Anti-collapse device for horizontal flue in front of dust collector in thermal power plant

Abstract

The invention discloses a front horizontal flue collapse prevention device of a thermal power plant deduster and belongs to the thermal power plant dedusting field. The front horizontal flue at least comprises a horizontal flue wall, an expansion joint, an inner cavity of a flue and a vertical flue wall, wherein the horizontal flue wall is connected with the vertical flue wall through the expansion joint, mounting holes for a collapse prevention device are formed on bilateral sides of the horizontal flue wall, and the mounting holes are provided with the collapse prevention device. According to the collapse prevention device arranged on the front horizontal flue of a deduster since mixture of dust stratification and water is easy to produce on the front horizontal flue of the deduster, the mixture of the dust stratification and the water inside the flue can be automatically cleared before the flue dust stratification load is over limit bearing load to avoid flue collapse accidents caused by the abnormal load of the mixture of the dust stratification and the water in the front horizontal flue and flue collapse accidents can be effectively avoided due to the facts that the water accumulation in the flue can be found particularly and excessive water accumulation and dust stratification can be discharged before serious accidents occur.

Description

technical field [0001] The invention relates to the field of dust removal in thermal power plants, in particular to an anti-collapse device for a horizontal flue in front of a dust collector in a thermal power plant. Background technique [0002] At present, the horizontal flue in front of the precipitator of all coal-fired thermal power plants will have a certain degree of ash accumulation. It will cause ash to mix with water, resulting in a greatly increased ash load in the flue. When the leaked moisture accumulates to a certain extent and the ash load of the flue exceeds the limit load of the flue support structure, an accident of flue collapse will occur at this time, resulting in loss of life and property. In the past ten years, there have been many flue collapse accidents. [0003] At present, in the relevant national design and maintenance specifications, there is no clear prevention regulation for the mixture of dust and water in the flue, which leads to the overlo...

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Problems solved by technology

[0003] At present, in the relevant national design and maintenance specifications, there are no clear prevention regulations for the mixture of dust and water in the flue, which leads to the overload of the flue. Identify whether the dust load of the flue is abnormal. Once the dust and water are mixed and the load exceeds the design allowable value, the flue collapse accident will occur

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