Special PE (Poly Ethylene) treatment cabin penetrating piece for ballasting system of floating production storage and offloading device

Abstract

The utility model discloses a special PE (Poly Ethylene) processing cabin penetrating piece for a ballast system of a floating production storage and offloading device, which comprises a ballast pipe (1) coated with polyethylene inside, pipeline flanges (2), cabin penetrating sleeves (3), cabin penetrating webs (4) and a watertight bulkhead (5), the pipeline flanges (2) are arranged at two ends of the ballast pipe (1) coated with polyethylene inside, the cabin penetrating sleeves (3) are arranged on the ballast pipe (1) coated with polyethylene inside, and the cabin penetrating webs (4) are arranged on the watertight bulkhead (5). The cabin penetrating web (4) is installed on the cabin penetrating sleeve (3), and the watertight cabin wall (5) is fixedly connected with the cabin penetrating web (4). According to the special PE treatment cabin penetrating piece for the ballast system of the floating production storage and offloading device, the size specification of the web of the cabin penetrating piece is increased, and the cabin penetrating sleeve is additionally arranged at the position of the cabin penetrating piece, so that heat transfer to the interior of a pipeline during field welding of the web and a watertight bulkhead is reduced, a PE coating in the cabin penetrating piece of the ballast system is protected against damage, and the service life of the cabin penetrating piece is prolonged. And the service life of the whole ballast system is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of Floating Production Storage and Offloading (PFSO) devices, and in particular to a special PE treatment liner for the ballast system of a PFSO device. Background Technology

[0002] Floating Production Storage and Offloading (PFSO) units are marine engineering equipment capable of producing, processing, storing, and unloading crude oil. As marine engineering projects for offshore oilfield operations, once a project is put into operation, it must guarantee at least 25 years of quality assurance without dry-docking overhauls. This places increasingly higher demands on the corrosion protection of the project's hull structure, equipment, outfitting components, pipelines, etc. At the same time, it places increasing emphasis on the protection of the coatings inside the pipelines during the construction phase, and it also imposes increasingly strict control over damage to the internal coatings caused by on-site welding after the pipelines have been coated. Utility Model Content

[0003] The purpose of this invention is to provide a special PE-treated ballast system for floating production storage and offloading devices that effectively prevents the polyethylene coating inside the ballast system from being burned by heat transfer during welding to the watertight bulkhead.

[0004] The technical solution adopted by this utility model to achieve the above objectives is: a special PE-treated tank penetration component for the ballast system of a floating production storage and offloading device, including a ballast pipe (1) with internal polyethylene coating, a pipeline flange (2), a tank penetration sleeve (3), a tank penetration web (4), and a watertight bulkhead (5). The pipeline flange (2) is installed at both ends of the internal polyethylene-coated ballast pipe (1), the tank penetration sleeve (3) is installed on the internal polyethylene-coated ballast pipe (1), the tank penetration web (4) is installed on the tank penetration sleeve (3), and the watertight bulkhead (5) is fixedly connected to the tank penetration web (4).

[0005] After the ballast pipe (1), pipeline flange (2), pier sleeve (3), and pier web plate (4) with internal polyethylene coating are fixed together, the interior is coated with polyethylene.

[0006] The penetration component increases the size of the penetration web (4) and the opening size of the watertight bulkhead (5), thereby increasing the distance between the weld of the penetration web (4) and the watertight bulkhead (5) and the ballast pipe (1) coated with polyethylene, thus protecting the polyethylene coating inside the ballast pipe (1).

[0007] This utility model discloses a special PE-treated ballast system for a floating production storage and offloading device. By increasing the size of the web plate of the ballast system and adding a ballast sleeve at the ballast system location, the heat transfer to the pipeline during on-site welding of the web plate to the watertight bulkhead is reduced, the polyethylene (PE) coating inside the ballast system is protected from damage, and the service life of the entire ballast system is extended. Attached Figure Description

[0008] Figure 1 This is a top view of a special PE treatment penetrating component for the ballast system of a floating production storage and unloading device according to this utility model.

[0009] Figure 2 yes Figure 1 A sectional view along the AA direction.

[0010] In the diagram: 1. Ballast pipe with polyethylene coating inside; 2. Pipeline flange; 3. Through-tank sleeve; 4. Through-tank web; 5. Watertight bulkhead. Detailed Implementation

[0011] like Figure 1 and Figure 2 As shown, the PE-treated penetration component of the ballast system for a floating production storage and offloading (FPSO) unit includes a ballast pipe 1 with an internal polyethylene coating, a pipe flange 2, a penetration sleeve 3, a penetration web 4, and a watertight bulkhead 5. The pipe flange 2 is installed at both ends of the internally polyethylene-coated ballast pipe 1, the penetration sleeve 3 is installed on the internally polyethylene-coated ballast pipe 1, the penetration web 4 is installed on the penetration sleeve 3, and the watertight bulkhead 5 is fixedly connected to the penetration web 4. After all components are welded together, the interior is coated with polyethylene. Finally, the entire penetration component is welded to the watertight bulkhead 5 on-site via the penetration web 4. By increasing the size of the penetration web 4, the opening size of the watertight bulkhead 5 is also enlarged, ultimately achieving an enlarged penetration web. The distance between the weld between plate 4 and watertight bulkhead 5 and the ballast pipe 1 with internal polyethylene coating is reduced, thus reducing heat transfer to the interior of the ballast pipe 1 with internal polyethylene coating during on-site welding of the through-hull component and watertight bulkhead 5, protecting the internal polyethylene coating of the ballast pipe 1 from damage. At the same time, by adding a through-hull sleeve 3 to the through-hull component, the heat conductor between the weld between the through-hull web 4 and watertight bulkhead 5 and the internal polyethylene coating of the ballast pipe 1 is increased, thereby reducing heat transfer to the interior of the ballast pipe 1 with internal polyethylene coating during on-site welding of the through-hull web 4 and watertight bulkhead 5, similarly protecting the internal polyethylene coating of the ballast pipe 1 from damage, and thus extending the service life of the entire ballast system.

Claims

1. A special PE-treated penetration component for the ballast system of a floating production storage and offloading (FPSO) unit, characterized in that: The ballast pipe (1) with internal polyethylene coating, the pipe flange (2), the ballast sleeve (3), the ballast web (4), and the watertight bulkhead (5) are included. The pipe flange (2) is installed at both ends of the internal polyethylene coated ballast pipe (1), the ballast sleeve (3) is installed on the internal polyethylene coated ballast pipe (1), the ballast web (4) is installed on the ballast sleeve (3), and the watertight bulkhead (5) is fixedly connected to the ballast web (4).

2. The PE-treated penetration component for the ballast system of a floating production storage and offloading (FPSO) device according to claim 1, characterized in that: After the ballast pipe (1), pipeline flange (2), pier sleeve (3), and pier web plate (4) with internal polyethylene coating are fixed together, the interior is coated with polyethylene.

3. The PE-treated penetration component for the ballast system of a floating production storage and offloading (FPSO) device according to claim 1, characterized in that: The penetration component increases the size of the penetration web (4) and the opening size of the watertight bulkhead (5), thereby increasing the distance between the weld of the penetration web (4) and the watertight bulkhead (5) and the ballast pipe (1) coated with polyethylene, thus protecting the polyethylene coating inside the ballast pipe (1).

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