Electrolyzed water generator and electrolyzed water generation method

Abstract

The present invention provides an electrolytic water generator capable of stably producing electrolytic water with any desired dissolved hydrogen concentration. [Solution] The electrolytic water generator 1 includes an electrolytic unit 3 for generating electrolytic water in which hydrogen is dissolved by electrolyzing supplied raw water, and a mixing unit 7 for mixing the first electrolytic water generated by the electrolytic unit with a second electrolytic water or water having a lower dissolved hydrogen concentration than the first electrolytic water in any ratio.

Description

Technical Field

[0001] The present invention relates to an electrolyzed water generator and the like.

Background Art

[0002] In recent years, dialysis treatment using electrolyzed water generated by an electrolyzed water generator has attracted attention. For example, it is known that electrolyzed hydrogen water in which hydrogen gas generated by electrolyzing water is dissolved contributes to reducing the oxidative stress of patients (see, for example, Patent Document 1 below).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In large-scale hospitals and the like, dialysis treatment is performed on a large number of patients simultaneously. For this reason, the electrolyzed water generator is provided with a tank for storing a large amount of electrolyzed water.

[0005] On the other hand, dialysis treatment is not usually performed constantly, and there are also time zones when the electrolyzed water in the tank is not consumed. In such time zones, in order to suppress 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 is retained in the tank and waits without being electrolyzed.

[0006] However, the dissolved hydrogen concentration gradually decreases due to the escape of the hydrogen gas dissolved from the electrolyzed water in the standby state.

[0007] This invention was devised in view of the above-described circumstances, and its main objective is to provide an electrolytic water generator, etc., that can stably produce electrolytic water with any desired dissolved hydrogen concentration. [Means for solving the problem]

[0008] The present invention relates to an electrolytic water generator, An electrolysis unit for generating first electrolyzed water containing dissolved hydrogen by electrolyzing the supplied raw water, The system includes a mixing unit for mixing the first electrolyzed water produced by the electrolysis unit with a second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water, in any mixing ratio. [Effects of the Invention]

[0009] The electrolytic water generating apparatus of the present invention can stably produce electrolytic water with any desired dissolved hydrogen concentration because the mixing unit mixes the first electrolytic water with a second electrolytic water or water having a lower dissolved hydrogen concentration than the first electrolytic water in any mixing ratio. [Brief explanation of the drawing]

[0010] [Figure 1] This block diagram shows the schematic configuration of the electrolytic water generator of the present invention. [Figure 2] This diagram shows the configuration of the electrolytic unit shown in Figure 1. [Figure 3] This flowchart outlines the procedure for the electrolytic water generation method of the present invention. [Figure 4] Figure 1 is a block diagram showing a schematic configuration of a modified example of an electrolytic water generator. [Figure 5] Figure 4 is a block diagram showing a schematic configuration of a modified example of an electrolytic water generator. [Figure 6] Figure 3 is a flowchart illustrating the general procedure for a modified version of the electrolytic water generation method. [Figure 7] Figure 5 is a block diagram showing a schematic configuration of a modified example of an electrolytic water generator. [Modes for carrying out the invention]

[0011] One embodiment of the present invention will be described below with reference to the drawings. Figure 1 shows a schematic configuration of the electrolytic water generator 1 of this embodiment. The electrolytic water generator 1 is a device for generating electrolytic water and is connected to a dialysis fluid preparation device 100 for preparing dialysis fluid. The electrolytic water generator 1 supplies the generated electrolytic water to the dialysis fluid preparation device 100.

[0012] The electrolytic water generator 1 includes an electrolysis unit 3 for generating first electrolytic water from supplied raw water, and a mixing unit 7 for mixing the first electrolytic water generated by the electrolysis unit 3 with water in a desired ratio. The electrolytic 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 types of water, such as well water or groundwater, can also be used. The raw water is stored in a raw water tank (not shown), pre-treated such as water softening, and then supplied to the electrolysis unit 3 via a water supply valve (not shown).

[0014] Figure 2 shows the electrolysis unit 3. The electrolysis unit 3 includes an electrolytic cell 4. When the dialysate prepared by the dialysate preparation device 100 is used for dialysis of many patients, it is desirable that the electrolysis unit 3 be configured to include multiple electrolytic cells 4, as shown in Figure 2. The multiple electrolytic cells 4 are connected in parallel to each other as a flow path. 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 electrolytic chamber 40, an anode power supply 41, a cathode power supply 42, and a diaphragm 43. The electrolytic chamber 40 is divided by the diaphragm 43 into an anode chamber 40a where the anode power supply 41 is located and a cathode chamber 40b where the cathode power supply 42 is located. Raw water is supplied to the anode chamber 40a and the cathode chamber 40b, for example, through a bifurcated channel (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 performs feedback control on the electrolytic voltage applied to the anode power supply 41 and the cathode power supply 42 so that the electrolytic current supplied to the anode power supply 41 and the cathode power supply 42 becomes a preset desired value. For example, when the electrolytic current is excessive, the control unit 10 decreases the voltage, and when the electrolytic current is too small, the control unit 10 increases the voltage. Thereby, the electrolytic current is appropriately controlled.

[0017] Among the electrolyzed water electrolyzed in the electrolytic cell 4, the electrolyzed water generated in the cathode chamber 40b is sent to the mixing section 7 as cathode water. On the other hand, the electrolyzed water generated in the anode chamber 40a is discharged outside the electrolyzed water generating apparatus 1 as anode water.

[0018] When water is electrolyzed in the electrolytic cell 4, 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 from the anode chamber 40a as anode water, and is discharged outside the electrolyzed water generating apparatus 1.

[0020] The hydrogen gas generated in the cathode chamber 40b dissolves in the electrolyzed water in the cathode chamber 40b, is taken out 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 in which hydrogen gas is dissolved by electrolysis in the cathode chamber 40b.

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

[0022] As shown in Figure 1, the mixing unit 7 mixes the electrolyzed water produced in the cathode chamber 40b of the electrolysis unit 3 with water. The water mixed with the electrolyzed hydrogen water by the mixing unit 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 unelectrolyzed non-electrolyzed water.

[0023] In this application, the water simply referred to as "water" is 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, provided that its dissolved hydrogen concentration is lower than that of the first electrolyzed water.

[0024] In the mixing section 7, the second electrolyzed water, which is mixed with the first electrolyzed water produced by the electrolysis unit 3, preferably 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 later.

[0025] The mixing unit 7 mixes the first electrolyzed water produced by the electrolysis unit 3 with water in a desired ratio. In this electrolyzed water generator 1, the first electrolyzed water produced by the electrolysis unit 3 is diluted by mixing with water in the mixing unit 7, 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 mixing unit 7, electrolyzed water with a desired dissolved hydrogen concentration can be stably produced.

[0026] The mixing unit 7 preferably includes a mixing valve that can adjust the mixing ratio between the first electrolyzed water produced by the electrolysis unit 3 and water. The mixing ratio of the mixing unit 7 is controlled by the control unit 10.

[0027] The control unit 10 is responsible for controlling each part of the electrolytic water generator 1. The control unit 10 includes, for example, a CPU (Central Processing Unit) that performs various calculations and information processing, a program that controls the operation of the CPU, and a memory that stores various information. The various functions of the control unit 10 are realized by the CPU, memory, and program.

[0028] It is desirable that a sensor 8 for measuring the dissolved hydrogen concentration of the mixed water mixed in the mixing unit 7 is provided in the flow path downstream of the mixing unit 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 provides feedback control to the mixing ratio of the mixing unit 7 so that the mixed water reaches the desired dissolved hydrogen concentration.

[0030] The control unit 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 mixing unit 7 is adjusted. For example, if the control unit 10 controls the electrolysis current of the electrolysis unit 3 to a large value, mixed water with a high dissolved hydrogen concentration is obtained, and if the control unit 10 controls the electrolysis current of the electrolysis unit 3 to a small value, the dissolved hydrogen concentration of the mixed water is adjusted more precisely.

[0031] Furthermore, a pump 82 for sending mixed water to the dialysate preparation device 100 is provided as needed in the flow path 81 from the sensor 8 to the dialysate preparation device 100.

[0032] Figure 3 shows the procedure for the electrolytic water generation method 500, which generates electrolytic water using the electrolytic water generator 1. While the electrolytic water generator 1 is preferable for implementing the electrolytic water generation method 500, it is not necessarily required as long as the following procedure is followed.

[0033] The electrolytic water generation method 500 includes a first step S10 for generating first electrolytic water in which hydrogen is dissolved, and a second step S20 for mixing the first electrolytic water generated in the first step S10 with water.

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

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

[0036] Figure 4 is a block diagram of electrolytic water generator 1A, which is a modified version of electrolytic water generator 1 shown in Figure 1. For parts of electrolytic water generator 1A not described below, the configuration of electrolytic water generator 1 described above may be adopted.

[0037] The electrolytic water generator 1A differs from the electrolytic water generator 1 described above in that it includes a first tank 5 for storing the first electrolytic water generated by the electrolysis unit 3. The first tank 5 is located between the electrolysis unit 3 and the mixing unit 7. This configuration makes it possible to supply a large amount of electrolytic water to the dialysis fluid preparation device 100 at once, making it easily suitable for dialysis treatment of multiple patients. A pump (not shown) may be provided in the water channel connecting the first tank 5 and the mixing unit 7 as needed.

[0038] Preferably, the electrolytic water generator 1A further includes a circulation channel 51 for circulating the first electrolytic water between the first tank 5 and the electrolysis unit 3. A pump 52 for sending the first electrolytic water from the first tank 5 to the electrolysis unit 3 is provided in the circulation channel 51 as needed.

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

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

[0041] The re-electrolysis mode is preferably used to increase the dissolved hydrogen concentration of the first electrolyzed water in the first tank 5 to the saturation hydrogen concentration. This re-electrolysis mode easily increases the dissolved hydrogen concentration of the mixed water and stabilizes the dissolved hydrogen concentration of the mixed water.

[0042] Figure 5 is a block diagram of electrolytic water generator 1B, which is a modified version of electrolytic water generator 1A shown in Figure 4. For parts of electrolytic water generator 1B not described below, the configurations of electrolytic water generators 1 and 1A described above may be adopted.

[0043] The electrolytic water generator 1B differs from the electrolytic water generator 1A described above in that it includes a second tank 6 for storing water supplied to the mixing unit 7. This configuration, in conjunction with the first tank 5, makes it possible to supply a large amount of electrolytic water to the dialysis fluid preparation device 100 at once, making it easily suitable for dialysis treatment of multiple patients. A pump (not shown) may be provided in the water channel connecting the second tank 6 and the mixing unit 7 as needed.

[0044] In the electrolyzed water generator 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 that has not been electrolyzed. This configuration expands the range of adjustment for the dissolved hydrogen concentration in the mixed water.

[0045] Figure 6 shows the procedure for electrolytic water generation method 500B, which uses electrolytic water generator 1B to produce electrolytic water. While it is preferable to use electrolytic water generator 1B to implement electrolytic water generation method 500B, it is not necessarily required as long as the following procedure is followed.

[0046] The electrolytic water generation method 500B includes a first step S10, a step S11 in which the first electrolytic water generated in the first step S10 is stored in a first tank 5, a step S12 in which water with a lower dissolved hydrogen concentration than the first electrolytic water generated in the first step S10 is stored in a second tank 6, and a second step S20 in which the first electrolytic water stored in step S11 and the water stored in step S12 are mixed.

[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 a large amount of electrolyzed water at once, and thus easily adaptable to dialysis treatment for multiple patients.

[0048] Figure 7 is a block diagram of electrolytic water generator 1C, which is a modified version of electrolytic water generator 1B shown in Figure 5. For parts of electrolytic water generator 1C not described below, the configurations of electrolytic water generators 1, 1A, and 1B described above may be adopted.

[0049] The electrolytic water generator 1C differs from the electrolytic water generator 1A described above in that it includes a filtration unit 9 for purifying the first electrolytic water produced by the electrolysis unit 3. The filtration unit 9 in this embodiment is located downstream of the electrolysis unit 3.

[0050] The filtration unit 9 may also be located upstream of the electrolysis unit 3. Such a filtration unit 9 purifies raw water that has undergone pretreatment such as water softening and supplies it to the electrolysis unit 3. In this configuration, an electrolytic water generator can be realized by connecting the electrolysis unit 3, etc., downstream of a device used for hemodialysis treatment that does not involve electrolysis, thereby reducing the barrier to introducing hemodialysis using electrolytic water.

[0051] The filtration unit 9 in this embodiment has a reverse osmosis membrane 9a. A pump 93 is provided in the flow path 92 between the electrolysis unit 3 and the filtration unit 9 to pump the first electrolyzed water, etc., to the filtration unit 9. With this configuration, reverse osmosis treated electrolyzed water can be supplied to the dialysate preparation device 100 without requiring a separate reverse osmosis treatment device.

[0052] When the electrolytic water generator 1C is used for hemodialysis treatment, the filtration unit 9 may utilize a filtration method other than reverse osmosis that meets the standards for dialysis water, such as an ion exchange (EDI: Electro-ionization) module. Furthermore, when the electrolytic water generated by the electrolytic water generator 1C is used for purposes other than hemodialysis, a filtration method with purification capabilities appropriate to that purpose may be used.

[0053] As shown in Figure 7, in an electrolytic water generator 1C in which the filtration unit 9 is located downstream of the electrolytic unit 3, it is desirable that the first branch channel 91 be provided upstream of the electrolytic unit 3.

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

[0055] This first branch channel 91 allows for the selective supply of either the first electrolyzed water or raw water to the filtration unit 9. The first channel 91a and the filtration unit 9 enable reverse osmosis treatment of the first electrolyzed water. The second channel 91b and the filtration unit 9 enable reverse osmosis treatment of the raw water.

[0056] Furthermore, it is also possible to supply raw water to the filtration unit 9 by stopping the supply of electrolytic current to the anode power supply 41 and cathode power supply 42 as the raw water passes through the electrolysis unit 3. In this way, by controlling the electrolysis unit 3, it is also possible to omit the second flow path 91b from the electrolytic water generator 1C.

[0057] As shown in Figure 7, it is preferable that the electrolytic water generator 1C has a second branch channel 94 downstream of the filtration section 9.

[0058] The second branch channel 94 includes a third channel 94c for supplying the first electrolyzed water filtered in the filtration unit 9 to the first tank 5, and a fourth channel 94d for supplying the water (raw water) filtered in the filtration unit 9 to the second tank 6. In this embodiment, a switching valve 94e for switching the channels is provided as needed at the branching point between the third channel 94c and the fourth channel 94d. 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 this electrolytic water generator 1C, reverse osmosis treated first electrolytic water can be supplied to the first tank 5, and reverse osmosis treated second electrolytic water or water can be supplied to the second tank 6.

[0060] Although the electrolytic water generator 1 and other components of the present invention have been described in detail above, the present invention is not limited to the above-described specific embodiments and can be implemented in various modified forms.

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

[0062] [Invention 1] Electrolyzed water generator, An electrolysis unit for generating first electrolyzed water containing dissolved hydrogen by electrolyzing the supplied raw water, The system includes a mixing unit for mixing the first electrolyzed water produced by the electrolysis unit with a second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water, in any mixing ratio. Electrolyzed water generator. [Invention 2] An electrolytic water generating apparatus according to the present invention 1, comprising a first tank for storing the first electrolytic water generated by the electrolytic unit. [Invention 3] The system further includes a circulation channel for circulating the first electrolyzed water between the first tank and the electrolysis unit, The electrolytic water generating apparatus according to the present invention, wherein the electrolytic unit includes a re-electrolysis mode as an operating mode, which maintains or increases the dissolved hydrogen concentration of the first electrolytic water in the first tank by re-electrolyzing the first electrolytic water while circulating it through the circulation channel. [4th Invention] The electrolytic water generating apparatus according to the present invention, wherein the re-electrolysis mode increases the dissolved hydrogen concentration of the first electrolyzed water to a saturated hydrogen concentration. [5th ​​Invention] An electrolytic water generating apparatus according to any one of inventions 2 to 4, comprising a second tank for storing the second electrolytic water or the water, the second electrolytic water having a lower dissolved hydrogen concentration than the second electrolytic water. [Invention 6] The electrolytic water generating apparatus according to the present invention, wherein the second tank is for storing non-electrolyzed water. [7th Invention] The electrolytic water generating apparatus according to the present invention, comprising a filtration section provided upstream of the electrolytic unit, as described in invention 6. [8th Invention] The electrolytic water generating apparatus according to the present invention, comprising a filtration unit provided downstream of the electrolytic unit, as described in invention 6. [Invention 9] Including a first branch channel provided on the upstream side of the electrolytic unit, The electrolytic water generating apparatus according to the present invention, wherein the first branch channel comprises a first channel for supplying the raw water to the electrolysis unit and a second channel for supplying the raw water to the filtration unit. [Invention 10] Including a second branch channel provided downstream of the aforementioned filtration section, The electrolytic water generating apparatus according to the present invention 8 or 9, wherein the second branch channel comprises a third channel for supplying the first electrolytic water filtered in the filtration section to the first tank, and a fourth channel for supplying the second electrolytic water filtered in the filtration section or the water to the second tank. [Invention 11] The electrolytic water generating apparatus according to any one of claims 5 to 10 of the present invention, wherein the mixing unit is a valve capable of adjusting the mixing ratio of the first electrolytic water in the first tank and the second electrolytic water in the second tank or the water. [Invention 12] An electrolytic water generator according to any one of invention 1 to 11, 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] Includes a control unit for controlling the mixing ratio of the mixing section, The electrolytic water generating apparatus according to the present invention 12, wherein the control unit controls the mixing ratio based on the output from the sensor. [Invention 14] The electrolytic water generating apparatus according to the present invention 13, wherein the control unit controls the electrolytic unit based on the output from the sensor. [Invention 15] A method for generating electrolyzed water, The first step involves electrolyzing the supplied raw water to produce first electrolyzed water containing dissolved hydrogen, The method includes a second step of mixing the first electrolyzed water produced in the first step with a 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] The first step involves storing the first electrolyzed water generated in the first step into the first tank, A method for producing electrolyzed water according to the present invention 16, comprising the step of storing in a second tank second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water produced in the first step. [Explanation of symbols]

[0063] 1: Electrolyzed water generator 1A: Electrolyzed water generator 1B: Electrolyzed water generator 1C: Electrolyzed water generator 3: Electrolytic Unit 5: Tank No. 1 6: Tank No. 2 7: Mixing section 8: Sensor 9: Filtration section 9a: Reverse osmosis membrane 10: Control Unit 51: Circulation waterway 91: First branch channel 91a: First channel 91b: Second channel 94: Second branch channel 94c: Third channel 94d: Fourth channel 500: Electrolyzed water generation method 500B: Electrolyzed water generation method S10: Step 1 S11: Step S12: Step S20: Step 2

Claims

1. Electrolyzed water generator, An electrolysis unit for generating first electrolyzed water containing dissolved hydrogen by electrolyzing the supplied raw water, A mixing unit for mixing the first electrolyzed water produced by the electrolysis unit with a second electrolyzed water or water having a lower dissolved hydrogen concentration than the first electrolyzed water in any mixing ratio, The mixing section includes a control unit for controlling the mixing ratio, A sensor for measuring the dissolved hydrogen concentration of the mixed water mixed in the mixing section is provided in the downstream flow path of the mixing section. The control unit controls the mixing ratio based on the output from the sensor. Electrolyzed water generator.

2. The electrolytic water generating apparatus according to claim 1, wherein the control unit controls the electrolytic unit based on the output from the sensor.

3. The electrolytic water generating apparatus according to claim 1 or 2, further comprising a first tank for storing the first electrolytic water generated by the electrolysis unit.

4. Further comprising a circulation channel for circulating the first electrolyzed water between the first tank and the electrolysis unit, The electrolytic water generating apparatus according to claim 3, wherein the electrolytic unit includes a re-electrolysis mode as an operating mode, which maintains or increases the dissolved hydrogen concentration of the first electrolytic water in the first tank by re-electrolyzing the first electrolytic water while circulating it through the circulation channel.

5. The electrolytic water generator according to claim 4, wherein the re-electrolysis mode increases the dissolved hydrogen concentration of the first electrolyzed water to a saturated hydrogen concentration.

6. The electrolytic water generating apparatus according to claim 3, further comprising the second electrolytic water or a second tank for storing the water.

7. The electrolytic water generator according to claim 6, wherein the second tank is for storing non-electrolyzed water.

8. The electrolytic water generating apparatus according to claim 7, further comprising a filtration unit provided on the upstream side of the electrolytic unit.

9. The electrolytic water generating apparatus according to claim 7, further comprising a filtration unit provided downstream of the electrolytic unit.

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