Ozonizer

Details Ozonizer Ozonizer

1989-08-09

1991-02-12

Lechert, Jr., Stephen J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

42218607, 42218621, 422907, B01J 1908

Patent

active

049922467

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

This invention relates to an ozonizer for generating ozone (O.sub.3) by causing a corona discharge to occur between electrodes oppositely arranged in air.
As ozonizers of this type there have been developed various ozonizers in which a pair of electrodes are oppositely arranged in air, to which a high voltage is applied to induce a corona discharge therebetween while continuously supplying air to the discharge field thereby to generate ozone continuously.
In such devices, however, it is necessary that ozone produced in the field of corona discharge should be continuously taken out of the discharge field, and at the same time fresh air (oxygen) should be supplied to the discharge field. Therefore, the conventional ozonizers are provided with a blower, a pump or the like at the front or rear side of the discharge field. Moreover, in the conventional ozonizers, especially in large ones, since the temperature of the electrodes rise due to the corona discharge, it is essential to provide a cooling device. This poses a problem that many accessories must be provided, so that it is difficult to make the whole device compact and simplify maintenance. An object of the invention is to solve such problems completely.


SUMMARY OF THE INVENTION

To attain the object this invention adopts the following arrangement.
The ozonizer of this invention is of the type that a corona discharge is caused to occur between electrodes oppositely arranged in air, and is characterized by that one of the electrodes comprises blades, the other electrode comprises a casing, and the blades and the casing form a blower.
In this construction, by applying a high voltage between the blades which form one electrode and the casing which forms the other electrode, it is possible to cause a corona discharge to take place between them. As the above-mentioned blades are driven by a motor in the same manner as in ordinary ventilators, air (oxygen) is drawn through an intake port and exhausted outside through a space formed between the blades and the casing. At that time, oxygen in the air taken in passes through the field of corona discharge, so that a part of the oxygen is changed to ozone in this discharge field. The ozone produced in this manner is continuously exhausted outside in the above-mentioned flow.
This arrangement makes it unnecessary to provide an apparatus for causing a corona discharge to occur and separately a blower for supplying oxygen to the discharge field and taking out the ozone generated. As a result, the number of parts is reduced and the whole device can be made compact.
Moreover, since the gas positively flows in contact with the blades and the casing which form the electrodes, thermal radiation from the electrodes can be enhanced without difficulty.
Since the device of the invention is constructed as described above, it is possible to generate ozone efficiently, to make the whole device simple and compact, and to provide an ozonizer having a large capacity without the necessity of providing a cooling device having a high ability.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side elevational view showing a cross section of one embodiment of the invention;
FIG. 2 is a front view showing a cross section of the same embodiment; and
FIG. 3 is a perspective view showing another embodiment of the invention.


DESCRIPTION OF THE PREFERRED EMBODIMENT

One embodiment of the invention will be described below with reference to the drawings.
The ozonizer has a fundamental structure of a Silocco type blower provided with an impeller 1 and a casing 2.
The impeller 1 is provided with a boss 11, circular side plates 12 and blades 13 mounted on the outer peripheral portions of the side plates at predetermined intervals. The boss 11 is made of an insulating material such as ABS resin or vinyl chloride, and a motor 3 has a rotary shaft 31 connected to the boss 11. At least that side plate 12 which is positioned opposite the motor 3 and provided with a window for ventilation and the blades 13 are made of a mate

REFERENCES:
patent: 4159971 (1979-07-01), Gneupel
patent: 4832918 (1989-05-01), Horikoshi et al.

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