Heat generator for heating a fluid by heat exchange through a fluidized bed and a process for implementing same
US4574743A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Feb 9, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C10/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The enclosure of a generator comprises a combustion zone 1 surrounded at least partially by a heat exchange zone 2, the combustion zone comprising a premix chamber 25 having means for supplying with air at 12 and with fuel 10,11 and inert recycling particles coming from zone 2. The premix chamber has mounted thereover a vertical duct 21 filled with a refractory stack 6 and comprises above the stack an opening 22 serving as overflow communicating with a vertical duct 4 situated outside duct 21 and opening into zone 2. The heat exchange zone 2 is formed as a dense fluidized bed zone and contains fluid circulation tubes 3. The vertical duct 21 serving as combustion hearth is filled with a fixed structure formed by a stack of several layers of spaced parallel bars, offset angularly from one layer to the next.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.