Variable sector plate quad sector air preheater

Details Variable sector plate quad sector air preheater Variable sector plate quad sector air preheater

1996-10-02

1999-06-29

Walberg, Teresa

Liquid heaters and vaporizers

Plants

Feed water heaters

165 9, 165 10, F23L 1502, F28D 1704

Patent

active

059153407

ABSTRACT:
A sealing arrangement for a quad sector rotary regenerative air preheater has a rotor rotatably mounted in a housing. The rotor has radially extending diaphragms forming compartments and radial seals extending along the edges of the diaphragms. Sector plates are positioned at the axial ends of the rotor to divide the preheater into a flue gas sector, a primary air sector and a first secondary air sector adjacent said flue gas sector and said primary air sector, and a second secondary air sector positioned adjacent said flue gas sector and said primary air sector. The sector plates between the flue gas sector and said secondary air sectors are in sealing engagement with two of the radial seals at all times and the sector plates between the primary air sector and the secondary air sectors are in sealing engagement with only one of the radial seals at any particular time.

REFERENCES:
patent: 3799242 (1974-03-01), Harris et al.
patent: 5137078 (1992-08-01), Borowy
patent: 5456310 (1995-10-01), Brophy et al.
International Search Report, International Application No. PCT/US 97/18124, Dec. 23, 1997.

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