Air intake cooling device of gas turbine based on waste-heat utilization

Abstract

The invention provides an air intake cooling device of a gas turbine based on waste-heat utilization and belongs to the field of the air intake cooling device of the gas turbine. The intake cooling device comprises a chimney, a separating heat exchanger, a condenser, an evaporator, an absorber, a coolant steam circulation loop, a second circulation loop, a cooling tower and a gas turbine waste heat boiler; the separating heat exchanger is arranged above the chimney; the separating heat exchanger is provided with a lithium bromide solution, a steam duct and a liquid duct; the steam duct and theliquid duct are correspondingly connected up and down so as to form the circulation loop; the separating heat exchanger, the condenser, the evaporator and the absorber are successively connected through a pipeline and installed on the coolant steam circulation loop; the second circulation loop is installed between the separating heat exchanger and the absorber; an air cooler is respectively connected with the evaporator and a gas compressor; the gas compressor is connected with a gas engine wheel; and the refrigerant water in the evaporator can reduce the air intake temperature of the gas engine wheel by the air cooler. The air intake cooling device provided by the invention can improve the generation output performance of the gas turbine unit effectively under a high temperature environment by making use of itself waste heat of a power plant.

Description

technical field [0001] The invention belongs to the field of gas turbine intake cooling devices, and relates to a gas turbine intake cooling device based on waste heat utilization. Background technique [0002] The performance of the gas turbine is closely related to the environment. If the ambient temperature rises, the air density at the inlet of the gas turbine will decrease, the mass flow rate of the intake air will decrease, the output of the gas turbine will decrease, and the heat consumption will increase. The power is further reduced. According to different cold sources, the inlet cooling methods mainly include direct contact refrigeration, ice storage, compression refrigeration and absorption refrigeration. [0003] At present, the cooling system of the absorption refrigeration method adopts steam or hot water type bromine cooler. The steam or hot water used is provided by the heater installed in the tail flue of the waste heat boiler. If the heater has failures su...

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Problems solved by technology

[0003] At present, the cooling system of the absorption refrigeration method adopts steam or hot water type bromine cooler. The steam or hot water used is provided by the heater installed in the tail flue of the waste heat boiler. If the heater has failures such as pipeline corrosion and leakage , the gas turbine air intake cooling system must stop running, and adding a heat exchange device will also increase the initial investment of the gas turbine air intake cooling system

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