Ship positioning anchor system

Abstract

The invention relates to a ship positioning anchor system, and belongs to the technical field of ship positioning anchors. Four-anchor positioning is adopted for the ship positioning anchor system. The ship positioning anchor system is characterized in that a bow and a stern are both provided with an upper-layer deck and a lower-layer deck, and the upper-layer decks are exposed decks for engineering work; positioning winches are arranged on the lower-layer decks; steel wire ropes pass through vertical fair-leads (2) after being led out through the positioning winches, the direction of the steel wire ropes is changed into the vertically upward direction, the steel wire ropes penetrate through the upper-layer decks to enter deck houses (11) specially arranged on the upper-layer decks, the direction of the steel wire ropes is changed into the horizontally backward direction through vertical fair-leads (2) at the tops of the deck houses (11), the steel wire ropes penetrate through rotary fair-leads (4), and the tail ends of the steel wire ropes are connected with positioning anchors (10); the rotary fair-leads (4) are arranged at the top end of the side wall of a hull.

Description

technical field [0001] The invention relates to a ship positioning anchor system, which belongs to the technical field of ship positioning anchors. Background technique [0002] When marine engineering ships are operating at sea, many operations require the ship to keep the ship's position unchanged, such as drilling operations, diving operations, hoisting operations, etc. There are two ways of positioning in shallow water, namely anchoring positioning and dynamic positioning. Assessed from the economic point of view, mooring positioning is less costly than dynamic positioning. But it takes a long time to carry out the anchor operation, [0003] When the positioning anchor system is arranged, it often has a greater impact on the ship's arrangement. As far as the commonly used four-anchor positioning is concerned, there are two ways to arrange the stern windlass. One is to arrange on the main deck. The deck area is at a premium. The other is arranged under the main deck....

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a technical solution to solve the above technical problems, which does not occupy the effective area of ​​the main deck, and can overcome such problems as: the inconvenient wire rope exit; the positioning anchor cabin is easy to enter water, which is easy to cause equipment damage; The watertight positioning anchor engine room needs to be separated separately, and the buoyancy cannot be included according to the regulations, which reduces the stability of the ship; the location of the anchor frame is very low, causing the positioning anchor to be buried in the water, resulting in technical problems such as increased resistance of the ship

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