Pollution Engineering - October 2008 - (Page 43)

Regenerative blowers can optimize pressure and flow for properly sized pneumatics at point-of-use. • Low maintenance. Fewer moving parts reduce wear, tear, maintenance and downtime. Specifically, in comparison to blowers that incorporate sliding vanes, valves and pistons, the only contacting moving parts inside a regenerative blower are two permanently sealed ball bearing assemblies. • Green performance. Regenerative blowers supply clean air, free of oil, excess moisture and other compressor-induced contaminants. They thus do not need to be paired with outlet filters and dryers, nor special water and oil traps. Making the grade With pressures up to 10 PSIG, water aeration applications can function up to 18-foot depths. Most modern regenerative blowers operate within OSHA standards without requiring bulky muffler arrangements. Motors on regenerative blowers are mounted into the housing, eliminating the need for V-belt or coupling drives. Permanently sealed motor bearings – generally lasting 20,000 to 25,000 hours – eliminate the need for oil reserve levels. Thus the motor can function for eight- or 24-hour continuous operations. “ The versatility of regenerative blowers allows for a variety of motor options Regenerative blowers are simplicity in motion. A non-contacting impeller spins within a housing without need for replacement or service. They contain no complex, close-tolerance lobes, timing gears, gears, elaborate oil reserves or multiple-stage bearing systems. Another key advantage for some applications is that no lubricant hydrocarbons leave the blower with the air. With permanently sealed bearings (no oil reserve to maintain), there is no possible oil contamination, allowing cleaned water to quickly exit the system. The versatility of regenerative blowers allows for a variety of motor options, including high-efficiency, variable speed, explosion-proof and totally enclosed, fan cooled models. ” Other considerations Depending on needs and preferences, additional options for regenerative blowers may be appropriate. For example, it may be critical to measure correct airflow to help fine-tune a system for optimized efficiency. An air flowmeter will allow direct readings in SCFM. Basic models can yield accuracy within 2 percent at standard conditions. Meters can even help in trouble-shooting. For systems in which channeling or plugging can occur, a noted diversion in measured CFM may signal an otherwise unseen system change likely requiring attention. OCTOBER2008 www.pollutionengineering.com 43 http://www.auburnsys.com http://www.auburnsys.com http://www.pollutionengineering.com

Table of Contents Feed for the Digital Edition of Pollution Engineering - October 2008

Pollution Engineering - October 2008 Contents The Editor’s Desk EnviroNews PE Events Legal Lookout Green Connections Clearing the Air Water for People There’s a New Show in Town Catching Wind for Clean Water Taking the Pressure off Blower Selection Pulsed Plasma Positive Redundancy Product Focus: Municipal Water Treatment Product Focus: Monitoring Equipment PE Products Classified Marketplace Advertisers Index State Rules

Pollution Engineering - October 2008

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