JPH0959004A - Electrode for generation of ozone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject electrode having easily changeable shape and size and easily producible at a low cost. SOLUTION: The objective discharge electrode 4 is produced by forming an induction electrode 2 with a metal wire having oxidation resistance and flexibility, coating the circumference of the induction electrode 2 with an oxidation-resistant dielectric insulation material 3 and spirally winding a thin metal wire having oxidation resistance around the outer circumference of the dielectric insulation material 3.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an improvement in an electrode for generating ozone in the air or the like.

[0002]

2. Description of the Related Art Ozone is a gas obtained by discharging in air, has a strong oxidizing property, and is generally used for deodorization, sterilization, bleaching and the like.

Conventionally used ozone generating electrodes are
For example, it is formed by arranging a pair of oxidation-resistant induction electrode and discharge electrode on both surfaces of the ceramic plate. (See Japanese Patent Laid-Open No. 2-180703)

[0004]

Since the conventional electrode using ceramics is formed by sticking an oxidation resistant metal on a ceramic plate, it requires a high degree of specialized skill and equipment, and its shape. And it is difficult to freely change the size (length).

Further, the electrodes using conventional ceramics are
The ozone generation portion is concentrated around the discharge electrode, and when the heat dissipation effect of the electrode is poor, the ozone generation efficiency decreases.

Further, the conventional electrode using ceramic has a drawback that it is vulnerable to vibration and impact and is easily broken because the ceramic is used as a dielectric.

An object of the present invention is to solve the above problems and to provide an ozone generating electrode which can be easily changed in shape and size, is easy to manufacture, is low in cost, is robust, and is easy to handle. Is.

[0008]

In order to achieve the above object, the present invention is directed to forming an induction electrode from a metal wire material having oxidation resistance and flexibility, and surrounding the induction electrode with an oxidation resistance dielectric. A discharge electrode is formed by coating a body insulating material, and spirally winding a thin metal wire rod having a high oxidation resistance around the outer periphery of the dielectric insulating material.

[0009]

1 is an external view of an ozone generating electrode, which is an embodiment of the present invention, and FIG.
FIG. 4 is a diagram showing a cross section of an ozone generating electrode in the same manner.

As shown in FIGS. 1 and 2, the ozone generating electrode 1 is made of a metal wire having oxidation resistance and flexibility, which is used as the induction electrode 2, and is made of fluorine resin, silicon rubber or the like. The dielectric insulating material 3 is coated in a cylindrical shape with a constant thickness, and further, as shown in FIG.
The discharge electrode 4 is formed by spirally winding a thin metal wire rod such as a stainless wire, a nichrome wire, a titanium wire, or a copper wire of about 0.3 mm at a substantially constant pitch. As the induction electrode 2 and the dielectric insulating material 3, it is preferable to use a flexible high voltage insulated wire as it is.

In the example shown in FIG. 1, the ozone generating electrode 1 is formed in a U-shape. As shown in FIG. 2B, the discharge electrode 4 may be wound around the dielectric insulating material 3 so as to maintain a small gap. In this case, the thin metal wire material as the discharge electrode 4 is ,
The metal wire is spirally wound around the dielectric insulating material 3 so that the metal wire is in contact with the outer periphery of the dielectric insulating material 3 formed in a cylindrical shape. In this case, due to the presence of the gap, silent discharge (corona discharge) is likely to occur.

FIG. 3 is a view showing a cross section of a thin metal wire used as the discharge electrode 4, and thin metal wires having various cross sections such as a round shape, an oval shape, a triangle, and a quadrangle can be used as the discharge electrode 4. is there.

FIG. 4 is a diagram showing an electrical connection when ozone is generated using the ozone generating electrode 1 shown in FIG. 1, and the ground side output e of the high frequency high voltage power source 5 is connected to the induction electrode 2. At the same time, the high voltage side output h of the high frequency high voltage power supply 5 is connected to the discharge electrode 4. The high frequency high voltage power supply 5 is, for example,
By supplying an AC voltage of about 4 to 7 kV and about 15 to 20 kHz, silent discharge (corona discharge) occurs around the discharge electrode 4, and ozone is generated.

As shown in FIG. 4, by connecting the high-voltage side output h of the high-frequency high-voltage power supply 5 to both ends of the discharge electrode 4, even if the discharge electrode 4 is broken, ozone will be generated. The outbreak does not stop. Further, by connecting the low voltage, large current power source 6 for preventing dew condensation, when the ozone generating electrode 1 is used in a high humidity place, or when it is dried after cleaning, a large current is applied to the induction electrode 2 to cause ohmic Generates heat to prevent condensation and water wetting.

FIG. 5 is a diagram showing another embodiment of the present invention. In FIG. 5, the induction electrode 2 formed of a metal wire covered with a dielectric insulating material 3 is formed in a long straight line shape. ,
If a thin metal wire is spirally wound around the place where ozone is desired to be generated, the ozone generation region can be freely set.

FIG. 6 is a diagram showing another embodiment of the present invention. As shown in FIG. 6, the ozone generating electrode 1 is used.
Is formed in a U-shaped continuous shape, and the ozone-generating electrode 1 thus formed is used as a filter for a blower F (for convenience, only the blower F is shown by a chain double-dashed line in FIG. 6). By incorporating them together, the blower F can be easily used as an ozone air cleaner.

7 and 8 are diagrams showing a state in which the ozone generating electrode 1 is protected by an oxidation resistant insulating pipe 7. By doing so, the ozone generating electrode 1 is used in a room or the like. It becomes possible to install it outside as it is.

Here, in FIG. 7, an oxidation resistant insulating pipe 7 made of vinyl chloride, fluororesin, polyethylene resin or the like is used.
A large number of ventilation holes 8 are bored in the interior of the chamber, and the ozone generated from the ventilation holes 8 is evenly diffused. The air circulation device (not shown) separately installed can be used to deodorize and clean the room. it can. Further, in FIG. 8, the oxidation resistant insulating pipe 9 is hermetically sealed, and the oxidation resistant insulating pipe 9 is formed as a flow tube provided with a gas inlet 10 and an ozonized gas outlet 11. In this case, the oxidation resistant insulating pipe 9 has a role of a ventilation duct, and by extending the pipe further from the ozonized gas outlet 11, ozone can be sent to a necessary place.

[0019]

As described above, according to the present invention,
Since the discharge electrode made of a thin metal wire is wound around the dielectric insulating material covering the induction electrode made of a flexible metal wire, the shape and size can be easily changed, and it can be easily manufactured. Therefore, the cost can be reduced. Further, it is more robust and easier to handle than an electrode using a conventional ceramic.

[Brief description of drawings]

FIG. 1 is an external view of an ozone generating electrode that is an embodiment of the present invention.

FIG. 2 is a sectional view of an ozone generating electrode.

3 is a view showing a cross section of a thin metal wire used as a discharge electrode in FIG.

FIG. 4 is a diagram showing an electrical connection when ozone is generated using the ozone generating electrode shown in FIG.

FIG. 5 is a diagram showing another embodiment of the present invention.

FIG. 6 is a diagram showing another embodiment of the present invention.

FIG. 7 is a view showing a state in which an ozone generating electrode according to the present invention is protected by an insulating pipe.

FIG. 8 is a view showing a state in which an ozone generating electrode according to the present invention is protected by an insulating pipe.

[Explanation of symbols]

 1 Ozone Generation Electrode 2 Induction Electrode 3 Dielectric Insulation Material 4 Discharge Electrode 5 High Frequency High Voltage Power Supply 6 Low Voltage High Current Power Supply for Dew Condensation 7 Insulation Pipe 8 Insulation Pipe 9 Vent Hole 10 Gas Inlet 11 Ozonized Gas Outlet e Ground Side Output F Blower h High voltage side output

Claims (2)

[Claims] 1. An induction electrode is formed of a metal wire rod having oxidation resistance and flexibility, the periphery of the induction electrode is covered with an oxidation resistant dielectric insulating material, and the outer periphery of the dielectric insulating material is An electrode for ozone generation in which a discharge electrode is formed by spirally winding a thin metal wire that is resistant to oxidation. 2. The electrode for ozone generation according to claim 1, wherein a flexible high-voltage insulated wire is used as the induction electrode and the dielectric insulating material.