on the size of the opening and the blast pressure, but it is sufficient if the gap can be generated so that turbulence can be generated while waving the water surface. For example, the gap having a diameter of 1.4 m is 30 to 70 mm.
At this time, the lower end 30a is made to have an unevenness of 30 to 70 mm, and the gap between the lower end 30a including the unevenness and the water surface Ws is
It is preferable that the wind speed is accelerated to about 3 to 6 times and the wind speed is about 10 to 15 m / sec.

The watering means 40 includes a watering member 41, a driving means 42, and a water supply member 43. Watering member 41
As shown in FIG. 6, a horizontal disk-shaped rotary plate for forming a connecting portion 41ba for bearing-fixing an upper portion of a vertical rotary shaft 41a on a lower side to receive water flowing down from above and to scatter it around. 41b and a vertical plate which is radially disposed on an outer portion within a radius excluding a center portion of the rotary plate 41b, and has an oblique cutout at an inner upper portion of the plate so that a water outflow path can be widened. A plurality of watering blades 41c formed in 41ca;
The plurality of watering blades 41c are covered from above, and the outer periphery is in the form of a horizontal plate slightly larger than the diameter of the rotating plate 41b,
The central portion is a through hole 41da through which water flows down, and is formed of an annular regulating plate 41d formed with a lower peripheral edge formed as a downwardly inclined surface 41db.

The rotating shaft 41a may be any mechanism rotated by a motor. In the example of FIG.
1e, the rotation shaft 41a
Between the two bearings 41e in the driving means 4
A pulley 42d that constitutes a part of the pulley 2 is fixed. The drive means 42 may also be an optional mechanism. In the illustrated example, the outer wall 11
A motor 42b fixed to a bracket 42a attached substantially at the center in the height direction on the right side of
2b, a pulley 42c fixed to the output shaft, a pulley 42d paired with the pulley 42c and fixed to the rotating shaft 41a of the water sprinkling member 41, and a belt 42e stretched over the pulleys 42c and 42d. ing. It is preferable to use a motor capable of controlling the number of revolutions as the above-described motor 42b. The motor 42b is covered by a cover 42f, and the bearing 41e, the pulley 42d, and the belt 42e are covered by an arm-shaped cover 42g extending horizontally from near the motor 42b toward the center of the washing tower 10. .

The water supply member 43 has a water supply port 43a formed through a through hole 41da provided in a regulating plate 41d of the water sprinkling member 41.
It is arranged so that it may be located above. Water supply member 43
May be an optional mechanism, but is connected to a pump 43c via a water supply pipe 43b in the illustrated example. The pump 43c is
Pump up the water in the watering tank 43d adjacent to this,
The water is supplied to the watering member 43. Watering tank 43d
The upper part and the lower part are communicated with the inside of the washing tower 10 via connecting pipes 43e and 43f. Wash tower 10
A primary mist separator 51 for collecting water droplets is disposed above the watering means 40 in the inside, and the outlet pipe 1 above the primary mist separator 51 is provided.
3 is provided with a secondary mist separator 52 if necessary.
Is provided, and the outlet pipe 13 is connected to a blower (not shown). The blower sucks air to be purified into the washing tower 10 from the air intake port 12a, and discharges the purified air from the outlet pipe 13.

On the other hand, in the washing tower 10, annular baffle plates 53a, 53b, 53c and 53d are attached in order from below. The baffle plate 53a extends from below the water surface Ws of the water receiving tank 20 to the lower outside of the air chamber 30 including the lower end portion 30a.
The baffle plate 53a is provided with a gap larger than the gap between it and the lower end portion 30a. The upper portion of the baffle plate 53a is narrowed in a curved shape, and the upper end portion is close to the outer peripheral surface of the air chamber 30 to reduce the gap. It is formed by folding back.
The baffle plate 53b is disposed above a gap between the outer surface of the air chamber 30 and the baffle plate 53a,
In addition, the baffle plate 53a is formed in an umbrella-like curved shape above the baffle plate 53a so as to change the outflow direction of air from the upper side to the outer side, and is fixed to the outer peripheral surface 30c of the air chamber.

The baffle plate 53c is installed above the baffle plate 53b on the inner peripheral surface of the outer wall 11 of the washing tower 10 so as to be inclined downward toward the inner peripheral portion. Is installed in the same manner at the lower position of. In each baffle plate, a water shower by the watering means 40 hits the outer wall 11 of the washing tower 10 and flows down like a waterfall, but this water stream is scattered in the washing tower to hit the rising air flow, The air flow rising in the washing tower 10 is installed so as to be diffused into the washing tower and to easily come into contact with the water shower. Note that only the baffle plate 53d may be provided without providing the baffle plate 53c.

Next, the operation of the air purifying apparatus M having the above structure will be described.
The effect will be described. For example, the air A containing other dust and harmful gas such as hydrochloric acid gas, ammonium chloride gas, zinc oxide dust and the like generated in a hot-dip galvanizing plant, such as ammonia gas generated in a composting plant, is supplied to the air outlet 13a of the washing tower 10. Blower installed on the side (not shown)
Thus, the air is sucked into the air chamber 30 from the suction port 12a. The sucked air A is blown from the opening 31 to the water surface Ws of the water receiving tank 20, and vigorously beats the water surface, and is sucked outward from the gap between the lower end portion 30a formed in irregularities and the water surface Ws. You. Here, the air flow collides with the water surface and the air flow is disturbed by the uneven gap, and a high speed portion and a low speed portion occur, and the speed and direction of the flow change irregularly,
A partial pressure difference also occurs, resulting in a turbulent state, and a sufficient contact state with the water W is generated. Also, the baffle plate 53
a, a gap slightly larger than the gap is formed outside the uneven gap, and the baffle plate is formed to be curved and the upper end portion is narrowed, so that the air A passing through the uneven gap is in the baffle plate. As the pressure changes, a strong vortex is formed, and the water W is wound up to make the inside of the baffle plate a dense mist turbulent state, thereby allowing a more sufficiently mixed state of air and water to appear.

In this manner, 95% or more of the dust and harmful gas in the air is taken in or eluted in the water by the respective actions in the opening 31, the uneven gap, and the baffle plate 53a, and by the combined action thereof. The air is purified. The air A is diffused into the washing tower 10 while being turned outward by the upper baffle plate 53b, thereby creating an upward flow. In this way, the primary collection for collecting and removing dust, harmful gas and the like is performed.

When the air A diffused from the gap between the baffle plates 53a and 53b rises inside the washing tower, it hits the baffle plates 53c and 53d and rises while changing its direction. Ascending and rising in a distributed state, the water flowing down like a waterfall, and the water of the shower diffused and filled by the watering means 40 is sufficiently in contact with the fine dust and harmful gas left in the air. And the like are taken up or eluted in water and sufficiently removed.

In the water spraying means 40, the rotating plate 41b is rotated by rotating the motor 42b. The water supplied to the water supply member 43 through the water supply pipe 43b flows down from the water supply port 43a, passes through the through hole 41da of the regulating plate 41d, falls on the rotating plate 41b, is partitioned by the rotating blades 41c, and is separated from the rotating plate 41b. From the passage formed between the regulating plates 41d, the gas is released and diffused to the circumferential side by strong centrifugal force. At this time, the rotating blades 4
If the inner upper portion of 1c is the cutout portion 41ca, a wide flow path can be secured, and the water flowing down from the water supply port can easily flow into the passage between the regulating plates 41d smoothly and uniformly, and a sufficient water shower can be obtained. In addition, if the lower side of the peripheral portion of the regulating plate 41d is the lower inclined surface 41db, the water shower can be diffused slightly downward from the watering member 41. Since the water shower receives the hoisting pressure of the rising air flow from below the washing tower, it is desirable that the water shower be discharged slightly downward so as to hit the rising air flow, and the contact action between air and moisture is further enhanced. Thus, the residual dust and harmful gas in the air are efficiently captured, and the secondary collection is performed. The air after the secondary collection passes through the primary mist separator 51 and the secondary mist separator 52 sequentially, thereby removing water droplets and the like, and purifying air is discharged from the outlet 13a. .

As in the above embodiment, it is most preferable that the unevenness of the lower end portion 30a of the air chamber 30 is formed toward the water surface Ws for the purifying effect. And irregularities,
Alternatively, it is also possible to form a state in which the convex portion is bent inward at an angle of about 45 ° in a state inclined obliquely to the water surface Ws. As compared with the case of, the purification effect is significantly increased.

As described above, according to the present invention, various dusts from coarse dust to fine dust in the air are sufficiently removed, and harmful gases and mist in the air are efficiently and sufficiently converted into a liquid. It can be dissolved and removed to purify the air.

[Brief description of the drawings]

FIG. 1 is a front view showing an external appearance of an example of an air purification device according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a top view of the same.

FIG. 4 is a longitudinal sectional view of FIG. 2;

FIG. 5 is a partially enlarged view of a lower end portion of the air chamber.

6 (A) is a perspective view, FIG. 6 (B) is a longitudinal sectional view, and FIG. 6 (C) is a top view of the water sprinkling member without a regulating plate.

FIG. 7 is a schematic diagram showing a configuration of a conventional air purification device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rinse tower 12a Air inlet 13a Air outlet 20 Water receiving tank 30 Air chamber 30a Lower end 31 Opening 40 Sprinkling means 41 Sprinkling member 41a Rotating shaft 41b Rotating plate 41ba Coupling 41c Rotating blade 41ca Notch 41d Regulating hole 41d 41db Downward inclined surface 42 Driving means 43 Water supply member 53a Baffle plate 53b Baffle plate 53c Baffle plate 53d Baffle plate A Air flow M Air purification device W Liquid (water) Ws Liquid surface (water surface)

Claims (5)

[Claims] 1. A washing tower having an air inlet and an air outlet, wherein the air containing dust or harmful or odorous gas sucked from the air inlet is discharged from the air outlet. In the air purification device that purifies with the liquid inside, a water receiving tank is arranged in the lower part of the washing tower, and the lower end of the air chamber communicating with the air suction port is approached above the liquid level of the water receiving tank and the opening is opposed. An air purification device having a configuration in which the lower end of the opening is formed as a continuous concave and convex shape, and the air is purified by the liquid while passing through the gap. 2. A baffle plate is provided outside the lower part of the air chamber, and the baffle plate is erected from below the surface of the water receiving tank while maintaining a gap wider than the gap between the lower end of the air chamber and the water surface outside the air chamber. The air according to claim 1, wherein at least the upper portion is curved, and the upper end portion is formed so as to approach the air chamber to narrow the gap, and the air is purified by the liquid while passing through the gap. Purification device. 3. Another baffle which is disposed above a gap between an air chamber and a baffle plate provided outside the lower part thereof and is curved in an umbrella shape so as to change an outflow direction of air from above the baffle plate to the outside. The air purification device according to claim 2, wherein the air purification device has a configuration in which a plate is provided. 4. A washing tower having an air inlet and an air outlet, wherein the air containing dust or harmful or odorous gas flowing in from the air inlet is discharged from the air outlet through the air outlet. In the air purifying apparatus that purifies with the liquid, a water sprinkling member that is rotationally driven by driving means is installed in the washing tower, and the water sprinkling member rotates in a substantially horizontal direction while receiving the liquid supplied by the water supply member. Board and
A plurality of watering blades radially arranged on the rotating plate and a regulating plate installed so as to cover at least a part of the upper part of the watering blades are formed. An air purifying device having a configuration in which air is purified by bringing air into contact with a water shower that has been made to flow. 5. An air chamber having an opening on a water receiving layer according to any one of claims 1 to 3, in a lower part of a washing tower having an air inlet at a lower part and an air outlet at an upper part. Further, a baffle plate is provided, and a baffle plate is provided above the baffle plate.
An air purification device having a configuration in which the water spray member according to (1) is arranged to purify air in at least two stages.