Gas turbine cooling reuse system combined with evaporative cooling and absorption refrigeration

Abstract

The invention discloses an evaporative cooling and absorption refrigerating combined type cooling recycling system for a gas turbine. The evaporative cooling and absorption refrigerating combined type cooling recycling system comprises an evaporative cooling and absorption refrigerating combined inlet air cooling unit and an externally-arranged water tank; an air supply port of the evaporative cooling and absorption refrigerating combined inlet air cooling unit is connected to a gas inlet of the gas turbine, and a generator is arranged on an exhaust port of the gas turbine and is sequentially connected to a gas-liquid separator and a solution heat exchanger for forming a closed loop and forming a gas-liquid treatment system; the evaporative cooling and absorption refrigerating combined inlet air cooling unit is connected to the gas-liquid treatment system. According to the evaporative cooling and absorption refrigerating combined type cooling recycling system for the gas turbine, inlet air of the gas turbine is cooled in a step mode for increasing power output of the gas turbine; waste heat of exhaust gas of the gas turbine drives an absorption refrigerator to cool inlet air so as to be effectively utilized, and the performance of the gas turbine can be improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning systems, and in particular relates to a gas turbine cooling and reuse system combining evaporative cooling and absorption refrigeration. Background technique [0002] Compared with piston internal combustion engines and steam turbine power plants, gas turbines have many advantages such as light weight, small size, simple equipment, fast start-up acceleration, high efficiency, low noise and low emissions. However, the power generation and efficiency of the gas turbine are closely related to the air intake temperature. As the atmospheric temperature increases, the air density decreases, resulting in a decrease in the mass flow of air flowing through the gas turbine inlet, resulting in a decrease in the power generation of the gas turbine. Usually, this type of power generation The reduction in power occurs precisely when the electrical load is greater. According to research, a 1°C increase...

AI Technical Summary

Problems solved by technology

However, the power generation and efficiency of a gas turbine are closely related to the air intake temperature. As the atmospheric temperature increases, the air density decreases, resulting in a decrease in the mass flow rate of air flowing through the gas turbine inlet, resulting in a decrease in the power generation of the gas turbine. Usually, this type of power generation The reduction in power occurs precisely when the electrical load is greater

According to research, a 1°C increase in the ambient temperature can lead to a 1% decrease in the rated power generation capacity of the gas turbine.

In addition, the power consumption of the compressor is proportional to the thermodynamic temperature of the inhaled air, that is, when the atmospheric temperature rises, the power consumption of the compressor will also increase

It is worth noting that the gas turbine exhaust has a large amount of high-temperature waste heat. If no waste heat boiler or absorption refrigerator is arranged at the exhaust, the exhaust gas will be discharged directly, which will not only waste energy and pollute the environment, but also is not conducive to energy saving.

Images