Combined cycle electric power plant having a control system which enables dry steam generator operation during gas turbine operation

Patent · Thu Aug 08 04:00:00 EDT 1974

OSTI ID:7277937

Martz, L F; Plotnick, R J

A control system for a combined cycle electric power plant is described. It contains: at least one gas turbine including an exit through which heated exhaust gases pass; means for generating steam coupled to said gas turbine exit for transferring heat from the exhaust gases to a fluid passing through the steam generator; a steam turbine coupled to the steam generator and driven by the steam supplied thereby; means for generating electric power by the driving power of the turbines; condenser means for receiving and converting the spent steam from the steam turbine into condensate; and steam generating means comprising a low pressure storage tank, a first heat exchange tube, a boiler feedwater pump for directing fluid from a low pressure storage tank through the first heat exchange tube, a main storage drum, a second heat exchange tube, and a high pressure recirculation pump for directing fluid from the main storage pump through the second heat exchange tube. The control system monitors the temperature of the exhaust gas turbine gases as directed to the steam generator and deactuates the steam turbine when a predetermined temperature is exceeded.

• Assignee: Westinghouse Electric Corp.
• Patent Number(s): US 3953966
• OSTI ID: 7277937
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200102* -- Fossil-Fueled Power Plants-- Power Cycles
200104 -- Fossil-Fueled Power Plants-- Components
BOILERS
COMBINED-CYCLE POWER PLANTS
CONTROL SYSTEMS
DESIGN
ENERGY RECOVERY
EXHAUST GASES
GAS TURBINES
GASEOUS WASTES
HEAT EXCHANGERS
HEAT RECOVERY
MONITORING
OPERATION
POWER PLANTS
RECOVERY
STEAM GENERATORS
STEAM TURBINES
TEMPERATURE MONITORING
THERMAL POWER PLANTS
TURBINES
TURBOMACHINERY
VAPOR GENERATORS
WASTES