Hot air blowing system for insulator room of electrostatic precipitator

Abstract

The invention discloses a hot air sweeping system of electric precipitator insulator chambers. The hot air sweeping system comprises an air conveying main pipe, a first air conveying branch pipe, a second air conveying branch pipe and a hot air supplying pipe, wherein the first air conveying branch pipe and the second air conveying branch pipe communicate with the two ends of the air conveying main pipe separately, and one end of the hot air supplying pipe communicates with the middle of the air conveying main pipe; the other end of the hot air supplying pipe is connected with a main fan and a standby fan, and a filter, an air heater and a flow regulating valve are sequentially arranged on the hot air supplying pipe; and the first air conveying branch pipe and the second air conveying branch pipe separately communicate with multiple air conveying branch pipes, each air conveying branch pipe is provided with a solenoid valve, and the inner wall of each air conveying branch pipe is coated with a corrosion-resistant insulating coating. According to the hot air sweeping system of the electric precipitator insulator chambers, hot air sweeping can be conducted on the insulator chambers, micro-positive pressure is formed in each insulator chamber, cold air is completely prevented from entering the insulator chambers, the air leakage problem of the insulator chambers is thoroughly solved, and normal operation of an electric precipitator is guaranteed.

Description

technical field [0001] The invention relates to a hot air blowing system for an insulator chamber of an electric dust collector. Background technique [0002] The insulator chamber of the conventional electrostatic precipitator has an inspection door, which is convenient for the inspection and repair of the insulator, and the insulator is a vulnerable part. The inspection door is generally sealed by tightening the cover plate and bolts, which cannot guarantee zero leakage. Since the electrostatic precipitator of the thermal power station operates under negative pressure, cold outdoor air enters the interior of the electrostatic precipitator through the inspection door, causing a local temperature drop, making the flue gas easy to condense in the insulator chamber, and the condensed dust in the flue gas sticks On the surface of the insulator, the complete insulation of the insulator cannot be guaranteed, and eventually the electric precipitator will be short-circuited and sh...

AI Technical Summary

Problems solved by technology

The inspection door is generally sealed by tightening the cover plate and bolts, which cannot guarantee zero leakage

Since the electrostatic precipitator of the thermal power station operates under negative pressure, cold outdoor air enters the interior of the electrostatic precipitator through the inspection door, causing a local temperature drop, making the flue gas easy to condense in the insulator chamber, and the condensed dust in the flue gas sticks On the surface of the insulator, the complete insulation of the insulator cannot be guaranteed, and eventually the electric precipitator will be short-circuited and shut down. This phenomenon is especially obvious in the low-temperature electric precipitator.

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