Multi-blade container type lifting appliance for offshore wind power construction and synchronous lifting method

Abstract

The invention provides a multi-blade container type lifting appliance for offshore wind power construction and a synchronous lifting method. The multi-blade container type lifting appliance comprises a lifting appliance body, the top of the lifting appliance body is provided with main lifting points, the main lifting points of the lifting appliance body are evenly distributed on the two sides of the lifting appliance body, and the main lifting points can be connected with main hooks of a crane ship through main lifting belts; sub-lifting point modules are arranged at the bottom of the lifting appliance main body, the lifting appliance main body can be connected with the multiple groups of sub-lifting point modules in a sliding or locking manner, and each group of sub-lifting point modules can lift one blade. According to the multi-blade container type lifting appliance, multiple blades can be lifted at a time, the number of times of lifting operation and the standby time of a ship are remarkably reduced, the limitation of a window period under severe sea conditions is effectively overcome, and therefore the comprehensive operation efficiency and safety of blade transfer are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the offshore wind power construction technical field, and particularly relates to a multi-blade containerized lifting appliance and a synchronous lifting method for offshore wind power construction. BACKGROUND

[0002] In the existing offshore wind power construction process, the loading and unloading of blades and the barge transfer operation mainly rely on the traditional single-blade lifting technology. The technology usually uses a simple lifting appliance composed of a main hook and a special lifting belt (or a steel cable), and only one blade can be lifted at a time. The single-blade loading and unloading needs to be repeated in a cycle of "hooking, lifting, positioning and unhooking". In order to complete the loading and unloading of multiple blades, the same process needs to be repeated several times, resulting in a very long time for the wharf loading, ship loading and barge transfer operation. This has become the "efficiency bottleneck" of the entire offshore construction chain, which seriously slows down the project progress.

[0003] Therefore, the extension of the operation time will directly lead to the increase of the ship standby time, thereby significantly increasing the construction cost of the entire project. In addition, multiple lifting operations also mean more labor input and time cost. For example, in a complex offshore environment, especially during the "ship-to-ship" barge transfer, the posture of the single blade in the air is more likely to sway due to wind and waves, increasing the risk of collision with the ship crane or other structures. At the same time, repeated operations also increase the probability of blade damage or safety accidents caused by human fatigue or misoperation. SUMMARY

[0004] Therefore, the extension of the operation time will directly lead to the increase of the ship standby time, thereby significantly increasing the construction cost of the entire project. In addition, multiple lifting operations also mean more labor input and time cost. For example, in a complex offshore environment, especially during the "ship-to-ship" barge transfer, the posture of the single blade in the air is more likely to sway due to wind and waves, increasing the risk of collision with the ship crane or other structures. At the same time, repeated operations also increase the probability of blade damage or safety accidents caused by human fatigue or misoperation.

[0005] In a first aspect, the present application provides a multi-blade containerized lifting appliance for offshore wind power construction, comprising:

[0006] The lifting appliance main body is provided with a main lifting point at the top, and the main lifting points are evenly distributed on both sides of the main body. The main lifting point can be connected to the main hook of the crane ship through the main lifting belt. The bottom of the lifting appliance main body is provided with a sub-lifting point module, and the lifting appliance main body and the multiple groups of sub-lifting point modules can be connected in a sliding or locking manner. Each group of sub-lifting point modules can lift one blade.

[0007] Further, the lifting appliance main body and the multiple groups of sub-lifting point modules can be connected in a sliding manner, including that the sub-lifting point module is connected to the lifting appliance main body in a sliding manner through a module trolley sliding on a lifting point module track. The module trolley is symmetrically arranged on the front side and the rear side of the bottom of the sub-lifting point module, and the lifting point module track is arranged in the interior of the lifting appliance main body.

[0008] Further, the hoist body and the plurality of sub-lifting point modules can be locked and connected, including: through the bolt type locking pin, the sub-lifting point module and the hoist body can be locked and connected by being screwed and fixed at the same time through the module locking pin hole and the hoist locking pin hole, wherein the module locking pin hole is arranged in the middle of the sub-lifting point module, and the hoist locking pin hole is distributed in the middle of the hoist body along the direction of the lifting point module track.

[0009] Further, the bottom of the sub-lifting point module is provided with a double-ear plate lifting point, and the double-ear plate lifting point can be connected with the blade lifting point on the blade through the sub-lifting belt, thereby lifting the blade.

[0010] In a second aspect, the embodiment of the present application provides a multi-blade container type hoist and a synchronous lifting method for offshore wind power construction, including:

[0011] S1, according to the lifting point spacing of the blade to be lifted, the position of each sub-lifting point module on the hoist body is adjusted, and the sub-lifting point module is locked on the hoist body by using the bolt type locking pin;

[0012] S2, the main lifting point is connected with the crane ship through the main lifting belt, and each sub-lifting point module is connected with the corresponding blade lifting point through the sub-lifting belt;

[0013] S3, the hoist body is lifted by the main hook of the crane ship, and the synchronous lifting of the plurality of blades is realized.

[0014] Further, before each sub-lifting point module is connected with the corresponding blade lifting point through the sub-lifting belt, the blade tooling at the bottom of the plurality of blades needs to be connected, so that the plurality of blades can form an integral structure.

[0015] The beneficial effects of the embodiment of the present application are as follows:

[0016] From the economic aspect, the hoist can realize the containerization and synchronous operation of the plurality of blades, and fundamentally reduce the total number of loading and unloading and the operation time of all blades of a single wind turbine. This improvement directly greatly compresses the occupation amount and lease period of the core equipment (such as deck transport ship and wind turbine installation ship), and significantly reduces the high ship daily cost. At the same time, the shortening of the operation period reduces the on-site labor input and project management cost, brings very considerable economic benefits to the entire offshore wind power construction project, and effectively improves the investment return rate of the project.

[0017] From a technical point of view, the present lifting appliance realizes the breakthrough of modularization and integration in technology. The adjustable sub-lifting point module on the main body structure can flexibly adapt to the lifting point spacing and model of different blades through the module rail and module trolley design, and has strong universality. The bolt type lock pin mechanism ensures the rigid connection of the lifting point and the main body structure, and improves the stability and safety of the whole lifting system. The integrated design simplifies the complex multi-body lifting into a whole and controllable operation, reduces the operation difficulty and technical risk, and is an important progress in the field of heavy lifting technology for offshore wind power.

[0018] From the ergonomics, the present lifting appliance innovates the traditional "single, multiple, cycle" operation mode to "multiple, single, synchronous" mode, so that the loading and unloading efficiency is improved several times. The efficiency leap directly shortens the key path construction period of wharf loading and wind farm barge, reduces the dependence on continuous and stable offshore weather window, and enhances the executability and construction certainty of construction plan. For example, for a four-generation wind turbine installation platform ship, it takes 2 hours to unload a single blade from the hook to the hook, 6 hours to unload three blades, and 3 hours to unload three blades to the deck at one time by using the present lifting appliance, which can shorten the unloading time by 3 hours. In addition, the reduction of operation times also reduces the labor intensity of personnel, the frequency of equipment wear and tear, and the safety risks caused by frequent hooking and unhooking, so as to improve the efficiency while ensuring the safety and quality of operation.

[0019] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by the structure particularly pointed out in the specification, claims and drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 The overall structure schematic diagram of the multi-blade integrated lifting appliance for offshore wind power construction provided by the embodiment of the present application;

[0023] Figure 2The hoist body side view of the multi-blade container type hoist for offshore wind power construction is provided for the embodiment of the present application.

[0024] Figure 3 The hoist body top view of the multi-blade container type hoist for offshore wind power construction is provided for the embodiment of the present application.

[0025] Figure 4 The hoist body front view of the multi-blade container type hoist for offshore wind power construction is provided for the embodiment of the present application.

[0026] Figure 5 The sub-hoisting point module side view of the multi-blade container type hoist for offshore wind power construction is provided for the embodiment of the present application.

[0027] Figure 6 The schematic diagram of the bolt type locking pin of the multi-blade container type hoist for offshore wind power construction is provided for the embodiment of the present application.

[0028] Figure 7 The bearing component schematic diagram of the module trolley of the multi-blade container type hoist for offshore wind power construction is provided for the embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiment is a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0030] Embodiment 1

[0031] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiment is a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application. Figure 1 The multi-blade container type hoist for offshore wind power construction disclosed by the embodiment of the present application is introduced in detail.

[0032] In combination with Figures 1-7 The multi-blade container type hoist for offshore wind power construction provided by the embodiment includes a hoist body 1, the top of the hoist body 1 is provided with a main hoisting point 2, the main hoisting points 2 of the hoist body 1 are evenly distributed on both sides of the main body, and the main hoisting points 2 can be connected to the main hook of the crane ship through the main hoisting belt; the bottom of the hoist body 1 is provided with a sub-hoisting point module 11, and the hoist body 1 and the plurality of sub-hoisting point modules 11 can be connected in a sliding or locking manner, and each sub-hoisting point module 11 can hoist a blade 3.

[0033] In this embodiment, the number of main lifting points 2 is 2, and the main lifting points 2 are single-ear plate hook lifting points; the lifting device bottom is connected with 3 groups of sub-lifting point modules 11, each group of sub-lifting point modules 11 contains 2 sub-lifting point modules 11; the lifting device body 1 and the sub-lifting point module 11 are both made of high-strength steel.

[0034] Further, the lifting device body 1 and the multiple groups of sub-lifting point modules 11 can be slidably connected, including that the sub-lifting point module 11 can be slidably connected with the lifting device body 1 through the module trolley 13 which slides on the lifting point module track 12, wherein the module trolley 13 is symmetrically arranged on the front side and the rear side of the bottom of the sub-lifting point module 11, and the lifting point module track 12 is arranged inside the lifting device body 1.

[0035] Further, the lifting device body 1 and the multiple groups of sub-lifting point modules 11 can be lockably connected, including that the sub-lifting point module 11 and the lifting device body 1 can be lockably connected by screwing and fixing the bolt type locking pin 14 into the module locking pin hole 15 and the lifting device locking pin hole 16 at the same time, wherein the module locking pin hole 15 is arranged in the middle of the sub-lifting point module 11, and the lifting device locking pin hole 16 is distributed in the middle of the lifting device body 1 along the direction in which the lifting point module track 12 is located.

[0036] In this embodiment, the number of lifting device locking pin holes 16 is 11.

[0037] Further, the bottom of the sub-lifting point module 11 is provided with a double-ear plate lifting point 17, and the double-ear plate lifting point 17 can be connected with the blade lifting point on the blade 3 through the sub-lifting belt, so as to lift the blade 3.

[0038] The multi-blade assembly type lifting device provided in this embodiment has the following technical effects:

[0039] 1. By arranging the lifting point module track on the lifting device body 1 and the multiple lifting device locking pin holes 16 distributed on the lifting device body 1, the sub-lifting point module 11 can be smoothly moved on the lifting point module track 12 through the module trolley 13, and the design of the module trolley 13 not only ensures the flexibility during adjustment, but also provides additional lateral support after locking through the close cooperation with the lifting point module track 12, thereby enhancing the rigidity of the entire system.

[0040] 2. The rigid connecting piece, i.e. the bolt type locking pin 14, is used to lock the sub-lifting point module 11 and the lifting device body 1 as a whole, which effectively prevents the blade from swinging and colliding with each other due to wind waves or ship sway during lifting, translation and positioning.

[0041] 3. The sub-lifting point module 11 can flexibly adjust the lifting point spacing according to different types of blades through the lifting device locking pin holes 16 arranged on the lifting device body 1, which improves the versatility of the multi-blade assembly type lifting device and avoids the huge cost of customizing a special lifting device for each type of blade.

[0042] Embodiment 2

[0043] The embodiment provides a synchronous hoisting method for offshore wind blades by using the multi-blade containerized lifting appliance for offshore wind power construction provided in the embodiment 1, and the specific steps are as follows:

[0044] S1, according to the interval of the lifting points of the blade 3 to be hoisted, the position of each sub-lifting point module 11 on the lifting appliance main body 1 is adjusted, and the sub-lifting point module 11 is locked on the lifting appliance main body 1 by using the bolt lock pin 14.

[0045] In S1, according to the interval of the lifting points of the blade 3 to be hoisted, the position of each sub-lifting point module 11 on the lifting appliance main body 1 is adjusted, and the sub-lifting point module 11 is locked on the lifting appliance main body 1 by using the bolt lock pin 14, comprising:

[0046] The operator loosens the bolt lock pin 14, moves the module trolley 13 on the lifting point module track 12, adjusts the position of the sub-lifting point module 11, so that it can accurately correspond to the position of the blade lifting point; align the positions of the module lock pin hole 15 and the lifting appliance lock pin hole 16, pass the bolt lock pin 14 through the lifting appliance lock pin hole 16 and the module lock pin hole 15 and tighten to fix, so that the sub-lifting point module 11 is locked and connected with the lifting appliance main body 1.

[0047] S2, connect the main lifting point 2 with the crane ship through the main lifting belt, and then connect each sub-lifting point module 11 with the corresponding blade lifting point through the sub-lifting belt.

[0048] In S2, the main lifting point 2 is connected with the crane ship through the main lifting belt, and then each sub-lifting point module 11 is connected with the corresponding blade lifting point through the sub-lifting belt, comprising:

[0049] A suitable specification of shackle and main lifting belt 21 is used to connect the single ear plate hook head lifting point at the top of the lifting appliance main body 11 with the main hook of the crane ship or wind turbine installation ship; then the double ear plate lifting point 17 at the bottom of each sub-lifting point module 11 is connected with the corresponding blade lifting point through the sub-lifting belt.

[0050] Before connecting each sub-lifting point module 11 with the corresponding blade lifting point through the sub-lifting belt, a trial lifting operation is needed, which includes lifting the blade 3 slightly off the ground or deck, pausing and checking the entire lifting system, and continuing to lift after confirming that the load of the lifting system is evenly distributed. Pausing and checking the entire lifting system includes but is not limited to checking that all bolt lock pins 14 are tightened and confirmed to be in place.

[0051] S3, lifting the lifting appliance main body 11 through the main hook of the crane ship to realize synchronous lifting of multiple blades 3.

[0052] In S3, the hoist body 11 is hoisted by the main hook of the crane, and the multiple blades 3 are hoisted synchronously, including: the main hook of the crane hoists the hoist body 11 slowly and uniformly, and the three blades 3 are simultaneously hoisted horizontally away from the ground or the deck by the hoist body 11.

[0053] As a preferred embodiment, before the sub-hoisting point module 11 is connected with the corresponding blade hoisting point by the sub-hoisting belt, the blade tooling at the bottom of the multiple blades needs to be connected, so that the multiple blades 3 can form an integral structure.

[0054] It should be noted that the synchronous hoisting method provided by the embodiment can be applied to the following scenarios: 1, a wharf yard loading operation scenario, that is, the pre-stored multiple blades of the wind turbine are efficiently and synchronously hoisted onto the deck transport ship; 2, a wind field site, and the blade transshipment operation between the wind turbine installation ship and the deck transport ship is performed, and the hoist can synchronously transship the three blades required by one wind turbine to the deck of the wind turbine installation ship at one time.

[0055] It should be further noted that in this document, the terms “comprising”, “including”, or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article, or equipment. In addition, the terms “first”, “second”, “third” are only used for description purposes, and cannot be understood as indicating or implying relative importance.

[0056] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments within the technical range disclosed by the present application, or make equivalent replacement to some technical features therein; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A multi-bladed containerized spreader for offshore wind power construction, characterized in that, include: The main body of the lifting device (1) has a main lifting point (2) at the top. The main lifting points (2) of the main body of the lifting device (1) are evenly distributed on both sides of the main body. The main lifting points (2) can be connected to the main hook of the crane ship through the main lifting strap. The bottom of the main body of the lifting device (1) has a sub-lifting point module (11). The main body of the lifting device (1) and multiple sets of sub-lifting point modules (11) can be slidably connected or locked. Each set of sub-lifting point modules (11) can lift one blade (3).

2. The multi-bladed containerized lifting device for offshore wind power construction according to claim 1, characterized in that, The lifting device body (1) and multiple sets of sub-lifting point modules (11) can be slidably connected, including: the sub-lifting point module (11) can be slidably connected to the lifting device body (1) through a module trolley (13) that slides on the lifting point module track (12), wherein the module trolley (13) is symmetrically arranged on the front and rear sides of the bottom of the sub-lifting point module (11), and the lifting point module track (12) is arranged inside the lifting device body (1).

3. The multi-bladed containerized lifting device for offshore wind power construction according to claim 1, characterized in that, The lifting device body (1) and multiple sets of sub-lifting point modules (11) can be locked together, including: by simultaneously inserting bolt-type locking pins (14) into the module locking pin holes (15) and the lifting device locking pin holes (16) and tightening them to lock the sub-lifting point modules (11) and the lifting device body (1). The module locking pin holes (15) are located in the middle of the sub-lifting point modules (11), and the lifting device locking pin holes (16) are distributed in the middle of the lifting device body (1) along the direction of the lifting point module track (12).

4. The multi-bladed containerized lifting device for offshore wind power construction according to claim 1, characterized in that, The bottom of the sub-lifting point module (11) is equipped with a double ear plate lifting point (17), which can be connected to the blade lifting point on the blade (3) through the sub-lifting strap, thereby lifting the blade (3).

5. A method for synchronously hoisting offshore wind turbine blades using a multi-bladed containerized lifting device according to any one of claims 1 to 4, characterized in that, include: S1. According to the distance between the lifting points of the blade (3) to be lifted, adjust the position of each sub-lifting point module (11) on the lifting body (1) and use bolt-type locking pins (14) to lock the sub-lifting point module (11) on the lifting body (1); S2. Connect the main lifting point (2) to the crane ship via the main sling, and then connect each sub-lifting point module (11) to the corresponding blade lifting point via the sub-sling; S3. The main body of the lifting device (11) is lifted by the main hook of the crane ship to realize the synchronous lifting of multiple blades (3).

6. The synchronous hoisting method for offshore wind turbine blades according to claim 5, characterized in that, Before connecting each sub-sling module (11) to the corresponding blade sling, the blade fixtures at the bottom of multiple blades need to be connected so that multiple blades (3) can form an integral structure.

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