公开(公告)号：EP2081663B1

公开(公告)日：2016-03-09

申请号：EP07864058.8

申请日：2007-11-07

申请人： Semco, LLC

发明人： FISCHER, John C. ,  BOLES, Michael L. ,  MITCHELL, Richard K.

IPC分类号： F24F11/00 ,  F24F3/14

CPC分类号： F24F3/1423 ,  F24F11/77 ,  F24F2110/40 ,  F24F2203/1004 ,  F24F2203/1032 ,  F24F2203/104 ,  F24F2203/1068 ,  F24F2203/1088 ,  F24F2203/1096

摘要： Control systems for recovery wheels, ventilation systems with recovery devices, buildings having ventilation, and methods of controlling recovery wheels and controlling or modifying ventilation systems. A parameter of ventilation systems or recovery devices, such as the speed of a recovery wheel, may be controlled as a function of pressure, differential pressure, flow rate, or fan speed, for example, to provide appropriate purge flow to maintain purge effectiveness and limit the carry-over of contaminants from a return/exhaust airstream to an outside/supply airstream, for instance, in a variable air-volume system. A purge angle may be set at a minimum position commensurate with a maximum flow rate and recovery-wheel speed may be reduced at lower flows to maintain purge effectiveness. In some embodiments, temperature and humidity are measured, and wheel speed is also controlled as a function of these measurements. Systems may utilize sensors, input devices, digital controllers, variable-speed drives, and alarms.