WO2024252814A1 - 電解液体生成装置 - Google Patents
電解液体生成装置 Download PDFInfo
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- WO2024252814A1 WO2024252814A1 PCT/JP2024/015986 JP2024015986W WO2024252814A1 WO 2024252814 A1 WO2024252814 A1 WO 2024252814A1 JP 2024015986 W JP2024015986 W JP 2024015986W WO 2024252814 A1 WO2024252814 A1 WO 2024252814A1
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- liquid
- electrolytic
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- flow path
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/13—Ozone
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
- C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/63—Holders for electrodes; Positioning of the electrodes
Definitions
- This disclosure relates to an electrolytic liquid generating device.
- an ozone water generator is known as an electrolytic liquid generator that generates ozone water (i.e., an example of an electrolytic liquid) in which ozone (i.e., an example of an electrolytic product) is dissolved in water.
- the electrolysis unit has a conductive film interposed between an anode and a cathode. Then, by generating a potential difference between the anode and the cathode while the electrolysis unit is immersed in water, an electrolytic process is performed that causes an electrochemical reaction in the water, and ozone water is generated (see, for example, Patent Document 1).
- the present disclosure aims to provide an electrolytic liquid generating device that can improve the efficiency of generating electrolytic liquid in the electrolysis section.
- the electrolytic liquid generating device includes an electrolytic unit and a housing.
- the electrolytic unit is arranged such that a conductive film is sandwiched between a first electrode and a second electrode, and electrolytically processes a liquid.
- the housing has the electrolytic unit arranged inside.
- the first electrode, the second electrode, and the conductive film are arranged to be aligned in a first direction.
- the first direction is the stacking direction of the conductive film.
- the housing has an inlet through which the liquid supplied to the electrolytic unit flows in, and an outlet through which the electrolytic liquid generated in the electrolytic unit flows out.
- a flow path for the liquid and the electrolytic liquid is formed between the inner circumferential surface of the housing and the electrolytic unit.
- the electrolytic unit has a space. The space penetrates the electrolytic unit and flows the liquid from the first electrode side to the second electrode side. The space opens to the flow path, and at least a portion of the conductive film is exposed to the flow path.
- An electrolytic liquid generating device includes an electrolytic unit and a housing.
- the electrolytic unit is arranged such that a conductive film is sandwiched between a first electrode and a second electrode, and performs electrolytic processing of a liquid.
- the electrolytic unit is arranged inside the housing.
- the first electrode, the second electrode, and the conductive film are arranged to be aligned in a first direction.
- the first direction is a stacking direction of the conductive film.
- the housing has an inlet through which the liquid supplied to the electrolytic unit flows in, and an outlet through which the electrolytic liquid generated in the electrolytic unit flows out.
- a flow path for the liquid and the electrolytic liquid is formed between the inner circumferential surface of the housing and the electrolytic unit.
- the flow path includes an outer flow path located between the inner circumferential surface of the housing and the first electrode.
- the cross-sectional area of the outlet side normal to the second direction which is the flow path direction of the liquid, is smaller than the cross-sectional area of the inlet side normal to the second direction.
- the electrolytic liquid generating device makes it possible to improve the efficiency of generating electrolytic liquid in the electrolysis section.
- FIG. 1 is an exploded perspective view of an electrolytic liquid generating device according to an embodiment.
- FIG. 2 is a plan view of the electrolysis unit of the electrolytic liquid production device according to the embodiment.
- FIG. 3 is a cross-sectional view of the electrolytic liquid production device according to the embodiment, the normal direction being the third direction.
- FIG. 4 is a schematic perspective view showing a liquid flow path in the electrolytic liquid generating device according to the embodiment.
- FIG. 5 is a cross-sectional view of the electrolytic liquid production device according to the embodiment, the normal direction being the second direction.
- Fig. 1 is an exploded perspective view of the electrolytic liquid generation device 100 according to the embodiment.
- Fig. 2 is a plan view of the electrolytic section 1 of the electrolytic liquid generation device 100 according to the embodiment.
- Fig. 3 is a cross-sectional view of the electrolytic liquid generation device 100 according to the embodiment, the normal direction being the second direction D2.
- Fig. 4 is a schematic perspective view showing a liquid flow path in the electrolytic liquid generation device 100 according to the embodiment.
- Fig. 5 is a cross-sectional view of the electrolytic liquid generation device 100 according to the embodiment, the normal direction being the third direction D3.
- the electrolytic liquid generating device 100 generates an electrolytic liquid by subjecting a liquid to electrolytic processing.
- the electrolytic liquid generating device 100 is an ozone water generating device that uses tap water supplied from a waterworks as the liquid and generates ozone water as the electrolytic liquid.
- the electrolytic liquid generating device 100 which is an ozone water generating device, generates ozone (i.e., an example of an electrolysis product) by electrolyzing tap water, and dissolves the ozone in the tap water to generate ozone water.
- Ozone water is effective for sterilization, deodorization, and decomposition of organic matter, and is therefore widely used in various fields such as water treatment, hygiene, food, and medicine.
- the electrolytic liquid generating device 100 includes an electrolytic unit 1, an elastic body 2, a housing 3, and a power supply 44.
- the electrolytic unit 1 includes a pair of electrodes, a first electrode and a second electrode, and a conductive film 12 sandwiched between the pair of electrodes.
- the first electrode, the conductive film 12, and the second electrode are stacked in their respective thickness directions.
- the first electrode is an anode 13
- the second electrode is a cathode 11.
- the electrolytic unit 1 electrolyzes the liquid.
- the housing 3 has the electrolytic unit 1 disposed therein.
- the electrolytic unit 1 includes a space portion 15 penetrating the electrolytic unit 1.
- hatching showing a cross section is omitted in Figure 4.
- the arrows indicate the flow of tap water (i.e., an example of a liquid).
- tap water flows from the outer flow path 62 through the space 15 and into the through hole 111 of the cathode 11. Therefore, the electrolytic product does not remain near the electrolytic unit 1 but diffuses. Therefore, the electrolytic product is less likely to inhibit the generation of ozone by electrolysis, and it is possible to improve the efficiency of ozone water generation.
- the stacking direction of the cathode 11, the conductive film 12, and the anode 13 in the electrolytic section 1 described later is defined as a first direction D1
- the longitudinal direction of the housing 3 described later is defined as a second direction D2
- the short side direction (i.e., width direction) of the housing 3 is defined as a third direction D3.
- these directions are not intended to limit the directions in which the electrolytic liquid generating device 100 is used.
- the arrows indicating "D1", “D2", and “D3" in the drawings are merely indicated for the purpose of explanation, and none of them have any substance.
- the electrolytic liquid generating device 100 includes an electrolysis unit 1, an elastic body 2, a housing 3, a power supply 44, and a plurality of O-rings 5 (two O-rings 5 in the illustrated example). As shown in FIG. 1, the electrolytic liquid generating device 100 according to the embodiment further includes a plurality of nuts 45 (two nuts 45 in the illustrated example), a plurality of spring washers 46 (two spring washers 46 in the illustrated example), and a plurality of washers 47 (two washers 47 in the illustrated example).
- the electrolysis unit 1 and the elastic body 2 are disposed inside the housing 3.
- the housing 3 includes a case 31 and a cover 32, as shown in FIG.
- the case 31 includes a case body 311.
- the case body 311 is formed in a hollow rectangular parallelepiped shape with one end in the first direction D1 (see the top surface in Figure 1) open. That is, the case body 311 has a storage section 3111. Furthermore, a connection section 312 and a connection section 313 are formed at both ends of the case 31 in the second direction D2.
- a liquid inlet is formed in the connection section 312, and the inlet is connected to the storage section 3111.
- an electrolytic liquid outlet is formed in the connection section 313, and the outlet is connected to the storage section 3111. That is, the liquid that flows in from the inlet is electrolytically treated in the storage section 3111, and flows out from the outlet as electrolytic liquid.
- the cover 32 is a rectangular plate.
- the cover 32 contacts the case body 311 along the first direction D1 and covers the opening of the storage section 3111 of the case body 311.
- a row of multiple protrusions is formed on the inner surface of the cover that faces the opening of the storage section 3111 of the case body 311.
- the case body 311 also has a through hole (i.e., an example of an electrode pin hole) for passing the electrode pin 41 through.
- the case 31 and cover 32 are made of a non-conductive resin such as acrylic.
- the housing section 3111 of the case 31 houses the elastic body 2, the power supply body 44, the anode 13, the conductive film 12, and the cathode 11. More specifically, the elastic body 2, the power supply body 44, the anode 13, the conductive film 12, and the cathode 11 are stacked in this order along the first direction D1.
- the elastic body 2 is formed in a rectangular parallelepiped shape using an elastic material such as rubber.
- the elastic body 2 includes a rectangular parallelepiped main body and multiple protrusions.
- the multiple protrusions are formed on each of the ends in the second direction D2 and the ends in the third direction D3.
- the multiple protrusions are positioning protrusions that position the power supply 44 and the anode 13.
- the elastic body 2 presses the power supply 44 and the anode 13 in the first direction D1.
- the power supply body 44 is a conductor for supplying power to the anode 13.
- the power supply body 44 is formed in a rectangular shape that is elongated in the second direction D2.
- One surface (i.e., the first surface) of the power supply body 44 is in contact with the elastic body 2, and at least a portion of the other surface (i.e., the second surface) is in contact with the anode 13.
- the power supply body 44 is formed, for example, from a titanium alloy.
- the anode 13 is a first electrode for electrolyzing tap water, which is a liquid.
- the anode 13 is formed in a rectangular shape that is elongated in the second direction D2.
- One surface (i.e., the first surface) of the anode 13 contacts the power supply 44, and at least a portion of the other surface (i.e., the second surface) contacts the conductive film 12.
- the anode 13 is formed, for example, by forming a conductive diamond film on a rectangular plate-shaped conductive substrate made of silicon.
- the conductive film 12 is located between the anode 13 and the cathode 11.
- the conductive film 12 is, for example, a proton conductive ion exchange film.
- the conductive film 12 also has a plurality of slits 123 extending in the third direction D3.
- the conductive film 12 is, for example, comb-shaped.
- the conductive film 12 includes a main piece 121 that is elongated in the second direction D2 and a plurality of protrusions 122 whose longitudinal direction is the third direction D3.
- Each of the plurality of slits 123 is sandwiched in the second direction D2 between two protrusions 122 adjacent to each other in the second direction D2.
- the plurality of protrusions 122 are arranged at equal intervals along the second direction D2.
- each of the plurality of protrusions 122 may be any direction that intersects with the second direction D2, and does not necessarily have to be the third direction D3.
- the width of the through hole between two adjacent protrusions 122 of the conductive film 12 in the third direction D3 is greater than the width of the anode 13 in the third direction D3.
- the cathode 11 is a second electrode for electrolyzing liquid tap water.
- the cathode 11 is electrically connected to an electrode pin 41, which will be described later.
- the cathode 11 has a rectangular shape that is elongated in the second direction D2, and is in contact with the conductive film 12 in the first direction D1.
- the cathode 11 is made of a conductive material, such as a titanium alloy.
- the cathode 11 has a number of through holes 111 arranged at equal intervals along the second direction D2.
- Each of the multiple through holes 111 has the same shape, for example, a V-shape. This allows at least a part of the interface between the cathode 11 and the conductive film 12 to come into contact with a liquid (for example, tap water). Therefore, ozone generated on the surface of the anode 13 is easily dissolved in the liquid (for example, tap water) in the space between the cathode 11 and the cover 32 (hereinafter referred to as the "main flow path"). It is also possible to reduce the decrease in ozone generation efficiency caused by ozone gas remaining inside the electrolysis section.
- the width of the multiple through holes 111 of the cathode 11 in the third direction D3 is greater than the width of the slits 123 of the conductive film 12 in the third direction D3. Therefore, in a plan view from the first direction D1, the inside of the through hole 111 has a portion that does not overlap with either the conductive film 12 or the anode 13. That is, the electrolysis unit 1 has a through hole that penetrates the electrolysis unit 1 in the first direction D1. Therefore, since a liquid (e.g., tap water) can pass through the electrolysis unit 1 along the first direction D1, the ozone concentration in the ozone water in the storage portion 3111 of the case 31 is made uniform, and the generation efficiency of the ozone water is improved.
- a liquid e.g., tap water
- Each of the cathode 11 and the power supply 44 is connected to an electrode pin 41.
- Each of the multiple electrode pins 41 is elongated in the first direction D1. That is, the longitudinal direction of each electrode pin 41 is parallel to the first direction D1.
- a first end of each electrode pin 41 in the first direction D1 (see the upper end of FIG. 1) is welded to the power supply 44 or the cathode 11.
- a screw thread is provided in a predetermined range of each electrode pin 41, including a second end in the first direction D1 (see the lower end of FIG. 1).
- An O-ring 5 a washer 47, a spring washer 46, and a nut 45 are attached to each of the pair of electrode pins 41.
- Electrolysis Unit In the electrolysis unit 1, the anode 13 and the cathode 11 face each other in the first direction D1.
- the conductive film 12 is sandwiched between the anode 13 and the cathode 11.
- the width d2 of the slit 123 between two adjacent protrusions 122 of the conductive film 12 is larger than the width d1 of the anode 13.
- the width d2 of the slit 123 is equal to the length d2 of the protrusion 122 in the third direction D3. Therefore, in a plan view from the first direction D1, there is a portion of the slit 123 between the two adjacent protrusions 122 of the conductive film 12 that does not overlap with the anode 13.
- the width d3 of each of the multiple through holes 111 of the cathode 11 is greater than the width d2 of the slit 123 between two adjacent protrusions 122 of the conductive film 12. Therefore, in a plan view from the first direction D1, there is a portion of the through hole 111 of the cathode 11 that does not overlap with the conductive film 12. Furthermore, in the third direction D3, the width d3 of each of the multiple through holes 111 of the cathode 11 is greater than the width d1 of the anode 13.
- the electrolysis unit 1 has multiple through holes 14 arranged at intervals in the second direction.
- the space 15 is a flow path for tap water (i.e., an example of a liquid) that passes through the electrolysis unit 1 in the first direction D1.
- the space 15 includes the through hole 111 of the cathode 11 and the slit 123 of the conductive film 12.
- the through hole 14 is connected to the through hole 111 of the cathode 11 and the slit 123 of the conductive film 12 at least in the third direction D3.
- the slit 123 or through hole 111 that is not directly connected to the through hole 14 also indirectly connects to the through hole 111 via the slit 123 or through hole 111 that is connected to the through hole 14.
- tap water (i.e., an example of a liquid) flowing into the through hole 14 of the space 15 not only passes through the through hole 14 along the first direction D1, but also flows into the slit 123 of the conductive film 12 and the through hole 111 of the cathode 11, as shown in FIG. 4.
- tap water (i.e., an example of a liquid) flowing into the slit 123 of the conductive film 12 also passes through the space 15 and flows out from the through hole 111 of the cathode 11.
- tap water (i.e., an example of a liquid) flowing into the space 15 along the first direction D1 also flows in the second direction D2 and the third direction D3 on the cover 32 side from the anode 13.
- a main flow path 61 in which tap water (i.e., an example of a liquid) mainly flows in the second direction D2, is formed between the electrolysis unit 1 and the cover 32.
- an outer flow path 62 in which tap water (i.e., an example of a liquid) mainly flows in the second direction D2, is formed between the electrolysis unit 1 and the inner surface of the case body 311.
- ozone When a voltage is applied to the electrolysis unit 1, ozone is generated at the interface between the anode 13 and the conductive film 12.
- the ozone dissolves in the tap water flowing through the main flow path 61 at the through-hole 111 of the cathode 11, and ozone water (i.e., an example of an electrolytic liquid) is generated in the main flow path 61.
- the hydroxide ions in the tap water are consumed by electrolysis, causing the proton concentration to increase.
- the hydroxide ion concentration near the anode 13 decreases, which may reduce the efficiency of ozone generation.
- the pH near the anode 13 decreases due to the electrolysis process, the pH near the cathode 11 increases. Therefore, calcium compounds and the like contained in tap water tend to adhere to the cathode 11 as scale. As a result, the distance between the cathode 11 and the anode 13 in the first direction D1 may increase due to the scale. This causes a bias in the current density in the electrolysis unit 1, reducing the efficiency of ozone generation. Furthermore, if a gap occurs between the cathode 11 and the conductive film 12, or between the conductive film 12 and the anode 13, scale tends to adhere to the gap, and the electrical resistance tends to increase further in the area where the distance between the cathode 11 and the anode 13 in the first direction D1 increases. This further reduces the efficiency of ozone generation.
- the space 15 which is a flow path for tap water (i.e., an example of a liquid), penetrates the electrolytic unit 1 in the first direction D1. Therefore, as shown in FIG. 4, a part of the tap water flowing through the outer flow path 62 passes through the space 15 and flows into the main flow path 61. As a result, in the main flow path 61, the ozone and protons in the ozone water are diluted, and the bias in the ozone concentration and proton concentration of the ozone water is reduced.
- tap water i.e., an example of a liquid
- the through hole 14 and the through hole 111 of the cathode 11 are connected, so that ozone and protons are less likely to remain near the anode 13. Therefore, in the electrolytic liquid generating device 100, the decrease in the generation efficiency of ozone water can be reduced. In addition, in the electrolytic liquid generating device 100, the flow of liquid in the space 15 allows the liquid with a low pH near the anode 13 to flow near the cathode 11. Therefore, in the electrolytic liquid generating device 100, the increase in pH near the cathode 11 can be reduced, and the adhesion of scale to the cathode 11 can be reduced.
- the multiple through holes 14 are aligned along the second direction D2, which is the direction in which tap water flows through the outer flow path 62. Therefore, in the space 15, tap water can easily flow through the multiple through holes 14 without bias, so that the bias in the ozone concentration and proton concentration of the ozone water in the main flow path 61 can be further reduced. Therefore, the generation efficiency of the ozone water can be improved.
- the cross-sectional area S2 in the downstream region 622 is smaller than the cross-sectional area S1 in the upstream region 621.
- the cross-sectional areas S1 and S2 are normal to the second direction D2.
- the upstream region 621 is, for example, closer to the inlet side than the elastic body 2 in the second direction D2.
- the downstream region 622 is, for example, closer to the outlet side than the elastic body 2 in the second direction D2. That is, the cross-sectional area of the outer flow path 62 is smaller on the downstream side than on the upstream side.
- the electrolytic liquid generating device 100 of the embodiment includes an electrolytic unit 1 and a housing 3.
- the electrolytic unit 1 is arranged so that the conductive film 12 is sandwiched between the anode 13 and the cathode 11, and electrolyzes tap water.
- the electrolytic unit 1 is arranged inside the housing 3.
- the anode 13, the cathode 11, and the conductive film 12 are arranged so as to be aligned in the first direction D1, and so that the thickness direction of each is along the first direction D1.
- the first direction is the stacking direction of the conductive film 12.
- the housing 3 has an inlet through which tap water supplied to the electrolytic unit 1 flows in, and an outlet through which ozone water generated in the electrolytic unit 1 flows out.
- the electrolytic unit 1 has a space portion 15 that penetrates the electrolytic unit 1 and flows the liquid from the anode 13 side to the cathode 11 side.
- the through hole 111 of the cathode 11 included in the space 15 opens to the main flow path 61 , and at least a part of the conductive film 12 is exposed to the main flow path 61 .
- tap water passes through the space 15, so that the ozone water does not remain near the electrolysis unit 1 and the ozone is easily diffused. This makes it possible to reduce the decrease in the efficiency of ozone water generation caused by ozone water remaining near the electrolysis unit 1. In addition, since the adhesion of scale to the electrolysis unit 1 caused by ozone water remaining near the electrolysis unit 1 can be reduced, the efficiency of ozone water generation is less likely to decrease.
- an outer flow path 62 is formed, located between the inner circumferential surface of the housing 3 and the anode 13.
- the cross-sectional area S2 of the region 622 having the second direction D2 as its normal direction is smaller than the cross-sectional area S1 of the region 621 having the second direction D2 as its normal direction.
- the region 621 is closer to the inlet than the region 622, and the region 622 is closer to the outlet than the region 621.
- tap water flowing from region 621 into the outer flow path 62 is unlikely to flow into region 622, so some of the tap water flowing through the outer flow path 62 is likely to pass through space 15 and flow into the main flow path 61. This makes it easier for water to flow near the electrolysis unit 1.
- the proportion of tap water that passes through the outer flow path 62 unreacted can be reduced, so the ozone concentration of the ozone water generated by the electrolytic liquid generating device 100 can be improved.
- the cathode 11 has a through hole 111 that penetrates the cathode 11 in the first direction D1.
- the conductive film 12 has a slit 123 that penetrates the conductive film 12 in the first direction D1.
- the width d3 of the through hole 111 of the cathode 11 is larger than the width d1 of the anode 13.
- the width d2 of the slit 123 of the conductive film 12 is larger than the width d1 of the anode 13.
- the space 15 includes a position where the through hole 111 of the cathode 11 and the slit 123 of the conductive film 12 overlap in the first direction D1.
- the space portion 15 in a plan view from the first direction D1, includes a through hole 14 at a position where the through hole 111 of the cathode 11 overlaps with the slit 123 of the conductive film 12, but does not overlap with the anode 13.
- the through hole 111 of the cathode 11 communicates with the through hole 14 in the space portion 15, so that the ozone and protons generated in the electrolysis portion 1 are easily diluted with tap water. This can increase the efficiency of generating ozone water.
- the width d3 of the through hole 111 of the cathode 11 is larger than the width d2 of the slit 123 of the conductive film 12. This makes it easier for the through hole 14 to be formed in the electrolytic section 1, and makes it easier for a flow of water to pass through the space 15 and penetrate the electrolytic section 1. Therefore, the efficiency of generating ozone water can be improved.
- the conductive film 12 is comb-shaped.
- the conductive film 12 is not limited to this shape as long as it has a plurality of slits 123 in a direction intersecting the first direction D1 and the second direction D2 and forms a space 15 in the electrolysis unit 1.
- the shape of the through hole 111 of the cathode 11 is not limited to a V-shape and may be another shape.
- the liquid is tap water and the electrolytic liquid is ozone water, but as long as the liquid can be electrolytically treated to generate the electrolytic liquid, the combination of the liquid and the electrolytic liquid may be any combination of two liquids.
- the electrolytic liquid generating device (100) includes an electrolytic unit (1) and a housing (3).
- the electrolytic unit (1) is arranged such that a conductive film (12) is sandwiched between a first electrode (13) and a second electrode (11), and electrolytically processes a liquid.
- the electrolytic unit (1) is arranged inside the housing (3).
- the first electrode (13) and the second electrode (11) and the conductive film (12) are arranged to be aligned in a first direction (D1).
- the first direction (D1) is the stacking direction of the conductive film (12).
- the housing (3) has an inlet through which the liquid supplied to the electrolytic unit (1) flows in, and an outlet through which the electrolytic liquid generated in the electrolytic unit (1) flows out.
- the electrolysis unit (1) has a space (15) that penetrates the electrolysis unit (1) and allows liquid to flow from the first electrode (13) side to the second electrode (11) side.
- the space (15) opens into the flow paths (61, 62), and at least a part of the conductive film (12) is exposed to the flow path (61).
- the liquid passes through the space (15), so the electrolytic liquid is less likely to remain near the electrolytic section (1). Therefore, it is possible to reduce the decrease in the efficiency of generating the electrolytic liquid caused by the electrolytic liquid remaining near the electrolytic section (1).
- the electrolytic liquid generating device (100) includes an electrolytic unit (1) and a housing (3).
- the electrolytic unit (1) is arranged such that a conductive film (12) is sandwiched between a first electrode (13) and a second electrode (11), and electrolytically processes a liquid.
- the electrolytic unit (1) is arranged inside the housing (3).
- the first electrode (13) and the second electrode (11) and the conductive film (12) are arranged to be aligned in a first direction (D1).
- the first direction (D1) is the stacking direction of the conductive film (12).
- the housing (3) has an inlet through which the liquid supplied to the electrolytic unit (1) flows in, and an outlet through which the electrolytic liquid generated in the electrolytic unit (1) flows out.
- Flow paths (61, 62) for the liquid and the electrolytic liquid are formed between the inner peripheral surface of the housing (3) and the electrolytic unit (1).
- the flow paths (61, 62) include an outer flow path (62) located between the inner circumferential surface of the housing (3) and the first electrode (13).
- the cross-sectional area (S2) on the outlet side is smaller than the cross-sectional area (S1) on the inlet side.
- the second direction (D2) is the direction in which the liquid flows through the flow paths (61, 62).
- the cross-sectional areas (S1, S2) are normal to the second direction (D2).
- the electrolytic liquid generating device (100) makes it difficult for the electrolytic liquid to remain near the electrolytic section (1).
- the liquid does not easily flow from the inlet side to the outlet side of the outer flow path (62)
- a portion of the liquid flowing through the outer flow path (62) is likely to flow into the flow path (61). This reduces the decrease in the efficiency of electrolytic liquid generation caused by the electrolytic liquid remaining near the electrolytic section (1).
- the proportion of liquid passing through the outer flow path (62) without being electrolyzed can be reduced, the concentration of the electrolytic product in the electrolytic liquid generated by the electrolytic liquid generating device (100) can be improved.
- the flow paths (61, 62) include an outer flow path (62) located between the inner circumferential surface of the housing (3) and the first electrode (13).
- the cross-sectional area (S2) on the outlet side is smaller than the cross-sectional area (S1) on the inlet side.
- the second direction (D2) is the direction in which the liquid flows through the flow paths (61, 62).
- the cross-sectional areas (S1, S2) are normal to the second direction (D2).
- the electrolytic liquid generating device (100) since the liquid does not easily flow from the inlet side to the outlet side of the outer flow path (62), a portion of the liquid flowing through the outer flow path (62) passes through the space portion (15) and easily flows into the flow path (61). Therefore, the liquid is more likely to flow near the electrolysis portion (1).
- the proportion of the liquid passing through the outer flow path (62) without being electrolyzed can be reduced, the concentration of the electrolytic product in the electrolytic liquid generated by the electrolytic liquid generating device (100) can be improved.
- the second electrode (11) has a through hole (111) penetrating the second electrode (11) in the first direction (D1).
- the conductive film (12) has a penetrating portion (123) penetrating the conductive film (12) in the first direction (D1).
- the width (d3) of the through hole (111) of the second electrode (11) is greater than the width (d1) of the first electrode (13).
- the third direction (D3) intersects with the first direction (D1) and the flow path (61, 62) in the direction in which the liquid flows.
- the width (d2) of the penetrating portion (123) of the conductive film (12) is greater than the width (d1) of the first electrode (13).
- the space (15) includes a position where the through hole (111) of the second electrode (11) and the through portion (123) of the conductive film (12) overlap in the first direction (D1).
- the through hole (111) of the second electrode (11) overlaps with the through portion (123) of the conductive film (12) and a space portion (15) is formed at a position where the first electrode (13) does not overlap.
- the through hole (111) of the second electrode (11) and the space portion (15) are connected, so that a flow of liquid is easily generated near the electrolytic portion (1). Therefore, the efficiency of generating the electrolytic liquid can be increased.
- the width (d3) of the through hole (111) of the second electrode (11) in the third direction (D3) is greater than the width (d2) of the through portion (123) of the conductive film (12).
- the electrolytic liquid generating device (100) is likely to produce a space (15) in the electrolytic section (1), which makes it easier for liquid to flow near the electrolytic section (1). This can therefore increase the efficiency of generating the electrolytic liquid.
- Electrolytic liquid generating device 1 Electrolysis section 11 Cathode 111 Through hole 12 Conductive film 121 Main piece 122 Projection piece 123 Slit 13 Anode 14 Through hole 15 Space section 2 Elastic body 3 Housing 31 Case 311 Case body 3111 Storage section 312 Connection section 313 Connection section 32 Cover 41 Electrode pin 44 Power supply body 45 Nut 46 Spring washer 47 Washer 5 O-ring 61 Main flow path (flow path) 62 Outer flow path (flow path) 621 Region 622 Region D1 First direction D2 Second direction D3 Third direction S1 Cross-sectional area S2 Cross-sectional area d1 Width of first electrode d2 Width of through-portion of conductive film d3 Width of through-hole
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Abstract
Description
(1)概要
まず、実施形態に係る電解液体生成装置100の概要について、図1~図5を参照して説明する。図1は、実施形態に係る電解液体生成装置100の分解斜視図である。図2は、実施形態に係る電解液体生成装置100の電解部1の平面図である。図3は、実施形態に係る電解液体生成装置100の第2方向D2を法線方向とする断面図である。図4は、実施形態に係る電解液体生成装置100において液体の流路を示す概略斜視図である。図5は、実施形態に係る電解液体生成装置100の第3方向D3を法線方向とする断面図である。
次に、実施形態に係る電解液体生成装置100の詳細について、図1~図5を参照して説明する。以下の説明では、後述する電解部1における陰極11、導電性膜12及び陽極13の積層方向を第1方向D1と規定し、後述するハウジング3の長手方向を第2方向D2と規定し、ハウジング3の短手方向(すなわち、幅方向)を第3方向D3と規定する。ただし、これらの方向は電解液体生成装置100の使用時の方向を限定する趣旨ではない。また、図面中の「D1」、「D2」、「D3」を示す矢印は、説明のために表記しているに過ぎず、いずれも実体を伴わない。
ハウジング3は、電解部1及び弾性体2が内部に配置されている。ハウジング3は、図1に示すように、ケース31及びカバー32を含む。
ケース31の収容部3111には、弾性体2、給電体44、陽極13、導電性膜12、及び陰極11が収納されている。より詳細には、弾性体2、給電体44、陽極13、導電性膜12、及び陰極11は、この順に、第1方向D1に沿って積層されている。
(3.1)電解部
電解部1は、陽極13と陰極11とが第1方向D1に対向している。また、導電性膜12は、陽極13と陰極11との間に挟まれている。
ハウジング3の接続部312の流入口から流入する水道水は、電解部1の第2方向D2における上流側の端部で、主流路61と外流路62に分かれる。また、電解部1の下流側では、主流路61と外流路62とを流れるオゾン水は、電解部1の第2方向D2における下流側の端部で、合流して接続部312の流出口から流出する。
実施形態の電解液体生成装置100は、電解部1と、ハウジング3と、を備える。電解部1は、陽極13及び陰極11の間に導電性膜12が挟まれるように配置されており、水道水を電解処理する。ハウジング3は、電解部1が内部に配置されている。陽極13及び陰極11と、導電性膜12とは、第1方向D1において並ぶように、かつ、各々の厚さ方向が第1方向D1に沿うように配置されている。第1方向は、導電性膜12の積層方向である。ハウジング3は、電解部1に供給される水道水が流入する流入口と、電解部1で生成されるオゾン水が流出する流出口と、を有する。ハウジング3の内周面と電解部1との間に、水道水及びオゾン水の流路61,62が形成されている。電解部1は、電解部1を貫通し、液体を陽極13側から陰極11側へと流す空間部15を有する。空間部15に含まれる陰極11の貫通孔111は主流路61に開口し、導電性膜12の少なくとも一部が主流路61に露出している。
(1)実施形態に係る電解液体生成装置100では、導電性膜12がくし型である。しかしながら、導電性膜12は、第1方向D1及び第2方向D2に交差する方向に複数のスリット123を有し、電解部1に空間部15が形成される形状であれば、これに限られない。同様に、陰極11の貫通孔111の形状もV字状に限られず、他の形状であってもよい。
第1の態様に係る電解液体生成装置(100)は、電解部(1)と、ハウジング(3)と、を備える。電解部(1)は、第1電極(13)及び第2電極(11)の間に導電性膜(12)が挟まれるように配置されており、液体を電解処理する。ハウジング(3)は、電解部(1)が内部に配置されている。第1電極(13)及び第2電極(11)と、導電性膜(12)とは、第1方向(D1)において並ぶように配置されている。第1方向(D1)は、導電性膜(12)の積層方向である。ハウジング(3)は、電解部(1)に供給される液体が流入する流入口と、電解部(1)で生成される電解液体が流出する流出口と、を有する。ハウジング(3)の内周面と電解部(1)との間に、液体及び電解液体の流路(61,62)が形成されている。電解部(1)は、電解部(1)を貫通し、液体を第1電極(13)側から第2電極(11)側へと流す空間部(15)を有する。空間部(15)は流路(61,62)に開口し、導電性膜(12)の少なくとも一部が流路(61)に露出している。
1 電解部
11 陰極
111 貫通孔
12 導電性膜
121 主片
122 突片
123 スリット
13 陽極
14 貫通孔
15 空間部
2 弾性体
3 ハウジング
31 ケース
311 ケース本体
3111 収容部
312 接続部
313 接続部
32 カバー
41 電極ピン
44 給電体
45 ナット
46 ばね座金
47 ワッシャ
5 Oリング
61 主流路(流路)
62 外流路(流路)
621 領域
622 領域
D1 第1方向
D2 第2方向
D3 第3方向
S1 断面積
S2 断面積
d1 第1電極の幅
d2 導電性膜の貫通部の幅
d3 貫通孔の幅
Claims (5)
- 第1電極及び第2電極の間に導電性膜が挟まれるように配置されており、液体を電解処理する電解部と、
前記電解部が内部に配置されているハウジングと、を備え、
前記第1電極及び前記第2電極と、前記導電性膜とは、前記導電性膜の積層方向である第1方向において並ぶように配置されており、
前記ハウジングは、
前記電解部に供給される液体が流入する流入口と、
前記電解部で生成される電解液体が流出する流出口と、を有し、
前記ハウジングの内周面と前記電解部との間に、前記液体及び前記電解液体の流路が形成されており、
前記電解部は前記電解部を貫通し、前記液体を前記第1電極側から前記第2電極側へと流す空間部を有し、
前記空間部は前記流路に開口し、前記導電性膜の少なくとも一部が前記流路に露出している、
電解液体生成装置。 - 第1電極及び第2電極の間に導電性膜が挟まれるように配置されており、液体を電解処理する電解部と、
前記電解部が内部に配置されているハウジングと、を備え、
前記第1電極及び前記第2電極と、前記導電性膜とは、前記導電性膜の積層方向である第1方向において並ぶように配置されており、
前記ハウジングは、
前記電解部に供給される液体が流入する流入口と、
前記電解部で生成される電解液体が流出する流出口と、を有し、
前記ハウジングの内周面と前記電解部との間に、前記液体及び前記電解液体の流路が形成されており、
前記流路は、前記ハウジングの内周面と前記第1電極との間に位置する外流路を含み、
前記外流路において、前記液体の流路方向である第2方向を法線方向とする前記流出口側の断面積は、前記第2方向を法線とする前記流入口側の断面積よりも小さい、
電解液体生成装置。 - 前記流路は、前記ハウジングの内周面と前記第1電極との間に位置する外流路を含み、前記外流路において、前記液体の流路方向である第2方向を法線方向とする前記流出口側の断面積は、前記第2方向を法線とする前記流入口側の断面積よりも小さい、
請求項1に記載の電解液体生成装置。 - 前記第2電極は、前記第1方向に前記第2電極を貫通する貫通孔を有し、
前記導電性膜は、前記第1方向に前記導電性膜を貫通する貫通部を有し、
前記第1方向及び前記流路を前記液体が流れる方向に交差する第3方向において、
前記第2電極の前記貫通孔の幅は、前記第1電極の幅よりも大きく、
前記導電性膜の前記貫通部の幅は、前記第1電極の幅よりも大きく、
前記空間部は、前記第2電極の前記貫通孔と、前記導電性膜の前記貫通部とが前記第1方向に重なる位置を含む、
請求項1又は3に記載の電解液体生成装置。 - 前記第3方向において、前記第2電極の前記貫通孔の幅は、前記導電性膜の前記貫通部の幅よりも大きい、
請求項4に記載の電解液体生成装置。
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| WO2014141587A1 (ja) * | 2013-03-13 | 2014-09-18 | パナソニック株式会社 | 電解水生成装置 |
| WO2021161598A1 (ja) * | 2020-02-14 | 2021-08-19 | パナソニックIpマネジメント株式会社 | 電解液体生成装置 |
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