Centrifugal impeller

Abstract

The utility model discloses a centrifugal impeller, and relates to the technical field of centrifugal impellers. The impeller comprises an impeller body, a flywheel is coaxially and fixedly installed on the impeller body, balance weight pieces are evenly arranged on the flywheel, and the diameter of the flywheel is larger than that of the impeller body. The impeller has the advantages that the flywheel is arranged on the impeller body, the rotational inertia of the impeller is greatly increased, the stability of the whole system is improved, the impeller can convert fluid kinetic energy more stably and efficiently, and energy loss caused by vibration and instability is reduced; due to the design of the flywheel, the functions of energy storage and energy release are achieved, and the problem that high-power output is difficult to achieve during low-power input of a traditional impeller is effectively solved; the dynamic balance of the impeller is further optimized through the uniform arrangement of the balance weight pieces, the service life is prolonged, the overall rotational inertia can be increased, and the power generation efficiency is improved; the device is low in manufacturing cost, high in practicability, simple in structure and easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal impellers, in particular to a centrifugal impeller. Background Art

[0002] In the field of power generation technology, especially in systems that use fluid kinetic energy to generate electricity, centrifugal impellers play a vital role. With the development of renewable energy and distributed energy systems, the efficiency and performance requirements of centrifugal impellers are increasing. However, traditional centrifugal impeller designs often have limitations in energy conversion efficiency and power transmission.

[0003] Although the traditional centrifugal impeller design can achieve the conversion of fluid kinetic energy to a certain extent, its energy conversion efficiency is often not high, and it is difficult to achieve high power output. At the same time, since the impeller will generate vibration and noise when rotating at high speed, this not only affects the stable operation of the equipment, but may also cause energy loss and mechanical wear.

[0004] To overcome these problems, some researchers have tried to improve the performance of the impeller by improving the blade shape, material and manufacturing process. However, these improvements can only improve the energy conversion efficiency to a certain extent.

[0005] Based on this, the applicant proposed a centrifugal impeller to solve the above technical problems. Utility Model Content

[0006] The utility model aims at the deficiencies in the prior art and provides a centrifugal impeller to solve the above technical problems.

[0007] The utility model solves the problem through the following technical solutions:

[0008] A centrifugal impeller comprises an impeller body, on which a flywheel is coaxially fixedly mounted, counterweights are evenly arranged on the flywheel, and the diameter of the flywheel is greater than the diameter of the impeller body.

[0009] Preferably, the impeller body comprises a base plate, a plurality of blades are evenly arranged on the base plate along the circumference, and a connecting ring is fixedly mounted on the blades.

[0010] Preferably, the fan blades are arranged in an arc shape.

[0011] Preferably, the thickness of the outer end of the blade is smaller than the thickness of the middle portion.

[0012] Preferably, an axial hole is provided on the bottom plate, and a plurality of weight-reducing holes are evenly arranged on the bottom plate around the circumference of the axis of the axial hole.

[0013] Preferably, the flywheel is mounted on a side of the base plate facing away from the fan blades, and the counterweight is fixedly mounted on an outer edge of the flywheel on a side facing away from the impeller body.

[0014] Preferably, the flywheel is disposed on both sides of the impeller body, and the counterweight is installed on the outer edge of the flywheel on the side facing away from the impeller body.

[0015] Preferably, the counterweight member includes a counterweight ring or a counterweight block.

[0016] Preferably, a through hole of the same size is provided on the flywheel corresponding to the shaft hole, and a shaft sleeve is provided on the impeller body and the flywheel through the shaft hole and the through hole.

[0017] Preferably, the impeller body, the flywheel and the shaft sleeve are fixedly connected by a plurality of bolts or screws.

[0018] The beneficial effects of the utility model are:

[0019] First, setting a flywheel on the impeller body greatly increases the impeller's rotational inertia and improves the stability of the entire system. Under the same power input, the impeller can convert fluid kinetic energy more stably and efficiently, reducing energy loss caused by vibration and instability.

[0020] Secondly, the flywheel design also has the function of energy storage and release. When the power input is low, the flywheel can store excess energy, and when high power output is required, the flywheel can quickly release the stored energy, thereby achieving efficient energy conversion and transmission. This mechanism effectively solves the problem that traditional impellers are difficult to achieve high power output when the power input is low.

[0021] Furthermore, the uniform setting of the counterweights further optimizes the dynamic balance of the impeller, which not only reduces the vibration and noise of the impeller when it rotates at high speed, improves the operating stability of the equipment, but also reduces the mechanical wear and energy loss caused by imbalance, prolongs the service life of the equipment, and can also increase the overall moment of inertia and improve power generation efficiency;

[0022] Finally, the device has low manufacturing cost and strong practicality, and its simple structure and easy maintenance also improve the reliability and ease of use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of embodiment 1 of the utility model.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of embodiment 1 of the utility model.

[0026] Figure 3 It is an exploded view of the three-dimensional structure of Example 1 of the utility model.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the impeller main body of the utility model.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of embodiment 2 of the present utility model.

[0029] Figure 6 It is an exploded view of the three-dimensional structure of embodiment 2 of the present utility model.

[0030] In the figure: 1, impeller body, 11, bottom plate, 111, shaft hole, 112, weight reduction hole, 12, fan blade, 13, connecting ring, 2, flywheel, 3, counterweight, 4, shaft sleeve. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0032] like Figures 1 to 4As shown, a centrifugal impeller of the utility model comprises an impeller body 1, the impeller body 1 comprises a bottom plate 11, an axial hole 111 is arranged on the bottom plate 11, a plurality of weight-reducing holes 112 are evenly arranged on the bottom plate 11 around the axis of the axial hole 111, a plurality of blades 12 are evenly arranged on the bottom plate 11 along the circumference, the blades 12 are arranged in an arc shape, a connecting ring 13 is fixedly installed on the blades 12, a flywheel 2 is coaxially fixedly installed on the impeller body 1, and the flywheel 2 is installed on the bottom plate 11 away from the blades 12 side, the flywheel 2 is evenly provided with counterweights 3, the counterweights 3 are fixedly mounted on the outer edge of the flywheel 2 on the side facing away from the impeller body 1, the counterweights 3 include a counterweight ring, the diameter of the flywheel 2 is larger than the diameter of the impeller body 1, a through hole of the same size is provided on the flywheel 2 corresponding to the axial hole 111, a shaft sleeve 4 is provided on the impeller body 1 and the flywheel 2 through the axial hole 111 and the through hole, and the impeller body 1, the flywheel 2 and the shaft sleeve 4 are fixedly connected by a plurality of bolts or screws. Embodiment 2:

[0033] like Figures 5 and 6 As shown, a centrifugal impeller of the utility model comprises an impeller body 1, the impeller body 1 comprises a bottom plate 11, the bottom plate 11 is provided with an axial hole 111, the bottom plate 11 is provided with a plurality of weight-reducing holes 112 evenly arranged around the axis of the axial hole 111, the bottom plate 11 is provided with a plurality of blades 12 evenly arranged along the circumference, the blades 12 are arranged in an arc shape, a connecting ring 13 is fixedly installed on the blades 12, a flywheel 2 is coaxially fixedly installed on the impeller body 1, and the two ends of the impeller body 1 are provided with a plurality of blades 12, the blades 12 are arranged in an arc shape, a connecting ring 13 is fixedly installed on the blades 12, a flywheel 2 is coaxially fixedly installed on the impeller body 1, and the two ends of the impeller body 1 are provided with a plurality of blades 12 evenly arranged along the circumference, and the two ends of the impeller body 1 are provided with a plurality of blades 12 evenly arranged along the circumference, and the two ends of the impeller body 1 are provided with a plurality of blades 12 evenly arranged along the circumference, the blades 12 are arranged in an arc shape, a connecting ring 13 is fixedly installed on the blades 12, a flywheel 2 is coaxially fixedly installed on the impeller body 1 ... The flywheel 2 is arranged on both sides, the counterweight 3 is installed on the outer edge of the flywheel 2 facing away from the impeller body 1, the counterweight 3 includes a counterweight ring, the diameter of the flywheel 2 is larger than the diameter of the impeller body 1, and a through hole of the same size is arranged on the flywheel 2 corresponding to the axial hole 111, and a shaft sleeve 4 is arranged on the impeller body 1 and the flywheel 2 through the axial hole 111 and the through hole, and the impeller body 1, the flywheel 2 and the shaft sleeve 4 are fixedly connected by a plurality of bolts or screws.

[0034] In the above embodiment and other embodiments, the thickness of the outer end of the fan blade 12 is smaller than the thickness of the middle portion.

[0035] In the above embodiment and other embodiments, the counterweight member 3 includes a counterweight block, and the counterweight block is evenly installed on the outer edge of the flywheel along the circumference.

[0036] In the above embodiment, the counterweight 3 and the flywheel 2 may be connected by welding or threaded connection.

[0037] In the above embodiment, the connection between the impeller body 1 and the flywheel 2 may also be achieved by welding.

[0038] The relatively small impeller body 1 can allow the generator to have a higher rotation speed based on the same driving force. The higher rotation speed makes the generator more efficient and has a smaller torque load. The larger flywheel 2 and the added counterweight 4 increase the rotational inertia of the overall system, further improving the power generation efficiency.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims, rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A centrifugal impeller, comprising an impeller body (1), characterized in that: A flywheel (2) is coaxially fixedly mounted on the impeller body (1), counterweights (3) are evenly arranged on the flywheel (2), and the diameter of the flywheel (2) is larger than the diameter of the impeller body (1).

2. A centrifugal impeller according to claim 1, characterized in that: The impeller body (1) comprises a bottom plate (11), on which a plurality of blades (12) are evenly arranged along a circumference, and a connecting ring (13) is fixedly mounted on the blades (12).

3. A centrifugal impeller according to claim 2, characterized in that: The fan blades (12) are arranged in an arc shape.

4. A centrifugal impeller according to claim 2, characterized in that: The thickness of the outer end of the fan blade (12) is smaller than the thickness of the middle part.

5. A centrifugal impeller according to claim 2, characterized in that: The bottom plate (11) is provided with an axial hole (111), and a plurality of weight-reducing holes (112) are evenly arranged on the bottom plate (11) around the circumference of the axis of the axial hole (111).

6. A centrifugal impeller according to claim 2, characterized in that: The flywheel (2) is mounted on a side of the base plate (11) facing away from the fan blades (12), and the counterweight (3) is fixedly mounted on an outer edge of the flywheel (2) on a side facing away from the impeller body (1).

7. A centrifugal impeller according to claim 1, characterized in that: The flywheel (2) is arranged on both sides of the impeller body (1), and the counterweight (3) is installed on the outer edge of the flywheel (2) on the side facing away from the impeller body (1).

8. A centrifugal impeller according to claim 1, characterized in that: The counterweight component (3) comprises a counterweight ring or a counterweight block.

9. A centrifugal impeller according to claim 5, characterized in that: A through hole of the same size is provided on the flywheel (2) at a position corresponding to the shaft hole (111), and a shaft sleeve (4) is provided on the impeller body (1) and the flywheel (2) through the shaft hole (111) and the through hole.

10. A centrifugal impeller according to claim 9, characterized in that: The impeller body (1), the flywheel (2) and the shaft sleeve (4) are fixedly connected by a plurality of bolts or screws.

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