Rotor design with double seals for vertical air preheaters

Details Rotor design with double seals for vertical air preheaters Rotor design with double seals for vertical air preheaters

F - Mech Eng,Light,Heat,Weapons

23

L

F23L 15/02 (2006.01) F28D 19/04 (2006.01)

Patent

CA 2406275

A method for adding additional axial seals (56') and radial seals (46') within existing air preheaters. The installed heat transfer baskets (40), radial seals (46), axial seals (56), and gratings (62) are all removed from the air preheater. The existing stay plates (64, 66) are modified, if they are to be reused, or replaced with new stay plates (65, 67). An intermediate diaphragm plate (60) is positioned in each original compartment (36) and mounted to stay plates (64, 66). Additional hot and cold end axial seal support bars (52', 54'), are mounted to the rotor shell (34) and intermediate diaphragm plate (60). Axial seals (56, 56') are installed on the original and additional axial seal support bars (52, 54, 52', 54') and radial seals (46, 46') are installed on the axial edges of the original and intermediate diaphragm plates (38, 60).

Cette invention concerne un procédé visant à ajouter des joins axiaux (56') et radiaux (46') supplémentaires dans des préchauffeurs d'air existants. Après retrait préalable des hottes de transfert de chaleur (40), on dépose les joints radiaux (46), les joints axiaux (56) et les grilles existants du préchauffeur d'air. On modifie les plaques de renfort (64, 66) existantes s'il est prévu de les réutiliser ou on les remplace par de nouvelles plaques de renfort (65, 67). Une plaque membrane intermédiaire (60) est disposée dans chacun des compartiments d'origine (36) et montée sur les plaques de renfort (64, 66). On monte des barre de soutien (52', 54'), supplémentaires pour joints axiaux aux extrémités chaudes et froides sur la coquille de rotor (34) et la plaque membrane intermédiaire (60). On monte les joints axiaux (56, 56') sur les barres de maintien d'origine et supplémentaires (52, 54, 52', 54') pour joints axiaux et ainsi que les joints radiaux (46, 46') sur les bords axiaux des plaques membranes d'origine et intermédiaires (38, 60).

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