JPH11300238A - Fine water droplet generating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly efficient fine water droplet generating apparatus with a miniaturized size at low cost without deteriorating the generation quantities of fine water dews and minus ions. SOLUTION: A bowl-like first rotary body 1 and a second rotary body 2 are concentrically arranged and both rotary bodies 1, 2 are mutually inversely rotated by a first motor 3 and a second motor 4. Water supplied to the inside of a first rotary body 1 by a water supplying means 7 is jetted out of water drop releasing holes 1h of an inner side vertical wall 1c by centrifugal force and the water drops come into collision against an inner side vertical wall 2c of the inversely rotated second rotary body 2 and further the water drops jetted out of water drop releasing holes 2h of the inner side vertical wall 2c come into collision against an outer side vertical wall 1e of the first rotary body 1 to be made fine. Moreover, the resultant water drops come into collision against the outer side vertical wall 2e of the second rotary body 2 from the outer side vertical wall 1e and then are jetted to the inner circumferential face of the cylindrical container 11 to be made fine and consequently, minus ions are generated by the fine water drops and water drop colliding energy and supplied to an interior room to clean and activate the air in the interior room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for generating fine water droplets (mist) for purifying air from tap water and, at the same time, having an air cleaning activation function for generating negative ions useful to the human body. About.

[0002]

2. Description of the Related Art As a device for generating fine water droplets for indoor use such as a general household, a gas-liquid contact portion for generating fine water droplets with water in a water tank and contacting the air flow, and a gas-liquid contact portion obtained by the gas-liquid contact portion. 2. Description of the Related Art There is known a device having a droplet separation unit that separates and removes water droplets unsuitable for air purification from a mixture of fine water droplets and an air flow and discharges purified air and fine water droplets into a room. A specific example is shown in FIG. 5 and described. The fine water droplet generating apparatus shown in FIG. 5 includes a gas-liquid contact part A ′ having a cylindrical container 30 also serving as a water tank, and a droplet separating part B having a cylindrical container 31 also serving as a water tank. 'Are installed side by side.

[0003] Water 32 is stored at the bottom of the cylindrical container 30 at the gas-liquid contact portion A ', and one rotating shaft 33 is installed vertically in the upper space inside the cylindrical container 30. A horizontal disk-shaped rotator 34 is coaxially fixed to a plurality of upper and lower positions separated from the rotation shaft 33, and the rotation shaft 33 is rotated by a motor 35 installed on the cylindrical container 30 so that each rotator 34 is the same. High speed rotation in the direction. Further, in the cylindrical container 30, a plurality of water supply means 36 such as nozzles for ejecting water 32 toward each of the rotating bodies 34 are provided. The water 32 at the bottom of the cylindrical container 30 is pumped to the water supply means 36 by the circulation pump 37 and is jetted at high speed to each rotating body 34. In the upper part of the cylindrical container 30, an inlet 38 for introducing air from outside is formed.

[0004] Water 32 is stored at the bottom of the cylindrical container 31 of the other droplet separating section B ', and an air outlet 40 is formed at the upper end of the cylindrical container 31. A column 41 that guides air spirally from below to above is installed at the center in the cylindrical container 31. This cylindrical container 31 and the cylindrical container 30 at the gas-liquid contact portion A '
Is communicated with a vent pipe 42 and a liquid passage pipe 43.

The device for generating fine water droplets shown in FIG. 5 operates as follows. The rotating body 34 of the gas-liquid contact portion A 'is rotated at a high speed,
When water 32 is jetted from the water supply means 36 to the rotator 34 and made to collide at a high speed, the water 32 is miniaturized by the collision energy, and negative ions with the addition of water molecules are generated at this time. At the same time, when air is blown from the upper inlet 38 of the cylindrical container 30 by the blower fan 39 in the rotation and tangential directions of the rotating body 34, the air flows downward from the inlet 38 while spirally turning inside the cylindrical container 30, The rotating body 3
Fine water droplets generated around 4 are mixed. At this time,
Fine dust, tobacco smoke, bacteria, etc. contained in the air flow adhere to the fine water droplets, and the water droplets to which the dust adheres have various particle sizes depending on the size of the dust, and the particle size is large from the beginning. The formed water droplets cannot be swirled by the swirling force applied to the mixture of air and water droplets, and fall into the water 32 at the bottom of the cylindrical container 30 or collide with the inner wall surface of the cylindrical container 30 and travel along the inner wall surface. Run down. An air-fuel mixture containing air and fine water droplets remaining after water droplets having a large particle diameter have been removed is introduced from the tangential direction into the cylindrical container 31 of the droplet separation part B ′ through the ventilation pipe 42, Ascend while turning along the inner wall surface. At this time, since the centrifugal force due to the swirl acts on the air-fuel mixture, only the air-fuel mixture containing fine water droplets, which seems to be free of dust, swirls and rises, and fine dust adheres, Alternatively, water droplets having no particle attached but having a particle size of several tens of μm or more are separated from the air-fuel mixture and fall into the water 32 at the bottom of the cylindrical container 31. Then, a mixture of purified air, fine water droplets and negative ions is discharged from the air outlet 40 into the room.

[0006] By continuously releasing a mixture of purified air, fine water droplets, and negative ions from the above fine water droplet generator into the room, the indoor cleaning is promoted. When circulating water, fine dust in the air, smoke from cigarettes and odors are taken and sucked into the fine water droplet generator again, so higher quality cleaning can be expected, and negative ions can be indoors. Due to the large amount of release, a state close to the natural environment near forests and waterfalls can be realized, and a refreshing feeling of mind and body can be obtained.

[0007]

The major factors that determine the amount of negative water droplets for purifying indoor air and the amount of negative ions for activating indoor air by the above-described fine water droplet generator are the following: There is the amount of water collision and the magnitude of the collision energy. Therefore, a plurality of rotating bodies and a set of water supply means are installed so that the amount of generated fine water droplets and negative ions is an appropriate amount, and the diameter of the rotating body is increased to reduce the amount of water collision with the entire rotating body. In addition, the rotational speed of each rotating body and the capacity of the circulating pump for ejecting water to each rotating body are increased to increase the collision energy of water that collides with each rotating body.

[0008] By doing so, it is possible to set the amount of generated fine water droplets and negative ions to a value suitable for cleaning and activating the indoor air. However, the above-described method of increasing the amount of water collision and the collision energy increases the diameter of the rotating body, increases the number of rotating bodies and water supply means, and supplies water to the motor and the rotating body that rotate the rotating body at high speed. Since the size of the circulation pump for jetting at a high speed is required, the size of the fine water droplet generator becomes complicated and expensive, and it is not practical as an indoor fine water droplet generator for general households.

Therefore, various devices have been proposed for realizing the miniaturized, compact, and low-cost indoor fine water droplet generators of ordinary households. FIG. 6 shows an example of the micro water droplet generating apparatus shown in FIG. 6. The horizontally long water tank 50 has a gas-liquid contact portion A "on the left half and a droplet separation portion B" on the right half. The gas-liquid contact portion A ″ is connected to the motor 5 installed on the water tank 50.
1 and a rotating body 53 coaxially fixed to the lower end of a rotating shaft 52 extending downward from the motor 51. Rotating body 53
Is composed of two horizontal disks 53a, 53b vertically opposed with a small gap G, and a water suction pipe 53c extending downward from the center hole of the lower disk 53b. Is immersed in the water 54 of the water tank 50. The droplet separation part B ″ has an air outlet pipe 55 fixed vertically to the upper part of the water tank 50.

When the rotating body 53 is rotated at high speed by the motor 51 shown in FIG. 6, the gap G between the discs 53a and 53b and the inside of the water suction pipe 53c become negative pressure, and the water tank 50 is placed in the water suction pipe 53c.
The water 54 is sucked up, reaches the gap G, and is rotated at a high speed in the gap G to be finer. When air is blown into the water tank 50 by the blower fan 57 from the air inlet 56 near the motor 51, fine water droplets join the air flow and flow below the air outlet pipe 55, and pass through the air outlet pipe 55. It rises while turning meandering and is released into the room.

The fine water droplet generating apparatus shown in FIG.
In addition, since a circulating pump and nozzles for supplying water to the rotating body are not required, the entire apparatus is simplified, and miniaturization, compactness, and cost reduction are easy. However, in such a small and compact fine water droplet generating apparatus, the amount of water collision with the rotating body and its collision energy are generally insufficient, and the amount of fine water droplets reaches the amount that purifies indoor air. In particular, the amount of generation of negative ions must be very small, and almost no activation of indoor air can be expected.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a high-efficiency fine water droplet generating apparatus which can be made compact and compact without reducing the amount of fine water droplets and negative ions generated. .

[0013]

The technical means for achieving the above object of the present invention comprises a plurality of bottom plates each having a substantially horizontal circular shape and different diameters, and a plurality of bottom plates integrally suspended above a peripheral edge of the bottom plate. A pair of bowl-shaped first and second rotators having a vertical wall portion having a water droplet discharge hole at a position, and a first rotator being an upper stage and a second rotator being a lower stage. A first motor for rotating the first rotating body in a fixed direction around its center line in a state where the two rotating bodies are supported substantially coaxially so that the different vertical wall portions substantially concentrically face each other with a predetermined gap, and A second motor for rotating the second rotator in a direction opposite to the first rotator about the center line thereof; and a water supply unit for supplying water from outside to the inside of the first rotator; The water supplied into the first rotating body rotating from the centrifugal force is used to discharge water droplets in the vertical wall of the first rotating body. Al is ejected collide with a vertical wall portion inner surface of the second rotary member, characterized in that miniaturized.

Further, in the present invention, at least the vertical walls of the first rotary body and the first rotary body of the second rotary body are constituted by a plurality of vertical walls each of which is concentrically provided with a predetermined gap. The vertical wall of the second rotating body is disposed at the center of the cylindrical space between the plurality of vertical walls.

Further, in the present invention, the first rotator and the second rotator are housed in a cylindrical container, and the outermost periphery of a vertical wall portion of the two rotators arranged substantially concentrically on the inner peripheral surface of the cylindrical container. It is characterized in that water droplets ejected from water droplet discharge holes on the surface are made to collide with each other to further reduce the size.

Here, the pair of bowl-shaped first and second rotating bodies are preferably rotated about the same rotation center line.
Water and water droplets in each vertical wall are discharged from the water droplet discharge holes of the vertical wall by centrifugal force and collide with the inner surface of the vertical wall on the other side or the inner surface of the cylindrical container surrounding each rotating body. Fine water droplets are generated by the impact energy, and negative ions are generated at the same time. At this time, the collision energy is doubled by the first rotating body and the second rotating body rotating in opposite directions, so that fine water droplets and negative ions are efficiently generated, and the amount of generation is increased. In addition, the collision of the water droplets in the radial direction between the first rotating body and the second rotating body is repeatedly performed, so that the whole fine water droplet generating device is reduced in size and size particularly in the height direction.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2, a second embodiment will be described with reference to FIG. 3, and a third embodiment will be described with reference to FIG.

The fine water droplet generating apparatus of the first embodiment shown in FIG. 1 has a gas-liquid contact portion A having a cylindrical container 11 also serving as a water tank.
And a basic structure in which the liquid droplet separation units B each having the cylindrical container 21 also serving as a water tank are installed in a side-by-side state. A feature different from the conventional apparatus of this embodiment is that a rotating body which is provided at the gas-liquid contact portion A and generates a fine water droplet from water is constituted by a first rotating body 1 and a second rotating body 2. Each of the rotating bodies 1 and 2 is independently rotated in the reverse direction by the first motor 3 and the second motor 4.
Is supplied by the water supply means 7.

Water 8 is stored at the bottom of the cylindrical container 11 at the gas-liquid contact portion A, and a pair of the first rotating body 1 and the second rotating body 2 are coaxially arranged in an upper space in the cylindrical container 11. The water supply means 7 is provided right above the first rotating body 1. Cylindrical container 1
The first motor 3 is installed in the center of the upper end of the
The second motor 4 is installed at the center of the lower end of the motor. Cylindrical container 11
An inlet 13 for introducing air from the outside is formed on the upper wall surface of the air conditioner. A blower fan 14 for blowing outside air to the inlet 13 and a circulation pump 15 for pressure-feeding the water 8 in the cylindrical container 11 to the water supply means 7 are additionally provided outside the cylindrical container 11.

At the bottom of the cylindrical container 21 of the droplet separation section B, water 8
Is accommodated, and an air discharge pipe 2 is provided at the center of the upper end of the cylindrical container 21.
2 is fixed. The upper part of the cylindrical container 11 and the lower part of the cylindrical container 11 at the gas-liquid contact part A are communicated by a vent pipe 16, and the lower parts of the two cylindrical containers 11 and 21 are connected by a liquid passage pipe 17. The cylindrical containers 11 and 21 are supported in a side-by-side state by a support frame 23.

The first rotating body 1 has a substantially horizontal circular bottom plate 1.
This is a bowl-like body in which a cylindrical vertical wall portion 1b is integrally formed on the peripheral edge of a. The vertical wall portion 1b shown in FIG. 1 has a double wall structure, and has a cylindrical inner vertical wall 1c, an outer vertical wall 1e having a diameter larger than the inner vertical wall 1c, and inner and outer vertical walls 1c, 1c.
e is composed of a connecting plate 1d that connects the upper ends of e. An inner vertical wall 1c extends upward from the periphery of the bottom plate 1a, and the inner and outer vertical walls 1c and 1e are concentrically opposed with a predetermined annular gap. Each of the inner and outer vertical walls 1c and 1e is a thin porous cylindrical wall having a large number of water droplet discharge holes 1h through which water droplets on the inner surface are discharged to the outer surface by centrifugal force. The upper surface of the circular bottom plate 1a is a concave spherical surface, and the center is fixed to the lower end of the rotating shaft 5 of the first motor 3. A drain hole (not shown) in the bottom plate portion 1a for dropping water accumulated on the upper surface when rotation is stopped.
Are formed as needed. The rotating shaft 5 forms a central axis of the first rotating body 1, and the first motor 3 supports the first rotating body 1 on the rotating shaft 5, and moves the first rotating body 1 in a certain direction around the center line thereof. Rotate.

The second rotating body 2 has a substantially horizontal circular bottom plate 2.
This is a bowl-like body in which a cylindrical vertical wall portion 2b is integrally formed on the periphery of a. The vertical wall portion 2b of the second rotating body 2 has, for example, a double wall structure corresponding to the double wall structure of the first rotating body 1, and has a cylindrical inner vertical wall 2c and a larger diameter than the inner vertical wall 2c. , And a connecting plate 2d connecting lower ends of the inner and outer vertical walls 2c and 2e. Vertical wall inside and outside 2
c and 2e concentrically oppose each other with a predetermined annular gap. Each of the inner and outer vertical walls 2c and 2e is also a porous thin cylindrical wall having a large number of water droplet discharge holes 2h through which water droplets on the inner surface are discharged to the outer surface by centrifugal force. The center of the circular bottom plate 2 a is fixed to the upper end of the rotating shaft 6 of the second motor 4. A drain hole (not shown) is formed in the bottom plate portion 2a to allow water remaining on the upper surface to drop when rotation is stopped. The rotating shaft 6 forms a central axis of the second rotating body 2, and the second motor 4 supports the second rotating body 2 on the rotating shaft 6, and rotates the second rotating body 2 by a first rotation about its center line. Rotate in the opposite direction to body 1.

The first rotator 1 is in the upper stage and the second rotator 2 is in the lower stage. At this time, as shown in FIGS. 1 and 2, the vertical walls 1c, 2c, 1e, and 2e of the rotating bodies 1 and 2 are arranged concentrically with a predetermined gap.
The cylinder diameters of c, 1e, and 2e are made to differ stepwise. That is, the inner vertical wall 2c of the second rotator 2 is located at an intermediate position between the inner vertical wall 1c and the outer vertical wall 1e of the first rotator 1 and the inner vertical wall 2c of the second rotator 2. Outside vertical wall 2
e, the outer vertical wall 1 of the first rotating body 1
e is set to be located.

Further, the first rotating body 1 and the second rotating body 2
Is disposed in the center of the upper space of the cylindrical container 11, the inner peripheral surface of the upper portion of the cylindrical container 11 faces the outer vertical wall 2e of the second rotating body 2 with a predetermined gap, and the outer vertical wall 2e
A water droplet collision surface 12 against which water droplets emitted from the water collide at high speed.

The second motor 4 shown in FIG. 1 is installed below the cylindrical container 11 and has a rotating shaft 6 in the cylindrical container 11.
Is rotated, for example, via a pair of magnets 9, 10. In this case, a non-magnetic circular recess 11 ′ is formed in the center of the bottom of the cylindrical container 11, and a magnet 9 fixed to the lower end of the rotating shaft 6 is rotatably installed in the recess 11 ′.
The other magnet 10 rotatably installed on the outer periphery of 1 'is rotated by the second motor 4, and the rotating magnet 10
To rotate the magnet 9, the rotating shaft 6, and the second rotating body 2. The lower portion of the rotating shaft 6 is supported by the magnet 9, and the upper portion is supported on the inner peripheral surface of the cylindrical container 11 by a plurality of radial support arms 25 via bearings 24. The lower portion of the rotating shaft 6 may be penetrated through the bottom plate of the cylindrical container 11 and directly connected to the second motor 4. In this case, the rotating shaft 6 is supported on the bottom plate of the cylindrical container 11 by a watertight bearing. Is desirable.

The operation of the fine water droplet generator of FIG. 1 will be described. The first rotating body 1 is rotated by the first motor 3 at a high speed in the reverse direction by rotating the second rotating body 2 by the second motor 4 (see the arrow direction in FIG. 2). When water 8 is supplied from 7 by being sprayed or the like onto the bottom plate 1a of the first rotating body 1, the water 8 scatters on the bottom plate 1a to the periphery due to centrifugal force due to the rotation of the first rotating body 1, and The water flows toward the inner surface of the wall 1c, and is further discharged at high speed as water droplets from the water droplet discharge holes 1h of the inner vertical wall 1c by centrifugal force, and collides with the inner surface of the inner vertical wall 2c of the second rotating body 2 that rotates in the reverse direction. And split and scattered, generating fine water droplets and negative ions that add water molecules. The first splitting (primary splitting) of the water droplet is always performed with a high collision energy due to the rotation of the inner vertical wall 2c in the reverse direction, so that fine water droplets and negative ions are efficiently generated. Further, by making the bottom plate portion 1a of the first rotating body 1 a concave spherical surface, the flow of the water 8 from the bottom plate portion 1a to the inner vertical wall 1c becomes smooth, and the primary splitting operation proceeds smoothly. The fine water droplets and a part of the negative ions generated by the primary splitting pass through between the rotating bodies 1 and 2 by centrifugal force, and join the air blown from the inlet 13 at the upper part of the cylindrical container 11 to form the cylindrical container. 1
1 flows downward while spirally circling inside the inside of the ventilation pipe 16.
Is sent to the droplet separation section B.

The water droplets that have not been miniaturized by the primary splitting adhere to the inner vertical wall 2c of the second rotating body 2 and rotate at high speed, and are spouted from the water droplet discharge holes 2h of the inner vertical wall 2c by centrifugal force to rotate in reverse. Water droplets are secondarily split by colliding with the inner surface of the outer vertical wall 1e of the first rotating body 1 to be formed. Since the inner vertical wall 2c and the outer vertical wall 1e are rotating in opposite directions to each other, this secondary splitting is always performed with a high collision energy, and fine water droplets and negative ions are generated efficiently. The water droplets that have not been miniaturized by the secondary division adhere to the outer vertical wall 1e of the first rotating body 1 and rotate at high speed, and are ejected from the water droplet discharge hole 1h of the outer vertical wall 1e by centrifugal force and rotate in the reverse direction. The water droplet collides with the inner surface of the outer vertical wall 2e of the two rotators 2 to perform tertiary splitting of water droplets.
Since the outer vertical wall 1e and the outer vertical wall 2e are rotated in opposite directions to each other, the tertiary splitting is always performed with a high collision energy, and fine water droplets and negative ions are generated efficiently. In addition, water droplets that were not miniaturized by the tertiary splitting were secondarily divided.
It adheres to the outer vertical wall 2e of the rotating body 2 and rotates at a high speed, and is spouted from the water droplet discharge hole 2h of the outer vertical wall 2e by the centrifugal force to collide with the water droplet collision surface 12 of the cylindrical container 11, and the final four The next division takes place.

The first rotor 1 between the first split and the fourth split
Most of the water 8 supplied to the cylindrical container 1 is finely divided, and the finely divided water droplets and negative ions are centrifugally applied to the cylindrical container 1.
1 flows downward while spirally circling inside the inside of the ventilation pipe 16.
Is sent to the droplet separation section B. Further, water droplets having a large particle size due to the attachment of fine dust, cigarette smoke, bacteria, and the like included in the airflow flowing through the cylindrical container 11 are removed from the cylindrical container 1.
1 falls into the water 8 at the bottom. A mixture of air and negative ions, which is obtained by removing water droplets having a large particle diameter and remains, is introduced from the tangential direction into the upper space of the cylindrical container 21 of the droplet separation section B through the air passage 16. The air-fuel mixture introduced into the upper space of the cylindrical container 21 descends while swirling along the outer circumference of the air discharge pipe 22, and fine dust and the like in the air-fuel mixture adhere to the centrifugal force at the time of the swirling descent. Alternatively, water droplets having no dust attached thereto but having a particle size of several tens of μm or more are separated from the air-fuel mixture, fall into the water 8 at the bottom of the cylindrical container 21, and fall into fine particles which are considered to be free of dust. Only the air-fuel mixture containing water droplets swirls down, rises through the air discharge pipe 22 from the lower end opening of the air discharge pipe 22, and is discharged into the room.

As in the above embodiment, the first rotating body 1 and the second rotating body 2 are rotated in the reverse direction, and the water 8 supplied into the first rotating body 1 is centrifugally moved in a substantially horizontal radial direction. By jetting in a stepwise manner and repeatedly dividing water droplets at each stepwise jetting, water droplets can be efficiently miniaturized in a small space.
It is possible to obtain an effective fine water droplet amount and a negative ion generation amount with respect to the amount of water supplied to the rotating body 1. Therefore,
There is no need to use a large and expensive circulating pump 15 for supplying water to the first rotating body 1, and fine water droplets are generated by repeatedly performing micronization in the radial direction of the rotating bodies 1 and 2 by water droplet splitting. It is possible to reduce the size of the entire device, particularly in the height direction.

In the above embodiment, each of the vertical walls 1b and 2b of the first rotary body 1 and the second rotary body 2 has a double wall structure. However, the vertical wall 1b of the first rotary body 1 is The single-wall structure with only the wall 1c and the single-wall structure with only the inner vertical wall 2c may be used for the vertical wall portion 2b of the second rotating body 2. In this case, the water droplets are only divided into primary splits which erupt from the inner vertical wall 1c to the inner vertical wall 2c and split, and secondary splits which erupt from the inner vertical wall 2c to the inner surface of the cylindrical container 11 and split. However, the size of the entire device can be reduced.

The structure of each of the vertical walls 1b and 2b of the first rotating body 1 and the second rotating body 2 is not limited to the above example.
This embodiment may be the same as the third embodiment shown in FIG. FIG. 3 shows that the vertical wall portion 1b of the first rotating body 1 has a double wall structure,
The vertical wall portion 2b of the second rotating body 2 has a single wall structure. In this case, water droplet splitting is performed until tertiary splitting. FIG.
Are vertical wall portions 1b, 2 of the first rotating body 1 and the second rotating body 2,
b is a double structure, in which both the inner vertical wall 1c and the outer vertical wall 1e of the first rotating body 1 are formed upward, and the inner vertical wall 2c of the second rotating body 2 is arranged downward between these two. Things. In the case of the embodiment of FIG. 4, water droplet splitting is performed up to the fourth order, as in FIG.

Each of the vertical walls 1b and 2b of the first and second rotating bodies 1 and 2 may have a double or more double-walled structure, but the number of concentrically arranged cylindrical vertical walls is large. I see.
Since the whole apparatus becomes large in size and the splitting of water droplets is almost completed by the tertiary splitting or the quaternary splitting as described above, the vertical walls 1b and 2b are practically limited to a double wall. is there.

[0033]

According to the present invention, the first rotating body and the second rotating body are reversely rotated, and the water supplied to the first rotating body is reversely rotated from the vertical wall of the first rotating body. Since the water is jetted to the vertical wall of the body by centrifugal force to cause collision and splitting, the water droplets can be efficiently refined with high collision energy, and the amount of fine water droplets and the amount of negative ions generated with respect to the supplied water amount can be increased. It becomes possible. In addition, since water droplets are ejected in a substantially horizontal radial direction and split into smaller pieces, the size of the entire fine water drop generator can be reduced, especially in the height direction. Eligible products with both performance and price can be provided.

Further, the vertical wall of the first rotating body is constituted by a plurality of cylindrical vertical walls, and the vertical wall of the second rotating body is disposed in a space between the plurality of vertical walls, whereby water droplets are formed. The number of collision splits increases, and the amount of fine water droplets and the amount of negative ions generated with respect to the amount of supplied water can be further increased, so that a more compact and high-performance fine water droplet generator can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an outline of a fine water droplet generating device according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along the line TT in FIG. 1;

FIG. 3 is a sectional view showing an outline of a main part of a fine water droplet generating device according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing an outline of a main part of a fine water droplet generating device according to a third embodiment of the present invention.

FIG. 5 is a sectional view showing an outline of a conventional fine water droplet generating device.

FIG. 6 is a sectional view schematically showing another conventional fine water droplet generating apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 First rotating body 1a Bottom plate 1b Vertical wall 1c, 1e Vertical wall 1h Water droplet discharge hole 2 Second rotator 2a Bottom plate 2b Vertical wall 2c, 2e Vertical wall 2h Water droplet discharge hole 3 First motor 4 Second motor 11 Cylindrical container 12 Water collision surface

Claims (3)

[Claims] 1. A pair of bottom plates each having a substantially horizontal circular shape and different diameters, and a pair of cylindrical vertical walls vertically extending above a peripheral edge of the bottom plate and having a plurality of water droplet discharge holes. The first rotating body and the second rotating body in a bowl shape, the first rotating body being the upper stage and the second rotating body being the lower stage, and the vertical wall portions of both rotating bodies having different cylinder diameters are substantially concentrically opposed with a predetermined gap. A first motor that rotates the first rotator in a fixed direction about its center line while both rotators are supported substantially coaxially,
A second motor for rotating the rotator in a direction opposite to the first rotator about the center line thereof; and a water supply unit for supplying water from outside to the inside of the first rotator. The water supplied into the first rotating body is spouted from a water droplet discharge hole in the vertical wall of the first rotating body to the inner surface of the vertical wall of the second rotating body by centrifugal force to make the water fine. Fine water droplet generator. 2. A cylindrical vertical wall portion of at least the first rotating body of the first rotating body and the second rotating body, each comprising a plurality of cylindrical vertical walls concentrically suspended with a predetermined gap. 2. The fine water droplet generating device according to claim 1, wherein a vertical wall portion of the second rotating body is disposed at a center position of the cylindrical space between the plurality of vertical walls. 3. The first rotator and the second rotator are housed in a cylindrical container, and the inner peripheral surface of the cylindrical container is provided with water droplet discharge holes on the outermost peripheral surface of the concentrically arranged vertical walls of both rotators. 3. The fine water droplet generator according to claim 1, wherein the jetted water droplets are made to collide with each other to make the water droplets finer.