FPSO large flare tower building technology

Abstract

The invention discloses an FPSO large flare tower building technology. The technology comprises the following steps that 1, four main sections are built; 2, the four main sections are in butt joint to form a flare tower. In the first step, the method for building each main section comprises the following steps that 11, three groups of connection sections are built, wherein each group of the connection sections comprises seven connection sections; 12, the connection sections of each group are spliced into a stand column, wherein the abutted seam welding areas of every two adjacent connection sections are not in the same straight line; 13, multiple inclined struts are built and assembled with the first stand column, the second stand column and the third stand column to form the main section. According to the FPSO large flare tower building technology, ground construction is only needed, the construction cost is low, the construction period is short, and potential safety hazards caused by working at heights are avoided; the abutted seam welding areas of the adjacent connection sections are staggered by a certain angle, and the weak structure caused due to the fact that the abutted seam welding areas are in the same straight line is avoided; all the stand columns and inclined struts are assembly gradually from bottom to top, and the cutting accuracy of the inclined struts is easy to control.

Description

technical field [0001] The invention relates to the field of ship construction, in particular to an overall construction process of a large FPSO flare tower. Background technique [0002] With the development of the world's industrial economy, deep-sea oil fields are gradually being developed, and the demand for FPSO ships (Floating Production Storage and Offloading floating production storage and offloading devices) and other corresponding offshore engineering products continues to increase. The flare tower (Flarestack) is a unique structure on the FPSO. It is a device for treating exhaust gas by means of high-altitude open-air combustion, and it is also an important equipment in the offshore oil and gas production system. Generally, the construction of torch towers needs to consider environmental protection and safety, so there are specific requirements for the height of the tower body. In the project of converting VLCC to FPSO, please refer to figure 1 , the torch tower...

AI Technical Summary

Problems solved by technology

Such a large torch tower has the characteristics of large tonnage, high center of gravity, irregular structure, and easy deformation or fracture if the steel structure is not handled properly. The traditional construction method of the torch tower is to build each main section on the ground, and then separate the main sections Hoisting to high altitude and docking at high altitude

This kind of construction method needs to build very high scaffolding, which not only increases the cost, but also makes a lot of high-altitude operations unsafe.

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