JP2006136655A - Microbubble generating bathtub - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fine air bubble generating bathtub with an increased merchandise value, which is capable of efficiently supplying oxygen enriched air to a person inside a bathroom, reducing burdens on a cardiopulmonary function further, supplying the sufficient effect of recovering from fatigue, and setting the air amount of the oxygen enriched air to be sent to a microbubble generator and the bathroom to a desired value. <P>SOLUTION: The microbubble generating bathtub is provided with the microbubble generator A for dissolving air mixed in bath water flowing through a circulation conduit 4 in the bath water by an ejector 5, reducing the pressure and generating microbubbles inside a bathtub 1. An oxygen enriched air supply path 22 where the oxygen enriched air is supplied by an air sending means provided in an oxygen enricher 19 is provided, and the oxygen enriched air supply path 22 is branched into an ejector side flow path 26 and a bathroom side flow path 27. The bathroom side flow path 27 is made to communicate with the inside of the bathroom 38, and the ejector side flow path 26 is made to communicated with and connected to the ejector 5. The ejector side flow path 26 is provided with a flow rate adjusting means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a microbubble generating bathtub in which fine bubbles made of oxygen-enriched air are generated in a bathtub to obtain a heat retaining effect, a reduced burden on cardiopulmonary function, and a moisturizing effect.

  As a microbubble generation bathtub, what is shown, for example in patent document 1 is known. This is equipped with a fine bubble generator for generating fine bubbles in the bathtub by dissolving the air in the bath water sucked in from the bathtub and reducing the pressure of the bath water in which the air is dissolved and discharging it into the bathtub. Therefore, the fine foam generating device can generate fine bubbles having a long residence time in the bathtub to obtain a high thermal effect, and the bath water in the bathtub can be made so-called milky.

  Moreover, in the fine bubble generation bathtub shown in the above-mentioned Patent Document 1, an oxygen-enriched film and a fan are provided, and the so-called oxygen-enriched oxygen having a higher oxygen concentration than the atmosphere by passing the atmosphere through the oxygen-enriched film by the fan. An oxygen-enriching device that generates enriched air is provided, and the oxygen-enriched air generated by the oxygen-enriched device is mixed with the bath water sucked from the inside of the bathtub, so that the oxygen-enriched air becomes fine bubbles. Can be generated within. Thus, when oxygen-enriched air is generated in the bathtub as fine bubbles, the bather is encased in fine bubbles made of oxygen-enriched air, and skin respiration is promoted. Oxygen-enriched air can be supplied to the surface of the bath water in the bathtub, that is, near the mouth and nose of the bather, thereby reducing the burden on the cardiopulmonary function of the bather and lactic acid in the muscle The action of being decomposed by oxygen is promoted, and a fatigue recovery effect is also obtained. Moreover, in this case, since the oxygen concentration of the bath water in the bathtub is increased, moisture penetration into the stratum corneum is promoted by a high dissolved oxygen content, and the skin is moisturized. In other words, the fine bubbles of oxygen-enriched air are widely dispersed in the bath water in the bath and stayed for a long time, so that the amount of dissolved oxygen in the bath water in the bath is increased uniformly, and the oxygen pressure in the stratum corneum Oxygen partial pressure of bath water becomes high, and osmotic pressure is generated in any part of the body of bath water in the bath to promote water permeation, and dissolved oxygen acts on natural humectant (NMF) in the stratum corneum. The retention ability is improved, and dissolved oxygen acts on intercellular lipids in the stratum corneum to improve the moisture retention ability, thereby improving the moisture retention of the skin.

However, in the conventional example shown in the above-mentioned Patent Document 1, oxygen-enriched air is indirectly supplied into the bathroom by the fine bubbles generated in the bathtub repelling after rising to the surface of the bath water in the bathtub. However, as described above, since fine bubbles have a long residence time in the bath water, there is a problem that it is difficult to increase the oxygen concentration of the air near the surface of the bath water in the bath. In addition, there are cases where the body is washed at a washing place in the state where fine bubbles composed of the oxygen-enriched air are generated, but in this case, it is efficient for people in the bathroom not taking a bath There is a problem that oxygen-enriched air cannot be supplied.
JP-A-4-2347

  The present invention was invented in view of the above-mentioned conventional problems, and the oxygen enrichment device and the fine bubble generation device alleviate the burden on the cardiopulmonary function of the bather, give a fatigue recovery effect, Of course, the moisture retention can be improved, and at the same time, the oxygen-enriched air can be efficiently supplied to bathers and people in places other than the bathtub in the bathroom, and the burden of cardiopulmonary function can be further reduced. A sufficient fatigue recovery effect can be provided, and in addition, the amount of oxygen-enriched air sent to the fine bubble generator and the bathroom can be set to a desired value, and the fine bubble generator and oxygen enricher are provided. It is an object of the present invention to provide a fine bubble generating bathtub that can prevent excessive oxygen-enriched air from forming into a large bubble in the bathtub when it is driven and discharged into the bathtub, thereby enhancing the commercial value.

In order to solve the above-mentioned problems, a microbubble generating bathtub according to the present invention sucks in bath water from the suction port 2 and the circulation pipe 4 that communicates the suction port 2 and the discharge port 3 communicating with the bathtub 1 and this bath. The ejector 5 includes a circulation pump 6 provided in the circulation line 4 that discharges water from the discharge port 3, and an ejector 5 provided in the circulation line 4 that mixes air into the bath water flowing through the circulation line 4. A fine bubble generator A for generating fine bubbles in the bathtub 1 by dissolving the air mixed in the bath water flowing through the circulation line 4 in the bath water and depressurizing the bath water, and oxygen-enriched air And an oxygen-enriched air supply passage 22 through which oxygen-enriched air is supplied from the oxygen-enriched device 19 by an air supply means provided in the oxygen-enriched device 19. Ejected air supply path 22 is connected to ejector side flow path 26 and bathroom side flow path. 7, the bathroom-side flow path 27 is communicated with the bathroom 38, and the downstream end of the ejector-side flow path 26 is connected to the ejector 5 so as to be mixed into the circulation pipe 4 by the ejector 5. The air is oxygen-enriched air sent from the oxygen enricher 19, and the flow rate adjusting means for adjusting the flow rate of air supplied to the ejector 5 side is provided in the ejector side flow path 26. By having the configuration, the circulation pump 6 of the fine bubble generating device A and the air supply means of the oxygen enrichment device 19 are driven, and the air supply means supplies the microbubble generation device A via the oxygen-enriched air supply path 22. Oxygen-enriched air can be supplied to the ejector 5 and the bathroom 38 at the same time. As a result, the microbubble generator A can generate microbubbles made of oxygen-enriched air supplied from the oxygen enricher 19 in the bath water in the bathtub 1, reducing the burden on the cardiopulmonary function as in the conventional example. In addition, the effect of relieving fatigue and improving the moisture retention of the skin can be obtained, and at the same time, oxygen-enriched air is directly supplied from the bathroom side channel 27 into the bathroom 38. The burden on the cardiopulmonary function of the person who is in the bathroom can be further reduced, and a sufficient fatigue recovery effect can be given to the person in the bathroom 38. Further, in the present invention, since the flow rate adjusting means for adjusting the flow rate of air supplied to the ejector 5 side is provided in the middle of the ejector side flow channel 26, the oxygen enrichment sent to the ejector side flow channel 26 and the bathroom side flow channel 27. The amount of air can be set to a desired value, and when the fine bubble generator A and the oxygen enricher 19 are driven by this, the excess oxygen enriched air becomes large bubbles in the bathtub 1. The product value can be increased by preventing the product from being discharged.

  It is also preferable that the flow rate adjusting means is constituted by an orifice 35, and the above-described effects can be realized with a simple configuration.

  In the present invention, it is possible to reduce the burden on the cardiopulmonary function, obtain the fatigue recovery effect, and improve the moisture retention of the skin by the microbubble generator that generates microbubbles made of oxygen-enriched air in the bathtub. Of course, oxygen-enriched air can be efficiently supplied to bathers and people in places other than bath tubs at the same time, which can further reduce the burden of cardiopulmonary function and provide a sufficient fatigue recovery effect. Furthermore, the amount of oxygen-enriched air sent to the microbubble generator and the bathroom can be set to a desired value, and surplus in the bathtub when the microbubble generator and oxygen enricher is driven. The oxygen-enriched air can be prevented from being discharged into the bathtub as large bubbles, thereby increasing the commercial value.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. As shown in FIG. 2, a floor pan 39 is provided at the bottom of a bathroom 38 formed of a unit bathroom, and the bathtub 1 is installed on the floor pan 39. As shown in FIGS. 2 and 6, etc., the bathtub 1 has a fine structure that generates fine bubbles in the bathtub 1 by dissolving the air taken from the outside into the bath water sucked from the bathtub 1 and reducing the pressure of the bath water. A bubble generating apparatus A is provided, and a jet bath apparatus B that injects air into the bath water sucked from the bathtub 1 and jets the bubble bath containing air into the bathtub 1 in the bathtub 1 of this example. Is provided. 2, illustration of an oxygen-enriched air supply path 22 described later is omitted, and illustration of a bathroom-side flow path 27 described later is omitted in FIG.

  As shown in FIG. 1, the fine bubble generating apparatus A mainly includes a suction port 2, a discharge port 3, a circulation pipe 4, an ejector 5, a circulation pump 6, and a dissolution tank 7. Both the suction port 2 and the discharge port 3 are provided in the lower part of the side wall 1a of the bathtub 1 and communicate with the inside of the bathtub 1. The bath water in the bathtub 1 is sucked from the suction port 2, and the bathtub 1 is discharged from the discharge port 3. The bath water containing fine bubbles can be discharged inward. The suction port 2 and the discharge port 3 are communicated with each other through a circulation line 4 piped outside the bathtub 1. A circulation pump 6 is disposed in the middle of the circulation line 4. By driving the circulation pump 6, bath water in the bathtub 1 is sucked from the suction port 2 and discharged from the discharge port 3 into the bathtub 1. It has become.

  An ejector 5 is provided upstream of the circulation pump 6 in the circulation line 4. As shown in FIG. 3, the ejector 5 is a cylindrical main body 10 having an inlet 8 into which bath water flowing from the circulation pipe 4 flows in at one end and an outlet 9 from which the bath water flows out at the other end. The subject is configured. A diameter-reduced cylindrical portion 11 that gradually decreases in diameter from the part of the inner surface of the main body portion 10 toward the outlet 9 side is integrally projected toward the outlet 9 side. A downstream end opening 11 opens toward the outlet 9. An air suction portion 12 formed of an annular space is formed between the outer peripheral surface of the reduced diameter tubular portion 11 and the inner peripheral surface of the main body portion 10, and from a location corresponding to the air suction portion 12 of the main body portion 10. Has an air suction port 13 communicating with the air suction portion 12 projecting outward. Then, when the bath water passes through the ejector 5 by driving the circulation pump 6, air is taken into the air suction portion 12 from the air suction port 13 and mixed into the bath water.

  Further, as shown in FIG. 1, a dissolution tank 7 is arranged on the downstream side of the circulation pump 6 and the ejector 5 in the circulation line 4, and the air mixed in the ejector 5 is dissolved in the bath water. In the dissolution tank 7, air is dissolved in the bath water by passing the bath water through a meandering path. The discharge port 3 is composed of a nozzle that discharges the bath water in which the air is dissolved, and the dissolved air becomes fine bubbles by reducing the pressure of the bath water in the discharge port 3, so that the bath water containing the fine bubbles is put in the bathtub. 1 can be discharged into the inside.

  On the other hand, as shown in FIG. 4, the jet bath apparatus B mainly includes a suction port 14, a jet port 15, a circulation pipe 37, a jet pump 16, an air intake port 17, and an air supply path 18. Both the suction port 14 and the spout 15 are provided in the lower part of the side wall 1a of the bathtub 1 and communicate with the inside of the bathtub 1. The bath water in the bathtub 1 is sucked from the suction port 14 and is relatively large from the spout 15. Bath water containing bubbles (hereinafter referred to as large bubbles) can be ejected into the bathtub 1. The suction port 14 and the jet port 15 are communicated with each other through a circulation line 37 piped outside the bathtub 1. A jet pump 16 is arranged in the middle of the circulation pipe 37, and the jet water is strongly jetted from the jet outlet 15 by driving the jet pump 16. An air intake port 17 is provided in the flange 1 b of the bathtub 1, and the air intake port 17 communicates with the jet port 15 through an air supply path 18. The ejection port 15 is provided with an ejector portion, and by taking out bath water from the ejection port 15, the air taken in from the air intake port 17 through the air supply path 18 is entrained in the bath water, and the bath contains large bubbles. It is designed to spout water.

  As shown in FIGS. 1 and 4, an oxygen enricher 19 that generates so-called oxygen-enriched air in which the oxygen concentration is increased based on the atmosphere outside the bathroom 38 is installed on the ceiling of the bathroom 38. The oxygen enrichment device 19 is mainly composed of an oxygen enrichment membrane unit 20 composed of a flat membrane of an organic polymer and a vacuum pump 21, and oxygen enriched air using a difference in velocity of molecules passing through the membrane. Is what you get. When air in the atmosphere is taken in by suction of the vacuum pump 21 and the air is passed through the oxygen-enriched membrane unit 20, oxygen passes through the flat membrane at a faster rate than nitrogen, and the proportion of oxygen is thereby increased. Oxygen-enriched air is obtained that is higher than normal air (about 21% oxygen, about 79% nitrogen). In this embodiment, the oxygen enricher 19 is configured to generate oxygen-enriched air in which the proportion of oxygen is approximately 30% (nitrogen is approximately 70%), and the oxygen enricher 19 is driven. Are set so that the air amount per unit time of oxygen-enriched air supplied to an oxygen-enriched air supply path 22 described later becomes a constant value (2.0 liters / min).

  One end of an oxygen-enriched air supply path 22 is connected to the discharge side of the vacuum pump 21 of the oxygen enricher 19, and the oxygen enricher 19 is connected by the vacuum pump 21 via the oxygen-enriched air supply path 22. The oxygen-enriched air obtained in (1) can be selectively supplied to the ejector 5 and the bathroom 38 of the fine bubble generating device A or the air intake port 17 of the jet bath device B. That is, in this example, the vacuum pump 21 is used as an air supply means.

  The oxygen-enriched air supply passage 22 is branched into two air passages 23 and 24 at a branch point A. At the branch point A, the flow of oxygen-enriched air sent from the oxygen enricher 19 is supplied to one air. An electromagnetic valve unit 25 that switches between a flow toward the path 23 and a flow toward the other air path 24 is provided. As shown in FIG. 4, the downstream end of one of the two air passages 23, 24 is in the middle of the air supply passage 18 of the jet bath apparatus B or to the air intake port 17 (in the illustrated example, the air supply passage 18). Communication connection is established. The other air passage 24 is further branched into two branch passages, an ejector-side passage 26 and a bathroom-side passage 27, in the middle as shown in FIG.

  The downstream end of the bathroom-side channel 27 is connected to a blowout port (not shown) that directly communicates with the bathroom 38. The outlet is preferably provided to open downward on the lower end surface of the apron of the bathtub 1 or the lower surface of the counter in the washing area. In this way, the outlet can be made invisible to people in the bathroom 38, and Condensation water generated in the bathroom side channel 27 does not flow down the walls, etc., and drains such as drainage grooves and drainage ports located below the lower end surface of the apron of the bathtub 1 and the lower surface of the counter in the washing place. Can flow down directly to the section.

  Further, the downstream end of the ejector side flow path 26 is connected to the air suction port 13 of the ejector 5. The ejector side flow path 26 includes a connecting member 29, an upstream portion 30 upstream of the connecting member 29, and a downstream portion 31 downstream of the connecting member 29. As shown in FIG. 5, the connecting member 29 has connecting pipe portions 32 and 33 connected to both the upstream portion 30 and the downstream portion 31 at both ends thereof, and a bottomed cylindrical orifice member 34 is disposed inside. ing. In the center of the bottom portion 34a of the orifice member 34, an orifice 35 having a small diameter is provided on the downstream side. The orifice member 34 is a connecting pipe portion in which the orifice 35 formed in the bottom portion 34a is connected to the upstream portion 30. 32 is accommodated in the connecting member 29 so as to face the downstream end opening. In the orifice 35, the amount of oxygen-enriched air supplied to the ejector 5 is larger than the amount of oxygen-enriched air that can be dissolved in the bath water by the fine bubble generator A per unit time. The amount of air supplied to the ejector 5 side is adjusted so as to be a predetermined value that is small, and in this embodiment, the orifice 35 is used as an air flow rate adjusting means. Further, as shown in FIG. 5, the orifice member 34 in the illustrated example has an outer diameter B larger than the inner diameter C of the upstream portion 30, and the inner diameter D of the portion of the connecting member 29 that houses the orifice 35 is the inner diameter H of the upstream portion 30. The diameter is larger than. The oxygen-enriched air supply path 22 is composed of a tube except for the connecting member 29, and has the same flow path area in the length direction.

  A control box 40 is provided on the ceiling of the bathroom 38 as shown in FIG. 2, and the control box 40 controls the fine bubble generating device A, the oxygen enrichment device 19, the jet bath device B, and the electromagnetic valve unit 25. It can be done. The flange 1b of the bathtub 1 is provided with an operation switch 41 for operating the fine bubble generating device A and the jet bath device B.

  Then, the operation switch 41 is operated to drive the circulation pump 6 of the fine bubble generator A shown in FIG. 1 and the vacuum pump 21 of the oxygen enricher 19 (in this case, the jet bath device B is not driven). At the same time, when the flow of oxygen-enriched air sent from the oxygen enricher 19 by the solenoid valve unit 25 is switched to the flow toward the air passage 24 of the air passages 23 and 24, it is indicated by a broken arrow in FIG. As described above, oxygen-enriched air is simultaneously supplied from the oxygen enricher 19 to the ejector-side channel 26 and the bathroom-side channel 27 of the oxygen-enriched air supply channel 22 by the vacuum pump 21.

  The oxygen-enriched air sent to the ejector-side flow path 26 becomes fine bubbles and is discharged into the bathtub 1 by the fine bubble generator A as described below. That is, under the control of the vacuum pump 21, the circulation pump 6 and the solenoid valve unit 25, the bath water in the bathtub 1 is sucked from the suction port 2 as shown by the solid line arrow in FIG. 1, and this bath water passes through the ejector 5. As a result, the oxygen-enriched air sent by the vacuum pump 21 of the oxygen-enriching device 19 is mixed into the bath water flowing through the circulation line 4, and the bath water mixed with this oxygen-enriched air passes through the circulation pump 6. Then, the oxygen-enriched air is dissolved in the bath water by being sent to the dissolution tank 7, and the bath water in which the oxygen-enriched air is dissolved is discharged under reduced pressure at the discharge port 3. The bath water containing fine bubbles is discharged in a milky form. Thereby, the bather in the bathtub 1 is wrapped in fine bubbles, and a thermal effect is obtained. In addition, since the bather is encased in fine bubbles made of oxygen-enriched air, skin respiration is promoted. In this case, oxygen is also enriched on the surface of the bath water in the bathtub 1, that is, near the bather's mouth and nose. Air is supplied, whereby the burden of cardiopulmonary function is reduced, and the action of decomposing lactic acid in muscle by oxygen is promoted, resulting in a fatigue recovery effect. Further, in this case, since the oxygen concentration of the bath water is increased, the oxygen gas permeability to the bather's skin is increased, the moisture permeability is increased, and the skin's stratum corneum is moisturized.

  When bathing by driving the microbubble generator A as described above, the oxygen-enriched air supplied to the bathroom-side flow path 27 is simultaneously connected to the bathroom 38 through the blowout port directly communicating with the bathroom 38 described above. 38, the bathroom 38 is filled with oxygen-enriched air, and the oxygen concentration of the air near the surface of the bath water in the bathtub 1 can be efficiently increased. In this case, the oxygen-enriched air is efficiently supplied to a person who is washing his / her body in the bathroom 38 or the like. Therefore, the burden on the cardiopulmonary function of the bather or a person in a place other than the bathtub 1 in the bathroom 38 is further reduced, and a further fatigue recovery effect is provided.

  In the present invention, since the flow rate adjusting means is provided in the middle of the ejector side flow path 26 as described above, the following advantages are obtained. That is, in the case where the flow rate adjusting means (orifice 35) for adjusting the air flow rate is not provided in the middle of the ejector side flow path 26 as in the present invention, the oxygen-enriched air sent to the ejector side flow path 26 is Since it is sucked by the bath water flowing through the circulation pipe 4 and mixed in the ejector 5, the amount of oxygen-enriched air sent to the ejector-side flow path 26 cannot be set to a small desired value. For this reason, oxygen-enriched air is excessively supplied to the circulation line 4, and it becomes impossible to dissolve all the oxygen-enriched air in the bath water by the fine bubble generator A. As a result, the excess oxygen-enriched air is large. It becomes a bubble and is discharged into the bathtub 1 to reduce the commercial value, or the amount of oxygen-enriched air sent to the bathroom-side channel 27 is reduced, so that the oxygen concentration in the bathroom 38 does not become a desired value. Such a problem may occur. However, in the present invention, as described above, since the flow rate adjusting means is provided in the middle of the ejector side flow path 26, the amount of oxygen-enriched air supplied to each of the ejector side flow path 26 and the bathroom side flow path 27 is adjusted. A desired value can be obtained. Specifically, the amount of oxygen-enriched air sent to the ejector-side channel 26 through the orifice 35 is 0.5 liter / min, and the amount of oxygen-enriched air sent to the bathroom-side channel 27 is the ejector-side channel. In this case, 0.5 l / min, which is the amount of air supplied to the ejector-side flow path 26, is set by the fine bubble generator A to bath water. The predetermined value is smaller than the amount of air per unit time that can be dissolved therein. In addition, when the fine bubble generating device A is driven as described above, it is possible to prevent excessive oxygen-enriched air from being formed into large bubbles in the bathtub 1 and discharged into the bathtub 1, thereby increasing the commercial value. Furthermore, since the drive state of the circulation pump 6 varies, the amount of air supplied to the ejector 5 is unlikely to be a desired value. In the present invention, the flow rate adjusting means including the orifice 35 is provided as described above. Therefore, it is possible to stabilize the supply amount of oxygen-enriched air to the ejector 5, which is likely to change according to the driving state of the circulation pump 6, thereby excessively supplying oxygen-enriched air into the circulation line 4. Thus, the circulation pump 6 can be prevented from causing air biting, and the supply amount of the oxygen-enriched air into the circulation line 4 is so small that the above-described effects on the bather cannot be provided. It can be prevented from occurring. Further, in the present embodiment, the above effect can be realized with a simple configuration by using the orifice 35 as the flow rate adjusting means.

  In this embodiment, the operation switch 41 is operated to drive the jet pump 16 of the jet bath apparatus B shown in FIG. 4 (in this case, the fine bubble generating apparatus A is not driven) and the vacuum pump 21 of the oxygen enrichment apparatus 19. And at the same time, the flow of oxygen-enriched air sent from the oxygen enricher 19 by the solenoid valve unit 25 is switched to the flow toward the air passage 23, so that the oxygen enrichment produced by the oxygen enricher 19 is switched. The entire amount (2.0 liters / min) of the liquefied air is supplied to the jet bath apparatus B, and a jet jet having large bubbles made of oxygen-enriched air can be ejected from the jet outlet 15 toward the bathtub 1. It has become. That is, as shown by the arrow in FIG. 4, the bath water in the bathtub 1 is sucked from the suction port 14 by the above control, and the bath water is ejected from the jet port 15 through the jet pump 16. The air taken in from the air intake port 17 is entrained in the bath water, and the bath water entrained with bubbles is blown out so as to strike the bather, and the bather is massaged. When air is taken in from the intake port 17, since oxygen-enriched air is supplied to the air supply path 18 or the air intake port 17, bubbles containing oxygen-enriched air are ejected, whereby oxygen-enriched air is generated. It drifts in the vicinity of the bather's mouth and nose, so that the bather can take a comfortable bath with ease of lung breathing. Further, the large bubbles made of oxygen-enriched air contained in the jet jet ejected into the bathtub 1 by the jet bath apparatus B rises up to the surface of the bath water in the bathtub in a short time, and is thereby rejected. Air other than the vicinity of the bath water in the bath and the vicinity of the bathtub 1 of the bathroom 38 can be efficiently converted to a high oxygen concentration air, reducing the burden on the cardiopulmonary function of bathers and people in the bathroom 38 not bathing in the bathtub 1 As a result, a fatigue recovery effect is provided.

  In this example, an example in which the oxygen-enriched air supply path 22 is branched into two air paths 23 and 24 at a branch point upstream from the position where the oxygen-side air supply path 22 is branched into the ejector-side flow path 26 and the bathroom-side flow path 27 is shown. However, the air passage 23 may not be provided. That is, in this case, the air supplied to the circulation pipe 4 of the jet bath apparatus B is composed only of the air in the bathroom 38 taken in from the air intake port 17. In this case, the jet bath apparatus B may not be provided. In this embodiment, the flow rate adjusting means is configured by the orifice 35. For example, the amount of air supplied to the ejector 5 is more than the amount of air per unit time that can be dissolved in the bath water by the microbubble generator A. Alternatively, the flow rate adjusting means may be configured by a valve or the like that makes the flow area of the ejector side flow path 26 variable within the range of a small value. In this case, the flow rate adjusting means is supplied to the ejector side flow path 26 and the bathroom side flow path 27. The proportion of oxygen-enriched air that is produced can be arbitrarily changed.

It is explanatory drawing explaining operation | movement of the microbubble generator which shows an example of embodiment of this invention. It is a partially cutaway perspective view of a bathroom same as the above. It is a partially abbreviated sectional view showing a circulation pipe line and an ejector side flow path of the fine bubble generator same as above. It is explanatory drawing explaining operation | movement of a jet bath apparatus same as the above. It is sectional drawing of a connection member same as the above. It is the perspective view which abbreviate | omitted illustration of the bathroom and bathroom side flow path of a microbubble generation bathtub same as the above.

Explanation of symbols

A Fine bubble generator 1 Bath 2 Suction port 3 Discharge port 4 Circulation line 5 Ejector 6 Circulation pump 13 Air suction port 19 Oxygen enricher 22 Oxygen-enriched air supply channel 26 Ejector side channel 27 Bathroom side channel 35 Orifice

Claims (2)

  A circulation line that connects the suction port and the discharge port communicating with the inside of the bathtub, a circulation pump that is provided in the circulation line that sucks bath water from the suction port and discharges the bath water from the discharge port, and flows through the circulation line An ejector provided in a circulation line for mixing air into the bath water, and dissolving the air mixed in the bath water flowing through the circulation line by the ejector in the bath water and decompressing the bath water so as to reduce the pressure in the bath water. Oxygen-enriched air is generated from the oxygen-enriched apparatus by an oxygen-enriched apparatus that generates oxygen-enriched air and an air supply means provided in the oxygen-enriched apparatus. Provided with an oxygen-enriched air supply path, branching the oxygen-enriched air supply path into an ejector-side flow path and a bathroom-side flow path, allowing the bathroom-side flow path to communicate with the bathroom, Connect the downstream end to the ejector The air mixed in the circulation pipe by the ejector is oxygen-enriched air sent from the oxygen enricher, and a flow rate adjusting means for adjusting the air flow rate supplied to the ejector side is provided in the ejector side flow path. A microbubble generating bath characterized by comprising:   2. The fine bubble generating bathtub according to claim 1, wherein the flow rate adjusting means comprises an orifice.

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