CN106678077A - Porous structure type light impeller - Google Patents
Porous structure type light impeller Download PDFInfo
- Publication number
- CN106678077A CN106678077A CN201710082059.3A CN201710082059A CN106678077A CN 106678077 A CN106678077 A CN 106678077A CN 201710082059 A CN201710082059 A CN 201710082059A CN 106678077 A CN106678077 A CN 106678077A
- Authority
- CN
- China
- Prior art keywords
- impeller
- wheel disc
- pore space
- space structure
- structure formula
- 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
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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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/173—Aluminium alloys, e.g. AlCuMgPb
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the field of fluid machinery and relates to a porous structure type light impeller. The porous structure type light impeller comprises a wheel disc and blades which are fixed to the wheel disc, wherein the inner part of the wheel disc is designed into a porous structure. By adopting the porous structure, materials can be saved, the mass of the impeller can be reduced, the centrifugal force load of the impeller can be reduced; and at the same time, by utilizing walls among holes, centrifugal force at the periphery of the impeller can be transferred and dispersed to the axis or axle hole direction, and the stress distribution of the whole impeller is more uniform and reasonable. Under the condition of using the same manufacturing materials, working can be carried out at a higher linear speed, the performance of the impeller is improved, and a technical foundation is provided for developing the high-performance impeller.
Description
Technical field
The invention belongs to field of fluid machinery, it is related to a kind of impeller of turbomachine, it is specifically a kind of with pore space structure
Light impeller.
Background technology
Turbomachine generally refers to make the energy of fluid working substance be converted to axle by impeller with continuous rotating vane as body
The dynamic power machine of power, such as gas turbine, steam turbine, wind energy conversion system, hydraulic turbine prime movers, it is also possible to refer to by axle power
Energy passes to the dynamic power machine of fluid working substance, such as air blower, water pump, centrifugal-flow compressor working machine by impeller.Impeller
Machinery occupy highly important status in national economy especially whole heavy industry system, be widely used to aviation, power station,
The field such as naval vessel and metallurgy, exploration, chemical industry, building.
Impeller is the part that energy transfer and conversion is carried out by rotary motion and working medium, is the key of whole turbomachine
Part, is generally made up of the wheel disc and the blade being fixed on wheel disc of solid construction.For giving stream by the energy transmission of axle power
For the working machine of body working medium, the peripheral velocity of impeller outlet is the important parameter for influenceing impeller to export energy size, impeller
Rotating speed it is higher, its peripheral velocity is also higher, turbomachine output energy it is bigger.Corresponding, impeller is operationally
Linear velocity is higher, and produced centrifugal force is bigger, and this making material to impeller proposes requirement higher, and the intensity of material is straight
Connect the further raising for constraining impeller outlet linear velocity.In order to obtain rotating speed and performance higher, technical staff generally uses
The measure of high intensity making material improves the linear velocity of impeller outlet, such as, in aero-engine field, compressor, turbine are wide
General use titanium alloy, nickel base superalloy equal strength material higher, but these materials are not only expensive, difficulty of processing is also very
It is high so that the manufacturing cost of impeller is very high, considerably increases the cost of user, also limit its range of application.
The content of the invention
It is an object of the invention to provide a kind of pore space structure formula light impeller, its wheel disc indoor design is porous structure,
Wheel disc weight is mitigated significantly, effectively reduce impeller centrifugal force produced at high speed, same material can be manufactured
Outlet linear velocity impeller higher.So that can just be processed using the relatively low aluminium alloy of intensity needs the titanium alloy could to expire at present
The impeller of sufficient intensity requirement is possibly realized, and the outlet linear velocity higher that cannot be realized at present can be then processed using titanium alloy
Impeller.
The technology used in the present invention principle：Impeller centrifugal stress produced when rotated not only with the line of impeller outlet
Speed is relevant, and also the quality with impeller is relevant, and impeller outlet linear velocity is bigger, quality is bigger, then impeller axle center or axis hole position
Centrifugal stress it is bigger, therefore, if reducing the quality of impeller, the centrifugal stress of impeller axle center or axis hole position will be corresponding
Reduce.The present invention is exactly to mitigate the quality of impeller by setting greater number of hole in impeller internal, and leaf is reduced with this
Wheel axle center or the centrifugal stress of axis hole, and then turning for impeller can be further improved under conditions of blade wheel structure intensity is ensured
Speed, improves the linear velocity of outlet.
The technical solution adopted in the present invention：
A kind of pore space structure formula light impeller, including wheel disc and the blade that is fixed on wheel disc, it is characterized in that wheel disc
Indoor design is multiple hole structure.Wheel disc inside can mitigate the quality of impeller using after multiple hole structure, can both reduce impeller
Centrifugal force load, mitigate the stress loading of axle center or axis hole position, while again using the medium between hole (similar to hole
Hole wall) by the centrifugal force of impeller to axis hole or axis direction dispersion, transmission so that the stress of whole impeller in radial distribution more
Rationally so that impeller can be worked in the case where structural strength is ensured with linear velocity higher.When implementing the present invention, according to
Tradition machinery process technology, can first make solid wheel disc, then be processed by the mode such as punching or drilling, finally in the outer of wheel disc
Surface seals one layer of top layer of covering using modes such as welding；According to 3D printing technique, then can be direct according to design requirement
Produce product.
In irregular setting, i.e., its size, direction and shape can not be limited described hole in principle, can be according to performance need
And to be easy to the processing suitable shape and size of selection, the dynamic balancing of impeller can be realized by counterweight.
As a further improvement on the present invention, hole is axisymmetricly distributed in the inside of wheel disc, can be better achieved dynamic flat
Weighing apparatus.
As a further improvement on the present invention, for preferably dispersive stress, stress concentration is prevented, hole is designed as rule
Shape.The regular shape is regular hexagon cylinder or cylinder.Regular hexagon cylinder, can maximum limit similar to cellular structure
Degree mitigates quality, realizes that material is most saved, but the processing capacity and difficulty of processing of this structure are larger, is relatively adapted to use 3D printing skill
Art is processed.The circle of foregoing regular hexagon inscribe is replaced, the shape of hole is changed into cylinder, although this structure
Cannot accomplish that Impeller Mass is most light, but machining of being more convenient for, can also admirably achieve the effect for mitigating Impeller Mass.
In order to further increase the structural stability of above-mentioned regular hexagon cylinder or cylinder hole impeller, can be by hole
Two-layer or sandwich construction are designed as, are mutually staggered between layers, be connected with thin plate between layers.This structure is more multiple
Miscellaneous, suitable 3D printing technique is processed.
As a further improvement on the present invention, wheel disc is by circumferential edges towards axle center or axis hole direction, between hole between
It is gradually increased away from (wall thickness of hole), so that whole impeller axle center or axis hole direction can bear bigger load.
As a further improvement on the present invention, the axle center of wheel disc or axis hole position are designed as solid construction.Because impeller exists
When rotating at a high speed, the linear velocity of axle center or axis hole is although low, but to undertake the centrifugal force that almost whole impeller is passed over, should
Power is generally maximum, therefore, in the position in axle center or axis hole solid construction is used to increase the structural strength of impeller.
As a further improvement on the present invention, the indoor design of impeller blade is multiple hole structure, and this design can be entered
One step mitigates the quality of impeller.
This pore space structure design concept of the present invention may apply to other components of turbomachine, it is possible to popularization and application
To other field.If being processed into the centrifugal impeller of porous structure with titanium alloy material, the speed of its exit flow is expected to
Reach more than twice velocity of sound, such that it is able to utilize ram effect, when air-flow is from impeller outlet into diffuser, increased using shock wave
Pressure, then pressure ratio is expected to reach 20 or so even more highs so that the pressure ratio of single stage centrifugal compressor reaches unprecedented height,
Can be applied to middle-size and small-size gas turbine and aero-engine.
The present invention can effectively be mitigated impeller total quality, be effectively reduced impeller in height using porous structure, material-saving
Produced centrifugal force under rotating speed, can be replaced that only intensity could be met with high-strength material at present with more low intensive material
It is required that impeller, outlet linear velocity impeller higher can be manufactured under conditions of making material is equal, be develop high-performance leaf
Wheel provides technical foundation.
Brief description of the drawings
Fig. 1 is axial section structural representation of the invention.
Fig. 2 is along line A-A cross-sectional view in Fig. 1.
In figure：1st, blade；2nd, wheel disc；3rd, hole；4th, axis hole.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings and by embodiment, but not as a limitation of the invention.
In the structure shown in Fig. 1,2, pore space structure formula light impeller provided by the present invention, including wheel disc 2 and solid
Due to the blade 1 on wheel disc, the position of axis hole 4 of wheel disc 2 is designed as solid construction, the indoor design at other positions (circumferencial direction)
It is multiple hole structure, hole 3 is designed as regular hexagon cylinder body shape, and direction is axially in parallel with wheel disc, cuts the radial direction of wheel disc
Face is in porous network structure (other positions in addition to axis hole 4 nearby uses solid construction), similar to cellular structure, and by
Circumferential edges progressively reduce towards the direction of axis hole 4, the size of hole, and the spacing between hole is gradually increased (equivalent to hole
Wall thickness is gradually increased), to be stepped up the bearing capacity to centrifugal load.Because using pore space structure, can effectively mitigate wheel disc
Quality, and then mitigate the quality of impeller, such that it is able to reduce the centrifugal force load of impeller, while again can be by the part of impeller outer edge
Centrifugal force load disperses to axis hole direction, transmission so that the stress distribution of whole impeller is more uniform reasonable, it is to avoid near axis hole
Stress it is excessive so that impeller can be worked in the case where structural strength is ensured with linear velocity higher, be to develop high-performance
Impeller provides technical foundation.
According to this pore space structure design concept of the invention, in order to reduce the stress loading that blade is applied to wheel disc, in it
Portion may be designed in pore space structure, and in order to mitigate leaf quality to greatest extent, inner void is designed as regular hexagon cylinder, leaf
The pore space structure of piece is penetrated into the pore space structure of wheel disc, is merged therewith, can both mitigate leaf weight, and then to a greater degree
Mitigate Impeller Mass, the blade on wheel disc is more consolidated again.
When implementing the present invention, the centrifugal impeller of porous structure is processed into titanium alloy material, then the speed of its exit flow
Degree is expected to reach more than twice velocity of sound, and using ram effect, impeller outlet air-flow enters diffuser, using pressure rise across shock envelope, then presses
Than being expected to reach 20 or so even more highs so that the pressure ratio of single stage centrifugal compressor reaches unprecedented height, medium and small
Type gas turbine and aero-engine have the application prospect of light.
When the present invention is implemented, in order to improve the heat-conductive characteristic of impeller, can fill light in part or all of hole
Matter highly heat-conductive material.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of pore space structure formula light impeller, including wheel disc and the blade being fixed on wheel disc, it is characterized in that wheel disc is interior
Portion is designed as multiple hole structure.
2. pore space structure formula light impeller according to claim 1, it is characterised in that：Described hole is in irregular setting.
3. pore space structure formula light impeller according to claim 1, it is characterised in that：Described hole is in the inside of wheel disc
Axial symmetry is distributed.
4. pore space structure formula light impeller according to claim 1, it is characterised in that：Described hole is designed as regular shape
Shape.
5. pore space structure formula light impeller according to claim 4, it is characterised in that：The regular shape is regular hexagon
Cylinder or cylinder.
6. pore space structure formula light impeller according to claim 5, it is characterised in that：Described hole is designed as two-layer or many
Rotating fields, mutually stagger between layers, are connected with thin plate between layers.
7. pore space structure formula light impeller according to claim 1, it is characterised in that：Wheel disc is by circumferential edges towards axle center
Or axis hole direction, the spacing between hole is gradually increased.
8. pore space structure formula light impeller according to claim 1, it is characterised in that：The axle center or axis hole position of wheel disc set
It is calculated as solid construction.
9. pore space structure formula light impeller according to claim 1, it is characterised in that：The indoor design of impeller blade is many
Pore space structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710082059.3A CN106678077A (en) | 2017-02-15 | 2017-02-15 | Porous structure type light impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710082059.3A CN106678077A (en) | 2017-02-15 | 2017-02-15 | Porous structure type light impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678077A true CN106678077A (en) | 2017-05-17 |
Family
ID=58860862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710082059.3A Pending CN106678077A (en) | 2017-02-15 | 2017-02-15 | Porous structure type light impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678077A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035805A (en) * | 2017-12-28 | 2018-05-15 | 深圳市华阳新材料科技有限公司 | One kind uses the molding aero-engine of 3D printing |
| CN108412806A (en) * | 2018-03-01 | 2018-08-17 | 深圳意动航空科技有限公司 | A kind of wheel disc and the compressor with the wheel disc |
| CN109139550A (en) * | 2018-08-14 | 2019-01-04 | 广东美的厨房电器制造有限公司 | Flabellum component and preparation method thereof, fan and household electrical appliance |
| WO2023285510A1 (en) * | 2021-07-15 | 2023-01-19 | KSB SE & Co. KGaA | Lightweight hydraulics design for improved 3d printability |
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| CN2751155Y (en) * | 2004-08-19 | 2006-01-11 | 温州华润电机有限公司 | Electric fuel pump for automobile engine |
| CN1877133A (en) * | 2005-06-09 | 2006-12-13 | 台达电子工业股份有限公司 | Fan and its wheel vane structure |
| CN102536845A (en) * | 2012-01-20 | 2012-07-04 | 张子林 | Modified submersible pump for well |
| CN103573701A (en) * | 2012-07-30 | 2014-02-12 | 广东美的暖通设备有限公司 | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit |
| CN203770170U (en) * | 2014-03-19 | 2014-08-13 | 奇鋐科技股份有限公司 | Thin fan structure |
| CN104329288A (en) * | 2013-10-26 | 2015-02-04 | 张立 | Split assembling type impeller structure |
| CN104929963A (en) * | 2011-04-08 | 2015-09-23 | 台达电子工业股份有限公司 | Fan assembling equipment and fan device thereof |
| WO2018028205A1 (en) * | 2016-08-06 | 2018-02-15 | 中山大洋电机股份有限公司 | Wind wheel and blower using the same |
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2017
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2751155Y (en) * | 2004-08-19 | 2006-01-11 | 温州华润电机有限公司 | Electric fuel pump for automobile engine |
| CN1877133A (en) * | 2005-06-09 | 2006-12-13 | 台达电子工业股份有限公司 | Fan and its wheel vane structure |
| CN104929963A (en) * | 2011-04-08 | 2015-09-23 | 台达电子工业股份有限公司 | Fan assembling equipment and fan device thereof |
| CN102536845A (en) * | 2012-01-20 | 2012-07-04 | 张子林 | Modified submersible pump for well |
| CN103573701A (en) * | 2012-07-30 | 2014-02-12 | 广东美的暖通设备有限公司 | Indoor unit of air conditioner and bidirectional inlet centrifugal wind wheel of indoor unit |
| CN104329288A (en) * | 2013-10-26 | 2015-02-04 | 张立 | Split assembling type impeller structure |
| CN203770170U (en) * | 2014-03-19 | 2014-08-13 | 奇鋐科技股份有限公司 | Thin fan structure |
| WO2018028205A1 (en) * | 2016-08-06 | 2018-02-15 | 中山大洋电机股份有限公司 | Wind wheel and blower using the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035805A (en) * | 2017-12-28 | 2018-05-15 | 深圳市华阳新材料科技有限公司 | One kind uses the molding aero-engine of 3D printing |
| CN108035805B (en) * | 2017-12-28 | 2024-09-13 | 深圳市华阳新材料科技有限公司 | Aeroengine formed by 3D printing |
| CN108412806A (en) * | 2018-03-01 | 2018-08-17 | 深圳意动航空科技有限公司 | A kind of wheel disc and the compressor with the wheel disc |
| CN108412806B (en) * | 2018-03-01 | 2019-11-08 | 深圳意动航空科技有限公司 | A kind of wheel disc and the compressor with the wheel disc |
| CN109139550A (en) * | 2018-08-14 | 2019-01-04 | 广东美的厨房电器制造有限公司 | Flabellum component and preparation method thereof, fan and household electrical appliance |
| WO2023285510A1 (en) * | 2021-07-15 | 2023-01-19 | KSB SE & Co. KGaA | Lightweight hydraulics design for improved 3d printability |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170517 |