WO2022190670A1 - Ultrasonic atomization separation device and humidity control system - Google Patents

Abstract

Provided is an ultrasonic atomization separation device in which atomization efficiency can be increased and reduction in positioning accuracy can be allowed. This ultrasonic atomization separation device comprises: an atomizing tank that stores a mixed solution including at least a first solution and second solution and that has a downflow port which is formed on the bottom or side wall thereof through which the mixed solution flows down; and an oscillator that faces the downflow port through the mixed solution and applies ultrasonic waves to the mixed solution. The device atomizes and separates at least a part of the second solution contained in the mixed solution by applying the ultrasonic waves.

Description

Ultrasonic atomization separator and humidity control system

The present disclosure relates to an ultrasonic atomization separation device and a humidity control system. The present disclosure claims priority to Japanese Patent Application No. 2021-040090 filed in Japan on March 12, 2021, the contents of which are incorporated herein.

In the ultrasonic atomization separation device, ultrasonic waves are emitted from the mixed solution containing the separated components toward the surface of the mixed solution, and the liquid column extends vertically upward from the surface of the mixed solution due to the wave pressure of the ultrasonic waves. is formed. Also, the capillary wave is broken on the surface of the liquid column, and the separated components are discharged as fine droplets. Thereby, the separated component is separated from other components contained in the mixed solution.

For example, in the liquid separation device described in Patent Document 1, a liquid containing two or more substances is ultrasonically vibrated to cause a liquid column to protrude from the liquid surface. Also, mist is generated around the liquid column. As a result, the specific liquid is separated at a high concentration (paragraphs 0033, 0034, 0038 and 0045).

Japanese Patent No. 5470514

A large amount of energy is required to form a liquid column by the wave pressure of ultrasonic waves. For this reason, the ultrasonic atomization separator described above has only low atomization efficiency.

In addition, the liquid column formed by the wave pressure of ultrasonic waves is formed by an acoustic flow that exists only in a narrow range. For example, a liquid column is formed by an acoustic stream generated in an area having a diameter of only about 1 mm to 2 mm in the center of the radiation surface of a transducer that emits ultrasonic waves. Therefore, in the ultrasonic atomization separation apparatus described above, high alignment accuracy is required in order to form a liquid column at the position of the ejection port of the nozzle that ejects minute droplets.

This disclosure has been made in view of these problems. SUMMARY OF THE INVENTION An object of the present disclosure is to provide an ultrasonic atomization separation device that can increase the atomization efficiency and allow for lower alignment accuracy.

An ultrasonic atomization separation device according to one aspect of the present disclosure includes an atomization tank containing a mixed solution containing at least a first solution and a second solution, and having a bottom or side wall formed with a flow-down port through which the mixed solution flows down. and a vibrator that faces the flow-down port through the mixed solution and applies ultrasonic waves to the mixed solution, and at least a part of the second solution contained in the mixed solution is vibrated by applying the ultrasonic waves. is atomized and separated.

Further, a humidity control system of another aspect of the present disclosure includes an ultrasonic atomization separation device of one aspect of the present disclosure, and the mixed solution transferred from the ultrasonic atomization separation device absorbs moisture in the air. a first transfer section for transferring the mixed solution flowing down from the flow-down port to the moisture absorbing section; and transferring the mixed solution having absorbed moisture in the air from the moisture absorbing section to the atomization tank. and a second transfer section for carrying out.

According to the present disclosure, it is possible to provide an ultrasonic atomization separation device that can increase the atomization efficiency and allow for lower alignment accuracy.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which illustrates typically the ultrasonic atomization separation apparatus of 1st Embodiment. It is a figure which illustrates typically the ultrasonic atomization separation apparatus of 2nd Embodiment. It is a figure which illustrates the ultrasonic atomization separation apparatus of 3rd Embodiment typically. FIG. 11 is a diagram schematically illustrating an ultrasonic atomization separation device of a first modification of the third embodiment; FIG. 11 is a diagram schematically illustrating an ultrasonic atomization separation device of a second modification of the third embodiment; FIG. 10 is an image showing a liquid column formed when the hole formed in the flow-down port has a circular shape with a diameter of 1.5 mm in the ultrasonic atomization separation device of the first modified example of the third embodiment; FIG. The liquid column formed when the hole formed in the flow-down port in the ultrasonic atomization separation apparatus of the first modification of the third embodiment has an elliptical shape with a long axis length of 2 mm and a short axis length of 1 mm is an image showing. It is a figure which illustrates the ultrasonic atomization separation apparatus of 4th Embodiment typically. FIG. 12 is a diagram schematically illustrating a humidity control system of a fifth embodiment; FIG. FIG. 11 is a diagram schematically illustrating a humidity control system of a sixth embodiment;

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and overlapping descriptions are omitted.

1. First Embodiment 1.1 Outline of Ultrasonic Atomization Separation Device FIG. 1 is a diagram schematically illustrating an ultrasonic atomization separation device of a first embodiment.

The ultrasonic atomization separation device 1 of the first embodiment illustrated in FIG. Separate from other ingredients in it. The separated components separated from the other components may be all of the separated components contained in the mixed solution 91 or may be part of the separated components contained in the mixed solution 91 . When the ultrasonic atomization separation device 1 is incorporated in a humidity control system that absorbs moisture in the air, the ultrasonic atomization separation device 1 separates approximately the same amount of moisture as the moisture absorbed. To separate.

As illustrated in FIG. 1 , the ultrasonic atomization separation device 1 includes an atomization tank 11 and an ultrasonic wave generation mechanism 12 .

The atomization tank 11 accommodates the mixed solution 91 and causes the accommodated mixed solution 91 to flow down to form a liquid column 92 .

The ultrasonic wave generating mechanism 12 generates ultrasonic waves 93 and applies the generated ultrasonic waves 93 to the mixed solution 91 contained in the atomization tank 11 . The ultrasonic wave 93 imparted to the mixed solution 91 propagates through the mixed solution 91 and reaches the liquid column 92 , atomizes the mixed solution 91 forming the liquid column 92 , and forms a mist 94 containing separated components from the liquid column 92 . is released. The mist 94 is fine droplets. Accordingly, the ultrasonic atomization separation device 1 atomizes and separates the separated components contained in the mixed solution 91 from other components contained in the mixed solution 91 by applying the ultrasonic waves 93 to the mixed solution 91 .

1.2 Atomization Tank As illustrated in FIG. 1, the bottom 11b of the atomization tank 11 is provided with a flow-down port 11f. 11 f of side walls of the atomization tank 11 may be equipped with 11 f of flow-down ports.

The flow-down port 11f causes the mixed solution 91 to flow down to form a liquid column 92.

The mixed solution 91 flows down by the weight of the mixed solution 91 itself. That is, the flowing down of the mixed solution 91 is free fall of the mixed solution 91 . Therefore, the liquid column 92 extends vertically.

By forming the liquid column 92 in this manner, the energy required to form the liquid column 92 can be reduced, and the atomization efficiency of the ultrasonic atomization separation device 1 can be increased. In addition, it is possible to allow lower alignment accuracy.

The liquid column 92 may be one vertically continuous liquid column, or may be a set of a plurality of liquid column pieces that are broken and separated from each other in the vertical direction.

A hole through which the mixed solution 91 passes is formed in the flow-down port 11f. The hole has a circular planar shape. The hole may have a planar shape other than a circular planar shape as long as the mixed solution 91 can flow down. For example, the hole may have an oval, square, or polygonal planar shape. The hole has a diameter of 1 mm or more and 5 mm or less. The hole may have a diameter smaller than 1 mm or larger than 5 mm as long as the mixed solution 91 can flow down.

A liquid supply port for supplying the mixed solution 91 from the outside may be formed in the atomization tank 11 . The atomization tank 11 may have a lid that opens and closes the liquid supply port. When the mixed solution 91 is not supplied from the outside, the liquid supply port is closed by the lid.

1.3 Ultrasonic Generating Mechanism As shown in FIG.

The power supply 21 supplies power to the oscillation circuit 22 .

The oscillation circuit 22 operates using the supplied power. The oscillation circuit 22 oscillates a drive signal and supplies the oscillated drive signal to the vibrator 23 .

The vibrator 23 generates an ultrasonic wave 93 according to the supplied drive signal.

The top plate 11t of the atomization tank 11 is formed with an insertion hole 11i. The vibrator 23 is inserted into the insertion hole 11i. Thereby, the radiation surface 23 s of the vibrator 23 is immersed in the mixed solution 91 . Thereby, the vibrator 23 can apply the ultrasonic waves 93 to the mixed solution 91 .

A radiation surface 23 s of the transducer 23 radiates ultrasonic waves 93 . A radiation surface 23s of the vibrator 23 faces downward in the vertical direction and is arranged above the flow port 11f in the vertical direction. Therefore, the radiation surface 23s of the vibrator 23 faces the downstream port 11f, faces the downstream port 11f through the mixed solution 91, and radiates the ultrasonic waves 93 toward the downstream port 11f. As a result, there is no obstacle between the radiation surface 23s of the vibrator 23 and the flow-down port 11f that hinders the propagation of the ultrasonic waves 93. As shown in FIG. Thereby, the ultrasonic wave 93 can be efficiently propagated to the liquid column 92 .

The vibrator 23 has a flat plate shape. As long as the oscillator 23 can apply the ultrasonic wave 93 to the mixed solution 91, the oscillator 23 may have a shape other than the flat plate shape. For example, the vibrator 23 may have a lens-like shape.

The ultrasonic wave 93 desirably has a frequency of 1 MHz or more and 5 MHz or less.

1.4 Suppression of Occurrence of Dry Heating As shown in FIG. 1, the top plate 11t has a concave cross-sectional shape. For this reason, the top plate 11t includes a recessed portion 31 arranged in the central portion and a non-recessed portion 32 arranged in the outer peripheral portion. The recessed portion 31 is arranged vertically below the non-recessed portion 32 . Therefore, the top plate 11t has a step between the recessed portion 31 and the non-recessed portion 32. As shown in FIG. An insertion hole 11 i into which the vibrator 23 is inserted is formed in the recessed portion 31 . Thereby, the atomization tank 11 has a first space 41 formed vertically below the vibrator 23 and a second space 42 formed above the vibrator 23 in the vertical direction. The second space 42 extends vertically upward from at least a portion of the first space 41 . A radiation surface 23 s of the vibrator 23 is exposed to the first space 41 .

The mixed solution 91 is accumulated vertically above the radiation surface 23 s of the oscillator 23 . Therefore, the mixed solution 91 fills the entire first space 41 of the atomization tank 11 and at least partially fills the second space 42 of the atomization tank 11 . Thereby, the radiation surface 23 s of the vibrator 23 exposed to the first space 41 is immersed in the mixed solution 91 . As a result, it is possible to prevent the ultrasonic waves 93 from being radiated from the radiation surface 23s of the transducer 23 in a state where the radiation surface 23s of the transducer 23 is not immersed in the mixed solution 91, thereby preventing empty heating from occurring.

The structure for suppressing the occurrence of empty heating may be a structure different from the structure described above.

1.5 Mixed Solution The mixed solution 91 contains at least a first solution and a second solution.

The first solution and the second solution are two different solutions. For example, the first solution is a solution containing a hygroscopic substance constituting another component, and the second solution is a solution containing water constituting a separate component.

A hygroscopic substance is a substance that dissolves in water or a substance that is miscible with water. As the hygroscopic substance, one hygroscopic substance may be used alone, or two or more hygroscopic substances may be used in combination. Hygroscopic substances include one or both of organic and inorganic materials.

The organic material includes, for example, at least one selected from the group consisting of dihydric or higher alcohols, ketones, organic solvents having an amide group, sugars, and materials used as raw materials for moisturizing cosmetics. It contains at least one selected from the group consisting of the above alcohols, organic solvents having an amide group, sugars, and materials used as raw materials for moisturizing cosmetics and the like. Bivalent or higher alcohols, organic solvents having amide groups, sugars, and materials used as raw materials for moisturizing cosmetics have high hydrophilicity. Therefore, when the organic material contains at least one selected from the group consisting of these, the hygroscopic property of the hygroscopic substance can be increased.

Dihydric or higher alcohol includes, for example, at least one selected from the group consisting of glycerin, propanediol, butanediol, pentanediol, trimethylolpropane, butanetriol, ethylene glycol, diethylene glycol and triethylene glycol.

The organic solvent having an amide group includes, for example, at least one selected from the group consisting of formamide and acetamide.

Sugars include, for example, at least one selected from the group consisting of sucrose, pullulan, glucose, xylose, fructose, mannitol and sorbitol.

Materials used as raw materials for moisturizing cosmetics and the like include at least one selected from the group consisting of 2-methacryloyloxyethylphosphorylcholine (MPC), betaine, hyaluronic acid and collagen.

Inorganic materials are, for example, the group consisting of calcium chloride, lithium chloride, magnesium chloride, potassium chloride, sodium chloride, zinc chloride, aluminum chloride, lithium bromide, calcium bromide, potassium bromide, sodium hydroxide and sodium pyrrolidonecarboxylate. at least one selected from

1.6 Removal of Air Bubbles The ultrasonic atomization/separation device 1 may have a mechanism for removing air bubbles adhering to the radiation surface 23 s of the vibrator 23 . As a result, the state in which the ultrasonic waves 93 cannot be propagated through the mixed solution 91 due to air bubbles adhering to the radiation surface 23s of the transducer 23 can be eliminated.

The mechanism is, for example, a thin tube having one end that contacts the radiation surface 23 s of the oscillator 23 and the other end that is placed outside the mixed solution 91 .

2. Second Embodiment FIG. 2 is a diagram schematically illustrating an ultrasonic atomization separation apparatus according to a second embodiment.

Below, the difference between the ultrasonic atomization separation device 2 of the second embodiment illustrated in FIG. 2 and the ultrasonic atomization separation device 1 of the first embodiment illustrated in FIG. 1 will be described. As for the points that are not explained, the same configuration as that employed in the ultrasonic atomization separation device 1 is also employed in the ultrasonic atomization separation device 2 .

As illustrated in FIG. 2 , the ultrasonic atomization separation device 2 includes a vibrator holding member 13 .

The vibrator holding member 13 is inserted into and removed from the insertion hole 11i formed in the top plate 11t, and is attached to and detached from the atomization tank 11. Thereby, the vibrator holding member 13 and the vibrator 23 can be easily replaced when the ultrasonic atomization/separation device 2 is maintained.

The vibrator holding member 13 has a housing 51 . The housing 51 is arranged in the atomization tank 11 when the vibrator holding member 13 is inserted into the insertion hole 11i formed in the top plate 11t.

A vibrator 23 is fixed to the bottom 51 b of the housing 51 . As a result, the radiation surface 23s of the vibrator 23 is exposed vertically downward.

When the vibrator holding member 13 is inserted into the insertion hole 11i formed in the top plate 11t, the atomization tank 11 and the vibrator holding member 13 are in a sealed state. As a result, it is possible to prevent water from entering the atomization tank 11 and the vibrator holding member 13 from the outside of the atomization tank 11 . In this state, the vibrator holding member 13 is fixed at a fixed position. Thereby, the relative position of the vibrator 23 with respect to the flow-down port 11f can be maintained constant. Also, the distance from the flow-down port 11f to the vibrator 23 can be kept constant. Thereby, the arrangement that can increase the atomization efficiency of the ultrasonic atomization separation device 2 can be maintained.

3 Third Embodiment FIG. 3 is a diagram schematically illustrating an ultrasonic atomization separation device according to a third embodiment.

Below, the difference between the ultrasonic atomization separation device 3 of the third embodiment illustrated in FIG. 3 and the ultrasonic atomization separation device 2 of the second embodiment illustrated in FIG. 2 will be described. As for the points that are not explained, the same configuration as that employed in the ultrasonic atomization separation device 2 is also employed in the ultrasonic atomization separation device 3 .

In the ultrasonic atomization separation device 3, the ultrasonic wave generating mechanism 12 is provided with a sensor 24, as shown in FIG.

The sensor 24 is arranged inside the atomization tank 11 and above the radiation surface 23 s of the vibrator 23 in the vertical direction. The sensor 24 detects the liquid level of the mixed solution 91 .

The oscillation circuit 22 stops oscillating the drive signal when the sensor 24 detects that the liquid level of the mixed solution 91 has become lower than the position where the sensor 24 is installed. Thereby, the vibrator 23 stops emitting the ultrasonic wave 93 when the sensor 24 detects that the liquid level of the mixed solution 91 has become lower than the position. As a result, it is possible to prevent the ultrasonic waves 93 from being radiated from the radiation surface 23s of the transducer 23 in a state where the radiation surface 23s of the transducer 23 is not immersed in the mixed solution 91, thereby preventing empty heating from occurring.

The ultrasonic atomization separation device 3 may be equipped with an electromagnetic valve that opens and closes the flow port 11f. In this case, when the sensor 24 detects that the liquid level of the mixed solution 91 has become lower than the position where the sensor 24 is installed, the solenoid valve closes the flow-down port 11f. As a result, it is possible to prevent the mixed solution 91 from continuing to flow down even though the liquid level of the mixed solution 91 is low. Thereby, it can suppress that empty heating occurs.

FIG. 4 is a diagram schematically illustrating the ultrasonic atomization separation device of the first modification of the third embodiment.

In the ultrasonic atomization separation device 3A of the first modified example of the third embodiment illustrated in FIG. Also, a hole formed in the flow-down port 11f is formed at the tip of the nozzle 55. As shown in FIG. Thereby, the ultrasonic wave 93 can be focused toward the hole. Thereby, the atomization efficiency of 3 A of ultrasonic atomization separation apparatuses can be made high.

FIG. 5 is a diagram schematically illustrating an ultrasonic atomization separation device of a second modification of the third embodiment.

In the ultrasonic atomization separation device 3B of the second modification of the third embodiment illustrated in FIG. 5, the bottom 11b has a conical shape. Moreover, the conical-shaped tip part is provided with 11 f of flow-down ports. Therefore, the bottom 11b has an inclined portion 56 that slopes downward in the vertical direction as it approaches the outlet 11f. This makes it easier for the mixed solution 91 to pass through the holes formed in the flow-down port 11f. As a result, the atomization efficiency of the ultrasonic atomization separation device 3B can be increased.

FIG. 6 is an image showing a liquid column formed when the hole formed in the flow-down port has a circular shape with a diameter of 1.5 mm in the ultrasonic atomization separation device of the first modification of the third embodiment. is. FIG. 7 shows an ultrasonic atomization separation apparatus according to the first modification of the third embodiment in which the hole formed in the flow-down port has an elliptical shape with a major axis length of 2 mm and a minor axis length of 1 mm. 10 is an image showing a liquid column.

In the ultrasonic atomization separation device 3A of the first modification of the third embodiment, the flow velocity and amplitude of the mixed solution 91 flowing down from the flow port 11f are changed by changing the shape of the hole formed in the flow port 11f. can be changed. Thus, by changing the shape of the hole, the position at which the liquid column 92 breaks can be changed. For example, when the hole has a circular shape with a diameter of 1.5 mm, as shown in FIG. 6, the liquid column 92 breaks at a position P1 which is about 5 mm away from the flow port 11f in the vertical direction. Further, when the hole has an elliptical shape with a major axis length of 2 mm and a minor axis length of 1 mm, as shown in FIG. of jet drops occur.

Therefore, in the ultrasonic atomization separation device 3A, the degree of freedom of the parameters of the liquid column 92 is high, and it is possible to select the parameters of the liquid column 92 that can increase the atomization efficiency of the ultrasonic atomization separation device 3A. can. This point also applies to the ultrasonic atomization/ separation devices 1, 2, 3, and 3B described above and the ultrasonic atomization/separation devices 4 and 6, which will be described later.

4. Fourth Embodiment FIG. 8 is a diagram schematically illustrating an ultrasonic atomization separation apparatus of a fourth embodiment.

Below, the difference between the ultrasonic atomization separation device 4 of the fourth embodiment illustrated in FIG. 8 and the ultrasonic atomization separation device 3 of the third embodiment illustrated in FIG. 3 will be described. The same configuration as that employed in the ultrasonic atomization separation device 3 is employed in the ultrasonic atomization separation device 4 as well, except for points that are not explained.

As illustrated in FIG. 8 , the ultrasonic atomization separation device 4 includes a liquid separation tank 14 .

The liquid separation tank 14 separates and recovers the separated components and other components contained in the mixed solution 91 .

As shown in FIG. 8, the liquid separation tank 14 includes a first solution recovery tank 61 and a second solution recovery tank 62.

The first solution recovery tank 61 includes a mixed solution receiving portion 71 arranged vertically below the flow-down port 11f. Thereby, the first solution recovery tank 61 receives the mixed solution 91 flowing down from the flow-down port 11f and recovers the received mixed solution 91 . Also, the first solution recovery tank 61 stores the recovered mixed solution 91 .

The second solution recovery tank 62 is arranged along the liquid column 92 so as to be shifted horizontally from below the flow-down port 11f in the vertical direction. The mist 94 emitted from the liquid column 92 moves vertically downward along the liquid column 92 . As a result, the second solution recovery tank 62 receives the mist 94 emitted from the liquid column 92 and recovers the received mist 94 . In addition, the second solution recovery tank 62 accommodates separated components generated by collecting the recovered mist 94 . Thereby, the separated component can be extracted from the mixed solution 91 .

The ultrasonic atomization separation device 4 does not require a mechanism for conveying the mist 94 when extracting the separated components.

5 Fifth Embodiment 5.1 Outline of Humidity Control System FIG. 9 is a diagram schematically illustrating a humidity control system of a fifth embodiment.

A humidity control system 101 of the fifth embodiment illustrated in FIG. 9 includes the ultrasonic atomization separation device 4 of the fourth embodiment, a humidity control mechanism 111 and a circulation mechanism 112.

The circulation mechanism 112 transfers the mixed solution 91 collected in the first solution collection tank 61 from the flow-down port 11 f to the humidity control mechanism 111 .

The humidity control mechanism 111 sucks air, causes the transferred mixed solution 91 to absorb moisture in the sucked air, and discharges the dehumidified air.

The circulation mechanism 112 further transfers the mixed solution 91 that has absorbed moisture in the air to the atomization tank 11 .

The ultrasonic atomization separation device 4 separates the moisture of the separated components from the mixed solution 91 transported to the atomization tank 11 that has absorbed moisture in the air, and converts the mixed solution 91 from which the moisture has been separated into the first solution. The water is collected in the collection tank 61 and the separated water is collected in the second solution collection tank 62 . Thereby, the ultrasonic atomization separation device 4 regenerates the hygroscopic ability of the mixed solution 91 .

5.2 Humidity Conditioning Mechanism The humidity conditioning mechanism 111 includes an air inlet 121 , a blower 122 , a liquid supply section 123 , a moisture absorption section 124 , a liquid storage tank 125 and an air outlet 126 .

The air intake port 121 sucks air existing in the external space of the humidity control mechanism 111 and guides the sucked air to the moisture absorption part 124 .

The blower 122 is inserted into the air intake port 121. The blower 122 generates a flow of air that flows from the external space of the humidity control mechanism 111 to the external space of the humidity control mechanism 111 through the air inlet 121 , the moisture absorbing portion 124 and the air outlet 126 in sequence.

The liquid supply part 123 is arranged inside the liquid storage tank 125 and arranged vertically above the moisture absorption part 124 . In addition, a large number of supply holes are formed in the liquid supply unit 123 to allow the transported mixed solution 91 to flow downward in the vertical direction. Therefore, the liquid supply unit 123 causes the transported mixed solution 91 to flow downward in the vertical direction. As a result, the liquid supply unit 123 supplies the transported mixed solution 91 to the hygroscopic unit 124 and causes the mixed solution 91 to pass through the hygroscopic unit 124 .

The hygroscopic part 124 is brought into contact with the mixed solution 91 supplied by allowing the guided air to pass through. Thereby, the moisture absorbing part 124 absorbs at least part of the moisture in the air into the mixed solution 91 to generate dehumidified air.

The method of bringing air into contact with the mixed solution 91 in the hygroscopic part 124 may be changed. For example, the system is a stationary system in which the mixed solution 91 is left still in the air flow, a spray system in which the mist-like mixed solution 91 is sprayed in the air flow, and a bubbling system in which air bubbles are generated in the mixed solution 91. Alternatively, the mixed solution 91 may be made to flow down into a medium such as a column or a honeycomb structure in an air flow to permeate into the medium.

The liquid storage tank 125 stores the mixed solution 91 that has passed through the moisture absorption part 124 and absorbed moisture in the air.

The air outlet 126 guides the dehumidified air to the external space of the humidity control mechanism 111 and discharges the guided air.

5.3 Circulation Mechanism The circulation mechanism 112 includes a first liquid introduction section 131 , a second liquid introduction section 132 and a pump 133 .

The first liquid introduction part 131 is a tube, a pipe, or the like. One end of the first liquid introduction part 131 is connected to the first solution recovery tank 61 . The other end of the first liquid introduction portion 131 is connected to the liquid supply portion 123 . Thereby, the first liquid introduction section 131 guides the mixed solution 91 from the first solution recovery tank 61 to the liquid supply section 123 .

The second liquid introduction part 132 is a tube, a pipe, or the like. One end of the second liquid introduction part 132 is connected to the liquid storage tank 125 . The other end of the second liquid introduction part 132 is connected to the atomization tank 11 . Thereby, the second liquid introduction part 132 guides the mixed solution 91 from the liquid storage tank 125 to the atomization tank 11 .

The pump 133 is inserted into the first liquid introducing portion 131 . The pump 133 generates a flow of the mixed solution 91 that flows from the first solution recovery tank 61 to the liquid supply section 123 via the first liquid introducing section 131 .

The first solution recovery tank 61, the first liquid introduction part 131, and the liquid supply part 123 constitute a first transfer part that transfers the mixed solution 91 that has flowed down from the flow-down port 11f to the moisture absorption part 124.

The liquid storage tank 125 and the second liquid introduction section 132 constitute a second transfer section that transfers the mixed solution 91 that has absorbed moisture in the air from the moisture absorption section 124 to the atomization tank 11 .

In the humidity control system 101, it is not necessary to change the phase of the separated component water from liquid to gas in order to regenerate the humidity control ability of the mixed solution 91 and generate the hygroscopic liquid. Therefore, the water content of the separated components can be efficiently separated. Therefore, it is possible to provide the humidity control system 101 with high energy efficiency.

6 Sixth Embodiment FIG. 10 is a diagram schematically illustrating a humidity control system of a sixth embodiment.

Below, differences between the humidity control system 201 of the sixth embodiment illustrated in FIG. 10 and the humidity control system 101 of the fifth embodiment illustrated in FIG. 9 will be described. A configuration similar to that employed in the humidity control system 101 is employed in the humidity control system 201 as well, unless otherwise explained.

As illustrated in FIG. 10 , in the humidity control system 201 , the ultrasonic atomization separation device 6 includes a plurality of ultrasonic wave generating mechanisms 12 . Also, a plurality of flow-down ports 11f corresponding to the plurality of ultrasonic wave generating mechanisms 12 are formed in the bottom 11b.

Each ultrasonic wave generating mechanism 12 generates ultrasonic waves 93 and applies the generated ultrasonic waves 93 to the mixed solution 91 contained in the atomization tank 11 . The ultrasonic wave 93 imparted to the mixed solution 91 propagates through the mixed solution 91 and reaches the liquid column 92 flowing down from the flow-down port 11f corresponding to each ultrasonic wave generating mechanism 12, and the mixed solution constituting the liquid column 92 91 is atomized to release a mist 94 containing separated components from a liquid column 92 .

Also, in the humidity control system 201 , the liquid separation tank 14 includes a plurality of second solution recovery tanks 62 corresponding to the plurality of ultrasonic wave generating mechanisms 12 respectively.

The second solution recovery tank 62 corresponding to each ultrasonic generating mechanism 12 receives the mist 94 released from the liquid column 92 flowing down from the flow-down port 11f corresponding to each ultrasonic generating mechanism 12, and collects the received mist 94. do.

The present disclosure is not limited to the above embodiments, but has substantially the same configuration, the same effect, or the same purpose as the configuration shown in the above embodiment. can be replaced with

Claims (12)

1. an atomization tank containing a mixed solution containing at least a first solution and a second solution, and having a bottom or side wall formed with a flow-down port through which the mixed solution flows;
   a vibrator that faces the flow-down port through the mixed solution and applies ultrasonic waves to the mixed solution;
   An ultrasonic atomization separation device that atomizes and separates at least part of the second solution contained in the mixed solution by applying the ultrasonic waves.
2. The ultrasonic atomization separation device according to claim 1, wherein the flowing down of the mixed solution is free fall of the mixed solution.
3. The ultrasonic fog according to claim 1 or 2, wherein the atomization tank has a first space above which the transducer is arranged, and a second space extending upward from at least a part of the first space. gas separator.
4. The ultrasonic transducer according to any one of claims 1 to 3, further comprising a vibrator holding member that has a housing provided so that the vibrator is exposed downward, and is detachable in the atomization tank. Sonic atomization separator.
5. The ultrasonic atomization separation device according to any one of claims 1 to 4, wherein the flow-down port is provided with a nozzle.
6. The ultrasonic atomization separation device according to any one of claims 1 to 5, wherein the bottom of the atomization tank has an inclined portion inclined toward the flow-down port.
7. The ultrasonic fog according to any one of claims 1 to 6, wherein the bottom of the atomization tank has a conical shape, and the flow-down port is provided at the tip of the conical shape. gas separator.
8. The ultrasonic atomization separation device according to any one of claims 1 to 7, further comprising a sensor that detects the liquid level of the mixed solution.
9. The ultrasonic atomization separation device according to any one of claims 1 to 8, further comprising a first solution recovery tank below the flow-down port for storing the mixed solution that has flowed down from the flow-down port.
10. The ultrasonic atomization separation device according to claim 9, further comprising a second solution recovery tank that stores the atomized second solution.
11. the first solution comprises a hygroscopic substance;
    The ultrasonic atomization separation device according to any one of claims 1 to 10, wherein the second solution is water.
12. The ultrasonic atomization separation device according to claim 11;
    a moisture absorption part for absorbing moisture in the air into the mixed solution transferred from the ultrasonic atomization separation device;
    a first transfer section that transfers the mixed solution that has flowed down from the flow-down port to the moisture absorption section;
    a second transfer section that transfers the mixed solution that has absorbed moisture in the air from the moisture absorption section to the atomization tank;
    Humidity control system.

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