Labyrinth articulation joint for regenerative air heater...

Details Labyrinth articulation joint for regenerative air heater... Labyrinth articulation joint for regenerative air heater...

F - Mech Eng,Light,Heat,Weapons

28

D

277/2

F28D 17/04 (2006.01) F28D 17/02 (2006.01)

Patent

CA 1306269

Case 4784 ABSTRACT OF THE DISCLOSURE A labyrinth articulation joint (38) for use in the seal frame (35) of a rotary regenerative air heater (20). An internal labyrinth arrangement of intercooperating tabs (54,55) and slots (44,45) in the two hinges (41,51) of the labyrinth articulation joint (38) present a series of succes- sive right angle turns that increases the pressure drop through the labyrinth articulation joint (38) thus reducing the leakage of air through the labyrinth articulation joint (38), and thereby minimizing erosion of the labyrinth articu- lation joint (38) due to abrasive particles that would other- wise be carried through the joint by the leakage air.

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