Method of controlling a PFBC plant in the event of operational disturbance in the gas turbine unit and a PFBC plant with equipment for such control
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United States of America Patent
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-
May 17, 1988
Grant Date -
N/A
app pub date -
Jan 27, 1987
filing date -
Jan 24, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the event of an operational disturbance in a turbine-compressor unit of a PFBC plant, the turbine and the compressor are isolated from the bed vessel of the plant by closing a valve in the gas supply conduit to the turbine and by closing a valve in the conduit leading from the compressor. At the same time a valve is opened in a by-pass conduit between the compressor and the turbine. Combustion air is allowed to escape into the atmosphere via one or more blow-off valves. The bed vessel and/or a space between the pressure vessel and the bed vessel are supplied with inert gas in such a way that combustion in the bed is damped down.
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