JP5899097B2 - Electrode plate support body, electrolytic cell equipped with electrode plate support body, and electrolyzed water production apparatus - Google Patents

Description

  The present invention relates to an electrode plate support that forms an electrolysis chamber by holding an electrode plate in a bipolar electrolytic cell that electrolyzes raw water such as hydrochloric acid to generate an electrolytic product such as chlorine. The present invention relates to an electrolytic cell and an electrolyzed water production apparatus provided with a support.

The bipolar electrolytic cell includes a housing and a plurality of electrode plates in which the plate surfaces are arranged opposite to each other in the housing, and raw water such as hydrochloric acid to be electrolyzed is contained in the housing. An electrolysis product such as chlorine is produced by energizing in a held state. In this electrolytic cell, if the edge of the electrode plate is exposed to the raw material water, a leakage current is generated during electrolysis and the plate surface is corroded. Therefore, the edge of an electrode plate is arrange | positioned in a housing | casing in the state coat | covered with the insulating member (for example, the following patent document 1).
The electrode plate described in Patent Document 1 is configured so that the end edge thereof is covered with fluorine-based rubber or fluorine-based resin so that no leakage current is generated.

JP 2002-186970 A

However, the insulator covered with the conventional electrode plate was not considered at all about the structure which can satisfy the ease and certainty of attachment to an electrode plate.
Further, the conventional electrode plate insulator does not take into consideration the configuration necessary for easily and reliably attaching the electrode plate to the spacer. Therefore, it is difficult to attach the electrode plate to the spacer, or the electrode plate attached to the spacer is not reliably supported, so the electrode plate may swing, tilt, or come off the spacer, causing trouble in electrolysis. The problem that it was difficult to be carried out was generated.
Therefore, the present invention provides an electrode plate support, an electrolytic cell, and an electrolyzed water production apparatus that can easily and reliably cover and insulate the edge of the electrode plate and can appropriately support the electrode plate. This is the issue.

The invention according to claim 1 is an electrolytic chamber in which a plurality of electrode plates are arranged in the housing with the one plate surface facing in one direction and spaced apart from each other, and formed between the electrode plates. Used in a bipolar electrolytic cell that electrolyzes raw material water and generates electrolysis products, and covers and supports the entire circumference of the edge of the electrode plate, wherein the support is a flat plate A plurality of long and small pieces are combined to form a frame shape, and each of the small pieces is fitted into an end face of one end in the width direction of the small piece to fit the edge of one electrode plate. groove are Ichijo formed, the plurality of small pieces are in a state of being fitted into the edge of the electrode plate in each of the fitting groove in the longitudinal direction of the ends abut one end portion of said small pieces, One plate surface side of this small piece is cut out to form a thin-walled portion, and The other plate surface side of the part is cut out to form a thin part, and the one end and the other end are perpendicular to the direction between both ends and have an imaginary line passing through the center in the thickness direction as an axis. It is characterized by being formed in a shape that coincides with each other when the plate surface is inverted .
According to the present invention, since the end edge of the electrode plate is inserted into the insertion groove of the small piece, the end edge can be easily and reliably insulated. In addition, since the small piece in which one insertion groove is formed is attached to one electrode plate, the small piece or the support can be easily and reliably attached to the electrode plate.
In addition, when the plate surface of the small piece is reversed, the shape of one end matches the shape of the other end, so the small piece can be attached to the electrode plate regardless of the orientation of the plate surface. Can be made.

The invention according to claim 2 penetrates in the thickness direction on the other end side in the width direction of the small piece, and feeds the raw material water from the one plate surface side to the other plate surface side or the other plate. A notch or a through-hole that flows from the surface side to the one plate surface side is formed.
According to the present invention, since the notch or the through hole is formed, the raw material water can flow between the electrolytic chambers through the notch or the through hole.

The invention according to claim 3 is the support according to claim 1 or 2 , the electrode plate supported by the support, and the engaging groove for supporting the support supporting the electrode plate at a plurality of intervals. And a housing formed on the inner wall surface.
According to the present invention, the support can be inserted into an arbitrary engagement groove formed in the housing, and the capacity of the electrolytic chamber formed by the electrode plate can be easily set.

Invention of Claim 4 is equipped with the support body of Claim 3 , and is connected with the control part which controls operation | movement of this electrolytic vessel, and the said electrolytic vessel, The said electrolytic product obtained by this electrolytic vessel And a mixing section that mixes with diluted water to form electrolyzed water.
According to the present invention, the production capacity of the electrolyzed water can be freely changed by the electrolytic cell capable of easily changing the capacity of the electrolysis chamber.

According to the electrode plate support according to the present invention, since the insertion groove of the small piece is relatively fitted into the end edge of the electrode plate, the end edge can be easily and reliably insulated. And since it is the structure which attaches the several small piece in which the insertion groove | channel was formed to one electrode plate, a small piece can be easily and reliably mounted to an electrode plate. Accordingly, it is possible to prevent the electrode plate from being corroded due to the occurrence of leakage current, and to provide an effect that a support body that can be insulated and supported can be attached to the electrode plate with high work efficiency.
In addition, since the electrode plate supported by the flat support member may be inserted into the engagement groove of the housing, the electrode plate provided with the support member is simply and stably disposed in the housing. There is an effect that can be.

These are the schematic block diagrams of the electrolyzed water manufacturing apparatus provided with the electrolytic vessel shown as one Embodiment of this invention. These are the perspective views which decomposed | disassembled and showed the electrolytic cell shown as one Embodiment of this invention. These are the longitudinal cross-sectional views which showed the electrolytic cell shown as one Embodiment of this invention. These are the front views which showed the support body shown as one Embodiment of this invention. These are the perspective views which decomposed | disassembled and showed the support body shown as one Embodiment of this invention. FIG. 6 is a view showing a support of an electrolytic cell shown as an embodiment of the present invention, (a) is a plan view of one support shown in FIG. ) Is a bottom view of the support viewed from the Y2 direction. These are the front views which showed the modification of the support body shown as one Embodiment of this invention. These are the front views which showed the modification of the support body shown as one Embodiment of this invention.

Hereinafter, a bipolar electrolyzer shown as an embodiment of the present invention and an electrolyzed water production apparatus equipped with the electrolyzer will be described with reference to FIGS.
As shown in FIG. 1, an electrolyzed water production apparatus A includes an electrolyzer 1 that electrolyzes raw water to generate electrolyzed products, and a tank that mixes electrolyzed products obtained in the electrolyzer 1 with dilution water W ( (Mixing unit) 100, a pipe 101 interposed so as to connect the tank 100 and the electrolytic cell 1, and a control unit 102 that controls the operation of the electrolytic cell 1.

  A bipolar electrolysis cell (hereinafter referred to as “electrolysis cell”) 1 according to the present invention electrolyzes raw material water containing chlorine ions such as a sodium chloride aqueous solution and a hydrochloric acid aqueous solution, and produces chlorine gas by the action of electrolytic oxidation. And the like, and is mounted on an electrolyzed water production apparatus that has a mixing section with water and the like and produces hypochlorous acid water. In each embodiment described below, dilute hydrochloric acid is used as raw water, and chlorine is used as an electrolytic product.

FIG. 2 is a perspective view showing the electrolytic cell 1 disassembled in the direction between the plate surfaces of the electrode plates 5 and 5. As shown in this figure, the electrolytic cell 1 includes a substantially rectangular parallelepiped housing 2, support bodies 4, 4... In which a hollow hole 3 is formed and disposed inside the housing 2, and a support body 4. The electrode plates 5, 5... Are sealed in a liquid-tight manner in a state in which raw water (not shown; the same applies hereinafter) is filled in the housing 2 in advance.
The housing 2 includes side plates 6A to 6D, a bottom plate 6E, and a top plate 6F, which are made of a synthetic resin such as vinyl chloride resin, carbonate resin, or acrylic resin.

  The side plates 6A to 6D and the bottom plate 6E are plate-like bodies each having a predetermined thickness and having a rectangular shape in plan view. On the edge of the bottom plate 6E, side plates 6A to 6D are erected with their end surfaces in contact with each other. The end surfaces of the side plates 6A to 6D and the side plates 6A to 6D and the bottom plate 6E are liquid-tight at the contact surfaces. It is bonded and fixed so as to form a hollow box shape.

FIG. 3 is a longitudinal sectional view of the electrolytic cell 1 in an assembled state, and shows a cross section at the center of the electrode rod insertion hole 8. As shown in the figure, each of the side plates 6A and 6C has a head insertion step 7 and an electrode rod insertion hole 8 that penetrate in the thickness direction at the center in the width direction and slightly below the center in the height direction. Is formed.
In addition, a stepped portion 10 for arranging a spacer 9 that fills a gap with the electrode plate 5 positioned nearest to the inner surface of the side plates 6A and 6C is formed.

On the side plates 6B and 6D (the side plate 6B is omitted in FIG. 3), the ridges 15, 15,... Formed at a predetermined interval from the upper edge of the side plates 6B and 6D vertically downward are equally spaced in the width direction. A plurality of engagement grooves 16, 16,... Are formed between the protrusions 15, 15,.
The same number of engaging grooves 16 of the side plate 6B and the engaging grooves 16 of the side plate 6D are formed to face each other.

As shown in FIGS. 2 and 3, the top plate 6 </ b> F is a plate-like body having a predetermined thickness dimension and formed in a rectangular shape in plan view.
On the top surface of the top plate 6F, there are formed a bulging portion 17 that is formed in a spherical shape and solid, and a protruding portion 18 that protrudes horizontally from the bulging portion 17.
Inside the bulging portion 17 is formed a lead-out flow path 19 that collects the electrolytic product above and sends it to the lead-out port 20. The outlet channel 19 is cut out into a substantially semicircular shape in side view so as to divide the bulging portion 17 into two parts with a predetermined width dimension, and is opened at the lower surface of the top plate 6F. The opening on the lower surface of the lead-out channel 19 straddles all the notches 44, 44,.

The protruding part 18 extends from the upper part of the bulging part 17 in the direction of the side plate 6B.
The projecting portion 18 is formed with a lead-out port 20 through which the lead-out flow path 19 communicates with the outside of the tip of the projecting portion 18 to lead out the electrolytic product.

The bottom surface of the top plate 6F protrudes so as to be fitted into the inner shape formed by the side plates 6A to 6D, and is in contact with the upper ends of the ridges 15, 15 formed on the side plates 6B, 6D. The insertion part 25 to be inserted is formed.
A gasket 27 is attached to the lower surface of the outer peripheral portion of the fitting portion 25.

  The electrode plate 5 is a plate made of a metal such as a titanium alloy, and is formed in a substantially square shape. One plate surface serving as the anode of the electrode plate 5 is coated with noble metals such as platinum (Pt) and iridium (Ir), and the other plate surface serving as the cathode is also coated with Pr on a substrate made of titanium. Or a catalyst coated with a catalyst such as Ir. Note that Pt or Ir is not essential for the generation of hydrogen gas on the cathode surface, and a catalyst different from that on the anode surface may be coated. In addition, when titanium is used as the base material, hydrogen gas can be generated even without catalyst coating. Therefore, the simplest form of the electrode having both Yin and Yang surfaces on the front and back of one electrode plate 5 is only one side. Other coatings can also be used.

  Each electrode plate 5 is arranged between the side plates 6A and 6C facing each other at a predetermined interval with the plate surfaces arranged in one direction between the side plates 6A and 6C. Among them, the electrode plates 5 arranged at both ends are fixed with metal electrode bars 28 at the center thereof.

The electrode rod 28 has a head portion 29 formed at one end portion and a male screw portion 28 a formed at the outer surface of the other end portion, and the head portion 29 is fixed to the center portion of the electrode plate 5.
A detachable spacer 9 is disposed on the step portion 10 between the electrode plate 5 and the side plates 6A and 6C disposed at both ends. A frame-like insulator 31 is disposed on the other plate surface of the electrode plate 5 to cover and insulate the edge 5R of the electrode plate 5 located at both ends. The hollow hole 31 a of the frame-shaped insulator 31 is formed in a rectangular shape smaller than the plate surface of the electrode plate 5, and the frame-shaped outer shape is formed in a rectangular shape larger than the outer shape of the electrode plate 5. Covers the edges.

  The support 4 shown in FIG. 4 is formed of an insulating synthetic resin such as a vinyl chloride resin or a carbonate resin, covers the entire circumference of the edge 5R of the electrode plate 5, and places the electrode plate 5 in the hollow hole 3 thereof. As shown in FIG. 5, the end portions of the four separable small pieces 4a are brought into contact with each other.

  As shown in FIG. 5, one small piece 4a is a substantially strip-shaped flat plate member (long and flat plate shape), and the dimension in the longitudinal direction (arrow X direction) is the edge 5R of the electrode plate 5 shown in FIG. The intermediate portion 35 in the direction of the arrow X is longer than the thickness of the electrode plate 5 and is thicker than the thickness of the electrode plate 5 (hereinafter, the thick intermediate portion is referred to as a “thick portion 35”).

  As shown in FIGS. 6A and 6B, the end portions 36A and 36B located at both ends in the longitudinal direction are such that the wall portion having the same thickness dimension as the thick portion 35 passes through the center in the thickness direction. The half of the wall portion is cut out on the virtual plane M that bisects the wall portion, and is formed on different plate surface sides between the both end portions 36A and 36B with the virtual plane M as a boundary. (Hereinafter, the end portions 36A and 36B are referred to as “thin portions 36A and 36B”). As shown in FIG. 5, the thin portions 36A and 36B extend from the edge of the thick portion 35 to the same length as the length L in the width direction of the thick portion 35, and are formed in a substantially square shape. ing.

As shown in FIGS. 5 and 6, the two flat surfaces forming the thick portion 35 are arranged in the width direction (the arrow Y direction in FIG. 5, the paper surface in FIG. 6) in order to promote the flow of liquid or gas. Channels 37a, 37b, 37c that are recessed so as to penetrate in the depth direction) are formed in the extending direction X of the thick portion 35 with a predetermined width dimension.
In addition, the peripheral edge of the small piece 4a is made thinner toward a middle portion in the thickness direction with a predetermined width dimension except for an end portion on one end side in the width direction, and is formed in an engagement groove 16 of the casing 2 to be described later. An engaged wall portion 45 that is inserted and locked by sliding is formed.

An insertion groove 38 that penetrates in the longitudinal direction (arrow X direction) is formed on the end face on one end side in the width direction (arrow Y direction) of the thick portion 35, and a plurality of insertion grooves 38 are formed on the other end side in the arrow Y direction. A notch 44 is formed.
As shown in FIGS. 6B and 6C, the insertion groove 38 is formed vertically between the inner wall surfaces 32a and 33a of the wall portions 32 and 33 facing each other and between these inner wall surfaces 32a and 33a. It is formed by the back wall surface 34.
The extension dimension of the insertion groove 38 or the thick part 35 is formed to be shorter than the edge 5R of the electrode plate 5 so that the corners K, K at both ends of the electrode plate 5 protrude from the insertion groove 38. The thickness dimension of the fitting groove 38 is formed to be approximately the same as the thickness dimension of the electrode plate 5 so that the electrode plate 5 can be fitted with almost no gap.

As shown in FIG. 5 and FIG. 6B, insertion recesses 39 are formed in the thin portions 36 </ b> A and 36 </ b> B formed at both ends of the thick portion 35.
The insertion recess 39 is formed in each inner side surface 36a, 36b facing the imaginary plane M of each thin portion 36A, 36B with a rectangular shape in plan view and recessed in half the thickness dimension of the electrode plate 5 in the thickness direction. It has two side surfaces 40, 41 and a bottom surface 43 surrounded by the side surfaces 40, 41.

  One side surface 40 of the insertion recess 39 is formed on an extended surface of the back wall surface 34 of the insertion groove 38, and the other side surface 41 is orthogonal to the one side surface 40 and the extending direction of the insertion groove 38. It is formed in the direction orthogonal to. Further, the bottom surface 43 of the insertion recess 39 surrounded by the side surfaces 40 and 41 is formed on the inner wall surface 32a of the insertion groove 38 or an extended surface of the inner wall surface 33a. The insertion recesses 39 formed in the both thin portions 36A and 36B fit the wall portions on the one surface 5a side and the wall portions on the other surface 5b side of the corner portions K and K of the inserted electrode plate 5, respectively. It is supposed to let you.

Under the above configuration, the small piece 4a is inserted into the edge 5R extending from the corner K to the corner K of the electrode plate 5 by the insertion groove 38 and the insertion recess 39, and the extended edge 5R is extended. It is configured so that it does not move relative to the current direction.
Further, the small piece 4a has the shape of the thin portion 36A when the plate surface of the small piece 4a is inverted with the virtual line F1 passing through the center in the thickness direction orthogonal to the longitudinal direction (arrow X direction) of the small piece 4a. It is configured to be rotationally symmetric so that the shape of the thin portion 36B matches.

  The notch 44 is directed toward the insertion groove 38 and in the insertion groove 38 in a region where the flow paths 37a, 37b, 37c on the side opposite to the insertion groove 38 (the other end side in the width direction (arrow Y direction)) are formed. And penetrates in the thickness direction of the small piece 4a. The depth dimension of the notch 44 (intrusion dimension in the insertion groove 38 side direction) is formed to be larger than the width dimension of the engaged wall portion 45.

In order to mount the small piece 4 a on the electrode plate 5 to be the support body 4, the insertion groove 38 is sequentially inserted into each end edge 5 </ b> R toward the end edge 5 </ b> R of the electrode plate 5.
Then, each small piece 4a is arranged in a direction orthogonal to another adjacent small piece 4a, and one thin portion 36A, 36B of one small piece 4a and the other thin portion 36B, 36A of the other small piece 4a, And the inner side surfaces 36a and 36b shown in FIG. 6B are opposed to each other. Further, the insertion recesses 39 face each other, and as shown in FIG. 4, the outer shapes of the overlapped thin portions 36A and 36B are matched to form a rectangular inner shape and outer shape by all the small pieces 4a. It becomes the one support body 4 which consists of a flat plate member.

When the plurality of small pieces 4a are combined to form the support body 4, the insertion grooves 38 and the insertion recesses 39 of the respective small pieces 4a are opened to the inside so that the electrode plate 5 is inserted thereinto and covers the edge 5R. The insertion groove 50 becomes.
Moreover, the outer edge of the support body 4 becomes the to-be-engaged wall part 45 which became a series in the outer peripheral direction.
Further, the notches 44 are directed in the direction of opening outward at the respective outer edges.

As shown in FIG. 3, the electrolytic cell 1 composed of each of the above components is assembled by disposing an electrode plate 5 and a support 4 in a housing 2.
That is, the electrode rod 28 fixed to the electrode plate 5 closest to the side plate 6A is inserted into the electrode rod insertion hole 8 from the inner surface side of the side plate 6A, and the electrode rod 28 fixed to the electrode plate 5 closest to the side plate 6C. Is inserted into the electrode rod insertion hole 8 from the inner surface side of the side plate 6C. Then, the nut 54 is tightened with the tube member 51, the washer 52, and the spring washer 53 interposed in the male screw portion 28 a of each electrode rod 28.

Spacers 9 are arranged on the step portions 10 on the inner surfaces of the side plates 6A and 6C, and an insulator 31 is inserted and arranged on the other plate surface side of the electrode plate 5.
On the other hand, as shown in FIGS. 4 and 5, the fitting groove 38 and the fitting recesses 39, 39 of the four small pieces 4a are relatively fitted around the entire edge 5R of the electrode plate 5, so that the electrode plate 5 is hollow. A plurality of support bodies 4 held in 3 are prepared. And the to-be-engaged wall part 45 of the support body 4 is placed in the predetermined engagement groove 16 so that the plurality of support bodies 4 holding the electrode plate 5 are arranged in the housing 2 at a predetermined interval. Insert it.

  Then, an appropriate amount of raw water to be electrolyzed is injected from the upper end opening surrounded by the side plates 6A to 6D, the top plate 6F is covered, and the top plate 6F and the side plates 6A to 6A are fixed with a fixing tool such as a screw not shown. The electrolytic cell 1 holding the raw material water is completed by tightening 6D and sealing in a liquid-tight manner.

In this case, the hollow hole 3 of each support 4 is closed almost completely by the electrode plate 5, and the space formed by arranging the electrode plates 5, 5. The electrolysis chamber C is electrolyzed, and the raw water is held in the electrolysis chamber C.
On the other hand, the electrolysis chambers C and C communicate with each other via a notch 44 of the support 4 so that the raw water or the produced electrolytic product can freely flow.

  Further, the flow paths 37a to 37c of the small pieces 4a arranged in the horizontal direction below the support 4 and the flow paths 37a, 37b and 37c of the small pieces 4a and 4a arranged in the vertical direction on both sides are respectively provided with the notches 44. The flow path 37a, 37b formed in the small piece 4a located in the horizontal direction above the support 4 becomes a flow path for guiding the raw water passed between the electrolysis chambers C, C to the electrode plate 5. , 37c are flow paths for smoothly flowing the electrolytic product obtained by electrolysis upward.

Furthermore, the notches 44, 44, 44 formed in the upper small piece 4 a communicate with the outlet channel 19 formed in the bulging portion 17, and the outlet channel 19 further communicates with the outlet port 20. The electrolytic product generated in the electrolysis chamber C is collected in the outlet channel 19 and then led out from the outlet port 20.
The electrolytic cell 1 is opened only at the outlet 20 and is liquid-tightly sealed at other locations.

Next, another configuration of the electrolyzed water production apparatus A will be described.
As shown in FIG. 1, a tank 100 that stores diluted raw water is a container that stores diluted water W during the production of electrolytic water, and mixes and holds electrolytic products (for example, chlorine). The unit 100J is detachably installed. In the tank 100, a pump 104 for mixing and stirring the dilution water W and the electrolytic solution is installed. An introduction port 103 for introducing the electrolytic product through the pipe 101 is provided in the lower part of the installation unit 100J.
The tank 100 may be a resin bottle such as PET, and may be configured to be removed from the installation unit 100J and carried after the electrolyzed water is manufactured.

  One end of the pipe 101 is detachably connected to the inlet 103 of the tank 100 and the other end is fixed to the outlet 20 of the electrolytic cell 1. A hard resin tube or a resin flexible tube is used. It has been.

  The control unit 102 includes a constant current device 105, a timer / counter 106, and a display means 107 such as a lamp, and drives and stops the electrolytic cell 1. The constant current device 105 and the timer / counter 106 may be configured by combining and connecting separate members, but these functions may be integrated into a sequencer, a computer, or the like.

Next, the production | generation of the electrolyte solution by the electrolyzed water manufacturing apparatus A equipped with the said bipolar electrolytic cell 1 is demonstrated with reference to FIG.
First, as shown in FIG. 1, the tank 100 is filled with a predetermined amount of dilution water W and installed in the installation section 100J.
Then, the power is turned on, and a current (constant current) having a constant current value is supplied to the electrolytic cell 1 for a predetermined time, and the raw water (dilute hydrochloric acid) is electrolyzed. Since the raw material water is filled in the casing 2 in a predetermined amount in advance, the raw material water is electrolyzed in the electrolysis chamber C by energizing the electrode rods 28 and 28 each having the positive and negative electrodes. An electrolysis product in which gas and liquid are turbid in C or mainly gas is generated. The electrolytic product passes from the inside of the electrolytic chamber C through the flow paths 37a, 37b, and 37c (see FIG. 5) of the support 4 to the outlet 20 through the outlet passage 19. The electrolytic product then flows into the tank 100 via the inside of the pipe 101, and is mixed with the dilution water by the pump 104 installed in the tank 100 to form electrolytic water.

In the above operation, the casing 2 is filled with raw material water in advance, but the electrolysis chambers C and C communicate with each other through the notch 44 so that the raw material water can flow between the electrolysis chambers C and C. Therefore, before the electrolytic cell 1 is used, the liquid level in each electrolytic chamber C is uniform.
When the electrode rod 28 is energized and the electrolysis is started, the electrolysis conditions in each electrolysis chamber C are slightly different and the electrolysis speed is slightly different. As a result, the consumption rate of the raw water between the electrolysis chambers C is changed. It is conceivable that the liquid surface level of the raw material water is different.

However, in this electrolytic cell 1, as shown in FIGS. 2 and 3, the electrolysis chambers C communicate with each other at different heights by a plurality of cutouts 44 of small pieces 4 a located at the lower part and the side part of the support 4. Has been. Therefore, even if the liquid level in each electrolysis chamber C changes, the raw material water flows between the electrolysis chambers C, and the liquid level in each electrolysis chamber C is always easily kept uniform.
Therefore, also in this respect, the electrolysis conditions in each electrolytic chamber C are made uniform, and efficient electrolysis is performed.

  As described above, according to the electrolytic cell 1, as shown in FIG. 5, only by inserting the insertion groove 38 of the small piece 4 a relative to the edge 5 R of the electrode plate 5, one small piece 4 a can be obtained. The support 4 can be attached easily and reliably by surrounding the entire periphery of the edge of the electrode plate 5 while matching the thin portion 36A on one end side with the thin portion 36B on the other end side of the other small piece 4a. The effect that it can be obtained.

  Further, when the small piece 4a is inverted by a virtual line F1 orthogonal to the thin portions 36A and 36B and passing through the center in the thickness direction, the shape of the thin portion 36A and the shape of the thin portion 36B coincide with each other, and the insertion groove The positional relationship between 38 and the notch 44 is also substantially the same. Therefore, since the small piece 4a can be attached to the electrode plate 5 regardless of the orientation of the plate surface, an effect that the attachment to the electrode plate 5 becomes easier is obtained.

  In addition, since the notch 44 is formed at the edge opposite to the insertion groove 38 at a distance from the insertion groove 38, a flow such as an opening that allows the electrode plate 5 to communicate between the electrolytic chambers C and C is provided. There is no need to provide a road. Therefore, it is possible to prevent the edge of the electrode plate 5 from being exposed by forming an opening in the electrode plate 5, and to effectively suppress corrosion due to leakage current of the electrode plate 5. can get.

  Further, since the notch 44 is configured not to communicate with the hollow hole 3 and positioned on the outer edge side of the support 4, the edge 5 R of the electrode plate 5 is not exposed and the outer edge is cut. Since the liquid is omitted, the plate area of the support 4 facing the electrolysis chamber C can be made as small as possible, and the occupied area of the electrode plate 5 can be secured as much as possible. Therefore, the effect that the electrolysis efficiency of the electrolytic cell 1 can be improved is obtained.

  Moreover, since the small piece 4a of the same shape can be attached to the electrode plate 5 to form the support body 4, the cost of the mold for manufacturing the support body 4 can be suppressed, and the manufacturing cost of the small piece 4a or the support body 4 can be suppressed. The effect that it can do is acquired. In addition, since the small pieces 4a having the same shape are attached to the electrode plate 5 from four directions, the effect that the edge of the electrode plate 5 can be easily attached to the electrolytic cell 1 regardless of the direction of the top, bottom, left and right is obtained.

Further, since the engagement groove 16 is provided on the inner wall of the housing 2, the capacity of the one electrolysis chamber C can be easily set or changed according to the insertion position of the support 4 holding the electrode plate 5. The effect is obtained.
Further, the engaged wall portion 45 is formed thinner than the thickness of the support body 4, and the engaging groove 16 for engaging the engaged wall portion 45 is formed to the thickness of the engaged wall portion 45. It can be formed finely together. Therefore, the effect that it is easy to finely adjust the capacity of one electrolysis chamber C is obtained.

Instead of the notch 44 that allows the raw water or electrolytic product to flow between the electrolysis chambers C, C, a through hole (not shown) that penetrates in the thickness direction of the small piece 4a at a position spaced from the fitting groove 38. May be formed.
Moreover, although the support body 4 provided with the electrode plate 5 inserted and arranged in the housing | casing 2 is made into 3 sets, the number of sets of the electrode plate 5 and support body 4 to insert can be increased / decreased suitably. .

  Further, the housing 2 is configured to be openable and closable by fixing the top plate 6F with a fixture, but the wall portion that can be opened and closed may be any of the side plates 6B and 6D or the bottom plate 6E. When 6B and 6D can be freely opened and closed, the engagement grooves 16 may be provided on the inner wall surfaces of the bottom plate 6E and the top plate 6F.

In addition, a derivation flow path 19 is formed in the bulging portion 17, but the inner wall surface along the surface shape of the bulging portion 17 has a shape for collecting the electrolytic product and sending it to the derivation port 20. It may be formed in a spherical shape. In this case, the inner wall surface preferably extends over all the electrolysis chambers C.
By forming the inner wall surface of the bulging portion 17 in such a shape, the electrolytic product produced in each electrolysis chamber C can be efficiently collected above the bulging portion 17, and the collected electrolytic production The effect that an object can be sent out to the outlet 20 opened near the top surface 19t in the bulging portion 17 is obtained.

  Further, as shown in FIG. 7, the support 4 has a small piece 60 a that supports the edge 5 </ b> R extending in the short direction of the electrode plate 5 and the electrode plate 5 so that the rectangular electrode plate 5 can be supported. There may be provided two types of small pieces 60a and 60b with the small piece 60b supporting the edge 5R extending in the longitudinal direction. In this case, the small pieces 60a and 60b are formed in the same manner as the small piece 4a of the support 4 shown in the above embodiment except that the dimensions in the direction along the electrode plate 5 are different.

  Or the support body 4 may support the perimeter of the edge of the electrode plate not shown which consists of regular polygons other than a rectangle. In this case, the small piece (not shown) is formed in a straight line along one side of the electrode plate, and is formed thin at the corner of the electrode plate that intersects with another adjacent small piece. It is formed in the same manner as the small piece 4a of the support body 4 shown in the above-described embodiment except that it abuts in the direction.

Still further, as shown in FIG. 8, the support 4 has small pieces 62a and 62a formed by dividing the support 4 into four equal parts so that the peripheral edge of the circular electrode plate 5 can be supported.・ ・ It may consist of. In this case, the small piece 62a is formed in the same manner as the small piece 4a of the support 4 shown in the above embodiment except that the small piece 62a is formed in an arc shape along the edge 5R of the electrode plate 5.
In addition, the small piece 62a is not limited to what was divided into 4 if the support body 4 was equally formed.
Moreover, in the above-mentioned one embodiment and each modification, although the external shape of the support body 4 and the shape of the hollow hole 3 are substantially similar, the external shape of the support body 4 and the hollow hole are shown in this way. The shape of 3 does not need to match. For example, in the support body 4 having a rectangular outer shape as shown in FIG. 4, the hollow hole 3 is circular, and the circular electrode plate 5 as shown in FIG. 8 is supported in the circular hollow hole 3. It may be.

  Note that the inner hole (not shown) of the housing 2 that accommodates the support 4 according to the modifications of the support 4 described above is supported by fitting the engaged wall portion 45 of the support 4 according to these modifications. As long as it has, the groove | channel (not shown) formed according to the shape of the support body 4 should just be used.

  Furthermore, the small piece 4a constituting the support body 4 and the modified examples 60a, 60b, and 62a are not limited to those having the shape shown in the above embodiment. For example, the support body 4 shown in FIG. What divided | segmented by the virtual line F2, what divided | segmented the support body 4 shown in FIG. 7 by the virtual line F3, or what divided | segmented the support body 4 shown in FIG. 8 by the virtual line F4 may be used.

  In addition, although the said embodiment and its modification demonstrated and demonstrated the batch type electrolytic cell 1 filled with raw material water beforehand, the electrolytic cell 1 is a storage tank which supplies raw material water to the lower part of the housing | casing 2. A continuous electrolyzed water production apparatus for producing electrolyzed water while forming a supply port for connecting a pipe (not shown) to be connected to (not shown) and supplying raw water into the housing 2 continuously or intermittently It may be used for.

DESCRIPTION OF SYMBOLS 1 Bipolar type electrolytic cell 2 Case 4 Support body 4a Small piece 5 Electrode plate 5R End edge 16 Engagement groove 38 Insertion groove 44 Notch 36A, 36B Thin part (end part)
F1 Virtual line C Electrolytic chamber

Claims (4)

Inside the housing, a plurality of electrode plates are arranged with their plate surfaces in one direction and spaced apart from each other, and the raw water is electrolyzed in an electrolytic chamber formed between the electrode plates, Used in a bipolar electrolytic cell for generating an electrolytic product, in a support that covers and supports the entire circumference of the edge of the electrode plate,
The support is formed into a frame shape by combining a plurality of flat and long pieces.
Each of the small pieces is formed with a single insertion groove into which an end edge of the one electrode plate is inserted into an end face on one end side in the width direction of the small piece,
Wherein the plurality of small pieces in the longitudinal direction of the ends in the state of being fitted into the edge of the electrode plate in each of the fitting grooves abut,
One end portion of the small piece is cut out on one plate surface side of the small piece to be a thin portion, and the other plate surface side of the other end portion of the small piece is cut off to be a thin portion,
The one end and the other end are formed in a shape that coincides with each other when the plate surface is inverted with an imaginary line passing through the center in the thickness direction orthogonal to the direction between both ends. support, characterized in that there.   The other end of the small piece in the width direction is penetrated in the thickness direction, and the raw water is supplied from the one plate surface side to the other plate surface side or from the other plate surface side to the one plate surface. The support according to claim 1, wherein a cutout or a through hole is formed to flow to the side. A support according to claim 1 or 2 , and
An electrode plate supported by the support;
An electrolytic cell comprising: a housing in which engagement grooves for supporting a support body supporting the electrode plate at a plurality of intervals are formed on an inner wall surface. The electrolytic cell according to claim 3 ,
A control unit for controlling the operation of the electrolytic cell;
An electrolyzed water production apparatus comprising: a mixing unit that is connected to the electrolyzer and that mixes the electrolyzed product obtained in the electrolyzer with dilution water to form electrolyzed water.

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