Robust rotating energy supply on an FPSO mooring turret

• What was needed: rotating energy supply, E4.1 series energy chain
• Requirements: Permanent use on a mooring turret of an FPSO to ensure the guidance of the hose even in wind and weather and corrosive environments.
• Industry: Offshore
• Success for the customer: Thanks to the rotary module with a 380° angle of rotation, flexible hose feeding is possible. The plastic-energy chain E4.1 is corrosion-free and stable even under high tensile loads.

For an FPSO ship (Floating Production Storage and Offloading), an equally suitable energy supply should be found for the rotating "mooring turret", i.e. the mooring tower.
The towers, from which all production hoses emanate, are integrated internally in the ship's structure or are located externally at the bow. As they are firmly connected to the seabed via hoses for the extraction of oil and gas, the ship rotates around the mooring turret depending on the wind and weather conditions.
Accordingly, high demands were also placed on the energy supply system, which primarily related to the flexible alignment of the ship and high turning radii. In addition, the guidance of the hose is exposed to the conditions on the high seas. It must not corrode and must allow safe guidance even under heavy tensile loads.

A rotating energy supply from our company proved to be the optimum solution for the customer's requirements. The rotary module, consisting of two circular guide troughs, was connected to the structure of the mooring tower on the one hand and to the rotating part of the system on the other. The rotating energy supply allows a maximum rotation angle of 380° in the application and can also effortlessly handle fast movements of the FPSO vessel. An integrated strain relief, among other things, ensures a long service life. The module houses an energy chain from the E4.1 series, which is often used in offshore applications. The high stability, light weight and optimum utilisation of the available installation space have proven their worth in this application.