Automatic-control energy-saving type smoke plume eliminating device

Abstract

The invention discloses an automatic-control energy-saving type smoke plume eliminating device. The automatic-control energy-saving type smoke plume eliminating device comprises an air heater system,a condensation water system, a smoke gas cooling system, a smoke gas heating system, and a smoke temperature automatic-control system, wherein smoke gas at an outlet of a dust remover is cooled by a primary cooling device, so that ability of carrying water when the smoke gas passes through a desulfurizing tower is reduced; and the smoke gas passes through the desulfurizing tower. Smoke gas at theoutlet of the desulfurizing tower is condensed by a secondary cooling device to separate out water in the smoke gas, and the cooled smoke gas enters a smoke gas heating system; the smoke temperature automatic control system controls a proper smoke gas temperature, and the heated smoke gas is exhausted into atmosphere through a chimney, so that the purpose of eliminating smoke plume is achieved. The system can effectively realize multiple effects of saving energy, saving water, reducing emission and eliminating smoke plume, and has relatively good economical and environmental benefits.

Description

technical field [0001] The invention relates to the field of flue gas treatment, in particular to an automatic control and energy-saving smoke plume elimination device. Background technique [0002] In order to improve the quality of the atmospheric environment, the state and some local governments have formulated increasingly stringent emission standards for the thermal power industry, requiring measures to be taken for pollution control. In order to meet the ultra-clean emission requirements, most coal-fired power plants use the limestone-gypsum wet desulfurization process to remove sulfur dioxide in the flue gas. Gas acid dew point temperature. The demister of the desulfurization system can remove most of the precipitated water, but the flue gas is still in a saturated state, carrying some small droplets. The humidity of the wet flue gas after wet desulfurization is 100-200g / Nm 3 , while the average humidity of the ambient atmosphere in my country is only 9g / Nm 3 , the...

AI Technical Summary

Problems solved by technology

However, MGGH or WGGH technology does not reduce the water content and pollutant discharge in the flue gas. In winter, part of the steam turbine is used to extract steam to ensure the flue gas temperature at the chimney outlet, which increases the energy consumption of the unit, and cannot accurately control the flue gas temperature at the chimney inlet. Resulting in wasted energy or failure to eliminate white smoke problems

[0004] The above-mentioned white smoke elimination device has high energy consumption, cannot recover the moisture in the flue gas, reduce the pollutant content in the flue gas, and cannot control the appropriate flue gas temperature

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