Gas-containing liquid generator

Abstract

To provide a gas-containing liquid generator which can prepare a gas for gas-containing liquid in a preferred aspect.SOLUTION: A gas-containing liquid generator includes a gas generation part (15, 21) which generates a gas (1) from liquid (2) by electrolysis of the liquid. The gas-containing liquid generator further includes a bubble generation part (11, 12, 13) which mixes the gas and the liquid to generate gas-containing liquid (3) and generates a bubble (3b) in the gas-containing liquid.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a gas-containing liquid generating device, which is applied to, for example, generating microbubble water or nanobubble water. [Background technology]

[0002] Microbubble water containing microbubbles and nanobubble water containing nanobubbles have attracted attention in various technical fields. Although the definitions of microbubbles and nanobubbles are not necessarily clear, microbubbles generally refer to bubbles with a particle size (diameter) of about 1 μm to 100 μm, and nanobubbles generally refer to bubbles with a particle size (diameter) of less than 1 μm (see Patent Document 1). Microbubbles and nanobubbles are also called fine bubbles. Currently, nanobubbles are more commonly called ultrafine bubbles. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-221926 A Summary of the Invention [Problem to be solved by the invention]

[0004] In general, bubbles such as microbubbles and nanobubbles are generated by mixing a gas with a liquid to generate a gas-containing liquid and spraying the gas-containing liquid. Research has revealed that bubbles are generated when bubble nuclei are generated in the gas-containing liquid and then the bubble nuclei combine with each other. A bubble nuclei is an aggregate of gas molecules that have not yet become bubbles but have separated from the liquid molecules and are now aggregated. It has also been found that a large number of fine bubbles such as nanobubbles can be generated from a gas-containing liquid that contains a large number of bubble nuclei.

[0005] When using a gas-containing liquid for various applications, it is desirable that the bubbles are fine, and that the gas-containing liquid contains a high concentration of fine bubbles. This is because fine bubbles last for a long time in the gas-containing liquid. As described above, a gas-containing liquid containing a high concentration of fine bubbles can be generated from a gas-containing liquid containing a high concentration of bubble nuclei. Therefore, it is desired to realize a method capable of generating a gas-containing liquid containing a high concentration of fine bubbles by generating a large number of bubble nuclei in the gas-containing liquid.

[0006] Furthermore, in order to generate a gas-containing liquid, it is necessary to prepare a gas to be mixed with the liquid. In order to suitably generate a gas-containing liquid, it is necessary to prepare such a gas in a suitable manner.

[0007] Therefore, an object of the present invention is to provide a gas-containing liquid generating device that can prepare gas for a gas-containing liquid in a suitable manner. [Means for solving the problem]

[0008] A gas-containing liquid generating device according to one embodiment of the present invention includes a gas generating unit that generates a gas from a liquid by electrolysis of the liquid, and a bubble generating unit that mixes the gas and the liquid to generate a gas-containing liquid and generates bubbles in the gas-containing liquid. Effect of the Invention

[0009] According to the present invention, it is possible to provide a gas-containing liquid generating device capable of preparing gas for a gas-containing liquid in a suitable manner. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing a configuration of a gas-containing liquid generation device of a first embodiment. FIG. [Diagram 2] FIG. 4 is a diagram for explaining a bubble nucleus generation process in the first embodiment. [Diagram 3] 3 is another schematic diagram showing the configuration of the gas-containing liquid generation device of the first embodiment. FIG. [Figure 4]FIG. 2 is a cross-sectional view showing a first configuration example of the electrolysis unit of the first embodiment. [Diagram 5] FIG. 2 is a full view showing a first configuration example of the electrolysis section of the first embodiment. [Figure 6] FIG. 4 is a cross-sectional view showing a second configuration example of the electrolysis unit in the first embodiment. [Figure 7] FIG. 4 is a perspective view showing a second configuration example of the electrolysis unit in the first embodiment. [Figure 8] 1 is a cross-sectional view showing a first configuration example of a gas-containing liquid generation device of a first embodiment. [Figure 9] 4A and 4B are a cross-sectional view and a perspective view showing a second configuration example of the gas-containing liquid generation device of the first embodiment. [Figure 10] FIG. 4 is an outline view showing a third configuration example of the gas-containing liquid generation device of the first embodiment. [Figure 11] 4 is a cross-sectional view showing a fourth configuration example of the gas-containing liquid generation device of the first embodiment. FIG. [Figure 12] FIG. 11 is an outline view showing a fifth configuration example of the gas-containing liquid generation device of the first embodiment. [Figure 13] FIG. 11 is a diagram showing a configuration of a gas-containing liquid generation device according to a second embodiment. [Figure 14] FIG. 11 is an outline view showing the configuration of a gas-containing liquid generation device according to a second embodiment. [Figure 15] FIG. 11 is a cross-sectional view showing the configuration of a gas-containing liquid generation device of a third embodiment. [Figure 16] 13A to 13C are diagrams illustrating an example of the operation of the gas-containing liquid generation device of the third embodiment. [Figure 17] FIG. 13 is a cross-sectional view showing a first configuration example of an electrolysis unit in a fourth embodiment. [Figure 18] FIG. 13 is an exploded cross-sectional view showing a first configuration example of an electrolysis unit of a fourth embodiment. [Figure 19] FIG. 13 is a cross-sectional view showing a second configuration example of the electrolysis unit of the fourth embodiment. [Figure 20] 13A to 13C are external views showing first and second configuration examples of an electrolysis section according to a fourth embodiment. [Figure 21] FIG. 13 is a diagram showing a configuration example of a gas-containing liquid generation device according to a fourth embodiment. [Figure 22] FIG. 13 is a cross-sectional view showing an example of the configuration of a bubble nucleus generating section of a fourth embodiment. [Figure 23] FIG. 13 is a cross-sectional view showing the configuration of an electrolysis unit of a fifth embodiment. [Figure 24] FIG. 13 is a diagram showing a configuration example of a gas-containing liquid generation device according to a fifth embodiment. [Diagram 25] FIG. 13 is a cross-sectional view showing the configuration of a gas-containing liquid generation device according to a sixth embodiment. [Figure 26] FIG. 13 is a cross-sectional view showing the configuration of a gas-containing liquid generation device according to a seventh embodiment. [Figure 27] FIG. 13 is a cross-sectional view showing the configuration of a gas-containing liquid generation device according to an eighth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0012] (First embodiment) FIG. 1 is a schematic diagram showing the configuration of a gas-containing liquid generation device according to the first embodiment.

[0013] The gas-containing liquid generating device of this embodiment includes a gas-liquid mixing section 11, a bubble nucleus generating section 12, a foaming section 13, and a clarification tank 14. The gas-liquid mixing section 11, the bubble nucleus generating section 12, and the foaming section 13 are examples of a bubble generating section. The bubble nucleus generating section 12 is an example of a liquid processing section.

[0014] The gas-liquid mixer 11 mixes the gas 1 and the liquid 2 to generate the gas-containing liquid 3. Examples of the gas 1 include oxygen and hydrogen. Reference symbol 1a represents a gas molecule such as an oxygen molecule or a hydrogen molecule. An example of the liquid 2 is water. Reference symbol 2a represents a liquid molecule such as a water molecule. The gas-liquid mixer 11 can be realized by a mechanism that stirs the gas 1 and the liquid 2 using, for example, a gear, a piston, a diaphragm, a pump, or the like.

[0015] 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 3a in the gas-containing liquid 3. The bubble nuclei 3a are aggregates in which gas molecules 1a separate from liquid molecules 2a. The bubble nucleus generating unit 12 can generate a large number of bubble nuclei 3a in the gas-containing liquid 3, for example, by turbulently flowing the gas-containing liquid 3. The turbulence of the gas-containing liquid 3 can be achieved, for example, by flowing the gas-containing liquid 3 through a flow path having unevenness (e.g., protrusions or bellows) on the inner wall surface or a flow path having a serpentine shape.

[0016] The foaming section 13 processes the gas-containing liquid 3 supplied from the bubble nucleus generating section 12 to generate a large number of bubbles 3b in the gas-containing liquid 3. The bubbles 3b are generated by the bonding of the bubble nuclei 3a with each other. The foaming section 13 can generate a large number of bubbles 3b in the gas-containing liquid 3, for example, by spraying the gas-containing liquid 3. The spraying of the gas-containing liquid 3 can be achieved by, for example, a nozzle, a flow path opening and closing sphere, a Venturi tube, or the like.

[0017] The stabilization tank 14 stores the gas-containing liquid 3 supplied from the foaming unit 13. The gas-containing liquid generating device of the present embodiment can supply the stabilization tank 14 with nanobubble water containing a high concentration of nanobubbles with particle sizes of 50 to 500 nm as the gas-containing liquid 3.

[0018] The gas-liquid mixing section 11, the bubble nucleus generation section 12, the foaming section 13, and the clarification tank 14 may have the configurations described in JP 2015-077566, JP 2016-203109, JP 2017-148775, JP 2017-221926, JP 2017-225959, etc.

[0019] In addition, any two or more of the gas-liquid mixing section 11, the bubble nucleus generating section 12, the foaming section 13, and the clarification tank 14 may be integrated in a manner in which they cannot be distinguished from one another. For example, the bubble nucleus generating section 12 may be integrated with either the gas-liquid mixing section 11 or the foaming section 13.

[0020] In addition, the gas-containing liquid generating apparatus of this embodiment may release the gas-containing liquid 3 containing the bubbles 3b into a liquid outside the gas-containing liquid generating apparatus (e.g., into the water of a river or pond) instead of storing the gas-containing liquid 3 in the clarification tank 14 or after storing the gas-containing liquid 3 in the clarification tank 14.

[0021] FIG. 2 is a diagram for explaining the process of generating the bubble nuclei 3a in the first embodiment.

[0022] FIG. 2( a ) shows how the gas-containing liquid 3 generated by the gas-liquid mixer 11 is treated by the bubble nucleus generator 12 .

[0023] In general, the amount of gas 1 that dissolves in liquid 2 under normal temperature and pressure conditions is limited by the type of gas 1 and liquid 2. In order to dissolve an amount of gas 1 that exceeds this upper limit in liquid 2, it is necessary to mechanically and forcibly dissolve gas 1 in liquid 2 using a pump or the like. The gas-containing liquid 3 obtained in this manner is called a supersaturated gas-containing liquid.

[0024] It has been found that when generating bubble nuclei 3a in the gas-containing liquid 3, a large number of bubble nuclei 3a can be generated by using a supersaturated gas-containing liquid as the gas-containing liquid 3. Therefore, the gas-liquid mixing section 11 of this embodiment generates a supersaturated gas-containing liquid as the gas-containing liquid 3. The supersaturated gas-containing liquid can be generated, for example, by the gas-liquid mixing section 11 having the mechanism exemplified in the description of FIG.

[0025] It has also been found that the bubble nuclei 3a are generated by applying pressure fluctuations or heat fluctuations (temperature fluctuations) to the gas-containing liquid 3. Therefore, the bubble nuclei generating unit 12 of this embodiment generates the bubble nuclei 3a by applying pressure fluctuations to the gas-containing liquid 3. The pressure fluctuations can be applied, for example, by the bubble nuclei generating unit 12 having the flow path exemplified in the description of FIG.

[0026] 2(a) shows how pressure fluctuations and heat fluctuations are applied to the gas-containing liquid 3, which is a supersaturated gas-containing liquid. When pressure fluctuations are applied to the gas-containing liquid 3, high-pressure and low-pressure areas are generated in the gas-containing liquid 3. Furthermore, when heat fluctuations are applied to the gas-containing liquid 3, high-temperature and low-temperature areas are generated in the gas-containing liquid 3.

[0027] In this case, the gas molecules 1a gather in areas of low pressure or high temperature. Figure 2(b) shows how the gas molecules 1a gather in these areas.

[0028] As a result, bubble nuclei 3a, which are aggregates of gas molecules 1a, are generated as shown in Fig. 2(c). A simulation of the generation process of bubble nuclei 3a has revealed that the particle size of bubble nuclei 3a is about 0.5 to 1.0 nm.

[0029] FIG. 3 is another schematic diagram showing the configuration of the gas-containing liquid generation device of the first embodiment.

[0030] The gas-containing liquid generating device of this embodiment includes a gas generating unit 15 in addition to the components shown in Fig. 1. The gas generating unit 15 generates the above-mentioned gas 1 from the above-mentioned liquid 2. The gas-liquid mixing unit 11 mixes the gas 1 with the liquid 2 to generate the above-mentioned gas-containing liquid 3.

[0031] As shown in Fig. 3, the gas generating unit 15 includes an electrolysis unit 21. The electrolysis unit 21 generates a gas 1 by electrolysis of a liquid 2. When the liquid 2 is water, the gas 1 generated by electrolysis of the liquid 2 is oxygen and hydrogen. In this embodiment, the electrolysis unit 21 is disposed in the liquid 2, and generates the gas 1 in the liquid 2. The gas-liquid mixing unit 11 mixes the gas 1 and the liquid 2 to generate a gas-containing liquid 3.

[0032] As described above, the gas-containing liquid generating device of this embodiment generates the gas 1 required for generating the bubbles 3b by electrolysis of the liquid 2. This makes it possible to easily generate the gas 1 from the liquid 2 used for generating the bubbles 3b. For example, when the gas 1 is obtained from an oxygen cylinder or a hydrogen cylinder, a large space is required to place the cylinder. Furthermore, when air is used as the gas 1, a mechanism (e.g., a pump) is required to take in the air into the gas-containing liquid generating device. According to this embodiment, it is possible to prepare the gas 1 without using such a cylinder or pump.

[0033] (1) Configuration example of electrolysis unit 21 Next, a configuration example of the electrolysis section 21 of this embodiment will be described with reference to Figs.

[0034] FIG. 4 is a cross-sectional view showing a first configuration example of the electrolyzing section 21 of the first embodiment.

[0035] The electrolysis unit 21 shown in Fig. 4(a) includes three electrodes 31-33, two insulating O-rings 34, two conductive O-rings 35, and a DC power supply 36. The electrode 32 is an example of one or more first electrodes. The electrodes 31 and 33 are an example of one or more second electrodes. The insulating O-ring 34 is an example of an insulator. The conductive O-ring 35 is an example of a conductor.

[0036] [Electrodes 31~33] The electrodes 31 to 33 have a cylindrical shape. The electrode 31 is disposed inside the cylinder of the electrode 32 and functions as a cathode of electrolysis. The electrode 32 is disposed inside the cylinder of the electrode 33 and surrounds the electrode 31, and functions as an anode of electrolysis. The electrode 33 surrounds the electrode 32 and functions as a cathode of electrolysis. FIG. 4(a) shows a straight line X-X' located on the central axis of the electrodes 31 to 33. In FIG. 4(a), the electrodes 31 to 33 are cylindrical in shape with tapered inner and outer circumferential surfaces. FIG. 4(b) shows a cross section of the electrodes 31 to 33 taken along the straight line Y-Y' shown in FIG. 4(a).

[0037] Moreover, the electrodes 31 to 33 have a mesh structure. In this embodiment, the liquid 2 to be electrolyzed and the gas 1 generated by electrolysis can pass through the mesh of the electrodes 31 to 33. The electrodes 31 to 33 are formed, for example, of a metal mesh having a mesh structure. The material of the metal mesh is, for example, stainless steel.

[0038] [Insulating O-ring 34] The insulating O-ring 34 has a ring shape and is disposed between the electrodes 31 and 32. This electrically insulates the electrodes 31 and 32. Furthermore, by sandwiching the insulating O-ring 34 between the electrodes 31 and 32, the distance between the electrodes 31 and 32 is maintained at a predetermined value.

[0039] [Conductive O-ring 35] The conductive O-ring 35 has a ring-like shape and is disposed between the electrodes 31 and 33. This electrically connects the electrodes 31 and 33. In addition, the conductive O-ring 35 is sandwiched between the electrodes 31 and 33, so that the distance between the electrodes 31 and 33 is maintained at a predetermined value. Furthermore, the insulating O-ring 34 is sandwiched between the electrodes 31 and 32, and the conductive O-ring 35 is sandwiched between the electrodes 31 and 33, so that the distance between the electrodes 32 and 33 is also maintained at a predetermined value.

[0040] [DC power supply 36] The DC power supply 36 includes a positive electrode electrically connected to the electrode 32 and a negative electrode electrically connected to the electrodes 31 and 33. This allows a DC voltage to be generated between the electrode 32, which is an anode, and the electrodes 31 and 33, which are cathodes, and electrolysis can be performed between the anode and the cathode. The value of the DC voltage is, for example, 12 to 48 V. The DC power supply 36 may be installed outside the gas-containing liquid generation device of this embodiment.

[0041] In Fig. 4(a), the positive electrode of the DC power supply 36 is electrically connected to the electrode 32, and the negative electrode of the DC power supply 36 is electrically connected to the electrode 33. As a result, the potential of the positive electrode of the DC power supply 36 is supplied to the electrode 32, and the potential of the negative electrode of the DC power supply 36 is supplied to the electrode 33. Furthermore, in Fig. 4(a), the electrode 31 is electrically connected to the electrode 33 via a conductive O-ring 35. As a result, the potential of the negative electrode of the DC power supply 36 is also supplied to the electrode 31.

[0042] 4(a), the electrodes 31 and 33 may be anodes, and the electrode 32 may be cathodes. In this case, the electrodes 31 and 33 are electrically connected to a positive electrode of a DC power supply 36, and the electrode 32 is electrically connected to a negative electrode of the DC power supply 36.

[0043] Next, continuing to refer to Figs. 4(a) and 4(b), further details of the electrolysis section 21 of this configuration example will be described.

[0044] When electrolysis is performed by electrolysis unit 21, liquid 2 is supplied to electrodes 31-33 so that electrodes 31-33 are immersed in liquid 2. Then, DC power supply 36 applies a DC voltage between electrode 32 and electrodes 31, 33. As a result, electrolysis of liquid 2 occurs in electrolysis unit 21, and gas 1 is generated in liquid 2. When liquid 2 is water, oxygen is generated as gas 1 near the anode, and hydrogen is generated as gas 1 near the cathode.

[0045] According to this configuration example, by making the electrodes 31-33 cylindrical, it is possible, for example, to increase the surface area of ​​the electrodes 31-33 and to facilitate contact between the electrodes 31-33 and the liquid 2. Also, according to this configuration example, by making the electrodes 31-33 have a mesh structure, it is possible, for example, to further facilitate contact between the electrodes 31-33 and the liquid 2, to prevent the liquid 2 and the gas 1 from accumulating near the electrodes 31-33, and to prevent impurities from adhering to the electrodes 31-33. Also, according to this configuration example, by making the electrodes 31-33 have a tapered shape, it is possible, for example, to easily arrange the electrodes 31-33 one on top of the other as shown in FIG. 4(a).

[0046] In this configuration example, the surface area of ​​the outer peripheral surface of the electrode 31 and the surface area of ​​the inner peripheral surface of the electrode 32 are different from each other, so that the concentration of the gas 1 (hydrogen) generated near the outer peripheral surface of the electrode 31 and the concentration of the gas 1 (oxygen) generated near the inner peripheral surface of the electrode 32 are different from each other. Similarly, in this configuration example, the surface area of ​​the outer peripheral surface of the electrode 32 and the surface area of ​​the inner peripheral surface of the electrode 33 are different from each other, so that the concentration of the gas 1 (oxygen) generated near the outer peripheral surface of the electrode 32 and the concentration of the gas 1 (hydrogen) generated near the inner peripheral surface of the electrode 33 are different from each other. In general, it is considered that the concentration of the gas 1 increases as the surface area increases. Therefore, when it is desired to increase the concentration of hydrogen, it is desirable to use the electrode 33 as a cathode and generate hydrogen near the electrode 33. On the other hand, when it is desired to increase the concentration of oxygen, it is desirable to use the electrode 33 as an anode and generate oxygen near the electrode 33.

[0047] In addition, the electrolysis unit 21 of this configuration example may include Na anodes and Nb cathodes (Na and Nb are integers of 1 or more). For example, the electrolysis unit 21 may include N anodes and N+1 cathodes that are alternately stacked (N is an integer of 1 or more). In this case, the electrolysis unit 21 may include one or more insulating O-rings 34 arranged between the anodes and the cathodes, and one or more conductive O-rings 35 arranged between the anodes or between the cathodes. Alternatively, the electrolysis unit 21 may include N+1 anodes and N cathodes that are alternately stacked.

[0048] FIG. 5 is an external view showing a first configuration example of the electrolyzing section 21 of the first embodiment.

[0049] Fig. 5 shows the outer shape of the electrode 31 shown in Fig. 4(a). In Fig. 5, the electrode 31 has a mesh structure as described above. Fig. 5 further shows the diameter A of the outer circumferential surface at one end of the electrode 31 and the diameter B of the outer circumferential surface at the other end of the electrode 31. As described above, the shape of the electrode 31 is cylindrical with tapered inner and outer circumferential surfaces, so that the diameter A is larger than the diameter B (A>B). The same applies to the electrodes 32 and 33.

[0050] FIG. 6 is a cross-sectional view showing a second configuration example of the electrolyzing section 21 of the first embodiment.

[0051] The electrolysis unit 21 shown in Fig. 6(a) includes electrodes 31-33 and a DC power supply 36, similar to the electrolysis unit 21 shown in Fig. 4(a). The electrolysis unit 21 shown in Fig. 6(a) further includes two insulating members 37, 38. The insulating members 37, 38 are examples of insulators.

[0052] The electrodes 31 to 33 in this configuration example also have a cylindrical shape and a mesh structure. In this configuration example, the insulating members 37 and 38 also have a cylindrical shape and a mesh structure. The insulating member 37 is disposed between the electrodes 31 and 32, and electrically insulates the electrodes 31 and 32 from each other. The insulating member 38 is disposed between the electrodes 32 and 33, and electrically insulates the electrodes 32 and 33 from each other. In this configuration example, the liquid 2 to be electrolyzed and the gas 1 generated by electrolysis can pass through the electrodes 31 to 33 and the mesh of the insulating members 37 and 38.

[0053] Fig. 6(a) shows a straight line X-X' located on the central axis of the electrodes 31-33 and the insulating members 37, 38. In Fig. 6(a), the electrodes 31-33 and the insulating members 37, 38 are cylindrical in shape with non-tapered inner and outer circumferential surfaces. Fig. 6(b) shows a cross section of the electrodes 31-33 and the insulating members 37, 38 taken along the straight line Y-Y' shown in Fig. 6(a).

[0054] FIG. 7 is a perspective view showing a second configuration example of the electrolyzing section 21 in the first embodiment.

[0055] Fig. 7 shows the end faces, inner peripheral surfaces, and outer peripheral surfaces of the electrodes 31 to 33 and the insulating members 37 and 38 shown in Fig. 6(a). In Fig. 7, the electrodes 31 to 33 and the insulating members 37 and 38 have a mesh structure as described above.

[0056] According to this configuration example, not only the electrodes 31-33 but also the insulating members 37, 38 are cylindrical, so that the electrolysis unit 21 can be easily assembled, for example, by overlapping the electrodes 31-33 and the insulating members 37, 38 with each other.

[0057] (2) Configuration example of gas-containing liquid generating device Next, a configuration example of the gas-containing liquid generation device of the present embodiment will be described with reference to Figs.

[0058] FIG. 8 is a cross-sectional view showing a first configuration example of the gas-containing liquid generation device of the first embodiment.

[0059] In this configuration example, the gas-liquid mixing section 11 and the gas generating section 15 (electrolysis section 21) of the gas-containing liquid generating device shown in FIG. 3 are provided in a pipe 41. As shown in FIG. 8, the pipe 41 includes a pipe section 41a having an inlet Xa for the liquid 2, a pipe section 41b having an outlet Xb for the gas-containing liquid 3, and a pipe section 41c connected to the pipe sections 41a and 41b. The pipe 41 in this configuration example is a y-shaped pipe including the pipe sections 41a to 41c. The pipe sections 41a, 41b, and 41c are examples of the first, second, and third sections, respectively.

[0060] The pipe section 41a includes a baffle plate 42 provided in the pipe 41. The liquid 2 flowing in from an inlet Xa of the pipe section 41a passes through an opening provided in the baffle plate 42 and reaches the pipe sections 41b and 41c. The baffle plate 42 has a function of agitating the liquid 2.

[0061] 6(a), electrolysis unit 21 of this configuration example includes electrodes 31-33, a DC power source 36 (not shown), and insulating members 37, 38. Electrolysis unit 21 of this configuration example further includes an electrode holder 39 that holds the electrodes 31-33 and the insulating members 37, 38.

[0062] The piping section 41c has an opening Xc for inserting the electrolysis section 21 into the piping 41. In FIG. 8, the electrodes 31-33 and the insulating members 37, 38 are inserted into the piping section 41c from the opening Xc, and the electrode holder 39 is attached to the opening Xc. In this configuration example, the electrolysis section 21 can be removed from the piping section 41c by pulling the electrode holder 39 out of the opening Xc. The outer peripheral surface of the electrode holder 39 and the inner peripheral surface of the piping section 41c may have a thread groove for attaching the electrode holder 39 to the piping section 41c. The angle between the piping section 41a and the piping section 41c is, for example, 35°.

[0063] The electrolysis section 21 electrolyzes the liquid 2 that has reached the vicinity of the electrodes 31 to 33 from the inlet Xa of the piping section 41a. As a result, the gas 1 is produced in the liquid 2 near the electrodes 31 to 33. The gas 1 and the liquid 2 flow into the piping section 41b.

[0064] The piping portion 41b includes a gas-liquid mixer 11 provided in the piping 41. The gas-liquid mixer 11 mixes the gas 1 and the liquid 2 supplied from the piping portions 41a and 41c to generate a gas-containing liquid 3. The gas-containing liquid 3 is discharged from the outlet Xb of the piping portion 41b. The gas-liquid mixer 11 of this configuration example mixes the gas 1 and the liquid 2 by passing the gas 1 and the liquid 2 through a narrow flow path having an uneven surface. The gas-liquid mixer 11 of this configuration example does not mix the liquid 2 with the gas 1 outside the liquid 2, but mixes the liquid 2 with the gas 1 in the liquid 2, so that it is configured to mix the gas 1 and the liquid 2 with a relatively simple configuration. In this configuration example, the baffle plate 42 can also be considered to be a part of the gas-liquid mixer 11.

[0065] According to this configuration example, by arranging the electrodes 31-33 of the electrolysis unit 21 inside the pipe 41, it is possible to realize, for example, a compact-sized electrolysis unit 21 or an electrolysis unit 21 that is detachable from the pipe 41. In order to prevent the electrodes 31-33 from dissolving due to electrolysis, it is desirable to form the electrodes 31-33 from, for example, stainless steel.

[0066] FIG. 9 is a cross-sectional view and a perspective view showing a second configuration example of the gas-containing liquid generation device of the first embodiment.

[0067] In this configuration example, the gas-liquid mixing section 11, the foaming section 13, and the gas generating section 15 (electrolysis section 21) of the gas-containing liquid generating device shown in Fig. 1 and Fig. 3 are provided in a water faucet 51 as shown in Fig. 9(a). The faucet 51 in this configuration example includes a main body 51a, a spout 51b, a handle 51c, a spindle 51d, and a pipe 51e. Fig. 9(a) generally shows a cross section of the faucet 51, but in part shows the outline of the faucet 51 rather than its cross section.

[0068] The main body 51a has an inlet Ya for the liquid 2. In this configuration example, the liquid 2 is tap water supplied from a water pipe. The main body 51a includes a fluid sensor 52 attached to the outer surface of the main body 51a and a propeller 53 arranged inside the main body 51a. When the fluid sensor 52 detects the flow of the liquid 2 inside the main body 51a, it turns on the electrolysis unit 21. The propeller 53 has a function of stirring the liquid 2 flowing inside the main body 51a. The liquid 2 flowing in from the inlet Ya of the main body 51a passes near the propeller 53 and reaches the gas-liquid mixing unit 11 and the foaming unit 13 provided inside the main body 51a.

[0069] The spout 51b is connected to the main body 51a and has an outlet Yb for the gas-containing liquid 3. In this configuration example, the gas-containing liquid 3 containing the gas bubbles 3b flows into the spout 51b from the foaming section 13. The gas bubbles 3b in this configuration example contain oxygen and hydrogen generated by electrolysis of tap water. The faucet 51 in this configuration example can discharge tap water containing the gas bubbles 3b as the gas-containing liquid 3 from the outlet Yb of the spout 51b.

[0070] The handle 51c is attached to the main body 51a. When the handle 51c is twisted to one side, the liquid 2 flows in the main body 51a, and tap water is discharged from the outlet Yb. In this case, the fluid sensor 52 senses the flow of the liquid 2 in the main body 51a and turns on the electrolysis unit 21. This causes electrolysis of the liquid 2, and the gas 1 is generated in the liquid 2. As a result, the tap water discharged from the outlet Yb becomes the gas-containing liquid 3 containing the gas bubbles 3b. After that, when the handle 51c is twisted to the other side, the flow of the liquid 2 in the main body 51a stops, and the discharge of the tap water from the outlet Yb stops. In this case, the fluid sensor 52 senses that the flow of the liquid 2 in the main body 51a has stopped, and turns off the electrolysis unit 21. This stops the electrolysis of the liquid 2.

[0071] The spindle 51d is housed in the main body 51a and is attached to the handle 51c. When the handle 51c is twisted in one direction, a gap opens between the opening in the main body 51a and the tip of the spindle 51d. As a result, the liquid 2 flows in the main body 51a, and tap water is discharged from the outlet Yb. When the handle 51c is then twisted in the other direction, the gap closes between the opening in the main body 51a and the tip of the spindle 51d. As a result, the flow of the liquid 2 in the main body 51a stops, and the discharge of tap water from the outlet Yb stops.

[0072] In this configuration example, the gas-liquid mixing section 11 is formed upstream of the opening in the main body 51a, and the foaming section 13 is formed downstream of the opening in the main body 51a. At a point near this opening, the flow path in the main body 51a is narrowed due to the influence of the spindle 51d, etc., and the liquid 2 is likely to collide with the surfaces of the main body 51a and the spindle 51d. The gas-liquid mixing section 11 of this configuration example mixes the gas 1 and the liquid 2 by passing the gas 1 and the liquid 2 through this point. The gas-liquid mixing section 11 of this configuration example does not mix the liquid 2 with the gas 1 outside the liquid 2, but mixes the liquid 2 with the gas 1 in the liquid 2, so that it is configured to mix the gas 1 and the liquid 2 with a relatively simple configuration. In this configuration example, the propeller 53 can also be considered to be a part of the gas-liquid mixing section 11. In addition, the foaming section 13 of this configuration example generates bubbles 3b in the gas-containing liquid 3 by spraying the gas-containing liquid 3 from the gap of the opening.

[0073] The pipe 51e is connected to the main body 51a downstream of the propeller 53 and upstream of the spindle 51d. The pipe 51e has an opening Yc for inserting the electrolysis unit 21 into the faucet 51. The electrolysis unit 21 of this configuration example includes an electrode 31, a DC power supply 36, and an electrode holder 39, similar to the electrolysis unit 21 shown in FIG. 8. In this configuration example, the electrode 31 is used as a cathode for electrolysis, and the pipe 51e itself is used as an anode for electrolysis. In FIG. 9(a), the positive electrode of the DC power supply 36 is electrically connected to the pipe 51e, and the negative electrode of the DC power supply 36 is electrically connected to the electrode 31.

[0074] Fig. 9(b) is a perspective view showing the structure of the electrolysis unit 21 shown in Fig. 9(a). The electrode holder 39 of this configuration example has a set screw 39a and a thread groove 39b for attaching the electrode holder 39 to the opening Yc. In Fig. 9(a), the electrode 31 is inserted into the pipe 51e from the opening Yc, and the electrode holder 39 is attached to the opening Yc. In this configuration example, the electrolysis unit 21 can be removed from the pipe 51e by pulling the electrode holder 39 out of the opening Yc.

[0075] The electrolysis unit 21 of this configuration example electrolyzes the liquid 2 that has reached the vicinity of the electrode 31 from the inlet Ya of the main body 51a. As a result, the gas 1 is generated in the liquid 2 near the electrode 31 and near the pipe 51e. The gas 1 and the liquid 2 are supplied to the vicinity of the tip of the spindle 51d.

[0076] According to this configuration example, by arranging the electrodes 31 of the electrolyzer 21 inside the faucet 51, it is possible to realize, for example, a compact-sized electrolyzer 21 or an electrolyzer 21 that is detachable from the faucet 51. According to this configuration example, it is possible to convert tap water discharged from the faucet 51 into microbubble water or nanobubble water.

[0077] FIG. 10 is an outline view showing a third configuration example of the gas-containing liquid generation device of the first embodiment.

[0078] Fig. 10 shows mostly the outer shape of the faucet 51 of this configuration example, but in some parts shows a cross section of the faucet 51 rather than the outer shape. The faucet 51 of this configuration example has a structure similar to that of the faucet 51 of the second configuration example (Fig. 9). However, the fluid sensor 52 of this configuration example is attached to the inlet Ya of the main body 51a on the upstream side of the main body 51a, rather than to the outer surface of the main body 51a. Furthermore, the pipe 51e of this configuration example is connected obliquely to the main body 51a, similar to the relationship between the pipe portion 41a and the pipe portion 41c shown in Fig. 8.

[0079] According to this configuration example, the gas-containing liquid generating device provided on the faucet 51 can provide the same effects as those of the second configuration example.

[0080] FIG. 11 is a cross-sectional view showing a fourth configuration example of the gas-containing liquid generation device of the first embodiment.

[0081] 11 generally shows a cross section of the faucet 51 etc. of this configuration example, but in some parts shows the outer shape rather than the cross section of the faucet 51 etc. The faucet 51 of this configuration example has a structure similar to the faucet 51 of the second configuration example (FIG. 9). However, the gas-liquid mixer 11 and the gas generator 15 (electrolyzer 21) of this configuration example are not provided in the faucet 51, but in the piping 41 arranged upstream of the faucet 51.

[0082] The pipe 41 of this configuration example includes pipe sections 41a to 41c, similar to the pipe 41 of the first configuration example (FIG. 8). The inlet Xa of the pipe section 41a is connected to a water pipe Pa in which a fluid sensor 52 is provided. The outlet Xb of the pipe section 41b is connected to a water pipe Pb connected to the inlet Ya of the faucet 51. In FIG. 11, the electrode 31 is inserted into the pipe section 41c from the opening Xc, and the electrode holder 39 is attached to the opening Xc. The electrolysis section 21 of this configuration example includes the electrode 31, the DC power supply 36, and the electrode holder 39, similar to the electrolysis section 21 of the second configuration example (FIG. 9), and the electrode 31 is used as a cathode for electrolysis, and the pipe section 41c itself is used as an anode for electrolysis. In FIG. 11, the positive electrode of the DC power supply 36 is electrically connected to the pipe section 41c, and the negative electrode of the DC power supply 36 is electrically connected to the electrode 31.

[0083] The pipe 41 of this configuration example discharges the gas-containing liquid 3 discharged from the gas-liquid mixing section 11 from the outlet Xb of the pipe portion 41b. The faucet 51 of this configuration example generates bubbles 3b in the gas-containing liquid 3 supplied from the pipe 41 by the foaming section 13. As a result, the gas-containing liquid 3 containing the bubbles 3b is released from the outlet Yb of the faucet 51.

[0084] According to this configuration example, the gas-containing liquid generating device provided on the pipe 41 and the faucet 51 can provide the same effects as those of the first to third configuration examples.

[0085] FIG. 12 is an outline view showing a fifth configuration example of the gas-containing liquid generation device of the first embodiment.

[0086] Fig. 12(a) generally shows the outer shape of the faucet 51 of this configuration example, but partially shows a cross section of the faucet 51 rather than the outer shape. The faucet 51 of this configuration example has a similar structure to the faucet 51 of the third configuration example (Fig. 10). However, the faucet 51 of this configuration example has an outlet Yb in the main body 51a rather than in the spout 51b. Furthermore, the main body 51a of this configuration example includes the regions Ra to Rc.

[0087] The region Ra has an inlet Ya and is connected to a pipe 51e. FIG. 12(b) shows an electrode 31 to be inserted into the pipe 51e and an electrode holder 39 for holding the electrode 31. The electrolysis section 21 of this configuration example has a structure similar to that of the electrolysis section 21 of the third configuration example (FIG. 10). However, the electrode 31 of this configuration example is formed by drilling a number of holes in a flat plate and rolling the flat plate into a cylindrical shape. The region Ra further includes a gas-liquid mixing section 11. The gas-liquid mixing section 11 in the region Ra has a structure similar to that of the gas-liquid mixing section 11 of the first configuration example (FIG. 8), for example.

[0088] The region Rb is disposed downstream of the region Ra and includes a bubble nucleus generating section 12. The bubble nucleus generating section 12 in the region Rb is formed by a flow path having unevenness on the inner wall surface. The bubble nucleus generating section 12 turbulently generates bubble nuclei 3a in the gas-containing liquid 3 by turbulently flowing the gas-containing liquid 3 supplied from the gas-liquid mixing section 11.

[0089] Region Rc is disposed downstream of region Rb and includes a handle 51c and a spindle 51d (not shown). Thus, region Rc includes a foaming section 13 formed by the spindle 51d. The foaming section 13 generates bubbles 3b in the gas-containing liquid 3 supplied from the bubble nucleation section 12.

[0090] According to this configuration example, the gas-containing liquid generating device provided on the faucet 51 can provide the same effects as those of the first to fourth configuration examples.

[0091] As described above, the gas-containing liquid generating device of the present embodiment generates the gas 1 from the liquid 2 by electrolysis, and generates the gas-containing liquid 3 containing the bubbles 3b using the gas 1 and the liquid 2. Therefore, according to the present embodiment, the gas 1 for generating the bubbles 3b can be prepared in a suitable manner, for example, by easily preparing the gas 1. Furthermore, according to the present embodiment, by forming the electrode 31 and other electrodes into a cylindrical or mesh structure, it is possible to perform electrolysis suitable for generating the gas-containing liquid 3 and the bubbles 3b, as described above.

[0092] Second embodiment FIG. 13 is a diagram showing the configuration of a gas-containing liquid generation device according to the second embodiment.

[0093] The gas-containing liquid generating device of this embodiment is provided in a diving device 61 configured to be used underwater. To facilitate understanding of the explanation of the diving device 61, the right half of Fig. 13 shows a cross section of the diving device 61, and the left half of Fig. 13 shows the outer shape of the diving device 61. The diving device 61 may include all of the gas-liquid mixing section 11, the bubble nucleus generating section 12, the foaming section 13, and the gas generating section 15 (electrolysis section 21) shown in Figs. 1 and 3, or may include only some of these.

[0094] The diving device 61 includes a housing 62, an upper filter 63, a lower filter 64, an electromagnetic wave generator 65, a pump 66, and an ultrasonic generator 67. The housing 62 includes an upper end portion 62a, a cylindrical portion 62b, a cylindrical portion 62c, and a lower end portion 62d. Fig. 13 shows the diving device 61 installed in water such as a river or a pond.

[0095] The housing 62 has a structure in which an upper end 62a, a cylindrical portion 62b, a cylindrical portion 62c, and a lower end 62d are arranged in order from top to bottom. The upper end 62a has an inlet for taking in the liquid 2 to be supplied to the electrolysis section 21. The lower end 62d has an outlet for discharging the gas-containing liquid 3 that has passed through the foaming section 13. In Fig. 13, the housing 62 stands upright on the bottom of a river or a pond. The housing 62 is made of, for example, polyvinyl chloride.

[0096] The upper filter 63 and the lower filter 64 are arranged in order within the upper end portion 62a. The liquid 2 taken into the upper end portion 62a passes through the upper filter 63 and the lower filter 64 in order. This removes impurities such as sand grains from the liquid 2. In this embodiment, the upper filter 63 has coarse meshes, and the lower filter 64 has fine meshes. The upper filter 63 or the lower filter 64 may have a function of removing a predetermined substance (e.g., ammonia or nitrite) from the liquid 2.

[0097] The electromagnetic wave generator 65 is disposed below the upper filter 63 and the lower filter 64 within the upper end portion 62a, and generates electromagnetic waves to be irradiated to the liquid 2. The electromagnetic waves generated from the electromagnetic wave generator 65 are irradiated to the liquid 2 that has passed through the upper filter 63 and the lower filter 64. This makes it possible to change the properties of the liquid 2 by the electromagnetic waves.

[0098] The pump 66 is disposed inside the cylindrical portion 62c. In this embodiment, the liquid 2 is taken in from the inlet by the action of the pump 66. The pump 66 may further function as the gas-liquid mixer 11.

[0099] The electrolysis unit 21 includes one or more electrodes arranged in the tubular portion 62c. The one or more electrodes include the electrode 31, as shown in FIG. 13. The electrode 31 is arranged so as to surround the pump 66. The electrode 31 in this embodiment functions as a cathode of electrolysis in the diving device 61. On the other hand, the anode of electrolysis in the diving device 61 may be an electrode other than the electrode 31, or may be a part of the tubular portion 62c. The diving device 61 further includes a DC power source 36 (not shown) for electrolysis. Electrolysis of the liquid 2 flowing in from the upper end portion 62a and the tubular portion 62b occurs near the electrode 31, and the gas 1 is generated in the liquid 2. The gas 1 and the liquid 2 are mixed, for example, by the gas-liquid mixing unit 11 to become the gas-containing liquid 3.

[0100] The ultrasonic generator 67 is disposed in the lower end 62d and generates ultrasonic waves to be irradiated to the gas-containing liquid 3. The ultrasonic waves generated by the ultrasonic generator 67 are irradiated to the gas-containing liquid 3 discharged from the tube portion 62c. This makes it possible to change the properties of the gas-containing liquid 3 by the ultrasonic waves. For example, when the excess gas 1 accumulated in the lower end 62d is irradiated with ultrasonic waves, it is possible to promote dissolution of the excess gas 1 into the gas-containing liquid 3. Furthermore, the action of the ultrasonic waves promotes separation of the gas 1 and the liquid 2, so that a large number of bubble nuclei 3a can be generated. In this way, the ultrasonic generator 67 can function as the gas-liquid mixing section 11 and the bubble nuclei generating section 12.

[0101] The foaming section 13 is provided in the lower end 62d near the outlet of the gas-containing liquid 3. The foaming section 13 of this embodiment sprays the gas-containing liquid 3 to generate bubbles 3b in the gas-containing liquid 3. The diving device 61 may generate the bubbles 3b by the foaming section 13 when discharging the gas-containing liquid 3 from the outlet, or may discharge the gas-containing liquid 3 from the outlet after generating the bubbles 3b by the foaming section 13.

[0102] FIG. 14 is an outline view showing the configuration of a gas-containing liquid generation device according to the second embodiment.

[0103] Fig. 14 shows the upper end 62a, the tube portion 62b, the tube portion 62c, and the lower end 62d of the housing 62 shown in Fig. 13. The housing 62 may be configured so that the distance between the upper end 62a and the lower end 62d can be changed. For example, the tube portion 62b and the tube portion 62c may slide relative to each other to change the distance between the upper end 62a and the lower end 62d. Also, the distance between the upper end 62a and the lower end 62d may be changed by replacing the tube portion 62b or the tube portion 62c with another tube portion 62b or the tube portion 62c.

[0104] According to this embodiment, it is possible to supply microbubble water or nanobubble water to a river or a pond. This makes it possible to improve the water quality of the river or pond, for example. For example, the submersible device 61 may be installed in a fish farming pond to improve the fish growth environment with the microbubble water or nanobubble water. The submersible device 61 may be used in a liquid 2 other than the water of a river or a pond.

[0105] Third embodiment FIG. 15 is a cross-sectional view showing the configuration of a gas-containing liquid generation device of the third embodiment.

[0106] The gas-containing liquid generating device of this embodiment is provided in a diving device 71 configured to be used underwater. The diving device 71 may include all of the gas-liquid mixing section 11, the bubble nucleus generating section 12, the foaming section 13, and the gas generating section 15 (electrolysis section 21) shown in Figs. 1 and 3, as in the above-mentioned diving device 61, or may include only some of them.

[0107] The submersible device 71 includes a casing 72, a filter 73, a guest gas introduction section 74, an electric motor 75, an impeller 76, and an insulating member 77. Fig. 15 shows the submersible device 71 used in water such as a river or a pond.

[0108] The casing 72 has a cylindrical shape extending horizontally, and has an inner peripheral surface with a bellows structure. The casing 72 has an inlet at one end for taking in the liquid 2 to be supplied to the electrolysis section 21, and an outlet at the other end for discharging the gas-containing liquid 3 that has passed through the foaming section 13. The bellows structure of the casing 72 has the effect of generating bubble nuclei 3a in the gas-containing liquid 3, and therefore acts as the bubble nucleus generating section 12. The casing 72 is formed of, for example, stainless steel.

[0109] The filter 73 is disposed near the inlet of the casing 72. The liquid 2 taken in from the inlet passes through the filter 73. This removes impurities such as sand grains from the liquid 2. The filter 73 is formed of, for example, felt.

[0110] The guest gas introduction part 74 is provided to take in a guest gas into the casing 72. The guest gas may be used as the gas 1 for generating the gas-containing liquid 3, or may not be used as the gas 1 for generating the gas-containing liquid 3.

[0111] The electric motor 75 is used to drive the impeller 76. The impeller 76 rotates in the liquid 2 by being driven by the electric motor 75. The impeller 76 has a function of mixing the gas 1 and the liquid 2 to generate the gas-containing liquid 3, and therefore acts as a gas-liquid mixer 11.

[0112] The insulating member 77 is disposed so as to surround the electric motor 75. The insulating member 77 is made of, for example, Teflon.

[0113] The electrolysis unit 21 includes one or more electrodes arranged in the casing 72. The one or more electrodes include the electrode 31, as shown in FIG. 15. The electrode 31 is arranged so as to surround the insulating member 77. The electrode 31 in this embodiment functions as a cathode of electrolysis in the diving device 71. On the other hand, the anode of electrolysis in the diving device 71 may be an electrode other than the electrode 31, or may be a part of the casing 72. The diving device 71 further includes a DC power source 36 (not shown) for electrolysis. Electrolysis of the liquid 2 flowing in from the inlet of the casing 72 occurs near the electrode 31, and the gas 1 is generated in the liquid 2. The gas 1 and the liquid 2 are mixed by the action of the impeller 76, for example, to become the gas-containing liquid 3. The electrode 31 in this embodiment is formed of, for example, stainless steel.

[0114] The foaming section 13 is provided near the outlet of the casing 72. The foaming section 13 of this embodiment is a Venturi tube. The foaming section 13 of this embodiment generates bubbles 3b in the gas-containing liquid 3 by injecting the gas-containing liquid 3. The diving device 71 may generate the bubbles 3b by the foaming section 13 when discharging the gas-containing liquid 3 from the outlet, or may discharge the gas-containing liquid 3 from the outlet after generating the bubbles 3b by the foaming section 13.

[0115] FIG. 16 is a diagram showing an operation example of the gas-containing liquid generation device of the third embodiment.

[0116] 16 shows the above-mentioned diving device 71 being used in a water tank. The diving device 71 may have a function of moving underwater. In this case, the diving device 71 may be equipped with a light for illuminating the water when moving underwater.

[0117] According to this embodiment, it is possible to supply microbubble water or nanobubble water to a river or a pond, as in the second embodiment. Note that the diving apparatus 71 may be used in a liquid 2 other than the water of a river or a pond.

[0118] (Fourth embodiment) FIG. 17 is a cross-sectional view showing a first configuration example of the electrolyzing section 21 of the fourth embodiment.

[0119] Electrolysis unit 21 of this configuration example includes electrodes 31, 32, 33, a DC power supply 36, and insulating members 37 and 38, similar to electrolysis unit 21 shown in Fig. 6. However, electrodes 31-33 and insulating members 37, 38 of this configuration example have shapes different from those of electrodes 31-33 and insulating members 37, 38 shown in Fig. 6. Hereinafter, electrolysis unit 21 of this configuration example will be described in detail.

[0120] In this configuration example, electrodes 31 to 33 have a bowl-like shape. Electrode 31 is disposed inside the bowl of electrode 32 and functions as a cathode for electrolysis. Electrode 32 is disposed inside the bowl of electrode 33 and outside the bowl of electrode 31 and functions as an anode for electrolysis. Electrode 33 is disposed outside the bowl of electrode 32 and functions as a cathode for electrolysis. Electrodes 31 to 33 in this configuration example also have a mesh structure.

[0121] The insulating member 37 is disposed between the electrodes 31 and 32, and electrically insulates the electrodes 31 and 32. The insulating member 38 is disposed between the electrodes 32 and 33, and electrically insulates the electrodes 32 and 33. The insulating members 37 and 38 in this configuration example also have a mesh structure.

[0122] The electrolysis section 21 of this configuration example has an opening 21a penetrating the electrodes 31-33 and the insulating members 37, 38. Specifically, the electrodes 31-33 have openings 31a-33a, respectively, and the insulating members 37, 38 have openings 37a, 38a, respectively. The openings 31a-33a are provided in the bottom of the bowl of the electrodes 31-33, respectively. On the other hand, the openings 37a, 38a are provided so that the entire bottom and part of the side of the bowl of the insulating members 37, 38 are eliminated, respectively. As a result, the shape of the insulating members 37, 38 cannot be said to be bowl-shaped.

[0123] The DC power supply 36 includes a positive electrode electrically connected to the electrode 32, and a negative electrode electrically connected to the electrodes 31 and 33. The details of the DC power supply 36 in this configuration example are similar to those of the DC power supply 36 shown in FIG.

[0124] FIG. 18 is an exploded cross-sectional view showing a first configuration example of the electrolyzing section 21 of the fourth embodiment.

[0125] Fig. 18 shows an exploded state of the electrodes 31-33 and the insulating members 37, 38 shown in Fig. 17. Fig. 18 further shows the positions of the openings 31a-33a of the electrodes 31-33 and the positions of the openings 37a, 38a of the insulating members 37, 38 by dashed lines.

[0126] FIG. 19 is a cross-sectional view showing a second configuration example of the electrolyzing section 21 of the fourth embodiment.

[0127] Like the electrolysis unit 21 of the first configuration example, the electrolysis unit 21 of this configuration example includes an electrode 31, an electrode 32, an electrode 33, a DC power supply 36, and an insulating member 37 and an insulating member 38. However, the electrolysis unit 21 of this configuration example does not have an opening 21a. Therefore, in this configuration example, not only the electrodes 31 to 33 but also the insulating members 37 and 38 have a bowl shape.

[0128] FIG. 20 is an outline view showing a first and a second configuration example of the electrolyzing section 21 of the fourth embodiment.

[0129] Fig. 20(a) is a perspective view showing the outer shape of electrode 31 of the first configuration example. In Fig. 20(a), electrode 31 has a mesh structure and has openings 31a. In the first configuration example, electrodes 32 and 33 also have the same outer shape.

[0130] Fig. 20(b) is a perspective view showing the outer shape of electrode 31 in the second configuration example. In Fig. 20(b), electrode 31 has a mesh structure but does not have openings 31a. In the second configuration example, electrodes 32 and 33 also have the same outer shape.

[0131] As described above, the electrodes 31-33 of this embodiment have a bowl-shaped shape, as in the first or second configuration example. According to this embodiment, by making the electrodes 31-33 bowl-shaped, it is possible to obtain the same effect as when the electrodes 31-33 are cylindrical. For example, it is possible to increase the surface area of ​​the electrodes 31-33 and to facilitate contact between the electrodes 31-33 and the liquid 2. Furthermore, according to this embodiment, by making the electrodes 31-33 bowl-shaped, it is possible to collect the gas 1 near the bowl parts of the electrodes 31-33. Furthermore, the shape of the electrodes 31-33 of this embodiment is suitable for use in combination with the ultrasonic generator 81 described later.

[0132] FIG. 21 is a diagram showing a configuration example of a gas-containing liquid generation device according to the fourth embodiment.

[0133] The gas-containing liquid generation device of this configuration example includes an electrolysis unit 21, an ultrasonic generator 81, and a housing 82. The electrolysis unit 21 of this configuration example includes electrodes 31 to 33 having openings 31a to 33a, similar to the electrolysis unit 21 shown in FIG.

[0134] The housing 82 holds the electrodes 31 to 33. The housing 82 further holds an ultrasonic generator 81 disposed below the openings 31a to 33a. Thus, the ultrasonic generator 81 can generate ultrasonic waves that reach the openings 31a to 33a.

[0135] When electrolysis is performed by electrolysis unit 21 of this configuration example, liquid 2 is supplied to electrodes 31-33 so that electrodes 31-33, ultrasonic generator 81, and housing 82 are immersed in liquid 2. Then, DC power supply 36 applies a DC voltage between electrode 32 and electrodes 31 and 33. As a result, electrolysis of liquid 2 occurs in the vicinity of electrodes 31-33, and gas 1 is generated in liquid 2. When liquid 2 is water, oxygen is generated as gas 1 near the anode, and hydrogen is generated as gas 1 near the cathode.

[0136] The ultrasonic waves generated by the ultrasonic generator 81 can promote the generation of the gas 1 and the mixing of the gas 1 and the liquid 2. For example, the ultrasonic waves can break the hydrogen bonds between the water molecules (liquid molecules 2a in FIG. 1) in the liquid 2. This promotes the generation of the gas 1. The ultrasonic waves can also promote the dissolution of the gas 1 into the liquid 2 and the dissolution of the excess gas 1 into the gas-containing liquid 3. This promotes the mixing of the gas 1 and the liquid 2. The ultrasonic generator 81 can exert the same effect as the ultrasonic generator 67 (FIG. 13) described above.

[0137] When the electrodes 31-33 have a bowl-shaped configuration, ultrasonic generator 81 is disposed below the bowls of electrodes 31-33, so that ultrasonic waves can be easily applied to gas 1 generated from electrodes 31-33. When electrodes 31-33 have openings 31a-33a, gas 1 and liquid 2 can easily move near electrodes 31-33 by passing through openings 31a-33c. However, electrolysis unit 21 of this configuration example may include electrodes 31-33 that do not have openings 31a-33a, similar to electrolysis unit 21 shown in FIG. 19.

[0138] Moreover, the gas-containing liquid generation device of this configuration example may be used in a river or a pond, similar to the diving apparatus 61 of the second embodiment and the diving apparatus 71 of the third embodiment.

[0139] FIG. 22 is a cross-sectional view showing an example of the configuration of the bubble nucleus generating unit 12 of the fourth embodiment.

[0140] Fig. 22 shows an example in which the electrolysis section 21 (electrodes 31-33) of Fig. 17 or 19 is provided in a bubble nucleus generation section 12. The bubble nucleus generation section 12 of this configuration example includes an inlet forming member 83, an outlet forming member 84, a flat plate 85, bellows members 86-88, and a spiral member 89.

[0141] The inlet forming member 83 forms an inlet for introducing the liquid 2 into the bubble nucleus generating section 12. The outlet forming member 84 forms an outlet for discharging the gas-containing liquid 3 from the bubble nucleus generating section 12. The electrolysis section 21 is disposed near the inlet, and generates the gas 1 in the liquid 2 near the inlet. As a result, the gas-containing liquid 3 is generated near the inlet.

[0142] The flat plate 85 and the bellows members 86-88 form a flow path for flowing the gas-containing liquid 3 in a serpentine manner from the inlet to the outlet. The flat plate 85 has a roughly disk-like shape. Each of the bellows members 86-88 has a roughly cylindrical shape and has inner and outer circumferential surfaces with a bellows structure.

[0143] The gas-containing liquid 3 flowing in from the inlet flows between the inlet forming member 83 and the flat plate 85, and then flows between the bellows member 86 and the bellows member 87. The gas-containing liquid 3 further flows between the bellows member 87 and the bellows member 88, and then flows inside the bellows member 88. Thereafter, the gas-containing liquid 3 reaches the outlet forming member 84 and is discharged from the outlet. The bellows structure of the bellows members 86-88 and the serpentine flow path formed by the bellows members 86-88 have the effect of generating bubble nuclei 3a in the gas-containing liquid 3. The electrolysis unit 21 is attached to the side surface of the flat plate 85 on the inlet forming member 83 side.

[0144] The spiral member 89 is disposed inside the bellows member 88 and has a spiral shape. The spiral member 89, together with the bellows members 86 to 88, also has the effect of generating bubble nuclei 3a in the gas-containing liquid 3.

[0145] According to this configuration example, it is possible to realize a compact configuration in which the electrolysis section 21 is disposed within the bubble nucleus generation section 12. In this configuration example, a gas-liquid mixer 11 such as a propeller may be disposed upstream of the inlet forming member 83 to promote mixing of the gas 1 generated near the electrolysis section 21 with the liquid 2. In this configuration example, a foaming section 13 such as a Venturi tube may be disposed near the outlet forming member 84. In this configuration example, an ultrasonic generator 81 may be disposed upstream of the inlet forming member 83 so that ultrasonic waves reach the electrolysis section 21.

[0146] As described above, in this embodiment, the gas 1 is generated from the liquid 2 by electrolysis, and the gas-containing liquid 3 containing the gas bubbles 3b is generated using the gas 1 and the liquid 2. Therefore, according to this embodiment, the gas 1 can be easily prepared, and the gas 1 for generating the gas bubbles 3b can be prepared in a suitable manner. Furthermore, according to this embodiment, by forming the electrodes 31 to 33 into a bowl shape or a mesh structure, it is possible to perform electrolysis suitable for generating the gas-containing liquid 3 and the gas bubbles 3b, as described above.

[0147] Fifth embodiment FIG. 23 is a cross-sectional view showing the configuration of the electrolyzing section 21 of the fifth embodiment.

[0148] The electrolyzing section 21 of this embodiment includes electrodes 31, 32, and a DC power supply 36. The electrolyzing section 21 of this embodiment further includes a mounting bracket 91 having a thread groove 91a, and insulating members 92-94.

[0149] In this embodiment, the electrodes 31 and 32 have a cylindrical shape. The electrode 31 is disposed inside the cylinder of the electrode 32 and functions as an anode for electrolysis. The electrode 32 surrounds the electrode 31 and functions as a cathode for electrolysis. The electrodes 31 and 32 in this embodiment also have a mesh structure. The DC power source 36 includes a positive electrode electrically connected to the electrode 31 and a negative electrode electrically connected to the electrode 32.

[0150] The mounting bracket 91 holds the electrodes 31, 32. As described below, the mounting bracket 91 is used to insert the electrodes 31, 32 into a container and attach the electrodes 31, 32 to the container. The thread groove 91a is used to fasten the mounting bracket 91 to the container.

[0151] The insulating member 92 is disposed between the electrodes 31 and 32 near one ends of the electrodes 31 and 32. The insulating member 93 is disposed between the electrodes 31 and 32 near the other ends of the electrodes 31 and 32. The insulating members 92 and 93 electrically insulate the electrodes 31 and 32. The insulating member 94 is disposed between the electrode 32 and the mounting bracket 91.

[0152] FIG. 24 is a diagram showing a configuration example of a gas-containing liquid generation device according to the fifth embodiment.

[0153] The gas-containing liquid generating device of this configuration example is provided in a container 95 capable of containing a liquid 2. FIG. 24 further includes a filter 96 provided in the container 95, and an electrode holder 97 and a screw socket 98 attached to the container 95. The container 95 may include all of the gas-liquid mixing section 11, the bubble nucleus generating section 12, the foaming section 13, and the gas generating section 15 (electrolysis section 21) shown in FIG. 1 and FIG. 3, or may include only some of these. To make the description of the container 95 easier to understand, the right half of FIG. 24 shows a cross section of the container 95, and the left half of FIG. 24 shows the outer shape of the container 95.

[0154] The container 95 has an inlet 95a for introducing the liquid 2 into the container 95. The liquid 2 is, for example, tap water. In this configuration example, tap water is injected into the container 95 from the inlet 95a, and microbubbles and nanobubbles are generated in the tap water contained in the container 95.

[0155] The filter 96 is disposed near the inlet 95a of the container 95. The liquid 2 taken in from the inlet passes through the filter 96. As a result, impurities are removed from the liquid 2.

[0156] In this example configuration, electrodes 31, 32 are inserted into container 95, and mounting bracket 91 that holds electrodes 31, 32 is attached to container 95. Electrode holder 97 holds electrodes 31, 32 and mounting bracket 91. Threaded socket 98 is attached to electrode holder 97 and is used to screw mounting bracket 91 into container 95.

[0157] When electrolysis is performed by electrolysis unit 21 of this configuration example, liquid 2 (tap water) is contained in container 95 so that electrodes 31, 32 are immersed in liquid 2. Then, DC power supply 36 applies a DC voltage between electrodes 31 and 32. As a result, electrolysis of liquid 2 occurs near electrodes 31, 32, and gas 1 is generated in liquid 2. In this configuration example, since liquid 2 is water, oxygen is generated as gas 1 near the anode, and hydrogen is generated as gas 1 near the cathode, and microbubble water or nanobubble water (gas-containing liquid 3) containing oxygen and hydrogen is generated.

[0158] The container 95 may have an outlet for discharging the gas-containing liquid 3. Alternatively, the gas-containing liquid 3 produced in the container 95 may be taken out from the inlet 95a.

[0159] As described above, in this embodiment, the gas 1 is generated from the liquid 2 by electrolysis, and the gas-containing liquid 3 containing the gas bubbles 3b is generated using the gas 1 and the liquid 2. Therefore, according to this embodiment, the gas 1 for generating the gas bubbles 3b can be prepared in a suitable manner, for example, by easily preparing the gas 1. In addition, according to this embodiment, the electrodes 31 and 32 are of a type that can be inserted into the container 95, and therefore the electrodes 31 and 32 and the container 95 can be easily replaced or cleaned.

[0160] Sixth embodiment FIG. 25 is a cross-sectional view showing the configuration of a gas-containing liquid generation device of the sixth embodiment.

[0161] The gas-containing liquid generation device of this embodiment has a similar configuration to the gas-containing liquid generation device shown in Fig. 8. Specifically, the pipe 41 of this embodiment has a similar structure to the pipe 41 shown in Fig. 8. However, in Fig. 25, the gas-liquid mixer 11 and the baffle plate 42 shown in Fig. 8 are omitted. Furthermore, the pipe portion 41c of this embodiment is inclined toward the pipe portion 41b side, not toward the pipe portion 41a side.

[0162] The electrolysis unit 21 of this embodiment includes an electrode 31, a DC power supply 36, and an electrode holder 39, similar to the electrolysis unit 21 shown in FIG. 11, and the electrode 31 is used as a cathode for electrolysis, and the piping section 41c itself is used as an anode for electrolysis. The gas-containing liquid generating device of this embodiment also includes an ultrasonic generator 101 provided in the piping section 41c. The ultrasonic generator 101 can function as the gas-liquid mixing section 11 or the bubble nucleus generating section 12, similar to the ultrasonic generator 67 of FIG. 13 and the ultrasonic generator 81 of FIG. 21. The ultrasonic waves generated by the ultrasonic generator 101 are irradiated to the gas 1 or the liquid 2 near the electrode 31.

[0163] According to this embodiment, like the first to fifth embodiments, it is possible to prepare the gas 1 for generating the bubbles 3b in a suitable manner.

[0164] The gas-containing liquid generation apparatus of the present embodiment may include an electromagnetic wave generator instead of the ultrasonic generator 101 or together with the ultrasonic generator 101. This makes it possible to obtain the same effect as the electromagnetic wave generator 65 in Fig. 13. For example, instead of the ultrasonic generator 101, a magnet for generating electromagnetic waves may be disposed at the position of the ultrasonic generator 101 shown in Fig. 25.

[0165] Seventh embodiment FIG. 26 is a cross-sectional view showing the configuration of a gas-containing liquid generation device of the seventh embodiment.

[0166] The gas-containing liquid generation device of this embodiment has a similar configuration to the gas-containing liquid generation device shown in Fig. 15. Specifically, the gas-containing liquid generation device of this embodiment includes a gas-liquid mixing section 11, a bubble nucleus generation section 12, and a gas generation section 15 (electrolysis section 21) in a structure shown in Fig. 26.

[0167] 26 includes an inlet pipe 111, a housing 112, an outlet pipe 113, a plurality of flow path forming members 114, a plurality of baffle plates 115, a water inlet 116, and a water outlet 117. The inlet pipe 111 includes pipe portions 111a, 111b, and 111c.

[0168] The piping section 111a has an inlet for the liquid 2. The piping section 111b is connected to the piping section 111a and has the same function as the guest gas introduction section 74 in FIG. 15. The gas introduced from the piping section 111b is, for example, air. The piping section 111c is connected to the piping section 111a and has the same function as the piping section 41c in FIG. 25. Thus, the electrolysis section 21 of this embodiment includes an electrode 31 in the piping section 111c, a DC power supply 36 for the electrode 31, and an electrode holder 39 for holding the electrode 31, and the electrode 31 is used as a cathode for electrolysis, and the piping section 111c itself is used as an anode for electrolysis. The gas-containing liquid generating device of this embodiment also includes an ultrasonic generator 101 in the piping section 111c. The electromagnetic wave generator of the sixth embodiment is also applicable to this embodiment.

[0169] The housing 112 is located downstream of the inlet pipe 111 and has a bellows structure. In addition, a flow path forming member 114 and a baffle plate 115 are provided inside the housing 112. Therefore, the flow path inside the housing 112 functions as a bubble nucleus generation section 12 due to the unevenness of the surface and the meandering of the flow path. In addition, the area near the boundary between the inlet pipe 111 and the housing 112 functions as a gas-liquid mixing section 11 and a bubble nucleus generation section 12 due to the action of the ultrasonic generator 101, etc.

[0170] The outlet pipe 113 is located downstream of the housing 112, and the gas-containing liquid 3 containing bubble nuclei 3a flows in from the housing 112. The gas-containing liquid 3 is discharged from the outlet pipe 113. The foaming unit 13 of this embodiment is provided outside the structure shown in FIG. 26, and generates bubbles 3b in the gas-containing liquid 3 discharged from the outlet pipe 113. An electric pump for generating negative pressure may be provided between the outlet pipe 113 and the foaming unit 13. This makes it possible to promote electrolysis by the electrolysis unit 21, gas-liquid mixing by the gas-liquid mixing unit 11, and bubble nuclei generation by the bubble nuclei generation unit 12 by negative pressure, and makes it possible to reduce power consumption in the structure shown in FIG. 26.

[0171] The water inlet 116 and the water outlet 117 are provided in the housing 112 in order to supply and discharge water for temperature adjustment. This makes it possible to adjust the temperature of the gas-containing liquid 3 by heat exchange between the gas-containing liquid 3 and the water.

[0172] According to this embodiment, like the first to sixth embodiments, it is possible to prepare the gas 1 for generating the bubbles 3b in a suitable manner.

[0173] Eighth embodiment FIG. 27 is a cross-sectional view showing the configuration of a gas-containing liquid generation device according to the eighth embodiment.

[0174] In this embodiment, the gas generating unit 15 (electrolyzing unit 21) shown in Fig. 3 is provided in a catheter 121 for use in humans or animals. The catheter 121 includes a cap portion 122, an insulating member 123, an insulating member 124, a two-core electric wire 125, and a partition wall 126. Fig. 27 further shows an adaptor 127 for the catheter 121, and electrodes 31, 32 of the electrolyzing unit 21.

[0175] The cap portion 122 is provided at the tip of the catheter 121. The electrodes 31 and 32 of this embodiment are provided near the cap portion 122 and are used as a cathode and an anode for electrolysis, respectively. Each of the electrodes 31 and 32 of this embodiment is a solid wire having a linear shape, for example, a woven solid wire. The insulating member 123 is provided between the electrodes 31 and 32. The insulating member 124 is provided between the electrodes 31 and 32 and the cap portion 122.

[0176] The two-core electric wire 125 includes a wire for the electrode 31 and a wire for the electrode 32. A partition wall 126 is provided for separating the two-core electric wire 125. As shown in FIG. 27, the adapter 127 is used to supply a voltage to the two-core electric wire 125. The adapter 127 of this embodiment supplies an AC voltage. Note that the adapter 127 of this embodiment may supply a DC voltage instead of an AC current, for example, a DC voltage of 1 to 24 V.

[0177] The catheter 121 of this embodiment is used by being inserted into, for example, the human heart. This makes it possible to supply the gas 1 generated by the electrolysis unit 21 to the heart. Furthermore, according to this embodiment, by providing the gas-liquid mixing unit 11, the bubble nucleus generating unit 12, and the foaming unit 13 near the electrolysis unit 21 inside the catheter 121, it becomes possible to supply the bubbles 3b generated from the gas 1 to the heart. In this case, the liquid 2 can be, for example, water, blood, medicinal water, etc.

[0178] According to this embodiment, like the first to seventh embodiments, it is possible to prepare the gas 1 in a suitable manner.

[0179] Although specific examples of the present invention have been described above using the first to fifth embodiments of the present invention, the present invention is not limited to these embodiments. These embodiments can be implemented with various modifications within the scope of the present invention. The scope of the present invention also includes such modified forms. [Explanation of symbols]

[0180] 1: gas, 1a: gas molecules, 2: liquid, 2a: liquid molecules, 3: gas-containing liquid, 3a: bubble nucleus, 3b: bubble, 11: gas-liquid mixing section, 12: bubble nucleation section, 13: Foaming section, 14: Purification tank, 15: Gas generation section, 21: electrolysis section, 21a: opening, 31: Electrode, 31a: Opening, 32: Electrode, 32a: Opening, 33: Electrode, 33a: opening, 34: insulating O-ring, 35: conductive O-ring, 36: DC power source, 37: insulating member, 37a: opening, 38: insulating member, 38a: opening, 39: electrode holder, 39a: set screw, 39b: thread groove, 41: Piping, 41a: Piping part, 41b: Piping part, 41c: piping section, 42: baffle plate, 51: faucet, 51a: main body, 51b: spout, 51c: handle, 51d: spindle, 51e: piping, 52: flow sensor, 53: propeller, 61: submersible device, 62: housing, 62a: upper end, 62b: tube portion, 62c: cylindrical portion, 62d: lower end portion, 63: upper filter, 64: lower filter, 65: electromagnetic wave generator, 66: pump, 67: ultrasonic generator, 71: submersible device, 72: casing, 73: filter, 74: guest gas introduction part, 75: electric motor, 76: impeller, 77: insulating member, 81: ultrasonic generator; 82: housing; 83: inlet forming member; 84: outlet forming member, 85: flat plate, 86: bellows member, 87: bellows member, 88: bellows member, 89: spiral member, 91: mounting bracket, 91a: screw groove, 92: insulating member, 93: insulating member, 94: insulating member, 95: container, 95a: inlet, 96: filter, 97: electrode holder, 98: screw socket, 101: ultrasonic generator; 111: inlet pipe; 111a: Piping part, 111b: Piping part, 111c: Piping part, 112: housing; 113: outlet pipe; 114: flow path forming member; 115: baffle plate, 116: water inlet, 117: water outlet, 121: catheter, 122: cap portion, 123: insulating member, 124: insulating member, 125: two-core electric wire, 126: partition wall, 127: adapter

Claims

1. a gas generating unit that generates a gas from a liquid by electrolysis of the liquid; a bubble generating unit that mixes the gas and the liquid to generate a gas-containing liquid and generates bubbles in the gas-containing liquid; A gas-containing liquid generating device comprising:

2. The gas-containing liquid generation device according to claim 1 , wherein the gas generation unit includes one or more first electrodes serving as an anode in the electrolysis, and one or more second electrodes serving as a cathode in the electrolysis.

3. The gas-containing liquid generation device according to claim 2 , wherein the gas generating unit includes the first and second electrodes having a mesh structure.

4. The gas-containing liquid generating device according to claim 2 , wherein the first and second electrodes have a cylindrical shape.

5. The gas-containing liquid generating device according to claim 2 , wherein the first and second electrodes have a bowl-like shape.

6. The gas-containing liquid generating device according to claim 5 , wherein the first and second electrodes have a shape having an opening at the bottom of a bowl.

7. The gas-containing liquid generation device according to claim 6 , further comprising an ultrasonic generator that generates ultrasonic waves that reach the opening.

8. The gas-containing liquid generation device according to claim 2 , wherein the gas generating unit includes the first and second electrodes inserted into a container that contains the liquid.

9. The gas-containing liquid generation device according to claim 2 , wherein the gas generating unit further includes an insulator sandwiched between one of the first electrodes and one of the second electrodes.

10. The gas-containing liquid generation device according to claim 9 , wherein the gas generating unit includes the insulator having a mesh structure.

11. The gas-containing liquid generation device according to claim 9 , wherein the insulator has a ring-shaped or cylindrical shape.

12. 3. The gas-containing liquid generation device according to claim 2, wherein the gas generating unit further includes a conductor sandwiched between two of the first electrodes or between two of the second electrodes.

13. The gas-containing liquid generation device according to claim 12 , wherein the conductor has a ring shape.

14. The gas-containing liquid generation device according to claim 2 , wherein the gas generation unit further includes a DC power source that generates a voltage between the first electrode and the second electrode.

15. A pipe including a first portion having an inlet for the liquid, a second portion having an outlet for the gas-containing liquid, and a third portion connected to the first and second portions; The gas-containing liquid generation device according to claim 1 , wherein the gas generation unit is provided in the third portion.

16. The gas-containing liquid generation device according to claim 1 , wherein the gas generating unit and the bubble generating unit are provided at a faucet or upstream of a faucet.

17. The gas generating unit includes one or more first electrodes serving as an anode of the electrolysis and one or more second electrodes serving as a cathode of the electrolysis, One of the first and second electrodes is a pipe constituting the faucet or a pipe provided upstream of the faucet; The other of the first and second electrodes is provided within the pipe. The gas-containing liquid generating device according to claim 16.

18. The gas-containing liquid generating device according to claim 1 , wherein the gas generating unit and the bubble generating unit are provided in a diving device configured to be used underwater.

19. The gas-containing liquid generating device according to claim 1 , wherein the gas generating unit is provided in a catheter configured for use in humans or animals.

20. The bubble generating unit is A gas-liquid mixer that mixes the gas and the liquid to generate the gas-containing liquid; a liquid treatment unit that treats the gas-containing liquid supplied from the gas-liquid mixing unit; a bubble generating section for generating bubbles in the gas-containing liquid supplied from the liquid treatment section; The gas-containing liquid generating device of claim 1 .

21. The gas-containing liquid generation device according to claim 20 , wherein the gas generation unit is provided in the liquid treatment unit.

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