Preheating of untreated water in power plants
AssigneeSiemens Aktiengesellschaft
InventorMichael Haegel
Life of this patent
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Abstract
A method for preheating untreated water in a power plant having a water/steam circuit, the power plant has a steam producer, a steam turbine, and steam lines, of which at least some connect the steam producer to the steam turbine, wherein untreated water for producing deionized water is heated by means of wastewater from the water/steam circuit and the wastewater is added to the untreated water in order to heat the untreated water. A power plant is adapted for preheating untreated water by the method.
Claims10
-11. (canceled)
A method for preheating untreated water in a power plant having a water/steam circuit, the power plant comprising a steam generator, a steam turbine and steam lines, of which at least some connect the steam generator to the steam turbine, the method comprising:
- heating untreated water for production of deionized water by waste water from the water/steam circuit, and
- admixing the waste water with the untreated water for the purpose of heating the untreated water.
A power plant having a water/steam circuit, the power plant comprising:
- a steam generator, a steam turbine and steam lines, which at least in part connect the steam generator to the steam turbine,
- an untreated-water mixer and a vessel for waste water from the water/steam circuit, wherein the untreated-water mixer and the vessel for waste water from the water/steam circuit are fluidically connected to each other,
- an apparatus in the untreated-water mixer for distributing the waste water in the untreated water, and
- a closed-loop controller for closed-loop control of the untreated water temperature, wherein the closed-loop controller for the untreated water temperature comprises an open-loop control of a blowdown water quantity.
Dependencies are inferred from the claim text.