Blowdown heat recovery

Details Blowdown heat recovery Blowdown heat recovery

2005-09-06

2005-09-06

Wilson, Gregory (Department: 3749)

Liquid heaters and vaporizers

Feed heaters

Boiler circuit

Reexamination Certificate

active

06938583

ABSTRACT:
A method of recovering heat energy during blowdown of a steam boiler is described wherein thermal energy is recovered both from flash steam produced by blowdown water and the blowdown water itself. The flash steam is preferably condensed in the feedwater (or any open vented water tank) so as to recover the water volume of the flash steam in addition to its heat energy.

REFERENCES:
patent: 3026043 (1962-03-01), Johnson et al.
patent: 4285302 (1981-08-01), Kelly
patent: 4393816 (1983-07-01), Bock
patent: 4428328 (1984-01-01), Ratliff
patent: 4465026 (1984-08-01), Carberry
patent: 6655322 (2003-12-01), Godwin et al.

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