CN106499669B - Using the water pump of flexible guide vane - Google Patents
Using the water pump of flexible guide vane Download PDFInfo
- Publication number
- CN106499669B CN106499669B CN201610956882.8A CN201610956882A CN106499669B CN 106499669 B CN106499669 B CN 106499669B CN 201610956882 A CN201610956882 A CN 201610956882A CN 106499669 B CN106499669 B CN 106499669B
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- China
- Prior art keywords
- guide vane
- section
- flexible
- pump
- water pump
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/566—Fluid-guiding means, e.g. diffusers adjustable specially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Using the water pump of flexible guide vane, belong to hydraulic engineering technical field.Including Taper Pipe, water pump blade, guide vane outside diffuser, characterized in that the guide vane is flexible guide vane, which is made of the fixed rigid section on top and the deformable flexible section of lower part, and the outlet of the guide vane rigid section is consistent with pump shaft direction；The outlet side of the guide vane compliant section is connect with the inlet side of guide vane rigid section, and the inlet side of guide vane compliant section is connected with coupling spindle, and the both ends of the coupling spindle are fixed with Taper Pipe side wall outside diffuser wheel hub, diffuser respectively.The present invention is suitable for various axial-flow pumps and guide vane mixed-flow pump, the larger pump station engineering of operating condition luffing is can adapt to, off-design behaviour pump installation overall performance is significantly improved, significantly widens the use scope of axial-flow pump and guide vane mixed-flow pump, operating cost is few, more energy-efficient.
Description
Technical field
The present invention relates to a kind of water pumps using flexible guide vane, belong to hydraulic engineering technical field, especially hydraulic,
Fluid machinery, hydrodynamic technology field.
Background technology
Axial-flow pump and guide vane mixed flow pump are fitted with diffuser behind runner.Guide vane is huge for pump outlet of rotary wheel
Big circular rector plays the important function of rectification and energy regenerating.The effect of guide vane depends on its hydraulic loss, straight with the fluid flow angle of import
Connect correlation.The guide vane usually pumped is fixed, and the operating condition pumped is variation.Change off-target in operating condition
When operating mode, the flow velocity direction of outlet of rotary wheel becomes therewith, this fluid flow angle for allowing for vane inlet changes, and leads to Inlet water
Stream is detached from, and hydraulic loss increases, and the efficiency of pump declines.This be exactly axial-flow pump high efficiency range it is relatively narrow the main reason for.Therefore, greatly
The impeller of type axial-flow pump and mixed-flow pump, which often makes blade, can rotate the structure of angle modulation, to adapt to operating mode variation, improve efficiency.Cause
This increases prodigious manufacturing cost, and is simply possible to use in mammoth pump.
Invention content
The purpose of the present invention is in view of the above shortcomings of the prior art, provide a kind of water pump using flexible guide vane.This hair
The bright guide vane for for recycling fluid rotary kinetic energy on rear side of the impeller outlet of axial-flow pump and mixed-flow pump, which is different from existing
Guide vane.
The purpose of the present invention is what is be achieved through the following technical solutions：Using the water pump of flexible guide vane, including outside diffuser
Taper Pipe, water pump blade, guide vane, characterized in that the guide vane is flexible guide vane, the flexibility guide vane by top fixed rigid section
It is formed with the deformable flexible section of lower part, the outlet of the guide vane rigid section is consistent with pump shaft direction；The guide vane compliant section
Outlet side connect with the inlet side of guide vane rigid section, the inlet side of guide vane compliant section is connected with coupling spindle, the two of the coupling spindle
End is fixed with Taper Pipe side wall outside diffuser wheel hub, diffuser respectively.
The guide vane compliant section is made of high-strength membrane class flexible material or chain-belt type rigid material.
The axial length of the guide vane rigid section is (0.15-0.26) D, and the axial length of guide vane compliant section is (0.3-
0.45) D, D are impeller diameter.
The outlet side of the guide vane compliant section is connect with the inlet side of guide vane rigid section using latch closure, with sharp flexible guide vane
Rotation.
The coupling spindle is cylinder, and a diameter of 0.01D, D are impeller diameter；Coupling spindle is using welding or threaded connection point
It is not fixed with Taper Pipe side wall outside diffuser wheel hub, diffuser.
Design and manufacture of the present invention for the pump section of axial-flow pump and mixed-flow pump, axial-flow pump and mixed-flow pump pump section by impeller, lead
Leaf and bend pipe composition, the inlet side of guide vane compliant section can follow incoming to be rotated around coupling spindle, adapt to the difference of incoming automatically
Deflection so that water impact loss reduction.
When the operating mode of axial-flow pump and guide vane mixed-flow pump changes, fluid going out at impeller outlet flows angle and accordingly changes.It is logical
Normal guide vane is fixed, therefore the fluid for changing flow direction is no longer matched when flowing into guide vane, makes guide vane inflow angle
It is excessive or too small, cause shock at entry loss to increase, the efficiency of pump reduces.The vane inlet side of the present invention can follow incoming around connection
Shaft rotation is dynamic, the automatic variation for adapting to direction of flow angle so that fluid energy losses are minimum.
The present invention is suitable for various axial-flow pumps and guide vane mixed-flow pump, can adapt to the larger pumping plant work of operating condition luffing
Journey significantly improves off-design behaviour pump installation overall performance, significantly widens the use scope of axial-flow pump and guide vane mixed-flow pump, fortune
Row expense is few, more energy-efficient.
Axial-flow pump and mixed-flow pump at home and abroad have great market.There is the usage amount of 3 ~ 40,000 axial-flow pumps in China every year.Across
Basin water transfer, water supply project and drainage and irrigation project etc. have a large amount of pumping plant construction and renovate.The present invention is conducive to various low raise
Journey pumping plant significantly widens high efficient district, adapts to different operating mode operations, and technically reliable is easy to implement, reduces energy consumption, improves efficiency,
It has a extensive future, economic and social benefits are huge.
Description of the drawings
Fig. 1 is the three-dimensional line block diagram of the present invention；
Fig. 2 is the schematic diagram when liquid flowing speed of the present invention reduces；
Fig. 3 is the schematic diagram when liquid flowing speed of the present invention increases；
Fig. 4 is the three-dimensional perspective of the present invention；
In figure：1 flexible guide vane, 2 diffusers outer Taper Pipe, 3 diffuser wheel hubs, 4 water pump blades, 5 blade wheel chamber, 6 impeller wheels
Hub, 7 guide vane compliant sections, 8 guide vane fixed sections, 9 vane inlet coupling spindles, 10 latch closures.
Specific implementation mode
The present invention is suitable for Axial-Flow Pumps with Low Head and mixed-flow pump, requires to design figure according to the design.
Using the water pump of flexible guide vane, including Taper Pipe 2 outside diffuser, water pump blade 4, flexible guide vane 1, the flexibility guide vane by
The fixed rigid section 8 on top and the deformable flexible section 7 of lower part form.
The outlet of guide vane rigid section 8 is consistent with pump shaft direction, outlet side and the guide vane rigid section 8 of guide vane compliant section 7 into
Mouth side is connected using latch closure 10, with the rotation of sharp flexible guide vane.
The inlet side of guide vane compliant section is connected with coupling spindle 9, the both ends of the coupling spindle respectively with diffuser wheel hub 3, guide vane
External Taper Pipe side wall is fixed.The inlet side of guide vane compliant section can follow incoming to be rotated around coupling spindle automatically, adapt to incoming
Different directions angle so that water impact loss reduction.
Guide vane compliant section 7 can use intensity height, durable film material, can also use the rigid material of chain-type, break
Face, which should ensure that, meets guide vane design requirement.The axial length of guide vane rigid section is 0.15D-0.26D, and the axial direction of guide vane compliant section is long
Degree is 0.3D-0.45D, and D is impeller diameter.
Coupling spindle is cylinder, and a diameter of 0.01D, D are impeller diameter；Coupling spindle using welding or be threadedly coupled respectively with
The outer Taper Pipe side wall of diffuser wheel hub, diffuser is fixed.
For impeller of pump according to conventional making, the gap-ratio conventional value between impeller of pump outlet and the inlet side of guide vane is big
0.01D (D is impeller diameter).The processing of guide vane fixed section, the installation of guide vane wheel hub and bearing are carried out according to related standard, it is fixed
The rigidity of section should ensure that the support to pump bearing.
Claims (5)
1. a kind of water pump using flexible guide vane, including Taper Pipe (2), water pump blade (4), guide vane outside diffuser, guide vane are in water
The outlet side of pump blade, characterized in that the guide vane is flexible guide vane (1), the flexibility guide vane by top fixed rigid section
(8) and the deformable flexible section of lower part (7) composition, the outlet of the guide vane rigid section (8) are consistent with pump shaft direction；It is described to lead
The outlet side of leaf compliant section (7) is connect with the inlet side of guide vane rigid section (8), and the inlet side of guide vane compliant section is connected with coupling spindle
(9), the both ends of the coupling spindle are fixed with diffuser wheel hub (3), the outer Taper Pipe side wall of diffuser respectively.
2. the water pump according to claim 1 using flexible guide vane, characterized in that the guide vane compliant section (7) is using high
Intensity film class flexible material or chain-belt type rigid material make.
3. the water pump according to claim 1 using flexible guide vane, characterized in that the axial length of the guide vane rigid section
For (0.15-0.26) D, it is impeller diameter that the axial length of guide vane compliant section, which is (0.3-0.45) D, D,.
4. the water pump according to claim 1 using flexible guide vane, characterized in that the outlet side of the guide vane compliant section with
The inlet side of guide vane rigid section is connected using latch closure (10), with the rotation of sharp flexible guide vane.
5. the water pump according to claim 1 using flexible guide vane, characterized in that the coupling spindle is cylinder, diameter
It is impeller diameter for 0.01D, D；Coupling spindle using welding or be threadedly coupled respectively with Taper Pipe side wall outside diffuser wheel hub, diffuser
It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956882.8A CN106499669B (en) | 2016-10-28 | 2016-10-28 | Using the water pump of flexible guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956882.8A CN106499669B (en) | 2016-10-28 | 2016-10-28 | Using the water pump of flexible guide vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106499669A CN106499669A (en) | 2017-03-15 |
| CN106499669B true CN106499669B (en) | 2018-09-14 |
Family
ID=58322438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610956882.8A Active CN106499669B (en) | 2016-10-28 | 2016-10-28 | Using the water pump of flexible guide vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106499669B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187765B (en) * | 2021-05-20 | 2022-07-22 | 江苏大学 | Flow area adjustable mixed flow pump flexible guide vane structure, mixed flow pump and adjusting method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE298042T1 (en) * | 2001-09-17 | 2005-07-15 | Clean Current Power Systems Inc | UNDERWATER MANUEL TURBINE |
| GB2426555A (en) * | 2005-05-28 | 2006-11-29 | Siemens Ind Turbomachinery Ltd | Turbocharger air intake |
| US8197196B2 (en) * | 2007-08-31 | 2012-06-12 | General Electric Company | Bushing and clock spring assembly for moveable turbine vane |
| EP2083174A1 (en) * | 2008-01-25 | 2009-07-29 | Siemens Aktiengesellschaft | Inlet guide vane for a gas compressor |
| CN203067362U (en) * | 2013-01-22 | 2013-07-17 | 扬州大学 | Tubular pump with adjustable inflow angle of back guide vane |
| CN204878074U (en) * | 2015-08-13 | 2015-12-16 | 扬州大学 | Stator blade of back stator sweepforward of axial compressor pump station |
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2016
- 2016-10-28 CN CN201610956882.8A patent/CN106499669B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106499669A (en) | 2017-03-15 |
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