WO2023188485A1 - 微細気泡発生装置、給湯器、および食器洗浄機 - Google Patents
微細気泡発生装置、給湯器、および食器洗浄機 Download PDFInfo
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- WO2023188485A1 WO2023188485A1 PCT/JP2022/039063 JP2022039063W WO2023188485A1 WO 2023188485 A1 WO2023188485 A1 WO 2023188485A1 JP 2022039063 W JP2022039063 W JP 2022039063W WO 2023188485 A1 WO2023188485 A1 WO 2023188485A1
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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
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2373—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/001—Drain phases, including initial, intermediate or partial draining phases
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
- A47L15/10—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket by introducing compressed air or other gas into the liquid
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
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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
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
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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
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2373—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm
- B01F23/2375—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm for obtaining bubbles with a size below 1 µm
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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
- B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
- B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431972—Mounted on an axial support member, e.g. a rod or bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431974—Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
- B01F25/4323—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa using elements provided with a plurality of channels or using a plurality of tubes which can either be placed between common spaces or collectors
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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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
- B01F25/4335—Mixers with a converging-diverging cross-section
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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
- B01F25/40—Static mixers
- B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
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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
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
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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
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4285—Water-heater arrangements
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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
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/913—Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction
Definitions
- the technology disclosed herein relates to a microbubble generator, a water heater, and a dishwasher.
- Japanese Patent Laid-Open No. 2010-201397 discloses a microbubble generating device that includes a main body case having an inlet and an outflow part, and a first microbubble generator housed in the main body case.
- the first microbubble generating section includes a body extending between the inlet and the outlet, and a Venturi channel communicating between the inlet and the outlet through the interior of the body.
- the Venturi channel includes a diameter-reducing channel whose diameter decreases as it goes from the upstream side to the downstream side, and a diameter-reducing channel that decreases in diameter as it goes from the upstream side to the downstream side.
- An enlarged-diameter flow path whose diameter is enlarged.
- a gap space is provided inside the main body case between an inner surface of the main body case and an outer surface of the body, and is formed between the upstream fitting part and the downstream fitting part.
- an upstream fitting portion and a downstream fitting portion are provided for the purpose of stabilizing the posture of the first microbubble generating portion within the main body case.
- the performance for draining liquid that has entered the gap space may deteriorate.
- a liquid pool may occur in the gap space, and problems may occur (for example, damage to the case due to freezing of the liquid pool).
- This specification provides a technique that can improve the liquid removal performance of the gap space.
- the microbubble generation device disclosed in this specification includes a main body case having an inlet and an outflow part, and a first microbubble generator housed in the main body case.
- the first microbubble generating section includes a body extending between the inlet and the outlet, and a Venturi channel communicating between the inlet and the outlet through the interior of the body. , an upstream fitting part connected to the upstream end of the body part and having an outer surface shaped to approximately fit into the inner surface of the main case when the inside of the main case is viewed from the upstream side; a downstream side fitting part connected to the downstream end of the body part and having an outer surface shaped to approximately fit into the inner surface of the main case when the inside of the main case is viewed from the downstream side. There is.
- the Venturi channel includes a diameter-reducing channel whose diameter decreases as it goes from the upstream side to the downstream side, and a diameter-reducing channel that decreases in diameter as it goes from the upstream side to the downstream side.
- An enlarged-diameter flow path whose diameter is enlarged.
- the liquid in the gap space when draining the microbubble generator so that the liquid in the main body case flows from the inflow part to the outflow part, the liquid in the gap space is drained from one or more liquids. It escapes to the outflow section through the extraction channel. Therefore, the liquid draining performance of the gap space can be improved.
- the liquid draining channel is plural, and includes a first liquid draining channel and a second liquid draining channel.
- the liquid in the gap space flows from multiple locations to the outflow part. It goes away. Therefore, the liquid draining performance of the gap space can be further improved.
- At least one of the one or more liquid drainage channels is connected to the gap space near the bottom of the gap space with the vertical direction facing downward.
- the liquid in the gap flows downward according to gravity. For this reason, especially in the vicinity of the lowest part of the gap space, liquid pools are likely to occur after draining the microbubble generator.
- the at least one liquid draining channel faces vertically downward and connects to the gap space near the lowest part of the gap space. For this reason, it is possible to reliably suppress the formation of a liquid pool in the gap space after draining the microbubble generator.
- the microbubble generator includes a second microbubble generator that is housed in the main body case and that is provided between the first microbubble generator and the outflow part. It also has: The second micro-bubble generating section is provided with a shaft portion extending in a direction from an upstream side to a downstream side, an outer peripheral portion surrounding a radially outer side of the shaft portion, and between the shaft portion and the outer peripheral portion. , a plurality of blade parts that generate a swirling flow flowing in a predetermined swirling direction with respect to the shaft part, and a swirling flow path passing through a gap between the shaft part, the outer peripheral part, and the plurality of blade parts; It is equipped with:
- the second fine bubble generating section is further provided on the downstream side of the first fine bubble generating section. Therefore, the liquid flowing into the inflow section not only passes through the Venturi channel of the first microbubble generation section, but also passes through the swirling channel of the second microbubble generation section. In this case, the microbubbles generated in the first microbubble generation section become finer bubbles due to the shear force caused by the swirling flow generated in the second microbubble generation section, and the amount of microbubbles increases. According to the above configuration, a large amount of microbubbles can be generated.
- the main body case has a substantially cylindrical inner surface extending in a direction from the upstream side to the downstream side.
- the first microbubble generating section is made of resin.
- the body portion has a diameter-reducing outer surface that decreases in diameter from the upstream side toward the downstream side in a portion where the diameter-reducing flow path is provided.
- the body portion has an enlarged-diameter outer surface whose diameter increases from the upstream side toward the downstream side in a portion where the enlarged-diameter flow path is provided.
- the first fine bubble generating section is generally formed by injection molding.
- the thickness of the first microbubble generating section is large, quality defects in the first microbubble generating section are likely to occur.
- the wall thickness of the body can be reduced.
- the quality of the first fine bubble generating section can be improved.
- the volume of the gap space increases, the effect of improving the liquid draining performance of the gap space according to the present invention is more significantly exhibited.
- the first microbubble generating section includes one or more notches formed by cutting out a part of the downstream fitting section from the downstream side toward the upstream side. A notch is provided. The one or more cutouts function as the one or more liquid drainage channels.
- one or more liquid drainage channels can be formed by partially processing the first microbubble generating section. Therefore, one or more liquid drain channels can be easily formed.
- the first microbubble generating section is provided with one or more recesses having a shape recessed inward from the outer surface of the body.
- the one or more recesses are connected to the one or more cutouts.
- the liquid in the gap space is easily guided to the one or more notches by the one or more recesses. That is, the liquid in the gap space is easily guided to one or more liquid drain channels. Therefore, the liquid draining performance of the gap space can be further improved.
- the water heater disclosed in this specification includes the above-mentioned microbubble generator.
- the micro-bubble generating device included in the water heater it is possible to improve the liquid draining performance of the gap space.
- the dishwasher disclosed in this specification includes the above-mentioned microbubble generating device.
- the liquid removal performance of the gap space can be improved in the microbubble generating device included in the dishwasher.
- FIG. 1 is a diagram schematically showing the configuration of a water heater 100 according to Example 1.
- FIG. 1 is an overall perspective view of a microbubble generator 2 according to Examples 1 and 2.
- FIG. 2 is a cross-sectional view of a microbubble generator 2 according to Examples 1 and 2.
- FIG. 2 is an overall perspective view of a first microbubble generating section 3 included in a microbubble generating device 2 according to Examples 1 and 2.
- FIG. FIG. 4 is a cross-sectional view taken along line V-V in FIG. 3.
- FIG. FIG. 4 is a cross-sectional view taken along line VI-VI in FIG. 3.
- FIG. It is a figure which looked at the 2nd fine bubble generation part 5 with which the fine bubble generation device 2 concerning Examples 1 and 2 is provided from the upstream side.
- FIG. 1 is an overall perspective view of a microbubble generator 2 according to Examples 1 and 2.
- FIG. 2 is a cross-sectional view of a microbubble generator 2 according to Examples 1 and 2.
- FIG. 3 is a diagram of a second micro-bubble generating section 5 included in the micro-bubble generating device 2 according to Examples 1 and 2, viewed from a direction perpendicular to the central axis A.
- 2 is a diagram showing an example of installation of the microbubble generator 2 according to Examples 1 and 2.
- FIG. 5 is a diagram schematically showing the configuration of a dishwasher 510 according to Example 2.
- Example 1 Water heater 100 equipped with micro bubble generator 2
- the water heater 100 includes a microbubble generator 2, a water supply pipe 104, a first drain plug 106, a water flow sensor 108, a water flow servo 110, a water heater controller 112, and a heat exchanger. 114, a gas burner 116, a combustion fan 118, a hot water supply pipe 122, a hot water supply thermistor 124, and a second drain plug 126.
- the upstream end of the water supply pipe 104 is connected to a water supply source such as a water supply.
- a water supply source such as a water supply.
- a first drain valve 106 In the middle of the water supply pipe 104, a first drain valve 106, a water flow sensor 108, and a water flow servo 110 are provided in order from the upstream side.
- Water flow sensor 108 detects the flow rate of water flowing through water supply pipe 104 .
- the water amount servo 110 switches between an open state and an open state to permit or prohibit water flow.
- the amount of water flowing through the water amount servo 110 in the open state changes depending on the opening degree of the water amount servo 110.
- air oxygen, carbon dioxide, nitrogen, etc.
- water for example, tap water supplied from a water supply source.
- the upstream end of the heat exchanger 114 is connected to the downstream end of the water supply pipe 104.
- the gas burner 116 heats the water flowing into the heat exchanger 114 by burning the supplied combustion gas.
- the downstream end of the heat exchanger 114 is connected to the upstream end of the hot water supply pipe 122.
- a hot water supply thermistor 124, a micro bubble generator 2, and a second drain plug 126 are provided in order from the upstream side.
- Hot water thermistor 124 detects the temperature of water flowing through hot water pipe 122 .
- the downstream end of the hot water supply pipe 122 is connected to a hot water outlet such as a sink or bathtub.
- the hot water pipe 122 connected to the upstream end of the micro bubble generator 2 will be referred to as the "first hot water pipe 122a”, and the hot water pipe 122 connected to the downstream end of the fine bubble generator 2 will be referred to as the “second hot water pipe 122b”. It is sometimes called.
- the water heater controller 112 includes a CPU, ROM, RAM, etc. Information about the flow rate of water detected by the water flow sensor 108 and the temperature of water detected by the hot water thermistor 124 is transmitted to the water heater controller 112 .
- the water heater controller 112 can adjust the amount of water flowing into the heat exchanger 114 from the water supply pipe 104 by adjusting the opening degree of the water amount servo 110. Further, the water heater controller 112 can adjust the thermal power of the gas burner 116 by adjusting the amount of combustion gas supplied to the gas burner 116.
- the water heater controller 112 adjusts the temperature of the water flowing through the hot water pipe 122 to a desired temperature by controlling the operation of the water flow servo 110 and the gas burner 116 based on information detected by the water flow sensor 108 and the hot water supply thermistor 124. be able to.
- the microbubble generator 2 includes a main body case 10, an inflow section 12, and an outflow section 14.
- the main body case 10 has a substantially cylindrical shape centered on the central axis A.
- the inflow section 12 and the outflow section 14 are each fixed to the main body case 10 with screws.
- a downstream end of a first hot water supply pipe 122a (see FIG. 1) is connected to the inflow portion 12.
- the upstream end of the second hot water supply pipe 122b (see FIG. 1) is connected to the outflow portion 14. Therefore, water flowing from the first hot water supply pipe 122a flows into the inflow part 12, passes through the main body case 10, and flows out from the outflow part 14 to the second hot water supply pipe 122b.
- the main body case 10 houses a first microbubble generator 3 and a plurality of second microbubble generators 5.
- the first fine bubble generating section 3 and the plurality of second fine bubble generating sections 5 are provided along the central axis A.
- the plurality of second fine bubble generating sections 5 are arranged in line on the downstream side of the first fine bubble generating section 3.
- four second microbubble generating units 5 are provided. Note that all of the plurality of second microbubble generating units 5 have the same shape.
- the first microbubble generating section 3 has a substantially rotating body shape centered on the central axis A.
- the first microbubble generating section 3 includes a body section 30, an inner venturi channel 32, a plurality of outer venturi channels 34, an upstream fitting section 36, and a downstream fitting section 38.
- the first microbubble generating section 3 is integrally formed by injection molding using a resin (eg, polypropylene, polyphenylene sulfide, etc.). Therefore, the body portion 30, the upstream fitting portion 36, and the downstream fitting portion 38 are seamlessly formed integrally. As shown in FIG.
- the body portion 30 extends between the inflow portion 12 and the outflow portion 14, and has a reduced-diameter outer surface 302 that decreases in diameter from the upstream side to the downstream side along the central axis A. It is connected to the downstream end of the reduced-diameter outer surface 302, and includes an enlarged-diameter outer surface 304 whose diameter increases from the upstream side toward the downstream side along the central axis A.
- a first recess 306 and a second recess 308 are provided that are recessed from the enlarged diameter outer surface 304 toward the inner side in the radial direction of the central axis A.
- the first recess 306 and the second recess 308 are provided at a depth that does not interfere with the plurality of outer venturi channels 34.
- the first recess 306 and the second recess 308 are arranged at an interval of 180° from each other in the circumferential direction of the central axis A.
- the first recess 306 and the second recess 308 are provided so as to extend from the downstream end of the body 30 toward the upstream side.
- the first recessed portion 306 is connected to a first inclined portion 306a that is inclined so as to approach the central axis A from the upstream side toward the downstream side, and is connected to the first inclined portion 306a. It includes a first bottom portion 306b extending along A.
- the first inclined portion 306a smoothly connects the enlarged diameter outer surface 304 and the first bottom portion 306b.
- the second recessed portion 308 is connected to a second inclined portion 308a that is inclined so as to approach the central axis A from the upstream side toward the downstream side, and a second inclined portion that extends along the central axis A. It has a bottom portion 308b.
- the second inclined portion 308a smoothly connects the enlarged diameter outer surface 304 and the second bottom portion 308b.
- the inner venturi channel 32 and the plurality of outer venturi channels 34 communicate between the inflow section 12 and the outflow section 14 through the interior of the body 30.
- the inner venturi channel 32 extends on the central axis A.
- the plurality of outer venturi channels 34 are arranged to surround the inner venturi channel 32.
- seven outer venturi channels 34 are provided.
- the plurality of outer venturi channels 34 are arranged at predetermined angular intervals (in this embodiment, approximately 51° intervals) in the circumferential direction of the central axis A.
- the inner venturi flow path 32 includes an inner diameter-reduced flow path 322 whose flow path diameter decreases from the upstream side to the downstream side along the central axis A, and an inner diameter-reduced flow path 322 that is downstream of the inner diameter-reduced flow path 322. It is provided with an inner enlarged-diameter flow path 324 whose flow path diameter increases from the upstream side to the downstream side along the central axis A.
- the inner venturi flow path 32 is formed with a plurality of slits 4 recessed from the inner surface of the inner venturi flow path 32 toward the outside in the radial direction of the central axis A.
- two slits 4 are provided.
- the plurality of slits 4 are arranged at predetermined angular intervals (180° intervals in this embodiment) in the circumferential direction of the central axis A. In other words, the plurality of slits 4 are arranged to face each other on the inner surface of the inner venturi channel 32.
- Each of the plurality of slits 4 extends from a first end 42 that corresponds to the downstream end of the inner enlarged diameter flow path 324 to a second end 44 that is located upstream of the downstream end of the inner enlarged diameter flow path 324. are arranged continuously.
- Each of the plurality of slits 4 has a substantially constant width in a direction perpendicular to the recess direction.
- the width of the plurality of slits 4 is, for example, within a range of 0.5 mm to 3.0 mm, and in this embodiment is 1.5 mm. Note that the plurality of slits 4 are provided only in the inner venturi flow path 32 and are not provided in the plurality of outer venturi flow paths 34.
- the second end 44 is located downstream of the downstream end of the inner diameter-reduced flow path 322. In this embodiment, the second end 44 coincides with the upstream end of the inner enlarged diameter channel 324 .
- Each of the plurality of slits 4 has a substantially constant depth in the radial direction of the central axis A. The depth of the plurality of slits 4 is, for example, within the range of 0.5 mm to 3.0 mm, and in this example is 1.8 mm.
- Each of the plurality of slits 4 is provided so as to extend substantially linearly from the first end 42 to the second end 44.
- the downstream end of the inner enlarged diameter flow path 324 has a bell mouth shape. Therefore, in the vicinity of the first end 42 , the peripheral edges of the plurality of slits 4 have a curved shape along the bellmouth shape of the inner enlarged diameter flow path 324 .
- the plurality of outer venturi channels 34 include an outer diameter-reducing channel 342 whose channel diameter decreases from the upstream side toward the downstream side, and an outer diameter-reducing channel 342 provided downstream of the outer diameter-reducing channel 342. It is provided with an outer enlarged-diameter flow path 344 whose flow path diameter increases from the upstream side toward the downstream side.
- the downstream end of the outer enlarged diameter channel 344 has a bell mouth shape. Note that all of the plurality of outer venturi channels 34 have the same shape.
- the upstream fitting portion 36 has a flange shape that extends outward in the radial direction of the central axis A from the upstream end of the body portion 30.
- the upstream fitting portion 36 has an outer surface 36a that extends in the circumferential direction of the central axis A.
- FIG. 6 when the inside of the main body case 10 is viewed from the upstream side, the outer surface 36a of the upstream side fitting part 36 extends over the entire inner surface 10a of the main body case 10. It is almost fitted. Therefore, the outer surface 36a of the upstream fitting portion 36 and the inner surface 10a of the main body case 10 are mechanically sealed.
- the downstream fitting portion 38 protrudes from the downstream end of the body 30 so as to extend outward in the radial direction of the central axis A, and extends from the downstream end of the body 30 along the central axis A. It also extends downstream.
- the downstream fitting portion 38 includes, at its downstream end, an engagement convex portion 382 that partially projects toward the downstream side.
- the first microbubble generating section 3 has a first notch 6 and a second notch 8 that are formed by cutting out a part of the downstream fitting section 38 from the downstream side toward the upstream side. It is provided.
- the first notch 6 smoothly connects with the first recess 306 of the body 30.
- the second notch 8 smoothly connects with the second recess 308 of the body 30.
- the outer surface 38a of the downstream side fitting portion 38 is a portion where the first notch portion 6 and the second notch portion 8 are formed.
- the inner surface 10a of the main body case 10 is substantially fitted over substantially the entire inner surface 10a of the main body case 10, except for.
- the engaging convex portion 382 engages with the positioning member 10b that protrudes inward from the inner surface 10a of the main body case 10 from the upstream side.
- the first micro-bubble generating section 3 is housed in the main body case 10 in a state where it is positioned in the axial direction of the central axis A and in the circumferential direction with respect to the main body case 10.
- the upstream fitting portion 36 and the downstream fitting portion 38 A gap space S is formed between them. Since the outer surface 36a of the upstream fitting portion 36 and the inner surface 10a of the main body case 10 are mechanically sealed, water is prevented from entering and exiting on the upstream side of the gap space S.
- the downstream side of the gap space S there is a first drain passage D1 consisting of the first notch 6 and the first recess 306, and a second drain passage D1 consisting of the second notch 8 and the second recess 308.
- the passage D2 allows water to enter and exit. Therefore, the gap space S communicates with the outflow portion 14 through the first drain channel D1 and the second drain channel D2.
- the second microbubble generating section 5 is provided between the shaft section 52, the outer peripheral section 54 surrounding the shaft section 52, and between the shaft section 52 and the outer peripheral section 54.
- a plurality of vane portions 56 are provided to generate a swirling flow that flows clockwise relative to the portion 52.
- the "clockwise direction” and “counterclockwise direction” described in this specification mean the direction when the fine bubble generator 2 is viewed from the upstream side along the central axis A.
- the second microbubble generating section 5 is integrally formed by injection molding using a resin (for example, polypropylene, polyphenylene sulfide, etc.). Therefore, the shaft portion 52, the outer peripheral portion 54, and the plurality of blade portions 56 are seamlessly formed integrally.
- the shaft portion 52 has a cylindrical shape.
- the outer peripheral portion 54 has a cylindrical shape.
- the outer peripheral portion 54 has an outer surface that approximately fits into the inner surface 10a of the main body case 10. Further, the shaft portion 52 and the outer peripheral portion 54 are provided along the central axis A.
- the plurality of blade portions 56 connect the outer wall of the shaft portion 52 and the inner wall of the outer peripheral portion 54 .
- the plurality of blade portions 56 are inclined toward the downstream side in a clockwise direction. In this embodiment, seven blade portions 56 are provided.
- the plurality of blade portions 56 are arranged at predetermined angular intervals (in this embodiment, approximately 51° intervals) in the circumferential direction of the central axis A.
- the second microbubble generating section 5 is provided with seven swirling channels 64 (bold line portions in FIG. 7). Each of the seven swirling channels 64 is provided in a gap between the shaft portion 52, the outer peripheral portion 54, and the plurality of blade portions 56.
- the outer peripheral portion 54 includes a fitting convex portion 66 that partially projects toward the upstream side at the upstream end.
- the outer peripheral portion 54 includes a fitting recess 68 partially recessed toward the upstream side at the downstream end.
- the fitting protrusion 66 and the fitting recess 68 have shapes that allow them to fit into each other.
- the fitting convex portion 66 of the second fine bubble generating section 5 on the downstream side is the fitting convex portion 66 of the second fine bubble generating section 5 on the upstream side. It fits into the recess 68.
- the plurality of second microbubble generating units 5 are positioned relative to each other.
- the fitting convex portion 66 of the second microbubble generating section 5 on the most upstream side engages with the positioning member 10b (see FIG. 5) of the main body case 10 from the downstream side.
- each of the plurality of second microbubble generating units 5 is housed in the main body case 10 while being positioned in the circumferential direction of the central axis A with respect to the main body case 10.
- the air-dissolved water that has flowed into the main body case 10 from the inflow portion 12 flows into the reduced diameter flow channels 322 and 342 of the Venturi flow channels 32 and 34.
- the air-dissolved water that has flowed into the reduced diameter channels 322 and 342 has a flow rate increased by passing through the reduced diameter channels 322 and 342, and as a result, the pressure is reduced. Air bubbles are generated by reducing the pressure of the air-dissolved water.
- the air-dissolved water that has passed through the reduced diameter channels 322 and 342 flows into the enlarged diameter channels 324 and 344.
- the air-dissolved water that has flowed into the enlarged diameter channels 324, 344 has its flow velocity reduced by passing through the enlarged diameter channels 324, 344, and as a result, its pressure is increased.
- air-dissolved water is pressurized after air bubbles are generated due to reduced pressure, the air bubbles contained in the air-dissolved water are broken up and become fine bubbles.
- the inner venturi flow path 32 and the plurality of outer venturi flow paths 34 may be collectively referred to as “Venturi flow paths 32, 34.”
- the inner reduced diameter flow path 322 and the outer reduced diameter flow path 342 may be collectively referred to as “reduced diameter flow paths 322, 342.”
- the inner expanded diameter flow path 324 and the outer expanded diameter flow path 344 may be collectively referred to as "the expanded diameter flow paths 324, 344.”
- the air-dissolved water flowing out from the inner Venturi flow path 32 collides with the upstream end of the shaft portion 52 of the second microbubble generation section 5 on the most upstream side, and is pushed outward in the radial direction of the central axis A. , flows into the swirl flow path 64.
- the air-dissolved water flowing out from the plurality of outer venturi channels 34 flows into the swirling channel 64 without colliding with the shaft portion 52 .
- the air-dissolved water passes through each of the swirl channels 64 of the plurality of second microbubble generating sections 5 from the upstream side to the downstream side.
- the air-dissolved water flowing through the swirl flow path 64 flows along the blade portions 56, thereby forming a swirl flow that flows in a clockwise direction.
- the microbubbles in the air-dissolved water become even more microbubbles due to the shear force caused by the swirling flow, and the amount of microbubbles increases.
- the air-dissolved water flowing out from the swirling channel 64 of the second microbubble generation section 5 on the most downstream side is guided to the outflow section 14. In this way, in the water heater 100 (see FIG. 1), hot water containing many fine bubbles is supplied to the hot water outlet location.
- the upstream direction along the central axis A is vertically upward, and the downstream direction along the central axis A is vertically downward. It is set up like this. Therefore, when water is drained from the microbubble generator 2, the water in the main body case 10 (water in the gap space S) drains downward according to gravity. In other words, as the water drains out, the water level inside the main body case 10 decreases downstream along the central axis A.
- vertically upward direction may be referred to as "upward”
- vertically downward direction may be referred to as "downward”.
- the first drain passage D1 is connected to the vicinity of the lowest part of the gap space S.
- the second drain passage D2 is also connected to the vicinity of the lowest part of the gap space S. Therefore, when draining the micro bubble generator 2, almost the entire amount of water in the gap space S flows into the first drain channel D1 or the second drain channel D2. .
- "near the lowest part of the gap space S” means the lowest part of the gap space S, where the vertical length from the bottom to the top of the gap space S is L (mm). It means the part located within L/4 (mm) above when viewed from.
- the "near the bottom of the gap space S" in this embodiment is defined as “near the bottom of the gap space S" when viewed from the bottom of the gap space S. This means the part located within 10mm above.
- a water film may form in the enlarged diameter channels 324, 344 of the venturi channels 32, 34 (especially near the downstream ends of the enlarged diameter channels 324, 344). . If the water film in the expanded diameter flow channels 324, 344 freezes without being removed, even if you try to pass water to the micro bubble generator 2 afterwards, the frozen water film will prevent the water from passing, and the water will immediately disappear. Water may not be able to pass through.
- the water film when a water film is formed in the inner expanded diameter flow path 324 of the inner venturi flow path 32, the water film is sucked into the plurality of slits 4 and moves upstream along the inner expanded diameter flow path 324. Move to the side. As shown in FIG. 3, the diameter of the inner enlarged diameter channel 324 decreases as it moves upstream, so the surface area of the water film decreases as it moves upstream. At this time, the water film condenses as the surface area decreases, becomes water droplets, and dissolves. In this way, in the inner venturi flow path 32, the water film that has formed in the inner expanded diameter flow path 324 can be eliminated.
- FIG. 10 is a longitudinal cross-sectional view of the dishwasher 510.
- Dishwasher 510 is a pull-out type dishwasher.
- the dishwasher 510 includes a microbubble generator 2, a main body 512, a washing tank 514, a door 515, and a washing machine controller 560.
- the microbubble generator 2 of this embodiment is the same as the microbubble generator 2 of the first embodiment. Therefore, in this embodiment, explanation regarding the configuration of the microbubble generator 2 will be omitted.
- the door 515 is provided with an operation panel 516 and an exhaust path 518.
- the operation panel 516 is provided with various buttons such as a start button, lamps, and the like.
- the exhaust path 518 reaches from the inside of the cleaning tank 514 to the outside.
- the cleaning tank 514 is housed in a space formed by the main body 512 and the door 515.
- the cleaning tank 514 is slidably supported by the main body 512.
- Cleaning tank 514 is connected to door 515.
- the cleaning tank 514 is formed into a box shape with an open top.
- a lid 556 is arranged above the cleaning tank 514.
- the lid 556 is connected to the cleaning tank 514 by a lifting mechanism (not shown).
- the cleaning nozzle 520 includes a tower nozzle section 523 consisting of an upper nozzle 521 and a lower nozzle 522, and a horizontal nozzle section 524.
- the cleaning nozzle 520 is formed with a plurality of injection ports 521a, 522a, and 524a.
- An electric heater 530 for heating the cleaning water and the air in the cleaning tank 514 is installed near the bottom surface 539 of the cleaning tank 514 .
- a thermistor 555 is attached to the bottom surface 539 of the cleaning tank 514.
- a water level detection unit 545 that detects the water level in the cleaning tank 514 is provided at the lower part of the front outside of the cleaning tank 514.
- the water level when cleaning water is normally supplied to the cleaning tank 514 (hereinafter referred to as "cleaning water level") is indicated by a two-dot chain line 554.
- a pump 527 is provided below the bottom surface 539 of the cleaning tank 514. The pump 527 rotates an impeller 528 using a built-in electric motor.
- a cleaning nozzle 520 is rotatably attached to the bottom surface 539 of the cleaning tank 514. The cleaning nozzle 520 and the first discharge port 511 of the pump 527 are in communication.
- a suction recess 531 is formed at the bottom of the cleaning tank 514.
- the upper opening of the suction recess 531 is covered with a leftover filter 517.
- the water level detection unit 545 and the suction recess 531 are connected by a water level path 550.
- the pump 527 and the suction recess 531 are connected by a first suction channel 532.
- One end of a second suction passage 574 is connected to the first suction passage 532 .
- the other end of the second suction channel 574 is connected to an opening 572 in the rear wall 551 of the cleaning tank 514.
- a flow path switching valve 576 is attached to a connecting portion between the first suction flow path 532 and the second suction flow path 574.
- a drying fan 552 is attached to the outside of the rear wall 551 of the cleaning tank 514.
- the drying fan 552 rotates a fan 553 using a built-in motor.
- the inside of the drying fan 552 and the cleaning tank 514 are communicated through a drying path 563. Drying fan 552 is located higher than wash water level 554.
- a drainage hose 534 is connected to the rear wall 533 of the main body 512.
- the drainage hose 534 and the second discharge port 535 of the pump 527 are communicated through a drainage channel 536.
- the middle of the drainage flow path 536 and the inside of the cleaning tank 514 are communicated by an air vent path 537.
- a drainage check valve 538 is installed near a portion of the drainage channel 536 where it is connected to the drainage hose 534 .
- a water supply hose 540 is connected to a horizontal step formed in the middle of the rear wall 533 of the main body 512.
- the water supply hose 540 may be directly supplied with water from a water supply source (not shown) such as a water supply, or may be supplied with heated hot water.
- a water supply valve 541 is attached to the inside of the rear wall 533.
- the inlet 544 of the water supply valve 541 and the water supply hose 540 are communicated through a first water supply channel 542.
- the outlet 564 of the water supply valve 541 and the inside of the cleaning tank 514 are communicated through a second water supply flow path 543.
- a micro bubble generator 2 is installed in the middle of the second water supply channel 543.
- the washer controller 560 includes a CPU, ROM, RAM, etc., and controls the operation of the dishwasher 510.
- the washing machine controller 560 executes a washing operation for washing the dishes 519 in the washing tank 514 by controlling the operation of the dishwasher 510.
- washing machine controller 560 When the washing machine controller 560 receives a user's operation to start a dishwashing operation on the operation panel 516, the washing machine controller 560 sequentially executes a washing process, a rinsing process, and a drying process.
- the cleaning machine controller 560 opens the water supply valve 541 and supplies cleaning water from the water supply hose 540 to the cleaning tank 514.
- the cleaning machine controller 560 determines that the amount of cleaning water required in the cleaning process has been supplied to the cleaning tank 514, it closes the water supply valve 541.
- the washer controller 560 drives the pump 527, rotates the impeller 528 in the forward direction, and turns on the heater 530.
- Cleaning water is sucked into the pump 527 from the suction recess 531.
- the cleaning water sucked into the pump 527 is sent to the cleaning nozzle 520, and is vigorously jetted out from the injection ports 521a, 522a, and 524a.
- the cleaning machine controller 560 ends the cleaning process when a first predetermined time (for example, 5 minutes) has elapsed since the cleaning process was started. Further, the cleaning machine controller 560 drives the pump 527 and reversely rotates the impeller 528 to drain the cleaning water in the cleaning tank 514.
- the micro bubble generator 2 is attached to the middle of the second water supply channel 543. Air (oxygen, carbon dioxide, nitrogen, etc.) is dissolved in the water supplied from the water supply hose 540. Therefore, the water that passes through the micro-bubble generator 2 and is supplied to the cleaning tank 514 contains many micro-bubbles. Dirt components adhering to the tableware 519 are adsorbed on the surface of microbubbles contained in the wash water. When the cleaning water contains many microbubbles, more dirt components can be adsorbed.
- a first predetermined time for example, 5 minutes
- the washing machine controller 560 opens the water supply valve 541 to supply washing water from the water supply hose 540 to the washing tank 514.
- the cleaning machine controller 560 closes the water supply valve 541.
- the washing machine controller 560 drives the pump 527 and rotates the impeller 528 in the forward direction. As a result, the washing water in the washing tank 514 is sprayed from the washing nozzle 520 onto the tableware 519 housed in the tableware basket 561, and the tableware 519 is rinsed.
- the washing machine controller 560 ends the rinsing process when a second predetermined period of time (for example, 5 minutes) has elapsed since the rinsing process was started. Further, the cleaning machine controller 560 drives the pump 527 and reversely rotates the impeller 528 to drain the cleaning water in the cleaning tank 514.
- a second predetermined period of time for example, 5 minutes
- the washing machine controller 560 heats the air in the washing tank 514 using the heater 530 to dry the tableware 519.
- the washer controller 560 ends the heating by the heater 530 and ends the drying process.
- the microbubble generator 2 includes the second microbubble generator 5 in addition to the first microbubble generator 3 has been described.
- the microbubble generator 2 may include only the first microbubble generator 3 and may not include the second microbubble generator 5.
- the inner surface 10a of the main body case 10 may not have a substantially cylindrical shape.
- the inner surface 10a of the main body case 10 may have a square tube shape.
- the upstream fitting part 36, the downstream fitting part 38, and the outer circumferential part 54 may have the same square cylindrical shape as the inner surface 10a, or may substantially fit into the inner surface 10a. good.
- the body portion 30 includes a reduced-diameter outer surface 302 and an enlarged-diameter outer surface 304.
- the body 30 may have a cylindrical outer surface centered on the central axis A.
- the outer surface of the body section 30 may smoothly connect the outer surface 36a of the upstream fitting section 36 and the outer surface 38a of the downstream fitting section 38, and the inner surface 10a of the main body case 10 may be connected smoothly. It may have a shape that substantially fits into the inner surface 10a over substantially the entirety thereof. In this case, by increasing the wall thickness of the body portion 30, the destruction resistance of the first microbubble generating portion 3 can be improved.
- the first microbubble generating section 3 may be made of metal (for example, aluminum, stainless steel, etc.).
- the first micro-bubble generating section 3 may be formed of a plurality of parts, each of which may be fixed by welding or the like.
- the configuration in which the plurality of slits 4 are provided substantially linearly from the first end 42 to the second end 44 has been described.
- the plurality of slits 4 may be provided in a spiral shape about the central axis A from the first end 42 to the second end 44.
- the second end portions 44 of the plurality of slits 4 are located downstream of the downstream end of the inner diameter-reduced flow path 322 (the second end portion 44 is located at the upstream end of the inner diameter-enlarged flow path 324). matching configuration).
- the second end 44 may extend upstream of the downstream end of the inner reduced diameter channel 322 .
- second end 44 may coincide with the upstream end of inner reduced diameter channel 322 .
- the second end 44 may be located downstream of the upstream end of the inner enlarged diameter channel 324.
- the plurality of slits 4 are provided in the inner venturi flow path 32 and are not provided in the plurality of outer venturi flow paths 34.
- the plurality of slits 4 may not be provided in the inner venturi channel 32 but may be provided in the plurality of outer venturi channels 34.
- the plurality of slits 4 may be provided in at least one of the plurality of outer venturi channels 34.
- the plurality of slits 4 may be provided in both the inner venturi passages 32 and the plurality of outer venturi passages 34.
- both the first notch 6 and the first recess 306 are connected to the first drain channel D1 (or the second drain channel D1).
- the configuration functioning as the flow path D2) has been described.
- one of the first cutout 6 and the first recess 306 may not be provided.
- only the other of the first notch 6 and the first recess 306 is connected to the first drain channel D1 (or the second drain channel D1). It may also function as D2).
- the outer surface of the downstream fitting part 38 A recessed portion having a shape recessed inward from 38a may be provided instead of providing the first notch 6 and the first recess 306 (or the second notch 8 and the second recess 308).
- the recess provided in the downstream fitting part 38 may function as the first drain channel D1 (or the second drain channel D2).
- the first water drainage channel D1 (or the second water drainage channel D2) is formed by cutting out (or recessing) the first microbubble generating section 3. explained.
- the first drain channel D1 (or the second drain channel D2) is formed by recessing the main body case 10 from the inner surface 10a toward the outside in the radial direction of the central axis A. You can leave it there.
- the micro bubble generator 2 is installed so that the upstream direction along the central axis A is vertically upward, and the downstream direction along the central axis A is vertically downward. I explained about the configuration. In other embodiments, the microbubble generator 2 may not be so installed.
- the micro bubble generator 2 is such that the direction toward the upstream side along the central axis A is inclined within an angle range of -90° to 90° with respect to the vertical upward direction, and the direction toward the downstream side along the central axis A. It may be arranged so that the direction is inclined within an angle range of ⁇ 90° to 90° with respect to the vertical downward direction.
- either the first drain channel D1 or the second drain channel D2 may be arranged so as to be connected to the vicinity of the lowest part of the gap space S. Also in this case, when water is drained from the micro bubble generator 2, almost the entire amount of water in the gap space S flows into the first water drain channel D1 or the second water drain channel D2. .
- the numbers of the plurality of second microbubble generating sections 5, the plurality of outer venturi channels 34, the plurality of slits 4, and the plurality of blades 56 may be changed as appropriate. Moreover, although it is described as "a plurality of", it may be one.
- the microbubble generator 2 includes a main body case 10 having an inflow section 12 and an outflow section 14, and a first microbubble generation section 3 housed in the main body case 10.
- the first microbubble generating section 3 includes a body section 30 extending between the inflow section 12 and the outflow section 14, and a Venturi channel that communicates between the inflow section 12 and the outflow section 14 through the inside of the body section 30.
- 32, 34, and an upstream side having an outer surface 36a that is connected to the upstream end of the body 30 and has an outer surface 36a shaped to approximately fit into the inner surface 10a of the main case 10 when the inside of the main case 10 is viewed from the upstream side.
- a side fitting part 38 is provided.
- the Venturi channels 32 and 34 are provided at the downstream side of the reduced diameter channels 322 and 342, the diameter of which decreases from the upstream side toward the downstream side, and from the upstream side to the downstream side. It includes enlarged-diameter channels 324 and 344 whose diameter increases toward the sides.
- the water in the gap space S when draining the micro bubble generator 2 so that the water in the main body case 10 flows from the inflow part 12 to the outflow part 14, the water in the gap space S is The water flows out to the outflow portion 14 through the first drain channel D1 or the second drain channel D2. Therefore, the water drainage performance of the gap space S can be improved.
- the water in the gap space S is It passes from the point to the outflow section 14. Therefore, the water drainage performance of the gap space S can be further improved.
- At least one of the first drain channel D1 and the second drain channel D2 is connected to the vicinity of the lowest part of the gap space S with the vertical direction facing downward.
- the first drain channel D1 and the second drain channel D2 are located in the gap space near the bottom of the gap space S with the vertically downward direction being the downward direction. Connected to S. For this reason, it is possible to reliably suppress the formation of water puddles in the gap space S after draining the water from the microbubble generator 2.
- the microbubble generator 2 is housed in the main body case 10 and includes a second microbubble generator provided between the first microbubble generator 3 and the outflow part 14. 5.
- the second micro-bubble generating section 5 is provided with a shaft section 52 extending in the direction from the upstream side to the downstream side, an outer peripheral section 54 surrounding the radially outer side of the shaft section 52, and between the shaft section 52 and the outer peripheral section 54. between the shaft portion 52, the outer peripheral portion 54, and the plurality of blade portions 56, which generate a swirling flow that flows in a clockwise direction (an example of a predetermined swirling direction) with respect to the shaft portion 52.
- a swirl flow path 64 passing through the gap between the two is provided.
- the second fine bubble generating section 5 is further provided on the downstream side of the first fine bubble generating section 3. Therefore, water flowing into the inflow section 12 not only passes through the venturi channels 32 and 34 of the first microbubble generation section 3 but also passes through the swirling channel 64 of the second microbubble generation section 5. In this case, the microbubbles generated in the first microbubble generation section 3 become more microscopic bubbles due to the shear force caused by the swirling flow generated in the second microbubble generation section 5, and the amount of microbubbles increases. Become. According to the above configuration, a large amount of microbubbles can be generated.
- the main body case 10 has a substantially cylindrical inner surface 10a extending in a direction from the upstream side to the downstream side.
- the first microbubble generating section 3 is made of resin.
- the body portion 30 has a reduced diameter outer surface 302 that reduces in diameter from the upstream side toward the downstream side in a portion where the reduced diameter channels 322 and 342 are provided.
- the body portion 30 has an enlarged-diameter outer surface 304 that increases in diameter from the upstream side toward the downstream side in a portion where the enlarged-diameter channels 324 and 344 are provided.
- the first fine bubble generating section 3 is generally formed by injection molding.
- the wall thickness of the first fine bubble generating section 3 (particularly the body section 30) is large, quality defects of the first fine bubble generating section 3 are likely to occur.
- the wall thickness of the body portion 30 can be reduced. Therefore, when forming the first fine bubble generating section 3 by injection molding, the quality of the first fine bubble generating section 3 can be improved. Furthermore, according to the above configuration, since the volume of the gap space S increases, the effect of improving the liquid draining performance of the gap space S according to the present invention is more significantly exhibited.
- the first microbubble generating section 3 includes a first cutout section 6 formed by cutting out a part of the downstream fitting section 38 from the downstream side toward the upstream side. and a second notch 8 (an example of one or more notches).
- the first notch 6 and the second notch 8 function as a first drain channel D1 and a second drain channel D2.
- the first water drainage channel D1 and the second water drainage channel D2 can be formed. Therefore, the first drain channel D1 and the second drain channel D2 can be easily formed.
- the first microbubble generating section 3 includes a first recess 306 and a second recess 308 (one or more) having a shape recessed inward from the enlarged diameter outer surface 304. example of a recess) is provided.
- the first recess 306 and the second recess 308 are connected to the first notch 6 and the second notch 8.
- water in the gap space S is easily guided to the first notch 6 and the second notch 8 by the first recess 306 and the second recess 308. That is, the water in the gap space S is easily guided to the first drain channel D1 and the second drain channel D2. Therefore, the water drainage performance of the gap space S can be further improved.
- the water heater 100 includes a microbubble generator 2.
- the water draining performance of the gap space S can be improved in the micro bubble generator 2 included in the water heater 100.
- the dishwasher 510 includes a microbubble generator 2.
- the water removal performance of the gap space S can be improved in the micro bubble generator 2 included in the dishwasher 510.
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Abstract
Description
図1に示すように、給湯器100は、微細気泡発生装置2と、給水管104と、第1水抜き栓106と、水量センサ108と、水量サーボ110と、給湯器コントローラ112と、熱交換器114と、ガスバーナ116と、燃焼ファン118と、給湯管122と、給湯サーミスタ124と、第2水抜き栓126を備えている。
図2に示すように、微細気泡発生装置2は、本体ケース10と、流入部12と、流出部14と、を備えている。本体ケース10は、中心軸Aを中心とした略円筒形状を有している。流入部12および流出部14は、それぞれ本体ケース10にネジ止め固定されている。流入部12には、第1給湯管122a(図1参照)の下流端が接続される。流出部14には、第2給湯管122b(図1参照)の上流端が接続される。このため、第1給湯管122aから流入する水は、流入部12に流入し、本体ケース10内を通過して、流出部14から第2給湯管122bへと流出する。
図4に示すように、第1微細気泡生成部3は、中心軸Aを中心とした略回転体形状を有している。第1微細気泡生成部3は、胴部30と、内側ベンチュリ流路32と、複数の外側ベンチュリ流路34と、上流側嵌合部36と、下流側嵌合部38を備えている。本実施例では、第1微細気泡生成部3は、樹脂(例えば、ポリプロピレンやポリフェニレンサルファイドなど)を用いて、射出成形によって一体的に形成されている。このため、胴部30と、上流側嵌合部36と、下流側嵌合部38は、継ぎ目なく一体的に形成されている。図3に示すように、胴部30は、流入部12と流出部14の間に延在しており、中心軸Aに沿って上流側から下流側に向かうにつれて縮径した縮径外側面302と、縮径外側面302の下流端に接続しており、中心軸Aに沿って上流側から下流側に向かうにつれて拡径した拡径外側面304を備えている。
図7に示すように、第2微細気泡生成部5は、軸部52と、軸部52を囲んでいる外周部54と、軸部52と外周部54との間に設けられており、軸部52に対して時計回り方向に流れる旋回流を生成する複数の羽根部56を備えている。なお、本明細書で記載する「時計回り方向」および「反時計回り方向」は、中心軸Aに沿って微細気泡発生装置2を上流側から見たときの方向を意味している。第2微細気泡生成部5は、樹脂(例えば、ポリプロピレンやポリフェニレンサルファイドなど)を用いて、射出成形によって一体的に形成されている。このため、軸部52と、外周部54と、複数の羽根部56は、継ぎ目なく一体的に形成されている。
図1に示すように、給水源から供給される水には空気が溶解しているため、第1給湯管122aを流れる水にも空気が溶解している。このため、微細気泡発生装置2には、第1給湯管122aから空気が溶解した水が流入する。以下では、空気が溶解した水のことを「空気溶解水」と呼ぶことがある。
図1に示すように、第1水抜き栓106および第2水抜き栓126を開状態とすることで、微細気泡発生装置2の水抜きを実行することができる。第1水抜き栓106および第2水抜き栓126を開状態とすると、第1水抜き栓106と第2水抜き栓126の間の水は、重力に従って流れ、第1水抜き栓106または第2水抜き栓126から流出する。この時、微細気泡発生装置2では、水は流入部12から流出部14(図3参照)へと抜けていく。
図10は、食器洗浄機510の縦断面図である。食器洗浄機510は、引き出し式の食器洗浄機である。食器洗浄機510は、微細気泡発生装置2と、本体512と、洗浄槽514と、扉515と、洗浄機コントローラ560と、を備えている。本実施例の微細気泡発生装置2は、実施例1の微細気泡発生装置2と同一である。このため、本実施例では微細気泡発生装置2の構成に係る説明を省略する。
洗浄機コントローラ560は、ユーザによる操作パネル516への食器洗浄運転開始操作を受付けると、洗浄工程、すすぎ工程、乾燥工程を順に実行する。
上記の実施例では、微細気泡発生装置2が、第1微細気泡生成部3に加えて第2微細気泡生成部5を備える構成について説明した。別の実施例では、微細気泡発生装置2は、第1微細気泡生成部3だけを備えていてもよく、第2微細気泡生成部5を備えていなくてもよい。
1つまたはそれ以上の実施形態において、微細気泡発生装置2は、流入部12および流出部14を有する本体ケース10と、本体ケース10に収容される第1微細気泡生成部3と、を備えている。第1微細気泡生成部3は、流入部12と流出部14の間に延在する胴部30と、胴部30の内部を通って流入部12と流出部14の間を連通するベンチュリ流路32、34と、胴部30の上流端に接続するとともに、本体ケース10の内部を上流側から見た時、本体ケース10の内側面10aに略嵌合する形状の外側面36aを有する上流側嵌合部36と、胴部30の下流端に接続するとともに、本体ケース10の内部を下流側から見た時、本体ケース10の内側面10aに略嵌合する形状の外側面38aを有する下流側嵌合部38と、を備えている。ベンチュリ流路32、34は、上流側から下流側に向かうにつれて流路径が縮径する縮径流路322、342と、縮径流路322、342よりも下流側に設けられており、上流側から下流側に向かうにつれて流路径が拡径する拡径流路324、344と、を備えている。本体ケース10の内部には、本体ケース10の内側面10aと縮径外側面302および拡径外側面304(胴部の外側面の例)の間であって、上流側嵌合部36と下流側嵌合部38の間に形成される隙間空間Sと、隙間空間Sを流出部14に連通させる第1水抜き流路D1および第2水抜き流路D2(1つまたは複数の液抜き流路の例)が設けられている。
Claims (9)
- 流入部および流出部を有する本体ケースと、
前記本体ケースに収容される第1微細気泡生成部と、を備える微細気泡発生装置であって、
前記第1微細気泡生成部は、
前記流入部と前記流出部の間に延在する胴部と、
前記胴部の内部を通って前記流入部と前記流出部の間を連通するベンチュリ流路と、
前記胴部の上流端に接続するとともに、前記本体ケースの内部を上流側から見た時、前記本体ケースの内側面に略嵌合する形状の外側面を有する上流側嵌合部と、
前記胴部の下流端に接続するとともに、前記本体ケースの内部を下流側から見た時、前記本体ケースの内側面に略嵌合する形状の外側面を有する下流側嵌合部と、
を備えており、
前記ベンチュリ流路は、
上流側から下流側に向かうにつれて流路径が縮径する縮径流路と、
前記縮径流路よりも下流側に設けられており、上流側から下流側に向かうにつれて流路径が拡径する拡径流路と、を備えており、
前記本体ケースの内部には、前記本体ケースの内側面と前記胴部の外側面の間であって、前記上流側嵌合部と前記下流側嵌合部の間に形成される隙間空間と、前記隙間空間を前記流出部に連通させる1つまたは複数の液抜き流路と、が設けられている、微細気泡発生装置。 - 前記液抜き流路は複数であって、第1液抜き流路と、第2液抜き流路と、を備えている、請求項1の微細気泡発生装置。
- 前記1つまたは複数の液抜き流路のうちの少なくとも1つは、鉛直下向きを下方として、前記隙間空間の最下部近傍で前記隙間空間に接続している、請求項1または2の微細気泡発生装置。
- 前記本体ケースに収容されるとともに、前記第1微細気泡生成部と前記流出部の間に設けられている第2微細気泡生成部をさらに備えており、
前記第2微細気泡生成部は、
上流側から下流側に向かう方向に延びる軸部と、
前記軸部の径方向外側を囲む外周部と、
前記軸部と前記外周部の間に設けられており、前記軸部に対して所定の旋回方向に流れる旋回流を生成する複数の羽根部と、
前記軸部、前記外周部、および前記複数の羽根部の間の隙間を通過する旋回流路と、を備えている、請求項1から3の何れか一項の微細気泡発生装置。 - 前記本体ケースは、上流側から下流側に向かう方向に延びる略円筒形状の内側面を有しており、
前記第1微細気泡生成部は、樹脂によって形成されており、
前記胴部は、前記縮径流路が設けられている部分において、上流側から下流側に向かうにつれて縮径する縮径外側面を有しており、
前記胴部は、前記拡径流路が設けられている部分において、上流側から下流側に向かうにつれて拡径する拡径外側面を有している、請求項1から4の何れか一項の微細気泡発生装置。 - 前記第1微細気泡生成部には、前記下流側嵌合部の一部を下流側から上流側に向かって切り欠いて形成される1つまたは複数の切り欠き部が設けられており、
前記1つまたは複数の切り欠き部は、前記1つまたは複数の液抜き流路として機能する、請求項1から5の何れか一項の微細気泡発生装置。 - 前記第1微細気泡生成部には、前記胴部の外側面から内側に向かって陥凹した形状を有する1つまたは複数の凹部が設けられており、
前記1つまたは複数の凹部は、前記1つまたは複数の切り欠き部に接続している、請求項6の微細気泡発生装置。 - 請求項1から7の何れか一項に記載の微細気泡発生装置を備える給湯器。
- 請求項1から7の何れか一項に記載の微細気泡発生装置を備える食器洗浄機。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22935616.7A EP4501199A1 (en) | 2022-03-28 | 2022-10-20 | Fine bubble generation device, water heater, and dishwasher |
| CN202280012165.3A CN116917027A (zh) | 2022-03-28 | 2022-10-20 | 微小气泡发生装置、热水器和洗碗机 |
| AU2022451213A AU2022451213A1 (en) | 2022-03-28 | 2022-10-20 | Fine bubble generator, water heater, and dishwasher |
| KR1020247010760A KR20240169589A (ko) | 2022-03-28 | 2022-10-20 | 미세 기포 발생 장치, 급탕기 및 식기 세정기 |
| CA3246940A CA3246940A1 (en) | 2022-03-28 | 2022-10-20 | Fine bubble machine, water heater and dishwasher |
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| WO2025126510A1 (ja) * | 2023-12-13 | 2025-06-19 | リンナイ株式会社 | 混合装置 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005115596A1 (ja) * | 2004-05-31 | 2005-12-08 | Sanyo Facilities Industry Co., Ltd. | 微細気泡含有液生成方法及び装置並びにこれに組み込まれる微細気泡発生器 |
| EP2060318A1 (en) * | 2007-11-15 | 2009-05-20 | YARA International ASA | Apparatus and method for generating and distributing bubbles in a gas-liquid mixture |
| JP2010172884A (ja) * | 2009-02-02 | 2010-08-12 | Ntf Corp | 気液混合生成装置 |
| JP2010201397A (ja) | 2009-03-05 | 2010-09-16 | Shibaura Mechatronics Corp | 微小気泡発生装置及び微小気泡発生方法 |
| JP2017136590A (ja) * | 2017-02-25 | 2017-08-10 | 株式会社micro−bub | マイクロバブル生成器及びマイクロバブル生成管路構造 |
| JP2021192902A (ja) * | 2020-06-08 | 2021-12-23 | 株式会社エムテック | 気液混合装置 |
| JP2022116684A (ja) * | 2021-01-29 | 2022-08-10 | 株式会社丸山製作所 | 気泡発生装置、シャワーノズルおよび圧力調整器 |
-
2022
- 2022-03-28 JP JP2022052188A patent/JP2023144958A/ja active Pending
- 2022-10-20 CA CA3246940A patent/CA3246940A1/en active Pending
- 2022-10-20 KR KR1020247010760A patent/KR20240169589A/ko active Pending
- 2022-10-20 AU AU2022451213A patent/AU2022451213A1/en active Pending
- 2022-10-20 EP EP22935616.7A patent/EP4501199A1/en active Pending
- 2022-10-20 CN CN202280012165.3A patent/CN116917027A/zh active Pending
- 2022-10-20 WO PCT/JP2022/039063 patent/WO2023188485A1/ja not_active Ceased
- 2022-11-10 TW TW111142907A patent/TW202339847A/zh unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005115596A1 (ja) * | 2004-05-31 | 2005-12-08 | Sanyo Facilities Industry Co., Ltd. | 微細気泡含有液生成方法及び装置並びにこれに組み込まれる微細気泡発生器 |
| EP2060318A1 (en) * | 2007-11-15 | 2009-05-20 | YARA International ASA | Apparatus and method for generating and distributing bubbles in a gas-liquid mixture |
| JP2010172884A (ja) * | 2009-02-02 | 2010-08-12 | Ntf Corp | 気液混合生成装置 |
| JP2010201397A (ja) | 2009-03-05 | 2010-09-16 | Shibaura Mechatronics Corp | 微小気泡発生装置及び微小気泡発生方法 |
| JP2017136590A (ja) * | 2017-02-25 | 2017-08-10 | 株式会社micro−bub | マイクロバブル生成器及びマイクロバブル生成管路構造 |
| JP2021192902A (ja) * | 2020-06-08 | 2021-12-23 | 株式会社エムテック | 気液混合装置 |
| JP2022116684A (ja) * | 2021-01-29 | 2022-08-10 | 株式会社丸山製作所 | 気泡発生装置、シャワーノズルおよび圧力調整器 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025126510A1 (ja) * | 2023-12-13 | 2025-06-19 | リンナイ株式会社 | 混合装置 |
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| JP2023144958A (ja) | 2023-10-11 |
| TW202339847A (zh) | 2023-10-16 |
| AU2022451213A1 (en) | 2024-11-07 |
| CN116917027A (zh) | 2023-10-20 |
| EP4501199A1 (en) | 2025-02-05 |
| KR20240169589A (ko) | 2024-12-03 |
| CA3246940A1 (en) | 2025-07-09 |
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