JP2005262195A - Electrolytic water generator provided with mechanism for removing gas generated in electrolysis - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrolytic water generator capable of obtaining consistently stable electrolytic water with a gas removing valve by solving the following problem: hydrogen gas and oxygen gas generated in the electrolysis of water are fed together with discharge of the electrolytic water, and are accumulated in the midway of a water discharge pipe to produce a water passage resistance, which makes unstable the balance in the amount of water between acidic electrolytic water and alkaline electrolytic water, thereby making unstable the water quality of the electrolytic water. <P>SOLUTION: Check valves 13, 14 are installed in the midway of the water discharge pipe discharging the acidic electrolytic water and the alkaline electrolytic water generated in an electrolytic vessel 9, to provide such a function that gases generated by electrolysis are respectively discharged to the outside atmosphere. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

  The present invention relates to an electrolyzed water generator that generates electrolyzed water by electrolyzing raw water supplied into an electrolyzer.

  Conventionally, as this type of electrolyzed water generating device, raw water from an external source is continuously supplied to the electrolyzer through a water supply pipe, and a predetermined voltage is applied between the paired electrodes in the electrolyzer. Electrolyzed water is generated by electrolyzing the raw water of the lever. In order to promote this electrolysis, a diaphragm pump sucks concentrated salt water stored in the electrolytic auxiliary liquid tank through a salt water coupler, sends it to a water supply pipe, and injects it into raw water. In addition, the electrolyzed water generator detects the current value flowing between the electrodes by the current sensor, and at the time of generation, if the detected current value is lower than the current target value corresponding to the desired amount of electricity, the electrolysis voltage is increased, If it is higher than the current target value, the detected current value is kept substantially at the current target value by keeping the electrolysis voltage low.

  In such an electrolyzed water generator, hydrogen gas is generated on the cathode side and oxygen gas is generated on the anode side during electrolysis generation. When salt is used to promote electrolysis, chlorine gas is generated on the anode side. In order to increase the ability to generate electrolyzed water, the use of electrolytes such as sodium chloride and potassium chloride as electrolysis aids increases the setting of the electrolysis current, and the amount of gas generated is proportional to the electrolysis current value. To increase. Conventionally, most chemical reactions that occur during electrolysis have a structure in which the generated gas is removed from the electrolytic cell as a protection of the electrode plate in order to react on the surface of the electrode plate.

  In such an electrolyzed water generator, it is possible to protect the electrode of the electrolyzer, but in weak electrolysis of water, hydrogen gas and oxygen gas are present as fine particles in the water, so the generated electrolyzed water is discharged from the water. The fine particle gas nucleates in the middle of the pipe, and becomes a large bubble and exists inside the pipe. Therefore, when strong acidic electrolyzed water or strong alkaline electrolyzed water used for sterilization is discharged, electrolyzed water and gas are alternately discharged.

Problems to be solved by the invention

  However, in such an electrolyzed water generating apparatus, since electrolyzed water and gas are alternately discharged, the pressure inside each pipe becomes non-uniform, and the ratio of the amount of water becomes unstable. If the electrolysis current value is controlled to be constant while the water amount ratio is unstable, the quality of the electrolyzed water becomes unstable, which causes a problem when using electrolyzed water.

  The present invention has been made in order to cope with the above-mentioned problem, and the purpose thereof is to eliminate the instability of the water volume by providing a means for degassing in the middle of the discharged water after the generation of electrolyzed water. It is an object of the present invention to provide an electrolyzed water generator that can reliably prevent instability.

Means for solving the problem

  In order to achieve the above object, the constitutional feature of the present invention is to generate electrolyzed water by electrolyzing raw water supplied from an external supply source with a predetermined voltage applied between a pair of accommodated electrodes or two or more pairs of electrodes. In the electrolyzed water generating apparatus equipped with an electrolyzing tank, fine particle gas is generated by providing a gas vent valve in the water discharge piping in the water of the cathode water generated on the cathode side and the anode water generated on the anode side. It is intended to keep the pressure inside the pipe uniform by nucleating and releasing large bubbles with a vent valve.

  Moreover, you may respond | correspond to long piping by providing the said gas vent valve two or more places.

  In addition, when the above electrolyzed water generator is mixed with an additive for promoting electrolysis and used at a high electrolysis current, and when used at a low electrolysis current without using an additive, the amount of generated bubbles is equal. Rather, the installation location and quantity of the gas vent are adjusted according to the length of the pipe and the installation status.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of the present invention. In this embodiment, an electrolyzed water generator is schematically shown.

  The configuration of the electrolyzed water generator is composed of a water channel system component including the electrolyzer 9 and an electrical system component including the electrolysis power source 18. In addition, an electrolytic auxiliary liquid tank 12 is provided outside.

  The inside of the electrolytic cell 9 is partitioned into a pair of electrode chambers by a diaphragm plate 11, and both electrode chambers are respectively connected to an external raw water supply source (for example, water supply) via a water supply pipe 1. On the way, a salt water coupler 17 connected to the electrolytic auxiliary liquid tank 12 is connected as will be described later. Thereby, the raw water (tap water) from the water supply pipe 1 is supplied to both electrode chambers as diluted salt water into which the concentrated salt water from the salt water coupler 17 is injected. A pair of electrodes 10a and 10b are accommodated in each electrode chamber so as to face each other, and a DC voltage from the electrolytic power source 18 is applied between the electrodes 10a and 10b so that the diluted salt water supplied as described above is supplied. Is electrolyzed to generate electrolyzed water. An acidic electrolyzed water outlet 15 and an alkaline electrolyzed water outlet 16 are connected to each electrode chamber of the electrolytic cell 9, and the generated electrolyzed water has an acidic electrolyzed water outlet 15, which is the tip thereof, and alkaline water. It is discharged from the electrolyzed water outlet 16 to the outside.

  The water supply pipe 1 is provided with a pressure reducing valve 4 and a water supply electromagnetic valve 3 which is an on-off valve. The pressure reducing valve 4 reduces the pressure of raw water pumped from an external supply source and keeps it within a predetermined pressure range. The water supply electromagnetic valve 3 is controlled to be opened and closed (on / off) by an electric control circuit, and supplies raw water from an external supply source to the electrolytic cell 9 through the water supply pipe 1 in an open state.

  The salt water coupler 17 is connected to the discharge port (discharge side) of the metering pump 8 connected to the flow rate adjusting valve 7 downstream of the water supply electromagnetic valve 3. The suction port of the metering pump 8 is inserted from the upper part of the electrolytic auxiliary liquid tank 12 through the salt water coupler 17.

  The metering pump 8 is of a tube type and discharges the sucked fluid while crushing the tube, and the discharge amount is controlled by changing the voltage of the pump motor by an electric control circuit. During the generation of the electrolyzed water, the metering pump 8 sucks concentrated salt water from the electrolysis auxiliary liquid tank 12 and discharges the concentrated salt water to the flow rate adjusting valve 7 and injects it into the raw water. It is supplied to the electrolytic cell 9.

  A flow rate sensor 6 is provided in the middle of the water flow pipe. The flow rate sensor 6 detects the flow rate of the raw water, and when the amount of water is small, the output of the electrolysis power supply 18 is stopped and the flow rate is abnormal. Display status.

  The check valves 13 and 14 are provided in the middle of the water discharge pipe for discharging the acidic electrolyzed water and alkaline electrolyzed water generated by the electrolyzer 9, and each has a function of releasing gas generated by electrolysis to the outside air. ing.

  Details of the degassing mechanism will be described below with reference to the partial views of FIGS. An electrolytic tank water inlet 20 is provided in the lower part of the electrolytic tank 9, and an acidic water acidic water outlet 21 and an electrolytic tank alkaline water outlet 22 are provided in the upper part. The electrolytic cell acidic water outlet 21 is branched into the acidic electrolytic water outlet 15 and the check valve 14 by cheese 23. Similarly, the alkaline water outlet 22 of the electrolytic cell branches into the alkaline electrolytic water outlet 16 and the check valve 13 at the cheese 23. When the water enters, the flow sensor 6 is activated, and in the electrolytic cell, water enters from the electrolytic cell inlet 20 to start electrolysis, and gas is generated. The generated gas is the electrolytic cell acidic water outlet 21 and the electrolytic cell. It goes out together with the electrolyzed water from the tank alkaline water outlet 22. “Since the electrolytic cell acidic water outlet 21 and the electrolytic cell alkaline water outlet 22 are common functions, they will be described with reference to FIG. 3.” Furthermore, the electrolytic water containing gas reaches the cheese 23. The alkaline electrolyzed water outlet 16 is structurally disposed below the cheese 23, and the check valve 13 is disposed above. The alkaline electrolyzed water is output downward, and the gas is released upward to be separated into steam and gas, and is degassed.

The invention's effect

Since the present invention is configured as described above, the following effects can be obtained.
It is possible to release dissolved gas components in water generated by electrolysis from the midway of the water discharge pipe to the outside air by the check valves 13 and 14 provided in the midway of the water discharge pipe of the acidic electrolyzed water and alkaline electrolyzed water generated by the electrolyzer 9. it can.

  Since the dissolved gas in the middle of the water discharge pipe can be released to the outside air, the pressure generated in the pipe is made uniform between the acidic electrolyzed water (anode side) and the alkaline electrolyzed water (cathode side), and the water volume ratio of each other does not collapse. Therefore, it is possible to ensure the amount of electricity that matches the water flow rate, and to improve the stability of the generated water quality.

  In addition, even in the difference in the amount of electricity generated by the addition of an electrolysis accelerator, even in the difference in the amount of gas generated by electrolysis, by providing one or more degassing valves such as check valves in the middle of the water discharge pipe, Can be released to the outside air.

It is a flowchart of the electrolyzed water generating apparatus which concerns on embodiment of this invention. It is a front view of the fragmentary figure of the degassing structure of this invention. It is a side view of the fragmentary figure of the degassing structure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply pipe 2 Strainer 3 Water supply solenoid valve 4 Pressure reducing valve 5 Filter 6 Flow rate sensor 7 Flow rate adjustment valve 8 Metering pump 9 Electrolyzer 10a, 10b Electrode plate 11 Diaphragm plate 12 Electrolysis auxiliary liquid tank 13, 14 Check valve 15 Acidic electrolyzed water Water outlet 16 Alkaline electrolyzed water spout 17 Salt water coupler 18 Electrolytic power source 19 Exhaust port 20 Electrolyzer water inlet 21 Electrolyzer acid water outlet 22 Electrolyzer alkaline water outlet 24 Cheese

Claims (3)

In an electrolyzed water generator comprising an electrolyzer that electrolyzes raw water supplied from an external supply source by a predetermined voltage applied between a pair of housed electrodes or two or more pairs of electrodes and generates electrolyzed water, the electrolyzed water generator is generated on the cathode side. An electrolysis generator, characterized in that a degassing valve is provided in each of the pipes in the middle of a water discharge pipe for the cathodic water and the anode water generated on the anode side. 2. The electrolyzed water generator according to claim 1, wherein the degassing valve includes one or more degassing valves. 2. The electrolyzed water generator according to claim 1, further comprising a pump for adding an electrolysis promoting auxiliary agent.

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