Potted Pipe Fitting Structure for Continuous Reinforcement Anchoring
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Solution Overview
Problem
Pipeline systems face operational inefficiencies and reliability issues due to weak points in pipe fittings caused by gaps between reinforcement provided by fittings and reinforcement strips in pipe segments, leading to potential breaches under fluid pressure.
Innovation Solution
A potted pipe fitting design that includes an inner and outer fitting body with a potting cavity, where the reinforcement strips are anchored with cured potting material, ensuring continuous reinforcement and improved anchoring strength through a uniform wedge-shaped axial cross-section profile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcement strips are anchored in a potting cavity of a pipe fitting, then the pipe fitting can be secured to pipe segment tubing, but a gap may develop between the reinforcement provided by the pipe fitting and the reinforcement strip, creating a weak point
Solution Approach 1:
The pipe fitting is divided into an inner fitting body and an outer fitting body, with the reinforcement strip positioned between them. This segmentation allows the reinforcement strip to be continuously supported along its length, eliminating gaps that would create weak points while maintaining the anchoring function in the potting cavity.
Solution Approach 2:
The reinforcement strip acts as an intermediary element between the inner and outer fitting bodies. By positioning the reinforcement strip between these two fitting bodies and anchoring it in the potting cavity, the system achieves continuous reinforcement without gaps, resolving the contradiction between strength and reliability.
2Strength
If a reinforcement strip is disposed between the internal pressure sheath layer and the outer sheath layer at a target lay angle, then tensile strength and hoop strength are improved, but anchoring in the pipe fitting may cause the strip to flare away from the internal pressure sheath layer
Solution Approach 1:
The fitting is segmented into inner and outer bodies that collectively cradle the reinforcement strip. This segmentation allows the strip to maintain its target lay angle and structural integrity while being properly anchored, preventing it from flaring away from the internal pressure sheath layer.
Solution Approach 2:
The reinforcement strip is nested between the inner and outer fitting bodies, which are themselves nested within the pipe segment tubing. This nested arrangement ensures the reinforcement strip maintains its proper position and orientation, preventing flaring while preserving tensile strength.
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
Enhances the reinforcement of pipe segments, reducing the likelihood of breaches and improving pipeline operational efficiency and reliability by providing consistent anchoring and stress distribution across the potting cavity.
Implementation Method 1
cured potting material implemented around the portion of the reinforcement strip in the potting cavity to secure the potted pipe fitting to the pipe segment
Data Source
AI summary
Techniques for implementing a pipeline system including a pipe segment and a potted pipe fitting. The pipe segment includes tubing having an internal pressure sheath layer, a reinforcement strip, and an outer sheath layer. The potted pipe fitting includes an outer fitting body disposed around a portion of the reinforcement strip, an inner fitting body disposed between the portion of the reinforcement strip and the internal pressure sheath layer, in which the inner fitting body directly abuts the internal pressure sheath layer at least up to a point where the reinforcement strip begins to flare away from the internal pressure sheath layer and a potting cavity of the potted pipe fitting is defined at least between an inner surface of the outer fitting body and an outer surface of the inner fitting body, and cured potting material implemented around the portion of the reinforcement strip in the potting cavity.