Corrosion-resistant pump blade

Abstract

The utility model discloses a corrosion-resistant pump blade which comprises a blade fixing plate, a center shaft rod is fixed to the center of the blade fixing plate in a penetrating mode, a plurality of blade bodies are arranged on the outer side of the center shaft rod, and the blade bodies are in a spiral shape and are distributed around the axis of the center shaft rod in a circular array mode. One side of each blade individual is attached to the outer surface of the central shaft rod, the bottom end of each blade individual is fixed to the blade fixing plate, and a plurality of drainage grooves distributed at equal intervals are formed in the upper surface of each blade individual. Compared with the prior art, the blade has the advantages that the isolation coating is additionally arranged on the outer side of the blade, the additional coating is additionally arranged on the outer side of the isolation coating, the blade is protected through the isolation coating and the additional coating, and then the isolation coating and the additional coating are protected through the electroplated anti-corrosion coating and the anti-rust coating, so that the main structure of the blade is prevented from being overlooked; the maintenance frequency of the blade is reduced, and the overall service life of the blade is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of corrosion-resistant pump technology, and in particular to a corrosion-resistant pump blade. Background Technology

[0002] As the name suggests, corrosion-resistant pumps are pumps with corrosion-resistant properties. They are mainly used for transporting corrosive liquids and are one of the most widely used pumps in general equipment. In the domestic market, the most widely used corrosion-resistant pumps for transporting corrosive liquids are made of stainless steel, because these pumps have advantages such as a wide range of corrosion resistance and convenient maintenance and operation.

[0003] Corrosion-resistant pumps are mainly composed of pump body, impeller, bearing, mechanical seal, pump shaft, sealing ring, bearing assembly, etc. The impeller is the rotating part of the pump. The rotation of the impeller generates negative pressure, which draws in the medium and then pushes it into the outlet pipe for transportation. The impeller is usually equipped with multiple blades.

[0004] However, since the blade and impeller are an integral structure, the outer side of the blade is protected by an additional coating of anti-corrosion and anti-rust material. If the anti-corrosion and anti-rust material falls off, the blade body will be corroded, affecting the service life of the blade. Utility Model Content

[0005] The technical problem this invention aims to solve is that the blade and impeller are an integral structure. The outer side of the blade is protected by an additional coating of anti-corrosion and anti-rust material. However, if the anti-corrosion and anti-rust material falls off, the blade body will be corroded, affecting the service life of the blade.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A corrosion-resistant pump blade includes a blade fixing plate, a central shaft fixed through the center of the blade fixing plate, a plurality of individual blades arranged on the outer side of the central shaft, the plurality of individual blades being spirally arranged and distributed in a circular array around the axis of the central shaft, one side of each individual blade adhering to the outer surface of the central shaft, the bottom end of each individual blade being fixed to the blade fixing plate, and a plurality of equally spaced drainage grooves being provided on the upper surface of each individual blade.

[0008] Preferably, the drainage grooves are spirally distributed on the upper surface of the blade, and the inclination angle between the drainage grooves and the upper and lower edges of the blade is 60 degrees.

[0009] Preferably, the blade includes a blade body, the inner side of the blade body is fixed to the outer surface of the central shaft, and the bottom end of the blade body is fixed to the blade fixing plate.

[0010] Preferably, the outer side of the blade body is covered with an isolation coating, the outer side of the isolation coating is covered with an additional coating, the outer side of the additional coating is covered with an electroplated anti-corrosion layer, and the outer side of the electroplated anti-corrosion layer is covered with an anti-rust coating.

[0011] Preferably, the material of the additional coating is exactly the same as that of the blade body, the additional coating is formed by spraying it onto the outer surface of the isolation coating in a molten state, and the thickness of the additional coating is 5 mm.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. By adding an isolation coating to the outside of the blade, and then adding an additional coating to the outside of the isolation coating, the blade is protected by the additional coating, which prevents the main structure of the blade from being corroded, reduces the number of blade maintenance times, and extends the overall service life of the blade.

[0014] 2. By adding multiple equally spaced airflow channels to the outer surface of the blade, and making the airflow channels conform to the spiral curvature of the blade, the flow rate of air between the blades is increased, thereby improving the output performance of the blade. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the diversion channel of this utility model;

[0017] Figure 3 This is an enlarged view of the structure of a single blade of the utility model.

[0018] In the diagram: 1. Blade fixing plate; 2. Central shaft; 3. Individual blade; 31. Blade body; 32. Isolation coating; 33. Additional coating; 34. Electroplated anti-corrosion layer; 35. Anti-rust coating; 4. Drainage channel. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] like Figure 1As shown, it includes a blade fixing plate 1, a central shaft 2 is fixed through the center of the blade fixing plate 1, and multiple blade individuals 3 are provided on the outer side of the central shaft 2. The multiple blade individuals 3 are spiral and arranged in a circular array around the axis of the central shaft 2. One side of the blade individual 3 is attached to the outer surface of the central shaft 2, and the bottom end of the blade individual 3 is fixed to the blade fixing plate 1.

[0021] As a preferred technical solution in this embodiment, such as Figure 2 As shown, the upper surface of the blade 3 is provided with multiple equally spaced drainage grooves 4.

[0022] In this embodiment, the flow channels 4 are spirally distributed on the upper surface of the blade 3, and the inclination angle between the flow channels 4 and the upper and lower edges of the blade 3 is 60 degrees. The flow channels 4 are used to increase the flow rate of air between the blades 3, thereby increasing the working efficiency of the blades 3.

[0023] As a preferred technical solution in this embodiment, such as Figure 3 As shown, the blade body 3 includes a blade body 31. The inner side of the blade body 31 is fixed to the outer surface of the central shaft 2. The bottom end of the blade body 31 is fixed to the blade fixing plate 1. The outer side of the blade body 31 is covered with an isolation coating 32. The outer side of the isolation coating 32 is covered with an additional coating 33. The outer side of the additional coating 33 is covered with an electroplated anti-corrosion layer 34. The outer side of the electroplated anti-corrosion layer 34 is covered with an anti-rust coating 35. The electroplated anti-corrosion layer 34 and the anti-rust coating 35 are used to protect the blade body 31, the isolation coating 32, and the additional coating 33 to prevent the additional coating 33 from being corroded.

[0024] The material of the additional coating 33 is exactly the same as that of the blade body 31. The additional coating 33 is formed by spraying it onto the outer surface of the isolation coating 32 in a molten state. The thickness of the additional coating 33 is 5mm. The additional coating 33 is used to protect the blade body 31. After the electroplated anti-corrosion layer 34 and the anti-rust coating 35 are damaged, the additional coating 33 will be corroded instead of the blade body 31, so that the main structure of the blade body 31 is not damaged and the service life of the blade body 31 is extended.

[0025] Working principle: First, the raw materials for manufacturing corrosion-resistant pump blades are milled to form the blade fixing plate 1, central shaft 2, and individual blades 3 as a single unit. Then, grooves are cut into the upper surface of individual blades 3, creating multiple evenly spaced drainage grooves 4. Next, a protective coating 32 is applied to the outer surface of individual blades 3. After the protective coating 32 solidifies, the raw materials of the blade body 31 are melted and sprayed onto the outer side of the protective coating 32, forming an additional coating 33 on the outer side of the protective coating 32. After forming, the corrosion pump blades undergo heat treatment, precision machining, polishing, and grinding. Then, anti-rust and anti-corrosion coatings are sprayed sequentially on the outside of the additional coating 33, forming an electroplated anti-corrosion layer 34 and an anti-rust coating 35 on the outside of the additional coating 33. This completes the processing of the corrosion pump blades. During the use of the corrosion pump blades, the additional coating 33 acts as an isolation and protection on the outside of the blade body 31. After the electroplated anti-corrosion layer 34 and the anti-rust coating 35 fail, they replace the blade body 31 and are corroded, so that the blade body 31 is not affected in a short period of time, thus extending the service life of the corrosion pump blades.

[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A corrosion-resistant pump blade, comprising a blade fixing plate (1), characterized in that: A central shaft (2) is fixed through the center of the blade fixing plate (1). Multiple blade individuals (3) are provided on the outside of the central shaft (2). The multiple blade individuals (3) are spiral and arranged in a circular array around the axis of the central shaft (2). One side of the blade individual (3) is attached to the outer surface of the central shaft (2). The bottom end of the blade individual (3) is fixed to the blade fixing plate (1). Multiple equally spaced drainage grooves (4) are provided on the upper surface of the blade individual (3). The blade individual (3) includes a blade body (31), the inner side of the blade body (31) is fixed to the outer surface of the central shaft (2), and the bottom end of the blade body (31) is fixed to the blade fixing plate (1). The outer side of the blade body (31) is covered with an isolation coating (32), the outer side of the isolation coating (32) is covered with an additional coating (33), the outer side of the additional coating (33) is covered with an electroplated anti-corrosion layer (34), and the outer side of the electroplated anti-corrosion layer (34) is covered with an anti-rust coating (35).

2. The corrosion-resistant pump blade according to claim 1, characterized in that: The drainage groove (4) is spirally distributed on the upper surface of the blade individual (3), and the angle of inclination between the drainage groove (4) and the upper and lower edges of the blade individual (3) is sixty degrees.

3. The corrosion-resistant pump blade according to claim 1, characterized in that: The material of the additional coating (33) is exactly the same as that of the blade body (31). The additional coating (33) is formed by spraying it onto the outer surface of the isolation coating (32) in a molten state. The thickness of the additional coating (33) is 5 mm.

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