Method and device for operating the water/steam cycle of a therm

Details Method and device for operating the water/steam cycle of a therm Method and device for operating the water/steam cycle of a therm

1994-09-29

1997-09-23

Yeung, James C.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60646, 60657, F01K 900

Patent

active

056692200

ABSTRACT:
A method of operating a water/steam cycle of a thermal power station, for example a steam power station, combined heat and power station or combined cycle power station, having a preheating section for condensate, a steam generator, a steam turbine with a condenser, a condensate treatment system downstream of the condenser, and at least one condensate pump upstream of the condensate treatment system. The treated condensate is subjected to tapped steam from the steam turbine and/or from a steam reheat system in the preheating section and is heated thereby before it is supplied to the steam generator. The condensate is subjected to a pretreatment before reaching the preheating section and its degasification is dispensed with when it subsequently flows through the preheating section. A water/steam cycle of a thermal power station includes a preheating section, a steam generator, a steam turbine downstream of the steam generator, a condenser and a condensate treatment system downstream of the condenser. The preheating section has at least one low-pressure and/or high-pressure preheater and at least one feed pump for feeding condensate from the preheating section into the steam generator.

REFERENCES:
patent: 3336747 (1967-08-01), Applebaum et al.
patent: 4003205 (1977-01-01), Matsumura
patent: 4471618 (1984-09-01), Tratz et al.
patent: 4776170 (1988-10-01), Blangetti
patent: 4896500 (1990-01-01), Pavel et al.
patent: 5215448 (1993-06-01), Cooper

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