Corrugated plate for wet processes desulphurization tower and airflow distributing device thereof

Abstract

The invention relates to a corrugated plate for wet processes desulphurization tower and an airflow distributing device composed of the corrugated plate. The corrugated plate comprises a plurality of horizontally arranged corrugated plate modules and supporting beams, wherein each corrugated plate module is integrally formed by a plurality of mutually parallel valley and peak plates and side wall plates connected with the valley and peak plates and having inclination angles, a plurality of round through holes are uniformly distributed in the valley plates, the side wall plates and the peak plates, and the corrugated plate modules are connected and fixed to the supporting beams through bolts. The corrugated plate can achieve effective flue gas rectification, airflows are mutually interfered through optimal parameter values due to inclined arrangement of the side wall plates after flue gas passes through the airflow distributing device, and the flue gas flowing speed is reduced, so that the flue gas in a tower is uniform in distribution, falling slurry drops form a liquid film on the surface of the corrugated plate, the standing time of the slurry is prolonged, mass transfer between two phases of air and liquid is enhanced, the desulphurization efficiency is improved, and a synergic flue gas dust removal effect is improved. By arranging the bolts and the supporting beams, the corrugated plate is simple in structure and convenient to install, dismount and maintain.

Description

technical field [0001] The invention relates to the field of auxiliary equipment of a flue gas desulfurization device, in particular to a corrugated plate used in a wet desulfurization tower and an air distribution device thereof. Background technique [0002] The flue gas emitted by coal-fired power plants contains a large amount of sulfur dioxide. If it is directly discharged without treatment, it will cause great harm to the environment and economic development. With the increasingly stringent environmental protection standards, power companies have stepped up efforts to control sulfur dioxide. The limestone-gypsum wet flue gas desulfurization technology is currently the most widely used and mature desulfurization process, and the absorption tower is the core equipment of the process. The boiler flue gas enters the tower from the inlet flue of the absorption tower, the flue gas rises, and in the absorption area, it contacts with the gypsum slurry sprayed down from the up...

AI Technical Summary

Problems solved by technology

However, after the flue gas enters the absorption tower body, the volume will expand rapidly and the speed will slow down. Affected by the absorption tower wall, a part of the flue gas flows upward along the opposite side of the absorption tower entrance, while the other part of the flue gas moves downward and flows at the bottom of the absorption tower. A counterclockwise vortex is formed near the pool, resulting in a strong turbulent flow area, resulting in extremely uneven distribution of flue gas in the tower, affecting the mass transfer effect between the gas-liquid two phases, reducing the desulfurization efficiency and the synergistic dust removal efficiency of the absorption tower

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