CN110017412A - A kind of hanging backfilling apparatus of four-degree-of-freedom submarine pipeline and cable - Google Patents

Abstract

The invention relates to a four-degree-of-freedom submarine cable suspension backfilling device, which is applied to the suspension management of the submarine cable. Including power and control system, base, turntable, traverse track, roller conveyor belt and hydraulic telescopic rod in place, hinge mechanism, support arm, hydraulic telescopic rod for operation, telescopic throwing arm, underwater monitoring device. Through the connection between the track and the sand-loading mother ship, the mechanization of sand bag filling and other processes can be realized on the mother ship, and the full coverage of the suspended treatment area can be achieved by moving the position along the ship longitudinally and horizontally by swinging the throwing arm. The bag delivery arm controls the underwater landing point of the sand bag, realizes accurate and effective construction, and solves the technical problem of the construction of the suspended pipeline by the sand bag method at the current stage.

Description

A four-degree-of-freedom submarine umbilical suspension backfill device

technical field

The invention relates to a four-degree-of-freedom submarine cable suspension backfilling device in the field of marine engineering devices, which is applied to the suspension management of submarine cables.

Background technique

The shallow sea soft-foundation area is located in the junction of the beach and the sea, and the marine dynamics, shallow engineering geology, and submarine dynamic geomorphology conditions of the site are very complex, resulting in a large number of submarine pipelines and submarine wires near the bottom of the floating phenomenon. Under the erosion of waves and currents, the suspended umbilicals are prone to cause vortex-induced vibration, generate dynamic stress, cause fatigue damage to the umbilicals, aggravate the possibility of damage to the umbilicals, and pose great hidden dangers to the safety of submarine pipelines and submarine cables. Once the pipeline leaks or the cable breaks, it will cause significant economic and production capacity losses, and urgently needs to be treated.

At this stage, in engineering practice, methods such as sand bag method, interlocking row, bionic aquatic plants, geotextile, and steel structure support method are often used to manage suspended duct cables. Among them, the sand bag method commonly used in engineering has the advantages of simple operation, economical efficiency and so on. Due to the large number of exposed sections of the submarine pipeline, the corresponding sand blasting workload is huge. However, the construction method of the sand bag method currently used is very backward. The general method is to manually pack the sand into bags on land, and then load it on the construction site by crane. On the ship, when the construction ship reaches the sea surface above the suspended pipeline, the construction personnel will push the sand bag off the ship and throw it into the sea. This method not only needs to invest a lot of construction costs, but also has a slow speed, which can no longer meet the construction period and quality requirements of the hidden danger control project. At the same time, there are problems such as uneven sand blasting and non-quantitative sand blasting, which cause the risk of local bending of the pipeline, which has always been an exposed and urgent problem in the sand blasting process.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a four-degree-of-freedom submarine pipe with controllable sand-blasting position for automatically finding lines and carrying out sand blasting according to the orientation of the pipeline, automatically bagging and efficient sand blasting according to the sand blasting requirements, and aiming at the problems existing in the prior art. Cable suspension backfill device.

A four-degree-of-freedom submarine pipe cable suspension backfilling device, comprising a power and control system, a base, a turntable, a traverse track, a roller conveyor belt, a hydraulic telescopic rod in place, a hinge mechanism, a supporting hinge arm, an operating hydraulic telescopic rod, a telescopic rod The traverse track is two smoothly arranged sliding rails; the base is arranged on the traverse track, and forms a sliding drive limit cooperation with the traverse track; the turntable is arranged on the base and cooperates with the traverse track The base constitutes a rotational drive fit; the lower end of the support hinge arm is connected to the turntable through a hinge mechanism, the upper end is connected to the telescopic throwing arm through a hinge mechanism, and the middle is connected to one end of the in-place hydraulic telescopic rod through a hinge mechanism; the in-place hydraulic The other end of the telescopic rod is connected with the turntable through a hinge mechanism; the two ends of the working hydraulic telescopic rod are respectively connected with the turntable and the telescopic throwing arm through the hinge mechanism; the output end of the roller conveyor belt overlaps the input end of the telescopic throwing arm The power and control system adjusts the reciprocating movement of the base along the traverse track, adjusts the rotation of the turntable and the base, and adjusts the telescoping of the hydraulic telescopic rod in place and the working hydraulic telescopic rod.

The above scheme further:

It also includes an underwater monitoring device mounted on the lower end of the telescopic throwing arm.

The underwater monitoring device is equipped with a depth sensor, a pressure sensor and an underwater video monitoring system.

The base and the traverse track, the base and the turntable are respectively driven and matched by the friction drive of the motor rollers or the gears of the gear motor.

The telescopic throwing arm is a multi-segment embedded telescopic arm in sequence.

The two ends of the telescopic throwing arm are connected by a winch, and the winch is connected with the power and control system.

The telescopic throwing arm has a middle through hole structure.

The four-degree-of-freedom submarine cable suspension backfilling device of the present invention is connected with a sand-loading mother ship through rails, and can realize the mechanization of sand bag filling and other processes on the mother ship. Realize the full coverage of the suspended treatment area; control the underwater landing point of the sand bag through the retractable sand bag delivery arm to achieve accurate and effective construction; solve the technical problems of the current sand bag method to control the suspended pipeline construction, compared with the traditional manual operation construction method , greatly improving the construction efficiency.

Description of drawings

Figure 1 is a schematic diagram of a four-degree-of-freedom submarine umbilical suspension backfill device; in the figure:

1. Base 2. Turntable 3. Hydraulic telescopic rod in place

4. Traverse track 5. Hinge mechanism 6. Support hinge arm

7. Operation hydraulic telescopic rod 8. Telescopic delivery arm 9. Underwater monitoring device

10. Roller conveyor belt 11. Feeding area 12. Power and control system

Figure 2 is a front view of a four-degree-of-freedom submarine umbilical suspension backfill device;

Figure 3 is a side view of a four-degree-of-freedom submarine umbilical suspension backfill device.

Detailed ways

Now in conjunction with the accompanying drawings, the present invention is further described:

Referring to FIG. 1 , a four-degree-of-freedom submarine umbilical suspension backfilling device includes a power and control system 12 , a base 1 , a turntable 2 , a traverse track 4 , a roller conveyor belt 10 , an in-position hydraulic telescopic rod 3 , and a hinge mechanism 5 , supporting hinge arm 6, working hydraulic telescopic rod 7, telescopic throwing arm 8; the traverse track 4 is two smooth sliding rails; Limit matching; the turntable 2 is arranged on the base 1, and forms a rotational cooperation with the base 1; the lower end of the supporting hinge arm 6 is connected with the turntable 2 through the hinge mechanism 5, and the upper end is connected with the hinge mechanism 5 by a telescopic throwing arm 8 is connected, and the middle part is connected with the in-position hydraulic telescopic rod 3 through the hinge mechanism 5; the other end of the in-position hydraulic telescopic rod 3 is connected with the turntable 2; the two ends of the working hydraulic extension rod 7 are respectively connected with the turntable 2 through the hinge mechanism 5 It is connected with the telescopic throwing arm 8; the output end of the roller conveyor belt 10 is overlapped with the input end of the telescopic throwing arm 8; The rotation of the turntable 2 and the base 1 , the adjustment of the in-position hydraulic telescopic rod 3 and the telescopic extension of the working hydraulic telescopic rod 7 .

Further: an underwater monitoring device 9 installed on the lower end of the telescopic release arm 8 is also included. The underwater monitoring device 9 is equipped with a depth sensor, a pressure sensor and an underwater video monitoring system.

Further: the base 1 and the traverse track 4, the base 1 and the turntable 2 are respectively driven by the friction drive of the motor rollers or the gear teeth of the gear motor.

Further: the telescopic throwing arm 8 is a multi-segment embedded telescopic arm in sequence. The two ends of the telescopic throwing arm 8 are connected by a winch, and the winch is connected with the power and control system 12 . The telescopic throwing arm 8 has a middle through hole structure, and the sand bag can be accurately dropped through the middle through hole.

The specific operation process is as follows: when the engineering ship arrives at the designated operation site, the in-position hydraulic telescopic rod 3 pushes up the telescopic delivery arm 8, inserts it into the water surface at a certain angle, and the rear hydraulic telescopic rod 3 stops working, and then the telescopic delivery arm 8 is pushed up. Extend to near the top of the suspended umbilical and stop. After real-time observation of the position by the underwater monitoring device 9 installed on the telescopic throwing arm 8, the power and control system 12 starts the roller conveyor 10 to transport the sand bags to the telescopic throwing. The input end of the arm 8 starts the throwing operation. During the operation, the situation of sand dumping and landfilling can be observed in real time through the underwater monitoring device 9, and the telescopic throwing arm 8 can be controlled by the power and control system 12 to perform the dumping and filling operation along the two degrees of freedom on the traverse track 4, or The operation hydraulic telescopic rod 7 is controlled by the power and control system 12 so that the telescopic throwing arm 8 swings left and right in two lateral degrees of freedom to perform the dumping operation. After the operation is completed, the telescopic throwing arm 8 is recovered first, and then the hydraulic telescopic rod 3 is driven to recover to the initial position to recover the telescopic throwing arm 8 to the deck of the ship.

Claims (7)

1. A four-degree-of-freedom submarine umbilical cable suspension backfilling device is characterized in that: comprising a power and control system, a base, a turntable, a traverse track, a roller conveyor belt and a hydraulic telescopic rod in place, a hinge mechanism, a support hinge arm, Operation hydraulic telescopic rod and telescopic throwing arm; the traverse track is two smoothly arranged sliding rails; the base is arranged on the traverse track, and forms a sliding drive limit cooperation with the traverse track; the turntable is arranged on the The lower end of the support hinge arm is connected with the turntable through the hinge mechanism, the upper end is connected with the telescopic throwing arm through the hinge mechanism, and the middle part is connected with one end of the in-place hydraulic telescopic rod through the hinge mechanism ; The other end of the in-position hydraulic telescopic rod is connected to the turntable through a hinge mechanism; the two ends of the working hydraulic telescopic rod are respectively connected to the turntable and the telescopic throwing arm through a hinge mechanism; the output end of the roller conveyor belt is connected to the telescopic type. The input end of the throwing arm is overlapped; the power and control system adjusts the reciprocating movement of the base along the traverse track, adjusts the rotation of the turntable and the base, and adjusts the telescoping of the hydraulic telescopic rod in place and the working hydraulic telescopic rod. 2 . The four-degree-of-freedom submarine umbilical suspension backfilling device according to claim 1 , further comprising an underwater monitoring device installed on the lower end of the telescopic throwing arm. 3 . 3. The four-degree-of-freedom submarine umbilical suspension backfilling device according to claim, wherein the underwater monitoring device is provided with a depth sensor, a pressure sensor, and an underwater video monitoring system. 4. The four-degree-of-freedom submarine umbilical suspension backfilling device according to claim 1, 2 or 3, wherein the base and the traverse track, the base and the turntable are respectively driven by motor roller friction or gears. Motor gears are geared to drive fit. 5. The four-degree-of-freedom submarine umbilical cable suspension backfilling device according to claim 1, 2 or 3, wherein the telescopic delivery arm is a multi-section embedded telescopic arm in sequence. 6 . The four-degree-of-freedom submarine umbilical suspension backfilling device according to claim 5 , wherein the two ends of the telescopic delivery arm are connected by a winch, and the winch is connected with a power and control system. 7 . 7 . The four-degree-of-freedom submarine umbilical cable suspension backfill device according to claim 6 , wherein the telescopic delivery arm has a middle through-hole structure. 8 .