Pipe Support Wedge Device for Offshore Rigs
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Solution Overview
Problem
Existing apparatuses for vertically supporting pipes in oil production rigs, particularly on offshore drilling platforms, are inadequate in supporting pipes with different diameters and handling long, heavy pipes, as they lack simplicity and versatility in clamping and releasing mechanisms.
Innovation Solution
The apparatus features a wedge device on the inner side of an outer frame that allows for vertical movement to clamp and release pipes, with adjustable wedge devices and a centering device that can be constructed from multiple parts for easy assembly and alignment, along with a hydraulic positioning system for high-force applications, and includes an outer adapter for size adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed clamping structure is used, then the pipe can be securely clamped, but it cannot accommodate pipes with different diameters
Solution Approach 1:
The clamping structure uses movable clamping elements that can adjust their position radially to accommodate pipes of different diameters. The clamping arms are designed to move along guide rails or tracks, allowing dynamic adjustment of the clamping radius while maintaining secure contact with the pipe surface.
Solution Approach 2:
The clamping force and clamping radius are made adjustable through hydraulic or mechanical actuation systems. By changing the radial position of the clamping elements and adjusting the applied force, the system can adapt to various pipe diameters and weight conditions without requiring structural modifications.
2Force
If large and heavy structural components are used to support heavy pipes, then high support forces are achieved, but the apparatus becomes difficult to assemble and adjust
Solution Approach 1:
The support structure is divided into modular segments including separate clamping units, support arms, and base sections. These modular components can be assembled and adjusted independently, allowing heavy-duty support capabilities while maintaining ease of assembly and reconfiguration through standardized connection interfaces.
Solution Approach 2:
Hydraulic cylinders and actuators are used to generate high clamping and support forces without requiring large mechanical structures. The hydraulic system provides powerful force multiplication, enabling the apparatus to handle heavy pipes through compact, easily adjustable mechanical components rather than oversized structural elements.
3Strength
If the outer frame is constructed as a single piece, then structural strength is maximized, but pipe insertion from the side becomes difficult
Solution Approach 1:
The outer frame is constructed from multiple modular sections that can be assembled together to form a complete structural enclosure. These segmented frame sections provide the necessary mechanical strength through rigid connections while allowing side access for pipe insertion during the assembly process or for maintenance operations.
4Manufacturing precision
If precise alignment mechanisms are added to the apparatus, then pipe alignment is improved, but the device complexity increases
Solution Approach 1:
The alignment system utilizes self-aligning features such as tapered guides, spherical bearing surfaces, or cam mechanisms that automatically adjust the pipe position during insertion or clamping. These passive alignment mechanisms achieve precise pipe alignment without requiring complex active control systems, motors, or sensors, thereby maintaining simplicity while ensuring accurate positioning.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables universal use across various pipe sizes and weights, providing secure, maintenance-free support with minimal material and time requirements, and facilitates easy manipulation and alignment of pipes, enhancing operational efficiency and adaptability.
Implementation Method 1
at least one wedge device for clamping the pipe is arranged in the area of an inner side of the outer frame... The wedge device clamps the pipe relative to the outer frame
Implementation Method 2
providing the positioning device of the wedge device with at least one hydraulic cylinder for setting the position
Data Source
AI summary
An apparatus for vertically supporting pipes in oil production rigs. The apparatus includes an outer frame and a centering device. In the area of an inner side of the outer frame, at least one wedge device is provided for clamping the pipe. The outer frame is connected to the centering device so as to be vertically aligned and facing upwardly. A wedge device may additionally include a positioning device and a carrier provided with at least one wedge.