High Temperature Fiber Reinforced Pipe Design

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional flexible pipes fail to maintain performance and longevity when used at elevated temperatures, particularly in applications involving pressurized fluids, as they tend to collapse, buckle, or crack under such conditions.

Innovation Solution

A flexible fiber-reinforced pipe design featuring an inner tubular layer made of high-temperature thermoplastic, with multiple reinforcing layers and an outer sheath, allowing for spoolability and handling in low temperatures while maintaining structural integrity and pressure resistance at elevated temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional flexible pipe materials are used, then the pipe can be spooled and handled in low temperature environments, but the pipe fails to maintain structural integrity and performance at elevated temperatures

Engineering Contradiction:

Improveelevated temperature resistanceVSAvoidstructural integrity at high temperature

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The pipe employs a composite structure combining conventional flexible pipe materials with high-temperature resistant components. Specifically, it uses a conventional flexible pipe body for low-temperature handling and spoolability, while incorporating a high-temperature resistant liner and high-temperature resistant reinforcing layers to maintain structural integrity at elevated temperatures up to 120°C.

Inventive Principle:

Principle #40Composite materials

2Ease of operation

If the pipe is made flexible for spooling and handling, then it can be easily installed and transported, but it collapses, buckles, or cracks under high pressure and elevated temperature conditions

Engineering Contradiction:

Improvespoolability and handlingVSAvoidpressure resistance at elevated temperature

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The pipe is segmented into distinct functional layers: a conventional flexible pipe body that provides spoolability and handling ease, a high-temperature resistant liner that prevents fluid leakage and diffusion, and high-temperature resistant reinforcing layers that provide pressure containment. Each layer performs its specific function without interfering with the others.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different parts of the pipe have different properties optimized for their specific functions. The pipe body maintains conventional flexibility for handling, while the liner and reinforcing layers are specifically designed with high-temperature resistance and pressure containment properties where needed.

Inventive Principle:

Principle #3Local quality

3Ease of manufacture

If the pipe structure is simplified for ease of manufacture, then production cost and complexity are reduced, but the pipe cannot simultaneously achieve low-temperature flexibility and high-temperature performance

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidtemperature range performance

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

Rather than creating a completely new complex structure, the invention uses a composite approach combining conventional pipe materials with high-temperature resistant components. This allows the pipe to achieve broad temperature range performance while maintaining relatively simple manufacturing processes similar to conventional flexible pipe production.

Inventive Principle:

Principle #40Composite materials

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

The pipe effectively withstands elevated temperatures and high pressures, preventing fluid leakage and diffusion, and resisting radial and axial loads, ensuring reliable performance and longevity in harsh conditions.

Implementation Method 1

The inner tubular layer can act to contain the fluid passing through the pipe, preventing it from leaking or diffusing through pipe

Methodology Applied

Scientific EffectPhysical containment: Physical Containment

Implementation Method 2

the first reinforcing layer and second reinforcing layer acting to react to radial and axial loading imposed on the pipe

Methodology Applied

Scientific EffectMechanical reinforcement:

Implementation Method 3

an insulating layer provided surrounding the inner tubular layer, the first reinforcing layer and the second reinforcing layer to insulate the pipe and the fluid passing through the pipe

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS9243727B2High temperature fiber reinforced pipe

Publication Date: 2016.01.26 SHAWCOR LTD

AI summary

A high temperature flexible pipe and method of making a high temperature flexible pipe is provided. The pipe can have an inner tubular layer formed of a high temperature thermoplastic, a first reinforcing layer, a second reinforcing layer and an outer sheath. In one aspect, an insulating layer may be provided between the second reinforcing layer and the outer sheath. A method of making a flexible pipe is also provided. The first reinforcing layer is wound around the inner tubular layer and the second reinforcing layer is wound around the first reinforcing layer. An outer sheaf can be formed over the second reinforcing layer. In another aspect, an insulating layer can be formed over the second reinforcing layer before an outer jacket is formed over the insulating layer.