DE1601779A1 - Heating surface wall element for steam generator - Google Patents

Description

"Heating surface wall element for steam generator".

The invention relates to a heating surface wall element for steam generators.

It is sometimes the case with heating surface wall elements for steam generators necessary, the pipes led in one plane further continuation to summarize pipe groups and these in other wall levels, different to the original Wall level to continue. As an example, consider the continuation of the rear wall of the ascending flue gas flue of a steam generator pointed across the cross train. A division of the pipes of the rear wall is in the area of the Transverse pull necessary to create the necessary passages for the flue gases there. The difficulty with such Constructions is that the bent out of the wall plane and combined in groups as Support tubes can only be used in a limited load range. In many cases, the overall construction makes one. Steam generator, however, it is necessary to use the bent pipes with the full load-bearing capacity.

The object of the invention is to provide a heating surface element for steam generators in which the largest part of the pipes bent out of the plane of the wall to full LasfcauinahniH can be used.

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To solve this problem, it is proposed according to the invention that to combine the pipes lying next to one another in the pipe wall plane in groups, to bend them out of this and to be continued in several planes running perpendicular to the wall plane, with at least two adjacent planes Pipes of a pipe group are enclosed in the area of their bend by a pipe section and firmly welded to this and form support tubes, while the remaining tubes of the tube group are bent out and continued as unloaded tubes.

The particular advantage achieved with the invention is that the tubes bent out of the plane of the wall are unloaded in the deflection area and the load is exclusively is absorbed by the pipe section pushed over. This makes it possible to use considerably more tubes of the Use the heating surface element as support tubes.

The invention is illustrated with reference to the drawings Figures explained in more detail using a possible embodiment:

Fig. 1 shows a view of a heating surface according to the invention

element.
FIG. 2 is a section along the line U-II of FIG. 1.

The heating surface control element consists of individual tubes 1, which arranged side by side in a single wall plane. In order to use the construction example mentioned at the beginning, namely the Continuation of the tubes 1 over the transverse traction of a steam generator to pull it back, it is necessary for the purpose Formation of flue gas passages in the transverse draft to combine the tubes 1 into tube groups and bending out of the original wall plane in different, usually perpendicular to this extending planes to continue. In the exemplary embodiment Figures 1 and 2 each consists of a tube group of three individual tubes. The pipe is la im Area 2 bent out of the original wall plane and

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continued unencumbered. The tubes Ib and Ic, on the other hand, are enclosed by a tube piece h in the bent area 3 and are welded to the tube piece k in the areas 5 and 6 or 5 'and 6'.

BATH ORIGINAL 0098 3 2/0026

Claims (1)

11.1.1968 Pa 6801t Kl / Bo Pat tan saying Ileizflächewandelement for steam generator, thereby characterized in that the bores lying next to one another in the pipe wall plane are grouped together, bent out of this and perpendicular in several ways to the wall plane extending planes are continued, with at least two adjacent tubes of a tube group enclosed in the area of their bend by a piece of pipe and are firmly welded to this and form support tubes, while the remaining tubes of the tube group as unloaded pipes are bent out and continued. BATH ORIGINAL 009882/0026