CN211999068U - Cyclone aerator and cyclone aeration device with same - Google Patents

Abstract

The utility model discloses a swirl aerator and a swirl aerator having the same. The swirl aerator comprises a base, a cylinder, an air intake pipe, an airflow guide and a bubble generator. The cylinder body is arranged on the base, and the air intake pipe extends into the cylinder body from the top of the cylinder body and extends to the lower part of the cylinder body; a guide channel is formed in the airflow guide, and the guide channel has an airflow inlet and a plurality of airflow outlets. The air pipes are connected, and the plurality of air flow outlets are rotationally symmetrical about the central axis of the cylinder; the air bubble generator is arranged above the air flow guide, and the air bubble generator includes a plurality of air bubble cutting impellers. According to the swirl aerator of the present invention, the problem of tearing of the cylinder body and the air intake pipe can be effectively avoided, and the stability and force balance during the working process of the swirl aerator can be ensured. Arranging multiple bubble cutting impellers can make the bubble refinement effect better, thereby further increasing the dissolved oxygen rate and strengthening the aeration effect.

Description

Cyclone aerator and cyclone aerator having the same

technical field

The utility model relates to the technical field of sewage treatment, in particular to a cyclone aerator and a cyclone aerator having the same.

Background technique

It is pointed out in the related art that in the field of landfill leachate, hazardous waste treatment wastewater, slaughter wastewater and chemical wastewater, especially in the field of high ammonia nitrogen wastewater treatment, it is necessary to supply a large amount of oxygen to the aeration tank through a fan to remove ammonia nitrogen in the wastewater. In order to improve the efficiency of oxygen supply and dissolved oxygen in sewage, the technology of aerators is also constantly improving. The choice of aerators not only affects the effect of biochemical treatment of wastewater, but also directly affects land occupation, investment, operation stability and operation efficiency. Fan energy consumption.

At present, there are various forms of aerobic aeration systems at home and abroad, mainly including microporous aerators, jet aerators and cyclone aerators. In the early stage of installation of the microporous aerator, the dissolved oxygen efficiency is high and the biochemical treatment effect is good. However, with the extension of the operating time, the micropores on the aerator will gradually become smaller and blocked, resulting in increased energy consumption of the fan and even damage to the fan. . The jet aerator is connected to the compressed air pipeline through the link of the water pump to realize the formation of fine bubbles by the water jet. The air in the bubbles is fully contacted with the water, and the oxygen is dissolved in the water to achieve the effect of aeration. The jet aerator has high oxygen dissolution efficiency, but consumes a lot of energy. It requires fans and water pumps to operate at the same time, and the equipment mainly relies on imports, and the failure rate of domestic equipment is high; for the swirling aerator, the intake pipe is set on the side of the cylinder, and the The intake position of the body is connected to an upward elbow. The intake pipe is set on the side. When the fan blows and intakes, it will vibrate. After long-term operation, fatigue fracture will occur at the connection with the cylinder, and the aerator will be damaged. , During the maintenance of the fan equipment of the aeration tank, the sludge will block the upward elbow under the action of gravity. When the equipment resumes operation after the maintenance, it will not be able to aerate or even damage the fan. In addition, the currently disclosed cyclone aerator cylinder The body structure is complex, the processing is difficult, and the cost is high, and the multi-layer blade structure is easy to loosen and fall off under the action of hydraulic scouring and lose the function of the aerator.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the present utility model proposes a cyclone aerator and a cyclone aerator having the same. The cyclone aerator can ensure the stability and force balance in the aeration process.

The utility model also proposes a cyclone aeration device with the above cyclone aerator.

The cyclone aerator according to the first aspect of the present invention comprises: a base; a cylinder, the cylinder is arranged on the base, the axis of the cylinder extends in the up-down direction and the top and the bottom are open; a trachea, the air intake pipe extends from the top of the cylinder into the cylinder and extends to the lower part of the cylinder along the axial direction of the cylinder; an air flow guide, which is arranged in the cylinder , a guide channel is formed in the airflow guide, the guide channel has an airflow inlet and a plurality of airflow outlets, the airflow inlet is connected with the air intake pipe, and the multiple airflow outlets are about the central axis of the cylinder Rotationally symmetrical, and the airflow outlet is configured to be suitable for jetting airflow obliquely upward and along the circumferential direction of the cylinder; a bubble generator, which is arranged above the airflow guide, and the bubbles generate The device includes a plurality of bubble cutting impellers, and the plurality of the bubble cutting impellers are arranged at intervals in the axial direction of the cylinder body.

According to the swirl aerator of the present invention, by setting the intake pipe to extend into the cylinder from the top of the cylinder for aeration, the swirl aerator is formed into a structure in which the intake pipe takes in air from the center of the cylinder, It can effectively avoid the tearing of the cylinder and the intake pipe, and ensure the stability and force balance of the cyclone aerator during the working process. At the same time, by arranging multiple bubble cutting impellers along the axial direction of the cylinder, the bubbles The refinement effect is better, thereby further increasing the dissolved oxygen rate and strengthening the aeration effect.

According to some embodiments of the present invention, the included angle between the central axis of the airflow outlet and the horizontal plane is in the range of 30 degrees to 90 degrees.

In some embodiments of the present invention, the airflow guide includes: a vertical pipe, the vertical pipe is fixedly connected with the air intake pipe, a plurality of guide pipes, one end of the guide pipe is connected and communicated with the vertical pipe, The other end of the guide tube extends to be tangent to the inner peripheral wall of the cylinder.

Further, the vertical pipe is connected with the air intake pipe by screw threads, and the direction of screw fastening of the vertical pipe and the intake pipe is the same as the direction of the reaction force of the airflow outlet when the airflow is injected.

In some embodiments, the lower end of the vertical pipe is fixed on the base, and the other end of the guide pipe is fixedly connected with the cylinder.

Further, the distance between the lower end edge of the cylinder body and the lower end edge of the base is in the range of 0.2m to 0.5m.

According to some embodiments of the present invention, a plurality of the bubble cutting impellers are rotatably sleeved on the outer side of the air intake pipe, and the bubble cutting impellers are configured to be adapted to be surrounded by fluid impact from bottom to top The central axis rotates.

Further, the bubble cutting impeller comprises: a shaft sleeve part sleeved on the air inlet pipe and connected with the air inlet pipe in a threaded connection; a blade part, the blade part is rotatably sleeved on the air inlet pipe. On the radially outer side of the sleeve part, the blade part is provided with a plurality of rotating blades arranged at intervals in the circumferential direction of the blade part, and the rotating blades extend outward in the radial direction of the blade part and extends adjacent to the inner surface of the barrel.

Further, the screwing direction of the sleeve part and the air intake pipe is the same as the rotation direction of the blade part under the impact of fluid from bottom to top.

In a specific example, both axial ends of the shaft sleeve portion are provided with a locking washer and a locking nut, and the locking nut is threadedly connected to the air intake pipe.

According to some embodiments of the present invention, the bubble generator includes: at least three bubble cutting impellers, and the bubble cutting impeller located at the top of the at least three bubble cutting impellers is arranged on the cylinder body and the radially inner end of the uppermost bubble cutting impeller is fixed with the air intake pipe and the radially outer end is fixed with the cylinder body.

The swirl aerator according to the second aspect of the present invention comprises: a plurality of swirl aerators, the swirl aerators are the swirl aerator according to the first aspect of the present invention; The fan has an air outlet, and the air outlet is connected with the air inlet pipe; the air inlet pipes of the plurality of swirl aerators are connected in parallel.

According to the swirl aerator of the present invention, by setting the swirl aerator of the first aspect, the dissolved oxygen rate can be increased, and the aeration effect can be enhanced.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

Fig. 1 is the schematic diagram of the cyclone aeration device according to the embodiment of the second aspect of the present invention;

Fig. 2 is the schematic diagram of the cyclone aerator shown in Fig. 1;

Figure 3 is a schematic view of the bubble generator shown in Figure 2;

FIG. 4 is a schematic view of the airflow guide shown in FIG. 2 .

Reference number:

Cyclone aeration device 100:

fan 1,

Cyclone aerator 2,

base 21, cylinder 22, air intake pipe 23,

Air flow guide 24, vertical pipe 241, guide pipe 242, air outlet 2421,

Bubble generator 25 , bubble cutting impeller 251 , bushing part 2511 , blade part 2512 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

The cyclone aerator 2 according to the embodiment of the first aspect of the present invention will be described below with reference to FIGS. 1 to 4 .

As shown in FIG. 2 , the swirl aerator 2 according to the embodiment of the first aspect of the present invention includes: a base 21 , a cylinder 22 , an air intake pipe 23 , an airflow guide 24 and a bubble generator 25 .

Specifically, the cylinder body 22 is provided on the base 21, the axis of the cylinder body 22 extends in the up-down direction, and the top and bottom of the cylinder body 22 are open; 23 extends to the lower part of the cylinder body 22 along the axial direction of the cylinder body 22; the airflow guide 24 is arranged in the cylinder body 22, and a guide channel is formed in the airflow guide member 24, and the guide channel has an airflow inlet and a plurality of airflow outlets 2421, and the airflow The inlet is connected to the air inlet pipe 23, the plurality of air flow outlets 2421 are rotationally symmetric about the central axis of the cylinder 22, and the air outlet 2421 is configured to be suitable for sloping upward and jetting airflow along the circumferential direction of the cylinder 22; the air bubble generator 25 is provided at the Above the airflow guide 24 , the bubble generating includes a plurality of bubble cutting impellers 251 , and the plurality of bubble cutting impellers 251 are arranged at intervals in the axial direction of the cylindrical body 22 . Therefore, in this embodiment, the air intake pipe 23 is extended from the top of the cylindrical body 22 into the cylindrical body 22 for aeration, so that the swirl aerator 2 is formed into a structure in which the air intake pipe 23 takes in air from the center of the cylindrical body 22, which is the same as In the related art, the air intake pipe 23 is connected to the side wall of the cylinder body 22 through and through, and the air is aerated into the cylinder body 22 through a curved pipe with an upward opening. The swirl aerator 2 is damaged due to fatigue fracture at the connection. On the other hand, when the fan 1 of the swirl aeration device 100 is overhauled, the sludge will block the upward bend under the action of gravity, resulting in swirl aeration. The fan 2 cannot aerate or even damage the fan 1. In addition, the multiple bubble cutting impellers 251 in this embodiment can refine the bubbles, increase the dissolved oxygen rate, and strengthen the aeration effect.

The working principle of the swirl aerator 2 of the present invention is as follows: during operation, the air intake pipe 23 is connected with the fan 1 (as described below) Enter the guide channel, and exhale from the multiple airflow outlets 2421 to form a spiral upward airflow. After the airflow rises, a vacuum is generated at the bottom, and through negative pressure suction, the waste water enters the cyclone aerator 2 and forms a steam-water mixture with the air, and spiral upward. The rising soda-water mixture hits the bubble generator 25 and makes it rotate rapidly. When the soda-water mixture passes through, the large bubbles are cut into small bubbles, and through the cutting of the bubble generator 25, the bubbles are continuously refined and become micro-bubbles It is evenly dissolved in water to achieve the effect of aeration and aeration. The swirling flow formed at the same time further increases the hydraulic agitation and enhances the efficiency of the colony in the wastewater.

According to the swirl aerator 2 of the present invention, the swirl aerator 2 is formed such that the intake pipe 23 extends from the top of the cylinder 22 into the cylinder 22 for aeration, so that the intake pipe 23 extends from the cylinder 22 The structure of central air intake can effectively avoid the tearing problem of the cylinder body 22 and the intake pipe 23, and ensure the stability and force balance of the cyclone aerator 2 during the working process. Arranging a plurality of bubble cutting impellers 251 can make the bubble refinement effect better, thereby further increasing the dissolved oxygen rate and strengthening the aeration effect.

According to some embodiments of the present invention, the included angle between the central axis of the airflow outlet 2421 and the horizontal plane is in the range of 30 degrees to 90 degrees, for example, the included angle between the central axis of the airflow outlet 2421 and the horizontal plane may be 30 degrees , 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees or 90 degrees, in this way, it is convenient for the ejected airflow to rise.

Referring to FIGS. 2 and 4 , in some embodiments of the present invention, the airflow guide 24 may include: a vertical pipe 241 and a plurality of guide pipes 242 . Specifically, the standpipe 241 is fixedly connected to the intake pipe 23, one end of the guide pipe 242 (for example, the upper end in the guide pipe 242 shown in FIG. 1 ) is connected and communicated with the standpipe 241, and the other end of the guide pipe 242 (for example, the upper end of the guide pipe 242 shown in FIG. The lower end of the guide tube 242 shown in Fig. 1) extends to be tangent to the inner peripheral wall of the cylindrical body 22, and in the direction from the vertical pipe 241 toward the cylindrical body 22 in the radial direction, the guide tube 242 is along the circumferential direction of the cylindrical body 22. The other end of the guide pipe 242 is formed as an air outlet 2421 whose central axis is inclined upward and extends downward. In this way, the air in the intake pipe 23 can flow to the guide pipe 242 through the vertical pipe 241, and the guiding effect of the guide pipe 242 is used. , the airflow flowing from top to bottom in the intake pipe 13 is guided to flow along the circumferential direction of the cylindrical body 22 , thereby forming a rotating upward airflow in the cylindrical body 22 . Therefore, on the one hand, the gas flowing vertically downward in the vertical pipe 241 can be guided to the inner peripheral wall of the cylinder 22, and the gas ejected from the airflow outlet 2421 can be formed into a spirally rising airflow, and on the other hand, the guide pipe The 242 is inclined downward, which can increase the upward stroke of the airflow in the water to a certain extent, so as to achieve the purpose of full dissolution.

Further, referring to FIG. 2 , the vertical pipe 241 is connected with the air intake pipe 23 by thread, and the direction of thread fastening of the vertical pipe 241 and the air intake pipe 23 is the same as the direction of the reaction force of the airflow outlet 2421 when the airflow is sprayed, so that the vertical pipe 241 can be further improved. The stability of the connection between the pipe 241 and the intake pipe 23 prevents loosening of the connection between the vertical pipe 241 and the intake pipe 23 during long-term operation.

In some embodiments, the lower end of the stand pipe 241 is fixed on the base 21 , and the other end of the guide pipe 242 is fixedly connected with the cylinder 22 . It can be welded with the inner peripheral wall of the cylinder body 22 , so as to ensure the connection stability of the airflow guide 24 and prevent the airflow guide 24 from shaking or even damaged when the airflow is ejected from the airflow guide 24 . At the same time, the airflow guide 24 can also have the effect of fixing the lower end of the cylindrical body 22 .

Further, the distance between the lower end edge of the cylinder body 22 and the lower end edge of the base 21 is in the range of 0.2m to 0.5m, for example, the distance between the lower end edge of the cylinder body 22 and the lower end edge of the base 21 may be 0.2 m, 0.3m, 0.4m or 0.5m, in this way, the lower end of the cylinder 22 can be kept at a sufficient distance from the sludge settled to the bottom, so as to ensure that the sewage has enough space to enter the cylinder 22 from the lower end of the cylinder 22, Mix with gas.

According to some embodiments of the present invention, a plurality of bubble cutting impellers 251 are rotatably sleeved on the outer side of the air inlet pipe 23, and the bubble cutting impellers 251 are configured to rotate around their central axis under the impact of fluid from bottom to top In this way, the bubble cutting impeller 251 can rotate rapidly under the impact of the fluid force to cut the rising large bubbles into tiny bubbles, thereby increasing the dissolved oxygen rate and realizing the effect of aeration.

Further, referring to FIG. 2 and FIG. 3 , the bubble cutting impeller 251 may include: a bushing part 2511 and a blade part 2512 . Specifically, the shaft sleeve part 2511 is sleeved on the air inlet pipe 23 and is threadedly connected with the air inlet pipe 23, so as to prevent the connection between the bubble cutting impeller 251 and the air inlet pipe 23 from loosening; the blade part 2512 is rotatably sleeved on the shaft sleeve part 2511 The radial outer side of the blade portion 2512 is provided with a plurality of rotating blades, the plurality of rotating blades are arranged at intervals in the circumferential direction of the blade portion 2512, and the rotating blades extend outward along the radial direction of the blade portion 2512 and extend to the adjacent cylinder 22, in this way, the liquid can be fully stirred, and the air bubbles can also be fully cut to further improve the dissolved oxygen rate.

Optionally, the blade portion 2512 may be provided with 6 to 12 blades, for example, the blade portion 2512 may be provided with 6, 8, 10 or 12 blades; the angle between each blade and the horizontal plane is 30 degrees Within the range of 60 degrees, the angle between each blade and the horizontal plane is the same, which can easily refine the air bubbles and improve the dissolved oxygen rate and aeration effect.

Further, the screwing direction of the shaft sleeve portion 2511 and the air intake pipe 23 is the same as the rotation direction of the blade portion 2512 under the impact of the fluid from bottom to top, so that the thrust force generated by the fluid on the blade portion 2512 can make the shaft sleeve. The part 2511 and the intake pipe 23 are screwed together to prevent loosening.

In a specific example, both ends of the shaft sleeve portion 2511 in the axial direction (in the up and down direction as shown in FIG. 2 ) may be provided with a lock washer and a lock nut, and the lock nut is threadedly connected to the air intake pipe 23 . In this way, the connection between the shaft sleeve portion 2511 and the air intake pipe 23 can be strengthened and prevented from loosening.

According to some embodiments of the present invention, the bubble generator 25 may further include: at least three bubble cutting impellers 251 . That is, the number of bubble cutting impellers 251 may be three, four, five, six or more. Among them, a bubble cutting impeller 251 located at the top of the cylinder body 22 is arranged on the top of the cylinder body 22 , and the radial inner end of the uppermost bubble cutting impeller 251 is fixed to the air inlet pipe 23 and the radial outer end is fixed to the cylinder body 22 In this way, the bubble cutting impeller 251 at the top can be prevented from sliding out of the cylinder 22 upwards due to the loose connection between the shaft sleeve part 2511 and the air inlet pipe 23 during a long working process. At the same time, it also has the effect of fixing the upper end of the cylindrical body 22 by the uppermost bubble cutting impeller 251 .

Here, it should be noted that the radial outer end of the bubble cutting impeller 251 is fixed to the cylindrical body 22, which may refer to the fixing of the radial outer ends of the plurality of blades of the blade portion 2512 to the cylindrical body 22, for example , the radial outer ends of the plurality of blades are welded and fixed to the cylinder body 22. At this time, the blade portion 2512 of the uppermost bubble cutting impeller 251 is stationary and does not rotate. When the soda-water mixture below flows through the uppermost bubble cutting impeller At 251 , the bubble cutting impeller 251 cuts bubbles in a static state.

Of course, the radially outer end of the bubble cutting impeller 251 is fixed to the cylinder 22 . It can also refer to: the sleeve portion 2511 of the uppermost bubble cutting impeller 251 is provided with a radially outward extending to the inner peripheral wall of the cylinder 22 The connection part is fixedly connected with the cylinder body 22, for example, the connection part is connected with the cylinder body 22 by welding. At this time, the uppermost bubble cutting impeller 251 can fix the upper end of the cylinder 22, and when the lower soda-water mixture flows through the uppermost bubble cutting impeller 251, the bubble cutting impeller 251 can rotate under the impact of the fluid Movement to further cut the bubbles.

The cyclone aeration device 100 according to the second aspect of the present invention will be described below with reference to FIGS. 1 to 4 .

Referring to FIG. 1 , a swirl aerator 100 according to the second aspect of the present invention includes: a plurality of swirl aerators 2 and a fan 1 according to the first aspect of the present invention. Specifically, the fan 1 has an air outlet, which is connected to the air inlet pipe 23; the air inlet pipes 23 of the plurality of swirl aerators 2 are connected in parallel, whereby the fan 1 can drive the air flow into the air inlet pipe 23, so as to provide swirl aeration The device 2 provides continuous airflow, and at the same time, the inlet pipes 23 of the multiple cyclone aerators 2 are connected in parallel, which can further simplify the structure of the cyclone aerator 100 and facilitate maintenance.

For example, as shown in FIG. 1 , the intake pipes 23 of the multiple swirl aerators 2 may share the same main air intake pipe, each air intake pipe 23 is formed as a branch, and one end of the main air intake pipe is connected to the outlet of the fan 1 . The air inlets are connected to each other, and the air intake pipes 23 of the multiple branches can be evenly spaced along the extending direction of the main air intake pipe. The air flow in the pipe can flow to the air intake pipes 23 of the multiple branches respectively under the driving of the fan 1 , and then aerate into the cylinder 22 .

According to the swirl aerator 100 of the second aspect of the present invention, by setting the swirl aerator 2 of the first aspect, the dissolved oxygen rate can be increased, and the aeration effect can be enhanced.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the present invention. Variations, the scope of the present invention is defined by the claims and their equivalents.

Claims (12)

1. A cyclonic aerator, comprising:

a base;

the cylinder body is arranged on the base, the axis of the cylinder body extends along the vertical direction, and the top and the bottom of the cylinder body are both open;

the air inlet pipe extends into the barrel from the top of the barrel and extends to the lower part of the barrel along the axial direction of the barrel;

the airflow guide piece is arranged in the cylinder body, a guide channel is formed in the airflow guide piece, the guide channel is provided with an airflow inlet and a plurality of airflow outlets, the airflow inlet is connected with the air inlet pipe, the airflow outlets are rotationally symmetrical about the central axis of the cylinder body, and the airflow outlets are suitable for ejecting airflow obliquely upwards and along the circumferential direction of the cylinder body;

the bubble generator is arranged above the airflow guide piece, and comprises a plurality of bubble cutting impellers which are arranged at intervals in the axial direction of the cylinder.

2. The cyclonic aerator of claim 1, wherein the central axis of the airflow outlet is at an angle in the range of 30 degrees to 90 degrees to a horizontal plane.

3. A cyclonic aerator as claimed in claim 1 or 2, wherein the airflow guide comprises:

a vertical pipe which is fixedly connected with the air inlet pipe,

the device comprises a plurality of guide pipes, wherein one ends of the guide pipes are connected and communicated with the vertical pipe, and the other ends of the guide pipes extend to the inner peripheral wall of the cylinder body in a tangent mode.

4. The spiral-flow aerator of claim 3, wherein the standpipe is in threaded connection with the air inlet pipe, and the threaded fastening direction of the standpipe to the air inlet pipe is the same as the reaction force direction of the airflow outlet when injecting the airflow.

5. The cyclonic aerator of claim 3, wherein the lower end of the vertical tube is fixed to a base, and the other end of the guide tube is fixedly connected to the housing.

6. The cyclonic aerator of claim 5, wherein the lower edge of the cylinder is spaced from the lower edge of the base by a distance in the range of 0.2m to 0.5 m.

7. The cyclonic aerator of claim 1, wherein a plurality of the bubble cutter impellers are rotatably mounted to the outside of the air inlet pipe and are configured and adapted to rotate about their central axes upon being impinged upon by a fluid from below to above.

8. The cyclonic aerator of claim 7, wherein the bubble cutting impeller comprises:

the shaft sleeve part is sleeved on the air inlet pipe and is in threaded connection with the air inlet pipe;

the blade portion, blade portion rotationally overlaps and establishes the radial outside of axle sleeve portion, be equipped with on the blade portion a plurality of rotating vane of interval arrangement in the circumferential direction of blade portion, rotating vane follows the radial outside extension of blade portion and extend to the neighbouring the internal surface of barrel.

9. The spiral-flow aerator of claim 8, wherein the screw fastening direction of the boss portion and the air inlet pipe is the same as the rotation direction of the blade portion under the impact of the fluid from bottom to top.

10. The rotational flow aerator according to claim 8 or 9, wherein both axial ends of the boss portion are provided with a lock washer and a lock nut, and the lock nut is in threaded connection with the air inlet pipe.

11. The cyclonic aerator of claim 1, wherein the bubble generator comprises: at least three bubble cutting impeller, be located the top in the at least three bubble cutting impeller locates the top of barrel, and the top the radial inner of bubble cutting impeller with the intake pipe is fixed and radial outer end with the barrel is fixed.

12. A cyclonic aeration apparatus comprising:

a plurality of cyclonic aerators, the cyclonic aerators being in accordance with any one of claims 1-11;

the fan, the fan has the air outlet, the air outlet with the intake pipe links to each other.

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