Fuel gas distributed type energy supply device for cooling inlet air by using solar energy

Abstract

The invention discloses a fuel gas distributed type energy supply device for cooling inlet air by using solar energy. The fuel gas distributed type energy supply device comprises an air filter (1), a gas turbine generator set (2), a double-pressure residual heat boiler (3) and a steam turbine generator set (4), and further comprises a solar heat collector (5), a heat collection system heat exchanger (6), a hot water storage tank (7) and an absorption type refrigerator (8) which are connected in sequence by a pipeline, wherein the hot water storage tank (7) is connected with the side of a tail heat exchanger of the double-pressure residual heat boiler (3) through a pipeline; and the absorption type refrigerator (8) is connected with the air filter (1). According to the fuel gas distributed type energy supply device, solar heat absorption type refrigeration is used for cooling inlet gas of a gas turbine and the output power and efficiency of the gas turbine are improved, and the fuel cost is saved; meanwhile, combined cycle residual heat of fuel gas and steam is sufficiently utilized and the economy of the system is improved; and the aims of complementary advantages, energy conservation and environmental friendliness of renewable energy sources and a fuel gas distributed type energy supply system can be realized.

Description

technical field [0001] The invention relates to a gas distributed energy supply system using solar energy for air intake cooling, and belongs to the technical field of energy utilization. Background technique [0002] Compared with the traditional centralized energy production and supply mode (the main representative form is the large power plant to increase the power grid), the gas distributed energy system is a small and medium-sized terminal supply system that provides various forms of energy directly to the user near the user end. energy system. It facilitates the realization of comprehensive cascade utilization of energy, and not only has higher energy utilization rate, but also has higher energy supply security and better environmental protection performance. Gas-fired distributed energy prime movers usually include gas-fired internal combustion engines and gas turbines, whose essence is the efficient utilization of waste heat. The gas turbine distributed energy syst...

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Problems solved by technology

[0003] However, there are still the following bottleneck problems in the popularization and application of gas turbine distributed energy: poor system integration performance, lack of effective utilization means for power waste heat, insufficient utilization of low-temperature waste heat, and the idea of ​​cascade utilization of energy has not yet been effectively reflected. The cooling, heating, and electricity loads do not match, the energy utilization efficiency is low, and there is no effective control means

The so-called solar absorption refrigeration is to use solar collectors to heat water to provide the heat medium water needed by the generator of the absorption refrigerator, so that the absorption refrigerator can operate normally and achieve the purpose of cooling. The resource itself has the characteristics of instability and discontinuity, and the pure solar absorption refrigeration has not been widely promoted.

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