KR20020048581A - Method for dissolution of ozone and oxygen utilizing water pressure and apparatus therefor - Google Patents

Abstract

PURPOSE: A method and an apparatus for dissolving ozone and oxygen using water pressure are provided to reduce facility and operation costs by sensing bubbles finely crushed adjacent to the water surface by vortex and natural down flow to deep waters and pressurized dissolving ozone and oxygen using water pressure thereof. CONSTITUTION: The apparatus for dissolving ozone and oxygen using water pressure comprises a gas-liquid mixing tank(1) at the upper part of which a ventilation valve(3) is equipped so that the gas-liquid mixing tank is sealed, and the lower part of which is opened so that a hose or spiral pipe(5) is connected to the lower part of the gas-liquid mixing tank(1); injection nozzles(8) which are constructed so that the injection nozzles(8) are floated onto the surface of water contained in the gas-liquid mixing tank(1) and inject water from the inclined upper direction for the surface of water in the tank in a vortex generation direction; an ozone and oxygen supply pipe(9) which is continuously connected from an ozone and oxygen generator(10) to the lower part of water depth in the tank; and a diffusion pipe(11) which is installed at the front end of the ozone and oxygen supply pipe(9).

Description

Ozone and Oxygen Dissolving Method and Apparatus Using Water Pressure {METHOD FOR DISSOLUTION OF OZONE AND OXYGEN UTILIZING WATER PRESSURE AND APPARATUS THEREFOR}

The present invention relates to a method and apparatus for purifying contaminated water in waters such as lakes, dams, reservoirs, water purification plants, etc. and for supplying dissolved oxygen at high concentrations to deep waters or bottoms lacking dissolved oxygen.

Oxygen is indispensable to water, and lack of oxygen in the water leads to an environment in which organisms cannot reproduce in the water, and the ecosystems of animals and plants that live in the water collapse.

Therefore, in order to improve such a situation, it is required to supply oxygen artificially while preventing the inflow of pollutants.

On the other hand, ozone has a strong oxidation and sterilization ability compared to chlorine, has a short reaction time, and after reaction, it is directly reduced to oxygen without generating trihalomethane. The use is expanding in each field.

In particular, the reaction between ozone and natural organics is a substance that most of the resulting intermediates or reaction products can be decomposed, reused and processed in the material reduction cycle of the natural ecosystem, and have great benefits for the ecosystem or the environment. have.

However, in order to efficiently use expensive oxygen or ozone gas effective for water treatment, it is most effective to dissolve and use these gases in water. Therefore, as a means of supplying oxygen dissolved at a high concentration in deep water or a low water in a dam or the like, convection is generated by generating an upflow due to the rise of bubbles by installing a pipe standing upright in the deep water and blowing compressed air therein. Or a method of supplying compressed air to a submersible pump installed at the bottom of the water and stirring it is known and practiced.

In addition, in some cases, dissolving gas in water is carried out under pressurized conditions.

However, the method of blowing air to the deep portion of the above method is to generate a rising flow of bubbles, and in particular, it does not reach to increase the dissolution efficiency.

In general, Henry's law is known to increase the dissolution efficiency of gas in liquids under pressurized conditions, but even if air bubbles exceed the water pressure at the moment when the bubbles are blown into the deep water, the solubility of the target is very high. Low.

In addition, dissolution of gas in water under pressurized conditions has a limitation in its use due to the high facilities and power costs required for pressurization under the present conditions.

As described above, the present invention addresses the actual situation, and in particular, pays attention to the use of natural water pressure, and sends bubbles that are finely pulverized near the surface of the water to deep water by vortices and natural drops, and uses ozone and oxygen by using the water pressure. It aims to reduce the cost of supplying oxygen to deep waters such as dams and deep seas by pressurizing and melting, and to increase the amount of dissolved oxygen in the waters while reducing operating costs.

1 is a schematic view showing an example of the oxygen dissolving device of the present invention, the tank inside is a cross-sectional view shown in cross-section,

2 is a plan view of the inside of the tank of the apparatus and

3 is a schematic sectional view according to one example of the upper part in the tank of the apparatus.

* Explanation of symbols for the main parts of the drawings

1: gas-liquid mixing tank 2: float

3: vent valve 4: ozone residual gas cracker

5: hose or spiral pipe 6: submersible pump

6 ′: Upstream dam 7: Water piping

8: injection nozzle 9: ozone / oxygen gas piping

10: ozone / oxygen generating device 11: diffusion tube

12: surface rectifier plate 13: weight for stabilizing the hose

That is, a feature of the present invention, which is suitable for the above object and achieves the desired purpose, is to generate vortex by injecting water from the upper portion of the tank outer periphery to the liquid level in the gas-liquid mixing tank floated on the water surface to generate a vortex. At the same time, the air bubbles are made finer by inducing oxygen or released ozone and oxygen gas, and the bubbles are naturally discharged from the lower part of the tank together with the swirling flow through a hose or spiral pipe, and the ozone and oxygen are dissolved using natural water pressure according to the depth. And ozone / oxygen dissolution method using water pressure which discharges into deep water of required water depth and increases dissolved oxygen amount.

Here, the water sprayed from the upper side of the inclination with respect to the liquid level can be used in addition to the water pulled up by the submersible pump, water from the upper dam or the inflow stream having a level difference, and the use of water supplied by any one or a combination thereof. This is preferred.

In addition, by sealing the upper part of the gas-liquid mixing tank while leaving the vent valve part, expensive gases such as oxygen, ozone, and carbon dioxide can be dissolved without waste, and ozone and oxygen gas are diffused from the bottom of the water in the mixing tank. It is also characterized by increasing the mixing efficiency by releasing by the tube and causing the air bubbles to rise to the jet flow from the top.

Claim 5 is a device for performing the dissolution method, the upper portion is sealed with a vent valve portion, the lower end is made of a gas-liquid mixing tank is connected to the hose or spiral pipe is connected to the lower portion, the tank may float on the water surface At the same time, an injection nozzle for injecting water from the upper part of the tank toward the vortex generation direction from the incline with respect to the liquid level in the tank is installed at the upper part of the tank, and the ozone / oxygen supply pipe from the ozone / oxygen generator is connected to the tank. It is characterized by the constitution provided in the water depth lower part in the inside, and the diffusion pipe provided in the front-end | tip.

The ozone / oxygen dissolving method and apparatus of the present invention generate vortices by spraying water drawn up by an underwater pump or the like from the upper side of the gas-liquid mixing tank to the surface of the gas-liquid mixing tank to dry the oxygen and ozone / oxygen gas at the top of the tank in the vortex. Bubbles that lost this refined buoyancy while being refined by vortex flow into the deep water with high water pressure through the hose, etc., and naturally flow down through the hose, etc. Or can be supplied to the bottom layer.

In this case, it is possible to simply supply oxygen to the target water depth by making it possible to adjust the length of the hose etc. which are connected to the tank lower part.

In addition, when installing the vent valve in the upper part of a tank, opening the said vent valve of the upper part may also make air atmospheric.

On the other hand, by putting the tank top in a sealed state, expensive gases such as oxygen, ozone, and carbon dioxide can be dissolved without waste.

Embodiment of the Invention

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic view showing an example of an apparatus for carrying out the method of the present invention, FIG. 2 is a plan view of the same main part, FIG. 3 is a schematic cross-sectional view of the upper part of the tank, and in the drawing, reference numeral 1 denotes a gas-liquid mixing tank, In the illustrated example, the float 2 is installed on the side to float on the water surface L, and the upper surface is sealed with the vent valve 3 and the ozone residual gas decomposer 4, and the lower side is opened to lower A hose or spiral pipe 5 is connected to the side.

The gas-liquid mixing tank 1 has a water or upstream dam 6 'drawn up by a submersible pump attached to the float 2 or a fixed submersible pump 6 through a pipe 7 above the tank. The nozzle 8 which injects water, etc. which flows down is an upper part in a tank, and it is installed so that it may inject from the upper side inclined with respect to the liquid level in a tank from the upper part in a tank, and the tip of the nozzle 8 faces sideways, It is supposed to generate vortex.

In the illustrated example, the upper surface of the tank 1 has a vent valve 3 and is in a closed state, but there is no problem even if it is open. However, in order to be able to dissolve expensive gases such as oxygen, ozone, carbon dioxide, and the like without waste, the upper surface is preferably in a sealed state.

In addition, the upper surface of the tank 1 is provided with a water level rectifying plate 12 in order to prevent cavitation of the rotational center caused by the swirl flow and to stabilize the floating of the tank.

In the above, the tank 1 may open the air when the upper vent valve 3 is opened, but the ozone / oxygen generator 10 is connected to the tank 1 from time to time through the pipe 9 from the upper surface of the tank 1. It is advantageous to supply ozone and oxygen.

At this time, the lower part of the pipe (9) is provided with a diffusion pipe for discharging gas from the bottom of the water depth in the tank (1), the gas is released therefrom and the floating bubbles are incorporated into the flow from the top to increase the mixed dissolution efficiency Is making it possible to raise.

In addition, although the said tank 1 floats on the water surface in the example shown, you may assemble the said apparatus in a presidential election or a ship. In this case, in addition to the water drawn up by the submersible pump 6, water from an upstream dam 6 'having a water level difference or an inflow stream may be used, and these may be appropriately used in combination. The device may be floated or fixed in a tank installed on land and treated according to the same principle.

On the other hand, the hose or spiral pipe 5 connected to the lower portion can also be supplied with oxygen easily to the target water depth by enabling the length adjustment as appropriate or by using a hose or spiral pipe having a different length and shorter dimension. In this case, the deeper the discharge depth, the better the dissolution efficiency. The hose stabilizing weight 13 is provided at the lower end of the hose 5 or the like, and stabilization is achieved.

In this way, water is ejected to the water surface of the gas-liquid mixing tank 1 of the ozone-oxygen dissolving device from the inclined upper side to generate vortices, thereby refining the oxygen at the top of the tank and the released ozone-oxygen gas, and minimizing it. When this micronized bubble loses its buoyancy and flows down into the deep water with high water pressure through the hose (5), it is gradually reduced in natural water pressure and is dissolved in water to discharge the dissolved water into the deep water or the lower layer. Thereby supplying oxygen to the body of water.

In addition, the ozone gas which is not dissolved by being supplied from the ozone generator is opened by the ozone decomposer 4 or the air open-air valve 3, so that the tank is at the same pressure as the atmospheric pressure and the water level is stabilized.

Oxygen supply according to the present invention is useful for promoting the decomposition of organic matters such as residual foods or fish droppings that have settled on the bottom of the farm, elimination of oxygen deficiency due to the increase in water temperature, and prevention of the reduction of reducing bacteria by oxygen deficiency. It is very effective for improving soil and preventing root erosion by supplying oxygen to reservoirs and supplying oxygen to agricultural water.

In addition, ozone supply is effective in oxidizing, decomposing and stabilizing organic matters and suppressing algae or algae in aquaculture plants, water purification plants, sewage treatment plants, aquariums and oil bath facilities.

This invention by the above description is not limited to the said Example, Of course, it can change suitably in the range which does not deviate from the summary of this invention.

As described above, the present invention generates a vortex by injecting water supplied by a submersible pump or the like from the upper part of the outer periphery of the tank from an inclined upper side to the liquid level in a tank in which the lower end floating on the water surface is opened. It is a method of mixing ozone and oxygen efficiently by using natural water pressure by minimizing the bubbles that mix and dry them, by dissolving and mixing the bubbles, which loses buoyancy, by naturally flowing them through a hose connected to the lower part of the tank. Vortex is generated by spraying the water surface of the mixing tank from above the incline to induce oxygen in the upper part of the tank to refine the air bubbles, and the water is naturally discharged through the hose into the deep water with high water pressure through the hose. Gradually dilute it, dissolve it in water, and discharge the water dissolved in this ozone and oxygen into the lower water body. It is can supply oxygen to deep sea water reverse or low, a lack of dissolved oxygen by an efficient and has a remarkable effect of simply and reliably increase the amount of dissolved oxygen in the deep reverse at a low cost compared with the conventional method.

At this time, even in the case of large-capacity treatment, since there is almost no pressure in the tank part, the power cost required for dissolution is lowered compared to the conventional one, and can be suppressed to about 1/5, and since the gas-liquid mixing tank is sealed, it does not waste expensive oxygen or ozone gas. It can be used effectively.

In addition, there is an advantage in that the floating surface type is easy to move, and by adjusting the length of the hose connected to the lower part of the tank, oxygen can be easily and simply supplied to the desired water depth.

In the apparatus of the present invention, when the apparatus is assembled to a presidential ship or a ship and a generator or an oxygen generator is loaded, the work in a wider range is possible.

In addition, in the ozone treatment, it is simply completed by remodeling a conventional treatment facility, and thus it is possible to realize a reduction in construction cost and a reduction in operating cost by improving melting efficiency.

Claims (5)

In the gas-liquid mixing tank floating on the water surface, vortices are generated by injecting water from the upper side of the tank outer periphery with respect to the liquid level, causing oxygen, ozone, and oxygen gas in the tank to be rolled out, thereby minimizing the bubbles and turning the bubbles. It flows down naturally from the lower part of the tank through a hose or spiral pipe and dissolves ozone and oxygen using natural water pressure according to the water depth, and discharges it into the deep water of the required water depth to increase the amount of dissolved oxygen in the water body. Ozone-oxygen dissolution method using water pressure to The method of claim 1, Ozone using water pressure, characterized in that the water sprayed from the upper side of the inclined surface to the liquid level is water supplied by any one or a combination of water drawn up by an underwater pump, an upper dam having a level difference, or water from an inflow stream. Oxygen Dissolution Method. The method according to claim 1 or 2, An upper portion of a gas-liquid mixing tank is sealed with a vent valve portion to dissolve expensive gases such as oxygen, ozone, carbon dioxide, and the like without waste. The method according to any one of claims 1 to 3, An ozone / oxygen dissolving method using water pressure, wherein ozone / oxygen gas is discharged from the lower portion of the mixing tank by a diffusion tube, and the floating bubbles are incorporated into the fractionation from the upper portion to increase the mixing dissolution efficiency. The upper part is sealed with a vent valve part, and the lower part is made up of a gas-liquid mixing tank having a hose or spiral pipe connected to the lower part, and the tank is configured to float on the surface of the tank, and the tank from the upper part of the tank at the upper part of the tank. An injection nozzle for injecting water in the direction of vortex generation from the inclined upper side with respect to the inner liquid level is installed, and an ozone / oxygen supply pipe is installed in the tank in the bottom of the water depth from the ozone / oxygen generator, and an exhaust pipe is installed at the tip thereof. Ozone-oxygen dissolving apparatus using water pressure, characterized in that there is.