JPH09225464A - Storageing strongly electrolyzed water generating device and receiver therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a small quantity of a strongly electrolyzed water by supplying a high electric conductive water to an electrolytic cell through a solenoid valve opened at the time of energizing from a stock tank for previously mixing a raw water with sodium chloride. SOLUTION: The electric conductive water mixed with an alkali chloride compound having a fixed composition is stored in the stock tank 1 to make a device practicable. The highly electrically conductive water flowing out from the tank 1 flows in the electrolytic cell 5 through a water level sensor 3 and the solenoid valve opened at the time of energizing, is strongly electrolyzed and is discharged to a receiver placed inside the device from discharging ports 14 and 15 of a cathode section 8 and an anode section 10, respectively. The highly electrically conductive water therein is discharged from a waste water port 18 by connecting a drain cock 11 through a pipe line 12 from the water level sensor to the solenoid valve 4 opened at the time of energizing and a bottom pipe line 13 of the electrolytic cell 5 to the electrolytic cell side end of the solenoid valve 4 opened at the time of energizing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage type strong electrolyzed water generator which is not affected by the quality of raw water used.

[0002]

2. Description of the Related Art A negative electrode in a polar chamber separated by adding an electrolyte such as salt to raw water such as tap water at a fixed ratio and introducing it into a closed electrolytic cell and separating it through an ion-permeable diaphragm in the electrolytic cell. A direct current is passed between them to perform electrolysis and ion penetration of water, producing cathode water on the cathode side and anode water on the anode side, draining the cathode water, and disinfecting the anode water. There is a strong electrolyzed water generator used as.

It is well known that strong electrolyzed water is effective as disinfecting and sterilizing water. For example, JP-A-6-2927
In JP-A-11, the low pH anode water produced by adding salt to the raw water is said to be effective as disinfecting and sterilizing water. Moreover, since this strong electrolyzed water does not contain a sterilizing agent such as an organic sterilizing solution, it does not contain a harmful substance and has no residual agent, making it a reliable disinfecting and sterilizing water.

In order to continuously generate such strongly electrolyzed water, it is necessary to constantly supplement the raw water such as tap water with an electrolyte, for example, salt. It requires complicated operations such as addition in proportions.

Originally, the composition of raw water was not constant. Not only does it vary according to regional characteristics, that is, weather conditions in the region, but also momentarily varies according to seasons and time zones. Most of the raw water such as tap water originates from surface water such as rivers, and seawater evaporates into rainwater and is immersed in the ground. Therefore, the substance contained in seawater in the process of evaporation is mixed in with the evaporation or by scattering and is contained in the raw water. It also contains components eluted from rocks in the ground. Raw water and the like contain various ions of such origin, for example, anions such as chloride ions and sulfate ions, and cations such as sodium and iron. It is also well known to add chlorine for sterilization. A part of the added chlorine is dissociated to generate Cl ions and hypochlorite ions. These substances also dissolve in raw water, and their solubilities are constantly changing.

Even if the electrolyte is added to the constantly changing raw water at a constant ratio, the conductivity of the raw water is rarely fixed, and the electrolytic discharge water generated as a result of electrolysis is not fixed. Constantly changing. For this reason, O
A measuring instrument such as an RP meter or pH meter is provided to control the range of the desired degree of electrolysis with a manual or control circuit, and to use the water discharge in a predetermined range while discharging the water discharge other than the desired degree of electrolysis. There is. As described above, the conventional strong electrolyzed water generator is expensive because it is provided with various measuring devices, and it is difficult to use it for domestic use.

On the other hand, at home, for example, it is desired to use strong electrolyzed water that does not contain a chemical solution while being easily made, for example, for washing cutting boards and dishes, washing cloths and hands, sterilizing water for gargle, etc. There is.

[0008]

Therefore, in order to make the properties of the raw water constant, the present invention mixes the raw water with the salt in advance and stores the mixed high-conductivity water in a storage tank.
High-conductivity water is supplied to the electrolytic cell through a water level sensor that senses high-conductivity water flowing out of the tank and a solenoid valve that closes when not in use and opens when energized to generate strong electrolyzed water. At the same time, by providing a receiver mounting space in which the receiver for receiving the negative and positive water discharged from the electrolytic cell can be mounted in the generator, the stationary strong electrolyzed water suitable for relatively small use at home is used. It is intended to provide a generator.

[0009]

According to another aspect of the present invention, there is provided a storage type strong electrolyzed water generator according to the first aspect of the present invention, wherein highly conductive water obtained by mixing raw water with an alkali chloride compound to enhance electrolysis of the raw water is used as an ion permeable membrane. In the device for electrolyzing by introducing into the electrolytic cell for applying a DC voltage between the negative and positive electrodes of the cathode chamber having the negative electrode and the positive electrode chamber having the positive electrode inserted therein, the high conductivity water is stored in the tank. The high-conductivity water is supplied to the electrolyzer through the water level sensor and the open solenoid valve when energized, and is branched from the bottom of the electrolyzer and the conduit leading from the water level sensor to the open solenoid valve when energized. The pipeline is connected to a common drain valve.

The storage type strong electrolyzed water generating apparatus according to a second aspect of the present invention is characterized in that the open solenoid valve when energized is closed when not energized and is opened only when energized.

The storage type strong electrolyzed water generating apparatus according to claim 3 of the present invention is the storage type strong electrolyzed water generating apparatus according to claim 1, in which a receiver for receiving negative and positive water obtained by electrolysis is mounted. A receiver mounting space that can be placed is provided in the generating device.

The stored strong electrolyzed water producing apparatus according to a fourth aspect of the present invention is characterized in that it is provided with a hydraulically operated flow control valve for making the amount of electrolyte flowing out from the tank constant.

The receiver of the storage-type strong electrolyzed water producing apparatus according to claim 5 of the present invention is formed of an acid-resistant and alkali-resistant light-shielding member, and the water outlets 14 and 15 are penetrated through the lid of the receiver body 33. It is characterized in that a lid 34 provided with an opening 35 for allowing water to be discharged is formed, and further, a floating lid 36 which is floated by the inflow of strong electrolyzed water is provided in the receiver body portion 33.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, high conductivity water supplied to an electrolyzer is stored in a storage tank in a state where its conductivity is kept substantially constant by mixing raw water with a predetermined alkali chloride compound. Has been done. The presence or absence of the high-conductivity water discharged from the tank to the electrolytic cell is confirmed by a water level sensor provided in the lower portion of the tank, and a current corresponding to the flow rate of the pipe is applied between the negative and positive electrodes of the electrolytic cell. As a result, the electrolysis degree of the electrolytic solution discharged from the electrolytic cell becomes constant. Furthermore,
The open solenoid valve when energized between the water level sensor and the electrolyzer is closed when not energized or when the power is cut off, and is opened only when energized, so that the high conductivity water in the tank enters the electrolyzer only when energized. It is possible to discharge a predetermined amount of electrolyzed water to the receiver that is supplied and placed in the receiver placement space provided in the generator.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 and FIG. 2 are an explanatory view of the operation of a stationary strong electrolyzed water producing apparatus according to the present invention and a perspective view of essential parts.

Reference numeral 1 is a storage tank for high-conductivity water, and the high-conductivity water supplied to the electrolytic cell is produced by mixing a predetermined alkali chloride compound with raw water so that the electric conductivity thereof becomes substantially constant. For example, 100 to 1,00 in raw water such as tap water
Dissolve 0 ppm sodium chloride. The device is ready for use when such a high-conductivity water having a predetermined concentration is stored in the storage tank.

Reference numeral 2 is a strainer, and reference numeral 3 is a water level sensor. The water level sensor is for operating the device only when the high-conductivity water is present in the storage tank and for measuring the conductivity of the high-conductivity water, and is composed of two metal pieces facing each other. 4 is an open solenoid valve when energized, which is closed when de-energized and opened only when energized. Reference numeral 5 denotes an electrolytic cell which is divided by an ion-permeable diaphragm 6 and has a cathode chamber 8 into which a negative electrode 7 is inserted and an anode chamber 10 into which a positive electrode 9 is inserted. It is for electrolyzing the introduced high-conductivity water. Reference numeral 11 denotes a drain cock, which is connected to the pipe 12 from the water level sensor to the open solenoid valve when energized, the bottom pipe 13 of the electrolysis tank 5, and the end of the open solenoid valve 4 when energized which is located on the electrolysis tank side. Highly conductive water can be drained through the drain port 18. Reference numerals 14 and 15 denote water discharge ports of the cathode chamber 8 and the anode chamber 10, which are opened in the apparatus. A control circuit 16 receives an information signal from the water level sensor 3 and controls the energization of the open solenoid valve 4 and the electrolytic cell 5 when energized. Further, at least an operation switch of the apparatus, an indicator lamp, and the like are provided. 17 is an electrolytic cell 5
A transformer for powering a control system for applying current to the power source, the power source being supplied with commercial power. In addition, 19 is a gas vent pipe for preventing water discharge in the electrolytic cell due to siphon action, and it is also possible to open a hole from the electrolytic cell itself in addition to the configuration shown in the drawing.

Now, when a predetermined amount of high-conductivity water is stored in the storage tank 1 and the open solenoid valve when energized is opened, that is, when the electrolyzed water is generated, the high-conductivity water opens the solenoid valve 4 when energized. Through the bottom pipe 13 to the electrolytic cell 5 and electrolyzed by a direct current applied between the positive and negative electrodes, so that cathode water is discharged from the cathode chamber outlet, anode water is discharged from the anode chamber outlet, and the husband's outlet 14 and Water is discharged from 15. These are the receivers 31 and 32 of the husband and husband.
Can be received and used by

The anode water discharged in this state usually has a pH of 2.
8. It shows an oxidation-reduction potential (ORP) of about 1050, and functions well as disinfecting and sterilizing water. At this time, the cathode water discharged at the same time may be drained after being received in a container, but since it can ensure pH 12 or higher, it can be used for various applications requiring high pH, for example, as an acid neutralizing agent. In the present apparatus, the pH of the wastewater can be made neutral by mixing with the anode water and discharging the water.

When the high-conductivity water does not contain a predetermined salt content or when it is desired to empty the electrolytic cell, the high-conductivity water can be removed by opening the drain cock.

By the way, the above-mentioned high-conductivity water has a water pressure corresponding to the high pressure when the tank is full, and when the tank is almost empty, the high-conductivity water is almost unsuspended. Flow into. When the electrolyzer is operated with the same degree of electrolysis even when the tank is full or when the tank is almost empty, the electrolyzed water discharged from the electrolyzer becomes water that is against the initial purpose, and the bactericidal effect is There is a risk that no water will be discharged.

As a countermeasure against such a case, as described in Japanese Patent Application No. 6-230496 filed by the same applicant, the water level of the highly conductive water in the tank is measured from the outside of the tank to determine the water level of the tank. At the same time, an optimum voltage can be applied to the electrolytic cell, and the applied voltage can be adjusted by changing the applied voltage of the electrolytic cell. That is, a pair of electrodes are provided so as to be in close contact with the outer surface of the tank that stores high-conductivity water, a high-frequency measurement voltage is applied between the electrodes, and the degree of impedance change due to the change in the dielectric constant of the high-conductivity water in the tank. It is possible to measure the amount of highly conductive water present. In this case, since it is not necessary to put the sensor inside the tank, the electrode of the sensor is not attacked by salt water, and the water level can always be reliably measured in long-term use. Further, the anode water discharged from the electrolytic cell is sanitary.

Separately from this, the high conductivity water discharged from the tank can be made constant by the mechanical method shown in FIG.

In FIG. 3, the storage tank 1-1 is provided with a hydraulically operated flow control valve 21. The flow control valve 21 is provided with a needle valve 23 having a diaphragm 22 which is hydraulically operated at the bottom thereof via a resilient member 24. On the other hand, a pipe 12-1 that passes through the needle valve 23 from the bottom portion 25 in the tank is provided.
The electrolyte solution passing through is controlled by the conical contact surface 26 of the flow control valve 23. In addition, 27 is a packing member and 28 is a ventilation hole.

That is, when a large amount of highly conductive water is stored in the storage tank 1-1, the water pressure is applied to the diaphragm 22 and the needle valve 23 is pushed down against the elastic member 24. As a result, the gap between the conical contact surfaces 26 is almost eliminated, and the flow of the high-conductivity water passing through the pipe 12-1 is suppressed. On the contrary, when the electrolyte solution in the storage tank 1-1 is almost empty, no water pressure is applied to the diaphragm 22, the elastic member 24 is opened, and the needle valve 23 is opened.
Push up. As a result, the gap between the conical contact surfaces 26 widens, and the flow of the high-conductivity water passing through the pipe 12-1 increases. That is, the high-conductivity water passing through the pipe 12-1 can be automatically controlled by the amount of the high-conductivity water stored in the tank.

The strong electrolyzed water produced by the apparatus shown in FIGS. 1 and 2 becomes less effective when left in an open state for a long time. It is especially sensitive to air contact, light transmission and temperature. For this reason, it is desirable that the strong electrolyzed water produced by the above-mentioned device be used up as it is produced, or that the amount used is produced. However, excess strongly electrolyzed water may be generated. In such a case, it is desirable to store in a dedicated receiver.

FIG. 4 is a diagram showing a receiver used in such a case. The receivers are the cathode water receiver 31 and the anode water receiver 32.
It can be used in common.

In FIG. 4, the receiver 32 is entirely formed of an acid-resistant and alkali-resistant light-shielding member, and the receiver body 3
3, a lid 34 that can be opened and closed is formed. An opening 35 is provided at the center of the lid, and water can be discharged while the water discharge ports 14 and 15 are in a penetrating state. Further, a floating lid 36 made of Teflon hollow molding that floats when strong electrolyzed water flows in is provided in the receiver body portion 33, and strong electrolyzed water flows in through a through hole 37 opened in the center thereof. The floating lid 36 is the receiver body 3
3, the receiver barrel is freely moved up and down to a stopper 38 provided on the inner peripheral surface of the lower portion of the No. 3 according to the use of the strong electrolyzed water. An open lid 40 is also provided at the tip of the spout 39.

The strong electrolyzed water stored in such a receiver makes it possible to store the surplus strongly electrolyzed water relatively stably by reducing contact with air and light transmission as much as possible. .

[0030]

As described above, according to the present invention, the raw water and the salt are mixed in advance, and the storage tank capable of storing the raw water with a constant property and the high conductivity water flowing out from the tank are detected. The high level conductive water is supplied to the electrolytic cell through the open type solenoid valve that closes when the water level sensor is not used and opens when energized to generate strong electrolyzed water, and also receives negative and positive water discharged from the electrolytic cell. By providing the receiver with a receiver mounting space in which the receiver can be mounted, a small amount of strong electrolyzed water can be easily obtained at low cost.

Since the device having the above-mentioned configuration has a small number of parts and operates stably over a long period of time, it becomes possible to operate the device in a maintenance-free manner. Moreover, the entire apparatus can be made compact, and inspection and repair can be easily performed even in maintenance after installation.

[Brief description of drawings]

FIG. 1 is an operation explanatory view of a stationary strong electrolyzed water producing apparatus according to the present invention.

FIG. 2 is a perspective view of a main part of a stationary strong electrolyzed water generator according to the present invention.

FIG. 3 is a diagram showing a hydraulically operated flow control valve for making the amount of electrolyte solution discharged from the tank of the present invention constant.

FIG. 4 is a diagram showing a receiver of the present invention.

[Explanation of symbols]

 1 Storage tank 2 Strainer 3 Water level sensor 4 Solenoid valve open when energized 5 Electrolyzer 11 Drain cock 12 Piping 13 Bottom piping 14 Cathode chamber spout 15 Anode chamber spout 16 Control circuit 21 Water pressure operation type flow control valve 32 Receiver

Claims (5)

[Claims] 1. A high-conductivity water prepared by mixing an alkaline chloride compound into raw water to increase the electrolysis of the raw water, is provided between a cathode chamber in which a negative electrode divided by an ion-permeable diaphragm is inserted and an anode chamber in which a positive electrode is inserted. In a device for electrolyzing by introducing a DC voltage between the positive and negative electrodes into an electrolytic cell, the high-conductivity water is stored in a tank, and the high-conductivity water is passed through a water level sensor and a solenoid valve open when energized to form an electrolytic cell. Storage type, characterized in that the pipes of the husband and the electrolyzer, which are branched from the bottom of the electrolytic cell and the water level sensor to the solenoid valve open when energized, are connected to a common drain valve. Strong electrolyzed water generator. 2. The stored strong electrolyzed water generator according to claim 1, wherein the open solenoid valve when energized is closed when not energized and is opened only when energized. 3. The storage-type strong electrolyzed water generator according to claim 1, wherein a receiver mounting space in which a receiver for receiving negative and positive electrode water obtained by electrolysis can be mounted is provided in the generator. A storage-type strongly electrolyzed water generator characterized in that 4. The storage-type strong electrolyzed water generation apparatus according to claim 1, further comprising a hydraulically operated flow control valve for making the amount of electrolyte flowing out from the tank constant. Stationary strong electrolyzed water generator. 5. A cover 34 is formed of an acid-resistant and alkali-resistant light-shielding member, and a lid of the receiver barrel 33 is provided with an opening 35 through which the water outlets 14 and 15 can be discharged. Further, the receiver body portion 33 is provided with a floating lid 36 which floats by the inflow of the strong electrolyzed water.