CN110342388A - A kind of method and apparatus adjusting blade of wind-driven generator position of centre of gravity - Google Patents
A kind of method and apparatus adjusting blade of wind-driven generator position of centre of gravity Download PDFInfo
- Publication number
- CN110342388A CN110342388A CN201910667297.XA CN201910667297A CN110342388A CN 110342388 A CN110342388 A CN 110342388A CN 201910667297 A CN201910667297 A CN 201910667297A CN 110342388 A CN110342388 A CN 110342388A
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- Prior art keywords
- blade
- wind
- gravity
- driven generator
- centre
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/108—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for lifting parts of wind turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Wind Motors (AREA)
Abstract
A kind of method and apparatus adjusting blade of wind-driven generator position of centre of gravity, counterweight point is determined on blade of wind-driven generator to be lifted, and liquid ballast device is set on counterweight point, liquid ballast device is the built-in counter weight device being arranged in inside blade of wind-driven generator or the external counter weight device being arranged in outside blade of wind-driven generator, adjusts the position of centre of gravity of blade of wind-driven generator to be lifted to the blade center-of-gravity station of single blade suspender demand by adjusting the quality of the counterweight liquid in liquid ballast device.The present invention substantially increases the versatility of single blade suspender, improves the service efficiency of single blade suspender, accelerates unit development progress, reduces leaf blade hanging amortization cost.
Description
Technical field
The present invention relates to a kind of method and apparatus for adjusting blade of wind-driven generator position of centre of gravity.
Background technique
With the enlargement development of wind power generating set, pneumatic equipment bladess are increasingly longer, and impeller is also increasingly heavier, impeller
Lifting mode is gradually single blade lifting by impeller and blade integral hoisting transition, especially marine large-scale wind electricity unit, Dan Ye
Piece suspender becomes the standard configuration of unit hoisting engineering application substantially.In single blade hoisting process at this stage, the folder of suspender clamping jaw
Hold it is a little most important with the relative position of blade center of gravity point, and the clamping face of clamping jaw need it is profile-followed with the aerodynamic configuration of blade, because
This, the suspender for being directed to the blade of certain a determining aerodynamic configuration and structural focus position and designing may be only available for this leaf
Piece.If keeping blade profile constant, different wind-resources operating conditions are directed to, the internal structure of blade is adjusted, changes blade
Position of centre of gravity, then the suspender will be unsuitable for changing the blade of position of centre of gravity, it is necessary to the matching of suspender clamping jaw and blade into
Row redesigns.And the alternative costs of single blade suspender clamping jaw are up to millions of members, considerably increase unit development cost and
Hoisting cost makes single blade suspender poor universality, reduces the service efficiency of single blade suspender.
Summary of the invention
The present invention provides a kind of method and apparatus for adjusting blade of wind-driven generator position of centre of gravity, substantially increases single blade
The versatility of suspender improves the service efficiency of single blade suspender, accelerates unit development progress, reduces leaf blade hanging amortization
Cost.
In order to achieve the above object, the present invention provides a kind of method for adjusting blade of wind-driven generator position of centre of gravity, includes
Following steps: determining counterweight point on blade of wind-driven generator to be lifted, and liquid ballast device is arranged on counterweight point, leads to
Cross adjustment liquid ballast device in counterweight liquid quality will be to be lifted blade of wind-driven generator position of centre of gravity adjustment
To the blade center-of-gravity station of single blade suspender demand.
The counterweight point includes blade root Weight point and blade tip Weight point, and the blade root Weight point is
Refer to the counterweight point within the scope of from root of blade to the blade center-of-gravity station of single blade suspender demand, the blade tip Weight point
Refer to from the counterweight point within the scope of the blade center-of-gravity station to blade tip of single blade suspender demand.
If the position of centre of gravity of blade of wind-driven generator to be lifted is close compared to the position of centre of gravity of single blade suspender demand
Blade root then sets blade tip Weight point for counterweight point, and liquid ballast device is arranged at blade tip Weight point.
If the position of centre of gravity of blade of wind-driven generator to be lifted is close compared to the position of centre of gravity of single blade suspender demand
Blade tip then sets blade root Weight point for counterweight point, and liquid ballast device is arranged at blade root Weight point.
After the blade of wind-driven generator for adjusting position of centre of gravity is installed on wind power generator impeller, by liquid ballast
Counterweight liquid discharge in device, makes blade of wind-driven generator restore original weight and position of centre of gravity.
The present invention also provides a kind of liquid ballast device, the liquid ballast device is arranged in blade of wind-driven generator
Internal built-in counter weight device or the external counter weight device being arranged in outside blade of wind-driven generator.
The built-in counter weight device includes: the hollow cavity inside wind driven generator blade shell is arranged in, the sky
Chambers of the heart body has aperture, and sealing element is provided in aperture.
The hollow cavity uses glass-reinforced plastic material.
The external counter weight device includes: the elasticity with inner cavity outside wind driven generator blade shell is arranged in
Container, the elastic container have aperture, sealing element are provided in aperture.
The elastic container uses rubber type of material.
The present invention is smaller in the lower situation of engineer application operation difficulty in blade design change, substantially increases single leaf
The versatility of piece suspender, while the convenience of site operation has also been taken into account, for the service efficiency for improving single blade suspender, accelerate machine
Group development progress reduces leaf blade hanging amortization cost and provides the solution of engineer application.
Detailed description of the invention
Fig. 1 is a kind of flow chart of method for adjusting blade of wind-driven generator position of centre of gravity provided by the invention.
Fig. 2 is the structural schematic diagram of liquid ballast device in the first embodiment of the present invention.
Fig. 3 is the partial enlargement diagram in the portion A in Fig. 2.
Fig. 4 is the structural schematic diagram of liquid ballast device in the second embodiment of the present invention.
Fig. 5 is the structural schematic diagram of rubber ring in Fig. 4.
Specific embodiment
Below according to FIG. 1 to FIG. 5, presently preferred embodiments of the present invention is illustrated.
As shown in Figure 1, the present invention provides a kind of method for adjusting blade of wind-driven generator position of centre of gravity, it include following step
Rapid: using the blade center-of-gravity station of existing single blade suspender demand as standard, determination is matched on blade of wind-driven generator to be lifted
Emphasis, and on counterweight point be arranged liquid ballast device, by adjusting the counterweight liquid in liquid ballast device quality by
The position of centre of gravity of blade of wind-driven generator to be lifted is adjusted to the blade center-of-gravity station of single blade suspender demand, then uses Dan Ye
Piece suspender lifts the blade of wind-driven generator to be lifted for adjusting position of centre of gravity, will adjust the wind-driven generator of position of centre of gravity
After blade is installed on wind power generator impeller, the counterweight liquid in liquid ballast device is discharged, wind-driven generator leaf is made
Piece restores original weight and position of centre of gravity.
The counterweight point includes blade root Weight point and blade tip Weight point, and the blade root Weight point is
Refer to the counterweight point within the scope of from root of blade to the blade center-of-gravity station of single blade suspender demand, the blade tip Weight point
Refer to from the counterweight point within the scope of the blade center-of-gravity station to blade tip of single blade suspender demand.
If the position of centre of gravity of blade of wind-driven generator to be lifted is close compared to the position of centre of gravity of single blade suspender demand
Blade root then sets blade tip Weight point for counterweight point, and liquid ballast device is arranged at blade tip Weight point, toward liquid
Increase counterweight liquid in body counter weight device, the position of centre of gravity of blade of wind-driven generator to be lifted, which is adjusted to single blade suspender, to be needed
The blade center-of-gravity station asked.Then the blade of wind-driven generator to be lifted of position of centre of gravity was adjusted with the lifting of single blade suspender,
It, will be in liquid ballast device after the blade of wind-driven generator for adjusting position of centre of gravity is installed on wind power generator impeller
The discharge of counterweight liquid, makes blade of wind-driven generator restore original weight and position of centre of gravity.
If the position of centre of gravity of blade of wind-driven generator to be lifted is close compared to the position of centre of gravity of single blade suspender demand
Blade tip then sets blade root Weight point for counterweight point, and liquid ballast device is arranged at blade root Weight point, toward liquid
Increase counterweight liquid in body counter weight device, the position of centre of gravity of blade of wind-driven generator to be lifted, which is adjusted to single blade suspender, to be needed
The blade center-of-gravity station asked.Then the blade of wind-driven generator to be lifted of position of centre of gravity was adjusted with the lifting of single blade suspender,
It, will be in liquid ballast device after the blade of wind-driven generator for adjusting position of centre of gravity is installed on wind power generator impeller
The discharge of counterweight liquid, makes blade of wind-driven generator restore original weight and position of centre of gravity.
The liquid ballast device can use built-in counter weight device, which includes: setting exists
Hollow cavity inside wind driven generator blade shell, the hollow cavity have aperture, the aperture as water injection hole and drainage hole,
It is provided with sealing element in aperture, is used for seal and opening, hollow aperture is made to become a complete seal.The hollow cavity
Body can choose glass-reinforced plastic material.
The liquid ballast device can also use external counter weight device, which includes: setting
The elastic container with inner cavity outside wind driven generator blade shell, the elastic container have aperture, and the aperture is as note
Water injecting hole and drainage stomata, are provided with sealing element in aperture, are used for seal and opening, and elastic container is made to become one completely
Seal.The elastic container can choose rubber type of material.
First embodiment
Position of centre of gravity with the position of centre of gravity of blade of wind-driven generator to be lifted compared to single blade suspender demand is close to leaf
For root, the position of centre of gravity of blade of wind-driven generator to be lifted is adjusted, as shown in Figures 2 and 3, method of adjustment includes following step
It is rapid:
Step 1, the blade tip Weight point for designing and selecting blade 101；
Step 2, blade 101 shell solidification before, the prefabricated drainage hole 106 on blade shell；
Step 3, preparation and the profile-followed hollow cavity 102 of blade shell inner surface, before vane mold matching, by hollow cavity
102 are fixed on 101 shell inner surface of blade, and hollow cavity 102 and junction are sealed；
Step 4, by hollow cavity 102 and 103 connection of pipeline, pipeline 103 is fixed on 101 shell of blade by connection position sealing
Internal portion, and pipeline 103 is connect with drainage hole 106；
It after step 5, blade 101 complete, weighs to blade 101, calculates the weight for reaching single blade suspender demand
Blade tip balance weight needed for heart position；
Step 6, injected by pipeline 106 to hollow cavity 102 required counterweight water weight；
Step 7 stoppers the pipeline opening at drainage hole 106 using plug 105, prevents water from flowing out, 105 tail end of plug installation one
The longer rope 104 of root；
Blade 101 is lifted into unit impeller using single blade suspender, and installed according to installation specifications by step 8；
After step 9, blade 101 are installed, rotary blade to 101 blade tip down position of blade is drawn using rope 104 and is filled in
Son 105, plug 105 falls off, and hollow cavity 102 is discharged from drainage hole in water, is restored to 101 weight of blade and position of centre of gravity originally
Design point.
Second embodiment
Position of centre of gravity with the position of centre of gravity of blade of wind-driven generator to be lifted compared to single blade suspender demand is close to leaf
For root, the position of centre of gravity of blade of wind-driven generator to be lifted is adjusted, as shown in Figure 4 and Figure 5, method of adjustment includes following step
It is rapid:
Step 1, the blade tip Weight point for designing and selecting blade 201, weigh to blade 201, and calculate and need counterweight
Weight；
Step 2, preparation one match the similar rubber turn 202 with inner cavity of position emphasis shape with blade tip；
Step 3, by 202 sets of rubber ring at blade tip Weight point, by the aperture on rubber ring 202 to rubber ring
Water is injected in 202 inner cavity, and the weight of the weight and rubber ring that make water reaches required balance weight, to inflating in rubber ring 202, makes
Rubber ring 202 expands and squeezes 201 surface of blade, and frictional force is enable to support the discord blade 201 of rubber ring 202 that opposite position occurs
It moves, is provided with plug 203 in the aperture of rubber ring 202, a longer and solid rope 204 is fixed in 203 tail portion of plug, plug
Sub 203 pairs of rubber rings 202 are sealed, and bolt has a very long rope 205 on rubber ring 202；
Blade 201 is lifted into unit impeller using single blade suspender, and installed according to installation specifications by step 4；
Rope 204 in step 5, pulling plug 203, releases sealing of the plug 203 to rubber ring 202, and plug 203 is de-
It falls, the gas and liquid in rubber ring 202 are discharged, and rubber ring 202 is in relaxed state, recycle rubber ring using rope 205
202, so that 201 weight of blade and position of centre of gravity is restored to the design point of script.
3rd embodiment
Position of centre of gravity with the position of centre of gravity of blade of wind-driven generator to be lifted compared to single blade suspender demand is close to leaf
For point, the position of centre of gravity of blade of wind-driven generator to be lifted is adjusted, method of adjustment comprises the steps of:
Step 1, blade root Weight point are selected at blade root baffle, blade of weighing, and calculate the weight for needing counterweight
Amount；
Step 2 leans on leaf root side in blade root baffle in conjunction with blade shell, arranges a buckle or fixed point.
Rubber flexible container is fixed on buckle or fixed point by step 3, is injected water to rubber container inner cavity, is made water
Weight and the weight of rubber container reach required balance weight,
Leaf blade hanging is entered unit impeller using single blade suspender, and installed according to installation specifications by step 4
Rubber ring neutralising fluid is discharged step 5, recycles rubber ring, makes leaf weight and position of centre of gravity restoration designing shape
State.
The present invention is smaller in the lower situation of engineer application operation difficulty in blade design change, substantially increases single leaf
The versatility of piece suspender, while the convenience of site operation has also been taken into account, for the service efficiency for improving single blade suspender, accelerate machine
Group development progress reduces leaf blade hanging amortization cost and provides the solution of engineer application.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of method for adjusting blade of wind-driven generator position of centre of gravity, which is characterized in that comprise the steps of: to be lifted
Counterweight point is determined on blade of wind-driven generator, and liquid ballast device is set on counterweight point, by adjusting liquid ballast device
In the quality of counterweight liquid the position of centre of gravity of blade of wind-driven generator to be lifted is adjusted to single blade suspender demand
Blade center-of-gravity station.
2. the method for adjustment blade of wind-driven generator position of centre of gravity as described in claim 1, which is characterized in that the counterweight
Point includes blade root Weight point and blade tip Weight point, and the blade root Weight point refers to from root of blade to single leaf
Counterweight point within the scope of the blade center-of-gravity station of piece suspender demand, the blade tip Weight point refers to be needed from single blade suspender
The counterweight point within the scope of blade center-of-gravity station to blade tip asked.
3. the method for adjustment blade of wind-driven generator position of centre of gravity as claimed in claim 2, which is characterized in that if wait lift
Blade of wind-driven generator position of centre of gravity compared to single blade suspender demand position of centre of gravity close to blade root, then counterweight point is arranged
For blade tip Weight point, liquid ballast device is arranged at blade tip Weight point.
4. the method for adjustment blade of wind-driven generator position of centre of gravity as claimed in claim 2, which is characterized in that if wait lift
Blade of wind-driven generator position of centre of gravity compared to single blade suspender demand position of centre of gravity close to blade tip, then counterweight point is arranged
For blade root Weight point, liquid ballast device is arranged at blade root Weight point.
5. the method for adjustment blade of wind-driven generator position of centre of gravity as described in claim 1, which is characterized in that will adjust overweight
After the blade of wind-driven generator of heart position is installed on wind power generator impeller, the counterweight liquid in liquid ballast device is arranged
Out, blade of wind-driven generator is made to restore original weight and position of centre of gravity.
6. a kind of liquid ballast device is used to adjust the side of blade of wind-driven generator position of centre of gravity as claimed in claim 5
Method, which is characterized in that the liquid ballast device be arranged in built-in counter weight device inside blade of wind-driven generator or
It is the external counter weight device being arranged in outside blade of wind-driven generator.
7. liquid ballast device as claimed in claim 6, which is characterized in that the built-in counter weight device includes: setting
Hollow cavity inside wind driven generator blade shell, the hollow cavity have aperture, sealing element are provided in aperture.
8. liquid ballast device as claimed in claim 7, which is characterized in that the hollow cavity uses glass-reinforced plastic material.
9. liquid ballast device as claimed in claim 6, which is characterized in that the external counter weight device includes: setting
The elastic container with inner cavity outside wind driven generator blade shell, the elastic container have aperture, are arranged in aperture
There is sealing element.
10. liquid ballast device as claimed in claim 9, which is characterized in that the elastic container uses rubber type of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667297.XA CN110342388B (en) | 2019-07-23 | 2019-07-23 | Method and device for adjusting gravity center position of wind driven generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667297.XA CN110342388B (en) | 2019-07-23 | 2019-07-23 | Method and device for adjusting gravity center position of wind driven generator blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110342388A true CN110342388A (en) | 2019-10-18 |
| CN110342388B CN110342388B (en) | 2020-11-10 |
Family
ID=68179933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910667297.XA Active CN110342388B (en) | 2019-07-23 | 2019-07-23 | Method and device for adjusting gravity center position of wind driven generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110342388B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404024U (en) * | 2013-07-19 | 2014-01-22 | 上海艾郎风电科技发展有限公司 | Wind turbine blade |
| CN204402770U (en) * | 2015-01-21 | 2015-06-17 | 北京金风科创风电设备有限公司 | The airfoil fan of wind-driven generator |
| CN106121907A (en) * | 2016-06-28 | 2016-11-16 | 三重型能源装备有限公司 | Blade balancing method, blade and wind-driven generator |
| CN209067410U (en) * | 2018-08-16 | 2019-07-05 | 山东华业电气有限公司 | Fan blade liquid counterweight |
-
2019
- 2019-07-23 CN CN201910667297.XA patent/CN110342388B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404024U (en) * | 2013-07-19 | 2014-01-22 | 上海艾郎风电科技发展有限公司 | Wind turbine blade |
| CN204402770U (en) * | 2015-01-21 | 2015-06-17 | 北京金风科创风电设备有限公司 | The airfoil fan of wind-driven generator |
| CN106121907A (en) * | 2016-06-28 | 2016-11-16 | 三重型能源装备有限公司 | Blade balancing method, blade and wind-driven generator |
| CN209067410U (en) * | 2018-08-16 | 2019-07-05 | 山东华业电气有限公司 | Fan blade liquid counterweight |
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| Publication number | Publication date |
|---|---|
| CN110342388B (en) | 2020-11-10 |
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Address after: 200241 Dongchuan Road, Shanghai, No. 555, building No. 8, floor, floor, No. Applicant after: Shanghai Electric Wind Power Group Co.,Ltd. Address before: 200241, 4 floor, building 555, 4 Dongchuan Road, Shanghai, Minhang District Applicant before: SHANGHAI ELECTRIC WIND POWER GROUP Co.,Ltd. |
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