JP3359660B2 - Backwashing method for continuous electrolytic water regulator and backwashing mechanism for implementing the method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for backwashing a continuous electrolytic water regulator for electrolyzing water to produce alkaline water and acidic water, and a backwashing mechanism for carrying out the method.

[0002]

2. Description of the Related Art A continuous electrolysis water conditioning apparatus that supplies raw water from one side of an electrolysis tank and discharges alkaline water and acid water electrolyzed in the electrolysis tank separately from a pair of drainage pipes is used for drinking alkaline water or cosmetics. It is used to produce sterilized acidic water. This type of electrolytic water regulator performs so-called reverse cleaning by reversing the polarity of the voltage applied to the electrodes in order to reduce the electrolytic efficiency due to precipitation of calcium and the like in the cathode chamber of the electrolytic cell that produces alkaline water. There is something like that. And conventionally,
Backwashing was performed while passing raw water through the electrolytic cell.

[0003]

As described above, the conventional apparatus in which backwashing is performed while passing raw water through the electrolytic cell is as follows.
A large amount of water was used during backwashing, which was uneconomical.

An object of the present invention is to conserve water in the reverse current washing, sterilizing effect of electrolytic cell obtained, further
In addition, continuous backwashing and flushing
It is an object of the present invention to provide a reverse-current cleaning method that can perform the following.

[0005] A second object of the present invention is to provide a continuous electrolytic water conditioning apparatus provided with a reverse-current cleaning mechanism for performing the above method.

[0006]

Means for Solving the Problems In order to achieve the first object, the reverse electric power cleaning method according to the present invention comprises supplying raw water from one side of an electrolytic cell, and mixing the alkaline water electrolytically prepared in the electrolytic cell with alkaline water. In the method for cleaning a continuous electrolysis water conditioning device that discharges acidic water separately from a pair of drainage pipes, the flow of water in the electrolysis tank is stopped and the voltage of the polarity opposite to that at the time of electrolysis water conditioning is applied to the electrodes of the electrolysis tank. Is applied to perform backwashing with the retained water in the electrolytic cell, and then backwashing water and water washing while passing water through the electrolytic bath.
Water is continuously discharged to the drain through the pair of drain pipes .

In order to achieve the second object, the reverse cleaning mechanism of the present invention is characterized in that raw water is introduced from one side of an electrolytic cell, and alkaline water and acidic water generated by electrolysis are supplied to the other side of the electrolytic cell. Is installed in the water supply / drain circuit of the electrolytic water leveling device in a continuous electrolytic water leveling device that discharges each through a pair of drainage pipes and reverses the voltage applied to the electrode of the electrolytic cell to perform reverse voltage cleaning. And an electric valve for controlling the opening and closing of the flow of water through the electrolytic cell, and an electric valve for switching from the pair of drain pipes.
A reverse current washing water draining circuit which communicates to the drain through the blanking, closes the electric valve to control the water flow of the electrolytic cell by the reverse electrostatic cleaning start signal, the reverse current washing water draining circuit by reverse current washing stop signal An automatic control unit for opening the electric valve to the drain side is provided.

[0008]

The polarity of the applied voltage is reversed while the flow of water through the electrolytic cell is stopped, so that the inside of the electrolytic cell is backwashed only with the retained water. In addition, since the reverse electric cleaning is performed only with the retained water in the electrolytic cell, the temperature in the electrolytic cell rises to 50 ° C. to 60 ° C., and this is continued for several minutes to several tens of minutes to sterilize the electrolytic cell. .

In the backwashing mechanism of the present invention, the flow of water in the electrolytic cell is stopped by an input of a backwash switch or a backflow start signal from an electrolytic integrating circuit or the like, and the backwash is automatically performed only by the retained water. Switch to. When the backwashing is completed, the remaining washing water in the electrolytic cell automatically flows to the drain, and the washing water is discharged. Further, when a backwashing drainage circuit is provided from a pair of drainage lines via a switching motorized valve, the electrolytic tank is washed after the backwashing, and the backwashing water and the washing water are continuously connected to the drain. Drained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the cleaning method of the present invention, when cleaning the electrolytic water conditioning apparatus, first, the water circuit of the electrolytic water conditioning apparatus is closed, the flow of water in the electrolytic cell is stopped, and the electrode of the electrolytic cell is electrolyzed. Apply a voltage of the opposite polarity to that during water preparation. As a result, the electrolytic cell is subjected to back-current cleaning only with the retained water. After performing the reverse voltage cleaning for a predetermined time, the remaining cleaning water is discharged to the drain so that the cleaning water is not discharged to the intake port of the alkaline water or the acidic water.
In this case, as a means for discharging the accumulated washing water to the drain, there are a method of discharging only the accumulated washing water to the drain while the water supply of the electrolytic water conditioning apparatus is stopped, and a method of discharging the accumulated washing water to the drain while supplying water to the electrolytic tank, There is a method of continuously discharging water and the subsequent washing water to the drain, and the method of the present invention includes both.

Next, an embodiment of a reverse electric cleaning mechanism for carrying out the method of the present invention will be described with reference to the drawings. Figure 1
The embodiment of FIG. 2 shows an embodiment in which the flow of the electrolytic cell is stopped, the electrolytic cell is subjected to reverse electric cleaning with the retained water, and then the retained cleaning water is discharged to the drain. Is the water pipe 2
The raw water is supplied to one side of the electrolytic cell 3 from the apparatus, and the alkaline water and the acidic water generated in the electrolytic cell 3 are supplied to a pair of drain pipes 4.
5 is discharged separately.

FIG. 1 and FIG. 2 each show an embodiment of an apparatus using alkaline water, so that an alkaline water drainage line is provided.
In addition to providing a water intake faucet 6 at the tip of the tube 4 , the flow of water in the pipeline 4 is detected when the faucet 6 is opened in the alkaline water drainage line 4 to control ON and OFF of the electrolytic electric circuit of the electrolytic cell 3. Detection switch 7 such as flow switch and pressure switch
Is provided.

Further, the acidic water discharge water lines in the embodiment of FIG. 1 5
The electromagnetic valve 8 to close the acidic water discharge water lines 5 in conjunction with this when closing the alkaline water faucet 6 provided on the pair of drain line 4, 5 are both closed as when stopping the intake of alkaline water It has become.

As means for stopping the flow of the acidic water drainage pipe 5 when the alkaline water tap 6 is closed, an independent solenoid valve 8 such as a solenoid valve as shown in FIG. 1 may be used, but as shown in FIG. To
A double flow switch 9 is used in which flow switches 7, 7 and a valve 8 'that opens and closes another flow path following the operation of the flow switch 7 are incorporated in upper and lower stages. While laying pipe 4,
A configuration in which a lower opening / closing valve 8 ′ is disposed in the acidic water drainage pipe 5 may be employed. The double flow switch valve is known from JP-A-63-266281.

The continuous electrolytic water conditioning apparatus 1 is used to remove calcium deposited in the cathode chamber of the electrolytic cell 3 during electrolytic water conditioning.
Reverse polarity cleaning is performed by reversing the polarity of the voltage applied to the negative and positive electrodes.

In the continuous electrolysis water conditioning apparatus having the above-described structure, in the embodiment shown in FIGS. 1 and 2, the water supply pipe 2 is provided with an electromagnetic valve 10 which is closed by a start signal of backwashing.
Wash water drain circuit 12 communicating from electrolytic cell 3 to drain 11
The drain circuit 12 is provided with an electromagnetic valve 13 that is opened by a backwash stop signal.

In the embodiment shown in FIGS. 1 and 2, the electric valves 14a, 1 which are closed to the pair of drain pipes 4, 5 only at the time of backwashing.
4b is provided. The valves 14a and 14b have a function of preventing the backwash water from mixing with the electrolyzed water used, but are not essential in this embodiment.

In the embodiment shown in FIGS. 1 and 2, the flow of water through the electrolytic cell 3 is automatically stopped in conjunction with the switching of the voltage polarity of the reverse voltage cleaning, and the reverse voltage cleaning is performed for a predetermined time only with the water retained in the electrolytic cell. In addition, an automatic control unit A for automatically draining the back-current cleaning water to the drain 11 when the set back-power cleaning time has elapsed is provided. FIG. 3 and FIG. 4 are electric circuit block diagrams of the electrolytic water conditioning apparatus including the automatic control unit. FIG.
FIG. 4 corresponds to the embodiment of FIG.

3 and 4, the solenoid valves 10, 13
First, when the faucet 6 is closed during the electrolysis water preparation, a signal from the flow switch 7 causes the contact 7a to be closed.
Are switched to the states shown in FIGS. 2 and 4, the reverse power circuit 16 conducts on condition that the electrolytic integration circuit 15 has reached a predetermined value, and the polarity of the voltage applied to the electrodes is reversed (the figures are shown). At the same time, the solenoid valve 10 in parallel with the reverse power circuit 16 is energized to stop the water supply from the water supply pipe 2. Therefore, the inside of the electrolytic cell 3 is subjected to reverse electric cleaning only with the staying water in the water stop state.

When the set backwashing time is reached, the backwash timer 17 is energized to open the normally closed relay 17a of the (electromagnetic valve 10) of the backwash circuit 16, thereby completing the backwash and completing the backwash. Relay normally open contact 17b, 1 of reverse power timer 17
The conduction of 7 c causes the solenoid valve 13 of the backwash water drain circuit 12 to be energized to open the drain circuit 12, and the backwash water is drained to the drain 11. When the set drainage time elapses, the timer circuit 18 is energized, and the integrating circuit 15 is reset.
Close. The electric valves 14a and 14b of the drainage lines 4 and 5 of the alkaline water and the acidic water are closed during the backwashing and the drainage time of the cleaning water, and otherwise open to the alkaline water faucet 6 and the acidic water outlet side. I have.

Next, the embodiment shown in FIGS. 5 and 6 will be described. This embodiment is the same as the embodiments of FIGS. 1 and 2 in that the flow of water through the electrolytic cell 3 is stopped by the solenoid valve 10 during backwashing, and the backwash is performed with retained water. The difference is that the raw water is later passed through the electrolytic cell 3 to wash and wash, and the reverse washing and the wash water are continuously drained to the drain 11.

For this reason, in the embodiment of FIGS. 5 and 6, the backwash water drain circuit 12 and the solenoid valve 1 of the embodiment of FIGS.
Instead of 3, the drain circuits 19a and 19b leading from the alkaline water drain pipe 5 to the drain 11 are branched, and the branch drain circuits 19a and 19b are connected to the electric valves 20a for switching the flow paths.
20b is provided.

These electric valves 20a and 20b open toward the drain 11 only during backwashing, during backwashing drainage and during flushing drainage, and otherwise open toward the alkaline water faucet 6 side and the acidic water outlet side. It has become.

Thus, in the embodiment of FIGS. 5 and 6, the solenoid valve 10 of the water supply pipe 2 is closed by the reverse signal,
The electric valves 20a and 20b are opened to the drain 11 side, thereby performing the backwash with the water retained in the electrolytic cell 3 and, when the set backwash time elapses, the solenoid valve 10 of the water supply pipe 2 is opened. By passing the water through the electrolytic cell 3, the electrolytic cell 3 is washed with water, and the reverse electric washing and the washing water are drained to the drain 11 through the electric valves 20a and 20b and the branch drain circuits 19a and 19b. It has become. When drainage of the cleaning water to the drain 11 is completed, the electric valve 2
Reference numerals 0a and 20b open to the alkaline water faucet 6 side and the acidic water outlet side, respectively, so that they can cope with the next electrolytic water preparation.

In the embodiment shown in FIG. 5, since the electromagnetic valve 8 of the acidic water drain pipe 5 is independent of the flow switch valve 7 of the alkaline water drain pipe 4, the electromagnetic valve 8 is at least used for draining the washing water. And it is designed to open during electrolyzing water.

FIG. 7 is a block diagram of an electric circuit for automatically controlling the embodiment of FIG. 5 as described above. Although the electric circuit block diagram of the embodiment of FIG. 6 is not shown, it is the same as the circuit diagram of FIG. 7 except that the circuit of the solenoid valve 8 is omitted.

The operation of the main part of the embodiment of FIG. 4 will be described with reference to FIG. When the reverse power circuit 16 conducts and the polarity to the electrodes is reversed, the solenoid valve 10 in parallel with the reverse power circuit 16 is energized, and the water supply pipe 2 is closed. Therefore, the inside of the electrolytic cell 3 is subjected to backwashing with only the retained water.

When the set reverse power cleaning time has been reached, the reverse power timer 1
7 is energized to open the normally closed contact 17a of the reverse power circuit 16 and the circuit of the solenoid valve 10, and to open the normally open contact 17 of the relay.
Close a and 17b. As a result, the reverse power circuit is turned off, the reverse power cleaning is completed, the solenoid valves 10 and 8 are opened, and the raw water flows from the water supply pipe 2 to the electrolytic tank 3. At this time, since the electric valves 20a and 20b are open to the drain 11 side, the reverse cleaning water is drained to the drain, and the electrolytic cell 3 is rinsed with the subsequently supplied raw water. Drained to

When the drainage of the washing water reaches the set value of the timer circuit 21, the normally closed contact 21a of the solenoid valve 8 opens, and the solenoid valve 8 is closed. At the same time, the electric valves 20a, 2
A timer circuit 22 for switching 0b to the alkaline water faucet 6 and the acidic water outlet side is energized. The relay contacts 22a of the timer circuit 22 return the electric valves 20a and 20b to the original position, and the alkaline water faucet 6 side and the acidic water faucet 6 Open to the water outlet side.

[0030] Although the embodiments of the figures all illustrate the present invention by exemplifying a continuous electrolytic water conditioning apparatus for the purpose of producing alkaline water, the present invention uses acidic water for beauty, bath water and the like. It goes without saying that the present invention can be similarly used for the electrolytic water conditioning apparatus to be produced. In this case, a flow switch valve 7 and a faucet 6 are provided in the acidic water discharge pipe 5, and a solenoid valve 8 or a lower opening / closing valve 8 ′ of the two-stage flow switch valve 9 is provided in the alkaline water discharge pipe 4.

[0031]

According to the present invention, the water supply to the electrolytic cell is stopped during the backwashing, and the backwashing is performed only with the retained water, so that the water consumption during the washing is small, and the water saving effect can be obtained . Stagnant water
Backwashing by water and water washing by passing water continuously
It is.

Further, since the temperature of the electrolytic cell rises due to the backwashing of the retained water, the temperature of the water in the electrolyzer during the backwash is reduced by 5 ° C.
By controlling the temperature to about 0 ° C. to 60 ° C., sterilization in the electrolytic cell can be performed, and there is an effect of two birds per stone.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an electrolytic water conditioning apparatus showing one embodiment of the present invention;

FIG. 2 is a diagram corresponding to FIG. 1 according to another embodiment of the present invention,

FIG. 3 is an electric circuit diagram of a control unit of the embodiment in FIG. 1;

FIG. 4 is an electric circuit diagram of a control unit of the embodiment in FIG. 2;

FIG. 5 is a diagram corresponding to FIG. 1, showing another embodiment of the present invention;

FIG. 6 is a diagram corresponding to FIG. 2 of another embodiment according to the present invention;

FIG. 7 is an electric circuit diagram of a control unit of the embodiment in FIG. 5,

[Explanation of symbols]

2 ... water supply pipe, 3 ... electrolysis tank, 4,5 ... alkaline water drainage pipe, 5 ... acid water drainage pipe, 6 ... faucet, 7 ... flow switch, 8 ... solenoid valve, 9 ... double flow switch, 10 ... Solenoid valve, 11: drain, 12: washing water drain circuit, 13: solenoid valve, 14a, 14b: electric valve, 15: electrolytic integration circuit, 16: reverse electric circuit, 1
7: Reverse transmission timer, 18, 22: Timer circuit, 19
a. 19b: Branch drainage circuit, 20a, 20b: Electric valve.

Claims (2)

(57) [Claims] A method for cleaning a continuous electrolytic water leveling apparatus, wherein raw water is supplied from one side of an electrolytic cell, and alkaline water and acidic water electrolytically prepared in the electrolytic cell are separately discharged from a pair of drain pipes. By stopping the flow of water in the tank and applying a voltage of the opposite polarity to that of the electrolyzed water to the electrodes of the electrolyzed tank, backwashing is performed with the retained water in the electrolyzed tank. Through
The pair of drainage water while washing with reverse electricity and water
Backwashing method for continuous electrolytic water conditioning apparatus characterized by continuously discharging to drain through pipe 2. Raw water is introduced from one side of the electrolytic cell, and alkaline water and acidic water produced by electrolysis are separately discharged from the other side of the electrolytic cell through a pair of drain pipes, and applied to the electrodes of the electrolytic cell. Water supply circuit of the electrolytic water conditioner in a continuous electrolytic water conditioner that reverses the voltage
Alternatively, an electric valve installed in the drain circuit to control the opening and closing of the water flow in the electrolytic cell, a counter-current cleaning water drain circuit communicating from the pair of drain pipes to the drain via a switching electric valve, and starting the reverse-electric cleaning. closing the electric valve to control the water flow of the electrolytic cell Ji by a signal, a water flow of the electrolytic cell by the reverse electric washing stop signal
Is opened the electric valve to control, reverse current cleaning mechanism of a continuous electrolytic water conditioner apparatus characterized in that it comprises an automatic control unit to open the electric valve of the reverse current washing water draining circuit the drain side