CN201351632Y - Impeller for double suction centrifugal pump - Google Patents
Impeller for double suction centrifugal pump Download PDFInfo
- Publication number
- CN201351632Y CN201351632Y CNU2009200364407U CN200920036440U CN201351632Y CN 201351632 Y CN201351632 Y CN 201351632Y CN U2009200364407 U CNU2009200364407 U CN U2009200364407U CN 200920036440 U CN200920036440 U CN 200920036440U CN 201351632 Y CN201351632 Y CN 201351632Y
- Authority
- CN
- China
- Prior art keywords
- import
- impeller
- inlet
- cover board
- vane
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an impeller and in particular relates to an impeller for a double suction centrifugal pump. According to the technical proposal of the utility model, the impeller comprises a left inlet front cover board, a left inlet rear cover board, a right inlet front cover board and a right inlet rear cover board. The left inlet rear cover board and the right inlet rear cover board are connected into a whole body. The impeller is characterized in that a left inlet long vane and a left inlet short vane are arranged between the left inlet front cover board and the left inlet rear cover board; the left inlet long vane and the left inlet short vane are in staggered arrangement; a right inlet long vane and a right inlet short vane are arranged between the right inlet front cover board and the right inlet rear cover board; the right inlet long vane and the right inlet short vane are in staggered arrangement; the left inlet long vane and the right inlet short vane are connected into a whole body; and the left inlet short vane and the right inlet long vane are connected into a whole body. The impeller has the advantages that the impeller can reduce refluence and the flow in the impeller can be distributed more and more evenly; and the impeller reduces energy difference and improves the flow condition, thereby improving the performance and the efficiency of the water pump.
Description
Technical field
The utility model relates to a kind of impeller, especially a kind of double-suction centrifugal pump pump impeller.
Background technique
Pump is the machine that the mechanical energy of prime mover is converted to the energy of liquid.Pump belongs to universal machine, uses very extensive.Centrifugal pump is to use the widest in the application of pump.Double-suction centrifugal pump belongs to a kind of of centrifugal pump, and its flow is big, and cavitation performance is good and be widely used in the bigger centrifugal pump.
External impeller and proposition of having developed many outstanding hydraulic performances already improves flowing state equilibrirm water active force with the layout of the water inlet both sides blade dislocation of double-entry impeller, improves performance and efficient with water pump.And the most of units of China are just imitated.
When double suction pump is big more, its impeller is just more near mixed-flow pump impeller.When the double suction pump impeller becomes the mixed-flow pump impeller shape, with the layout of the water inlet both sides blades dislocation of double-entry impeller, the phenomenon of " lacking " back shroud can appear at the both sides exit edge of blade.
Use the existing well application of single-suction centrifugal pump impeller for short blade.Short blade just makes, backside flow rate is tending towards equal; Water runner blade grid density increases, and has avoided producing in the runner influence that refluxes, and this is to improve hydraulic efficiency, reduction vibration; Sub load efficient improves, and promptly has the high efficient area of broad.
In the design of pump, gap design that impeller port ring is gone out all more not as the sliding bearing place.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of backflow that reduces is provided, and the interior Flow Distribution of impeller is tending towards evenly, reduces energy difference, improves the performance of water pump and the double-suction centrifugal pump pump impeller of efficient thereby improve flowing state.
The technological scheme that provides according to the utility model, this double-suction centrifugal pump pump impeller, comprise left import front shroud, left side import back shroud, right import front shroud and right import back shroud, left side import back shroud and right import back shroud are connected as a single entity, it is characterized in that: between left import front shroud and left import back shroud, be provided with left import linear leaf and left import short blade, a left side import linear leaf and left import short blade are and shift to install, between right import front shroud and right import back shroud, be provided with right import linear leaf and right import short blade, right import linear leaf and right import short blade are and shift to install, and left import linear leaf and right import short blade are connected as a single entity at the impeller outlet place, and left import short blade and right import linear leaf are connected as a single entity at the impeller outlet place.
The utlity model has and can reduce backflow, the interior Flow Distribution of impeller is tending towards evenly, thus advantages such as minimizing energy difference, the performance of improving flowing state raising water pump and efficient.
Description of drawings
Fig. 1 is a stereogram of the present utility model.
Fig. 2 is a plan view of the present utility model.
Fig. 3 is a right elevation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: parts such as left import front shroud 1, left import back shroud 2, right import front shroud 3, right import back shroud 4, left import linear leaf 5, left import short blade 6, right import linear leaf 7 and right import short blade 8 constitute.
This double-suction centrifugal pump pump impeller, comprise left import front shroud 1, left side import back shroud 2, right import front shroud 3 and right import back shroud 4, import back shroud 2 in a left side is connected as a single entity with right import back shroud 4, it is characterized in that: between left import front shroud 1 and left import back shroud 2, be provided with left import linear leaf 5 and left import short blade 6, left side import linear leaf 5 is with left import short blade 6 and shifts to install, between right import front shroud 3 and right import back shroud 4, be provided with right import linear leaf 7 and right import short blade 8, right import linear leaf 7 is with right import short blade 8 and shifts to install, and left import linear leaf 5 is connected as a single entity at the impeller outlet place with right import short blade 8, and left import short blade 6 is connected as a single entity at the impeller outlet place with right import linear leaf 7.
In the impeller that is applied to double-suction centrifugal pump that the blade that the utility model is separated by quantity length such as impeller water inlet both sides misplaces.(" lacking " back shroud) working surface joins in the outlet port with right import short blade 8 for left side import linear leaf 5; On the contrary, (" lacking " back shroud) working surface joins in the outlet port with right import linear leaf 7 for left import short blade 6.This vane collocation structure can be used in the impeller of all double-suction centrifugal pumps equally, and only deviated splitter vane has been separated by back shroud in the impeller that has.This structure combines the advantage of the layout of short blade and the dislocation of double-entry impeller blade, and difform deviated splitter vane is that reasonable change is joined simultaneously, can reduce backflow, makes the interior Flow Distribution of impeller be tending towards even little bump and mixes outflow.Improve flowing state, thereby improve the performance and the efficient of water pump; Propose the choma place in addition and can be used as sliding bearing, thereby reduce the choma gap, improve volumetric efficiency and simplify pump structure.
Left import linear leaf 5, left import short blade 6 and the right import linear leaf 7 that impeller left side quantity equal shape is different, right import short blade 8 be circle distribution at interval, angle=360 that the angle that left import linear leaf is 5=left import short blade is 6 °/left side linear leaf number.Right import short blade 8 that same impeller right side quantity equal shape is different and right import linear leaf 7 be circle distribution at interval, angle=360 that the adjacent right import linear leaf in angle=right side that the adjacent left import linear leaf in left side is 5 is 7 °/right side linear leaf number.Impeller left side import linear leaf 5 and right import linear leaf 7 quantity equate, and left import linear leaf 5 is connected at impeller outlet (" lacking " back shroud) median plane with right import short blade 8, equally, right import linear leaf 7 is connected at the impeller outlet median plane with left import short blade 6.
Among the figure, deviated splitter vane to outlet shape difference, but is that import short blade 6, right import short blade 8 approximate circle curved surface of column are excessive left by left import linear leaf 5, right import linear leaf 7 inclination curved surfaces in the connecting part of left import linear leaf 5 and right import short blade 8 and right import linear leaf 7 and left import short blade 6 from import.Just can make like this, backside flow rate is tending towards equal; Water runner blade grid density increases, and has avoided producing the influence that refluxes in the runner, reduces pulsation and vibration; About (length) blades flows mix mutually, energy difference has improved efficient apart from diminishing, efficient district is widened.
In addition, proposition choma place can be used as sliding bearing and comes bearing radial force, thereby reduces the choma gap, improves volumetric efficiency and simplifies pump structure.
Claims (1)
1, a kind of double-suction centrifugal pump pump impeller, comprise left import front shroud (1), left side import back shroud (2), right import front shroud (3) and right import back shroud (4), left side import back shroud (2) is connected as a single entity with right import back shroud (4), it is characterized in that: between left import front shroud (1) and left import back shroud (2), be provided with left import linear leaf (5) and left import short blade (6), left side import linear leaf (5) is and shifts to install with left import short blade (6), between right import front shroud (3) and right import back shroud (4), be provided with right import linear leaf (7) and right import short blade (8), right import linear leaf (7) is with right import short blade (8) and shifts to install, and left import linear leaf (5) is connected as a single entity at the impeller outlet place with right import short blade (8), and left import short blade (6) is connected as a single entity at the impeller outlet place with right import linear leaf (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200364407U CN201351632Y (en) | 2009-02-16 | 2009-02-16 | Impeller for double suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200364407U CN201351632Y (en) | 2009-02-16 | 2009-02-16 | Impeller for double suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201351632Y true CN201351632Y (en) | 2009-11-25 |
Family
ID=41375019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200364407U Expired - Fee Related CN201351632Y (en) | 2009-02-16 | 2009-02-16 | Impeller for double suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201351632Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011153824A1 (en) * | 2010-06-11 | 2011-12-15 | Huang Xiaodong | Centrifugal water pump |
| CN103790858A (en) * | 2014-03-07 | 2014-05-14 | 武汉大学 | Method for improving centrifugal pump impeller abrasive resistance |
| CN103883557A (en) * | 2012-12-21 | 2014-06-25 | 上海凯士比泵有限公司 | Impeller without hydraulic head hump |
| CN103982441A (en) * | 2014-04-25 | 2014-08-13 | 江苏江进泵业有限公司 | Novel double-entry vortex pump |
| CN104776050A (en) * | 2015-03-25 | 2015-07-15 | 中国计量学院 | Impeller and volute chamber guide device in double-suction centrifugal pump |
| CN103883557B (en) * | 2012-12-21 | 2016-11-30 | 上海凯士比泵有限公司 | Lift is without the impeller of hump |
| CN118273972A (en) * | 2024-06-03 | 2024-07-02 | 烟台龙港泵业股份有限公司 | Impeller and volute chamber flow guiding device of double-suction centrifugal pump |
-
2009
- 2009-02-16 CN CNU2009200364407U patent/CN201351632Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011153824A1 (en) * | 2010-06-11 | 2011-12-15 | Huang Xiaodong | Centrifugal water pump |
| CN103883557A (en) * | 2012-12-21 | 2014-06-25 | 上海凯士比泵有限公司 | Impeller without hydraulic head hump |
| CN103883557B (en) * | 2012-12-21 | 2016-11-30 | 上海凯士比泵有限公司 | Lift is without the impeller of hump |
| CN103790858A (en) * | 2014-03-07 | 2014-05-14 | 武汉大学 | Method for improving centrifugal pump impeller abrasive resistance |
| CN103982441A (en) * | 2014-04-25 | 2014-08-13 | 江苏江进泵业有限公司 | Novel double-entry vortex pump |
| CN104776050A (en) * | 2015-03-25 | 2015-07-15 | 中国计量学院 | Impeller and volute chamber guide device in double-suction centrifugal pump |
| CN118273972A (en) * | 2024-06-03 | 2024-07-02 | 烟台龙港泵业股份有限公司 | Impeller and volute chamber flow guiding device of double-suction centrifugal pump |
| CN118273972B (en) * | 2024-06-03 | 2024-08-20 | 烟台龙港泵业股份有限公司 | Impeller and volute chamber flow guiding device of double-suction centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201351632Y (en) | Impeller for double suction centrifugal pump | |
| CN219492667U (en) | Energy-saving centrifugal sewage pump | |
| CN104314860A (en) | Impeller for low-specific speed centrifugal pump | |
| CN1786479A (en) | Centrifugal pump for deep well | |
| CN205243867U (en) | Vortex pump | |
| CN202597229U (en) | Pump impeller | |
| CN2821239Y (en) | Improved propeller of double suction centrifugal pump | |
| CN101813092A (en) | Multi-impeller combination hydraulic design method of multistage centrifugal pump | |
| CN103047174B (en) | Design method of efficient low-cavitation overload-free centrifugal pump impeller | |
| CN202597227U (en) | Novel pump impeller | |
| CN2392930Y (en) | Double-suction centrifugal pump | |
| CN212479596U (en) | Vertical single-suction two-stage centrifugal pump | |
| CN104279180A (en) | Double-suction impeller | |
| CN104912843A (en) | Mixed-flow-pump impeller with working-face oval blade outlet sides | |
| CN201972929U (en) | Flow rate and lift variable type self-balancing axial force multistage centrifugal pump | |
| CN108843619A (en) | A kind of double-volute structure of centrifugal pump | |
| CN204663902U (en) | A kind of self priming centrifugal pump | |
| CN103899727B (en) | A kind of large-tonnage loader fluid torque-converter | |
| CN208073858U (en) | A kind of axial-flow pump flow guiding nut | |
| CN207513933U (en) | A kind of centrifugal multistage pump multiple centrifugal pump for enhancing self-priming | |
| CN2727453Y (en) | Jet type self priming centrifugal pump | |
| CN2893245Y (en) | Double-suction centrifugal pump seal ring | |
| CN217814107U (en) | Centrifugal pump impeller with C-shaped blade inlet edge | |
| CN206889269U (en) | A kind of multistage middle open double-suction centrifugal pump high powered water pump of big flow ultrahigh pump lift | |
| CN219452518U (en) | Radial guide vane with smooth transition section |
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: 20091125 Termination date: 20140216 |