CN203847323U - Dual-duct type horizontal shaft breeze wind turbine - Google Patents
Dual-duct type horizontal shaft breeze wind turbine Download PDFInfo
- Publication number
- CN203847323U CN203847323U CN201420220074.1U CN201420220074U CN203847323U CN 203847323 U CN203847323 U CN 203847323U CN 201420220074 U CN201420220074 U CN 201420220074U CN 203847323 U CN203847323 U CN 203847323U
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- Prior art keywords
- duct
- main duct
- horizontal axis
- wind turbine
- wind energy
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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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model discloses a dual-duct type horizontal shaft breeze wind turbine which comprises an electric generator, a horizontal shaft, a support, a horizontal rotating bearing, rotating blades, an outer duct, an inner duct, a hub, diversion blades and a vortex generating device. The diversion blades are evenly distributed along the axis of the hub. The lower ends of the diversion blades are all fixedly connected with the hub, and the upper ends of the diversion blades are all connected with the inner wall of the inner duct. The hub is arranged at the gas inlet end of the inner duct. The vortex generating device is installed outside the gas outlet end of the inner duct, and the inner duct is arranged in the outer duct. The rotating blades are arranged at the gas outlet of the inner duct and located at the downstream position of the diversion blades. Gas outside the wind turbine is led into the rear side of the wind turbine through the outer duct, flow-direction vortex and expansion-direction vortex distributed in an axial symmetry mode are generated behind the vortex generating device, and therefore pumping action is achieved for low-speed gas of the wind turbine, the difference between pressure in front of the wind turbine and the pressure behind the wind turbine is increased, and the utilization rate of wind energy at the breeze level is increased.
Description
Technical field
The utility model relates to a kind of gentle breeze wind energy conversion system, relates in particular to a kind of two culvert type horizontal axis gentle breeze wind energy conversion system.
Background technique
Wind energy conversion system is a kind of taking the sun as thermal source, heat energy utilization motor taking atmosphere as working medium, to promote blade to obtain wind energy by air stream, and converting thereof into the power plant of useful mechanical or electrical energy simultaneously, wind energy is paid much attention to by people as reproducible, free of contamination natural energy resources; But the pneumatic limiting efficiency of changing (being the hereby limit of shellfish) is 59.3% in theory, the wind energy utilization of tradition wind energy conversion system work wind speed range is about 30-45%, the about 10-30% of low speed WECS, wind energy conversion system in the time of low speed usually in idle running or send few electric energy, aspect the Wind Power Utilization of gentle breeze rank (3-4m/s), current wind energy conversion system wind energy utilization is lower both at home and abroad.
Model utility content
The purpose of this utility model is just to provide in order to address the above problem a kind of two culvert type horizontal axis gentle breeze wind energy conversion systems for gentle breeze rank.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises generator, horizontal axis, support, horizontally rotate bearing and rotor blade, described rotor blade is connected with described generator by horizontal axis, and be arranged on described support, the described bearing that horizontally rotates is arranged in described support, described wind energy conversion system also comprises by-pass air duct, main duct, wheel hub, guide vane and vortex generating device, multiple described guide vanes are uniformly distributed along the axle center of described wheel hub, and the lower end of described guide vane is all fixedly connected with described wheel hub, the upper end of multiple described guide vanes is all connected with the inwall of described main duct, described wheel hub is arranged on the air intake of described main duct, described vortex generating device is arranged on the outside of the outlet air end of described main duct, described main duct is arranged in described by-pass air duct, and the medial axis of described main duct and described by-pass air duct is positioned at same level position, described rotor blade is arranged on described main duct exhaust outlet place and is positioned at the downstream of described guide vane.
The air-flow passing through from main duct enters rotor blade runner through guide vane, the rotation of promotion rotor blade, the air-flow entering from by-pass air duct carries out blending with main duct air-flow rotor blade, make it produce the vortex along the circumferential direction distributing axisymmetricly by vortex generating device, take away the low velocity fluid in rotor blade downstream, reduce the pressure of movable vane downstream area, thereby increase the pressure difference before and after rotor blade, improve by the air-flow enthalpy drop of wind energy conversion system, thereby improved wind energy utilization.
Particularly, the middle part of described by-pass air duct inwall and outlet air end are multiplely parallel to the gusset of described horizontal axis and the outer wall of described main duct is fixedly connected with by arranging, and the outer wall of described by-pass air duct is connected with described support.
As preferably, described rotor blade is the rotor blade along the high direction distortion of leaf moulding.
Particularly, 10 petal-shaped guide plates that described vortex generating device is layered laminate by the edge distributing axisymmetricly along described main duct circumferencial direction form.
The beneficial effects of the utility model are:
The two culvert type horizontal axis gentle breeze wind energy conversion systems of the utility model are by introducing the gas in wind energy conversion system outside by by-pass air duct the rear side of wind energy conversion system, and after vortex generating device, produce axisymmetricly distributed flow to exhibition to vortex, produce pumping action with this low velocity gas to wind energy conversion system, the pressure reduction that has increased wind energy conversion system front and back, has improved the wind energy utilization to gentle breeze rank.
Brief description of the drawings
Fig. 1 is the scheme of installation of described in the utility model pair of culvert type horizontal axis gentle breeze wind energy conversion system;
Fig. 2 is the plan view of described in the utility model pair of culvert type horizontal axis gentle breeze wind energy conversion system;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is the plan view of main duct described in the utility model and described vortex generating device;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the installation plan view of guide vane described in the utility model and described rotor blade;
Fig. 7 is the side view of Fig. 6;
Fig. 8 is the plan view of rotor blade described in the utility model;
Fig. 9 is the side view of Fig. 8.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figures 1 to 9, the two culvert type horizontal axis gentle breeze wind energy conversion systems of the utility model, comprise generator 6, horizontal axis 3, support 7, horizontally rotate bearing 8, by-pass air duct 5, main duct 4, wheel hub 11, guide vane 1, the vortex generating device 9 forming along the rotor blade 2 of the high direction distortion of leaf moulding and 10 the petal-shaped guide plates that are layered laminate by the edge distributing axisymmetricly along main duct 4 circumferencial directions, horizontally rotating bearing 8 is arranged in support 7, rotor blade 2 is connected with generator 6 by horizontal axis 3, and be arranged on main duct 4 exhaust outlet places and be positioned at the downstream of guide vane 1, wheel hub 11 is arranged on the air intake of main duct 4, multiple guide vanes 1 are uniformly distributed along the axle center of wheel hub 11, and the lower end of guide vane 1 is all fixedly connected with wheel hub 11, the upper end of multiple guide vanes 1 is all connected with the inwall of main duct 4, vortex generating device 9 is arranged on the outside of the outlet air end of main duct 4, main duct 4 is arranged in by-pass air duct 5, and main duct 4 is positioned at same level position with the medial axis of by-pass air duct 5, the middle part of by-pass air duct 5 inwalls is fixedly connected with the outer wall of main duct 4 by multiple gussets that are parallel to horizontal axis 3 are set with outlet air end, the outer wall of by-pass air duct 5 is connected with support 7.
The working principle of the two culvert type horizontal axis gentle breeze wind energy conversion systems of the utility model is as follows:
This wind energy conversion system is in the time of work, and the air-flow passing through from main duct 4 enters rotor blade 2 runners through guide vane, promotes rotor blade 2 rotation actings, and airspeed reduces simultaneously; And enter the air-flow of the by-pass air duct 5 of convergence type, acceleration through by-pass air duct 5 has higher wind speed, the air-flow generation blending that this strand of air-flow flows out with main duct 4 through by-pass air duct 5 and after being positioned at the downstream of by-pass air duct 5 and being arranged on the vortex generating device 9 of main duct 4 exhaust outlets, on the one hand, by-pass air duct 5 high velocity airs can carry away the low speed flow in main duct 4 rotor blade 2 downstreams; On the other hand, the air-flow of two bursts of different in flow rate is due to blending occurring, produce vortex at main duct 4 with the interface place of by-pass air duct 5, and downstream, in reducing by-pass air duct 5 downstream pressures, further reduce the pressure of main duct 4 rotor blade 2 downstream areas, increase the pressure difference of rotor blade 2 front and back, improve by the enthalpy drop of wind energy conversion system intension air-flow, thereby improved the utilization ratio of gentle breeze rank wind energy, realized under low wind speed wind energy to the Efficient Conversion of mechanical energy.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection domain of the present utility model.
Claims (4)
1. a two culvert type horizontal axis gentle breeze wind energy conversion system, comprise generator, horizontal axis, support, horizontally rotate bearing and rotor blade, described rotor blade is connected with described generator by horizontal axis, and be arranged on described support, the described bearing that horizontally rotates is arranged in described support, it is characterized in that: also comprise by-pass air duct, main duct, wheel hub, guide vane and whirlpool generating means, multiple described guide vanes are uniformly distributed along the axle center of described wheel hub, and the lower end of described guide vane is all fixedly connected with described wheel hub, the upper end of multiple described guide vanes is all connected with the inwall of described main duct, described wheel hub is arranged on the air intake of described main duct, described whirlpool generating means is arranged on the outside of the outlet air end of described main duct, described main duct is arranged in described by-pass air duct, and the medial axis of described main duct and described by-pass air duct is positioned at same level position, described rotor blade is arranged on described main duct exhaust outlet place and is positioned at the downstream of described guide vane.
2. according to claim 1 pair of culvert type horizontal axis gentle breeze wind energy conversion system, it is characterized in that: the middle part of described by-pass air duct inwall and outlet air end are multiplely parallel to the gusset of described horizontal axis and the outer wall of described main duct is fixedly connected with by arranging, and the outer wall of described by-pass air duct is connected with described support.
3. according to claim 1 pair of culvert type horizontal axis gentle breeze wind energy conversion system, is characterized in that: described guide vane and rotor blade are the rotor blade along the high direction distortion of leaf moulding.
4. according to claim 1 pair of culvert type horizontal axis gentle breeze wind energy conversion system, is characterized in that: 10 petal-shaped guide plates that described whirlpool generating means is layered laminate by the edge distributing axisymmetricly along described main duct circumferencial direction form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220074.1U CN203847323U (en) | 2014-04-30 | 2014-04-30 | Dual-duct type horizontal shaft breeze wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220074.1U CN203847323U (en) | 2014-04-30 | 2014-04-30 | Dual-duct type horizontal shaft breeze wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847323U true CN203847323U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420220074.1U Expired - Fee Related CN203847323U (en) | 2014-04-30 | 2014-04-30 | Dual-duct type horizontal shaft breeze wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939279A (en) * | 2014-04-30 | 2014-07-23 | 哈尔滨工业大学 | Double-duct horizontal shaft breeze wind turbine |
| CN108412668A (en) * | 2018-02-12 | 2018-08-17 | 长沙理工大学 | A kind of double duct hydraulic turbine electric generator systems |
-
2014
- 2014-04-30 CN CN201420220074.1U patent/CN203847323U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939279A (en) * | 2014-04-30 | 2014-07-23 | 哈尔滨工业大学 | Double-duct horizontal shaft breeze wind turbine |
| CN108412668A (en) * | 2018-02-12 | 2018-08-17 | 长沙理工大学 | A kind of double duct hydraulic turbine electric generator systems |
| CN108412668B (en) * | 2018-02-12 | 2020-03-27 | 长沙理工大学 | Double-duct water turbine power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |