Sealing of air heaters by deforming sector plates

Details Sealing of air heaters by deforming sector plates Sealing of air heaters by deforming sector plates

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 19/04 (2006.01)

Patent

CA 2070374

2070374 9106819 PCTABS00005 A sealing structure for an air preheater is provided for maintaining a constant clearance between the drum (48) and deformable sector plates (176). Deflection governing struts or beams (120) extend across the sector plates (176) and bend in a manner which corresponds with the change in shape which the drum (48) undergoes when its temperature changes. The outer ends of the struts are connected to an outer ring (110) engages with the drum via guides (100). As the drum (48) deforms so that its ends assume approximately partial spherical curvatures in response to increased temperatures, the struts (120) are likewise deformed. The deformation of the sector plates (176) is controlled by the more rigid struts (120).

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