JP2017221926A - Generation device for gas-containing liquid, and treatment mechanism for gas-containing liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a generation device for a gas-containing liquid capable of generating the gas-containing liquid containing fine bubbles at high concentration, and to provide a treatment mechanism for the gas-containing liquid.SOLUTION: A generation device for a gas-containing liquid comprises: a gas-liquid blending part (11) generating a gas-containing liquid by blending a gas and a liquid; a gas-containing liquid treatment part (12) treating the gas-containing liquid supplied from the gas-liquid blending part; and a bubble generation part (13) generating bubbles in the gas-containing liquid supplied from the gas-containing liquid treatment part. The gas-containing liquid treatment part is equipped with: a flow path-forming member (21) having a flow path alternately including plural abdominal parts (21a) having annular inner peripheral surfaces and plural node parts (21b) also having annular inner peripheral surfaces, and conveying the gas-containing liquid along the above flow path; a linear member (24) provided along the flow path in the flow path-forming member; and an obstacle member (25) provided around the linear member in the flow path-forming member and functioning as an obstacle against the flow of the gas-containing liquid.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a gas-containing liquid generating apparatus and a gas-containing liquid processing mechanism, and is applied, for example, for generating nanobubble water.

  In recent years, microbubble water containing microbubbles and nanobubble water containing nanobubbles have attracted attention in various technical fields. Although there is no clear definition of microbubbles or nanobubbles, microbubbles generally refer to bubbles with a particle size (diameter) of about 1 μm to 100 μm, and nanobubbles are bubbles with a particle size (diameter) of less than 1 μm. (See Patent Documents 1 and 2).

Japanese Patent Laying-Open No. 2015-77566 JP 2014-147870 A

  In general, bubbles such as microbubbles and nanobubbles are generated by mixing a gas and a liquid to generate a gas-containing liquid and then injecting the gas-containing liquid. Recent research has shown that bubbles are generated by combining bubble nuclei after bubble nuclei are generated in a gas-containing liquid. A bubble nucleus is an aggregate in which gas molecules before becoming bubbles are separated from liquid molecules. It has also been found that a large number of fine bubbles such as nanobubbles can be generated from a gas-containing liquid containing a large number of bubble nuclei.

  When the gas-containing liquid is used for various applications, the bubbles are desirably fine, and the gas-containing liquid desirably contains fine bubbles at a high concentration. The reason is that fine bubbles persist in the gas-containing liquid for a long time. As described above, a gas-containing liquid containing fine bubbles at a high concentration can be generated from a gas-containing liquid containing bubble nuclei at a high concentration. Therefore, it is required to realize a technique capable of generating a gas-containing liquid containing fine bubbles at a high concentration by generating a large number of bubble nuclei in the gas-containing liquid.

  Further, in recent years, the use of gas-containing liquids is expanding not only in the industrial and general consumption fields, but also in the agricultural and medical fields. Therefore, there is an increasing need for a gas-containing liquid generating apparatus capable of generating a gas-containing liquid containing fine bubbles at a high concentration with a simple structure.

  Then, this invention makes it a subject to provide the gas containing liquid production | generation apparatus and gas containing liquid processing mechanism which can produce | generate the gas containing liquid which contains a fine bubble in high concentration.

  The gas-containing liquid production | generation apparatus of 1 aspect of this invention mixes gas and a liquid, the gas-liquid mixing part which produces | generates a gas-containing liquid, and the gas which processes the said gas-containing liquid supplied from the said gas-liquid mixing part A gas-containing liquid processing unit; and a gas bubble generating unit that generates air bubbles in the gas-containing liquid supplied from the gas-containing liquid processing unit, wherein the gas-containing liquid processing unit has a plurality of annular inner peripheral surfaces. A flow path forming member having a flow path alternately including abdomen and a plurality of nodes having an annular inner peripheral surface, and conveying the gas-containing liquid along the flow path; and in the flow path forming member A linear member provided along the flow path, and an obstacle member provided around the linear member in the flow path forming member and functioning as an obstacle to the flow of the gas-containing liquid. .

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the gas containing liquid production | generation apparatus and gas containing liquid processing mechanism which can produce | generate the gas containing liquid which contains a fine bubble in high concentration.

It is the schematic which shows the structure of the gas containing liquid production | generation apparatus of 1st Embodiment. It is a figure for demonstrating the production | generation process of the bubble nucleus in 1st Embodiment. It is sectional drawing which shows the structure of the bubble nucleus production | generation part of 1st Embodiment. It is sectional drawing for demonstrating the dimension of the bubble nucleus production | generation part of 1st Embodiment. It is the schematic for demonstrating the usage of the bubble nucleus production | generation part of 1st Embodiment. It is an external view for demonstrating the usage of the bubble nucleus production | generation part of 1st Embodiment. It is the schematic which shows the structure of the gas containing liquid production | generation apparatus of the 1st modification of 1st Embodiment. It is the schematic which shows the structure of the gas containing liquid production | generation apparatus of the 2nd modification of 1st Embodiment. It is sectional drawing which shows the structure of the bubble nucleus production | generation part of the 3rd modification of 1st Embodiment. It is sectional drawing which shows the structure of the bubble nucleus production | generation part of the 4th modification of 1st Embodiment. It is the schematic which shows the structure of the gas containing liquid production | generation apparatus of 2nd Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram illustrating the configuration of the gas-containing liquid generation apparatus according to the first embodiment.

  1 includes a gas-liquid mixing unit 11, a bubble nucleus generation unit 12 that is an example of a gas-containing liquid processing unit, a foaming unit 13 that is an example of a bubble generation unit, and a purification tank 14. And. The bubble nucleus generation unit 12 is also an example of a gas-containing liquid processing mechanism.

  The gas-liquid mixing unit 11 mixes the gas 1 and the liquid 2 to generate the gas-containing liquid 3. An example of the gas 1 is oxygen. The code | symbol 1a represents a gas molecule (for example, oxygen molecule). An example of the liquid 2 is water. Reference numeral 2a represents a liquid molecule (for example, a water molecule).

  The bubble nucleus generating unit 12 processes the gas-containing liquid 3 supplied from the gas-liquid mixing unit 11 to generate a large number of bubble nuclei 3 a in the gas-containing liquid 3. The bubble nucleus 3a is an aggregate in which the gas molecules 1a are gathered away from the liquid molecules 2a. For example, the bubble nucleus generating unit 12 can generate a large number of bubble nuclei 3 a in the gas-containing liquid 3 by turbulently flowing the gas-containing liquid 3.

  The foaming unit 13 processes the gas-containing liquid 3 supplied from the bubble nucleus generating unit 12 to generate a large number of bubbles 3 b in the gas-containing liquid 3. The bubble 3b is generated by combining the bubble nuclei 3a. For example, the foaming unit 13 can generate a large number of bubbles 3 b in the gas-containing liquid 3 by injecting the gas-containing liquid 3.

  The gas-containing liquid 3 supplied from the foaming unit 13 is stored in the cleansing tank 14. The gas-containing liquid production | generation apparatus of this embodiment can supply the nanobubble water which contains the nanobubble with a particle size of 50-500 nm to the cleansing tank 14 as the gas-containing liquid 3 in high concentration.

  FIG. 2 is a view for explaining the generation process of the bubble nucleus 3a in the first embodiment.

  FIG. 2A shows a state in which the gas-containing liquid 3 generated by the gas-liquid mixing unit 11 is processed by the bubble nucleus generation unit 12.

  In general, the upper limit of the amount of the gas 1 dissolved in the liquid 2 under normal temperature and pressure conditions is determined by the type of the gas 1 and the liquid 2. In order to dissolve the gas 1 in an amount exceeding this upper limit into the liquid 2, it is necessary to mechanically and forcibly dissolve the gas 1 into the liquid 2 using a pump or the like. The gas-containing liquid 3 thus obtained is referred to as a supersaturated gas-containing liquid.

  When generating bubble nuclei 3a in the gas-containing liquid 3, it has been found that if a supersaturated gas-containing liquid is used as the gas-containing liquid 3, a large number of bubble nuclei 3a can be generated. Therefore, the gas-liquid mixing unit 11 of the present embodiment generates a supersaturated gas-containing liquid as the gas-containing liquid 3. The structure of the gas-liquid mixing unit 11 capable of generating a supersaturated gas-containing liquid will be described later.

  Further, it has been found that the bubble nucleus 3a is generated by applying pressure fluctuation or heat fluctuation (temperature fluctuation) to the gas-containing liquid 3. Therefore, the bubble nucleus generation unit 12 of the present embodiment generates bubble nuclei 3a by applying pressure fluctuations to the gas-containing liquid 3. The structure of the bubble nucleus generation unit 12 that can apply pressure fluctuation to the gas-containing liquid 3 will be described later.

  FIG. 2A shows a state in which pressure fluctuation or heat fluctuation is applied to the gas-containing liquid 3 which is a supersaturated gas-containing liquid. When pressure fluctuation is applied to the gas-containing liquid 3, a portion having a high pressure and a portion having a low pressure are generated in the gas-containing liquid 3. Further, when heat fluctuation is applied to the gas-containing liquid 3, a portion having a high temperature and a portion having a low temperature are generated in the gas-containing liquid 3.

  In this case, the gas molecules 1a gather at a low pressure portion or a high temperature portion. FIG. 2 (b) shows how the gas molecules 1a gather at these portions.

  As a result, as shown in FIG. 2 (c), bubble nuclei 3a that are aggregates of gas molecules 1a are generated. According to the simulation of the generation process of the bubble nucleus 3a, it is found that the particle size of the bubble nucleus 3a is about 0.5 to 1.0 nm.

  FIG. 3 is a cross-sectional view illustrating a configuration of the bubble nucleus generation unit 12 according to the first embodiment.

  The bubble nucleus generation unit 12 includes a flow path forming tube 21, an inlet portion 22, an outlet portion 23, a wire 24, and an obstacle member 25. The flow path forming tube 21 is an example of a flow path forming member. The wire 24 is an example of a linear member.

  The flow path forming tube 21 has a bellows-structured flow path as shown in FIG. 3, and conveys the gas-containing liquid 3 along the flow path. The flow path of the flow path forming tube 21 alternately includes a plurality of abdominal portions 21a having an annular inner peripheral surface and a plurality of node portions 21b having an annular inner peripheral surface. The outermost diameter of each abdomen 21a is set larger than the innermost diameter of each node 21b. In this embodiment, the inner peripheral surface of each abdominal part 21a or each node part 21b extends in an annular shape instead of a spiral shape.

  The flow path forming tube 21 may be formed of a metal such as iron, or may be formed of a nonmetal such as plastic. The flow path forming tube 21 of the present embodiment is formed by connecting a plurality of metal parts, and is configured to be bendable into various shapes. For example, the flow path forming tube 21 can be bent into a U shape or a spiral shape. Thereby, it becomes possible to arrange | position the flow-path formation tube 21 in a narrow space, and to produce | generate many bubble nuclei 3a by meandering of the gas containing liquid 3. FIG.

  The inlet 22 is connected to one end of the flow path forming tube 21, and introduces the gas-containing liquid 3 from the gas / liquid mixing section 11 into the flow path forming tube 21. The inlet portion 22 includes a male screw groove 22a, a first fixing portion 22b, and a first baffle plate 22c.

  The outlet part 23 is connected to the other end of the flow path forming tube 21, and discharges the gas-containing liquid 3 from the flow path forming tube 21 to the foaming part 13. The outlet portion 23 includes a female screw groove 23a, a second fixing portion 23b, and a second baffle plate 23c.

  The male screw groove 22 a is provided on the outer peripheral surface of the inlet portion 22. The female screw groove 23 a is provided on the inner peripheral surface of the outlet portion 23. The male screw groove 22a is used, for example, to connect the flow path forming tube 21 of FIG. Similarly, the female thread groove 23a is used, for example, to connect the flow path forming tube 21 of FIG. In the present embodiment, a female screw groove may be provided on the inner peripheral surface of the inlet portion 22, or a male screw groove may be provided on the outer peripheral surface of the outlet portion 23.

  The first fixing portion 22 b is provided in the inlet portion 22 and is used for fixing one end portion of the wire 24. The second fixing portion 23 b is provided in the outlet portion 23 and is used for fixing the other end portion of the wire 24. In the present embodiment, the positions of both ends of the wire 24 are fixed by the first and second fixing portions 22b and 23b.

  The first baffle plate 22 c is provided in the vicinity of the first fixing portion 22 b in the inlet portion 22 and has a function of stirring the gas-containing liquid 3 in the inlet portion 22. The second baffle plate 23 c is provided in the vicinity of the second fixing portion 23 b in the outlet portion 23 and has a function of stirring the gas-containing liquid 3 in the outlet portion 23. In the present embodiment, the gas-containing liquid 3 is agitated by the first and second baffle plates 22c and 23c, whereby pressure fluctuation is applied to the gas-containing liquid 3, and bubble nuclei 3a are generated in the gas-containing liquid 3. It becomes easy.

  The wire 24 is provided along the flow path in the flow path forming tube 21. One end portion of the wire 24 is fixed by the first fixing portion 22b, and the other end portion of the wire 24 is fixed by the second fixing portion 23b. The wire 24 has a linear shape extending along the flow path, and is arranged at the center of the cross section in the width direction (cross section) of the flow path. The wire 24 of the present embodiment is formed of a metal such as iron, but may be formed of a nonmetal such as plastic. An example of the wire 24 is a stranded wire.

  The obstacle member 25 is provided around the wire 24 in the flow path forming tube 21 and functions as an obstacle to the flow of the gas-containing liquid 3. The obstacle member 25 is fixed to the wire 24 so as to be arranged at the center of the cross section in the width direction of the flow path. The obstacle member 25 of the present embodiment is formed of a metal such as iron, but may be formed of a nonmetal such as plastic.

  In the present embodiment, the shape and arrangement of the obstacle member 25 are set so that the flow of the gas-containing liquid 3 is sufficiently changed by the obstacle member 25. For example, the obstacle member 25 has a shape including a plurality of abdominal portions 25a and a plurality of node portions 25b alternately along the flow path. The obstacle member 25 has a mesh shape in which a plurality of metal wires are combined. Therefore, the gas-containing liquid 3 flows along the outer shape of the obstacle member 25, collides with the obstacle member 25, or passes through the mesh of the obstacle member 25, as indicated by arrows in FIG. , Flowing in the flow path in various ways. An example of the obstacle member 25 is a wire mesh in which each abdomen 25a has 200 to 300 meshes.

  As described above, in the bubble nucleus generation unit 12 of the present embodiment, the gas-containing liquid 3 flows through the flow path-shaped tube 21 having the bellows-structured flow path, and the flow of the gas-containing liquid 3 is the obstacle member 25. Affected by. Therefore, the flow of the gas-containing liquid 3 is affected by the bubble nucleus generating unit 12 at the central part and the peripheral part of the flow path.

  For example, the gas-containing liquid 3 at the center of the flow path flows along the outer shape of the obstacle member 25, collides with the obstacle member 25, or passes through the mesh of the obstacle member 25. Further, as shown by an arrow in FIG. 3, the gas oil-containing liquid 3 at the periphery of the flow path enters the groove of the abdominal part 21 a of the flow path shaped tube 21 or along the groove of the abdominal part 21 a of the flow path shaped tube 21. Or go around in a ring. At this time, since the groove is not spiral but annular, the gas-containing liquid 3 is less likely to flow from the inlet portion 22 to the outlet portion 23, and the flow of the gas-containing liquid 3 can be greatly changed by the groove.

  Therefore, according to this embodiment, the flow of the gas-containing liquid 3 can be changed by the flow path shape tube 21 and the obstacle member 25, thereby generating a large number of bubble nuclei 3 a in the gas-containing liquid 3. Can do. Specifically, according to the present embodiment, the gas-containing liquid 3 is turbulent by causing a vortex in the gas-containing liquid 3 by the flow path shape tube 21 and the obstacle member 25, so that many in the gas-containing liquid 3. Bubble nuclei 3a can be generated. When the gas-containing liquid 3 passes through a normal tube, the gas-containing liquid 3 is generally laminarized. However, according to the bubble nucleus generation unit 12 of the present embodiment, the gas-containing liquid 3 is turbulent. Can do.

  Further, in the present embodiment, the bubble nucleus generation unit 12 can be configured with a simple structure of the flow path shape tube 21 and the obstacle member 25, and the flow path shape tube 21 can be bent. This makes it easy to use the gas-containing liquid generator in various situations, to arrange the gas-containing liquid generator in a narrow space, and to reduce the manufacturing cost and energy consumption of the gas-containing liquid generator. Become.

  This is useful, for example, when the gas-containing liquid generating apparatus is applied not only to the industrial field and general consumer field, but also to the agricultural field and the medical field. The reason is that when applying the gas-containing liquid generator to the agricultural and medical fields, it is necessary to carry the device to various places, to use the device in situations where it is difficult to maintain and secure power, and in some cases the device is disposable. It is because it is required to make it.

  FIG. 4 is a cross-sectional view for explaining dimensions of the bubble nucleus generation unit 12 of the first embodiment.

  Reference symbol A indicates the diameter of the inner peripheral surface of the inlet portion 22. Symbol B indicates the dimension (thickness) of each abdominal portion 21a of the flow path forming tube 21 in the length direction of the flow path. Symbol C indicates the dimension (thickness) of each node 21b of the flow path forming tube 21 in the length direction of the flow path.

  In the present embodiment, the thickness B of each abdomen 21a and the thickness C of each node 21b are set to the same thickness (B = C). Further, as shown in FIG. 4, the diameter A of the inner peripheral surface of the inlet portion 22 is set to be substantially the same as the innermost diameter of each node portion 21b, and is set smaller than the outermost diameter of each abdominal portion 21a. ing. Further, the thicknesses B and C of each abdominal portion 21a and each node portion 21b are set to ¼ of the diameter A of the inner peripheral surface of the inlet portion 22 (B = C = A / 4). In addition, the diameter A of the inner peripheral surface of the inlet portion 22 is, for example, 1 to 2 cm, and the length of the flow path forming tube 21 is, for example, 10 to 20 cm.

  Symbol D indicates the dimension of each abdomen 25a of the obstacle member 25 in the length direction of the flow path. Symbol E indicates the dimension of each abdomen 25a of the obstacle member 25 in the width direction of the flow path. Hereinafter, the dimension D is referred to as the length of each abdomen 25a, and the dimension E is referred to as the diameter of each abdomen 25a.

  In this embodiment, the length D of each abdominal part 25a is set longer than the diameter E of each abdominal part 25a (D> E). Specifically, the length D of each abdomen 25a is set to twice the diameter E of each abdomen 25a (D = 2E). Moreover, the diameter E of each abdominal part 25a is set shorter than the diameter A of the inner peripheral surface of the inlet part 22 (E <A). Specifically, the diameter E of each abdomen 25a is set to 2/3 of the diameter A of the inner peripheral surface of the inlet 22 (E = 2A / 3). Thereby, the obstacle member 25 can be accommodated in the flow path forming tube 21.

  In the present embodiment, the length D of each abdomen 25a of the obstacle member 25 is set longer than the thickness B of each abdomen 21a of the flow path forming tube 21 (D> B). Specifically, the length D of each abdomen 25a of the obstacle member 25 is set to 16/3 of the thickness B of each abdomen 21a of the flow path forming tube 21 (D = 16B / 3).

  The relationship between these dimensions A to E is merely an example, and other relationships may be applied to these dimensions A to E. Further, the number of the abdominal portions 21a and the abdominal portions 25a shown in FIG. 4 is drawn to be smaller than the general number of the abdominal portions 21a and the abdominal portions 25a when the gas-containing liquid generating device is actually manufactured for convenience of drawing. Please keep in mind.

  FIG. 5 is a schematic view for explaining the usage of the bubble nucleus generation unit 12 of the first embodiment.

  FIG. 5A shows one bubble nucleus generation unit 12 having the above-described configuration. The flow path forming tube 21 of the present embodiment is configured to be bendable into various shapes, and can be bent into, for example, a U shape or a spiral shape. FIG. 5A shows the flow path forming tube 21 bent into a U shape.

  FIG. 5B shows two bubble nucleus generation units 12 having the above-described configuration. Each bubble nucleus generation part 12 of this embodiment is comprised so that the male screw groove 22a of the inlet part 22 can be fastened to the nes screw groove 23a of the outlet part 23. FIG. Therefore, the plurality of bubble nucleus generation units 12 can be connected to each other. FIG. 5B shows two bubble nucleation units 12 connected to each other by fastening the male thread groove 22a of one bubble nucleation unit 12 to the nes screw groove 23a of the other bubble nucleation unit 12. ing. According to this embodiment, it is possible to adjust the bubble nucleus generation function of the gas-containing liquid generation apparatus by connecting the plurality of bubble nucleus generation units 12.

  FIG. 6 is an external view for explaining the usage of the bubble nucleus generation unit 12 of the first embodiment.

  6 (a) and 6 (b) show one bubble nucleus generating unit 12 having the above-described configuration. Specifically, the flow path forming tube 21 bent in a spiral shape is moved in two directions. It shows how it was observed. According to the present embodiment, the flow path forming tube 21 is bent into a spiral shape, thereby arranging the flow path forming tube 21 in a narrow space and generating a large number of bubble nuclei 3 a by meandering the gas-containing liquid 3. Is possible. It should be noted that FIGS. 6A and 6B show an example of an inlet portion 22 and an outlet portion 23 of a type different from the above description.

  Hereinafter, various modifications of the present embodiment will be described.

[First Modification]
FIG. 7 is a schematic diagram illustrating a configuration of a gas-containing liquid generation apparatus according to a first modification of the first embodiment.

  FIG. 7 shows the gas-liquid mixing unit 11, the bubble nucleus generating unit 12, the foaming unit 13, and the cleaning tank 14 arranged in order in the circulation channel P. The gas-liquid mixing unit 11 of the present modification is a pump, and generates the gas-containing liquid 3 by mixing the gas 1 and the liquid 2 by, for example, rotation of the impeller or translation of the piston. The gas-containing liquid 3 is supplied to the cleansing tank 14 via the bubble nucleus generation unit 12 and the foaming unit 13. The foaming portion 13 of the present modification is a Venturi tube that generates bubbles 3b by jetting the gas-containing liquid 3.

  The gas-containing liquid 3 stored in the cleansing tank 14 is supplied again to the gas-liquid mixing unit 11 through the circulation channel. According to this modification, the concentration of the bubbles 3b in the gas-containing liquid 3 can be improved by circulation of the gas-containing liquid 3.

[Second Modification]
FIG. 8 is a schematic diagram illustrating a configuration of a gas-containing liquid generation apparatus according to a second modification of the first embodiment.

  The gas-liquid mixing part 11 and the foaming part 13 of this modification are a pump and a venturi tube, as in the first modification. The gas-liquid mixing unit 11 includes a gas inlet 31 for introducing the gas 1, a liquid inlet 32 for introducing the liquid 2, and an outlet 33 for discharging the gas-containing liquid 3 generated from the gas 1 and the liquid 2. And. The foaming unit 13 includes an introduction unit 41 that introduces the gas-containing liquid 3 into the venturi unit 42 from the outside, a venturi unit 42 that functions as a venturi tube that injects the gas-containing liquid 3, and the gas-containing liquid 3 from the venturi unit 42. And a discharge portion 43 for discharging to the outside.

  FIG. 8 shows two bubble nucleus generation devices G1 and G2 as an example of a bubble nucleus generation device configured by connecting a plurality of bubble nucleus generation units 12. The bubble nucleus generator G1 is configured by screwing two bubble nucleus generators 12 in the same manner as in FIG. 5B, and the gas-containing liquid 3 that has passed through the bubble nucleus generator G1 passes through the flow path P1. Is supplied to the foaming section 13. On the other hand, the bubble nucleus generating device G2 is configured by connecting four bubble nucleus generating units 12 via an intermediate flow path, and the gas-containing liquid 3 that has passed through the bubble nucleus generating apparatus G2 passes through the flow path P2. It is supplied to the foaming unit 13. The two bubble nucleation units 12 of the bubble nucleation device G1 form a straight channel, whereas the four bubble nucleation units 12 of the bubble nucleation device G2 have a curved channel. Forming.

  Thus, each bubble nucleus production | generation part 12 is mountable in a gas containing liquid production | generation apparatus in various forms. Note that FIG. 8 shows a gas-containing liquid generating device including two bubble nucleus generating devices G1 and G2 for convenience of drawing, but the gas-containing liquid generating device of the present modification example includes these bubble nucleus generating devices G1. , G2 may be configured to include only one of them.

[Third Modification]
FIG. 9 is a cross-sectional view illustrating a configuration of the bubble nucleus generation unit 12 according to a third modification of the first embodiment.

  The obstacle member 25 of the present modification includes a first abdomen N1 having a large volume and a second abdomen N2 having a small volume as the abdomen 25a. The volume of each first abdomen N1 is an example of the first volume. The volume of each second abdomen N2 is an example of the second volume.

  According to this modification, as the gas-containing liquid 3 travels in the flow path, the volume of each abdomen 25a changes, so that further pressure fluctuations can be applied to the gas-containing liquid 3. Specifically, since the first abdominal part N1 and the second abdominal part N2 are alternately arranged, periodic (wave) pressure fluctuations can be applied to the gas-containing liquid 3. Therefore, according to this modification, it is possible to further improve the concentration of bubble nuclei 3a in the gas-containing liquid 3.

  In this modification, the dimension (length) of each first abdomen N1 in the length direction of the flow path is set longer than the dimension (length) of each second abdomen N2 in the length direction of the flow path. . Furthermore, the dimension (diameter) of each first abdomen N1 in the width direction of the flow path is set longer than the dimension (diameter) of each second abdomen N2 in the width direction of the flow path. As a result, the volume of each first abdomen N1 is set larger than the volume of each second abdomen N2.

  However, in this modification, other dimensional relationships may be adopted, and the volume of each first abdomen N1 may be set larger than the volume of each second abdomen N2. For example, the length of each first abdomen N1 may be set longer than the length of each second abdomen N2, and the diameter of each first abdomen N1 may be set to be the same as the diameter of each second abdomen N2. Conversely, the length of each first abdomen N1 may be set to be the same as the length of each second abdomen N2, and the diameter of each first abdomen N1 may be set longer than the diameter of each second abdomen N2.

[Fourth Modification]
FIG. 10 is a cross-sectional view illustrating a configuration of the bubble nucleus generation unit 12 according to a fourth modification of the first embodiment.

  The bubble nucleus generation part 12 of this modification is provided with the obstacle member 25 containing the abdominal parts M1-M3 from which a volume differs similarly to the 3rd modification. Further, the bubble nucleus generation unit 12 of the present modification includes a plurality of obstacle members M4 to M8 separated from each other as another obstacle member 25. The abdomen M1 to M3 constitute one object, while the obstacle members M4 to M8 are separate objects separated from each other. The obstacle members M4 to M8 have various volumes.

  According to this modification, a large pressure fluctuation can be applied to the gas-containing liquid 3 as in the third modification. Therefore, according to the present modification, it is possible to greatly improve the concentration of the bubble core 3a in the gas-containing liquid 3 as in the third modification.

  In the third and fourth modified examples, the flow of the gas-containing liquid 3 can be complicatedly changed by the obstacle member 25 and the abdomen 25a having various shapes. As a result, a complicated flow such as a river flow can be realized in the flow path forming tube 21, and a complicated turbulent flow can be realized. Therefore, according to these modified examples, the bubble nucleus generation function of the bubble nucleus generation unit 12 can be further enhanced.

  As described above, when the gas-containing liquid 3 flows in the bubble nucleus generation unit 12 of the present embodiment, the flow of the gas-containing liquid 3 is affected by the obstacle member 25 at the center of the flow path, The periphery of the flow path is affected by the bellows structure of the flow path shaped tube 21. Therefore, according to the present embodiment, it becomes possible to generate a large number of bubble nuclei 3a in the gas-containing liquid 3 by the flow path-shaped tube 21 and the obstacle member 25, and thereby the fine bubbles 3b can be highly concentrated. It becomes possible to produce | generate the gas containing liquid 3 to contain.

  Moreover, according to the bubble nucleus production | generation part 12 of this embodiment, even if a high pressure is added to the gas containing liquid 3 and it does not inject the gas containing liquid 3 at high speed, many by the low pressure gas containing liquid 3 by the effect | action of a turbulent flow. Bubble nuclei 3a can be generated. Therefore, according to this embodiment, it becomes possible also from this viewpoint to reduce the manufacturing cost and energy consumption of the gas-containing liquid generating apparatus.

According to the experiment, when the pressure of 0 MPa, 1.5 MPa, and 3 MPa was applied to the gas-containing liquid 3 and the gas-containing liquid 3 was processed by the bubble nucleation unit 12 of FIG. the nanobubbles concentrations respectively became 0.56 × 10 ⁹ cells /Ml,1.05×10 ⁹ amino /Ml,2.41×10 ⁹ cells / ml.

On the other hand, the same experiment was performed by removing the wire 24 and the obstacle member 25 from the bubble nucleus generating unit 12 of FIG. 3 and replacing the flow path forming tube 21 of FIG. In this case, when the gas-containing liquid 3 was treated by applying pressures of 0 MPa, 1.5 MPa, and 3 MPa to the gas-containing liquid 3, the nanobubble concentration of the gas-containing liquid 3 in the cleaning tank 14 was 0.27 × 10. It became a ^nine /ml,0.57×10 ⁹ pieces /ml,1.05×10 ⁹ cells / ml.

  From this result, when using the former bubble nucleus generation part 12 (this embodiment), the nanobubble density | concentration of the gas containing liquid 3 is about twice compared with the case where the latter bubble nucleus generation part 12 is used. It turned out to increase.

(Second Embodiment)
FIG. 11 is a schematic diagram illustrating the configuration of the gas-containing liquid generation apparatus according to the second embodiment.

  In this embodiment, the inlet part 22 of 1st Embodiment is replaced by the gas-liquid mixing part 11 which has the same function as the inlet part 22, and the outlet part 23 of 1st Embodiment is the same as the outlet part 23. The foaming part 13 having the function of As a result, the gas-liquid mixing unit 11, the bubble nucleus generating unit 12, and the foaming unit 13 are integrated.

  The gas-liquid mixing unit 11 includes a gas inlet part 31, a liquid inlet part 32, an outlet part 33, a first fixing part 34, a first baffle plate 35, and a male screw groove 36. The foaming part 13 includes an introduction part 41, a venturi part 42, a discharge part 43, a second fixing part 44, and a second baffle plate 45.

  The gas inlet part 31 introduces the gas 1 into the gas-liquid mixing part 11. The liquid inlet part 32 introduces the liquid 2 into the gas-liquid mixing part 12. The outlet portion 33 has a nozzle shape, and discharges the liquid 2 into the flow path forming tube 21 by ejecting the liquid 2. On the other hand, the gas 1 flows into the flow path forming tube 21 from the outside of the outlet portion 33. As a result, the gas 1 and the liquid 2 are mixed by the momentum of the liquid 2 injection, and the gas-containing liquid 3 is generated near the inlet of the flow path forming tube 21.

  The introduction unit 41 introduces the gas-containing liquid 3 from the bubble nucleus generation unit 12 to the venturi unit 42. The venturi unit 42 functions as a venturi tube that injects the gas-containing liquid 3. The discharge part 43 discharges the gas-containing liquid 3 from the venturi part 42 to the outside. The foaming unit 13 can generate a large number of bubbles 3 b in the gas-containing liquid 3 by injecting the gas-containing liquid 3 by the venturi unit 42.

  The first fixing part 34 is provided in the gas-liquid mixing part 11 and is used to fix one end of the wire 24. The second fixing portion 44 is provided in the foaming portion 13 and is used for fixing the other end of the wire 24. In the present embodiment, the positions of both end portions of the wire 24 are fixed by the first and second fixing portions 34 and 44.

  The first baffle plate 35 is provided in the vicinity of the first fixing unit 44 in the gas-liquid mixing unit 11 and has a function of stirring the liquid 2 in the gas-liquid mixing unit 11. The second baffle plate 45 is provided in the vicinity of the second fixing part 45 in the foaming part 13 and has a function of stirring the gas-containing liquid 3 in the foaming part 13. In the present embodiment, the liquid 2 and the gas-containing liquid 3 are agitated by the first and second baffle plates 35 and 45, whereby pressure fluctuation is applied to the liquid 2 and the gas-containing liquid 3, and Bubble nuclei 3a are likely to be generated.

  In this embodiment, the gas-liquid mixing unit 11 is configured without using a pump. Therefore, the gas-liquid mixing part 11 of this embodiment can function without electric power. Similarly, the bubble nucleus production | generation part 12 and the foaming part 13 of this embodiment are comprised so that it may function without electric power. Therefore, the integrated structure of the gas-liquid mixing part 11, the bubble nucleus generation part 12, and the foaming part 13 shown in FIG. 11 can be used without electric power.

  In the present embodiment, the entire gas-containing liquid generating apparatus may be configured to operate without power, or the gas-containing liquid generating apparatus is configured to use electric power in parts other than the integrated structure described above. May be. In the former case, the gas-containing liquid 3 containing fine bubbles 3b at a high concentration can be generated without electric power. In the latter case, the gas-containing liquid 3 containing fine bubbles 3b at a high concentration can be generated with low power consumption.

  In the first embodiment, when the gas-liquid mixing unit 11 is a pump, the gas 1 can be introduced into the gas-liquid mixing unit 11 by the negative pressure of the pump. On the other hand, in this embodiment, the method of introducing the gas 1 into the gas-liquid mixing unit 11 becomes a problem. For example, the gas 1 may be introduced into the gas-liquid mixing unit 11 of the present embodiment by an aspirating gas suction mechanism.

  As mentioned above, although the example of the specific aspect of this invention was demonstrated by 1st and 2nd embodiment of this invention, this invention is not limited to these embodiment. These embodiments can be implemented with various modifications without departing from the scope of the present invention. The form which added such a change is also contained in the scope of the present invention.

1: gas, 1a: gas molecule, 2: liquid, 2a: liquid molecule,
3: Gas-containing liquid, 3a: bubble nucleus, 3b: bubble,
11: Gas-liquid mixing part, 12: Bubble nucleus generation part, 13: Foaming part, 14: Kiyosei tank,
21: Channel forming tube, 21a: Abdomen, 21b: Node
22: inlet part, 22a: male screw groove, 22b: first fixing part, 22c: first baffle plate,
23: outlet part, 23a: female screw groove, 23b: second fixing part, 23c: second baffle plate,
24: wire, 25: obstacle member, 25a: abdomen, 25b: node
31: Gas inlet part, 32: Liquid inlet part, 33: Outlet part,
34: 1st fixing | fixed part, 35: 1st baffle plate, 36: Male screw groove,
41: introduction part, 42: venturi part, 43: discharge part,
44: 2nd fixing | fixed part, 45: 2nd baffle plate

Claims (16)

A gas-liquid mixing unit that mixes gas and liquid to generate a gas-containing liquid;
A gas-containing liquid processing unit for processing the gas-containing liquid supplied from the gas-liquid mixing unit;
A bubble generating unit that generates bubbles in the gas-containing liquid supplied from the gas-containing liquid processing unit;
The gas-containing liquid processing unit is
Forming a flow path having a flow path alternately including a plurality of abdominal portions having an annular inner peripheral surface and a plurality of nodes having an annular inner peripheral surface, and conveying the gas-containing liquid along the flow path Members,
A linear member provided along the flow path in the flow path forming member;
An obstacle member provided around the linear member in the flow path forming member and functioning as an obstacle to the flow of the gas-containing liquid;
A gas-containing liquid production apparatus comprising:   The gas-containing liquid generating apparatus according to claim 1, wherein the obstacle member includes a plurality of abdomen portions and a plurality of node portions alternately along the flow path.   The gas-containing liquid generating apparatus according to claim 2, wherein a dimension of each abdomen of the obstacle member in the length direction of the flow path is longer than a dimension of each abdomen of the obstacle member in the width direction of the flow path. .   The gas according to claim 2 or 3, wherein a dimension of each abdomen of the obstacle member in the length direction of the flow path is longer than a dimension of each abdomen of the flow path forming member in the length direction of the flow path. Contained liquid generator.   5. The obstacle according to claim 2, wherein the obstacle member includes, as the abdomen, a first abdomen having a first volume and a second abdomen having a second volume smaller than the first volume. The gas-containing liquid production | generation apparatus of description.   6. The gas-containing liquid generation according to claim 5, wherein a dimension of the first abdomen in the length direction or width direction of the flow path is longer than a dimension of the second abdomen in the length direction or width direction of the flow path. apparatus.   The gas-containing liquid generation device according to any one of claims 1 to 6, wherein the gas-containing liquid processing unit includes a plurality of obstacle members separated from each other as the obstacle member.   The gas-containing liquid generating apparatus according to claim 1, wherein the obstacle member has a mesh shape.   The gas-containing liquid generating apparatus according to claim 1, wherein the flow path forming member is configured to be bendable.   The gas-containing liquid generating apparatus according to claim 9, wherein the flow path forming member can be bent into a spiral shape. The gas-containing liquid processing unit is
An inlet for introducing the gas-containing liquid into the flow path forming member;
An outlet for discharging the gas-containing liquid from the flow path forming member,
The inlet portion includes a first fixing portion that fixes one end of the linear member,
The outlet portion includes a second fixing portion that fixes the other end of the linear member.
The gas containing liquid production | generation apparatus of any one of Claim 1 to 10. The inlet portion is provided in the vicinity of the first fixed portion, and includes a first baffle plate for stirring the gas-containing liquid,
The outlet portion is provided in the vicinity of the second fixing portion, and includes a second baffle plate for stirring the gas-containing liquid.
The gas-containing liquid production | generation apparatus of Claim 11. One of the inlet part and the outlet part comprises a male thread groove,
The other of the inlet part and the outlet part includes a female thread groove,
The gas-containing liquid production | generation apparatus of Claim 11 or 12. The gas-liquid mixing unit includes a first fixing unit that fixes one end of the linear member,
The bubble generating unit includes a second fixing unit that fixes the other end of the linear member.
The gas containing liquid production | generation apparatus of any one of Claim 1 to 10. The gas-liquid mixing unit includes a first baffle plate that is provided in the vicinity of the first fixing unit and stirs the gas-containing liquid.
The bubble generating unit is provided in the vicinity of the second fixing unit, and includes a second baffle plate that stirs the gas-containing liquid.
The gas-containing liquid production | generation apparatus of Claim 14. A gas-containing liquid processing mechanism for processing a gas-containing liquid,
Forming a flow path having a flow path alternately including a plurality of abdominal portions having an annular inner peripheral surface and a plurality of nodes having an annular inner peripheral surface, and conveying the gas-containing liquid along the flow path Members,
A linear member provided along the flow path in the flow path forming member;
An obstacle member provided around the linear member in the flow path forming member and functioning as an obstacle to the flow of the gas-containing liquid;
A gas-containing liquid processing mechanism comprising:

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