JP3548641B2 - Electrolyzed water generator - Google Patents

Description

[0001]
TECHNICAL 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, and stores the diluted salt water in the diluted salt water tank. by supplying dilute brine that has been stored in the electrolytic cell related to electrolytic water generation apparatus for generating electrolytic water by electrolysis at the same electrolytic cell.
[0002]
[Prior art]
Conventionally, this type of electrolyzed water generating apparatus has a concentrated salt water tank storing a predetermined high concentration of concentrated salt water, and a lid provided below the concentrated salt water tank and covering an upper surface, and supplies a predetermined low concentration of diluted salt water. It has a storage salt water tank. One end of a connecting pipe provided with a valve is connected to the concentrated salt water tank, and the other end of the connecting pipe is connected to the lid of the diluted salt water tank.By opening the valve, the concentrated salt water in the concentrated salt water tank is diluted. The water is supplied into the salt water tank. The dilute salt water tank contains a water level sensor and a concentration sensor that respectively detect the level and concentration of the dilute salt water in the tank, and selectively replenishes new water from an external water supply source based on the detection by the water level sensor. The valve is selectively opened and closed based on the detection by the concentration sensor to replenish the concentrated salt water from the concentrated salt water tank, and a constant amount of the diluted salt water is always stored in the diluted salt water tank at a constant concentration . The dilute salt water thus stored in the dilute salt water tank is supplied to the electrolytic cell, where it is electrolyzed.
[0003]
[Problems to be solved by the invention]
However, in the conventional equipment of the damage to the connecting pipe, the leakage due to poor connection or the like between the valve occurs, concentrated salt water leaking from the connecting tube the top surface of the cover of the outer circumference and a rare brine tank connecting pipe As a result, there is a problem that the liquid leaks out of the diluted salt water tank. In addition, the user had no choice but to visually check the countermeasures against the water leakage.
[0004]
The present invention is, to address the above SL problems, concentrated salt water tank and damage the connecting pipe connecting the dilute salt water tank, when the water leakage due to poor connection or the like between the valve has occurred, concentrated salt water leaked rare brine It is an object of the present invention to provide an electrolyzed water generation device that prevents leakage to the outside of a tank and can quickly cope with leakage of the connecting pipe .
[0005]
Means for Solving the Problems and Their Effects
In order to achieve the above object, the present invention provides a diluted salt water tank disposed below a concentrated salt water tank, an upper end connected to the concentrated salt water tank, and a lower end connected to a lid covering an upper surface of the diluted salt water tank. A connection pipe for supplying the concentrated salt water stored in the concentrated salt water tank to the diluted salt water tank when the electromagnetic valve interposed in the middle portion thereof is opened, and supplying fresh water from an external water supply source to the diluted salt water tank. A water supply means for supplying, and controlling the water supply means in accordance with a water level detected by a water level sensor provided in the dilute salt water tank to keep a level of the dilute salt water in the dilute salt water tank substantially constant; Control means for controlling the opening and closing of the electromagnetic valve in accordance with the concentration of the diluted salt water detected by the concentration sensor provided in the tank to keep the concentration of the diluted salt water in the diluted salt water tank substantially constant; and Supplied An electrolyzer for electrolyzing dilute salt water to generate electrolyzed water, wherein the electrolyzed water is generated by electrolysis of the dilute salt water. In addition to providing a concave portion in which concentrated salt water leaked from a broken portion of the pipe, an interposition portion of the electromagnetic valve and the like flows down and is stored, a through hole that opens into the diluted salt water tank is provided in the concave portion. And an electrolyzed water generating apparatus .
[0006]
In the electrolytic water generation apparatus configured as described above, breakage of the connection pipe, when the water leakage due to poor connection or the like of the electromagnetic valve has occurred, concentrated salt water leaking from the connecting pipe dilute brine tank down the outer periphery of the connecting pipe Flows into the dilute salt water tank through the through hole and does not leak out of the dilute salt water tank.
[0007]
The practice of the present invention, the electrolytic water generation apparatus configured as described above, to detect water leakage of the connection pipe when the concentration of dilute brine that has been detected by the density sensor is higher than the low concentrations of the constant Tokoro Rosui It is desirable to provide detection means.
[0008]
In this embodiment, if the concentrated brine was by remote to leakage of the connecting tube has flowed into the dilute brine tank as described above, connecting an increase in the concentration of dilute brine by inflow of the dark saltwater concentration sensor tube Detected as water leakage. Therefore, even if the user is not present, water leakage from the connecting pipe is automatically detected, and the water leakage can be promptly dealt with.
[0009]
Moreover, the practice of the present invention, the electrolytic water generation apparatus configured as described above, is Rukoto provided before SL through hole in the vicinity of the density sensor desired. In this case, the increase in the concentration of the dilute salt water is detected more quickly by the concentration sensor, so that the water leakage detecting means can more quickly detect the water leakage.
[0011]
Furthermore, the practice of the present invention, the electrolytic water generation apparatus configured as described above, by partitioning the inside of the bottom surface to the upright and by the partition plate the noble brine tank before KiNozomi brine tank into two liquid chambers at these conditions where the two liquid chambers were partially communicated, it is desirable that the through hole above the same liquid chamber while housing the density sensor in hand of the liquid chamber is to be positioned. In this case, since the capacity of the liquid chamber into which the concentrated salt water flows can be reduced, when water leaks from the connecting pipe, the concentration of the liquid chamber rapidly increases, and the concentration sensor detects the rapidly rising diluted salt water. Detect concentration. Therefore, the water leak detecting means can detect the water leak more quickly.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 schematically shows an entire electrolyzed water generating apparatus according to the embodiment.
[0014]
The electrolyzed water generating apparatus electrolyzes a concentrated salt water tank 10 for storing concentrated salt water, a diluted salt water tank 20 provided below the tank 10 for storing diluted salt water, and a diluted salt water supplied from the diluted salt water tank 20. An electrolytic cell 30, an acidic ionic water tank 40 for storing acidic ionic water generated in the electrolytic cell 30, and an alkaline ionic water tank 50 for storing alkaline ionic water generated accompanying the generation of acidic ionic water are provided. ing.
[0015]
The concentrated salt water tank 10 is replenished with a large amount of salt such as sodium chloride and potassium chloride, and a lower end outlet of a water supply pipe 11 is connected to a lid 10 a that covers the upper surface of the tank 10. Water is supplied into the tank 10 from an external water supply (not shown) (not shown) with the interposed electromagnetic valve 12 opened. The concentrated salt water tank 10 is always filled with the concentrated salt water obtained by dissolving the replenished salt in a substantially saturated state with water, and the remaining undissolved salt S is always settled at the bottom of the tank 10. A water level sensor 13 is accommodated in the concentrated salt water tank 10. 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 the lower limit water level lower than the upper limit water level.
[0016]
In the concentrated salt water tank 10, a supply pipe 14 for supplying the concentrated salt water to the diluted salt water tank 20 penetrates upward at the bottom of the tank 10, and the upper end surface of the supply pipe 14 The opening is provided at a position slightly lower than the lower limit water level so that S is not mixed. An electromagnetic valve 15 is interposed in the supply pipe 14, and the valve 15 supplies the concentrated salt water in the concentrated salt water tank 10 to the diluted salt water tank 20 through the supply pipe 14 in an open state.
[0017]
As shown in FIG. 2, the dilute salt water tank 20 is connected to the first chamber R1 and the second chamber R2 in a state where the upper portions thereof are communicated with each other by a partition plate 21 erected so that the upper end is lower than a predetermined lower limit water level. Is divided into The capacities of the two chambers R1 and R2 are set to, for example, about 1: 3, and a cover 20a that covers the upper surface of the tank 20 has a concave portion that is recessed downward across the partition plate 21 at a position above the two chambers R1 and R2. 20a1 is provided. The lower end outlet of the supply pipe 14 is connected to a hole 20a2 provided in a portion of the recess 20a1 located above the second chamber R2, and the concentrated salt water is supplied to the second chamber R2 via the supply pipe 14. It is supposed to be. The concave portion 20a1 is further depressed at the peripheral edge portion, and a plurality of drain holes 20a3 are provided in the depressed portion and above the first chamber R1.
[0018]
A lower end outlet of a water supply pipe 22 is connected to a hole 20a4 provided in a portion of the lid 20a located above the first chamber R1, and an electromagnetic valve interposed in the water supply pipe 22 is connected to the diluted salt water tank 20. In the open state of 23, water is supplied from an external water supply source. In addition, a concentration sensor 24 is attached to a hole 20a5 located above the first chamber R1 of the lid 20a and in the vicinity of the drainage hole 20a3. Of the diluted salt water is detected. Further, a water level sensor 25 is attached to the lower surface of a portion of the lid 20a located above the second chamber R2, and the water level sensor 25 detects that the water level of the dilute salt water has fallen below the predetermined lower limit water level. At the same time, it is also detected that the water level of the diluted salt water is higher than or equal to the upper limit water level which is higher than the lower limit water level.
[0019]
The bottom of the dilute salt water tank 20 is connected to a conduit 26 for stirring and an inlet of a supply pipe 27 for supplying dilute salt water to the electrolytic cell 30. The other end of the conduit 26 is connected to the side wall of the dilute salt water tank 20, and an electric pump 28 is interposed in the middle part of the pipe 26. Stir the brine. An electric pump 29 is also interposed in the supply pipe 27, and the pump 29 supplies the dilute salt water in the dilute salt water tank 20 to the electrolytic cell 30 through the supply pipe 27 in an operating state.
[0020]
An overflow pipe 16 is connected to each side wall of the concentrated salt water tank 10 and the diluted 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. It opens inside 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.
[0021]
The interior of the electrolytic cell 30 is partitioned by a diaphragm 31 into an anode chamber 32 and a cathode chamber 33, and the electrode chambers 32 and 33 are supplied with dilute salt water via the supply pipe 27 by the operation of the electric pump 29. It has become. In each of the electrode chambers 32 and 33, a positive electrode 34 and a negative electrode 35 to which positive and negative DC voltages are applied from a DC power supply device 60 are disposed to face each other. The dilute salt water supplied from the dilute salt water tank 20 is electrolyzed by the application of the DC voltage, and the acidic ionized water (electrolyzed water) generated in the anode chamber 32 is transferred to the acidic ionized water tank 40 through the outlet pipe 36. Is supplied. The alkaline ionized water (electrolyzed 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 is open near the bottom of the alkaline ionized water tank 50.
[0022]
One end of a take-out pipe 41 is connected to the bottom of the acidic ion water tank 40, and a cock 42 is interposed in the pipe 41. By operating the cock 42, the acidic ion water is appropriately supplied from the other end of the take-out pipe 41. It is to be taken out. A water level sensor 43 is housed in the acidic ionic water tank 40. The sensor 43 detects that the level of the acidic ionic water is equal to or higher than an upper limit water level close to fullness of the tank 40, and the level of the acidic ionic water is lowered. It also detects that it has fallen below the lower limit water level that is lower than the upper limit water level. An overflow pipe 44 is provided in the acidic ion water tank 40, and an upper end of the panel 44 extends to a position higher than the upper limit water level of the tank 40, and a lower end of the pipe 44 is provided at an intermediate portion of the outlet pipe 37. It is connected to the. The overflow pipe 44 has a function of discharging excess acidic ion water to the alkaline ion water tank 50 and also has a function of dissolving chlorine gas generated by electrolysis into the alkaline ion water.
[0023]
A discharge pipe 51 also penetrates into 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 interposed in the pipe 51. A water level sensor 53 is also accommodated in the alkaline ionized water tank 50. The sensor 53 detects that the level of the alkaline ionized water has become equal to or higher than a predetermined upper limit water level, and that the water level of the alkaline ionized water has the same upper limit. It also detects that it has fallen below the lower water level, which is lower than the water level.
[0024]
The electrolyzed water generator includes an electric control circuit 70 connected to the various sensors 13, 24, 25, 43, 53, the electromagnetic valves 12, 15, 23, the electric pumps 28, 29, 52, and the DC power supply 60. ing. The electric control circuit 70 is constituted by a microcomputer and executes programs corresponding to the flowcharts shown in FIGS. 3 and 4 to open and close the electromagnetic valves 12, 15, and 23, and to operate the electric pumps 28, 29 and 52 and the DC power supply. The operation of the device 60 is controlled. An operation switch 71, an alarm device 72, and a display device 73 are also connected to the electric control circuit 70. The operation switch 71 is for controlling the start and stop of the operation of the electrolyzed water generation device, and can be manually turned on or off, and controlled from a built-in electromagnetic solenoid to change from the on state to the off state. It can be switched. The alarm 72 is for generating an alarm when the supply pipe 14 is leaked, and the indicator 73 is for displaying that a leak has occurred at the time of the leak.
[0025]
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 charged into the concentrated salt water tank 10, and the concentrated salt water in the tank 10 is almost saturated. At the same time, the remaining salt S is always settled at the bottom of the tank 10. If the salt S is insufficient, it is replenished as needed. Thereafter, when the power switch (not shown) is turned on, the electric control circuit 70 starts executing the program in step 100 of FIG. 3, the initial water supply process for the concentrated salt water tank 10 in step 102, and the dilute salt water in step 104. An initial water supply process for the tank 20 and an initial concentration adjustment process for the diluted salt water tank 20 are executed in step 106.
[0026]
In the initial water supply process for the concentrated salt water tank 10 in step 102, if the level of the concentrated salt water detected by the water level sensor 13 is lower than the upper limit water level, the electromagnetic valve 12 is turned on until the same water level reaches the upper limit water level, Water is supplied to the concentrated salt water tank 10 from outside. In the initial water supply process for the dilute salt water tank 20 in step 104, if the level of the dilute salt water detected by the water level sensor 25 is less than the upper limit level, the electromagnetic valve 23 is switched to the ON state until the level reaches the upper limit level. The water is supplied to the first chamber R1 of the dilute salt water tank 20 from outside. In addition, in the initial concentration adjustment processing of the dilute salt water tank 20 in Step 106, the concentration of the dilute salt water in the dilute salt water tank 20 is lower by a small amount ΔCo than a predetermined low concentration Co by the supply of water to the dilute salt water tank 20. When it becomes lower than ΔCo and the concentration sensor 24 detects this, the electromagnetic valve 15 is switched to the ON state and the concentrated salt water is replenished from the concentrated salt water tank 10 to the second chamber R2 of the diluted salt water tank 20. When the concentration of the dilute salt water detected by the concentration sensor 23 reaches the upper limit Co + ΔCo which is higher than the predetermined low concentration Co by a very small amount ΔCo, the electromagnetic valve 15 is turned off to stop supplying the concentrated salt water. By the processing 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 the dilute salt water of approximately predetermined low concentration Co is stored in the diluted salt water tank 20 up to the upper limit water level.
[0027]
After the processing in steps 102 to 106, the electric control circuit 70 determines in step 108 whether the operation switch 71 is on. While the operation switch 71 is kept in the off state, the processing of step 108 is continued. When the operation switch 71 is switched to the ON state, “YES” is determined in step 108, and the program proceeds to step 110.
[0028]
Steps 110 to 116 are processes for setting the initial state of the electrolyzed water generation device to either the electrolyzed water generation state or the generation standby state. That is, if the water level of the acidic ionized water detected by the water level sensor 43 is less than the upper limit water level, the electric pumps 28 and 29 and the DC power supply device 60 are operated in step 112 based on the determination of “NO” in step 110. Switching to the state, the dilute salt water in the dilute salt water tank 20 is stirred, the dilute salt water is continuously supplied to the electrolytic cell 30 via the supply pipe 27, and a direct current is supplied between the positive and negative electrodes 34, 35 of the electrolytic cell 30. Apply voltage. As a result, the dilute salt water supplied to the electrolytic cell 30 starts to be electrolyzed, and the acidic ion water generated by the electrolysis starts to be supplied from the anode chamber 32 into the acidic ion water tank 40 via the outlet pipe 36, and the alkaline ion water Water starts to be supplied from the cathode chamber 33 to the alkaline ionized water tank 50 via the outlet pipe 37. Then, after the above processing, in step 114, the flag FLG is set to a value “1” representing the state of generation of the electrolyzed water, and the program proceeds to step 118. 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, the flag FLG is set in step 116 to indicate a state of waiting for generation of electrolyzed water based on the determination of “YES” in step 110. The value is set to “0”, and the program proceeds to step 118 as it is.
[0029]
In step 118, it is determined again whether or not the operation switch 71 is on. In this case, since the operation switch 71 has been switched to the ON state as described above, it is determined “YES” in step 118, and the program proceeds to step 122 in FIG.
[0030]
In step 122, it is determined whether or not the flag FLG is "1". If the flag FLG is set to "1" indicating the generation state of the electrolyzed water, it is determined in step 124 whether or not the level of the acidic ionized water detected by the water level sensor 43 has reached the upper limit level. judge. If the level of the acidic ionized water has not reached the upper limit level, the program proceeds to step 136 based on the determination of “NO” in step 124. At step 136, the flag FLG is also checked. In this case, too, the determination is "YES" and the program proceeds to steps 138 to 142.
[0031]
In step 138, based on the water level detection by the water level sensor 13, when the level of the concentrated salt water in the concentrated salt water tank 10 falls below the lower limit water level, the electromagnetic valve 12 is switched to the ON state. When the level of the concentrated salt water in 10 becomes equal to or higher than the upper limit level, the electromagnetic valve 12 is turned off. In step 140, based on the water level detection by the water level sensor 25, the solenoid valve 23 is turned on when the level of the dilute salt water in the dilute salt water tank 20 becomes equal to or lower than the lower limit water level. When the water level of the dilute salt water in 20 becomes equal to or higher than the upper limit water level, the electromagnetic valve 23 is turned off. In step 142, based on the concentration detected by the concentration sensor 24, when the concentration of the dilute salt water in the dilute salt water tank 20 becomes lower than the lower limit value Co-ΔCo, the electromagnetic valve 15 is turned on, and the switching is performed. When the concentration of the dilute salt water in the tank 20 becomes equal to or higher than the upper limit value Co + ΔCo, the electromagnetic valve 15 is turned off. Note that these steps 138 to 142 do not stop the progress of the program during water supply or concentrated salt water replenishment, and the above-described respective controls in steps 138 to 142 are repeatedly performed during the circulation process consisting of steps 118 to 144. Is what is done.
[0032]
After the processing in steps 138 to 142, it is determined in step 144 whether or not the concentration C detected by the concentration sensor 24 is equal to or greater than a water leak detection value Co + α which is larger than the upper limit value Co + ΔCo. If the detected concentration C is not equal to or greater than the water leak detection value Co + α, “NO” is determined in step 144, and the electric control circuit 70 continues to repeatedly execute the circulation processing of steps 118, 122, 124, and 136 to 144. Therefore, during this circulation processing, 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 reduced to the lower limit. It is maintained between the value Co−ΔCo and the upper limit value Co + ΔCo. Then, the dilute salt water is continuously electrolyzed in the electrolytic tank 30, and the electrolyzed acidic ion water and alkaline ion water continue to be accumulated in the acidic ion water tank 40 and the alkaline ion water tank 50.
[0033]
When the acidic ion water tank 40 becomes almost full due to the accumulation of the acidic ion water, and the water level sensor 43 detects the upper limit water level, “YES” is determined in step 124 during the circulation processing, and the program proceeds to step 126. Proceed. In step 126, the electric pumps 28, 29 and the DC power supply 60 are switched to a non-operating state, and the electromagnetic valves 12, 15, 23 are switched to an off state. The electromagnetic valves 12, 15, and 23 that are already in the off state are kept in the off state. Thereby, the dilute salt water in the dilute salt water tank 20 is stirred, the dilute salt water is supplied from the dilute salt water tank 20 to the electrolytic tank 30, the concentrated salt water is supplied to the dilute salt water tank 10 and the dilute salt water tank 20, and the dilute salt water in the dilute salt water tank 20 is diluted. And the application of the voltage to the positive and negative electrodes 34 and 35 is stopped, and the electrolyzed water generator enters a state of waiting for generation of 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 “NO” is determined based on the flag FLG set to “0”, the processing of steps 138 to 142 is not executed.
[0034]
On the other hand, the acidic ion water stored in the acidic water ion water tank 40 as described above is taken out to the outside via the take-out pipe 41 and operated by operating the cock 42. When the water level sensor 53 detects that the alkaline ionized water tank 50 is almost filled with alkaline ionized water and the ionized water has reached the upper limit water level, the electric control circuit 70 executes an unillustrated program to execute 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 by the detection of the lower limit water level by the water level sensor 53.
[0035]
When the process enters the standby state for the generation of the electrolyzed water as described above, it is determined as “NO” based on the flag FLG set to “0” in step 122, and the program proceeds to step. In step 130, it is determined whether or not the level of the acidic ionized water detected by the level sensor 43 has reached the lower limit level. If the level of the acidic ionized water in the acidic ionized water tank 40 does not drop to the lower limit, it is determined to be “NO” in step 130. Therefore, in this case, the electric control circuit 70 executes a circulation process including steps 118, 122, 130, 136, and 144 to keep the electrolyzed water generation device in a generation standby state.
[0036]
On the other hand, when the water level in the acidic ion water tank 40 is lowered by the extraction of the acidic ion water in the acidic ion water tank 40 as described above and the water level sensor 43 detects the lower limit water level, the electric control circuit 70 during the circulation processing, In step 130, “YES” is determined, and in step 132, the electric pumps 28 and 29 and the DC power supply 60 are switched to the operating state, and in step 134, the flag FLG is changed to “1”. As a result, the electrolyzed water generator returns to the electrolyzed water generation state, and again generates acidic ionized water and alkaline ionized water and starts storing them in the acidic ionized water tank 40 and the alkaline ionized water tank 50.
[0037]
Also, if the operation switch 71 is manually turned off during the circulation processing of steps 118 to 144 as described above, the electric control circuit 70 determines “YES” in step 118 and shifts the program to step 120. Proceed. In step 120, the electric pumps 28, 29, and 52 and the DC power supply 60 are switched to a non-operating state, and the electromagnetic valves 12, 15, and 23 are switched to an off state. In this case as well, the electric pumps 28, 29, and 52 and the DC power supply device 60 in the inactive state and the electromagnetic valves 12, 15, and 23 in the off state are kept in the inactive state and the off state. As a result, in this case, all the operations of the electrolyzed water generating apparatus except the electric control circuit 70 are stopped and controlled. Then, the electric control circuit 70 continues to execute the processing of steps 118 and 120 until the operation switch 71 is turned on next time.
[0038]
Further, during the circulating process consisting of steps 118 to 144, water is leaked from the supply pipe 14 and the concentrated salt water leaked from the supply pipe 14 flows into the first chamber R1 of the dilute salt water tank 20, and When the concentration of the dilute salt water becomes high and the concentration C detected by the concentration sensor 23 becomes equal to or more than the water leak detection value Co + α, the electric control circuit 70 determines “YES” in step 144 and proceeds to steps 146 to 152. Proceed. In step 146, similarly to step 120, the electric pumps 28, 29, and 52 and the DC power supply 60 are switched to an inactive state, and the electromagnetic valves 12, 15, and 23 are switched to an off state. In step 148, the operation switch 71 is turned off by controlling the electromagnetic solenoid built in the operation switch 71. In step 150, the alarm 72 is controlled to generate an alarm sound, and in step 152, the display 73 is controlled to indicate that water is leaking in the supply pipe 14. After the processing of steps 146 to 152, the execution of the program is terminated by the processing of step 154. In this case, the above-described program control is not performed unless the power is newly turned on.
[0039]
As described above, in the electrolyzed water generating apparatus according to the above-described embodiment, even when the supply pipe 14 is damaged or leaks due to a poor connection with the electromagnetic valve 15 or the like, the concentrated salt water leaking from the supply pipe 14 Flows into the concave portion 20a1 of the lid 20a of the dilute salt water tank 20 via the outer periphery of the supply pipe 14, and flows into the first chamber R1 of the dilute salt water tank 20 through the drain hole 20a3. It does not leak. In this case, the peripheral edge of the concave portion 20a1 is further depressed, and the drainage hole 20a3 is provided in the depressed portion.
[0040]
Further, when the concentration C of the dilute salt water in the dilute salt water tank 20 becomes abnormally high due to the inflow of the concentrated salt water, the operation of the dilute salt water generation device is performed irrespective of the electrolyzed water generation state and the generation standby state of the electrolyzed water generation device. Stopped. In particular, even when the electrolyzed water generation device is in the electrolyzed water generation standby state and the concentration of the dilute salt water in the dilute salt water tank 20 tends to increase due to the inflow of the concentrated salt water, the operation of the device is stopped. Even when the apparatus shifts from the production standby state to the production state, abnormally high concentration of salt water is not electrolyzed in the electrolytic cell 30 and almost uniform electrolytic water is always produced in the electrolytic cell 30. Become. In addition, since the salt water having a high concentration is not electrolyzed in the electrolytic cell 20, deterioration of the electrodes 34 and 35 is avoided. Further, the salt S for producing the concentrated salt water is not wasted. In addition, when the generation of the electrolyzed water is stopped, the abnormality of the concentration of the dilute salt water is notified by the alarm device 72 and the display device 73, so that the user can visually and audibly recognize the water leakage of the supply pipe 14. The leak can be dealt with promptly.
[0041]
When such a water leak occurs, the diluted salt water tank 20 is divided into a first chamber R1 and a second chamber R2 in a state where the upper part thereof is communicated with a partition plate 21, and the concentrated salt water leaked from the supply pipe 14 is removed. After flowing into the first chamber R1 and the capacity of the first chamber R1 is small, the concentration of the dilute salt water in the first chamber R1 rapidly increases. On the other hand, the concentration sensor 24 for detecting the concentration used for detecting the water leakage is also housed in the first chamber R1 and provided near the drain hole 20a3, so that the determination of the water leakage can be made quickly. Done. Therefore, it is possible to shorten the time during which the heterogeneous electrolyzed water is generated in the electrolyzer 30, to minimize the deterioration of the electrodes 34 and 35 of the electrolyzer 30, and to cope with the above-mentioned leakage by the user. Can be done quickly.
[0042]
In addition, even when the concentration of the dilute salt water in the dilute salt water tank 20 is adjusted in step 142, the capacity of the first chamber R1 is small as described above, and water is supplied from outside via the water supply pipe 22 to the first chamber R1. Therefore, a decrease in the concentration of the dilute salt water is quickly detected. Therefore, the rate of decrease in the concentration of the dilute salt water stored in the dilute salt water tank 20 is suppressed to a low level, and homogeneous electrolytic water is generated in the electrolytic tank 30.
[0043]
In the above-described embodiment, the first chamber R1 and the second chamber R2 communicate with each other above the partition plate 21. However, a communication port is provided at an intermediate portion or a lower portion of the partition plate 21, and the two chambers are provided. R1 and R2 may be communicated with each other at the middle or lower part of the partition plate 21.
[0044]
In the above embodiment, only the acidic ionized water electrolyzed in the electrolytic cell 30 is taken out and used. However, alkaline ionized water is also taken out and both electrolyzed waters of acidic ionized water and alkaline ionized water are used. You may make it. In this case, the alkaline ionized water tank 50 may be provided with a cock similar to the acidic ionized water tank 40 so that alkaline ionized water can be taken out of the alkaline ionized water tank 50 as needed. Further, in this case, the alkaline ionized water tank 50 is also provided with a water level sensor similar to that of the acidic ionized water tank 40, and the generation state and the generation standby state of the electrolyzed water generation device are set to the respective water levels of both tanks 40, 50. The switching may be controlled in response.
[Brief description of the drawings]
FIG. 1 is an overall schematic diagram of an electrolyzed water generation device according to an embodiment of the present invention.
FIG. 2A is a longitudinal sectional view of the diluted salt water tank of FIG. 1, and FIG. 2B is a plan view of the tank.
FIG. 3 is a flowchart showing a first half of a program executed by the electric control circuit (microcomputer) of FIG. 1;
FIG. 4 is a flowchart showing a latter half of the program.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Concentrated salt water tank, 11 ... Water supply pipe, 12 ... Electromagnetic valve, 13 ... Water level sensor, 14 ... Supply pipe, 15 ... Electromagnetic valve, 20 ... Dilute salt water tank, 20a ... Lid, 20a1 ... Depression, 20a3 ... Drain hole , 21 ... partition plate, 22 ... water supply pipe, 23 ... electromagnetic valve, 24 ... concentration sensor, 25 ... water level sensor, 27 ... supply pipe, 29 ... electric pump, 30 ... electrolytic cell, 40 ... acid ion water tank, 50 ... Alkaline ionized water tank, 60 DC power supply, 70 Electric control circuit (microcomputer), 71 Operation switch, 72 Alarm, 73 Display.

Claims (4)

A dilute salt water tank disposed below the concentrated salt water tank, and an electromagnetic valve connected to an upper end of the concentrated salt water tank, a lower end thereof connected to a lid covering an upper surface of the dilute salt water tank, and interposed at an intermediate portion thereof are opened. A connection pipe for supplying the concentrated salt water stored in the concentrated salt water tank to the diluted salt water tank when the tank is placed, water supply means for supplying fresh water from an external water supply to the diluted salt water tank, substantially together kept constant, dilute brine that has been detected by the concentration sensor provided in the dilute brine tank water level of the rare salt in the dilute brine tank by controlling the water supply means in response to the water level detected by the water level sensor and control means to maintain the concentration of dilute brine in response to a concentration in the dilute brine tank by controlling the opening and closing of the electromagnetic valve substantially constant, electrolytic water by electrolysis of dilute brine supplied from the rare brine tank Generate In the apparatus for producing electrolyzed water comprising an electrolytic bath,
A portion of the lid of the dilute salt water tank around which the lower end of the connection pipe is connected is connected to a damaged portion of the connection pipe, the concentrated salt water leaking from the interposition point of the electromagnetic valve, etc., is stored by flowing down. that provided with a recess, electrolytic water generation apparatus, characterized in that a through hole that opens to the interior of the rare salt water tank in the same recess. Producing electrolyzed water according to claim 1, characterized in that a leak detector for detecting water leakage of the connection pipe when the concentration of dilute brine that has been detected by the density sensor is higher than the low concentrations of the constant Tokoro apparatus. Electrolytic water generation apparatus according to pre SL through hole to claim 2, characterized in that provided in the vicinity of the density sensor. Before in a state where the inside was both liquid chambers thereof is partitioned into two liquid chambers were partially communicated in the bottom surface of KiNozomi brine tank erected and by the partition plate the noble brine tank, hand fluid chamber electrolytic water generation apparatus according to claim 2, wherein the through hole above the same liquid chamber while storing is characterized in that so as to position the concentration sensor.

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