JPH09301703A - Rotary type ozone generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary type ozone generator having good generation efficiency of ozone and to well execute the drying, sterilizing, deodorizing, etc., in a housing with the compact device which contributes the saving of spaces. SOLUTION: The rotary type ozone generator disposed with a stationary electrode and a rotary electrode opposite to each other has a first air intake port 12a and a second air intake port 15. The primary air a sucked from the first air intake port 12a is ozone between the electrodes in sucking the air from the intake ports 12a, 15 by a suction fan 4 inserted into a fan casing 3. The generated ozone is discharged together with the secondary air (b) sucked from the second air intake port 15 from a discharge port 8 disposed in the fan casing 3. The discharge port and the space in the housing are communicated with each other via a heater.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary ozone generator, which is adapted to apply a high voltage to a rotary electrode and a fixed electrode to generate discharge between the electrodes to extract ozone. Is used as a deodorizer and a sterilizer. Furthermore, the present invention relates to an in-compartment drying and ozone generating device used when deodorization / sterilization and drying in the chamber are required, and such a device is, for example, sterilization / drying of dishes, kitchen knives, cutting boards, etc. It is used for sterilization and drying of shoes, and for drying, deodorizing and sterilizing shoes in shoe boxes and ski shoes drying rooms in hospitals. However, the use of the device according to the present invention is not limited to these.

[0002]

2. Description of the Related Art As a conventional rotary ozone generator, a rotary vane is made of a conductor and at least a part of an inner peripheral surface of a rotary vane case for housing the rotary vane is made of a conductor.
A high voltage is applied from one end of the rotary shaft of the rotary blade to use the peripheral surface of the rotary blade as a rotary electrode, and the conductor of the rotary blade case is used as a fixed electrode to generate discharge between both electrodes to rotate ozone. A device has been proposed in which the blade case is taken out from the discharge port (JP-A-63-218503).

Such a rotary ozone generator is useful in that the entire device can be made compact, but since the ozonized air intake and the process air intake are the same, dirt adheres to the electrodes. It becomes a destabilizing factor of ozone generation, and when it is used in a place where there are many corrosive gases such as hydrogen sulfide gas and ammonia gas (generally gas that easily corrodes metals), the amount of ozone generation decreases significantly. In addition, there is a problem in that it is necessary to carry out an over hole in a short time before use.

There are also cases where it is desired to store a desired substance in the refrigerator and to sterilize, deodorize or dry the contained substance. For example,
Tableware, kitchen knives, cutting boards, etc. in food factories need to be dried after being washed, and also need to be sterilized from the viewpoint of hygiene. Although it is conceivable to use an ozone generator as the sterilization means, if an ozone generator and a drying device were provided, the device would be bulky and the number of parts as a whole would increase.

[0005]

SUMMARY OF THE INVENTION The present invention was devised to solve the above-mentioned problems in the conventional rotary ozone generator, and the rotary ozone generator has good ozone generation efficiency. It is intended to provide.

Another object of the present invention is to provide an ozone generator having a drying means for the inside of the refrigerator, which contributes to space saving with a compact device while drying and sterilizing the inside of the refrigerator. -To deodorize.

[0007]

In order to achieve the above object, the first technical means adopted by the present invention is to arrange a fixed electrode and a rotating electrode so as to face each other, and to apply a high voltage between the both electrodes. In the rotary ozone generator for generating ozone from the air supplied to the discharge space between the electrodes, the device has a first air intake port and a second air intake port and is installed in the fan casing. When sucking air from the inlet with the suction fan, the primary air sucked from the first air inlet is ozonized between the electrodes, and the generated ozone is combined with the secondary air sucked from the second air inlet. It is characterized in that it is mixed and discharged from an outlet provided in the fan casing.

Since the ozonized air (primary air) and the treated air (secondary air), which were conventionally sucked from the same inlet, are sucked from the separate inlets, they are used to generate ozone. It is possible to purify the primary air in advance to efficiently generate ozone, mix the generated ozone with the secondary air sucked from another inlet, deodorize the secondary air, and discharge the secondary air. At the same time, since ozone can be diluted by introducing the secondary air and discharged from the outlet, ozone having a relatively high concentration generated from the primary air does not adversely affect the machine or human body.

Preferably, in such an apparatus, a rotor forming a rotary electrode is installed in a cylindrical body forming a fixed electrode, and the rotor and the suction fan are connected to a motor via a conductive rotary shaft, The one end side of the tubular body is communicated with the first air intake port, the other end side is communicated with the fan casing, and the second air intake port is provided at the connecting portion between the other end side of the tubular body and the fan casing. Is provided. Further, it is preferable that the other end side of the tubular body is communicated with the inside of the fan casing through an acceleration supply portion having an opening facing the inside of the fan casing. The accelerating supply unit is configured to suck in the primary air vigorously by reducing the diameter toward the opening.

It is preferable to fill the first air intake port with an air cleaning filter so that the ozonized air can be cleaned in advance and the electrodes are not contaminated with dust. If an air cleaning / corrosive gas adsorption filter is used as the air cleaning filter, the corrosive gas will not deteriorate the ozone generation efficiency.

The second technical means adopted by the present invention is that the fixed electrode and the rotating electrode are arranged so as to face each other, a high voltage is applied between the both electrodes, and air is supplied to the discharge space between the electrodes. In a rotary ozone generator that generates ozone from
The apparatus has a first air inlet and a second air inlet, and a suction fan installed in the fan casing sucks the air in the interior space from the inlet, and sucks the air from the first air inlet. The primary air is ozonized between the electrodes, and the generated ozone is exhausted together with the secondary air sucked from the second air intake through the exhaust port provided in the fan casing, and the exhaust port and the storage chamber. It is characterized in that it communicates with the inner space via a heater, and preferably, by communicating the second air intake with the inner space via a duct, during heater operation. The secondary air sucked by the suction fan is warmed by the heater so as to be supplied to the interior space, and when high voltage is applied, the primary air sucked from the first air intake port is ozonized between the electrodes. The generated ozone to the second It is characterized in that so as to be discharged from the discharge port together with the secondary air sucked from the inlet Kido.

By doing so, the air in the interior space can be supplied to the heater by using the suction fan, and the air heated and dried by the heater is discharged to the interior space again.
By repeating this, the air in the indoor space can be dried. It is preferable that the operation of the heater and the application of the high voltage are freely switchable. For example, after the heater is operated for 1 hour, the high voltage is applied to generate ozone. It is preferable that the apparatus is provided with a temperature sensor to maintain the inside air at a predetermined temperature, and the high voltage application is intermittently performed for a predetermined time. However, it is not excluded that the high voltage is applied and the heater is operated at the same time.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The basic structure of a rotary ozone generator according to the present invention is similar to that of a conventional device, in which a cylindrical body 1 forming a fixed electrode is internally provided with a rotor 2 forming a rotating electrode. Then, a high voltage is applied between the opposing electrodes to generate corona discharge between the electrodes, and the air sucked into the discharge space is introduced to generate ozone.

Reference numeral 3 in the drawing is a fan casing in which a sirocco fan 4 exemplified as a suction fan is housed, and the fan casing 3 is composed of a main body of a substantially short cylinder having both end faces, and one end face 3a. Is cut out in a circular shape so as to communicate with the cylindrical body 1, and the end face 3b on the other side is connected via a plate 5 to a mold.
A motor casing 7 that houses the motor 6 is mounted by a screw (not shown). A desired portion of the peripheral surface of the main body of the fan casing 3 is projected and an exhaust port 8 is formed as an opening. When the sirocco fan 4 rotates, air is sucked in to generate ozone, and the generated ozone is removed. It is designed to be mixed with the process air that has been sucked in separately and to be discharged from the discharge port 8.

The cylindrical body 1 is composed of an outer casing 1a, a conductive fixed electrode 1b provided on the inner peripheral wall thereof, and a cylindrical ceramic dielectric 1c covering the fixed electrode.
The external casing 1a has an insertion portion 1 for the high-voltage power supply wire 9a.
d is projected, and a screw is engraved on the inner peripheral surface of the insertion portion 1d, and the power supply terminal 10a attached to the tip of the electric wire 9a.
Are connected by screwing to the fixed electrode 1b. On the other hand, the rotor 2 housed in the hollow portion of the cylindrical body 1
Is made of a highly conductive material such as stainless steel and formed into a cylindrical shape, and as described later, supplies electric power via a conductive rotating shaft 11 to function as a rotating electrode.

The space formed between both electrodes inside the cylindrical body 1 has one end communicating with the first air intake port and the other end communicating with the fan casing 3. A short tubular member 12 having a diameter larger than that of the tubular body is provided on one end side of the tubular body 1, and the opening of the short tubular member 12 forms a first air intake port 12a. Therefore, the primary air a is sucked in to cause ozonization between both electrodes. First
The air inlet 12a is filled with a filter 13 that cleans air and adsorbs corrosive gas, so as to clean the air to be ozonized in advance and adsorb and remove corrosive gas such as hydrogen sulfide gas and ammonia gas. I have to. The material and structure of the filter 13 are not particularly limited, and any known or later-developed air cleaning material may be used. It is preferable that the corrosive gas can be favorably adsorbed, and for example, an ordinary air cleaning filter to which an adsorbent utilizing a catalyst or the like is added is used.

On the other end side of the tubular body 1, the tubular body 1 and the fan casing are attached.
A connecting body 14 that connects the one end surface 3a of the thing 3 is attached. The connecting body 14 is configured by opposing two ring-shaped mounting portions 14a and 14b having different sizes, and connecting the mounting portions with a plurality of connecting pieces 14c at appropriate intervals in the circumferential direction. The space between the pieces 14c forms the second air intake port 15. Small diameter mounting part 14a
Is on the other end side of the cylindrical body 1, and the large-diameter mounting portion 14b is a fan casing.
Around each of the circular notches on the one end surface 3a of the thing 3 is attached by screws (not shown). Second air intake 1
The secondary air b sucked in from 5 is treated air, and is deodorized and discharged by being mixed with ozone generated in the fan case 3. The secondary air b also has a function of diluting ozone. Although the cylinder 1 and the connecting body 14 are separately configured in the embodiment, the point is that the second air intake port 1 is provided at the connecting portion between the other end of the cylinder 1 and the fan casing 3.
5 may be provided, and the tubular body 1 and the connecting body 14 may be integrally formed. Further, a cover having a desired opening is rotatably provided around the second air intake, and the amount of the secondary air sucked is adjusted by rotating the cover to adjust the concentration of ozone discharged. It may be adjustable.

Further, on the other end side of the cylindrical body 1, there is provided an accelerating supply section 16 for supplying the ozone generated between both electrodes into the fan casing 3, and the accelerating supply section 16 is a primary air a.
And function as an accelerator for generated ozone. Supply unit 1
Reference numeral 6 is formed in a substantially frustoconical shape, and one end side 16a having a large diameter is sandwiched between the other end of the cylinder 1 and the mounting portion 14a of the connecting body 14, and the fan casing is mounted from one end side. Three
As the diameter of the fan casing 3 is gradually reduced, the other end side of the small diameter is slightly expanded to form an opening 16b, and the opening 16b is formed through a notch in the one end surface 3a of the fan casing 3 to form the casing 3 It faces inside. The position of the opening 16b of the supply unit 16 is extended to be substantially on the same line as the one end surface 3a of the casing 3 in a side view, and the primary air a from the first air intake port 12a by the sirocco fan 4 is located. Has good suction.

A motor 6 is provided on the side surface 4a of the sirocco fan 4.
An electrically conductive rotary shaft 11 connected to the sirocco fan 4 is linked with the rotation of the motor 6 via a cylindrical body 11a. One end of the rotating shaft 11 penetrates the other end surface 3b of the fan casing 3 and is connected to the motor 6, and the other end penetrates the side surface 4a of the sirocco fan 4 and is inserted through the supply portion 16. And then cylinder 1
It extends to the inside and its tip is connected to the rotor 2 so that the rotor 2 rotates in conjunction with the rotation of the motor 6.

Fun casing 3 of motor casing 7
An opening 7a into which the high-voltage supply electric wire 9b is inserted is provided in the vicinity of the electric wire 9b. The power supply terminal 10b is arranged downward in a protective case (not shown), and its tip is brought into contact with the conductive rotating shaft 11 to be supplied from the high-voltage supply wire 9b via the rotating shaft 11. Electric power is supplied to the rotating electrode 2.

In the rotary ozone generator having the above structure, when the motor 6 is driven and a high voltage is applied between the rotary electrode and the fixed electrode, the first air is generated as the scyllo fan 4 rotates. Although air is taken in through the intake port 12a and the second air intake port 15, the first air intake port 1
The ozonized air (primary air a) sucked in from 2a is introduced into the discharge space between both electrodes after being cleaned by the filter 13 that adsorbs corrosive gas and dust, so It is possible to prevent the electrodes from getting dirty,
In addition, ozone generation efficiency is also good.

The space formed between both electrodes inside the cylindrical body 1 extends to the vicinity of the inside of the fan casing 3 and the supply portion 1
Since it communicates with the fan casing 3 via 6,
Ozone generated from the primary air is prevented from escaping from the second air intake 15. Further, since the generated ozone is supplied to the fan casing 3 via the accelerating supply unit 16 that reduces its diameter, it is mixed with the secondary air sucked from the second air intake port 15 as the sirocco fan 4 rotates. The ozone introduced into the fan casing 3 is
The secondary air b introduced from the air intake port 15 is entrained in and mixed with the secondary air b while deodorizing the secondary air b, and while being diluted with the secondary air b, the secondary air b is discharged together with the secondary air b. Emitted from 8.

FIG. 3 is a schematic view showing a second embodiment of the present invention, in which the second air intake port 15 communicates with the internal space S via the duct 15a and the fan casing is used. The discharge port 8 provided in 3 communicates with a heater casing 18 having a heater 17 installed therein.
Communicates with the internal space S via the duct 18a. An object to be dried, sterilized, and deodorized, such as tableware, a kitchen knife, a cutting board, footwear such as shoes, or clothing such as a lab coat, is accommodated in the interior space S.

When the suction fan 4 and the heater are operated, the rotation of the suction fan 4 sucks the air in the storage chamber from the duct 15a, and the heater 17 heats and dries the air in the storage chamber from the duct 18a. It is designed to be discharged to the inside, and the space inside the refrigerator can be dried by continuously performing this. When the duct 18a is extended to the lower part of the inside of the refrigerator, the air in the refrigerator can be efficiently circulated.

When the suction fan 4 is operated and a high voltage is applied between the electrodes, the primary air sucked from the first air inlet 12a is ozonized between the electrodes, and the generated ozone is communicated with the interior space. Duct 15a (second air intake 1
5) Fan casing 3 with secondary air sucked from
It is introduced into the heater casing 18 from the discharge port 8 provided in the above, and if the heater 17 is not operating, it is discharged from the duct 18a to the inside without being heated.

The rotation of the suction fan 4 by the motor 6, the application of the high voltage by the high voltage generator 19, and the operation of the heater 17 are controlled by the controller 20, which follows a preset operation method of the apparatus. It is designed to be driven. Further, a temperature sensor-21 is provided in the duct 15a,
The heater 17 is controlled so as to maintain a preset temperature (for example, 40 ° C.).

The operation of the ozone generator equipped with such a heater will be described. By setting a drying time (for example, 1 hour, 2 hours, 3 hours) in advance,
After a lapse of a predetermined time, the power supply to the heater 17 is automatically cut off and a high voltage is applied between the electrodes.
The high voltage is also set to be applied every predetermined time for a predetermined time (for example, a voltage is applied for 5 minutes at intervals of 30 minutes). In addition, the heater for drying with the heater 17
Or the sterilization phase by ozone generation in a single shot,
Alternatively, whether to repeat several times is set in advance.

When a switch (not shown) is turned on after the operation is set, first, the suction fan 4 and the heater 17 are operated for a set time. Heater 17 has a temperature sensor
It is intermittently operated by 21 so as to maintain a predetermined temperature. Heater 17 is turned off after the set time
Then (in principle, the fan 4 continues to operate), and ozone is generated for a predetermined time by applying a high voltage.

FIG. 4 is a view showing the duct 15a, which is provided at the connecting portion between the other end side of the cylindrical body 1 and the fan casing 3 so as to cover the second air intake port 15. 4A is a front view of the duct 15a, FIG. 4B is a side view, FIG. 4C is a rear view, and FIG. 4D is a bottom view, which are formed on the front wall on one end side of the short tubular main body. The main body covers the second air intake port 15 by inserting the tubular body 1 through the opening portion 15b, and is attached to the fan casing 3 side of the opening-like other end side 15c. . An opening 15d is formed on the lower end side of the main body.
The c is arranged so as to communicate with the internal space S. The duct 15a is made of heat resistant and ozone resistant rubber.

[0030]

According to the present invention, a fixed electrode and a rotating electrode are arranged so as to face each other, a high voltage is applied between the both electrodes, and ozone is generated from air supplied to a discharge space between the electrodes. In the ozone type ozone generator, the device has a first air intake port and a second air intake port, and in order to suck air from the intake port with a suction fan installed in a fan casing,
The primary air sucked from the first air inlet is ozonized between the electrodes, and the generated ozone is discharged from the outlet provided in the fan casing together with the secondary air sucked from the second air inlet. Therefore, the first air intake can be filled with an air purifying filter to preliminarily purify ozonized air, so that the electrodes are contaminated with dust or dirt, and the ozone generation efficiency is deteriorated due to corrosive gas. There is nothing. Ozone, which is well generated from the primary air, is mixed with the secondary air in the fan case and is discharged from the outlet while deodorizing the secondary air. Since the treated air is positively taken in as the secondary air separately from the ozonized air, the treatment efficiency such as deodorization is good.

According to the second and third aspects of the present invention, the suction fan is used for both ozone generation and drying of the air in the refrigerator, so that the inside of the refrigerator can be dried and sterilized and deodorized while having a compact structure. It can be carried out.

Further, the other end of the cylindrical body is provided with a fan-shaped opening.
In the case of communicating with the inside of the fan casing through the supply section facing the inside of the singing, although one suction fan draws in air from two air intake ports,
The primary air can be satisfactorily sucked from the first air suction port.

[Brief description of drawings]

FIG. 1 is a schematic side view of a rotary ozone generator according to the present invention.

FIG. 2 is a schematic cross-sectional view of FIG. 1, showing the inside of a rotary ozone generator with a cutout.

FIG. 3 is a schematic diagram of an ozone generator including a drying unit.

FIG. 4 is a schematic view of a duct.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body 1b Fixed electrode 2 Rotor 3 Fan casing 4 Suction fan 6 Motor 8 Discharge port 10a Electric power supply 10b Electric power supply 11 Conductive rotating shaft 12a First air intake port 15 Second air intake port 17 Heater a Primary air b Secondary air S Internal space

Claims (6)

[Claims] 1. A rotary ozone generator, in which a fixed electrode and a rotary electrode are disposed so as to face each other, a high voltage is applied between the two electrodes, and ozone is generated from air supplied to a discharge space between the electrodes. In the above device, the device has a first air intake port and a second air intake port, and in order to suck air from the intake port with a suction fan installed in the fan casing, Air is ozonized between the electrodes,
A rotary ozone generator characterized in that the generated ozone is discharged from an outlet provided in a fan casing together with secondary air sucked from a second air intake. 2. A rotary ozone generator in which a fixed electrode and a rotary electrode are disposed so as to face each other, a high voltage is applied between the electrodes, and ozone is generated from air supplied to a discharge space between the electrodes. In the above device, the device has a first air intake port and a second air intake port, and a suction fan installed in a fan casing sucks air in the interior space from the intake port. The sucked primary air is ozonized between the electrodes, the generated ozone is mixed with the secondary air sucked from the second air intake, and the ozone is discharged from the discharge port provided in the fan casing. A rotary ozone generator characterized in that the discharge port and the interior space are communicated via a heater. 3. The second air intake is communicated with the internal space via a duct to warm the internal air sucked from the second air intake by the suction fan by the heater during a heater operation. When the high voltage is applied, the primary air sucked from the first air inlet is ozonized between the electrodes, and the generated ozone is sucked from the second air inlet. The rotary ozone generator according to claim 2, wherein the air is discharged from the discharge port into the internal space together with the internal air. 4. A cylindrical body which constitutes a fixed electrode is internally provided with a rotor which constitutes a rotary electrode, and the rotor and a suction fan are connected to a motor through a conductive rotary shaft, and one end of the cylindrical body. Side first
A second air intake port is provided at a connecting portion between the other end side of the cylindrical body and the fan casing, the second air intake port being communicated with the air intake port and the other end side being communicated with the fan casing. The rotary ozone generator according to any one of 1 to 3. 5. An accelerating supply portion having a diameter reduced toward the fan casing is provided on the other end side of the cylindrical body, and an opening of the accelerating supply portion is exposed in the fan casing. The rotary ozone generator according to claim 4. 6. The rotary ozone generator according to claim 1, wherein the first air intake port is filled with an air cleaning filter.