CN216562517U

CN216562517U - Umbilical cable J-shaped pipe suitable for dragging in narrow space

Info

Publication number: CN216562517U
Application number: CN202121873070.XU
Authority: CN
Inventors: 陈斌; 苏锋; 张飞; 曹永�; 范玉杨; 杨安; 李斌; 刘立新; 张汝彬; 何宁强
Original assignee: Offshore Oil Engineering Co Ltd
Current assignee: Offshore Oil Engineering Co Ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-05-17
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an umbilical cable J-shaped pipe suitable for being dragged in a narrow space, which comprises a main pipe, a bell mouth, a pipe protection clamp, a straight pipe and a bend limiter, wherein the main pipe is connected with the bell mouth; the main pipe comprises a vertical pipe and an arc pipe, the tail end of the vertical pipe is communicated with one end of the arc pipe, the other end of the arc pipe is communicated with one end of the straight pipe, the other end of the straight pipe is provided with a bell mouth, and the bell mouth is provided with the bend limiter; the pipe protecting clamp comprises a supporting part and a fixing part, the supporting part is fixed on the main leg of the jacket, and the fixing part is sleeved on the periphery of the vertical pipe. The umbilical cable bending and guiding device can realize bending and guiding of the umbilical cable without dismantling equipment on an old platform, reduces engineering cost and shortens project cycle.

Description

Umbilical cable J-shaped pipe suitable for dragging in narrow space

Technical Field

The utility model relates to the field of ocean engineering equipment, in particular to an umbilical cable J-shaped pipe suitable for being dragged in a narrow space.

Background

Umbilicals are one of the key pieces of equipment in subsea production systems. An umbilical is a "nerve/lifeline" that connects between the topside facility and the subsea production system. The umbilical cable system is a combination of a cable (a power cable or a signal cable), an optical cable (a single-mode or multi-mode optical cable) and a hydraulic or chemical agent pipe (a steel pipe or a steel pipe), and mainly functions to connect the upper module and the underwater production system, provide an electric hydraulic power and a chemical injection channel for the underwater production system, and provide a data transmission channel for an upper module control signal and the underwater production system.

When the underwater control system is designed by depending on the original platform, the existing facilities of the in-service platform are usually adopted as the basis of the design of the umbilical cable protection pipe. Under some special circumstances, the pillar checkpost that original facility was reserved is less, can restrict the size of newly-built pillar like this to influence the dilatory construction of umbilical cable. If the scheme of dismantling old facilities is adopted, the newly-built protective pipe and clamp have to overcome the risk of difficult dragging, the project cost is directly increased, and the project development is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides an umbilical cable J-shaped pipe suitable for being pulled in a narrow space, which enables the pulling construction operation of the umbilical cable to be more convenient under the condition of not dismantling an old protecting pipe clamp and an old protecting pipe.

In order to solve the technical problem, the utility model provides an umbilical cable J-shaped pipe suitable for being dragged in a narrow space, which comprises a main pipe, a bell mouth, a pipe protection clamp, a straight pipe and a bend limiter, wherein the main pipe is connected with the bell mouth;

the main pipe comprises a vertical pipe and an arc pipe, the tail end of the vertical pipe is communicated with one end of the arc pipe, the other end of the arc pipe is communicated with one end of the straight pipe, the other end of the straight pipe is provided with a bell mouth, and the bell mouth is provided with the bend limiter;

the pipe protecting clamp comprises a supporting part and a fixing part, the supporting part is fixed on the main leg of the jacket, and the fixing part is sleeved on the periphery of the vertical pipe.

Further, the supporting part is a straight rod, the fixing part is a cylinder, one end of the straight rod is fixed on the jacket main leg, and the other end of the straight rod is fixed on the side face of the cylinder.

Further, the length of the straight pipe is 800 mm; the curvature radius of the circular arc tube is 5500mm, and the central angle of the circular arc tube is 60-70 degrees.

Further, the inner diameters of the main pipe and the umbilical cable protection pipe are equal.

Further, the height of the bell mouth is 1500 mm.

The utility model has the technical effects that: when the umbilical cable protection pipe is added to an old platform, the J-shaped pipe arranged at the tail end of the protection pipe can bend and guide the umbilical cable without disassembling the protection pipe clamp, so that the risk of cutting an anode is avoided, the underwater dragging operation of the umbilical cable is facilitated, and the underwater construction amount is reduced; the bending limiter is high in mud surface attaching degree, and the number of cushion blocks is saved; the arrangement of the straight pipe section meets the bending radius requirement of the umbilical cable dragging pipe penetration, and the fitting degree is considered, so that the dragging pipe penetration risk is reduced. The utility model adopts a large-distance external suspension design, utilizes the protective pipe clamp on the old platform to fix, ensures the strength of the protective pipe, ensures the safe interval of construction, effectively controls the project cost and progress, and achieves the purposes of cost reduction and efficiency improvement.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Description of reference numerals: 1. a vertical tube; 2. a circular arc tube; 3. a straight pipe; 4. a bell mouth; 5. limiting the pipe; 6. And a protective pipe clamp.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

Embodiment, as shown in fig. 1, the embodiment of the present invention provides an umbilical cable J-shaped pipe suitable for being pulled in a narrow space, and the specific implementation of each step is as follows:

an umbilical cable J-shaped pipe suitable for being dragged in a narrow space comprises a main pipe, a straight pipe 3, a protective pipe clamp 6, a bell mouth 4 and a bending limiter.

Be responsible for and include standpipe 1 and circular arc pipe 2, standpipe 1 and umbilical cable pillar intercommunication, the one end intercommunication of end and circular arc pipe 2, the other end of circular arc pipe 2 and the one end intercommunication of straight tube 3, the other end and the welding of horn mouth 4 of straight tube 3, 4 installation limit return bends 5 of horn mouth, limit return bends 5 can be followed horn mouth 4 and dismantled to change limit return bends 5's size according to operating condition, reach the purpose that makes the bend radius of umbilical cable fully release.

In this embodiment, the length of the straight pipe 3 is 800mm, and the length is long enough, so that the umbilical cable sealing device can be completely sealed in the straight pipe 3 section, and the untight sealing caused by the inclination can be avoided.

The radius of curvature of the circular arc tube 2 is 5500mm, and the central angle is 64.99 DEG

The height of the bell mouth 4 from the mud surface is 1500mm, and the height can ensure that the curve limiter can be dragged and installed on the premise of not ditching.

The inner diameter of the main pipe is consistent with that of the umbilical cable protection pipe, diameter reduction does not occur, and the radius of the main pipe must meet the requirement that the umbilical cable and a rigid dragging head thereof can be dragged smoothly.

The supporting part is a steel pipe, the fixing part is a circular pipe clamp barrel, one end of the steel pipe is welded and fixed on the main leg of the jacket, and the other end of the steel pipe is fixed around the barrel through bolts.

When the umbilical cable pulls the upper platform, the complete sealing of the sealing device on the umbilical cable in the J-shaped pipe straight pipe 3 is realized by the pulling force transmission of the pulling rope.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model. The protection scope of the utility model is subject to the claims.

Claims

1. The utility model provides an umbilical cable J type pipe suitable for narrow and small space is dilatory which characterized in that: comprises a main pipe, a bell mouth, a protective pipe clamp, a straight pipe and a bend limiter;

2. An umbilical cable J-tube suitable for towing in a narrow space according to claim 1 wherein: the supporting part is a straight rod, the fixing part is a cylinder, one end of the straight rod is fixed on the main leg of the jacket, and the other end of the straight rod is fixed on the side face of the cylinder.

3. An umbilical cable J-tube suitable for towing in a narrow space according to claim 1 wherein: the length of the straight pipe is 800 mm; the curvature radius of the circular arc tube is 5500mm, and the central angle is 64.99 degrees.

4. An umbilical cable J-tube suitable for towing in a narrow space according to claim 1 wherein: the inner diameters of the main pipe and the straight pipe are equal.

5. An umbilical cable J-tube suitable for towing in a narrow space according to claim 1 wherein: the height of the bell mouth is 1500 mm.