The compressed air supply needed for the LOX® Nitrogen extraction units is provided by two compressors in order to achieve N+1 redundancy (55 kW/h compressor + 30 kW/h compressor). Backup capacity is provided for by the plant compressed air facilities. The local compressed air facility has been supplied by FX-Prevent and includes Dryers, filters, oil water separator and particle filtering for the produced nitrogen. The compressed air is conditioned to meet ISO 8573-2010-15 / A01-B04-C01 air quality. The HP-PSA Nitrogen generators further reduce the dew point of the produced nitrogen to -70 deg C.
In order to properly monitor the oxygen level in the protected area, FX Prevent also delivered and installed twelve OX Precision Oxygen Sensors in the protected area as well as 5 more OX sensors in the adjacent rooms and the technical room.
These maintenance-free low-drift oxygen sensors use Zirconium-dioxide elements, feature 5 point calibration, are not susceptible to barometric pressure changes and have an industry leading accuracy with a tolerance of just 0,1%;
The system also features 5 LCD displays (with real-time oxygen level reading) mounted next to the doors in adjacent rooms and 1 LCD display (with real-time oxygen level reading) in the technical room.
For optimum monitoring of the system, the LOX® control unit that centralises all the sensors and controls the nitrogen production units will also be integrated to the customers central fire and building management system.
Because of the energy efficiency of our LOX® nitrogen production units and their long life-cycle we are firmly convinced Vandemoortele will achieve the lowest possible total cost of ownership for this system, and we are looking forward to collaborating with them on future projects.