CN109340175A - A kind of centrifugation combined impeller with vortex periphery blade - Google Patents
A kind of centrifugation combined impeller with vortex periphery blade Download PDFInfo
- Publication number
- CN109340175A CN109340175A CN201811392735.8A CN201811392735A CN109340175A CN 109340175 A CN109340175 A CN 109340175A CN 201811392735 A CN201811392735 A CN 201811392735A CN 109340175 A CN109340175 A CN 109340175A
- Authority
- CN
- China
- Prior art keywords
- blade
- leaf dish
- centrifuge blade
- periphery
- main
- 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.)
- Pending
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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
- F04D29/2244—Free vortex
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
Abstract
The present invention relates to a kind of centrifugation combined impellers with vortex periphery blade, including periphery blade, secondary centrifuge blade, main centrifuge blade, impeller hub, lower leaf dish and lower leaf dish；The present invention improves outlet pressure, and the defect of engine ignition pressure is not achieved in the outlet pressure in the high revolving speed starting of small flow for avoiding pump.Centrifugation combined impeller with vortex periphery blade, it will overcome in Aero-Engine Start state, fuel flow is small, engine speed is low, the advantages of centrifugal pump is difficult to the shortcomings that providing high lift in this case, meets requirement of the fuel system to injection pressure, gives full play to the two, be conducive to engine quick response, widen its working range and application range.
Description
Technical field
The invention belongs to Centrifugal Pump Design field, in particular to a kind of centrifugation combined impeller with vortex periphery blade.
Background technique
The one of the important signs that of advanced aero engine is exactly thrust ratio height, improves the important of the thrust ratio of aero-engine
One of approach is exactly to mitigate the weight of fuel pump, and improving fuel oil revolution speed is the shortcut for mitigating its weight.And gear pump is then difficult to
It meets the requirements, because one gear pump (PV) value in high speed, high pressure, long-life is excessive, sliding bearing difficult design, so
The raising of revolving speed is subject to certain restrictions.Secondly a large amount of oil returns of gear pump and plunger pump make low-temperature-rise in high flow capacity ratio
Target be difficult to realize.In contrast, centrifugal pump structure is simple, it can be achieved that high speed, high pressure, big flow requirement, high reliablity, longevity
Life length, maintenance is easy, and function matter can also work than high under the inlet condition of certain vapour-liquid ratio two phase flow.But centrifugal pump is at low turn
Outlet pressure is low when fast, and requirement of the engine in igniting to oil pressure is not achieved；Constant speed centrifugal pump is in small flow, friction loss
Power is big, increases the fuel oil temperature of pump.
Existing aero-engine sundstrand pump, mainly with seperated centrifugal pump and gear pump combination, such combination pump housing
Product is big, weight is big, does not meet the requirement of novel fuel pump light weight small size.
Summary of the invention
The purpose of the present invention: the present invention proposes a kind of centrifugation combined impeller with vortex periphery blade, to improve engine
Thrust ratio and make up centrifugal pump in the slow-speed of revolution, small flow, the defect of engine ignition pressure is not achieved.Simultaneously with other points
Body formula sundstrand pump is compared and reduces volume and weight.
Technical solution of the present invention: providing a kind of centrifugation combined impeller with vortex periphery blade, including periphery blade 2,
Secondary centrifuge blade 3, main centrifuge blade 4, impeller hub 5, lower leaf dish 6 and lower leaf dish 7；Upper leaf dish 7 and lower leaf dish 6 and impeller hub
Be fixedly connected leaf dish 7 it is parallel with lower leaf dish 6 and coaxial arrangement；Upper 7 outer diameter of leaf dish is less than lower 6 outer diameter of leaf dish；
It has been arranged radially main centrifuge blade 4 in upper leaf dish 7 and secondary centrifuge blade 3 constitutes centrifugal impeller；Main 4 He of centrifuge blade
Secondary centrifuge blade 3 is around the setting of the interval of impeller hub 5, and main centrifuge blade 4 and secondary centrifuge blade 3 are from upper 7 upper disk surface of leaf dish
The upper disk surface of lower leaf dish 6 is extended to, and forms rib structure between upper and lower leaf dish；It is provided with through-hole 1 in the disk of upper leaf dish 7,
The through-hole is located between main centrifuge blade 4 and secondary centrifuge blade 3；
The periphery of lower leaf dish 6 is arranged in periphery blade 2, and is located in the lower disk of lower leaf dish 6, and vertical with lower leaf dish 6,
The quantity of periphery blade 2 is greater than the sum of the quantity of main centrifuge blade 4 and secondary centrifuge blade 3；Main centrifuge blade 4 and secondary centrifuge blade
3 outsides each extend to the outer rim of leaf dish；Main centrifuge blade 4 and secondary centrifuge blade 3 are outer rim normal direction at the outer rim of upper leaf dish
Direction；2 root radius of periphery blade is greater than upper 7 outer diameter of leaf dish.
Working principle:
The entrance of the corresponding centrifugation combined impeller of upper leaf dish 7, after low-voltage fuel enters centrifugal pump, via main 4 He of centrifuge blade
After the secondary guiding of centrifuge blade 3 flows into the through-hole 1, vortex periphery blade 2 is passed through, due to the rotation of vortex periphery blade, is made
It is pressurized to obtain low-voltage fuel.
Preferably, the length ratio of the length of secondary centrifuge blade and main centrifuge blade is 1:2~3:4.
Preferably, main centrifuge blade 4 and secondary centrifuge blade 3 are at parallel arrangement.
Preferably, 2 height of periphery blade, width, thickness uniformity.
Beneficial effects of the present invention:
The present invention improves outlet pressure, and hair is not achieved in the outlet pressure in the high revolving speed starting of small flow for avoiding pump
The defect of motivation igniter pressure.Centrifugation combined impeller with vortex periphery blade will overcome in Aero-Engine Start state, combustion
Oil stream amount is small, and engine speed is low, and centrifugal pump is difficult to the shortcomings that providing high lift in this case, meets fuel system to spray
The requirement of oil pressure is conducive to engine quick response the advantages of both giving full play to, and widens its working range and using model
It encloses.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is side view of the invention；
Fig. 3 is front view of the invention；
Wherein: through-hole 1, periphery blade 2, secondary centrifuge blade 3, main centrifuge blade 4, impeller hub 5, lower leaf dish 6 and inferior lobe
Disk 7.
Specific embodiment
Such as Fig. 1-3, a kind of centrifugation combined impeller with vortex periphery blade, including periphery blade 2, secondary centrifugation are specifically provided
Blade 3, main centrifuge blade 4, impeller hub 5, lower leaf dish 6 and lower leaf dish 7；Upper leaf dish 7 and lower leaf dish 6 and the fixed company of impeller hub
It connects；
Upper leaf dish 7 is parallel with lower leaf dish 6 and is coaxially disposed；Upper 7 outer diameter of leaf dish is less than lower 6 outer diameter of leaf dish；
It has been arranged radially main centrifuge blade 4 in upper leaf dish 7 and secondary centrifuge blade 3 constitutes centrifugal impeller；Main 4 He of centrifuge blade
Secondary centrifuge blade 3 is around the setting of the interval of impeller hub 5, and main centrifuge blade 4 and secondary centrifuge blade 3 are from upper 7 upper disk surface of leaf dish
The upper disk surface of lower leaf dish 6 is extended to, and forms rib structure between upper and lower leaf dish；It is provided with through-hole 1 in the disk of upper leaf dish 7,
The through-hole is located between main centrifuge blade 4 and secondary centrifuge blade 3；
The periphery of lower leaf dish 6 is arranged in periphery blade 2, and is located in the lower disk of lower leaf dish 6, and vertical with lower leaf dish 6,
The quantity of periphery blade 2 is greater than the sum of the quantity of main centrifuge blade 4 and secondary centrifuge blade 3；Main centrifuge blade 4 and secondary centrifuge blade
3 outsides each extend to the outer rim of leaf dish；Main centrifuge blade 4 and secondary centrifuge blade 3 are outer rim normal direction at the outer rim of upper leaf dish
Direction；2 root radius of periphery blade is greater than upper 7 outer diameter of leaf dish；The length ratio of the length of secondary centrifuge blade and main centrifuge blade
For 1:2.
Claims (4)
1. a kind of centrifugation combined impeller with vortex periphery blade, including periphery blade (2), secondary centrifuge blade (3), main centrifugation leaf
Piece (4), impeller hub (5), lower leaf dish (6) and lower leaf dish (7)；Upper leaf dish (7) and lower leaf dish (6) and the fixed company of impeller hub
It connects；
Upper leaf dish (7) is parallel with lower leaf dish (6) and is coaxially disposed；Upper leaf dish (7) outer diameter is less than lower leaf dish (6) outer diameter；
It has been arranged radially main centrifuge blade (4) on upper leaf dish (7) and secondary centrifuge blade (3) constitutes centrifugal impeller；Main centrifuge blade
(4) with secondary centrifuge blade (3) around the setting of impeller hub (5) interval, and main centrifuge blade (4) and pair centrifuge blade (3) from
Upper leaf dish (7) upper disk surface extends to the upper disk surface of lower leaf dish (6), and forms rib structure between upper and lower leaf dish；Upper leaf dish (7)
Disk on be provided with through-hole (1), the through-hole is located between main centrifuge blade (4) and secondary centrifuge blade (3)；
Periphery blade (2) be arranged lower leaf dish (6) periphery, and be located at lower leaf dish (6) lower disk on, and with lower leaf dish (6)
Vertically, the quantity of periphery blade (2) is greater than the sum of the quantity of main centrifuge blade (4) and secondary centrifuge blade (3)；Main centrifuge blade
(4) and on the outside of secondary centrifuge blade (3) outer rim of leaf dish is each extended to；Main centrifuge blade (4) and secondary centrifuge blade (3) are in upper leaf
It is outer rim normal orientation at the outer rim of disk；Periphery blade (2) root radius is greater than upper leaf dish (7) outer diameter.
2. a kind of centrifugation combined impeller with vortex periphery blade according to claim 1, it is characterized in that: secondary centrifuge blade
Length and main centrifuge blade length ratio be 1:2.
3. a kind of centrifugation combined impeller with vortex periphery blade according to claim 1, it is characterized in that: main centrifuge blade
With secondary centrifuge blade at parallel arrangement.
4. a kind of centrifugation combined impeller with vortex periphery blade according to claim 1, it is characterized in that: the periphery
The height of blade, width, thickness uniformity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392735.8A CN109340175A (en) | 2018-11-21 | 2018-11-21 | A kind of centrifugation combined impeller with vortex periphery blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392735.8A CN109340175A (en) | 2018-11-21 | 2018-11-21 | A kind of centrifugation combined impeller with vortex periphery blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340175A true CN109340175A (en) | 2019-02-15 |
Family
ID=65316867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811392735.8A Pending CN109340175A (en) | 2018-11-21 | 2018-11-21 | A kind of centrifugation combined impeller with vortex periphery blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340175A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677690A (en) * | 2020-06-16 | 2020-09-18 | 安徽埃斯克制泵有限公司 | Dredge pump with high self-priming performance |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558236A (en) * | 1968-09-10 | 1971-01-26 | Delavan Manufacturing Co | Self-purging regenerative turbine pump |
| GB1339986A (en) * | 1970-03-19 | 1973-12-05 | Roth Co Roy E | Multistage centrifugal pumps |
| US3973867A (en) * | 1975-04-09 | 1976-08-10 | Chien Fu Lee | Radial flow type pump |
| GB9115150D0 (en) * | 1991-07-13 | 1991-08-28 | Grosvenor Pumps Limited | Rotary pumps |
| JPH09144682A (en) * | 1995-11-24 | 1997-06-03 | Aisan Ind Co Ltd | Frictional regenerating pump |
| CN2530073Y (en) * | 2001-09-01 | 2003-01-08 | 黄国喜 | Self-scking centrifugal vortex pump of sprinkling car |
| CN102361698A (en) * | 2009-03-25 | 2012-02-22 | 伍德沃德公司 | Centrifugal impeller with controlled force balance |
-
2018
- 2018-11-21 CN CN201811392735.8A patent/CN109340175A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3558236A (en) * | 1968-09-10 | 1971-01-26 | Delavan Manufacturing Co | Self-purging regenerative turbine pump |
| GB1339986A (en) * | 1970-03-19 | 1973-12-05 | Roth Co Roy E | Multistage centrifugal pumps |
| US3973867A (en) * | 1975-04-09 | 1976-08-10 | Chien Fu Lee | Radial flow type pump |
| GB9115150D0 (en) * | 1991-07-13 | 1991-08-28 | Grosvenor Pumps Limited | Rotary pumps |
| JPH09144682A (en) * | 1995-11-24 | 1997-06-03 | Aisan Ind Co Ltd | Frictional regenerating pump |
| CN2530073Y (en) * | 2001-09-01 | 2003-01-08 | 黄国喜 | Self-scking centrifugal vortex pump of sprinkling car |
| CN102361698A (en) * | 2009-03-25 | 2012-02-22 | 伍德沃德公司 | Centrifugal impeller with controlled force balance |
Non-Patent Citations (1)
| Title |
|---|
| 郑时刚等: "《汉英国标术语词典》", 31 December 1996, 哈尔滨大电机研究所大电机杂志社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677690A (en) * | 2020-06-16 | 2020-09-18 | 安徽埃斯克制泵有限公司 | Dredge pump with high self-priming performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104343734B (en) | Centrifugal compressor | |
| CN104196571B (en) | A kind of method and its device for improving turbine engine efficiency | |
| CN108087121B (en) | A kind of aero-engine eccentric contract | |
| CN109340175A (en) | A kind of centrifugation combined impeller with vortex periphery blade | |
| CN108361205B (en) | Centrifugal pump impeller and LNG immersed pump comprising same | |
| CN106762139B (en) | A kind of gas turbine with embedded blade | |
| CN205277926U (en) | Intermediary's machine casket extension board and high pressure compressor import guide blade fuse structure | |
| CN101377183A (en) | Full voltage type hydroturbine | |
| CN202832670U (en) | Variable section turbochanger fixed nozzle ring | |
| CN101949325A (en) | Turbine device with changeable runner | |
| CN209100154U (en) | Height pushes away the small-size turbojet engine of ratio | |
| CN103195755B (en) | A kind of single blade screw centrifugal impeller | |
| CN207999389U (en) | A kind of external driven impeller | |
| CN208749451U (en) | A kind of diffuser, compressor and combustion gas turbine | |
| CN208153161U (en) | A kind of 90-100MW grades of heavy duty gas turbine | |
| CN208474137U (en) | Impeller built-in bearing formula one high-speed permanent magnetic centrifugal pump of single stage type | |
| CN202659513U (en) | Variable split-case pipeline pump | |
| CN201953667U (en) | Pneumatic motor submersible pump | |
| CN206338255U (en) | Magnetic drive pump axial force automatic balancing structure | |
| CN205315283U (en) | Divertor spiral case combination formula bilobed wheel centrifugal pump | |
| CN201696300U (en) | Two-stage cantilever centrifugal pump | |
| CN206290338U (en) | Burning drive device | |
| CN202937481U (en) | Centrifugal fan dedicated for burner of commercial kitchenware | |
| CN104373376A (en) | Arc-shaped oblique flow turbocharger compressor impeller | |
| CN109869203A (en) | A kind of mixed-flow volute |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chao Wenxiong Inventor after: Wang Junru Inventor after: Li Pengfei Inventor after: Wang Shuhong Inventor after: Shi Hualin Inventor after: Yang Yawei Inventor before: Chao Wenxiong |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |