Efficient and energy-saving axial flow single-wing impeller

Abstract

The utility model provides an efficient and energy-saving axial flow single-wing impeller, which relates to the technical field of axial flow single-wing impellers and comprises a hub, multi-angle blades, blade connecting plates, first blade connecting sections, second blade connecting sections and third blade connecting sections. The multi-angle blades are fixedly connected to the edge of the upper end of the hub in a 120-degree uniform distribution mode, the multi-angle blade bodies comprise the blade first connecting sections, the blade second connecting sections and the blade third connecting sections, the mounting angles of the blade first connecting sections, the blade second connecting sections and the blade third connecting sections are gradually increased, the design better adapts to the speed gradient change of axial flow fluid, the flowing track of the fluid is optimized, and the flow speed of the fluid is increased. According to the impeller, fluid forms a smooth flowing layer on the surfaces of the blades, generation of vortexes is reduced, energy consumption is reduced, mechanical energy can be more effectively converted into kinetic energy and pressure energy of the fluid through the acting force between the blades and the fluid, and therefore the energy conversion efficiency of the whole impeller is improved.

Description

Technical Field

[0001] This utility model relates to the field of axial flow single-blade impeller technology, and in particular to a high-efficiency and energy-saving axial flow single-blade impeller. Background Technology

[0002] In existing axial flow impellers, traditional impeller structures often suffer from significant energy losses. While multi-blade impellers can improve performance in some aspects, they also have drawbacks such as complex structures and high manufacturing costs. Furthermore, existing single-blade axial flow impellers still have considerable room for improvement in efficiency and energy saving. For example, when air or liquid flows through the impeller, the shape and angle of the blades, as well as the overall structural design of the impeller, are not optimized, resulting in low fluid energy conversion efficiency and the waste of some energy as heat. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency and energy-saving axial flow single-blade impeller, which has the advantage of improving the energy conversion efficiency of the entire impeller and solving the technical problem that the fluid energy conversion efficiency is not high due to the insufficient optimization of the shape and angle of the blades and the overall structural design of the impeller, resulting in some energy being wasted in the form of heat.

[0004] This utility model provides a high-efficiency and energy-saving axial flow single-blade impeller, comprising:

[0005] The wheel hub has multi-angle blades that are evenly distributed and fixedly connected at 120° on its upper edge.

[0006] The multi-angle blade includes;

[0007] The blade connecting plate is fixedly connected to the upper edge of the hub by bolts;

[0008] The blade connecting plate has a first connecting section welded to its outer end, which has an angle of 30° with the horizontal plane.

[0009] The first connecting section of the blade is bent in the middle to form the second connecting section of the blade, which has an angle of 45° with the horizontal plane.

[0010] The outer end of the first connecting section of the blade is bent to form the third connecting section of the blade, which has an angle of 60° with the horizontal plane.

[0011] As a further optimization, in order to enhance the fluid ejection capacity, the counterclockwise surfaces of the first connecting section, the second connecting section, and the third connecting section of the blade are recessed.

[0012] As a further optimization, in order to reduce the contact surface and lower the resistance when the multi-angle blade rotates, the width of the multi-angle blade gradually decreases from the inside to the outside.

[0013] As a further optimization scheme, in order to reduce the contact surface, reduce the resistance when the multi-angle blade rotates, the multi-angle blade gradually thins from inside to outside.

[0014] As a further optimization scheme, in order to connect the first connecting section and the blade connecting plate as a reinforcing rib, and to straighten the flow, a strip-shaped plate is embedded and assembled in the middle of the upper surface of the blade first connecting section along the length direction, and the lower end of the strip-shaped plate is fixedly connected with the corresponding blade connecting plate.

[0015] As a further optimization scheme, in order to improve the mechanical strength of the reinforcing rib, the upper end of the strip-shaped plate is formed into a triangular pointed end.

[0016] As a further optimization scheme, in order to reduce the resistance of the fluid to the rotation of the multi-angle blade, the multi-angle blade is formed into a bending plate by bending downward along the clockwise end, which comprises:

[0017] A first bending section which has the same inclination angle as the blade first connecting section;

[0018] A second bending section which has the same inclination angle as the blade second connecting section;

[0019] A third bending section which has the same inclination angle as the blade third connecting section;

[0020] The first bending section, the second bending section and the third bending section are sequentially connected and fixed.

[0021] As a further optimization scheme, in order to facilitate the installation and fixation of the multi-angle blade, the wheel hub comprises:

[0022] A cylindrical barrel, the outer wall of which is integrally formed with a connecting flange at the upper end.

[0023] As a further optimization scheme, in order to realize light weight and high strength, and reduce the inertial force during rotation, the main body of the multi-angle blade is an aluminum alloy blade body, and the outer wall of the aluminum alloy blade body is hot-pressed and solidified to form a carbon fiber reinforced resin layer.

[0024] As a further optimization scheme, in order to reduce the friction between the outer wall of the multi-angle blade and the fluid and reduce energy consumption, the outer wall of the carbon fiber reinforced resin layer is coated with a Teflon coating.

[0025] The utility model discloses an efficient energy-saving axial flow single-wing impeller, which has the following improvements and advantages compared with the prior art.

[0026] The multi-angle blade wing is fixedly connected at the 120-degree equidistant position of the upper end edge of the wheel hub, and the multi-angle blade wing is mainly composed of a blade first connecting section, a blade second connecting section and a blade third connecting section with gradually increased installation angles, so that the speed gradient change of the axial flow fluid is better adapted, the flow trajectory of the fluid is optimized, the smooth flow layer of the fluid is formed on the blade surface, the vortex generation is reduced, the energy consumption is reduced, the acting force between the blade and the fluid can more effectively convert the mechanical energy into the kinetic energy and the pressure energy of the fluid, and the energy conversion efficiency of the whole impeller is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the specific embodiment of the utility model or the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0029] Figure 2 It is a multi-angle blade wing and strip-shaped plate structure schematic diagram of the utility model;

[0030] Figure 3 It is a wheel hub structure schematic diagram of the utility model;

[0031] Figure 4 It is a structure schematic section view of the multi-angle blade wing outer wall structure layer of the utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1-wheel hub, 11-cylinder barrel, 12-connecting flange, 2-multi-angle blade wing, 21-blade first connecting section, 22-blade connecting plate, 23-blade second connecting section, 24-blade third connecting section, 3-bent plate, 31-first bent section, 32-second bent section, 33-third bent section, 4-strip-shaped plate, 41-triangle-shaped tip, 5-carbon fiber reinforced resin layer, 51-teflon coating. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be described clearly and completely in combination with the embodiments. Obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] In the description of the utility model, need understanding is, the term "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and so on indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore it can not be understood as the limitation of the utility model.

[0036] In the description of the utility model, need understanding is, the term "first", "second" is only for the description purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified. In addition, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] Please refer to Figures 1-4 The utility model provides technical scheme: high -efficient energy -saving single wing impeller of axial flow, including:

[0038] The upper end edge of the wheel hub 1 is uniformly fixedly connected with the multi-angle blade wing 2 at 120 degrees.

[0039] The multi-angle blade wing 2 includes:

[0040] The blade wing connecting plate 22 is fixedly connected to the upper end edge of the wheel hub 1 by bolts, and the blade wing first connecting section 21 is uniformly fixedly connected to the upper end edge of the wheel hub 1 by the blade wing connecting plate 22 at 120 degrees.

[0041] The blade wing first connecting section 21 is welded to the outer side end of the blade wing connecting plate 22, and the included angle with the horizontal plane is 30 degrees.

[0042] The blade wing second connecting section 23 is formed by bending the middle part of the blade wing first connecting section 21, and the included angle with the horizontal plane is 45 degrees.

[0043] The blade wing third connecting section 24 is formed by bending the outer side end of the blade wing first connecting section 21, and the included angle with the horizontal plane is 60 degrees.

[0044] The multi-angle blade 2 body is composed of a blade first connecting section 21, a blade second connecting section 23 and a blade third connecting section 24 with gradually increasing installation angles. This design better adapts to the speed gradient change of the axial flow fluid, optimizes the flow trajectory of the fluid, forms a smooth flow layer on the blade surface, reduces the generation of vortex, reduces energy consumption, and the force between the blade and the fluid can more effectively convert mechanical energy into kinetic energy and pressure energy of the fluid, thereby improving the energy conversion efficiency of the entire impeller.

[0045] In some embodiments, in order to enhance the discharge capacity of the fluid, the counterclockwise surface of the blade first connecting section 21, the blade second connecting section 23 and the blade third connecting section 24 is recessed. This recess enhances the driving capacity of the multi-angle blade 2 when rotating, and enhances the discharge capacity of the fluid.

[0046] In some embodiments, in order to reduce the contact surface and reduce the resistance when the multi-angle blade 2 rotates, the width of the multi-angle blade 2 gradually decreases from the inside to the outside.

[0047] In some embodiments, in order to reduce the contact surface and reduce the resistance when the multi-angle blade 2 rotates, the thickness of the multi-angle blade 2 gradually decreases from the inside to the outside.

[0048] In some embodiments, in order to connect the first connecting section 21 and the blade connecting plate 22 as a reinforcing rib and to straighten the liquid flow, a strip-shaped plate 4 is embedded and assembled in the middle of the upper surface of the blade first connecting section 21 along the length direction, and the lower end of the strip-shaped plate 4 is fixedly connected with the corresponding blade connecting plate 22.

[0049] In some embodiments, in order to improve the mechanical strength as a reinforcing rib, the upper end of the strip-shaped plate 4 forms a triangular-shaped tip 41.

[0050] In some embodiments, in order to reduce the resistance of the fluid to the rotation of the multi-angle blade 2, the multi-angle blade 2 is downwardly and tortuously bent at the clockwise end to form a bending plate 3, which includes:

[0051] A first bending section 31 with the same inclination angle as the blade first connecting section 21;

[0052] A second bending section 32 with the same inclination angle as the blade second connecting section 23;

[0053] A third bending section 33 with the same inclination angle as the blade third connecting section 24;

[0054] The first bending section 31, the second bending section 32 and the third bending section 33 are sequentially connected and fixed end to end.

[0055] In some embodiments, in order to facilitate the installation and fixation of the multi-angle blade 2, the wheel hub 1 includes:

[0056] A cylindrical barrel 11 is integrally formed with a connecting flange 12 at the upper end of its outer wall, and is fixed by bolts.

[0057] In some embodiments, in order to achieve light weight and high strength, reduce the inertial force during rotation, and reduce useless energy consumption, the main body of the multi-angle blade 2 is an aluminum alloy blade body, and a carbon fiber reinforced resin layer 5 is formed on the outer wall by hot pressing and curing.

[0058] In some embodiments, in order to reduce the friction between the outer wall of the multi-angle blade 2 and the fluid and reduce energy consumption, the outer wall of the carbon fiber reinforced resin layer 5 is coated with a Teflon coating 51.

[0059] Working principle:

[0060] The blade connecting plate 22 is fixed and connected to the upper end edge of the hub 1 by bolts, and the blade connecting plate 22 uniformly fixes and connects the first connecting section 21 of the blade at 120° on the upper end edge of the hub 1.

[0061] The main body of the multi-angle blade 2 is the first connecting section 21, the second connecting section 23 and the third connecting section 24 of the blade, which are gradually increased in installation angle. This design better adapts to the speed gradient change of the axial flow fluid, optimizes the flow trajectory of the fluid, forms a smooth flow layer on the blade surface, reduces the generation of vortex, reduces energy consumption, and the force between the blade and the fluid can more effectively convert mechanical energy into kinetic energy and pressure energy of the fluid, thereby improving the energy conversion efficiency of the whole impeller.

[0062] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high efficiency energy saving axial flow single wing impeller characterized in that, The utility model relates to a kind of multi-angle vane and multi-angle vane for wind turbine, including: Wheel rim (1), the upper end edge of which is uniformly fixedly connected with multi-angle vane (2) at 120 °; The multi-angle vane (2) includes; Vane connecting plate (22) is fixedly connected on the upper end edge of wheel rim (1) by bolt; The outer side end of the vane connecting plate (22) is welded with vane first connecting section (21), which is 30 ° with horizontal plane; The middle part of the vane first connecting section (21) is bent to form vane second connecting section (23), which is 45 ° with horizontal plane; The outer side end of the vane first connecting section (21) is bent to form vane third connecting section (24), which is 60 ° with horizontal plane.

2. The high efficiency and energy saving single winged impeller of axial flow according to claim 1, characterized in that, The anticlockwise surface of the vane first connecting section (21), vane second connecting section (23) and vane third connecting section (24) forms a recess.

3. The high efficiency and energy saving single winged impeller of axial flow according to claim 1, characterized in that, The width of the multi-angle vane (2) gradually decreases from inside to outside.

4. The high efficiency and energy saving single winged impeller of an axial flow type according to claim 1, wherein The thickness of the multi-angle vane (2) gradually thins from inside to outside.

5. The high efficiency and energy saving single blade axial flow impeller according to claim 1, characterized in that, The middle part of the upper surface of the vane first connecting section (21) is embedded with strip-shaped plate (4) along the length direction, and the lower end of the strip-shaped plate (4) is fixedly connected with the corresponding vane connecting plate (22).

6. The high efficiency and energy saving single blade axial flow impeller according to claim 5, characterized in that, The upper end of the strip-shaped plate (4) forms triangular pointed end (41).

7. The high efficiency and energy saving mixed flow single wing impeller according to claim 1, characterized in that, The clockwise end of the multi-angle vane (2) is downwardly bent to form bending plate (3), which includes: First bending section (31), which has the same inclination angle as the vane first connecting section (21); Second bending section (32), which has the same inclination angle as the vane second connecting section (23); Third bending section (33), which has the same inclination angle as the vane third connecting section (24); The first bending section (31), second bending section (32) and third bending section (33) are sequentially connected and fixed.

8. The high efficiency and energy saving mixed flow single wing impeller according to claim 1, characterized in that, The wheel rim (1) includes: Cylindrical barrel (11), which is integrally formed with connecting flange (12) on the outer wall of the upper end.

9. The high efficiency and energy saving mixed flow single blade impeller according to claim 1, wherein, The main body of the multi-angle vane (2) is aluminum alloy vane body, and the outer wall is hot-pressed and solidified to form carbon fiber reinforced resin layer (5).

10. The high efficiency and energy saving single winged impeller of axial flow according to claim 9, characterized in that, The outer wall of the carbon fiber reinforced resin layer (5) is coated with Teflon coating (51).

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