Wear-resistant water pump impeller
By setting the front and back anti-wear layers on the blades of the water pump impeller and setting the radially extending ribs on the anti-wear layer, the problem of difficulty in replacing the water pump impeller and the wear-resistant layer is solved, and a higher level of Wear resistance and lower cost.
Patent Information
- Application Number
- CN202421300289.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Existing water pump impellers are prone to wear when encountering solid particles or other substances in the water flow, the wear-resistant layer is costly and difficult to replace, and are susceptible to cavitation.
Design an wear-resistant water pump impeller, by providing a front and back anti-wear layer on each blade and a plurality of radially extending ribs on the anti-wear layer, the ribs are fixed by welding or riveting, providing replacement and anti-wear effect.
Through the rib setting, the wear and impact of particles can be effectively resisted and the wear resistance is improved. The anti-wear layers on the front and back sides can be detached and replaced, extending the service life of the impeller, reducing costs, and improving the working efficiency of the water pump.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water pumps, in particular to a wear-resistant water pump impeller. Background Art
[0002] Centrifugal pumps are widely used for pumping water. When the water pump is in use, it may encounter solid particles or other substances entrained in the water flow, which may cause wear or impact on the water pump impeller. In order to enhance the wear resistance of the water pump impeller, it is now common to set various wear-resistant layers on the blades of the water pump impeller, such as a wear-resistant layer made of ceramic material.
[0003] We believe that this method of adding a wear-resistant layer still has some problems. First, the wear-resistant layer not only has high material costs, but also has high process costs for adding a wear-resistant layer to the impeller, which increases costs; second, the wear-resistant layer is formed integrally with the impeller. Once the wear-resistant layer is worn out, a new wear-resistant layer cannot be added. The only option is to wait until the impeller is worn out before replacing it with a new impeller, which not only increases costs but also makes wear prevention and control more passive; third, the wear-resistant layer will also be affected by cavitation during use.
[0004] The utility model provides a wear-resistant water pump impeller, which has low cost, replaceable wear-resistant layer and better wear-resistant effect. Utility Model Content
[0005] The utility model provides a wear-resistant water pump impeller, which has low cost, replaceable wear-resistant layer and better wear-resistant effect.
[0006] The utility model provides a wear-resistant water pump impeller, comprising a plurality of blades, wherein a front anti-wear layer and a back anti-wear layer are arranged on each blade of the wear-resistant water pump impeller, wherein the front anti-wear layer is arranged on the front side of the blade, and the back anti-wear layer is arranged on the back side of the blade, and a plurality of ribs are arranged on both the front anti-wear layer and the back anti-wear layer, and the ribs extend along the radial direction of the water pump impeller.
[0007] Furthermore, on the front anti-wear layer and the back anti-wear layer, the ribs are fixed to the front anti-wear layer and the back anti-wear layer by welding or riveting.
[0008] Furthermore, the vertical direction of the ribs on the front anti-wear layer and the back anti-wear layer is the normal direction of the position of the ribs.
[0009] Furthermore, the front anti-wear layer and the back anti-wear layer are fixed to the blade by bolt connection.
[0010] Furthermore, transverse branches are arranged in the transverse direction of the ribs.
[0011] Furthermore, the height of the ribs on the front anti-wear layer and the back anti-wear layer is 1 mm to 6 mm.
[0012] The wear-resistant water pump impeller provided by the utility model resists particle wear and impact by arranging ribs, thereby improving the wear resistance effect; the front anti-wear layer and the rear anti-wear layer can be disassembled and replaced, thereby greatly improving the service life of the impeller and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 Shown is a schematic diagram of a water pump impeller.
[0014] Figure 2 Shown is a schematic diagram of the cross-sectional structure of the blades of the water pump impeller according to an embodiment of the utility model.
[0015] Figure 3 Shown is a schematic diagram of a blade of a water pump impeller according to an embodiment of the utility model.
[0016] Figure 4 Shown is a schematic structural diagram of a rib in another embodiment of the utility model.
[0017] Reference numerals:
[0018] 1: impeller; 11: blade; 111: front anti-wear layer; 112: back anti-wear layer; 113: rib; 114: cross branch. DETAILED DESCRIPTION
[0019] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.
[0020] Figure 2 Shown is a schematic diagram of the cross-sectional structure of the blades of the water pump impeller according to an embodiment of the utility model. Figure 3 Shown is a schematic diagram of a blade of a water pump impeller according to an embodiment of the utility model.
[0021] The present invention provides a wear-resistant water pump impeller 1, comprising a plurality of blades 11, such as Figure 2 As shown, a front anti-wear layer 111 and a back anti-wear layer 112 are arranged on each blade 11 of the wear-resistant water pump impeller 1. The front anti-wear layer 111 is arranged on the front side of the blade 11, and the back anti-wear layer 112 is arranged on the back side of the blade 11.
[0022] Most of the wear-resistant layers on the current water pump blades are inorganic non-metallic materials, such as ceramic materials, and special processes are also required to form the wear-resistant layers on the blades, thus further increasing the cost. In the utility model embodiment, the front side wear-resistant layer 111 and the back side wear-resistant layer 112 can be fixed to the surface of the blade 11 by bolt connection, such as using bolts to fasten the front side wear-resistant layer 111 and the back side wear-resistant layer 112 to the surface of the blade 11, when the front side wear-resistant layer 111 or the back side wear-resistant layer 112 needs to be replaced due to wear, the bolts can be unscrewed to remove the worn front side wear-resistant layer 111 or the back side wear-resistant layer 112 and replace it with a new one, so that the process cost is reduced. Since the front side wear-resistant layer 111 or the back side wear-resistant layer 112 becomes a detachable and replaceable structure, the front side wear-resistant layer 111 or the back side wear-resistant layer 112 can also use cheaper materials, such as iron sheet or steel sheet, so that the cost is further reduced.
[0023] like Figure 2 As shown in the embodiment of the utility model, a plurality of ribs 113 are arranged on both the front anti-wear layer 111 and the back anti-wear layer 112. The ribs 113 stand upright on the surface of the front anti-wear layer 111 or the back anti-wear layer 112. Furthermore, the standing direction of the ribs 113 on the front anti-wear layer 111 and the back anti-wear layer 112 is the normal direction of the position where the ribs 113 are located. That is, the ribs 113 are perpendicular to the tangent direction of the position where they are located. In the length direction, as shown in FIG. Figure 3 As shown, the rib 113 extends substantially in the radial direction of the water pump impeller.
[0024] At present, the wear of the water pump impeller is mainly caused by particle impact, wear and cavitation. In the embodiment of the utility model, due to the presence of the rib 113, when there is particle impact or wear, the rib 113 is the first to be impacted, and a part of the particles will be rebounded by the rib 113 or a part of the energy of the particles will be absorbed by the elasticity of the rib 113, thereby alleviating the energy of particle impact or wear. Sometimes when large lumps (such as mud lumps) appear, they are cut by the rib 113, and the large lumps will become small lumps and slow down, thereby reducing wear or impact.
[0025] Cavitation is mainly caused by bubbles bursting on the blade surface and impacting the blade. In the embodiment of the utility model, when bubbles appear, they are impacted by the ribs 113, and the bubbles will first burst on the surface of the ribs 113 without affecting the blade surface. At the same time, large bubbles are easily broken into small bubbles by the impact of the ribs 113, thereby alleviating the impact of cavitation.
[0026] On the front anti-wear layer 111 and the back anti-wear layer 112, the ribs 113 can be fixed to the front anti-wear layer 111 and the back anti-wear layer 112 by welding or riveting. For example, the ribs 113 can be iron sheets or steel sheets, so as to provide a certain elasticity to resist particle impact. Since the front anti-wear layer 111 and the back anti-wear layer 112 are both detachable structures fixed by bolts, when the front anti-wear layer 111 or the back anti-wear layer 112 is replaced, the ribs 113 on the front anti-wear layer 111 or the back anti-wear layer 112 are also replaced.
[0027] The height of the rib 113 on the front anti-wear layer 111 and the back anti-wear layer 112 can be 1 mm to 6 mm. The rib 113 can also provide an additional effect, which is to judge the degree of wear. Under impact and wear, the height of the rib 113 will decrease. The user can judge the degree of wear by the height of the rib 113, and thus roughly judge the service life of the front anti-wear layer 111 and the back anti-wear layer 112 to decide when to replace them. Moreover, the distribution of the degree of wear on the blade 11 can be judged by the height distribution of the rib 113 on the blade 11.
[0028] Since the ribs 113 are arranged on the front anti-wear layer 111 and the back anti-wear layer 112, the surface area of the blade is actually increased. When the impeller pushes the water flow, the interaction area between the impeller and the water is also increased, which can improve the efficiency of the water pump to a certain extent. The ribs 113 actually play the role of a micro blade. In addition, since the ribs 113 extend along the radial direction of the impeller, under the influence of the ribs 113, the water flow can also be stabilized, further improving the working efficiency of the water pump.
[0029] Figure 4 FIG. 1 is a schematic diagram of the structure of the rib in another embodiment of the utility model. Figure 4 As shown, transverse branches or transverse ribs are provided in the lateral direction of the rib 113 , thereby further increasing the surface area of the rib 113 , increasing the area of the rib 113 interacting with particles or bubbles, and improving the anti-wear effect of the rib 113 .
[0030] The wear-resistant water pump impeller provided by the utility model resists particle wear and impact by arranging ribs, thereby improving the wear resistance effect; the front anti-wear layer and the rear anti-wear layer can be disassembled and replaced, thereby greatly improving the service life of the impeller and reducing costs.
[0031] In the description of the present invention, it is necessary to understand that the terms “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” orientations or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.
Claims
1. A wear-resistant water pump impeller, comprising a plurality of blades, characterized in that: A front anti-wear layer and a back anti-wear layer are arranged on each blade of the wear-resistant water pump impeller, the front anti-wear layer is arranged on the front side of the blade, and the back anti-wear layer is arranged on the back side of the blade. A plurality of ribs are arranged on the front anti-wear layer and the back anti-wear layer, and the ribs extend along the radial direction of the water pump impeller.
2. The wear-resistant water pump impeller according to claim 1, characterized in that: On the front anti-wear layer and the back anti-wear layer, the ribs are fixed to the front anti-wear layer and the back anti-wear layer by welding or riveting.
3. The wear-resistant water pump impeller according to claim 1, characterized in that: The vertical direction of the ribs on the front anti-wear layer and the back anti-wear layer is the normal direction of the position of the ribs.
4. The wear-resistant water pump impeller according to claim 1, characterized in that: The front side anti-wear layer and the back side anti-wear layer are fixed to the blade by bolt connection.
5. The wear-resistant water pump impeller according to claim 1, characterized in that: Transverse branches are arranged in the transverse direction of the ribs.
6. The wear-resistant water pump impeller according to claim 1, characterized in that: The height of the ribs on the front anti-wear layer and the back anti-wear layer is 1 mm to 6 mm.