Gas circulation and recirculation
With oil-free, highly compact and modular turbo compressor systems and without large and expensive auxiliary units
- Oil-free, contamination-free compression and recovery
- Noble and inert gases and many other gases
- Minimal footprint
- Modular connection in series or parallel
Closed-loop circulation and recirculation of noble gases and inert gases at low pressure is used for a variety of industrial processes, e.g. for cooling of sensitive devices with helium in physical experiments or for detectors, semiconductor production equipment, additive manufacturing, metal welding, laser cutting, gas detection in leak testing, heat treatment of metal parts or in laser sources. These applications involve large differences in the required pressure ratios and mass flows. The state of the art in addressing this issue is the use of oversized compressors in terms of pressure and flow. Often the compressor is combined with a pressure vessel using pressure and flow reducers to achieve the reduced level required. In addition to wasting valuable energy contained in the compressed gas, the cooling system also needs to be oversized, which again increases energy requirements, installation space and equipment costs. Separate buildings are often required to accommodate standard compressors and their auxiliary units, as oil separators and large heat exchangers may also be required depending on the compressor technology. This solution is generally unsatisfactory but justifiable, given that a custom compressor system would be even more expensive.
The use of turbo compressors in a modular configuration for the recirculation, recovery and transport of helium, argon, xenon, neon or any other noble gas solves these problems. Gas bearing technology enables fully contamination-free operation without the need for an oil separator. In a modular concept, the required pressure and mass flow is achieved by compressor units installed in series or in parallel. This approach reduces energy consumption, assembly area, noise emissions, installation scope and costs for your facility. The compressor’s sealing concept minimizes contact of the process gas with wetted materials inside the compressor and delivers its function without any need for rotating seals. This allows the compressor to be operated even with heavy hydrogen, pure oxygen or reactive and aggressive gases. The gas-tight compressors in their pressure-proof design are also suitable for recovery and extraction of aggressive gases.