A single point mooring system pressure testing platform for quick installation

By arranging the platform frame on the cylinder of the single-point mooring system and using anti-overturning support rods and bolt connections, the problem of damage to the flange surface during pressure testing during the installation of offshore platform facilities was solved, and safe and efficient pressure testing was achieved.

CN119666414BActive Publication Date: 2026-01-16SHENZHEN OFFSHORE OIL ENG UNDERWATER TECH CO LTD
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Patent Information

Application Number
CN202411699475.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2026-01-16
Estimated Expiration
2044-11-26

AI Technical Summary

Technical Problem

In the installation of offshore platform facilities, existing technologies make it difficult to safely and quickly complete the pressure testing of a single-point mooring system without damaging the flange surface.

Method used

Design a pressure testing platform for a single-point mooring system for rapid installation. The platform frame is arranged on a single-point cylinder and fixed by anti-overturning support rods and bolt connections to avoid welding damage to the flange face. The anti-overturning support rods prevent overturning.

Benefits of technology

This allows for safe and efficient pressure testing without damaging the flange surface, improving the reliability and safety of the construction process.

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Abstract

The application discloses a kind of single-point mooring system pressure test platform for quick installation, which includes single-point cylinder and flange, flange is connected on single-point cylinder upside, platform frame is arranged above single-point cylinder, anti-overturning support rod is connected on platform frame, anti-overturning support rod is inserted into single-point cylinder away from platform frame one end, first bolt hole is provided on platform frame, bolt is inserted into the second bolt hole of flange, so as to fix platform frame on single-point cylinder.The single-point mooring system pressure test platform for quick installation provided by the application arranges platform frame on the upper end of single-point cylinder connected with flange, inserts anti-overturning support rod connected with platform frame into single-point cylinder, anti-overturning support rod abuts against inner wall of single-point cylinder, connects first bolt hole of platform frame and second bolt hole of flange by bolt, realizes welding-free by bolt fixation, and anti-overturning support rod prevents overturning.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of offshore platform installation, and particularly relates to a single point mooring system pressure test platform for rapid installation. BACKGROUND

[0002] In the installation of offshore platforms, an FPSO is fixed at sea through a single point mooring system. Before the FPSO is connected to the single point mooring system, the process pipelines in the single point mooring system need to be pressure tested.

[0003] Pressure test construction is usually operated on the flange at the top of the single point, which requires that the flange surface cannot be damaged and the work can be safely and quickly completed. For this work, how to safely and efficiently complete the pressure test work becomes an important link of the engineering project.

[0004] Therefore, it is urgent to design a single point mooring system pressure test platform for rapid installation to solve the above-mentioned problem of protecting the flange surface at the top of the single point mooring system. SUMMARY

[0005] To solve the technical problem that pressure test construction is usually operated on the flange at the top of the single point, which requires that the flange surface cannot be damaged and the work can be safely and quickly completed, a single point mooring system pressure test platform for rapid installation is provided to solve the problem of protecting the flange surface at the top of the single point mooring system and safely and efficiently completing the pressure test work.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the single point mooring system pressure test platform for rapid installation of the present application is as follows:

[0007] A single point mooring system pressure test platform for rapid installation, comprising a single point cylinder and a flange, the flange being connected to the upper side of the single point cylinder, a platform frame being arranged above the single point cylinder, an anti-overturning support rod being connected to the platform frame, the anti-overturning support rod being inserted into the single point cylinder at the end away from the platform frame, a first bolt hole being arranged on the platform frame, a bolt being inserted into the first bolt hole and the second bolt hole of the flange, so that the platform frame is fixed on the single point cylinder.

[0008] Further, the flange is welded on the port of the single point cylinder in the circumferential direction of the port.

[0009] Further, the platform frame comprises a first support beam and a rectangular frame, two first support beams being welded on the rectangular frame at intervals.

[0010] Further, two second support beams are welded between each of the two first support beams and the rectangular frame, and the two second support beams on the same side are arranged at intervals.

[0011] Further, a plurality of third support beams are welded between the two first support beams and the rectangular frame.

[0012] Further, the plurality of third support beams are arranged in a rectangular shape between the two first support beams and the rectangular frame.

[0013] Further, an anti-overturning support rod is welded to the lower side of the third support beam, and the anti-overturning support rod is in abutment with the inner wall of the single-point cylinder at a position away from the third support beam.

[0014] Further, a first bolt hole is formed in each of the plurality of third support beams, and a bolt is inserted into the first bolt hole and connected to a second bolt hole.

[0015] Further, a handrail is welded along the circumference of the rectangular frame.

[0016] Further, a steel plate is welded to the rectangular frame to facilitate the boarding of workers.

[0017] The single-point mooring system pressure testing platform for rapid installation has the following advantages:

[0018] By arranging the platform frame on the upper end of the single-point cylinder connected with the flange, inserting the anti-overturning support rod connected with the platform frame into the single-point cylinder, and abutting the anti-overturning support rod with the inner wall of the single-point cylinder, the first bolt hole of the platform frame and the second bolt hole of the flange are connected by the bolt, and the platform frame is fixed on the single-point cylinder. The first bolt hole designed on the platform frame and the second bolt hole of the flange on the top of the single-point cylinder are aligned, and are fixed by the bolt to realize welding-free fixation, and the anti-overturning support rod below realizes its own fixation and prevents overturning. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the overall structure of the single-point mooring system pressure testing platform for rapid installation.

[0020] Marked in the figure:

[0021] 1, single-point cylinder; 2, flange; 3, platform frame; 31, rectangular frame; 32, first support beam; 33, second support beam; 34, third support beam; 4, anti-overturning support rod; 5, handrail; 6, steel plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Those skilled in the art will appreciate that the features of the various embodiments can be combined with features of other embodiments in any manner within the scope of the application. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0024] Reference will now be made to the drawings, in which Figure 1 A pressure testing platform for a quick installation single point mooring system of the present application is described.

[0025] As Figure 1 shown, the pressure testing platform for a quick installation single point mooring system of the present application includes a single point cylinder 1 and a flange 2 connected to the upper side of the single point cylinder 1, a platform frame 3 arranged above the single point cylinder 1, an anti-overturning support rod 4 connected to the platform frame 3 and inserted into the single point cylinder 1 at the end away from the platform frame 2, and a first bolt hole provided on the platform frame 3 and a second bolt hole provided on the flange 2, with a bolt inserted into the first and second bolt holes to fix the platform frame 3 to the single point cylinder 1.

[0026] The platform frame 3 is arranged on the upper end of the single point cylinder 1 connected with the flange 2, the anti-overturning support rod 4 connected with the platform frame 3 is inserted into the single point cylinder 1, the anti-overturning support rod 4 abuts against the inner wall of the single point cylinder 1, and the first bolt hole of the platform frame 3 and the second bolt hole of the flange 2 are connected by a bolt to fix the platform frame 3 to the single point cylinder 1. The first bolt hole designed on the platform frame 3 and the second bolt hole of the flange 2 on the top of the single point cylinder 1 are aligned, and are fixed by a bolt to realize welding-free fixation, and the anti-overturning support rod 4 below realizes fixation and prevents overturning.

[0027] Further, as Figure 1 shown, the flange 1 is circumferentially welded on the port of the single point cylinder 1, the platform frame 3 includes a first support beam 32 and a rectangular frame 31, and two first support beams 32 are spaced apart and welded on the rectangular frame 31, and two second support beams 33 are welded between each of the two first support beams 32 and the rectangular frame 31, and the two second support beams 33 on the same side are spaced apart.

[0028] In this embodiment, preferably, the flange 2 is circumferentially welded on the upper end of the single point cylinder 1, the platform frame 3 is composed of a first support beam 32 and a rectangular frame 31, two first support beams 32 are spaced apart and welded on the rectangular frame 31, and the two first support beams 32 are the same in shape and size, two second support beams 33 are spaced apart and welded between each of the two first support beams 32 and the rectangular frame 31, and the two second support beams 33 on the two sides are the same in spacing distance, so as to stabilize the structure of the platform frame 3.

[0029] Further, as shown in Figure 1 The two first support beams 32 and the rectangular frame 31 are sequentially welded with a plurality of third support beams 34; the plurality of third support beams 34 are arranged in a rectangular shape between the two first support beams 32 and the rectangular frame 31; the lower side of the third support beam 34 is welded with an anti-overturning support rod 4, and the anti-overturning support rod 4 is in abutment with the inner wall of the single-point cylinder 1 away from one end of the third support beam 34.

[0030] In this embodiment, preferably, the two first support beams 32 and the rectangular frame 31 are sequentially welded with a plurality of third support beams 34, the plurality of third support beams 34 are of the same shape and size, and the plurality of third support beams 34 are connected in a rectangular shape between the two first support beams 32 and the rectangular frame 31.

[0031] The plurality of third support beams 34 are all above the single-point cylinder 1, the lower side of the third support beam 34 is welded with an anti-overturning support rod 4, and the anti-overturning support rod 4 is in abutment with the inner wall of the single-point cylinder 1 away from one end of the third support beam 34, so as to realize the characteristics of welding-free, self-fixing, anti-overturning, etc., avoid damage to the flange surface caused by welding fixation, ensure the safety of temporary operation, and ensure the reliability of pressure test construction.

[0032] Further, as shown in Figure 1 The plurality of third support beams 34 are all above the single-point cylinder 1, the lower side of the third support beam 34 is welded with an anti-overturning support rod 4, and the anti-overturning support rod 4 is in abutment with the inner wall of the single-point cylinder 1 away from one end of the third support beam 34, so as to realize the characteristics of welding-free, self-fixing, anti-overturning, etc., avoid damage to the flange surface caused by welding fixation, ensure the safety of temporary operation, and ensure the reliability of pressure test construction.

[0033] In this embodiment, preferably, the plurality of third support beams 34 are all provided with first bolt holes, the first bolt holes are corresponding to the second bolt holes of the flange 2, and the bolts are connected with the second bolt holes after being inserted into the first bolt holes; and the handrail 5 is welded along the circumference of the rectangular frame 31, and the steel plate 6 is welded on the rectangular frame 31, so as to facilitate the workers to board and ensure the safety of the construction personnel.

[0034] The working steps of the single-point mooring system pressure test platform for quick installation according to the present application are as follows:

[0035] The platform frame 3 is hoisted to the top of the single-point cylinder 1 by a crane, the anti-overturning support rod 4 below the platform frame 3 is inserted into the single-point cylinder 1, the anti-overturning support rod 4 is in close contact with the inner wall of the single-point cylinder 1, and plays a role in preventing overturning; the hook of the crane is rotated to align the first bolt hole of the third support beam 34 with the second bolt hole on the flange 2 of the top of the single-point cylinder 1, and then the platform frame 3 is fixed to the single-point cylinder 1 by bolts.

[0036] Based on the single point mooring system pressure test platform for quick installation, the platform frame 3 is arranged on the upper end of the single point cylinder 1 connected with the flange 2, the anti-overturning support rod 4 connected with the platform frame 3 is inserted into the single point cylinder 1, the anti-overturning support rod 4 abuts against the inner wall of the single point cylinder 1, the first bolt hole of the platform frame 3 and the second bolt hole of the flange 2 are bolted, and the platform frame 3 is fixed on the single point cylinder 1. The first bolt hole designed on the platform frame 3 and the second bolt hole of the flange 2 on the top of the single point cylinder 1 are aligned, and the welding-free is realized through the bolt fixation, and the self-fixing and anti-overturning are realized through the anti-overturning support rod 4 below.

[0037] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above-mentioned description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the claims of the present application.

Claims

1. A pressure testing platform for a quick installation single point mooring system, characterized in that, The single-point cylinder is connected with the flange, the platform frame is arranged above the single-point cylinder, the anti-overturning support rod is connected to the platform frame, the anti-overturning support rod is inserted into the single-point cylinder, the first bolt hole is arranged on the platform frame, the bolt is inserted into the second bolt hole of the flange, and the platform frame is fixed on the single-point cylinder; The platform frame comprises the first support beam and the rectangular frame, the two first support beams are welded on the rectangular frame at intervals, the multiple third support beams are welded between the two first support beams and the rectangular frame in a head-to-tail mode, the anti-overturning support rod is welded to the lower side of the third support beam, and the anti-overturning support rod is in abutment with the inner wall of the single-point cylinder at the end away from the third support beam; The flange is welded on the single-point cylinder along the circumferential direction of the single-point cylinder; the two second support beams are welded between the two first support beams and the rectangular frame, and the two second support beams on the same side are arranged at intervals; the multiple third support beams are arranged in a rectangular mode between the two first support beams and the rectangular frame; the first bolt hole is arranged on the multiple third support beams, the bolt is connected with the second bolt hole after being inserted into the first bolt hole, the handrail is welded along the circumferential direction of the rectangular frame, and the steel plate is welded on the rectangular frame to facilitate the workers to get on the platform.

Citation Information

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