Integrated system for heating and cooling inflow air of gas turbine

Abstract

The invention discloses an integrated system for heating and cooling inflow air of a gas turbine. The integrated system comprises a lithium bromide refrigerator, wherein the inlet of a driving heat source of the lithium bromide refrigerator is connected with a heat supply steam bleeding or low pressure main steam leading-out port of a steam turbine; condensed water formed by the heat supply steam bleeding or low pressure main steam after being condensed through the lithium bromide refrigerator is lead out from a condensed water leading-out port of the lithium bromide refrigerator, and then is connected to a condensed water pipeline behind a shaft sealing heater through a pipeline pump; a cooling water inlet of the lithium bromide refrigerator is connected with an outlet of a circulating water pump in a power plant circulating water pipeline, and a cooling water outlet of the lithium bromide refrigerator is connected with a backwater pipeline in the circulating water pipeline; a refrigerant water outlet of the lithium bromide refrigerator is connected with the inlet of a refrigerant water heat exchange channel in an air cooler through a chilled water pump, and the outlet of the refrigerant water heat exchange channel is connected back to a refrigerant water inlet of the lithium bromide refrigerator; the air cooler is also internally provided with an air heat exchange channel, and the hot air sucked into the air heat exchange channel carries out heat exchange with the refrigerant water of a refrigerant water heat exchange channel.

Description

technical field [0001] The invention relates to an integrated system for gas turbine inlet heating or anti-freezing and cooling, which belongs to the field of energy technology. Background technique [0002] The gas turbine is a constant-capacity power machine, and its performance is closely related to the ambient temperature. When the ambient temperature rises, the air density decreases, resulting in a decrease in the mass flow through the compressor and gas turbine, resulting in a decrease in the output of the gas turbine. The increase in ambient temperature will also reduce the compression ratio of the compressor and increase the power consumption, resulting in a further decrease in the output of the gas turbine. For simple cycle or combined cycle, as the ambient temperature increases, the output and thermal efficiency of the gas turbine will decrease. Therefore, configuring the air intake cooling system during the high temperature period in summer can increase the out...

AI Technical Summary

Problems solved by technology

When the ambient temperature rises, the air density decreases, resulting in a decrease in the mass flow through the compressor and gas turbine, resulting in a decrease in the output of the gas turbine

The increase in ambient temperature will also reduce the compression ratio of the compressor and increase the power consumption, resulting in a further decrease in the output of the gas turbine

For simple cycle or combined cycle, as the ambient temperature increases, the output and thermal efficiency of the gas turbine will decrease

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