초록 ▼

A large electrical power plant includes two operating units, one of which is more efficient and is run as a base load unit. The less efficient operating unit is run only during periods of peak demand or when the more efficient unit is down. Hot condensate from the more efficient unit is cooled in th

A large electrical power plant includes two operating units, one of which is more efficient and is run as a base load unit. The less efficient operating unit is run only during periods of peak demand or when the more efficient unit is down. Hot condensate from the more efficient unit is cooled in the condenser of the less efficient unit and then sprayed into the turbine outlet of the more efficient unit. This condenses steam more efficiently, at a lower pressure, and allows the more efficient unit to produce more electricity because there is a greater pressure differential across the turbine. In addition, cool condensate is sprayed into the duct connecting the turbine and the condenser to reduce choking flow, when it is prone to occur. In addition, cool make up water is sprayed into the condenser of the operating unit.

대표청구항 ▼

[ I claim:] [1.] An electrical generating facility including first and second electrical generating units each includinga steam turbine, an electrical generator driven by the turbine, a motive fluid circuit for receiving condensate from a condenser and delivering steam to the turbine, and a circulat

[ I claim:] [1.] An electrical generating facility including first and second electrical generating units each includinga steam turbine, an electrical generator driven by the turbine, a motive fluid circuit for receiving condensate from a condenser and delivering steam to the turbine, and a circulating coolant circuit including an indirect heat exchange condenser receiving steam from the turbine for withdrawing heat from the steam and converting the steam to condensate, a heat exchanger for giving up heat from the coolant, and piping connecting the condenser and heat exchanger in a circuit for circulating coolant through the condenser and heat exchanger,the first electrical generating unit being more efficient than the second electrical generating unit and being the normally operating unit, the second electrical generating unit normally delivering less than its full capacity and being put into high load service in times of large demand, the improvement comprisingmeans dividing condensate from the condenser of the first generating unit into a first stream delivered to the motive fluid circuit and a second stream;means delivering the second stream of condensate to the condensing means of the second generating unit and cooling the second stream of condensate; andmeans delivering the cooled second stream of condensate into the condenser of the first generating unit for condensing steam in the condenser of the first generating unit whereby condensate of the first generating unit is cooled in the condensing means of the second generating unit and unused capacity of the second generating unit is used by the first generating unit at a time when the second generating unit is operating at less than full capacity.