Furnace body smoke flue smoke leakage prevention device

Abstract

The invention discloses a furnace body smoke flue smoke leakage prevention device. The furnace body smoke flue smoke leakage prevention device comprises a furnace body smoke flue opening, a boiler water wall and a gap formed between the furnace body smoke flue opening and the boiler water wall, and is characterized in that sealing devices are arranged in the gap and comprise hydraulic sealing devices and high temperature resistant blankets, the high temperature resistant blankets are arranged in gaps perpendicular to the extension direction of the furnace body smoke flue opening, and the hydraulic sealing devices are arranged in gaps in the extension direction of the furnace body smoke flue opening. The furnace body smoke flue smoke leakage prevention device is simple in structure. Becausethe different sealing devices are installed at different positions, the problem that air enters the gaps between the furnace body smoke flue opening and the boiler water wall and smoke leaks outwardsafterwards is solved.

Description

technical field [0001] The invention relates to the field of boilers, in particular to a device for preventing flue gas leakage at a flue opening of a furnace body. Background technique [0002] There is a large gap between the flue opening of the bottom-blown furnace body and the water-cooled wall of the boiler flue. During normal production, due to the existence of the gap, a large amount of air enters, which increases the total amount of flue gas in the dust collection system, so that the internal pressure balance of the furnace body cannot be maintained. , causing the flue gas to leak from the feeding port and the flue port. After the analysis, it was found that the position and structure of the flue opening of the furnace body had defects in the following aspects. [0003] 1. The gap between the flue opening of the furnace body and the water wall of the boiler is too large, and there are conditions for flue gas leakage; [0004] 2. Due to the need to rotate the furnac...

AI Technical Summary

Problems solved by technology

[0003] 1. The gap between the flue opening of the furnace body and the water wall of the boiler is too large, and there are conditions for flue gas leakage;

[0004] 2. Due to the need to rotate the furnace body and the thermal expansion of the boiler, the gap must exist;

[0005] 3. There is no sealing device for the gap in the east-west direction, and the high-temperature-resistant blanket cannot be artificially covered due to the positional relationship during production.

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