Fine mist generating device

Abstract

[Problem] To provide a fine mist generating device which has a simple structure, can increase the rotational speed of a rotating body and increase the diameter of a disk shape, can increase the capacity of fine mist, and can improve both the durability and production efficiency of the device. [Solution] A plurality of first magnets (41) (one example of a first magnetic body) are disposed at substantially equal intervals in the circumferential direction of a rotating body (20) so that the radial separation distances from a rotation axis (C1) of the rotating body (20) are substantially the same in an annular spherical surface section (22B) on the outer circumferential surface (22) of the rotating body (20) of the present disclosure. A plurality of second magnets 42 (second magnetic bodies) having the same polarity as the first magnets 41 are disposed at substantially equal intervals in the rotation direction of the rotating body 20, and are disposed facing each of the first magnets 41, so that when the rotating body 20 is rotationally driven by the rotation drive unit 30 to approach the first magnets 41, the magnetic force of the second magnets 42 is applied to the first magnets 41.

Description

Technical Field

[0001] The present invention relates to a fine mist generating device, which can produce natural salt or the like by making a liquid such as seawater into a fine mist state, for example. Background Art

[0002] As a device for making a liquid such as seawater into a fine mist state (fine mist), the inventor of the present invention proposed a device in which the liquid such as seawater is supplied to the central part of a rotating disk rotating at high speed, and the supplied liquid diffuses along the surface of the rotating disk by centrifugal force and has a uniform film thickness (for example, refer to Patent Document 1). And, in the device proposed here, a stop wall is erected at the outer peripheral edge of the rotating disk, and the diffused liquid collides with the stop wall and further scatters, thereby generating fine mist. By the generation of the fine mist, water is evaporated, thereby producing natural salt.

[0003] Furthermore, the inventor of the present invention also proposed a device in which a rebound wall is disposed close thereto with a predetermined clearance space from the outer periphery of the rotating disk, instead of the stop wall disposed at the outer peripheral edge of the rotating disk (for example, refer to Patent Document 2). In the device proposed here, since the rotating disk and the rebound wall are separately provided, bending stress or shear stress or the like generated on the device body can be suppressed during high-speed rotation. As a result, in the device proposed here, damage to the device itself can be prevented, and long life can be achieved.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2008-12390

[0007] Patent Document 2: Japanese Unexamined Patent Application Publication No. 2008-132445 Summary of the Invention

[0008] Problems to be Solved by the Invention

[0009] As described above, the devices described in Patent Document 1 and Patent Document 2 both supply a liquid to the central part of a rotating disk, and utilize the action of centrifugal force to make it collide with an obstacle wall (stop wall or rebound wall) disposed on the radially outer side, thereby generating fine mist.

[0010] In such a device, it can be said that there is a correlation between the amount of fine mist generated and the intensity of centrifugal force. In order to effectively obtain the action of centrifugal force, the rotating disk must be rotated at high speed. Specifically, when the rotating disk is rotationally driven by a motor, precession motion or shaft jitter during high-speed rotation of its motor shaft and the rotating disk must be prevented, and the support of the rotating disk must be stabilized. And, in order to achieve a large capacity of fine mist, the rotating disk must also be enlarged.

[0011] However, in the devices of Patent Document 1 and Patent Document 2, it is difficult to further increase the rotational speed and size of the rotating disk to further increase the liquid supply amount, and it is difficult to achieve a large capacity of the fine mist. It can be said that there is room for improvement in the devices of Patent Document 1 and Patent Document 2.

[0012] Moreover, if the liquid supply amount per unit time is observed macroscopically, it can be regarded as roughly uniform, but if observed microscopically, there are slight fluctuations. If the rotational speed of the rotating disk changes from 5,000 revolutions per minute to about 10,000 revolutions per minute, even if it is slight, the motor shaft may shake due to such fluctuations (unbalance). In such a case, the bearing supporting the motor shaft may be damaged or even destroyed, and as a result, the motor itself may be damaged. When the motor is damaged, its replacement and repair take time, and there is a concern about reducing the production efficiency of the fine mist. Also, it becomes inefficient to prepare multiple spare motors etc. to prevent motor damage.

[0013] Furthermore, since such a device operates while continuously supplying liquid, it is preferably a device with a small number of parts and a simple structure. In this case, maintenance management can be easily carried out, and the durability of the device can be improved to achieve a long service life.

[0014] The present invention has been completed in view of the above circumstances, and provides a fine mist generating device with a simple structure, which can achieve a high rotational speed of the rotating body and a large diameter of the disk shape to realize a large capacity of the fine mist, and improve both the durability and production efficiency of the device. Also, a fine mist generating device is provided that can stably support the drive shaft of the rotary drive unit and prevent damage to the rotary drive even when the liquid supply amount fluctuates macroscopically or microscopically over time.

[0015] Technical solution for solving the problem

[0016] The above object of the present invention is achieved by the following structure. (1)

[0018] A fine mist generating device, comprising:

[0019] A rotating body having a substantially uniform spherical surface portion in its circumferential direction, forming a recess portion inside which liquid is supplied, and disposed such that the central axis of the spherical surface portion coincides with its rotation axis; and

[0020] A rotary drive unit disposed such that the rotation axis of the rotating body coincides with its drive axis, and rotationally driving the rotating body,

[0021] At least a part of the outer peripheral surface of the rotating body is formed with an inclined surface that is inclined in the circumferential direction of the rotating body and is inclined toward the opening direction of the recess portion as it advances radially outward substantially uniformly,

[0022] Each of the plurality of first magnetic bodies is disposed at substantially equal intervals in its circumferential direction in such a manner that the radial separation distance from the rotation axis of the rotating body in the inclined surface is substantially the same.

[0023] A plurality of second magnetic bodies having the same polarity as the first magnetic bodies are disposed at substantially equal intervals in the rotation direction of the rotating body, and are disposed facing each of the first magnetic bodies so that when the rotating body is rotationally driven by the rotation driving unit and approaches the first magnetic body, their magnetic forces act on the first magnetic body. (2)

[0025] A fine mist generating device, comprising:

[0026] A rotating body having a substantially uniform spherical surface portion in its circumferential direction, having a recess portion inside which liquid is supplied, and disposed such that the central axis of the spherical surface portion coincides with its rotation axis; and

[0027] A rotation driving unit disposed such that the rotation axis of the rotating body coincides with its driving axis, and rotationally driving the rotating body.

[0028] At least a part of the outer peripheral surface of the rotating body forms an inclined surface that is inclined in the opening direction toward the recess portion as it advances radially outward in a substantially uniform manner in the circumferential direction of the rotating body.

[0029] The first magnetic body extends in a band shape in its circumferential direction in such a manner that the radial separation distance from the rotation axis of the rotating body in the inclined surface is substantially the same.

[0030] A plurality of second magnetic bodies having the same polarity as the first magnetic bodies are disposed at substantially equal intervals in the rotation direction of the rotating body, and are disposed facing the first magnetic body so that their magnetic forces act on the first magnetic body. (3)

[0032] The fine mist generating device according to (1) or (2),

[0033] The first magnetic body and the second magnetic body are arranged such that when the rotating body is rotationally driven by the rotation driving unit and each of the first magnetic body and the second magnetic body is closest, the magnetic force surfaces of the first magnetic body and the second magnetic body become substantially parallel. (4)

[0035] The fine mist generating device according to (1) or (2),

[0036] The inclined surface is formed to have a convex curved surface. (5)

[0038] The fine mist generating device according to (1) or (2),

[0039] The recess has a flat surface at its bottom,

[0040] The spherical surface portion is formed in an annular shape and is connected to the periphery of the flat surface at its inner edge. (6)

[0042] The fine mist generating device according to (1),

[0043] The number of the first magnetic bodies is a natural number multiple of the number of the second magnetic bodies. (7)

[0045] The fine mist generating device according to (1),

[0046] The number of the second magnetic bodies is a natural number multiple of the number of the first magnetic bodies. (8)

[0048] The fine mist generating device according to (1) or (2),

[0049] The liquid is seawater.

[0050] If the structure of the above (1) is adopted, the rotating body is supported by the rotation driving part at the position of its center, and is well balanced and supported at multiple positions on the radially outer side by the magnetic forces of the first magnetic body and the second magnetic body. Thereby, even when the rotating body rotates at a high speed, the axial jitter of the rotation axis of the rotating body can be suppressed, and the large diameter of the rotating body can be achieved. As a result, the large capacity of the fine mist is realized, and as a result, both the durability and the production efficiency of the device can be improved. And since it is a structure in which the first magnetic body and the second magnetic body are prepared and attached, the structure is not complicated and is a simple structure. And even when the supply amount of the liquid changes macroscopically or microscopically over time, the drive shaft of the rotation driving part can be stably supported to prevent damage to the rotation drive.

[0051] If according to the structure of (2) above, the rotating body is supported by the rotation driving part at its central position, and at positions on the radially outer side, it is well-balancedly supported at multiple points by the magnetic forces of the first magnetic body and the second magnetic body. Thereby, even when the rotating body rotates at high speed, shaft jitter of the rotation axis of the rotating body can be suppressed, and an increase in the diameter of the rotating body can be pursued. Therefore, a large capacity of fine mist is achieved, and as a result, both the durability and production efficiency of the device can be improved. Also, since it is a structure in which the first magnetic body and the second magnetic body are prepared and attached, the structure does not become complicated and is a simple structure. Also, even when the supply amount of the liquid changes macroscopically or microscopically over time, the drive shaft of the rotation driving part can be stably supported, preventing damage to the rotation drive. And, in this case, the first magnetic body is extended in a band shape in its circumferential direction in such a manner that the radially separated distance from the rotation axis of the rotating body in the inclined plane is substantially the same. Therefore, when rotating at high speed, a magnetic force is continuously generated between the first magnetic body and the second magnetic body, and thus the rotating body can be supported more stably.

[0052] If according to the structure of (3) above, the first magnetic body and the second magnetic body are arranged such that the magnetic force surfaces of the first magnetic body and the second magnetic body are substantially parallel. Therefore, the rotating body rotating at high speed can be supported more balancedly and firmly by the magnetic force.

[0053] If according to the structure of (4) above, through the shape of its outer peripheral surface, the directions in which the magnetic forces of the first magnetic body and the second magnetic body act can be made to point more toward the horizontal direction, and the rotating body can be more balancedly and stably supported even during high-speed rotation.

[0054] If according to the structure of (5) above, the liquid supplied to the recessed part of the rotating body first contacts the flat part of the recessed part, and at that moment, the liquid expands radially outward in a thin film state by the centrifugal force of the rotating body. Further, the liquid moves upward along the spherical surface part of the recessed part while expanding radially outward, and at this time, it expands radially outward while receiving mechanical resistance. Thereby, when leaving the outer edge of the rotating body, seawater can be made to fly radially outward in a finer state.

[0055] If according to the structure of (6) above, the balance of the support for the rotating body in the radial direction is further improved, and the rotating body can be stably supported even in the case of high-speed rotation.

[0056] If according to the structure of (7) above, the number of the second magnetic bodies can be more than the number of the first magnetic bodies, further improving the balance of the support in the radial direction. Therefore, the stability of the rotation of the rotating body can be ensured, and the weight of the rotating body can be reduced to lower the inertia during rotation, achieving further high-speed rotation.

[0057] If according to the structure of the above (8), the fine mist generating device of the present invention is used to make seawater fly in all directions in a finely atomized state to produce natural salt. Since this natural salt only evaporates the moisture in the components of seawater, it is rich in mineral components.

[0058] Advantages of the Invention

[0059] If according to the present invention, it has a simple structure, and it is possible to increase the rotational speed of the rotating body and increase the large diameter of the disc shape to achieve a large capacity of fine mist, improving both the durability and production efficiency of the device. Moreover, even when the supply amount of the liquid changes macroscopically or microscopically over time, the drive shaft of the rotation drive unit can be stably supported to prevent damage to the rotation drive.

[0060] The above is a simple description of the present invention. In addition, by referring to the drawings and reading the following detailed embodiments (hereinafter referred to as "embodiments"), the details of the present invention will be further clarified. Description of the Drawings

[0061] Figure 1 is a front sectional view showing an example of the structure of the fine mist generating device according to the first embodiment of the present invention.

[0062] Figure 2 is for explaining Figure 1 an enlarged view of the main part showing an example of the structure and installation position of the first magnet and the second magnet shown.

[0063] Figure 3 is for explaining Figure 2 a top view showing an example of the installation position of the first magnet shown.

[0064] Figure 4 is for explaining Figure 2 a top view showing an example of the installation position of the second magnet shown.

[0065] Figure 5 is for explaining the appearance of producing natural salt using the Figure 1 fine mist generating device shown, as an example of a front sectional view.

[0066] Figure 6 is a top view showing an example of the structure of the first modification of the first embodiment.

[0067] Figure 7 is a top view showing an example of the structure of the first magnet of the second modification of the first embodiment.

[0068] Figure 8 is a top view showing an example of the structure of the second magnet of the second modification of the first embodiment.​​​​​​​​

[0069] Figure 9 is a top view schematic diagram showing an example of the structure of the second magnet of the third modification of the first embodiment. Detailed Embodiment

[0070] Hereinafter, embodiments of the fine mist generating device of the present invention will be specifically disclosed and described in detail with appropriate reference to the accompanying drawings.

[0071] However, unnecessary detailed descriptions may sometimes be omitted. For example, detailed descriptions of well-known matters or repeated descriptions of substantially the same structures may sometimes be omitted. This is to avoid making the following descriptions unnecessarily lengthy and to make it easier for those skilled in the art to which the present invention pertains to understand. Also, each of the accompanying drawings should be observed with the orientation of the reference numerals.

[0072] Furthermore, the accompanying drawings and the following descriptions are provided to enable those skilled in the art to which the present invention pertains to fully understand the present disclosure, and are not intended to limit the subject matter recited in the claims thereby.

[0073] For example, in the following embodiments, the case where seawater is used as the liquid to be made into fine mist is described, but it is not limited thereto. The present invention can also be applied to various liquids. However, when the embodiments are applied to seawater, high-quality natural salt rich in mineral components can be produced.

[0074] (Technical Significance of the Present Invention)

[0075] Explain the technical significance of the present invention.

[0076] Hereinafter, multiple embodiments of the present invention will be described in detail. However, according to the present invention, it is possible to achieve high-speed rotation of the rotating body and large diameter of the disk shape to realize a large capacity of fine mist, and to improve both the durability and production efficiency of the device. Also, even when the supply amount of the liquid varies macroscopically or microscopically over time, the drive shaft of the rotation drive unit can be stably supported, preventing damage to the rotation drive.

[0077] In particular, according to the present invention, it is possible to achieve a large diameter of the disk shape of the rotating body. For example, if the radius becomes twice, the area becomes four times, and further, the thickness of the liquid (such as seawater) supplied when the rotating body rotates becomes one-fourth at the peripheral portion of the rotating body as a theoretical value.

[0078] Here, generally, when the radius of the rotating body elongates, it becomes easier to lose balance in the direction crossing the radial direction of the rotating body in proportion to the length of the radius. Its influence becomes very large in terms of torque, and it may apply excessive force to parts of the rotation drive unit of the rotating body such as bearings, accelerating the deterioration of the bearings and leading to failures.​

[0079] In the present invention, even when the diameter of the rotating body is increased, imbalance can be prevented, and the stability of rotation can be achieved during high-speed rotation. As a result, for example, when the diameter of a rotating body with a radius of 25 cm is increased to 2000 mm, and the fine mist efficiency of the liquid (vaporization efficiency in the case of seawater) is optimal at 250 mm, when it is set to 200 cm, 64 times the amount of liquid can be supplied, that is, the production efficiency becomes 64 times. As a result, due to the increase in the diameter of the rotating body, for example, the force acting on the bearing is absorbed, and the production efficiency is significantly improved.

[0080] In order to improve the production efficiency in this way, the fine mist generating device of the present invention has a special structure as in the embodiment described below.

[0081] (First Embodiment)

[0082] Based on Figures 1 to 5 The first embodiment of the fine mist generating device 10 of the present invention will be described.

[0083] [·Regarding the overall outline of the fine mist generating device]

[0084] While referring to Figure 1 , an example of the overall outline of the fine mist generating device 10 will be described.

[0085] Figure 1 It is a front view sectional view showing an example of the structure of the fine mist generating device 10 of the present embodiment.

[0086] As Figure 1 shown, the fine mist generating device 10 of the present embodiment is configured to include a rotating body 20, a rotation driving unit 30, a water supply port 11 (refer to Figure 4 ), a plurality of support rods 12, a plurality of first magnets 41 (an example of a first magnetic body), and a plurality of second magnets 42 (an example of a second magnetic body).

[0087] The rotating body 20 has a recessed portion 21 and is formed in a container shape. The rotating body 20 is composed of metal parts such as stainless steel or titanium, and is formed by deep drawing or stamping, etc., but the forming method is not limited, and various forming methods can be adopted.

[0088] In addition, in the present embodiment, the radius of the rotating body 20 is set to about 150 mm, but it is not limited thereto, and since it is configured to include the first magnet 41 and the second magnet 42 as described later, its size can also be set larger to about 1500 mm in radius, etc.

[0089] The recessed portion 21 has a circular outer peripheral shape and has a depth downward, and forms the inner peripheral surface of the rotating body 20. Thereby, the recessed portion 21 delimits a primary accommodation space for seawater SW (an example of a liquid) supplied from the water supply port 11.

[0090] Specifically, the recessed portion 21 has a circular bottom surface portion 21A and an annular spherical surface portion 21B. The circular bottom surface portion 21A of the recessed portion 21 has a circular outer shape and its surface is formed in a flat shape, and is connected to the inner edge of the annular spherical surface portion 21B of the recessed portion 21 at its periphery. The annular spherical surface portion 21B of the recessed portion 21 is formed to have a substantially uniform and asymptotic concave curved surface in the circumferential direction of the rotating body 20. Moreover, the rotating body 20 is arranged such that the central axis of the annular spherical surface portion 21B of the recessed portion 21 coincides with the drive shaft C2 (refer to the following description) of the rotation drive unit 30.

[0091] For the outer peripheral surface 22 of the rotating body 20, a circular bottom surface portion 22A and an annular spherical surface portion 22B (an example of an inclined surface) are also arranged corresponding to (following) the recessed portion 21 (its inner peripheral surface). Similarly, the circular bottom surface portion 22A of the outer peripheral surface 22 has a circular outer shape and its surface is formed in a flat shape, and is connected to the inner edge of the annular spherical surface portion 22B of the outer peripheral surface 22 at its periphery. The annular spherical surface portion 22B of the outer peripheral surface 22 is formed to have a substantially uniform and asymptotic convex curved surface in the circumferential direction of the rotating body 20. That is, the rotating body 20 as a whole is formed in a bowl shape with substantially the same thickness.

[0092] In addition, the central axes of the circular bottom surface portion 21A of the recessed portion 21, the annular spherical surface portion 21B of the recessed portion 21, the circular bottom surface portion 22A of the outer peripheral surface 22, and the annular spherical surface portion 22B of the outer peripheral surface 22 are arranged in alignment.

[0093] And for the annular spherical surface portion 22B of the outer peripheral surface 22, in other words, in at least a part of the outer peripheral surface 22 of the rotating body 20, it can also be said that there is a part where an inclined surface that is inclined toward the opening direction of the recessed portion 21 as it advances radially outward is formed substantially uniformly in the circumferential direction of the rotating body 20.

[0094] The rotation drive unit 30 is composed of a motor, for example, and is arranged vertically below the rotating body 20, and its drive shaft C2 is connected to the circular bottom surface portion 22A of the outer peripheral surface 22 of the rotating body 20. As described above, the rotating body 20 is arranged such that the central axis of the annular spherical surface portion 21B of the recessed portion 21 coincides with the drive shaft C2 (refer to the following description) of the rotation drive unit 30.

[0095] The drive shaft C2 of the rotary drive unit 30 is coupled to the rotary body 20 in a manner that coincides with the central axis of the rotary body 20 (specifically, the recessed portion 21 of the rotary body 20 and its annular spherical surface portion 21B). Further, the coupling of the rotary body 20 and the drive shaft C2 is reinforced and firmly fixed by a reinforcing block 13 that abuts against the circular bottom surface portion 22A of its outer peripheral surface 22 and is fixed in the lower vertical direction of the rotary body 20. Through this reinforcement, the rotary body 20 is stably and rotatably supported relative to the drive shaft C2 of the rotary drive unit 30.

[0096] In the fine mist generating device 10 configured as described above, the seawater SW supplied to the recessed portion 21 of the rotary body 20 comes into contact with the surface of the rotary body 20 that is rotating at high speed by the rotary drive unit 30. Through this contact, the seawater SW diffuses in a substantially horizontal direction along the surfaces of the circular bottom surface portion 21A of the recessed portion 21 and its annular spherical surface portion 21B due to the centrifugal force generated in the rotary body 20. At the time of this diffusion, the seawater SW forms into a thin film along the surfaces of the circular bottom surface portion 21A of the recessed portion 21 and its annular spherical surface portion 21B. By expanding in the state of this thin film, the seawater SW becomes fine mist and is radially ejected in all directions when leaving the outer peripheral edge of the rotary body 20.

[0097] A plurality of (eight in the present embodiment) first magnets 41 are respectively attached to the annular spherical surface portion 22B of the outer peripheral surface 22. Further, the second magnets 42 are respectively attached to the front ends of each of the support rods 12.

[0098] The support rods 12 are metal rod-shaped parts, and a plurality of (four in the present embodiment) are arranged at substantially equal intervals along the rotation direction of the rotary body 20 (see Figure 4 ). Moreover, at each support rod 12, its base end portion is fixed to a predetermined mounting surface of the device (meaning a setting surface or the ground: not shown), and its front end is provided with an inclined flat surface 12A. The inclined flat surface 12A is formed in such a manner that the perpendicular direction to its plane faces the annular spherical surface portion 22B of the outer peripheral surface 22, in other words, in such a manner that its plane corresponds to (is arranged substantially parallel to) the annular spherical surface portion 22B of the outer peripheral surface 22.

[0099] Further, the plurality of support rods 12 and the rotary drive unit 30 are mechanically connected to each other via the mounting surface and are relatively and firmly fixed.

[0100] [·Regarding the mounting positions of the first magnet and the second magnet]

[0101] While referring to Figures 2 to 4 , an example of the mounting positions of the first magnet 41 and the second magnet 42 will be described.

[0102] Figure 2To illustrate Figure 1 A main part enlarged view showing an example of the structure and installation position of the first magnet 41 and the second magnet 42 shown in the figure.

[0103] Figure 3 To illustrate Figure 2 A top view schematic diagram showing an example of the installation position of the first magnet 41 shown in the figure.

[0104] Figure 4 To illustrate Figure 2 A top view schematic diagram showing an example of the installation position of the second magnet 42 shown in the figure.

[0105] As shown Figures 2 to 4 The first magnet 41 and the second magnet 42 are permanent magnets formed in a rectangular (elongated) shape and are set to have the same polarity as each other. For example, when the first magnet 41 is an N pole, the second magnet 42 is set to an N pole, and conversely, when the first magnet 41 is an S pole, the second magnet 42 is set to an S pole. The polarity setting can be arbitrary as long as they magnetically repel each other.

[0106] A plurality of first magnets 41 are provided (eight in the present embodiment). Each of the plurality of first magnets 41 has a substantially identical radial separation distance from the rotation axis C1 of the rotating body 20 in the circumferential ball portion 22B of the outer peripheral surface 22 of the rotating body 20 and is disposed at substantially equal intervals in the circumferential direction thereof.

[0107] As described above, the second magnets 42 are each attached to each inclined flat surface 12A at the front end of the plurality of support rods 12. That is, in the present embodiment, four second magnets 42 are arranged in accordance with the number of support rods 12 and are also disposed at substantially equal intervals in the rotation direction of the rotating body 20. That is, in the present embodiment, the number of first magnets 41 is set to a natural multiple (two times in the present embodiment) of the number of second magnets 42.

[0108] In addition, in the present embodiment, the number of first magnets 41 is twice the number of second magnets 42, but it is not limited thereto, and it can also be three times, four times, five times, and the multiple can be arbitrary as long as it is a natural number.

[0109] Moreover, the second magnet 42 is disposed facing each of the first magnets 41 so that when the rotating body 20 is rotationally driven by the rotation driving unit 30 and approaches the first magnet 41, its magnetic force acts on the first magnet 41 (refer to Figure 2 ).

[0110] Moreover, the first magnet 41 and the second magnet 42 are arranged such that when the rotating body 20 is rotationally driven by the rotation driving unit 30 and each of the first magnet 41 and the second magnet 42 is closest, the magnetic force surfaces of the first magnet 41 and the second magnet 42 become substantially parallel.

[0111] [·Regarding the usage method of the fine mist generating device]

[0112] While referring to Figure 5 , the usage method of the fine mist generating device 10 will be described.

[0113] Figure 5 To illustrate the use of Figure 1 A front sectional view showing an example of how the natural salt is produced by the fine mist generating device 10 shown.

[0114] As Figure 5 shown, the rotating body 20 rotates at high speed by the rotation driving unit 30. Its rotation speed is set in the range of, for example, 5000 RPM to 15000 RPM. In this state of high-speed rotation, seawater SW (an example of a liquid) is supplied from the water supply port 11 toward the center of the rotating body 20. Through the said supply, the seawater SW supplied to the center of the rotating body 20 comes into contact with the circular bottom surface portion 21A of the recessed portion 21. Through this contact, due to the centrifugal force of the rotating body 20, first, the seawater SW that has become a thin film diffuses radially outward on the circular bottom surface portion 21A of the recessed portion 21 of the rotating body 20.

[0115] Furthermore, the seawater SW diffuses while rising radially outward along the circular spherical surface portion 21B of the recessed portion 21. There is a positive (vertically upward) inclination in the said rising direction, which becomes a mechanical resistance.

[0116] Therefore, due to the said centrifugal force and this positive inclination, the seawater SW further becomes a thin film while further diffusing radially, and finally the seawater SW becomes fine mist and scatters at the moment of flying out from the rotating body 20. Due to the centrifugal force generated by the high-speed rotation of the rotating body 20, the fine mist of the scattered seawater SW radiates in all directions and scatters to a distance. At this time, it is possible to effectively and instantaneously evaporate only the water to produce natural salt rich in mineral components.

[0117] [·Regarding the features and advantages of the present embodiment]

[0118] As described above, in the fine mist generating device 10 according to the present embodiment, it includes: a rotating body 20 having a substantially uniform annular spherical surface portion 21B (an example of a spherical surface portion) in its circumferential direction, a recess 21 formed inside thereof for supplying seawater SW (an example of a liquid), and arranged such that the central axis of the annular spherical surface portion 21B coincides with its rotation axis C1; and a rotation driving unit 30 arranged such that the rotation axis C1 of the rotating body 20 coincides with its driving axis C2 and rotationally drives the rotating body 20. At least a part of the outer peripheral surface 22 of the rotating body 20 is an annular spherical surface portion 22B (an example of an inclined surface) that is formed substantially uniformly in the circumferential direction of the rotating body 20 and is inclined toward the opening direction of the recess 21 as it advances radially outward. Each of the plurality of first magnets 41 (an example of a first magnetic body) is arranged at substantially equal intervals in its circumferential direction such that the radial separation distance from the rotation axis C1 of the rotating body 20 in the annular spherical surface portion 22B of the outer peripheral surface 22 is substantially the same. The plurality of second magnets 42 (second magnetic bodies) having the same polarity as the first magnets 41 are arranged at substantially equal intervals in the rotation direction of the rotating body 20 and are arranged facing each of the first magnets 41 such that when the rotating body 20 is rotationally driven by the rotation driving unit 30 and approaches the first magnets 41, their magnetic forces act on the first magnets 41.

[0119] Therefore, the rotating body 20 is supported by the rotation driving unit 30 at the position of its center, and at the positions on the radially outer side, it is well-balancedly supported at multiple points by the magnetic forces of the first magnets 41 (an example of a first magnetic body) and the second magnets 42 (an example of a second magnetic body). Thereby, even when the rotating body 20 rotates at a high speed, axial vibration of the rotation axis C1 of the rotating body 20 can be suppressed, and an increase in the diameter of the rotating body 20 can also be achieved. As a result, a large capacity of fine mist is realized, and as a result, both the durability and production efficiency of the device can be improved. And since it is a structure in which the first magnets 41 and the second magnets 42 are prepared and these magnets are attached, the structure does not become complicated and is a simple structure. Also, even when the supply amount of the seawater SW (an example of a liquid) changes macroscopically or microscopically over time, the driving axis C2 of the rotation driving unit 30 can be stably supported, preventing damage to the rotational drive.

[0120] And in the fine mist generating device 10 according to the present embodiment, the first magnets 41 and the second magnets 42 are arranged such that the magnetic force surfaces of the first magnets 41 (an example of a first magnetic body) and the second magnets 42 (an example of a second magnetic body) are substantially parallel.

[0121] Therefore, by the magnetic force, the rotating body 20 rotating at a high speed can be supported more well-balancedly and firmly.

[0122] Further, in the fine mist generating device 10 according to the present embodiment, the annular spherical surface portion 22B (an example of an inclined surface) of the outer peripheral surface 22 of the rotating body 20 is formed as a convex curved surface.

[0123] Therefore, due to the shape of the outer peripheral surface 22, the direction in which the magnetic forces of the first magnet 41 (an example of a first magnetic body) and the second magnet 42 (an example of a second magnetic body) act can be directed more horizontally. As a result, the rotating body 20 can be stably supported with better balance even during high-speed rotation.

[0124] Further, in the fine mist generating device 10 according to the present embodiment, the recessed portion 21 has a circular bottom surface portion 21A (an example of a flat surface portion) at its bottom, and an annular spherical surface portion 21B (an example of a spherical surface portion) is formed in an annular shape and is connected to the peripheral edge of the circular bottom surface portion 21A at its inner edge.

[0125] In this case, the seawater SW (an example of a liquid) supplied to the recessed portion 21 of the rotating body 20 first contacts the circular bottom surface portion 21A (an example of a flat surface portion) of the recessed portion 21, and at that moment, the seawater SW expands radially outward in a thin film state by the centrifugal force of the rotating body 20. Further, the seawater SW moves upward while expanding radially outward along the annular spherical surface portion 21B (an example of a spherical surface portion) of the recessed portion 21. At this time, it expands radially outward while receiving mechanical resistance. Thereby, when leaving the outer edge of the rotating body 20, the seawater SW can be scattered radially outward in a finer state.

[0126] Further, in the fine mist generating device 10 according to the present embodiment, the number of the first magnets 41 (an example of a first magnetic body: eight in the present embodiment) is a natural multiple of the number of the second magnets 42 (an example of a second magnetic body: four in the present embodiment).

[0127] Therefore, the balance of the support for the rotating body 20 in the radial direction is further improved, and the rotating body 20 can be stably supported even during high-speed rotation.

[0128] Further, in the fine mist generating device 10 according to the present embodiment, the liquid supplied to the rotating body 20 is seawater SW. By using the fine mist generating device 10 of the present embodiment, the seawater SW (an example of a liquid) is scattered in a finely atomized state in all directions to produce natural salt. Since this natural salt only evaporates the moisture in the components of the seawater SW, it is rich in mineral components.

[0129] [·Regarding the first modification of the present embodiment]

[0130] While referring Figure 6 the first modification of the present embodiment will be described.

[0131] Figure 6 A top view schematic diagram showing an example of the structure of the first modification of this embodiment.

[0132] As Figure 6 shown, in this modification, different from the foregoing embodiment, instead of arranging a plurality of first magnets 41, the first magnet 41 is arranged in a belt-like shape (strap-like shape) with its ends connected to each other. That is, in this modification of the first magnet 41, on the annular spherical surface portion 22B (an example of an inclined surface) of the outer peripheral surface 22, in such a manner that the separation distance in the radial direction from the rotation axis C1 of the rotating body 20 is substantially the same, the first magnet 41 extends in a belt-like shape in its circumferential direction, that is, it is arranged in a circular ring shape in the same manner.

[0133] That is, in this case, the first magnet 41 (an example of a first magnetic body) extends in a belt-like shape in its circumferential direction on the annular spherical surface portion 22B (an example of an inclined surface) of the outer peripheral surface 22 in such a manner that the separation distance in the radial direction from the rotation axis C1 of the rotating body 20 is substantially the same.

[0134] Therefore, during high-speed rotation, since a magnetic force is continuously generated between the first magnet 41 (an example of a first magnetic body) and the second magnet 42 (an example of a second magnetic body), the rotating body 20 can be more stably supported.

[0135] [·Regarding the second modification of this embodiment]

[0136] While referring to Figure 7 and Figure 8 , the second modification of this embodiment will be described.

[0137] Figure 7 A top view schematic diagram showing an example of the structure of the first magnet 41 of the second modification of this embodiment.

[0138] Figure 8 A top view schematic diagram showing an example of the structure of the second magnet 42 of the second modification of this embodiment.

[0139] As Figure 7 shown, in this modification, the first magnet 41 is provided with four. Each of the four first magnets 41 has a substantially same separation distance in the radial direction from the rotation axis C1 of the rotating body 20 on the annular spherical surface portion 22B of the outer peripheral surface 22 of the rotating body 20, and is arranged at substantially equal intervals in its circumferential direction.

[0140] As Figure 8As shown, the support rods 12 are provided in eight numbers, and a plurality of them are arranged at substantially equal intervals along the rotation direction of the rotating body 20. Then, on each of the support rods 12, a second magnet 42 is attached to its inclined flat surface 12A. That is, in this modified example, eight second magnets 42 are arranged in accordance with the number of support rods 12, and their arrangement is also provided at substantially equal intervals in the rotation direction of the rotating body 20. That is, in the present embodiment, the number of the second magnets 42 is set to be a natural number multiple (in this modified example, twice) of the number of the first magnets 41.

[0141] In addition, in the present embodiment, the number of the second magnets 42 is set to be twice the number of the first magnets 41, but it is not limited thereto, and it may be three times, four times, five times, etc. As long as it is a natural number, the multiple is arbitrary.

[0142] In the case of this modified example, the number of the first magnets 41 provided on the rotating body 20 can be reduced by increasing the number of the second magnets 42. In other words, the number of the second magnets 42 (an example of the second magnetic body) can be more than the number of the first magnets 41 (an example of the first magnetic body), and the balance of the support in the radial direction can be further improved. Therefore, the stability of the rotation of the rotating body 20 can be ensured, and the weight of the rotating body 20 can be reduced to reduce the inertia during rotation, achieving further high-speed rotation.

[0143] Moreover, for the second magnet 42 directly provided on the support rod 12 on the placement surface, when its weight is heavy, it is easy to install even if the number is large. On the other hand, if the first magnet 41 provided on the rotating body 20 is too heavy, it may have an adverse effect on the efficiency of the rotation of the rotating body 20 itself. That is, in order to maintain their repulsive force and improve the production efficiency and rotation efficiency, it is preferable to lighten the first magnet 41 of the rotating body 20, and if the repulsive magnetic force is the same, the side of the support rod 12 is made heavier.

[0144] [·Regarding the third modified example of the present embodiment]

[0145] While referring to Figure 9 , the third modified example of the present embodiment will be described.

[0146] Figure 9 It is a top view schematic diagram showing an example of the structure of the second magnet 42 of the third modified example of the present embodiment.

[0147] As Figure 9 shown, in this modified example, different from the foregoing embodiments and modified examples, the second magnet 42 is not provided in a plurality, but the second magnet 42 is formed in the shape of the strip (belt shape), and is provided in a circular ring shape with its ends connected to each other.

[0148] Therefore, in this modified example, instead of providing a plurality of support rods 12 with the second magnets 42 attached thereto, a cylindrical support portion is provided corresponding thereto for supporting the annular second magnet 42. The support portion is arranged concentrically with the rotation driving portion 30 and surrounds the rotation driving portion 30 at its central portion.

[0149] Moreover, the base end portion of this support portion is fixedly provided on the placement surface, and an inclined conical surface is formed on its front end surface. The inclined conical surface is formed in such a manner that its diameter increases as it advances toward the front end. The annular second magnet 42 is attached to this inclined conical surface.

[0150] In the case of this modified example, by configuring the second magnet in a strip shape (belt shape), the number of first magnets provided on the rotating body can be reduced. Therefore, the stability of the rotation of the rotating body can be ensured, and the weight of the rotating body can be reduced to reduce the inertia during rotation, achieving further high-speed rotation.

[0151] The description of the specific embodiments ends here, but the form of the present invention is not limited to these embodiments and can be appropriately deformed, improved, etc.

[0152] In the first embodiment, the first magnetic body and the second magnetic body are provided as permanent magnets, but it is not limited thereto. As long as it has magnetism, for example, a part of a predetermined metal body can be magnetized and provided.

[0153] Industrial Applicability

[0154] As a fine mist generating device, the present invention has a simple structure, can achieve high-speed rotation of the rotating body and large diameter of the disc shape to realize a large capacity of fine mist, and improve both the durability and production efficiency of the device. It is useful. Also, as a fine mist generating device, the present invention can stably support the drive shaft of the rotation driving portion and prevent damage to the rotation driving even when the supply amount of the liquid changes macroscopically or microscopically over time. It is also useful.

[0155] Description of Reference Numerals

[0156] 10: Fine mist generating device

[0157] 11: Water supply port

[0158] 12: Support rod

[0159] 12A: Inclined flat surface

[0160] 13: Reinforcing block

[0161] 20: Rotating body

[0162] 21: Concave portion

[0163] 21A: Circular bottom surface part (flat surface)

[0164] 21B: Circular ring-shaped spherical surface part (spherical surface part)

[0165] 22: Outer peripheral surface

[0166] 22A: Circular bottom surface part

[0167] 22B: Circular ring-shaped spherical surface part

[0168] 30: Rotation drive part

[0169] 41: First magnet (first magnetic body)

[0170] 42: Second magnet (second magnetic body)

[0171] 52: Support part

[0172] 52A: Inclined conical surface

[0173] C1: Rotation axis

[0174] C2: Drive axis

[0175] SW: Seawater

Claims

1. A fine mist generating device, characterized in that, comprising: a rotating body having a substantially uniform spherical surface portion in its circumferential direction, forming a recess portion inside thereof for supplying liquid, and arranged such that the central axis of the spherical surface portion coincides with its rotation axis; and a rotation driving portion arranged such that the rotation axis of the rotating body coincides with its driving axis, and rotationally driving the rotating body, at least a part of the outer peripheral surface of the rotating body forms an inclined surface that is inclined in the opening direction toward the recess portion as it advances radially outward in the circumferential direction of the rotating body, each of a plurality of first magnetic bodies is arranged at substantially equal intervals in its circumferential direction in such a manner that the radial separation distance from the rotation axis of the rotating body in the inclined surface is substantially the same, a plurality of second magnetic bodies having the same polarity as the first magnetic bodies are arranged at substantially equal intervals in the rotation direction of the rotating body, and are arranged facing each of the first magnetic bodies so that when the rotating body is rotationally driven by the rotation driving portion and approaches the first magnetic bodies, their magnetic forces act on the first magnetic bodies.

2. A fine mist generating device, characterized in that, comprising: a rotating body having a substantially uniform spherical surface portion in its circumferential direction, forming a recess portion inside thereof for supplying liquid, and arranged such that the central axis of the spherical surface portion coincides with its rotation axis; and a rotation driving portion arranged such that the rotation axis of the rotating body coincides with its driving axis, and rotationally driving the rotating body, at least a part of the outer peripheral surface of the rotating body forms an inclined surface that is inclined in the opening direction toward the recess portion as it advances radially outward in the circumferential direction of the rotating body, the first magnetic body is extended in a band shape in its circumferential direction in such a manner that the radial separation distance from the rotation axis of the rotating body in the inclined surface is substantially the same, a plurality of second magnetic bodies having the same polarity as the first magnetic bodies are arranged at substantially equal intervals in the rotation direction of the rotating body, and are arranged facing the first magnetic body so that their magnetic forces act on the first magnetic body.

3. The fine mist generating device according to claim 1 or 2, characterized in that, the first magnetic body and the second magnetic body are arranged such that when the rotating body is rotationally driven by the rotation driving portion and each of the first magnetic body and the second magnetic body is closest, the magnetic force surfaces of the first magnetic body and the second magnetic body become substantially parallel.

4. The fine mist generating device according to claim 1 or 2, characterized in that, the inclined surface is formed to have a convex curved surface.

5. The fine mist generating device according to claim 1 or 2, characterized in that, the recess portion has a flat surface at its bottom, the spherical surface portion is formed in a circular ring shape, and its inner edge is connected to the peripheral edge of the flat surface.

6. The fine mist generating device according to claim 1, characterized in that, the number of the first magnetic bodies is a natural number multiple of the number of the second magnetic bodies.

7. The fine mist generating device according to claim 1, characterized in that, the number of the second magnetic bodies is a natural number multiple of the number of the first magnetic bodies.

8. The fine mist generating device according to claim 1 or 2, characterized in that, the liquid is seawater.

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