CN201507477U - A partial emission pump vane with a novel structure, a high lift and an ultralow specific speed - Google Patents
A partial emission pump vane with a novel structure, a high lift and an ultralow specific speed Download PDFInfo
- Publication number
- CN201507477U CN201507477U CN2009202090613U CN200920209061U CN201507477U CN 201507477 U CN201507477 U CN 201507477U CN 2009202090613 U CN2009202090613 U CN 2009202090613U CN 200920209061 U CN200920209061 U CN 200920209061U CN 201507477 U CN201507477 U CN 201507477U
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- blades
- vane
- impeller
- blade
- distortion
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Abstract
The utility model relates to a partial emission pump vane with a novel structure, a high lift and an ultralow specific speed, which comprises a rear cover plate for the vane and is characterized in that: the rear cover plate for the vane is provided with a plurality of blades, the blades are evenly distributed at the rear cover plate for the vanes, there are two groups of blades, the blades at the edge of the rear cover plate are cylinder straight blades, and the inner side is a distortion blade. and the partial emission pump vane with a novel structure is characterized in that: the distortion blade is in an arc shape, and all the distortion blades are distorted with same direction. The utility model has the advantages that on the one hand because the novel vane has the distortion blades, the flow channel between the adjacent blades is longer, the flow channel diffuses slowly, the loss is small, and the efficiency of the pump is higher. On the other hand because the flow channel between the adjacent blades is longer, the liquid flow motion speed changes slowly, and the energy converts slowly, the impact to the vane body is small, the service life of the vane is longer, and the pump can stably and reliably operate.
Description
Technical field
The utility model relates to a kind of high-lift Ultra-low Specific revolution partial emission pump impeller of partial emission pump impeller, particularly a kind of new structure.
Background technique
For traditional partial emission pump impeller, what generally adopt is the structural type (as shown in Figure 1) that layout is dispersed in the radiation of cylinder prismatic blade.This structural type is applicable to not very too low impeller of specific speed, but for the higher Ultra-low Specific revolution impeller of lift, its shortcoming is very obvious.Shortcoming one: high-lift Ultra-low Specific revolution impeller is because its impeller outer diameter is bigger, can cause between adjacent blades the runner diffusion too big if adopt traditional cylinder prismatic blade radiation to disperse layout, and the ratio of runner exit and inlet-duct area is excessive between adjacent blades, thereby make that the divergence loss of flowing is excessive, the efficient of pump is lower.Shortcoming two: because the impeller channel of this kind structural type is shorter, the liquid flow movement velocity variations is too fast, and transformation of energy is too fast, thereby brings certain impact for impeller itself, thereby the working life of impeller is shorter, and pump operation is also steady inadequately.
Summary of the invention:
The purpose of this utility model is to solve traditional existing the problems referred to above of partial emission pump impeller in the prior art, and a kind of high-lift Ultra-low Specific revolution partial emission pump impeller of new structure is provided.The utility model designs a kind of high-lift Ultra-low Specific revolution partial emission pump impeller of new structure, comprise back shroud of impeller, it is characterized in that: some blades are arranged at back shroud of impeller, blade is evenly distributed in back shroud of impeller, blade is made up of two ends, what be positioned at the back shroud of impeller edge is the cylinder prismatic blade, and inboard is twisted blade.It is characterized in that: twisted blade is an arc, the distortion in the same way of all twisted blades.The utility model has the advantages that this new impeller on the one hand because the existence of its twisted blade makes that runner is longer between adjacent blades, the runner diffusion is more slow, loses lessly, and the efficient of pump is higher.Owing to runner between adjacent blades is longer, the liquid flow movement velocity variations is slower on the other hand, and transformation of energy is more slow, thereby less to the impact of impeller itself, so the working life of impeller is longer, pump operation is steadily reliable.
Description of drawings:
Fig. 1 is the prior art constructions schematic representation,
Fig. 2 is a structural representation of the present utility model,
Below in conjunction with accompanying drawing and construction embodiment the utility model is made detailed operation instruction.
Embodiment:
Comprise back shroud of impeller 1 among the figure, it is characterized in that: at back shroud of impeller 1 some blades 2 are arranged, blade 2 is evenly distributed in back shroud of impeller 1, and blade 2 is made up of two ends, and what be positioned at back shroud of impeller 1 edge is cylinder prismatic blade 3, and inboard is twisted blade 4.It is characterized in that: twisted blade 4 is an arc, the distortion in the same way of all twisted blades 4.
This pattern impeller mainly comprises twisted blade 4, cylinder prismatic blade 3 and back shroud of impeller 1, and twisted blade 4 is near the center of impeller, and cylinder prismatic blade 3 is positioned at the edge of impeller, and twisted blade 4 and cylinder prismatic blade 3 are connected as a single entity, and a casting is on back shroud of impeller 1.With respect to traditional impeller structures, novel impeller blade is made up of twisted blade 4 and cylinder prismatic blade 3, and the new blade spread length that both are combined to form is long, thereby the runner between adjacent blades is long, the runner diffusion is less.
Claims (2)
1. the high-lift Ultra-low Specific revolution partial emission pump impeller of a new structure, comprise back shroud of impeller, it is characterized in that: some blades are arranged at back shroud of impeller, blade is evenly distributed in back shroud of impeller, blade is made up of two ends, what be positioned at the back shroud of impeller edge is the cylinder prismatic blade, and inboard is twisted blade.
2. by the high-lift Ultra-low Specific revolution partial emission pump impeller of the described a kind of new structure of claim 1, it is characterized in that: twisted blade is an arc, the distortion in the same way of all twisted blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090613U CN201507477U (en) | 2009-09-02 | 2009-09-02 | A partial emission pump vane with a novel structure, a high lift and an ultralow specific speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202090613U CN201507477U (en) | 2009-09-02 | 2009-09-02 | A partial emission pump vane with a novel structure, a high lift and an ultralow specific speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507477U true CN201507477U (en) | 2010-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202090613U Expired - Fee Related CN201507477U (en) | 2009-09-02 | 2009-09-02 | A partial emission pump vane with a novel structure, a high lift and an ultralow specific speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114356A (en) * | 2015-09-28 | 2015-12-02 | 湖南机油泵股份有限公司 | Centrifugal pump impeller |
-
2009
- 2009-09-02 CN CN2009202090613U patent/CN201507477U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114356A (en) * | 2015-09-28 | 2015-12-02 | 湖南机油泵股份有限公司 | Centrifugal pump impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20120902 |