CN202348683U - Vertical multi-stage pump - Google Patents
Vertical multi-stage pump Download PDFInfo
- Publication number
- CN202348683U CN202348683U CN2011205144203U CN201120514420U CN202348683U CN 202348683 U CN202348683 U CN 202348683U CN 2011205144203 U CN2011205144203 U CN 2011205144203U CN 201120514420 U CN201120514420 U CN 201120514420U CN 202348683 U CN202348683 U CN 202348683U
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- model
- utility
- sliding bearing
- impeller
- stage pump
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- Expired - Fee Related
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Abstract
The utility model discloses a vertical multi-stage pump, which comprises middle sections, guide vanes, impellers, a sliding bearing pair and a backpitch depressurization gland cover, wherein runners of the middle sections are of symmetrical reverse double-volute chamber structures; each impeller is provided with back vanes for balancing axial thrust; and the sliding bearing pair is made of hard alloy. According to the vertical multi-stage pump disclosed by the utility model, the integrated design of the middle sections and the guide vanes is realized, and the pressure of a mechanical seal cavity is reduced. The vertical multi-stage pump is light, is easy to deform and is low is energy consumption.
Description
Technical field
The utility model relates to a kind of multistage pump, is specifically related to a kind of MODEL VERTICAL MULTISTAGE PUMP.
Background technique
MODEL VERTICAL MULTISTAGE PUMP is a kind of conventional machinery equipment in high building fire-fighting or the water supply equipment, and high building fire-fighting at present, the problem that exists with pump that supplies water mainly are that pump housing volume is big, energy consumption is high; Impeller can not cut modification, has only by changing progression to change lift; Balancing drum in the MODEL VERTICAL MULTISTAGE PUMP also is easy to occur operational failure.
The model utility content
The utility model provides a kind of MODEL VERTICAL MULTISTAGE PUMP to the deficiency of existing technology.
For solving above-mentioned technical problem, the utility model adopts following technological scheme:
A kind of MODEL VERTICAL MULTISTAGE PUMP comprises stage casing, stator, impeller and sliding bearing pair, and the runner in said stage casing is the two volute chamber structures of symmetrical reverse, and said stage casing and said stator are one-body molded, and the back blade of balancing axial thrust is arranged on the said impeller.
Further technological scheme is that said sliding bearing auxiliary material is a cemented carbide.
Further technological scheme is also to comprise backpitch step-down stuffing box gland.
Compared with prior art, the beneficial effect of the utility model is:
(1) runner in the stage casing of the utility model is that the two volute chamber structures of symmetrical reverse not only can the balance radial force, and has avoided MODEL VERTICAL MULTISTAGE PUMP stator casting difficulty, has realized stage casing stator integrated design.
(2) impeller of the utility model can change lift through the cutting impeller external diameter; Avoid MODEL VERTICAL MULTISTAGE PUMP to have only and become the single means that progression changes lift; And the back blade on the impeller can come balancing axial thrust, does not have the balancing drum that occurs operational failure in the common MODEL VERTICAL MULTISTAGE PUMP easily.
(3) sliding bearing pair of the utility model is a Hardmetal materials, is suitable for running up.
(4) the backpitch step-down stuffing box gland of the utility model can reduce the pressure in mechanical seal chamber.
(5) the utlity model has light, the easy modification of pump, advantage of low energy consumption.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the utility model stage casing stator schematic representation.
Fig. 3 is the structural representation of the utility model impeller.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further, but the mode of execution of the utility model is not limited thereto.
Embodiment 1
Like Fig. 1, Fig. 2 and shown in Figure 3; A kind of MODEL VERTICAL MULTISTAGE PUMP; Comprise stage casing 1, stator, sliding bearing pair 3 and backpitch step-down stuffing box gland 4, the runner in said stage casing 1 is the two volute chamber structures of symmetrical reverse, and said stage casing 1 is one-body molded with said stator; The back blade 5 that balancing axial thrust is arranged on the impeller 2 of said stator, said sliding bearing pair 3 materials are cemented carbide.
The turn up 2900r/min of impeller, pump general structure volume be 1450r/min the lowspeed pump structure 80%, pump efficiency is high by 5% than stator.
Embodiment 2
Like Fig. 1, Fig. 2 and shown in Figure 3; A kind of MODEL VERTICAL MULTISTAGE PUMP; Comprise stage casing 1, stator, sliding bearing pair 3 and backpitch step-down stuffing box gland 4, the runner in said stage casing 1 is the two volute chamber structures of symmetrical reverse, and said stage casing 1 is one-body molded with said stator; The back blade 5 that balancing axial thrust is arranged on the impeller 2 of said stator, said sliding bearing pair 3 materials are cemented carbide.
The turn up 2800r/min of impeller, pump general structure volume be 1450r/min the lowspeed pump structure 70%, pump efficiency is high by 3% than stator.
Claims (3)
1. MODEL VERTICAL MULTISTAGE PUMP; Comprise stage casing (1), stator, impeller (2) and sliding bearing pair (3); The runner in said stage casing (1) is the two volute chamber structures of symmetrical reverse, and said stage casing (1) is one-body molded with said stator, and the back blade (5) of balancing axial thrust is arranged on the said impeller (2).
2. a kind of MODEL VERTICAL MULTISTAGE PUMP according to claim 1 is characterized in that: said sliding bearing pair (3) material is a cemented carbide.
3. a kind of MODEL VERTICAL MULTISTAGE PUMP according to claim 1 is characterized in that: also comprise backpitch step-down stuffing box gland (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205144203U CN202348683U (en) | 2011-12-12 | 2011-12-12 | Vertical multi-stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205144203U CN202348683U (en) | 2011-12-12 | 2011-12-12 | Vertical multi-stage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348683U true CN202348683U (en) | 2012-07-25 |
Family
ID=46537691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205144203U Expired - Fee Related CN202348683U (en) | 2011-12-12 | 2011-12-12 | Vertical multi-stage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121203A (en) * | 2014-07-14 | 2014-10-29 | 杨丽萍 | Single-section structure of sectional-type multi-stage pump for sewage |
| CN105221437A (en) * | 2015-11-11 | 2016-01-06 | 苏州邦普赛司流体工程有限公司 | A kind of novel horizontal Multi-stage spiral pump |
-
2011
- 2011-12-12 CN CN2011205144203U patent/CN202348683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121203A (en) * | 2014-07-14 | 2014-10-29 | 杨丽萍 | Single-section structure of sectional-type multi-stage pump for sewage |
| CN105221437A (en) * | 2015-11-11 | 2016-01-06 | 苏州邦普赛司流体工程有限公司 | A kind of novel horizontal Multi-stage spiral pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |