Washing water collection device of wet-type electric demister

Abstract

The invention discloses a washing water collection device of a wet-type electric demister. The washing water collection device of the wet-type electric demister is located vertically below the electric demister, and comprises a plurality of sets of gas channel elements (81), liquid channel elements (82) and water discharging pipes (83) communicated with the liquid channel elements (82), wherein the water discharging pipes (83) penetrate through a lower shell (615) of the wet-type electric demister to be communicated with an exhausting opening (84) in the outer part of the shell. The washing water collection device of the wet-type electric demister is applied to the bottom of the wet-type electric demister and can be used for collecting and recycling a large part of washing water, so as to avoid causing secondary carrying by countercurrent contact of the washing water and smoke when the washing water falls off and not influence the operation effect of the wet-type electric demister; meanwhile, the recycling of the washing water can be realized so that the influences on the liquid level and the water balance of an absorption tower are not caused when the wet-type electric demister is integrated at the top of the absorption tower.

Description

technical field [0001] The invention relates to the field of flue gas desulfurization, and specifically designs a flushing water collecting device for a wet electric demister. Background technique [0002] In recent years, countries around the world have paid more and more attention to environmental protection, and environmental protection standards have become increasingly strict. Restricted by emission standards, some developed countries have removed SO emissions from flue gas 2 In addition to taking effective control measures for , NOx and smoke, the emission reduction of fine smoke, mercury and other pollutants in the form of aerosols has been put on the agenda. [0003] So far, my country's emission restrictions on soot-type pollutants are mainly SO 2 and soot. Most coal-fired power plant generating units are equipped with dust removal and desulfurization devices, of which wet desulfurization process accounts for about 90% of all desulfurization devices. [0004] Al...

AI Technical Summary

Problems solved by technology

For the wet electrostatic demister placed on the top of the absorption tower, a large amount of flushing water will directly fall into the slurry tank. Since the heat and water that the flue gas can take away are fixed, it will inevitably cause the liquid level of the slurry tank to drop. Continuously rising, and then the water balance of the absorption tower is destroyed, and finally the whole system is paralyzed

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