Heatless pressure swing adsorption dryers
A full range of HPS (heatless pressure swing) adsorption dryers for compressed air systems is now available from Hi-line Industries Ltd. These have been designed with simplified ‘plug and play’ installation combining high efficiency with minimum running cost, while also providing reliability based on the latest technological advancements.
The products operate at a pressure range of 7-10 barg (min 4 barg) and are suitable for any commercial/industrial application where high-quality dry air is required.
With the Hi-line HPS range, positively driven ball valves are fitted to provide maximum reliability and longevity. They also incorporate stainless steel pipework and high-quality check valves to ensure continuity of flow without dewpoint spiking or pressure drop. A digital logic controller is fitted, with an optional automatic energy management system (AEMS) also available for dewpoint control.
The dryers do not use any external heat energy source. The desiccant used is a standard activated alumina for a -40°C dewpoint operation (molecular sieve for -70°C dewpoint), which is regenerated by using very dry purging air supply. This is expanded over an orifice plate, which further reduces the dewpoint due to the pressure reduction. This very dry air supply desorbs water from the desiccant, passing through silencers back to the atmosphere. This purge air supply typically uses 12.5% of the dryer capacity.
The dryers operate as standard on a timer, with a normal 10min cycle time between vessel changeovers. This is sufficient to ensure that extracted water does not enter the core of the desiccant material (2.5-4mm diameter spherical material). The optional AEMS control system extends the cycle time to 30min per vessel in low water loading situations.
There are 19 models available in the range, with most sizes available ex-stock. They provide air throughput capacities from 20scfm (34Nm³/h), up to 5,500 scfm (9,350Nm³/h), with all models being skid mounted. Product footprints range from 675mm x 380mm up to 2,900mm x 1,900mm and heights from 1,625mm to 3,000mm. All units can be supplied in a choice of colours, or can be labelled for OEM customers.
Hi-line Industries Ltd, 5 Crown Industrial Estate, Oxford Street, Burton on Trent, Staffs DE14 3PG; tel: (01283) 533377; fax: (01283) 533367; e-mail: enquiries@hilineindustries.com
The products operate at a pressure range of 7-10 barg (min 4 barg) and are suitable for any commercial/industrial application where high-quality dry air is required.
With the Hi-line HPS range, positively driven ball valves are fitted to provide maximum reliability and longevity. They also incorporate stainless steel pipework and high-quality check valves to ensure continuity of flow without dewpoint spiking or pressure drop. A digital logic controller is fitted, with an optional automatic energy management system (AEMS) also available for dewpoint control.
The dryers do not use any external heat energy source. The desiccant used is a standard activated alumina for a -40°C dewpoint operation (molecular sieve for -70°C dewpoint), which is regenerated by using very dry purging air supply. This is expanded over an orifice plate, which further reduces the dewpoint due to the pressure reduction. This very dry air supply desorbs water from the desiccant, passing through silencers back to the atmosphere. This purge air supply typically uses 12.5% of the dryer capacity.
The dryers operate as standard on a timer, with a normal 10min cycle time between vessel changeovers. This is sufficient to ensure that extracted water does not enter the core of the desiccant material (2.5-4mm diameter spherical material). The optional AEMS control system extends the cycle time to 30min per vessel in low water loading situations.
There are 19 models available in the range, with most sizes available ex-stock. They provide air throughput capacities from 20scfm (34Nm³/h), up to 5,500 scfm (9,350Nm³/h), with all models being skid mounted. Product footprints range from 675mm x 380mm up to 2,900mm x 1,900mm and heights from 1,625mm to 3,000mm. All units can be supplied in a choice of colours, or can be labelled for OEM customers.
Hi-line Industries Ltd, 5 Crown Industrial Estate, Oxford Street, Burton on Trent, Staffs DE14 3PG; tel: (01283) 533377; fax: (01283) 533367; e-mail: enquiries@hilineindustries.com
