DE1053524B - Double-shell turbine, the outer casing of which is welded from sheet metal - Google Patents

Description

The invention relates to a double-shell turbine, the outer casing of which is welded from sheet metal and whose inner housing rests centrally on horizontal surfaces of the outer housing so that it can move with heat.

The tinny outer casing tends to take the weight of the inner casing, which is the case with large. Turbines reached about 100 t, easily to deform, and the more so the larger the horizontal and the vertical distances between the surfaces on which the inner housing rests on the outer housing lower part, of the surfaces with which the outer housing rests on the foundation.

This is to avoid the invention. It is based on the idea of keeping those distances as small as possible hold, i.e. the forces generated by the weight of the inner housing on the shortest route to the foundation to direct, and on the known knowledge that for the sake of good centering the surfaces on which the inner housing rests, should be in the axial plane if possible.

The invention consists in that the outer housing rests in a manner known per se in a plane close to the axis on the foundation and that its surfaces on which the inner housing rests, perpendicularly over those surfaces with which the outer housing on the Foundation rests, arranged and separated from them only by the wall thickness of the outer housing.

This ensures that the weight of the inner housing is introduced into the foundation in the shortest possible way, whereby any movement between the surfaces on it can be neglected, especially since only small temperature differences between the outside atmosphere *
Occur.

The invention can be further equipped in that the outer housing around the just described Forms pockets around surfaces into which the support arms of the inner housing protrude; this has the The advantage that the diameter of the outer housing can be kept small.

An exemplary embodiment is shown schematically in the drawing reproduced the invention.

Fig. 1 shows an axially normal section through the outer housing, and

FIG. 2 shows the top view according to the section AB in FIG. 1.

and the support on this

their outer casing made of sheet metal

is welded

Applicant:

LICENTIA Patent-Verwaltungs-G. mb H. _r Hamburg 36, Hohe Bleichen 22

Gerhard Wittstock, Berlin,
has been named as the inventor

In Fig. 1, the support arm 14 is firmly connected to the inner housing; the welded outer housing21 rests on the turbine foundation 13; the support arm 14 protrudes into the pocket 16. In Fig. 2 are two support arms 14 and 15 are shown which are fastened in the pockets 16 and 17 of the outer housing 21.

Claims (2)

Patent claims: 1. Double-shell turbine, the outer casing of which is welded from sheet metal and the inner casing rests centrally on the horizontal surfaces of the outer housing so that it can move with heat, characterized in that that the outer housing (21) rests in a manner known per se in a plane close to the axis on the foundation (13) and that its surfaces are on which the inner housing rests, perpendicular to those surfaces with which the outer housing rests the foundation rests, arranged and separated from them only by the wall thickness of the outer housing are (Fig. 1). 2. Turbine according to claim 1, characterized in that the inner housing is known per se Way by means of support arms (14, 15) rests on the supporting surfaces of the outer housing and around these surfaces, the outer housing forms pockets (16, 17) into which the support arms protrude. Considered publications:
German patent specification No. 634 040. 1 sheet of drawings