A DISTRIBUTED LOW ENERGY DYNAMIC THERMAL MANAGEMENT SYSTEM FOR SOLID MATTER PREVENTION AND CONTROL IN OIL AND GAS TRANSPORTATION PIPELINE

Abstract

A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline includes pipeline data monitoring terminal, current and electric pulse control terminal, land console, electric heating terminal, wiring flange, oil and gas transportation pipeline, valve structure. The system monitors the state of the pipeline in real time by the pipeline data monitoring terminal, and transmits the monitoring data to the current and electric pulse control terminal in real time, the current and electric pulse control terminal produces different thermal responses to the electric heating terminal according to the state in the tube, raises the temperature inside the tube by generating a continuous current, unblocks pipeline by generating high power electric pulse, so as to realize real-time monitoring and local temperature dynamic control of oil and gas transportation pipeline.

Claims

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 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: pipeline data monitoring terminal, current and electric pulse control terminal, land console, electric heating terminal, wiring flange, oil and gas transportation pipeline, 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 the inner wall of the oil and gas transportation pipeline, add a wiring flange on valve structure and install bolts in wiring flange, the current and electric pulse control terminal is connected to the 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: temperature sensing module, solid matter monitoring module and pipeline leakage monitoring module, which are used to monitor internal temperature state, solid matter generation state and pipeline leakage state 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, current and electric pulse control terminal transmits data to land console in real time; the current and electric pulse control terminal can be set to automatic working mode and manual control mode: automatic working mode means that 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 artificial control mode refers to that the staff 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 current heating or electric pulse heating, in which current heating is used to increase the temperature in the pipe and realize the prevention function of solid matter generation in the pipe, electric pulse heating is used to realize the unblocking function of 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 insulating layer and electrothermal layer, the insulating layer is set between inner wall of pipeline and electric heating layer, heat is generated when the electric heating terminal receives current or pulse from the electric pulse control terminal, the heat passes through the electric heating layer to heat the fluid or solid matter in the pipe; the electric heating 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.

2. A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline according to claim 1, wherein the valve structure means a three-way valve or similar structure, two of the accesses are used for pipeline connections, one access is connected to the additional wiring flange, and the connection of the internal and external structure of pipeline in management system is realized at the wiring flange.

3. A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline according to claim 1, wherein the current and electric pulse control terminal has remote communication function with the land console, and the communication function comprises: real-time data monitoring and view function, current and electric pulse parameters control function.

4. A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline according to claim 1, wherein the insulating layer and electrothermal layer can be arranged in any position that needs to be unblocked in the oil and gas transportation pipeline.

5. A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline according to claim 1, wherein the connecting wire is embedded in the bolts in advance during the actual construction process and connected with bolts by sealing process.

6. A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline according to claim 1, wherein the current and electric pulse control terminal and the pipeline data monitoring terminal are sealed and waterproof; each connection of the connecting wire shall be sealed and waterproof; the joints of bolts and wiring flange shall be sealed and waterproof.

Description

DESCRIPTION OF FIGURES

[0041] FIG. 1 is a structure diagram of the present embodiment.

[0042] FIG. 2 is a schematic diagram of the principle of the present embodiment.

[0043] FIG. 3 is a structure diagram of the electric heating terminal inside the pipeline wall.

[0044] In the figures: 1 represents the pipeline data monitoring terminal; 2 represents the current and electric pulse control terminal; 3 represents the electric heating terminal; 4 represents the wiring flange; 5 represents the oil and gas transportation pipeline; 6 represents the solid matter; 7 represents the valve structure. [0045] 11 represents the temperature sensing module; 12 represents the solid matter monitoring module; 13 represents the pipeline leakage monitoring module; 21 represents the connecting wire; 22 represents the land console; 31 represents the insulating layer; 32 represents the electrothermal layer; 41 represents the bolts; 61 represents the bottom of solid adhesive.

MODE OF CARRYING OUT THE INVENTION

[0046] In order to make the purpose of the present invention, the technical scheme and its advantages clearer, the present invention is further explained and illustrated below in conjunction with the accompanying drawings and embodiment. The specific embodiment described here is used only to explain the present invention and is not meant to limit it.

[0047] Disclosed is a distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline, as shown in FIG. 1. The management system includes the pipeline data monitoring terminal 1, the current and electric pulse control terminal 2, the land console 22, electric heating terminal 3, wiring flange 4, oil and gas transportation pipeline 5, valve structure 7. The pipeline data monitoring terminal 1 is arranged on the outside of the oil and gas transportation pipeline 5, the current and electric pulse control terminal 2 is arranged on the outside of the oil and gas transportation pipeline 5, the electrothermal terminal 3 is arranged on the inner wall of the oil and gas transportation pipeline 5, and the current and electric pulse control terminal 2 is connected to the electrothermal terminal 3 in the pipeline by an additional wiring flange 4 at the valve structure 7. The management system can rely on the valve structure 7 for distributed arrangement as needed to implement distributed management of the pipeline, and the electrothermal terminal 3 is arranged on the inner wall of the pipeline, allowing to direct heat the fluid in pipeline and reducing unnecessary heat loss.

[0048] As shown in FIG. 2, the pipeline data monitoring terminal 1 includes temperature sensing module 11, solid matter monitoring module 12, and pipeline leakage monitoring module 13; the temperature sensing module 11 can use a thermocouple to measure the temperature. The solid matter monitoring module 12 can be arranged on the outer wall of the pipeline by using ultrasonic monitoring device to realize its monitoring function. The pipeline leakage monitoring module 13 can use optical fiber sensing technology to realize its monitoring function. When the pipeline data monitoring terminal 1 monitors the status inside the pipeline, it can transmit the data to the current and electric pulse control terminal 2 in real time, and the current and electric pulse control terminal 2 can also transmit the data to the land console 22 in real time, and the automatic working mode can be set in the current and electric pulse control terminal 2. The manual control operation can also be performed by land console 22. According to the data feedback from the pipeline data monitoring terminal 1, the status of the pipeline can be judged, the current and electric pulse control terminal 2 can issue continuous current or electric pulse with different parameters to the electric heating terminal 3 for temperature adjustment or unblock operation of the pipeline status. Whether in automatic working mode or manual control mode, the land console 22 can receive data in real time and monitor the status inside the pipeline. The land console 22 and the current and electric pulse terminal 2 can transmit data in various ways, including wireless transmission, wired transmission. The wired transmission method can be used to transmit data by arranging data transmission lines along the pipeline.

[0049] As shown in FIG. 3, insulation paint is selected to cover the inner wall of oil and gas transportation pipeline 5 for insulating layer 31, and indium tin oxide of 0.3 micron thickness is selected to be coated on the surface of electrothermal layer 32, which can greatly reduce heat loss when heating the fluid in the pipe.

[0050] As shown in FIG. 3, the wiring flange 4 is flanged to the valve structure 7, and the bolts 41 are set on the wiring flange 4 to seal the connection, and the current and electric pulse control terminal 2 is connected to the electrothermal layer 32 in the pipeline by the connecting wire 21. The connecting wire 21 is embedded in bolts 41 in advance in the actual construction process, which is connected with bolts 41 by sealing process to reduce the construction difficulty. Sealing waterproof treatment should be considered at the connection between bolts 41 and wiring flange 4.

[0051] As shown in FIG. 3, when the electric pulse is used to unblock the pipe, the electric pulse is transmitted through the connecting wire 21 to the electrothermal layer 32, which transiently heats the solid matter 6, and the bottom of solid adhesive 61 melt, causing the solid matter 6 to fall off into the pipeline, reducing the attachment of solid matter to the pipeline wall, thus reducing the accumulation of solid matter, with low energy consumption, fast time, and high unblock efficiency.

[0052] The working process of the present embodiment is as follow:

[0053] {circle around (1)}Set up automatic working mode for the current and electrical pulse control terminal 2, set up automatic judgement mechanism for internal state of the tube, or use manual control mode at the land console 22.

[0054] {circumflex over (2)} The pipeline data monitoring terminal 1 provides real-time feedback of the real-time monitoring data to the current and electrical pulse control terminal 2.

[0055] {circle around (3)}The current and electric pulse control terminal 2 receives the feedback data in real time, and transmits the data to the land console 22 in real time. According to automatic working mode or manual control mode, the electric pulse or continuous current is sent to the electric heating terminal 3 in the pipeline.

[0056] {circle around (4)}In automatic working mode or manual control mode, judgment is made based on the actual inhibitor addition in the pipeline and the temperature data in the pipeline monitored by the temperature sensing module 11 in the oil and gas transportation pipeline 5, when the pipeline state is more likely to generate solid matter 6, the signal of the pipeline data monitoring terminal 1 is fed back to the current and the electric pulse control terminal 2, and the current and the electric pulse control terminal 2 generates continuous current. The fluid in the oil and gas transportation pipeline 5 is heated by the electrothermal layer 32 to realize the prevention function of solid matter 6.

[0057] {circle around (5)} When the solid matter monitoring module 12 detects the formation of a small amount of solid matter 6 in the pipeline, the current and electric pulse control terminal 2 may generate a continuous current to heat the fluid in the pipeline on the electrothermal layer 32, promoting the decomposition of the solid matter 6.

[0058] {circle around (6)} When the solid matter monitoring module 12 detects that the solid matter 6 is attached to the inner wall of the pipeline, the current and electric pulse control terminal 2 can generate high power electric pulse to heat the solid matter 6 attached to the pipe wall with instantaneous impact on the electrothermal layer 32, so that the bottom of solid adhesive 61 melt and fall off from the pipeline wall to avoid mass accumulation of solid matter 6 and blockage of pipeline.

[0059] {circle around (7)} When the pipeline leakage monitoring module 13 detects the pipeline leakage information, it feeds the signal to the current and electric pulse control terminal 2, and the current and electric pulse control terminal 2 transmits the signal to the land console 22 to remind the staff to carry out maintenance treatment and turn off its own working mode to prevent the loss of current leakage.

[0060] The above embodiment only express the mode of implementation of the present invention, but it should not be understood as a limitation of the scope of the present invention patent, and it should be pointed out that for technicians in this field, some deformations and improvements can be made without breaking away from the concept of the invention, which are all within the scope of the protection of the invention.