CN112875595A

CN112875595A - Automatic transmission system for marine riser storage yard

Info

Publication number: CN112875595A
Application number: CN202110279066.9A
Authority: CN
Inventors: 张鹏飞; 唐旭东; 荆海东; 王东; 李成君
Original assignee: 708th Research Institute of CSIC
Current assignee: Marine Design & Research Institute of China
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-06-01

Abstract

The invention relates to an automatic transmission system of a marine riser storage yard, which comprises support bracket groups, a support truss structure, a mechanical arm, a catwalk vehicle, an elevator and a motor drive gear transmission mechanism, wherein a plurality of layers of support truss structures are longitudinally arranged along the ship length direction to form the marine riser storage yard, the two marine riser storage yards are arranged on the left side and the right side of a ship, the elevator is arranged at the middle position of the two marine riser storage yards, the mechanical arm is arranged at the top of the elevator, the catwalk vehicle is arranged below the mechanical arm, the support bracket groups of marine risers are distributed on each layer of the support truss structure, and each marine riser is distributed with a plurality of support bracket groups along the length direction, wherein the two support bracket groups are connected with the motor drive gear transmission mechanism, and the motor drive gear transmission mechanism drives the support bracket groups. The system realizes the automatic sliding process of the marine riser by constructing a novel marine riser yard layout mode and driving gear transmission through a motor, so that the marine riser slides to the elevator and is conveyed to the catwalk vehicle.

Description

Automatic transmission system for marine riser storage yard

Technical Field

The invention relates to a drilling ship or a drilling platform with a riser storage yard in offshore drilling equipment, in particular to an automatic transmission riser system.

Background

At present, a marine riser storage yard on a drilling ship or a drilling platform is matched with one or more cranes or gantry cranes specially to complete the taking and placing of a marine riser, as shown in figure 1, the ship is specially provided with 2 cranes for the marine riser and simultaneously hoists to improve the efficiency of lowering the marine riser.

The operation flow of the conventional hoisting marine riser is shown in figure 2. The state when the riser is suspended, see fig. 3.

Usually, the process of hoisting the marine riser is reversible, and after the drilling work is finished, the marine riser is folded to a storage yard and is also finished by matching the catwalk vehicle and the crane.

In summary, the problems of the prior art are as follows:

1. the additional crane is poor in economical efficiency

Generally, in order to ensure the efficiency of lowering the marine riser in drilling operation, the equipped cranes have a wave compensation function, and the price of each crane is in the order of tens of millions.

2. High failure rate of crane

When the crane works on the sea, the crane belongs to vulnerable equipment, and if the crane goes wrong in the operation sea area, the efficiency of the drilling operation is directly influenced. If the sea state changes, a major accident may be caused.

3. Additional auxiliary personnel need to be equipped

Need to be equipped with extra auxiliary personnel, can not only carry out the control work of lifting hook through the camera.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an automatic transmission system of a marine riser yard, which realizes the automatic sliding process of a marine riser by constructing a novel marine riser yard arrangement mode and driving gear transmission through a motor, so that the marine riser slides to a lifter and is conveyed to a catwalk vehicle.

The technical scheme of the invention is as follows: an automatic transmission system of a marine riser storage yard comprises support bracket groups, a support truss structure, a mechanical arm, a catwalk vehicle, a lifting ladder and a motor-driven gear transmission mechanism, wherein a plurality of layers of support truss structures are longitudinally arranged along the ship length direction to form the marine riser storage yard, two marine riser storage yards are arranged on the left side and the right side of a ship, the lifting ladder is arranged at the middle position of the two marine riser storage yards, the mechanical arm is arranged at the top of the lifting ladder, the catwalk vehicle is arranged below the mechanical arm, the support bracket groups of marine risers are distributed on each layer of support truss structure, a plurality of support bracket groups are distributed on each marine riser along the length direction, wherein, two support bracket group link motor drive gear drive mechanism, slide along the support truss structure by motor drive gear drive mechanism drive support bracket group, realize the automatic process of sliding of marine riser, make it slide to lift department to carry to catwalk car department.

Furthermore, the support bracket group consists of a top bracket and a bottom bracket, the bottom of the bottom bracket is provided with a pulley block or a clamping strip which can be driven by the transmission gear to realize sliding through the pulley block.

Further, the width of the top bracket and the width of the bottom bracket are not more than 600mm, and the range of the buoyancy blocks of the marine riser is staggered to prevent the buoyancy blocks from being damaged.

Furthermore, the bottom of the support bracket group with the pulley block is provided with a limit stop block to prevent the pulley block from sliding and derailing.

Further, a bumper strip is arranged above the top bracket.

Further, motor drive gear drive mechanism includes motor, transmission shaft gear, hinge transmission rack, hinge transmission shaft, transmission hinge, the motor passes through hinge transmission shaft connection hinge transmission hinge, and the transmission hinge passes through hinge transmission rack connection transmission shaft, coaxial coupling transmission shaft gear on the transmission shaft, and transmission shaft gear drives card strip on the bottom bracket in the support bracket group produces the displacement for the water-resisting pipe passes through the assembly pulley and slides.

Furthermore, each layer of yard is provided with a motor which is responsible for transmitting power to the transmission hinge.

Further, the bottom of the support truss structure is provided with an anti-collision rail groove.

Further, 7 support bracket sets are arranged along the length direction of each riser, wherein 2 support bracket sets are pulled by the hinge.

Furthermore, in the arrangement of the marine riser yard, 2 manipulators are arranged, are respectively positioned at the head end and the tail end of the marine riser and are positioned above the vertical support of the marine riser yard.

The invention has the beneficial effects that:

1. the transmission efficiency is high: the elevator and the catwalk vehicle can complete respective tasks at the same time, and the flow is coherent;

2. the personnel equipment is few: in the embodiment, only one person is needed for operation, and the motor, the elevator and the manipulator are controlled;

3. the cost is low: the motor and the gear rack transmission system in the embodiment have low manufacturing cost, and are convenient to maintain and replace when the storage yard is in no-load;

4. the system operation redundancy is high: when the operation sea condition exceeds the expectation, the crane often limits the operation, and the invention can avoid the problem and can complete the drilling operation only by the driving of the motor.

Drawings

FIG. 1 is a top plan view of a prior art drill ship;

FIG. 2 is a prior art riser transport flow;

FIG. 3 is a side view of a prior art drill ship;

FIG. 4 is a cross-sectional view of a riser yard of the present invention;

FIG. 5 is a top plan view of each layer of the support truss structure of the present invention;

FIG. 6 is a side view of the drive motor of the present invention;

FIG. 7 is a detailed view of the support bracket with pulley blocks of the present invention;

FIG. 8 is a detailed view of the support bracket of the present invention with a snap strip;

FIG. 9 is a side view of the yard drive pulley of the present invention;

FIG. 10 is a non-hinged support bracket of the present invention;

FIG. 11 is a hinged support bracket of the present invention;

FIG. 12 is a detailed view of the motor drive hinge of the present invention;

FIG. 13 is a view of the riser cradle and drive gear arrangement of the present invention;

figure 14 is a view of the riser cradle and drive gear arrangement of the present invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 4 to 14, the automatic transmission system of the marine riser yard of the present invention realizes the automatic sliding process of the marine riser by constructing a novel marine riser yard layout pattern and driving the gear transmission by the motor, so that the marine riser slides to the elevator and is conveyed to the catwalk vehicle.

The automatic transmission system comprises a support bracket, a support truss structure 3, a manipulator 5, a catwalk vehicle 51, an elevator 52 and a motor-driven gear transmission mechanism. The multi-layer supporting truss structure 3 is longitudinally arranged along the ship length direction to form a marine riser storage yard, the two marine riser storage yards are arranged on the left side and the right side of the ship, the lifting ladder 52 is installed in the middle of the two marine riser storage yards, the manipulator 5 is installed at the top of the lifting ladder 52, and the catwalk vehicle 51 is arranged below the manipulator 5. And a plurality of support brackets of the marine riser 1 are distributed on each layer of the support truss structure 3, the support brackets are connected with a motor-driven gear transmission mechanism, and the support brackets and the marine riser are driven by the motor-driven gear transmission mechanism to slide along the support truss structure 3.

The number of the marine risers shown in fig. 4 of this embodiment can be about 2500 meters deep, the length of each of the marine risers 1 is about 22.8 meters, and the marine risers are arranged longitudinally along the ship length direction, the cross-sectional view of the marine riser yard is shown in fig. 4, the yard is arranged on the left and right sides, the marine risers 1 in this embodiment are divided into 7 layers, each layer of the marine riser 1 is supported by the supporting truss structure 3 (the conventional marine riser yard has no such truss structure, and is arranged in a row), and the supporting truss structure 3 not only plays a supporting role, but also can be used as a sliding guide rail, which is specifically described below.

The riser 52 at the midship position can deliver the marine riser 1 to the top manipulator 5, pick up the marine riser 1 through the manipulator 5, and when the catwalk truck 51 returns to the position below the manipulator 5 from the drill floor, the manipulator 5 places the marine riser 1 on the catwalk truck 51 again to be delivered to the derrick.

The riser 1 is power-transmitted by the motor 4 and is slid into the vessel to the elevator 52. The motor 4 transmits power to the driving hinge 42 through the driving shaft 41 to operate the hinge.

As shown in fig. 6, each yard is equipped with a motor to transmit power to the hinge 42.

The riser 1 is clamped between the truss structures of the riser yard by the support brackets of fig. 7, and the support brackets are arranged along the length direction of the riser and are respectively positioned at the cross beams of the truss structures of the truss top view of fig. 5. The support bracket consists of a top bracket 11 and a bottom bracket 13 of the riser. The widths of the top bracket 11 and the bottom bracket 13 of the marine riser are not more than 600mm, and the range of the buoyancy blocks of the marine riser is staggered to prevent the buoyancy blocks from being damaged. The bottom bracket 13 has a pulley block 15 at the bottom, see fig. 7, which is slidable along the truss structure. Some support brackets have a clamping strip 16 at the bottom, see fig. 8, which can be driven by a transmission gear 21 to realize sliding through a pulley block 15.

In fig. 9 it can be seen that (in this example) 7 sets of support brackets (top and bottom) are arranged lengthwise per riser. Only 2 of which are pulled by the hinge.

The riser support bracket of fig. 9, not pulled by the hinge 42, is shown in fig. 10, with the pulley block 15 at the bottom and the limit stop 33 controlling the pulley to prevent slip derailment. The bottom of the support truss structure is provided with a crash track groove 34, and a crash bar 12 is arranged above the riser top bracket 11. When the risers are stacked, the weight of each layer of riser is transferred to the main hull by gravity, and all the weight is borne by the pulley block 15, the anti-collision rail groove 34 and the anti-collision strip 12.

As shown in fig. 11, the riser support bracket pulled by the hinge 42 in fig. 9 moves the transmission hinge 42 in fig. 6 to rotate the hinge transmission rack 24, so that the transmission shaft 2 rotates to move the transmission shaft gear 21, thereby moving the clamping strip 16 in fig. 7 to generate displacement, so that the riser slides through the pulley block 15.

As shown in fig. 12, the driving hinge 42 drives the rotating shaft clamping strip 24 to rotate.

Fig. 13 shows the motor 4 rotating through the motor shaft 41, thereby moving the

rotating hinge

42, and 43 is the positioning rotating shaft.

As shown in fig. 14, the transmission gears of the same row of risers have different diameters, and the gear diameter near the elevator is reduced (as shown in fig. 14, element 23), where the linear speed is higher at the same hinge speed, so that it can accelerate until the elevator is landed. And then is locked and fixed by the elevator thrust block. Set up its aim at of axis of rotation that the size is different when with layer marine riser uniform motion, first marine riser conveys to the companion ladder after, and the second marine riser is just being located the companion ladder edge this moment, during the companion ladder elevating movement to prevent that the marine riser that is in the edge influences the companion ladder motion, secondly also easily receives the hull motion influence and falls.

The drive shaft follower gear 22 has no power input and is not controlled by the hinge, so that the support carriers 13 above the gears of the same different diameter are affected by the different speeds provided by the different gears to prevent the racks from being bitten.

In this novel yard layout, set up 2 total manipulators, be located riser head and the tail both ends respectively, sit in yard vertical support top. After the elevator reaches fixed height, the manipulator is responsible for blocking both ends around the marine riser to grab and rise to a take the altitude, catwalk car slides back the yard from the rig floor this moment, moves to when being under the marine riser that is lifted up by the manipulator, and the manipulator is transferred the marine riser to catwalk car on, and catwalk car transports this marine riser to rig floor department and treats the connection. When the manipulator clamps the marine riser and lifts, the elevator moves down to a specified position to be transported to the next marine riser. Therefore, the automatic transmission function of the marine riser is realized in a reciprocating mode.

When the marine riser is taken, the marine riser is taken from top to bottom so as to prevent the truss structure from being influenced by gravity and clamping the bracket below. When the riser is retracted, the riser is also stored from bottom to top.

Claims

1. An automatic transmission system for a riser yard, including a support bracket group, a support truss structure, a manipulator, a catwalk, a lift, and a motor-driven gear transmission mechanism. In the water pipe yard, two riser yards are arranged on the left and right sides of the ship, and a lift is installed in the middle of the two riser yards. Each layer of support truss structure is arranged with support bracket groups of water risers, and each water riser is arranged with multiple support bracket groups along the length direction, wherein two support bracket groups are connected to the motor-driven gear transmission mechanism, which is driven by the motor The gear transmission mechanism drives the support bracket group to slide along the support truss structure to realize the automatic sliding process of the riser, making it slide to the elevator and transport it to the catwalk.

2 . The automatic transmission system of the riser yard according to claim 1 , wherein the support bracket group is composed of a top bracket and a bottom bracket, and the bottom bracket is provided with a pulley group or a clip at the bottom. 3 . The strip can be driven by the transmission gear, and the sliding is realized through the pulley block.

3. The riser yard automatic transmission system according to claim 2, wherein the width of the top bracket and the bottom bracket is not more than 600mm, and the range of the riser buoyancy block is staggered to prevent damage to the buoyancy block.

4 . The automatic transmission system of the riser yard according to claim 2 , wherein the bottom of the support bracket group with the pulley group is provided with a limit block to prevent the pulley group from slipping and derailing. 5 .

5 . The automatic transmission system of the riser yard according to claim 2 , wherein the top bracket is provided with an anti-collision strip. 6 .

6. The automatic transmission system for a riser yard according to claim 1, wherein the motor-driven gear transmission mechanism comprises a motor, a transmission shaft, a transmission shaft gear, a hinge transmission rack, a hinge transmission shaft, and a transmission hinge, The motor is connected to the hinge drive hinge through the hinge drive shaft, the drive hinge is connected to the drive shaft through the hinge drive rack, the drive shaft is coaxially connected to the drive shaft gear, and the drive shaft gear drives the bottom bracket in the support bracket group. The clips are displaced so that the riser slides through the pulley block.

7 . The automatic transmission system of the riser yard according to claim 6 , wherein each layer of the yard is equipped with a motor for transmitting power to the drive hinge. 8 .

8 . The automatic transmission system for a riser yard according to claim 1 , wherein the bottom of the supporting truss structure is provided with an anti-collision track groove. 9 .

9 . The automatic transmission system for a riser yard according to claim 1 , wherein 7 support bracket groups are arranged along the length direction of each riser, and 2 groups of support bracket groups are pulled by hinges. 10 .

10. The automatic transmission system of the riser yard according to claim 1, characterized in that: in the arrangement of the riser yard, a total of 2 manipulators are arranged, which are respectively located at the beginning and end of the riser, and are located on the vertical support of the riser yard. above.