Combined heat recovery and make-up water heating system
US4745757A · kind A · utility
7Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1987 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Feb 24, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22D11/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cogeneration plant is disclosed in which the feedwater from the deaerator heater is placed in heat exchange relation with the makeup water before the makeup water is delivered to the deaerator heater. The amount of heat transferred from the feedwater to the makeup water is controlled in response to the stack gas temperature. The feedwater from the heat exchanger is then placed in heat exchange relation with the stack gas, either in the economizer or through a separate coil, to take advantage of waste heat that would otherwise be lost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.