JP2002068713A - Ozone generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ozone generator which is small-sized and high in workability for making the same. SOLUTION: In the ozone generator, a discharge tube for generating ozone, wherein ozone is generated by an oscillation power of a high frequency oscillation circuit, is constituted such that the two valves equipped with the electrodes, which are sealed up at the one side end, are placed by leaving a space between them so as to run parallel and connected at the another side end where the electrodes are not sealed. A special mechanism to keep the space between the two valves is not necessary, and thereby, workability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone generator using gas plasma discharge, and more particularly to an ozone generator using a discharge tube.

[0002]

2. Description of the Related Art As a conventional ozone generator, as shown in FIG. 4, a power source 1 is provided by providing an insulating spacer 16 and metal electrodes 14 and 15 at appropriate intervals. A high-frequency voltage of the high-frequency oscillation circuit 13 that oscillates is applied to the electrodes, and as shown in FIG. Another conventional apparatus in which two discharge tubes are arranged in parallel to generate ozone in a gap between the discharge tubes is disclosed in Japanese Patent No. 264497.
No. 3 publication. Although not particularly shown, a discharge tube provided by sealing an electrode only at one end of a glass tube sealed at both ends and filled with a gas inside, and the electrode position is reversed. Ozone is generated in a gap between the two discharge tubes by applying a high voltage to the two discharge tubes through electrodes through electrodes.

[0003]

The above-mentioned ozone generating apparatus generates ozone by generating plasma vertically by a streamer discharge having a nearly planar shape to dissociate oxygen, and the ozone generating portion has a shape. However, there is a problem that the size is increased.

[0004] On the other hand, the latter ozone generator is not a planar discharge, but generates ozone by previously forming two discharge tubes and disposing them in opposition to each other. In order to arrange the tubes in a substantially parallel manner with a gap, it is necessary to maintain the mounting position of the two discharge tubes. For this purpose, a fixing mechanism for defining the gap and holding the gap is required. There is a problem that the size of the mounting portion is increased and work for the mounting is required, resulting in a lack of workability.

The present invention has been made in order to solve these problems, and provides an ozone generating apparatus which does not require a mechanism for maintaining a gap between discharge tubes, does not increase the size of the apparatus, and has high workability. The purpose is to do.

[0006]

In order to achieve the object of the present invention, a discharge for ozone generation is provided by connecting two bulbs for sealing electrodes only on one side and sealing ends where electrodes are not sealed. With a tube.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to an ozone system in which first and second valves each having an electrode provided only on one side are connected at the other end where these electrodes are not provided. A discharge tube for generation is provided, which does not require a mechanism for maintaining the first and second glass bulbs, does not increase the size of the ozone generation unit, and maintains a gap. It is not necessary to perform the work of providing the work, and the workability can be improved.

According to a second aspect of the present invention, the first and second glass bulbs are formed by bending a discharge tube having electrodes sealed at both ends of the glass bulb near the center of the glass bulb. It is not necessary to provide a maintenance mechanism between the first and second glass bulbs.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 is a schematic view of an ozone generating apparatus according to an embodiment of the present invention. Reference numeral 1 denotes a power supply, 2 denotes a high-frequency oscillation circuit that is supplied with power and oscillates a high-frequency voltage, and 3 denotes an ozone generation discharge tube. It is. The ozone generating discharge tube 3 has an independent bulb 7 as well as an independent bulb 6 formed by processing a glass bulb 4, and the electrode 5 is sealed at an end of the bulb 6. An electrode 8 is sealed at an end of the valve 7. Each of the valves 6 and 7 has a required amount of a suitable rare gas such as xenon, krypton, argon, or neon sealed therein. The other sealed ends of the bulbs 6 and 7 where the electrodes are not sealed are connected by glass of the same material as the bulb.

In the ozone generator having the above configuration, when the power supply 1 is supplied and a high-frequency voltage is supplied from the high-frequency oscillation circuit 2 to the electrodes 5 and 8, a discharge occurs between the bulbs 6 and 7 and the discharge of the bulbs occurs. The surrounding electric field is excited, and as shown in the enlarged sectional view of the ozone generating discharge tube in FIG. 2, oxygen passing between the bulbs 6 and 7 is ozonized to generate ozone.

As shown in FIG. 3, the discharge tube 3 for generating ozone has electrodes 5 and 8 sealed at both ends of a glass bulb 4 and the inside of the glass bulb 4 is filled with the above-mentioned rare gas to form a discharge vessel 3 at both ends. First, a discharge tube in which the electrodes 5 and 8 are sealed is prepared. Thereafter, the vicinity of 10 and 12 of the glass bulb 4 is melted by, for example, a gas burner to separate the bulbs 6 and 7 respectively.
To form Then, around the center of the glass bulb 4 10
Is melted by a gas burner and bent, and the valve 6
When a gap is provided between the valve and the valve 7 and the valve is machined into a shape as shown in FIG. Alternatively, as another method, two electrodes of one-sided electrodes in which the electrodes are sealed in advance only on one side and a rare gas is sealed therein are prepared in advance, and the sealed ends of the electrodes of the discharge tubes are not sealed. Two discharge tubes may be connected so that they are melted and provided with a gap between the discharge tubes so as to be substantially parallel.

Since the ozone generating discharge tube manufactured in this manner is a glass tube, once formed as shown in FIG. 1, the gap between the bulbs 6 and 7 is fixed. Yes, there is no need for a mechanism to keep the gap in use.

As a matter of course, since the holding mechanism is not required, the mounting portion of the discharge tube does not increase in size and the workability can be improved.

[0015]

As described above, the ozone generator of the present invention can provide a device which can be downsized and has excellent workability without increasing the size of the ozone generating portion.

[Brief description of the drawings]

FIG. 1 is a schematic view of a partial cross section of an ozone generator according to an embodiment of the present invention.

2 is an enlarged sectional view of the discharge tube for generating ozone according to the embodiment of FIG.

FIG. 3 is a sectional view showing one process of manufacturing the ozone generating discharge tube according to the embodiment of FIG. 1;

FIG. 4 is a schematic diagram of a conventional ozone generator.

FIG. 5 is a schematic view of an ozone generating state of the ozone generating apparatus according to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power supply 2 High frequency oscillation circuit 3 Discharge tube for ozone generation 6, 7 Valve 5, 8 Electrode 9 Gap

Claims (2)

[Claims] A power supply; a high-frequency oscillation circuit for generating a high-frequency voltage when the power is supplied; a first glass bulb and a second glass bulb; An ozone generating discharge tube for generating ozone between the first and second glass bulbs, wherein the ozone generating discharge tube is provided at one end of the first glass bulb and connected to the high frequency oscillation circuit; A first electrode, a second electrode provided on the second glass bulb and connected to the high-frequency oscillation circuit, and the first glass bulb and the second glass bulb being connected to the first electrode and the second glass bulb. Second
An ozone generator connected at the other end of the first and second glass bulbs without the electrode. 2. A discharge tube for ozone generation, comprising a first bulb and a second bulb sealed at both ends of a glass bulb, the glass bulb being bent near its center, and a rare gas sealed in the glass bulb. The ozone generator according to claim 1, wherein the tube is separated into a first glass bulb provided with a first electrode and a second glass bulb provided with a second electrode.