Flue structure and installation method of new economizer

Abstract

A novel economizer flue structure and installation and arrangement method. The traditional economizer flue guard plate is hung vertically on the tail wall header. There is no truss inside the flue duct, and all flue loads must be transmitted to the header by the guard plate. The composition of the present invention includes: flue structure, the flue structure includes truss A (1), truss B (9), guard plate (4), angle steel slideway (8), truss A and wall header (2) are welded Fix and design the inclination angle a, the angle a is 0~45°, the guard plate is installed on the side of truss A, truss A and truss B form an integral frame structure in the flue, and the baffle plate (5) of truss A is set up and down through the smoke The angle steel in the width direction of the track, the angle steel is welded on the inner side of the truss A and the guard plate as the supporting frame of the baffle, and the baffle is placed on the angle steel of the truss A. When the boiler shuts down and needs to be pulled out for maintenance, the angle steel is an angle steel slideway. The invention is used for the flue structure of a novel coal economizer.

Description

Technical field: [0001] The invention relates to a novel economizer flue structure and an installation and arrangement method. Background technique: [0002] With the increasingly fierce market competition, new products emerge one after another, and the layout of the boiler tail flue is also different. The traditional economizer flue guard is hung vertically on the tail wall header. There is no truss inside the flue, and all flue gas The load of the duct needs to be transmitted to the header by the guard plate, the inspection and maintenance of the flue is cumbersome, the arrangement of the flue is messy, and the structure is complex. [0003] At the same time, as an integral part of the tail flue, the temperature-adjusting baffle is welded together with the flue, but this structure relying on vertical hanging cannot meet the design requirements of the new structure. The economizer needs to be hung under the wall-clad header, and the flue The flue must be suspended at a cer...

AI Technical Summary

Problems solved by technology

[0002] With the increasingly fierce market competition, new products emerge one after another, and the layout of the boiler tail flue is also different. The traditional economizer flue guard is hung vertically on the tail wall header. There is no truss inside the flue, and all flue gas Duct load needs to be transferred to the header by the guard plate, the inspection and maintenance of the flue is cumbersome, the arrangement of the flue is messy, and the structure is complex

[0003] At the same time, as an integral part of the tail flue, the temperature-adjusting baffle is welded together with the flue, but this structure relying on vertical hanging cannot meet the design requirements of the new structure. The economizer needs to be hung under the wall-clad header, and the flue The flue must be hung on the tail wall header at a certain angle, and the traditional economizer flue structure cannot realize the suspension of the inclined flue

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