What is Dry-docking and why do we do it?
The process of dry-docking describes when a vessel is taken to the solution backyard as well as offered dry land to make sure that submerged parts of the hull can be cleansed and evaluated. This work is both preventative in addition to a regulatory need within the market. When pre-owned purchased vessels are due for dry-docking, they are rebranded and evaluated to fulfill all Teekay requirements.
At Teekay, vessels are scheduled for dry-docking as soon as every 5 years, with intermediate studies happening in between. When the vessels are returned into solution, they are much more environment-friendly as well as fuel-efficient. At its core, the process of dry-docking is about our commitment to Operational Leadership and our pledge to operate the best ships in the sector.
If the world of dry-docking had one moto, it would certainly be “strategy, plan, strategy as well as intend some even more.”
In 2015, the Teekay Tankers team finished the biggest dry-docking program to day, effectively processing 17 vessels throughout 382 days of service time. The process itself needs careful preparation as well as prep work. Every minute information requires to be taken into consideration when carrying out a significant project such as the dry-docking of a vessel– and also a lot more so when attempting to collaborate 17 of them in a year.
Arrival at Backyard as well as Entering the Dry-dock
After completing all essential primary work, the vessel reaches the shipyard. On conclusion of port rules, the vessel continues to the dry-dock with assistance from pull boats and shipyard personnel. Prior to this, the blocks are organized by the shipyards as per each vessel’s specific docking plan.
Pumping Down the Dock and Vessel “Taking” the Blocks
The water is drained pipes from the Ship Lay Up In Labuan (normally over night) over the course of regarding 8 to 10 hours, relying on the size of the vessel. Before the vessel is rested on the block, specialized dive teams make sure the block frameworks remain in the proper place.
Ranging the Cables
The cables (or support chains) are varied on the dock bottom once the dock is dry. Anchors as well as cable televisions are after that evaluated and gauged to identify the high quality/ problem as well as defective components are repaired or changed as needed.
The hull painting contains cleaning, blasting and painting of the vessel as well as is just one of the primary factors for dry-docking, as it guarantees effective vessel procedures for the next 5 years. After expanded periods of cruising as well as service, it is not unusual for marine development such as algae or sludge to accumulate on the sides of the vessel. This buildup has a direct impact on the performance of the vessel and inevitably causes higher gas usage.
Shipyard personnel utilize (fresh water) high-pressure washers to get rid of aquatic growth and also chlorides from the ship side.
Blowing up is done largely to remove corrosion or defective paint from the ship side. Relying on the requirement of each vessel, blowing up may be localized or accomplished along the entire side of the vessel. In this procedure, old paint in the faulty areas is gotten rid of completely to reveal the bare steel.
Once the blasting is completed, the entire vessel is cleansed and also painted to shield the honesty of the steel as well as protect against future rust. The undersea side is painted with anti-fouling paint to stop marine growth and also ensures vessel operates near its initial style rate and fuel usage.
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 room. This area is opened throughout the Ship Lay Up In Labuan procedure for cleansing, checking and paint. At the same time, all ship-side sea valves are checked and revamped as called for.
Necessary Repair Works as well as Maintenance
Throughout this duration, teams take the opportunity to bring our maintenance service engines, pumps, containers and cargo spaces as required. Repair services on the tail, propeller or shafting are made if any problems are identified.
Swamping the Ship Lay Up In Labuan
Besides planned work has been adequately completed, the dock is swamped and also prepared for the vessel’s separation.
Departure as well as Tests
The vessel is pulled out of the dry-dock with the help of yanks and shipyard employees. When the vessel gets to a safe anchorage location, sea routes are performed to confirm the operation of all ship’s equipment. On completion of sea trials, the vessel is appointed back into solution.
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