WO2016117548A1 - Ultrafine-bubble-generating device for bath - Google Patents

Abstract

Provided is an ultrafine-bubble-generating device for use in the bath, with which it is possible to generate large amounts of fine bubbles of uniform size. This shower 1 (ultrafine-bubble-generating device for the bath) discharges water containing ultrafine bubbles, and comprises a water supply part 2 for supplying water, a water supply pipe 3 (water supply passage) linked to the downstream side of the water supply part 2, a discharge part 4 linked to the downstream side of the water supply pipe 3 and having a plurality of spray holes 4a, a bubble-generating medium 5 that is porous and made partially or entirely of a complex of graphite and a non-metal, a gas feed passage 6 through which a gas being fed into the bubble-generating medium 5 passes, and a gas feed means 7 situated to the upstream side of the air feed passage 6, for feeding a gas into the bubble-generating medium 5. The water supply part 2 is provided with a flow rate on-off valve 11 (valve) for opening and closing the air feed passage 6, and the flow rate on-off valve 11 is in an open state when water flows from the water supply part 2.

Description

Ultra-fine bubble generator for bathroom

The present invention relates to a technology of a superfine bubble generator for bathroom that discharges water containing ultrafine bubbles.

In recent years, attention has been paid to a technology that uses ultrafine bubbles having a bubble size (diameter) of less than 100 μm in liquid at normal temperature and pressure. The ultrafine bubbles have a very large surface area and physicochemical properties such as a self-pressurizing effect. Taking advantage of these properties, fish culture, plant cultivation, food washing and sterilization And technology used for decolorization of waste water has been developed.

As a device for generating ultrafine bubbles having the above-mentioned characteristics, a liquid jet nozzle has been conventionally arranged around an air nozzle that discharges air pumped by a compressor, and is discharged from the air nozzle by the force of the jet of the liquid jet nozzle. A method of tearing bubbles to make them fine is known. In addition, an apparatus for subdividing the bubbles while applying the aerated bubbles to the mesh member is known (for example, see Patent Document 1).
Ultra-fine bubbles for bathrooms, including a shower device that discharges water containing ultra-fine bubbles for the purpose of obtaining a beauty effect and health promotion effect, and a water supply system for bathtubs that supplies water containing ultra-fine bubbles to the bathtub A generator is known (see, for example, Patent Document 2).

Japanese Patent No. 3958346 JP 2014-204796 A

Conventional ultra-fine bubble generators for bathrooms are provided with an air introduction path for introducing outside air, and the air introduced from the air introduction path is mixed with hot water, so that ultra-fine bubbles with a diameter of several tens of μm or less are mixed. The hot water containing many is discharged from the water sprinkling hole. However, in the conventional configuration, since ultrafine bubbles are generated by mixing air and water, the size of the ultrafine bubbles varies, and it is not possible to generate uniform-sized ultrafine bubbles. . Further, since the air introduction path is small, a large amount of ultrafine bubbles cannot be generated at one time. Further, when ultrafine bubbles are generated by mixing air and water, a high water pressure is required to some extent. However, for example, the water pressure of tap water in general households is unstable, and a part where the water pressure is locally reduced is created, so that sufficient ultrafine bubbles may not be generated.

Therefore, in view of such problems, the present invention provides an ultrafine bubble generator for bathrooms that can generate a large amount of fine bubbles of uniform size even at low water pressure.

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, the ultrafine bubble generator for bathroom of the present invention is an ultrafine bubble generator for bathroom that supplies water containing ultrafine bubbles having a diameter of less than 100 μm at normal temperature and pressure, and supplies water. A water supply section, a water supply passage connected to the water supply section,
A discharge portion connected to the water supply passage, and a bubble generating medium provided on the downstream side of the water supply portion or the water supply portion, a part or all of which is a composite of graphite and nonmetal and is porous,
An air supply passage through which a gas sent into the bubble generating medium passes, and an air supply means provided on the upstream side of the air supply passage to send the gas into the bubble generating medium, and water flows into the water supply section In this case, ultrafine bubbles are generated in the water from the bubble generating medium.

In the bathroom ultrafine bubble generator of the present invention, a valve for opening and closing the air supply passage is provided, and the valve is opened when water flows into the water supply section.

In the ultrafine bubble generator for a bathroom according to the present invention, the second air supply passage is provided on the upstream side of the second air supply passage and the second air supply passage connected to the air supply passage. And a second air feeding means for sending the gas to.

In the ultrafine bubble generator for a bathroom according to the present invention, the second air supply means has a container for storing volatile aroma oil and an on-off valve.

In the ultrafine bubble generator for a bathroom according to the present invention, the bubble generating medium has a surface portion that generates ultrafine bubbles, and is formed so that water flows along the surface portion.

As the effects of the present invention, the following effects are obtained.

In the apparatus for generating ultrafine bubbles for a bathroom according to the present invention, a large amount of ultrafine bubbles are generated simultaneously from a porous bubble generating medium, so that a large amount of uniform-sized ultrafine bubbles can be generated. . In addition, since the ultrafine bubbles are generated only when the flow rate exceeds a predetermined amount, the gas can be mixed into the water as ultrafine bubbles without waste.

In the ultrafine bubble generator for bathroom of the present invention, ultrafine bubbles are generated only when the flow rate exceeds a predetermined amount without performing electrical control, so gas is mixed into the water as ultrafine bubbles without waste. can do.

In the bathroom ultrafine bubble generator of the present invention, different types of airframes can be mixed and generated from the bubble generating medium as ultrafine bubbles.

In the apparatus for generating ultrafine bubbles for bathrooms of the present invention, the aroma oil containing medicinal components can be vaporized as ultrafine bubbles to supply all the medicinal components to the body of the person taking a bath. .

In the ultrafine bubble generator for a bathroom of the present invention, the superfine bubbles are separated from the bubble generating medium by a water flow to prevent the bubbles from being integrated and enlarged, and a large amount of ultrafine bubbles having a uniform size is produced. Can be generated.

The side surface partial sectional view which showed the whole structure of the shower which concerns on 1st embodiment of this invention. Similarly, the cross-section partially enlarged view showing the configuration of the bubble generating medium. Side surface partial sectional drawing which showed the whole structure of the shower which concerns on 2nd embodiment of this invention. Similarly, the cross-section partially enlarged view showing the configuration of the bubble generating medium. Side surface partial sectional drawing which showed the whole structure of the water supply system for bathtubs concerning 3rd embodiment of this invention. Similarly, the cross-section partially enlarged view showing the configuration of the bubble generating medium. Side surface partial sectional drawing which showed the whole structure of the water supply system for bathtubs which concerns on 4th embodiment of this invention. (A) Side surface partial enlarged view which showed the structure of the medium arrangement | positioning part similarly formed with the bent piping. (B) The side surface partial enlarged view which showed the structure of the medium arrangement | positioning part shown to (A) when the water surface falls. (C) The side surface partial enlarged view which showed the structure of the medium arrangement | positioning part similarly formed with the inclined piping. (D) The side surface partial enlarged view which showed the structure of the medium arrangement | positioning part shown to (C) when the water surface falls. Similarly, the cross-section partially enlarged view showing the configuration of the bubble generating medium.

Next, embodiments of the invention will be described.
First, the whole structure of the shower 1 which is the ultrafine bubble generator for bathrooms concerning one Embodiment of this invention is demonstrated using FIG.

The shower 1 is a device that discharges water containing ultrafine bubbles, a water supply unit 2 that supplies water, a water supply pipe 3 that is a water supply passage connected to the downstream side of the water supply unit 2, and a downstream of the water supply tube 3. A discharge part 4 having a plurality of sprinkling holes 4a, a bubble generation medium 5 which is a composite of a graphite and a nonmetal and partly or entirely porous, and a bubble generation medium 5 An air supply passage 6 through which the gas to be supplied passes, and an air supply means 7 provided on the upstream side of the air supply passage 6 to send the gas into the bubble generating medium 5.

The water supply part 2 is a part which connects with a faucet, a hose, etc., and supplies water. The water supply unit 2 is formed in a cylindrical shape, and an upstream end is connected to a faucet or a hose, and a downstream end is connected to the water supply pipe 3. Moreover, the coupler 2a is provided in the side part of the cylinder.
A flow rate opening / closing valve 11 that is a valve is provided inside the water supply unit 2. The flow rate opening / closing valve 11 is a valve that opens and closes the air supply passage 6 and is configured to be opened when water flowing through the water supply unit 2 exceeds a predetermined flow rate.

The water supply pipe 3 is provided on the downstream side of the water supply section 2 and is constituted by a flexible pipe in this embodiment. A discharge section 4 is provided at the downstream end of the water supply pipe 3.

The discharge part 4 is a cylindrical part configured in an arc shape, and is configured such that the cross-sectional diameter increases toward the downstream end. Further, a plurality of water spray holes 4a having a diameter of about 0.1 to 1 mm are provided at the downstream end.

The bubble generating medium 5 is provided inside the discharge unit 4. As shown in FIGS. 1 and 2, the bubble generating medium 5 is configured to have a spindle shape with a downstream tip portion having a conical shape, and an internal space 5 a is provided therein. The bubble generating medium 5 is partly or entirely formed of a composite of graphite and nonmetal. The bubble generating medium 5 is formed of a porous composite having innumerable fine holes 5b. The bubble generating medium 5 is formed of a complex in which the solid tissue has a molecular structure based on ionic bonds. The bubble generating medium 5 is a conductor, and the bubbles generated from the bubble generating medium 5 are charged with a negative charge.
The countless fine holes 5b are distributed throughout the bubble generating medium 5, and the diameter of the holes is several μm to several tens of μm. The internal space 5a and the surface portion 5c of the bubble generating medium 5 are communicated with each other through a hole 5b.

The bubble generating medium 5 is formed so that water flows along the surface portion 5c, and at least a part of the surface portion 5c is arranged to be orthogonal to the direction in which water flows. In the present embodiment, the bubble generating medium 5 is provided so that the longitudinal direction thereof is parallel to the flow of water in the discharge unit 4. Thereby, the surface portion 5c on the side surface of the bubble generating medium 5 is arranged so as to be orthogonal to the direction in which water flows.

The air supply passage 6 is a passage connecting the air supply means 7 and the bubble generating medium 5 and is constituted by a flexible tube in this embodiment. The downstream end of the air supply passage 6 is connected to the upstream end of the internal space 5 a of the bubble generating medium 5. The upstream end of the air supply passage 6 is connected to the coupler 2a.

The air feeding means 7 is a device for sending gas to the bubble generating medium 5, and includes a high-pressure vessel 21 and a pressure adjusting device 22.
The high-pressure vessel 21 is a vessel that is stored in a compressed state. The gas is composed of, for example, carbon dioxide, oxygen, hydrogen, nitrogen, ozone, or air. The pressure in the high-pressure vessel 21 is 10 to 20 MPa at the time of filling.
The pressure adjusting device 22 is a device that adjusts the pressure when the gas in the high-pressure vessel 21 is discharged, and supplies the air by reducing the pressure of the gas discharged from the high-pressure vessel 21 to 0.1 to 0.3 MPa. Send to passage 6. The gas pressure adjusted by the pressure adjusting device 22 is configured to be greater than the water pressure by 0.05 MPa or more. By comprising in this way, gas can be discharged in water as an ultrafine bubble.
An air supply pipe 23 is connected to the pressure adjusting device 22, and the air supply means 7 is connected to the water supply part 2 and the air supply passage 6 by inserting the downstream end of the air supply pipe 23 into the connector 2 a. Is done.

The discharge of water containing ultrafine bubbles using the shower 1 configured in this manner will be described.

The upstream end of the water supply unit 2 is connected to a faucet or the like. When water is supplied to the water supply unit 2, water is supplied from the water supply unit 2 to the discharge unit 4 through the water supply pipe 3.
Further, when water is supplied to the water supply unit 2, the flow rate on / off valve 11 is opened when the flow rate exceeds a predetermined flow rate. When the flow rate on / off valve 11 is opened, the gas decompressed by the pressure adjusting device 22 is discharged from the high-pressure vessel 21 to the air supply passage 6.
With this configuration, only when water flows from the water supply unit 2, the flow rate on / off valve 11 is opened and gas can be discharged to the air supply passage 6. It can be mixed into water as bubbles.

The gas that has passed through the air supply passage 6 flows into the internal space 5 a of the bubble generating medium 5. As shown in FIG. 2, the gas flowing into the internal space 5a of the bubble generating medium 5 passes through fine holes 5b having a diameter of several μm to several tens of μm, and is discharged as ultrafine bubbles from the surface portion 5c. Moreover, as shown in FIG.1 and FIG.2, at least a part of the surface portion 5c is arranged so as to be orthogonal to the direction in which water flows through the discharge portion 4, so that in the surface portion 5c, the ultrafine bubbles are Since it is separated from the bubble generating medium 5 by the water flow, it is possible to prevent the continuously generated ultrafine bubbles from being combined into a large bubble. Further, since a large amount of ultrafine bubbles are generated from the surface portion 5c at a time, a large amount of ultrafine bubbles can be mixed in water in a short time. The ultrafine bubbles that are separated from the surface portion 5 c of the bubble generating medium 5 are released into the water supplied to the discharge unit 4. Water containing ultrafine bubbles is discharged from the water spray holes 4 a of the discharge unit 4.

Further, with this configuration, even when the water pressure in the water supply pipe 3 is low, ultrafine bubbles can be generated by flowing water along the surface portion 5c of the bubble generating medium 5. . In the case of generating ultrafine bubbles by mixing air and water as in the prior art, a water pressure of 0.1 MPa or more is necessary. However, in this embodiment, even if the water pressure is 0.1 MPa, If there is a water flow having a flow velocity of 10 cm / s or more around the surface portion 5c, the ultrafine bubbles are separated from the bubble generating medium 5 by the waterflow in the surface portion 5c, and thus the ultrafine bubbles can be generated.

Since the ultrafine bubbles contained in the water discharged from the shower 1 have characteristics such as a very large surface area and chemical characteristics such as a self-pressurizing effect, they can stay in the water for a longer time.
Water containing ultrafine bubbles is negatively charged and has a high cleaning effect. In addition, since the ultrafine bubbles have a large surface area, when the shower 1 is used facing the human body, there are many opportunities for the ultrafine bubbles to come into contact with the skin, and the cleaning effect becomes higher.

Moreover, when the shower 1 is arranged in the vicinity of a bathtub (not shown), it can generate ultrafine bubbles in the water in the bathtub by using it in the bathtub.

Moreover, since the shower 1 can be easily replaced with an existing shower by removing the water supply part attached to the existing faucet and attaching the water supply part 2, the shower 1 can be easily applied to existing facilities. be able to.

Further, as another embodiment, as shown in FIG. 3, a bubble generating medium 5 can be provided in the water supply unit 2. In addition, about structures other than the water supply part 2 and the bubble generation medium 5, since it is the structure similar to 1st embodiment, description is abbreviate | omitted.

Inside the water supply unit 2, a flow rate on-off valve 11 and a bubble generating medium 5 are provided.
The bubble generating medium 5 is configured to have a spindle shape with a downstream tip portion having a conical shape, and an internal space 5a is provided therein. The bubble generating medium 5 is partly or entirely formed of a composite of graphite and nonmetal. Since the other structure of the bubble generation medium 5 is the same structure as 1st embodiment, description is abbreviate | omitted.

The bubble generating medium 5 is formed so that water flows along the surface portion 5c. At least a part of the surface portion 5c is arranged so as to be orthogonal to the direction in which water flows. In the present embodiment, the bubble generating medium 5 is provided so that the longitudinal direction thereof is parallel to the flow of water in the water supply unit 2. Thereby, the surface portion 5c on the side surface of the bubble generating medium 5 is arranged so as to be orthogonal to the direction in which water flows.

The discharge of water containing ultrafine bubbles using the shower 1 configured in this manner will be described.

The upstream end of the water supply unit 2 is connected to a faucet or the like. When water is supplied to the water supply unit 2 from a faucet or the like, the flow rate on / off valve 11 is opened when the flow rate exceeds a predetermined flow rate. When the flow rate on / off valve 11 is opened, the gas decompressed by the pressure adjusting device 22 is discharged from the high-pressure vessel 21 to the air supply passage 6.

The gas that has passed through the air supply passage 6 flows into the internal space 5 a of the bubble generating medium 5. As shown in FIG. 4, the gas flowing into the internal space 5a of the bubble generating medium 5 passes through fine holes 5b having a diameter of several μm to several tens of μm and is discharged as ultrafine bubbles from the surface portion 5c. Further, since at least a part of the surface portion 5c is arranged so as to be orthogonal to the direction in which water flows through the water supply portion 2, the ultrafine bubbles are separated from the bubble generating medium 5 by the water flow in the surface portion 5c. Further, it is possible to prevent the superfine bubbles that are continuously generated from coalescing into large bubbles. The ultrafine bubbles that are separated from the surface portion 5 c of the bubble generating medium 5 are discharged into the water supplied to the water supply unit 2. Water containing ultrafine bubbles is supplied from the water supply unit 2 through the water supply pipe 3 to the discharge unit 4 and is discharged from the water spray holes 4 a of the discharge unit 4.

By comprising in this way, since the flow volume on-off valve 11 and the bubble generation medium 5 can be stored in the water supply part 2, an ultrafine bubble can be generated only by replacing with the existing water supply part, A water supply passage and a discharge part can be used.

In addition, with this configuration, even when the water pressure in the water supply unit 2 is low, ultrafine bubbles can be generated by flowing water along the surface portion 5c of the bubble generating medium 5. . In the present embodiment, even if the water pressure is 0.1 MPa, if there is a water flow having a flow velocity of 10 cm / s or more around the surface portion 5c, the ultrafine bubbles are separated from the bubble generating medium 5 by the water flow in the surface portion 5c. Therefore, ultrafine bubbles can be generated.

As described above, the shower 1 that supplies water containing ultrafine bubbles (the ultrafine bubble generator for bathroom) includes a water supply unit 2 that supplies water and a water supply pipe 3 that is connected to the downstream side of the water supply unit 2. (Water supply passage), a discharge part 4 connected to the downstream side of the water supply pipe 3 and having a plurality of water spray holes 4a, and a part or all of which is a composite of graphite and nonmetal, and generates bubbles. A medium 5, an air supply passage 6 through which a gas sent into the bubble generating medium 5 passes, and an air supply means 7 provided on the upstream side of the air supply passage 6 for sending the gas into the bubble generating medium 5. The part 2 is provided with a flow rate on / off valve 11 (valve) for opening and closing the air supply passage 6, and when the water flows from the water supply unit 2, the flow rate on / off valve 11 is opened.
With this configuration, a large amount of ultrafine bubbles are simultaneously generated from the porous bubble generating medium 5 at the same time, so that a large amount of uniform-sized ultrafine bubbles can be generated. In addition, since the ultrafine bubbles are generated only when the flow rate exceeds a predetermined amount, the gas can be mixed into the water as ultrafine bubbles without waste.

The air supply means 7 includes a high-pressure vessel 21 and a pressure adjusting device 22, and the flow rate on / off valve 11 is opened when the flow rate of the water exceeds a predetermined amount.
By configuring in this way, ultrafine bubbles are generated only when the flow rate is equal to or higher than a predetermined amount without performing electrical control, so that the gas can be mixed into the water as ultrafine bubbles without waste.

The bubble generating medium 5 has a surface portion 5c for generating ultrafine bubbles, and at least a part of the surface portion 5c is arranged so as to be orthogonal to the direction in which water flows.
With such a configuration, by separating the ultrafine bubbles from the bubble generating medium 5 by the water flow, it is possible to prevent the bubbles from coalescing and becoming large, and to generate a large amount of uniform-sized ultrafine bubbles. .

In the present embodiment, the high-pressure vessel 21 and the pressure adjusting device 22 are used as the air supply means. However, the present invention is not limited to this. For example, a compressor may be used as the air supply means. It is. Moreover, it is also possible to use gas generators, such as an ozone generator, as an air supply means.

Further, the flow rate on-off valve is used as the valve, but the present invention is not limited to this. For example, a pressure on-off valve that is opened when the pressure of the surrounding water exceeds a predetermined value may be used as the valve. Is possible. In this case, when the discharge unit 4 can switch water discharge / stop, the water pressure is applied around the pressure regulating valve only when the discharge unit 4 is discharging water. By configuring in this way, when the shower is not used, the pressure regulating valve is closed, and wasteful generation of gas can be suppressed.

Further, a control device that electrically senses that the discharge unit 4 has been stopped is provided, and the control device is configured to close the pressure regulating valve when the discharge unit 4 is stopped. It is also possible.

Further, in the present embodiment, the bubble generation medium 5 is configured to have a spindle shape, but is not limited thereto, and is configured to have, for example, a cylindrical shape, a cone shape, or a plate shape. You can also

Further, when the flow rate opening / closing valve 11 and the bubble generating medium 5 are provided inside the water supply unit 2, a connection unit that connects to a faucet (not shown) is provided in the water supply unit 2, and is connected to the connection unit and the water supply pipe. It is also possible to provide a switching valve that can be switched between the downstream end portion. By comprising in this way, the water containing an ultrafine bubble can be discharged from a faucet or a shower head by switching a switching valve.

Next, as a third embodiment of the bathroom ultrafine bubble generator, a bathtub water supply system 101 that generates ultrafine bubbles in the bathtub 102 will be described with reference to FIGS. 5 and 6.
As shown in FIG. 5, the bathtub water supply system 101 includes a bathtub 102, a pump 103, a boiler 104, an additional cooking circulation line 105, and a hot water supply line 106.

The bathtub 102 is a water tank for filling hot water, and a circulation adapter 102a serving as a discharge part and a suction part is provided on a side surface thereof.
The pump 103 is a device for circulating hot water stretched in the bathtub 102. The pump 103 is disposed in the additional cooking circulation line 105.
The boiler 104 is a device for heating circulating hot water. The boiler 104 is disposed in the additional cooking circulation line 105.

The additional cooking circulation line 105 includes a circulation forward line 105 a constituting a water supply passage for supplying hot water from the boiler 104 to the bathtub 102, and a circulation return line 105 b for discharging hot water from the bathtub 102 to the boiler 104.

A pump 103 is disposed in the middle of the circulation forward line 105a, and a boiler 104 is disposed between the circulation forward line 105a and the circulation return line 105b. Further, a water supply unit 110 is provided on the downstream side of the circulation forward line 105a. The downstream end of the circulation forward line 105 a and the upstream end of the circulation return line 105 b are connected to the bathtub 102, and a circulation adapter 102 a is connected to the connection portion with the bathtub 102.
The water supply part 110 is formed in a cylindrical shape, and is disposed in the middle part on the downstream side of the circulation forward line 105a.
A flow rate opening / closing valve 111 that is a valve is provided inside the water supply unit 110. The flow rate opening / closing valve 111 is a valve that opens and closes the first air supply passage 126, and is configured to be opened when water flowing through the water supply unit 110 exceeds a predetermined flow rate.

The hot water supply line 106 is a line that takes in tap water and supplies hot water into the bathtub 102, and is provided with a shut-off valve 120. The downstream end of the hot water supply line 106 is connected to the circulation forward line 105a. The hot water supply line 106 is connected to the boiler 104. Tap water supplied to the boiler 104 from a water tap (not shown) is heated and supplied to the hot water supply line 106.

In the bathtub water supply system 101 having these configurations, when water is newly supplied to the bathtub 102, tap water heated by the boiler 104 is supplied from the hot water supply line 106 to the circulation forward line 105a, and from the circulation adapter 102a to the bathtub 102. The water is supplied to the bathtub 102 by flowing in. In addition, when reheating for maintaining the hot water stretched in the bathtub 102 at a predetermined water level or a predetermined temperature is performed, the hot water in the hot-watered bathtub 102 is circulated from the bathtub 102 through the circulation adapter 102a by the pump 103. Inhalation into the return line 105b. Hot water that has passed through the circulation return line 105 b is reheated by being heated by the boiler 104. Further, the hot water heated in the boiler 104 is circulated via the circulation forward line 105a and again flows into the bathtub 102 from the circulation adapter 102a.

A bubble generating medium 125 is provided inside the circulation forward line 105a. As shown in FIGS. 5 and 6, the bubble generating medium 125 is configured to have a spindle shape with a downstream tip portion having a conical shape, and an internal space 125 a is provided therein. The bubble generating medium 125 is partly or entirely formed of a composite of graphite and nonmetal. The bubble generating medium 125 is formed of a porous composite having innumerable fine holes 125b. The bubble generating medium 125 is formed of a complex in which the solid tissue has a molecular structure based on ionic bonds. The bubble generating medium 125 is a conductor, and the bubbles generated from the bubble generating medium 125 are charged with a negative charge.
The innumerable fine holes 125b are distributed throughout the bubble generating medium 125, and the diameter of the holes is several μm to several tens μm. The internal space 125a and the surface portion 125c of the bubble generating medium 125 communicate with each other through the hole 125b.

The bubble generating medium 125 is formed so that water flows along the surface portion 125c. At least a part of the surface portion 125c is disposed so as to be orthogonal to the direction in which water flows. In the present embodiment, the bubble generating medium 125 is provided so that the longitudinal direction thereof is parallel to the flow of water in the circulation forward line 105a. Thereby, the surface portion 125c on the side surface of the bubble generating medium 125 is arranged so as to be orthogonal to the direction in which water flows.

Further, the upstream end of the internal space 125 a of the bubble generating medium 125 is connected to the first air supply passage 126. The first air supply passage 126 is a passage that connects the first air supply means 127 and the bubble generating medium 125. The downstream end of the first air supply passage 126 is connected to the upstream end of the internal space 125 a of the bubble generating medium 125.

The first air feeding means 127 is a device for sending gas to the bubble generating medium 125, and includes a high-pressure vessel 131 and a pressure adjusting device 132.
The high-pressure vessel 131 is a vessel that is stored in a compressed state. The gas is composed of, for example, carbon dioxide, oxygen, hydrogen, nitrogen, ozone, or air. The pressure in the high-pressure vessel 131 is 10 to 20 MPa at the time of filling.
The pressure adjusting device 132 is a device that adjusts the pressure when the gas in the high-pressure vessel 131 is discharged, and reduces the pressure of the gas discharged from the high-pressure vessel 131 to 0.1 to 0.3 MPa. To the air supply passage 126. The gas pressure adjusted by the pressure adjusting device 132 is configured to be greater than the water pressure by 0.05 MPa or more. By comprising in this way, gas can be discharged in water as an ultrafine bubble.

Also, the first air supply means 127 is connected to a second air supply passage 141 for mixing a gas in which aroma oil is vaporized. The second air supply passage 141 is a passage in the first air supply means 127 that connects the second air supply means 142 and the upstream portion of the pressure adjustment device 132. The downstream end of the second air supply passage 141 is a passage in the first air supply means 127 and is connected to the upstream portion of the pressure adjusting device 132. By comprising in this way, since aroma oil is mixed in the high pressure gas before pressure adjustment, a larger amount of aroma oil is mixed in gas.

The second air supply means 142 is a device for mixing the gas in which the aroma oil is vaporized into the gas in the first air supply passage 126, and adjusts the flow rate of the storage container 145 and the gas in which the aroma oil is vaporized. And an on-off valve 146. The on-off valve 146 is constituted by a check valve. When the on-off valve 146 is in a closed state, a portion upstream of the on-off valve is configured to be detachable. By comprising in this way, it becomes possible to change the kind of aroma oil by replacing the storage container 145.
The storage container 145 is a container in which aroma oil is stored. Aroma oil is composed of, for example, volatile oil obtained by extracting active ingredients of plants such as herbs.

A method of generating ultrafine bubbles in the bathtub 102 using the bathtub water supply system 101 configured as described above will be described.

When water is newly supplied to the bathtub 102, tap water heated by the boiler 104 is supplied from the hot water supply line 106 to the circulation forward line 105a. When reheating is performed, the hot water in the bath 102 filled with hot water is sucked into the circulation return line 105b by the pump 103, heated in the boiler 104, and then circulated through the circulation forward line 105a. In this way, hot water flows into the circulation forward line 105a both when supplying water and when performing additional cooking.

When water is supplied to the circulation going line 105a, water is supplied to the water supply unit 110 disposed in the middle of the circulation going line 105a.
Further, when water is supplied to the water supply unit 110, the flow rate on-off valve 111 is opened when the flow rate exceeds a predetermined flow rate. When the flow rate on / off valve 111 is opened, the gas decompressed by the pressure adjusting device 132 is discharged from the high pressure vessel 131 to the first air supply passage 126.

The gas in the high-pressure vessel 131 is adjusted in pressure by the pressure adjusting device 132, and the gas decompressed to 0.1 to 0.3 MPa is sent to the first air supply passage 126. The gas sent to the first air supply passage 126 is supplied to the internal space 125a of the bubble generation medium 125, and ultrafine bubbles are mixed from the bubble generation medium 125 into the circulation forward line 105a.

When the gas in which the aroma oil is vaporized is mixed into the gas in the first air supply passage 126, the on-off valve 146 constituting the second air supply means 142 is opened. Thereby, the gas which the aroma oil in the storage container 145 vaporized is mixed with the high pressure gas which is a channel | path in the 1st air supply means 127, and flows in the upstream part rather than the pressure regulator 132.
The gas supplied to the bubble generating medium 125 is a gas in which the aroma oil in the storage container 145 is mixed with the gas stored in the high-pressure container 131.

As shown in FIGS. 5 and 6, at least a part of the surface portion 125c of the bubble generating medium 125 is disposed in parallel with the direction in which the hot water flows through the circulation forward line 105a. With this configuration, the ultrafine bubbles are separated from the bubble generating medium 125 by the water flow on the surface portion 125c. Therefore, it is possible to prevent the continuously generated ultrafine bubbles from being combined into a large bubble. The ultrafine bubbles that are separated from the surface portion 125c of the bubble generating medium 125 are released into the water supplied to the circulation forward line 105a. Water containing ultrafine bubbles is supplied from the circulation forward line 105a to the bathtub 102 via the circulation adapter 102a.

With this configuration, water in which ultrafine bubbles containing an aroma oil component are mixed can be supplied to the bathtub 102.

As described above, the water supply system 101 for a bathtub that supplies water containing ultrafine bubbles (the ultrafine bubble generator for a bathroom) includes a water supply unit 110 that supplies water, and a circulation line connected to the water supply unit 110. 105a (water supply passage), a circulation adapter 102a (discharge unit) connected to the circulation forward line 105a, and a water supply unit 110 or a downstream side of the water supply unit 110, part or all of which is a composite of graphite and nonmetal A bubble generating medium 125 that is a body and is porous, a first air supply passage 126 through which a gas sent into the bubble generation medium 125 passes, and an upstream side of the first air supply passage 126 are provided to generate bubbles. A first air supply means 127 for sending gas into the medium 125, a flow rate opening / closing valve 111 (valve) for opening and closing the first air supply passage 126 is provided in the water supply unit 110, and water is supplied to the water supply unit 110. When it flows , The flow-off valve 111 in the open state.
With this configuration, a large amount of ultrafine bubbles are simultaneously generated from the porous bubble generating medium 125 at a time, so that a large amount of uniform-sized ultrafine bubbles can be generated. In addition, since the ultrafine bubbles are generated only when the flow rate exceeds a predetermined amount, the gas can be mixed into the water as ultrafine bubbles without waste.

Further, a second air supply passage 141 connected to the first air supply means 127 upstream of the first air supply passage 126 and an upstream side of the second air supply passage 141 are provided, and the second air supply passage is provided. And a second air supply means 142 for sending gas to the passage 141.
By comprising in this way, the ultrafine bubble which mixed several types of gas component can be mixed in water as needed.

The second air supply means 142 includes a storage container 145 (container) for storing volatile aroma oil and an on-off valve 146.
By comprising in this way, the water which mixed the ultrafine bubble containing an aroma oil component into the bathtub 102 can be supplied.

The bubble generation medium 125 has a surface portion 125c that generates ultrafine bubbles, and at least a part of the surface portion 125c is arranged to be orthogonal to the direction in which water flows.
With this configuration, by separating the ultrafine bubbles from the bubble generating medium 125 by a water flow, it is possible to prevent the bubbles from coalescing and becoming large and to generate a large amount of uniform-sized ultrafine bubbles. .

Next, as a fourth embodiment of the bathroom ultrafine bubble generator, a bathtub water supply system 201 that generates ultrafine bubbles in the bathtub 202 will be described with reference to FIGS.
The bathtub water supply system 201 includes a bathtub 202, a pump 203, a boiler 204, an additional cooking circulation line 205, a hot water supply line 206, and an ultrafine bubble supply line 207.

The bathtub 202 is a water tank for filling hot water, and a circulation adapter 202a that also serves as a discharge part and a suction part and an adapter for supplying ultrafine bubbles 202b are provided on the side surfaces thereof.
The pump 203 is a device for circulating hot water stretched in the bathtub 202. The pump 203 is disposed in the additional cooking circulation line 205.
The boiler 204 is a device for heating circulating hot water. The boiler 204 is disposed in the additional cooking circulation line 205.

The additional cooking circulation line 205 includes a circulation forward line 205 a constituting a water supply passage for supplying hot water from the boiler 204 to the bathtub 202, and a circulation return line 205 b for discharging hot water from the bathtub 202 to the boiler 204.

A pump 203 is arranged in the middle of the circulation going line 205a, and a boiler 204 is arranged between the circulation going line 205a and the circulation returning line 205b. The downstream end of the circulation forward line 205 a and the upstream end of the circulation return line 205 b are connected to the bathtub 202, and a circulation adapter 202 a is connected to a connection portion with the bathtub 202.

The hot water supply line 206 is a line that takes in tap water and supplies hot water into the bathtub 202, and is provided with a shut-off valve 220. The downstream end of the hot water supply line 206 is connected to the circulation forward line 205a. The hot water supply line 206 is connected to the boiler 204. Tap water supplied to the boiler 204 from a water tap (not shown) is heated and supplied to the hot water supply line 206.

In the bathtub water supply system 201 having these configurations, when water is newly supplied to the bathtub 202, tap water heated by the boiler 204 is supplied from the hot water supply line 206 to the circulation forward line 205a, and from the circulation adapter 202a to the bathtub 202. The water is supplied to the bathtub 202 by flowing into the tub 202. In addition, when performing reheating to keep the hot water stretched in the bathtub 202 at a predetermined water level or a predetermined temperature, the hot water in the hot-watered bathtub 202 is circulated from the bathtub 202 through the circulation adapter 202a by the pump 203. Inhalation into the return line 205b. Hot water that has passed through the circulation return line 205 b is reheated by being heated by the boiler 204. Further, the hot water heated in the boiler 204 is circulated via the circulation forward line 205a and again flows into the bathtub 202 from the circulation adapter 202a.

The ultrafine bubble supply line 207 is a line provided separately from the additional cooking circulation line 205, and a pump 210 and a bubble generation medium 225 are provided in the middle of the ultrafine bubble supply line 207.
The pump 210 is a device for circulating hot water stretched in the bathtub 202. The pump 210 is disposed in the ultrafine bubble supply line 207.
A medium arrangement part 207 a for arranging the bubble generating medium 225 is formed in the middle part of the ultrafine bubble supply line 207. The medium arrangement unit 207a is a part corresponding to the water supply unit that supplies water provided in the first to third embodiments.

The medium arrangement unit 207a is arranged above the other ultrafine bubble supply line 207. For example, as shown in FIG. 8A, the medium forming portion 207a is arranged upward by bending a tube forming the ultrafine bubble supply line 207. Further, as shown in FIG. 8C, the medium forming portion 207a is arranged upward by inclining the tube forming the ultrafine bubble supply line 207.

A bubble generating medium 225 is provided in the medium placement unit 207a. As shown in FIGS. 8 and 9, the bubble generation medium 225 is configured to have a spindle shape with a downstream tip portion having a conical shape, and an internal space 225 a is provided therein. The bubble generating medium 225 is partially or entirely formed of a composite of graphite and nonmetal. The bubble generating medium 225 is formed of a porous composite having innumerable fine holes 225b. The bubble generating medium 225 is formed of a complex whose solid structure has a molecular structure by ionic bonds. The bubble generation medium 225 is a conductor, and the bubbles generated from the bubble generation medium 225 are charged with a negative charge.
The innumerable fine holes 225b are distributed throughout the bubble generating medium 225, and the diameter of the holes is several μm to several tens μm. The internal space 225a and the surface portion 225c of the bubble generating medium 225 communicate with each other through the hole 225b.

The bubble generating medium 225 is formed so that water flows along the surface portion 225c. The upstream end of the internal space 225 a of the bubble generating medium 225 is connected to the first air supply passage 226. The first air supply passage 226 is a passage connecting the first air supply means 227 and the bubble generating medium 225. The downstream end of the first air supply passage 226 is connected to the upstream end of the internal space 225 a of the bubble generating medium 225.

The first air supply means 227 is a device for sending gas to the bubble generating medium 225 and includes a high-pressure vessel 231 and a pressure adjusting device 232.
The high-pressure vessel 231 is a vessel that is stored in a compressed state. The gas is composed of, for example, carbon dioxide, oxygen, hydrogen, nitrogen, ozone, or air. The pressure in the high-pressure vessel 231 is 10 to 20 MPa at the time of filling.
The pressure adjusting device 232 is a device that adjusts the pressure when the gas in the high-pressure vessel 231 is discharged. The pressure adjusting device 232 reduces the pressure of the gas discharged from the high-pressure vessel 231 to 0.1 to 0.3 MPa. To the air passage 226. The gas pressure adjusted by the pressure adjusting device 232 is configured to be greater than the water pressure by 0.05 MPa or more. By comprising in this way, gas can be discharged in water as an ultrafine bubble.

Also, the first air supply means 227 is connected to a second air supply passage 241 for mixing a gas in which aroma oil is vaporized. The second air supply passage 241 is a passage in the second air supply means 242 and a passage in the first air supply means 227 that connects the upstream portion of the pressure adjustment device 232. A downstream end portion of the second air supply passage 241 is a passage in the first air supply means 227 and is connected to an upstream portion of the pressure adjusting device 232. By comprising in this way, since aroma oil is mixed in the high pressure gas before pressure adjustment, a larger amount of aroma oil is mixed in gas.

The second air supply means 242 is a device for mixing the gas in which the aroma oil is vaporized into the gas in the first air supply passage 226. The 2nd air supply means 242 has the storage container 245 and the on-off valve 246 for adjusting the flow volume of the gas which the aroma oil vaporized. The on-off valve 246 is constituted by a check valve. When the on-off valve 246 is in a closed state, a portion upstream of the on-off valve is configured to be detachable. By comprising in this way, it becomes possible to change the kind of aroma oil by replacing the storage container 245.
The storage container 245 is a container in which aroma oil is stored. Aroma oil is composed of, for example, volatile oil obtained by extracting active ingredients of plants such as herbs.

A method for generating ultrafine bubbles in the bathtub 202 using the bathtub water supply system 201 configured as described above will be described.

When water is supplied to the ultrafine bubble supply line 207, water is supplied to the medium placement unit 207a. In addition, the gas decompressed by the pressure adjusting device 232 from the high-pressure vessel 231 is discharged to the first air supply passage 226.

The gas in the high-pressure vessel 231 is adjusted in pressure by the pressure adjusting device 232, and the gas decompressed to 0.1 to 0.3 MPa is sent to the first air supply passage 226. The gas sent to the first air supply passage 226 is supplied to the internal space 225a of the bubble generation medium 225, and ultrafine bubbles are mixed from the bubble generation medium 225 into the water filled in the medium arrangement portion 207a.

When the gas in which the aroma oil is vaporized is mixed into the gas in the first air supply passage 226, the on-off valve 246 constituting the second air supply means 242 is opened. Thereby, the gas which the aroma oil in the storage container 245 vaporized is mixed with the high-pressure gas which is a channel | path in the 1st air supply means 227, and flows in the upstream part rather than the pressure regulator 232.
The gas supplied to the bubble generating medium 225 is a gas in which the aroma oil in the storage container 245 is mixed with the gas stored in the high-pressure container 231.

As shown in FIG. 9, at least a part of the surface portion 225 c of the bubble generating medium 225 is arranged in parallel with the direction in which the hot water flows through the ultrafine bubble supply line 207. By configuring in this manner, the ultrafine bubbles are separated from the bubble generating medium 225 by the water flow at the surface portion 225c, so that the continuously generated ultrafine bubbles are prevented from being combined into a large bubble. it can. The ultrafine bubbles that are separated from the surface portion 225c of the bubble generation medium 225 are released into the water supplied to the medium arrangement portion 207a. Water containing ultrafine bubbles is supplied to the bathtub 202 from the medium placement unit 207a via the ultrafine bubble supply adapter 202b.

With this configuration, water in which ultrafine bubbles containing an aroma oil component are mixed can be supplied to the bathtub 202.

When water is not supplied to the ultrafine bubble supply line 207, a part of the gas decompressed by the pressure adjusting device 232 from the high-pressure vessel 231 is discharged to the medium placement unit 207a. As shown in FIGS. 8B and 8D, the medium placement unit 207a is located higher than the other ultrafine bubble supply line 207, so that the water surface is pushed down by the discharged gas, and the medium The placement unit 207a is filled with gas. As a result, when the water is flowing through the medium arrangement portion 207a, the bubble generation medium 225 that generates ultrafine bubbles from the bubble generation medium 225 in the water is arranged in the gas. It is possible to prevent the liquid from entering and backflowing.

The configuration of the first air supply passage 226 is not limited to this embodiment, and may be a configuration including an accumulator in the middle, for example. In this case, when water is not supplied to the ultrafine bubble supply line 207, the gas stored in the accumulator is discharged to the medium placement unit 207a.

As described above, the water supply system 201 for a bathtub that supplies water containing ultrafine bubbles (a superfine bubble generator for a bathroom) is connected to a medium arrangement unit 207a that is a water supply unit that supplies water and the medium arrangement unit 207a. Provided in the ultrafine bubble supply line 207 (water supply passage), the ultrafine bubble supply adapter 202b (discharge unit) connected to the ultrafine bubble supply line 207, and the medium arrangement portion 207a, part or all of which are provided. A bubble generating medium 225 that is a composite of graphite and nonmetal and is porous, a first air supply passage 226 through which a gas sent into the bubble generation medium 225 passes, and upstream of the first air supply passage 226 1 and a first air supply means 227 for sending gas into the bubble generation medium 225. When water flows into the medium arrangement portion 207a, ultrafine bubbles are generated in the water from the bubble generation medium 225. To.
With this configuration, a large amount of ultrafine bubbles are generated simultaneously from the porous bubble generating medium 225, so that a large amount of uniform-sized ultrafine bubbles can be generated. In addition, since the ultrafine bubbles are generated only when the flow rate exceeds a predetermined amount, the gas can be mixed into the water as ultrafine bubbles without waste.

Further, a second air supply passage 241 connected to the middle portion of the first air supply means 227 and a second air supply passage 241 are provided on the upstream side of the second air supply passage 241 to send gas to the second air supply passage 241. And a second air supply means 242.
By comprising in this way, the ultrafine bubble which mixed several types of gas component can be mixed in water as needed.

The second air supply means 242 includes a storage container 145 (container) for storing volatile aroma oil and an on-off valve 246.
By comprising in this way, the water which mixed the ultrafine bubble containing an aroma oil component can be supplied to the bathtub 202. FIG.

The bubble generation medium 225 has a surface portion 225c that generates ultrafine bubbles, and at least a part of the surface portion 225c is arranged to be orthogonal to the direction in which water flows.
With this configuration, by separating the ultrafine bubbles from the bubble generation medium 225 by a water flow, it is possible to prevent the bubbles from coalescing and becoming large, and to generate a large amount of uniform-sized ultrafine bubbles. .

The present invention can be used in the technology of an ultrafine bubble generator for a bathroom, and can be used for a shower or a water supply system for a bathtub, which is an example of an ultrafine bubble generator for a bathroom.

1 Shower (Ultra-fine bubble generator for bathroom)
2 Air supply section 3 Water supply pipe (water supply passage)
DESCRIPTION OF SYMBOLS 4 Discharge part 4a Sprinkling hole 5 Bubble generating medium 5a Internal space 5b Hole 5c Surface part 6 Air supply path 7 Air supply means 11 Flow rate on-off valve (valve)
21 High pressure vessel 22 Pressure regulator

Claims (5)

1. An ultra-fine bubble generator for bathroom that supplies water containing ultra-fine bubbles having a diameter of less than 100 μm at room temperature and normal pressure,
   A water supply section for supplying water;
   A water supply passage connected to the water supply unit;
   A discharge unit connected to the water supply passage;
   A bubble generating medium provided on the downstream side of the water supply unit or the water supply unit, part or all of which is a composite of graphite and nonmetal and is porous;
   An air supply passage through which a gas sent into the bubble generating medium passes;
   An air supply means provided on the upstream side of the air supply passage, and for sending gas into the bubble generating medium;
   An ultrafine bubble generator for a bathroom, which generates ultrafine bubbles in water from the bubble generation medium when water flows through the water supply unit.
2. The water supply unit is provided with a valve for opening and closing the air supply passage,
   The apparatus for generating ultrafine bubbles for a bathroom according to claim 1, wherein when the water flows into the water supply section, the valve is opened.
3. A second air supply passage connected to the air supply passage;
   The ultrafine for bathroom according to claim 1, further comprising: a second air supply unit that is provided on the upstream side of the second air supply passage and sends gas to the second air supply passage. Bubble generator.
4. The apparatus for generating ultrafine bubbles for a bathroom according to claim 3, wherein the second air supply means has a container for storing volatile aroma oil and an on-off valve.
5. The bubble generating medium has a surface portion for generating ultrafine bubbles,
   It forms so that water may flow along the said surface part, The ultra-fine bubble generator for bathrooms as described in any one of Claim 1 to 4 characterized by the above-mentioned.

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