JPS59213491A - Continuous conditioning device for potable water - Google Patents

Abstract

PURPOSE:To obtain a small-sized continuous conditioning device for potable water by disposing plural anode bars at an equal interval in a cylindrical electrolytic reaction cell, and providing the anode bars so as to be enclosed with ion permeable diaphragms. CONSTITUTION:A DC voltage is impressed between anode bars 12 and a cathode 16 and thereafter city water is supplied through a water feed port 17 into a reaction cell 11. The city water is admitted to the cathode 16 side and is admitted dividedly through the holes of means 15 for attaching diaphragms 13 to the bars 12. The water ascends along the anode bars while receiving an electrolytic effect until the water arrives at discharging ports 18, 19 at the top of the vessel 11. The city water is electrolytically conditioned during this time, so that the cathode water is converted to alkali water to have an increased mineral component such as calcium. The cathode water in particular contacts efficiently with the cathode 16 packed in the spacing between the membranes 13 and the cell 11 and therefore the reduction of the residual chlorine owing to such electrolysis is effected. The effect of dechlorinating the cathode water is thus admitted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous drinking water conditioning device that separates and generates cathode water and anode water by electrolysis or electrophoresis.

Conventionally, there have been devices of this type as shown in FIGS. 1 to 3. Regarding the figure, ■ is a cylindrical electrolytic reaction tank, 2 is this reaction tank, an anode rod placed in the center of 1, 3 is 1 @ surrounding the electrode rod 2,
4 is a cathode which surrounds the enclosure of this diaphragm 3 and has a large number of communication holes 5; 6 is a water supply for supplying tap water or the like from below into the reaction tank 1; 1", 7
8 is a cathode water outlet provided at one side of the reaction tank 1, 9 is a diversion port through which tap water from the water supply port 6 flows into the diaphragm 3, and 10 is an anode rod. This is a power source that applies voltage to the cathode 2 and the cathode 4.

In the apparatus configured as described above, tap water supplied into the reaction tank 1 from the water supply port 6 is electrolyzed, and this tap water contains trace amounts of mineral components and chlorine for sterilization. Metal ions such as sodium, potassium, and calcium are collected on the 4g side, 1t'5 ions such as chloride ions and lignite RF ions are collected on the anode side, and hydroxide ions generated by electrolyzing the water in the electrolytic cell on the cathode side. It was considered an alkaline mineral water with a lot of anions and few other anions. By the way, continuous type drinking water conditioning equipment requires a larger processing capacity per unit time than batch type drinking water conditioning equipment.
~Therefore, it is required to efficiently use a large amount of electricity within a short period of time. However, when the electrode surface is drawn, the current density is 7+), which leads to destruction of the electrode material. For this reason, in the conventional device, the anode rod 2 is made thicker to increase the surface area, and the cathode A is provided with a passage hole so that the cathode water can be taken in from the outlet 8 without drifting.

Since the conventional continuous drinking water conditioning device is constructed as described above, increasing the thickness of the expensive anode material is not desirable from an economical and weight standpoint. Further, if the cathode material has a mesh structure, residual chlorine can be effectively removed by electrolytic reaction, but this cannot be expected with the cathode having the communication holes of the conventional device.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above. A plurality of anode rods are arranged at equal intervals in a cylindrical electrolytic reaction tank, and the anode rods are surrounded. In addition to installing an ion-permeable diaphragm that allows water to flow to the rod side,
By filling the space between the diaphragm and the electrolytic reaction tank with a mesh-like or wool-like insoluble cathode material, we have created a highly efficient continuous drinking water conditioning device that is small and lightweight, and can effectively remove residual chlorine. is intended to provide.

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 4 and 5, reference numeral 11 denotes a cylindrical electrolytic reaction vessel, and in this example, a cylindrical type is shown, but other rectangular shapes may be used. Reference numeral 12 denotes columnar anode rods arranged at equal intervals within the reaction tank 11, and each anode rod is electrically connected. Reference numeral 13 denotes an ion-permeable diaphragm that surrounds each anode rod 12, and the upper and lower ends of this diaphragm 13 are supported by fittings 14 and 15. This is so that water is diverted to the anode rod 12 side.

What, 1? , the diaphragm 13 may surround each anode rod 12 as shown in FIGS. 7 and 8. 16+;L
The space between the diaphragm 13 and the reaction tank 11 is filled with an insoluble cathode material made of a material such as mesh or wool-like stainless steel.

(2) 7 is a tap water supply port provided at the bottom of the electrolytic reaction tank 11, 18 is a cathode water outlet provided at the top of the reaction tank 11, and 19 is an anode water outlet.

Next, the operation will be explained in detail. First, anode rod 12 and cathode 1
6, and then tap water is supplied into the reaction tank 11 from the water supply port 17. In other words, tap water is the cathode 16
As the liquid flows to the side, the flow of the diaphragm 13 is diverted from the hole in the device 15 to the anode rod 12 side, and rises while being subjected to electrolytic action, and eventually reaches the outlet 1, 8, and 19 at the upper part of the reaction tank 11. During this time, the tap water undergoes electrolysis adjustment and becomes 1-kai polar water (nitroalkaline water) with an increase in mineral content such as calcium. In particular, 1@polar water is a cathode 1 filled in the space between the partition 13 and the reaction tank 11.
6, the residual chlorine is reduced by electrolysis, and the descaling effect of the cathode water is also enhanced.

As described above, according to the present invention, a plurality of anode rods are arranged at equal intervals in an electrolytic reaction tank, and an ion-permeable diaphragm is provided surrounding the anode rods and through which water flows toward the anode rods. In addition, by filling the space between the diaphragm and the reaction tank with a net-like or wool-like cathode material, it becomes possible to increase the electrolytic surface area of the anode rod and increase the amount of electricity that can be energized. In addition, we have improved the contact efficiency of cathode water with cathode material.
) Residual chlorine is reduced and the cathode water has a descaling effect. Furthermore, the device according to the present invention has advantages such as being small and having a low weight ratio.

[Brief explanation of drawings]

Figure 1←1. Cross-sectional view of a conventional continuation type drinking phase water adjustment device, 2
(', 2 and 3 are cross-sectional views of FIG. 1 having different shapes, FIG. 4 d is a sectional view of the continuous drinking water conditioning device according to the present invention, and FIG. 5 is a cross-sectional view of the continuous drinking water conditioning device according to the present invention. Figure 8 is a cross-sectional view showing another arrangement of the anode rod and the diaphragm. 11... Electrolytic reaction 4J, 12... Anode rod, 1; 3
...Diaphragm, 14.15...Both mounting, 16...Cathode material, 17-...Water supply 1], 18...Cathode water outlet,
19... Anode water extraction [''. In addition, in the figures, the same reference numerals do not indicate the same or equivalent parts.

Claims (1)

[Claims] A plurality of anode rods made of insoluble anode material are arranged at equal intervals in a cylindrical electrolytic reaction tank, and an ion-permeable diaphragm surrounding the anode rods allows water to flow toward the anode rods. A continuous drinking water conditioning device 0 characterized in that the space between the diaphragm and the electrolytic reaction tank is filled with a mesh-like or wool-like insoluble cathode material.