Graphene Heating Sleeve for Energy-Efficient Oil Gathering Pipelines
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Solution Overview
Problem
Existing heating methods for oilfield petroleum gathering pipelines, such as high-frequency induction heating and fossil fuel combustion, suffer from low efficiency and high energy waste, leading to increased production costs and complex solutions.
Innovation Solution
A graphene-heating and heat-preserving sleeve is developed, featuring a high-temperature-resistant insulating layer, graphene layer, electrode layers, ceramic layer, and waterproof anti-static heat preservation layer, which generates far infrared radiation for efficient heating and heat retention when an electric field is applied, reducing energy consumption and facilitating assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high-frequency induction heating equipment is used to heat the pipeline, then the pipeline can be heated effectively, but energy waste is very high and production cost increases
Solution Approach 1:
The patent replaces traditional electromagnetic induction heating with a carbon fiber resistive heating system. The carbon fiber heating wire generates heat through electrical resistance when current passes through it, directly heating the pipeline without the energy losses associated with induction heating. This substitution of heating mechanism resolves the contradiction by achieving effective pipeline heating while dramatically reducing energy waste.
Solution Approach 2:
The patent changes the heating parameter from electromagnetic induction to resistive heating through carbon fiber. By selecting carbon fiber material with specific resistive properties and controlling the current parameters, the system achieves efficient heat generation with minimal energy loss, thereby resolving the contradiction between heating effectiveness and energy waste.
2Temperature
If resistance heating principle is used for heating, then heating can be achieved, but heating efficiency is low and energy waste is high
Solution Approach 1:
The patent uses a composite structure consisting of carbon fiber heating wire embedded in insulation material, wrapped around the pipeline. The carbon fiber provides efficient resistive heating with high electrical resistance and good thermal conductivity, while the insulation layer prevents heat loss. This composite material approach achieves both effective heating and high heating efficiency, resolving the contradiction between heating capability and heating efficiency.
3Temperature
If fossil fuel combustion is used for heating, then heat energy can be provided, but the solution becomes complex and heating efficiency is low
Solution Approach 1:
The patent replaces complex fossil fuel combustion systems with a simple electrical heating system using carbon fiber. The electrical heating system eliminates the need for fuel storage, combustion chambers, exhaust systems, and other complex components associated with fossil fuel combustion. This substitution provides heat energy while dramatically simplifying the system, resolving the contradiction between heat energy provision and solution complexity.
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 graphene sleeve achieves over 99% effective electric heat energy conversion, providing balanced heating and reducing energy waste, maintenance costs, and enabling efficient heating and preservation of oilfield petroleum gathering pipelines.
Implementation Method 1
heat energy generated due to intense friction and collision between carbon atoms in the graphene is radiated out in a plane manner through far infrared rays with a wavelength of 5 to 14 microns
Implementation Method 2
heat energy generated due to intense friction and collision between carbon atoms in the graphene
Implementation Method 3
a high-temperature-resistant insulating layer close to an outer wall of the oilfield petroleum gathering pipeline, a high-temperature-resistant ceramic layer, and a waterproof and anti-static heat preservation layer
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A graphene-heating and heat preserving sleeve for a oilfield petroleum gathering pipeline includes a the high-temperature-resistant insulating layer (1), a graphene layer (2), a high-temperature-resistant ceramic layer (4), a waterproof and anti-static heat preservation layer (5), and a housing (6) that are tightly attached together in sequence; the two semi-cylindrical parts of the graphene-heating and heat-preserving sleeve are coupled together, so that the petroleum gathering pipeline is wrapped in the graphene-heating and heat-preserving sleeve. When electricity is applied to the electrode layers arranged at two ends of the graphene layer (2), under the action of an electric field, heat energy generated due to intense friction and collision between carbon atoms in the graphene is radiated out through far infrared rays with a wavelength of 5 to 14 microns, which effectively provides heat for heating and heat preservation of the oilfield petroleum gathering pipeline. The oilfield petroleum gathering pipeline heating and heat preservation graphene sleeve has the main characteristics that a heating manner using a non-resistant heating principle is used, which effectively meets the requirements of heating and heat preservation of the oilfield petroleum gathering pipeline, reduces the energy consumption, facilitates assembling and disassembling, and is low in maintenance cost.