CN202100536U - Prerotation rectifying device - Google Patents
Prerotation rectifying device Download PDFInfo
- Publication number
- CN202100536U CN202100536U CN2011201604049U CN201120160404U CN202100536U CN 202100536 U CN202100536 U CN 202100536U CN 2011201604049 U CN2011201604049 U CN 2011201604049U CN 201120160404 U CN201120160404 U CN 201120160404U CN 202100536 U CN202100536 U CN 202100536U
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- CN
- China
- Prior art keywords
- water pump
- pipe
- rectifying device
- rectifying
- prerotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 32
- 230000008676 import Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A prerotation rectifying device belongs to the pump valve field, and comprises a pipe (1), rectifying sheets (2), positioners (3) and flanges (4), wherein, the flanges (4) are arranged at the two ends of the pipe (1); and a plurality of rectifying sheets (2) are arranged on the inner wall of the pipe (1) in the circumference direction through the positioners (3). The prerotation rectifying device is mainly mounted in a suction pipe in front of an inlet of a water pump so as to improve the anti-cavitation performance of the water pump, adjust the angle of the rectifying sheets and broaden the effective operation range of the water pump when the water pump works away from the working condition area.
Description
Technical field:
The utility model relates to the pump valve field, relates in particular to a kind of rectifying device of prewhirling.
Background technique:
In the water pump site of deployment; Often running into water pump actual operating mode point is not the design point of water pump, so water pump is in the work of off-design point, or work under big flow; Or work under small flow; In this case, impeller blade import laying angle does not wait with relative flow angle and causes the water hammer loss, thereby reduces pump efficiency.
The model utility content:
The purpose of the utility model provides a kind of rectifying device of prewhirling; It mainly is mounted in the suction pipeline section before the water pump import, can improve the anti-cavitation performance of water pump, and when water pump departs from the operation of operating mode district; Regulate the angle of commutator lug, can widen the efficient range of operation of water pump.
In order to solve the existing problem of background technique; The utility model is to adopt following technological scheme: it comprises pipe 1; It also comprises commutator lug 2, positioning work piece 3 and flange 4, and the two ends of pipe 1 are provided with flange 4, and pipe 1 inwall circumferencial direction is provided with several commutator lugs 2 through positioning work piece 3.
Described commutator lug 2 is fan-shaped.
Be provided with the O RunddichtringO in the described positioning work piece 3.
The flange 4 at pipe 1 two ends links to each other with water pump 6 with suction pipe 5 respectively in the utility model, and water pump 6 links to each other with motor 8 with discharge pipe 7, and the utility model is arranged in the water pump suction pipe highway section; When pump working during at large-capacity point; Regulate commutator lug and suction pipe direction clockwise and form several angle, incoming flow produces the flow that turns clockwise through behind the commutator lug; Be consistent with impeller inlet blade sense of rotation; After liquid gets into impeller, can reduce import water hammer loss, improve the suction performance of water pump; When pump working during at lower-capacity point, to regulate straightener(stator) blade and suction pipe direction counterclockwise and form several angle, incoming flow is through behind the straightener(stator) blade; Generation is rotated counterclockwise flow; Opposite with impeller inlet blade sense of rotation, improve impeller inlet secondary back phenomenon, widen the operational efficiency of water pump.
The utility model mainly is mounted in the suction pipeline section before the water pump import, can improve the anti-cavitation performance of water pump, and when water pump departed from the operation of operating mode district, the angle of regulating commutator lug can be widened the efficient range of operation of water pump.
Description of drawings:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the mounting structure schematic representation of the utility model.
Embodiment:
With reference to Fig. 1-2, this embodiment adopts following technological scheme: it comprises pipe 1, and it also comprises commutator lug 2, positioning work piece 3 and flange 4, and the two ends of pipe 1 are provided with flange 4, and pipe 1 inwall circumferencial direction is provided with several commutator lugs 2 through positioning work piece 3.
Described commutator lug 2 is fan-shaped.
Be provided with the O RunddichtringO in the described positioning work piece 3, the pressured fluid in preventing to manage is excessive.
The flange 4 at pipe 1 two ends links to each other with water pump 6 with suction pipe 5 respectively in this embodiment, and water pump 6 links to each other with motor 8 with discharge pipe 7, and the utility model is arranged in the water pump suction pipe highway section; When pump working during at large-capacity point; Regulate commutator lug and suction pipe direction clockwise and form several angle, incoming flow produces the flow that turns clockwise through behind the commutator lug; Be consistent with impeller inlet blade sense of rotation; After liquid gets into impeller, can reduce import water hammer loss, improve the suction performance of water pump; When pump working during at lower-capacity point, to regulate straightener(stator) blade and suction pipe direction counterclockwise and form several angle, incoming flow is through behind the straightener(stator) blade; Generation is rotated counterclockwise flow; Opposite with impeller inlet blade sense of rotation, improve impeller inlet secondary back phenomenon, widen the operational efficiency of water pump.
This embodiment can improve the anti-cavitation performance of water pump, and when water pump departed from the operation of operating mode district, the angle of regulating commutator lug can be widened the efficient range of operation of water pump.
Claims (3)
1. the rectifying device of prewhirling, it comprises pipe (1), it is characterized in that it also comprises commutator lug (2), positioning work piece (3) and flange (4), and the two ends of pipe (1) are provided with flange (4), and pipe (1) inwall circumferencial direction is provided with several commutator lugs (2) through positioning work piece (3).
2. the rectifying device of prewhirling according to claim 1 is characterized in that described commutator lug (2) is for fan-shaped.
3. the rectifying device of prewhirling according to claim 1 is characterized in that being provided with the O RunddichtringO in the described positioning work piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201604049U CN202100536U (en) | 2011-05-19 | 2011-05-19 | Prerotation rectifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201604049U CN202100536U (en) | 2011-05-19 | 2011-05-19 | Prerotation rectifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100536U true CN202100536U (en) | 2012-01-04 |
Family
ID=45386551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201604049U Expired - Fee Related CN202100536U (en) | 2011-05-19 | 2011-05-19 | Prerotation rectifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100536U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133404A (en) * | 2013-03-07 | 2013-06-05 | 江苏大学 | Structural design of pump with front preswirl plate of inducer having long and short vanes |
| CN109915418A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A vane forward-extending vertical centrifugal pump guide grille and centrifugal pump using the guide grille |
| CN114962337A (en) * | 2022-06-17 | 2022-08-30 | 上海凯泉泵业（集团）有限公司 | Sinking type inlet guide vane for vertical centrifugal pump |
-
2011
- 2011-05-19 CN CN2011201604049U patent/CN202100536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133404A (en) * | 2013-03-07 | 2013-06-05 | 江苏大学 | Structural design of pump with front preswirl plate of inducer having long and short vanes |
| CN109915418A (en) * | 2019-03-18 | 2019-06-21 | 江苏大学 | A vane forward-extending vertical centrifugal pump guide grille and centrifugal pump using the guide grille |
| CN114962337A (en) * | 2022-06-17 | 2022-08-30 | 上海凯泉泵业（集团）有限公司 | Sinking type inlet guide vane for vertical centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Richen Environmental Technology Co., Ltd. Assignor: Chen Zhaofeng Contract record no.: 2013320010146 Denomination of utility model: Prerotation rectifying device Granted publication date: 20120104 License type: Exclusive License Record date: 20130909 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20160519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |