Superlative hydrogen compression: higher differential pressure with only one stage New oil-free screw compressor from AERZEN for efficient compression of electrolysis hydrogen 24/08/2022 With the VRW536M, AERZEN is further expanding its portfolio of screw compressors for hydrogen compression. The design and water injection of the innovative compressor stage allow the highest differential pressure to date in a single-stage oil-free screw compressor in the competitive environment. The result: minimal footprint and significantly reduced investment and operating costs. Bringing large H2 volume flows to intermediate and final pressures with fewer compressor stages without having to set up largest reciprocating compressor systems - this is exactly where the new oil-free VRW536M screw compressor from AERZEN comes in. Compression is based on the principle of oil-flooded screw compressors - with a small but subtle difference: the oil was replaced by water. The water serves both to cool the gas and to seal the internal gaps, enabling compression to higher differential pressures with highest efficiency. This stage can, thus, replace a two-stage system with classic dry screw compressors and is even more energy-efficient. For the customer, this results in significant advantages in terms of installation space as well as investment and operating costs. Thoughtful down to the smallest detail The VRW536M is designed for an operating pressure of up to 10.0 bar (abs.) and a volume flow of up to 6,000 Nm3/h at 50 Hz. The volume flow is controlled by means of a frequency inverter (speed control), the maximum speed change is 1 Hz/s. Pre-drying of the humid H2 gas is not necessary. Double-acting, water-purged mechanical seals on the conveying chamber ensure 100% oil-free operation. The use of stainless steel on cylinders and rotors guarantees longevity and flexible shutdowns under pressure with humid gas. The synchronisation of the rotors is realised via a pair of gear wheels to avoid contact of the rotors. In this way, the conveying chambers remain unlubricated and there is no oil contamination of the conveying medium. The VRW536M is available both with and without gearbox (directly driven). Wide range of applications The new package was specially developed for the efficient and safe compression of hydrogen, but is also ideally suited for other critical applications, such as flare gas or contaminated gases. In principle, the VRW536M can be ideally used as a pre-compressor (booster) for subsequent compressor technologies. The scope of delivery includes the customer-specific package with auxiliaries, the drive train, the instrumentation (optionally with machine monitoring), and on request also the complete control system and the acoustic hood. Download PiPI_VRW536MPI_Prozessbasverdichter_VRW536M_EN.pdfDownlaod Image (print)VRW536MAERZEN_VRW536M.jpgAERZEN_VRW536M_2_1_.jpgAERZEN_VRW536M_3_1_.jpg
08/04/2019 - New size for E-Compressors The successful screw compressor generation Delta Screw from AERZEN gets an addition: With the VM 100 compressor package, the versatile E-Compressor series now comprises seven model variants. Its distinguishing features: the efficient technology for use in the upper volume flow range and the... read more
04/04/2019 - Compressed air as tailor-made suit! AERZEN pushes customised engineering. If the combination of the standard construction kit does not fit properly, then, the tailor-made suit is called for. Individually designed compressed air solutions are the focus of AERZEN at COMVAC. In Hanover, a signpost for the specialisation, out of product standard, was the two-stage AERZEN... read more
01/04/2019 - Integrated Industry - Manage your process air with cleverness Digitisation is a central feature of industrial development. The Hanover Fair, for example, will for the second time have the motto "Integrated Industry". The solution competence of AERZEN shows how the intelligent networking of man and machine in compressor technology can look like. read more
