Pipeline Hydrate Detection and Microwave Ablation Through Bends
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Solution Overview
Problem
Natural gas hydrates in pipelines can cause blockages due to their formation in low-temperature and high-pressure submarine environments, leading to pipeline blockages and safety issues, and existing inhibitor methods are limited in effectiveness and can cause damage to the pipeline.
Innovation Solution
A device and method for detecting and ablating hydrates in natural gas pipelines, featuring a transmission mechanism with universal wheel components for static friction, a detection mechanism with temperature detectors, and an ablation mechanism with microwave heaters to heat and remove hydrates, reducing the need for chemical inhibitors and minimizing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical inhibitors (methanol, ethylene glycol) are injected to prevent hydrate formation, then hydrate blockage is inhibited, but pipeline safety is compromised due to potential damage from improper removal methods
Solution Approach 1:
The patent replaces chemical inhibitor injection with a mechanical/physical detection and ablation system. The detection mechanism uses temperature sensors to monitor for hydrate formation, and the ablation mechanism uses heating elements to remove hydrates physically, eliminating the need for chemical inhibitors and their associated safety risks.
Solution Approach 2:
The system enables self-detection and self-treatment of hydrate blockages. The detection mechanism continuously monitors pipeline conditions, and when hydrates are detected, the ablation mechanism automatically activates to remove them, creating a closed-loop system that doesn't require external chemical intervention.
2Reliability
If chemical inhibitors are used to prevent hydrates, then blockage is avoided, but environmental pollution increases due to chemical substance introduction
Solution Approach 1:
The invention substitutes chemical methods with physical methods. Instead of introducing chemical inhibitors into the environment, the system uses temperature detection and thermal ablation to prevent and remove hydrates, eliminating chemical pollution while maintaining blockage prevention effectiveness.
3Object-generated harmful factors
If a detection and ablation system is implemented, then chemical inhibitors are eliminated, but device complexity increases due to multiple mechanisms and components
Solution Approach 1:
The patent combines the detection mechanism and ablation mechanism into an integrated system. The detection frame and ablation frame are both connected to the same transmission mechanism, allowing a single device to perform both monitoring and treatment functions, thereby reducing the need for separate chemical injection systems.
Solution Approach 2:
The transmission mechanism serves multiple functions: it transports the detection mechanism along the pipeline, positions the ablation mechanism at detected hydrate locations, and enables both detection and treatment operations through a single integrated system, reducing overall complexity despite the multi-functional capability.
4Adaptability or versatility
If universal wheel components are used for transmission, then the device can navigate bends and adapt to different pipeline sizes, but friction losses increase due to static friction contact
Solution Approach 1:
The universal wheel components are designed to dynamically adapt to pipeline conditions. The transmission mechanism can adjust its contact pressure and friction characteristics based on pipeline bends and size variations, optimizing the balance between navigation capability and energy loss by allowing the system to respond dynamically rather than maintaining fixed friction characteristics.
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 detects and removes hydrates without chemical inhibitors, ensuring pipeline safety and reducing environmental pollution by adapting to different pipeline sizes and navigating bends, thus preventing blockages and ensuring smooth operation.
Implementation Method 1
a plurality of universal wheel components that generate static friction with an outer wall of the inner natural gas pipeline
Implementation Method 2
an ablation mechanism with microwave heaters to heat and remove hydrates
Implementation Method 3
an ablation mechanism configured to ablate the hydrates
Data Source
AI summary
The present application discloses a device and method for detecting and ablating hydrates in a natural gas pipeline. The device includes a transmission mechanism, a detection mechanism and an ablation mechanism. The detection mechanism and the ablation mechanism are both connected to the transmission mechanism through an elastic connector, such that the device can smoothly pass through bends in the natural gas pipeline. The transmission mechanism includes a universal wheel component, which forms static friction with an outer wall of an inner natural gas pipeline, such that the device can move along the inner natural gas pipeline. The detection mechanism detects the temperature of the natural gas pipeline and determines whether hydrates are generated in the natural gas pipeline to block the pipeline, and then the blockage is heated by the ablation mechanism to ablate the hydrates.