Method of efficiency enhancement of fired heaters without air preheat systems
US11802687B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 30, 2021 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Jan 13, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22D1/28
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for improving the efficiency of a fired heater without an air preheat system is described. The method involves the use of an additional outboard convection section which is separate from the regular convection section of the fired heater. The outboard convection section uses the boiler feed water or an alternate cold sink to reduce the temperature of the flue gas, thereby improving the efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.