Enhanced white smoke elimination system based on wet electric precipitator ofcoal-fired power plant

Abstract

The invention discloses an enhanced white smoke elimination system based on a wet electric precipitator of a coal-fired power plant. The system comprises a vertical honeycomb wet electric precipitatorbody, a condensation pipe and an external cooling water tank, a condensation anode plate is arranged in the vertical honeycomb wet electric precipitator body, the condensation anode plate is of a hollow structure, the condensation pipe is inserted into the condensation anode plate, the external cooling water tank is arranged in the condensation anode plate, the outlet of the external cooling water tank is communicated with the inlet of the condensation pipe, and the inlet of the external cooling water tank is communicated with the outlet of the condensation pipe. According to the system, thephenomenon of white smoke and rain can be avoided, the operation effect of the dust remover is improved, and the energy consumption of a power plant is reduced.

Description

technical field [0001] The invention belongs to the field of energy saving and environmental protection, and relates to an enhanced heat exchange and whitening system based on wet electrostatic precipitators in coal-fired power plants. Background technique [0002] In recent years, on the basis of ultra-low emissions of air pollutants from thermal power plants, various localities have put forward more requirements for flue gas emissions from thermal power plants. Shanghai, Tianjin, Zhejiang, Hebei and other places have proposed control requirements. [0003] The white smoke and rain is mainly due to the large amount of water vapor in the flue gas. The wet electrostatic precipitator can collect water droplets in the flue gas to a certain extent, but it must be "water" in a liquid state. Therefore, the water vapor in the flue gas cannot be eliminated to a certain extent. [0004] At present, the mainstream technologies for controlling wet plume, such as heating method, conde...

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Problems solved by technology

Therefore, to a certain extent, the water vapor in the flue gas cannot be eliminated

[0004] At present, the mainstream technologies for controlling wet plume, such as heating method, condensation reheating method, and hot air mixing method, all need to input heat into the exhausted flue gas, resulting in increased energy consumption and decreased power generation efficiency of the power plant, which has a great impact on the economic benefits of the power plant

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