JPH09327407A - Circulation warming bath - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the filter efficiency of organic substances dissolved in bathtub water, to sterilize the inside of the filter device, and to make maintenance easier, by circulating electrolyzed bathtub water into the bathtub and/or the filter device. SOLUTION: Bath water in a sub-circulation passage (arrow A) branched from main circulation passage (arrow B) with a solenoid valve 8 opened by a timer is guided into an electrolytic device 6. Acidic electrolysis is firstly carried out in a pouring tank and alkaline electrolysis secondly in a retaining tank 15. As the result, weak acidic bathtub water is circulated from the pouring tank 14 into a bathtub 1 and strong alkaline bathtub water is accumulated in the retaining tank 15. Cleaning and draining are carried out after sterilizing the inside of the tank 5 and a filter in the tank 5 by pouring strong alkaline bathtub water in the retaining tank 15 and decomposing a part of attached organic substances. Same as this, the inside of the pouring tank 14 is alkali- electrolyzed and the inside of the retaining tank 15 acid-electrolyzed and gas attached to a diaphragm is removed. This sequence is repeated after that.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating hot water bath equipped with a filtering device for circulating and reusing bath water in a bath.

[0002]

2. Description of the Related Art Conventionally, bath water is circulated through a filtration tank, an activation tank, etc. using a circulation pump to remove dirt and activate hot water even in a domestic bath. In recent years, as a further improved function, the so-called "24" that not only simply removes and activates the dirt in the hot water but also controls the temperature using a heater for warming so that the user can take a bath 24 hours a day An hour bath is being developed.

Further, in addition to removing dirt from the bath water, the one equipped with an ultraviolet sterilizer for sterilization is also provided for the purpose of preventing the generation of foul odor and Escherichia coli, and a small ozone generator is provided. Models that perform ozone treatment have also been developed.

[0004] In addition, it is developed from a direction different from the sterilization of bath water so that the bathtub has a massage effect.
A technology has been developed in which air is drawn into the bathtub and air is jetted out into the bathtub to generate bubbles, and such a function has also been added to the circulating warm bath.

FIG. 4 is a schematic view showing a conventional circulating hot water bath having such functions. In FIG. 4, when the circulating pump 4 is driven, the bath water in the bath 1 is sucked up from the suction port 2 and the circulation path is formed. Through the circulation pump 4. The bath water sent from the circulation pump 4 is first filtered by the filtration tank 5. The filtered bath water is sent to the activation tank 19 and activated by the barley stone etc. packed therein. The bath water from which the dirt has been removed is sterilized by the sterilizer 20 using ultraviolet rays, ozone, or the like. The bath water purified in this way is returned to the bath 1 through the outlet 3 with its temperature controlled by the heater 7 for heat retention. At this time, air may be mixed to produce a jet jet.

[0006]

In the conventional circulating hot water bath, the filtration tank 5 removes dirt, oil and the like mixed in the bath water to purify the bath water, and further the cooked rice in the activation tank 19. It has the effect of mineralizing water quality with stones. However, since it is used continuously for 24 hours, clogging of filter media such as filter beds and barley stones and sticking of filter media and filter media due to generation of microorganisms become a problem.

As a countermeasure against this, it is necessary to make the filter bed into a cartridge type and periodically replace it, or to wash the filter bed by the user himself. There is also an automatic backwashing method in which a water flow is passed from the lower part of the filtration tank and drainage is performed from the upper part of the filtration tank. However, when the filter bed is strongly stuck, the effect of washing is gradually reduced, and the water passing life of the filter is short.

One of the merits of the circulating hot water bath is that it is not necessary to clean the bath in addition to taking a bath 24 hours a day. However, the circulating hot water bath itself needs to have a maintenance interval as long as possible. It is desired to extend the life of the filter.

It is an object of the present invention to make maintenance easier in such a circulating hot water bath.

[0010]

DISCLOSURE OF THE INVENTION The present invention relates to a circulating hot water bath equipped with a filtering device for circulating and reusing the bath water in the bathtub, wherein the electrolyzed bath water is filtered in the bath and in the bath. It is characterized in that it is circulated to either or both of the devices.

According to the present invention, the filtration efficiency of the organic matter dissolved in the bath water can be improved by utilizing the agglomeration effect of the organic matter due to the change in pH value, and the strongly alkaline electrolysis bath water produced by electrolysis or The inside of the filtration device is sterilized by the strongly acidic bath water, and maintenance can be performed more easily.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to Claims 1 and 2 of the present invention is a circulating hot water bath equipped with a filtering device for circulating and reusing the bath water in the bathtub, wherein the bath is electrolyzed. Water is circulated in either or both of the bath and the filtration device, thereby improving the filtration efficiency of the organic matter dissolved in the bath water by utilizing the aggregation effect of the organic matter due to the pH value change. In addition, the inside of the filtration device is sterilized by the strongly alkaline electrolytic bath water or the strongly acidic bath water produced by electrolysis.

According to a fourth aspect of the present invention, the inside of the electrolysis device is constituted by a water discharge tank and a retention tank each having an electrode and partitioned by a diaphragm, and the water discharge tank is provided in a flow path for circulating the water in the bath. And the retention tank is connected to the filtration device.

As a result, in the retention tank separated by the diaphragm, strong alkaline electrolytic bath water is generated when acidic electrolysis is performed on the discharge tank side, and strong acidic bath water is generated when alkaline electrolysis is performed on the discharge tank side. Is generated. Bacteria in the filtration device can be regularly sterilized by periodically passing the accumulated water through the filtration device. As a result, it is possible to prevent the generation of harmful microorganisms in the filter or the filter medium installed in the filter device, to prevent clogging of the filter medium due to the growth of bacteria in the filter medium, and to extend the filtration life. Further, even when the filter medium is washed by backwashing, the filter medium is not fixed due to the propagation of microorganisms in the filter medium, so that it can be efficiently performed with a small amount of bath water.

According to a fifth aspect of the present invention, the polarities of the electrodes in the electrolysis device can be changed.
Alkaline electrolytic bath water or strongly acidic bath water can be arbitrarily obtained in the retention tank and the water discharge tank, respectively.

The invention according to claim 6 is provided with a gas discharge mechanism for discharging the gas generated in the electrolysis apparatus, whereby the amount of water to be passed is influenced by the change in the amount of water passed due to the generation of gas. Stable water volume and p
Water can be passed through the bath at the H value.

According to a seventh aspect of the present invention, when the operation of the apparatus is started or when the polarities of the electrodes are switched, the air bubbles adhering to the diaphragm in the electrolysis apparatus are discharged so that further maintenance is performed. Will be easier.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a schematic configuration diagram of a circulating hot bath for bath according to an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of the electrolytic cell shown in FIG. 1, and FIG. 3 is a block diagram showing control during electrolysis generation.

As shown in FIG. 1, the bathtub 1 is filled with bathtub water. Inside the device, a circulation pump 4, a filtration tank 5 (membrane filter: opening diameter 5 micron, 10 inch module), a heater for heat insulation 7 (power consumption: 800
W) and an electrolysis device 6 are provided respectively. Bathtub 1
The bath water in the bath is introduced from a suction port 2 installed in the bath 1 to a main circulation path indicated by an arrow A by a circulation pump 4, and passes through a branching port to a filtration tank 5 and an electrolyzer 6, and then a heat retaining heater 7 Through the discharge port 3 to return to the inside of the bathtub 1, whereby the circulation purification of the bath water is repeated. In addition, the bath water branched from the branch port in the main circulation path is guided to the electrolysis device 6 through the sub circulation path indicated by the arrow B.

As shown in FIG. 2, in the electrolysis device 6, two platinum-plated titanium electrodes 12 and 13 (electrode area: 25-, plating thickness: 0.5) capable of switching between an anode and a cathode after a predetermined time. ~ 2 microns) is installed, the diaphragm 16 (RF-250) is installed between them, and the discharge tank 14 (volume 2 liters) and the retention tank 15 (volume 2.5 liters) 2
Has been split. Here, the volume of the retention tank 15 is set with reference to the volume of the filtration tank 5, but since the water level increases due to iontophoresis in proportion to the current value, the retention tank 15
It is necessary to make the volume of the above larger than that of the water discharge tank 14. Water is passed through the sub-circulation path to the water discharge tank 14 side, electrolyzed in the electrolysis device 6, the pH value is changed, and the water is circulated to the bath 1 through the discharge port 3.

When performing acidic electrolysis in the water discharge tank 14 in the electrolysis device 6, anions in the bath water pass through the diaphragm 16 by iontophoresis to move to the anode electrode 13 of the retention tank 15, and cations are discharged. It moves to the cathode electrode 12 of the water tank 14. At the same time, on the surfaces of the electrodes 12 and 13, the cathode electrode 1
Hydrogen gas is generated on 2 and oxygen gas and a part of chlorine gas are generated on the anode electrode 13. As a result, the water in the water discharge tank 14 is repeatedly circulated as acidic bath water, and the water in the retention tank 15 becomes strong alkaline bath water.

When performing alkaline electrolysis in the water discharge tank 14, cations in the bath water move to the retention tank 15 and anions move to the water discharge tank 14 by ion migration, so that the strong acid bath water is stored in the retention tank 15. The water discharge tank 14 generates and circulates alkaline bath water.

The respective gases generated at this time rise in the respective tanks 14 and 15 to be separated and discharged from the upper portion of the tanks. A gas decomposing device 17 (honeycomb activated carbon 5 × 5 × 10 cm) for decomposing a gas is attached to the gas outlet. Here, a part of the gas generated in the water discharge tank 14 is circulated by the water discharge at the same time as the bath water. The gas is separated from the bath water by opening the exhaust electromagnetic valve 11 installed at the outlet of the water discharge tank 14 in order to separate the gas mixed with the bath water, and the gas is separated from the bath water through the electromagnetic valve 11 and the gas decomposing device 17. ,
Emitted into the atmosphere.

Separately from this, when the solenoid valve 11 is closed at the time of switching the polarities of the electrodes or at the start of the operation after the device is stopped, the inside of the water discharge tank 14 becomes a closed section, and the pressure in the water discharge tank 14 becomes It lowers and the water level lowers. This makes it possible to discharge the gas attached to the diaphragm 16 as the gas is generated by electrolysis, and the dust and the like attached to the diaphragm 16 by electrophoresis. Further, even when air is mixed into the electrolysis device 6 due to the stop of the device or the like, the air can be discharged by performing the same operation.

Further, the retention tank 15 is connected to the filtration tank 5 via a solenoid valve 9 by a water passage installed in the lower portion of the retention tank 15, and a strong alkaline bath generated in the retention tank 15 at regular intervals. Water or strongly acidic bath water is passed through the filtration tank 5 to sterilize the inside of the tank.

Next, referring to FIGS. 1 and 2, the operation of the circulating hot water bath having the above construction will be described. The bath water sucked from the suction port 2 by driving the circulation pump 4 is supplied to the filtration tank 5 through the circulation pump 4. At this time, part of the bath water is branched from the branch port and circulated to the auxiliary circulation path indicated by arrow B. The bath water in the main circulation path is filtered and purified by a filter installed in the filtration tank 5, and then heated and kept warm by a heat-retaining heater 7 provided therein and circulated to the bath 1.

Here, at a preset time, a series of operations are performed according to the flowchart shown in FIG. The solenoid valve 8 is opened by the timer, and the bath water from the main circulation path to the auxiliary circulation path is guided to the electrolysis device 6. Tank 1 of electrolysis device 6
After the bath water is filled in the chambers 4 and 15, the electromagnetic valve 11 is closed several times for the gas discharging operation.

After that, the electrodes 12 and 13 are energized to start electrolysis (electrolysis conditions: voltage 30 V, current 1 to 3).
A). First, acidic electrolysis is performed in the water discharge tank 14, and the retention tank 1
Alkaline electrolysis is performed in 5. As a result, weakly acidic bath water circulates in the bath 1 from the water discharge tank 14, and strong alkaline bath water accumulates in the retention tank 15 (circulation time 3 hours).
Then, the circulation pump 4 is stopped, and the drainage solenoid valve 10 is opened to drain the water in the filtration tank 5 to drain the water in the filtration tank 5.

After that, the solenoid valve 9 attached to the lower part of the retention tank 15 is opened so that the strongly alkaline bath water in the retention tank 15 is poured into the filtration tank 5. At this time, the strong alkaline bath water sterilizes the filter in the filtration tank 5 and the filter in the filtration tank 5, and at the same time, the attached organic substances are partially decomposed. As a result, it is possible to prevent the generation of microorganisms that propagate in the organic matter originally filtered on the filter, and at the same time, to easily achieve separation of the organic matter by washing.

After this, the solenoid valve 10 is opened, the flow path switching valve 18 is switched, and the inside of the filtration tank 5 is washed with bath water and drained (5 liters). At this time, the decomposed organic matter is discharged together with the organic matter left on the filter by filtration.

Similarly, after this, in order to carry out the electrolysis in which the discharge tank 14 is alkaline electrolyzed and the retention tank 15 is acidic electrolyzed, water is supplied to the electrolytic tank. Similarly after this,
In order to remove the gas generated by electrolysis attached to the diaphragm 16 installed between the water discharge tank 14 and the retention tank 15, a gas discharging operation is performed. Similarly, acidic electrolysis is started in the water discharge tank 14 (circulation time 2 hours), tank drainage, accumulated water supply (holding time 1 hour), and backwash cleaning operation (drainage 5 liters) are performed.

By repeating this series of operations, the effect of preventing clogging of the filter can be obtained, and at the same time, the filtration life of the filtration filter can be extended.

[0033]

According to the first and second aspects of the present invention, the filtration efficiency of the organic matter dissolved in the bath water can be improved by utilizing the aggregation effect of the organic matter due to the change in pH value, and is produced by electrolysis. The inside of the filtering device is sterilized by the strongly alkaline electrolytic bath water or the strongly acidic bath water, which facilitates maintenance.

According to the fourth aspect of the present invention, in the retention tank separated by the diaphragm, when acidic electrolysis is performed on the water discharge tank side, strong alkaline electrolytic bath water is generated, and alkaline electrolysis is performed on the water discharge tank side. When performed, strongly acidic bath water is produced. Bacteria in the filtration device can be regularly sterilized by periodically passing the accumulated water through the filtration device. As a result, it is possible to prevent the generation of harmful microorganisms in the filter or the filter medium installed in the filter device, to prevent clogging of the filter medium due to the growth of bacteria in the filter medium, and to extend the filtration life. In addition, when the filter medium is washed by backwashing, the filter medium is not fixed due to the growth of microorganisms in the filter medium, so that it can be efficiently performed with a small amount of bath water.

According to the fifth aspect of the invention, alkaline electrolysis bath water or strongly acidic bath water can be arbitrarily obtained in the retention tank and the water discharge tank, respectively.

According to the sixth aspect of the present invention, it is possible to carry out the water flow to the bathtub with a stable water amount and pH value without the water flow amount being influenced by the change in the water flow amount due to the generation of gas.

The invention according to claim 7 further facilitates maintenance.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a bath circulating warm bath according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of the electrolytic cell shown in FIG.

FIG. 3 is a block diagram showing control during electrolysis generation.

FIG. 4 is a schematic view showing a conventional circulating warm bath.

[Explanation of symbols]

 1 Bathtub 2 Suction port 3 Discharge port 4 Circulation pump 5 Filtration tank 6 Electrolysis device 7 Heat-retaining heater 8 Electromagnetic valve (for electrolytic tank water supply) 9 Electromagnetic valve (for accumulated water supply) 10 Electromagnetic valve (for drainage) 11 Electromagnetic valve ( Exhaust) 12 Electrode (water discharge side) 13 Electrode (retention side) 14 Water discharge tank 15 Retention tank 16 Diaphragm 17 Gas decomposition device 18 Flow path switching valve 19 Activation tank 20 Sterilizer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takanori Kitagawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Shinji Suematsu 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Seiei Iura 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (7)

[Claims] 1. A circulating hot water bath equipped with a filtration device for circulating and reusing the bath water in the bathtub, wherein the electrolyzed bathwater is circulated in either or both of the bath device and the filtration device. A circulating warm bath characterized by being adapted to. 2. A circulating hot water bath equipped with a filtering device for circulating and reusing the bath water in the bathtub, wherein an electrolytic device for electrolyzing the bath water is provided in a circulation passage of the bath water, and an electric device. A circulating hot water bath, comprising: a flow path for circulating decomposed bath water in the bath. 3. The circulating hot water bath according to claim 2, further comprising a heater for heating the circulating water. 4. The inside of the electrolyzer is composed of a water discharge tank and a retention tank, each of which has an electrode and is partitioned by a diaphragm, and the water discharge tank is connected to a flow path circulating in the bath, and the retention tank is The circulating hot water bath according to claim 2, wherein the circulating hot bath is connected to the filtration device. 5. The circulating hot water bath according to claim 2, wherein the electrodes in the electrolysis device are capable of converting polarities. 6. A gas discharge mechanism for discharging gas generated in the electrolyzer, wherein the gas discharge mechanism is provided.
Circulating warm bath described in 4, 5. 7. The device according to claim 4, wherein the device is operated so as to discharge bubbles adhering to the diaphragm in the electrolyzer at the time of starting the operation of the device or switching the electrolysis polarity.
The circulating warm bath described in 6.