All about hydraulic air compressors for marine applications

tecnoter — Wed, 31 May 2023 09:38:59 +0000

Hydraulic air compressors are extremely important aids on ships because they allow the operation of many main and service systems.

Basics of air compressors for marine applications

The main purpose of the compressor, as the name suggests, is to compress the air or any fluid to reduce its volume according to the principles of thermodynamics. This equipment consists of an air cylinder that can store compressed air at a specified pressure.
It is used for the production of compressed air useful for various purposes on board: from allowing the correct functioning of the essential equipment and those supplying various systems, or to allow the performance of a series of processes ranging from simple cleaning of the filters to larger and more crucial ones such as starting the main engine and maintaining both the engine and deck departments.
For these reasons, the presence of air compressors on ships is practically a must.
Generally two types of compressors are used on ships:
– the main air compressor, which generates high pressure (usually from a minimum of 30 bar) and is used to drive the main engine
– the service air compressor, which produces low pressure (7 bar) and is used for control and minor tasks

Uses of compressed air in marine applications

As mentioned earlier, the compressed air produced by air compressors is used for a variety of purposes on ships, ranging from starting the main engine, to cleaning and maintenance. While the specific uses may differ from ship to ship, the main daily uses of a ship air compressor are:
– starting the main engine, the auxiliary engine
– starting the emergency generator and the emergency fire pump
– operation of pneumatic tools and machinery intended for cleaning with a pressurized water jet or similar
– lifeboat movement management
– supply water to the living quarters and various parts of the ship
– in portable pneumatic pumps for the transfer of oil, water and bilge
– pressurized spray painting
– operation of the fog horns
– movement of the ship’s maneuvering system propellers
– regulation of the operation of the control valves of the accelerator controls and other monitoring systems

To add other key uses of air compressors on ships, feel free to contact us here.

Rely on robust marine solutions: Tecnoter air compressors

The proper functioning of systems on board a ship is crucial. Support at sea in the event of an unexpected event may be limited and it is essential that the instruments function even in difficult conditions.
For all marine and offshore applications, regardless of harsh conditions, you can rely on Tecnoter’s robust and energy-efficient compressed air solutions.
Tecnoter’s ultimate goal is to provide customers with air compressors that meet their needs on board ships and offer a reduced cost of ownership and maintenance.
For this reason Tecnoter hydraulic air compressors for marine applications are silent and practically maintenance-free, but extremely robust and able to operate in situations where the workload is heavy.
In fact, they are also chosen tools in underwater demolitions because they save the equipment from the risk of breakdowns and wear, as described in this article.

Discover the whole range on the Tecnoter Group website or contact us to find out more.

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Hydraulic compressors in underwater demolition: how they save your equipment

tecnoter — Fri, 02 Jul 2021 15:12:25 +0000

Air compressors are popular equipment for anyone with construction experience. The particular hydraulic air compressors, less known but far safer and more useful, are designed for work in severe conditions, such as those under water.

Operations under "normal" conditions

To carry out excavation and demolition of buildings or other structures, demolition hammers are used.
The demolition hammer for excavators is essentially a hydraulic motor in which a large and heavy metal cylinder (called striking mass) is set in alternating rectilinear motion in order to repeatedly hit the tool (called tip) of the hammer itself.
During the contact between the impacting mass and the tool, the large amount of energy produced by the demolition hammer is transferred from the impacting mass to the tip (tool) and, from it, to the material to be demolished.
In order for this to happen, a compensation chamber, saturated with air, must always be present between the striking mass and the tip.
This does not involve any problems in use in “normal” conditions, or in the presence of air for the equipment.

Operations in submerged conditions

The situation is different for the construction and maintenance operations of ports and cliffs, where the excavator operator often needs to use hydraulic breakers in submerged conditions, i.e. underwater. In this condition, in fact, the compensation chamber tends to fill with water which, being incompressible, blocks the motion of the striking mass, preventing the correct transfer of energy to the tip.
This condition, in addition to preventing the hammer from functioning, causes serious damage to it.

Compressors and their contraindications

To avoid the inevitable damage to the demolition hammer, it is necessary to connect an air compressor to the hammer in order to create a sort of air bell in the compensation chamber.
Generally, classic compressors are used which, however, have several contraindications:
– they are separated from the excavator, so every movement of the excavator itself becomes difficult and leads to the waste of many hours of work
– they are bulky and noisy
– they are expensive both in terms of purchase and maintenance
Last but not least, they are also dangerous for the hammer itself because, if the motor compressor in operation were to shut down due to a fault or if a hose were to break (for example due to a sudden movement of the excavator), the hammer would strike without air with the only consequence of being damaged, even irreparably.

Hydraulic air compressors save your equipment

Hydraulic air compressors compensate for all the contraindications of classic compressors.
Installing a hydraulic air compressor on board the machine, in fact, not only allows you to solve problems of size and costs, but also allows you to immediately and automatically stop the operation of the hammer should any anomaly in the air flow occur. Thus combining greater safety and greater productivity (reducing costs).

Tecnoter hydraulic air compressors

Tecnoter wants to help you avoid all problems that can slow down your work or endanger you and your operators.

It wants to help you in choosing the right air compressor with hydraulic motor, because it designs versions that are compatible with different needs and applications.

Highly safe and stable, they are designed according to the most advanced technologies. Contact us here to find out more

The post Hydraulic compressors in underwater demolition: how they save your equipment first appeared on Tecnoter Group | Attrezzature per escavatori e pale.

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