JPH02157091A - Apparatus for treating water with ozone - Google Patents

Abstract

PURPOSE:To provide a small-sized simple ozone treatment apparatus by providing the discharge electrode of an ozone generating body to the outer peripheral surface of an insulating substrate and connecting the cooling water passage in the insulating substrate to the water flow passage in the ozone injector in series so that the water itself flowing through the water flow passage in the ozone injector is used as the cooling water of an ozone generator. CONSTITUTION:An ozone generator 35 is constituted of an ozone generating body 11, an ozone generator body 16 and a cover 25 forming an ozone generat ing space between the ozone generating body 11 and the cover 25. When voltage is applied between the discharge electrode 13 and dielectric electrode 14 of the ozone generating body 11, ozone is generated. Ozone-containing gas is inject ed in the flow water flowing through a venturi pipe part 19 and ozone water is discharged from a nozzle 21. By this constitution, it is unnecessary to separate ly provide a cooling apparatus and this apparatus can be miniaturized.

Description

[Detailed Description of the Invention] [Industrial Application Fields] The present invention aims to sterilize and deodorize water by injecting ozone into running water, and to continuously supply water in which ozone has dissolved (ozone water). The present invention relates to an ozone treatment device for water used for production and other purposes.

[Prior Art] An ozone treatment device used to produce ozonated water by injecting ozone into water includes an ozone generator 1 and a high voltage source that supplies voltage to the ozone generator 1, as shown in FIG. A voltage power supply 2, a near compressor (or oxygen cylinder) 3, etc. that supplies air to the ozone generator 1, an ozone injector 5 connected to the ozone generator 1 via a check valve 4, and cold water 7. and a cooling fan 8 to cool the ozone generator 1.
] device 6. The ozone injection "a5" is equipped with a pendulum tube, into which flowing water 9 is supplied, and ozone supplied from the ozone generator 1 through the check valve 4 is injected into the interior from the narrowed part of the pendulum tube.

The ozone generator 1 has an insulating substrate provided with an induction electrode and a discharge electrode, and when a high voltage is applied between the induction electrode and the discharge electrode, a discharge is generated along the discharge electrode. When oxygen in the raw material gas supplied from the compressor 3 comes into contact with the discharge of the ozone generator 1, it becomes ozone. This ozone is supplied through the check valve 4 to the narrowed part of the pendicollie tube of the ozone injector 5, and is injected into the flowing water. As a result, ozonated water 10 flows out from the Venturi tube.

The ossin generator 1 constantly generates heat due to electric discharge.

If the temperature of the ozone generator becomes too high, the ozone generated will be destroyed, so it is necessary to constantly cool the ozone generator 1 with the cooling device 6.

[Problems to be Solved by the Invention] Ozonated water is effective for disinfecting hands, cooking utensils, etc. In order to use ozonated water for these purposes, it is conceivable to store separately manufactured ozonated water in a tank, but since ozone dissolved in water constantly self-attenuates, it is not recommended to store ozonated water. It's the economy.

Therefore, it would be ideal to connect an ozone treatment device to each water faucet to produce and use ozonated water when needed.Therefore, a small and simple ozone treatment device is desired. .

However, in the conventional ozone treatment device, the ozone generator 1, check valve 4, and ozone injector 5 are installed separately and connected by piping, and furthermore, the ozone generator 1, the check valve 4, and the ozone injector 5 are connected by piping, and the ozone generator 1, the check valve 4, and the ozone injector 5 are connected to each other by piping. Since piping for supplying the cooling water 7 to the cold ffl device 6 was also required, the device inevitably became large-scale, and it was not possible to use it simply.

An object of the present invention is to provide a water ozone treatment device that can be miniaturized and easily used.

[Means for Solving the Problems] The present invention provides an ozone generator using an ozone generator in which a discharge electrode and an induction electrode are provided on a cylindrical insulating base, and an ozone generator having a water flow passage inside. The present invention relates to a water ozone treatment device equipped with an ozone injector that injects ozone obtained from an ozone generator into water flowing therethrough.

In the present invention, the discharge electrode of the ozone generator is provided on the outer peripheral surface of the insulating base, and the inside of the insulating base is used as a cooling water passage,
The cooling water passage in the insulating base and the water passage in the ozone injector were connected in series so that the water flowing through the water passage in the ozone injector was used as cooling water for the ozone generator.

In a preferred configuration of the present invention, the ozone injector includes:
Using a venturi pipe section that constitutes the water flow passage and an ozone supply passage that supplies ozone obtained from the ozone generator to the narrowed part of the venturi pipe section,
A check valve is installed in the ozone supply passageway to prevent ozone from flowing back.

In addition, the cooling water passage inside the insulating base of the ozone generator is directly connected to the Venturi tube section, and the ozone supply passage in the ozone injector is directly connected to the ozone generation space provided so as to take in the outer periphery of the insulating base of the ozone generator. do.

[Function] As mentioned above, the inside of the insulating base of the ozone generator is used as a cooling water passage, and the cooling water passage and the inside of the ozone injector are set so that the water flowing in the water passage itself serves as cooling water for the ozone generator. By connecting the cooling water passage to the water passage, a special cooling device is not required, and cooling water piping can be omitted, and the structure can be simplified.

In addition, a backflow prevention valve is installed in the middle of the ozone supply passage in the ozone injector, and the inner space of the insulating base of the ozone generator is directly connected to the venturi tube part of the ozone injector, and the ozone supply passage in the ozone injector is connected to the ozone supply passage in the ozone injector. When connected directly to the ozone generation space of the ozone generator, piping between the ozone generator and the ozone injector can be omitted and the entire structure can be made compact.
A simple water ozone treatment device that can be used by connecting to a water faucet can be obtained.

[Example 1 The present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show embodiments of the present invention, and in these figures 11 is an ozone generator. This ozone generator includes a cylindrical insulating base 12 made of a dielectric material such as alumina ceramic, a discharge electrode 13 provided on the outer peripheral surface of the insulating base, and an inner peripheral surface of the insulating base 12 or a wall of the insulating base. The inner side of the insulating base 14 serves as a cooling water passage 15. One end of the insulating base 12 is inserted into a groove 16a provided in the end face on one end side of the ozone generator body 16, thereby connecting the cooling water passage 15 and the running water passage 1 provided inside the body 16.
7 is connected. The connection between the body 16 and the insulating base 12 is made liquid-tight by appropriate means such as packing. The (t!! end of the body 16 has a threaded part 1 connected to the water faucet directly or through an appropriate attachment
6b is formed.

Reference numeral 18 denotes an ozone injector, which includes an injector body 20 having a Venturi tube section 19 therein;
A nozzle 21 forming an ozone water outlet is connected to the tip of the body 20 by screw connection.

A tubular portion 20a is formed at the rear end of the syringe body 20, and a flange 20b is provided at the intermediate portion. The other end of the insulating base 12 of the ozone generator 11 is inserted into the groove 20c provided on the end face of the body 20 located inside the tubular part 20a, thereby connecting the cooling water passage 15 inside the insulating base 12 with the Venturi tube. It is directly connected to the water flow passage 23 in the section 19. The connection portion between the insulating base 12 and the body 20 is made liquid-tight by an appropriate means such as a packing.

The ozone generator body 16, the insulating base 12, and the injector body 20 are arranged so as to share their respective central axes, and the flange 16b provided at one end of the body 16 and the tubular portion 2Qa at the rear end of the body 20. A cylindrical cover 25 is installed over the removable [■ function]. The cover 25 may be attached to the bodies 16 and 20 by a fitting structure, or may be attached to the bodies 16 and 20 by screw connection. By removing this cover 25,
The discharge electrode of the ozone generator 11 can be cleaned.

A flange 20b is provided at an intermediate portion of the injector body 20, and a source gas receiving hole 20d extending radially inside the flange is opened on the outer peripheral surface of the flange 20b. Inside the body 20, there is a raw material gas flow hole 20 extending in the axial direction.
e is provided, one end of which communicates with the raw material gas receiving hole 20d, and the other end communicates with the ozone generation space 26 between the cover 25 and the ozone generator 11 through the inner space of the tubular portion 20a. It's communicating.

Also provided within the injector body 20 is an ozone supply passage 2Of through which ozone-containing gas flows, located at a position symmetrical to the source gas distribution hole 20e.

One end of the ozone supply passage 2Of is connected to the tubular portion 20 of the body 20.
It communicates with the ozone generation space 26 through the inner space of the body 20, and the other end of the valve mount is provided to extend in the radial direction inside the flange portion 20b of the body 20, and the other end communicates with the hole 20g.

One end of the valve mounting hole 20q opens to the outer peripheral surface of the flange portion 20b, and the other end communicates with an ozone gas injection hole 20h that communicates with the narrowed portion 19a at the center of one Venturi tube portion. A spherical valve body 28 is inserted into the hole 2OC1, and the valve is installed by attaching the valve body 28 to the screw provided in the hole 20q.
8 are screwed together. The valve is installed with two bolts (the opening of the hole 20Q is closed, and the ozone supply passage 2Of and the valve body 2 are installed in this bolt 29).
A membrane body 30 is provided between the tip of the bolt and the valve body 28, and the valve body 28, the bolt 29, and the membrane body 30 communicate with each other. A non-return valve is configured.

A screw is provided on the inner periphery of the raw material gas receiving hole 20d, and a cap 31 for connecting a pipe to a raw material gas supply source such as a compressor or an oxygen cylinder is attached to this screw.

The flange portion 20b of the body 20 also has a power supply terminal 32.
and 33 are attached, and these terminals are connected to the discharge electrode 13 and dielectric S electrode 14 of the ozone generator 11 via a power supply wire (not shown) provided in the body 20.

In this embodiment, an ozone generator 35 is constituted by an ozone generator 11, an ozone generator body 16, and a cover 25 that forms an ozone generation space 26 between the ozone generator 11. .

When using the above ozone treatment device, the ozone generator body 16 is connected to a water faucet directly or via a suitable attachment, and a high voltage hO is applied to the terminals 32 and 33. Then, the water faucet is opened to supply running water into the running water passage 17, and at the same time, the raw material gas receiving hole 2
A raw material gas (air or oxygen) is supplied to 0d.

When a voltage is applied between the discharge electrode 13 and the induction electrode 14 of the ozone generator 11, a silent discharge occurs along the discharge electrode 13. When oxygen molecules in the raw material gas supplied into the ozone gas generation space 26 come into contact with this discharge, they become oxygen atoms, and the oxygen atoms react with the oxygen molecules to generate ozone. The gas containing ozone enters the ozone supply passage 2Of around the ozone generator 11, passes through the check valve, and is injected into the flowing water flowing in the Venturi pipe section 19 from the ozone gas injection hole 20h. In addition, ozonated water flows out from the J:renozzle 21.

As described above, if the structure is such that the inner space of the insulating base of the ozone generator 11 is used as a cooling water passage and this cooling water passage 15 is connected to the flowing water passage 23 in the Venturi tube section 19 of the ozone injector 18, the cooling FD1 device Since there is no need to separately provide cooling water piping, the configuration of the device can be simplified and the device can be made smaller.

In particular, as in the above embodiment, the cooling water passage inside the insulating base of the ozone generator 11 is connected to the bench 3. If the structure is such that the ozone supply passage 20f in the ozone injector is directly connected to the water flow passage inside the pipe section, and the ozone supply passage 20f in the ozone injector is directly connected to the ozone generation space 26 of the ozone generator, there will be a gap between the ozone generator and the ozone injector. Since the piping can be omitted, the entire structure can be made compact.

In order to increase the amount of ozone generated, it is necessary to widen the surface on which discharge occurs, and therefore it is necessary to increase the length of the ozone generator 11. In this case, as shown in FIG.
6d and a raw material gas flow hole 16e are provided.

In FIG. 3, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the explanation thereof will be omitted.

In the above embodiment, the ozone generator 35 was placed on the upstream side of the flowing water, and the ozone injector 18 was placed on the downstream side of the flowing water, but the positions of the ozone generator 35 and the ozone injector 18 may be swapped. .

In the above embodiment, if the flow rate and pressure of the flowing water are appropriate, the ozone gas can be naturally sucked by the Venturi action of the Venturi pipe section 19, so the compressor can be omitted.

[Effects of the Invention] As described above, according to the present invention, the inside of the insulating base of the ozone generator is used as the cooling water passage, and the water body flowing in the water passage is cooled so as to serve as the cooling water of the ozone generator. Since the water passage and the flowing water passage in the ozone injector are connected, a special cooling device is not required, and cooling water piping can be omitted, and the structure can be simplified.

In particular, according to the second aspect of the invention, a check valve is incorporated in the ozone supply passage in the ozone injector, and the inner space of the insulating base of the ozone generator is directly connected to the venturi pipe portion of the ozone injector. Since the ozone supply passage inside the ozone injector is directly connected to the ozone generation space of the ozone generator,
The piping between the ozone generator and the ozone injector can be omitted, resulting in a compact overall configuration, which has the advantage of providing a simple water ozone treatment device that can be used by connecting to a water faucet. .

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention, and FIG.
A right side view of the figure, FIG. 3 is a vertical sectional view showing another embodiment of the present invention, and FIG. 4 is a block diagram showing a conventional water ozone treatment apparatus. 11... Ozone generator, 12... Insulating base, 13.
...Discharge electrode, 14...Induction electrode, 15...Cooling water passage, 16...Ozone generator body, 18...Ozone injector, one...Pendury tube section, 19a...
Narrowing part, 20... Injector body, 26... Ozone generation space, 2Of... Ozone supply passage, 20h... Ozone injection hole, 23... Water flow passage, 35... A' pushin Raw materials. Diagram Procedure Manual (Method) % Formula % Water Ozone Treatment Equipment

Claims (2)

[Claims] (1) An ozone generator using an ozone generator including a discharge electrode and an induction electrode on a cylindrical insulating base, and an ozone generator that has a water flow passage inside and uses water flowing in the water flow passage. an ozone injector for injecting ozone obtained from The cooling water passage and the water passage in the ozone injector are connected in series so that the water flowing through the water passage in the ozone injector is used as cooling water for the ozone generator. ozone treatment equipment. (2) The ozone injector is provided with a venturi pipe section constituting the water flow passage and an ozone supply passage that supplies ozone obtained from the ozone generator to the narrowed part of the venturi pipe section, A check valve for preventing backflow of ozone is incorporated in the ozone supply passage, a cooling water passage inside the insulating base is directly connected to the Venturi tube portion, and the ozone supply passage connects to the outer periphery of the insulating base. The water ozone treatment device according to claim 1, wherein the water ozone treatment device is directly connected to an ozone generation space of the ozone generator provided so as to surround the ozone generator.