A Sealing Structure Applied to Economizer Ventilation Beam

Abstract

The invention discloses a sealing structure applied to a ventilating beam of an economizer. The sealing structure comprises the ventilating beam of the economizer, a steel frame beam, protective plates of the economizer and a sealing device, wherein the protective plates of the economizer are fixedly arranged on the steel frame beam, the expanding end of the ventilating beam of the economizer penetrates through the protective plates of the economizer and is arranged on the steel frame beam, and the sealing device sleeves the expanding end of the ventilating beam of the economizer and is welded with the protective plates of the economizer and the steel frame beam, respectively. The sealing structure disclosed by the invention has the beneficial effects that the sealing structure is simple in structure, low in welding difficulty, hard to seal off, good in sealing effect and stable and safe in equipment operation.

Description

technical field [0001] The invention relates to the field of biomass fluidized bed equipment, in particular to an air supply structure applied to a return pipe of a biomass fluidized bed. Background technique [0002] The ventilation beam of the economizer is a device used to support the serpentine tube of the economizer. It is expanded by the high-temperature flue gas; the current sealing measures for the ventilation beam of the boiler economizer are: one end of the ventilation beam is welded with the channel steel , the other end is the expansion end, and the expansion end is sealed with soft materials such as aluminum silicate cotton, the sealing effect is poor, and the air leakage of the economizer section is large, causing heat loss and affecting the boiler efficiency. Contents of the invention [0003] In order to solve the above problems, the present invention provides a sealing structure applied to the ventilation beam of the economizer, which has low welding diffi...

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Problems solved by technology

[0002] The economizer ventilation beam is a device used to support the economizer serpentine tube, which expands due to the action of high-temperature flue gas; the current sealing measures for the boiler economizer ventilation beam are: one end of the ventilation beam is welded to the channel steel , the other end is the expansion end, and the expansion end is sealed with soft materials such as aluminum silicate cotton, the sealing effect is poor, and the air leakage of the economizer section is large, causing heat loss and affecting the boiler efficiency

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