Automatic control conveying device of long-distance oil and gas conveying pipe network

Abstract

An automatic control conveying device for a long-distance oil and gas conveying pipe network relates to the technical field of oil and gas pipeline conveying and comprises a foundation, an underground oil and gas gathering and conveying assembly is embedded in the foundation, and a ground oil and gas processing assembly is arranged on the foundation. The underground oil and gas gathering and transporting assembly comprises a plurality of sections of main gas conveying pipes extending transversely, every two adjacent sections of main gas conveying pipes are connected and fixed through a three-way pipe, and each main gas conveying pipe is fixedly connected with a vertical transfer conveying pipe. The ground oil-gas treatment assembly is arranged between every two adjacent transfer conveying pipes and comprises an oil-gas purification mechanism, a flow metering mechanism and a split-flow output mechanism. The problems that in the process of long-distance conveying and terminal distribution of a long oil gas conveying pipe network in the prior art, pipeline maintenance is inconvenient, conveying scheduling cannot be conducted on oil gas according to actual needs, and terminal oil gas treatment is inconvenient are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas pipeline transportation, and particularly to an automatic control transportation device for long-distance oil and gas pipeline networks. Background Art

[0002] As the core infrastructure of the energy supply chain, the long-distance oil and gas pipeline network transportation system is a complex systems engineering integrating various technologies and management elements. This system mainly consists of six core modules: the main pipeline network, station facilities, auxiliary systems, supporting infrastructure, storage and transportation facilities, and an intelligent management and maintenance system, and undertakes the important function of safely and efficiently transporting oil and gas energy from the production end (including oil fields, gas fields, refineries, and receiving stations) to the consumption end (such as urban agglomerations, industrial parks, and end-users). As the "main artery" of the energy supply chain, the design and construction of long-distance oil and gas pipeline networks need to comprehensively consider multiple factors such as geological conditions, climate environment, economic benefits, and safety standards, and promote the system to upgrade towards low-carbon and intelligent directions through continuous technological innovation.

[0003] However, several technical bottlenecks and operational challenges that need to be urgently solved have emerged during the operation of the existing long-distance oil and gas pipeline network system, and the existence of these problems has severely restricted the overall performance of the system. Specifically, there are the following four prominent problems: 1. Problems of pipeline aging and maintenance: The pipeline network system generally faces problems such as pipeline material aging and corrosion. Coupled with the low efficiency of traditional maintenance methods, potential safety hazards exist in the system; 2. Limited transportation capacity: The existing pipeline network's transportation capacity has been difficult to meet the growing energy demand, restricting the improvement of energy transportation efficiency; 3. Insufficient dispatching flexibility: The system lacks an intelligent dispatching mechanism and is difficult to quickly respond to market supply and demand changes, affecting the stability of energy supply; 4. High operating costs: The traditional maintenance and management mode results in high operating costs, affecting the economic benefits of the system.

[0004] It is particularly worth noting that at the transportation terminal link, oil and gas resources need to be refined through a gas distribution station before being supplied to the consumer market. This process involves key technological links such as pressure regulation, metering, pressurization, and cooling. However, due to insufficient automation in the existing long-distance oil and gas pipeline network system, it is difficult to achieve precise control of these technological links, resulting in difficulty in ensuring the stability of the terminal oil and gas quality. This not only affects energy utilization efficiency but also increases operating costs and safety risks. Therefore, promoting the intelligent upgrade of the long-distance oil and gas pipeline network system and realizing the automatic control of key technological links have become an urgent need to improve the overall performance of the system.

[0005] In summary, it is obvious that there are inconveniences and defects in the actual use of the existing technology, so it is necessary to improve it. Summary of the Invention

[0006] In view of the defects in the prior art, the present invention provides an automatic control and transportation device for long-distance oil and gas pipelines, which is used to solve the problems in the prior art that in the process of long-distance transportation and terminal distribution of long oil pipelines, it is inconvenient to repair pipelines, it is impossible to transport and dispatch oil and gas according to actual needs, and it is inconvenient to process oil and gas at the terminal, etc.

[0007] To achieve the above object, the present invention provides the following technical solutions: The automatic control and transportation device for long-distance oil and gas pipelines includes a foundation, in which an underground oil and gas gathering and transportation component is buried, and a ground oil and gas processing component is arranged on the foundation.

[0008] As an optimized solution, the underground oil and gas gathering and transportation component includes multiple main gas pipelines extending horizontally. Adjacent two main gas pipelines are connected and fixed through a tee pipe, and a vertical transfer pipeline is fixedly connected to each main gas pipeline.

[0009] As an optimized solution, the ground oil and gas processing component is arranged between two adjacent transfer pipelines. The ground oil and gas processing component includes an oil and gas purification mechanism, a flow measurement mechanism, and a shunt output mechanism.

[0010] As an optimized solution, the flow measurement mechanism includes a measurement cylinder, which is arranged directly above one of the transfer pipelines. A first intake pipe connected and docked with the transfer pipeline is fixedly connected to the lower end of the measurement cylinder.

[0011] As an optimized solution, a first transfer pipe is externally connected to the upper end of the measurement cylinder. A first regulating valve is arranged in the middle section of the first transfer pipe. An exhaust pipe is externally connected to the side wall of the measurement cylinder. An exhaust check valve is arranged in the exhaust pipe. The end of the exhaust pipe is fixedly connected to a return elbow pipe, and the end of the return elbow pipe is fixedly connected to the upper end of another transfer pipeline.

[0012] As an optimized solution, an intake check valve is arranged on the first intake pipe, and a return check valve is arranged on the return elbow pipe.

[0013] As an optimized solution, the oil and gas purification mechanism includes a separation tank. A horizontal second intake pipe is fixedly connected to the outer side wall of the separation tank. The end of the first transfer pipe is fixedly connected to the second intake pipe.

[0014] As an optimized solution, two annular fixing plates that are symmetrically arranged up and down are fixedly installed on the inner peripheral wall of the separation tank. An annular coarse filter outer net and a fine filter inner membrane are respectively fixed between the two annular fixing plates.

[0015] As an optimized solution, the upper end of the three-way pipe is closed and extends above the foundation. A stop-and-pass ball valve is clamped inside the three-way pipe. A rotation driving motor is fixedly connected to the closed upper end surface of the three-way pipe. The end of the output shaft of the rotation driving motor extends into the three-way pipe and is fixedly connected to the upper end of the stop-and-pass ball valve.

[0016] As an optimized solution, an installation base is provided on one side of the upper surface of the foundation. The lower end of the installation base is grounded, and the measuring cylinder is fixedly installed on the installation base.

[0017] As an optimized solution, the measuring cylinder is a vertically arranged closed cylindrical barrel. A diversion sleeve is fixedly connected to the inner peripheral wall of the measuring cylinder near the lower end. A limit clamping seat is fixedly connected to the inner peripheral wall of the measuring cylinder near the outlet end. A connecting central shaft is rotatably arranged on the limit clamping seat. A ball bearing is rotatably sleeved on the connecting central shaft, and turbine blades are fixed on the outer peripheral wall of the ball bearing.

[0018] As an optimized solution, an electromagnetic counter is fixed on the outer peripheral wall of the measuring cylinder. The induction head of the electromagnetic counter extends into the measuring cylinder and is arranged opposite to the turbine blades.

[0019] As an optimized solution, several groups of support foot frames are fixedly connected to the outer peripheral wall of the separation tank near the lower end. The lower ends of the support foot frames are grounded.

[0020] As an optimized solution, a conical converging cover is fixedly connected to the upper surface of the upper annular fixing plate.

[0021] As an optimized solution, a circulating pressure regulating pump is fixedly connected to the outer peripheral wall of the separation tank. The upper end of the circulating pressure regulating pump is externally connected to a vertical pressure regulating extraction pipe. The end of the pressure regulating extraction pipe passes through the upper end surface of the separation tank and is fixedly connected to the converging cover. A circulating stop-and-pass valve is arranged in the pressure regulating extraction pipe.

[0022] As an optimized solution, an annular pressure regulating inlet pipe is externally connected to the side end of the circulating pressure regulating pump. Several horizontal connecting pipes are fixedly connected to the inner ring of the pressure regulating inlet pipe. The ends of the connecting pipes are fixedly connected and communicated with the separation tank.

[0023] As an optimized solution, a second transfer pipe is externally connected to the lower end of the separation tank. A second regulating valve is arranged in the middle section of the second transfer pipe.

[0024] As an optimized solution, the flow splitting output mechanism includes a flow splitting box fixedly connected to the upper surface of the foundation. The flow splitting box is a vertically arranged square box. A gas flow channel is opened inside the flow splitting box. The gas flow channel includes a mutually connected horizontal main channel and three longitudinal branch channels.

[0025] As an optimized solution, a three-way reversing valve is fixedly connected to the end of the second transfer pipe. The side port of the three-way reversing valve is externally connected to an intake horizontal pipe, and the upper port of the three-way reversing valve is externally connected to an intake vertical pipe. The end of the intake horizontal pipe is fixedly connected and communicated to the shunt box, and the end of the intake vertical pipe is fixedly connected and communicated to the return elbow.

[0026] As an optimized solution, three gas storage tanks are fixedly connected to the longitudinal side wall of the shunt box. A pipe joint is fixedly connected to the back of each gas storage tank, and the pipe joint is fixedly connected to the side wall of the shunt box and communicated with the gas flow channel.

[0027] As an optimized solution, a longitudinally extending shunt branch pipe is externally connected to the lower end of each gas storage tank, and a throttle valve is provided on each shunt branch pipe.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: In view of the technical defects of the existing long-distance oil and gas pipeline network system, the present invention innovatively designs an integrated oil and gas transportation and processing system. The system consists of two parts: an underground oil and gas gathering and transportation component and a ground oil and gas processing component. Through the collaborative work of the two, functions such as long-distance continuous transportation, accurate metering, purification treatment, and quantitative distribution of oil and gas are realized.

[0029] The underground oil and gas gathering and transportation component set in the present invention adopts a modular design concept and is connected by multiple main gas transmission pipes through three-way pipes. The innovatively designed stop and through ball valve system can flexibly switch the transportation path, enabling oil and gas to flow to the ground treatment system or continue to be transported according to requirements, greatly improving the transportation flexibility of the system.

[0030] The present invention integrates three functional modules of flow metering, oil and gas purification, and shunt output to form a complete processing system. Among them, the flow metering mechanism adopts turbine-electromagnetic counting technology to accurately calculate the flow rate and velocity of oil and gas by measuring the rotation speed of the turbine blades, providing real-time data support for the operation of the system. The oil and gas purification mechanism adopts a double-layer filtration design, including a coarse filter outer net and a fine filter inner membrane, and cooperates with a circulating pressure regulating pump system to achieve deep purification and pressure regulation of oil and gas. The shunt output mechanism realizes the accurate distribution and storage of oil and gas through an innovative gas flow channel design and a gas storage tank system.

[0031] The innovations of the present invention are mainly reflected in aspects such as modular design, automated control, efficient purification, precise distribution, and system integration. Specifically, through the segmented main gas pipeline and the adjustable three-way pipe system, the flexibility and maintainability of the system are improved; the electromagnetic counting technology and the programmable control system are adopted to achieve real-time monitoring and precise control of the flow rate and velocity; the double-layer filtration system combined with the pressure regulation function ensures the purity and stability of the oil and gas; the innovative flow splitting output mechanism realizes the quantitative distribution of the oil and gas, improving the resource utilization efficiency; integrating the functions of transportation, metering, purification, and distribution in one system greatly improves the overall efficiency.

[0032] The technical advantages of the present invention are as follows: It improves the safety and reliability of oil and gas transportation, realizes real-time monitoring and intelligent regulation during the transportation process, reduces the maintenance cost and operation risk, improves the quality and efficiency of oil and gas processing, and provides a new technical solution for the intelligent upgrade of long-distance oil and gas pipeline networks.

[0033] Through the implementation of the present invention, not only effectively solves the technical problems existing in the existing long-distance oil and gas pipeline network system, but also provides a new technical path for the intelligent and efficient development of the oil and gas transportation system, with significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0035] Figure 1 It is a schematic internal structure sectional view of the underground oil and gas gathering and transportation component and the ground oil and gas processing component of the present invention in the front view direction; Figure 2 It is a schematic internal structure sectional view of the ground oil and gas processing component of the present invention in the top view direction; Figure 3 It is a schematic internal structure sectional view of each component of the present invention in the left side view direction; Figure 4 It is a schematic external overall structure view of the present invention in the front view direction; Figure 5 It is a schematic external overall structure view of the present invention in the top view direction; Figure 6 It is a schematic external overall structure view of the present invention in the right side view direction.

[0036] In the figure: 1 - foundation, 2 - main gas transmission pipe, 3 - tee, 4 - stop - through ball valve, 5 - rotation drive motor, 6 - transfer conveying pipe, 7 - installation base, 8 - measuring cylinder, 9 - first intake pipe, 10 - intake stop - through valve, 11 - flow - guiding sleeve, 12 - limit clamping seat, 13 - connecting central axis, 14 - ball bearing, 15 - turbine blade, 16 - electromagnetic counter, 17 - first transfer pipe, 18 - first regulating valve, 19 - exhaust pipe, 20 - exhaust stop - through valve, 21 - return elbow, 22 - return stop - through valve, 23 - separation tank, 24 - support leg, 25 - second intake pipe, 26 - annular fixing plate, 27 - coarse filter outer net, 28 - fine filter inner membrane, 29 - confluence cover, 30 - circulating pressure regulating pump, 31 - pressure regulating extraction pipe, 32 - circulating stop - through valve, 33 - pressure regulating intake pipe, 34 - connecting pipe, 35 - second transfer pipe, 36 - second regulating valve, 37 - shunt box, 38 - three - way reversing valve, 39 - intake horizontal pipe, 40 - intake vertical pipe, 41 - gas flow path, 42 - gas storage tank, 43 - pipe joint, 44 - shunt branch pipe, 45 - throttle valve. Detailed implementation manners

[0037] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0038] As Figures 1 to 6 shown, the long - distance oil and gas pipeline network automatic control conveying device includes a foundation 1. An underground oil and gas gathering and transportation component is buried in the foundation 1, and a ground oil and gas treatment component is arranged on the foundation 1.

[0039] The underground oil and gas gathering and transportation component includes multiple sections of main gas transmission pipes 2 extending horizontally. Adjacent two sections of main gas transmission pipes 2 are connected and fixed through a tee 3.

[0040] The upper end of the tee 3 is closed and extends above the foundation 1. A stop - through ball valve 4 is clamped in the tee 3. A rotation drive motor 5 is fixedly connected to the closed upper end surface of the tee 3. The end of the output shaft of the rotation drive motor 5 extends into the tee 3 and is fixedly connected to the upper end of the stop - through ball valve 4.

[0041] A vertical transfer conveying pipe 6 is fixedly connected to each main gas transmission pipe 2. The ground oil and gas treatment component is arranged between two adjacent transfer conveying pipes 6.

[0042] The ground oil and gas treatment component includes an oil and gas purification mechanism, a flow measurement mechanism and a shunt output mechanism.

[0043] A mounting base 7 is provided on one side of the upper surface of the foundation 1, and the lower end of the mounting base 7 is grounded. The flow metering mechanism includes a metering cylinder 8, which is a vertically arranged closed cylindrical cylinder. The metering cylinder 8 is fixedly mounted on the mounting base 7 and is arranged directly opposite to one of the transfer delivery pipes 6. A first air inlet pipe 9 is fixedly connected to the lower end of the metering cylinder 8, and the lower end of the first air inlet pipe 9 is connected to the transfer delivery pipe 6 by docking. An air inlet check valve 10 is provided on the first air inlet pipe 9.

[0044] A guide sleeve 11 is fixedly connected to the inner circumferential wall of the metering cylinder 8 near the lower end, and a limit clamping seat 12 is fixedly connected to the inner circumferential wall of the metering cylinder 8 near the outlet end. A connecting central axis 13 is rotatably provided on the limit clamping seat 12, and a ball bearing 14 is rotatably sleeved on the connecting central axis 13. Turbine blades 15 are fixed to the outer circumferential wall of the ball bearing 14. The guide sleeve 11 allows oil and gas to enter along the tangential direction to drive the turbine blades 15 to rotate.

[0045] An electromagnetic counter 16 is fixed on the outer peripheral wall of the metering cylinder 8 . The induction head of the electromagnetic counter 16 extends into the metering cylinder 8 and is arranged opposite to the turbine blades 15 .

[0046] The upper end of the metering cylinder 8 is externally connected to a first transfer pipe 17, and a first regulating valve 18 is provided in the middle section of the first transfer pipe 17. An exhaust pipe 19 is externally connected to the side wall of the metering cylinder 8, and an exhaust check valve 20 is provided in the exhaust pipe 19. A reflux elbow 21 is fixedly connected to the end of the exhaust pipe 19, and the end of the reflux elbow 21 is fixedly connected to the upper end of another transfer conveying pipe 6.

[0047] A reflux check valve 22 is provided on the reflux elbow 21 .

[0048] The oil and gas purification mechanism includes a separation tank 23, which is a vertically arranged cylindrical tank that is closed at the top and bottom. A plurality of support legs 24 are fixedly connected to the outer peripheral wall of the separation tank 23 near the lower end, and the lower end of the support legs 24 is grounded.

[0049] A horizontal second air inlet pipe 25 is fixedly connected to the outer wall of the separation tank 23 , and the end of the first transfer pipe 17 is fixedly connected to the second air inlet pipe 25 .

[0050] Two annular fixing plates 26 symmetrical in upper and lower directions are fixedly mounted on the inner peripheral wall of the separation tank 23 , and an annular coarse filter outer net 27 and a fine filter inner membrane 28 are fixed between the two annular fixing plates 26 .

[0051] A conical collector cover 29 is fixedly connected to the upper surface of an annular fixing plate 26 located above.

[0052] A circulation pressure regulating pump 30 is fixedly connected to the outer wall of the separation tank 23. The upper end of the circulation pressure regulating pump 30 is externally connected to a vertical pressure regulating exhaust pipe 31. The end of the pressure regulating exhaust pipe 31 passes through the upper end surface of the separation tank 23 and is fixedly connected to the manifold 29. A circulation stop valve 32 is provided in the pressure regulating exhaust pipe 31.

[0053] An annular pressure regulating intake pipe 33 is externally connected to the side end of the circulating pressure regulating pump 30. A plurality of horizontal connecting pipes 34 are fixedly connected to the inner ring of the pressure regulating intake pipe 33, and the ends of the connecting pipes 34 are fixedly connected and communicated to the separation tank 23.

[0054] A second transfer pipe 35 is externally connected to the lower end of the separation tank 23, and a second regulating valve 36 is provided in the middle section of the second transfer pipe 35.

[0055] The flow splitting and output mechanism includes a flow splitting box 37. The flow splitting box 37 is a vertically arranged square box, and the lower end of the flow splitting box 37 is fixedly connected to the upper surface of the foundation 1.

[0056] The end of the second transfer pipe 35 is fixedly connected with a three-way reversing valve 38. The side port of the three-way reversing valve 38 is externally connected to an intake horizontal pipe 39, and the upper port of the three-way reversing valve 38 is externally connected to an intake vertical pipe 40. The end of the intake horizontal pipe 39 is fixedly connected and communicated to the flow splitting box 37, and the end of the intake vertical pipe 40 is fixedly connected and communicated to the return elbow 21.

[0057] A gas flow channel 41 is formed inside the flow splitting box 37. The gas flow channel 41 includes a mutually connected horizontal main channel and three longitudinal branch channels. Three gas storage tanks 42 are fixedly connected to the longitudinal side walls of the flow splitting box 37. A pipe joint 43 is fixedly connected to the back surface of each gas storage tank 42, and the pipe joint 43 is fixedly connected to the side wall of the flow splitting box 37 and is communicated with the gas flow channel 41.

[0058] A longitudinally extending flow splitting branch pipe 44 is externally connected to the lower end of each gas storage tank 42, and a throttle valve 45 is provided on each flow splitting branch pipe 44.

[0059] When the present invention is in use: First, start the rotation driving motor 5. The rotation driving motor 5 drives the on-off ball valve 4 to rotate 90°, thereby cutting off the middle between two adjacent main gas transmission pipes 2.

[0060] Open the intake on-off valve 10. The oil and gas enter the metering cylinder 8 through the intermediate transfer pipe 6 and the first intake pipe 9 for flow metering. The speed generated by the flow of the oil and gas provides a rotational torque for the turbine blades 15, causing them to rotate circumferentially. Open the electromagnetic counter 16 for electromagnetic counting and convert it into an electrical signal for output.

[0061] Open the first regulating valve 18. The oil and gas enter the separation tank 23 through the first transfer pipe 17 and the second intake pipe 25, and sequentially pass through the coarse filter outer net 27 and the fine filter inner membrane 28 to achieve multi-stage impurity separation.

[0062] During the separation process, start the circulating pressure regulating pump 30, and suck the oil and gas entering the center of the separation tank 23 into the circulating pressure regulating pump 30 through the confluence cover 29 and the pressure regulating extraction pipe 31. Then, it flows back to the separation tank 23 through the pressure regulating inlet pipe 33 and the connecting pipe 34, and multiple adsorption purifications are carried out by using the coarse filter outer net 27 and the fine filter inner membrane 28 while regulating the pressure.

[0063] After the purification treatment is completed, turn off the circulating pressure regulating pump 30 and open the second regulating valve 36. The oil and gas enter the second transfer pipe 35 and flow continuously along the second transfer pipe 35.

[0064] Open the three-way reversing valve 38, the oil and gas flow into the shunt box 37 through the intake horizontal pipe 39, and then flow into each gas storage tank 42 in sequence through the gas flow channel 41. Open the throttle valve 45 to output the oil and gas from each shunt branch pipe 44.

[0065] According to different actual situations, by switching each valve, the flow path of the oil and gas in the ground oil and gas treatment assembly can be changed, so as to achieve different treatment effects. Specifically: (1). After the flow measurement is completed, close the first regulating valve 18 and open the exhaust check valve 20, so that the oil and gas can flow into the return elbow 21; then open the return check valve 22, and the oil and gas flow back to the main gas transmission pipe 2 through another transfer conveying pipe 6 and continue to flow and be conveyed along the main gas transmission pipe 2.

[0066] (2). After the purification treatment is completed, by starting the three-way reversing valve 38, the oil and gas flow into the return elbow 21 along the intake vertical pipe 40, and then are transferred into the main gas transmission pipe 2 through the transfer conveying pipe 6, so that the oil and gas conveyed in the subsequent main gas transmission pipe 2 are all purified oil and gas.

[0067] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. Automatic control conveying device for long-distance oil and gas pipeline network, characterized by: It comprises a foundation, wherein an underground oil and gas gathering and transportation component is buried in the foundation, and a ground oil and gas processing component is arranged on the foundation; The underground oil and gas gathering and transportation assembly comprises a plurality of transversely extending main gas pipelines, two adjacent main gas pipelines are connected and fixed by a tee pipe, and each of the main gas pipelines is respectively fixedly connected with a vertical transfer pipe; The ground oil and gas processing assembly is arranged between two adjacent transfer pipes, and the ground oil and gas processing assembly includes an oil and gas purification mechanism, a flow metering mechanism and a flow diversion output mechanism; The flow metering mechanism comprises a metering cylinder, which is arranged just above one of the transfer delivery pipes, and the lower end of the metering cylinder is fixedly connected to a first air inlet pipe that is butt-connected to the transfer delivery pipe; The upper end of the metering cylinder is externally connected to a first transfer pipe, the middle section of the first transfer pipe is provided with a first regulating valve, the side wall of the metering cylinder is externally connected to an exhaust pipe, the exhaust pipe is provided with an exhaust check valve, the end of the exhaust pipe is fixedly connected to a reflux elbow, and the end of the reflux elbow is fixedly connected to the upper end of another transfer pipe; The first air intake pipe is provided with an air intake check valve, and the return elbow is provided with a return flow check valve; The oil and gas purification mechanism comprises a separation tank, a second horizontal air intake pipe is fixedly connected to the outer wall of the separation tank, and the end of the first transfer pipe is fixedly connected to the second air intake pipe; Two annular fixing plates symmetrical in upper and lower directions are fixedly mounted on the inner peripheral wall of the separation tank, and an annular coarse filter outer net and a fine filter inner membrane are respectively fixed between the two annular fixing plates.

2. The automatic control conveying device for long-distance oil and gas pipeline network according to claim 1 is characterized by: The upper end of the three-way pipe is closed and extends above the foundation. A stop ball valve is installed in the three-way pipe. A rotating drive motor is fixedly connected to the closed upper end surface of the three-way pipe. The output shaft end of the rotating drive motor extends into the three-way pipe and is fixedly connected to the upper end of the stop ball valve.

3. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 1 is characterized by: A mounting base is provided on one side of the upper surface of the foundation, the lower end of the mounting base is grounded, and the metering cylinder is fixedly mounted on the mounting base.

4. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 1 is characterized in that: The metering cylinder is a closed cylindrical cylinder arranged vertically, a guide sleeve is fixedly connected to the inner circumferential wall of the metering cylinder near the lower end, a limit clamping seat is fixedly connected to the inner circumferential wall of the metering cylinder near the outlet end, a connecting central shaft is rotatably provided on the limit clamping seat, a ball bearing is rotatably sleeved on the connecting central shaft, and a turbine blade is fixed to the outer circumferential wall of the ball bearing; An electromagnetic counter is fixed on the outer peripheral wall of the metering cylinder, and the induction head of the electromagnetic counter extends into the metering cylinder and is arranged opposite to the turbine blades.

5. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 1 is characterized by: A plurality of support legs are fixedly connected to the outer peripheral wall of the separation tank near the lower end, and the lower ends of the support legs are grounded.

6. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 1 is characterized by: A conical collector cover is fixedly connected to the upper surface of the annular fixing plate located above; A circulating pressure regulating pump is fixedly connected to the outer peripheral wall of the separation tank, the upper end of the circulating pressure regulating pump is externally connected to a vertical pressure regulating exhaust pipe, the end of the pressure regulating exhaust pipe passes through the upper end surface of the separation tank and is fixedly connected to the manifold, and a circulating stop valve is provided in the pressure regulating exhaust pipe; The side end of the circulating pressure regulating pump is externally connected with an annular pressure regulating air inlet pipe, the inner circle of the pressure regulating air inlet pipe is fixedly connected with a plurality of horizontal connecting pipes, and the ends of the connecting pipes are fixedly connected to the separation tank.

7. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 1 is characterized by: The lower end of the separation tank is externally connected with a second transfer pipe, and the middle section of the second transfer pipe is provided with a second regulating valve.

8. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 7 is characterized in that: The flow diversion output mechanism comprises a flow diversion box fixedly connected to the upper surface of the foundation, the flow diversion box is a vertically arranged square box, a gas flow channel is opened inside the flow diversion box, and the gas flow channel comprises a transverse main channel and three longitudinal branch channels that are interconnected; A three-way reversing valve is fixedly connected to the end of the second transfer pipe, a side port of the three-way reversing valve is externally connected to an intake cross pipe, an upper port of the three-way reversing valve is externally connected to an intake vertical pipe, an end of the intake cross pipe is fixedly connected to the diverter box, and an end of the intake vertical pipe is fixedly connected to the return bend pipe.

9. The automatic control transportation device for long-distance oil and gas pipeline network according to claim 8 is characterized in that: Three gas storage tanks are fixedly connected to the longitudinal side walls of the diverter box, and a pipe joint is fixedly connected to the back of each gas storage tank. The pipe joint is fixedly connected to the side wall of the diverter box and communicated with the gas flow channel; The lower end of each gas storage tank is externally connected with a longitudinally extending branch pipe, and each branch pipe is provided with a throttle valve.

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