JPH1053403A - Creepage ozone generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an ozone generator element of improved service life by such a configuration that a net formed of Ni alloy metal wires is adhered to one face of a ceramic substrate with a resin-based adhesive, and also a Ni-based alloy foil or net is adhered to the other face of the substrate. SOLUTION: This ozone generator element comprises a ceramic substrate 2 of thickness in the order of 0.1μm-1mm, an approximately 1-5mm mesh net 3 that is formed of 0.1μm-2mm dia Ni-based alloy wires as an electrode and adhered to one face of the substrate 2 with a resin-based adhesive, and another electrode 6 that is composed of a metal net formed of Ni-based alloy wires of 0.1μm-2mm in diameter or a Ni-based alloy foil of approximately 0.01-0.2mm in thickness and adhered to the other face of the substrate 2 with the adhesive, the metal net 3 being connected to a high-voltage power source 5 with a conductor 4 and the electrode 6 being connected to the high-voltage power source 5 with a conductor 7. Thus formed surface ozone generator element 1 has service life of approximately 10 times as long as that of conventional ones when an electric current of approximately 2000-8000V and 10-60Hz from an AC power source 5 to the surface ozone generator element 1 for generating plasma between both electrodes for changing O2 molecules in the atmosphere to O3 molecules.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a creeping ozone generator used for deodorization or water treatment.

2. Description of the Related Art As one of methods for generating ozone, it is known to provide electrodes on both surfaces of a ceramic plate or the like and apply a high-voltage current to cause creeping discharge to ozonize surrounding oxygen. . In this case, as the ozone generator, those obtained by baking or spraying a metal on both sides of a ceramics plate are generally used.

[Problem to be Solved by the Invention] This creepage ozone generator has conventionally been manufactured by coating and baking or spraying a metal on a ceramic substrate, so that it is costly to obtain a metal thickness of several millimeters. It was very difficult technically and technically. Therefore, the thickness of the metal electrode portion is several tens to
It has drawbacks as thin as several hundreds of μm and a short service life of at most 3,000 hours. The present invention eliminates these conventional disadvantages,
It is an object of the present invention to propose a creeping ozone generator having a long life and low production cost.

[Means for Solving the Problems] For this reason, according to the present invention, one side of the ceramic plate has a thickness of 0.1 μm to 2 μm.
A mesh formed of a nickel metal wire having a thickness of 1 mm was bonded with a resin-based adhesive, and a foil or a mesh of a nickel-based metal was bonded to the other surface to form a creeping ozone generator.

[Operation] Since the ozone generator can be produced simply by bonding a commercially available net formed of a standard metal wire to a ceramics plate, the production process is very simple. Moreover, the metal wire of the net has a cross-sectional area several times to several tens times larger than that of the metal foil sprayed or baked, so that the life of the ozone generator is considerably improved.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a plan view of the ozone generator of the present application, and FIG. 2 shows a cross section thereof. Ozone generator 1
Uses a ceramic plate 2 of about 0.1 μm to 1 mm as its substrate. A net 3 formed of a nickel-based metal wire having a diameter of 0.1 μm to 2 mm is bonded to one surface A of the ceramic plate 2 as an electrode with a resin-based adhesive. In this case, it is desirable to use a metal wire 3 having a mass of 1 to 5 mm. A part of the metal net 3 is connected to a power source 5 via a conductor 4. Note that a commercially available standard product may be used for the metal net 3.

On the other hand, on the other surface B of the ceramic plate 2, a net formed of the same nickel-based metal wire or a nickel-based metal foil 6 as an electrode is adhered with an adhesive.
In this case, it is desirable to use a metal net having a wire diameter of 0.1 μm to 2 mm, and a metal foil having a thickness of 0.01 to 0.2 mm. An electrode 6 formed of a metal net or a metal foil is connected to a high-voltage power supply 5 through a conductor 7.

When an electric current of 2,000 to 8,000 volts and 10 to 60 kilohertz is applied from the high-voltage power supply 5 to the ozone generator 1 having the above-described structure, plasma is generated on the surface of the electrode, and O ₂ molecules around the electrode are converted to O _2. Change to ₃ . As a result of the test, the conventional ozone generator had a life of only about 3,000 hours, but in the present invention, the use of 30,000 hours, which is about ten times as large, has become possible. The required capacity of ozone can be changed by changing the area of the metal net 3.

[Effect] According to the present invention, an ozone generator can be produced simply by bonding a commercially available nickel-based metal net to a ceramic plate as an electrode, so that the production process is easy and the cost required for it is extremely low. Only needs to be done. Also, the generator can be of any capacity by simply replacing the metal net. Furthermore, the life of the ozone generator is about 1
It is improved by 0 times.

[Brief description of the drawings]

FIG. 1 is a drawing showing one embodiment of an ozone generator of the present invention.

FIG. 2 is a cross section of FIG.

[Explanation of symbols]

 1 ozone generator 2 ceramic plate 3 electrode (metal net) 4, 7 conductive wire 5 high-voltage power supply 6 electrode (Metal net or metal foil)

Claims (1)

[Claims] 1. A ceramic plate having a thickness of 0.1 μm
A creeping ozone generator formed by bonding a net formed of a 2 mm nickel-based metal wire with a resin-based adhesive and bonding a nickel-based metal foil or a net to the other surface.