CN102953932B - Wind-power blade component with quality adjusted by liquid and adjusting method thereof - Google Patents

Wind-power blade component with quality adjusted by liquid and adjusting method thereof Download PDF

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Publication number
CN102953932B
CN102953932B CN201210470655.6A CN201210470655A CN102953932B CN 102953932 B CN102953932 B CN 102953932B CN 201210470655 A CN201210470655 A CN 201210470655A CN 102953932 B CN102953932 B CN 102953932B
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CN
China
Prior art keywords
blade
pipeline
wheel hub
afterbody
liquid
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.)
Expired - Fee Related
Application number
CN201210470655.6A
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Chinese (zh)
Other versions
CN102953932A (en
Inventor
吴东垠
蒙佳
赵若焱
邹洋
吴平
王利兵
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Nantong Lubo Automobile Parts Co ltd
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Xian Jiaotong University
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Publication date
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Priority to CN201210470655.6A priority Critical patent/CN102953932B/en
Publication of CN102953932A publication Critical patent/CN102953932A/en
Application granted granted Critical
Publication of CN102953932B publication Critical patent/CN102953932B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention discloses a wind-power blade component with quality adjusted by a liquid and an adjusting method thereof. The wind-power blade component comprises a blade main body, a blade pipeline, a solenoid valve, a wheel hub, a tail pipeline, a tail collection box, a pump, a controller and an anemometer, wherein a set of blade end pipeline is arranged at each back of three blades of a wind driven generator; a space for containing an anti-freezing liquid is formed at the middle of the wheel hub; three outlets respectively and correspondingly connected with the three sets of blade pipelines are formed; the solenoid valve is arranged at the outlets for controlling the opening and the closing of the outlets; another outlet for communicating the tail pipeline and with the tail collection box is formed at the back of the wheel hub, and is connected with the pump; the tail collection box is arranged in a wind driven generator tower, and a certain amount of anti-freezing liquid is contained in the tail collection box; the anemometer measures a real-time wind speed data and transmits the data to the controller; and the controller controls the running of the pump while controlling the opening and the closing of the solenoid valve.

Description

A kind of wind electricity blade assembly by liquid adjusting vane quality and regulating method thereof
[technical field]
The present invention relates to technical field of wind power generating equipment, particularly relate to a kind of wind electricity blade assembly by liquid adjusting vane quality and regulating method thereof.
[background technique]
Along with the requirement of the mankind to ecotope and the needs to the energy, the exploitation of wind energy comes into one's own day by day, and wind-power electricity generation is by one of a kind of renewable and clean energy resource becoming 21 century large-scale development.Wind energy is as the one of renewable energy sources, quite abundant the reserves of China.Along with people are to the continuous maturation of improving constantly of being familiar with of wind-power electricity generation and small-size wind power-generating technology, its application is also more and more extensive.
Wind-driven generator is the electricity generating device utilizing the wind energy of occurring in nature to make it to be converted into electric energy.Wind power generating set is operated in certain wind speed range, in many cases, no matter require how wind energy conversion system ambient wind velocity changes, always rotating speed keeps constant or is no more than a certain limit value.Wind power generating set is after exceeding rated wind speed, due to the restriction of mechanical strength and the physical property such as generator, power electronics capacity, leaf quality can be improved, ensure that rotating speed maintains near rated speed, even if power stage remains near rating value, ensure that wind energy conversion system does not suffer damage.Wind speed is the amount that a randomness is very large, all may change in time with the change in season, even fast changing.From mechanics and kinology knowledge, within the specific limits, pneumatic equipment blades made quality is larger, and under equal wind speed, himself rotating speed is lower.
Current power mode mainly can be divided into stall-adjusted and feather two kinds.Although stall-adjusted structure is simple, easy to maintenance, cabin is heavier, and greatly, basis is large, cost is high for transport and hoisting difficulty; Pitch mechanism is stressed minimum, main frame and pylon lightweight, transport and hoisting difficulty little, but the system architecture of feather is complicated, and rate of fault is slightly high, higher to operation, manager-related factors requirement.
[summary of the invention]
The object of the invention is to overcome above-mentioned prior art not enough, provide a kind of wind electricity blade assembly by liquid adjusting vane quality and regulating method thereof, automatic adjusting vane quality, thus make wheel speed more stable.
For achieving the above object, the invention provides a kind of wind electricity blade assembly by liquid adjusting vane quality, comprise blade, wheel hub, afterbody header, and described in controller, afterbody header is arranged in wind-driven generator tower frame inside, in described afterbody header, has liquid; Described blade is provided with end of blade pipeline, and described wheel hub is provided with inner chamber, and the liquid in described afterbody header communicates with blade pipeline through hub inner lumen.
As the preferred embodiments of the present invention, described end of blade pipeline from root of blade to vane tip be convergent extend;
As the preferred embodiments of the present invention, described end of blade pipeline and wheel hub joint are provided with the first electromagnetic valve end of blade pipeline opening and closing be connected with controller;
As the preferred embodiments of the present invention, described blade assembly includes one further, and fixing not with the wheel hub plate that wheel hub rotates, described wheel hub plate and wheel hub have ring packing structure at jointing, and both interlock connection, and wheel hub is rotatable, and wheel hub plate can not rotate;
As the preferred embodiments of the present invention, described blade assembly comprises afterbody pipeline further, and the liquid in afterbody header enters into the inner chamber of described wheel hub through afterbody pipeline;
As the preferred embodiments of the present invention, described wheel hub plate is provided with an outlet and connects afterbody pipeline towards afterbody header;
As the preferred embodiments of the present invention, described blade assembly includes forward pump and reversing pump further, and this forward pump and reversing pump are connected to the second solenoid valve and the 3rd solenoid valve, controls the flow direction of the liquid in afterbody header;
By a regulating method for liquid adjusting vane quality, described blade is provided with end of blade pipeline, this end of blade install pipeline has outlet, this outlet is connected with afterbody header, described exit position is provided with switch, and this switch is connected with controller, and described afterbody header is built with liquid; When incoming flow wind speed is equal to or greater than rated wind speed, controller control switch is opened, and makes in the Liquid transfer in afterbody header to blade pipeline to increase the quality of blade; Otherwise, control to make the liquid in blade pipeline flow back to afterbody header.
As the preferred embodiments of the present invention, described afterbody header is connected with forward pump and reversing pump, and the flow direction of liquid is controlled by forward pump or reversing pump;
As the preferred embodiments of the present invention, described switch is solenoid valve.
The present invention by adjusting leaf quality to the mode of the freeze proof liquid of blade interior Cemented filling, can make wheel speed remain near rating value and not exceeding the speed limit under the incoming flow wind speed exceeding rated wind speed.The layout of end of blade pipeline can play to blade the effect strengthening rigidity simultaneously, makes wind energy conversion system can bear more large impact.
[accompanying drawing explanation]
Fig. 1 is vacuum side of blade structural representation of the present invention;
Fig. 2 is the linkage structure schematic diagram of root of blade and wheel hub;
Fig. 3 is root of blade, tip schematic cross-section, and wherein, Fig. 3-1 is the schematic cross-section of root of blade, and Fig. 3-2 is blade tip schematic cross-sections;
Fig. 4 is the connection diagram of afterbody pipeline, header, pumping system;
Label in figure represents respectively: 1, blade body; 2, end of blade pipeline; 3, the first solenoid valve; 4, wheel hub; 5, wheel hub plate; 6, afterbody pipeline; 7, afterbody header; 8, second, third solenoid valve; 9, forward pump and reversing pump; 10, controller; 11, anemoscope; 12, blower fan main shaft.
Embodiment
Below in conjunction with accompanying drawing, content of the present invention is described in further detail.
Blade transfusion system of the present invention comprises blade body 1, end of blade pipeline 2(reducing pipe), the first solenoid valve 3, wheel hub 4, wheel hub plate 5, afterbody pipeline 6, afterbody header 7, second, third solenoid valve 8, forward pump and reversing pump 9, controller 10, anemoscope 11, respectively be placed with a set of end of blade pipeline 2 being arranged in blade body cavity inside at wind-driven generator three vacuum side of blades, end of blade pipeline 2 is reduced to tip diameter gradually by root; The cavity of the freeze proof fluid of one deck space is had in the middle of wheel hub 4, the wheel hub back side is provided with one and fixes not with the wheel hub plate that wheel hub rotates, wheel hub plate and wheel hub have ring packing structure at jointing, and rotate to interlock with wheel hub plate 5 and be connected, wheel hub 4 is provided with three outlets and is connected respectively three cover blade pipelines, outlet port arranges end of blade solenoid valve 3, controls opening and closing by controller; Wheel hub plate 5 establishes an outlet to connect afterbody pipeline 6 towards afterbody header 7, and is connected with pump; Afterbody header is arranged in wind-driven generator tower frame inside; Anemoscope 11 records real-time air speed data, is transferred to controller 10, and controller, by logical operation, controls the opening and closing of end of blade solenoid valve, the running of another side control pump.
In an initial condition, afterbody header deposits a certain amount of freeze proof fluid, when anemoscope record incoming flow wind speed exceed rated wind speed time, by signal transmission to controller, controller Controlling solenoid valve is opened, and the forward pump P1 simultaneously controlling end drives freeze proof fluid to flow through afterbody pipeline and hub inner lumen enters end of blade pipeline.
The amount being delivered to the freeze proof liquid of end of blade pipeline by afterbody header is controlled to solenoid valve and pump by controller, when the wind speed that anemoscope records exceedes rated wind speed certain value, controller Controlling solenoid valve is opened, forward pump P1 running simultaneously drives freeze proof fluid to enter end of blade header from afterbody header, and when making wind speed too high by the quality increasing blade, fan blade maintains stabilized (steady-state) speed.When wheel hub wind speed is lower than rated wind speed, controller Controlling solenoid valve is opened, and reversing pump P2 drives freeze proof fluid to return afterbody header from end of blade header, makes blade keep original weight, ensures that blower fan runs near rated speed.Carry complete, solenoid valve closes immediately, prevents freeze proof liquid backflow.
Below, be described with reference to the accompanying drawings:
A kind of blade of wind-driven generator transfusion system of the present invention is made up of three parts shown in Fig. 1,2,3, is end of blade part, hub portion and afterbody header part respectively.
Refer to shown in Fig. 1, the end of blade pipeline 2 in the present invention is arranged on blade body cavity inside, reduces along root of blade to vane tip direction pipe diameter.
Refer to shown in Fig. 2, the end of blade pipeline 3 in the present invention is provided with end of blade solenoid valve 3 to control pipeline opening and closing in the joint near wheel hub 4.Wheel hub 4 hollow in the present invention, can pass through freeze proof fluid, and the wheel hub back side is provided with outlet and connects afterbody pipeline 6 towards afterbody header 7.
Refer to shown in Fig. 3, the end of blade pipeline in the present invention to tip diameter convergent by root, can be made blade of wind-driven generator quality more intensive in root distribution, effectively ensure the safe operation of wind energy conversion system.
Refer to shown in Fig. 4, the unlatching of the controller 10 control pump end solenoid valve () 8 in the present invention and two pumps (forward pump P1 and reversing pump P2) 9, the effect of forward pump P1 is that freeze proof fluid is squeezed into end of blade pipeline 2 by afterbody header 7, and the effect of reversing pump P2 is that freeze proof fluid is drawn back afterbody header 7 by end of blade pipeline 2.Anemoscope 11 records wind velocity signal and passes to controller 10, the sequential operation of controller by setting, when wind speed is elevated near cut-out wind speed by low value, Controlling solenoid valve 5 is opened, and control pump 9 and pump end solenoid valve 8 are opened to drive freeze proof fluid to flow into end of blade header 2, add the quality of impeller, effectively can slow down wheel speed, ensure that wind energy conversion system safe handling does not exceed the speed limit; Wind speed by high level be reduced to cut-out wind speed and continue decline time, controller 10 Controlling solenoid valve 5 is opened again, and control reversing pump drive freeze proof fluid is drawn back afterbody header 7, make blade keep original weight, ensure that wind energy conversion system is got back near rated speed to run, ensure that Economy is not suffered a loss simultaneously.

Claims (7)

1., by a wind electricity blade assembly for liquid adjusting vane quality, it is characterized in that: comprise blade, wheel hub, afterbody header, and controller, described afterbody header is arranged in wind-driven generator tower frame inside, has liquid in described afterbody header; Described blade is provided with end of blade pipeline (2), and described wheel hub is provided with inner chamber, and the liquid in described afterbody header communicates with blade pipeline (2) through hub inner lumen; Described end of blade pipeline (2) from root of blade to vane tip be convergent extend; Described blade assembly includes one further and fixes not with the wheel hub plate (5) that wheel hub (4) rotates, and described wheel hub plate (5) and wheel hub (4) have ring packing structure at jointing; Described blade assembly comprises afterbody pipeline (6) further, and the liquid in afterbody header enters into the inner chamber of described wheel hub through afterbody pipeline.
2. wind electricity blade assembly as claimed in claim 1, is characterized in that: described end of blade pipeline (2) and wheel hub (4) joint are provided with the first solenoid valve (3) be connected with controller and control the opening and closing of end of blade pipeline.
3. wind electricity blade assembly as claimed in claim 1, is characterized in that: described wheel hub plate (5) is provided with an outlet and connects afterbody pipeline (6) towards afterbody header (7).
4. wind electricity blade assembly as claimed in claim 1, it is characterized in that: described blade assembly includes forward pump and reversing pump further, this forward pump and reversing pump are connected to the second solenoid valve and the 3rd solenoid valve, control the flow direction of the liquid in afterbody header.
5. the regulating method by liquid adjusting vane quality, it is characterized in that: blade is provided with end of blade pipeline (2), this end of blade pipeline (2) is provided with outlet, this outlet is connected with afterbody header (7), described exit position is provided with switch, this switch is connected with controller, and described afterbody header (7) is built with liquid; When incoming flow wind speed is equal to or greater than rated wind speed, controller control switch is opened, and makes in the Liquid transfer in afterbody header to blade pipeline to increase the quality of blade; Otherwise, control to make the liquid in blade pipeline flow back to afterbody header.
6. a kind of regulating method as claimed in claim 5, described afterbody header is connected with forward pump and reversing pump, and the flow direction of liquid is controlled by forward pump or reversing pump.
7. a kind of regulating method as claimed in claim 5, described switch is solenoid valve.
CN201210470655.6A 2012-11-19 2012-11-19 Wind-power blade component with quality adjusted by liquid and adjusting method thereof Expired - Fee Related CN102953932B (en)

Priority Applications (1)

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CN102953932B true CN102953932B (en) 2015-04-29

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110486222A (en) * 2019-09-05 2019-11-22 国电联合动力技术有限公司 A kind of anti-icing wind electricity blade and wind electricity blade prevent the method to freeze

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006030167A1 (en) * 2006-06-30 2008-01-03 Robert Bosch Gmbh Rotor blade for wind-power plant, comprises mass body which is enclosed from rotor blade, and position of mass body within rotor blade is locally changeable along longitudinal axis
CN201187411Y (en) * 2008-04-29 2009-01-28 唐德尧 Apparatus for actively controlling wind power generator paddle dynamic balance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006030167A1 (en) * 2006-06-30 2008-01-03 Robert Bosch Gmbh Rotor blade for wind-power plant, comprises mass body which is enclosed from rotor blade, and position of mass body within rotor blade is locally changeable along longitudinal axis
CN201187411Y (en) * 2008-04-29 2009-01-28 唐德尧 Apparatus for actively controlling wind power generator paddle dynamic balance

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Effective date of registration: 20210429

Address after: 226600 No.2, Anhai East Road, Dagong Town, Haian City, Nantong City, Jiangsu Province

Patentee after: Nantong Lubo Automobile Parts Co.,Ltd.

Address before: 710049 Xianning West Road, Shaanxi, China, No. 28, No.

Patentee before: XI'AN JIAOTONG University

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150429

Termination date: 20211119

CF01 Termination of patent right due to non-payment of annual fee