Buoy three-anchor mooring device and arrangement recycling method thereof

Abstract

The invention relates to a buoy three-anchored mooring gear and a deployment recovery method thereof, the mooring gear comprise buoys and three sets of uniform distributed bower anchor systems and is characterized in that the mooring gear further comprises three buoyancy pontoons which are respectively connected with the three sets of bower anchor systems and a segment of back anchor system which is connected with the three corresponding buoyancy pontoons, and the mooring gear reaches above the buoys by connecting shackles and the other segment of back anchor system. The deployment and recovery method includes that: firstly the buoyancy pontoons are connected with the bower anchor systems, each set of buoyancy pontoons and bower anchor systems are deployed at the expected deployment spot via 120 degrees by employing work boats, the buoys are pulled to the central position of the three sets of buoyancy pontoons and bower anchor systems, then the back anchors are docked by using connecting shackles, and the deployment of underwater instruments can be started; In the time of recovery, firstly the shackles are taken off to separate the back anchor systems, then the buoys, the underwater instruments, the recycling buoyancy pontoons and the bower anchor systems are respectively recovered. The invention executes the complex project step by step, requirements on the work boats are largely reduced, and the invention has the advantages of simple operation and precise deployment, and the problem of the entrapping of cables and anchor chains is comparatively eliminated.

Description

technical field [0001] The invention relates to a mooring structure for a buoy and a method for deploying and recovering the buoy three-anchor mooring device and a method for deploying and recovering the same. Background technique [0002] At present, most of the anchorages of large ocean buoys in my country adopt single anchor mooring. When there is a bottom-mounted instrument underwater and a cable is connected to the surface buoy, since the surface buoy rotates freely, the cable is easily entangled with the anchor chain, causing the cable to break. At this time, a three-anchor system is required, that is, three sets of anchor systems are evenly distributed at 120 degrees, and the anchor system is connected to the buoy at the side. , to protect the cable. However, it is necessary to connect three sets of mooring systems with buoys to deploy this structure, which requires a large deck operation area and can only be completed at one time. A certain type of 10-meter buoy i...

AI Technical Summary

Problems solved by technology

After the system worked for two months, the anchor chain became entangled with the cable causing the cable to break

The reason is that after the deployment of the first set of mooring systems, the mooring system exerted force on the ship through the buoy, which limited the maneuverability of the ship, resulting in a deviation between the deployment point of the second set of mooring systems and the expected deployment point. , after the deployment of the second set of mooring systems, the force exerted by the two sets of mooring systems on the ship is greater, resulting in a greater deviation between the deployment point of the third set of mooring systems and the expected deployment point

In this way, when the sea conditions are bad, the mooring system and the cable are often entangled together, causing the cable to break.

This not only wastes a lot of manpower and material resources, but also often makes the whole project come to a standstill.

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