What is Dry-docking as well as why do we do it?
The procedure of dry-docking refers to when a vessel is required to the service lawn as well as brought to dry land to ensure that submerged parts of the hull can be cleaned up and examined. This job is both preventative in addition to a governing demand within the industry. When used acquired vessels are due for dry-docking, they are rebranded as well as analyzed to satisfy all Teekay requirements.
At Teekay, vessels are set up for dry-docking as soon as every 5 years, with intermediate surveys happening in between. When the vessels are put back into solution, they are a lot more eco-friendly and fuel-efficient. At its core, the procedure of dry-docking is about our dedication to Functional Leadership and also our promise to run the most effective Shipyard In Malaysia in the industry.
If the world of dry-docking had one moto, it would be “strategy, strategy, strategy and also prepare some even more.”
In 2015, the Teekay Tankers group completed the largest dry-docking program to day, successfully refining 17 vessels throughout 382 days of service time. The procedure itself requires cautious preparation and preparation. Every min detail requires to be taken into consideration when undertaking a major job such as the dry-docking of a vessel– and even more so when attempting to collaborate 17 of them in a year.
So what does the actual dry-docking procedure entail? Let’s look:
Arrival at Lawn as well as Going Into the Dry-dock
After finishing all necessary primary work, the vessel arrives at the shipyard. On conclusion of port rules, the vessel continues to the dry-dock with help from yank watercrafts and shipyard workers. Before this, the blocks are arranged by the Shipyard In Malaysia as per each vessel’s details docking plan.
Pumping Down the Dock and Vessel “Taking” the Blocks
The water is drained pipes from the dry-dock (usually over night) over the course of regarding 8 to ten hours, depending on the size of the vessel. Before the vessel is hinged on the block, specialized dive groups make certain the block frameworks remain in the appropriate place.
Ranging the Cables
The cable televisions (or anchor chains) are ranged on the dock bottom once the dock is completely dry. Supports as well as cords are then checked as well as determined to identify the high quality/ condition and faulty components are repaired or changed as required.
The hull painting contains washing, blasting and paint of the vessel as well as is among the primary reasons for dry-docking, as it ensures efficient vessel operations for the following five years. After prolonged periods of sailing and also solution, it is not uncommon for aquatic growth such as algae or scum to accumulate on the sides of the vessel. This buildup has a direct influence on the performance of the vessel as well as eventually brings about greater gas consumption.
Shipyard In Malaysia employees use (fresh water) high-pressure washers to remove marine development and also chlorides from the ship side.
Blasting is done largely to get rid of rust or malfunctioning paint from the ship side. Depending upon the requirement of each vessel, blasting may be localized or accomplished along the whole side of the vessel. In this process, old paint in the malfunctioning areas is removed totally to reveal the bare steel.
When the blasting is finished, the whole vessel is cleansed and painted to secure the integrity of the steel and avoid future rust. The undersea side is repainted with anti-fouling paint to avoid marine development as well as guarantees vessel operates close to its initial layout speed and fuel consumption.
Opening Sea Chests as well as Overhaul of Sea Valves
The sea chest is a recess in the hull of the ship that offers intake of sea water for the cooling systems in the engine space. This location is opened during the dry-docking process for cleansing, evaluating and also paint. At the same time, all ship-side sea valves are examined as well as upgraded as needed.
Required Services and also Maintenance
During this duration, teams take the opportunity to bring our maintenance work on engines, pumps, tanks and also cargo areas as required. Repair services on the tail, prop or shafting are made if any issues are determined.
Swamping the Dock
Besides prepared job has actually been satisfactorily finished, the dock is flooded and gotten ready for the vessel’s departure.
Separation as well as Tests
The vessel is towed out of the dry-dock with the help of yanks and also shipyard employees. When the vessel reaches a risk-free anchorage location, sea trails are carried out to confirm the operation of all ship’s machinery. On conclusion of sea trials, the vessel is appointed back into solution.
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