RU186031U1 - PIPELINE SEALER - Google Patents

Abstract

The invention relates to devices for enclosing a part of a pipeline and can be used, for example, during repair, diagnostic or welding work. Essence: the sealant is a welded steel structure with galvanic coating and includes a flat jumper (1) having a lower part made in the shape of a semicircle and repeating the shape of the pipe. A curved rectangular support plate (9) with ends bent inward is welded to the end of the jumper (1). At least two rods are welded to the outer surface of the base plate (9). Rubber cords (6) are fixed between the rods at the ends of the support plate (9) by means of pressure plates (5) and nuts (4). A thrust bearing (7) for the hydraulic cylinder (2) is welded from the inside of the jumper (1), at the end of which a rod with a stop (3) is placed. The thrust bearing (7) has a recess (8) for installing the pump in the hydraulic cylinder (2). A hole (10) is made on the jumper (1), into which a fitting is inserted to secure the drainage hose to it. Effect: ensuring safety during repair work. 6 c.p. f-ly, 3 ill.

Description

The proposed utility model relates to the field of public utilities, intended for the operational closure of part of the piping of the water supply system during repair work. It allows you to fence and drain the pipe section during repair, diagnostic and welding works, due to incomplete emptying of the entire pipe before starting work.

There are various technical solutions in this area.

A device for blocking and cleaning sewer and water pipes (see RU patent for the invention No. 2144853, IPC BVB 9/032, publ. 07.01.2000). The device contains a rubber-cord casing installed inside the pipe being cleaned, a source of the working fluid and fittings. Additionally equipped with a pipe-pipe located coaxially with the pipe being cleaned. Moreover, the cavity of this pipe and rubber-cord membrane communicated through the valve. A shut-off valve is installed at one end of the pipe-pipe, and the other end of the pipe is connected to the source of the working fluid. The device is equipped with a rod-stop, the pipe-pipe is rigidly connected to the rubber-cord sheath.

The disadvantages of the known device are: instability of the shell to mechanical punctures and hot water. Due to the large length of the device, which ensures tightness and tightness of adhesion of the shell to the surface of the pipe, it is necessary to cut a hole in the blocked pipe of sufficient length to introduce a plug, but much larger than that necessary for welding.

Also known is a sealant for blocking pipes, which is adopted as a prototype (http://tdm-t.by/oborudovanie-dlya-truboprovodov/pnevmaticheskie-zaglushayushchie-ustroystva/germetizator-pzu), which is a deaf pneumatic plug having a cylindrical shape with placed on the sides are flat bottoms. The functional components are a valve with a bracket and an eye, which are mounted on opposite sides of the pneumatic device. Made of stainless steel, they allow you to bleed the accumulated air and facilitate the flow of water. The valve fixed on the bottom with the help of a bracket (or earrings) comes into motion and fills the rubber shell with compressed air. An eye tightly fixes a pneumatic plug in the pipe and prevents water or air from entering the free compartment. Pneumatic inflatable plugs for pipes are installed by means of a bracket, which is lowered through the well into the pipe of gravity sewer networks and fixed with a cable to the bracket. The silencing device is fixed in water and heating networks through special operating openings in the pipes.

The disadvantages of the prototype are that the known device has the shape of a cylinder, the length of which is several times the diameter of the blocked pipeline, which requires a large technological hole in the pipeline during repair work. In the event of a rupture of such a plug, this can lead to personal injury. The walls of such a silencing device can be destroyed by contact with molten metal during welding on a damaged section of the pipeline.

Thus, the technical problem that currently exists is the lack of simple and reliable sealants for water pipes that could be used during repair work on water supply pipelines. The creation of the proposed technical solution is aimed at solving this problem, namely, at creating an improved design of the pipeline sealant with a simplified design, which ensures efficient and reliable overlapping of the pipeline during repair work.

The technical result consists in simplifying the design, while ensuring reliability and safety during repair work.

The technical result is achieved due to the fact that the pipeline sealant is a welded steel structure with galvanic coating and includes a flat jumper having a lower part made in the form of a semicircle and repeating the shape of the pipe, and welded to its end symmetrically in a semicircle, respectively, curved rectangular base plate with ends bent inward. At the same time, at least two rods are welded to the outer surface of the base plate, between which rubber cords are placed, fastened to the ends of the base plate using pressure plates and nuts. In addition, a thrust bearing for the hydraulic cylinder is welded from the inside of the base plate, at the end of which there is a rod with a stop. The thrust bearing also has a recess for installing the pump in the hydraulic cylinder, a hole is made on the jumper into which a fitting is inserted to secure the drainage hose to it.

Additional features of the proposed sealant:

- handles are fixed on the jumper, which can be from 1 to 2 pieces;

- the diameter of the jumper is equal to the inner diameter of the steel pipes, the outer diameter of which is from 219 mm to 1020 mm;

- The thrust bearing is mounted on supports;

- the hydraulic cylinder rod has an extension.

The essence of the proposed utility model is illustrated by the following graphic material: FIG. 1, which shows a front view of the sealant; FIG. 2, which shows a cross section along the axis of symmetry; FIG. 3, which shows a General view of the sealant, where:

1 - jumper;

2 - a hydraulic cylinder;

3 - emphasis;

4 - a nut;

5 - pressure plate;

6 - rubber cord;

7 - thrust bearing;

8 - recess for installing the pump in the hydraulic cylinder;

9 - a support plate;

10 - hole for the fitting;

11 - pen;

12-bar.

The pipeline sealant is a welded steel structure with galvanic coating, includes a flat jumper 1 (jumper height from 1/4 to 1/2 of the diameter of the pipe to be blocked), having a lower part made in the form of a semicircle and repeating the shape of the pipe, and welded to its end symmetrically in a semicircle, respectively, a curved rectangular base plate 9 with the ends bent inward.

At least two rods 12 are welded to the outer surface of the support plate 9 from the side adjacent to the pipe, between which rubber cords 6 (square, rectangular or round section) are placed to ensure the tightness of the overlap, fixed to the ends of the support plate 9 with pressure plates 5 and wing nuts 4. The size of the cord 6 is from 10 to 20 mm, while it is heat-resistant, can withstand up to 100 ° C while blocking the pipeline with hot water.

A thrust bearing 7 for hydraulic cylinder 2 is welded from the inside of jumper 1 (a standard hydraulic cylinder with a sleeve of 0.5 ± 0.05 m with a quick connection or a hydraulic cylinder with a built-in pump), at the end of which there is a rod with a stop 3. The thrust bearing 7 has a recess 8 for installation the pump into the hydraulic cylinder 2. On the jumper 1, a hole 10 is made in which a fitting is inserted to secure the drainage hose to it.

Hinged handles 11 are fixed on the jumper 1 for transportation and installation, which can be from 1 to 2 pieces. The diameter of the jumper 1 can be for steel pipes with an outer diameter of 219 mm and up to 1020 mm.

For large diameter pipes, the thrust bearing 7 can be mounted on supports, and the rod of the hydraulic cylinder 2 can have an extension.

The principle of operation of the sealant:

1. turn off the water and pump out of the pipe;

2. cut the upper half of the pipe over the defect;

3. install a sealant in that part of the pipe that is located above (the pipes are all laid down on a slope). When installing the sealant, water accumulated behind the jumper by gravity is poured over the nozzle with a rubber pipe 2 ± 0.1 m long. By gravity drainage pipe, water flows by gravity into the pipeline cavity behind the part of the pipeline on which work is performed;

4. weld the defect and weld into place the removed part of the pipe.

Thus, the proposed pipeline sealant has improved technical characteristics compared to known structures, and, namely, has a simplified design with high reliability.

Claims (7)

1. The pipeline sealant, characterized in that it is a welded steel structure with galvanic coating and includes a flat jumper having a lower part made in the form of a semicircle and repeating the shape of the pipe, and a rectangular curved base plate with bent welded to its end, respectively, in a semicircle inward ends, at least two rods are welded to the outer surface of the base plate, between which rubber cords are placed, fastened to the ends of the base plate using pressure plates and nuts, a thrust bearing for the hydraulic cylinder is welded from the inside of the jumper, at the end of which there is a rod with a stop, the thrust bearing has a recess for installing the pump in the hydraulic cylinder, and a hole is made on the jumper into which the fitting is inserted to secure the drainage hose to it. 2. The sealant according to claim 1, characterized in that 3 rods are welded to the support plate. 3. The sealant according to claim 1, characterized in that the handles are fixed on the jumper. 4. The sealant according to claim 3, characterized in that the handles from 1 to 2. 5. The sealant according to claim 1, characterized in that the diameter of the jumper is equal to the inner diameter of the steel pipes, the outer diameter of which is from 219 mm to 1020 mm. 6. The sealant according to claim 1, characterized in that the thrust bearing is mounted on supports. 7. The sealant according to claim 1, characterized in that the rod of the hydraulic cylinder has an extension.

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