Pressure gradient control system

Details Pressure gradient control system Pressure gradient control system

G - Physics

05

D

G05D 16/00 (2006.01) B05B 15/12 (2006.01) F24F 7/08 (2006.01) F24F 11/02 (2006.01) G05D 16/20 (2006.01)

Patent

CA 2073136

A pressure gradient control system includes a ventilated area divided unto a plurality of intercommunicating zones, a zone-to-zone pressure gradient detecting device for detecting pressure gradients between adjacent zones, a control unit for adjusting quantities of air supply or exhaust to/from the zones based on detection information received from the zone-to-zone pressure gradient detecting device to establish a predetermined pressure gradient between adjacent zones, and an interior-ambient pressure gradient detecting device for detecting pressure gradients between an ambient area and those of the zones communicating with the ambient area. The control unit is operable, in response to detection information received from the zone-to-zone pressure gradient detecting device and the interior-ambient pressure gradient detecting device, to adjust quantities of air supply or exhaust to/from the zones, thereby to establish the predetermined pressure gradient between adjacent zones and between the ambient area and those of the zones communicating with the ambient area.

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