Fluidized bed boiler Fengshui double bed slag cooler

Abstract

The invention provides a wind and water double-bed slag cooler for a fluidized bed boiler. The slag cooler is composed of a water-cooling system with a water pipe (25) arranged on an upper water-cooling wall (26) and a wind distribution bed material system with wind power cooling on the lower portion; the wind distribution bed material system comprises a wind chamber (9) arranged at the bottom of the slag cooler; the wind chamber (9) can communicate with the exterior of the slag cooler to lead in natural air or conveys needed air through a draught fan; a groove type wind distribution system is arranged on the top of the wind chamber (9) and comprises a wind distribution plate (4); a plurality of wind inlets are formed below the wind distribution plate (4); labyrinth type wind distribution units (1) are further fixed to the wind distribution plate (4); a U-shaped plate (3) is correspondingly arranged above a ventilation opening formed by every two adjacent labyrinth type wind distribution units (1); a U-shaped opening of each U-shaped plate (3) covers the ventilation opening formed by the corresponding two adjacent labyrinth type wind distribution units (1); and a gap is reserved between each U-shaped plate (3) and the corresponding two adjacent labyrinth type wind distribution units (1) so that an air duct can be formed, and therefore existing defects are overcome.

Description

technical field [0001] The invention relates to a feng shui double bed slag cooling machine for a fluidized bed boiler, in particular to a feng shui double bed slag cooling machine for a fluidized bed boiler suitable for heat exchange of power plant boilers. Background technique [0002] At present, most of the slag coolers used in boilers are drum-type or combined with wind and water. When the drum-type slag cooler is used for cooling, it is discharged together with large and small slag, which cannot separate the fine particles required by the boiler. However, most of the existing Fengshui joint bottom caps are cylindrical or water tower, which are easy to block and have low ventilation rate. The slag cooler usually needs to introduce external wind through the air chamber to increase the ventilation rate of the slag. The specific technical scheme is as follows: Figure 1-3 As shown, an air chamber 9 is arranged at the bottom of the slag cooler, and the air chamber 9 can be c...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the multiple deficiencies in the above-mentioned prior art, and to provide a fluidized bed boiler air-water double-bed slag cooler capable of better air supply and without problems such as clogging.

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