CN213867912U - Plugging device for floating transportation of large-diameter steel piles on sea - Google Patents

Abstract

The utility model discloses a plugging device for marine major diameter piling bar transportation by flotation, the plugging device comprises guide block, lining ring, sealing device, flotation pontoon, clamping fixture, limit and turn round flotation tank, control module, realizes fixed clamping through clamping fixture and piling bar end wall, the plugging device is provided with two sets of sealing device with the annular direction of piling bar internal contact, forms a watertight flotation pontoon with the piling bar, satisfies marine transportation needs; the torsion limiting floating boxes are symmetrically arranged at the left and right sides of the rear end of the plugging device, so that the underwater torsion of the steel piles during transportation can be prevented; the sealing device through gas injection has better adaptability of filling joints, can adapt to the roundness deformation of the steel pile, and is reliable in sealing; the control module can realize remote operation, the releasing operation is simple, and the release can be realized quickly; the complete plugging device is simple in structure, convenient to install and operate, capable of effectively plugging external seawater and preventing the seawater from entering the steel pile, good in installation adaptability, simple to manufacture and good in economical efficiency.

Description

Plugging device for floating transportation of large-diameter steel piles on sea

Technical Field

The utility model relates to a plugging device of marine piling bar transportation especially relates to a plugging device that is used for marine major diameter piling bar transportation by flotation, belongs to ocean engineering structure transportation technical field.

Background

At present, the global offshore wind power market is developed rapidly, the comprehensive economy of the large-diameter steel pile is good, the requirement of the foundation of the wind turbine with the water depth within 50m can be met, and the large-diameter steel pile is widely applied. However, the steel pile transportation needs a special barge, is limited by ship resources, and is difficult to meet the needs of numerous development projects at the same time. At the same time, the transportation costs of the barge are high, making the overall development costs difficult to compress. Therefore, how to improve the transportation economy of the single pile is an important problem to be solved urgently. Offshore wind power in Europe has experience of single-pile wet towing and floating transportation, and project attempts are made in China. Although some practical applications exist, the technology of single-pile floating transportation, especially the research of plugging devices, needs further improvement, improves the operation convenience and reduces the cost.

The present patent application provides a plugging device for floating transportation of large-diameter steel piles on the sea on the background.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to overcome the above disadvantages of the prior art, and to provide a plugging device for floating transportation of large diameter steel piles on the sea.

The utility model discloses a realize by following technical scheme:

a plugging device for floating transportation of a large-diameter offshore steel pile is characterized by comprising a guide block, a lining ring, a sealing device, a buoy, a clamping fixture, a torsion-limiting buoyancy tank and a control module;

the guide block is a steel fixture block with an inclination at the front end and is arranged at the front end of the buoy;

the lining rings are circular rings which are manufactured by welding, and 3 sets of buoy lining rings are sequentially arranged outside the buoy at equal intervals;

the sealing device is a hollow inflatable circular integrated adhesive tape, the sealing device is arranged at the groove of the lining ring gap, and the inside of the sealing device is tightly attached to the outside of the buoy;

the floating cylinder is a cylindrical structure cylinder which is made by rolling a steel plate and is internally provided with a subdivision and can float automatically, the front end of the floating cylinder is provided with a connecting flange seat meeting the installation requirement of the guide block, the outer edge of the rear end of the floating cylinder is provided with a connecting flange seat meeting the installation requirement of the clamping fixture, two sides of the end part of the floating cylinder are respectively provided with a connecting flange seat meeting the installation requirement of the torque limiting floating box, and the center of the floating cylinder is provided with a watertight cabin meeting the installation requirement of the control module;

the clamping fixture is a hook-type structural frame with a clamping groove, a flange is arranged at the end part of the clamping fixture, a fixed fixture block is arranged at the upper part of a middle groove of the clamping fixture, a jacking device with elastic jacking hydraulic retraction is arranged at the lower part of the clamping fixture, and a movable fixture block is arranged at the front end of the clamping fixture;

the torsion limiting buoyancy tanks are box-shaped metal structural members, and the two torsion limiting buoyancy tanks are respectively arranged on two sides of the end part of the buoy;

the control module is a module whole body sleeved with hydraulic power, aerodynamic power and a corresponding control valve group system, and the control module is installed inside the center of the buoy.

The utility model has the advantages that:

the utility model discloses a plugging device for the floating transportation of a large-diameter steel pile on the sea, which adopts a column-shaped bottle plug-shaped structure to plug the inside of the steel pile, realizes the fixed clamping with the end wall of the steel pile through a hydraulic power clamp, and can not be separated from the end part of the steel pile under the unexpected condition; two sets of sealing devices are arranged in the annular direction in which the plugging devices are in contact with the interior of the steel pile, the end part of the steel pile is sealed by injecting gas and pressurizing through equipment, and the steel pile and the plugging devices at the front end of the steel pile form a watertight buoy together, so that the offshore floating transportation requirement is met; the floating boxes which are symmetrically arranged left and right are arranged at the rear end of the plugging device, so that the steel piles can be prevented from being twisted in water during transportation; the sealing device through gas injection has better adaptability of filling joints, can adapt to the roundness deformation of the steel pile, and is reliable in sealing; the control module can realize remote operation, the releasing operation is simple, and the release can be realized quickly; the whole set of plugging device is simple in structure, convenient to install and operate, capable of effectively plugging external seawater and preventing the seawater from entering the steel pile, good in installation adaptability, simple and convenient to manufacture, good in economical efficiency and remarkable in popularization and application value.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the preferred embodiment of the present invention;

fig. 2 is a schematic diagram of the plugging device according to the preferred embodiment of the present invention.

The parts in the drawings are numbered as follows: 1. steel piles; 2. a plugging device; 2.1, a guide block; 2.2, lining rings; 2.3, sealing the device; 2.4, a buoy; 2.5, clamping the fixture; 2.6, a torsion-limiting buoyancy tank; 2.7, a control module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the plugging device for floating transportation of the offshore large-diameter steel pile is characterized by comprising a guide block 2.1, a lining ring 2.2, a sealing device 2.3, a buoy 2.4, a clamping fixture 2.5, a torque-limiting buoyancy tank 2.6 and a control module 2.7; the guide block 2.1 is a steel fixture block with an inclination at the front end, the guide block 2.1 is arranged at the front end of the buoy 2.4, and the guide block 2.1 has a certain taper to be beneficial to wedging the whole plugging device 2 into the steel pile 1; the lining ring 2.2 is a circular ring manufactured by welding, and 3 sets of buoy lining rings 2.2 are sequentially arranged outside the buoy 2.4 at equal intervals; the sealing device 2.3 is a hollow inflatable circular integrated rubber strip, the sealing device 2.3 is arranged at the groove of the gap of the lining ring 2.2, the inside of the sealing device 2.3 is tightly attached to the outside of the buoy 2.4, and the sealing device 2.3 is tightly attached to the inner wall of the steel pile 1 by controlling the control module 2.7 to inject gas and pressurize, so that reliable sealing is formed; the buoy 2.4 is a cylindrical structure cylinder which is rolled by a steel plate and is internally provided with a subdivision and can float automatically, the front end of the buoy 2.4 is provided with a connecting flange seat which meets the installation requirement of a guide block 2.1, the outer edge of the rear end of the buoy 2.4 is provided with a connecting flange seat which meets the installation requirement of a clamping fixture 2.5, two sides of the end part of the buoy 2.4 are respectively provided with a connecting flange seat which meets the installation requirement of a torque-limiting buoyancy tank 2.6, and the center of the buoy 2.4 is provided with a watertight cabin which meets the installation requirement of a control module 2.7; the clamping fixture 2.5 is a hook-type structural frame with a clamping groove, a flange is arranged at the end part of the clamping fixture 2.5, a fixed fixture block is arranged at the upper part of a middle groove of the clamping fixture 2.5, a jacking device with elastic jacking hydraulic retraction is arranged at the lower part of the clamping fixture 2.5, and a movable fixture block is arranged at the front end of the clamping fixture 2.5; when the plugging device 2 is integrally plugged into the steel pile 1, the end part of the steel pile 1 is clamped through the clamping groove to realize positioning and limiting; the jacking device retracts through hydraulic pressurization of the control module 2.7, so that the middle groove of the clamping fixture 2.5 can be clamped to the end part of the steel pile 1 conveniently; after pressure relief, the movable clamping block extends out and is tightly propped against the inner wall of the steel pile 1 under the action of the spring, and the movable clamping block and the fixed clamping block at the corresponding position outside realize tight clamping of the steel pile 1 together, so that the plugging device 2 is limited from dropping out and twisting around the inside of the steel pile 1, and the transportation safety of the steel pile 1 is ensured; the torsion limiting buoyancy tanks 2.6 are box-shaped metal structural members, and the two torsion limiting buoyancy tanks 2.6 are respectively arranged at two sides of the end part of the buoyancy tank 2.4; the torsion limiting buoyancy tank 2.6 provides a limiting torque for preventing the steel pile 1 from torsion through the buoyancy of the torsion limiting buoyancy tank, so that the steel pile 1 is ensured to be stably transported; the control module 2.7 is a module whole body sleeved with hydraulic power, air power and a corresponding control valve group system, and the control module 2.7 is arranged in the center of the buoy 2.4; the control module 2.7 is provided with an external control umbilical cable, the operations of pressure and discharge loading of the buoy 2.4, clamping and loosening of the clamping fixture 2.5, pressurization, tensioning, sealing, pressure release, deblocking and the like of the sealing device 2.3 are realized through a valve of a remote operation system, the water inlet condition, the underwater posture of the steel pile 1 and the like are monitored, a real-time signal is transmitted to the outside, and the safety condition of the steel pile 1 is monitored in real time in the transportation process.

The utility model discloses the construction step is as follows:

transporting the plugging device 2 without the torque-limiting buoyancy tank 2.6 to a use site, cleaning the inner wall of the bottom end part of the steel pile 1, hoisting the plugging device 2 to slowly sleeve the end part of the steel pile 1, pushing the plugging device 2 into the pile barrel until the clamping fixture 2.5 clamps the end part of the steel pile 1;

operating the control module 2.7 to clamp the end part of the steel pile 1 by the clamping fixture 2.5, installing the torque-limiting buoyancy tank 2.6 to finish the installation of the plugging device 2, and installing the plugging device 2 at the other end of the steel pile 1 by the same steps to realize the watertight performance of the whole set of the steel pile 1;

leading out an umbilical cable of the control module 2.7, lifting the steel pile 1 into water in a matching manner, adopting two tugboats to carry out front-back traction and towing, connecting the umbilical cable to a control chamber on a deck of the tail tugboat, connecting the front tugboat with a lifting point of the steel pile 1 to carry out towing, and limiting the whole swing of the steel pile 1 by the tail tugboat;

after the steel pile 1 is dragged by the tug boat and transported to a construction site, the steel pile 1 is integrally berthed on the side of a constructed floating crane ship, a floating crane is hung and buckled on a hoisting point at the upper end of the steel pile 1, a hoisting arm is slowly lifted, meanwhile, a control module 2.7 is controlled to operate a piping valve inside the steel pile 1 to open, water enters the inside of the steel pile 1, the sinking of the tail part is realized, and the steel pile 1 is favorable for turning over and standing;

the steel pile 1 is turned over, the sealing device 2.3 and the clamping fixture 2.5 are sequentially unsealed, so that the plugging device 2 is separated from the end part of the steel pile 1, the plugging device 2 integrally floats on the water surface by the aid of the buoy 2.4, the plugging device is recovered by a crane of a tug, and floating transportation is completed.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims (1)

1. A plugging device for floating transportation of a large-diameter offshore steel pile is characterized by comprising a guide block (2.1), a lining ring (2.2), a sealing device (2.3), a buoy (2.4), a clamping fixture (2.5), a torque-limiting buoyancy tank (2.6) and a control module (2.7);

the guide block (2.1) is a steel fixture block with an inclination at the front end and is arranged at the front end of the buoy (2.4);

the lining rings (2.2) are circular rings which are manufactured by welding, and 3 sets of buoy lining rings (2.2) are sequentially arranged on the outer part of the buoy (2.4) at equal intervals;

the sealing device (2.3) is a hollow inflatable circular integrated rubber strip, the sealing device (2.3) is arranged at the groove of the gap of the lining ring (2.2), and the inside of the sealing device (2.3) is tightly attached to the outside of the buoy (2.4);

the floating cylinder (2.4) is a cylindrical structure cylinder which is made by rolling a steel plate and is internally provided with a subdivision and can float automatically, a connecting flange seat meeting the installation of the guide block (2.1) is arranged at the front end of the floating cylinder (2.4), a connecting flange seat meeting the installation of the clamping fixture (2.5) is arranged at the outer edge of the rear end of the floating cylinder (2.4), connecting flange seats meeting the installation of the torque limiting floating box (2.6) are respectively arranged at two sides of the end part of the floating cylinder (2.4), and a watertight cabin meeting the installation of the control module (2.7) is arranged in the center of the floating cylinder (2.4);

the clamping fixture (2.5) is a hook-type structural frame with a clamping groove, a flange is arranged at the end part of the clamping fixture (2.5), a fixed fixture block is arranged at the upper part of a middle groove of the clamping fixture (2.5), a jacking device with elastic jacking and hydraulic retraction is arranged at the lower part of the clamping fixture (2.5), and a movable fixture block is arranged at the front end of the clamping fixture (2.5);

the torsion limiting buoyancy tanks (2.6) are box-shaped metal structural members, and the two sets of torsion limiting buoyancy tanks (2.6) are respectively arranged on two sides of the end part of the buoy (2.4);

the control module (2.7) is a module whole body which is sleeved with hydraulic power, aerodynamic power and a corresponding control valve group system, and the control module (2.7) is arranged in the center of the floating cylinder (2.4).

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