Subsea Protective Sleeve Assembly With Cleat Locking
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Solution Overview
Problem
Existing cable protection systems for offshore subsea installations are inefficient in terms of installation speed, failing to adequately protect cables from abrasion and other environmental hazards while requiring rapid deployment before adverse weather sets in.
Innovation Solution
A protective sleeve system comprising top and bottom half sleeves that mate to form a cleat or lock housing, secured by locking members, allowing for rapid and secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional cable protection systems are used, then cables are protected from abrasion and environmental hazards, but installation speed is slow and deployment time is excessive
Solution Approach 1:
The protective sleeve is divided into two separate halves that can be independently handled and assembled around the cable. This segmentation allows the sleeves to be opened, placed around the cable, and then closed, dramatically speeding up installation compared to traditional single-piece protective systems that require complex cutting and joining operations.
Solution Approach 2:
The two half-sleeves are designed to mate together with complementary protruding and receptive mating features that form an integrated protective enclosure when joined. This merging of two simple components creates a complete protective system that is both fast to assemble and provides full protection equivalent to traditional single-piece systems.
2Reliability
If traditional protective sleeve assembly methods are used, then secure protection is achieved, but the assembly process is complex and time-consuming
Solution Approach 1:
The assembly is segmented into simple modular components (two half-sleeves with mating features) that can be easily handled and assembled. Each half-sleeve is a simple open structure that can be independently positioned, reducing assembly complexity compared to traditional systems requiring multiple fasteners or complex joining mechanisms.
Solution Approach 2:
The mating features on the two half-sleeves are designed to combine into a secure interlocking assembly. The protruding feature on one half-sleeve fits into the receptive feature on the other, creating a reliable connection that ensures secure protection while maintaining simple assembly procedures.
3Loss of time
If rapid installation is prioritized, then deployment time is reduced, but protection security may be compromised
Solution Approach 1:
The segmented half-sleeve design enables rapid assembly by allowing the protective covering to be opened and placed around the cable in simple steps. The segmented structure eliminates the need for time-consuming cutting, fitting, and joining operations required by traditional single-piece systems.
Solution Approach 2:
The mating features are designed to combine quickly and securely, providing reliable protection as soon as the halves are joined. The interlocking design ensures that protection security is maintained immediately upon assembly, with no additional time-consuming steps required to secure the protective covering.
Data Source
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Figure 2A
AI summary
A protective sleeving system for use in, for example, offshore subsea applications is provided. The protective sleeving system includes a top half sleeve and a bottom half sleeve for mating together to protect an underwater feature, where the top half sleeve and the bottom half sleeves include lobes that come together to form a cleat when the top half sleeve and the bottom half sleeve are mated together, where a locking member is used to clamp the cleat to secure the top half sleeve and the bottom half sleeve together.