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Seawater lifting pipe and manufacturing method thereof

A seawater lifting and pipe body technology, applied in the direction of pipes, rigid pipes, pipeline protection, etc., can solve the problems of long docking period, waste of docking man-hours, difficult boring, etc., to avoid delayed delivery, improve waterproof level, The effect of improving structural strength

Pending Publication Date: 2022-01-04
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the FPSO seawater riser needs to be bored in the dock stage. Due to the extremely high hardness of the material of the anti-wear ring of the FPSO seawater riser, boring is extremely difficult, and a lot of dock man-hours are wasted, resulting in a long cycle in the dock stage. Very close to delivery, if the boring is a little careless, it may cause delay in delivery

Method used

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  • Seawater lifting pipe and manufacturing method thereof
  • Seawater lifting pipe and manufacturing method thereof
  • Seawater lifting pipe and manufacturing method thereof

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Embodiment Construction

[0034] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describin...

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Abstract

The invention relates to the technical field of ocean engineering construction, and discloses a seawater lifting pipe and a manufacturing method thereof. The seawater lifting pipe comprises a pipe body as well as a supporting ring, multiple reinforcing ribs, an anti-abrasion ring, a guide rib and a reinforcing ring which are arranged on the pipe body; the supporting ring, the reinforcing ribs, the anti-abrasion ring and the guide rib are arranged on the inner side wall of the pipe body, the supporting ring is connected with the reinforcing ribs, the reinforcing ribs are arranged in the circumferential direction of the supporting ring, and the reinforcing ring is arranged on the outer side wall of the pipe body. The seawater lifting pipe is simple in structure and easy to machine and manufacture, the anti-abrasion ring can be bored in the ship body segmentation stage, boring in the dock stage is not needed, the machining period of the dock stage is greatly shortened, risk points are moved forwards, if boring has problems, enough time is provided for remedy, and delayed ship delivery is avoided.

Description

technical field [0001] The invention relates to the technical field of marine engineering construction, in particular to a seawater riser and a manufacturing method thereof. Background technique [0002] With the development of industrial economy, deep-sea oil fields are gradually being developed, and the number of deep-sea drilling and oil production platforms continues to increase. Floating Production Storage and Offloading (FPSO) is a relatively advanced deep-sea oil production platform. Its construction or The need for retrofits is also increasing. The seawater lift pump is a necessary component of FPSO. It works under the sea level and lifts seawater to the FPSO platform through the seawater riser. It provides cooling water and production water for other equipment on the FPSO. Since the seawater lift pump works in seawater all the year round, in order to ensure its stable working performance, it is usually necessary to build a section of seawater lift pipe and fix the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/00F16L57/06B23P15/00
CPCF16L9/00F16L57/06B23P15/00
Inventor 李宁徐占勇聂家平宋金扬孙建志叶飞
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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