CN105948176B - Electrolyzed water generation device - Google Patents

Electrolyzed water generation device Download PDF

Info

Publication number
CN105948176B
CN105948176B CN201610086827.8A CN201610086827A CN105948176B CN 105948176 B CN105948176 B CN 105948176B CN 201610086827 A CN201610086827 A CN 201610086827A CN 105948176 B CN105948176 B CN 105948176B
Authority
CN
China
Prior art keywords
electrolytic
chamber
flow rate
water
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610086827.8A
Other languages
Chinese (zh)
Other versions
CN105948176A (en
Inventor
小泉义信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Dunning Co ltd
Original Assignee
Japan Dunning Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Dunning Co ltd filed Critical Japan Dunning Co ltd
Publication of CN105948176A publication Critical patent/CN105948176A/en
Application granted granted Critical
Publication of CN105948176B publication Critical patent/CN105948176B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/46115—Electrolytic cell with membranes or diaphragms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/4614—Current
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46145—Fluid flow
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)

Abstract

The invention provides an electrolyzed water generating device which can generate electrolyzed water with a certain dissolved hydrogen concentration regardless of the flow rate of water supplied to an electrolytic bath. An electrolyzed water production device (1) is provided with: an electrolytic cell (4) in which an electrolytic chamber (40) is formed, an anode power feeder (41) and a cathode power feeder (42) which are arranged in the electrolytic chamber (40) so as to face each other, a diaphragm (43) which is arranged between the anode power feeder (41) and the cathode power feeder (42) and divides the electrolytic chamber (40) into an anode chamber (40a) and a cathode chamber (40b), a flow rate sensor (5) which detects the flow rate of water supplied to the electrolytic chamber (40) per unit time, and a control device (6) which controls the electrolytic current supplied to the power feeders (41, 42). The control device (6) controls the electrolysis current based on the flow rate detected by the flow rate sensor (5), thereby adjusting the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber (40) to be constant.

Description

Electrolyzed water generation device
Technical Field
The present invention relates to an electrolyzed water generation apparatus that generates electrolyzed water by decomposing water and electricity.
Background
There is conventionally known an electrolyzed water forming apparatus including an electrolytic cell having an electrolytic chamber constituted by an anode chamber and a cathode chamber partitioned by a diaphragm, and configured to electrolyze tap water or the like supplied to the electrolytic chamber. Generally, the pH of the electrolyzed water produced by the electrolyzed water production apparatus depends on the flow rate of the water supplied to the electrolysis chamber. Therefore, an electrolyzed water forming apparatus has been proposed which is provided with a flow rate sensor for detecting the flow rate of water supplied to an electrolysis chamber, determines which flow rate division the detected flow rate belongs to, and corrects the electrolysis voltage for each flow rate division, thereby stabilizing the pH value. (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 4378803
However, in the electrolytic water generator disclosed in patent document 1, as described in fig. 2, 3, and 5 of the same document, the pH value fluctuates not only in each flow rate section but also discontinuously and largely when the flow rate sections are switched.
The concentration of dissolved gas dissolved in the electrolytic water generated by the electrolysis in the electrolytic cell is also dependent on the flow rate of water supplied to the electrolytic cell, as is the pH value. Therefore, in the electrolytic water generator disclosed in patent document 1, not only the dissolved gas concentration fluctuates in each flow rate division, but also the dissolved gas concentration discontinuously fluctuates greatly when the flow rate division is switched.
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in view of the above circumstances, and a main object thereof is to provide an electrolytic water generating apparatus capable of generating electrolytic water having a constant dissolved gas concentration regardless of the flow rate of water supplied to an electrolytic chamber.
Means for solving the problems
The present invention provides an electrolyzed water generation apparatus, comprising: an electrolytic tank formed with an electrolytic chamber to which water for electrolysis is supplied; an anode feeder and a cathode feeder which are arranged to face each other in the electrolytic chamber; a diaphragm disposed between the anode power feeder and the cathode power feeder and dividing the electrolytic chamber into an anode chamber on the anode power feeder side and a cathode chamber on the cathode power feeder side, wherein the electrolyzed water generating apparatus further comprises: a flow rate sensor that detects a flow rate per unit time of water supplied to the electrolytic chamber; and a controller that controls an electrolysis current supplied to the power supply body, wherein the controller controls the electrolysis current based on the flow rate detected by the flow rate sensor, thereby adjusting a dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber to be constant.
In the electrolyzed water forming apparatus according to the present invention, it is preferable that the control device determines the electrolysis current to be supplied to the power supply body based on the predetermined flow rate and a correlation between the electrolysis current and the dissolved gas concentration.
In the electrolyzed water forming apparatus according to the present invention, it is preferable that the control device uses a linear function of the flow rate detected by the flow rate sensor
I＝a×F+b，
Determining the current of the electrolysis,
wherein,
i: electrolytic current
F: flow rate per unit time
a: constant number
b: a constant.
In the electrolytic water generator of the present invention, it is preferable that the electrolytic water generator further includes a current detection device that detects the electrolytic current, and the control device controls the voltage applied between the power feeding bodies so that the electrolytic current detected by the current detection device matches the determined electrolytic current.
In the electrolytic water generating apparatus according to the present invention, it is preferable that the electrolytic water generating apparatus further includes an operation device for setting a dissolved gas concentration of the electrolytic water generated in the electrolytic chamber by the electrolysis by a user, and the control device determines the constant a of the linear function based on the dissolved gas concentration set by the operation device.
In the electrolyzed water forming apparatus according to the present invention, it is preferable that the electrolytic cell includes a first electrolytic cell in which the diaphragm is made of a material containing a solid polymer, and a second electrolytic cell provided downstream of the first electrolytic cell, and the controller controls the electrolytic current in the first electrolytic cell and the electrolytic current in the second electrolytic cell, respectively.
In the electrolytic water generator of the present invention, it is preferable that the electrolytic cell includes a first electrolytic cell in which the diaphragm includes a solid polymer film, and a second electrolytic cell provided downstream of the first electrolytic cell, and the controller determines the electrolytic current of the first electrolytic cell and the electrolytic current of the second electrolytic cell, respectively, using the linear functions having different constants a.
In the electrolyzed water forming apparatus according to the present invention, it is preferable that the control device calculates a dissolved gas concentration of the electrolyzed water formed in the cathode chamber based on the flow rate detected by the flow rate sensor and the electrolysis current supplied to the anode power supply body.
In the electrolytic water generator according to the present invention, it is preferable that the electrolytic water generator further includes a display unit that displays the dissolved gas concentration calculated by the control device.
Effects of the invention
The electrolyzed water forming apparatus of the present invention includes a flow rate sensor for detecting a flow rate of water supplied to an electrolytic cell per unit time, and a control device for controlling an electrolysis current supplied to an anode power supply. The control device controls the electrolysis current based on the flow rate detected by the flow rate sensor, thereby adjusting the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber to be constant. Therefore, electrolyzed water having a constant dissolved gas concentration can be produced regardless of the flow rate of water supplied to the electrolytic cell.
Drawings
FIG. 1 is a block diagram showing a schematic configuration of an embodiment of an electrolytic water producing apparatus according to the present invention;
FIG. 2 is a flowchart showing the operation of the electrolyzed water forming apparatus shown in FIG. 1;
FIG. 3 is a graph showing the relationship among the flow rate of water supplied to the electrolytic cell, the electrolytic current controlled by the control device, and the dissolved hydrogen concentration of the electrolytic hydrogen-rich water in the electrolytic water generating apparatus operating as shown in FIG. 2;
FIG. 4 is a flowchart showing an operation of the electrolyzed water forming apparatus of FIG. 1 which is different from that of FIG. 2;
FIG. 5 is a graph showing the relationship among the flow rate of water supplied to the electrolytic cell, the electrolytic current controlled by the control device, and the dissolved hydrogen concentration of the electrolytic hydrogen-rich water in the electrolytic water generating apparatus operating as shown in FIG. 4;
FIG. 6 is a block diagram schematically showing the structure of another embodiment of the electrolyzed water forming apparatus according to the present invention.
Description of the symbols
1 electrolyzed water producing apparatus
3 electrolytic chamber
4 electrolytic cell
5 flow sensor
6 control part
7 Current detection device
8 display device
9 operating device
40 electrolytic chamber
40a anode chamber
40b cathode chamber
41 anode power supply
42 cathode power supply
43 diaphragm
Detailed Description
An embodiment of the present invention will be described below with reference to the drawings.
(first embodiment)
Fig. 1 shows a schematic configuration of an electrolyzed water forming apparatus 1 according to the present embodiment. In the present embodiment, a household electrolyzed water forming apparatus used for forming household drinking water is shown as the electrolyzed water forming apparatus 1, for example.
The electrolyzed water forming apparatus 1 includes: a purified water tank 2 for purifying water, an electrolytic cell 4 formed with an electrolytic chamber 40 for supplying purified water, a flow sensor 5 for detecting the flow rate of water supplied to the electrolytic chamber 40, and a control device 6 for controlling each part of the electrolyzed water forming apparatus 1.
In the present embodiment, the fresh water tank 2 is disposed upstream of the electrolytic bath 4. Raw water is supplied to the clean water tank 2. The raw water is usually tap water, but other water such as well water, ground water, etc. may be used. The water purification tank 2 purifies raw water by filtration and supplies the obtained purified water to the electrolysis chamber 40.
The clean-water tank 2 may also be arranged downstream of the electrolytic bath 4. In this case, the fresh water tank 2 purifies the water electrolyzed by the electrolysis chamber 40.
In the present embodiment, the water purified by the purified water tank 2 is electrolyzed in the electrolysis chamber 40. Inside the electrolytic chamber 40, an anode power feeder 41 and a cathode power feeder 42 are disposed so as to face each other. A separator 43 is disposed between the anode power feeder 41 and the cathode power feeder 42. The diaphragm 43 divides the electrolytic cell 40 into an anode chamber 40a on the anode feeder 41 side and a cathode chamber 40b on the cathode feeder 42 side.
Water is supplied to both the anode chamber 40a and the cathode chamber 40b of the electrolysis chamber 40, and direct-current voltage is applied to the anode feeder 41 and the cathode feeder 42, whereby water is electrolyzed in the electrolysis chamber 40.
The diaphragm 43 passes ions generated by the electrolysis. The anode power supply 41 and the cathode power supply 42 are electrically connected via the separator 43. By electrolyzing water in the electrolysis chamber 40, electrolyzed hydrogen-rich water containing hydrogen dissolved therein is obtained in the cathode chamber 40b, and electrolyzed oxygen-rich water containing oxygen dissolved therein is obtained in the anode chamber 40 a.
The separator 43 is made of, for example, a hydrophilic film containing Polytetrafluoroethylene (PTFE).
The electrolyzed hydrogen-rich water obtained in the cathode chamber 40b and the electrolyzed oxygen-rich water obtained in the anode chamber 40a are supplied to and discharged from the faucet through the flow path switching valve 11. The flow path switching valve 11 is configured to be able to switch the connection point while separating the flow path of the electrolyzed hydrogen rich water obtained in the cathode chamber 40b and the flow path of the electrolyzed oxygen rich water obtained in the anode chamber 40 a. Hereinafter, the case of using the electrolyzed hydrogen-rich water produced in the cathode chamber 40b will be described, but the same applies to the case of using the electrolyzed oxygen-rich water produced in the anode chamber 40 a.
The flow rate sensor 5 periodically (for example, every 0.1 second) detects the flow rate of water supplied to the electrolytic chamber 40 per unit time (hereinafter, also referred to simply as "the flow rate of water supplied to the electrolytic chamber 40"), and outputs a signal corresponding to the detected value to the control device 6. The flow rate of water supplied to the electrolytic cell 40 is the amount of water flowing per unit time to the electrolyzed water forming apparatus 1, and is the total flow rate of water supplied to the electrolytic cell 40, that is, the anode chamber 40a and the cathode chamber 40b, per unit time.
In the present embodiment, the flow sensor 5 is provided between the clean water tank 2 and the electrolytic bath 4. The flow sensor 5 may be provided upstream of the clean water tank 2 or downstream of the electrolytic cell 4, as long as it can directly or indirectly detect the flow rate of water supplied to the electrolytic chamber 40. When the flow rate ratio of the anode chamber 40a to the cathode chamber 40b is known, the flow rate of water supplied to the anode chamber 40a or the cathode chamber 40b may be detected to estimate the flow rate of water supplied to the electrolysis chamber 40.
The polarities of the anode feeder 41 and the cathode feeder 42 and the applied voltages are controlled by the control device 6. The control device 6 includes, for example, a CPU (Central Processing Unit) that executes various arithmetic Processing and information Processing, a memory that stores a program that controls the operation of the CPU and various information, and the like.
The control device 6 controls the electrolytic current supplied to the power feeding bodies 41 and 42 based on the signal input from the flow sensor 5 with reference to the information stored in the memory. The control of the electrolytic current is achieved by controlling the voltage applied between the anode power supply 41 and the cathode power supply 42 by the control device 6.
A current detection device 7 is provided on a current supply line between the anode power supply 41 and the control device 6. The current detection means 7 may also be arranged on the current supply line between the cathode current supply 42 and the control means 6. The current detection device 7 detects the electrolytic current supplied to the power feeding members 41, 42, and outputs a signal corresponding to the detected value to the control device 6. The control device 6 performs feedback control of the voltage applied between the anode power feeder 41 and the cathode power feeder 42 based on the signal input from the current detection device 7. For example, when the electrolysis current is too large, the control device 6 decreases the voltage, and when the electrolysis current is too small, the control device 6 increases the voltage. This enables the electrolytic current supplied to the power feeding bodies 41 and 42 to be appropriately controlled.
Fig. 2 is a flowchart showing an example of an operation of controlling the electrolytic current supplied to the power feeding bodies 41 and 42 in the electrolyzed water forming apparatus 1. When the water supply to the electrolyzed water forming apparatus 1 is started, the flow rate sensor 5 starts the detection of the flow rate of the water supplied to the electrolytic chamber 40 (S1). Thereby, a signal corresponding to the flow rate value is periodically input to the control device 6. The flow rate of water supplied to the electrolytic chamber 40 is a flow rate per unit time directed to the water supplied to the electrolytic chamber 40.
The control device 6 determines the electrolysis current to be supplied to the power feeding elements 41 and 42 based on the signal input from the flow sensor 5 (S2), and controls the electrolysis voltage (S3). When the water supply is stopped, that is, when the water supply to the electrolyzed water forming apparatus 1 is stopped (yes in S4), the process is terminated. On the other hand, while water passage continues (no in S4), the process returns to S2 to determine the electrolysis current.
In fig. 3, a solid line I represents a relationship between the flow rate of water supplied to the electrolytic chamber 40 and the electrolytic current controlled by the control device 6. In fig. 3, a broken line D indicates a relationship between the flow rate of water supplied to the electrolytic chamber 40 and the dissolved hydrogen concentration of the electrolyzed hydrogen-rich water generated in the cathode chamber 40b when the electrolysis current I is controlled based on the above relationship.
In fig. 3, the horizontal axis defines a value (liters/minute) obtained by converting the flow rate of water supplied to the electrolytic chamber 40 per minute, the left vertical axis defines the electrolytic current (a), and the right vertical axis defines the dissolved hydrogen concentration (ppb) (the same applies to fig. 5).
In the present embodiment, the controller 6 determines the electrolytic current of the electrolytic cell 4 by using the equation (1) which is a linear function of the flow rate detected by the flow rate sensor 5.
I＝a×F+b (1)
Wherein,
i: electrolytic current
F: flow rate per unit time
a: constant number
b: a constant.
The memory of the control device 6 stores information corresponding to the above equation (1) as information for determining the electrolysis current of the electrolytic cell 4. The control device 6 calculates the electrolytic current I using the flow rate detected by the flow rate sensor 5 in the formula (1).
When the electrolytic current I is determined by using the above formula (1), the electrolytic current I linearly changes with respect to the flow rate F as shown by the solid line in fig. 3. That is, the electrolysis current I linearly (linearly) increases and decreases according to the variation in the flow rate of water supplied to the electrolysis chamber 40 per unit time.
As a result, as shown by the broken line in fig. 3, electrolyzed water having a constant dissolved hydrogen concentration D can be produced regardless of the flow rate F of water supplied to the electrolysis chamber 40.
As shown in fig. 1, the electrolyzed water forming apparatus 1 further includes a display device 8 for displaying various information.
In the present embodiment, for example, an LCD (Liquid Crystal Display) or the like that displays an image such as character information is applied as the Display device 8. However, the display device 8 may be configured by a plurality of LEDs (Light Emitting diodes) or the like.
The information displayed by the display device 8 includes the operation state of the electrolyzed water forming apparatus 1. For example, the display device 8 displays the dissolved hydrogen concentration of the electrolyzed hydrogen-rich water produced in the cathode chamber 40 b. The user can know the dissolved hydrogen concentration in the wastewater by checking the information displayed on the display device 8, and the convenience of the electrolyzed water forming apparatus 1 is improved.
The dissolved hydrogen concentration of the electrolyzed hydrogen-rich water is calculated by the control device 6 based on the flow rate detected by the flow rate sensor 5 and the electrolysis current detected by the current detection device 7.
In the present invention, as shown in fig. 3, the dissolved hydrogen concentration of the electrolyzed hydrogen-rich water produced in the cathode chamber 40b is constant regardless of the flow rate. Accordingly, the dissolved hydrogen concentration displayed on the display device 8 is constant regardless of the flow rate, and therefore, the user can use the electrolyzed water forming apparatus 1 without being disturbed by the information on the dissolved hydrogen concentration.
As shown in fig. 1, the electrolyzed water forming apparatus 1 further includes an operation device 9 operated by a user. The user can input various commands and settings to the control device 6 by operating the operation device 9.
The above setting includes, for example, selection of an operation mode of the electrolyzed water forming apparatus 1. A plurality of operation modes are preset in the electrolyzed water forming apparatus 1, and the dissolved hydrogen concentration of the electrolyzed water is previously assigned to each of the operation modes. The user can set the dissolved hydrogen concentration and the like by operating the operation device 9 to appropriately select any one of the operation modes. With such a configuration, the user can discharge the electrolyzed water having a desired dissolved hydrogen concentration, and the convenience of the electrolyzed water forming apparatus 1 is improved.
Fig. 4 is a flowchart showing an example of an operation of controlling the electrolytic current supplied to the power feeding bodies 41 and 42 in the electrolyzed water forming apparatus 1 having the function of switching the operation mode by the operation device 9.
In the present embodiment, as the operation modes, for example, a "first drinking water mode", a "second drinking water mode", a "third drinking water mode", and a "cooking water mode" are provided. The "first drinking water mode" is a mode for generating drinking water having a dissolved hydrogen concentration of 100 ppb. Similarly, the "second drinking water mode" is a mode for generating drinking water having a dissolved hydrogen concentration of 200ppb, and the "third drinking water mode" is a mode for generating drinking water having a dissolved hydrogen concentration of 300 ppb. The "cooking water mode" is a mode in which cooking water is generated by maximum electrolysis current. Before the water is supplied to the electrolytic water generator 1, any one of the operation modes is selected. The selected operating mode is stored in the memory of the control device 6.
When the water supply to the electrolyzed water forming apparatus 1 is started, the control device 6 confirms the operation mode (S11), and the flow rate sensor 5 starts detecting the flow rate of the water supplied to the electrolytic cell 40 per unit time (S12). Thereby, a signal corresponding to the flow rate value is periodically input to the control device 6.
The control device 6 determines the electrolysis current to be supplied to the power feeding elements 41 and 42 based on the signal input from the flow sensor 5 (S13), and controls the electrolysis voltage (S14). Here, the above-mentioned electrolytic current differs depending on the selected operation mode.
Fig. 5 shows the relationship between the flow rate of water supplied to the electrolytic chamber 40 and the electrolytic current controlled by the control device 6 in each operation mode, and the relationship between the flow rate and the dissolved hydrogen concentration.
That is, the relationship between the flow rate of water and the electrolytic current in the "first drinking water mode" is shown by the chain line I1The relationship between the flow rate of water and the concentration of dissolved hydrogen is shown by the chain line D1And (4) showing. The relationship between the flow rate of water and the electrolytic current in the "second drinking water mode" is represented by the two-dot chain line I2The relationship between the flow rate of water and the concentration of dissolved hydrogen is shown by the two-dot chain line D2And (4) showing. Similarly, the relationship between the flow rate of water and the electrolytic current in the "third drinking water mode" is indicated by the three-dot chain line I3The relationship between the flow rate of water and the concentration of dissolved hydrogen is shown by the three-dot chain line D3And (4) showing. Further, the relationship between the flow rate of water in the "water for cooking mode" and the electrolytic current is shown by the dotted line I4The relationship between the flow rate of water and the concentration of dissolved hydrogen is shown by the dotted line D4And (4) showing.
In the present embodiment, the memory of the control device 6 stores data shown in fig. 5 as data indicating a correlation between the flow rate of water supplied to the electrolytic chamber 40, the electrolysis current supplied to the power feeding bodies 41 and 42, and the dissolved hydrogen concentration of the electrolyzed water generated in the cathode chamber 40 b. The control device 6 controls the electrolytic current supplied to the power feeding bodies 41 and 42 based on the signal input from the flow sensor 5 in accordance with each operation mode, with reference to the data stored in the memory.
That is, in the "first drinking water mode", the "second drinking water mode", and the "third drinking water mode", the control device 6 determines the electrolytic current using a linear function of the flow rate detected by the flow rate sensor 5.
As shown in fig. 5, a two-dot chain line I2Slope ratio of (1) dot-dash line I1Has a large slope, and is marked by a three-point line I3Slope ratio of (a) is a two-dot chain line I2The slope of (a) is large. 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 2 times, the constant a is also set to 2 times.
Then, the control device 6 determines the constant a of the linear function shown in the equation (1) based on the dissolved hydrogen concentration set by selecting the operation mode by the operation device 9. Thus, in any drinking water mode, electrolyzed water having a constant dissolved hydrogen concentration can be generated regardless of the flow rate of water supplied to the electrolysis chamber 40.
Even when any of the operation modes is selected, the process is ended when water supply is stopped, that is, when water supply to the electrolyzed water forming apparatus 1 is stopped (yes in S15), as in the operation shown in fig. 2. On the other hand, while water passage continues (no in S15), the process returns to S13 to determine the electrolysis current.
In the present embodiment, even when the user selects any drinking water mode, 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 forming apparatus 1A according to another embodiment of the present invention. The electrolyzed water forming apparatus 1A is different from the electrolyzed water forming apparatus 1 shown in fig. 1 in that it includes a first electrolytic bath 3 and a second electrolytic bath 4 connected in series to each other as a flow path of water.
The first electrolytic tank 3 has an electrolytic chamber 30 to which water purified by the purified water tank 2 is supplied. Inside the electrolytic chamber 30, an anode power feeder 31 and a cathode power feeder 32 are arranged facing each other. A separator 33 is disposed between the anode power feeder 31 and the cathode power feeder 32. The diaphragm 33 divides the electrolytic chamber 30 into an anode chamber 30a on the anode feeder 31 side and a cathode chamber 30b on the cathode feeder 32 side.
The separator 33 is made of a solid polymer material containing a fluorine-based resin having a sulfonic acid group, for example. In the electrolytic cell 3 having the separator 33 using a solid polymer material, neutral electrolytic water is generated.
In the cathode chamber 30b, hydrogen gas is produced by the electrolysis of water, which is dissolved in the water in the cathode chamber 30 b. On the other hand, in the anode chamber 30a, oxygen gas is generated by the electrolysis of water, and is dissolved in the water in the anode chamber 30 a. Thereby, electrolytic hydrogen-rich water is generated in the cathode chamber 30b, and electrolytic oxygen-rich water is generated in the anode chamber 30 a.
The second electrolytic tank 4 is disposed on the downstream side of the first electrolytic tank 3. The second electrolytic tank 4 has the same structure as the electrolytic tank 4 of the first embodiment.
The anode chamber 30a of the first electrolytic cell 3 is connected to the anode chamber 40a of the second electrolytic cell 4, and the cathode chamber 30b of the first electrolytic cell 3 is connected to the cathode chamber 40b of the second electrolytic cell 4. Therefore, the electrolytic oxygen-enriched water generated in the anode chamber 30a is supplied to the anode chamber 40a, and the electrolytic hydrogen-enriched water generated in the cathode chamber 30b is supplied to the cathode chamber 40 b.
The flow rate of water supplied to first electrolytic tank 3 per unit time is detected by flow sensor 5 provided between clean water tank 2 and first electrolytic tank 3.
The second electrolytic bath 4 increases the dissolved gas concentration of the electrolyzed water produced in the first electrolytic bath 3. At this time, the electrolyzed water produced in the anode chamber 40a is acidic, and the electrolyzed water produced in the cathode chamber 40b is alkaline.
A current detection device 71 is provided in a current supply line between the anode power supply body 31 and the control device 6. Similarly, a current detection device 72 is provided in the current supply line between the anode power supply body 41 and the control device 6. The current detection means 71, 72 may also be arranged on the current supply line between the cathode current supplies 32, 42 and the control device 6.
The control device 6 performs feedback control of the voltage applied between the anode feeder 31 and the cathode feeder 32 based on the signal input from the current detection device 71. Further, the control device 6 performs feedback control of the voltage applied between the anode power feeder 41 and the cathode power feeder 42 based on the signal input from the current detection device 72. In this way, 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 controlled by the control device 6. Therefore, the electrolytic current supplied to the power feeding bodies 31 and 32 and the electrolytic current supplied to the power feeding bodies 41 and 42 are controlled by the control device 6.
The operation of controlling the electrolytic current supplied to the power feeding bodies 31 and 32 and the power feeding bodies 41 and 42 in the electrolyzed water forming apparatus 1A is the same as the operation shown in fig. 2 or 4. The relationship between the flow rate of water supplied to each of the electrolytic cells 3 and 4 and the electrolytic current controlled by the control device 6 and the relationship between the flow rate and the dissolved hydrogen concentration are the same as those in fig. 3 and 5.
The controller 6 determines the electrolytic current of the first electrolytic cell 3 by using the equation (2) which is a linear function of the flow rate detected by the flow rate sensor 5.
I＝a1×F+b1 (2)
Wherein,
a1: constant number
b1: a constant.
Similarly, the controller 6 determines the electrolytic current of the second electrolytic cell 4 by using the equation (3) which is a linear function of the flow rate detected by the flow rate sensor 5.
I＝a2×F+b2 (3)
Wherein,
a2: constant number
b2: a constant.
In this way, the controller 6 determines the electrolysis current of the first electrolytic bath 3 and the electrolysis current of the second electrolytic bath 4 using linear functions having different slope constants a. This enables the generation of an electrolyzed hydrogen-rich water having a constant dissolved hydrogen concentration regardless of the flow rate of water supplied to each of the electrolysis chambers 30 and 40. Further, since the first electrolytic bath 3 and the second electrolytic bath 4 can be controlled by different electrolytic currents, the respective constants a are appropriately set1、a2Electrolytic hydrogen-rich water of various dissolved hydrogen concentrations can be produced. For example, an electrolyzed hydrogen-rich water having a very high dissolved hydrogen concentration and a weak alkalinity can be produced.
The display device 8 of the second embodiment is the same as the display device 8 of the first embodiment shown in fig. 1. The display device 8 may display the dissolved hydrogen concentration of the electrolyzed hydrogen-rich water produced by the first electrolytic cell 3 alone, or may display the dissolved hydrogen concentrations of the electrolyzed hydrogen-rich water produced by the first electrolytic cell 3 and the second electrolytic cell 4. In either case, the dissolved hydrogen concentration displayed by the display device 8 can be calculated by the control device 6.
The operation device 9 of the second embodiment is the same as the operation device 9 of the first embodiment shown in fig. 1. The operation device 9 may be configured to be capable of independently selecting the operation modes of the first electrolytic tank 3 and the second electrolytic tank 4. With this configuration, it is possible to generate electrolytic hydrogen-rich water having various dissolved hydrogen concentrations.
The electrolyzed water forming apparatus 1 or 1A of the present invention has been described in detail above, but the present invention is not limited to the above specific embodiments and can be carried out in various modified embodiments. That is, the electrolyzed water forming apparatus 1 may be configured to include at least the electrolytic cell 4 in which the electrolytic chamber 40 is formed, the anode power supply 41 and the cathode power supply 42 which are arranged to face each other in the electrolytic chamber 40, the diaphragm 43 which is arranged between the anode power supply 41 and the cathode power supply 42 and divides the electrolytic chamber 40 into the anode chamber 40a and the cathode chamber 40b, the flow sensor 5 which detects a flow rate of water supplied to the electrolytic chamber 40 per unit time, and the control device 6 which controls the electrolytic current supplied to the power supplies 41, 42, and the control device 6 may be configured to control the electrolytic current based on the flow rate detected by the flow sensor 5, thereby adjusting the dissolved gas concentration of the electrolyzed water formed in the electrolytic chamber 40 to be constant.
In the electrolyzed water forming apparatus 1 shown in fig. 1 and the electrolyzed water forming apparatus 1A shown in fig. 6, the separator 43 may be made of a solid polymer material containing a fluorine-based resin having a sulfonic acid group. In this case, a neutral electrolytic hydrogen-rich water is generated by the electrolytic chamber 40.
As the information for determining the electrolytic current by the control device 6, instead of the information on the above equation (1), a table showing the correlation between the flow rate and the electrolytic current and the dissolved hydrogen concentration may be stored in the memory of the control device 6. 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 the form of a table, for example, and may be in the form of a graph shown in fig. 3, 5, or the like.

Claims (5)

1. An electrolytic water generator comprising:
an electrolytic tank formed with an electrolytic chamber supplied with water for electrolysis;
an anode feeder and a cathode feeder which are arranged to face each other in the electrolytic chamber;
a diaphragm disposed between the anode power feeder and the cathode power feeder and dividing the electrolytic chamber into an anode chamber on the anode power feeder side and a cathode chamber on the cathode power feeder side, wherein the electrolyzed water generating apparatus further comprises:
a flow rate sensor that detects a flow rate per unit time of water supplied to the electrolytic chamber;
a control device that controls an electrolysis current supplied to the anode power supply and the cathode power supply,
the electrolytic tank has a first electrolytic tank and a second electrolytic tank provided on the downstream side of the first electrolytic tank,
the anode chamber of the first electrolytic cell is connected with the anode chamber of the second electrolytic cell, the cathode chamber of the first electrolytic cell is connected with the cathode chamber of the second electrolytic cell,
the diaphragm of the first electrolytic cell generates neutral electrolyzed water by using a material containing a solid polymer,
the second electrolytic cell generates acidic electrolyzed water in the anode chamber and alkaline electrolyzed water in the cathode chamber,
the control device controls the electrolysis current based on the flow rate detected by the flow rate sensor to adjust the dissolved gas concentration of the electrolyzed water generated in the electrolysis chamber to be constant,
the control device respectively controls the electrolysis current of the first electrolytic tank and the electrolysis current of the second electrolytic tank,
the control device uses a linear function of the flow rate detected by the flow rate sensor
I＝a×F+b，
Determining the current of the electrolysis,
wherein,
i: electrolytic current
F: flow rate per unit time
a: constant number
b: the constant number is a constant number,
the electrolyzed water forming apparatus further includes an operation device for setting a dissolved gas concentration of the electrolyzed water formed in the electrolysis chamber by the electrolysis by a user,
the control device determines the constant a of the linear function based on the dissolved gas concentration set by the operation device.
2. The electrolyzed water forming apparatus according to claim 1,
further comprises a current detection device for detecting the electrolytic current,
the control device controls a voltage applied between the anode power supply and the cathode power supply so that the electrolytic current detected by the current detection device matches the determined electrolytic current.
3. The electrolyzed water forming apparatus according to claim 1,
the control device determines the electrolysis current of the first electrolytic cell and the electrolysis current of the second electrolytic cell by using the linear functions with different constants a.
4. The electrolyzed water forming apparatus according to claim 1,
the controller calculates a dissolved gas concentration of the electrolyzed water generated in the cathode chamber based on the flow rate detected by the flow rate sensor and the electrolysis current supplied to the anode power supply.
5. The electrolytic water generating apparatus according to claim 4,
the apparatus further includes a display unit for displaying the dissolved gas concentration calculated by the control unit.
CN201610086827.8A 2015-03-09 2016-02-16 Electrolyzed water generation device Active CN105948176B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-045627 2015-03-09
JP2015045627A JP6412447B2 (en) 2015-03-09 2015-03-09 Electrolyzed water generator

Publications (2)

Publication Number Publication Date
CN105948176A CN105948176A (en) 2016-09-21
CN105948176B true CN105948176B (en) 2021-10-22

Family

ID=56897966

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610086827.8A Active CN105948176B (en) 2015-03-09 2016-02-16 Electrolyzed water generation device

Country Status (3)

Country Link
JP (1) JP6412447B2 (en)
KR (1) KR20160110149A (en)
CN (1) CN105948176B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108602695B (en) * 2016-02-10 2022-02-01 松下知识产权经营株式会社 Electrolyzed water generation device
CN106249437A (en) * 2016-09-30 2016-12-21 福州品行科技发展有限公司 A kind of 3D glasses
JP6825871B2 (en) * 2016-10-12 2021-02-03 株式会社日本トリム Electrolyzed water generator
JP2018065106A (en) * 2016-10-20 2018-04-26 モレックス エルエルシー Three-tank type electrolyzed water production equipment
JP2018090506A (en) * 2016-11-30 2018-06-14 株式会社日本トリム Electrolytic hydrogen water
CN106587283A (en) * 2016-12-15 2017-04-26 中建水务（深圳）有限公司 Filter and control method
JP6836914B2 (en) * 2017-01-18 2021-03-03 株式会社日本トリム Water treatment equipment, dialysate preparation water production equipment and hydrogen water server
JP6853049B2 (en) * 2017-01-18 2021-03-31 株式会社日本トリム Electrolyzed water generator
JP6646826B2 (en) * 2017-05-09 2020-02-14 パナソニックＩｐマネジメント株式会社 Electrolyzed water generator
CN109136071A (en) * 2017-06-28 2019-01-04 高节义 It is electrolysed the method and system setting that methane is produced in three Room
JP6484296B2 (en) * 2017-07-05 2019-03-13 株式会社日本トリム Electrolyzed water generator
TWI635055B (en) * 2017-12-20 2018-09-11 周瑞勇 Method and apparatus for producing functional water containing oxygen and hydrogen
JP6962854B2 (en) 2018-04-11 2021-11-05 株式会社日本トリム Water prescription system and water prescription program
CN108996620A (en) * 2018-08-25 2018-12-14 湖南三五二环保科技有限公司 A kind of electrolyzed water machine and its electrolytic method
US12084361B2 (en) 2019-10-22 2024-09-10 Kyungdong Navien Co., Ltd. Apparatus and method for controlling water softener
KR20220140314A (en) * 2021-04-09 2022-10-18 삼성전자주식회사 Sterilizing water generator, water purifier and method for controlling the same
CN114705251B (en) * 2022-04-27 2022-11-25 北京雷动智创科技有限公司 Hydrogen production electrolytic tank state monitoring device and method
JP7348988B1 (en) 2022-05-11 2023-09-21 株式会社日本トリム Electrolyzed water generation equipment and water treatment equipment

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679279A (en) * 1992-09-03 1994-03-22 Sanyo Electric Co Ltd Alkaline ionized water generator
JPH06170367A (en) * 1992-12-01 1994-06-21 Matsushita Electric Works Ltd Ion water producer
JPH07124562A (en) * 1993-11-01 1995-05-16 Brother Ind Ltd Electrolytic water making machine
JPH09192667A (en) * 1996-01-24 1997-07-29 Mizu:Kk Electrolyzed water generating device
JPH11192484A (en) * 1997-12-27 1999-07-21 River Suton:Kk Electrolytic device
JP4378803B2 (en) 1999-09-02 2009-12-09 パナソニック電工株式会社 Alkaline ion water conditioner
KR100433856B1 (en) * 2000-07-07 2004-06-04 마츠시타 덴끼 산교 가부시키가이샤 Electrolytic liquid and apparatus for producing same
JP2002153874A (en) * 2000-09-06 2002-05-28 Oki Jushi Kogyo Kk Water sterilization method and water sterilizer
JP2002248471A (en) * 2001-02-23 2002-09-03 Hoshizaki Electric Co Ltd Electrolyzed water making apparatus
JP3816421B2 (en) * 2002-05-29 2006-08-30 アマノ株式会社 Electrolytic alkaline cleaning water generator
JP4194903B2 (en) * 2003-08-07 2008-12-10 アマノ株式会社 ELECTROLYTIC WATER FOR CLEANING, METHOD FOR GENERATING THE SAME, AND GENERATING DEVICE
JP2007098351A (en) * 2005-10-07 2007-04-19 Hoshizaki Electric Co Ltd Electrolytic water making apparatus equipped with diaphragm electrolytic cell and method for applying polarity to diaphragm which constitutes diaphragm electrolytic cell
US9056272B2 (en) * 2006-02-28 2015-06-16 Tarek A. Z. Farag Isotopes separation and purification in an electrolytic medium
JP2008086885A (en) * 2006-09-29 2008-04-17 Matsushita Electric Works Ltd Electrolytic water generator
KR100928685B1 (en) * 2009-04-24 2009-11-27 (주)한우물 A electrolysis water purifier
JP2011255354A (en) * 2010-06-11 2011-12-22 Panasonic Electric Works Co Ltd Electrolytic water generator
JP5714060B2 (en) * 2013-06-24 2015-05-07 株式会社日本トリム Dialysate preparation water production equipment
JP6196528B2 (en) * 2013-10-30 2017-09-13 株式会社日本トリム Dissolved hydrogen concentration measuring method and electrolyzed water generator

Also Published As

Publication number Publication date
KR20160110149A (en) 2016-09-21
JP6412447B2 (en) 2018-10-24
JP2016165667A (en) 2016-09-15
CN105948176A (en) 2016-09-21

Similar Documents

Publication Publication Date Title
CN105948176B (en) Electrolyzed water generation device
CN113412146B (en) Hydrogenation apparatus and method for determining consumption of hydrogen permeable membrane
JP6126635B2 (en) Electrolyzed water generator
JP2008086885A (en) Electrolytic water generator
WO2018016577A1 (en) Electrolyzed water generation device
JP2019013873A (en) Electrolytic water generator
KR102363215B1 (en) Functional water generator
JP5236663B2 (en) Electrolyzed water generator
JP2000317451A (en) Alkaline ionized water producer
US20200361795A1 (en) Electrolytic Water Production Device and a Method of Producing Electrolytic Water
JP7022089B2 (en) Method for determining the degree of wear of hydrogen addition device and hydrogen permeable membrane
CN110872143A (en) Electrolyzed water production device and electrolyzed water production method
JP7348988B1 (en) Electrolyzed water generation equipment and water treatment equipment
JP6836944B2 (en) Electrolyzed water generator
JP2009028598A (en) Electrolyzed water generating apparatus
JP2005169202A (en) Electrolytic water producing apparatus
JP2012223686A (en) Electrolyzed water generation device
KR100889215B1 (en) Apparatus and method for controlling ph concentration of ion water purifier
JP6154837B2 (en) Electrolyzed water generator
JPH11244857A (en) Electrolyzed ionic water producing implement
JP2001070939A (en) Alkali ion water conditioner
CN118234685A (en) Electrolytic water producing device and control method for electrolytic water producing device
JPH10309580A (en) Alkali ion water generator
JP2005152794A (en) Alkali ion water generator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TG01 Patent term adjustment
TG01 Patent term adjustment