FLUE GAS TREATMENT DEVICE

摘要

A flue gas treatment device is provided. A wet electrostatic precipitator and a flue gas heater are integrated in an integrated flue housing of the flue gas treatment device, thus the occupied area of the flue gas treatment device is smaller than that of the solution with devices being arranged separately. Furthermore, since a bidirectional transition flue is not required to be arranged in the integrated flue housing, the flue gas has a good flow uniformity, and further it is not required to arrange a flow equalization orifice plate in the flue, thus the flue gas has a small resistance, thereby reducing the power consumption of the draught fan and increasing the efficiency of the power plant.

主权项

1. A flue gas treatment device, configured to be arranged between a wet desulphurization tower and a stack in a fossil-fuel power plant, wherein the flue gas treatment device comprises an integrated flue housing, a wet electrostatic precipitator and a flue gas heater, the integrated flue housing has a flue gas inlet channel configured to communicate with the wet desulphurization tower, and a flue gas outlet channel configured to communicate with the stack; the wet electrostatic precipitator and the flue gas heater are arranged in the integrated flue housing in sequence, the wet electrostatic precipitator is in communication with the flue gas inlet channel, the flue gas heater is in communication with the flue gas outlet channel, and a first transition flue is formed in the integrated flue housing at a portion between the wet electrostatic precipitator and the flue gas heater.