JP3497357B2 - Electrolytic cell - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic cell capable of producing acidic water and alkaline water by electrolyzing electrolyzed water such as saline solution, and more specifically, to a constituent part. The present invention relates to an electrolytic cell devised so that various conditions such as electrolysis capacity and size can be achieved by generalizing the above.

[0002]

2. Description of the Related Art In a conventional electrolytic cell, for example, as shown in FIG. 8, the inside of an electrolytic cell 20 configured to be able to supply electrolyzed water such as salt water is provided with a diaphragm 21 made of an ion exchange resin to form a cathode chamber. 20A and anode chamber 20B are divided into two chambers on the left and right,
The cathode chamber 20A is provided with an electrode 23 serving as a cathode, and the anode chamber 2
An electrode 24 serving as an anode is provided at 0B, and a direct current 22 is supplied between these electrodes.

By electrolyzing water in the electrolytic cell 20, various cations contained in the electrolyzed water are collected in the cathode chamber 20A and various anions are collected in the anode chamber 20B. Thus, the acidic water is taken out from the water intake port 26 provided in the anode chamber 20B, and the alkaline water is taken out from the water intake port 25 provided in the cathode chamber 20A.

However, when electrolyzed water is used for household use and for commercial or industrial use, various conditions such as pH value and water withdrawal amount per unit time are required depending on the use of the electrolytic cell. Since there are various types, in the conventional electrolytic cell as shown in FIG. 8, it is necessary to manufacture various components such as the electrolytic cell itself, the electrodes and the power source according to the requirements each time. There has been a problem that a large amount of cost is required for various equipment such as molds and manufacturing equipment, which raises the manufacturing cost.

Therefore, as disclosed in, for example, Japanese Unexamined Patent Publication No. 6-339683, the generalization of the components makes it possible to combine the minimum necessary number of components, and if necessary, the electrolysis capacity (water intake amount) and An electrolyzed water generation device was conceived in which various conditions such as the size of the electrolytic cell can be changed.

[0006]

However, in the above-mentioned conventional electrolyzed water generator, when the general-purposed electrode plates having the same shape are stacked to form the anode chamber and the cathode chamber, the conventional electrolytic water generators are installed in the electrode plates. In order to connect the holes to each other to form a water flow path, various connecting members such as through packing and turn packing as shown in FIG. 7 of the above publication are appropriately selected and assembled according to the application of the connecting portion. Since it is necessary to attach it, the connecting work is complicated, and if the packing is selected incorrectly, the flow path of the anode chamber and the cathode chamber cannot be constructed properly, so it takes time and cost to assemble the electrolytic cell. there were.

Further, in the above-mentioned conventional electrolyzed water generator, the electrode is formed by using a titanium base material, and a platinum or iridium alloy is coated on the surface of the electrode in a thin film shape. Since various types of packing are attached to form a water flow path, the electrodes may be dissolved in water by electrolysis, and in particular, titanium coated with platinum, etc. If there is a flaw such as a pinhole on the surface of titanium, the titanium is exposed to the solution and the wear of the component is accelerated by the electrolytic action. As a result, there is a problem that the portion is greatly damaged and a hole is formed.

Therefore, the technical problem of the present invention is to use various packings, connecting tools, etc. in stacking general-purpose electrode plates of the same shape to form an anode chamber and a cathode chamber for electrolysis. Even if the flow paths of the anode chamber and the cathode chamber can be easily made with a small number of components, the dissolution of titanium and the leakage of water from the electrolytic cell can be prevented.

[0009]

[Means for Solving the Problems] Means taken in the present invention for solving the above technical problems are as follows.

An anode plate and a cathode plate, which are formed in the same shape, are mounted so as to overlap with each other with a diaphragm plate interposed therebetween, and an anode chamber is defined between the anode plate and the diaphragm plate, and a cathode chamber is defined between the cathode plate and the diaphragm plate. An electrolytic cell configured such that electrolytic water is sent to the anode chamber and the cathode chamber and electrolyzed to extract acidic water from the anode chamber and alkaline water from the cathode chamber.

(1) Four through holes for electrolyzed water are formed at four corner symmetrical positions of the electrode plates constituting both the above-mentioned anode plate and cathode plate, and one of these through holes is formed on one diagonal line. The upper and lower two through holes which are positioned are cylindrical through holes having a right-angled flow path in a direction perpendicular to the electrode plate, and the upper and lower two through holes located on the other diagonal line are formed in the electrode plate. A through hole formed in a cylindrical shape and a boss shape by forming a boss-shaped through hole having a bypass passage that flows in the direction along with the above-mentioned electrode plates by alternately stacking them upside down. Configure so that they can communicate with each other. (Claim 1)

(2) A boss-shaped through hole having a bypass passage that flows in a direction along the electrode plate forms a spline-shaped cutout groove around the boss. (Claim 2)

(3) The whole of the electrode plates constituting both the anode plate and the cathode plate is made of a plastic material, and a platinum layer is formed at least on the electrodes of the plastic electrode plate. . (Claim 3)

According to the means according to claim 1 described in the above (1), in the case where, for example, four electrode plates are assembled by alternately stacking them upside down with a diaphragm plate interposed therebetween. In the cylindrical and boss-shaped through holes provided at four symmetrical positions at the top and bottom, the cylindrical and boss-shaped through holes are connected so that their through holes are connected to each other. Electrolyzed water is made to flow along the electrode plate in the part, and electrolytic water is made to flow in the cylindrical through-hole at a right angle.Therefore, each anode chamber is formed by a diaphragm plate between the anode plate and the cathode plate. Each of them and each cathode chamber are communicated with each other through a cylindrical through hole, and at each boss through hole, electrolyzed water is poured along the electrode plate into each of the anode chamber and the cathode chamber for electrolysis. The general-purpose electrode plates are alternately stacked to connect the through holes to each other. Alone, an anode chamber between the cathode chamber together without using a connecting member such as a packing is it possible to provide a high-performance electrolytic cell is connected in communication.

According to the second aspect of the invention described in (2) above, the electrolyzed water sent from the spline-shaped notch groove formed in the boss-shaped through hole is partitioned by the diaphragm plate. It can be poured along the electrode plates into the interior of the chamber or cathode chamber for electrolysis.

According to the third aspect of the invention described in (3) above, the base material, that is, the electrode plate itself is not corroded during the electrolytic action, preventing water leakage and eluting the base material. It is possible to prevent.

As described above, the above (1)-
By solving the above-mentioned technical problem by the means of (3),
It is possible to solve the problems of the conventional technology.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of an electrolytic cell according to the present invention will be described with reference to the drawings. FIG. 1 (a) is a front view showing the structure of an electrode plate 1 constituting the electrolytic cell of the present invention. Figure,
2B shows a side view thereof, and FIG. 2A shows FIG. 1A.
Of (b), (c), and (d) are cross-sectional views taken along line X-X, line W-W, and line Z-Z, respectively. The electrode plate 1 integrally formed by integrally molding a plastic material such as polypropylene,
As shown in each of the above figures, the portion of the main body 1R forming the electrode is formed to be relatively thin, and thick ribs 1K are formed on the front and back sides of the periphery.
And a flange 1T for connecting a terminal from a power supply to the upper side of the main body 1R, which has at least the above-mentioned electrodes and which has at least the above-mentioned electrodes.
The 1Ra portion is configured to form a platinum layer.

1S ... Protrusions provided in large numbers on the thick rib 1K at intervals, 1Sa ... Protrusions 1S ...
Insertion holes for tightening bolts, which are drilled in 1 and 1Ta, are holes for connecting terminals provided in the flange 1T, and when the electrode plate 1 is used as an anode plate, a positive electrode terminal is connected and When it is used as a cathode plate, it has a structure in which a negative electrode terminal is connected.

Similarly, in FIGS. 1 and 2, 2, 3, 4,
Reference numeral 5 is a through-hole provided at symmetrical positions at the four corners of the electrode plate 1 for passing the electrolyzed water, and these four through-holes 2 to 5 are provided.
Of the two upper and lower through holes 3, which are located on one diagonal line
4 is a DC passage 3a, 4 in a direction perpendicular to the electrode plate 1.
a cylindrical through hole provided with a, and two upper and lower through holes 2 and 5 located on the other diagonal line are spline-shaped notch grooves 2a for flowing electrolyzed water in the direction along the electrode plate 1, It is formed as a boss-shaped through hole provided with 5a (a bypass passage).

FIG. 3A is a partial cross-sectional side view of the electrolytic cell according to the present invention constructed by mounting the above four electrode plates 1 ... )
Shows a partial cross-sectional plan view thereof, and a total of four stacked electrode plates 1 ... Show each insertion hole 1Sa as shown in each drawing.
It is integrally assembled by inserting the tightening bolts 6 into the nuts and tightening them with the nuts 7. In assembling the electrode plates 1, the electrode plates 1 As shown in FIG. 7, a diaphragm plate 13 having a rectangular shape entirely made of an ion exchange resin is interposed between the electrode plates 1 ... Chamber 1Hb ...
It is configured to partition into.

That is, of the four electrode plates 1 ... Assembled in a stack as shown in FIG. 3A, the flanges 1T are projected upward and the first and third electrode plates from the left are positive electrodes. When these are used as a cathode plate by connecting these to the anode plate and by connecting the negative electrodes to the second and fourth electrode plates from the left, which also project the flange 1T downward, , Each anode plate 1 ... and diaphragm plate 13 ...
The spaces between the cathode plates 1 ... and the diaphragm plates 13 ... Are respectively defined as the cathode chambers 1Hb.

Further, when the electrode plates 1 (anode plate and cathode plate) are mounted upside down alternately and alternately, as described above, the above-mentioned cylindrical through holes 3 and 4 and the boss-like through holes 3 and 4 are attached. Holes 2, 5
However, as shown in the sectional views shown in (b) of FIGS. 5 and 6,
Each of the through holes 3 ', 4'and 2', 5'has a fitting shape that can be joined so that the through holes 3 ', 4'and 2', 5'are connected to each other in a communicating state. It is built.

In FIG. 3, reference numerals 8 and 9 denote joint pipes for fitting and supplying electrolyzed water, which are fitted and connected to the lower cylindrical through hole 4 and the boss through hole 5 of the first electrode plate 1 which also serves as a casing. ,
10 and 11 are joint pipes for taking out acidic water, which are fitted and connected to the upper cylindrical through hole 4 of the fourth electrode plate 1 which also serves as a casing, and are also fitted and connected to the upper boss-like through hole 5 similarly. A joint pipe for taking out alkaline water is shown, and 12B, 12D and 12A, 12C in FIGS. 3 to 6 are boss-shaped through holes 2 and cylindrical through holes on the upper side of the first electrode plate 1. 3 and plugs that close the cylindrical through hole 3 and the boss-like through hole 2 on the lower side of the fourth electrode plate 1, respectively.

FIG. 4 is a front view of the electrolytic cell according to the present invention assembled as shown in FIG. 3, and FIG. 5 (A) is an ABC line in FIG.
6 is a cross-sectional view taken along the line D-E-F-G-H, in which (B) is an exploded cross-sectional view showing the M arrow section, and FIG. 6A is also an A-B line in FIG. 5B is a cross-sectional view taken along the line J-E-D-K-G-H, where (B) is an exploded cross-sectional view showing the N arrow portion, and (A) of FIG. The structure of the electrolysis chamber and its distribution path for obtaining
Shows the structure of an electrolysis chamber for obtaining alkaline water and its distribution route.

Further, in each of the above-mentioned drawings, 16 indicates a seal packing for attaching the diaphragm plate 13, and in FIG. 7, 13a indicates a boss-shaped through hole 2 formed at the four corners of the diaphragm plate 13. 5 and the fitting holes for inserting the cylindrical through holes 3 and 4 are shown.

Since the electrolytic cell according to the present invention has the structure as described above, as shown in FIGS. 3 to 6, a plurality of electrode plates 1 are stacked to assemble the electrolytic cell and project upward. A positive pole terminal is connected to the holes 1Ta and 1Ta of the flanges 1T and 1T, and the flanges 1T and 1T projecting downwardly.
Connect the negative pole terminal to the 1T holes 1Ta, 1Ta to energize, and connect the water supply hoses (not shown) to the water supply joint pipes 8 and 9 to supply water. The electrolyzed water supplied from the pipe 8 side is, as shown in FIG. 5A, each of the spline-shaped cutout grooves 2a ..., 5a ... Of the boss-shaped through holes 2 and 5, and the cylindrical through holes 3, 4. Each of the anode chambers 1Ha ...
The acidic water can be taken out from one of the joint pipes 10 for taking out by flowing in order as shown by an arrow and electrolyzed.

The electrolyzed water supplied from the other joint pipe 9 side through a water supply hose (not shown) follows the path of the arrow shown in FIG. 6 (a) to each cathode chamber 1Hb ...
The alkaline water can be taken out from the other joint pipe 11 side for taking out by flowing through the inside sequentially and electrolyzed.

In the drawing, the electrolytic cell is constructed by assembling a total of four electrode plates 1 ..., This is an example of the embodiment, and the use of the electrolytic cell and the removal per unit time are shown. Of course, it is possible to assemble the electrolytic cell with the specifications according to the requirements by setting the number of the assembled sheets arbitrarily according to the amount and the like.

[0030]

As described above, according to the electrolytic cell of the present invention, it is possible to provide the electrolytic cell having the specifications according to the requirements by assembling the required number of general-purpose electrode plates in an overlapping manner. However, in the present invention, in particular, in forming the flow path of the electrolytic water by stacking the electrode plates, the members and parts for forming the flow path such as various packings are not required, and The anode chamber, cathode chamber, and each flow path leading to these chambers can be formed by simply assembling them upside down and alternately. It is easy to assemble and economically effective, and it is highly reliable in combination with the fact that it is possible to reduce the cost, as well as preventing the dissolution of titanium and preventing water leakage from the electrolytic cell. An electrolytic cell can be provided.

[Brief description of drawings]

FIG. 1A is a front view of an electrode plate used in the present invention.
(B) is a side view thereof.

2A is a sectional view taken along line YY of FIG. 1A, FIG. 2B is a sectional view taken along line XX, and FIG. 2C is a sectional view taken along line WW. In the sectional view along, (d) is also Z-
It is sectional drawing which followed the Z line.

FIG. 3A is a partially sectional side view of the assembled electrolytic cell according to the present invention, and FIG. 3B is a partially sectional plan view thereof.

FIG. 4 is a front view of an electrolytic cell according to the present invention.

FIG. 5 (A) is A-B-C-D-E-F in FIG.
It is a sectional view taken along the line -GH, and (B) is an exploded sectional view showing an M view portion thereof.

FIG. 6A is ABJDEK in FIG.
It is a sectional view taken along the line -GH, and (B) is an exploded sectional view showing the portion viewed from the arrow N.

FIG. 7 is a partially cutaway front view of the diaphragm plate.

FIG. 8 is a configuration diagram illustrating a conventional electrolytic cell.

[Explanation of symbols]

1 electrode plate 1 Ha anode chamber 1Hb cathode chamber 2,5 Boss-shaped through hole 2a, 5a Spline-shaped notch groove 3,4 Cylindrical through hole 3a, 4a right-angled flow path 13 diaphragm plate

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) C02F 1/46

Claims (3)

(57) [Claims] 1. An anode plate and a cathode plate, which are formed in the same shape, are mounted so as to overlap with each other with a diaphragm plate interposed therebetween, an anode chamber is provided between the anode plate and the diaphragm plate, and a cathode chamber is provided between the cathode plate and the diaphragm plate. As an electrolytic cell configured so as to extract acidic water from the anode chamber and alkaline water from the cathode chamber by sending electrolyzed water to the anode chamber and the cathode chamber for electrolysis, And four through holes for electrolyzed water are formed at four corner symmetrical positions of the electrode plate that constitutes both the cathode plate and two through holes located on one diagonal line of these through holes, A tubular through hole having a right-angled flow path in a direction perpendicular to the electrode plate is formed, and upper and lower two through holes located on the other diagonal line are provided with detour passages flowing in a direction along the electrode plate. And the above electrode plate upside down. By attaching each other overlap, the electrolytic cell, characterized in that the connecting stub freely configure each through hole opening between formed in the cylindrical boss shape. 2. A boss-shaped through hole having a bypass passage that flows in a direction along the electrode plate is formed by forming a spline-shaped cutout groove around the boss. Electrolyzer. 3. An electrode plate constituting both an anode plate and a cathode plate is entirely made of a plastic material, and a platinum layer is formed on at least a portion of the plastic electrode plate where an electrode is formed. The electrolytic cell according to claim 1, which is characterized in that.