JP2619644B2 - Electrolytic ionic water generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Application Field of the Invention] The present invention uses a chemical solution (hereinafter, simply referred to as "chemical solution") added to raw water when electrolyzing water to prepare alkaline ionized water and acidic water. Normal electrolysis operation can be continued by introducing each electrode into a predetermined electrode chamber and switching the polarity of the electrodes.
The present invention relates to an electrolytic ionized water generator whose value is adjusted.

[Problems to be solved by the invention] A water electrolyzer that generates water by electrolyzing water into alkaline ionized water and acidic water is periodically cleaned because calcium carbonate and the like adhere to the cathode side during use. Therefore, equipment such as a cleaning pipe is required, and the regular electrolytic water generation operation must be stopped during the cleaning.

In addition, the conventional electrolysis unit of this type of electrolyzed water generator has one raw water supply port and is commonly connected to a pair of electrode chambers, so that a specific chemical solution is added to each electrode chamber. Therefore, a pair of chemical liquid passages must be provided separately from the water supply port, and the passage in this case is necessarily narrow, so that it is difficult to make the chemical liquid concentration uniform.

Furthermore, in this type of electrolyzed water generator, separate throttle valves are provided in each discharge path of alkaline water and acidic water from the electrolyzer to adjust the flow ratio and control the PH value of electrolyzed water. In the method, the number of members was increased and adjustment was troublesome.

The present invention has been made to solve these problems, and the main object is to change the polarity of the electrode to perform the electrolysis operation, thereby eliminating the need for cleaning, and changing the intake port of the electrolytic water even when the polarity is changed. There is no need to provide an electrolytic ionic water generating apparatus that can adjust the flow ratio of alkaline water and acidic water with one touch, and can separately introduce necessary chemicals together with raw water into each electrode chamber. is there.

[Means for solving the problem]

The main object of the present invention is to dispose electrodes of opposite polarity composed of an anode electro-degradable material capable of withstanding electrolysis of water as a cathode and an anode, and to separate the two electrodes into a cathode chamber and an anode chamber by an electrolysis diaphragm. And a pair of raw water supply ports for separately supplying raw water to the pair of electrode chambers via a forked raw water supply circuit on one side of the electrolytic tank, and the pair of electrolytic chambers on the other side of the electrolytic tank. A pair of electrolyzed water discharge passages respectively communicating with each other, a water electrolysis device provided with a polarity switching switch for switching the polarity of both electrodes of the electrolytic cell, and a pair of electrolyzed water discharge passages of the electrolysis device, A flow path switching valve device that switches the flow paths of the pair of discharge paths to a pair of intake ports on the downstream side thereof, and the pair of electrolytic water discharge paths of the electrolytic device, or the pair of raw water supply ports. For the two-way raw water supply circuit Is location, can be accomplished by electrolytic ion water generator apparatus characterized by having a flow ratio adjustment device for changing the flow ratio of each pair of flow paths.

[Function of the invention]

When raw water is supplied from a pair of water supply ports of an electrolysis device, and one electrode is used as an anode and the other is used as a cathode and a DC voltage is applied between the two electrodes, the water in the electrolytic cell is subjected to the electrolytic action and the electricity of the diaphragm (ion exchange membrane). It is separated into alkaline water and acidic water by osmosis and sent out from a pair of electrolytic water discharge channels.

In the electrolytic ionic water generating apparatus of the present invention, since both electrodes of the electrolytic apparatus are made of an anode electro-resistant material that can withstand use not only as a cathode but also as an anode in water electrolysis, the polarity is switched every predetermined time. Can be driven. In this case, calcium carbonate and the like attached to the cathode side are dissolved and removed in the treated water by polarity switching,
The cleaning liquid is automatically made by a normal electrolytic generation operation after the electrode is switched.

In addition, since two raw water inlets respectively communicating with a pair of electrode chambers in the electrolytic cell are formed independently on the water supply side of the electrolysis apparatus, these water inlets or two systems of water supply connected to these water inlets are provided. By adding a predetermined chemical solution to the tube,
A predetermined chemical solution is introduced into a predetermined electrode chamber together with raw water.

The polarity and the polarity of the water discharged from the pair of electrolyzed water discharge channels also reverse the alkalinity and acidity. However, the flow channel switching valve devices provided in these pair of drainage channels correspond to each of the electrolyzed water discharge channels. The alkaline water and the acidic water are always discharged from the concentric water intake regardless of the polarity switching.

Further, a flow ratio adjusting device for changing the flow ratio of the pair of flow paths in conjunction with the pair of electrolytic water discharge paths or the pair of water supply ports of the electrolysis apparatus is provided. They are relatively opened and closed, whereby the flow ratio is adjusted to control the PH value of the electrolyzed water.

(Example of the invention)

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes an electrolysis device, 2 denotes a flow path switching valve device for switching the flow of a pair of electrolytic water discharge passages of the electrolysis device, and 3 denotes a flow ratio adjusting device for changing a flow ratio of the pair of flow channels.

In the electrolytic cell 1, a pair of electrodes 4a and 4b having different polarities are disposed to face each other, and an electrolytic membrane (ion exchange membrane) 5 is provided between the electrodes 4a and 4b.
An electrolytic cell 6 partitioned into a pair of electrode chambers 5a and 5b by a water supply port for supplying raw water to one side of the electrolytic cell 6.
A water supply member 8a provided with 7a and 7b, and the electrode chamber 5 on the other side.
a and 5b, respectively, a pair of electrolyzed water discharge channels 9a and 9
A drain member 8b provided with b is fitted and integrally connected by a bolt 10. The apparatus of the present invention is characterized in that the water supply member 8a is provided with two water supply ports 7a and 7b which are respectively connected to a pair of electrolysis chambers 5a and 5b in the electrolytic cell 6 independently of each other. Use a material for anode electrolysis that can withstand both cathode and anode use in normal electrolysis for both electrodes 4a and 4b, and switch the polarity of the voltage applied to both electrodes alternately to generate normal (regular) electrolyzed water Is made possible.

The anodic electrolysis resistant material mentioned here means an electrode material that can withstand not only use as a cathode but also as an anode in electrolysis of water. For example, ferrite, magnetite, ceramics, and other ceramics can be used to pour gold. Ceramics that can be used as a positive electrode, such as ceramics that have been subjected to a surface treatment of platinum and other materials mixed with a conductive material; titanium;
Titanium alloy; Titanium with noble metal plating; or alloy material that prevents the anodic collapse of the electrode surface by the action of the charge of the ions of the alloy so that the anode is consumed by the alloy. it can.

It should be noted that an electric circuit 11 for voltage supply for switching the polarity of the electrodes.
Is provided with a polarity switching switch 12.

The reason why two independent water supply ports 7a and 7b are provided in the water supply member 8a of the electrolysis apparatus 1 is that a chemical solution is mixed in advance into raw water before entering the electrode chamber, and the chemical liquid is supplied together with the raw water to a desired electrode chamber in the tank. This is to make it possible.

By providing the raw water supply unit having such a structure, a pair of water supply ports 7a, 7b of the electrolytic unit are connected to the forked raw water supply circuits 13a, 13b of the water supply pipe 13, and the raw water supply circuit of the chemical liquid supply device 14 is connected to the supply line 7a, 7b. Thus, it can be joined to the forked raw water supply circuits 13a, 13b or the water supply ports 7a, 7b downstream thereof. That is, a desired chemical solution can be mixed in advance into the raw water sent to each electrode chamber and sent together with the raw water.

In the drawing, 15 is a chemical introduction pipe, 16 is a chemical liquid flow path switching valve, 17 is a crank, 18 is a valve driving device such as a motor, 19a and 19b detect valve positions, and the driving device 18 is detected by a detection signal. A detection device such as a limit switch to be controlled, and a driving device 18 of the chemical liquid flow path switching valve 16 is an electric circuit 20 or a voltage supply electric circuit of the electrolytic unit by a timer or the like.
It may be synchronized with the polarity switching switch 12 of 11. Thus, the pair of electrolyzed water discharge passages 9a and 9b of the electrolysis apparatus 1 discharges alkaline ionized water from one side and acid water from the other, but the electrodes 4a and 4b of the electrolysis apparatus 1 can perform electrolysis operation by switching the polarity. The discharge paths 9a and 9
The electrolyzed water discharged from b is reversed in alkalinity and acidity. This is troublesome because it is necessary to check which one is switched each time when taking water, and when the drain pipe is connected to the water storage tank, the alkaline water and the acidic water are mixed. . To prevent this, the apparatus of the present invention switches the polarity of the electrodes to the discharge paths 9a and 9b, that is, one of the water intake sides regardless of whether the water flowing out of the discharge paths 9a and 9b is alkali ion water or acidic water. The flow path switching valve device 2 is provided so that alkaline water can always be taken out from the water intake 9a 'and acid water can always be taken out from the other water intake 9b'.

That is, the flow path switching valve device 2 is provided in a cylindrical casing 23 having a pair of introduction portions 21a, 21b connecting the discharge paths 9a, 9b, and drainage pipes 22a, 22b for separately discharging alkaline water and acidic water. The slide valve 24 for switching the flow path is fitted in a liquid-tight and slidable manner. The pair of introduction portions 21a and 21b are provided at a constant interval in the axial direction of the casing 23. In addition, one drainage pipe 22a of the pair of drainage pipes 22a and 22b
Is provided in the middle of the introduction portions 21a and 21b of the casing 23, and the other drainage pipe 22b has a bifurcated connection with the casing 23, and the bifurcated portions 22b (1) and 22b
(2) is communicated with both ends of the casing 23, respectively.

The slide valve 24 has a structure in which two valve bodies 24b, 24c are fixed to a rod 24a at a predetermined interval, and the valve bodies 24b, 24c are reciprocated by the slide valve 24, and each of the introduction portions 21a, 21b Are alternately and interlockedly switched from a state of communication with one drainage pipe 22a to a state of communication with the other drainage pipe 22b via the casing end.

The driving method of the slide valve 24 may be manual, but is preferably operated by a driving device 25 using a motor 25a as shown in the figure. Further, a detector 26 such as a limit switch for detecting the position of the slide valve 24 is provided near the slide valve 24.
The motor 25a can be controlled by the signal. Further, by synchronizing the motor 25a with the polarity switching switch 12 of the electrolyzer 1, the polarity of the electrolysis device 1 is switched and the flow switching valve device 2 is simultaneously controlled. The flow path switches (or vice versa)
You can also do so. Incidentally, in the illustrated embodiment, the tip of the slide valve 24 and the motor 25a are connected to the crank 25b and the cam 25b.
The slide valve 24 is electrically connected so as to reciprocally drive the slide valve 24, and a detector 26 such as a limit switch for detecting the position of the slide valve 24 is provided near the crank 25b.

The driving means is not limited to the embodiment shown in the figure, but can be operated by, for example, a solenoid.

Alternatively, the polarity switching switch 12 and the flow path switching valve device 2 may be automatically switched at regular intervals using a timer.

The electrolytic ionized water generator of the present invention further controls the flow rate of water introduced into each electrode chamber of the electrolytic cell 6 or the flow rate of water discharged from the electrolytic chamber to control the PH value of the electrolytic water. A flow ratio adjusting device 3 is provided on the water supply side or the drainage side of the electrolysis apparatus 1.

In the embodiment shown in the figure, the flow ratio adjusting device 3 is provided on the drain side of the electrolysis device 1 and a pair of passages 27a and 27b are provided to communicate with the drain pipes 22a and 22b of the flow path switching valve device 2, respectively. A pair of valve holes 29 corresponding to these passages
The coaxial valve 30 formed with a and 29b is rotatably fitted.

The pair of valve holes 29a and 29b are formed at different angles with respect to the pipe direction of the corresponding discharge path, and
When one of the valve holes rotates in a direction to increase the opening degree of the first passage (for example, the alkaline ionized water passage) in a relative positional relationship with a, 27b, the other valve hole is moved to the second passage in conjunction with this. The opening of a passage (for example, an acidic ionized water passage) is narrowed.
Reference numeral 30 'denotes a dial for rotating the coaxial valve 30.

FIG. 3 shows another embodiment of the flow ratio adjusting device used in the present invention. In this embodiment, the flow ratio adjusting device has lateral valve holes 29a and 29b corresponding to the respective passages 27a and 27b. A pair of geared rotary valve bodies 31a, 31b forming
The valve holes 29a, 29b of 1b are constituted by a parallel shaft type flow ratio control valve operatively engaged via the outer peripheral gears 32a, 32b such that they have different angles with respect to the corresponding passages 27a, 27b. I have. That is, when the lever 33 is rotated in the direction of the arrow, the valve hole 29b of one rotary valve element 31b increases in opening degree, and the other rotary valve element 31b opens.
The valve hole 29a of 31a is narrowed and the opening degree is reduced.

In the embodiment shown in the figure, the flow ratio adjusting device 3 is provided on the drain side of the electrolytic device 1. In the present invention, however, two water supply ports 7a are respectively connected to the water supply member of the electrolytic device 1 and each of the internal electrode chambers. , 7
Since b is provided, the flow ratio adjusting device 3 can be provided on the water supply side of the electrolytic device 1 via the water supply ports 7a and 7b.

In the embodiment shown in the drawings, the case where a cylindrical electrolyzer is used is exemplified, but it is of course possible to use a flat electrolyzer. Further, although a single electrolysis unit has been described in the drawings, the present invention is also applicable to an electrolysis apparatus in which a plurality of electrolysis units are collectively used and each drainage channel is shared.

 Next, the operation of the present invention will be described.

Raw water is separately introduced into each of the electrode chambers 5a, 5b from a pair of water supply ports 7a, 7b of the electrolysis apparatus 1 by a pumping means such as a pump (not shown). When adding a chemical, fill the specified chemical
It is mixed with raw water at 7a, 7b or upstream and introduced together.

The water introduced into the electrolytic cell 6 is electrolyzed by applying a voltage to both electrodes 4a, 4b, and is converted into alkaline ionized water and acidic water ionized water and sent out from the pair of electrolytic water discharge passages 9a, 9b.

The electrolysis apparatus 1 is operated by switching the polarity of the electrodes at predetermined time intervals (for example, every 24 hours). Therefore, the discharge paths 9a and 9b also have the alkaline water and the acidic water whose paths are reversed. By operating, the communication state of the pair of water intake ports 9a 'and 9b' to the pair of discharge paths 9a and 9b is switched to each other, so that even if the polarity of the electrodes is switched, the alkaline water and the acidic water are initially set to the predetermined water intake. Will be discharged from the mouth.

When the dial of the flow ratio adjusting device 3 is operated, the flow rates of the pair of drainage channels relatively change, and the PH value of the electrolyzed water changes.

〔The invention's effect〕

As described above, in the present invention, the water supply section of the electrolysis apparatus is provided with two water supply ports which respectively communicate with the electrode chambers, so that the chemical solution can be introduced together with the raw water into the predetermined electrode chambers. Therefore, it is not necessary to provide a dedicated passage for the chemical in the water supply member, and the chemical can be added uniformly.

In addition, since the electrolysis operation can be performed by switching the polarity of the electrolysis apparatus, it is not necessary to wash the electrolysis tank, which is extremely advantageous in terms of the cost and operation rate of the apparatus. In this case, the flow path switching valve guarantees a constant flow path for the electrolytic water regardless of the polarity switching.

Further, the PH value of the electrolyzed water can be controlled by adjusting the flow rate ratio of the alkaline water and the acidic water thus generated.

[Brief description of the drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the apparatus of the present invention, and FIG.
FIG. 3 is a cross-sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a cross-sectional view showing another specific example of the flow ratio adjusting device used in the present invention. ………………………………………………………………………………………………………………………………… ……………………………………………………………………………………… Presenting Room
12: Polarity switch, 13: Water supply pipe, 13a, 13b
... bifurcated raw water supply circuit, 14 ... chemical solution supply device, 15 ... chemical solution introduction pipe, 18, 25a ... motor, 19a, 19b, 26 ... detector, 24 ... slide valve, 24b, 24c ... valve Body, 29a, 29b ……
Valve hole, 30 ... Coaxial valve, 31a, 31b ... Rotary valve element,

Claims (2)

(57) [Claims] Claims: 1. As a cathode and an anode, oppositely-polarized electrodes made of an anodic electrotolerant material capable of withstanding electrolysis of water are arranged facing each other,
A pair of raw water that separates the two electrodes into a cathode chamber and an anode chamber by an electrolytic membrane to form an electrolytic cell, and supplies raw water supplied from a forked raw water supply circuit to one side of the electrolytic cell to the pair of electrode chambers. A water supply port is provided, a pair of electrolytic water discharge passages respectively communicating with the pair of electrolytic chambers are provided on the other side of the electrolytic cell, and a polarity switching switch for switching the polarity of both electrodes of the electrolytic cell is provided. And a pair of electrolyzed water discharge passages provided in the electrolysis device, and corresponding to the switching of the electrode polarity of the polarity switching switch, the flow paths of the pair of discharge passages are provided to a pair of downstream water intakes. And a pair of electrolytic water discharge paths of the electrolysis apparatus, or a forked raw water supply circuit communicating with the pair of raw water supply ports, and a flow rate ratio of each pair of these flow paths. Changing flow ratio adjusting equipment Electrolytic ion water generator apparatus characterized by having bets 2. The electrolytic ionic water generating apparatus according to claim 1, wherein the polarity switching switch of the applied voltage and the flow path switching valve device are linked.