Combined type ocean platform swinging reduction system and method

Abstract

The invention provides a combined type ocean platform swinging reduction system, which comprises a platform, double-curved surface swinging reduction fins, a hydraulic device, a conveying pipeline anda control unit, wherein swinging reduction water cabins are respectively arranged at the left side and the right side in the platform; the double-curved surface swinging reduction fins are arranged at the two outer sides of the platform; the midpoint of the double-curved surface swinging reduction fins is connected with the outer wall of the platform through a rotating shaft; the hydraulic devicecomprises hydraulic cylinders which are arranged at two sides in the platform and are communicated with the swinging reduction water cabins in a watertight way; the hydraulic cylinders are divided into an upper hydraulic cylinder and a lower hydraulic cylinder which are vertically symmetrical by using a longitudinal center line as the boundary; the upper and lower hydraulic cylinders are respectively connected with two curved surface fins of the double-curved surface swinging reduction fins through push rods; the conveying pipeline is used for communicating with the swinging reduction water cabins arranged at the left and right side in the platform in a watertight way; a controller is used for performing data modification on inclination information collected by a position sensor accordingto the result measured by a water flowing pressure sensor, calculating the regulation water quantity according to the final platform inclination data, and controlling a water pump positioned in the conveying pipeline for regulation. The combined type ocean platform swinging reduction system has the advantages that the double-curved surface swinging reduction fins are combined with the hydraulic device for swinging reduction of a zero-navigational speed ocean platform; and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a composite offshore platform anti-rolling system and method. Background technique [0002] The two types of anti-rolling structures that are most used in the field of ocean engineering and marine vehicles and have the best anti-rolling effect are anti-rolling tanks and anti-rolling fins. The working principle of the anti-rolling water tank is to use the water level difference generated by the water in the tank on the left and right sides to form a moment to balance the ship or offshore platform, so as to resist the moment of waves on the offshore platform or ship and reduce the roll amplitude; The fin stabilizer is a device with a wing-shaped cross-section, which is installed in the bilge of the two sides of the ship. The fin stabilizer is rotated by the operating mechanism to make the water flow act on it, thereby forming the stabilizer moment. See small horizontal ...

AI Technical Summary

Problems solved by technology

In the Chinese invention patent specification CN104309778A, a combined control type controllable passive anti-rolling water tank device is disclosed. Although this device has improved the problem of the short rolling cycle of ordinary anti-rolling water tanks, it still needs to consume a lot of energy. ; In the Chinese invention patent specification CN104309778A, a curved surface adjustable fin stabilizer is disclosed. This fin stabilizer has also improved the anti-roll performance at low speeds, but it needs to provide energy to make it move actively, and it is not applicable Operating ships and offshore platforms at sailing speeds

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