CN207568928U - A kind of novel fractional centrifugation impeller of pump - Google Patents
A kind of novel fractional centrifugation impeller of pump Download PDFInfo
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- CN207568928U CN207568928U CN201721489734.6U CN201721489734U CN207568928U CN 207568928 U CN207568928 U CN 207568928U CN 201721489734 U CN201721489734 U CN 201721489734U CN 207568928 U CN207568928 U CN 207568928U
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- impeller
- pump
- outer ring
- inner ring
- ring blade
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Abstract
The utility model is related to a kind of novel fractional centrifugation impellers of pump, the novel fractional centrifugation pump is mainly made of inner ring blade (1), outer ring blade (2), front shroud of impeller (3), (4) four part of back shroud of impeller, is mainly characterized by：On the basis of original inner ring blade exit and outer ring vane inlet are tangent, it is changed to inner ring blade exit and respectively extends certain distance with outer ring vane inlet, it is possible to reduce the cavitation of impeller, and enable centrifugal pump stable operation.By improving the structure of centrifugal blade, centrifugal pump anti-cavitation performance is improved, and the service life of centrifugal pump and associated components can be extended.
Description
Technical field
The present invention relates to a kind of centrifugal pump impeller, particularly a kind of novel fractional centrifugation impeller of pump.
Background technology
Centrifugal pump is widely applied product in universal machine, applied to municipal sewage treatment, construction of water conservancy works, stone
The industries such as change, electric power, ship.With the rapid development of the industry such as aerospace, petrochemical industry, centrifugal pump is gradually to high speed, height
Pressure, efficient development, and with the diversification of pumped (conveying) medium, especially convey the row such as easy vaporized medium and liquefied gas at low temp
The continuous extension of industry, the application of centrifugal pump are also more extensive.Conventional centrifugal pump Hydraulic Design Method mainly has speed system method, similar
Model scaling method, increasing discharge method etc., the essence of above-mentioned Hydraulic Design Method be by total power in pump as a whole, and based on dynamic
Amount equation and energy equation are designed, and the variation of resultant couple is equal to the mechanical work of power-equipment consumption in the unit interval in pump
Rate is done work without the internal each component of separate blade pump.Centrifugal force and lift acting are to influence centrifugal pump waterpower effect inside centrifugal pump
The key factor of rate, conventional centrifugal pump Hydraulic Design Method is there is no resultant couple in pump is decomposed, i.e., when centrifugal pump leaf
It takes turns geometric parameter and includes impeller inlet diameter, impeller outlet diameter, impeller outlet width, impeller inlet laying angle, impeller outlet
In the case of laying angle and the number of blade are certain, the further promotion of efficiency of centrifugal pump can be limited.
There is provided herein a kind of novel fractional centrifugation impellers of pump, are protected on the basis of outlet section diffusion preventing blade vacuole
Efficiency of centrifugal pump is demonstrate,proved, and enables centrifugal pump stable operation.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of novel fractional centrifugation impellers of pump.On the basis of original impeller,
Segmentation transformation is carried out to blade：It is changed to inner ring blade exit and staggeredly extends distribution with outer ring vane inlet, blade can prevented
Vacuole ensures efficiency of centrifugal pump, and enable centrifugal pump stable operation on the basis of outlet section diffusion.
Technical solution is used by realizing above-mentioned purpose：
1st, the Internal and external cycle blade diameter of fractional centrifugation impeller of pump is improved, as shown in Figure 1：Fractional centrifugation impeller of pump
Inner ring blade diameter is 0.59~0.64 times of impeller outlet diameter, outer ring blade diameter for impeller inlet diameter 1.78~
1.84 times so that the extension distribution of Internal and external cycle blade stagger.
2nd, novel fractional centrifugation impeller of pump Internal and external cycle vane thickness is improved, as shown in Figure 1：Fractional centrifugation impeller of pump
Inner ring blade interior thickness be 1.03~1.08 times of thickness at inner ring vane inlet, outer ring blade interior thickness is outer ring leaf
1.88~1.94 times of piece entrance thickness, Internal and external cycle blade number take 3.
3rd, as shown in Figure 1：The inner ring leaf packet angle value of fractional centrifugation impeller of pump takes 41 °~44 °, and outer ring leaf packet angle value takes
68 °~71 °, angular interval takes 58 °~62 ° between inner ring blade and outer ring blade.
According to above-mentioned steps, a kind of novel fractional centrifugation impeller of pump design method can be obtained.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is the plan view of novel fractional centrifugation impeller of pump.
Fig. 2 is novel fractional centrifugation impeller of pump axial plane figure.
In figure：(1) inner ring blade, (2) outer ring blade, (3) front shroud of impeller, (4) back shroud of impeller
Specific embodiment
The present invention mainly ensures efficiency of centrifugal pump to the change of centrifugal pump impeller structure, and centrifugal pump is enable to stablize fortune
Row..
This embodiment is on the basis of original impeller, and segmentation improvement is carried out to blade：
Fig. 1 and Fig. 2 combination define the present embodiment：
1st, the Internal and external cycle blade diameter of fractional centrifugation impeller of pump is improved, as shown in Figure 1：Fractional centrifugation impeller of pump
Inner ring blade diameter is changed to 0.59~0.64 times of impeller outlet diameter, and outer ring blade diameter is changed to the 1.78 of impeller inlet diameter
~1.84 times so that the extension distribution of Internal and external cycle blade stagger.
2nd, novel fractional centrifugation impeller of pump Internal and external cycle vane thickness is improved, as shown in Figure 1：Fractional centrifugation impeller of pump
Inner ring blade interior thickness be 1.03~1.08 times of thickness at inner ring vane inlet, outer ring blade interior thickness is outer ring leaf
1.88~1.94 times of piece entrance thickness, Internal and external cycle blade is all thin using input end, and vane thickness is in gradually line to the port of export
Property increase.
3rd, as shown in Figure 1：The inner ring leaf packet angle value of fractional centrifugation impeller of pump takes 41 °~44 °, and outer ring leaf packet angle value takes
68 °~71 °, angular interval α ' takes 58 °~62 ° between inner ring blade and outer ring blade.
Claims (4)
1. a kind of novel fractional centrifugation impeller of pump, the novel fractional centrifugation pump is mainly by inner ring blade (1), outer ring blade (2), leaf
Front shroud (3), (4) four part of back shroud of impeller composition are taken turns, is mainly characterized by：In original inner ring blade exit and outer ring blade
On the basis of import is tangent, it is changed to inner ring blade exit and respectively extends certain distance with outer ring vane inlet, it is possible to reduce impeller
Cavitation, and enable centrifugal pump stable operation.
2. novel fractional centrifugation impeller of pump according to claim 1, it is characterized in that：The inner ring blade of fractional centrifugation impeller of pump
0.59~0.64 times of a diameter of impeller outlet diameter, outer ring blade diameter are 1.78~1.84 times of impeller inlet diameter.
3. novel fractional centrifugation impeller of pump according to claim 1, it is characterized in that：The inner ring blade of fractional centrifugation impeller of pump
Interior thickness is 1.03~1.08 times of thickness at inner ring vane inlet, and outer ring blade interior thickness is thick at the vane inlet of outer ring
1.88~1.94 times of degree.
4. novel fractional centrifugation impeller of pump according to claim 1, it is characterized in that：The inner ring blade of fractional centrifugation impeller of pump
Corner value takes 41 °~44 °, and outer ring leaf packet angle value takes 68 °~71 °, and angular interval α ' takes 58 ° between inner ring blade and outer ring blade
~62 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721489734.6U CN207568928U (en) | 2017-11-10 | 2017-11-10 | A kind of novel fractional centrifugation impeller of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721489734.6U CN207568928U (en) | 2017-11-10 | 2017-11-10 | A kind of novel fractional centrifugation impeller of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207568928U true CN207568928U (en) | 2018-07-03 |
Family
ID=62693086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721489734.6U Expired - Fee Related CN207568928U (en) | 2017-11-10 | 2017-11-10 | A kind of novel fractional centrifugation impeller of pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207568928U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209987A (en) * | 2018-11-13 | 2019-01-15 | 兰州理工大学 | A kind of anti-cavitation centrifugal pump impeller and centrifugal pump |
| CN114260492A (en) * | 2021-12-21 | 2022-04-01 | 安徽莱恩电泵有限公司 | Closed impeller cutting method of self-priming pump |
-
2017
- 2017-11-10 CN CN201721489734.6U patent/CN207568928U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209987A (en) * | 2018-11-13 | 2019-01-15 | 兰州理工大学 | A kind of anti-cavitation centrifugal pump impeller and centrifugal pump |
| CN109209987B (en) * | 2018-11-13 | 2019-06-25 | 兰州理工大学 | A kind of anti-cavitation centrifugal pump impeller and centrifugal pump |
| CN114260492A (en) * | 2021-12-21 | 2022-04-01 | 安徽莱恩电泵有限公司 | Closed impeller cutting method of self-priming pump |
| CN114260492B (en) * | 2021-12-21 | 2024-04-09 | 安徽莱恩电泵有限公司 | Closed impeller cutting method of self-priming 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: 20180703 Termination date: 20181110 |