JP2008012390A - Mist generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a mist generator in such a simple structure that concretely and easily generates mist and to efficiently enable the generation of mist in a minute fog generator suitable for salt manufactured by vaporizing water by blowing warm air or hot air through turning sea water misty. <P>SOLUTION: A mist can be easily generated only by installing a stripper wall at an outer periphery position of a disc since applying a method for generating minute fog by scattering it through colliding to the stopper wall installed at the outer peripheral position at the time of flowing of a liquid such as sea water supplied to the center part of the disc rotating at a high speed to the outside by centrifugal force. As a result, the constitution of the mist generator can be simplified. When the level of a liquid reaching the outer periphery is too low to cross the stripper wall, a part of the liquid turns misty by colliding to the stopper wall, the other of the liquid turns misty, so that a countless number of water drops are generated by scattering the sea water crossing a bank. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a fine mist generator suitable for salt formation by evaporating moisture by applying warm air or hot air to a fine mist of seawater, but can also be applied to fine atomization of liquids other than seawater.

The inventor of the present invention, in Japanese Patent No. 3250738, obtains salt crystals instantly by spraying warm air or hot air in a fine mist state by scattering seawater with a water wheel type impeller having a radial cavity. A salt production method was proposed. However, when a water turbine type impeller is rotated at a high speed, seawater is sucked together with outside air from the central seawater supply port by centrifugal force and released from each radial cavity. As it scatters, the fine mist collides with the outer protective wall and re-drops the water, reducing the vaporization efficiency. Moreover, since the discharge air flow is too strong in this way, it interferes with pumping fine mist into the salt making chamber with hot air.

In order to solve such problems, the inventors of the present invention proposed in Japanese Patent Application No. 2006-77655 a structure in which the high-speed rotating plate has a concave curved surface and seawater is supplied to the center thereof. According to this structure, since there is no radial cavity that sucks and discharges outside air by centrifugal force, a strong discharge air flow can be suppressed. Therefore, the problems of re-water droplets in the protective wall and the pumping trouble due to hot air are also eliminated.
Patent No. 3250738 Japanese Patent Application 2006-77655

However, it is difficult to process a disk that rotates at a high speed into a concave curved surface. In addition, when seawater is diffused in the radial direction by centrifugal force, a force in the direction of extending the concave curved surface acts, so there is a risk of damaging the concave curved disk coupled with the high-speed rotation at an extremely high speed. is there. Moreover, in order to generate innumerable fine fog, innumerable guide grooves are formed radially, but this processing is also difficult. Also in the case of a conventional water wheel type impeller, a device for making the mist more fine by increasing the number of blades on the outer peripheral side is complicated and difficult to manufacture.

The technical problem of the present invention is to pay attention to such a problem, to realize a fine mist generator with a simple configuration that is robust and easy to manufacture, and to be able to generate fine mist more effectively. It is in.

The technical problem of the present invention is solved by the following means. According to the first aspect of the present invention, when the liquid supplied to the central portion of the disk rotating at high speed flows to the outer periphery by centrifugal force, a fine mist is generated by colliding with the stopper wall provided at the outer peripheral position and scattering. This is a fine mist generation method characterized by being made possible. In this way, when liquid such as seawater supplied to the central part of the disk rotating at high speed flows to the outer periphery by centrifugal force, it collides with the stopper wall provided at the outer peripheral position and scatters to form a fine mist. Therefore, it is possible to easily generate fine mist only by providing a stopper wall at the outer peripheral position of the disk.

As a result, the configuration of the fine mist generating means is simplified. The height of the stopper wall is arbitrary, but if the liquid that has reached the outer periphery is low enough to pass the stopper wall, some liquid may be generated so that the seawater over the embankment is scattered and countless water droplets are generated. Collides with the stopper wall and becomes fine mist, and the other part becomes countless fine mist when crossing the stopper wall by centrifugal force. When the stopper wall is high, some liquid is pushed up by the subsequent liquid so that it rises along the inner wall of the stopper wall and is discharged from the top end of the stopper wall. In addition, although a flat plate is suitable for a disc, a little concave curved surface and a taper-shaped inclination are accept | permitted.

According to a second aspect of the present invention, a stopper wall is provided on the outer periphery of the fine mist generating disk so that it can be rotated at a high speed integrally with the disk, supplied to the center of the disk, and flowed in the outer circumferential direction by centrifugal force. A fine mist generator characterized in that the liquid collides with the stopper wall and scatters. In this way, a stopper wall is provided on the outer periphery of the disk for generating fine mist so that it can rotate at a high speed integrally with the disk, and is supplied to the center of the disk and flowed in the outer peripheral direction by centrifugal force. Therefore, the structure of the fine mist generator is simplified and can be easily manufactured. In addition, a flat plate is sufficient for the disc, but even if it is a concave curved surface, a minute curvature is sufficient, so there is no risk of strength deterioration that would cause damage at high speed rotation. In addition, it may replace with a concave curved surface and may be made into the loose slope which an outer peripheral side becomes a little high.

3. The fine mist generator according to claim 2, wherein the disk is formed of a flat plate, and the stopper wall is perpendicular to the disk or slightly inclined outward. . Thus, since the disk is made of a flat plate, there is no need to form a concave curved surface as in the prior art, manufacturing is easy, and there is no reduction in strength. In addition, since the stopper wall is at a right angle to the disk or slightly inclined to the outer side, when the stopper wall is slightly inclined to the outside, the liquid is subjected to centrifugal force to push up the stopper wall inner surface, and the stopper wall inner surface Ascending operation becomes smoother. As a result, the speed swung off at the top end of the stopper wall does not decrease, and a fine mist is smoothly formed. In addition, it becomes easy to generate | occur | produce the fine mist which bounces by a stopper wall.

The fine mist generator according to claim 2 or 3, wherein a radiating blade is provided so as to surround a central portion of the disc that becomes a liquid inflow portion. is there. Thus, since the radial blades are provided so as to surround the central part of the disk that becomes the inflow part of the liquid, when the disk is used in a standing state, the liquid supplied to the center of the disk is By rotating the blades in the radial direction, it is immediately and effectively dispersed uniformly around the entire circumference, and then stretched into a film along the inner surface of the disk, so that fine mist can be generated uniformly from the entire circumference of the disk. Become. Further, the problem that the liquid flows from the disk and is wasted is also solved.

According to a fifth aspect of the present invention, a donut-shaped disk is provided between the central portion and the outer periphery of the disk, and a plurality of radial blades are erected and fixed between the donut-shaped plate and the disk. The fine mist generator according to claim 2, 3 or 4, wherein a vehicle portion is formed and a plurality of radial cavities are formed. Thus, an impeller is provided by providing a donut-shaped disc between the central portion and the outer periphery of the disc, and fixing a plurality of radial blades between the donut-shaped plate and the disc. Since a plurality of radial cavities are formed, all the liquid supplied to the center of the disk is effectively and evenly distributed over the entire circumference by the radial blades when the disk is used upright. The Thereafter, the film reaches the outer peripheral end while being stretched in a film shape along the inner surface of the disk outside the impeller portion, and collides with the stopper wall to form a fine mist.

In addition, since there is a radial cavity with large suction and discharge of air by centrifugal force, it is possible to accelerate the liquid supplied to the center of the disk and violently collide with the stopper wall, making fine mist more effective Can be generated. Moreover, since the fine mist is rebounded by the stopper wall on the outer periphery of the disk, the fine mist does not scatter to the outer protective wall as in the conventional case, resulting in water droplets. There is no need to increase the wind pressure of the hot air being pumped. Furthermore, since the radial cavity is provided between the central part and the outer periphery of the disk to secure a film forming area, the liquid film extends more thinly on the disk surface between the impeller part and the stopper wall. Can contribute to the generation of finer fog.

As in claim 1, when a liquid such as seawater supplied to the central portion of the disk rotating at high speed flows to the outer periphery by centrifugal force, it collides with a stopper wall provided at the outer peripheral position and scatters. Therefore, it is possible to easily generate the fine mist simply by providing a stopper wall at the outer peripheral position of the disk. As a result, the configuration of the fine mist generating means is simplified. If the height of the stopper wall is low enough to allow the liquid that has reached the outer periphery to pass over the stopper wall, some liquid may enter the stopper wall so that the seawater over the embankment is scattered and countless water droplets are generated. It collides to become a fine mist, and the other part becomes countless fine mist when it crosses the stopper wall by centrifugal force. When the stopper wall is high, some liquid is pushed up by the subsequent liquid so that it rises along the inner wall of the stopper wall and is discharged from the top end of the stopper wall. A flat plate is suitable for the disc, but a slightly concave surface is also possible.

As in claim 2, a stopper wall is provided on the outer periphery of the disk for generating fine mist so that it can rotate at a high speed integrally with the disk, is supplied to the center of the disk, and flows in the outer peripheral direction by centrifugal force. Since the liquid thus made collides with the stopper wall and scatters, the configuration of the fine mist generator is simplified and can be easily manufactured. In addition, a flat plate is sufficient for the disc, but even if it is a concave curved surface, a minute curvature is sufficient, so there is no risk of strength deterioration that would cause damage at high speed rotation. In addition, it may replace with a concave curved surface and may be made into the loose slope which an outer peripheral side becomes a little high.

Since the disk is made of a flat plate as in the third aspect, it is not necessary to form a concave curved surface as in the prior art, and the manufacturing is easy and the strength is not lowered. In addition, since the stopper wall is at a right angle to the disk or slightly inclined to the outer side, when the stopper wall is slightly inclined to the outside, the liquid is subjected to centrifugal force to push up the stopper wall inner surface, and the stopper wall inner surface Ascending operation becomes smoother. As a result, the speed swung off at the top end of the stopper wall does not decrease, and a fine mist is smoothly formed. In addition, it becomes easy to generate | occur | produce the fine mist which bounces by a stopper wall.

Since the radial blades are provided so as to surround the central part of the disk that becomes the inflow part of the liquid as in claim 4, when the disk is used in an upright position, it is supplied to the center of the disk. The liquid is immediately and effectively dispersed evenly around the entire circumference by the rotation of the blades in the radial direction, and then stretched into a film along the inner surface of the disk. Can be generated. The problem of waste of liquid flowing from the disk is also eliminated.

As in claim 5, a donut-shaped disc is provided between the central portion and the outer periphery of the disc, and a plurality of radial blades are set up and fixed between the donut-like plate and the disc. Since the impeller part is formed and a plurality of radial cavities are formed, all the liquid supplied to the center of the disk is effectively and evenly surrounded by the radial blades when using the disk upright. To be distributed. Thereafter, the film reaches the outer peripheral end while being stretched in a film shape along the inner surface of the disk outside the impeller portion, and collides with the stopper wall to form a fine mist.

In addition, since there is a radial cavity with large suction and discharge of air by centrifugal force, it is possible to accelerate the liquid supplied to the center of the disk and violently collide with the stopper wall, making fine mist more effective Can be generated. Moreover, since the fine mist is rebounded by the stopper wall on the outer periphery of the disk, the fine mist does not scatter to the outer protective wall as in the conventional case, resulting in water droplets. There is no need to increase the wind pressure of the hot air being pumped. Furthermore, since the radial cavity is provided between the central part and the outer periphery of the disk to secure a film forming area, the liquid film extends more thinly on the disk surface between the impeller part and the stopper wall. Can contribute to the generation of finer fog.

Next, an embodiment of how the seawater fine mist generator according to the present invention is actualized will be described. FIG. 1 is a longitudinal sectional view at the center position of a high-speed rotating disk 1 for generating fine fog. The disc 1 is a flat disc made of stainless steel or other metal or synthetic resin, and a stopper wall 2 is integrally provided at a right angle at the outer peripheral position thereof. The stopper wall 2 may be integrally formed by welding to the outer periphery of the disk or drawing, and the manufacturing method is not limited. The output shaft 3 of the drive motor M is connected to the center of the back surface of the disc 1.

While the seawater SW is supplied from the seawater supply pipe 4 to the central portion C of the inner surface 1i of the disk 1, the disk 1 is rotated at a high speed, for example, 10,000 rotations per minute by the motor M. As a result, the seawater SW supplied to the central portion C is caused to flow to the outer peripheral side along the inner surface 1i of the disk by centrifugal force, so that it reaches the stopper wall 2 while being gradually stretched into a thin film shape, It collides violently with the stopper wall 2. Then it bounces back into a fine mist 5. Thus, since the disk 1 is a flat plate, it is easy to manufacture and there is no risk of a decrease in strength. However, a slight concave surface and inclination are not impossible.

It is also effective to slightly tilt the stopper wall 2 outward. FIG. 2 is an enlarged vertical sectional view showing the stopper wall 2 on the right side of FIG. 1, whereas the stopper wall 2 of FIG. The solid-line stopper wall 2 is inclined to the outside by an angle α. When the disk 1 is rotated at a high speed, the seawater supplied to the central part of the disk is caused to flow to the outer peripheral side as indicated by an arrow a1 along the disk inner surface 1i by centrifugal force, and finally collides with the stopper wall 2. Bounces back into a fine mist 5.

However, not all seawater is bounced back into the fine mist 5. Some seawater rises along the inner wall of the stopper wall 2 while being pushed up by the following seawater film, and at the top end 2t of the stopper wall 2 It is shaken off by centrifugal force to become a fine mist 5a. Thus, in order to effectively generate the fine mist 5a that climbs along the inner surface of the stopper wall 2 and scatters at the top end 2t, the angle α is smaller than the case where the stopper wall 2 is at a right angle as shown in FIG. It is effective to incline outward. This is because the liquid is easier to climb on the inclined surface than in the case of a right angle.

Moreover, the generation efficiency of the fine mist 5 bounced off by the stopper wall 2 is also increased. When the stopper wall 2 is at a right angle, there are many fine mists 5 that bounce in the direction parallel to the disk inner surface 1i. On the other hand, when the stopper wall 2 is inclined outward by the angle α, the fine mists 5 toward the top end 2t of the stopper wall 2 are more. It occurs in large quantities.

The disc 1 as described above is different from the conventional turbine structure in which a large number of radial cavities that generate a discharge air flow continue to the outer peripheral end. (1) Centrifugal force is applied to the central portion of the disc 1 that rotates at high speed. As the fine mist is not affected by the discharge air flow, the fine mist does not scatter far away and collides with a protective wall to protect against the danger of damage to the rotating plate. Can be prevented. (2) As described above, since the scattering force of the fine mist from the outer periphery is not too strong, the hot air blowing force from the back can be suppressed, and the bypassing of the scattering of the seawater fine mist to the motor output shaft side is also reduced. 1 and 2, since the motor shaft 1 is oriented in the vertical direction, the disc 1 is horizontal. However, the motor shaft 1 can be horizontal and the high-speed rotating disc 1 can be used upright. Needless to say.

As described above, when the disk 1 is used upright by leveling the output shaft 3 of the motor M in FIG. 1, the seawater SW that has come out of the seawater supply pipe 4 is drawn from the front center of the high-speed rotating disk 1. There is a risk that it will flow down and become useless, and the supplied seawater SW as a whole cannot be smoothly used as the fine mist 5. Therefore, as shown in FIG. 3, it is effective to provide, for example, six radial (or radial) blades 6 near the central portion C of the front surface 1i of the disk 1.

Now, when the disk 1 rotates at high speed, the seawater SW supplied from the supply pipe 4 as shown in FIG. 1 to the center C of the disk is dispersed around the entire circumference by the radial blades 6 rotating at high speed. In the state of being uniformly distributed over the entire surface of the disk inner surface 1i, it gradually flows into the outer peripheral side while being stretched into a thin film, and collides with the stopper wall 2 to become the fine mists 5, 5a. Thus, it is not necessary to provide a large number of radial blades 6 provided so as to surround the inflow portion of the seawater SW near the central portion C of the disk 1, and it is sufficient to have about 10 or less. A simple rectangular shape is sufficient.

In the case of a structure in which seawater collides with the outer peripheral stopper wall 2 as in the present invention, a conventional water wheel type impeller structure can be used together in order to increase the collision energy. 4 is an embodiment in which a small impeller portion 7 is provided in place of the radial blade plates 6 of FIG. 3, wherein (1) is a plan view and (2) is an AA cross-sectional view. Reference numeral 8 denotes a radial blade, which is slightly curved in a direction in which the acceleration force of the seawater flow due to centrifugal force increases. In order to sandwich and fix these arc-shaped radial blades 8 in a state of standing between the circular plates 1, donut-shaped disks 9 are overlapped and fixed on the radial blades 8. is there. Needless to say, each radial blade 8 is also fixed to the disk 1 side. According to this structure, radial cavities 10 are formed between the arcuate blades 8 between the doughnut-shaped plate 9 having a width W and the disc 1.

As a result, when the disk 1 is rotated at a high speed while standing as shown in FIG. 3, the seawater supplied to the disk central portion C is moved to the entire circumference of the disk inner surface 1 i by the high-speed rotation of the radial blades 8. It is accelerated toward the stopper wall 2 while being uniformly dispersed. Moreover, since the radial cavities 10 are rotated at a high speed, seawater is sucked together with air from the central portion C of the disk by a centrifugal force and discharged in the radial direction on the same principle as a water wheel type high speed rotating disk. In the film forming region D of the inner surface 1i, it is stretched by a centrifugal force to gradually become a thin film, and finally collides with the stopper wall 2 and rebounds to become fine mists 5 and 5a. When the fine mist wraps around the front surface of the disk 1 and stagnates, the centrifugal force of the radial cavities 10 as described above is sucked together with the seawater by the centrifugal force, so that the stagnation of the fine mist is prevented.

As described above, because the seawater SW is sucked together with the air, it is necessary to arrange the inner ends of the radial blades 8 near the central portion C of the disk 1 to which the seawater SW is supplied. The outer peripheral position of the plate-like plate 9 is desirably arranged closer to the central portion C than the half position of the radius of the disc 1. That is, it is desirable to make the radius of the donut-shaped plate 9 smaller than ½ of the radius of the disc 1 and reduce the size of the impeller portion. As a result, a film-forming region D for making seawater into a thin film can be secured between the impeller portion and the stopper wall 2.

As shown in FIG. 4 (2), each radial blade 8... Has a gap G formed by partially cutting the disk 1 side. Thus, by providing the gap G near the outer periphery of the doughnut-shaped plate 9, the seawater film is made thinner by expanding the film-forming region D on the disc inner surface 1i toward the central portion C side. Can be further refined. Alternatively, the disk 1 can be reduced in size. In addition, about 25-35 cm is suitable for the outer diameter of the disc 1, and about 1-5 cm is suitable for the height of the stopper wall 2, but it is not limited to these dimensions.

In the above embodiment, the mounting posture such as the angle and inclination when the disk 1 is used is arbitrary. In addition, although the example which salt-minates seawater was demonstrated, it cannot be overemphasized that the thought of this invention is applicable also to the fine atomization of liquids other than seawater.

As described above, since the fine mist generator of the present invention is simply provided with the stopper wall integrally on the outer periphery of the disk, the structure is simple and can be manufactured easily and robustly. Moreover, it is possible to effectively generate fine mist.

It is a longitudinal cross-sectional view in the center position of the disk which rotates at high speed. It is the longitudinal cross-sectional view which expanded and showed the stopper wall side of the right side of FIG. This is an embodiment in which a radial blade is provided near the center of the front surface of the disk. It is embodiment which provided the impeller part in the intermediate position of the radial direction of a disc, (1) is a top view, (2) is AA sectional drawing.

Explanation of symbols

1 High-speed rotating disc
2 Stopper wall 3 Motor output shaft
4 Seawater supply pipe
C Central 5 / 5a Fine fog
6 Radial blade 7 Small impeller 8 Arc-shaped radial blade 9 Donut-shaped plate 10 Radial cavity D Film-forming region G Gap

Claims (5)

When the liquid supplied to the center of the disk rotating at high speed flows to the outer periphery due to centrifugal force, it is possible to generate fine mist by colliding with the stopper wall provided at the outer peripheral position and scattering. A feature of fine mist generation. A stopper wall is provided on the outer periphery of the disk for generating fine mist so that it can rotate at a high speed integrally with the disk. A fine mist generator characterized in that it collides and scatters. The fine mist generator according to claim 2, wherein the disc is a flat plate, and the stopper wall is perpendicular to the disc or slightly inclined outward. The fine mist generator according to claim 2 or 3, wherein a radiating blade is provided so as to surround a central portion of the disk which is a liquid inflow portion. An impeller portion is formed by providing a donut-shaped disc between the central portion and the outer periphery of the disc and fixing a plurality of radial blades between the donut-like plate and the disc. 5. The fine mist generator according to claim 2, 3 or 4, wherein a plurality of radial cavities are formed.

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