JPH05319776A - Pipe conveying device - Google Patents

Abstract

PURPOSE:To improve safety and workability of a work and to save power and man hours by conveying a pipe in a state that the pipe is brought into a vertical state. CONSTITUTION:Pipes 3 are stored in the hatch 2 of a floating body 1 floating on an ocean sea in a state that the pipes are brought into a vertical state and a rail (a monorail) 5 extending from the storing position of the pipe in the direction of a tower being suspension equipment is installed on the inner ceiling part of the hatch 3. A hoist 6 designed to be runnable through rotation of a roller 7 is runnably placed and supported to the rail 5. An insertion rod 8 for lifting the pipe is elevatably mounted in the lower end of the hoist 6, and a jig 9 for lifting the pipe is supported to the insertion rod 8 for lifting the pipe. By utilizing the flange part 9a of the jig 9 for lifting the pipe, the flange part is locked to the upper end of the pipe 3 by means of a bolt 10, and the pipe is conveyed on a conveyance route determined by the rail 5 in a state that the pipe 3 is brought into a vertical state (a perpendicular state) by means of the hoist 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe transporting device for transporting a pipe suspended from a floating body on the sea to the seabed on the floating body.

[0002]

2. Description of the Related Art In a seabed excavation work, a pipe of a required length is suspended vertically from an offshore floating body, and then successively added to the seabed to hang it until it reaches the seabed. Although the pipes are arranged, when the pipes are sequentially hung from above the floating body, it is necessary to convey the pipes from the storage position to the pipe hanging position.

Conventionally, as shown in FIG. 3, the method of carrying such a pipe from the storage position to the hanging position is as follows. At both ends or both ends of the pipe a stored horizontally in the hold of the floating body. The rope b is hooked at a close place, the rope b is hung by the hook c of the crane and the pipe a is laid down while maintaining the posture being conveyed by the stay d, and the posture is changed vertically at the hanging position. The actual situation is to fix it and hang it.

[0004]

However, in the above-mentioned conventional pipe conveying system, the slinging work of the worker is required when the crane is hoisted by the hook c of the crane, which is not safe in the work where the footing is poor. It is difficult to secure it, the rope b that suspends the pipe being transported sways due to the sway of the floating body due to waves, and at the same time it is dangerous and it is difficult to cut the ground and make landing work. There are problems such as requiring additional work and personnel, such as taking stays to keep them.

In view of the above, the present invention provides a pipe transporting device for safely and reliably transporting a pipe along a transport route to improve work safety, improve workability, save labor, and save labor. Is to provide.

[0006]

In order to solve the above-mentioned problems, the present invention lays a rail extending from the inside of the warehouse toward the pipe hanging equipment on the ceiling of the inside of the warehouse of the floating body, and runs along the rail. A pipe lifting jig is attached to the hoist so that it can be raised and lowered, and a pipe attached to the pipe lifting jig can be stored vertically in a warehouse.
Further, a pipe guide device for guiding the upper and lower ends of the pipe is provided in parallel with the rail.

[0007]

The pipe lifting jig is attached to the upper end of the vertically stored pipe, and then the pipe lifting jig is lifted to lift the pipe, and then the hoist is run along the rail. As a result, the pipe is conveyed vertically. During this transportation, the pipes are guided by the upper and lower pipe guide devices, so that the pipe can be safely transported even if the floating body sways.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention, in which a pipe 3 can be stored vertically in a warehouse 2 of a floating body 1 floating above the sea, and at the ceiling of the warehouse 3 A hoist having a rail (monorail) 5 extending from the storage position of the pipe toward the turret 4 serving as a pipe suspension facility, and being capable of self-propelled by rotating a roller 7 on the rail 5 by a drive device (not shown). 6 is placed and supported so that it can run freely.

A pipe hoisting insertion rod 8 is attached to the lower end of the hoist 6 so as to be able to move up and down, for example, by screwing, and the pipe hoisting insertion rod 8 is attached to the pipe hoisting jig 8. 9 is supported, and the flange portion 9a of the pipe lifting jig 9 is used to stop the upper end of the pipe 3 with a bolt 10 or the like, and the pipe 3 is made vertical by the hoist 6 (vertical state) on the rail. The transportation route determined in 5 is set.

A pipe guide beam 11 as an upper pipe guide device guided by the upper end of the pipe 3 is provided on the above-mentioned conveying route in order to prevent shaking of the pipe 3 which is vertically conveyed during conveyance. Pipe guide beam 1 as a lower pipe guide device for guiding the lower end of a pipe
2 are installed parallel to the rails 5 so that the pipe 3 can be safely and efficiently transported along the transportation route.

The turret 4 as the above-mentioned pipe suspension equipment is erected at the position of the opening 1a provided in the floating body 1 for suspending the pipe 3 in the sea, and the sheave 13 is attached to the top of the turret 4. The wire rope 15 wound around the winch 14 is wound around the sheave 13 and the hook 16, and the hook 16 is moved up and down by the winding and unwinding operation of the wire rope 15.

At a position between the turret 4 side end of the rail 5 and the turret 4, a tilting type for raising the pipe 3 conveyed by the hoist 6 along the rail 5 to the upper position of the turret 4. An elevator device 17 is installed so that a vertically conveyed pipe can be tilted obliquely to be lifted obliquely upward, and the lifted pipe 3 is hung on a hook 16 via a lifting jig 18. Lower and support them.

Reference numeral 19 is a pipe which is replenished.

In order to hang down the pipe 3 which is vertically stored in the hold 2 of the floating body 1 to the seabed, when the pipe 3 is conveyed to the elevating elevator device 17 shown in FIG. After the pipe lifting jig 9 provided on the hoist 6 is attached to the upper end of the pipe 3, the pipe lifting jig 9 is lifted to slightly lift the pipe 3. Next, the hoist 6 is run on the rail 5.
As a result, the pipe 3 is conveyed in an upright state.

While the pipe 3 is being conveyed, the upper end and the lower end of the pipe 3 are guided by the pipe guide devices 11 and 12, respectively, so that the pipe 3 is conveyed without shaking, safely and efficiently. Be transported.

The pipe 3 conveyed to the target position as described above is separated from the hoist 6, received by the tilting elevator device 17 and conveyed obliquely upward, and is suspended from the top of the turret 4. Lifting jig 1 on hook 16
It is supported via 8.

The hoist type elevator device 17 includes a frame 17a for receiving the pipe 3, pinions 17b and 17c attached to the frame 17a, and an oblique conveying path 1
The rack 17e installed on 7d and the arc-shaped rack 17f for guiding the frame 17a for tilting the pipe 3 from the vertical state to the diagonal state, the pinion 17b meshes with the rack 17e and the pinion 17c. Engages with the rack 17f, and the rotation of the pinion 17c causes the frame 1 to rotate.
7a is tilted from the vertical state to the diagonal state together with the pipe 3, and the frame 17a is rotated by the rotation of the pinion 17b.
Along with it, the rack 17e can be raised.

The pipe 3 hung by the hook 16 is hung so that its lower end abuts on the upper end of the pipe 19 held by the turret 4, and the lower end of the pipe 3 and the upper end of the pipe 19 joined to it. Are connected and added.

When the replenishment work is finished, the holding of the pipe 19 is released, and the pipe 3 is lowered to a position where the upper end of the pipe 3 is held by the turret 4. Thereafter, the pipes are replenished one by one to lower the pipe to the seabed. ..

[0021]

As described above, according to the pipe conveying apparatus of the present invention, the pipe can be stored in the vertical state, and the pipe is conveyed to the unloading position in order to hang it in the sea. In the above, since the pipe stored in the vertical state is suspended by the hoist in the vertical state, the pipe is moved along the rail to be transported, and the pipe guide device is provided along the transportation route.
The following excellent effects can be achieved. (i) Pipes can be safely and reliably transported to the target position along the transportation route determined by rails. (ii) Since the pipes are transported vertically along the rails, the slinging work by humans involved in the conventional crane suspension is unnecessary, and the space required along the transportation route can be minimized. (iii) By controlling the hoist remotely, labor saving and efficiency improvement can be achieved. (iv) Since the pipe guide device is provided, the pipe can be prevented from swaying even when the floating body is swaying, and the pipe can be transported, thus improving workability.

[Brief description of drawings]

FIG. 1 is a front view of a pipe transfer device of the present invention.

FIG. 2 is a side view showing an embodiment in which a pipe conveyed by the pipe conveying device of the present invention is moved to a hanging position on a turret.

FIG. 3 is a schematic view showing a conventional pipe transportation procedure.

[Explanation of symbols]

 1 Floating body 2 Kurauchi 3 Pipe 4 Turret (pipe hanging equipment) 5 Rail 6 Hoist 9 Pipe lifting jig 11 Upper pipe guide beam (pipe guide device) 12 Lower pipe guide beam (pipe guide device)

Claims (1)

[Claims] 1. A rail extending from a pipe storage position toward a pipe suspension facility is laid on a ceiling portion of a floating warehouse.
A pipe guide device for attaching a pipe lifting jig to a hoist traveling along the rail so as to be able to move up and down, and for guiding a pipe conveyed in a vertical state by being attached to the pipe lifting jig, A pipe conveying device characterized by being provided in parallel.