JPH09315802A - Discharge electrode for ozonizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge electrode for ozonizer capable of being miniaturized without lowering the generation efficiency of ozone by specifying the constitution of the structure and the arrangement of an electrode. SOLUTION: Electrode bodies, 1, 1, 1 and 2, 2, 2 formed by coating a circular sectional conductive body 3 with a fluororesin so as to form an exposed part 3a on one end are fixed in parallel to a frame body 6 made of an insulating material at a certain pitch to alternately arrange the different poles. The electrode bodies to be the same poles are fixed so that the exposed parts 3a are positioned at one side of the opposed sides 6a, 6b of the frame body 6 and the exposed parts 3a, 3a are connected to lead chips 7, 8 by a fixing means 9. As the fluororesin, polytetrafluoroethylene for example is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a discharge electrode suitable for an ozone generator.

[0002]

2. Description of the Related Art In a wide environment or when deodorizing a large amount of air, ozone is generated by performing silent discharge such as corona discharge while flowing air through parallel plate electrodes, and this ozone is sent from an air supply means. The method of mixing with a large amount of air and releasing it to the environment at a concentration that does not affect the human body is adopted.

[0003]

However, since such a device is usually designed on the premise of deodorizing a wide space such as a hospital or a defense facility, it is a convenient device for generating a large amount of ozone. However, there is a problem that the device is unnecessarily large-scaled and costly when used alone in a small space such as a private room or a home.

Although it is possible to manufacture a device in which the area of the parallel plate electrodes is reduced to suppress the ozone generation amount, the ozone generation efficiency of the parallel plate electrodes is reduced, and therefore the ozone generation amount is decreased. However, there is a problem that it cannot be miniaturized.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a discharge electrode for an ozone generator which can be miniaturized without lowering the ozone generation efficiency. It is to be.

[0006]

In order to solve such a problem, in the present invention, a conductor having a circular cross section is uniformly coated with a fluorine resin so as to form an exposed portion at one end. The electrode bodies are fixed in parallel to a frame body made of an insulating material at a constant pitch so as to alternately have different polarities. When air is sent to the electrode body, the electrode body is configured to have a circular cross section, so a vortex is generated in the vicinity of the electrode body and the air on the surface of the electrode body is separated, and the amount of air contacting the electrode body per unit time is large Therefore, the ozone yield increases.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The details of the present invention will be described below with reference to illustrated embodiments. Fig. 1 (a), (b)
Respectively show one embodiment of the present invention. In the figure, reference numerals 1, 1, 1 and 2, 2, 2 are electrode bodies each serving as one pole, so that they have different polarities alternately. They are arranged in a grid pattern at a constant pitch, for example, about 2 to 4 mm.

These electrode bodies 1 and 2 have a predetermined film thickness so that an exposed portion 3a is formed at one end on a conductor 3 such as a metal or carbon having a predetermined diameter, for example, 2.5 mm and a circular cross section.
For example, a fluorine-based resin layer 4 formed by coating with a thickness of 0.7 mm, for example, a layer of polytetrafluoroethylene is provided.

These electrode bodies 1 and 2 are arranged so that the same poles are placed on the frame body 6 having the window 5 on one of the sides 6a and 6b facing the exposed portion 3a of the conductor 3. Fixed,
The exposed portions 3a, 3a, ... Are connected to the lead pieces 7, 8 by a fixing means 9 such as a screw so that a high voltage from a high voltage power source (not shown) is applied.

In the figure, reference numeral 10 is a cover plate, and 11 is a screw hole for fixing an electric fan.

In this embodiment, as shown in FIG. 2, a small electric fan 12 is fixed to one side of the frame body 6 with a screw 13 and air is fed from the window 5 to the electrode bodies 1 and 2, while the electrode body 1 is being fed. When a voltage, such as 2000 to 8000 V, is applied between the electrode body 2 and the electrode body 2 to generate silent discharge on the surface of the electrode body, oxygen in the air becomes ozone due to the silent discharge on the surface of the electrode bodies 1 and 2. This ozone is carried by the air flow from the fan 12 and released into the environment that requires ozone.

By the way, since the electrode bodies 1 and 2 are formed in a cylindrical shape, a vortex e is generated in the vicinity of the electrode bodies 1 and 2 as shown in FIG. The ozone that has been removed is stripped off, and new oxygen is supplied to the surfaces of the electrode bodies 1 and 2 instead.

As a result, in comparison with a conventional ozone generating electrode body using a flat electrode in which air flows as a laminar flow,
Ozone can be generated with high efficiency, and the ozone generator can be downsized without lowering the yield.

FIG. 4 shows an embodiment of an ozone generator using the above-mentioned electrode body. In the figure, reference numeral 11 is a base mountable on the ceiling, which serves as an air intake port and an ozone discharge port. 12 and 13 are formed, and these windows 12 and 13 are formed.
An endothermic heat sink 15 fixed to the endothermic surface of the Peltier element module 14 is arranged in the flow path connecting the two, and an electric fan 16 for air supply is further provided between the window 12 serving as an air intake and the endothermic heat sink 15. The above-mentioned electrode bodies 1 and 2 are provided in the window 13 serving as an ozone discharge port.

Driving power is supplied to the Peltier element module 14 and the electric fan 16 by the low-voltage power supply unit 17 fixed to the base 11, and the bases 1 are mounted on the electrode bodies 1 and 2.
The high voltage power supply unit 18 fixed to the electrode body 1,
2 is supplied with a voltage that causes silent discharge.

On the heat radiation surface of the Peltier device module 14, a heat radiation heat sink 20 for receiving air from the electric fan 19 is provided.

In this embodiment, when the base 11 is fixed to the ceiling and commercial power is supplied to each of the power supply units 17 and 18, the temperature of the heat absorbing heat sink 15 is lowered due to heat absorption and heat dissipation by the Peltier element module 14. Moisture of the air sent by the electric fan 19 for sending air is condensed on the surface of the heat sink 15 and removed as water drops.

The water droplets can be treated without the need for piping by using the heat energy radiated from the Peltier device module 14 to vaporize and dissipate it into the atmosphere.

The air that has passed through the heat sink 15 for heat absorption flows into the electrode bodies 1 and 2 as indicated by the arrows in the figure in a state where the temperature rises again due to the outside air temperature and the relative humidity decreases, and as described above. While generating a vortex near the electrode body,
Ozone is generated under the action of the silent discharge of the electrode bodies 1 and 2, and is emitted to the environment through the window 13.

According to this embodiment, the dehumidified air can be supplied to the electrode bodies 1 and 2, so that the electrode bodies 1 and 2 are electrically conductive together with the polytetrafluoroethylene layer 4 on the surface. Water can be prevented from coming into contact with the body 3, and the generation of nitrogen oxides can be suppressed. Further, since the fluorine-based resin is used as the insulating layer of the conductor 3, it has higher durability against ozone as compared with other insulating materials such as ceramics, and has no cracks in the insulating layer due to deterioration, and can be used for a long period of time. Therefore, it is possible to reliably suppress the generation of nitrogen oxides.

Further, since the ozone generator can be constructed as an extremely lightweight and small unit, it can be mounted on the ceiling or the like by screwing, and the piping work with the air source, which has been conventionally required, is unnecessary. Can be extremely simplified.

Although the electrode bodies 1 and 2 of the respective poles are arranged in a straight line in the above-described embodiment, the electrode bodies 1 and 2 of different poles are arranged in a straight line as shown in FIG. The same effect can be obtained by arranging the electrodes 11 and 12 and arranging them in a random pile shape by shifting the electrode bodies 1 and 2 by a half pitch.

[0023]

As described above, in the present invention,
Electrodes formed by uniformly coating a fluorine-based resin on a conductor having a circular cross section so as to form an exposed portion at one end are formed of an insulating material at a constant pitch so as to alternately have different polarities. Since it is fixed in parallel to the frame body, when air is sent from one side, vortices are generated on the surface of the electrode body, so ozone can be generated with higher efficiency compared to a flat electrode, and the surface of the conductor Since the polytetrafluoroethylene layer is formed on the substrate, it is possible to prevent dew condensation as much as possible and suppress the generation of nitrogen oxides.

[Brief description of drawings]

1A and 1B are respectively a front view of an apparatus showing an embodiment of the present invention and a top view with a cover removed.

FIG. 2 is a diagram showing a usage pattern of the same apparatus.

FIG. 3 is a diagram schematically showing the flow of airflow in the same apparatus.

4 (A) and 4 (B) are front views showing an embodiment of a deodorizing device using the electrode body of the present invention, and FIG.
It is sectional drawing in a line.

FIG. 5 is a view showing another embodiment of the present invention in an array form of electrode bodies.

[Explanation of symbols]

 1, 2 Electrode body 3 Conductor 3a Exposed part 4 Fluorine-based resin layer 5 Window 6 Frame body 7, 8 Lead piece 10 Fan

Claims (3)

[Claims] 1. An insulating material in which a conductor having a circular cross section is uniformly coated with a fluorine-based resin so as to form an exposed portion at one end, and an insulating material is formed at a constant pitch so as to alternately have different polarities. A discharge electrode for an ozone generator, which is fixed in parallel to a frame made of. 2. The ozone generator according to claim 1, wherein the exposed portion of the electrode body having the same polarity is fixed to one of opposite sides of the frame body, and the exposed portion is connected to a lead piece. Discharge electrode for equipment. 3. The discharge electrode for an ozone generator according to claim 1, wherein the fluorine-based resin is polytetrafluoroethylene.