Detachable ice-resistant device applicable to offshore nuclear power platform

Abstract

The invention discloses a detachable ice-resistant device applicable to an offshore nuclear power platform. The detachable ice-resistant device applicable to the offshore nuclear power platform comprises an ice-resistant cone and a self-locking device, wherein the ice-resistant cone is formed by two semicircular truncated cones through connection of the large-caliber end surface and is axially divided into two cones, certain side surfaces of the two cones are rotatably connected, and the other side surfaces are locked through the self-locking device; the ice-resistant cone further comprises a columnar cylinder which is connected along the axial direction; the ice-resistant cone sleeves a pile leg to be installed on the offshore platform; the self-locking device comprises a self-locking body and a locking fastener, the self-locking body is arranged on one cone and the locking fastener is arranged on the other cone; the self-locking body realizes the locking ur unlocking between the two cones. The detachable ice-resistant device applicable to the offshore nuclear power platform has the advantages that since the columnar cylinder adopts semicircular cylinder structures to clamp the pile leg and fixing pins are welded inside, smooth positioning is realized during installation of the ice-resistant device; the ice-resistant device can satisfy the need of repetitive installation and removal; the ice-resistant cone can reduce ice load and ice-induced vibration, and can prevent the platform from being damaged by sea ice.

Description

technical field [0001] The invention relates to a detachable anti-icing device suitable for offshore nuclear power platforms, which belongs to the technical field of marine engineering. Background technique [0002] Sea ice is an important factor affecting the design and safe operation of marine structures in high-latitude sea areas. When sea ice interacts with marine structures, it must always be designed so that sea ice is destroyed first. my country's Bohai Sea and northern Yellow Sea experience varying degrees of freezing every year. . At present, the fixed platform jacket in the heavy ice area of ​​the Bohai Sea is usually equipped with a forward-downward cone combination UDBC (Upward-Downward Bending Cone) anti-ice cone on the tidal range section of the leg. When the ice row acts on the cone slope, the ice row will Radial and circumferential cracks are generated, and the ice row is mainly damaged in the bending mode, so the anti-ice cone helps to reduce the ice load an...

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Problems solved by technology

[0003] The anti-icing cones have achieved certain anti-icing effects after being installed and applied on the jacket of the fixed platform in the heavy ice area. This kind of anti-icing cone cannot meet the anti-icing requirements of the movable offshore platform. When the movable platform, including the upper block or lower caisson of the offshore nuclear power platform, moves along the pile leg, it is bound to pass through the tide on the pile leg. At this time, if the fixed anti-icing cone is still used, it will affect the adjustment of the height of the block or caisson

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