CN112340618A - Process for replacing large part of offshore wind turbine generator in intertidal zone of high beach surface - Google Patents
Process for replacing large part of offshore wind turbine generator in intertidal zone of high beach surface Download PDFInfo
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- CN112340618A CN112340618A CN202011125729.3A CN202011125729A CN112340618A CN 112340618 A CN112340618 A CN 112340618A CN 202011125729 A CN202011125729 A CN 202011125729A CN 112340618 A CN112340618 A CN 112340618A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the field of maintenance of offshore wind turbine generators, and provides a process for replacing large components of an offshore wind turbine generator in a tidal zone of a high beach surface, which comprises the following steps: the crane comprises an approach stage, a preparation stage I before hoisting, a preparation stage II before hoisting, a hoisting stage, a loading and unloading stage, a recovery stage and a transition stage, and further comprises a replacing stage and a receiving stage, wherein the crane travels through a buoyancy tank crawler, the negative pressure base cylinder is used for fixing and piling, a crane boom is hoisted, and a telescopic pull rod is used for stabilizing a truss, so that the crane can stably and stably run, and is convenient to travel, and the hoisting and replacing are efficient. According to the invention, large parts can be replaced without installing a ship or a platform on the large deep draft offshore wind turbine, so that the waiting tide level time for replacing the large parts in the intertidal zone of the high beach surface is avoided, the overhaul period is greatly shortened, the offshore wind power operation and maintenance cost is remarkably reduced, and a complete scheme is provided for replacing the large parts of the wind turbine in the intertidal zone.
Description
Technical Field
The invention relates to the field of maintenance of offshore wind turbine generators, in particular to a process for replacing large components of an offshore wind turbine generator in a tidal zone of a high beach surface.
Background
Most parts in the marine wind turbine engine room are mainly a gear box, a generator and the like, the reliability of the marine wind turbine engine room has great influence on the safety of the wind turbine engine room, once a fault occurs, the maintenance and the replacement are extremely difficult, and the marine wind turbine engine room is influenced by ocean weather and hydrology, so that the fault and the shutdown time are long. The conventional large part is replaced by installing a ship or a platform by using an offshore wind turbine, the large part with the fault is disassembled by using a large crane on the ship or the platform, the new large part is replaced, but the large part is positioned in a high intertidal zone or an offshore wind turbine position of an intertidal zone of a beach surface, the large part for installing the ship or the platform is difficult to enter, and the waiting tide rising time is long, so that the great power generation loss is caused. In view of the above situation, the invention designs a self-maintenance type replacement process for large parts of an offshore wind turbine, and the large parts can be replaced without using a large installation ship or a large platform.
Disclosure of Invention
The invention aims to provide a replacement process for a large part of an offshore wind turbine generator, which is suitable for intertidal zones or climax of a high beach surface, and has the advantages of avoiding waiting for tide expansion for a long time, enlarging an overhaul operation window and reducing overhaul operation cost.
The technical scheme provided by the invention is as follows: a process for replacing a large part of an offshore wind turbine generator in a tidal zone of a high beach surface comprises the following steps:
s1, in an approach stage, a cargo boom and a telescopic upright post of a crane are horizontally placed above a rectangular base of the crane in a folded state, a negative pressure base cylinder arranged on supports on two sides of the rectangular base of the crane is in a lifting state, the crane adopts a buoyancy tank crawler as a walking mechanism, the buoyancy tank crawler is connected below the rectangular base through support legs extending along the diagonal line of the rectangular base, the bottom surface of the negative pressure base cylinder is higher than the upper surface of the buoyancy tank crawler, and the crane is driven to walk to an offshore wind turbine maintenance area of an intertidal zone;
s2, in a preparation stage I before hoisting, driving the telescopic upright post to rotate and expand to a vertical state, fixing one end of a telescopic pull rod on a truss at the top of the telescopic upright post, and fixing the other end of the telescopic pull rod on the supporting leg;
s3, in the second preparation stage before hoisting, driving the negative pressure base cylinder fixed on the bracket to be lowered, and enabling an opening part at the lower end of the negative pressure base cylinder to be inserted into a mud beach of the intertidal zone;
s4, in the hoisting stage, a telescopic upright post is driven to lift, a telescopic pull rod is driven to stretch, after the truss is lifted to a specified height, the telescopic pull rod is locked and fixed, a lifting arm on a base above the truss is driven to extend, a lifting hook at the front end of the lifting arm is connected and fixed with a fan component to be overhauled or replaced, and the lifting arm is driven to rotate to lift the lifted fan component;
s5, in the loading and unloading stage, the base above the truss is driven to rotate, so that the cargo boom is far away from the fan tower, the winch on the truss is driven to lower the rope connected with the lifting hook, and the fan component is lowered to the small low-draft seatable flat-bottom ship close to the buoyancy tank crawler;
s6, in the recovery stage, the winch is driven to recover the rope, the boom is adjusted to contract and is driven to rotate and descend to the horizontal state, the telescopic pull rod is unlocked, and the telescopic upright post is driven to contract and descend;
s7, in a transition stage, driving the negative pressure base cylinder to be lifted to be higher than the buoyancy tank crawler belt, and driving the buoyancy tank crawler belt to walk to enable the crane to move to the bank; or continuing to travel to another site to be overhauled, and repeating the steps S3 to S7.
Further, the step between S5 and S6 further includes the step Q1: and in the replacement stage, the fan component after the maintenance is completed on the flat-bottomed ship or the brand new fan component to be replaced is fixedly connected with the lifting hook, the winch is driven to tighten up the rope to hoist and lift the fan component after the maintenance is completed or the brand new fan component to be replaced, the truss is driven to rotate, the end part of the cargo boom is close to the fan tower, the winch is driven to lower part of the rope, and the fan component after the maintenance is completed or the brand new fan component to be replaced reaches a fan tower replacement point to complete the replacement of the fan component.
Further, the step S7 is followed by the step S8: and in the collecting stage, one end of the telescopic pull rod connected with the truss is detached and is placed upside down on the fixed buckles on the two sides of the rectangular base, and the telescopic upright post is driven to rotate and fold to a horizontal state.
Furthermore, a first hydraulic rod is fixed on a base of the crane and connected with the middle lower part of the telescopic upright post, and the telescopic upright post is adjusted in a telescopic mode through a first hydraulic cylinder.
Furthermore, a second hydraulic rod is fixed on one side of the base above the truss and connected with the middle lower part of the crane boom.
Further, the negative pressure base cylinder is connected with the support through a second hydraulic cylinder, a pumping pump is arranged above the end part of the support respectively, and the pumping pump treats that an opening part at the lower end of the negative pressure base cylinder is inserted into a intertidal zone mud beach and then is used for pumping pressure inside the negative pressure base cylinder.
Furthermore, the landing leg pass through the third pneumatic cylinder with the flotation tank crawler connection, all install laser range finder around the rectangular base outside, the height of laser range finder detectable barrier and the distance of hoist and barrier, hoist control the lifting of third pneumatic cylinder the base, so that the hoist is marchd the in-process and is avoided the barrier.
Further, the replacement process further comprises a control method Q2: when the floating box crawler belt is in a flood tide stage, a pressure sensor is mounted on the inner side of the floating box crawler belt, and when the pressure sensor identifies the pressure of tide water impacting the floating box crawler belt, the third hydraulic cylinder is driven to enable the base to descend, and the floating box crawler belt is suspended on the horizontal plane; when the pressure sensor identifies that the pressure impacting the buoyancy tank crawler belt tends to be zero in the ebb phase, the third hydraulic cylinder adjusts the height in a self-adaptive mode so that the crane avoids obstacles.
Further, the step S7 further includes: when the buoyancy tank crawler is suspended on the horizontal surface, before the negative pressure base cylinder is driven to lift, a towing block arranged on one side of the base is connected with the small low-draft beach flat-bottom ship in advance, and then the crane is towed to the bank or another site to be overhauled by the small low-draft beach flat-bottom ship.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, a large part can be replaced without installing a ship or a platform on a large deep draft offshore wind turbine, so that the waiting tide level time for replacing the large part in a tidal zone on a high beach surface is avoided, the overhaul period is greatly shortened, the offshore wind power operation and maintenance cost is remarkably reduced, and a complete scheme is provided for replacing the large part of the wind turbine on the tidal zone;
(2) the invention can adapt to the complex terrain of intertidal zones on the high beach surface by the walking of the buoyancy tank crawler belt, and is not easy to sink into a mud beach, in addition, the buoyancy tank crawler belt can float along with the tide water, so that the electromechanical equipment is ensured to be positioned above the sea level, and the buoyancy tank crawler belt can self-adaptively adjust the height under the identification of the laser range finder and the pressure sensor, so as to avoid touching obstacles and improve the horizontal stability of the crane by lifting;
(3) the invention carries out fixed piling through the negative pressure base cylinder, finishes the integral positioning and stabilization of the crane, provides powerful support for hoisting the crane boom, realizes the pumping pressure in the negative pressure base cylinder through the pumping pressure pump, and further improves the stability of the crane in the hoisting process;
(4) the truss is stabilized by the telescopic pull rod and the telescopic upright post together, so that the support stability of the truss structure is further improved, and meanwhile, the telescopic pull rod is detachable and the telescopic upright post can be folded, so that the stability of the crane in the running process is improved;
(5) the length of the crane boom can be adjusted in a telescopic mode through the crane boom, the crane boom can also be adjusted in a rotating mode, meanwhile, the rotatable base on the truss can drive the crane boom to rotate horizontally, and the hoisting is carried out by controlling the rope to be wound and unwound through the winch, so that multidirectional efficient hoisting and replacement are achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top plan view of the overall structure of the present invention;
the reference numbers are as follows:
1. a cargo boom; 2. a telescopic upright post; 3. a rectangular base; 4. a support; 5. a negative pressure base cylinder; 6. a pontoon crawler; 7. a support leg; 8. a telescopic pull rod; 9. a truss; 10. a base; 11. a hook; 12. a winch; 13. A rope; 14. a first hydraulic lever; 15. a second hydraulic rod; 16. a first hydraulic cylinder; 17. a second hydraulic cylinder; 18. a third hydraulic cylinder; 19. and dragging the block.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, a process for replacing a large component of an offshore wind turbine in a tidal zone of a high beach surface comprises the following steps:
s1, in an approach stage, a cargo boom 1 and a telescopic upright post 2 of a crane are horizontally placed above a rectangular base 3 of the crane in a folded state, negative pressure base cylinders 5 arranged on supports 4 on two sides of the rectangular base 3 of the crane are in a lifting state, the crane adopts a buoyancy tank crawler belt 6 as a travelling mechanism, the buoyancy tank crawler belt 6 is connected below the rectangular base 3 through support legs 7 extending along the diagonal line of the rectangular base 3, the bottom surface of the negative pressure base cylinder 5 is higher than the upper surface of the buoyancy tank crawler belt 6, and the crane is driven to travel to an offshore wind turbine maintenance area in a intertidal zone;
s2, in a preparation stage I before hoisting, the telescopic upright post 2 is driven to rotate and expand to a vertical state, one end of a telescopic pull rod 8 is fixed on a truss 9 at the top of the telescopic upright post 2, and the other end of the telescopic pull rod is fixed on the supporting leg 7;
s3, in the second preparation stage before hoisting, driving the negative pressure base cylinder 5 fixed on the bracket 4 to be lowered, so that the lower end opening part of the negative pressure base cylinder 5 is inserted into the intertidal zone mud beach;
s4, in the hoisting stage, the telescopic upright post 2 is driven to lift, the telescopic pull rod 8 is driven to stretch, after the truss 9 rises to a specified height, the telescopic pull rod 8 is locked and fixed, the crane boom 1 on the base 10 above the truss 9 is driven to extend, the lifting hook 11 at the front end of the crane boom 1 is connected and fixed with a fan component to be overhauled or replaced, and the crane boom 1 is driven to rotate and lift the lifted fan component;
s5, in the loading and unloading stage, the base 10 above the truss 9 is driven to rotate, so that the cargo boom 1 is far away from a fan tower, the winch 12 on the truss 9 is driven to lower the rope 13 connected with the lifting hook 11, and the fan part is lowered to a shallow draft small seatable flat bottom ship close to the buoyancy tank crawler 6;
s6, in the recovery stage, the winch 12 is driven to recover the rope 13, the boom 1 is adjusted to shrink, the boom 1 is driven to rotate and descend to the horizontal state, the telescopic pull rod 8 is unlocked, and the telescopic upright post 2 is driven to shrink and descend;
s7, in a transition stage, driving the negative pressure base cylinder 5 to be lifted to be higher than the buoyancy tank crawler belts 6, and driving the buoyancy tank crawler belts 6 to walk to enable the crane to move to the bank; or continuing to travel to another site to be overhauled, and repeating the steps S3 to S7.
Further, the step between S5 and S6 further includes the step Q1: and in the replacement stage, the fan component after the maintenance is completed on the flat-bottomed ship or the brand new fan component to be replaced is fixedly connected with the lifting hook 11, the winch 12 is driven to tighten up the rope 13 to hoist and lift the fan component after the maintenance is completed or the brand new fan component to be replaced, the truss 9 is driven to rotate, the end part of the crane boom 1 is close to the fan tower, the winch 12 is driven to lower part of the rope 13, and the fan component after the maintenance is completed or the brand new fan component to be replaced reaches a fan tower replacement point to complete the replacement of the fan component.
Further, the step S7 is followed by the step S8: and in the collecting stage, one end of the telescopic pull rod 8 connected with the truss 9 is detached and is placed upside down on the fixed buckles on the two sides of the rectangular base 3, and the telescopic upright post 2 is driven to rotate and fold to a horizontal state.
Furthermore, a first hydraulic rod 14 is fixed on a base of the crane, the first hydraulic rod 14 is connected with the middle lower part of the telescopic upright post 2, and the telescopic upright post 2 is adjusted in a telescopic mode through a first hydraulic cylinder 16.
Furthermore, a second hydraulic rod 15 is fixed on one side of the base 10 above the truss 9, and the second hydraulic rod 15 is connected with the middle lower part of the crane arm 1.
Further, the negative pressure base cylinder 5 is connected with the support 4 through a second hydraulic cylinder 17, the upper part of the end part of the support 4 is respectively provided with a pumping pump, and the pumping pump treats that the opening part at the lower end of the negative pressure base cylinder 5 is inserted into the intertidal zone mud beach and then is used for pumping the inside of the negative pressure base cylinder 5.
Further, the landing leg 7 through third pneumatic cylinder 18 with the flotation tank track 6 is connected, all install laser range finder around the rectangle base 3 outside, the height of laser range finder detectable barrier and the distance of hoist and barrier, the hoist control third pneumatic cylinder 18 lifting the base, so that the hoist is marchd the in-process and is avoided the barrier.
Further, the replacement process further comprises a control method Q2: when the buoyancy tank crawler 6 is in a flood tide stage, a pressure sensor is arranged on the inner side of the buoyancy tank crawler 6, and when the pressure sensor identifies the pressure of tide water impacting the buoyancy tank crawler 6, the third hydraulic cylinder 18 is driven to enable the base to descend, and the buoyancy tank crawler 6 is suspended on the horizontal plane; when in the ebb phase, the pressure sensor recognizes that the pressure impacting the pontoon caterpillar 6 tends to zero, the third hydraulic cylinder 18 is adapted to adjust the height so that the crane avoids obstacles.
Further, the step S7 further includes: when the pontoon caterpillar 6 is suspended on the horizontal surface, the towing block 19 installed at one side of the base is connected to the low draft small beach flat-bottomed vessel in advance before driving the negative pressure base cylinder 5 to be lifted, and then the crane is towed to the bank or another site to be overhauled by the low draft small beach flat-bottomed vessel.
In conclusion, the invention can complete the replacement of the large part without installing a ship or a platform on the large deep draft offshore wind turbine, thereby avoiding the waiting tide level time for the replacement of the large part in the intertidal zone of the high beach surface, greatly shortening the maintenance period, obviously reducing the operation and maintenance cost of offshore wind power, and providing a complete scheme for the replacement of the large part of the wind turbine in the intertidal zone.
It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the specific structures, shapes, or configurations shown in the examples.
It is also noted that the illustrations herein may provide examples of parameters that include particular values, but that these parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error tolerances or design constraints. Directional phrases used in the embodiments, such as those referring to "upper", "lower", "front", "rear", "left", "right", etc., refer only to the orientation of the attached drawings and are not intended to limit the scope of the present application.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A technology for replacing a large component of an offshore wind turbine generator in a tidal zone of a high beach surface is characterized by comprising the following steps:
s1, in an approach stage, a cargo boom and a telescopic upright post of a crane are horizontally placed above a rectangular base of the crane in a folded state, a negative pressure base cylinder arranged on supports on two sides of the rectangular base of the crane is in a lifting state, the crane adopts a buoyancy tank crawler as a walking mechanism, the buoyancy tank crawler is connected below the rectangular base through support legs extending along the diagonal line of the rectangular base, the bottom surface of the negative pressure base cylinder is higher than the upper surface of the buoyancy tank crawler, and the crane is driven to walk to an offshore wind turbine maintenance area of an intertidal zone;
s2, in a preparation stage I before hoisting, driving the telescopic upright post to rotate and expand to a vertical state, fixing one end of a telescopic pull rod on a truss at the top of the telescopic upright post, and fixing the other end of the telescopic pull rod on the supporting leg;
s3, in the second preparation stage before hoisting, driving the negative pressure base cylinder fixed on the bracket to be lowered, and enabling an opening part at the lower end of the negative pressure base cylinder to be inserted into a mud beach of the intertidal zone;
s4, in the hoisting stage, a telescopic upright post is driven to lift, a telescopic pull rod is driven to stretch, after the truss is lifted to a specified height, the telescopic pull rod is locked and fixed, a lifting arm on a base above the truss is driven to extend, a lifting hook at the front end of the lifting arm is connected and fixed with a fan component to be overhauled or replaced, and the lifting arm is driven to rotate to lift the lifted fan component;
s5, in the loading and unloading stage, the base above the truss is driven to rotate, so that the cargo boom is far away from the fan tower, the winch on the truss is driven to lower the rope connected with the lifting hook, and the fan component is lowered to the small low-draft seatable flat-bottom ship close to the buoyancy tank crawler;
s6, in the recovery stage, the winch is driven to recover the rope, the boom is adjusted to contract and is driven to rotate and descend to the horizontal state, the telescopic pull rod is unlocked, and the telescopic upright post is driven to contract and descend;
s7, in a transition stage, driving the negative pressure base cylinder to be lifted to be higher than the buoyancy tank crawler belt, and driving the buoyancy tank crawler belt to walk to enable the crane to move to the bank; or continuing to travel to another site to be overhauled, and repeating the steps S3 to S7.
2. The process for replacing the large components of the offshore wind turbine in the intertidal zone of the high beach of claim 1, wherein the steps S5 and S6 are further performed by the steps Q1: and in the replacement stage, the fan component after the maintenance is completed on the flat-bottomed ship or the brand new fan component to be replaced is fixedly connected with the lifting hook, the winch is driven to tighten up the rope to hoist and lift the fan component after the maintenance is completed or the brand new fan component to be replaced, the truss is driven to rotate, the end part of the cargo boom is close to the fan tower, the winch is driven to lower part of the rope, and the fan component after the maintenance is completed or the brand new fan component to be replaced reaches a fan tower replacement point to complete the replacement of the fan component.
3. The process for replacing the large components of the offshore wind turbine in the intertidal zone of the high beach of claim 2, wherein the step S7 is followed by the step S8: and in the collecting stage, one end of the telescopic pull rod connected with the truss is detached and is placed upside down on the fixed buckles on the two sides of the rectangular base, and the telescopic upright post is driven to rotate and fold to a horizontal state.
4. The process for replacing the large component of the offshore wind turbine generator in the tidal flat surface and intertidal zone of the claim 1 or 3, wherein a first hydraulic rod is fixed on a base of the crane, the first hydraulic rod is connected with the middle lower part of the telescopic upright post, and the telescopic upright post realizes telescopic adjustment through a first hydraulic cylinder.
5. The process for replacing large components of a wind turbine generator at sea on a tidal flat according to claim 4, wherein a second hydraulic rod is fixed on one side of the base above the truss and is connected with the middle lower part of the crane arm.
6. The process for replacing the large component of the offshore wind turbine generator in the intertidal zone of the high beach of claim 5, wherein the negative pressure base cylinder is connected with the bracket through a second hydraulic cylinder, and the upper parts of the end parts of the bracket are respectively provided with a pumping pump which pumps the inside of the negative pressure base cylinder after the opening part at the lower end of the negative pressure base cylinder is inserted into the mud beach of the intertidal zone.
7. The process for replacing the large components of the offshore wind turbine in the intertidal zone of the high beach of claim 6, wherein the support legs are connected with the crawler belts of the buoyancy tank through third hydraulic cylinders, laser range finders are installed around the outer sides of the rectangular bases and can detect the heights of obstacles and the distances between the crane and the obstacles, and the crane controls the third hydraulic cylinders to lift the bases so that the crane avoids the obstacles in the traveling process.
8. The process of replacing large components of a wind turbine generator at sea in a tidal area according to claim 7, wherein the process further comprises a control method Q2: when the floating box crawler belt is in a flood tide stage, a pressure sensor is mounted on the inner side of the floating box crawler belt, and when the pressure sensor identifies the pressure of tide water impacting the floating box crawler belt, the third hydraulic cylinder is driven to enable the base to descend, and the floating box crawler belt is suspended on the horizontal plane; when the pressure sensor identifies that the pressure impacting the buoyancy tank crawler belt tends to be zero in the ebb phase, the third hydraulic cylinder adjusts the height in a self-adaptive mode so that the crane avoids obstacles.
9. The process of replacing large components of a wind turbine generator at sea in a tidal zone according to claim 1 or 8, wherein the step S7 further comprises: when the buoyancy tank crawler is suspended on the horizontal surface, before the negative pressure base cylinder is driven to lift, a towing block arranged on one side of the base is connected with the small low-draft beach flat-bottom ship in advance, and then the crane is towed to the bank or another site to be overhauled by the small low-draft beach flat-bottom ship.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125729.3A CN112340618A (en) | 2020-10-20 | 2020-10-20 | Process for replacing large part of offshore wind turbine generator in intertidal zone of high beach surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011125729.3A CN112340618A (en) | 2020-10-20 | 2020-10-20 | Process for replacing large part of offshore wind turbine generator in intertidal zone of high beach surface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896119A (en) * | 2021-08-27 | 2022-01-07 | 广州文冲船舶修造有限公司 | Locking device for rotating mechanism and floating crane rotating mechanism |
| CN117228552A (en) * | 2023-11-13 | 2023-12-15 | 山东三利实业有限公司 | Hoisting device for installing mining fan |
-
2020
- 2020-10-20 CN CN202011125729.3A patent/CN112340618A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896119A (en) * | 2021-08-27 | 2022-01-07 | 广州文冲船舶修造有限公司 | Locking device for rotating mechanism and floating crane rotating mechanism |
| CN117228552A (en) * | 2023-11-13 | 2023-12-15 | 山东三利实业有限公司 | Hoisting device for installing mining fan |
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