FLOATING BYPASS SEAL FOR ROTARY REGENERATIVE HEAT EXCHANGERS

摘要

The gas flow bypass around the heating elements (40) in a regenerative air preheater is reduced by the use of floating bypass seals (46, 50, 56) which are placed in the rotor compartments (28) between stacked heating elements (40). The seals (46, 50, 56) comprise a frame (58) with an open center with the peripheral frame portion bridging the gaps between the heating elements (40) and the sides of the compartments (28). The seals (46, 50, 56) may be adjustable and may include a deformable edge seal (60) to actually contact and seal against the sides.