JP2000037694A - Method and apparatus for making ozone water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject method and apparatus forming a simple and lightweight structure easy in maintenance and control and capable of continuously supplying ozone water of high concn. SOLUTION: A reaction tank 1 having two water storage sections Sa, Sb constituted so as to be capable of communicating with each other in an upper space Su by a division wall 2 is constituted and water is supplied to one water storage section Sa from the outside and ozone gas is injected in and mixed with the supplied water to dissolve ozone in the supplied water and ozone water Wo allowed to overflow from one water storage section Sa is once stored in the other water storage section Sb to be supplied to the outside from the other water storage section Sb. The injection and mixing of ozone gas performed along with the supply of water is performed by connecting an ejector 4 to the water supply pipe 3 and the ozone gas is taken in water by the ejector 4 and a mixing means 5 is connected to the ejector 4 on the outflow side thereof to produce ozone water Wo.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for continuously producing and supplying ozone water obtained by dissolving ozone gas in supply water such as tap water.

[0002]

BACKGROUND OF THE INVENTION It is widely known that ozone water produced by dissolving ozone in water has a strong bactericidal effect. Such ozone water is relatively safe because dissolved ozone is gradually released as harmless oxygen after use. For this reason, washing and sterilizing tableware, cooking utensils, foodstuffs, and the like using the ozone water has been attracting attention in recent years, and various ozone water generation devices have been provided.

[0003]

2. Description of the Related Art Many of these ozone water generating apparatuses (or ozone water producing apparatuses) are
It is a method of dissolving ozone gas in feed water,
Various improvements have been made with an emphasis on how to dissolve efficiently.

[0004] Since it is difficult to dissolve the ozone gas at a high concentration simply by injecting ozone gas into water, an electric field or a magnetic field is set in the mixing section, and a certain treatment such as purifying the supplied water is performed. Devices have been devised to maintain high solubility.

[0005] However, such an apparatus becomes expensive due to a large number of parts and a large number of additional facilities and complexity.
In addition, there is a problem that a failure easily occurs and maintenance and repair are difficult and expensive.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and has a simple and lightweight structure which is easy to maintain and maintain, and which can continuously supply high-concentration ozone water. A manufacturing method and an apparatus therefor are provided.

[0007]

In order to achieve the above object, the present invention is configured as follows. In addition, although the description may be given with reference numerals, the present invention is not limited thereby.

First, as a method for producing ozone water (Wo),
Can be distributed by overflow (“overflow”)
Reactor with two filled water storage compartments (Sa, Sb)
Construct (1), from outside to the water storage section (Sa) on one side
Supply water and ozone gas (O _Three)
Dissolve the zon and remove the water from the water storage compartment (Sa) on one side.
Once the ozone water (Wo) is
After being stored in the water compartment (Sb), the water storage compartment on the other side
(Sb) to supply ozone water (Wo) to the outside
It is characterized by having done.

Injection and mixing of ozone gas performed together with water supply, an ejector (4) is connected to a water supply pipe (3), the ozone gas is taken into the water by the ejector (4), and mixed at the outlet side of the ejector (4). The method is characterized in that the means (5) is connected.

Further, if necessary, a closed water storage section (Sa,
The upper space (Su) of Sb) is pressurized. As an apparatus for realizing such a method, a certain space (Su) is provided in the upper part, and overflow (“overflow”)
Storage compartments (S
a, Sb), a closed reaction tank (1), a water supply pipe (3) connected to a water storage section (Sa) on one side of the closed reaction tank (1), and a water supply pipe (3). Connected to the outflow side,
An ejector (4) having a throat connected to an ozone gas supply pipe (6) from an ozone generating means (7); a mixing means (5) connected to an outlet of the ejector (4); A water pipe (9) communicating with the water storage section (Sb);
It is characterized by consisting of.

Further, a decomposition apparatus (10) for decomposing ozone gas into oxygen and discharging it is connected to the upper space (Su) of the closed reaction tank (1).

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view showing the present embodiment, FIG. 2 is an enlarged sectional view showing an ejector attached to a portion A in FIG.
FIG. 3 is an enlarged sectional view showing a mixing means attached to a portion B in FIG.

Reference numeral 1 denotes a reaction vessel having a rectangular cylindrical shell, which is formed of a metal material such as stainless steel or a rust preventive material so as to be internally sealed. The inside of the reaction tank 1 is divided into two water storage sections Sa and Sb by a dividing wall 2 erected from the bottom 1b to the vicinity of the ceiling 1u.

A water supply pipe 3 for introducing supply water (mainly tap water) from the outside is connected to one water storage section Sa. The water supply pipe 3 is attached through a ceiling surface 1u of the reaction tank 1 through an electromagnetic valve 3b as a water stopping means, and an ejector 4 is connected to and connected to the inside of the reaction tank 1. Furthermore, on the outflow side of the ejector 4,
Mixing means 5 is connected in communication.

As shown in FIG. 2, the ejector 4 is connected to an ozone gas supply pipe 6 which communicates with a throat portion 4s of the venturi tube, so that ozone gas is taken into supply water. Conventionally, various devices have been used to generate ozone gas. For example, ozone generating means 7 using high voltage discharge is used, and the blower 8 connected to the ozone generating means 7 supplies the ozone gas to the ejector 4 via the ozone gas supply pipe 6. Is to be sent.

The mixing means 5 is for stirring and mixing the ozone water in which ozone is taken into the water by the ejector 4 to dissolve more ozone and extend the residence time in the water. Various types of mixing means 5 can be considered, but a very preferable result is obtained by using a static mixer (U) having a configuration shown in FIG.
S. PAT. 5,312,185). This is a method in which a baffle plate 5a in which a perforated plate is formed in a spiral shape is arranged in a tube, and water is supplied to the tube for stirring and mixing. The water supply pressure from the ejector 4 allows sufficient stirring and mixing. it can.

A water pipe 9 is communicatively connected to the other water storage section Sb, and an opening 9e on the water absorption side thereof is disposed near the bottom surface 1b of the water storage section Sb. The water pipe 9
A pipe is installed from this water storage section Sb so as to pass over the dividing wall 2, and a water supply port 9 p is attached at a position penetrating outside from the bottom portion 1 b of one water storage section Sa.
A hose (not shown) is connected to the water supply port 9p, and the ozone water Wo is supplied to an appropriate place.
In the present invention, the pipe of the water supply pipe 9 is not limited to the above-described configuration. The pipe may be directly guided to the outside from the bottom portion 1b of the water storage section Sb without getting over the dividing wall 2.

The upper space Su in the reaction tank 1 is pressurized if necessary, and the upper portions of the two water storage sections Sa and Sb are opened to form one space. A decomposition device 10 for decomposing ozone is connected to the upper space Su.
The decomposer 10 includes a puffer tank 10b for storing undissolved ozone gas into oxygen while maintaining the pressurized state of the upper space Su, and a catalyst chamber 10c communicated therewith for decomposing the remaining ozone gas into oxygen. It is composed of Ozone completely decomposed into oxygen through this is released into the air.

[0019]

Since the present embodiment is constructed as described above, the water sent by the water supply pipe 3 is supplied to the ejector 4 by the ejector 4.
Ozone gas from the ozone gas supply pipe 6 is taken into the supply water, and more ozone is taken into the water by the mixing means 5 and stored in the water storage section Sa. Then, the ozone water W overflowing (overflowing) the dividing wall 2
o is temporarily stored in the water storage section Sb on the other side, and then supplied to the outside from the water pipe 9.

At this time, the undissolved ozone gas that has not been completely dissolved in the water is decomposed into oxygen by the dividing device 10 connected to the upper portion of the reaction tank 1 and released into the air.

[0021]

[Possibility of Another Embodiment] In the formation of the two water storage compartments Sa and Sb, in the above embodiment, the rectangular cylindrical reaction tank 1 is used.
Is formed by dividing the inside into two parts on the left and right sides.Although not shown in the figure, for example, the reaction tank is cylindrical, and a cylindrical dividing wall is provided around the same axis, and the center side is a water supply pipe 3
May be arranged as the water storage space Sa, and a ring-shaped other water storage space Sb may be arranged therearound.

[0022]

[Effect] Since the present invention is configured as described above,
It is possible to continuously produce high-concentration ozone water with a simple configuration, and it has an effect that a simple structure is achieved and maintenance and management after disassembly is easy.

The reaction tank is divided into two storage compartments,
Ozone is taken in one storage compartment and then temporarily stored in the other storage compartment, so that undissolved ozone is collected and released from the decomposer. Has the effect that it can be manufactured and continuously supplied.

Further, since the movement of the ozone water from the water storage section on one side to the water storage section on the other side is caused by overflow, the structure is simple, and the water surface of the ozone water supplied to the water storage section on one side is reduced. Ozone water consisting only of dissolved ozone after releasing undissolved ozone in the vicinity can be moved to the water storage section on the other side.

Furthermore, when the upper space of the reaction tank is pressurized, more ozone can be dissolved in water, and ozone water of higher concentration can be produced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the present embodiment.

FIG. 2 is an enlarged sectional view showing an ejector attached to a portion A in FIG. 1;

FIG. 3 is an enlarged sectional view showing a mixing means attached to a portion A of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reaction tank 1b Bottom part 1u Ceiling surface 2 Dividing wall 3 Water supply pipe 3b Solenoid valve 4 Ejector 4s Throat part 5 Mixing means 5a Baffle plate 6 Ozone gas supply pipe 7 Ozone generation means 8 Blower 9 Water pipe 9e Tip opening 9p Water supply port 10 Disassembly Apparatus 10b Buffer tank 10c Catalyst chamber Sa, Sb Water storage section Su Upper space Wo Ozone water

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) C01B 13/10 C01B 13/10 D C02F 1/78 C02F 1/78

Claims (5)

[Claims] 1. A reaction tank (1) having two water storage compartments (Sa, Sb) configured to be able to flow by overflow (“overflow”), and to a water storage compartment (Sa) on one side from outside. Water was supplied and ozone gas (O ₃ ) was injected and mixed to dissolve ozone, and the ozone water (Wo) overflowed from the one-side storage section (Sa) was once stored in the other-side storage section (Sb). Then, the ozone water (W) is discharged from the water storage section (Sb) on the other side to the outside.
o) A method for producing ozone water, wherein o) is supplied. 2. An injection and mixing of ozone gas, which is performed together with the supply of water, is performed by connecting an ejector (4) to a water supply pipe (3), taking the ozone gas into the water by the ejector (4), and mixing the ozone gas into an outlet of the ejector (4). 2. The method for producing ozone water according to claim 1, wherein the means (5) is connected. 3. The pressurized state of the upper space (Su) of the closed water storage compartments (Sa, Sb).
Or the method for producing ozone water according to 2. 4. A sealed reaction vessel (1) having a fixed space (Su) at the top and two water storage sections (Sa, Sb) configured to be able to flow to each other by overflow (“overflow”). ), A water supply pipe (3) connected to a water storage section (Sa) on one side of the closed reaction tank (1), and an ozone generation means ( An ejector (4) to which the ozone gas supply pipe (6) from (7) is connected, and a mixing means (5) connected to the outlet side of the ejector (4).
And a water pipe (9) communicating with the water storage section (Sb) on the other side. 5. A decomposer (10) for decomposing ozone gas into oxygen and discharging the decomposed ozone gas is provided in an upper space (S) of a closed reaction vessel (1).
5. The apparatus for producing ozone water according to claim 4, wherein the apparatus is connected to u).