CN107100893B - The adjustable centrifugal pump of blade or draught fan impeller - Google Patents
The adjustable centrifugal pump of blade or draught fan impeller Download PDFInfo
- Publication number
- CN107100893B CN107100893B CN201710354187.9A CN201710354187A CN107100893B CN 107100893 B CN107100893 B CN 107100893B CN 201710354187 A CN201710354187 A CN 201710354187A CN 107100893 B CN107100893 B CN 107100893B
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- CN
- China
- Prior art keywords
- vane
- front shroud
- shroud
- inlet
- blade
- 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.)
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/20—Purpose of the control system to optimize the performance of a machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The adjustable centrifugal pump of blade or draught fan impeller, there is a liquid-inlet among before the front shroud, it is intermediate behind back shroud to have wheel hub, front shroud, back shroud do not cast in integrated, there is inlet vane in the import of front shroud, there is an annulus at inlet vane rear, annulus, inlet vane, front shroud are integrated, the annulus, inlet vane, front shroud respectively under, in, upper three layer plane, inlet vane has several, and there is deep trouth in the centre of each inlet vane along leaf elongation direction；Circumferential outer edges inside back shroud are evenly distributed with several fixing axles, the quantity of fixing axle is identical as inlet vane quantity, there is the independent exit vane equal with the quantity of fixing axle, exit vane is the blade that there is vane hole in one end made of elastic material, the fixing axle is inserted into the exit vane hole, exit installation angle of the invention be it is adjustable, it is easy to adjust, practical, high-efficient.
Description
Technical field
The present invention relates to a kind of adjustable centrifugal pump of blade or draught fan impellers, belong to Thermal Energy and Power Engineering mechanical equipment
Part.
Background technique
Most common pump is centrifugal pump or blower, installation site (such as stagger angle, outlet of the blade on impeller
Established angle) it is close with the lift, flow, property relationship of pump.It is centrifuged the fundamental equation of Pumps & Fans: HT∞=1∕g(u2v2cos
α2- u1v1cosα1), PT∞=ρ(u 2 v 2 cosα2 - u1v1cosα1), H in formulaT∞To pump theoretical head, PT∞For blower theory
Total pressure, α2、α1Respectively fluid inlet, the conjunction speed of outlet and circular motion velocity angle, ρ are gas density, formula reflection
The quantitative relationship of centrifugal pump and fan blade position and lift or total pressure is gone out.In order to meet the need of different lifts or total pressure
It wants, early there is axial-flow pump or blower to produce blade adjustable.But centrifugal pump blower is seldom.The present inventor has
One patent: a kind of centrifugal pump impeller 2014100851579, but two problems are had found in practice, first is that rotating small tooth
Wheel, stagger angle, exit installation angle are all changed, second is that the shape of blade is partial to straight line, it is not camber line.In fact,
In determining a pump or blower, in the case where given rotating speed, in order to make efficiency highest, stagger angle is not change
, do not have to debugging.It can also illustrate this problem from the fundamental equation of centrifugation Pumps & Fans above, if making Pumps & Fans
Lift or total pressure are maximum, then make α1=90 °, in other words: fluid radial inflow impeller (fluid inflow velocity direction and circumference speed
It is vertical to spend direction).So it is maximally efficient for only debugging exit installation angle for centrifugal pump or blower.
Summary of the invention
The task of the present invention is, the adjustable centrifugal pump of invention blade or draught fan impeller, its exit installation angle adjusting side
Just, it can be improved efficiency, it is practical.
The technical solution adopted by the present invention to solve the technical problems is: the adjustable centrifugal pump of blade or draught fan impeller,
Include front shroud, back shroud, blade, before the front shroud among have a fluid inlet, after the back shroud
There is wheel hub among face, the front shroud, back shroud do not cast in integrated, there is import leaf in the import of the front shroud
There is an annulus at piece, the inlet vane rear, and the annulus, inlet vane, front shroud are integrated, the annulus, import leaf
Piece, front shroud respectively under, in, upper three layer plane, the inlet vane has several, and the centre of each inlet vane is along blade
Prolonging direction has deep trouth；Circumferential outer edges inside the back shroud are evenly distributed with several fixing axles, the fixing axle
Quantity is identical as the inlet vane quantity, there is the independent exit vane equal with the quantity of the fixing axle, the outlet
Blade is the blade that there is vane hole in one end made of elastic material, and the fixing axle is inserted into the exit vane hole, it is described go out
The other end of mouthful blade is inserted into the deep trouth of the inlet vane, the intermediate recess of the back shroud surround with it is described before
The reverse side of the annulus of cover board one, the intermediate recess of the back shroud is wheel hub, and the centre of the wheel hub is circular hole, the annulus
Centre is also the circular hole of same diameter.There is a mark line inside the back shroud, in the outside annulus of the front shroud
On have reference mark.It is fluted on the wheel hub of the back shroud, there is another groove in the import of the front shroud.If described
Impeller be it is large-scale, then the fixing axle axle center be the circular hole with silk, have screw pass through the front shroud be screwed in the band silk
In circular hole.The working principle of the invention is: front shroud and back shroud being separated in centre, inlet vane is kept and front shroud one
Body is constant, makes a deep trouth along leaf elongation direction in the centre of inlet vane, exit vane is inserted among deep trouth, outlet
The other end of blade is mounted in the fixing axle at back shroud edge by vane hole.When rotation front shroud and back shroud certain angle
When, exit vane angle is changing, and since exit vane is elastic piece, caused entire blade is that bending is fairshaped.It is fixed
Exit vane angle is the fixed screw and nut by intermediate circular hole, this nut by be added among front shroud and back shroud out
Mouth blade connects into a complete centrifugal pump or draught fan impeller.If the impeller is large-scale, only this nut
Strength is inadequate, then exit vane fixing axle axle center is processed as the circular hole with silk, passes through front shroud with screw, is screwed in the circle with silk
Kong Zhong uses the exit vane among the fixed front shroud of multiple screws and back shroud.Designed on the wheel hub of back shroud it is fluted,
There is another groove in the import of front shroud, its purpose is to be conveniently adjusted established angle.Due to the groove on the wheel hub of back shroud
Engaged with wheel shaft, only rotate front shroud another groove, exit installation angle can be made to change, variable quantity by back shroud mark line
It is represented with the reference mark relative position on annulus.Why the present invention proposes one piece of Pumps & Fans, is because of pump and wind
The working principle of machine is identical, and transmission is all fluid, and the structure for being centrifuged Pumps & Fans is very close, difference be only the number of blade,
The numerical value such as import size.In higher education teaching material, Pumps & Fans is also one piece of study, in the present invention, Pumps & Fans
It designs identical, it is not necessary that pump or blower are separated.
The invention has the advantages that exit installation angle be it is adjustable, it is easy to adjust, practical, high-efficient.
Can suitable environment, operating condition, improve the efficiency of pump perhaps blower especially for large-scale pump or blower, effect
Fruit is obvious, practical.
Detailed description of the invention
Invention will be further explained below with reference to the drawings and examples..
Fig. 1 is the structural schematic diagram of the inside of front shroud of the invention, back shroud.
Fig. 2 is the structural schematic diagram of the outside of front shroud of the invention, back shroud.
Fig. 3 is side sectional view of the invention.
1. front shroud in figure, 2. back shrouds, 3. annulus, 4. inlet vanes, 5. deep trouths, 6. fixing axles, 7. go out
Mouth vane hole, 8. exit vanes, 9. mark lines, 10. reference marks, 11. another grooves, 12. wheel hubs, 13. grooves,
14. circular hole.
Specific embodiment
Fig. 1 is the structural schematic diagram of the inside of front shroud of the invention, back shroud.Why two are schemed and is Fig. 1, is
In order to enable more representative when the structure of this width is as Figure of abstract.The left figure of Fig. 1 is the knot of the inside of front shroud 1
Structure schematic diagram has inlet vane 4 in the import of front shroud 1, and it is liquid-inlet, in import that the lower section of inlet vane 4, which is empty,
There is an annulus 3 at the rear of blade 4, annulus 3, inlet vane 4, front shroud 1 be it is integrated, respectively under, in, upper three layer plane, Fig. 1
Middle inlet vane 4 has 5, has deep trouth 5 along leaf elongation direction in the centre of inlet vane 4.The right figure of Fig. 1 is back shroud 2
The structural schematic diagram of the inside, the outer edge in 2 the inside of back shroud are evenly distributed with 5 fixing axles 6, and one end of exit vane 8 has
Exit vane hole 7, fixing axle 6 are inserted into exit vane hole 7, and 8 other end of exit vane is inserted into the inlet vane 4 of Fig. 1 left figure
In deep trouth 5.There is a mark line 10 in the inside of back shroud 2.The centre of Fig. 1 right figure is the circle of recess, in Fig. 1 left figure
Between be raised round matching engagement.Fig. 2 is the structural schematic diagram of the outside of front shroud of the invention, back shroud.Before Fig. 2 left figure
Cover board 1, inlet vane 4, annulus 3 have reference mark 10, the change of blade angle in upper, middle and lower-ranking plane, annulus 3 respectively
Change amount is represented by mark line 9 and the relative position of reference mark 10.There is another groove 11 in liquid-inlet；After Fig. 2 right figure
The centre of cover board is wheel hub 12, is circular hole 14 among wheel hub 12 fluted 13 on wheel hub 12.
Claims (4)
1. the adjustable centrifugal pump of blade or draught fan impeller include front shroud, back shroud, blade, before the front shroud
There is a fluid inlet among face, there is wheel hub in centre behind the back shroud, it is characterized in that: the front shroud, back shroud are not
It casts in integrated, has inlet vane in the import of the front shroud, there are an annulus, the circle in the inlet vane rear
Ring, inlet vane, front shroud be it is integrated, the annulus, inlet vane, front shroud respectively under, in, upper three layer plane, it is described
Inlet vane has several, and there is deep trouth in the centre of each inlet vane along leaf elongation direction；Inside the back shroud
Circumferential outer edges are evenly distributed with several fixing axles, and the quantity of the fixing axle is identical as the inlet vane quantity, have and institute
The equal independent exit vane of the quantity of fixing axle is stated, the exit vane is that one end made of elastic material has exit vane
The blade in hole, the fixing axle are inserted into the exit vane hole, and the other end of the exit vane is inserted into the inlet vane
The deep trouth in, the intermediate recess of the back shroud surrounds the annulus with the front shroud one, in the back shroud
Between the reverse side that is recessed be wheel hub, the centre of the wheel hub is circular hole, is also the circular hole of same diameter among the annulus.
2. the adjustable centrifugal pump of blade according to claim 1 or draught fan impeller, it is characterized in that: in the back shroud
There is a mark line in the inside, has reference mark on the outside annulus of the front shroud.
3. the adjustable centrifugal pump of blade according to claim 1 or draught fan impeller, it is characterized in that: in the back shroud
It is fluted on wheel hub, there is another groove in the import of the front shroud.
4. the adjustable centrifugal pump of blade according to claim 1 or draught fan impeller, it is characterized in that: if the impeller is
Large-scale, then the fixing axle axle center is the circular hole with silk, has screw to pass through the front shroud and is screwed in the circular hole of the band silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354187.9A CN107100893B (en) | 2017-05-18 | 2017-05-18 | The adjustable centrifugal pump of blade or draught fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354187.9A CN107100893B (en) | 2017-05-18 | 2017-05-18 | The adjustable centrifugal pump of blade or draught fan impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100893A CN107100893A (en) | 2017-08-29 |
| CN107100893B true CN107100893B (en) | 2019-05-10 |
Family
ID=59670377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354187.9A Active CN107100893B (en) | 2017-05-18 | 2017-05-18 | The adjustable centrifugal pump of blade or draught fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100893B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899316A (en) * | 2017-12-08 | 2019-06-18 | 张颖 | Accelerate the centrifugal impeller of centrifugal pump |
| CN108198501B (en) * | 2017-12-10 | 2019-10-15 | 安徽银龙泵阀股份有限公司 | A kind of centrifugation impeller of pump of variable curvature |
| CN110094357B (en) * | 2019-04-03 | 2021-07-06 | 青岛经济技术开发区海尔热水器有限公司 | Impeller for centrifugal pump, centrifugal pump and household appliance |
| CN113090577B (en) * | 2021-04-06 | 2023-02-17 | 江苏大学 | Centrifugal pump impeller with adjustable blade outlet angle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362861A (en) * | 2012-03-29 | 2013-10-23 | 三星电机株式会社 | Mpeller and vacuum cleaner motor assembly including the same |
| CN203463357U (en) * | 2013-05-28 | 2014-03-05 | 上海沃克通用设备有限公司 | Angle-adjustable centrifugal impeller |
| CN105134645A (en) * | 2015-09-01 | 2015-12-09 | 兰州理工大学 | Impeller and centrifugal pump provided with same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59196901A (en) * | 1983-04-25 | 1984-11-08 | Ebara Corp | Sealed impeller made of ceramics |
| KR100412560B1 (en) * | 2001-06-08 | 2003-12-31 | 현대자동차주식회사 | Impeller of water pump having variable vane |
| JP2004353593A (en) * | 2003-05-30 | 2004-12-16 | Mitsubishi Electric Corp | Centrifugal fan |
-
2017
- 2017-05-18 CN CN201710354187.9A patent/CN107100893B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362861A (en) * | 2012-03-29 | 2013-10-23 | 三星电机株式会社 | Mpeller and vacuum cleaner motor assembly including the same |
| CN203463357U (en) * | 2013-05-28 | 2014-03-05 | 上海沃克通用设备有限公司 | Angle-adjustable centrifugal impeller |
| CN105134645A (en) * | 2015-09-01 | 2015-12-09 | 兰州理工大学 | Impeller and centrifugal pump provided with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107100893A (en) | 2017-08-29 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190506 Address after: 253000 No. 6 workshop of Shandong Huanyu Sunshine Solar Energy Co., Ltd., No. 5886 Dongfanghong Road, Yuanqiao Town, Dezhou Economic and Technological Development Zone, Shandong Province Patentee after: Dezhou Shengze Air Conditioning and Ventilation Equipment Co., Ltd. Address before: 253014 Unit 501, Unit 6, Building 1, Family Home, People's Bank of China, 399 Kangbo Avenue, Decheng District, Dezhou City, Shandong Province Patentee before: Men Lishan |
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| TR01 | Transfer of patent right |