JP2007024421A - Mist generating method, and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mist generating method, and its device using a flow of air or the like in a driving means in regard to mist generation. <P>SOLUTION: Mist 18 is generated from a liquid surface by passing gas (air 6) along the liquid surface 4 of a liquid (water 2), narrowing a passing area (a slit part 12) of the gas on the liquid surface in a particular place of the liquid surface, contacting the accelerated gas to the liquid surface, and passing it through the passing area. The mist is generated from the particular place of the liquid surface by including the liquid (the water 2) to be atomized, an air flow supply means (an air supply part 8) for passing the gas over the liquid surface of the liquid, and passing area setting means (a partition plate 10, the slit part 12) for setting the narrow passing area for passing through the gas in the particular place on the liquid surface, and passing the accelerated gas through while contacting it to the liquid surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a mist generating method and apparatus for generating mist from a liquid such as water using a gas such as air as a driving means.

  Forms for generating mist necessary for humidification of living spaces such as indoors include spraying high-pressure water from nozzles, spraying water in the form of mist using centrifugal force of the motor, There are things that make water mist by sonic vibration. Examples of spraying high-pressure water from a nozzle include spraying water and compressed air simultaneously from a nozzle having a diameter of about 0.2 mm. In the case of using the rotational force of the motor, for example, water is supplied to a rotating disk that rotates at high speed, and water is formed into a thin film on the disk, and the mist is generated by colliding with the eliminator surrounding the disk from the periphery of the disk. In addition, there are things that are scattered in the air. In addition, in the case of mist-like water by ultrasonic vibration, a ceramic vibrator is installed under the water surface of about several centimeters as an ultrasonic generation source, and a fountain-like water column is formed on the water surface by ultrasonic vibration. There is a thing which generates fog from its tip and scatters it.

Moreover, regarding such mist generation, there is one that refines water with a rotating body (Patent Document 1).
JP 2000-33216 A

  By the way, regarding the generation of mist, spraying high-pressure water from a nozzle is constituted by a pressurizing pump, a water supply pipe, a nozzle, and the like, which requires a compressor and may cause clogging of the nozzle. A motor that uses the rotational force of the motor is composed of a rotating disk, an eliminator, a water supply pipe, and the like, but it is necessary to periodically clean the disk and the like. In the case of mist-like water by ultrasonic vibration, a vibrator that generates ultrasonic waves is installed in a tank in which water is stored, but the vibrator is vulnerable to adhesion of scales and molds. You must pay attention to maintenance management such as cleaning.

  Moreover, in what was disclosed by patent document 1, the fan etc. for discharge | releasing the mist generated with the rotary body are needed.

Therefore, the present invention relates to mist generation, and an object thereof is to provide a mist generation method and apparatus using a gas such as air as driving means.

  In order to achieve the above object, a first aspect of the present invention is a mist generating method in which a gas is caused to flow along a liquid surface of the liquid, and the gas on the liquid surface at a specific location of the liquid surface. The mist is generated from the liquid surface by narrowing the passage area and bringing the gas at a high speed into contact with the liquid surface and passing through the passage area.

  With such a configuration, a specific location on the liquid level is set as a passage area, and when the gas accelerated at the specific location passes through the liquid surface and passes through, the gas serves as a driving means to mist the liquid. To do.

  In order to achieve the above object, in the mist generation method described above, the passband may be adjusted to adjust the conversion rate of the liquid into the mist.

  In order to achieve the above object, the liquid may be water or warm water in the mist generation method described above.

  In order to achieve the above object, a second aspect of the present invention is a mist generator, a liquid to be misted, a gas supply means for flowing a gas over the liquid surface, and a specification on the liquid surface A narrow passage region that allows the gas to pass therethrough, and passage region setting means that allows the gas that has been accelerated to contact the liquid surface to pass therethrough, and generates mist from the specific portion of the liquid surface. It is a configuration.

  With such a configuration, the gas whose speed has been increased in the passage region of the liquid level set by the passage region setting means contacts the liquid surface, and the liquid is misted using the passing gas as the driving means.

  In order to achieve the above object, a third aspect of the present invention is a mist generator, a container for storing a liquid to be misted, a gas supply means for supplying a gas, and a liquid surface of the liquid. And a partition plate for restricting the passage of the gas, and a passage area for the air is set on the liquid surface, which is set between the partition plate and the liquid surface. And a slit portion that allows the mist to be generated from the specific portion of the liquid level.

  According to such a configuration, since the slit portion serving as an air passage region is formed between the partition plate installed at a specific location of the liquid to be mist and the liquid surface, the speed of passage through the slit portion is increased. The generated gas comes into contact with the liquid surface, and mist is generated from the liquid using this gas as a driving means.

  In order to achieve the above object, in the mist generator described above, the container may be provided with a shielding space provided with the partition plate and opened to the outside air through the slit portion.

  In order to achieve the above object, the mist generator described above may be provided with a slit adjusting means for maintaining the interval between the partition plate and the liquid surface at a predetermined interval.

  In order to achieve the above object, the mist generator described above may be provided with a fluid replacement means for replenishing the container with the liquid and maintaining a predetermined distance between the partition plate and the liquid surface. .

  According to the present invention, the following effects can be obtained.

  (1) Since the mist is generated from a liquid such as water by using a gas such as air for the driving means, the generated mist can be released together with the gas that is the driving means.

(2) A mist can be generated with a simple configuration, the number of parts is small, and maintenance is easy.

[First Embodiment]

  A first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing a mist generation method and its principle according to the first embodiment.

  In this mist generation method, as shown in FIG. 1A, for example, air 6 is flowed as a gas along the water surface 4 of the water 2 as a liquid surface. For example, an air supply unit 8 is installed as a gas supply unit that supplies a gas for generating an air current, and the air 6 is supplied from the air supply unit 8. A partition plate 10 is provided as a passage region setting means for setting an arbitrary passage region on the water surface 4 at a specific location on the water surface 4 to which the air 6 is supplied, and between the partition plate 10 and the water surface 4 is provided. The slit portion 12 is set as a pass band. The interval d of the slit portion 12 may be an interval necessary for speeding up the supplied air 6, bringing the slit portion 12 into contact with the water surface 4, and flowing from the closed space portion 14 to the free space portion 16. The closed space portion 14 is, for example, a space portion for confining the air 6 supplied with a partition plate 10 in part and for releasing the air 6 from the slit portion 12 to the free space portion 16.

  With such a configuration, as shown in FIG. 1B, the air 6 supplied from the air supply unit 8 passes from the closed space portion 14 through the slit portion 12 and flows to the free space portion 16 side. At that time, since the slit portion 12 has a narrower pass band than the closed space portion 14, the air 6 passing through the slit portion 12 is speeded up, and the high-speed flow comes into contact with the water surface 4. When such air 6 passes, the lower water surface 4 of the partition plate 10 is pushed down according to the wind pressure, and a contact pressure is locally generated on the water surface 4. As a result, activation and cavitation of water particles on the water surface 4 on the lower surface side of the slit portion 12 are caused. Due to the contact between the air 6 and the water surface 4 forming such a high-speed flow, the surface tension of the water surface 4 is also applied, and the water 2 is misted due to the drag against the passing air 6 or the like. The generated mist 18 is pushed away by the passing air 6 and flows toward the free space 16 side. As long as the air 6 is continuously supplied, the mist 18 is generated without stopping.

  In this way, since the gas such as air 8 is used as the driving means for misting the liquid such as water 2, it is only necessary to generate an air flow necessary for misting, and the mist 18 can be formed with a very simple configuration. Can be generated.

  In this mist generation method, the speed of the air 6, the wind pressure, and the contact pressure with the water surface 4 depend on the supply amount of the air 6 from the air supply unit 8 and the interval between the slit portions 12, A desired mist amount can be achieved by adjusting the distance d between the slit portions 12.

  Further, in this mist generation method, water 2 is used as a liquid for generating mist 18, but it may be warm water, oil, aqueous solution, or the like.

[Second Embodiment]

  A second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a diagram illustrating a configuration example of a mist generating apparatus according to the second embodiment. 2, the same parts as those in FIG. 1 are denoted by the same reference numerals.

  The mist generating device 20 includes a container 22 for storing water 2 to be misted. A partition plate 10 is installed in the container 22 to form a primary chamber 26 and a secondary chamber 28. The primary chamber 26 forms the closed space portion 14 described above, and the secondary chamber 28 forms the free space portion 16 open to the outside air. The above-described slit portion 12 is formed between the partition plate 10 and the water surface 4, and the slit portion 12 constitutes an air passage as a passage area of the air 6. Water 2 is supplied to the container 22 so that the slit portion 12 having the above-described distance d is formed, and the water level is maintained.

  Therefore, a blower port 30 is formed in the primary chamber 26, and a blower fan 32 constituting the air supply unit 8 is installed in the blower port 30, and the blower fan 32 is driven by a motor 34. The air 6 generated by the blower fan 32 is supplied to the closed space portion 14 of the primary chamber 26, passes through the slit portion 12, and flows to the secondary chamber 28 side. In the secondary chamber 28, an outflow port 36 through which the mist 18 flows out into the atmosphere is formed.

  In such a configuration, by driving the blower fan 32, the air 6 sent from the blower opening 30 to the primary chamber 26 is slit 12 formed between the partition plate 10 and the water surface 4 from the primary chamber 26. Through the secondary chamber 28. At that time, the air 6 flows into the secondary chamber 28 while contacting the water surface 4 of the slit portion 12 at a high speed, and causes cavitation and the like on the water surface 4, so that the water 2 is misted. The mist 18 generated at the lower portion of the slit portion 12 and on the secondary chamber 28 side is pushed away by the air 6 flowing into the secondary chamber 28 and discharged together with the air 6 from the outlet 36 of the secondary chamber 28 into the atmosphere. The flow of the air 6 generated by the blower fan 32 also serves as a conveying means for the mist 18.

  When the mist 18 passes through the air passage leading to the outflow port 36, the mist 18 having large particles falls on the water surface 4, collides with the wall surface of the secondary chamber 28, and flows down to the water surface 4 through the wall surface. Accordingly, the mist 18 discharged from the outlet 36 is of a small particle.

  Thus, according to the mist generating device 20, the mist 18 can be generated by using the air 6 as a driving means with a simple structure, and the mist 18 can be diffused into the air using the air 6. it can.

[Third Embodiment]

  Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 3 is a diagram illustrating a configuration example of a mist generating apparatus according to the third embodiment. In FIG. 3, the same parts as those in FIG.

  In the mist generating device 20, when the water 2 changes to the mist 18, the water 2 is consumed correspondingly and the water level is lowered. Further, the generation of the mist 18 is closely related to the interval d of the slit portion 12. That is, when the water 2 is reduced due to the generation of the mist 18 and the water surface 4 is lowered, the air passage of the slit portion 12 is expanded, the passage speed of the air 6 is slowed, and the generation rate of the mist 18 is reduced. Therefore, in order to maintain the generation rate of the mist 18 constant, it is necessary to adjust the amount of air supplied from the air supply unit 8 or to maintain the interval d of the slit unit 12 at a desired interval. Adjustment of the space | interval d of the slit part 12 has the method of raising the water surface 4 by water replenishment, and the method of lowering the partition plate 10. FIG.

  In the mist generating apparatus 20 shown in FIG. 3, a water replenishing section 38 is provided as a liquid replenishing means. The water replenishing section 38 is configured to supply the water 2 to the container 22 in accordance with the descent of the water surface 4 due to the generation of the mist 18. In this case, the water replenishing section 38 is provided with a water replenishing tank 40 for storing water 2 to be replenished, and the lower end surface 44 of the water replenishing port 42 of the water replenishing tank 40 is slightly lowered from the lower end surface 46 of the partition plate 10. By immersing in the water surface 4, the distance d of the slit portion 12 is set with a level difference between the lower end surfaces 44 and 46. In this case, the water level h is maintained by the distance between the lower end surface 44 of the water replenishing port 42 and the bottom surface 48 of the container 22.

  With such a configuration, the water surface 4 descends due to the generation of the mist 18, but when the lower end surface 44 of the water replenishing port 42 moves away from the water surface 4 due to the descending, air enters the water replenishing tank 40 from the water replenishing port 42. The water 2 in the water replenishing tank 40 is pushed down by the amount that the air has entered, and the container 22 is replenished by that amount. Since this water replenishment is maintained because the water replenishment port 42 is closed by the water surface 4, the descent of the water surface 4 is supplemented by the water replenishment to maintain a constant water level, and the interval d between the slit portions 12 is maintained constant. Is done. Therefore, stable mist generation is maintained.

[Fourth Embodiment]

  A fourth embodiment of the present invention will be described with reference to FIG. FIG. 4 is a diagram illustrating a configuration example of a mist generating apparatus according to the fourth embodiment. In FIG. 4, the same parts as those in FIG.

  As shown in FIG. 4A, the mist generating device 20 makes it possible to adjust the height of the partition plate 10 according to the descent of the water surface 4 accompanying the mist generation (arrow a), and the distance d between the slit portions 12. Is configured to be kept constant. The partition plate 10 is installed in the primary chamber 26 or the secondary chamber 28 so as to be movable up and down, and is provided with a water level sensor 50 that detects the water level of the water surface 4, and is partitioned by the lifting mechanism 52 by the detected water level of the water level sensor 50. The plate 10 is moved up and down to a predetermined position and maintained. The water level sensor 50 includes, for example, two electrodes, and can detect the water level at the timing when both electrodes are submerged.

  With such a configuration, as shown in FIG. 4B, when the water surface 4 is lowered, the slit portion 12 is maintained at a constant distance d by being lowered in the direction indicated by the arrow b correspondingly. be able to. Therefore, stable mist generation is maintained.

  In this case, a configuration may be adopted in which a float or the like is provided on the lower surface side of the partition plate 10 so that the partition plate 10 is floated on the water surface 4 and the interval d between the slit portions 12 is maintained constant.

[Fifth Embodiment]

  A fifth embodiment of the present invention will be described with reference to FIG. FIG. 5 is a diagram illustrating a configuration example of a mist generating apparatus according to the fifth embodiment. In FIG. 5, the same parts as those in FIG.

  As shown in FIG. 5A, the mist generating device 20 makes it possible to adjust the angle θ of the partition plate 10 in accordance with the lowering of the water surface 4 accompanying the mist generation (arrow c), and the interval d between the slit portions 12. Is configured to be kept constant. The partition plate 10 is installed in the primary chamber 26 or the secondary chamber 28 so as to be movable up and down, and a water level sensor 50 that detects the water level of the water surface 4 is provided. The angle adjustment mechanism unit 54 uses the water level detected by the water level sensor 50. The partition plate 10 is moved up and down to a predetermined position and maintained. The water level sensor 50 includes, for example, two electrodes, and can detect the water level at the timing when both electrodes are submerged.

  With this configuration, as shown in FIG. 5B, when the water surface 4 is lowered, the partition plate 10 is lowered in the direction indicated by the arrow e correspondingly, and the slit portion 12 is set at a constant interval d. Can be maintained. Therefore, stable mist generation is maintained.

In this case, the distance d between the slit portions 12 may be determined by the weight of the partition plate 10 and the wind pressure of the air 6.

INDUSTRIAL APPLICABILITY The present invention can generate mist from a liquid such as water using a gas such as air as a driving means, can diffuse the mist into the air with a simple configuration, can be widely used such as humidification, and is useful. It is.

It is a figure which shows the mist generating method and its principle which concern on 1st Embodiment. It is a figure which shows the structural example of the mist generator which concerns on 2nd Embodiment. It is a figure which shows the structural example of the mist generator which concerns on 3rd Embodiment. It is a figure which shows the structural example of the mist generator which concerns on 4th Embodiment. It is a figure which shows the structural example of the mist generator which concerns on 5th Embodiment.

Explanation of symbols

2 Water (liquid)
4 Water surface (liquid surface)
6 Air (gas)
8 Air supply part (gas supply means) 10 Partition plate (passage area setting means)
12 Slit (passage area)
DESCRIPTION OF SYMBOLS 14 Closed space part 16 Free space part 18 Mist 20 Mist generator 22 Container 26 Primary room 28 Secondary room 30 Blower port 32 Blower fan 36 Outlet port 38 Water supply part 42 Water supply port 50 Water level sensor 52 Lifting mechanism part d space | interval

Claims (8)

  While flowing the gas along the liquid surface, the gas passage area on the liquid surface is narrowed at a specific portion of the liquid surface, and the gas that has been accelerated is brought into contact with the liquid surface and passes through the passage area. To generate mist from the liquid surface. The mist generating method according to claim 1,
A method of generating mist, wherein the passband is adjusted to adjust a conversion rate of the liquid into the mist. The mist generating method according to claim 1,
The method for generating mist, wherein the liquid is water or warm water. Liquid to be misted,
Gas supply means for flowing gas over the liquid surface;
A narrow passage region for allowing the gas to pass through a specific location on the liquid surface, and a passage region setting means for allowing the gas to be brought into contact with the liquid surface and passing therethrough;
And a mist generating device for generating mist from the specific portion of the liquid surface. A container for storing the liquid to be misted;
Gas supply means for supplying gas;
A partition plate standing on the liquid surface of the liquid and restricting the passage of the gas;
A slit portion that is set between the partition plate and the liquid surface to set the air passage area on the liquid surface, and allows the gas that has been increased in speed to contact the liquid surface and pass through;
And a mist generating device for generating mist from the specific portion of the liquid surface. In the mist generating apparatus according to claim 5,
A mist generating apparatus comprising: a shielding space provided to the outside through the slit portion and provided with the partition plate. The mist generator according to claim 5, wherein
A mist generating apparatus comprising a slit adjusting means for maintaining a predetermined distance between the partition plate and the liquid surface. In the mist generating apparatus according to claim 5,
A mist generating apparatus comprising: a replenishing means for replenishing the container with the liquid and maintaining a predetermined distance between the partition plate and the liquid surface.

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