JP2015174085A - Electrolytic water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrolytic water generator that can increase a dissolved hydrogen concentration.SOLUTION: An electrolytic water generator comprises an anode feeder and a cathode feeder that are arranged opposite to each other in an electrolytic chamber 2, and a diaphragm that partitions the electrolytic chamber 2 into an anode feeder-side anode chamber and a cathode feeder-side cathode chamber. An inner surface of a first case piece 3A is formed with a first projecting part 32 that abuts on the anode feeder, a first groove part 31 in which water flowing into the anode chamber flows, a first diversion channel 41 that introduces the water flowing into the anode chamber to the first groove part 31, and a first water collection channel 43 that collects water flowing through the first groove part 31. An inner surface of a second case piece 3B is formed with a second projecting part 34 that abuts on the cathode feeder, a second groove part 33 in which water flowing into the cathode chamber flows, a second diversion channel 42 that introduces the water flowing into the cathode chamber to the second groove part 33, and a second water collection channel 44 that collects water flowing through the second groove part 33. The second groove part 33 is formed shallower than the second diversion channel 42 and the second water collection channel 44.

Description

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

  2. Description of the Related Art Conventionally, an electrolyzed water generating apparatus that includes an electrolytic cell having an anode chamber and a cathode chamber partitioned by a diaphragm and electrolyzes raw water such as tap water introduced into the electrolyzer is known (for example, Patent Documents). 1).

  Electrolyzed hydrogen water in which hydrogen gas produced in the cathode chamber of the electrolyzed water generator is dissolved is expected to exert an excellent effect on improving gastrointestinal symptoms. In recent years, electrolytic hydrogen water generated by an electrolyzed water generating apparatus has attracted attention as being suitable for removing active oxygen during hemodialysis treatment.

JP 2012-240037 A

  In the electrolyzed water generating apparatus, the diaphragm is formed thin in order to efficiently pass ions between the anode chamber and the cathode chamber, so that the pressure difference generated between the anode chamber and the cathode chamber is excessively large. As a result, the diaphragm may be damaged.

  Further, in the electrolyzed water generating device, it is important to control the concentration of hydrogen molecules (hydrogen gas) dissolved in the electrolyzed hydrogen water (dissolved hydrogen concentration). For example, when electrolytic hydrogen water is used for hemodialysis, a high dissolved hydrogen concentration is desirable.

  The present invention has been devised in view of the actual situation as described above, and has as its main object to provide an electrolyzed water generating apparatus capable of increasing the dissolved hydrogen concentration.

  The present invention includes an electrolytic cell in which an electrolysis chamber into which water to be electrolyzed flows is formed, an anode power feeding body and a cathode power feeding body arranged to face each other in the electrolysis chamber, the anode power feeding body, and the cathode An electrolyzed water generating apparatus, comprising: a diaphragm disposed between a power feeding body and a diaphragm separating the electrolysis chamber into an anode chamber on the anode power feeding side and a cathode chamber on the cathode power feeding side; Is sandwiched between the anode power supply body and the cathode power supply body, and the electrolytic cell is formed by fixing the first case piece on the anode power supply side and the second case piece on the cathode power supply side. Formed on the inner surface of the first case piece facing the electrolysis chamber side, the first convex portions that contact the anode feeder and the first convex portions are alternately provided, A plurality of first groove portions through which the inflowing water flows, the first convex portion, and the first A first diversion channel provided on one end side of the groove portion and guiding the water flowing into the anode chamber to each first groove portion; and provided on the other end side of the first convex portion and the first groove portion. A first water collecting passage for collecting water flowing through the one groove portion is formed, and on the inner surface of the second case piece facing the electrolysis chamber side, a second convex portion that comes into contact with the cathode power feeder, and the second Protruding portions are provided alternately, a plurality of second groove portions through which water flowing into the cathode chamber circulates, provided at one end side of the second protruding portions and the second groove portions, and flows into the cathode chamber A second diversion channel that guides the water to each second groove, and a second water collecting channel that is provided on the other end side of the second convex portion and the second groove and collects the water that has circulated through each second groove. The first groove portion is formed shallower than the first water diversion channel and the first water collecting channel, and the second groove portion includes the second water diversion channel and the second water diversion channel. Characterized in that it is shallower than 2 Vol waterways.

  In the electrolyzed water generating apparatus according to the present invention, the first convex portion of the first case piece causes the anode feeder to protrude toward the cathode feeder, and the second convex portion of the second case piece. The part desirably projects the cathode power feeder toward the anode power feeder.

  In the electrolyzed water generating apparatus according to the present invention, it is preferable that the anode power supply body, the cathode power supply body, and the diaphragm are formed in a waveform.

  In the electrolyzed water generating apparatus according to the present invention, the first convex portion causes the anode feeder to protrude toward the cathode feeder, and the second convex portion projects the cathode feeder toward the anode feeder. By doing so, it is desirable that the anode feeder, the cathode feeder and the diaphragm are corrected to the same corrugated shape.

  The electrolyzed water generating apparatus of the present invention includes an electrolyzer in which an electrolysis chamber into which water to be electrolyzed flows is formed, an anode feeder and a cathode feeder that are disposed to face each other in the electrolysis chamber, and an anode feeder. And a diaphragm, which is disposed between the cathode power supply body and divides the electrolysis chamber into an anode chamber and a cathode chamber. Since the diaphragm is sandwiched between the anode feeder and the cathode feeder, the shape of the diaphragm is held by the anode feeder and the cathode feeder, and the stress applied to the diaphragm is reduced. Therefore, even if a large pressure difference occurs between the anode chamber and the cathode chamber of the electrolytic cell, damage to the diaphragm is suppressed.

  In addition, since the second groove is formed shallower than the second diversion channel and the second water collection channel, the second groove is compared with a case where the second groove is formed with a depth equal to or greater than the second diversion channel. Thus, the cross-sectional area of the flow path of the second groove portion tends to be small. Thereby, the flow velocity of the water flowing through the second groove is increased, hydrogen molecules are easily dissolved in water, and the dissolved hydrogen concentration can be increased.

It is a block diagram which shows schematic structure of one Embodiment of the electrolyzed water generating apparatus of this invention. It is sectional drawing which shows the structure of the electrolytic cell of FIG. It is an assembly perspective view of the electrolytic cell of FIG. It is the sectional view on the AA line of FIG. It is a front view which expands and shows the 1st net-like electric power feeding body and the 2nd net-like electric power feeding body before being accommodated in an electrolysis chamber. It is a perspective view which shows the 1st case piece and 2nd case piece of FIG. It is sectional drawing which shows the main processes of the manufacturing method of the electrolyzed water generating apparatus of FIG. It is the sectional view on the AA line which shows the modification of the electrolytic cell of FIG. It is a perspective view which shows the modification of the 1st case piece of FIG. 6, and a 2nd case piece. It is a perspective view which shows another modification of the 1st case piece of FIG. 6, and a 2nd case piece.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of an electrolyzed water generating apparatus 1 of the present embodiment. The electrolyzed water generating apparatus 1 may be used for generating water for domestic beverages and cooking and for generating dialysate for hemodialysis.

  The electrolyzed water generating apparatus 1 includes an electrolyzer 3 in which an electrolyzer 2 into which water to be electrolyzed flows is formed, and an anode feeder 4 and a cathode feeder 5 disposed opposite to each other in the electrolyzer 2. And a diaphragm 6 disposed between the anode feeder 4 and the cathode feeder 5. The diaphragm 6 divides the electrolysis chamber 2 into an anode chamber 2A on the anode feeder 4 side and a cathode chamber 2B on the cathode feeder 5 side. The diaphragm 6 allows ions generated by electrolysis to pass therethrough, and the anode feeder 4 and the cathode feeder 5 are electrically connected via the diaphragm 6. When a voltage is applied between the anode feeder 4 and the cathode feeder 5, water is electrolyzed in the electrolysis chamber 2 to obtain electrolyzed water.

  The electrolyzed water generating apparatus 1 includes a power supply unit 11, a polarity switching unit 12, an ammeter 13, a flow meter 14, flow control valves 15a and 15b, flow path switching valves 16a and 16b, and a control unit 17. ing.

  The power supply unit 11 is connected to a commercial AC power supply via a plug 11 a and applies a DC voltage to the anode power supply 4 and the cathode power supply 5 in accordance with a control signal input from the control unit 17. The polarity switching unit 12 switches the polarity of the DC voltage applied to the anode power supply 4 and the cathode power supply 5 in accordance with the control signal input from the control unit 17. The polarity switching unit 12 switches the polarity of the DC voltage applied to the anode power supply body 4 and the cathode power supply body 5 so that the polarity of the anode power supply body 4 and the cathode power supply body 5 in FIG. The anode chamber 2A and the cathode chamber 2B are interchanged with each other (hereinafter, the same applies to FIG. 2 and subsequent figures). The polarity switching unit 12 switches the polarity of the power feeding bodies 4 and 5 at a predetermined time, a predetermined flow rate, or every predetermined operation, thereby preventing the scale from continuing to adhere to the cathode power feeding body. The ammeter 13 detects a current flowing through a circuit configured by the power supply unit 11, the polarity switching unit 12, the anode power supply 4, the cathode power supply 5, and the like, and outputs a corresponding signal to the control unit 17.

  The flow meter 14 is provided in the water supply channel 18, detects the amount of water flowing into the electrolyzed water generating device 1, and outputs the detected amount to the control unit 17. Purified water is supplied to the water supply channel 18. A water supply path 18 provided downstream of the flow meter 14 branches into a first water supply path 18a and a second water supply path 18b.

  The flow control valve 15 a is provided in the first water supply path 18 a and controls the amount of water flowing into the electrolysis chamber 2. The flow control valve 15 b is provided in the drainage channel 20 and controls the amount of water flowing out from the electrolysis chamber 2. Since the flow control valves 15a and 15b limit the amount of water flowing into and out of the anode chamber 2A or the cathode chamber 2B, a difference occurs between the amount of water flowing into and out of the anode chamber 2A and the amount of water flowing into and out of the cathode chamber 2B. Thereby, the waste_water | drain discharged | emitted from the drainage channel 20 can be reduced, and effective use of water can be aimed at. The ratio of the amount of water flowing into and out of the anode chamber 2 </ b> A and the amount of water flowing into and out of the cathode chamber 2 </ b> B may be fixed, or may be configured to be appropriately changeable manually or under the control of the control unit 17. By changing the ratio of the amount of water flowing into and out of the anode chamber 2A and the amount of water flowing into and out of the cathode chamber 2B, a pressure difference may occur between the anode chamber 2A and the cathode chamber 2B.

  The flow path switching valve 16a switches the connection between the first water supply path 18a and the second water supply path 18b and the anode chamber 2A and the cathode chamber 2B in accordance with a control signal input from the control unit 17. The flow path switching valve 16 b switches the connection between the anode chamber 2 </ b> A and the cathode chamber 2 </ b> B, the water supply path 19, and the drainage path 20 in accordance with the control signal input from the control unit 17. The flow path switching valve 16a and the flow path switching valve 16b are driven by, for example, a motor (not shown). The water supply path 19 delivers the electrolytic hydrogen water generated in the cathode chamber 2B.

  The control unit 17 controls each unit. For example, the control unit 17 feedback-controls the output of the power supply unit 11 based on a signal input from the ammeter 13.

  Furthermore, the control part 17 counts time, and controls switching operation | movement of the polarity switching part 12 and the flow path switching valves 16a and 16b, whenever predetermined time passes. Control of the switching operation of the polarity switching unit 12 and the flow path switching valves 16a and 16b is managed by the amount of water fed from the water supply channel 19 instead of the form managed by the time or in addition to the form managed by the time. It may be a form to do. In this case, the control unit 17 integrates the amount of water supplied from the water supply channel 19 based on the signal input from the flow meter 14, and each time a predetermined amount of water is supplied, the polarity switching unit 12 and the flow path switching valve. The switching operation of 16a and 16b may be controlled. Further, the switching operation of the polarity switching unit 12 and the flow path switching valves 16a and 16b may be controlled every time a predetermined operation is performed.

  Under the control of the control unit 17, the polarity switching unit 12 and the flow path switching valves 16a and 16b operate synchronously, so that the electrolytic hydrogen water generated in the cathode chamber 2B is always sent out from the water supply channel 19 and discharged. The acidic water produced in the anode chamber 2A is always sent out from the passage 20. In addition, what is necessary is just to reverse the operation | movement of the flow-path switching valve 16b, when sending the acidic water produced | generated in the anode chamber 2A from the water supply path 19. FIG. In this case, the acidic water generated in the anode chamber 2A is sent out from the water supply channel 19, and the electrolytic hydrogen water generated in the cathode chamber 2B is sent out from the drainage channel 20.

  FIG. 2 shows the structure of the electrolytic cell 3. FIG. 3 is an assembled perspective view of the electrolytic cell 3. The electrolytic cell 3 has a first case piece 3A on the anode feeder 4 side and a second case piece 3B on the cathode feeder 5 side. The first case piece 3 </ b> A and the second case piece 3 </ b> B arranged to face each other are fixed, whereby the electrolysis chamber 2 is formed inside thereof.

  A sealing member 3 </ b> C for preventing water leakage from the mating surfaces of the first case piece 3 </ b> A and the second case piece 3 </ b> B is provided outside the outer peripheral edges of the anode power supply body 4 and the cathode power supply body 5. . The outer peripheral part of the diaphragm 6 is clamped by the sealing member 3C.

As shown in FIG. 3, the electrolytic cell 3 accommodates a laminated body 10 in which an anode feeder 4, a diaphragm 6 and a cathode feeder 5 are stacked in an electrolytic chamber 2. In this embodiment, as the diaphragm 6, for example, a solid polymer film 6a made of a fluorine-based resin material having a sulfonic acid group is used. Plating layers 6b made of platinum are formed on both surfaces of the solid polymer film 6a. In the electrolytic cell 3 using the solid polymer membrane 6a as the diaphragm 6, the following reactions occur on the anode side and the cathode side of the diaphragm 6.
Anode side: 6H ₂ O → 4H ₃ O ⁺ + O ₂ + 4e ⁻
Cathode side: 4H ₃ O ⁺ + 4e ⁻ → 2H ₂ + 4H ₂ O
At this time, the oxonium ion 4H ₃ O ⁺ generated on the anode side passes through the solid polymer film 6a and moves to the cathode side, and is combined with electrons 4e ⁻ to generate hydrogen molecules 2H ₂ . Hydrogen molecules H ₂ generated on the cathode side dissolve in the water in the cathode chamber 2B and constitute electrolytic hydrogen water. The electrolytic hydrogen water generated in the cathode chamber 2 </ b> B is sent through the water supply path 19. On the other hand, the acidic water generated in the anode chamber 2 </ b> A is discharged through the drainage channel 20.

  The diaphragm 6 is sandwiched between the anode feeder 4 and the cathode feeder 5 in the electrolysis chamber 2. Therefore, the shape of the diaphragm 6 is held by the anode power supply 4 and the cathode power supply 5. According to the present embodiment having such a structure for holding the diaphragm 6, most of the stress caused by the pressure difference generated between the anode chamber 2 </ b> A and the cathode chamber 2 </ b> B of the electrolytic cell 3 is the anode feeder 4 and The stress applied to the diaphragm 6 by the cathode power supply 5 is reduced. Thereby, even if the electrolyzed water generating apparatus 1 is operated in a state where a large pressure difference is generated between the anode chamber 2A and the cathode chamber 2B, no great stress is generated on the diaphragm 6. Therefore, it becomes possible to improve the utilization efficiency of water. Further, since the diaphragm 6 is sandwiched between the anode power supply 4 and the cathode power supply 5, between the plating layer 6 b of the diaphragm 6 and the anode power supply 4 and between the plating layer 6 b of the diaphragm 6 and the cathode power supply 5. The contact resistance is reduced and the voltage drop is suppressed. Thereby, electrolysis in the electrolysis chamber 2 is promoted, and electrolytic hydrogen water having a high dissolved hydrogen concentration can be generated.

  FIG. 4 shows a cross section taken along line AA of the electrolytic cell 3 shown in FIG. As shown in FIG. 4, the anode power supply 4 is formed into a waveform by being corrected by the first case piece 3 </ b> A and the second case piece 3 </ b> B. Since the corrugated plate-like anode feeder 4 has a large bending rigidity, even if the anode feeder 4 receives a large stress due to a pressure difference in the electrolytic chamber 2 through the diaphragm 6, Deformation is suppressed, and damage to the diaphragm 6 is suppressed.

  The diaphragm 6 is formed in a waveform along the anode feeder 4. That is, the anode feeder 4 and the diaphragm 6 are formed in waveforms having the same amplitude, the same wavelength, and the same phase. Thereby, since the contact resistance between the diaphragm 6 and the anode feeder 4 becomes small, the electrical connection between the diaphragm 6 and the anode feeder 4 becomes good, and the electrolysis in the electrolytic chamber 2 is promoted. .

  The cathode power supply 5 is formed into a waveform by being corrected by the first case piece 3A and the second case piece 3B. That is, the cathode power supply 5 and the diaphragm 6 are formed in waveforms having the same amplitude, the same wavelength, and the same phase. Since such a corrugated cathode power supply 5 has a large bending rigidity, even if the cathode power supply 5 receives a large stress due to a pressure difference in the electrolysis chamber 2 via the diaphragm 6, Deformation is suppressed, and damage to the diaphragm 6 is suppressed. In addition, since the contact resistance between the diaphragm 6 and the cathode power supply 5 is reduced, electrical conduction between the diaphragm 6 and the cathode power supply 5 is improved, and electrolysis in the electrolytic chamber 2 is promoted.

  In the present embodiment, the anode power feeding body 4, the diaphragm 6 and the cathode power feeding body 5 are formed in corresponding waveforms. Therefore, even when the polarity switching unit 12 reverses the polarity of the power feeding body, the diaphragm 6 is held by at least one power feeding body, and therefore, between the anode chamber 2A and the cathode chamber 2B of the electrolytic cell 3. Even if a large pressure difference occurs, deformation of the diaphragm 6 is suppressed, and damage to the diaphragm 6 is suppressed.

  The anode power supply 4 and the cathode power supply 5 are each configured to allow water to go back and forth in the plate thickness direction. In this embodiment, as well shown in FIG. 3, each of the anode power supply 4 and the cathode power supply 5 includes a first mesh power supply 7 and a second mesh power supply 8. Such a net-like anode feeder 4 and cathode feeder 5 can distribute water to the surface of the diaphragm 6 while sandwiching the diaphragm 6, and promote electrolysis in the electrolytic chamber 2.

  The first mesh-like power feeder 7 and the second mesh-like power feeder 8 are accommodated in the electrolysis chamber 2 in a state of being overlapped with each other. A laminated body 10 is configured by the diaphragm 6, and the pair of second net-like power feeders 8 and the pair of first net-like power feeders 7 provided with the diaphragm 6 interposed therebetween. The first net-like power feeder 7 is provided with a terminal 7 a that protrudes outside the electrolytic cell 3. The second reticulated power supply 8 is disposed on the diaphragm 6 side. A DC voltage is applied to the anode power supply 4 and the cathode power supply 5 via the terminal 7a.

  FIG. 5 shows an enlarged view of the first mesh power feeder 7 and the second mesh power feeder 8 before being accommodated in the electrolysis chamber 2. The 1st net-like electric power feeder 7 and the 2nd net-like electric power feeder 8 of this embodiment are comprised by the expanded metal. The first mesh-like power feeder 7 and the second mesh-like power feeder 8 may be constituted by a woven wire mesh or the like.

  The first mesh-like power feeder 7 and the second mesh-like power feeder 8 are made of, for example, titanium, and a plating layer (not shown) made of platinum is formed on the surface thereof. The plating layer prevents oxidation of titanium.

  The bending rigidity of the second mesh power supply 8 is set to be smaller than the bending rigidity of the first mesh power supply 7. More specifically, the strand width S2 of the second mesh power feeder 8 is set to be smaller than the strand width S1 of the first mesh power feeder 7. Such a first mesh-like power supply body 7 can be deformed flexibly together with the diaphragm 6 and suppresses damage to the diaphragm 6.

  Furthermore, the pitch P <b> 2 of the second mesh power feeder 8 is set smaller than the pitch P <b> 1 of the first mesh power feeder 7. Such a second reticulated power supply 8 reduces the contact resistance with the diaphragm 6. Thereby, the electrical connection between the diaphragm 6 and the 2nd mesh | network electric power feeder 8 becomes favorable, and the electrolysis in the electrolysis chamber 2 is accelerated | stimulated.

  On the other hand, as shown in FIG. 4, the thickness T1 of the first mesh power supply 7 provided outside the anode power supply 4 and the cathode power supply 5 is larger than the thickness T2 of the second mesh power supply 8. It is set large. Since such a first mesh-like power feeder 7 has a large bending rigidity, it is possible to bear a larger stress when a bending stress is applied to the laminate 10, and to suppress the stress generated in the diaphragm 6. . Thereby, damage to the diaphragm 6 can be further suppressed.

  In the present embodiment, since the first mesh power supply body 7 having high bending rigidity is disposed outside the laminated body 10, the bending rigidity of the entire laminated body 10 is increased, and the stress generated in the diaphragm 6 is further suppressed. Is done. Furthermore, the 2nd mesh | network electric power feeder 8 arrange | positioned between the diaphragm 6 and the 1st mesh-like electric power feeder 7 functions as both buffer materials, and suppresses the damage of the diaphragm 6 further.

  FIG. 6 shows the first case piece 3A and the second case piece 3B. As shown in FIGS. 4 and 6, the inner surface of the first case piece 3 </ b> A facing the electrolysis chamber 2 side has a plurality of first grooves 31 through which water flowing into the electrolysis chamber 2 circulates, and the anode feeder 4 and the contact. The several 1st convex-shaped part 32 which touches is formed alternately. The 1st groove part 31 and the 1st convex part 32 are continuously extended along the longitudinal direction of 3 A of vertically long 1st case pieces. The first groove portion 31 constitutes the anode chamber 2A.

  On the other hand, on the inner surface of the second case piece 3B facing the electrolysis chamber 2 side, there are a plurality of second groove portions 33 through which water flowing into the electrolysis chamber 2 flows, and a plurality of second convex portions that abut against the cathode power supply 5. 34 are alternately formed. The 2nd groove part 33 and the 2nd convex-shaped part 34 have extended continuously along the longitudinal direction of the vertically long 2nd case piece 3B. The second groove portion 33 constitutes the cathode chamber 2B.

  The first convex portion 32 is provided at a position facing the second groove portion 33 with the anode power supply body 4, the diaphragm 6 and the cathode power supply body 5 interposed therebetween. On the other hand, the second convex portion 34 is provided at a position facing the first groove portion 31 with the cathode power supply body 5, the diaphragm 6 and the anode power supply body 4 interposed therebetween. The first convex portions 32 and the second convex portions 34 are formed to be alternately positioned when the first case pieces 3A and the second case pieces 3B are fixed.

  As shown in FIG. 4, the tip of the first convex portion 32 of the first case piece 3 </ b> A is in contact with the first mesh-like power feeder 7 of the anode power feeder 4, and the anode power feeder 4 is connected to the cathode power feeder 5. Project to the side. On the other hand, the second convex portion 34 of the second case piece 3B is in contact with the first mesh-like power feeder 7 of the cathode power feeder 5 and causes the cathode power feeder 5 to protrude toward the anode power feeder 4 side. Thereby, the laminated body 10 which consists of the cathode electric power feeder 5, the diaphragm 6, and the anode electric power feeder 4 is corrected by the waveform shape. That is, the anode power supply body 4, the cathode power supply body 5, and the diaphragm 6 are corrected to the same waveform.

  Since the tip end portion of the first convex portion 32 is in contact with the first mesh-like power feeder 7 of the anode power feeder 4, the anode power feeder 4 passes through the diaphragm 6 due to the pressure difference between the anode chamber 2A and the cathode chamber 2B. When the force is applied to the first case piece 3 </ b> A side, deformation of the anode power feeder 4 is suppressed while supporting the anode power feeder 4. Similarly, since the tip of the second convex portion 34 is in contact with the first mesh-like power feeder 7 of the cathode power feeder 5, the cathode power feeder 5 is separated by the pressure difference between the anode chamber 2A and the cathode chamber 2B. When the force is applied to the second case piece 3 </ b> B side through 6, the cathode power supply 5 is supported and the deformation of the cathode power supply 5 is suppressed.

  As shown in FIGS. 2 and 3, the electrolytic cell 3 is provided with L-shaped joints 35, 36, 37, and 38. The joints 35 and 36 are attached to lower portions of the first case piece 3A and the second case piece 3B, and are connected to the flow path switching valve 16a. The joints 37 and 38 are attached to the upper portions of the first case piece 3A and the second case piece 3B, and are connected to the flow path switching valve 16b.

  As shown in FIGS. 3 and 6, a first water diversion channel 41 is formed at the lower part of the inner surface of the first case piece 3 </ b> A. The first diversion channel 41 extends along the short direction of the first case piece 3 </ b> A and communicates with the first groove portion 31. Similarly, the 2nd water diversion channel 42 is formed in the lower part of the inner surface of the 2nd case piece 3B. The second diversion channel 42 extends along the short direction of the second case piece 3 </ b> B and communicates with the second groove portion 33. The water flowing in from the joints 35 and 36 flows into the first groove 31 or the second groove 33 via the first diversion channel 41 or the second diversion channel 42, respectively, and along the first groove 31 or the second groove 33. Flows upward.

  On the other hand, a first water collecting channel 43 is formed at the upper part of the inner surface of the first case piece 3A. The first water collecting channel 43 extends along the short direction of the first case piece 3 </ b> A and communicates with the first groove portion 31. Similarly, the 2nd water collection channel 44 is formed in the upper part of the inner surface of the 2nd case piece 3B. The second water collecting channel 44 extends along the short direction of the second case piece 3 </ b> B and communicates with the second groove portion 33. The water moved upward along the first groove portion 31 or the second groove portion 33 is collected by the first water collecting passage 43 or the second water collecting passage 44 and flows out from the joint 37 or 38, respectively.

  Hydrogen molecules generated in the cathode chamber 2B move to the upper side of the cathode chamber 2B as minute bubbles. In the present embodiment, the water that flows in from the joints 35 and 36 provided at the lower part of the electrolysis chamber 2 flows upward in the second groove portion 33. Therefore, since the movement direction of hydrogen molecules and the direction in which water flows match, hydrogen molecules are easily dissolved in water, and the dissolved hydrogen concentration is increased. Furthermore, since the second groove portion 33 extends along the longitudinal direction of the vertically long second case piece 3B, that is, perpendicularly to the lateral direction, the cross-sectional area of the flow path is reduced. Thereby, since the flow velocity of the water which flows through the 2nd groove part 33 becomes high, a hydrogen molecule becomes easy to melt | dissolve in water and dissolved hydrogen concentration is raised.

  A plurality of convex portions 45 are provided in the first water diversion channel 41 and the first water collecting channel 43 of the first case piece 3A. The tip of the convex portion 45 is in contact with the first net-like power feeder 7 of the anode power feeder 4. Similarly, a plurality of convex portions 46 are provided in the second water diversion channel 42 and the second water collecting channel 44 of the second case piece 3B. The tip of the convex portion 46 is in contact with the first net-like power feeder 7 of the cathode power feeder 5. The tips of the protrusions 45 and 46 are brought into contact with the anode power supply body 4 and the cathode power supply body 5, respectively, so that the anode power supply body 4 and the cathode power supply body 5 are sandwiched between the upper part and the lower part thereof, and the laminate 10 is held. Is done.

  FIG. 7 shows the main steps of the method for manufacturing the electrolyzed water generator 1. In the feeder arrangement step shown in FIG. 7A, the laminate 10 of the anode feeder 4, the diaphragm 6 and the cathode feeder 5 is arranged between the first case piece 3A and the second case piece 3B. The That is, the laminated body 10 of the first mesh power feeder 7, the second mesh power feeder 8, the diaphragm 6, the second mesh power feeder 8, and the first mesh power feeder 7 includes the first case piece 3A and the second case piece 3B. Between.

  In the laminated body pressing step shown in FIGS. 7B to 7C, the first case piece 3A and the second case piece 3B are fixed. That is, as shown by an arrow A in FIG. 7B, the first case piece 3A and the second case piece 3B are brought close to each other, and the first convex portion 32 of the first case piece 3A is It abuts on the first mesh power supply 7. At this time, the second convex portion 34 of the second case piece 3 </ b> B also contacts the first mesh-like power feeder 7 of the cathode power feeder 5.

  Further, as indicated by an arrow B in FIG. 7C, the first case piece 3A and the second case piece 3B are brought close to each other and joined together. At this time, the first convex portion 32 of the first case piece 3A and the second convex portion 34 of the second case piece 3B sandwich and press the laminate 10. In connection with this, the 1st convex-shaped part 32 of 3 A of 1st case pieces makes the laminated body 10 protrude in the 2nd groove part 33 side of the 2nd case piece 3B. Similarly, the 2nd convex part 34 of the 2nd case piece 3B makes the laminated body 10 protrude in the 1st groove part 31 side of 3 A of 1st case pieces. Thereby, the laminated body 10 is deform | transformed into a waveform, and the electrolyzed water generating apparatus 1 which has the corrugated anode feeder 4, the diaphragm 6, and the cathode feeder 5 can be manufactured cheaply and easily. The first case piece 3A and the second case piece 3B are joined and fixed by, for example, a bolt (not shown) or the like.

(Modification 1)
FIG. 8 shows a modification of the electrolytic cell 3. In the electrolytic cell 3, the first convex portion 32 of the first case piece 3 </ b> A faces the second convex portion 34 of the second case piece 3 </ b> B with the cathode power supply body 5, the diaphragm 6 and the anode power supply body 4 interposed therebetween. This is different from the electrolytic cell 3 shown in FIG. Accordingly, the first groove portion 31 of the first case piece 3A is disposed so as to face the second groove portion 33 of the second case piece 3B with the cathode power supply body 5, the diaphragm 6 and the anode power supply body 4 interposed therebetween. .

  In this electrolytic cell 3, the shapes of the anode power supply body 4, the diaphragm 6 and the cathode power supply body 5 are maintained flat. The laminated body 10 of the anode power supply body 4, the diaphragm 6 and the cathode power supply body 5 is sandwiched between the first convex portion 32 and the second convex portion 34. That is, the first mesh-like power feeder 7 of the anode power feeder 4 is supported by the first convex portion 32 of the first case piece 3A. Similarly, the first net-like power feeder 7 of the cathode power feeder 5 is supported by the second convex portion 34 of the second case piece 3B. Therefore, most of the stress caused by the pressure difference generated between the anode chamber 2A and the cathode chamber 2B of the electrolytic cell 3 is the anode feeder 4, the first convex portion 32 or the cathode feeder 5, the second convex shape. The stress applied to the diaphragm 6 by the portion 34 is reduced. Thereby, even if the electrolyzed water generating apparatus 1 is operated in a state where a large pressure difference is generated between the anode chamber 2A and the cathode chamber 2B, no large stress is generated in the diaphragm 6, so that damage to the diaphragm 6 is suppressed. The

(Modification 2)
FIG. 9 shows a first case piece 9A and a second case piece 9B, which are modifications of the first case piece 3A and the second case piece 3B shown in FIG. The first case piece 9A has a plurality of first convex portions 92 that extend intermittently along the longitudinal direction of the first case piece 9A instead of the first convex portion 32. It is different from the piece 3A. The first convex portion 92 is formed so as to protrude from the inner bottom surface 91 facing the electrolysis chamber 2 side of the first case piece 9A toward the electrolysis chamber 2 side. The water flowing into the electrolysis chamber 2 flows between the first convex portions 92 adjacent to each other in the short direction of the first case piece 9A.

  Similarly, the second case piece 9B has a plurality of second convex portions 94 extending intermittently along the longitudinal direction of the second case piece 9B instead of the second convex portion 34. This is different from the second case piece 3B. The second convex portion 94 is formed so as to protrude from the inner bottom surface 93 of the second case piece 9B facing the electrolysis chamber 2 side to the electrolysis chamber 2 side. The water that has flowed into the electrolysis chamber 2 flows between the second convex portions 94 adjacent to each other in the short direction of the second case piece 9B.

  The first convex portions 92 and the second convex portions 94 are formed so as to be alternately positioned when the first case pieces 9A and the second case pieces 9B are fixed. At this time, the 1st convex part 92 and the 2nd convex part 94 contact | abut with the anode power supply body 4 and the cathode power supply body 5, and correct the anode power supply body 4 and the cathode power supply body 5 to a waveform.

(Modification 3)
FIG. 10 shows a first case piece 9C and a second case piece 9D, which are another modification of the first case piece 3A and the second case piece 3B shown in FIG. The first case piece 9C is different from the first case piece 3A in that the first case piece 9C includes a plurality of first convex portions 97 provided discretely instead of the first convex portion 32. The first convex portion 97 is formed of a dot-like cylinder in plan view. The 1st convex part 97 may be formed in the ellipse by planar view. The first convex portion 97 is formed to protrude from the inner bottom surface 96 facing the electrolysis chamber 2 side of the first case piece 9A to the electrolysis chamber 2 side. The water flowing into the electrolysis chamber 2 flows between the first convex portions 97 adjacent to each other in the short direction of the first case piece 9C.

  Similarly, the second case piece 9 </ b> D is different from the second case piece 3 </ b> B in that it has a plurality of second convex portions 99 provided discretely instead of the second convex portions 34. ing. The second convex portion 99 is formed of a dot-like cylinder in plan view. The 2nd convex part 99 may be formed in the ellipse by planar view. The second convex portion 99 is formed to protrude from the inner bottom surface 98 of the second case piece 9D facing the electrolysis chamber 2 to the electrolysis chamber 2 side. The water that has flowed into the electrolysis chamber 2 flows between the second convex portions 99 adjacent to each other in the short direction of the second case piece 9D.

  The first convex portions 97 and the second convex portions 99 are formed so as to be alternately positioned when the first case pieces 9C and the second case pieces 9D are fixed. At this time, the 1st convex part 97 and the 2nd convex part 99 contact | abut with the anode power supply body 4 and the cathode power supply body 5, and correct the anode power supply body 4 and the cathode power supply body 5 to a waveform.

  According to the electrolyzed water generating device 1 of the present embodiment having the above-described configuration, the diaphragm 6 is sandwiched between the anode feeder 4 and the cathode feeder 5, so that the shape of the diaphragm 6 is the anode feeder 4 and The stress applied to the diaphragm 6 by the cathode power supply 5 is reduced. Therefore, even if a large pressure difference occurs between the anode chamber 2A and the cathode chamber 2B of the electrolytic cell 3, damage to the diaphragm 6 is suppressed.

  As mentioned above, although the electrolyzed water generating apparatus 1 of this invention was demonstrated in detail, this invention is changed and implemented in various aspects, without being limited to said specific embodiment. That is, the electrolyzed water generating apparatus 1 includes at least an electrolysis tank 3 that partitions an electrolysis chamber 2 into which water to be electrolyzed flows, and an anode feeder 4 and a cathode feed that are disposed to face each other in the electrolysis chamber 2. And the electrolytic chamber 2 is divided into an anode chamber 2A on the anode feeder 4 side and a cathode chamber 2B on the cathode feeder 5 side. The diaphragm 6 may be provided, and the diaphragm 6 may be sandwiched between the anode feeder 4 and the cathode feeder 5.

  Moreover, the dissolved hydrogen concentration of the electrolytic hydrogen water supplied to a dialysis apparatus can be raised by providing the some electrolytic vessel 3 in series.

  The anode power feeder 4 and the cathode power feeder 5 only need to be made of a conductor capable of moving water in the thickness direction. For example, the anode feeder 4 and the cathode feeder 5 may be made of punching metal. In addition, each of the anode power supply 4 and the cathode power supply 5 has a configuration including the first mesh power supply 7 and the second mesh power supply 8, but the anode power supply 4 and the cathode power supply 5 are each in a single mesh shape. You may be comprised from the electric power feeding body.

DESCRIPTION OF SYMBOLS 1 Electrolyzed water production | generation apparatus 2 Electrolytic chamber 2A Anode chamber 2B Cathode chamber 3 Electrolytic tank 3A 1st case piece 3B 2nd case piece 4 Anode feeder 5 Cathode feeder 6 Separator 6a Solid polymer membrane 7 1st net-like feeder 8 8th 2 Reticulated Power Supply 31 First Groove 32 First Protrusion 33 Second Groove 34 Second Convex

Claims (4)

An electrolytic cell in which an electrolytic chamber into which water to be electrolyzed flows is formed;
An anode feeder and a cathode feeder disposed opposite to each other in the electrolytic chamber;
Electrolyzed water generation comprising a diaphragm disposed between the anode feeder and the cathode feeder and dividing the electrolysis chamber into an anode chamber on the anode feeder side and a cathode chamber on the cathode feeder side A device,
The diaphragm is sandwiched between the anode feeder and the cathode feeder,
The electrolytic cell forms the electrolytic chamber by fixing the first case piece on the anode feeder side and the second case piece on the cathode feeder side,
On the inner surface of the first case piece facing the electrolytic chamber side,
A first convex portion in contact with the anode feeder,
A plurality of first groove portions provided alternately with the first convex portions, and through which the water flowing into the anode chamber flows;
A first diversion channel that is provided on one end side of the first convex portion and the first groove portion and guides the water flowing into the anode chamber to each first groove portion;
A first catchment channel that is provided on the other end side of the first convex part and the first groove part and collects water that has circulated through the first groove part;
On the inner surface of the second case piece facing the electrolytic chamber side,
A second convex portion in contact with the cathode power supply;
A plurality of second grooves that are alternately provided with the second convex portions and through which the water flowing into the cathode chamber flows;
A second diversion channel that is provided on one end side of the second convex portion and the second groove portion and guides the water flowing into the cathode chamber to each second groove portion;
Provided on the other end side of the second convex part and the second groove part, and a second water collecting channel for collecting water flowing through each second groove part is formed;
The first groove is formed shallower than the first diversion channel and the first water collection channel, and the second groove is formed shallower than the second diversion channel and the second water collection channel. Electrolyzed water generator. The first convex portion of the first case piece causes the anode power feeder to protrude toward the cathode power feeder,
2. The electrolyzed water generating device according to claim 1, wherein the second convex portion of the second case piece causes the cathode power feeder to protrude toward the anode power feeder.   The electrolyzed water generating apparatus according to claim 1 or 2, wherein the anode power supply body, the cathode power supply body, and the diaphragm are formed in a waveform. The first convex portion projects the anode power feeder toward the cathode power feeder, and the second convex portion projects the cathode power feeder toward the anode power feeder, whereby the anode power feeder and the cathode The electrolyzed water generating apparatus according to claim 3, wherein the power feeder and the diaphragm are corrected to have the same waveform.

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