RU71347U1 - DEVICE FOR TUBELESS PIPELINE INSTALLATION - Google Patents

Abstract

The utility model relates to the field of construction of underground pipelines, namely, devices for trenchless laying of pipelines, and can be used for trenchless laying of pipelines in permafrost and clay soils.

The utility model is aimed at improving the accuracy of laying the pipeline route, increasing productivity, improving the technology of construction of underground pipelines.

A device for laying pipelines contains a working body (1) mounted on the first section (2), a protective casing consisting of sections, while one end of the sections is made with shells (3), inside which the ends of other sections are mounted with the possibility of movement, a soil pipe (4 ) installed inside the sections, the pump station (5) and the guide frame (6) mounted on the working platform (7), hydraulic rams (8) connecting the first (2) and second (9) section, inside the second section (9) motionless fixed bypass block (10), through the bypass block (10), as well as guide holes (11, 12) of the coupling mechanisms (13) installed in the tray (14), a cable is passed through with the formation of segments of the traction (15) and reverse (16) cable, while the traction (15) and reverse (16) the cable is fixed on the traction (17) and reverse (18) winch, respectively, and on the return cable (16) the latch (19) is fixed.

4 pp; 5 of FIG.

Description

The utility model relates to the field of construction of underground pipelines, namely, devices for trenchless laying of pipelines, and can be used for trenchless laying of pipelines in permafrost and clay soils.

A device for forming horizontal workings is known, including a cylindrical body in which a drive is installed coaxially to the device, the shaft of which is connected to the rock cutting tool, for example a roller bit, using a sliding connection, a screw is installed coaxially to the device, rigidly connected at one end to the rock cutting tool, and the other by means of a bearing with a drive housing installed inside the screw, the rock cutting tool is connected to the housing through a thrust bearing, the drive is installed in pore (AS USSR №1082957, IPC E21D 9/08, BI №12 - 1984).

The disadvantage of this device is the small length of the laid pipeline.

The closest device of the same purpose to the claimed combination of features is a device for laying pipelines, including a working body for excavation, a protective casing consisting of sections, a soil pipe installed inside the sections, a guide frame, a movement mechanism made of perimeter sections mounted on hydraulic jacks , persistent flanges, with eyes for fastening hydraulic jacks and a pump station, while some ends of the sections of the protective casing are made with shells inside of which with The ends of other sections were installed with the help of movement (AS USSR No. 781274, IPC E02F 5/18, BI No. 43 - 1980. Prototype).

The disadvantages of the prototype: low accuracy, manufacturability and productivity of the pipeline.

The task: to increase the accuracy of laying the pipeline route; increase productivity; to improve the technology of building underground pipelines.

The problem is solved as follows. In accordance with the prototype, the device for laying pipelines includes a working body, a protective casing, consisting of sections, moreover, one of the ends of the sections is made with shells, inside

of which the ends of other sections, a soil pipe, a pumping station, a guide frame, hydraulic jacks for moving the first and second sections and stop flanges with eyelets for fastening the hydraulic jacks, rigidly fixed on the inner surface of the sections, are installed with the possibility of movement, the feature is that the first and second sections are equipped locking mechanisms, while the bypass block is fixedly fixed inside the second section, through the bypass block of the second section, and also the guide holes of the coupling mechanisms are installed x in the tray, a cable is missed with the formation of segments of the traction and return cable, while the traction and return cable are mounted on the traction and return winch, respectively, and the latch is fixed on the return cable, the coupling mechanism is made in the form of a cylindrical ring with a hub located in the center of the ring and rigidly fixed radially spaced rods, the hub is made with guide holes, one of which is fixed plate check valve.

Further, the essence of the utility model is illustrated by drawings, which depict:

- figure 1 - a device for laying pipelines;

- figure 2 is a coupling mechanism;

- figure 3 - preparation for sinking mining;

- figure 4 - tunneling and laying a protective casing;

- figure 5 - dragging the working pipeline.

A device for laying pipelines contains a working body 1 installed on the first section 2, a protective casing consisting of sections, while one end of the sections is made with shells 3, inside of which the ends of other sections are movably mounted, a soil pipe 4 installed inside the sections, a pump station 5 and a guide frame 6 mounted on the working platform 7, hydraulic jacks of movement 8 connecting the first 2 and second section 9 (Fig. 1), persistent flanges with eyelets for fastening the hydraulic jacks, rigidly fixed to the inside enney surface sections (not shown). The first 2 and second 9 sections are equipped with locking mechanisms (not shown in the drawing), the bypass block 10 is fixedly fixed inside the second 9 section. Through the bypass block 10 of the second section 9, as well as the guide holes 11, 12 (FIG. 2) of the coupling mechanisms 13, installed in the tray 14, the cable is passed with the formation of segments of the traction 15 and return 16 cable, while the traction 15 and return 16 cable are mounted respectively on the traction 17 and return 18 winch, and on the return cable 16 the latch 19 is fixed. The coupling mechanism is made in the form of a cylindrical rings 20, hubs 21 located in the center rigidly fixed radially extending rods 22. The hub 21 is provided with

guide holes 11, 12, while the guide hole 12 is provided with a plate check valve 23 (figure 2).

The device operates as follows. Before the artificial or natural obstacle 24 (embankment, hill, building, pond, etc.) prepare the working platform 7. In the wall of the obstacle, mechanically or manually prepare the face 25, which in shape and size corresponds to the first two sections, if necessary, the face wall 25 is fixed (FIG. 3). In the lower part of the working platform 7, a guide frame 6 is installed, on which two sections of the protective casing are laid, the first section 2 is equipped with a working body 1, a pump station 5 and rods of displacement jacks 8 are connected to the second section 9, on which the bypass block 10 is fixed, after which the first 2 and second 9 sections are introduced into the face 25. Through the bypass block 10, fixed inside the second section 9, as well as through the guide holes 11, 12 of the coupling mechanisms 13 installed in the tray 14 on the work platform 7, a cable is passed, I have segments of traction 15 and 16 reverse cable. Traction 15 and return 16 cable are fixed respectively on the traction 17 and return 18 winch installed at the end of the working platform 7 (Fig.1, 2). Then, the third section 26 of the protective casing is brought to the second section 9, at the end of which from the bottom side the first coupling mechanism 27 is fixed (Fig. 4). The diameter of the coupling mechanisms is equal to the diameter of the sections of the protective casing, fixing is carried out by welding. The sections of the protective casing consist of two separate segments, which are inserted into the traction 15 and the return 16 cable before installation and welded, while the ends of the sections on the platform side are made with shells 3, inside which the ends of other sections are mounted with the possibility of movement (not shown ) The first section 2, which is equipped with a working body 1, introduced into the face rock by means of pressing, cutting, impacts, etc., is moved along the projected path of the pipeline using hydraulic jacks of movement 8 for the entry interval. The magnitude of the entry is determined by the long stroke of the hydraulic jacks of displacement 8. Then the second section 9 is pulled to the first section 2 with the help of hydraulic jacks of displacement 8, while the hydraulic jacks of displacement 8 are put into reverse mode. At the moment of thrust of the second section 9, the first section 2 is held in place by a locking mechanism (not shown in the drawing). The third section 26 is fixed on the return cable 16 by means of the coupling mechanism 27 and is pulled towards the second section 9 by the traction winch 17. At the same time, the second section 9 is held back by the locking mechanism (not shown). Fixing is possible due to the fact that the latch 19, fixedly mounted on the return cable 16, is held by a plate check valve 23

(figure 2). Then, sequentially, starting from the third section of the protective casing 26, each subsequent section of the protective casing with a chain mechanism is moved. After all sections of the protective casing are sequentially moved to the entry interval, the latch 19 is removed from the return cable 16, fixed to the traction cable 15, moved to the bottom and transferred through the bypass unit 10 to the return cable 16. The destroyed rock is transported through the soil pipe 4 to the working platform 7. Thus, the mining of the mine with the simultaneous laying of the sections of the protective casing is done periodically until the first section 2 enters the technological platform 28 from the opposite side of the obstacle. The return cable 16 is removed from fixation with the return winch 18, rewound to the traction winch 17, removed from the bypass unit 10, the soil pipe 4 is removed, then sections 2 and 9 are removed from the technological platform 28. From the technological platform 28, the working pipeline is fixed on the traction cable 15 29 and the traction winch 17 carry out dragging through sections of the protective casing with simultaneous extraction of the coupling mechanisms (Fig. 5). At the same time, at the connection nodes 30 (Fig. 2), the studs are cut (not shown in the drawing). Then, by known methods, the space between the auxiliary and the working pipeline is filled with a hardening composition, for example, cement-sand mortar or other heavy aggregate, freely penetrating into the annulus [Borodavkin PP, Berezin V.L. The construction of trunk pipelines: Textbook for universities. - 2nd ed., Revised. and add. - M .: Nedra, 1987. - 471 p.].

Operations for driving a mine, drawing sections of a protective casing and building them up on a work site are carried out simultaneously. The accuracy of the gasket makes it possible to advance the sections of the protective casing independently of each other, while the movement force is transmitted through the return cable when it is chordally located inside the sections of the protective casing.

The technical result of the utility model: improving the accuracy of the mining track and pipeline; increase in productivity; improvement of the technology for the construction of underground pipelines.

Claims (1)

A device for laying pipelines, including a working body, a protective casing, consisting of sections, and one end of the sections is made with shells, inside of which the ends of other sections, a soil pipe, a pumping station, a guide frame, hydraulic jacks for moving the first and second sections and thrust are installed flanges with eyes for fastening hydraulic jacks, rigidly fixed to the inner surface of the sections, characterized in that the first and second sections are equipped with locking mechanisms, while inside the of the second section, the bypass block is fixedly fixed, through the bypass block of the second section, as well as the guide holes of the coupling mechanisms installed in the tray, the cable is passed with the formation of segments of the traction and return cable, while the traction and return cable are fixed respectively to the traction and return winch, and the clamp is fixed to the return cable, the coupling mechanism is made in the form of a cylindrical ring with a hub located in the center of the ring and rigidly fixed with radially arranged rods, the hub is made with a guide and holes, on one of which a plate check valve is fixed.