As part of a recent contract, GRASYS has supplied two nitrogen stations for OJSC HK SDS-Ugol. The nitrogen produced with GRASYS gas separation systems is used for the prevention of endogenous fires on two mines run by OJSC HK SDS-Ugol.
The capacity of each nitrogen station supplied is 1000 cubic meters of 97% nitrogen per hour. The supplied nitrogen stations operate on the basis of the up-to-date membrane technology of air separation.
The key assembly units of the supplied GRASYS nitrogen stations are the compressor unit, air treatment unit, gas separation unit and the control system.
GRASYS nitrogen stations are the most accomplished and reliable nitrogen production systems among those currently offered in the market. Due to the use of advanced design developments, the nitrogen stations are both compact and highly efficient, as well as reliable and simple in maintenance and operation. The stations operating temperature range is -50 °C to +50 °C.
Due to the adoption of the latest developments, GRASYS nitrogen stations have a number of advantages:
- full automation due to the use of a highly sophisticated GRASYS Intelligent Control-7 system;
- opportunity for flexible adjustment of the produced nitrogen purity;
- high reliability with the up to 180,000 operational life of the membrane unit;
- use of highly reliable compressor equipment of the world leading manufacturers.
The advanced intelligent control system GRASYS Intelligent Control-7 used only on equipment bearing the GRASYS brand provides the opportunity for efficient automatic, manual and remote control of process parameters with the archiving option. The use of the automatic startup system in the gas separation unit helps to improve reliability of the gas separation unit. GRASYS Intelligent Control-7 operates in various industrial networks, including Internet.
GRASYS Intelligent Control-7:
- identifies malfunctions and accidents, provides necessary interlocks;
- has the self-diagnostics system;
- enables the operator to individually control the station assembly units, thus increasing the flexibility of its operation.