Zero loss desiccant air dryers

A dewpoint of -70°C can be maintained with these air purification products, while also ensuring a zero loss of any processed compressed-air. Hi-Line says the lowest possible operational and ownership costs are achieved by continually recording the equipment working parameters, and providing feedback to the equipment control unit.

This information is continually processed to achieve a consistent, optimum dryer performance. The use of high quality Rockwall lagging, combined with thermally efficient heaters, ensures that the HPB models generously sized dryer vessels maintain a high proportion of their operational duty in an economic standby mode. Further energy saving features include soft start options and the use of bi-directional fans coupled with built-in data logging functions for the AEMS (Automated Energy Management System) available via USB port extraction. Dial-in modems and Bluetooth facilities are also available.

The AEMS system undertakes continuous data collection from the dryer operation to maintain cost effective optimum timing and utilisation of the drying cycles. This process can be optimised with precise appropriation of low-energy tariffs for selection of heater regeneration cycles. No compressed air is lost or wasted during operation and the system regeneration is achieved by desiccant cooling together with an external heat source and bi-directional blower. Viable heat regeneration sources include electrical, oil, steam and heat of recovery and dual-heat, or whatever source is most locally available.

The range of standard dryers covers 15 models providing throughput capacities from 165 to 5500 scfm. The physical requirements of dryer height and footprint dimensions, as well as alternative software requirements can all be established, even including customer colour choice, during onsite survey.

Siemens PLC control is available as standard with optional Mitsubishi or Allen Bradley systems available on request. Pressure vessels conform to BS EN 5500 and ASME VIII plus PED (Pressure Equipment Directive) 97/23EC. Stainless steel interconnecting pipework and valves are used throughout. Maintenance agreements are also available which automatically extend the product warranty to five years.