JP3270505B2 - Air treatment method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air treatment method and apparatus for rapidly removing various dusts, harmful gases, bacteria, smoke, radioactive substances, heat energy and the like in the air.

[0002]

2. Description of the Related Art In recent years, bacteria and viruses, as well as LSI and VLSI manufacturing plants, biological preparation manufacturing plants, precision machine washing plants, aseptic food manufacturing plants, operating rooms and refrigerator rooms, Many factories, etc., require ultra-clean clean air under strict conditions that do not allow the inclusion of dust of 0.5 μm or less.

[0003] For various factories, operating rooms, refrigeration rooms, and the like, which need to be highly purified, it is relatively easy to produce the above-mentioned ultra-clean clean air by the present applicant. JP-A-62-68515, JP-A-62-68516
A gazette is known.

In other words, a number of nozzles are provided around a cylindrical injection pipe in the center of the water injection device, and water is injected from each nozzle at a high pressure by a pump to collide with a side portion inside the water injection device. A fine mist was generated and mixed and contacted with contaminated air to absorb and remove contaminants.

The present applicant has Japanese Patent Application No. 1-166095 as another method for producing an ultrafine mist by another method. In this method, water is applied at a constant pressure to an impeller that rotates at a high speed and conveys air, and the impeller and water collide with each other to generate ultrafine mist. It is assumed that.

[0006]

However, in the above-mentioned examples of JP-A-62-68515 and JP-A-62-68516, although ultra-fine mist is generated well, mixed contact with contaminated air is difficult. Since it is not always sufficient, it is necessary to circulate, and it takes time to obtain ultra-clean clean air. In addition, in the above-described example, it is difficult to reduce the size of the water injection device due to its structure, the size of the device becomes large, the device space is widened as a whole, and the device itself has a complicated structure. .

In the example of the above-mentioned Japanese Patent Application No. 1-166095, an installation space is not required, the structure is simple, and an ultrafine mist can be generated. However, a function of conveying air to an impeller of a turbine fan is provided. Because of this, the mixed contact between the ultrafine mist and the contaminated air is insufficient due to the restriction, it is necessary to circulate it sufficiently, it takes time to obtain ultra-clean clean air, and heat energy is also consumed. It can be said that removal is practically impossible.

Accordingly, the present invention has been made in view of the above circumstances, and has a simple structure and requires little installation space, while rapidly and reliably removing pollutants and heat energy in the air. An object of the present invention is to provide a method and an apparatus for air treatment that can be removed.

[0009]

In order to solve the above-mentioned problems, an air treatment method of the present invention comprises a plurality of chambers each having an entrance and exit and having a diameter which is sequentially increased at a predetermined ratio, concentrically and in series from the entrance. A plurality of rotating bodies whose diameters are sequentially enlarged at the same ratio as the predetermined ratio are provided in the plurality of rooms, respectively, and the axes of the rotating bodies penetrate the entrances and exits, respectively. When a plurality of processing units are configured corresponding to the room, the liquid is constantly supplied to each rotating body, and the rotating body is rotated to cause the liquid to collide with the wall surface in the room, thereby generating fine droplets. At the same time, the air to be processed is sequentially supplied from the inlet to the plurality of processing units and mixed with the fine droplets for processing.

Further, the air treatment apparatus of the present invention has a plurality of chambers each having an entrance and an exit, each having a lower portion forming a tank, having a diameter which is sequentially increased at a predetermined ratio and installed concentrically and in series. a plurality of rotating bodies room within the provided corresponding to these sequentially expanding the diameter at the same rate as the predetermined ratio of, respectively loosely fitted the doorway is fixed through the center of rotation of the plurality of A plurality of processing units are configured with the shafts to be driven, and a driving unit is connected to the shafts of the processing units to drive the rotating body, and a supply unit that supplies air to be processed to the room.

[0011]

According to the above arrangement, when the rotating members whose diameters are sequentially increased from the inlet side in each processing unit are rotated by rotating the shaft, the rotating members are sequentially rotated from a smaller diameter to a larger diameter. The liquid supplied to each rotating body becomes faster, the liquid with a small diameter of the rotating body is slower, and the liquid with a larger diameter scatters faster and collides with the wall of the room, and the liquid supplied from each rotating body becomes smaller to larger. The fine droplets gradually become smaller in size, and a film of fine droplets with successively smaller particle sizes is formed between the rotating body of the processing unit and the wall of the room, and the shaft is loosely fitted. The air to be treated, supplied from the inlet, passes through the membrane having a gradually decreasing particle diameter, is mixed and sequentially processed while increasing the processing grade, and exits from the outlet.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view showing an apparatus to which the method of the present invention is applied, and FIG. 2 is a sectional view taken along line AA in FIG. In both figures, reference numeral 1 denotes an air treatment device, which has an inlet 2 and an outlet 3 and has a lower portion forming a tank 4 and is arranged concentrically and in series by sequentially increasing the diameter at a predetermined ratio. A plurality of chambers 5, a plurality of rotating bodies 6 provided in the plurality of rooms 5 arranged in series and having diameters sequentially enlarged correspondingly to the predetermined ratio, and a plurality of rotating bodies 6. It is fixed through the center and said entrance 2,
A plurality of processing units 8 are configured by shafts 7 into which the outlets 3 are loosely fitted, respectively. A driving unit 9 connected to the shafts 7 of the processing units 8 to drive the rotating body 6,
And a supply fan (supply unit) 11 for supplying the same.

The chamber 5 is formed to have sequentially larger diameters by providing a partition 13 in a housing 12 having a truncated cone shape. The partition 13 is provided with an opening 14 serving as an entrance and exit of the rooms 5 and 5 which are located at substantially the center of the partition 13, and the diameter of the opening 14 is substantially the same as that of the entrance 2. An overflow hole 15 is formed in the partition 13 of the tank 4 of each room 5, and if the liquid 18 is supplied to the tank 4 of the room 5 near the inlet 2 by a pipe 17 with a valve 16, it is sequentially downstream. Liquid 18 in tank 4
Can be supplied.

An inlet pipe 19 for introducing the air to be treated 10 is provided on the inlet 2 side of the housing 12, and the inlet pipe 19 is connected to the supply fan 11. Further, the housing 12 on the outlet 3 side is provided with a mass 20 for receiving the liquid 18 flowing over the overflow hole 15, and the liquid 18 can be discharged to the outside via the valve 21.

Although the number of the rooms 5 is five in this embodiment, the number of rooms is not limited thereto, and may be two or more. The rotating body 6 is mounted on each shaft 5 on a shaft 7 supported by a bearing (not shown) by loosely fitting the inlet 2, the outlet 3 and the opening 14 of the partition 13, and an outer peripheral portion 6 a of the rotating body 6. Is always tank 4
Immersed in the liquid 18 inside. And these rotating bodies 6
Is the size along the diameter of each room 5, and the rotating body 6
Of the room 5 is substantially constant. The form of the rotating body 6 is not particularly limited, and may be a liquid.
Any form may be used as long as the liquid 18 adheres to the surface when immersed in the liquid. However, this rotating body 6
Is rotated at a considerable peripheral speed, and therefore, it is desirable that it be balanced as a whole. The reason is that it shortens the life of the bearing and causes vibration and noise.

The driving section 9 rotates the rotating body 6 and usually uses an electric motor, but may be a gasoline engine or a diesel engine. The driving unit 9 may have a variable speed reducer. By controlling the peripheral speed of the rotating body 6, the scattering speed of the liquid 18 attached to the rotating body 6 can be changed, and the generated fine droplets It is also possible to control the diameter.

The supply fan 11 is not particularly limited as long as it can send the air 10 to be treated. The supply fan 11 may be omitted by attaching a propulsion blade to the rotating body 6. It is possible.

Next, an air processing method using the air processing apparatus 1 having the above configuration will be described. First, the air to be processed 10 is determined, the processing grade is set, and the air processing apparatus 1 having the number of processing units corresponding to the processing grade is selected. Next, the driving unit 9 is driven to rotate each rotating body 6 of each processing unit 8 by the shaft 7. Immediately thereafter, the valve 16 is opened and the liquid 18 is poured into the tank 4 on the inlet 2 side.
As a result, the liquid 18 enters all the tanks 4. Further, the valve 21 is opened so that the liquid 18 which has overflowed from the overflow hole 15 of the tank 4 and entered the mass 20 can be discharged to the outside. When the liquid 18 enters the position of the overflow hole 15, the outer peripheral portion 6 a of each rotating body 6 is always immersed in the liquid 18, and the liquid 18 adheres to the outer peripheral portion 6 a of each rotating body 6. The adhering liquid 18 immediately scatters and collides with the wall surface of each room 5 to form fine liquid droplets.
A film due to the fine droplets is generated between the film and the wall surface. At this time, the diameter of each rotating body 6 of each processing unit 8 gradually increases from the inlet 2 to the outlet 3. Since the rotating bodies 6 are rotated by the same shaft 7, the peripheral speed of the portion of the outer peripheral portion 6a of each rotating body 6 that is immersed in the liquid 18 is changed from the inlet 2 to the outlet 3
, The scattering speed of the liquid 18 increases accordingly, and the particle diameter of the fine droplets of the film generated by colliding with the wall surface of each room 5 becomes finer. Therefore, in this embodiment, since there are five processing units 8, the films in which the particle diameters of the fine liquid droplets are gradually increased from the processing unit 8 near the entrance 2 are generated. In this state, the supply fan 11 connected to the air source to be processed is operated, and the air 10 to be processed is introduced from the introduction pipe 19 through the inlet 2 into the processing unit 8 close to the processing unit 8. Go into unit 8. At this time, the air to be processed 11 passes through the film formed by the fine droplets having the above-described particle diameter generated in each processing unit 8 and passes through the film having the sequentially fine particle diameter. During the process, contaminants and heat energy due to radioactivity in the air to be treated 18 are sequentially filtered or transferred. Therefore, exit 3
When the air to be processed 18 is discharged from the air, the air becomes a well-ordered air suitable for the above-mentioned processing grade.

[0019]

As described in detail above, according to the present invention,
As for the liquid supplied to each rotating body, the speed of the rotating body is small when the diameter of the rotating body is small, and the speed of the liquid is large when the rotating body has a large diameter. Fine droplets with a gradually decreasing particle size are formed, and a film of fine droplets with a gradually decreasing particle size is formed between the rotating body of each processing unit and the wall surface of the room, and the shaft is loosely fitted. The air to be processed supplied from the inlet is immediately passed through the film having a gradually decreasing particle diameter, mixed and sequentially processed while increasing the processing grade, and exits from the outlet.
Therefore, while having a simple configuration and requiring little installation space, it is possible to quickly and surely remove contaminants and heat energy in the air.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an apparatus to which the method of the present invention is applied.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Air treatment apparatus 2 Inlet 3 Outlet 4 Tank 5 Room 6 Rotating body 7 Axis 8 Processing unit 9 Drive unit 10 Air to be processed 11 Supply fan (supply unit) 18 Liquid

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI B01D 53/34 F28C 3/06 53/77 G21F 9/02 521Z F28C 3/06 B01D 53/34 C G21F 9/02 521 E ( 58) Field surveyed (Int.Cl. ⁷ , DB name) B01D 47/00 B01D 47/16 B01D 53/14 B01D 53/18 B01D 53/34 B01D 53/77

Claims (2)

(57) [Claims] 1. A plurality of rooms each having an entrance and an entrance, each of which is sequentially enlarged in diameter at a predetermined ratio, are installed concentrically and in series from the entrance side, and corresponding to the predetermined ratio in the plurality of rooms. A plurality of rotating bodies whose diameters are sequentially increased by a ratio are respectively provided, and the axes of the rotating bodies penetrate the entrances and exits to form a plurality of processing units corresponding to the plurality of rooms. The liquid is supplied and the rotating body is rotated to cause the liquid to collide with the wall surface in the room, to generate fine liquid droplets, and to simultaneously supply the air to be processed from the inlet to the plurality of processing units to generate fine liquid. An air treatment method, wherein the air treatment is performed by mixing with a droplet. 2. A plurality of chambers each having an entrance and an entrance, and a lower portion forming a tank, the diameter of which is sequentially increased at a predetermined ratio and installed concentrically and in series, and provided in a plurality of rooms arranged in series, respectively. a plurality of rotating bodies are sequentially expanding the diameter at the same rate as the predetermined ratio corresponding plurality of processing units with a shaft loosely fitting the doorway respectively is fixed through the center of rotation of the plurality of An air processing apparatus comprising: a driving unit connected to a shaft of the processing unit to drive a rotating body; and a supply unit that supplies air to be processed to the room.