Wind power fish pond aerator

Abstract

The invention relates to a wind power fishpond aerator which comprises a wind collecting device and a water drop blowing-out device which are arranged at a high position. The wind collecting device comprises two wind collectors with horn mouths and a square tube; a downwind port, a headwind port and a double-throw one-way valve are arranged in the square tube; the water drop blowing-out device comprises a stepped water barrel and a chute, a plurality of water pools are uniformly distributed on the stepped water barrel, and a communicating pool communicated with the water pools is arranged on the chute; one end of the air supply pipe is communicated with the square pipe through the round air port, and the other end is an air outlet pipe which is inserted into the inlet end of the stepped water drum and located under the water surface. The wind power is collected and the wind speed is increased through the wind collecting device, and the water body is blown out from the outlet end of the stepped water barrel by using the high-speed airflow generated by the air outlet pipe, so that the water body can fall into a pond after being in full contact with air. The utilization efficiency of wind power is greatly improved, the oxygen content in the pond can be kept in a sufficient state without consuming any electric power, and the device is very suitable for being applied to the field of aquaculture.

Description

Technical Field

[0001] The invention relates to the field of aquaculture, and in particular to a wind-powered fish pond aerator. Background Art

[0002] The statements in this section only provide background information related to the present disclosure, and these statements may constitute prior art. In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art.

[0003] With the development of society and the economy, more and more people are choosing industries such as agriculture and fisheries. The introduction of modern equipment has greatly improved production efficiency and reduced labor, especially for the development of the fishery industry. Aquatic products require oxygen for farming. When the solubility of oxygen in water is equal to 2 mg / L, the water will become smelly; and when the dissolved oxygen concentration in water is generally less than 5 mg / L, organisms cannot survive. Therefore, people often use oxygenation equipment to increase the amount of oxygen dissolved in the water to achieve the dissolved oxygen concentration required for normal fish growth. This solves the problem of fish floating due to lack of oxygen in aquaculture. It can also eliminate harmful gases, promote convection exchange in the water, improve water quality conditions, increase fish pond activity and primary productivity, and promote increased production.

[0004] Existing aeration equipment used in fish ponds typically uses power sources such as electric motors or diesel engines. This not only requires electricity costs to operate, increasing the cost of aquaculture, but also relies on electricity as the driving force, and the equipment is generally located in the center of the fish pond to maximize the oxygenation range. Even highly waterproof aerators are subject to leakage. Furthermore, considering the current state of aquaculture, most large-scale aquaculture areas are geographically remote, some even in newly developed swamps, without electricity as a driving force, thus limiting the development of fisheries in these areas.

[0005] To address the drive problem, some technologies are attempting to utilize non-electrical power sources to avoid the drawbacks of electric drives. Currently, solar and wind energy are the most commonly used. However, solar energy still requires conversion to electricity for power generation, which suffers from the same drawbacks as electric power. Furthermore, the amount of electricity converted is limited and may not necessarily meet the needs of fish pond oxygenation. Furthermore, fish pond oxygenation requires continuous operation, and prolonged periods of cloudy weather will inevitably significantly impact the pond.

[0006] Compared to solar energy, wind power is more versatile as a driving force. It doesn't suffer from power leakage and isn't affected by cloudy weather, making it a popular choice for aquaculture. For example, patent application number 201811495003.1, titled "Fish Pond Aerator," utilizes a wind wheel mounted on a column to drive a transmission belt, which in turn drives a stirring wheel through the transmission belt and stirring shaft. This stirring wheel stirs the surrounding water, allowing the water to come into contact with air and increase the amount of dissolved oxygen in the water.

[0007] Another example is patent application number 201610925519.X, titled "A Wind-Powered Fish Pond Oxygenation Device." The difference is that the fan blades in this patent drive the rotation of the driving shaft, which in turn drives the rotation of the driven shaft through gears, thereby driving the rotating water-absorbing blades to absorb water from the fish pond and spray it in all directions through a water spray pipe, allowing the water to come into contact with air and increase the amount of oxygen dissolved in the water.

[0008] However, after an in-depth study of the above-mentioned wind-powered oxygen enrichment equipment, the applicant found that the oxygen enrichment effect of this type of equipment is not very ideal. It can often only be used as an auxiliary oxygen enrichment equipment and still needs to be used in conjunction with other driving forces such as electricity. It is difficult to be used alone in a practical environment. Summary of the Invention

[0009] In view of the above problems, the present invention aims to solve some of the problems in the prior art, or at least alleviate these problems.

[0010] A wind-powered fish pond aerator, comprising:

[0011] The wind collecting device is located at a high position by a supporting structure; the wind collecting device includes a wind collector with a bell mouth and a square tube; the small end of the wind collector is connected to one end of the square tube; the square tube is connected to the circular air outlet;

[0012] The water droplet blowing device comprises a stepped water cylinder and an inclined trough; the stepped water cylinder is a cylindrical body, comprising an outlet end and an inlet end, wherein a plurality of water pools are formed sequentially from bottom to top via a water retaining plate; the inclined trough is provided on one side of the stepped water cylinder, and is provided with a connecting pool adapted to the water pool; the water surface of the connecting pool is in communication with the atmosphere; the connecting pool is provided on the side of the water pool and is connected to the water pool via a connecting hole;

[0013] A second bracket supports the water droplet blowing device so that the outlet end of the stepped water cylinder is higher than the inlet end thereof;

[0014] The air supply pipe has a first end connected to the circular air outlet; the second end is an air outlet pipe, which is immersed in the water body and inserted into the inlet end of the stepped water cylinder; the air outlet pipe faces the gap between the water retaining plate and the cylinder wall of the stepped water cylinder.

[0015] Furthermore, the air outlet pipe is close to the wall of the stepped water cylinder and remains parallel to the wall.

[0016] Preferably, the depth of the end of the air outlet pipe from the water surface is twice its diameter.

[0017] Furthermore, the wind collector includes a symmetrically arranged downwind wind collector and a headwind wind collector, which are respectively arranged at the two ends of the square tube; the circular air outlet is arranged in the middle of the square tube; a downwind outlet and a headwind outlet are provided in the square tube, which are located on both sides of the circular air outlet; a double-throw one-way valve adapted to the downwind outlet and the headwind outlet is provided between the downwind outlet and the headwind outlet, which is used to open the downwind outlet or the headwind outlet separately according to the direction of the wind.

[0018] Optionally, the upper portion of the double-throw one-way valve is bonded to the square tube via soft cowhide; the lower end wall of the square tube is an arc-shaped wall that matches the double-throw one-way valve.

[0019] Furthermore, the plurality of water pools are evenly distributed on the stepped water cylinder.

[0020] Furthermore, a baffle is provided at the outlet end of the stepped water cylinder.

[0021] Preferably, the water pool and the connecting pool have the same size and shape; the stepped water cylinder and the inclined chute have the same inclination angle.

[0022] The wind-powered fish pond aerator also includes a high-position tower for supporting the wind collector.

[0023] The wind-powered fish pond aerator also includes a first bracket for supporting the air supply pipe.

[0024] The present invention has the following beneficial effects:

[0025] 1. This application combines the wind collection device with the water droplet blowing device, which can work well even in a breeze and ensure that the water (especially the finer water droplets or water mist) is blown out from the stepped water cylinder at a high position, thereby fully contacting the air and increasing the amount of oxygen dissolved in the water. It does not consume any electricity and can work non-stop 24 hours a day, so that the oxygen content in the pond is always maintained at a sufficient state. Combined with the position and direction design of the air outlet pipe, it can not only generate more water waves, water clusters and water splashes, but also will not affect the generation of high-speed airflow above the pool. In addition, the oxygen enrichment efficiency is better in strong winds, and it is fully adaptable to all-weather automatic operation.

[0026] 2. Two symmetrically arranged wind collectors, combined with the double-throw one-way valve and square tube design, greatly improve the utilization rate of wind power, and can better cooperate with the water droplet blowing device to provide a stronger high-speed airflow, further improving the oxygenation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above structure of the present invention can be further illustrated by the following non-limiting embodiments given in the accompanying drawings.

[0028] Figure 1 It is the overall structural diagram of the present invention;

[0029] Figure 2 It is the front view of the present invention;

[0030] Figure 3 A semi-perspective view of the water droplet blowing device of the present invention;

[0031] Figure 4 It is a cross-sectional view of CC of the stepped water cylinder of the present invention;

[0032] Figure 5 A perspective view of a stepped water cylinder according to the present invention;

[0033] Figure 6 DD is a cross-sectional view of the chute of the present invention;

[0034] Figure 7 It is a left side view of the present invention;

[0035] Figure 8 It is an enlarged view of EE, FF, and GG of the wind collecting device of the present invention;

[0036] Figure 9 It is an enlarged view of AA and BB (including when not working and when working) of the water pool and the connecting pool of the present invention.

[0037] Among them: 1-downwind air collector; 2-upwind air collector; 3-square tube; 4-double-throw one-way valve; 5-upwind outlet; 6-downwind outlet; 7-circular outlet; 8-high-position tower; 9-air supply pipe; 10-first bracket; 11-second bracket; 12-stepped water cylinder; 13-water pool; 14-water retaining plate; 15-connecting pool; 16-air outlet pipe; 17-baffle; 18-chute; 19-connecting hole. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings. The embodiments of the present invention are only used to illustrate the present invention and are not intended to limit the present invention. Without departing from the technical concept of the present invention, various substitutions and modifications can be made based on common technical knowledge and customary means in the field, and all should be included in the scope of the present invention.

[0039] After conducting an in-depth study of existing pure wind-powered oxygenation equipment, the applicant discovered that the low oxygenation efficiency is closely related to its structural defects. With this type of device, wind power must drive the impeller or fan blades to rotate, and then, after passing through a series of mechanical structures, ultimately drive the stirring wheel or driven shaft to bring the water into contact with the air. However, relying solely on wind power to drive so many mechanical structures not only results in low wind utilization, but more importantly, a certain level of wind power must be reached to make the above-mentioned structures operational. In reality, this level of wind power is relatively rare, and most of the time, it is still dominated by a breeze. The entire device is unable to operate most of the time, or can only stir or spray the water to a relatively low height, in the form of a stream of water, making it impossible to fully contact the water with the air, let alone maintain a consistent and sufficient oxygen content in the pond. Therefore, the oxygenation efficiency is very low.

[0040] In order to maintain a good oxygen content in the pond for a long time, the designed solution needs to be able to operate the equipment well even in a breeze, and also ensure that the water falls at a high position so as to fully contact with the air, so as to greatly improve the oxygenation efficiency. The applicant designed the following solution.

[0041] like Figure 1 As shown in Figure 7, a wind-powered fish pond aerator comprises:

[0042] The wind collecting device is located at a high position through a supporting structure; the wind collecting device includes a wind collector with a bell mouth and a square tube 3, such as Figure 7 As shown; the small end of the wind collector is connected to one end of the square tube 3; the square tube 3 is connected to the circular air outlet 7, as shown Figure 8 As shown;

[0043] The water drop blowing device includes a stepped water cylinder 12 and a chute 18, as shown in FIG. Figure 3 The stepped water cylinder 12 is a cylinder, including an outlet end and an inlet end, wherein a plurality of water pools 13 are formed from bottom to top in sequence through a water retaining plate 14, as shown Figure 4 Said chute 18 is provided on one side of said stepped water cylinder 12, which is provided with a connecting pool 15 adapted to said pool 13, as Figure 6 The water surface of the connecting pool 15 is connected to the atmosphere; the connecting pool 15 is provided on the side of the pool 13 and is connected to the pool 13 through the connecting hole 19, as shown Figure 9 As shown;

[0044] The second bracket 11, such as Figure 1 As shown, the water droplet blowing device is supported so that the outlet end of the stepped water cylinder 12 is higher than its inlet end;

[0045] Air supply pipe 9, such as Figure 7As shown, the first end is connected to the circular air outlet 7; the second end is the air outlet pipe 16, which is immersed in the water body and inserted into the inlet end of the stepped water cylinder 12, as shown Figure 2 Or as shown in 4; the air outlet pipe 16 faces the gap between the water retaining plate 14 and the wall of the stepped water cylinder 12.

[0046] With the above structure, even a small breeze can be driven well and blown out from the outlet end of the stepped water cylinder 12, and fall into the water body after fully contacting with the air at a high position, thereby achieving a better oxygenation effect.

[0047] The water retaining plate 14 is adapted to the inner diameter of the stepped water cylinder 12 and has a certain gap with the cylinder wall after installation so that the ejected water can pass through.

[0048] The reason why the present application can achieve a good oxygenation effect even with a breeze is mainly related to the improvement of the device for increasing wind speed and high-position injection of water bodies.

[0049] First, a wind collecting device is used to collect and increase the wind speed.

[0050] Since the wind collector is a bell-shaped device, the wind collected at the large end of the wind collector can be transmitted to the square tube 3 through its small end, and then transmitted to the outlet pipe 16 through the air supply pipe 9. Assuming that the inner diameter of the large end of the trumpet-shaped wind collector is D and the inner diameter of the air supply pipe is d, the cross-sectional areas M1 and M2 of the two locations are:

[0051]

[0052] Assume that the wind speed at the large end of the wind collector is V1, and the wind speed at the circular air outlet is V2 (i.e., the wind speed at the outlet of the air outlet pipe 16). If the air is considered to be an approximately incompressible gas, then:

[0053] M1V1=M2V2

[0054] but

[0055] Assume that the inner diameter of the large end of the air collector D = 1.2m, the inner diameter of the air supply pipe d = 0.2m, and the breeze speed V1 at the air collector = 1m / s, then the wind speed at the outlet of the air outlet pipe 16 is In reality, because air is compressible, the actual wind speed V2 is approximately 30 m / s, equivalent to about 110 km / h. Therefore, the wind speed V2 at the outlet of the air duct 16 is much greater than the wind speed V1 at the large end of the air collector. Even with a slight breeze, a high-speed airflow can be obtained at the outlet of the air duct 16.

[0056] Secondly, the high-speed airflow generated by the air outlet pipe 16 is utilized to eject the water from the outlet end of the high-position stepped water cylinder 12 .

[0057] When the high-speed airflow is ejected from the outlet pipe 16, since the outlet pipe 16 penetrates into the water body, the high-speed airflow will first impact the water body, causing many waves, water masses and water splashes above the water surface. Figure 4 As shown, water waves, water masses and water sprays will be pushed upward by the high-speed airflow and move into the stepped water cylinder 12, and gradually be blown away and the number increases, and the individual volume decreases. The higher they go, the more their number increases, and the individual volume decreases. Finally, some of them are blown out from the outlet end of the stepped water cylinder 12, at which time, they have just become more tiny water droplets and water beads. The more tiny water droplets and water beads increase the area in contact with the air. In addition, they are blown out from a high position and eventually fall into the pond. Compared with a stream of water sprayed in the air and then falling, they can better promote the full contact of the water body with the air and increase the oxygen content in the pond.

[0058] The water droplets and water beads that are not blown out directly from the outlet end of the stepped water cylinder 12 will hit the cylinder wall or the water retaining plate 14, and slowly fill the water pool 13 below after falling. Figure 4 As shown, the two lowest pools S1 and S2 of the stepped water cylinder 12 are close to the water surface and are quickly filled by the rising water. The third pool S3 fills up later, and the fourth pool S4 may not be reached by the water. When water droplets hit the retaining plate 14 of pool S5 and fall, they slowly fill up pool S4. Similarly, the other higher pools fill up even later.

[0059] Since the water pool 13 is connected to the connecting pool 15 to form a connecting vessel, the water levels of the water pool 13 and the connecting pool 15 are the same when there is no high-speed airflow, which is the highest water level (such as Figure 9 When the outlet pipe 16 ejects high-speed airflow again, the air flow rate on the surface of the pool 13 is fast, and the air pressure becomes lower accordingly. Since the water surface of the connecting pool 15 is connected to the atmosphere, the air pressure is higher than that of the water surface of the pool 13, so that the water inside the connecting pool 15 is pressed into the connected pool 13 (as shown in FIG. Figure 9 The system (as shown in the operating state) causes the water in the pool 13 to overflow from the water retaining plate 14. The overflowing water is then dispersed by the high-speed airflow into droplets and beads, which move upward to the outlet of the stepped water cylinder 12. This generates more droplets and beads that exit the outlet of the stepped water cylinder 12 and ultimately fall into the pond. The design of the pool 13 and the connecting pool 15 allows the unblown water to remain at a higher position, making it easier for the high-speed airflow to blow it out of the outlet of the stepped water cylinder 12. This increases the total amount of water blown out from the higher position, thereby improving the oxygen content.

[0060] When the wind speed at the wind collector inlet is extremely low or stops, no air flows out of the air outlet pipe 16. At this point, no water droplets are blown out of the outlet end of the stepped water cylinder 12. Because there is no airflow over the surface of the water pools 13, the pressure at the liquid level increases, forcing the water into the connecting pools 15. As a result, the originally full water level in each pool 13 will drop slightly. However, any remaining water on the walls of the stepped water cylinder 12 and the water retaining plate 14 will quickly flow down to fill the pools 13, waiting to be blown out by the next high-speed airflow.

[0061] The high-speed airflow disperses the water in the pond into tiny droplets and beads, which then fall back down into the pond. This process significantly increases the contact area between the water and the air, allowing a large amount of oxygen to dissolve into the water. Furthermore, this aerator consumes no electricity and can operate 24 hours a day, ensuring a constant supply of oxygen in the pond.

[0062] The applicant's tests have revealed that the depth of the outlet pipe 16's end from the water surface is significantly correlated with the waves, clumps, and splashes generated on the water surface, as well as the maintenance of high-speed airflow over the pool 13. The applicant's repeated experiments have found that a depth of twice its diameter from the water surface can both generate more waves, clumps, and splashes on the water surface and maintain high-speed airflow over the pool 13, thereby ensuring the proper operation of the present application.

[0063] Since the wind speed varies at different times, when there is strong wind, if the direction of the air outlet pipe 16 is designed incorrectly (such as toward the water retaining plate 14 or the cylinder wall), the high-speed airflow generated will easily blow the water toward the above structure and then flow into the pool 13, but cannot directly blow it out of the water outlet end of the stepped water cylinder 12, wasting the strong wind in vain. In order to better utilize the strong wind to improve the oxygenation efficiency, such as Figure 4 As shown, the air outlet pipe 16 is close to the wall of the stepped water cylinder 12 and remains parallel to the wall, so that the water spray can be blown out directly under certain wind conditions, thereby improving the oxygenation efficiency and will not affect the operation in a breeze state.

[0064] like Figure 5 As shown, the plurality of water pools 13 are evenly distributed on the stepped water cylinder 12, which can be more suitable for conditions with different wind speeds.

[0065] like Figure 3 As shown in Figures 4 or 5, a baffle 17 is provided at the outlet end of the stepped water cylinder 12, which allows the blown water to collide with the baffle 17 to form smaller water droplets and water beads, so as to further increase the contact between the water and the air.

[0066] Preferably, the water pool 13 and the connecting pool 15 have the same size and shape; the stepped water cylinder 12 and the inclined chute 18 have the same inclination angle.

[0067] The wind collector can be one, and only needs to collect wind from one direction. But in order to make greater use of wind power, such as Figure 7 Or as shown in Figure 8, the wind collector includes a symmetrically arranged downwind wind collector 1 and a headwind wind collector 2, which are respectively arranged at the two ends of the square tube 3; the circular air outlet 7 is arranged in the middle of the square tube 3; a downwind outlet 6 and a headwind outlet 5 are provided in the square tube 3, which are located on both sides of the circular air outlet 7; a double-throw one-way valve 4 adapted to the downwind outlet 6 and the headwind outlet 5 is provided between the downwind outlet 6 and the headwind outlet 5, which is used to automatically open the downwind outlet 6 or the headwind outlet 5 separately according to the direction of the wind.

[0068] The downwind vent 6 and the headwind vent 5 in the square tube 3 are arranged opposite to the downwind air collector 1 and the headwind air collector 2, respectively. When the downwind air collector 1 collects wind, it uses the wind to blow the double-throw check valve 4 toward the headwind vent 5 and block it, so that the wind collected by the downwind air collector 1 enters the air supply pipe 9 through the circular air vent 7 and does not leak out of the headwind vent 5. The same applies to the headwind air collector 2 when collecting wind. The above structure can maximize the utilization of wind energy and improve the efficiency of wind utilization.

[0069] Preferably Figure 8 As shown, the upper part of the double-throw one-way valve 4 is bonded to the square tube 3 through soft cowhide; correspondingly, the lower end tube wall of the square tube 3 is an arc-shaped tube wall that is compatible with the double-throw one-way valve 4. The double-throw one-way valve 4 can rotate around the soft cowhide to open the downwind port or the upwind port 5 separately. The above structure can greatly reduce the friction between the double-throw one-way valve 4 and the square tube 3 when moving, and the arc-shaped tube wall design at the lower end of the square tube 3 can also cooperate well with the double-throw one-way valve 4 to prevent wind from leaking from the other end, thereby more effectively improving the utilization rate of wind power. Accordingly, the downwind port 6 and the upwind port 5 adopt the following Figure 8 The inclined state shown is to better cooperate with the double-throw one-way valve 4.

[0070] The double-throw one-way valve 4 is slightly larger than the downwind port 6 and the upwind port 5 so as to block the air ports.

[0071] Assuming that the direction of the wind is parallel or approximately parallel to the center lines of the two bell mouths, the wind blowing from the downwind wind collector 1 to the headwind wind collector 2 is called the downwind. Conversely, the wind blowing from the headwind wind collector 2 to the downwind wind collector 1 is called the headwind. When the downwind blows, due to the rotation of the double-throw one-way valve 4, the downwind port 6 is opened and the headwind port 5 is closed. The airflow enters the circular air port 7 and flows to the air supply pipe 9. When the headwind blows, due to the rotation of the double-throw one-way valve 4, the headwind port 5 is opened and the downwind port 6 is closed. The airflow enters the circular air port 7 and flows to the air supply pipe 9.

[0072] Of course, the upper portion of the double-throw one-way valve 4 can also be hinged to the upper end of the square tube 3, or other existing connection methods can be used to achieve its single-opening function.

[0073] If the wind is not in the direction of the wind or against the wind, but the wind direction has an angle α with the center line of the two bell mouths, the wind port 6 or the wind port 5 can still be opened, but the speed of the airflow out of the air outlet pipe 16 will be reduced. Of course, if α = 90°, the speed of the airflow out of the air outlet pipe is zero.

[0074] This application is mainly used for fish ponds. In order to place the wind collecting device at a high place to receive a larger wind force, its supporting structure can adopt a high tower 8, such as Figure 7 As shown, it is used to support the wind collector. The high-level tower 8 can be fixed on the foundation. In addition, it also includes a first bracket 10 to support the air supply pipe 9 to prevent the air supply pipe 9 from bending before it extends into the stepped water cylinder 12, resulting in the inability to transmit wind power.

[0075] In addition, the water droplet blowing device is preferably located at the center of the fish pond so that the oxygen in the water body is more uniform. A foundation can be set at the center of the fish pond, and a second bracket 11 is set thereon to support the water droplet blowing device.

[0076] The square tube 3 can also adopt a tube body of different shapes, and the shape of the double-throw one-way valve 4 can be adapted to the inner diameter of the square tube 3.

[0077] The downwind wind collector 1 and the upwind wind collector 2 are trumpet-shaped, have the same shape and size, and are installed on a high-position tower 8.

[0078] This application can also be used to increase oxygen in other environments, such as fish tanks and fish ponds. Simply install the water droplet blowing device inside the fish tank or fish pond and hang the wind collection device high up. Even in some high-rise buildings, simply hanging the wind collection device on a balcony or outside a window will allow for normal operation. It can also be used in the transportation of aquaculture products, such as installing a wind collection device on the top of a truck transporting aquatic products, and connecting it to the water droplet blowing device through an air supply pipe 9, using the wind force of the moving vehicle to oxygenate the water pool inside the vehicle compartment.

[0079] This application uses pure wind power as the driving force, and through the cooperation of the wind collecting device and the water droplet blowing device, this application can operate effectively in breeze or strong wind conditions, and can make the water fall at a high position to fully contact with the air, greatly improving the oxygenation efficiency.

[0080] The fixed connection not specifically mentioned above may be a connection method such as riveting, welding, bolt connection, etc., and the movable connection may be a connection method such as hinged connection.

Claims

1. A wind-powered fish pond aerator, characterized in that: include: An air collecting device is positioned at a high position by a supporting structure; the air collecting device comprises an air collector with a bell mouth and a square tube (3); the small end of the air collector is connected to one end of the square tube (3); the square tube (3) is connected to a circular air outlet (7); A water drop blowing device comprises a stepped water cylinder (12) and an inclined trough (18); the stepped water cylinder (12) is a cylindrical body, comprising an outlet end and an inlet end, wherein a plurality of water pools (13) are formed in sequence from bottom to top via a water retaining plate (14); the inclined trough (18) is provided on one side of the stepped water cylinder (12), wherein a connecting pool (15) adapted to the water pool (13) is provided; the water surface of the connecting pool (15) is communicated with the atmosphere; the connecting pool (15) is provided on the side of the water pool (13) and is communicated with the water pool (13) via a communicating hole (19); A second bracket (11) supports the water droplet blowing device so that the outlet end of the stepped water cylinder (12) is higher than the inlet end thereof; An air supply pipe (9) has a first end connected to the circular air outlet (7); a second end is an air outlet pipe (16), which is immersed in the water body and inserted into the inlet end of the stepped water cylinder (12); the air outlet pipe (16) faces the gap between the water retaining plate (14) and the cylinder wall of the stepped water cylinder (12).

2. The wind-powered fish pond aerator according to claim 1, characterized in that: The air outlet pipe (16) is close to the wall of the stepped water cylinder (12) and remains parallel to the wall.

3. The wind-powered fish pond aerator according to claim 2, characterized in that: The depth of the end of the air outlet pipe (16) from the water surface is twice its diameter.

4. The wind-powered fish pond aerator according to claim 1, characterized in that: The wind collector comprises a symmetrically arranged downwind wind collector (1) and a headwind wind collector (2), which are respectively arranged at the two ends of the square tube (3); the circular air outlet (7) is arranged in the middle of the square tube (3); a downwind outlet (6) and a headwind outlet (5) are provided in the square tube (3), which are located on both sides of the circular air outlet (7); a double-throw one-way valve (4) adapted thereto is provided between the downwind outlet (6) and the headwind outlet (5), for opening the downwind outlet (6) or the headwind outlet (5) separately according to the direction of the wind.

5. The wind-powered fish pond aerator according to claim 4, characterized in that: The upper portion of the double-throw one-way valve (4) is bonded to the square tube (3) via soft cowhide; the lower end wall of the square tube (3) is an arc-shaped wall adapted to the double-throw one-way valve (4).

6. The wind-powered fish pond aerator according to claim 1, characterized in that: The plurality of water pools (13) are evenly distributed on the stepped water cylinder (12).

7. The wind-powered fish pond aerator according to claim 1, characterized in that: The outlet end of the stepped water cylinder (12) is provided with a baffle (17).

8. The wind-powered fish pond aerator according to claim 1, characterized in that: The water pool (13) and the connecting pool (15) have the same size and shape; the stepped water cylinder (12) and the inclined chute (18) have the same inclination angle.

9. The wind-powered fish pond aerator according to claim 1, characterized in that: It also includes a high-level tower (8) for supporting the wind collector.

10. The wind-powered fish pond aerator according to claim 1, characterized in that: It also includes a first bracket (10) for supporting the air supply pipe (9).

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