CN109382013B - Micro-bubble water generator - Google Patents
Micro-bubble water generator Download PDFInfo
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- CN109382013B CN109382013B CN201711010426.5A CN201711010426A CN109382013B CN 109382013 B CN109382013 B CN 109382013B CN 201711010426 A CN201711010426 A CN 201711010426A CN 109382013 B CN109382013 B CN 109382013B
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- water
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- water passage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
- E03C1/084—Jet regulators with aerating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
- B01F25/72—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/0404—Constructional or functional features of the spout
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—Treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C2201/00—Details, devices or methods not otherwise provided for
- E03C2201/40—Arrangement of water treatment devices in domestic plumbing installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/50—Hydropower in dwellings
Abstract
The invention provides a micro-bubble water generator which can be directly connected with a water supply pipe of tap water and can be easily installed on household appliances such as shower heads, washing machines and the like. In the micro-bubble water generator (1A), the 1 st cylindrical section (4) of the body case (10) is connected to the water supply side end of the shower hose (2), and the 2 nd cylindrical section (5) is connected to the water intake side end of the shower head (3). A water intake sheet (7) having a plurality of water intake holes (11) formed therein is fitted into the 1 st cylindrical portion (4), a nozzle is disposed downstream of the water intake sheet (7), a 1 st water passage (8 a) having a diameter gradually decreasing in the flow direction of tap water flowing through the water intake sheet (7), and a 2 nd water passage (8 b) communicating with the outlet side of the 1 st water passage (8 a) and having a diameter gradually increasing in the flow direction of tap water. The central axis of the water intake hole (11) from the inlet side to the outlet side is inclined with respect to the central axis of the water intake sheet (7).
Description
Technical Field
The present invention relates to a micro-bubble water generator for containing micro-bubbles in water, and more particularly, to a micro-bubble water generator which is used in general households and can be easily installed in equipment or facilities using household tap water.
Background
The fine bubbles are micro bubbles and nano bubbles (having a diameter of about 50 to 500 nm) having a diameter of about 100 μm or less, and the fine bubbles smaller than pores can effectively remove dirt in pores and sweat glands, and dirt entering gaps between fibrous tissues, and the like, and are rapidly used particularly in the fields of beauty and health in recent years.
Also, a cleaning effect by an electrical action of the fine bubbles is also attracting attention. The surface of the fine bubbles is generally negatively charged, and the bubbles are not joined to each other but diffused/floated in the fine bubble water. In contrast, dirt caused by oil, sebum, fine foreign matter, and the like is generally positively charged and electrically bonds to the object to be cleaned, which is negatively charged. Therefore, the negatively charged fine bubbles are electrically neutralized when adsorbed by the positively charged contaminants, and the contaminants are easily separated from the object to be cleaned.
The contaminants separated from the objects to be cleaned after being electrically neutralized float on the water surface by the buoyancy of the bubbles in a state of being adsorbed on the gas-liquid interface of the fine bubbles, and thus the contaminants removed from the objects to be cleaned are not attached to the objects to be cleaned again in the fine bubble water and are cleaned.
In order to generate water containing a large amount of such fine bubbles, a high-speed shearing method, a pressure crushing method, an air-cavitation method, and the like are known, but many of them are suction methods and the like, and air is sucked from the outside. Or, it may be injected forcibly. As one of them, a fine bubble generating device is known in which a mixed fluid of a liquid accelerated by an acceleration member and a gas (bubbles having a diameter of about several millimeters) introduced into a housing by a gas-liquid mixing member is cavitated in the housing to generate fine bubbles (for example, see patent document 1).
Further, as a method of generating fine bubbles by cavitation from so-called dissolved air dissolved in water without sucking air from the outside, there is known a fine bubble generating apparatus having a 1 st nozzle on a water passage inlet side in which a cross-sectional area orthogonal to a central axis thereof gradually decreases from an inlet toward an outlet, a 2 nd nozzle on a water passage outlet side continuously disposed via a communication passage provided continuously from the outlet of the 1 st nozzle and gradually increasing a cross-sectional area orthogonal to the central axis thereof from the inlet toward the outlet, and a gap or a side chamber opened only in the communication passage (for example, see patent document 2).
A shower head is known as a technique that is effective for use in beauty and health, as a system for generating fine bubbles from dissolved air in water by cavitation (see, for example, patent document 3).
Similarly, as a technique for applying a microbubble generator of a type generating microbubbles by cavitation from dissolved air to a washing machine, a washing machine having a fluid jet device for jetting microbubbles to laundry in a spin basket is known (for example, see patent document 4).
Patent document
Japanese patent application laid-open No. 2007-21343 in patent document 1
Japanese patent application laid-open No. 2016-2196 to patent document 3
Japanese patent laid-open publication No. 2016-209331 of patent document 4
Disclosure of Invention
Problems to be solved by the invention
However, the microbubble generator disclosed in patent document 1 is not suitable for domestic use in which a simple design is desired, such as a direct-flow type, because the gas-liquid mixing of water stored in a water tank is accelerated, and the device is increased in size.
Further, in the microbubble generator of patent document 2, since the water flow rapidly expanded by the communication path including the side chamber is throttled by the 2 nd nozzle and reduced in pressure, a sufficient amount of water may not be supplied during use. Therefore, the width of the side chamber in the axial flow direction must be adjusted in accordance with the state of the water passage pressure at that time, and the side chamber cannot be easily attached to a shower in a home bathroom.
In view of the above problems, an object of the present invention is to provide a micro-bubble water generator that can be easily mounted in an existing shower head, washing machine, or other appliance using tap water.
In order to solve the above problems, the present invention provides a microbubble water generator that is attached to an appliance using tap water introduced through a dedicated hose, the microbubble water generator including: a body case connectable between a water supply side end portion of the dedicated hose and a water intake side end portion of the appliance, a water intake sheet disposed in a flow path of tap water in the body case and having a plurality of water intake holes formed therein, and a nozzle disposed downstream of the water intake sheet in the body case, wherein the nozzle includes a 1 st water passage and a 2 nd water passage, a diameter of the 1 st water passage gradually decreases in a flow direction of tap water flowing through the water intake sheet, and the 2 nd water passage communicates with an outlet side of the 1 st water passage and gradually increases in a flow direction of tap water.
In this case, the central axis of the water-intake hole from the inlet side toward the outlet side is inclined with respect to the central axis of the water-intake sheet. Further, the water intake holes may be provided in a circular shape at equal intervals.
The term "appliance" in the present invention mainly means various water-using appliances and devices including showerheads, washing machines, dish washers, and the like, which are widely used at home.
The diameter of the maximum diameter portion of each of the 1 st water passage and the 2 nd water passage is set to be larger than the diameter of the maximum diameter portion of the 1 st water passage; since the length of each of the 1 st water passage and the 2 nd water passage in the flow direction of the tap water is set so that the length of the 2 nd water passage in the flow direction of the tap water is large, the tap water is abruptly throttled in the 1 st water passage and is discharged at a high pressure to the 2 nd water passage, and therefore a large pressure difference is generated, and cavitation bubbles are efficiently generated.
Further, since the thickness dimension of the water intake sheet is at least 1/4 of the diameter dimension, the tap water flows out to the 1 st water passage with a good momentum, a swirling flow with a high rotation rate can be formed in the 1 st water passage, and a plurality of fine bubbles can be efficiently generated. At this time, the water intake holes are formed to be curved from the inlet side toward the outlet side, and the tap water is twisted in the water intake holes, and is introduced into the 1 st water passage in a swirling flow having a higher rotation rate.
Further, when the concave-convex surface for generating turbulence is formed on the inner surface of the water intake hole, the turbulence is increased when the tap water passes through the water intake hole, and the dissolved air in the tap water is easily taken out, so that cavitation bubbles can be effectively generated.
In one embodiment, a male screw to be screwed with a female screw formed on an inner periphery of the water supply side end portion of the dedicated hose is formed on an outer periphery of a connection side end portion of the body case to be connected to the dedicated hose. In this case, the end portion of the body case on the connection side with the dedicated hose can be appropriately connected to the dedicated hose through the 1 st adapter, thereby improving versatility; the 1 st adapter has a male screw formed on an outer periphery of one end thereof to be screwed with the female screw of the dedicated hose, and has a female screw formed on an inner periphery of the other end thereof to be screwed with the male screw of the end portion of the body case on the connection side with the dedicated hose.
In another embodiment, a connection side end portion of the body case connected to the water intake side end portion of the instrument has an inner periphery formed with a female screw to be screwed with a male screw formed on an outer periphery of the water intake side end portion of the instrument. In this case, the end of the body case on the connection side with the appliance can be appropriately connected to the appliance via the 2 nd adapter, thereby improving versatility; the 2 nd adapter has a female screw formed on an inner periphery of one end thereof to be screwed with the male screw of the tool, and a male screw formed on an outer periphery of the other end thereof to be screwed with the female screw on a connection side of the body case to be connected with the tool.
Further, in one embodiment, an opening adjusting mechanism for changing an opening area is provided in each of the water intake holes. In this case, the opening adjustment mechanism is preferably an iris-type throttle mechanism formed by overlapping a plurality of throttle blades.
Effects of the invention
According to the microbubble water generator of the present invention, since the tap water obliquely discharged from the water intake holes of the water intake fins advances downstream while swirling along the inner wall of the 1 st water passage at a high flow rate, and is diffused in the 2 nd water passage and discharged to the appliance, the microbubbles derived from the cavitation are efficiently generated from the dissolved air in the tap water under the normal tap water pressure. In the microbubble water generator of the present invention, the dedicated hoses for the appliances are connected to each other, so that the existing appliances can be easily used as microbubble water-using appliances.
Drawings
Fig. 1 is a perspective view showing an external appearance of a micro-bubble water generator according to embodiment 1 of the present invention.
Fig. 2 is a side sectional view showing the micro-bubble water generator of fig. 1.
FIG. 3 is a plan view and a side view showing a water-sampling sheet.
Fig. 4 is an explanatory view showing the attachment of the micro-bubble water generator shown in fig. 1 to a shower head.
Fig. 5 is an explanatory view showing the attachment of the micro-bubble water generator adapter to the shower head.
Fig. 6 is a schematic diagram illustrating generation of cavitation bubbles in the nozzle portion.
Fig. 7 is an external perspective view showing the micro-bubble water generator according to embodiment 2 of the present invention.
FIG. 8 is a side sectional view showing the micro-bubble water generator of FIG. 7.
Fig. 9 is an explanatory view showing the attachment of the micro-bubble water generator shown in fig. 7 to a washing machine.
FIG. 10 is a perspective view showing the external appearance of a water intake sheet having an opening adjustment mechanism capable of changing the opening area in a water intake hole.
Fig. 11 is a schematic diagram illustrating a change in the opening area of the inlet of the water intake hole adjusted by the opening adjustment mechanism.
FIG. 12 is a side view showing a water intake sheet in which water intake holes are formed in a curved shape.
Detailed Description
The appliances (devices, appliances) for domestic use to which the micro-bubble water generator according to the present invention is attached and to which tap water is supplied are typically a washing machine, a shower head, and the like.
An embodiment in which the micro-bubble water generator according to the present invention is mounted to a shower head will be described with reference to the drawings. Fig. 1 is a perspective view showing an external appearance of a micro-bubble water generator 1A for a shower head according to the present invention, and fig. 1 (a) and (b) are perspective views showing the external appearance of the micro-bubble water generator 1A seen from an upstream side and a downstream side in a flow direction of tap water, respectively.
Fig. 2 shows a side sectional view of the micro-bubble water generator 1, and the micro-bubble water generator 1A is configured by disposing a cylindrical nozzle 6 in a cylindrical main body case 10. The main body case 10 is composed of a 1 st cylindrical portion 4 and a 2 nd cylindrical portion 5 having different diameters in cross section, an outer diameter dimension of the nozzle 6 is substantially equal to an inner diameter dimension of the 1 st cylindrical portion 4, and the nozzle 6 is fitted into the 1 st cylindrical portion 4 and supported in the main body case 10. Tap water is supplied from the 1 st cylindrical portion 4 and flows through the nozzle 6 to the 2 nd cylindrical portion 5.
The circular water intake sheet 7 is fitted into the 1 st cylindrical portion 4 and is disposed in the flow path of tap water in the main body case 10. The water-fetching sheet 7 has a diameter dimension d of 13.5mm and a thickness dimension t of 5mm, but a specific dimension ratio of the diameter dimension d and the thickness dimension t will be described later. An annular rubber packing 12 is fitted into the outer periphery of the 1 st cylindrical portion 4.
The water intake sheet 7 has 4 water intake holes 11, which are circular holes penetrating in the axial direction, on a plane at equal intervals as shown in fig. 3 (a), and the water intake holes 11 are provided so that the central axis from the inlet side of tap water to the outlet side is inclined with respect to the central axis of the water intake sheet 7 as shown in the side view of fig. 3 (b). Therefore, each water-taking hole 11 is formed in the shape of an oblique cylinder in the water-taking sheet 7. In fig. 3 (b), only 1 water intake hole 11 is representatively shown.
The outer diameter of the nozzle 6 is substantially equal to the inner diameter of the 1 st cylindrical portion 4, and a part of the nozzle 6 is held in the main body case 10 in a state of being inserted into the 1 st cylindrical portion 4. The nozzle 6 is provided with a water passage portion 8 having a shape reduced from both left and right ends toward the center. That is, the water passage portion 8 has a structure in which a neck portion 9 having the smallest cross-sectional diameter is formed at the center portion thereof, and the diameter thereof is formed in a substantially conical shape so as to increase as it extends from the neck portion 9 to the left and right. Therefore, the water passage portion 8 is composed of a 1 st water passage 8a whose diameter is gradually reduced in the running water flowing direction, and a 2 nd water passage 8b which is provided in communication with the outlet side of the 1 st water passage 8a and whose diameter is gradually increased in the running water flowing direction. The diameter of the nozzle 6 on the inlet side of the 1 st water passage 8a is set larger than the diameter of the outlet side of the 2 nd water passage 8b, and the dimensions of the 1 st water passage 8a and the 2 nd water passage 8b in the axial direction are set longer than the 2 nd water passage 8b.
Fig. 4 shows the attachment of the micro-bubble water generator 1A to the shower head 3. The 1 st cylindrical part 4 has a male screw 4a formed on the outer periphery thereof for connection with the shower hose 2, and the 2 nd cylindrical part 5 having a larger diameter has a female screw 5a formed on the inner periphery thereof for connection with the shower head 3.
The shower hose 2 is a flexible hose for exclusive use, and has a water supply side end connected to a mixing plug 12 for mixing and supplying water and hot water, and a water discharge side end for connection to the shower head 3. The shower hose 2 and the shower head 3 are connected to each other by fitting the water intake side end portion of the shower head 3 into the connection portion 2A of the shower hose 2 and screwing the female screw 2A formed on the inner periphery of the connection portion 2A to the male screw 3a formed on the outer periphery of the water intake side end portion. In addition, the shower hose 2 may be directly connected to a tap of tap water and only cold water may be supplied from the shower head 3, and in this case, the tap may be directly connected to a waterway pipe or may be connected to an apartment house via a booster pump or an overhead water tank.
When the micro-bubble water generator 1 is attached to the shower head 3, the shower hose 2 is separated from the shower head 3, the male screw 4a of the 1 st cylindrical portion 4 is screwed to the female screw 2A of the connection portion 2A of the shower hose 2, the female screw 5a of the 2 nd cylindrical portion 5 is screwed to the male screw 3a of the shower head 3, and the micro-bubble water generator 1 is disposed and fixed between the shower hose 2 and the shower head 3.
The shower hose 2 and the shower head 3 are separable, but normally handled as one product in a connected state, and therefore, the outer diameter of the connection part 2A of the shower hose 2 and the inner diameter of the base part of the shower head 3 are different depending on the product type or the manufacturer. Therefore, when the shower hose 2 and the shower head 3 are separated and the micro-bubble water generator 1 is mounted therebetween, in the case where the sizes of the specifications do not match, as shown in fig. 5, it is appropriate to use a 1 st adapter 14 and a 2 nd adapter 15, in which the 1 st adapter 14 has a male screw 14a formed on the outer periphery of one end thereof and screwed to the female screw 2A of the connection portion 2A of the shower hose 2, and has a female screw 14b formed on the inner periphery of the other end thereof and screwed to the male screw 4a of the 1 st cylindrical portion 4; the 2 nd adapter 15 has a female screw 15a formed on the inner periphery of one end thereof to be screwed with the male screw 3a of the shower head 3, and a male screw 15b formed on the outer periphery of the other end thereof to be screwed with the female screw 5a of the 2 nd cylindrical portion 5.
The operation of the microbubble water generation in the microbubble water generator 1A configured as described above will be described. The tap water supplied from the mixing plug 12 to the micro-bubble water generator 1 first passes through the water intake holes 11 of the water intake sheet 7, but the tap water passes through the oblique cylindrical water intake holes 11, and is deviated from the central axis direction of the water intake sheet 7 and flows out obliquely.
Thus, the tap water passing through the water intake hole 11 obliquely collides with the inner wall of the 1 st water passage 8a, and advances toward the neck 9 while spirally swirling as schematically shown in fig. 6. Since the 1 st water passage 8a has a constricted structure, the speed increases as the neck 9 approaches, and the water is discharged from the neck 9 to the 2 nd water passage 8b.
The tap water having the increased speed is discharged from the neck 9 at a high pressure and diffused into the 2 nd water passage 8b. This causes a sharp pressure drop, and countless fine cavitation bubbles are generated in the tap water in the 2 nd water passage 8b by the boiling phenomenon and are ejected to the outside through the shower head 3. At this time, if the diameter of the 1 st water passage 8a of the nozzle 6 on the inlet side is larger than the diameter of the 2 nd water passage 8b on the outlet side, and the 1 st water passage 8a is shorter in the axial direction than the 2 nd water passage 8b, the tap water is discharged at high pressure due to the sharp constriction, and therefore a large pressure difference is generated, and cavitation bubbles are efficiently generated.
Thus, when the fine bubble water generated by the nozzle 6 and discharged from the shower head 3 is used for showering, the fine bubbles remove sebum dirt penetrating into pores, and have effects of activating hair roots and beautifying skin.
An embodiment of a household washing machine to which the present invention is applied will be described below with reference to the drawings. Fig. 7 is a perspective view showing an external appearance of a micro-bubble water generator 1B for a washing machine according to the present invention, fig. 8 is a side sectional view, and in fig. 8, the same reference numerals are given to the same components as those shown in fig. 2 (embodiment 1). That is, the nozzle 6 is a water intake sheet 7 having a water intake hole 7 formed therein in an inclined cylindrical shape, a 1 st water passage 8a whose diameter gradually decreases in the flow direction of tap water indicated by an arrow in fig. 7 with a neck 9 interposed therebetween, and a 2 nd water passage 8b whose diameter gradually increases in the flow direction of tap water. The micro-bubble water generator 1B according to embodiment 2 is the same as that of embodiment 1, except for the matters not specifically described below.
The micro-bubble water generator 1B includes a main body casing 20 having a 1 st cylinder part 21 and a 2 nd cylinder part 22, and an intermediate part 23 of a curved side portion in which the nozzle 6 is arranged is provided between the 1 st cylinder part 21 and the 2 nd cylinder part 22. Therefore, the 2 nd cylindrical portion 22 is constituted by a bottomed cylindrical body having a through hole 25 in the center thereof, the diameter of which is equal to the diameter of the outlet side of the 2 nd water passage 8b of the nozzle 6. Also, a rubber gasket 24 is installed on the bottom surface, and the rubber gasket 24 serves to secure water tightness and prevent looseness when connected to a water supply mouth 27 of the washing machine 26.
Fig. 9 shows the attachment of the micro-bubble water generator 1B to the washing machine 26. The 1 st cylindrical part 21 has a male screw 21a formed on an outer periphery thereof for connection to a water feed hose 24, and the 2 nd cylindrical part 5 having a larger diameter has a female screw 22a formed on an inner periphery thereof for connection to a washing machine 26.
The inlet side of the water supply hose 24 is connected to a tap 25 for tap water, and the outlet side is a hose dedicated to the washing machine and connected to a water supply port 27 of the washing machine 26. The faucet 25 is connected to a waterway pipe directly or via a booster pump or an overhead water tank in an apartment house, and supplies tap water.
The water supply mouth 27 of the washing machine 26 is formed of a cylindrical body formed by protruding from the bottom surface of the water supply part recessed from the body surface of the washing machine 26, and a male screw 27a is formed on the outer periphery. Therefore, the water supply hose 24 is normally connected to the washing machine 26 with its water outlet side end screwed to the male screw 27a, and when the micro-bubble water generator 1B is attached to the washing machine 26, the water outlet side end of the water supply hose 24 is connected to the 1 st cylinder part 21 instead of the water supply port 27. The 2 nd cylindrical portion 22 is fitted over the water supply port 27 and screwed to the male screw 27a, whereby the micro-bubble water generator 1B is mounted on the washing machine 26.
When the apparatus is attached to a washing machine, if the water supply hose 24 and the water supply port 27 cannot be connected to the micro-bubble water generator 1B due to an inappropriate standard size, the 1 st and 2 nd adapters 14 and 15 described with reference to fig. 5 are used.
The microbubble water generator 1B configured as described above also functions in the same manner as the microbubble water generator 1B to generate microbubble water, which is supplied to the washing machine 26. That is, the tap water supplied from the faucet 25 to the micro-bubble water generator 1 is first introduced into the 1 st cylinder part 21 and passes through the water intake holes 11 of the water intake sheet 7, while the tap water passes through the oblique cylindrical water intake holes 9 and flows out in an oblique direction away from the central axis direction of the water intake sheet 8. Then, the water collides obliquely with the inner wall of the 1 st water passage 10a having a constricted structure, and as described with reference to fig. 6, the water advances toward the neck portion 11 at an increased speed while spirally swirling, is discharged at a high pressure to the 2 nd water passage 10b, and spreads in the 2 nd water passage 10 b. Therefore, a sharp pressure drop occurs, and countless fine cavitation bubbles are generated in the tap water in the 2 nd water passage 10b by the boiling phenomenon, and supplied to the washing machine 26.
In the washing tank of the washing machine 26 into which the fine bubble water is injected, the surfaces of the fine bubbles are negatively charged, and therefore the bubbles are not united with each other but diffused/floated in the fine bubble water. On the other hand, since dirt formed by sebum, fine foreign matter, and the like adhering to fibers immersed in fine-bubble water in the washing tank for washing is positively charged, the fine bubbles are adsorbed to the dirt and electrically neutralized. The contaminants separated from the fibers by the electrical neutralization float on the water surface by the buoyancy of the bubbles while being adsorbed on the gas-liquid interface of the fine bubbles, and the contaminants removed from the fibers are not attached to the fibers again in the fine bubble water, thereby performing washing.
Therefore, washing with fine bubble water can be effectively performed without using a detergent, and is most suitable for people who are allergic to detergents. More effectively, although the detergent may be injected into the fine bubble water, a small amount of detergent may be injected as compared with the case of normal water.
Although the microbubble water generator according to the present invention has been described above with reference to 2 embodiments, since the shape of the water intake hole 11 of the water intake sheet 7 is formed in the shape of an oblique cylinder in which the central axis of the water intake sheet 7 from the inlet side toward the outlet side is inclined with respect to the central axis, tap water passes through the 1 st water passage 8a while swirling, the speed of discharge from the neck 9 into the 2 nd water passage 10b is faster than in the case where the water intake hole 11 is formed in a right cylinder along the central axis of the water intake sheet 7, and fine cavitation bubbles can be generated in the tap water.
When the swirling flow is generated in the 1 st water passage 8a, the more effective the swirling flow having a high rotation rate is generated, the more fine bubbles can be generated in the tap water. Therefore, in order to generate an effective swirling flow having a high rotation rate, the water intake sheet 7 having a thickness is used to sufficiently secure the axial length of the water intake hole 11. In this case, as a reference of the thickness, as shown in fig. 3, when the thickness dimension of the water-catching sheet 7 is t and the diameter dimension thereof is d, it is preferable to set the ratio (t/d) to 1/4 or more. In this example, the diameter d is 13.5mm, for which the thickness t is set to 5mm.
By setting the thickness t of the water intake sheet to be at least 1/4 of the diameter d, the tap water can flow out with a good force by increasing the distance of the central axis in the depth direction of the water intake hole 11, and a swirling flow with a high rotation rate is formed in the 1 st water passage 8a, thereby efficiently generating a plurality of fine bubbles.
According to the microbubble water generators 1A, 1B of the present invention, the microbubbles can be efficiently generated from the air pockets by using the air contained in the tap water supplied to the general household. In the case of a direct connection of a waterway, the lower limit of the general tap water pressure is 1.5kgf/cm 2 ～3kgf/cm 2 (0.15 to 0.3 MPa), the air contained in the tap water supplied to the general household can be cavitated at the nozzle portion 22 by the pressure of the tap water alone, and the tap water can contain the micronized air bubbles. The tap water pressure in this case is preferably 2.0 to 4.0kgf/cm 2 (0.2 to 0.39 MPa).
In another embodiment shown in fig. 10, each of the water intake holes 7 is provided with a variable orifice 28 as an opening adjustment mechanism so that the water intake capacity to the micro-bubble water generators 1A and 1B can be changed in accordance with the pressure and flow rate of the supplied tap water. The variable orifice 28 is provided with an iris type orifice mechanism, and is an orifice configured to be able to change the opening area of the water intake hole 7. The iris type throttle mechanism is generally known as a diaphragm of a camera lens, and as shown in fig. 11 (a) to (c), for example, a plurality of metal pieces 30 having a substantially circular overlapping central opening 29 are rotated by driving a gear (not shown) to change the area of the opening 14 to 4 states. In this case, the gears of the variable orifices 28 are driven simultaneously by rotating a hole diameter adjustment dial provided outside the main body housing, and the opening areas of the water intake holes 11 can be adjusted to the same size at the same time.
By providing such a variable orifice 28, when the feed pressure of the city water is low, the feed pressure can be increased by reducing the opening area of the water intake hole 11 and introduced into the nozzle 6, and the feed pressure of the city water to the nozzle 6 can be adjusted to be constant.
Further, by forming the water intake hole 11 with the uneven surface 11a on the inner wall surface of the hole as shown in fig. 12a, the tap water is ejected from the water intake hole 11 while increasing the turbulence. In this example, a plurality of projections are provided to form the uneven surface 11a. Thus, the turbulence is increased, and the dissolved air in the tap water can be easily taken out, and cavitation bubbles can be efficiently generated in the nozzle 4.
Further, as shown in fig. 12b, the water intake hole 11 may have a twisted shape in which a curved portion is provided on a diagonal cylinder extending from the inlet side to the outlet side. This can twist the flow of the tap water passing through the water intake hole 11, and can generate a swirling flow having a high rotation rate in the 1 st water passage 8 a. This further increases the turbulence level by interacting with the uneven surface 11a of the inner wall of the water intake hole 11, and the effect of generating cavitation bubbles in the nozzle 11 can be increased.
The present invention is not limited to the above-described embodiments, and various modifications can be made in accordance with the gist of the present invention. For example, the maximum number of the water intake holes 11 may be about 20 according to the flow rate of the pipe or the like of the installed tap water. Therefore, when the number of water intake holes 11 is large, it is preferable that the water intake holes are arranged uniformly on the plane of the water intake sheet 7 rather than being arranged at regular intervals in a circular shape.
In the water passage portion 8, the diameter of the inlet side of the 1 st water passage 8a is made larger than the diameter of the outlet side of the 2 nd water passage 8b in the above embodiment, and the distance in the central axis direction is made longer for the 2 nd water passage 8b, but the neck portion 9 may be formed in a shape having the same diameter and being centrosymmetric. In short, the relationship between the pressure of the tap water discharged from the 1 st water passage 8a and the pressure of the 2 nd water passage 8b decreased by the diffusion is set so that cavitation bubbles of high quality can be generated in an appropriate amount and as fine bubbles.
In order to generate fine bubbles more efficiently, a plurality of nozzles 6 may be arranged in series in such a manner that the 2 nd water passage 8b of the first-stage nozzle 6 is connected to the 1 st water passage 8a of the second-stage nozzle 6, and cavitation may be repeatedly generated.
Description of the reference numerals
1A micro-bubble water generator
1B micro-bubble water generator
2. Special hose (shower hose)
3. Shower nozzle (household appliance)
4. 1 st cylindrical part
4a male thread
5. 2 nd cylindrical part
5a female thread
7. Water-fetching sheet
8a 1 st water passage
10. Body case
11. Water taking hole
14. 1 st adapter
15. 2 nd adapter
21. 1 st Cylinder part
21a male thread
22. 2 nd cylindrical part
22a female thread
23. Body shell
24. Special purpose flexible pipe (Water supply flexible pipe)
26. Washing machine (household appliance)
28. Opening adjusting mechanism
30. Throttle blade
Claims (8)
1. A micro-bubble water generator for pulverizing and pulverizing bubbles contained in tap water and supplying the tap water containing the pulverized and pulverized bubbles to an appliance through a dedicated hose, the micro-bubble water generator comprising:
a body case connectable between a water supply side end portion from the dedicated hose and a water intake side end portion toward the appliance,
a water intake sheet disposed in the flow path of tap water in the body case and provided with a plurality of water intake holes circularly perforated at equal intervals, and
a nozzle disposed downstream of the water-collecting sheet in the main body case,
a plurality of water taking holes which penetrate through the water taking sheet,
is formed in an inclined manner by bending in such a manner that the water intake sheet is twisted from the water inlet side to the water outlet side symmetrically with respect to the center line of the water intake sheet,
a concave-convex surface for generating turbulent flow is formed on the inner surface,
a throttle mechanism is provided in the plurality of water intake holes, the throttle mechanism being capable of adjusting the supply pressure of the tap water toward the nozzle side in accordance with the supply pressure of the tap water so as to change the opening area of the throttle mechanism at the same time,
the nozzle comprises a 1 st water passage and a 2 nd water passage,
the diameter of the 1 st water passage is gradually reduced along the flowing direction of the tap water flowing through the water taking sheet,
the 2 nd water passage is communicated with the outlet side of the 1 st water passage, the diameter of the 2 nd water passage is gradually increased along the flowing direction of tap water,
the length of the 1 st water passage is shorter than that of the 2 nd water passage,
the inclination angle of the 1 st water passage, which is reduced in diameter along the flow direction of the tap water, is larger than the inclination angle of the 2 nd water passage, which is expanded in flow of the tap water.
2. The microbubble water generator according to claim 1, wherein the diameter size of the maximum diameter portion of each of the 1 st water passage and the 2 nd water passage is set so that the diameter size of the maximum diameter portion of the 1 st water passage is larger; the length of each of the 1 st water passage and the 2 nd water passage in the flow direction of tap water is set to be large, and the length of the 2 nd water passage in the flow direction of tap water is set to be large.
3. The micro-bubble water generator according to claim 2, wherein the water intake sheet has a thickness dimension of at least 1/4 of a diameter dimension.
4. The microbubble water generator according to claim 1, wherein a male screw that is screwed with a female screw formed on an inner circumference of the water supply side end portion of the dedicated hose is formed on an outer circumference of a connection side end portion of the body case to which the dedicated hose is connected.
5. The micro-bubble water generator according to claim 4, wherein an end portion of the body casing on a connection side with the dedicated hose is appropriately connected to the dedicated hose via a 1 st adapter; the 1 st adapter has a male screw formed on an outer periphery of one end thereof to be screwed with the female screw of the dedicated hose, and has a female screw formed on an inner periphery of the other end thereof to be screwed with the male screw of the end portion of the body case on the connection side with the dedicated hose.
6. The microbubble water generator according to claim 1, wherein a female screw that is screwed with a male screw formed on an outer periphery of the water intake side end portion of the appliance is formed on an inner periphery of an end portion of the body shell on a connection side that is connected to the water intake side end portion of the appliance.
7. The microbubble water generator according to claim 6, wherein an end of the body casing on a connection side to the appliance is appropriately connected to the appliance through a 2 nd adapter; the 2 nd adapter has a female screw formed on an inner periphery of one end thereof to be screwed with the male screw of the tool, and a male screw formed on an outer periphery of the other end thereof to be screwed with the female screw on a connection side of the body case to be connected with the tool.
8. The microbubble water generator according to claim 1, wherein the throttle means is an iris type throttle means formed by overlapping a plurality of throttle blades.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017149898A JP7012482B2 (en) | 2017-08-02 | 2017-08-02 | Fine bubble water generator |
| JP2017-149898 | 2017-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109382013A CN109382013A (en) | 2019-02-26 |
| CN109382013B true CN109382013B (en) | 2022-10-11 |
Family
ID=65369484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711010426.5A Active CN109382013B (en) | 2017-08-02 | 2017-10-26 | Micro-bubble water generator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7012482B2 (en) |
| KR (1) | KR20190014443A (en) |
| CN (1) | CN109382013B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7314561B2 (en) * | 2019-03-25 | 2023-07-26 | 三菱電機株式会社 | Sterilization device and hot water supply device |
| CN110449274B (en) * | 2019-08-14 | 2023-05-23 | 路达(厦门)工业有限公司 | Water outlet structure capable of generating lantern-shaped water flowers and kitchen and toilet products |
| CN112831986B (en) * | 2019-11-22 | 2023-04-07 | 青岛海尔洗衣机有限公司 | Microbubble treatment agent box assembly and washing equipment with same |
| JP6994549B1 (en) * | 2020-10-13 | 2022-01-14 | 株式会社富士計器 | Shower hose with fine bubble water generator |
| JP7231593B2 (en) * | 2020-10-13 | 2023-03-01 | 株式会社富士計器 | Water supply hose for washing machine with microbubble water generator |
| CN113073714B (en) * | 2021-03-23 | 2022-12-13 | 江门市梦霖卫浴有限公司 | Water-purifying quick-heating water tap |
| JP2022190955A (en) * | 2021-06-15 | 2022-12-27 | 株式会社富士計器 | Washing machine hose and shower hose equipped with fine air bubble water generator |
| JP2023005665A (en) * | 2021-06-29 | 2023-01-18 | 株式会社富士計器 | Fine bubble generator for pipeline root |
| CN113941556A (en) * | 2021-09-17 | 2022-01-18 | 无锡小天鹅电器有限公司 | Bubble generating device, runner assembly and washing device |
| JP7202764B1 (en) | 2022-04-28 | 2023-01-12 | 株式会社富士計器 | water supply unit |
| KR102596925B1 (en) * | 2022-08-18 | 2023-11-01 | 주식회사 알티자동화 | Nano bubble water generator for semiconductor cleaning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007021392A (en) * | 2005-07-19 | 2007-02-01 | Hitachi Ltd | Apparatus and method for producing microbubble |
| JP2010274243A (en) * | 2009-06-01 | 2010-12-09 | Shibaura Mechatronics Corp | Micro bubble generation apparatus and micro bubble generating method |
| CN102639220A (en) * | 2010-12-01 | 2012-08-15 | 株式会社Ｇ.Ｐ.Ｐ. | Bubble generator |
| CN203886075U (en) * | 2014-04-30 | 2014-10-22 | 天广消防股份有限公司 | High-pressure water mist nozzle |
| CN105873669A (en) * | 2013-10-17 | 2016-08-17 | 阿思普株式会社 | Gas-containing liquid production device and gas-containing liquid injection mechanism |
| JP3209280U (en) * | 2016-12-21 | 2017-03-09 | 株式会社富士計器 | Household water treatment equipment |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61155055U (en) * | 1985-03-13 | 1986-09-26 | ||
| JPH06320150A (en) * | 1993-03-17 | 1994-11-22 | Marine Bio Kk | Filter and shower head for hair washing water |
| JPH1133440A (en) * | 1997-07-16 | 1999-02-09 | Tokyo Gas Co Ltd | Shower head |
| JP4438209B2 (en) | 2000-10-04 | 2010-03-24 | Ｔｏｔｏ株式会社 | Shower equipment |
| US7997563B2 (en) * | 2005-01-13 | 2011-08-16 | National University Corporation University Of Tsukuba | Micro-bubble generator, vortex breakdown nozzle for micro-bubble generator, vane swirler for micro-bubble generator, micro-bubble generating method, and micro-bubble applying device |
| JP2007021343A (en) | 2005-07-14 | 2007-02-01 | Kansai Automation Kiki Kk | Microbubble generator |
| JP2009136864A (en) | 2007-11-16 | 2009-06-25 | Nippon Sozai Kk | Microbubble generator |
| CA2675704C (en) | 2009-08-18 | 2010-05-25 | The Procter & Gamble Company | A method of making a fabric softening composition using a dynamic orifice with a valve in different positions |
| JP5627877B2 (en) | 2009-11-18 | 2014-11-19 | サントリーホールディングス株式会社 | Method for producing carbonated beverages |
| JP5970378B2 (en) * | 2010-03-02 | 2016-08-17 | アカル エネルギー リミテッド | Fuel cell |
| JP2014028340A (en) | 2012-07-31 | 2014-02-13 | Institute Of National Colleges Of Technology Japan | Superfine microbubble generation device |
| JP2014147901A (en) | 2013-02-01 | 2014-08-21 | Micro-Bub Kk | Microbubble generator and microbubble generating tube structure |
| JP6199768B2 (en) | 2014-02-20 | 2017-09-20 | ミズタニバルブ工業株式会社 | Bubble generator and bubble generation mechanism |
| JP6358613B2 (en) | 2014-06-16 | 2018-07-18 | 株式会社ｍｉｃｒｏ−ｂｕｂ | Shower head that can provide a shower experience without a watering plate |
| JP2016209331A (en) | 2015-05-11 | 2016-12-15 | 東芝ライフスタイル株式会社 | Washing machine |
| JP6570474B2 (en) | 2016-04-05 | 2019-09-04 | 株式会社ｍｉｃｒｏ−ｂｕｂ | Micro bubble generator for faucet with swing pipe and faucet with swing pipe |
-
2017
- 2017-08-02 JP JP2017149898A patent/JP7012482B2/en active Active
- 2017-10-26 CN CN201711010426.5A patent/CN109382013B/en active Active
- 2017-10-30 KR KR1020170142386A patent/KR20190014443A/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007021392A (en) * | 2005-07-19 | 2007-02-01 | Hitachi Ltd | Apparatus and method for producing microbubble |
| JP2010274243A (en) * | 2009-06-01 | 2010-12-09 | Shibaura Mechatronics Corp | Micro bubble generation apparatus and micro bubble generating method |
| CN102639220A (en) * | 2010-12-01 | 2012-08-15 | 株式会社Ｇ.Ｐ.Ｐ. | Bubble generator |
| CN105873669A (en) * | 2013-10-17 | 2016-08-17 | 阿思普株式会社 | Gas-containing liquid production device and gas-containing liquid injection mechanism |
| CN203886075U (en) * | 2014-04-30 | 2014-10-22 | 天广消防股份有限公司 | High-pressure water mist nozzle |
| JP3209280U (en) * | 2016-12-21 | 2017-03-09 | 株式会社富士計器 | Household water treatment equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190014443A (en) | 2019-02-12 |
| CN109382013A (en) | 2019-02-26 |
| JP2019025451A (en) | 2019-02-21 |
| JP7012482B2 (en) | 2022-01-28 |
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