CN117755950A - Super-long fan blade hoisting method - Google Patents
Super-long fan blade hoisting method Download PDFInfo
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- CN117755950A CN117755950A CN202311166237.2A CN202311166237A CN117755950A CN 117755950 A CN117755950 A CN 117755950A CN 202311166237 A CN202311166237 A CN 202311166237A CN 117755950 A CN117755950 A CN 117755950A
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- single blade
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 239000004677 Nylon Substances 0.000 claims abstract description 34
- 229920001778 nylon Polymers 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
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- Wind Motors (AREA)
Abstract
The invention provides a hoisting method of a blade of an ultra-long fan, which comprises the following steps: mounting a blade clamp special for an ultra-long single blade on a secondary hook of a main crane; the special wind-collecting nylon ropes are respectively wound on the bolts at the root parts of the ultra-long single blades and the appointed positions close to the blade tip side; the steel wire ropes wound in the electric traction winch are respectively connected with two special wind-collecting nylon ropes on the ultra-long single blade; starting a main crane to lift the ultra-long single blade, controlling the main crane to rotate, and controlling a lifting hook of the main crane to enable the ultra-long single blade to move to the same horizontal height as the hub; and controlling two steel wire ropes on the electric traction winch to finely adjust the front-back left-right offset angle of the ultra-long single blade until all bolts are inserted into holes corresponding to the hubs, and completing the installation of the ultra-long single blade. The invention has the advantages of improving the safety and the installation efficiency of the high-altitude installation operation of the offshore wind turbine, and reducing the cost of offshore wind power construction.
Description
Technical Field
The invention relates to the technical field of fan blade hoisting, in particular to a method for hoisting an ultra-long fan blade.
Background
At present, offshore wind power development gradually expands from an offshore shallow water area to deep open sea, and simultaneously, in order to reduce the offshore wind power development cost and improve the power generation efficiency, the single-machine capacity of an offshore wind power generator set is larger and larger, and the global first 16MW ultra-large-capacity offshore wind power generator set is successfully connected to the grid in China for power generation.
The marine meteorological instantaneous change, the installation of super capacity fan part is easily influenced by sea condition factors such as wind, unrestrained, gushing at sea, and the hoist and mount construction degree of difficulty is big, and especially 123 meters and above overlength blade hoist and mount degree of difficulty is the biggest, on the one hand, blade length exceeds 120 meters, but light in weight, hoist and mount and follow wind swing when being above 150 meters high altitude, bump crane boom frame easily, very easily cause the incident such as jack-up striking. On the other hand, the blade and wheel hub butt joint process precision requirement is high, need with 100 more bolts neatly insert corresponding bolt holes in, and current blade hoist and mount scheme hardly adjusts blade butt joint angle, and blade anchor clamps equipment has fine setting function, but the pulling force is limited, and rotatory angle adjustment range is too little, and the high altitude of blade shakes and also influences butt joint efficiency, leads to the butt joint time too long, influences the installation effectiveness of construction window period.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a hoisting method for the blade of an ultra-long fan, which solves the problems that the high-altitude swing of the blade and the high-altitude shake of the blade influence the installation efficiency caused by the excessive instantaneous wind power in the prior art.
According to the embodiment of the invention, the hoisting method of the ultra-long fan blade comprises the following steps:
s1, hoisting an ultra-long single blade to a main deck by using a main crane and an auxiliary crane double-crane hoisting crane, installing and checking an ultra-long single blade root connecting bolt, installing an ultra-long single blade special blade clamp on a main crane auxiliary hook, and installing the blade clamp at a designated position of the ultra-long single blade;
s2, winding special wind-drawing nylon ropes on bolts at the root of the ultra-long single blade and designated positions close to the blade tip side respectively;
s3, installing an electric traction winch at a main hook of the main crane, respectively connecting two special wind-drawing nylon ropes on the ultra-long single blade by using a steel wire rope wound in the electric traction winch, and connecting the connecting parts by using a special shackle group;
s4, starting the main crane to lift the super-long single blade, starting the electric traction winch to wind the steel wire rope when the super-long single blade is lifted to a specified height, adjusting the azimuth of the super-long single blade, and tensioning the steel wire rope;
s5, controlling the main crane to slowly rotate, stopping rotating when the blade root of the super-long single blade rotates to a position 2-3m away from the fan hub, observing the high-altitude deflection condition of the super-long single blade, adjusting the tightness of the traction steel wire rope when the instantaneous wind power is excessive, and restarting the main crane to rotate;
s6, controlling a main crane lifting hook according to the relative height of the ultra-long single blade and the hub to enable the ultra-long single blade to move to the same horizontal height as the hub, and continuing to rotate to be in position;
and S7, when the bolt at the root of the ultra-long single blade is 0.5m away from the bolt hole, hole alignment observation is carried out, and two steel wire ropes on the electric traction winch are respectively controlled to carry out fine adjustment on the front-back left-right offset angle of the ultra-long single blade, and the holes are slowly aligned until all bolts are inserted into the holes corresponding to the hubs, so that the installation of the ultra-long single blade is completed.
Preferably, the electric traction winch is wound with a first traction steel wire rope and a second traction steel wire rope, the first traction steel wire rope and the second traction steel wire rope are respectively wound on two winding shafts of the electric traction winch, the wind-collecting nylon rope arranged at the root of the super-long single blade is a wind-collecting nylon rope arranged at the root of the blade, the wind-collecting nylon rope arranged near the tip side of the super-long single blade is a wind-collecting nylon rope arranged at the blade side, the first traction steel wire rope is connected with the wind-collecting nylon rope at the blade side, and the second traction steel wire rope is connected with the wind-collecting nylon rope at the root of the blade.
Preferably, the boom guide pulley is rotatably installed in the middle of the boom of the main crane, the triangular bracket is vertically installed at the top of the main crane, the middle of the triangular bracket is connected to the boom, the apex angle guide pulleys are rotatably installed at two ends of the triangular bracket, and the first traction steel wire rope and the second traction steel wire rope are guided by the boom guide pulley and are guided by the two apex angle guide pulleys at two ends of the triangular bracket respectively.
Preferably, the method for fine tuning the ultra-long single blade in step S7 includes:
s701, pulling two ends of the ultra-long single blade to move towards the main crane simultaneously by simultaneously winding the first traction steel wire rope and the second traction steel wire rope, so as to realize unidirectional translation adjustment;
s702, pulling the blade root of the super-long single blade to move away from the main crane by winding the first traction steel wire rope and unwinding the second traction steel wire rope, and adjusting the angle of the blade root of the super-long single blade in the moving process;
s703, pulling the blade root of the super-long single blade to move close to the main crane by unreeling the first traction steel wire rope and reeling the second traction steel wire rope, and adjusting the angle of the blade root of the super-long single blade in the moving process.
Compared with the prior art, the invention has the following beneficial effects:
1. by arranging the mechanical traction wind-drawing nylon rope group to replace the traditional manual wind-drawing method on the deck surface and only relying on blade clamp clamping, the industrial problem that the high-altitude ultra-long single-blade butt joint is unsafe is effectively solved, the safe and reliable offshore construction operation of the ultra-long blades is ensured, compared with the traditional ultra-long single-blade butt joint scheme, the high-altitude butt joint time can be greatly shortened, and the offshore ultra-large capacity fan blade installation efficiency is improved.
2. The ultra-long single blade is connected through the traction cable nylon rope, and can be tensioned by matching with the auxiliary hook of the main crane in the installation process, so that the ultra-long single blade is prevented from shaking in the high air.
3. Wind nylon ropes at two ends of the ultra-long single blade are connected through two traction steel wire ropes, and through winding and unwinding adjustment of the two traction steel wire ropes, rotation adjustment of the end part of the ultra-long single blade is carried out, the butt joint efficiency of the root bolt of the ultra-long single blade and the through hole of the fan hub is improved, and further the installation efficiency of the ultra-long single blade is improved.
4. On one hand, the vertical amplitude of the blade is regulated by virtue of a fine adjustment control system of the blade clamp device, on the other hand, the high-capacity of large-span angle and large traction is utilized to ensure the overhead rest of the blade or realize the angle adjustment of four directions, namely front, back, left and right, through a left traction winch system and a right traction winch system, so that the aim of rapid alignment is realized.
Drawings
FIG. 1 is a diagram of an embodiment of the invention for hoisting an ultra-long single blade.
FIG. 2 is a top view of an ultra-long single blade lift in an embodiment of the invention.
In the above figures: 1. ultra-long single blades; 2. a blade clamp; 3. wind nylon ropes are attached to the blade sides; 4. wind nylon ropes are attached to the root parts of the leaves; 5. a first traction wire rope; 6. a second traction wire rope; 7. a top angle guide pulley; 8. arm support guide pulleys; 9. an electric traction winch; 10. a hub; 11. a-frame.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2. The invention provides a hoisting method of a blade of an ultra-long fan, which comprises the following steps:
s1, hoisting an ultra-long single blade 1 to a main deck by using a main crane and an auxiliary crane double-crane hoisting crane, installing and checking a root connecting bolt of the ultra-long single blade 1, installing a special blade clamp 2 of the ultra-long single blade 1 on a main crane auxiliary hook, and installing the blade clamp 2 at a designated position of the ultra-long single blade 1;
s2, winding special wind-drawing nylon ropes on bolts at the root of the ultra-long single blade 1 and designated positions close to the blade tip side respectively;
s3, installing an electric traction winch 9 at a main hook of a main crane, respectively connecting two special wind-drawing nylon ropes on the ultra-long single blade 1 by using steel wire ropes wound in the electric traction winch 9, and connecting the connecting parts by using a special shackle group;
s4, starting a main crane to start to lift the ultra-long single blade 1, starting an electric traction winch 9 to wind up the steel wire rope when the ultra-long single blade 1 is vertically lifted to a specified height, adjusting the azimuth of the ultra-long single blade 1, and tensioning the steel wire rope;
s5, controlling the main crane to slowly rotate, stopping rotating when the blade root of the ultra-long single blade 1 rotates to a position which is 102-3m away from the fan hub, observing the high-altitude deflection condition of the ultra-long single blade 1, adjusting the tightness of the traction steel wire rope when the instantaneous wind power is overlarge, and restarting the main crane to rotate;
s6, controlling a main crane lifting hook according to the relative height of the ultra-long single blade 1 and the hub 10 so that the ultra-long single blade 1 moves to the same horizontal height as the hub 10, and continuously rotating to be in place;
and S7, when the root bolts of the ultra-long single blade 1 are 0.5m away from the bolt holes, hole alignment observation is carried out, and two steel wire ropes on the electric traction winch 9 are respectively controlled to finely adjust the front, back, left and right offset angles of the ultra-long single blade 1, and the holes are slowly aligned until all the bolts are inserted into the holes corresponding to the hubs 10, so that the ultra-long single blade 1 is installed.
A triangular bracket 11 is arranged on a main crane arm frame of an offshore wind turbine installation platform, the triangular bracket 11 is of an isosceles triangle structure, the middle part of the triangular bracket 11 is fixed on an arm frame, two vertexes on the outer side of the triangular bracket 11 are respectively provided with a vertex angle guide pulley 7, the proper position of the middle lower part of the arm frame is correspondingly provided with a guide pulley, two groups of 20-ton winches, namely electric traction winches 9, are arranged on a main crane rotary chassis, two groups of steel wire ropes are wound on the two groups of winches, namely a first traction steel wire rope 5 and a second traction steel wire rope 6 are respectively connected with an ultra-long single blade 1 near the blade tip side wind-collecting nylon rope and the blade root.
The root of the blade is connected with the blade tip side wind rope through the two groups of traction steel wire ropes, the ultra-long single blade 1 is fixed by being matched with the auxiliary hook of the main crane, and the ultra-long blade staying at the high altitude can still keep relatively static even under the working condition that the instantaneous wind speed is more than 10 m/s.
As shown in fig. 1 and 2. The wind nylon rope is characterized in that a first traction steel wire rope 5 and a second traction steel wire rope 6 are wound on the electric traction winch 9, the first traction steel wire rope 5 and the second traction steel wire rope 6 are respectively wound on two winding shafts of the electric traction winch 9, the wind nylon rope arranged at the root of the overlength single blade 1 is a wind nylon rope 4 at the root of the blade, the wind nylon rope arranged at the blade tip side of the overlength single blade 1 is a wind nylon rope 3 at the blade side, the first traction steel wire rope 5 is connected with the wind nylon rope 3 at the blade side, and the second traction steel wire rope 6 is connected with the wind nylon rope 4 at the root of the blade.
As shown in fig. 2. The cantilever crane guiding pulley 8 is rotatably arranged in the middle of the cantilever crane of the main crane, the triangular bracket 11 is vertically arranged at the top of the main crane, the middle of the triangular bracket 11 is connected to the cantilever crane, the apex angle guiding pulleys 7 are rotatably arranged at two ends of the triangular bracket 11, and the first traction steel wire rope 5 and the second traction steel wire rope 6 are guided by the cantilever crane guiding pulley 8 and are guided by the two apex angle guiding pulleys 7 at two ends of the triangular bracket 11 respectively.
As shown in fig. 1 and 2. The front-back left-right fine adjustment method of the ultra-long single blade 1 in the step S7 includes:
s701, pulling the two ends of the overlength single blade 1 to move towards the main crane simultaneously by simultaneously winding the first traction steel wire rope 5 and the second traction steel wire rope 6, so as to realize unidirectional translation adjustment;
s702, pulling the blade root of the ultra-long single blade 1 to move away from the main crane by winding the first traction steel wire rope 5 and unwinding the second traction steel wire rope 6, and adjusting the angle of the blade root of the ultra-long single blade 1 in the moving process;
s703, by unreeling the first traction steel wire rope 5 and reeling the second traction steel wire rope 6, pulling the blade root of the ultra-long single blade 1 to move close to the main crane, and adjusting the angle of the blade root of the ultra-long single blade 1 in the moving process.
Claims (4)
1. The method for hoisting the super-long fan blade is characterized by comprising the following steps of:
s1, hoisting an ultra-long single blade (1) to a main deck by using a main crane and an auxiliary crane double-crane lifting crane, installing and checking an ultra-long single blade root connecting bolt, installing a special blade clamp (2) for the ultra-long single blade (1) on a main crane auxiliary hook, and installing the blade clamp (2) at a designated position of the ultra-long single blade (1);
s2, winding special wind-drawing nylon ropes on bolts at the root of the ultra-long single blade (1) and designated positions close to the blade tip side respectively;
s3, installing an electric traction winch (9) at a main hook of the main crane, respectively connecting two special wind-collecting nylon ropes on the ultra-long single blade (1) by using a steel wire rope wound in the electric traction winch (9), and connecting the connecting parts by using a special shackle group;
s4, starting a main crane to start to lift the ultra-long single blade (1), and starting an electric traction winch (9) to wind up the steel wire rope when the ultra-long single blade (1) is vertically lifted to a specified height, adjusting the azimuth of the ultra-long single blade (1), and tensioning the steel wire rope;
s5, controlling the main crane to slowly rotate, stopping rotating when the blade root of the ultra-long single blade (1) rotates to a position 2-3m away from the fan hub (10), observing the high-altitude deflection condition of the ultra-long single blade (1), adjusting the tightness of the traction steel wire rope when the instantaneous wind power is overlarge, and starting the main crane to rotate again;
s6, controlling a main crane lifting hook according to the relative height of the ultra-long single blade (1) and the hub (10) so that the ultra-long single blade (1) moves to the same horizontal height as the hub (10), and continuously rotating to be in place;
s7, when the bolt at the root of the ultra-long single blade (1) is 0.5m away from the bolt hole, hole alignment observation is carried out, and two steel wire ropes on the electric traction winch (9) are respectively controlled to finely adjust the front-back left-right offset angle of the ultra-long single blade (1), and the holes are slowly aligned until all bolts are inserted into the holes corresponding to the hubs (10), so that the ultra-long single blade (1) is installed.
2. The method for hoisting the ultra-long fan blade according to claim 1, wherein the method comprises the following steps: the wind-collecting nylon rope is characterized in that a first traction steel wire rope (5) and a second traction steel wire rope (6) are wound on the electric traction winch (9), the first traction steel wire rope (5) and the second traction steel wire rope (6) are respectively wound on two winding shafts of the electric traction winch (9), wind-collecting nylon ropes arranged at the root parts of the overlength single blades (1) are wind-collecting nylon ropes (4) at the root parts, wind-collecting nylon ropes arranged at the tip sides of the overlength single blades (1) are wind-collecting nylon ropes (3) at the blade sides, the first traction steel wire rope (5) is connected with the wind-collecting nylon ropes (3) at the blade sides, and the second traction steel wire rope (6) is connected with the wind-collecting nylon ropes (4) at the root parts of the blades.
3. The method for hoisting the ultra-long fan blade according to claim 2, wherein the method comprises the following steps: the cantilever crane guiding pulley (8) is rotationally arranged in the middle of the cantilever crane of the main crane, the triangular bracket (11) is vertically arranged at the top of the main crane, the middle of the triangular bracket (11) is connected to the cantilever crane, the apex angle guiding pulleys (7) are rotationally arranged at the two ends of the triangular bracket (11), and the first traction steel wire rope (5) and the second traction steel wire rope (6) are guided by the cantilever crane guiding pulley (8) and guided by the two apex angle guiding pulleys (7) at the two ends of the triangular bracket (11) respectively.
4. A method for lifting a blade of an ultra-long fan as claimed in claim 3, wherein: the front-back left-right fine adjustment method of the ultra-long single blade (1) in the step S7 comprises the following steps:
s701, pulling the two ends of the ultra-long single blade (1) to move towards the main crane simultaneously by simultaneously winding the first traction steel wire rope (5) and the second traction steel wire rope (6), so as to realize unidirectional translation adjustment;
s702, pulling the blade root of the ultra-long single blade (1) to move away from the main crane by winding the first traction steel wire rope (5) and unwinding the second traction steel wire rope (6), and adjusting the angle of the blade root of the ultra-long single blade (1) in the moving process;
s703, by unreeling the first traction steel wire rope (5) and reeling the second traction steel wire rope (6), pulling the blade root of the ultra-long single blade (1) to move close to the main crane, and adjusting the blade root angle of the ultra-long single blade (1) in the moving process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311166237.2A CN117755950A (en) | 2023-09-11 | 2023-09-11 | Super-long fan blade hoisting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311166237.2A CN117755950A (en) | 2023-09-11 | 2023-09-11 | Super-long fan blade hoisting method |
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| Publication Number | Publication Date |
|---|---|
| CN117755950A true CN117755950A (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311166237.2A Pending CN117755950A (en) | 2023-09-11 | 2023-09-11 | Super-long fan blade hoisting method |
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| Country | Link |
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| CN (1) | CN117755950A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230835A (en) * | 2006-11-23 | 2008-07-30 | 西门子公司 | Method and device for mounting of wind turbine blades |
| CN205527372U (en) * | 2016-04-12 | 2016-08-31 | 南通润邦重机有限公司 | Steady goods system of hoist with adjustable angle |
| CN111874798A (en) * | 2020-08-26 | 2020-11-03 | 成都世唯科技有限公司 | Control method and system for blade lifting appliance |
| CN214653097U (en) * | 2021-02-04 | 2021-11-09 | 上海铧景海洋工程有限公司 | Cable wind system for hoisting blades of offshore wind turbine |
| CN216945894U (en) * | 2022-02-23 | 2022-07-12 | 福建海电运维科技有限责任公司 | Crane cable wind cable stabilizing system |
-
2023
- 2023-09-11 CN CN202311166237.2A patent/CN117755950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230835A (en) * | 2006-11-23 | 2008-07-30 | 西门子公司 | Method and device for mounting of wind turbine blades |
| CN205527372U (en) * | 2016-04-12 | 2016-08-31 | 南通润邦重机有限公司 | Steady goods system of hoist with adjustable angle |
| CN111874798A (en) * | 2020-08-26 | 2020-11-03 | 成都世唯科技有限公司 | Control method and system for blade lifting appliance |
| CN214653097U (en) * | 2021-02-04 | 2021-11-09 | 上海铧景海洋工程有限公司 | Cable wind system for hoisting blades of offshore wind turbine |
| CN216945894U (en) * | 2022-02-23 | 2022-07-12 | 福建海电运维科技有限责任公司 | Crane cable wind cable stabilizing system |
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