CN216241470U - Wear-resistant corrosion-resistant high-performance impeller - Google Patents
Wear-resistant corrosion-resistant high-performance impeller Download PDFInfo
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- CN216241470U CN216241470U CN202121910158.4U CN202121910158U CN216241470U CN 216241470 U CN216241470 U CN 216241470U CN 202121910158 U CN202121910158 U CN 202121910158U CN 216241470 U CN216241470 U CN 216241470U
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- impeller
- cover plate
- front cover
- blades
- impeller hub
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Abstract
The utility model discloses a wear-resistant corrosion-resistant high-performance impeller, which comprises an impeller hub, wherein an axial circular through hole is formed in the impeller hub, and a key groove connected with a shaft key is formed in the wall of the circular through hole; the impeller is characterized in that a reverse thread water tank is arranged on the outer ring of the impeller hub, short blades and long blades are arranged on the inner side of the front cover plate in a staggered mode, one side of each long blade is connected with the front cover plate, the other side of each long blade is connected with the impeller hub, the diameter of the impeller hub is smaller than that of the front cover plate, and the short blades are connected with the front cover plate; auxiliary blades are arranged on the outer side surface of the front cover plate; the utility model has reasonable design, reduces the inlet resistance loss, improves the hydraulic efficiency and the cavitation resistance, reduces the pressure of the inner seal cavity, and simultaneously improves the lift of the pump.
Description
Technical Field
The utility model relates to the technical field of pumps, in particular to a wear-resistant corrosion-resistant high-performance impeller.
Background
The impeller is a core part of the pump and is a main influencer of the working efficiency; the impeller can be classified according to the shape and the opening and closing conditions, and the impeller is generally of an open type (only provided with blades), a closed type (a front cover plate and a rear cover plate clamp the blades in the middle) and a semi-open type (only one cover plate is combined with the blades). The efficiency of a closed impeller is high generally, but the traditional closed impeller and the traditional open impeller are easy to block and have poor suction lift, when a medium containing crystals is conveyed, the normal and ordered flow of liquid is influenced by the partial blockage of a flow passage, the unbalanced state of a rotor exceeds an allowable value, and a shaft seal and a bearing can fail prematurely. When the impeller rotates, the axial pressure is very high, and the shaft seal and the bearing are easily damaged due to the huge axial pressure; meanwhile, due to the high-speed and high-temperature washing with slurry, the surface material of the impeller is seriously abraded, and under the harsh working condition, the service life of the impeller is very short, and the impeller needs to be frequently replaced to ensure the reliable and stable operation of the pump; the high-speed rotation of the impeller drives the input medium to rotate at high speed, and high-speed vortex is generated, so that cavitation is generated, and therefore, the impeller with high performance of wear resistance and corrosion resistance is needed to be provided.
Disclosure of Invention
The utility model aims to solve the technical problems and provides a wear-resistant corrosion-resistant high-performance impeller.
In order to achieve the technical purpose and achieve the technical requirements, the utility model adopts the technical scheme that: the wear-resistant corrosion-resistant high-performance impeller comprises an impeller hub, wherein an axial circular through hole is formed in the impeller hub, and a key groove connected with a shaft key is formed in the wall of the circular through hole; the method is characterized in that: the impeller is characterized in that a reverse thread water tank is arranged on the outer ring of the impeller hub, short blades and long blades are arranged on the inner side of the front cover plate in a staggered mode, one side of each long blade is connected with the front cover plate, the other side of each long blade is connected with the impeller hub, the diameter of the impeller hub is smaller than that of the front cover plate, and the short blades are connected with the front cover plate; and auxiliary blades are arranged on the outer side surface of the front cover plate.
Preferably: the long blade, the short blade and the auxiliary blade are all arc-shaped sheet parts, and the bending directions are the same.
Preferably: and 6-8 auxiliary blades are uniformly distributed on the outer end face of the front cover plate.
Preferably: the number of the long blades and the number of the short blades are 2-4.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model adopts the wide flow passage wear-resistant and corrosion-resistant material for precision casting, thereby not only improving the wear-resistant and corrosion-resistant performance and prolonging the service life of the impeller, but also reducing the maintenance or replacement times of the impeller.
2. The axial force is balanced by the auxiliary blade on the front cover plate and the rear open type cover plate structure, and compared with the lift of a common pump body, the axial force is improved by about 5 percent.
3. Through the combined structure of the short blades and the long blades, the resistance loss of the impeller inlet is reduced, and the hydraulic efficiency and the cavitation resistance are improved.
4. Through set up the anti-thread basin in the wheel hub outer lane, the pump when operation, has reduced interior seal chamber body pressure.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic diagram of the right-view structure of the present invention;
in the figure: 1. an impeller hub; 2. a front cover plate; 3. a secondary blade; 4. short blades; 5. a long blade; 6. a circular through hole; 7. a keyway; 8. a reverse-threaded water tank.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
In the drawings: the wear-resistant corrosion-resistant high-performance impeller comprises an impeller hub 1, wherein an axial circular through hole 6 is formed in the impeller hub 1, and a key groove 7 connected with a shaft key is formed in the wall of the circular through hole 6; the method is characterized in that: the impeller is characterized in that a reverse thread water tank 8 is arranged on the outer ring of the impeller hub 1, short blades 4 and long blades 5 are arranged on the inner side of the front cover plate 2 in a staggered mode, one side of each long blade 5 is connected with the front cover plate 2, the other side of each long blade is connected with the impeller hub 1, the diameter of the impeller hub 1 is smaller than that of the front cover plate 2, and the short blades 4 are connected with the front cover plate 2; and auxiliary blades 3 are arranged on the outer side surface of the front cover plate 2.
In the preferred embodiment, the long blade 5, the short blade 4 and the auxiliary blade 3 are all arc-shaped sheet-shaped parts, and the bending directions are the same.
In the preferred embodiment, 6 to 8 auxiliary blades 3 are uniformly distributed on the outer end surface of the front cover plate 2.
In the preferred embodiment, the number of the long blades 5 and the number of the short blades 4 are 2-4.
When the pump runs, slurry enters between the long blades 5 and the short blades 4 and collides with the long blades 5, the short blades 4 are short in length, the slurry flows to the short blades 4 without barrier surfaces, and the slurry can circularly flow between the long blades 5 and the short blades 4, so that the resistance loss of the impeller is reduced, and the hydraulic efficiency and the cavitation resistance are improved; the outer end face of the front cover plate 2 is provided with an arc-shaped auxiliary blade 3, the bending direction of the auxiliary blade 3 is the same as that of the long blade 5 and the short blade 4, and the pump lift is improved; the reverse thread water tank is arranged on the outer ring of the impeller hub, so that the pressure of the inner sealing cavity is reduced, and the impeller is guaranteed to rotate stably.
The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, but not intended to limit the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (4)
1. The wear-resistant corrosion-resistant high-performance impeller comprises an impeller hub (1), wherein an axial circular through hole (6) is formed in the impeller hub (1), and a key groove (7) connected with a shaft key is formed in the wall of the circular through hole (6); the method is characterized in that: the impeller is characterized in that a reverse thread water tank (8) is arranged on the outer ring of the impeller hub (1), short blades (4) and long blades (5) are arranged on the inner side of the front cover plate (2) in a staggered mode, one side of each long blade (5) is connected with the front cover plate (2), the other side of each long blade is connected with the impeller hub (1), the diameter of the impeller hub (1) is smaller than that of the front cover plate (2), and the short blades (4) are connected with the front cover plate (2); and auxiliary blades (3) are arranged on the outer side surface of the front cover plate (2).
2. The impeller of claim 1, wherein: the long blade (5), the short blade (4) and the auxiliary blade (3) are all arc-shaped sheet parts, and the bending directions are the same.
3. The impeller of claim 1, wherein: the outer side surface of the front cover plate (2) is uniformly provided with 6-8 auxiliary blades (3).
4. A wear and corrosion resistant high performance impeller according to claim 1 or 2, characterized in that: the number of the long blades (5) and the number of the short blades (4) are respectively 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910158.4U CN216241470U (en) | 2021-08-16 | 2021-08-16 | Wear-resistant corrosion-resistant high-performance impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910158.4U CN216241470U (en) | 2021-08-16 | 2021-08-16 | Wear-resistant corrosion-resistant high-performance impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216241470U true CN216241470U (en) | 2022-04-08 |
Family
ID=80980980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121910158.4U Active CN216241470U (en) | 2021-08-16 | 2021-08-16 | Wear-resistant corrosion-resistant high-performance impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216241470U (en) |
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2021
- 2021-08-16 CN CN202121910158.4U patent/CN216241470U/en active Active
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