CN106499670A - Pump installation outlet passage with secondary stator - Google Patents
Pump installation outlet passage with secondary stator Download PDFInfo
- Publication number
- CN106499670A CN106499670A CN201610956884.7A CN201610956884A CN106499670A CN 106499670 A CN106499670 A CN 106499670A CN 201610956884 A CN201610956884 A CN 201610956884A CN 106499670 A CN106499670 A CN 106499670A
- Authority
- CN
- China
- Prior art keywords
- secondary stator
- outlet passage
- pump installation
- stator
- vanelets
- 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.)
- Granted
Links
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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/548—Specially adapted for liquid pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Pump installation outlet passage with secondary stator, belongs to hydraulic engineering technical field.Including be placed in outlet passage impeller, diffuser, it is characterized in that, be additionally provided with secondary stator, the secondary stator is located in outlet passage behind water pump guide vane body, and secondary stator is apart from diffuser wheel hub top（0.1‑0.2）D, D are water pump vane diameter；The secondary stator is made up of secondary stator vanelets, the big blade of secondary stator, and secondary stator vanelets are placed in the vertical section of pumping plant bending section, and the big blade place section of secondary stator is perpendicular with the vertical section.The present invention is applied to the outlet passage of various pumping plants, can improve the screw type flowing of water outlet, current is more smoothed out, and pump installation overall performance is significantly improved, energy-saving.
Description
Technical field
The present invention relates to a kind of pump installation outlet passage with secondary stator, belongs to hydraulic engineering technical field, especially water
Power field of mechanical technique.
Background technology
Axial-flow pump is made up of runner and diffuser.Stator plays rectification and energy regenerating for the huge circular rector of axial-flow pump outlet of rotary wheel
Important function.The effect of energy regenerating depends on its hydraulic loss, and guide vane quantity is more, and hydraulic loss is big, and quantity is few, stator
The remaining circular rector of outlet is big.The number of blade of generally stator is 5-7 pieces, and the remaining circular rector of stator outlet is than larger.This frequently results in
Current in pumping plant outlet passage carry certain circular rector, current helically property flowing, thus produce certain additional water
Power is lost.The disengaging of outlet passage current is sometimes resulted in, hydraulic loss increases so that pumping plant efficiency declines.This is also system
About one of major reason of pumping plant efficiency.Therefore, suppress and eliminate the spiral in pump installation outlet passage and the separation of flow, be to carry
The important channel of high unit efficiency.
Content of the invention
The purpose of the present invention is for above-mentioned the deficiencies in the prior art, there is provided a kind of pump installation with secondary stator goes out current
Road.The present invention is for the secondary stator in axial-flow pump and mixed flow pump installation outlet passage, positioned at water pump guide vane body in outlet passage
Behind certain distance position.
The purpose of the present invention is achieved through the following technical solutions：Pump installation outlet passage with secondary stator, including putting
Impeller, diffuser in the outlet passage, is characterized in that, be additionally provided with secondary stator, and the secondary stator is located at water pump in outlet passage and leads
Behind leaf body, secondary stator is apart from diffuser wheel hub top（0.1-0.2）D, D are water pump vane diameter；
The secondary stator is made up of secondary stator vanelets, the big blade of secondary stator, and secondary stator vanelets are placed in pumping plant bending section
Vertical section in, the big blade place section of secondary stator is perpendicular with the vertical section.
The secondary stator vanelets flow length downstream and are（0.1-0.3）D, thickness is（0.06-0.08）D, D are water pump vane
Diameter.
The big length of blade of the secondary stator is（1-1.5）D, thickness is（0.05-0.07）D, D are water pump vane diameter.
The flat shape of the secondary stator vanelets is rectangle.
The secondary stator big blade is shaped as V-type or U-shaped.
The section of the head and afterbody of the secondary stator is streamlined, makes current loss reduction.
Side wall of the blade of the secondary stator with the vertical section both sides of outlet passage respectively at outlet passage is fixedly connected.
The secondary stator vanelets upper end is connected with the big blade of secondary stator, and lower end is fixedly connected with the base plate of outlet passage.
The section of the secondary stator is streamlined.
The secondary stator is using precast rc slab component or hardware.
Design of the present invention for pumping plant outlet passage, after pumping plant outlet passage is located at impeller, stator.When
Current from guide vane of water pump flow out when, current still carry larger remaining circular rector, through pair stator after, water-flow distribution is obtained
Further recovery, the screw type flowing of current are significantly changed, and therefore, the hydraulic loss of outlet passage will reduce,
Pipeline efficiency gets a promotion, and pump assembly efficiency is accordingly improved.
The present invention is applied to the outlet passage of various pumping plants, can improve the screw type flowing of water outlet, make current more
Plus smooth-going, pump installation overall performance is significantly improved, energy-saving.
Axial-flow pump and mixed-flow pump at home and abroad have great market.China has the usage amount of 3 ~ 40,000 axial-flow pumps every year.Across
Basin water transfer, water supply project and drainage and irrigation project etc. have substantial amounts of pumping plant construction and renovate.The present invention is conducive to various low raise
Journey pumping plant improves water outlet fluidised form, reduces hydraulic loss, improves pump assembly efficiency, and reducing energy consumption, technically reliable, it is easy to implement are answered
With having a extensive future, economic benefit is big.
Description of the drawings
Fig. 1 is the section plan of the present invention；
Fig. 2 is the three-dimensional cutaway view of the present invention；
Fig. 3 is the cross-section side view of the present invention；
Fig. 4 is the three-dimensional line block diagram of the present invention；
Fig. 5 is water pump water outlet passage three-dimensional perspective；
In figure：1 impeller, 2 diffusers, 3 secondary stator vanelets, the big blade-U-shaped of 4 pair stators, the big blade-V-arrangement of 5 pair stators, 6 go out
Water flow passage.
Specific embodiment
The present invention is applied to low-lift pump, requires design drawing according to the design.
Pump installation outlet passage with secondary stator, including be placed in outlet passage 6 impeller 1, diffuser 2, secondary stator.Should
Secondary stator is located in outlet passage behind water pump guide vane body, and secondary stator apart from 0.1 D-0.2 D of diffuser wheel hub top, D is
Water pump vane diameter.
Secondary stator is made up of secondary stator vanelets 3, the big blade of secondary stator, and secondary stator vanelets are placed in pumping plant bending section
Vertical section in, the big blade place section of secondary stator is perpendicular with the vertical section（I.e. secondary stator vanelets and secondary stator great Ye
The center line of piece is perpendicular）.
Secondary stator vanelets flow length downstream for 0.1 D-0.3 D, and thickness is 0.06 D-0.08 D.The big blade of secondary stator
Length is 1D-1.5 D, and thickness is 0.05D-0.07 D.
The flat shape of secondary stator vanelets is rectangle, and the big blade of secondary stator is shaped as V-type or U-shaped.The head of secondary stator
The section of portion and afterbody is streamlined, makes current loss reduction.
Side wall regulation of the water pump pair guide vane of stator with the vertical section both sides of water pump water outlet passage respectively at runner is connected.
The stator sheet head of secondary stator makes streamlined import, and trailing edge makes streamlined outlet.Vanelets upper end is connected with guide vane, under
End is fixedly connected with the base plate of runner, and guide vane section makes streamlined section.Guide vane can adopt prefabricated reinforced concrete
Board member, it would however also be possible to employ hardware.
Claims (10)
1. a kind of pump installation outlet passage with secondary stator, including being placed in outlet passage（6）Interior impeller（1）, diffuser（2）,
It is characterized in that, be additionally provided with secondary stator, the secondary stator is located in outlet passage behind water pump guide vane body, and secondary stator is apart from diffuser
Wheel hub top（0.1-0.2）D, D are water pump vane diameter；
The secondary stator is by secondary stator vanelets（3）, the big blade composition of secondary stator, secondary stator vanelets are placed in pumping plant bending
In the vertical section of section, the big blade place section of secondary stator is perpendicular with the vertical section.
2. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, the secondary stator vanelets are suitable
Current length is（0.1-0.3）D, thickness is（0.06-0.08）D, D are water pump vane diameter.
3. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, the big blade of the secondary stator is long
Spend and be（1-1.5）D, thickness is（0.05-0.07）D, D are water pump vane diameter.
4. the pump installation outlet passage with secondary stator according to claim 1 and 2, is characterized in that, the secondary stator leaflet
The flat shape of piece is rectangle.
5. the pump installation outlet passage of the band pair stator according to claim 1 or 3, is characterized in that, the secondary stator great Ye
Piece is shaped as V-type or U-shaped.
6. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, the head of the secondary stator and
The section of afterbody is streamlined, makes current loss reduction.
7. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, the blade of the secondary stator with
The vertical section both sides of outlet passage are fixedly connected respectively at the side wall of outlet passage.
8. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, on the secondary stator vanelets
End is connected with the big blade of secondary stator, and lower end is fixedly connected with the base plate of outlet passage.
9. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, the section of the secondary stator is
Streamlined.
10. the pump installation outlet passage with secondary stator according to claim 1, is characterized in that, the secondary stator is using pre-
Armored concrete board member processed or hardware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956884.7A CN106499670B (en) | 2016-10-28 | 2016-10-28 | Pump installation outlet passage with secondary stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610956884.7A CN106499670B (en) | 2016-10-28 | 2016-10-28 | Pump installation outlet passage with secondary stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106499670A true CN106499670A (en) | 2017-03-15 |
| CN106499670B CN106499670B (en) | 2017-10-10 |
Family
ID=58322410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610956884.7A Active CN106499670B (en) | 2016-10-28 | 2016-10-28 | Pump installation outlet passage with secondary stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106499670B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630466A (en) * | 2018-12-12 | 2019-04-16 | 扬州大学 | One kind disappears vortex method and its application for the correction of low-lift-head pumping station outlet passage |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2422053A1 (en) * | 1978-04-03 | 1979-11-02 | Acec | Centrifugal pump with double sided impeller - has inlet ducts passing through holes in specially shaped diffuser vanes |
| US5511942A (en) * | 1993-11-04 | 1996-04-30 | Micronel Ag | Axial mini ventilator with parabolic guide vanes |
| CN1554872A (en) * | 2003-12-25 | 2004-12-15 | 华中科技大学 | Two-way through flow/axial flow pump |
| WO2007137924A1 (en) * | 2006-05-26 | 2007-12-06 | Abb Turbo Systems Ag | Diffuser |
| CN203146407U (en) * | 2013-02-05 | 2013-08-21 | 扬州大学 | Rear vertical shaft tubular pump device with front guide vane |
| CN203223412U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Spindle type bulb tubular pump device |
| US20130280060A1 (en) * | 2012-04-23 | 2013-10-24 | Shakeel Nasir | Compressor diffuser having vanes with variable cross-sections |
| US20140030055A1 (en) * | 2012-07-25 | 2014-01-30 | Summit Esp, Llc | Apparatus, system and method for pumping gaseous fluid |
| CN204511975U (en) * | 2014-12-31 | 2015-07-29 | 扬州大学 | A kind of horizontal pump device water flowing out structure |
| CN205154759U (en) * | 2014-10-30 | 2016-04-13 | 日本电产株式会社 | Air supply device and dust collector |
-
2016
- 2016-10-28 CN CN201610956884.7A patent/CN106499670B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2422053A1 (en) * | 1978-04-03 | 1979-11-02 | Acec | Centrifugal pump with double sided impeller - has inlet ducts passing through holes in specially shaped diffuser vanes |
| US5511942A (en) * | 1993-11-04 | 1996-04-30 | Micronel Ag | Axial mini ventilator with parabolic guide vanes |
| CN1554872A (en) * | 2003-12-25 | 2004-12-15 | 华中科技大学 | Two-way through flow/axial flow pump |
| WO2007137924A1 (en) * | 2006-05-26 | 2007-12-06 | Abb Turbo Systems Ag | Diffuser |
| CN101454577A (en) * | 2006-05-26 | 2009-06-10 | Abb涡轮***有限公司 | Diffuser |
| US20130280060A1 (en) * | 2012-04-23 | 2013-10-24 | Shakeel Nasir | Compressor diffuser having vanes with variable cross-sections |
| CN104350286A (en) * | 2012-04-23 | 2015-02-11 | 电动内燃机公司 | Compressor diffuser with vanes having variable cross-section |
| US20140030055A1 (en) * | 2012-07-25 | 2014-01-30 | Summit Esp, Llc | Apparatus, system and method for pumping gaseous fluid |
| CN203146407U (en) * | 2013-02-05 | 2013-08-21 | 扬州大学 | Rear vertical shaft tubular pump device with front guide vane |
| CN203223412U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Spindle type bulb tubular pump device |
| CN205154759U (en) * | 2014-10-30 | 2016-04-13 | 日本电产株式会社 | Air supply device and dust collector |
| CN204511975U (en) * | 2014-12-31 | 2015-07-29 | 扬州大学 | A kind of horizontal pump device water flowing out structure |
Non-Patent Citations (2)
| Title |
|---|
| 仇宝云等: "大型泵站双孔出水流道偏流分析", 《水力发电学报》 * |
| 汤方平等: "Influence of Outlet Guide Vanes upon Performances", 《船舶力学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630466A (en) * | 2018-12-12 | 2019-04-16 | 扬州大学 | One kind disappears vortex method and its application for the correction of low-lift-head pumping station outlet passage |
| CN109630466B (en) * | 2018-12-12 | 2024-01-23 | 扬州大学 | Deviation rectifying and vortex eliminating method for low-lift pump station water outlet flow passage and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106499670B (en) | 2017-10-10 |
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