JPH0372995A - Ozone water manufacturing device - Google Patents

Abstract

PURPOSE:To prevent a device from getting larger and becoming expensive by constituting integrally a Venturi tubular induction component to which high frequency and high voltage can be applied and an ozonizer between a linear corona discharge electrode on the outer peripheral surface and an induction electrode on the inner layer. CONSTITUTION:A linear corona discharge electrode 2 disposed on the outer periphery of a Venturi tubular injector 1 through an induction layer 15 and a surface-shaped induction electrode 3 disposed facing the inside of the induction layer 15 are connected with a high frequency and high voltage power source 7. Further, a closed creeping discharge space 5 with its outer cylinder 4 provided concentrically formed on the outside of the corona discharge electrode 2 and raw material gas is fed from one end of the discharge space 5 and ozonized, which can be fed to a gas suction opening 1e of a throat section 1d of the injector 1 through an ozone gas tube 11 on the other end. Ozone gas is sucked and diffused into water stream in the Venturi tube when the water fed from one end 8 of the injector 1 passes through the throat section 1d by said constitution, and can be flowed out of an outlet 9 on the other end as ozone water 23.

Description

Detailed Description of the Invention [Industrial Application Field] This invention relates to ozone-containing water (
The present invention relates to an apparatus for producing ozone water (hereinafter referred to as ozonated water).

BACKGROUND OF THE INVENTION An ozonizer used in this type of device has a corona discharge electrode on the inner peripheral surface of a cylindrical dielectric, an insulating end plate at both ends of the cylindrical dielectric, and one end plate of the cylindrical dielectric. A source gas supply port is formed on one side, and an ozonized gas discharge port is formed on the other side, and a cylindrical induction electrode is buried concentrically within the thickness of the cylindrical dielectric, and the same cylindrical M8 is buried in the body. A water jacket is provided on the outer circumferential surface of the cylindrical dielectric body with a space between the two poles, and a high-frequency high-voltage power source is connected between the two poles to apply a high voltage to generate a creeping discharge on the inner circumferential surface of the cylindrical dielectric body. The raw material gas such as oxygen gas or air supplied from the raw material gas supply port is converted into ozone gas and discharged from the ozone gas discharge port, and this ozone gas is sent to the negative side of a venturi tube-shaped injector that is provided separately. Ozone water is produced by sending it into a pressure section and mixing it with the water flowing through it.

Therefore, such an ozonated water production device requires an ozonizer which is formed by providing a linear discharge electrode on the inner surface of a cylindrical dielectric material and an induction electrode embedded within the thickness of the dielectric material, and a separate ozonizer. Since a Venturi tubular injector for flowing water must be provided, the overall device becomes large and
It is difficult to avoid high costs.

[Problem to be Solved] This invention attempts to solve the above-mentioned problems in the conventional ozonated water production apparatus, and it is an object of the present invention to solve the above-mentioned problems in the conventional ozonated water production apparatus. The purpose is to prevent increase in size and associated cost increase.

Another purpose is to effectively cool down the heat generating part of the ozonizer.
The goal is to improve ozone generation efficiency.

[Means for Solving the Problems] The ozone water production device of the present invention provides a linear corona discharge electrode on the outer circumferential surface of the injector via a dielectric layer made of high-purity alumina porcelain, glass, etc. A planar induction electrode is provided inside the dielectric layer at a portion facing the linear corona discharge electrode so as to cover the entire portion, and an outer cylinder is provided concentrically on the outside of the corona discharge electrode for sealing. A high-frequency, high-voltage power source is connected between the induction electrode and the corona discharge electrode, a water inlet is provided at one end of the injector, and an ozone water outlet is provided at the other end. A raw material gas supply pipe and an ozone gas pipe are provided in the creeping discharge space, and the creeping discharge space and the throat of the injector are communicated through the ozone gas pipe and a check valve.

An injector is a general device that has a throat part with a narrowed flow path in the middle of a water pipe, creating negative pressure in the throat part, sucking gas into that part, and dispersing and absorbing it in the water. tlIr!, a right cylinder with the above-mentioned throat section in the middle, a cone-shaped throat section on both sides or one side, etc. i is arbitrary. Further, the corona discharge electrode may be provided over the entire outside of the injector, or may be provided only on a portion of the injector. The dielectric layer may be provided separately on the outer peripheral surface of the injector, but the injector itself may also be formed of high-purity alumina porcelain or the like and serve as the dielectric layer. It may be provided on the inner surface of the dielectric layer, or it may be provided within the thickness of the dielectric layer.

[Operation] A high frequency high voltage is applied between the linear corona discharge electrode provided on the outer circumferential surface of the dielectric injector and the induction electrode provided inside it via the dielectric layer using a high frequency high voltage power source. A creeping discharge is generated on the surface of the dielectric injector, and the raw material gas supplied therefrom from the raw material gas pipe provided at the end of the creeping discharge generation space is converted into ozone gas, and this is passed through the ozone gas pipe. The gas is then supplied to the gas suction port of the throat of the injector via a check valve.

At the same time, water is supplied from the inlet to the outlet of the dielectric injector, and during that time, due to the pressure drop of the water as it passes through the throat, the gas suction port provided at that part is supplied. Ozone gas is sucked into the flowing water inside the Venturi tube, dispersed into a large number of bubbles, absorbed into the water, and turned into ozone water, which is then discharged from the ozone water outlet.

At this time, the heat generated during the creeping discharge is removed by the water flowing through the dielectric injector, and the creeping discharge generation area is directly and effectively cooled without using any space, thereby preventing thermal decomposition of ozone. Therefore, ozone is effectively generated.

[Embodiment] An embodiment of the ozone water production apparatus of the present invention will be described with reference to the accompanying drawings. For example, two truncated conical cylinders 1a and lb made of a dielectric material of high-purity alumina porcelain are connected to each other at their small diameter portions 1c. A linear corona radiation tffi2 is wound in a coil shape on the outer circumferential surface of the dielectric injector 1 in the form of a venturi tube, and this part is made into a throat part 1d. A planar induction electrode 3 is provided within the thickness of the wall 14 at a portion opposite to the corona discharge 1f12 with an interval of about 0.5 cm. An outer cylinder 4 is provided outside the corona discharge electrode 2 concentrically with the dielectric injector 1 to form a sealed creeping discharge space 5.

Also, the induction electrode 3 and linear corona discharge! Electric wire 6 between 2 and
A and a high-frequency high-voltage power source 7 are connected with electric wires 6b, and a water inlet 8 is connected to one end of the Venturi tubular dielectric injector 1.
and an ozone water outlet 9 at the other end, and a raw material gas supply pipe 10 is connected to one end of the sealed surface discharge space 5, and an inlet 11a of an ozone gas pipe 11 is connected to the other end of the ozone gas pipe. 11 is made to face the suction port 1e of the throat section 1d of the dielectric injector 1 in the form of a venturi tube.

Further, a water pipe 12 is provided at the water inlet 8 at one end of the injector 1, and an ozone water pipe 13 is provided at the ozone water outlet 9 at the other end.

When producing ozone water using the apparatus of this embodiment, a linear corona radiation tBi3, which is wound in a coil shape in this embodiment, on the outer peripheral surface of the dielectric injector 1, and its j Shuden r This injector 1! A high frequency high voltage is applied between the induction electrodes 1 provided through a dielectric layer 15 within a wall thickness of 14 using a high frequency high voltage power source 7 to generate a creeping discharge on the outer surface 16 of the dielectric ejector 1. 17 is generated, a raw material gas 18 is supplied to the creeping discharge generation space 5 from the raw material gas supply pipe 10 provided at the end thereof, it is converted into ozone gas, and this ozone gas 19 is supplied to the ozone gas pipe 1.
1 and check valve 20, and is supplied to the suction port 1e of the throat 1d of the Venturi tubular dielectric injector 1.

At the same time, water is supplied from the water inlet 8 of the Venturi tubular dielectric injector to the throat 1d via the water pipe 12, and the pressure of the water decreases as it passes through the throat 1d. The ozone gas 18 is sucked into the flowing water 21 inside the venturi tubular dielectric injector 1 from the suction port 1e provided in the section, and a large number of bubbles 22 are generated.
The ozone water is dispersed and absorbed into water to make ozone water 23, which is discharged from the ozone water outlet 9 of the injector l toward the ozone water pipe 13, and is used for the various purposes mentioned above. be.

At this time, the heat generated during the creeping discharge 17 is transferred to the wall 14 of the dielectric injector 1 without passing through the gas space of the generation part of the creeping discharge 17 by the running water 21 and ozone water 23 flowing inside the injector 1. Since it is cooled by solid heat conduction, the cooling effect is significant and the temperature of the creeping discharge portion does not rise, making it possible to discharge ozone gas extremely efficiently.

Although the embodiments of the present invention have been described above with reference to FIGS. 1 and 2, the present invention is not limited thereto, and may be implemented by adding or changing some of the eleven features without changing the spirit of the present invention. It is possible to do so. For example, the first (2I,
In FIG. 2, the venturi tubular injector 1 itself is made of a dielectric material such as high-purity alumina porcelain, but instead, as shown in FIG. It is divided into two parts at IC, and the conical parts 1f and 1g are separated to the left and right, and two truncated cone-shaped dielectrics 24a and 24b are fitted thereto, and the small diameter part 1c is The conical dielectric bodies 24a, 24. A linear corona discharge pole 2.2' is provided on the outer peripheral surface of b, and an induction type 111i3.3' is provided within the thickness of 24a and 24b, and the corona discharge electrode 2.2' is connected to the induction electrode 2.2'. 3.3゛ respectively conductor 26a
, 26b and 27a, 27b to connect the conductor 6a.
, 6b, or, although not shown, the ozone gas pipe 11 and check valve 17 may be provided in the creeping discharge space 5 inside the outer cylinder 4 instead of being provided outside the outer cylinder 4. Furthermore, without providing any ozone gas pipe 11, the creeping discharge space 5 is directly connected to the suction port 1e of the throat 1d.
You can also communicate with In this case, the ozone gas 19 in the creeping discharge space 5 is sucked into the flowing water 21 due to the low pressure of the flowing water 21 flowing through the throat 1d, and the ozone water 23
is manufactured.

Further, in FIG. 3, the induction pole 3.3' is omitted, and the outer peripheral surface of the metal injector 1 is connected to the conductor 27b,
This may be used as an induction electrode, and depending on the case, the corona emission t% of the induction electrode 3 or 3'' as shown in Figures 1 and 3.
Place a suitable heating resistor for the heater between 2° and 2°.
A heating power source may be provided to heat the corona discharge electrode to prevent a decrease in ozone generation due to temperature rise, or it may be buried within the thickness of the dielectric material. good.

In FIG. 3, the parts having the same reference numerals as those in the above-described embodiment have the same names and functions.

[Effect] The present invention is as described above, and includes a linear corona radiation pole that is wound around the outer peripheral surface of a dielectric material in a coil shape, and an induction electrode that is provided through the dielectric layer. During this period, a high frequency and high voltage can be applied by a high frequency and high voltage power supply, so a creeping discharge is generated on the surface of the dielectric, and a creeping discharge is generated there from the source gas pipe provided at the end of the creeping discharge generation space. The supplied raw material gas can be turned into ozone gas, which can be supplied to the suction port in the throat of the Venturi tubular injector via the ozone gas pipe and check valve.

In addition, water is supplied from the inlet of the Venturi tubular injector to its outlet, and during that time, due to the pressure drop of the water as it passes through the throat, ozone gas is drawn into the injector from the suction port provided at that part. The ozone water can be sucked into running water, dispersed into a large number of bubbles, and absorbed into the water to become ozonated water, which can then be discharged from the ozonated water outlet.

Therefore, it is possible to prevent an increase in the size of the apparatus and an associated increase in costs due to the provision of both an ozonizer and an injector separately, as in the conventional ozone water production apparatus.

At this time, the heat generated during the creeping discharge is transferred to the venturi tubular injector by solid heat conduction through the dielectric wall of the venturi tubular injector, without passing through the gas space of the creeping discharge generation part, by the flowing water flowing inside the venturi tubular injector. Since it is cooled, thermal decomposition of the ozone gas once generated is prevented, and overall the generation efficiency is extremely good.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the ozonated water production apparatus of the present invention, FIG. 2 is a front view of a portion of FIG. It is a longitudinal cross-sectional view of a part. 1... Dielectric injector 2... Linear corona discharge electrode 3... Induction electrode 4... Outer cylinder 5... Creeping discharge space 7... High frequency high voltage power source 8... Water inlet 9.・・Ozone water outlet 0 1 2 3 7 0 ・Raw material gas supply pipe Ozone gas pipe ・Water pipe ・Ozone water pipe ・Surface discharge ・Check valve

Claims (1)

[Claims] 1. A linear corona discharge electrode is provided on the outside of the venturi tubular injector via a dielectric layer, and a linear corona discharge electrode is provided inside the dielectric so as to cover the area facing the corona discharge electrode. A shaped induction electrode is provided, an outer cylinder is provided concentrically outside the corona discharge electrode to form a sealed creeping discharge space, and a high frequency and high voltage power source is connected between the venturi tubular injector and the corona discharge electrode. , a water inlet is provided at one end of the venturi tubular injector, and an ozone water outlet is provided at the other end, and a raw material gas supply pipe is provided in the sealed creeping discharge space, and the creeping discharge space and the venturi tubular induction electrode are provided. Ozonated water production device 2 characterized in that the Venturi tubular injector is made of a dielectric material, and at least a part of the wall made of the dielectric material also serves as a layer of the dielectric material. An ozonated water production apparatus according to claim 1, which is characterized by: 3. The ozone water production device according to claim 1 or 2, wherein the venturi tubular injector is divided into two parts at its throat, and these parts are connected to each other by a connecting pipe. . 4. The ozonated water according to any one of claims 1 to 3, wherein the sealed creeping discharge space and the throat of the venturi tubular injector are connected by an ozone gas pipe via a check valve. 5. The ozone water manufacturing device according to claim 1, wherein the corona discharge electrode provided on the outer peripheral surface of the dielectric is wound in a coil shape. 6. According to any one of claims 1 to 5, wherein the dielectric body is formed of two conical cylindrical dielectric bodies, and these are fitted on the outside of the venturi tubular injector. The ozone water production device 7 as described above, the ozone water production device 8 according to any one of claims 1 to 6, characterized in that an induction electrode is embedded within the thickness of the dielectric layer, and the dielectric layer. 1. An ozone water production apparatus characterized in that the apparatus has a heater heating resistor on the side opposite to the corona discharge electrode with respect to the induction electrode, and has a heating power source for heating the resistor with electricity. 9. An ozone water production device characterized in that the heating resistor is embedded within the thickness of the dielectric.