JP2022128357A - Micro-mist generating method and device therefor - Google Patents

Abstract

To provide a micro-mist generating method for atomizing micro-nanobubble water of carbon dioxide or oxygen into a mist state, and to provide a device therefor.SOLUTION: A micro-mist generating device is constituted of: a T-shaped tee 6 which is connected at a downstream side of a gas-liquid mixer 5, and branches a gas-liquid mixed fluid into two directions being a rectilinear direction and a right-angle direction; a flexible tube pipe 7 which connects one end (start end) in the rectilinear direction of the T-shaped tee 6, and the other end (terminal) in the right-angle direction, and forms a closed loop; a variant form tee connector 11 rotatably connected in the middle of the flexible tube pipe 7; and a nozzle 8 which is connected in the right-angle direction of the variant form tee connector 11, and is made of a terminal closed tube provided with a small hole 12 at a circumferential portion. Air is leaked from the small hole 12 provided at the circumferential portion of the nozzle 8 made of the terminal closed tube, but fluid on a wall surface is atomized in a sprayed form by being vigorously discharged to the outside.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a micro-mist generation method and apparatus for atomizing micro-nano bubble water of carbon dioxide or oxygen into a mist state.

Conventionally, a nozzle called a two-fluid nozzle that mixes liquid and gas is used, and by introducing high-pressure gas into the two-fluid nozzle, the rapid expansion and diffusion of the high-pressure gas create micro-mist.
A micro-mist generation method and device capable of atomizing a liquid in a micro-mist state are known (see Patent Document 1).
In this well-known technology, the liquid is sucked by the negative pressure when the pressurized gas for mist generation is ejected, and the mist ejected from the air-fuel mixture nozzle as a gas-liquid mixture is guided to the introduction pipe and conveyed, and the injection nozzle After being swirled in the inner swirl space, the mist is jetted as micro-mist from a plurality of jet holes.
In this way, by providing the introduction pipe, it is possible to ensure the time for the fine particles misted under the pressurized gas to dissolve the pressurized gas in the liquid, and to enhance the expansion effect of the pressurized gas dissolved inside at the time of injection. In addition, by swirling the mist, the liquid can be uniformly dispersed, and a small amount of liquid and gas can be used to cool a wide area.

Also, there is known a jet injection device developed by the applicant of the present invention that incorporates nanobubbles (ultra-fine bubbles) in mist and injects the mist at high speed (see Patent Document 2).
This known technique consists of a two-fluid nozzle consisting of a cylindrical nozzle outer cylinder and an air connection pipe integrally connected to the nozzle outer cylinder at a right angle, and one nozzle outer cylinder of the two-fluid nozzle containing high-pressure nanobubble water. and a compressor that supplies high-pressure air to the other air connection pipe of the two-fluid nozzle.
With such a configuration, nanobubbles can be mixed in the mist, so that the effect of the gas can be expected by spraying the gas to the destination.

Japanese Patent No. 4239879 Japanese Patent No. 6317505

An object of the present invention is to provide a micro-mist generation method and apparatus for atomizing micro-nano bubble water of carbon dioxide or oxygen into a mist state.

The micro-mist generation method of the present invention includes a nano-bubble water storage step of generating micro-nano bubble water of carbon dioxide or oxygen with a micro-bubble generator and storing it in a bubble water tank;
a jet fluid generation step of mixing high-pressure air from a compressor and micro-nano bubble water from the bubble water tank in a jet generator to form a gas-liquid mixed jet fluid;
The gas-liquid mixed jet fluid is sent to a gas-liquid mixer, and the high-pressure air from the compressor and the gas-liquid mixed jet fluid are mixed, and the gas-liquid mixed fluid is ejected from the gas-liquid mixer at a constant pressure. a fluid ejection step;
A tube tube pressure equalizing step of sending the gas-liquid mixed fluid to the T-shaped cheese connected to the gas-liquid mixer, and connecting the leading end and the terminal end of a flexible tube to the T-shaped cheese to form a closed loop. When,
a micro-mist spraying step of spraying micro-mist from small holes provided in the circumference of a nozzle made of a closed-end tube connected to an irregular cheese connector rotatably connected by dividing the middle of the flexible tube. .

The micro-mist generator of the present invention is connected to a jet generator that mixes high-pressure air from a compressor and micro-nano bubble water from a bubble water tank to form a gas-liquid mixed jet fluid, and is connected downstream of the jet generator. A gas-liquid mixer that mixes the gas-liquid mixed jet fluid of the jet generator with the high-pressure air from the compressor, and is connected to the gas-liquid mixer to branch the gas-liquid mixed fluid into two directions, a straight direction and a perpendicular direction. A flexible tube forming a closed loop by connecting a T-shaped tee to a starting end of the T-shaped tee in a rectilinear direction and an end in a perpendicular direction to each other, and rotatably connecting the flexible tube to the middle of the T-shaped tee. and a nozzle made of a closed end tube having a small hole in the circumferential portion and connected in the direction perpendicular to the variant tee connector.

The micro-mist generating method of the present invention uses a simple mist generating facility due to the combination of a flexible tube and a nozzle. Since the mist does not get wet, it can be installed anywhere. can be freely designed. Also, an aqueous solution of oxygen or carbon dioxide gas in the form of micro-nano bubbles can be sprayed into the ground or in the air by a jet sprayer, and can be effectively used for growing crops and controlling pests.
INDUSTRIAL APPLICABILITY The micro-mist generator of the present invention is a device that can be assembled by anyone with the flexibility of a flexible tube and at a low cost by making use of jet injection device technology, and is suitable for mass production. Conventionally, a device that applies high pressure to a metal nozzle to spray was used. . In addition, the line could not be changed freely, so we had to rely on a specialist, but by using a flexible tube, we were able to change the line to a closed loop and freely design the line where it was needed. It is now possible to supply as much mist as possible.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic explanatory drawing of the micro-mist generator of this invention. It is an expansion explanatory drawing of a nozzle made from a closed end tube. It is explanatory drawing of the mist spray of the nozzle made from a closed-end tube. It is explanatory drawing of the mist spray of another end closed tube nozzle. It is explanatory drawing of the mist spray of the nozzle made from an underground closed-end tube.

An embodiment of the micro-mist generator of the present invention will be described below with reference to the accompanying drawings.
As shown in the schematic diagram of FIG. 1, the micro-mist generator of the present invention comprises a compressor 1 that generates high-pressure air, a micro-bubble generator 2 that generates carbon dioxide nano-bubble water or oxygen nano-bubble water, and the micro-bubbles. A bubble water tank 3 storing carbon dioxide nanobubble water or oxygen nanobubble water from the generator 2, high pressure air from the compressor 1, and carbon dioxide nanobubble water or oxygen nanobubble water from the bubble water tank 3 are mixed to form a gas-liquid mixture. A jet generator 4 that forms a jet fluid, a gas-liquid mixer 5 that mixes the gas-liquid mixed jet fluid from the jet generator 4 and high-pressure air from the compressor 1, and a downstream side of the gas-liquid mixer 5 , and a T-shaped cheese 6 that branches the gas-liquid mixed fluid in two directions, the straight direction and the perpendicular direction, one end (starting end) in the straight direction of the T-shaped cheese 6, and the other end (end) in the perpendicular direction are respectively connected to form a closed loop, a variant cheese connector 11 (see FIG. 2) rotatably connected in the middle of the flexible tube pipe 7, and the variant cheese connector 11 and a closed-end tube nozzle 8 having a small hole 12 in its circumferential portion and connected perpendicularly to the nozzle 8 .

The compressor 1 is used by being directly connected to the jet generator 4, but the compressor 1 may store high-pressure air at a constant pressure in an air tank and use it.
The bubble water tank 3 uses oxygen-bubbled water to effectively keep living things alive, and carbon-dioxide-bubbled water to protect crops from microorganisms such as sterilization. Nanobubbles containing various gases are stored in the bubble water tank 3 for a long period of time and do not disappear immediately.

The microbubble generator 2 connects a gas tank (not shown) containing various gases such as O ₂ and CO ₂ and a reservoir tank (not shown) of stored water, and the microbubble generator 2 generates The nanobubbles are stored in the bubble water tank 3 . The amount of nanobubble particles in the microbubble generator 2 is 1.5×10 ⁸ per 1 mml. There are various other methods for generating nanobubbles, and existing products may be used.

The jet generator 4 draws in bubble water containing various gases from the bubble water tank 3 from one side, and takes in compressed air from the compressor 1 from the other side, so that the bubble water containing various gases and the compressed air are in a gas-liquid mixed state, The nanobubble water that has been pressurized by the diaphragm pump is sent to the gas-liquid mixer 5 on the downstream side.

In the gas-liquid mixer 5, the high-pressure nanobubble water from the jet generator 4, that is, the gas-liquid mixed jet fluid is pressure-fed into the straight pipe of the gas-liquid mixer 5, while the compressed air from the compressor 1 is sent through the straight pipe. , and mixed at the confluence point to form a gas-liquid mixed fluid, which is sent to the downstream side. By effectively using a solenoid valve or the like for the gas-liquid mixing jet fluid side valve 9 and the compressed air side valve 10, the flow rate adjustment can be automated.

The T-shaped cheese 6 is connected to the downstream side of the gas-liquid mixer 5, is made of synthetic resin, metal, or ceramic, and branches the gas-liquid mixed fluid in two directions, left and right.
The flexible tube 7 is a hard urethane tube with an outer diameter of 10 mm, and its length is arbitrary, but it is assumed to be used in a vinyl house. Since the flexible tube 7 is flexible, the line can be freely designed, and the closed loop structure of the single tube is a device that does not lower the tip pressure.

The irregular cheese connector 11 is adapted to the size of the flexible tube 7, but can be relatively rotated, so that the position and the amount of mist can be adjusted.
The closed end tube nozzle 8 is preferably a rigid urethane tube having an outer diameter of 6 mm, and the diameter of the small hole 12 is preferably about 1 mm. As the compressed air runs through the center of the tube, the liquid moves to the walls. Air leaks from the small hole 12 of the nozzle 8 made of a closed end tube, but the liquid on the wall surface is forced out and atomized like a spray.

Next, the operating operation of the micro-mist generator of the present invention will be described below with reference to the accompanying drawings.
As shown in the schematic explanatory diagram of FIG. 1, a gas tank containing various gases such as O ₂ and CO ₂ and a water storage tank of stored water are connected to a microbubble generator 2, and the microbubble generator 2 generates The nanobubbles are stored in the bubble water tank 3.
The high-pressure air from the compressor 1 and the micro-nano bubble water from the bubble water tank 3 are mixed by the jet generator 4 to form a gas-liquid mixed jet fluid.
The gas-liquid mixed jet fluid is sent to the gas-liquid mixer 5, the high-pressure air from the compressor 1 and the gas-liquid mixed jet fluid are mixed, and the gas-liquid mixed fluid is ejected from the gas-liquid mixer 5 at a constant pressure. .
The gas-liquid mixed fluid is sent to the T-shaped cheese 6 connected to the gas-liquid mixer 5, and the leading end 13 and the terminal end 14 of the flexible tube 7 are connected to the T-shaped cheese 6 to form a closed loop. Therefore, the starting end 13 and the terminal end 14 have a uniform pressure.
Air leaks from a small hole 12 provided in the circumference of a closed end tube nozzle 8 connected to an irregular cheese connector 11 rotatably connected by cutting the flexible tube 7 in the middle, but the liquid on the wall surface leaks. By vigorously going outside, it is atomized like a mist spray.

As shown in the enlarged explanatory view of FIG. 2, the end-closed tube nozzle 8 is closed by applying a cap 15 to the tip of a cylindrical body, and has a plurality of small holes 12 in its circumference. The end-closed tube nozzle 8 is connected to an irregular tee connector 11 that is rotatably connected by cutting the flexible tube 7 in the middle. Although it is rotatable, the end-closed tube nozzle 8 itself is also fitted so as to be rotatable around the axis of the variant cheese connector 11, so that the spray direction of the mist can be changed in multiple directions.

As shown in the explanatory diagram of FIG. 3, a flexible tube 7 provided in a loop shape is supported by a post 16 suspended from the ceiling of a building such as a vinyl house or a greenhouse, thereby reducing CO ₂ microscopic emissions from the upper space. Nanobubble mist can be sprayed and effectively used for pest control.
In addition, as shown in the explanatory diagram of FIG. 4, by forming the end-closed tube nozzle 8 in a long dimension, a plurality of small holes ₁₂ can be formed in the vertical direction. The micro-nano bubble mist can be evenly sprayed, and can be effectively used for growing crops.

As shown in the explanatory diagram of FIG. 5, when spraying O ₂ micro-nano bubble mist to the root part of a plant, the air chipper 17 is supplied with compressed air from the compressor 1 and gas-liquid mixed jet fluid from the jet generator 4, That is, the O ₂ mist jet fluid is connected to the gas-liquid mixer 5 , and a stainless steel tube 19 having an iron arrowhead 18 with a small hole 12 at its tip is connected to the gas-liquid mixer 5 .
In the soil, the stainless steel pipe 19 is pierced by vertical vibration of the air chipper 17, and the _O2 micro-nano bubble mist is sprayed around the roots from the small hole 12. - 特許庁

1 Compressor 2 Microbubble generator 3 Bubble water tank 4 Jet generator 5 Gas-liquid mixer 6 T-shaped cheese 7 Flexible tube 8 End-closed tube nozzle 9 Gas-liquid mixing jet fluid side valve 10 Compressed air side valve 11 Modified shape Cheese connector 12 small hole 13 start end 14 end end 15 cap 16 strut 17 air chipper 18 iron arrowhead 19 stainless steel tube

Claims (2)

a nanobubble water storing step of generating micro-nanobubble water of carbon dioxide or oxygen with a microbubble generator and storing the water in a bubble water tank;
a jet fluid generation step of mixing high-pressure air from a compressor and micro-nano bubble water from the bubble water tank in a jet generator to form a gas-liquid mixed jet fluid;
The gas-liquid mixed jet fluid is sent to a gas-liquid mixer, and the high-pressure air from the compressor and the gas-liquid mixed jet fluid are mixed, and the gas-liquid mixed fluid is ejected from the gas-liquid mixer at a constant pressure. a fluid ejection step;
A tube tube pressure equalizing step of sending the gas-liquid mixed fluid to the T-shaped cheese connected to the gas-liquid mixer and connecting the leading end and the terminal end of a flexible tube to the T-shaped cheese to form a closed loop. When,
a micro-mist spraying step of spraying micro-mist from small holes provided in the circumference of a nozzle made of a closed-end tube connected to an irregular cheese connector rotatably connected by dividing the middle of the flexible tube. A micro-mist generation method characterized by: A jet generator that mixes high-pressure air from a compressor and micro-nano bubble water from a bubble water tank to form a gas-liquid mixed jet fluid, and a gas-liquid mixed jet fluid of the jet generator that is connected downstream of the jet generator. and a gas-liquid mixer for mixing with high-pressure air from the compressor, a T-shaped cheese connected to the gas-liquid mixer and branching the gas-liquid mixed fluid in two directions, a straight direction and a perpendicular direction, and the T-shaped cheese a flexible tube connecting one end in the rectilinear direction and the other end in the perpendicular direction to form a closed loop; a variant cheese connector rotatably connected in the middle of the flexible tube; A micro-mist generator comprising: a nozzle made of a closed-end tube having a small hole in its circumference and connected perpendicularly to the heteromorphic cheese connector.

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