Anti-ice device applicable to shell spud leg self-lifted type ocean platform

Abstract

The invention discloses an anti-ice device applicable to a shell spud leg self-lifted type ocean platform. A group of moveable anti-ice corns is mounted at a self-lifted type ocean platform spud leg, and the anti-ice device comprises a central anti-ice corn and a connecting, moving and fixing device, wherein the central anti-ice corn is mounted outside the self-lifted type ocean platform spud leg; the connecting, moving and fixing device is arranged between the spud leg and the anti-ice corn. By adopting the anti-ice device, extrusion damage of a vertical structure of a sea ice load to the self-lifted type ocean platform spud leg can be converted into bent damage of a corn structure, so that the extreme ice force value and the structural ice-induced vibration can be effectively reduced, and the security of the platform is ensured. Meanwhile, the central corn and a spud boot can stretch into a deck platform together, and thus convenience can be brought to movement of the platform. The anti-ice device is applicable to a shell cylindrical spud leg and is simple to implement, and due to the connecting and moving device between the spud leg and the anti-ice corn, the anti-ice corn can be adaptive to the working mode of the self-lifted type ocean platform.

Description

technical field [0001] The invention belongs to the technical field of anti-icing of ocean platforms, and relates to a self-elevating anti-icing device for ocean platforms suitable for shell legs. Background technique [0002] There are few application examples of jack-up offshore platforms in cold regions, because they will be affected by flowing ice in winter, such as the Bohai Sea in my country. This effect will lead to the vibration of the jack-up offshore platform to intensify. When the spectrum of this effect is close to the natural vibration period of the structure, it will cause the steady vibration of the platform, accelerate the fatigue failure of the platform, and affect the normal operation of the platform staff. Therefore, attention should be paid to the vibration of the platform caused by the collision of ice load when building the platform. At present, there are no measures to reduce sea ice damage on the jack-up offshore platform. Therefore, an anti-icing de...

AI Technical Summary

Problems solved by technology

This effect will lead to the vibration of the jack-up offshore platform to intensify. When the spectrum of this effect is close to the natural vibration period of the structure, it will cause the steady vibration of the platform, accelerate the fatigue failure of the platform, and affect the normal operation of the platform staff. Therefore, attention should be paid to the platform vibration caused by the collision of ice load when building the platform

At present, there are no measures to reduce sea ice damage on the jack-up offshore platform. Therefore, an anti-icing device for the jack-up offshore platform that can solve the above problems is a very useful application in the anti-icing aspect of the jack-up platform. value technology

Images