CN106677131A - LNG terminal pier anti-collision device - Google Patents

Abstract

An LNG pier abutment anti-collision device belongs to the technical field of safe facilities of pier abutment. This buffer stop includes bank end box and ship end box, and during bank end box embedding mobile station, make bank end box make lateral shifting along the pier through motor drive, motor and bank end electro-magnet in the bank end box are connected with the buffer stop control cabinet electricity. The roller of the mobile station is embedded in the longitudinal slideway, and the telescopic cable drives the mobile station to move up and down. One side of the ship end box body is provided with a ship end electromagnet, and an external wire above the ship end box body is electrically connected with the ship end electromagnet. Two semicircular rings are arranged on the ship end box body, and manually used semicircular rings are arranged on the side faces of the ship end box body. The anti-collision device reasonably utilizes the mutual repulsion force of the homopolar magnets, and neutralizes the impact force generated by the transverse movement of the LNG ship by utilizing the mutual repulsion force generated by the ship-end permanent magnet on the ship-end box body and the electromagnet on the shore-end box body. The impact of the LNG ship to the pier of the wharf berthing pier is reduced, the surface of the ship body is protected, and the safety of the LNG ship when berthing is improved.

Description

LNG terminal pier anti-collision device

technical field

The invention relates to an anti-collision device for a berthing pier of an LNG wharf, belonging to the technical field of safety facilities for berthing at a wharf.

Background technique

Now my country's LNG terminals are under construction in full swing, most of which are pier terminals. The pier type wharf is a discontinuous structure, which is composed of docking pier, mooring pier, working platform pier, approach bridge and pedestrian bridge. Among them, the mooring piers are used to moor the LNG ship on the shore and prevent the LNG ship from moving greatly with the waves. The berthing pier is to prevent the lateral movement of the LNG ship from hitting the wharf.

The traditional pier is made of cement or steel. The impact force of each collision of an LNG ship under the action of waves will directly act on the side of the hull, which will cause impact damage to the LNG hull and pier. At present, the tonnage of ships docked at LNG terminals in my country is mostly 90,000 to 266,000 cubic meters. For large LNG ships, due to inertia, each lateral movement has a huge force on the pier. Deformation or damage may occur, and it will also affect the internal structure of the hull, so that it will lead to shipwreck accidents, causing casualties and economic losses. Therefore, it is imperative to design a berthing pier device to reduce the risk during berthing of LNG ships.

Contents of the invention

In order to overcome the problems existing in the prior art, the present invention provides an anti-collision device for berthing pier of LNG wharf. The mutual repulsion generated by mutual repulsion reduces the impact force generated by the lateral movement of the LNG ship, which greatly improves the safety of the LNG ship when berthing.

The technical solution adopted in the present invention is: an anti-collision device for an LNG wharf berthing pier, which includes a wharf and a cable, and also includes a shore-end box and a ship-end box. The motor in the terminal box drives the large gear through the pinion to drive the rollers of the shore-end box to rotate in the transverse chute of the mobile platform, so that the shore-end box moves laterally along the wharf. The motor in the shore-end box and the shore-end The electromagnet is electrically connected to the console of the anti-collision device through the wire group, and the shock-absorbing protective rubber pad of the shore end box is covered outside the electromagnet at the shore end; the mobile platform is positioned on the side of the anti-collision device console through a retractable cable, The rollers of the mobile platform are embedded in the longitudinal slideway, and the retractable cable drives the mobile platform to move up and down; the console of the anti-collision device is installed on the side of the pier, and the LNG ship is docked on the side of the pier through the cable; the end box of the ship One side is equipped with a ship-end electromagnet that touches the surface of the LNG ship through an elastic base. The external wire above the ship-end box is electrically connected to the ship-end electromagnet. Outside the permanent magnet on the side; two semi-circular rings for hoisting are provided on the upper plane of the ship end box, and a semi-circular ring for manual use is provided on each side.

The shore end electromagnet is fixed in the shore end box through the left and right two electromagnet fixing pieces and the support platform at the bottom. connect.

The ship end electromagnet is fixed on the base in the ship end box, and the magnetic isolation material plate isolates the ship end electromagnet and the permanent magnet, and the permanent magnet is fixed on the ship end box by the left and right permanent magnet fixing pieces and the upper and lower support columns. body.

The beneficial effects of the present invention are: the anti-collision device for the pier of the LNG wharf includes a wharf, a cable, a shore box and a ship end box, the shore box is embedded in a mobile platform, and the shore box is driven by a motor to move along the The wharf moves laterally, and the motor in the shore end box and the shore end electromagnet are electrically connected with the console of the anti-collision device. The mobile platform rollers on the mobile platform are embedded in the longitudinal slideway, and the retractable cables drive the mobile platform to move up and down. One side of the ship end box is provided with a ship end electromagnet contacting the surface of the LNG ship through an elastic base, and the external wire above the ship end box is electrically connected to the ship end electromagnet. The upper plane of the box body at the end of the ship is provided with two semi-circular rings, and the side is provided with semi-circular rings for manual use. The anti-collision device reasonably utilizes the mutual repulsion force of the same poles of the magnets, and uses the force generated by the mutual repulsion of the permanent magnet on the ship end box and the electromagnet on the shore end box to neutralize the impact force generated by the lateral movement of the LNG ship. The impact force of the LNG ship on the wharf pier is reduced, the surface of the hull is protected, and the safety of the LNG ship is improved when it is docked.

Description of drawings

Figure 1 is a top view of the anti-collision device for the pier of the LNG terminal.

Fig. 2 is a perspective view of the shore arrangement of the pier anti-collision device.

Fig. 3 is a side view of the shore end of the pier anti-collision device.

Fig. 4 is a perspective view of the shore tank.

Figure 5 is a top view of the shore box.

Fig. 6 is a view of A-A in Fig. 5 .

Fig. 7 is a B-B view in Fig. 5 .

Fig. 8 is a structural front view of the ship's end box.

Fig. 9 is a perspective view of one side of the ship end box.

Fig. 10 is a perspective view of the other side of the ship's end box.

Fig. 11 is a top view of the structure of the ship's end box.

Fig. 12 is a C-C view in Fig. 11 .

Fig. 13 is a D-D view in Fig. 11 .

FIG. 14 is an E-E view of FIG. 11 .

In the figure: 1. Wharf, 2. Cable, 3. Anti-collision device console, 4. Longitudinal slide, 5. Retractable cable, 6. Wire group, 7. Mobile platform, 7a, Horizontal chute, 8. Shore End box body, 8a, electromagnet fixed piece, 8b, isolation plate, 8c, motor, 8d, support platform, 8e, large gear, 9, semi-circular ring, 10, elastic base, 11, ship end electromagnet, 12, Ship end box, 12a, electric wire, 12b, magnetic isolation material plate, 12c, base, 12d, permanent magnet fixing piece, 12e, support column, 13, external wire, 14, semicircular ring for manual use, 15, LNG ship, 16. Shock-absorbing and protective rubber pads for ship-end boxes, 17. Mobile platform rollers, 18. Shore-side box rollers, 19. Shore-end box shock-absorbing and protective rubber pads, 20. Permanent magnets, 21. Shore-side electromagnets.

detailed description

The system of the patent of the present invention will be further described below with reference to the accompanying drawings.

Figure 1 describes the layout of the anti-collision device for the pier of the LNG terminal. The anti-collision device console 3 is installed on the side of the wharf 1, and the LNG ship 15 is docked on the side of the wharf through the cable 2.

Figures 2, 3, 4, 5, 6 and 7 describe the arrangement of shore-end devices for the pier anti-collision device. The shore-side box 8 is embedded in the mobile platform 7, and the motor 8c drives the 7 large gears 8e through the pinion to drive the shore-side box rollers 18 in the transverse chute 7a to rotate, so that the shore-side box 8 moves along the wharf 1. Moving laterally, the wire group 6 above the shore end box 8 extends to the console 3 to provide power for the shore end box roller 18 and the shore end electromagnet 21 on the shore end box 8 . Shore end box shock-absorbing protection rubber pad 19 is enclosed within outside the shore end electromagnet 21, prevents collision damage. The opposing polarities of the shore end electromagnet 21 and the permanent magnet 20 are the same, and the mutual repulsion force generated by the same polarity reduces the lateral impact force of the LNG ship 15 .

The mobile platform 7 is positioned on the side of the anti-collision device console 3 by the retractable cable 5, and the mobile platform roller 17 on the mobile platform 7 is embedded in the longitudinal slideway 4, and the telescopic movement of the retractable cable 5 drives the mobile platform 7 to move up and down.

Figures 8, 9, 10 and 11 illustrate the ship end box arrangement. The ship end tank 12 is adsorbed on the surface of the LNG ship 15 by the ship end electromagnet 11 . The elastic base 10 contacts the surface of the LNG ship 15 to reduce the impact force caused by the collision between the ship end box body 12 and the shore end box body 8 due to excessive wind and waves. The external electric wire 13 is placed on the top of the ship's end box body 12, and supplies power to the ship's end electromagnet 11. The crane hooks the semi-circular ring 9 and moves to the designated position from the top of the hull, and the wharf staff manually uses the semi-circular ring 14 to fine-tune the ship's end box 12 until it is placed in the correct position. Ship end box shock-absorbing protective rubber pad 16 is enclosed within outside permanent magnet 20, prevents collision damage. The permanent magnet 20 is placed in the ship end box body 12, and the non-working state is sealed with a magnetic isolation material cover.

Figures 12, 13 and 14 describe the internal structure of the end box. The ship-end electromagnet 11 is fixed on the base 12c, and the base 12c is fixed in the ship-end box 12. The external electric wire 13 provides power to the ship-end electromagnet 11 through the electric wire 12a, and the magnetic isolation material plate 12b isolates the ship-end electromagnet 11 from the permanent magnet20. The permanent magnet 20 is fixed in the ship end box body 12 by two left and right permanent magnet fixing pieces 12d and up and down support columns 12e.

The permanent magnet on the ship end box and the shore end electromagnet on the shore end box repel each other with the same pole, and the mutual repulsion force reduces the impact force generated by the lateral movement of the LNG ship.

The shore-end box is embedded in the mobile platform, and the rollers of the shore-end box are driven by the motor to drive the large gear to realize the lateral movement of the shore-end box along the wharf. The wire group above the shore-end box extends to the console, providing a The shore end box roller and the shore end electromagnet on the end box provide power. The shock-absorbing protective rubber cushion of the box at the end of the ship is covered outside the electromagnet at the shore end to prevent collision damage. The shore end electromagnet is fixed in the shore end box through the left and right two electromagnet fixing plates and the support platform at the bottom, and the isolation plate isolates the shore end electromagnet and the shore end box roller motor. The wires from the shore solenoid are connected to the wire group through the isolation plate. The mobile platform is positioned on the side of the anti-collision device console through the retractable cable, and the mobile platform rollers on the mobile platform are embedded in the slideway, and the telescopic movement of the retractable cable drives the mobile platform to move up and down. The console of the anti-collision device is installed on the side of the pier, and the LNG ship is docked on the side of the pier through cables.

The ship end box is adsorbed to the surface of the LNG ship through the ship end electromagnet. The elastic base contacts the surface of the LNG ship to reduce the impact force caused by the collision between the ship end box and the shore end box due to excessive wind and waves. The external wires are placed above the box at the end of the ship to supply power to the electromagnet at the end of the ship. The crane hooks the semi-circular ring and moves it from above the hull to the designated position, and the dock staff manually use the semi-circular ring to fine-tune the box at the end of the ship until the placement is completed. The shock-absorbing protective rubber cushion of the box at the end of the ship is covered outside the permanent magnet to prevent collision damage. The permanent magnet is placed in the box at the end of the ship, and is sealed with a magnetic isolation material cover in the non-working state. In the ship's end box, the ship's end electromagnet is fixed on the base, and the base is fixed on the ship's end box. External wires provide power to the ship's end electromagnet through the wires, and the magnetic isolation material plate isolates the ship's end electromagnet and the permanent magnet. The permanent magnet is fixed in the ship end box by the left and right permanent magnet fixing pieces and the upper and lower support columns.

Claims (3)

1. An anti-collision device for an LNG wharf berthing pier, which includes a wharf (1) and a cable (2), and is characterized in that: it also includes a shore end box (8) and a ship end box (12), said The shore box (8) is embedded in the mobile platform (7), and the motor (8c) in the shore box (8) drives the large gear (8e) through the pinion to drive the rollers (18) of the shore box on the mobile platform. (7) to rotate in the transverse chute (7a), so that the shore end box (8) moves laterally along the wharf (1), and the motor (8c) in the shore end box (8) and the shore end electromagnet ( 21) Electrically connect with the anti-collision device console (3) through the wire group (6), and the shock-absorbing protective rubber pad (19) of the shore end box is set outside the shore end electromagnet (21); the mobile station (7) The retractable cable (5) is positioned on the side of the anti-collision device console (3), the mobile platform roller (17) on the mobile platform (7) is embedded in the longitudinal slideway (4), and the retractable cable (5) drives The mobile platform (7) moves up and down; the anti-collision device console (3) is installed on the side of the wharf (1), and the LNG ship (15) is docked on the side of the wharf (1) through the cable (2); One side of the box body (12) is provided with a ship-end electromagnet (11) that contacts the surface of the LNG ship (15) through an elastic base (10), and the external wire (13) above the ship-end box body (12) is connected to the ship-end electromagnet. The iron (11) is electrically connected, and the shock-absorbing protective rubber pad (16) of the ship’s end box is set outside the permanent magnet (20) on the other side of the ship’s end box (12); the top of the ship’s end box (12) Two semi-circular rings (9) for hoisting are arranged on the plane, and a semi-circular ring (14) for manual use is provided on each side. 2. The anti-collision device for an LNG pier pier according to claim 1, characterized in that: the shore end electromagnet (21) passes through two left and right electromagnet fixing pieces (8a) and a support platform at the bottom ( 8d) Fixed in the shore end box (8), the isolation plate (8b) isolates the shore end electromagnet (21) and the motor (8c), and the wire of the shore end electromagnet (21) passes through the isolation plate (8b) and the wire group (6) Electrical connection. 3. A kind of anti-collision device for LNG pier pier according to claim 1, characterized in that: the ship-end electromagnet (11) is fixed on the base (12c) in the ship-end box (12), The magnetic isolation material plate (12b) isolates the electromagnet (11) and the permanent magnet (20) at the end of the ship, and the permanent magnet (20) is fixed on the end of the ship through two permanent magnet fixing pieces (12d) on the left and right and the upper and lower support columns (12e) In the box (12).