A device for collecting condensate at the top of the flue gas deflector of a wet chimney

Abstract

The utility model provides a condensed fluid collection device at the top end of a wet chimney smoke guide plate. The condensed fluid collection device comprises a fixed support and a collecting tank, wherein the collecting tank is installed on the top end of a wet chimney smoke guide plate through the fixed support. Notches are formed in two sides of the collecting tank, a water discharging hole is formed in the lowest position in each notch, and a water discharging pipe is arranged in the water discharging hole; a reinforcing plate and a water guide plate are arranged inside the collecting tank, the water guide plate is used for guiding the collected condensed fluid to the water discharging pipe and discharging the condensed fluid out of a chimney. A smoke field in a smoke guide plate area in an inlet of the chimney is relatively complicated, the secondary entrainment phenomenon of the condensed fluid is likely to happen, the collecting device is arranged on the guide plate, the vortex generated nearby the smoke guide plate can be effectively eliminated, and the generated condensed fluid can be collected and discharged out of the chimney, so that the stack rain phenomenon caused by the secondary entrainment of the condensed fluid entering the atmosphere can be effectively avoided; meanwhile, the condensed fluid collection device is reliable, high efficient, economical, practical and easy to realize.

Description

technical field [0001] The invention relates to the technical field of chimney design, in particular to a device for collecting condensate at the top of a wet chimney flue gas guide plate, which is used for the treatment of wet chimney "chimney rain" phenomenon in thermal power plants, chemical industry, metallurgy and other industries adopting wet desulfurization technology . Background technique [0002] The limestone-gypsum wet flue gas desulfurization process is the most widely used and mature process in the world today, and it is also the leading process for desulfurization of domestic thermal power plants. More than 90% of thermal power units above 300MW in my country adopt limestone-gypsum wet flue gas desulfurization (WFGD) technology. Desulfurization Design Technical Regulations (DL / T5196-2004) stipulates that "under design conditions, the flue gas temperature at the chimney inlet after desulfurization should generally reach 80°C or higher for discharge", so the WFG...

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Problems solved by technology

[0010] The structure of the chimney inlet is relatively complicated, especially after the flue gas deflector is installed, due to the narrowing of the flow space, the flue gas flow rate in this area increases rapidly, and eddy currents are prone to occur, which will cause the condensate to be entrained by the flue gas and discharged to the atmosphere In the environment, the entrained condensate droplets are usually large in size, and they are the main cause of "chimney rain" or acid mist deposition

[0011] At present, most of the conventional wet chimney structure designs do not consider the humid environment where eddy currents will occur in the area of ​​the flue gas deflector and are prone to condensation, nor do they consider installing a condensate collection device on the flue gas deflector to collect the condensate generated, so that Unavoidable vortex phenomenon and secondary entrainment of condensate

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