JPS5831227B2 - Ultrasonic fog generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic fog generator, and particularly to an ultrasonic fog generator that has a simple structure and can efficiently eject a mist of uniform particles.

As is well known, an ultrasonic fog generator that uses an ultrasonic element to atomize a liquid, generally referred to as an ultrasonic atomizer or an ultrasonic nebulizer, produces atomized atomized material (aerosol) obtained by its ultrasonic dispersion effect. ) is attracting attention because the particles are extremely fine, on the micron scale, and are uniform.

However, in order to use this ultrasonic fog generator industrially,
It must be able to efficiently generate a large amount of smoke per hour, stably and over a long period of time, and also be able to take out the smoke well and blow it out to the outside.These conditions must be met. To the best of the inventor's knowledge, there are no ultrasonic fog generators that can do this.

Moreover, since the smoky particles obtained by this ultrasonic fog generator are unstable and easily bond, it has been difficult to extract the smog evenly and efficiently.

Therefore, the present invention was developed focusing on the above-mentioned points, and an air box is installed at the top of the liquid tank. Carrier air is uniformly distributed and introduced into the liquid tank and brought into contact with the smoke, and this smoke is removed by the air. It is an object of the present invention to provide an ultrasonic fog generator capable of efficiently and stably extracting uniform particle mist and spraying it to the outside by leading it to the take-out side from a take-out duct formed through a box, Specifically, there is a liquid tank with an upward opening that can freely atomize the liquid via an ultrasonic element, and a liquid tank that is installed at the opening of this liquid tank so that air for transporting the smoke can be evenly distributed and supplied to the liquid surface. an air box, a number of take-out ducts that are formed through the air box from the liquid tank side to the other outlet side and uniformly introduce smoke from the lower end opening and lead it out to the extraction side; a collection duct whose opening is connected to the outlet side of the air box and is formed to spray the smoke led out from the takeout duct to the outside;
The purpose of the present invention is to provide an ultrasonic mist generator that avoids this problem.

To explain the details based on the illustrated implementation side, FIG. 1 shows a schematic sectional view of an ultrasonic fog generator according to the present invention, and this ultrasonic fog generator includes a liquid tank 1, an air box 2, ,
It is mainly intercepted from the takeout duct 3 and the collection duct 4.

In addition, 5 in the figure is a base into which the operation panel and other parts are incorporated, and 6
is the case.

The liquid tank 1 is located in the upper part of the case 6 and has an upward opening, and the lower part 7 of the liquid tank 1 is provided with ultrasonic elements 8a in number and position corresponding to the take-out duct 3, which will be described later. The sonic element 8a is connected to an ultrasonic oscillator 8b, which is provided with a plurality of ultrasonic oscillators arranged in parallel and superimposed below, and atomizes the liquid 9 in the liquid tank through the ultrasonic element 8a to atomize the liquid 9 in a desired amount and uniformly. Try to get a fine mist.

In addition, the liquid tank 1 has a maximum liquid level and a minimum liquid level determined in advance, and a usage range set between these levels. Furthermore, an overflow pipe 10 is provided at the bottom so that the liquid can be discharged from the overflow pipe 10 at all times when not in use, thereby cleaning the liquid level and preventing freezing in winter. I am trying to do this.

Moreover, a notch 13 is formed at the upper end of the overflow pipe 10, so that the cleaning and anti-freezing can be carried out with just the notch 13 if necessary. When starting the ultrasonic element 8a, it also serves to lower the liquid level that has risen when not in use so that the optimum liquid level can be obtained.

The air box 2 is provided at the opening of the liquid tank 1 so as to cover the entire opening, and supplies air for transporting smoke to the liquid surface while distributing it evenly. At the same time, a plurality of air supply holes 15 are formed on the side of the blower with an external air filter.
Evenly distribute the air from 16 to the internal space 14
It is designed so that it can be introduced into the

The air box 2 is formed so that a large number of take-out ducts 3 are passed through between the upper and lower plates 17 and 18, and the lower plate 18 has a plurality of air distribution holes 19 around the outside of each take-out duct 3. The air introduced into the air box only from this distribution hole 19 is uniformly distributed and supplied to the liquid tank side 21.

A skirt 20 is provided on the outer periphery of the bottom of the air box 2 and has a length that reaches into the liquid level below.

Due to the presence of this skirt 20, the air distributed from the distribution hole 19 is taken out only through the take-out duct 3, which will be described later, and conveys the smoke without being diffused or leaked to the outside.

The take-out ducts 3 are arranged in multiple stages so as to penetrate through the upper and lower plates 17 and 18 of the air box 2, and each lower end thereof protrudes from the lower surface of the lower plate 18 of the air box 2 and faces the liquid level. ing.

These many take-out ducts 3 are arranged in a staggered manner in order to take out the smoke evenly, and the smoke is evenly introduced from the lower end opening of each duct together with the aforementioned distributed air, and is led out to the take-out side 22. .

The collecting duct 4 has a base end opening 23 connected to the outlet side of the air box 2, and serves to collect the smoke led out from the take-out duct 3 and spray it to the outside, and when collecting, it combines the particles of the smoke. A tapered curve is formed from the proximal end to the distal end to prevent this from happening.

The collecting duct 4 is detachable from the liquid tank and the air box to facilitate internal repair.

Although not shown, a pipe or the like is attached to the tip of this collective duct so that the smoke can be sprayed to a desired location.

Next, the effect will be explained.

First, a liquid is supplied into the liquid tank via a liquid supply pipe (not shown).

When the liquid level exceeds the lowest liquid level and reaches the lower limit of the preset usage range, each ultrasonic oscillator 8b and ultrasonic element that receive an activation signal via the float switch start operating, causing the liquid in the liquid tank to begins to become atomized.

In this case, each ultrasonic element is provided at a corresponding position below each take-out duct, so the liquid level in the portion corresponding to the bottom opening of the take-out duct is raised by the ultrasonic element, leaving a slight gap at the bottom opening of the duct. As a result, the tip part enters into the duct, and smoke is generated only at the lower end part of each duct.

Then, the blower 16 with an air filter is operated in conjunction with the ultrasonic element or independently.

Then, the air is dispersed by the plurality of air supply holes 15 of the air box 2 and evenly introduced into the internal space.

This air flows downward from the air box 2 through a plurality of air distribution holes 19 formed around the outside of each take-out duct 3 and is evenly distributed and supplied to the liquid tank side 24 along each take-out duct 3. The liquid contacts the liquid surface and is introduced into the duct through the gap between the raised liquid surface and the duct, contacts the smoke, and is led out to the extraction side 22 along with the smoke.

At this time, the air supplied from the air distribution hole 19 is diffused and prevented from leaking by the skirt 20, and is evenly distributed, so that it hangs straight down to the liquid surface, and as soon as it hits the liquid surface, it is introduced into the turn direction, that is, into the take-out duct. To efficiently extract a mist of uniform particles without combining the particles.

The smoke led out from each takeout duct 3 is collected in a collection duct 4 and sprayed to a desired location by a suitable pipe or the like attached to the tip.

Since the collecting duct 4 is provided with a tapered curve so as not to combine the particles, the uniform particle smoke taken out is efficiently sprayed to the outside as it is.

By the way, the ultrasonic oscillator 8b and the same element 8a continue to operate, but when the liquid level reaches the upper limit of the usable range, the supply of liquid is stopped via the float switch, and when the liquid level reaches the lower limit of the usable range. Since the liquid is supplied when the liquid level drops, the distance from each ultrasonic element 8a to the liquid level becomes the set distance, and the ultrasonic element 8a is used at the optimum liquid level level.

In addition, by constantly supplying liquid when not in use and discharging the liquid from the upper end opening and/or notch of the overflow pipe, the liquid surface is constantly cleaned and the liquid is prevented from freezing in winter.

As explained above, when using the ultrasonic fog generator according to the present invention, an air box is provided above the liquid tank in which the liquid can be atomized through the ultrasonic element, and air for transporting the smoke is supplied through the air box. is uniformly distributed and supplied to the liquid tank and brought into contact with the smoke, and the smoke is evenly led out to the extraction side through the lower end openings of a number of takeout ducts formed through the air box, and collected in a collection duct. As a result, there is almost no binding of fume-like particles, and the structure is simple, allowing for efficient and stable extraction of homogeneous particles.
It is ideal for use in grain tempering machines that require a large amount of moisture in micron-sized, uniform particles.

In addition, a large number of ultrasonic elements corresponding to the large number of take-out ducts from which smoke is taken out are installed at the bottom of the liquid tank, corresponding to the positions directly below each take-out duct, and a large number of ultrasonic elements are arranged below the bottom of the liquid tank in parallel and in a superposed state. Since the sonic oscillator is connected to the ultrasonic element, it is possible to efficiently generate a large amount of smoke inside the takeout duct by utilizing the rise in the liquid level. Despite having the same elements, the entire structure can be made compact.

Furthermore, since the air box is provided with a skirt that surrounds the takeout duct, the air for conveyance is not diffused or leaked, making it extremely efficient.

In addition, since an overflow pipe is installed in the liquid tank and a notch is provided at the upper end of the pipe, it is laborious to constantly drain the liquid from this notch when not in use to clean the liquid level and prepare for reuse. This can be done without the need for water, and it has great effects such as preventing the liquid from freezing in the winter.

[Brief explanation of drawings]

Fig. 1 is an overall schematic sectional view of the ultrasonic fog generator according to the present invention, Fig. 2 is an enlarged sectional view showing the relationship among the liquid tank, air box, and takeout duct, and Fig. 3 is the distribution hole of the air box. FIG. 4 is a bottom view showing the air supply hole of the air box, and FIG. 4 is a side view showing the air supply hole of the air box. In the figure, 1...Liquid tank, 2...Air box,
3...Tick-out duct, 4...Collection duct, 7...Liquid tank bottom, 8...Ultrasonic element, 9... Liquid, 10...Overflow pipe, 11...Float chamber, 12
...Float switch, 13...Notch, 14...Inner space of air box, 15...
...Air supply hole, 17...Top plate, 1
8... Lower plate, 19... Air distribution hole, 20... Skirt, 23... Base end opening of collecting duct.

Claims (1)

[Scope of Claims] 1. A liquid tank with an upward opening in which liquid can be atomized freely via an ultrasonic element, which is provided at the opening of the liquid tank to evenly distribute and supply air for transporting smoke to the liquid surface. A flexible air box, a large number of take-out ducts that are formed through the air box from the liquid tank side to the other outlet side so as to uniformly introduce smoke from the lower end opening and lead it out to the outlet side, and , a collection duct whose base end opening is connected to the outlet side of the air box and is formed so as to spray the smoke led out from the take-out duct to the outside. 2. The ultrasonic elements are provided at corresponding positions below the bottom of the liquid tank, directly below each takeout duct, to obtain a large amount of smoke, as set forth in claim 1. Ultrasonic fog generator. 3 The air box has a partitioned space inside, has a plurality of air supply holes on the side, has a large number of take-out ducts penetrating between the upper and lower plates, and is located on the lower plate. Multiple air distribution holes are formed around the outside of each takeout duct, and the air introduced from the air supply hole is evenly distributed from the air distribution hole, and the air is passed from the liquid tank side to the takeout side through the takeout duct to form smoke. 2. The ultrasonic mist generator according to claim 1, wherein the ultrasonic mist generator is configured to take out the mist evenly. 4. The ultrasonic wave generator according to claim 1, wherein the collecting duct is removable from the liquid tank and the air box, and has a tapered curve from the base end to the distal end. Fog generator.