Wide compound blade efficient axial flow impeller

Abstract

The utility model discloses a wide compound blade efficient axial flow impeller which comprises a hub, a plurality of main wings and a plurality of auxiliary wings. The ailerons are fixed below the main wing in a one-to-one correspondence manner through connecting plates, the main wing covers partial areas of the ailerons on a top view projection, and a gap for a medium to pass through is formed between the main wing and the ailerons. The utility model relates to the technical field of stirring blades, liquid passes through a main wing and then is in contact with an aileron, the aileron rectifies the liquid, and the combination of the main wing and the aileron enhances the downward thrust to the liquid flow, so that higher discharge flow and discharge flow velocity are generated. The continuous bending shape design of the main wing can better adapt to the dynamic characteristics of fluid while the structural strength is kept. The bent shape of the aileron rectifies the liquid behind the main wing, and the V-shaped tip can enable the fluid to be better separated at the lower section of the aileron, so that the fluid resistance is reduced, and the operation stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stirring vane, concretely to a wide complex leaf high -efficient axial flow impeller. BACKGROUND

[0002] In the existing fluid stirring technology, the stirring vane is usually in the form of a propeller, which can promote the flow and mixing of the fluid to a certain extent. However, in practical applications, this traditional propeller-shaped stirring vane has certain limitations. First, the stirring efficiency of a single-blade stirrer is relatively low, because a single blade is difficult to form effective fluid dynamics during stirring, resulting in poor mixing of the fluid. Secondly, when using this blade to mix liquid, the tail section of the blade stirs the liquid, which can easily cause turbulent flow. The generation of turbulent flow not only affects the uniform mixing of the liquid, but also reduces the downward thrust of the blade, thereby reducing the discharge flow and discharge velocity of the blade.

[0003] In addition, the traditional propeller-shaped blade often causes vortex flow around the blade when rotating at high speed due to its structural limitations. These vortex flows consume energy. Therefore, how to maintain stirring efficiency while reducing vortex flow and turbulent flow and improving the discharge flow and discharge velocity of the blade has become a problem to be solved. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a wide complex leaf high -efficient axial flow impeller, which solves the problem that the existing stirring vane is prone to vortex flow and turbulent flow, which reduces the discharge flow and discharge velocity of the blade.

[0005] To achieve the above-mentioned purpose, the utility model realizes the following technical scheme: a wide complex leaf high -efficient axial flow impeller, comprising:

[0006] a hub;

[0007] a plurality of main wings, each main wing being fixed around the hub in a circumferential direction through a root vane connecting plate; and

[0008] a plurality of auxiliary wings, each auxiliary wing being fixed below the main wing through a connecting plate one by one;

[0009] Wherein, the main wing covers part of the area of the auxiliary wing in the top view projection.

[0010] Preferably, the main wing comprises a main wing root, a main wing tip and a main wing leading edge and a main wing trailing edge connecting between the main wing root and the main wing tip; the auxiliary wing comprises an auxiliary wing root, an auxiliary wing tip and an auxiliary wing leading edge and an auxiliary wing trailing edge connecting between the auxiliary wing root and the auxiliary wing tip;

[0011] The top of the main wing blade and the root of the auxiliary wing blade are fixed on a side wall surface of the connecting plate, and the top of the auxiliary wing blade is arranged towards the hub.

[0012] Preferably, a gap is formed between the main wing and the auxiliary wing for the medium to pass through.

[0013] Preferably, the main wing is continuously bent in the direction from the leading edge of the main wing to the trailing edge of the main wing to form a leading section, a middle section and a tail section of the main wing in sequence, and the bending of the leading section, the middle section and the tail section of the main wing is continuous bending in one direction.

[0014] Preferably, an angle α is formed between the leading section and the middle section of the main wing, and 150°<α<170°.

[0015] Preferably, an angle β is formed between the middle section and the tail section of the main wing, and 150°<β<170°.

[0016] Preferably, the auxiliary wing is continuously bent in the direction from the leading edge of the auxiliary wing to the trailing edge of the auxiliary wing to form an upper section and a lower section of the auxiliary wing in sequence.

[0017] Preferably, an angle γ is formed between the upper section and the lower section of the auxiliary wing, and 150°<γ<170°.

[0018] Preferably, the lower section of the auxiliary wing forms a V-shaped tip close to the trailing edge of the auxiliary wing, and the V-shaped tip forms an angle a, and 150°<a<170°.

[0019] Preferably, an inner connecting frame is further arranged between the main wing and the auxiliary wing, and the inner connecting frame comprises:

[0020] An L-shaped connecting plate, a first end of which is fixed on the root blade connecting piece, and a second end of which extends in the direction of the gap;

[0021] A side connecting column, one end of which is fixed on the second end of the L-shaped connecting plate, and the other end of which is fixed at the top of the auxiliary wing blade of the auxiliary wing;

[0022] A plurality of inner connecting columns, one end of which is fixed on the second end of the L-shaped connecting plate, and the other end of which is fixed on the auxiliary wing.

[0023] The utility model discloses a beneficial effect: through using the utility model discloses a kind of wide complex leaf high-efficiency axial flow impeller, liquid passes through after main wing, immediately contact aileron, by aileron to the part liquid is straightened, the combination of main wing and aileron enhances the thrust to liquid flow downward, to generate higher discharge flow and discharge flow rate.The continuous bending shape design of main wing, while maintaining structural strength, can better adapt to the dynamic characteristics of fluid, reduce the generation of vortex and turbulent flow, significantly improve the stirring efficiency.The bending shape of aileron straightens the liquid after main wing, the tip of V-shaped can make fluid better separate at the lower section of aileron, reduce fluid resistance, improve operating stability.This straightening effect not only improves the mixing uniformity of liquid, but also reduces energy consumption, improves the overall performance of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the utility model impeller three-dimensional structure schematic diagram;

[0025] Figure 2 It is the utility model main wing tail section and aileron upper section's projection view;

[0026] Figure 3 It is the utility model main wing side angle schematic diagram;

[0027] Figure 4 It is the utility model aileron side angle schematic diagram;

[0028] Figure 5 It is the utility model inboard connecting frame installation position structure schematic diagram.

[0029] Reference numerals in the drawings

[0030] 1, hub, 2, root leaf connecting piece, 3, main wing, 31, main wing first section, 32, main wing middle section, 33, main wing tail section, 34, main wing root, 35, main wing tip, 4, aileron, 41, aileron upper section, 42, aileron lower section, 43, aileron root, 44, aileron tip, 5, connecting plate, 6, gap, 7, inboard connecting frame, 71, side connecting column, 72, inner connecting column, 73, L-shaped connecting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. As long as the effect of the utility model can be played, various changes can be made to the implementation scheme.

[0032] Through the personnel in the art, the parts in the case are sequentially connected, and the specific connection and operation sequence should be referred to the working principle, and the detailed connection means is the public technical knowledge in the art, and the working principle and process are mainly introduced below.

[0033] Referring to Figures 1-5 A wide-blade high-efficiency axial impeller of the embodiment is described.

[0034] As Figure 1 and Figure 2 shown, the axial impeller comprises a hub 1, a plurality of main wings 3 and a plurality of auxiliary wings 4. Each main wing 3 is fixed around the hub 1 in the circumferential direction through a root blade connecting piece 2. The root blade connecting piece 2 is three pieces, which are evenly distributed in the circumferential direction of the hub 1 at an angle of 120°, and are arranged at an angle of 45° with the horizontal line.

[0035] As Figure 1 shown, a gap 6 for the medium to pass through is formed between the main wing 3 and the auxiliary wing 4. The gap 6 is the distance between the main wing 3 and the auxiliary wing 4, and after the liquid passes through the main wing 3, it contacts the auxiliary wing 4, and the auxiliary wing 4 rectifies the part of the liquid, so as to enhance the downward thrust of the liquid flow, and generate higher discharge flow and discharge flow rate.

[0036] As Figure 1 and Figure 2 shown, each auxiliary wing 4 is fixed below the main wing 3 one by one through the connecting plate 5; the connecting plate 5 has two setting modes, one is a single plate body, and the other is formed by bending the auxiliary blade root 43 of the auxiliary wing 4 upward.

[0037] At the same time, in order to ensure the connection strength, an inner connecting frame 7 is further arranged between the main wing 3 and the auxiliary wing 4, and the inner connecting frame 7 comprises an L-shaped connecting plate 73, a side connecting column 71 and a plurality of inner connecting columns 72. The first end of the L-shaped connecting plate 73 is fixed on the root blade connecting piece 2, and the second end extends to the direction of the gap 6; one end of the side connecting column 71 is fixed on the second end of the L-shaped connecting plate 73, and the other end is fixed at the auxiliary blade tip 44 of the auxiliary wing 4; one end of the plurality of inner connecting columns 72 is fixed on the second end of the L-shaped connecting plate 73, and the other end is fixed on the auxiliary wing 4.

[0038] Among them, the main wing 3 covers part of the area of the auxiliary wing 4 on the top view projection. Specifically, the main wing tail section 33 of the main wing 3 covers part of the area of the auxiliary wing upper section 41 of the auxiliary wing 4. The setting positions of the connecting plate 5 and the inner connecting frame 7 are also set on the main wing tail section 33 and the auxiliary wing upper section 41.

[0039] In the embodiment, as Figure 1As shown, the main wing 3 comprises a main wing root 34, a main wing tip 35, and a main wing leading edge and a main wing trailing edge connecting between the main wing root 34 and the main wing tip 35; the aileron 4 comprises an aileron root 43, an aileron tip 44, and an aileron leading edge and an aileron trailing edge connecting between the aileron root 43 and the aileron tip 44; the main wing tip 35 and the aileron root 43 are both fixed on a side wall surface of the connecting plate 5, and the aileron tip 44 is arranged towards the direction of the hub 1.

[0040] The main wing 3 is continuously bent in the direction from the main wing leading edge to the main wing trailing edge to form a main wing front section 31, a main wing middle section 32, and a main wing tail section 33 in sequence, and the bending of the main wing front section 31, the main wing middle section 32, and the main wing tail section 33 is continuous bending in one direction. The main wing 3 is designed to be continuously bent, which can better adapt to the dynamic characteristics of fluid, reduce vortex and turbulence, and improve efficiency while maintaining structural strength.

[0041] An included angle α is formed between the main wing front section 31 and the main wing middle section 32, and 150° < α < 170°, and the included angle α is preferably 160°. An included angle β is formed between the main wing middle section 32 and the main wing tail section 33, and 150° < β < 170°, and the included angle β is preferably 165°.

[0042] The aileron 4 is continuously bent in the direction from the aileron leading edge to the aileron trailing edge to form an aileron upper section 41 and an aileron lower section 42 in sequence. An included angle γ is formed between the aileron upper section 41 and the aileron lower section 42, and 150° < γ < 170°, and the included angle γ is preferably 165°.

[0043] The aileron lower section 42 forms a V-shaped tip close to the direction of the aileron trailing edge. The V-shaped tip forms an included angle a, and 150° < a < 170°. The included angle a is preferably 170°. The bending shape of the aileron 4 straightens the liquid behind the main wing 3, and the V-shaped tip can make the fluid better separate at the aileron lower section 42, reduce resistance, and improve the straightening effect.

[0044] The main wing 3 is designed to be continuously bent, and the aileron 4 is designed to be bent, and after the combination of the two, the axial downward propulsion capacity is improved during rotation, the straightening effect is good, and a certain radial force is resisted. At the same time, the operation stability is strong, and higher discharge flow and discharge flow rate can be generated.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wide-bladed high-efficiency axial impeller, characterized in that, The utility model relates to a kind of wide multi-blade high-efficiency axial impellers, comprising: A hub (1); A plurality of main wings (3), each of the main wings (3) is fixed around the hub (1) circumferentially by root leaf connecting piece (2); And A plurality of ailerons (4), each of the ailerons (4) is fixed under the main wing (3) one by one by connecting plate (5); Wherein, the main wing (3) covers part of the aileron (4) in the projection on the top view.

2. The wide multi-blade high-efficiency axial impeller according to claim 1, wherein: The main wing (3) comprises a main wing root (34), a main wing tip (35), and a main wing leading edge and a main wing trailing edge connecting between the main wing root (34) and the main wing tip (35); The aileron (4) comprises an aileron root (43), an aileron tip (44), and an aileron leading edge and an aileron trailing edge connecting between the aileron root (43) and the aileron tip (44); The main wing tip (35) and the aileron root (43) are both fixed on one side wall surface of the connecting plate (5), and the aileron tip (44) is arranged towards the hub (1).

3. A wide-bladed high-efficiency axial impeller according to claim 2, characterized in that: A gap (6) is formed between the main wing (3) and the aileron (4) for the medium to pass through.

4. A wide-bladed high-efficiency axial impeller according to any one of claims 1-3, characterized in that: The main wing (3) is continuously bent in the direction from the main wing leading edge to the main wing trailing edge to form a main wing first segment (31), a main wing middle segment (32), and a main wing tail segment (33) in sequence, and the bending of the main wing first segment (31), the main wing middle segment (32), and the main wing tail segment (33) is continuous bending in one direction.

5. A wide-bladed high-efficiency axial impeller according to claim 4, characterized in that: An included angle α is formed between the main wing first segment (31) and the main wing middle segment (32), and 150° < α < 170°.

6. A wide-bladed high-efficiency axial impeller according to claim 4, characterized in that: An included angle β is formed between the main wing middle segment (32) and the main wing tail segment (33), and 150° < β < 170°.

7. A wide-bladed high-efficiency axial impeller according to any one of claims 1-3, characterized in that: The aileron (4) is continuously bent in the direction from the aileron leading edge to the aileron trailing edge to form an aileron upper segment (41) and an aileron lower segment (42) in sequence.

8. A wide-bladed high-efficiency axial impeller according to claim 7, characterized in that: An included angle γ is formed between the aileron upper segment (41) and the aileron lower segment (42), and 150° < γ < 165° < 170°.

9. A wide-bladed high-efficiency axial impeller according to claim 7, characterized in that: A V-shaped tip is formed near the aileron trailing edge direction of the aileron lower segment (42), and an included angle a is formed by the V-shaped tip, and 150° < a < 170°.

10. A wide-bladed high-efficiency axial impeller according to claim 3, characterized in that: An inner connecting frame (7) is further arranged between the main wing (3) and the aileron (4), and the inner connecting frame (7) comprises: An L-shaped connecting plate (73) is fixed on the root leaf connecting piece (2) at a first end, and extends towards the gap (6) at a second end; An edge connecting column (71) is fixed on the second end of the L-shaped connecting plate (73) at one end, and is fixed at the aileron tip (44) of the aileron (4) at the other end; A plurality of inner connecting columns (72) are fixed on the second end of the L-shaped connecting plate (73) at one end, and are fixed on the aileron (4) at the other end.

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