CN108999975B - Sealing pile plug device for floating transportation of offshore fan steel piles - Google Patents

Abstract

A sealing pile plug device for floating transportation of an offshore wind turbine steel pile belongs to the technical field of marine equipment installation. The device mainly comprises a main body structure, a sealing rubber ring, a hydraulic loading device and a limiting device. The main structure is a hollow cylinder structure with an inner cover plate and an outer cover plate, and a sealing rubber ring and a hydraulic loading device are sequentially arranged between the inner cover plate and the outer cover plate. After the pile plug device is installed in the steel pipe pile, the hydraulic loading device is started to ballast the sealing rubber ring, so that the sealing rubber ring generates elastic deformation, and is pressed against the contact surface of the steel pipe pile to achieve the sealing effect. The device is used for floating towing transportation of the single offshore wind turbine steel pipe pile, so that the transportation of the offshore wind turbine steel pipe pile is more economic. At present, the steel pipe piles of the offshore wind turbine are transported by a barge usually, the barge is expensive in rent, and the device can be matched with the steel pipe piles, so that the steel pipe piles float on the sea surface by means of self buoyancy, and are easy to install and disassemble, and the final purpose of reducing the transportation cost of single piles in the installation process of the offshore wind turbine is achieved.

Description

A sealed pile stopper for floating transportation of offshore wind turbine steel piles

technical field

The patent of the present invention relates to a sealed pile plug device for floating transportation of steel piles of offshore fans, which belongs to the auxiliary equipment on board in the equipment related to ships, and belongs to the technical field of marine equipment installation; it is mainly used for floating of single piles of steel pipe foundations of fans Transportation, suitable for single-pile foundation, three-pile foundation or multi-pile foundation of offshore wind turbines, when the steel pipe piles are transferred from the shore foundation to the installation site for single-pile floating tow transportation.

Background technique

Offshore wind turbines are mechanical devices that utilize offshore wind resources to generate electricity. With the increasingly tense situation of oil resources, all coastal countries have turned their attention to the field of offshore wind power with great potential. At present, developed countries in the world have established many offshore wind power plants, and China has gradually increased its investment in the construction of offshore wind farms in recent years. The main equipment of the offshore wind farm is the offshore wind turbine, which converts wind energy into mechanical energy through huge blades, drives the rotor of the generator to rotate, and finally outputs alternating current. The onshore wind turbine tower column is fixed on the ground foundation, the ground foundation construction is relatively easy, and the quality is easy to guarantee, but in the marine environment, the fixed foundation needs to be provided by a cylindrical pile foundation inserted into the seabed. During the construction of offshore wind farms, the monopile foundations are usually transported to the installation site by berthing boats after being processed in onshore factories. Due to the limited carrying capacity of the berthing boats, the number of pile foundations consigned in a single transportation is small. One mode of transportation is towing, which is to seal both sides of the hollow monopile, so that the monopile floats on the sea surface, and then connect multiple piles to be towed to the installation site by mooring. Offshore wind power pile foundations are usually made of large-diameter steel cylinders. During the towing process, both sides of the cylinder body need to be sealed with pile plugs to prevent seawater from entering the pile foundation, so that the pile foundation has a certain buoyancy and ensures the safety of the pile foundation. tow.

SUMMARY OF THE INVENTION

The purpose of the patent of the present invention is to provide a sealing device at both ends of the fan steel pipe pile, which is used for the floating towage transportation of the single pile of the offshore fan steel pipe pile, thereby making the transportation of the offshore fan steel pipe pile more economical. At present, the transportation of steel pipe piles for offshore wind turbines is usually carried out by barges, and the rental of the barges is relatively expensive. However, this device can cooperate with the steel pipe piles, so that the steel pipe piles float on the sea surface by their own buoyancy, and are easy to install and disassemble, so as to achieve The ultimate goal of reducing monopile transportation costs during offshore wind turbine installation.

The technical scheme adopted in the present invention is: a sealed pile plug device for floating transportation of steel piles of offshore wind turbines, which includes a main structure, a rubber sealing ring, a hydraulic loading device and a limit device; the main structure includes an outer cover plate, The cylindrical structure, the inner cover, the lifting lugs, the guide structure and the supporting structure; the outer cover and the cylindrical structure are welded, the cylindrical structure and the inner cover are riveted with bolts, and the lifting ears are welded on the outer cover to play a guiding role and The guiding structure for strengthening the inner cover plate is arranged below the inner cover plate, and the support structure is welded on the inner cover plate, and a sealing rubber ring and a hydraulic loading device are arranged between the inner cover plate and the outer cover plate; the hydraulic loading device It includes a loading hydraulic cylinder and a metal washer, one end of the loading hydraulic cylinder is connected with the inner cover plate through bolts, the other end of the loading hydraulic cylinder is connected with a metal washer, and the metal washer is in contact with the sealing rubber ring; The limit hydraulic cylinder, the limit claw, and the limit claw fixing seat, the limit hydraulic cylinder is connected with the hydraulic cylinder connecting piece through the first connecting pin, the limit hydraulic cylinder is connected with the limit claw through the second connecting pin, and the hydraulic oil cylinder is connected The parts are connected with the main structure by welding, the limit claw is connected with the limit claw fixing seat through the connecting pin shaft, and the limit claw fixing seat is welded to the inner cover plate.

The sealing rubber ring is a rubber ring with a rectangular section, and rounded corners are designed on the rectangular section.

The beneficial effects of the present invention are as follows: the device mainly includes a main body structure, a sealing rubber ring, a hydraulic loading device and a limiting device. The main structure is a hollow cylinder structure with inner and outer cover plates, and a sealing rubber ring and a hydraulic loading device are arranged in sequence between the inner and outer cover plates. After the pile stopper is installed into the steel pipe pile, the hydraulic loading device is activated to generate ballast on the sealing rubber ring, causing it to elastically deform, so as to press the contact surface of the steel pipe pile to achieve the sealing effect. The device is used for the floating tow transportation of the single pile of the offshore wind turbine steel pipe pile, thereby making the transportation of the offshore wind turbine steel pipe pile more economical. At present, the transportation of steel pipe piles for offshore wind turbines is usually carried out by barges, and the rental of the barges is relatively expensive. However, this device can cooperate with the steel pipe piles, so that the steel pipe piles float on the sea surface by their own buoyancy, and are easy to install and disassemble, so as to achieve The ultimate goal of reducing monopile transportation costs during offshore wind turbine installation.

Description of drawings

Figure 1 is a structural diagram of a sealed pile stopper used for floating transportation of steel piles for offshore wind turbines.

FIG. 2 is a configuration diagram of a main body structure.

Fig. 3 is a cross-sectional view of the sealing rubber ring.

Fig. 4 is a block diagram of a hydraulic loading device.

FIG. 5 is a structural diagram of the limiting device.

In the figure: 1. Main structure, 2. Rubber sealing ring, 3. Hydraulic loading device, 4. Limiting device, 5. Outer cover, 6. Inner cover, 7. Cylindrical structure, 8. Guide structure, 9 , Support structure, 10, Lifting lug, 11, Loading hydraulic cylinder, 12, Metal washer, 13, Hydraulic cylinder connector, 14, First connecting pin, 15, Limit hydraulic cylinder, 16, Limit claw, 17, Limiting claw fixing seat, 18. The second connecting pin.

Detailed ways

Figures 1-5 show that the device is mainly composed of the following parts: main structure 1, sealing rubber ring 2, hydraulic loading device 3 and limit device 4, as shown in Figure 1. The main structure 1 is a hollow cylindrical structure with inner and outer cover plates. Between the inner and outer cover plates, a sealing rubber ring 2 and a hydraulic loading device 3 are arranged in sequence. The hydraulic loading device 3 is connected with the main structure 1 by bolts, and the limit device 4 is connected with the main body Structure 1 is welded. After the pile stopper is installed into the steel pipe pile, the hydraulic loading device 3 is activated to generate a ballast on the sealing rubber ring 2, causing it to elastically deform, thereby compressing the contact surface of the steel pipe pile to achieve a sealing effect.

The main structure is mainly composed of the following parts: an outer cover plate 5 , a cylindrical structure 7 , an inner cover plate 6 , a lifting lug 10 , a guide structure 8 , and a support structure 9 , as shown in FIG. 2 . The outer cover plate 5 and the cylindrical structure 7 are welded, the cylindrical structure 7 and the inner cover plate 6 are riveted with bolts, the lifting lugs 10 are welded on the outer cover plate 5, and the guiding structure 8 plays both a guiding role during installation and an inward facing The structure of the cover plate 6 is strengthened, and the support structure 9 is welded on the inner cover plate 6 .

The sealing rubber ring 2 is a rubber ring with a rectangular section. In order to make the contact stress more uniform, a rounded corner design is carried out on the basis of the rectangular section, as shown in Figure 3.

The hydraulic loading device 3 is mainly composed of the following parts: a loading hydraulic cylinder 11 and a metal washer 12 , as shown in FIG. 4 . One end of the hydraulic loading cylinder 11 is connected to the main body structure 1 by bolts, and the other end is connected to the metal washer 12 , which is in contact with the sealing rubber ring 2 .

The limit device is mainly composed of the following parts: hydraulic cylinder connecting piece 13, first connecting pin 14, limit hydraulic cylinder 15, limit claw 16, limit claw fixing seat 17 and second connecting pin 18, as shown in the figure 5 shown. The two ends of the limit hydraulic cylinder 15 are respectively connected with the hydraulic cylinder connecting piece 13 and the limit claw 16 through the connecting pin. The positioning claw fixing seat 17 is connected, and the limiting claw fixing seat 17 is connected with the main structure 1 by welding. The function of the limiting device is realized by extending and retracting the limiting hydraulic cylinder 15 so that the limiting claw 16 contacts the inner wall of the steel pipe pile.

Claims (2)

1. The utility model provides a sealed stake stopper ware that is used for marine fan piling bar to float transportation which characterized in that: the hydraulic loading device comprises a main body structure (1), a rubber sealing ring (2), a hydraulic loading device (3) and a limiting device (4); the main body structure comprises an outer cover plate (5), a cylindrical structure (7), an inner cover plate (6), lifting lugs (10), a guide structure (8), a support structure (9) and supporting legs; the outer cover plate (5) is welded with the cylindrical structure (7), the cylindrical structure (7) is riveted with the inner cover plate (6) through bolts, the lifting lugs (10) are welded on the outer cover plate (5), the guide structure (8) which plays a role in guiding and reinforcing the inner cover plate is arranged below the inner cover plate (6), and the support structure (9) is welded on the inner cover plate (6), and the sealing rubber ring (2) and the hydraulic loading device (3) are arranged between the inner cover plate (6) and the outer cover plate (5); the hydraulic loading device (3) comprises a loading hydraulic cylinder (11) and a metal gasket (12), one end of the loading hydraulic cylinder (11) is connected with the inner cover plate (6) through a bolt, the other end of the loading hydraulic cylinder (11) is connected with the metal gasket (12), and the metal gasket (12) is in contact with the sealing rubber ring (2); the limiting device comprises a hydraulic oil cylinder connecting piece (13), a limiting hydraulic cylinder (15), a limiting claw (16) and a limiting claw fixing seat (17), wherein the limiting hydraulic cylinder (15) is connected with the hydraulic oil cylinder connecting piece (13) through a first connecting pin shaft (14), the limiting hydraulic cylinder (15) is connected with the limiting claw (16) through a second connecting pin shaft (18), the hydraulic oil cylinder connecting piece (13) is connected with a supporting leg of the main structure (1) in a welding mode, the limiting claw (16) is connected with the limiting claw fixing seat (17) through a connecting pin shaft, and the limiting claw fixing seat (17) is welded on the inner cover plate (6).

2. The sealing pile plug device for floating transportation of the offshore wind turbine steel pile according to claim 1, characterized in that: the sealing rubber ring (2) is a rubber ring with a rectangular cross section, and a fillet is designed on the rectangular cross section.

Images