CN104649171B - Offshore fluid conveyance conduit interface automatic butt jointing device - Google Patents

Abstract

The invention discloses a kind of offshore fluid conveyance conduit interface automatic butt jointing device, it is related to fluid assembly and disassembly equipment technical field, include two tilting large ports conical guide cylinder directed downwardly, one of guide cylinder is mounted in the delivery pipe of groove ship by the first installing rack, another guide cylinder is mounted in the connecting tube of loading arm by the second installing rack, two guide cylinders are located at phase the same side of delivery pipe and connecting tube and angle of inclination is identical, and the guide cylinder in connecting tube is located at the top of the guide cylinder side in delivery pipe；Winch is provided with the side of loading arm, the haulage cable of winch sequentially passes through the guide cylinder on guide cylinder and delivery pipe in connecting tube and is fixed on the first installing rack.Compared with prior art, by the gradually fit of the guide cylinder on the guide cylinder and delivery pipe in rope traction connecting tube, the present invention realizes that the connection pipe port of loading arm is docked with the conveying pipe port of groove ship, butt junction location accurately, high working efficiency.

Description

Automatic docking device for offshore fluid transportation pipeline interface

technical field

The invention relates to the technical field of fluid loading and unloading equipment, in particular to an automatic docking device for the interface of an offshore fluid delivery pipeline.

Background technique

The long-distance transportation of liquefied natural gas is mainly transported by tanker. When loading or unloading the ship, the delivery pipe of the tanker and the connecting pipe of the loading and unloading arm must be connected. At present, manual docking is used, and the loading and unloading arm is operated to make the connecting pipe port close to the conveying pipe port of the tanker. The connecting pipe port of the loading and unloading arm is manually docked with the conveying pipe port of the tanker. Since the tanker is moored at sea and shakes with the waves , causing great difficulties to the docking operation, the docking operation process is complex, time-consuming, low work efficiency, and labor-intensive.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automatic docking device for the joints of offshore fluid transport pipelines with simple operation and high working efficiency.

In order to solve the above-mentioned problems, the technical solution adopted by the present invention is: the automatic docking device for the joint of the offshore fluid delivery pipeline includes two conical guide cylinders with inclined large ports facing downward, and one of the guide cylinders passes through the first The installation frame is installed on the delivery pipe of the tanker, and the other guide cylinder is installed on the connecting pipe of the loading and unloading arm through the second installation frame. The two guide cylinders are located on the same side of the delivery pipe and the connection pipe. side and the same inclination angle, the guide cylinder on the connecting pipe is located above the side of the guide cylinder on the delivery pipe, and the horizontal distance from the axis of the delivery pipe to the axis of the guide cylinder installed on the delivery pipe is the same as the The horizontal distance from the axis of the connecting pipe to the axis of the guide cylinder installed on the connecting pipe is the same; a winch is provided on one side of the loading and unloading arm, and the traction wire rope of the winch passes through the guide cylinder on the connecting pipe and the The guide cylinder on the delivery pipe is fixed on the first installation frame.

In the above-mentioned technical solution of the automatic docking device for the interface of the offshore fluid conveying pipeline, a more specific technical solution may also be: the winch is a constant-force tension winch.

Further, the angle a between the axis of the guide cylinder and the horizontal line is 30°-50°.

Owing to adopting above-mentioned technical scheme, the present invention has following beneficial effect compared with prior art:

1. The automatic docking device of the sea fluid conveying pipeline interface of the present invention includes two conical guide cylinders with inclined large ports facing downwards, one of which is installed on the conveying pipe of the tanker, and the other guide cylinder is installed on the loading and unloading arm On the connecting pipe, a winch is provided on one side of the loading and unloading arm, and the traction wire rope of the winch passes through the guiding cylinder on the connecting pipe and the guiding cylinder on the conveying pipe in turn and is fixed on the first mounting frame. Through the wire rope traction of the winch, the two guide cylinders are kept at a limited position to move and gradually fit together, so as to realize the automatic docking of the connecting pipe port of the loading arm and the conveying pipe port of the tanker, with simple operation, high work efficiency and low labor intensity.

2. Adopt constant force tension winch. Keep the traction wire rope at a certain tension all the time, the guide cylinder keeps moving at a limited position, and the docking positioning is accurate.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

As shown in Figure 1, an automatic docking device for the interface of an offshore fluid delivery pipeline includes two conical guide cylinders 2 with the large port facing downward, one of which is mounted on the tanker through the first installation frame 1 On the conveying pipe, another guide cylinder 2 is installed on the connecting pipe of the loading and unloading arm through the second mounting frame 3. The two guide cylinders 2 are located on the same side of the conveying pipe and the connecting pipe and have the same inclination angle. The axis of the guide cylinder is in line with the The included angle a of the horizontal line is 30 degrees; the guide cylinder 2 on the connecting pipe is located above the side of the guide cylinder 2 on the conveying pipe, and the horizontal distance from the axis of the conveying pipe to the axis of the guide cylinder 2 mounted on the conveying pipe is related to the connection The horizontal distance from the axis of the pipe to the axis of the guide cylinder 2 installed on the connecting pipe is the same; a winch 5 is installed on one side of the loading and unloading arm, and the traction wire rope 4 of the winch 5 is sequentially installed on the guide cylinder 2 on the connecting pipe and on the conveying pipe. The guide cylinder 2 is fixed on the first installation frame 1, and the winch 5 adopts a constant force tension winch.

During work, one guide cylinder 2 is installed on the delivery pipe of the tanker through the first installation frame 1, and the other guide cylinder 2 is installed on the connecting pipe of the loading and unloading arm through the second installation frame 3, and the traction wire rope 4 of the winch 5 is sequentially Pass through the guide cylinder 2 on the connecting pipe and the guide cylinder 2 on the conveying pipe and fix it on the first installation frame 1, operate and adjust the loading and unloading arm to make the connecting pipe port close to the conveying pipe port of the tanker, and pull the connecting pipe through the wire rope 4 The guide cylinder 2 on the top and the guide cylinder 2 on the conveying pipe gradually fit together to realize the docking of the connecting pipe port of the loading and unloading arm with the conveying pipe port of the tanker, with precise docking positioning and high working efficiency.

Example 2

The difference between the automatic docking device of the offshore fluid transportation pipeline interface of this embodiment and the embodiment 1 is that:

The included angle a between the axis of the guide cylinder and the horizontal line is 50 degrees.

All the other features are the same as in Example 1.

Claims (3)

1. a kind of offshore fluid conveyance conduit interface automatic butt jointing device, it is characterised in that：Include two tilting large ports Conical guide cylinder directed downwardly（2）, one of them described guide cylinder（2）By the first installing rack（1）It is mounted in the delivery pipe of groove ship On, another described guide cylinder（2）By the second installing rack（3）It is mounted in the connecting tube of loading arm, two guide cylinders（2） Positioned at phase the same side of the delivery pipe and the connecting tube and angle of inclination is identical, the guide cylinder in the connecting tube（2）Position Guide cylinder in the delivery pipe（2）The top of side, the delivery pipe axis is to the guide cylinder being mounted in the delivery pipe（2） The horizontal range of axis is with the connecting tube axis to the guide cylinder being mounted in the connecting tube（2）The horizontal range of axis is identical； Winch is provided with the side of the loading arm（5）, the winch（5）Haulage cable（4）Sequentially pass through in the connecting tube Guide cylinder（2）With the guide cylinder in the delivery pipe（2）And it is fixed on first installing rack（1）On.

2. offshore fluid conveyance conduit interface automatic butt jointing device according to claim 1, it is characterised in that：The winch （5）For constant force tension windlass.

3. offshore fluid conveyance conduit interface automatic butt jointing device according to claim 1 and 2, it is characterised in that：It is described Guide cylinder（2）Axis and horizontal angle a angles be 30 degree～50 degree.