JPS6321574Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a membraneless electrolyzer, and particularly to a horizontal parallel plate bipolar electrolyzer.

[Prior Art] Generally, in non-diaphragm electrolysis for producing sodium hypochlorite by electrolyzing saline water or seawater, monopolar and bipolar electrolysis methods have been put into practical use.

Incidentally, the monopolar type is widely used industrially because of its simple structure and few problems, but it is not as good as the bipolar type as a large-capacity electrolyzer. This is because the single-pole type requires a low voltage and high current device, requiring a large amount of money to manufacture the rectifying electrical part, and also incurring a large amount of power loss in the rectifying part during actual electrolysis. . On the other hand, the biggest problem with the bipolar type is leakage current, and removal of cathode deposits is also an important problem in practical use. In other words, as shown in Fig. 1, in the case of a bipolar type in which a voltage is applied between a plurality of electrodes 1 arranged in parallel at a required interval to electrolyze saline or seawater flowing in the direction of arrow a, as shown in Fig. A leakage current indicated by the symbol i occurs inside the electrode, and this leakage current i causes a decrease in electrolytic efficiency and damage to the electrode. Also,
Magnesium hydroxide, which is produced as a by-product at the cathode when salt water or seawater is electrolyzed, adheres to the cathode and blocks the electrolytic cell, causing an accident. And in the case of a bipolar type, effective removal is generally more difficult than in a unipolar type.

Conventionally, it has been proposed to connect a plurality of unipolar electrolytic cells 2 in series via electrically insulating pipes 3, as shown in FIG. In this type of electrolyzer, the leakage current flows through a long fluid path (i.e., pipe 3), so it can be reduced to a practically negligible value. Since sufficient electrolytic efficiency can be obtained even when the water is flowed at a high flow rate, the cathode products can be effectively removed by increasing the flow rate.

[Problems that the invention aims to solve] However, since it requires a large number of electrolytic cells and pipes to connect them, the device configuration is large and
This is complicated, and the energizing part for the electrodes must be fabricated for each electrolytic cell, which increases manufacturing costs and requires a large installation area. In addition, polyvinyl chloride is normally used as the material for the pipes that connect each electrolytic cell, but there are restrictions on its use on ships etc. for safety reasons, and its use as a marine biofouling prevention device is restricted. .

As described above, although bipolar electrolyzers are preferable from the viewpoint of energy saving, the actual situation is that their practical application is considerably limited due to the above-mentioned problems.

This idea was created in view of the current situation,
The object is to provide a diaphragmless horizontal parallel plate bipolar electrolyzer which has a simple structure and is free from leakage current and cathode deposits.

[Means for Solving the Problems] The present invention has an upper anode electrode plate 20, 120, 228 and a lower anode electrode plate 20, 120, 228 which are arranged horizontally and are electrically short-circuited. central unit electrodes 17, 117, to which electrolytic current is supplied;
217; the central unit electrode 17, 117, 217 has an upper anode electrode plate 20, 120, 220 and a lower cathode electrode plate 21, 121, 221 arranged horizontally and electrically short-circuited; A plurality of upper unit electrodes 18a, 118a,
218a; having an upper cathode electrode plate 21, 121, 220 and a lower anode electrode plate 20, 120, 221 arranged horizontally and electrically short-circuited, the central unit electrode 17, 117, 217; A plurality of lower unit electrodes 18b, 118 sequentially arranged below the
b, 218b; and the central unit electrode 17,1
17, 217 upper anode electrode plate 20, 120,
228 and the upper unit electrodes 18a and 118 directly above it
a, 218a cathode electrode plate 21, 121, 221
between the anode electrode plates 20, 120, 228 on the lower side of the central unit electrodes 17, 117, 217 and the cathode electrode plates 21, 121, 220 of the lower unit electrodes 18b, 118b, 218b immediately below them. The anode electrode plates 20, 120, 220 of the upper unit electrodes 18a, 118a, 218a and the cathode electrode plate 2 of the upper unit electrodes 18a, 118a, 218a directly above them.
1, 121, 221, and the anode electrode plate 20, 120, 221 of the predetermined lower unit electrode 18b, 118b, 218b and the cathode electrode plate 21 of the lower unit electrode 18b, 118b, 218b directly below it,
Electrolytic channels EL for electrolyzing electrolyzed water are formed between the unit electrodes 121 and 220, respectively, and these electrolytic channels EL are connected to the respective unit electrodes 17, 18a, and 1.
8b, 117, 118a, 118b, 217, 2
18a, 218b or upper and lower unit electrodes 17,
18a, 18b, 117, 118a, 118b,
217, 218a, and 218b are connected in series by a long electrically insulating connecting flow path F formed between them.

[Function] In the non-diaphragm type horizontal parallel plate bipolar electrolyzer according to the present invention, the central unit electrodes 17, 117, 2
17. Upper unit electrode 18a, 118a, 218
a, and lower unit electrodes 18b, 118b, 21
8b are stacked one above the other in a predetermined arrangement, each electrolytic flow path EL is connected in series by a long connection flow path F having electrical insulation properties. Therefore, an ideal electrolytic device with a simple structure and no leakage current or cathode deposits can be obtained.

[Embodiment] The present invention will be described below based on a first embodiment shown in FIGS. 3 to 7.

In FIGS. 3 and 4, 11 is an electrolytic cell made of a conductive material such as iron.
An electrolyzed water outlet 12, an electrolyzed water inlet 13, and a cathode terminal 14 are provided on the top wall 11a and bottom wall 11b of 1, respectively. Further, one side of the circumferential surface of the electrolytic cell 11 is opened, and this opening is watertightly closed by a lid 15. The side wall 11c of the electrolytic cell 11 and the inner surface of the lid 15 are covered with an insulating plate 16 made of polyvinyl chloride or the like, as shown in FIG.

In the electrolytic cell 11 configured in this way, a central unit electrode 17 is arranged horizontally at the center in the vertical direction, and above this central unit electrode 17,
For example, the four unit electrodes 18 are the upper unit electrodes 18a.
Below the central unit electrode 17, for example, four unit electrodes 18 are sequentially arranged horizontally as lower unit electrodes 18b. That is, the unit electrode 18 can be turned upside down by simply turning it upside down as described later.
a and the lower unit electrode 18b.

As shown in FIGS. 5 and 6, the unit electrode 18 includes a tank body 19, an anode electrode plate 20, and a cathode electrode plate 2.
1, a partition plate 22, etc. The tank body 19 is formed of an electrically insulating material such as polyvinyl chloride into a rectangular cylindrical shape with vertical openings. , two electrode holding plates 23 and 24 are extended from the upper and lower ends of the tank body 19 to slightly inside positions at a required interval in the vertical direction, and from the other side, the center of the electrode holding plates 23 and 24 in the vertical direction A partition plate 22 is extended at the position. These electrode holding plates 23, 24 and the partition plate 22 are made of the same material as the tank body 19, and three sides except the tip are bonded to the inner surface of the tank body 19 with adhesive or the like. , a required gap G is formed between each tip and the inner surface of the tank body 19. In the tank body 19, a curved connection flow path F connecting each of the gaps G is formed. Further, on the outer surface side of each electrode holding plate 23, 24, a fifth
As shown in the figure and FIG. 6, an anode electrode plate 20 formed of a platinum-plated titanium plate and a cathode electrode plate 21 formed of a stainless steel plate are arranged, and each electrode plate 20, 21 is made of plastic. It is fixed to the electrode holding plates 23 and 24 with screws 25 made by the manufacturer. The base ends (right end in FIG. 5) of the electrode holding plates 23 and 24 have upper and lower ends penetrating through the electrode holding plates 23 and 24, respectively.
Electrode short-circuiting pieces 26 made of artificial graphite are arranged, each of which contacts the
It is connected to the anode electrode plate 20 by screws 27 made of plastic, and to the cathode electrode plate 21 by screws 28 made of stainless steel.

On the other hand, as shown in FIG. 7, the central unit electrode 17 includes a tank body 19 having the same configuration as the unit electrode 18, a partition plate 22, electrode holding plates 23, 24, and an electrode shorting piece 26, and holds both electrodes. Boards 23, 24
Unlike the unit electrodes 18, two anode electrode plates 20 are fixed to the outer surface of the tank body 19, and as shown in FIGS. 3 and 7, the base end thereof is connected to an electrode shorting piece 26. An anode connecting rod 29 which is electrically connected and whose tip penetrates the side wall 11c of the electrolytic cell 11 can be attached thereto. The portion of the anode connecting rod 29 penetrating the side wall 11c is sealed with an adhesive 30 as shown in FIG.

As shown in FIG. 3, within the electrolytic cell 11, a central unit electrode 17 is arranged at the center in the vertical direction, and below it is a unit electrode 18 with the anode electrode plate 20 facing downward. (i.e., lower unit electrodes 18b) are arranged alternately on the left and right, and above the central unit electrode 17, unit electrodes 18 (i.e., upper unit electrodes 18a) with the anode electrode plate 20 facing upward are arranged on the left and right alternately. has been done. The upper unit electrode 18a at the upper end is fixed in position by appropriate means so as not to be lifted up by the electrolyzed water flow.

In addition, the anode electrode plate 2 above the central unit electrode 17
0 and the cathode electrode plate 21 of the upper unit electrode 18a directly above it, between the anode electrode plate 20 on the lower side of the central unit electrode 17 and the cathode electrode plate 21 of the lower unit electrode 18b immediately below it, Between the anode electrode plate 20 of the unit electrode 18a and the cathode electrode plate 21 of the upper unit electrode 18a directly above it, and between the anode electrode plate 20 of a predetermined lower unit electrode 18b and the cathode electrode plate 21 of the lower unit electrode 18b immediately below it. Electrolytic channels EL for electrolyzing electrolyzed water are formed between the electrodes (see Fig. 3), and these electrifying channels EL are formed in each of the unit electrodes 17, 18, 18a, 18b. They are connected in series through a long electrically insulating connecting channel F (see FIGS. 5 and 7).

Next, the operation will be explained. When assembling, first, the lid 15 is removed and one side of the electrolytic cell 11 is opened. Then, unit electrodes 18 are sequentially stacked on the left and right alternately up to half of the electrolytic cell 11 so that the anode electrode plate 20 is at the bottom to form a lower unit electrode 18b.

Next, the unit electrode 17 is placed on top of the electrolytic cell 11, and the anode connecting rod 29 is attached from the outer surface side of the electrolytic cell 11.
The penetrating portion of the side wall 11c is sealed with adhesive 30.

Next, the anode electrode plate 2 is placed on top of the unit electrode 17.
The unit electrodes 18 are sequentially stacked alternately on the left and right with 0 facing upward to form an upper unit electrode 18a, and the uppermost unit electrode 18a is fixed in position by appropriate means. After that, the lid body 15 is attached and the electrolytic cell 1 is
Close the side opening of No.1.

During electrolysis, the electrolyzed water inlet 1 of the electrolytic cell 11
While supplying electrolyzed water from 3 to the electrolytic cell 11,
Each unit electrode 17, 18 is energized. Then, the electrolyzed water flows in a zigzag manner through the connecting channel F in each unit electrode 17, 18 and the electrolytic channel EL between each unit electrode 17, 18, and flows out from the electrolyzed water outlet 12, and the electrolytic current flows through the anode connecting rod. 29 , flows between each unit electrode 17 and 18 while performing an electrolytic reaction, and reaches the cathode terminal 14 . At this time, the electrolyzed water is
Since the flow is zigzag within 1, a single electrolytic cell 11
Even if a large number of unit electrodes 17 and 18 are disposed within the battery, the occurrence of leakage current can be suppressed to a negligible level in practical use, and sufficient electrolysis efficiency can be obtained even if the flow rate of electrolyzed water is increased. Also, it becomes possible to effectively prevent the adhesion of cathode products. Furthermore, since the unit electrodes 17 and 18 are arranged horizontally, it is possible to effectively prevent generated gas from staying in the unit electrodes 17 and 18.

When the present applicant electrolyzed seawater using the electrolyzer shown in Figures 3 and 4, the electrolytic efficiency was equivalent to that of a single-pole electrolyzer, and leakage occurred even after long-term continuous operation. It was confirmed that the cathode was not consumed by the current and that there was no adhesion of cathode products.

Note that in the embodiment, the electrode plates 20, 21
In the above description, a required gap G is provided between the tips of the electrodes and the inner surface of the tank body 19, and this gap is used as a passage for electrolyzed water. A hole may be provided in the portion to serve as a passage for electrolyzed water. Also, as shown in FIG. 8, the electrode holding plates 23 and 24 are omitted, and both electrode plates 2
0 and 21 may be connected by a suitable shorting piece 31. Furthermore, as shown in FIG. 9, a plurality of partition plates 32 may be arranged between the electrode plates 20 and 21, and depending on the number of partition plates 32, the gap G between the electrode plates 20 and 21 may be They may be formed at ends in opposite directions.

Many other modifications and changes can be made, such as the materials of the electrode plates 20 and 21, without changing the gist of the present invention.

10 to 15 show a second embodiment of the present invention, in which a central unit electrode 117 and unit electrodes 118, 118a, 11 replace the unit electrodes 17, 18, 18a, 18b in the first embodiment.
8b, and unit electrodes 117, 118, 11
8a and 118b, the electrolyzed water outlet 12 is placed at the left end in FIG.

The unit electrode 118 is shown in FIGS. 12 and 13.
As shown in the figure, a tank body 119, an anode electrode plate 120,
It is composed of a cathode electrode plate 121, an electrode shorting piece 126, electrode holding plates 123, 124, and the like. The tank body 119 is made of an electrically insulating material such as polyvinyl chloride and is formed into a rectangular cylindrical shape with vertical openings.
From the left and right end faces in FIG. 2), two electrode holding plates 123 and 124 are provided facing each other and extending vertically from the upper and lower ends of the tank body 119 at a slightly inner position at a required interval. The electrode holding plates 123 and 124 are made of the same material as the tank body 119, and three sides except the tip are bonded to the inner surface of the tank body 119 with adhesive or the like, and each tip and the tank A required gap G is formed between the body 119 and the inner surface thereof.
A connecting flow path F extending from one gap G to the other gap G is formed in the tank body 119. Further, each of the electrode holding plates 123, 124
As shown in FIGS. 12 and 13, an anode electrode plate 120 made of a platinum-plated titanium plate and a cathode electrode plate 121 made of a stainless steel plate are arranged on the outer surface of the The electrode plates 120 and 121 are made of plastic screws 1.
25 to the electrode holding plates 123 and 124. At the center of the opposing surfaces of the electrode holding plates 123, 124, the upper and lower ends are connected to the electrode holding plates 123, 124.
An electrode shorting piece 126 made of artificial graphite is arranged to penetrate through the anode electrode plate 120 and contact each electrode plate 121, respectively.
0 is connected to the plastic screw 127, and the cathode electrode plate 121 is connected to the stainless steel screw 12.
8, respectively.

As shown in FIG. 10, this unit electrode 118 becomes an upper unit electrode 118a by stacking it above a central unit electrode 117, which will be described later, with the anode electrode plate 120 on top, and the central unit electrode 118a with the anode electrode plate 120 on the bottom. By stacking them below the electrode 117, they form a lower unit electrode 118b.

On the other hand, the central unit electrode 117 is provided with a tank body 119 having the same configuration as the unit electrode 118, as shown in FIGS. 14 and 15. Two electrode holding plates 133, 1 having electrical insulation properties at a required interval
34 are arranged, and an anode electrode plate 120 is fixed to the outer surface side of each electrode holding plate 133, 134, respectively. And each electrode holding plate 133, 134
As shown in FIG. 14, through-holes 135 are formed at both longitudinal end positions of the tank body 119 of each anode electrode plate 120 corresponding thereto. A connecting channel F is formed from the hole 135 to the other through hole 135. Both electrode plates 120 are
As shown in FIG.
An electrode short-circuiting piece 13 made of artificial graphite is located at the right end in FIG.
It is electrically connected by 6. Also, the tank body 11
9, as shown in FIGS. 10 and 14,
An anode connecting rod 129 whose base end is electrically connected to the electrode shorting piece 136 and whose tip penetrates the side wall 11c of the electrolytic cell 11 can be attached. And the side wall 11c of this anode connecting rod 129
The penetrating portion is sealed with an adhesive 30 as shown in FIG.

In the electrolytic cell 11, as shown in FIG. 10, a central unit electrode 117 is arranged at the center in the vertical direction, and below it, an anode electrode plate 120 is arranged.
For example, four unit electrodes 118 (i.e., lower unit electrodes 118b) are arranged on the left and right sides, and the anode electrode plate 120 is placed above the central unit electrode 117. Unit electrode 118 (i.e. upper unit electrode 118a)
For example, four are arranged on the left and right sides.
Further, the uppermost unit electrode 118a is fixed in position by appropriate means so as not to be lifted up by the electrolyzed water flow. As in the first embodiment, each unit electrode 117, 118, 118a,
Electrolytic channels EL are formed between each unit electrode 118b, and these electrolytic channels EL are connected to each unit electrode 117,
118, 118a, and 118b are connected in series by connecting channels F.

Even with this configuration, the same effects as in the first embodiment can be obtained.

16 to 21 show a third embodiment of the present invention, in which a central unit electrode 217 and unit electrodes 218, 218a, 218b are used in place of the unit electrodes 17, 18 in the first embodiment, and Along with using the unit electrodes 217 and 218,
Some changes have been made to the electrolytic cell 11 side.

That is, the unit electrode 218 includes a tank body 219, an electrode plate 220, and
221, an electrode holding plate 223, an electrode shorting piece 226, and the like. The tank body 219 is
It is formed into a rectangular cylindrical shape with openings at the top and bottom using an electrically insulating material such as polyvinyl chloride, and this tank body 2
An electrode holding plate 223 having a thickness thinner than the vertical length of the tank body 219 is disposed within the electrode holding plate 223 with its lower end surface flush with the other. Electrode plates 220 and 221 are fixed to the upper and lower surfaces of the electrode holding plate 223 via plastic screws.
21 are electrically short-circuited by an electrode short-circuiting piece 226 made of artificial graphite, as shown in FIGS. 18 and 19.

The electrode holding plate 223 is made of the same material as the tank body 219, and three sides except for one end in the longitudinal direction are bonded to the inner surface of the tank body 219 with an adhesive or the like. A vertical gap G is formed between one end in the direction and the inner surface of the tank body 219. As shown in FIG. 18, a convex portion 223a is provided at a position inside the gap G on the upper surface of this electrode holding plate 223.
At the end of the lower surface opposite to the gap G, a recess 223b and a vertical gas venting hole 227 are provided, as shown in FIGS. 18 and 19. As shown in FIG. 16, there is a gap G between the electrode plates 220 and 221, and a convex portion 223a and a concave portion 22.
3b, a long connecting flow path F having electrical insulation properties is formed.

Note that the electrode plates 220 and 221 are the electrode plates 220 and 221 in the case of the upper unit electrode 218a located above the central unit electrode 217 as shown in FIG.
is the anode electrode plate and the electrode plate 221 is the cathode electrode plate, and conversely, in the case of the lower unit electrode 218b located below the central unit electrode 217, the electrode plate 221 is the anode electrode plate.
20 is a cathode electrode plate, and an electrode plate 221 is an anode electrode plate. The anode electrode plate uses a platinum-plated titanium plate, and the cathode electrode plate uses a stainless steel plate.
The anode electrode plate and the electrode shorting piece 226 are connected with plastic screws, and the cathode electrode plate and the electrode shorting piece 226 are connected with stainless steel screws.

On the other hand, the central unit electrode 217 has almost the same configuration as the unit electrode 218, as shown in FIGS. 16, 20, and 21. An anode electrode plate 228 made of a plated titanium plate is provided, and the base end is electrically connected to the electrode shorting piece 226 and the tip is connected to the electrolytic tank 119.
This is the point where an anode connecting rod 229 is attached that passes through the side wall 11d. The penetrating portion of the side wall 11d of this anode connecting rod 229 is sealed with an adhesive 30 as shown in FIG.
8, electrode holding plate 223 and electrode shorting piece 22
6 are connected to each other by plastic screws.

In the electrolytic cell 11, as shown in FIG. 16, a central unit electrode 217 is disposed at the center in the vertical direction, and below the central unit electrode 217 is an electrode plate 22 on the upper surface.
Lower unit electrode 218 with 0 serving as a cathode electrode plate
b are arranged alternately on the left and right, and the central unit electrode 21
Upper unit electrodes 218a, in which the electrode plate 220 on the upper surface serves as an anode electrode plate, are arranged alternately on the left and right above the electrode 7. And these unit electrodes 21
7, 218 are positioned and fixed by distance pieces 230 at the upper and lower ends of the electrolytic cell 11. Further, as shown in FIG. 16, a recess 231 having the same shape as the recess 223b is formed in a portion of the upper wall 11a of the electrolytic cell 11 corresponding to the projection 223a of the upper unit electrode 218a at the upper end.

In addition, in this example, the electrolytic flow path EL is
As in both embodiments, each unit electrode 217, 21
8, 218a, and 218b, but the connection channel F that connects these electrolytic channels EL in series differs from both the embodiments described above, and is formed between each unit electrode 217, 218, 218a, and 218b. are formed respectively.

Even with this configuration, the same effects as in both of the embodiments described above can be obtained. In the case of this embodiment, the electrolyzed water flow path not only has a zigzag shape in the horizontal direction but also is bent in the vertical direction, so a longer flow path can be obtained. Generated gas tends to accumulate in these areas. However,
Since the recessed portion 223b is provided with a gas venting hole 227, gas can be effectively vented. Further, since the gas venting pore 227 has an extremely small diameter, leakage current from this portion can be ignored in actual use and poses no problem.

[Effects of the invention] As explained above, the membraneless horizontal parallel plate bipolar electrolyzer according to the invention has upper anode electrode plates 20 and 12 arranged horizontally and electrically short-circuited.
0,228 and the lower anode electrode plate 20,120,2
a central unit electrode 17, 117, 217 having 28 and supplied with an electrolytic current; an upper anode electrode plate 20, 12 arranged horizontally and electrically short-circuited;
0,220 and lower cathode electrode plate 21,121,2
21, and the central unit electrodes 17, 117,
A plurality of upper unit electrodes 18a, 118a, 218a sequentially arranged above 217; upper cathode electrode plates 21, 1 arranged horizontally and electrically short-circuited;
21, 220 and the lower anode electrode plate 20, 120,
221, and the central unit electrodes 17, 11
a plurality of lower unit electrodes 18b, 118b, 218b sequentially arranged below the central unit electrodes 17, 117, 217; Cathode electrode plate 2 of electrodes 18a, 118a, 218a
1, 121, 221, central unit electrode 17,
117, 217 lower anode electrode plate 20, 12
0,228 and the lower unit electrode 18b, 1 immediately below it
Cathode electrode plates 21, 121, 2 of 18b, 218b
20, predetermined upper unit electrodes 18a, 118
a, 218a anode electrode plate 20, 120, 220
and upper unit electrodes 18a, 118a, 2 directly above it.
18a and the cathode electrode plates 21, 121, 221, and predetermined lower unit electrodes 18b, 118.
b, 218b anode electrode plate 20, 120, 221
and the lower unit electrodes 18b, 118b, 2 directly below it.
Electrolytic channels EL for electrolyzing electrolyzed water are formed between the cathode electrode plates 21, 121, 220 of 18b, and these electrolytic channels EL are connected to the respective unit electrodes 17, 18a, 18b, 117. ,118
a, 118b, 217, 218a, 218b or upper and lower unit electrodes 17, 18a, 18b, 11
7, 118a, 118b, 217, 218a, 2
Since they are connected in series by a long electrically insulating connecting flow path F formed between 18b, an ideal diaphragmless electrolyzer with a simple structure and no leakage current or cathode deposits can be constructed. , equipment costs and running costs can be significantly reduced. Additionally, the installation area can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a general bipolar solution device, Fig. 2 is an explanatory diagram showing a conventional example, Fig. 3 is a sectional view showing the first embodiment of the present invention, and Fig. 4 is a diagram similar to Fig. 3. right side view,
Figure 5 is a cross-sectional view of the unit electrode, and Figure 6 is A in Figure 5.
-A sectional view, FIG. 7 is a sectional view of the central unit electrode, FIGS. 8 and 9 are sectional views showing modifications of the first embodiment, and FIG. 10 is a sectional view of the second embodiment of the present invention. 11 is a right side view of FIG. 10, FIG. 12 is a sectional view of the unit electrode, FIG. 13 is a sectional view taken along the line B-B in FIG. 12, and FIG. 14 is a sectional view of the central unit electrode. 15 is a sectional view taken along the line C-C in FIG. 14, FIG. 16 is a sectional view showing the third embodiment of the present invention, FIG. 17 is a partially cutaway right side view of FIG. 16, and FIG. The figure is a sectional view of a unit electrode, FIG. 19 is a sectional view taken along line D-D in FIG. 18, FIG. 20 is a sectional view of the central unit electrode, and FIG. 21 is a sectional view taken along line E-E in FIG. 20. . 11: Electrolytic cell, 12: Electrolyzed water outlet, 13: Electrolyzed water inlet, 14: Cathode terminal, 17, 117, 21
7: Central unit electrode, 18, 118, 218: Unit electrode, 18a, 118a, 218a: Upper unit electrode, 18b, 118b, 218b: Lower unit electrode, 19, 119, 219: Tank body, 20, 12
0,228: Anode electrode plate, 21,121: Cathode electrode plate, 22,23: Partition plate, 23,24,12
3,124,133,134,223: electrode holding plate, 26,31,126,136,226: electrode shorting piece, 29,129,229: anode connecting rod, 135: through hole, 220,221: electrode plate,
223a: Convex portion, 223b, 231: Concave portion, G:
gap.

Claims (1)

[Scope of utility model registration request] A central unit electrode 17, 117 having a horizontally arranged and electrically shorted upper anode electrode plate 20, 120, 228 and a lower anode electrode plate 20, 120, 228 and to which an electrolytic current is supplied. , 217 and;
It has an upper anode electrode plate 20, 120, 220 and a lower cathode electrode plate 20, 121, 221 arranged horizontally and electrically short-circuited, and above the central unit electrode 17, 117, 217. A plurality of upper unit electrodes 18a, 118a, 218a arranged in sequence
has an upper cathode electrode plate 21, 121, 220 and a lower anode electrode plate 20, 120, 221 arranged horizontally and electrically short-circuited; A plurality of lower unit electrodes 18b, 118b, 218 sequentially arranged below.
central unit electrodes 17, 117, 21;
7 and the upper unit electrodes 18a, 118a, 218 directly above the anode electrode plates 20, 120, 228
Between the cathode electrode plates 21, 121, 221 of a, the anode electrode plates 20, 120, 228 below the central unit electrodes 17, 117, 217 and the cathode electrode plates of the lower unit electrodes 18b, 118b, 218b immediately below them. 2
1, 121, 220, the anode electrode plate 20 of the predetermined upper unit electrode 18a, 118a, 218a,
120, 220 and the upper unit electrode 18 directly above them
a, 118a, 218a cathode electrode plates 21, 12
1, 221, and a predetermined lower unit electrode 1
8b, 118b, 218b anode electrode plate 20, 1
20, 221 and the lower unit electrode 18b directly below it,
118b, 218b cathode electrode plates 21, 121,
220, there is an electrolytic flow path for electrolyzing the electrolyzed water.
ELs are formed respectively, and these electrolytic channels
EL includes each of the unit electrodes 17, 18a, 18b,
117, 118a, 118b, 217, 218
a, 218b or upper and lower unit electrodes 17, 18
a, 18b, 117, 118a, 118b, 21
7, 218a, and 218b are connected in series by a long electrically insulating connecting channel F formed between them.