Efficient aerator impeller and aerator adopting same

Abstract

The utility model discloses an efficient aerator impeller which comprises an impeller body. A positioning hole is formed in the center of the wheel body, and a group of mounting holes are correspondingly formed in the periphery of the positioning hole; a group of blades are arranged on the peripheral wall of the wheel body at intervals in the circumferential direction; each blade comprises a blade main body which is obliquely arranged relative to the wheel body, an outer flow guide flange which is arranged at the outer edge of the blade main body and an upper flow guide flange which is arranged at the upper edge of the blade main body; the outer flow guide turnup and the upper flow guide turnup are turned towards the water stirring direction of the blade; a group of outer notch grooves are formed in the outer flow guide turned-over edge at intervals, and a group of upper notch grooves are formed in the upper flow guide turned-over edge at intervals. The efficient aerator impeller is provided with the blades with specific structures, so that water stirring resistance can be reduced when the efficient aerator impeller is used, water flow is scattered to be in full contact with air, the aeration efficiency is improved, and the energy consumption of an aerator is reduced. Correspondingly, the utility model further provides an aerator adopting the impeller.

Description

Technical Field

[0001] The utility model relates to the technical field of aerators, in particular to a high-efficiency aerator impeller and an aerator using the impeller. Background Art

[0002] As an important equipment in aquaculture, the aerator is mainly used to increase the dissolved oxygen content of the aquaculture water to prevent the aquaculture water from being hypoxic. It can also inhibit the growth of anaerobic bacteria in the water to prevent the aquaculture water from deteriorating and threatening the living environment of fish and shrimp. The aerator mainly includes a float, a motor installed on the float, and an impeller connected to the motor. A part of the impeller is in the water. When in use, the impeller is driven by the motor to rotate, thereby splashing water, increasing the contact area between water and air, and increasing the oxygen content of the water.

[0003] As an important part of the aerator, the impeller is usually composed of a wheel body and blades. The traditional impeller adopts a split structure, which is more complicated to assemble. There may be certain errors during installation, which will affect the subsequent use; and the overall stability of the assembled impeller is low, and it is easy to be damaged during high-speed operation. In addition, the traditional impeller blades are mostly solid structures, which make loud noises when stirring the water, and will be subject to greater water resistance, requiring the motor to provide a larger power drive energy, thereby increasing the energy consumption of the aerator, which is not conducive to energy saving and efficiency improvement. Utility Model Content

[0004] The present application provides a high-efficiency aerator impeller to overcome the problems existing in the prior art. The high-efficiency aerator impeller of the present application is equipped with blades with a specific structure, which can reduce water resistance when in use, and break up the water flow so that it is in full contact with the air, thereby improving the oxygenation efficiency and reducing the energy consumption of the aerator; in addition, the impeller is integrally formed, which is convenient to assemble, and the overall stability of the aerator after assembly is good and the reliability of use is high. Correspondingly, the present application also provides an aerator using the impeller.

[0005] For the impeller, the technical solution of this application is:

[0006] A high-efficiency aerator impeller comprises a wheel body; a positioning hole is provided at the center of the wheel body, and a group of mounting holes are correspondingly provided at the periphery of the positioning hole; a group of blades are circumferentially spaced on the outer peripheral wall of the wheel body; the blades comprise a blade body inclined relative to the wheel body, an outer guide flange provided at the outer edge of the blade body, and an upper guide flange provided at the upper edge of the blade body; the outer guide flange and the upper guide flange are both folded toward the water-displacing direction of the blade; a group of outer notch grooves are spaced on the outer guide flange, and a group of upper notch grooves are spaced on the upper guide flange.

[0007] Compared with the prior art, the high-efficiency aerator impeller of the present application includes a wheel body and blades, wherein a guide flange folded toward the water-displacing direction of the blade is provided at the edge of the blade, which can guide the water flow when in use, increase the water displacement amount, reduce the water displacement resistance, and reduce the energy consumption of the aerator; and a notch groove is also provided on the guide flange, which can divert the water flow displaced by the blade and change the direction of the water splash so that the water splash can spread to the surroundings and fully contact with the air, thereby improving the oxygenation efficiency.

[0008] As an optimization, in the aforementioned high-efficiency aerator impeller, the blade body and the outer guide flange are both gradually widened from bottom to top. This can increase the amount of water displacement, and the upper end of the blade body is wider, so the size of the upper guide flange will be relatively larger, and the number of upper notch grooves that can be set will be greater, making it easier to break up the water flow, thereby achieving a better oxygenation effect.

[0009] Furthermore, the size of the outer notch groove on the outer guide flange increases from bottom to top. At this time, the drainage flow of the outer notch groove increases from bottom to top, so that water flows with different surging forces can appear at the edge of the blade, which is more conducive to the outward diffusion of the water flow.

[0010] As an optimization, in the aforementioned high-efficiency aerator impeller, the wheel body includes an inner wheel body and an outer wheel body arranged coaxially; the lower ends of the inner wheel body and the outer wheel body are connected as a whole, and a group of reinforcing plates are connected between the outer wall of the inner wheel body and the inner wall of the outer wheel body; the inner edge of the blade body is connected to the outer wall of the outer wheel body; the positioning hole and the mounting hole are arranged on the mounting plate at the top of the inner wheel body. In this case, the wheel body structure is simple and easy to manufacture.

[0011] Furthermore, the angle α between the blade body and the outer wall of the outer wheel body can be 135° to 155°. At this time, the blade body has a greater driving effect on the water body, and the surge effect is better and it is easy to throw the water splashes around.

[0012] Furthermore, the outer wheel body is a rotating body with a large opening at the upper end and a small opening at the lower end; the inner wheel body is a hollow column; the top of the inner wheel body is lower than the top of the outer wheel body. The inner and outer wheel bodies adopt the above special structural design, which can save manufacturing consumables while ensuring strength, and is conducive to controlling manufacturing costs.

[0013] As an optimization, in the aforementioned high-efficiency aerator impeller, a group of balancing holes evenly distributed along the circumference are opened at the bottom of the outer wheel body. The balancing holes can be used to balance the axial force caused by the pressure difference and improve the reliability of the aerator.

[0014] As an optimization, in the aforementioned high-efficiency aerator impeller, a group of reinforcing ribs are evenly distributed along the circumference on the inner wall of the outer wheel body, thereby improving the overall strength of the wheel body.

[0015] As an optimization, the impeller of the aforementioned high-efficiency aerator can be injection molded from polypropylene material. Polypropylene material has good heat resistance, stress cracking resistance and mechanical strength; it is non-toxic and tasteless, and has good environmental performance. The impeller is made of polypropylene material, which ensures structural strength while having low material costs; in addition, the impeller is integrally molded by injection molding, which facilitates the installation and positioning between the impeller and the motor, with high installation accuracy, and the overall structure of the aerator after assembly is relatively stable, which is conducive to subsequent long-term and stable use.

[0016] For the aerator, the technical solution of this application is:

[0017] The aerator comprises a float, a motor and an impeller; the impeller is fixed on the motor; the float is connected to the motor through a support rod; the impeller adopts the aforementioned high-efficiency aerator impeller of the present application.

[0018] Compared with the prior art, the impeller equipped with the aerator of the present application includes a wheel body and blades; wherein, a guide flange folded toward the water-displacing direction of the blade is provided at the edge of the blade, which can guide the water flow, increase the water displacement amount, reduce the water displacement resistance, and reduce the energy consumption of the aerator; and a notch groove is also provided on the guide flange, which can divert the water flow displaced by the blade and change the direction of the water splash so that the water splash can spread to the surroundings and fully contact with the air, thereby improving the oxygenation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the high-efficiency aerator impeller of the present application;

[0020] Figure 2 It is a schematic diagram of the bottom structure of the high-efficiency aerator impeller of the present application;

[0021] Figure 3 yes Figure 1 The front view of the high-efficiency aerator impeller;

[0022] Figure 4 yes Figure 1 A top view of the high-efficiency aerator impeller in FIG.

[0023] Figure 5 It is a structural schematic diagram of the aerator in this application.

[0024] The markings in the accompanying drawings are: 1-wheel body, 11-inner wheel body, 111-mounting plate, 12-outer wheel body, 13-reinforcement plate, 14-reinforcement rib, 101-positioning hole, 102-mounting hole, 103-balancing hole, 104-U-shaped groove; 2-blade, 21-blade body, 22-outer guide flange, 221-outer notch groove, 23-upper guide flange, 231-upper notch groove; 3-floating body; 4-motor; 5-support rod. DETAILED DESCRIPTION

[0025] The present application is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present application.

[0026] In order to overcome the problems of complex assembly, poor installation stability, large water displacement resistance, etc. existing in traditional aerator impellers, the present application provides a high-efficiency aerator impeller.

[0027] See also Figure 1 The high-efficiency aerator impeller of the present application includes a wheel body 1; a positioning hole 101 is provided in the center of the wheel body 1, and a group of mounting holes 102 are correspondingly provided on the periphery of the positioning hole 101; a group of blades 2 are circumferentially spaced on the outer peripheral wall of the wheel body 1; the blade 2 includes a blade body 21 inclined relative to the wheel body 1, and an outer guide flange 22 provided at the outer edge of the blade body 21 and an upper guide flange 23 provided at the upper edge of the blade body 21; the outer guide flange 22 and the upper guide flange 23 are both folded toward the water-displacing direction of the blade 2; a group of outer notch grooves 221 are spaced apart on the outer guide flange 22, and a group of upper notch grooves 231 are spaced apart on the upper guide flange 23.

[0028] Example (see Figure 1 to Figure 4 ):

[0029] In the present embodiment, the blade body 21 and the outer guide flange 22 are both in a shape that gradually widens from bottom to top. In this way, the amount of water displacement can be increased, and if the upper end of the blade body 21 is wider, then the size of the upper guide flange 23 will also be relatively large, and the number of upper notch grooves 231 that can be set will be more, so that it is easier to break up the water flow, thereby achieving a better oxygenation effect. Furthermore, the size of the outer notch groove 221 on the outer guide flange 22 increases sequentially from bottom to top (that is, the size of the outer notch groove 221 on the upper side is larger than the size of the outer notch groove 221 on the lower side). At this time, the drainage flow of the outer notch groove 221 increases from bottom to top, so that water flows with different surging forces can appear at the edge position of the blade 2, which is more conducive to the outward diffusion of the water flow. In this application, "up" and "down" refer to the state when the impeller is in use (such as Figure 5 shown).

[0030] In this embodiment, five blades 2 are evenly spaced on the outer peripheral wall of the wheel body 1. The wheel body 1 includes an inner wheel body 11 and an outer wheel body 12 coaxially arranged; the lower ends of the inner wheel body 11 and the outer wheel body 12 are connected as a whole; the inner edge of the blade body 21 is connected to the outer wall of the outer wheel body 12; between the outer wall of the inner wheel body 11 and the inner wall of the outer wheel body 12, a reinforcing plate 13 is respectively provided corresponding to the blades 5; the positioning hole 101 is provided in the center of the mounting plate 111 at the top of the inner wheel body 11; on the mounting plate 111, located on the periphery of the positioning hole 101, four mounting holes 102 are evenly spaced along the circumferential direction. When the motor 4 is assembled with the impeller, the rotating shaft of the motor 4 passes through the positioning hole 101, and the motor 4 is fixed to the mounting plate 111 by bolts.

[0031] See also Figure 3 In this embodiment, the angle α between the blade body 21 and the outer wall of the outer wheel body 12 is 138°. At this time, the blade body 21 has a greater driving effect on the water body, the surge effect is better, and it is easy to throw the water splashes around.

[0032] In this embodiment, the outer wheel body 12 is a rotating body with a large opening at the upper end and a small opening at the lower end; the inner wheel body 11 is in the shape of a hollow column; the top of the inner wheel body 11 is lower than the top of the outer wheel body 12. The inner and outer wheel bodies adopt the above-mentioned special structural design, which can save manufacturing consumables while ensuring strength, and is conducive to controlling manufacturing costs. Furthermore, the upper part of the outer wheel body 12, located between two adjacent blades 2, is provided with a U-shaped groove 104; a U-shaped block is formed between two adjacent U-shaped grooves 104; the inner edge of the upper end of the blade body 21 is fixed to the outer wall of the U-shaped block; the upper end of the reinforcement block 13 is fixed to the inner wall of the U-shaped block.

[0033] In this embodiment, five balancing holes 103 evenly distributed along the circumferential direction are opened at the bottom of the outer wheel body 12 (one balancing hole 103 is provided between each of two adjacent reinforcing plates 13) for balancing the axial force caused by the pressure difference, thereby improving the reliability of the aerator.

[0034] In this embodiment, a reinforcing rib 14 is provided on the inner wall of the U-shaped block, located on one side of the reinforcing plate 13. Thus, the overall strength of the wheel body 1 can be improved.

[0035] In this embodiment, the impeller of the high-efficiency aerator is injection molded by polypropylene material. The impeller is made of polypropylene material, which ensures structural strength while having low material cost.

[0036] As a specific application of the supercharger impeller of this embodiment:

[0037] join Figure 5, an aerator, comprising a float 3, a motor 4 and an impeller; the impeller is fixed on the motor 4; the float 3 is connected to the motor 4 through a support rod 5; the impeller adopts the aforementioned high-efficiency aerator impeller of the present application.

[0038] The above general description of the utility model involved in this application and the description of its specific implementation methods should not be understood as limiting the technical solutions of the utility model. Based on the disclosure of this application, those skilled in the art can, without violating the constituent elements of the utility model involved, add, reduce or combine the disclosed technical features in the above general description or / and the specific implementation methods (including examples) to form other technical solutions within the protection scope of this application.

Claims

1. A high-efficiency aerator impeller, comprising a wheel body (1); a positioning hole (101) is provided at the center of the wheel body (1), and a group of mounting holes (102) are provided on the periphery of the positioning hole (101); a group of blades (2) are provided on the outer peripheral wall of the wheel body (1) at intervals in the circumferential direction; the characteristics are: The blade (2) comprises a blade body (21) arranged obliquely relative to the wheel body (1), an outer flow-guiding flange (22) arranged at the outer edge of the blade body (21), and an upper flow-guiding flange (23) arranged at the upper edge of the blade body (21); the outer flow-guiding flange (22) and the upper flow-guiding flange (23) are both folded toward the water-displacing direction of the blade (2); a group of outer notched grooves (221) are arranged at intervals on the outer flow-guiding flange (22), and a group of upper notched grooves (231) are arranged at intervals on the upper flow-guiding flange (23).

2. The high-efficiency aerator impeller according to claim 1, characterized in that: The blade body (21) and the outer flow-guiding flange (22) are both in a shape that gradually widens from bottom to top.

3. The high-efficiency aerator impeller according to claim 2, characterized in that: The size of the outer notch groove (221) on the outer flow-guiding flange (22) increases sequentially from bottom to top.

4. The high-efficiency aerator impeller according to claim 1, characterized in that: The wheel body (1) comprises an inner wheel body (11) and an outer wheel body (12) which are coaxially arranged; the lower ends of the inner wheel body (11) and the outer wheel body (12) are connected as a whole, and a group of reinforcing plates (13) are spaced apart and connected between the outer wall of the inner wheel body (11) and the inner wall of the outer wheel body (12); the inner edge of the blade body (21) is fixed to the outer wall of the outer wheel body (12); the positioning hole (101) and the mounting hole (102) are arranged on the mounting plate (111) at the top of the inner wheel body (11).

5. The high-efficiency aerator impeller according to claim 4, characterized in that: The included angle α between the blade body (21) and the outer wall of the outer wheel body (12) is 135° to 155°.

6. The high-efficiency aerator impeller according to claim 4, characterized in that: The outer wheel body (12) is a rotating body with a large opening at the upper end and a small opening at the lower end; the inner wheel body (11) is in the shape of a hollow column; the top of the inner wheel body (11) is lower than the top of the outer wheel body (12).

7. The high-efficiency aerator impeller according to claim 6, characterized in that: A group of balancing holes (103) evenly distributed along the circumferential direction are formed at the bottom of the outer wheel body (12).

8. The high-efficiency aerator impeller according to claim 5, characterized in that: A group of reinforcing ribs (14) are evenly distributed along the circumferential direction on the inner wall of the outer wheel body (12).

9. The high-efficiency aerator impeller according to claim 1, characterized in that: It is injection molded from polypropylene material.

10. An aerator, comprising a float (3), a motor (4) and an impeller; the impeller is fixed to the motor (4); the float (3) is connected to the motor (4) via a support rod (5); characterized in that: The impeller adopts the high-efficiency aerator impeller described in claim 1.

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