What is ballast pumps?
What is ballast pumps?
Ballast pumps are crucial for the operation of most vessels. They pump water in and out of the ballast water tanks during loading, off-loading and trim of the vessel. The pumps often require low NPSHr and high flow. Pressure can be increased if a Ballast Water Treatment System is installed.
What type of pump is a ballast pump?
Ship ballast pump is most usually centrifugal pump. Because they can satisfy these needs most effectively. These ballast pumps often require low NPSHr and high flow. Pressure can be increased; if a ballast water treatment system is installed.
What is ballast line?
: the water line of a ship in ballast.
What is the purpose of ballast?
In a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps. Without a ballast to limit its current, a fluorescent lamp connected directly to a high voltage power source would rapidly and uncontrollably increase its current draw.
What is ballasting and deballasting?
Ballasting or de-ballasting is a process by which sea water is taken in and out of the ship when the ship is at the port or at the sea. Ballast tanks are constructed in ships with piping system and high capacity ballast pumps to carry out the operation.
What is in ballast water?
Ballast water discharge typically contains a variety of biological materials, including plants, animals, viruses and bacteria. There are hundreds of organisms carried in ballast water that cause ecological effects outside their natural environment.
What is ballast condition?
For example, a crude oil tanker or iron ore carrier typically transports a single cargo load between two ports, then returns to its point of origin or another port without cargo. In this empty condition the vessel requires ballast to operate safely—a condition referred to as being “in ballast.”
How do you pump out a ballast?
Stripping the ballast involves using the fire pump. Lining up the valves and pipes is important so that water from the fire line goes to the ejector, which is also connected to the ballast tanks. The ejector creates a vacuum on the pipeline thereby “sucking” the remaining water in the tank.
What does gas ballast mean in vacuum pump?
Means through which air or another non-condensing gas is admitted into a vacuum pump are referred to as gas ballast.
How are ballast pumps used in a ship?
High capacity ballast pumps are normally used to load or discharge the bulk of seawater. However, these pumps are not efficient in pumping out the few remaining ballast water inside the tank. This is where the ballast stripping system comes in.
How are ballast tanks connected to each other?
The ballast tanks are segregated of each other and connected by pipes and valves. They are only meant to carry ballast water and nothing else, hence they are also called Segregated Ballast Tanks (SBT). The piping system connects the tanks, the ballast pumps and other peripherals.
Can a vacuum pump be used without ballast?