WO2011096503A1

WO2011096503A1 - Electrode structure for device for yielding aqueous solution of hypochlorous acid or the like

Info

Publication number: WO2011096503A1
Application number: PCT/JP2011/052309
Authority: WO
Inventors: 義久石井
Original assignee: Ishii Yoshihisa
Priority date: 2010-02-08
Filing date: 2011-02-04
Publication date: 2011-08-11
Also published as: JPWO2011096503A1

Abstract

Provided is an electrode structure for a device for yielding an aqueous solution of hypochlorous acid or the like, the electrode structure being safe, simple, and inexpensive. In the electrode structure, the electrodes are used at a satisfactory efficiency, and hypochlorous acid, sodium hypochlorite, or the like is generated at a satisfactory efficiency. With the electrode structure, the user can produce an aqueous solution of hypochlorous acid or the like by himself anytime anywhere. The electrode structure (A) is for a device for yielding an aqueous solution of hypochlorous acid or the like by electrolyzing an electrolytic solution, and is configured of a cylindrical object (1) having a pair of conductive wires (10) which run through the inside of the cylindrical object (1), an electrode attachment part (8) affixed to an end part of the cylindrical object (1), and an anode (3) and a cathode (4) which have been disposed face to face on the electrode attachment part (8), the anode (3) and the cathode (4) having been connected, either directly or indirectly through other conductive material (18), respectively to ends of the conductive wires (10).

Description

Electrode structure of a device for producing hypochlorous acid water, etc.

The present invention produces hypochlorous acid water and sodium hypochlorite water (hereinafter abbreviated as “hypochlorous acid water etc.”) used for sterilization, sterilization, deodorization and the like. The present invention relates to an electrode structure of an apparatus for generating hypochlorous acid water or the like.

In recent years, strong sterilization power by mild hypochlorous acid water in the vicinity of neutral to no acid rough skin with no generation of chlorine gas has attracted attention, and it is used for sterilization of the mouth, prevention of bad breath, washing of fingers, etc. Hypochlorous acid water and the like are now being sold in bottles.

Conventionally, a hypochlorous acid water generating device for adding sodium chloride to water contained in a container and generating hypochlorous acid water or the like by electrolysis is known and widely used (for example, patents). References 1-3).

JP 2003-053344 A Japanese Patent Laid-Open No. 2004-290937 JP 2007-044573 A

However, in hypochlorous acid water and the like that are packed and sold in bottles, at a concentration of 300 mg / L or less that is easy to use safely, the concentration is greatly reduced by storage and the bactericidal effect is lost. Further, bottled commercial products such as hypochlorous acid water cannot be sold over-the-counter due to a short storage period, and are ordered sales. Therefore, there are disadvantages that it takes time to obtain and further shortens the period of use.

Further, in the apparatus for generating hypochlorous acid water disclosed in Patent Documents 1 to 3, a part of the electrode is placed above the surface of the electrolysis solution (hereinafter abbreviated as “electrolyte”), and the power source An electric wire connected to is connected. This is because hypochlorous acid water has strong corrosive power and the copper wire can be dissolved, so the entire surface of the electrode cannot be immersed in the electrolyte, and a part of the electrode above the electrolyte surface contributes to the electrolysis. It was not possible, and the usage efficiency of the electrode was poor.

In view of this, the present invention makes it possible to improve the use efficiency of the electrode, and to generate hypochlorous acid, sodium hypochlorite, etc. (hereinafter abbreviated as “hypochlorous acid”, etc.) The purpose is to provide a safe, simple, and inexpensive device structure for generating hypochlorous acid water, etc. at any time and anywhere by the user himself / herself. To do.

For this reason, the first invention is an electrode structure of a generating device that electrolyzes an electrolyzed liquid to generate hypochlorous acid water, etc., and a cylindrical body having a pair of conductive wires inside, An electrode mounting portion fixed to the tip of the cylindrical body, an anode provided directly opposite to each end of the conductive wire or indirectly through another conductive material, and provided facing the electrode mounting portion; It consists of a cathode.

According to a second invention, in the first invention, the electrode mounting portion is made of a rigid electrically insulating material, the electrode mounting base portion to which the both electrodes are mounted, one end is fixed to the cylindrical body, and the other An end is constituted by an intermediate attachment portion fixed to the electrode attachment base portion.

According to a third invention, in the second invention, the electrode attachment base portion constituting the electrode attachment portion is inserted into the protective portion to which both electrodes are attached and protects both electrodes, and the conductive material is inserted. It is comprised from the accommodating part which accommodates the said sealing material.

4th invention is an electrode structure of the production | generation apparatus which electrolyzes an electrolysis liquid and produces | generates hypochlorous acid water etc., Comprising: Conductive wire is passed inside and one end of this conductive wire is derived | led-out outside A cylindrical body, an anode and a cathode disposed in a lower portion of the cylindrical body, and an electrode mounting portion in which the conductive wire is connected to the electrodes directly or indirectly through another conductive material in the cylindrical body. And is provided.

A fifth invention is characterized in that, in the first to fourth inventions, a lid provided at an opening of the container is provided at an end of the cylindrical body on the conductive wire drawing side.
According to a sixth aspect, in the fifth aspect, a reducing agent storage member that stores a reducing agent is disposed above the lid, and a gas generated by electrolysis is introduced into the reducing agent storage member to reduce the reducing agent. It is characterized in that it is discharged at the outside after being reduced by.

The present invention has good electrode use efficiency, good generation efficiency of hypochlorous acid and sodium hypochlorite, etc., safe and simple to make hypochlorous acid water etc. anytime, anywhere by the user himself, It is possible to provide an electrode structure for a low-priced apparatus such as hypochlorous acid water.

It is a perspective view of generators, such as hypochlorous acid water, concerning a 1st embodiment of the present invention. 1 is a perspective view of an electrode structure according to a first embodiment of the present invention. It is a longitudinal cross-sectional view of the electrode structure which concerns on the 1st Embodiment of this invention. FIG. 4 is a sectional view taken along line XX in FIG. 3. It is a longitudinal cross-sectional view of the electrode structure which concerns on the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the electrode structure which concerns on the 3rd Embodiment of this invention. It is a longitudinal cross-sectional view of the electrode structure which concerns on the 4th Embodiment of this invention. It is a perspective view of the electrode structure which concerns on 4th Embodiment similarly. It is a longitudinal cross-sectional view of a partially broken electrode structure which is an embodiment in which a reducing agent storage member is disposed on the upper part of the lid of the electrode structure.

Hereinafter, a first embodiment for carrying out the present invention will be described. First, hypochlorous acid or sodium hypochlorite water (hereinafter referred to as “hypochlorous acid”) used for sterilization of the mouth, sterilization around cutting boards and kitchens, deodorization of toilets, prevention of bad breath, and hand washing. A first embodiment of an electrode structure A of a generating apparatus that generates “acid water” will be described.

FIG. 1 is a perspective view showing a state where the electrode structure A of the present invention is used. Reference numeral 11 denotes a DC power supply, and 12 denotes a control circuit such as a timer for generating hypochlorous acid water or the like for a predetermined time when the switch 12A is pressed while the power is supplied from the DC power supply 11. The control unit 13 is a container such as a used plastic bottle. The electrode structure A is inserted into the container 13 in which an electrolytic solution such as a saline solution to which salt is added (hereinafter abbreviated as “electrolytic solution”) is placed. It is used by being connected to the DC power source 11 or the like. In addition, although salt solution is used as said electrolyte solution, it is not restricted to this, You may use salt water of other chloride salts, such as potassium chloride. Furthermore, you may use hydrochloric acid aqueous solution as another aqueous solution.

Next, the electrode structure A of an apparatus for producing hypochlorous acid water or the like will be described. In FIG. 2, which is a perspective view of the electrode structure A, the electrode mounting portion 2 is fixed to one end (lower end) of the hollow cylindrical tubular body 1, and the electrolytic surface of the electrode mounting portion 2 is in a vertical direction. A plate-like anode 3 and cathode 4 are attached.

In addition, although the lid 5 for closing the upper surface opening of the container 13 without sealing is attached to the other end of the cylindrical body 1, it is not always necessary to attach it. That is, even if the lid 5 is not present, there is no problem in the generation of hypochlorous acid water or the like. However, even if the container 13 falls down, by providing the lid 5, the electrolyte can be transferred from the container 13. The amount of leakage is small.

Next, the electrode mounting portion 2 will be described with reference to FIGS. The electrode mounting portion 2 is fitted with the lower end portion of the cylindrical body 1 by fitting the lower end portion of the cylindrical body 1 and the intermediate mounting portion 7 later by fitting the lower end portion of the intermediate mounting portion 7. And an electrode mounting base portion 8 to be fixed to.

A recess 8A is formed on the upper surface of the electrode mounting base 8, and an anode 3 for electrolysis and a slit 8C through which the cathode 4 penetrates are formed on the bottom wall 8B forming the recess 8A, below the bottom wall 8B. Is formed with a hollow portion 8D. And the slit 9 connected to the said hollow part 8D is opened in the lower part of the side surface of the said electrode attachment base 8, and it opposes to the opposing inner wall 8E which forms the hollow part 8D through this slit 9, respectively. In addition, the anode 3 and the cathode 4 are attached. In this case, the upper portions of the anode 3 and the cathode 4 are disposed so as to protrude into the recess 8A from below through the slit 8C.

In the case where the connection portion between the anode 3 and the cathode 4 is easily corroded like a copper wire in which the two conductive wires 10 connected to the anode 3 and the cathode 4 are coated with a vinyl chloride resin material, On the bottom wall 8B, the slit 8C and the vicinity thereof are formed of a single layer or a plurality of layers such as a silicon sealing material, a hot melt sealing material, and an epoxy resin sealing material so that the electrolytic solution does not enter the concave portion 8A through the slit 8C. The layer sealing material 21 is sealed in a water-tight manner. Further, when the concave portion 8A is filled with the sealing material 22, the anode 3 and the cathode 4 are firmly fixed.

The conductive wire 10 is not limited to a circular shape, and may be an ellipse or a rectangle, and is not limited by the shape. Further, the conductive wire is not limited to a copper wire coated with a vinyl chloride resin material, and may be another conductive wire, a corrosion-resistant titanium wire, or the like.

Then, the two conductive wires connected to the anode 3 and the cathode 4 in a state in which the slit 8C and the vicinity thereof are sealed with a sealing material 21 and the recess 8A is filled with the sealing material 22. 10 is led out from the upper surface opening of the cylindrical body 1 through the intermediate mounting portion 7 and the hollow portion 1A of the cylindrical body 1 to which the intermediate mounting portion 7 is fixed. The lower end portion of the intermediate attachment portion 7 is fitted to fix both.

The cylindrical body 1 and the intermediate mounting portion 7 are fixed, and the intermediate mounting portion 7 and the electrode mounting base 8 are fixed together with a solvent, a dope cement, a silicon sealing material in addition to a dedicated adhesive according to the material. An epoxy resin sealing material or other materials may be used, or may be fixed by means such as ultrasonic welding, press-fitting, or screwing. Moreover, the sealing material 22 may also be used as an adhesive, and the intermediate mounting portion 7 and the electrode mounting base portion 8 may be joined simultaneously with the filling of the sealing material 22 into the recess 8A.

The outer diameter of the electrode mounting portion 2 may be appropriately determined in consideration of the inner diameter of the upper end opening of the container 13. However, when using a PET bottle, the inner diameter of the drinking mouth of the PET bottle is 21 to 22 mm. The outer diameter of the electrode mounting portion 2 is preferably 7 to 21 mm, more preferably 10 to 20 mm, and even more preferably 14 to 19 mm because of its presence and ease of handling.

Then, as shown in FIG. 4, the end face (peripheral side surface forming the thickness of the flat plate) and the back periphery of the anode 3 and the cathode 4 facing each other are covered with the electrode mounting base 8 to prevent finger cuts during handling. It has been broken. The electrode mounting base 8 may be made of a flexible material such as silicon rubber, but if it is made of a rigid electrically insulating material such as AS, ABS, or PVC resin, it is possible to prevent the electrode from collapsing. Since hypochlorous acid water or the like may enter the user's mouth, it is preferable to select from the food grade.

As shown in FIG. 4, the

electrodes

3 and 4 are attached to the electrode attachment base 8 so that no space is formed between the anode 3 and the back surface of the cathode 4 facing each other. As described above, the electrode mounting base 8 may be formed of a hollow cylindrical body (a hollow cylindrical body having a circular outer diameter and a circular inner diameter).

The anode 3 is obtained by coating a titanium base material with a platinum-based oxide such as iridium oxide, and may be another material as long as it is a durable low chlorine overvoltage material. The cathode 4 is a titanium plate, but may be the same material as the anode 3 or may be a durable material such as another platinum group oxide coating material. According to the first embodiment, the salt concentration of the electrolyzed salt solution is high, and the rate at which underwater scale components such as Ca ⁺⁺ , Mg ⁺⁺ , and silicic acid are deposited on the cathode 4 is high due to the transport number. In combination with the reduction, the cathode 4 has a structure that can easily clean the electrolytic surface of the cathode 4, so that reverse electrolysis is not required, so the cathode 4 is made of a titanium plate that does not require durability. .

The size and thickness of the anode 3 and the cathode 4 which are flat plates and are arranged in parallel with a predetermined interval may be appropriately selected as necessary. For insertion into the container 13, for example, when the

electrodes

3 and 4 are formed in a square shape, the dimensions of the electrolytic surface are preferably 5 to 15 mm in horizontal length and 10 to 60 mm in vertical length. More preferably, the length is 8 to 13 mm and the vertical length is 10 to 40 mm. Precipitation of the scale component on the electrolytic surface of the cathode 4 is very unlikely to occur, but when the scale component adheres, a thin plate is inserted between the anode 3 and the cathode 4 and the cathode 4 The electrolytic surface is removed by rubbing. When the distance between the anode 3 and the cathode 4 is narrow, it is preferable to attach cello tape (registered trademark) or the like to the electrolytic surface side of the anode 3 so as not to damage the electrolytic surface.

Further, when the distance between the anode 3 and the cathode 4 is 5 mm or more, it may be rubbed with a cotton swab. Considering the removal of scale stone components and the electrolytic current density, this interval is preferably 2 mm to 20 mm, and preferably 3 mm to 10 mm. In the insertion into the container 13 made of PET bottles, the distance is more preferably 4 mm to 8 mm, and still more preferably 5 mm to 6 mm. Thus, by increasing the distance between the anode 3 and the cathode 4, the electrolytic surfaces of both

electrodes

3 and 4 can be easily cleaned, and maintenance is easy.

Further, by making the distance between the anode 3 and the cathode 4 as described above, the buoyancy of various gases such as oxygen gas, hydrogen gas, and a small amount of chlorine generated in the electrolyte during electrolysis is utilized. And since a water flow can be made with respect to both the

electrodes

3 and 4, the generation | occurrence | production efficiency of hypochlorous acid water etc. becomes good. In addition, since the flow of the electrolyte is large on the electrolysis surfaces of the

electrodes

3 and 4 and the pH can be kept low, it is difficult to attach a scale.

Next, the cylindrical body 1 will be described. The cylindrical body 1 sinks the anode 3 and the cathode 4 attached to the electrode attachment portion 2 to the level of the electrolyte in the container 13. Here, the water level is the water level determined by the handling specifications in the batch type, and the water level determined by the water level sensor in the automatic water supply type. The length of the cylindrical body 1 in the longitudinal direction may be selected according to the depth of the container 13 to be used and the water depth of the electrolytic solution. However, in the case of the container 13 made of a plastic bottle, the length is preferably 3 cm to 25 cm. More preferably, it is more than 16 cm or less.

Further, the cylindrical body 1 has a space through which the conductive wire 10 passes in the hollow portion 1A. The outer diameter has no problem in strength, and the outer diameter is 7 mm to 16 mm as a thickness that allows the conductive wire 10 to be easily inserted. A hollow cylindrical pipe having a diameter of about 10 mm is preferable, but an outer diameter of 10 mm to 12 mm is more preferable. The same thickness as that of the electrode attachment portion 2 may be used, and the cylindrical body 1 and the electrode attachment portion 2 may be manufactured by integrally processing from one material.

The material of the cylindrical body 1 is suitably a material that is rigid enough to maintain the shape, but may be flexible. Specifically, the cylindrical body 1 is made of an electrically insulating material such as ABS, AS, HIPS, or PVC resin. Hypochlorous acid water or the like may enter the mouth of the user. Therefore, it is preferable to select from food grade.

Next, attachment of the lid 5 to the cylindrical body 1 will be described. The lid 5 closes the upper surface opening of the container 13 in an unsealed state. The lid body 5 is applied to the upper surface opening of the container 13 and uses a lid such as a cap of a PET bottle or the like. The fitting portion may be outside or inside the top opening of the container 13. At the time of electrolysis, the lid body 5 is attached to the upper end portion of the cylindrical body 1 so that the anode 3 and the cathode 4 are entirely located below the water level of the electrolytic solution in the container 13.

Accordingly, by appropriately setting the length of the container 13 and the electrode structure A, the cylindrical body 1 is inserted into the container 13 with the lid 5 attached to the cylindrical body 1, When the upper surface opening of the container 13 is closed by the lid body 5 by screwing the thread formed on the inner surface of the lid body 5 with the thread of the cap of the container 13 (closed in a non-sealed state). The lower end of the electrode structure A is in a floating state without contacting the bottom wall of the container 13.

Next, a structure for attaching the lid 5 to the cylindrical body 1 will be described. First, in a state where the lower fixture 15 is housed in the internal space of the lid body 5, the cylindrical body 1 is fixed to the lower fixture via the insertion opening of the lower fixture 15 and the insertion opening of the lid body 5. The tool 15 and the lid 5 are inserted. Further, the upper end of the cylindrical body 1 is inserted into the upper fixing tool 16 through the insertion opening of the upper fixing tool 16, and the upper fixing tool 16 is bonded and fixed to the end of the cylindrical body 1.

Then, the lid body 5 and the lower fixture 15 are loosened toward the upper fixture 16 side so that the lid 5 and the lower fixture 15 are slid and the lid 5 is sandwiched between the upper fixture 16. In this state, the lower fixture 15 and the cylindrical body 1 are joined and fixed with an adhesive or the like. In this case, a gap S <b> 1 is formed between the lower fixture 15 and the upper wall of the lid 5, and a gap S <b> 2 is formed between the lid 5 and the cylindrical body 1. Accordingly, the various gases generated during electrolysis can be discharged to the outside of the container 13 through the gaps S1 and S2 and the gap S3 between the lid 5 and the upper fixture 16.

Accordingly, the upper structure of the container 13 is not hermetically sealed by rotating the lid 5 without rotating the electrode structure A of the generator of hypochlorous acid water or the like, and fixing the upper surface of the container 13. It can be closed with. When the material of the upper fixture 16 and the lower fixture 16 is the same as that of the cylindrical body 1, joining becomes easy. The material of the lid 5 may be a general-purpose resin such as PP resin.

According to the first embodiment as described above, the use efficiency of the electrode is good, and the generation efficiency of hypochlorous acid, sodium hypochlorite, etc. (the generation amount of hypochlorous acid / current amount) is good. Therefore, it is possible to provide a safe, simple, and inexpensive electrode structure for a hypochlorous acid water generating apparatus that allows users to make hypochlorous acid water anytime and anywhere.

The anode 3 and the cathode 4 are fixed and protected by the electrode mounting base 8 of the electrode mounting portion 2, and the entire electrolytic surface of both

electrodes

3, 4 is stored in the container 13 by the cylindrical body 1. Submerged below the electrolyte level. Therefore, the electrolyte is well stirred in the container 13 between the anode 3 and the cathode 4 and around the

electrodes

3 and 4 due to the buoyancy of the various gases generated by electrolysis. Therefore, the fluid film on the electrolysis surfaces of the

electrodes

3 and 4 is thinned by this stirring, and the supply of chlorine ions becomes active at the anode 3 to increase the generation efficiency of hypochlorous acid, etc. Chloric acid water or the like can be obtained.

On the other hand, in the cathode 4, the diffusion of hydroxide ions generated on the electrolytic surface becomes active, the concentration is lowered, and precipitation of the scale component is difficult to occur. In addition, by setting the distance between the anode 3 and the cathode 4 to an appropriate length, the user can easily remove the scale adhering to both the

electrodes

3, 4. Since the circuit can be omitted and the reverse electrolysis is not performed, the cathode 4 need not be made of the same expensive material as the anode 3. Further, since the anode 3 and the cathode 4 are immersed in the electrolytic solution by extending with the cylindrical body 1, most of the electrolytic surfaces of the anode 3 and the cathode 4 to be used contribute to the electrolysis. Therefore, together with the fact that reverse electrolysis is not required, the expensive material used for the anode 3 can be greatly reduced, and the cost of the electrode structure A can be reduced.

Further, when the upper surface opening of the container 13 is closed by the lid 5 (closed without being sealed), the lower end of the electrode structure A is in a floating state without contacting the bottom wall of the container 13. The electrode structure A does not fall into the container 13 and the electrolyte is more easily stirred between the anode 3 and the cathode 4 facing each other. Further, when the lid 5 is closed, the amount of leakage of the electrolytic solution can be reduced even if the container 13 falls down. Furthermore, after generating hypochlorous acid water or the like, the electrode structure A is taken out from the container 13 and immediately replaced with the lid body 5 to use the other lid body for the original plug. Can be used for the generated hypochlorous acid water and the like, and further, by inserting this electrode structure A into a container in which another electrolytic solution is housed, further hypochlorous acid water Etc. can be generated.

Next, a second embodiment of the present invention will be described based on FIG. In this case, the portions different from the first embodiment will be described in particular. In the second embodiment, each conductive material 18 connects each conductive line 10 to the anode 3 and the cathode 4. Then, the electrode mounting base 8 of the electrode mounting section 2 is protected mainly by the protection of the anode 3 and the cathode 4 and the conductive material 18 is inserted, and the sealing material 22 is recessed in the recess 20C. It is comprised with the accommodating part 20 accommodated in.

Then, the protective portion 19 and the storage portion 20 are fixed to form the electrode mounting base portion 8, and the two conductive wires 10 in which the conductive materials 18 are connected to the anode 3 and the cathode 4 are connected to the intermediate mounting portion 7. And after being led out from the upper surface opening of the tubular body 1 through the hollow portion 1A of the tubular body 1 to which the intermediate mounting section 7 is fixed, the lower end of the intermediate mounting section 7 is connected to the electrode mounting base 8 The parts are fitted to fix both.

More specifically, a conductive material 18 is brazed to the upper back surfaces of the electrolytic surfaces of the anode 3 and the cathode 4 and connected by spot welding or the like, and the other end of the conductive material 18 is opened in the storage unit 20. It is inserted into a small hole and connected to the conductive wire 10 inside the sealing material 22. In this case, the conductive material 18 and the conductive wire 10 may be connected using terminals, soldered, or other methods.

When the conductive wire 10 is easily corroded, such as a copper wire coated with a vinyl chloride resin material, the electrolytic solution passes through the gap where the conductive material 18 is inserted into the storage portion 20. The gap and the vicinity thereof are sealed with a sealing material such as a silicon resin sealing material, a hot-melt sealing material, and an epoxy resin sealing material in a single layer or multiple layers, and the connection portion and the copper wire. It is further preferable to seal the exposed portion of. Further, when filled with the sealing material 22, the anode 3 and the cathode 4 are firmly fixed. However, when the conductive wire 10 is made of a material that is not easily rusted other than a copper wire, for example, a titanium wire, a stainless steel wire, etc., the conductive wire 10 does not necessarily need to be watertightly sealed with the aforementioned sealing material. Good. This second embodiment also has the same effect as the first embodiment.

Next, with respect to the third embodiment of the present invention, a part different from the first and second embodiments will be described in particular with reference to FIG. In the third embodiment, as in the second embodiment, the electrode mounting base portion 8 of the electrode mounting portion 2 is protected mainly by the anode 3 and the cathode 4 to protect both electrodes. 19 and the housing portion 20 in which both connectors 24 are disposed and the sealing material 22 is housed in the recess 20C.

Then, the two conductive wires 10 connected to the connector 24 are connected to the two conductive wires 10 from the upper surface opening of the tubular body 1 through the intermediate attachment portion 7 and the hollow portion 1A of the tubular body 1. Is led out to fix the cylindrical body 1, the intermediate mounting portion 7 and the protection portion 19. Thereafter, upper ends of the anode 3 and the cathode 4 attached to the protection unit 19 are connected to the connectors 24, and the protection unit 19 and the storage unit 20 are detachably fixed.

This third embodiment also has the same effects as the first embodiment, and also makes it easy to fix the protective portion 19 and the storage portion 20 and to easily attach and detach.

Next, with respect to the fourth embodiment of the present invention, parts different from the first to third embodiments will be particularly described with reference to FIGS. The major feature of the fourth embodiment is that the cylindrical body 1, the intermediate mounting portion 7 and the electrode mounting base portion 8 are integrally formed from the beginning, and are formed by a cylindrical body 31 having a hollow cylindrical shape. There is in point.

And the upper part of the said anode 3 and the said cathode 4 arrange | positioned under the cylindrical hollow part 31A of the said cylindrical body 31 is inserted through the slit 35 of the accommodating part 33 inserted in the said cylindrical body 31, and was fixed. The upper ends of the anode 3 and the cathode 4 that are led out upward and further penetrate the sealing material 32 are connected to the conductive lines 10. The conductive wire 10 may be indirectly connected to the

electrodes

3 and 4 via another conductive material. Reference numeral 34 denotes a sealing material, which is disposed in the recess 33C of the storage portion 33 having a U-shaped longitudinal section.

Accordingly, the electrolytic solution is sealed watertight by the sealing material 34 so that the electrolytic solution does not enter the concave portion 33C of the storage portion 33 through the slit 35, and the both conductive wires 10 are covered with a vinyl chloride resin material. When the connecting portion between the anode 3 and the cathode 4 is easily corroded like the copper wire formed, the sealing material 32 prevents the electrolytic solution from contacting the connecting portion. 4 is firmly fixed. However, when the conductive wire 10 is made of a material that is not easily rusted other than a copper wire, for example, a titanium wire, a stainless steel wire, etc., the conductive wire 10 does not necessarily need to be watertightly sealed with the aforementioned sealing material. Good.

This fourth embodiment also has the same effect as the first embodiment. Further, the anode 3 and the cathode 4 and the both electrodes in the cylindrical body 31 are directly connected to the lower part in the cylindrical body 31 through which the conductive wire 10 passes and one end of the conductive line 10 is led out to the outside. Or the electrode attachment part (housing part 33) which connected the said electrically conductive wire 10 indirectly through another electrically conductive material, and the connection part of the said electrically conductive wire 10 and the said both electrodes 10 in the said cylindrical body 31 are watertight. Since the sealing material 34 to be sealed is disposed, the cylindrical body 1, the intermediate mounting portion 7, and the electrode mounting base portion 8 of the first embodiment can be integrated from the beginning. Can be manufactured at low cost.

Further, in a state where the lower fixing tool 15 is housed in the inner space of the lid body 5, the cylindrical body 31 is inserted through both of the lower fixing tool 15 and the lid body 5 through the insertion opening. . Further, the upper fixture 36 is inserted into the upper end portion of the cylindrical body 31 through the insertion opening, and the upper fixture 36 is joined and fixed to the end portion of the cylindrical body 31. Then, the lid 5 and the lower fixture 15 are slid so that the lid 5 is sandwiched between the upper fixture 36 and the lid 5 is loosely pressed together with the lower fixture 15 to the upper fixture 36 side. Then, the lower fixture 15 and the cylindrical body 31 are joined and fixed with an adhesive or the like.

Therefore, without rotating the electrode structure A of the generating device such as hypochlorous acid water, the lid 5 is rotated to be attached to the upper portion of the container 13 and the upper surface opening of the container 13 is closed in a non-sealing state. be able to.

Next, an embodiment in which a reducing agent storage member 40 in which a reducing agent 38 such as activated carbon is stored in a storage chamber 39 is disposed above the lid 5 will be described with reference to FIGS. As described in the first embodiment, the lower fixture 15, the lid 5 and the upper fixture 16 are attached. The upper fixture 16 has a predetermined interval closer to the cylindrical body 1. A small hole 42 is formed.

In addition, a plurality of small holes 43 are formed in the upper wall of the reducing agent storage member 40 that opens the lower surface. Then, the conductive wire 10 is pulled out to the outside of the reducing agent storage member 40 through the insertion port 46 formed in the upper wall of the reducing agent storage member 40, and then the reducing agent 38 is stored in the upper fixture 16. The lower end portion of the reducing agent storage member 40 in the state is fitted to the upper fixture 16 from above.

Therefore, the various gases generated in the container 13 at the time of the electrolysis are transferred between the lower fixture 15 and the upper wall of the lid 5 between the gap S1, the lid 5 and the cylindrical body 1. After being introduced into the storage chamber 39 through the gap S2 and the small hole 42 formed in the upper fixture 16 and reduced by the reducing agent 38, the opening was established on the upper wall of the reducing agent storage member 40. It discharges to the outside of the container 13 through the plurality of small holes 43.

As described above, when the reducing agent storage member 40 in which the reducing agent 38 is stored in the storage chamber 39 is provided in the discharge path for the various gases generated during electrolysis, chlorine gas generated by electrolysis of saline solution is provided. Is reduced to be harmless and discharged outside the container 13.

When the reducing agent 38 can no longer exhibit its original effect, it is necessary to replace the reducing agent 38. In this replacement, the lower end portion of the reducing agent storage member 40 is fixed to the upper fixing portion. The fitting with the tool 16 is released, the old reducing agent 38 is taken out from the reducing agent storage member 40, and a new reducing agent 38 is stored instead. The lower end of the reducing agent storage member 40 and the upper fixing tool 16 is fitted.

Hereinafter, for the production of hypochlorous acid water or the like using the electrode structure A of the production apparatus for hypochlorous acid water or the like of the present invention, the electrode structure A which is the second embodiment shown in FIG. 3 is used. I will explain. First, purified water such as tap water is poured to the vicinity of the shoulder of the container 13, salt of a predetermined concentration is added, the container 13 is turned to plug the container 13, and the container 13 Shake to dissolve the salt. And the said cap is removed from the container 13, the said electrode structure A is inserted, the said cover body 5 is rotated, and it plugs. When the conductive wire 10 of the electrode structure A is connected to the control unit 12 connected to a power source and the switch 12A is pressed, the anode 3 and the cathode 4 are energized for a predetermined time by a timer, and electrolysis is performed. Then, hypochlorous acid water and the like are generated.

Next, the specifications and electrolysis conditions of the electrode structure A are shown for the properties such as hypochlorous acid water generated using the electrode structure A. The tap water used here is clean water in Kumagaya City, Saitama Prefecture. The model name AQ-102 manufactured by Shibata Kagaku Co., Ltd. was used for residual chlorine concentration measurement, and the model name B-211 manufactured by Horiba Seisakusho was used for PH measurement. Residual chlorine is the sum of chlorine, hypochlorous acid and sodium hypochlorite converted to residual chlorine, but the test solution in this test is from the neutral side to the alkali side, and the abundance ratio of chlorine is extremely high. Since it is low, residual chlorine may be considered as hypochlorous acid water or the like. Hereinafter, description will be made assuming that residual chlorine generation efficiency = generation efficiency of hypochlorous acid water = residual chlorine generation amount / total electrolytic current.

Table 1 shows the relationship between the electrolysis time and the amount of residual chlorine produced. Although it varies depending on conditions such as salt concentration and current density, the residual chlorine concentration continues to increase until electrolysis time of 24 hours (1440 minutes) and reaches about 800 mg / L (liter) under the above conditions. It can be seen that the condition of T13, that is, 200 mA, 4 hours is sufficient to obtain a residual chlorine concentration of 250 mg / L.

Table 2 shows the results of residual chlorine concentration and residual chlorine generation efficiency when the salt concentration was changed. It shows good residual chlorine generation efficiency over the whole salt concentration range. The total salt concentration range can be used as a target, but taking into consideration the residual chlorine concentration, arrival time, and generation amount of cracked gas, the salt concentration is preferably 500 to 40000 mg / L, more preferably 1000 to 20000 mg / L, and 2000 to 10,000 mg / L. L is even more preferred. It is desirable to perform electrolysis by increasing the voltage at a salt concentration of less than 2000 mg / L and decreasing the voltage at a high concentration exceeding 10,000 mg / L. When using a large amount of hypochlorous acid water, etc., electrolyze and dilute a high-concentration saline solution with good residual chlorine generation efficiency.

Tables 3 and 4 show the results of examining the amount of residual chlorine generated when the amount of saline solution and the electrolysis time were changed. In order to obtain a residual chlorine concentration of 250 mg / L, a salt solution concentration of 2000 mg / L and an average current of 200 mA should be an electrolysis time of 4 hours when the saline solution is 500 ml, an electrolysis time of 8 hours when 1000 ml, and an electrolysis time of 16 hours when 2000 ml. I understand.

Next, Table 5 and Table 6 show experimental results of the residual chlorine generation amount of the present invention with a short electrolysis time. Description of the residual chlorine generation amount in the specification of the invention of Japanese Patent Application Laid-Open No. 2003-053344, which is Patent Document 1. Are shown in Tables 7 and 8 and compared with these.

Although this JP-A-2003-053344 does not include long-term electrolysis data, it is difficult to compare. However, even if a short test is performed, the overall generation efficiency of hypochlorous acid = residual chlorine generation amount / The total electrolysis current shows that the present invention is much better.

Next, the residual chlorine generation amount disclosed in Japanese Patent Laid-Open No. 2007-045573 of Patent Document 3 is shown in Table 10, and the residual chlorine generation amount of the present invention is shown in the experiment described in the invention of Japanese Patent Laid-Open No. 2007-044573. Table 9 shows the results of experiments conducted according to the conditions for comparison.

In the case of the above electrolysis conditions, the residual chlorine generation amount of the present invention and the residual chlorine generation amount of the invention of Japanese Patent Application Laid-Open No. 2007-044573 are almost the same in 3 minutes. In the electrolysis time of 5 minutes or more, the residual chlorine generation amount of the present invention increases in a form almost proportional to the electrolysis time. However, the residual chlorine generation amount of the invention of Japanese Patent Application Laid-Open No. 2007-044573 is The electrolysis time peaked at 3 minutes and decreased to 2.0 mg / L at 5 minutes. This seems to be because the stirring flow of the electrolyte is poor and the supply of chlorine ions to the electrode surface is insufficient.

In contrast, in the present invention, the stirring flow of the electrolytic solution is good, the supply of chlorine ions to the electrode surface is sufficiently performed, and the amount of residual chlorine generated increases with the electrolysis time. Although it is desired to compare by long-term electrolysis to obtain a concentration of hypochlorous acid and the like of 200 mg / L to 300 mg / L required for deodorizing and sterilization, there is no data in the invention of Japanese Patent Application Laid-Open No. 2007-044573, and comparison is not possible. The difference in the concentration of hypochlorous acid, etc. between the present invention and the invention of Japanese Patent Application Laid-Open No. 2007-044573 is gradually increasing as the electrolysis is continued for a long time, and the concentration of hypochlorous acid, etc. is as high as 200 mg / L to 300 mg / L. For use, the present invention is remarkably superior.

Incidentally, although the precipitation of the can stone components into the electrolyte the cathode surface, salt concentration 2000 mg / L, the electrolytic current 200 mA / 2 cm ^2, although hypochlorous acid solution or the like was generated for 200 hours under the conditions of hardness 140 mg / L No deposit of scale stone components on the cathode surface was observed. The saline solution was exchanged every 8 hours per liter. Further, under the electrolysis conditions of a sodium chloride concentration of 500 mg / L, an electrolysis current of 600 mA / 6 cm ² , a hardness of 140 mg / L, and energization for 24 hours, a scale component was slightly deposited on the end surface around the cathode, but there was no deposition on the electrolysis surface . When energized for 48 hours, the cathode electrolysis surface slightly turned white due to the scale component.

The present invention is an electrode structure of a generating device that generates hypochlorous acid water and the like, and a container for storing an electrolysis solution is not limited to a special dedicated container, and may be used for, for example, a commercially available plastic bottle. It can be applied to a production device such as hypochlorous acid water for home use.

A

electrode structure

1, 31 cylindrical body 2 electrode mounting portion 3 anode 4 cathode 5 lid 7 intermediate mounting portion 8 electrode mounting base 10 conductive wire 13 container 18 conductive material 19 protection portion 20 storage portion 38 reducing agent 39 storage chamber 40 Reducing agent storage member

Claims

An electrode structure of a generating device that electrolyzes an electrolyzed liquid to generate hypochlorous acid water, etc., and is fixed to a cylindrical body having a pair of conductive wires inside and to the tip of the cylindrical body And an anode and a cathode that are directly connected to one end of each of the conductive wires or indirectly through another conductive material and are provided to face the electrode mounting portion. An electrode structure of a production device for hypochlorous acid water or the like.
The electrode mounting portion is made of a rigid electrically insulating material, and the electrode mounting base portion to which the both electrodes are mounted, and the intermediate mounting in which one end is fixed to the cylindrical body and the other end is fixed to the electrode mounting base portion. The electrode structure of a generating device for hypochlorous acid water or the like according to claim 1, wherein
The electrode mounting base that constitutes the electrode mounting portion includes a protection portion that protects both electrodes by mounting the electrodes, and a storage portion that is inserted with the conductive material and stores the sealing material. The electrode structure of a production apparatus for hypochlorous acid water or the like according to claim 2.
An electrode structure of a generating device that electrolyzes an electrolytic solution to generate hypochlorous acid water, etc., and a cylindrical body that passes a conductive wire inside and leads out one end of the conductive wire to the outside, An anode and a cathode disposed in a lower part of the cylindrical body, and an electrode mounting portion in which the conductive wire is connected to the electrodes directly or indirectly through another conductive material in the cylindrical body. An electrode structure of a device for generating hypochlorous acid water or the like.
The hypochlorous acid according to any one of claims 1 to 4, wherein a lid provided at an opening of the container is provided at an end of the cylindrical body on the conductive wire drawing side. Electrode structure for water and other generators.
A reducing agent storage member for storing a reducing agent is disposed above the lid, and gas generated by electrolysis is introduced into the reducing agent storage member, reduced by the reducing agent, and then discharged to the outside. The electrode structure of a production apparatus for hypochlorous acid water or the like according to claim 5.