Novel oxygenation device for aquaculture pond

Abstract

The utility model discloses a novel aquaculture pond oxygenation device which comprises an annular floating block and an impeller, the impeller is located in the center of the annular floating block and can rotate, the impeller comprises a plurality of centrifugal blades at the bottom and a plurality of flapping pieces at the top, the centrifugal blades extend to the position below the annular floating block, and the flapping pieces are located in the annular floating block. The aerator has the beneficial effects that a synchronous bevel gear and a transmission bevel gear are matched to enable a rotating shaft and a rotating drum to keep synchronous reverse rotation under the driving of a motor, so that when an impeller executes conventional aeration operation, a flow deflector can guide water on the water surface to a flapping sheet which rotates reversely; the water body is flapped into a water drop or water mist form, the contact area of the water body and air is greatly expanded, meanwhile, the contact time of the water body and the air is prolonged, the oxygen dissolving capacity of the water surface is remarkably enhanced, and then the overall oxygenation effect is comprehensively improved.

Description

Technical Field

[0001] This utility model relates to the field of oxygenation device technology, and in particular to a novel oxygenation device for aquaculture ponds. Background Technology

[0002] In modern aquaculture, sufficient dissolved oxygen can promote the metabolism of farmed organisms, improve feed utilization, enhance their immunity, reduce the occurrence of diseases, and thus improve the yield and quality of aquaculture.

[0003] Impeller aerators are widely used in aquaculture due to their relatively simple structure, low cost, and ease of operation. Their working principle involves a motor driving an impeller to rotate, creating vertical and horizontal water flow, thus introducing oxygen from the air into the water and improving dissolved oxygen levels to some extent. However, in practical applications, impeller aerators have significant limitations in enhancing surface dissolved oxygen in high-temperature environments. During operation, they rely on wave action to increase dissolved oxygen in the surface water; the impeller rotation creates waves, increasing the contact area between the water and air. However, this method has significant limitations. The limited range and intensity of the waves, coupled with the short contact time between the water and air, restricts the increase in dissolved oxygen per unit time, resulting in low dissolved oxygen efficiency. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems of the above-mentioned novel aeration device for aquaculture ponds, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel aeration device for aquaculture ponds, comprising:

[0007] Circular float;

[0008] The impeller, located at the center of the annular float, is rotatable and includes multiple centrifugal blades at the bottom and multiple beater blades at the top.

[0009] Several guide vanes are obliquely distributed around the outside of the impeller and can rotate around the center of the impeller, with the rotation direction opposite to that of the impeller. The guide vanes are arc-shaped, and their concave surfaces face their rotation direction. The top of the concave side of the guide vane is provided with a bent part, the end of which faces the rotating impact path of the beater. The bottom of the bent part and the concave surface of the guide vane form a water guiding channel.

[0010] As a preferred embodiment of the novel aeration device for aquaculture ponds described in this utility model, the bottom of the bent portion is provided with an arc-shaped guide surface along the axial direction, and the concave surface of the arc-shaped guide surface faces the concave surface of the guide vane.

[0011] As a preferred embodiment of the novel aeration device for aquaculture ponds described in this utility model, the bending angle of the bending part is in the range of 60 to 90°.

[0012] As a preferred embodiment of the novel aeration device for aquaculture ponds described in this utility model, the annular float is provided with a support frame, a motor is installed on the support frame, and a rotating shaft is provided on the output shaft of the motor, which rotates through the support frame and is connected to the impeller key.

[0013] As a preferred embodiment of the novel aeration device for aquaculture ponds described in this utility model, a rotating cylinder is sleeved on the rotating shaft, the rotating cylinder forms a rotating pair with the rotating shaft through a bearing, and the outer wall of the rotating cylinder is connected to each guide vane through multiple support rods.

[0014] As a preferred embodiment of the novel aeration device for aquaculture ponds described in this utility model, the rotating shaft and the rotating drum are both equipped with synchronous bevel gears, and the tooth surfaces of the two synchronous bevel gears are opposite to each other. A transmission bevel gear is rotatably mounted on the upright frame, and the transmission bevel gear meshes with both synchronous bevel gears.

[0015] The beneficial effects of this invention are as follows: The synchronized bevel gears and transmission bevel gears work together to ensure that the rotating shaft and drum rotate synchronously in opposite directions under the drive of the motor. This allows the guide vanes to direct water from the surface to the counter-rotating agitator vanes during conventional aeration operations. This agitates the water into droplets or mist, significantly increasing the contact area between the water and air, and extending the contact time. This significantly enhances the dissolved oxygen capacity of the water surface, thereby comprehensively improving the overall aeration effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the bottom structure of the impeller in this utility model.

[0019] Figure 3 This is a schematic diagram of the flow guide plate in this utility model.

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] Figure descriptions: 1. Annular float; 2. Impeller; 21. Centrifugal blade; 22. Vent hole; 23. Beating plate; 3. Guide plate; 31. Bending section; 32. Arc-shaped guide surface; 4. Frame; 5. Motor; 51. Shaft; 6. Rotary drum; 61. Support rod; 7. Synchronous bevel gear; 8. Transmission bevel gear. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Reference Figures 1-4 This invention provides a novel aeration device for aquaculture ponds, comprising an annular float 1, a support frame 4 mounted on the annular float 1, a motor 5 mounted on the support frame 4, a rotating shaft 51 rotatably penetrating the support frame 4 on the output shaft of the motor 5, an impeller 2 keyed to the bottom end of the rotating shaft 51, a rotating cylinder 6 sleeved on the rotating shaft 51, the rotating cylinder 6 forming a rotating pair with the rotating shaft 51 through bearings, multiple guide vanes 3 connected to the outer wall of the rotating cylinder 6 through multiple support rods 61, synchronous bevel gears 7 mounted on both the rotating shaft 51 and the rotating cylinder 6, with the tooth surfaces of the two synchronous bevel gears 7 facing each other, and a transmission bevel gear 8 rotatably mounted on the support frame 4, the transmission bevel gear 8 meshing with both synchronous bevel gears 7, the synchronous bevel gears 7 and the transmission bevel gear 8 working together to enable the rotating shaft 51 and the rotating cylinder 6 to rotate synchronously in opposite directions under the drive of the motor 5.

[0027] The impeller 2 is located at the center of the annular float 1 and is rotatable. It includes multiple centrifugal blades 21 at the bottom and multiple beaters 23 at the top. The centrifugal blades 21 extend below the annular float 1 to facilitate their insertion into the water body, and multiple air holes 22 are provided on their surfaces to promote gas-liquid mixing and form bubbles to increase dissolved oxygen. The beaters 23 are located inside the annular float 1 and exposed to the air. When the beaters 23 rotate, they form a striking path relative to the water body.

[0028] like Figures 2-4 As shown, several guide vanes 3 are obliquely distributed around the outside of the impeller 2 and can rotate around the center of the impeller 2, with the rotation direction opposite to that of the impeller 2. The guide vanes 3 are arc-shaped, and their concave surfaces face their rotation direction. The bottom of the guide vanes 3 extends into the water body. During rotation, the water in the water body is guided upward through its oblique arc-shaped concave surface. The top of the concave side of the guide vane 3 is provided with a bending part 31, and the bending angle of the bending part 31 is in the range of 60 to 90°. Its end faces the impact path of the striking plate 23. The bottom of the bending part 31 is axially arranged... There is an arc-shaped guide surface 32, and the concave surface of the arc-shaped guide surface 32 faces the concave surface of the guide plate 3. The water guided by the rotation of the guide plate 3 will extend upward until it touches the top arc-shaped guide surface 32. The concave surface of the arc-shaped guide surface 32 can increase the space for accommodating water and further limit the water, so that it can be guided along the bending part 31 to the striking path of the striking plate 23, so that the water is struck into the state of water droplets or water mist and then spreads in all directions. The water droplets can fully contact the air during the diffusion process, and can improve the dissolved oxygen capacity of the water surface after falling into the water.

[0029] Additionally, it should be noted that in some aquaculture ponds, oxygenation needs can be met simply by the low-speed rotation of the centrifugal blades 21 at the bottom of the impeller 2 in a normal temperature environment. However, in some cases, such as in hot weather, the increased water temperature increases the kinetic energy of oxygen molecules, making them more likely to escape from the water into the air, especially in areas with less surface water disturbance. In such cases, the oxygenation effect of the centrifugal blades 21 alone is not ideal. Operators can adjust the output power of the motor 5 to increase the rotation speed of the impeller 2 and the guide vanes 3, thereby increasing the dissolved oxygen capacity of the water surface by striking the water, thus meeting the oxygenation needs of the aquaculture pond.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel oxygenation device for aquaculture ponds, characterized by, The utility model relates to a water purifier, including: Annular float (1); Impeller (2) is located in the central position of annular float (1), and can rotate, and it includes a plurality of centrifugal blades (21) of bottom and a plurality of flappers (23) of top; Several guide vanes (3) are all inclinedly distributed around the outside of impeller (2) and can rotate with the center of impeller (2) as the center, and the rotating direction is opposite to impeller (2), the guide vane (3) is arc shape, the top of the concave side of guide vane (3) is equipped with bending part (31), and the end portion is towards the hitting path of flapper (23), and the bottom of bending part (31) and the concave surface between guide vane (3) form the water guide channel.

2. The novel oxygenation device for aquaculture ponds according to claim 1, characterized in that: The bottom of bending part (31) is provided with arc-shaped guide surface (32) along the axial direction, and the concave surface of arc-shaped guide surface (32) faces the concave surface of guide vane (3).

3. The novel oxygenation device for aquaculture pond according to claim 2, characterized in that: The bending angle range of bending part (31) is 60~90°.

4. The novel oxygenation device for aquaculture ponds according to claim 1, characterized in that: Annular float (1) is provided with stand (4), motor (5) is installed on stand (4), and the output shaft of motor (5) is provided with rotating shaft (51) that rotates through stand (4) and is keyed to impeller (2).

5. The novel oxygenation device for aquaculture ponds according to claim 4, characterized in that: Rotary drum (6) is sleeved on rotating shaft (51), and rotary drum (6) forms rotary pair with rotating shaft (51) through bearing, and the outer wall of rotary drum (6) is connected with each guide vane (3) through a plurality of support rods (61).

6. The novel oxygenation device for aquaculture ponds according to claim 5, characterized in that: Rotating shaft (51) and rotary drum (6) are all provided with synchronous bevel gears (7), and the tooth surfaces of two synchronous bevel gears (7) are opposite, transmission bevel gear (8) is rotatably arranged on stand (4), and transmission bevel gear (8) is engaged with two synchronous bevel gears (7).

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