Fluidized bed heat exchanger with water cooled air distributor and dust hopper
US4301771A · kind A · utility
57Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Jul 2, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B37/146
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fluidized bed heat exchanger is provided in which air is passed through a bed of particulate material containing fuel. A steam-water natural circulation system is provided for heat exchange and the housing of the heat exchanger has a water-wall type construction. Vertical in-bed heat exchange tubes are provided and the air distributor is water-cooled. A water-cooled dust hopper is provided in the housing to collect particulates from the combustion gases and separate the combustion zone from a volume within said housing in which convection heat exchange tubes are provided to extract heat from the exiting combustion gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.