Pipe-type micro-nano aeration device and method

Abstract

The application discloses a pipeline type micro-nano aeration device and method, and relates to the field of water body treatment equipment. The pipeline type micro-nano aeration device comprises a base pipe, water inlet pipes and water outlet pipes arranged at two ends of the base pipe, an inner pipe arranged in the base pipe, the inner pipe connected with the water inlet pipes and the water outlet pipes at two ends, a cavity arranged between the inner pipe and the base pipe, aeration holes arranged on the wall of the inner pipe, air inlet pipes arranged on the side of the base pipe and communicated with the cavity, a disturbance part arranged in the inner pipe and parallel to the axis of the inner pipe, the disturbance part comprising annular sliding plates, first springs arranged on the opposite sides of adjacent sliding plates, strip-shaped bodies arranged on the inner sides of the sliding plates and extending towards the axis of the inner pipe. The application aims to provide a pipeline type micro-nano aeration device and method with high efficiency, low energy consumption, good aeration effect and large flow.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of water treatment equipment, and particularly relates to a pipeline type micro-nano aeration device and method. BACKGROUND

[0002] Micro-nano bubbles have the characteristics of small bubble size, large specific surface area, high adsorption efficiency, and slow rising speed in water. The micro-nano bubbles can effectively separate solid impurities in water, quickly increase the oxygen concentration of water, and kill harmful bacteria in water.

[0003] The existing pipeline internal bubble breaking device includes a static mixing structure separated from the air inlet and a structure combined with the air inlet. The static mixer is a typical static gas-liquid mixing and bubble breaking structure, but for gas-liquid mixing and bubble breaking process, due to the large difference in gas-liquid viscosity, the mixing effect of the static mixer is generally not ideal. Even if a good mixing effect can be achieved, a very high pipeline pressure needs to be consumed, and the economy is very poor.

[0004] The prior art is an invention patent named "Flowing water pipeline for aeration device, aeration device equipped with the same and water treatment unit having the aeration device", the patent disclosure number of which is JP2000015285A. The invention patent provides an aeration device capable of meeting the requirements of high aeration amount and miniaturization, and provides a water treatment device that helps to save space around the water tank by combining the aeration device and the filter device together. The aeration device of the invention has a water inlet for sucking water in the water tank and a water outlet for discharging the aeration water to the water tank side, and is provided with a flow pipe having at least one air inlet hole formed through the pipe wall or a baffle plate partially blocking the pipe on the pipe path from the water inlet to the water outlet. The invention realizes the entry of gas into the water body through the air hole to achieve the provision of sufficient dissolved oxygen amount to the water body, but the bubble diameter is large when the gas enters the water body, and most of the released small air is easy to gather into large particle bubbles and run out of the water, which has the problems of high energy consumption and low efficiency. SUMMARY

[0005] The present application aims to provide a pipeline type micro-nano aeration device and method with high efficiency, low energy consumption, good aeration effect, and large flow.

[0006] The technical solution adopted by the present application to achieve the above-mentioned purpose is as follows:

[0007] The utility model provides a pipeline type micro -nano aeration device, including base pipe, and the both ends of base pipe are equipped with water inlet pipe and water outlet pipe respectively, and the inside of base pipe is equipped with inner tube, and the both ends of inner tube are connected with water inlet pipe and water outlet pipe respectively, and the straight between inner tube and base pipe is equipped with cavity, and the wall of inner tube is equipped with aeration hole, and the side of base pipe is equipped with air inlet pipe, and air inlet pipe is connected with cavity, and the inside of inner tube is equipped with the disturbance piece that is arranged in parallel along the axis of inner tube, and the disturbance piece includes annular slip plate, and the opposite side of adjacent slip plate is equipped with first spring, and the inside of slip plate is uniformly equipped with strip body, and strip body extends to the axis of inner tube.

[0008] Through the design of the whole pipeline type micro -nano aeration device, water enters into the inner tube from the water inlet pipe, and the water is discharged from the water outlet pipe after passing through the inner tube, in the process, the water forms a negative pressure when flowing through the inner tube, the gas needed to be dissolved into the water phase is sucked into the cavity through the air inlet, the negative pressure formed by the high-speed flow of water through the inner tube sucks the gas into the cavity through the air inlet pipe and enters the water phase through the aeration hole on the inner tube, and the water is discharged through the water outlet pipe, the gas forms micro -nano bubbles in the process, the hydrodynamic rotation cutting is applied to the gas-liquid mixing process, and the mixing and transmission of the gas-liquid two-phase medium can be completed in one step, the micro -nano bubbles produce free radical hydroxyl when they break, which has an oxidation decomposition effect, and can also degrade part of the organic pollutants in the water body while increasing the oxygen content of the water body. The inner tube contains a plurality of disturbance pieces, which can move in the axial direction of the inner tube, i. e. the slip plate can move in the axial direction of the inner tube, when the gas enters the water phase through the aeration hole, the mixing effect of the water and the gas in the inner tube can be improved, i. e. when the water and the gas are mixed, the liquid forms a high-speed rotational flow in the inner tube, at this time the liquid drives the slip plate to move and rotate, the opposite side of adjacent slip plate is equipped with first spring, which can prevent the slip plate from colliding during movement and rotation, and at the same time, the adjacent slip plates have a certain interval, the strip body moves and rotates during the movement and rotation of the slip plate, which improves the mixing effect of the liquid and the gas; at the same time, the slip plate slides relative to the inner wall of the inner tube during movement and rotation, which prevents the inner wall of the inner tube from being covered with residues, prevents impurities or other dirt from blocking the aeration hole and affects the mixing effect of the gas and the liquid; in addition, the strip body can reduce the flow speed of the liquid and the gas in the inner tube, increase the pressure of the medium in the inner tube, and increase the flow rate of the medium discharged from the inner tube.

[0009] Further, the diameter of the aeration hole is between 0.5-5mm. Further, the diameter of the water inlet pipe gradually decreases in the direction of water flow, and the diameter ratio of the two ends is 2:1. Further, the diameter of the water outlet pipe gradually increases in the direction of water flow, and the diameter ratio of the two ends is 1:2.5. Through the above design, when the water flows through the liquid inlet pipe, the water flow speed increases due to the decrease of the diameter of the liquid inlet pipe in the process of water flow, and the negative pressure formed when the water flows through the inner pipe at high speed will suck the gas into the cavity through the air inlet pipe and into the water phase through the aeration hole on the inner pipe; after the gas and liquid are fully mixed and high-speed vortex is generated, the water outlet pipe is entered, the diameter of the water outlet pipe gradually increases along the direction of water movement, and the flow speed of the water slows down, and the gas mixed in the water will be released as nanoscale bubbles, and the water is rich in micro-nano bubbles.

[0010] Further, the water inlet pipe, the water outlet pipe and the air inlet pipe are externally threaded. Through the above design, the pipeline type micro-nano aeration device can be connected to the existing product as a whole, that is, without changing the existing process and equipment, it can be quickly installed and replaced, the operation is simple, the aeration efficiency is high, the operation cost is low, and it is an environmentally friendly water treatment aeration device. The water outlet has external threads and can be installed in the pipeline through threads, or can be directly vented.

[0011] Further, the medium of the water flow includes one or more of water, aqueous solution, organic solution and organic mixed solution.

[0012] Further, the gas includes one or more of air, oxygen, hydrogen, nitrogen and ozone.

[0013] Further, the water inlet can be connected to a liquid flow meter to measure the flow rate of the water flow into the pipeline type micro-nano aeration device.

[0014] Further, the water inlet can be externally connected to a flow control valve to adjust the pressure and flow rate of the water flow into the pipeline type micro-nano aeration device.

[0015] Further, the air inlet can be externally connected to a gas flow meter to measure the flow rate of the gas into the pipeline type micro-nano aeration device.

[0016] Further, the air inlet can be externally connected to a control valve to adjust the pressure and flow rate of the gas into the pipeline type micro-nano aeration device.

[0017] Further, the material of the pipeline type micro-nano aeration device is stainless steel.

[0018] According to an embodiment of the present application, the strip-shaped body is provided with sawtooth-shaped protrusions on both sides, and a sharp top is arranged at the end of the strip-shaped body. The strip-shaped body is arranged obliquely, and the strip-shaped bodies on the sliding plate are arranged in the same angle.

[0019] Through the above design, in the process of mixing liquid and gas in the inner tube, the liquid passes through the strip-shaped body, and since the strip-shaped body is provided with serrated protrusions on both sides and the top end of each serrated protrusion has a sharp top, the liquid in the inner tube can be repeatedly cut, that is, the larger bubbles in the liquid can be cut, the direct mixing effect of the gas and the liquid can be further achieved, the pollutants or particulate matters that may exist in the liquid can be cut or dispersed, the flow path of the liquid in the inner tube can be improved, and the efficiency of the gas entering the water phase can be improved; the strip-shaped body is arranged obliquely, and more preferably, the oblique angle of the strip-shaped body is along the water flow direction, so that the strip-shaped body can be prevented from collapsing due to too fast water flow, the service life of the strip-shaped body can be improved, the water body can be guided to a certain extent, and the mixing effect of the water body and the gas in the inner tube can be further improved; the strip-shaped bodies on the sliding plate are twisted at the same angle, so that the flow direction of the liquid can be guided, that is, a strong vortex can be achieved, the mixing efficiency of the liquid and the gas can be improved, and the flow rate of the liquid can be stabilized.

[0020] According to an embodiment of the present application, the water inlet pipe is connected with a filter assembly, the filter assembly comprises a shell, a cavity is arranged in the shell, a filter screen is arranged in the middle of the cavity, the filter screen divides the cavity into an inlet cavity and an outlet cavity, a liquid inlet pipe is arranged on one side of the inlet cavity, a liquid outlet pipe is arranged on one side of the outlet cavity, and the liquid outlet pipe is arranged in cooperation with the water inlet pipe.

[0021] The liquid enters the shell through the liquid inlet pipe on one side of the inlet cavity of the filter assembly, the liquid enters the outlet cavity through the filter screen from the inlet cavity, and then enters the water inlet pipe through the liquid outlet pipe. Through the above design, the filter assembly is arranged before the water inlet pipe, so that the water entering the base pipe can be filtered, the pollutants or particulate matters in the water can be filtered and adsorbed, the particulate matters or pollutants can be prevented from blocking the aeration holes of the inner tube, the flow rate of the water can be improved, and the mixing efficiency of the liquid and the gas can be improved; in addition, the filter screen can balance and stabilize the flow of the liquid.

[0022] According to an embodiment of the present application, the liquid inlet pipe extends to the inlet cavity and has a liquid inlet elbow pipe, the liquid inlet elbow pipe discharges the liquid from above the filter screen, and the liquid inlet elbow pipe faces away from the filter screen.

[0023] Through the above design, the liquid inlet elbow pipe is arranged in a bent manner and discharges the liquid away from the filter screen, so that the liquid in the inlet cavity has a residence time extension, which can reduce the time of the liquid passing through the filter screen, improve the filtering effect of the liquid, improve the quality of the liquid entering the base pipe, drive the flow of the liquid in the inlet cavity, improve the flow efficiency of the liquid in the inlet cavity, prevent part of the liquid in the inlet cavity from depositing without passing through the filter screen, and achieve uniform composition of the liquid flowing into the base pipe.

[0024] According to an embodiment of the present application, a stirring assembly is arranged in the liquid outlet cavity, and the stirring assembly comprises a stirring shaft, and the stirring shaft penetrates through the shell on one side and is connected with the fixing member;

[0025] The stirring shaft is arranged opposite to the liquid outlet pipe, and blade assemblies are arranged on the stirring shaft at intervals.

[0026] According to an embodiment of the present application, the blade assembly comprises a rotating disc, a fixed plate is arranged on one side of the rotating disc, a rotating vane is arranged between the fixed plate and the rotating disc, and the fixed plate and the rotating disc are connected through bolts;

[0027] The rotating vane is arranged in an arc shape.

[0028] Through the above design, the stirring assembly is arranged in the liquid outlet cavity, that is, when the liquid enters the liquid outlet cavity from the filter screen, the liquid drives the rotating vane to rotate in the process of being discharged, the rotating vane drives the rotating shaft to rotate in the process of rotating, so as to make the liquid discharged from the liquid inlet cavity in a cyclone state, the cyclone formed is beneficial to the subsequent entering into the inner pipe to form a cyclone and improve the mixing effect with the gas; in addition, the rotating motion of the stirring shaft and the rotating vane can cut the unfiltered particles in the water body, so as to avoid that the large particles cause the blockage of the aeration holes in the inner wall of the inner pipe; at the same time, the rotating motion of the stirring shaft and the rotating vane can push the liquid forward, promote the cyclone to be discharged from the liquid outlet pipe, and improve the water flow effect.

[0029] The pipeline type micro-nano aeration method applies the above-mentioned steam condensate water corrosion monitoring device, and comprises the following steps:

[0030] S1: the liquid flows into the inner pipe from the water inlet pipe;

[0031] S2: when the liquid flows through the inner pipe, a negative pressure is formed, the gas required to be dissolved into the water phase is sucked into the cavity through the gas inlet, and the gas enters the inner pipe through the aeration holes and combines with the water phase;

[0032] S3: the medium in the inner pipe is fully mixed under the action of the disturbing member;

[0033] S4: the mixed liquid is discharged from the water outlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a sectional view of the base pipe;

[0035] Figure 2 It is a perspective view of the disturbing member;

[0036] Figure 3 It is a perspective view of the sliding plate;

[0037] Figure 4 It is a cooperation schematic view of the base pipe and the filter assembly;

[0038] Figure 5This is a cross-sectional view of the filter assembly;

[0039] Figure 6 This is a three-dimensional schematic diagram of the stirring shaft;

[0040] Figure 7 This is a schematic diagram of the overall structure in Example 3;

[0041] Figure 8 This is a schematic diagram of the overall structure in Example 4;

[0042] Figure 9 This is a schematic diagram of the overall structure in Example 5;

[0043] Figure 10 This is a particle size distribution diagram of micro / nano bubbles.

[0044] Reference numerals: Base pipe 1, Inlet pipe 11, Outlet pipe 12, Inner pipe 13, Cavity 14, Aeration hole 15, Air inlet pipe 16, Disturbing component 2, Sliding plate 21, First spring 22, Strip body 23, Filter assembly 3, Shell 31, Filter screen 32, Liquid inlet chamber 33, Liquid outlet chamber 34, Liquid inlet pipe 35, Liquid outlet pipe 36, Liquid inlet bend 37, Stirring assembly 4, Fixing component 41, Stirring shaft 42, Blade assembly 43, Turntable 44, Fixing plate 45, Rotating blade 46, Main liquid inlet pipe 51, Main air inlet pipe 52, Fixing frame 53, Connecting frame 54, Metal mesh 55, Connecting rod 56, Hydraulic rod 57, Rope 61, Floating assembly 6, Floating base 62, Counterweight 63, Assembly rod 64. Detailed Implementation

[0045] The technical solution of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings:

[0046] Example 1:

[0047] like Figure 1 - Figure 3 As shown, the pipeline-type micro-nano aeration device includes a base pipe 1, with an inlet pipe 11 and an outlet pipe 12 at both ends of the base pipe 1. An inner pipe 13 is provided inside the base pipe 1, with the inlet pipe 11 and the outlet pipe 12 connected to both ends of the inner pipe 13. A cavity 14 is provided between the inner pipe 13 and the base pipe 1. Aeration holes 15 are provided on the wall of the inner pipe 13. An air inlet pipe 16 is provided on the side of the base pipe 1, and the air inlet pipe 16 is connected to the cavity 14. A disturbance element 2 is provided inside the inner pipe 13 and is arranged parallel to the axis of the inner pipe 13. The disturbance element 2 includes an annular sliding plate 21. A first spring 22 is provided on the opposite side of adjacent sliding plates 21. Strip-shaped bodies 23 are uniformly provided on the inner side of the sliding plate 21 and extend toward the axis of the inner pipe 13.

[0048] Through the design of the whole device of the pipeline type micro-nano aeration device, the water body enters into the inner pipe 13 from the water inlet pipe 11, and the water body is discharged from the water outlet pipe 12 after flowing through the inner pipe 13. In this process, the water body forms a negative pressure when flowing through the inner pipe 13, and the gas needed to be dissolved into the water phase is sucked into the cavity 14 through the gas inlet. When the water body flows through the inner pipe 13 at high speed, the negative pressure formed by the water body will suck the gas into the cavity 14 through the gas inlet pipe 16 and into the water phase through the aeration holes 15 on the inner pipe 13, and then the water body is discharged through the water outlet pipe 12. In this process, the gas forms micro-nano bubbles, and the hydrodynamic rotation cutting is applied to the gas-liquid mixing process, so that the mixing and transmission of the gas-liquid two-phase medium can be completed in one step. The micro-nano bubbles produced at the same time generate free radical hydroxyl groups, which have an oxidation decomposition effect, and can increase the oxygen content of the water body while degrading part of the organic pollutants in the water body. The inner pipe 13 contains a plurality of disturbance pieces 2, which can move in the axial direction of the inner pipe 13, i.e. the sliding plate 21 can move in the axial direction of the inner pipe 13. When the gas enters the water phase through the aeration holes 15, it can improve the mixing effect of the water body and the gas in the inner pipe 13, i.e. when the water body and the gas are mixed, the liquid will form a straight flow in the inner pipe 13, at which time the liquid will drive the sliding plate 21 to move and rotate. The opposite side of the adjacent sliding plate 21 is provided with a first spring 22, which can prevent the sliding plate 21 from colliding during movement and rotation, and at the same time make the adjacent sliding plate 21 have a certain interval. During the sliding and rotation of the sliding plate 21, the strip-shaped body 23 can be moved and rotated, which can improve the mixing effect of the liquid and the gas. At the same time, during the movement and rotation of the sliding plate 21, the sliding plate 21 will slide relative to the inner wall of the inner pipe 13, which can prevent the inner wall of the inner pipe 13 from being left with residues, prevent impurities or other dirt from blocking the aeration holes 15, and affect the mixing effect of the gas and the liquid. In addition, the strip-shaped body 23 can reduce the flow speed of the liquid and the gas in the inner pipe 13, increase the pressure of the medium in the inner pipe 13, and increase the flow rate of the medium discharged from the inner pipe 13.

[0049] Further, the diameter of the aeration hole 15 is between 0.5-5mm. Further, the diameter of the water inlet pipe 11 gradually decreases in the direction of water flow, and the diameter ratio of the two ends is 2:1. Further, the diameter of the water outlet pipe 12 gradually increases in the direction of water flow, and the diameter ratio of the two ends is 1:2.5. Through the above design, when the water flows through the liquid inlet pipe 35, the water flow speed increases due to the decrease of the diameter of the liquid inlet pipe 35 in the process of water flow, and the negative pressure formed when the water flows through the inner pipe 13 at high speed will suck the gas into the cavity 14 through the air inlet pipe 16 and into the water phase through the aeration hole 15 on the inner pipe 13; after the gas and liquid are fully mixed and high-speed vortex is generated, the water enters the water outlet pipe 12, the diameter of the water outlet pipe 12 gradually increases along the direction of water movement, the flow speed of the water slows down, and the gas mixed in the water will be released as nanoscale bubbles, and the water is rich in micro-nano bubbles. As shown in Figure 10

[0050] Further, the water inlet pipe 11, the water outlet pipe 12 and the air inlet pipe 16 are externally threaded. Through the above design, the pipeline type micro-nano aeration device can be connected to the existing product as a whole, that is, without changing the existing process and equipment, it can be quickly installed and replaced, the operation is simple, the aeration efficiency is high, the operation cost is low, and it is an environmentally friendly water treatment aeration device. Among them, the water outlet pipe 12 has external threads and can be installed in the pipeline by threads, or can be directly empty.

[0051] Further, the liquid medium includes one or more of water, aqueous solution, organic solution, and organic mixed solution.

[0052] Further, the gas includes one or more of air, oxygen, hydrogen, nitrogen, and ozone.

[0053] Further, the water inlet can be connected to a liquid flow meter to measure the flow rate of water entering the pipeline type micro-nano aeration device.

[0054] Further, the water inlet can be externally connected to a flow control valve to adjust the pressure and flow rate of the water entering the pipeline type micro-nano aeration device.

[0055] Further, the air inlet can be externally connected to a gas flow meter to measure the flow rate of the gas entering the pipeline type micro-nano aeration device.

[0056] Further, the air inlet can be externally connected to a control valve to adjust the pressure and flow rate of the gas entering the pipeline type micro-nano aeration device.

[0057] ​Further, the material of the pipeline type micro-nano aeration device is stainless steel.

[0058] The strip-shaped body 23 is provided with serrated protrusions on both sides, and a pointed top at the end of the strip-shaped body 23. The strip-shaped body 23 is arranged at an angle, and the strip-shaped body 23 on the sliding plate 21 is arranged at the same angle.

[0059] Through the above design, during the mixing of the liquid and the gas in the inner tube 13, the liquid passes through the strip-shaped body 23. Since the strip-shaped body 23 is provided with serrated protrusions on both sides and a pointed top at the end, the mixed liquid in the inner tube 13 can be repeatedly cut, that is, the larger bubbles in the liquid can be cut, further realizing the direct mixing effect of the gas and the liquid. The pollutants or particulate matter that may exist in the liquid can be cut or dispersed, and at the same time, the flow path of the liquid in the inner tube 13 can be improved, and the efficiency of the gas entering the water phase can be improved. The strip-shaped body 23 is arranged at an angle, and further, the angle of the strip-shaped body 23 is along the direction of the water flow. This can prevent the water flow from being too fast to cause the strip-shaped body 23 to collapse, and can improve the service life of the strip-shaped body 23. At the same time, it can guide the water body to a certain extent, and can further promote the mixing effect of the water body and the gas in the inner tube 13. The strip-shaped body 23 on the sliding plate 21 is arranged at the same angle, which can guide the flow direction of the liquid, that is, a strong vortex can be realized. This can improve the mixing efficiency of the liquid and the gas, and at the same time, it can also stabilize the flow rate of the liquid.

[0060] The pipeline type micro-nano aeration method applies the above-mentioned steam condensate corrosion monitoring device, and includes the following steps:

[0061] S1: The liquid flows into the inner tube 13 from the water inlet pipe 11;

[0062] S2: When the liquid flows through the inner tube 13, a negative pressure is formed, and the gas required to be dissolved into the water phase is sucked into the cavity 14 through the gas inlet, and the gas enters the inner tube 13 and combines with the water phase through the aeration hole 15;

[0063] S3: The medium in the inner tube 13 is fully mixed under the action of the disturbing part 2;

[0064] S4: The mixed liquid is discharged from the water outlet pipe 12.

[0065] Example 2:

[0066] As Figure 4 - Figure 6As shown, the pipe type micro-nano aeration device according to another embodiment of the present application is different from that of example 1 in that the water inlet pipe 11 is connected with a filter assembly 3, the filter assembly 3 comprises a shell 31, a cavity is arranged in the shell 31, a filter screen 32 is arranged in the middle of the cavity, the filter screen 32 divides the cavity into an inlet liquid cavity 33 and an outlet liquid cavity 34, an inlet liquid pipe 35 is arranged on one side of the inlet liquid cavity 33, and an outlet liquid pipe 36 is arranged on one side of the outlet liquid cavity 34 and cooperates with the water inlet pipe 11.

[0067] The liquid enters the shell 31 from the inlet liquid pipe 35 arranged on one side of the inlet liquid cavity 33 of the filter assembly 3, and then enters the outlet liquid cavity 34 from the inlet liquid cavity 33 through the filter screen 32 and then enters the water inlet pipe 11 through the outlet liquid pipe 36. Through the above design, the filter assembly 3 is arranged before the water inlet pipe 11, which can filter the water entering the base pipe 1, prevent the pollutants or particulate matters in the water from being filtered and adsorbed, prevent the particulate matters or pollutants from blocking the aeration holes 15 of the inner pipe 13, and improve the flow speed of the water, thereby improving the mixing efficiency of the liquid and the gas. In addition, the filter screen 32 can realize the flow balance and stability of the liquid.

[0068] The inlet liquid pipe 35 extends to the inlet liquid cavity 33 and is provided with an inlet liquid elbow 37, the inlet liquid elbow 37 discharges the liquid from above the filter screen 32, and the inlet liquid elbow 37 faces away from the filter screen 32.

[0069] Through the above design, the inlet liquid elbow 37 is arranged in a bent manner and discharges the liquid away from the filter screen 32, which can prolong the residence time of the liquid in the inlet liquid cavity 33, which can reduce the time of the liquid passing through the filter screen 32, that is, can improve the filtering effect of the liquid, thereby improving the quality of the liquid entering the base pipe 1, and can drive the flow of the liquid in the inlet liquid cavity 33, which can improve the flow efficiency of the liquid in the inlet liquid cavity 33, that is, can prevent part of the liquid in the inlet liquid cavity 33 from being deposited without passing through the filter screen 32, and can realize the uniformity of the liquid composition flowing into the base pipe 1.

[0070] The outlet liquid cavity 34 is provided with a stirring assembly 4, the stirring assembly 4 comprises a stirring shaft 42, one side of the stirring shaft 42 penetrates the shell 31 and is connected with a fixing member 41.

[0071] The stirring shaft 42 is arranged opposite to the outlet liquid pipe 36, and the stirring shaft 42 is provided with a blade assembly 43 at intervals.

[0072] The blade assembly 43 comprises a rotating disc 44, a fixed plate 45 is arranged on one side of the rotating disc 44, a rotating blade 46 is arranged between the fixed plate 45 and the rotating disc 44, and the fixed plate 45 and the rotating disc 44 are connected by bolts.

[0073] The rotating blade 46 is arranged in an arc shape.

[0074] Through the above design, a stirring assembly 4 is provided in the liquid outlet chamber 34. When the liquid enters the liquid outlet chamber 34 from the filter screen 32, the liquid will drive the rotating blade 46 to rotate during the discharge process. The rotating blade 46 will drive the rotating shaft to rotate, so as to make the liquid discharged from the liquid inlet chamber 33 into a swirling state. The swirling flow is conducive to the subsequent swirling flow into the inner tube 13 and improves the mixing effect with the gas. In addition, the rotational movement of the stirring shaft 42 and the rotating blade 46 can cut the unfiltered particles in the water, avoiding the blockage of the aeration holes 15 on the inner wall of the inner tube 13 caused by large particles. At the same time, the rotational movement of the stirring shaft 42 and the rotating blade 46 can push the liquid forward, promote the swirling discharge of the liquid outlet pipe 36, and improve the water flow effect.

[0075] Example 3:

[0076] like Figure 7 As shown, the pipeline-type micro-nano aeration device according to another embodiment of the present invention differs from that in Example 1 in that multiple base pipes 1 are arranged side by side, the water inlet pipe 11 of each base pipe 1 is connected to the main liquid inlet pipe 51, and the air inlet pipe 16 of each base pipe 1 is connected to the main air inlet pipe 52.

[0077] Through the above design, the outlet pipe 12 is vented and can be used to supply air to the water tank or other equipment that requires air supply. By setting multiple parallel base pipes 1, the flow rate of the treated liquid can be increased, and the quality of the discharged liquid can be controlled. That is, when multiple base pipes 1 simultaneously aerate the liquid, the pressure of the gas and liquid is evenly distributed among the multiple base pipes 1, preventing uneven bubble diameter and changes in the degree of gas and liquid mixing when the gas and liquid pressure is unbalanced in some time periods, thereby improving the mixing effect of water and gas.

[0078] Furthermore, each base tube 1 is equipped with a fixing bracket 53 at the end away from the main liquid inlet pipe 51. The fixing bracket 53 is used to fix the base tube 1 to prevent the base tube 1 from vibrating during the aeration process. It can also prevent the internal parts or disturbance parts 2 of the base tube 1 from becoming loose or malfunctioning, and can also control the aeration position.

[0079] Example 4:

[0080] like Figure 8 As shown, the pipeline-type micro-nano aeration device according to another embodiment of the present invention differs from that in embodiment 3 in that a connecting frame 54 is provided on the upper side of a plurality of side-by-side base pipes 1, and no less than three metal meshes 55 are provided inside the connecting frame 54. A connecting rod 56 is provided on one side of the metal meshes 55, and the connecting rod 56 connects each metal mesh 55. A hydraulic rod 57 is provided on one side of the connecting rod 56, and the hydraulic rod 57 is used to move the connecting rod 56 along the length direction of the base pipe 1. The other end of the hydraulic rod 57 is connected to the connecting frame 54.

[0081] Through the above design, the hydraulic rod 57 is used to move the metal mesh 55 between the aeration position and the non-aeration position. The aeration position of the metal mesh 55 is located above the outlet pipe 12, and the non-aeration position of the metal mesh 55 is located inside the connecting frame 54. When the hydraulic rod 57 moves the metal mesh 55 to the aeration position, the liquid discharged from the outlet pipe 12 can be intercepted by the metal mesh 55, and larger air bubbles can be broken up, slowing down the flow rate of the liquid discharged from the outlet pipe 12, which is beneficial to the diffusion or mixing speed and effect of the liquid discharged from the outlet pipe 12. At the same time, it can prevent the water flow velocity at the outlet from being too high, which would cause excessive disturbance. In addition, by setting up the metal mesh 55 and the connecting frame 54, the weight of the overall device can be increased, and the stability of the overall device can be improved. Firstly, it can prevent the base pipe 1 from vibrating during the aeration process, and secondly, it can prevent the direction and position of the aeration of the overall device from shifting, which is beneficial to the aeration effect and stability when the outlet pipe 12 is vented.

[0082] Example 5:

[0083] like Figure 9 As shown, the pipeline-type micro-nano aeration device according to another embodiment of the present invention differs from that in embodiment 3 in that a rope 61 is connected to the top side of the connecting frame 54, and a floating component 6 is connected to the other side of the rope 61. The floating component 6 includes a floating base 62, a counterweight 63 is arranged around the floating base 62, and an assembly rod 64 is vertically arranged on the bottom side of the floating base 62. The end of the assembly rod 64 is connected to the rope 61.

[0084] The above design is applied to pond aeration. The floating substrate 62 provides buoyancy for the entire device, and the counterweights 63 surrounding the floating substrate 62 stabilize its position, preventing or reducing the possibility of waves capsizing it. A vertically mounted mounting rod 64 on the bottom of the floating substrate 62 connects the rope 61 to the connecting frame 54, allowing control of the depth of the base pipe 1 by adjusting the rope 61, thus achieving aeration at a specified depth. During aeration, water discharged through the outlet pipe 12... This device can create a certain flow in the water at a specified depth in the pond, increasing the flow rate of the water. Furthermore, when the metal mesh 55 is in the aeration position, the rising speed of the bubbles generated during aeration is reduced, achieving efficient oxygenation of the pond water. In addition, the micro-nano bubbles generated by this device burst during their ascent, producing free radical hydroxyl groups, which can increase dissolved oxygen in the water while also degrading some organic pollutants. This effectively purifies the excrement of aquatic organisms or other pollutants in the pond, improving the water quality.

[0085] The above embodiments of the present application are described in detail, it should be understood that the above description is only a specific embodiment of the present application, and is not intended to limit the present application, any modification, supplement or similar way of substitution within the principle range of the present application, should be included in the protection scope of the present application.

Claims

1. A pipeline-type micro-nano aeration device, comprising a base pipe (1), wherein an inlet pipe (11) and an outlet pipe (12) are respectively provided at both ends of the base pipe (1), an inner pipe (13) is provided inside the base pipe (1), the inlet pipe (11) and the outlet pipe (12) are respectively connected at both ends of the inner pipe (13), a cavity (14) is provided between the inner pipe (13) and the base pipe (1), aeration holes (15) are arranged on the wall of the inner pipe (13), and an air inlet pipe (16) is provided on the side of the base pipe (1), the air inlet pipe (16) being connected to the cavity (14), characterized in that, The inner tube (13) is provided with a disturbing part (2) arranged in parallel along the axis of the inner tube (13), the disturbing part (2) comprises annular sliding plates (21), first springs (22) are arranged on opposite sides of adjacent sliding plates (21), and strip bodies (23) are uniformly arranged on the inner sides of the sliding plates (21) and extend towards the axis of the inner tube (13); The water inlet pipe (11) is connected with a filtering assembly (3), the filtering assembly (3) comprises a shell (31), a cavity is arranged in the shell (31), a filter screen (32) is arranged in the middle of the cavity, the filter screen (32) divides the cavity into an inlet liquid cavity (33) and an outlet liquid cavity (34) from top to bottom, an inlet liquid pipe (35) is arranged on one side of the inlet liquid cavity (33), an outlet liquid pipe (36) is arranged on one side of the outlet liquid cavity (34), and the outlet liquid pipe (36) is arranged in cooperation with the water inlet pipe (11); and a stirring assembly (4) is arranged in the outlet liquid cavity (34); The strip bodies (23) are provided with sawtooth-shaped protrusions on both sides, the strip bodies (23) are provided with pointed tops at the ends, and the strip bodies (23) are arranged in an inclined manner, and the strip bodies (23) on the sliding plates (21) are arranged in a twisted manner along the same angle. The inlet liquid pipe (35) extends into the inlet liquid cavity (33) and is provided with an inlet liquid elbow (37), the inlet liquid elbow (37) discharges liquid from above the filter screen (32), and the inlet liquid elbow (37) faces away from the filter screen (32).

2. The pipeline micro-nano aeration device according to claim 1, characterized in that, The stirring assembly (4) comprises a stirring shaft (42), one side of the stirring shaft (42) penetrates through the shell (31) and is connected with a fixing part (41); The stirring shaft (42) is arranged opposite to the outlet liquid pipe (36), and blade assemblies (43) are arranged on the stirring shaft (42) at intervals; A plurality of base pipes (1) are arranged side by side, the water inlet pipes (11) of the base pipes (1) are communicated with a total inlet liquid pipe (51), and the air inlet pipes (16) of the base pipes (1) are connected with a total air inlet pipe (52).

3. The pipeline micro-nano aeration device according to claim 2, characterized in that, The blade assembly (43) comprises a rotating disc (44), a fixed plate (45) is arranged on one side of the rotating disc (44), a rotating blade (46) is arranged between the fixed plate (45) and the rotating disc (44), and the fixed plate (45) and the rotating disc (44) are connected by bolts; The rotating blade (46) is arranged in an arc shape.

4. A method of micro- and nano-aeration by means of pipes, characterized by The pipeline type micro-nano aeration device is applied to any one of claims 1-3 and comprises the following steps: S1: liquid flows into the inner tube (13) from the water inlet pipe (11); S2: when the liquid flows through the inner tube (13), a negative pressure is formed, the gas required to be dissolved into the water phase is sucked into the cavity (14) through the air inlet, and the gas enters the inner tube (13) and combines with the water phase through the aeration holes (15); S3: the medium in the inner tube (13) is fully mixed under the action of the disturbing part (2); S4: the mixed liquid is discharged from the water outlet pipe (12). ​

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