In order to prevent cavitation in the pump, the vacuum dryer is usually located above the host machine, usually on the higher floor of the building, in order to retain the positive pressure tip.

Reduce energy and cooling water consumption

By using highly efficient components such as screw pumps and plate heat exchangers instead of gear pumps and shell and tube coolers, the energy consumption of oil lubricated units can be reduced. However, cost savings can be achieved by reducing unnecessary pumping capacity.

If the oil pressure of the system is adjusted by using a frequency converter (variable speed AC drive) to regulate the speed of the pump, the pump unit will operate with its energy consumption, thereby providing the exact amount of oil needed for dry thin oil lubrication.

The system increases the life of the oil, which is another important aspect of the installation. Kataja confirms that the oil is in good condition due to its low water content, and acknowledges that this enables the machine to operate over longer change intervals of 5 to 10 years, and increases bearing life and performance. Paper machine.

The resulting economic benefits prompted the mill to purchase an additional storage tank for Paper Machine 6.

Excellent system control

Traditionally, the oil circulation system 2 is controlled by a combination of manual monitoring and alarm-based automatic operation. However, as the scale of the system increases, the task of optical monitoring using manual controls becomes more complex.

As a result, a series of accompanying system control devices have been developed to complement the new tank design.