WO2011089715A1 - 微細泡沫群生成装置及び泡入浴装置 - Google Patents
微細泡沫群生成装置及び泡入浴装置 Download PDFInfo
- Publication number
- WO2011089715A1 WO2011089715A1 PCT/JP2010/050837 JP2010050837W WO2011089715A1 WO 2011089715 A1 WO2011089715 A1 WO 2011089715A1 JP 2010050837 W JP2010050837 W JP 2010050837W WO 2011089715 A1 WO2011089715 A1 WO 2011089715A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impeller
- foam
- side peripheral
- peripheral wall
- micro
- Prior art date
Links
Images
Classifications
-
- 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
- B01F23/2351—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
- B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
Definitions
- the present invention relates to a microfoam group generating apparatus and a foam bathing apparatus.
- This foam bathing device generates warm bubbles by supplying bubbles to a mixture of hot water and detergent manually introduced into the tank, and the warm bubbles are formed in the holes formed at the top of the tank. After entering, it will move gradually into the bath along the front wall of the tank.
- the gas-liquid mixing impeller in this fine foam group generation device is provided radially with a surface in the rotation direction of the rotation shaft, and is rotated along with the rotation of the rotation shaft, and the rotation center of the stirring fin It has an air supply pipe having one open end and the other end open to a gas container for containing an intake gas, and a regulator provided between the gas container and the stirring fins and capable of adjusting the suction amount by the air supply pipe. Generate bubbles that contain a lot of bubbles.
- Patent Document 3 has a tubular shape, a lower end is opened, a vent hole is formed in an upper end side surface, and an upper end is connected to a drive portion, and a ventilated cylinder rotated about a cylinder center is rotated.
- a gas-liquid mixing impeller for crushing external air sucked by a stayer.
- the bubble bathing device of Patent Document 1 it is impossible to generate a bubble composed of fine bubbles. This is because, for example, in bubble supply (bubbling) from a hole having an inner diameter of 0.5 mm or more, a large amount of foam having a diameter of 10 mm or more is contained. Alternatively, when bubbling from a hole having an inner diameter of less than 0.5 mm, clogging of the hole is likely to occur due to the structure, which makes it difficult to ensure maintenance.
- the foam is one in which the liquid contains a gas such as air, and is formed by the surface tension of the liquid that wraps the gas.
- the generation device of Patent Document 2 generates air bubbles containing a large number of micro air bubbles, and therefore the generation efficiency (energy efficiency and space efficiency) of fine foam groups is deteriorated. This is due to the following reasons. (1) While it is necessary to provide a flow velocity difference large enough for splitting at the gas-liquid interface for the generation of fine bubbles, a wide range of fluid is rotated in the stirring fin and it takes It is not possible to provide a sufficient flow rate difference, or excessive energy is required to obtain a sufficient flow rate difference. (2) When the fluid is rotated by the stirring fin, the generated fine foam is united by the centrifugal separation action of separating gas and liquid.
- the impeller of Patent Document 3 has a configuration in which the stirring fins have double concentric cylinders, so the shear rate acting on the gas-liquid interface increases in approximately two steps. This action reduces the diameter of the foam in approximately two steps, but since the shear rate is constant in each step, the once-refined foam is not further refined. Therefore, the rate at which the output energy of the motor is consumed for moving or swirling the foam is large, not for the miniaturization of the foam.
- An object of the present invention is to provide a fine foam group generation device and a foam bathing device capable of performing mixing of gas and liquid involved in bubble formation in a more space-saving manner.
- a cylindrical tube portion, an annular inner flange provided on the tube portion, and the inner flange concentrically with respect to the tube portion Adjacent to a casing having a projecting at least one cylindrical stationary side peripheral wall, a disc portion rotatably disposed in the casing around a center line of the tubular portion, the tubular portion and the tubular portion
- An impeller having at least one cylindrical movable side peripheral wall disposed between the stationary side peripheral walls to be fitted and between the adjacent stationary side peripheral walls and concentrically projecting from the disc portion concentrically with the cylindrical portion;
- a plurality of flow straightening plates which extend along the center line and which are projected circumferentially at intervals in the circumferential direction respectively facing the movable side peripheral wall and the cylindrical portion and the fixed side peripheral wall, the casing and the impeller Formed between And a mixing chamber folded back in a second direction opposite to the first direction and the first direction along the center line, and mixing the gas
- the gas and the liquid introduced into the mixing chamber are sheared by the flow in the circumferential direction accompanying the rotation of the impeller by the plurality of flow straightening plates protruding at intervals in the circumferential direction.
- mixing of gas and liquid involved in bubble generation (hereinafter also referred to as "gas-liquid mixing") is performed by the casing (the cylindrical portion, the inner flange, the plurality of fixed side peripheral walls) and the impeller (the disc portion, the plurality of movable It takes place intensively in the folded mixing chamber formed between the side walls). Therefore, gas-liquid mixing can be performed with less space.
- the end face of the inner flange facing the impeller in the direction of the centerline may be flat.
- the end face of the inner flange is flat and the straightening plate is not disposed, whereby the deviation of gas-liquid distribution with respect to the flow direction caused by the influence of the straightening plate at the time of gas-liquid mixing is alleviated.
- the micro-foam group generating device is disposed upstream of the mixing chamber, and is disposed at an intermediate portion of the swirling channel for swirling the flow of the liquid introduced into the mixing chamber, and the middle portion of the swirling channel And an air supply port for supplying a gas introduced into the mixing chamber.
- the liquid and the gas supplied from the air supply port are initially mixed in the swirling flow of the liquid in the swirling channel.
- the gas-liquid mixing can be made more efficient.
- the rotational direction of the impeller may be opposite to the swirling flow direction of the liquid in the swirling channel.
- a larger difference in flow velocity which is increased by the swirling flow velocity of the liquid, is applied as a shear force to the gas-liquid interface, so that the gas-liquid mixing can be further promoted and, consequently, the gas-liquid mixing It can be done with space saving.
- the cylindrical portion has an open end, and the micro-foam group generating device is disposed upstream of the mixing chamber, and the open end of the cylindrical portion is closed.
- a cylindrical lid side peripheral wall projecting from the lid concentrically with respect to the cylindrical portion, and rotatably disposed in the casing around the center line on the upstream side of the mixing chamber.
- An upstream impeller having an upstream disk portion, and a cylindrical upstream peripheral wall disposed between the cylindrical portion and the lid side peripheral wall and concentrically protruding from the upstream disk portion with respect to the cylindrical portion And a plurality of liquid transfer portions disposed circumferentially at intervals on the upstream side peripheral wall facing the cylindrical portion and extending along the center line, and between the casing and the upstream impeller And a first direction and a first direction along the centerline Second folded in a direction further and a introduction path for introducing the gas and liquid in the mixing chamber of, may diffuse the gas and liquid of the introduction path by the rotation of the upstream impeller.
- the gas and the liquid in the introduction path are diffused in a mode in which the liquid is transported by the plurality of liquid transport units arranged at intervals in the circumferential direction as the upstream impeller rotates. Be done. That is, diffusion of gas and liquid (hereinafter, also referred to as “gas-liquid dispersion”) is performed in the folded back introduction path formed between the casing and the upstream impeller. Therefore, it is possible to alleviate the bias of the gas-liquid distribution with respect to the flow direction of the gas and the liquid, and to transfer the energy at that time only to the gas and the liquid present in the area requiring rotation. The efficiency of the gas-liquid mixing in the mixing chamber can be further enhanced.
- the micro-foam group generating device further includes a plate member disposed downstream of the mixing chamber, and a discharge port disposed downstream of the plate member, wherein the plate member is the impeller. Air bubbles derived from the mixing chamber on the outer peripheral side can be discharged to the discharge port by blocking the flow in the circumferential direction.
- the air bubbles drawn from the mixing chamber on the outer peripheral side of the impeller are blocked in the flow in the circumferential direction by the plate member, thereby suppressing the swirling flow at the time of discharge to the discharge port. can do. Therefore, gas-liquid separation of air bubbles resulting from the swirling flow can be suppressed, and the foam quality can be suitably maintained. Moreover, the pipe loss resistance resulting from the swirling flow can be reduced, and the load on the compressor for introducing a gas or the like into the mixing chamber can be reduced accordingly. Furthermore, since the swirling flow can be suppressed in a small space in which the plate member can be disposed, the load on the drive source that rotationally drives the impeller can be reduced accordingly. apparatus.
- the straightening vanes are provided at equal intervals in the circumferential direction and have a trapezoidal shape. According to the same configuration, uniform bubbles can be generated, and the trapezoidal shape can be easily cut and formed by NC machining.
- it further comprises a second impeller coaxial with the impeller and having at least one movable side peripheral wall.
- the movable side peripheral wall of the impeller and the movable side peripheral wall of the second impeller have substantially the same diameter. According to the same configuration, it is possible to make the fine foam group generation device compact and easy to manufacture.
- the micro-foam group generating device includes an inner flange formed between a movable side peripheral wall of the invera and a movable side peripheral wall of the second impeller, and the stationary side peripheral wall extending on both sides of the inner flange.
- the fixed side peripheral wall extends in the axial direction of one flange, it is possible to make the fine foam group generating device compact.
- the radial distance between the movable peripheral wall and the fixed peripheral wall adjacent to each other is substantially constant.
- the micro-foam group generating device includes a plurality of fixed side peripheral walls and a plurality of movable side peripheral walls, and a line connecting at least one of the plurality of fixed side peripheral walls and the plurality of movable side peripheral walls is the center It is arranged to be inclined to the line.
- the circumferential speed can be increased, and the efficiency of bubble generation is improved.
- the plurality of movable side peripheral walls are elongated radially outward.
- the plurality of fixed side peripheral walls are elongated radially outward.
- a foam bathing device provided with the above-mentioned microfoam group generating apparatus, which mixes air as a gas and a surfactant-containing liquid as a liquid to generate a foam consisting of a microfoam group.
- the longitudinal cross-sectional view which shows the 2nd Embodiment of this invention. 7-7 sectional drawing of FIG.
- FIG. 1 is a block diagram which shows the water circuit diagram of the bubble bathing apparatus to which this embodiment is applied.
- this foam bathing apparatus is provided with a bath 10 for storing foam W therein.
- a foam inflow portion 11 for supplying foam W into the bath 10 and a foam outflow portion 12 for discharging the foam W in the bath 10 are installed.
- the foam inflow portion 11 opens at the upper end of the bath 10, and the foam outflow portion 12 opens at the bottom of the bath 10.
- the bathtub 10 is provided with a plurality of nozzles 13 distributed in the upper half thereof.
- the foam bathing apparatus includes a first flow control valve 22 connected to the water supply C via a water supply pipe 21a, and a second flow control valve 23 connected to the water heater H via a hot water supply pipe 21b. Furthermore, the first and second flow control valves 22 and 23 are provided with a mixing valve 24 connected via a water supply pipe 21c and a hot water supply pipe 21d. The mixing 24 mixes water and hot water whose flow rates are adjusted by the first and second flow rate adjustment valves 22 and 23 to generate warm water of a required water temperature (for example, 42 ° C.).
- the water supply piping 21a and the hot water supply piping 21b are provided with on-off valves 25 and 26, respectively, which are opened during use (for example, when bathing).
- the mixing 24 is connected to the third flow control valve 27 through a pipe 21e, and the third flow control valve 27 is connected to the stirring device 31 through a pipe 21f.
- the stirring device 31 is connected to the foaming agent tank 33 via the electric pump 32, and the surfactant-containing liquid (for example, the cleaning agent) stored in the foaming agent tank 33 is supplied by driving the electric pump 32. Be done.
- the stirring device 31 stirs the surfactant-containing liquid with the warm water whose flow rate is adjusted by the third flow rate adjustment valve 27 to generate so-called soap water.
- the stirring device 31 is connected to the suction port 34 a of the MBF (fine foam group) generating device 34 via a pipe 21 g.
- the suction port 34b of the MBF generator 34 is connected to the fourth flow control valve 36 via an air pipe 35a, and the fourth flow control valve 36 is connected to the compressor 37 via an air pipe 35b.
- the MBF generation device 34 mixes fine soap water having its flow rate adjusted by the third flow rate adjustment valve 27 and supplied with soap water supplied via the stirring device 31 and compressed air whose flow rate has been adjusted by the fourth flow rate adjustment valve 36.
- the foam W is formed (for example, a foam having a diameter of 150 ⁇ m or less and a water content of 20 to 30%), and the foam W is discharged from the discharge port 34c.
- the foam W is a warm foam warmed by the warm water generated in the mixing 24.
- bulb 39 for air which will be in an open state at the time of use are each provided in 21 g of piping and the air piping 35a.
- the MBF generating device 34 is also provided with an inlet 34 d for suctioning the circulating foam W.
- the discharge port 34c of the MBF generating device 34 is connected to the switching valve 42 for switching the foam passage via the foam piping 41a, and the switching valve 42 is connected to the foam inflow portion 11 via the foam piping 41b. Or is connected to the drain D through the bubble pipe 41c. Therefore, when the foam passage is switched so that the foam pipes 41a and 41b communicate with each other by the switching valve 42, the foam W discharged from the MBF generating device 34 (discharge port 34c) is a foam through the foam pipes 41a and 41b. It is supplied into the bathtub 10 from the inflow part 11.
- the foam outlet 12 is connected to a duct 45 installed in the bath 10, and the duct 45 is connected to the suction port of the circulation pump 47 via a foam pipe 46a.
- the circulation pump 47 may be, for example, a positive displacement pump such as a vane pump, and the discharge port thereof is connected to the switching valve 48 for switching the foam passage via the foam piping 46 b.
- the switching valve 48 is connected to the suction port 34d of the MBF generator 34 through the bubble pipe 46c, and is connected to the drain D through the bubble pipe 46d.
- the foam W in the bath 10 sucked by the circulation pump 47 is suctioned through the foam pipes 46b and 46c. Supplied to Then, the MBF generating device 34 sucks the foam W circulated by the circulation pump 47 from the suction port 34 d to generate or regenerate the foam W composed of a fine foam group.
- the foam passage is switched so that the foam pipes 46b and 46d communicate with each other by the switching valve 48, the foam W in the bath 10 sucked by the circulation pump 47 is drained from the drain D through the foam pipes 46b and 46d. Drained.
- the MBF generator 34 basically does not add soap water from the stirring device 31.
- the opening degree of the third flow control valve 27 is changed to warm the foam W, and the hot water generated by the mixing 24 is added.
- the water supply pipe 21 a is connected to the pipe 51 a between the water supply C and the on-off valve 25, and the hot water supply pipe 21 b is connected to the pipe 51 a between the water heater H and the on-off valve 26.
- the pipe 51 a is connected to each of the plurality of nozzles 13.
- the pipe 51 a is provided with an on-off valve 52 which is open at the time of use.
- These nozzles 13 are supplied with warm water obtained by mixing the water of the water supply C and the hot water of the hot water heater H when the on-off valve 52 is in the open state, so that misty water or warm water is supplied to the foam W in the bathtub 10 Add This is for the purpose of facilitating circulation of the foam W which has been drained and has become a skaska state. That is, the foam W tends to be difficult to transfer when the water content is less than 15%.
- the nozzle 13 adds atomized water so that the water content of the foam W in the foam outlet 12 is 15% or more.
- the water supply pipe 21a is provided with a temperature sensor 61 for detecting the water temperature Tc of the water supply C, and the water supply pipe 21b is provided with a temperature sensor 62 for detecting a hot water temperature Th of the water heater H. Further, the pipe 21 e is provided with a temperature sensor 63 for detecting the warm water temperature Tw generated by the mixing 24.
- the foam piping 41a is provided with a temperature sensor 64 for detecting the foam temperature Tf, which is the temperature of the foam W discharged from the MBF generator 34 near the switching valve 42, and the foam piping 46c has a switching valve.
- a temperature sensor 65 is provided for detecting the temperature To of the bubble W sucked into the MBF generating device 34 in the vicinity of 48.
- the temperature sensors 61 to 65 are electrically connected to the control device 66.
- the controller 66 controls the drive of the first to fourth flow control valves 22, 23, 27, 36, the MBF generator 34, the switching valves 42, 48, and the circulation pump 47 based on the detection results of the temperature sensors 61-65. Do.
- FIG. 2 is a longitudinal sectional view showing the MBF generator 34 of the present invention.
- 3A, 4 and 5A are cross-sectional views taken along lines 3A-3A, 4-4 and 5A-5A of FIG. The vertical direction in these figures corresponds to the vertical direction.
- the MBF generation device 34 includes an electric motor 71 whose rotation is controlled by the control device 66, and which extends in the horizontal direction an axis (hereinafter also referred to as "center line O").
- a spacer 73 is provided with a relay shaft 72 connected to rotate integrally with the rotary shaft 71a of 71, and further formed in a ring shape so as not to interfere with the rotation of the rotary shaft 71a and fixed to the case 71b of the electric motor 71.
- the MBF generating device 34 further includes a first casing 74 having a disc-like lid 74 a disposed on the side of the relay shaft 72 in the axial direction opposite to the electric motor 71.
- the first casing 74 has a main portion 74b which protrudes from a substantially cylindrical shape from the lid 74a in such a manner as to surround the outer peripheral surface of the relay shaft 72 to the inner peripheral side, and the electric motor 71 side of the main portion 74b
- the end face in the axial direction is fixed to the spacer 73 in such a manner as to abut on the spacer 73.
- the main body portion 74b is formed with a circular water supply port 74c which is pierced downward along the radial direction of the center line O from the top, and is communicated with the lower end of the water supply port 74c.
- An arc-shaped swirling channel 74d is formed extending in the counterclockwise direction in the circumferential direction of the center line O, and is further formed obliquely upward from the lower left portion along the radial direction of the center line O
- a circular air supply port 74e communicating with the middle portion of the swirling channel 74d is formed.
- the water supply port 74c communicates with the suction port 34a on the upper end side and can supply soap water, and the air supply port 74e disposed in the middle of the swirling channel 74d has the suction port 34b on the lower end side. Can communicate with the supply of compressed air. Therefore, the soap water supplied to the water supply port 74c is swirled in the swirling channel 74d. Then, in the swirling flow of the soap water in the swirling channel 74d, the soap water and the compressed air supplied to the air supply port 74e are initially mixed.
- the first casing 74 has a first cylindrical portion 74f projecting from a cylindrical shape in the axial direction from the lid 74a, and concentrically with respect to the first cylindrical portion 74f.
- a lid-side peripheral wall 74g axially protrudes from the cylindrical shape from the lid 74a.
- the first cylindrical portion 74f, the lid 74a, and the main portion 74b have substantially the same outer diameter and form a continuous circumferential surface.
- the lid side peripheral wall 74g forms an internal space S1 communicating with the swirling flow path 74d.
- the open end of the first cylindrical portion 74f is expanded to form an annular mounting wall 74h.
- the second casing 75 disposed on one side in the axial direction of the first casing 74 is a cylindrical first casing having an inner diameter substantially the same as the inner diameter of the first cylindrical portion 74f. It has two cylindrical parts 75a.
- the tip end of the second cylindrical portion 75a in the axial direction is attached to the inner peripheral surface of the mounting wall 74h in a fluid-tight manner, and the outer flange 75b abuts on the distal end surface of the mounting wall 74h. It is concluded at 74h.
- the second casing 75 has an annular inner flange 75c provided at the central portion in the axial direction of the second cylindrical portion 75a, and protrudes concentrically with respect to the second cylindrical portion 75a in the axial direction from the inner flange 75c.
- the first and second fixed side peripheral walls 75e and 75g have substantially the same outer diameter and inner diameter so as to form a continuous cylindrical shape with the arrangement inner flange 75c interposed therebetween.
- the first and second fixed side peripheral walls 75f and 75h have an inner diameter substantially the same as the inner diameter of the inner flange 75c, and form a continuous cylindrical inner peripheral surface.
- a plurality of (for example, three) spoke portions 75i extending in the radial direction toward the center line O are formed at positions in the axial direction of the inner flange 75c.
- the spokes 75i are arranged at equal angles (120 degrees) (see FIG.
- the first fixed side peripheral wall 75f forms an internal space S2 communicating with the internal space S1
- the second fixed side peripheral wall 75h communicates with the internal space S2 through an opening between the adjacent spokes 75i.
- An open end on one side in the axial direction of the second cylindrical portion 75 a is expanded to form an annular attachment wall 75 k having an outer flange.
- the second casing 75 includes an inner peripheral surface of the second cylindrical portion 75a, outer peripheral surfaces and inner peripheral surfaces of the first and second fixed peripheral walls 75e and 75g, and an outer peripheral surface of the first and second fixed peripheral walls 75f and 75h. And a plurality of flow straightening plates 76 projecting radially.
- the current plate 76 has a substantially trapezoidal shape.
- Each straightening vane 76 extends parallel to the center line O over the entire length of the second cylindrical portion 75a, the first fixed side peripheral walls 75e and 75f, and the second fixed side peripheral walls 75g and 75h. As shown in FIGS.
- the straightening vanes 76 are disposed at equal angular intervals in each of the second cylindrical portion 75a, the first fixed side peripheral walls 75e and 75f, and the second fixed side peripheral walls 75g and 75h.
- the inner flange 75c is between the second cylindrical portion 75a and the first fixed side peripheral wall 75e, between both the first fixed side peripheral walls 75e and 75f, between the second cylindrical portion 75a and the second fixed side peripheral wall 75g, and both second fixed sides
- a substantially annular radial flat surface 77 is formed between the peripheral walls 75g and 75h.
- the third casing 78 disposed on one side in the axial direction of the second casing 75 is a cylindrical third cylindrical portion having an inner diameter substantially the same as the inner diameter of the second cylindrical portion 75 a. It has 78a.
- the tip end of the third cylindrical portion 78a in the axial direction is attached to the inner peripheral surface of the mounting wall 75k in a fluid-tight manner, and is attached by, for example, a bolt at the outer flange 78b which abuts on the distal end surface of the mounting wall 75k. It is fastened to the wall 75k.
- the third casing 78 constitutes a casing together with the first and second casings 74 and 75
- the third cylindrical part 78a constitutes a cylindrical part together with the first and second cylindrical parts 74f and 75a.
- the third casing 78 has an annular inner flange 78c provided on one side in the axial direction of the third cylindrical portion 78a, and concentrically with the third cylindrical portion 78a on the other side in the axial direction from the inner flange 78c.
- the plurality of (for example, two) cylindrical third fixed side peripheral walls 78e and 78f are provided.
- the inner peripheral portion of the inner flange 78c extends to the inner peripheral side further than the third fixed side peripheral wall 78f, and the tip end portion thereof is bent so as to protrude in a boss shape in one axial direction, and the discharge port Form 34c.
- the third fixed side peripheral walls 78e and 78f have substantially the same outer diameter and inner diameter as the second fixed side peripheral walls 75g and 75h (and the first fixed side peripheral walls 75e and 75f), respectively. Then, the third fixed side peripheral wall 78f forms an internal space S4 in communication with the internal space S3 and the discharge port 34c.
- the third casing 78 includes a plurality of flow straightening plates 79 radially projecting on the inner peripheral surface of the third cylindrical portion 78a and the outer peripheral surface and the inner peripheral surface of the third fixed side peripheral walls 78e and 78f.
- Each straightening vane 79 extends parallel to the center line O over the entire length of the third cylindrical portion 78a and the third fixed side peripheral walls 78e and 78f.
- the straightening vanes 79 are disposed at equal angular intervals in each of the third cylindrical portion 78a and the third fixed side peripheral walls 78e and 78f.
- the inner flange 78c forms a substantially annular radial flat surface 80 between the third cylindrical portion 78a and the third fixed side peripheral wall 78e, and between both the third fixed side peripheral walls 78e and 78f.
- a stepped cylindrical rotation shaft 81 extending along the center line O is disposed.
- the rotating shaft 81 is rotatably supported by the support wall 75j at a longitudinal intermediate portion passing through the support wall 75j around the center line O, and at the other end in the axial direction passing through the lid 74a.
- the lid 74 a is rotatably supported about the center line O.
- the tip of the rotary shaft 81 protruding from the lid 74 a is connected to the relay shaft 72 so as to rotate integrally.
- the first impeller 82 is connected to the rotation shaft 81 so as to rotate integrally with the first impeller 82 at an axial position forming a boundary between the first and second casings 74 and 75.
- the first impeller 82 has a first disc portion 82a connected so as to rotate integrally with the rotary shaft 81, and concentrically with the first cylindrical portion 74f in the axial direction from the first disc portion 82a. It has the cylindrical upstream side surrounding wall 82b which protrudes.
- the upstream side peripheral wall 82b is disposed between the first cylindrical portion 74f and the lid side peripheral wall 74g. That is, the first casing 74 and the first impeller 82 are arranged in a so-called labyrinth shape.
- the upstream side peripheral wall 82b is provided with a groove portion 83 which functions as a plurality of liquid transfer portions and which is recessed on an outer peripheral surface facing the first cylindrical portion 74f.
- Each groove 83 extends parallel to the center line O over substantially the entire length of the upstream side peripheral wall 82b. As shown in FIG. 5B, the grooves 83 are arranged at equal angular intervals in the upstream side peripheral wall 82b.
- the upstream side peripheral wall 82 b has a plurality of relatively projecting wing shapes by forming unevenness by the grooves 83.
- the first disc portion 82a is tapered toward the outer periphery for promoting the movement of the compressed air and the soap water (hereinafter, also referred to as "gas-liquid") introduced into the inner space S1 to the outer peripheral side.
- a taper 82c is formed.
- the first impeller 82 has cylindrical first movable side peripheral walls 82d and 82e which concentrically protrude with respect to the second cylindrical portion 75a on one side in the axial direction from the first disc portion 82a.
- the first movable side peripheral wall 82d is disposed between the second cylindrical portion 75a and the first fixed side peripheral wall 75e
- the first movable side peripheral wall 82e is disposed between the first fixed side peripheral walls 75e and 75f. That is, the second casing 75 and the first impeller 82 are arranged in a so-called labyrinth shape.
- labyrinth shape In FIG.
- the distance in the radial direction between the adjacent first movable side peripheral wall 82d and the first fixed side peripheral wall 75e is constant (equal) along the length direction of the peripheral walls 82d and 75e
- the radial distance between the first movable side peripheral wall 82e and the first fixed side peripheral wall 75f is constant along the longitudinal direction of the peripheral walls 82d and 75e.
- the distance in the radial direction between the movable side peripheral wall 82d and the first fixed side peripheral wall 75e and the distance in the radial direction between the first movable side peripheral wall 82e and the first fixed side peripheral wall 75f may be the same or different.
- a circumferential groove G1 recessed from the inner peripheral surface to the radially outer side facing the first disc portion 82a is formed.
- the central line O is folded back in one side direction and the other side direction.
- An introduction path L displaced outward in the radial direction of the center line O and communicated with the circumferential groove G1 is formed, and the second casing 75 (for example, the second cylindrical portion 75a, the inner flange 75c, the first fixed side peripheral wall 75e, 75f) and the first impeller 82 (for example, the first disc portion 82a and the first movable side peripheral walls 82d and 82e) communicate with the circumferential groove G1 and alternate in one side direction and the other side direction of the center line O
- a first mixing chamber C1 is formed which is displaced inward in the radial direction of the center line O and is communicated with the internal space S2 while being folded back.
- the first impeller 82 has a configuration in which the impeller relating to gas-liquid mixing and the upstream impeller relating to gas-liquid dispersion are integrally formed, and the first disc portion 82a is the disc portion and the upstream side of the impeller.
- the upstream disc portion of the impeller is stacked.
- the soap liquid tending to stay radially outward in the introduction passage L of the gas and liquid introduced into the internal space S1 is conveyed upward by the groove 83.
- the upstream side peripheral wall 82b does not have a structure such as a straightening plate which inhibits the swirling flow of soap water or the like.
- the gas and liquid introduced into the first mixing chamber C1 are mixed in such a manner that the flow in the circumferential direction accompanying the rotation of the first impeller 82 is sheared by the plurality of flow straightening plates 76.
- the rotation direction of the first impeller 82 is set in the reverse direction of the swirling flow direction of the soap water or the like in the swirling flow path 74d, and only the swirling flow velocity of the soap water or the like is set.
- the increased flow velocity difference is applied to the air-liquid interface as a shearing force. Therefore, in the introduction path L, the promotion of gas-liquid mixing is also achieved.
- the second impeller 84 is connected to one axial end of the rotary shaft 81 so as to rotate integrally.
- the second impeller 84 has a second disc portion 84a connected so as to rotate integrally with the rotating shaft 81, and concentrically with the second cylindrical portion 75a in the axial direction from the second disc portion 84a. It has the cylindrical 2nd movable side surrounding wall 84b, 84c which protrudes.
- the second movable side peripheral wall 84b is disposed between the second cylindrical portion 75a and the second fixed side peripheral wall 75g, and the second movable side peripheral wall 84c is disposed between the second fixed side peripheral wall 75g and 75h. That is, the second casing 75 and the second impeller 84 are arranged in a so-called labyrinth shape.
- the second impeller 84 has cylindrical third movable side peripheral walls 84d and 84e concentrically protruding with respect to the third cylindrical portion 78a on one side in the axial direction from the second disc portion 84a.
- the third movable side peripheral wall 84d is disposed between the third cylindrical portion 78a and the third fixed side peripheral wall 78e
- the third movable side peripheral wall 84e is disposed between the third fixed side peripheral walls 78e and 78f. That is, the third casing 78 and the second impeller 84 are disposed in a so-called labyrinth shape.
- the second and third movable side peripheral walls 84b and 84d have substantially the same outer diameter and inner diameter so as to form a continuous cylindrical shape sandwiching the second disc portion 84a.
- the second and third movable side peripheral walls 84c and 84e also have substantially the same outer diameter and inner diameter so as to form a continuous cylindrical shape sandwiching the second disc portion 84a.
- a circumferential groove G2 recessed outward in the radial direction facing the second disc portion 84a from the inner peripheral surface thereof is formed.
- the second casing 75 for example, the second cylindrical portion 75a, the inner flange 75c, and the second fixed side peripheral walls 75g and 75h
- the second impeller 84 for example, the second disc portion 84a and the second movable side peripheral walls 84b and 84c
- a second mixing chamber C2 communicating with the circumferential groove G2 while being communicated with the internal space S3 and being folded outward in the radial direction of the center line O while being folded back in one direction and the other direction of the center line O
- the third casing 78 for example, the third cylindrical portion 78a, the inner flange 78c, and the third fixed side peripheral walls 78e and 78f
- the second impeller 84 for example, the second disc portion 84a and the third mov
- the gas / liquid introduced into the second mixing chamber C2 via the internal spaces S2 and S3 flows in the circumferential direction as the second impeller 84 rotates.
- the plurality of flow straightening plates 76 are mixed in a sheared manner.
- the gas and liquid introduced into the third mixing chamber C3 via the circumferential groove G2 are further mixed in a mode in which the flow in the circumferential direction accompanying the rotation of the second impeller 84 is sheared by the plurality of flow straightening plates 79 Be done.
- the gas-liquid mixed in this manner is discharged from the discharge port 34 c as the foam W composed of the fine foam group.
- the soap water supplied to the water supply port 74c through the suction port 34a is swirled in the swirling channel 74d.
- the soap water and the compressed air supplied to the air supply port 74e are initially mixed, and are introduced into the introduction path L via the internal space S1.
- the gas-liquid (i.e., soap water and compressed air) introduced into the introduction path L is transported in a manner such that soap water which tends to stay on the lower side is conveyed upward by the groove 83 by rotation of the first impeller 82. It diffuses and is introduced into the first mixing chamber C1 via the circumferential groove G1.
- a larger flow velocity difference is given to the gas-liquid interface as a shear force, It is promoted.
- the gas-liquid introduced into the first mixing chamber C1 is mixed in such a manner that the circumferential flow accompanying the rotation of the first impeller 82 is sheared by the plurality of flow straightening plates 76, and is introduced into the internal space S2.
- corrugations such as an inner side flange 75c, the bias of the gas-liquid distribution with respect to the flow direction which arose under the influence of the current plate 76 at the time of gas-liquid mixing is relieved.
- the gas and liquid introduced into the internal space S3 from the internal space S2 are introduced into the second mixing chamber C2 and mixed similarly by the rotation of the second impeller 84. Then, the mixed gas and liquid are introduced into the third mixing chamber C3 via the circumferential groove G2 and are further mixed.
- the inner flange 78c relieve
- the gas-liquid mixed in the above manner is discharged from the discharge port 34 c as the foam W composed of a fine foam group.
- the foam W is supplied into the bath 10 through the foam pipes 41a, 41b and the like.
- the following effects can be obtained.
- the gas-liquid mixture relating to the bubble generation is the first mixing chamber C1 formed between the second casing 75 and the first impeller 82, and the second mixing chamber C2 formed between the second casing 75 and the second impeller 84.
- the flat surfaces 77 and 80 of the inner flanges 75c and 78c are formed flat, and no flow control plate and the like are disposed, whereby the flow caused by the effects of the flow control plates 76 and 79 at the time of gas-liquid mixing
- the bias of the gas-liquid distribution with respect to the direction is alleviated, and the gas-liquid mixing on the downstream side of the flow straighteners 76, 79 can be made more efficient.
- the rotation direction of the first impeller 82 is set in the opposite direction of the swirling flow direction of the soap water in the swirling flow path 74d. Therefore, in the first mixing chamber C1, a larger flow velocity difference, which is raised by the swirling flow velocity of the soap water, is applied as a shear force to the gas-liquid interface, so that the gas-liquid mixing can be further promoted. Gas-liquid mixing can be performed in a further space-saving manner.
- the soap water is conveyed by the plurality of grooves 83 arranged at intervals in the circumferential direction as the first impeller 82 rotates. Diffused. That is, in the gas-liquid dispersion, the introduction path L formed between the first casing 74 and the first impeller 82 (the first disc portion 82a and the upstream side circumferential wall 82b) provided with the lid 74a (the lid side circumferential wall 74g) To be done.
- the bias of the gas-liquid distribution with respect to the flow direction of the gas-liquid can be alleviated, and the energy at that time can be transmitted only to the gas-liquid present in the area requiring rotation, so it is on the downstream side
- the gas-liquid mixing in the first mixing chamber C1 and the like can be made more efficient.
- the foam W having the fine foam group generated by the MBF generation device 34 can perform foam bath with excellent texture.
- the first impeller 82 combines the function of gas-liquid mixing and the function of gas-liquid dispersion, for example, as compared to the case where these functions are individually provided to two impellers, for example. The number of parts can be reduced.
- the bubbles W can be generated more finely by repeating the gas-liquid mixing and the gas-liquid dispersion on the flat surfaces 77 and 80 by the mixing chambers C1 to C3 in multiple stages.
- the functions such as gas-liquid mixing and gas-liquid dispersion into the MBF generation device 34 in a centralized manner, it is possible to continuously generate one pass of fine foam group with high efficiency and space saving. .
- the MBF generation device 34 connected to the discharge port of the circulation pump 47 generates or regenerates the foam W that has disappeared or deteriorated along with the circulation, so that the foam bath has excellent texture. It can continue. That is, by heating and generation or regeneration of the circulated foam W, it is possible to continue bathing with the warm foam W consisting of fine foams. Moreover, since the foam
- the high quality foam W can be regenerated only by adding a small amount of water or warm water in the MBF generation device 34
- the foam W can be generated or regenerated more efficiently than when the foam W is generated from scratch. That is, when generating the foam W from one, it is necessary to make the amount of water occupied in the whole foam W 0% to 25%, for example, whereas when the foam W is regenerated by circulation, the amount of water occupied in the whole foam W For example, it is only necessary to make 15% to 25%.
- bubble W circulated has a certain amount of heat, compared with the case where the foam
- the straightening vanes project at equal intervals in the circumferential direction of each peripheral wall, and have a trapezoidal shape.
- the thin-walled foam group generating device further includes a second impeller having a plurality of cylindrical movable side peripheral walls coaxially with the first impeller. If two impellers are provided in the generator, it is conceivable that the two impellers are axially aligned or radially nested. If the axes of the two impellers are swayed as axially aligned, the angle of deflection of the impeller will be large, resulting in contact with the casing and affecting the rotation of the impeller, which may not produce the desired performance. There is sex.
- the first movable side peripheral walls 82d and 82e of the first impeller 82 and the second movable side peripheral walls 84b and 84c of the second impeller 84 have the same diameter. For this reason, while being able to make a fine bubble group production
- An inner flange 75c is formed between the first movable side peripheral wall 82d and 82e of the first inverter and the second movable side peripheral wall 84b and 84c of the second impeller 84, and the fixed side is formed on both sides of the inner flange
- the peripheral walls 75e, 75f, 75g, and 75h extend. According to this configuration, since the fixed side peripheral wall extends in the axial direction of one flange, it is possible to make the fine foam group generating device compact.
- the distance in the radial direction between the first movable side peripheral wall 82d and the first fixed side peripheral wall 75e adjacent to each other is constant along the longitudinal direction of the peripheral walls 82d and 75e, and the first movable side peripheral wall
- the radial distance between 82e and the first fixed side peripheral wall 75f is also constant along the longitudinal direction of the peripheral walls 82d and 75e.
- a plate member is disposed on the downstream side of the mixing chamber of the MBF generating apparatus, and bubbles (bubbles W) drawn out of the mixing chamber are blocked in the circumferential flow to the discharge port 34c. Since the configuration is different from that of the first embodiment in that the discharge is performed, the detailed description of the same portions will be omitted.
- FIG. 6 is a longitudinal sectional view showing the MBF generation device 90 of the present embodiment
- FIG. 7 is a sectional view taken along line 7-7 of FIG.
- the MBF generation device 90 includes an electric motor 91 controlled to rotate by the control device 66, and rotates integrally with the rotation shaft (not shown) of the electric motor 91 whose axis extends in the horizontal direction.
- a first casing 93 as a casing fixed to the case 91 a of the electric motor 91.
- the first casing 93 has an annular lid 93a as an inner flange that forms an inner space S11 on the inner peripheral side so as not to interfere with the rotation of the rotation shaft 92 etc., and from the lower part of the lid 93a to the center It has a circular water supply port 93b drilled upward along the radial direction of the line O to communicate with the internal space S11, and further drilled downward along the radial direction of the center line O from the top of the lid 93a. And a circular air supply port 93c communicating with the internal space S11.
- the water supply port 93b communicates with the suction port 34a (see FIG. 1) at the lower end side and can supply soap water, and the air supply port 93c communicates with the suction port 34b (see FIG. 1) at the upper end side. Compressed air can be supplied. Therefore, the soap water supplied through the water supply port 93b and the compressed air supplied through the air supply port 93c are initially mixed in the internal space S11.
- the first casing 93 has a first cylindrical portion 93d as a cylindrical portion projecting cylindrically on one side in the axial direction from the outer peripheral end of the lid 93a, and the first cylinder on one side in the axial direction from the lid 93a. It has a plurality of (for example, two) cylindrical fixed side peripheral walls 93e and 93f protruding concentrically with respect to the portion 93d.
- the fixed side peripheral wall 93f forms an internal space S12 communicating with the internal space S11.
- the open end of the first cylindrical portion 93d is expanded to form an annular mounting wall 93g.
- the first casing 93 includes a plurality of flow straightening plates 94 radially projecting on the inner peripheral surface of the first cylindrical portion 93 d, the outer peripheral surface and the inner peripheral surface of the fixed side peripheral wall 93 e, and the outer peripheral surface of the fixed side peripheral wall 93 f.
- the current plate 94 has a substantially trapezoidal shape.
- Each straightening vane 94 extends parallel to the center line O over the entire length of the first cylindrical portion 93 d and the fixed side peripheral walls 93 e, 93 f.
- the flow straightening plates 94 are disposed at equal angular intervals in each of the first cylindrical portion 93 d and the fixed side peripheral walls 93 e and 93 f.
- the lid 93a forms a substantially annular radial flat surface 95 between the first cylindrical portion 93d and the fixed peripheral wall 93e, and between the fixed peripheral walls 93e and 93f.
- the second casing 96 disposed on one side in the axial direction of the first casing 93 has a stepped cylindrical second cylindrical portion 96 a that is expanded in the direction.
- a distal end portion of the second cylindrical portion 96a on the other side in the axial direction is liquid-tightly mounted on the inner peripheral surface of the mounting wall 93g, and is fixed to the mounting wall 93g.
- the second casing 96 also has an annular lid wall 96b provided on one side in the axial direction of the second cylindrical portion 96a.
- the tip end of the cover wall 96b on the inner peripheral side is bent so as to protrude in a boss shape on one side in the axial direction to form the discharge port 34c.
- the second cylindrical portion 96a forms an internal space S13 in communication with the internal space S12 and the discharge port 34c.
- An impeller 100 is connected to the tip of the rotary shaft 92 disposed in the first casing 93 so as to rotate integrally.
- the impeller 100 has a bottomed cylindrical attachment portion 100a in which a tip end portion on one side in the axial direction of the rotation shaft 92 fits, and a ring-shaped flange portion 100b extending radially outward from the opening end of the attachment portion 100a.
- a cylindrical support wall 100c connected to the outer peripheral end of the flange portion 100b and disposed concentrically with the attachment portion 100a.
- One end in the axial direction of the support wall 100c extends to the vicinity of the mounting wall 93g in the direction, and is continuous with the ring-shaped disc portion 100d extending outward in the radial direction.
- the disc portion 100d faces one axial end of the fixed side peripheral walls 93e and 93f.
- the impeller 100 has a plurality of (for example, two) movable side peripheral walls 100e and 100f projecting concentrically with respect to the support wall 100c (the first cylindrical portion 93d) on the other side in the axial direction from the disk portion 100d.
- the movable side peripheral wall 100e is disposed between the first cylindrical portion 93d and the fixed side peripheral wall 93e, and the movable side peripheral wall 100f is disposed between the movable side peripheral walls 100e and 100f. That is, the first casing 93 and the impeller 100 are arranged in a so-called labyrinth shape.
- the impeller 100 forms a space S14 having a substantially W-shaped cross section, which is divided by the mounting portion 100a, the flange portion 100b, and the support wall 100c around the center line O. Further, communication between the first casing 93 (the lid 93a, the first cylindrical portion 93d, the fixed side peripheral wall 93e, 93f) and the impeller 100 (the disk portion 100d, the movable side peripheral wall 100e, 100f) into the internal space S12 At the same time, the mixing chamber C11 is displaced outward in the radial direction of the center line O while being folded back to one side direction and the other side direction of the center line O, and the mixing chamber C11 communicated with the open end of the first cylindrical portion 93d on the outer peripheral side of the impeller 100 It is formed.
- a plate member 101 shaped like a claw gear is disposed at the opening end of the first casing 93 so as to be held between the step of the mounting wall 93g and the other end face in the axial direction of the second cylindrical portion 96a.
- the plate member 101 has a lid portion 101a having a substantially W-shaped cross section, which is uneven in conformity with the space S14, around the center line O, and has a diameter continuously to one axial end of the lid portion 101a on the outer peripheral side. It has a ring-shaped flange portion 101b extending outward in the direction.
- the flange portion 101b has an outer diameter smaller than the outer diameter of the disc portion 100d, and is disposed apart from the disc portion 100d in the axial direction. Further, as shown in FIG.
- the plate member 101 has a plurality of (six) arc-shaped attachment pieces 101 c extending at equal angular intervals radially outward from the flange portion 101 b, and the attachment pieces 101 c A plurality of (six) protrusions 101 d are provided to project in the axial direction at the circumferential center near the outer periphery.
- the outer diameter of the mounting piece 101c is set to be substantially the same as the inner diameter of the mounting wall 93g.
- the plate member 101 is firmly held by the projections 101d being crushed when being pinched by the step of the mounting wall 93g and the other axial end face of the second cylindrical portion 96a at the outer peripheral edge of each mounting piece 101c. Be done.
- the plate member 101 attached to the attachment wall 93g forms a plurality of (in this case, six) arc-shaped discharge flow paths 102 between the adjacent attachment pieces 101c. As shown in FIG. 6, each discharge passage 102 communicates with the mixing chamber C11 on the outer peripheral side of the impeller 100, and also communicates with the internal space S13 and the discharge port 34c.
- the impeller 100 rotates, the gas and liquid initially mixed in the internal space S11 are introduced into the mixing chamber C11 through the internal space S12.
- the gas and liquid introduced into the mixing chamber C11 are mixed in such a manner that the flow in the circumferential direction accompanying the rotation of the impeller 100 is sheared by the plurality of flow straightening plates 94.
- the lid 93a forms a flat surface 95 without irregularities such as a straightening plate, thereby alleviating the deviation of the gas-liquid distribution in the flow direction caused by the influence of the straightening plate 94 at the time of gas-liquid mixing.
- the gas-liquid mixed in the mixing chamber C11 is discharged to the internal space S13 and the discharge port 34c through the discharge flow paths 102 as the foam W composed of a fine foam group.
- the bubbles W discharged from the discharge flow paths 102 are blocked in the flow in the circumferential direction by the adjacent mounting pieces 101 c.
- the swirling flow of the bubbles W discharged from the discharge flow paths 102 is suppressed, and the gas-liquid separation of the bubbles W is suppressed.
- the volume of the space S14 is reduced by the amount of the lid portion 101a of the plate member 101 protruding into the space S14, whereby the amount of bubbles attached to the impeller 100 in the space S14 is reduced. Thereby, the energy consumption required for rotation of the impeller 100 is reduced.
- the bubbles W drawn from the mixing chamber C11 on the outer peripheral side of the impeller 100 are blocked in the flow in the circumferential direction by the plate member 101 (attachment piece 101c) to the discharge port 34c. It is possible to suppress the swirling flow at the time of discharge of Therefore, the gas-liquid separation of the foam
- the load of the compressor 37 for introducing the compressed air into the mixing chamber C11 can be reduced, and hence the specification and cost of the compressor 37 can be reduced. Furthermore, since the swirling flow can be suppressed in a small space where the plate member 101 can be disposed, the load on the electric motor 91 for rotationally driving the impeller 100 can be reduced accordingly, and thus the specifications of the electric motor 91 can be reduced. Cost reduction is possible.
- the volume of the space S14 is reduced by the plate member 101 (lid part 101a) to reduce the amount of bubbles adhering to the impeller 100, thereby reducing the energy consumption required for the rotation of the impeller 100. be able to. As a result, it is possible to reduce the specifications and the cost of the electric motor 91 that rotationally drives the impeller 100.
- gas-liquid mixing (and gas-liquid dispersion on the flat surface 95) is performed only in the one-stage mixing chamber C11.
- gas-liquid mixing is performed only in the one-stage mixing chamber C11.
- the inflow fluid is dispersed to the entire circumference inside the cylinder 93f, after passing through the area with small surface movement speed that is the center side of the impeller 100, it passes through the area with high surface movement speed that is the outer circumference side of the impeller 100.
- the inflowing fluid passes the area where the surface movement speed of the impeller 100 is high and passes the area where the surface movement speed is low, that is, the inflowing fluid passes the area where the flow speed difference is large and In this case, in the region where the flow velocity difference is small, the bubble refining effect can not be sufficiently obtained as compared with the region where the flow velocity difference is large. For this reason, in a region where the flow velocity difference is small, the impeller 100 is rotated while being mainly subjected to the viscosity resistance of the bubbles, and energy is excessively consumed.
- the energy efficiency required for gas-liquid mixing can be increased by adopting the same configuration, so that it is possible to generate a fine foam group (foam W) with a more compact configuration.
- the load on the electric motor 91 that rotationally drives the impeller 100 can be reduced, and as a result, the specification and cost of the electric motor 91 can be reduced.
- the plate member 101 can improve its assembling property by having a non-directional symmetrical structure around the center line O.
- the above embodiment may be modified as follows.
- the groove 83 may be formed in a groove shape such as a semicircle or a triangle.
- a blade may be employed, for example, in place of the groove 83 as the liquid transfer unit.
- the groove 83 does not necessarily have to be parallel to the center line O, and may be inclined linearly or spirally with respect to the center line O.
- the cross-sectional shapes of the outer peripheral surface and the inner peripheral surface of the movable side peripheral walls 82d and 82e, the second movable side peripheral walls 84b and 84c, and the third movable side peripheral walls 84d and 84e do not have to be so-called perfect circles. You may flatten in the range which does not inhibit rotation of impeller 82,84.
- the cross-sectional shapes of the outer peripheral surface and the inner peripheral surface of the first cylindrical portion 74f, the lid side peripheral wall 74g, and the upstream side peripheral wall 82b do not have to be so-called perfect circles. You may be flat in the range which does not inhibit rotation.
- the cross-sectional shapes of the outer peripheral surface and the inner peripheral surface of the first cylindrical portion 93d, the fixed side peripheral walls 93e and 93f, and the movable side peripheral walls 100e and 100f do not have to be so-called perfect circles; You may flatten in the range which does not inhibit 100 rotation.
- the plate member has an outer diameter substantially the same as the inner diameter of the mounting wall 93g, and has a plurality of holes (discharge flow channels) formed at equal angular intervals in the peripheral portion. It may be disc-shaped.
- the flow regulating plates 76, 79, and 94 do not necessarily have to be parallel to the center line O, and may be inclined linearly or spirally with respect to the center line O.
- the movable side peripheral walls 82d and 82e of the first impeller 82, the movable side peripheral walls 84b and 84c of the second impeller 84, and the movable side peripheral walls 100e and 100f of the impeller 100 have the same length. It may be different. For example, as shown in FIG.
- the lengths of the movable side peripheral walls 100e and 100f become longer as they move away from the central axis O, and the imaginary line M connecting the distal end portions of the movable side peripheral walls 100e and 100f is the center line O
- the movable side peripheral walls 100e and 100f may be provided to be inclined with respect to the above.
- the fixed side peripheral walls of the casing for example, the fixed side peripheral walls 93e and 93f of the first casing 93, become longer as the fixed side peripheral walls 93e and 93f become farther from the central axis O, and the fixed side peripheral walls 93e and 93f
- the lengths may be different so that the imaginary line M ′ connecting the tip of the tip is inclined with respect to the center line O.
- Such a configuration can reduce local resistance to tube loss. That is, the circumferential speed can be increased, and the efficiency of bubble generation is improved. Furthermore, when the casing or the impeller is formed by a mold, it can be easily removed from the mold by providing the peripheral wall with a slope.
- the present invention may be used to generate fine foam groups for applications other than foam bathing, such as hand washing.
- the present invention may be configured integrally with the circulation pump, the bubble inlet and the bubble outlet independently of the bath 10.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
(1)微細な泡の生成のためには、気液界面に分裂に充分な大きさの流速差を与えることが必要であるのに対し、攪拌フィンでは広範囲の流体を回転させてしまってかかる十分な流速差を与えられず、あるいは充分な流速差を得るために過度なエネルギーを要する。
(2)攪拌フィンで流体を回転させると、気液を分離させる遠心分離作用で、生成した微細泡沫が合体してしまう。
(3)攪拌室及び攪拌フィンの隙間を通過する大気泡の割合が多く、この構造で微細な泡沫群を生成する場合、大気泡の微細化の確率を増すために攪拌フィンを多段化して使用する必要があり、エネルギー効率・スペース効率が著しく悪くなってしまう。
同構成によれば、前記内側フランジの端面が平坦で整流板を配置しないことで、気液混合時の前記整流板の影響により生じた流れ方向に対する気液分布の偏りが緩和され、当該整流板の下流側の気液混合をより高効率化することができる。
同構成によれば、液体の旋回する流れ速度分だけ嵩上げされた、より大きな流速差がせん断力として気液界面に与えられるため、気液混合を更に促進することができ、ひいては気液混合を省スペースで行うことができる。
装置。
同構成によれば、均一な泡を生成可能であり、台形形状はNC加工によって切削してつくることが可能であるため、作り易い。
同構成によれば、ケーシングと接触し、損傷する可能性や、内径では周速度が遅くなり泡生成に寄与しなくなるという不具合が除かれる。
同構成によれば、微細泡沫群生成装置をコンパクトにすることが可能であると共に、製造が容易である。
別の実施形態において、互いに隣接する前記可動側周壁と前記固定側周壁との間の径方向での距離がほぼ一定である。
別の実施形態において、微細泡沫群生成装置が複数の固定側周壁と複数の可動側周壁を備え、複数の固定側周壁と複数の可動側周壁の少なくとも一方の先端部を結ぶ線が、前記中心線に対して傾斜するように配置されている。
別の実施形態において、前記複数の可動側周壁は、径方向外側に向かって長くなっている。
別の実施形態において、複数の前記固定側周壁は、径方向外側に向かって長くなっている。
別の実施形態において、気体としての空気及び液体としての界面活性剤含有液を混合して微細泡沫群からなる泡を生成する、上記微細泡沫群生成装置を備えた泡入浴装置が提供される。
以下、本発明を具体化した第1の実施形態を図面に従って説明する。
図1は、本実施形態が適用される泡入浴装置の水回路図を示す構成図である。同図に示されるように、この泡入浴装置は、その内部に泡Wを溜める浴槽10を備えている。浴槽10には、該浴槽10内に泡Wを供給するための泡流入部11と、浴槽10内の泡Wを排水するための泡流出部12とが設置されている。泡流入部11は、浴槽10の上端部に開口しており、泡流出部12は、浴槽10の底部に開口している。また、浴槽10には、その上半分に分散配置された複数のノズル13が配設されている。
循環ポンプ47は、例えばベーンポンプ等の容積形ポンプであってよく、その吐出口は泡配管46bを介して泡路を切り替えるための切替バルブ48に接続されている。切替バルブ48は、泡配管46cを介してMBF生成装置34の前記吸入口34dに接続されるとともに、泡配管46dを介してドレインDに接続されている。従って、切替バルブ48により泡配管46b,46cが連通するように泡路が切り替えられたとき、循環ポンプ47により吸引された浴槽10内の泡Wは、泡配管46b,46cを介して吸入口34dに供給される。そして、MBF生成装置34は、循環ポンプ47により循環された泡Wをその吸入口34dから吸入して微細泡沫群からなる泡Wを生成または再生する。一方、切替バルブ48により泡配管46b,46dが連通するように泡路が切り替えられたとき、循環ポンプ47により吸引された浴槽10内の泡Wは、泡配管46b,46dを介してドレインDから排水される。
まず、吸入口34aを通じて給水口74cに供給された石鹸水は、旋回流路74dにおいてその流れが旋回される。そして、旋回流路74dにおける石鹸水の旋回する流れで、該石鹸水と給気口74eに供給された圧縮空気とが初期混合され、内部空間S1を介して導入路Lに導入される。導入路Lに導入された気液(すなわち石鹸水及び圧縮空気)は、第1インペラー82の回転により、前記溝部83にて、下側に滞留しがちな石鹸水が上方に搬送される態様で拡散され、周溝G1を介して第1混合室C1に導入される。この際、第1インペラー82が前記旋回流路74dにおける石鹸水等の旋回する流れ方向の逆方向に回転することで、より大きな流速差がせん断力として気液界面に与えられ、気液混合の促進が図られる。
(1)本実施形態では、第1~第3混合室C1~C3内に導入される気液は、第1及び第2インペラー82,84の回転に伴う周方向の流れが、周方向に間隔をおいて突設された複数の整流板76,79にせん断される態様で混合される。つまり、気泡生成に係る気液混合は、第2ケーシング75及び第1インペラー82間に形成される第1混合室C1、第2ケーシング75及び第2インペラー84間に形成される第2混合室C2、第3ケーシング78及び第2インペラー84間に形成される第3混合室C3でそれぞれ集約的に行われる。従って、気泡生成に係る気液混合をより省スペースで行うことができる。
(7)本実施形態では、第1インペラー82に、気液混合の機能及び気液分散の機能を併せ持たせたことで、例えばこれらの機能を2つのインペラーに個別に持たせる場合に比べて部品点数を削減することができる。
(9)本実施形態では、気液混合及び気液分散等の機能をMBF生成装置34に集約的に内蔵したことで、微細泡沫群を高効率・省スペースでワンパスの連続生成が可能である。
(12)整流板が、各周壁の周方向に等間隔に突設され、台形状を呈している。このため、均一な泡を生成可能であり、台形形状はNC加工によって切削してつくることが可能である。
(13)徽細泡沫群生成装置が、第1インペラーと同軸上に、複数の円筒状の可動側周壁を有する第2インペラーをさらに備えている。2つのインペラーを生成装置内に設ける場合、2つのインペラーは、軸方向に整列されるか、または径方向に入れ子式に配置することが考えられる。軸方向に整列させたとして、2つのインペラーの軸がぶれている場合、インペラーのふれ角が大きくなり、その結果、ケーシングと接触し、インペラーの回転に影響を与え、所望の性能が出せない可能性がある。径方向に配置させたとして、インペラーを回転させた場合、内径と外径の周速度の差が大きくなり、内径では周速度が遅くなり泡生成に寄与しなくなるという不具合が生じる。この点、2つのインペラーを同軸上に配置すると、かかる問題点が解決される。
(14)第1インペラー82の第1可動側周壁82d,82eと第2インペラー84の第2可動側周壁84b,84cが同径である。このため、微細泡沫群生成装置をコンパクトにすることが可能であると共に、製造が容易である。
(15)第1インベラーの第1可動側周壁82d,82eと第2インペラー84の前記第2可動側周壁84b,84cとの間に内側フランジ75cが形成され、前記内側フランジの両側に前記固定側周壁75e,75f,75g,75hが延びている。この構成によれば、1つのフランジの軸方向に固定側周壁が延びているため、微細泡沫群生成装置をコンパクトにすることが可能である。
(16)互いに隣接する第1可動側周壁82dと第1固定側周壁75eとの間の径方向における距離が、それら周壁82d,75eの長さ方向に沿って一定であり、第1可動側周壁82eと第1固定側周壁75fとの間の径方向における距離もそれら周壁82d,75eの長さ方向に沿って一定である。これにより、流路面積が一定となり、流体の流れ抵抗の均一化が可能であり、管損失抵抗が抑えられる。
以下、本発明を具体化した第2の実施形態を図面に従って説明する。なお、第2の実施形態は、MBF生成装置の混合室の下流側にプレート部材を配置して混合室から導出される気泡(泡W)を、周方向の流れを遮断して吐出口34cへと排出するようにしたことが前記第1の実施形態と異なる構成であるため、同様の部分についてはその詳細な説明は省略する。
図6に示されるように、MBF生成装置90は、前記制御装置66により回転制御される電動モータ91を備えるとともに、水平方向に軸線の延びる該電動モータ91の回転軸(図示略)に一体回転するように連結された回転軸92を備え、更に電動モータ91のケース91aに固定されたケーシングとしての第1ケーシング93を備える。この第1ケーシング93は、回転軸92等の回転と干渉しないように内周側に内部空間S11を形成する内側フランジとしての円環状の蓋体93aを有するとともに、該蓋体93aの下部から中心線Oの径方向に沿って上方に穿設されて内部空間S11に連通する円形の給水口93bを有し、更に蓋体93aの上部から中心線Oの径方向に沿って下方に穿設されて内部空間S11に連通する円形の給気口93cを有する。給水口93bは、下端側で前記吸入口34a(図1参照)に連通して石鹸水が供給可能であり、給気口93cは、上端側で前記吸入口34b(図1参照)に連通して圧縮空気が供給可能である。従って、給水口93bを通じて供給された石鹸水と、給気口93cを通じて供給された圧縮空気とが内部空間S11において初期混合される。
なお、上記実施形態は以下のように変更してもよい。
・前記第1の実施形態において、液搬送部としての溝部83に代えて、例えば羽根板を採用してもよい。
・前記第1の実施形態において、第2筒部75a、第1固定側周壁75e,75f、第2固定側周壁75g,75h、第3筒部78a、第3固定側周壁78e,78f、第1可動側周壁82d,82e、第2可動側周壁84b,84c、第3可動側周壁84d,84eの外周面及び内周面の断面形状は、いわゆる真円である必要はなく、第1及び第2インペラー82,84の回転を阻害しない範囲で扁平していてもよい。
・各実施形態において、第1インペラー82の可動側周壁82d,82e、第2インペラー84の可動側周壁84b,84c、およびインペラー100の可動側周壁100e,100fは同じ長さであるが、これを異ならせてもよい。例えば、図9に示すように、可動側周壁100e,100fの長さが、中心軸Oから離れるにつれて長くなっており、可動側周壁100e,100fの先端部を結ぶ仮想線Mが、中心線Oに対して傾斜するように可動側周壁100e,100fを設けても良い。同様に、ケーシングの固定側周壁、例えば第1ケーシング93の固定側周壁93e,93fを、固定側周壁93e,93fの長さが中心軸Oから離れるにつれて長くなっており、固定側周壁93e,93fの先端部を結ぶ仮想線M’が中心線Oに対して傾斜するように、異なる長さとしてもよい。このような構成にすると、局所的な管損失抵抗が抑えられる。つまり、周速を速くすることかでき、泡生成の効率が良くなる。さらに、ケーシングあるいはインペラーを型でつくる場合、周壁に勾配を設けることにより金型から抜き易くなる。
・本発明は、浴槽10と独立した、循環ポンプ、泡流入部及び泡流出部を一体的に備えた構成であってもよい。
Claims (15)
- 円筒状の筒部と、該筒部に設けられた円環状の内側フランジと、前記筒部に対して同心円上に前記内側フランジから突出する少なくとも1つの円筒状の固定側周壁とを有するケーシングと、
前記筒部の中心線を中心に前記ケーシング内に回転自在に配置された円板部と、前記筒部及び該筒部に隣り合う前記固定側周壁間、並びに隣り合う前記固定側周壁間に配置され、前記筒部に対して同心円上に前記円板部から突出する少なくとも1つの円筒状の可動側周壁とを有するインペラーと、
前記各可動側周壁に対向して前記筒部及び前記固定側周壁にそれぞれ周方向に間隔をおいて突設され、前記中心線に沿って延在する複数の整流板と、
前記ケーシング及び前記インペラー間に形成され、前記中心線に沿った第1方向及び第1方向とは逆の第2方向に折り返す混合室とを備え、
前記インペラーの回転により前記混合室内に導入される気体及び液体を混合して気泡を生成することを特徴とする微細泡沫群生成装置。 - 請求項1に記載の微細泡沫群生成装置において、
前記中心線の方向で前記インペラーに対向する前記内側フランジの端面が平坦であることを特徴とする微細泡沫群生成装置。 - 請求項1又は2に記載の微細泡沫群生成装置において、
前記混合室の上流側に配置され、該混合室に導入される液体の流れを旋回させる旋回流路と、
前記旋回流路の中間部に配置され、前記混合室に導入される気体を供給する給気口と
をさらに備えたことを特徴とする微細泡沫群生成装置。 - 請求項3に記載の微細泡沫群生成装置において、
前記インペラーの回転方向は、前記旋回流路における液体の旋回する流れ方向の逆方向であることを特徴とする微細泡沫群生成装置。 - 請求項1~4のいずれか一項に記載の微細泡沫群生成装置において、
前記筒部は開口端を有し、前記微細泡沫群生成装置は、
前記混合室の上流側に配置され、前記筒部の前記開口端を閉塞する蓋体と、
前記筒部に対して同心円上に前記蓋体から突出する円筒状の蓋体側周壁と、
前記混合室の上流側で前記中心線を中心に前記ケーシング内に回転自在に配置された上流側円板部と、
前記筒部及び前記蓋体側周壁間に配置され前記筒部に対して同心円上に前記上流側円板部から突出する円筒状の上流側周壁とを有する上流側インペラーと、
前記筒部に対向して前記上流側周壁に周方向に間隔をおいて配設され、前記中心線に沿って延在する複数の液搬送部と、
前記ケーシング及び前記上流側インペラー間に形成され、前記中心線に沿った第1方向及び第1方向とは逆の第2方向に折り返して前記混合室に気体及び液体を導入する導入路とをさらに備え、
前記上流側インペラーの回転により前記導入路内の気体及び液体を拡散することを特徴とする微細泡沫群生成装置。 - 請求項1~5のいずれか一項に記載の微細泡沫群生成装置において、
前記混合室の下流側に配置されたプレート部材と、
前記プレート部材の下流に配置された吐出口とをさらに備え、
前記プレート部材が前記インペラーの外周側で前記混合室から導出される気泡を、周方向の流れを遮断して前記吐出口へと排出することを特徴とする微細泡沫群生成装置。 - 請求項1に記載の微細泡沫群生成装置において、
前記整流板は周方向において等間隔に突設され、台形状を呈することを特徴とする微細泡沫群生成装置。 - 請求項1に記載の徽細泡沫群生成装置において、
前記インペラーと同軸上に、少なくとも1つの円筒状の可動側周壁を有する第2インペラーをさらに備えたことを特徴とする徽細泡沫諾生成装置。 - 驕求碩8に記載の微細泡沫群生成装置において、
前記インペラーの可動側周壁と前記第2インペラーの可動側周壁が実質的に同径であることを特徴とする微細泡沫群生成装置。 - 請求項8に記載の微細泡沫群生成装置において.
前記インベラーの可動側周壁と前記第2インペラーの可動側周壁の間に形成された内側フランジと、
前記内側フランジの両側に延びる前記固定側周壁と
をさらに備えたことを特微とする微細泡沫群生成装置。 - 讃求項10に記載の微細泡沫群生成装置において、
互いに隣接する前記可動側周壁と前記固定側周壁との間の径方向での距離がほぼ一定であることを特黴とする微細泡沫群生成装置。 - 請求項10に記載の微細泡沫群生成撰置において、
前記微細泡沫群生成装置が複数の固定側周壁と複数の可動側周壁を備え、複数の固定側周壁と複数の可動側周壁の少なくとも一方の先端部を結ぶ線が、前記中心線に対して傾斜するように配置されていることを特徴とする微細泡沫群生成装置。 - 請求項12に記載の微細泡沫群生成醤置において、
前記複数の可動側周壁は、径方向外側に向かって長くなっていることを特徴とする微細泡沫群生成装置。 - 請求項12に記載の微細泡沫群生成装置において、
複数の前記固定側周壁は、径方向外側に向かって長くなっていることを特徴とする微細泡沫群生成装置。 - 空気及び界面活性剤含有液を混合して微細泡沫群からなる泡を生成することを特徴とする請求項1~14のいずれか一項に記載の微細泡沫群生成装置を備えた泡入浴装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080061680.8A CN102711968B (zh) | 2010-01-22 | 2010-01-22 | 微小泡沫群生成装置以及泡沫沐浴装置 |
JP2011550762A JP5488617B2 (ja) | 2010-01-22 | 2010-01-22 | 微細泡沫群生成装置及び泡入浴装置 |
PCT/JP2010/050837 WO2011089715A1 (ja) | 2010-01-22 | 2010-01-22 | 微細泡沫群生成装置及び泡入浴装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/050837 WO2011089715A1 (ja) | 2010-01-22 | 2010-01-22 | 微細泡沫群生成装置及び泡入浴装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011089715A1 true WO2011089715A1 (ja) | 2011-07-28 |
Family
ID=44306537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/050837 WO2011089715A1 (ja) | 2010-01-22 | 2010-01-22 | 微細泡沫群生成装置及び泡入浴装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP5488617B2 (ja) |
CN (1) | CN102711968B (ja) |
WO (1) | WO2011089715A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6714255B1 (ja) * | 2019-09-07 | 2020-06-24 | 株式会社フォーティー科研 | 泡発生装置と泡発生方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59166231A (ja) * | 1983-03-11 | 1984-09-19 | Kiyomatsu Ito | エマルジヨン製造機 |
JP2001514959A (ja) * | 1997-08-18 | 2001-09-18 | ナイコムド イメージング エーエス | 小胞の調製方法 |
JP2005246351A (ja) * | 2004-03-08 | 2005-09-15 | Irie Shingo | 水質浄化用微細気泡発生装置 |
JP2009142442A (ja) * | 2007-12-13 | 2009-07-02 | Aisin Seiki Co Ltd | 気泡微細化装置及び気泡微細化装置を用いた気泡発生システム |
JP2010046660A (ja) * | 2008-07-24 | 2010-03-04 | Aisin Seiki Co Ltd | 微細泡沫群生成装置及び泡入浴装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1390180A (en) * | 1971-11-19 | 1975-04-09 | Cowie Riding Ltd | Apparatus for mixing ingredients of synthetic plastics compositions |
US5087546A (en) * | 1988-12-07 | 1992-02-11 | Canon Kabushiki Kaisha | Device for continuously mixing powder and process for producing toner for developing electrostatic image |
JP2827278B2 (ja) * | 1989-05-22 | 1998-11-25 | 東陶機器株式会社 | 気泡発生浴槽における濾過装置 |
JP4766634B2 (ja) * | 2001-04-09 | 2011-09-07 | 栄司 西本 | 汚染液体処理装置 |
JP3631999B2 (ja) * | 2001-12-27 | 2005-03-23 | テック工業有限会社 | 微細気泡供給装置 |
JP4376888B2 (ja) * | 2006-11-08 | 2009-12-02 | ニッタ・ムアー株式会社 | 微細気泡発生装置 |
CN201337367Y (zh) * | 2008-11-14 | 2009-11-04 | 何衍锋 | 纳米气泡浴发生装置 |
-
2010
- 2010-01-22 CN CN201080061680.8A patent/CN102711968B/zh not_active Expired - Fee Related
- 2010-01-22 WO PCT/JP2010/050837 patent/WO2011089715A1/ja active Application Filing
- 2010-01-22 JP JP2011550762A patent/JP5488617B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59166231A (ja) * | 1983-03-11 | 1984-09-19 | Kiyomatsu Ito | エマルジヨン製造機 |
JP2001514959A (ja) * | 1997-08-18 | 2001-09-18 | ナイコムド イメージング エーエス | 小胞の調製方法 |
JP2005246351A (ja) * | 2004-03-08 | 2005-09-15 | Irie Shingo | 水質浄化用微細気泡発生装置 |
JP2009142442A (ja) * | 2007-12-13 | 2009-07-02 | Aisin Seiki Co Ltd | 気泡微細化装置及び気泡微細化装置を用いた気泡発生システム |
JP2010046660A (ja) * | 2008-07-24 | 2010-03-04 | Aisin Seiki Co Ltd | 微細泡沫群生成装置及び泡入浴装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5488617B2 (ja) | 2014-05-14 |
CN102711968B (zh) | 2014-07-23 |
JPWO2011089715A1 (ja) | 2013-05-20 |
CN102711968A (zh) | 2012-10-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20200292183A1 (en) | Indoor unit of air conditioner | |
JP5287573B2 (ja) | 微細泡沫群生成装置及び泡入浴装置 | |
CN102644997B (zh) | 空气交换机 | |
JP2022185790A (ja) | 微細気泡発生装置 | |
WO2011089715A1 (ja) | 微細泡沫群生成装置及び泡入浴装置 | |
JP3168366U (ja) | ポンプ羽根車 | |
CN101454569A (zh) | 固定叶片型液压电机 | |
JP2007024479A (ja) | 空調装置 | |
JP5183784B2 (ja) | ポンプ | |
JP5760205B2 (ja) | 混合方法、混合装置、及び混合流体 | |
CN213885949U (zh) | 混合机 | |
JP2010099574A (ja) | 混合装置及び混合システム | |
CN213913449U (zh) | 混合机 | |
CN205841310U (zh) | 一种气水混合泵 | |
JP2004353492A (ja) | 立軸形遠心ポンプおよびポンプ用羽根車 | |
JP6133805B2 (ja) | 船舶の摩擦低減装置 | |
JP2010255486A (ja) | ポンプ | |
JP5481346B2 (ja) | 遠心ポンプ | |
CN109631155B (zh) | 一种空调器 | |
JP2008298161A (ja) | 混合弁 | |
CN101903661A (zh) | 增压离心泵 | |
JP4459706B2 (ja) | 排水ポンプ | |
CN211575276U (zh) | 离心风轮、风道部件和空调器 | |
CN218379400U (zh) | 混流装置、混气系统、燃烧系统和热水器 | |
CN114109892B (zh) | 一种发泡泵 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080061680.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10843880 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011550762 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10843880 Country of ref document: EP Kind code of ref document: A1 |