WO2012132600A1

WO2012132600A1 - Electrolyzed water generation device

Info

Publication number: WO2012132600A1
Application number: PCT/JP2012/053594
Authority: WO
Inventors: 久徳白水
Original assignee: パナソニック株式会社
Priority date: 2011-03-25
Filing date: 2012-02-16
Publication date: 2012-10-04
Also published as: TW201238911A; JP2012200683A

Abstract

The present invention is provided with a merging part for causing a portion of acidic ionized water generated by an anode to merge inside an electrolytic bath, with alkaline ionized water generated by a cathode. This electrolyzed water generation device is capable of increasing the amount of dissolved hydrogen without causing the pH value of the alkaline ionized water used for drinking to excessively increase.

Description

Electrolyzed water generator

The present invention relates to an electrolyzed water generating apparatus that electrolyzes raw water to generate alkaline ionized water and acidic ionized water, and in particular, the amount of dissolved hydrogen can be reduced without excessively increasing the pH value of alkaline ionized water used for drinking. The present invention relates to an electrolyzed water generating device that can be enhanced.

With the recent increase in interest in safe water and health, electrolyzed water generators that generate alkaline ionized water and acidic ionized water by electrolyzing raw water such as tap water in an electrolytic cell are widely used in general households. It has become widespread. This electrolyzed water generator is configured to discharge one of alkaline ionized water and acidic ionized water so that they can be used from the water discharge channel, and to discharge the other from the water discharge channel. Will be served.

Also, recently, there are research reports that drinking water with a high amount of dissolved hydrogen is effective in preventing and improving Parkinson's disease, metabolic syndrome, lifestyle-related diseases, and the like. Therefore, an electrolyzed water generating apparatus capable of generating alkaline ionized water that can increase the amount of dissolved hydrogen is desired. However, the amount of dissolved hydrogen depends on the strength of electrolysis in the electrolytic cell. For this reason, even if it is going to produce | generate alkali ion water with much dissolved hydrogen amount, in order to satisfy less than pH10 suitable for drinking from pH value becoming high, it was necessary to suppress the intensity | strength of electrolysis to some extent. This makes it difficult to increase the amount of dissolved hydrogen.

Therefore, there is known a water conditioner that includes an electrolytic cell in which an anode and a cathode are arranged to face each other, and can electrolyze raw water that has flowed into the electrolytic cell to take in acidic water and alkaline water (for example, Patent Document 1).

The water conditioner disclosed in Patent Document 1 is a flow that distributes raw water to a raw water bypass channel and an electrolytic cell at a predetermined ratio in order to optimize drinking of strongly alkaline water having a pH of 10 or more generated by the electrolytic cell. A path switching valve is provided.

JP 2009-160503 A

However, in the configuration of the above background art, a flow path switching valve is provided outside the electrolytic cell, and the raw water is distributed to the raw water bypass flow channel and the electrolytic cell through the flow path switching valve at a predetermined ratio. . For this reason, since a separate flow path switching valve is required, there is a problem that the initial installation cost is high and the electrolyzed water generation system is enlarged. In addition, pipe connection between the electrolytic cell and the flow path switching valve is required, and there is also a situation in which the risk of water leakage from the O-ring and the packing part at the pipe connection part increases.

The present invention solves such a conventional problem, and can generate alkaline ionized water with a large amount of dissolved hydrogen without excessively increasing the pH value of discharged water with a simple structure and an inexpensive configuration. It aims at providing an electrolyzed water generating device.

In order to solve the above-mentioned problems, the present invention generates alkaline ionized water and acidic ionized water by electrolyzing raw water composed of a cathode chamber having a cathode and an anode chamber having an anode. An electrolyzer, and a controller that controls the electrolysis strength of the electrolyzer, and is connected to the cathode chamber and discharges the alkaline ionized water generated in the cathode chamber; and the anode chamber And a drainage channel for draining the acidic ionic water generated in the anode chamber, wherein the acidic ionic water generated in the anode is disposed in the electrolytic cell. A merging section is provided for merging a part of the ionic water with the alkaline ion water generated at the cathode.

In addition, it is preferable that the merging portion is provided on the downstream side (that is, the drainage channel side) in the electrolytic cell.

Further, it is preferable that the merging portion is provided with an on-off valve capable of adjusting the flow rate.

Moreover, it is preferable that the confluence part has a removing means for removing residual chlorine in the acidic ion water.

It is preferable that at least the drainage channel is provided with the on-off valve capable of adjusting the flow rate.

In the present invention, by providing a confluence portion for joining a part of the acidic ionic water generated at the anode to the alkaline ionic water generated at the cathode inside the electrolytic cell, with a simple structure and inexpensive configuration, Alkali ion water with a large amount of dissolved hydrogen can be generated without excessively increasing the pH value of the discharged water.

It is a schematic structure figure of the electrolyzed water generating device in one embodiment of the present invention. It is a schematic structure figure of the electrolyzed water generating device in other embodiments of the present invention. It is an external appearance perspective view of the anode chamber in an electrolytic cell same as the above. It is an external appearance perspective view of the other example of the anode chamber in an electrolytic cell same as the above.

Hereinafter, embodiments of the electrolyzed water generating device will be described in detail in the order of (Example 1) and (Example 2) with reference to the drawings.
Example 1
FIG. 1 is a schematic structural diagram of Example 1 of the electrolyzed water generating apparatus.

As shown in FIG. 1, a raw water pipe 1 such as tap water is connected to a water purification section 4 of a main body section 3 through a faucet 2. The water purification unit 4 includes an activated carbon that adsorbs residual chlorine, trihalomethane, mold odor, and the like in raw water, and a hollow fiber membrane that accurately removes general bacteria and impurities. The water filtered by the water purification unit 4 flows from the introduction path 5a to the flow rate detection unit 6. The flow rate detection unit 6 confirms the water flow and gives a control instruction to the control unit 25. The water filtered by the water purification unit 4 is diverted to the

introduction paths

5b and 5c through the flow rate detection unit 6. The introduction path 5 c is provided with a calcium supply section throttle 7 and a calcium supply section 8. The calcium supply throttle 7 adjusts the flow rate of the flow through the introduction path 5c. The calcium supply unit 8 imparts calcium ions such as calcium glycerophosphate and calcium lactate to the raw water to increase the electrical conductivity of the raw water. The introduction path 5c merges with the introduction path 5b. The downstream of the introduction path 5b communicates with the first electrode chamber introduction path 9 via the introduction path 5d, and further communicates with the first electrode chamber 12a of the electrolytic cell 12. A second electrode chamber introduction path 10 is branched to the introduction path 5d. The second electrode chamber introduction path 10 enters the second electrode chamber 12b of the electrolytic cell 12 through a second electrode chamber restriction 11 that adjusts the flow rate of the second electrode chamber introduction path 10. Communicate.

The electrolytic cell 12 electrolyzes the filtered water to generate alkaline ionized water and acidic ionized water, and the first electrode chamber 12a and the second electrode chamber 12a separated by the

diaphragms

13a and 13b are contained therein. Electrode chamber 12b. In the first electrode chamber 12a, the first electrode

chamber electrode plates

14a, 14b are arranged to face each other. A second electrode chamber electrode plate 15 is disposed in the second electrode chamber 12b.

A junction 16 having an acidic ion water introduction function is provided on the downstream side in the second electrode chamber 12b. The junction 16 is arranged facing the downstream side in the first electrode chamber 12a. The junction 16 introduces a part of the ionic water generated in the second electrode chamber 12b (acidic ionic water when the second electrode chamber electrode plate 15 is an anode) into the first electrode chamber 12a. Work. The downstream of the junction 16 is connected to

drains

18a and 18b for discharging water from the second electrode chamber 12b (or acidic ion water when the second electrode chamber electrode plate 15 is an anode). In the middle of the

drainage channels

18a and 18b, a drainage channel restrictor 19 for limiting the flow rate flowing through the drainage channel 18a is interposed.

It should be noted that the

drainage channels

18a and 18b will be referred to as the drainage channel 18 when collectively described.

A water discharge path 17 is connected downstream of the first electrode chamber 12a. The water discharge channel 17 discharges water in the first electrode chamber 12a (alkaline ion water when the first electrode

chamber electrode plates

14a and 14b are cathodes) as drinking water. A water discharge bypass 20 is branched and connected upstream of the water discharge 17. The water discharge bypass path 20 is connected to the pH sensor unit 22 via a water discharge bypass path throttle 21 that restricts the flow rate. The pH sensor unit 22 measures the pH value of alkaline ionized water that flows out from the first electrode chamber 12a into the water discharge bypass 20. The downstream side of the water discharge bypass channel 20 joins the drainage channel 18b.

The control unit 25 is configured by a microcomputer that supplies the electrolytic cell 12 with electrolysis energy for performing operation control and electrolysis of the main body unit 3. In the figure, numeral 23 is a power plug, and numeral 24 is a power supply unit for converting AC power from the power plug 23 into DC power. An operation display unit 26 is used by the user to select and set the quality of alkaline ionized water, acidic ionized water, purified water, pH strength, and various functions.

FIG. 3 is a detailed view of the first embodiment of the junction 16 and the second electrode chamber 12b.

In the same figure, a confluence portion restriction 28 is provided in the confluence portion 16. The constricting portion restriction 28 is used when the ion water generated in the second electrode chamber 12b (acidic ion water when the second electrode chamber electrode plate 15 is an anode) is introduced into the first electrode chamber 12a. Used for flow rate adjustment.

With respect to the electrolyzed water generating apparatus of the first embodiment having the above-described configuration, the operation when generating alkaline ionized water will be described.

The user selects a desired water quality mode and pH intensity such as alkaline ion water generation mode, acid ion water generation mode or water purification mode by operating predetermined buttons on the operation display unit 26, and opens the faucet 2 to pass through. Do water. The raw water introduced from the faucet 2 is subjected to removal of residual chlorine, trihalomethane, musty odor, general bacteria, and other impurities in the raw water in the water purification unit 4, and passes through the flow rate detection unit 6 through the introduction path 5a. Thereafter, a part of the raw water is branched to the introduction path 5 c and the flow rate is limited to an appropriate amount by the calcium supply throttle 7. Then, calcium glycerophosphate, calcium lactate and the like are dissolved in the calcium supply unit 8 and treated with water that is easily electrolyzed, and then merges with the introduction path 5b again. The combined raw water passes through the first electrode chamber introduction path 9 and the second electrode chamber introduction path 10 provided exclusively for the first electrode chamber 12a and the second electrode chamber 12b in the electrolytic cell 12, respectively. Then, it is introduced into each electrode chamber. Here, the second electrode chamber restriction 11 is provided to adjust the internal pressure balance between the first electrode chamber 12a and the second electrode chamber 12b. That is, it passes through the first electrode chamber introduction path 9 and the second electrode chamber introduction path 10 with respect to the flow rate ratio passing through the outlet side of the first electrode chamber 12a and the outlet side of the second electrode chamber 12b. It can be adjusted by changing the flow rate ratio. In the first embodiment, [(the outlet side flow rate of the first electrode chamber 12a) / (the outlet side flow rate of the second electrode chamber 12b)> (the flow rate of the first electrode chamber introduction passage 9) / (second The flow rate of the electrode chamber introduction path 10) is adjusted in advance. Here, the internal pressure of the second electrode chamber 12b is higher than the internal pressure of the first electrode chamber 12a, and the water in the second electrode chamber 12b tends to flow into the first electrode chamber 12a. ing.

On the other hand, AC 100 V is supplied from the power plug 23, and energy required for electrolysis is generated by the transformer in the power supply unit 24 and the control DC power supply. Then, energy required for electrolysis is supplied to the first electrode

chamber electrode plates

14 a and 14 b and the second electrode chamber electrode plate 15 of the electrolytic cell 12 through the control unit 25. At this time, assuming that the electrode to which a positive voltage is applied is an anode and the electrode to which a negative voltage is applied is a cathode, an anode chamber and a cathode chamber partitioned by

diaphragms

13a and 13b are formed in the electrolytic cell 12. In the alkaline ion water generation mode, the first electrode

chamber electrode plates

14a and 14b serve as cathodes, and the second electrode chamber electrode plate 15 serves as an anode.

Now, when the water flow is started, the control unit 25 reads the output signal from the flow rate detection unit 6, and when the flow rate level flowing per unit time exceeds a certain amount, the control unit 25 determines that this state is underwater. At this time, the control unit 25 supplies predetermined electrolysis energy to the electrolytic cell 12 under the electrolysis conditions corresponding to the water quality mode and pH intensity that have already been selected. In the alkaline ionized water generation mode, the first electrode

chamber electrode plates

14a and 14b serve as cathodes, and the second electrode chamber electrode plate 15 serves as an anode. At this time, alkaline ionized water is discharged from the water discharge channel 17 and acidic ionized water is discharged from the drainage channel 18a. At this time, the internal pressure of the second electrode chamber 12b is adjusted by the second electrode chamber aperture 11 so as to be higher than the internal pressure of the first electrode chamber 12a. Part of the acidic ionic water generated in the second electrode chamber 12 b merges with the alkaline ionic water generated in the first electrode chamber 12 a through the merging portion restriction 28 provided in the merging portion 16. The pH value will be lowered.

In addition, [(outlet side flow rate of the first electrode chamber 12a) / (outlet side flow rate of the second electrode chamber 12b)> (flow rate of the first electrode chamber introduction path 9) / (for the second electrode chamber) If the structure satisfies the relational expression of the flow rate of the introduction path 10)], the position and number of the second electrode chamber restrictors 11 can be changed. For example, it may be provided in the middle of the first electrode chamber introduction path 9, the water discharge path 17, the

drainage path

18a or 18b, or may be provided at a plurality of locations.

The junction 16 may be provided on the upstream side of the water flow in the electrolytic cell 12 or on the downstream side. In addition, in order to further lower the pH value of the alkaline ionized water generated in the first electrode chamber 12a, it is more downstream in the electrolytic cell 12 where the acidity in the second electrode chamber 12b is the highest. It is effective. Further, the position of the confluence portion restriction 28 may be an upper portion of the confluence portion 16 or a side portion.

Thus, the alkaline ionized water whose pH value has been pushed down by the converging section throttle 28 is discharged from the water discharge channel 17 and used for drinking. A part of the alkaline ionized water is branched into the water discharge bypass passage 20, and the flow rate is limited to an appropriate amount by the water discharge bypass passage restrictor 21, and introduced into the pH sensor unit 22 to measure the pH value. Here, the control unit 25 reads the output signal from the pH sensor unit 22 and performs control to sequentially adjust the energy of electrolysis so that the pH intensity already set in the operation display unit 26 is obtained. Thereafter, the alkaline ionized water that has passed through the pH sensor unit 22 joins the drainage channel 18b and is then discharged as drainage.

At this time, in order to increase the amount of dissolved hydrogen in the alkaline ionized water as much as possible, it is preferable to adjust the electrolysis energy so that the pH value is as high as possible within a range not exceeding pH 10. In this case, the acidic ion water having higher acidity can be merged with the alkaline ion water generated in the first electrode chamber 12a when the merge portion 16 is on the upstream side of the electrolytic cell 12. And in order to make the pH value of the alkali ion water after joining the same, it becomes possible to supply more energy of electrolysis. As a result, the amount of hydrogen generated in the first electrode chamber 12a increases, and it becomes possible to generate alkaline ionized water with a large amount of dissolved hydrogen.

Thereafter, when the flow rate level flowing per unit time falls below a certain amount, this state is determined to be water stop, and the supply of electrolysis energy to the electrolytic cell 12 is terminated. At this time, a relatively positive voltage is applied to the first electrode

chamber electrode plates

14a and 14b and a negative voltage is applied to the second electrode chamber electrode plate 15 for a certain time after the water stoppage. Thereby, the scales such as calcium adhering to the first electrode

chamber electrode plates

14a and 14b are washed away.

As described above, according to the first embodiment, the merging portion 16 is accommodated in the electrolytic cell 12, and a part of the acidic ion water generated at the anode through the merging portion 16 is replaced with the alkali generated at the cathode. It was made to merge with ion water. Therefore, it is not necessary to connect a flow path switching valve to the outside of the electrolytic cell as in the prior art, and the cost can be kept low. Furthermore, it is possible to suppress risks such as water leakage from the O-ring and the packing part at the pipe connection part. As a result, it is easy to make the electrolyzed water generation system compact with a simple structure and an inexpensive configuration.

Moreover, since the junction part 16 is arrange | positioned in the downstream (namely, the drainage channel 18a side) in the electrolytic cell 12, it joins the acidic ion water with higher acidity to the alkaline ion water produced | generated by the cathode. Can do. Moreover, it is possible to adjust the pH value of the alkaline ionized water that is consumed by the pH sensor unit 22 while confirming the pH intensity displayed on the operation display unit 26. As a result, it is possible to efficiently generate alkaline ionized water with a large amount of dissolved hydrogen without excessively increasing the pH value of the discharged water.

As an example of the merging portion 16, a through hole is formed in a part of the

diaphragms

13 a and 13 b separating the second electrode chamber 12 b, and the size of the through hole is adjusted by the merging portion restrictor 28. May be.
(Example 2)
In the second embodiment, the same reference numerals as those in the first embodiment are assigned to components having the same configuration and effects as those in the first embodiment, and the description of the first embodiment is used for the detailed description thereof.

The second embodiment is different from the first embodiment in that the junction 16 in the electrolytic cell 12 is provided with an on-off valve capable of adjusting the flow rate and a residual chlorine removing means, and at least openable / closable on the acidic ion water drainage channel. It is a place with a valve. Based on the above differences, the operation of the electrolyzed water generating apparatus according to the second embodiment will be described with reference to FIGS. 2 and 4.

FIG. 2 is a schematic structural diagram of the electrolyzed water generating apparatus of Example 2.

In the figure, an opening / closing valve 27 is provided in the middle of the drainage channel 18a to arbitrarily adjust the flow rate flowing through the drainage channel 18a according to a command from the control unit 25. Reference numeral 33 denotes a signal line for inputting a control signal from the control unit 25 to the on-off valve 27.

FIG. 4 is a detailed view of the second embodiment of the junction 16 and the second electrode chamber 12b.

In the figure, the merging portion 16 includes an on-off valve 30 including an inner cylinder 30a and an outer cylinder 30b. The inner cylinder 30a is disposed immediately after the second electrode chamber 12b. Residual chlorine removing means 29 is accommodated in the inner cylinder 30a. This residual chlorine removing means 29 removes residual chlorine, trihalomethane, and the like of water introduced from the second electrode chamber 12b (FIG. 2) to the first electrode chamber 12a (FIG. 2) via the junction 16. Is. The inner cylinder 30a is accommodated in the outer cylinder 30b. The inner cylinder 30a is provided with a flow rate adjusting hole 31a, and the outer cylinder 30b is provided with a flow rate adjusting hole 31b. A stepping motor 32 that can be rotated and stopped to an arbitrary position according to a command from the control unit 25 is connected to the inner cylinder 30a. 2 is a signal line for inputting a control signal from the control unit 25 to the stepping motor 32.

In FIG. 2, the user selects a desired water quality mode and pH intensity such as an alkaline ionized water generation mode, an acidic ionized water generation mode or a purified water mode by operating predetermined buttons on the operation display unit 26, and selects the faucet 2. Open and pass water. The raw water introduced from the faucet 2 is subjected to removal of residual chlorine, trihalomethane, musty odor, general bacteria, and other impurities in the raw water in the water purification unit 4, and passes through the flow rate detection unit 6 through the introduction path 5a. After that, a part of the raw water is branched to the introduction path 5c side, the flow rate is restricted to an appropriate amount by the calcium supply unit restrictor 7, and the calcium supply unit 8 dissolves calcium glycerophosphate, calcium lactate, etc. To be processed. Thereafter, it merges with the introduction path 5b again. The combined raw water passes through the first electrode chamber introduction path 9 and the second electrode chamber introduction path 10 provided exclusively for the first electrode chamber 12a and the second electrode chamber 12b in the electrolytic cell 12, respectively. Then, it is introduced into each electrode chamber. Here, the second electrode chamber restriction 11 is provided to adjust the internal pressure balance between the first electrode chamber 12a and the second electrode chamber 12b. Then, the first electrode chamber introduction passage 9 and the second electrode chamber introduction passage 10 are passed with respect to the flow rate ratio passing through the outlet side of the first electrode chamber 12a and the outlet side of the second electrode chamber 12b. It can be adjusted by changing the flow rate ratio. In this embodiment, [(outlet side flow rate of the first electrode chamber 12a) / (outlet side flow rate of the second electrode chamber 12b)> (flow rate of the first electrode chamber introduction passage 9) / (second electrode). The flow rate of the room introduction path 10) is adjusted in advance. Here, the internal pressure of the second electrode chamber 12b is higher than the internal pressure of the first electrode chamber 12a, and the water in the second electrode chamber 12b tends to flow into the first electrode chamber 12a. ing. On the other hand, 100 VAC is supplied from the power plug 23, and energy necessary for electrolysis is generated by the transformer in the power supply unit 24 and the control DC power supply. Then, energy necessary for electrolysis is supplied to the first electrode

chamber electrode plates

diaphragms

chamber electrode plates

14a and 14b serve as cathodes, and the second electrode chamber electrode plate 15 serves as an anode. Alkaline ion water is discharged from the water discharge channel 17 and acidic ion water is discharged from the drain channel 18a. At this time, the internal pressure of the second electrode chamber 12b is adjusted by the second electrode chamber restriction 11 so as to be higher than the internal pressure of the first electrode chamber 12a. Part of the acidic ionic water generated in the second electrode chamber 12 b passes through the residual chlorine removing means 29. At this time, residual chlorine, trihalomethane, etc. contained in the raw water before being electrolyzed, residual chlorine, etc. resulting from chlorine gas generated at the anode are removed. Thereafter, it merges with the alkaline ionized water generated in the first electrode chamber 12a through the opening formed at the rotational position of the flow

rate adjusting holes

31a and 31b provided in the inner cylinder 30a and the outer cylinder 30b of the merging section 16. . As a result, the pH value of the alkaline ionized water is lowered.

[(Outlet side flow rate of first electrode chamber 12a) / (Outlet side flow rate of second electrode chamber 12b)> (Flow rate of first electrode chamber introduction passage 9) / (For second electrode chamber) If the structure satisfies the relational expression of the flow rate of the introduction passage 10)], the position and number of the second electrode chamber restrictors 11 can be changed. That is, you may provide in the middle of the 1st electrode chamber introduction path 9, the water discharge path 17, and the

drainage path

18a or 18b, and you may provide in several places.

The junction 16 may be provided on the upstream side of the water flow in the electrolytic cell 12 or on the downstream side. In addition, in order to further lower the pH value of the alkaline ionized water generated in the first electrode chamber 12a, it is more downstream in the electrolytic cell 12 where the acidity in the second electrode chamber 12b is the highest. It is effective.

Further, as the specific configuration of the residual chlorine removing means 29, activated carbon, ion exchange resin, ozone generator, etc. can be applied. Further, as the structure of the merging portion 16, flow

rate adjusting holes

31a and 31b are provided in the cylindrical inner cylinder 30a and the outer cylinder 30b, respectively. The inner cylinder 30a is connected to a stepping motor 32 to rotate and stop, and the portion where the respective flow

rate adjusting holes

31a and 31b overlap is used as an effective hole, and can function as the on-off valve 30 depending on the stop position of the inner cylinder 30a. . In addition, when it is set as the structure which does not use the stepping motor 32, you may connect the knob which a user can rotate to the inner cylinder 30a.

The alkaline ionized water whose pH value has been pushed down in this way is discharged from the water discharge channel 17 and used for drinking. A part of the alkaline ionized water is branched into the water discharge bypass passage 20, and the flow rate is limited to an appropriate amount by the water discharge bypass passage restrictor 21, and introduced into the pH sensor unit 22 to measure the pH value. Here, the control unit 25 reads the output signal from the pH sensor unit 22 and performs control to sequentially adjust the energy of electrolysis so that the pH intensity already set in the operation display unit 26 is obtained. Thereafter, the alkaline ionized water that has passed through the pH sensor unit 22 joins the drainage channel 18b and is then discharged as drainage.

At this time, in order to increase the amount of dissolved hydrogen in the alkaline ionized water as much as possible, it is preferable to adjust the electrolysis energy so that the pH value is as high as possible within a range not exceeding pH 10. Alternatively, the pH value is measured by the pH sensor unit 22 with the electrolysis energy maximized. At this time, if the pH is 10 or more, the overlapping portion of the flow

rate adjusting holes

31a and 31b of the merging portion 16 is gradually increased until the drinking pH value is reached. As a result, the amount of acidic ion water flowing from the second electrode chamber 12b to the first electrode chamber 12a can be increased.

Further, if the on-off valve 27 is controlled within the set pH value to minimize the amount of drainage from the drainage channel 18b, the water-saving effect can be enhanced. Note that, as another method for minimizing the amount of drainage from the drainage channel 18b by controlling the on-off valve 27, it is possible to control the water passage diameter of the water discharge channel 17 to increase it.

chamber electrode plates

14a and 14b and a negative voltage is applied to the second electrode chamber electrode plate 15 for a certain time after the water stoppage. As a result, scales such as calcium adhering to the first electrode

chamber electrode plates

14a and 14b are washed away.

As described above, according to the second embodiment, the merging portion 16 in the electrolytic cell 12 is configured by the on-off valve 30 (inner cylinder 30a, outer cylinder 30b) capable of adjusting the flow rate. Thereby, an appropriate amount of acidic ionic water according to the pH value of the discharged water can be merged with the alkaline ionized water, and the alkaline ionized water having the largest amount of dissolved hydrogen in the pH value range suitable for drinking can be generated. It becomes possible. Further, since the joining portion 16 is provided with a residual chlorine removing means 29, residual chlorine, trihalomethane, etc. contained in the raw water before electrolysis are removed and residual chlorine caused by chlorine gas generated at the anode is removed. It becomes easy to do. Thereby, the produced alkaline ionized water can be made delicious and safe. Furthermore, since the acidic ion water drainage channel 18a is provided with the on-off valve 27 capable of adjusting the flow rate, the amount of drainage from the drainage channel 18a can be minimized according to the pH value of the discharged water. As a result, the water saving effect can be increased.

As described above, the electrolyzed water generator shown in FIGS. 1 and 2 includes the electrolyzer 12 and the controller 25. The electrolytic cell 12 has a cathode chamber and an anode chamber. The cathode chamber has a cathode. The anode chamber has an anode. The electrolytic cell 12 electrolyzes the passed raw water to generate alkali ion water and acidic ion water. More specifically, the electrolytic cell 12 electrolyzes the raw water that has been passed. Thereby, alkaline ionized water is generated in the cathode chamber, and acidic ionized water is generated in the anode chamber. The control unit 25 controls the electrolytic strength of the electrolytic cell 12. The electrolyzed water generating device includes a water discharge channel 17 and a drain channel 18. The water discharge path 17 is connected to the cathode chamber, whereby alkali ion water generated in the cathode chamber is discharged from the water discharge path 17. The drainage channel 18 is connected to the anode chamber, whereby the acidic ion water generated in the anode chamber is discharged via the drainage channel 18. The electrolytic cell 12 has a merging portion 16 therein. The junction 16 is provided to join part of the acidic ionic water generated at the anode and the alkaline ionic water generated at the cathode.

Further, the junction 16 is provided on the downstream side in the electrolytic cell 12. The junction 16 is located downstream of the cathode in the electrolytic cell 12. Further, the junction 16 is located downstream of the anode in the electrolytic cell 12.

The anode chamber is separated from the cathode chamber by the

diaphragms

13a and 13b.

Further, the junction 16 is located between the water discharge channel 17 and the anode. Moreover, the junction 16 is located between the water discharge channel 17 and the cathode.

Moreover, the drainage channel 18 has a first end and a second end. The first end of the drainage channel 18 is directly connected to the anode chamber.

Moreover, the electrolyzed water generating device further has a water discharge bypass 20. The water discharge bypass channel 20 is arranged so that the liquid flowing into the water discharge channel 17 flows.

In addition, the water discharge bypass 20 has a first end and a second end. The first end of the water discharge bypass path 20 is connected to the water discharge path 17 so that the first end of the water discharge bypass path 20 is located downstream of the junction 16. Thereby, the liquid flowing into the water discharge path 17 flows into the water discharge bypass path 20.

The second end of the water discharge bypass 20 is connected to the drain 18.

Further, the water discharge bypass 20 has a pH sensor unit 22.

Further, the pH sensor unit 22 is configured to measure the hydrogen ion index of the liquid flowing through the water discharge bypass 20.

It should be noted that the sensor in the embodiment is not limited to the pH sensor unit 22. That is, the sensor is not limited to the sensor that measures the hydrogen ion index of the liquid flowing through the water discharge bypass 20. In other words, the sensor only needs to measure information indicating the hydrogen ion index of the liquid flowing through the water discharge bypass 20. In other words, the sensor may be configured to measure information corresponding to the hydrogen ion index of the liquid flowing through the water discharge bypass 20.

Further, the drainage channel 18 further includes a drainage channel throttle 19.

Note that the second end of the drainage channel 18 is defined by a drainage port.

Further, the second end of the water discharge bypass 20 is connected to the drain 18 so as to be positioned between the drain 19 and the drain.

In addition, the water discharge bypass 20 has a water discharge bypass throttle 21.

Moreover, the electrolyzed water generating device further includes a flow rate detection unit 6. The flow rate detection unit 6 is configured to detect the flow rate of the liquid flowing into the electrolytic cell 12.

Also, the anode chamber is configured to receive water through the introduction path. The introduction path has an anode chamber throttle.

More specifically, the anode chamber is configured to receive the liquid via the anode chamber introduction path. The cathode chamber is configured to receive liquid via the cathode chamber introduction path. The anode chamber introduction path is arranged independently of the cathode chamber introduction path. The anode chamber introduction passage has an anode chamber throttle.

In addition, the electrolyzed water generating device has an introduction path. The introduction path has an introduction path for the anode chamber and an introduction path for the cathode chamber.

The anode chamber is set so that the internal pressure is higher than that of the cathode chamber.

The anode chamber, the cathode chamber, the anode chamber introduction path, and the cathode chamber introduction path are set to satisfy the following relational expression.
(Outlet side flow rate of the first electrode chamber 12a) / (Outlet side flow rate of the second electrode chamber 12b)> (Flow rate of the first electrode chamber introduction path 9) / (Second electrode chamber introduction path 10) Flow rate)
As shown in FIGS. 2 and 4, the merging section 16 includes an on-off valve 30 that can adjust the flow rate.

Further, the drainage channel 18 is provided with an on-off valve 27 capable of adjusting the flow rate.

By adopting such a configuration, it is possible to provide an electrolyzed water generator capable of generating alkaline ionized water with a simple structure.

DESCRIPTION OF SYMBOLS 1 Raw water pipe 2 Water faucet 3 Main body part 4

Water purifying part

5a, 5b, 5c, 5d Introduction path 6 Flow rate detection part 7 Calcium supply part throttling 8 Calcium supply part 9 First electrode room introduction path 10 Second electrode chamber Introductory path 11 Second electrode chamber restriction 12 Electrolyzer 12a First electrode chamber 12b

Second electrode chamber

13a,

13b Diaphragm

14a, 14b First electrode chamber electrode plate 15 Second electrode chamber electrode plate DESCRIPTION OF SYMBOLS 16 Junction part 17

Drainage channel

18a, 18b Drainage channel 19 Drainage channel throttling 20 Drainage bypass channel 21 Drainage bypass channel throttling 22 pH sensor unit 23 Power plug 24 Power supply unit 25 Control unit 26 Operation display unit 27 Open / close valve 28 For merge unit Restriction 29 Residual chlorine removing means 30a Inner cylinder

30b Outer cylinder

31a, 31b Flow rate adjusting hole 32

Stepping motor

33, 34 Signal line

Claims

An electrolytic cell that is composed of a cathode chamber having a cathode and an anode chamber having an anode and electrolyzes raw water that has been passed through to generate alkaline ionized water and acidic ionized water, and controls the electrolytic strength of the electrolytic cell And a water discharge channel for discharging the alkali ion water generated in the cathode chamber connected to the cathode chamber, and the acidic ion water generated in the anode chamber connected to the anode chamber. And a drainage channel for draining water, wherein the alkaline ionized water generated at the cathode is part of the acidic ionized water generated at the anode in the electrolytic cell. An electrolyzed water generating apparatus comprising a merging portion for merging with the water.
The electrolyzed water generating apparatus according to claim 1, wherein the merging portion is provided on the downstream side in the electrolytic cell.
The electrolyzed water generating device according to claim 1, wherein the merging portion includes an on-off valve capable of adjusting a flow rate.
The electrolyzed water generating apparatus according to any one of claims 1 to 3, wherein the merging portion includes a removing unit that removes residual chlorine in the acidic ion water.
The electrolyzed water generating apparatus according to any one of claims 1 to 4, wherein the on-off valve capable of adjusting a flow rate is provided at least in the drainage channel.