JP2526706Y2 - Ozonizer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the shape of an electrode for an ozonizer (ozone generator).

[0002]

2. Description of the Related Art FIG. 10 is a sectional view of a conventional ozonizer, and FIG. 11 is a plan view of the same. An ozonizer 100 has a discharge electrode 102 and an induction electrode 103 opposed to each other via a dielectric material 101 such as glass or ceramics. A creeping discharge C is generated around the discharge electrode 102 by applying an AC voltage. 104 is an AC high voltage power supply.

[0003] As shown in FIG.
Has a relatively narrow band shape, and the induction electrode 103 has a wide band shape.

[0004]

As shown in FIG. 11, the corners 105, 10 at the tip of the discharge electrode 102 are used.
5 has an angle of about 90 °, so that these corners 1
It was recognized that the discharge density at 05 and 105 was abnormally high as compared with the other linear portions. As a result, it was found that the electrode was significantly worn by the discharge at the corner portions 105, 105 as compared with the other linear portions, and the amount of ozone generated changed over time.

[0005] The ozonizer is for generating a desired substantially constant amount of ozone, and it is extremely undesirable that the amount of generated ozone changes with time from the viewpoint of equipment maintenance.

Accordingly, an object of the present invention is to provide a discharge electrode which suppresses a change in the amount of generated ozone with time.

[0007]

An ozonizer in which a discharge electrode is opposed to an induction electrode via a dielectric is characterized in that the discharge electrode has a flat plate shape and its corner portion is a round corner portion. And

Alternatively, the discharge electrode has a length protruding from the induction electrode.

[0009]

When the corner of the discharge electrode is a round corner, the concentration of the discharge can be reduced.

If the discharge electrode protrudes sufficiently from the induction electrode, the corner portion thereof is not subjected to creeping discharge, so that the discharge density becomes substantially uniform.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of an ozonizer according to the present invention, and its cross-sectional view is the same as that of FIG.

The ozonizer 1 comprises a dielectric 2, an induction electrode 3 and a discharge electrode 4 similar to those described in the section of the prior art. The discharge electrode 4 has rounded corners 5 and 5 at the tip. There is a characteristic that there is.

As for the size of the round corner, it is most convenient to set the half of the width of the discharge electrode to the R size in order to reduce the concentration of discharge.

The operation of the ozonizer having the above configuration will be described. In FIG. 1, when a high voltage is applied from the AC high-voltage power supply 6, a surface discharge C is generated on the discharge electrode 4, and the discharge energy causes oxygen in the air to be generated. Is converted to ozone.

At this time, since the corner portions are round corner portions 5 and 5, the discharge density at these round corner portions 5 and 5 is not so large as compared with other linear portions, and thus the discharge electrode 4 has Local wear can be prevented.

FIG. 2 is a sectional view of another embodiment of FIG. 1, and FIG. 3 is a sectional view of the same. The ozonizer 11 is called a twin electrode type, and as shown in FIG. And the discharge electrode 14 is attached to the upper surface of the dielectric 12.
Ozone is generated by the creeping discharges C, C according to No. 4 (see FIG. 2).

As shown in FIG. 2, all four corners of the discharge electrode 14 are rounded corners 15 so as to suppress concentration of discharge.

FIG. 4 is a diagram showing a modified embodiment of FIG. 2, in which two induction electrodes 17, 17 are arranged on the same surface, and a discharge electrode 18 is stretched over them.
Are sufficiently long, and both ends thereof are inductive electrodes 17, 17 in plan view.
As a result, the corner portions 19 of the discharge electrode are not opposed to the induction electrodes 17.

When the AC high-voltage power supply 20 is actuated, creeping discharges C are generated. However, since the corner portions 19 are far from the discharge area, they are not subject to local wear.

FIG. 5 is a view showing another embodiment of FIG. 4. The sectional structure is almost the same as that of FIG. 1, but the discharge electrode 21 is sufficiently long, and the corners 22, 22 thereof do not face the induction electrode 23. It is characterized by being.

FIG. 6 is a modified embodiment of FIG. 1, and FIG. 7 is a sectional view of FIG. That is, the ozonizer 31 includes the same dielectric 2, the induction electrode 3, the discharge electrode 4, and the protective layer 32 covering the discharge electrode 4 as described with reference to FIG. This protective layer 32 is made of an insulator such as glass or ceramic. Creepage discharge occurs via the protective layer 32. Therefore, the discharge electrode 4 of this embodiment has durability even in a chlorine atmosphere, for example.

FIG. 8 is a modified embodiment of FIG. 4, and FIG. 9 is a sectional view of FIG. That is, the ozonizer 41 includes the same dielectric 12, the induction electrode 17, the discharge electrode 18, and the protective layer 42 covering the discharge electrode 18 as described with reference to FIG. This protective layer 42 is made of an insulating material such as glass or ceramic. Creepage discharge occurs via the protective layer 42.
Therefore, also in this embodiment, the discharge electrode 18 has durability even in a chlorine atmosphere, for example.

[0024]

[Effects of the Invention] As described above, in the present invention, the discharge electrode is made to have a rounded corner, thereby averaging the discharge density, thereby stabilizing the amount of ozone generated, and using it for a long time. Can endure.

Alternatively, by projecting the discharge electrode from the induction electrode and removing its corner from the discharge region, the amount of generated ozone can be similarly stabilized.

[Brief description of the drawings]

FIG. 1 is a plan view of an ozonizer according to the present invention.

FIG. 2 is a view showing another embodiment of FIG. 1;

FIG. 3 is a sectional view of another embodiment of FIG. 1;

FIG. 4 is a diagram showing a modified embodiment of FIG. 2;

FIG. 5 is a view showing another embodiment of FIG. 4;

FIG. 6 is a diagram showing a modified embodiment of FIG. 1;

FIG. 7 is a sectional view of FIG. 6;

FIG. 8 is a diagram showing a modified example of FIG. 4;

FIG. 9 is a sectional view of FIG. 8;

FIG. 10 is a sectional view of a conventional ozonizer.

FIG. 11 is a plan view of a conventional ozonizer.

[Explanation of symbols]

1, 11, 31, 41: Ozonizer, 2, 12: Dielectric, 3, 13, 17, 23: Induction electrode, 4, 7, 14,
18, 21 ... discharge electrodes, 5, 8, 15 ... round corners.

Claims (2)

(57) [Scope of request for utility model registration] 1. A creeping discharge type ozonizer having a discharge electrode opposed to an induction electrode via a dielectric material, wherein the discharge electrode has a flat plate shape, and has a round corner in plan view . Ozonizer featuring 2. A creeping discharge type ozonizer having a discharge electrode opposed to an induction electrode via a dielectric, wherein the discharge electrode has a flat plate shape and has a length protruding from the induction electrode. Ozonizer.