Electrolytic liquid generating apparatus

Abstract

To provide an electrolytic liquid generating apparatus capable of improving generation efficiency of an electrolytic liquid at an electrolytic part.SOLUTION: An electrolytic liquid generating apparatus 100 includes an electrolytic part 1 and a housing 3. The electrolytic part 1 includes a conductive film 12 arranged interposing between a first electrode 13 and a second electrode 11 and is configured to apply an electrolytic treatment to a liquid. The housing 3 includes the electrolytic part 1 arranged inside. The housing 3 includes an inflow port into which a liquid to be supplied to the electrolytic part 1 flows and an outflow port from which an electrolytic liquid generated at the electrolytic part 1 flows out. Flow channels 61, 62 for the liquid and the electrolytic liquid are formed between an inner peripheral face of the housing 3 and the electrolytic part 1. The electrolytic part 1 includes a space part. In a groove part, the space part penetrates the electrolytic part 1, and flows the liquid from a side of the first electrode 13 to a side of the second electrode 11. The space part opens in the flow channel 61, and at least part of the conductive film 12 is exposed to the flow channel 61.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to an electrolytic liquid generating device. [Background technology]

[0002] Conventionally, as an electrolytic liquid generating device, an ozone water generating device that generates ozone water (electrolytic liquid) in which ozone (electrolysis product) is dissolved in water is known. 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 in which an electrochemical reaction occurs in the water, and ozone water is generated (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-176993 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the electrolytic liquid generating device of Patent Document 1, since there is a liquid flow path between the inner circumferential surface of the housing and the cathode, scale may accumulate on the cathode, which may cause unevenness in the spatial density of ozone, reducing the efficiency of dissolving ozone and reducing the efficiency of generating the electrolytic liquid.

[0005] An object of the present disclosure is to provide an electrolytic liquid generation device capable of improving the efficiency of generating electrolytic liquid in an electrolysis section. [Means for solving the problem]

[0006] An electrolytic liquid generating device according to one aspect of the present disclosure 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 therein. 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 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 part of the conductive film is exposed to the flow path.

[0007] An electrolytic liquid generating device according to another aspect of the present disclosure 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 therein. 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 an 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. In the outer flow path, the cross-sectional area of ​​the outlet side normal to a 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. Effect of the Invention

[0008] According to an electrolytic liquid production device according to one aspect of the present disclosure, it is possible to improve the efficiency of production of the electrolytic liquid in the electrolysis section. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is an exploded perspective view of an electrolytic liquid generating device according to an embodiment. [Diagram 2] FIG. 2 is a plan view of the electrolysis unit of the electrolytic liquid generating device. [Diagram 3] FIG. 3 is a cross-sectional view of the electrolytic liquid production device taken along a third direction. [Figure 4] FIG. 4 is a schematic perspective view showing a liquid flow path in the electrolytic liquid generating device. [Diagram 5] FIG. 5 is a cross-sectional view of the electrolytic liquid production device taken along the second direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the electrolytic liquid generating device according to the embodiment will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic diagram, and the size and thickness ratio of each component do not necessarily reflect the actual dimensional ratio. In addition, the embodiment implemented below is merely one example of the embodiment of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effect of the present disclosure can be achieved.

[0011] (Embodiment) (1) Overview First, an overview of an electrolytic liquid generating apparatus 100 according to an embodiment will be described with reference to FIGS. 1 to 5. FIG.

[0012] The electrolytic liquid generating device 100 according to the embodiment generates an electrolytic liquid by subjecting a liquid to electrolytic processing. In the present embodiment, as an example, 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 (electrolysis product) by electrolytic processing that electrolyzes tap water, and generates ozone water by dissolving the ozone in the tap 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.

[0013] As shown in Figs. 1 and 2, the electrolytic liquid generating device 100 according to the embodiment includes an electrolytic unit 1, an elastic body 2, a housing 3, and a power supply body 44. The electrolytic unit 1 includes a pair of electrodes, a first electrode and a second electrode, and a conductive film 12 arranged so as to be sandwiched between the pair of electrodes. The first electrode, the conductive film 12, and the second electrode are laminated in the thickness direction of each. In the embodiment, the first electrode is an anode 13, and the second electrode is a cathode 11. The electrolytic unit 1 electrolyzes the liquid. The housing 3 has the electrolytic unit 1 disposed therein. In the electrolytic liquid generating device 100 according to the embodiment, the electrolytic unit 1 includes a space portion 15 penetrating the electrolytic unit 1, as shown in Figs. 2 and 4. Here, hatching showing a cross section is omitted in Fig. 4. Also, in Fig. 4, the arrows indicate the flow of tap water (liquid). In the electrolytic liquid generating device 100, as shown in Fig. 5, tap water flows from the outer flow path 62 through the space portion 15 and into the through hole 111 of the cathode 11. Therefore, the electrolytic product does not remain in the vicinity of the electrolysis portion 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 generating ozone water.

[0014] (2) Details Next, the details of the electrolytic liquid generating device 100 according to the embodiment will be described with reference to Figs. 1 to 5. In the following description, 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, and the short side direction (width direction) of the housing 3 is defined as a third direction D3. However, these directions are not intended to limit the directions in which the electrolytic liquid generating device 100 is used. Also, 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.

[0015] 1, the electrolytic liquid generation device 100 according to the embodiment includes an electrolysis unit 1, an elastic body 2, a housing 3, a power supply body 44, and a plurality (two in the illustrated example) of O-rings 5. Moreover, the electrolytic liquid generation device 100 according to the embodiment further includes a plurality (two in the illustrated example) of nuts 45, a plurality (two in the illustrated example) of spring washers 46, and a plurality (two in the illustrated example) of washers 47, as shown in FIG.

[0016] (2.1) Housing 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.

[0017] The case 31 includes a case body 311. The case body 311 is formed in a hollow rectangular parallelepiped shape with one end (upper surface in FIG. 1) in the first direction D1 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. Furthermore, 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.

[0018] The cover 32 is a rectangular plate. The cover 32 is in contact with the case body 311 along the first direction D1, and covers the opening of the storage section 3111 of the case body 311. In addition, a plurality of rows of protrusions are formed on the inner surface of the cover that faces the opening of the storage section 3111 of the case body 311.

[0019] Furthermore, the case body 311 has through holes (electrode pin holes) for allowing the electrode pins 41 to pass therethrough.

[0020] The case 31 and the cover 32 are made of a non-conductive resin such as acrylic.

[0021] (2.2) Elastic body and electrolytic part The housing portion 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 layered in this order along the first direction D1.

[0022] 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 an end in the second direction D2 and an end in the third direction D3. The multiple protrusions are positioning protrusions that position the power supply body 44 and the anode 13. The elastic body 2 presses the power supply body 44 and the anode 13 in the first direction D1.

[0023] 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 (first surface) of the power supply body 44 contacts the elastic body 2, and at least a portion of the other surface (second surface) contacts the anode 13. The power supply body 44 is formed of, for example, a titanium alloy.

[0024] 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 long in the second direction D2. One surface (first surface) of the anode 13 contacts the power supply body 44, and at least a portion of the other surface (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.

[0025] 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 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 having a longitudinal shape in the third direction D3 and a plurality of protruding pieces 122 having the third direction D3 as a longitudinal direction. Each of the plurality of slits 123 is sandwiched in the second direction D2 between two protruding pieces 122 adjacent to each other in the second direction D2. The plurality of protruding pieces 122 are arranged at equal intervals along the second direction D2. The extension direction of each of the plurality of protruding pieces 122 may be any direction intersecting with the second direction D2, and does not necessarily have to be the third direction D3. Furthermore, the width of the through hole between two adjacent protruding pieces 122 of the conductive film 12 in the third direction D3 is larger than the width of the anode 13 in the third direction D3.

[0026] The cathode 11 is a second electrode for electrolyzing tap water, which is a liquid. 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.

[0027] The cathode 11 has a plurality of through holes 111 arranged at equal intervals along the second direction D2. Each of the plurality of 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 the liquid (tap water). Therefore, ozone generated on the surface of the anode 13 is easily dissolved in the liquid (tap water) in the space between the cathode 11 and the cover 32 (hereinafter referred to as the "main flow path"). In addition, it is possible to reduce a decrease in the efficiency of ozone generation caused by ozone gas remaining inside the electrolysis unit.

[0028] Furthermore, the width of the multiple through holes 111 of the cathode 11 in the third direction D3 is larger 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 the liquid (tap water) can pass through the electrolysis unit 1 along the first direction D1, the ozone concentration in the ozone water in the storage unit 3111 of the case 31 is made uniform, and the generation efficiency of the ozone water is improved.

[0029] The cathode 11 and the power supply body 44 are each 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 (upper end in FIG. 1) of each electrode pin 41 in the first direction D1 is welded to the power supply body 44 or the cathode 11. Also, a screw thread is provided in a predetermined range of each electrode pin 41 including a second end (lower end in FIG. 1) in the first direction D1.

[0030] 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.

[0031] (3) Detailed configuration (3.1) Electrolytic section In the electrolysis unit 1, the anode 13 and the cathode 11 face each other in a first direction D1. The conductive film 12 is sandwiched between the anode 13 and the cathode 11.

[0032] In the third direction D3, the width d2 of the slit 123 between the two adjacent protrusions 122 of the conductive film 12 is larger than the width d1 of the anode 13. Here, the width d2 of the slit 123 coincides with 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.

[0033] Moreover, in the third direction D3, the width d3 of each of the multiple through holes 111 of the cathode 11 is larger 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 larger than the width d1 of the anode 13. 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 and the anode 13 (hereinafter referred to as a through hole 14). The electrolysis unit 1 has multiple through holes 14 arranged at intervals in the second direction.

[0034] The space 15 is a flow path for tap water (liquid) penetrating the electrolysis unit 1 in the first direction D1. As shown in Fig. 2, the space 15 includes a through hole 111 of the cathode 11 and a slit 123 of the conductive film 12. Here, the through hole 14 communicates with the through hole 111 of the cathode 11 and the slit 123 of the conductive film 12 at least in the third direction D3. In addition, the slit 123 or the through hole 111 that does not directly communicate with the through hole 14 also indirectly communicates with the through hole 111 via the slit 123 or the through hole 111 that communicates with the through hole 14.

[0035] Therefore, tap water (liquid) flowing into the through hole 14 of the space portion 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. The tap water (liquid) flowing into the slit 123 of the conductive film 12 also passes through the space portion 15 and flows out from the through hole 111 of the cathode 11. In other words, the tap water (liquid) flowing into the space portion 15 along the first direction D1 also flows on the cover 32 side from the anode 13 in the second direction D2 and the third direction D3.

[0036] 3 and 4, a main flow path 61, in which tap water (liquid) mainly flows in the second direction D2, is formed between the electrolysis unit 1 and the cover 32. In addition, an outer flow path 62, in which tap water (liquid) mainly flows in the second direction D2, is formed between the electrolysis unit 1 and the inner circumferential surface of the case body 311.

[0037] 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 in the main flow path 61 through the through-hole 111 of the cathode 11, and ozone water (electrolytic liquid) is generated in the main flow path 61.

[0038] On the other hand, the proton concentration increases near the anode 13 because hydroxide ions in the tap water are consumed by electrolysis, which may decrease the hydroxide ion concentration near the anode 13 and reduce the efficiency of ozone generation.

[0039] In addition, since the pH in the vicinity of the anode 13 is decreased by the electrolysis treatment, the pH in the vicinity of the cathode 11 is increased. Therefore, calcium compounds and the like contained in tap water are likely to adhere to the cathode 11 as scale. Therefore, the distance between the cathode 11 and the anode 13 in the first direction D1 may be expanded due to the scale. Therefore, the current density is biased in the electrolysis unit 1, and the ozone generation efficiency is reduced. In addition, when a gap is generated between the cathode 11 and the conductive film 12, or between the conductive film 12 and the anode 13, the scale is likely to adhere to the gap, and the electrical resistance is likely to further increase in the portion where the distance between the cathode 11 and the anode 13 in the first direction D1 is expanded. Therefore, the ozone generation efficiency is likely to further decrease.

[0040] On the other hand, in the electrolytic liquid generating device 100 according to the embodiment, the space 15, which is a flow path for tap water (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 of the ozone concentration and the proton concentration of the ozone water is reduced. In addition, in the space 15, the through hole 14 communicates with the through hole 111 of the cathode 11, so that the 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 the ozone water can be reduced. In addition, in the electrolytic liquid generating device 100, the flow of the liquid in the space 15 can cause 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. Furthermore, in the space 15, 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 easily flows through the multiple through holes 14 without bias, which further reduces bias in the ozone concentration and proton concentration of the ozone water in the flow path 61. Therefore, the generation efficiency of the ozone water can be improved.

[0041] (3.2) Housing Tap water flowing in from the inlet of the connection part 312 of the housing 3 is separated into the main flow path 61 and the outer flow path 62 at the upstream end in the second direction D2 of the electrolysis unit 1. In addition, on the downstream side of the electrolysis unit 1, the ozone water flowing in the main flow path 61 and the outer flow path 62 join together at the downstream end in the second direction D2 of the electrolysis unit 1 and flows out from the outlet of the connection part 312.

[0042] Here, as shown in FIG. 5, in the outer flow passage 62, the cross-sectional area S2 in the downstream region 622 is smaller than the cross-sectional area S1 in the upstream region 621. Here, 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. Also, the downstream region 622 is, for example, closer to the outlet side than the elastic body 2 in the second direction D2. That is, in the outer flow passage 62, the cross-sectional area on the downstream side is smaller than the cross-sectional area on the upstream side. With this configuration, tap water that has flowed into the region 621 of the outer flow passage 62 is more likely to flow into the main flow passage 61 via the space portion 15. Therefore, the flow of water near the through hole 111 of the cathode 11 in the electrolysis unit 1 is promoted, and ozone and protons are less likely to remain near the anode 13. For this reason, it is possible to reduce the decrease in the efficiency of ozone generation. Also, it is possible to reduce the adhesion of scale to the cathode 11.

[0043] (4) Effects The electrolytic liquid generating device 100 of the embodiment includes an electrolytic unit 1 and a housing 3. The electrolytic unit 1 is arranged such 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 to be aligned in a first direction D1, and the thickness direction of each is arranged 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. Between the inner circumferential surface of the housing 3 and the electrolytic unit 1, flow paths 61 and 62 for tap water and ozone water are formed. 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 flow channel 61 , and at least a part of the conductive film 12 is exposed to the flow channel 61 .

[0044] Therefore, in the electrolytic liquid generating device 100 of the embodiment, tap water passes through the space 15, so that ozone is easily diffused without ozone water remaining in the vicinity of the electrolysis unit 1. This makes it possible to reduce a decrease in the efficiency of ozone water generation caused by ozone water remaining in the vicinity of the electrolysis unit 1. In addition, since adhesion of scale to the electrolysis unit 1 caused by ozone water remaining in the vicinity of the electrolysis unit 1 can be reduced, the efficiency of ozone water generation is less likely to decrease.

[0045] In the electrolytic liquid generation device 100 of the embodiment, an outer flow path 62 is formed between the inner circumferential surface of the housing 3 and the anode 13. In the outer flow path 62, a cross-sectional area S2 of a region 622 having a normal direction in the second direction D2 is smaller than a cross-sectional area S1 of a region 621 having a normal direction in the second direction D2. 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.

[0046] Therefore, in the electrolytic liquid generation device 100 of the embodiment, tap water flowing from the region 621 into the outer flow path 62 does not easily flow into the region 622, so that part of the tap water flowing through the outer flow path 62 passes through the space 15 and easily flows into the main flow path 61. This makes it easier for water to flow near the electrolysis unit 1. In addition, the proportion of tap water that passes through the outer flow path 62 without reacting can be reduced, so the ozone concentration of the ozone water generated by the electrolytic liquid generation device 100 can be improved.

[0047] In the electrolytic liquid generating apparatus 100 of the embodiment, the cathode 11 has a through hole 111 penetrating the cathode 11 in the first direction D1. The conductive film 12 has a slit 123 penetrating the conductive film 12 in the first direction D1. In the third direction D3, the width d3 of the through hole 111 of the cathode 11 is larger than the width d1 of the anode 13. In the third direction D3, 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.

[0048] Therefore, in the electrolytic liquid generating device 100 of the embodiment, in a plan view from the first direction D1, the space portion 15 includes the 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. As a result, 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 unit 1 are easily diluted with tap water. This can increase the efficiency of generating ozone water.

[0049] Furthermore, in the electrolytic liquid generating apparatus 100 of the embodiment, in the third direction D3, 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 electrolysis unit 1, and makes it easier for water to flow through the space 15 and penetrate the electrolysis unit 1. This therefore makes it possible to increase the efficiency of generating ozone water.

[0050] (Modification) (1) In the electrolytic solution generating apparatus 100 according to the embodiment, the conductive film 12 is comb-shaped. However, 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. Similarly, the shape of the through-hole 111 of the cathode 11 is not limited to a V-shape and may be another shape.

[0051] (2) In the electrolytic liquid generating device 100 of the embodiment, 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 a combination of any two liquids.

[0052] (Aspect) The electrolytic liquid generating device (100) according to the first embodiment 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 performs electrolytic processing of 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 a 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 circumferential surface of the housing (3) and the electrolytic unit (1). The electrolysis unit (1) has a space (15) that penetrates the electrolysis unit (1) and allows the 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 membrane (12) is exposed to the flow path (61).

[0053] According to the electrolytic liquid production device (100) of the above aspect, the electrolytic liquid is less likely to remain near the electrolytic unit (1) because the liquid passes through the space (15). Therefore, it is possible to reduce a decrease in the efficiency of production of the electrolytic liquid caused by the electrolytic liquid remaining near the electrolytic unit (1).

[0054] The electrolytic liquid generating device (100) according to the second aspect 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 performs electrolytic processing of 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 an inner circumferential surface of the housing (3) and the first electrode (13). In the outer flow path (62), a cross-sectional area (S2) on the outlet side is smaller than a cross-sectional area (S1) on the inlet side. A second direction (D2) is a direction in which liquid flows through the flow paths (61, 62). The second direction (D2) is a normal direction of the cross-sectional areas (S1, S2).

[0055] According to the electrolytic liquid generating device (100) of the above aspect, the electrolytic liquid is less likely to remain near the electrolysis unit (1). In addition, since the liquid is less likely to flow from the inlet side to the outlet side of the outer flow path (62), a part of the liquid flowing through the outer flow path (62) is more likely to flow into the flow path (61). This makes it possible to reduce a decrease in the efficiency of electrolytic liquid generation caused by the electrolytic liquid remaining near the electrolytic unit (1). In addition, it is possible to reduce the proportion of the liquid passing through the outer flow path (62) without being electrolyzed, thereby improving the concentration of the electrolytic product in the electrolytic liquid generated by the electrolytic liquid generating device (100).

[0056] In the electrolytic liquid generation device (100) according to the third aspect, in the first aspect, 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). In the outer flow path (62), a cross-sectional area (S2) on the outlet side is smaller than a 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 second direction (D2) is the normal direction of the cross-sectional areas (S1, S2).

[0057] According to the electrolytic liquid generating device (100) of the above aspect, since the liquid does not easily flow from the inlet side to the outlet side of the outer flow path (62), a part of the liquid flowing through the outer flow path (62) is likely to pass through the space portion (15) and flow into the flow path (61). Therefore, the liquid is likely to flow near the electrolysis portion (1). In addition, since the proportion of the liquid passing through the outer flow path (62) without being electrolyzed can be reduced, the concentration of the electrolysis product in the electrolytic liquid generated by the electrolytic liquid generating device (100) can be improved.

[0058] In the electrolytic liquid generating device (100) according to the fourth aspect, in either the first or third aspect, 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 through portion (123) penetrating the conductive film (12) in the first direction (D1). In the third direction (D3), the width (d3) of the through hole (111) of the second electrode (11) is larger than the width (d1) of the first electrode (13). The third direction (D3) intersects with the first direction (D1) and the direction in which the liquid flows through the flow paths (61, 62). In the third direction (D3), the width (d2) of the through portion (123) of the conductive film (12) is larger 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).

[0059] According to the electrolytic liquid generating device (100) of the above aspect, in a plan view from the first direction (D1), the through hole (111) of the second electrode (11) and the through portion (123) of the conductive film (12) overlap, and the space portion (15) is formed at a position where the first electrode (13) does not overlap. As a result, the through hole (111) of the second electrode (11) and the space portion (15) communicate with each other, so that a flow of liquid is easily generated near the electrolytic portion (1). Therefore, the efficiency of generating the electrolytic liquid can be improved.

[0060] In the electrolytic liquid generating apparatus (100) of the fifth aspect, in the fourth aspect, the width (d3) of the through hole (111) of the second electrode (11) in the third direction (D3) is larger than the width (d2) of the through portion (123) of the conductive film (12).

[0061] According to the electrolytic liquid production device (100) of the above aspect, the space (15) is easily formed in the electrolytic section (1), which facilitates the flow of liquid in the vicinity of the electrolytic section (1). This can increase the efficiency of production of the electrolytic liquid. [Explanation of symbols]

[0062] 100 Electrolyte liquid generation device 1 Electrolytic section 11 Cathode (second electrode) 111 Through hole 12 Conductive film 123 Slit (through hole) 13 Anode (first electrode) 15 Space section 61 Main channel (channel) 62 Outer flow path (flow path) 3. Housing D1 1st direction D2 2nd direction D3 Third direction S1,S2 cross-sectional area d1 Width of the first electrode d2 Width of the conductive film penetration d3 Width of through hole

Claims

1. an electrolysis unit that is disposed so that a conductive film is sandwiched between a first electrode and a second electrode and that performs an electrolytic process on a liquid; A housing in which the electrolysis unit is disposed, the first electrode, the second electrode, and the conductive film are arranged to be aligned in a first direction which is a stacking direction of the conductive film, The housing includes: an inlet through which a liquid to be supplied to the electrolysis unit flows; An outlet through which the electrolytic liquid generated in the electrolysis unit flows out, A flow path for the liquid and the electrolytic liquid is formed between an inner circumferential surface of the housing and the electrolytic unit, the electrolysis unit has a space portion penetrating the electrolysis unit and allowing the liquid to flow from the first electrode side to the second electrode side; the space is open to the flow path, and at least a portion of the conductive film is exposed to the flow path; Electrolyte liquid generation device.

2. an electrolysis unit that is disposed so that a conductive film is sandwiched between a first electrode and a second electrode and that performs an electrolytic process on a liquid; A housing in which the electrolysis unit is disposed, the first electrode, the second electrode, and the conductive film are arranged to be aligned in a first direction which is a stacking direction of the conductive film, The housing includes: an inlet through which a liquid to be supplied to the electrolysis unit flows; An outlet through which the electrolytic liquid generated in the electrolysis unit flows out, A flow path for the liquid and the electrolytic liquid is formed between an inner circumferential surface of the housing and the electrolytic unit, the flow passage includes an outer flow passage located between an inner circumferential surface of the housing and the first electrode, In the outer flow path, a cross-sectional area of ​​the outlet side normal to a second direction that is a flow path direction of the liquid is smaller than a cross-sectional area of ​​the inlet side normal to the second direction. Electrolyte liquid generation device.

3. the flow path includes an outer flow path located between an inner circumferential surface of the housing and the first electrode, and in the outer flow path, a cross-sectional area of ​​the outlet side normal to a second direction that is a flow path direction of the liquid is smaller than a cross-sectional area of ​​the inlet side normal to the second direction. The electrolytic liquid generating device according to claim 1 .

4. the second electrode has a through hole penetrating the second electrode in the first direction, the conductive film has a through portion that penetrates the conductive film in the first direction, In a third direction intersecting the first direction and the direction in which the liquid flows through the flow path, The width of the through hole of the second electrode is larger than the width of the first electrode, a width of the through portion of the conductive film is greater than a width of the first electrode; the space includes a position where the through hole of the second electrode and the through portion of the conductive film overlap in the first direction.

4. The electrolytic liquid generating device according to claim 1 or 3.

5. In the third direction, a width of the through hole of the second electrode is larger than a width of the through portion of the conductive film.

5. The electrolytic liquid generating device according to claim 4.

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