CN108473344B - Electrolyzed water production device and device for producing water for dialysate preparation using same - Google Patents
Electrolyzed water production device and device for producing water for dialysate preparation using same Download PDFInfo
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- CN108473344B CN108473344B CN201780004694.8A CN201780004694A CN108473344B CN 108473344 B CN108473344 B CN 108473344B CN 201780004694 A CN201780004694 A CN 201780004694A CN 108473344 B CN108473344 B CN 108473344B
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Abstract
The electrolyzed water production device (1) is provided with a plurality of electrolysis chambers (30, 40, … …) for electrolyzing water. The electrolytic chambers (30, 40, … …) are provided with: a first power feeder (31, 41, … …) and a second power feeder (32, 42, … …) that are disposed opposite to each other; and a diaphragm (33, 43, … …) that divides the electrolytic chamber (30, 40, … …) into a first pole chamber (30A, 40A, … …) on the first power supply body (31, 41, … …) side and a second pole chamber (30B, 40B, … …) on the second power supply body (32, 42, … …) side. The separators (33, 43, … …) are solid polymer membranes. At least two electrolysis chambers (30, 40) are connected by a parallel water passage (51) that connects the first pole chambers (30A, 40A) in parallel and a series water passage (55) that connects the second pole chambers (30B, 40B) in series.
Description
Technical Field
The present invention relates to an electrolyzed water production apparatus and the like that electrolyzes water to produce electrolyzed water.
Background
There is conventionally known an electrolyzed water forming apparatus which includes an electrolytic cell having an electrolytic chamber partitioned by a diaphragm and which forms an electrolyzed water containing hydrogen dissolved therein by electrolyzing tap water or the like supplied to the electrolytic chamber. For example, patent document 1 discloses an electrolytic water generator including two electrolytic tanks connected in series to increase the concentration of dissolved hydrogen.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 4417707
In the above electrolytic water producing apparatus, the electrolytic hydrogen water is produced in the cathode chamber in which the cathode power supply is disposed. At this time, oxygen is generated by electrolysis in the anode chamber in which the anode power supply is disposed. Oxygen gas is dissolved into the electrolytic water in the anode chamber and discharged from the anode chamber together with the electrolytic water.
In general, when the hydrogen electrolysis water generated in the cathode chamber is used, the electrolysis water additionally generated in the anode chamber is discarded. Therefore, in the electrolytic water generator, the efficiency of water use is improved by providing a flow rate control valve or the like for restricting the water supplied to the anode chamber.
When the water supplied to the anode chamber is restricted by the flow rate control valve, the dissolved oxygen concentration of the electrolyzed water in the anode chamber is saturated, and a large amount of oxygen in the form of bubbles not dissolved in the electrolyzed water is generated. In this case, since the flow of water in the anode chamber is suppressed, it is difficult to discharge oxygen in the form of bubbles from the anode chamber together with the electrolyzed water, and oxygen in the form of bubbles is accumulated in the anode chamber. When such oxygen in the form of bubbles remains in a state of adhering to the surface of the anode power supply body or the like, water supplied to the surface of the power supply body decreases, and therefore there is a possibility that electrolysis in the electrolytic chamber is significantly suppressed.
In particular, in the electrolytic water generator including two electrolytic tanks connected in series as disclosed in patent document 1, since the water path of the anode side including the two anode chambers is long, the tendency of oxygen in a bubble state to be accumulated in the anode chambers is promoted, and it is difficult to increase the dissolved hydrogen concentration.
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in view of the above circumstances, and an object thereof is to provide an electrolyzed water forming apparatus capable of improving the concentration of dissolved hydrogen while improving the efficiency of water use.
Means for solving the problems
A first aspect of the present invention is an electrolyzed water forming apparatus including a plurality of electrolysis chambers for electrolyzing water, wherein: a first power supply and a second power supply arranged to face each other; and a diaphragm that divides the electrolytic chamber into a first pole chamber on the first power supply side and a second pole chamber on the second power supply side, at least two of the electrolytic chambers being connected by a parallel water path that connects the first pole chambers in parallel and a series water path that connects the second pole chambers in series.
In the electrolytic water generator according to the present invention, it is preferable that the electrolytic water generator further includes a flow rate adjusting means for adjusting an amount of water supplied to the first pole chambers connected in parallel.
In the electrolytic water generator according to the present invention, it is preferable that the electrolytic water generator further includes an exhaust unit for separating the electrolytic water generated in the first pole chambers connected in parallel from the gas and discharging the separated gas.
In the electrolytic water generator according to the present invention, it is preferable that at least two of the electrolysis chambers are arranged in the vertical direction.
A second aspect of the present invention is a manufacturing apparatus for dialysate preparation water, comprising: the electrolyzed water generation apparatus; and a filtering unit that filters the electrolyzed water generated in the second pole chambers connected in series.
A third aspect of the present invention is a method for generating electrolyzed water by electrolyzing water using a plurality of electrolysis chambers, wherein: a first power supply and a second power supply arranged to face each other; and a diaphragm that divides the electrolytic chamber into a first pole chamber on the first power supply side and a second pole chamber on the second power supply side, the method including: a first step of supplying water in parallel to each first pole chamber and a second step of supplying water in series to each second pole chamber, among the at least two electrolytic chambers.
Effects of the invention
An electrolyzed water forming apparatus according to a first aspect of the present invention includes a plurality of electrolysis chambers, each of which has disposed therein: a first power supply and a second power supply arranged to face each other; and a diaphragm dividing the electrolytic chamber into a first pole chamber and a second pole chamber. At least two of the electrolysis chambers are connected by a parallel water path that connects the first pole chambers in parallel and a series water path that connects the second pole chambers in series.
As the water is electrolyzed, gas is generated in the first and second pole chambers and dissolves into the electrolyzed water. In this case, since at least two second pole chambers are connected in series by the series water passage, the dissolved concentration of the gas generated in the second pole chambers tends to increase as the electrolytic water moves from the upstream second pole chamber to the downstream second pole chamber. For example, when the second power supply is a cathode power supply, the dissolved concentration of hydrogen gas generated in the cathode chamber tends to increase.
In addition, since at least two first pole chambers are communicated in parallel by the parallel water passage, the water passage on the first pole side is shortened. Therefore, the gas generated in the first pole is rapidly discharged from the first pole chamber. Therefore, sufficient water is supplied to the surface of the first power supply body, so that electrolysis within the electrolytic chamber is efficiently performed. Thus, the dissolved concentration of the gas generated in the second electrode chamber can be easily increased as described above.
The apparatus for producing water for dialysate preparation according to the second aspect of the present invention includes the electrolytic water producing apparatus, and therefore can easily produce water for dialysate preparation having a high dissolved concentration of gas generated in the second pole chamber.
The electrolyzed water production method according to the third aspect of the present invention produces electrolyzed water by electrolyzing water using a plurality of electrolysis chambers. Each electrolytic chamber is provided with: a first power supply and a second power supply arranged to face each other; and a diaphragm dividing the electrolytic chamber into a first pole chamber and a second pole chamber. And, includes: a first step of supplying water in parallel to each of the first pole chambers in at least two electrolysis chambers; and a second step of supplying water to the second electrode chambers in series.
Therefore, as in the first invention, since water is supplied in series to at least two second electrode chambers in the second step, the dissolved concentration of the gas generated in the second electrode chambers is easily increased. In addition, since water is supplied in parallel to at least two first electrode chambers in the first step, sufficient water is supplied to the surface of the first power supply body, electrolysis in the electrolytic chamber is efficiently performed, and the dissolved concentration of the gas generated in the second electrode chamber is easily increased.
Drawings
Fig. 1 is a view showing a schematic configuration of a flow path of an electrolyzed water forming apparatus according to an embodiment of the first invention.
Fig. 2 is a block diagram showing an electrical configuration of the electrolyzed water forming apparatus of fig. 1.
Fig. 3 is a diagram showing an electrolyzed water forming apparatus in a state where water is being electrolyzed.
Fig. 4 is a view showing a schematic configuration of a flow path in a modification of the electrolyzed water forming apparatus.
FIG. 5 is a view showing a schematic configuration of a flow path in another modification of the electrolyzed water forming apparatus.
FIG. 6 is a view showing a schematic configuration of a flow path in a further modification of the electrolyzed water forming apparatus.
Fig. 7 is a block diagram showing a schematic configuration of an embodiment of a manufacturing apparatus for water for dialysate preparation according to an embodiment of the second invention.
Detailed Description
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
(first invention)
Fig. 1 shows a schematic configuration of a flow path of an electrolyzed water forming apparatus 1 according to an embodiment of the present invention. The electrolyzed water forming apparatus 1 is widely used for the formation of drinking water for home use, for example, in addition to the production of water for preparing dialysate.
The electrolyzed water forming apparatus 1 is provided with a plurality of electrolytic cells 3, 4, … …. Fig. 1 shows an electrolyzed water forming apparatus 1 provided with a pair of electrolytic cells 3 and 4. The electrolyzed water forming apparatus 1 may be provided with 3 or more electrolytic cells 3, 4, … ….
The electrolytic cell 3 has: an electrolysis chamber 30 for electrolyzing water; a first power supply body 31 and a second power supply body 32 disposed opposite to each other in the electrolytic chamber 30; and a diaphragm 33 that divides the electrolytic chamber 30 into a first pole chamber 30A on the first power feeder 31 side and a second pole chamber 30B on the second power feeder 32 side.
The first power feeder 31 and the second power feeder 32 are made of, for example, a power feeder in which a platinum plating layer is formed on the surface of a mesh metal such as a metal mesh made of titanium or the like. The first and second power feeding members 31 and 32 having such a mesh shape can spread water over the surface of the separator 33 while sandwiching the separator 33 therebetween, thereby promoting electrolysis in the electrolysis chamber 30.
One of the first power feeder 31 and the second power feeder 32 is used as an anode power feeder, and the other is used as a cathode power feeder. Water is supplied to both the first pole chamber 30A and the second pole chamber 30B of the electrolytic chamber 30, and a dc voltage is applied to the first power feeder 31 and the second power feeder 32, whereby water electrolysis occurs in the electrolytic chamber 30.
The separator 33 is a solid polymer film made of, for example, a fluororesin having a sulfonic acid group. Plating layers made of platinum are formed on both surfaces of the diaphragm 33. The plated layer of the diaphragm 33 is in contact with and electrically connected to the first power supply body 31 and the second power supply body 32. The membrane 33 passes ions generated by electrolysis. The first power supply body 31 and the second power supply body 32 are electrically connected via the diaphragm 33. When the separator 33 made of a solid polymer material is used, the dissolved hydrogen concentration can be increased without increasing the pH of the electrolytic hydrogen water. This hydrogen-electrolyzed water is suitable for reduction of oxidative stress in a patient under dialysis treatment.
Hydrogen and oxygen are generated by electrolysis of water in the electrolysis chamber 30. For example, in the case where the first power supply body 31 is applied as an anode power supply body, in the first electrode chamber 30A, oxygen gas is generated, thereby generating electrolytic oxygen water in which oxygen gas is dissolved. On the other hand, in the second electrode chamber 30B, hydrogen gas is generated, thereby generating hydrogen electrolysis water in which hydrogen gas is dissolved. In the case where the first power supply body 31 is applied as a cathode power supply body, in the first electrode chamber 30A, hydrogen gas is generated, thereby generating hydrogen electrolyzed water in which hydrogen gas is dissolved. On the other hand, in the second electrode chamber 30B, oxygen gas is generated, and electrolytic oxygen water in which oxygen gas is dissolved is generated.
The electrolytic cell 4 includes, in an electrolytic chamber 40 for electrolyzing water: a first power feeder 41 and a second power feeder 42 disposed to face each other; and a diaphragm 43 that divides the electrolytic chamber 40 into a first pole chamber 40A on the first power feeder 41 side and a second pole chamber 40B on the second power feeder 42 side.
The first power feeder 41, the second power feeder 42, and the diaphragm 43 have the same configurations as the first power feeder 31, the second power feeder 32, and the diaphragm 33 described above. One of the first power feeder 41 and the second power feeder 42 is to be used as an anode power feeder, and the other is used as a cathode power feeder. Water is supplied to both the first pole chamber 40A and the second pole chamber 40B of the electrolytic chamber 40, and a dc voltage is applied to the first power feeder 41 and the second power feeder 42, whereby electrolysis of water occurs in the electrolytic chamber 40.
When the electrolyzed water forming apparatus 1 is used for forming electrolyzed hydrogen water for drinking, one of the separators 33 and 43 may be formed of, for example, a Polytetrafluoroethylene (PTFE) hydrophilic film.
The first power supplier 41 has the same polarity as the first power supplier 31, and the second power supplier 42 has the same polarity as the second power supplier 32. The operation of the electrolytic cell 4 in the case where the first power feeder 41 is applied as an anode power feeder and the case where the first power feeder 41 is applied as a cathode power feeder is the same as the operation of the electrolytic cell 3.
The electrolysis chambers 30 and 40 are connected by a parallel water passage 51 and a series water passage 55.
The parallel water passage 51 communicates the first pole chamber 30A and the first pole chamber 40A in parallel. The parallel water passage 51 includes: a parallel water passage 52 connecting the first pole chamber 30A and the first pole chamber 40A on the upstream side; and a parallel water passage 53 connecting the first pole chamber 30A and the first pole chamber 40A on the downstream side.
The series water passage 55 connects an upper end of the first pole chamber 30A and a lower end of the first pole chamber 40A. The series water passage 55 connects the second pole chamber 30B and the second pole chamber 40B in series. In the electrolyzed water forming apparatus 1 shown in fig. 1, water flowing out of the second pole chamber 30B on the upstream side flows into the second pole chamber 40B on the downstream side through the serial water passage 55.
The electrolyzed water forming apparatus 1 includes: a water supply path 20 for supplying water to be electrolyzed to the electrolysis chambers 30 and 40; and drainage paths 61 and 65 for discharging the electrolytic water from the electrolytic chambers 30 and 40.
Raw water is supplied from the water supply path 20 to the electrolyzed water forming apparatus 1. Tap water is generally used as the raw water, and well water, ground water, and the like can be used, for example. When the electrolytic water generator 1 is used to generate electrolytic hydrogen water for drinking, a water purification cartridge or the like for purifying raw water is appropriately provided in the water supply path 20.
The water supply passage 20 is branched into a water supply passage 21 and a water supply passage 22. The water supply path 21 is connected to the parallel water path 52 on the upstream side. The water supply passage 22 is connected to the lower end of the second pole chamber 30B. The water flowing into the water supply passage 20 flows into the first pole chamber 30A, the second pole chamber 30B, and the first pole chamber 40A through the water supply passages 21 and 22 and the parallel water passage 52.
The drain passage 61 is connected to the downstream parallel water passage 53. The water flowing out of the first pole chamber 30A and the first pole chamber 40A merges in the parallel water passage 53 and flows into the water discharge passage 61. The drain passage 65 is connected to an upper end portion of the second pole chamber 40B. The water flowing out of the second pole chamber 40B flows into the drainage channel 65. In the electrolyzed water forming apparatus 1, the direction of the water flow in the second pole chambers 30B and 40B coincides with the direction of movement of the hydrogen gas formed in the second pole chambers 30B and 40B, and therefore the hydrogen gas is efficiently discharged from the second pole chambers 30B and 40B. This suppresses the accumulation of hydrogen gas generated in the second electrode chambers 30B and 40B on the surfaces of the second power feeding members 32 and 42. Therefore, water is sufficiently supplied to the surfaces of the second power supply bodies 32 and 42, and electrolysis can be efficiently performed in the electrolysis chambers 30 and 40, thereby increasing the dissolved hydrogen concentration.
Fig. 2 shows a circuit for supplying electrolytic current to the power feeding bodies 31, 32 and the power feeding bodies 41, 42. The electrolytic current I supplied to the power feeding members 31, 32 and the power feeding members 41, 42 is controlled by the control unit 10. The control unit 10 is connected to the power supply unit 11. The power supply unit 11 supplies electric power to the control unit 10 and the power feeding bodies 31, 32, 41, 42, and the like.
In the present embodiment, power feeding bodies 31 and 32 are connected in series to power feeding bodies 41 and 42. That is, the control unit 10 is connected to the power feeder 41, the power feeder 42 is connected to the power feeder 31, and the power feeder 32 is connected to the control unit 10.
The control unit 10 manages control of the power feeding units 31 and 32 and the power feeding units 41 and 42. The control Unit 10 includes, for example, a CPU (Central Processing Unit) that executes various arithmetic Processing and information Processing, a memory that stores a program for managing the operation of the CPU and various information, and the like.
The control unit 10 controls, for example, the polarities of the first power feeding members 31, 41 and the second power feeding members 32, 42.
By changing the polarities of the first power feeding members 31, 41 and the second power feeding members 32, 42, it is possible to discharge the required electrolyzed water of the electrolyzed hydrogen water and the electrolyzed oxygen water from the water discharge passage 65 and discharge the unnecessary electrolyzed water from the water discharge passage 61.
Hereinafter, unless otherwise specified, a case where the first power feeder 31, 41 is applied as an anode power feeder is explained, but the same is true for a case where the first power feeder 31, 41 is applied as a cathode power feeder.
A current detection unit 12 is provided on a current supply line between the first power supply body 41 and the control unit 10. The current detection means 12 may be provided on a current supply line between the second power supply body 42 and the first power supply body 31, or between the second power supply body 32 and the control unit 10. The current detection means 12 detects the electrolytic current I supplied to the power feeding members 31, 32 and the power feeding members 41, 42, and outputs an electric signal corresponding to the detected value to the control unit 10.
The control unit 10 controls the dc voltages applied to the power feeding members 31 and 32 and the power feeding members 41 and 42, for example, based on the electric signals output from the current detection means 12. More specifically, the control unit 10 performs feedback control of the dc voltage applied to the power feeding members 31 and 32 and the power feeding members 41 and 42 so that the electrolytic current I detected by the current detection means 12 becomes a desired value, based on a dissolved hydrogen concentration set in advance. For example, when the electrolysis current I is excessively large, the control unit 10 decreases the voltage, and when the electrolysis current I is excessively small, the control unit 10 increases the voltage. Thereby, the electrolytic current I supplied to the power feeding members 31, 32 and the power feeding members 41, 42 is appropriately controlled.
In the present embodiment, since the power feeding bodies 31 and 32 are connected in series to the power feeding bodies 41 and 42, the same electrolysis current I is supplied to the two electrolysis chambers 30 and 40. This can simplify the operation of the control unit 10.
Fig. 3 shows the electrolyzed water forming apparatus 1 in a state where water is being electrolyzed. As has been described, by electrolyzing water in the electrolytic chambers 30, 40, oxygen gas is generated in the first pole chambers 30A, 40A, and the oxygen gas is dissolved in the electrolytic water, whereby electrolytic oxygen water is generated, and the electrolytic oxygen water is discharged from the water discharge path 61. On the other hand, in the second pole chambers 30B, 40B, hydrogen gas is produced, and the hydrogen gas is dissolved in electrolytic water, thereby generating electrolytic hydrogen water, and the electrolytic hydrogen water is discharged from the discharge path 65.
In the present embodiment, since the two second pole chambers 30B and 40B are connected in series by the series water passage 55, the dissolved hydrogen concentration of the hydrogen electrolysis water is likely to increase as the hydrogen electrolysis water moves from the second pole chamber 30B on the upstream side to the second pole chamber 40B on the downstream side. This electrolytic hydrogen water having a high dissolved hydrogen concentration is suitable for production of water for producing dialysate and production of drinking water for home use. In the case where the electrolyzed water forming apparatus 1 includes 3 or more electrolysis cells 3, 4, … …, the second pole chambers 30B, 40B, … … may be connected in series. In the electrolyzed water forming apparatus 1, the dissolved hydrogen concentration of the electrolyzed hydrogen water is further increased.
However, when the dissolved oxygen concentration of the electrolytic water is saturated in the second electrode chamber 30B and the second electrode chamber 40B, the oxygen gas O in the form of bubbles not dissolved in the electrolytic water is generated. When the flow path cross-sectional area of the water supply path 21 or the parallel water path 52 is set to be small in order to improve the water use efficiency, the tendency of the oxygen gas O in the bubble state to be generated is promoted. When such oxygen gas O in the form of bubbles remains on the surfaces of the first power feeding members 31 and 41, etc., it is difficult to sufficiently feed water, and there is a possibility that electrolysis in the electrolytic cell is suppressed.
In the present embodiment, the two first pole chambers 30A and 40A are connected in parallel by the parallel water passage 51, and therefore the water passage on the anode side is shortened. Therefore, the oxygen gas O generated in the first pole chamber 30A and the oxygen gas O generated in the first pole chamber 40A are quickly discharged from the parallel water passage 53 on the downstream side to the drain passage 61. Therefore, the retention of the oxygen gas O in the first electrode chambers 30A and 40A is suppressed, and sufficient water is supplied to the surfaces of the first power supply members 31 and 41, so that the electrolysis in the electrolysis chambers 30 and 40 is efficiently performed. Thus, as described above, the concentration of the hydrogen gas dissolved in the second pole chambers 30B and 40B can be easily increased. When the electrolytic water generator 1 has 3 or more electrolytic cells 3, 4, … …, it is preferable that the first pole chambers 30A, 40A, … … be connected in parallel. In the electrolyzed water forming apparatus 1, the oxygen gas O is rapidly discharged from the first pole chambers 30A, 40A, and … …, and the electrolysis in the electrolysis chambers 30, 40, and … … is efficiently performed.
Fig. 4 shows an electrolyzed water forming apparatus 1A as a modification of the electrolyzed water forming apparatus 1. The electrolyzed water forming apparatus 1A further includes: a flow rate adjusting unit 71 for adjusting the amount of water supplied to the first pole chambers 30A, 40A; and an exhaust unit 72 for separating and exhausting gas from the electrolytic water generated in the first pole chambers 30A, 40A, which is different from the electrolytic water generating apparatus 1. The electrolyzed water forming apparatus 1A may be configured as described above for the portions not described below.
The flow rate adjusting unit 71 is provided in the water supply path 21. The flow rate adjusting unit 71 may be constituted by, for example, a valve or the like that uses electromagnetic force as a power source or that manually adjusts the flow rate of the water supply path 21. By providing the flow rate adjusting unit 71, the amount of water supplied to the first pole chambers 30A and 40A can be accurately adjusted. Therefore, water discharged to the drainage path 61 can be suppressed, and water use efficiency can be improved. The flow rate adjusting unit 71 may be provided in the drainage channel 61. In this case, the flow rate adjusting unit 71 adjusts the amount of water supplied to the first pole chambers 30A and 40A by adjusting the flow rate of the water in the water discharge channel 61.
The gas discharge unit 72 includes a so-called purge valve for separating and discharging oxygen O from electrolytic water generated in the first pole chambers 30A, 40A. This suppresses the retention of oxygen O generated in the first electrode chambers 30A and 40A on the surfaces of the first power feeding members 31 and 41. Therefore, water is sufficiently supplied to the surfaces of the first power feeding members 31 and 41, and electrolysis can be efficiently performed to increase the dissolved hydrogen concentration. In the present embodiment, since the exhaust unit 72 is provided in the drain passage 61 connected to the downstream side of the parallel water passage 51, the oxygen O generated in the first polar chambers 30A and 40A is rapidly discharged by the single exhaust unit 72. Therefore, the dissolved hydrogen concentration can be easily increased by an inexpensive and simple structure.
In addition, in the electrolyzed water forming apparatus 1A, either the flow rate adjusting unit 71 or the exhaust unit 72 may be omitted.
Fig. 5 shows an electrolyzed water forming apparatus 1B as another modification of the electrolyzed water forming apparatus 1. In the electrolyzed water forming apparatus 1B, the electrolysis chambers 30 and 40 are arranged in the vertical direction. The electrolyzed water forming apparatus 1B may be configured as described above with respect to the electrolyzed water forming apparatus 1 or 1A, which is not described below.
In the electrolyzed water forming apparatus 1B, the direction of the water flow in the series water passage 55 coincides with the direction of movement of the hydrogen gas formed in the second pole chamber 30B, and therefore the hydrogen gas is efficiently discharged from the second pole chamber 30B. This suppresses the hydrogen gas generated in the second electrode chamber 30B from staying on the surface of the second power supply body 32. Therefore, water is sufficiently supplied to the surface of the second power supply element 32, and electrolysis can be efficiently performed to increase the dissolved hydrogen concentration.
Fig. 6 shows an electrolyzed water forming apparatus 1C as still another modification of the electrolyzed water forming apparatus 1. The electrolyzed water forming apparatus 1C includes a plurality of electrolysis chamber groups X, Y, … … each including an electrolysis chamber 30, 40. The electrolyzed water forming apparatus 1C of the present embodiment includes a pair of electrolysis chamber groups X, Y. The electrolytic water generator 1C may be configured as described above with respect to the electrolytic water generators 1 to 1B, which are not described below.
The electrolytic cell groups X, Y are connected in parallel as flow paths. The electrolyzed water forming apparatus 1C can form a large amount of electrolyzed hydrogen water having a high dissolved hydrogen concentration.
The power feeding bodies 31, 32 and 41, 42 of the electrolytic cell group X and the power feeding bodies 31, 32 and 41, 42 of the electrolytic cell group Y are connected in series as an electric circuit. Thus, the same electrolytic current I is supplied to the electrolytic cells 30 and 40 of the group X and the electrolytic cells 30 and 40 of the group Y. This can simplify the operation of the control unit 10.
The number of the electrolytic cell groups X, Y, … … connected in parallel as flow paths may be 3 or more. In this case, the power feeding bodies 31, 32 and the power feeding bodies 41, 42 of all the electrolytic cell groups X, Y, … … may be connected in series, or the power feeding bodies 31, 32 and the power feeding bodies 41, 42 of each of some of the electrolytic cell groups X, Y, … … may be connected in series.
The electrolyzed water forming apparatus 1C may further include a flow rate adjusting unit 71 and an exhaust unit 72, as in the electrolyzed water forming apparatus 1A. In this case, the flow rate adjusting unit 71 is provided in the water supply path 21 or the water discharge path 61. With the configuration in which the flow rate adjusting unit 71 is provided in the water discharge channel 61, the flow rate of water in the water supply channel 21 can be adjusted in the plurality of electrolytic cell groups X, Y, … … by the single flow rate adjusting unit 71, and the configuration of the electrolyzed water generation apparatus 1C can be simplified. The exhaust unit 72 is provided in the water discharge passage 61.
(second invention)
Fig. 7 shows a schematic configuration of an embodiment of a manufacturing apparatus for water for dialysate preparation according to a second aspect of the present invention. The manufacturing apparatus 200 includes the electrolyzed water forming apparatus 1 according to the first embodiment of the present invention. The manufacturing apparatus 200 manufactures dialysate preparation water in which the hydrogen water generated by the electrolyzed water generating apparatus 1 is mixed with the dialysis raw material. In the manufacturing apparatus 200, any of the electrolyzed water forming apparatuses 1A to 1C may be used instead of the electrolyzed water forming apparatus 1.
The production apparatus 200 includes the electrolyzed water production apparatus 1, a water softening apparatus 201, an activated carbon treatment apparatus 202, a pressure pump 203, a reverse osmosis membrane module 204, and the like.
Raw water such as tap water is supplied to the water softening device 201. The demineralizer 201 removes hardness components such as calcium ions and magnesium ions from raw water to demineralize the raw water.
The activated carbon treatment apparatus 202 has activated carbon as a fine porous substance, and adsorbs and removes chlorine and the like from the water supplied from the water softening apparatus 201. The water having passed through the activated carbon treatment apparatus 202 is sent to the electrolytic water production apparatus 1 and electrolyzed.
The pressurizing pump 203 pressurizes and conveys the hydrogen water generated in the second pole chamber 40B of the electrolyzed water generating apparatus 1 to the reverse osmosis membrane module 204. The reverse osmosis membrane module 204 has a reverse osmosis membrane (filtration unit: not shown). The reverse osmosis membrane filters the water pressurized and fed by the pressure pump 203. That is, the reverse osmosis membrane removes a small amount of impurities such as metals from the hydrogen electrolysis water pressurized and fed by the pressure pump 203, thereby filtering the hydrogen electrolysis water. The electrolyzed hydrogen water subjected to filtration through the reverse osmosis membrane is supplied to the dilution device 300.
The dilution device 300 is provided outside the manufacturing apparatus 200, for example. The dilution device 300 dilutes the dialysis raw material with the electrolyzed hydrogen water purified by the reverse osmosis membrane module 204. The dialyzing raw material is diluted by the diluting device 300 using electrolytic hydrogen water, thereby preparing a dialysate.
Since the production apparatus 200 includes the electrolyzed water production apparatus 1, the water for preparing dialysate having a high dissolved hydrogen concentration can be easily produced.
(third invention)
Hereinafter, an embodiment of a method for producing electrolyzed water according to a third aspect of the present invention will be described. As shown in fig. 1 to 3, the electrolytic water generation method generates electrolytic water by electrolyzing water using a plurality of electrolysis chambers 30, 40, … …. The electrolytic cells 30, 40, … … can be configured as the electrolytic cells 30, 40, … … of the above-described electrolytic water generators 1 to 1B.
As shown in fig. 3, the present embodiment includes: a first step S1 of supplying water in parallel to the first pole chambers 30A, 40A, … … in at least two electrolysis chambers 30, 40, … …; and a second step S2 of supplying water in series to the second pole chambers 30B, 40B, and … …. In the present embodiment, the first step S1 and the second step S2 are performed simultaneously. The first step S1 and the second step S2 are performed simultaneously with the electrolysis in the electrolysis chambers 30, 40, … …. After the first step S1, the second step S2 may be performed, or after the second step S2, the first step S1 may be performed.
According to the present embodiment, as in the first invention, since water is supplied in series to at least two second pole chambers 30B, 40B, … … in the second step S2, the dissolved concentration of hydrogen gas generated in the second pole chambers 30B, 40B, … … is easily increased. In addition, since water is supplied in parallel to at least two first pole chambers 30A, 40A, … … in the first step S1, the water passage on the anode side is shortened. Therefore, the oxygen gas O generated in the first pole chamber 30A and the oxygen gas O generated in the first pole chamber 40A are quickly discharged from the parallel water passage 53 on the downstream side to the drain passage 61. Therefore, the retention of the oxygen gas O in the first electrode chambers 30A and 40A is suppressed, sufficient water is supplied to the surfaces of the first power feeding members 31 and 41, and the electrolysis in the electrolysis chambers 30 and 40 is efficiently performed. This facilitates an increase in the dissolved concentration of the hydrogen gas generated in the second pole chambers 30B, 40B, and … ….
While the embodiments of the present invention have been described in detail, the present invention is not limited to the specific embodiments described above, and can be implemented in various forms. That is, the electrolyzed water forming apparatus 1 only needs to include at least a plurality of electrolysis chambers 30, 40, … … for electrolyzing water, and each of the electrolysis chambers 30, 40, … … is provided with: first power conductors 31, 41, … … and second power conductors 32, 42, … … disposed to face each other; and separators 33, 43, … … that divide electrolysis chambers 30, 40, … … into first pole chambers 30A, 40A, … … on the first power feeder 31, 41, … … side and second pole chambers 30B, 40B, … … on the second power feeder 32, 42, … … side, at least two electrolysis chambers 30, 40 may be connected by a parallel water passage 51 that connects first pole chambers 30A, 40A in parallel and a series water passage 55 that connects second pole chambers 30B, 40B in series.
1 electrolyzed water producing apparatus
30 electrolytic chamber
30A first pole chamber
30B second pole chamber
31 first power supply body
32 second power supply body
33 diaphragm
40 electrolytic chamber
40A first polar chamber
40B second pole chamber
41 first power supply body
42 second power supply body
43 diaphragm
51 parallel water path
55 series waterway
71 flow regulating unit
72 exhaust unit
Claims (5)
1. An electrolyzed water forming apparatus comprising a plurality of electrolysis chambers for electrolyzing water, characterized in that,
each electrolytic chamber is provided with: a first power supply and a second power supply arranged to face each other; and a diaphragm that divides the electrolytic chamber into a first pole chamber on the first power supply side and a second pole chamber on the second power supply side,
at least two of the electrolysis chambers are connected by a parallel waterway and a series waterway, the parallel waterway connects the first pole chambers in parallel, the series waterway connects the second pole chambers in series,
the second electrode chamber on the upstream side is partitioned by a solid polymer membrane made of a fluororesin having a sulfonic acid group,
the second pole chamber on the downstream side is divided by a polytetrafluoroethylene hydrophilic film.
2. The electrolyzed water forming apparatus according to claim 1,
the electrolyzed water production apparatus further includes a flow rate adjustment unit for adjusting the amount of water supplied to the first pole chambers communicated in parallel.
3. The electrolytic water generating apparatus according to claim 1 or 2,
the electrolytic water generation device further includes an exhaust unit configured to separate a gas from the electrolytic water generated in the first pole chambers connected in parallel and to exhaust the gas.
4. The electrolytic water generating apparatus according to claim 1 or 2,
at least two of the electrolysis chambers are arranged in the vertical direction.
5. An apparatus for producing water for dialysate preparation, comprising:
the electrolyzed water forming apparatus according to any one of claims 1 to 4; and
a filtering unit that filters the electrolyzed water generated in the second pole chambers communicated in series.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016017626A JP6276790B2 (en) | 2016-02-02 | 2016-02-02 | Electrolyzed water generating device, dialysate preparation water manufacturing apparatus using the same, and electrolyzed water generating method |
| JP2016-017626 | 2016-02-02 | ||
| PCT/JP2017/003286 WO2017135207A1 (en) | 2016-02-02 | 2017-01-31 | Electrolyzed water generation device and production device for water for dialysate preparation and method for electrolyzed water generation that use same |
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| Publication Number | Publication Date |
|---|---|
| CN108473344A CN108473344A (en) | 2018-08-31 |
| CN108473344B true CN108473344B (en) | 2022-03-29 |
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| CN201780004694.8A Active CN108473344B (en) | 2016-02-02 | 2017-01-31 | Electrolyzed water production device and device for producing water for dialysate preparation using same |
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| JP (1) | JP6276790B2 (en) |
| CN (1) | CN108473344B (en) |
| WO (1) | WO2017135207A1 (en) |
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| JP2020142209A (en) * | 2019-03-07 | 2020-09-10 | 株式会社日本トリム | Hydrogen addition method and hydrogen addition device |
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- 2017-01-31 CN CN201780004694.8A patent/CN108473344B/en active Active
- 2017-01-31 WO PCT/JP2017/003286 patent/WO2017135207A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6276790B2 (en) | 2018-02-07 |
| JP2017136531A (en) | 2017-08-10 |
| WO2017135207A1 (en) | 2017-08-10 |
| CN108473344A (en) | 2018-08-31 |
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