WO2016143540A1

WO2016143540A1 - Electrolytic water generating apparatus

Info

Publication number: WO2016143540A1
Application number: PCT/JP2016/055622
Authority: WO
Inventors: 孝士橘
Original assignee: 株式会社日本トリム
Priority date: 2015-03-06
Filing date: 2016-02-25
Publication date: 2016-09-15
Also published as: JP5756579B1; JP2016163865A; TWI639562B; TW201632469A

Abstract

In an electrolytic cell 4 of this electrolytic water generating apparatus, an electrolytic chamber is formed by fixing a first case piece 50 and a second case piece 60. A first protrusion section 53 contacting a positive electrode feeder 41 is disposed on the inner surface of the first case piece 50, and a second protrusion section 63 contacting a negative electrode feeder 42 is disposed on the inner surface of the second case piece 60. The first protrusion section 53 includes a first protrusion 56 contacting an end edge section 41e of the positive electrode feeder 41, and the second protrusion section 63 includes a second protrusion 66 contacting an end edge section 42e of the negative electrode feeder 42. Thus, the contact pressure between each of the end edge sections 41e, 42e of the feeders 41, 42 and a separation membrane 43 is increased, and electrolytic current flowing through the end edge sections 41e, 42e is increased, thereby accelerating electrolysis.

Description

Electrolyzed water generator

The present invention relates to an electrolyzed water generating apparatus for electrolyzing water to generate electrolyzed hydrogen water.

2. Description of the Related Art Conventionally, an electrolyzed water generating apparatus that includes an electrolyzer having an anode chamber and a cathode chamber partitioned by a diaphragm and electrolyzes raw water such as tap water introduced into the electrolyzer to generate electrolyzed hydrogen water is known. (For example, refer to Patent Document 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 been attracting attention as being suitable for removal of active oxygen.

Japanese Patent No. 569724

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. For example, the pressure difference generated between the anode chamber and the cathode chamber is excessive. If it becomes too large, the diaphragm may be damaged. In view of this, the electrolyzed water generating apparatus of Patent Document 1 employs a structure in which a laminated body composed of an anode feeder, a diaphragm, and a cathode feeder is sandwiched and supported by convex portions of case pieces constituting the electrolytic cell.

In the electrolyzed water generating device, at the location where the laminate is pressed by the convex portion, a sufficient contact pressure is obtained between each power feeder and the diaphragm, so that the contact resistance between the two decreases, The electrolytic current supplied to the power feeder can be sufficiently secured.

However, as shown in FIG. 4 in the same document, the edge portions of the anode feeder and the cathode feeder are not supported by the case pieces and are free ends. Therefore, it is difficult to ensure a sufficient contact pressure between the edge portions of the anode power supply body and the cathode power supply body and the diaphragm, and the contact resistance between them increases. As a result, the electrolysis current supplied to the edge portions of the anode power supply body and the cathode power supply body may decrease, and electrolysis may be hindered.

The present invention has been devised in view of the above-described circumstances, and is capable of easily increasing the dissolved hydrogen concentration by promoting electrolysis at the edge portions of the anode feeder and the cathode feeder. The main purpose is to provide a water generator.

The present invention includes an electrolytic cell in which an electrolysis chamber to which water to be electrolyzed is formed, an anode power feeding body and a cathode power feeding body arranged to face each other in the electrolysis chamber, the anode power feeding body, and the An electrolyzed water generating device provided with a diaphragm disposed between a cathode power supply and dividing the electrolysis chamber into an anode chamber on the anode power supply side and a cathode chamber on the cathode power supply side, A diaphragm 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. A first convex portion that is in contact with the anode feeder is provided on an inner surface of the first case piece facing the electrolysis chamber side, and an inner surface of the second case piece facing the electrolysis chamber side Is provided with a second convex portion in contact with the cathode power supply body, Convex portion includes an edge portion abutting the first protrusion of the anode current collector, the second convex portion, characterized in that it comprises an edge portion abutting the second projection of the cathode current collector.

In the electrolyzed water generating apparatus according to the present invention, a plurality of the first protrusions are provided along an edge portion of the anode power supply body, and the second protrusions are provided along an edge edge portion of the cathode power supply body. It is desirable to provide a plurality.

In the electrolyzed water generating apparatus according to the present invention, it is preferable that the second protrusion is disposed between the adjacent first protrusions.

In the electrolyzed water generating device according to the present invention, the first protrusion and the second protrusion include a vertically long protrusion along a flow of water in the electrolysis chamber, and the vertically long protrusion is the anode feeder. Alternatively, it is desirable that the cathode power supply body be in contact with a lateral end edge in a lateral direction perpendicular to the longitudinal direction.

In the electrolyzed water generating apparatus according to the present invention, the first protrusion and the second protrusion include a laterally long protrusion in a lateral direction perpendicular to the longitudinal direction, and the laterally elongated protrusion is the anode power supply or the cathode power supply. It is desirable to contact the longitudinal edge of the body in the longitudinal direction.

In the electrolyzed water generating apparatus according to the present invention, the top portion of the first convex portion includes a curved surface having a center on the first case piece side, and the top portion of the second convex portion is the second case piece. It is desirable to include a curved surface having a center on the side.

In the electrolyzed water generating apparatus according to the present invention, the inner surface of the first case piece facing the electrolysis chamber faces the second convex portion with the diaphragm, the anode power supply body, and the cathode power supply body interposed therebetween. A first small protrusion having a height smaller than that of the first convex portion is disposed at a position, and the diaphragm, the anode power supply, and the cathode power supply are formed on the inner surface of the second case piece facing the electrolysis chamber. It is desirable that a plurality of second small protrusions having a height smaller than that of the second convex portion be disposed at a position facing the first convex portion across the body.

In the electrolyzed water generating apparatus according to the present invention, it is preferable that the first small protrusion does not contact with the anode power supply, and the second small protrusion does not contact with the cathode power supply.

In the electrolyzed water generating device according to the first aspect of the present invention, a plurality of first convex portions that contact the anode power feeder are disposed on the inner surface of the first case piece facing the electrolysis chamber side, And a first protrusion abutting against the edge of the anode power feeder. Thereby, the edge part of an anode electric power feeding body is pressed to the diaphragm side by the 1st convex part, and the contact pressure of the edge part of an anode electric power feeding body and a diaphragm is raised. On the other hand, on the inner surface of the second case piece facing the electrolysis chamber side, a plurality of second convex portions that contact the cathode power supply body are disposed, and the second convex portions are in contact with the edge portions of the cathode power supply body. Includes two protrusions. Thereby, the edge part of a cathode electric power feeder is pressed to the diaphragm side by a 2nd convex part, and the contact pressure of the edge part of a cathode electric power feeder and a diaphragm is raised. Therefore, the electrolytic current flowing through the edge portions of the anode power supply body and the cathode power supply body is increased, and electrolysis at each edge portion is promoted. Therefore, it is possible to easily increase the dissolved hydrogen concentration of the electrolytic hydrogen water generated in the cathode chamber.

It is a block diagram which shows schematic structure of one Embodiment of the electrolyzed water generating apparatus of this invention. It is an assembly perspective view of the electrolytic cell of FIG. It is a perspective view which shows the 1st case piece and 2nd case piece of FIG. It is a front view which shows the 1st case piece and 2nd case piece of FIG. FIG. 5 is an assembled cross-sectional view of the electrolytic cell including the AA cross section and the BB cross section of FIG. 4. It is sectional drawing of the electrolytic cell in the same cross section as FIG. It is a perspective view which shows the modification of the 1st case piece of FIG. It is a perspective view which shows the modification of the 2nd case piece of FIG. It is a perspective view which shows another modification of the 1st case piece of FIG. 3, and a 2nd case piece. It is a perspective view which shows another modification of the 1st case piece and 2nd case piece of FIG.

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 electrolysis tank 4 in which an electrolysis chamber 40 to which water to be electrolyzed is supplied, and an anode power supply 41 and a cathode power supply 42 that are disposed to face each other in the electrolysis chamber 40. And a diaphragm 43 disposed between the anode power supply 41 and the cathode power supply 42. Another electrolytic cell may be provided upstream or downstream of the electrolytic cell 4. Further, another electrolytic cell may be provided in parallel with the electrolytic cell 4. A configuration equivalent to that of the electrolytic cell 4 can also be applied to the electrolytic cell provided separately.

The diaphragm 43 divides the electrolysis chamber 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 40 A and the cathode chamber 40 B of the electrolysis chamber 40, and a DC voltage is applied to the anode power supply 41 and the cathode power supply 42, whereby water is electrolyzed in the electrolysis chamber 40.

The diaphragm 43 allows ions generated by electrolysis to pass therethrough, and the anode feeder 41 and the cathode feeder 42 are electrically connected through the diaphragm 43. For the diaphragm 43, for example, a solid polymer material made of a fluorine-based resin material having a sulfonic acid group is used.

In the electrolytic cell 4 having the diaphragm 43 using a solid polymer material, neutral electrolytic hydrogen water and electrolytic oxygen water are generated. By electrolyzing water in the electrolytic chamber 40, electrolytic hydrogen water in which hydrogen gas is dissolved is obtained in the cathode chamber 40B, and electrolytic oxygen water in which oxygen gas is dissolved is obtained in the anode chamber 40A.

The electrolyzed water generating apparatus 1 further includes a control means 6 for controlling the electrolyzer 4, a water inlet 7 provided on the upstream side of the electrolyzer 4, and a water outlet 8 provided on the downstream side of the electrolyzer 4. ing.

The control means 6 includes, for example, a CPU (Central Processing Unit) that executes various arithmetic processes and information processing, a program that controls the operation of the CPU, and a memory that stores various information.

Current detection means 44 is provided on the current supply line between the anode power supply 41 and the control means 6. The current detection unit 44 may be provided in a current supply line between the cathode power supply 42 and the control unit 6. The current detection unit 44 detects the electrolytic current supplied to the

power feeding bodies

41 and 42 and outputs a signal corresponding to the value to the control unit 6.

The control means 6 performs feedback control of the voltage applied between the anode power supply 41 and the cathode power supply 42 based on the signal input from the current detection means 44. For example, when the electrolysis current is excessive, the control unit 6 decreases the voltage, and when the electrolysis current is excessive, the control unit 6 increases the voltage. Thereby, the electrolysis current supplied to the

power feeding bodies

41 and 42 can be appropriately controlled.

The water inlet 7 has a water supply pipe 71, a flow rate sensor 72, a branching portion 73, a flow rate adjustment valve 74, and the like. The water supply pipe 71 guides the water supplied to the electrolyzed water generating device 1 to the electrolysis chamber 40. The flow rate sensor 72 is provided in the water supply pipe 71. The flow rate sensor 72 periodically detects the flow rate per unit time of water supplied to the electrolysis chamber 40 (hereinafter sometimes simply referred to as “flow rate”) F, and outputs a signal corresponding to the value F to the control means 6. Output to.

The branch part 73 branches the water supply pipe 71 into two directions of the

water supply pipes

71a and 71b. The flow rate adjusting valve 74 connects the

water supply pipes

71a and 71b to the anode chamber 40A or the cathode chamber 40B. The flow rate of water supplied to the anode chamber 40A and the cathode chamber 40B is adjusted by the flow rate adjusting valve 74 under the control of the control means 6. The flow rate adjusting valve 74 adjusts the flow rate of water supplied to the anode chamber 40A and the cathode chamber 40B in order to increase the use efficiency of water. This may cause a pressure difference between the anode chamber 40A and the cathode chamber 40B.

In the present embodiment, since the flow rate sensor 72 is provided on the upstream side of the branching portion 73, the sum of the flow rate of water supplied to the anode chamber 40A and the flow rate of water supplied to the cathode chamber 40B, that is, A flow rate F of water supplied to the electrolysis chamber 40 is detected.

The water outlet 8 includes a flow path switching valve 81, a water discharge pipe 82, a drain pipe 83, and the like. The flow path switching valve 81 selectively connects the anode chamber 40A and the cathode chamber 40B to the water discharge pipe 82 or the drain pipe 83. When the electrolyzed water generating apparatus 1 is used for generating a dialysate for hemodialysis, the electrolyzed hydrogen water generated in the cathode chamber 40B dilutes the reverse osmosis membrane module for filtration and the dialysate stock solution through the water discharge pipe 82. Supplied to a dilution device or the like.

The control means 6 controls the polarity of the DC voltage applied to the anode power supply 41 and the cathode power supply 42. For example, the control means 6 integrates the flow rate F of water supplied to the electrolysis chamber 40 based on the signal input from the flow rate sensor 72, and when it reaches a predetermined flow rate, the control unit 6 applies to the anode power supply 41 and the cathode power supply 42. Switch the polarity of the DC voltage to be applied. Along with this, the anode chamber 40A and the cathode chamber 40B are interchanged. In switching the polarity of the DC voltage, the control means 6 operates the flow rate adjustment valve 74 and the flow path switching valve 81 in synchronization. Thereby, the cathode chamber 40B and the water discharge pipe 82 are always connected, and the electrolytic hydrogen water generated in the cathode chamber 40B is discharged from the water discharge pipe 82.

FIG. 2 is an assembled perspective view of the electrolytic cell 4. The electrolytic cell 4 includes a first case piece 50 on the anode power supply 41 side and a second case piece 60 on the cathode power supply 42 side. The first case piece 50 and the second case piece 60 arranged to face each other are fixed to each other, so that the electrolysis chamber 40 (see FIG. 1) is formed therein.

The electrolytic cell 4 accommodates a laminated body 45 in which an anode power supply 41, a diaphragm 43 and a cathode power supply 42 are stacked in an electrolysis chamber 40. The anode power supply 41, the diaphragm 43, and the cathode power supply 42 are each formed in a rectangular shape.

The anode power supply body 41 and the cathode power supply body 42 are configured such that water can travel in the thickness direction. For the anode feeder 41 and the cathode feeder 42, for example, a net-like metal such as an expanded metal can be applied. Such a net-like anode power supply 41 and cathode power supply 42 can distribute water to the surface of the diaphragm 43 while sandwiching the diaphragm 43, and promote electrolysis in the electrolytic chamber 40. In the present embodiment, as the anode power supply body 41 and the cathode power supply body 42, one in which a platinum plating layer is formed on the surface of a titanium expanded metal is applied. The platinum plating layer prevents the oxidation of titanium.

The anode power supply body 41 is provided with a terminal 41 a that penetrates the first case piece 50 and protrudes outside the electrolytic cell 4. Similarly, the cathode power supply 42 is also provided with a terminal 42 a that penetrates the second case piece 60 and protrudes outside the electrolytic cell 4. A DC voltage is applied to the anode power supply 41 and the cathode power supply 42 via the

terminals

41a and 42a.

In the present embodiment, for the diaphragm 43, for example, a solid polymer material made of a fluorine-based resin material having a sulfonic acid group is used. In the electrolytic cell 4 having the diaphragm 43 using a solid polymer material, neutral electrolyzed water is generated. On both surfaces of the diaphragm 43, plating layers 43a made of platinum are formed. The plating layer 43a, the anode power supply 41, and the cathode power supply 42 are in contact with each other and are electrically connected.

The diaphragm 43 is sandwiched between the anode power supply 41 and the cathode power supply 42 in the electrolysis chamber 40. Therefore, the shape of the diaphragm 43 is held by the anode power supply 41 and the cathode power supply 42. According to such a structure for holding the diaphragm 43, most of the stress caused by the pressure difference generated between the anode chamber 40A and the cathode chamber 40B is borne by the anode feeder 41 and the cathode feeder 42. The stress on 43 decreases. 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 40A and the cathode chamber 40B, no large stress is generated in the diaphragm 43. Therefore, it is possible to suppress damage to the diaphragm 43 and easily increase the water use efficiency.

Further, since the diaphragm 43 is sandwiched between the anode power feeding body 41 and the cathode power feeding body 42, the contact between the plating layer 43 a and the anode power feeding body 41 of the diaphragm 43 and between the plating layer 43 a and the cathode power feeding body 42. The resistance is reduced and the voltage drop is suppressed. Thereby, electrolysis in the electrolysis chamber 40 is promoted, and electrolytic hydrogen water having a high dissolved hydrogen concentration can be generated.

A sealing member 46 for preventing water leakage from the mating surface of the first case piece 50 and the second case piece 60 is provided outside the outer peripheral edges of the anode power supply body 41 and the cathode power supply body 42. . The outer peripheral portion of the diaphragm 43 is sandwiched by the sealing member 46.

Each

case piece

50 and 60 is formed in a rectangular shape that is long in the vertical direction V along the flow of water in the electrolysis chamber 40. Accordingly, the electrolytic chamber 40 is formed in a rectangular shape that is long in the vertical direction V. Such a vertically long electrolytic chamber 40 makes the flow path in the electrolytic cell 4 long. As a result, the hydrogen gas generated in the cathode chamber 40B is easily dissolved in the water in the cathode chamber 40B, and the dissolved hydrogen concentration can be increased.

The electrolytic cell 4 is provided with L-shaped

joints

91, 92, 93, 94. The

joints

91 and 92 are attached to the lower part of the first case piece 50 and the second case piece 60 and connected to the flow rate adjusting valve 74. The

joints

93 and 94 are attached to the upper portions of the first case piece 50 and the second case piece 60 and connected to the flow path switching valve 81. By starting water flow to the electrolyzed water generator 1, a general flow of water is generated from the lower part to the upper part of the anode chamber 40A and the cathode chamber 40B.

The hydrogen gas generated in the cathode chamber 40B moves as a minute bubble above the cathode chamber 40B. In the present embodiment, the movement direction of hydrogen gas and the direction in which water flows generally coincide with each other, so that hydrogen molecules easily dissolve in water and the dissolved hydrogen concentration is increased.

FIG. 3 is a perspective view of the first case piece 50 and the second case piece 60 viewed from the inner surface side facing the electrolysis chamber 40 side. FIG. 4A is a front view of the first case piece 50 viewed from the inner surface side, and FIG. 4B is a front view of the second case piece 60 viewed from the inner surface side. FIG. 5 is an assembled cross-sectional view of the electrolytic cell 4 including the AA cross section and the BB cross section of FIG. 6 is a cross-sectional view of the electrolytic cell 4 in the same cross section as FIG.

Alignment surfaces 51 and 61 for fixing the first case piece 50 and the second case piece 60 are formed on the outer edge portions of the inner surfaces of the first case piece 50 and the second case piece 60. Inside the mating surfaces 51, 61, the inner walls are recessed from the mating surfaces 51, 61 in the thickness direction of the first case piece 50 and the second case piece 60, so that the

electrolysis parts

52, 62 are provided. The electrolysis unit 52 configures the anode chamber 40A, and the electrolysis unit 62 configures the cathode chamber 40B.

A plurality of first protrusions 53 are disposed on the inner surface of the first case piece 50. In this embodiment, the 1st convex part 53 contains the processus | protrusion 53P arrange | positioned discretely by 52 A of main parts of the electrolysis part 52. As shown in FIG. The main part 52A is an area that occupies most of the electrolysis part 52 located inside the end edge part 41e of the anode power supply body 41 and the end edge part 42e of the cathode power supply body 42. (Hereinafter, the same applies to the main part 62A of the electrolysis unit 62.) The first convex portions 53 are arranged in a matrix (matrix) in the vertical direction V and the horizontal direction H perpendicular to the vertical direction V. It is arranged. With respect to the arrangement of the protrusions, the “matrix” means an arrangement in which m protrusions are arranged in the vertical direction V and n protrusions are arranged in the horizontal direction H (an arrangement such as a matrix of m rows × n columns). An integer greater than or equal to 2. The same shall apply hereinafter).

On the other hand, a plurality of second convex portions 63 are disposed on the inner surface of the second case piece 60. In the present embodiment, the second convex portion 63 includes a protrusion 63 P that is discretely arranged on the main portion 62 A of the electrolysis portion 62. The second convex portions 63 are arranged in a matrix in the vertical direction V and the horizontal direction H.

Each first convex portion 53 is in contact with the anode power supply body 41 in the anode chamber 40A, and presses the anode power supply body 41 toward the second case piece 60 side. On the other hand, each 2nd convex part 63 is contact | abutted with the cathode electric power feeding body 42 in the cathode chamber 40B, and presses the cathode electric power feeding body 42 to the 1st case piece 50 side. Therefore, the stacked body 45 is sandwiched from both surfaces by the first convex portions 53 and the second convex portions 63.

1st convex part 53 contains the 1st protrusion 56 contact | abutted with the edge part 41e (refer FIG. 2, 6) of the anode electric power feeding body 41. As shown in FIG. The first protrusions 56 are provided around the protrusions arranged discretely in the main part of the electrolysis part 52 in the first protrusion 53. As a result, the edge 41e of the anode power supply 41 is pressed toward the diaphragm 43 by the first protrusion 56, the contact pressure between the edge 41e of the anode power supply 41 and the diaphragm 43 is increased, and the gap between the two is increased. Contact resistance is reduced.

On the other hand, the second convex portion 63 includes a second protrusion 66 that comes into contact with the end edge portion 42e (see FIGS. 2 and 6) of the cathode power supply body 42. The second protrusions 66 are provided around the protrusions that are discretely arranged in the main part of the electrolysis part 62 in the second convex part 63. Thereby, the edge part 42e of the cathode power supply body 42 is pressed by the 2nd protrusion 66 to the diaphragm 43 side, the contact pressure of the edge part 42e of the cathode power supply body 42 and the diaphragm 43 is raised, between both. Contact resistance is reduced.

Therefore, the electrolysis current flowing through the edge 41e of the anode power supply 41 and the edge 42e of the cathode power supply 42 is increased, and the electrolysis at each

edge

41e, 42e is promoted. Therefore, it is possible to easily increase the dissolved hydrogen concentration of the electrolytic hydrogen water generated in the cathode chamber 40B.

In the present embodiment, a plurality of the first protrusions 56 are provided along the edge 41e of the anode power feeder 41. Similarly, a plurality of second protrusions 66 are provided along the edge part 42 e of the cathode power supply body 42.

As shown in FIGS. 5 and 6, when the first case piece 50 and the second case piece 60 are fixed, the sealing member 46 is disposed outside the first protrusion 56 and the second protrusion 66. . Water is also supplied to the inside of the sealing member 46, that is, the edge 41 e of the

anode power supply

41 and 42 e of the cathode power supply 42.

As shown in FIGS. 3 to 6, the second protrusions 66 are spaced between the adjacent first protrusions 56. In other words, each first protrusion 56 is spaced between adjacent second protrusions 66. As a result, the edge 41 e of the anode power supply 41 and the edge 42 e of the cathode power supply 42 are separated from the first case piece 50 side and the second case piece 60 side by the first protrusion 56 and the second protrusion 66. Pressed alternately and supported. In addition, the hydrogen gas generated at the edge portion 42e is easily dissolved in the water flowing between the adjacent second protrusions 66, and the dissolved hydrogen concentration is further increased.

As shown in FIG. 6, the heights of the first protrusion 56 and the second protrusion 66 are set to such an extent that the edge 41 e of the anode power supply 41 and the edge 42 e of the cathode power supply 42 can be corrected to a waveform. It is preferable. Since the edge 41e and the cathode power supply 42 of the anode power supply 41 having such a waveform have a large bending rigidity, even if the laminated body 45 receives a large stress due to a pressure difference in the electrolytic chamber 40. The deformation is suppressed and damage to the diaphragm 43 is suppressed.

As shown in FIGS. 3 to 6, the first protrusion 56 includes a first vertical protrusion 57 that is long in the vertical direction V along the flow of water in the anode chamber 40A. The first vertically long protrusions 57 are in contact with the lateral edge 41 h in the lateral direction H of the anode power feeding body 41. The lateral edge 41h is pressed toward the diaphragm 43 by the first vertically long protrusion 57, and the contact pressure with the diaphragm 43 is increased. The horizontal edge 41h of the anode power supply 41 is, for example, a region that is 2% or less of the length in the horizontal direction H of the anode power supply 41 on the inner side from the edge in the horizontal direction H of the anode power supply 41. (Hereinafter, the same applies to the lateral edge 42h of the cathode power supply 42).

The second protrusion 66 includes a second vertical protrusion 67 that is long in the vertical direction V along the flow of water in the cathode chamber 40B. Each of the second vertically long protrusions 67 is provided between the adjacent first vertically long protrusions 57 in a side view when the electrolytic cell 4 is viewed from the lateral direction H. The second vertically long protrusion 67 contacts the horizontal end edge portion 42 h in the horizontal direction H of the cathode power supply body 42. The lateral edge 42h is pressed toward the diaphragm 43 by the second vertically long projection 67, and the contact pressure with the diaphragm 43 is increased. The second vertically long protrusions 67 may be provided alternately in the vertical direction V with respect to the first vertically long protrusions 57. When the first case piece 50 and the second case piece 60 are fixed, they are adjacent to each other. It may be provided at a position shifted in the horizontal direction H from the matching first vertically long protrusion 57.

The top 53a of the first convex portion 53 is configured to include a convex curved surface 53b having a center on the first case piece 50 side. The convex curved surface 53b includes a convex curved surface 57b formed at the top 57a of the first vertically long protrusion 57 shown in FIG. The convex curved surface 53b may be a quadratic curved surface such as a part of a side surface of a cylinder, or may be a cubic curved surface such as a part of the surface of a sphere. Since the top portion 53a is configured by the convex curved surface 53b, the stacked body 45 is curved with a gentle curvature, so that stress concentration on the diaphragm 43 is alleviated and damage to the diaphragm 43 is suppressed.

The top portion 63a of the second convex portion 63 is configured to include a convex curved surface 63b having a center on the second case piece 60 side. The convex curved surface 63b includes a convex curved surface 67b formed on the top 67a of the second vertically long projection 67 shown in FIG. The convex curved surface 63b is the same as the convex curved surface 53b.

In the present embodiment, when the first case piece 50 and the second case piece 60 are fixed, the second convex portion 63 is located between the first

convex portions

53 and 53 adjacent to each other at a distance closest to the vertical direction V. Has been placed. Accordingly, the second convex portion 63 is provided in one line fewer than the first convex portion 53. Further, the second convex portion 63 is disposed between the first

convex portions

53 and 53 adjacent to each other at a distance closest to the horizontal direction H.

Due to the relative arrangement of the first protrusions 53 and the second protrusions 63, the second protrusions 63 are discretely and evenly distributed in the vertical direction V and the horizontal direction H in the cathode chamber 40B. Will be scattered. As a result, water having a large flow velocity flows between the second convex portions 63 scattered in the vertical direction V and the horizontal direction H in the cathode chamber 40 B, and sufficient water is supplied to the surface of the cathode power supply 42. Therefore, for example, even when the electrolytic current supplied to each of the

power feeders

41 and 42 is increased to generate a large amount of hydrogen gas on the surface of the cathode power feeder 42, the dissolved hydrogen concentration of the electrolytic hydrogen water is locally increased. Near the saturation value, and the dissolved hydrogen concentration in the entire cathode chamber 40B is improved. Further, for example, even when the flow rate of water supplied to the cathode chamber 40B is small, the dissolved hydrogen concentration of the electrolytic hydrogen water is suppressed from locally approaching a saturation value, and dissolved hydrogen in the entire cathode chamber 40B. Concentration is improved.

On the other hand, in the anode chamber 40A, the first convex portions 53 are scattered in the vertical direction V and the horizontal direction H in a discrete and even manner, and the first convex portions 53 are scattered in the vertical direction V and the horizontal direction H in the anode chamber 40A. Water having a high flow velocity flows also between the one convex portion 53, and sufficient water is supplied to the surface of the anode power feeding body 41. Therefore, like the cathode chamber 40B described above, the dissolved oxygen concentration in the entire anode chamber 40A is improved. Thereby, the oxygen gas generated in the anode chamber 40A can be easily dissolved in the water in the anode chamber 40A and discharged.

The first convex portion 53 and the second convex portion 63 are formed in a vertically long shape that is long in the vertical direction V. The vertically long first convex portion 53 and the second convex portion 63 rectify the water in the anode chamber 40A and the cathode chamber 40B, and the laminated body 45 can be formed without hindering the general water flow in the vertical direction V. It can be firmly supported over a wide area. Therefore, the contact resistance between each of the

power feeding bodies

41 and 42 and the plating layer 43a of the diaphragm 43 is reduced, and the water in the electrolysis chamber 40 can be efficiently electrolyzed. In the present embodiment, an elliptical columnar protrusion is employed as the vertically long first convex portion 53, but it may be a long cylindrical protrusion or a rectangular parallelepiped protrusion.

Each first convex portion 53 comes into contact with the anode power feeding body 41 at the top portion 53a. The top 53a protrudes to the same height as the mating surface 51, for example. As a result, the anode power feeding body 41 is pressed and protrudes toward the second case piece 60 at the contact point with the top 53a. On the other hand, each 2nd convex part 63 contact | abuts to the cathode electric power feeding body 42 by the top part 63a. Thereby, the cathode power supply body 42 is pressed and protrudes toward the first case piece 50 at a contact portion with the top 63a.

In the present invention, since the second convex portion 63 is disposed between the first convex portions 53 adjacent to each other in the vertical direction V, the laminate 45 is corrected to have a waveform in a cross section along the vertical direction V. Yes. Furthermore, since the 2nd convex part 63 is arrange | positioned between the 1st

convex parts

53 and 53 which adjoin at the distance nearest to the horizontal direction H, the laminated body 45 is corrected to a waveform also in the cross section along the horizontal direction H. Has been. Since the corrugated laminate 45 has a large bending rigidity, even if the laminate 45 receives a large stress due to a pressure difference in the electrolysis chamber 40, the deformation is suppressed and the diaphragm 43 is damaged. Is suppressed.

As shown in FIGS. 3 and 4, on the inner surface of the first case piece 50 facing the electrolytic chamber 40 side, the second convex portion 63 (projection) of the second case piece 60 with the laminate 45 (see FIG. 2) interposed therebetween. It is desirable that a plurality of first small protrusions 54 be disposed at a position facing 63P). Each first small protrusion 54 blocks part of the water flowing in the vertical direction V between the first

convex portions

53 and 53 adjacent in the horizontal direction H, so that both ends of the first small protrusion 54 in the horizontal direction H, that is, It guides between the 1st

convex parts

53 and 53 adjacent to the vertical direction V. FIG. Thereby, the water in the anode chamber 40 A is locally stirred around the first small protrusion 54. Therefore, the flow of water supplied to the surface of the anode power supply 41 is further increased by the fusion of the global water flow in the vertical direction V by the first convex portion 53 and the local water flow by the first small protrusion 54. More uniform and dissolved hydrogen concentration is increased.

The first small protrusions 54 are preferably formed in a horizontally long shape in the horizontal direction H. Such a first small protrusion 54 has a high effect of guiding water between the first

convex portions

53 and 53 adjacent in the vertical direction V, and the flow of water supplied to the surface of the anode power supply 41 is further increased. Homogenized and dissolved hydrogen concentration is increased. In the present embodiment, an elliptical columnar protrusion is adopted as the horizontally long first convex portion 53, but it may be a long columnar or rectangular parallelepiped protrusion.

The height of the first small protrusion 54 is smaller than that of the first convex portion 53 and does not contact the anode power supply body 41. For this reason, a flow path is formed between the first small protrusion 54 and the anode power feeder 41, and the flow of water supplied to the surface of the anode power feeder 41 is made more uniform.

On the other hand, on the inner surface of the second case piece 60 facing the electrolytic chamber 40 side, at a position facing the first convex portion 53 (projection 53P) of the first case piece 50 with the laminated body 45 (see FIG. 2) interposed therebetween. It is desirable that a plurality of second small protrusions 64 be provided. Since the shape and operational effects of the second small protrusion 64 are the same as those of the first small protrusion 54, the description thereof is omitted.

In the present invention, the second small protrusion 64 provided in the vicinity of the second protrusion 66 guides the water in the cathode chamber 40 B toward the lateral edge 42 h of the cathode power supply 42. Water can be sufficiently supplied also to the surface of the horizontal end edge portion 42h. Therefore, the hydrogen gas generated by the action of promoting electrolysis at the edge portion 42e by the first protrusion 56 and the second protrusion 66 described above is easily dissolved in water, and the dissolved hydrogen concentration is easily increased.

As shown in FIGS. 3 and 6, the first small protrusion 54 is preferably formed with a groove 55 penetrating the first small protrusion 54 in the vertical direction V. The number, width, and depth of the groove 55 for one first small protrusion 54 can be set as appropriate. For example, in the present embodiment, one groove 55 is provided in the central portion in the lateral direction H of the first small protrusion 54. Further, the depth of the groove 55 is equal to the height of the first small protrusion 54. The groove 55 guides a part of the water flowing between the first

convex portions

53 and 53 adjacent in the horizontal direction H in the vertical direction V and allows the first small protrusions 54 to pass therethrough. The groove 55 makes the flow of water supplied to the surface of the anode power supply body 41 even more uniform.

Similarly, it is desirable that the second small protrusion 64 is formed with a groove 65 penetrating the second small protrusion 64 in the vertical direction V. The number of grooves 65 is the same as that of the groove 55. The groove 65 guides a part of the water flowing between the second

convex portions

63, 63 adjacent in the horizontal direction H in the vertical direction V and allows the second small protrusion 64 to pass therethrough. The groove 65 makes the flow of water supplied to the surface of the cathode power supply 42 even more uniform.

Note that the first small protrusion 54 and the second small protrusion 64 may impede the flow of water in the anode chamber 40A and the cathode chamber 40B. However, in the present embodiment, the height of the first small protrusion 54 is smaller than the height of the first convex portion 53, and the first small protrusion 54 does not contact the anode feeder 41. Therefore, a flow path is formed between the first small protrusion 54 and the anode power supply body 41, and the possibility that the first small protrusion 54 hinders the flow of water in the anode chamber 40A is limited. Similarly, the possibility that the flow of water in the cathode chamber 40B is hindered by the second small protrusion 64 is limited.

As shown in FIGS. 3 and 4, a first water diversion channel 58 D is formed at the lower part of the inner surface of the first case piece 50. The first diversion channel 58 D extends along the lateral direction H of the first case piece 50 and communicates with the electrolysis unit 52. The water flowing in from the joint 91 flows into the electrolysis unit 52 via the first diversion channel 58D, and flows upward through the gap such as the first convex portion 53. Similarly, a second water diversion channel 68 D is formed in the lower part of the inner surface of the second case piece 60. The second diversion channel 68 D extends along the lateral direction H of the second case piece 60 and communicates with the electrolysis unit 62. The water flowing in from the joint 92 flows into the electrolysis unit 62 via the second diversion channel 68D and flows upward through the gap such as the second convex portion 63.

On the other hand, a first water collecting channel 58 C is formed in the upper part of the inner surface of the first case piece 50. The first water collecting channel 58 C extends along the lateral direction H of the first case piece 50 and communicates with the electrolysis unit 52. The water that has moved above the electrolysis unit 52 is collected by the first water collecting channel 58 C and flows out of the electrolytic cell 4 from the joint 93. Similarly, a second water collecting channel 68 C is formed in the upper part of the inner surface of the second case piece 60. The second water collection channel 68 C extends along the lateral direction H of the second case piece 60 and communicates with the electrolysis unit 62. The water that has moved above the electrolysis unit 62 is collected by the second water collecting channel 68C and flows out of the electrolytic cell 4 from the joint 94.

With reference to the mating surface 51, the depth of the electrolysis unit 52 is smaller than that of the first water diversion channel 58D and the first water collection channel 58C. By such an electrolysis part 52, the speed of the water which flows through the electrolysis part 52 is raised, and it becomes easy to melt | dissolve oxygen gas. A slope 59 is formed at the step between the electrolysis unit 52 and the first water diversion channel 58D and the first water collection channel 58C. The slope 59 smoothes the flow of water in the anode chamber 40A and suppresses a decrease in the speed of water flowing through the electrolysis unit 52.

Similarly, when the mating surface 61 is used as a reference, the depth of the electrolysis unit 62 is smaller than that of the second water diversion channel 68D and the second water collection channel 68C. By such an electrolysis part 62, the speed of the water which flows through the electrolysis part 62 is raised, and it becomes easy to melt | dissolve hydrogen gas. A slope 69 is formed at the step between the electrolytic unit 62 and the second water diversion channel 68D and the second water collection channel 68C. The slope 69 smoothes the flow of water in the cathode chamber 40B and suppresses a decrease in the speed of the water flowing through the electrolysis unit 62.

FIG. 7 shows a first case piece 50 A that is a modification of the first case piece 50. On the other hand, FIG. 8 shows a second case piece 60 A that is a modification of the second case piece 60.

The first case piece 50A is different from the first case piece 50 in that a first protrusion 56 is provided around the first water diversion channel 58D (see FIG. 3) and the first water collection channel 58C. Similarly, the second case piece 60A is different from the second case piece 60 in that a second protrusion 66 is provided around the second water diversion channel 68D (see FIG. 3) and the second water collection channel 68C. Of the first case piece 50A and the second case piece 60A, the configuration of the first case piece 50 and the second case piece 60 can be adopted for portions not described below.

7, the first protrusion 56 includes a first horizontally long protrusion 57A that is long in the lateral direction H. A plurality of first lateral protrusions 57A are provided along the lower end of the first water diversion channel 58D and the upper end of the first water collection channel 58C in FIG. 3, and the vertical end edge portion 41v in the vertical direction V of the anode feeder 41 (FIG. 2). Contact). Thereby, the vertical end edge portion 41v of the anode power feeding body 41 is supported by the first horizontally long protrusion 57A. Therefore, even when a large pressure difference is generated between the anode chamber 40A and the cathode chamber 40B, deformation of the stacked body 45 is suppressed, and damage to the diaphragm 43 is suppressed. Note that the vertical edge 41v of the anode power supply 41 is, for example, a region of 2% or less of the length of the anode power supply 41 in the vertical direction V on the inner side from the edge in the vertical direction V of the anode power supply 41. (Hereinafter, the same applies to the vertical edge portion 42v of the cathode power supply body 42).

Similarly, as shown in FIG. 8, the second protrusion 66 includes a second horizontally long protrusion 67 A that is long in the horizontal direction H. The second horizontally long protrusions 67A are spaced between adjacent first horizontally long protrusions 57A in a top view when the electrolytic cell 4 is viewed from the vertical direction V. A plurality of second horizontally long projections 67A are provided along the lower end of the second water diversion channel 68D and the upper end of the second water collecting channel 68C in FIG. 3, and the vertical end edge portion 42v in the vertical direction V of the cathode feeder 42 (FIG. 2). Contact). Thereby, the vertical end edge portion 42v of the cathode power supply body 42 is supported by the second horizontally long protrusion 67A. Therefore, even when a large pressure difference is generated between the anode chamber 40A and the cathode chamber 40B, deformation of the stacked body 45 is suppressed, and damage to the diaphragm 43 is suppressed. The second lateral projections 67A need only be provided alternately in the lateral direction H with respect to the first lateral projections 57A. When the first case pieces 50 and the second case pieces 60 are fixed, they are adjacent to each other. It may be provided at a position shifted in the vertical direction V from the first laterally long projection 57A.

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 4 in which an electrolysis chamber 40 to which water to be electrolyzed is supplied, an anode feeder 41 disposed opposite to each other in the electrolysis chamber 40, and The separator 43 is provided between the cathode feeder 42, the anode feeder 41 and the cathode feeder 42 and separates the electrolysis chamber 40 into an anode chamber 40A and a cathode chamber 40B. The electrolytic cell 4 is sandwiched between the anode power supply 41 and the cathode power supply 42, and the electrolytic cell 4 is electrolyzed by fixing the first case piece 50 on the anode power supply 41 side and the second case piece 60 on the cathode power supply 42 side. A chamber 40 is formed, and a first convex portion 53 that contacts the anode power supply body 41 is disposed on the inner surface of the first case piece 50, and an inner surface of the second case piece 60 contacts the cathode power supply body 42. The second convex portion 63 is disposed, and the first convex portion 53 is the anode power feeding body 4. Of including edge 41e and the first protrusion 56 abutting, the second convex portion 63 may include at edge 42e and the second protrusion 66 that abuts the cathode current collector 42.

For example, the 1st convex part 53 and the 2nd convex part 63 which are provided in the principal part of the

electrolysis parts

52 and 62 are restricted to the convex part of the form scattered in the longitudinal direction V of the 1st case piece 50 discretely. However, various forms may be used.

FIG. 9 shows a first case piece 50B, which is another modification of the first case piece 50, and a second case piece 60B, which is another modification of the second case piece 60. The first case piece 50B is a convex shape indicated by reference numeral 32 in FIG. 6 of Patent Document 1 above, instead of the first convex portion 53 provided in the main portion 52A (see FIG. 3) of the electrolysis portion 52. It differs from the 1st case piece 50 by the point by which the 1st convex part 53B equivalent to a part is applied. Of the first case piece 50B, the configuration of the first case piece 50 can be adopted for portions not described below.

The first convex portion 53 includes a first convex portion 53B and a first protrusion 56. The first convex portion 53B extends continuously in the vertical direction V from the upper end of the first water diversion channel 58D to the lower end of the first water collecting channel 58C. In this case, the 1st groove part 54B is provided between the adjacent 1st convex parts 53B.

On the other hand, in the second case piece 60B, a second convex portion 63B equivalent to the first convex portion 53B is applied instead of the second convex portion 63 provided in the main portion 62A (see FIG. 3) of the electrolysis portion 62. This is different from the second case piece 60. Of the second case piece 60B, the configuration of the second case piece 60 can be adopted for portions not described below.

The second convex portion 63 includes a second convex portion 63B and a second protrusion 66. The second convex portion 63B extends continuously in the vertical direction V from the upper end of the second water diversion channel 68D to the lower end of the second water collecting channel 68C. In this case, a second groove portion 64B is provided between the adjacent second convex portions 63B.

1st convex part 53B and 2nd convex part 63B are provided so that it may be located in the horizontal direction V alternately. Accordingly, when the first case piece 50B and the second case piece 60B are fixed, the first convex portion 53B and the second groove portion 64B face each other with the stacked body 45 interposed therebetween, and the second convex portion 63B and the second convex portion 63B The one groove portion 54B faces. For example, in the electrolytic cell 4 in which hydrogen gas can be sufficiently dissolved in water flowing through the first groove portion 54B and the second groove portion 64B, the first case piece 50B and the second case piece 60B can be suitably applied. .

In the first case piece 50B and the second case piece 60B, a part of the first convex part 53 and the second convex part 63 may be replaced with the first convex part 53B and the second convex part 63B. For example, the first case piece 50B is provided with a mixture of first protrusions 53 that are discretely arranged in the main part of the electrolysis part 52 and first groove parts 54B that extend continuously in the vertical direction V. May be. Similarly, the second case piece 60B is provided with a mixture of second convex portions 63 arranged discretely at the main part of the electrolysis unit 62 and second groove portions 64B extending continuously in the vertical direction V. It may be. The features of the first case piece 50B and the second case piece 60B can be applied in appropriate combination with the first case piece 50A and the second case piece 60A shown in FIGS.

FIG. 10 shows a first case piece 50C, which is another modification of the first case piece 50, and a second case piece 60C, which is another modification of the second case piece 60. The first case piece 50C is different from the first case piece 50 in that the first convex portion 53 does not exist in the main part 52A (see FIG. 3) of the electrolysis part 52. Similarly, the second case piece 60 C is different from the second case piece 60 in that the main part 62 A (see FIG. 3) of the electrolysis part 62 does not have the second convex part 63. Of the first case piece 50C and the second case piece 60C, the configurations of the first case piece 50 and the second case piece 60 can be adopted for portions not described below.

The first protrusion 53 includes a first protrusion 56, and the second protrusion 63 includes a second protrusion 66. For example, in the electrolytic cell 4 in which a large contact pressure is not required between the diaphragm 43 and the anode power supply 41 and the cathode power supply 42, the first case piece 50C and the second case piece 60C can be suitably applied. . The features of the first case piece 50C and the second case piece 60C can be applied in appropriate combination with the first case piece 50A and the second case piece 60A shown in FIGS.

Further, in the

first case piece

50, 50A, 50B, or 50C, a pair that continues from the outer edge of the first water diversion channel 58D to the outer edge of the first water collecting channel 58C along the lateral edge 41h of the anode power feeder 41. The first protrusion 56 that contacts the lateral end edge portion 41h may be formed by the convex portion. Such first protrusions 56 are applied in place of the plurality of discrete first longitudinal protrusions 57. Similarly, in the

second case piece

60, 60A, 60B, or 60C, it continues from the outer edge of the second water diversion channel 68D to the outer edge of the second water collecting channel 68C along the lateral end edge 42h of the cathode power feeder 42. A second protrusion 66 that contacts the lateral edge 42h may be formed by a pair of convex portions. Such second protrusions 66 are applied in place of the plurality of discrete second longitudinal protrusions 67.

According to the first protrusion 56 and the second protrusion 66 configured by the convex portions, the contact resistance with the diaphragm 43 in the vicinity of the horizontal end edge 41h and the horizontal end edge 42h is reduced. The electrolytic current flowing in the vicinity of the portion 41h and the side edge portion 42h is increased, and electrolysis is further promoted. Note that the heights of the first protrusion 56 and the second protrusion 66 due to such convex portions are set to such an extent that the diaphragm 43 is not damaged by the contact pressure between the diaphragm 43 and the anode feeder 41 and the cathode feeder 42. It is desirable to be done.

Further, in the first case piece 50A, a vertical pair of convex portions that extend along the vertical edge 41v of the anode power feeder 41 and across the outer edge of the first water diversion channel 58D and the outer edge of the first water collecting channel 58C. The 1st protrusion 56 contact | abutted with the edge part 41v may be comprised. Such a first protrusion 56 is applied in place of a plurality of discrete first lateral protrusions 57A. Similarly, in the second case piece 60A, a second protrusion 66 that contacts the vertical end edge portion 42v may be configured by a pair of convex portions that continue along the vertical end edge portion 42v of the cathode power supply 42. . Such a second protrusion 66 is applied in place of the plurality of discretized second horizontally long protrusions 67A.

According to the first protrusion 56 and the second protrusion 66, the diaphragm 43 can be firmly supported in the vicinity of the vertical edge 41v and the vertical edge 42v, so that a large gap is formed between the anode chamber 40A and the cathode chamber 40B. Even when a pressure difference occurs, deformation of the laminated body 45 is suppressed, and damage to the diaphragm 43 is suppressed. Note that the heights of the first protrusion 56 and the second protrusion 66 due to such convex portions are set to such an extent that the diaphragm 43 is not damaged by the contact pressure between the diaphragm 43 and the anode feeder 41 and the cathode feeder 42. It is desirable to be done.

DESCRIPTION OF SYMBOLS 1 Electrolyzed water production | generation apparatus 4 Electrolytic tank 40 Electrolytic chamber

40A Anode chamber

40B Cathode chamber 41 Anode feeder 41e Edge edge 42 Cathode feeder 42e Edge edge 43 Diaphragm 50 First case piece 53 1st convex part 56 1st protrusion 57 Longitudinal projection 60 Second case piece 63 Second convex portion 66 Second projection 67 Longitudinal projection

Claims

An electrolytic cell in which an electrolytic chamber to which water to be electrolyzed is supplied is formed;
An anode feeder and a cathode feeder disposed opposite to each other in the electrolytic chamber;
Electrolyzed water generation comprising a diaphragm disposed between the anode feeder and the cathode feeder and dividing the electrolysis chamber into an anode chamber on the anode feeder side and a cathode chamber on the cathode feeder side A device,
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 electrolysis chamber side, a first convex portion that is in contact with the anode feeder is disposed,
On the inner surface of the second case piece facing the electrolytic chamber side, a second convex portion that comes into contact with the cathode power feeder is disposed,
The first protrusion includes a first protrusion that contacts an end edge of the anode power feeding body,
The electrolyzed water generator according to claim 2, wherein the second protrusion includes a second protrusion abutting against an edge of the cathode power supply.
A plurality of the first protrusions are provided along an edge portion of the anode power feeder,
The electrolyzed water generating apparatus according to claim 1, wherein a plurality of the second protrusions are provided along an edge portion of the cathode power feeder.
The electrolyzed water generating apparatus according to claim 2, wherein the second protrusion is disposed between the adjacent first protrusions.
The first protrusion and the second protrusion include a vertically long protrusion in the vertical direction along the flow of water in the electrolytic chamber,
4. The electrolyzed water generating device according to claim 2, wherein the vertically long protrusion is in contact with a lateral end edge in a lateral direction perpendicular to the longitudinal direction of the anode feeder or the cathode feeder.
The first protrusion and the second protrusion include a laterally long protrusion that is long in a lateral direction perpendicular to the longitudinal direction,
The electrolyzed water generating apparatus according to any one of claims 2 to 4, wherein the laterally long protrusion is in contact with the longitudinal edge portion of the longitudinal direction of the anode feeder or the cathode feeder.
The top of the first convex part includes a curved surface having a center on the first case piece side,
The electrolyzed water generating apparatus according to any one of claims 1 to 5, wherein a top portion of the second convex portion includes a curved surface having a center on the second case piece side.
The inner surface of the first case piece facing the electrolytic chamber side is higher than the first convex portion at a position facing the second convex portion with the diaphragm, the anode power feeding body, and the cathode power feeding body interposed therebetween. A small first small protrusion is disposed;
The inner surface of the second case piece facing the electrolytic chamber side is higher than the second convex portion at a position facing the first convex portion with the diaphragm, the anode power feeding body, and the cathode power feeding body interposed therebetween. The electrolyzed water generating apparatus according to any one of claims 1 to 6, wherein a plurality of second small protrusions having a small length are disposed.
The first small protrusion does not contact the anode feeder,
The electrolyzed water generating apparatus according to claim 7, wherein the second small protrusion does not contact the cathode power supply body.