JP2010162149A - Fine air bubble generating device for bathtub and method of generating fine air bubbles for bathtub - Google Patents

Abstract

An inexpensive microbubble generator for bathtubs and microbubbles for bathtubs capable of increasing the number of microbubbles by mixing microbubbles such as microbubbles with hot water in the bathtub and circulating hot water containing microbubbles A generator is provided.
A microbubble generator for a bathtub 10 includes a microbubble generator 20 that generates microbubbles H by depressurizing and releasing the pressure of hot water L connected to the bathtub 2 and supplied to the bathtub 2, and the bathtub 2 A circulating section for passing the hot water L containing the microbubbles H in the microbubble generator 20 again and sending it into the bathtub 2, and mixing the microbubbles such as microbubbles with the hot water in the bathtub. Increase the number of microbubbles by circulating hot water containing.
[Selection] Figure 1

Description

  The present invention relates to a microbubble generating device for a bathtub and a microbubble generating method for a bathtub, and more particularly to a microbubble generating device for a bathtub and a microbubble generating method for a bathtub that mix microbubbles when hot water is supplied into the bathtub.

  Patent Document 1 describes that an oxygen enrichment device is provided inside a hot water supply device, and high-concentration oxygen is mixed into the hot water of a bath heated using the oxygen enrichment device. In this hot water supply apparatus, high-concentration oxygen generated in the oxygen enrichment apparatus is jetted into the bathtub together with hot water so that oxygen bubble bathing can be performed. Microbubble generators are commercially available for home use and pet shops.

JP-A-2005-212393

  However, the oxygen-enriched hot water supply apparatus described in Patent Document 1 merely supplies oxygen bubbles into the hot water in the bathtub, and only exerts the relaxation effect of the bather. It is.

  The microbubble generator described above is a swivel type and requires a high-pressure pump, so it is very expensive and difficult to spread.

  The present invention has been made in view of the above, and an object thereof is to increase the number of microbubbles by mixing microbubbles such as microbubbles with hot water in a bathtub and circulating hot water containing microbubbles. The present invention provides an inexpensive microbubble generator for bathtubs and a method for generating microbubbles for bathtubs.

  The microbubble generator for a bathtub according to the present invention includes a microbubble generator that is connected to a bathtub and generates microbubbles by depressurizing and releasing the pressure of hot water supplied to the bathtub, and the microbubbles in the bathtub And a circulating section that passes the hot water containing the water again through the microbubble generator and sends it into the bathtub.

  The method for generating microbubbles for a bathtub according to the present invention is a method for generating microbubbles for a bathtub in which microbubbles are included in hot water supplied into the bathtub, and a microbubble generator is connected to the bathtub, and the microbubbles are generated. The microbubbles are mixed with the hot water by passing the hot water through a vessel, and the circulating part passes the hot water containing the microbubbles in the bath again through the microbubble generator and sends it into the bath. And

  Advantageous Effects of Invention According to the present invention, an inexpensive microbubble generator for a bathtub and a bathtub that can increase the number of microbubbles by mixing microbubbles such as microbubbles with hot water in the bathtub and circulating hot water containing microbubbles. A microbubble generator for use can be provided.

It is a figure which shows preferable embodiment of the microbubble generator for bathtubs of this invention. It is sectional drawing which shows the structural example of the aspirator shown in FIG. It is a figure which shows another embodiment of this invention. FIG. 4 (a) shows the number of microbubbles and the particle size distribution when hot water L supplied from the hot water supply section shown in FIG. 1 has passed for one day, and FIG. 4 (b) shows the distribution of FIG. It is a figure which shows the number of microbubbles in a bathtub, and distribution of a particle size when the hot water L containing the microbubbles H which let the aspirator to show pass again for one day pass.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a preferred embodiment of a microbubble generator for bathtubs according to the present invention.

  The bathtub microbubble generator 10 shown in FIG. 1 is connected between the hot water supply unit 1 and the bathtub 2. The bathtub microbubble generator 10 can mix a large number of microbubbles such as microbubbles when hot water L is supplied into the domestic bathtub 2, for example, and contains a large number of microbubbles H. It is an apparatus that can further increase the number of microbubbles in the hot water L by circulating L.

  The bathtub microbubble generator 10 shown in FIG. 1 includes a water supply detection sensor 11, a microbubble generator 20, two check valves 12 and 13, an electric pump 14, and a case 15.

  The hot water supply unit 1 is connected to the water supply detection sensor 11 via a valve 16, a connection part 17 of the case 15, and a pipe 18. The water supply detection sensor 11 is connected to the inlet 19 of the microbubble generator 20 via the check valve 12 and the pipe 33. The outlet portion 28 of the microbubble generator 20 is connected to the discharge nozzle 35 via the pipe 36 via the connection portion 34 of the case 15. The discharge nozzle 35 is located in the bathtub 2.

  Further, the pipe 33 shown in FIG. 1 is connected to the outlet 14 </ b> C of the electric pump 14 via the pipe 37 and the check valve 13. The inlet portion 14 </ b> B of the electric pump 14 is connected to the water supply member 50 via the connection portion 38 of the case 15 and the pipe 49. The water supply member 50 is located in the bathtub 2 in order to suck and collect the hot water L in the bathtub 2.

  Preferably, the connecting part 17 of the case 15 shown in FIG. 1 can removably connect the pipe 18, the connecting part 34 of the case 15 can removably connect the pipe 36, and the connecting part 38 of the case 15 can be connected to the pipe. 49 can be detachably connected. Thereby, the connection part 17, 34, 38 can be used to newly install or replace the bathtub microbubble generator 10 between the hot water supply part 1 and the bathtub 2, and the actual installation work or replacement work can be performed. There is an advantage that can be easily and easily performed.

  The water supply detection sensor 11 shown in FIG. 1 is a sensor that detects whether hot water L is supplied from the hot water supply unit 1 to the microbubble generator 19 and the bathtub 2 through the pipe 18. As the water supply detection sensor 11, a flow sensor, A pressure sensor or the like can be used. The check valve 12 prevents the hot water L from flowing back from the microbubble generator 20 side to the water supply detection sensor 11 side, or the hot water L from flowing back from the pipe 37 side to the water supply detection sensor 11 side. Similarly, the check valve 13 prevents the hot water L from flowing backward from the pipe 33 side to the outlet portion 14C side of the electric pump 14.

  In the bathtub microbubble generator 10 shown in FIG. 1, the pipe 18, the water supply detection sensor 11, the check valve 12, the pipe 33, the microbubble generator 20, the pipe 36, and the discharge nozzle 35 constitute a hot water supply path P <b> 1. . In addition, the water supply member 50, the pipe 49, the electric pump 14, the check valve 13, the pipe 37, the pipe 33, the microbubble generator 20, the pipe 36, and the discharge nozzle 35 are a circulating hot water supply path P2 for feedback as an example of a circulation unit. Is configured.

  A microbubble generator 20 shown in FIG. 1 is an apparatus for mixing a large number of microbubbles H during hot water supply with water (hot water) L such as tap water supplied from the hot water supply unit 1.

  FIG. 2 is a cross-sectional view showing a structural example of the microbubble generator 20 shown in FIG.

  As shown in FIG. 2, the microbubble generator 20 is a cylindrical member made of, for example, metal or plastic, and the microbubbles H are removed from the hot water L supplied from the hot water supply unit 1 of FIG. Can be used as a microbubble generator to be included by mixing. The microbubble generator 20 has a first cylindrical portion 21 and a second cylindrical portion 22, and the first cylindrical portion 21 and the second cylindrical portion 22 are continuously connected in series along the axial direction CL. Is formed.

  As shown in FIG. 2, the first cylindrical portion 21 has a water passage portion 23 inside, and a tapered member 24 is fixed to the water passage portion 23. The taper member 24 is formed to be tapered so as to become gradually smaller along the water flow direction T. The taper member 24 has a water outlet 26, and a member 25 that forms a swirling flow of water along the central axis CL is fixed in the taper member 24. An inner diameter D1 of the water outlet 26 of the tapered member 24 is set smaller than an inner diameter D2 of the inlet portion 19 of the first tubular member 21.

  As shown in FIG. 2, the second cylindrical member 22 has a water inlet 27 and an outlet portion 28, and the inner diameter of the second cylindrical member 22 is the water inlet 27 and outlet portion. It gradually increases along the water flow direction T toward 28. The inner diameter D3 of the smallest water inlet 27 of the second cylindrical member 22 is the same as the inner diameter D1 of the water outlet 26 of the tapered member 24, and the inner diameter of the largest outlet portion 28 of the second cylindrical member 22 is. D4 is set larger than the inner diameter D3 of the second cylindrical member 22.

  Thereby, as shown in FIG. 1, when the hot water L from the hot water supply unit 1 flows into the inlet 19 of the first cylindrical portion 21 of the microbubble generator 20 along the water flow direction T, the hot water L is A swirl flow is obtained by passing the member 25 that forms a swirl flow of water. At the center of the swirling flow of the hot water L, there is a vacuum state, and the air dissolved in the hot water L and the air that has flowed in become fine bubbles and pass through the water outlet 26 and the water inlet 27 of the tapered member 24. Thus, a large number of microbubbles H are mixed with the hot water L. That is, the microbubble generator 20 can generate the microbubbles H by decompressing the hot water L supplied to the bathtub 2 and releasing the pressure. Therefore, hot water L containing a large number of microbubbles H can be supplied into the bathtub 2 through the pipe 36 and the discharge nozzle 35.

  The valve 16 shown in FIG. 1 can be opened and closed by a command from the control unit 100. When the water supply detection sensor 11 detects that the hot water L from the hot water supply unit 1 is supplied through the pipe 18, the water supply detection sensor 11 supplies a detection signal S to the control unit 100, and the control unit 100 detects this detection signal. The electric pump 14 is stopped while S is supplied. When the water supply detection sensor 11 detects that the hot water L from the hot water supply unit 1 is not supplied through the pipe 18, the water supply detection sensor 11 does not supply the detection signal S to the control unit 100, and the control unit 100 The electric pump 14 is operated while the detection signal S is not supplied.

  Next, a method for generating microbubbles for bathtubs will be described using the microbubble generator for bathtubs 10 described above.

  When the control unit 100 shown in FIG. 1 opens the valve 16 to operate the hot water supply unit 1, the water (hot water) L passes through the bubble 16, the pipe 18, the water supply detection sensor 11, and the check valve 12 from the hot water supply unit 1. Enters the inlet 19 of the bubble generator 20.

  When the hot water L flows into the inlet portion 19 of the microbubble generator 20 along the water flow direction T shown in FIG. 2, the hot water L turns into a swirl flow through the member 25 that forms a swirl flow of water, The air dissolved in the air and the air that has flowed into become microbubbles that pass through the water outlet 26 and the water inlet 27 of the taper member 24 and are released from the pressure toward the outlet 28. Mixed with hot water L. For this reason, hot water L containing a large number of microbubbles H can be supplied into the bathtub 2 from the outlet portion 28 through the pipe 36 and the discharge nozzle 35. While the hot water supply unit 1 continues to supply hot water, since the hot water L flows through the pipe 18, the water supply detection sensor 11 continues to supply the detection signal S to the control unit 100. In the embodiment of the present invention, there is an advantage that micro bubbles (bubbles) can be generated in the bathtub 2 through one path by pipe connection from the hot water supply unit 1 to the micro bubble generator 20.

  Next, when hot water L having a predetermined depth is supplied into the bathtub 2, the hot water supply unit 1 stops the supply of the hot water L with a timer or the like. For this reason, since hot water L does not flow through the pipe 18, the water supply detection sensor 11 does not supply the detection signal S to the control unit 100. For this reason, the control unit 100 starts the operation of the electric pump 14.

  Thereby, the electric pump 14 includes the water supply member 50, the pipe 49, the electric pump 14, the check valve 13, the pipe 37, the pipe 33, the microbubble generator 20, the pipe 36, and the like that constitute the feedback circulating hot water supply path P2. Through the discharge nozzle 35, the hot water L containing the microbubbles H in the bathtub 2 is collected and circulated again, so that a larger number of microbubbles H can be actively added to the hot water L containing the microbubbles H in the bathtub. Can be included.

  Next, another embodiment of the present invention will be described with reference to FIG.

  FIG. 3 shows another example of the structure of the microbubble generator. The structure of the microbubble generator 20B is substantially the same as the structure of the microbubble generator 20 shown in FIG. The difference is that a valve 40 is provided. As described above, the microbubble generator 20B shown in FIG. 3 can be called an aspirator because the introduction air amount adjustment valve 40 is provided.

  The intake air amount adjustment valve 40 shown in FIG. 3 has an intake pipe 41 and a sphere 42 arranged in the intake pipe 41. By moving the spherical body 42 in the intake pipe 41, the air is introduced or the inflow of air is stopped, and the amount of introduced air is optimally adjusted according to the amount of water flowing into the microbubble generator 20B. Can do. That is, when the flow rate of hot water L is large, the number of micro bubbles is increased, and when the flow rate of hot water L is small, the number of micro bubbles is decreased.

  4A shows the number of microbubbles and the particle size distribution when hot water L supplied from the hot water supply unit 1 shown in FIG. 1 has passed for one day, and FIG. The hot water L containing the microbubbles H in the bathtub 2 shown in FIG. 3 shows the number of microbubbles and the particle size distribution in the bathtub 2 when one day has passed.

  As shown in FIG. 4A, in the hot water L in the hot water supply unit 1 and not passed through the microbubble generator 20, the distribution of the particle size of the microbubbles is 200 nm, 400 nm, 600 nm, and 800 nm. It shows that it is distributed.

  However, as shown in FIG. 4B, in the hot water L containing microbubbles in the bathtub 2 that has passed through the microbubble generator 20, the particle size is concentrated and distributed between less than 200 nm and about 500 nm. It shows that. That is, in the case of FIG. 4B, compared to the case of FIG. 4A, the number of microbubbles increases about 7 times when the particle diameter is in the range of less than 200 nm to about 500 nm. It can be seen that the particle size distribution is shifted to the small size side.

  In this way, in the hot water L containing microbubbles in the bathtub 2 that has passed through the microbubble generator 20 shown in FIG. 1, the particle size is concentrated and distributed from less than 200 nm to about 500 nm in FIG. As shown, hot water L containing microbubbles in the bathtub 2 passes through the hot water supply path P1 including the pipe 18, the water supply detection sensor 11, the check valve 12, the microbubble generator 20, the pipe 36, and the discharge nozzle 35 during hot water supply. In addition to being able to mix a large number of microbubbles H, the hot water L in the bathtub 2 further includes a water supply member 50, a pipe 49, an electric pump 14, a check valve 13, a pipe 37, a pipe 33, and a microbubble generator 20. This is because a large number of microbubbles H can be added through the feedback circulating hot water supply path P2 including the pipe 36 and the discharge nozzle 35. In the embodiment of the present invention, the piping connection from the hot water supply unit 1 to the microbubble generator 20B not only has the advantage that microbubbles (bubbles) can be generated in the bathtub 2 in one path, but also circulation. This has the advantage of increasing the number of microbubbles.

  In embodiment of this invention, the microbubble generator 10 for bathtubs can be newly newly installed easily between the domestic bathtub 2 and the hot water supply part 1, for example, with respect to the hot water L in the bathtub 2 In addition, a large number of microbubbles can be additionally easily mixed to increase the number of microbubbles. Thereby, the beauty health effect can be expected by using the water (hot water) L supplied in the bathtub 2.

  Since the operation of the electric pump 14 is started at the same time as the hot water supply from the hot water supply unit 1 shown in FIG. 1 is stopped, the hot water L already containing a large number of microbubbles can be repeatedly passed through the microbubble generator 20. In addition, the microbubbles H are further efficiently generated in the hot water L containing a large number of microbubbles. As for the effect on the living body that can be expected from the hot water L containing a large number of microbubbles, the dirt that has penetrated into the pores is removed, the foaming property of the soap detergent is improved, the hair is kept supple, and the heat retaining effect is maintained. Recovering skin damage such as, recovering stress, removing odor, and the like.

  A microbubble generator for a bathtub according to the present invention includes a microbubble generator that generates microbubbles by depressurizing and releasing pressure of hot water supplied to a bathtub, and hot water containing microbubbles in the bathtub. And a circulation part that passes the gas through the microbubble generator again and sends it into the bathtub. Thereby, microbubbles, such as a microbubble, are mixed with the hot water in a bathtub, and the number of microbubbles can be increased by circulating the hot water containing a microbubble.

  In the microbubble generator for a bathtub of the present invention, the microbubble generator is disposed between the bathtub and the hot water supply unit, and is disposed in the circulation unit to allow the hot water containing microbubbles in the bathtub to pass through the microbubble generator again. And a hot water supply detection sensor that detects that the supply of hot water from the hot water supply unit to the microbubble generator side has stopped and starts the operation of the electric pump. Thereby, the hot water in the bathtub is finished, and at the same time, the hot water containing the microbubbles in the bathtub can be circulated by the circulation unit and repeatedly passed through the microbubble generator. The number of can be increased.

  In the microbubble generator for bathtubs of the present invention, an introduction air amount adjustment valve that adjusts the introduction air amount in accordance with the inflow amount of hot water is arranged at the inlet of the microbubble generator. Thereby, the number of the microbubbles in the hot water containing the microbubbles in the bathtub can be surely increased easily.

  In the bathtub microbubble generator of the present invention, the bathtub microbubble generator is detachably connected to the bathtub and the hot water supply section. Thereby, the new construction and replacement work of the microbubble generator for bathtubs can be easily and reliably performed.

  The method for generating microbubbles for a bathtub according to the present invention is a method for generating microbubbles for a bathtub in which microbubbles are included in hot water supplied into the bathtub, and a microbubble generator is connected to the bathtub, and the microbubbles are generated. By passing the hot water through a vessel, the microbubbles are mixed with the hot water, and the circulating part passes the hot water containing the microbubbles in the bathtub again through the microbubble generator and sends it into the bathtub. Thereby, microbubbles, such as a microbubble, are mixed with the hot water in a bathtub, and the number of microbubbles can be increased by circulating the hot water containing a microbubble.

  The microbubble generator for bathtubs of the present invention does not require a high-pressure pump that has been necessary in the past, and the microbubble generator for bathtubs can be configured at low cost if an ordinary electric pump is provided.

  The present invention is not limited to the above embodiment. For example, instead of the hot-water supply unit 1 shown in FIG. 1, it may be a simple faucet part. In this case, hot water L is supplied into the bathtub 2 from the faucet part, and then, for example, gas on the bathtub side You may make it heat the hot water in the bathtub 2 using a heating apparatus.

  The electric pump 14 is a pump including a DC motor as an example. For example, the electric pump 14 may be powered from a commercial power source for home use, but may be separately provided with a battery.

  Furthermore, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiments of the present invention. For example, you may delete some components from all the components shown by embodiment of this invention. Furthermore, you may combine the component covering different embodiment suitably.

DESCRIPTION OF SYMBOLS 1 Hot water supply part 2 Bathtub 10 Microbubble generator 11 for bathtubs Water supply detection sensor 12, 13 Check valve 14 Electric pump (water supply pump)
15 Case 16 Valve 17, 34, 38 Connection 18, 33, 37 Piping 20, 20 B Microbubble generator 35 Discharge nozzle 36, 49 Piping 100 Control unit S Detection signal P 1 of hot water detection sensor Hot water supply path P 2 Circulating hot water for feedback Route (an example of circulation)
L hot water

Claims (6)

A microbubble generator connected to a bathtub and generating microbubbles by depressurizing and releasing the pressure of hot water supplied to the bathtub;
A circulating unit that passes the hot water containing the microbubbles in the bath through the microbubble generator again and sends the hot water into the bath;
A microbubble generator for bathtubs, comprising: The microbubble generator is disposed between the bathtub and the hot water supply unit,
An electric pump that is disposed in the circulation portion and that causes the hot water containing the microbubbles in the bath to pass through the microbubble generator again,
The water supply detection sensor which detects that supply of hot water from the hot water supply unit to the microbubble generator side is stopped and starts the operation of the electric pump. Microbubble generator.   The microbubble generator for bathtubs according to claim 1 or 2, wherein the microbubble generator is an aspirator.   The microbubble generator for bathtubs according to claim 3, wherein an inlet air amount adjustment valve that adjusts an inlet air amount according to an inflow amount of the hot water is disposed at an intake port of the aspirator.   The said microbubble generator for bathtubs is detachably connected with respect to the said bathtub and the said hot water supply part, The microbubble for bathtubs of any one of Claims 2-4 characterized by the above-mentioned. Generator. A method for generating microbubbles for a bathtub that includes microbubbles in hot water supplied into the bathtub,
A microbubble generator is connected to the bathtub, and the hot water is passed through the microbubble generator to mix the microbubbles with the hot water,
A method for generating microbubbles for a bathtub, wherein the circulating section passes the hot water containing the microbubbles in the bathtub again through the microbubble generator and sends the hot water into the bathtub.

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