JPH10309581A - Electrolytic cell of ionized water generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent contact of a diaphragm with an electrode plate by setting a water feed passage to the specified number of electrolytic compartments so that the water supply pressure to the compartments contg. the frame of the diaphragm is lowered. SOLUTION: The diaphragms 5 and 7 are mounted so that the crosspieces 20 of the frames 16 are abutted on an anode plate 6. A groove 21 for supplying water to two couples of electrolytic compartments facing the anode plate 6 from a water passage holes 19 is formed on both ends of the frames 16 approaching the water supply port 13 and the generated water discharge ports 14 and 15. Further, a groove 22 is formed to send the electrolytic acidic water to the discharge port 14. The diameter, number of holes, etc., of the water passage holes are set so that the feed water pressure to the electrolytic compartment is made lower than the feed water pressure from the water passage grooves 11 to the electrolytic compartment. Consequently, the diaphragm 18 is slightly curved toward the electrolytic compartment by the differential pressure to prevent its contact with the cathode plate 9. Meanwhile, contact of the diaphragm 18 with the anode plate 6 is also prevented by the crosspieces 20 of the frame 16.

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 ionic water generating apparatus for generating alkaline ionized water and acidic water by electrolyzing tap water or the like.

[0002]

2. Description of the Related Art In an electrolytic cell for generating alkaline ionized water and acidic water by electrolyzing tap water or the like, for example, Japanese Patent Application Laid-Open No.
As shown in Japanese Patent No. 270784, a diaphragm is formed by supporting a diaphragm on a frame, and the diaphragm is disposed between electrode plates of an electrolytic cell.

On the other hand, in the above case, the diaphragm and the frame are integrated by injection molding or the like in order to position the diaphragm substantially at the center in the thickness direction of the frame. In this method, a molding machine or the like is relatively expensive. However, there is a problem that the cost is increased.

In order to reduce the manufacturing cost, for example, a diaphragm is integrally bonded to one side of the frame by heat welding or the like. In this case, the frame is positioned on one side of the diaphragm. However, if the frame is not located on the other surface, and the gap between the electrodes is set to be small to improve the electrolysis efficiency, the diaphragm contacts the electrode plate on the side where the frame is not located during generation, and the electrolysis performance is reduced. There is a problem.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to prevent a contact between a diaphragm and an electrode plate in a case where a diaphragm is welded to one surface of a frame.

[0006]

SUMMARY OF THE INVENTION According to the present invention, an electrolytic cell is constructed by joining a pair of cases having recessed storage grooves on opposing surfaces at their peripheral edges, and each of the cases is formed from the bottom of the groove in the storage groove. One electrode plate and a diaphragm are sequentially laminated and the other electrode plate is disposed between the diaphragms to form two pairs of electrolytic chambers, and the diaphragm is formed by a frame and one surface of the frame. A water supply passage for supplying tap water or the like to the electrolytic chamber is set so that the water supply pressure to the electrolytic chamber where the frame of the diaphragm is located is reduced.

Further, according to the present invention, the diaphragm is configured such that the frame is located on the surface in proximity to the other electrode plate, and the frame is provided with a water hole such as tap water to the electrolytic chamber where the frame is not located. The water supply pressure from these water holes is set to be lower than the water supply pressure to the electrolytic chamber where the frame is located.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described first with reference to FIGS. 1 and 2. Reference numeral 1 denotes an electrolytic cell used for an alkali ion water generator or the like. The cathode plate 4, the diaphragm 5, the anode plate 6, the diaphragm 7, and the cathode plate 8 are sequentially stacked and housed between these cases.

FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a sectional view taken along line BB of FIG.
9, a plurality of protrusions 10 are provided upright at both ends in the longitudinal direction, and a plurality of water passage grooves 11 are formed between the protrusions. ..By stacking and storing the cathode plates 4 and the like therebetween, the cathode plates 4 and 8
And two pairs of electrolytic chambers 12... Between the anode plate 6 and the diaphragm members 5 and 7.

The one projection 10 of the case 2 is also provided.
A water supply port 13 connected to the water source is opened outside the
··· The generated water outlets 14 and 15 are opened outside of.

On the other hand, as shown in FIG. 5, the diaphragm members 5 and 7 are fitted into fitting grooves 17 and 17 on one surface of resin frames 16 and 16, respectively.
And the diaphragms 18 are integrally formed in the fitting grooves by heat welding or the like, and the water supply ports 13 of the frames 16 are formed.
A plurality of water holes 19 for supplying tap water or the like flowing from the water supply port to the electrolytic chambers 12a on both surfaces of the anode plate 6 are formed at predetermined end intervals at the longitudinal end of the side. ing.

The diaphragms 5 and 7 are mounted so that the bars 20... Of the frames 16 and 16 contact the anode plate 6.
At both ends close to the water supply ports 13 and the produced water outlets 14 and 15, water supplied to the electrolysis chambers 12a and 12a facing the anode plate 6 is supplied with water passing through the water holes 19 and. Groove 21 and electrolysis chamber 12
a, and a formed water flow groove 22 for guiding the acid water generated in 12a to the generated water outlet 14 is integrally formed.
Means that the water supply pressure to the electrolysis chambers 12a, 12a is
The hole diameter, the number of holes, and the like are set so as to be lower than the pressure of water supplied to the electrolysis chambers 12 and 12 for supplying more water.

Reference numeral 23 denotes a packing interposed between the joining surfaces of the cases 2 and 3, which are located between the frames 16 and 16 of at least portions of the diaphragms 5 and 6 which are close to the generated water outlets 14 and 15. The seal portion 24 for sealing the portion is formed integrally, and between the seal portion and the packing body, a plurality of water holes 25 are passed through which the generated water flows to the generated water outlet 15. I have.

By supplying a predetermined DC voltage between the cathode plates 4 and 4 and the anode plate 6 at the same time as tap water is continuously supplied from the water supply port 13, an arrow is shown in FIG. The water supplied to the electrolysis chambers 12, 12a between the cathode plate and the anode plate is electrolyzed to produce alkaline ionized water and acidic water, which are discharged from the produced water outlets 14, 15. .

At this time, the water supplied from the water supply port 13 passes through the water supply grooves 11 and is partially supplied to the electrolytic chambers 12 and 12, and another part is supplied with the water supply holes 19 and the water supply grooves. 21 ・ Electrolysis room 12
Water is supplied to a and 12a.

Since the water supply pressure in the electrolytic chamber 12a is set lower than the water supply pressure in the electrolytic chamber 12, the diaphragm 18
Is slightly curved toward the electrolysis chambers 12a, 12a due to the differential pressure to prevent contact between the diaphragm and the cathode plates 9, 9;
The contact between the diaphragm 18 and the anode plate 6 is also prevented by the bars 16.

[0017]

According to the structure of the present invention, the diaphragm is formed by welding the diaphragm to one surface of the frame, and the water supply passage to the electrolytic chamber has a low water supply pressure to the electrolytic chamber where the frame is located. With this setting, the diaphragm is slightly bent toward the electrolytic chamber where the frame is located due to the differential pressure between the electrolytic chambers, thereby reliably preventing contact between the diaphragm and the electrode plate due to the flow of water supplied to the electrolytic chamber. It is possible to prevent the electrolytic performance from being lowered due to the contact and the adhesion of scale.

Further, according to the structure of the present invention, a water supply hole for supplying water to the electrolytic chamber where the frame is not located is provided in the frame of the diaphragm, and the diameter of the water supply hole and the like are determined by adjusting the water supply pressure from the water supply hole. By setting it to be lower than the water supply pressure to the electrolytic chamber where the frame is located, the differential pressure can be reduced with a relatively simple structure without providing a pressure adjustment orifice in the case forming the electrolytic cell, for example. Can be set.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a vertical sectional view taken along line AA in FIG. 2;

FIG. 4 is a vertical sectional view taken along line BB in FIG. 2;

FIG. 5 is an exploded perspective view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrolyzer 2 Case 3 Case 4 Cathode plate 5 Diaphragm body 6 Anode plate 7 Diaphragm body 8 Cathode plate 9 Storage groove 12 Electrolysis chamber 16 Frame 18 Diaphragm 19 Water hole

Claims (2)

[Claims] An electrolytic cell is formed by joining a pair of cases having storage grooves recessed on opposing surfaces at peripheral edges thereof, and forming one of an electrode plate and a diaphragm from a groove bottom in the storage grooves. Are sequentially laminated, and the other electrode plate is disposed between
A pair of electrolytic chambers is formed and the diaphragm is composed of a frame and a diaphragm welded to one surface of the frame, wherein a water supply passage for supplying tap water or the like to the electrolytic chamber includes the diaphragm. An electrolyzer for an ion water generator, wherein the water supply pressure to an electrolysis chamber in which a body frame is located is set to be low. 2. The diaphragm is configured such that a frame is located on a surface adjacent to the other electrode plate, and a water flow hole for tap water or the like is provided on the frame where the frame is not located. 2. The electrolytic cell according to claim 1, wherein the water supply pressure from the water holes is set lower than the water supply pressure to the electrolytic chamber in which the frame is located.