DE1069438B - Flexible pipe connection - Google Patents

Description

The invention relates to a flexible pipe connection with one welded between two sleeves Corrugated pipe section and stiffening plates arranged crosswise inside the pipe connection.

It is known to interpose such corrugated pipe sections at those points in a pipeline where a bend occurs and should be allowed.

But corrugated pipe sections not only have the desired one Property to allow an inclination of the pipe axes of the adjoining pipe parts, rather they also have the undesirable property that the axes of the subsequent pipe sections can move against each other because the corrugated pipe section does not have the required dimensional rigidity.

To stiffen such corrugated pipe sections, stiffening plates are used, which extend through the corrugated pipe section extend therethrough and attached to connecting sleeves of the adjoining pipe sections so are. ·

In a known pipe connection with a corrugated pipe section, there is a stiffening plate in one diameter plane provided, which extends through the corrugated pipe section and with its side edges »5 is welded to the connecting sleeves of the connecting pipe sections. In the area of the pipe sleeves stiffening plates are provided in this known pipe connection, which are perpendicular to of the first-mentioned plate and how these are welded inside the sleeves at the edge. This kind of Stiffening has the effect that the first-mentioned stiffening plate can only bend in that part which is free of the stiffening plates lying perpendicular thereto, d. H. only within the section of certain space.

In this known pipe connection, a bend is only about one perpendicular to the continuous one Stiffening plate in lying diameter plane possible. A bend in the plane of the continuous 4 " Stiffening plate is not possible because of the high section modulus of the plate.

"Bend in a plane" is to be understood here and in the following as a bend which is around a surface normal of this plane takes place.

The aim of the invention is to provide a flexible pipe connection to create which has sufficient dimensional rigidity and is flexible in all diameter levels is formed, wherein the resistance in certain diameter planes can be greater than in others.

For this purpose, a flexible pipe connection is welded between two sleeves Corrugated pipe section and stiffening plates arranged crosswise in the interior of the pipe connection Flexible pipe connection

Applicant:

The English Electric Company Limited,
London

Representative: Dipl.-Ing. C. Wallach, patent attorney,
Munich 2, Kaufingerstr. 8th

Claimed priority:
Great Britain 6 March 1956

Harold Greenhow, Peter Dawson

and Douglas Frank Seymour,

Whetstone, Leicester, Leicestershire (Great Britain) have been named as inventors

of the invention designed in such a way that stiffening plates are welded to the sleeves in a diameter plane in the area of the sleeves and that in a further stiffening plate is arranged on a diameter plane lying perpendicular to the stiffening plates that extends over the corrugated pipe section and exclusively on the two stiffening plates is welded on.

For the invention, it is of course irrelevant whether the continuous stiffening plate between two stiffening plates, which only reach half the diameter, are inserted on both sides and it is welded to these whether those lying inside the sockets and welded to the sockets Stiffening plates go over the entire diameter plane and that goes through the corrugated pipe section extending stiffening plate slotted, pushed over the aforementioned stiffening plates and is welded to these.

This design ensures that the pipe connection bends in one plane of the diameter can, which is perpendicular to the plane of the stiffening plates extending through the corrugated pipe section lies. In this case, as in the known training, the stiffening plate is inside of the corrugated pipe section bent.

However, the design according to the invention still allows the pipe connection to be bent in the Level of the stiffening sheet penetrating the corrugated pipe section. In this case a

Claims (1)

Twisting of those stiffening plates that lie within the sleeves and that the corrugated pipe section Carry penetrating stiffening plate. Because of the high section modulus in the direction of deformation With this stress, a change in shape of the stiffening plate penetrating the corrugated pipe section does not occur. There is a bend in the pipe connection according to the invention is possible in the two main planes that are perpendicular to one another, can of course by superimposing the deformations described, a bend occurs in all other planes. Further advantages and details of the invention emerge from the description of an exemplary embodiment with reference to the drawing. In the drawing shows Fig. 1 is an axial section through an inventive Pipe connection, Fig. 2 is an axial view of a pipe connection according to the invention. The ernndungsgetnaße pipe connection consists of two short pipe sleeves 10 with relatively stiffer Wall, which are connected by a welded-in corrugated pipe section consisting of four endless Pipe rings 11 consists. These tubular rings are slotted on their inner circumference in the longitudinal direction and through Pipe sections 12 connected to one another with a relatively thin wall. The sleeves 10 are with the subsequent pipes 13 and 14 welded. A stiffening plate 15 extends through the corrugated pipe section in one diameter plane, which is reduced in thickness at its part extending between the two sleeves 10. The width of the stiffening plate 15 is slightly smaller than the inner diameter of the sleeves. The stiffening plate 15 is welded to stiffening plates 16. 17, those on opposite sides at the end of the stiffening plate 15 are perpendicular to the plane of this sheet and are welded to the sleeves 10 at the end are. The stiffening plates 16, 17 are shaped so that high local stresses are avoided in them will. According to a further embodiment, the stiffening plates 16, 17 of each sleeve can be made in one piece be formed, the stiffening plate 15 is slotted at both ends so that it is perpendicular to it standing, within the sleeves welded stiffening plates includes fork-shaped. It is also possible to produce the stiffening plate 15 as a single part and not with the sleeves 10 fastened cross bars to be attached. I 'λ τ [·: ν τ λ ν s ι »R υ c. η: Flexible pipe connection with a corrugated pipe section enclosed between two sleeves and stiffeners arranged crosswise in the interior of the tube, characterized in that im In the area of the sleeves (10), stiffening plates (16, 17) are welded to the sleeves (10) in a plane of the diameter are and that in a perpendicular to these stiffening plates (16, 17) lying diameter plane a stiffening plate (15) is arranged, which extends over the corrugated pipe section extends and is only welded to the two stiffening plates (16. 17). Considered publications:
U.S. Patent No. 2,341,066,2,418,800. 1 sheet of drawings