JP2006271559A - Microbubble generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a microbubble generator which can be installed in a bathroom with saved space and saved construction by reducing piping construction connecting constitutions of the microbubble generator with each other at a construction place. <P>SOLUTION: The microbubble generator 1 is obtained by arranging an air suction part 6 for sucking air, a pump part 7 for carrying bath water to a circulation path 5, a dissolution part 8 for dissolving the air sucked by the air suction part 6 into the bath water and a pressure reduction part 9 for depositing air dissolved into the bath water in an order from the side of an inhalation part 3 at a circulation path 5 from the inhalation part 3 for inhaling the bath water in a bathtub 2 through to a discharging part 4 for discharging the bath water into the bathtub 2. An inhalation unit 10 is formed by integrating the inhalation part 3, the air suction part 6 and the pump part 7. The inhalation unit 10 is fitted to the outer side face of the bathtub 2, and the inhalation part 3 of the inhalation unit 10 is communicated in the bathtub 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fine bubble generating device that provides a clouded bath water.

  Conventionally, as shown in FIG. 6, the microbubble generator 1 is connected to the circulation path 5 from the suction part 3 that sucks the bath water of the bathtub 2 to the discharge part 4 that discharges the bath water to the bathtub 2. The air intake section 6 for sucking air, the pump section 7 for transporting the bath water to the circulation path 5, the dissolution section 8 for dissolving the air sucked in the intake section 6 into the bath water, and the air dissolved in the bath water are deposited in this order. A decompression section (not shown) is arranged, and the main constituent parts constituting the fine bubble generating device 1 listed above are formed separately, and at the construction site, on the side surface of the bathtub 2 The suction part 3 and the discharge part 4 are attached, the suction part 3 and the suction part 6 are connected by piping, the suction part 6 and the pump part 7 are connected by piping, and the pump part 7 and the dissolution part 8 are connected by piping. The part 8 and the pressure reducing part are connected by piping, and the pressure reducing part and the discharge part 4 are connected by piping. Forming a circulation path 5 by going connect with their respective piping main components of the bubble generating device 1, it is carried out and hence installation of the micro bubble generating device 1 (for example, see Patent Document 1).

In such a microbubble generator 1, the formation and installation in the bathroom require complicated construction work on the construction site such that the main components of the microbubble generator 1 are connected by piping as described above. In addition to the poor workability required for the installation of the fine bubble generating device 1, not only the installation space for each pipe that connects each of the main components, but also the work space required for the pipe construction is required. There is also a problem that a large space is required for installing the bubble generating device 1.
JP-A-6-165805

  The present invention has been made in view of the above-described conventional problems, and reduces the piping work for connecting the components of the fine bubble generating device performed at the construction site, and saves space and saves space in the bathroom. It is an object of the present invention to provide a microbubble generator that can be installed.

  In order to solve the above-mentioned problem, a fine bubble generating apparatus according to claim 1 of the present invention includes a circulation path 5 from a suction part 3 for sucking bath water in a bathtub 2 to a discharge part 4 for discharging the bath water to the bathtub 2. In order from the suction part 3 side, the suction part 6 for sucking air, the pump part 7 for conveying the bath water to the circulation path 5, the dissolution part 8 for dissolving the air sucked in the suction part 6 in the bath water, and the bath water A fine bubble generating device 1 in which a decompression unit 9 for depositing dissolved air is arranged, and an intake unit 10 is formed by integrating the intake unit 3, the intake unit 6 and the pump unit 7, It is attached to the outer surface of the bathtub 2 and the suction part 3 of the suction unit 10 is communicated with the bathtub 2. According to this, the suction unit 10 that is an integral part of the main components of the fine bubble generating device 1 and the communicating portion to the bathtub 2 is manufactured in advance in the factory, and the fine bubble generating device 1 is installed in advance. By installing the suction unit 10 manufactured at the factory to the outer surface of the bathtub 2 with the suction part 3 communicating with the inside of the bathtub 2, the main components of the inlet portion of the microbubble generator 1 could be installed. Therefore, the installation and installation of the microbubble generator 1 can be simplified compared to the conventional microbubble generator 1 formed by connecting the main components of the separate bodies by piping. The piping construction for installing the bubble generating device 1 can be reduced, the complexity of the piping construction can be reduced, and the workability for installing the fine bubble generating device 1 is improved. Space saving of space required for installation of and piping fine bubble generating device can be reduced working space construction 1 also can be achieved.

  Further, the microbubble generator according to claim 2 is arranged in order from the suction unit 3 side to the circulation path 5 from the suction unit 3 for sucking the bath water of the bathtub 2 to the discharge unit 4 for discharging the bath water to the bathtub 2. , An intake section 6 for sucking air, a pump section 7 for transporting bath water to the circulation path 5, a dissolution section 8 for dissolving air sucked in the intake section 6 into bath water, and a decompression section for depositing air dissolved in bath water 9 is a fine bubble generator 1 in which a dissolution unit 8, a decompression unit 9, and a discharge unit 4 are integrated to form a discharge unit 11, and the discharge unit 11 is attached to the outer surface of the bathtub 2. The discharge unit 4 of the discharge unit 11 is communicated with the bathtub 2. According to this, when the discharge unit 11 which is an integral part of the main component part of the fine bubble generating device 1 and the communicating part to the bathtub 2 is manufactured in advance in the factory and the fine bubble generating device 1 is installed, The main component of the outlet portion of the microbubble generator 1 could be installed by attaching the discharge unit 11 manufactured at the factory to the outer surface of the bathtub 2 with the suction part 3 communicating with the inside of the bathtub 2. Therefore, the installation and installation of the microbubble generator 1 can be simplified compared to the conventional microbubble generator 1 formed by connecting the main components of the separate bodies by piping. The piping construction for installing the bubble generating device 1 can be reduced, the complexity of the piping construction can be reduced, and the workability for installing the fine bubble generating device 1 is improved. Space saving of space required for installation of and piping fine bubble generating device can be reduced working space construction 1 also can be achieved.

  Further, the fine bubble generating device according to claim 3 is arranged in order from the suction unit 3 side to the circulation path 5 from the suction unit 3 for sucking the bath water of the bathtub 2 to the discharge unit 4 for discharging the bath water to the bathtub 2. , An intake section 6 for sucking air, a pump section 7 for transporting bath water to the circulation path 5, a dissolution section 8 for dissolving air sucked in the intake section 6 into bath water, and a decompression section for depositing air dissolved in bath water 9 is a microbubble generator 1 in which a suction unit 3, a suction unit 6, and a pump unit 7 are integrally formed to form a suction unit 10, and the suction unit 3 of the suction unit 10 is placed in the bathtub 2. The suction unit 10 is fixed to the outer surface of the bathtub 2, and the dissolution unit 8, the decompression unit 9 and the discharge unit 4 are integrated to form the discharge unit 11 and the discharge unit 4 of the discharge unit 11 is connected to the bathtub. The suction unit 10 is placed outside the bathtub 2 by communicating with the inside of the bathtub 2. Fixed to, characterized in that by connecting the the suction unit 10 and discharge unit 11 by a pipe. According to this, it is possible to install a part of the fine bubble generator 1 by fixing the suction unit 10 and the discharge unit 11 manufactured in advance in the factory to the outer surface of the bathtub 2, The installation of the fine bubble generator 1 can be simplified as compared with the conventional fine bubble generator 1 formed by connecting each other by piping, and the pipe for the installation of the fine bubble generator 1 performed at the construction site. The construction was reduced. Specifically, the piping construction for installation of the fine bubble generating device 1 performed at the construction site may be only the piping construction for connecting the discharge unit 11 and the suction unit 10, and the workability for installing the fine bubble generating device 1 is improved. In addition, it is possible to greatly reduce the space required for installing the fine bubble generating device 1 by reducing the installation space for piping and the working space for piping construction.

  In the present invention, an integral part of a main component of the microbubble generator and a part communicating with the bathtub is manufactured in advance in a factory, and the part communicating with the bathtub is communicated with the inside of the bathtub so that the integral part is placed on the outer surface of the bathtub. As a result, it has the advantage of simplifying the installation and installation of the microbubble generator compared to the conventional microbubble generator that is formed by connecting the main components separately from each other by piping. Since the piping construction for connecting the components of the fine bubble generating apparatus to be performed can be reduced, it has the advantage that the fine bubble generating apparatus can be installed in the bathroom in a space-saving and space-saving manner.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  1 and 2 show examples of embodiments of the present invention. As shown in FIG. 1, the microbubble generator 1 of the present example is provided with a suction part 3 in a circulation path 5 from a suction part 3 that sucks bath water in the bathtub 2 to a discharge part 4 that discharges the bath water into the bathtub 2. In order from the side, an intake section 6 for sucking air, a pump section 7 for transporting bath water to the circulation path 5, a dissolution section 8 for dissolving air sucked in the intake section 6 in bath water, and air dissolved in bath water are deposited The pressure reducing part 9 is arranged and formed, but is characterized in that the suction unit 10 in which the suction part 3, the suction part 6 and the pump part 7 are integrated is used.

  Here, the fine bubble generating device 1 takes in the bath water of the bathtub 2 from the suction portion 3 and mixes the bath water with air at the suction portion 6 to produce gas mixed water in which the air exists as bubbles in the bath water. Then, the pump unit 7 pressurizes and conveys the gas mixture to the dissolution unit 8, and the gas contained in the gas mixture water is converted into bath water in the dissolution unit 8 under a high pressure state by the pressurization of the pump unit 7 The gas-liquid dissolved water in a state where the air is dissolved in the bath water is dissolved, and the gas-liquid dissolved water is rapidly decompressed by the decompression unit 9 to precipitate the dissolved air from the bath water to the bath water. In this apparatus, fine bubble water in which air is present as fine bubbles is produced, and the fine bubble water is discharged from the discharge portion 4 into the bathtub 2.

  As shown in FIG. 2, the suction unit 10 is configured by integrally housing the suction portion 3, the suction portion 6, and the pump portion 7 in an outer shell casing 10a, and specifically, penetrates the outer shell casing 10a. An in-unit circulation path 5a is formed, and the inlet 5a1 of the in-unit circulation path 5a that opens to the outside from the outer shell casing 10a is configured by the suction part 3 facing the bathtub 2 and A throttle part 12 having a reduced diameter of the intra-unit circulation path 5a is provided at the part of the circulation path 5a, and an air suction pipe constituting the intake part 6 is provided at the part of the intra-unit circulation path 5a immediately downstream of the throttle part 12. 13 is connected, and the blade 15 is rotationally driven by the motor 14 housed in the outer casing 10a in the downstream portion of the in-unit circulation path 5a than the connection portion of the air suction pipe 13. A pump section 7 composed of an axial flow pump is disposed, and an outlet 5a2 of the in-unit circulation path 5a that opens to the outside from the outer casing 10a is provided downstream of the pump section 7 in the in-unit circulation path 5a. . When the bath water in the bathtub 2 is sucked into the in-unit circulation path 5a from the suction section 3 by the drive of the pump section 7, the negative pressure is generated between the throttle section 12 and the pump section 7 in the in-unit circulation path 5a. Thus, air can be sucked together from the intake section 6 by the self-priming force of the pump section 7. Here, a throttle 16 is provided at the start end of the air suction pipe 13 constituting the intake portion 6 so that the amount of intake air can be adjusted, and stable suction of an appropriate amount of air within a range in which the pump portion 7 is not air-locked is possible. I have to. In addition, a wire mesh filter 26 is installed at a portion of the suction portion 3 facing the bathtub 2 to prevent inhalation of dust such as hair contained in the bath water into the in-unit circulation path 5a. In addition, although the intake section 6 of this example sucks air into the bath water, it is preferable that an oxygen supply device or the like is connected to the start end of the air suction pipe 13 to suck any gas such as oxygen into the bath water. .

  The suction unit 10 is manufactured in advance in a factory. At the construction site, the suction unit 3 of the suction unit 10 and the bathtub are inserted by inserting the suction unit 3 of the suction unit 10 into a through-hole drilled in the side wall of the bathtub 2. It connects with the inside of 2, and is attached to the outer surface of the bathtub 2 in the state. Thus, in this example, when installing the fine bubble generating device 1 in the bathroom, the suction unit 10 manufactured in the factory in advance is fixed to the outer surface of the bathtub 2, so that the main part of the inlet portion of the fine bubble generating device 1 is fixed. The components could be easily installed. Thus, compared to the conventional installation of the fine bubble generator 1 in which the main components of the fine bubble generator 1 are connected by their own pipes, the installation of the fine bubble generator 1 can be simplified. It is.

  Furthermore, the suction unit 10 is attached along the side wall of the bathtub 2, and there is an advantage that the fine bubble generating device 1 can be stored and arranged well in a space surrounded by the bathtub flange and the bathtub apron. Have. In this example, the main components of the fine bubble generating device 1 other than the suction unit 10 are separate from each other as in the prior art, and are connected to each other by piping, and the circulation path 5 and thus the fine bubble generating device 1 are installed. Yes. Specifically, the outlet 5a2 of the in-unit circulation path 5a of the suction unit 10 and the dissolving portion 8 are connected by piping, and the discharging portion 4 including the dissolving portion 8 and the decompression portion 9 is connected by piping. Yes. However, compared with the conventional installation of the fine bubble generator 1 in which the main components of the fine bubble generator 1 are connected by their own pipes, the generation of fine bubbles is performed at the construction site by the amount the suction unit 10 is formed in the factory in advance. It is possible to reduce the piping work for the installation of the apparatus 1. In this way, the piping work required for the installation of the fine bubble generating device 1 performed at the construction site can be reduced, so that the workability required for the installation of the fine bubble generating device 1 can be improved and the installation space for the piping and the work of the piping work can be improved. The space required for installing the fine bubble generating device 1 can be reduced and the space can be saved. Of course, since the piping member used for piping construction can also be reduced, it has the advantage that the expense concerning installation of the fine bubble generator 1 can also be reduced.

  3 and 4 show another example of the embodiment of the present invention. As shown in FIG. 3, the fine bubble generating apparatus 1 of the present example is provided with a suction part 3 in a circulation path 5 from a suction part 3 that sucks bath water in the bathtub 2 to a discharge part 4 that discharges the bath water into the bathtub 2. In order from the side, an intake section 6 for sucking air, a pump section 7 for transporting bath water to the circulation path 5, a dissolution section 8 for dissolving air sucked in the intake section 6 in bath water, and air dissolved in bath water are deposited The pressure reducing part 9 is arranged and formed, and is characterized in that the discharge unit 11 in which the melting part 8, the pressure reducing part 9 and the discharge part 4 are integrated is used.

  As shown in FIG. 4, the discharge unit 11 is configured by integrally housing the discharge unit 4, the dissolution unit 8, and the pressure reduction unit 9 in the outer shell casing 11 a, and more specifically, the dissolution unit 8 constituting the dissolution unit 8. The discharge part 4 and the decompression part 9 are integrally attached to the tank 17, and the outer casing 11 a is formed so that the outer part of the discharge tank 4 and the decompression part 9 are integrated with the outer shell of the dissolution tank 17. ing.

  The dissolution tank 17 is formed in a rectangular thin box shape whose outer shape is thinner than the height and width, and the inside of the dissolution tank 17 extends from the bath water inlet 17a of the dissolution tank 17 to the bath water outlet 17b of the dissolution tank 17. It has a multi-layer structure that is separated by long partition walls. Specifically, as shown in FIG. 4A, the dissolution tank 17 of the present example includes a first layer 20 that is a stirring dissolution layer and a second layer 21 that is a dissolution promoting layer by a first partition wall 18 and a second partition wall 19. The third layer 22 has a continuous three-layer structure, and the bath water introduced from the bath water inlet 17a of the dissolution tank 17 above the first layer 20 passes through the second layer 21 to the third layer 22. It is discharged from a bath water outlet 17b of a dissolution tank 17 provided at the lower part. The first partition 18 has openings 18a and 18b in the upper and lower portions, and the first layer 20 and the second layer 21 are communicated with each other in the upper and lower portions. The second partition 19 has an opening 19a in the upper portion. The second layer 21 and the third layer 22 communicate with each other at the upper part. In the operation state of the dissolution tank 17, the pressure in the pump unit 7 brings the inside of the dissolution tank 17 to a high pressure state and the bath water is stored so as to leave an air layer above the dissolution tank 17. More specifically, the air layer is in a continuous state through the openings 18 a and 19 a in the upper portions of the first partition wall 18 and the second partition wall 19, and the bath water is in the lower portion of the first partition wall 18. It flows into the second layer 21 from the opening 18 b and flows from the second layer 21 to the third layer 22 so as to overflow from the opening 19 a above the second partition wall 19. Bath water (gas mixed water) containing air sucked from the intake section 6 and pressurized and conveyed by the pump section 7 is introduced into the dissolution tank 17, but the air above the first layer 20 is introduced. A spray nozzle 23 is provided at the bath water inlet 17a of the dissolution tank 17 facing the layer, and bath water (gas mixed water) ejected vigorously toward the bath water accumulated in the first layer 20 by the spray nozzle 23. ) Is the bubbling state in which the air in the air layer of the dissolution tank 17 is also entrained and the air is pulverized and stirred in the bath water accumulated in the first layer 20, and the contact area of the air with the bath water The gas is dissolved in the bath water accumulated in the first layer 20 to generate gas-liquid dissolved water. This gas-liquid dissolved water flows into the second layer 21 from the opening 18b below the first partition wall 18, but the bubble-like air that has not completely dissolved in the gas-liquid dissolved water and has flowed into the second layer 21 is the first. The two layers 21 reach the upper air layer, are returned to the first layer 20 through the opening 18a above the first partition wall 18, and are dissolved again in the bath water. Of course, the incompletely dissolved bubble-like air removed from the second layer 21 to the bath outlet 17b of the third layer 22 also floats from the bath water to the first layer 20 through the air layer. It is returned and dissolved again in the bath water. Note that the amount of air sucked into the bath water at the intake section 6 is set slightly larger than the amount of dissolved air into the bath water at the dissolution tank 17, but the air is vented to an appropriate height position of the dissolution tank 17. When the valve 24 is provided and the water level of the bath water in the dissolution tank 17 is lower than the installation height of the air vent valve 24, the excess air in the air layer can be discharged to the outside. Thus, the bath water in a state where the water level is lowered and air bubbles remain is prevented from being discharged from the bath water outlet 17b of the dissolution tank 17, and the stable operation of the dissolution tank 17 is ensured. The bath water (gas-liquid dissolved water) in which bubbles are removed in this way and the air is dissolved is discharged out of the dissolution tank 17 from the bath water outlet 17b.

  The decompression section 9 and the discharge section 4 are connected in order to the bath water outlet 17b of the dissolution tank 17. The decompression unit 9 is composed of a decompression nozzle 25 such as a disk nozzle having a small-diameter portion that rapidly reduces the diameter of the bath water flow path, and reaches the bath water outlet 17b of the dissolution tank 17 by the decompression nozzle 25. It is possible to rapidly release the pressure of bath water in which air is dissolved (gas-liquid dissolved water) to precipitate air dissolved in the bath water to generate fine bubble water. Then, the bath water (fine bubble water) whitened by the precipitated air can be discharged into the bathtub 2 from the discharge portion 4 with an appropriate momentum.

  As described above, in the discharge unit 11, the bath water flows from the bath water inlet 17 a of the dissolution tank 17 to the discharge unit 4 through the decompression unit 9, and this bath water flow path is a unit constituting a part of the circulation path 5. This is an internal circulation path 5b. That is, the inlet 5b1 of the in-unit circulation path 5b that opens to the outside from the outer shell casing 11a is constituted by the bath water inlet 17a of the dissolution tank 17, and the outlet 5b2 of the in-unit circulation path 5b that opens to the outside from the outer shell casing 11a. It is comprised by the discharge part 4 made to face in the bathtub 2. FIG.

  The discharge unit 11 is manufactured in advance at a factory, and at the construction site, the discharge unit 4 of the discharge unit 11 and the bathtub are inserted by inserting the discharge unit 4 of the discharge unit 11 into a through hole drilled in the side wall of the bathtub 2. It connects with the inside of 2, and is attached to the outer surface of the bathtub 2 in the state. Thus, in this example, when installing the fine bubble generating device 1 in the bathroom, the discharge unit 11 manufactured in advance in the factory is fixed to the outer surface of the bathtub 2, so that the main portion of the outlet portion of the fine bubble generating device 1 is fixed. The components could be easily installed. Thus, compared to the conventional installation of the fine bubble generator 1 in which the main components of the fine bubble generator 1 are connected by their own pipes, the installation of the fine bubble generator 1 can be simplified. It is.

  Furthermore, the dissolution tank 17 occupying most of the discharge unit 11 is thin, and the discharge unit 11 can be attached along the side wall of the bathtub 2 and is in a space surrounded by the bathtub flange and the bathtub apron. In addition, there is an advantage that the fine bubble generating device 1 can be accommodated and well accommodated. In this example, the main components of the fine bubble generating device 1 other than the discharge unit 11 are separate from each other as in the prior art, and connected to each other by piping, so that the circulation path 5 and thus the fine bubble generating device 1 are installed. . Specifically, the suction part 3 and the suction part 6 are connected by piping, the suction part 6 and the pump part 7 are connected by piping, and the inlet 5b1 of the in-unit circulation path 5b of the pump part 7 and the discharge unit 11 Are connected by piping to form a circulation path 5. However, compared to the conventional installation of the fine bubble generator 1 in which the main components of the fine bubble generator 1 are connected by their own pipes, the fine bubble generation is performed at the construction site by the amount the discharge unit 11 is formed in the factory in advance. It is possible to reduce the piping work for the installation of the apparatus 1. In this way, the piping work required for the installation of the fine bubble generating device 1 performed at the construction site can be reduced, so that the workability required for the installation of the fine bubble generating device 1 can be improved and the installation space for the piping and the work of the piping work can be improved. The space required for installing the fine bubble generating device 1 can be reduced and the space can be saved.

  FIG. 5 shows still another example of the embodiment of the present invention. The microbubble generator 1 of this example supplies air in order from the suction unit 3 side to the circulation path 5 from the suction unit 3 that sucks the bath water of the bathtub 2 to the discharge unit 4 that discharges the bath water to the bathtub 2. An intake section 6 for intake air, a pump section 7 for transporting bath water to the circulation path 5, a dissolution section 8 for dissolving air sucked in the intake section 6 into bath water, and a decompression section 9 for depositing air dissolved in bath water are arranged. As shown in FIGS. 1 and 2, the suction unit 3, the suction unit 6, and the pump unit 7 are integrated, and the dissolution unit is similar to the examples of FIGS. 8, a decompression unit 9, and a discharge unit 11 in which the discharge unit 4 is integrated. That is, in this example, when the fine bubble generating device 1 is installed in the bathroom, the main component of the inlet portion of the fine bubble generating device 1 is fixed to the outer surface of the bathtub 2 with the suction unit 10 manufactured in advance in the factory. Is easily installed, and the main component part of the outlet part of the fine bubble generating device 1 is easily installed by fixing the discharge unit 11 manufactured in the factory in advance to the outer surface of the bathtub 2 to generate fine bubbles. The construction of the apparatus 1 is greatly improved. Then, the outlet 5a2 of the in-unit circulation path 5a of the suction unit 10 and the inlet 5b1 of the in-unit circulation path 5b of the discharge unit 11 are connected by pipe construction to form the circulation path 5, and consequently the fine bubble generator 1 Installation is in progress. In this example, the pipe construction related to the installation of the fine bubble generating device 1 performed at the construction site is performed only for the connection between the suction unit 10 and the discharge unit 11, and the main configuration of the fine bubble generating device 1 is as follows. Compared with the conventional installation of the fine bubble generating apparatus 1 in which the parts are connected by their own pipes, this pipe installation can be greatly reduced. Therefore, the workability required for the installation of the fine bubble generating device 1 is greatly improved, and the installation space for the piping and the work space for the piping work are greatly reduced to save the space required for the installation of the fine bubble generating device 1. The space has been greatly reduced.

  In addition, in this example, the suction unit 10 is attached to the side surface portion constituting the long side portion of the side surface of the rectangular bathtub 2, and the discharge unit 11 is attached to the side surface portion constituting the short side portion of the side surface of the bathtub 2. The turbid bath water jetted from the discharge unit 4 of the discharge unit 11 has a positional relationship in which the microbubble generator 1 is not immediately sucked from the suction unit 3 of the suction unit 10, and the discharge unit 11 and the suction unit 10 Are installed in the space surrounded by the bathtub flange and the bathtub apron, so that the fine bubble generator 1 can be installed. However, the attachment position of the discharge unit 11 and the suction unit 10 to the outer surface of the bathtub 2 is that the clouded bath water discharged from the discharge unit 4 to the bathtub 2 is not immediately sucked from the suction unit 3 into the fine bubble generator 1. Thus, it goes without saying that it can be arbitrarily set according to the shape of the space surrounded by the bathtub flange and the bathtub apron after paying attention to the positional relationship between the suction part 3 and the discharge part 4.

  Further, the suction unit 10 exemplified in the above description is provided in the unit circulation path 5a penetrating the outer casing 10a so that the suction portion 3, the suction portion 6, and the pump portion 7 are accommodated in order from the upstream side, so that the size can be reduced. However, the suction part 3, the suction part 6, and the pump part 7 are mounted on the unit base, respectively, and the parts 3, 6, and 7 are connected by a circulation path 5a in the unit of the pipe and integrated. Even a thing has a simple structure and is preferable. Similarly, the illustrated discharge unit 11 is the one in which the decompression unit 9 and the discharge unit 4 are integrally attached to the dissolution tank 17 for miniaturization, but the in-unit circulation path 5a penetrating the outer casing 11a. Even if the melted part 8 for dissolving the air under high pressure is formed in the bath water stored by providing a partition directly in the tank and the decompression part 9 and the discharge part 4 are formed in order downstream of the melted part 8, the further downsizing can be achieved. Preferably, the melting part 8, the decompression part 9, and the discharge part 4 are mounted on the unit base, and the parts 8, 9, and 4 are connected and integrated by a circulation path 5b in the unit of the pipe. However, the configuration is simple and preferable.

It is a schematic block diagram of the fine bubble generator of the example of embodiment of this invention. It is a schematic side view of the principal part of the installation state of a microbubble generator same as the above. It is a schematic block diagram of the fine bubble generator of the other example of embodiment of this invention. It is the installation state of a microbubble generator same as the above, (a) is a schematic front view, (b) is a schematic side view. It is a schematic block diagram of the microbubble generator of the further another example of embodiment of this invention. It is a schematic block diagram of the microbubble generator of the example of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fine bubble generator 2 Bathtub 3 Suction part 4 Discharge part 5 Circulation path 6 Intake part 7 Pump part 8 Dissolution part 9 Decompression part 10 Suction unit 11 Discharge unit

Claims (3)

  From the suction part that sucks bath water in the bathtub to the circulation path leading to the discharge part that discharges the bath water to the bathtub, an intake part that sucks air in order from the suction part side, a pump part that conveys the bath water to the circulation path, This is a microbubble generator that has a dissolving part that dissolves the air sucked in the intake part in the bath water and a decompression part that precipitates the air dissolved in the bath water. The suction part, the intake part, and the pump part are integrated. A fine bubble generating device characterized in that a suction unit is formed, the suction unit is attached to the outer surface of the bathtub, and the suction part of the suction unit is communicated with the bathtub.   From the suction part that sucks bath water in the bathtub to the circulation path leading to the discharge part that discharges the bath water to the bathtub, an intake part that sucks air in order from the suction part side, a pump part that conveys the bath water to the circulation path, It is a microbubble generator that has a dissolving part that dissolves the air sucked in the intake part in the bath water, and a decompression part that deposits the air dissolved in the bath water. The dissolving part, the decompression part, and the discharge part are integrated. A fine bubble generator characterized in that a discharge unit is formed, the discharge unit is attached to the outer surface of the bathtub, and the discharge portion of the discharge unit is communicated with the bathtub.   From the suction part that sucks bath water in the bathtub to the circulation path leading to the discharge part that discharges the bath water to the bathtub, an intake part that sucks air in order from the suction part side, a pump part that conveys the bath water to the circulation path, This is a microbubble generator that has a dissolving part that dissolves the air sucked in the intake part in the bath water and a decompression part that precipitates the air dissolved in the bath water. The suction part, the intake part, and the pump part are integrated. The suction unit is formed, the suction part of the suction unit is communicated with the inside of the bathtub and the suction unit is fixed to the outer surface of the bathtub, and the discharge part is formed by integrating the dissolving part, the decompression part and the discharge part. The discharge unit of the discharge unit is communicated with the inside of the bathtub, the suction unit is fixed to the outer surface of the bathtub, and the suction unit and the discharge unit are connected by a pipe.

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