JP6089526B2 - Ozonizer, liquid purification apparatus using the same, and treatment method - Google Patents

Description

  The present invention relates to an ozonizer. The present invention relates to a liquid purification apparatus and a processing method using the same.

Conventionally, it is known that it is generally effective to generate ozone with an ozonizer and sterilize and purify with ozone when cultivating plants or purifying liquids in aquariums of domestic fish Yes.
As this type of ozonizer, for example, an ozone generator disclosed in Patent Document 1 has been proposed. This ozone generator is provided with an ozone generator tube, which is composed of a metal tube constituting one electrode and an outer tube having a dielectric cylinder made of an insulating layer such as a glass tube formed on the inner periphery thereof. The inner tube is arranged coaxially with the outer tube and becomes the other electrode. Here, when a large amount of ozone is generated, it is necessary to prevent this because the temperature of the apparatus main body rises greatly. In the ozone generator of Patent Document 1, a device for adjusting the temperature of the outer wall surface of the outer tube to a predetermined temperature is provided in the ozone generator tube, and this device tries to prevent the temperature from rising. Moreover, in the prior art in patent document 1, the radiation fin for temperature rise prevention is provided in the outer wall of the outer tube | pipe of an ozone generation tube.

  Patent Document 2 is a hydroponic system suitable for cultivating a large amount of plants by hydroponics, and an ozone generating unit is used in this hydroponic system. This ozone generation unit has a structure in which a cylindrical dielectric made of glass or the like is provided on the outer periphery of a metal rod, and a gap between the metal rod and the dielectric becomes a discharge space, and ozone is passed through this discharge space. It can be generated.

  By the way, in recent years, from the viewpoint of the effects of natural disasters such as the earthquake disaster and ecology, for example, in the field of hydroponics, attention has been focused on outdoor horticulture to facility horticulture, not only large-scale plant factories, for example, 2-3 tsubo Demand for small-scale plant factories and kitchen gardens is also expected. In response to such a demand for small-scale plant cultivation, downsizing of an ozonizer for purifying nutrient solution is also desired.

JP 63-50304 A JP 2009-247303 A

However, the ozone generators of Patent Document 1 and Patent Document 2 are not premised on use in a small-scale plant factory, home garden, or small aquarium for domestic fish, and a relatively large amount of fluid to be treated. Therefore, the structure is complicated and the whole size is increased.
For example, in the ozone generator of Patent Document 1, the structure is complicated by providing fins and a temperature adjusting device to cool a metal tube as an outer tube, and an arrangement space for these fins is also required. In addition, the entire device was enlarged. Furthermore, since this ozone generator has a structure in which glass is welded or lined to the inner wall of a metal tube, it has been difficult to form while maintaining its dimensional accuracy.

In the ozone generation unit in Patent Document 2, the nutrient solution flows on the outer periphery of the cylindrical dielectric, and this nutrient solution serves as a cooling and grounding function for the unit. Therefore, the structure is complicated in order to reduce the size. It is difficult to reduce the number of parts. In addition, in order to allow the liquid to flow around the outer periphery of the cylindrical dielectric, it is necessary to connect both the water pipe and the air pipe to the ozone generation unit, and there is a limit to downsizing. In addition, when the size is reduced, the flow area of the water passage portion becomes smaller and the fluid easily becomes clogged in this narrow water passage portion. Therefore, the flow of the fluid becomes worse, which adversely affects the ozone generation ability and leads to failure. There is also a fear.
As described above, it is difficult to simplify the structure or reduce the number of parts of ozone generators such as Patent Document 1 and Patent Document 2 in order to cope with a large amount of water treatment, and are suitable for downsizing. Absent.

  The present invention has been developed to solve the above-mentioned problems, and the object of the present invention is particularly useful for sterilizing and purifying small-scale plant cultivation nutrient solutions and liquids in water tanks, An object of the present invention is to provide an ozonizer capable of promoting the growth of a living organism by functionally sterilizing and purifying it while miniaturizing the whole with a simple structure, and a liquid purification apparatus and treatment method using the ozonizer.

In order to achieve the above object, the invention according to claim 1 is directed to a cylindrical dielectric disposed concentrically on the outer periphery of a metal rod of a high-voltage electrode via a gap that is a discharge space, It is composed of an ozone generator having a grounding function wound around an outer peripheral surface and a thin-film heat dissipation sheet having a heat dissipation function, and the width of the heat dissipation sheet is equal to or greater than the length of the metal rod. The ozonizer is connected to a casing in which the ozone generator is built in a state where the winding end of the conductive sheet is extended .

The invention according to claim 2 is an ozonizer in which a dry air inlet is provided on one side of the ozone generator and an ozone outlet is provided on the other side.

The invention according to claim 3 purifies the water to be treated, which is supplied from the ozone generator to the flow path of the water to be treated through the ejector, by flowing it into the oxidation promoter having an ultraviolet function and a photocatalytic function. This is a liquid purification apparatus using the ozonizer.

The invention which concerns on Claim 4 is the processing method which circulated the purified treated water with the liquid purification apparatus to the liquid of the aquaculture solution of the hydroponic culture or the domestic fish, and purified the to-be-treated water.

According to the present invention, a cylindrical dielectric is disposed concentrically on the outer periphery of the metal rod via a gap, and a thin heat dissipating sheet is wound around the outer peripheral surface of the dielectric. Both the voltage grounding electrode and heat dissipation can be configured with this single component, and the entire structure has a simple structure while providing sufficient ozone generation function for small-scale plant-cultivated nutrient solution and water in the aquarium of domestic fish. It can be downsized and easily assembled. With this structure, the nutrient solution and water can be sterilized and purified functionally to promote the growth of organisms.

In addition , the heat dissipation sheet has good thermal conductivity and conductivity, and since this heat dissipation sheet is in the form of a thin film, the heat generated by the discharge in the gap is efficiently conducted to the outside through the housing. It is possible to escape, and it is possible to generate a large amount of ozone with high efficiency by improving the dischargeability in the air gap.

Furthermore , ozone of dry air can be supplied while utilizing the entire length of the ozone generator, and the ozone generator is highly concentrated by a metal rod that is a high voltage electrode arranged in the length direction while being compact in the radial direction. Can supply ozone.

Moreover , ozone can be mixed while being dissolved in the water to be treated in the form of fine bubbles by the ejector, and the water to be treated is sterilized and purified by the ultraviolet ray function and photocatalytic function of the oxidation promoter, thus providing a higher functionality treatment. It becomes possible to obtain water.
Furthermore, if a liquid purification device is connected to a filtration device that filters the water to be treated with a filter medium such as sand or gravel, the bacteria filtered through the filtration device and the slime attached to the inside And the like can be removed by the liquid purification device, and the lifetime of the filtration device can be extended.

Moreover , while preventing the nutrient solution of the hydroponics or the liquid in the water tank from being acidified by ozone, the treatment water can be circulated by the liquid purification device to promote effective growth of the organism.

It is the longitudinal cross-sectional view which showed one Embodiment of the ozonizer in this invention. FIG. 2 is an exploded perspective view of FIG. 1. It is principal part sectional drawing of an ozonizer. (A) is a conceptual diagram which shows the state which connected the ozonizer in series. (B) is a conceptual diagram which shows the state which connected the ozonizer in parallel. (A) is a conceptual diagram which shows the state which connected the ozonizer in series with the header. (B) is a conceptual diagram which shows the state which connected the ozonizer in parallel with the header. It is sectional drawing which shows the state which arranged the ozonizer side by side. It is a schematic diagram of a liquid purification apparatus. It is a conceptual diagram of a liquid purification apparatus. (A) is a conceptual diagram which shows an example of a hydroponic cultivation system. (B) is a conceptual diagram which shows the other examples of a hydroponic cultivation system.

Hereinafter, embodiments of an ozonizer, a liquid purification apparatus using the ozonizer, and a treatment method according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of an ozonizer according to the present invention, and FIG. 2 shows an exploded perspective view of FIG.
As shown in the figure, the ozonizer body 1 in the present invention has an ozone generator 2, and the ozone generator 2 is composed of a metal rod 3, a dielectric 4, and a heat dissipating sheet 5.

  In the ozone generator 2, the metal rod 3 is provided as a high-voltage electrode by a stainless material such as SUS304 or titanium. As the shape of the metal rod 3, for example, an outer diameter of about 7 mm and a length of about 55 mm are provided, and the outer diameter is smaller than the length. When the length of the metal rod 3 is set to 55 mm, an ozone generation amount of about 500 mg / h is secured. The amount of ozone generated may be about 300 mg / h, and in this case, the length of the metal rod 3 can be reduced to about 30 to 35 mm.

In FIG. 3, the dielectric 4 is formed in a cylindrical shape, and is disposed concentrically on the outer periphery of the metal rod 3 with a gap G interposed therebetween. The gap G is provided with an interval of about 0.5 mm, and the gap G becomes a discharge space.
The dielectric 4 is made of, for example, a glass tube such as borosilicate glass, and is provided with dimensions such as an outer diameter of 10 mm, a thickness of 1 mm, and a length of about 80 mm. Thus, when the dielectric 4 is formed of borosilicate glass, it is resistant to thermal shock, and it is less expensive than the case of using quartz glass or ceramic that is resistant to thermal shock in the same manner as this borosilicate glass. Furthermore, since the tolerance of the dimensional accuracy can be reduced as compared with the quartz glass tube, the width of the gap G can be stabilized.

  As shown in FIG. 3, a thin-film heat-dissipating sheet 5 having a grounding function is wound around the outer peripheral surface 4a of the dielectric 4 in a close state. The heat dissipating sheet 5 is formed of a material having a good thermal conductivity, and can exhibit a function of efficiently dissipating heat generated by the discharge in the gap G. The heat dissipating sheet 5 has a good electrical conductivity, and also has a function of a ground electrode for discharging in the gap G. Thus, since the functions of the heat dissipation and the grounding electrode can be made into one component by the heat dissipating sheet 5, the cost can be reduced.

  The heat dissipating sheet 5 is made of, for example, a graphite sheet having good thermal conductivity and electrical conductivity. In the present embodiment, the heat radiating sheet 5 is made of a thin film-like graphite sheet having a thickness of about 17 μm. The graphite sheet 5 can improve thermal conductivity and electrical conductivity when it is more thin-filmed. In this embodiment, the thermal conductivity in the plane direction is 1750 W (m · K) and the electrical conductivity is 20000 S / cm. The heat-dissipating sheet 5 is preferably a graphite sheet as described above, particularly when importance is given to the thermal conductivity in the plane direction, and when used for an ozonizer having a specification with a small amount of discharge, a material other than graphite, for example, , Copper tape, aluminum tape, etc., and in this case also has a function of heat dissipation and grounding.

  An adhesive (not shown) is applied to the side of the graphite sheet 5 wound around the dielectric 4, and this adhesive is preferably, for example, acrylic. When the adhesive is acrylic, for example, heat resistance can be improved by using an adhesive having a heat resistant temperature of about 100 to 150 ° C. The winding end 5a of the graphite sheet 5 is connected via an adhesive to the housing 7 shown in FIG. 3 for incorporating the ozone generator 2 therein. The thickness of this adhesive layer is, for example, 10 to 30 μm, and 30 μm when importance is attached to the adhesiveness while securing the predetermined thermal conductivity and conductivity, and 30 μm when more importance is attached to the thermal conductivity and conductivity. For example, 10 μm is selected. In addition to connecting to the casing 7 above the ozonizer as shown by the solid line in FIG. 3, the graphite sheet 5 can also be connected below the ozonizer as shown by the broken line. Since there is no staying area E, better heat dissipation can be performed.

  The graphite sheet 5 may be connected to an attachment member having a heat dissipation function of the ozone generator 2, and in this case, the attachment member may be provided integrally with the housing 7 or provided separately. In FIG. 3, the attachment member 8 is provided integrally with the housing 7. As for the housing | casing 7 and the attachment member 8, only the part holding an ozonizer main body is good to be formed with the material with high heat dissipation functions, such as an aluminum material.

As shown in FIG. 1, substantially cylindrical connecting members 10 and 10 are provided on both sides of the ozonizer body 1. The connecting member 10 is provided with a through hole 11 to which the dielectric 4 can be attached in the axial direction, and the dielectric 4 having the metal rod 3 attached to the inside of the connecting member 10 is attached through the through hole 11.
In the connection members 10 and 10 on both sides, a dry air inlet 12 is provided on one side, and an ozone outlet 13 is provided on the other side, and these dry air inlet 12 and ozone outlet 13 are provided in the ozone generator 2. It communicates with the gap G. The ozone generator 2 is connected to an external flow path via the connecting member 10 and can supply dry air from the dry air inlet 12 side and supply air containing ozone from the ozone outlet 13. .

  The ozonizer body 1 includes a cylindrical spacer 15 made of a resin such as polytetrafluoroethylene, a bolt 16a that is a conductor, a bolt 16b that is an insulator, a nut 17, a seal washer 18, An O-ring 19 is provided. The bolt 16a is connected to a power source (not shown).

  1 and 2, when assembling the ozonizer body 1, the bolts 16 are screwed on both sides of the metal rod 3, and the dielectric 4 is attached to the outer peripheral side of the metal rod 3 with the bolts 16 covered with the spacers 15. Then, these both sides are inserted into the through hole 11 of the connecting member 10 having the O-ring 19 mounted on the inner peripheral side. Next, the end face 15 a of the spacer 15 is inserted into the through hole 11 of the connection member 10, and these can be integrated by screwing the nut 17 to the bolt 16 via the seal washer 18. A space is provided between the end face 4 b of the dielectric 4 and the connection member 10 to prevent an axial force from being applied to the dielectric 4 when the ozonizer body 1 is assembled.

  Thereafter, the graphite sheet 5 is attached to the outer peripheral surface 4 a of the dielectric 4. In this case, the graphite sheet 5 is bonded to the outer peripheral surface 4a in a close contact state simply by winding the graphite sheet 5 around the dielectric 4 with an adhesive applied to one side of the graphite sheet 5. If there is a portion where the graphite sheet 5 and the dielectric 4 are not in close contact with each other, this portion becomes an air layer, that is, an insulating layer, and forms a region where ozone is not generated. Since the graphite sheet 5 is adhered to the dielectric 4 while preventing the air layer from remaining with the adhesive layer, ozone can be generated on the entire outer peripheral surface 4 a of the dielectric 4.

The heat dissipating sheet 5 is set to have a width W equal to or greater than the length of the metal rod 3 (55 mm in the present embodiment) so as to face the entire outer periphery of the metal rod 3, and is attached to the outer peripheral surface 4 a of the dielectric 4. . Thereby, ozone can be generated over the entire length of the metal rod 3. The width W in the present embodiment is set to a dimension that is longer than the length of the metal rod 3 and slightly shorter than the distance T between the connecting members 10 and 10.
After the ozonizer body 1 is assembled, the connecting member 10 is fixed to the housing 7 with screws (not shown), and the winding end 5a of the graphite sheet 5 is attached to the housing 7 and fixed.

  In the ozonizer of the present invention, the cylindrical dielectric 4 is disposed concentrically on the outer periphery of the thin metal rod 3 through the gap G as described above, and a thin film is formed on the outer peripheral surface 4a of the dielectric 4. Since the ozone generator 2 is constructed by closely winding the heat-radiating sheet 5 in a close state, the structure can be simplified and the whole can be downsized. In addition, the ozone generator 2 generates sufficient ozone to remove bacteria from a relatively small amount of water to be treated, such as plant cultivation in small-scale plant factories and kitchen gardens, and water in aquariums for domestic fish. Is possible.

  FIG. 4 shows a state in which the ozonizer main bodies 1 are connected in series or in parallel. In FIG. 4A, the ozonizer main body 1 is connected in series, and it becomes possible to generate high-concentration ozone while reducing the size of the ozonizer main body 1. Furthermore, if the electrode part (not shown) is lengthened, the ozone concentration becomes deeper if the electrode part is made longer under the same air conditions (pressure and flow rate), and the discharge area becomes larger by making the electrode part thicker. This makes it possible to increase the ozone concentration. For example, in FIG. 4A, when air is supplied at 2 L / min from the inlet side of the primary ozonizer body 1, ozone-containing air is supplied from the primary ozonizer body 1 to the secondary ozonizer body 1 at 2 L / min. From the outlet side of the secondary ozonizer body, it is possible to generate ozone-containing air at a concentration of 2 L / min that is twice the concentration of the single ozonizer body 1.

  In FIG. 4B, the ozonizer main body 1 is connected in parallel, so that a large flow of ozone can be generated without changing the concentration while reducing the size of the ozonizer main body 1. In this case, for example, when air is supplied at 2 L / min from the inlet side of each ozonizer body 1, the same at 4 L / min, which is twice from the outlet side of these ozonizer bodies 1 connected in parallel to each inlet side, is the same. It becomes possible to generate ozone-containing air having an ozone concentration. Furthermore, by connecting n ozonizer main bodies 1 in parallel, ozone-containing air having an n-fold flow rate can be generated with the same ozone concentration.

FIG. 5 shows a state in which the ozonizer main body 1 is connected in series or in parallel using the header 20.
In FIG. 5A, n ozonizer bodies 1 are connected in series by a header 20. In this case, when dry air is supplied from the inlet side of the primary header 20, this air is connected to the primary header 20. The ozonizer body 1 provided in series with the secondary header 20 is sequentially passed, and ozone-containing air having a concentration n times that of one ozonizer body 1 from the outlet side of the secondary header 20 is set as the inlet side. It can be generated at the same flow rate.

  In FIG. 5B, n ozonizer bodies 1 are connected in parallel by the header 20. In this case, when dry air is supplied from the inlet side of the primary header 20, this air is connected to the primary header 20. Simultaneously passes through the ozonizer body 1 provided in parallel with the secondary header 20, and enters the primary header 20 from the outlet side of the secondary header 20 at the same ozone concentration as that of the single ozonizer body 1. Ozone-containing air can be generated at a flow rate n times that on the side.

  By connecting the ozonizer main bodies 1 in series or in parallel via the header 20 in this way, it is possible to connect a large number of ozonizer main bodies 1 while making the whole compact, compared with the case where the number of ozonizer main bodies 1 is one. Thus, it is possible to efficiently generate ozone-containing air having a higher concentration and a larger flow rate.

  In FIG. 6, for example, when the ozonizer body 1 is connected in series or in parallel as described above, the ozonizer body 1 is arranged side by side on the housing 7 or the attachment member 8. At this time, the graphite sheet 5 is wound around the outer peripheral surface 4 a of each dielectric 4, while the graphite sheet 5 is attached to the mounting position of the housing 7 or the mounting member 8. Subsequently, the graphite sheet 5 wound around the outer peripheral surface 4a of the dielectric 4 is brought into close contact with the graphite sheet 5 attached to the casing 7, so that the heat generated when ozone is generated by the ozonizer body 1 is attached to the casing 7 or the casing 7. It becomes possible to escape to the member 8. According to the present invention, since there are no protrusions on the outer periphery of the dielectric 4, a plurality of ozonizers can be arranged close to each other as shown in FIG. 6, and the apparatus can be downsized.

  7 and 8, a liquid purification apparatus main body (hereinafter referred to as an apparatus main body) 30 using the above-described ozonizer main body 1 is shown. In addition to the ozone generation function of the ozonizer body 1, the apparatus body 30 includes an oxidation accelerator 31 having an ultraviolet function and a photocatalytic function, an ejector 32, a flow rate switch 33, and a check valve 34.

An ultraviolet light source (ultraviolet lamp) (not shown) is provided inside the oxidation promotion body 31 on the outer peripheral side of the internal flow path 35 of the oxidation promotion body 31 via a cylindrical member 36, and the entrance of the oxidation promotion body 31 by this ultraviolet lamp. It is possible to irradiate the water to be treated flowing from the side flow path 37 through the internal flow path 35 to the outlet side flow path 38 with ultraviolet rays.
The internal flow path 35 is also provided with a photocatalyst 41 (see FIG. 7), and the action of the photocatalyst 41 is also exhibited when the water to be treated passes through the internal flow path 35.

  In FIG. 7, an ejector 32 is provided between the ozone outlet 13 of the ozone generator 2 and the inlet-side flow path 37 of the oxidation accelerator 31 via a check valve 34, and this ejector 32 is connected via a flow switch 33. Thus, the flow path of the water to be treated is connected.

  For example, the ejector 32 is provided between the ozone outlet 13 of the ozone generator 2 and the inlet-side flow path 37 of the oxidation accelerator 31. The ejector 32 can generate negative pressure in the water to be treated based on the principle of the venturi pipe. When compressed air from the air pump 39 is supplied into the ejector 32 through the ozonizer 1, the negative pressure is used. Thus, ozone can be efficiently dissolved in the water to be treated. Although not shown, a microbubble generator capable of generating microbubbles (fine bubbles) may be provided at the position of the ejector 32, and ozone generated by the ozone generator 2 using this microbubble generator is treated water. You may make it dissolve in.

  Thus, in the apparatus main body 30 using the ozone generator 2, ozone from the ozone generator 2 is supplied to the flow path of the water to be treated via the ejector 32 and the microbubble generator, and this treated water is supplied. The treated water after flowing into the oxidation promoter 31 and subjected to the ozone treatment by the ozonizer body 1 is further sterilized and purified by the ultraviolet function and the photocatalytic function of the oxidation promoter 31. In FIG. 8, an air pump 39 and a dryer 39 are provided on the primary side of the ozonizer body 1, and the compressed air generated by the air pump 39 is sent to the ozonizer body 1 after drying through the dryer 40.

  In addition, the oxidation promoter 31 may be provided in an enlarged state as a whole. In this case, a commercially available large germicidal lamp can be used, thereby using a specially shaped ultraviolet lamp for sterilization. Since it is not necessary, the cost can be reduced. In addition, a special ultraviolet lamp may be used when a commercially available germicidal lamp has insufficient ultraviolet capability, and in this case, it can be used for an application requiring more accelerated oxidation. In this case, when it is used for a special ultraviolet lamp, it can be made compact.

When the oxidation promoter 31 is increased in size, nutrients such as Fe and Mg may oxidize and precipitate due to accelerated oxidation and may adhere to the internal flow path 35 of the oxidation promoter 31 or may be oxidized and precipitated.
For the purpose of supplementing these nutrients, the oxidation promoter 31 is provided with an ultraviolet illuminance sensor 45. The ultraviolet illumination sensor 45 can see the intensity of the ultraviolet light, when oxides such as Fe and Mg illuminance of ultraviolet rays has decreased adhering to the internal flow path 35 of the oxidation promoting body 31, information from the sensor 4 5 Is fed back, and components that are deficient due to a decrease in Fe, Mg, etc. in the water to be treated are replenished from a liquid fertilizer replenishment device (not shown). For example, leaf chlorophyll cultivation of lettuce is reduced by the lack of Fe and Mg yellow-green, yellowing, although chlorosis, measures the chlorophyll of the leaves of the cultivated product by using a sensor 4 5, Fe and Mg fertilizer components can be supplemented as chlorophyll decreases.

  Next, a method for treating water to be treated using the apparatus main body 30 using the ozonizer main body 1 will be described. In this treatment method, the treated water is purified by circulating the purified treated water through the liquid purification device into the nutrient solution of the hydroponics or the aquarium of the reared fish.

  As an example of this processing method, FIG. 9 shows a nutrient solution cultivation system 50 provided with a device main body 30 using the ozonizer main body 1. The nutrient solution cultivation system 50 includes an apparatus main body 30 that uses the ozonizer main body 1, a culture liquid tank 51, a cultivation bed 52, and a circulation pump 53. In the culture solution tank 51, a culture solution that is liquid fertilizer in which nutrients are dissolved is put as water to be treated, and this culture solution is circulated between the culture solution tank 51 and the cultivation bed 52. In this nutrient solution cultivation system 50, the apparatus main body 30 is inserted from the culture liquid tank 51 into the flow path of the circulation pipe of the cultivation bed 52, and the culture liquid is sterilized and purified by the apparatus main body 30.

  In the nutrient solution cultivation system 50, the culture solution tank 51 and the cultivation bed 52 have a circulation line 56 connected by a supply line 54 and a return line 55. The supply line 54 is a line for supplying the culture solution from the culture solution tank 51 to the cultivation bed 52, and the nutrient solution inlet 54a is provided by branching the flow path in the middle, and the cultivation is started from the nutrient solution inlet 54a. The culture solution can be supplied to the plant in the bed 52. The return line 55 is a line for returning the culture solution from the cultivation bed 52 to the culture solution tank 51, and is connected to the culture solution tank 51 in a state of being focused on one flow path from the exit side of the cultivation bed 52. .

  In the cultivation bed 52, an appropriate plant is planted in a state where it can be cultivated with the culture solution. Although not shown, the cultivation bed 52 may be provided with an air blower. In this case, air can be blown from the air blower to leaves and stems (not shown) of the plant. If exhaust ozone discharged from the apparatus main body 30 is supplied to the blower, the blower can send air containing this exhaust ozone to the plant.

In FIG. 9 (a), the main body 30 is installed in the circulation line 56 for circulating the entire hydroponic culture systems 5 0, more specifically, provided on the primary side of the supply line 54 leading from the circulating pump 53 Yes. In this case, a bypass valve 57 is provided between the supply line 54 and the apparatus main body 30, and the bypass valve 57 is adjusted to supply a part or all of the culture solution delivered from the circulation pump 53 to the apparatus main body 30. The culture solution sterilized and purified by the apparatus main body 30 is sent out to the cultivation bed 52 side.

In FIG. 9 (b), the provided from the supply line 54 the apparatus main body 30 leading from the circulating pump 53 of the hydroponics system 5 0 to the bypass pipe 58 connected to the culture solution tank 51. In this case, the culture solution sent to the bypass pipe 58 by the circulation pump 53 is sterilized and purified by the apparatus main body 30, and the sterilized and purified culture solution is returned to the culture solution tank 51. Although not shown, adjustment of EC (electrical conductivity), Ph (hydrogen ion concentration), etc. of the supply line 54 in FIGS. 9A and 9B is provided with another device. do it.

  When the apparatus main body 30 is provided in the nutrient solution cultivation system 50, it is possible to either attach the apparatus main body 30 in advance or attach it by retrofitting. Thus, by providing the apparatus main body 30 using the ozonizer main body 1 in the flow path of the nutrient solution cultivation system 50, the ozone supply function, the ultraviolet ray function, and the photocatalyst function can be caused to act. It is possible to supply ozone to the medium, irradiate the culture solution with ultraviolet rays by the ultraviolet ray function, and allow the photocatalyst function to cause the photocatalyst having stronger disinfection ability and organic substance decomposition ability than ozone to act on the culture solution.

  In addition to the nutrient solution cultivation system 50 described above, it is possible to sterilize and purify any system (not shown) by circulating the water to be treated with a circulation pump or the like and performing water treatment with the apparatus main body. For example, in addition to the aquaculture fish tank described above, aquaculture, farming, sterilization purification of aquarium fish, etc. can also be carried out. Can reduce the use of marine drugs. In addition, by purifying water, the amount of water used can be reduced by reducing the number of water changes. By circulating the water in the cleaning tank after plating such as gold plating through the apparatus main body, generation of bacteria can be suppressed. When the apparatus main body is used for cooling water of a cooling tower, the cooling capacity can be maintained by suppressing sterilization of cooling water and generation of algae. When used for sterilization purification of ponds, the landscape of the pond can also be improved by suppressing the generation of blue water in the pond water. Since the use of a large-sized liquid purification device having a high purification capacity can be avoided by using the liquid purification device using the ozonizer of the present invention, it is possible to sterilize and clean a small bathtub while preventing overspec.

1 Ozonizer body 2 Ozone generator 3 Metal rod 4 Dielectric 4a Outer peripheral surface 5 Graphite sheet (heat dissipation sheet)
5a Winding end 7 Case 8 Mounting member 12 Dry air inlet 13 Ozone outlet 30 Liquid purifier main body 31 Oxidation promoter 32 Ejector 45 Ultraviolet illuminance sensor 50 Nutrient culture system G Gap

Claims (4)

Cylindrical dielectric disposed concentrically on the outer periphery of the metal rod of the high voltage electrode via a gap that is a discharge space, and a thin film having a ground function and a heat dissipation function wound around the outer peripheral surface of the dielectric The heat-dissipating sheet is made of an ozone generator, and the width of the heat-dissipating sheet is equal to or greater than the length of the metal rod. An ozonizer characterized in that it is connected to a housing containing a generator . The ozonizer according to claim 1, wherein a dry air inlet is provided on one side of the ozone generator and an ozone outlet is provided on the other side. The water to be treated is supplied through the ejector ozone from the ozone generator in the flow path of the water to be treated, to claim 1 or 2 so as to purify by flowing into the oxidation promotion body having ultraviolet function and photocatalytic function A liquid purification apparatus using the ozonizer described. The processing method which clarified to-be-processed water by circulating the purified treated water with the liquid purification apparatus in Claim 3 to the liquid of the culture solution of aquaculture, or the tank of domesticated fish.

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