STEAM-GAS PLANT Russian patent published in 1995 - IPC

FIELD: heat power engineering. SUBSTANCE: plant comprises source 1 of the secondary heat energy and steam boiler-utilizer 2. The high-pressure loop and low-pressure loop are incorporated in the path of the boiler-utilizer and interconnected via a steam-gas path. The high-pressure loop includes over-heater 12, evaporating surfaces 11, drum 10, and high-pressure economizer 9. The low-pressure loop includes evaporating surfaces 6, drum 5, low-pressure economizer 4, heightening feed pumps 3, and baffle mounted upstream of economizer 9. The baffle define two passages in the gas path. One of the passages is provided with over-heater 12 and the other one with evaporating surfaces 11. Gate valves 13 are mounted downstream of the passages. EFFECT: enhanced efficiency. 1 dwg