CN107989828A - A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device - Google Patents
A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device Download PDFInfo
- Publication number
- CN107989828A CN107989828A CN201810039598.3A CN201810039598A CN107989828A CN 107989828 A CN107989828 A CN 107989828A CN 201810039598 A CN201810039598 A CN 201810039598A CN 107989828 A CN107989828 A CN 107989828A
- Authority
- CN
- China
- Prior art keywords
- shear web
- hole
- fixator
- blade
- hawser
- 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.)
- Granted
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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
-
- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The present invention relates to a kind of anti-blade suitable for trunnion axis wind turbine to throw winged safety device, belongs to wind turbine technical field.The device includes anti-throw and flies device and throw to fly to judge warning device；Anti- throw flies device, including fixator, wheel and wheel hub end fixator between fan blade, shear web, hole, hawser, shear web；Throw and fly to judge prior-warning device, including tension sensor, signal detection processing module, judge controller and signal transmission module.If tension sensor detects that the tension force of hawser is significantly increased to beyond default safety value suddenly, leaf destruction is diagnosed, and can confirm the approximate location of fracture generation between the hole corresponding to two tension sensors of tensioning.Warning message is transferred to control centre by signal transmission module, while is slowed down to wind turbine or shutdown operation.The present apparatus have it is cheap, it is simple in structure, it is easy for installation the advantages that.The present invention greatly improves the reliability and security during fan operation.
Description
Technical field
The present invention relates to a kind of anti-blade suitable for trunnion axis wind turbine to throw winged safety device, belongs to wind turbine technology neck
Domain.
Background technology
During fan operation, fan blade is rotated with surrounding fan rotor at a high speed.When fan blade is broken, wind turbine
Blade can be flown out with throwing at a high speed.Thrown winged blade high degree threatened around wind turbine vehicular traffic and the life of resident and
Property safety.Therefore, world community is required for setting the place of safety of certain distance around wind field.The place of safety high degree
Land resource is wasted, the initial construction cost of wind field is improved, is unfavorable for popularization and application of the wind energy as clean energy resource.
The content of the invention
The present invention provides a kind of device that can reduce injury caused by fan blade fracture throwing flies, and is thrown in leaf destruction winged
Quick early warning after generation.
Technical scheme：
A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device, and the anti-blade throws winged safety device
Fly device and throw to fly to judge warning device including anti-throw；
The anti-throwing flies fixator between device, including fan blade 1, shear web 2, hole 3, hawser 4, shear web
5th, wheel hub 6 and wheel hub end fixator 7；The shear web 2 totally two, fan blade 1 is installed on along horizontal direction parallel
Inside, two sides of shear web 2 are separately fixed on the inner wall of fan blade 1；It is provided with the shear web 2 multigroup
Symmetrical hole 3；Wheel hub end fixator 7 is installed on the wheel hub 6；The hawser 4 sequentially passes through institute's hole 3, its
One end is fixed on the blade tip inner wall of fan blade 1, and the other end is fixed on wheel hub end fixator 7；Between the shear web
Fixator 5 is installed on the hawser 4 between every group of hole 3, and the size of fixator 5 is more than the diameter of hole 3 between shear web；
The throwing flies to judge prior-warning device, including tension sensor 8, signal detection processing module, judge controller and
Signal transmission module；The tension sensor 8 is installed on the hawser 4 on same shear web 2 between adjacent holes 3；Tension force
Sensor 8, which produces data and is transferred to by signal detection processing module, to be judged in controller, signal transmission module judges control
The warning message that device is sent is transferred to control centre.
Beneficial effects of the present invention：The present apparatus have it is cheap, it is simple in structure, it is easy for installation the advantages that.Pole of the present invention
The big reliability and security that improve during fan operation.
Brief description of the drawings
Fig. 1 is that blade interior divides schematic diagram.
Fig. 2 is hub portion schematic diagram.
Wherein：1 fan blade；2 shear webs；3 holes；4 hawsers；Fixator between 5 shear webs；6 wheel hubs；7 hub ends
Fixator；8 tension sensors.
Embodiment
Below in conjunction with attached drawing and technical solution, embodiment of the invention is further illustrated.
A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device, as depicted in figs. 1 and 2.Ensureing wind turbine
On the premise of blade strength meets the requirements, perforate some (1 to 15) group hole 3 on the shear web 2 of fan blade 1, for hawser 4
Pass through.Hawser one end sequentially passes through every group of hole 3.
Hole 3 should not influence blade overall structure reliability.Hole 3 since root of blade to blade tip number consecutively, it is right
Numbered respectively with alphabetical a and b in two shear webs, hole 3-5a and hole 3-5b are represented with hole group 3-5.
Hawser 4 can be tensioning state, or relaxed state, but it is ensured that cable slack length fracture occur with
Afterwards, breaking portion is not hit with wind turbine other parts.
On hawser between every group of hole, increase a fixator 5 bigger than hole.Fixator 5 should ensure that blade at it
During the rear end fracture of corresponding opening, it can be stuck in hole 3.The hawser 4 for connecting adjacent holes 3 on same shear web 2 is matched somebody with somebody
Standby tensile strain sensor 8.
4 other end of hawser is fixed on the fixator 7 at 6 center of wheel hub.Fixator 7 is rotated with wheel hub 6 and blade 1.
Tension sensor 8 produces data and is transferred to judgement controller by signal detection processing module.If fan blade is sent out
Raw to be broken, then two groups of closest hawsers of the section tense, and fixator 5 is stuck at its corresponding hole 3 between shear web.Such as
Fruit tension sensor 8 detects that the tension force of hawser 4 is significantly increased to beyond default safety value suddenly, diagnoses leaf destruction, and can
Confirm the approximate location of fracture generation between the hole corresponding to two tension sensors 8 of tensioning.Signal transmission module will
Warning message is transferred to control centre.
Slowed down at the same time to wind turbine or shutdown operation, the counter productive after flying is thrown in the hope of at utmost reducing blade.
For example, in operation, for some reason, its blade is broken between hole group 3-5 and hole group 3-6.
If connection hole group 3-5 is connected with the hawser 4 between hole group 3-6 by hole 3-5a with hole 3-6a, hole group 3-5 and hole
Fixator 5 is stuck in the position of hole group 3-5 and hole group 3-6 between the corresponding shear webs of hole group 3-6.Hole 3-5a and hole 3-
Tension sensor 8 between 6a detects that hawser 4 is tensioned and tension force exceeds default safety value, sends alarm, wind turbine is stopped.
Claims (1)
1. a kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device, it is characterised in that the anti-blade, which is thrown, to fly
Safety device include it is anti-throw fly device and throw fly judge warning device；
The anti-throwing flies solid between device, including fan blade (1), shear web (2), hole (3), hawser (4), shear web
Determine device (5), wheel hub (6) and wheel hub end fixator (7)；The shear web (2) totally two, is installed along horizontal direction parallel
In the inside of fan blade (1), two sides of shear web (2) are separately fixed on the inner wall of fan blade (1)；Described is anti-
Multigroup symmetrical hole (3) is provided with shear web (2)；Wheel hub end fixator (7) is installed on the wheel hub (6)；Described
Hawser (4) sequentially passes through institute's hole (3), and on the blade tip inner wall one end of which is fixed on fan blade (1), the other end is fixed on wheel
On hub end fixator (7)；Fixator (5) is installed on the hawser (4) between every group of hole (3) between the shear web, is resisted
The size of fixator (5) is more than the diameter of hole (3) between shear web；
The throwing flies to judge prior-warning device, including tension sensor (8), signal detection processing module, judges controller and letter
Number transport module；The tension sensor (8) is installed on the hawser (4) between adjacent holes (3) on same shear web (2)
On；Tension sensor (8), which produces data and is transferred to by signal detection processing module, to be judged in controller, and signal transmission module will
Judge that the warning message that controller is sent is transferred to control centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039598.3A CN107989828B (en) | 2018-01-08 | 2018-01-08 | A kind of safety device winged suitable for the anti-blade throwing of trunnion axis blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039598.3A CN107989828B (en) | 2018-01-08 | 2018-01-08 | A kind of safety device winged suitable for the anti-blade throwing of trunnion axis blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107989828A true CN107989828A (en) | 2018-05-04 |
| CN107989828B CN107989828B (en) | 2019-09-27 |
Family
ID=62041175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810039598.3A Active CN107989828B (en) | 2018-01-08 | 2018-01-08 | A kind of safety device winged suitable for the anti-blade throwing of trunnion axis blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989828B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008267272A (en) * | 2007-04-20 | 2008-11-06 | Matsushita Electric Ind Co Ltd | Wind power generating device |
| US20090246019A1 (en) * | 2007-05-04 | 2009-10-01 | Mark Volanthen | Wind turbine monitoring |
| CN101818724A (en) * | 2010-05-11 | 2010-09-01 | 无锡风电设计研究院有限公司 | Intelligent blade of wind driven generator |
| CN201963495U (en) * | 2011-03-23 | 2011-09-07 | 陈玉田 | Blade of wind driven generator |
| CN203285619U (en) * | 2013-02-05 | 2013-11-13 | 上海理工大学 | Sectional blade and wind power generator |
| CN203925890U (en) * | 2014-07-03 | 2014-11-05 | 龙源（北京）风电工程技术有限公司 | A kind of blade with loop-type ground wire |
| CN207673618U (en) * | 2018-01-08 | 2018-07-31 | 大连理工大学 | A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device |
-
2018
- 2018-01-08 CN CN201810039598.3A patent/CN107989828B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008267272A (en) * | 2007-04-20 | 2008-11-06 | Matsushita Electric Ind Co Ltd | Wind power generating device |
| US20090246019A1 (en) * | 2007-05-04 | 2009-10-01 | Mark Volanthen | Wind turbine monitoring |
| CN101818724A (en) * | 2010-05-11 | 2010-09-01 | 无锡风电设计研究院有限公司 | Intelligent blade of wind driven generator |
| CN201963495U (en) * | 2011-03-23 | 2011-09-07 | 陈玉田 | Blade of wind driven generator |
| CN203285619U (en) * | 2013-02-05 | 2013-11-13 | 上海理工大学 | Sectional blade and wind power generator |
| CN203925890U (en) * | 2014-07-03 | 2014-11-05 | 龙源（北京）风电工程技术有限公司 | A kind of blade with loop-type ground wire |
| CN207673618U (en) * | 2018-01-08 | 2018-07-31 | 大连理工大学 | A kind of anti-blade suitable for trunnion axis wind turbine throws winged safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107989828B (en) | 2019-09-27 |
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