CN103016408A - One-dimensional linear hollow guide vane - Google Patents
One-dimensional linear hollow guide vane Download PDFInfo
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- CN103016408A CN103016408A CN2012105590805A CN201210559080A CN103016408A CN 103016408 A CN103016408 A CN 103016408A CN 2012105590805 A CN2012105590805 A CN 2012105590805A CN 201210559080 A CN201210559080 A CN 201210559080A CN 103016408 A CN103016408 A CN 103016408A
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- guide vane
- groove
- dimensional linear
- vane
- hollow guide
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Abstract
The invention belongs to the technical field of turbomachines, and particularly relates to a one-dimensional linear hollow guide vane applied to compressors. In order to solve the problem that the damage rate of compressor impellers with guide vanes is high at present, the invention provides the one-dimensional linear hollow guide vane which can reduce the wake vortex, a guide vane body is provided with a groove from a vane root to a vane tip, and the groove is provided with two slots which lead to the trailing edge of the guide vane body. The structure of the one-dimensional linear hollow guide vane is simple, and compared with like products, the one-dimensional linear hollow guide vane has the remarkable beneficial effects that because the section of the groove in the guide vane is round or elliptic, intake is more smooth; the fluidity effect of the two slots of the groove of the guide vane leading to the tailing edge of the guide vane is far better than the fluidity effect of a single slot, the attenuation of the wake vortex generated by fluid passing through the two slots is the fastest, and therefore the effect of reducing the wake vortex is achieved; the original design of the vane is kept from the leading edge to the middle part, flow control needed by the guide vane and a pre-whirl function can also be provided, and therefore the original function of the guide vane cannot be affected by the novel structure.
Description
Technical field
The invention belongs to the turbomachinery technical field, particularly a kind of stator that is applied to compressor (pump).
Background technique
Multi-field in national economy, carry widely the pressure of gas and raising gas in the departments such as particularly again mining, oil, chemical industry, refrigeration, power and metallurgy with compressor, so that centrifugal compressor becomes the critical machine of various gases in compression and the production, occupy and consequence.Along with the achievement of gas dynamics research improves constantly the efficient of centrifugal compressor, the application area of centrifugal compressor is greatly expanded, and enlarged application area widely.When centrifugal compressor and pipe network joint work, often needed by the change that requires to change gas flow and necessary inlet whirl is provided, so add the performance that stator is regulated compressor in import.The adding of entry guide vane; although solved the problem of inlet whirl and flow control; but produced new problem: because the sound interference effect between entry guide vane and impeller and stator trailing vortex are on the impact in follow-up flow field; this trailing vortex eddy current effect is to compressor impeller; thereby the impact that makes impeller be subject to air-flow makes more easy-rupturing, produces the more serious problems such as shutdown.
To sum up, consider the advantage of entry guide vane, the tail eddy current behind the reduction entry guide vane is the key that reduces the accident of compressor.
Multi-field in national economy, carry widely the pressure of gas and raising gas in the departments such as particularly again mining, oil, chemical industry, refrigeration, power and metallurgy with compressor, so that centrifugal compressor becomes the critical machine of various gases in compression and the production, occupy and consequence.Along with the achievement of gas dynamics research improves constantly the efficient of centrifugal compressor, the application area of centrifugal compressor is greatly expanded, and enlarged application area widely.When the centrifugal compressor design reaches with the pipe network joint work, the frequent raising that need to be changed gas flow and pressure by the change of service condition needs the vane diffuser project organization, and therefore the performance of the inlet whirl of necessity with the adjusting compressor being provided, installing vane diffuser additional at impeller outlet at compressor inlet adding stator is essential to improve outlet pressure.Being added in when solving design requirement of these stators; can bring dynamic and static interference effect between stator and impeller and the impact in stator trailing vortex vortex pair flow field; this trailing vortex eddy current effect is to compressor impeller; thereby the impact that makes impeller be subject to air-flow makes more easy-rupturing, produces the more serious problems such as shutdown.
To sum up, the tail eddy current behind the reduction stator is that raising compressor efficiency, reduction destroy the key that is directed at the compressor serious accident by the impeller that the trailing vortex eddy current causes.
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem, provide one-dimensional linear hollow guide vane, simple and reasonable, the tail eddy current behind the minimizing stator is to solve at present with the high problem of the compressor impeller spoilage of stator.
For achieving the above object, the present invention by the following technical solutions: the hollow guide vane of one-dimensional linear, comprise the stator body, have one on the described stator body from the groove on the through leaf top of blade root, in groove, open two conduits that lead to stator body trailing edge place.
Preferably, the distance on the leaf of the top of described groove and stator body top is 1/6～1/7 of stator body height.
Preferably, the cross section of described groove is circular or oval, and the longitudinal cross-section of groove is trapezoidal.
Preferably, the leading edge place is partial at the described groove middle part that is positioned at the stator body.
The present invention is simple in structure, has compared with similar products significant beneficial effect: the inner recessing of stator, and its cross section makes air inlet more steady for circle or oval; The stator groove leads to stator trailing edge place opens the twice conduit, and the flow effect of double conduit is apparently higher than single conduit, and double conduit fluid is the fastest by the tail eddy current decay that produces afterwards, thereby reaches the effect that reduces the tail eddy current; The stator leading edge keeps original design to the middle part, the due flow control of stator can also be provided and the function of prewhirling is provided, so this new structure does not affect its former function.
Description of drawings
Fig. 1 is 3 D stereo schematic representation of the present invention;
Fig. 2 is plan view of the present invention;
Fig. 3 is that the A-A of Fig. 2 is to sectional drawing;
Fig. 4 is position view of the present invention.
Among the figure: 1 stator; 2 impeller blades; 3 wheel hubs; 4 grooves; 5 first conduits; 6 second conduits.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
The present invention is further described in conjunction with technique scheme and accompanying drawing.
The hollow guide vane of one-dimensional linear as Figure 1-3, the stator that adopts is type blade wide at the top and narrow at the bottom, comprise stator body 1, have one on the stator body 1 and push up 102 groove 4 from the through leaves of blade root 101, in groove, open two conduits that lead to stator body 1 trailing edge place, be respectively the first conduit 5 and the second conduit 6; The distance on the leaf of the top of groove 4 and stator body 1 top 102 be stator body 1 height 1/6～1/7; The cross section of groove 4 is circular or oval, and the longitudinal cross-section of groove 4 is trapezoidal.
Groove 4 is positioned at the middle part of stator body 1 and is partial to the leading edge place, and the blade root place reserves some gaps, for use in stator is installed.The mounting type of stator is consistent with common stator.The first conduit 5, the second conduit 6 are positioned at the trailing edge that penetrates into stator behind the circular groove 4.
As shown in Figure 4, before stator 1 places compressor inlet, be fixed on the spiral case during use.
Claims (4)
1. hollow guide vane of one-dimensional linear, comprise the stator body, it is characterized in that: have one on the described stator body (1) from the groove (4) on the through leaf top of blade root (101) (102), open two conduits that lead to stator body (1) trailing edge place in the groove (4).
2. the hollow guide vane of one-dimensional linear as claimed in claim 1 is characterized in that: the distance on the leaf top (102) of the top of described groove (4) and stator body (1) is 1/6～1/7 of stator body (1) height.
3. the hollow guide vane of one-dimensional linear as claimed in claim 1 or 2, it is characterized in that: the cross section of described groove (4) is for circular or oval, and the longitudinal cross-section of groove (4) is trapezoidal.
4. the hollow guide vane of one-dimensional linear as claimed in claim 3, it is characterized in that: described groove (4) is positioned at the middle part of stator body (1) and is partial to the leading edge place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559080.5A CN103016408B (en) | 2012-12-21 | 2012-12-21 | A kind of one-dimensional linear hollow guide vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559080.5A CN103016408B (en) | 2012-12-21 | 2012-12-21 | A kind of one-dimensional linear hollow guide vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016408A true CN103016408A (en) | 2013-04-03 |
| CN103016408B CN103016408B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210559080.5A Active CN103016408B (en) | 2012-12-21 | 2012-12-21 | A kind of one-dimensional linear hollow guide vane |
Country Status (1)
| Country | Link |
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| CN (1) | CN103016408B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071594A (en) * | 2017-07-28 | 2018-05-25 | 林佳 | The steady low formula boiler feed pump that shakes of water conservancy diversion |
| CN113135265A (en) * | 2021-04-07 | 2021-07-20 | 大连理工大学 | Towing navigation body support with unequal upper and lower surfaces |
| CN113790175A (en) * | 2021-09-22 | 2021-12-14 | 大连海事大学 | Radial air inlet chamber for improving guide vane wake vortex |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694102A (en) * | 1969-07-26 | 1972-09-26 | Daimler Benz Ag | Guide blades of axial compressors |
| US4180371A (en) * | 1978-03-22 | 1979-12-25 | Avco Corporation | Composite metal-ceramic turbine nozzle |
| CN1637246A (en) * | 2003-12-22 | 2005-07-13 | 联合工艺公司 | Airfoil surface impedance modification for noise reduction in turbofan engines |
| CN101109395A (en) * | 2007-08-09 | 2008-01-23 | 上海交通大学 | Impeller mechanical wing profile with suction edge injection |
| EP1998003A2 (en) * | 2007-05-29 | 2008-12-03 | United Technologies Corporation | Noise control cassette for a gas turbine engine |
| CN203214436U (en) * | 2012-12-21 | 2013-09-25 | 大连理工大学 | One-dimensional linear hollow guide vane |
-
2012
- 2012-12-21 CN CN201210559080.5A patent/CN103016408B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3694102A (en) * | 1969-07-26 | 1972-09-26 | Daimler Benz Ag | Guide blades of axial compressors |
| US4180371A (en) * | 1978-03-22 | 1979-12-25 | Avco Corporation | Composite metal-ceramic turbine nozzle |
| CN1637246A (en) * | 2003-12-22 | 2005-07-13 | 联合工艺公司 | Airfoil surface impedance modification for noise reduction in turbofan engines |
| EP1998003A2 (en) * | 2007-05-29 | 2008-12-03 | United Technologies Corporation | Noise control cassette for a gas turbine engine |
| CN101109395A (en) * | 2007-08-09 | 2008-01-23 | 上海交通大学 | Impeller mechanical wing profile with suction edge injection |
| CN203214436U (en) * | 2012-12-21 | 2013-09-25 | 大连理工大学 | One-dimensional linear hollow guide vane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071594A (en) * | 2017-07-28 | 2018-05-25 | 林佳 | The steady low formula boiler feed pump that shakes of water conservancy diversion |
| CN113135265A (en) * | 2021-04-07 | 2021-07-20 | 大连理工大学 | Towing navigation body support with unequal upper and lower surfaces |
| CN113790175A (en) * | 2021-09-22 | 2021-12-14 | 大连海事大学 | Radial air inlet chamber for improving guide vane wake vortex |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016408B (en) | 2016-03-02 |
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