High dissolved oxygen water supply system

Abstract

To provide a highly dissolved oxygen water supply system for generating and supplying highly dissolved oxygen water having a high dissolved acid concentration by more efficiently dissolving oxygen contained in air in water.SOLUTION: A flow path 10 through which air flows, a flowing device 30 that draws external air from an inlet 10A of the flow path 10 and causes the air to flow in the flow path 10, a water particles applying and generating section 40 that applies or generates fine water particles to the air flowing in the flow path 10, A high dissolved oxygen water supply system 2 includes an oxygen dissolution region 16 in which oxygen contained in air around fine water particles is dissolved in the fine water particles when air containing fine water particles flows, and a high dissolved oxygen water generation region 20 in which an outlet 1-B of a flow path 10 is opened to flowing water or stationary water, and fine water particles with a large amount of dissolved oxygen generated in the oxygen dissolution region 16 are supplied to water from the outlet 1-B to generate high dissolved oxygen water with a large amount of dissolved oxygen.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a high-dissolved-oxygen water supply system that supplies high-dissolved-oxygen water having a high dissolved oxygen concentration. [Background technology]

[0002] There has been growing interest in using water with a high dissolved oxygen concentration in various fields, including fish farming and hydroponic plant cultivation. To produce such water with a high dissolved oxygen concentration, an oxygen dissolution device has been proposed in which a liquid is dropped through the air and then passed through a cylindrical tube with cylindrical protrusions (see, for example, Patent Document 1). In the device described in Patent Document 1, air is entrained in the liquid as it is dropped through the air, and the liquid is agitated by Karman vortices generated in the cylindrical tube, dissolving the oxygen contained in the entrained air bubbles into the liquid, thereby producing water with a high dissolved oxygen concentration. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2023-65117 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the device described in Patent Document 1, air is only entrained in the liquid for a short time while the liquid falls inside the cylindrical tube, so the amount of dissolved oxygen absorbed into the liquid is limited and the dissolved acid concentration in the liquid cannot be effectively increased.

[0005] Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a high-dissolved oxygen water supply system that more efficiently dissolves oxygen contained in air into water to generate and supply high-dissolved oxygen water having a high dissolved acid concentration. [Means for solving the problem]

[0006] In order to achieve the above object, one aspect of the present invention is to provide a method for manufacturing a semiconductor device comprising: A flow path through which air flows inside; a flow device that draws in outside air from an inlet of the flow path and causes the air to flow through the flow path; a water particle applying / generating unit that applies or generates fine water particles to the air flowing through the flow path; an oxygen dissolution region in the flow path downstream of the water particle application / generation unit, in which, when air containing fine water particles flows, oxygen contained in the air surrounding the fine water particles dissolves in the fine water particles to generate fine water particles with a high dissolved oxygen content; an outlet of the flow path opens into flowing water or still water, and fine water particles with a high dissolved oxygen content generated in the oxygen dissolution region are supplied from the outlet to the water together with air, thereby generating high-dissolved-oxygen water; and This is a high dissolved oxygen water supply system equipped with the above. [Effects of the Invention]

[0007] According to this aspect, it is possible to provide a high-dissolved-oxygen water supply system that more efficiently dissolves oxygen contained in air into water to generate and supply high-dissolved-oxygen water having a high dissolved acid concentration. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram schematically illustrating a high dissolved oxygen water supply system according to a first embodiment of the present invention. [Figure 2] 2 is a diagram schematically illustrating a first modified example of the high dissolved oxygen water supply system shown in FIG. 1. FIG. [Figure 3] 1. FIG. 4 is a diagram schematically illustrating a second modified example of the high dissolved oxygen water supply system shown in FIG. [Figure 4] FIG. 4 is a diagram schematically illustrating a high dissolved oxygen water supply system according to a second embodiment of the present invention. [Figure 5] FIG. 10 is a diagram schematically illustrating a high dissolved oxygen water supply system according to a third embodiment of the present invention. [Figure 6]FIG. 10 is a diagram schematically illustrating a high dissolved oxygen water supply system according to a fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments and modifications for carrying out the present invention will be described with reference to the drawings. Note that the high dissolved oxygen water supply system described below is intended to embody the technical concept of the present invention, and unless otherwise specified, the present invention is not limited to the following.

[0010] In each drawing, components having the same function may be assigned the same symbol. For convenience, the embodiments and modifications may be shown separately to facilitate explanation or understanding of the main points, but partial substitution or combination of the configurations shown in different embodiments and modifications is possible. In the embodiments and modifications described below, descriptions of matters common to the above will be omitted, and only the differences will be described. In particular, similar effects due to similar configurations will not be mentioned sequentially for each embodiment and modification. The size and positional relationship of components shown in each drawing may be exaggerated to clarify the explanation.

[0011] (High dissolved oxygen water supply system according to the first embodiment of the present invention) First, a highly dissolved oxygen water supply system according to a first embodiment of the present invention will be described with reference to Fig. 1. Fig. 1 is a diagram schematically showing a highly dissolved oxygen water supply system according to the first embodiment of the present invention. A highly dissolved oxygen water supply system 2 according to the first embodiment is a system for producing highly dissolved oxygen water and supplying it to an aquaculture tank for cultivating fish.

[0012] The high dissolved oxygen water supply system 2 includes a flow path 10 through which air flows. In this embodiment, the flow path 10 is formed of metal piping. The flow path 10 is composed of an inlet region 12, a cooled region 14, and an oxygen-dissolved region 16, in that order along the air flow. An inlet 10A, which is an opening on the inlet side of the flow path 10, is disposed at the inlet end of the inlet region 12. Note that the terms inlet and outlet described below correspond to the flow of air or water. A filter 32 is attached to the inlet 10A to remove dust and other particles from the air taken into the flow path 10.

[0013] A humidifier 50 is disposed near the inlet 10A of the flow path 10 to humidify the air flowing into the inlet 10A of the flow path 10. The humidifier 50 serves to raise the humidity of the air flowing into the flow path 10 to a predetermined value or higher when the atmosphere is dry. Any known humidifier that humidifies air by vibrating water with ultrasonic waves or by heating it to generate steam can be used as the humidifier 50. However, the present invention is not limited to this. For example, instead of or together with the humidifier 50, a water curtain device can be disposed near the inlet 10A of the flow path 10 using piping with a water spray nozzle.

[0014] A compressor 30 functioning as a flow device is disposed in the inlet region 12 of the flow path 10. The compressor (flow device) 30 can draw in outside air from the inlet 10A of the flow path 10 and discharge the air toward the downstream cooled region 14 and oxygen dissolution region 16. This allows a large flow rate of air to flow within the flow path 10. However, the flow device is not limited to a compressor, and any other flow device that moves gas, such as a blower or fan, can be used.

[0015] A cooling device 40 that functions as a water particle applying unit is attached to the outer periphery of the piping that forms the cooled region 14, which is connected to the inlet region 12. The cooling device (water particle applying unit) 40 cools the metal piping that forms the cooled region 14. Because metal piping has high thermal conductivity, the inner surface of the piping also quickly cools, effectively cooling the air flowing inside the cooled region 14. The cooling device (water particle applying unit) 40 can be any known cooling device, such as a cooling device that uses a refrigerant or a Peltier element.

[0016] The region of the flow path 10 downstream of the cooling device (water particle application / generation unit) 40 in the air flow is called the oxygen dissolution region 16. An outlet 10B, which is an opening on the outlet side of the flow path 10, is arranged at the outlet end of the oxygen dissolution region 16. The outlet 10B opens into a water circulation line 64 of the aquaculture tank 60, which will be described later. More specifically, the outlet 10B is located near an inlet 64A of the circulation line 64.

[0017] Next, the aquaculture tank 60 to which high-dissolved-oxygen water is supplied by the high-dissolved-oxygen water supply system 2 will be described. Water is stored in the aquaculture tank 60, and farmed fish swim in the water within the aquaculture tank 60. The water stored in the aquaculture tank 60 can be either freshwater or seawater. Furthermore, a circulation pump 62 and a circulation line 64 are provided to circulate the water stored in the aquaculture tank 60. By operating the circulation pump 62, water within the aquaculture tank 60 flows into the circulation line 64 from an inlet 64A of the circulation line 64, flows through the circulation line 64, and is returned to the aquaculture tank 60 from an outlet 64B of the circulation line 64.

[0018] Within the aquaculture tank 60, the inlet 64A and outlet 64B of the circulation line 64 are positioned at separate locations, allowing the water within the aquaculture tank 60 to flow and circulate. An adjustment tank 66 is located above the circulation line 64. An adjustment port 64C, which is an opening provided midway along the circulation line 64, opens to the upper side of the adjustment tank 66. A drain line 68 is also attached to the adjustment tank 66. Furthermore, the circulation line 64 is also provided with a supply port 64D for supplying feed for the farmed fish, nutrients, etc. to the circulating water.

[0019] <Air and water flow> Next, the flow of air and water in the high dissolved oxygen water supply system 2 configured as described above will be explained. Outside air drawn into the flow path 10 by the compressor (flow device) 30 is cooled by the cooling device (water particle applying / generating unit) 40 as it flows through the cooled region 14. As the temperature of the cooled air decreases, the water vapor in the air liquefies, generating fine water particles. Then, as the air containing the fine water particles flows through the oxygen dissolution region 16 downstream of the cooling device (water particle applying / generating unit) 40, oxygen contained in the air surrounding the fine water particles is dissolved into the fine water particles. This generates fine water particles with a high dissolved oxygen content.

[0020] In Figure 1, the fine water particles generated by the temperature drop are shown as small white circles, and the fine water particles that have a high dissolved oxygen content due to oxygen from the air being dissolved in them are shown as small black circles. This is also true for the subsequent figures.

[0021] Because water particles have a roughly spherical shape, they have the largest surface area relative to their volume. In other words, the surface area in contact with air is the largest relative to their volume, and more oxygen is dissolved into the water particles from the surrounding air that contacts their surfaces. In particular, because the fine water particles flow through the oxygen dissolution region 16 together with the air, the contact between the surfaces of the fine water particles and the air is stronger, which increases the amount of oxygen dissolved in the water particles.

[0022] Furthermore, if the water particles present in the air are fine water particles, a larger number of fine water particles can be contained relative to the flow rate of air flowing through the flow path. Even if the total volume of the fine water particles is the same, if there are more fine water particles with smaller volumes, the total surface area of ​​the fine water particles will be larger, and more oxygen can be dissolved.

[0023] In this manner, in this embodiment, the cooling device 40 that cools the flow path is provided as the water particle application / generation unit, and the temperature of the air flowing in the cooled region (flow path) 14 is reduced, generating fine water particles from the water vapor in the air. This makes it possible to efficiently generate fine water particles in the air flowing in the region (flow path) 14 to be cooled without providing a complicated device for generating fine water particles.

[0024] It is preferable that the cooling device (water particle application / generation unit) 40 cools the air flowing in the cooled region (flow path) 14 to a temperature in the range of 1° C. to 5° C. By keeping the temperature of the air flowing in the cooled region (flow path) 14 within this range, a larger number of fine water particles can be efficiently generated without freezing.

[0025] As described above, by providing the humidifier 50 that humidifies the air flowing into the inlet 10A of the flow path 10, a sufficient amount of fine water particles can be generated even when the air is dry.

[0026] Furthermore, as described above, by using a compressor 30 that discharges air at high pressure as a flow device, the flow rate of air flowing through the flow path 10 can be increased, and in turn, the dissolved oxygen concentration of the high dissolved oxygen water produced can be efficiently increased.

[0027] As described above, water in the aquaculture tank 60 flows into the circulation line 64 from the inlet 64A of the circulation line 64, flows through the circulation line 64, and is returned to the aquaculture tank 60 from the outlet 64B of the circulation line 64. At this time, fine water particles with a high dissolved oxygen content, which are produced in the oxygen dissolution region 16, are supplied to the water flowing in the circulation line 64 together with air from the outlet 10B of the flow path 10 (oxygen dissolution region 16).

[0028] An outlet 10B of the flow path 10 (oxygen dissolution region 16) is located near an inlet 64A in the circulation line 64. Fine water particles with a high dissolved oxygen content are supplied from outlet 10B together with air to the water that flows from inlet 64A through the outside of the piping that forms flow path 10 (oxygen dissolution region 16) into the circulation line 64. The fine water particles supplied from outlet 10B mix with the flowing water to produce high dissolved oxygen water.

[0029] As shown by the dotted oval in Figure 1, outlet 10B of flow path (oxygen dissolution region 16) 10 opens into the flowing water, and fine water particles with a high dissolved oxygen content produced in oxygen dissolution region 16 along with air are supplied from outlet 10B to the water, forming high dissolved oxygen water production region 20 where high dissolved oxygen water is produced. Note that outlet 10B of flow path (oxygen dissolution region 16) 10 may not only open into flowing water, but may also open into still water, as will be described later.

[0030] Air that flows into the high dissolved oxygen water generating region 20 from the outlet 10B of the flow path 10 (oxygen dissolution region 16) turns into bubbles, moves upward in the circulation line 64 along with the flow of water, and is released into the atmosphere from the adjustment port 64C provided on the upper side of the circulation line 64. Dirt in the water adheres to the bubbles, so the dirt in the water can be removed together with the bubbles (foam).

[0031] Excess water flows out of the adjustment port 64C into the adjustment tank 66 and is discharged through the drain line 68. This allows the removal of bubbles and easily floating dirt, and also allows the water level in the aquaculture tank 60 to be maintained at a predetermined height.

[0032] Fine water particles with a high dissolved oxygen content flow in from outlet 10B of flow path 10 (oxygen dissolution region 16), and the generated high-dissolved-oxygen water flows through circulation line 64 and into aquaculture tank 60. This effectively increases the dissolved oxygen concentration of the water in aquaculture tank 60. While the water in aquaculture tank 60 is circulated using circulation line 64, high-dissolved-oxygen water is continuously generated in high-dissolved-oxygen-water generation region 20 by high-dissolved-oxygen water supply system 2, so the dissolved oxygen concentration of the water in aquaculture tank 60 can be effectively increased.

[0033] As described above, in the high dissolved oxygen water supply system 2 according to the first embodiment, high dissolved oxygen water generated in the high dissolved oxygen water generation region 20 is supplied to the fish culture tank 60. Normally, air and oxygen are supplied to the water in the culture tank using a pump, but this generates noise and bubbles, which have an adverse effect on the fish. However, in this embodiment, by supplying high dissolved oxygen water to the culture tank 60, the dissolved oxygen concentration of the water in the culture tank 60 can be increased without having an adverse effect on the fish.

[0034] (Modification 1 of the water particle application generation unit) Next, a first variation of the high dissolved oxygen water supply system, particularly a variation of the water particle imparting / generating unit, will be described with reference to Fig. 2. Fig. 2 is a diagram schematically showing the first variation of the high dissolved oxygen water supply system shown in Fig. 1. In the embodiment shown in Fig. 1, a cooling device 40 is provided as the water particle imparting / generating unit, but the first variation does not include a cooling device.

[0035] Instead, a region 18 with an increased cross-sectional area that functions as a water particle applying / generating portion is formed in the flow path 10. This region 18 with an increased cross-sectional area is disposed at a position corresponding to the cooled region 14 in which the cooling device 40 of the embodiment shown in FIG. 1 is disposed. Thus, in the first modification, the flow path 10 is composed of the inlet region 12, the region with an increased cross-sectional area (water particle applying / generating portion) 18, and the oxygen dissolution region 16.

[0036] In the first modification, a region 18 with an increased cross-sectional area of ​​the flow path is provided in the flow path 10 as a water particle applying / generating section for expanding the high-pressure air discharged from the compressor (flow device) 30, and fine water particles are generated from the water vapor in the air as the temperature drops due to the expansion of the air. In the first modification, the air pressurized by the compressor (flow device) 30 is adiabatically expanded, thereby rapidly lowering the temperature and efficiently generating fine water particles. As for other parts, there are no differences from the embodiment shown in FIG. 1, and further detailed description will be omitted.

[0037] (Modification 2 of the water particle application generation unit) Next, a second variation of the high dissolved oxygen water supply system, particularly a variation of the water particle application / generation unit, will be described with reference to Fig. 3. Fig. 3 is a diagram schematically showing the second variation of the high dissolved oxygen water supply system shown in Fig. 1. This second variation also does not include the cooling device 40 shown in the embodiment shown in Fig. 1.

[0038] Instead, a device 42 for generating fine water particles that functions as a water particle applying / generating unit is provided. The region of the flow path 10 to which the device 42 for generating fine water particles (water particle applying / generating unit) is connected becomes the cooled region 14. Therefore, in the second modification, the flow path 10 is made up of the inlet region 12, the cooled region 14, and the oxygen dissolution region 16.

[0039] Examples of the device for generating fine water particles (water particle applying / generating unit) 42 include a device that generates fine water particles by vibrating water with ultrasonic waves, and a device that generates fine water particles by heating water to generate steam. A device similar to the humidifier 50 described above and disposed near the inlet 10A of the flow path 10 can also be used. The device for generating fine water particles (water particle applying / generating unit) 42 can supply fine water particles directly to the air flowing through the cooled region 14 of the flow path 10.

[0040] As described above, in the second modification, the water particle applying / generating unit includes a device 42 that generates fine water particles by vibrating water with ultrasonic waves or by heating water to generate steam, and the fine water particles generated by the device 42 are applied to the air flowing through the flow path 10. By using such a device 42 that generates fine water particles with ultrasonic waves or steam, it is possible to easily and reliably include fine water particles in the air. As for other parts, there are no differences from the embodiment shown in FIG. 1, and further detailed description will be omitted.

[0041] As described above, the high dissolved oxygen water supply system 2 of this embodiment, including the above-mentioned modified examples, comprises a flow path 10 through which air flows, a flow device 30 that draws in external air from the inlet 10A of the flow path 10 and flows it through the flow path 10, a water particle applying / generating unit 40 (18, 42) that applies or generates fine water particles to the air flowing through the flow path 10, an oxygen dissolution region 16 that is a region downstream of the water particle applying / generating unit 40 (18, 42) of the flow path 10, in which, when air containing fine water particles flows, oxygen contained in the air surrounding the fine water particles dissolves into the fine water particles to generate fine water particles with a high dissolved oxygen content, and a high dissolved oxygen water generation region 20 in which an outlet 10B of the flow path 10 opens into flowing water or still water, and fine water particles with a high dissolved oxygen content generated in the oxygen dissolution region 16 are supplied to the water from outlet 10B together with air, thereby generating highly dissolved oxygen water.

[0042] In this embodiment, a high-dissolved oxygen water supply system 2 can be provided that uses the flow of air containing fine water particles to more efficiently dissolve the oxygen contained in the air into water (fine water particles), thereby generating and supplying high-dissolved oxygen water with a high dissolved acid concentration.

[0043] (High dissolved oxygen water supply system according to a second embodiment of the present invention) Next, a highly dissolved oxygen water supply system according to a second embodiment of the present invention will be described with reference to Fig. 4. Fig. 4 is a diagram schematically showing a highly dissolved oxygen water supply system according to the second embodiment of the present invention. In the highly dissolved oxygen water supply system 2 according to the second embodiment, highly dissolved oxygen water produced in the highly dissolved oxygen water production region 20 is used for hydroponic cultivation. The system 2 for producing highly dissolved oxygen water is the same as that of the first embodiment. Modifications 1 and 2 described above can also be adopted.

[0044] In the second embodiment, water is stored in a hydroponic tank 70, and plants to be grown hydroponically are placed with their roots submerged in water. A circulation pump 72 and a circulation line 74 are also provided to circulate the water stored in the hydroponic tank 70. By operating the circulation pump 72, the water in the hydroponic tank 70 flows into the circulation line 74 from an inlet 74A of the circulation line 74, flows through the circulation line 74, and is returned to the hydroponic tank 70 from an outlet 74B of the circulation line 74.

[0045] In the aquarium tank 70 for hydroponic cultivation, an inlet 74A and an outlet 74B of the circulation line 74 are positioned at separate locations, allowing the water in the aquarium tank 70 to flow and circulate. An adjustment tank 76 is disposed above the circulation line 74, and an adjustment port 74C, which is an opening provided midway along the circulation line 74, opens to the upper side of the adjustment tank 76. A drain line 78 is attached to the adjustment tank 76. The circulation line 74 is also provided with a supply port 74D for supplying liquid or water-soluble nutrients for plants to the circulating water.

[0046] As shown in Figure 4, outlet 10B of flow path 10 (oxygen dissolution region 16) is located near inlet 74A in circulation line 74. Fine water particles with a high dissolved oxygen content are supplied from outlet 10B together with air to water that flows into circulation line 74 from inlet 74A. The fine water particles supplied from outlet 10B of flow path 10 (oxygen dissolution region 16) are supplied to the flowing water and mix with the flowing water to produce high dissolved oxygen water.

[0047] As shown by the dotted oval in Figure 4, outlet 10B of flow path 10 (oxygen dissolution region 16) opens into the flowing water, and fine water particles with a high dissolved oxygen content are supplied to the water from outlet 10B along with air, forming high dissolved oxygen water generation region 20 where high dissolved oxygen water is generated.

[0048] Air that flows into the high dissolved oxygen water generating region 20 from the outlet 10B of the flow path 10 (oxygen dissolution region 16) turns into bubbles, moves upward in the circulation line 74 along with the flow of water, and is released into the atmosphere from the adjustment port 74C provided on the upper side of the circulation line 74. Dirt in the water adheres to the bubbles, so the dirt in the water can be removed together with the bubbles (foam).

[0049] Fine water particles with a high dissolved oxygen content flow in from outlet 10B of flow path 10 (oxygen dissolution region 16), and the high dissolved oxygen water generated in high dissolved oxygen water generation region 20 flows through circulation line 64 and into aquarium tank 70 for hydroponic cultivation. This effectively increases the dissolved oxygen concentration of the water in aquarium tank 70. While the water in aquarium tank 70 is circulated using circulation line 74, high dissolved oxygen water is continuously generated in high dissolved oxygen water generation region 20 by high dissolved oxygen water supply system 2, so the dissolved oxygen concentration of the water in aquarium tank 70 can be effectively increased.

[0050] Excess water flows out of the adjustment port 74C into the adjustment tank 76 and is discharged via the drain line 78. This allows the removal of bubbles and easily floating dirt, and also allows the water level in the hydroponic tank 70 to be maintained at a predetermined height.

[0051] As described above, in the high dissolved oxygen water supply system 2 according to the second embodiment, the high dissolved oxygen water generated in the high dissolved oxygen water generation region 20 is supplied as water for hydroponic cultivation. By using the high dissolved oxygen water for hydroponic cultivation, it is expected that the growth of the plants being cultivated will be promoted.

[0052] (High dissolved oxygen water supply system according to a third embodiment of the present invention) Next, a highly dissolved oxygen water supply system according to a third embodiment of the present invention will be described with reference to Fig. 5. Fig. 5 is a schematic diagram showing a highly dissolved oxygen water supply system according to the third embodiment of the present invention. In a highly dissolved oxygen water supply system 2 according to the third embodiment, highly dissolved oxygen water produced in a highly dissolved oxygen water production region 20 is used for aeration or for improving the water quality of a closed water body. The system 2 for producing highly dissolved oxygen water is the same as that of the first embodiment. Modifications 1 and 2 described above can also be adopted.

[0053] In the example shown in Fig. 5, outlet 10B of flow path 10 (oxygen dissolution region 16) is placed in the wastewater stored in aeration tank 80. Outlet 10B of flow path 10 (oxygen dissolution region 16) is composed of multiple holes formed in the piping that forms flow path 10, and the piping is placed near the bottom of aeration tank 80. Fine water particles with a high dissolved oxygen content are supplied from outlet 10B together with air to the wastewater stored in aeration tank 80, and mix with the wastewater to produce high dissolved oxygen water.

[0054] As shown by the dotted oval in Figure 5, outlet 10B of flow path 10 (oxygen dissolution region 16) opens into still water, and fine water particles with a high dissolved oxygen content generated in oxygen dissolution region 16 along with air are supplied to the water from outlet 10B, forming high dissolved oxygen water generation region 20 where high dissolved oxygen water is generated.

[0055] The air that flows into the high dissolved oxygen water generating region 20 from the outlet 10B of the flow path 10 (oxygen dissolution region 16) turns into bubbles, moves upward, and is released into the atmosphere from the surface of the water stored in the aeration tank 80. Since dirt in the water adheres to the bubbles, by draining the water with the bubbles (foam) floating in it through the drain 82, the dirt in the water can be removed along with the bubbles (foam).

[0056] Fine water particles with a high dissolved oxygen content flow into the outlet 10B of the flow path 10 (oxygen dissolution region 16), generating high-dissolved-oxygen water, which activates aerobic microorganisms in the wastewater. The effectiveness of aeration can be further enhanced by using high-dissolved-oxygen water in the aeration process to purify wastewater.

[0057] The high-dissolved-oxygen water supply system 2 according to this embodiment can be applied to water quality improvement not only in the aeration tank 80 but also in closed water areas such as bays, lakes, and reservoirs. In recent years, hypoxia has become a problem in such closed water areas due to the oxidative decomposition of organic matter deposited on the bottom of the water. The high-dissolved-oxygen water supply system 2 according to this embodiment can create an aerobic state by supplying high-dissolved-oxygen water to the bottom layer. This can maintain a habitat for aerobic microorganisms and suppress the concentrations of phosphorus and ammonia eluted from the bottom sediment in an anaerobic environment, which is expected to result in more effective water quality improvement.

[0058] As described above, in the high dissolved oxygen water supply system 2 of the third embodiment, the high dissolved oxygen water generated in the high dissolved oxygen water generation region 20 is used to improve the water quality of aerated or closed water areas, which is expected to result in more effective water quality improvement.

[0059] (High dissolved oxygen water supply system according to a fourth embodiment of the present invention) Next, a highly dissolved oxygen water supply system according to a fourth embodiment of the present invention will be described with reference to Fig. 6. Fig. 6 is a diagram schematically showing a highly dissolved oxygen water supply system according to the fourth embodiment of the present invention. In a highly dissolved oxygen water supply system 2 according to the fourth embodiment, highly dissolved oxygen water produced in a highly dissolved oxygen water production region 20 is used as drinking water. The system 2 for producing highly dissolved oxygen water is the same as that of the first embodiment. Modifications 1 and 2 described above can also be adopted.

[0060] In the example shown in Fig. 6, water supplied from a water supply pipe 96 is purified in a water purification device 92. An outlet 10B of the flow path 10 (oxygen dissolution region 16) is located in the region below the water purification device 92. Fine water particles with a high dissolved oxygen content are supplied from outlet 10B together with air to the water in the water purification device 92, and in a high-dissolved-oxygen water generation region 20 indicated by a dotted oval in Fig. 6, the high-dissolved-oxygen water is generated by mixing with the water in the water purification device 92.

[0061] In the high dissolved oxygen water generating region 20 indicated by the dotted oval in Figure 6, the water in the water purification device 92 may be stationary or may be slightly flowing. That is, in this embodiment, the outlet 10B of the flow path 10 (oxygen dissolution region 16) opens into flowing or stationary water, and fine water particles with a high dissolved oxygen content generated in the oxygen dissolution region 16 together with air are supplied to the water from outlet 10B, forming the high dissolved oxygen water generating region 20 where high dissolved oxygen water is generated.

[0062] The generated highly dissolved oxygen water flows into the priming tank 94 above, and only the required amount is supplied to the drinking water tank 90 via the water supply line 94A. This allows purified highly dissolved oxygen water suitable for drinking to be stored in the drinking water tank 90. ​​Note that air that flows into the highly dissolved oxygen water generating region 20 from the outlet 10B of the flow path 10 (oxygen dissolution region 16) moves upward as bubbles and is released into the atmosphere through an air vent 94C provided in the priming tank 94.

[0063] Excess water that is not supplied from the priming tank 94 to the drinking water tank 90 is supplied via a return line 94B to the cooled region 14 of the high dissolved oxygen water supply system 2. For example, using the device 42 for generating fine water particles shown in Modification 2, the water from the return line 94B can be supplied as fine water particles to the cooled region 14. In the oxygen dissolution region 16, oxygen in the air dissolves into the fine water particles, which already have a high dissolved oxygen concentration, further increasing the dissolved oxygen concentration. These fine water particles are supplied again to the water in the water purification device 92 together with air from an outlet 10B.

[0064] As described above, in the highly dissolved oxygen water supply system 2 according to the fourth embodiment, the highly dissolved oxygen water generated in the highly dissolved oxygen water generation region 20 can be used as drinking water. Drinking highly dissolved oxygen water as drinking water is expected to relieve cellular oxygen deficiency caused by stress and have a positive effect on recovery from chronic fatigue, relaxation of the body and mind, beauty, maintenance of health, etc.

[0065] (General Description) <1> A flow path through which air flows inside; a flow device that draws in outside air from an inlet of the flow path and causes the air to flow through the flow path; a water particle applying / generating unit that applies or generates fine water particles to the air flowing through the flow path; an oxygen dissolution region in the flow path downstream of the water particle application / generation unit, in which, when air containing fine water particles flows, oxygen contained in the air surrounding the fine water particles dissolves in the fine water particles to generate fine water particles with a high dissolved oxygen content; an outlet of the flow path opens into flowing water or still water, and fine water particles with a high dissolved oxygen content generated in the oxygen dissolution region are supplied from the outlet to the water together with air, thereby generating high-dissolved-oxygen water; and A high dissolved oxygen water supply system comprising: <2> The water particle applying unit includes a cooling device that cools the flow path, The temperature of the air flowing through the cooled flow path is reduced, and fine water particles are generated from the water vapor in the air. <1> 2. The high dissolved oxygen water supply system according to claim 1. <3> The cooling device is characterized in that the air flowing through the flow path is cooled to a temperature in the range of 1°C to 5°C. <2> 2. The high dissolved oxygen water supply system according to claim 1. <4> a device for humidifying air flowing into the inlet of the flow path; <1> from <3> 1. A high dissolved oxygen water supply system according to any one of the above. <5> The flow device is a compressor that discharges air at high pressure. <1> from <4> 1. A high dissolved oxygen water supply system according to any one of the above. <6> The water particle applying / generating unit is characterized in that a region in the flow path where the cross-sectional area of ​​the flow path is increased is provided to expand the high-pressure air discharged from the compressor, and fine water particles are generated from the water vapor in the air by the temperature drop caused by the expansion of the air. <5> 2. The high dissolved oxygen water supply system according to claim 1. <7> The water particle applying / generating unit is provided with a device that generates fine water particles by vibrating water with ultrasonic waves or by heating water to generate steam, The fine water particles generated by the device are applied to the air flowing through the flow path. <1> from <4> 1. A high dissolved oxygen water supply system according to any one of the above. <8> The high dissolved oxygen water generated in the high dissolved oxygen water generating region is supplied to a fish farming tank. <1> from <7> 1. A high dissolved oxygen water supply system according to any one of the above. <9> The high dissolved oxygen water generated in the high dissolved oxygen water generating region is supplied as water for hydroponic cultivation. <1> from <7> 1. A high dissolved oxygen water supply system according to any one of the above. <10> The high dissolved oxygen water generated in the high dissolved oxygen water generating region is used for aeration or for improving the water quality of closed water areas. <1> from <7> 1. A high dissolved oxygen water supply system according to any one of the above. <11> The high dissolved oxygen water produced in the high dissolved oxygen water production region is used as drinking water. <1> from <7> 1. A high dissolved oxygen water supply system according to any one of the above.

[0066] Although the embodiments and modes of implementation of the present invention have been described, the disclosed contents may vary in the details of the configuration, and changes in the combination and order of elements in the embodiments and modes of implementation may be realized without departing from the scope and spirit of the claimed invention. [Explanation of symbols]

[0067] 2. High dissolved oxygen water supply system 10 Flow path 10A entrance 10B Exit 12 Entry area 14 Area to be cooled 16 Oxygen dissolution region 18 Region with increased cross-sectional area (water particle generation section) 20 High dissolved oxygen water generation area 30 Compressor (flow device) 32 filters 40 Cooling device (water particle application generating unit) 42 Device for generating fine water particles (water particle application / generation unit) 50 Humidifier 60 Aquaculture tank 62 Circulation Pump 64 Circulation Line Entrance 64A 64B Exit 64C adjustment port 64D Supply port 66 Adjustment tank 68 Drain line 70 Hydroponic tank 72 Circulation Pump 74 Circulation Line 74A Entrance 74B Exit 74C Adjustment port 74D Supply port 76 Adjustment tank 78 Drain line 80 Aeration tank 82 Drain 90 Drinking Water Tank 92 Water purification equipment 94 Priming tank 94A Water Supply Line 94B Return line 94C Air vent 96 Water supply piping

Claims

1. A flow path through which air flows inside; a flow device that draws in outside air from an inlet of the flow path and causes the air to flow through the flow path; a water particle applying / generating unit that applies or generates fine water particles to the air flowing through the flow path; an oxygen dissolution region in the flow path downstream of the water particle application / generation unit, in which, when air containing fine water particles flows, oxygen contained in the air surrounding the fine water particles dissolves in the fine water particles to generate fine water particles with a high dissolved oxygen content; an outlet of the flow path opens into flowing water or still water, and fine water particles with a high dissolved oxygen content generated in the oxygen dissolution region are supplied from the outlet to the water together with air, thereby generating high-dissolved-oxygen water; and A high dissolved oxygen water supply system comprising:

2. The water particle applying unit includes a cooling device that cools the flow path, 2. The high dissolved oxygen water supply system according to claim 1, wherein the temperature of the air flowing through the cooled flow path is reduced, and fine water particles are generated from the water vapor in the air.

3. 3. The high dissolved oxygen water supply system according to claim 2, wherein the cooling device cools the air flowing through the flow path to a temperature in the range of 1°C to 5°C.

4. 3. The high dissolved oxygen water supply system according to claim 2, further comprising a device for humidifying air flowing into the inlet of the flow path.

5. 2. The high dissolved oxygen water supply system according to claim 1, wherein the fluidizing device is a compressor that discharges air at high pressure.

6. The high dissolved oxygen water supply system according to claim 5, characterized in that the water particle imparting / generating section is provided with a region in the flow path where the cross-sectional area of ​​the flow path is increased to expand the high-pressure air discharged from the compressor, and fine water particles are generated from the water vapor in the air due to the temperature drop caused by the expansion of the air.

7. The water particle applying / generating unit is provided with a device that generates fine water particles by vibrating water with ultrasonic waves or by heating water to generate steam, 2. The high dissolved oxygen water supply system according to claim 1, wherein the fine water particles generated by the device are added to the air flowing through the flow path.

8. 8. The high dissolved oxygen water supply system according to claim 1, wherein the high dissolved oxygen water generated in the high dissolved oxygen water generation region is supplied to a fish farming tank.

9. 8. The high-dissolved-oxygen water supply system according to claim 1, wherein the high-dissolved-oxygen water generated in the high-dissolved-oxygen water generation region is supplied as water for hydroponic cultivation.

10. 8. A high-dissolved oxygen water supply system according to claim 1, wherein the high-dissolved oxygen water produced in the high-dissolved oxygen water production region is used for aeration or for improving the water quality of a closed water body.

11. 8. The highly dissolved oxygen water supply system according to claim 1, wherein the highly dissolved oxygen water produced in the highly dissolved oxygen water production region is used as drinking water.

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