FPSO broadside seawater lift pump pipe anti-collision protection structure

Abstract

The invention discloses an FPSO broadside seawater lift pump pipe anti-collision protection structure which comprises a ship body, a mounting plate is fixedly mounted on one side of the ship body, a sliding groove is formed in the mounting plate, a sliding plate is slidably mounted in the sliding groove, and through arrangement of an anti-collision plate and a rubber pad, a supply ship can be blocked; through the arrangement of a trigger assembly and a transmission assembly, when an anti-collision plate is destroyed, the supply ship continues to collide to the ship body and drives the trigger plate to move towards the ship body, so that a sliding plate moves, the upper lifting pipe is driven to move upwards, and the lower lifting pipe is driven to move downwards; the upper lifting pipe and the lower lifting pipe are separated from the broadside of the FPSO, the collision position of the supply ship and the FPSO is usually located on the broadside of the ship body, in this way, when the trigger plate collides with the ship body, the upper lifting pipe and the lower lifting pipe cannot be damaged, and therefore the protection effect on the seawater lifting pump pipe is better.

Description

Technical Field

[0001] The invention relates to the technical field of offshore FPSO design, and in particular to an anti-collision protection structure for seawater lifting pump pipes on the side of an FPSO. Background Art

[0002] FPSO, or floating production storage and offloading vessel, is a key facility for offshore oil development. It is mainly used for the exploitation, processing, storage and transportation of offshore oil, natural gas and other energy sources. Since its development in 1977, FPSO technology has become the mainstream method of offshore oil development in the world. Seawater riser is an indispensable and important part of FPSO, responsible for the cooling water supply of the modules built on it.

[0003] FPSO seawater lifting pump pipes can be divided into two categories according to the installation position: external and internal. The external seawater lifting pipe is installed outside the ship, which has the advantages of simple layout and easy installation, but the disadvantages are also very obvious, and its pipe fittings lack external protection.

[0004] When an FPSO equipped with an external seawater lifting pump pipe operates in an offshore oil and gas field for a long time, it often needs to be supplied with materials. When the supply ship berths at the FPSO, it may collide with the seawater lifting pump pipe on the side, causing damage to the seawater lifting pump pipe structure and affecting the overall operation process of the FPSO. Some existing FPSO side seawater lifting pump pipe anti-collision protection structures have a relatively simple protection structure when performing anti-collision protection on the lifting pump pipe. In case of collision, the protection structure can only provide preliminary protection for the lifting pump pipe. When the supply ship is at a high speed and the collision force is large, the protection structure will be directly destroyed. The supply ship will continue to collide with the hull, which will still cause damage to the lifting pump pipe, resulting in poor protection effect on the seawater lifting pump pipe. Therefore, an FPSO side seawater lifting pump pipe anti-collision protection structure is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an anti-collision protection structure for the seawater lifting pump pipe on the side of an FPSO, which solves the problem that when the collision force is small, the protection structure is damaged and the entire protection structure needs to be disassembled and replaced, which easily causes a waste of resources; and when the collision force is large, not only the protection structure is damaged, but the lifting pump pipe is also damaged, resulting in poor protection effect on the seawater lifting pump pipe.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A FPSO side seawater lifting pump pipe anti-collision protection structure comprises a hull, a mounting plate is fixedly installed on one side of the hull, a slide groove is provided inside the mounting plate, a slide plate is slidably installed inside the slide groove, an upper lifting pipe is fixedly installed on one side of the slide plate, and the mounting plate is provided with an upper and lower sections, wherein the upper lifting pipe is located on the surface of the upper mounting plate, and the surface of the lower mounting plate is provided with a lower lifting pipe, a trigger assembly and a transmission assembly are provided on the surface of the hull, a support plate is fixedly installed on the surface of the hull, a fixing plate is fixedly installed on one end of the support plate, bolt fasteners are provided inside the fixing plate, an anti-collision plate is provided on the surface of the fixing plate, and a rubber pad is fixedly installed on the outer surface of the anti-collision plate.

[0007] Preferably, a limiting plate is fixedly mounted on the surface of the slide plate, and a limiting groove is provided inside the slide groove.

[0008] Preferably, a connecting pipe is fixedly mounted on the bottom surface of the upper riser, a connecting groove is formed on the top surface of the lower riser, and a sealing ring is disposed inside the connecting groove.

[0009] Preferably, a seawater lifting pump is fixedly installed on the bottom surface of the lower lifting pipe, and a telescopic hose is fixedly installed on the top surface of the upper lifting pipe.

[0010] Preferably, the trigger includes a fixed cylinder fixedly installed on the side of the hull, a spring fixedly installed inside the fixed cylinder, a lifting rod fixedly installed on one end of the spring, a trigger plate fixedly installed on the top of the lifting rod, a sponge block fixedly installed on the inner side of the trigger plate, a connecting block fixedly installed on the surface of the lifting rod, a connecting plate fixedly installed on the surface of the connecting block, and a second tooth plate fixedly installed on the surface of the connecting plate.

[0011] Preferably, the transmission assembly includes a fixing frame fixedly mounted on the surface of the hull, a first rotating shaft is rotatably mounted inside the fixing frame, a first gear is fixedly mounted on the surface of the first rotating shaft, a first sprocket is fixedly mounted on one end of the first rotating shaft, a chain is meshingly mounted on the surface of the first sprocket, and the second tooth plate is meshingly arranged with the first gear.

[0012] Preferably, a mounting frame is fixedly mounted on the top surface of the hull, a second rotating shaft is rotatably mounted on the surface of the mounting frame, a second sprocket is fixedly mounted on the surface of the second rotating shaft, a second gear is fixedly mounted on the surface of the second rotating shaft, and the second sprocket is meshed with the chain.

[0013] Preferably, a first tooth plate is fixedly mounted on one side of the slide plate, and the first tooth plate is meshed with the second gear.

[0014] Preferably, a reinforcing plate is fixedly mounted on the inner side of the fixing plate, and the reinforcing plates are provided in multiple groups.

[0015] Preferably, a mounting groove is provided inside the fixing plate, a plug plate is fixedly installed on the surface of the anti-collision plate, a through hole is provided on the surface of the plug plate, and the mounting groove and the plug plate are correspondingly arranged, and the through hole and the bolt fastener are correspondingly arranged.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The FPSO side seawater lifting pump pipe anti-collision protection structure can block the supply ship through the setting of anti-collision plates and rubber pads to prevent the supply ship from colliding with the seawater lifting pump pipe, and provide preliminary protection for the upper lifting pipe, lower lifting pipe and seawater lifting pump.

[0017] 2. The FPSO side seawater lifting pump pipe anti-collision protection structure can facilitate the replacement of the anti-collision plate through the setting of the installation groove and the plug plate. The anti-collision plate is fixed and installed by bolt fasteners, so that when the anti-collision plate is damaged, only the anti-collision plate needs to be replaced without replacing the entire protection structure, thereby reducing the waste of resources.

[0018] 3. The anti-collision protection structure for the seawater lifting pump pipe on the side of the FPSO is configured with a trigger component and a transmission component. When the anti-collision plate is destroyed, the supply ship continues to collide with the hull, driving the trigger plate to move toward the hull, causing the slide plate to move, driving the upper lifting pipe to move upward and the lower lifting pipe to move downward, so that the upper and lower lifting pipes leave the side of the FPSO. The collision point between the supply ship and the FPSO is usually on the side of the hull. In this way, when the trigger plate collides with the hull, it cannot cause damage to the upper and lower lifting pipes, thereby achieving a better protection effect on the seawater lifting pump pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the positive measurement of the present invention; Figure 2 It is a structural schematic diagram of the trigger component of the present invention; Figure 3 is a cross-sectional view of a riser of the present invention; Figure 4 is a cross-sectional view of a mounting plate of the present invention; Figure 5 It is a structural schematic diagram of the transmission assembly of the present invention; Figure 6 is a cross-sectional view of a fixed cylinder of the present invention; Figure 7 It is a structural schematic diagram of the fixing plate of the present invention; Figure 8 It is a structural schematic diagram of the anti-collision plate of the present invention.

[0020] In the figure: 1, hull; 2, mounting plate; 3, slide; 4, slide plate; 5, limit plate; 6, limit groove; 7, first tooth plate; 8, upper lifting pipe; 9, connecting pipe; 10, lower lifting pipe; 11, connecting groove; 12, sealing ring; 13, seawater lifting pump; 14, telescopic hose; 15, fixing cylinder; 16, spring; 17, lifting rod; 18, trigger plate; 19, sponge block; 20, connecting block; 21, connecting plate; 22, second tooth plate; 23, fixing frame; 24, first rotating shaft; 25, first gear; 26, first sprocket; 27, chain; 28, mounting frame; 29, second rotating shaft; 30, second sprocket; 31, second gear; 32, support plate; 33, fixing plate; 34, reinforcing plate; 35, mounting groove; 36, bolt fastener; 37, anti-collision plate; 38, plug plate; 39, through hole; 40, rubber pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] As introduced in the background technology, in order to solve the deficiencies existing in the prior art and the above technical problems, the present application proposes an anti-collision protection structure for the seawater lifting pump pipe on the side of FPSO.

[0023] Reference Figure 1-8A FPSO side seawater lifting pump pipe anti-collision protection structure includes a hull 1, a mounting plate 2 is fixedly installed on one side of the hull 1, a slide groove 3 is provided inside the mounting plate 2, a slide plate 4 is slidably installed inside the slide groove 3, a limit plate 5 is fixedly installed on the surface of the slide plate 4, a limit groove 6 is provided inside the slide groove 3, and the slide plate 4 can be limited by the setting of the limit plate 5 and the limit groove 6, so that the slide plate 4 is more stable when moving up and down, an upper lifting pipe 8 is fixedly installed on one side of the slide plate 4, and the mounting plate 2 is provided with an upper and lower section, wherein the upper lifting pipe 8 is located on the surface of the upper section mounting plate 2, and the surface of the lower section mounting plate 2 is provided with a lower lifting pipe 10, and the bottom surface of the upper lifting pipe 8 is fixedly installed There is a connecting pipe 9, and a connecting groove 11 is opened on the top surface of the lower lifting pipe 10. A sealing ring 12 is arranged inside the connecting groove 11. Through the arrangement of the connecting pipe 9 and the connecting groove 11, it is convenient to connect the upper lifting pipe 8 with the lower lifting pipe 10. Through the arrangement of the sealing ring 12, the sealing performance of the connection between the upper lifting pipe 8 and the lower lifting pipe 10 is increased to avoid seawater leakage during seawater lifting. A seawater lifting pump 13 is fixedly installed on the bottom surface of the lower lifting pipe 10, and a telescopic hose 14 is fixedly installed on the top surface of the upper lifting pipe 8. Through the arrangement of the telescopic hose 14, it is convenient to connect the upper lifting pipe 8 with the equipment in the hull 1, and at the same time, the upper lifting pipe 8 will not damage the pipeline when moving up and down.

[0024] Specifically, the surface of the hull 1 is provided with a trigger assembly and a transmission assembly, the trigger comprises a fixed cylinder 15 fixedly mounted on the side of the hull 1, a spring 16 is fixedly mounted inside the fixed cylinder 15, a lifting rod 17 is fixedly mounted on one end of the spring 16, a trigger plate 18 is fixedly mounted on the top of the lifting rod 17, a sponge block 19 is fixedly mounted on the inner side of the trigger plate 18, when the trigger plate 18 contacts the hull 1, the sponge block 19 contacts the hull 1 first, the sponge block 19 plays a certain buffering role, can protect the hull 1, and reduce the degree of damage to the hull 1, a connecting block 20 is fixedly mounted on the surface of the lifting rod 17, and a connecting block 20 is fixedly mounted on the surface of the connecting block 20 A connecting plate 21, a second tooth plate 22 is fixedly mounted on the surface of the connecting plate 21, a transmission assembly includes a fixing frame 23 fixedly mounted on the surface of the hull 1, a first rotating shaft 24 is rotatably mounted inside the fixing frame 23, a first gear 25 is fixedly mounted on the surface of the first rotating shaft 24, a first sprocket 26 is fixedly mounted on one end of the first rotating shaft 24, a chain 27 is meshingly mounted on the surface of the first sprocket 26, and the second tooth plate 22 is meshingly arranged with the first gear 25, a mounting frame 28 is fixedly mounted on the top surface of the hull 1, a second rotating shaft 29 is rotatably mounted on the surface of the mounting frame 28, a second sprocket 30 is fixedly mounted on the surface of the second rotating shaft 29, and the surface of the second rotating shaft 29 A second gear 31 is fixedly installed on the surface, and the second sprocket 30 is meshed with the chain 27. A first tooth plate 7 is fixedly installed on one side of the slide plate 4, and the first tooth plate 7 is meshed with the second gear 31. Through the setting of the trigger component and the transmission component, when the supply ship is fast and the collision force is large, the anti-collision plate 37 will be directly destroyed. The supply ship continues to collide with the hull 1. At this time, the trigger plate 18 is driven to move toward the hull 1, and the lifting rod 17 enters the inside of the fixed cylinder 15. The spring 16 is compressed, driving the connecting block 20 to move, so that the connecting plate 21 moves toward the hull 1, driving the second tooth plate 22 to move, and the second tooth plate 22 is meshed with the first gear 25, so that the first The gear 25 rotates, driving the first rotating shaft 24 to rotate, causing the first sprocket 26 to rotate. Under the action of the chain 27, the second sprocket 30 rotates, and then drives the second rotating shaft 29 to rotate, causing the second gear 31 to rotate. The second gear 31 is meshed with the first tooth plate 7, driving the first tooth plate 7 to move, and then drives the slide plate 4 to move, so that the upper riser 8 moves upward and the lower riser 10 moves downward, so that the upper riser 8 and the lower riser 10 leave the side of the FPSO. In this way, when the supply ship collides with the hull 1, the upper riser 8 is located above the side and the lower riser 10 is located below the side, thereby preventing the upper riser 8 and the lower riser 10 from being damaged.

[0025] Specifically, a support plate 32 is fixedly installed on the surface of the hull 1, a fixing plate 33 is fixedly installed on one end of the support plate 32, a bolt fastener 36 is arranged inside the fixing plate 33, an anti-collision plate 37 is arranged on the surface of the fixing plate 33, a rubber pad 40 is fixedly installed on the outer surface of the anti-collision plate 37, a reinforcing plate 34 is fixedly installed on the inner side of the fixing plate 33, and the reinforcing plate 34 is provided with multiple groups, a mounting groove 35 is opened inside the fixing plate 33, a plug plate 38 is fixedly installed on the surface of the anti-collision plate 37, a through hole 39 is opened on the surface of the plug plate 38, and the mounting groove 35 is arranged corresponding to the plug plate 38, and the through hole 39 is connected to the bolt fastener 36. The anti-collision plate 37 and the rubber pad 40 are arranged in a corresponding manner to block the supply ship and prevent the supply ship from colliding with the seawater lifting pump pipe, thereby providing preliminary protection for the upper lifting pipe 8, the lower lifting pipe 10 and the seawater lifting pump 13. The anti-collision plate 37 may be damaged after the collision. The bolt fastener 36 is rotated to move the bolt fastener 36 out of the through hole 39, the anti-collision plate 37 is taken upward, the anti-collision plate 37 is disassembled, and the plug plate 38 on the new anti-collision plate 37 is inserted into the installation groove 35, and the bolt fastener 36 is tightened to fix it. There is no need to replace the entire protective structure, thereby reducing the waste of resources.

[0026] When in use: When the supply ship berths at the FPSO equipped with an external seawater lifting pump pipe and is about to collide with the seawater lifting pump pipe on the side, the supply ship first contacts the surface of the anti-collision plate 37. The outer surface of the anti-collision plate 37 is provided with a rubber pad 40, which can play a certain buffering role. When the collision force is small, the anti-collision plate 37 and the rubber pad 40 can block the supply ship to prevent the supply ship from colliding with the seawater lifting pump pipe, and provide preliminary protection for the upper lifting pipe 8, the lower lifting pipe 10 and the seawater lifting pump 13. When the supply ship is fast and the collision force is large, the anti-collision plate 37 will be directly destroyed. 7. The supply ship continues to collide with the hull 1. At this time, the trigger plate 18 is driven to move toward the hull 1, the lifting rod 17 enters the interior of the fixing tube 15, the spring 16 is compressed, and the connecting block 20 is driven to move, so that the connecting plate 21 moves toward the hull 1. Under the action of the transmission component, the slide plate 4 is driven to move, so that the upper riser 8 moves upward and the lower riser 10 moves downward, so that the upper riser 8 and the lower riser 10 leave the side of the FPSO. The collision point between the supply ship and the FPSO is usually on the side of the hull 1. In this way, when the trigger plate 18 collides with the hull 1, it cannot cause damage to the upper riser 8 and the lower riser 10.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A FPSO side seawater lifting pump pipe anti-collision protection structure, comprising a hull (1), characterized in that: A mounting plate (2) is fixedly mounted on one side of the hull (1), a slide groove (3) is provided inside the mounting plate (2), a slide plate (4) is slidably mounted inside the slide groove (3), an upper lifting pipe (8) is fixedly mounted on one side of the slide plate (4), and the mounting plate (2) is provided with an upper and a lower section, wherein the upper lifting pipe (8) is located on the surface of the upper section mounting plate (2), and a lower lifting pipe (10) is provided on the surface of the lower section mounting plate (2), a trigger assembly and a transmission assembly are provided on the surface of the hull (1), a support plate (32) is fixedly mounted on the surface of the hull (1), a fixing plate (33) is fixedly mounted on one end of the support plate (32), a bolt fastener (36) is provided inside the fixing plate (33), an anti-collision plate (37) is provided on the surface of the fixing plate (33), and a rubber pad (40) is fixedly mounted on the outer surface of the anti-collision plate (37).

2. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 1 is characterized in that: A limiting plate (5) is fixedly mounted on the surface of the slide plate (4), and a limiting groove (6) is provided inside the slide groove (3).

3. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 1 is characterized in that: A connecting pipe (9) is fixedly mounted on the bottom surface of the upper lifting pipe (8), a connecting groove (11) is provided on the top surface of the lower lifting pipe (10), and a sealing ring (12) is provided inside the connecting groove (11).

4. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 1 is characterized in that: A seawater lifting pump (13) is fixedly mounted on the bottom surface of the lower lifting pipe (10), and a telescopic hose (14) is fixedly mounted on the top surface of the upper lifting pipe (8).

5. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 1 is characterized in that: The trigger comprises a fixing cylinder (15) fixedly mounted on the side of the hull (1), a spring (16) fixedly mounted inside the fixing cylinder (15), a lifting rod (17) fixedly mounted on one end of the spring (16), a trigger plate (18) fixedly mounted on the top end of the lifting rod (17), a sponge block (19) fixedly mounted on the inner side of the trigger plate (18), a connecting block (20) fixedly mounted on the surface of the lifting rod (17), a connecting plate (21) fixedly mounted on the surface of the connecting block (20), and a second tooth plate (22) fixedly mounted on the surface of the connecting plate (21).

6. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 5, characterized in that: The transmission assembly comprises a fixing frame (23) fixedly mounted on the surface of the hull (1); a first rotating shaft (24) is rotatably mounted inside the fixing frame (23); a first gear (25) is fixedly mounted on the surface of the first rotating shaft (24); a first sprocket wheel (26) is fixedly mounted on one end of the first rotating shaft (24); a chain (27) is meshingly mounted on the surface of the first sprocket wheel (26); and the second toothed plate (22) is meshingly arranged with the first gear (25).

7. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 6, characterized in that: A mounting frame (28) is fixedly mounted on the top surface of the hull (1); a second rotating shaft (29) is rotatably mounted on the surface of the mounting frame (28); a second sprocket (30) is fixedly mounted on the surface of the second rotating shaft (29); a second gear (31) is fixedly mounted on the surface of the second rotating shaft (29); and the second sprocket (30) is meshed with the chain (27).

8. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 7, characterized in that: A first tooth plate (7) is fixedly mounted on one side of the slide plate (4), and the first tooth plate (7) is meshed with the second gear (31).

9. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 1, characterized in that: A reinforcing plate (34) is fixedly mounted on the inner side of the fixing plate (33), and a plurality of groups of the reinforcing plates (34) are provided.

10. The FPSO side seawater lifting pump pipe anti-collision protection structure according to claim 1, characterized in that: The fixing plate (33) has a mounting groove (35) formed inside, a plug plate (38) is fixedly mounted on the surface of the anti-collision plate (37), a through hole (39) is formed on the surface of the plug plate (38), and the mounting groove (35) and the plug plate (38) are arranged correspondingly, and the through hole (39) and the bolt fastener (36) are arranged correspondingly.

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