Cofferdam type hydraulic anti-impact and ice-resistant device for marine nuclear power platform

Abstract

The invention discloses a cofferdam type hydraulic anti-impact and ice-resistant device for a marine nuclear power platform. The device comprises a cofferdam frame consisting of an upper cofferdam frame and a lower cofferdam frame, which are connected with each other, wherein the upper cofferdam frame is perpendicularly arranged around an upper block of the platform, and the lower cofferdam frame is obliquely arranged on the lower part of the upper block; each split ice-resistant cone comprises at least two cone bodies; the split ice-resistant cones are arranged on pile legs of the platform in a sleeving way, and gaps are formed between the split ice-resistant cones and the pile legs; the upper end parts of the split ice-resistant cones are connected with the lower cofferdam frame; a hydraulic system is arranged on the upper block, and hydraulic cylinders of the hydraulic system are connected with the cofferdam frame; a self-locking body can be used for locking the cofferdam frame and the upper block. The device has the advantages that the requirements of nuclear island impact prevention, ship supporting and the like of the platform can be met by the cofferdam frame; the split ice-resistant cones are used for reducing the impact of ice bodies on the platform, and can realize a free lifting function to meet the block or caisson height regulation requirement of the marine nuclear power platform.

Description

technical field [0001] The invention relates to a cofferdam type hydraulic anti-collision anti-icing device for an offshore nuclear power platform, which belongs to the technical field of ocean engineering. Background technique [0002] In order to solve the damage caused by the collision of drift ice, icing, ice skating, etc. in low cold and heavy ice sea areas such as the Bohai Sea and the northern Yellow Sea to the offshore platform structures, as well as the fatigue damage and vibration of the platform structures caused by ice-induced vibration, At present, various forms of anti-ice cones have been researched, designed and manufactured successively at home and abroad, such as fixed single-leg anti-ice cones, fixed four-leg anti-ice cones and fixed six-leg anti-ice cones. Reduce the impact of ice on the platform, use the anti-ice cone to decompose or disperse the impact of skating and drift ice on the platform. However, all kinds of anti-icing cones designed are fixed. T...

AI Technical Summary

Problems solved by technology

[0003] When the offshore nuclear power platform is located in or adjacent to the navigable sea area, the nuclear power platform and its supporting facilities will inevitably interact with the navigable environment. Once a nuclear island or caisson collision accident occurs, it will directly affect the normal operation of the nuclear power system. The safe operation of nuclear power platforms poses a direct threat

Although with the development of science and technology, the level of ship manufacturing, and the level of safety supervision and management, at the same time, the trend of large-scale and fast ships in navigable sea areas is obvious, and the increasing number of ships increases the probability of them hitting the nuclear island of the nuclear power platform. Big

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