JP2000157808A - Bathtub water purifying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the optimum chlorine generating quantity for bacteriostasis corresponding to the number of users or contamination different at every home. SOLUTION: This bathtub water purifying apparatus A is constituted so that the water of a bathtub is circulated while sucked by a pump 2 to be purified in a filter tank 5 to be again returned to the bathtub. A chlorine generator B is provided on the upstream side of the filter device of this bathtub water purifying apparatus. A chlorine generating quantity selecting means changing the chlorine generating quantity in the chlorine generator B to freely select a plurality of stages different in chlorine generating quantity is provided.

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.

[0003] By the way, in each household using the bathtub water purification device, the number of people who use the bathtub or the degree of contamination of the bathtub water are different from each other. However, in the conventional bath water purifier, since the amount of chlorine generated by the chlorine generator is constant, the amount of chlorine generated is too small when used by a large number of people or when the degree of contamination is severe. Sufficient antibacterial effect may not be expected,
When a small number of persons use the apparatus or when the degree of dirt is not so bad, there is a problem that the amount of generated chlorine is too large and chlorine is wasted.

[0004] Further, 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.

Here, water is supplied to the salt dissolving tank immediately after turning on the power switch of the bath water purifier or immediately after replenishing the salt into the salt dissolving tank provided in the chlorine generator, thereby dissolving the salt. In this case, it is conceivable that in this case, the pump is operated immediately after the salt is supplied to the salt dissolving tank provided in the chlorine generator, and the operation time of this pump is controlled to supply water to the salt dissolving tank. In such a case, it is not possible to control so that water is supplied only to the salt dissolving tank, and a large amount of saline flows into the electrolytic tank from the salt dissolving tank, so that the consumption of salt increases. When the power is turned on again after a power failure), when saline flows into the electrolytic cell from the salt dissolving tank, when the electrolytic tank becomes a high-concentration saline and current flows through the electrodes of the electrolytic cell, an overcurrent flows. A new problem arises in that electronic components are destroyed.

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.

There is also a problem that when starting electrolysis in the electrolytic cell, the water temperature in the electrolytic cell is low and the electrolytic efficiency is low.

Further, conventionally, when the saline solution is supplied from the salt dissolving tank to the electrolytic cell during operation, the salt water is supplied by continuous operation of the pump, so that the saline solution is supplied more than necessary. There was a problem.

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 a feeling of anxiety.

Further, conventionally, when the operation is stopped during the electrolysis, electrolyzed water during the electrolysis is accumulated in the electrolytic cell. However, there is a problem that the saline solution is re-injected into the saline solution or the electrolyzed water in the above-mentioned method, so that a high-concentration saline solution or an electrolyzed water is obtained.

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

[0013]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an optimum chlorine generation amount for bacteriostatic control should be set according to the number of users and dirt different from home to home. It is also possible to prevent the water from overflowing and contaminating the surroundings when replenishing the salt, and also to make the concentration of the salt a constant value in a short time in the first sterilization mode operation,
Also, when the electrolytic cell is empty, a large amount of salt solution flows from the salt dissolving tank into the empty electrolytic cell to consume a large amount of salt, or an overcurrent occurs when chlorine is generated by electrolyzing high-concentration saline solution. It prevents the electronic components from breaking due to the flow, and also prevents the malfunction even if the inrush current flows by inverting the polarity during the aging process, and can also increase the electrolytic efficiency, , Can prevent the salt solution from being supplied more than necessary when supplying the salt solution from the salt dissolving tank to the electrolytic cell,
In addition, it informs the user that the saline solution is being supplied to the electrolytic cell, and there is no danger of giving the user an uneasy feeling even if the sound is different from the normal circulation operation, and the operation is stopped during the electrolysis. There is no danger of becoming high concentration saline or electrolyzed water when the operation is resumed after that, and furthermore, the free chlorine concentration is temporarily increased in the bathtub water by flowing chlorine water into the bathtub through the filtration tank. It is an object of the present invention to provide a bathtub water purification device capable of notifying a user of the presence of the water.

[0014]

In order to solve the above-mentioned problems, a bathtub water purifying apparatus according to the present invention suctions and circulates bathwater in a bathtub by a pump 2, purifies it in a filter tank 5, and returns it to the bathtub again. A bath tub water purifier A, which is provided with a chlorine generator B upstream of the filtration device of the bath tub water purifier A, and changes the amount of chlorine generated in the chlorine generator B to produce different amounts. It is characterized in that it is provided with a chlorine generation amount selection means capable of selecting a plurality of stages. With such a configuration, it is possible to control the bacterium to an optimum chlorine generation amount by the chlorine generation selection means in accordance with the number of users and the dirt condition that differ for each household.

A circulation channel 6 for sucking and circulating bath water in the bath tub by the pump 2 and returning it 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. And an electrolytic cell 2 for electrolyzing the salt solution sent from the salt dissolving tank 28 to generate chlorine.
7, the intermediate portion between the first half and the second half of the branch flow path is connected via a valve to the first branch path 26a and the second branch path 2a.
6b, an electrolytic cell 27 is connected to the first branch 26a, a salt dissolving tank 28 is arranged in the middle of the second branch 26b, and the downstream end of the second branch 26b is connected to the electrolytic tank 27. A purifying operation means for connecting and connecting the electrolytic cell 27 and the bypass flow path 3 through the latter half of the branch path 24 and circulating and purifying bath water through the circulation flow path 6 and the bypass flow path 3; Water is pump 2 → bypass channel 3 → filter 4 of filtration tank 5
A filter cleaning means 32 for cleaning the filter 4 by flowing through the path of the primary side → circulating water channel 9 for cleaning → pump 2, and then draining the drained water after cleaning from the drainage channel 11 to the outside.
And supply of saline from the salt dissolving tank 28 to the electrolytic tank 27 → electrolysis in the electrolytic tank 27 → sterilization operation means for sending chlorine generated in the electrolytic tank 27 to the bath tub through the filtration tank 5. It is preferable to provide a means for supplying water to the salt dissolving tank 28 from the second branch passage 26b at the time and after replenishing the salt into the salt dissolving tank 28. With such a configuration, a purifying operation, a filter cleaning operation, and a bacteriostatic operation can be performed.
Even if 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 replenished, the salt dissolving tank 28 is switched from the second branch passage 26b when the power switch is turned ON and after the salt dissolving tank 28 is refilled. To dissolve 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 is turned off.
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.

In the bacteriostatic operation by the bacteriostatic operation means, prior to supplying bath water from the second branch passage 26b to the salt dissolving tank 28 and supplying the salt solution in the salt dissolving tank 28 to the electrolytic tank 27, It is preferable to provide a means for supplying bath water having a certain temperature or higher from the first branch passage 26a to the electrolytic cell 27. With such a configuration, when electrolyzing in the electrolytic bath 27, the saline solution in the electrolytic bath 27 becomes almost the same high temperature as the bath water in the bath bath 1, and the electrolytic efficiency can be increased.

In the bacteriostatic operation by the bacteriostatic operation means, when the bath water is supplied from the second branch passage 26b to the salt dissolving tank 28 to supply the salt solution in the salt dissolving tank 28 to the electrolytic tank 27, a pump 2 is used. It is preferable to provide a means for supplying a saline solution to the electrolytic cell 27 by the instability. With such a configuration, the salt is supplied to the electrolytic cell 27 little by little, and the minimum amount of salt with respect to the required chlorine generation amount can be supplied.

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 and the liquid contained in the electrolytic bath 27 before the operation is stopped is transferred from the electrolytic bath 27 to the bypass passage 3. 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.

It is preferable to provide a display for indicating the supply of chlorine for a certain period of time after the mode in which the chlorine generated in the electrolytic cell 27 is sent to the bath 1 through the filter 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.

[0026]

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 channel 6 is connected to the water discharging section 2 from the water absorbing section 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 in the filtration tank 5 and the upstream side of the pump 2 in 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 on the downstream side of the branch of the circulation passage 6 with the bypass passage 3 and on the upstream side of the first valve 7. The downstream end of the branch passage 24 has a bypass. The passage 3 communicates between the third valve 10 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 means 30 controls the pump 2, the heater 21, and the valves (the first valve 7, the second valve 8, the third valve) in the bath water purifying apparatus A having the above configuration. 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 bath water purifier 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 purification operation means 31, the fourth valve 12, the fifth valve 25 are closed, and the heater 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 extraordinary cleaning of the filter, the cleaning and 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, the fourth valve 12 is opened by the filter cleaning means 32, and the cleaning circulation water passage 9 is opened. By closing the drainage channel 11, turning off the heater 21 and turning on the pump 2 for high-speed operation, the bathtub water is pumped 2 → the bypass channel 3 → the primary side of the filter 4 of the filtration tank 5 → the circulation channel 9 for washing. → Pump 2
The filter 4 is cleaned by removing dirt, bacteria and the like adhering to the primary side of the filter 4 such as a microfiltration filter while circulating in the closed loop. 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 washing mode using the bathtub water, the display unit 48 indicates that the filter is being washed. For example, the display unit 48 indicates "CL" (abbreviation for cleaning).

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 cleaning → 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 discharged, 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 dissolving tank 28 is open.
The second branch path 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 the rinsing, and the dirt and bacteria separated by the washing of the filter 4 are removed from the drain path 11. 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-described "filter circulation cleaning mode using the detergent" is performed while the cleaning motor 51 is rotated. 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 washing mode, when the necessity of washing of the circulation channel 6 is displayed on the circulation channel cleaning display section 16 (for example, it is displayed by blinking of the filter detergent cleaning display section 13). ), 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 tank water supply operation mode 102 → salt water supply operation mode 103 → electrolysis operation mode 104 → chlorine water supply operation mode 104, as shown in the flowcharts of FIGS. Operation is performed in a simple manner.

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.

Next, 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 jolted down until the constant salt concentration is reached, and the low-speed operation is stopped. The salt solution is supplied from the salt dissolving tank 28 into 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 the 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 danger that the user may feel uneasy because the operation sound is different from that in the normal circulation mode operation. The display during driving is displayed so that the user can understand. Here, since the high-temperature bath water is previously supplied into the electrolytic tank 27 by the electrolytic-water-supplying operation as described above, the salt solution is supplied from the salt dissolving tank 28, and this is mixed with the high-temperature hot water in the electrolytic tank 27. Even if mixed, 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 caused to flow between the electrodes in the electrolytic cell 2 (that is, the electrolysis is turned on) while the saline is being generated 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, and as a result, the operation is restarted. In this case, even if the saline 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 electrolyzed water. Is prevented from being destroyed.

After the 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 flowchart of FIG. 9. When the power switch is turned 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 opened with the cleaning circulation channel 9 open and the drain channel 11 closed. The pump 2 is operated with the first branch 26a connecting the valve 25 to the electrolytic tank 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 through the electrode in the electrolytic cell 27. 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 coasted even after the stop, such as when the pump 2 is stopped when 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. 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 pushed out from the electrolytic cell 27 to make the inside of the electrolytic cell 27 a state of only bath water without mixing 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.

In the above example, the example of the initialization of the electrolytic cell 27 at the time of salt replenishment has been described. 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, 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 depending on the place of use, depending on the number of users and the degree of dirt. Therefore, in the present invention, the amount of chlorine generation can be adjusted in a plurality of stages, and the selection switch 38 is operated in accordance with the number of users and the degree of dirt to determine 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 flow chart showing the operation of the bathtub water purification apparatus 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, the saline solution supply operation → electrolysis operation is performed before the above-mentioned filter regular cleaning, and the chlorine water supply operation is performed after the filter regular cleaning. It is set to be performed. That is, in the flowchart shown in FIG. 4, within one day, the normal circulation mode → (extra filter cleaning mode) → normal circulation mode → bacteriostatic mode (electrolyte tank water supply operation → saline solution supply operation → electrolysis operation operation) → filter Regular cleaning mode → Bacteria control mode (chlorine water supply operation) → Normal circulation mode → (Filter temporary cleaning mode) → Normal circulation mode → Bacteria control mode (Electrolysis tank water supply operation → Salt solution supply operation → Electrolysis operation operation) →
The operation mode is automatically switched in the order of the filter regular cleaning mode → the bacteria control mode (chlorine water supply operation), 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 has clogged to a certain degree 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 predetermined value (1.0 liter / min in the embodiment), the filter 4 is clogged more than a certain value. When the flow rate detected 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. 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 blinks, 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.

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

In the present invention, when it is necessary to perform the above-described cleaning of the filter 4 with a detergent, replacement of the filter 4, and cleaning of the circulation channel 6, 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.

[0063]

According to the first aspect of the present invention, there is provided a bathtub water purifying apparatus wherein the bathtub water in the bathtub is sucked by a pump, circulated, purified in a filter tank, and returned to the bathtub again. A chlorine generating device is provided upstream of the filtering device of the bathtub water purifying device, and a chlorine generating amount selecting means for changing a chlorine generating amount in the chlorine generating device and selecting a plurality of stages different in the generating amount is provided. Since it is provided, it is possible to control bacteria by setting the optimum amount of chlorine generation by the chlorine generation amount selection means according to the number of people and the dirt condition that differ for each household, thereby eliminating wasteful consumption of salt. Thus, salt can be consumed effectively and the bacteria can be reliably controlled even if the number of users is large or the soiling is severe.

According to the second aspect of the present invention, in addition to the effects of the first aspect, the chlorine generator is fed from a salt dissolving tank for dissolving salt and a salt dissolving tank. It comprises an electrolytic cell for electrolyzing a saline solution to generate chlorine. An intermediate portion between the first half and the second half of the branch flow path is connected to a first branch path and a second branch path via a valve. Branching, connecting an electrolytic cell to the first branch, disposing a salt dissolving tank in the middle of the second branch, connecting the downstream end of the second branch to the electrolytic tank, and connecting the electrolytic tank and the bypass flow path. Through the latter half of the branch passage, purifying operation means for purifying the bathtub water by circulating it through the circulation flow path and the bypass flow path, and a bathtub water pump →
A filter washing means for washing the filter by flowing through a path of a bypass passage → the primary side of a filter in a filtration tank → a circulating water passage for washing → a pump, and then discharging drain water after washing to the outside from a drain passage, and salt dissolving. Supply of saline solution from tank to electrolytic tank → electrolysis in electrolytic tank → sterilization operation means to send chlorine generated in electrolytic tank to bathtub through filtration tank, when power switch is on and salt replenishment to salt dissolving tank Since means for supplying water to the salt dissolving tank from the second branch path is provided later, a cleaning operation, a filter washing operation, and a bacteriostatic operation can be performed, and when the power switch is turned on and salt is replenished to the salt dissolving tank. Even if there is no water in the salt dissolving tank later, supply water to the salt dissolving tank from the second branch after the power switch is turned on and after replenishing the salt to the salt dissolving tank, and dissolve the salt beforehand in the sterilization operation. Can be Result, as it can so that the concentration of sodium chloride in a short time during the initial antibacterial mode operation after salt refilling a constant value.

According to the third aspect of the present invention, in addition to the effects of the second aspect of the present invention, when the power switch is turned on and after replenishing the salt in the salt dissolving tank, the electrolytic cell is connected via 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 to the electrolytic cell from the second branch via the salt dissolving tank, and then water is directly supplied from the first branch to the electrolytic cell again. 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. In the state of the above, when the operation is shifted to the normal operation and the sterilization 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 has a high concentration. As a result, an overcurrent flows during electrolysis, There are those which can be prevented from breaking.

According to the fourth aspect of the present invention, in addition to the effect of the second aspect, when the power is turned on and after the salt is replenished to the salt dissolving tank, the salt dissolving tank is moved from the second branch. When the water is supplied to the electrode of the electrolytic cell and the electrolytic current exceeds a certain value, the water supply from the second branch is stopped. When 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 fifth aspect of the present invention, in addition to the effect of the second 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 performed. 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 from the first branch channel again. At the time of operation, aging processing means for performing aging processing by supplying current to the electrode at the beginning of the first purification operation is provided, and when the polarity during the aging processing is reversed by the aging processing means, the 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 sixth aspect of the present invention, in addition to the effect of the second aspect of the present invention, when the amount of salt in the salt dissolving tank decreases, it indicates that supplementation of salt is required. A replenishment display is provided, and means is provided for operating the valve so that the first half of the branch flow path and the second branch are connected when the operation switch is turned off during the 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 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 seventh 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, bath water is supplied from the second branch to the salt dissolving tank. Prior to supplying and supplying the salt solution in the salt dissolving tank to the electrolytic cell, a means for supplying bath water having a certain temperature or higher from the first branch to the electrolytic cell is provided. At this time, the temperature of the saline solution in the electrolytic bath becomes almost the same as the temperature of the bathtub water in the bathtub, and the high-temperature saline solution is electrolyzed, so that the electrolytic efficiency can be increased.

Further, in the invention according to claim 8, in addition to the effect of the invention described in claim 1, in the bacteriostatic operation by the bacteriostatic operation means, the bath water is supplied from the second branch to the salt dissolving tank. When supplying and supplying the salt solution in the salt dissolving tank to the electrolytic tank, a means for supplying the salt solution to the electrolytic tank by inching of the pump is provided, so that the salt is gradually supplied to the electrolytic tank. Thus, the minimum amount of salt can be added to the required amount of generated chlorine, and as a result, the life of the salt in the salt dissolving tank is extended and the salt is not wasted.

According to the ninth 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 is provided so that the user can immediately understand that the saline solution is being supplied to the electrolytic cell during the bacteriostatic operation, giving the user a sense of security. It is.

In the invention according to claim 10,
In addition to the effect of the invention according to claim 1, when the operation is stopped during the electrolysis, the bathtub water is supplied from the first branch to supply the liquid contained in the electrolytic cell until the operation is stopped from the electrolytic cell. Since the means for pushing out to the bypass flow path is provided, even if the operation is stopped during the electrolysis, the liquid contained in the electrolytic tank is pushed out from the electrolytic tank to the bypass flow path and discharged, Even when saline is supplied from the salt dissolving tank to the electrolytic tank again when the operation is resumed, the inside of the electrolytic tank does not become a high concentration of saline or electrolytic water, and the control element for electrolysis becomes excessive. It can prevent destruction due to electric current, and can prevent the chlorine concentration from becoming higher than the target value.

Further, in the invention according to claim 11,
In addition to the effect of the first aspect of the present invention, since a display is provided to display the supply of chlorine for a certain period of time after the mode in which the chlorine generated in the electrolytic cell is sent to the bath through the filtration tank, free chlorine is temporarily provided. The user can know that the concentration is high.

Further, in the twelfth aspect of the present invention,
In addition to the effect of the invention described in claim 4, when water is supplied from the second branch to the salt dissolving tank, the pump is first jogged several times, and then the pump is operated for the time set by the timer. Means is provided to control the water supply from the second branch to the salt dissolving tank, so that when the power is turned on and when water is supplied from the salt dissolving tank to the electrolytic tank after replenishing the salt into the salt dissolving tank, salt dissolving is performed. To prevent a large amount of saline solution from entering the electrolytic cell from the tank, when liquid is contained in the electrolytic cell (for example, in the case of a power failure, when the power is turned on and the initial operation is performed, The pump controls the pump to stop when the current flowing through the electrode (containing the liquid) exceeds a certain value. At this time, the pump stops when the pump is inching. When the pump is stopped during continuous operation As a result, the water supply from the salt dissolving tank to the electrolytic cell side is not continued due to the inertia even after the stop, as a result, when the power switch is turned on and after the salt is replenished to the salt dissolving tank, the salt dissolving tank is switched to the electrolytic cell. When water is supplied to the tank, a large amount of salt solution can be prevented from entering the electrolytic tank from the salt dissolving tank, preventing wasteful consumption of salt even more. It is possible to prevent electronic components from being destroyed by electric current.

[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.

[Explanation of symbols]

 Reference Signs List A Bath water purifier B Chlorine generator 1 Bath tub 2 Pump 3 Bypass flow path 4 Filter 5 Filtration tank 6 Circulation flow path 9 Washing circulation water path 11 Drainage path 24 Branch path 26a First branch path 26b Second branch path 27 Electrolytic tank 28 Salt dissolving tank 32 Filter washing means 41 Salt replenishment display

[Procedure amendment]

[Submission date] June 2, 1999 (1999.6.2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Bathtub water purification device

[Claims]

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 suctioned by a pump, circulated, purified in a filter tank, and returned to the bathtub again, upstream of the filter tank of the bathtub water purifier. A chlorine generator is installed 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. A bath tub water purifier that is circulated for use for a long time without changing bath tub water can suppress the growth of harmful bacteria such as Legionella bacteria.

[0003] By the way, in each household using the bathtub water purification device, the number of people who use the bathtub or the degree of contamination of the bathtub water are different from each other. However, in the conventional bath water purifier, since the amount of chlorine generated by the chlorine generator is constant, the amount of chlorine generated is too small when used by a large number of people or when the degree of contamination is severe. Sufficient antibacterial effect may not be expected,
When a small number of people use the device or when the degree of dirt is not so bad, there is a problem that chlorine is used wastefully because the amount of generated chlorine is too large .

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an optimum chlorine generation amount for bacteriostatic control is set according to the number of users and dirt different from home to home. It is an object of the present invention to provide a bathtub water purification device that can perform the above.

[0005]

According to the present invention, there is provided a bathtub water purifying apparatus according to the present invention, in which bathtub water in a bathtub 1 is sucked and circulated by a pump 2, purified by a filter tank 5, and re-purified in the bathtub 1 again. A bath tub water purifier A, which is provided with a chlorine generator B upstream of the filtration tank 5 of the bath tub water purifier A, and generates chlorine by changing the amount of chlorine generated in the chlorine generator B. It is characterized in that it is provided with a chlorine generation amount selection means capable of selecting a plurality of stages having different amounts. With such a configuration, it is possible to bacteriostatic and chlorine generation amount of optimum by chlorine evolution selecting means corresponds to a different number of employees and dirt state for each household
It is.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. FIG. 1 shows a bathtub water purification device A.
The schematic piping diagram of is shown. The bathtub water purification device A is provided with a circulation channel 6, and the circulation channel 6 has a water absorbing portion 19 at one end and a water discharging portion 20 at the other end.
The spout 20 is immersed in the bathtub water of the bathtub 1. In the embodiment shown in the attached drawings, the water absorption / water discharge block 5
21 is provided with a water absorbing part 19 and a water discharging part 20, and the water absorbing / water discharging 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.

[0007] In the circulation flow path 6, from the water absorption section 19 side to the water discharge section 2
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 passage 9 through the cleaning circulation water passage 9 via the fourth valve 12. Drainage channel 11 is connected.

A branch passage 24 is provided on the downstream side of the branch of the circulation passage 6 with the bypass passage 3 and on the upstream side of the first valve 7. The downstream end of the branch passage 24 has a bypass. The passage 3 communicates between the third valve 10 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) in the bath water purifying apparatus A having the above configuration. 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 clogged state of a certain level or more by the clogged state detection means of the filter 4. There is an extraordinary operation of a filter that is temporarily operated when it is detected.

In each of 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, the display unit 48 displays "CL" (abbreviation for cleaning).

The filter cleaning mode using detergent is
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 cleaning → 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 discharged, 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 dissolving tank 28 is open.
The second branch path 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 the rinsing, and the dirt and bacteria separated by the washing of the filter 4 are removed from the drain path 11. 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-described "filter circulation cleaning mode using the detergent" is performed while the cleaning motor 51 is rotated. 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, it is displayed by blinking of the filter detergent cleaning display section 13). ), Operation switch 4 for circulation channel cleaning
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 104, as shown in the flowcharts of FIGS. Operation is performed in a simple manner. That is, in the bacteriostatic mode operation, first, the first valve 7 and the second valve 8 are opened, the third valve 10 and the fourth valve 12 are closed by the chlorine water supply means 34 as shown in FIG. The heater 21 is heated by operating the pump 2 in a state in which the first branch 26a connecting the fifth valve 25 to the electrolytic cell 27 is open and the second branch 26b communicating the salt dissolving tank 28 is closed. The circulating bath water that has been heated to a high temperature is supplied to the electrolytic cell 27. This is the electrolytic cell water supply operation mode 102.

Next, the first valve 7, the second valve 8, and the third valve 10 are opened by the chlorinated 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 jolted down until the constant salt concentration is reached, and the low-speed operation is stopped. The salt solution is supplied from the salt dissolving tank 28 into 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 the 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 danger that the user may feel uneasy because the operation sound is different from that in the normal circulation mode operation. The display during driving is displayed so that the user can understand. Here, since the high-temperature bath water is previously supplied into the electrolytic tank 27 by the electrolytic-water-supplying operation as described above, the salt solution is supplied from the salt dissolving tank 28, and this is mixed with the high-temperature hot water in the electrolytic tank 27. Even if mixed, 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 caused to flow between the electrodes in the electrolytic cell 2 (that is, the electrolysis is turned on) while the saline is being generated 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, and as a result, the operation is restarted. In this case, even if the saline 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 electrolyzed water. Is prevented from being destroyed.

After the 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 initial operation mode of the electrolytic cell is operated by the operation shown in the flowchart of FIG. 9.
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, the fourth valve 12 is opened with the circulating water passage 9 for cleaning and the drain passage 11 closed, and the fifth valve 12 is closed. The pump 2 is operated with the first branch 26a connecting the valve 25 to the electrolytic tank 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, when a current is supplied to the electrode in the electrolytic cell 27, the power supply immediately exceeds a certain value. Is detected, the pump is stopped upon detecting this, and the 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 coasted even after the stop, such as when the pump 2 is stopped when 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. 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 pushed out from the electrolytic cell 27 to make the inside of the electrolytic cell 27 a state of only bath water without mixing 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.

In the above example, the electrolytic cell 27 is initialized at the time of salt replenishment. 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, the dirt condition of the bathtub water of the bathtub 1 in which the bathtub water purification device A of the present invention is installed differs depending on the place of use, depending on the number of users and the degree of dirt. Therefore, in the present invention, the amount of chlorine generation can be adjusted in a plurality of stages, and the selection switch 38 is operated in accordance with the number of users and the degree of dirt to determine the number of users and the degree of dirt. Adjustment is made so as to obtain the corresponding optimal chlorine generation amount. 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, the saline solution supply operation → electrolysis operation is performed before the above-mentioned filter regular cleaning, and the 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 → (Extra filter cleaning mode) → Normal circulation mode → Bacteria control mode (Electrolysis tank water supply operation → Salt solution supply operation → Electrolysis operation ) → Filter regular cleaning mode → Bacteria control 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 → 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 performed only when the clogging state detecting means of the filter 4 detects that the filter 4 has become clogged at 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 predetermined value (1.0 liter / min in the embodiment), the filter 4 is clogged more than a certain value. When the flow rate detected 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. 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, it is set so that "care and display processing" is performed by the control means after the filter regular cleaning mode ends (before the chlorine water supply operation). "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. 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 blinks, it is displayed that the filter 4 needs to be replaced. When this is displayed, the user turns off the operation switch 36 and turns 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, the 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 cleaning of the circulation flow path. A memory (EEPROM) is provided so that even if a power failure occurs, the count is stored and the timer can be accurately counted.

In the present invention, when it is necessary to perform cleaning such as cleaning of the filter 4 with a detergent, replacement of the filter 4, and cleaning of the circulation channel 6, the maintenance display unit 15 is provided as described above. The lamps of the filter detergent cleaning display section 13, the circulation flow path cleaning display section 16 and the filter replacement display section 14 are displayed by flashing. After a lapse (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), the operation is 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.

[0040]

According to the first aspect of the present invention, there is provided a bathtub water purifying apparatus wherein the bathtub water in the bathtub is sucked by a pump, circulated, purified in a filter tank, and returned to the bathtub again. In addition, a chlorine generator is provided upstream of the filtration tank of the bathtub water purification device, and a chlorine generation amount selecting means that can select a plurality of stages having different generation amounts by changing the chlorine generation amount in the chlorine generator. Since it is provided, it is possible to control bacteria by setting the optimum amount of chlorine generation by the chlorine generation amount selection means according to the number of people and the dirt condition that differ for each household, thereby eliminating wasteful consumption of salt. Thus, salt can be consumed effectively and the bacteria can be reliably controlled even if the number of users is large or the soiling is severe .

[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.

[Explanation of Signs] A Bathtub water purifier B Chlorine generator 1 Bathtub 2 Pump 5 Filtration tank

[Procedure amendment]

[Submission Date] January 11, 2000 (2000.1.1)
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

In order to solve the above-mentioned problems, a bathtub water purifying apparatus according to the present invention suctions and circulates bathtub water in a bathtub 1 by a pump 2 and purifies it in a filtration tank 5 to purify the bathtub water again. Under the pump 2 in the circulation channel 6 for return to
A bypass flow path 3 branching from the flow side is provided.
In the middle of 3, a filter 4 for filtering bath water is installed.
A filtration tank 5 is provided, and the primary side of the filter of the filtration tank and the circulating flow
The upstream side of the pump 2 of the passage 6 is provided by the circulating water passage 9 for washing.
The drainage channel 11 is connected to the circulation channel 9 for washing,
Branched from the circulation channel 6 or the bypass channel 3 and the tip is
A branch passage communicating upstream of the filtration tank 5 in the ipass flow path 3
A chlorine generator B is provided in the channel 24, and the bath water is supplied to the circulation channel 6.
A purification driver that purifies by circulating through the bypass passage 3
Stage and bathtub water are pump 2 → bypass channel 3 → filtration tank 5
Primary side of filter 4 → Circulating water channel 9 for washing → Pump 2
The filter 4 is washed by flowing along the
Filter cleaning means for discharging to the outside from the drainage channel 11 after
And the chlorine generated by the chlorine generator B through the filtration tank 5
A bacteriostatic operation means for sending to the bathtub 1 ; and a chlorine generation amount selection means for changing a chlorine generation amount in the chlorine generator B to select a plurality of stages having different generation amounts. It is. With such a configuration, the cleaning operation, the filter cleaning operation, and the germicidal operation can be performed.
In addition, in the sterilization operation, the chlorine generation can be controlled to an optimum chlorine generation amount by the chlorine generation selecting means in accordance with the number of users and the dirt condition differing in each household.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0040

[Correction method] Change

[Correction contents]

[0040]

According to the first aspect of the present invention, there is provided a circulating flow path for sucking and circulating bathtub water in a bathtub, circulating the water in the bathtub, purifying the water in the filter tank, and returning the water to the bathtub again.
Provide a bypass flow path that branches from the downstream side of the pump,
A filter for filtering bath water is installed in the middle of the path.
Equipped with a filtration tank, and circulates with the primary side of the filter of the filtration tank
The upstream side of the flow path from the pump is connected by the circulation water channel for cleaning.
And connect the drainage channel to the cleaning circulation channel,
Is branched from the bypass flow path and the tip is
Install a chlorine generator in the branch passage communicating upstream of the tank.
Provided, bath water is circulated through the circulation channel and the bypass channel
The cleaning operation means for purifying and bath water is pump →
Flow path → Primary side of filter in filtration tank → Circulating water channel for washing →
The filter flows through a path called a pump to clean the filter.
A filter cleaning hand that is discharged to the outside from the drain after cleaning
And the chlorine generated by the chlorine generator through the filtration tank
Since it is equipped with a bacteriostatic operation means to send to the tank, purification operation
And filter cleaning operation and sterilization operation can be performed.
Chlorine generation amount selection means is provided to change the chlorine generation amount in the chlorine generation device and select multiple stages with different generation amounts, so that in the sterilization operation , it is possible to respond to different numbers of people and dirt conditions in each household to the optimum chlorine generation amount by chlorine generation amount selection means can be bacteriostatic, this result, by eliminating the wasteful consumption of salt can effectively salt consumption and, or often used persons, Bacteria can be reliably controlled even when the dirt is severe.

Continuation of the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) C02F 1/50 520 C02F 1/50 520L 531 531M 540 540B 550 550B 550D 560 560F 560Z 1/76 1/76 A (72) Inventor Yoshihiro Sakurai 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture (72) Inventor Tsutomu Amagi 1048 Odaka Kadoma Kadoma City, Osaka Prefecture Inside the Matsushita Electric Works Co., Ltd. (72) Keiichiro Kato Kiyosu Nishi-Kasugai-gun, Aichi Prefecture 207, Oban, Ichiba-cho, Nagoya Matsushita Electric Works, Ltd. F term (reference) 4D050 AA10 AB06 BB05 BD04 BD06 BD08 CA10 CA15 4D061 DA07 DB10 EA02 EB14 EB19 ED13 4D064 AA11 BF32 BF39 BF40

Claims (12)

[Claims] 1. A bathtub water purifying apparatus wherein a bathtub water in a bathtub is sucked and circulated by a pump, purified by a filter tank, and returned to the bathtub again, upstream of the filter apparatus of the bathtub water purifier. A bath tub water purifier comprising: a chlorine generator provided on a side thereof; and a chlorine generation amount selecting means for changing a chlorine generation amount in the chlorine generator to select a plurality of stages having different generation amounts. 2. A bypass passage branching from the downstream side of a pump is provided in a circulation passage for sucking and circulating bath water in a bath tub by a pump and returning the bath water to the bath tub 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 circulating water channel for washing,
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. 2. A means for supplying water to a dissolving tank is provided.
The bathtub water purification device according to the above. 3. 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 supplied directly from the first branch to the electrolytic tank. 3. The bathtub water purification apparatus according to claim 2, further comprising means for supplying water to the electrolytic cell through the salt dissolving tank and then directly supplying water to the electrolytic cell again from the first branch. 4. 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. 3. The bathtub water purifier according to claim 2, further comprising means for stopping water supply from the branch road. 5. Before the water is supplied to the electrolytic cell via the salt dissolving tank when the power switch is turned on, the electrolytic cell is supplied directly from the first branch to the electrolytic cell via the salt dissolving tank from the second branch. After the water is supplied to the electrolytic cell again directly from the first branch,
After that, when the first purification operation is performed by the purification operation means, aging processing means for conducting an aging process by supplying power to the electrode at the beginning of the first purification operation is provided, and the polarity at the time of the aging process is reversed by the aging processing means. 3. The bathtub water purifying apparatus according to claim 2, further comprising means for stopping the detection of the electrolytic current. 6. A salt replenishment display section for displaying that salt replenishment is required when the salt in the salt dissolving tank is reduced is provided. When the operation switch is turned off during display by the salt replenishment display section, branching is performed. 3. The bathtub water purifying apparatus according to claim 2, further comprising means for operating a valve so that the first half of the flow path communicates with the second branch path. 7. In a bacteriostatic operation by means of a bacteriostatic operation means, a bath water is supplied from a second branch to a salt dissolving tank to supply a salt solution in the salt dissolving tank to an electrolytic tank. 2. The bath water purifier according to claim 1, further comprising means for supplying bath water having a temperature equal to or higher than a predetermined temperature to the electrolytic bath. 8. In the bacteriostatic operation by the bacteriostatic operation means, when the bath water is supplied to the salt dissolving tank from the second branch and the saline solution in the salt dissolving tank is supplied to the electrolytic tank, the pump is moved by a jolt of the salt. The bathtub water purification apparatus according to claim 1, further comprising means for supplying water to the electrolytic cell. 9. 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. 10. 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 path before the operation is stopped. 2. The bathtub water purification apparatus according to claim 1, further comprising means for providing a bathtub. 11. The bathtub water purifying apparatus according to claim 1, further comprising a display for displaying the supply of chlorine for a certain period of time after a mode in which chlorine generated in the electrolytic cell is sent to the bathtub through the filtration tank. 12. When the water is supplied from the second branch to the salt dissolving tank, the pump is first slightly moved several times, and then the pump is operated for a time set by a timer to dissolve the salt from the second branch. 5. The bathtub water purification apparatus according to claim 4, further comprising means for controlling the supply of water to the tank.