A turret single point mounting method

By using bearing connections and flatbed truck assistance, the precise installation and overall transportation of the turret-type single-point mooring device were achieved, solving the problems of high installation difficulty and low production efficiency, and improving the utilization efficiency of the terminal.

CN117302455BActive Publication Date: 2026-07-24DALIAN SHIPBUILDING INDUSTRY CO LTD
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Patent Information

Application Number
CN202311050482.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-21
Publication Date
2026-07-24
Estimated Expiration
2043-08-21

AI Technical Summary

Technical Problem

The installation of pontoons and turrets in turret-type single-point mooring devices is difficult, and the precision is hard to control, which affects production efficiency and occupies dock space. There is also a lack of efficient installation technology.

Method used

The pontoon and turret are connected by bearings. By using a combination of narrow and wide flatbed trucks, along with cranes and positioning pins, the pontoon and turret are precisely aligned and fixed. The entire assembly is then transported to the factory for installation of other structures.

Benefits of technology

It enables precise, safe, and efficient installation of pontoons and turrets, reduces the occupation of dock space, improves production efficiency, and solves the problem of lack of large cranes, allowing the installation and commissioning of other structures to be completed on the construction site.

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Abstract

A turret type single point installation method adopts three sets of supporting piers and two cranes to guide and install, one set of turret supporting pier, one set of pontoon supporting pier and one set of integral transfer steel supporting mandrel. Six installation guide protective rubber strips are used to protect the paint on the outer wall of the turret column and the inner wall of the pontoon, and the flat car is used for jacking installation and horizontal fine adjustment. The guide pin for auxiliary installation is used for bearing hole positioning; the flat car carries the integral transfer steel supporting mandrel to complete the field transfer of the assembly body for construction. After the construction is completed, the turret type single point assembly body is transferred to the delivery wharf, and is lifted onto the ship by the heavy lifting ship. The invention can accurately, safely, efficiently and reliably assemble the pontoon on the turret structure. The flat car is introduced to jointly transfer the integral steel supporting mandrel, and the integral transfer single point assembly body is transferred to other sites for construction, which solves the problem of lack of large cranes and enables the turret type single point to be transferred to the site for construction.
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