BG63736B1 - Lock for delaying or obstructing the shifting of a broken part of a pipeline - Google Patents

Abstract

The lock is used for pipelines in which a high pressure fluid is running, such as pipelines in an electric power plant. The parts of the pipeline (2, 3) are interconnected by a connection part (8). Cambers (N) are fitted to the parts of the pipeline (1, 2, 3) coming out of a point of branching (V). Looked from the point of branching (V) behind the cambers (N) rings (4, 5, 6) are found, clamping the parts of pipeline (1, 2, 3) which are matching the cambers (N). Each ring (4, 5, 6), by one or more connection elements (7, 8, 9) is connected to at least one other of these rings (4, 5, 6). 5 claims, 2 figures

Description

The invention relates to a retainer for delaying or obstructing the displacement of a broken part of a pipeline that can be used in industry and energy, especially in enterprises and power plants with high pressure lines.

BACKGROUND OF THE INVENTION

In an industrial plant, such as a power plant, there are lines (pipelines) through which high pressure fluid flows. If such a conduit can be ruptured, the two conduit parts are displaced relative to one another at high velocity, which is conditioned by the back pressure of the high velocity fluid. Broken piping parts may get damaged if they fall on other pipes or structural parts.

From DE 196 49 923, a clamp is known which, after breaking a pipeline, holds the pipeline parts in their original place. With the known solution, it is provided that overlapping connecting elements (tensioning rods) will be installed at one possible permissible tear-off point, connecting the possible tear-off points to the pipeline bilaterally. Also described is a retainer that is fitted to the deflection of a pipeline. It is provided with a support, which is supported in the construction of the building. This branch is positioned by the branch of the pipeline and pressed against the support by the tension rods.

Such a retainer can only be secured to a deflection of a pipeline when there is a suitable construction of the building to support the support. However, in some industrial facilities there are branch points of pipelines that are not close to the construction of the building. In other facilities, the structures of the building are indeed close to the junction points, but they are not stable enough to absorb the backlash after the pipeline breaks.

SUMMARY OF THE INVENTION

It is an object of the invention to provide a retainer that can be mounted at one junction point without being supported and thus without using the structure of the building. The clamp after the pipeline break must be able to prevent the pipeline parts from falling at high speed on other structural parts and damaging them.

According to the invention, the problem is solved by the fact that there are thickenings extending from one branch point of the pipeline, so that, from the branching point, behind the thickenings surrounding the parts of the pipeline, the rings interact with the inclinations and that each ring is connected to at least one of the other of these rings through at least one connecting element.

In this way, the advantage is obtained that after the pipeline breaks, at the section of the junction point, all the outgoing portions of the pipeline are further fixed in their original location, without the pipelines having to abut or be fixed in other structural parts. parts, especially in the construction of the building. Preferably, the parts of the pipeline emerging from the branch point are fixed to one another. The lock according to the invention can thus also be placed where there is no suitable construction of a support structure in the vicinity.

According to an embodiment of the invention, three parts of a pipeline emerge from the junction point. The two parts of the pipeline are aligned with each other. The rings mounted on these two parts of the pipeline are connected to each other by a shell that serves as a connecting element, the shell enclosing the two mentioned parts.

This embodiment achieves the advantage that, after the pipeline is broken, the radial motion of the torn parts, which are aligned with one another, is limited. In particular, radial displacements can no longer be obtained. This provides the advantage that the fluid or medium does not spill in the axial direction. Another advantage is that the flowing medium in one direction falls mainly on the shell. In this way, high-speed spill-over environments can no longer damage the parts of the equipment under the shell. The shell does not actually leak, but it impedes high energy flow.

The three parts of the pipeline can be positioned, for example, T-shaped.

The shell protects particularly sensitive devices, which are often located close to, for example, a T-shaped branch opposite to the point of connection of the pipeline to another pipeline.

According to an embodiment of the invention, the ends of the shell above the two sections of the pipeline relative to each other and the contacting third portion of the pipeline leaving them are connected to each other by means of fixing elements.

These locking elements may be bolts. The fixing elements provide the advantage that further disruption of the pipeline further impedes the radial movements of the third part of the pipeline.

According to another example, the shell is closed by one or more flaps that leave a free cutout for the third portion of the pipeline projecting from each other relative to each other.

In this way, the advantage is that after one pipe rupture, the spillage is also prevented from spilling over so that the medium is spilled upward with high energy flow, so that the appliances installed there are protected. The medium may only slowly spill through a crack from the shell provided with the lids.

In a preferred embodiment of the retainer, a ring encloses the thicknesses attached thereto. Then they interact with a protective sheet, which is connected to the ring by the pipeline. Such mounting can be provided for each ring. This gives the advantage that the rings can be mounted closer to the junction point, without the thickness having to be very close to the junction point. The bumps must actually be farthest from one possible point of tear at the junction point. With this embodiment, fewer couplings and thus less material may be required than otherwise. Furthermore, the compact mounting increases the stability of the deflection element further.

For example, the thickness may be welded to the pipeline parts. According to another example, the protective sheet is welded to 5 rings. However, other fabrication methods are also possible for securing the bushings and rings, for example a chip removal method.

The proposed retainer according to the invention, in particular, achieves the advantage that, after a pipeline is broken in the branch section without having a support, the torn parts continue to remain in their present position. They cannot cause, through the effect of 15, backfire and secondary damage.

Explanations of the annexed figures

The retainer according to the invention is explained in more detail with the accompanying figures, of which:

Figure 1 is an exemplary embodiment of a retainer according to the invention in 25 portions of one branch point of a pipeline;

FIG. 2 is a shell that can serve, for example, as a connecting element to a T-shaped branch of a pipeline.

Examples of carrying out the invention

Figure 1 shows a branch point V from which the T-shaped three pipeline parts 1,2,3 per pipeline emerge. If one of these pipeline parts 1, 3, 3 breaks, the high pressure medium carried out in them. It represses the torn part, whereby it, when detached from its holder, can cause subsequent damage to the equipment. Pipeline rupture is more likely in the one-deviation section than in other parts of the pipeline system. It is therefore appropriate that the retainer be located in the section 45 of the junction point V.

At the junction point

Pipes 1,2,3 have thickeners N. From the junction point V, behind these thickeners N, there are rings 4,5,6, which, together with pipelines 1,2,3, interact with the thickeners N. In addition, each ring 4,5,6 is attached to at least one other ring

4,5,6 through at least one coupling element 7,8,9.

In case of a permissible rupture of a pipeline in the section of the connecting point V, the resulting backpressure force is transmitted from the pipeline part through the thickenings N onto the rings 4, 5 and 6. Since these rings are connected securely to each other through the connecting elements 7,8 and 9, the forces of the back-pressure are eventually absorbed by the coupling elements 7,8 and 9. After breaking, the pipeline parts cannot be displaced or displaced only slightly. The 5,6 rings capture the N-thickenings therein, which therefore interacts with the protection plates B, which may also be other metal parts. These safety plates B, respectively metal parts, from the piping parts 2 and 3 are connected to the rings 5 and 6. In this way, the deflection element is compact and particularly stable.

The coupling element 8, which is designed as a shell 10, is engaged in the T-shaped structure of the three pipeline parts 1,2,3, both of which are connected in a straight line with each other, i. are connected jointly to each other portions of pipeline 2 and 3 in the section of junction point V. Through the shell 10, the radial motions of the torn parts of the truncated parts of the pipelines 2 and 3 coaxially connected to each other are prevented or limited so that the torn parts not to move laterally more than their wall thickness. This does not result in axially directed leakage of the medium.

The shell 10 also achieves the advantage that, after the pipeline breaks, the downward or downward flow of the medium is controlled. It cannot fall into and damage other structural parts. The leakage flows past the shell 10 and is also poured at a relatively slower rate.

The ends of the shell 10 on the upper side of the two coaxially connected to each other portions of pipeline 2,3 and adjacent to the third portion of pipeline 1 exiting them are connected to each other by means of locking elements 11, for example through screws. These locking elements 11 prevent radial displacement of the third part 1 after the pipeline is broken.

One or more not shown in FIG. 1, the lid closes the upper openings of the shell 10, so that after breaking the pipeline, the upward flow of the medium is also captured.

Figure 2 shows a perspective view of the shell in Figure 1.

No structural structures, such as walls, to support the pipeline are required in order to secure the pipeline parts after the pipeline breaks, at the branch point V, at the retainer according to the invention. The deflection fixing element holds together the pipeline parts 1,2 and 3 without a support.

Claims (5)

Claims A retainer for delaying or preventing the displacement of a broken pipeline portion in which the pipeline portions (2, 31 are connected to each other by a connecting element (8), characterized in that at the outlet points (V) Pipes (1, 2, 3) are provided with thickenings (N) such that, as viewed from the junction point (V), rings (4, 5, 6) are located behind the thickeners (N), covering respectively a portion of the pipelines (1 , 2, 3) and interacting with the thickness (N), with each ring (4.5, 6) being connected to at least one n another of said rings (4, 5, 6) via at least one connecting element (7, 8, 9). A latch according to claim 1, characterized in that the three points of the pipeline (1, 2. 3) extend from the junction point (V), with the two parts of the pipeline (2, 3) aligned and the two connected to the two portions of the pipeline (2, 3) rings (5, 6) are connected to each other by a shell (10) serving as a connecting element and gripping both parts of the pipeline (2, 3). A clamp according to claim 2, characterized in that the ends of the shell (10) are connected to each other above the two coaxially arranged portions of the pipeline (2, 3) and the third portion of the pipeline (1) contacting them. locking element (11). Clamp according to one of Claims 2 or 3, characterized in that the shell (10) is closed by one or more flaps that provide a cutout free from the conduits (2, 3) coaxially mounted together. the third part of the pipeline (1). Clamp according to Claims 1 to 4, characterized in that at least one ring (4, 5, 6) engages the recesses (N) therein and that these recesses (N) interact with the protective sheet (B), which from the pipeline is connected to the ring (4, 5, 6).