Method of laying cables and polyethylene pipelines under water below the bottom of the reservoir and a device for its implementation

 

(57) Abstract:

The invention relates to electrical engineering and can be used for laying of cables and plastic pipes under the water below the bottom of the reservoir. The technical result from the use of the invention is that the proposed method is aimed at improving the quality of the laying of submarine communications, reduction of the time of their construction and the reduction of damage during construction environment. The device allows this result to implement. The invention consists in that on the bottom of the reservoir at a depth of up to 50 m developing trench width 140 - 300 mm and depth up to 3500 mm, on the bottom of the trench lay cables and plastic pipes and hydraulic nozzles of the trench close; trenching, cable laying and polyethylene pipeline and samyu trenches are performed simultaneously. The device for carrying out the method comprises a self-propelled underwater platform that hosts the active working body in the form of traction chains with scrapers, aft and forward pumping station in the form of bow and stern motors and pumps, respectively, submersible ale station connected via the aft macroperiod with hydraulic cylinder, pivotally connected to the active working body and pivotally mounted on self-propelled underwater platform, which is associated with the operator's console and a diesel power plant mounted on a floating pontoon. 2 S. and 1 C.p. f-crystals, 3 ill.

The invention relates to methods and devices for installation, wiring, operation, repair or removal of cables and plastic pipes in or under water and can be used in the field of communications (telecommunications and electricity.

The invention is intended for development of underwater and coastal trenches, laying of cables in them and polyethylene pipelines and subsequent samya trenches.

The increase in the volume and types of information transmitted, and the number of consumers of electricity leads to the development of communication networks: their growth, improving the quality of transmitted signals, increase reliability, reduce cost of production and laying.

For fast, quality and cost-effective conduct of the work of laying cables and plastic pipes, which are elements of the systems of communication channels and power supply lines, razrabatyvayut in conditions of complicated geomorphology: in the presence of a dense river network, large areas occupied by lakes and reservoirs, has its own characteristics. Accordingly, the methods and devices cables and plastic pipes in or under water differ from those used on land.

Advantages and disadvantages of known methods and devices cables and plastic pipes in or under water determine the level of technology.

It is known device System of underwater electrical connections" (EP 0162543 A2, FRAMO DELV LTD, 27.11.1985, H 02 G 9/00), and also a way of "Laying of power cable with boats" (US 3813477 A, CONSOLIDATED EDISON CO OF NYI, 28.05.1974, H 02 G 9/04). The disadvantages of both inventions is that the cables are laid from the Board and they lie on the bottom without penetration into the ground, exposing them to possible effects of some external factors.

There is a method of laying an underwater cable (RU 2065651 C1, 20.08.1996, H 02 G 1/10), carried out on Board a submarine, and a device for laying submarine cable communication materials (EN 95108160/11 A1, MILITARY unit 60130, 20.02.1997, H 02 G 1/10), representing submerged under water using a tank vessel, which is produced by laying the cable on the bottom. The disadvantages of the inventions are the same as the description of the S="ptx2">

It is known device Bulldozer for underwater works" (US 3757438 A MARK YOSHIO WATASE, Sept.11, 1973, E 02 F 5/00). The disadvantages of this device is that it is carried out only dredging; cable laying is another step in the process.

There is also known a method of trenching for pipeline or cable and device for its implementation (GB 1492151 A, GIOVANNI ROSA and others , 13 Mar 1978, E 02 F 5/00). The disadvantages of this method is that the pipe or cable to be located near the machine and the machine digs the earth. And only produce a pipe or cable. That is, the device and method are not stand-alone tools.

The applicant is known at least a dozen methods and devices of digging trenches and laying cables, but they can not be attributed to the analogues, since they are intended for work not under water, and on the earth's surface, i.e. they are not means the same purpose as the claimed invention.

The closest to the invention by the combination of essential features is the way of digging trenches flooded pipe and a device for implementing this method (FR 2167550 A, SAIPEM S. P. A., 22.12.1972, E 02 F 5/00). Method and device C is pressure sucks the extracted soil. The disadvantages are the closest analogue is that it is not a standalone device and a method performed by a device, it is not possible to bury cables and plastic pipes to a depth proposed in the present invention.

The invention consists in the following.

Underwater self-propelled cable laying tractor, designed for the development of underwater and coastal trenches and laying of cables and plastic pipes with a diameter up to 80 mm and wall thickness up to 6 ... 8 mm and their depth in the non-blurry soils up to 2500 mm and in erodible - up to 3500 mm with subsequent samawa underwater trench hydraulic nozzles, moving under water on the bottom of the pond, paving below the bottom cables and plastic pipes. The management of the strip is carried out by operators with floating pontoon.

Described the essential features of the claimed invention distinguish it from the closest analogue, as used in the invention means providing a new technical result. The technical result is that increasing the quality of laying underwater communications, reduced time their stroitelstva.

Description of the invention contains three figures of the drawings. In Fig.1 shows a General view of the device of Fig.2 presents a schematic diagram of a system implementing the moving self-propelled underwater of cable laying tractor, Fig.3 - control system active working body.

The device comprises a self-propelled underwater platform 1, is made on the basis of tracked transport truck. On the self-propelled underwater platform 1 set bow hydraulic pump station 2, consisting of nasal motor 3 and nasal pump 4, aft hydraulic pump station 5, consisting of a feed motor 6 and the feed pump 7, the drum 8 is wound on the cable and plastic piping and removable unloading pontoons 9. Rear self-propelled underwater platform 1 posted by: active working body 10, a hydraulic pressure line 11, submersible electric pump 12 and cable pipe 13, which provides move it underground cable and polyethylene pipe. On the self-propelled underwater platform 1 have the option to install either a single cable pipe 13 for cables and plastic pipes with a diameter of 80 mm, or the EN 10 is a conveyor chain 14 (winter or mountain) with scrapers 15. Cable pipe 13 is provided slavnymi hydraulic nozzles 16. Nasal hydraulic pump station 2 is connected through a nasal oil line 17 and a motor 18 connected to the onboard transmission 19 and the sprocket 20. Feed oil line 22 is connected to the hydraulic cylinder 21, which is hinged to the active working body 10, and pivotally connected with self-propelled underwater platform 1. Feed macroperiod 22 is connected via a hydraulic cylinder 21 aft hydraulic pump station 5, which is installed on self-propelled underwater platform 1. Self-propelled underwater platform 1 is connected via a power cable 23 are installed on a floating pontoon 24 diesel power plant 25 and the operator console 26.

The device is implemented in a single instance of industrial design.

It has the following weight and dimensions.

The weight of the device is the curb 8 tons.

Dimensions: height from bottom crawler truck to the top of the removable unloading pontoons 9 - 3100 mm; width between tracks - 3200 mm; the width of the curb 3350 mm; width of crawler truck - 550 mm; length self-propelled underwater platform 1 - 6150 mm, and the length of the tracks 5800 is an 10 cable pipeline 12 - 9500 mm; active work Oran 10 and cable pipe 12 may be lowered below the surface to 2500 ... 3500 mm

The device operates as follows.

The movement of self-propelled underwater platform 1 on the bottom of the reservoir is carried out using a nasal hydraulic pump station 2, the feed oil through the oil line 17 to the hydraulic motor 18. The hydraulic motor 18 drives the side of the transmission 19 and the sprocket 20.

Raising and lowering of the active working body 10 and the cable pipe 13 provides the hydraulic cylinder 21, which is aft hydraulic pump station 5 by means of the pressure in the hydraulic cylinder 21 oil. The operation of the hydraulic cylinder 21 allows you to change the depth of the cable and the plastic pipe during installation. The rotation of the active working body 10 is aft hydraulic pump station 5. Samyu underwater trench slavnymi hydraulic nozzles 15 is a submersible electric pump 12 through the discharge of water through the hydraulic pressure line 11. The water in the hydraulic pressure line is served from a submersible electric pump 12 with a capacity of at least 150 m3/h and is the use of mining conveyor chain 14 - up to 150 mm

Replacement or repair of active working body 10 is produced under water without lifting underwater self-propelled of cable laying tractor to the surface.

Underwater self-propelled cable laying tractor produce the laying of the cable and the polyethylene pipe from drum 8 mounted on self-propelled underwater platform 1, and from the bottom, and the cable and plastic pipe roll out and laid on the ground.

The trench excavation, laying of cable and polyethylene pipeline, samyu trench are performed simultaneously.

The supply and management of underwater self-propelled cable laying tractor carried out on a power cable 23 by means installed on a floating pontoon 24 diesel power station 25 and the operator's control station 26.

In case of emergency situations when working in open spaces (with the powerful sea, strong wind, etc), in order to ensure the safety cable and polyethylene tubing, power cable 23 to quickly disable and disconnect.

Working depth, i.e. the depth at which produce the trench excavation, laying of cables and plastic piping, and samyu trench, pometto trench underwater laying of cables and plastic pipes (rigging or using plantegenest), underwater self-propelled cable laying tractor can dramatically reduce the time of construction of the underwater navigation and due to the significant decrease in the volumes of excavation virtually eliminate the possibility of damage to the environment.

1. Method of laying cables and polyethylene pipelines under water below the bottom of the reservoir, including the development of underwater and coastal trenches, laying of cables and plastic pipes, characterized in that the development of the trenches 140 - 300 mm lead down to a depth up to 3500 mm, with the trench excavation, laying of cables and plastic piping, and samyu of the trench are performed simultaneously at a depth of up to 50 m from the surface of the water.

2. Device for laying of cables and plastic pipes under the water below the bottom of the reservoir containing the active working body and hydraulic pressure pipeline with slavnymi hydraulic nozzles, characterized in that it is provided with a self-propelled underwater platform made on the basis of tracked transport truck, which is equipped with active working body, the hydraulic pressure pipeline with slavnymi hydraulic nozzles, as well as nasal osovaya the oil line to the motor, connected to the side gear and the sprocket, feed hydraulic pump station, consisting of a feed motor and feed pump connected through a feed oil line to the hydraulic cylinder, which is pivotally connected to the active working body and pivotally mounted on self-propelled underwater platform, the drum is wound on the cable and plastic piping, removable unloading pontoons, submersible electric pump, cable conduit, and self-propelled underwater platform is connected via a power cable installed on a floating pontoon diesel power plant and the operator panel, with active working body, driven in rotation aft hydraulic pump station is a traction chain with scrapers.

3. The device according to p. 2, characterized in that it contains two cable pipeline.

 

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