JP2981828B2 - Control Method of Oxidation Reduction Potential and Dissolved Gas of Combined Acoustic Generated Jet Water - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the oxidation-reduction potential of water and
The present invention relates to a method for changing a dissolved gas amount .

[0002]

2. Description of the Related Art It is known that oxidation and reduction of water is performed to change its potential, and the water is used in various industries and the like, and apparatuses for this purpose have been put to practical use.

[0003] The water obtained by this apparatus is useful for maintaining freshness of crops, cultivation without pesticides and improving cultivation efficiency in agriculture, and maintaining freshness of fish and shellfish in the fishing industry.
It can be effectively used for chemical-free cultivation and fishing.

[0004] In the livestock industry, it is also effective in raising livestock without chemicals, improving the environment to prevent livestock pollution, and maintaining the freshness of livestock products. In the food industry, it is also useful for maintaining the freshness by using oxygen-free water.

[0005] Further, in the water purification industry, the treatment performance of drinking water and sewage is improved. In the brewing industry, such as alcoholic beverages, improve quality and productivity, and in the fields of medicine and pharmacy, improve drug efficacy and preventive medicine.
In industry, it is effective in preventing oxidation by converting industrial water to oxygen-free water. In addition, it is widely used for various environmental improvements.

It is also known that the above-mentioned oxidation-reduction potential changes by blowing air into water or irradiating water with sound waves.

It is also known that the above-mentioned change in the oxidation-reduction potential is caused by injecting N ₂ gas by an aeration method. FIG. 4 shows the dissolved oxygen (D
O) shows the change in the amount. The horizontal axis is time (unit is 1 hour), and the vertical axis is dissolved oxygen (DO) amount, and the unit is ppm. FIG. 5 shows the change in the oxidation-reduction potential in that case, where the horizontal axis represents time (unit is 1 hour), and the vertical axis represents the oxidation-reduction potential (unit is × 100 mV). In both figures, N _{2 at} point A
The injection of gas is started, the injection is stopped at point B, and then the container is left in an open state. As seen in both figures, a change in the change and the redox potential in the dissolved oxygen amount when injected with aeration method with N ₂ gas into the water in the open state occurs, but the variation is very insignificant It is.

Next, in addition to injecting N ₂ gas into water as described above, in addition to injecting N ₂ gas into the water, the air injected to the retained water in the tank previously filed by the same applicant as the present application has been filed. Or the injection amount and irradiation of oxygen and N ₂ gas
Comprising a controllable control device and the amount of sound waves, controlled adjustment by pre SL control device the amount of both the illumination of the air or oxygen, N ₂ gas injection and the waves, and, both at the same time Water dissolution using a redox potential control device
6 and 7 show the results when the gas and the oxidation-reduction potential were changed.

In both figures, injection of N ₂ gas is started at point A, injection is stopped at point B, and the container is left as it is in an open state. In FIG. 6, the horizontal axis represents time (unit is 1 hour), and the vertical axis represents dissolved oxygen (DO) amount, and the unit is ppm. As shown in FIG. 6, the change in the amount of dissolved oxygen (DO) decreases to near zero. FIG. 7 shows the oxidation-reduction potential of water in this case. The horizontal axis represents time (unit is 1 hour), and the vertical axis represents oxidation-reduction potential (unit is 100 mV).
It is. As can be understood from this figure, the oxidation-reduction potential decreases immediately after the treatment, but returns to the original state if left untreated, and further increases, and is in an unstable state.

[0010]

As described above, in the conventional apparatus, there is also provided an apparatus for obtaining water having a desired value with respect to one of a dissolved oxygen (DO) amount and an oxidation-reduction potential. An apparatus having both desirable values has not been obtained. The present invention focuses on such points,
It is an object of the present invention to provide an apparatus capable of obtaining treated water having desirable values for both a dissolved oxygen amount and an oxidation-reduction potential.

[0011]

According to the present invention , an automatic water supply system is provided in a water retention chamber 15 of a closed tank 13 according to the present invention.
A step of supplying raw water at a location 7 to obtain a predetermined amount of retained water;
Gas formed above the level of the stagnant water in the closed tank 13
N ₂ gas is supplied to the retention chamber 14 via the pressure adjusting device 2
And circulating the retained water in the closed type tank 13
The water jet from the water gas circulation pump P _1, sealed tank 1
3. Air or oxygen is mixed outside with gas-liquid mixed water
And supplied to the composite sound wave generating jet water gas mixing device 8
In both cases , the N ₂ gas is charged inside the closed tank 13.
And then mixed with the gas-liquid mixture and radiated with sound waves
Injecting water into the stagnant water while the closed tank 1
The finger detects the detection value of the oxidation-reduction potential detection sensor 12 provided in
The value is adjusted by the redox potential indicating regulator 10 which outputs the reading.
The step of controlling the amount of the jet water and the intensity of the sound wave to be irradiated
And the treated water in the closed tank 13 is closed.
This can be solved by a method for controlling the oxidation-reduction potential and dissolved gas of the composite sound wave-producing jet water , which comprises the step of taking out from the treated water take-out port E of the ink 13 .

[0013]

[Action] The water jets that will be output from the water gas circulation Pont <br/> flop circulating the accumulated water in the tank, outside the sealed tank
When the Ru is mixed efficiently with air or oxygen co
Then, N ₂ gas was mixed inside the closed type tank.
And injected into the accumulated water in the waves together with Te, the dissolved gas amount
Changing the redox potential. The closed-type tank efficiently dissolves the gas supplied under pressure to the upper space in water, and changes the dissolved gas amount of water. In addition, the hermetic type makes the changed oxidation-reduction potential value stable without change over time.

An oxidation-reduction potential indicator adjuster for outputting an indication value according to a detection value of an oxidation-reduction potential sensor provided in the tank controls the amount of water output from the water gas circulation pump and the intensity of sound waves emitted. Then, the dissolved gas amount of water and the oxidation-reduction potential are set to desired values.

[0015]

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, reference numeral 13 denotes a closed tank, which is a water retention chamber 15 for retaining treated water and N ₂ above the water retention chamber 15.
And a N ₂ gas retention chamber 14 for filling gas. 1 is a N ₂ gas supply unit for supplying a N ₂ gas to the gas retention chamber 14, the gas is supplied to the gas retaining chamber 14 through the pressure regulator 2 from the device. Reference numeral 3 denotes a pressure gauge for detecting the gas pressure in the gas storage chamber 14, and reference numeral 4 denotes a safety device which operates when the gas pressure in the gas storage chamber 14 becomes dangerous.

Reference numeral 5 denotes a pressure adjusting device for adjusting the gas pressure in the gas storage chamber 14, through which excess gas is released from the excess gas outlet B to the outside. 6 is a gas purification unit, always shall clean the gas in the gas residence chamber 14 with a gas circulation pump P ₂ which is connected purified by circulating gas in the gas residence chamber 14 to this. 7 is an automatic watering system, to adjust the amount of water supplied through the introduced raw water valve V ₁ from the raw water inlet of the code A, and an appropriate amount things the amount of accumulated water in the water holding chamber 15..

[0017] 8, air or oxygen is injected to the front SL accumulated water in the sealed tank 13, the injection amount of _{N 2} gas and
And a controllable control the amount of sound waves to be irradiated, the control adjusts the upper <br/> Symbol air or oxygen, the amount of both the illumination of the injection and the waves of the N ₂ gas by the front Symbol CONTROLLER In addition, it is a water oxidation-reduction potential control device that performs both of them simultaneously, and is hereinafter referred to as a composite sound wave generating jet water gas mixing device.

Circulating the accumulated water in the closed type tank 13
The water jet from the water gas circulation pump P _1, sealed tank 1
3. Air or oxygen is mixed outside with gas-liquid mixed water
And supplied to the composite sound wave generating jet water gas mixing device 8
In both cases , the N ₂ gas is charged inside the closed tank 13.
And then mixed with the gas-liquid mixture and radiated with sound waves
While spraying into the stagnant water. In the figure, reference numeral 16 denotes water gas circulation.
The output side of the ring pump P _1, i.e., outside of the sealed tank 13
A 'indicates the air or oxygen supply device provided at
And C indicates the gas retention chamber 14 in the closed type tank 13.
Combined sound wave generating jet-type water-gas mixing device for N ₂ gas arranged
8 shows an N ₂ gas inlet for introduction.

Reference numeral 9 denotes a pump motor speed control device,
The rotation speed control of the motor Water gas circulation pump P _1. 1
2 is a redox potential sensor disposed near the bottom of the said water holding chamber 15, measured detected oxidation-reduction potential of the accumulated water in the water retention chamber 15 and outputs the data. 10 is inputted to the redox potential data output from the redox potential sensor 12, by the data, the redox potential indication regulator for outputting an instruction signal required to against control the pump motor speed control device 9, An oxidation-reduction potential recorder 11 records the data.

[0020] E is treated water outlet to take out the finished accumulated water processing, V ₂ is a process water outlet valve connected to the outlet.

The operation of the apparatus according to the present invention will be described below. Raw water supplied through the raw water valve V ₁ from the raw water inlet A into the sealed tank 13 an appropriate amount is introduced by automatic water supply device 7, it retained as retained water in the water holding chamber 15. The retained water by the water gas circulation pump P _1, air or oxygen supply
Is fed into a supply device 16 where air or oxygen is
The water is mixed into gas-liquid mixed water and jetted into a composite sound wave jet water gas mixing device 8 where N ₂ gas is mixed.
The gas-liquid mixing water Ru is jetted circulated together with irradiation of sound waves to standing water.

[0022] illustrates a cross-sectional view of an essential part of the composite wave generation injection Nagareshiki gas water mixing device in FIG. In the figure, reference numeral 21 denotes a cylindrical fixed pipe into which a water jet nozzle 22 having a small diameter is fitted. A gas introduction pipe 23 is attached to an intermediate side wall of the fixed pipe 21, and an introduction opening is provided near a tip of the water injection nozzle 22. Reference numeral 24 denotes a gas / water mixing nozzle fitted to the tip of the fixed pipe 21, and outputs treated water.

The gas-liquid mixed water introduced from the fixed pipe 21 and the input side A ′ of the water injection nozzle 22
With ejected from the second tip, the gas-liquid mixing water N ₂ gas introduced from the input side of the gas introduction pipe 23 is mixed
From the ejection port D,
Is a shall injected into.

The retained water in the water holding chamber 15, an oxidation-reduction potential and the dissolved gas amount is changed by the irradiation with the injection. Stay
The oxidation-reduction potential of water is measured and detected by an oxidation-reduction potential detection sensor 12 arranged near the bottom of the closed type tank 13, and the data is sent to the oxidation-reduction potential instruction controller 10.

The oxidation sent data reduction potential indication regulator 10 is configured to monitor the data, previously set, and the redox potential value, the output amount of the water gas circulation pump P _1, air or oxygen, N according to the relationship between the injection quantity of ₂ gas and sonic irradiation amount, and outputs an instruction signal necessary for control against the pneumatic control equipment for the pump motor speed control system 9 and it is not shown.

The instruction signal air control device is a pump motor speed control device 9 and an unillustrated enter, in accordance with the instruction signal, the output of the water gas circulation pump P _1, air or
Amount of oxygen and N ₂ gas introduced from gas introduction pipe 23
Adjust the injection amount of the scan, also adjusting the irradiation amount of acoustic waves irradiation Isa with the amount of Jo Tokoro, a predetermined amount.

Before such an operation, the closed tank 13
The relative top of the gas residence chamber 14, via a pressure regulator 2 by N ₂ gas supply unit 1, and N ₂ gas is fed
There Ru. The supplied gas is controlled and controlled to a required pressure by a pressure gauge 3, a safety device 4, and a pressure adjusting device 5, and excess gas is discharged from an excess gas jet port B. The gas in the gas storage chamber 14 is supplied to the gas purifier 6 and the gas circulation pump P
₂ keeps it clean at all times. Thus, the control of the dissolved gas is performed.

The oxidation-reduction potential of the retained water is recorded by the oxidation-reduction potential recorder 11 over time. It said redox potential value, the output quantity of water gas circulation pump P _1, setting the relationship between the air or oxygen, the injection amount of N ₂ gas and sonic irradiation amount is finely modify this recorded value based on Can be adjusted.

FIG. 3 shows the results of water treatment by the apparatus embodying the present invention. The figure shows changes in oxidation-reduction potential, where the horizontal axis represents time (unit is 1 hour), and the vertical axis represents oxidation-reduction potential (unit: x100 mV). In the figure, at point A, N ₂
The injection of the gas is started, and the injection of the N ₂ gas is stopped at the point B, and the sealed tank 13 is left as it is for a predetermined period of time while the N ₂ gas is retained as a gas retaining chamber 14 above the sealed tank while maintaining the sealed state. . As described above, the oxidation-reduction potential lowered at the point B slightly increases with time,
It can be said that it is almost in a stable state. The amount of dissolved oxygen (DO) does not increase because a stable state is obtained as shown in FIG.

In this embodiment, the type of gas supplied to the gas retaining chamber is N ₂ gas. However, by selecting the type of gas, a desired gas from highly oxidizing water to highly reducing water can be obtained. It is possible to obtain

Further, the oxidation-reduction potential indication regulator 10 in the present embodiment, the output of the water gas circulation pump P _1, air is injected or oxygen injection amount of N ₂ gas, the dose of sound waves emitted Is controlled, but this combination is arbitrary according to the purpose and the like, and can be changed in any manner.

[0032]

According to the present invention as described above, according to the present invention, the redox potential control device of water using a closed-type tank, a composite wave generation nozzle-type water gas mixing device, air or oxygen,
The N ₂ gas injection and the sound wave irradiation were simultaneously performed to change the oxidation-reduction potential and the amount of dissolved gas , and further, the N ₂ gas was retained in the gas retaining chamber in the tank and dissolved in water. Therefore, treated water having a desired oxidation-reduction potential and a small amount of dissolved oxygen can be obtained.

Further, since the composite sound wave generating jet-type water-gas mixing device is used in a closed tank, the safety is high.

Further, since the N ₂ gas is retained in the closed tank, the gas pressure can be increased, and therefore, the solubility of the gas in water can be increased.

The sound wave irradiation in the composite sound wave generating jet water gas mixing apparatus is effective in increasing the solubility of N ₂ gas in water in the gas retaining chamber.

[0036] The gas in the gas retaining chamber is subjected to a gas refining function.
Impurity gas generated from the water is removed and only high-purity gas is dissolved in the stagnant water at all times, so that high-quality treated water can be obtained.

[0037] can be controlled because the composite wave generation nozzle-type water gas mixing device is capable of controlling the injection quantity of water, air or oxygen, the solubility of the N ₂ gas in water. Therefore, it is also possible to easily control the oxidation-reduction potential.

The jet-type mixing apparatus of the composite sound-generating jet-type water-gas mixing apparatus has the effect of activating water because the clusters (molecular groups) of the staying water can be reduced.

The value of the redox potential can be controlled to a desired numerical arbitrarily by an oxidation-reduction potential sensor and the oxidation-reduction potential indication regulator.

Further, since the oxidation-reduction potential of water is changed without using a chemical, the solubility of the gas in the stagnant water is relatively small except for a part of the gas. Smaller than. Therefore, fine adjustment of the potential is possible. In addition, the proliferation of microorganisms must be a non-chemical becomes possible to perform freely, it is possible to promote the oxidation decomposition of organic matter, it is possible to sound development of plants and animals in the absence of chemicals. In addition, animal and plant weight gain, feed efficiency,
Fertilizer efficiency increases and productivity improves.

By selecting the type of gas, it is possible to obtain safe, inexpensive and high-quality treated water from highly oxidizing water to highly reducing water.

In addition, the device is easy to handle, does not require much time for maintenance, and has the effect of maintaining a healthy and safe living environment.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a jet water gas mixing apparatus according to one embodiment of the present invention.

FIG. 3 is a graph of an oxidation-reduction potential value of treated water obtained by the apparatus of the present invention.

FIG. 4 is a graph of a dissolved oxygen amount when N ₂ gas is injected into water by an aeration method.

FIG. 5 is a graph of an oxidation-reduction potential value when N ₂ gas is injected into water by an aeration method.

FIG. 6 is a graph of dissolved oxygen amount of treated water obtained by a conventional apparatus.

FIG. 7 is a graph of an oxidation-reduction potential value of treated water obtained by a conventional apparatus.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 N ₂ gas supply device 2 pressure regulator 3 pressure gauge 4 safety device 5 pressure regulator 6 gas purification device 7 automatic water supply device 8 composite sound wave generating jet water gas mixing device 9 pump motor rotation speed control device 10 redox potential indication Regulator 11 Oxidation reduction potential recorder 12 Oxidation reduction potential detection sensor 13 Closed tank 14 Gas retention chamber 15 Water retention chamber A Raw water inlet B Excess gas outlet C Mixer gas inlet D Gas-liquid mixed water outlet E Processing Water outlet P ₁ Water gas circulation pump P ₂ Gas circulation pump V ₁ Raw water valve V ₂ Treated water extraction valve

Claims (1)

(57) [Claims] A water retention chamber (1) of a closed type tank (13).
5) Raw water is supplied by the automatic water supply device (7)
And a step of forming the accumulated water above the level of the accumulated water in the closed type tank (13).
N ₂ gas is supplied to the gas retention chamber (14) with a pressure regulator (2).
And a water gas circulation for circulating water retained in the sealed tank (13).
The water jet from ring pump _{P 1,} sealed tank (13)
Mixing air or oxygen outside to form gas-liquid mixed water
When it is supplied to the water jet mixing device (8),
In both cases, N ₂ gas is supplied inside the closed tank (13).
It is supplied to the device (8) and mixed with the gas-liquid mixed water to produce a sound.
A step of injecting into the residence water while irradiating waves, redox potential detecting sensor provided in an enclosed tank (13)
An oxidation-reduction potential finger that outputs an indicated value based on the detection value of the sensor (12).
The amount and the irradiation of the jet water are indicated by the indicator controller (10).
A step of controlling the intensity of the sound wave, and treating the treated water in the closed tank (13) with the closed tank.
Step of extracting through the treated water outlet E of ink (13)
And a method for controlling the oxidation-reduction potential and the dissolved gas of the combined acoustic wave generating jet water.