| 摘要 |
A semi-modular rotor module 52 for a modified modular air preheater 10 has a two pin lug assembly for engaging an air preheater post 16. The two pin lug assembly includes an upper two pin lug 54 and a lower two pin lug and is configured to occupy a sector sealing plate angle .beta.. A plurality of diaphragms 56, 58, 60, 62 extend radially from the two pin lug assembly, including two outer diaphragms 56, 62 positioned to define a sub- sector angle .gamma. that is less than the sealing plate angle .beta.. Stay plates 42 are between the diaphragms to define basket modules where heat exchange elements 22a are received. A modular rotor can be modified by removing pairs of adjacent unitary rotor modules 20 and replacing each pair with the semi-modular rotor module 52. |
