JP2016165667A - Electrolytic water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrolytic water generator capable of generating electrolytic water at a constant dissolved hydrogen concentration regardless of a flow rate of water supplied to an electrolytic tank.SOLUTION: There is provided an electrolytic water generator 1 which comprises an electrolytic tank 4 in which an electrolytic chamber 40 is formed, an anode feeder 41 and a cathode feeder 42 which are arranged opposite to each other in the electrolytic chamber 40, a diaphragm 43 which is arranged between the anode feeder 41 and the cathode feeder 42 and divides the electrolytic chamber 40 into an anode chamber 40a and a cathode chamber 40b, a flow rate sensor 5 for detecting a flow rate of water supplied to the electrolytic chamber 40 per unit time and control means 6 for controlling the electrolysis current fed to the feeders 41 and 42. The control means 6 adjusts the dissolved gas concentration of the electrolytic water generated in the electrolytic chamber 40 so as to be constant by controlling the electrolysis current based on the flow rate detected by the flow rate sensor 5. Thus, electrolytic water at a constant dissolved gas concentration can be generated regardless of a flow rate of water supplied to an electrolytic tank.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrolyzed water generating apparatus that electrolyzes water to generate electrolyzed water.

  2. Description of the Related Art Conventionally, an electrolyzed water generating apparatus that includes an electrolytic cell having an electrolysis chamber composed of an anode chamber and a cathode chamber partitioned by a diaphragm and electrolyzes tap water or the like supplied to the electrolysis chamber is known. In general, the pH value of electrolyzed water generated by the electrolyzed water generating device depends on the flow rate of water supplied to the electrolysis chamber. Therefore, by providing a flow sensor for detecting the flow rate of water supplied to the electrolysis chamber, determining which flow rate category the detected flow rate belongs to, and correcting the electrolysis voltage for each flow rate category, the pH value can be adjusted. A stabilized electrolyzed water generator has been proposed. (For example, refer to Patent Document 1).

Japanese Patent No. 4378803

  However, in the electrolyzed water generating device disclosed in the above-mentioned Patent Document 1, not only the pH value fluctuates in each flow rate section but also the flow rate as described in FIGS. When the section is switched, the pH value fluctuates greatly.

  By the way, the concentration of dissolved gas dissolved in the electrolyzed water generated by electrolysis in the electrolysis chamber also depends on the flow rate of water supplied to the electrolysis chamber, similarly to the pH value. Therefore, in the electrolyzed water generating device disclosed in Patent Document 1, not only the dissolved gas concentration varies within each flow rate segment, but also the dissolved gas concentration varies discontinuously and greatly when the flow rate segment is switched. .

  The present invention has been devised in view of the above circumstances, and provides an electrolyzed water generating device capable of generating electrolyzed water having a constant dissolved gas concentration regardless of the flow rate of water supplied to the electrolysis chamber. Is the main purpose.

  The present invention includes an electrolytic cell in which an electrolysis chamber to which water to be electrolyzed is formed, an anode power feeding body and a cathode power feeding body arranged to face each other in the electrolysis chamber, the anode power feeding body, and the An electrolyzed water generating device provided with a diaphragm disposed between a cathode power supply and dividing the electrolysis chamber into an anode chamber on the anode power supply side and a cathode chamber on the cathode power supply side, The apparatus further comprises a flow rate sensor for detecting a flow rate of water supplied to the electrolysis chamber per unit time, and a control means for controlling the electrolysis current supplied to the power feeder, the control means being detected by the flow rate sensor. Further, by controlling the electrolysis current based on the flow rate, the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber is adjusted to be constant.

  In the electrolyzed water generating apparatus according to the present invention, the control means determines an electrolysis current to be supplied to the power feeder based on a predetermined flow rate and a correlation between the electrolysis current and the dissolved gas concentration. Is desirable.

In the electrolyzed water generating apparatus according to the present invention, the control means is a linear function of the flow rate detected by the flow sensor I = a × F + b
It is desirable to determine the electrolysis current using
However,
I: Electrolytic current F: Flow rate per unit time a: Constant b: Constant.

  The electrolyzed water generating apparatus according to the present invention further includes current detection means for detecting the electrolysis current, and the control means is configured so that the electrolysis current detected by the current detection means matches the determined electrolysis current. It is desirable to control the voltage applied between the power feeders.

  In the electrolyzed water generating apparatus according to the present invention, the user further includes operation means for setting a dissolved gas concentration of electrolyzed water generated in the electrolysis chamber by the electrolysis, and the control means includes the operation means. It is desirable to determine the constant a of the linear function according to the dissolved gas concentration set by (1).

  In the electrolyzed water generating apparatus according to the present invention, the electrolytic cell includes a first electrolytic cell in which the diaphragm includes a solid polymer membrane, and a second electrolytic cell provided on the downstream side of the first electrolytic cell. The control means preferably controls the electrolysis current of the first electrolysis tank and the electrolysis current of the second electrolysis tank separately.

  In the electrolyzed water generating apparatus according to the present invention, the electrolytic cell includes a first electrolytic cell in which the diaphragm includes a solid polymer membrane, and a second electrolytic cell provided on the downstream side of the first electrolytic cell. Preferably, the control means separately determines the electrolysis current of the first electrolyzer and the electrolysis current of the second electrolyzer using the linear functions having different constants a.

  In the electrolyzed water generating apparatus according to the present invention, the control means dissolves electrolyzed water generated in the cathode chamber based on the flow rate detected by the flow rate sensor and an electrolysis current supplied to the anode feeder. It is desirable to calculate the gas concentration.

  The electrolyzed water generating apparatus according to the present invention preferably further includes a display unit that displays the dissolved gas concentration calculated by the control unit.

  The electrolyzed water generating apparatus of the present invention includes a flow rate sensor that detects a flow rate per unit time of water supplied to the electrolytic cell, and a control unit that controls the electrolysis current supplied to the anode feeder. The control means adjusts the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber to be constant by controlling the electrolysis current based on the flow rate detected by the flow sensor. Therefore, electrolyzed water having a constant dissolved gas concentration can be generated regardless of the flow rate of water supplied to the electrolytic cell.

It is a block diagram which shows schematic structure of one Embodiment of the electrolyzed water generating apparatus of this invention. It is a flowchart which shows operation | movement of the electrolyzed water generating apparatus of FIG. 3 is a graph showing the relationship between the flow rate of water supplied to the electrolytic cell, the electrolysis current controlled by the control means, and the dissolved hydrogen concentration of the electrolytic hydrogen water in the electrolyzed water generating apparatus operating as shown in FIG. FIG. 3 is a flow chart showing an operation different from that in FIG. 2 in the electrolyzed water generator of FIG. 1. FIG. 5 is a graph showing the relationship between the flow rate of water supplied to the electrolytic cell, the electrolysis current controlled by the control means, and the dissolved hydrogen concentration of electrolytic hydrogen water in the electrolyzed water generating apparatus operating as shown in FIG. 4. It is a block diagram which shows schematic structure of another embodiment of the electrolyzed water generating apparatus of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a schematic configuration of an electrolyzed water generating apparatus 1 of the present embodiment. In the present embodiment, as the electrolyzed water generating device 1, for example, a home electrolyzed water generating device used for generating home drinking water is shown.

  The electrolyzed water generating apparatus 1 includes a water purification cartridge 2 for purifying water, an electrolysis tank 4 in which an electrolysis chamber 40 to which purified water is supplied is formed, and a flow rate for detecting the flow rate of water supplied to the electrolysis chamber 40. The sensor 5 and the control means 6 which controls each part of the electrolyzed water generating apparatus 1 are provided.

  In the present embodiment, the water purification cartridge 2 is provided upstream of the electrolytic cell 4. Raw water is supplied to the water purification cartridge 2. As the raw water, tap water is generally used, but well water, ground water, and the like can be used. The purified water cartridge 2 purifies the raw water by filtration and supplies the obtained purified water to the electrolysis chamber 40.

  The water purification cartridge 2 may be provided downstream of the electrolytic cell 4. In this case, the water purification cartridge 2 purifies the water electrolyzed by the electrolysis chamber 40.

  In the present embodiment, the water purified by the water purification cartridge 2 is electrolyzed in the electrolysis chamber 40. Inside the electrolysis chamber 40, an anode power supply 41 and a cathode power supply 42 are arranged to face each other. A diaphragm 43 is disposed between the anode power supply 41 and the cathode power supply 42. The diaphragm 43 divides the electrolysis chamber 40 into an anode chamber 40a on the anode power supply 41 side and a cathode chamber 40b on the cathode power supply 42 side.

  Water is supplied to both the anode chamber 40 a and the cathode chamber 40 b of the electrolysis chamber 40, and a DC voltage is applied to the anode power supply 41 and the cathode power supply 42, whereby water is electrolyzed in the electrolysis chamber 40.

  The diaphragm 43 allows ions generated by electrolysis to pass through. The anode power supply 41 and the cathode power supply 42 are electrically connected via the diaphragm 43. By electrolyzing water in the electrolysis chamber 40, electrolysis hydrogen water in which hydrogen gas is dissolved is obtained in the cathode chamber 40b, and electrolysis oxygen water in which oxygen gas is dissolved is obtained in the anode chamber 40a.

  The diaphragm 43 is made of, for example, a polytetrafluoroethylene (PTFE) hydrophilic film.

  The electrolyzed hydrogen water obtained in the cathode chamber 40b and the electrolyzed oxygen water obtained in the anode chamber 40a are supplied to the faucet part via the flow path switching valve 11 and discharged. The flow path switching valve 11 is configured to be able to switch the connection destination while separating the flow path of the electrolytic hydrogen water obtained in the cathode chamber 40b and the flow path of the electrolytic oxygen water obtained in the anode chamber 40a. Yes. Hereinafter, although the case where the electrolytic hydrogen water produced | generated by the cathode chamber 40b is used is demonstrated, it is the same also when the electrolytic oxygen water produced | generated by the anode chamber 40a is used.

  The flow rate sensor 5 periodically (for example, 0. 0) supplies a flow rate per unit time of water supplied to the electrolysis chamber 40 (hereinafter, simply referred to as “flow rate of water supplied to the electrolysis chamber 40”). And detect a signal corresponding to that value to the control means 6. The flow rate of water supplied to the electrolysis chamber 40 is the amount of water flow per unit time to the electrolyzed water generator 1, and the total amount of water supplied to the electrolysis chamber 40, that is, the anode chamber 40a and the cathode chamber 40b per unit time. Flow rate.

  In the present embodiment, the flow sensor 5 is provided between the water purification cartridge 2 and the electrolytic cell 4. The flow rate sensor 5 only needs to be able to detect the flow rate of water supplied to the electrolysis chamber 40 directly or indirectly, and may be provided upstream of the water purification cartridge 2 or downstream of the electrolytic cell 4. If the flow rate ratio between the anode chamber 40a and the cathode chamber 40b is known, the flow rate of water supplied to the anode chamber 40a or the cathode chamber 40b is detected, and the flow rate of water supplied to the electrolysis chamber 40 is estimated. May be.

  The polarity of the anode feeder 41 and the cathode feeder 42 and the applied voltage are controlled by the control means 6. The control means 6 includes, for example, a CPU (Central Processing Unit) that executes various arithmetic processes and information processing, a program that controls the operation of the CPU, and a memory that stores various information.

  The control means 6 refers to the information stored in the memory based on the signal input from the flow sensor 5 and controls the electrolytic current supplied to the power feeding bodies 41 and 42. The control of the electrolysis current is realized by controlling the voltage applied between the anode power supply 41 and the cathode power supply 42 by the control means 6.

  A current detection means 7 is provided on the current supply line between the anode power supply 41 and the control means 6. The current detection means 7 may be provided in a current supply line between the cathode power supply 42 and the control means 6. The current detection means 7 detects the electrolysis current supplied to the power feeding bodies 41 and 42 and outputs a signal corresponding to the value to the control means 6. The control means 6 feedback-controls the voltage applied between the anode power supply 41 and the cathode power supply 42 based on the signal input from the current detection means 7. For example, when the electrolysis current is excessive, the control unit 6 decreases the voltage, and when the electrolysis current is excessive, the control unit 6 increases the voltage. Thereby, the electrolysis current supplied to the power feeding bodies 41 and 42 can be appropriately controlled.

  FIG. 2 is a flowchart illustrating an example of an operation of controlling the electrolytic current supplied to the power feeding bodies 41 and 42 in the electrolyzed water generating apparatus 1. When water flow to the electrolyzed water generator 1 is started, the flow sensor 5 starts detecting the flow rate of water supplied to the electrolysis chamber 40 (S1). As a result, a signal corresponding to the flow rate value is periodically input to the control means 6. The flow rate of water supplied to the electrolysis chamber 40 is a flow rate per unit time of water supplied to the electrolysis chamber 40.

  The control means 6 determines the electrolysis current supplied to the power feeders 41 and 42 based on the signal input from the flow sensor 5 (S2), and controls the electrolysis voltage (S3). Then, when the water is stopped, that is, when the water flow to the electrolyzed water generating device 1 is stopped (Y in S4), the processing is ended. On the other hand, while water is continuing (N in S4), the process returns to S2 to determine the electrolysis current.

  In FIG. 3, the solid line I shows the relationship between the flow rate of water supplied to the electrolysis chamber 40 and the electrolysis current controlled by the control means 6. In FIG. 3, the relationship between the flow rate of water supplied to the electrolysis chamber 40 and the dissolved hydrogen concentration of electrolyzed hydrogen water generated in the cathode chamber 40 b when the electrolysis current I is controlled based on the above relationship. Is indicated by a broken line D.

  In FIG. 3, the horizontal axis represents the value (liters / minute) obtained by converting the flow rate of water supplied to the electrolysis chamber 40 per minute, the left vertical axis represents the electrolysis current (A), and the right vertical axis represents The dissolved hydrogen concentration (ppb) is defined respectively (hereinafter the same applies to FIG. 5).

In the present embodiment, the control means 6 determines the electrolytic current of the electrolytic cell 4 using the equation (1) that is a linear function of the flow rate detected by the flow rate sensor 5.
I = a × F + b (1)
However,
I: Electrolytic current F: Flow rate per unit time a: Constant b: Constant. Information corresponding to the above equation (1) is stored in the memory of the control means 6 as information for determining the electrolytic current of the electrolytic cell 4. The control means 6 calculates the electrolysis current I by applying the flow rate detected by the flow rate sensor 5 to the equation (1).

  When the electrolysis current I is determined using the above formula (1), the electrolysis current I changes linearly with respect to the flow rate F as shown by the solid line in FIG. That is, the electrolysis current I increases or decreases linearly according to the fluctuation of the flow rate per unit time of the water supplied to the electrolysis chamber 40.

  As a result, as indicated by the broken line in FIG. 3, electrolyzed water having a constant dissolved hydrogen concentration D can be generated regardless of the flow rate F of water supplied to the electrolysis chamber 40.

  As shown in FIG. 1, the electrolyzed water generating apparatus 1 further includes display means 8 that displays various types of information. In the present embodiment, for example, an LCD (Liquid Crystal Display) that displays an image such as character information is applied as the display unit 8. The display means 8 may be configured by a plurality of LEDs (Light Emitting Diodes) or the like.

  The information displayed by the display means 8 includes the operating state of the electrolyzed water generating device 1. For example, the display unit 8 displays the dissolved hydrogen concentration of the electrolytic hydrogen water generated in the cathode chamber 40b. The user can know the concentration of dissolved hydrogen in the discharged water by confirming the information displayed on the display means 8, and the usability of the electrolyzed water generating apparatus 1 can be improved.

  The dissolved hydrogen concentration of the electrolytic hydrogen water is calculated by the control means 6 based on the flow rate detected by the flow sensor 5 and the electrolysis current detected by the current detection means 7.

  In the present invention, as shown in FIG. 3, the dissolved hydrogen concentration of the electrolytic hydrogen water generated in the cathode chamber 40b is constant regardless of the flow rate. Therefore, since the dissolved hydrogen concentration displayed on the display unit 8 is constant regardless of the flow rate, the user can use the electrolyzed water generating apparatus 1 without being confused by the information regarding the dissolved hydrogen concentration.

  As shown in FIG. 1, the electrolyzed water generating apparatus 1 further includes operation means 9 operated by a user. The user can input various commands and settings to the control means 6 by operating the operation means 9.

  The setting includes, for example, selection of an operation mode of the electrolyzed water generating device 1. The electrolyzed water generator 1 is provided with a plurality of operation modes in advance, and in each operation mode, the dissolved hydrogen concentration of the electrolyzed water is assigned in advance for each mode. The user can set the dissolved hydrogen concentration and the like by operating the operation means 9 and appropriately selecting one of the operation modes. With such a configuration, the user can discharge electrolyzed water having a desired dissolved hydrogen concentration, and the usability of the electrolyzed water generating apparatus 1 is improved.

  FIG. 4 is a flowchart showing an example of an operation for controlling the electrolysis current supplied to the power feeding bodies 41 and 42 in the electrolyzed water generating apparatus 1 having a function of switching the operation mode by the operation means 9.

  In the present embodiment, for example, “first drinking water mode”, “second drinking water mode”, “third drinking water mode”, and “cooking water mode” are provided as the operation modes. The “first drinking water mode” is a mode for generating drinking water having a dissolved hydrogen concentration of 100 ppb. Similarly, the “second potable water mode” is a mode that generates potable water having a dissolved hydrogen concentration of 200 ppb, and the “third potable water mode” is a mode that generates potable water having a dissolved hydrogen concentration of 300 ppb. . The “cooking water mode” is a mode in which cooking water is generated with the maximum electrolysis current. One of the operation modes is selected before water is passed through the electrolyzed water generating device 1. The selected operation mode is stored in the memory of the control means 6.

  When water flow to the electrolyzed water generator 1 is started, the control means 6 confirms the operation mode (S11), and the flow rate sensor 5 detects the flow rate per unit time of the water supplied to the electrolysis chamber 40. Start (S12). As a result, a signal corresponding to the flow rate value is periodically input to the control means 6.

  The control means 6 determines the electrolysis current supplied to the power feeders 41 and 42 based on the signal input from the flow sensor 5 (S13), and controls the electrolysis voltage (S14). Here, the electrolytic current varies depending on the selected operation mode.

  FIG. 5 shows the relationship between the flow rate of water supplied to the electrolysis chamber 40 and the electrolysis current controlled by the control means 6 in each operation mode, and the relationship between the flow rate and the dissolved hydrogen concentration.

That is, the relationship between the water flow rate and the electrolysis current in the “first potable water mode” is indicated by a one-dot chain line I ₁ , and the relationship between the water flow rate and the dissolved hydrogen concentration is indicated by a one-dot chain line D ₁ . The relationship between the water flow rate and the electrolysis current in the “second potable water mode” is indicated by a two-dot chain line I ₂ , and the relationship between the water flow rate and the dissolved hydrogen concentration is indicated by a two-dot chain line D ₂ . Similarly, the relationship between the water flow rate and the electrolysis current in the “third potable water mode” is indicated by a three-dot chain line I ₃ , and the relationship between the water flow rate and the dissolved hydrogen concentration is indicated by a three-dot chain line D _3. . Further, the relationship between the water flow rate and the electrolysis current in the “cooking water mode” is indicated by a broken line I ₄ , and the relationship between the water flow rate and the dissolved hydrogen concentration is indicated by a broken line D ₄ .

  In the present embodiment, the memory of the control means 6 includes the flow rate of water supplied to the electrolysis chamber 40, the electrolysis current supplied to the power feeders 41 and 42, and the dissolved hydrogen concentration of electrolyzed water generated in the cathode chamber 40b. The data shown in FIG. 5 is stored as data indicating the correlation. The control means 6 controls the electrolytic current supplied to the power feeders 41 and 42 by referring to the data stored in the memory based on the signal input from the flow sensor 5 according to each operation mode.

  That is, in the “first drinking water mode”, the “second drinking water mode”, and the “third drinking water mode”, the control means 6 uses the linear function of the flow rate detected by the flow sensor 5 to change the electrolysis current. decide.

As shown in Figure 5, the slope two-dot chain line I _2, greater than the slope of the dashed line I _1, the slope of the three-dot chain line I ₃ is greater than the slope of the two-dot chain line I _2. That is, the constant a of the linear function shown in the equation (1) is set to a different value depending on the dissolved hydrogen concentration in each drinking water mode. More specifically, when the dissolved hydrogen concentration is set to double, the constant a is also set to double.

  And the control means 6 determines the constant a of the linear function shown by Formula (1) according to the dissolved hydrogen concentration set by the operation mode being selected by the operation means 9. As a result, regardless of the flow rate of water supplied to the electrolysis chamber 40 in any potable water mode, electrolyzed water having a constant dissolved hydrogen concentration can be generated.

  Even when any of the operation modes is selected, when the water is stopped, that is, when the water flow to the electrolyzed water generating device 1 is stopped (in S15), similarly to the operation shown in FIG. Y), the process ends. On the other hand, while water is continuing (N in S15), the process returns to S13 to determine the electrolysis current.

  In this embodiment, even if any drinking water mode is selected by the user, electrolyzed water having a constant dissolved hydrogen concentration can be generated regardless of the flow rate of water supplied to the electrolysis chamber 40.

(Second Embodiment)
FIG. 6 shows an electrolyzed water generating apparatus 1A that is another embodiment of the present invention. The electrolyzed water generating apparatus 1A is different from the electrolyzed water generating apparatus 1 shown in FIG. 1 in that the electrolyzed water generating apparatus 1A includes a first electrolyzer 3 and a second electrolyzer 4 in which water flow paths are connected in series.

  The first electrolytic cell 3 has an electrolysis chamber 30 to which water purified by the water purification cartridge 2 is supplied. Inside the electrolysis chamber 30, an anode power supply 31 and a cathode power supply 32 are arranged to face each other. A diaphragm 33 is disposed between the anode power supply 31 and the cathode power supply 32. The diaphragm 33 divides the electrolysis chamber 30 into an anode chamber 30a on the anode feeder 31 side and a cathode chamber 30b on the cathode feeder 32 side.

  For the diaphragm 33, for example, a solid polymer material made of a fluorine-based resin material having a sulfonic acid group is used. In the electrolytic cell 3 having the diaphragm 33 using the solid polymer material, neutral electrolyzed water is generated.

  In the cathode chamber 30b, hydrogen gas is generated by electrolysis of water and is dissolved in the water in the cathode chamber 30b. On the other hand, in the anode chamber 30a, oxygen gas is generated by water electrolysis and dissolves in the water in the anode chamber 30a. Thereby, electrolytic hydrogen water is generated in the cathode chamber 30b, and electrolytic oxygen water is generated in the anode chamber 30a.

  The second electrolytic cell 4 is provided on the downstream side of the first electrolytic cell 3. The configuration of the second electrolytic cell 4 is the same as the electrolytic cell 4 of the first embodiment.

  The anode chamber 30 a of the first electrolytic cell 3 is connected to the anode chamber 40 a of the second electrolytic cell 4, and the cathode chamber 30 b of the first electrolytic cell 3 is connected to the cathode chamber 40 b of the second electrolytic cell 4. For this reason, the electrolytic oxygen water produced | generated in the anode chamber 30a is supplied to the anode chamber 40a, and the electrolytic hydrogen water produced | generated in the cathode chamber 30b is supplied to the cathode chamber 40b.

  The flow rate of water supplied to the first electrolytic cell 3 per unit time is detected by a flow rate sensor 5 provided between the water purification cartridge 2 and the first electrolytic cell 3.

  The second electrolytic cell 4 increases the dissolved gas concentration of the electrolytic water generated in the first electrolytic cell 3. At this time, the electrolyzed water generated in the anode chamber 40a becomes acidic, and the electrolyzed water generated in the cathode chamber 40b becomes alkaline.

  A current detection means 71 is provided on the current supply line between the anode feeder 31 and the control means 6. Similarly, a current detection means 72 is provided on the current supply line between the anode power supply 41 and the control means 6. The current detection means 71 and 72 may be provided in a current supply line between the cathode power feeders 32 and 42 and the control means 6.

  The control means 6 feedback-controls the voltage applied between the anode power supply 31 and the cathode power supply 32 based on the signal input from the current detection means 71. Further, the control means 6 performs feedback control of the voltage applied between the anode power supply 41 and the cathode power supply 42 based on the signal input from the current detection means 72. Thus, the DC voltage applied to the anode feeder 31 and the cathode feeder 32 of the first electrolytic cell 3 and the DC voltage applied to the anode feeder 41 and the cathode feeder 42 of the second electrolytic cell 4 are as follows. These are controlled separately by the control means 6. Therefore, the electrolysis current supplied to the power feeding bodies 31 and 32 and the electrolysis current supplied to the power feeding bodies 41 and 42 are separately controlled by the control means 6.

  About operation | movement which controls the electrolysis current supplied to the electric power feeders 31 and 32 and the electric power feeders 41 and 42 in the electrolyzed water generating apparatus 1A, it is equivalent to the operation | movement shown by FIG. 2 or FIG. The relationship between the flow rate of water supplied to each electrolytic cell 3 and 4 and the electrolysis current controlled by the control means 6 and the relationship between the flow rate and the dissolved hydrogen concentration are the same as in FIGS. .

The control means 6 determines the electrolytic current of the first electrolytic cell 3 using the equation (2) that is a linear function of the flow rate detected by the flow rate sensor 5.
I = a ₁ × F + b ₁ (2)
However,
a ₁ : Constant b ₁ : Constant.

Similarly, the control means 6 determines the electrolytic current of the second electrolytic cell 4 using the equation (3) that is a linear function of the flow rate detected by the flow rate sensor 5.
I = a ₂ × F + b ₂ (3)
However,
a ₂ : Constant b ₂ : Constant.

Thus, the control means 6 determines separately the electrolysis current of the 1st electrolysis tank 3 and the electrolysis current of the 2nd electrolysis tank 4 using the linear function from which the constant a of inclination differs. Thereby, regardless of the flow rate of the water supplied to the electrolysis chambers 30 and 40, electrolysis hydrogen water having a constant dissolved hydrogen concentration can be generated. Furthermore, since the first electrolytic cell 3 and the second electrolytic cell 4 can be controlled with different electrolysis currents, electrolytic hydrogen water having various dissolved hydrogen concentrations can be generated by appropriately setting the constants a ₁ and a _2. it can. For example, it is possible to generate weakly alkaline electrolytic hydrogen water having a very high dissolved hydrogen concentration.

  The display means 8 of the second embodiment is equivalent to the display means 8 of the first embodiment shown in FIG. The display means 8 may display the dissolved hydrogen concentration of the electrolytic hydrogen water generated in the first electrolytic tank 3 alone, and the dissolved hydrogen water of the electrolytic hydrogen water generated in the first electrolytic tank 3 and the second electrolytic tank 4. The concentration may be displayed. In any case, the dissolved hydrogen concentration displayed by the display means 8 can be calculated by the control means 6.

  The operation means 9 of the second embodiment is equivalent to the operation means 9 of the first embodiment shown in FIG. The operation means 9 may be configured so that the operation modes of the first electrolytic cell 3 and the second electrolytic cell 4 can be individually selected. According to such a configuration, electrolytic hydrogen water having various dissolved hydrogen concentrations can be generated.

  As mentioned above, although the electrolyzed water generating apparatus 1 and 1A of this invention were demonstrated in detail, this invention is changed and implemented in various aspects, without being limited to said specific embodiment. That is, the electrolyzed water generating apparatus 1 includes at least the electrolytic cell 4 in which the electrolysis chamber 40 is formed, the anode power feeding body 41 and the cathode power feeding body 42 that are disposed to face each other in the electrolysis chamber 40, and the anode power feeding body. 41 and a cathode feeder 42, and a diaphragm 43 that divides the electrolysis chamber 40 into an anode chamber 40a and a cathode chamber 40b, and a flow rate of water supplied to the electrolysis chamber 40 per unit time. And a control means 6 for controlling the electrolysis current supplied to the power feeders 41 and 42, and the control means 6 controls the electrolysis current based on the flow rate detected by the flow sensor 5. Thus, the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber 40 may be adjusted so as to be constant.

  In the electrolyzed water generating device 1 shown in FIG. 1 and the electrolyzed water generating device 1A shown in FIG. 6, the diaphragm 43 may be made of a solid polymer material made of a fluorine-based resin material having a sulfonic acid group. Good. In this case, neutral electrolytic hydrogen water is generated by the electrolysis chamber 40.

  Further, as information for the control means 6 to determine the electrolysis current, a table showing the correlation between the flow rate, the electrolysis current and the dissolved hydrogen concentration is stored in the memory of the control means 6 instead of the information related to the above formula (1). May be. The correlation can be determined in advance by experiments or the like for each specification of the electrolytic cell 4. The table is not limited to a table format, but may be a graph format shown in FIGS.

DESCRIPTION OF SYMBOLS 1 Electrolyzed water production | generation apparatus 3 Electrolytic chamber 4 Electrolytic tank 5 Flow rate sensor 6 Control part 7 Current detection means 8 Display means 9 Operation means 40 Electrolytic chamber 40a Anode chamber 40b Cathode chamber 41 Anode feeder 42 Cathode feeder 43 Diaphragm

Claims (9)

An electrolytic cell in which an electrolytic chamber to which water to be electrolyzed is supplied is formed;
An anode feeder and a cathode feeder disposed opposite to each other in the electrolytic chamber;
Electrolyzed water generation comprising a diaphragm disposed between the anode feeder and the cathode feeder and dividing the electrolysis chamber into an anode chamber on the anode feeder side and a cathode chamber on the cathode feeder side A device,
A flow sensor for detecting a flow rate per unit time of water supplied to the electrolysis chamber;
Control means for controlling the electrolysis current supplied to the power feeder, and
The control means adjusts the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber to be constant by controlling the electrolysis current based on the flow rate detected by the flow sensor. An electrolyzed water generator.   The electrolyzed water generating apparatus according to claim 1, wherein the control means determines an electrolysis current to be supplied to the power feeding body based on a predetermined flow rate and a correlation between the electrolysis current and the dissolved gas concentration. The control means is a linear function of the flow rate detected by the flow sensor I = a × F + b
The electrolyzed water generating apparatus according to claim 1, wherein the electrolysis current is determined using a power source.
However,
I: Electrolytic current F: Flow rate per unit time a: Constant b: Constant. A current detecting means for detecting the electrolytic current;
The electrolysis according to any one of claims 1 to 3, wherein the control unit controls a voltage applied between the power feeding bodies so that an electrolysis current detected by the current detection unit coincides with the determined electrolysis current. Water generator. The user further comprises operating means for setting a dissolved gas concentration of electrolyzed water generated in the electrolysis chamber by the electrolysis,
The electrolyzed water generating apparatus according to claim 3, wherein the control unit determines the constant a of the linear function according to a dissolved gas concentration set by the operation unit. The electrolytic cell has a first electrolytic cell in which the diaphragm includes a solid polymer membrane, and a second electrolytic cell provided on the downstream side of the first electrolytic cell,
The electrolyzed water generating apparatus according to any one of claims 1 to 5, wherein the control unit separately controls the electrolysis current of the first electrolysis tank and the electrolysis current of the second electrolysis tank. The electrolytic cell has a first electrolytic cell in which the diaphragm includes a solid polymer membrane, and a second electrolytic cell provided on the downstream side of the first electrolytic cell,
The electrolyzed water generation according to claim 3 or 5, wherein the control means separately determines the electrolysis current of the first electrolysis tank and the electrolysis current of the second electrolysis tank using the linear function having different constants a. apparatus.   The said control means calculates the dissolved gas concentration of the electrolyzed water produced | generated in the said cathode chamber based on the said flow volume detected by the said flow sensor, and the electrolysis electric current supplied to the said anode electric power feeding body. The electrolyzed water production | generation apparatus in any one.   The electrolyzed water generating apparatus according to claim 8, further comprising a display unit that displays the dissolved gas concentration calculated by the control unit.

Images