JP3210911B2 - Bathtub water purification equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub water purifying apparatus that circulates and purifies bathtub water in a bathtub, thereby enabling long-term use of bathtub water.

[0002]

2. Description of the Related Art Conventionally, in a bathtub water purifying apparatus in which bathtub water in a bathtub is sucked and circulated by a pump, purified in a filter tank and returned to the bathtub again, upstream of the filter apparatus of the bathtub water purifier. A chlorine generator is provided on the side, chlorine is generated by the chlorine generator at regular intervals, and the chlorine is passed through the filter tank to the bathtub, and the filter tank is sterilized and the bathtub water is sterilized. In a bath tub water purification device that is circulated for use without changing bath tub water for a long period of time, it is possible to suppress the growth of harmful bacteria such as Legionella bacteria.

However, if there is water in the salt dissolving tank of the chlorine generator at the time of replenishing the salt, there is a problem that when the salt is replenished, the water overflows to pollute the surroundings.

Therefore, it is conceivable to drain the water from the salt dissolving tank before replenishing the salt. Immediately after replenishing salt while draining water at the time of replenishing salt, or immediately after turning on the power switch of the bathtub water purifier, there is no water in the salt dissolving tank. Water is supplied to the salt dissolving tank only after the mode operation is started. During the first sterilization mode operation, the salt is not sufficiently dissolved, and the salt solution is supplied from the salt dissolving tank. There is a problem that it takes time for the concentration of salt in the tank to reach a constant value.

In the present invention, water is supplied to the salt dissolving tank immediately after turning on the power switch of the bath tub water purifying apparatus or immediately after replenishing the salt into the salt dissolving tank provided in the chlorine generator. Is characterized in claim 1 of the present invention in consideration of dissolving. By draining the water from the salt dissolving tank before replenishing the salt, this prevents the water from overflowing and contaminating the surroundings when replenishing the salt. In a short time, the concentration of the salt can be made constant.

However, in this case, simply operating the pump immediately after replenishing the salt in the salt dissolving tank provided in the chlorine generator and controlling the operation time of this pump to supply water to the salt dissolving tank is difficult. When it is not possible to control to supply water only in the salt dissolving tank, a large amount of salt solution flows into the electrolytic tank from the salt dissolving tank, and the consumption of salt increases. When the power is turned on again), when the saline solution flows from the salt dissolving tank into the electrolytic cell, when the electrolytic tank becomes a high-concentration saline solution and a current flows through the electrodes of the electrolytic tank, an overcurrent flows and the electronic components A new problem arises:

Further, when the power switch is turned on and the electrode is energized at the beginning of the first purification operation to perform aging treatment, the chlorine is generated stably when the chlorine is generated by electrolysis. If the polarity is reversed when performing the aging process, an inrush current flows, and the inrush current is detected, so that a malfunction is likely to occur.

Further, conventionally, there has been a problem that when supplying the saline solution to the electrolytic cell, an operation sound different from that in the normal circulation mode operation may be given to give the user an uneasy feeling.

Further, conventionally, when the operation is stopped during the electrolysis, electrolyzed water during the electrolysis is accumulated in the electrolytic cell, and when the operation is resumed, the salt dissolving tank is moved from the salt dissolving tank to the electrolytic cell. However, there is a problem that the saline solution is re-introduced into the saline solution or the electrolyzed water in the above, and becomes a high concentration saline or electrolyzed water.

Furthermore, when chlorine water flows into a bathtub through a filtration tank, the free chlorine concentration temporarily increases in the bathtub water. There has been no means to inform

[0011]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and water is removed from a salt dissolving tank before the salt replenishment is performed. The concentration of salt can be kept at a constant value in a short time during the first sterilization mode operation even if the surroundings are not flooded and the surroundings are not polluted. Prevents a large amount of salt solution from flowing into the tank from the salt dissolving tank and consuming a large amount of salt, and also prevents overcurrent from flowing when high-concentration salt solution is electrolyzed to generate chlorine, causing damage to electronic components. In addition, when the aging process is performed, the polarity is reversed, no malfunction occurs even if an inrush current flows, and the user is informed that the saline is being supplied to the electrolytic cell and the normal circulation is performed. There is no danger of giving the user a feeling of anxiety even if the noise is different from driving, In addition, there is no danger of high concentration saline or electrolyzed water when operation is stopped in the middle of electrolysis and operation is resumed, and chlorine water is allowed to flow through the filtration tank into the bath tub and then temporarily immersed in the bath tub water. It is an object of the present invention to provide a bathtub water purifying device capable of notifying a user that the free chlorine concentration is high.

[0012]

According to the present invention, there is provided a bath tub water purifying apparatus according to the present invention, in which a bath tub water of a bath tub is sucked by a pump 2, circulated, and returned to the bath tub again. A bypass passage 3 branching from the downstream side of the pump 2, a filtration tank 5 provided with a filter 4 for filtering bath water in the middle of the bypass passage 3, and a primary side of the filter 4 of the filtration tank 5. And the upstream side of the pump 2 of the circulation flow path 6 are communicated with the circulation water path 9 for cleaning, the drainage path 11 is connected to the circulation water path 9 for cleaning, and the branch is branched from the circulation flow path 6 or the bypass flow path 3 and the tip is A bath water purifier A provided with a chlorine generator B in a branch passage 24 communicating upstream of the filtration tank 5 of the bypass flow path 3, wherein the chlorine generator B is a salt dissolving tank 28 for dissolving salt. Sent from the salt dissolution tank 28 An electrolytic cell 27 for electrolyzing salt water to generate chlorine, and an intermediate portion between the first half and the second half of the branch channel is provided with a first branch channel 26a and a second branch channel 26b via a valve. The electrolytic bath 27 is connected to the first branch passage 26a, and the salt dissolving tank 2 is
8, the downstream end of the second branch passage 26b is connected to the electrolytic cell 27, the electrolytic tank 27 and the bypass flow path 3 are communicated with each other by the latter half of the branch path 24, and the bath water is supplied to the circulation flow path 6.
Purifying operation means for circulating and purifying the water through the pump 2 and the bypass passage 3, and the bathtub water is supplied from the pump 2 → the bypass passage 3 → the filtration tank 5.
A filter washing means 32 for washing the filter 4 by flowing along the primary side of the filter 4 → the washing circulation channel 9 → the pump 2, and then discharging the washed wastewater from the drainage channel 11 to the outside; A supply of saline solution from the tank 28 to the electrolysis tank 27 → electrolysis in the electrolysis tank 27 → antibacterial operation means for sending chlorine generated in the electrolysis tank 27 to the bathtub through the filtration tank 5, and when the power switch is turned on and salt dissolution It is preferable to provide a means for supplying water from the second branch passage 26b to the salt dissolving tank 28 after replenishing the tank 28 with salt. With such a configuration, the purification operation, the filter cleaning operation, and the bacteriostatic operation can be performed, and further, when there is no water in the salt dissolving tank 28 when the power switch is turned on and after the salt dissolving tank 28 is supplemented with salt. (Even if the water is drained from the salt dissolving tank before replenishing the salt so that the water does not overflow and contaminate the surroundings when replenishing the salt) After replenishing the salt in the salt dissolving tank 28, water is supplied from the second branch passage 26b to the salt dissolving tank 28 to dissolve the salt in advance before the sterilization operation.

When the power switch is turned on and the salt dissolving tank 2
After the replenishment of salt into the tank 8 and before supplying water to the electrolytic cell 27 via the salt dissolving tank 28, water is supplied directly from the first branch passage 26a to the electrolytic tank 27, and further, from the second branch passage 26b via the salt dissolving tank 28. It is preferable to provide a means for supplying water to the electrolytic cell 27 again from the first branch channel 26a after supplying water to the electrolytic cell 27 again. With such a configuration, a large amount of salt solution is supplied from the salt dissolving tank 28 to the electrolytic tank 27, or through the salt dissolving tank 28 when the power switch is turned on and after salt is replenished to the salt dissolving tank 28. In the state where the saline solution is supplied and accumulated in the electrolytic cell 27, when the normal operation is performed and the sterilization operation is performed, the salt dissolving tank 28 enters the electrolytic tank 27 where the saline solution is accumulated. Is supplied to prevent the saline solution in the electrolytic cell 27 from becoming highly concentrated.

When the power switch is turned on and the salt dissolving tank 2
After the replenishment of salt into the tank 8, the salt dissolving tank 28
It is preferable to provide a means for supplying an electric current to the electrode of the electrolytic cell 27 when supplying water to the electrolytic cell 27 and stopping the supply of water from the second branch passage 26b when the electrolytic current becomes a certain value or more. With such a configuration, a large amount of saline solution is supplied from the salt dissolving tank 28 to the electrolytic tank 27 when the power switch is turned on and when water is supplied from the salt dissolving tank 28 to the electrolytic tank 27 after replenishing the salt into the salt dissolving tank 28. Can be kept from entering. In particular, when a power failure occurs when the saline solution is contained in the electrolytic cell 27, when the power is turned on and the initial operation is performed, a current of a certain value or more immediately flows when a current is supplied to the electrode in the electrolytic cell 27. When this is detected, the pump is stopped and water supply from the salt dissolving tank 28 can be stopped immediately.

When the power switch is turned on, the salt dissolving tank 28
Before water is supplied to the electrolytic cell 27 through the first branch passage 26a.
To the electrolytic cell 27 directly from the second branch path 26b.
, Water is supplied to the electrolytic cell 27 via the salt dissolving tank 28, and then water is supplied again directly to the electrolytic cell 27 from the first branch passage 26a.
At the beginning of the first purification operation, it is preferable to provide aging processing means for performing aging processing by supplying power to the electrodes, and to stop detection of the electrolytic current when the polarity of the aging processing is reversed by the aging processing means. With such a configuration, it is possible to prevent an erroneous operation without detecting an inrush current during the aging process.

Further, when the amount of salt in the salt dissolving tank 28 is reduced, a salt replenishment display section 41 for displaying that salt replenishment is necessary.
When the operation switch 36 is turned off during the display by the salt replenishment display section 41, it is preferable to provide a means for operating a valve so that the first half of the branch flow path communicates with the second branch path 26b. . With such a configuration, when the operation switch 36 is turned off when the salt replenishment display section 41 indicates that salt replenishment is required, the first half of the branch flow path and the second branch path are automatically turned off. The water in the salt dissolving tank 28 is drained by communicating with 26b, and when the upper lid of the salt dissolving tank 28 is opened to replenish the salt, water can be prevented from overflowing from the upper opening.

Further, it is preferable to provide a display section 48 for displaying that the saline solution in the salt dissolving tank 28 is being supplied to the electrolytic tank 27 in the bacteriostatic operation by the bacteriostatic operation means. With such a configuration, the user can immediately understand that the saline solution is being supplied to the electrolytic cell 27 in the bacteriostatic operation.

Further, when the operation is stopped during the electrolysis, the bath water is supplied from the first branch passage 26a to supply the bath water from the electrolysis tank 27 before the operation is stopped. Preferably, means for extruding are provided. With such a configuration, even if the operation is stopped during the electrolysis, the liquid contained in the electrolytic cell 27 is pushed out from the electrolytic tank 27 to the bypass flow path 3 and discharged, so that when the operation is restarted, Even when the salt solution is supplied again from the salt dissolving tank to the electrolytic tank, the inside of the electrolytic tank does not become a high-concentration saline solution or electrolytic water.

Further, it is preferable to provide a display unit for displaying the supply of chlorine for a certain period of time after the start of the mode in which the chlorine generated in the electrolytic cell 27 is sent to the bath 1 through the filtration tank 5. With this configuration, the user can know that the free chlorine concentration is temporarily high.

Further, a salt dissolving tank 28 is connected to the second branch passage 26b.
Means for controlling the water supply to the salt dissolving tank 28 from the second branch passage 26b by operating the pump 2 for a time set by a timer, and then performing the inching operation of the pump 2 several times. Is preferably provided. With such a configuration, a large amount of saline solution is supplied from the salt dissolving tank 28 to the electrolytic tank 27 when the power switch is turned on and when water is supplied from the salt dissolving tank 28 to the electrolytic tank 27 after replenishing the salt into the salt dissolving tank 28. When the salt water is contained in the electrolytic cell 27 (for example, in the case of a power outage, when the power is turned on and the initial operation is performed, the salt water is contained in the electrolytic cell 27 in order not to enter the cell. ) When the value of the current flowing through the electrode exceeds a certain value, the pump 2
In this case, the pump 2 is stopped when the pump 2 is inching, so that the pump 2 is stopped when the pump 2 is continuously operated. Even after the stop, the water supply from the salt dissolving tank 28 to the electrolytic tank 27 side is not continued due to inertia.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

FIG. 1 is a schematic piping diagram of a bathtub water purification apparatus A. The bathtub water purification device A is provided with a circulation flow path 6. One end of the circulation flow path 6 has a water absorption section 19, and the other end has a water discharge section 20. The water absorption section 19 and the water discharge section 20 have a bathtub. One can be immersed in bath water. In the embodiment shown in the accompanying drawings, the water absorbing / discharging block 521 has a water absorbing portion 19.
And the water discharge section 20, so that the water absorption / water discharge block 52 is immersed in the bathtub water of the bathtub 1.
Although not shown, the water absorbing section 19 is provided with a pre-filter for capturing hair, scale, and the like.

The circulation passage 6 has a water discharging portion 2 from the water absorbing portion 19 side.
The pump 2, the first valve 7, and the heater 21 are provided in this order from the 0 side. A bypass flow path 3 is branched from a downstream side of the pump 2 in the circulation flow path 6, and a downstream end of the bypass flow path 3 is slightly connected to the circulation flow path 6 in the embodiment shown in FIG. Although the connection is made in the foreground, the connection may be made immediately upstream or immediately downstream of the heater 21. A third valve 10, a filter tank 5 having a filter 4 therein, and a flow sensor 2 are arranged in the bypass passage 3 in order from the upstream side to the downstream side.
3, a second valve 8 is provided.

The primary side of the filter 4 of the filtration tank 5 and the upstream side of the pump 2 of the circulation flow path 6 are communicated with the cleaning circulation water path 9 through the cleaning circulation water path 9 via the fourth valve 12. Drainage channel 11 is connected.

A branch passage 24 is provided downstream of the branch of the circulation passage 6 with the bypass passage 3 and upstream of the first valve 7. The downstream end of the branch passage 24 is bypassed. It is connected between the third valve 10 of the flow path 3 and the filtration tank 5. The branch passage 24 branches into a first branch passage 26a and a second branch passage 26b via a fifth valve 25 on the way.
The branch path 26a is connected to the electrolytic cell 27, the second branch path 26b is provided with a salt dissolving tank 28 on the way, and the downstream end is connected to the electrolytic cell 27. The road 3 is connected to the branch passage 24 at the latter half thereof. The electrolytic cell 27 and the salt dissolving tank 28 constitute a chlorine generator B.

As shown in FIG. 3, the control unit 30 controls the pump 2, the heater 21, and the valves (the first valve 7, the second valve 8, the third valve) as shown in FIG. 10, the fourth valve 12, the fifth valve 25), and various display units to be described later. The control means 30 includes a purifying operation means 31 for circulating and purifying bath water through the circulation flow path 6 and the bypass flow path 3, and a pump 4 → a bypass flow path 3 → a filter 4 of the filtration tank 5. Primary side → Circulating water channel 9 for cleaning
→ The filter 4 is washed by flowing through the path of the pump 2, and then the filter washing means 32 for discharging the drained water after washing from the drainage channel 11 to the outside, and the circulation flow for washing by flowing the washing liquid only to the circulation passage 6. A road cleaning means 33 and a chlorine water supply means 34 are provided.

FIG. 2 shows an operation panel 35 provided in the bathtub water purification apparatus A. An operation switch 36 for turning the operation on and off, and an operation lamp 36a which is turned on when the operation switch 36 is turned on. , A heat retention on / off switch 37 for turning the heater 21 on and off, and a selection switch 38 constituting chlorine generation amount selection means for adjusting the chlorine generation amount according to the number of users (bathers). Yes,
Further, a pre-filter cleaning display section 39 for indicating that maintenance by cleaning the pre-filter is required as the maintenance display section 15, a bath water exchange display section 40 for displaying that bath water replacement is required, and a salt dissolving tank 28. There is provided a salt replenishment display section 41 that indicates that supplementation of salt into the
A filter detergent cleaning display unit 13 for displaying that the filter 4 needs to be cleaned with detergent, an operation switch 43 for filter detergent cleaning, a circulation channel cleaning display unit 16 for displaying that the circulation channel 6 needs to be cleaned, and circulation. An operation switch 45 for cleaning the flow path, a filter replacement display section 14 for displaying that the filter 4 needs to be replaced, and a reset switch 47 for resetting a timer and the like described later when the filter 4 is replaced are provided. A display unit 48 is provided for displaying the temperature of the hot water, the mode at the time of maintenance, and the like in characters and pictures. Here, in the pre-filter cleaning display section 39, when three days have passed since the last pre-filter cleaning, a lamp is turned on to indicate that pre-filter cleaning is necessary. In addition, the bath water exchange display section 40 is configured so that when 30 days have passed since the last bath water exchange, a lamp is turned on to indicate that the bath water needs to be replaced.

The main operation modes in the present invention include:
It has a normal circulation mode by the purification operation means 31, a filter cleaning mode by the filter cleaning means 32, a circulation flow path cleaning mode by the circulation flow path cleaning means 33, and a bacteriostatic mode by the chlorine water supply means.

In the normal circulation mode, the first valve 7, the second valve 8, and the third valve 10 are opened by the purifying operation means 31, the fourth valve 12, the fifth valve 25 are closed, and the heater is operated. 21
Is turned on and the pump 2 is turned on, so that the bathtub water in the bathtub 1 is sucked into the circulation flow path 6 from the water absorbing portion 19, and a part of the bathtub water flows to the heater 21 side, The water is heated by 21 and sent to the water discharge section 20 side, and the other bath water flows through the bypass flow path 3 and passes through the filtration tank 5 to be filtered by the filter 4 composed of a microfiltration filter such as a hollow fiber membrane. The water is sent to the water discharging section 20 side, merged and returned to the bathtub 1. In this way, the bathtub water is purified while circulating. During the operation in the normal circulation mode, the temperature of the hot water circulating on the display unit 48 is displayed, and the temperature of the bathtub water heated by the heater 21 is detected by a temperature detecting means provided in the heater 21. It is what is displayed.

Next, the filter cleaning operation includes a filter cleaning mode using bath water and a filter cleaning mode using detergent.

The filter cleaning mode using bathtub water includes a filter regular cleaning in which the operation of the filter 4 using the bathtub water is always performed at a fixed time interval, and a clogging state of a certain level or more by the filter 4 clogging state detecting means. When the state is detected, there is a temporary cleaning of the filter that is temporarily operated.

In both the regular cleaning of the filter and the temporary cleaning of the filter, the cleaning operation is performed as shown in the flowchart of FIG. That is, the first valve 7, the second valve 8, and the fifth valve 25 are closed, the third valve 10 is opened, and the fourth valve 1 is opened by the filter cleaning means 32.
When the circulating water passage 9 for washing is opened and the drainage passage 11 is closed, the heater 21 is turned off, and the pump 2 is turned on to perform high-speed operation, the bath water is changed from the pump 2 to the bypass passage 3 to the filtration tank 5.
Of the filter 4, the washing circulating water passage 9 → the pump 2, and circulates in this closed loop to remove dirt, bacteria, etc. attached to the primary side of the filter 4 such as a microfiltration filter. 4 is performed. This is the operation in the “filter circulation cleaning mode” indicated by reference numeral 100 in the flowchart of FIG. Here, in the case of a type in which the nozzle 50 that injects the water flowing through the bypass channel 6 in the filter tank 5 to the filter 4 injects the primary outer periphery of the filter 4 while rotating around the primary outer periphery of the filter 4, The "filter circulation cleaning mode" is operated while rotating the cleaning motor 51 for rotating the nozzle 50. After the operation in the "filter circulation cleaning mode", the first valve 7, the second valve 8, and the fifth valve 25 are closed, the third valve 10 is opened, and the fourth valve
The valve 12 is closed by closing the circulating water channel 9 for cleaning, the drain channel 11 is opened, the heater 21 is turned off, the pump 2 is turned on, and low-speed operation is performed. Is discharged from the drainage channel 11 to the outside. This is denoted by reference numeral 101 in the flowchart of FIG.
This is the operation of the “drain rinsing mode” indicated by.

During the operation in the filter cleaning mode using the bath water, the display unit 48 indicates that the filter is being cleaned. For example, "CL" (abbreviation for cleaning) is displayed on the display unit 48.

The filter cleaning mode using detergent is as follows.
When a message indicating that the filter 4 needs to be cleaned with detergent is displayed on the filter detergent cleaning display unit 13 (for example, displayed by blinking of the filter detergent cleaning display unit 13), the operation switch 43 for filter detergent cleaning is turned on. In a mode in which the water absorbing section 19 and the water discharging section 20 are arranged in the bath water in the bath tub 1 and a detergent is put in the bath tub water, or the water absorbing section 19 and the water discharging section 20 are changed to the detergent and the water. When the operation switch 43 for cleaning the filter detergent is turned on in a state in which the filter is put in the bucket, the first valve 7 and the second valve 8 are closed by the filter cleaning means 32, and the third valve 10 is opened. The circulating water passage 9 for cleaning the fourth valve 12 and the drain passage 11 are closed, and the first branch passage 2 that connects the fifth valve 25 to the electrolytic cell 27.
6a is open and the second branch passage 26 communicating with the salt dissolving tank 28
b, the heater 21 is turned off, the pump 2 is turned on, and the bath water is operated by the pump 2 → the bypass channel 3 →
Salt dissolving tank 28 → bypass channel 3 → filter 4 of filtration tank 5
Flows through the path of the primary side → the circulating water channel 9 for washing → the pump 2 and circulates through this closed loop to remove dirt, bacteria, etc. attached to the primary side of the filter 4 such as a microfiltration filter, thereby removing the detergent of the filter 4. Washing is performed. Next, the water in the bathtub 1 or the bucket containing the detergent is drained, fresh water is poured into the bathtub or the bucket, and then the first valve 7 and the second valve 8 are closed by the filter cleaning means 32. , The third valve 10 is opened, the fourth valve 12 is closed, the cleaning circulation channel 9 is closed and the drainage channel 11 is opened, and the fifth valve 25 is connected to the electrolytic cell 2.
7 is open and the salt dissolution tank 28 is open.
The second branch passage 26b communicating with the filter is closed, the heater 21 is turned off, the pump 2 is turned on, and the pump 2 is turned on to perform rinsing. It is discharged to the outside. Even in the operation of the filter cleaning mode using the detergent, in the case of the type in which the nozzle 50 rotates, the operation in the above-mentioned "filter circulation cleaning mode using the detergent" is performed while the cleaning motor 51 is rotating. During the operation in the filter circulation cleaning mode using the detergent, the display unit 48 indicates that the filter is being cleaned. For example, “CL” is displayed on the display unit 48. At the same time, the flashing filter detergent cleaning display section 13 is switched to continuous lighting, which also indicates that the filter circulation cleaning mode using detergent is in operation.

In the circulation channel cleaning mode, when it is displayed on the circulation channel cleaning display section 16 that the circulation channel 6 needs to be cleaned (for example, the blinking of the filter detergent cleaning display section 13 is displayed). ), Operation switch 4 for cleaning the circulation channel
In a mode in which the operation is performed by turning on the water bath 5, the detergent is put into the bathtub water while the water absorbing unit 19 and the water discharging unit 20 are arranged in the bathtub water in the bathtub 1, or the water absorbing unit 1 is placed in the bathtub water.
9. Put the spouting part 20 in a bucket containing detergent and water,
Thereafter, the first switch 7 and the second valve 8 are opened by the circulation channel cleaning means 33 by turning on the operation switch 45 of the circulation channel cleaning, and the third valve 10, the fourth valve 12, The fifth valve 25 is closed, the heater 21 is turned on, and the pump 2 is turned on so that the bathtub water in the bathtub 1 is drained.
The water is sucked into the circulation channel 6, and all the bathtub water passes through the heater 21 and is returned from the water discharger 20 into the bathtub 1. By repeating this circulation, the inside of the circulation channel 6 is washed with a detergent. When the washing with the detergent is completed, the water containing the detergent is drained from the bathtub 1 or the bucket, new rinsing water is put into the bathtub 1 or the bucket, and then the circulation channel 6 is similarly washed and drained. Thereby, the circulation channel can be cleaned. During the operation of the circulation channel cleaning mode, the display unit 48 indicates that the circulation channel is being cleaned. For example, “CL” is displayed on the display unit 48. In addition, the circulation channel cleaning display section 16, which has been blinking at the same time, is switched to continuous lighting, which also indicates that the operation in the circulation channel cleaning mode is being performed.

The bacteriostatic mode operation is composed of four stages of electrolytic cell water supply operation mode 102 → salt water supply operation mode 103 → electrolysis operation mode 104 → chlorine water supply operation mode 105 , as shown in the flowcharts of FIGS. Is performed in a simple operation.

That is, in the sterilization mode operation, first, FIG.
As shown in the figure, the first valve 7 and the second valve 8 are opened, the third valve 10 and the fourth valve 12 are closed, and the fifth valve
When the pump 2 is operated with the first branch 26a communicating the valve 25 with the electrolytic cell 27 open and the second branch 26b communicating with the salt dissolving tank 28 closed, the heater 21 is heated. Electrolyte bath 2
7. This is the electrolytic cell water supply operation mode 102.

Then, the first valve 7, the second valve 8, and the third valve 10 are opened by the chlorine water supply means 34, and the fourth valve 12 is opened by the circulating water passage 9 for cleaning and the drain passage 11 Closed, fifth valve 2
5 is controlled so that the first branch 26a communicating with the electrolytic cell 27 is closed and the second branch 26b communicating with the salt dissolving tank 28 is opened, the pump 2 is operated at a low speed, and the electrodes are energized to turn on the electrolysis. To In this case, by detecting the current value between the electrodes in the electrolytic cell 27, the salt concentration in the electrolytic cell 27 is measured, and the operation of the pump 2 is jogged until the constant salt concentration is reached. The salt solution is supplied from the salt dissolving tank 28 to the electrolytic tank 27 by repeating the low-speed operation at regular intervals so that the concentration of the salt solution in the electrolytic tank 27 becomes a target. Next, the first valve 7, the second valve 8, and the third valve 10 are opened, and the fourth valve 12, and the fifth valve 25 are closed. This is the saline solution supply operation mode 103. In the salt solution supply operation mode 103, when the electrolytic cell voltage is measured and the excessive salt is detected, an error is displayed on the display unit 48 and the operation is stopped. During the saline supply operation, there is a possibility that the user may feel uneasy because the operation sound is different from that in the normal circulation mode operation. However, in the present invention, the saline supply is displayed on the display unit 48 during the saline supply operation. The display during driving is displayed so that the user can understand. Here, since the high-temperature bath water is supplied into the electrolytic cell 27 in advance by the electrolytic-water supply operation as described above, the salt solution is supplied from the salt dissolving tank 28, and the high-temperature water is supplied to the high-temperature water in the electrolytic cell 27. Even after mixing, the salt solution in the electrolytic tank 27 maintains a certain high temperature state, and effective electrolysis can be performed by electrolyzing the high temperature salt solution in the next electrolysis operation. .

Next, the pump 2 is operated at a medium speed with the first valve 7, the second valve 8 and the third valve 10 opened and the fourth valve 12 and the fifth valve 25 closed. A current is passed between the electrodes in the electrolytic cell 2 (that is, the electrolysis is turned on) while generating chlorine in the electrolytic cell 27 while the above-described normal circulation is being performed). This electrolysis time is, for example, about one hour. This is the electrolytic operation. When the operation switch is operated in the middle of the electrolysis operation to stop the operation, first, the bathtub water is supplied from the first branch passage 26a to remove the liquid contained in the electrolysis tank 27 before the operation is stopped. The liquid is extruded into the bypass flow path 3, the liquid in the electrolytic cell 2 is replaced with bath water, and thereafter the operation is controlled by the control means so that the operation is actually stopped. In this way, even if the operation is stopped during the electrolysis, the liquid contained in the electrolytic cell 27 is pushed out of the electrolytic cell 27 to the bypass channel 3 and discharged. As a result,
When the operation is restarted, even if saline is supplied again from the salt dissolving tank to the electrolytic tank, the electrolytic tank does not become a high-concentration saline or electrolytic water, and an overcurrent flows during electrolysis. The control element for electrolysis is prevented from being destroyed.

After chlorine is generated in the electrolytic cell 27 as described above, the first valve 7 and the second valve 8 are opened by the chlorine water supply means 34 as shown in FIG. Closed, 4th
Is closed, the first branch passage 26a connecting the fifth valve 25 to the electrolytic cell 27 is open, and the second branch connecting the salt dissolving tank 28 is opened.
By closing the branch passage 26b, turning off the heater, and operating the pump 2 at a medium speed, the chlorine water is supplied to the bathtub 1 through the bypass passage 3 through the filtration tank 5 having the filter 4 therein. Is sterilized by the chlorine water and the bath water in the bathtub 1 is sterilized. Thereafter, the pump 2 is stopped, the first valve 7, the second valve 8, and the third valve 10 are opened, and the fourth valve 12, and the fifth valve 25 are closed. The above operation is the chlorine water supply operation mode 105.

As described above, the salt dissolving tank 28
When supplying the saline solution from the salt dissolving tank 28 to the electrolytic tank 27, the operation of the pump 2 is repeated at a low speed, a stop, and a low speed until the inside of the electrolytic tank 27 reaches a certain salt concentration. A saline solution is supplied into the tank 27 and the electrolytic cell 2
7, but even if the number of low-speed operations is equal to or more than a predetermined number (30 in the embodiment of FIG. 7), the target salt concentration (that is, the target salt concentration is determined by the table current value). If not, it is determined that the salt in the salt dissolving tank 28 is insufficient, and the lamp of the salt replenishment display 41 that indicates that salt replenishment to the salt dissolving tank 28 needs to be flashed. Is displayed. When the salt replenishment display section 41 is shorter than a certain time (three days in the embodiment) from the start of the blinking display, the operation returns to the normal operation. ) When the above time elapses, the electrolysis is turned off, the pump 2 stops, and the operation lamp 36
a turns off. In this case, the lamp of the salt replenishment display section 41 keeps blinking as described above. In any of the above cases, the operation switch 36 is turned off while the lamp of the salt replenishment display section 41 is blinking, and thereafter, the user replenishes the salt into the salt dissolving tank 28. When the operation switch 36 is turned off during the display of the replenishment display section 41 (that is, while the lamp of the salt replenishment display section 41 is blinking), the second branch path 26b side in which the fifth valve 25 communicates with the salt dissolving tank 28 is opened. The liquid in the salt dissolving tank 28 is drained from the side of the second branch 26b, and the water level of the salt dissolving tank 28 is lowered (by disposing the salt dissolving tank 28 in the bath tub water circulation device A at a high position, (The water level is lowered by the level difference.) When replenishing the salt by opening the lid of the upper opening of the salt dissolving tank 28, the liquid does not overflow from the upper opening of the salt dissolving tank 28, Something that won't pollute After the salt replenishment is performed as described above, when the operation switch 36 is turned on, the operation lamp 36a is turned on, the lamp of the salt replenishment display unit 41 is turned off, and the electrolytic cell initial operation mode is set.

The electrolytic cell initial operation mode is operated by the operation shown in the flow chart of FIG. 9. When the power switch is on, the operation switch 36 is turned on.
The first valve 7, the second valve 8, and the third valve 10 are opened, the fourth valve 12, and the fifth valve 25 are closed, and the pump 2 is turned on to perform a pump initial water supply operation. Next, the first valve 7, the second valve 8, and the third valve 10 are opened, the fourth valve 12 is closed, and the fifth valve 2
By operating the pump 2 in a state where the first branch passage 26a communicating the electrode 5 with the electrolytic tank 27 is open and the second branch passage 26b communicating with the salt dissolving tank 28 is closed, water is supplied into the electrolytic tank 27. Do.

Next, the first valve 7, the second valve 8, and the third valve 10 are opened, and the fourth valve 12 is connected to the cleaning circulation channel 9 and the drain channel 11 is closed. The pump 2 is operated with the first branch 26a connecting the valve 25 communicating with the electrolytic cell 27 closed and the second branch 26b communicating with the salt dissolving tank 28 opened, thereby supplying water to the salt dissolving tank 28. I do. Here, by supplying water from the first branch passage 26a to the electrolytic tank 27 as described above before supplying water from the second branch passage 26b to the salt dissolving tank 28,
When the water is supplied to the salt dissolving tank 28, a large amount of the concentrated salt solution in the salt dissolving tank 28 can be prevented from flowing out to the electrolytic tank 27, and the waste of the salt is eliminated. In supplying water to the salt dissolving tank 28, in the present invention, when an electric current is applied to the electrode of the electrolytic tank 27 and the electrolytic current becomes a certain value or more, the second branch path 26b
The water supply from is stopped. With such a configuration, when water is supplied from the salt dissolving tank 28 to the electrolytic tank 27 when the power switch is turned on and after the salt dissolving tank 28 is replenished with salt, the saline solution is supplied to the electrolytic tank 27 via the salt dissolving tank 28. Flows into the electrode of the electrolytic cell 27, so that the electrolytic current becomes equal to or higher than a predetermined value, and is detected at an initial stage of the inflow of the saline solution, and the water supply from the second branch passage 26b is stopped. A large amount of saline can be prevented from entering the electrolytic tank 27 from the salt dissolving tank 28. In particular, when a power failure occurs when the saline solution is contained in the electrolytic cell 27, when the power is turned on and the initial operation is performed, a current of a certain value or more immediately flows when a current is supplied to the electrode in the electrolytic cell 27. When this is detected, the pump is stopped and water supply from the salt dissolving tank 28 can be stopped immediately. Further, since the inside of the electrolytic cell 27 does not become a high-concentration saline solution, it is possible to prevent the salt from being wasted and to prevent an overcurrent caused by a current flowing between the electrodes to damage the electrolysis control element. Things. Further, in this case, when water is supplied from the second branch passage 26b to the salt dissolving tank 28, the pump 2 is first slightly moved several times, and then the pump 2 is operated for the time set by the timer to perform the second branch. The control means controls the supply of water from the passage 26b to the salt dissolving tank 28. That is, when the power switch is turned on and after the salt is supplied to the salt dissolving tank 28, the salt dissolving tank 28
In order to prevent a large amount of saline solution from entering the electrolytic tank 27 from the salt dissolving tank 28 when water is supplied to the electrolytic tank 27 from the above, when the saline solution is contained in the electrolytic tank 27 (for example, a power outage occurs). In the case, when the power is turned on and the initial operation is performed, the electrolytic solution is controlled so that the current value flowing through the electrode becomes equal to or more than a certain value and the pump 2 is stopped as described above. However, at this time, since the pump 2 is stopped when the pump 2 is inching, the salt dissolving tank is inert after the stop, such as when the pump 2 is stopped while the pump 2 is continuously operated. The water supply from 28 to the electrolytic cell 27 side is not continued.

Next, the first valve 7, the second valve 8, and the third valve 10 are opened, and the fourth valve 12 is opened with the cleaning circulation channel 9 open and the drain channel 11 closed, and the fifth valve 12 is closed. By operating the pump 2 with the first branch 26a connecting the valve 25 to the electrolytic cell 27 open and the second branch 26b communicating with the salt dissolving tank 28 closed, water is supplied into the electrolytic tank 27. Then, the water in the electrolytic cell 27 is extruded from the electrolytic cell 27 so that the electrolytic cell 27 is in a state of only bath water not containing salt water. This is because a large amount of the concentrated salt solution in the salt dissolving tank 28 flows into the electrolytic tank 27 at the time of initial water supply,
When the operation is shifted to the normal operation with the accumulated water and the electrolysis operation is performed, the electronic components may be broken because the saline solution is too concentrated. To prevent this, water was supplied from the second branch passage 26b to the salt dissolving tank 28. Later, the electrolytic bath 27 is supplied with water from the first branch passage 26a, and the inside of the electrolytic bath 27 is made to be in a state of only bath water which is not mixed with saline.

Next, the first valve 7, the second valve 8, and the third valve 10 are opened, the fourth valve 12, and the fifth valve 25 are closed, and the pump 2 is operated to perform normal circulation. It shifts to operation.

Although the above-described example has been described with respect to the initialization of the electrolytic cell 27 at the time of replenishing salt, the operation is started when the bath water purifier is installed, or when the operation is restarted at the time of a power failure, The initial operation of the electrolytic cell after the power switch is turned off operates as shown in the flowchart of FIG. That is, the basic operation of the initial operation of the electrolytic cell shown in FIG. 10 is the same as that of the initial operation mode of the electrolytic cell at the time of replenishing the salt. If the operation switch is turned on before entering the mode, the fourth valve 12 and the fifth valve 25 are immediately initialized, and then the electrolytic cell initial operation mode similar to the above is entered. The difference is that when the mode is ended and the operation shifts to the normal circulation operation, the electrode is aged for a fixed period of time (for example, 10 minutes) in the initial period of the normal purification operation mode. By performing the electrode aging in this manner, chlorine can be stably generated from the saline solution in the subsequent electrolytic operation. Inrush current occurs when the electrodes are reversed due to the above-mentioned aging of the electrodes.However, when the electrodes are reversed during the aging, the control is performed so that the detection of the current between the electrodes is stopped for a certain period of time. An electric current is detected, and an erroneous operation is performed based on the detection of the electric current between the electrodes by erroneously detecting that the electric current is excessively flowing between the electrodes.

In the present invention, depending on the number of users and the degree of dirt, the dirt condition of the bathtub water in the bathtub 1 in which the bathtub water purifying apparatus A of the present invention is installed differs from place to place. Therefore, in the present invention, the amount of chlorine generated can be adjusted in a plurality of stages. According to the number of users and the degree of dirt, the selection switch 38 is operated to adjust the number of users and the degree of dirt. It is adjusted so that the corresponding chlorine generation amount becomes optimal. Here, in changing the amount of chlorine generation, for example, the time for conducting electrolysis by energizing the electrodes of the electrolytic cell 27 or
Or the amount of salt supplied to the electrolytic bath 27 (that is, by adjusting the supply amount of the saline solution supplied from the salt dissolving bath 28 to the electrolytic bath 27 to change the target salt concentration of the electrolytic bath 27). Is what you do. By doing so, there is no waste of salt consumption, and the bacteria can be effectively controlled in accordance with the number of users and the state of contamination.

FIG. 4 is a flowchart showing the operation of the bath water purifier of the present invention in one day (24 hours). Note that which mode to start the day in FIG. 4 can be adjusted by setting the time.

Thus, in the present invention, the purifying operation of the bathtub water in the normal circulation mode is repeated every predetermined time within one day (four times a day in the embodiment of FIG. 4). The filter cleaning in the filter cleaning mode is set during the operation in the normal circulation mode. In this filter cleaning, the filter regular cleaning and the filter temporary cleaning are set to be alternately repeated every other time. In addition, the operation in the bacteriostatic mode is performed as described above in the electrolytic cell water supply operation mode 102 → the saline solution supply operation mode 103 →
Although the operation is divided into four stages of electrolysis operation mode 104 → chlorine water supply operation mode 105, a saline solution supply operation → electrolysis operation is performed before the above-mentioned filter regular cleaning, and a chlorine water supply operation is performed after the filter regular cleaning. It is set as follows.
That is, in the flowchart shown in FIG. 4, within one day,
Normal circulation mode → (temporary filter cleaning mode) → normal circulation mode → sterilization mode (electrolyte tank water supply operation → saline solution supply operation → electrolysis operation) → filter regular cleaning mode → sterilization mode (chlorine water supply operation) → normal circulation Mode → (temporary filter cleaning mode) → normal circulation mode → bacteria control mode (electrolyte tank water supply operation → saline solution supply operation → electrolysis operation) → filter regular cleaning mode → bacteria control mode (chlorine water supply operation) automatically The operation mode is switched and the operation is performed.

Here, in the present invention, the operation in the filter temporary cleaning mode is a temporary operation only when the clogging state detecting means of the filter 4 detects that the filter is clogged to a certain level or more. In the present embodiment, the flow rate sensor 23 detects the flow rate flowing through the bypass flow path 3, and when the flow rate is equal to or more than a fixed value (1.0 liter / min in the embodiment), the filter 4 is clogged more than a certain value. When the flow rate by the flow rate sensor 23 is equal to or less than a fixed value (1.0 liter / min in the embodiment), the filter 4 is regarded as not clogged, and The operation in the temporary purification mode operation is not performed.
As described above, when the clogging of the filter 4 is equal to or more than a certain value, the filter temporary cleaning mode operation is performed to automatically increase the number of times the filter 4 is washed, so that the filter 4 is more effectively washed. The bathtub water can be stably purified by the filter 4 in the normal circulation.

Further, in the present invention, after the filter regular cleaning mode ends (before the chlorine water supply operation), the control means performs the “care and display processing”. "Care / display processing" is as shown in the flowchart of FIG. That is, the timer counts the filter detergent cleaning time (for example, 30 days),
The filter replacement time is counted (for example, one year), and when the filter 4 is set in the filter tank 5 and the filter replacement time (one year) or more is reached, the filter 4 needs to be replaced. This is displayed on the filter replacement display unit 14. On the other hand, if it is one year or less, the clogged state is detected by the flow rate sensor 23 as the clogged state detecting means of the filter 4 and clogging is performed at a predetermined value or less (for example, 1.0 liter / min or more). At the time of the flow rate), it is determined that cleaning of the filter 4 with the detergent is not necessary, and the process shifts to the next normal circulation mode. On the other hand, when the clogging state is detected by the flow rate sensor 23 and the clogging is equal to or more than a predetermined value (for example, at a flow rate of 1.0 liter / min or less), if 30 days or more have elapsed, the second time Is determined, and if it is not the second time, that is, the first time, it is displayed on the filter detergent cleaning display section 13 that the filter 4 needs to be cleaned by detergent cleaning. At this time, in the embodiment shown in FIG. 5, when the detergent cleaning due to the clogging of the filter 4 is required, the circulation flow path 6 is also indicated as dirty and the cleaning is necessary on the circulation flow path cleaning display section 16 at the same time. It has become. Further, when the clogging state is detected by the flow rate sensor 23 and the clogging is equal to or more than a predetermined value (for example, when the flow rate is 1.0 liter / min or less), 30 days or more have passed, and the second time or more Is displayed on the filter replacement display section 14 that the filter 4 needs to be replaced.

Here, by flashing the lamp of the filter detergent cleaning display section 13, it is displayed that the filter 4 needs to be cleaned with the detergent. When this is displayed, the user operates the operation switch 36. Turn off the bathtub 1
Alternatively, the detergent is put in the bucket, and then the operation switch 43 for cleaning the filter detergent is turned on to perform the above-described filter cleaning mode operation using the detergent. At this time, the filter detergent cleaning display section 13 is lit to indicate that the filter detergent cleaning is being performed. When the cleaning is completed, the filter detergent cleaning display section 1 is turned off, and the "30 day count" is cleared.

Although not described in the flowchart of FIG. 5, the lamp of the circulation channel cleaning display section 16 blinks to indicate that the circulation channel 6 needs to be cleaned. When this is displayed, the user turns off the operation switch 36, puts the detergent in the bathtub 1 or the bucket,
Thereafter, the operation switch 45 for cleaning the circulation channel is turned on to perform the above-described circulation channel cleaning mode operation. At this time, the circulation channel cleaning display unit 16 is lit to indicate that the circulation channel cleaning is being performed. When the cleaning is completed, the circulation channel cleaning display unit 16 is turned off, and the “30 day count” is cleared. . Here, the cleaning operation of the circulation flow path 6 includes one cleaning and two subsequent rinses, and the control time is set by a timer. The operation switch 45 for circulating channel cleaning performs the above-described operation in the first operation, but the operation switch 45 for circulating channel cleaning operates after the first operation, during the cleaning or rinsing. When the second operation of the cleaning operation switch 45 is performed, the next rinse is performed at the time of cleaning, and the second rinse is performed at the time of the first rinse.
At the time of the second rinsing, it is controlled to end. Accordingly, when the user visually determines that the bathtub 1 or the water in the bucket is clean during the cleaning of the circulation channel, and determines that the water is in a clean state during the cleaning or rinsing, as described above. By performing the second operation of the operation switch 45 for road cleaning,
The next operation can be skipped, and the cleaning time can be reduced by the user's will. In particular, when the bathtub 1 is being washed with water, the washing is performed using a large amount of water, so that the washing can be performed in a shorter time than in the case where a bucket is used. The cleaning time can be shortened.

When the lamp of the filter replacement display section 14 flashes, it is displayed that the filter 4 needs to be replaced. When this is displayed, the user turns off the operation switch 36 to turn off the filter 4. After that, the operation switch 36 is turned on, and the reset switch 47 is turned on to reset the timer. As a result, the lamp of the filter replacement display section 14 is turned off, the count of 30 days / year (365 days) is cleared, and the operation is restarted.

By the way, in the present invention, a non-volatile memory for storing the count of the timer for counting the replacement time of the filter 4, the timer for counting the replacement of the bath water, and the timer for counting the circulation flow channel cleaning. A memory (EEPROM) is provided so that the timer can be accurately counted even if a power failure occurs.

In the present invention, when cleaning such as cleaning of the filter 4 with a detergent, replacement of the filter 4 and cleaning of the circulation channel 6 is required, the maintenance display unit 15 is provided as described above. The lamps of the filter detergent cleaning display unit 13, the circulation channel cleaning display unit 16, and the filter replacement display unit 14 are displayed by blinking. After the lapse of time (that is, when the maintenance display section 15 indicates that maintenance is required, the operation switch 43 for cleaning the filter detergent, the operation switch 45 for cleaning the circulation channel, and the reset switch 47 are not operated. (After a certain period of time has elapsed), the operation is controlled to be automatically stopped by a timer. In this way, even if the user needs maintenance, the operation is automatically stopped after a certain period of time without maintenance, and the operation is not performed in a state where the purification capacity is reduced. To do so.

In the present invention, when the operation is stopped during the operation of the filter 4 in the cleaning mode, the first
, The second valve 8 and the fifth valve 25 are closed, and the third valve 10
Is opened, the fourth valve 12 is closed, the washing circulation channel 9 is closed, and the drainage channel 11 is opened, and drainage containing dirt, bacteria, and the like peeled off by washing the filter 4 is discharged from the drainage channel 11 to the outside. After the drainage is completed, the operation is controlled to be stopped. Thus, even if the operation is stopped during the operation of the filter 4 in the cleaning mode, the water in the filtration tank 5 is drained from the drainage channel 1.
By being drained from the filter 1, the dirt on the filter 4 which has been peeled off and removed can be prevented from adhering to the filter 4 again.

[0058]

According to the first aspect of the present invention, the chlorine generator generates chlorine by electrolyzing a salt dissolving tank for dissolving salt and a salt solution sent from the salt dissolving tank. And an intermediate part between the first half and the second half of the branch flow path is branched into a first branch path and a second branch path via a valve, and the electrolytic tank is connected to the first branch path. , A salt dissolving tank is arranged in the middle of the second branch, and the downstream end of the second branch is connected to the electrolytic tank, and the electrolytic tank and the bypass flow path are communicated by the latter half of the branch path. Purifying operation means for circulating and purifying bath water through a circulation flow path and a bypass flow path,
Bath water flows through the path of the pump → bypass flow path → primary side of the filter in the filtration tank → circulating water channel for cleaning → pump to wash the filter, and then drains the drained water after washing to the outside through the drain channel. Means and a saline solution supply from the salt dissolving tank to the electrolytic tank → electrolysis in the electrolytic tank → a bacteriostatic operation means for sending chlorine generated in the electrolytic tank to the bath tub via the filtration tank, and when the power switch is turned on and salt dissolving A means for supplying water to the salt dissolving tank from the second branch after the tank is replenished with salt is provided, so that a purifying operation, a filter washing operation, and a bacteriostatic operation can be performed. Even if there is no water in the salt dissolving tank after replenishing the salt, water may overflow and pollute the surroundings when salt is replenished by draining water from the salt dissolving tank before replenishing the salt. Power switch off) It is possible to supply water to the salt dissolving tank from the second branch at the time and after replenishing the salt in the salt dissolving tank, and to dissolve the salt in advance before the bacteriostatic operation. In the operation in the bacteriostatic mode, the concentration of the salt can be set to a constant value in a short time.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the electrolytic cell is connected via the salt dissolving tank when the power switch is turned on and after the salt is dispensed into the salt dissolving tank. Before water is supplied to the electrolytic cell, water is supplied directly from the first branch to the electrolytic cell, and further, water is supplied from the second branch to the electrolytic cell via the salt dissolving tank, and then water is supplied directly to the electrolytic cell again from the first branch. A large amount of salt solution is supplied from the salt dissolving tank to the electrolytic tank, or the salt solution is supplied to the electrolytic tank via the salt dissolving tank when the power switch is turned on and after the salt is replenished to the salt dissolving tank, and the accumulated salt solution remains. In the state of the above, when the operation is shifted to the normal operation and the bacteriostatic operation is performed, the saline is supplied from the salt dissolving tank into the electrolytic tank in which the saline is accumulated, and the saline in the electrolytic tank becomes a high concentration. As a result, overcurrent flows during electrolysis, There are those which can be prevented from breaking.

According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, when the power switch is turned on and after replenishing the salt in the salt dissolving tank, the salt dissolving tank from the second branch path. When the water is supplied to the electrode of the electrolytic cell and the electrolytic current reaches a certain value or more, the water supply from the second branch is stopped. Therefore, when the power is turned on and after the salt is supplied to the salt dissolving tank, the salt dissolving tank is discharged. When the water is supplied to the electrolytic cell from the tank, a large amount of saline solution can be prevented from entering the electrolytic cell from the salt dissolving tank. In particular, if a power failure occurs when the saline solution enters the electrolytic cell and enters, when the power is turned on and the initial operation is performed, a current of a certain value or more immediately flows when the current flows to the electrode in the electrolytic cell. The water supply from the salt dissolving tank can be stopped as soon as the pump is stopped upon detection. As a result, a large amount of saline solution can be prevented from entering the electrolytic tank from the salt dissolving tank in the initial stage of operation, and the electrolytic tank can be stopped. This prevents a large amount of saline solution from entering the electrolysis control element and destroys the electrolysis control element due to an overcurrent, and also eliminates wasteful consumption of salt.

According to the fourth aspect of the present invention, in addition to the effects of the first aspect of the present invention, when the power switch is turned on, before the water is supplied to the electrolytic cell via the salt dissolving tank, the first branch is provided. Water is supplied directly to the electrolytic cell from the channel, and further supplied to the electrolytic cell from the second branch channel via the salt dissolving tank, and then directly to the electrolytic cell again from the first branch channel. At the time of operation, aging processing means for supplying an electric current to the electrode at the beginning of the first purification operation to perform aging processing is provided, and when the polarity is reversed at the time of aging processing by this aging processing means, detection of the electrolytic current is stopped. Therefore, it is possible to prevent an erroneous operation such as an error caused by excessive injection of the saline solution without detecting the inrush current at the time of the aging process.

According to the fifth aspect of the present invention, in addition to the effect of the first aspect of the present invention, when the amount of salt in the salt dissolving tank is reduced, a salt indicating that replenishment of salt is required is displayed. A replenishment display is provided, and means is provided for operating the valve so that the first half of the branch flow path communicates with the second branch when the operation switch is turned off during display by the salt replenishment display. When the operation switch is turned off while the salt replenishment display section indicates that salt replenishment is required, the first half of the branch flow path and the second branch path automatically communicate with each other, and the inside of the salt dissolving tank is opened. When the water is drained and the top lid of the salt dissolving tank is opened to replenish the salt, the water does not overflow from the upper opening and does not pollute the surroundings.

According to the sixth aspect of the present invention, in addition to the effect of the first aspect of the present invention, in the bacteriostatic operation by the bacteriostatic operation means, the saline solution in the salt dissolving tank is supplied to the electrolytic cell. A display that indicates that the solution is being supplied allows the user to immediately understand that the saline solution is being supplied to the electrolytic cell during the sterilization operation, and gives the user a sense of security. It is.

According to the seventh aspect of the present invention, in addition to the effect of the first aspect, when the operation is stopped during the electrolysis, the bathtub water is supplied from the first branch to operate. There is a means to push out the liquid in the electrolytic cell from the electrolytic cell to the bypass channel before stopping the operation, so even if the operation is stopped during the electrolysis, the liquid in the electrolytic cell can be removed. It will be pushed out from the electrolytic cell to the bypass flow path and discharged, and when the operation is restarted, even if saline is supplied again from the salt dissolving tank to the electrolytic cell, the electrolytic solution in the electrolytic cell will have a high concentration of saline or electrolytic solution. It does not become water and can prevent the electrolysis control element from being destroyed due to overcurrent, and prevent the chlorine concentration from becoming higher than the target value.

According to the invention of claim 8, in addition to the effect of the invention of claim 1, in addition to the effect of the mode in which the chlorine generated in the electrolytic cell is sent to the bath through the filtration tank and started. Because a display unit that displays the supply of chlorine for a fixed time is provided,
The user can know that the free chlorine concentration is temporarily high.

According to the ninth aspect of the present invention, in addition to the effects of the first or third aspect, when water is supplied from the second branch to the salt dissolving tank, a pump is initially provided. Is performed several times, and then a means is provided for controlling the pump to operate for the time set by the timer so that water is supplied from the second branch to the salt dissolving tank. When supplying a large amount of saline from the salt dissolving tank to the electrolytic tank when supplying water from the salt dissolving tank to the electrolytic tank after supplementing the salt into the tank, when a liquid is contained in the electrolytic tank (for example, In the event of a power outage, when the power is turned on and the initial operation is performed, the current flowing through the electrode is controlled to stop the pump when the current value flowing through the electrode exceeds a certain value. At this time, stop the pump when the pump is jogging As a result, water supply from the salt dissolving tank to the electrolytic cell side does not continue due to inertia even after the pump is stopped, such as when the pump is stopped during continuous operation of the pump. When water is supplied from the salt dissolving tank to the electrolytic tank at the time of switch-on and after replenishing salt to the salt dissolving tank
It can prevent a large amount of salt solution from entering the electrolytic cell from the salt dissolving tank, further preventing wasteful consumption of salt, and destroying electronic components due to overcurrent caused by high concentration saline in the electrolytic cell. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic piping diagram of a bathtub water purification device of the present invention.

FIG. 2 is a front view of the same operation panel.

FIG. 3 is a control block diagram of the above.

FIG. 4 is a flowchart showing a daily operation of the bathtub water purification device.

FIG. 5 is a flowchart of an operation in a care and display processing mode according to the embodiment.

FIG. 6 is a flowchart of an operation in a filter cleaning mode according to the embodiment.

FIG. 7 is a flowchart showing an operation of an electrolytic cell water supply operation mode → a saline solution supply operation mode → an electrolysis operation mode in the sterilization mode operation of the embodiment.

FIG. 8 is a flowchart showing an operation in a chlorine water supply operation mode in the bacteriostatic mode operation.

FIG. 9 is a flowchart showing an operation of initializing the electrolytic cell at the time of salt replenishment according to the embodiment.

FIG. 10 is a flowchart showing the operation of the electrolytic cell initial operation when the operation is started at the beginning of installation of the above bathtub water purification device, when the operation is restarted at the time of a power failure, or after the power switch is turned off.

[Description of Symbols] A Bathtub Water Purification Device B Chlorine Generator 1 Bathtub 2 Pump 3 Bypass Channel 4 Filter 5 Filtration Tank 6 Circulation Channel 9 Washing Circulation Channel 11 Drainage Channel 24 Branch Channel 26a First Branch Channel 26b Second Fork 27 Electrolysis tank 28 Salt dissolution tank 32 Filter cleaning means 41 Salt replenishment display

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁷ Identification code FI C02F 1/50 531 C02F 1/50 560F 560 560Z B01D 35/02 J (72) Inventor Tsutomu Amaki 1048 Okadoma, Kadoma-shi, Osaka No. Matsushita Electric Works Co., Ltd. (72) Inventor Keiichiro Kato 207, Nagoya Matsushita Electric Works, Nagoya Matsushita Electric Works Co., Ltd. Kaihei 8-281270 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47K 3/00 B01D 35/027 C02F 1/46 C02F 1/50

Claims (9)

(57) [Claims] 1. A bypass flow path that branches from the downstream side of a pump is provided in a circulation flow path for sucking and circulating bath water from a bath by a pump and returning the bath water to the bath again. Providing a filtration tank equipped with a filter for filtration, the primary side of the filter of the filtration tank and the upstream side of the pump of the circulation flow path are communicated with the cleaning circulation water channel,
A bath tub water purification device in which a drainage channel is connected to a washing circulation channel, a branch channel is branched from a circulation channel or a bypass channel, and a chlorine generation device is provided in a branch channel whose end communicates with the bypass channel on the upstream side of the filtration tank. The chlorine generator comprises a salt dissolving tank for dissolving salt, and an electrolytic tank for electrolyzing the salt solution sent from the salt dissolving tank to generate chlorine, and the first half of the branch flow path. An intermediate part between the first part and the latter part is branched into a first branch and a second branch via a valve, an electrolytic cell is connected to the first branch, and a salt dissolving tank is provided in the middle of the second branch. And the downstream end of the second branch passage is connected to the electrolytic bath, the electrolytic bath and the bypass flow passage are communicated by the latter half of the branch passage, and bath water passes through the circulation flow passage and the bypass flow passage. Purification operation means that circulates and purifies the water, and the bath tub water is pumped → bypass channel → filtration tank filter Filter washing means to wash the filter by flowing through the path from the primary side of the filter → circulating water channel for cleaning → pump, and then discharge the drained water after washing from the drainage channel to the outside, and salt from the salt dissolving tank to the electrolytic tank. Water supply → electrolysis in the electrolytic cell → sterilization operation means for sending chlorine generated in the electrolytic cell to the bath through the filtration tank, and when the power switch is turned on and after replenishing the salt into the salt dissolving tank, salt is supplied from the second branch. A bathtub water purifier comprising a means for supplying water to a dissolution tank. 2. When the power switch is turned on and after replenishing the salt in the salt dissolving tank and before supplying water to the electrolytic tank via the salt dissolving tank, water is directly supplied from the first branch to the electrolytic tank. 2. The bathtub water purification apparatus according to claim 1, further comprising means for supplying water to the electrolytic cell through the salt dissolving tank, and then directly supplying water from the first branch to the electrolytic cell again. 3. When the power is turned on and after the salt dissolution tank is replenished with salt, water is supplied to the electrode of the electrolysis tank when water is supplied from the second branch to the salt dissolution tank. The bathtub water purifier according to claim 1, further comprising means for stopping water supply from the branch road. 4. Before the water is supplied to the electrolytic cell via the salt dissolving tank when the power switch is turned on, water is supplied directly from the first branch to the electrolytic cell, and further, the electrolytic cell is supplied from the second branch via the salt dissolving tank. After the water is supplied to the electrolytic cell again directly from the first branch,
Thereafter, when the first purification operation is performed by the purification operation means, aging processing means for supplying an electric current to the electrode and performing an aging process at the beginning of the first purification operation is provided, and the polarity during the aging process is reversed by the aging processing means. 2. The bathtub water purification device according to claim 1, further comprising means for stopping the detection of the electrolytic current. 5. A salt replenishment display section for displaying that salt replenishment is required when the salt in the salt dissolving tank is reduced, and branching when the operation switch is turned off during the display by the salt replenishment display section. The bathtub water purification apparatus according to claim 1, further comprising means for operating a valve so that the first half of the flow path and the second branch path communicate with each other. 6. The bathtub according to claim 1, further comprising a display unit for displaying that the saline solution in the salt dissolving tank is being supplied to the electrolytic cell in the sterilization operation by the sterilization operation means. Water purification device. 7. When the operation is stopped during the electrolysis, the bath water is supplied from the first branch to supply the liquid contained in the electrolytic bath to the bypass flow passage before the operation is stopped. 2. A method according to claim 1, further comprising the step of:
The bathtub water purification device according to the above. 8. The bathtub water according to claim 1, further comprising a display unit for displaying the supply of chlorine for a certain period of time after the start of a mode in which chlorine generated in the electrolytic cell is sent to the bathtub through the filtration tank. Purification device. 9. When water is supplied from the second branch to the salt dissolving tank, the pump is first moved several times, and then the pump is operated for a time set by a timer to dissolve salt from the second branch. 4. The bathtub water purification device according to claim 1, further comprising means for controlling water supply to the bathtub.