CN213502818U

CN213502818U - Special ship for offshore wind power construction

Info

Publication number: CN213502818U
Application number: CN202022060716.4U
Authority: CN
Inventors: 国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-22
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a marine wind power construction special-purpose vessel, its hull adopt neotype many cabins side by side energy-conserving steady flow type hull, set up the square truss-like lift spud leg and the neotype cantilever overhead traveling crane hoisting apparatus of the formula pile shoe that wafts outward that does not have on the hull to supporting a common complete rotary loop wheel machine, demand such as "pile, installation, change" that can accomplish the wind power construction. The cantilever crown block comprises a cantilever and a crown block which is arranged on the cantilever and has the weight lifting capacity, the cantilever is horizontally arranged at the top of the vertical supporting frame and extends out of the outer side of the ship body by a certain length, a gap is formed in the ship body under the projection of the cantilever, and pile grippers are arranged on two sides of the gap. The utility model discloses can obviously improve the efficiency of construction, reduce construction cost, effectively reduce the supporting boats and ships of construction and auxiliary device, have the better ability of taking into account a plurality of projects.

Description

Special ship for offshore wind power construction

Technical Field

The utility model belongs to the technical field of the offshore construction, concretely relates to marine wind power construction special-purpose vessel.

Background

At present, in offshore wind power construction, foundation piling and fan installation need different ships to complete, so the ship input quantity is large, and the specificity of a crane ship adopted in construction is not enough, so that the current situation of high comprehensive cost of wind power construction is caused, and the benign development of the wind power market is unfavorable. Wherein: the conventional crane ship adopted in the piling construction has a difference from the requirement of specialized construction, and various auxiliary facilities are inevitably needed to be matched in the construction to ensure the design index of piling, so that the process path is complex, the auxiliary cost is high, the efficiency is not ideal, and the comprehensive cost of piling construction is high; in addition, the platform type crane ship adopted for installing the wind turbine generator generally has the condition that a large horse pulls a trolley in capacity, and the problems of poor mass energy and low maneuvering efficiency of pile legs in adapting to complex ground can also cause higher construction cost, so that the offshore wind power market development can be influenced by continuing under the condition that the state is about to cancel offshore wind power subsidies. Therefore, by researching the special wind power ship, the construction cost is comprehensively reduced, and the special wind power ship has higher practical value for offshore wind power development.

At present, offshore wind power construction mainly has the following defects in four aspects: firstly, piling and mounting are respectively completed by a large crane ship and a platform crane ship, so that the construction cost is high due to the large number of construction ships and low operation efficiency; secondly, because the single pile weight of the wind power foundation is large, the large-scale full-rotation crane ship is mainly adopted for piling at present, various forms of pile stabilizing platforms, positioning piles and the like are inevitably required to be put into, the auxiliary cost is large, the meteorological influence is sensitive, the piling efficiency is influenced, the best piling efficiency in the southern sea area is 'one pile position per two days', and the wind power special ship can easily realize 'a plurality of pile positions per day' under the same condition; thirdly, various types of crane ships adopted in the existing wind power construction generally have the phenomenon of 'large horse-drawn trolley' in the aspects of ship body size and lifting capacity, and are poor in economy; fourthly, the bottom of each pile leg of the existing platform ship for installing the fan is provided with an outward floating type pile shoe, and the pile shoe has a plurality of defects in use under the complex geological conditions of coastal areas in China, is complex to manage in use and has high requirements on sea conditions. All these disadvantages increase unnecessary construction costs.

With the construction of large-scale wind power, deep water areas and typhoon high-rise areas, if the existing construction mode and ships are continuously used, the four defects are further aggravated only by larger investment, and the current situation of high cost is aggravated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art, provide a marine wind power construction special-purpose vessel.

The utility model discloses a realize through following technical scheme:

a ship special for offshore wind power construction comprises a ship body, and a lifting pile leg, a cantilever crown block lifting device and a crane which are arranged on the ship body;

the liftable pile legs are vertically arranged on the ship body and can be driven to vertically move up and down;

the cantilever crown block hoisting device comprises a vertical support frame and a cantilever crown block arranged at the top of the vertical support frame, wherein the cantilever crown block comprises a cantilever and a crown block which is arranged on the cantilever and has the capacity of hoisting weight;

the crane is arranged on one side of the cantilever crane hoisting device and is used for cooperating with the cantilever crane hoisting device;

a U-shaped gap is formed in the ship body under the projection of a cantilever of the cantilever crane hoisting device, and pile grippers are arranged on two sides of the gap.

In the technical scheme, the ship body comprises 3 ship boxes arranged side by side, a gap is formed between every two adjacent ship boxes, the gap is communicated in the fore-aft direction, so that a longitudinal water flow channel is formed, the tops of the ship boxes are connected to form a main deck, and a flow stabilizing fin is arranged between the bottoms of the two adjacent ship boxes and has a flow stabilizing effect; the ship box is provided with wave dissipation holes which transversely penetrate through the ship box, so that the 'cross drift' attitude of the ship body in navigation can be improved.

In the technical scheme, the number of the liftable pile legs is 4, and the liftable pile legs are arranged at four corners of the ship body in a rectangular shape.

In the technical scheme, the main structure of the liftable pile leg is a truss structure with a square horizontal section, and the liftable pile leg is driven to vertically lift by a gear and rack driving mode, so that the whole ship body is lifted.

In the technical scheme, the bottom of the liftable pile leg is of a box body structure, the lower part of the box body is provided with a downward conical table body, the conicity is more than or equal to 7 degrees, and the bottom end of the box body is of a closed grid structure with an anti-skidding function.

In the above technical scheme, the cantilever of the cantilever crane hoisting device is provided with two parallel tracks for the wheels of the crane to walk, and the crane is movably arranged on the track of the cantilever.

In the technical scheme, two sets of lifting pulley blocks are arranged on the crown block at the top of the cantilever crown block lifting device to realize the large-tonnage lifting function, and each set of lifting pulley block is provided with a main lifting hook; and a small-tonnage auxiliary lifting hook can be arranged on the lifting pulley block according to requirements so as to be matched with the dismounting and mounting of the main lifting hook sling.

In the technical scheme, one side of the vertical support frame of the cantilever crane hoisting device, which is opposite to the cantilever extending direction, is also connected with a lateral triangular connecting frame, and the bottom of the triangular connecting frame is fixedly connected with the ship body, so that the cantilever crane is stably supported.

In the technical scheme, two auxiliary cranes are arranged at the outer end of a cantilever crane hoisting device and are used for adjusting a positioning beam required by piling of a multi-pile foundation; two small-sized lifting hooks for adjusting a hydraulic pipeline during piling are designed on one side, close to the rotary crane, of the track beam.

In the technical scheme, the support frame of the crane and the support frame of the cantilever crane hoisting device are connected through the cross beam to increase the stability.

The utility model discloses an advantage and beneficial effect do:

the utility model discloses a neotype cantilever overhead traveling crane hoisting apparatus, novel lift spud leg, neotype energy-saving hull that bear the weight of the mode, through a supporting common full gyration loop wheel machine, demand such as "pile, installation, change" that just can accomplish the wind-powered electricity generation construction. All the supporting equipment of special-purpose ship are simple and practical, and the adaptability to complicated geology can be strong, and the sexual valence is higher, for the construction ship that current wind-powered electricity generation construction adopted, under the same condition, can obviously improve the efficiency of construction, can obviously reduce construction cost, can effectively reduce construction supporting boats and ships and auxiliary device, have the better ability of taking into account a plurality of projects.

Drawings

Fig. 1 is a top view of the marine wind power construction vessel of the present invention;

FIG. 2 is a front view of the special ship for offshore wind power construction of the present invention;

FIG. 3 is a side view of the marine wind power construction vessel of the present invention;

fig. 4 is the structure schematic diagram of the hull of the marine wind power construction special-purpose vessel of the utility model.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.

Example one

Referring to the attached drawings, the ship special for offshore wind power construction comprises a ship body 1, and a liftable pile leg 2, a cantilever crane hoisting device 3 and a crane 4 which are arranged on the ship body.

The liftable pile legs 2 are vertically arranged on the ship body and can be driven to vertically move up and down, so that the liftable pile legs are placed in a seabed soil layer, and the position of the ship body is fixed. Specifically, the main structure of the liftable pile leg 2 is a truss structure with a square horizontal section, one group of opposite angles of the square truss and a constraint component on the ship body are vertically installed in a sliding mode, so that the truss only has vertical (Z-direction) movement freedom, a rack is arranged on the other group of opposite angles of the square truss along the height direction of the truss, a gear driving mechanism for driving the rack is arranged on the ship body, and the liftable pile leg is driven to vertically move up and down; the number of the liftable pile legs is preferably 4, and the liftable pile legs are arranged at four corners of the ship body 1 in a rectangular shape; the bottom of the liftable pile leg is a box body 2-1, the height of the box body is determined according to the depth of the soil, the box body is inserted into a seabed soil layer during working, the lower part of the box body is a downward conical platform body, the conicity is more than or equal to 7 degrees, and the bottom end of the box body is of a closed grid structure with an anti-skidding function. The principle of the liftable pile leg is that the bearing capacity is formed by combining vertical bearing of the projection surface of the pile leg and friction bearing of the side wall after the pile leg enters the soil, the depth of the bearing pile leg entering the soil is larger than that of the pile leg with the externally floating type pile shoe, the cantilever risk is avoided in rock geology, the depth of the bearing pile leg entering the soil is smaller than that of the bearing pile leg entering the soil, and particularly the pile leg is not piled up and loaded when the pile leg is lifted in.

The cantilever overhead traveling crane hoisting device 3 comprises a vertical support frame 3-1 and a cantilever overhead traveling crane 3-2 arranged at the top of the vertical support frame, specifically, the vertical support frame 3-1 adopts a truss support structure, the cantilever overhead traveling crane 3-2 comprises a cantilever 3-21 and an overhead traveling crane 3-22 which can walk on the cantilever and has the hoisting capacity, the cantilever 3-21 is horizontally arranged at the top of the vertical support frame 3-1, the cantilever 3-21 is arranged along the length direction of a ship body, the cantilever extends out to the outer side of the ship body for a certain length, two parallel tracks for the wheels of the overhead traveling crane to walk are arranged on the cantilever 3-21, the overhead traveling crane 3-22 is movably arranged on the tracks of the cantilever, a hoisting pulley block is arranged on the overhead traveling crane, and a matched winch is arranged on the deck to realize the hoisting function.

The crane 4 is arranged on one side of the cantilever crane hoisting device and is used for being matched with the cantilever crane hoisting device to operate, the crane adopts a full-rotation crane, and the maximum hoisting capacity of the crane is about 800 t.

After the ship body runs to the offshore construction station, the liftable pile legs 2 descend, and the whole ship body is lifted to be separated from the sea surface (preferably to be separated from the sea surface by 10 meters) through the 4 liftable pile legs 2, so that the ship body forms a stable offshore fixed construction platform.

When piling, two main lifting hooks of cantilever overhead traveling crane hoisting device 3 are direct to take the stake from the fortune pile ship, hoist 4 is supplementary to be accomplished "swift current tail", promote jointly and hoist the stake to appropriate height, wait to transport the pile ship and leave the working face, cantilever overhead traveling crane hoisting device 3 promotes the stake, hoist 4 descends, accomplish founding the stake, found the stake completion back, cantilever overhead traveling crane hoisting device can be hanging the inboard pile gripper center of stake and remove, the adjustment of going down the stake, the hoist can mention the pile hammer of piling this moment and prepare the pile driving.

A U-shaped gap 1-1 is formed in a ship body 1 projected by a cantilever 3-21 of a cantilever crane hoisting device 3 according to the requirement of a piling diameter, pile grippers with split semicircular structures are arranged on two sides of the gap, and the position and the perpendicularity of a pile can be accurately adjusted. Before the pile is driven, open half semi-circular structure pile gripper and open completely, ensure that the stake gets into pile gripper smoothly, can accomplish the pile gripper after the stake gets into pile gripper, then descend through the overhead traveling crane main hook, accomplish down the stake, the stake completion back of going down, the overhead traveling crane takes the hoist cable to walk to the pile position, ensures to let the headspace of opening the stake completely, later the loop wheel machine can be taken the hammer and prepare the pile driving.

Example two

Further, the hull 1 can refer to 2019211082164 that patent number is, the multi-body engineering ship hull structure that publishes, it includes 3 ship casees that set up side by side, has the clearance between two adjacent ship casees, and this clearance bow stern direction link up to form longitudinal water flow channel, and connect between the top of ship case and form the main deck, the hull width will guarantee can be at cantilever overhead traveling crane hoisting device other arrangement full gyration loop wheel machine, the loop wheel machine can be "cylindricality and hang or hang around the stake", be used for taking into account cooperation pile driving and fan installation needs, realize pile driving, the integration of installation function. A lifting cabin structure is designed to extend upwards along the front cabin wall and the rear cabin wall of the lifting pile leg; on the other hand, at the bottom of the lifting structure, a connecting structure needs to be designed, the length of the connecting structure is the distance between the front bulkhead and the rear bulkhead of the pile leg, the height of the connecting structure is about 1m, the lifting cabin can ensure the strength of the hull structure, and the bottom support can form transverse frame reinforcement. The distance between the three ship boxes is more than or equal to 3m, so that the navigation resistance can be greatly reduced; secondly, a flow stabilizing fin is arranged between the bottoms of two adjacent ship boxes, so that the ship boxes have a flow stabilizing effect; in addition, the ship box is provided with wave dissipation holes which transversely penetrate through the ship box, so that the 'cross drift' attitude of the ship body in navigation can be improved, and the three effects are accumulated, so that an obvious energy-saving effect can be generated.

EXAMPLE III

Furthermore, the liftable pile leg has relatively light overall weight due to the fact that the pile shoe does not float outwards, the soil body is basically prevented from collapsing and piling after entering the mud, the upward pulling force is greatly reduced, meanwhile, the structure can be disassembled and assembled from the upper portion of the ship body, and the characteristic has practical value to the building process and daily maintenance.

Furthermore, the size of the square horizontal section of the liftable pile leg can be determined according to about 60% of the area of the outer floating pile shoe calculated under the same condition, and the proportion can obtain a better composite bearing effect.

Example four

Furthermore, two sets of lifting pulley blocks 3-23 are arranged on an overhead traveling crane 3-22 at the top of the cantilever overhead traveling crane lifting device 3 to realize a large-tonnage lifting function, the lifting capacity of main lifting hooks of the two sets of lifting pulley blocks is evenly distributed, and the direction and the distance correspond to the lifting points of the large-diameter single pile, so that the lifting operation is guaranteed to be simplest; corresponding to the two main lifting hooks, a small-tonnage auxiliary lifting hook can be designed on the lifting pulley block according to requirements so as to be matched with the disassembly and assembly of the main lifting hook rigging.

Further, the height of a vertical support frame 3-1 of the cantilever crane hoisting device 3 is determined according to the piling length; the length of the cantilever 3-21 is usually less than or equal to 15 m.

Furthermore, one side of the vertical support frame 3-1 of the cantilever crane hoisting device 3, which is opposite to the extending direction of the cantilever 3-21, is also connected with a lateral triangular connecting frame 5, and the bottom of the triangular connecting frame 5 is fixedly connected with the ship body, so that the structural stability of the cantilever crane is ensured.

Furthermore, two auxiliary cranes can be arranged at the outer end of a cantilever of the cantilever crane hoisting device and are used for adjusting a positioning beam required by piling of a multi-pile foundation; two small-sized lifting hooks for adjusting a hydraulic pipeline during piling are designed on one side, close to the rotary crane, of the track beam.

Furthermore, the supporting frame of the crane and the supporting frame of the cantilever crane hoisting device are connected through a cross beam 6 to increase the stability.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.

Claims

1. A ship special for offshore wind power construction is characterized in that: the device comprises a ship body, and a lifting pile leg, a cantilever crane hoisting device and a crane which are arranged on the ship body;

2. The marine wind power construction dedicated vessel according to claim 1, characterized in that: the ship body comprises 3 ship boxes arranged side by side, a gap is formed between every two adjacent ship boxes, the gaps are communicated in the fore-aft direction, so that a longitudinal water flow channel is formed, the tops of the ship boxes are connected to form a main deck, and a flow stabilizing fin is arranged between the bottoms of the two adjacent ship boxes; the ship box is provided with wave dissipation holes which transversely penetrate through the ship box.

3. The marine wind power construction dedicated vessel according to claim 1, characterized in that: the number of the liftable pile legs is 4, and the liftable pile legs are arranged at four corners of the ship body in a rectangular shape.

4. The marine wind power construction dedicated vessel according to claim 1, characterized in that: the main structure of the liftable pile leg is a truss structure with a square horizontal section, and the liftable pile leg is driven to vertically move by a gear and rack driving mode.

5. The marine wind power construction dedicated vessel according to claim 4, characterized in that: the bottom of the liftable pile leg is of a box structure, the lower part of the box is a downward conical table body, the taper is more than or equal to 7 degrees, and the bottom end of the box is of a closed grid structure with an anti-skidding function.

6. The marine wind power construction dedicated vessel according to claim 1, characterized in that: the cantilever of the cantilever crane hoisting device is provided with two parallel tracks for wheels of the crane to walk, and the crane is movably arranged on the track of the cantilever.

7. The marine wind power construction dedicated vessel according to claim 1, characterized in that: two sets of hoisting pulley blocks are arranged on a crown block at the top of the cantilever crown block hoisting device, and each set of hoisting pulley block is provided with a main hook; and a small-tonnage auxiliary lifting hook is also arranged on the hoisting pulley block.

8. The marine wind power construction dedicated vessel according to claim 1, characterized in that: the cantilever crane hoisting device is characterized in that one side of the vertical support frame opposite to the cantilever extending direction is also connected with a lateral triangular connecting frame, and the bottom of the triangular connecting frame is fixedly connected with the ship body, so that the cantilever crane is stably supported.

9. The marine wind power construction dedicated vessel according to claim 1, characterized in that: two auxiliary cranes are arranged at the outer end of a cantilever of the cantilever crane hoisting device; two small-sized lifting hooks for adjusting a hydraulic pipeline during piling are designed on one side, close to the rotary crane, of the track beam.

10. The marine wind power construction dedicated vessel according to claim 1, characterized in that: the supporting frame of the crane is connected with the supporting frame of the cantilever crane hoisting device through a cross beam.