Simulation test device for wet desulphurization chimney

Abstract

The invention belongs to the field of thermal power generation harmless treatment researches and relates to a simulation test device for a wet desulphurization chimney. The simulation test device comprises a smoke discharge device, an air flow device, a spray device, a waste gas collecting device, a condensate collecting device and a central control system, wherein the smoke discharge device comprises a horizontal flue and a vertical flue which are lined with corrosion-resistant materials, and the vertical flue is vertically arranged at the tail end of the horizontal flue and used for simulating an actual chimney; the air flow device is arranged at the starting end of the horizontal flue and comprises an air flow box, and the air flow box is used for producing the oxide gas of sulfur and conveying simulated air flow formed by mixing the oxide gas with air to the smoke discharge device. The simulation test device has the advantages that the device is simple in structure, the flue gas features of coal-fired flue gas of a power plant after wet desulfurization can be simulated, and the device can be used for the simulation corrosion test researches of chimney lining corrosion-resistant materials and the researches of environment problems such as air pollution, water pollution and heavy metal pollution caused by the coal-fire flue gas.

Description

technical field [0001] The invention belongs to the research field of harmless treatment of flue gas from thermal power generation, and relates to a simulation test device for a wet desulfurization chimney. Background technique [0002] The wet desulfurization process of flue gas in power plants significantly changes the temperature, humidity and medium conditions in the chimney. After FGD wet desulfurization, about 90% to 99% of SO2 in the flue gas is removed from the flue gas, but because a large amount of moisture is introduced into the flue gas after desulfurization, and the temperature of the flue gas is reduced to 50°C about. The inner wall of the chimney under this condition produces condensate, so it is called a "wet chimney". There are two technical problems in wet chimneys: downwashing of smoke and rain and corrosion of chimney chimney lining. The former comes from environmental protection restrictions, and the latter comes from high chimney safety and durability...

AI Technical Summary

Problems solved by technology

This method is expensive, inconvenient, and unsafe; in addition, the operating conditions of chimneys in different projects are different, so it is difficult to compare and analyze the collected data, so the theoretical research based on these data is of low value and poor convincing power

Images