Back to results
US 9,803,549 B2Granted
Using return water of an evaporative intake air cooling system for cooling a component of a gas turbine
AssigneeAnsaldo Energia IP UK Limited
InventorsKlaus Doebbeling, Andreas Rueter, Christof Pfeiffer
Life of this patent
Estimating the term…
Abstract
A method and apparatus for the operation of a gas turbine unit with an evaporative intake air cooling system in the intake air pathway, wherein the return water flow of the evaporative intake air cooling system is used for the cooling of components of the gas turbine unit and/or of a generator coupled to the gas turbine unit and/or of another element coupled to the gas turbine unit, and a gas turbine unit adapted to be operated using this method.
Claims21
A method for the operation of a gas turbine unit, the method comprising:
- cooling a gas turbine inflow below ambient temperature with a return water flow at an evaporative cooler of an evaporative intake air cooling system;
- collecting the return water from the evaporative cooler that is not evaporated in the evaporative intake air cooling system, in a cold water collector at the evaporative cooler;
- guiding the return water from the cold water collector via a collection water line to a water heat exchanger;
- exchanging heat from the water heater exchanger to a cooling cycle with a liquid cooling medium, wherein the liquid cooling medium flows to at least a generator air cooler, the cooling cycle including a generator coupled to the gas turbine unit and the generator air cooler;
- and
- recirculating at least a portion of the return water from the heater exchanger via a recirculation line to the evaporative intake air cooling system.
3 more elements
A gas turbine unit comprising:
- an evaporative cooler;
- an evaporative intake air cooling system located in or operatively attached to the evaporative cooler, wherein a gas turbine inflow is cooled below ambient temperature with a return water flow at the evaporation cooler by collecting the return water from the evaporative cooler that is not evaporated in the evaporative intake air cooling system, in a cold water collector at the evaporative cooler, and guiding the return water from the cold water collector via a collection water line to a water heat exchanger;
- and
- a cooling cycle for the evaporative intake air cooling system with the water heat exchanger for an exchange of heat with a liquid cooling medium, wherein the liquid cooling medium flows to at least a generator air cooler, the cooling cycle including a generator coupled to the gas turbine unit and the generator air cooler, and wherein at least a portion of the return water from the water heater exchanger is recirculated via a recirculation line to the evaporative intake air cooling system.
1 more element
Dependencies are inferred from the claim text.