JP2013121392A - Bath system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bath system, capable of performing cleaning of a cleaning object in a satisfactory manner while effectively using residual hot water in a bathtub.SOLUTION: A pump 4 for circulating bathtub water, a pressure container 5 provided with a tank for storing water, and a bathtub water level detection means 3 for detecting a level of water in a bathtub 1 are provided in a circulation path 2 connected to the bathtub 1, and a reclaimed water passage 19 is connected thereto through a selector valve 6. The system includes an air introduction means 16 to the pressure container 5, so that introduced air is dissolved to water introduced to the pressure container 5 under pressure, and led out as air pressure-dissolved water. When the use of reclaimed water is instructed or the opening operation of a reclaimed water outlet is performed, if a detection water level detected by the bathtub water level detection means 3 is a predetermined level of water level of reclaimed water set for use or more, the pressurized air dissolved water is introduced to the reclaimed water passage 19 through the selector valve 6 by driving the pump 4, and microscopic bubbles are jetted from a microscopic bubble blowoff 50 for white turbidity of reclaimed water, and microscopic bubble-containing water is led out through the reclaimed water outlet 18.

Description

  The present invention relates to a bath system having a function of causing bath water to contain fine bubbles (white turbidity).

  For example, shoe washing of sneakers or the like generally uses tap water (clean water) and a detergent, and tap water is also used for water that flows after use of a toilet. In addition, it has also been proposed to use the remaining hot water (water) of the bath as the water used for shoe washing as described above or the water that flows after using the toilet (for example, see Patent Document 1). In the specification of the present application and the like, in the case where the remaining hot water of the bath or the like is used (reused) for shoe washing or washing without being discharged directly as sewage, this water is hereinafter referred to as middle water.

JP 2001-321286 A

  By the way, in recent years, bath apparatuses having a bubble generating function for generating bubbles in bathtub water have come to be used. It is known that the generation of fine bubbles (white turbidity type) in the bathtub not only improves the heat retention of the bathed person, but also has an effect of easily removing the dirt. It was thought that the drop effect could not be used effectively for the cleaning.

  The present invention has been made on the basis of the above-mentioned idea of the present inventor, and its purpose is to clean an object to be cleaned by reusing the remaining hot water in a bathtub connected to a bath apparatus having a function of generating fine bubbles. An object of the present invention is to provide a bath system that can easily remove dirt when performing.

  In order to achieve the above object, the present invention has the following configuration as means for solving the problems. That is, the first invention is provided with a pump having a function of circulating bath water in a circulation path connected to the bathtub, and a pressurization provided with a tank for storing water in the circulation path on the discharge side of the pump A water introduction part of the container is connected, and a circulation path on the water outlet part side of the pressurized container is connected with a middle water passage for guiding water to a middle water outlet through a switching valve, and the water in the bathtub The water level detecting means for detecting the water level of the water and the air introducing means for introducing the air for melting the water introduced from the water introducing portion of the pressurized container, were introduced by the air introducing means. Air has a configuration in which air is pressurized and melted into water introduced into the pressurized container by the pump and led out as air pressurized molten water, and the pressurized molten water passes through the switching valve and passes through the intermediate water passage. Decompressing the air pressurized molten water when it is introduced into Further, a fine water jet device for white water cloudiness that jets fine air bubbles into the water in the middle water passage is provided in the middle water passage, and the air pressurized molten water is connected to the connection portion of the circulation path to the bathtub. A microbubble jet device for turbidity of a tub that causes jetting of microbubbles into the water in the bathtub by depressurizing the water is provided, and when a medium water use instruction is applied or when the medium water outlet is opened When the detected water level detected by the bathtub water level detection means is equal to or higher than a predetermined intermediate water use set water level, the air pressurized molten water led out from the pressurized container by driving the pump is Introducing into the intermediate water passage through the switching valve, ejecting fine bubbles from the intermediate water cloudiness fine bubble ejecting device to derive water contained in the fine bubbles from the intermediate water outlet, Again when The configuration is provided with a microbubble-containing medium water derivation control means for stopping derivation of the water contained in the microbubbles from the medium water outlet when the operation for closing the medium water outlet is performed. As a means.

  In addition to the configuration of the first invention, the second invention has pressure detection means for detecting the pressure in the pressurized container, and the fine bubble-containing middle water derivation control means is controlled by the pressure detection means. When the detected pressure in the pressurized container falls below a preset pump-on set pressure, the pump starts to be driven, and when the intermediate water use stop command is applied and the intermediate water outlet is closed. And when the pressure in the pressurized container is equal to or higher than a predetermined pump-off set pressure higher than the pump-on set pressure, the driving of the pump is stopped at any predetermined set timing. To do.

  Further, in the third invention, in addition to the configuration of the first invention, a water storage tank for storing middle water is interposed in the middle water passage. When the pressure in the storage tank becomes equal to or lower than a predetermined pump-on set pressure, driving of the pump is started, and the pressure in the water storage tank becomes equal to or higher than a predetermined pump-off set pressure higher than the pump-on set pressure. Sometimes the drive of the pump is stopped.

  Further, according to a fourth aspect of the invention, in addition to the configuration of the first aspect of the invention, a water storage tank that stores intermediate water is interposed in the intermediate water passage, and the water storage tank includes an inside of the water storage tank. Is provided with a pressure switch that is turned on when the pressure becomes equal to or lower than a predetermined on-drive pressure and turned off when the pressure is equal to or higher than a predetermined off-drive pressure that is higher than the on-drive pressure. The driving of the pump is started when an on signal of the switch is applied, and the driving of the pump is stopped when an off signal of the pressure switch is applied.

  Furthermore, in a fifth aspect of the invention, in addition to the configuration of the third or fourth aspect of the invention, the air introduction means is closed until a predetermined valve opening set waiting time elapses from the start of driving of the pump, An air introduction valve opening / closing control means is provided for melting the air in the bath water by opening the air introduction means after the valve opening setting standby setting time has elapsed.

  Furthermore, in the sixth aspect of the invention, in addition to the configuration of the fourth aspect of the invention, when the pressure switch of the water storage tank repeatedly performs an on / off operation more than a predetermined number of times within a predetermined setting judgment time, Immediately thereafter, the air introducing means is opened to melt the air in the bath water.

  Furthermore, the seventh invention has a bath temperature detecting means for detecting the temperature of the bath water in addition to the configuration of any one of the first to sixth inventions, and the detected temperature of the bath temperature detecting means is previously set. When the temperature is equal to or higher than the set temperature, the air introduction means is opened immediately after the pump is driven to melt the air in the bath water.

  Further, according to an eighth invention, in addition to the configuration of any one of the first to seventh inventions, a heat exchanger for heating the circulating water is interposed in the circulation path, and the circulation path is driven by a pump. A reheating circulation path is formed in which the bathtub water circulating in the circulation path is heated and circulated.

  Furthermore, in the ninth aspect of the invention, in addition to the configuration of any one of the first to eighth aspects of the invention, an ozone containing portion that contains ozone is connected to the air introducing means, and ozone is introduced from the air introducing means. An ozone introducing means is formed.

  According to the present invention, a pump having a function of circulating bath water in a circulation path connected to the bathtub is provided, and water in a pressurized container having a tank for storing water in the circulation path on the discharge side of the pump. An introductory part was connected, and a circulation path on the water outlet part side of the pressurized vessel was connected with a middle water passage for guiding water to the middle water outlet through a switching valve, and a middle water utilization instruction was added. Or when the detected water level of the bathtub is equal to or higher than a predetermined water utilization set water level when the intermediate water outlet opening operation is performed, the air pressurized molten water derived from the pressurized container is It can be appropriately introduced into the passage. The opening operation of the intermediate water outlet is an operation for extracting intermediate water from the intermediate water outlet such as an operation of opening a stopper of the intermediate water outlet or a lever opening operation.

  Then, the air pressurized molten water introduced into the middle water passage is decompressed and ejected by the fine water jet device for white water cloudiness, and the fine bubbles are ejected into the water in the middle water passage, and the water contained in the fine bubbles is discharged. It can derive | lead-out suitably from the said middle water outlet. Since the water containing fine bubbles has a high effect of removing dirt, by introducing the fine bubbles into the middle water (tub water) to be derived and reused through the middle water outlet, For example, dirt can be easily removed in shoe washing or toilet washing. In addition, when an instruction for stopping the use of intermediate water is applied or when the operation of closing the intermediate water outlet is performed, water is stopped by stopping the supply of the fine bubble-containing water from the intermediate water outlet. Can be saved. The closing operation of the intermediate water outlet is an operation for stopping the outlet of the intermediate water outlet such as closing the stopper of the intermediate water outlet or closing the lever. It also includes a valve closing operation in the case where a valve provided on the middle water outlet port side is automatically closed after the opening operation.

  In addition, a bath turbidity fine bubble ejection device is also provided at the connection portion of the circulation path to the bathtub, and the air pressurized molten water is decompressed and ejected, and the microbubbles are ejected into the water in the bathtub, Fine bubbles can be appropriately generated inside, and the user can be encouraged to have a comfortable bathing time.

  Further, a pressure detection means for detecting the pressure in the pressurized container is provided, and the fine bubble-containing middle water derivation control means is configured such that the pressure in the pressurized container detected by the pressure detection means falls below a predetermined pump-on set pressure. By starting the drive of the pump, the water is discharged from the middle water outlet, and when the pressure in the pressurized container falls below the pump-on set pressure, the water containing fine bubbles is quickly The middle water can be led out from the middle water outlet. That is, in Patent Document 1, a signal is sent after the start of use of the remaining hot water in the bathtub, and the pump is driven by receiving the signal. By starting the pump drive according to the pressure of the pump, the drive of the pump can be started quickly.

  Also, the pump is stopped when a stoppage instruction for using the intermediate water is applied, or when the pressure in the pressurized container becomes equal to or higher than a preset pump-off set pressure higher than the pump-on set pressure. By stopping the pump, the pump can be stopped at an appropriate timing. In addition, by stopping the driving of the pump when the pressure in the pressurization container becomes equal to or higher than the pump-off set pressure, the pressure in the pressurization container can be appropriately increased.

  Further, a water storage tank is provided in the intermediate water passage to store intermediate water (that is, water introduced into the intermediate water passage from the bathtub) in the water storage tank. The pump drive start is delayed by one tempo as described above by starting the pump drive when the pressure in the water storage tank becomes equal to or lower than the preset pump-on set pressure after the medium water use command is added. If the water is discharged from the outlet of the intermediate water and the pressure in the intermediate water passage and the water storage tank drops below the set pressure, the intermediate water of the water containing fine bubbles is promptly introduced. It can be derived from the exit. Moreover, the pump can be stopped at an appropriate timing by stopping the driving of the pump when the pressure in the water storage tank becomes equal to or higher than a predetermined pump-off setting pressure higher than the pump-on setting pressure, The pressure in the water storage tank can be appropriately increased.

  Further, a water storage tank is provided in the intermediate water passage to store intermediate water (that is, water introduced from the bathtub into the intermediate water passage), and the water storage tank stores the water storage tank. A pressure switch that is turned on when the inside of the tank becomes equal to or lower than a predetermined on-driving pressure and that is turned off when the inside of the tank becomes higher than a predetermined off-driving pressure that is higher than the on-driving pressure is provided. By starting the pump operation when the switch ON signal is applied, the pump drive start is not delayed by one tempo, and the intermediate water outlet side is opened and the intermediate water passage and the water storage tank are opened. When the pressure decreases and the pressure switch is turned on, the medium water containing fine bubbles can be quickly derived from the medium water outlet. Moreover, the pump can be stopped at an appropriate timing by stopping the driving of the pump when an off signal of the pressure switch in the water storage tank is applied, and the pressure in the water storage tank can be appropriately increased. Can be pressure.

  Furthermore, in a configuration in which a water storage tank is provided in the middle water passage and a pressure sensor is provided in the water storage tank, or in a configuration in which a pressure switch is provided, air is maintained until a predetermined valve opening set standby time elapses from the start of driving the pump The following effects can be achieved by closing the introduction means and opening the air introduction means after the set time has elapsed so as to melt the air in the bath water.

That is, the pressure in the tank of the water storage tank provided in the intermediate water passage is maintained at a pressure of, for example, 100 KPa (about 1 kg / cm ² ) when the intermediate water outlet is closed. When the outlet opens, the water is pushed out by the air in the water storage tank and the water is led out from the middle water outlet, and temporarily (from when the middle water outlet is opened until the pump starts driving). ), The pressure in the water storage tank drops below 100 KPa. And when the pressure in the water storage tank falls below the pressure suitable for pump-on (that is, when the detected pressure detected by the pressure sensor falls below the pump-on set pressure, or the pressure falls below the on-drive pressure of the pressure switch) The pump is started to drive, and the intermediate water is introduced into the water storage tank, and the intermediate water is led out from the intermediate water outlet through the intermediate water passage and the water storage tank.

On the other hand, the pressure in the pressurized tank that forms the water containing fine bubbles is, for example, about 3 kg / cm ^2, where air is dissolved in water and drops to about 1 kg / cm ² due to the resistance of the intervening portion of the switching valve. The water is stored in the water storage tank, but the air enters into the water storage tank provided in the middle water passage after a part of the air comes out as bubbles (white turbidity) due to the resistance of the intervening part of the switching valve. The amount of air in the water storage tank will gradually increase. Therefore, the air introduction means is closed until the predetermined valve opening set waiting time elapses after the pressure of the water storage tank becomes lower than the pressure suitable for the pump, and after the set time has elapsed. By making the air introduction means open and melting the air in the bath water, the amount of air in the water storage tank does not become too large and the water level does not drop too much.

  In addition, even if the middle water outlet is closed, the pump continues to be turned on, so that the pressure in the water storage tank rises to a pressure suitable for pumping off (for example, 100 KPa) higher than the pump-on set pressure. (That is, when the detected pressure detected by the pressure sensor is higher than the pump-off set pressure higher than the pump-on set pressure, or when the pressure is higher than the OFF switch pressure of the pressure switch), the pump is turned off. The pressure in the water storage tank is maintained at the pump-off set pressure or a pressure in the vicinity thereof.

  Further, in the configuration in which the water storage tank is provided in the middle water passage and the pressure switch is provided in the water storage tank, the ON / OFF operation of the water storage tank is performed more than a predetermined number of times within a predetermined setting judgment time. When repeatedly performed, it is considered that the pressure switch is frequently turned on and off because the pressure in the water storage tank is not stabilized because the amount of air in the water storage tank is small. Therefore, in such a case, immediately after the ON / OFF operation more than the set number of times of the pressure switch, the pressure melting means opens the air introducing means to melt the air into the bath water, thereby reducing the amount of air in the water storage tank. Increase the air volume to stabilize (there is always a fixed layer of air in the water storage tank), stabilize the pressure in the water storage tank, and avoid repeated on / off operation of the pressure switch for a long time .

  Furthermore, if the temperature of the bath water is high, the solubility of the air in the bath water is low, and water is stored in a tank (pressure tank or water storage tank) having a lower temperature than the bath water in that state. When the water cools in the tank and the solubility of the air increases, the air in the tank dissolves in the water and the amount of air in the tank decreases. Therefore, when the detection temperature of the bath temperature detection means for detecting the temperature of the bath water is equal to or higher than a preset temperature, the air introduction means is opened immediately after the pump is driven to melt the air in the bath water. The air amount can be increased to stabilize the air amount, and the pressure in the pressurized container and the pressure in the water storage tank can be stabilized.

  Furthermore, by installing a heat exchanger that heats the circulating water in the circulation path and forming a recirculation circuit that heats and circulates the bath water, a bath system that can reheat the bath water easily It can be constructed with a simple configuration.

  Furthermore, since ozone-containing water has a higher dirt removing effect than air-containing water, an ozone containing portion that contains ozone is connected to the air introducing means to introduce ozone from the air introducing means to create ozone-containing water, If reused as middle water, for example, for shoe washing, in addition to the above effects, the effect of further removing dirt can be further enhanced.

BRIEF DESCRIPTION OF THE DRAWINGS It is typical explanatory drawing for demonstrating the system configuration | structure and its operation | movement of 1st Example of the bath system which concerns on this invention. It is a block diagram which shows the control structure provided in the bath system of 1st Example. It is a flowchart for demonstrating the operation example of 1st Example. It is typical explanatory drawing for demonstrating the system configuration | structure and its operation | movement of 2nd Example of the bath system which concerns on this invention. It is typical explanatory drawing for demonstrating the pressure maintenance operation | movement in the water storage tank in 2nd Example. It is a block diagram which shows the control structure provided in the bath system of 2nd Example. It is a flowchart for demonstrating the operation example of 2nd Example. It is typical explanatory drawing for demonstrating the system configuration | structure and its operation | movement of 3rd Example of the bath system which concerns on this invention. It is typical explanatory drawing for demonstrating the pressure holding | maintenance operation | movement in the water storage tank in 3rd Example. It is a block diagram which shows the control structure provided in the bath system of 3rd Example. It is a flowchart for demonstrating the operation example of 3rd Example. It is a schematic diagram which shows a part of system configuration provided in the bath apparatus of other Examples. It is a schematic diagram which shows a part of system configuration | structure of another Example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a system configuration of a first embodiment of a bath system according to the present invention. As shown in the figure, in this bath system, a tub 1 is connected to a circulation path 2 having pipe lines 2a to 2d, and the circulation path 2 has a water level of bathtub water (tub water). A bathtub water level detecting means (water level sensor) 3 for detecting, a bath temperature sensor 27 as a bath temperature detecting means for detecting the temperature of the bathtub water, and a pump 4 having a function of circulating the bathtub water are provided. A water introduction part 5a of a pressurized container 5 having a tank 5c for storing water is connected to the circulation path 2 (pipe 2b) on the discharge side of the pump 4, and a water outlet part 5b of the pressurized container 5 is connected. An electromagnetic valve (open / close valve) 15 is interposed in the circulation path 2 (pipe 2 c) on the side, and a middle water passage 19 that guides water to the middle water outlet 18 (18 a, 18 b) via the switching valve 6. Is connected. The pipe 2d is also connected to the switching valve 6.

  The pressure vessel 5 detects an air introduction means (for example, an air introduction valve) 16 that introduces air for melting water introduced from the water introduction portion 5a of the pressure vessel 5 and the pressure in the tank 5c. A pressure sensor 17 is provided. The pump 4 is formed by a cascade pump having a function of circulating bath water while being pressurized, and the air introduced by the air introduction means 16 is added to the water introduced into the pressurized container 5 by the pump 4. It has a configuration that is melted under pressure and led out as air-pressure melted water. As described above, in this embodiment, since the single pump 4 can perform air melting and water circulation, the system configuration and the control configuration can be simplified, and the bath system can be downsized.

  The pump 4 is not necessarily formed by a cascade pump, but is formed by an appropriate pump such as a spiral pump. However, when the pump 4 is formed by a cascade pump, water containing air is sucked into the pump 4. Therefore, instead of providing the air introduction means 16 in the pressurized container 5, the pipe 2a on the suction side of the pump 4 as shown by the broken line B in FIG. It can also be provided at the position.

  The intermediate water passage 19 is branched into two branch passages 19a and 19b. A valve 29a formed by an electromagnetic valve is provided on the branch passage 19a side, and a valve 29b formed by an electromagnetic valve is provided on the branch passage 19b side. Is provided. The middle water outlet 18a on the front end side of the branch passage 19a is a faucet in the toilet that also cleans shoes such as sneakers, and the middle water outlet 18b on the front end side of the branch passage 19b is a toilet washing tank. 49 is a water inlet to 49. A water supply passage 30 is also connected to the middle water outlet 18a through an electromagnetic valve 31a, and the water supply passage 30 is connected to a toilet washing tank 49 through an electromagnetic valve 31b.

  A switch 28 is provided on the wall surface of the washroom near the arrangement portion of the middle water outlet 18a as an operation means for issuing a middle water usage command and a middle water usage stop command. 28 is provided in the remote control device 48 as shown in FIG. Further, a switch 26 is provided on the wall surface of the toilet in the vicinity of the arrangement portion of the middle water outlet 18b as an operation means for generating a middle water use command. As shown in FIG. 4, the remote controller 46 is provided.

  Further, as shown in FIG. 1, a medium water cloudy fine bubble jetting device 50 is interposed in the middle water passage 19, and the medium water cloudy fine bubble jetting device 50 is led out from the pressurized container 5. When pressurized molten water is introduced into the middle water passage 19 via the switching valve 6, a function of ejecting fine bubbles into the water in the middle water passage 19 by depressurizing and ejecting the air pressurized molten water. Have. The medium water cloudiness fine bubble jetting device 50, the switching valve 6, the electromagnetic valve 15, the pressurized container 5, the bath temperature sensor 27, the bath water level detecting means 3, and the pump 4 have a fine bubble generating function and the like. A multi-function unit 33 is formed, and the multi-function unit 33 is installed in an appropriate place such as outdoors, indoors, or near a bathtub. A control device 37 as shown in FIG. 2 is provided in the multi-function unit 33.

  Moreover, as shown in FIG. 1, the connection part of the circulation path 2 to the said bathtub 1 is provided with the fine bubble ejection apparatus 51 for bathtub cloudiness, and the fine bubble ejection apparatus 51 for bathtub cloudiness is the pressurization container 5. It has a function of ejecting fine bubbles into the water in the bathtub 1 by depressurizing and ejecting the air pressurized molten water derived from the water.

  FIG. 2 is a block diagram showing the control configuration of the bath system of this embodiment. As shown in the figure, in this embodiment, in the control device 37 of the multi-function unit 33, the fine bubble-containing middle water derivation control means 21, the air introduction valve opening / closing control means 20, and the bathtub hot water whitening operation control means 22 are provided. The remote control device 46 disposed in the toilet and the remote control device 48 disposed in the washroom are connected to the control device 37 wirelessly or by wire.

  When the medium water use switch 26 in the toilet is turned on or the medium water use switch 28 is turned on in the toilet, a medium water use instruction is added. When the detected water level detected by the bathtub water level detecting means 3 is taken in and the detected water level is equal to or higher than a predetermined medium water use set water level, the medium level through the path shown by the thick line arrow in FIG. The middle water is discharged to the water outlet 18.

  Specifically, the microbubble-containing middle water derivation control means 21 confirms the detected water level of the bathtub water level detection means 3 at the start of the middle water derivation operation (when the middle water use command is received from the switches 26 and 28). When the detected water level is equal to or higher than the set water utilization level, the opening of the valve 29a corresponding to the opening operation of the electromagnetic valve 15, the switching operation to the middle water passage 19 side of the switching valve 6, and the ON operation of the switch 28 is performed. An opening operation of the valve 29b corresponding to the operation and the ON operation of the switch 26 is performed.

  Thereafter, the detected pressure of the pressure sensor 17 is taken in, and when the value falls below a predetermined pump-on set pressure, the pump 4 is started to drive the water in the bathtub 1 into the pressurized container 5. Further, a command is given to the air introduction valve opening / closing control means 20, the air introduction valve opening / closing control means 20 opens the air introduction means (air introduction valve) 16, and the air introduced into the pressurized container 5 is pressurized to water. It melts to form air pressurized molten water, and air pressurized molten water led out from the pressurized container 5 is introduced into the middle water passage 19. Then, this air-pressurized molten water is passed through the medium-water white turbid microbubble ejection device 50 to reduce the pressure in the middle-water passage 19 (return to the normal pressure from the pressurized state), and eject the microbubbles. Water containing bubbles is led out from the middle water outlet 18.

  In addition, when the switch 26 and the switch 28 are turned off and a command to stop the use of medium water is applied, the minute bubble-containing middle water derivation control means 21 closes the valve 29a and the valve 29b and stops the pump 4 to stop the minute water. The derivation of the bubble-containing water from the medium water outlet 18 is stopped, and the solenoid valve 15 is closed. In addition, in the remote control device 46 provided in the toilet, a predetermined setting time for deriving the intermediate water from when the switch 26 is turned on (time until the stored water level in the cleaning tank of the toilet becomes an appropriate water level) is set. When the amount of water that has passed has been introduced into the washing tank of the toilet, it is automatically turned off. It may be configured so that it is automatically turned off when a predetermined set-up time for derivation of middle water elapses after the on operation, and a command to stop using the middle water is issued at the time of turning off. Further, the microbubble-containing middle water derivation control means 21 performs the switching operation of the switching valve 6 to the circulation path 2d side when the middle water derivation from the middle water outlet 18 is stopped (when the electromagnetic valve 15 is closed). It may be.

  The bathtub hot water whitening operation control means 22 is configured to open the solenoid valve 15 when the whitening switch (fine bubble generation switch) 42 of the bath remote control device 46 connected in signal to the control device 37 is turned on. The switching valve 6 is switched to the pipe line 2d side, the pump 4 is driven, the air introduction valve opening / closing control means 20 is commanded to open and close the air introduction means 16 as appropriate, and the same as described above. To form air pressurized molten water. And the air pressurization molten water is introduce | transduced into the pipe line 2d, as shown to the thick line arrow of FIG.1 (b), and the bathtub 1 is passed through the microbubble ejection apparatus 51 for bathtub cloudiness. The pressure is reduced inside (returned from the pressurized state to normal pressure) and fine bubbles are ejected. Moreover, the water of the bathtub 1 is circulated through the pipe lines 2a, 2b, 2c, and 2d of the circulation path 2 while performing these operations.

  Since the whitening switch 42 is normally operated while the user is bathing, the water level of the bath water should be suitable for bathing, but the water of the bath water is connected to the pipe 2a. When there is only a water level below the section, the circulation of the bathtub water through the circulation path 2 is not performed. Moreover, when the whitening switch 42 is turned off, the bathtub hot water whitening operation control means 22 stops the pump 4 and stops the ejection of fine bubbles into the bathtub 1.

  In addition, the microbubble-containing water formation operation as described above is performed, for example, by opening the air introduction means 16 at an appropriate timing and driving the pump 4 at an appropriate timing. There are various methods for forming bathtub water, and the method is not particularly limited and is appropriately set. Detailed description thereof is omitted here.

  The present embodiment is configured as described above, and an example of the operation of using intermediate water in the present embodiment will be described based on the flowchart of FIG. 3 and FIGS. 1 and 2. First, in step S1 in FIG. 3, for example, when the switch 26 for using the middle water in the toilet is turned on, this switch-on signal is applied to the air-melting middle water derivation control means 21 as a middle-water utilization command. In step S2, the derivation control means 21 takes in the detection signal of the bathtub water level detection means 3 and confirms whether the bathtub water level is equal to or higher than the medium water use set water level. Then, when the bathtub water level is equal to or higher than the medium water utilization set water level, the process proceeds to step S3, and when the bathtub water level is less than the medium water utilization set water level, the medium water utilization of the bathtub water is turned off at step S2a. When the use of the intermediate water is off, the water valve is opened to open the water valve 31b.

  In step S 3, the valve 29 b is opened (the water-side electromagnetic valve 31 b is closed), the switching valve 6 is switched to the middle water passage 19 side, The valve 15 is opened, and bath water (middle water) is led out from the middle water outlet port 18b through the middle water passage 19. That is, when the valve 29b and the electromagnetic valve 15 are opened and the switching valve 6 is switched to the middle water passage 19 side, the bathtub water in the pressurized container 5 is pushed by the air in the pressurized container 5, and the bathtub water is The water is introduced into the middle water passage 19 through the pipe 2c.

  Then, since the pressure in the pressurized container 5 decreases (usually, the pressure decreases immediately), the detected pressure of the pressure sensor 17 taken in by the fine bubble-containing middle water derivation control means 21 is determined in advance in step S4. Compared with the pump-on set pressure, the pressure detected by the pressure sensor 17 becomes equal to or lower than the pump-on set pressure, and the process proceeds to step S5 to start driving the pump 4 (ON; on). At this time, the microbubble-containing middle water derivation control means 21 applies an opening / closing control command for the air introduction means 16 to the air introduction valve opening / closing control means 20, and the air introduction valve opening / closing control means 20 opens / closes the air introduction means 16. Is performed at an appropriate timing.

  Along with the opening / closing operation of the air introduction means 16 and the driving of the pump 4, the pressurized container 5 compresses and melts the air into the bath water, and the air pressurized molten water passes through the middle water passage 19. By passing through the water cloudy fine bubble ejection device 50, in step S6, fine bubbles are ejected (generated). Further, as shown in step S7, the generated water containing fine bubbles is discharged (discharged) from the intermediate water outlet 18b while the piping of the intermediate water passage 19 is washed, as shown in step S7. . Then, in step S8, the fine bubble-containing middle water derivation control means 21 determines whether or not there is no bathtub water level. When it is determined that there is no bathtub water level (when there is no hot water in the bathtub 1, middle water cannot be derived). Therefore, in step S8a, the pump 4 is turned off, and the intermediate water deriving operation is terminated.

  If it is determined in step S8 that there is bathtub water, the process proceeds to step S9, and in step S9, the discharge time from the middle water outlet 18b of the medium containing fine bubbles is determined in advance. It is determined whether or not the stored water level in the cleaning tank has reached a proper water level), and the operations from step S8 to step S9 are repeated until the discharge time reaches the discharge set time. That is, while monitoring whether the bathtub 1 has run out of hot water or not, when there is hot water in the bathtub 1, the fine bubble-containing middle water is derived until the discharge set time elapses. Then, when the discharge time of the water containing fine bubbles becomes the discharge set time, the process proceeds to step S10.

  In step S9, instead of determining whether or not the discharge time from the middle water outlet 18b of the minute bubble-containing middle water has reached a predetermined discharge setting time, for example, as shown by a broken line D in FIG. A flow rate sensor is provided at the position to detect the flow rate of the middle water led out from the middle water outlet 18b, and the operations from step S8 to step S9 are repeated until the detected flow rate reaches a predetermined set flow rate. While monitoring whether the hot water in the bathtub 1 has run out or not, if there is hot water in the bathtub 1, the water contained in the fine bubbles may be led out until the detected flow rate of the flow sensor reaches the set flow rate. Good. Also in this case, when the detected flow rate of the flow sensor reaches the set flow rate, the process proceeds to step S10.

In step S10, the switch 26 is turned off after the discharge time in step S9 elapses or when the discharge flow rate reaches the set flow rate, so the fine bubble-containing middle water derivation control means 21 stops the pump 4 in step S11. (The solenoid valve 15 is also closed).

  When the switch 28 of the remote control 48 is turned on, the operation from step S1 to step S7 is performed except that the valve 29a is opened when the switch 28 is turned on instead of opening the valve 29b when the switch 26 is turned on. In step S8, the middle water is discharged while monitoring whether or not the hot water in the bathtub 1 has run out. When the switch 28 is turned off in step S10, the pump 4 is stopped in step S11. The valve 29a is closed, and the discharge of the intermediate water from the intermediate water outlet 18a is stopped. When it is determined in step S8 that the hot water in the bathtub 1 has run out, the pump 4 is turned off in step S8a and the middle water derivation is stopped. In addition, when the switch 28 is formed so as to be automatically turned off after a predetermined middle water derivation set time elapses after the on operation, the operation in step S9 is performed in the same manner as when the toilet switch 26 is operated. Done.

  4 and 5 show the system configuration of a second embodiment of the bath system according to the present invention, and FIG. 6 shows the control configuration in a block diagram. In these drawings, parts having the same names as those in the first embodiment are denoted by the same reference numerals, and redundant description thereof is omitted or simplified.

  The second embodiment is different from the first embodiment in that the water storage tank 45 for storing the intermediate water of the bathtub water is interposed in the intermediate water outlet path 19. In the second embodiment, In addition, a fine water jet device 50 for white water cloudiness is provided on the water outlet side of the water storage tank 45. In the second embodiment, the pressure sensor 17 is provided in the water storage tank 45 without providing the pressure sensor 17 in the pressurized container 5.

  In the second embodiment, the electromagnetic valve 15 is provided on the inlet side of the middle water passage 19 (the water introduction side of the water storage tank 45), and this electromagnetic valve 15 is in the closed state of the valves 29a and 29b. It plays the role of maintaining the pressure in the water storage tank 45. Further, in the second embodiment, the remote control devices 46 and 48 and the switches 26 and 28 provided in the first embodiment are omitted, and the valves 29a and 29b are not formed by electromagnetic valves, but the intermediate water outlet 18a. The valve 29a is opened when a manual plug provided in the vicinity of the faucet is operated in the opening direction, and the valve 29a is closed when the manual plug is operated in the closing direction. On the water outlet 18b side, when the toilet flushing lever is operated, the valve 29b is opened, and a predetermined amount of time has passed after the toilet flushing lever is operated (or the amount of water filling the toilet flushing tank). It is configured to close automatically when the water is discharged.

  In the second embodiment, the control configuration is substantially the same as that of the first embodiment as shown in FIG. 6, but in the second embodiment, the toilet cleaning lever is operated and the valve 29b is opened. When the manual stopper in the vicinity of the middle water outlet 18a is opened and the valve 29a is thereby opened, the water in the water storage tank 45 is pushed by the air in the water storage tank 45 to store the water. Since the pressure detected by the pressure sensor 17 provided in the water storage tank 45 flows to the water outlet side of the tank 45, the fine bubble-containing middle water outlet control means 21 reduces the detected pressure of the pressure sensor 17. Detecting that the valve 29a and the valve 29b have been opened. And the fine bubble containing middle water derivation | leading-out control means 21 confirms that the detection water level of the bathtub water level detection means 3 is more than a middle water utilization setting water level at the time of opening operation of valve 29a, 29b, and the detection pressure of the pressure sensor 17 When the pressure becomes equal to or lower than a predetermined pump-on set pressure, the driving of the pump 4 is started.

  Further, the fine bubble-containing middle water outlet control means 21 is set in advance after the manual stopper near the middle water outlet 18a is closed and thereby the valve 29a is closed, or after the operation of the toilet flush lever. Detection of the pressure sensor 17 provided in the water storage tank 45 after the valve 29b is automatically closed after a lapse of time (or when the amount of water filling the toilet flush tank is derived). When the pressure becomes equal to or higher than a predetermined pump-off set pressure, the driving of the pump 4 is stopped.

  Further, in the second embodiment, the air introduction valve opening / closing control means 20 for controlling the opening / closing of the air introduction means 16 immediately after the pump 4 is driven when the temperature detected by the bath temperature detection means 27 is equal to or higher than a preset temperature. The air introduction means 16 is opened to melt the air in the bath water. When the detected temperature of the bath temperature detecting means 27 is lower than a preset temperature, the detected pressure of the pressure sensor 17 of the water storage tank 45 is equal to or lower than the set pressure. After the start of driving of the pump 4 until the predetermined valve opening set waiting time elapses, the air introducing means (air introducing means) 16 is closed and the valve opening setting waiting time has elapsed. Then, the air introduction means 16 is opened to melt the air in the bath water.

  The second embodiment is configured as described above, and an example of the operation of using intermediate water in the second embodiment will be described based on the flowchart of FIG. 7 and FIGS. 4 to 6. In step S1 of FIG. 7, when the plug on the side of the middle water outlet 18a is opened or the toilet washing lever is operated to open the valves 29a and 29b (this opening operation is based on the pressure detected by the pressure sensor 17). When detected by the air-melting middle water derivation control means 21, the air-melting middle water derivation control means 21 captures the detection signal of the bathtub water level detection means 3 in step S2, and the bathtub water level is equal to or higher than the middle water utilization set water level. Check whether or not. Then, when the bathtub water level is equal to or higher than the medium water utilization set water level, the process proceeds to step S3, and when the bathtub water level is less than the medium water utilization set water level, the medium water utilization of the bathtub water is turned off at step S2a.

  In step S3, the bathtub water in the water storage tank 45 is pushed by the air in the water storage tank 45 and is led out from the middle water outlet 18b through the middle water passage 19. At this time, the medium water derivation control containing fine bubbles is performed. The means 21 switches the switching valve 6 to the middle water passage 19 side, and when the pressure in the water storage tank 45 (the pressure detected by the pressure sensor 17) falls below a predetermined pump-on set pressure in step S4, the step 21 In S5, the solenoid valve 15 is opened and the pump 4 is started to be driven (ON; turned on). At this time, the microbubble-containing middle water derivation control means 21 applies an opening / closing control command for the air introduction means 16 to the air introduction valve opening / closing control means 20, and the air introduction valve opening / closing control means 20 opens / closes the air introduction means 16. Is performed at an appropriate timing.

  Then, in accordance with the opening / closing operation of the air introduction means 16 and driving of the pump 4, the pressurized container 5 performs pressure melting of the air into the bath water, and the air pressurized molten water is introduced into the water storage tank 45. After that, the fine bubbles are ejected (generated) in step S6 by being led out from the water storage tank 45 and passing through the middle water cloudiness fine bubble ejection device 50 on the downstream side of the water storage tank 45. In addition, in step S7, the generated medium containing fine bubbles is discharged (discharged) from the medium water outlet 18b while the piping of the medium water passage 19 is washed in step S7.

  Then, each operation | movement of step S8-step S10 is performed similarly to 1st Example (similar to step S8-step S10 of FIG. 3).

  Also in the second embodiment, instead of determining whether or not the discharge time from the medium water outlet 18b of the fine bubble-containing middle water has reached a predetermined discharge setting time in step S9, for example, FIG. A flow rate sensor is provided at a position as shown by the broken line D to detect the flow rate of the middle water led out from the middle water lead-out port 18b, and when the detected flow rate reaches a predetermined set flow rate, the process proceeds to step S10. Also good.

  In the second embodiment, after the operation of step S10 in FIG. 7, the electromagnetic valve 15 is opened until the pressure of the pressure sensor 17 becomes equal to or higher than a predetermined set pressure in step S11, and the pump 4 is driven. By continuing, the pressure in the water storage tank 45 is increased, and the pipe line shown in the thick line in FIG. 5 (the downstream side of the electromagnetic valve 15 in the middle water passage 19, the valves 29 a in the branch passages 19 a and 19 b, 29b upstream)). In step S11, after the pressure of the pressure sensor 17 becomes equal to or higher than the pump-off set pressure, the electromagnetic valve 15 is closed in step S12, and the driving of the pump 4 is stopped.

  Even if the electromagnetic valve 15 is closed, air naturally escapes little by little from the middle water outlet 18 and the pressure in the water storage tank 45 naturally decreases. The means 21 takes in the detected pressure of the pressure sensor 17, for example, every set period, and then returns to step S11 after step S12, repeats the operations of step S11 and step S11a, and the pressure of the water storage tank 45 is set to pump off. The pressure in the pipe line shown by the thick line in FIG.

  Further, in the second embodiment, when the stopper of the wash water outlet 18a is manually opened in step S1, the valve 29a is opened, and steps S2 to S8 or S8a in FIG. The operation is performed in the same manner, and water is led out from the middle water outlet 18a while the presence or absence of hot water in the bathtub 1 is monitored. After that, when the stopper of the wash water outlet 18a is manually closed, the valve 29b is closed, and the operations of Step S11, Step S12, and Step S11a are performed as described above.

  8 and 9 show the system configuration of a third embodiment of the bath system according to the present invention, and FIG. 10 shows the control configuration in a block diagram. In these drawings, the same reference numerals are assigned to the same names as those in the first and second embodiments, and the duplicated explanation is omitted or simplified.

  The third embodiment is different from the first embodiment in that the water electromagnetic valve 15 provided in the first embodiment is omitted and the check valve 11 is provided in the pipe line 2b.

  That is, the third embodiment is almost the same as the first embodiment without performing the opening operation of the solenoid valve 15 performed when the middle water is led out or the closing operation of the solenoid valve 15 performed when the middle water is stopped in the first embodiment. The same operation is performed, and the fine-bubble-containing middle water derivation control means 21 is configured to pump when the pressure detected by the pressure sensor 17 provided in the pressure vessel 5 falls below a predetermined pump-on set pressure. 4 is driven to introduce the water in the bathtub 1 into the pressurized container 5. Then, air introduced into the pressurized container 5 is pressurized and melted in water by opening the air introduction means 16 to form air pressurized molten water, and the air pressurized molten water led out from the pressurized container 5 is Like the first embodiment, it is introduced into the middle water passage 19 and decompressed in the water passage 19 (returned to the normal pressure from the pressurized state) to eject fine bubbles, and the water contained in the fine bubbles is discharged into the middle water. Derived from the outlet 18.

  The fine bubble-containing middle water derivation control means 21 closes the valves 29a and 29b when the switch 26 and the switch 28 are turned off and a middle water use stop command is applied, and is then provided in the pressurized container 5. When the detected pressure of the pressure sensor 17 is equal to or higher than a predetermined pump-off set pressure, the driving of the pump 4 is stopped. In the third embodiment, as in the first embodiment, the remote control device 46 provided in the toilet is provided with a function for automatically turning off the switch 26. The command is generated, but the switch 28 is also formed so as to be automatically turned off when a predetermined middle water derivation set time elapses after the on operation, and the middle water is used at the time of turning off. A stop command generation may be performed. Further, the microbubble-containing middle water derivation control means 21 performs the switching operation of the switching valve 6 to the circulation path 2d side when the middle water derivation from the middle water outlet 18 is stopped (when the electromagnetic valve 15 is closed). It may be.

  The third embodiment is configured as described above, and an operation example of the third embodiment is shown in a flowchart in FIG. In the third embodiment, the operations from step S1 to step S10 in FIG. 11 are the same as those in the first embodiment except that the middle water can be derived without opening the solenoid valve 15 when the middle water is derived in step S3. Almost the same is done. In the third embodiment, after the switch 26 and the switch 28 are turned off in step S10 of FIG. 11, whether or not the detected pressure of the pressure sensor 17 of the pressurized container 5 is equal to or higher than the pump-off set pressure in step S11 of FIG. Is determined, and when the detected pressure of the pressure sensor 17 is equal to or higher than the pump-off set pressure, the process proceeds to step S12 and the pump 4 is stopped. Further, when the detected pressure of the pressure sensor 17 becomes equal to or lower than the pump-on set pressure, the pump 4 is re-driven, and the pressurized container 5 and the pipe line (the check valve 11 of the pipe line 2b arranged as shown in FIG. The operation of increasing the pressure in the space from the installation position to the pressurized container 5 and in the pipe 2c, the middle water passage 19, and the valves 29a and 29b of the branch passages 19a and 19b) is performed.

  In the third embodiment, since the solenoid valve 15 provided in the first embodiment is omitted, the number of parts can be reduced by that amount, and the control configuration of the solenoid valve 15 is not required, and the cost is reduced with a simpler configuration. Can be achieved. In addition, the check valve 11 can be provided to keep the pressure in the pressurized container 5 at a high level that is about a predetermined pump-on set pressure.

  In addition, this invention is not limited to the said Example, It sets suitably. For example, in a bath system, as shown in FIG. 12A, a jet bath ejection device 52 that jets a jet jet into the bathtub 1 may be provided. Further, as shown in FIG. 12B, instead of providing the pressure sensor 17 in the tank 5c of the pressurized container 5, a water level detection electrode 54 is provided to detect the water level in the tank 5c, and the detection of the water level detection electrode 54 is performed. The driving start and stop of the pump 4 may be performed based on the water level. That is, for example, when the detected water level of the water level detection electrode 54 becomes equal to or lower than a predetermined pump-on set water level, the pump 4 is started to drive, and the detected water level of the water level detection electrode 54 is set to a predetermined pump-off set water level. The pump 4 may be stopped when exceeded.

  Furthermore, a heat source device may be connected to the bath system, or a heating system or a solar heat collector may be connected via the heat source device. The heat source device may be a device that heats water by gas combustion to make hot water, may be a device that burns fuel other than gas to heat water to make water, or uses water to generate electricity. It is good also as an apparatus which heats and makes hot water, The details are set suitably.

  Furthermore, as shown in FIG. 13, it is also possible to form a bath system in which the multifunction unit 33 is incorporated in the heat source machine. In other words, a recirculation exchanger 68 for replenishing the water in the bathtub 1 is provided in the circulation path 2 to form a recirculation circulation path (the circulation path 2 is regarded as a recirculation circulation path), and this recirculation circulation path is multifunctional. A configuration in which the unit 33 is interposed may be adopted. In this example, the air introduction means 16 is formed by an air introduction valve and is provided in the pipe 2 a of the circulation path 2, and a pouring passage 74 is connected to the air introduction means 16. Moreover, although the bath temperature sensor 27 is provided in the running water switch 53, it may be provided on the outlet side of the reheating heat exchanger 68 as indicated by a broken line in the figure.

  Briefly explaining the system configuration shown in the figure, a hot water supply burner 62 having three combustion surfaces, a reheating burner 63, a hot water supply heat exchanger 67, a reheating heat exchanger 68, and a combustion fan are provided in the appliance case 61. 64, a gas solenoid valve 70 and a gas proportional valve 78 are interposed in a gas pipe 69 for supplying fuel to the burners 62 and 63. A water supply passage 65 is provided on the inlet side of the hot water supply heat exchanger 67, and a hot water supply passage 66 is connected to the outlet side of the hot water supply heat exchanger 67. Reference numerals 71 and 72 denote a thermistor, reference numeral 73 denotes a flow rate detecting means, reference numeral 75 denotes a pouring solenoid valve, reference numeral 76 denotes a drain pipe, and reference numeral 77 denotes a drain neutralizer. In such a bath system, the multi-function unit 33 may be provided in the appliance case 61.

  Moreover, as shown in FIG. 13, the connection part of the bathtub 1 and the circulation path 2 may be made into one place, and the pipe line 2a and the pipe line 2d of the circulation path 2 may be connected in close proximity via a connector. This configuration can also be applied to the system configurations of the first to third embodiments.

  Further, in the configuration in which the water storage tank 45 is provided in the middle water passage 19 as in the second embodiment, the water storage tank 45 is turned on when the inside of the water storage tank 45 is equal to or lower than a predetermined ON driving pressure. A pressure switch 43 that turns off when a predetermined off driving pressure higher than the off driving pressure is reached may be provided (see the broken line in FIG. 5). In this case, the microbubble-containing middle water derivation control means starts driving the pump 4 when the ON signal of the pressure switch 43 is applied, and drives the pump 4 when the OFF signal of the pressure switch 43 is applied. The other operations are performed in substantially the same manner as in the second embodiment.

  Even in this configuration, the air introduction valve opening / closing control means 20 opens the air introduction means 16 immediately after the pump 4 is driven when the temperature detected by the bath temperature detection means 27 is equal to or higher than a preset temperature. When the temperature detected by the bath temperature detecting means 27 is lower than a preset temperature, the air introduction valve opening / closing control means 20 is in the air until the valve opening set waiting time elapses from the start of driving the pump. It is preferable that after the introduction means is closed and the valve opening set waiting time elapses, the air introduction means 16 is opened to melt the air into the bath water. Further, when the pressure switch 43 of the water storage tank 45 repeatedly performs the on / off operation more than a predetermined number of times within a predetermined setting determination time, immediately after that, the air introduction means 16 is opened and the air is supplied to the bath water. It is good to melt.

  Further, for example, as shown by a broken line in FIG. 8 (a), an ozone accommodating portion 55 that accommodates ozone is connected to the air introducing means 16, and an ozone introducing means that introduces ozone from the air introducing means 16 is formed. Instead of this, ozone may be introduced.

  Further, the configuration and number of the intermediate water outlet 18, the arrangement location, and the like, and the configuration and number of the switches 26 and 28, the arrangement location, etc. are not particularly limited and are set as appropriate. The present invention can be applied to a bath system.

  INDUSTRIAL APPLICABILITY Since the remaining hot water in the bathtub can be effectively reused by taking advantage of the cleaning effect provided by the fine bubble generating function provided in the system, it can be used as a bath system provided in homes or accommodation facilities.

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation path 3 Bathtub water level detection means 4 Pump 5 Pressurized container 6 Switching valve 15 Electromagnetic valve 16 Air introduction means 17 Pressure sensor 18, 18a, 18b Middle water outlet 19 Middle water passage 20 Air introduction valve opening / closing control means 21 Microbubble-containing medium water derivation control means 22 Bathtub hot water whitening operation control means 26, 28 Switch 27 Bath temperature sensor 28 Pressure switch 29a, 29b Valve 33 Multi-function unit 37 Control device 50 Fine water jetting device for cloudy white water 51 For bath cloudiness Microbubble ejector 55 Ozone storage 68 Reheating exchanger

Claims (9)

  A pump having a function of circulating bathtub water is provided in a circulation path connected to the bathtub, and a water introduction part of a pressurized container having a tank for storing water is connected to the circulation path on the discharge side of the pump. A water passage for guiding water to a middle water outlet through a switching valve is connected to the circulation path on the water outlet portion side of the pressurized container, and the bathtub water level detection detects the water level in the bathtub. Means and air introduction means for introducing air for melting water introduced from the water introduction portion of the pressurized container, and the air introduced by the air introduction means is compressed by the pump. Having a configuration in which it is melted under pressure into water introduced into the container and led out as air pressurized melted water, and the air when the pressurized melted water is introduced into the intermediate water passage through the switching valve. The water in the middle water passage is depressurized and ejected from the pressurized water. A fine bubble jetting device for white water cloudiness for jetting fine bubbles is interposed in the neutral water passage, and the air pressurized molten water is decompressed and jetted at a connection portion of the circulation path to the bathtub. The bathtub water level is provided when a microbubble ejection device for turbidity of a bathtub that ejects microbubbles into water in the bathtub is provided, and when a medium water use command is applied or when the operation of opening the medium water outlet is performed When the detected water level detected by the detection means is equal to or higher than a predetermined medium water utilization set water level, the intermediate water passage allows air pressurized molten water led out of the pressurized container by driving the pump to pass through the switching valve. When the medium water discharge stop command is applied, or the medium water is discharged from the medium water outlet by causing fine bubbles to be ejected from the medium water cloudiness fine bubble ejection device. Closing action of outlet Bath system when made, characterized in that the fine-bubble-containing water deriving control means for stopping derived from the water outlet of the water containing the fine gas bubbles is provided.   The pressure detecting means for detecting the pressure in the pressurized container has a fine bubble-containing middle water derivation controlling means, wherein the pressure in the pressurized container detected by the pressure detecting means is equal to or lower than a predetermined pump-on set pressure. The pump starts to be driven when the intermediate water use stop command is applied, the intermediate water outlet is closed, and the pressure in the pressurized container is higher than the pump-on set pressure in advance. 2. The bath system according to claim 1, wherein the driving of the pump is stopped at any predetermined set timing when the pressure becomes equal to or higher than the set pump-off set pressure.   The intermediate water passage is provided with a water storage tank for storing intermediate water, and the microbubble-containing intermediate water derivation control means is configured to pump when the pressure in the water storage tank is equal to or lower than a predetermined pump-on set pressure. 2. The bath according to claim 1, wherein the driving of the pump is stopped when the pressure in the water storage tank becomes equal to or higher than a predetermined pump-off setting pressure higher than the pump-on setting pressure. system.   A water storage tank is provided in the middle water passage to store the middle water. The water storage tank is turned on when the inside of the water storage tank is equal to or lower than a predetermined on driving pressure, and is higher than the on driving pressure. A pressure switch is provided that turns off when the pressure is higher than a predetermined predetermined off-drive pressure, and the microbubble-containing middle water derivation control means starts driving the pump when an on signal of the pressure switch is applied, and the pressure The bath system according to claim 1, wherein the pump is stopped when a switch-off signal is applied.   The air introduction means is closed until a predetermined valve opening set waiting time elapses from the start of driving of the pump, and the air introducing means is opened after the valve opening setting waiting set time elapses so that the air is bathed. 5. The bath system according to claim 3, further comprising air introduction valve opening / closing control means for melting in water.   When the pressure switch of the water storage tank is repeatedly turned on and off a predetermined number of times within a predetermined setting judgment time, immediately after that, the air introduction means is opened to melt the air into the bath water. The bath system according to claim 4.   It has bath temperature detection means for detecting the temperature of the bath water. When the detected temperature of the bath temperature detection means is equal to or higher than a preset temperature, the air introduction means is opened immediately after the pump is driven to melt the air into the bath water. The bath system according to any one of claims 1 to 6, wherein:   A heat exchanger for heating the circulating water is interposed in the circulation path, and the circulation path forms a reheating circulation path for heating and circulating the bath water circulating through the circulation path by driving a pump. The bath system according to any one of claims 1 to 7, characterized in that:   9. The ozone containing part for containing ozone is connected to the air introducing means, and ozone introducing means for introducing ozone from the air introducing means is provided. Bath system as described in one.

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