Pipeline Interstitial Space Apparatus for Corrosion Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for creating a monitorable interstitial space around pipelines are not straightforward due to environmental challenges and instability, unlike in tank environments, making it difficult to maintain the integrity and prevent corrosion, especially where condensation occurs under insulation.
Innovation Solution
A multi-layered apparatus comprising a fluid impervious material, adhesive layers, a reinforcement scrim layer, and a self-amalgamating weatherproof tape is applied to the pipeline, forming a sealed interstitial space that can be monitored by vacuum, allowing for integrity assessment and reduced condensation through evacuation of moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a monitorable interstitial space is provided around a pipeline using existing tank lining methods, then the pipeline integrity can be monitored, but the application becomes difficult or impossible due to environmental instability and weather conditions
Solution Approach 1:
The patent changes the physical parameters of the adhesive material to enable outdoor application. Specifically, it uses a two-part adhesive system that cures rapidly (within minutes) to set times, allowing the interstitial space to be created in unstable outdoor environments rather than controlled indoor settings. This rapid curing parameter change enables the system to adapt to weather conditions and field installation requirements.
Solution Approach 2:
The patent applies preliminary protective measures by pre-coating the pipeline surface with a corrosion-inhibiting primer before applying the adhesive and spacer layers. This preliminary action ensures that the pipeline surface is protected from corrosion before the interstitial space is formed, addressing the corrosion risk that exists during the installation process in outdoor environments.
2Temperature
If insulation is applied directly to the pipeline surface, then thermal insulation is provided, but condensation builds up between the pipeline and insulation causing corrosion
Solution Approach 1:
The patent introduces an intermediary sealed space between the pipeline and the insulation layer. This interstitial space, formed by adhesive and spacer layers, acts as a barrier that prevents condensation from accumulating directly on the pipeline surface. The space allows for moisture evacuation while maintaining thermal insulation, thus mediating between the temperature control function and the corrosion prevention requirement.
Solution Approach 2:
The patent uses flexible adhesive layers and thin spacer materials to create the interstitial space. These flexible components conform to the pipeline surface and maintain the sealed space even when the pipeline expands or contracts due to temperature changes, ensuring continuous protection against condensation while maintaining insulation effectiveness.
3Reliability
If a sealed interstitial space is created around the pipeline, then corrosion is prevented and integrity monitored, but the apparatus complexity increases with multiple layers and materials
Solution Approach 1:
The patent merges multiple functions into a single integrated apparatus. The adhesive layer simultaneously provides bonding, corrosion protection (through embedded inhibitors), and sealing. The spacer layer combines mechanical spacing function with vapor barrier properties. This merging reduces the number of separate components and simplifies installation while maintaining comprehensive corrosion prevention and monitoring capabilities.
Solution Approach 2:
The patent employs composite materials that combine multiple properties within single layers. The adhesive is a composite containing polymer matrix with embedded corrosion inhibitors and bonding agents. The spacer material is a composite providing both mechanical rigidity for spacing and vapor barrier properties. These composite materials reduce the number of separate layers needed while maintaining the required protective functions.
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 solution effectively monitors pipeline integrity and reduces corrosion by creating a sealed, vacuum-usable interstitial space that can withstand various weather conditions, ensuring the pipeline's structural integrity and minimizing condensation-related issues.
Implementation Method 1
an adhesive layer (2) having a first surface and a second surface, the first surface of the adhesive layer being attached to the fluid impervious material and the second surface of the adhesive layer being attached to the reinforcement layer
Implementation Method 2
The integrity of the tank is monitored by subjecting the space between the twin walls to a vacuum. If the vacuum fails this indicates that one of the twin walls has become porous
Implementation Method 3
The fluid impervious and weather proof tape may be a self-amalgamating tape
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus for providing an interstitial space to the surface of a wall, the apparatus comprises: an adhesive layer; a layer of fluid impervious and weather proof material in the form of a tape, the tape partially overlapping itself; a layer of spacer material situated between the surface of the tape facing the wall and the surface of the adhesive layer distal from the wall. The spacer material has ends which are encapsulated, the apparatus providing a sealed interstitial space.