| CPC F17D 1/18 (2013.01) [F16L 53/34 (2018.01); F17D 3/01 (2013.01); F17D 5/06 (2013.01)] | 5 Claims |
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1. A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline, wherein the distributed management of the oil and gas transportation pipeline is carried out by setting the management system in different positions of the pipeline, and the real-time monitoring and local dynamic control of pipeline internal state can be realized; the low energy dynamic thermal management system comprises: a pipeline data monitoring terminal, a current and electric pulse control terminal, a land console, an electric heating terminal, a wiring flange, an oil and gas transportation pipeline, and a valve structure;
the pipeline data monitoring terminal is arranged outside the oil and gas transportation pipeline, the current and electric pulse control terminal is arranged outside the oil and gas transportation pipeline, the electric heating terminal is arranged on an inner wall of the oil and gas transportation pipeline, add the wiring flange on the valve structure and install a plurality of bolts in the wiring flange, the current and electric pulse control terminal is connected to an electrothermal layer of the electric heating terminal in the pipeline by connecting wire, wherein the connecting wire passes through the wiring flange; the current and electric pulse control terminal is connected with the pipeline data monitoring terminal for data transmission; the management system relies on the valve structure for distributed layout;
the pipeline data monitoring terminal comprises: a temperature sensing module, a solid matter monitoring module and a pipeline leakage monitoring module, which are used to monitor the internal temperature, the generation of solid matter and pipeline leakage respectively, so as to carry out the distributed real-time monitoring of the internal state of the pipeline; the data that characterize the state of the pipe monitored by the pipeline data monitoring terminal can be transmitted to the current and electric pulse control terminal in real time, the current and electric pulse control terminal transmits the data to the land console in real time; the current and electric pulse control terminal operate in an automatic working mode and a manual control mode: the automatic working mode includes the current and electric pulse control terminal automatically judges the state of the pipe according to the data fed back from the pipeline data monitoring terminal, and automatically generates different thermal responses to the electric heating terminal; the manual control mode refers to that a staff member judges the state of the pipe by the land console, indicating that the current and electric pulse control terminal to generate thermal responses; the thermal responses mean a current heating or an electric pulse heating, in which current heating is used to increase the temperature in the pipe and realize a function for preventing solid matter generation in the pipe, and electric pulse heating is used to realize a function for unblocking solid matter in pipeline;
the electric heating terminal is arranged on the inner wall of the pipeline when preparing the oil and gas transportation pipeline, including an insulating layer and the electrothermal layer, the insulating layer is set between the inner wall of the pipeline and the electrothermal layer, heat is generated when the electric heating terminal receives current or pulse from the electric pulse control terminal, the heat passes through the electrothermal layer to heat the fluid or solid matter in the pipe; the electrothermal layer comprises various electrothermal films capable of generating heat when energized;
when solid matter monitoring module detects that the solid matter is attached to the inner wall of oil and gas transportation pipeline, the current and electric pulse control terminal generates high-power electric pulse; the solid matter attached to the wall is instantaneously heated on the electrothermal layer, so that the bottom of solid adhesive melt, fall off from the wall of the pipe, avoiding mass accumulation of solid matter and blockage of pipeline;
wherein the valve structure includes a three-way valve, two of the accesses are used for pipeline connections, one access is connected to the wiring flange, and the connection of the internal and external structure of the pipeline in the management system is realized at the wiring flange.
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