Hoisting and overturning device for replacing electric slip ring of FPSO (floating production storage and offloading) oil tanker

Abstract

The utility model discloses a hoisting turnover device for replacing an electric slip ring of an FPSO (floating production storage and offloading) oil tanker, which comprises a cross rod, a lifting lug is arranged in the center of the top of the cross rod, and the lifting lug is connected with a steel wire rope through a hoisting pin shaft; the two sides of the bottom of the transverse rod are connected with overturning lugs, and the overturning lugs are connected with the electric slip ring lifting lugs through overturning pin shafts. By adopting the hoisting and overturning device, the electric slip ring can be stably hoisted and overturned without large displacement, and the hoisting and overturning device adopts the nuts for installation and connection, and has the characteristics of convenience in installation, detachability, reliable structure, low construction difficulty, high efficiency and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of marine petroleum FPSO tanker maintenance, in particular to a hoisting and flipping device for replacing an electric slip ring of an FPSO tanker. Background Art

[0002] The electric slip ring equipment of the offshore oil FPSO tanker was damaged during offshore operations, causing the platform to be unable to produce normally. Time was tight and it needed to be removed and returned to the factory for repair in time. The electric slip ring is made of stainless steel, and the lifting ears of the main body are easily damaged when it is hoisted using conventional lifting slings, which cannot meet the hoisting conditions. In addition, due to the limited space and size of the hatch exit, it cannot be removed in the conventional way, and it is necessary to consider changing the removal method of the electric slip ring. Therefore, it is of great significance to design a hoisting and flipping device for the electric slip ring. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a hoisting and flipping device for replacing the electric slip ring of an FPSO oil tanker.

[0004] The utility model is realized by adopting the following technical solutions.

[0005] A lifting and flipping device for replacing an electric slip ring of an FPSO tanker comprises a cross bar, a lifting lug is arranged at the top center of the cross bar, and the lifting lug is connected to a steel wire rope through a lifting pin; flipping lugs are connected to both sides of the bottom of the cross bar, and the flipping lugs are connected to the electric slip ring lifting lugs through a flipping pin.

[0006] Furthermore, the cross bar includes an "H"-shaped main body, and a plurality of reinforcing ribs are arranged inside the main body, and the positions of the reinforcing ribs correspond to the lifting ears and the flip ears.

[0007] Furthermore, a plurality of sealing plates are arranged on the outer side of the main body.

[0008] Furthermore, the flip ear includes two main boards arranged in parallel, and two sides of the two main boards are connected by a rib plate.

[0009] Furthermore, a rib plate is provided between the inner main board and the bottom surface of the crossbar.

[0010] Furthermore, the lifting lug comprises two lifting lug plates arranged in parallel, and a support plate is provided between the outer side surfaces of the lifting lug plates and the top surface of the cross bar.

[0011] Furthermore, the structures of the lifting pin and the flip pin are the same.

[0012] Furthermore, the lifting pin includes a bolt passing through the lifting ear plate and a nut for tightening the bolt.

[0013] Furthermore, a limiting gasket is provided on the inner side of the flip ear.

[0014] The utility model achieves the following beneficial effects.

[0015] The original electric slip ring adopts the three-point tethering method, and now the flip sling is used to change the slip ring hoisting form to a two-point hoisting form. Since the flip sling is used for hoisting, the hoisting rope distance can be shortened, which provides a favorable distance advantage for exiting the cabin. However, simply shortening the distance is still not enough to meet the space for the electric slip ring to exit the cabin. In order to exit the cabin smoothly, this device can be used to flip it in the air at a certain angle at the exit to remove it. The utility model is very practical for the replacement and reinstallation of the electric slip ring of FPSO in the future, and can be repeatedly used for the replacement of such equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a front view of the flip ear of the utility model;

[0018] Figure 3 It is a side view of the flip ear of the utility model;

[0019] Figure 4 This is a front view of the lifting ear of the utility model;

[0020] Figure 5 It is a side view of the lifting lug of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the lifting pin shaft of the utility model.

[0022] Among them: 1. cross bar; 11. main body; 12. cover plate; 13. reinforcing rib plate; 2. flip ear; 21. main board; 22. rib plate; 3. lifting ear; 31. lifting ear plate; 32. support plate; 4. lifting pin; 41. bolt; 42. nut; 5. flip pin; 6. limit gasket; 7. electric slip ring lifting ear. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below through specific implementation methods.

[0024] like Figure 1-6 As shown, a lifting and flipping device for replacing the electric slip ring of an FPSO tanker mainly includes five parts: a cross bar 1, a lifting ear 3, a flip ear 2, a pin shaft, and a limit gasket 6.

[0025] The cross bar 1 is parallel to the top of the electric slip ring and includes a main body 11. The main body 11 is made of an H-shaped steel. Twelve reinforcing rib plates 13 are added on both sides of the middle of the steel corresponding to the lifting ears 3 and the flip ears 2. In addition, 10 sealing plates 12 are arranged at the outer edge of the steel to make the cross bar 1 into a box-type structure.

[0026] The lifting lug 3 is located at the middle of the top of the crossbar 1. The lifting lug 3 includes two parallel and symmetrically arranged lifting lug plates 31. The bottom of the lifting lug plates 31 is connected to the center of the top of the crossbar 1. The outer side of each lifting lug plate 31 is connected to two support plates 32 to enhance the connection strength between the two and prevent the steel wire rope from being damaged by lateral stretching during the lifting and flipping process. The lifting lug plate 31 is formed with a lifting lug hole, and the lifting pin 4 is inserted into the lifting lug hole and the steel wire rope, so as to connect the device with the steel wire rope.

[0027] The flip ears 2 are located at both sides of the bottom of the crossbar 1. Each flip ear 2 includes two main boards 21. The top of the main board 21 is fixed at one end of the bottom of the crossbar 1. The two sides of the two main boards 21 are connected by rectangular ribs 22 to prevent the main boards 21 from being too long and deforming laterally. A triangular or trapezoidal rib 22 is provided between the main board 21 located on the inner side and the bottom surface of the crossbar 1 to enhance the strength of the flip ears 2 and the connection strength between the two, and to prevent the electric slip ring from sliding and damaging during the hoisting and flipping process. A flip ear hole is formed at the lower part of the main board 21. The flip pin 5 is inserted into the flip ear hole and the ear hole of the electric slip ring ear 7, thereby realizing the connection between the device and the electric slip ring.

[0028] The lifting pin 4 and the lifting pin 5 have the same structure but different specifications. The lifting pin 4 is used to fix the wire rope to reduce the connection length of the wire rope; the lifting pin 5 is used to connect the two lifting ears on the top of the electric slip ring to perform a flipping operation when the electric slip ring is out of the warehouse, thereby reducing the height of the electric slip ring out of the warehouse and making it out smoothly. Taking the structure of the lifting pin 4 as an example, the lifting pin 4 includes a bolt 41 and a nut 42 sleeved on the bolt 41.

[0029] The limiting gasket 6 is located on the inner side of the flip ear 2, specifically between the main board 21 and the electric slip ring lifting ear 7, and is used to fill the gap between the electric slip ring lifting ear 7 and the flip ear 2 to prevent the electric slip ring from sliding sideways during the lifting and flipping process, causing damage, thereby ensuring the safety of the electric slip ring.

[0030] By adopting the hoisting and flipping device of the utility model, the electric slip ring can be stably installed and flipped without large displacement during the electric slip ring hoisting and flipping process, and the device adopts nuts for installation and connection, and has the characteristics of easy installation, detachability, reliable structure, low construction difficulty, high efficiency and low cost.

[0031] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A hoisting and flipping device for replacing the electric slip ring of an FPSO tanker, characterized in that: The invention comprises a cross bar (1), wherein a lifting ear (3) is arranged at the center of the top of the cross bar (1), and the lifting ear (3) is connected to a steel wire rope via a lifting pin (4); and flip ears (2) are connected to both sides of the bottom of the cross bar (1), and the flip ears (2) are connected to an electric slip ring lifting ear (7) via a flip pin (5).

2. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 1 is characterized in that: The crossbar (1) comprises an "H"-shaped main body (11), and a plurality of reinforcing ribs (13) are arranged inside the main body (11). The arrangement positions of the reinforcing ribs (13) correspond to the lifting ears (3) and the turning ears (2).

3. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 2 is characterized in that: A plurality of sealing plates (12) are arranged on the outer side of the main body (11).

4. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 1 is characterized in that: The flip ear (2) comprises two main boards (21) arranged in parallel, and the two sides of the two main boards (21) are connected by a rib plate (22).

5. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 4, characterized in that: A rib plate (22) is provided between the main plate (21) disposed on the inner side and the bottom surface of the crossbar (1).

6. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 1, characterized in that: The lifting lug (3) comprises two lifting lug plates (31) arranged in parallel, and a support plate (32) is provided between the outer side surfaces of the lifting lug plates (31) and the top surface of the crossbar (1).

7. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 1, characterized in that: The structures of the hanging pin shaft (4) and the turning pin shaft (5) are the same.

8. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 1, characterized in that: The hanging pin shaft (4) comprises a bolt (41) which is passed through the hanging ear plate (31) and a nut (42) which is used to tighten the bolt (41).

9. The hoisting and turning device for replacing the electric slip ring of an FPSO tanker according to claim 1, characterized in that: A limiting gasket (6) is provided on the inner side of the flip ear (2).

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