Frame structure

Abstract

A frame structure provided with a ring beam (9) that transmits the load on an element rotation type air preheater (8) that is a newly-installed implement to a load support point (P1) on an element fixed type air preheater that is an already-installed implement on a frame (6), wherein leaving the already-installed beam member as it is, the basic load transmitted to the leg of a column member is made to be substantially the same as in the period of construction before remodeling.

Description

technical field [0001] The present invention relates to a frame structure for replacing an existing machine installed on a frame composed of a column member and a beam member with a new machine of a different form. Background technique [0002] Generally, an air preheater for preheating air is installed in the boiler device, and the air introduced into the boiler body is preheated by using the heat of exhaust gas discharged from the boiler body. However, the air preheaters that are used as the air preheater mainly include: fixed component air preheaters (so-called ロ-テムュ-レ type air preheaters) and component rotary air preheaters (so-called ウンクストュュ-レ type air preheaters) Air preheater). [0003] figure 1 It is a plan view showing an example of a frame structure in which a component-fixed air preheater is installed as an existing machine. The frame is formed by erecting beam members 3, 4, and 5 between vertical column members 1, 2. 6. On the frame 6, install the fixed air pr...

AI Technical Summary

Problems solved by technology

[0006] In the past, such construction was not carried out at all, and there was no known patent document

[0007] As mentioned above, when the existing beam members 4, 5 are removed and other beam members are additionally installed, it is difficult to make the foundation load transmitted to the feet of the column members 1, 2 the same as the original state of construction before reconstruction. Exactly the same; On the other hand, because cross beam is penetrated in the limited narrow space in frame 6, thereby the horizontal plane of the cross beam member that is additionally set has to be higher than established cross beam member 3, moreover, also must and as the parts of new machinery The long-term and short-term horizontal forces generated at the load support points of the rotary air preheater are installed in such a way that the horizontal trusses are protruded outwards that it is impossible to use the established maintenance scaffolding (Fig. not shown)

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