Gas turbine inlet air treatment method integrating pollutant cleaning filtration and evaporative cooling

Abstract

The invention discloses a gas turbine inlet air treatment method integrating pollutant cleaning filtration and evaporative cooling and belongs to the technical field of energy. The method comprises the following five steps: air inlet filtering, rotary-wheel dehumidification, evaporative cooling and air inlet cleaning, water removal and water regeneration. Air inlet of the gas turbine is subjectedto cleaning, dust removal, haze removal, gas pollutant cleaning and evaporative cooling, cooling water is sprayed into dried air subjected to rotary-wheel dehumidification, and dust and haze particlesas well as gas pollutants which can be dissolved into water or can carry out a chemical reaction with the water and cannot be filtered and cleaned by the existing filtering system, such as SO2, NOx and the like, are removed. The air inlet temperature is lowered by water vapor heat absorption, and the effect of performing integrated cooling and cleaning on inlet air is achieved.

Description

technical field [0001] The invention relates to the technical field of energy, in particular to a gas turbine intake air treatment method integrating pollutant cleaning, filtering and evaporative cooling. Background technique [0002] At present, the method for cleaning pollutants in the intake air of a gas turbine is not involved in domestic and foreign patent documents. Just as the steam cycle generator set has certain requirements on the quality of its working fluid (water or water vapor), the gas turbine also needs to be cleaned and filtered for its working fluid (air), just like water treatment. Existing gas turbine intake filtration systems can only filter solid and liquid pollutant particles and cannot remove gas pollutants, but SO 2 and NO x If the corrosive gas enters the gas turbine, it will cause adverse effects such as corrosion and scaling on the equipment, and even threaten the operation safety of the combined cycle unit. Such gaseous pollutants should be re...

AI Technical Summary

Problems solved by technology

Since the exhaust heat of the gas turbine is used to concentrate and regenerate the solution of the solution dehumidifier instead of generating steam to expand and do work in the steam turbine, although the output of the gas turbine has increased, it has reduced the output of the steam turbine and the total cycle time On the contrary, the output decreased

At the same time, from using the gas turbine exhaust waste heat to generate hot water, to using hot water to concentrate and regenerate the solution dehumidifier, it involves multiple energy conversions, as well as heat dissipation and heat preservation of hot water pipes, so the energy utilization rate is relatively low

[0009] Similarly, there is no evaporative cooling and cleaning device in this patent document, and the intake air is not cleaned to remove dust, haze, and gas pollutants.

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