CN202533256U - Experimental apparatus for blades of tidal current energy hydraulic turbine - Google Patents
Experimental apparatus for blades of tidal current energy hydraulic turbine Download PDFInfo
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- CN202533256U CN202533256U CN2012202137946U CN201220213794U CN202533256U CN 202533256 U CN202533256 U CN 202533256U CN 2012202137946 U CN2012202137946 U CN 2012202137946U CN 201220213794 U CN201220213794 U CN 201220213794U CN 202533256 U CN202533256 U CN 202533256U
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- 238000006073 displacement reaction Methods 0.000 claims description 51
- 238000011056 performance test Methods 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000002474 experimental method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003068 static effect Effects 0.000 abstract 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model belongs to the filed of new energy and relates to an experimental apparatus for blades of a tidal current energy hydraulic turbine. The experimental apparatus comprises a platform, a static blade shaft, a static blade, a shift bracket upper arm, a shift bracket lower arm, a shift bracket shaft, a rotary blade shaft and a rotary blade. The experimental apparatus is mounted on an opened water tank, and when an experiment is operated, different positions of the static blade and the rotary blade are regulated by rotating the static blade shaft, the rotary blade shaft and the shift bracket shaft, thus work conditions of the blades of the tidal current energy hydraulic turbine can be comparatively and really simulated, and a variable attack angle performance test to the blades, a performance test to the blades with different mounting angles, a blade performance test operated under a condition of a full revolution of the hydraulic turbine and a performance test to a mutual interference effect of blades of the hydraulic turbine can be achieved. The experiment apparatus solves problems that a hydraulic performance test to the tidal current energy hydraulic turbine is difficult; a period of the hydraulic performance test to the tidal current energy hydraulic turbine is long; a difference between tested work conditions with real work conditions is comparatively large.
Description
Technical field
The utility model belongs to new energy field, and relating to a kind of trend can the turbine blade experimental provision.
Technical background
Trend can be available regenerative resource, and under energy scarcity and ecological deterioration dual-pressure, trend can become the most active branch of field of energy source developing technology.Trend can the hydraulic turbine be the core ingredient of tidal power generating system, and according to the situation of its structure operation, trend can the hydraulic turbine can be divided into two types of transverse axis and Z-axises.
The trend ability hydraulic turbine is different with the principle of work of the traditional water power station hydraulic turbine, is a kind of hydraulic turbine that does not have pressure drop or low water head, and is close with the ultimate principle of wind energy conversion system, converts fluid dynamic energy into mechanical energy, and the title of " underwater windmill " is arranged.Blade is the core component of the hydraulic turbine, and contour structures, surfaceness and the material behavior etc. of the molded lines of blade (abbreviating blade profile in the industry as), blade directly affect the hydraulic performance of the hydraulic turbine.For the blade of the suitable trend ability of the development research hydraulic turbine, experimental study work is that very fundamental sum is necessary, and it is irreplaceable to be still existing theoretical analysis and numerical computation method institute.
The hydraulic performance experimental technique of trend ability turbine blade has three kinds at present; The first is carried out trend ability hydraulic turbine complete machine performance test, but cost of equipment is high, the cycle is long, especially under the situation of blade rotation; Be difficult to measure near the flow field characteristic of blade, can only obtain the overall performance of the hydraulic turbine; It two is blowing experiments of on wind channel, carrying out vane type line; Though on wind-tunnel, carry out the blade profile experiment ripe method is arranged; Be easy to realize the detailed measurements near flow field blade surface and the blade, and expense is lower, the cycle is shorter; But because the difference of these two kinds of working medium of empty G&W, viscosity and compressible difference can't accurately be verified the influence of Blade Properties; It three is on the closed cycle water hole, to carry out Blade Properties experiment; But the experiment of carrying out at present mainly is the Blade Properties to the traditional water power station hydraulic turbine; The experimental data that obtains is the cascade performance that a plurality of blades are formed; Because the trend ability hydraulic turbine is different with the principle of work of the traditional water power station hydraulic turbine, exists test operating mode and the bigger problem of hydraulic turbine real work operating mode difference, can't measure the mutual interference effect between trend ability turbine blade especially; Experimental result and truth differ greatly, and using value is not high.
Because the trend ability hydraulic turbine is different with the principle of work of the traditional water power station hydraulic turbine, in order to solve the hydraulic performance test problem of trend ability turbine blade, proposing a kind of trend can the turbine blade experimental provision.
The utility model content
In order to solve the blade hydraulic performance test problem of the trend ability hydraulic turbine; Propose a kind of trend ability turbine blade experimental provision, comprising: stand, stator blade bobbin, stator blade, displacement bracket upper arm, displacement support underarm, displacement support shaft, moving blade axle, moving blade.Stator blade is installed on the stator blade bobbin, is connected with stand through the stator blade bobbin; Displacement bracket upper arm, displacement support underarm, displacement support shaft connect into an integral body, are connected with stand through the displacement support shaft; Moving blade is installed on the moving blade axle, and the moving blade axle is connected with displacement support underarm with the displacement bracket upper arm through the through hole of displacement bracket upper arm and displacement support underarm.
Stand is the connection basis of whole device, is one flat plate.
The displacement bracket upper arm is that xsect is the long pole of rectangle, the through hole that to have 3 ~ 5 diameters above that be 15mm.
Displacement support underarm is that xsect is leg-of-mutton long pole, the through hole that to have 3 ~ 5 diameters above that be 15mm, and the position in hole is identical with the hole site of displacement bracket upper arm.
The displacement support shaft is a long pole, and an end has disk.
The beneficial effect of the utility model: this device is installed on the open type tank; On the enclosed water hole with wind-tunnel on the Blade Properties experiment; This device can be simulated the work operating mode of trend ability turbine blade more truly; The Blade Properties data of test more near trend can turbine blade truth, can accomplish trend can the blade of the hydraulic turbine between interference effect test each other, the test of different established angle, the examination of out of phase angular measurement, also have the characteristics that are easy to realize simultaneously; Than trend can the hydraulic turbine the complete machine performance test, have test period short, testing cost is low, the advantage of convenient test.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of trend ability turbine blade experimental provision.
Fig. 2 is the connection synoptic diagram of stator blade, stator blade bobbin.
Fig. 3 is the connection synoptic diagram of moving blade, moving blade axle.
Fig. 4 is the connection synoptic diagram of displacement bracket upper arm, displacement support underarm, displacement support shaft.
Fig. 5 is the various viewpoint definition figure of trend ability turbine blade, and X-X is the center line of stand among the figure, and arrow is represented water (flow) direction, and a is the phasing degree of blade, and b is the established angle of blade, and i is the angle of attack of blade.Each viewpoint definition is: the angle of displacement bracket upper arm center line and whole device center line is defined as phasing degree a; Blade inlet edge point is defined as established angle b with the angle of trailing edge point line and displacement bracket upper arm center line, and the angle of blade mean camber line leading edge tangential direction and water (flow) direction is defined as angle of attack i.
Among the figure: 1 stand, 2 stator blade bobbins, 3 stator blades, 4 displacement bracket upper arm, 5 displacement support underarms, 6 displacement support shafts, 7 moving blade axles, 8 moving blades.
Embodiment
As shown in the figure, the trend of the utility model can be made up of stand 1, stator blade bobbin 2, stator blade 3, displacement bracket upper arm 4, displacement support underarm 5, displacement support shaft 6, moving blade axle 7, moving blade 8 by the turbine blade experimental provision.Stator blade 3 is installed in (like Fig. 2) on the stator blade bobbin 2, is connected with stand 1 through stator blade bobbin 2; Displacement bracket upper arm 4, displacement support underarm 5, displacement support shaft 6 connect into an integral body (like Fig. 4), are connected with stand 1 through displacement support shaft 6; Moving blade 8 is installed in (like Fig. 3) on the moving blade axle 7, and moving blade axle 7 is through coupled the connecing of through hole of displacement bracket upper arm 4 and displacement support underarm 5.
This device is installed in the top of open type tank, should guarantee during installation that water (flow) direction is as shown in Figure 5, and the experimental data acquisition system is placed on stand top, and data acquisition system (DAS) comprises force balance, pitot tube speed measuring device, blade surface pressure transducer or the like.During experiment, through rotation stator blade bobbin 2, moving blade axle 7, displacement support shaft 7, the diverse location of adjustment stator blade 3 and moving blade 8 can be simulated near the trend ability hydraulic turbine flow field blade under the different operating modes, carries out the test of blade hydraulic performance.Several specific embodiments of at present giving an example describe.
Specific embodiment 1
The blade of the trend ability hydraulic turbine becomes angle of attack performance test.Because stator blade is installed on the stator blade bobbin, can realize the change of stator blade angle of attack i through the rotation of stator blade bobbin, carry out the Blade Properties test at the leaf position of different angle of attack values, accomplish trend and can the Blade Properties of turbine blade under the different angles of attack test.
Blade Properties test under different established angles.Because moving blade is installed on the moving blade axle, can realize the change of moving blade established angle b through the rotation of moving blade axle, can carry out trend can the performance test of turbine blade under different established angles.
Blade Properties test when the hydraulic turbine rotates a circle.Cooperation rotation through moving blade axle and displacement support shaft; Can realize the different established angle b of moving blade and the various combination of out of phase angle a; Carry out the performance test of trend ability turbine blade when different circumferential position, and then obtain the performance of trend ability turbine blade when rotating a circle.
The performance test of interference effect each other between the turbine blade.Through changing the moving blade axle in the installation site of displacement bracket upper arm with the different holes of displacement support underarm; The distance of adjustment stator blade and moving blade; Further can be through the cooperation rotation of stator blade bobbin and moving blade axle; Can simulate under the condition of different water flow path direction, the upstream blade tail is accomplished the performance test of interference effect each other between the trend ability turbine blade to the performance impact zone of downstream blade.
In sum; This device can simulate trend can the hydraulic turbine most of real work operating mode during work, accomplish the performance test that blade becomes mutual interference effect between angle of attack performance test, the test of the Blade Properties under different established angles, the test of the Blade Properties the when hydraulic turbine rotates a circle, the turbine blade.Solved trend can turbine blade long, test operating mode of hydraulic performance test difficulty, test period and the bigger problem of real work operating mode difference; Have test period short, testing cost is low, the advantage of convenient test, also has the characteristics that are easy to realize simultaneously.When using this device to experimentize test, also exist rotation operating mode that causes owing to non-permanent effect and the difference of testing operating mode certainly, but aspect the hydraulic performance of blade, this factor is more less important.
Claims (1)
1. a trend ability turbine blade experimental provision comprises stand (1), stator blade bobbin (2), stator blade (3), displacement bracket upper arm (4), displacement support underarm (4), displacement support shaft (6), moving blade axle (7) and moving blade (8); It is characterized in that: stator blade (3) is installed on the stator blade bobbin (2), is connected with stand (1) through stator blade bobbin (2); Displacement bracket upper arm (4), displacement support underarm (5) and displacement support shaft (6) connect into an integral body, are connected with stand (1) through displacement support shaft (6); Moving blade (8) is installed on the moving blade axle (7), and moving blade axle (7) is connected with displacement support underarm with the displacement bracket upper arm through the through hole of displacement bracket upper arm (4) and displacement support underarm (5); Displacement bracket upper arm (4) is that xsect is the long pole of rectangle, the through hole that to have 3 ~ 5 diameters above that be 15mm; Displacement support underarm (5) is that xsect is leg-of-mutton long pole, the through hole that to have 3 ~ 5 diameters above that be 15mm, and the position in hole is identical with the hole site of displacement bracket upper arm (4); Displacement support shaft (6) is a long pole, and an end has disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202137946U CN202533256U (en) | 2012-05-14 | 2012-05-14 | Experimental apparatus for blades of tidal current energy hydraulic turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202137946U CN202533256U (en) | 2012-05-14 | 2012-05-14 | Experimental apparatus for blades of tidal current energy hydraulic turbine |
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| Publication Number | Publication Date |
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| CN202533256U true CN202533256U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202137946U Expired - Fee Related CN202533256U (en) | 2012-05-14 | 2012-05-14 | Experimental apparatus for blades of tidal current energy hydraulic turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680222A (en) * | 2012-05-14 | 2012-09-19 | 大连理工大学 | Blade experiment device for tidal current energy water turbine |
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2012
- 2012-05-14 CN CN2012202137946U patent/CN202533256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680222A (en) * | 2012-05-14 | 2012-09-19 | 大连理工大学 | Blade experiment device for tidal current energy water turbine |
| CN102680222B (en) * | 2012-05-14 | 2014-06-25 | 大连理工大学 | Blade experiment device for tidal current energy water turbine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20130514 |