Electrolyzed water generating device and electrolyzed water generating method

Abstract

To provide an electrolytic water generator capable of stably generating electrolytic water of any dissolved hydrogen concentration.SOLUTION: An electrolytic water generator 1 includes an electrolytic unit 3 for generating electrolytic water in which hydrogen is dissolved by electrolysis of supplied raw water, and a mixing part 7 for mixing the first electrolytic water generated by the electrolytic unit with the second electrolytic water or water with lower dissolved hydrogen concentration than the first electrolytic water at an arbitrary ratio.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electrolyzed water generating device and the like. [Background technology]

[0002] In recent years, dialysis treatment using electrolyzed water generated by an electrolyzed water generator has been attracting attention. For example, electrolyzed hydrogen water, which dissolves hydrogen gas generated by electrolyzing water, is known to contribute to reducing oxidative stress in patients (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-139475 Summary of the Invention [Problem to be solved by the invention]

[0004] In large hospitals, dialysis treatment is performed on many patients at the same time, so electrolyzed water generators are equipped with tanks for storing large amounts of electrolyzed water.

[0005] On the other hand, dialysis treatment is not usually performed all the time, and there are times when the electrolyzed water in the tank is not consumed. During such times, in order to prevent an excessive increase in the dissolved hydrogen concentration of the electrolyzed water, the circulation of the electrolyzed water between the tank and the electrolysis unit and the electrolysis in the electrolysis unit are stopped, and the electrolyzed water in the tank remains in the tank and stands by without electrolysis.

[0006] However, as the dissolved hydrogen gas escapes from the electrolytic water in the standby state, the dissolved hydrogen concentration gradually decreases.

[0007] The present invention has been devised in view of the above circumstances, and its main object is to provide an electrolytic water generating device etc. that can stably generate electrolytic water with any dissolved hydrogen concentration. [Means for solving the problem]

[0008] The present invention is an electrolyzed water generating device, an electrolysis unit for generating first electrolyzed water having hydrogen dissolved therein by electrolyzing the supplied raw water; The electrolytic solution further includes a mixing section for mixing the first electrolyzed water produced by the electrolysis unit with second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water at any mixing ratio. [Effects of the Invention]

[0009] The electrolyzed water generating device of the present invention has a mixing section that mixes the first electrolyzed water with second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water in any mixing ratio, thereby enabling stable production of electrolyzed water with any dissolved hydrogen concentration. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a block diagram showing a schematic configuration of an electrolyzed water generating device according to the present invention. [Figure 2] FIG. 2 is a diagram illustrating a configuration of the electrolysis unit in FIG. [Figure 3] 1 is a flowchart showing the outline of the procedure for producing electrolyzed water according to the present invention. [Figure 4] FIG. 2 is a block diagram showing a schematic configuration of a modified example of the electrolyzed water generating device of FIG. [Figure 5] FIG. 5 is a block diagram showing a schematic configuration of a modified example of the electrolyzed water generating device of FIG. [Figure 6] 4 is a flowchart showing the outline of the procedure of a modified example of the electrolyzed water production method of FIG. 3. [Figure 7] FIG. 6 is a block diagram showing a schematic configuration of a modified example of the electrolyzed water generating device of FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will now be described with reference to the drawings. 1 shows a schematic configuration of an electrolyzed water generator 1 of this embodiment. The electrolyzed water generator 1 is an apparatus for generating electrolyzed water, and is connected to a dialysis fluid preparation apparatus 100 for preparing dialysis fluid. The electrolyzed water generator 1 supplies the generated electrolyzed water to the dialysis fluid preparation apparatus 100.

[0012] The electrolyzed water generator 1 includes an electrolysis unit 3 for generating first electrolyzed water from supplied raw water, and a mixer 7 for mixing the first electrolyzed water generated by the electrolysis unit 3 with water in any ratio. The electrolyzed water generator 1 also includes a control unit 10 that controls the entire device.

[0013] The raw water supplied to the electrolysis unit 3 is generally tap water, but other sources such as well water and groundwater can also be used. The raw water is stored in a raw water tank (not shown), subjected to pretreatment such as softening, and then supplied to the electrolysis unit 3 via a water supply valve (not shown).

[0014] FIG. 2 shows an electrolysis unit 3. The electrolysis unit 3 includes an electrolytic cell 4. When the dialysis solution prepared by the dialysis solution preparation device 100 is to be used for dialysis of multiple patients, the electrolysis unit 3 is preferably configured to include multiple electrolytic cells 4, as shown in FIG. 2. The multiple electrolytic cells 4 are connected in parallel to each other as flow paths. By operating such multiple electrolytic cells 4 simultaneously, a large amount of electrolyzed water can be rapidly produced.

[0015] The electrolytic cell 4 includes an electrolysis chamber 40, an anode power supply 41, a cathode power supply 42, and a diaphragm 43. The electrolysis chamber 40 is divided by the diaphragm 43 into an anode chamber 40a in which the anode power supply 41 is disposed and a cathode chamber 40b in which the cathode power supply 42 is disposed. Raw water is supplied to the anode chamber 40a and the cathode chamber 40b, for example, via a bifurcated flow path (not shown).

[0016] The voltage applied between the anode power supply 41 and the cathode power supply 42 is controlled by the control unit 10. The control unit 10 feedback-controls the electrolysis voltage applied to the anode power supply 41 and the cathode power supply 42 so that the electrolysis current supplied to the anode power supply 41 and the cathode power supply 42 reaches a predetermined desired value. For example, if the electrolysis current is excessively high, the control unit 10 reduces the voltage, and if the electrolysis current is too low, the control unit 10 increases the voltage. This allows the electrolysis current to be appropriately controlled.

[0017] Of the electrolyzed water electrolyzed in the electrolytic cell 4, the electrolyzed water produced in the cathode chamber 40b is sent to the mixer 7 as cathode water. On the other hand, the electrolyzed water produced in the anode chamber 40a is discharged to the outside of the electrolyzed water production device 1 as anode water.

[0018] Water is electrolyzed in the electrolytic cell 4, whereby oxygen gas is generated in the anode chamber 40a and hydrogen gas is generated in the cathode chamber 40b.

[0019] The oxygen gas generated in the anode chamber 40a dissolves in the electrolyzed water in the anode chamber 40a, is taken out of the anode chamber 40a as anode water, and is discharged to the outside of the electrolyzed water generator 1.

[0020] The hydrogen gas generated in the cathode chamber 40b dissolves in the electrolyzed water in the cathode chamber 40b, is extracted from the cathode chamber 40b as cathode water, and is sent to the mixing section 7. That is, the cathode water sent from the cathode chamber 40b of the electrolysis unit 3 to the mixing section 7 is electrolyzed hydrogen water that has been electrolyzed in the cathode chamber 40b and has hydrogen gas dissolved therein.

[0021] When electrolyzed water is used for dialysis treatment, the electrolyzed water produced in the cathode chamber 40b is supplied to the mixer 7. When electrolyzed water is used for purposes other than dialysis treatment, the electrolyzed water produced in the anode chamber 40a may be supplied to the mixer 7.

[0022] As shown in Figure 1, the mixer 7 mixes water with electrolyzed water produced in the cathode chamber 40b of the electrolysis unit 3. The water mixed with the electrolyzed hydrogen water by the mixer 7 has a lower dissolved hydrogen concentration than the first electrolyzed water produced by the electrolysis unit 3. Therefore, this water is either electrolyzed second electrolyzed water or non-electrolyzed water.

[0023] In the present application, water simply referred to as "water" refers to second electrolyzed water or non-electrolyzed water having a lower dissolved hydrogen concentration than the first electrolyzed water produced by the electrolysis unit 3. Note that the second electrolyzed water may be electrolyzed water produced by the electrolysis unit 3 as long as it has a lower dissolved hydrogen concentration than the first electrolyzed water.

[0024] It is desirable that the second electrolyzed water to be mixed with the first electrolyzed water produced by the electrolysis unit 3 in the mixer 7 has a known dissolved hydrogen concentration. The dissolved hydrogen concentration of the electrolyzed water is determined by a sensor equivalent to the sensor 8 described below.

[0025] The mixer 7 mixes the first electrolyzed water produced by the electrolysis unit 3 with water at a desired ratio. In the electrolyzed water production device 1, the first electrolyzed water produced by the electrolysis unit 3 is diluted by mixing with water in the mixer 7, thereby producing electrolyzed water with a desired dissolved hydrogen concentration. Therefore, by changing the mixing ratio of the first electrolyzed water and water in the mixer 7, electrolyzed water with a desired dissolved hydrogen concentration can be stably produced.

[0026] The mixer 7 preferably includes a mixer valve capable of adjusting the mixing ratio between the first electrolyzed water generated by the electrolysis unit 3 and water. The mixing ratio of the mixer 7 is controlled by the control unit 10.

[0027] The control unit 10 controls each part of the electrolyzed water generating device 1. The control unit 10 has, for example, a CPU (Central Processing Unit) that executes various arithmetic processes, information processing, etc., and a memory that stores programs that control the operation of the CPU and various information. The various functions of the control unit 10 are realized by the CPU, memory, and programs.

[0028] It is desirable that a sensor 8 for measuring the dissolved hydrogen concentration of the mixed water mixed in the mixer 7 is provided in the flow path downstream of the mixer 7. The sensor 8 outputs an electrical signal corresponding to the measured dissolved hydrogen concentration to the control unit 10.

[0029] The control unit 10 determines the dissolved hydrogen concentration of the mixed water based on the electrical signal output from the sensor 8. Then, it feedback controls the mixing ratio of the mixer 7 so that the mixed water has a desired dissolved hydrogen concentration.

[0030] The controller 10 may be configured to control the electrolysis current of the electrolysis unit 3 based on the output from the sensor 8. In such a configuration, the dissolved hydrogen concentration of the first electrolyzed water produced by the electrolysis unit 3 and supplied to the mixer 7 is adjusted. For example, when the controller 10 controls the electrolysis current of the electrolysis unit 3 to be large, mixed water with a high dissolved hydrogen concentration is obtained, and when the controller 10 controls the electrolysis current of the electrolysis unit 3 to be small, the dissolved hydrogen concentration of the mixed water is adjusted more accurately.

[0031] A pump 82 for sending the mixed water to the dialysis fluid preparation device 100 is provided in the flow path 81 extending from the sensor 8 to the dialysis fluid preparation device 100 as required.

[0032] 3 shows the steps of an electrolyzed water production method 500 for producing electrolyzed water using the electrolyzed water production device 1. To carry out the electrolyzed water production method 500, it is preferable to apply the electrolyzed water production device 1, but the electrolyzed water production device 1 is not necessarily required as long as the following steps are followed.

[0033] The electrolyzed water generating method 500 includes a first step S10 of generating first electrolyzed water having hydrogen dissolved therein, and a second step S20 of mixing the first electrolyzed water generated in the first step S10 with water.

[0034] The first step S10 is achieved by electrolyzing the supplied raw water in the electrolysis unit 3. The second step S20 is achieved by the mixer 7 mixing the first electrolyzed water and water in an arbitrary ratio.

[0035] In this electrolyzed water production method 500, the first electrolyzed water produced in the first step S10 is diluted by mixing with water in the second step S20, thereby producing electrolyzed water with a desired dissolved hydrogen concentration. Therefore, by changing the mixing ratio of the first electrolyzed water to water in the second step S20, electrolyzed water with any dissolved hydrogen concentration can be produced stably.

[0036] Figure 4 is a block diagram of an electrolyzed water generator 1A, which is a modified example of the electrolyzed water generator 1 in Figure 1. The configuration of the electrolyzed water generator 1 described above can be adopted for parts of the electrolyzed water generator 1A that are not described below.

[0037] The electrolyzed water generator 1A differs from the electrolyzed water generator 1 described above in that it includes a first tank 5 for storing the first electrolyzed water generated by the electrolysis unit 3. The first tank 5 is disposed between the electrolysis unit 3 and the mixer 7. This configuration makes it possible to supply a large amount of electrolyzed water to the dialysis solution preparation device 100 at one time, making it easily suitable for dialysis treatment for a large number of people. Note that a pump (not shown) is provided in the water channel connecting the first tank 5 and the mixer 7, if necessary.

[0038] The electrolyzed water generator 1A preferably further includes a circulation water channel 51 for circulating the first electrolyzed water between the first tank 5 and the electrolysis unit 3. The circulation water channel 51 is provided with a pump 52, as necessary, for delivering the first electrolyzed water from the first tank 5 to the electrolysis unit 3.

[0039] The electrolyzed water generator 1A has an operating mode of a re-electrolysis mode in which the first electrolyzed water in the first tank 5 is transferred to the electrolysis unit 3 and electrolyzed again. That is, the electrolyzed water generator 1A has a re-electrolysis mode in which the electrolysis unit 3 re-electrolyzes the first electrolyzed water while circulating it through the circulation water channel 51. The first electrolyzed water circulating through the circulation water channel 51 may be electrolyzed water mixed with raw water. In this case, the amount of first electrolyzed water in the first tank 5 can be easily ensured.

[0040] In the re-electrolysis mode, the electrolysis unit 3 and the pump 52 are simultaneously operated by the control unit 10. The dissolved hydrogen concentration of the first electrolyzed water stored in the first tank 5 decreases over time. In this embodiment, the dissolved hydrogen concentration of the first electrolyzed water in the first tank 5 is maintained or increased by the re-electrolysis mode.

[0041] The re-electrolysis mode is preferably one that increases the dissolved hydrogen concentration of the first electrolyzed water in the first tank 5 to a saturated hydrogen concentration. Such a re-electrolysis mode makes it easy to increase the dissolved hydrogen concentration of the mixed water. In addition, the dissolved hydrogen concentration of the mixed water becomes stable.

[0042] Figure 5 is a block diagram of an electrolyzed water generator 1B, which is a modified example of the electrolyzed water generator 1A in Figure 4. The configurations of the electrolyzed water generators 1 and 1A described above can be adopted for parts of the electrolyzed water generator 1B that are not described below.

[0043] The electrolyzed water generator 1B differs from the electrolyzed water generator 1A described above in that it includes a second tank 6 for storing water to be supplied to the mixer 7. This configuration, combined with the first tank 5, makes it possible to supply a large amount of electrolyzed water to the dialysis solution preparation device 100 at one time, making it easily suitable for dialysis treatment for a large number of people. Note that a pump (not shown) is provided in the water channel connecting the second tank 6 and the mixer 7, if necessary.

[0044] In the electrolyzed water generating device 1B, it is desirable that the first tank 5 stores first electrolyzed water with a saturated hydrogen concentration, and the second tank 6 stores non-electrolyzed water. This configuration expands the adjustment range of the dissolved hydrogen concentration in the mixed water.

[0045] 6 shows the procedure of an electrolyzed water production method 500B for producing electrolyzed water using the electrolyzed water production device 1B. Although it is preferable to use the electrolyzed water production device 1B to carry out the electrolyzed water production method 500B, it is not necessarily required to use the electrolyzed water production device 1B as long as the following procedure is followed.

[0046] The electrolyzed water generation method 500B includes a first step S10, a step S11 of storing the first electrolyzed water generated in the first step S10 in a first tank 5, a step S12 of storing water having a lower dissolved hydrogen concentration than the first electrolyzed water generated in the first step S10 in a second tank 6, and a second step S20 of mixing the first electrolyzed water stored in step S11 with the water stored in step S12.

[0047] In this electrolyzed water generation method 500B, first electrolyzed water is stored in the first tank 5 in step S11, and water is stored in the second tank 6 in step S12, making it possible to supply large amounts of electrolyzed water at once, making it easily suitable for dialysis treatment for a large number of people.

[0048] Figure 7 is a block diagram of an electrolyzed water generator 1C, which is a modified example of the electrolyzed water generator 1B in Figure 5. For parts of the electrolyzed water generator 1C that are not described below, the configurations of the electrolyzed water generators 1, 1A, and 1B described above can be adopted.

[0049] The electrolyzed water generator 1C differs from the above-described electrolyzed water generator 1A in that it includes a filtration unit 9 that purifies the first electrolyzed water generated by the electrolysis unit 3. The filtration unit 9 of this embodiment is disposed downstream of the electrolysis unit 3.

[0050] The filtration unit 9 may be located upstream of the electrolysis unit 3. Such a filtration unit 9 purifies raw water that has been pretreated, such as by softening, and supplies the purified water to the electrolysis unit 3. In such a configuration, an electrolyzed water generator is realized by connecting the electrolysis unit 3 and the like downstream of a device used for hemodialysis treatment that does not involve electrolysis, thereby reducing the barrier to introducing hemodialysis using electrolyzed water.

[0051] The filtration section 9 of this embodiment has a reverse osmosis membrane 9a. A pump 93 is disposed in a flow path 92 between the electrolysis unit 3 and the filtration section 9 to pump the first electrolyzed water and the like to the filtration section 9. This configuration makes it possible to supply electrolyzed water that has been subjected to reverse osmosis treatment to the dialysis solution preparation device 100 without requiring a separate reverse osmosis treatment device.

[0052] When the electrolyzed water generator 1C is used for hemodialysis treatment, the filtration unit 9 may use a filtering method other than reverse osmosis that satisfies the standards for dialysis water, such as an ion exchange (EDI) module. Also, when the electrolyzed water generated by the electrolyzed water generator 1C is used for purposes other than hemodialysis, a filtering method with a purification capacity appropriate for the purpose may be used.

[0053] As shown in FIG. 7, in an electrolyzed water generator 1C in which a filtration section 9 is disposed downstream of an electrolysis unit 3, a first branch flow path 91 is preferably provided upstream of the electrolysis unit 3.

[0054] The first branch flow path 91 includes a first flow path 91a for supplying raw water to the electrolysis unit 3 and a second flow path 91b for supplying raw water to the filtration unit 9. In this embodiment, a switching valve 91c for switching the flow paths is provided at the branch point between the first flow path 91a and the second flow path 91b, as necessary. The second flow path 91b is connected to a flow path 92 between the electrolysis unit 3 and the pump 93. A switching valve 91d for switching the flow paths is provided at the connection point between the second flow path 91b and the flow path 92, as necessary. The switching valves 91c and 91d are controlled by the controller 10.

[0055] The first branch flow path 91 allows the first electrolyzed water or raw water to be selectively supplied to the filtration unit 9. The first electrolyzed water can be subjected to reverse osmosis treatment by the first flow path 91a and the filtration unit 9. The raw water can be subjected to reverse osmosis treatment by the second flow path 91b and the filtration unit 9.

[0056] It is also possible to supply raw water to the filtration section 9 by stopping the supply of electrolytic current to the anode power supply 41 and the cathode power supply 42 when the raw water passes through the electrolysis unit 3. By controlling the electrolysis unit 3 in this way, it is also possible to omit the second flow path 91b from the electrolyzed water production apparatus 1C.

[0057] As shown in FIG. 7, the electrolyzed water generator 1C is preferably provided with a second branch flow path 94 downstream of the filtration section 9.

[0058] The second branch flow path 94 includes a third flow path 94c for supplying the first electrolyzed water filtered by the filtration unit 9 to the first tank 5, and a fourth flow path 94d for supplying the water (raw water) filtered by the filtration unit 9 to the second tank 6. In this embodiment, a switching valve 94e for switching the flow paths is provided at the branch point between the third flow path 94c and the fourth flow path 94d as needed. The switching valve 94e is controlled by the control unit 10.

[0059] The control unit 10 controls the electrolysis unit 3 and the switching valves 91c, 91d, and 94e in conjunction with each other. The electrolyzed water production device 1C described above can supply first electrolyzed water that has been subjected to reverse osmosis treatment to the first tank 5, and second electrolyzed water or water that has been subjected to reverse osmosis treatment to the second tank 6.

[0060] The electrolyzed water generating device 1 of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment described above and can be modified and implemented in various aspects.

[0061] [Note] The present invention includes the following aspects.

[0062] [Invention 1] An electrolyzed water generating device, an electrolysis unit for generating first electrolyzed water having hydrogen dissolved therein by electrolyzing the supplied raw water; A mixing unit for mixing the first electrolyzed water generated by the electrolysis unit with second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water at an arbitrary mixing ratio. Electrolyzed water generator. [Invention 2] The electrolyzed water generating device according to aspect 1, further comprising a first tank for storing the first electrolyzed water generated by the electrolysis unit. [Invention 3] Further comprising a circulation water channel for circulating the first electrolyzed water between the first tank and the electrolysis unit, The electrolyzed water generating apparatus according to aspect 2, wherein the electrolysis unit has an operation mode of a re-electrolysis mode in which the first electrolyzed water is re-electrolyzed while circulating the first electrolyzed water through the circulation water channel, thereby maintaining or increasing the dissolved hydrogen concentration of the first electrolyzed water in the first tank. [Invention 4] The electrolyzed water generating device according to the third aspect of the present invention, wherein the re-electrolysis mode increases the dissolved hydrogen concentration of the first electrolyzed water to a saturated hydrogen concentration. [Invention 5] 5. The electrolyzed water generating device according to any one of claims 2 to 4, further comprising a second tank for storing the second electrolyzed water or the water, the second electrolyzed water having a lower dissolved hydrogen concentration than the second electrolyzed water. [Invention 6] 6. The electrolyzed water generating apparatus according to claim 5, wherein the second tank is for storing non-electrolyzed water that has not been electrolyzed. [Invention 7] 7. The electrolyzed water generating apparatus according to claim 6, further comprising a filtration section provided upstream of the electrolysis unit. [Invention 8] 7. The electrolyzed water generating apparatus according to claim 6, further comprising a filtration section provided downstream of the electrolysis unit. [Invention 9] a first branch flow path provided upstream of the electrolysis unit, 9. The electrolyzed water generation apparatus according to claim 8, wherein the first branch flow path comprises a first flow path for supplying the raw water to the electrolysis unit and a second flow path for supplying the raw water to the filtration section. [Invention 10] a second branch flow path provided downstream of the filtration section, The electrolytic water generating apparatus according to the present invention 8 or 9, wherein the second branch flow path comprises a third flow path for supplying the first electrolytic water filtered by the filtration section to the first tank, and a fourth flow path for supplying the second electrolytic water or the water filtered by the filtration section to the second tank. [Invention 11] An electrolytic water generating apparatus as described in any one of claims 5 to 10, wherein the mixing unit is a valve capable of adjusting the mixing ratio between the first electrolytic water in the first tank and the second electrolytic water or water in the second tank. [Invention 12] An electrolyzed water generating device according to any one of the first to eleventh aspects, wherein a sensor for measuring the dissolved hydrogen concentration of the mixed water mixed in the mixing section is provided in the flow path downstream of the mixing section. [Invention 13] a control unit for controlling the mixing ratio of the mixing unit, 13. The electrolyzed water generating device according to claim 12, wherein the control unit controls the mixing ratio based on the output from the sensor. [Invention 14] 14. The electrolyzed water generating apparatus according to claim 13, wherein the control unit controls the electrolysis unit based on the output from the sensor. [Invention 15] A method for producing electrolyzed water, A first step of generating first electrolyzed water containing dissolved hydrogen by electrolyzing the supplied raw water; A second step of mixing the first electrolyzed water produced in the first step with second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water in any ratio. Electrolyzed water generation method. [Invention 16] Storing the first electrolyzed water generated in the first step in a first tank; 17. A method for generating electrolyzed water as described in claim 16, further comprising the step of storing the second electrolyzed water or the water having a lower dissolved hydrogen concentration than the first electrolyzed water generated in the first step in a second tank. [Explanation of symbols]

[0063] 1: Electrolyzed water generator 1A: Electrolyzed water generator 1B: Electrolyzed water generator 1C: Electrolyzed water generator 3: Electrolysis unit 5: First tank 6: Second tank 7: Mixing section 8: Sensor 9: Filtration section 9a: Reverse osmosis membrane 10: Control section 51: Circulation waterway 91: First branch channel 91a: First flow path 91b: Second flow path 94: Second branch channel 94c: Third flow path 94d: 4th flow path 500: Electrolyzed water generation method 500B: Electrolyzed water generation method S10: First step S11: Step S12: Step S20: Second step

Claims

1. An electrolyzed water generating device, an electrolysis unit for generating first electrolyzed water having hydrogen dissolved therein by electrolyzing the supplied raw water; A mixing unit for mixing the first electrolyzed water generated by the electrolysis unit with second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water at an arbitrary mixing ratio; a first tank for storing the first electrolyzed water generated by the electrolysis unit; A second tank for storing the second electrolyzed water or the water; a filtration unit provided downstream of the electrolysis unit; and a first branch flow path provided upstream of the electrolysis unit, The second tank is for storing non-electrolyzed water, the first branch flow path includes a first flow path for supplying the raw water to the electrolysis unit and a second flow path for supplying the raw water to the filtration section. Electrolyzed water generator.

2. An electrolyzed water generating device, an electrolysis unit for generating first electrolyzed water having hydrogen dissolved therein by electrolyzing the supplied raw water; A mixing unit for mixing the first electrolyzed water generated by the electrolysis unit with second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water at an arbitrary mixing ratio; a first tank for storing the first electrolyzed water generated by the electrolysis unit; A second tank for storing the second electrolyzed water or the water; a filtration unit provided downstream of the electrolysis unit; and a second branch flow path provided downstream of the filtration section, The second tank is for storing non-electrolyzed water, The second branch flow path includes a third flow path for supplying the first electrolyzed water filtered by the filtration unit to the first tank, and a fourth flow path for supplying the second electrolyzed water or the water filtered by the filtration unit to the second tank. Electrolyzed water generator.

3. Further comprising a circulation water channel for circulating the first electrolyzed water between the first tank and the electrolysis unit, 3. The electrolyzed water generating apparatus according to claim 1, wherein the electrolysis unit has an operation mode of a re-electrolysis mode in which the first electrolyzed water is re-electrolyzed while circulating the first electrolyzed water through the circulation water channel, thereby maintaining or increasing the dissolved hydrogen concentration of the first electrolyzed water in the first tank.

4. The electrolyzed water generating device according to claim 3, wherein the re-electrolysis mode increases the dissolved hydrogen concentration of the first electrolyzed water to a saturated hydrogen concentration.

5. An electrolyzed water generating apparatus as described in claim 1 or 2, wherein the mixing section is a valve capable of adjusting the mixing ratio between the first electrolyzed water in the first tank and the second electrolyzed water or water in the second tank.

6. An electrolyzed water generating device as described in claim 1 or 2, wherein a sensor for measuring the dissolved hydrogen concentration of the mixed water mixed in the mixing section is provided in the flow path downstream of the mixing section.

7. A control unit for controlling the mixing ratio of the mixing unit, The electrolyzed water generating device according to claim 6 , wherein the control unit controls the mixing ratio based on an output from the sensor.

8. An electrolyzed water generating device as described in Claim 7, wherein the control unit controls the electrolysis unit based on the output from the sensor.

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