Claims
- 1. A heat regenerator for removing waste heat from the exhaust gasses of a fossil fuel furnace boiler and regenerating said heat to preheat combustion air for the furnace and feedwater for the boiler comprising:
- (a) a bed of aggregate wherein the aggregate is sized pieces with larger pieces toward bottom of said bed;
- (b) a circular vessel for containing said vessel having an acid resistant lining;
- (c) a floatation pool of water for rotatably floating said vessel;
- (d) rotation means for rotating said vessel about a fixed vertical axis as said vessel floats on said pool;
- (e) radially and vertically extending separators positioned in said bed to separate said bed into wedge shaped portions;
- (f) a first semi-circular mantle positioned over half of said bed for supplying hot gasses from said furnace to the top of said bed to be drawn therethrough by fans which exhaust the cooled gasses to the atmosphere;
- (g) a second mantle positioned over the remainder of said bed for drawing ambient air up through the portions of said bed therebelow so rotation of said bed causes each wedge shaped portion to move beneath said first mantle to be heated by the exhaust gasses passing therethrough and then beneath said second mantle to preheat the combustion air passing therethrough.
- 2. The heat regenerator according to claim 1 wherein:
- (a) acid resistant pipes are positioned within said bed and boiler feedwater is circulated through said pipes to absorb the heat of condensation of water vapor in said exhaust gasses and thereby preheat the boiler feedwater.
Parent Case Info
This is a division of application Ser. No. 096,183, filed 9-11-87, which is in turn a division of Ser. No. 885,902, filed 7-15-86, now U.S. Pat. No. 4,597,433 granted July 1, 1986.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
Country |
672293 |
Feb 1979 |
FRX |
2081866 |
Aug 1982 |
GBX |
Divisions (2)
|
Number |
Date |
Country |
Parent |
96183 |
Sep 1987 |
|
Parent |
885902 |
Jul 1986 |
|