HYDAC FILTER SYSTEMS OXiStop OXS, Инструкция по установке и обслуживанию

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Unit Operating Principle
OXiStop OXS
en
Page 31 / 108
MoWa OXS 3992763e en-us 2018-08-10.docx 2018-08-10
Unit Operating Principle
After the OLF 5 bypass flow filtration unit (2.1) has been switched on, the
fluid is pumped from the tank to degassing and dewatering unit (3.1) via the
valve and connection block (4.1) and the fluid filter.
In degassing and dewatering unit (3.1) the fluid surface is used as a hydraulic
piston to create a vacuum and thus remove gases and solid matter from the
fluid.
The gas and water that is removed from the oil is conveyed to the diaphragm
via the pipe system and then released to the atmosphere as water vapor via
breather filter (6.4).
When the unit is started up, degassing and dewatering unit (3.1) also
removes the air remaining in the tank above the oil surface and raises the oil
until it is underneath the tank cover.
Integrated diaphragm (6.1) rests on the oil like a protective skin in the tank,
preventing the oil from making direct contact with the environmental air
regardless of the oil level.
The interior of the diaphragm is ventilated through the breather filter.
Atmospheric pressure in the interior of the diaphragm is
≈ 1 bar absolute.
A slight drop in pressure ensues on the oil side, based on the difference in
height between the diaphragm floor and the cover plate. This pressure
difference is purely the result of the geodesic height of the raised oil level.
The result of this is that the outer side of the diaphragm now adheres or
sticks completely to the diaphragm cage.