JPH0957265A - Electrolytic water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly detect the abnormality in the concn. of dil. brine in a dil. brine tank and a decrease in the concn. due to water supply. SOLUTION: When the dil. brine is deficient in a dil. brine tank 20, water is replenished to the tank 20 through a water feed pipe 22 and a solenoid valve 23. A decrease in the concn. of the dil. brine in the tank 20 due to the water supply is detected by a concn. sensor 24, and an almost saturated concd. brine is supplied from a concd. brine tank 10. The dil. brine tank 20 is divided by a partition plate 21 into a first room R1 and a second room R2 with the upper parts communicated with each other. The concn. sensor 24 is set in the first room, and the concd. brine and water are supplied to the first room R1. The dil. brine in the second room R2 is supplied to an electrolytic cell 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention stores a predetermined low concentration diluted salt water prepared by mixing concentrated salt water stored in a concentrated salt water tank and water supplied from the outside in a diluted salt water tank. In addition, the present invention relates to an electrolyzed water producing apparatus that supplies the stored diluted salt water to the electrolyzer and electrolyzes the electrolyzed electrolyzed water to take out the electrolyzed electrolyzed water from the electrolyzer.

[0002]

2. Description of the Related Art Conventionally, this type of electrolyzed water producing apparatus stores a large amount of salt and a predetermined amount of water in a concentrated salt water tank and dissolves the salt in water in a substantially saturated state. When the water level inside drops below a prescribed level, water is replenished into the tank from the outside, and when the concentration detected by the concentration sensor in the dilute salt water tank falls below a prescribed low concentration, Concentrated salt water is supplied from the salt water tank to the diluted salt water tank to adjust the concentration of the diluted salt water in the diluted salt water tank to a predetermined low concentration.

[0003]

However, in the above conventional device, the electromagnetic valve constituting the concentrated salt water supply means,
If abnormality occurs in the electric pump etc. and there is concentrated salt water leakage,
Although the concentration of the diluted salt water in the diluted salt water tank becomes higher than a predetermined low concentration, the determination that the concentration of the diluted salt water becomes high is delayed due to the large capacity of the diluted salt water tank. As a result, there is a delay in dealing with the abnormality, homogeneous electrolyzed water is not generated in the electrolytic cell for a long time, or the electrodes in the electrolytic cell are deteriorated. In addition, since the capacity of the diluted salt water tank is large, it is delayed to judge that the concentration of the diluted salt water in the diluted salt water tank has decreased due to water supply from the outside, and homogeneous electrolytic water is generated in the electrolytic cell for a long time. There is also the problem that it is not done.

The present invention has been made in order to address the problem caused by the large capacity of the diluted salt water tank as described above, and its purpose is to promptly increase the concentration of the diluted salt water in the diluted salt water tank abnormally. An object is to provide an electrolyzed water generator capable of coping with the problem. Another object of the present invention is to provide an electrolyzed water production apparatus in which the determination of a decrease in the concentration of dilute salt water due to water supply from the outside is quickly performed and electrolyzed water that is always homogeneous is produced.

[0005]

In order to achieve the above object, the structural feature of the invention according to claim 1 is that the concentration of the dilute salt water detected by the concentration sensor is lower than a predetermined low concentration. Also provided with an abnormality detection means for detecting an abnormal concentration of dilute salt water when the concentration becomes higher than a predetermined concentration.
The diluted salt water tank is divided into a first chamber and a second chamber with the partition plate partially communicating with each other. The concentration sensor is housed in the first chamber, and the concentrated salt water is replenished by the concentrated salt water replenishing means. It was decided to do it in the first room.

According to this, even when the concentration of the diluted salt water in the diluted salt water tank becomes abnormally high due to leakage of the salt water from the concentrated salt water supply means, the capacity of the first chamber to which the concentrated salt water is supplied can be reduced. The concentration of the diluted salt water in the first chamber rises rapidly, and the concentration sensor detects the rapidly rising concentration of the diluted salt water. Therefore, the abnormality detecting means can quickly detect the abnormal concentration of the diluted salt water, and the user can quickly cope with the abnormal condition.

Further, the structural feature of the invention according to claim 2 is that in the electrolyzed water generating apparatus according to claim 1,
The reason is that the dilute salt water is taken out from the dilute salt water tank by the dilute salt water supply means from the second chamber.

According to this, as described above, even while the concentration of the diluted salt water in the first chamber is rapidly increasing and before the abnormality detecting means detects the abnormal concentration of the diluted salt water. , The diluted salt water is supplied to the electrolyzer from the second chamber where the concentrated salt water is not directly supplied, and the concentration of the diluted salt water does not become so high, so that relatively homogeneous electrolyzed water is always generated and electrolysis in the electrolyzer is performed. Also, the electrode for the deterioration does not deteriorate.

In order to achieve another object, the structural feature of the invention according to claim 3 is that the first chamber and the second chamber are in a state where the inside of the dilute salt water tank is partially communicated with a partition plate. It is divided into chambers, the concentration sensor is housed in the first chamber, and water is supplied to the first chamber from the outside by the water supply means.

According to this, since the capacity of the first chamber supplied with water from the outside can be reduced, the decrease in the concentration of the diluted salt water due to the water supply can be detected quickly by the concentration sensor, and the replenishment control of the concentrated salt water can be performed quickly. . Therefore, the rate of decrease in the concentration of the diluted salt water stored in the diluted salt water tank is suppressed to a low level, and homogeneous electrolyzed water is generated in the electrolytic cell.

Further, the constitutional feature of the invention according to claim 4 is that in the electrolyzed water producing apparatus according to claim 3, the dilute salt water is taken out from the dilute salt water tank by the dilute salt water supply means in the second chamber. I have decided to start from.

According to this, since the diluted salt water is supplied to the electrolytic cell from the second chamber which is not directly affected by the decrease in the concentration of the diluted salt water due to the supply of water, the electrolytic water generated in the electrolytic cell is further improved. It becomes homogeneous.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows an entire electrolyzed water generating apparatus according to the embodiment.

The electrolyzed water generating apparatus includes a concentrated salt water tank 10 (for example, having a capacity of about 10 liters) for storing concentrated salt water, and a dilute salt water tank 20 (for example, having a capacity of about 10 liters) provided below the tank 10 for storing diluted salt water. 20 liters) and an electrolytic cell 3 for electrolyzing the dilute salt water supplied from the dilute salt water tank 20
0, an acidic ionized water tank 40 (for example, a capacity of about 100 liters) that stores the acidic ionized water generated in the electrolytic cell 30, and an alkaline ion that stores the alkaline ionized water that is generated accompanying the generation of the acidic ionized water. Water tank 50
(For example, a capacity of about 100 liters).

The concentrated salt water tank 10 is replenished with a large amount of salts such as sodium chloride and potassium chloride, and water is pumped from an unillustrated external water supply source (for example, water supply) through a water supply pipe 11. ing. This water pipe 11
An electromagnetic valve 12 is interposed in the valve, and the valve 12 constitutes a water supply means for supplying water to the concentrated salt water tank 10 together with the water supply pipe 11. The concentrated salt water tank 10 is always filled with concentrated salt water obtained by dissolving the replenished salt in a substantially saturated state with water, and the remaining undissolvable salt S is always settled at the bottom of the tank 10. Also, a concentrated salt water tank 1
In 0, a float type water level sensor 13 is housed. The water level sensor 13 detects that the water level of the concentrated salt water has become equal to or higher than a predetermined upper limit water level, and also detects that the water level of the concentrated salt water has become equal to or lower than a lower limit water level slightly lower than the upper limit water level.

The concentrated salt water tank 10 includes a dilute salt water tank 20.
A supply pipe 14 for supplying concentrated salt water to the bottom of the tank 10 penetrates upward, and the upper end surface of the supply pipe 14 is slightly above the lower limit water level so that the precipitated salt S is not mixed. Only the lower position opens. An electromagnetic valve 15 is interposed in the supply pipe 14, and the valve 15 serves as the supply pipe 1.
4 together with concentrated salt water supply means.

The dilute salt water tank 20 is divided into a first chamber R1 and a second chamber R2 in a state where the upper part is communicated with a partition plate 21, and the capacities of both chambers R1 and R2 are set to about 1: 3, for example. There is. The lower end outlet of the supply pipe 14 and the outlet of the water supply pipe 22 are arranged above the first chamber R1.
1, the concentrated salt water is supplied through the supply pipe 14, and the water from the external water supply source is also supplied through the water supply pipe 22. An electromagnetic valve 23 is interposed in the water supply pipe 22, and the valve 23 together with the water supply pipe 22 constitutes a water supply means for supplying water to the dilute salt water tank 20. A concentration sensor 24 is housed in the first chamber R1, and the sensor 24 detects the concentration C of the diluted salt water in the diluted salt water tank 20.

A water level sensor 25 is housed in an auxiliary chamber R3 communicating with the second chamber R2 of the dilute salt water tank 20.
5 detects that the water level of the dilute salt water is equal to or higher than the predetermined upper limit water level, and also detects that the water level of the dilute salt water is equal to or lower than the lower limit water level slightly lower than the upper limit water level. Further, an inlet of a supply pipe 27 for supplying dilute salt water to the stirring conduit 26 and the electrolytic cell 30 is connected to the bottom of the second chamber R2. The other end of the conduit 26 is the first of the dilute salt water tank 20.
An electric pump 28 for stirring the diluted salt water in the diluted salt water tank 20 is connected to the side wall of the chamber R1 and is provided in the middle of the conduit 26.
Is interposed. An electric pump 29 is also installed in the supply pipe 27, and the pump 29 constitutes a diluted salt water supply means together with the supply pipe 27.

An overflow pipe 16 is connected to each side wall of the concentrated salt water tank 10 and the dilute salt water tank 20, and the pipe 16 is located at a position slightly higher than the upper limit water level detected by the water level sensors 13 and 25, respectively. And opened in each tank 10, 20. Thus, when the water level of each of the tanks 10 and 20 becomes higher than the position of each of the openings of the overflow pipe 16, the salt water in each of the tanks 10 and 20 is discharged to the outside.

The inside of the electrolytic cell 30 is divided into an anode chamber 32 and a cathode chamber 33 by a diaphragm 31, and each electrode chamber 3
2 and 33 are provided with the supply pipe 27 by the operation of the electric pump 29.
Dilute salt water is supplied through the. In each of the electrode chambers 32 and 33, a positive electrode 34 and a negative electrode 35 to which a positive and negative DC voltage is applied from a DC power supply device 60 are arranged so as to face each other. By applying this DC voltage, the diluted salt water supplied from the diluted salt water tank 20 is electrolyzed, and the anode chamber 32
The acidic ionized water produced in 1 above is supplied to the acidic ionized water tank 40 via the outlet pipe 36.
The alkaline ionized water generated in the cathode chamber 33 is supplied to the alkaline ionized water tank 50 via the outlet pipe 37. The outlet pipe 37 opens near the bottom of the alkaline ionized water tank 50.

One end of a take-out pipe 41 is connected to the bottom of the acidic ionized water tank 40, and a cock 42 is inserted in the same pipe 41. By operating the cock 42, the acid is properly supplied from the other end of the take-out pipe 41. Ion water is taken out. A water level sensor 43 is housed in the acidic ionized water tank 40, and the sensor 43 detects that the water level of the acidic ionized water is equal to or higher than the upper limit water level near the full capacity of the tank 40, and It also detects that the water level is below the lower water level, which is slightly lower than the upper water level.
Further, an overflow pipe 44 is provided in the acidic ionized water tank 40, and the upper end of the panel 44 is at the top of the tank 40.
While being extended to a position higher than the upper limit water level of
The lower end of the pipe 44 is connected to the middle portion of the outlet pipe 37. The overflow pipe 44 has a function of discharging excess acidic ionized water to the alkaline ionized water tank 50, and also has a function of melting chlorine gas generated by electrolysis into the alkaline ionized water.

A discharge pipe 51 also enters the alkaline ionized water tank 50, and the alkaline ionized water in the tank 50 is discharged to the outside by the operation of an electric pump 52 inserted in the pipe 51. . Further, the alkaline ionized water tank 50 also contains a water level sensor 53, which detects that the alkaline ionized water has reached a predetermined upper limit water level or more, and the alkaline ionized water level has the same upper limit. It also detects that the water level is below the lower water level, which is lower than the water level.

This electrolyzed water producing apparatus is provided with the various sensors 1 described above.
3, 24, 25, 43, 53, electromagnetic valves 12, 15,
23, electric pumps 28, 29, 52 and DC power supply device 6
It comprises an electrical control circuit 70 connected to zero. The electric control circuit 70 is composed of a microcomputer and executes a program corresponding to the flowcharts shown in FIGS. 2 and 3 to open / close the electromagnetic valves 12, 15, 23, the electric pumps 28, 29, 52 and the DC power source. Device 60
Control the operation of. Further, the electric control circuit 70 includes
The operation switch 71, the alarm device 72, and the display device 73 are also connected. The operation switch 71 is for controlling the start and stop of the operation of this electrolyzed water generator, and can be switched to an on state or an off state by a manual operation, and
It is controlled by a built-in electromagnetic solenoid to switch from an on state to an off state. Alarm 72
Is for issuing an alarm when the electrolyzed water generator is abnormal, and the indicator 73 is for displaying the type of abnormality when the abnormal.

Next, the operation of the embodiment configured as described above will be described. A large amount of salt S such as sodium chloride and potassium chloride is put into the concentrated salt water tank 10, and the same tank 1 is used.
The concentrated salt water in 0 is almost saturated, and the residual salt S is always settled on the bottom of the tank 10. If the salt S is insufficient, it is replenished as needed.
After that, when the power switch (not shown) is turned on, the electric control circuit 70 starts executing the program in step 100 of FIG. 2, and in step 102, the concentrated salt water tank 10 is started.
To the diluted salt water tank 20 in step 104, and an initial concentration adjustment process of the diluted salt water tank 20 in step 106.

In the initial water supply process for the concentrated salt water tank 10 in step 102, if the water level of the concentrated salt water detected by the water level sensor 13 is less than the upper limit water level, the electromagnetic valve 12 is turned on until the water level reaches the upper limit water level. And the concentrated salt water tank 10 is supplied with water from the outside. Step 1
In the initial water supply process for the diluted salt water tank 20 of 04, if the water level of the diluted salt water detected by the water level sensor 25 is less than the upper limit water level, the electromagnetic valve 23 is switched to the ON state until the same water level reaches the upper limit water level, Dilute salt water tank 20
Water is externally supplied to the first chamber R1. Step 10
In the initial concentration adjustment processing of the dilute salt water tank 20 of 6,
By supplying water to the dilute salt water tank 20, the same tank 20
The concentration of dilute salt water is a small amount ΔCo than the predetermined low concentration Co
When the concentration sensor 24 detects this, the electromagnetic valve 15 is turned on to replenish the concentrated salt water from the concentrated salt water tank 10 to the first chamber R1 of the diluted salt water tank 20. Then, the density sensor 24
When the concentration of the diluted salt water detected by means of the upper limit value Co + ΔCo which is slightly higher than the predetermined low concentration Co by ΔCo, the electromagnetic valve 15 is turned off to stop the supply of the concentrated salt water. By the processes of these steps 102 to 106, the concentrated salt water is stored in the concentrated salt water tank 10 up to the upper limit water level, and in the diluted salt water tank 20, almost predetermined low concentration Co is stored.
Is stored up to the upper limit water level.

After the processing of these steps 102 to 106, the electric control circuit 70 determines in step 108 whether or not the operation switch 71 is in the ON state. The process of step 108 is continued while the operation switch 71 is kept in the off state. When the operation switch 71 is switched to the ON state, it is determined to be “YES” in step 108 and the program is advanced to step 110.

In step 110, the water level sensor 4
It is determined whether or not the water level of the acidic ionized water detected in 3 has reached the upper limit water level. In this case, if the water level of the acidic ionized water is less than the upper limit water level, “N
“O”, and in step 112, the electric pump 28,
29 and the DC power supply 60 are switched to the operating state. The electric pump 28 agitates the diluted salt water in the diluted salt water tank 20,
The electric pump 29 continuously supplies the diluted salt water in the second chamber R2 of the tank 20 to the electrolytic cell 30 via the supply pipe 27.
Since the DC power supply device 60 applies a DC voltage between the positive and negative electrodes 34 and 35, the diluted salt water supplied to the electrolytic cell 30 starts to be electrolyzed. Then, the acidic ionized water electrolyzed in the electrolytic cell 30 starts to be supplied from the anode chamber 32 into the acidic ionized water tank 40 via the outlet pipe 36, and the electrolyzed alkaline ionized water is discharged from the cathode chamber 33. Outlet pipe 3
It is started to be supplied to the alkaline ionized water tank 50 via 7. After the processing in step 112, the flag FLG is set to "1" in step 114. This flag FLG
"1" represents the generation state of electrolyzed water, and "0" represents the generation standby state of electrolyzed water.

On the other hand, if the water level of the acidic ionized water detected by the water level sensor 43 has reached the upper limit water level at the time when the operation switch 71 is turned on, it is determined to be "YES" in step 110. Then, the program proceeds to step 116. In step 116,
The flag FLG is set to "0" indicating the standby state for generating electrolytic water.

After the processing of steps 114 and 116, the electric control circuit 70 operates the operation switch 71 in step 118.
It is again determined whether or not is on. In this case, since the operation switch 71 has been switched to the ON state as described above, it is determined to be "YES" in the same step 118, and the program proceeds to step 122 of FIG.

In step 122, the flag FLG
Is "1". First, the flag FLG
The case where is set to "1" indicating the generation state of electrolyzed water will be described. In this case, it is determined in step 124 whether or not the water level of the acidic ionized water detected by the water level sensor 43 has reached the upper limit water level, as described above. If the water level of the acidic ionized water has not reached the upper limit water level, the program proceeds to step 136 based on the judgment of “NO” in step 124. The flag FLG is also checked in step 136, but in this case as well, "Y
ES "and the program is executed in steps 138 to 142.
Proceed to.

In step 138, the water level sensor 1
When the water level of the concentrated salt water in the concentrated salt water tank 10 becomes equal to or lower than the lower limit water level based on the water level detection by No. 3, the electromagnetic valve 12
Is switched on, and by the water supply by the same switching,
When the water level of the concentrated salt water in the tank 10 becomes equal to or higher than the upper limit water level, the electromagnetic valve 12 is turned off. In step 140, based on the water level detection by the water level sensor 25, the electromagnetic valve 23 is turned on when the water level of the dilute salt water in the dilute salt water tank 20 becomes equal to or lower than the lower limit water level, and the tank is supplied with water by the switching. When the water level of the dilute salt water in 20 reaches or exceeds the upper water level, the electromagnetic valve 2
Switch 3 to the off state. Further, in step 142, based on the concentration detected by the concentration sensor 24, the concentration of the diluted salt water in the diluted salt water tank 20 is the lower limit value Co-ΔC.
When it becomes lower than o, the electromagnetic valve 15 is switched to the ON state, and when the concentration of the diluted salt water in the tank 20 becomes equal to or higher than the upper limit value Co + ΔCo due to the supply of the concentrated salt water by the switching, the electromagnetic valve 15 is turned off. Switch to the state. It should be noted that these steps 138 to 142 do not stop the progress of the program during the supply of water or concentrated salt water, and the respective controls of the steps 138 to 142 are performed during the circulation process of steps 118 to 144. It is something that will be done.

After the processes of steps 138 to 142, the concentration C detected by the concentration sensor 24 in step 144 is larger than the upper limit value Co + ΔCo, and the abnormality detection value Co is larger than the upper limit value Co + ΔCo.
It is determined whether or not it is + α or more. If the detected concentration C is not equal to or more than the abnormality detection value Co + α, it is determined to be “NO” in step 144, so the electric control circuit 70 continues to repeatedly execute the circulation processing of steps 118, 122, 124, 136 to 144. Therefore, during this circulation process,
The concentrated salt water in the concentrated salt water tank 10 and the diluted salt water in the diluted salt water tank 20 are maintained between the lower limit water level and the upper limit water level, and the concentration of the diluted salt water in the diluted salt water tank 20 is the lower limit value Co−.
It is maintained between ΔCo and the upper limit value Co + ΔCo. Then, the diluted salt water is continuously electrolyzed in the electrolytic bath 30, and the electrolyzed acidic ion water and alkaline ion water are the acidic ion water tank 40 and the alkaline ion water tank 5.
It keeps accumulating at 0.

When the acidic ionized water tank 40 becomes nearly full due to the accumulation of the acidic ionized water and the water level sensor 43 detects the upper limit water level, the step 124 during the circulation process is performed.
And the program is judged to be "YES" at step 126.
Proceed to. In step 126, the electric pump 2
8, 29 and the DC power supply device 60 are switched to the non-operating state, and the electromagnetic valves 12, 15, 23 are switched to the off state. The electromagnetic valves 12, 1 already in the off state
Regarding Nos. 5 and 23, they are kept in the off state as they are. Thereby, stirring of the diluted salt water in the diluted salt water tank 20, supply of the diluted salt water from the diluted salt water tank 20 to the electrolytic cell 30, water supply to the concentrated salt water tank 10 and the diluted salt water tank 20, the diluted salt water tank 20.
The adjustment of the concentration of the diluted salt water in the inside and the voltage application to the positive and negative electrodes 34, 35 are stopped, and the electrolyzed water producing apparatus is in a standby state for producing electrolyzed water. After the processing in step 126, the flag FLG is set to "0" in step 128 and the program proceeds to step 136. In step 136, since it is determined to be "NO" based on the flag FLG set to "0", the processes of steps 136 to 142 are not executed.

On the other hand, the acidic ionized water stored as described above is operated by operating the cock 42 so that the extraction pipe 41
It is used by being taken out via the. Further, when the alkaline ionized water tank 50 is filled with the alkaline ionized water to a nearly full level and the water level sensor 53 detects that the ionized water has reached the upper limit water level, the electric control circuit 70 executes a program (not shown) to drive the electric pump. By operating 52, the alkaline ionized water in the alkaline ionized water tank 50 is discharged to the outside through the discharge pipe 51. The operation of the electric pump 52 is stopped when the water level sensor 53 detects the lower limit water level.

When the electrolytic water generation standby state is entered as described above, it is determined to be "NO" based on the flag FLG set to "0" in step 122 as well, and the program proceeds to step 130. In step 130, it is determined whether or not the water level of the acidic ionized water detected by the water level sensor 43 has reached the lower limit water level. If the water level of the acidic ionized water in the acidic ionized water tank 40 does not drop to the lower limit water level, it is determined to be “NO” in step 130. Therefore, in this case, the electric control circuit 70 executes the circulation process including steps 118, 122, 130, 136 and 144 to keep the electrolyzed water generation device in the generation standby state.

On the other hand, the acidic ionized water tank 4 as described above
When the water level in the tank 40 is lowered by the extraction of the acidic ionized water in 0 and the water level sensor 43 detects the lower limit water level, the electric control circuit 70 causes the step 13 in step 13 during the circulation process.
It is determined to be “YES” at 0, the electric pumps 28 and 29 and the DC power supply device 60 are switched to the operating state at step 132, and the flag FLG is set at step 134.
To “1”. As a result, the electrolyzed water producing apparatus is returned to the electrolyzed water producing state, and again produces acidic ionized water and alkaline ionized water to produce the acidic ionized water tank 4
0 and the alkaline ionized water tank 50 starts to store.

In addition, steps 118 to 14 as described above
When the operation switch 71 is manually turned off during the circulation process of No. 4, the electric control circuit 70 determines “YES” in step 118 and advances the program to step 120. In step 120, the electric pumps 28, 29, 52 and the DC power supply device 60 are switched to the non-operating state, and the electromagnetic valves 12, 15, 23 are turned on.
Is turned off. In this case as well, the electric pumps 28, 29, 52 and the DC power supply device 60 in the inoperative state and the electromagnetic valves 12, 15, 23 in the off state are maintained in the inoperative state and the off state as they are. As a result, in this case, all the operations of the electrolyzed water generator except the electric control circuit 70 are stopped and controlled. And
The electric control circuit 70 continues to execute the processing of steps 118 and 120 until the operation switch 71 is turned on next.

Further, when the concentration C detected by the concentration sensor 24 becomes equal to or higher than the abnormality detection value Co + α during the circulation processing consisting of the steps 118 to 144, the electric control circuit 7
For 0, it is determined to be “YES” in step 144 and the program proceeds to steps 146 to 152. Step 146
In the same manner as in step 120, the electric pumps 28, 29, 52 and the DC power supply device 60 are switched to the inactive state, and the electromagnetic valves 12, 15, 23 are switched to the off state. In step 148, the electromagnetic solenoid built in the operation switch 71 is controlled to turn off the operation switch 71. Further, in step 150, the alarm device 72 is controlled to generate an alarm sound, and in step 152, the display device 73 is controlled to display the type of abnormality. Then, after the processing of these steps 146 to 152, the execution of the program is ended by the processing of step 154. In this case, the program control described above is not performed unless the power is newly turned on.

As described above, in the electrolyzed water producing apparatus of the above-described embodiment, the electric control circuit 70 performs the process of step 144 during the production of the electrolyzed water and the standby for the production of the electrolyzed water. We are monitoring for abnormally high concentrations. Then, if an abnormality occurs in the electromagnetic valve 15 and salt water leaks, and particularly if the salt water leaks during standby for generation of electrolyzed water and the concentration of the dilute salt water becomes abnormally high, the concentration of the dilute salt water is increased in step 144. It is determined to be abnormally high, and the operation of generating electrolyzed water is stopped by the processing of steps 146 and 148. Therefore, inhomogeneous electrolyzed water is not continuously generated in the electrolytic cell 30, and
It is possible to prevent the deterioration of the electrodes 34 and 35 in the above. Further, at this time, since the abnormality alarm is generated and the abnormality is displayed by the processing of steps 150 and 152, the user can recognize the abnormality and deal with the abnormality.

In this case, the dilute salt water tank 20 is divided into the first and second chambers R1 and R2 by the partition plate 21 which communicates with the upper portion thereof, and the concentrated salt water is fed to the first through the supply pipe 14.
The chamber R1 is replenished and the capacity of the first chamber R1 is small,
The concentration of dilute salt water in the first chamber R1 rises sharply. on the other hand,
Since the concentration sensor 24 for detecting the concentration used for the abnormality determination of the diluted salt water concentration is also housed in the first chamber R1,
The abnormality is quickly determined. Therefore, it is possible to shorten the time during which the non-homogeneous electrolyzed water is generated in the electrolyzer 30, and to suppress the deterioration of the electrodes 34 and 35 of the electrolyzer 30 to a minimum. Furthermore, the user can cope with the abnormality. Can be done quickly.

In step 142, the dilute salt water tank 2 is also used.
Even when adjusting the concentration of the dilute salt water in 0, as described above, the capacity of the first chamber R1 is small and the water supply from the outside is also supplied to the first chamber R1 via the water supply pipe 22, so the concentration of the dilute salt water is reduced. The decrease in is quickly detected. Therefore, the rate of decrease in the concentration of the diluted salt water stored in the diluted salt water tank 20 is suppressed to be small, and homogeneous electrolyzed water is generated in the electrolytic cell.

Further, the supply of the diluted salt water from the diluted salt water tank 20 to the electrolytic cell 30 by the operation of the electric pump 29 is performed from the second chamber R2 of the tank 20 through the supply pipe 27. In this case, the dilute salt water in the second chamber R2 is the same as the first chamber R1.
Since it is not directly affected by the concentration change due to the supplementation of concentrated salt water and water to the electrolyzer 30, the concentration of the dilute salt water sent to the electrolyzer 30 is kept substantially constant, and more uniform electrolyzed water is obtained in the electrolyzer 30. Will be generated.

In the above embodiment, the first chambers R1 and R2 are made to communicate with each other above the partition plate 21, but a communication hole is provided in the middle portion or the lower portion of the partition plate 21 to form the first chamber. The R1 and the second chamber R2 may be communicated with each other at an intermediate portion or a lower portion of the partition plate 21.

In the above embodiment, the electromagnetic valve 15 is used to replenish the concentrated salt water in the concentrated salt water tank 10 to the diluted salt water tank 20, but an electric pump is used instead of the valve 15. May be. In this case, it is not necessary to position the concentrated salt water tank 10 above the diluted salt water tank 20.

[Brief description of drawings]

FIG. 1 is an overall schematic diagram of an electrolyzed water generation device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a first half of a program executed by the electric control circuit (microcomputer) of FIG.

FIG. 3 is a flowchart showing the latter half of the program.

[Explanation of symbols]

10 ... Concentrated salt water tank, 11 ... Water supply pipe, 12, 15 ... Electromagnetic valve, 13 ... Water level sensor, 14 ... Supply pipe, 20 ... Diluted salt water tank, 21 ... Partition plate, R1 ... First chamber, R2 ... Second
Chamber, 22 ... Water supply pipe, 23 ... Electromagnetic valve, 24 ... Concentration sensor, 25 ... Water level sensor, 27 ... Supply pipe, 29 ... Electric pump, 30 ... Electrolyzer, 34, 35 ... Electrode, 36, 37 ... Outflow pipe, 40 ... acidic ionized water tank, 41 ... take-out pipe,
42 ... Cock, 43 ... Water level sensor, 50 ... Alkaline ionized water tank, 51 ... Discharge pipe, 52 ... Electric pump, 53
... Water level sensor, 60 ... DC power supply device, 70 ... Electric control circuit (microcomputer), 71 ... Operation switch, 7
2 ... Alarm device, 73 ... Display device.

Claims (4)

[Claims] 1. A concentrated salt water tank for storing concentrated salt water, a diluted salt water tank for storing a predetermined low concentration of diluted salt water, and water to the diluted salt water tank from the outside when the water level in the diluted salt water tank falls below a specified water level. Means for replenishing water, a concentration sensor provided in the dilute salt water tank for detecting the concentration of salt water in the tank, and the concentrated salt water when the concentration detected by the concentration sensor is lower than the predetermined low concentration. The concentrated salt water replenishing means for supplying concentrated salt water from the tank to the diluted salt water tank to increase the concentration of the diluted salt water in the diluted salt water tank to the predetermined low concentration, and the salt water stored in the diluted salt water tank. And a diluted salt water supply means for taking out and supplying the electrolytic bath,
In the electrolyzed water generation device configured to electrolyze the supplied diluted salt water in the electrolytic cell and to take out the electrolyzed electrolytic water from the electrolytic cell, the concentration of the diluted salt water detected by the concentration sensor is An abnormality detecting means is provided for detecting an abnormality in the concentration of the diluted salt water when the concentration is higher than the predetermined low concentration and the concentration is higher than the predetermined low concentration. And a second chamber, wherein the concentration sensor is housed in the first chamber, and the concentrated salt water is replenished in the first chamber by the concentrated salt water replenishing means. Generator. 2. The electrolyzed water generator according to claim 1, wherein the diluted salt water is taken out from the diluted salt water tank by the diluted salt water supply means from the second chamber. Water generator. 3. A concentrated salt water tank for storing concentrated salt water, a diluted salt water tank for storing a predetermined low concentration of diluted salt water, and water from the outside to the diluted salt water tank when the water level in the diluted salt water tank falls below a specified water level. Means for replenishing water, a concentration sensor provided in the dilute salt water tank for detecting the concentration of salt water in the tank, and the concentrated salt water when the concentration detected by the concentration sensor is lower than the predetermined low concentration. The concentrated salt water replenishing means for supplying concentrated salt water from the tank to the diluted salt water tank to increase the concentration of the diluted salt water in the diluted salt water tank to the predetermined low concentration, and the salt water stored in the diluted salt water tank. And a diluted salt water supply means for taking out and supplying the electrolytic bath,
In the electrolyzed water generator configured to electrolyze the supplied diluted salt water in the electrolytic bath and take out the electrolyzed electrolyzed water from the electrolytic bath, the diluted salt water tank is partially partitioned by a partition plate. It is divided into a first chamber and a second chamber in a state of being communicated with each other, the concentration sensor is housed in the first chamber, and water is externally supplied to the first chamber by the water supply means. An electrolyzed water generator. 4. The electrolyzed water generator according to claim 3, wherein the diluted salt water is taken out from the diluted salt water tank by the diluted salt water supply means from the second chamber. Water generator.