JPH11139810A - Ozonizer and water purification equipment and method for cleaning the same ozonizer and equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ozonizer capable of removing ammonium nitrate deposited on the discharge surface of a discharge body without requiring any additional manpower and without bringing any removal means into direct contact with the ammonium nitrate. SOLUTION: In this ozonizer, an ozone generation element 20 is formed by laminating a discharge body 21 that consists of a first dielectric layer 25 provided with a linear discharge electrode 25a and a second dielectric layer 26 provided with a planar induction electrode 26a, to a third dielectric layer 27 provided with a heater electrode 27a. By generating heat from the heater electrode 27a for about 10 sec, the discharge body 21 can be heated to 250 to 350 deg.C to scatter and remove ammonium nitrate molecules deposited on the discharge body 21, from the body 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone generator for generating ozone using oxygen in the atmosphere, a water purifying apparatus for use in a 24-hour bath, a jacuzzi bath and the like provided with the ozone generator, and an ozone generator. The present invention relates to an apparatus cleaning method.

[0002]

2. Description of the Related Art Conventionally, as the above-mentioned ozone generator, for example, a small-sized ozone generator used for purifying water and deodorizing water at home is known. This ozone generator includes a dielectric layer formed of ceramics,
A linear discharge electrode provided on one surface of the dielectric layer,
A creeping-type discharge body comprising a planar induction electrode provided on the other surface of the dielectric layer opposite to the linear discharge electrode, and a voltage for causing a discharge from the linear discharge electrode to a linear discharge electrode. And a power supply circuit having a transformer to be applied to the planar induction electrode is housed in a resin case.

[0003]

By the way, in a large industrial ozone generator, oxygen or dry air generated artificially is used as a raw material gas for generating ozone. The small ozone generator used uses the natural atmosphere. Since this atmosphere has a higher humidity than the artificially generated dry air, a large amount of nitrogen oxides is generated simultaneously with ozone due to discharge. For this reason, the nitrogen oxides chemically react with ammonia present in the atmosphere to produce ammonium nitrate, and the produced ammonium nitrate covers the linear discharge electrode. Therefore, the density of the electric field generated from the linear discharge electrode decreases. In addition, the ammonium nitrate covering the linear discharge electrode absorbs moisture in the atmosphere and becomes conductive, and apparently the area of the linear discharge electrode increases, and the capacitance of the dielectric increases. The balance of the secondary output is lost, and the discharge stops.

That is, in the conventional ozone generator, since the ammonium nitrate covers the linear discharge electrode, the density of the electric field generated from the linear discharge electrode decreases, and the capacitance of the dielectric increases. There was a problem that the discharge was stopped because the secondary side balance was lost. Therefore, conventionally, a method of disassembling the ozone generator and wiping ammonium nitrate adhering to the linear discharge electrode with water or a solvent has been adopted. That is, the conventional ozone generator has a problem that maintenance is required manually. In addition, since a high voltage is applied to both of the electrodes, there is a problem that cleaning that directly touches the discharge body is difficult to perform.

Accordingly, the present invention provides an ozone generator, a purifier, and an ozone generator capable of easily removing at least ammonium nitrate among substances adhering to a discharge body without manual operation and without touching the discharge body. The object of the present invention is to realize a cleaning method.

[0006]

According to the present invention, there is provided an ozone generating apparatus having a discharge element for generating ozone by discharging, wherein the heat is generated by the flow of an electric current. A heating element for heating the discharge element; and a heat source for heating the discharge element to a predetermined temperature at which at least ammonium nitrate molecules among substances adhered to the discharge element are scattered. And a technical means that a circuit is provided.

According to a second aspect of the present invention, in the ozone generating apparatus for generating ozone by discharging, a dielectric formed of a ceramic material, a discharge electrode provided on one surface of the dielectric, A discharge body having an induction electrode provided in the dielectric at an interval facing the electrode, and provided on the other surface of the dielectric opposed to the induction electrode, wherein a current is supplied; A heating element that generates heat by flowing and heats the discharge electrode; and heats the heating element to a predetermined temperature at which current flows through the heating element to generate heat and evaporate at least ammonium nitrate among substances adhered to the discharge element. And a heat generating circuit. Note that the above "is provided on the other surface of the dielectric opposite to the induction electrode," and the case where the heating element is provided on the other surface of the dielectric, The meaning includes a case where it is sandwiched between a dielectric and another laminated dielectric and is buried when viewed as a whole.

According to a third aspect of the present invention, in the ozone generator according to the first or second aspect, a technical means is adopted in which the predetermined temperature is 200 ° C. to 500 ° C.

According to a fourth aspect of the present invention, in the ozone generator according to the first or second aspect, a technical means is adopted in which the predetermined temperature is 250 ° C. to 350 ° C.

According to a fifth aspect of the present invention, there is provided the ozone generator according to any one of the first to fourth aspects, further comprising a heat generation time control means for controlling a heat generation time of the heating element. Adopt technical means.

According to a sixth aspect of the present invention, there is provided the ozone generator according to the fifth aspect, wherein the heat generation time control means is a positive characteristic thermistor connected in series to the heating element. adopt.

According to a seventh aspect of the present invention, in the ozone generator according to any one of the second to sixth aspects, the discharge body is housed in a resin case and the inductive electrode is provided. Is connected to the high voltage side, the discharge electrode is connected to the ground side, and is partially covered with a protective film for preventing abrasion due to discharge, and a part thereof is A technical means of being exposed from one surface of the dielectric is employed.

According to an eighth aspect of the present invention, in the ozone generator according to any one of the first to seventh aspects, the discharge body is housed in the case via a heat-resistant rubber. It adopts the technical means of:

According to a ninth aspect of the present invention, in the ozone generator according to any one of the first to eighth aspects, a power supply circuit for supplying power to the discharge body and the heat generating circuit is provided. Adopt technical means.

According to a tenth aspect of the present invention, in the ozone generator according to the ninth aspect, a timer for controlling a time for supplying power to the heat generating circuit is connected to the power supply circuit. Adopt means.

According to an eleventh aspect of the present invention, there is provided the ozone generator according to any one of the first to ninth aspects, a filtering device for filtering water, and a filter for filtering water. And an ozone intake means for taking in the ozone generated from the ozone generator.

According to the twelfth aspect of the present invention, a heating element for heating the discharge element of an ozone generator having a discharge element for generating ozone by discharging, and a heat generation circuit for causing a current to flow through the heating element to generate heat. A technical means is employed in which the discharger is heated to a predetermined temperature to evaporate at least ammonium nitrate among substances adhered to the discharger.

According to the thirteenth aspect of the present invention, there is provided a filtering device for filtering water, an ozone taking-in means for taking ozone generated from the ozone generating device into the water filtered by the filtering device, A cleaning method for a water purification device provided with an ozone generation device having a discharge body that generates a heating element, wherein a heating element that heats the discharge body;
Using a heat generating circuit for generating a current by passing a current through the heat generating body, a technical means is employed in which the discharge body is heated to a predetermined temperature to evaporate at least ammonium nitrate among substances adhered to the discharge body.

[0019]

According to the invention as set forth in claims 1 to 13,
Technical means is adopted in which the discharger is heated to a predetermined temperature to evaporate at least ammonium nitrate among the substances attached to the discharger. Therefore, there is no need to touch the discharge body unlike the conventional work of wiping ammonium nitrate attached to the discharge body with water or a solvent.

In particular, according to the first, twelfth, and thirteenth aspects of the present invention, a heat is generated by flowing an electric current to heat a discharge body, and a current is caused to flow through the heat generating element to generate heat. A heating circuit that heats the discharge body to a predetermined temperature for evaporating at least ammonium nitrate of the substances attached to the discharge body.By operating the heating circuit, it is possible to evaporate the ammonium nitrate attached to the discharge body. it can. Therefore, cleaning can be performed without manual intervention and without touching the discharge body.

Further, the power supply for the discharger and the heat generating circuit can be secured by providing a power supply circuit for supplying power to the discharger and the heat generating circuit.

Further, in the invention according to claim 10, since a timer for controlling a time for supplying power to the heat generating circuit is connected to the power supply circuit, the timer is operated to periodically discharge the discharger. Cleaning by heating.

Incidentally, the predetermined temperature is preferably in the range of 200 ° C. to 500 ° C., as in the third aspect of the present invention. That is, the ammonium nitrate attached to the discharge body can be evaporated at a temperature of 200 ° C. to 500 ° C.

More preferably, the discharge body is heated to 250 ° C. to 350 ° C. That is, the ammonium nitrate attached to the discharger is 2
Evaporation is started from about 00 ° C., but a temperature of more than 250 ° C. is preferable in order to shorten the evaporating time. Also, if the temperature is too high, the resin case or the like housing the discharge body may be deformed, or the discharge electrode, or
Terminal portions provided on the discharge body (reference numerals 25c and 26 in FIG. 3)
c, 27c) may be oxidized. Therefore, the predetermined temperature is more preferably in the range of 250 ° C. to 350 ° C.

According to the fifth aspect of the present invention, since the heating time control means for controlling the heating time of the heating element is provided, the heating time of the discharge body can be controlled. That is, the discharge body can be heated to the predetermined temperature and controlled so as not to exceed the predetermined temperature. For example, by rapidly heating and cooling the discharge body to the predetermined temperature, the discharge body can be effectively cleaned, and the influence of the heating on the resin case and the like can be minimized.

According to a sixth aspect of the present invention, the heating time of the heating element is controlled.
As described in the invention described in (1), this can be performed by a thermistor having a positive characteristic connected in series to the heating element. That is, since the thermistor having a positive characteristic has a property that the resistance value increases with an increase in temperature, when this is connected to the heating element, the current flowing through the heating element after a predetermined time has elapsed becomes extremely small.
Overheating of the discharge body can be prevented. Further, since the thermistor is used, the cost of the ozone generator can be reduced as compared with the case where a complicated timer circuit is provided.

Further, in the invention according to claim 7, since the induction electrode is connected to the high voltage side and the discharge electrode is connected to the ground side, water infiltrates into the case and the discharge electrode is connected. Even when is wet, the potential between the electrodes can be made the same as that of water. Therefore, even if water enters the case, electric shock can be prevented. in addition,
According to the seventh aspect of the present invention, the discharge electrode is partially covered with a protective film for preventing abrasion due to discharge, and the discharge electrode is partially exposed from one surface of the dielectric. Even if the dielectric is damaged and the high voltage part (for example, induction electrode or heating element) is exposed, the current flows into the exposed part of the discharge electrode,
No electric shock.

Further, in the invention according to claim 8, since the heat-resistant rubber is interposed in a portion where the discharge body and the case are in contact with each other, heat generated from the discharge body is transmitted to the resin case. The resin case can be prevented from being deteriorated or deformed by heating.

Further, the ozone generator according to any one of the first to ninth aspects is suitably used for the water purification apparatus according to the eleventh aspect. In other words, when the ozone generator is provided in the water purification device, there is a risk of electric shock if water enters the ozone generator when the ozone generator is disassembled and maintenance is performed. If the ozone generator according to any one of the items 9 is used, there is no need to disassemble the ozone generator, maintenance can be performed only by operating the heat generating circuit, and there is no risk of electric shock. In particular, the use of the ozone generating device according to claim 7 has the above-described effects, and is therefore preferable as the ozone generating device provided in the water purification device.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an ozone generator according to the present invention will be described.
One embodiment of a method for cleaning a water purification device and an ozone generation device will be described with reference to FIGS. FIG. 1 is an explanatory diagram showing a main configuration of the water purification device of the present embodiment, and FIG. 2 is an explanatory diagram showing a main configuration of an ozone generator provided in the water purification device shown in FIG. FIG. 3 is an explanatory diagram showing a configuration of a discharge body provided in the ozone generation device shown in FIG. 2, FIG. 3A is an explanatory diagram showing constituent members of the discharge body, and FIG. FIG. 4 is an explanatory view showing a back surface of a discharge body. FIG. 4 is a circuit diagram showing an electric circuit built in the ozone generator shown in FIG.

First, the main configuration of the water purification apparatus of the present embodiment will be described with reference to FIG. In the present embodiment, a water purification device used in a jacuzzi bath having a 24-hour bath function will be described as a representative water purification device. The water purification device 80 is provided with a suction unit 82 for sucking hot water in a bathtub 98.
2 has a built-in filter 84 for filtering impurities such as hair in hot water. Further, a bucket 86 for purifying the hot water sucked by the suction unit 82 is provided inside the housing 81. Inside the bucket 86, a porous material mainly composed of silicon dioxide (SiO ₂ ) is provided. A natural stone 86a and an activated carbon 86b are accommodated. Microorganisms that decompose impurities contained in hot water adhere to the natural stone 86a and the activated carbon 86b.

The hot water filtered by the bucket 86 is placed at the bottom of the bucket 86 at 42 ° C. to 44 ° C. suitable for bathing.
A heater 90 having a built-in ceramic heater for heating is connected. The heater 90 operates based on a temperature detected by a temperature sensor 88 provided at the bottom of the bucket 86. A circulation pump 92 for pumping hot water that has passed through the heater 90 is connected to the heater 90.
The circulating pump 92 is connected via a water flow sensor 94 to a jet nozzle 96 serving as an ozone intake means of the present invention. The water flow sensor 94 monitors the flow of the hot water discharged from the circulation pump 92. For example, when the circulation pump 92 cannot pump hot water in the bathtub 98 due to clogging of the filter 84, the circulation pump 92 is stopped. To protect the built-in motor.

An ozone generator 10 is provided inside the housing 81. The ozone generator 10 is connected to a first suction pipe 33 for sucking air. The first suction pipe 33 is opened to the atmosphere via a first solenoid valve 35. The ozone generator 10 is connected to a discharge pipe 34 for discharging the generated ozone to the jet nozzle 96, and a second suction pipe 36 for suctioning the atmosphere is connected to the discharge pipe 34. This second suction pipe 36
Are open to the atmosphere via the second solenoid valve 37.

Next, the main structure of the ozone generator 10 will be described with reference to FIG. The ozone generator 10 is provided with a rectangular parallelepiped case 11 made of resin. Inside the case 11, a circuit board 12 on which an electric circuit shown in FIG. 3 is mounted is housed. Case 11
The upper part 13 has four sockets 14, 15, 16, 1
7 are provided. These four sockets are electrically connected to an electric circuit mounted on the circuit board 12. A packing 18 formed in a frame shape with heat-resistant rubber is attached to a peripheral edge of an upper end of the case 11, and an ozone generating element 20 is fitted in a portion surrounded by the packing 18. On the back surface of the ozone generating element 20, four connection pins 20a, 20b, 20c, and 20d protrude.
To 17 are inserted.

At the periphery of the upper surface of the ozone generating element 20 fitted into the packing 18, a packing 30 formed in a frame shape with heat-resistant rubber is provided. The packing 30 is interposed on the upper surface of the case 11. Is covered with a lid 31. That is, since the ozone generating element 20 and the case 11 are not in direct contact with each other, the ozone generating element 2
The heat generated from 0 is transferred to the case 11 to prevent the case 11 from being altered or deformed. An opening 32 is formed on the lower surface of the lid 31, and a suction pipe 33 for inhaling the atmosphere and a discharge pipe 34 for discharging ozone are formed on both opposing end faces of the lid 31. . The suction pipe 33 and the discharge pipe 34 communicate with an opening 32 formed on the back surface of the lid 31. A mounting piece 19 for mounting the ozone generator 10 in the housing 81 of the water purification device 80 is formed below the end surface of the case 11, and a screw hole 19a is formed through the mounting piece 19. Have been. In the present embodiment, a fluoro rubber is used as the heat resistant rubber.

Next, the configuration of the ozone generating element 20 will be described with reference to FIG. As shown in FIG. 3A, the ozone generating element 20 includes a discharge body 21 having a first dielectric layer 25 and a second dielectric layer 26 formed in a thin plate shape, and a third dielectric layer 27. It is configured by lamination. A linear discharge electrode 25a is provided on the surface of the first dielectric layer 25, and most of the upper surface of the linear discharge electrode 25a is covered with a protective film 25b for preventing abrasion due to discharge. . Further, a part of the linear discharge electrode 25a that is not covered with the protective film 25b is exposed, and the exposed portion 25d is exposed.
Is formed. That is, even when the ozone generating element 20 is damaged in a state where water has entered the inside of the case 11 and the planar induction electrode 26a and the heater electrode 27a are exposed,
Since electric current flows into the exposed portion 25d, electric shock can be prevented. A planar induction electrode 26a is provided at a position on the surface of the second dielectric layer 26 opposite to the linear discharge electrode 25a. A heater electrode 27a, which is a heating element of the present invention, is provided at a position facing the discharge electrode 25a. Since the heater electrode 27a is provided in the center of the third dielectric layer 27, only the temperature of the linear discharge electrode 25a rises,
The temperature rise at the end of the case that is in contact with 8, 30 can be suppressed. In the present embodiment, the heater electrode 27
a is 8 m from the linear discharge electrode 25a in consideration of the heating efficiency.
m. In the present embodiment, the size of the ozone generating element 20 is 60 mm in width and 25 m in length.
m, thickness 2 mm.

One end of the linear discharge electrode 25a is electrically connected to a terminal 25c formed on the back surface of the third dielectric layer 27, and this terminal 25c is connected via a connection pin 20a (see FIG. 1). To the ground side of the electrical circuit. One end of the planar induction electrode 26a is electrically connected to the terminal 26c, and the terminal 26c is electrically connected to the high voltage side of the electric circuit via the connection pin 20c. Heater electrode 27
Both ends of “a” are connected to terminals 27c, 27c, and the terminals 27c, 27c are electrically connected to the heat generating circuit in the electric circuit via the connection pins 220b, 20d. In this embodiment, the linear discharge electrode 25a and the planar induction electrode 26a are formed of tungsten, and the protective film 25b is formed of a glaze material or a ceramic material.

Here, an experiment performed by the present inventors will be described with reference to FIG. 5 showing the result of the experiment. The present inventors conducted an experiment on how many times and how long the linear discharge electrode 25a was heated to remove ammonium nitrate attached to the linear discharge electrode. In this experiment, the relationship between the time required to remove ammonium nitrate generated on the linear discharge electrode 25a and the heating temperature when the linear discharge electrode was discharged in 70 _ppm ammonia gas for 3 hours was examined. Was. As a result, FIG.
As shown in the figure, when the linear discharge electrode was heated to 150 ° C., the ammonium nitrate generated on the linear discharge electrode was reduced to 30 ° C.
Removed in seconds and when heated to 500 ° C, removed in 2 seconds. That is, a long heating time is required to remove at a low heating temperature, and a high heating temperature is required to remove at a short time.

Therefore, the present inventors considered that the linear discharge electrode can be quickly cleaned, and the linear discharge electrode can be cleaned without affecting the resin case housing the discharge body. It was concluded that it was desirable to heat the electrodes at a minimum of 200 ° C. for 20 seconds and a maximum of 500 ° C. for 2 seconds. In order to perform cleaning more quickly and not to affect the resin case, the linear discharge electrode should be kept at a minimum of 250 ° C. for 10 minutes.
It has been found desirable to heat at up to 350 ° C. for a period of 6 seconds per second.

The material and the electrode pattern for forming the heater electrode 27a are set so that the temperature of the discharge body 21 reaches 250 ° C. to 350 ° C. after about 10 seconds when a 110 V AC power supply is used. I found it necessary. Therefore, the present inventors have proposed that a material obtained by mixing a ceramic with tungsten has a resistance value of 5 at room temperature.
A heater electrode 27a with 0 Ω and power consumption of 50 W was prepared, and the heater electrode 27a was used.

Next, the configuration of the electric circuit mounted on the circuit board 12 will be described with reference to FIG. Circuit board 12
The heat generating circuit 50 includes a heat generating circuit 50 that causes a current to flow through the heater electrode 27a to generate heat, and a power supply circuit 60 that supplies power to the ozone generating element 20 and the heat generating circuit 50. The heating circuit 50 includes a thermistor 51 having a positive characteristic, which is a heating time control unit of the present invention, connected in series to the heater electrode 27a, and a diode 52 connected in series between the thermistor 51 and the heater electrode 27a. . The power supply circuit 60
A diode bridge 61 for full-wave rectifying an alternating current supplied from an alternating current power supply 71;
62, which is switched by a current which is full-wave rectified by the current and smoothed by the electrolytic capacitor C1, and a transformer 63 which applies a voltage between the linear discharge electrode 25a and the planar induction electrode 26a by the switching of the transistor 62. Consists of Further, the linear discharge electrode 25a of the ozone generating element 20 is connected to a ground wire 64.
It is connected to the. Therefore, even when water enters the case 11 and the linear discharge electrode 25a is wet, no potential difference is generated between the linear discharge electrode 25a and water.
There is no risk of electric shock.

Next, a series of operations of the ozone generator 10 will be described. In this embodiment, the voltage applied to both electrodes is 5 KV _PP at 40 KHz. The resistance value of the thermistor 51 is 15Ω at room temperature, and the maximum value of the voltage of the AC power supply 71 is about 130V. When the timer 70 is turned on, the AC current supplied from the AC power supply 71 is full-wave rectified by the diode bridge 61,
The electrolytic capacitor C1 is charged by the full-wave rectified current, and when the charging of the electrolytic capacitor C1 is completed,
A base current flows to the base of the transistor 62 via the resistor R1, and the transistor 62 turns on. When the transistor 62 is turned on, a current flows to the secondary side of the transformer 63, and the linear discharge electrode 25 of the ozone generating element 20 is turned on.
a and a planar induction electrode 26a, a potential is generated, and discharge is performed from the linear discharge electrode 25a. By this discharge, oxygen in the atmosphere sucked into the opening 32 from the suction pipe 33 shown in FIG. 1 becomes ozone, is discharged from the discharge pipe 34, and is bubbled by the jet nozzle 96 into the hot water in the bathtub 98. Released.

When the timer 70 is turned on, the current supplied from the AC power supply 71 flows through the thermistor 51 to the diode 52, which is half-wave rectified by the diode 52 to apply a voltage of about 65 V to the heater electrode 27a. As a result, the heater electrode 27a generates heat. This heater electrode 27
a is about 1 A (I = 65).
V / (15Ω + 50Ω) = 1A). Therefore, the magnitude of the power consumption P by the heater electrode 27a is about 50 W (P = 1 ² × 50). Then, when the current continues to flow, the temperature of the discharge body 21 reaches 250 ° C. to 350 ° C. after about 10 seconds, and the ammonium nitrate molecules attached to the linear discharge electrode 25a are scattered. On the other hand, the resistance value of the thermistor 51 becomes as high as 2.5 KΩ due to the temperature rise, so that the current flowing through the thermistor 51 becomes extremely small, and the heating of the heater electrode 27a stops. In the present embodiment, the timer 70 is for performing heating cleaning of the linear discharge electrode 25a,
The ON-OFF operation is performed four times. Further, in order to perform heating cleaning, the power supply is turned off, and then the temperature of the thermistor 51 is lowered to a sufficiently low temperature.
Is sufficiently small (for example, about 10
Minutes) and then turn on.

As described above, according to the ozone generator of this embodiment and the cleaning method thereof, the heater electrode 2
By heating the ozone generating element 20 by 7a, ammonium nitrate molecules adhering to the linear discharge electrode 25a can be scattered and removed. Therefore, there is no need for manual maintenance such as disassembling the ozone generator and wiping the discharge body with water or a solvent as in the related art. In addition, since the electric shock prevention measures are taken, maintenance is easy. In particular, the water purification device is in an environment where electric shock is likely to occur due to intrusion of water during use. However, by using the ozone generator of the above embodiment, it is possible to improve the environment in which electric shock does not occur. The ozone generator of the present invention can be used for an ozone water producing device, and the water purifier of the present invention can be used as a water purifier for a pond, a water tank, a pool, or the like.

[0045]

As described above, according to the present invention, an ozone generator capable of easily removing at least ammonium nitrate among substances adhering to a discharge body without human intervention and without touching the discharge body. Thus, a cleaning method for the purification device and the ozone generation device can be realized.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a main configuration of a water purification device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a main configuration of the ozone generator according to the embodiment of the present invention.

3 is an explanatory diagram showing a configuration of a discharge body provided in the ozone generator shown in FIG. 2, FIG. 3A is an explanatory diagram showing constituent members of the discharge body, and FIG. FIG. 4 is an explanatory view showing a back surface of a discharge body.

FIG. 4 is a circuit diagram showing an electric circuit built in the ozone generator shown in FIG.

FIG. 5 is a table showing experimental results.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ozone generator 11 Case 12 Circuit board 13 Upper part 14-17 Socket 18, 30 Packing 20 Discharge body 25 First dielectric layer 25a Linear discharge electrode 25b Protective film 25d Exposed part 26 Second dielectric layer 26a Planar induction electrode 27 third dielectric layer 27a heater electrode (heating element) 31 lid 32 opening 33 suction pipe 34 discharge pipe 50 heating circuit 51 thermistor (heating time control means) 60 power supply circuit 70 timer 80 water purification device 92 circulation pump 96 jet nozzle (Ozone intake means) 98 Bathtub

Claims (13)

[Claims] 1. An ozone generator having a discharge body that generates ozone by discharging, wherein the ozone generation apparatus generates heat when a current flows, heats the discharge body, and causes a current to flow through the heat generation element to generate heat. An ozone generator, comprising: a heat generating circuit for heating the discharge body to a predetermined temperature at which at least molecules of ammonium nitrate among substances adhered to the discharge body are scattered. 2. An ozone generator for generating ozone by discharge, comprising: a dielectric formed of a ceramic material; a discharge electrode provided on one surface of the dielectric; and a space facing the discharge electrode. And a discharge body having an induction electrode provided in the dielectric, and provided on the other surface of the dielectric opposite to the induction electrode, generates heat by flowing a current, A heating element that heats the discharge electrode; and a heating circuit that heats the heating element to a predetermined temperature at which at least ammonium nitrate molecules of the substances attached to the discharge element are scattered by causing an electric current to flow through the heating element. An ozone generator characterized by comprising: 3. The predetermined temperature is 200 ° C. to 5 ° C.
The ozone generator according to claim 1 or 2, wherein the temperature is 00 ° C. 4. The predetermined temperature is from 250 ° C. to 3 ° C.
The ozone generator according to claim 1 or 2, wherein the temperature is 50 ° C. 5. The ozone generator according to claim 1, further comprising a heat generation time control means for controlling a heat generation time of said heat generating element. 6. The ozone generator according to claim 5, wherein said heat generation time control means is a thermistor having a positive characteristic connected in series to said heat generating element. 7. The discharge body is housed in a resin case, the induction electrode is connected to a high voltage side, the discharge electrode is connected to a ground side, and wear caused by discharge is reduced. 7. The semiconductor device according to claim 2, wherein a part of the dielectric is covered with a protective film for prevention, and a part thereof is exposed from one surface of the dielectric. The ozone generator according to one. 8. The ozone generator according to claim 1, wherein the discharge body is housed in the case via a heat-resistant rubber. 9. The ozone generator according to claim 1, further comprising a power supply circuit for supplying power to the discharge body and the heat generation circuit. 10. The ozone generator according to claim 9, wherein a timer for controlling a time for supplying power to the heating circuit is connected to the power supply circuit. 11. The method according to claim 1, wherein
The ozone generator according to any one of the above, a filtration device for filtering water, and ozone intake means for taking ozone generated from the ozone generation device into the water filtered by the filtration device. Characterized water purification device. 12. An ozone generating apparatus having a discharge element for generating ozone by discharging, a heat generator for heating the discharge element, and a heat generation circuit for applying a current to the heat element to generate heat, and the discharge element is controlled to a predetermined temperature. Cleaning the ozone generator by heating to a temperature of at least one of the substances attached to the discharger to evaporate at least ammonium nitrate. 13. A filter device for filtering water, an ozone take-in means for taking ozone generated from the ozone generator into water filtered by the filter device, and a discharger for generating ozone by discharging. A method for cleaning a water purification device provided with an ozone generator, wherein a heating element for heating the discharge element, and a heat generation circuit for causing a current to flow through the heating element to generate heat are used to bring the discharge element to a predetermined temperature. A method for cleaning a water purification device, comprising heating to evaporate at least ammonium nitrate among substances adhered to a discharge body.