JP3465611B2 - Sterilizer and bath tub water circulation purifier equipped with sterilizer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizing device for sterilizing circulating water and a bath water circulation purifying device equipped with the sterilizing device.

[0002]

2. Description of the Related Art In recent years, there have been provided baths for home use that allow bathing for 24 hours. In this case, in order to make the bath water in the bath 10 usable for a long time, it is necessary to purify or sterilize the bath water constantly or periodically. To this end, as shown in FIG. 7, a circulation pump 2 that circulates the bath water in the circulation water passage 1 and a filtration tank 3 that filters the bath water are provided, and a bypass passage 4 is provided in the circulation water passage 1. 4 is provided with a salt dissolving tank 19 and an electrolytic cell 6 having a pair of electrodes 5 built in at the downstream side thereof, the downstream side of the bypass passage 4 is connected to the primary side of the filtration tank 3, and the upstream side of the electrolytic cell 6 is provided. A bath water circulation purification device having a valve 7 on the side has been proposed.

In the above-mentioned conventional example, in order to generate chlorine, salt water is first supplied to the electrolytic bath 6 from the salt dissolving bath 19, and at this time, the salt concentration is controlled by the electric power between the pair of electrodes 5 provided in the electrolytic bath 6. While measuring the conductivity, the circulation pump 2 is stopped, the valve 18 upstream of the salt dissolving tank 19 is opened, and then the circulation pump 2 is operated, or while the circulation pump 2 is operating,
By repeating opening and closing of the valve upstream of the salt dissolving tank 19,
Supply until a predetermined salt concentration is reached. When the electrolytic cell 6 reaches a predetermined salt concentration, a voltage is applied between the electrodes 5 of the electrolytic cell 6 to generate free chlorine. Next, the valve 7 on the upstream side of the electrolytic cell 6 is opened, and the chlorine water generated in the electrolytic cell 6 is supplied to the bath water for sterilization.

However, oxygen gas or hydrogen gas generated from the electrode surface during electrolysis flows into the salt-dissolving tank side pipe and replaces the saline solution remaining in the salt-dissolving tank side pipe, and the saline solution flows into the electrolytic cell. However, there is a problem that the salt solution concentration in the electrolytic cell increases, and the salt is excessively consumed.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and the object thereof is that the gas generated during electrolysis is supplied to the pipe on the salt dissolving tank side. Prevents the salt water from flowing into and replacing the saline solution remaining in the pipes on the side of the salt dissolution tank to suppress excessive consumption of salt, and to supply a certain amount of chlorine to the bath water and the equipment to cause pathogens such as Legionella spp. It is an object of the present invention to provide a sterilizing device capable of sterilizing sexual bacteria and the like and a bath water circulation purifying device including the sterilizing device.

[0006]

In order to solve the above problems, a sterilizing apparatus according to the present invention comprises a circulation pump 2 which sucks circulating water from a suction port 8 at one end and discharges it from a discharge port 9 at the other end. In the middle of the circulating water channel 1, the first branch channel 16 and the second channel
The first branch passage 16 is provided with an electrolytic bath 6, the second branch passage 17 is provided with a salt dissolving bath 19, and the downstream end of the second branch passage 17 is communicated with the electrolytic bath 6. The downstream side of the first branch passage 16 is connected to the circulating water passage 1 side, and the salt dissolving tank 19 is connected.
Is opened when the saline solution is supplied to the electrolytic bath 6 from the above, and closed when the chlorine water produced by electrolyzing the saline solution supplied from the salt dissolving tank 19 in the electrolytic bath 6 is discharged from the discharge port 9. A valve 18 is provided on the upstream side of the salt-dissolving tank 19 of the second branch passage 17, and the downstream end of the second branch passage 17 is connected to the electrolytic bath 6 around the communication port 25. In the above, a partition wall 26 is provided to prevent the gas generated by electrolysis from flowing into the salt dissolving tank 19 side. With such a configuration, the partition wall 26 prevents the oxygen gas or hydrogen gas generated in the electrolysis tank 6 from flowing into the pipe on the salt dissolution tank 19 side from the communication port 25, and the salt dissolution tank 19 is generated during electrolysis. This is to prevent excessive inflow of saline solution from the side pipe.

Further, the bath water circulation purifying apparatus equipped with the sterilizing apparatus of the present invention comprises a circulation pump 2 for circulating bath water in the circulating water channel 1, and a filter tank 3 for filtering the bath water, and the circulating water channel 1 is filtered. A bypass path 4 is provided on the upstream side of the tank 3, a midway of the bypass path 4 is branched into a first branch path 16 and a second branch path 17, and an electrolytic tank 6 is provided in the first branch path 16 and a second branch path is provided. A salt dissolving tank 19 is provided in the passage 17, the downstream end of the second branch passage 17 is connected to the electrolysis tank 6, and the downstream side of the first branch passage 16 is upstream of the filtration tank 3 of the circulating water passage 1. Connect to,
When the salt solution is supplied from the salt dissolving tank 19 to the electrolytic tank 6, the salt solution is opened and the salt solution supplied from the salt dissolving tank 19 is changed to the electrolytic tank 6.
When the chlorine water electrolyzed inside is discharged from the discharge port 9 through the filtration tank 3, a valve 18 that is closed is provided with a second branch passage 17
The gas generated by electrolysis in the electrolysis tank 6 is provided around the communication port 25, which is provided on the upstream side of the salt dissolution tank 19 and the downstream end of the second branch passage 17 communicates with the electrolysis tank 6. It is characterized in that a partition wall 26 for preventing the inflow to the 19 side is provided. With such a configuration, the bath water in the bathtub 10 is circulated in the circulating water channel 2, purified by the filtration tank 3 and returned to the bathtub 10, whereby the bath water can be purified and the bath water is replaced for a long period of time. Not only can it be used without any use, but in such a configuration that can be used without changing the bath water for a long period of time, salt solution is supplied from the salt dissolving tank 19 to the electrolytic bath 6, and electrolysis is performed in the electrolytic bath 6 to generate chlorine. By generating water and discharging the chlorine water from the discharge port 9 to the bath 10 through the filtration tank 3, the filtration tank 3, the piping, and the bath water in the bath can be sterilized with the chlorine water. The partition wall 26 prevents the oxygen gas or hydrogen gas generated in the electrolysis tank 6 during the electrolysis from flowing into the pipe on the salt dissolution tank 19 side from the communication port 25, and the electrolysis tank 6 from the pipe on the salt dissolution tank 19 side during electrolysis. It is intended to prevent excessive inflow of saline solution.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

FIG. 1 shows a piping configuration diagram of a sterilizer of the apparatus of the present invention. The circulating water channel 1 has a suction port 8 at one end and a discharge port 9 at the other end. The suction port 8 and the discharge port 9 are immersed in water to be sterilized. As the water to be sterilized, for example, bath water in the bath 10 can be considered, but it goes without saying that it can be used for sterilizing the liquid by immersing it in a liquid other than the bath water.

A circulating pump 2 is provided in the circulating water passage 1, and a portion of the circulating water passage 1 downstream of the circulating pump 2 is branched into a first branch passage 16 and a second branch passage 17. The first branch 16 is provided with a valve 7 and an electrolysis tank 6 in this order from the upstream side to the downstream side, and the second branch 17 is provided with a valve 18 and a salt dissolving tank 19 in order from the upstream side to the downstream side. . The downstream end of the second branch passage 17 is connected to the electrolytic cell 6 for communication. The flow path of the portion of the second branch passage 17 between the salt dissolving tank 19 and the electrolytic tank 6 connects the upper outlet 28a of the upper portion of the salt dissolving tank 19 and the communication port 25 provided at the upper end of the electrolytic tank 6. Flow passage 17a and lower outlet 28 of the salt dissolution tank 19
flow path 17b derived from b and joining the flow path 17a
It consists of and.

The salt dissolving tank 19 comprises an outer container 19a and a perforated salt container 19b. Further, the electrolytic cell 6 is formed as a non-diaphragm type in which the electrodes 5 composed of a pair of insoluble electrode plates are opposed to each other without a diaphragm. Here, the shape of the electrode plate forming the electrode 5 is a rectangle that reaches below the electrolytic bath 6. A DC voltage is applied to the electrode 5, and the voltage is applied to the electrode 5 under the control of the control unit 20. The salt solution chloride - but contains chlorine ions by applying a DC voltage to the electrode 5 in the electrolytic cell 6 ^(Cl) (Cl ^-) When electrolysis of a portion of the chloride ion (Cl ^-) Is chlorine (C
L ₂ ) or hypochlorite ion (ClO ⁻ ) is exchanged, and the bath water can be made to have a sterilizing power.

FIG. 2 shows a control block diagram of the sterilization apparatus. By operating the operation unit 30, the control unit 20 controls the operation of the circulation pump 2, the control of opening / closing of the valves 7 and 18, and the electrode 5. It is designed to control the application of voltage to the.

When supplying salt water from the salt dissolving tank 19 to the electrolytic bath 6, the valve 18 is opened and the circulation pump 2 is operated to supply the salt water in the salt dissolving tank 19 to the electrolytic bath 6. To do. In this case, the valve 7 is closed or open. When the salt concentration in the electrolytic cell 6 reaches a predetermined concentration, the valves 18 and 7 are closed and a voltage is applied to the electrode 5. Here, the salt solution contains chlorine ions (Cl ⁻ ), but the electrode 5
When electrolysis of a portion of the chlorine ions - in applying a DC voltage to chlorine ions ^(Cl) to be exchanged to chlorine water (Cl - ^-) chlorine (Cl ₂₎ and hypochlorite ions ^(ClO) As a result, this chlorine water will have sterilizing power. After the chlorine water is generated in the electrolytic cell 6 in this way, the valve 18
The circulation pump 2 is operated with the valve closed and the valve 7 opened so that chlorine water in the electrolytic cell 6 is discharged from the discharge port 9 of the circulation channel 1 to the bath 10.
Dispense into the tank containing the liquid to be sterilized,
The liquid in the tank is sterilized.

Here, hydrogen gas and oxygen gas are generated during electrolysis in the electrolysis tank 6 and are collected at the upper part in the electrolysis tank 6,
In this case, in the present invention, a partition wall 26 is provided around the communication port 25 to prevent the gas generated by the electrolysis from flowing into the salt dissolution tank 19 side from the communication port 25. The partition wall 26 extends vertically from the upper surface of the electrolytic cell 6 into the electrolytic cell 6 so as to surround the communication port 25 provided on the upper surface of the electrolytic cell 6, and the gas generated by electrolysis is generated in the electrolytic cell 6. Even if they collect at the upper part of the container, they are blocked by the partition wall 26 and do not flow into the salt dissolving tank 19 side from the communication port 25. Therefore,
Gas flows into the pipe on the side of the salt dissolving tank 19 so that the salt dissolving tank 1
The salt solution is replaced with the remaining salt solution in the pipe on the 9 side, and the replaced salt solution does not flow into the electrolytic cell 6 and the salt in the electrolytic cell 6 does not become excessive. The hydrogen gas and the oxygen gas generated during the electrolysis and collected in the upper part of the electrolytic bath 6 are discharged from the discharge port 9 at the same time when the chlorine water generated in the electrolytic bath 6 is discharged from the discharge port 9. Is.

Incidentally, FIG. 3 shows another embodiment of the sterilizing apparatus of the present invention. The sterilizer according to the present embodiment has the same basic structure as the sterilizer shown in FIG. 1, and the salt dissolving tank 19 is provided on the downstream side of the position where the flow passage 17a of the second branch passage 17 merges with the flow passage 17b. The configuration in which a check valve 11 having a direction in which water flows only in the electrolytic cell 6 is different from that in FIG. As in the present embodiment, the flow path 1 of the second branch path 17
If a check valve 11 having a direction in which water flows only from the salt dissolving tank 19 to the electrolytic cell 6 is provided on the downstream side of the position where the flow path 17b of 7a joins, the circulation pump 2 operates and chlorine water is discharged. While supplying water, the electrolysis tank 6 to the salt dissolving tank 19 is hydraulically operated.
The check valve 11 prevents the water from flowing backward to prevent the water level in the salt dissolving tank 19 from rising, and even if the circulation pump 2 is stopped, the salt solution whose water level has risen from the salt dissolving tank 19 Is prevented from flowing into the electrolytic cell 6 to suppress the consumption of excessive salt. Also in this embodiment, by providing the partition wall 26, the oxygen gas or hydrogen gas generated by electrolysis from the electrolysis tank 6 is provided in the pipe between the check valve 11 and the communication port 25 in the pipe on the salt dissolution tank 19 side. Is not allowed to flow into the electrolytic cell 6 side by replacing the saline solution remaining in the pipe.

Next, a bath water circulation purification device equipped with a sterilizing device will be described.

FIG. 4 shows an embodiment of a piping configuration diagram of a bath water circulation purification device equipped with a sterilizing device. The circulating water channel 1 has a suction port 8 at one end and a discharge port 9 at the other end.
Is provided, and the suction port 8 and the discharge port 9 are provided in the bathtub 1.
It is immersed in the bath water of 0.

The circulating water channel 1 is provided with a circulating pump 2, a heater 12 and a valve 13 in this order from the upstream side to the downstream side.
The circulating water channel 1 branches into two channels, a water channel 1a and a purified water channel 1b, on the downstream side of the circulation pump 2, and the water channel 1a and the purified water channel 1b join again on the upstream side of the heater 12. ing. In addition, the heater 12 is provided in the water passage 1a.
May be provided so that the purified water channel 1b joins the downstream side of the heater 12.

Purification water channel 1b forming a part of the circulation water channel 1.
Is provided with a filter tank 3, a valve 14 is provided on the purified water channel 1b upstream of the filter tank 3, and the purified water channel 1b is provided.
A valve 15 is provided on the downstream side of the filtration tank 3.

One end of the bypass passage 4 is connected upstream of the valve 14 of the purified water passage 1b or upstream of the heater 12 of the water passage 1a, and the other end of the bypass passage 4 is connected to the purified water passage 1b. It is connected between the valve 14 and the filtration tank 3. The first branch 16 and the second branch 17 are provided in the middle of the bypass 4.
The first branch passage 16 is provided with a valve 7 and an electrolytic cell 6 in that order from the upstream side to the downstream side. Further, the second branch passage 17 is provided with a valve 18 in order from the upstream side to the downstream side,
A salt dissolving bath 19 is provided, and the downstream end of the second branch passage 17 is connected to the electrolytic bath 6. The flow path of the portion of the second branch 17 between the salt dissolving tank 19 and the electrolytic tank 6 is a flow path 17a led out from the upper outlet 28a of the salt dissolving tank 19 and the lower outlet of the salt dissolving tank 19. And a flow path 17b which is led out from 28b and merges with the flow path 17a. The flow path 17b of the flow path 17a in the portion between the salt dissolving tank 19 of the second branch path 17 and the electrolytic cell 6 is formed. A check valve 11 having a direction in which water flows only from the salt dissolving tank 19 to the electrolytic tank 6 is provided on the downstream side of the confluence position with.

The salt dissolving tank 19 comprises an outer container 19a and a perforated salt container 19b. Further, the electrolytic cell 6 is formed as a non-diaphragm type in which the electrodes 5 composed of a pair of insoluble electrode plates are opposed to each other without a diaphragm. Here, the shape of the electrode plate forming the electrode 5 is a rectangle that reaches below the electrolytic bath 6. A DC voltage is applied to the electrode 5, and the voltage is applied to the electrode 5 under the control of the control unit 20. The salt solution chloride - but contains chlorine ions by applying a DC voltage to the electrode 5 in the electrolytic cell 6 ^(Cl) (Cl ^-) When electrolysis of a portion of the chloride ion (Cl ^-) Is chlorine (C
L ₂ ) or hypochlorite ion (ClO ⁻ ) is exchanged, and the bath water can be made to have a sterilizing power.

Inside the filtration tank 3, there is provided a filter medium 3a made of a fine filter medium such as a hollow fiber membrane. A spout 21 of bath water supplied from the purified water channel 1b is provided in the filtration tank 3, and spouted water is spouted from the spout 21 toward the upstream surface of the filter medium 3a.

The bath water circulation purifying apparatus equipped with the sterilizing apparatus having the above-described structure is in the "normal circulation" mode, "saline supply".
It is possible to operate by switching between various modes such as a mode, an "electrolysis" mode, and a "chlorine water supply" mode. Switching of each valve by switching these modes,
The circulation pump 2 is operated under the control of the control unit 20. Further, the voltage is applied to the electrode 5 during electrolysis under the control of the control unit 20.

In the bath water circulation purifying apparatus of the present invention, during normal circulation operation, the valve 13, valve 14 and valve 15 are all opened and valve 18 and valve 7 are all closed to operate the circulation pump 2. In this case, when a part of the bath water sucked into the circulating water channel 1 from the suction port 8 by the operation of the circulation pump 2 passes through the filter tank 3,
It is filtered and purified by a, heated by the heater 12, and returned to the bath 10 from the discharge port 9 (this is the "normal circulation mode"). Here, since the circulation water channel 1 is branched into two channels, the water passage channel 1a and the purification channel channel 1b, on the downstream side of the circulation pump 2, the filter medium 3a in the filtration tank 3 provided in the purification channel channel 1b is Even if the amount of water flowing through the purified water channel 1b decreases due to clogging, in this case, the amount of water flowing through the water channel 1a increases, so that the amount of bath water flowing through the entire circulating water channel 1 does not change, and the heating by the heater 12 does not occur. The returned bath water prevents the temperature of the bath water in the bath 10 from decreasing.

In the sterilization (or sterilization) operation, the operation is performed in the order of "saline solution supply" mode → "electrolysis" mode → "chlorine water supply" mode. That is, by operating the circulation pump 2 with all the valves 13, 14, 15, and 18 open and the valve 7 closed, the salt solution is supplied from the salt dissolving tank 19 to the electrolytic cell 6. (This is “saline supply”)
Mode). After supplying the salt solution to the electrolytic cell 6 in this manner, all of the valves 13, 14, and 15 are opened, and the valve 1
8, chlorine is generated by applying a voltage to the electrode 5 and electrolyzing it with both valves 7 closed (this is the "electrolysis" mode). In this case, the circulation pump 2 is operated. Next, when the valve 13, the valve 14, the valve 15, and the valve 7 are all opened and the valve 18 is closed, and the circulation pump 2 is operated in this state, the chlorine water in the electrolytic cell 6 is supplied to the filtration tank 3, It passes through 3a and flows into the bath 10 with the bath water (this is the "chlorine water supply" mode). By thus flowing the chlorine water into the circulating water channel 1, pathogenic bacteria in the bath water and the apparatus are suppressed, and slime that causes discomfort is removed. In addition, when supplying the saline solution, the valve 13, the valve 14,
The salt concentration in the electrolytic cell 6 may be kept constant while operating the circulation pump 2 with the valves 15 all open and the valve 7 closed and repeatedly controlling the opening and closing of the valve 18.

As described above, normally, the circulation operation and the sterilization operation are performed, but during the electrolysis operation, hydrogen gas and oxygen gas are generated and collected at the upper part in the electrolytic cell 6. In this case, in the present invention, a partition wall 26 is provided around the communication port 25 to prevent the gas generated by the electrolysis from flowing into the salt dissolution tank 19 side from the communication port 25. The partition wall 26 surrounds the communication port 25 provided on the upper surface of the electrolytic cell 6 so as to surround the electrolytic cell 6.
Even if the gas generated by electrolysis gathers in the upper part of the electrolysis tank 6, it is blocked by the partition wall 26 and does not flow into the salt dissolution tank 19 side from the communication port 25 even if the gas generated by electrolysis gathers in the upper part of the electrolysis tank 6. It is like this. Therefore, gas flows into the pipe on the side of the salt dissolving tank 19 and replaces the saline solution remaining in the pipe on the side of the salt dissolving tank 19, and the replaced saline solution flows into the electrolytic tank 6 to remove the salt in the electrolytic tank 6. It doesn't become excessive. Oxygen gas or hydrogen gas generated during electrolysis and collected in the upper portion of the electrolytic cell 6 is supplied from the discharge port 9 to the bathtub of the bath 1 along with chlorine water in the “chlorine water supply” mode in which the chlorine water generated in the electrolytic cell 6 is supplied. Discharge into water.

FIG. 5 shows another embodiment of the bath water circulation purifying apparatus equipped with the sterilizing apparatus of the present invention. In the present embodiment, the bath water circulation purification device provided with the sterilizer has the same basic structure as that shown in FIG. 4, and is located at a position where the passage 17a of the second branch passage 17 and the passage 17b join together. The configuration in which a check valve 11 having a direction in which water flows only from the salt dissolving tank 19 to the electrolytic cell 6 on the downstream side is different from that of FIG. As in the present embodiment, the flow path 17a of the second branch path 17
The salt dissolving tank 1 on the downstream side of the position where the flow path 17b merges.
If a check valve 11 having a direction in which water flows only from 9 to the electrolytic bath 6 is provided, water will flow backward from the electrolytic bath 6 to the salt dissolving bath 19 due to water pressure when the circulation pump 2 is operating. Even if the water level in the salt dissolving tank 19 rises, it is blocked by the check valve 11. As a result, the water level in the salt dissolving tank 19 rises above the predetermined water level, and the salt water in the salt rising tank is electrolyzed from the salt dissolving tank 19 by releasing the pressure by stopping the operation of the circulation pump 2. It is possible to prevent such a phenomenon that salt water flows into the tank 6. That is, when the circulation pump 2 is turned on / off or the flow path is changed, the salt dissolving tank 19 to the electrolytic tank 6 are caused by breathing.
Saline does not flow into. Therefore, it becomes possible to prevent the control of the salt concentration during the electrolysis and the quick consumption of the salt in the salt dissolving tank 19 to be prevented.

FIG. 6 (a) shows the water level in the salt dissolving tank 19 when the circulation pump 2 is stopped, and FIG. 6 (b) shows the salt dissolving tank 19 when the circulation pump 2 is operating.
6 (c) shows the water level in the salt dissolving tank 19 when the operation of the circulation pump 2 is turned off after the operation of the circulation pump 2, and FIGS. 6 (a) and 6 (b) ( c)
In any case, the water level W1 in the salt dissolving tank 19 is the same.

Also in this embodiment, by providing the partition wall 26, the oxygen gas generated by electrolysis from the electrolyzer 6 is provided in the pipe between the check valve 11 and the communication port 25 among the pipes on the salt dissolving tank 19 side. The hydrogen gas does not flow into the electrolytic cell 6 side by replacing the saline solution remaining in the pipe with the saline solution.

[0030]

According to the present invention as set forth in claim 1, the first branch is provided in the middle of the circulating water passage provided with the circulating pump for sucking the circulating water from the suction port at one end and discharging the circulating water from the discharge port at the other end. Branching into a path and a second branch path, an electrolytic cell is provided in the first branch path, a salt dissolving tank is provided in the second branch path, and the downstream end of the second branch path is connected to the electrolytic cell. The downstream side of the first branch passage is connected to the circulating water passage side, and opens when the salt solution is supplied from the salt dissolving tank to the electrolytic tank, and the salt solution supplied from the salt dissolving tank is electrolyzed in the electrolytic tank to generate the salt solution. A valve that closes when the discharged chlorine water is discharged from the discharge port is provided upstream of the salt dissolving tank in the second branch passage, and the downstream end of the second branch passage communicates with the electrolytic cell. A partition wall is provided around the mouth to prevent the gas generated by electrolysis in the electrolytic cell from flowing into the salt dissolving tank side. The partition walls prevent oxygen gas and hydrogen gas generated in the electrolysis tank from flowing into the salt dissolution tank side pipe during electrolysis, and excessive salt water flows in from the salt dissolution tank side pipe during electrolysis. It is possible to prevent this, to suppress excessive consumption of salt and to stably generate and supply chlorinated water to sterilize pathogenic bacteria such as Legionella spp.

Further, a circulation pump for circulating the bath water in the circulation water channel and a filtration tank for filtering the flow of the bath water are provided, and a bypass channel is provided upstream of the filtration tank in the circulation water channel. The first branch path and the second branch path are branched, the first branch path is provided with an electrolytic cell, the second branch path is provided with a salt dissolving tank, and the downstream end of the second branch path is communicated with the electrolytic cell. connection,
The downstream side of the first branch passage is connected to the upstream side of the filtration tank of the circulation water passage so as to be opened when the salt solution is supplied from the salt dissolving tank to the electrolytic tank and the salt solution supplied from the salt dissolving tank is electrolyzed. A valve that closes when chlorine water generated by electrolysis in the tank is discharged from the discharge port through the filter tank is provided upstream of the salt dissolving tank in the second branch passage. By circulating the water in the circulation channel, purifying it with the filter tank and returning it to the bathtub, the water in the bathtub can be purified and can be used for a long period of time without changing the bathwater, and without changing the bathwater for a long time. In the one that can be used, salt water is supplied from the salt dissolving tank to the electrolytic tank, electrolysis is performed in the electrolytic tank to generate chlorine water, and this chlorine water is discharged from the discharge port to the bath through the filtration tank. Kill the bath water in the filter tank, piping, and bathtub with chlorine water. In order to prevent the gas generated by electrolysis in the electrolytic cell from flowing into the salt dissolving tank side around the communication port where the downstream end of the second branch passage communicates with the electrolytic cell. Since the partition of
Oxygen gas or hydrogen gas generated in the electrolysis tank during electrolysis is prevented from flowing into the salt dissolution tank side pipe from the communication port, and excessive salt water flows in from the salt dissolution tank side pipe during electrolysis. It is possible to prevent the occurrence of salt, suppress excessive consumption of salt and stably generate and supply chlorine water, sterilize bath water, filter tank and circulating water channel, and cause pathogenicity of Legionella spp. It is capable of sterilizing bacteria and the like.

[Brief description of drawings]

FIG. 1 is a piping configuration diagram of a sterilizer of the present invention.

FIG. 2 is a control block diagram of the above.

FIG. 3 is a piping configuration diagram of another embodiment of the sterilization device of the above.

FIG. 4 is a piping configuration diagram of a bath water circulation purifying apparatus equipped with the sterilizing apparatus of the present invention.

[Fig. 5] Fig. 5 is a piping configuration diagram of another embodiment of a bath water circulation purifying apparatus including the above sterilizing apparatus.

FIG. 6A is an explanatory diagram showing the water level in the salt dissolution tank when the circulation pump is stopped, and FIG. 6B shows the water level in the salt dissolution tank when the circulation pump is operating. It is an explanatory view shown, and (c) is an explanatory view showing a water level in a salt dissolution tank when operation of a circulation pump is turned off after operation of a circulation pump.

FIG. 7 is a piping configuration diagram of a conventional example.

[Explanation of symbols]

1 circulation waterway 2 circulation pump 3 filtration tanks 4 Bypass 5 electrodes 6 electrolysis tank 7 valves 10 bathtubs 16 First branch road 17 Second branch road 18 valves 19 Salt dissolver 25 communication port 26 partitions

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsutomu Amagi 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor, Koichi Inoue, 207, Kiyosu-cho, Nishikasugai-gun, Aichi Pref. In Nagoya Matsushita Electric Works, Ltd. (56) Reference JP 10-263544 (JP, A) JP 9-327407 (JP, A) JP 6-154755 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) C02F 1/46 C02F 1/50 A47K 3/00 B01D 35/027

Claims (2)

(57) [Claims] 1. A first branch path is divided into a first branch path and a second branch path in the middle of a circulating water channel provided with a circulation pump that sucks circulating water from one suction port and discharges it from the other end discharge port. An electrolytic bath is provided in the passage, a salt dissolving bath is provided in the second branch passage, the downstream end of the second branch passage is connected to the electrolytic bath, and the downstream side of the first branch passage is connected to the circulating water passage side. , It opens when the salt solution is supplied from the salt dissolving tank to the electrolytic cell, and it is closed when the chlorine water generated by electrolyzing the salt solution supplied from the salt dissolving tank in the electrolytic cell is discharged from the discharge port. A valve that becomes the upstream side of the salt-dissolving tank of the second branch passage is provided, and a gas generated by electrolysis in the electrolysis tank is provided around the communication port where the downstream end of the second branch passage communicates with the electrolysis tank. A sterilizing device comprising a partition wall for preventing the salt from flowing into the salt dissolving tank side. 2. A circulation pump that circulates bath water in a circulating water channel and a filtration tank that filters the bath water, a bypass channel is provided upstream of the filtration tank in the circulating channel, and the first part of the bypass channel is located in the middle. It is branched into a branch path and a second branch path, an electrolytic cell is provided in the first branch path, a salt dissolving tank is provided in the second branch path, and the downstream end of the second branch path is connected to the electrolytic cell. , Connecting the downstream side of the first branch passage to the upstream side of the filtration tank of the circulating water passage,
When the salt solution is opened from the salt dissolving tank to the electrolytic tank and the chlorine water generated by electrolyzing the salt solution supplied from the salt dissolving tank in the electrolytic tank is discharged from the discharge port through the filter tank. A valve to be closed is provided upstream of the salt dissolving tank in the second branch passage, and the downstream end of the second branch passage is generated by electrolysis in the electrolytic cell around the communication port communicating with the electrolytic cell. A bath water circulation purifying apparatus equipped with a sterilizer, characterized in that a partition wall is provided to prevent the gas that flows into the salt dissolving tank side from flowing in.