JP2002224671A - Electrolytic cell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrolytic cell which can enhance electrolytic efficiency without lowering the flow rate of water flowing the inside while miniaturizing the cell. SOLUTION: A cathode chamber 1 having a cathode 11 inside, and an anode chamber 2 having an anode 21 inside are formed through a electrolytic diaphragm 3. An inlet 41 of water is provided at one side of the cathode chamber 1 and the anode chamber 2, respectively, and an outlet 42 of water is provided at the other side. A diaphragm support 6 which supports the electrolytic diaphragm 3, and on which straightening ribs 5 are formed to make a direction from the inlet 41 side of the cathode chamber 1 and the anode chamber 2 to the outlet 42 side in a longitudinal direction, is provided. Running water passages 7 partitioned by the straightening ribs 5 are formed in the cathode chamber 1 and the anode chamber 2. Flow parts 51 to which water can flow to the adjacent running water passages 7 partitioned by the straightening ribs 5 are formed in the inlet 41 side end part of the straightening ribs 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic cell of an ion water generator for generating alkaline ionized water and acidic ionized water by electrolyzing tap water, well water, and the like.
The present invention relates to a unit cell type electrolytic cell of the continuous type.

[0002]

2. Description of the Related Art Conventionally, an ion water generator using an electrolytic cell is generally used as an ion water generator for generating alkaline ionized water and acidic ionized water by electrolyzing tap water or well water. .

[0003] The electrolytic cell has a cathode chamber having a cathode therein and an anode chamber having an anode therein via an electrolytic diaphragm (partition), respectively. An inflow port and an outflow port of water are provided at both ends, respectively, and water flowing in from the inflow port is electrolyzed in a cathode compartment and an anode compartment partitioned by an electrolytic membrane, and alkali ion water is supplied from the cathode compartment side. The acidic ion water is generated from the anode chamber side.

[0004] Such electrolytic cells are broadly classified into two types, a batch type and a continuous type, depending on their structure. The batch method is a method in which the alkaline ionized water and the acidic water generated in the electrolytic cell are stored in the electrolytic cell.
643), and the continuous method is a method in which water is continuously flowed into and out of a cathode chamber and an anode chamber of an electrolytic cell to continuously obtain alkaline ionized water and acidic ionized water. Of these two systems, the continuous system has become the mainstream in addition to adding a water purification function because of the convenience of continuously obtaining alkaline ionized water.

In a continuous electrolytic cell, the size of the electrolytic cell must be reduced in order to efficiently produce alkaline ionized water or acidic ionized water having a large pH (an index indicating the hydrogen ion concentration) or a small pH in a short time. For this purpose, flowing water type electrolytic cells having various structures have been proposed, and a typical example thereof is a unit cell type.

The unit cell system is composed of a box (cell) of the electrolytic cell main body and a diaphragm box with a diaphragm arranged inside the box (cell) of the electrolytic cell main body, and an anode chamber (or a cathode chamber) is provided inside the diaphragm box. ), And a cathode chamber (or anode chamber) is formed outside the diaphragm box and inside the box (cell) of the electrolytic cell main body (Japanese Utility Model Laid-Open No. 2-95589, Japanese Unexamined Patent Publication No. 3-38-38).
293). Regarding this unit cell type electrolytic cell, various devices for improving the efficiency have been proposed, for example, a pair of frames on both sides of a diaphragm of the electrolytic cell disclosed in JP-A-9-253649. A member that forms a meandering electrolyte flow path having no dead water area by a member to improve electrolysis efficiency, and a raw water introduction chamber between a raw water introduction port and an electrolysis chamber disclosed in Japanese Patent Application Laid-Open No. 7-308673. Along with the raw water inlet, a flow rate adjusting passage whose passage area changes in the width direction with respect to the raw water inlet is provided between the raw water introduction chamber and the electrolysis chamber, and the raw water velocity distribution passing through the electrolysis chamber of the raw water passing through the electrolysis chamber is adjusted. A proposal has been made to increase the electrolysis efficiency by homogenization.

[0007]

However, in the structure disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 9-253649, since the effective area of the electrode per unit volume is small in the meandering electrolyte flow path shape, the The tank cannot be downsized,
Further, the meandering shape of the electrolyte flow path has a problem that the pressure loss is large and the flow rate of the electrolyte flowing inside the electrolytic cell is reduced.

[0008] Further, in the apparatus disclosed in the above-mentioned Japanese Patent Application Laid-Open No. Hei 7-308673, the provision of the raw water introduction chamber makes it impossible to reduce the size of the electrolytic cell by the size of the chamber and to reduce the size. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to reduce the size and to improve the electrolytic efficiency without reducing the flow rate of water flowing inside. It is an object to provide a tank.

[0010]

In order to solve the above-mentioned problems, an electrolytic cell according to the present invention comprises a cathode chamber 1 having a cathode 11 therein and an anode chamber 2 having an anode 21 therein.
The cathode chamber 1 and the anode chamber 2 are provided with a water inlet 41 on one side and a water outlet 42 on the other side to support the electrolytic membrane 3 and to form the cathode chamber 1. And a diaphragm support 6 provided with a rectifying rib 5 having a longitudinal direction extending from the inflow port 41 side to the outflow port 42 side of the anode chamber 2, and a flowing water channel 7 partitioned by the rectification rib 5 is formed in the cathode chamber 1. And the anode chamber 2, and a flow portion 51 through which water can flow in the adjacent flowing water channel 7 partitioned by the flow straightening rib 5 at the end of the flow straightening rib 5 on the side of the inlet 41. It is characterized by the following. With such a configuration, the water flowing in the cathode chamber 1 and the anode chamber 2 can be rectified by the rectifying ribs 5, respectively.

An outlet 42 and an inlet 41 are provided so that the directions of water flowing in and out from the outlet 42 and the inlet 41 are substantially the same as the longitudinal direction of the flow regulating rib 5. A plurality of ribs 5 are formed.
Of these, it is preferable that the flow portion 51 is formed longer as the flow straightening rib 5 is farther from the inlet 41. With such a configuration, of the flowing water channel 7 partitioned by the rectifying rib 5,
It is possible to reduce the deviation such that the water flowing from the inlet 41 flows more in the flow channel 7 closer to the inlet 41, and to further prevent the amount of water flowing in each of the flow channels 7 from varying. is there.

Further, it is preferable to provide a baffle plate 61 near the inflow port 41 for preventing water flowing from the inflow port 41 from directly flowing into the flowing water channel 7. With such a configuration, of the flow channels 7 partitioned by the rectifying ribs 5, the deviation that the water flowing from the flow port 41 flows more as the flow channel 7 is closer to the flow port 41 is further reduced. The amount of water flowing through each water passage 7 can be made substantially equal.

An outlet 42 and an inlet 41 are provided so that the direction of water flowing in and out from the outlet 42 and the inlet 41 is substantially perpendicular to the longitudinal direction of the rectifying rib 5. It is preferable that a plurality of the rectifying ribs 5 are formed, and the rectifying ribs 5 farther from the inflow port 41 among the plurality of rectifying ribs 5 are formed to have a shorter flow portion 51. With such a configuration, of the flow channels 7 partitioned by the rectifying ribs 5, the flow channel 7 closer to the inflow port 41 reduces the bias that the water flowing in from the inflow port 41 flows more, and each of them is reduced. This can further prevent the amount of water flowing through the flowing water channel 7 from varying.

Further, it is preferable to form a flat surface 62 between the flow portions 51 formed on the plurality of flow regulating ribs 5. With such a configuration, it is possible to prevent the water flowing in the adjacent flowing water channel 7 across the flow portion 51 formed in the rectifying rib 5 from becoming unstable due to the deflection of the electrolytic diaphragm 3. Can be done.

The flat surface 62 is connected to the flow portion 5 of the flow regulating rib 5.
It is preferable that the rib is formed substantially flush with the rib projection height at 1. With such a configuration, the water flowing in the adjacent flowing water channel 7 across the flow portion 51 formed in the rectifying rib 5 has an unstable flow due to the bending of the electrolytic diaphragm 3 and unevenness due to the rectifying rib 5. Can be suppressed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4, a second embodiment will be described with reference to FIGS. 5 to 8, and a third embodiment will be described with reference to FIG. This will be described in detail with reference to FIGS. [First Embodiment] An electrolytic cell according to the present embodiment is disposed inside an electrolytic cell casing 8 which serves as an outer shell of a main body container of the electrolytic cell and also serves as an outer shell of the cathode chamber 1. The main body is composed of the diaphragm case 9 which forms the inner shell of the cathode chamber 1 and the outer shell of the anode chamber 2.

As shown in FIGS. 1 and 2, the electrolytic cell casing 8 has a rectangular shape in a front view and a substantially box-like shape having a width (ie, thickness) shorter in a side view than in a front view. It is. As shown in FIGS. 1 to 3, the diaphragm case 9 disposed inside the electrolytic cell casing 8 has a rectangular shape slightly smaller than the outer shape of the electrolytic cell casing 8 in a front view and a side view. Width of the electrolytic cell casing 8
Is formed in a substantially box shape shorter than the width in side view, and is disposed between the inner surface of the electrolytic cell casing 8 and the outer surface of the diaphragm case part 9 so as to form a gap serving as the cathode chamber 1. You.

At the lower end of the electrolytic cell casing 8, an inflow port 41b on the anode chamber 2 side for inflow of water into the anode chamber 2 is provided downward, and for inflow of water into the cathode chamber 1. An inlet 41a on the cathode chamber 1 side is provided downward, and an outlet 42a on the cathode chamber 1 side for discharging water from the cathode chamber 1 is directed upward at the upper end of the electrolytic cell casing 8. An outlet 42b on the anode chamber 2 side for discharging water from the anode chamber 2 is provided upward.

As described above, the diaphragm case 9 is disposed inside the electrolytic cell casing 8 and
Is partitioned into a cathode chamber 1 and an anode chamber 2,
This comprises an electrolytic diaphragm 3 and a diaphragm support 6 supporting the electrolytic diaphragm 3.

The diaphragm support 6 is formed of a synthetic resin in a frame shape having a rectangular shape in a front view, and is formed on the front end side and the rear end side of the diaphragm support 6 in a rectangular shape in a front view. Are adhered to each other in a watertight manner by ultrasonic welding to form a substantially box-shaped diaphragm case portion 9, and the inside of the diaphragm case portion 9 surrounded by the front and rear electrolytic diaphragms 3 and the frame-shaped diaphragm support 6 is used as an anode chamber. 2. At the lower end of the frame-shaped diaphragm support 6, a diaphragm case inlet 41c is provided downward at a position corresponding to the inlet 41b on the anode chamber 2 side provided in the electrolytic cell casing 8, and At the upper end of the diaphragm support 6, a diaphragm case outlet 42 c is provided upward at a position corresponding to the outlet 42 b on the anode chamber 2 side provided in the electrolytic cell casing 8. When it is disposed inside, the inlet 41b on the anode chamber 2 side and the membrane case inlet 41c are connected, and the outlet 42b on the anode chamber 2 side is connected.
And the diaphragm case outlet 42c, the water flowing from the inlet 41b on the anode chamber 2 side provided in the electrolytic cell casing 8 flows upward into the anode chamber 2, and flows out from the anode chamber 2. Water is discharged upward from an outlet 42 b on the anode chamber 2 side provided in the electrolytic cell casing 8.

When such a diaphragm case portion 9 is disposed inside the electrolytic cell casing 8, as described above, the space surrounded by the front and rear electrolytic diaphragms 3 and the diaphragm support 6 serves as an anode chamber 2.
A space surrounded by the front electrolytic wall 3a and the front inner wall 8a of the electrolytic cell casing 8 and a space surrounded by the rear electrolytic wall 3b and the rear inner wall 8b of the electrolytic cell casing 8 are referred to as a cathode. This is room 1. The water flowing from the cathode chamber 1 side inlet 41a provided at the lower end of the electrolytic cell casing 8 flows upward into the cathode chamber 1, and the water flowing out of the cathode chamber 1 is Are discharged upward from the outlet 42a on the cathode chamber 1 side provided at the upper end of the cathode chamber 1.

The cathode 11 is disposed inside the cathode chamber 1, and the anode 21 is disposed inside the anode chamber 2. The anode 21 is a single electrode plate having a rectangular shape in a front view and housed inside the diaphragm case portion 9, and is disposed so as to be located substantially in the middle of the front and rear electrolytic diaphragms 3. Cathode 11
Is an electrode plate having a rectangular shape as viewed from the front, which is housed between the inner surface of the electrolytic cell casing 8 and the outer surface of the diaphragm case portion 9, one sheet on each of the front and rear sides of the diaphragm case portion 9, that is,
One sheet is disposed substantially at the center between the front electrolytic membrane 3a and the front inner wall 8a of the electrolytic cell casing 8, and one sheet is disposed substantially at the center between the rear electrolytic wall 3b and the rear inner wall 8b of the electrolytic cell casing 8. Are arranged. Such an anode 21 and a cathode 11 are
The inside of the electrolytic cell casing 8 is opposed to the cathode case 1 and the anode room 2 via the electrolytic diaphragm 3 of the diaphragm case 9 which partitions the inside into the cathode chamber 1 and the anode chamber 2.

The diaphragm case section 9 is arranged so that the cathode 11 or the anode 21 and the electrolytic diaphragm 3 are not in close contact with each other on both sides of the front and rear surfaces of each electrolytic diaphragm 3. A plurality of rectifying ribs 5 for rectifying the water flowing through the water are provided. In the present embodiment, three rectifying ribs 5 whose longitudinal direction is the vertical direction are equally spaced apart from each other in the horizontal direction, and are laid on the upper and lower pieces of the frame-shaped diaphragm support 6, and Although they are welded, the number of the flow regulating ribs 5 and the like are determined as appropriate, and are not particularly limited to this. The rectifying ribs 5 are arranged between the cathode 11 or the anode 21 and the electrolytic membrane 3 to partition the inside of the cathode chamber 1 and the inside of the anode chamber 2 into a plurality of flowing water channels 7, respectively. Are divided into four flowing water passages 7 by three rectifying ribs 5.

Further, the rectifying rib 5 is provided at an end of the rectifying rib 5 on the side of the water inlet 41 so that water can flow between the adjacent flowing water channels 7 on both sides partitioned by the rectifying rib 5. 5 is formed with a flow portion 51 cut out. Fluid section 5
Reference numeral 1 denotes a notch on the cathode 11 or anode 21 side of the rectifying rib 5 disposed between the cathode 11 or the anode 21 and the electrolytic membrane 3 to cut out the rib projection height of the notched portion (that is, the flow portion 51). It is formed by lowering the rib protruding height of the unexposed portion. By doing so, the inlet 4
The water flowing in from 1 can flow not only into the flowing water channel 7 a communicating with the inflow port 41 but also into other flowing water channels 7.
And the flow part 51 formed in the some rectification rib 5 is
Flow portion 5 formed on flow straightening rib 5 farther than inlet 41
The length h of the notch in the vertical direction is increased by about ₁ (h ₁
<H ₂ <h ₃ ) By doing so, it is possible to reduce the bias that the water flowing from the inflow port 41 flows more in the flow channel 7 closer to the inflow port 41.

Further, a baffle plate 61 is disposed at a position slightly inside the water inlet 41 so as to be substantially perpendicular to the inflow direction of the water flowing from the inlet 41. As a result, the water flowing in from the inflow port 41 is prevented from directly flowing into the inflow channel 7 a communicating with the inflow port 41, and the inflow channel 7 closer to the inflow port 41 is flown from the inflow port 41. Offsets, such as a large flow of water, can be further reduced, so that the water flows into each flowing water channel 7 almost uniformly.

In the electrolytic cell of the present embodiment as described above, the inlet 41b on the anode chamber 2 side or the flow port on the cathode chamber 1 side provided at the lower end of the electrolytic cell casing 8 downward. As shown in FIG. 4, the water flowing upward from the inlet 41 a is substantially perpendicular to the baffle plate 61, which is disposed at a position slightly inside the water inlet 41, and travels in the lateral direction. In other words, the plurality of rectifying ribs 5 having a longer vertical length h of the flow portion 51 formed so as to be notched farther away from the inflow port 41 allows water to flow into each flowing water channel 7 almost evenly, so that the electrolytic diaphragm is formed. Electrolysis is carried out by the cathode 11 and the anode 21 which are energized in the cathode chamber 1 and the anode chamber 2 partitioned by 3, and alkali ion water is efficiently generated from the cathode chamber 1 side and acidic ion water is generated from the anode chamber 2 side efficiently. Is what is done.

Table 1 shows the electrolytic cell of this embodiment and the baffle 6
1 and an electrolytic cell without the flow section 51 are provided with an electrolytic efficiency of
(%) Shows the result of comparison. The flow rate indicates a value at a hydraulic pressure of 1.0 kPa.

[0028]

[Table 1]

Here, the electrolysis efficiency ξ (%) indicates the ratio of 0H ⁻ ions generated per unit current.
Mass transfer amount W (g) based on Faraday's law;
Using the actual mass transfer amount W ′ (g), ξ = (w ′ /
w) × 100.

As can be seen from the results, the electrolytic cell provided with the baffle plate 61 and the flow portion 51 as in the present embodiment makes it possible to effectively use the area of each of the electrode plates constituting the cathode 11 and the anode 21. And the flow rate of water flowing through the cathode chamber 1 and the anode chamber 2 is not reduced, and the electrolysis efficiency ξ (%) can be sufficiently increased. Second Embodiment Next, a second embodiment will be described with reference to FIGS. The electrolytic cell in this embodiment is basically the same as that in the first embodiment, and mainly different points will be described.

The electrolytic cell according to the present embodiment includes an inlet 41 b on the anode chamber 2 side provided in the electrolytic cell casing 8 and a cathode chamber 1.
And the inlet 41a on the anode chamber 2 side and the inlet 41a on the cathode chamber 1 side are provided downward at the lower end of the electrolytic cell casing 8 as in the first embodiment. Instead, as shown in FIG. 5, an inlet 41b on the anode chamber 2 side and an inlet 41a on the cathode chamber 1 side are provided at the lower ends of both side ends of the electrolytic cell casing 8, respectively, toward the outside, and the diaphragm case is provided. Diaphragm case inlet 41 provided in diaphragm support 6 of section 9
c is not provided downward at the lower end of the diaphragm support 6 as in the first embodiment, but is shown in FIGS.
As shown in the figure, an inlet 41b on the side of the anode chamber 2 provided in the electrolytic cell casing 8 at the lower end of the side end of the diaphragm support 6
Are provided outwardly at positions corresponding to.

Further, the flow portion 5 formed on the flow regulating rib 5
7 does not increase the cut-out vertical length h as the flow portion 51 formed in the rectifying rib 5 farther from the inflow port 41 as in the first embodiment, but FIGS. 7 and 8.
As shown in FIG. 5, the notched vertical length h of the flow portion 51 formed on the rectifying rib 5 farther than the inflow port 41 is reduced (h ₁ > h ₂ > h ₃ ).

In the manner described above, the inlet 41b on the anode chamber 2 side or the inlet 41a on the cathode chamber 1 side provided at the lower end of both sides of the electrolytic cell casing 8 outwardly is provided. As shown in FIG. 8, the water flowing inward has a plurality of rectifying ribs 5 each having a shorter vertical length h of a flow portion 51 formed by cutting away from the inlet 41.
As a result, water flows almost uniformly into each of the flowing water channels 7, and is electrolyzed by the cathode 11 and the anode 21 that are energized in the cathode chamber 1 and the anode chamber 2 partitioned by the electrolytic diaphragm 3, and the cathode chamber 1 side From the anode chamber 2 side, the alkaline ionized water is efficiently generated from the anode chamber 2 side.
1 can be effectively used, and the electrolysis efficiency can be sufficiently increased without reducing the flow rate of water flowing through the cathode chamber 1 and the anode chamber 2. [Third Embodiment] Next, a third embodiment will be described with reference to FIGS. The electrolytic cell in this embodiment is basically the same as that in the first embodiment, and mainly different points will be described.

The electrolytic cell according to the present embodiment is obtained by forming a flat surface 62 between flow portions 51 formed on a plurality of rectifying ribs 5 in the diaphragm case 9 of the first embodiment.

As described in the first embodiment, the flow portion 51 is formed by cutting out the rectifying rib 5 disposed between the cathode 11 or the anode 21 and the electrolytic membrane 3 on the side of the cathode 11 or the anode 21. The rib projection height of the notched portion (that is, the flow portion 51) is lower than the rib projection height of the non-cut portion, and the flat surface 62 in the present embodiment has the rib projection height of the flow portion 51, That is, it is formed so as to be substantially flush with the rib projection height of the notched portion (that is, the flow portion 51), which is lower than the rib projection height of the non-notched portion.

As shown in FIG. 9, the flat surface 62 has a flow portion 51 formed on the central rectifying rib 5 as shown in FIG.
As shown in FIG. 10 or a rectangular shape having the upper end as the upper side,
The upper end of the flow portion 51 formed on each of the flow straightening ribs 5 on the right side as shown in FIG. A rectangular shape having a portion as an upper side is combined with the upper side so that the upper side is stepped.

In the above manner, the inflow from the inflow port 41b on the anode chamber 2 side or the inflow port 41a on the cathode chamber 1 side, which is provided downward at the lower end of the electrolytic cell casing 8, flows upward. As described in the first embodiment, the water that has flowed substantially perpendicularly to the baffle plate 61 disposed at a position slightly inside the water inlet 41 to change the course in the horizontal direction. Each flow passage 7 is formed by a plurality of flow straightening ribs 5 having a longer vertical length h of the flow portion 51 formed by cutting out the flow straightening rib 5 farther than the inlet 41.
Although the water flows almost evenly into the flow passage, the water flowing into the adjacent flow passage 7 across the flow portion 51 formed in the rectifying rib 5 is formed by the formation of the flat surface 62. Diaphragm 3
The flow can be prevented from becoming unstable due to the deflection, and the amount of water flowing into each flow channel 7 can be further reduced, so that water can flow into each flow channel 7 more evenly. I can do it.

[0038]

As described above, according to the first aspect of the present invention, a cathode chamber having a cathode therein and an anode chamber having an anode therein are formed via an electrolytic diaphragm. A water inlet is provided on one side of the chamber and the anode chamber, and a water outlet is provided on the other side to support the electrolytic membrane, and a direction from the inlet side of the cathode chamber and the anode chamber to the outlet side Is provided with a diaphragm support having a rectifying rib having a longitudinal direction, and a flowing water channel partitioned by the rectifying rib is formed in the cathode chamber and the anode chamber, and the rectifying rib is partitioned by an inflow-side end of the rectifying rib. Since the flowing part that allows water to flow is formed in the adjacent flowing water channel, the water flowing in the cathode chamber and the anode chamber is rectified by the rectifying ribs, so that the water flowing in the cathode chamber and the anode chamber is formed. Enhance the electrolysis efficiency sufficiently without reducing the flow rate, The alkaline ionized water from the chamber side, it is capable of efficiently generating an acid ion water from the anode chamber side.

According to the second aspect of the present invention, in addition to the effects of the first aspect, the direction of water flowing out and in from the outlet and the inlet is substantially the same as the longitudinal direction of the rectifying rib. The outlet and the inlet are provided as described above, and a plurality of rectifying ribs are formed on the diaphragm support, and the rectifying rib farther from the inlet is formed with a longer flow portion in the plurality of rectifying ribs. Of the flowing water channels, the flow channel nearer to the inlet reduces the bias such that more water flows in from the inlet, and further prevents the amount of water flowing through each of the flowing channels from fluctuating. The electrolysis efficiency can be increased without reducing the flow rate of water flowing through the cell.

According to the third aspect of the present invention, in addition to the effects of the second aspect, a baffle plate for preventing water flowing from the inflow port directly into the flowing water channel is provided near the inflow port. Because of this, of the flow channels divided by the rectifying ribs, the bias that the water flowing from the flow channel flows more near the flow channel is further reduced, and the amount of water flowing through each flow channel is further reduced. Are made substantially uniform, so that the electrolysis efficiency can be further increased.

According to a fourth aspect of the present invention, in addition to the effects of the first aspect of the present invention, the direction of water flowing in and out of the outlet and the inlet is substantially perpendicular to the longitudinal direction of the flow regulating rib. An outlet and an inlet are provided, and a plurality of rectifying ribs are formed on the diaphragm support member. Of the plurality of rectifying ribs formed, the rectifying rib farther from the inlet has a shorter flow portion, so that the rectifying rib is partitioned by the rectifying rib. Of the flow channels, the closer the flow channel is to the inlet, the more the flow of water flowing in from the inlet is reduced, so that the amount of water flowing through each flow channel is further prevented from varying, Electrolysis efficiency can be increased without reducing the flow rate of flowing water.

According to the fifth aspect of the present invention, in addition to the effects of the first aspect of the present invention, a flat surface is formed between the flow portions formed in the plurality of rectifying ribs. Water flowing across the flowing section and flowing into the adjacent flowing channel,
It is possible to suppress the flow from becoming unstable due to the deflection of the electrolytic membrane, and to increase the electrolysis efficiency without reducing the flow rate of the water flowing inside.

According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, the flat surface is formed substantially flush with the rib projection height at the flow portion of the rectifying rib. The flow of water flowing across the flow section formed on the ribs to the adjacent water channel is prevented from becoming unstable due to the deflection of the electrolytic membrane and unevenness due to the rectifying ribs, and the flow rate of water flowing inside is reduced It is possible to increase the electrolysis efficiency without performing.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an electrolytic cell according to a first embodiment of the present invention.

FIG. 2 shows an electrolytic cell in the embodiment of the above, and (a)
Is a partially broken side view, and (b) is an enlarged view of a portion A of (a).

FIG. 3 is a front view of the diaphragm support in the embodiment.

FIG. 4 is a vector diagram showing a state of water flow in the embodiment.

FIG. 5 is a partially cutaway front view of an electrolytic cell according to a second embodiment of the present invention.

FIG. 6 shows an electrolytic cell in the embodiment of the above, and (a)
Is a partially broken side view, and (b) is an enlarged view of a B portion of (a).

FIG. 7 is a front view of the diaphragm support in the embodiment.

FIG. 8 is a vector diagram showing a state of water flow in the embodiment.

FIG. 9 is a front view of a membrane support according to a third embodiment of the present invention.

FIG. 10 is a front view of another diaphragm support according to the embodiment.

FIG. 11 is a front view of still another diaphragm support according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cathode room 11 Cathode 2 Anode room 21 Anode 3 Electrolytic diaphragm 41 Water inlet 42 Water outlet 5 Rectifying rib 51 Flowing part 6 Diaphragm support 7 Flowing water channel

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] May 21, 2001 (2001.5.2)
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

Table 1 shows the electrolytic cell of this embodiment and the baffle 6
1 and an electrolytic cell without the flow section 51 are provided with an electrolytic efficiency of
(%) Shows the result of comparison. Flow rate is hydrodynamic pressure
The value at 0.1 MPa is shown.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Juichi Nishikawa 1048 Kazuma Kadoma, Kadoma-shi, Osaka F-term in Matsushita Electric Works, Ltd. (reference) 4D061 DA03 DB07 EA02 EB01 EB04 EB12 EB16

Claims (6)

[Claims] 1. A cathode chamber having a cathode therein and an anode chamber having an anode therein are formed through an electrolytic diaphragm, and an inlet for water is provided on one side of each of the cathode chamber and the anode chamber. Providing an outlet for water on the other side, supporting the electrolytic membrane, and providing a diaphragm support having a rectifying rib formed in a longitudinal direction from the inlet side of the cathode chamber and the anode chamber to the outlet side, A flow channel divided by the rectifying rib is formed in the cathode chamber and the anode chamber, and a flow portion in which water can flow into an adjacent flow channel divided by the rectifying rib is formed at an inlet end of the rectifying rib. An electrolytic cell characterized by comprising: 2. An outflow port and an inflow port are provided so that directions of water flowing in and out from the outflow port and the inflow port are substantially the same as the longitudinal direction of the flow control rib, and a plurality of flow control ribs are formed on the diaphragm support. ,
2. The electrolytic cell according to claim 1, wherein, of the plurality of rectifying ribs, the rectifying rib farther from the inflow port has a longer flow portion. 3. The electrolytic cell according to claim 2, wherein a baffle plate for preventing water flowing from the inlet into the flowing water channel is provided near the inlet. 4. An outflow port and an inflow port are provided such that directions of water flowing in and out from the outflow port and the inflow port are substantially orthogonal to a longitudinal direction of the flow control rib, and a plurality of flow control ribs are formed on the diaphragm support. The flow portion is formed to be shorter as the flow rib is farther from the inlet of the plurality of flow control ribs.
The electrolytic cell as described. 5. The electrolytic cell according to claim 1, wherein a flat surface is formed between the flow portions formed on the plurality of rectifying ribs. 6. A flat surface is formed so as to be substantially flush with a rib projection height at a flow portion of a flow regulating rib.
The electrolytic cell as described.