Reference SINZIGER MINERALBRUNNEN

PROJECT/REQUIREMENTS

The existing installation, which used to supply compressed air by means of oil-lubricated compressors, no longer met the current requirements of the IFS despite the complex air treatment technology. RENNER's project department was confronted with the challenge of installing a system that would supply clean, oil-free compressed air in a reliable, energy-saving, and sustainable manner. Furthermore, a heat recovery system for heating water is to be integrated.

SOLUTION

After several compressed air consumption measurements and analyses, it was decided to replace the existing system with three oil-free, water-injected compressors. Previous compressors were incorporated as a reserve. The new compressors are from the RSWF series with 1:1 direct drive and speed control. In addition, a heat recovery system was integrated, which is used to increase the return flow. The system is controlled by a superordinate control system for interconnected control and visualization as well as for data filing and coupling to the data network.

IMPROVEMENT

The specially developed solution enables a 100% oil-free compressed air supply, which was funded by BAFA (only Germany). The filtration line could be completely omitted and a pressure reduction of 1 bar could be achieved. In addition, 85% of the power input was recovered and used as heat for the building heating system.