RU2758400C2 - Crimping device for heat insulation of pipeline - Google Patents

Abstract

FIELD: heat insulation.

SUBSTANCE: invention is intended for lifting and pre-crimping heat insulation and protective materials to a pipeline. It can be used for heat insulation of pipelines with foam plastic and for the preparation of duckers. A crimping device for heat insulation of a pipeline is characterized by that it consists of a U-shaped support frame, the structure of which includes support arc-shaped racks with roller wheels for rolling through the pipeline, a movable shaft with tension reels and a drive lever. On the outer part of reels, there are two fixing devices for fixing on them one soft crimping device made in the form of tapes or ropes. In the center of the outer part of the longitudinal beam of the U-shaped frame, a metal loop is attached for mounting on a hook of a crane. In the case of using the crimping device, a team of insulators performs the necessary work on heat insulation and preparation of duckers autonomously without the use of crawler cranes and pipelayers.

EFFECT: obtaining a crimping device for heat insulation of a pipeline.

1 cl, 1 dwg

Description

1. Field of technology.

The invention (hereinafter referred to as the Crimping device) relates to mechanical lifting devices of the manual drive. The main purpose is to ensure a snug fit of foam sheets or jersey to the pipeline, for their further fastening with the help of metal tapes or wire. The greatest effect from the use of Crimping devices will manifest itself when they are used in the process of thermal insulation of pipelines and preparation of siphons.

2. State of the art.

The crimping device is mainly intended for use in the construction process of various pipelines. If you give an example of analogs, then today I know of two methods of preliminary crimping of sheets of penoplex and a jersey:

- a traverse is hung on the hook of a heavy pipelayer or a crawler (wheeled) crane, intended for installation on the pipeline of weights, and ropes are attached to it. The ropes are led under the pipeline, sheets of foam plastic, or jerseys, are applied to them. The pipelayer lifts the traverse, the ropes are pulled, thereby providing the possibility of further crimping with metal bands or wire;

- if the cranes, for various reasons, cannot approach the pipeline, this operation is performed by insulators who climb onto the pipeline and manually pull the ropes with the corresponding materials laid on them in the lower and middle parts. It is quite clear that in terms of the rationality and technological effectiveness of the 21st century, comments are superfluous.

When using the Crimping device, the technical problem of a more voluminous and reliable pre-crimping of foam sheets and jersey is solved. In addition, heavy cranes are freed up that can be used for their intended purpose and the hard and ineffective manual labor is reduced, since only one person is required to operate the Crimper with little physical effort.

3. Disclosure of the essence of the invention.

In essence. The crimping device, as a technical solution, refers to the Products, and since it consists of several component parts, interconnected by assembly operations at the manufacturing plant and located in a functional and structural unity, it is a Device. The main essential feature of the Crimping device is the ability to pre-crimp foam sheets and liners, for their further fixing with metal strips or wire, without the use of heavy equipment and manual labor. Thus, the problem of lack of technology in the construction of pipelines is solved and a much more effective and high-quality technical result from the work of insulators is manifested.

In the case of using the Crimping device, a causal relationship appears, solutions to several technical problems, with the manifestation of a technical effect. This will be completely understandable to specialists of potential manufacturers, but to a greater extent to specialists and workers involved in the construction of pipelines.

To realize the functional purpose, in the manufacture of the Crimping device, the structural unity of several parts and parts produced at the manufacturer is used. The basis of the unity of the crimper is the U-shaped metal support frame. It consists of a longitudinal beam and two transverse struts

(The option of an arcuate support frame is also possible). To the two lower parts of the transverse posts, by means of welding, are attached arched metal support posts, in the inner part of which are fixed wheels-rollers, intended for rolling the Crimping device along the pipeline. Cross posts consist of two parts, which are interconnected by means of a metal adjusting double-sided screw with multidirectional threads. The screw has a left-hand thread on one side and a right-hand thread on the other. The screw is screwed into the threads that are located in the inner part of the cross posts. The screw is designed to adjust the height of the transverse struts, since in the process of thermal insulation one of the transverse struts will be on the already fixed sheets of foam, or a jacket, and the other on the pipe. When there is a difference in height, the height of the racks is adjusted using screws, thereby ensuring uniform crimping of the foam sheets and jersey. In the inner part of the U-shaped support frame there is a movable metal shaft. One end of the shaft is pressed into the bearing, which, in turn, is pressed into one of the transverse struts. The second end of the shaft is pressed into the ratchet mechanism, pressed into the other transverse rack. Outside of this transverse rack, the drive lever of the ratchet mechanism of the movable shaft is removed, and a "flag" for switching the direction of rotation of the shaft is set on the rack itself. The ratchet mechanism is a mechanical device that fixes the one-way direction of its rotation. On the movable shaft, at a certain distance, tension drums are pressed in, but a variant of movable drums with appropriate fixation is also possible. On the outer part of the drums, there are two fastening devices of the "carabiner" type, which are used in mountaineering. From different sides (passing under the pipe) on the fastening devices of the drums, with the help of loops at both ends, one soft crimping device is fixed. These devices can be either narrow belts made of synthetic or natural materials, or ordinary thick ropes. In the center of the outer part of the longitudinal beam of the U-shaped support frame, by means of welding, an arcuate metal loop is attached. It is designed to be attached to a crane hook during installation, lifting, or transportation of the Crimping Device.

All dimensions of the U-shaped support components and the location of the tension drums will depend on the pipe diameter and the length of the materials being crimped.

4. Brief description of the drawings.

Crimper U-Frame FIG. 1 consists of the following components, which are an integral part of the Invention:

1. Longitudinal beam.

2. Cross racks.

3. Adjusting screws.

4. Arcuate support legs.

5. Castor wheels.

6. Movable shaft.

7. Tension drums.

8. Bearing.

9. Ratchet mechanism.

10. Lever of the drive of the ratchet mechanism of the movable shaft.

11. Loop for fastening to the hook of the crane.

5. Implementation of the invention.

According to general concepts, the Crimping device refers to the lifting mechanisms of the manual drive. Its essential feature is the ability to lift and tightly crimp the materials required for thermal insulation and lining of pipelines. Lifting and crimping is carried out by soft crimping devices passed under the pipe and fixed on the tension drums of the movable shaft.

Any crane and even an excavator lowers the Crimper onto the pipe. Soft crimps are passed under the pipeline. On soft crimping devices passing under the pipe in a weakened state, sheets of penoplex, or a jersey, are applied. Lifting and crimping occurs by rotating the handle of the drive of the ratchet mechanism of the movable shaft by one of the insulators located on the pipeline. The tension drums, mounted on the movable shaft, begin to rotate, winding on themselves soft crimping devices, which in turn press the corresponding materials tightly against the pipe. This allows the insulators to securely fix with a metal tape or wire heat-insulating, or all kinds of protective materials on the pipeline. Without waiting for the end of the final crimping operation, the Crimping device is rolled through the pipeline by just one worker for subsequent work.

Thus, the technical result is clearly presented when using the particular form of the essential feature of the Invention. The technical results and safety of work include the following:

- Freedom of heavy cranes from unusual functions and the possibility of using them for their intended purpose

- The autonomy of the actions of the teams of insulators, independent of the presence or absence of any equipment, its technical condition and functionality

- Reducing the time of work, since not every crane operator is able to determine the tension force and this leads to the breakage of rather fragile crimping devices (as a rule, these are ordinary more or less thick ropes), they have to be reinforced, and in the cold this time

- Compared with the use of manual labor, the issue of the quality of the preliminary crimping is solved for the better

- And, finally, the safety issue is resolved, since, being on the pipe without any support, the insulators often lose balance and fall from the pipeline, while in the case of using the Crimping device, it simultaneously serves as a support for the operator, who activates it.

Claims (1)

A crimping device for thermal insulation of a pipeline, characterized by the fact that it consists of a U-shaped support frame, the design of which includes support arcuate stands with roller wheels for rolling along the pipeline, a movable shaft with tension drums and a drive lever, while the outer part of the drums is located two fastening devices for fixing on them one soft crimping device made in the form of tapes or ropes, a metal loop is attached in the center of the outer part of the longitudinal beam of the U-shaped frame for fastening to the crane hook.

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