CN114917794A

CN114917794A - Equipment and method for increasing and applying CO2 by using micro-nano bubbles

Info

Publication number: CN114917794A
Application number: CN202210540078.7A
Authority: CN
Inventors: 李冬; 王华哲; 高万林; 陈春利
Original assignee: Zhejiang Xiyue New Material Technology Co Ltd
Current assignee: Zhejiang Xiyue New Material Technology Co Ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-08-19

Abstract

The invention discloses equipment and a method for increasing and applying CO2 by utilizing micro-nano bubbles, wherein the equipment comprises a water tank, a filtering device, a dry ice generator, the bubble generator and a spraying system, a liquid inlet pipe, an air inlet pipe and a liquid outlet pipe are arranged on the bubble generator, the water tank, the filtering device and the bubble generator are sequentially connected through the liquid inlet pipe, a water pump and a pressure stabilizing valve are arranged on the liquid inlet pipe, the water pump is positioned between the water tank and the filtering device and is detachably connected with the liquid inlet pipe, the pressure stabilizing valve is positioned between the filtering device and the bubble generator and is detachably connected with the liquid inlet pipe, the dry ice generator is connected with the bubble generator through the air inlet pipe, a switch valve I and a gas flowmeter are detachably arranged on the air inlet pipe, a switch valve II is detachably arranged on the liquid outlet pipe, and the bubble generator is detachably connected with the spraying system through the liquid outlet pipe. The invention has the beneficial effects that: the purpose of difficult conveying pipeline blockage is achieved, and the absorption efficiency of crops on the micro-nano bubble liquid is improved.

Description

Equipment and method for increasing and applying CO2 by using micro-nano bubbles

Technical Field

The invention relates to the technical field related to equipment for increasing and applying CO2, in particular to equipment for increasing and applying CO2 by utilizing micro-nano bubbles and a method thereof.

Background

Carbon dioxide is one of the key factors influencing the growth, development and function of plants, is a substrate of photosynthesis, is a regulator of primary metabolic processes, distribution and growth of photosynthetic assimilates, participates in a series of biochemical reactions in plants, and has direct influence on the growth of the plants.

The CO2 controlled by the nanotechnology can be used for conveying carbon grains by utilizing an original water-fertilizer pipeline, can be dissolved into water to enter soil to play a role, can serve roots, stems and leaves in an all-round way, can improve the activity of soil microbial flora, improves the soil fertility, is more efficient, improves the utilization efficiency of CO2, and saves the cost.

The Chinese patent publication numbers are: CN210226678U, the grant announcement date is 04.03.2020, discloses a name micro-nano bubble biopesticide atomizing and spraying system, and this system includes: the system comprises a micro-nano bubble water generation host, a micro-nano bubble water generation water tank, a mixed water tank, a biological pesticide adjusting tank, a conveying pipeline and a spray head; one path of the micro-nano bubble water generation host is connected with the micro-nano bubble water generation water tank through a water inlet pipe, the other path of the micro-nano bubble water generation host is connected with the micro-nano bubble water generation water tank through a water outlet pipe, and an aeration head is arranged at the tail end of the water outlet pipe positioned in the micro-nano bubble water generation water tank; the micro-nano bubble water generation water tank is connected with the mixed water tank through a connecting pipe, and a water pump is arranged on the connecting pipe; the biological pesticide regulating box is connected with the mixed water tank through a biological pesticide suction pipe, and a metering pump is arranged on the biological pesticide suction pipe; the spray head is connected with the mixed water tank through a conveying pipeline, and a pressure pump and an electromagnetic valve are arranged on the conveying pipeline.

Known by above-mentioned patent, the water source that gas mixture produced micro-nano bubble is not through the processing, because there are more impurity in the water source, not only leads to conveying pipeline's jam easily, leads to sprinkling system's paralysis, influences the absorption of crop to micro-nano bubble liquid easily moreover to be unfavorable for improving the output of crop.

Disclosure of Invention

The invention provides equipment and a method for increasing CO2 by utilizing micro-nano bubbles, which are not easy to cause the blockage of a conveying pipeline, and aims to overcome the defect that the conveying pipeline is blocked due to more impurities in a water source in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an utilize micro-nano bubble to increase and execute equipment of CO2, it includes water tank, filter equipment, dry ice generator, bubble generator and spraying system, install feed liquor pipe, intake pipe and fluid-discharge tube on the bubble generator, water tank, filter equipment and bubble generator connect gradually through the feed liquor pipe, be equipped with water pump and surge damping valve on the feed liquor pipe, the water pump is located between water tank and the filter equipment and can dismantle with the feed liquor pipe and be connected, the surge damping valve is located between filter equipment and the bubble generator and can dismantle with the feed liquor pipe and be connected, the dry ice generator is connected with bubble generator through the intake pipe, demountable installation has ooff valve one and gas flowmeter in the intake pipe, demountable installation has ooff valve two on the fluid-discharge tube, bubble generator can dismantle with spraying system through the fluid-discharge tube and be connected.

The dry ice generator is characterized in that a liquid inlet pipe, an air inlet pipe and a liquid discharge pipe are installed on the bubble generator, the water tank, the filtering device and the bubble generator are sequentially connected through the liquid inlet pipe, a water pump and a pressure stabilizing valve are arranged on the liquid inlet pipe, the water pump is located between the water tank and the filtering device and detachably connected with the liquid inlet pipe, the pressure stabilizing valve is located between the filtering device and the bubble generator and detachably connected with the liquid inlet pipe, the dry ice generator is connected with the bubble generator through the air inlet pipe, a first switch valve and a second gas flowmeter are detachably installed on the air inlet pipe, a second switch valve is detachably installed on the liquid discharge pipe, and the bubble generator is detachably connected with the spraying system through the liquid discharge pipe. The control system controls the first switch valve to be opened, so that CO2 generated by the dry ice generator is conveyed into the bubble generator through the air inlet pipe; meanwhile, after the water pump is started by the control system, water in the water tank passes through the filtering device, impurities are removed and then the water is conveyed into the bubble generator to be mixed with CO2 to generate micro-nano bubbles, and the micro-nano bubbles are discharged into the spraying system from the liquid discharge pipe to irrigate crops, so that the purpose of preventing the conveying pipeline from being blocked is achieved, and the absorption efficiency of the crops on micro-nano bubble liquid is improved; the pressure stabilizing valve on the liquid inlet pipe can monitor and adjust the liquid inlet pressure at any time and keep stable pressure, so that the particle size of the generated micro-nano bubbles is more uniform.

Preferably, the filter device comprises a centrifugal filter and a sand filter, the centrifugal filter is positioned between the water pump and the sand filter, and the centrifugal filter and the sand filter are both detachably connected with the liquid inlet pipe. Water in the water tank loops through the secondary filter of centrifugal filter and grit filter, is favorable to getting rid of impurity such as grit in the water source, has further improved the purity of quality of water to be difficult for leading to pipeline's jam, and do benefit to the effect that improves crops and irrigate.

As preferred, bubble generator includes the box, the box can be dismantled with feed liquor pipe, intake pipe and fluid-discharge tube respectively and be connected, be equipped with the hybrid chamber in the box, feed liquor pipe, intake pipe are located the top of hybrid chamber, the fluid-discharge tube is located the bottom of hybrid chamber, be equipped with high-speed rotation axis in the hybrid chamber, high-speed rotation axis is connected with the bottom seal rotation of hybrid chamber, be equipped with a plurality ofly on the high-speed rotation axis and stir the piece, every including driving piece and two stirring vane to stirring piece, the driving piece can be dismantled with the lateral wall of high-speed rotation axis and be connected, the driving piece is located between two stirring vane, and two stirring vane are close to each other or keep away from when being connected with the lateral wall rotation of high-speed rotation axis under the drive of driving piece. High-speed rotation axis produces high-speed rotatory the time, it is high-speed rotatory to drive stirring vane, so that aqueous solution does high-speed gyration cutting motion, so as to with CO2 intensive mixing, produce micro-nano bubble, two stirring vane are close to or keep away from each other when being connected with the lateral wall rotation of high-speed rotation axis under the drive of driving piece simultaneously, make the aqueous solution that thoughtlessly has CO2 bubble strike each other under two stirring vane's fanning, be favorable to further improving the production effect of micro-nano bubble.

Preferably, the driving part comprises an electric telescopic shaft with a waterproof function and a spring, one end of the electric telescopic shaft is detachably connected with the side wall of the high-speed rotating shaft, the other end of the electric telescopic shaft is provided with a support rod, the support rod is perpendicular to the electric telescopic shaft, two ends of the support rod are respectively in contact with two stirring blades, one stirring blade is elastically connected with the other stirring blade through the spring, the center of the support rod is detachably connected with the electric telescopic shaft, the spring is located on the upper portion of the high-speed rotating shaft, and the electric telescopic shaft is located on the lower portion of the high-speed rotating shaft. When stirring vane is high-speed rotatory, electronic telescopic shaft drives the vaulting pole along radial round trip movement with certain frequency, and the both ends of vaulting pole act on two stirring vane respectively to under the synergism of spring, realized being close to each other or keeping away from of two stirring vane, make the aqueous solution that thoughtlessly has CO2 bubble strike each other under two stirring vane's fanning, improve micro-nano bubble's production effect.

Preferably, two ends of the supporting rod are respectively provided with a hemisphere, and the supporting rod is respectively contacted with the two stirring blades through the hemispheres. The two ends of the stay bar act on the two stirring blades through the hemispherical structures respectively, so that when the stay bar and the stirring blades slide relatively, the friction force between the stay bar and the stirring blades is reduced, the surfaces of the stirring blades are protected from being damaged, and the service life of the stirring blades is prolonged.

Preferably, the bottom of high-speed rotation axis is connected with the bottom sealing rotation of hybrid chamber, the top lateral wall of high-speed rotation axis is equipped with a plurality of evenly distributed's connecting rod, the top of high-speed rotation axis is rotated through the top lateral wall of a plurality of connecting rods with the hybrid chamber and is connected, the top of hybrid chamber is equipped with sealed lid, sealed lid and box sealing connection. The both ends of high-speed rotation axis are rotated with the top and the bottom of hybrid chamber respectively and are connected, are favorable to guaranteeing the position stability of high-speed rotation axis at high-speed rotatory in-process, prevent that it from producing and deflect, do benefit to and improve safety and stability.

As preferred, the bottom of hybrid chamber is equipped with sealed chamber, be equipped with the motor in the sealed chamber, the motor can be dismantled with the bottom in sealed chamber and be connected, the output of motor runs through the top center in sealed chamber and can dismantle with the bottom of high-speed rotation axis and be connected, the output of motor runs through the sealed chamber top center part and is connected with the sealed rotation in bottom center of hybrid chamber, is favorable to preventing that aqueous solution from entering into sealed chamber to be favorable to protecting the motor.

Preferably, be equipped with a plurality of sand grips corresponding with stirring vane on the lateral wall of hybrid chamber, the lateral wall fixed connection of sand grip and hybrid chamber, the one end of sand grip is close to the top of hybrid chamber, the top of hybrid chamber and be connected with the bottom of hybrid chamber are kept away from to the other end of sand grip. The stirring vane rotates at a high speed to enable the water solution to do high-speed rotary cutting movement, and the stirring vane moves back and forth to enable the water solution to collide with the side wall of the mixing cavity, and the side wall of the mixing cavity is provided with a plurality of raised lines, so that the collision effect of the water solution is improved, and the generation effect of micro-nano bubbles is further improved.

The invention also provides a method for increasing and applying CO2 by utilizing the micro-nano bubbles, which comprises the following steps:

firstly, an operator sets a control system program, a control system starts a water pump, and water in a water tank is sequentially pumped to a centrifugal filter and a sand filter for filtration and then conveyed to a bubble generator;

step two, simultaneously, the control system starts the dry ice generator and the first switch valve, and the generated CO2 enters the bubble generator through the air inlet pipe to be mixed with the aqueous solution;

step three, the control system controls the bubble generator to work to generate micro-nano CO2 bubbles;

and step four, the control system controls to open the second switch valve, so that the micro-nano CO2 bubbles and the aqueous solution are uniformly mixed and then discharged from the liquid discharge pipe, and the mixture is conveyed to the spraying system.

Water in the water tank passes through the filtering device, impurities are removed, the water is conveyed into the bubble generator and mixed with CO2 to generate micro-nano bubbles, and the micro-nano bubbles are discharged into the spraying system from the liquid discharge pipe to irrigate crops, so that the aim of preventing the conveying pipeline from being blocked is fulfilled, and the absorption efficiency of the crops on micro-nano bubble liquid is improved; the pressure stabilizing valve on the liquid inlet pipe can monitor and adjust the liquid inlet pressure at any time and keep stable pressure, so that the particle size of the generated micro-nano bubbles is more uniform.

Preferably, the specific working steps of the bubble generator are as follows:

step A, a control system controls a motor to work, the motor drives a high-speed rotating shaft to rotate at a high speed, and at the moment, a stirring block also rotates at a high speed to stir an aqueous solution and CO2 gas; the stirring block rotates at a high speed, so that the aqueous solution does high-speed rotary cutting motion so as to be fully mixed with CO2, and micro-nano bubbles are generated.

And step B, when the stirring block rotates at a high speed, the control system controls the electric telescopic shaft to work, so that the electric telescopic shaft drives the stay bar to stretch back and forth at a certain frequency, the two stirring blades are continuously close to or far away from each other under the combined action of the stay bar and the spring, the aqueous solution mixed with CO2 bubbles impacts with each other under the fanning action of the two stirring blades, and the production effect of the micro-nano bubbles is improved.

The invention has the beneficial effects that: the purpose of preventing the conveying pipeline from being blocked is achieved, and the absorption efficiency of crops on the micro-nano bubble liquid is improved; the pressure stabilizing valve can monitor and adjust the liquid inlet pressure at any time and maintain stable pressure, so that the particle size of the generated micro-nano bubbles is more uniform; the stirring blades rotate at a high speed, so that the aqueous solution is subjected to high-speed rotary cutting motion so as to be fully mixed with CO2 to generate micro-nano bubbles, and meanwhile, the aqueous solution mixed with CO2 bubbles is impacted with each other under the fanning action of the two stirring blades, so that the generation effect of the micro-nano bubbles is further improved; the two ends of the stay bar respectively act on the two stirring blades through the hemispherical structures, so that when the stay bar and the stirring blades slide relatively, the friction force between the stay bar and the stirring blades is reduced, the surfaces of the stirring blades are protected from being damaged, and the service life of the stirring blades is prolonged; two ends of the high-speed rotating shaft are respectively and rotatably connected with the top and the bottom of the mixing cavity, so that the position stability of the high-speed rotating shaft in the high-speed rotating process is favorably ensured, the high-speed rotating shaft is prevented from deflecting, and the safety and stability are favorably improved; through setting up a plurality of sand grips on the hybrid chamber lateral wall, more be favorable to improving the collision effect of aqueous solution to the production effect of micro-nano bubble has further been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the bubble generator;

fig. 3 is a cross-sectional view a-a of fig. 2.

In the figure: 1. the device comprises a water tank, 2 parts of a filtering device, 3 parts of a dry ice generator, 4 parts of a bubble generator, 5 parts of a liquid inlet pipe, 6 parts of an air inlet pipe, 7 parts of a liquid outlet pipe, 8 parts of a water pump, 9 parts of a pressure stabilizing valve, 10 parts of a first switch valve, 11 parts of a gas flowmeter, 12 parts of a second switch valve, 13 parts of a centrifugal filter, 14 parts of a sand filter, 15 parts of a box body, 16 parts of a mixing cavity, 17 parts of a high-speed rotating shaft, 18 parts of a stirring block, 19 parts of a driving part, 20 parts of a stirring blade, 21 parts of an electric telescopic shaft, 22 parts of a spring, 23 parts of a support rod, 24 parts of a hemisphere, 25 parts of a connecting rod, 26 parts of a sealing cover, 27 parts of a sealing cavity, 28 parts of a motor and 29 parts of raised strips.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1, an apparatus for increasing and applying CO2 by using micro-nano bubbles comprises a water tank 1, a filtering device 2, a dry ice generator 3, bubble generator 4 and spraying system, install feed liquor pipe 5 on bubble generator 4, intake pipe 6 and fluid-discharge tube 7, the water tank 1, filter equipment 2 and bubble generator 4 connect gradually through feed liquor pipe 5, be equipped with water pump 8 and surge damping valve 9 on the feed liquor pipe 5, water pump 8 is located between water tank 1 and the filter equipment 2 and can dismantle with feed liquor pipe 5 and be connected, surge damping valve 9 is located between filter equipment 2 and the bubble generator 4 and can dismantle with feed liquor pipe 5 and be connected, dry ice generator 3 is connected with bubble generator 4 through intake pipe 6, demountable installation has ooff valve 10 and gas flowmeter 11 on the intake pipe 6, demountable installation has ooff valve two 12 on the fluid-discharge tube 7, bubble generator 4 can dismantle with spraying system through fluid-discharge tube 7 and be connected.

As shown in fig. 1, the filtering device 2 comprises a centrifugal filter 13 and a sand filter 14, the centrifugal filter 13 is positioned between the water pump 8 and the sand filter 14, and both the centrifugal filter 13 and the sand filter 14 are detachably connected with the liquid inlet pipe 5.

As shown in fig. 2 and fig. 3, the bubble generator 4 includes a box body 15, the box body 15 is respectively connected with a liquid inlet pipe 5, an air inlet pipe 6 and a liquid discharge pipe 7 in a detachable manner, a mixing chamber 16 is provided in the box body 15, the liquid inlet pipe 5, the air inlet pipe 6 is located at the top of the mixing chamber 16, the liquid discharge pipe 7 is located at the bottom of the mixing chamber 16, a high-speed rotating shaft 17 is provided in the mixing chamber 16, the high-speed rotating shaft 17 is connected with the bottom of the mixing chamber 16 in a sealing and rotating manner, a plurality of pairs of stirring blocks 18 are provided on the high-speed rotating shaft 17, each pair of stirring blocks 18 includes a driving member 19 and two stirring blades 20, the driving member 19 is detachably connected with the side wall of the high-speed rotating shaft 17, the driving member 19 is located between the two stirring blades 20, and the two stirring blades 20 are close to or far away from each other while being connected with the side wall of the high-speed rotating shaft 17 under the driving of the driving member 19.

As shown in fig. 3, the driving member 19 includes an electric telescopic shaft 21 and a spring 22 having a waterproof function, one end of the electric telescopic shaft 21 is detachably connected to a side wall of the high-speed rotating shaft 17, a supporting rod 23 is disposed at the other end of the electric telescopic shaft 21, the supporting rod 23 is perpendicular to the electric telescopic shaft 21, two ends of the supporting rod 23 are respectively in contact with two stirring blades 20, one stirring blade 20 is elastically connected to the other stirring blade 20 through the spring 22, a center of the supporting rod 23 is detachably connected to the electric telescopic shaft 21, the spring 22 is located at an upper portion of the high-speed rotating shaft 17, and the electric telescopic shaft 21 is located at a lower portion of the high-speed rotating shaft 17. Hemispheroids 24 are arranged at two ends of the stay bar 23, and the stay bar 23 is respectively contacted with the two stirring blades 20 through the hemispheroids 24.

As shown in fig. 2, the bottom end of the high-speed rotating shaft 17 is connected with the bottom of the mixing chamber 16 in a sealing and rotating manner, the side wall of the top end of the high-speed rotating shaft 17 is provided with a plurality of connecting rods 25 which are uniformly distributed, the top end of the high-speed rotating shaft 17 is connected with the side wall of the top of the mixing chamber 16 in a rotating manner through the plurality of connecting rods 25, the top of the mixing chamber 16 is provided with a sealing cover 26, and the sealing cover 26 is connected with the box body 15 in a sealing manner.

As shown in fig. 2, a sealed cavity 27 is provided at the bottom of the mixing cavity 16, a motor 28 is provided in the sealed cavity 27, the motor 28 is detachably connected to the bottom of the sealed cavity 27, an output end of the motor 28 penetrates through the top center of the sealed cavity 27 to be detachably connected to the bottom end of the high-speed rotating shaft 17, and a portion of the output end of the motor 28 penetrating through the top center of the sealed cavity 27 is rotatably connected to the bottom center of the mixing cavity 16 in a sealed manner.

As shown in fig. 3, a plurality of ribs 29 corresponding to the stirring blades 20 are disposed on the side wall of the mixing chamber 16, the ribs 29 are fixedly connected to the side wall of the mixing chamber 16, one end of each rib 29 is close to the top of the mixing chamber 16, and the other end of each rib 29 is far away from the top of the mixing chamber 16 and is connected to the bottom of the mixing chamber 16.

firstly, an operator sets a control system program, a control system starts a water pump 8, water in a water tank 1 is sequentially pumped to a centrifugal filter 13 and a sand filter 14 for filtering, and then the water is conveyed to a bubble generator 4;

step two, simultaneously, the control system starts the dry ice generator 3 and the first switch valve 10, and the generated CO2 enters the bubble generator 4 through the air inlet pipe 6 to be mixed with the aqueous solution;

step three, the control system controls the bubble generator 4 to work to generate micro-nano CO2 bubbles;

and step four, the control system controls to open the second switch valve 12, so that the micro-nano CO2 bubbles and the aqueous solution are uniformly mixed and then discharged from the liquid discharge pipe 7, and are conveyed to the spraying system.

Specifically, the specific working steps of the bubble generator 4 are as follows:

step A, a control system controls a motor 28 to work, the motor 28 drives a high-speed rotating shaft 17 to rotate at a high speed, and at the moment, a stirring block 18 also rotates at a high speed to stir an aqueous solution and CO2 gas;

step B, when the stirring block 18 rotates at a high speed, the control system controls the electric telescopic shaft 21 to work, so that the electric telescopic shaft 21 drives the support rod 23 to stretch back and forth at a certain frequency, and the two stirring blades 20 are continuously close to or far away from each other under the combined action of the support rod 23 and the spring 22.

The control system controls the first switch valve 10 to be opened, so that CO2 generated by the dry ice generator 3 is conveyed into the bubble generator 4 through the air inlet pipe 6; meanwhile, after the control system starts the water pump 8, water in the water tank 1 sequentially passes through the centrifugal filter 13 and the sand filter 14 for secondary filtration, impurities are removed and then conveyed into the bubble generator 4 to be mixed with CO2 to generate micro-nano bubbles, and then the micro-nano bubbles are discharged into the spraying system from the liquid discharge pipe 7 to be used for irrigating crops, so that the purpose of blocking a conveying pipeline is achieved, and the absorption efficiency of the crops on micro-nano bubble liquid is improved.

When the bubble generator 4 works, the motor 28 drives the high-speed rotating shaft 17 to rotate at a high speed, and simultaneously drives the stirring blades 20 to rotate at a high speed, so that the aqueous solution is subjected to high-speed rotary cutting motion, and is fully mixed with CO2 to generate micro-nano bubbles; meanwhile, the two stirring blades 20 are in rotating connection with the side wall of the high-speed rotating shaft 17 under the combined action of the electric telescopic shaft 21 and the spring 22 and are close to or far away from each other at the same time, so that the aqueous solution mixed with CO2 bubbles collides with each other under the fanning action of the two stirring blades 20, and the generation effect of micro-nano bubbles is further improved; stirring vane 20 is high-speed rotatory to make aqueous solution do high-speed gyration cutting motion to and stirring vane 20's the fan that makes a round trip, make aqueous solution and 16 lateral walls of hybrid chamber produce the collision, through setting up a plurality of sand grips 29 on the 16 lateral walls of hybrid chamber, more be favorable to improving the collision effect of aqueous solution, thereby further improved the production effect of micro-nano bubble.

Claims

1. The equipment for increasing and applying CO2 by utilizing micro-nano bubbles is characterized by comprising a water tank (1), a filtering device (2), a dry ice generator (3), a bubble generator (4) and a spraying system, wherein a liquid inlet pipe (5), an air inlet pipe (6) and a liquid discharge pipe (7) are installed on the bubble generator (4), the water tank (1), the filtering device (2) and the bubble generator (4) are sequentially connected through the liquid inlet pipe (5), a water pump (8) and a pressure stabilizing valve (9) are arranged on the liquid inlet pipe (5), the water pump (8) is positioned between the water tank (1) and the filtering device (2) and is detachably connected with the liquid inlet pipe (5), the pressure stabilizing valve (9) is positioned between the filtering device (2) and the bubble generator (4) and is detachably connected with the liquid inlet pipe (5), the dry ice generator (3) is connected with the bubble generator (4) through the air inlet pipe (6), the gas-liquid separation device is characterized in that a first switch valve (10) and a gas flowmeter (11) are detachably mounted on the gas inlet pipe (6), a second switch valve (12) is detachably mounted on the liquid discharge pipe (7), and the bubble generator (4) is detachably connected with the spraying system through the liquid discharge pipe (7).

2. The device for applying CO2 by utilizing micro-nano bubbles according to claim 1, wherein the filtering device (2) comprises a centrifugal filter (13) and a sand filter (14), the centrifugal filter (13) is positioned between the water pump (8) and the sand filter (14), and both the centrifugal filter (13) and the sand filter (14) are detachably connected with the liquid inlet pipe (5).

3. The device for increasing and applying CO2 by using micro-nano bubbles according to claim 1, wherein the bubble generator (4) comprises a box body (15), the box body (15) is detachably connected with a liquid inlet pipe (5), an air inlet pipe (6) and a liquid discharge pipe (7) respectively, a mixing chamber (16) is arranged in the box body (15), the liquid inlet pipe (5) and the air inlet pipe (6) are positioned at the top of the mixing chamber (16), the liquid discharge pipe (7) is positioned at the bottom of the mixing chamber (16), a high-speed rotating shaft (17) is arranged in the mixing chamber (16), the high-speed rotating shaft (17) is rotatably connected with the bottom of the mixing chamber (16) in a sealing manner, a plurality of pairs of stirring blocks (18) are arranged on the high-speed rotating shaft (17), each pair of stirring blocks (18) comprises a driving piece (19) and two stirring blades (20), the driving piece (19) is detachably connected with the side wall of the high-speed rotating shaft (17), the driving piece (19) is located between the two stirring blades (20), and the two stirring blades (20) are driven by the driving piece (19) to be in rotating connection with the side wall of the high-speed rotating shaft (17) and simultaneously approach to or move away from each other.

4. The apparatus for CO2 application by micro-nano bubbles according to claim 3, the driving piece (19) comprises an electric telescopic shaft (21) with a waterproof function and a spring (22), one end of the electric telescopic shaft (21) is detachably connected with the side wall of the high-speed rotating shaft (17), the other end of the electric telescopic shaft (21) is provided with a support rod (23), the support rod (23) is vertical to the electric telescopic shaft (21), two ends of the brace rod (23) are respectively contacted with the two stirring blades (20), one stirring blade (20) is elastically connected with the other stirring blade (20) through a spring (22), the center of the support rod (23) is detachably connected with the electric telescopic shaft (21), the spring (22) is positioned at the upper part of the high-speed rotating shaft (17), and the electric telescopic shaft (21) is positioned at the lower part of the high-speed rotating shaft (17).

5. The device for increasing and applying CO2 by using micro-nano bubbles according to claim 4, wherein hemispheres (24) are arranged at two ends of the stay bar (23), and the stay bar (23) is respectively in contact with the two stirring blades (20) through the hemispheres (24).

6. The device for increasing and applying CO2 by using micro-nano bubbles according to claim 3, wherein the bottom end of the high-speed rotating shaft (17) is in sealed and rotatable connection with the bottom of the mixing chamber (16), the side wall of the top end of the high-speed rotating shaft (17) is provided with a plurality of uniformly distributed connecting rods (25), the top end of the high-speed rotating shaft (17) is in rotatable connection with the side wall of the top of the mixing chamber (16) through the plurality of connecting rods (25), the top of the mixing chamber (16) is provided with a sealing cover (26), and the sealing cover (26) is in sealed connection with the box body (15).

7. The device for increasing and applying CO2 by using micro-nano bubbles according to claim 3, wherein a sealed cavity (27) is arranged at the bottom of the mixing cavity (16), a motor (28) is arranged in the sealed cavity (27), the motor (28) is detachably connected with the bottom of the sealed cavity (27), the output end of the motor (28) penetrates through the top center of the sealed cavity (27) and is detachably connected with the bottom end of the high-speed rotating shaft (17), and the part of the output end of the motor (28) penetrating through the top center of the sealed cavity (27) is rotatably connected with the bottom center of the mixing cavity (16) in a sealed manner.

8. The device for increasing and applying CO2 by using micro-nano bubbles according to claim 3, wherein a plurality of ribs (29) corresponding to the stirring blades (20) are arranged on the side wall of the mixing chamber (16), the ribs (29) are fixedly connected with the side wall of the mixing chamber (16), one end of each rib (29) is close to the top of the mixing chamber (16), and the other end of each rib (29) is far away from the top of the mixing chamber (16) and is connected with the bottom of the mixing chamber (16).

9. The method for increasing CO2 by using micro-nano bubbles according to claim 2, which comprises the following steps:

firstly, an operator sets a control system program, a control system starts a water pump (8), water in a water tank (1) is sequentially pumped to a centrifugal filter (13) and a sand filter (14) for filtering, and then is conveyed to a bubble generator (4);

step two, simultaneously, the control system starts the dry ice generator (3) and the switch valve I (10), and the generated CO2 enters the bubble generator (4) through the air inlet pipe (6) to be mixed with the aqueous solution;

step three, the control system controls the bubble generator (4) to work to generate micro-nano CO2 bubbles;

and step four, the control system controls to open the second switch valve (12) so that the micro-nano CO2 bubbles and the aqueous solution are uniformly mixed and then discharged from the liquid discharge pipe (7) and are conveyed to the spraying system.

10. The method for applying CO2 by using micro-nano bubbles according to claim 9, wherein the bubble generator (4) comprises the following specific working steps:

step A, a control system controls a motor (28) to work, the motor (28) drives a high-speed rotating shaft (17) to rotate at a high speed, and at the moment, a stirring block (18) also rotates at a high speed along with the high-speed rotating shaft to stir an aqueous solution and CO2 gas;

and step B, while the stirring block (18) rotates at a high speed, the control system controls the electric telescopic shaft (21) to work, so that the electric telescopic shaft (21) drives the support rod (23) to extend back and forth at a certain frequency, and the two stirring blades (20) are continuously close to or far away from each other under the combined action of the support rod (23) and the spring (22).