CN210686420U - Wing section centrifugal pump impeller - Google Patents
Wing section centrifugal pump impeller Download PDFInfo
- Publication number
- CN210686420U CN210686420U CN201921670182.8U CN201921670182U CN210686420U CN 210686420 U CN210686420 U CN 210686420U CN 201921670182 U CN201921670182 U CN 201921670182U CN 210686420 U CN210686420 U CN 210686420U
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- cover plate
- impeller
- blade
- blades
- centrifugal pump
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Abstract
The utility model provides a wing section centrifugal pump impeller, include by the front shroud, the impeller body that back shroud and a plurality of blades of fixed mounting between front shroud and back shroud constitute, the front shroud includes front shroud top surface and front shroud bottom surface, it crosses the water hole to link up the front shroud at the middle part of front shroud top surface and front shroud bottom surface, the back shroud includes back shroud top surface and back shroud bottom surface, it crosses the water hole to link up the back shroud at the middle part of back shroud top surface and back shroud bottom surface, the balancing hole that a plurality of discharge high-pressure liquid established has still been seted up on the back shroud. The blade compares this design blade impeller and can produce higher lift and has increased the fluid flow way than traditional straight blade impeller in this design, and the fluid diffusivity reduces, and the positive and negative pressure of blade reduces simultaneously, and the fluid flow velocity distribution is even in the fluid flow way that forms between 2 adjacent blades, prevents the production of boundary layer separation and desludging to a certain extent, and its structural design is reasonable.
Description
Technical Field
The utility model belongs to the technical field of the centrifugal pump, a special design wing section centrifugal pump impeller.
Background
The vane type centrifugal pump realizes the extraction of liquid by the centrifugal force formed when the impeller rotates at high speed, and mainly comprises a suction chamber, an impeller, an extrusion chamber and the like, the centrifugal pumps with different structures have larger difference in working performance, the centrifugal pump is mainly used in the fields of agricultural irrigation drainage, water regulation, sewage treatment, thermal power plants and the like, mechanical loss and hydraulic loss caused by impact, flow separation, rapid change of speed direction and the like are inevitable in the process of converting mechanical energy into liquid energy, so that the instability of fluid flow and the waste of energy are caused, the impeller is used as an overflowing part for converting energy, the performance of the centrifugal pump is determined to a great extent by the superiority and inferiority of the design, and a novel vane type centrifugal pump impeller is provided.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to prior art not enough, provides wing section centrifugal pump impeller.
The technical problem to be solved by the utility model is realized by the following technical proposal, which comprises an impeller body consisting of a front cover plate, a rear cover plate and a plurality of blades fixedly arranged between the front cover plate and the rear cover plate;
the front cover plate comprises a front cover plate top surface and a front cover plate bottom surface, and front cover plate water through holes are communicated in the middle of the front cover plate top surface and the front cover plate bottom surface;
the rear cover plate comprises a rear cover plate top surface and a rear cover plate bottom surface, rear cover plate water through holes are communicated in the middle of the rear cover plate top surface and the rear cover plate bottom surface, and a plurality of balance holes for discharging high-pressure liquid are formed in the rear cover plate;
the blade is formed by fixedly installing the front end part of the blade and the rear end part of the blade, namely 2 arc-shaped sheet body end parts with arc-shaped cross sections, and the middle part of the front end part of the blade is also provided with a liquid circulation hole.
The utility model discloses the technical problem that solve can also realize through following technical scheme, above airfoil centrifugal pump impeller, the balancing hole seted up 5, the interval in adjacent 2 balancing holes is the same.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above airfoil centrifugal pump impeller, the balancing hole be located on the back shroud, between the blade rear end of 2 adjacent blades.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above airfoil centrifugal pump impeller, the blade be provided with 6, the interval of 2 adjacent blades is the same.
The utility model discloses the technical problem that solve can also be realized through following technical scheme, above airfoil centrifugal pump impeller, the transversal rectangle form setting of personally submitting of liquid circulation hole.
Compared with the prior art, the utility model has the advantages that: the blade designs into "S" type and constitutes by 2 arc lamellar body tip fixed mounting that the cross section personally submits circular-arc setting promptly, compares this design blade impeller and can produce higher lift and increase the fluid flow channel than traditional straight blade impeller, and the fluid diffusivity reduces, and the positive and negative pressure of blade reduces simultaneously, and between 2 adjacent blades
The flow velocity distribution of the fluid in the fluid flow channel formed among the blades is uniform, the generation of boundary layer separation and defluidization is prevented to a certain extent, when the impeller rotates, the fluid filled in the impeller is thrown to the periphery of the impeller along the adjacent 2 blades at the front end parts of the blades of the impeller under the action of centrifugal force, and the pressure and the speed are simultaneously increased due to the action of the blades, so that a forward axial force is generated; during the period, part of high-pressure liquid reflows to the impeller through the balance hole again to play a role in reflowing; the liquid circulation holes on the blades enable the blades to be communicated with each other, and the viscous force of the fluid is utilized to act on the fluid for transportation, so that the design can be suitable for transportation of fluid media with higher viscosity; traditional straight blade impeller can produce higher lift than the back bend type blade impeller under the same condition, and simultaneously, the suction performance of traditional straight blade impeller entry is relatively poor, if increase the inducer, then the structure of making the pump is complicated.
Drawings
Fig. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention after installation;
fig. 3 is a schematic structural diagram of the blade of the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.
the front cover plate 1 comprises a front cover plate top surface 4 and a front cover plate bottom surface 5, and a front cover plate water through hole 6 is penetrated in the middle of the front cover plate top surface 4 and the front cover plate bottom surface 5;
the rear cover plate 2 comprises a rear cover plate top surface 7 and a rear cover plate bottom surface 8, a rear cover plate water through hole 9 is communicated between the rear cover plate top surface 7 and the rear cover plate bottom surface 8, and a plurality of balance holes 10 for discharging high-pressure liquid are also formed in the rear cover plate 2;
the blade 3 is formed by fixedly installing the front end part of the blade and the rear end part of the blade, namely 2 arc-shaped sheet body end parts with arc-shaped cross sections, and the middle part of the front end part of the blade 3 is also provided with a liquid circulation hole 11. The cross section of the front cover plate 1 is arranged in a circular ring shape; the cross section of the rear cover plate 2 is arranged in a circular ring shape; the blade 3 is "S" shape promptly, is 2 contours promptly and is circular-arc lamellar bodies and forms through the smooth connection of circular arc, and the front and back terminal surface of 2 circular arc lamellar bodies is the same with the circular arc radius of blade tip before and blade tip.
In the impeller of the airfoil centrifugal pump in embodiment 2 or 1, the balance holes 10 are provided with 5 holes, and the distances between the adjacent 2 balance holes 10 are the same.
Embodiment 4 is the impeller of the centrifugal pump having the airfoil according to embodiment 1, wherein 6 blades 3 are provided, and the distances between the adjacent 2 blades 3 are the same.
In the vane wheel of the centrifugal pump according to embodiment 5 or 1, the liquid flow holes 11 are formed in a rectangular shape in cross section.
When the wing-type centrifugal pump impeller is used, fluid media enter the impeller and then do rotary motion, the fluid media filled in the impeller are thrown to the periphery of the impeller along the space between 2 adjacent blades 3 at the front end part of the blade of the impeller, namely fluid flow channels, under the action of the blades 3, the pressure and the speed are simultaneously increased, a forward axial force is generated, during the period, part of high-pressure liquid reflows to the impeller again through the balance holes 10 to play a backflow role, the fluid flow channels between the 2 adjacent blades 3 are mutually communicated through the liquid circulation holes 11 positioned on the blades 3, the viscous force of the fluid acts on the fluid to carry out transportation, the design can be suitable for the transportation of the fluid media with higher viscosity, during the period, after water flows enter the flow channels formed between the 2 adjacent blades 3, the forward axial force is generated due to the action of the centrifugal force, axial force's existence can produce axial float, aggravate bearing wear and reduce the life-span of pump, can cross the water hole 9 inner wall at the back shroud and seted up the keyway during installation and can be connected with the pump, should set up to the conventional mounting means of centrifugal pump among the prior art so the installation method about the impeller in this design is no longer repeated here, the design of balancing hole 10 makes partial high-pressure fluid flow to the impeller again through balancing hole 10 in, thereby reduce pressure differential and played the effect of balanced axial force, its structural design is reasonable.
Claims (5)
1. An airfoil centrifugal pump impeller characterized in that: the impeller comprises an impeller body consisting of a front cover plate, a rear cover plate and a plurality of blades fixedly arranged between the front cover plate and the rear cover plate;
the front cover plate comprises a front cover plate top surface and a front cover plate bottom surface, and front cover plate water through holes are communicated in the middle of the front cover plate top surface and the front cover plate bottom surface;
the rear cover plate comprises a rear cover plate top surface and a rear cover plate bottom surface, rear cover plate water through holes are communicated in the middle of the rear cover plate top surface and the rear cover plate bottom surface, and a plurality of balance holes for discharging high-pressure liquid are formed in the rear cover plate;
the blade is formed by fixedly installing the front end part of the blade and the rear end part of the blade, namely 2 arc-shaped sheet body end parts with arc-shaped cross sections, and the middle part of the front end part of the blade is also provided with a liquid circulation hole.
2. The airfoil centrifugal pump impeller of claim 1, wherein: the balancing holes are provided with 5 balancing holes, and the distance between every two adjacent balancing holes is the same.
3. The airfoil centrifugal pump impeller of claim 1, wherein: the balance holes are positioned on the rear cover plate and between the rear end parts of the blades of the adjacent 2 blades.
4. The airfoil centrifugal pump impeller of claim 1, wherein: the blades are provided with 6 blades, and the distance between every two adjacent blades is the same.
5. The airfoil centrifugal pump impeller of claim 1, wherein: the cross section of the liquid circulation hole is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670182.8U CN210686420U (en) | 2019-10-08 | 2019-10-08 | Wing section centrifugal pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921670182.8U CN210686420U (en) | 2019-10-08 | 2019-10-08 | Wing section centrifugal pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686420U true CN210686420U (en) | 2020-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921670182.8U Expired - Fee Related CN210686420U (en) | 2019-10-08 | 2019-10-08 | Wing section centrifugal pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049804A (en) * | 2020-07-25 | 2020-12-08 | 三联泵业股份有限公司 | Wear-resistant corrosion-resistant rubber-lined slurry pump |
| CN113294342A (en) * | 2021-06-30 | 2021-08-24 | 西安航空学院 | Centrifugal pump |
-
2019
- 2019-10-08 CN CN201921670182.8U patent/CN210686420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049804A (en) * | 2020-07-25 | 2020-12-08 | 三联泵业股份有限公司 | Wear-resistant corrosion-resistant rubber-lined slurry pump |
| CN113294342A (en) * | 2021-06-30 | 2021-08-24 | 西安航空学院 | Centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20211008 |