JP2006122835A - Hydrogen water disposal method and hydrogen water feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means which enables a safe disposal of a hydrogen gas filled in a gas-liquid mixing tank. <P>SOLUTION: An electric two-way valve 20 is opened to operate a circulating pump 19, and bath water in a bathtub 13 is pressure-injected into the gas-liquid mixing tank 12 where the hydrogen gas remains. When the bath water is injected from a water supply nozzle 17 into the gas-liquid mixing tank 12, the bath water where the hydrogen gas is solved is pooled inside the gas-liquid mixing tank 12. Then, a first electric three-way valve 25 is opened at a water pipe 24 side to discharge the bath water where the hydrogen gas is solved from the water pipe 24 to sewerage etc. gradually. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hydrogen water disposal method and a hydrogen water supply apparatus capable of safely discarding hydrogen water containing hydrogen gas.

  As a hydrogen-reduced water treatment apparatus in which hydrogen gas is dissolved in hot water in a bathtub and circulated in the bathtub, there is a patent application previously filed by the applicant of the present application (Patent Document 1). In this apparatus, a circulation pump and a gas-liquid mixing tank are provided in a bath water circulation path connected to a bathtub. Then, the circulating pump is operated to circulate the bath water in the bathtub, and the hydrogen gas supplied from the hydrogen cylinder is dissolved in the bath water in the gas-liquid mixing tank, and the bath water in which the hydrogen gas is dissolved is put in the bathtub. Circulated.

  As described in Patent Document 1, hydrogen-reduced water has an effect of preventing the propagation of various bacteria and is effective for preventing slimming of a bathtub or the like. Further, SOD (active oxygen removing enzyme) activity is effective for human health. Contributes to improvement. In particular, water containing active hydrogen exhibits reducibility and exhibits SOD-like activity, thus detoxifying skin aging promoting substances such as lipid peroxide (produced by human exposure to ultraviolet rays), and Even if taken, it is effective for all diseases.

  Therefore, by supplying hydrogen-reduced water or water containing active hydrogen into the bathtub using the above apparatus, it is possible to suppress the sliminess of the bathtub and contribute to the beauty and health promotion of the bather.

  However, if the hydrogen gas filled in the gas-liquid mixing tank is not completely consumed and the operation of the hydrogen-reduced water treatment device is completed, there is a case where it is desired to dispose of the hydrogen gas without leaving it until the next time. is there. In such a case, if the hydrogen gas in the gas-liquid mixing tank is released into the atmosphere at once, there is a risk of combustion and explosion due to mixing of the hydrogen gas and oxygen in the air. Therefore, a method for safely discarding the remaining hydrogen gas has been demanded.

JP 2004-66071 A

  An object of the present invention is to provide a hydrogen water disposal method and a hydrogen water supply device capable of safely discarding hydrogen gas in a gas-liquid mixing tank.

  In the hydrogen water disposal method according to claim 1 of the present invention, the hydrogen gas in the gas-liquid mixing tank is dissolved in water by supplying water into the gas-liquid mixing tank filled with hydrogen gas, It is characterized by draining water in which gas is dissolved to the outside of the gas-liquid mixing tank.

  If the hydrogen gas filled in the gas-liquid mixing tank 12 is released into the atmosphere as a gas, there is a high possibility that it will be released all at once and the hydrogen concentration will be in the flammable range, and there is a risk that the hydrogen gas will burn or explode. In the hydrogen water disposal method according to the first aspect of the invention, since the hydrogen gas in the gas-liquid mixing tank is dissolved and drained, hydrogen is gradually discharged from the gas-liquid mixing tank to the outside together with water. be able to. In addition, according to the method of the present invention, since hydrogen gas is dissolved in water, it takes time until it comes out into the air as a gas, and because there is water, the gas temperature is low, and combustion or explosion occurs. Risk is very low.

  According to a second aspect of the present invention, there is provided a hydrogen water supply device comprising: a first water flow path for injecting water into a gas-liquid mixing tank filled with hydrogen gas; and water in which hydrogen gas is dissolved in the gas-liquid mixing tank. In a hydrogen water supply apparatus including a second water flow path to be supplied and a pump for passing water through the water flow paths and the gas-liquid mixing tank, the water is supplied into the gas-liquid mixing tank filled with hydrogen gas. The apparatus is characterized by comprising means for draining the water in which the hydrogen gas is dissolved in the gas-liquid mixing tank from the drain pipe to the outside of the gas-liquid mixing tank.

  In the hydrogen water supply apparatus according to claim 2 of the present invention, since the hydrogen gas in the gas-liquid mixing tank is dissolved and drained, hydrogen is gradually discharged from the gas-liquid mixing tank to the outside together with water. be able to. In addition, according to the method of the present invention, since hydrogen gas is dissolved in water, it takes time until it comes out into the air as a gas, and because there is water, the gas temperature is low, and combustion or explosion occurs. Risk is very low.

  An embodiment of the hydrogen water supply apparatus according to claim 3 of the present invention is characterized in that the gas-liquid mixing tank is connected to a bathtub by a first water channel and a second water channel.

  In such an embodiment, since the water in the bathtub circulates between the bathtub and the gas-liquid mixing tank, water in which hydrogen gas is dissolved in the gas-liquid mixing tank is supplied into the bathtub. Therefore, it is effective in preventing the propagation of various bacteria in the bathtub and preventing the slimming of the bathtub, and can contribute to the health promotion of bathers by the SOD-like activity. In particular, in this embodiment, since hydrogen gas is filled in the gas-liquid mixing tank in a state of being blocked from air and oxygen, oxygen dissolved in hydrogen gas (active oxygen) ) Is less likely to be included.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following examples, and the design can be changed as appropriate according to the application.

  FIG. 1 is a schematic sectional view showing a hydrogen water supply apparatus 11 according to an embodiment of the present invention. The hydrogen water supply device 11 is configured to supply hydrogen water such as water in which hydrogen or active hydrogen is dissolved into the bathtub. The structure of the hydrogen water supply device 11 will be described with reference to FIG.

  The gas-liquid mixing tank 12 is an apparatus that generates hydrogen water by filling hydrogen gas, dropping water (bath water) into the gas-liquid mixing tank 12, and dissolving the hydrogen gas in water. The gas-liquid mixing tank 12 and the bath adapter 14 provided in the bathtub 13 are connected by a bath water circulation path including a suction pipe 15 and a supply pipe 16. The suction pipe 15 connects between the suction port 14a of the bus adapter 14 and a water supply nozzle 17 provided on the upper surface of the gas-liquid mixing tank 12. The suction pipe 15 includes a circulation pump 19, a water flow switch 18 and two electric motors. A valve 20 is provided. The supply pipe 16 connects the pressure release nozzle 14 b of the bus adapter 14 and the bottom surface of the gas-liquid mixing tank 12. In the bus adapter 14, a porous body 21 made of a material such as ceramic is provided in front of the pressure release nozzle 14b.

  The gas-liquid mixing tank 12 includes a liquid level detector (water level electrode) 22 for detecting the liquid level (water level) in the tank. A baffle plate 23 is provided near the bottom of the gas-liquid mixing tank 12 so as to cover the bottom of the tank, and the bath water supplied from the water supply nozzle 17 is immediately discharged from the supply pipe 16. Is preventing. Further, a tank drain pipe 44 is housed in the gas-liquid mixing tank 12 along the vertical direction, and the lower end of the tank drain pipe 44 is located near the bottom surface of the gas-liquid mixing tank 12. The upper end of the tank drain pipe 44 passes through the wall surface of the gas-liquid mixing tank 12 and exits to the outside, and the tank drain pipe 44 is provided with a tank drain electromagnetic valve 45 outside the gas-liquid mixing tank 12. .

  Below the gas-liquid mixing tank 12, a first electric three-way valve 25 is provided in the supply pipe 16, and a drain pipe 24 branches from the first electric three-way valve 25. The first electric three-way valve 25 is normally open on the gas-liquid mixing tank 12 side, opened on the bus adapter 14 side and closed on the drain pipe 24 side, and closed on the bus adapter 14 side on the drain pipe 24 side. It is possible to switch between the open state at the side and the closed state at both the bus adapter 14 side and the drain pipe 24 side.

  The electrolytic cell 26 electrolyzes water to generate hydrogen gas and oxygen gas. The electrolytic cell 26 is divided into left and right by an electrolyte membrane 31. The electrolyte membrane 31 has a characteristic of allowing water to permeate but not hydrogen gas or oxygen gas. A negative electrode 32a is provided in one chamber (hereinafter referred to as a right chamber) of the electrolytic cell 26, and a positive electrode 32b is provided in the other chamber (hereinafter referred to as a left chamber).

  The upper surface of the right chamber of the electrolytic cell 26 and the upper surface of the gas-liquid mixing tank 12 are connected by a hydrogen gas supply pipe 27, and the right chamber of the electrolytic cell 26 and the gas-liquid mixing tank 12 communicate with each other. A second electric three-way valve 28 is provided in the middle of the hydrogen gas supply pipe 27, an exhaust pipe 29 branches off from the second electric three-way valve 28, and an air vent 30 is provided at the tip of the exhaust pipe 29. ing. The second electric three-way valve 28 is normally open on the gas-liquid mixing tank 12 side, the electrolytic cell 26 side is opened and the air vent 30 side is closed, and the electrolytic cell 26 side is closed and the air vent 30 side is opened. The state is switched to a state closed on both the electrolytic cell 26 side and the air vent 30 side. Further, the electrolytic cell 26 includes a liquid level detector (water level electrode) 34 for detecting the water level inside.

  On the other hand, an oxygen exhaust port 33 is provided on the upper surface of the left chamber of the electrolytic cell 26, and the oxygen exhaust port 33 is open to the atmosphere. The front end (discharge port) of the water supply pipe 35 connected to the city water or the like on the water inlet side is positioned vertically above the oxygen exhaust port 33 opened in a funnel shape. An ion exchange resin 37 and a water replenishing electromagnetic valve 38 are provided so that pure water can be supplied from the water supply pipe 35 to the electrolytic cell 26.

  The hydrogen water supply device 11 is installed outdoors, and its operation is controlled by a built-in controller 39 (control means). The remote controller 40 is used to remotely operate the hydrogen water supply device 11 and includes a hydrogen operation switch 42 and a hydrogen operation stop switch 43. The remote controller 40 and the controller 39 are connected through a signal line 41. The hydrogen operation switch 42 is a switch for starting or stopping hydrogen operation for dissolving hydrogen gas in water in the gas-liquid mixing tank 12, and the hydrogen operation stop switch 43 is in the gas-liquid mixing tank 12. This is a switch for discarding the remaining hydrogen gas.

  FIG. 2 is a functional block diagram showing an electrical configuration around the controller 39 in the hydrogen water supply apparatus 11. The controller 39 performs microcomputer control of the hydrogen water supply device 11 in accordance with an operation processing program stored in a memory such as a ROM or an EEPROM. That is, as shown in FIG. 2, the controller 39 receives signals from the hydrogen operation switch 42, the hydrogen operation stop switch 43, the liquid level detector 22 and the liquid level detector 34, and in accordance with the signals, the circulation pump is operated according to a predetermined procedure. 19, the first electric three-way valve 25, the second electric three-way valve 28, the electric two-way valve 20, the tank drain electromagnetic valve 45, the water replenishing electromagnetic valve 38, and the applied voltage to both electrodes 32a and 32b of the electrolytic cell 26 are controlled. Thus, hydrogen gas is generated and the gas-liquid mixing tank 12 is filled with hydrogen gas, hydrogen water is produced in the gas-liquid mixing tank 12, or the hydrogen gas in the gas-liquid mixing tank 12 is discarded. To do.

  FIG. 3 is a flowchart showing the hydrogen water supply operation of the hydrogen water supply device 11 by the controller 39. Hereinafter, from the start of hydrogen operation to the end of operation in the hydrogen water supply apparatus 11 will be described with reference to FIG. While the hydrogen operation of the hydrogen water supply device 11 is stopped, the circulation pump 19 is stopped, the first electric three-way valve 25 is closed on the bus adapter 14 side and the drain pipe 24 side, and the second electric three-way The valve 28 is closed on the air vent 30 side and the electrolytic cell 26 side, and the electric two-way valve 20, the tank drain electromagnetic valve 45, and the water replenishing electromagnetic valve 38 are all closed. Further, it is assumed that the gas-liquid mixing tank 12 is empty (that is, is filled with air).

  When the hydrogen operation switch 42 of the remote controller 40 is pressed and turned on (step S11), the hydrogen water supply device 11 starts operation according to the flowchart of FIG. When the operation of the hydrogen water supply device 11 is started, first, the circulation pump 19 starts the operation (step S12). At the same time, the first electric three-way valve 25 is switched to open on the bus adapter 14 side and closed on the drain pipe 24 side, and the second electric three-way valve 28 is switched to open on the air vent 30 side. The liquid mixing tank 12 and the electrolytic cell 26 are shut off (step S13), and the electric two-way valve 20 is opened (step S14).

  When the circulation pump 19 starts operation in this manner, the bath water in the bathtub 13 is sucked into the suction pipe 15 from the suction port 14 a and dropped into the gas-liquid mixing tank 12 from the water supply nozzle 17. At this time, since the second electric three-way valve 28 is open on the air vent 30 side, the air in the gas-liquid mixing tank 12 is discharged from the air vent 30 to the atmosphere by the amount of bath water dropped into the gas-liquid mixing tank 12. The water level in the gas-liquid mixing tank 12 gradually rises.

  Thus, while the bath water is dropped into the gas-liquid mixing tank 12, the controller 39 detects the water level in the gas-liquid mixing tank 12 by the liquid level detector 22, and whether or not the gas-liquid mixing tank 12 is full. Is monitored (step S15).

  When the gas-liquid mixing tank 12 is full and all the air in the gas-liquid mixing tank 12 is discharged to the outside, the circulation pump 19 is stopped (step S16) and the electric two-way valve 20 is closed (step). S17). Further, the first electric three-way valve 25 is closed on both the bus adapter 14 side and the drain pipe 24 side, the second electric three-way valve 28 is switched so as to be opened on the electrolytic cell 26 side, and the air vent 30 side is It is closed (step S18).

  Next, the controller 39 applies a DC voltage between the negative electrode 32a and the positive electrode 32b of the electrolytic cell 26 to energize it (step S19). However, when the liquid level detector 34 detects that the water level in the electrolytic cell 26 is below a certain level, the water replenishing electromagnetic valve 38 is opened to replenish water into the electrolytic cell 26 from the water supply pipe 35, and the electrolytic cell 26. When water of a predetermined level or higher is supplied, the water replenishing electromagnetic valve 38 is closed.

  When electricity is passed between both electrodes 32a and 32b of the electrolytic cell 26, the water in the electrolytic cell 26 is electrolyzed to generate hydrogen gas and oxygen gas. The generated hydrogen gas and oxygen gas are separated from the right chamber by the electrolyte membrane 31. Separated into the left ventricle. The oxygen gas generated in the left chamber escapes from the oxygen exhaust port 33 and is released into the atmosphere.

  Although hydrogen gas is generated in the right chamber of the electrolytic cell 26, at this time, the electric two-way valve 20 and the tank drain electromagnetic valve 45 are still closed, and the first electric three-way valve 25 is connected to the bus adapter 14 side and the drain pipe 24 side. However, since it is closed, hydrogen gas cannot be supplied into the gas-liquid mixing tank 12 with full water. Therefore, after energizing both the electrodes 32a and 32b of the electrolytic cell 26, the tank drain electromagnetic valve 45 is opened (step S20).

  Since the gas-liquid mixing tank 12 is closed except for the hydrogen gas supply pipe 27 and the tank drain electromagnetic valve 45, the water in the gas-liquid mixing tank 12 is equivalent to the amount of hydrogen gas supplied from the electrolytic cell 26 through the hydrogen gas supply pipe 27. Is drained from the tip of the tank drain pipe 44 into the sewer.

  Thus, the water in the gas-liquid mixing tank 12 is gradually replaced with hydrogen gas generated in the electrolytic cell 26, and the water in the gas-liquid mixing tank 12 is drained from the tank drain pipe 44 and the water level is lowered. When the liquid level detector 22 detects that the gas-liquid mixing tank 12 is below a certain water level (or a certain amount of water) (YES in step S21), hydrogen gas is introduced into the gas-liquid mixing tank 12. It is determined that the battery has been filled, and energization between the electrodes 32a and 32b in the electrolytic cell 26 is stopped to stop the electrolysis of water (step S22). Thus, most of the gas-liquid mixing tank 12 is occupied by hydrogen gas. However, the water in the gas-liquid mixing tank 12 is not completely drained so that air does not flow into the gas-liquid mixing tank 12 from the tank drain pipe 44.

  If hydrogen gas is filled in the gas-liquid mixing tank 12 in this way, the hydrogen gas generated in the electrolytic cell 26 is filled in the gas-liquid mixing tank 12 without coming into contact with air or oxygen. Therefore, there is no fear that the hydrogen gas reacts with oxygen and burns or explodes, and the safety of the hydrogen water supply device 11 can be improved.

  Thereafter, the first electric three-way valve 25 is switched to open on the bus adapter 14 side, and the second electric three-way valve 28 is switched to close the state on either the electrolytic cell 26 side or the air vent 30 side (step S23), The valve 45 is closed (step S24). Next, the electric two-way valve 20 is opened (step S25), and the circulation pump 19 is turned on (step S26).

  At this time, the second electric three-way valve 28 is closed on both the electrolytic cell 26 side and the air vent 30 side, and the tank drain electromagnetic valve 45 is also closed. Therefore, when the circulation pump 19 is operated, the gas-liquid mixing tank 12, the bathtub 13, The bath water circulates between them and hydrogen water in which hydrogen gas is dissolved is circulated to the bathtub 13. That is, when the circulation pump 19 is operated, the bath water in the bathtub 13 is sucked into the suction pipe 15 from the suction port 14 a of the bath adapter 14 and dropped into the gas-liquid mixing tank 12 from the water supply nozzle 17. At this time, the bath water in the gas-liquid mixing tank 12 is stirred and hydrogen gas is dissolved in the bath water, and the bath water in which hydrogen gas is dissolved accumulates in the gas-liquid mixing tank 12. On the other hand, the bath water in which the hydrogen gas accumulated in the gas-liquid mixing tank 12 is dissolved is sent out from the supply pipe 16 to the bathtub 13, and as a fine jet from the pressure release nozzle 14 b of the bath adapter 14 through the porous body 21. 13 is discharged.

  When the hydrogen gas in the gas-liquid mixing tank 12 is dissolved in the bath water in this way, the hydrogen gas in the gas-liquid mixing tank 12 is consumed and the water level in the gas-liquid mixing tank 12 rises. When the liquid level detector 22 determines that the gas-liquid mixing tank 12 is full, the circulation pump is stopped, the electric two-way valve 20 is closed, and the first electric three-way valve 25 is connected to the bus adapter 14 side. And the drainage pipe 24 side, and the operation of the hydrogen water supply device 11 is finished. Alternatively, when the gas-liquid mixing tank 12 is full of water, the operations after step S16 may be repeated.

  After the hydrogen operation is performed in this way, when the hydrogen operation switch 42 of the remote controller 40 is pressed again and the hydrogen operation switch 42 is turned off (step S27), the circulation pump 19 is stopped (step S28). The electric two-way valve 20 is closed, and the first electric three-way valve 25 is closed on the bus adapter 14 side and the drain pipe 24 side.

  Even if the hydrogen operation is stopped as described above, if the hydrogen gas in the gas-liquid mixing tank 12 is not used up, the hydrogen gas remains in the gas-liquid mixing tank 12. However, there are cases where it is desired to discard the hydrogen gas remaining in the gas-liquid mixing tank 12. For example, before going to bed, it is desirable to drain the hydrogen gas from the gas-liquid mixing tank 12 and empty the gas-liquid mixing tank 12 for safety. Therefore, the hydrogen water supply device 11 is provided with a hydrogen operation stop switch 43 in the remote controller 40, and when the hydrogen operation stop switch 43 is pressed, the hydrogen gas in the gas-liquid mixing tank 12 is discarded.

  FIG. 4 is a flowchart showing a process when the process of discarding the hydrogen gas in the gas-liquid mixing tank 12 by pressing the hydrogen operation stop switch 43 is executed. Hereinafter, the disposal process of hydrogen gas will be described with reference to the flowchart of FIG.

  When the hydrogen operation stop switch 43 of the remote controller 40 is pressed (step S31), the liquid level detector 22 detects the water level in the gas-liquid mixing tank 12 (step S32), thereby remaining in the gas-liquid mixing tank 12. The capacity of the hydrogen gas is measured, and it is determined whether or not hydrogen gas remains in the gas-liquid mixing tank 12 (step S33). At this time, if it is determined that no hydrogen gas remains in the gas-liquid mixing tank 12, the processing is terminated as it is.

  If hydrogen gas remains in the gas-liquid mixing tank 12, it is determined whether or not bathing is in progress (step S34). In order to determine whether or not the user is taking a bath, it is preferable to determine whether or not the power source of the bath water heater is turned on. However, a bath monitoring device for monitoring a bather's accident is also provided in the bathroom. If it is installed in the bath, it may be determined by a bath monitoring device.

  When there is a bather, it waits until bathing is completed, and when it is judged that bathing has ended, the electric two-way valve 20 is opened (step S35). At this time, the first electric three-way valve 25 is closed on both the bus adapter 14 side and the drain pipe 24 side, and the second electric three-way valve 28 is closed on both the electrolytic cell 26 side and the air vent 30 side, and the tank drain electromagnetic valve 45 is also closed.

  Next, when the circulation pump 19 is turned on and operated (step S36), the bath water in the bathtub 13 is sucked into the suction pipe 15 from the suction port 14a of the bath adapter 14, and is fed into the gas-liquid mixing tank 12 from the water supply nozzle 17. Dropped. In this way, when the bath water is pressurized and injected into the gas-liquid mixing tank 12, the hydrogen gas in the gas-liquid mixing tank 12 is forcibly dissolved in the bath water. The bath water in which hydrogen gas is dissolved in this way is stored in the gas-liquid mixing tank 12.

  Thus, as the hydrogen gas dissolves in the bath water, the water level in the gas-liquid mixing tank 12 rises, so that the liquid level detector 22 detects the water level in the gas-liquid mixing tank 12 (step S37). The volume of hydrogen gas remaining in the gas-liquid mixing tank 12 can be determined. Therefore, the remaining amount of hydrogen gas in the gas-liquid mixing tank 12 is monitored by detecting the water level in the gas-liquid mixing tank 12 (step S38), and there is almost no remaining hydrogen gas in the gas-liquid mixing tank 12. When it is determined that the circulation pump 19 has been reached, the circulation pump 19 is stopped (step S39), and the electric two-way valve 20 is closed (step S40).

  Next, the first electric three-way valve 25 is switched so as to be opened on the drain pipe 24 side, and the second electric three-way valve 28 is switched so as to be opened on the air vent 30 side (step S41). The bath water in which the hydrogen gas in the tank 12 is dissolved is discharged from the drain pipe 24.

  In this way, while discharging the bath water in the gas-liquid mixing tank 12 and monitoring the water level in the gas-liquid mixing tank 12 (step S42), it is determined whether or not the bath water remains in the gas-liquid mixing tank 12 (step S43). ). If it is determined that the gas-liquid mixing tank 12 is empty, the first electric three-way valve 25 is closed on the bus adapter 14 side and the drain pipe 24 side, and the second electric three-way valve 28 is closed on the electrolytic cell 26. And the air vent 30 side are closed (step S44), and the hydrogen operation stopping process is terminated.

  If the hydrogen gas filled in the gas-liquid mixing tank 12 is released into the atmosphere as a gas, there is a high possibility that it will be released all at once and the hydrogen concentration will be in the flammable range, and there is a risk that the hydrogen gas will burn or explode. By dissolving hydrogen gas in water and gradually draining it as in the invention, the amount of hydrogen discharged from the gas-liquid mixing tank 12 to the outside can be made little by little. In addition, according to the method of the present invention, since hydrogen gas is dissolved in water, it takes time until it comes out into the air as a gas, and because there is water, the gas temperature is low, and combustion or explosion occurs. Risk is very low.

  Since the hydrogen gas capacity in the electrolytic cell 26 is smaller than that of the gas-liquid mixing tank 12, the hydrogen gas remaining in the electrolytic cell 26 may be left as it is. Alternatively, an exhaust port for releasing hydrogen gas may be provided in the right chamber on the electrolytic cell 26 side, and the remaining hydrogen gas may be released into the atmosphere by opening the exhaust port.

  However, when the hydrogen gas remaining in the electrolytic cell 26 is also safely processed, the second electric three-way is immediately after turning on the hydrogen operation stop switch 43 (in the middle of steps S31 and S32 in FIG. 4). After switching the valve 28 to be opened on the electrolytic cell 26 side, water is injected from the water supply pipe 35 into the electrolytic cell 26 and the hydrogen gas in the electrolytic cell 26 is discharged into the gas-liquid mixing tank 12. Good. After this, if the process after step S32 in FIG. 4 is executed, the hydrogen gas remaining in the electrolytic cell 26 can also be safely processed on the gas-liquid mixing tank 12 side.

  As a modification of the above embodiment, the water to be filled in the gas-liquid mixing tank 12 before filling the hydrogen gas or the water supplied to the gas-liquid mixing tank 12 when the hydrogen gas is discarded is not obtained from the bathtub, You may make it supply from a pipe | tube etc. In the above embodiment, it is assumed that the gas-liquid mixing tank 12 is initially empty. However, when water remains in the gas-liquid mixing tank 12, the water does not drain, What is necessary is just to make it refill there. In particular, when the hydrogen gas in the gas-liquid mixing tank 12 is used up, the gas-liquid mixing tank 12 is filled with water. In this case, the process may be started from step S14 in FIG. .

  In the above embodiment, the tank drain pipe 44 and the drain pipe 24 are provided separately, but only one of them may be provided and shared.

  The water level detection means for the gas-liquid mixing tank 12 and the electrolytic cell 26 is not limited to the liquid level detector using the water level electrode, and other means may be used as long as the water level can be known. In addition, when filling the gas-liquid mixing tank 12 with hydrogen gas, in the above embodiment, the water in the gas-liquid mixing tank 12 is drained from the drain pipe 24, but this water is discharged from the supply pipe 16 into the bathtub 13. May be.

  Moreover, although the said Example demonstrated the case where a hydrogen water supply apparatus was combined with the bathtub, the use of this invention is not restricted to a bath system, The liquid which dissolved hydrogen gas, and hydrogen water are manufactured. The device can be used in general.

It is one Example of this invention, Comprising: It is a schematic sectional drawing which shows the hydrogen water supply apparatus for bathtubs. It is a functional block diagram for demonstrating the function of the controller of a hydrogen water supply apparatus same as the above. It is a flowchart explaining the process of supplying hydrogen water using the hydrogen water supply apparatus of this invention. It is a flowchart explaining the process of the hydrogen operation cancellation in the hydrogenous water supply apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Hydrogen water supply apparatus 12 Gas-liquid mixing tank 13 Bath 15 Suction pipe 16 Supply pipe 19 Circulation pump 20 Electric two-way valve 22 Liquid level detector 24 Drain pipe 25 First electric three-way valve 26 Electrolyzer 27 Hydrogen gas supply pipe 28 Second electric three-way valve 29 Exhaust pipe 30 Air vent 34 Liquid level detector 39 Controller 40 Remote control 42 Hydrogen operation switch 43 Hydrogen operation stop switch 44 Tank drain pipe 45 Tank drain solenoid valve

Claims (3)

  By supplying water into the gas-liquid mixing tank filled with hydrogen gas, the hydrogen gas in the gas-liquid mixing tank is dissolved in water, and then the water in which the hydrogen gas is dissolved is drained outside the gas-liquid mixing tank. A method for disposing of hydrogen water. A first water flow path for injecting water into a gas-liquid mixing tank filled with hydrogen gas; a second water flow path for supplying water in which hydrogen gas is dissolved in the gas-liquid mixing tank; In a hydrogen water supply apparatus provided with a pump for passing water through a gas-liquid mixing tank,
It is provided with a means for draining water, which is supplied into a gas-liquid mixing tank filled with hydrogen gas and dissolved in the gas-liquid mixing tank, from the drain pipe to the outside of the gas-liquid mixing tank. Hydrogen water supply device.   The hydrogen water supply apparatus according to claim 2, wherein the gas-liquid mixing tank is connected to the bathtub by a first water channel and a second water channel.

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