JP3297228B2 - Ozone water production equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone water producing apparatus for producing water in which ozone is dissolved, that is, ozone water.

[0002]

2. Description of the Related Art Conventionally, the following two methods are known as typical methods for obtaining ozone water. "Ozone aeration method" Ozone water is obtained by dissolving ozone in water by bringing gas and liquid into contact with high concentration gas phase ozone and water by an appropriate means such as aeration. "Water electrolysis" Ozone generated by electrolysis of water, focusing on the fact that ozone is mixed with oxygen generated on the anode side when electrolyzing water and that ozone is dissolved in water about 10 times as much as oxygen. Is dissolved in water under electrolysis to obtain ozone water.

[0003] As the above-mentioned "water electrolysis method", the present inventor previously described Japanese Patent Application Laid-Open No. 03-267390 (hereinafter, this application is simply referred to as "prior application").
An anode electrode 2 to which a DC voltage is applied and a cathode electrode 3 are superimposed on one surface and the other surface, and ozone water is obtained by electrolyzing water supplied to the anode electrode 2 side (shown in FIG. , But the reference numerals here correspond to those of the embodiment of the present application.). In this prior application, an electrolytic cell composed of a solid electrolyte membrane 1, an anode electrode 2, and a cathode electrode 3 is immersed in a water tank having a predetermined capacity, and water in this water tank flows through the anode electrode 2 side sequentially. It is designed to circulate. Further, a jacket covering the cathode electrode 3 is provided on the side of the cathode electrode 3 so as to electrically block a short circuit with water in the water tank, and to store hydrogen generated by electrolysis in this jacket by electrolysis outside the water tank. It is made to take out.

Although the purpose is strictly different from that of the present invention, an electrolytic production method of ozone as one of the methods for obtaining gas phase ozone by electrolyzing water is disclosed in Japanese Patent Application Laid-Open No. 01-31209.
No. 2 (hereinafter, this earlier application is referred to as “second earlier application”) and the like. According to the description in the claims of the second prior application, "In producing ozone by water electrolysis, a porous electrode having a platinum layer on one surface is used as an anode, and perfluorosulfone is formed on the platinum surface of the porous electrode. An electrolytic production method of ozone, characterized in that water electrolysis is carried out by pressing an acid-type cation exchange membrane against an acid. "

[0005] In the second prior application, the following points are known as prior art in the column of detailed description of the invention. 1. Platinum / cation exchange membrane / platinum That is, in order to obtain gas phase ozone by a water electrolysis method, it is known that a platinum anode electrode is stacked on one side of the cation exchange membrane and a platinum cathode electrode is similarly stacked on the other side. Met. 2. Platinum / cation exchange membrane / iridium or its oxide In other words, to obtain gas phase ozone by water electrolysis, a platinum anode electrode is provided on one side of the cation exchange membrane and iridium or its oxidation is provided on the other side. It has been known to stack cathode electrodes of different products. 3. When water is electrolyzed using a platinum anode electrode, platinum promotes an ozone generation reaction to ozonize the electrolyzed oxygen, but at the same time, the amount of ozone generated is reduced because the catalytic decomposition reaction of ozone occurs in parallel. Very few.

In the second prior application, an example of an apparatus for implementing the present invention is disclosed in the accompanying drawings.
Unfortunately, the specific structure is not clear because the display is too schematic and the detailed description of the invention does not include the description of the components, but it is apparent in FIG. 11 attached to the present application. It is presumed to be as shown.

That is, in FIG. 11, 1 is a solid electrolyte membrane of the present invention, 2 is an anode electrode, and 3 is a cathode electrode. The anode electrode 2 is made of a porous electrode material 2 such as a titanium material.
02 and the platinum layer 2 laminated on the porous electrode material 202
01 and 01. The anode electrode 2 is provided by pressing the platinum layer 201 against the solid electrolyte membrane 1. The cathode electrode 3 is made of an appropriate material (porous in the same manner as the anode electrode 2), and is pressed against the other surface of the solid electrolyte membrane 1 so that the solid electrolyte membrane 1 The electrode is sandwiched between the electrode 2 and the cathode electrode 3. One surface of the solid electrolyte membrane 1 is covered with a jacket 4 called an anode-side end plate, and water is sequentially supplied into the jacket 4 by a pump 30 or the like, and ozone generated as bubbles in the water is separated by gas. Gas phase ozone 3
2 (more precisely, oxygen mixed with ozone) is separated and recovered. In addition,
The other surface of the solid electrolyte membrane 1 is covered with a jacket 5 called a cathode-side end plate, and the jacket 5 is filled with water to collect or exhaust hydrogen 33 generated by electrolysis.

In the above-mentioned water electrolysis method, unlike ordinary electrolysis, the solid electrolyte membrane 1 is used to secure the transfer of electrons on both sides, so that pure ozone is obtained or calcium ions are added to the cathode electrode. Pure water is used as raw material water for the purpose of preventing the deposition and the like of such substances.

[0009]

However, the above-mentioned conventional ozone aeration method is suitable for obtaining high-concentration ozone water, and is currently the mainstream of ozone water production apparatuses. An ozonizer (usually, a discharge-type ozonizer is used and oxygen is passed through a corona discharge field to produce ozone in a corona discharge field) is required, and the ozonizer itself is large. In addition, the ozonizer requires a high-frequency high-voltage power supply and requires a large power supply, and furthermore, it is necessary to prepare pure oxygen as a raw material gas in a cylinder. There is a problem that it is complicated. Although it is possible to use air as the raw material gas, in this case, in order to obtain high-concentration ozone, an air dehumidifier or an adsorbent such as zeolite is used under a predetermined pressure condition. Therefore, it is necessary to provide an oxygen concentrator for increasing the oxygen concentration by adsorption and degassing.

On the other hand, the water electrolysis method has the advantages that the apparatus is small, the raw material is easily available in water, and the power supply can be tens of volts and tens of amps, so that the power supply apparatus can be small. But not suitable for obtaining high-concentration ozone water. That is, in the water electrolysis method, most of the consumed electric power is used for electrolyzing water into oxygen and hydrogen, and the ratio used for generating ozone is several percent or less. It takes about one hour to convert the water in the liter to 10 ppm ozone water. To continuously obtain high-concentration ozone water such as in the aeration method, it is necessary to use a β-phase PbO ₂ method described later. There is a problem that requires a gas-liquid separator and a gas-liquid mixer.

2 to 3 ppm of ozone water can kill E. coli,
It is effective for plant activation, etc., but has little effect on killing other bacteria with strong antibiotics, and is not expected to have much effect on bleaching or deodorization.
It is desired to supply a large amount of high-concentration ozone water of m or more, preferably 7 ppm or more, and there is a problem that this requirement cannot be satisfied by the conventional water electrolysis method.

According to the method of the second prior application, as described in the specification, 50 to 200 A / dm.
^{It is considered} that 0.05 to 0.5% by weight of ozone can be obtained at a current density of ² , and at the maximum value of 0.5% by weight,
It is about 300 ppm in pm conversion. Further, the maximum value of the ozone concentration obtained by each electrode described in the examples of the specification is 4600 ppm, and the maximum concentration of the ozone gas having this maximum concentration when dissolved in water at 20 ° C. is about 2.5 ppm. It was confirmed by experiment that it became ozone water.

Of course, in other water electrolysis methods, for example, the known β-phase PbO ₂ method, that is, the water electrolysis ozone generation method using lead dioxide as an anode, the ozone gas concentration is 15 to 1
Ultra-high concentration ozone gas of 7% can be obtained, and it is possible to produce high concentration ozone water of 10 ppm or more by using this.

However, the β-phase PbO ₂ method has a significant disadvantage. That is, β-phase PbO ₂ has an extremely unstable phase structure. For example, when power supply is stopped due to a power failure or the like, a phase change from β to α is instantaneously started. When the phase changes from β to α, the ozone generation efficiency is reduced to a fraction, and ozone is no longer generated when ordinary lead dioxide is used. Therefore, there is a problem that a backup power supply for maintaining the phase is required even when the use is stopped.

Further, since the β-phase PbO ₂ method uses lead, there is a trouble in that ozone gas is once taken out and redissolved in water in order to avoid contamination by a lead compound detached from the electrode. It has the problem of obstruction.

Accordingly, the present invention has been made to solve the above-mentioned problem, and an ozone water producing apparatus capable of easily and continuously obtaining high-concentration ozone water by a water electrolysis method using a noble metal electrode without using a lead compound. The purpose is to provide.

[0017]

In order to solve the above-mentioned problems, according to the present invention, in order to solve the above-mentioned problems, the solid electrolyte membrane 1 has an ozone generation catalyst function. An anode electrode 2 made of a wire mesh made by weaving a noble metal wire is pressed against a cathode electrode 3 made of a wire mesh on the other surface, and a metal plate provided with a large number of slits on the anode electrode 2 is put into the slit. The lath net 15 stretched and formed so as to form a net is overlapped, and the net of the lath net 15 is large.
The mesh of the anode electrode 2 is small,
And the lath net 15 passes in the direction crossing the surface and in the surface direction.
An anode jacket 4 covering the anode electrode 2 and a cathode jacket 5 covering the cathode electrode 3 are provided on the anode electrode 2 side and the cathode electrode 3 side of the solid electrolyte membrane 1,
The inlet jackets 6 and 6b and the outlets 7a and 7b allow the raw water to flow through the anode jacket 4 and the cathode jacket 5, respectively.
A pump 8 and a raw water tank 10 in which an electrolyte having a high conductivity is dissolved, in the middle of a circulation path 9 connecting the inflow port 6b and the outflow port 7b of the cathode jacket 5; In this method, the raw water is circulated from the outlet 7b to the inlet 6b so that the raw water is repeatedly used, and a technical means is employed in which a DC voltage is applied between the anode electrode 2 and the cathode electrode 3. .

The invention according to claim 2 provides a noble metal wire having an ozone generation catalytic function on one surface of the solid electrolyte membrane 1.
The anode electrode 2 made of a wire mesh formed by weaving the anode electrode 2 and the cathode electrode 3 made of a wire mesh is pressed against the other surface, respectively.
A lath net 15 formed by stretching a metal plate provided with a large number of slits such that the slits form a mesh is superimposed on the metal plate.
The mesh of the lath net 15 is large, and the mesh of the anode electrode 2 is
The anode electrode 2 and the lath net 15 are small,
The solid electrolyte membrane 1 has water permeability in the cutting direction and in the plane direction. The anode jacket 4 that covers the anode 2 and the cathode jacket that covers the cathode 3 are provided on the anode 2 side and the cathode 3 side of the solid electrolyte membrane 1. The anode jacket 4 and the cathode jacket 5 are provided with an inlet 6 through which raw water flows through the anode jacket 4 and the cathode jacket 5.
a, 6b and outlets 7a, 7b are provided, respectively. A pump 8 and calcium and magnesium dissolved in water are provided in the middle of a circulation path 9 connecting the inlet 6b and the outlet 7b of the cathode jacket 5. A raw water tank 10 in which the neutral salt is dissolved by removing the raw water, the raw water is circulated from the outlet 7b to the inlet 6b, and the raw water is repeatedly used,
The present invention employs technical means in which a DC voltage is applied between the anode electrode 2 and the cathode electrode 3.

Further, the invention of claim 3 provides a wire made of a noble metal having an ozone generation catalytic function on one surface of the solid electrolyte membrane 1.
The anode electrode 2 made of a wire mesh formed by weaving the anode electrode 2 and the cathode electrode 3 made of a wire mesh is pressed against the other surface, respectively.
A lath net 15 formed by stretching a metal plate provided with a large number of slits such that the slits form a mesh is superimposed on the metal plate.
The mesh of the lath net 15 is large, and the mesh of the anode electrode 2 is
The anode electrode 2 and the lath net 15 are small,
The solid electrolyte membrane 1 has water permeability in the cutting direction and in the plane direction. The anode jacket 4 that covers the anode 2 and the cathode jacket that covers the cathode 3 are provided on the anode 2 side and the cathode 3 side of the solid electrolyte membrane 1. The anode jacket 4 and the cathode jacket 5 are provided with an inlet 6 through which raw water flows through the anode jacket 4 and the cathode jacket 5.
a, 6b and outlets 7a, 7b are provided respectively, and a water supply pipe 12 connected to a supply port of tap water or natural water is connected to the inlet 6a of the anode jacket 4; A filter 11 is provided in the middle of a pump 12, and a pump 8 and a water tank 10 of a raw water in which an electrolyte having high conductivity is dissolved are provided in a middle of a circulation path 9 connecting the inlet 6 b and the outlet 7 b of the cathode jacket 5. And circulating the raw water from the outlet 7b to the inlet 6b so that the raw water is repeatedly used,
The present invention employs technical means in which a DC voltage is applied between the anode electrode 2 and the cathode electrode 3.

Further, the invention of claim 4 relates to a precious metal wire having an ozone generation catalytic function on one surface of the solid electrolyte membrane 1.
The anode electrode 2 made of a wire mesh formed by weaving the anode electrode 2 and the cathode electrode 3 made of a wire mesh is pressed against the other surface, respectively.
A lath net 15 formed by stretching a metal plate provided with a large number of slits such that the slits form a mesh is superimposed on the metal plate.
The mesh of the lath net 15 is large, and the mesh of the anode electrode 2 is
The anode electrode 2 and the lath net 15 are small,
The solid electrolyte membrane 1 has water permeability in the cutting direction and in the plane direction. The anode jacket 4 that covers the anode 2 and the cathode jacket that covers the cathode 3 are provided on the anode 2 side and the cathode 3 side of the solid electrolyte membrane 1. The anode jacket 4 and the cathode jacket 5 are provided with an inlet 6 through which raw water flows through the anode jacket 4 and the cathode jacket 5.
a, 6b and outlets 7a, 7b, respectively, and a water supply pipe 12 connected to a tap water or natural water supply port is connected to the inflow port 6a of the anode jacket 4; 12
In the middle of the process, an ion exchange resin tank 13 for removing dissolved electrolyte is provided, and the raw water is circulated from the outlet 7b to the inlet 6b so that the raw water is repeatedly used. Technical measures taken by applying a DC voltage in between.

Further, the invention of claim 5 provides an anode electrode 2 composed of a wire mesh made of a noble metal wire having an ozone generation catalytic function on one surface of the solid electrolyte membrane 1 and a wire mesh on the other surface. And a lath net 15 formed by stretching a metal plate provided with a large number of slits on the anode electrode 2 such that the slits form a mesh.
The mesh of the lath net 15 is large and the mesh of the anode electrode 2 is large.
Is small, and the anode electrode 2 and the lath net 15
An anode jacket 4 covering the anode electrode 2 and a cathode jacket covering the cathode electrode 3 are provided on the solid electrolyte membrane 1 on the anode electrode 2 side and the cathode electrode 3 side. The anode jacket 4 and the cathode jacket 5 are provided with an inlet 6 through which raw water flows through the anode jacket 4 and the cathode jacket 5.
a, 6b and outlets 7a, 7b, respectively, and a water supply pipe 12 connected to a tap water or natural water supply port is connected to the inflow port 6a of the anode jacket 4; 12
On the way, a filter 11 and an ion-exchange resin tank 1 disposed downstream of the filter 11 for removing a dissolved electrolyte.
3 and an electrolyte dissolving device 14 disposed downstream of the ion exchange resin 13 for dissolving the electrolyte, and in the middle of a circulation path 9 connecting the inlet 6b and the outlet 7b of the cathode jacket 5 to each other. And a water tank 10 in which a high conductivity electrolyte is dissolved. A raw water is circulated from an outlet 7b to an inlet 6b so that the raw water is repeatedly used. A technical measure is taken in which a DC voltage is applied between the cathode electrode 3 and the cathode electrode 3.

Further, according to the invention of claim 6, the solid electrolyte membrane 1 is made of a noble metal having an ozone generation catalytic function on one surface thereof.
An anode electrode 2 made of a wire mesh formed by weaving a wire is pressed against a cathode electrode 3 made of a wire mesh on the other surface, and a metal plate provided with a large number of slits on the anode electrode 2 serves as a mesh. Lath net 15 stretched and formed as shown
The mesh of the lath net 15 is large and the mesh of the anode electrode 2 is large.
Is small, and the anode electrode 2 and the lath net 15
An anode jacket 4 covering the anode electrode 2 and a cathode jacket covering the cathode electrode 3 are provided on the solid electrolyte membrane 1 on the anode electrode 2 side and the cathode electrode 3 side. The anode jacket 4 and the cathode jacket 5 are provided with an inlet 6 through which raw water flows through the anode jacket 4 and the cathode jacket 5.
a, 6b and outlets 7a, 7b, respectively, and a water supply pipe 12 connected to a tap water or natural water supply port is connected to the inflow port 6a of the anode jacket 4; 12
On the way, a filter 11 and an ion-exchange resin tank 1 disposed downstream of the filter 11 for removing a dissolved electrolyte.
3 and an electrolyte dissolving device 14 disposed downstream of the ion exchange resin 13 for dissolving the electrolyte, and in the middle of a circulation path 9 connecting the inlet 6b and the outlet 7b of the cathode jacket 5 to each other. A pump 8 and a water tank 10 for raw water in which neutral salts are dissolved by removing calcium and magnesium dissolved in water. The raw water is circulated from an outlet 7b to an inlet 6b to supply raw water. Is used repeatedly, and a technical measure is taken in which a DC voltage is applied between the anode electrode 2 and the cathode electrode 3.

[0023]

Further, the invention of claim 7 is the invention according to claim 1, wherein the neutral salt or the electrolyte described in claim 6 is
Technical means characterized by being one of sodium chloride, potassium chloride and sodium sulfate.

[0025]

[Action] [Ozone water generating action] Therefore, in the ozone water producing apparatus of the present invention, a DC voltage is applied between the two electrodes 2 and 3, and the anode jacket 4 is supplied from the water inlet 6a.
Supply water inside. Then, the water is electrolyzed, and oxygen and ozone are generated on the anode electrode 2 side, hydrogen is generated on the cathode electrode 3 side, and the generated ozone is dissolved in the water, becomes ozone water, and flows out from the outlet 7a. It works as before. The hydrogen generated on the side of the cathode electrode 3 by the electrolysis of water turns into bubbles to form an outlet 7b of the cathode jacket 5.
Runs out with more water.

In the present invention, since a noble metal wire mesh having an ozone generation catalytic function is used for the anode electrode 2, a fine gap where the wire mesh member gradually separates from a portion where the wire mesh member completely adheres to the solid electrolyte membrane 1 is formed. The effect is obtained that more water can flow through the strong electric field.

That is, the anode electrode 2
Oxygen mixed with ozone is generated near the interface between the part in contact with the solid electrolyte membrane 1 and the part distant from the solid electrolyte membrane 1. FIG. 7 schematically shows the state of generation of oxygen and ozone according to the present invention. The anode electrode 2 having a circular cross section (more precisely, a constituent member of the anode electrode 2) comes into contact with the solid electrolyte membrane 1. Since no water is interposed in the contact portion L1 where both are in close contact, no electrolysis occurs. However, since the anode electrode 2 is made of a wire net, the constituent metal wire has a circular cross-section, so that the distance between the anode electrode 2 and the solid electrolyte membrane 1 gradually increases as the distance from the contact portion L1 increases. Then, the most intense electrolysis occurs at the portion closest to the contact portion L1, and the amount of electrolysis decreases as the distance from the contact portion L1 increases, and the amount of the electrolysis is as shown by a horizontal straight line on the right side in FIG. Become. The site indicated by reference numeral L2 in FIG. 5 is an electrolysis generation site, and the electrolysis generation site L2 has a slight distance of 50 to 200 microns on one side, depending on the diameter of the anode electrode 2 and the electric field strength. Something was observed.

Therefore, the place of electrolysis L shown in FIG.
2, if L2 is a discharge density effective for generating ozone, the end of the anode electrode 2 has a vertical wall shape with respect to the solid electrolyte membrane 1 as shown in FIG. A horizontal line extends from both upper and lower ends of the anode electrode 2 in FIG. 7, and a portion surrounded by the horizontal line, a part of the anode electrode 2 and a part of one surface of the solid electrolyte membrane 1 can be used extra as the electrolysis generation place L2. The effect is as follows.

In the present invention, since the anode electrode 2 is pressed against the solid electrolyte membrane 1, the solid electrolyte membrane 1 is locally dented by the pressing force. However, since the solid electrolyte membrane 1 is rigid, this depression is Without necessarily contacting the outer surface of the anode electrode 2, the radius of the depression becomes larger than the radius of the anode electrode 2 as shown in FIG. 8, and the discharge field capacity increasing portion as shown by the symbol L 3 in FIG. It has the effect of forming

The above-mentioned action of allowing a larger amount of water to flow through a strong electric field is based on the premise that the electric conductivity of water is guaranteed to some extent. This effect is not remarkably exhibited when a low material is used. However, in the present invention, since the raw water in which the electrolyte is dissolved is used, the movement of the electrons is hardly hindered by the interposition of water, and acts to generate a strong electric field in a wide area.

Further, in the present invention, since the cathode electrode 3 also uses a wire mesh, the same effect as described above is exhibited.

Further, according to the present invention, a pump 8 and a raw water tank in which an electrolyte having a high conductivity is dissolved are provided in the middle of a circulation path 9 connecting the inlet 6b and the outlet 7b of the cathode jacket 5. And circulates raw water from the outlet 7b to the inlet 6b.
Since the raw water can be repeatedly used by recycling, the cathode electrode 3
In addition, when the electrolysis is performed using tap water or natural water as the raw water, dissolved calcium, magnesium, etc. , precipitate and adhere to the cathode electrode 3 side. To reduce the conductivity,
When the raw material water is repeatedly used, the action of stopping the progress of the precipitation of calcium and the like is exhibited.

Further, the invention of claim 2 provides a circuit 9 for connecting the inlet 6b and the outlet 7b of the cathode jacket 5 to each other.
Pump 8 and calcium dissolved in water on the way
A water tank with raw water from which nesium has been removed to dissolve neutral salts
10, and circulates the raw water from the outlet 7b to the inlet 6b.
So that the raw water can be used repeatedly
Thus, it has an effect of preventing the deposition and deposition of calcium and the like on the cathode electrode 3.

Further, according to the invention of claim 3 , the inflow port 6a of the anode jacket 4 is provided with both tap water and natural water.
The water supply pipe 12 connected to the outlet is connected to the water supply pipe 12.
The filter 11 is provided in the middle of the
Of the circulation path 9 connecting the inlet 6b and the outlet 7b of the
The source where the pump 8 and the electrolyte with high conductivity are dissolved
A water tank 10 is provided from the outlet 7b to the inlet 6b.
Recirculate the raw water so that it can be used repeatedly.
Therefore , tap water or natural water from rivers and lakes can be easily obtained with ozone water.

Further, according to the invention of claim 5 , tap water or natural water is supplied to the inlet 6 a of the anode jacket 4.
The water supply pipe 12 connected to the outlet is connected to the water supply pipe 1.
In the middle of 2, the filter 11 and the lower part of the filter 11
Ion-exchange resin tank for removing dissolved electrolyte placed on the upstream side
13 and when disposed on the downstream side of the ion exchange resin 13
In both cases, an electrolyte dissolving device 14 for dissolving the electrolyte is provided.
The inlet 6b and the outlet 7 of the cathode jacket 5 are obtained.
b and the high conductivity of the pump 8 in the middle of the
And a water tank 10 in which raw material water is dissolved.
The raw water is circulated from the outlet 7b to the inlet 6b,
Since it is used repeatedly , tap water or natural water from rivers and lakes can be more easily obtained with ozone water, the electrolyte can be removed once, the desired electrolyte can be dissolved in the desired amount, and stable operation can be achieved. It shows.

Further, according to the invention of claim 6 , the inflow port 6a of the anode jacket 4 is provided with tap water or natural water.
The water supply pipe 12 connected to the supply port is connected to the water supply pipe.
In the middle of 12, the filter 11 and the filter 11
Ion-exchange resin for removing dissolved electrolytes located downstream
Tank 13 and disposed downstream of the ion exchange resin 13
And an electrolyte dissolving device 14 for dissolving the electrolyte.
The cathode jacket 5 has an inlet 6b and an outlet 7b.
Dissolved in the pump 8 and water in the middle of the circulation path 9 connecting
Calcium and magnesium to remove neutral salts
And a water tank 10 for dissolving the raw water.
The raw water is circulated to the inlet 6b and used repeatedly.
As described above, stable operation can be performed as described above, and precipitation of calcium and the like on the cathode electrode 3 can be prevented.
It has the function of preventing the accumulation.

Further, in the invention of claim 7 , since any one of sodium chloride, potassium chloride and sodium sulfate is used for the neutral salt and the electrolyte, for example, when sodium chloride (NaCl) is used, chlorine becomes an anode. On the electrode side, sodium moves to the cathode electrode side, and on the anode side, hydrochloric acid (HC
l) is generated and exhibits an action of obtaining ozone water having a low acidic ozone attenuation rate.

[0038]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings. In the drawing, reference numeral 1 denotes a solid electrolyte membrane, and an anode electrode 2 and a cathode electrode 3 to which a DC voltage has been applied are superposed on one surface and the other surface of the solid electrolyte membrane 1, and water supplied to the anode electrode 2 side is removed. It is the same as in the prior art that ozone water is obtained by electrolysis.

That is, an anode electrode 2 is overlaid on one surface of the solid electrolyte membrane 1 and a cathode electrode 3 is overlaid on the other surface, and a power supply (not shown) is provided between the anode electrode 2 and the cathode electrode 3. The output terminal of the device is electrically connected so that a DC voltage is applied, as in the prior art.

The anode electrode 2 and the cathode electrode 3 are not overlapped so as to completely cover the solid electrolyte membrane 1, but are provided with a large number of through-holes so that the anode electrode 2 and the cathode electrode 3 The water supplied to the anode jacket 4 and the cathode jacket 5 overlaps with the electrolyte membrane 1 having a contact portion and a non-contact portion, and the water comes into contact with the anode electrode 2 and the cathode electrode 3. As a result, water can be brought into direct contact with the solid electrolyte membrane 1 as in the prior art.

As the solid electrolyte membrane 1, a conventionally known one can be used, and a fluorine-based cation exchange membrane (thickness of 300 μm · 1 in this embodiment) having high durability against ozone generated.
(0 cm × 17 cm). ) Can be used. As the anode electrode 2, conventionally known ones such as lead dioxide, platinum, and gold can be used.
Conventionally known materials such as gold, silver and iridium can be used.

The embodiment of the present invention employs the above-described anode electrode 2.
Noble metal wire mesh having an ozone generation catalytic function is used.

First, platinum is used as the material of the anode electrode 2 in this embodiment. However, it is conventionally known that platinum is used for this kind of electrode, and a wire mesh may be used for the anode electrode 2. Proposed in the earlier application example. However, in the prior application, the wire mesh is focused only on the fact that the mesh can be used as a large number of through-holes. It pays attention to. In this example, the anode electrode 2 was formed by weaving a platinum wire having a diameter of 0.4 mm into a mesh of 80 mesh.

Since the wires of the wire mesh are circular in cross section, when the wire mesh is superimposed on the solid electrolyte membrane 1, a portion where the distance from the contact portion to the solid electrolyte membrane 1 is gradually increased from the contact portion can be formed as shown in FIG. Also, since the wire mesh has a large number of irregularities on both surfaces, a large number of portions can be formed at a distance from the solid electrolyte membrane 1 sequentially from the contact portion.
To form a narrow gap. And this anode electrode 2
There are a large number of narrow gaps between the solid electrolyte membrane 1 and water, so that a large volume of water can be located in this gap portion,
This part corresponds to a strong electric field generating place required for electrolysis (the above-mentioned electrolysis generating place L2).

Since the anode electrode 2 is pressed against the solid electrolyte membrane 1, the solid electrolyte membrane 1 is locally dented by the pressing force. However, since the solid electrolyte membrane 1 is rigid, this depression is formed in the anode electrode 2. Figure 8 without necessarily touching the outer surface of the
As shown in FIG. 8, the radius of the depression becomes larger than the radius of the anode electrode 2, and as shown in FIG. 8, the discharge field capacity increasing portion L3 is formed by the difference between the radius of the anode electrode 2 and the radius of the depression. You can do it. In FIG. 8, L4 is a solid electrolyte membrane 1 that generates a strong electric field required for electrolysis.
3 shows the distance from the anode electrode 2.

Further, it is a matter of course that the wire mesh has a large number of meshes, so that it has water permeability in the direction crossing the surface. It is also possible to pass water between the plates by sandwiching it between two plates, in other words having water permeability in the direction of the surface of the wire mesh,
New water can always be supplied to a large number of narrow gaps between the anode electrode 2 and the solid electrolyte membrane 1 described above.

The anode 2 of the solid electrolyte membrane 1
An anode jacket 4 covering the anode electrode 2 and a cathode jacket 5 covering the cathode electrode 3 are provided on the side of the cathode electrode 3, and an electrolyte is dissolved in the anode jacket 4 and the cathode jacket 5. An inlet 6 through which raw water flows in the anode jacket 4 and the cathode jacket 5.
a, 6b and outlets 7a, 7b are provided respectively.

The anode jacket 4 is made of a waterproof material having an ozone-resistant material such as Teflon or glass (a metal inner surface coated with these ozone-resistant materials may be used. An acrylic material may be used. Is considered to have ozone resistance, but ozone water is not so durable.) A two-piece box in which a solid electrolyte membrane 1, an anode electrode 2, and a cathode electrode 3 are sandwiched in the center It is configured in a shape. Although not shown in the figure, the anode jacket 4 and the cathode jacket 5 are mutually fastened with fastening screws (see FIG. 5).
Reference numeral 35 shown in FIG. 6 is a fastening screw insertion hole. ) And a conventionally known binder mechanism.

Therefore, the water flowing from the inlets 6a, 6b flows into the anode jacket 4 and the cathode jacket 5, flows through the anode jacket 4 or the cathode jacket 5, and flows out of the outlets 7a, 7b, respectively. But
When water is allowed to flow in the direction parallel to the surface of the wire mesh on the outside of the anode electrode 2 made of a conventional wire mesh, even if the wire mesh has water permeability in the surface direction, pressure loss occurs in that portion. Is very large, so that there is almost no flow of water in the wire mesh direction.

Therefore, in the illustrated embodiment, a lath net 15 made of a corrosion-resistant metal (corrosion resistance means ozone (water) resistance) is stored on the outer surface side of the anode electrode 2 in an overlapping manner. . The lath net 15 is formed by stretching a metal plate having a large number of slits provided in a staggered manner so that the slits form a mesh. The portion a in FIG. At the upper part of the part a, there is a low step part b which is lower by one step (or inclined so that the tip side becomes lower gradually),
The mesh portions c, c extending obliquely upward and downward from the low step portion b are inclined so that the tip side becomes higher sequentially, and the upper step portions a,
a.

The lath net 15 has a similar shape on the back side because the thickness of the metal plate used is constant. Therefore, the lath net 15 is a net formed by a single plate, and the outer shape is the same as a wire net formed by knitting a wire. Will have. That is, specifically, the movement (flow) of water from above to below in FIG. 1 to FIG.
Is also possible.

In this embodiment, the lath net 15 is made of a titanium plate having a thickness of 1 mm. Was used. Although this lath net 15 was not mentioned in the description of the above-mentioned operation, the operation as a current collecting electrode and the pressing plate as a pressing plate for suppressing the easily bent anode electrode 2 and uniformly pressing the solid electrolyte membrane 1 against the solid electrolyte membrane 1 were also described. It also has an effect.

In this embodiment, the anode electrode 2 and the lath net 15 are tightly inserted into the anode jacket 4 and the cathode jacket 5. Here, the “tight entry” means that the anode electrode 2 and the lath net 15 enter the anode jacket 4 tightly and tightly, so that if a large allowance is provided in the jacket 10, water easily flows. Since the water flows only through the portion having the least pressure loss), the water flowing into the anode jacket 4 through the inlet 6a by eliminating the margin is entirely passed through the anode electrode 2 and the lath net 15. And flows out from the outlet 7a.

However, even if the water enters the space, it is sufficient that the whole amount of water flows through the anode electrode 2 and the lath net 15. In the example shown in FIG. 5, a guide path 5a is provided on the downstream side of the inflow port 6a so that the width of the flow path is sequentially increased to the width between the anode electrode 2 and the lath net 15. 2 and lath net 1
5 may not be stored. Such a guide path 5a is a conventional means for uniformly flowing a fluid through the anode jacket 4, and when water is supplied directly to the anode jacket 4 having a larger diameter section than a thin water supply pipe, the inlet 6
Water is difficult to flow in places far from left and right near a, and the function of the anode electrode 2 cannot be used effectively on all surface parts. Of course, it is desirable to make An outflow guide path 5b for sequentially narrowing the flow path width from the inside of the anode jacket 4 is provided upstream of the outflow port 7a, and the inside of the outflow guide path 5b is also vacant.

Further, in the example shown in FIG. 6, one or both of the anode electrode 2 and the lath net 15 are omitted in the center of the anode jacket 4 in the flow direction of water, and the space 5c is provided in the center. Is provided. However, this part is also the solid electrolytic chamber membrane 1
Are stored continuously. The empty space 5c reduces the effective area of the anode electrode 2.
As for c, since the anode electrode 2 and the lath net 15 do not exist, the diameter of the flow path becomes large, so that the flow velocity becomes slow and the stirring effect can be expected, and the function of securing time for dissolving ozone in water can be expected. Things.

The guide paths 5a, 5b or the empty space 5c may be provided as described above, or the anode electrode 2 (not shown).
Even if a space corresponding to the space 5c is provided on the upstream side or downstream side of the flow of water between
If the water does not communicate with the outlet 7a, as a result, the entire amount of water flows through the anode electrode 2 and the lath net 15, and such a water is also referred to as close-up in the present application. . Although not shown, a plurality of the lath nets 15 may be stacked and closely inserted into the jacket 10.

When the total amount of water flowing through the anode jacket 4 passes through the anode electrode 2 and the lath net 15 with the inflow port 6a at one end and the outflow port 7a at the other end, the water becomes In order to find a slight gap between the anode electrode 2 and the lath net 15, the flow direction is changed in a complicated manner and flows. That is, the water pumped into the anode jacket 4 passes through a complicated labyrinth-like flow path while changing its direction in search of a slight gap flow path. In particular, the mesh portion of the lath net 15 has a larger flow path diameter and a larger empty space volume than the other small gap flow paths through which the water can pass, and the net wire portions c, c Since the water is twisted, the water flowing into the mesh becomes a swirling flow, that is, a vortex. This eddy current occurs in the vicinity of the anode electrode 2, and since the anode electrode 2 uses a wire mesh, water on the surface of the solid electrolyte membrane 1 can be sprayed. To cause a flow along the surface of the solid electrolyte membrane 1 to cause water to flow without stagnating even in a slight gap between the anode electrode 2 and the surface of the solid electrolyte membrane 1.

That is, the reason why the anode electrode 2 and the lath net 15 are closely overlapped in the anode jacket 4 is that the mesh of the anode electrode 2 is made as small as possible so that the contact between the solid electrolyte membrane 1 and the anode electrode 2 can be made. In order to secure a large number of interface portions between the contact portion and the non-contact portion, if the anode jacket 4 is formed of only the dense meshed anode electrode 2, the pressure loss will inevitably increase, and the solid electrolyte membrane 1 and the anode electrode The water in the narrow gap with 2 becomes difficult to flow, and water stagnates in the narrow gap.

However, if a flow path with a small pressure loss and easy flow of water is provided outside the anode electrode 2, it becomes more difficult for water to flow down inside the wire mesh. Therefore, the main purpose of the lath net 15 is to eliminate the above-mentioned stagnation. The net of the lath net 15 is relatively large, and the nets c, c are twisted. The water flowing in the direction forms a vortex Y2 as shown in FIG. 10 at each mesh part, and the water in the narrow gap between the solid electrolyte membrane 1 and the anode electrode 2 is also swallowed to eliminate stagnation. Things.

The passage of water through a complicated maze ensures the frequency of gas-liquid contact due to the agitation force, and the eddy currents are generated on the surface of the solid electrolyte membrane 1, in particular, on the bubbles ( An electrically defective conductor) is quickly taken into water to ensure a state in which a large amount of current flows between the anode electrode 2 and the solid electrolyte membrane 1 (more precisely, between the anode electrode 2 and the cathode electrode 3). .

The raw water used in the present invention may be tap water or natural water, and may be Ca ²⁺ , M
An electrolyte such as g ²⁺ is dissolved.

Then, a DC voltage is applied between the anode electrode 2 and the cathode electrode 3. That is, although omitted in the figure, a DC voltage power supply is prepared and its output terminal is connected to the anode electrode 2.
And the cathode electrode 3.

In FIG. 1, reference numeral 11 denotes a filter,
Reference numeral 16 denotes a flow control valve.

According to the present invention, in addition to the above structure, the inlet 6b and the outlet 7b of the cathode jacket 5 are connected.
Pump 8 and electrolyte with high conductivity are dissolved in the middle of circulation circuit 9
And a water tank 10 in which the raw water is flowing.
The raw water is circulated to the inlet 6b and used repeatedly.
It is characterized by the fact that.

One of the reasons for using the circulation path 9 is to make effective use of water. However, when the water in which the electrolyte is dissolved is electrolyzed, Ca ²⁺ , S
Since i ²⁺ , Mg ^2+, etc. are deposited on the cathode electrode 3 to reduce the conductivity, the progress of these depositions is prevented. By circulating water, a predetermined amount or more of the electrolyte can be reduced.
The active electrolysis can be maintained by maintaining the conductivity at a predetermined level without depositing on the surface.

In FIG. 2 and FIG. 3, reference numeral 17 denotes a treatment layer for burning or adsorbing hydrogen.

The invention according to claim 2 provides a circuit 9 for connecting the inlet 6b and the outlet 7b of the cathode jacket 5 to each other.
Pump 8 and calcium dissolved in water on the way
A water tank with raw water from which nesium has been removed to dissolve neutral salts
10, and circulates the raw water from the outlet 7b to the inlet 6b.
The material water is repeatedly used by recycling.

[0068] That is, in advance of calcium to the aquarium 10 of "claim 1" (Ca), magnesium (Mg), silicon (S
The feature of the present invention is that the raw material water in which the neutral salt is dissolved by removing the i) is introduced so that calcium (Ca) or the like is not deposited on the cathode electrode 3. To remove electrolytes such as calcium, chlorine (Cl2) can be easily removed by passing through an activated carbon tank, and other electrolytes cannot be removed by activated carbon. When a desired amount of a neutral salt is dissolved in the water from which these electrolytes have been removed to obtain a raw material water, for example, when a material obtained by dissolving sodium chloride in the raw water is used, Na + And sodium hydroxide (NaOH), and sodium does not deposit on the cathode electrode 3. The neutral salt becomes a typical electrolyte when dissolved in water, but the neutral salt and the electrolyte are distinguished here because the electrolyte is used in a broader sense.

Further, in the invention of claim 3 , in addition to the above configuration, the inflow port 6 a of the anode jacket 4 is provided with tap water or self-contained water.
The water supply pipe 12 connected to the raw water supply port is connected to the water supply pipe.
A filter 11 is provided in the middle of the pipe 12 and the cathode 11
A circulation connecting the inlet 6b and the outlet 7b of the jacket 5
The pump 8 and the high-conductivity electrolyte dissolve in the middle of the
With a raw water tank 10 which flows in from the outlet 7b.
It is characterized in that the raw water is circulated through the port 6b and the raw water is repeatedly used .

The water that can be easily obtained is tap water first, followed by river lake water and spring water. These include
Normally, various substances are dissolved in advance and have a certain degree of conductivity, so that they may be used as described above. However, since solid matter may be mixed in the natural water, it may be used after being filtered by the filter 11. In addition, although there is little possibility that solid matter will be mixed in tap water,
Instead, in Japan, a relatively large amount of chlorine is mixed. Therefore, when it is desired to remove the chlorine, the filter 11 may be used by removing the chlorine by using activated carbon or a filter containing activated carbon.

Further, the invention according to claim 5 is characterized in that the water supply
In the middle of the tube 12, a filter 11 and the filter 11
-Exchange tree for removing dissolved electrolytes located downstream of the plant
A fat tank 13 and a downstream side of the ion exchange resin 13.
And an electrolyte dissolving device 14 for dissolving the electrolyte.
And an inlet 6 b and an outlet 7 of the cathode jacket 5.
b and the high conductivity of the pump 8 in the middle of the
And a water tank 10 in which raw material water is dissolved.
The raw water is circulated from the outlet 7b to the inlet 6b,
It is used repeatedly .

The ion exchange resin tank 13 may be a conventionally known one, and the electrolyte dissolving device 14 includes an electrolyte container 14a, an outflow control valve 14b, and a mixing device 14c.
And the like, and the outflow control valve 14b is
It may be controlled by d or the like.

As described above, when a desired amount of the electrolyte is dissolved in the anode jacket 4, the conductivity is maintained and active electrolysis is secured. By maintaining this conductivity, a stable operation can be performed. It is what becomes. On the anode jacket 4 side, Ca ^{2+ and the} like are not electrically adsorbed on the anode electrode, so they do not deposit even if they are deposited by electrolysis, so that an electrolyte containing them can be used.

It is to be noted that, by removing impurities dissolved in tap water or natural water once and dissolving a desired amount of the electrolyte in the electrolyte dissolving device 14, stable operation becomes possible, and ozone water of uniform quality is always obtained. It is obtained.

The invention according to claim 6 is an anode jaw.
Supply of tap water or natural water to the inlet 6a of the ket 4
The water supply pipe 12 connected to the mouth is connected to the water supply pipe 12.
Between the filter 11 and the downstream of the filter 11
Ion exchange resin tank 1 for removing dissolved electrolyte placed on the side
3 and disposed on the downstream side of the ion exchange resin 13
In addition, an electrolyte dissolving device 14 for dissolving the electrolyte is provided.
The inlet 6b and the outlet 7b of the cathode jacket 5
In the circulation path 9 connecting the pump 8 and the water
Calcium and magnesium to dissolve neutral salts
And a water tank 10 in which the raw water is supplied.
The raw water is circulated through the mouth 6b and the raw water is repeatedly used.
Like that .

In order to ensure conductivity, only one surface of the solid electrolyte membrane 1 is not sufficient, and the flow of electrons passing through the solid electrolyte membrane 1 must be smoothly performed at both the entrance side and the exit side. . Therefore, in the invention of this section, the raw material water in which the electrolyte is dissolved is supplied to both the anode jacket 4 and the cathode jacket 5, but both of them dissolve a desired amount of the electrolyte and secure a stable operation. At the same time, electrolyte deposition on the cathode electrode 3 is prevented.

Further, the invention of claim 7 relates to the use of any one of sodium chloride, potassium chloride and sodium sulfate for the neutral salt and the electrolyte described in claims 1 to 6. It is a characteristic.

When sodium chloride, potassium chloride, and sodium sulfate are used for the cathode jacket, as described above,
Although a decrease in conductivity can be prevented without generating a deposit on the cathode electrode, when these are used on the anode jacket 4 side,
When sodium chloride is used, chlorine stays on the anode electrode 2 side (does not move from the cathode jacket 5 side), and sodium moves to the cathode electrode side 3 and the anode electrode 2
On the side, chlorine and water hydrogen ions combine to form hydrochloric acid (HC
1) is generated, and acidic ozone water can be obtained. The same applies to potassium chloride, and to sodium sulfate, sulfuric acid (H ₂ S
O ₄ ) occurs. This ozone water in which a small amount of hydrochloric acid or sulfuric acid is dissolved can be expected to have a bactericidal activity and a bleaching power even in hydrochloric acid and sulfuric acid. However, it is very small in terms of the dissolution rate. It is noted that it takes a long time to decay, compared to neutral ozone water,
As a result of the experiment, it was confirmed that the half-life of ozone water having a pH of 4 was about 6 times.

[0079]

As described above, the present invention can provide an ozone water producing apparatus capable of continuously producing high-concentration ozone water with a very simple and small-sized apparatus without using a lead compound. It is.

Further, according to the present invention, a pump is provided in the middle of the circulation path 9 connecting the inlet 6b and the outlet 7b of the cathode jacket 5.
Tank with raw water in which the high-conductivity electrolyte is dissolved
10, and circulates the raw water from the outlet 7b to the inlet 6b.
Since the raw water is repeatedly used by recycling, an ozone water producing apparatus capable of operating stably for a long time without calcium or the like being deposited on the cathode electrode 3 can be provided.

The invention according to claim 3 is characterized in that the inflow port 6a of the anode jacket 4 is provided with a tap water or natural water supply port.
The connected water supply pipes 12 are connected, and in the middle of the water supply pipes 12.
Is provided with a filter 11, and the cathode jacket 5
In the middle of the circulation path 9 connecting the inflow port 6b and the outflow port 7b
Pump 8 and raw water in which electrolyte with high conductivity is dissolved
A water tank 10 is provided, and raw water is supplied from an outlet 7b to an inlet 6b.
Is circulated to use the raw water repeatedly.
The in, always maintaining the properties of the raw water of the anode electrode side to the constant, as it can provide a stable concentration ozone water producing apparatus ozone obtained for.

Further, according to the invention of claim 3 , the inflow port 6 a of the anode jacket 4 is provided with a common water supply port of tap water or natural water.
The water supply pipe 12 connected to the water supply pipe 12 is connected.
A filter 11 is provided therein, and the cathode jacket 5 is provided.
Of the circulation path 9 connecting the inlet 6b and the outlet 7b
Water in which the pump 8 and the electrolyte with high conductivity are dissolved
And the water tank 10 is provided.
Water is circulated and raw water is used repeatedly
Runode, those that can provide a more easily ozone water production apparatus ozone water is obtained a natural water tap water or rivers lakes.

Further, according to the invention of claim 5 , the inflow port 6a of the anode jacket 4 is provided with a tap water or natural water supply port.
The water supply pipe 12 connected to the water supply pipe 12 is connected.
On the way, the filter 11 and the downstream side of the filter 11
Exchange resin tank 13 for dissolving dissolved electrolyte placed in
And disposed on the downstream side of the ion exchange resin 13.
And an electrolyte dissolving device 14 for dissolving the electrolyte.
And the inlet 6b and the outlet 7b of the cathode jacket 5
Pump 8 and a high conductivity
A water tank 10 in which raw material water in which the decomposition is dissolved is provided;
The raw water is circulated from 7b to the inflow port 6b to feed the raw water.
Since the water is returned and used , tap water or natural water from rivers and lakes can be more easily obtained as ozone water, the electrolyte can be removed once, the desired electrolyte can be dissolved in the desired amount, and the ozone water can be operated stably. It is possible to provide a manufacturing apparatus.

The invention according to claim 6 is characterized in that the inlet 6a of the anode jacket 4 is provided with a supply port of tap water or natural water.
The water supply pipe 12 connected to the water supply pipe 12 is connected.
On the way, the filter 11 and the downstream side of the filter 11
Exchange resin tank 13 for dissolving dissolved electrolyte placed in
And disposed on the downstream side of the ion exchange resin 13.
And an electrolyte dissolving device 14 for dissolving the electrolyte,
An inlet 6b and an outlet 7b of the cathode jacket 5 are connected.
In the middle of the connecting circulation path 9, the pump 8 and the
Rushum and magnesium are removed to dissolve neutral salts
And a water tank 10 containing raw water, and an outlet 7b is connected to an inlet 6
b. Recirculate the raw water and use the raw water repeatedly.
Therefore , it is possible to provide an ozone water production apparatus which can perform stable operation as described above and can prevent precipitation and accumulation of calcium and the like on the cathode electrode 3.

Further, in the invention of claim 7 , since any one of sodium chloride, potassium chloride and sodium sulfate is used for the neutral salt and the electrolyte, an ozone water having a low acidic ozone attenuation rate can be obtained. An ozone water producing apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing a main part of an embodiment of an ozone water producing apparatus according to the present invention.

FIG. 2 is a vertical sectional view showing a main part of another embodiment of the ozone water producing apparatus of the present invention.

FIG. 3 is a vertical sectional view of a main part showing still another embodiment of the ozone water producing apparatus of the present invention.

FIG. 4 is a partial plan view of a lath net used in the present invention.

FIG. 5 is a rear view with one jacket removed.

FIG. 6 is a rear view of another embodiment with one jacket removed.

FIG. 7 is an operation explanatory sectional view schematically showing an electrolysis generation step of the present invention.

FIG. 8 is an operation explanatory sectional view schematically showing still another embodiment of the electrolysis generation step of the present invention.

FIG. 9 is an operation explanatory sectional view schematically showing a conventional electrolysis generation step.

FIG. 10 is an enlarged sectional view of a main part for explaining the flow of water according to the present invention.

FIG. 11 is a sectional view of an example of a conventional apparatus for generating gas phase ozone by an electrolytic method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solid electrolyte membrane 2 Anode electrode 3 Cathode electrode 4 Anode jacket 5 Cathode jacket 6a Inflow 15 Lath net 10 Jacket 11 Water inlet 12 Ozone water outlet 20 Jacket 21 Water inlet 22 Water outlet

Continued on the front page (72) Inventor Kazuo Kurihara 2570-4 Shimotsuruma, Yamato-shi, Kanagawa Prefecture Nishimatsu Construction Co., Ltd. (72) Inventor Yasuyuki Takagi 2-3-1 Niihama, Niimachi, Takasago-shi, Hyogo Kobe Co., Ltd. (56) References JP-A-3-267389 (JP, A) JP-A-4-119903 (JP, A) JP-A-4-311585 (JP, A) JP-A-2-30783 ( JP, A) JP-A-2-141593 (JP, A) JP-A-5-140782 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C25B 1/00-15/08 C01B 13/10

Claims (7)

(57) [Claims] An anode electrode (2) made of a wire mesh formed by weaving a wire made of a noble metal having an ozone generation catalytic function on one surface of a solid electrolyte membrane (1), and a cathode electrode (2) made of a wire mesh on the other surface. 3) are pressed against each other, and a lath net (15) formed by stretching a metal plate provided with a large number of slits so as to form a mesh on the anode electrode (2) is superimposed on the anode electrode (2 ). The mesh is large and the above anode electrode
The mesh of (2) is small, and the anode electrode (2) and the lath net (15) are horizontal.
An anode jacket (4) covering the anode electrode (2) is provided on the anode (2) side and the cathode (3) side of the solid electrolyte membrane (1) in the cutting direction and the plane direction. ) And a cathode jacket (5) covering the cathode electrode (3)
The anode jacket (4) and the cathode jacket (5) have inlets (6a, 6a, 5b) through which raw water flows through the anode jacket (4) and the cathode jacket (5). 6b) and an outlet (7a, 7b), respectively. A pump (8) is provided in the middle of a circulation path (9) connecting the inlet (6b) and the outlet (7b) of the cathode jacket (5). A raw water tank (10) in which an electrolyte having a high conductivity is dissolved, and an outlet (7b) through an inlet (6).
An ozone water producing apparatus in which raw water is circulated through b) so that the raw water is repeatedly used, and a DC voltage is applied between the anode electrode (2) and the cathode electrode (3). 2. An anode electrode (2) composed of a wire mesh formed by weaving a noble metal wire having a catalytic function for ozone generation on one surface of a solid electrolyte membrane (1) and a cathode electrode (2) composed of a wire mesh on the other surface. 3) are pressed against each other, and a lath net (15) formed by stretching a metal plate provided with a large number of slits so as to form a mesh on the anode electrode (2) is superimposed on the anode electrode (2 ). The mesh is large and the above anode electrode
The mesh of (2) is small, and the anode electrode (2) and the lath net (15) are horizontal.
An anode jacket (4) covering the anode electrode (2) is provided on the anode (2) side and the cathode (3) side of the solid electrolyte membrane (1) in the cutting direction and the plane direction. ) And a cathode jacket (5) covering the cathode electrode (3)
The anode jacket (4) and the cathode jacket (5) have inlets (6a, 6a, 5b) through which raw water flows through the anode jacket (4) and the cathode jacket (5). 6b) and an outlet (7a, 7b), respectively. A pump (8) is provided in the middle of a circulation path (9) connecting the inlet (6b) and the outlet (7b) of the cathode jacket (5). A water tank (10) for removing the calcium and magnesium dissolved in water and dissolving the neutral salt therein, and circulating the raw water from the outlet (7b) to the inlet (6b) to circulate the raw material; An ozone water producing apparatus in which water is repeatedly used and a DC voltage is applied between the anode electrode (2) and the cathode electrode (3). 3. An anode electrode (2) composed of a wire mesh formed by weaving a noble metal wire having a catalytic function for ozone generation on one surface of a solid electrolyte membrane (1) and a cathode electrode (2) composed of a wire mesh on the other surface. 3) are pressed against each other, and a lath net (15) formed by stretching a metal plate provided with a large number of slits so as to form a mesh on the anode electrode (2) is superimposed on the anode electrode (2 ). The mesh is large and the above anode electrode
The mesh of (2) is small, and the anode electrode (2) and the lath net (15) are horizontal.
An anode jacket (4) covering the anode electrode (2) is provided on the anode (2) side and the cathode (3) side of the solid electrolyte membrane (1) in the cutting direction and the plane direction. ) And a cathode jacket (5) covering the cathode electrode (3)
The anode jacket (4) and the cathode jacket (5) have inlets (6a, 6a, 5b) through which raw water flows through the anode jacket (4) and the cathode jacket (5). 6b) and outlets (7a, 7b), respectively, and a water supply pipe (12) connected to a tap water or natural water supply port is connected to the inlet (6a) of the anode jacket (4). And a filter (11) in the middle of the water supply pipe (12).
A raw material in which a pump (8) and an electrolyte having high conductivity are dissolved in the middle of a circulation path (9) connecting the inlet (6b) and the outlet (7b) of the cathode jacket (5). A water tank (10) for water, and an outlet (7b) through an inlet (6).
An ozone water producing apparatus in which raw water is circulated through b) so that the raw water is repeatedly used, and a DC voltage is applied between the anode electrode (2) and the cathode electrode (3). 4. An anode electrode (2) composed of a wire mesh formed by weaving a noble metal wire having a catalytic function for ozone generation on one surface of a solid electrolyte membrane (1) and a cathode electrode (2) composed of a wire mesh on the other surface. 3) are pressed against each other, and a lath net (15) formed by stretching a metal plate provided with a large number of slits so as to form a mesh on the anode electrode (2) is superimposed on the anode electrode (2 ). The mesh is large and the above anode electrode
The mesh of (2) is small, and the anode electrode (2) and the lath net (15) are horizontal.
An anode jacket (4) covering the anode electrode (2) is provided on the anode (2) side and the cathode (3) side of the solid electrolyte membrane (1) in the cutting direction and the plane direction. ) And a cathode jacket (5) covering the cathode electrode (3)
The anode jacket (4) and the cathode jacket (5) have inlets (6a, 6a, 5b) through which raw water flows through the anode jacket (4) and the cathode jacket (5). 6b) and outlets (7a, 7b), respectively, and a water supply pipe (12) connected to a tap water or natural water supply port is connected to the inlet (6a) of the anode jacket (4). An ion exchange resin tank (13) for removing dissolved electrolyte is provided in the middle of the water supply pipe (12), and an outlet (7b) is provided.
An ozone water producing apparatus comprising circulating raw water to an inflow port (6b) to reuse the raw water, and applying a DC voltage between the anode electrode (2) and the cathode electrode (3). 5. An anode electrode (2) composed of a wire mesh formed by weaving a noble metal wire having a catalytic function for ozone generation on one surface of a solid electrolyte membrane (1) and a cathode electrode (2) composed of a wire mesh on the other surface. 3) are pressed against each other, and a lath net (15) formed by stretching a metal plate provided with a large number of slits so as to form a mesh on the anode electrode (2) is superimposed on the anode electrode (2 ). The mesh is large and the above anode electrode
The mesh of (2) is small, and the anode electrode (2) and the lath net (15) are horizontal.
An anode jacket (4) covering the anode electrode (2) is provided on the anode (2) side and the cathode (3) side of the solid electrolyte membrane (1) in the cutting direction and the plane direction. ) And a cathode jacket (5) covering the cathode electrode (3)
The anode jacket (4) and the cathode jacket (5) have inlets (6a, 6a, 5b) through which raw water flows through the anode jacket (4) and the cathode jacket (5). 6b) and outlets (7a, 7b), respectively, and a water supply pipe (12) connected to a tap water or natural water supply port is connected to the inlet (6a) of the anode jacket (4). In the middle of the water supply pipe (12), a filter (1
1), an ion exchange resin tank (13) disposed downstream of the filter (11) for removing a dissolved electrolyte, and disposed downstream of the ion exchange resin (13) to dissolve the electrolyte. An electrolyte dissolving device (14), a pump (8) and an electrolyte having a high conductivity in the middle of a circulation path (9) connecting the inlet (6b) and the outlet (7b) of the cathode jacket (5). And a water tank (10) in which the raw material water is dissolved. The outlet (7b) is connected to the inlet (6).
An ozone water producing apparatus in which raw water is circulated through b) so that the raw water is repeatedly used, and a DC voltage is applied between the anode electrode (2) and the cathode electrode (3). 6. An anode electrode (2) composed of a wire mesh formed by weaving a noble metal wire having a catalytic function for ozone generation on one surface of a solid electrolyte membrane (1) and a cathode electrode (2) composed of a wire mesh on the other surface. 3) are pressed against each other, and a lath net (15) formed by stretching a metal plate provided with a large number of slits so as to form a mesh on the anode electrode (2) is superimposed on the anode electrode (2 ). The mesh is large and the above anode electrode
The mesh of (2) is small, and the anode electrode (2) and the lath net (15) are horizontal.
An anode jacket (4) covering the anode electrode (2) is provided on the anode (2) side and the cathode (3) side of the solid electrolyte membrane (1) in the cutting direction and the plane direction. ) And a cathode jacket (5) covering the cathode electrode (3)
The anode jacket (4) and the cathode jacket (5) have inlets (6a, 6a, 5b) through which raw water flows through the anode jacket (4) and the cathode jacket (5). 6b) and outlets (7a, 7b), respectively, and a water supply pipe (12) connected to a tap water or natural water supply port is connected to the inlet (6a) of the anode jacket (4). In the middle of the water supply pipe (12), a filter (1
1), an ion exchange resin tank (13) disposed downstream of the filter (11) for removing a dissolved electrolyte, and disposed downstream of the ion exchange resin (13) to dissolve the electrolyte. An electrolyte dissolving device (14), which is dissolved in a pump (8) and water in the middle of a circulation path (9) connecting the inlet (6b) and the outlet (7b) of the cathode jacket (5). A raw water tank (10) in which neutral salts are dissolved by removing calcium and magnesium therein, and the raw water is circulated from the outlet (7b) to the inlet (6b) to repeatedly use the raw water. An ozone water producing apparatus, wherein a DC voltage is applied between the anode electrode (2) and the cathode electrode (3). 7. The ozone water producing apparatus according to claim 1, wherein the neutral salt or the electrolyte is any one of sodium chloride, potassium chloride and sodium sulfate.