JP2001225071A - Head type electrolytic acidic water maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head type electrolytic acidic water maker having a simple structure, easy to carry and capable of freely setting treatment quantity. SOLUTION: In the head type electrolytic acidic water maker wherein water to be electrolyzed forming acidic water by electrolysis is electrolyzed while allowed to flow down by a head, the area of the minimum cross-sectional area part of flow routes of water to be electrolyzed and electrolytic water is set to 0.03-79 mm2 and formula: 0.05<=V/(S×H)<=0.5 is set when the quantity of water to be electrolyzed is V cm3, the average cross-sectional area of a tank of water to be electrolyzed is S cm2 and the head, from the lower end of the minimum cross-sectional area part, when water to be electrolyzed is introduced into the tank of water to be electrolyzed in a quantity of V cm3, to the surface of water to be electrolyzed is H cm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolyzed acidic water generator for producing electrolyzed water having a pH of 3 to 7 for sterilization, disinfection, sterilization, and astringent with a simple structure and high reproducibility.

[0002]

2. Description of the Related Art A method for producing electrolyzed water, which produces chlorine compounds by electrolyzing water containing sodium chloride, has been used for many purposes since ancient times. For example, it is generally known that electrolytic acid water generated by electrolysis is useful in fields such as agriculture and food. In particular, in recent years, due to the breadth of the antibacterial spectrum of electrolytic acidic water and its excellent safety, its use in the medical field, for example,
Cleaning and disinfecting (disinfecting) the skin surface for the purpose of skin care for areas with rough skin such as atopy, hot flashes, acne, and baby diaper rash. Use for bacteria (disinfection) is being considered. Such electrolytic acid water is obtained by adding a solute that produces ions by dissolution, for example, sodium chloride, potassium chloride, magnesium chloride, calcium carbonate, etc., and electrolyzing it to increase the electric conductivity of the water to be electrolyzed. Can be Further, by using water to which a pH adjuster is added, electrolytic acid water having a pH in a preferable range can be obtained without providing a diaphragm between the anode and the cathode during electrolysis.

[0003] As described above, electrolytic acid water is spreading to ordinary households because of its wide use. The conventional electrolyzed acidic water generator is connected to a tap water pipe, and is a stationary large type that adjusts a large amount of electrolyzed water, or a relatively small and constant amount of water to be electrolyzed by immersing the electrodes in the electrolyzed water. A batch type that decomposes is used. When a stationary type is installed in a general household, it is bulky and occupies a large area, which is inconvenient. Also, in the case of the batch type, a constant amount must be prepared regardless of the amount to be used, and since the electrodes are treated in a state of being immersed in a large amount of electrolyzed water, the processing efficiency is reduced. bad. Furthermore, in the method of obtaining acidic water by an electrolysis method having a diaphragm, the alkaline water produced at the same time is wasted, and it is necessary to electrolyze more than the required amount of water to be electrolyzed.

[0004] When used in ordinary households, it is desirable that the device be easy to carry with a simple structure and be capable of freely setting a processing amount.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a head type electrolytic acidic water generator for producing electrolytic acidic water for sterilization, disinfection, sterilization, and astringent which is easy to carry with a simple structure.

[0006]

The present invention is achieved by the following constitutions (1) to (6).

(1) An electrolyzed water storage section for storing electrolyzed water that generates acid water by diaphragm-free electrolysis, an electrolyzer, an electrolyzed water outflow nozzle, a power supply, a current control means, and an electrolyzed acid water In the electrolyzed acidic water generator composed of a container, the electrolyzed water reservoir is substantially above the electrolyzer, and the electrolyzed water is electrolyzed while flowing down the electrolyzed water to the electrolyzer by a head. It is a head type electrolytic acid water generator that generates water.

(2) The minimum flow passage cross-sectional area in the flow path of the electrolyzed water and the electrolyzed acidic water is 0.03
The head type electrolytic acid water generator according to the above (1), which has a size of up to 79 mm ² .

(3) The capacity of the electrolyzed water reservoir is Vcm
³ , the average cross-sectional area of the electrolyzed water storage section is Scm ² , and the electrolyzed water liquid level is measured from the lower end of the minimum flow path cross-sectional area when the electrolyzed water is charged into the electrolyzed water storage section at Vcm ^3. Head to Hc
In the case of m, the dropping type electrolytic acidic water generator according to the above (1) or (2), wherein 0.05 ≦ V / (S × H) ≦ 0.5.

(4) The minimum flow path cross-sectional area is 0.07 to 2
The head type electrolytic acid water generator according to any one of the above (1) to (3), which is 0 mm ² .

(5) The minimum flow path cross-sectional area is 0.2 to 7 m
It is (1) to m ² and a drop-electrode electrolytic acid water generator (3).

(6) On the liquid flow surface of the electrode plate of the electrolytic cell, the electrode length a in the direction perpendicular to the gravitational direction and the electrode length b in the gravitational direction have the following relationship (1) to (5). Head type electrolytic acid water generator. a> b

[0013]

Embodiments will be described in more detail below.

[0014] The head type electrolytic acid water generator of the present invention comprises an electrolyzed water storage section for storing electrolyzed water that generates acid water by diaphragmless electrolysis, an electrolyzer, an electrolyzed water outflow nozzle, and a power supply. , Current control means and an electrolytic acidic water container.

[0015] The conventionally used electrolyzed water generator has a fixed amount liquid sending means such as a pump, so that it is easy to set electrolysis conditions in the electrolyzing section so as to obtain a predetermined effective chlorine concentration. there were. The present invention is a continuous type (electrode surface in an electrolytic cell) that does not have an active liquid sending means such as a pump and can efficiently perform electrolysis, in order to provide an electrolyzed water generation device that is simplified in structure and convenient to carry. (Electrolysis is carried out while flowing the water to be electrolyzed), so that the water to be electrolyzed flows through the electrolytic cell only by a natural head. Further, the present invention does not use a diaphragm in order to provide a simple structure.

Further, the present invention is to reduce the flow rate of the electrolyzed acidic water in order to satisfy the conditions in which an effective concentration of chlorine can be generated and the treatment is completed in a short time and which can be easily used in ordinary households. The area of the minimum flow path cross-sectional area of the flow path of water and electrolyzed water is controlled, and the area of the minimum flow path cross-sectional area is 0.03 to 79 mm ² . It is known that the flow velocity of a liquid is affected by the length, cross-sectional area and head of the flow path. If it is smaller than 0.03 mm ² , the processing time becomes longer, which is inconvenient to use. 79mm ²
If it is larger, the processing speed will be faster, but the device must be designed for the higher processing speed in order to achieve an effective chlorine concentration. In order to increase the voltage, it is necessary to increase the size of power supply means such as dry batteries,
It is still large and inconvenient for home use. INDUSTRIAL APPLICABILITY The present invention can be easily used in ordinary households by specifying the area of a narrow portion of a flow path of electrolyzed water and electrolyzed water. The area of the minimum flow path cross-sectional area is 0.0
It is more preferably 7 to ²⁰ mm ² , and 0.2 to 7 mm ^2.
mm ² is more preferable.

Further, it is preferable that the minimum flow path cross-sectional area is disposed in a flow path of the electrolyzed water. When the flow path of the electrolyzed water has the minimum flow path cross-sectional area, the flow velocity changes immediately after the last electrolyzed water passes through the minimum flow path cross-sectional area, and the electrolysis conditions in the electrolytic cell change. Because.

Further, according to the present invention, the capacity of the electrolyzed water reservoir is Vcm ³ , and the average sectional area of the electrolyzed water reservoir is Sc.
m ² , when the head from the lower end of the minimum flow path cross-sectional area to the surface of the electrolyzed water when the electrolyzed water is Vcm ^{3 in the} electrolyzed water reservoir is 0.05 cm, 0.05 ≦ V / (S × H)
≦ 0.5. Here, the average cross-sectional area is the sum of the horizontal cross-sectional areas of the electrolyzed water reservoir when all the horizontal planes of the length in the direction of gravity of the inner surface of the electrolyzed water container are cut in a horizontal plane. The value is divided by the length in the direction.
By adopting this condition, even when the amount of electrolyzed water stored in the electrolyzed water storage unit fluctuates, the effective chlorine concentration of the electrolyzed water generated and obtained in the electrolyzed acidic water container does not significantly change. When the head is the driving force, it was thought that the tip of the electrolytic water outflow nozzle should be used as a measurement standard for the head H,
As a result of our investigation, it has been found that it is better to use the lower end of the minimum channel cross-sectional area.

Further, in the present invention, the electrode length a in the direction perpendicular to the direction of gravity and the electrode length b in the direction of gravity have a relationship of a> b on the liquid flow surface of the electrode plate of the electrolytic cell. Preferably, the ratio a / b between a and b is from 1.01 to 30, more preferably from 1.1 to 10. When conducting electrolysis by flowing the electrolyzed water over the electrode surface, the electrolysis efficiency is usually improved by increasing the length of the electrode plate in the flow direction of the electrolyzed water and increasing the contact time between the electrode and the electrolyzed water. Although it is considered that the water to be electrolyzed flows through the surface of the electrode plate by the head of the present invention, the electrolytic efficiency is better when the length in the direction of gravity, which is the flow direction due to the head, is shorter than the length in the vertical direction. It has been found to improve. When electrolyzing water to be electrolyzed, which generates acidic water by electrolysis, a gas such as hydrogen is generated on the surface of the electrode, and depending on the structure of the electrolytic cell, the gas stays between the anode and the cathode. When the shape of the electrode satisfies the above condition, the generated gas is less stagnant than in the case of using an electrode plate in which b is larger than a, and stable electrolytic acid water can be prepared. Generation efficiency can be improved. The electrode length a is 10 to 15
0 mm is preferable and 20 to 80 mm is more preferable. The electrode length b is not particularly limited, but is preferably 1 to 50 mm, more preferably 3 to 30 mm, in order to reduce the size of the device.

The electrolyzed acidic water container of the present invention stores electrolyzed water flowing out from an electrolyzed water outflow nozzle, and is freely detachable from the electrolyzed acidic water generator main body.
It is preferable that the lid is covered with a suitable water leakage preventing means such as a screw cap or a spray nozzle, and that only the electrolytic acid water container can be carried. Therefore, it is preferable that the electrolytic acidic water container has a thread groove that can engage with the threaded cap. Further, it is preferable that the electrolyzed acidic water container has a contact portion in which a discharging means such as a spray nozzle for spraying and / or spraying the stored electrolyzed water can be freely attached and detached. Examples of the discharging means of the present invention include a piston type using piston movement in a cylinder and a method of discharging a liquid in a bottle by pressing a pusher to pressurize the inside of the bottle. It is preferable because it is simple.

The capacity of the electrolytic acidic water container 4 is 1
0 to 500 ml is preferable, and 10 to 150 ml is more preferable. More preferably, the volume is 30 to 100 ml. If it is less than the lower limit, it is insufficient as a normally used amount,
If the amount is larger than the upper limit value, it is not preferable because it is difficult to store it in portable means such as a handbag or a bag, which is inconvenient.

Here, at least one chloride is required for the electrolyzed water which is electrolyzed in the electrolytic cell having no diaphragm and generates acidic water. In addition, at least one pH adjuster is used. By having a pH adjuster, the electrolyzed water can be converted to a preferable pH by using a diaphragm electrode, which has a simple structure.
Can be adjusted to H.

The chloride is preferably at least one selected from the group consisting of sodium chloride, calcium chloride, potassium chloride and magnesium chloride, and more preferably sodium chloride. Sodium chloride has no deposits on the electrodes and is very safe when used on the skin.

The pH adjuster is at least one selected from hydrochloric acid, succinic acid, acetic acid, tartaric acid, citric acid, trans-aconitic acid, potassium hydrogen phthalate, sodium hydrogen maleate, or a mixture thereof. It is preferable to use a mixture of an acid and sodium hydroxide, and a mixture of an organic acid such as citric acid and sodium citrate, acetic acid and sodium acetate, and a sodium salt thereof. Above all, it is more preferable to use succinic acid, acetic acid, or a mixture of these organic acids and their sodium salts, in which the activity of active chlorine generated by electrolysis has a low degree of decrease in activity over time.

The electrolyzed water storage section of the present invention is used by pouring an amount of electrolyzed water to be treated from the outside. An individual container in which the electrolyzed water is measured and stored in advance is attached to the electrolyzed water storage section. And those that communicate with the electrolytic cell. Also,
An electrolyzed water supply container containing an amount of electrolyzed water several times the capacity of the electrolyzed water storage portion is connected to the electrolyzed water storage portion, and the electrolyzed water supply container is removed from the electrolyzed water supply container by a single treatment amount. It may be transferred to the electrolyzed water storage section and subjected to electrolytic treatment. Further, the electrolyzer and the electrolyzed water reservoir may be separated via a connecting pipe for communicating the electrolyzed water.

The electrolyzed water storage section of the present invention, the individual container,
And the material of the electrolyzed water supply container is not particularly limited, for example, natural rubber, butyl rubber, styrene butadiene rubber, rubber such as nitrile butadiene rubber, polyvinyl chloride, polyethylene, polypropylene, polyolefin such as EVA, PET, Polyester such as PBT, polyurethane, polyamide, silicone, polyester elastomer, polyamide elastomer, thermoplastic elastomer such as styrene-butadiene-styrene copolymer, nylon, aluminum sheet, or a combination of two or more of these as appropriate Or a hard container made of polypropylene, polyethylene, polyethylene phthalate, or the like.

The method in which the electrolyzed water is continuously passed through the electrolytic cell to conduct electrolysis is preferable because electrolysis can be efficiently performed in a short time.

As the power supply means of the present invention, it is preferable to use a dry battery so that the generator can be easily used in ordinary households and can be easily carried. For example,
Preferred are primary batteries such as alkaline batteries, manganese batteries, and lithium batteries, and preferred rechargeable secondary batteries are lithium secondary batteries, nickel cadmium batteries, and nickel hydrogen batteries.

Further, the electrolyzed water obtained by electrolyzing the water to be electrolyzed is
The temperature is preferably pH 3 to 7 at 25 ° C, more preferably pH 4 to 6.5, and pH 4.5 to 5.5.
Is more preferred. This is because the use of electrolytic acidic water in this pH range increases the proportion of hypochlorous acid (HOCl), which is excellent in bactericidal action, in the presence of a protein.

The temperature of the electrolyzed water at the time of preparation and use is as follows:
0 to 60 ° C is preferable, 5 to 50 ° C is more preferable, and 1
0-40 degreeC is more preferable. If the temperature is lower than the above-mentioned temperature, there is a possibility that a phenomenon of freezing of water may occur.

One embodiment of the head type electrolytic acid water generator of the present invention will be described with reference to the drawings. FIG. 1 is a front view having a partially cut-out portion according to one embodiment of the present invention. FIG. 2 is a sectional side view of the embodiment of FIG. FIG. 3 is a block diagram of the electric system of the present invention. Electrolytic acidic water generator 1 of the present invention
The electrolyzed water tank 4, which is an electrolyzed water reservoir, an electrolyzed water tank lid 41, an electrode 51, an electrode case 52,
A switch 9, a dry battery 92 as a power source,
, An outflow nozzle 82, a main body 11 having a spray nozzle holder 33, an electrolytic acidic water bottle 2 as an electrolytic acidic water container, and a spray nozzle 3. Further, the electrode 5,
The switch 9, the dry cell 6, and the opening / closing means 7 are connected.

The bottom of the electrolyzed water tank 4 has a continuous portion with the electrolyzer 5, and is designed so that the electrolyzed water stored in the electrolyzed water tank 4 continuously flows into the electrolyzer 5. I have. Therefore, the bottom of the electrolyzed water tank 4 is slightly inclined toward a continuous portion with the electrolytic cell 5.

The electrolyzer 5 has an electrolyzed water tank 4 at its upper part.
On the other hand, a liquid sending pipe 6 having an outflow hole 54 at the lower end thereof is connected. In the electrolytic cell 5, two electrode plates 51, 51 are arranged to face each other. One of the two electrode plates 51 is an anode and the other is a cathode. The number of electrode plates in the electrolytic cell 5 is not limited to two,
A large number of anodes and cathodes may be alternately arranged. The electrode plate has an end 53 extending to the outside of the electrode case 52, and is connected to electric wiring.

The liquid feed pipe 6 connected to the outlet hole 54 at the lower end of the electrolytic cell is connected to the outlet nozzle 8 at the other end. Opening / closing means 7 is provided in the liquid feed pipe 6, and the liquid passage is opened / closed in conjunction with a power switch 9 to control the flow of electrolyzed water and electrolysis. The liquid sending pipe 6 may be made of a plastic or a metal material. However, when the flow of the electrolyzed water is controlled together with the opening / closing means 7, a material suitable for the mechanism of the opening / closing means 7 may be selected.

The power switch 9 of the electric circuit that energizes the electrode 51 is electrically or / and physically connected to the opening / closing means 7. When the switch 9 is turned on, the opening / closing means 7 is opened and the electrode 9 is opened. Electrolytic current flows through 51, and when switch 9 is off, opening / closing means 7 is in a closed state, and no electrolytic current flows through electrode 51.

The type of the opening / closing means 7 is not particularly limited, and may be a manual type such as a stopcock type, a cam type, a roller clamp type, or an electric type such as an electromagnetic valve, an electric clamp or a solenoid. When the electrolyzed water is injected into the electrolyzed water tank 4 with the opening / closing means 7 open, the electrolyzed water flows down without being electrolyzed. It is more preferable to use

When the opening / closing means 7 and the power switch 9 are electrically connected, the opening / closing means 7 is set to be closed when the power switch 9 is off, and the power switch 9 is turned on. At the same time, the current control means 91 controls the opening / closing means 7 to be in the open state. For example, when a solenoid composed of a coil and a plunger is used, the liquid feed pipe 6 between the electrolytic cell 5 and the outflow nozzle 8 is made of a soft plastic as shown in FIG. 2, and the plunger is urged by a spring. When the liquid supply pipe is closed and closed, and the power switch 9 is turned on,
Simultaneously, when the coil is energized, the solenoid operates, and the plunger can open the liquid feed pipe 6 against the force of the spring.

When the connection between the opening / closing means 7 and the power switch 9 is physically performed, for example, the electrolytic cell 5 and the outflow nozzle 8
The liquid supply pipe 6 is made of a soft plastic, and a portion for sandwiching the liquid supply pipe 6 and a part for opening the liquid supply pipe 6 are provided on an internal extension of the power switch 9 which is turned on by pressing the switch. Is pulled out, the liquid feeding pipe 6 is closed at the pinching portion, and the liquid supply pipe 6 is positioned at the open part when the power switch 9 is turned on, that is, when the power feeding switch 6 is pushed in. , Can be in an open state. Needless to say, the connection between the opening / closing means 7 and the power switch 9 is not limited to the above-described embodiment.

When all the electrolyzed water in the electrolyzed water storage container 4 flows down, the electrolysis is terminated. At this time, the opening / closing means 7 and / or means for closing the energizing circuit of the electrode 51 include:
When the electrolysis current is controlled at a constant current, the electrolysis voltage is detected, and when the electrolysis voltage exceeds a predetermined value, energization of the electrodes is stopped and the opening / closing means 7 is closed at the same time. Since the capacity of the storage container 4 is fixed and the falling speed is almost constant, the time when the falling is completed after the switch 9 is turned on is estimated, and the opening / closing means 7 may be closed after a certain time. After stopping the current, the opening / closing means 7 may be closed after a certain time.

When the opening / closing means 7 and the power switch 9 are physically linked, the electrolyzed water tank lid 41 can be prevented from opening when the opening / closing means 7 is open. Conversely, if the power switch 9 is turned off and the opening / closing means 7 is not in the closed position, the next electrolyzed water cannot be injected because the electrolyzed water tank lid 41 cannot be opened. The electrolyzed water does not flow without being electrolyzed.

The outflow nozzle 8 is connected to the lower end of the liquid sending pipe 6. The outflow nozzle 8 has a constricted portion 81, which constitutes the minimum flow path cross-sectional area in this embodiment. The flow rate of the electrolyzed water is adjusted by the constricted portion 81. The minimum flow path cross-sectional area may be in any of the electrolyzed water storage section 4, the electrolysis tank 5, the transition section 42 between the electrolyzed water storage section and the electrolysis tank, the liquid feed pipe 6, and the outflow nozzle 8. In order to adjust the flow-down condition until the last electrolyzed water flows down, it is preferably formed in a downstream portion of the electrolytic cell 5.

In this embodiment, a spray nozzle 3 having a spray function, which is in contact with the electrolytic acidic water container 2, is used, and a spray nozzle holder 33 for locking the spray nozzle 3 is provided.

The operation of the present invention will be described with reference to examples.
First, confirm that the power switch 9 is in the off state, open the electrolyzed water tank lid 41, pour electrolyzed water (not shown) into the electrolyzed water tank 4 in an appropriate amount, for example, 50 ml. Close the lid 41. In this embodiment, the electrolyzed water is filled up to the electrolytic cell 5 by injecting the electrolyzed water. At this time, the electrolytic acidic water container 2 is installed at a position where the electrolytic acidic water flowing out of the outflow nozzle 8 of the main body 11 can be received.

Next, the switch 9 is turned on, a voltage is applied to the electrodes, and the electrolysis of the electrolyzed water in the electrolytic cell is started. At the same time, the opening / closing means 7 is opened and the flow of the electrolyzed water starts. Is done. The electrolyzed water filled in the electrolyzed water tank 4 is electrolyzed when passing through the surface of the electrode 3, and acidic water is generated on the anode side and alkaline water is generated on the cathode side. It flows down to the electrolytic acidic water container 2 via the liquid pipe 6 and the outflow nozzle 8. By having the various conditions of the present invention, the electrolytic acidic water having an effective chlorine concentration is finally stored in the electrolytic acidic water container 2. When all the electrolyzed water in the electrolyzed water tank 4 flows down to the electrolyzed acidic water container 2, the electrolyzed electrolyzed water generation step by electrolysis ends.

Next, the electrolytic acidic water container 2 containing the generated electrolytic acidic water is removed from the main body 11, the spray nozzle 3 is removed from the spray nozzle holder 33, and the electrolytic acidic water container 2 and the spray nozzle 3 are connected. hand,
Spray or spray electrolytic acid water on the part to be sprayed.
Hereinafter, examples of the present invention performed using the electrolytic acidic water generator illustrated in FIG. 1 will be described.

[0046]

Embodiment 1 With respect to the embodiment of the present invention shown in FIG. 1, some embodiments in which the capacity of an electrolyzed water tank, an average cross-sectional area, a cross-sectional area of a minimum flow path cross-sectional area of a nozzle, and the like are changed are as follows.
The electrolyzed water of 100% and 50% of the electrolyzed water tank capacity was stored in the electrolyzed water tank, electrolyzed by a head, and the effective chlorine concentration of the generated electrolyzed acidic water was measured. The electrolyzed water used had a sodium chloride concentration of 0.9 w / v% and succinic acid of 0.01 w / v%.

The electrode material used was a material in which titanium was coated with platinum for both the anode and the cathode. The shape of the electrode in contact with the water to be electrolyzed in the electrolytic cell is determined by the ratio of the electrode length a in the direction perpendicular to the gravity direction to the electrode length b in the direction of gravity, a / b =
6.25.

The amount of water to be electrolyzed V (mL), the average cross-sectional area of the electrolyzed water tank S (cm ² ), from the lower end of the minimum cross-sectional area of the flow passage provided in the nozzle to the liquid level when the capacity of the electrolyzed water tank is 100% The drop H (cm) was set. 0.05 ≦ V / (S × H) ≦
For three cases of 0.5, the effective chlorine concentration of the generated acidic water was measured, and Examples 1a, 1b, 1
Table 1 shows the results.

[0049]

Comparative Example 1 In the same manner as in the example, V / (S × H) <
Measurements were made for three cases where 0.04 or V / (S × H)> 0.5, and Comparative Examples 1a, 1b, and 1c were obtained. The results are also shown in Table 1.

[0050]

[Table 1]

As shown in Table 1, 0.05 ≦ V / (S × H) ≦
In Examples 1a, 1b, and 1c satisfying 0.5, even when the storage amount of the electrolyzed water tank fluctuates by 50%, the change rate of the available chlorine concentration in the generated acidic water is 25%.
%, And the height H (cm) from the lower end of the minimum flow path cross-sectional area to the liquid level at the maximum capacity of the electrolyzed water tank is 30.
cm, which was high enough to be placed in ordinary households.

On the other hand, in Comparative Example 1a where V / (S × H)> 0.5, the rate of change of the effective chlorine concentration in the generated acidic water when the stored amount of the electrolyzed water tank changed by 50%. But,
Since it exceeds 25%, it is not possible to use the storage amount of the electrolyzed water tank by changing it, which is inconvenient. Also, V /
In Comparative Examples 1b and 1c in which (S × H) <0.04, the fluctuation rate of the effective chlorine concentration was 25% or less even if the storage amount of the electrolyzed water tank fluctuated by 50%. H) is 30c
m or more, and the device became larger.

(Measurement Method of Available Chlorine) The iodine method was used to measure the effective chlorine concentration. That is, the sample 30 ml
In a flask, add RO water to make 300 ml, further add 10 ml of 7.5% potassium iodide solution, 50 ml
% Acetic acid (5 ml), and allowed to stand in a refrigerator for 5 minutes.
Titrate with N-sodium thiosulfate solution (titer f = 0.999), and after the solution becomes light yellow, 3m of starch solution
1 was added and titration was performed until the blue color of the iodine starch disappeared. The available chlorine concentration was calculated from equation (1). Effective chlorine concentration (ppm) = 0.3545 x titration (ml) x f x 1000/30 Equation (1)

[0054]

Embodiment 2 An electrolysis experiment was performed on the embodiment of the present invention of Embodiment 1a while changing the electrode shape. , Water to be electrolyzed 50m
1, electrolysis was performed at an electrode area of 4 cm ² and an electrolytic current of 200 mA. Table 2 shows the results.

[0055]

[Table 2]

[0056]

According to the present invention, there is provided a head type electrolyzed acidic water generator for generating electrolyzed acidic water which is easy to carry with a simple structure and which transports electrolyzed water from an electrolyzed water tank to an electrolytic cell by a head. can do.

Further, according to the present invention, the minimum flow passage cross-sectional area of the flow path of the electrolyzed water and the electrolyzed water is 0.03 to 7
Since it is 9 mm ^2, it is possible to provide an appropriate treatment time and an appropriate size of an electrolytic acidic water generator even when used in ordinary households.

Further, according to the present invention, the capacity of the electrolyzed water reservoir is Vcm ³ , and the average cross-sectional area of the electrolyzed water reservoir is Sc.
m ² , when the head from the lower end of the minimum flow path cross-sectional area to the surface of the electrolyzed water when the electrolyzed water is Vcm ^{3 in the} electrolyzed water reservoir is 0.05 cm, 0.05 ≦ V / (S × H)
Since ≦ 0.5, even when the amount of water to be electrolyzed stored in the electrolyzed water storage unit fluctuates, the effective chlorine concentration of the electrolyzed water generated and obtained in the electrolyzed acidic water container does not significantly change.

Further, according to the present invention, since the electrode length a in the direction perpendicular to the direction of gravity and the electrode length b in the direction of gravity have a relationship of a> b on the liquid flow surface of the electrode plate of the electrolytic cell, the electrolysis efficiency is reduced. Improved and stable electrolytic acid water preparation

[Brief description of the drawings]

FIG. 1 is a front view having a partially cutout portion according to an embodiment of the present invention.

FIG. 2 is a cross-sectional side view of one embodiment of the present invention of FIG.

FIG. 3 is a block diagram of an electric system according to the embodiment of the present invention shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrolyzed acidic water generator 11 Main body 2 Acidic water storage container 21 Acidic water storage container engagement part 3 Spray nozzle 31 Spray port 32 Nozzle engagement part 33 Spray nozzle holder 41 Electrolyzed water tank lid 42 Transition part 5 Electrolyzer 51 Electrode 52 Electrode Case 53 Electrode end 54 Outflow port 6 Connection pipe 7 Opening / closing means 8 Outflow nozzle 81 Narrow section (minimum flow path cross-sectional area) 82 Outflow nozzle tip 9 Power switch

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D061 DA01 DB01 DB07 DB10 EA03 EA04 EB01 EB08 EB14 EB16 EB17 EB19 EB33 EB39 ED12 ED20 FA11 GA14 GC01 GC11 GC12 GC18

Claims (6)

[Claims] 1. An electrolyzed water storage unit for storing electrolyzed water that generates acidic water by diaphragmless electrolysis, an electrolyzer, an electrolyzed water outflow nozzle, a power supply, a current control means, and an electrolyzed acid water container Wherein the electrolyzed water reservoir is substantially above the electrolyzer, and the electrolyzed water is electrolyzed while the electrolyzed water flows down into the electrolyzer by a head. A drop-type electrolytic acid water generator characterized by generating a water. 2. The minimum flow path cross-sectional area in the flow path of the electrolyzed water and the electrolyzed acidic water is 0.03 to 79.
The head type electrolytic acid water generator according to claim 1, wherein the diameter is ² mm. 3.該被electrolytic water reservoir capacity to Vcm ^3, wherein when Scm 2 the average cross-sectional area of該被electrolytic water ^reservoir, a該被electrolytic water was Vcm ³ placed to said electrolytic water reservoir 4. The method according to claim 1, wherein, when the head from the lower end of the minimum flow path cross-sectional area to the surface of the electrolyzed water is Hcm, 0.05 ≦ V / (S × H) ≦ 0.5. 2. The drop type electrolytic acid water generator according to 2. 4. The minimum flow path cross-sectional area is 0.07 to 20 mm.
4. The head-type electrolytic acid water generator according to claim 1, wherein the number is ² . 5. The head-type electrolytic acid water generator according to claim 1, wherein said minimum flow path cross-sectional area is 0.2 to 7 mm ² . 6. The electrode length a in the direction perpendicular to the direction of gravity and the electrode length b in the direction of gravity on the liquid flow surface of the electrode plate of the electrolytic cell have the following relationship: The drop type electrolytic acid water generator according to 1. a> b