The process of dry-docking describes when a vessel is required to the service lawn and brought to dry land to make sure that submerged portions of the hull can be cleaned up and also examined. This job is both preventative along with a regulatory requirement within the sector. When pre-owned purchased vessels schedule for dry-docking, they are rebranded and examined to satisfy all Teekay criteria.
At Teekay, vessels are arranged for dry-docking as soon as every five years, with intermediate surveys occurring in between. Once the vessels are put back right into service, they are much more environmentally friendly and also fuel-efficient. At its core, the procedure of Lay Up Labuan has to do with our dedication to Operational Leadership and also our pledge to run the best ships in the sector.
If the world of dry-docking had one moto, it would be “plan, strategy, strategy and also prepare some more.”
In 2015, the Teekay Tankers team completed the largest dry-docking program to day, successfully refining 17 vessels over the course of 382 days of service time. The procedure itself calls for mindful preparation and also preparation. Every minute information requires to be considered when carrying out a major job such as the dry-docking of a vessel– and also even more so when trying to collaborate 17 of them in a year
Arrival at Backyard as well as Going Into the Lay Up Labuan
After completing all necessary primary job, the vessel gets to the shipyard. On completion of port formalities, the vessel proceeds to the dry-dock with assistance from tug boats as well as shipyard personnel. Prior to this, the blocks are prepared by the shipyards based on each vessel’s certain docking plan.
Pumping Down the Dock and also Vessel “Taking” the Blocks
The water is drained from the Lay Up Labuan (generally over night) over the course of about 8 to 10 hours, relying on the size of the vessel. Before the vessel is hinged on the block, specialized dive groups make certain the block frameworks are in the proper place.
Varying the Cables
The cable televisions (or support chains) are ranged on the dock base once the dock is completely dry. Anchors and also cords are then evaluated as well as measured to determine the quality/ problem and defective components are fixed or changed as called for.
The hull paint includes cleaning, blasting as well as painting of the vessel as well as is one of the main reasons for dry-docking, as it guarantees reliable vessel procedures for the next 5 years. After prolonged periods of sailing as well as service, it is not unusual for aquatic development such as algae or slime to accumulate on the sides of the vessel. This buildup has a straight impact on the effectiveness of the vessel and eventually results in greater fuel intake.
Shipyard employees use (fresh water) high-pressure washers to eliminate marine growth and also chlorides from the ship side.
Blasting is done mainly to get rid of rust or faulty paint from the ship side. Depending upon the demand of each vessel, blasting may be localized or executed along the whole side of the vessel. In this process, old paint in the malfunctioning areas is eliminated totally to subject the bare steel.
When the blasting is completed, the whole vessel is cleansed as well as repainted to shield the integrity of the steel as well as stop future rust. The undersea side is painted with anti-fouling paint to avoid aquatic growth and guarantees vessel runs near its original design speed and also gas usage.
Opening Sea Chests and Overhaul of Sea Valves
The sea upper body is a recess in the hull of the ship that provides intake of sea water for the cooling systems in the engine space. This area is opened during the dry-docking procedure for cleansing, inspecting and also painting. At the same time, all ship-side sea valves are examined as well as upgraded as called for.
Necessary Fixes and also Maintenance
During this duration, groups seize the day to carry our maintenance deal with engines, pumps, containers and cargo areas as needed. Repairs on the tail, prop or shafting are made if any issues are determined.
Flooding the Dock
After all planned job has actually been sufficiently finished, the dock is flooded and planned for the vessel’s separation.
Departure as well as Tests
The vessel is pulled out of the dry-dock with the help of tugs and shipyard workers. As soon as the vessel gets to a risk-free anchorage location, sea trails are accomplished to verify the procedure of all ship’s machinery. On completion of sea tests, the vessel is appointed back into service.
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