JP2002346579A - Ozone sterilizing water making apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ozone sterilizing water making apparatus capable of supplying ozone constant in concentration to water to be sterilized. SOLUTION: This ozone sterilizing water making apparatus is equipped with a water tank 2, a circulating pump 3 for circulating the water of the water tank 2, a motor 4 for driving the circulating pump 3 and a jet nozzle 5 connected to the circulating pump 3. The jet nozzle 5 is connected to the circulating pump 3 by a circulating water channel 6, and the jet nozzle 5 and the motor 4 are connected by a ventilation pipe 7. When the circulating pump 3 is driven by rotating the motor 4, negative pressure is generated in the jet nozzle 5 and the air in the motor 4 is introduced into the jet nozzle 5. The motor 4 is a corona motor for generating ozone by corona discharge. When ozone-containing air is introduced into the jet nozzle 5, ozone comes into contact with water becoming jet streams in the jet nozzle 5 to sterilize and deodorize the water in the water tank 2 by ozone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone sterilizing water producing apparatus for producing water sterilized by ozone.

[0002]

2. Description of the Related Art Conventionally, in order to obtain water sterilized and deodorized by ozone, a single ozone generator and a water circulation pump are combined to mix ozone with circulating water. As such a conventional ozone generator, a discharge electrode for generating a negative corona discharge is provided on a ceramic substrate, a corona discharge is performed from the discharge electrode toward an opposite electrode, and ozone generated at the time of the corona discharge is generated. What is collected is used.

In such a conventional ozone generator, corona discharge is performed from the surface of the discharge electrode.
If the humidity in the air is high or if the electrode surface is contaminated by dust, the insulation properties on the surface of the discharge electrode will be reduced and leakage current will flow, and a good corona discharge will not be formed. In some cases, the corona discharge may stop. When the corona discharge is stopped as described above, ozone is not generated, so that there is a disadvantage that water cannot be sterilized.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to improve an apparatus for producing ozone-sterilized water. More specifically, in order to solve the above-mentioned inconvenience, it is possible to supply a constant concentration of ozone to water. An object of the present invention is to provide an ozone sterilizing water producing device.

[0005]

To achieve the above object, an ozone sterilizing water producing apparatus according to the present invention comprises a water storage tank for storing water, and a circulation pump for circulating the water in the water storage tank through a circulation channel. A motor for driving the circulating pump,
The motor is a corona motor that generates a corona discharge between a stator having a discharge electrode and a rotor having a dielectric to rotate the rotor, and the motor is covered by a case. Is provided with an inlet through which air is introduced from the outside and an outlet through which air is led to the outside, a vent pipe connecting the outlet and the circulating channel, and air in the motor to the circulating channel. And an air supply unit for supplying outside air into the motor from the inlet when the motor is operating, and the air including ozone generated by corona discharge in the motor. Supply to the circulation channel through the outlet and the ventilation pipe,
Water circulated by the circulation pump and air containing ozone are mixed.

According to the apparatus for producing ozone sterilized water of the present invention,
The water in the water storage tank is circulated by the circulation pump, and the water circulated by the air supply means is mixed with air containing ozone to sterilize the water. In the present invention, the corona motor is used as a motor of a circulation pump that circulates water, and sterilization of water is performed by ozone generated by the operation of the corona motor. Since the amount of ozone generated in this corona motor is proportional to the number of rotations of the motor, the amount of ozone generated increases as the number of rotations of the motor increases, and the amount of water circulated by the circulation pump also increases. More. Conversely, when the rotation speed of the motor decreases, the amount of generated ozone decreases, and the amount of water circulated by the circulation pump also decreases.

As described above, according to the apparatus for producing ozone sterilized water of the present invention, ozone is generated according to the rotation speed of the corona motor used in the circulating pump, that is, the amount of circulated water. A constant concentration of ozone can be supplied to water. Therefore, even if the amount of circulated water is large, sterilization with ozone can be reliably performed. In the present invention, since a corona motor is used as a means for generating ozone, an airflow is generated between the rotor and the stator while the rotor is rotating. When the motor is operating, outside air is introduced from the inlet and is drawn out from the outlet. Therefore, even when the humidity is high, dew condensation hardly occurs on the rotor and the stator, and dust and the like hardly adhere, so that there is no possibility that the corona discharge stops. Further, even if the circulating pump breaks down, the generation of ozone by the motor is stopped, so that there is no possibility that the ozone concentration in the case of the motor rises to damage the case and the like.

In the apparatus for producing sterilized ozone water according to the present invention, an injection nozzle for injecting water discharged from the circulation pump is provided in a circulation channel downstream of the circulation pump and between the water storage tank. Preferably, the injection nozzle is connected to the outlet through a ventilation pipe, and the air supplied by the air supply means mixes the water jetted from the injection nozzle into a jet and the air containing ozone. in this way,
When the air containing the ozone is mixed with the injected water,
Since the area where ozone comes into contact with water is increased, sterilization of circulated water with ozone can be performed efficiently.

In the apparatus for producing ozone sterilized water according to the present invention, the injection nozzle includes a nozzle for injecting water,
A negative pressure chamber provided on the downstream side of the nozzle portion and generating a negative pressure by jetting water; connecting the ventilation pipe to the negative pressure chamber; and providing the air supply means with a negative pressure generated in the negative pressure chamber. It is preferable that the air in the circulating pump is supplied to the circulating water channel by means of When water is injected from the nozzle portion of the injection nozzle, a negative pressure is generated in the negative pressure chamber. In the negative pressure chamber, the negative pressure increases as the amount of water to be injected increases, and the negative pressure decreases as the amount of water to be injected decreases. Therefore, by using the negative pressure of the negative pressure chamber when supplying air containing ozone into the circulation channel, ozone can be supplied in accordance with the amount of circulated water. Further, since no means such as a blower fan is required, the configuration of the apparatus can be simplified.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an apparatus for producing ozone sterilized water according to the present invention will be described with reference to FIGS. FIG. 1 is an explanatory view showing an example of an embodiment of an ozone sterilized water producing apparatus according to the present invention, FIG. 2 is an explanatory sectional view showing an internal structure of a disk-type corona motor, and FIG. 3 is an exploded view showing a configuration of the disk-type corona motor. FIG. 4 is an explanatory view showing a configuration of a fixed substrate which is a component of a disk-type corona motor;
FIG. 5 is an explanatory diagram showing the internal structure of the injection pump, FIG. 6 is an explanatory sectional view showing the internal structure of the cylindrical corona motor, and FIG. 7 is an explanatory diagram showing the configuration of the cylindrical corona motor.

First, an ozone sterilizing water producing apparatus 1 using a disk-type corona motor will be described with reference to FIGS. As shown in FIG. 1, the apparatus for producing ozone sterilized water according to the present embodiment includes a water tank 2, a circulation pump 3 for circulating water in the water tank 2, a motor 4 for driving the circulation pump 3, and a circulation pump 3. And an ejection nozzle 5 connected to the The water storage tank 2, the circulation pump 3 and the injection nozzle 5 are connected by a circulation water channel 6, and the injection nozzle 5 and the motor 4 are connected by a ventilation pipe 7. Further, in the present embodiment, as shown in FIGS. 2 to 4, a disk-type corona motor 4a is used as the motor 4 for driving the circulation pump 3.

As shown in FIG. 2, the motor 4 according to the present embodiment includes a case 8, a fixed substrate (stator) 9 and a rotor 10 provided in the case 8, and 10 is fixed to a rotating shaft 12 by a fixing member 11. The rotating shaft 12 is rotatably supported on the case 8 by a bearing 13. The case 8 is provided with an inlet 14 through which outside air is introduced, and an outlet 15 through which air inside the case 8 is led out. The outlet 15 is connected to the injection nozzle 5 through the ventilation pipe 7. I have.

As shown in FIG. 3, the rotor 10 of the motor 4 includes a disk 17 having a conductive layer 16 on one surface, and an insulating film 18 covering both surfaces of the disk 17. I have. The circular plate 17 is formed by processing a plate-shaped insulator into a circular shape, and has a communication hole 19 at the center for communicating the front and back. The conductive layer 16 is formed in a circular shape by using a metal plate, a metal foil, or a conductive paint, and occupies most of the area of one surface of the disk 17. The conductive layer 16 has a function of concentrating electric charges during corona discharge. A communication hole 19 is provided in the center of the rotor 10, and the fixing member 11 and the rotating shaft 12 are attached to the communication hole 19.

The fixed substrate 9 of the motor 4 is a printed substrate of a glass cloth base epoxy resin, a so-called glass epoxy resin, and has a positive discharge electrode to which a positive DC voltage is applied as a pattern as shown in FIG. 20 and a negative discharge electrode 21 to which a negative DC voltage is applied. The positive discharge electrode 20 and the negative discharge electrode 21 are connected to a power supply device (not shown) for applying a positive and negative DC voltage via terminal portions 20a and 21a, respectively. In FIG. 4, a slit 22 is provided along one side of each electrode, and an edge portion is formed in each electrode by the slit 22 so that corona discharge is effectively generated.

As shown in FIG. 5, the injection nozzle 5 has a nozzle portion 23 and a negative pressure chamber 24, and the ventilation pipe 7 is connected to the negative pressure chamber 24. In the injection nozzle 5, when water is injected from the nozzle portion 23, the inside of the negative pressure chamber 24 becomes a negative pressure, and the air containing ozone in the case 8 of the motor 4 passes through the ventilation pipe 7 into the negative pressure chamber 24. It is designed to be sucked. In the present embodiment, a supply unit that supplies air containing ozone into the circulation water channel 6 is configured by the injection nozzle 5 and the ventilation pipe 7.

Next, the operation of the apparatus for producing ozone sterilized water 1 of this embodiment will be described. First, when the motor 4 is energized and a positive DC voltage is applied to the positive discharge electrode 20 of the fixed substrate 9 and a negative DC voltage is applied to the negative discharge electrode 21, each of the discharge electrodes 20 and 21 rotates. Corona discharge is performed with the child 10. As a result, the insulating film 18 on the surface of the rotor 10 is charged to the same polarity as the opposing discharge electrodes 20 and 21, so that the repulsive force between the opposing discharge electrodes and the adjacent discharge electrodes having different polarities. The rotor 10 is rotated by the suction force in between. The rotation of the rotor 10 is transmitted to the circulating pump 3 via the rotating shaft 12 and the circulating pump 3
Is driven.

When the circulation pump 3 is driven, the circulation water passage 6
The water inside is circulated by the circulation pump 3. Circulation pump 3
Is discharged from the spray nozzle 5 through the circulation channel 6.
Supplied to In the injection nozzle 5, as shown in FIG. 5, water is injected from the nozzle portion 23 to increase the surface area. At this time, since a negative pressure is generated in the negative pressure chamber 24, the air in the case 8 of the motor 4 is introduced into the injection nozzle 5 through the ventilation pipe 7. In the case 8 of the motor 4, since ozone is generated by corona discharge performed between the negative discharge electrode 21 and the rotor 10, the ozone is introduced into the negative pressure chamber 24 of the injection nozzle 5. The air contains this ozone. Outside air is introduced into the case 8 of the motor 4 from the inlet 14.

In the negative pressure chamber 24 of the injection nozzle 5,
Since the water in the water storage tank 2 circulated through the circulating water channel 6 comes into contact with air containing ozone in a jet state, sterilization and deodorization of water by ozone are efficiently performed. Then, the water sterilized by the ozone is returned to the water storage tank 2 through the circulation water channel 6. Thereby, the water in the water storage tank 2 is sterilized and deodorized by the ozone.

Next, the apparatus 31 for producing sterilized ozone water using the cylindrical corona motor 4b will be described with reference to FIGS. Ozone sterilized water producing apparatus 31 of the present embodiment
Uses a cylindrical corona motor 4b for the motor 4, as shown in FIGS. Note that other configurations are the same as those of the above-described embodiment, and thus the same reference numerals are assigned and detailed description is omitted.

The motor 4 in the present embodiment has a case 8
And a cylindrical rotating cylinder (rotor) 3 rotating in the case 8
2 and a plurality of fixed electrodes (stators) 33 arranged around the rotary cylinder 32.

As shown in FIG. 6, a rotary cylinder 32 of the motor 4 has a hollow cylinder 34 formed of an insulator such as ethylene resin, and a cylinder formed of a metal plate, a metal foil, or a conductive paint. A conductive layer 34a attached to the inner peripheral surface of the body 34. The rotating shaft 32 is provided at the center of the rotating cylinder 32, and the rotating shaft 12 is
3 rotatably supports the case 8.

The fixed electrode 33 is formed in the shape of a knife edge as shown in FIG. 7, and is disposed with the edge direction inclined with respect to the outer peripheral surface of the rotary cylinder 32. The fixed electrodes 33 are arranged such that positive discharge electrodes 35 and negative discharge electrodes 36 alternately surround the outer peripheral surface of the rotary cylinder 32. Further, the positive discharge electrode 35 and the negative discharge electrode 36
Each is connected to a power supply device (not shown) for applying a positive or negative DC voltage.

Next, the operation of the apparatus for producing sterilized ozone water 31 of the present embodiment will be described. First, when the motor 4 is energized and a positive DC voltage is applied to the positive discharge electrode 35 of the fixed electrode 33 and a negative DC voltage is applied to the negative discharge electrode 36, each of the discharge electrodes 35 and 36 rotates. Corona discharge is carried out between the cylinder 32. Thereby, the cylindrical body 3 of the rotary cylinder 32
4 is charged to the same polarity as each of the locally opposed discharge electrodes 35 and 36, so that the repulsive force between the opposed discharge electrodes and the attraction force between the adjacent discharge electrodes of different polarities. As a result, the rotary cylinder 32 rotates. The rotation of the rotary cylinder 32 is transmitted to the circulation pump 3 via the rotation shaft 12, and the circulation pump 3 is driven.

As described above, the motor 4 operates and the rotating cylinder 3
2 rotates, ozone is generated in the case 8 by corona discharge, and the negative pressure generated in the negative pressure chamber 24 of the injection nozzle 5 causes the case 8 to enter the case 8 similarly to the above embodiment.
The air containing ozone is supplied, and the water in the water storage tank 2 circulating in the circulation channel 6 is sterilized and deodorized.

In each of the ozone sterilizing water producing apparatuses 1 and 31 of the above embodiments, a corona motor is used as the motor 4 for driving the circulating pump 3, and the ozone generated from the corona motor causes the water in the water tank 2. Sterilizing and deodorizing water. The amount of ozone generated by the corona motor is proportional to the DC voltage applied to the discharge electrode. Further, the amount of water circulated by the circulation pump 3 is also proportional to the DC voltage applied to the discharge electrode. Therefore, as the applied DC voltage increases, the amount of circulated water increases and the amount of ozone generated also increases. Conversely, when the applied DC voltage decreases, the amount of circulated water decreases and the amount of ozone decreases.

As described above, in the ozone sterilizing water producing apparatus 1 of the above embodiment, ozone having a substantially constant concentration can be supplied to the circulated water. However, sterilization with ozone can be performed reliably. Conversely, when the amount of circulated water is small, the amount of generated ozone is small, so that the amount of generated ozone is excessive, and there is no risk of inconvenience such as deterioration of members that come into contact with the ozone.

In each of the above embodiments, the air in the case 8 is introduced into the injection nozzle 5 by the negative pressure generated in the negative pressure chamber 24 of the injection nozzle 5 as the air supply means. The rotor 1 of the motor 4 is not limited to
A fin may be provided on the rotating cylinder 32 or the rotating cylinder 32 to generate air by the rotation of the rotor 10 or the rotating cylinder 32 to supply air containing ozone in the case 8 of the motor 4 to the injection nozzle 5.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of an embodiment of an ozone sterilizing water producing apparatus according to the present invention.

FIG. 2 is an explanatory sectional view showing the internal structure of a disk-type corona motor.

FIG. 3 is an exploded view showing a configuration of a disk-type corona motor.

FIG. 4 is an explanatory view showing a configuration of a fixed substrate which is a component of the disk-type corona motor.

FIG. 5 is an explanatory view showing the internal structure of the injection pump.

FIG. 6 is an explanatory sectional view showing the internal structure of a cylindrical corona motor.

FIG. 7 is an explanatory diagram showing a configuration of a cylindrical corona motor.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Ozone sterilization water production apparatus, 2 ... Water storage tank, 3 ... Circulation pump, 4 ... Corona motor, 4a ... Disk type corona motor, 4b ... Cylindrical corona motor, 5 ... Injection nozzle (air supply means), 6 ... Circulation Water channel, 7 ... vent pipe (air supply means), 8 ...
Case, 14 ... inlet, 15 ... outlet.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) C02F 1/50 540 C02F 1/50 540B 550 550C 550D 550H (72) Inventor Kenkichi Izumi 1 Minamikugahara, Ota-ku, Tokyo -10-4 F term (reference) 4D050 AA02 AB06 BB02 BD03 BD04 BD06 4G035 AA02 AB20 AE13 4G042 CE01

Claims (3)

[Claims] 1. A water storage tank for storing water, a circulation pump for circulating water in the water storage tank through a circulation water channel, and a motor for driving the circulation pump, wherein the motor includes a stator having a discharge electrode. A corona motor that generates a corona discharge between the rotor and a rotor having a dielectric to rotate the rotor. The motor is covered by a case, and the case has an inlet through which air is introduced from outside. And an outlet through which air is drawn out to the outside, comprising: a ventilation pipe connecting the outlet and the circulation passage; and an air supply means for supplying air in the motor to the circulation passage. The air supply means introduces outside air from the introduction port into the motor when the motor operates, and supplies air containing ozone generated by corona discharge in the motor through the outlet port and the ventilation pipe. Circulating water Is supplied to the ozone sterilizing water producing apparatus, characterized in that for mixing with air containing water and ozone is circulated by the circulation pump. 2. An injection nozzle for injecting water discharged from the circulating pump is provided in a circulating water passage between the circulating pump and the water storage tank downstream of the circulating pump. 2. The ozone sterilized water production according to claim 1, wherein the air supply means is connected to the outlet, and mixes the water jetted and jetted from the jet nozzle with the air containing ozone. 3. apparatus. 3. The injection nozzle has a nozzle portion for injecting water, and a negative pressure chamber provided downstream of the nozzle portion and generating a negative pressure by the injection of water, wherein the vent pipe is provided in the negative pressure chamber. The ozone sterilizing water producing apparatus according to claim 2, wherein the air supply unit supplies the air in the circulation pump to the circulation water channel by a negative pressure generated in the negative pressure chamber.