CN208441085U - A kind of offshore wind turbine single-pile foundation of the both ends with plugging device - Google Patents

Abstract

A kind of offshore wind turbine single-pile foundation the utility model discloses both ends with plugging device, including single pile, left plugging device, right plugging device, traction device；The left end of single pile, right end are respectively arranged with left plugging device, right plugging device；The upper side of single pile is provided with inlet valve；It is also extended through on single pile and is provided with cylindricality lifting lug；Traction device is set to the outside of single pile, including connecting rod, upper hauling rope, lower hauling rope, latch hook；Latch hook is respectively arranged at the right end end of hauling rope, lower hauling rope；Upper hauling rope, lower hauling rope left end be connected on the right side of connecting rod, right end passes through latch hook and is connected with the annular groove of cylindricality lifting lug end.Cost is relatively low and installation is simple for the utility model, by the way that plugging device is arranged at the both ends of single pile, reduce the equipment hoisting power of single-pile foundation in work progress, reduce requirement of the single-pile foundation construction to marine transportation equipment and lifting ship equipment, reduce task difficulty, be conducive to project to quickly propel, investment reduction cost.

Description

A kind of offshore wind turbine single-pile foundation of the both ends with plugging device

Technical field

A kind of a kind of offshore wind turbine single pile the present invention relates to offshore wind turbine single-pile foundation more particularly to both ends with plugging device Basis.

Background technique

Support system of the blower foundation as Wind turbines, at sea wind-powered electricity generation construction in status it is particularly significant.Both at home and abroad The marine wind electric field built up mainly uses following several base forms: single-pile foundation, tripod basis, is led at gravity type foundation Pipe support basis, bearing platform type basis, buoyant foundation and suction cartridge type basis.Wherein, single-pile foundation structure form is simple, and stress is bright Really, under the premise of having piling and lifting appliance ability, speed of application is fast, at home and abroad in wind power plant proportion up to 65% More than.

Currently, the construction of marine wind electric field single-pile foundation carries out lifting construction work by seat beach ship or jack up supporting leg ship Industry.Single-pile foundation mostly uses large diameter steel pipe pile, with the development of marine high-power blower unit and the site of marine wind electric field The diameter of the increase of the region depth of water, the steel-pipe pile of single-pile foundation increases, and wall thickness increases, and weight becomes weight, special to marine transportation equipment It is not that the requirement of rig a ship equipment is got higher, existing construction equipment is caused not to be able to satisfy the requirement of offshore construction.

This just needs the higher ship equipment of crane capacity, or selects other kinds of base form.Former approach It needs to research and develop and buys novel construction ship, the period is long, and investment is big, is unfavorable for quickly propelling for project；Later approach due to Using other kinds of base form, difficulty of construction and offshore construction activity duration are increased, cost of investment is increased.

Utility model content

A kind of sea turn in order to solve shortcoming present in above-mentioned technology, the present invention provides both ends with plugging device Machine single-pile foundation.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of sea of the both ends with plugging device Upper fan single-pile foundation, including single pile, left plugging device, right plugging device, traction device；Single pile is both ends open and inner hollow Column construction；The left end of single pile, right end are respectively arranged with left plugging device, right plugging device；The upper side of single pile is provided with inlet valve；

Cylindricality lifting lug is fixedly installed on the outer wall of single pile；Cylindricality lifting lug is two, and two cylindricality lifting lugs are respectively arranged at Left side front end, the left side rear end of single pile；The end of cylindricality lifting lug is welded with circular steel plate, and circular steel plate is formed with cylindricality lifting lug Annular groove；

Traction device is set to the outside of single pile, including connecting rod, upper hauling rope, lower hauling rope, latch hook；Latch hook is set respectively It is placed in the right end end of hauling rope, lower hauling rope；Upper hauling rope, lower hauling rope left end be connected with the right side of connecting rod It connects, right end passes through latch hook and is connected with the annular groove of cylindricality lifting lug end.

The pile diameter of single pile is not less than 5000mm.

Left plugging device, right plugging device are solid column construction, and the outer diameter of column construction and the internal diameter of single pile match.

The left side of connecting rod is connected by drawstring with towboat.

Cost is relatively low and installation is simple for the utility model, by the way that plugging device is arranged at the both ends of single pile, by natural buoyancy The equipment hoisting power for reducing single-pile foundation in work progress reduces single-pile foundation construction to marine transportation equipment and lift-on and lift-off ship The requirement of oceangoing ship equipment reduces offshore construction task difficulty, is conducive to quickly propelling for project, investment reduction cost.

Detailed description of the invention

Fig. 1 is the partial structure diagram of the utility model.

Fig. 2 is the marine transportation process schematic of the utility model.

Fig. 3-4 is the marine righting process schematic of the utility model.

Fig. 5 is the Attention problems process schematic of the utility model.

In figure: 1, left plugging device；2, cylindricality lifting lug；3, inlet valve；4, single pile；5, right plugging device；6, connecting rod；7, it is led on Straw line；8, lower hauling rope；9, towboat；10, latch hook；11, draw bar；12, suspension hook；13, pile hammer；14, pile gripper；15, mud face.

Specific embodiment

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

As shown in Figure 1, a kind of offshore wind turbine single-pile foundation of both ends with plugging device, including single pile 4, left plugging device 1, right envelope Stifled device 5, traction device；Single pile 4 is the column construction of both ends open and inner hollow, and the pile diameter of single pile 4 is not less than 5000mm.The left end of single pile 4, right end are respectively arranged with left plugging device 1, right plugging device 5；Left plugging device 1, right plugging device 5 are real The internal diameter of the column construction of the heart, the outer diameter and single pile 4 of column construction matches, and left plugging device 1, right plugging device 5 are according to using need Asking can be mounted and dismounted.The upper side of single pile 4 is provided with inlet valve 3.

As shown in Fig. 2, being fixedly installed cylindricality lifting lug 2 on the outer wall of single pile 4；Cylindricality lifting lug 2 is two, and two cylindricalitys are hung Ear is respectively arranged at the left side front end of single pile, left side rear end；The end of cylindricality lifting lug is welded with circular steel plate, circular steel plate with Cylindricality lifting lug forms annular groove；

As shown in Figure 2,3, traction device is set to the outside of single pile 4, including connecting rod 6, upper hauling rope 7, lower hauling rope 8, latch hook 10；Latch hook 10 is respectively arranged at the right end end of hauling rope 7, lower hauling rope 8；Upper hauling rope 7, lower hauling rope 8 Left end is connected with the right side of connecting rod 6, and right end passes through latch hook 10 and is connected with the annular groove of 2 end of cylindricality lifting lug.Even The left side of extension bar 6 is connected by drawstring with towboat 9.

The specifically used mode of the utility model are as follows: single-pile foundation is transported by towboat 9 and reaches specified construction location, Before the transport of 4 towed vessel 9 of single pile, in the left end of single pile 4, right end left plugging device 1, right plugging device 5 is installed respectively, makes 4 shape of single pile It at closed space, prevents seawater from entering the inside of single pile 4, reduces the equipment hoisting power of single-pile foundation using buoyant of sea water. During towboat 9 transports single-pile foundation, single pile 4 is in floating state, reduces towboat 9 under the action of natural buoyancy Energy consumption in transportational process.After single-pile foundation is transported to designated position, the constructions such as marine righting, positioning, sea turn are carried out The construction of electric field single-pile foundation generally passes through the progress of jack up supporting leg ship.Construction process is as follows: jack up supporting leg ship is in place, rises certainly The suspension hook 12 of formula supporting leg ship carries out double hook lifting, single-pile foundation by the fixed single-pile foundation of the pile gripper 14 of righting, pile driving barge, piling 13 piling location of pile hammer of ship etc..The suspension hook 12 of jack up supporting leg ship loop wheel machine hooks the connecting rod 6 of single-pile foundation and to single pile 4 Gradually righting is carried out, since single pile 4 is constantly in water and inner hollow, single pile 4 receive very big buoyancy, suspension hook 12 at this time Suffered pulling force is much smaller than pulling force suffered when single pile 4 of the lifting without plugging device.Single-pile foundation is by after righting, by pile driving barge Pile gripper 14 be connected with single pile 4, fixed single-pile foundation.Left plugging device 1 is disassembled, the inlet valve 3 of single-pile foundation, single pile are opened Start to intake in 4, single-pile foundation sinks down into 15 or less mud face under the effect of gravity；Inside and outside single pile after hydraulic balance, take Then right plugging device 5 out carries out piling construction with the top that the pile hammer of pile driving barge 13 strikes single pile 4, complete single pile installation.

The utility model compared with prior art, has the advantage that

1) by the way that plugging device is arranged at the both ends of single pile, offshore construction is carried out by buoyant of sea water, reduces marine wind electric field Requirement of the single-pile foundation construction process to marine transportation equipment and lifting ship equipment；

2) plugging device can mount and dismount according to actual needs, easy to operate, and failure rate is low；

3) plugging device can reuse, and cost is relatively low, long service life, economic and reliable；

4) offshore construction task difficulty is reduced, quickly propelling for project, investment reduction cost are conducive to；

Above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck The variations, modifications, additions or substitutions that the technical staff in domain is made within the scope of technical solution of the present invention, also belong to this hair Bright protection scope.

Claims (4)

1. a kind of offshore wind turbine single-pile foundation of both ends with plugging device, it is characterised in that: including single pile (4), left plugging device (1), Right plugging device (5), traction device；The single pile (4) is the column construction of both ends open and inner hollow；The single pile (4) Left end, right end are respectively arranged with left plugging device (1), right plugging device (5)；The upper side of the single pile (4) is provided with inlet valve (3)；

Cylindricality lifting lug (2) are fixedly installed on the outer wall of the single pile (4)；The cylindricality lifting lug (2) is two, and two cylindricalitys are hung Ear is respectively arranged at the left side front end of single pile (4), left side rear end；The end of the cylindricality lifting lug (2) is welded with circular steel plate, Circular steel plate and cylindricality lifting lug (2) form annular groove；

The traction device is set to the outside of single pile (4), including connecting rod (6), upper hauling rope (7), lower hauling rope (8), lock Hook (10)；The latch hook (10) is respectively arranged at the right end end of hauling rope (7), lower hauling rope (8)；The upper hauling rope (7), the left end of lower hauling rope (8) is connected on the right side of connecting rod (6), and right end passes through latch hook (10) and cylindricality lifting lug (2) annular groove of end is connected.

2. offshore wind turbine single-pile foundation of the both ends according to claim 1 with plugging device, it is characterised in that: the single pile (4) pile diameter is not less than 5000mm.

3. offshore wind turbine single-pile foundation of the both ends according to claim 2 with plugging device, it is characterised in that: the left closure Device (1), right plugging device (5) are solid column construction, and the internal diameter of the outer diameter and single pile (4) of column construction matches.

4. offshore wind turbine single-pile foundation of the both ends according to claim 3 with plugging device, it is characterised in that: the connecting rod (6) left side is connected by drawstring with towboat (9).