KR101192809B1 - Apparatus for Generating Water Containing Micro-Nano Bubbles - Google Patents

Abstract

The present invention relates to an ultra-fine bubble water generator, and more particularly, by connecting the liquid supply unit, the gas injection unit, the venturi injector, the compression rotary unit and the injection unit in sequence to receive gas such as air, ozone, pure oxygen, etc. The present invention relates to an ultrafine bubble water generator capable of generating a large amount of highly concentrated ultrafine bubble water by bubbling in water with a size of micrometer or less.
The ultra-fine bubble water generator according to the present invention generates a large amount of high concentration bubble water by bubbling various gases in the water with a micro-nano size to purify waste water, water purification, river and lake water purification, sterilization of water bodies, oxygen It can be effectively used in various industries such as supply and food hygiene industry.

Description

Apparatus for Generating Water Containing Micro? Nano Bubbles}

The present invention relates to an ultra-fine bubble water generator, and more particularly, by connecting the liquid supply unit, the gas injection unit, the venturi injector, the compression rotary unit and the injection unit in sequence to receive gas such as air, ozone, pure oxygen, etc. The present invention relates to an ultrafine bubble water generator capable of generating a large amount of highly concentrated ultrafine bubble water by bubbling in water with a size of micrometer or less.

Conventionally, micro-bubbles have been used in various fields such as air flotation, ozone reaction, sterilization, agricultural and fisheries in water treatment, washing, washing, food processing, hydroponics, fish farming, and medicine.

Such research on microbubbles (microbubbles) has been carried out, and Takahashi of Japan Institute of Industrial Technology is a bubble diameter at the time of research on microbubbles and nanobubbles. (Μm) bubbles and bubbles having diameters ranging from several micrometers to several hundred nanometers were divided into micro-nano bubbles.

The reason for this is that the micro-bubble is contracted by the water itself and shrinks into nano-bubbles to dissolve. On the other hand, the micro-nano-bubbles are rapidly contracted and reduced to nano-bubbles and survive in water for a long time. In addition, the surface of the bubble is charged with electricity, and oxygen micro-nano bubbles have an active effect on living organisms, while ozone micro-nano bubbles have a strong bactericidal effect.

In particular, the hydrogen peroxide / UV irradiation in parallel treatment to generate OH radicals during the oxidation of the hardly decomposable substance in the water treatment, it was confirmed that the ozone micro-nano bubble has the same effect, close to the Institute of Industrial Technology.

The microbubble generation method is largely classified into the overflow turbine method, the swinging method, and the line mixer method. Among them, the line mixer method is known to generate bubbles having a smaller diameter. The line mixer system is composed of a linear mixing tube connected to a pressure pump, and a pressurizing tube connected to the mixing tube. The liquid is pressurized by the pressurized pump and the compressed air is introduced into the linear mixing tube so that the liquid and gas are mixed. After being pressurized in and discharged into the water through the discharge tube to generate micro bubbles.

However, for generating micro-nano bubbles, bubbles having a smaller diameter are required. In the existing bubble generating device, since the mixing is performed at the first stage and pressurized at the second stage, the micro-nano bubbles have a smaller diameter. There is a problem in generating.

Accordingly, the present inventors have made efforts to solve the problems of the prior art, and as a result, by connecting the liquid supply unit, gas injection unit, venturi injector, compression rotary unit and the injection unit in order to connect the gas, such as air, ozone, pure oxygen several micro When bubbled in water to a size of less than a meter, it was confirmed that a large amount of high concentration ultra-fine bubble water can be generated by using a device of a simple structure, the present invention was completed.

An object of the present invention is to provide an ultra-fine bubble water generator that can generate a large concentration of ultra-fine bubble water.

In order to achieve the above object, the present invention provides a liquid supply unit for introducing a liquid into the device; A gas injection unit for injecting gas into the liquid introduced through the liquid supply unit; A venturi injector configured to pressurize and eject the gas-containing liquid generated by the gas injection unit; A compression rotating unit for inducing a centripetal spiral motion by rotating collision of the gas-containing liquid ejected from the venturi injector; And an injection unit generating an ultra-fine bubble water by injecting the gas-containing liquid ejected from the compression rotating unit through the porous plate.

The ultra-fine bubble water generator according to the present invention generates a large amount of high concentration bubble water by bubbling various gases in water with a micro-nano size using a simple structured device to purify wastewater, purified water, rivers and lakes. It can be effectively used in various industrial fields such as sterilization and disinfection of water bodies, oxygen supply, and food hygiene industry.

1 is a schematic diagram of an ultra-fine bubble water generator according to the present invention.
2 is a cross-sectional view of the ultra-fine bubble water generator according to the present invention.
3 is a schematic view of the compression rotating part of the ultra-fine bubble water according to the present invention.

The invention provides a liquid supply for introducing a liquid into the device; A gas injection unit for injecting gas into the liquid introduced through the liquid supply unit; A venturi injector configured to pressurize and eject the gas-containing liquid generated by the gas injection unit; A compression rotating unit for inducing a centripetal spiral motion by rotating collision of the gas-containing liquid ejected from the venturi injector; And an injection unit generating a very fine bubble water by injecting the gas-containing liquid ejected from the compression rotating part through the porous plate.

Specifically, the ultra-fine bubble water generator of the present invention sequentially connects the liquid supply unit, the gas injection unit, the Venturi injector, the compression rotating unit, and the injection unit, so that gases such as air, ozone, pure oxygen, etc. may have a diameter of 100 nm to 50 μm. By bubbling in water, a large quantity can generate | occur | produce high concentration extremely fine bubble water.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

As shown in FIGS. 1 and 2, the ultra-fine bubble water generator according to the present invention includes a liquid supply part 21, a gas injection part 22, a venturi injector 27, a compression rotating part 28, and an injection unit ( 29).

In the present invention, the liquid supply unit 21 introduces the liquid into the device through a suction pump (not shown). The liquid supply unit 21 is provided with an automatic valve (not shown) for adjusting the flow rate and the supply amount of the liquid.

Gas supplied to the liquid supplied from the liquid supply unit 21 is injected by the gas injection unit 22. The gas may be air, ozone, pure oxygen, or the like. The gas injection unit 22 is an ozone generating unit (not shown) for generating ozone, an ozone injecting unit 24 for injecting ozone into a liquid by receiving ozone generated from the ozone generating unit, and suction for inhaling external air It includes a pump (not shown) and an air inlet 26 for receiving air supplied from the suction pump to inject air into the liquid.

The ozone injection unit 24 and the air injection unit 26 may be provided with an automatic valve (not shown) to adjust injection according to the injection amount of ozone and / or air, and ozone injection of the gas injection unit 22. The unit 24 and the air injection unit 26 are means for injecting ozone and air, respectively, but are not limited thereto, and may inject other gases.

The suction end of the suction pump is provided with a check valve (not shown) to prevent the back flow of gas and liquid, and to prevent the inflow of foreign substances.

As such, the gas-containing liquid is pressurized while passing through the inside of the venturi injector 27 in which the negative pressure is formed, and is ejected to the compression rotating unit 28 at a high flow rate.

In the present invention, the venturi injector 27 has a tubular shape in which the cross-sections at both ends thereof are larger than the cross-sectional area at the center, and the fluid acceleration nozzle 36 capable of introducing a gas-containing liquid into the vacuum from the gas inlet 22 inside the tube. ) Is installed. Accordingly, since the gas-containing liquid is ejected while colliding with the narrow inner wall of the venturi injector 27 when passing through the venturi injector 27, the gas-containing liquid is ejected to the compression rotating unit 28 at a high flow rate while increasing the solubility of the gas.

As shown in FIG. 3, the compression rotation part 28 has a reverse conical penetrating part 70 which gradually widens from the gas-containing liquid inflow outflow from the venturi injector 27 to the inside of the tube. On the outer circumferential surface of the through part is provided with a spiral screw-shaped protrusion 71, the inside of the through part is provided with a fixed shaft 72 for fixing the compression rotating unit 28 in the ultra-fine bubble water generator, The fixed shaft 72 penetrates through the first perforated plate of the first injection unit, which will be described later, and is fixed to the upper portion of the through part 70 of the compression rotating part 28 and the space part of the second injection unit in the lateral direction.

Accordingly, the gas-containing liquid ejected from the venturi injector flows into the outside of the through part 71 of the compression rotating part 28, and the gas-containing liquid introduced into the outside of the through part 71 has a spiral screw-shaped protrusion ( By hitting 71), bubbles (bubbles) are finely pulverized and at the same time form vortex mixing, which is quickly ejected to the injection unit 29 in a centripetal spiral motion.

The gas-containing liquid receives centrifugal force by centripetal spiral movement when the gas-containing liquid moves through the compression rotating unit 28, and thus the central pressure of the compression rotating unit 28 is relatively lowered. Therefore, the dense water is condensed out of the center by the centrifugal force, and the small-density gas molecules (air, oxygen, ozone, etc.) are separated from the water molecules, so that very fine bubbles are easily activated.

The activated gas-containing liquid is bubbled by fine particles due to the cavitation phenomenon due to the pressure drop and the collision and disturbance effect by the helical screw type protrusion (not shown) by the compression rotating portion 28 having the inverted cone-shaped penetrating portion. It produces a liquid containing (bubbles).

The gas-containing liquid ejected from the compression rotating unit 28 is injected through a plurality of holes (not shown) of the injection unit 29 to produce extremely fine bubble water. The injection unit 29 includes a first injection unit 31, a second injection unit 32, and a space part 33.

The first injection unit 31 is a tubular shape in which a through part having a diameter larger than the diameter of the compression rotating part 28 is formed, and a first perforated plate 61 having a hole having a diameter of 0.1 to 0.5 mm is provided at an upper end thereof. In addition, the second injection unit 32 has a through portion formed in a braille widening from the inlet of the gas-containing liquid ejected from the first injection unit into the inside of the tube, the upper end is formed with a hole of 1mm ~ 1.5mm in diameter A second perforated plate is provided.

In addition, a through part (not shown) is formed at the center of the first perforated plate and the second perforated plate to penetrate the fixed shaft 72 of the compression rotating part.

The space part 33 is spaced apart from the first perforated plate 61 of the first injection unit 31, and is formed in an inverted cone shape at the center of the second perforated plate 62 of the second injection unit 32. The through part (not shown) which penetrates the fixed shaft 72 of a rotating part is formed.

The gas-containing liquid introduced into the first injection unit 31 of the injection unit 29 passes through a hole having a fine diameter of the first perforated plate 61 of the first injection unit 31, and is affected by the collision and disturbance effects. As the bubbles are more finely pulverized and mixed, the microbubbles are formed in the liquid and ejected to the second injection unit 32, and the gas-containing liquid introduced into the second injection unit 32 is the first perforated plate 61. A large amount of ultra-bubble water is generated while passing through the hole of the second perforated plate 62 of the second injection unit 32 having a larger hole.

The space portion 33 reduces the residence time of the gas-containing liquid, and forms a fluid flow in the centripetal spiral direction in the second injection unit 32 to increase the flow rate of the gas-containing liquid 32. It is mounted in the reverse cone in the center of the perforated plate.

As described above, the ultra-fine bubble water generator according to the present invention may contain various gases in a liquid through a separate gas injection unit 22 and pass through a venturi injector 27 in which a negative pressure is formed therein. While maximizing the flow rate of the gas containing liquid while improving the solubility of the gas contained in the liquid. The gas-containing liquid accelerated in this way is accelerated by collision and centripetal spiral motion through the compression rotating unit 28 of the ultra-fine bubble water generator, and activated in a state where micro-nano bubbles are easily formed, and the dispersion unit 29 The water agglomerated by collision with the first and second perforated plates while passing through the first and second perforated plates of) is pulverized into fine water particles to generate ultra-bubble water.

In the present invention, the control unit (not shown) is a liquid supply unit 21, gas injection unit 22, Venturi injector 27, compression rotation unit 28 and the injection unit 29, the flow rate, temperature, pH, etc. It can be measured and monitored, and based on this, it is electrically connected to the driving means of the liquid supply unit 21 and the gas injection unit 22 to control the operation.

The ultra-fine bubble water generator according to the present invention generates a large amount of high concentration bubble water by bubbling various gases in water with a micro-nano size using a simple structured device to purify wastewater, purified water, rivers and lakes. It can be effectively used in various industrial fields such as sterilization and disinfection of water bodies, oxygen supply, and food hygiene industry.

As described above in detail specific parts of the present invention, it will be apparent to those skilled in the art that these specific descriptions are merely preferred embodiments, and thus the scope of the present invention is not limited thereto. will be.

21: liquid supply part 22: gas injection part
24: ozone injection unit 26: air injection unit
27: venturi injector 28: compression rotating part
29: injection unit 31: the first injection unit
32: second injection unit 33: space part
36: fluid acceleration nozzle 61: the first perforated plate
62: second perforated plate 70: through part
71: protrusion 72: fixed shaft

Claims (5)

Ultra-fine bubble water generator, including:
A liquid supply for introducing liquid into the apparatus;
A gas injecting unit for injecting gas into the liquid introduced through the liquid supply unit and including an ozone generating unit, an ozone injecting unit, a suction pump, and an air injecting unit;
A venturi injector configured to pressurize and eject the gas-containing liquid generated by the gas injection unit;
Rotating collision of the gas-containing liquid ejected from the venturi injector to induce a centripetal spiral movement, a through portion is formed to gradually widen into the inner side of the tube, a spiral screw-shaped protrusion is formed on the outer peripheral surface of the through portion, Inverted conical compression rotating portion that the fixed shaft is mounted in the transverse direction therein;
A first injection unit having a first perforated plate having a through-hole having an inner diameter wider than an inner diameter of the compressed rotation part, and having a hole having a diameter of 0.1 mm to 0.5 mm at an upper end thereof; A second injection unit having a second perforated plate having a through hole extending from the inlet of the gas-containing liquid ejected from the first injection unit to the inside of the tube and having a hole having a diameter of 1 mm to 1.5 mm An injection unit having a space portion provided in the form of an inverted cone in the center of the perforated plate of the second injector, spaced apart from the perforated plate of the first injector, by spraying through the microbubble; And
Control unit for controlling the operation of the liquid supply unit, gas injection unit, Venturi injector, compression rotary unit and the injection unit.
delete delete delete The apparatus of claim 1, wherein the liquid supply unit and the gas injection unit include an automatic valve for adjusting liquid and gas supplies and a check valve for preventing backflow of liquid and gas.

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