JPH08103771A - Water electrolyzing apparatus - Google Patents

Abstract

PURPOSE: To inexpensively mass-produce the apparatuses of the optimum capacity having electrolytic cells from small capacity to large capacity without almost altering planning by altering the laminating number of laminated frames constituting an electrolytic cell to make the opposed areas of electrode plates adjustable. CONSTITUTION: In a water electrolyzing apparatus, a case 3 is molded into a frame shape from plastic and equipped with a plurality of laminated frames 3A having a water channel provided therein and lid plates 3B closing both surfaces of the water channel in a watertight state and the lid plates 3B and the laminated frames 3A are connected in a freely detachable manner by an attaching jig 6. A plurality of the laminated frames 3A are mutually laminated in a watertight state through a packing 7 and a water channel is formed in the laminated one and an ion permeable diaphragm 2 is formed to an inside opening by insert molding. A water supply port and a discharge port 9 of ion water electrolyzed by an electrode plate 1 are opened so as to pierce the laminated frames 3A lamainated in a watertight state and the electrode plate 1 is arranged to the opening parts of the laminated frames 3A and held between the laminated frames 3A in a freely detachable manner to be arranged between diaphragms 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for flowing water between positive and negative electrode plates and energizing the water to electrolyze the water.

[0002]

2. Description of the Related Art Water can be separated into alkaline ionic water and acidic ionic water by electrolysis. Alkaline ionized water exhibits excellent solubilizing power and penetrating power, in addition to the swelling action that softens the product. In addition, alkaline ionized water obtained by electrolyzing tap water has a feature that the content of chlorine can be extremely reduced. Acidic ionized water has excellent properties for cleaning, sterilizing and bleaching. Utilizing these effects, alkaline ionized water is used for drinking water, water for water splitting, water for coffee and tea. Further, acidic ionized water is used as boiling water for noodles, boiling water for beans, washing water for fruits and vegetables, boiling water for eggs, cleaning water, and the like.

The alkaline ionized water and the acidic ionized water are obtained by electrolyzing water. When positive and negative electrode plates are provided to face each other in the water flow path, alkaline ionized water gathers near the negative electrode plate and acidic ionized water gathers near the positive electrode plate. The alkaline ionized water that collects on the negative electrode plate contains a positive electrolyte. The acidic ionized water that collects on the positive electrode plate contains a negative electrolyte. Water contains positive electrolytes such as calcium ions, sodium ions, magnesium ions, and potassium ions, and negative ions such as chlorine, sulfur, and silicic acid.

Further, the apparatus for electrolyzing water with the electrode plate may be a device for obtaining sterilized water by adding a small amount of an electrolytic substance such as sodium chloride to water and energizing the electrode plate. This device can electrolyze water in an electrolyzer to electrolyze strong acidic water and alkaline water so that the water has a sterilizing power. This apparatus can discharge acidic water and alkaline water separately, or can mix acidic water and alkaline water into water with strong sterilizing power.

The present inventor has developed an apparatus for electrolyzing water shown in the cross-sectional view of FIG. 1 (Japanese Patent Laid-Open No. 6-198282).
Issue). In the device shown in this figure, a diaphragm 2 is arranged between plus and minus electrode plates 1. The diaphragm 2 is a sheet material having ion permeability, and prevents alkaline electrolyzed water and acidic ionized water from being mixed with electrolyzed water. The diaphragm 2 is
A sheet material with minute voids that does not allow water to pass freely,
As shown in the perspective view of FIG. 2, a plastic molded into a frame shape is insert-molded and incorporated in a case.

In this device, water is introduced between the electrode plate 1 and the diaphragm 2 to apply a DC voltage to the plus and minus electrode plates. The inflowing water has a high positive ion concentration in the vicinity of the negative electrode plate 1 and becomes alkaline ionized water,
In the vicinity of the positive electrode plate 1, the concentration of negative ions becomes high and it becomes acidic ionized water. Thus, the device having the counter electrode plates can reduce the electric resistance between the electrode plates. This is because the facing area of the electrode plates 1 can be increased and the distance between the electrode plates can be shortened. The resistance between the electrode plates is
It becomes smaller by increasing the facing area of the electrode plate 1 and narrowing the electrode plate interval. Therefore, this electrode plate structure has a feature that water can be efficiently electrolyzed with a low-voltage direct current.

[0007]

Further, this electrode plate structure has a feature that the current value can be adjusted by adjusting the number of electrode plates. When the number of electrode plates is increased, the area of the electrode plates facing each other is increased and the current can be increased. When the current value is increased, water can be efficiently electrolyzed into alkaline ionized water and acidic ionized water even if the amount of flowing water per hour is increased.
Therefore, an apparatus having a large processing capacity can increase the number of laminated electrode plates, and an apparatus having a small processing capacity can reduce the number of laminated electrode plates to make the ion concentration of alkaline ionized water and acidic ionized water constant.

However, in the apparatus for electrolyzing water having the structure shown in FIG. 1, when the number of laminated electrode plates is increased, it is necessary to change the housing case. This is because the electrode part built in the case becomes thick. Therefore, when the current value is changed, it is necessary to specially manufacture the case, and there is a drawback that various current values cannot be inexpensively mass-produced.

The amount of water used in a device for electrolyzing water varies greatly depending on the application. For example, the flow rate used varies significantly between home and business use. Further, even if it is used for business purposes, the flow rate used varies depending on whether the alkaline ionized water for drinking is made or the acidic sterilized water is made. In addition, even when sterilizing water is used, the flow rate of use varies considerably between those used for agriculture and those used in restaurants. As described above, in the apparatus for electrolyzing water, the flow rate of which is significantly changed depending on the application, if the case is changed depending on the flow rate, the manufacturing cost becomes significantly high. Especially,
The case where a plastic molded product is used for the case has a drawback that when the case is changed, it is necessary to change an extremely expensive mold, which significantly increases the manufacturing cost.

The first object of the present invention was developed in order to eliminate this drawback, and electrolyzes water capable of mass-producing a device whose use flow rate fluctuates greatly easily and easily at low cost. There is a device to provide.

By the way, in the apparatus for electrolyzing water, it is necessary to take out the electrode plate as a waterproof structure. This is because power is supplied to the electrode plate from the outside. This structure can be realized by a structure in which the electrode plate is insert-molded in a plastic case. However, an electrode plate insert-molded in plastic has a drawback that an expensive electrode plate is wasted due to defective molding in the manufacturing process. In the case where the electrode plate is inserted into the plastic, the defect rate cannot be zero. Actually, a defect rate of several% occurs. Unfortunately, the electrode plates used in this type of device are extremely expensive metal plates. This is because it is required to have durability so that it does not wear when it is energized by water. By the way, the present inventor uses a titanium plate whose surface is coated with platinum as the electrode plate. For this reason, it is important to minimize the waste of the electrode plate. Furthermore, the electrode plate inserted in the plastic cannot be regenerated and reused many times. Foreign substances adhere to the surface of the electrode plate as it is used. When foreign matter adheres to the surface, the + and-of the electrode plates can be reversely connected for cleaning. However, no matter how you wash it, you cannot completely remove the foreign matter. Therefore, the surface of the electrode plate gradually becomes dirty after long-term use. Dirt on the surface of the electrode plate can be removed by firing the electrode plate. However, the electrode plate inserted in the plastic cannot be fired because the plastic melts when fired, and the electrode plate cannot be reused and reused many times. Therefore, in the case where the electrode plate is inserted into the plastic, both the manufacturing cost and the running cost increase.

The second object of the present invention is to develop water for which the running cost can be reduced by effectively reusing the electrode plate many times. It is to provide a device for electrolysis.

[0013]

The apparatus for electrolyzing water according to the present invention has the following constitution in order to achieve the above-mentioned object. The apparatus for electrolyzing water according to the present invention includes an electrolytic bath 4 and a power source 5 that supplies direct current to the electrode plates of the electrolytic bath 4. The electrolytic cell 4 is provided with a case 3 having a watertight structure, and an electrode plate 1 which is disposed inside the case 3 so as to face each other and which electrolyzes inflowing water to electrolyze the water into alkaline ionized water and acidic ionized water. ,
Diaphragm 2 for separating alkaline ionized water and acidic ionized water
With.

Further, the apparatus for electrolyzing water according to the present invention is characterized in that the electrolytic cell 4 has the following unique constitution. (A) The case 3 is provided with a laminated frame 3A formed of plastic into a frame shape and provided with water channels inside, and a lid plate 3B that watertightly closes both sides of the water channels of the laminated frame 3A. (B) The lid plates 3B are arranged on both sides of the laminated frame 3A, and the lid plate 3B and the laminated frame 3A are detachably connected by the attaching / detaching tool 6. (C) The plurality of stacking frames 3A are watertightly stacked on each other via the packing 7 to form a water channel inside. (D) In the laminated frame 3A, the ion-permeable diaphragm 2 is insert-molded in the inner opening. (E) A water supply port 8 and an outlet port 9 of ionized water electrolyzed by the electrolytic plate 1 are penetrated through the water-tight laminated frame 3A.
Is open. (F) The electrode plate 1 is located at the opening of the stacking frame 3A,
It is removably sandwiched between the laminated frames 3A and arranged between the diaphragms 2.

Further, in the apparatus for electrolyzing water according to the second aspect of the present invention, the electrode hole 11 which penetrates the laminated frame 3A and through which the electrode rod 10 connected to the electrode plate 1 is inserted is opened. .

[0016]

In the apparatus for electrolyzing water according to the present invention, the electrode area can be adjusted by adjusting the number of laminated layers 3A for sandwiching the electrode plate 1. The electrode area can be doubled by doubling the number of laminated layers of the laminated frame 3A. For this reason, the apparatus that doubles the number of stacked layers 3A can double the flow rate and make the ion concentrations of the discharged alkaline ionized water and acidic ionized water constant. This is because the diaphragm 2 is insert-molded in the laminated frame 3A, the electrode plate 1 is built in between the laminated frames 3A, and the case 3 is constituted by the laminated frame 3A that is watertightly laminated.

Furthermore, in the apparatus for electrolyzing water according to the present invention, the diaphragm 2 is insert-molded in the plastic laminate frame 3A which is laminated to form the watertight case 3.
The plastic laminated frame 3A can be used together with the holding frame for the diaphragm 2. Therefore, the member for holding the diaphragm 2 can be omitted, and the diaphragm 2 can be disposed in the case 3 in an ideal state to simplify the entire structure.

Furthermore, since the diaphragm 2 which is a thin sheet material is inserted into the laminated frame 3A, the laminated frame 3A can be connected in a laminated state as a completely watertight structure. Since the electrode plate 1 is not insert-molded into the laminated frame 3A but is sandwiched and arranged between the laminated frames 3A, even if the electrode plate 1 is slightly deformed, the laminated frame 3A is not directly distorted. Water leakage due to the deformation of the plate 1 can be effectively prevented.

Further, in the apparatus for electrolyzing water according to the present invention, the electrode plate 1 which is a metal plate is sandwiched between the laminated frames 3A so as to be watertightly contained therein. Therefore, the electrode plate 1 may be taken out and fired. It can remove foreign matter on the surface and reuse effectively many times. Therefore, it also has the feature of reducing the runnin cost.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. However, the examples shown below exemplify a device for electrolyzing water for embodying the technical idea of the present invention, the device for electrolyzing water of the present invention is a material, shape, The structure, layout, etc. are not specified as below. The water electrolysis apparatus of the present invention can be modified in various ways within the scope of the claims.

Further, in this specification, for easy understanding of the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims column", "action column", and "action column". It is added to the members shown in the section of "Means for Solving the Problems". However, the members shown in the claims are
It is by no means specific to the members of the examples.

The apparatus for electrolyzing water shown in FIG. 3 is one in which an electrolytic solution such as salt is added to water to separate it into alkaline ionic water and acidic ionic water. The electrolytic cell 4 and the electrodes of this electrolytic cell 4 are separated. The plate includes a power source 5 for applying a direct current to the plate, a supply tank 12 for supplying an electrolytic solution to the electrolytic bath 4, and a supply pump 13 for supplying the electrolytic solution in the supply tank 12 to the electrolytic bath 4.

The apparatus shown in this figure electrolyzes water mixed with an electrolytic solution such as salt. This device can produce water with strong germicidal power. However, the present invention does not specify the device for electrolyzing water as the device shown in this figure. It is also possible to add an electrolytic solution and mix electrolyzed water with alkaline ionic water and acidic ionic water for drainage. Mixed water of alkaline ionized water and acidic ionized water can be used as sterilizing water. Furthermore, the apparatus for electrolyzing water according to the present invention can electrolyze water without addition of an electrolytic solution into alkaline ionized water and acidic ionized water. Alkaline ionized water obtained by electrolyzing water to which no electrolytic solution is added is used for drinking, and acidic ionized water is used for water having excellent bactericidal activity.

A filter 1 is provided in the electrolytic cell 4 for electrolyzing water.
The clean water which passed 4 is supplied. An on-off valve (not shown) is connected to the inflow side of the electrolytic cell 4 in order to supply water to the electrolytic cell 4. A mixer 15 for mixing an electrolytic solution with water is connected between the on-off valve and the electrolytic cell 4.

The principle of the electrolytic cell 4 is shown in the sectional view of FIG. The electrolytic cell 4 shown in this figure is provided with a case 3 having a watertight structure, and an electrode that is disposed so as to face the inside of the case 3 and that energizes the inflowing water to electrolyze the water into alkaline ionic water and acidic ionic water. It comprises a plate 1 and a diaphragm 2 arranged between the electrode plates 1 for separating alkaline ionized water and acidic ionized water.

The case 3 comprises a plurality of laminated frames 3A and lid plates 3B laminated on both sides of the laminated frame 3A. The laminated frame 3A is formed of plastic into a frame shape and has a water channel inside. The lid plate 3B is made of plastic or metal, and watertightly closes both sides of the water channel provided inside the laminated frame 3A. The lid plates 3B are arranged on both sides of the laminated frame 3A, and the lid plate 3B and the laminated frame 3A are arranged.
And 6 are detachably connected by a set screw 6A as a detachment tool 6. The plurality of stacking frames 3A are watertightly stacked on each other via a packing 7 to form a water channel inside.

5 and 6 are a plan view and a bottom view of the laminated frame 3A to be laminated. A plan view, a bottom view and a sectional view of the cover plate 3B are shown in FIGS. 7, 8 and 9. The plurality of laminated frames 3A are
They are watertightly stacked on each other via the packing 7 to form a watertight water channel inside.

The laminated frame 3A is provided so as to be watertightly sandwiched by the cover plate 3B, and penetrates through the screw holes 16 into which the set screws 6A are inserted at regular intervals. Set screw 6A is laminated frame 3A
A detachable tool 6 for detachably connecting the cover plate 3B and the cover plate 3B. On both sides of the laminated frame 3A, an outer peripheral groove 17 is provided along the inner side of the screw hole 16 for disposing an O-ring that is the packing 7 at a fixed position. In the laminated frame 3A, electrode holes 11 for inserting the electrode rods 10 for connecting the electrode plates 1 are opened at both upper and lower center sides in FIGS. The portions where the electrode holes 11 are opened are projected on both sides to widen the width of the laminated frame 3A. Around the electrode hole 11, in order to prevent water from entering the electrode hole 11, an electrode groove 18 for mounting an O-ring that is the packing 7 is provided.

The laminated frame 3A, which is molded into a frame shape with hard plastic, has an inner opening at the time of molding.
The diaphragm 2 having ion permeability is insert-molded.
The diaphragm 2 is a plastic thin film that is permeable to ions but impermeable to water. The diaphragm 2 is insert-molded in the middle of the laminated frame 3A in the thickness direction.
The ion-permeable diaphragm 2 is a barrel that separates alkaline ionized water and acidic ionized water.

As shown in FIGS. 5 and 6, the laminated frame 3A in which the diaphragm 2 is inserted inside the opening has two supply ports 8 and two discharge ports 9 at the upper and lower ends. It is open. The two supply ports 8 are connected in parallel with each other to supply water to both sides of the diaphragm 2. The water supplied to both sides of the diaphragm 2 is either mixed with the electrolytic solution or not mixed with the electrolytic solution.

In the laminated frame 3A shown in FIG. 5, the upper right supply port 8 is connected to the upper surface of the diaphragm 2 through the communication groove 19, and the upper left supply port 8 is connected to the lower surface of the diaphragm 2 through the communication groove 19. Is in communication with. The stacking frame 3A is a recess formed on the surface of the stacking frame 3A and serves as a passage through which water can pass in the stacked state of the stacking frame 3A. The two supply ports 8 provided at the upper end of the stacking frame 3A are connected in parallel as shown in FIG.
Supply water on both sides.

In the stacking frame 3A shown in FIG. 5, the supply port 8 and the discharge port 9 on the right side of the drawing are connected to the communication groove 19 to form the diaphragm 2
Is connected to the upper surface of. The bottom surface of the stacking frame 3A communicates with the bottom surface of the diaphragm 2 through a supply port 8 and a discharge port 9 on the left side (the right side in the bottom view of FIG. 6 is reversed) in FIG. The supply port 8 and the discharge port 9 are not communicated with the communication groove 19, as shown in FIG.
In FIG. 6, the upper left supply port 8 and the lower right discharge port 9 (since FIG. 6 is a bottom view, the left and right are opposite,
On the lower surface of the stacking frame 3A, the upper right supply port 8 and the lower left discharge port 9
The inner peripheral groove 20 for guiding the O-ring that is the packing 7 is formed on the peripheral edge of

Further, the stacking frame 3A is provided with a fitting groove 21 of the electrode plate 1 at the inner peripheral edge of the opening for supplying the electrode plate 1 therebetween. The electrode plate 1 is, as shown in FIG.
It is sandwiched between A and between the laminated frame 3A and the cover plate 3B. The fitting groove 21 is designed to be half the thickness of the electrode plate 1 so that the electrode plate 1 is sandwiched and water does not leak from between the laminated frames 3A. Further, the electrode plate 1 is connected to one electrode rod 10 of the stacking frame 3A. Therefore, the fitting groove 21 of the electrode plate 1
Is provided so as to extend from the inner peripheral edge of the opening to one of the electrode holes 11. In the stacking frame 3A shown in FIGS. 5 and 6, the fitting groove 21 on the upper surface extends to the left electrode hole 11, and the left fitting groove 21 extends to the right electrode hole 11.

Further, the laminated frame 3A shown in FIGS. 5 and 6 is
Protrusions 22 for holding both surfaces of the diaphragm 2 are formed at constant intervals at the upper and lower ends of the opening. The protrusion 22 is on the surface of the electrode plate 1.
It is formed in the same plane as the bottom surface of the fitting groove 21 so that it can be sandwiched. In the laminated frame 3A of this shape, water smoothly flows in between the protrusions 22 between the electrode plates 1 sandwiched in the fitting grooves 21, and between the electrode plates 1 and the protrusions 22. Alkaline ionized water and acidic ionized water flow out after passing.

The cover plate 3B has the same outer shape as that of the stacking frame 3A, and is provided at the same position as that of the stacking frame 3A through a screw hole 16 through which a set screw 6A is inserted. Further, ribs 23 are formed on the outer surface of the cover plate 3B in a grid pattern so as not to be deformed by internal pressure. On the inner surface of the cover plate 3B,
An outer peripheral groove 17 that guides the O-ring that is the packing 7 is provided at the same position as the laminated frame 3A. Furthermore, the cover plate 3B is
The electrode hole 11, the supply port 8 and the discharge port 9 are opened at the same position as the stacking frame 3A. On the periphery of the electrode hole 11, an electrode groove 18 for guiding an O-ring which is the packing 7 arranged in the electrode groove 18 of the stacking frame 3A is provided. Further, an inner peripheral groove 20 is formed on the periphery of the supply port 8 and the discharge port 9 to guide the O-ring that is the packing 7. Further, as shown in FIG. 8, the cover plate 3B is provided with a fitting groove 21 for fitting the electrode plate 1 on the inner surface thereof. The fitting groove 21 is provided so as to extend to the peripheral edge of the one electrode hole 11. The lid plates 3B sandwiching both sides of the laminated frame 3A can have the same shape.

10 to 14 show a state in which the laminated frame 3A shown in FIGS. 5 and 6 and the lid plate 3B shown in FIGS. 7 to 9 are laminated. FIG. 10 is a vertical cross-sectional view of the discharge port 9 portion for discharging alkaline ionized water, and FIG. 11 is a vertical cross-sectional view of the discharge port 9 portion for discharging acidic ionized water. FIG. 12 is a cross-sectional view of a discharge port 9 portion for discharging alkaline ionized water and acidic ionized water,
13 is a cross-sectional view of the supply port 8 portion, and FIG. 14 is a cross-sectional view of the center of the electrode plate 1, that is, the electrode rod 10 portion.

In the electrolytic cell 4 shown in the above cross-sectional view, the laminated frames 3A having the same shape are laminated, the diaphragm 2 is disposed between the electrode plates 1, and the alkaline ion channels and the acidic ions formed on both sides of the diaphragm 2 are formed. The waterways are connected in parallel. In the cross-sectional view of FIG. 12, the stacking frame 3A stacked in each layer has the left and right connected to the outlet 9 of the alkaline ionized water and the outlet 9 of the acidic ionized water. That is, in the stacking frames 3A in the first and third stages from the bottom in FIG. 12, the discharge port 9 on the upper right side is connected to the alkaline ion water channel and the discharge port 9 on the lower left side is connected to the acidic ion water channel. On the other hand, in the second and fourth stacking frames 3A from the bottom, the upper left outlet 9 is connected to the alkaline ion water channel, and the lower right outlet 9 is connected to the acidic ion water channel.

The stacking frame 3A shown in FIG. 5 and FIG. 6 has the same structure as the diaphragm 2 when these layers are stacked upside down.
The positions of the communication grooves 19 that communicate with the upper and lower sides of the left and right are reversed.
In the stacking frame 3A shown in FIG. 5, the right supply port 8 and the discharge port 9 are communicated with the upper surface of the diaphragm 2 through the communication groove 19, and the left supply port 8 and the discharge port 9 are communicated with the lower surface of the diaphragm 2 through the communication groove 19. However, if it is turned upside down, the left supply port 8 and the left discharge port 9 will be connected to the communication groove 19
The right supply port 8 and the right discharge port 9 communicate with the upper surface of the diaphragm 2 by the communication groove 1
9 is connected to the lower surface of the diaphragm 2.

As shown in FIG. 12, the stacking frame 3A shown in FIGS. 5 and 6 is stacked such that the left and right supply ports 8 and discharge ports 9 are reversed in the upper and lower stages. FIG. 12 shows the electrolytic cell 4 as shown in FIG.
It is sectional drawing cut | disconnected at the position of the AA line of the laminated frame 3A shown in FIG.

A laminated frame 3A in which the electrode plates 1 are sandwiched and laminated.
, -Use both sides of the electrode plate 1 as alkaline ion channels, +
Both sides of the electrode plate 1 are acid ion channels. The space between the + and-electrode plates 1 is separated into an alkaline ion channel and an acidic ion channel by a diaphragm 2 integrally formed with the laminated frame 3A. Water flowing on both sides of the electrode plate 1 is discharged from the alkaline ionized water outlet 9 as shown in FIG. 10, and water flowing on both sides of the electrode plate 1 is acidic ionized water as shown in FIG. It is discharged from the discharge port 9. On both sides of the +/- electrode plate 1,
As shown in FIG. 13, the supply ports 8 connected in parallel with each other.
Is supplied with water.

Between the laminated frames 3A, and between the laminated frames 3A and the cover plate 3B.
The electrode plate 1 sandwiched between and is a titanium plate 2 whose surface is coated with platinum. This electrode plate can be reused many times by firing to remove foreign matters adhering to the surface. However, it is preferable to recoat the surface with platinum after firing. The electrode plate 1 is, as shown in FIG.
While being cut to the outer shape to be fitted into the fitting groove 21,
A connection terminal connected to the electrode rod 10 is projected on one side portion. The electrode plate 1 is sandwiched so that the connection terminals 1A are vertically and horizontally projected. In the electrolytic cell 4 of FIG. 14, the first, third, and fifth electrode plates 1 from the bottom are the connection terminals 1.
A is projected rightward and connected in parallel with each other, and the second and fourth electrode plates 1 from the bottom are connected in parallel with the connection terminal 1A projected leftward. A metal cylinder 24 into which the electrode rod 10 is inserted is arranged between the electrode plates 1 connected in parallel with each other. The electrode plates 1 sandwiched between the electrode plates 1 sandwich the metal tube 24 and are connected in parallel. 14
, The electrode plates 1 of the first, third, and fifth stages from the bottom are on the + side of the power source 5 via the electrode rods 10, and the electrode plates 1 of the second and fourth stages are on the − side of the power source 5 via the power source rods 5. Connected to the side.

A diaphragm 2 is arranged between the electrode plates 1 facing each other. The diaphragm 2 is a flexible thin sheet material. In order to accurately arrange the diaphragm 2 which is a thin sheet material between the electrode plates 1 facing each other, the insulating mesh 25 shown in FIG. 16 is arranged between the electrode plate 1 and the diaphragm 2. The insulating mesh 25 is a mesh of plastic wire rods that allow water to freely pass therethrough. The insulating mesh 25 is formed to be approximately equal to or slightly thinner than the gap between the electrode plate 1 and the diaphragm 2 so that the diaphragm 2 can be accurately arranged in the center between the electrode plates 1. The insulating plate is formed into an outer shape that can be arranged inside the opening of the stacking frame 3A, and is arranged between the electrode plate 1 and the diaphragm 2 as shown by the alternate long and short dash line in FIG.

In the laminated frame 3A having the above structure, the insulating net 25 and the electrode plate 1 are arranged on both sides of the diaphragm 2, and a plurality of these are laminated and the upper and lower surfaces are closed by the lid plates 3B to form an electrolytic cell. Set to 4.
The electrolytic cell 4 shown in the figure has four laminated frames 3A laminated. When the number of stacked layers of the stacking frame 3A is set to 4, five electrode plates 1 are stacked, and the facing area of the positive and negative electrode plates 1 is 1
It is four times as large as the one electrode plate 1. Although not shown, the laminated frame 3A
When the number of laminated sheets of 6 is 6, the facing area of the positive and negative electrode plates 1 is 6 times that of the single electrode plate 1. The facing area of the positive and negative electrode plates 1 increases in proportion to the number of laminated layers 3A.
Therefore, the electrolytic cell 4 having a large processing capacity per hour is
The number of laminated frames 3A is increased. When the number of laminated layers of the laminated frame 3A is doubled, the processing capacity of the electrolytic cell 4 per unit time is doubled. This is because the facing area of the positive and negative electrode plates 1 for electrolyzing water is doubled. However, when the facing area of the positive and negative electrode plates 1 increases, the current supplied from the power source 5 to the electrode plate 1 also increases. This is because even if the current flowing through one electrode plate 1 is the same, if the number of electrode plates 1 increases, the total value of the current flowing through all electrode plates 1 increases.
Therefore, when the number of stacked layers of the stacking frame 3A is increased and the processing capacity per unit time is increased, the capacity of the power supply 5 is also designed to be large.

In the electrolytic cell 4 shown in the figure, the facing area of the electrode plate 1 can be adjusted by adjusting the number of laminated layers 3A. What changes when the number of laminated frames 3A is changed is the set screw 6A.
And the entire length of the electrode rod 10. If the number of laminated layers of the laminated frame 3A is increased, the electrolytic cell 4 becomes thicker.
The set screw 6A for penetrating and fixing A and the cover plate 3B and the electrode rod 10 are lengthened. When the number of laminated frames 3A is small, the electrolytic cell 4 becomes thin, so that short setscrews 6A and electrode rods 10 can be used. However, the long set screw 6A and the electrode rod 10 can also be used for the thin electrolytic cell 4. For this reason, if long setscrews 6A and electrode rods 10 are used, even if the number of laminated frames of the laminated frame 3A is changed,
Can be used as is.

Further, in the electrolytic cell 4 shown in the figure, two supply ports 8 and two discharge ports 9 are opened in both the upper and lower cover plates 3B, but either of the supply port 8 and the discharge port 9 is opened. It is also possible to open only one cover plate 3B.

[0046]

The apparatus for electrolyzing water according to the present invention has an extremely excellent feature that a device whose usage flow rate largely changes can be mass-produced easily and easily at low cost. This is because the apparatus for electrolyzing water according to the present invention can adjust the facing area of the electrode plates by changing the number of layers of the laminated frames that constitute the electrolytic cell. In particular, even if the number of stacked layers of the stacking frame is changed, it is not necessary to change other components constituting the electrolytic cell almost or at all. This is because the laminated frame constitutes a part of the case, the diaphragm is integrally formed on the laminated frame, and the electrode plate is supplied between the laminated frames to laminate the case, whereby an electrolytic cell having a watertight structure can be constructed. By increasing the number of laminated frames, the processing capacity of the electrolytic cell per unit time can be increased, and conversely, by decreasing the number of laminated frames, an electrolytic cell having a small processing capacity can be obtained. Therefore, the apparatus for electrolyzing water of the present invention has a feature that it can be designed to have an optimal capacity for an application and to be mass-produced at a low cost, with almost no design change, from a small capacity to an extremely large electrolytic cell. There is.

Furthermore, in the apparatus for electrolyzing water according to the present invention, a diaphragm is integrally formed on a laminated frame forming a part of the case, and an electrode plate is sandwiched between the laminated frames to form an electrolytic cell. The electrolytic cell having this structure can incorporate the electrode plates in a laminated state by limiting water leakage caused by the deformation of the electrode plates. that is,
This is because the electrode plate is arranged in the opening of the stacking frame.
The electrode plate arranged in the opening of the stacking frame does not hinder the watertight structure of the electrolytic cell even if the electrode plate is deformed. The electrolytic cell is
The laminated frame is laminated in a watertight structure to be watertightly closed.

Although the electrode plate can be integrally molded with the laminated frame, if the electrode plate is integrally molded with the laminated frame, if a defective product is generated during insert molding of the electrode plate, an expensive electrode plate cannot be effectively used. . Further, if foreign matter adheres to the surface of the electrode plate, it cannot be completely removed. Foreign substances adhering to the surface of the electrode plate can be removed by baking the electrode plate, but the electrode plate insert-molded in plastic cannot be baked. This is because when fired, the plastic is deformed by heat and cannot be used. Therefore, the electrode plate inserted into the plastic cannot be regenerated because foreign substances adhere to the surface of the electrode plate to increase the electric resistance of the surface, and it is necessary to replace the electrode plate with a new one.

On the other hand, in the device of the present invention, since the electrode plates are sandwiched by the laminated frames, it is not necessary to insert the electrode plates into the plastic. Therefore, if foreign matter adheres to the surface and becomes dirty, it can be burned and regenerated many times for effective use.
Further, the electrode plate incorporated in the device of the present invention can be manufactured by cutting a metal plate into a predetermined shape. This has the advantages of reducing the manufacturing cost of the electrode plate, extending the life of the expensive electrode plate, and significantly reducing the running cost. In particular, in a commercial device having a large number of laminated frames, the operating time is extremely long, so it is important to make the electrode plate inexpensive and reduce the running cost. Since the device of the present invention can reduce the cost of the electrode plates when the number of the laminated frames is increased and the number of used electrode plates is large, the running cost can be reduced economically even for commercial use. There are features that can be used.

Furthermore, the device in which the electrode plate is inserted is
When the electrode plate is deformed, the laminated frame is also deformed, which causes water leakage. However, in the apparatus for electrolyzing water according to the present invention, the diaphragm, which is a thin sheet material, is integrally formed with the laminated frame, and the electrode plate is arranged in the opening of the laminated frame. Since the diaphragm is a thin sheet material, it does not deform and distort the laminated frame.
The distortion-free stacking frame can be stacked to prevent water leakage.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a conventional apparatus for electrolyzing water.

FIG. 2 is a perspective view of a diaphragm used in the device shown in FIG.

FIG. 3 is a schematic perspective view of an apparatus for electrolyzing water according to an embodiment of the present invention.

4 is a cross-sectional view showing the operating principle of the electrolytic cell of the apparatus for electrolyzing water shown in FIG.

5 is a plan view of a laminated frame used in the electrolytic cell shown in FIG.

6 is a bottom view of a stacking frame used in the electrolytic cell shown in FIG.

FIG. 7 is a plan view of a cover plate used in the electrolytic cell shown in FIG.

FIG. 8 is a bottom view of a lid plate used in the electrolytic cell shown in FIG.

9 is a sectional view of a cover plate used in the electrolytic cell shown in FIG.

10 is a vertical cross-sectional view of a portion of the electrolytic cell shown in FIG. 3 for discharging alkaline ionized water.

11 is a vertical cross-sectional view of a portion of the electrolytic cell shown in FIG. 3 for discharging acidic ionized water.

FIG. 12 is a cross-sectional view of a discharge port portion for discharging alkaline ionized water and acidic ionized water in the electrolytic cell shown in FIG.

13 is a cross-sectional view of the supply port portion of the electrolytic cell shown in FIG.

14 is a cross-sectional view of the electrode rod portion of the electrolytic cell shown in FIG.

FIG. 15 is a plan view of electrode plates sandwiched between the laminated frames shown in FIGS. 5 and 6;

FIG. 16 is a plan view of an insulating mesh disposed between the electrode plate and the diaphragm of the laminated frame shown in FIGS. 5 and 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electrode plate 1A ... Connection terminal 2 ... Diaphragm 3 ... Case 3A ... Laminated frame 3B ... Lid plate 4 ... Electrolyzer 5 ... Power supply 6 ... Detachment tool 6A ... Set screw 7 ... Packing 8 ... Supply port 9 ... Discharge port 10 ... Electrode rod 11 ... Electrode hole 12 ... Supply tank 13 ... Supply pump 14 ... Filter 15 ... Mixer 16 ... Screw hole 17 ... Outer peripheral groove 18 ... Electrode groove 19 ... Communication groove 20 ... Inner peripheral groove 21 ... Fitting groove 22 ... Projection 23 ... Rib 24 ... Metal cylinder 25 ... Insulation net

Claims (2)

[Claims] 1. An electrolytic cell (4) and an electrode plate for the electrolytic cell (4)
It is equipped with a power supply (5) for supplying direct current to (1), and the electrolytic cell (4) is
A case (3) having a watertight structure, an electrode plate (1) which is disposed so as to face each other in the case and which energizes the inflowing water to electrolyze the water into alkaline ionic water and acidic ionic water, and an alkaline An apparatus for electrolyzing water, comprising a diaphragm (2) for separating ionized water and acidic ionized water, and an electrolytic cell (4) having all the following configurations. (A) The case is made of plastic and is formed into a frame shape. A plurality of laminated frames (3A) are provided with water channels inside.
And a lid plate that watertightly closes both sides of the water channel of this laminated frame (3A)
(3B). (B) The lid plates (3
B) is arranged, and the lid plate (3B) and the laminated frame (3A) are detachably connected by a detachable tool (6). (C) The plurality of stacking frames (3A) are watertightly stacked on each other via the packing (7) to form a water channel inside. (D) The laminated frame (3A) is insert-molded with an ion-permeable diaphragm (2) in the inner opening. (E) A water supply port (8) that penetrates the water-tight laminated frame (3A) and an outlet for ionized water electrolyzed by the electrode plate (1)
(9) and are opened. (F) The electrode plate (1) is disposed in the opening of the laminating frame (3A), is detachably sandwiched between the laminating frames (3A), and is disposed between the diaphragms (2). There is. 2. An electrolytic cell (4) and an electrode plate for the electrolytic cell (4)
It is equipped with a power supply (5) for supplying direct current to (1), and the electrolytic cell (4) is
A case of a watertight structure, disposed opposite to each other in this case, an electrode plate (1) for energizing inflowing water to electrolyze the water into alkaline ionized water and acidic ionized water, and alkaline ionized water With a diaphragm (2) for separating acidic ionized water,
A device for electrolyzing water, characterized in that the electrolytic cell (4) has all the following configurations. (A) The case is made of plastic and is formed into a frame shape. A plurality of laminated frames (3A) are provided with water channels inside.
And a lid plate that watertightly closes both sides of the water channel of this laminated frame (3A)
(3B). (B) The lid plates (3
B) is arranged, and the lid plate (3B) and the laminated frame (3A) are detachably connected by a detachable tool (6). (C) The plurality of stacking frames (3A) are watertightly stacked on each other via the packing (7) to form a water channel inside. (D) The laminated frame (3A) is insert-molded with an ion-permeable diaphragm (2) in the inner opening. (E) A water supply port (8) that penetrates the water-tight laminated frame (3A) and an outlet for ionized water electrolyzed by the electrode plate (1)
(9) and are opened. (F) The stacking frame (3A) has an electrode hole (11) penetrating therethrough for inserting the electrode rod (10) connected to the electrode plate (1). (G) The electrode plate (1) is disposed in the opening of the laminating frame (3A), is detachably sandwiched between the laminating frames (3A), and is disposed between the diaphragms (2). There is.