JPH08126887A - Electrolytic cell of ionized water generator - Google Patents

Abstract

PURPOSE: To obtain uniform and specified electrolytic efficiency by providing a water supply nozzle having a conical inner wall with the diameter increasing gradually toward the tip. CONSTITUTION: When water is introduced into a water supply nozzle 6, a water stream proceeding in a circular pipe-shaped water passage in its axial direction collides with a conical inner wall 6A at the tip of the water passage. Since the diameter of the inner wall 6A is gradually increased toward the tip, the water streams collide with the inner wall 6A at different positions, and the water streams W1 and W2 directed toward the slits 8A and 18A are formed. The water streams W1 and W2 flow into the two slits 8A and 18A communicating respectively with an anode compartment P and a cathode compartment N, and the water stream is distributed uniformly between the two slits 8A and 18A. Further, since the inner wall 6A is convexed, the water stream is dispersed on a plane vertical to the axis of the nozzle 6 at a wide angle. Accordingly, the water stream is distributed uniformly between the two slits 8A and 18A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic cell such as an ion water generator such as a strongly acidic water generator or an alkaline ion water generator.

[0002]

2. Description of the Related Art Conventionally, various ion water generators have been commercialized to obtain alkaline ionized water and acidic water by electrolytically treating neutral water such as tap water. It is equipped with a tank, electrolysis power supply and control unit.

The electrolyzer forms a container for receiving raw water such as tap water from a water supply nozzle. The inside of the electrolytic cell is divided into an anode chamber and a cathode chamber by a flat ion-permeable diaphragm, and the anode is arranged in the anode chamber, while the cathode is arranged opposite to the cathode chamber. The electrolysis power source is connected to the anode and the cathode, and is configured to flow a direct current to both electrodes to electrolyze water flowing into the electrolytic cell container.

The water supply side of the electrolyzer is provided with a water supply valve for supplying and stopping tap water at the start and end of electrolysis, and a flow meter for detecting the flow rate of tap water.
In the case of a strongly acidic water generator, etc., an additive solution storage tank for storing sodium chloride, potassium chloride, etc. is provided in the connecting pipe between the flow meter and the electrolytic cell, and a predetermined amount is supplied to the electrolytic cell by a pump. It has become so. Furthermore, the drainage port of acidic water is connected to the anode chamber of the electrolytic cell, the drainage port of alkaline ionized water is connected to the cathode chamber, and necessary ionized water is taken in appropriately, and unnecessary ionized water is discarded. It has become.

The structure of the electrolytic cell will be described in more detail with reference to FIG. Here, FIG. 4 shows a technique described and proposed by the applicant in the application numbers Japanese Patent Application Nos. 6-39192 and 39193. The electrolytic cell 100 is provided with two electrode plates 2 and 12 constituting a container, two sets of spacer rubbers 7 and 17, two electrolytic cell spacers 8 and 18, one diaphragm sheet 9, terminals 4 and 14. Consists of Electrode plate 2
And 12 are 1 with spacer rubbers 7 and 17 inserted.
A thin electrolytic cell container having watertightness is formed by sandwiching the diaphragm sheets 9. The water supply nozzle 106 is provided at one end of the electrode plate 2, and the water supply nozzle 3 and the terminal 4 are provided at the other end. Further, a water supply nozzle 13 is provided on the other end side of the electrode plate 12.
And a terminal 14 are provided.

The tap water flowing from the water supply nozzle 106 of the electrode plate 2 passes through the inside of the electrolytic cell 100 and is electrolyzed into acidic ion water and alkaline ion water. The water supply nozzle 3 and the water supply nozzle 13 are outlets for taking out the acidic ion water or the alkaline ion water, and depending on the polarity of the voltage applied to the electrode plate terminal 4 and the electrode plate terminal 14, the acidic water or the alkaline ion water. Is decided. Electrode plate terminal 4 and electrode plate terminal 1
The polarity of the voltage applied to 4 can be set arbitrarily. If + is applied to the electrode plate terminal 4 and-is applied to the electrode plate terminal 14, acidic water is produced from the anode chamber and alkaline ionized water is produced from the cathode chamber.

The spacer rubbers 7, 17 have an opening 7 at the center.
b, 17b, which are outer peripheral edge portions 7a, 17a, and electrolytic cell spacers 8, 18 of the same size as these are fitted into the openings 7b, 17b, respectively. The two electrolytic cell spacers 8 and 18 form an open tank chamber 8B at a position corresponding to the water supply nozzle 106, and further face the other end side of the electrolytic cell spacers 8 and 18 from the tank chamber 8B.
Two slits 8A and 18A are formed.

The slits 8A and 18A are channels for flowing water in the tank chamber 8B to the other ends of the electrolytic cell spacers 8 and 18, respectively. The electrolytic cell spacers 8 and 18 are sealed and joined by sandwiching the diaphragm sheet 9 as will be described later.
A and 18A are diaphragm sheets 9 of the electrolytic cell spacers 8 and 18.
It is drilled on the side opposite to the side that touches. Water supply nozzle 10
Reference numeral 6 denotes a circular tube, and a tip end opening of a cut vertical in the axial direction is erected perpendicularly to the electrode plate 2 forming the side wall of the tank chamber 8B.

[0009]

However, in the prior art as described above, the tip end opening of the water supply nozzle 106 having a vertical cut in the axial direction is the tank chamber 8 as described above.
Since it is vertically attached to the electrode plate 2 forming the B side wall, the water introduced from the water supply nozzle 106 into the tank chamber 8B goes straight and traverses the tank chamber 8B, and the opposite electrode plate 12 is formed.
It collides with the wall surface and is diffused by this wall surface.

As a result, the flow rate of the water flow W11 passing through the slit 18A becomes extremely larger than the flow rate of the water flow W12 passing through the slit 8A, and for example, a state in which it is three times or more occurs. That is, it is difficult to keep the amount of water passing through both slits uniform, and there is a problem in that the amount of water flowing into the Yin and Yang chambers cannot be made uniform. For this reason, a large amount of water flow passes through the water flow path W11 along the surface of the electrode plate 12 at a high speed and reaches the discharge port while the electrolysis is not sufficiently electrolyzed by the voltage applied between the electrodes. As a result, the inflow water is not uniformly subjected to the electrolysis action of the electrode voltage, uneven electrolysis occurs, the pH value is not constant, and the electrolysis efficiency is lowered. Particularly, in the strongly acidic water generator, the above electrolysis unevenness is likely to occur because a large current is passed through the electrolytic cell.

The present invention has been made in view of the above-mentioned drawbacks of the prior art. A uniform and predetermined electrolysis efficiency can be obtained by equipping the water supply nozzle for making the amount of water flowing into the positive and negative electrode chambers in the electrolytic cell uniform. It is an object of the present invention to provide an electrolytic cell for a high-performance ion water generator that is obtained.

[0012]

In order to achieve the above-mentioned object, an electrolytic cell of an ion water generator according to the present invention is a tank chamber having a slit surface communicating with an anode chamber and a cathode chamber sandwiching a diaphragm. In an electrolytic cell of an ion water generator equipped with a water supply nozzle having a circular tubular introduction passage on a surface orthogonal to the slit surface and parallel to the diaphragm, a tank of the circular introduction passage of the water supply nozzle. It is characterized in that a water supply nozzle having a conical inner wall whose diameter gradually increases toward the tip side is provided at the chamber side tip.

[0013]

The electrolytic cell of the ionized water generator according to the present invention is orthogonal to the slit surface of a tank chamber having a slit surface composed of two passages respectively communicating with an anode chamber and a cathode chamber sandwiching a diaphragm, Further, when water is introduced into a water supply nozzle having a conical inner wall whose diameter is gradually increased toward the tip end, which is erected on the surface parallel to the diaphragm, the water flow that advances in the axial direction in the circular tubular introduction passage is the tip of the introduction passage. It collides with the conical inner wall of. Therefore, the flow path of the water flow can be changed, but since the diameter of the conical inner wall gradually increases toward the tip side, each water flow randomly changes its direction at different positions of the conical inner wall. As a result, the water flow is evenly distributed between the slits of the two passages that respectively communicate with the anode chamber and the cathode chamber. Furthermore, since the conical inner wall is convex, the water flow is dispersed at a wide angle on a plane perpendicular to the axis of the water supply nozzle. Therefore, even in each of the two slits, the water flow uniformly flows in each slit.

[0014]

The present invention will now be described in detail with reference to the embodiments of the present invention shown in FIGS. 1 to 3 of the accompanying drawings. FIG. 1 is a cross-sectional view illustrating an embodiment of an electrolytic cell of an ion water generator according to the present invention, FIG. 2 is an exploded perspective view (partial view) of the electrolytic cell of FIG. 1, and FIG. 1 of the water supply nozzle shown in FIG.
(A) front view of the water supply nozzle shown in FIG.
(C) AA sectional drawing and (d) perspective view are shown. The same parts as those of the above-mentioned conventional technique are designated by the same reference numerals, and the description thereof will be omitted.

1 and 2, an electrolytic cell 1 of an ion water generator according to the present invention has an anode chamber P formed by sandwiching a diaphragm sheet 9.
And slits 8A, 1 that communicate with the cathode chamber N, respectively.
A water supply nozzle 6 having a cylindrical introduction passage 6B is provided on a surface of the tank chamber 8B having a hexahedral shape in which 8A is disposed in the slit surface, the surface being orthogonal to the slit surface and parallel to the diaphragm sheet 9. The water supply nozzle 6 is equipped with a water supply nozzle 6 having a conical inner wall 6A whose diameter gradually increases toward the front end side at the front end on the tank chamber 8B side of the circular tubular introduction passage 6B.

When water is introduced into the water supply nozzle 6, the water flow W that advances axially in the circular tubular introduction passage 6B collides with the conical inner wall 6A at the tip of the introduction passage 6B. Since the conical inner wall 6A gradually expands in diameter toward the tip side, each water flow collides at different positions on the conical inner wall and is converted into a large number of random flow passages, as shown in the figure. As a result, the water flow paths W1 and W2 are changed to the slits 8A and 18A. As a result, the water flow paths W1 and W2 respectively flow into the two slits 8A and 18A which communicate with the anode chamber P and the cathode chamber N, respectively, and thus the two slits 8A and 1A.
Water flow is evenly distributed between 8A.

Further, since the conical inner wall 6A is convex, the water flow has a wide angle on the plane perpendicular to the axis of the water supply nozzle 6,
(B) WR1 to WR3, and further dispersed like WL1 to WL3. Therefore, the two slits 8
Even when each of A and 18A is composed of a plurality of parallel slits (shown in 8A of FIG. 3), the water flow is evenly distributed among the parallel slits.

In the electrolytic cell 1 of the present embodiment, the tap water flowing from the water supply nozzle 6 enters the tank chamber 8B, randomizes the water flow, and controls the water flow to be uniform in the width direction of the electrolytic cell 1. Then, after passing through the slits 8A and 18A and separated into both sides of the diaphragm sheet 9, the anode chamber P and the cathode chamber N formed between the diaphragm sheet 9 and the electrode plates 2 and 12 are separated.
By entering and renewing by contacting the electrode plates 2 and 12, acidic water or alkaline ionized water is generated with high efficiency, respectively, and is generated from the drain nozzle 3 or 13, respectively.

[0019]

As described above, the electrolytic cell of the ion water generator according to the present invention is a tank in which two slits, which communicate with the anode chamber and the cathode chamber sandwiching the diaphragm, are arranged in the slit plane. A water supply nozzle having a conical inner wall whose diameter gradually increases toward the tip side is erected on a surface of the chamber that is orthogonal to the slit surface and parallel to the diaphragm. When water is introduced into this water supply nozzle, the water flow that advances in the axial direction through the circular tubular introduction passage collides with the conical inner wall at the tip of the introduction passage. Since the diameter of the conical inner wall gradually increases toward the tip side, each water flow can change its flow path in many random directions at different positions of the conical inner wall. As a result, the water flow is evenly distributed between the two slits that respectively communicate with the anode chamber and the cathode chamber.

Further, since the conical inner wall is convex, the water flow is dispersed at a wide angle on the plane perpendicular to the axis of the water supply nozzle. Therefore, even when each of the two slits is formed as a plurality of juxtaposed slits, the water flow is evenly distributed to the juxtaposed slits. Therefore, the inflow water is uniformly subjected to the electrolytic action of the electrode voltage, and the uneven electrolysis is solved. In addition, since the pH value is constant, there is an effect that the electrolysis efficiency is improved. As described above, it is possible to provide an ionized water generator equipped with a high-performance electrolytic cell.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of an electrolytic cell of an ion water generator according to the present invention.

FIG. 2 is an exploded perspective view (partially) of the electrolytic cell of FIG.

3A is a front view of the water supply nozzle shown in FIG. 1, FIG.
It is a top view, (c) AA sectional drawing, (d) perspective view.

FIG. 4 is a cross-sectional view of an electrolytic cell of a conventional ion water generator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrolyzer 2 Electrode plate 3,13 Drainage nozzle 4,14 Terminal 5,15 Screw 6 Water supply nozzle 6A Cone wall surface 7,17 Spacer rubber 8,18 Spacer 8A, 18A Slit 8B Tank chamber 9 Separator sheet W1, W2 Water flow path

Claims (1)

[Claims] 1. A tank chamber having a slit surface communicating with an anode chamber and a cathode chamber sandwiching a diaphragm, respectively.
In an electrolytic cell of an ion water generator equipped with a water supply nozzle having a circular introduction path on a surface orthogonal to the slit plane and parallel to the diaphragm, a tank chamber side of the circular introduction path of the water supply nozzle. At the tip,
An electrolytic cell for an ionized water generator, comprising a water supply nozzle having a conical inner wall whose diameter gradually increases toward the tip side.