DE1244199B - Pipe wall bracket for steam generator - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Ci .:

F22b

German class: 13 g - 7

Number: 1244199

File number: D 348951 a / 13 g

Filing date: December 7, 1960

Opened on: July 13, 1967

The invention relates to a pipe wall bracket for steam generators with vertical pipe walls made of There are horizontally lying pipe straps from which pipes are pulled out and pipe loops form.

In boilers that are started up frequently and quickly, the phenomenon is particularly pronounced that Differences in expansion between the already hot pipe walls inside and the still cold outer supporting structure occur that can lead to damage and malfunctions.

There are already known constructions, the connection between the pipe wall and the supporting structure is kept moveable by using different transmission members. The solution to the posed The task is usually only partially achieved by these brackets. Besides, the effort is significant in additional proppants.

It is also known a pipe wall bracket for steam generators with vertical pipe walls that are made of There are horizontally lying pipe bands, with pipes pulled out of the heating surface and Form pipe loops, which are in front of the heated pipes and attached to the wall by brackets are. However, these stirrups are subject to uncontrollable scaling. Besides, there are only certain Pipes pulled out of the heating surface. This requires different resistances in the pipes, which can lead to malfunctions in the case of high heat loads.

The object of the present invention is to provide an improved pipe wall support for Steam generator with vertical pipe walls, which consist of horizontally lying pipe bands. she consists in that the pipe loops lie behind the pipe walls to be held and each pipe as a pipe loop is laid in the vertical support iron of the boiler. A major advantage of this arrangement is the fact that these loops serve as a support for the pipes in front of the pipe band in question, so that no additional bracket is required. The entire pipe system is supported with the least amount of effort on proppants themselves. It is also essential that each tube be pulled out is, so that there are equal resistances in all pipes. Another advantage of this bracket consists in the fact that the U-irons are heated by the tubes at the same time and thus the same Assume temperature like the pipes in front of them. This means that there are no differences in expansion and thermal stresses when starting up and shutting down the boiler. At the same time it offers itself Pipe wall bracket for steam generator

Applicant:

German Babcock & Wilcox steam boiler works Aktien-Gesellschaft, Oberhausen (RhId.)

Named as inventor:

Peter Schaloske, Oberhausen (RhId.)

a good constructive option for the sheet metal cladding, which is also tension-free against the expansions can follow.

In the figures, the pipe wall bracket is shown as an example and in a simplified manner. It shows

F i g. 1 shows a cross section through the steam generator with the brackets attached to the circumference,

Fig. 2 shows the schematic arrangement of the withdrawn Pipe grinding,

F i g. 3 a pipe loop on an enlarged scale,

F i g. 4 shows a longitudinal section through the pipe loop from FIG. 3 with the bracket,

F i g. 5 shows a cross section through the pipe loop and the bracket.

As shown in FIG. 1, the brackets are evenly distributed around the circumference of the boiler arranged. They consist of the U-iron 1 and the pipe loops 2 located in them, which consist of the Heating surface 3 are drawn outwards. In Fig. 2 shows the schematic pipe arrangement. Included changes the height of the node of the loops, due to the different heights of the individual Pipe layers. After the pipe band has been reversed into the next lower or higher layer, the corresponding loop formation of the individual pipe layers in the lower or higher level.

In Fig. 3 and 4 the function of a pipe loop as a support for the other pipes is shown. The end The pipe pulled out of the plane of the heating surface pipes 3 becomes a pipe loop in the vertical U-iron 1 2, which is anchored at the junction by a retaining plate 4 on the U-iron. In the In the middle of each loop, the webs 5 and 5 'are welded, between which the support plates 6 and 6 'are located, which are advantageously connected to the vertical lengths of the pipe loops 2 via the webs 5 and 5' are welded and which receive the case handles 7 of the pipes 3 to be held, the pipe loop

709 610/66

fen 2 are anchored at the junction by holding plates 4 on the vertical support iron. At the top and For structural reasons, the case handles are attached to the lower arch of the loop with a simple bracket 8 and 8 'replaced. The number of pipe layers to be picked up by a pipe loop depends on the structural conditions of the boiler. The sheet metal cladding 9 is attached to the U-shaped iron on the outside

Claims (2)

Patent claims: 1. Pipe wall bracket for steam generators with vertical pipe walls that come out horizontally lying pipe straps consist of which pipes are pulled out and pipe loops form, characterized in that the pipe loops (2) behind the to be held Pipe walls lie and each pipe as a pipe loop (2) in the vertical support iron (1) of the Boiler is relocated. 2. Pipe wall bracket according to claim 1, characterized by support plates (6) welded to the vertical lengths of the pipe loops (2) for receiving the case handles (7) of the pipes (3), the pipe loops (2) at the junction through webs (5) Retaining plates (4) are anchored to the vertical support iron (1). Considered publications:
French patent specification No. 855 494,
718. 1 sheet of drawings 709 610/66 7.67 © Bundesdruckelei Berlin