JP6215419B2 - Electrolyzed water generating device, electrode unit, and electrolyzed water generating method - Google Patents

Description

  Embodiments described herein relate generally to an electrolyzed water generating apparatus and an electrolyzed water generating method.

  Those having various functions obtained by electrolyzing water include hypochlorous acid water, alkali ion water, hydrogen water and the like, which are called electrolyzed water. As a method for producing electrolyzed water, for example, there is a method of producing chlorine gas at the anode by electrolyzing an electrolytic solution containing chlorine and reacting this chlorine gas with water to produce hypochlorous acid water and hydrochloric acid water. Are known. Known methods of using hypochlorous acid water include sterilization and deodorization.

  As an electrolyzed water generating device for generating such hypochlorous acid water, electrolytic water is generated by flowing an electrolyte solution and water into a 1-diaphragm 2-chamber electrolysis tank or a 2-diaphragm 3-chamber electrolysis tank. A flowing water type device has been proposed. In addition, as an electrolyzed water generating apparatus having a relatively simple structure without pipes for water supply and drainage, a hydrostatic type (batch) is used in which an electrode unit having an anode and a cathode is placed in a container containing water and the water in the container is electrolyzed. An electrolyzed water generating device of formula) has been proposed.

  For example, in an electrolyzed water generating apparatus that generates hypochlorous acid water as electrolyzed water, the concentration of hypochlorous acid generated is important. Hypochlorous acid is generated up to the amount of current supplied, but normally this current is also used to generate oxygen, so the amount of hypochlorous acid produced is greater than this upper limit. It becomes a small value. That is, the production efficiency of hypochlorous acid with this upper limit value being 100% is usually a value smaller than 100%.

  Furthermore, the hydrostatic (batch type) production apparatus described above has a problem that the production efficiency of hypochlorous acid is lower than that of the flowing water type production apparatus. The reason is the difference in the concentration of supplied chlorine, and the hydrostatic (batch) method is less efficient in producing hypochlorous acid than the flowing water method in which fresh electrolyte is always supplied. There is a problem that is low.

Japanese Patent No. 3287649 Japanese Patent No. 3500173 Japanese Patent No. 3518779 JP 2008-264744 A JP 2003-34889 A Japanese Patent No. 3551288 Japanese Patent No. 4024278 Japanese Patent No. 3798486

  An object of an embodiment of the present invention is to provide an electrolyzed water generating device, an electrode unit, and an electrolyzed water generating method with improved electrolyzed water generation efficiency.

According to the embodiment, the electrolyzed water generating apparatus includes a generating container that stores water, and an electrode unit that is disposed in the generating container. The electrode unit includes a diaphragm having a first chamber in which the first electrode is provided, and a second chamber in which the second electrode is provided, the permeability of separating the first and second chambers, the second An agitating passage that extends from the chamber to a position higher than the first chamber, and the first chamber communicates with the inside of the generation container and stirs the product generated by the first electrode. A chamber is formed, and the introduction path forms a liquid level at a position higher than the water level in the stirring chamber and the water level in the generation vessel .

FIG. 1 is a cross-sectional view of an electrolyzed water generating apparatus according to the first embodiment. FIG. 2 is a perspective view showing an electrode unit of the electrolyzed water generating apparatus according to the first embodiment. FIG. 3 is an exploded perspective view of the electrode unit. FIG. 4 is an exploded perspective view of the electrode unit as seen from different directions. FIG. 5 is a diagram illustrating the relationship between the water head difference and the generation efficiency. FIG. 6 is a cross-sectional view of the electrolyzed water generating device according to the second embodiment.

  Various embodiments will be described below with reference to the drawings. In addition, the same code | symbol shall be attached | subjected to a common structure through embodiment, and the overlapping description is abbreviate | omitted. In addition, each drawing is a schematic diagram for promoting the embodiment and its understanding, and its shape, dimensions, ratio, etc. are different from the actual device, but these are considered in consideration of the following description and known techniques. The design can be changed as appropriate.

(First embodiment)
FIG. 1 is a cross-sectional view of the electrolyzed water generating apparatus according to the first embodiment. In this embodiment, the electrolyzed water generating apparatus 10 is configured as, for example, a hydrostatic or batch-type electrolyzed water generating apparatus that generates 1.2 L of neutral hypochlorous acid. The electrolyzed water generating device 10 includes a generation container (water tank) 12 that contains a liquid such as water, a lid 14 that is detachably attached to an upper end opening of the generation container 12, and a lid 14 that closes the upper end opening. An electrode unit 16 that is supported and disposed in the generation container 12 and a power supply unit 18 that supplies electrolytic power to the electrodes of the electrode unit 16 are provided. The lid body 14 has a pouring port 15 for injecting or draining liquid into the production container 12. The power feeding unit 18 is connected to a DC power source (not shown).

The production | generation container 12 is formed with the glass and resin excellent in acid resistance and alkali resistance, such as borosilicate glass, vinyl chloride, a polyprene, and polyethylene, for example, and is formed in the truncated cone shape. The generation container 12 has an upper end edge 12a, and a plurality of scales 12b indicating the amount of liquid to be stored are formed on the peripheral wall of the generation container. These scales 12b are provided as a guideline for the optimal height of the water surface WF of the water stored in the production container 12.
The lid 14 is formed of a resin having excellent acid resistance and alkali resistance, such as vinyl chloride, polyprene, and polyethylene, and has a flat circular shape.

  FIG. 2 is a perspective view showing the electrode unit, and FIGS. 3 and 4 are exploded perspective views of the electrode unit. As shown in FIGS. 1 to 4, the electrode unit 16 includes an elongated rectangular prism-shaped intermediate casing 20 and a cathode-side casing 30, and an elongated rectangular box-shaped stirring case 40. The cathode side case 30 and the stirring case 40 are joined to both sides of the intermediate case 20.

  The intermediate housing 20 has a rectangular intermediate chamber (electrolyte solution chamber) 22 that accommodates, for example, saturated brine as an electrolyte solution in the lower half thereof. The intermediate chamber 22 is open on both side surfaces 21 a and 21 b of the intermediate housing 20. The intermediate casing 20 is formed at the upper end, and has an inlet 24 and an exhaust port 25 for injecting an electrolyte solution, an introduction path 26 that communicates the inlet 24 and the intermediate chamber 22, an exhaust port 25, and an intermediate chamber. And an exhaust passage 27 that communicates with 22. That is, the introduction path 26 extends from the intermediate chamber 22 to the upper end of the intermediate casing 20 and extends to a position higher than the water level WF of the water stored in the generation container 12. The cross-sectional area of the introduction path 26 is formed smaller than the cross-sectional area of the intermediate chamber 22. The intermediate chamber 22 and the introduction path 26 can be filled with the electrolyte solution from the injection port 24 through the introduction path 26. When injecting the electrolyte solution, the air in the intermediate chamber 22 is exhausted to the outside through the exhaust path 27 and the exhaust port 25.

  A rectangular first diaphragm 50 a is provided so as to close one opening of the intermediate chamber 22, and a rectangular second diaphragm 50 b is provided so as to close the other opening of the intermediate chamber 22. A rectangular plate-like cathode (electrode) 52 is provided so as to overlap the first diaphragm 50a. A region facing the intermediate chamber 22 of the cathode 52 forms a reaction effective region. The cathode 52 has a connection terminal 52 a, and the connection terminal 52 a extends from the cathode 52 to the vicinity of the upper end of the intermediate housing 20.

  A rectangular plate-like anode (electrode) 54 is provided so as to overlap the second diaphragm 50b. The anode 54 is disposed to face the cathode 52 with the intermediate chamber 22 and the first and second diaphragms 50a and 50b interposed therebetween. A region of the anode 54 facing the intermediate chamber 22 forms a reaction effective region. The anode 54 has a connection terminal 54 a, and this connection terminal 54 a extends from the anode 54 to the vicinity of the upper end of the intermediate housing 20.

  As the first diaphragm 50a and the second diaphragm 50b, a porous film having water permeability formed in a thin rectangular flat plate having a film thickness of about 100 to 200 μm is used. The first diaphragm 50 a is disposed to face the side surface 21 a of the intermediate casing 20, and the peripheral edge thereof is in close contact with the intermediate casing 20. Similarly, the first diaphragm 50 b is disposed to face the other side surface 21 b of the intermediate casing 20, and the peripheral edge thereof is in close contact with the intermediate casing 20.

  The first diaphragm 50a and the second diaphragm 50b supply sufficient electrolyte around the anode 54 and the cathode 52 by controlling the water permeability, suppress the generation of oxygen gas at the anode 54, and efficiently generate chlorine gas. It is configured. In the present embodiment, the first diaphragm 50a and the second diaphragm 50b are diaphragms having water permeability. For example, the first diaphragm 50a and the second diaphragm 50b use porous membranes such as a water-permeable microfiltration membrane (Microfiltration Membrane: MF membrane) and an ultrafiltration membrane (Ultrafiltration Membrane: UF membrane), respectively. The first diaphragm 50a and the second diaphragm 50b are formed of, for example, an ultrafiltration membrane or a microfiltration membrane having a water permeability of 0.06 to 600 mL / min per 1 cm 2 (square centimeter) when a water pressure of 1 MPa is applied. ing. The first diaphragm 50a and the second diaphragm 50b are each formed of a material containing, for example, titanium oxide and polyvinylidene fluoride (PVDF).

  The cathode 52 and the anode 54 are metal flat plates having a thickness of about 1 mm and are formed in a substantially rectangular shape. A fine through hole (not shown) for allowing liquid to pass through is formed in the central portion (effective reaction region) of the cathode 52 and the anode 54. The cathode 52 is disposed to face the first diaphragm 50a and is in close contact with the first diaphragm 50a. The anode 54 is disposed to face the second diaphragm 50b and is in close contact with the second diaphragm 50b.

  As shown in FIGS. 1 to 4, the cathode housing 30 is joined to the intermediate housing 20 in substantially parallel to the side surface 21 a on the cathode 52 side of the intermediate housing 20. The cathode side housing 30 has a cathode chamber (second generation chamber) 32 defined by a recess formed in the lower half thereof. The cathode chamber 32 is open at the surface facing the cathode 52 and is in contact with the entire area of the cathode 52. The other surface of the cathode chamber 32 is closed by the wall portion of the cathode side housing 30. Thus, the cathode 52 is provided in the cathode chamber 32. Further, the cathode side housing 30 has an injection port 34 formed at the upper end, and a flow passage 35 communicating the injection port 34 and the cathode chamber 32. The cathode chamber 32 can be filled with water from the inlet 34 through the flow passage 35.

  As shown in FIGS. 1 to 4, the stirring case 40 is formed in a rectangular box shape and joined to the side surface 21 b of the intermediate housing 20 so as to cover the anode 54. The stirring case 40 has a rectangular opposing wall 41a that faces the anode 54 with a gap, and a pair of side walls 41b and 41c that are erected along both side edges of the opposing wall and joined to the intermediate housing 20. And a stirring chamber (first generation chamber, anode chamber) 44 defined by the facing wall 41a and the side walls 41b and 41c and in contact with the reaction region of the anode 54. Thereby, the anode 54 is provided in the stirring chamber 44. Further, the stirring case 40 has a plurality of partition walls (fins) 46 disposed in the stirring chamber 44. The plurality of partition walls 46 extend substantially horizontally, and are provided at intervals in the longitudinal direction (height direction) of the stirring case 40. Further, a central rib 45 extending in the vertical direction is erected on the inner surface of the opposing wall 41 a, and the central rib 45 extends across the plurality of partition walls 46. The stirring chamber 44 is partitioned into a plurality of chambers arranged in the longitudinal direction of the stirring case 40 by a plurality of partition walls 46 and a central rib 45, and each chamber is in contact with the anode 54. The plurality of chambers communicate with or open to the outside through a plurality of communication holes 47 formed in the opposing wall 41a. Furthermore, the lower end and the upper end of the stirring case 40 are opened to form a drain port 48a and a water intake port 48b, respectively. Further, almost the entire side walls 41 a and 41 b are opened, and a water intake port 49 communicating with the stirring chamber 44 is formed. Water is taken into the stirring chamber 44 from the outside (inside the production vessel 12) through these water intakes 48b and 49, and is allowed to come out into the production vessel 12 through the communication hole 47 and the drainage port 48a.

  The intermediate casing 20, the cathode-side casing 30, and the stirring case 40 of the electrode unit 16 described above are each formed of a resin having excellent acid resistance and alkali resistance, such as vinyl chloride, polyprene, and polyethylene.

  As shown in FIG. 1, the electrode unit 16 configured as described above is supported by the lid body 14 and hangs down from the lid body 14 into the production container 12. The upper end portion of the intermediate casing 20 and the upper end portion of the cathode side casing 30 are fitted into the lid body 14 and project outside through the lid body 14. That is, the introduction path 26 and the exhaust path 27 of the intermediate casing 20 extend to a position higher than the upper end edge 12a of the generation container 12. Most of the intermediate housing 20, most of the cathode-side housing 30, and the stirring case 40 extend downward from the lid body 14 and are disposed inside the generation container 12. The connection terminal 52 a of the cathode 52 and the connection terminal 54 a of the anode 54 are each connected to the power feeding unit 18 via the wiring 60.

  Unlike the intermediate chamber 22 and the cathode chamber 32, the stirring chamber 44 does not have a sealed structure, that is, has a structure opened in the production container 12, and therefore the stirring chamber 44 of the electrode unit 16 also has a structure. The entire production vessel 12 including the above forms a large anode chamber. Therefore, the electrolyzed water generating apparatus 10 has a two-diaphragm three-chamber structure having the intermediate chamber 22, the cathode chamber 32, and the anode chamber 44 (12) as a whole.

Next, the operation of electrolyzing salt water and generating acidic water (hypochlorous acid water and hydrochloric acid) and alkaline water (sodium hydroxide) by the electrolyzed water generating apparatus 10 configured as described above will be described.
First, as shown in FIG. 1, water is introduced into the production container 12 through the pouring outlet 15 and the water is accommodated in the production container 12. Part of the injected water enters the stirring chamber 44 through the communication hole 47 and the water intake ports 48a and 49 of the stirring case 40, and the stirring chamber 44 is filled with water. When pouring water, the amount of water injected is adjusted using the scale 12b as a guide so that the height of the water surface WF substantially coincides with the scale 12b. In this embodiment, the water surface WF is formed at a position lower than the upper end edge 12a of the production container 12 in the stirring chamber 44 or more by putting water up to the height of the scale 12b.

  Further, water is injected from the injection port 34 into the cathode chamber 32 to fill the cathode chamber 32 with water. At this time, the water level in the cathode chamber 32 is desirably set higher than the cathode 52 and not more than the water level WF in the production vessel 12. Further, salt water (electrolyte solution) is injected from the inlet 24 to fill most of the intermediate chamber 22 and the introduction path 26 with salt water. At this time, a predetermined amount of the salt water is formed so that the water surface (liquid surface) CF of the salt water is formed in a position higher than the upper end edge 12a of the generation container 12, that is, a position higher than the water surface WF. ,inject. Thereby, a difference (water head difference) D between the water surface WF of the water in the production container 12 and the surface of the salt water, for example, 100 mm is generated. Therefore, the water head pressure corresponding to this water head difference is applied to the salt water in the intermediate chamber 22.

  In the above state, a negative voltage and a positive voltage are respectively supplied from the power supply unit 18 to the cathode 52 and the anode 54, and the salt water in the intermediate chamber 22 is electrolyzed by an electrolytic reaction. Sodium ions ionized in the salt water in the intermediate chamber 22 are attracted to the cathode 52 and flow into the cathode chamber 32 through the first diaphragm 50a. In the cathode chamber 32, water is electrolyzed by the cathode 52 to generate hydrogen gas, and a sodium hydroxide aqueous solution (alkaline water) is generated by the hydrogen gas and sodium ions.

  Chlorine ions ionized in the salt water in the intermediate chamber 22 are attracted to the anode 54, pass through the second diaphragm 50 b, and flow into the stirring chamber (anode chamber, generation chamber) 44. In the stirring chamber 44, chlorine ions give electrons to the anode 54 to generate chlorine gas. The generated chlorine gas is dissolved in water in the stirring chamber 44 to generate acidic water (hypochlorous acid water and hydrochloric acid) from the water stored in the generation container 12. The acidic water generated in this way is supplied from the stirring chamber 44 to the water in the generation container 12 through the communication hole 47. At this time, the plurality of partition walls (fins) 46 provided in the agitation chamber 44 assist the agitation of the anode side electrolytic product to the production vessel 12 and agitation from the intermediate chamber 22 via the second diaphragm 50b. It plays the role of temporarily increasing the concentration of the electrolyte diffusing into the chamber 44 around the electrode. Moreover, the water in the production | generation container 12 is taken in in the stirring chamber 44 at any time, turns into acidic water, and is mixed with the water in the production | generation container 12. Thereby, hypochlorous acid water having a desired pH is generated in the generation container 12.

  The produced hypochlorous acid water can be poured from the pouring outlet 15 of the production container 12 to any container, cup, or other place. The alkaline water generated in the cathode chamber 32 can be discharged from the inlet 34 and used as appropriate.

  In the electrolyzed water generating apparatus 10 and the electrolyzed water generating method described above, the water head difference D is set between the water surface WF of the water in the generating container 12 and the liquid surface CF of the electrolyte solution (salt water). The water head pressure is applied to the salt water in 22. And the production efficiency of hypochlorous acid can be improved by applying such a water head pressure. This will be described below.

  FIG. 5 shows the relationship between the difference (water head difference) D between the level of the electrolyte solution and the level of acidic water (anodic water) and the generation efficiency of hypochlorous acid. As can be seen from FIG. 5, when the water head difference D increases, the production efficiency of hypochlorous acid increases almost linearly. It can be seen that the generation efficiency of hypochlorous acid is improved by about 10% when the water head difference D is set to 100 mm as compared with the case where the water head difference is zero. By applying the water head difference D, water head pressure is generated, and a large pressure acts on the electrolyte solution (salt water) stored in the intermediate chamber 22. As a result, sodium ions and chlorine ions are likely to exude into the cathode chamber 32 and the stirring chamber 44 through the first diaphragm 50a and the second diaphragm 50b, and the amount of ions supplied increases.

In the present embodiment, as described above, the electrode unit 16 has the introduction path 26 extending from the intermediate chamber 22 to above the upper end edge 12a of the production container 12, and the electrolyte solution is supplied to the intermediate chamber 22 and the introduction path. The liquid level CF is formed at a position higher than the upper end edge 12a. Further, the water (anode water) in the generation container 12 is filled only up to the upper part of the cathode chamber 32 and the stirring chamber 44, and the water surface WF is formed at a position lower than the upper end edge 12 a of the generation container 12. Yes. Thereby, the liquid surface CF of the electrolyte solution (salt water) is higher than the water surface WF of the acidic water, and the difference (water head difference) D is about 100 mm. Therefore, the production efficiency of hypochlorous acid water can be improved by about 10% by the effect of the water head difference (water head pressure) D.
From the above, according to the present embodiment, an electrolyzed water generating apparatus, an electrode unit, and an electrolyzed water generating method with improved electrolyzed water generation efficiency can be provided.

  Next, an electrolyzed water generating apparatus according to another embodiment will be described. In other embodiments described below, the same parts as those in the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted, and the parts different from those in the first embodiment. Will be described in detail.

(Second Embodiment)
FIG. 6 is a cross-sectional view illustrating the electrolyzed water generating device according to the second embodiment. According to the second embodiment, the electrode unit 16 is configured as a one-diaphragm two-chamber electrode unit. That is, the electrode unit 16 omits the cathode chamber and the cathode-side casing, and integrates the intermediate chamber 22 and the cathode chamber (second generation chamber). The intermediate housing 20 has a side wall in which one side of the intermediate chamber 22, that is, the side surface opposite to the anode 54 is closed. A cathode 52 is disposed in the intermediate chamber 22 and faces and is adjacent to the first diaphragm 50b. An electrolyte solution is injected into the intermediate chamber 22 through the introduction path 26, and the electrolyte solution fills most of the intermediate chamber 22 and the introduction path 26 and is located at a position higher than the water level WF of water in the production container 12, The liquid level CF is formed at a position higher than the upper end edge 12a of the generation container 12.
In 2nd Embodiment, the other structure of the electrolyzed water generating apparatus 10 is the same as the electrolyzed water generating apparatus of 1st Embodiment mentioned above.

Also in the second embodiment configured as described above, the liquid level CF of the electrolyte solution is maintained higher than the water level WF of the anodic water (water in the generation container). A similar effect can be obtained, and an electrolyzed water generating apparatus with improved electrolyzed water generation efficiency can be provided. Moreover, the 1-diaphragm 2-chamber type electrolyzed water generating apparatus has an advantage that the structure of the electrode unit can be simplified as compared with the 2-diaphragm 3-chamber type.
The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.
For example, in the above-described embodiment, the electrolyte solution is salt water and the generated water is hypochlorous acid water. However, the present invention is not limited thereto, and the electrolyzed water generating apparatus according to this embodiment includes various electrolyte solutions and various types. The produced water can be applied. A production | generation container is not limited to embodiment mentioned above, A various container, a water tank, etc. can be applied if it can store water.

  The cathode and the anode are not limited to a rectangular shape, and various other shapes can be selected. In the embodiment described above, a sealing material that seals between members is not used, but a configuration in which a sealing material is formed between members may be employed. In this case, since the sealing property is further improved, an effect of maintaining the purity of the generated electrolyzed water can be expected.

  In the above-described embodiment, the porous membrane having water permeability is used as the diaphragm, but the diaphragm is not limited to this and may be an ion-exchange membrane having ion selectivity. In the embodiment described above, the ions that are desired to permeate the diaphragm are chloride ions on the anode side and sodium ions on the cathode side, both of which are ions, so that ions can be transmitted by using an ion exchange membrane. However, when an ion exchange membrane is used, an anion exchange membrane is used on the anode side and a cation exchange membrane is used on the cathode side.

DESCRIPTION OF SYMBOLS 10 ... Electrolyzed water production | generation apparatus, 12 ... Production | generation container, 14 ... Lid body, 16 ... Electrode unit,
18 ... Power feeding unit, 20 ... Intermediate housing, 22 ... Intermediate chamber, 24 ... Inlet, 26 ... Introduction path,
30 ... Cathode side housing, 32 ... Cathode chamber, 40 ... Stirring case,
44 ... Stirring chamber (generation chamber, anode chamber), 50a ... first diaphragm, 50b ... second diaphragm,
52 ... Cathode, 54 ... Anode, WF ... Water surface, CF ... Liquid surface

Claims (13)

A production container containing water;
An electrode unit disposed in the production container,
The electrode unit includes a diaphragm having a first chamber in which the first electrode is provided, and a second chamber in which the second electrode is provided, the permeability of separating the first and second chambers, the second An introduction path extending from the chamber to a position higher than the first chamber ,
The first chamber communicates with the generation container and forms a stirring chamber for stirring the product generated by the first electrode ;
The electrolyzed water generating device in which the introduction path forms a liquid level at a position higher than the water level in the stirring chamber and the water level in the generating container .   The electrolyzed water generating apparatus according to claim 1, wherein the first electrode is an anode and the second electrode is a cathode.   The electrolyzed water generating apparatus according to claim 1, wherein the electrode unit has a stirring case that forms the stirring chamber.   The stirring case has a communication port for discharging the product generated in the stirring chamber into the generation container, and a water intake port for taking water in the generation container into the stirring chamber. The electrolyzed water generating apparatus according to claim 3.   The electrolyzed water generating apparatus according to claim 4, wherein the communication port releases gas generated by the first electrode.   The electrolyzed water generating apparatus according to any one of claims 3 to 5, wherein the stirring case has a plurality of partition walls that partition the stirring chamber into a plurality of chambers. Further comprising a support body detachably attached to the production container,
The electrode unit, the electrolytic water generation apparatus according to any one of the support from claim 1 supported on 6. A production container containing water;
  An electrode unit disposed in the production container,
  The electrode unit includes a first chamber in which a first electrode is provided, a second chamber in which a second electrode is provided, a water-permeable diaphragm that partitions the first chamber and the second chamber, and the second chamber An introduction path extending from the chamber to a position higher than the first chamber,
  The electrolyzed water generating apparatus, wherein the first chamber communicates with the generation container and forms a stirring chamber for stirring the product generated by the first electrode. An electrolyte solution chamber containing the electrolyte solution;
An electrolyte solution introduction path for guiding the electrolyte solution to the electrolyte solution chamber;
A stirring case provided with an electrode and having a stirring chamber for stirring the product generated by the electrode;
A diaphragm having water permeability to partition between the electrolyte solution chamber and the stirring case,
The electrolytic unit, wherein the electrolyte solution introduction path extends upward to a position higher than the stirring case, and is formed so as to be filled with the electrolyte solution to a position higher than the stirring case . The electrolyte solution introduction path has an inlet provided at a position higher than the stirring case,
10. The electrolysis unit according to claim 9, wherein the electrolyte solution can be injected from the injection port into the electrolyte solution introduction path and the electrolyte solution chamber, and can be filled to the vicinity of the injection port . The electrode unit according to claim 9 , wherein the stirring case has a communication port that discharges a product generated in the stirring chamber, and a water intake port for taking water into the stirring chamber . The electrode unit according to claim 11 , wherein the communication port releases gas generated by the first electrode. The electrode unit according to any one of claims 9 to 12 , wherein the stirring case has a plurality of partitions that partition the stirring chamber into a plurality of chambers.

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