Circulating fluidized bed reactor having extensions to its heat exchange area
US5707591A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1996 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Sep 30, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B31/003
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A circulating fluidized bed reactor comprising a top zone surrounded by walls provided with heat exchange tubes, the heat exchange tubes being interconnected by fins, and a bottom zone provided with a fluidization grid, a primary air injection device beneath the grid, a secondary air injection device above the grid, and a fuel injection device, the walls surrounding the bottom zone being provided with heat exchange tubes. The walls of the zones are provided with vertical heat exchange panels referred to as "extensions" that extend perpendicularly to the walls of the zones, that are made up of tubes inside the reactor, that are of horizontal width lying in the range 150 mm to 500 mm, and that are spaced apart from one another via a distance lying in the range 1.5 times to 4 times their width, the width being defined as the distance between the inside faces of the fins of the walls and the most distant generator lines of the most distant tubes of the extensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.