Combined cooling and power system driven by gas turbine exhaust smoke waste heat and method thereof

Abstract

The invention belongs to the field of combined cooling and power, and provides a combined cooling and power system driven by gas turbine exhaust smoke waste heat and a method thereof. The problems that a combined cooling and power system is low in generated power, and the utilization rate of the gas turbine exhaust smoke waste heat is low are solved. The effects that the generated power is high, and the utilization rate of the gas turbine exhaust smoke waste heat is high are achieved. The combined cooling and power system driven by gas turbine exhaust smoke waste heat comprises a recompressedsupercritical CO2 power cycle subsystem, a Kalina cycle subsystem and an ammonia absorption refrigeration cycle subsystem; the recompressed supercritical CO2 power cycle subsystem is used for drivinga turbine I to do work through exhaust smoke of a gas turbine, and electric power is generated; the Kalina cycle subsystem is used for transmitting the exhaust smoke waste heat, utilized by the recompressed supercritical CO2 power cycle subsystem, of the gas turbine to a waste heat boiler so that a turbine II can be driven to do work, and electric power is generated; and the ammonia absorption refrigeration cycle subsystem is used for recycling part of heat of CO2 in a main compression pipeline of the recompressed supercritical CO2 power cycle subsystem to conduct refrigeration.

Description

technical field [0001] The invention belongs to the field of power-cooling combined power supply, in particular to a power-cooling combined power supply system and a method thereof driven by exhaust heat of a gas turbine. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In recent years, the continuous growth of the world economy has formed a long-term high dependence on energy supply, and the problem of energy shortage has become increasingly prominent. At the same time, the deterioration of the ecological environment brought about by the development and utilization of large-scale fossil energy and the pollution emissions caused by energy consumption are gradually affecting all aspects of the atmospheric environment, water resources and ecosystems, and it is imminent to build a new energy system. Among them, building a distributed energy s...

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Problems solved by technology

However, the inventors found that the Kalina cycle is only suitable for heat sources with a maximum temperature of 300-400°C. For gas t

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