RU62443U1 - PIPELINE JOINT BALLASTING DEVICE - Google Patents

Abstract

The utility model relates to pipeline technology, namely, to the joints of ballast-coated pipelines laid on the bottom of a reservoir or in flooded soils. A device for ballasting a pipe joint with a ballast coating, consisting of two concrete half rings having longitudinal steel ends, forming a concrete ring after installation and fixing in the joint space, each half ring having reinforcement in the form of a steel mesh half ring welded to the longitudinal steel ends from high-quality rental. 6 PF, 7 of FIG.

Description

The utility model relates to pipeline technology, namely, to the joints of pipelines with ballast coating, laid on the bottom of a reservoir or in wetlands.

A device for ballasting pipelines, consisting of reinforced concrete sectors and connecting elements between them [1]. A disadvantage of the known device is that the connecting elements in the form of wire loop-hooks are inconvenient for connection and there is a danger of their separation, for example, when the sectors are exposed to force from ice, trawls, etc.

A device for ballasting pipelines, made in the form of consisting of two metal finned and concreted half rings, interconnected by bolts and nuts after installation on the pipe [2]. The disadvantage of this device is the complexity and high complexity of manufacturing a metal frame.

A device for ballasting the joint of the pipeline when it is sealed [3, Fig.2-6, PF 8, 9], consisting of two concrete half-rings installed when sealing the joint of the pipeline and first fixed with special fastening devices, and then self-hardening binder material, poured in the form installed on the assembled joint.

The disadvantage of this device is that the concrete half-rings are fixed at the pipe joint by a self-hardening binder material, poured into a mold installed at the joint, which is an expensive and time-consuming process.

A device for ballasting pipelines [4, 5, 6] (prototype), consisting of two concrete half rings, on the one hand interconnected by a flexible wire, the ends of which are poured in concrete, and on the other hand having means of fastening to the pipe, for example , via

threaded connection, while the ends of the concrete half rings are protected by metal elements that are installed in the form before pouring concrete.

The disadvantage of this device is that the concrete half rings are not reinforced and the metal elements do not have reliable fastening to the ends of the concrete half rings.

The technical problem posed during the development of a utility model is the creation of a device for ballasting a pipe joint, quickly and reliably installed and fixed in space of a joint with a ballast coating.

A device for ballasting a pipe joint consists of two concrete half rings forming a concrete ring after their installation and fixing in the joint space; each half-ring has reinforcement in the form of a steel mesh half-ring welded to longitudinal steel ends from long products having the form of a strip, or a brand, or a corner, or a channel. The longitudinal steel ends of one side of the half rings are connected by at least one rotatable loop, and the ends of the opposite side have means for mutual fastening. Concrete half rings have steel brackets on the outer cylindrical surface that protrude from the concrete into the recesses, while the ends of each bracket are welded to the mesh half rings of the reinforcement. The inner surface of each of the half rings is covered with a polymer material. On the outer cylindrical surface of the half rings, a tape of thermoplastic polymeric material can be glued, the width of which is more than the width of the joint of the pipeline. Strips of a polymeric material can be glued to the longitudinal ends of one of the half rings, ensuring the joint tightness after ring assembly.

Distinctive features of the device, providing quick fastening at the junction and reliability, are the presence in each half-ring of reinforcement in the form of a steel mesh half-ring welded to longitudinal steel

ends of long products. An additional effect is provided by the polymer coating of the inner surface of each of the half rings, which makes it possible to install the device on the pipe without an additional gasket protecting the insulation.

Figure 1 shows a device for ballasting a pipeline of reinforced concrete half rings.

Figure 2 is a section aa in figure 1.

Figure 3 - steel mesh half-ring reinforcement device for ballasting the joint of the pipeline.

Figure 4 is a view In figure 3.

In Fig.5 - view C in Fig.3.

Figure 6 - steel mesh ring reinforcement.

In Fig.7 - a device installed in the joint space of the pipeline.

A device for ballasting a pipe joint consists of two concrete half rings 1a and 1b (Fig. 1), installed and fixed in the joint space of pipes with a ballast coating (Fig. 7). Each half ring 1a and 1b has reinforcement in the form of a steel mesh half ring 2, the ends of which 3a and 3b are welded to the longitudinal steel ends 4a and 4b. The longitudinal steel ends 4a and 4b may be in the form of a channel or a corner. Longitudinal steel ends on one side of the half rings are connected by at least one rotating loop 5, and on the other hand, by fasteners 6. Concrete half rings have brackets 7 made of wire or strip protruding from concrete into recesses 8 on the outer cylindrical surface, while the ends of each bracket are welded to the grid 2 of the reinforcement (figure 4). The inner surface of each of the half rings is covered with a polymer material 9, which protects the insulating coating of the steel pipe (Fig. 7) or the surface of the polymer pipe from damage by concrete. On the outer cylindrical surface of the half rings 1a and 1b after their installation and fixing in the joint space, a tape 10 (Fig. 7) of thermoplastic can be glued

a polymer material whose width is greater than the width of the joint of the pipeline. On the longitudinal ends 4a and 4b of one of the half rings (1a or 1b), strips 11 made of a polymeric material can be glued, which ensure the joint tightness after ring assembly. A device with polymer material preliminarily deposited on the inner surface of half rings makes it possible to accelerate its assembly. Due to the exclusion of the installation of gaskets on the protective coating of the pipe joint.

To install the device on the joint, the fastener 6 is removed (Fig. 1), the device is gripped by the brackets 7 with lifting equipment (not shown). When lifting the device, the half rings 1a, 1b rotate in opposite directions, opening the ring, and when installed on the joint and loosening the lines (not shown), the half rings converge, covering the isolated ends of the joint of adjacent pipes in the joint. After compression, the half rings 1a and 1b install and tighten the fasteners 6, and then seal and isolate the joint, welding the ends of the polymer tape together and welding the edges of the tape from a thermoplastic polymer material to the polyethylene pipe shells.

The design of the proposed device allows ballasting of the joint in minimum time compared to ballasting using known devices and methods that use the filling of ballast or binder material under the sleeve, covering the space of the joint.

Information sources

1. Patent RU No. 13830 U1 dated 12/30/1999.

2. US patent No. 2662552 from 6.10.1952.

3. Application WO 03/095887 of 04/30/2003.

4. US patent No. 2791019 from 1.03.1954.

Claims (6)

1. A device for ballasting a pipe joint with a ballast coating, consisting of two concrete half rings having longitudinal steel ends, forming a concrete ring after installation and fixing in the joint space, characterized in that each half ring has reinforcement in the form of a steel mesh half ring welded to the longitudinal steel ends from long products. 2. The device according to claim 1, characterized in that each longitudinal steel end face of long products has the shape of a channel or a corner. 3. The device according to claim 1, characterized in that the longitudinal steel ends of one side of the half rings are connected by at least one rotating loop, and the ends of the opposite side have means for mutual fastening. 4. The device according to claim 1, characterized in that the concrete half rings have steel brackets on the outer cylindrical surface that protrude from the concrete into the recesses, while the ends of each bracket are welded to the mesh half rings of the reinforcement. 5. The device according to claims 1 to 4, characterized in that the inner surface of each of the half rings is coated with a polymer material. 6. A device according to any one of claims 1 to 4, characterized in that gaskets of polymer material are glued to the longitudinal ends of one of the half rings.