JP2008161795A - Ozone water generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ozone water generator which generates ozone by electrolysis of raw material water to generate ozone water, is a low cost, facilitates maintenance, and can stably generate the ozone water. <P>SOLUTION: The ozone water generator 1 comprises an electrolytic cell 10 in which a passage of the raw material water W2 in contact with an anode electrode 15 and a passage of washing water W1 in contact with a cathode electrode 16 are formed, and electrolyzes the raw material water W2 by applying a direct-current voltage between the electrodes to generate the ozone water. The ozone water generator 1 is equipped with a washing water tank 3 storing the washing water W1, forming the outflow port 3a and inflow port 3b of the washing water W1 at the bottom, and communicating with the passage of the washing water W1 in the electrolytic cell 10 via the outflow port 3a and inflow port 3b. The passage of the washing water W1 in the electrolytic cell 10 is installed so that its downstream side is higher than its upstream side and that it is positioned lower than the inflow port 3b of the washing water W1 bored in the washing water tank 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an ozone water generator that electrolyzes raw water and generates ozone on the anode side to generate ozone water.

  2. Description of the Related Art Conventionally, as a method for generating ozone water, an electrolysis method (electrolysis method) that generates ozone water by electrolyzing raw water such as tap water has attracted attention. In this method, an anode electrode made of a catalytic metal is formed on one surface side of an ion exchange membrane, a cathode electrode made of a metal is formed on the other surface side, and raw water is made to flow along one surface side of the anode side. A DC voltage is applied between the electrodes to generate ozone on the anode side.

However, in the electrolysis method, when used for a long time, inorganic substances such as calcium ions and magnesium ions contained in water precipitate and deposit between the electrode and the ion exchange membrane, resulting in a high electrical resistance value. As a result, there was a problem that electrolysis did not occur.
For such a problem, Patent Document 1 discloses an ozone water generator (ozonizer) that prevents the deposition of calcium ions, magnesium ions, and the like in the vicinity of an electrode and solves the above problems.

  As shown in FIG. 12, the ozone water generator disclosed in Patent Document 1 has an ion exchange membrane 51 attached so as to partition the container 50 in two in the container 50. Further, an electrode 52 made of a catalytic metal is brought into contact with one side of the ion exchange membrane 51 to be an anode side, and an electrode 53 made of metal is brought into contact with the other side to be a cathode side. Thus, an anode chamber 50a and a cathode chamber 50b are formed in the container 50.

Further, the anode chamber 50a is provided with an inflow port 55a and an outflow port 56a, and raw water such as tap water is introduced from the inflow port 55a, flows along the surface of the electrode 52, and then led out from the outflow port 56a. It is configured as follows.
On the other hand, the cathode chamber 50b is provided with an inlet 55b and an outlet 56b. After the cleaning water 62 accommodated in the cleaning water tank 63 is introduced from the inlet 55b by the pump 64 and flows along the surface of the electrode 53, , It is configured to be led out from the outflow port 56b.

Here, a direct current voltage is applied from the direct current power source 65 to the electrode 52 (anode electrode) and the electrode 53 (cathode electrode), so that the raw water is electrolyzed and ozone (O ₃ ) is generated on the anode side. Has been made. Then, inorganic substances such as calcium ions and magnesium ions generated during the electrolysis move from the anode side to the cathode side through the ion exchange membrane 51, and move from the electrode 53 by the washing water 62 circulating in the cathode chamber 50b. Has been made.
JP 2002-69679 A

According to the ozone water generator disclosed in Patent Document 1, inorganic substances such as calcium ions and magnesium ions are not deposited in the vicinity of the electrode, that is, the electric resistance value is not increased, and electrolysis is performed even for a long time. Ozone can be generated stably.
However, in the ozone water generator disclosed in Patent Document 1, since the cleaning water 62 circulating on the cathode side exhibits strong acidity, it is necessary to use a corrosion-resistant pump 64, which increases costs. There was a problem that maintenance work of the movable part was complicated.

  The present invention has been made under the circumstances as described above, and in an ozone water generator that generates ozone water by electrolyzing raw water to generate ozone water, maintenance is easy at low cost. An object of the present invention is to provide an ozone water generator that can stably generate ozone water.

  In order to solve the above-described problems, an ozone water generator according to the present invention includes an ion exchange membrane disposed between an anode electrode and a cathode electrode, and a flow path of raw water in contact with the anode electrode and the cathode electrode. An ozone water generator that has an electrolytic cell formed with a flow path for a cleaning solution in contact therewith and electrolyzes raw water in contact with the anode electrode by applying a DC voltage between the electrodes to generate ozone water. A cleaning water tank that contains the cleaning liquid and has an outlet and an inlet for the cleaning liquid formed at the bottom, and communicates with a flow path for the cleaning liquid in the electrolytic tank through the outlet and the inlet. The flow path of the cleaning liquid is characterized in that the downstream side is provided above the upstream side and is provided below the cleaning liquid inflow port formed in the cleaning water tank.

By comprising in this way, the hydrogen gas generated at the time of electrolysis of raw material water on the cathode side can be moved to the downstream side by buoyancy and discharged out of the tank. As a result, the hydrogen gas discharged from the electrolytic cell continuously floats in the cleaning liquid tank, so that the action of pressure balance works and the catholyte can be circulated between the tank and the electrolytic cell.
Therefore, with the above-described configuration, it is not necessary to use a circulating drive source such as a pump that has been conventionally used, maintenance is easy with a simple configuration, and low manufacturing costs and maintenance costs can be realized.

The cathode electrode is preferably provided on the upper side of the anode electrode.
Since the cathode electrode and the anode electrode are formed with a plurality of through holes for bringing the cleaning liquid and the raw material water into contact with the ion exchange membrane, respectively, by configuring as described above, at the time of electrolysis of the raw water The hydrogen gas generated on the cathode electrode side can be levitated upward without being retained in the through hole formed in the cathode electrode, and discharged out of the tank.

Moreover, in the flow path of the cleaning liquid in the electrolytic cell, it is preferable that the diameter of the pipe through which the cleaning liquid flows is formed larger on the downstream side than on the upstream side.
By comprising in this way, the backflow of a washing | cleaning liquid can be prevented and the flow of the washing | cleaning liquid stabilized in one direction can be formed.

Moreover, in the flow path of the cleaning liquid in the electrolytic cell, it is preferable that a plurality of linear grooves are formed in the flow path in contact with the cathode electrode from the upstream side to the downstream side.
With this configuration, the flow of the cleaning liquid can be rectified in the flow path where the cleaning liquid is in contact with the cathode electrode, and inorganic substances such as calcium ions and magnesium ions released to the cathode side during the electrolysis of the raw material water are electroded. It can be moved effectively from the vicinity and discharged out of the tank.

Moreover, in the flow path of the raw material water in the electrolytic cell, it is desirable that a zigzag groove is formed along the flow path in contact with the anode electrode from the upstream side to the downstream side.
By comprising in this way, the raw material water supplied to the electrolytic cell has a reduced flow velocity in the anode electrode plate, and the electrolysis reaction can be performed efficiently.

  According to the present invention, ozone is generated by electrolyzing raw water to generate ozone water, and the ozone water generator that generates ozone water is easy to maintain at low cost and can stably generate ozone water. An ozone water generator can be obtained.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an ozone water generator of the present invention. The ozone water generator 1 is an apparatus for generating ozone water by electrolyzing raw water such as tap water to generate ozone (O ₃ ).

As shown in FIG. 1, the ozone water generator 1 has a cylindrical catholyte tank 3 (cleaning liquid tank) installed on the upper surface of a rectangular parallelepiped support base 2, and the support base 2 is located on the side of the support base 2. The side part of the smaller rectangular parallelepiped electrolytic cell 10 is in surface contact and attached.
The catholyte tank 3 is a substantially sealed tank that contains catholyte W1 (cleaning liquid) in which sodium chloride is dissolved in pure water or tap water to improve conductivity, and citric acid is dissolved to lower the pH value. It is. An outflow port 3a and an inflow port 3b are formed at the bottom of the tank 3, and the catholyte inflow port 10a and the catholyte outflow port 10b are formed on the sides of the electrolytic cell 10 via pipes 4 and 5, respectively. It is connected to the. That is, the catholyte W1 in the tank 3 is circulated through the electrolytic cell 10 so that inorganic substances such as magnesium ions and calcium ions generated by electrolysis of the raw material water in the electrolytic cell 10 are discharged from the electrolytic cell 10. Yes.

Further, during the electrolytic treatment, hydrogen (H ₂ ) is generated according to the chemical formula (1) on the cathode side in the electrolytic cell 10.
[Chemical 1]
2H ⁺ + 2e → H ₂ ↑ (1)
The hydrogen gas generated on the cathode side of the electrolytic cell 10 is continuously discharged from the electrolytic cell 10 by its own buoyancy as described later, and floats in the catholyte tank 3 through the pipe 5. Further, since the water pressure of the catholyte W1 in the tank 3 and the catholyte W1 in the electrolytic cell 10 acts to maintain a balance, when the hydrogen gas discharged from the electrolytic cell 10 floats in the tank 3, the electrolytic cell 10, the catholyte W1 flows from the catholyte inlet 10a. Accordingly, when hydrogen gas is continuously discharged from the electrolytic cell 10 into the tank 3, the catholyte W <b> 1 is configured to circulate between the electrolytic cell 10 and the tank 3.
The hydrogen gas floating in the tank 3 is exhausted from an exhaust pipe 8 provided on the tank top plate.

In addition, a raw water inlet 10c to which a pipe 6 for supplying raw water W2 is connected to the electrolytic cell 10 and an ozone water flow for sending out ozone water containing ozone generated by electrolysis of the raw water from the pipe 7 An outlet 10d is formed. In the electrolytic cell 10, an anode electrode in contact with the raw material water W2 and a cathode electrode in contact with the catholyte W1 are provided as will be described later. By applying a DC voltage between both electrodes, the electric power of the raw material water W2 is provided. Disassembly is performed. The voltage is applied to both electrodes by applying a DC voltage from the DC power source 30 via the cathode electrode bar 13 protruding from the upper surface of the electrolytic cell 10 and the anode electrode bar (not shown in FIG. 1) protruding from the lower surface. Is done.
The electrolysis of the raw water W2 in the electrolytic cell 10 is performed according to the chemical formula (2), and ozone (O ₃ ) is generated in the raw water W2.
[Chemical 2]
3H ₂ O → O ₃ ↑ + 6H ⁺ + 6e (2)

Next, the structure of the electrolytic cell 10 that generates ozone water will be described in detail. 2 is a perspective view of the electrolytic cell 10, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, FIG. 4 is a cross-sectional view taken along line BB in FIG. 2, and FIG. It is C arrow sectional drawing.
As shown in FIG. 2, the electrolytic cell 10 has a cathode cell 11 (upper side) and an anode cell 12 (lower side) stacked one above the other, and a top plate 21 for fixing both cells to the upper and lower surfaces with bolts or the like. A bottom plate 22 is provided.

As shown in the cross-sectional views of FIGS. 3 and 4, an ion exchange membrane 17 is provided between the cathode cell 11 and the anode cell 12, and the cathode electrode is disposed on the cathode cell 11 side so as to sandwich the ion exchange membrane 17. A plate 15 (cathode electrode) is provided, and an anode electrode plate 16 (anode electrode) is provided on the anode cell 12 side.
As shown in the perspective view of the cathode electrode plate 15 in FIG. 6 and the perspective view of the anode electrode plate 16 in FIG. 7, a plurality of through-holes 15a and 16a (for example, 3 mm in diameter) are formed in both electrode plates 15 and 16, respectively. It is formed in a child shape, and is configured such that the catholyte W1 and the raw water W2 are in contact with the ion exchange membrane 17. The cathode electrode plate 15 and the anode electrode plate 16 are made of, for example, titanium (Ti).

Here, the structure of the cathode cell 11 will be described. 8A is a plan view of the electrode plate installation surface of the cathode cell 11, FIG. 8B is a cross-sectional view taken along line KK in FIG. 8A, and FIG. 8C is FIG. It is the II sectional view taken on the line of a).
As shown in FIG. 8, on the electrode plate installation surface of the cathode cell 11, a plurality of groove portions 11a having a predetermined depth are formed in parallel with the cell longitudinal direction (the flow direction of the catholyte W1) at predetermined intervals. Thereby, a plurality of ribs 11b are formed. The tips of the plurality of ribs 11b are in contact with the cathode electrode plate 15 to fix the electrode plate 15 as shown in FIG.

In addition, spaces 11d and 11e having a predetermined volume are formed on both ends in the longitudinal direction of the rib 11b. After the catholyte W1 supplied from the inlet 10a flows into the space 11d, the spaces pass through all the grooves 11a. 11e, and then flows out from the outlet 10b. Here, since the plurality of grooves 11a are linearly formed from the upstream side to the downstream side of the flow path of the catholyte W1, the flow of the catholyte W1 in contact with the electrode is rectified and released to the cathode electrode side. Calcium ions and magnesium ions are effectively flowed out of the tank without being deposited near the electrodes.
The diameter of the pipe provided in the flow path of the catholyte W1 from the inlet 10a to the outlet 10b is preferably larger on the downstream side than on the upstream side, thereby preventing the backflow of the catholyte W1. Thus, a stable flow of the catholyte W1 can be formed in one direction.

Further, as shown in FIG. 8, a through hole 11c is formed in the central rib 11b of the cathode cell 11, and as shown in FIG. 4, a cathode electrode rod 13 is inserted into the through hole 11c. As shown in the figure, the front end is fitted into any of a plurality of through holes 15 a formed in the cathode electrode plate 15, and the rear end protrudes from the upper surface of the electrolytic cell 10.
Further, in order to prevent leakage of the catholyte W1 transmitted through the electrode rod 13, a cylindrical recess 11f is formed outside the through hole 11c in the cathode cell 11, and sealing is performed by an O-ring 24 provided in the recess 11f. Processing has been done. The O-ring 24 is fixed by a pressing plate 25 that fits into the recess 11f.

  Further, the structure on the anode cell 12 side will be described. FIG. 9A is a plan view of the electrode plate installation surface of the anode cell 12, and FIG. 9B is a cross-sectional view taken along the line D-D in FIG. 9A. FIG. 10A is a perspective view of the anode cell block 18 installed in the anode cell 12, and FIG. 10B is a plan view of a contact surface of the anode cell block 18 with the anode electrode plate 16.

  As shown in FIG. 9, a recess 12a having a predetermined depth is formed in a substantially rectangular shape on the electrode plate mounting surface of the anode cell 12, and the anode cell block 18 is set in the recess 12a. As shown in FIG. 10, the anode cell block 18 has a plurality of protruding rods 18b each having a rhombus cross section in the longitudinal direction of the plate block 18a on one surface of the plate block 18a at a predetermined interval in a staggered pattern. Provided. As shown in FIGS. 3 and 4, the plurality of protruding rods 18 b are provided in the recess 12 a so as to contact the anode electrode plate 16.

  In addition, in a state where the anode cell block 18 is installed in the recess 12 a of the anode cell 12, spaces 12 c and 12 d having a predetermined volume are formed on both ends in the longitudinal direction of the anode cell block 18. For this reason, the raw material water W2 supplied from the inflow port 10c flows into the space 12c and then flows through the groove 18d of the anode cell block 18. The raw material water W2 is electrolyzed while passing through the groove 18d, and then flows into the space 12d and is sent out as ozone water from the outlet 10d. Here, since the flow path formed by the grooves 18d is zigzag by the plurality of protruding bars 18b provided in a staggered pattern, the flow rate of the supplied raw material water W2 decreases in the anode electrode plate 16, The electrolysis reaction takes place effectively.

As shown in FIG. 9, a through hole 12b is formed at the center of the recess 12a of the anode cell 12, and a through hole 18c is formed at the center of the anode cell block 18 as shown in FIG. 3. As shown in FIG. 4, the anode electrode rod 14 is inserted into the through holes 12b and 18c. As shown in FIGS. 3 and 4, the front end is fitted into one of the plurality of through holes 16 a formed in the anode electrode plate 16, and the rear end protrudes from the lower surface of the electrolytic cell 10.
Further, in order to prevent leakage of the raw water W2 transmitted through the electrode rod 14, a cylindrical recess 12e is formed outside the through hole 12b in the anode cell 12, and sealing is performed by an O-ring 23 provided in the recess 12e. Processing has been done. The O-ring 23 is fixed by a holding plate 20 that fits into the recess 11e.

As shown in FIG. 1, the electrolytic cell 10 having the above structure is attached to the side surface of the support base 2 with a gradient of a predetermined angle θ with respect to the horizontal axis x. Specifically, in the flow path from the inlet 10 a to the outlet 10 b of the catholyte W 1, the downstream side is provided higher than the upstream side, and the flow path is formed at the bottom of the catholyte tank 3. It is provided below the inflow port 3b.
Furthermore, since the cathode electrode plate 15 that generates hydrogen gas is provided above the anode electrode plate 16, the generated hydrogen gas is prevented from staying in the plurality of through holes 15a of the cathode electrode plate 15 due to buoyancy. Yes.

With such a configuration, the hydrogen gas generated in the vicinity of the cathode electrode plate 15 at the time of electrolysis of the raw water W2 moves to the grooves 11a formed in a plurality of straight lines in the cathode cell 11 by buoyancy, and downstream due to the gradient of the flow path. It moves to the side and is discharged out of the tank.
Accordingly, hydrogen gas is continuously discharged from the outlet 3b of the tank 7 and floats, and the catholyte W1 is allowed to flow between the electrolytic cell 10 and the tank 3 without using a circulation driving source such as a pump by the action of pressure balance. Circulate.

In the ozone water generator 1 configured as described above, ozone water can be obtained as follows. From the pipe 6, raw water W 2 made of, for example, tap water is supplied to the electrolytic cell 10, and the raw water W 1 is brought into contact with the anode electrode plate 16.
Further, when the catholyte tank 3 is filled with the catholyte W 1, the catholyte W 1 is supplied into the cathode cell 11 of the electrolytic cell 10 through the pipe 4 and the pipe 5.

Next, when a DC voltage is applied between the electrodes via the cathode electrode rod 13 and the anode electrode rod 14 from the DC power source 30, the raw water W2 is electrolyzed on the anode electrode side in the electrolytic cell 10, and the raw water Ozone (O ₃ ) is generated in W2. Therefore, ozone water containing ozone generated in the electrolytic cell 10 is sent out from the pipe 7.

On the other hand, while the raw water W2 is electrolyzed, hydrogen gas is generated on the cathode electrode side in the electrolytic cell 10, and calcium ions and magnesium ions are released through the ion exchange membrane 17.
Here, the flow path of the catholyte W1 in the electrolytic cell 10 is provided so that the downstream side is higher than the upstream side, and the cathode electrode plate 15 is located above the anode electrode plate 16, so that it is generated on the cathode electrode side. The hydrogen gas moved to the downstream side by buoyancy, discharged from the outflow port 10b of the electrolytic cell 10 to the outside of the cell, and further floats in the tank 3 through the pipe 5.

  Further, when the hydrogen gas discharged from the electrolytic cell 10 continuously floats in the tank 3, a pressure balancing action works, and the catholyte W <b> 1 circulates between the electrolytic cell 10 and the tank 3. Accordingly, a one-way flow of the catholyte W1 in the electrolytic cell 10 is formed, and the calcium ions and magnesium ions released to the cathode electrode side are discharged from the electrolytic cell 10 and are thus stable for a long time. Ozone water is obtained.

  According to the above embodiment, in the flow path of the catholyte W1 in the electrolytic cell 10, the downstream side is provided higher than the upstream side, and the cathode electrode is located above the anode electrode. Thus, the hydrogen gas generated during the electrolysis of the raw water W2 can be moved downstream by buoyancy and discharged out of the tank. That is, the hydrogen gas discharged from the electrolytic cell 10 continuously floats in the catholyte tank 3, thereby causing a pressure balancing action and circulating the catholyte W 1 between the tank 3 and the electrolytic cell 10. be able to.

Further, as a result, a flow is formed in the catholyte W1 in the electrolytic cell 10, and a plurality of linear grooves 11a are formed from the upstream side to the downstream side in the flow path of the catholyte W1. The flow of W1 is rectified. Therefore, calcium ions and magnesium ions released to the cathode side during the electrolysis of the raw water W2 can be effectively moved from the vicinity of the electrodes and discharged out of the tank.
Therefore, with the above-described configuration, it is not necessary to use a circulating drive source such as a pump that has been conventionally used, and maintenance is facilitated with a simple configuration, and both manufacturing costs and maintenance costs can be reduced.

  In the above-described embodiment, the example in which the electrolytic cell 10 is attached to the side surface of the support base 2 with a gradient of the predetermined angle θ with respect to the horizontal axis x has been described. In the flow path of the catholyte W1 in the above, if the downstream side is provided higher than the upstream side and the flow path is provided below the inlet 3b of the catholyte tank 3, another form is adopted. be able to.

  For example, as shown in FIG. 11, the lower surface of the support base 2 may be formed so as to have a gradient of an angle θ with respect to the horizontal axis x, and the upper surface of the electrolytic cell 10 may be attached in surface contact therewith. At that time, in the flow path of the catholyte W1 in the electrolytic cell 10, the hydrogen gas generated in the cell is stored by attaching the downstream side (outflow port 10f) to the upstream side (inflow side 10a). Can be discharged outside. In addition, in FIG. 11, the example which formed the outflow port 10f from the electrolytic cell 10 of the catholyte W1 in the upper surface of the electrolytic cell 10 is shown.

  In the embodiment according to the present invention (FIGS. 1 and 11), the flow path (pipe) in the portion where the catholyte W1 does not contact the electrode in the electrolytic cell 10 is on the cathode electrode side, particularly on the outflow side. In order to make it easier to discharge the hydrogen gas generated in step 1, it is desirable that the gas be formed short in the flow path direction.

  The present invention is applied to an ozone water generator that electrolyzes raw water to generate ozone water.

FIG. 1 is a perspective view of an ozone water generator of the present invention. FIG. 2 is a perspective view of the electrolytic cell 10 included in the ozone water generator of FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is a cross-sectional view taken along line B-B in FIG. 5 is a cross-sectional view taken along the line CC in FIG. FIG. 6 is a perspective view of a cathode electrode plate included in the electrolytic cell. FIG. 7 is a perspective view of an anode electrode plate included in the electrolytic cell. 8A is a plan view of the electrode plate installation surface of the cathode cell, FIG. 8B is a cross-sectional view taken along the line KK in FIG. 8A, and FIG. 8C is FIG. 8A. It is II sectional view taken on the line. 9A is a plan view of the electrode plate installation surface of the anode cell, and FIG. 9B is a cross-sectional view taken along the line DD in FIG. 9A. FIG. 10A is a perspective view of an anode cell block installed in the anode cell, and FIG. 10B is a plan view of a contact surface with the anode electrode plate of the anode cell block. It is a perspective view which shows the other form of the ozone water generator of this invention. It is a block diagram which shows the structure of the conventional ozone water generator.

Explanation of symbols

1 Ozone water generator 2 Support stand 3 Cathode water tank (wash water tank)
3a Outlet 3b Inlet 4 Piping 5 Piping 6 Piping 7 Piping 8 Exhaust Pipe 10 Electrolyzer 10a Cathode Liquid Inlet 10b Cathode Liquid Outlet 10c Raw Material Water Inlet 10d Ozone Water Outlet 11 Cathode Cell 11a Groove 11b Rib 11c Space 11d 11e space 11f recess 12 anode cell 12a recess 12b through hole 12c space 12d space 12e recess 13 cathode electrode rod 14 anode electrode rod 15 cathode electrode plate (cathode electrode)
15a Through hole 16 Anode electrode plate (anode electrode)
16a Through-hole 17 Ion exchange membrane 18 Anode block 18a Plate-shaped block 18b Projection rod 20 Holding plate 21 Top plate 22 Bottom plate 23 O-ring 24 O-ring 25 Holding plate 30 DC power supply W1 Cathode solution (cleaning solution)
W2 raw water

Claims (5)

An electrolytic cell in which an ion exchange membrane is disposed between the anode electrode and the cathode electrode and a flow path of raw water in contact with the anode electrode and a flow path of cleaning liquid in contact with the cathode electrode are formed; An ozone water generator that electrolyzes raw water in contact with the anode electrode by applying a direct current voltage to generate ozone water,
A cleaning water tank that contains the cleaning liquid and has an outlet and an inlet for the cleaning liquid formed at the bottom, and communicates with a flow path of the cleaning liquid in the electrolytic cell through the outlet and the inlet,
The ozone water generator is characterized in that the flow path of the cleaning liquid in the electrolytic bath is provided on the upstream side of the upstream side and below the inlet of the cleaning liquid formed in the cleaning water tank.   The ozone water generator according to claim 1, wherein the cathode electrode is provided on an upper side of the anode electrode.   3. The ozone water generator according to claim 1, wherein, in the flow path of the cleaning liquid in the electrolytic bath, the diameter of the pipe through which the cleaning liquid flows is formed larger on the downstream side than on the upstream side.   The flow path of the cleaning liquid in the electrolytic cell is formed with a plurality of linear grooves from the upstream side to the downstream side in the flow path in contact with the cathode electrode. The ozone water generator described in any one of 3 above.   The zigzag-shaped groove part is formed in the flow path which contacts the said anode electrode from the upstream to the downstream from the flow path of the raw material water in the said electrolytic cell. An ozone water generator described in any of the above.

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