Single-pile-leg single-point mooring device capable of being matched with shuttle tanker

Abstract

A single-pile-leg single-point mooring device capable of being matched with a shuttle tanker is provided with a base and a rotating tower, the base is provided with a circular base body, a pipeline platform is welded to the side face of the base body, and an insertion pile is fixed to the bottom of the base body. The turret is fixed on the base main body, the turret is provided with a round turret main body, a liquid slip ring is fixed in the turret main body, the liquid slip ring consists of a fixed slip ring and a movable slip ring, the turret main body is fixedly connected with the fixed slip ring, an adaptive tower is fixed at the bottom of the turret main body, and the adaptive tower is inserted into the turret main body from the upper part of the base main body to be fixed; and an S-shaped pipe group is fixed in the turret main body. The S pipe set is composed of an upper pipe section and a lower pipe section, the upper pipe section is fixedly connected with the movable sliding ring, the lower pipe section penetrates through the turret body, is located in the adaptive tower and is fixedly connected with the fixed sliding ring, and the free end of the upper pipe section is connected with a conveying pipeline on the cruise ship. Compared with a traditional semi-submersible single-point mooring device, the semi-submersible single-point mooring device has the advantages of being compact in structure, light in weight, convenient to operate, safe, reliable and the like and can be applied to deepwater sea areas.

Description

Technical Field

[0001] The invention belongs to the field of ship construction and design, and in particular relates to a single-pile-leg single-point mooring device that can be matched with a shuttle tanker. Background Art

[0002] The single point mooring device is used as an offshore wharf, i.e. a transfer station, for oil product transfer between land factories or offshore production and storage platforms and oil tankers. It has two main functions: 1. mooring oil tankers; 2. oil product transfer.

[0003] The offshore crude oil transmission route is usually: the production platform is transported to ordinary tankers through submarine pipelines, submarine manifolds, risers, single-point mooring devices and floating hoses. At present, the production platform can only use semi-submersible single-point mooring devices in conjunction with ordinary tankers to transport oil products without an unloading system. Because ordinary tankers have low efficiency in loading oil products, low automation rate and safety, manufacturers urgently need to use shuttle tankers in conjunction with single-point mooring devices for oil product transmission. At present, single-point mooring devices are usually semi-submerged in the water, resulting in the disadvantages of heavy structure weight, poor economic benefits, and inability to match shuttle tankers. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a single-pile-leg single-point mooring device that can match the shuttle tanker, aiming to achieve the purpose of matching the shuttle tanker. The technical solution adopted is:

[0005] A single-pile-leg single-point mooring device that can be matched with a shuttle tanker comprises a base and a turret. The base has a circular base body, a pipeline platform is welded to the side of the base body, and a pile is fixed to the bottom of the base body.

[0006] The turret is fixed on the base body. The turret has a circular turret body. A liquid slip ring is fixed inside the turret body. The liquid slip ring is composed of a fixed slip ring and a movable slip ring. The turret body is fixedly connected to the fixed slip ring. An adapter tower is fixed at the bottom of the turret body. There is a groove at the center of the top of the base body. The adapter tower is inserted into the groove from the top of the base body and fixed. An S tube group is fixed inside the turret body.

[0007] The S pipe group consists of an upper pipe section and a lower pipe section. The upper pipe section and the lower pipe section are connected to form an S shape. The upper pipe section is fixedly connected to the movable slip ring, and the lower pipe section passes through the turret body and is located in the adapter tower, and is fixedly connected to the fixed slip ring. The free end of the upper pipe section is connected to the conveying pipeline on the cruise ship.

[0008] The above-mentioned single-pile-leg single-point mooring device that can be matched with a shuttle tanker, further, has a steel ring fixed on the upper outer surface of the pile, and the steel ring is connected to the seabed anchor pile to fix the pile on the seabed.

[0009] The above-mentioned single-pile-leg single-point mooring device that can be matched with a shuttle tanker, further, has a base body whose diameter gradually decreases upwards.

[0010] The above-mentioned single-pile-leg single-point mooring device that can be matched with a shuttle tanker, further, the wear-resistant pad is fixed to the lower surface of the turret body by fastening screws.

[0011] The above-mentioned single-pile-leg single-point mooring device that can be matched with a shuttle tanker, further, has an adapter tower locking mechanism fixed in the turret body, and the adapter tower locking mechanism buckles the adapter tower to limit the rotation angle of the turret body relative to the adapter tower.

[0012] The above-mentioned single-pile-leg single-point mooring device that can be matched with a shuttle tanker, further, the free end of the lower pipe section passes through the side wall of the adapter tower and is connected to the product conveying pipeline.

[0013] The advantages of the present invention are that, compared with the traditional semi-submersible single-point mooring device, it has the characteristics of compact structure, light weight, convenient operation, safety and reliability, and can be applied to deep waters. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a schematic diagram of the base structure;

[0016] Figure 3 It is a schematic diagram of the turret structure;

[0017] Figure 4 It is a schematic diagram of the cross-section structure of the turret;

[0018] Figure 5 It is a schematic diagram of the structure of a liquid slip ring;

[0019] Figure 6 It is a schematic diagram of the structure of the S tube group;

[0020] Among them, 1-base, 2-turret, 3-product pipeline, 4-piles, 5-steel ring, 6-pipeline platform, 7-fixed slip ring, 8-moving slip ring, 9-adapter tower, 10-upper pipe section, 11-lower pipe section, 12-fastening screws, 13-adapter tower locking mechanism, 14-wear-resistant pads, 15-base body, 16-turret body, 17-bolts. DETAILED DESCRIPTION

[0021] The present invention will be further described in conjunction with the accompanying drawings.

[0022] A single-leg single-point mooring device that can be matched with a shuttle tanker, such as Figure 1 As shown, there is a base and a turret, such as Figure 2As shown, the base has a circular base body, a pipeline platform is welded to the side of the base body, a pile is fixed to the bottom of the base body, the diameter of the base body gradually decreases upwards, a steel ring is fixed to the upper outer surface of the pile, and the steel ring is connected to the seabed anchor pile to fix the pile to the seabed.

[0023] like Figure 3 , 5 As shown, the turret is fixed on the base body. The turret has a circular turret body. A liquid slip ring is fixed inside the turret body. The liquid slip ring is composed of a fixed slip ring and a movable slip ring. The turret body is fixedly connected to the fixed slip ring. An adapter tower is fixed at the bottom of the turret body. The top center of the base body has a groove. The adapter tower is inserted into the groove from the top of the base body and fixed. An S-tube group is fixed in the turret body. The wear-resistant pad is fixed to the bottom surface of the turret body by bolts. When the turret body rotates relative to the adapter tower, it plays a protective role. It can be replaced during the overhaul stage to protect the adapter tower from wear. An adapter tower locking mechanism is fixed in the turret body. The adapter tower locking mechanism buckles the adapter tower to limit the rotation angle of the turret body relative to the adapter tower.

[0024] like Figure 4 , 6 As shown, the S pipe group consists of an upper pipe section and a lower pipe section. The upper pipe section and the lower pipe section are connected to form an S shape. The upper pipe section is fixedly connected to the movable slip ring, the lower pipe section passes through the turret body and is located in the adapter tower, and is fixedly connected to the fixed slip ring. The free end of the lower pipe section passes through the side wall of the adapter tower and is connected to the product conveying pipeline. The free end of the upper pipe section is connected to the conveying pipeline on the cruise ship. A flange is provided at the end of the product conveying pipeline, which is connected to the submarine pipeline through the flange and transmitted to the land, and vice versa.

[0025] The advantages of the present invention are that, compared with the traditional semi-submersible single-point mooring device, it has the characteristics of compact structure, light weight, convenient operation, safety and reliability, and can be applied to deep waters.

Claims

1. A single-leg single-point mooring device that can be matched with a shuttle tanker, characterized in that: The utility model comprises a base (1) and a turret (2), wherein the base has a circular base body, a pipeline platform (6) is welded on the side of the base body, and a plug pile (4) is fixed on the bottom of the base body; The turret is fixed on the base body. The turret has a circular turret body. A liquid slip ring is fixed inside the turret body. The liquid slip ring is composed of a fixed slip ring (7) and a movable slip ring (8). The turret body is fixedly connected to the fixed slip ring. An adapter tower (9) is fixed at the bottom of the turret body. A groove is provided at the center of the top of the base body. The adapter tower is inserted into the groove from the top of the base body and fixed. An S tube group is fixed inside the turret body. The S pipe group consists of an upper pipe section (10) and a lower pipe section (11). The upper pipe section and the lower pipe section are connected to form an S shape. The upper pipe section is fixedly connected to a movable slip ring. The lower pipe section passes through a turret body and is located in an adapter tower and is fixedly connected to a fixed slip ring. The free end of the upper pipe section is connected to a conveying pipeline on the cruise ship.

2. A single-leg single-point mooring device that can be matched with a shuttle tanker according to claim 1, characterized in that: A steel ring (5) is fixed on the outer surface of the upper part of the pile, and the steel ring is connected to the seabed anchor pile to fix the pile on the seabed.

3. A single-leg single-point mooring device that can be matched with a shuttle tanker according to claim 1, characterized in that: The diameter of the base body gradually decreases upward.

4. A single-leg single-point mooring device that can be matched with a shuttle tanker according to claim 1, characterized in that: The wear-resistant pad (14) is fixed to the lower surface of the turret body by means of a fastening screw (12).

5. The single-leg single-point mooring device that can be matched with a shuttle tanker according to claim 1, characterized in that: An adapter tower locking mechanism (13) is fixed inside the turret body, and the adapter tower locking mechanism locks the adapter tower to limit the rotation angle of the turret body relative to the adapter tower.

6. A single-leg single-point mooring device that can be matched with a shuttle tanker according to claim 1, characterized in that: The free end of the lower pipe section passes through the side wall of the adapter tower and is connected to the product conveying pipeline (3).

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