JPH0655311B2 - Ozone water production system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone water production system for supplying ozone water used for ozone sterilization, ozone bleaching, deodorization and the like.

[0002]

2. Description of the Related Art When adjusting the ozone water concentration of an ozone water producing apparatus for obtaining ozone water using an ozone gas generator by an electrolysis method, the current value of the ozone gas generator is adjusted.

In this method, it takes several tens of minutes until the amount of ozone gas generated is stabilized after the current value is adjusted. As a method for obtaining ozone water, a diffuser plate type ozone contact tower consisting of blowing ozone gas into water and dispersing bubbles is generally used. Only one concentration can be obtained.

[0004]

The above-mentioned method is easy to operate, but in order to obtain the necessary ozone water, the time until the generation of ozone gas stabilizes is about 30 minutes to 1 hour and the stable ozone gas. It takes about 10 to 20 minutes to reach the required ozone water concentration, and it takes a very long time.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to discharge and fill the reaction tube with ozone gas obtained by electrolyzing pure water, and to discharge the spray water to generate ozone gas. It is an object of the present invention to provide an ozone water production system capable of discharging ozone water of different concentrations from a faucet by contact-dissolving without adjusting the generation part and turning the switch on and off.

[0006]

That is, the present invention is a reaction tube.
(5), and a spray nozzle (4, 4 ') provided in the reaction tube (5'),
Ozonizer for electrolyzing water to obtain ozone gas (1
1), a diffuser for discharging ozone gas from the ozonizer into the reaction tube (2, 2 '), and an ozone water storage tank (10, 10') connected to the lower part of the reaction tube, A flow path in which two or more reaction tubes equipped with liquid pumps (6, 6 ') that discharge ozone water are connected in series to allow ozone water to circulate between the storage tanks.
The present invention relates to an ozone water production system including (7).

The ozone water production system of the present invention is an air pump for feeding air into at least two reaction tubes.
(22), and an ozone killer (20) connected to the upper part of the reaction tube and decomposing and detoxifying ozone gas, the residual ozone gas remaining in the reaction tube is supplied to the ozone killer by air from the air pump. The ozone gas may be sent, decomposed and detoxified, and then discharged to the outside of the system.

[0008]

In the ozone water production system according to the present invention, since a large amount of spray water is supplied from the one-liquid nozzle (4, 4 ') to the reaction tube (5, 5') filled with ozone gas, ozone gas and water A large contact area with the ozone water can be obtained, and the ozone water generation efficiency is increased.

Also, since at least two ozone reaction tubes are connected so that the flow of ozone water is in series, the supplied water is converted into ozone gas at the one-liquid nozzle (4 ') of the first reaction tube. After coming into contact with the ozone gas, the one-liquid nozzle (4) for the next reaction tube again comes into contact with ozone gas.

On the other hand, ozone gas is the last reaction tube (5) in the flow direction of ozone water among the two or more reaction tubes connected.
Enters into contact with ozone water. Of the ozone gas that has come into contact with water in this reaction tube, the undissolved residual ozone gas passes through the exhaust ozone passage (1 ') connected to this reaction tube (5) and is guided to the front reaction tube (5'). Since it comes into contact with water or ozone water, the number of times of contact between gas and water is larger than in one reaction tube. Therefore, ozone water having a higher concentration than one reaction cylinder can be obtained.

Further, the ozone water in the storage tank at the lower part of the reaction tube is flow path (7) -storage tank B (10 ')-pump (6')-release path (14).
-By recirculating the spray nozzle (4) -reservoir A (10), ozone water having a higher concentration can be intermittently obtained. Therefore, according to the present system, ozone water having at least three kinds of concentrations can be obtained by switching the valve.
That is, the ozone water concentration obtained by one reaction tube, the ozone water concentration when two or more reaction tubes are used in series, and the ozone water concentration when water is intermittently recirculated between one or two reaction tubes. Is.

[0012]

EXAMPLE FIG. 1 shows one embodiment of the ozone water production system of the present invention. In FIG. 1, a reaction tube A (5) and a reaction tube B (5 ') for converting ozone gas into ozone water are provided, and the ozone gas from the ozonizer (11) is provided in the reaction tube A (5). An air diffuser (2) for discharging the gas through the gas passage A (1) and the check valve (23) is provided, and at the upper position thereof, there is provided one for spraying water into the reaction tube A (5). A spray nozzle mounting pipe (3) to which a liquid nozzle (4) is mounted is provided. Similarly, in the reaction tube B (5 '), the ozone gas undissolved in the reaction tube A (5) is attached to the upper part of the reaction tube A (5), and the exhaust ozone passage A (1') and the exhaust ozone passage An air diffuser (2 ') for discharging via a solenoid valve (19) is provided, and a one-liquid nozzle (4') for spraying water into the reaction tube B (5 ') is provided at the upper position thereof. The attached spray nozzle mounting pipe (3 ') is provided and a check valve (24) is provided to discharge the ozone gas remaining in the ozone water production to the outside of the reaction cylinder A (5) and the reaction cylinder B (5'). An air passage (21) provided with an air pump (22) is provided at one end, and ozone water or water is stored under the reaction tubes A (5) and B (5 '). Storage tanks A (10) and B (10 ') are provided, and the storage tank B (10') releases ozone water or water produced in the reaction tube B (5 ') to the reaction tube A (5). A discharge passage (14) for controlling the The vessel A (10), spillway for discharging the ozone water or water produced by the reaction column A (5) (25) is provided via a solenoid valve (26). The storage tanks A (10) and B (10 ') are provided with water level gauges (8), (9) and (8'), (9 '), respectively. This is because the contact area of ozone gas can be made constant by making the water level in the storage tank constant, and the ozone water concentration can also be made constant. Furthermore, storage tanks A (10) and B (1
The flow path (7) connected to the solenoid valve (17) is provided in 0 ').

First, in the case of producing the lowest concentration of the three kinds of concentrations, the ozone gas generated from the ozonizer (11) is discharged from the air diffuser (2) in the reaction cylinder A (5) and the reaction cylinder A
Introduced in (5). Ozone water that has been contact-dissolved with water sprayed from the one-liquid nozzle (4) there accumulates in the storage tank A (10), and when the water level of the ozone water becomes constant, a water level gauge ( Ozone water is sent to the solenoid valve (2
It is discharged by the pump (6) from the ozone discharge path (25) via 6).

In this case, ozone water can be continuously obtained by discharging while supplying water. in this case,
Water supply channel (13) -Solenoid valve (15) -Spray nozzle mounting pipe (3)-
The exhaust ozone gas flows through the path of the one-liquid nozzle (4) and is discharged through the path of the exhaust ozone gas passage B (12) -solenoid valve (18) -ozone killer (20), and the other solenoid valves (15 ', 16, (17, 18 ', 19)
Is closed.

Next, in the case of producing ozone water having a higher concentration than the ozone water, the ozone gas generated in the ozonizer (11) is opened by opening the solenoid valve (19) provided in the exhaust ozone gas passage A (1 '). Is introduced into the reaction tube A (5) through the exhaust ozone gas passage A (1) provided with the air diffuser (2) at one end, and the exhaust ozone gas passage A (1 provided with the air diffuser (2 ') at one end. It is also introduced into the reaction tube B (5 ') through the'). The water sprayed there from the one-liquid nozzle (4 ') comes into contact with ozone gas and becomes ozone water, and signals from the water level gauges (9') and (8 ') in the storage tank B (10') are used. Pump (6 ') from discharge path (14) through solenoid valve (16)
By the one-liquid nozzle (4) in the reaction cylinder A (5) into which the ozone gas is introduced, it becomes spray water and comes in contact with the ozone gas again, and becomes ozone water of a higher concentration and collects in the storage tank A (10), When the water level of the ozone water becomes constant, the ozone water is pumped from the ozone discharge passage (25) via the solenoid valve (26) by the signals from the water level gauges (9) and (8) in the storage tank A (10). ). In this case, ozone water can be continuously obtained by discharging while supplying water. In this case, water is supplied from the solenoid valve (15 ')-water supply channel B (13')-spray nozzle mounting pipe (3 ')-single liquid nozzle (4')-reservoir B (10 ')-pump (6'). ) -Discharge path (14) -Solenoid valve (16) -Spray nozzle mounting pipe (3) -One-liquid nozzle (4) -Reservoir A (10) -Pump (6)
-The discharge path (25) -flows in the path of the solenoid valve (26), and the solenoid valve (18) is closed.

Finally, in the case of producing the highest concentration ozone water, the air diffuser (2) in the reaction cylinder A (5) is opened by opening the solenoid valve (17) provided in the flow path (7). Ozone water obtained by contacting the gas introduced further and the water sprayed from the one-liquid nozzle (4) is introduced into the storage tank B (10 ') through the flow path (7). When the water level of the ozone water in the storage tank A (10) and the storage tank B (10 ') becomes constant, a water level meter installed in the storage tank A (10)
(9) and (8) and the solenoid valve provided in the discharge path (14) according to the signals from the water level gauges (9 ') and (8') provided in the storage tank B (10 ')
Ozone water is sprayed from the discharge passage (14) through the discharge channel (14) by the pump (6 ') through the one-liquid nozzle (4) provided in the reaction tube A (5), and the ozone water comes into contact with ozone gas again. Ozone water having a high concentration can be obtained, and the ozone water in the storage tank A (10) passes through the flow path (7) via the motor-operated valve (17) and is again stored in the storage tank B (1).
0 '), and the ozone water concentration is increased by circulating it again to the reaction tube A (5). When the desired ozone water concentration is reached, pump (6) from discharge path (25) via solenoid valve (26)
Emit by. Ozone water can be intermittently obtained because the ozone water is circulated until it reaches the desired concentration. In this case, water is supplied through the water supply passage (13) -solenoid valve (15) -spray nozzle mounting pipe (3) -single-liquid nozzle (4) -reservoir A (10) -flow passage (7).
-Motorized valve (17) -Flows with the reservoir B (10 '), and when the desired amount of water is reached, the solenoid valve (15) is closed by the signal of the water level gauge (8, 9, 8', 9 ') and the pump (6 '), And circulate the stored water. At this time, the solenoid valve (15 ') is closed. On the other hand, the exhaust gas is discharged from the ozone gas passage B (12) -solenoid valve (18) -ozone killer (2
0) and the solenoid valves (18 ', 19) are closed. Furthermore,
When continuously producing ozone water so that the concentration of ozone water becomes constant in a short time, after the ozone water is discharged to the outside of the storage tank A (10) and the storage tank B (10 ') before water supply, Pump (2
2) is used to send air into the reaction tube A (5) and the reaction tube B (5 ') via the air passageway (21) and the check valve (24), and unreacted ozone gas is discharged into the exhaust ozone gas passageway (12). ) Is discharged to the ozone killer through the solenoid valve (18), and the reaction cylinder A (5) and the reaction cylinder B are discharged.
(5 ') and the amount of residual ozone gas in the storage tank A (10) and the storage tank B (10') can be maintained constant.

Ozone Water Production Example 1 Dimensions of reaction tube A (5) and reaction tube B (5 '): inner diameter φ70.3 mm × height 112 mm Dimensions of storage tank A (10) and storage tank B (10'): Vertical 100 mm x
126 mm in width x 218 mm in height Using the device having the above dimensions, ozone gas having a concentration of 60,000 ppm was fed at 120 cc / min, and 2 liters / min of water was supplied.
m, 10 ppm and 15 ppm of stable ozone water were obtained. The time required to obtain stable ozone water was 10 minutes, 10 minutes and 15 minutes, respectively.

[0018]

As is apparent from the above description, according to the present invention, it is possible to obtain ozone water of three types of concentration for a constant concentration of ozone gas in a short time.

[Brief description of drawings]

FIG. 1 is a diagram illustrating one embodiment of an ozone water production system of the present invention.

[Explanation of symbols]

 1, 1'Exhaust ozone gas passage A 2, 2'Diffuser 3, 3'Spray nozzle mounting pipe 4, 4'One-liquid nozzle 5 Reaction tube A 5'Reaction tube B 6, 6'Pump 7 Flow path 8, 8'Water level meter 9, 9'Water level meter 10 Storage tank A 10 'Storage tank B 11 Ozonizer 12 Exhaust ozone gas passage B 13 Water supply passage A 13' Water supply passage B 14 Discharge passage 15, 15 ', 16 Solenoid valve 17 Motorized valve 18 , 19 Solenoid valve 20 Ozone killer 21 Air passage 22 Air pump 23, 24 Check valve 25 Discharge passage 26 Solenoid valve

Claims (2)

[Claims] 1. A reaction tube, a spray nozzle provided in the reaction tube, an ozonizer for electrolyzing water to obtain ozone gas, and an air diffuser for discharging ozone gas from the ozonizer into the reaction tube. An ozone water storage tank connected to the lower part of the reaction tube and a reaction tube provided with a liquid pump for discharging the obtained ozone water are connected in series so that two or more ozone gas and water flow countercurrently, Furthermore, an ozone water production system comprising a flow path that allows ozone water to circulate between the storage tanks. 2. The ozone water production system according to claim 1, further comprising an air pump for feeding air into the reaction tube, and an ozone killer connected to an upper portion of the reaction tube to decompose and detoxify ozone gas.