Automatic booster unit for mixed oil and gas transportation

Abstract

This utility model discloses an automatic booster device for oil and gas mixed transportation, including an inlet manifold and a gate valve for the inlet manifold. A first mixed transportation pump group and a second mixed transportation pump group are connected in parallel downstream of the inlet manifold. The first and second mixed transportation pump groups are connected to a common outlet manifold. Downstream of the outlet manifold, an electric heater and a gas-liquid flow meter are connected via pipelines. The first and second mixed transportation pump groups are also connected to a sewage manifold. The second mixed transportation pump group is connected to an emergency tank inlet pump manifold, which is connected to an emergency tank. This device effectively simplifies the equipment and facilities within the station, while significantly reducing station operating energy consumption and safety risks, playing a positive role in promoting the efficient and environmentally friendly development of oil and gas mixed transportation in oilfield surface engineering.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil and gas multiphase flow mixed transportation process, and relates to an automatic pressurization device for oil and gas mixed transportation. Background Technology

[0002] With the deepening of the national "dual-carbon" strategy, oil and gas field surface gathering and transportation systems are required to simultaneously meet the two rigid indicators of "energy conservation and emission reduction" and "unmanned operation". On the one hand, the traditional multi-level deployment and quality-separated transportation process of "metering station / transfer station - joint station" requires a large number of separators, buffer tanks, heaters, external pumps and other equipment, which has many drawbacks such as large land area, high energy consumption and large number of operation and maintenance personnel. For example, the equipment is redundant and the land area is large, with the construction land of a single station usually exceeding 1500m²; the energy consumption is high, with the annual comprehensive electrical energy consumption of heaters and external pumps equivalent to more than 40 tons of standard coal; on-site duty is required, and manual inspection, manual start and stop and fault response lead to high operation and maintenance costs; there are many multi-level transfer nodes, which can easily lead to safety hazards such as slug flow and hydrate blockage. Currently, oilfields are comprehensively promoting the construction of unmanned stations, requiring ground gathering and transportation systems to have "remote control, autonomy, and self-healing" capabilities. Therefore, how to achieve direct pressurization and external transportation of multiphase media such as oil, gas, and water with a single device while ensuring safe and continuous transportation has become a key technical bottleneck that the industry urgently needs to overcome. The industry urgently needs an unmanned oil and gas mixed transportation technology that can directly pressurize and externally transport multiphase media such as oil, gas, and water with a "single device, all operating conditions, and maintenance-free" approach to replace the existing multi-stage distribution process.

[0003] In existing technology, patent CN214306522U proposes a "multiphase flow conveying device." This device pre-dehydrates the crude oil produced through a water separator, and then drives two tanks to alternately suck in and discharge the oil-gas mixture through a reversing mechanism, thus simplifying the traditional process to some extent. However, this solution still requires a water separator (essentially a separation device), a dual-tank buffer structure, and a heating and valve control system. It fails to completely eliminate large-scale pressure vessels on the ground and does not solve the problems of slug flow impact, hydrate blockage, and cavitation under transient conditions of pure gas, pure liquid, and high gas-liquid ratio. In addition, conventional mixed-transfer pumps are prone to slug flow impact, hydrate blockage, and over-pump cavitation under transient conditions of pure liquid, pure gas, and high gas-liquid ratio due to the lack of real-time flow pattern identification and active suppression methods. This results in a continuous operating cycle of ≤2000h, which is difficult to meet the technical requirement of unattended operation ≥8000h maintenance-free operation.

[0004] In summary, existing technologies have not yet solved the systemic challenges of "extremely simple equipment, lowest energy consumption, open protocols, full-condition self-adaptation, and long-term maintenance-free operation," which has become a key technological bottleneck restricting the upgrading of oil and gas field surface engineering towards "less manned / unmanned, low-carbon and efficient" directions. Utility Model Content

[0005] The purpose of this invention is to provide an automatic booster device for oil and gas mixed transportation, which solves the problems of equipment redundancy, high energy consumption and lack of active suppression in the existing technology.

[0006] The technical solution adopted by this utility model is an automatic booster device for mixed oil and gas transportation, including an inlet manifold and an inlet gate valve. A first mixed transportation pump group and a second mixed transportation pump group are connected in parallel downstream of the inlet manifold. The first and second mixed transportation pump groups are connected to the outlet manifold of the mixed transportation pump group. Downstream of the outlet manifold of the mixed transportation pump group, an electric heater and a gas-liquid flow meter are connected through a pipeline. The first and second mixed transportation pump groups are also connected to a sewage manifold. The second mixed transportation pump group is connected to an emergency tank inlet oil pump manifold. An emergency tank is connected to the emergency tank inlet oil pump manifold.

[0007] The features of this utility model also include: The outlet manifold of the mixed-transfer pump unit is also connected to a pressure relief pipeline, and the end of the pressure relief pipeline is connected to an emergency tank. The pressure relief pipeline is equipped with the following valves in sequence from the outlet manifold of the mixed-transfer pump unit to the emergency tank: the inlet gate valve of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve, and the outlet gate valve of the main outlet pressure relief safety valve.

[0008] A main inlet pressure relief safety valve and a main inlet electric pressure relief gate valve are installed in parallel between the pressure relief pipeline and the inlet manifold. An inlet gate valve and an outlet gate valve of the main inlet pressure relief safety valve are respectively installed on both sides of the main inlet manifold in the direction of the pressure pipeline. A main outlet electric pressure relief gate valve is installed between the main inlet electric pressure relief gate valve and the outlet manifold of the mixed pump group. An oil pump bypass gate valve is connected in parallel to the main outlet electric pressure relief gate valve.

[0009] An electric valve for the emergency tank inlet pump manifold is installed on the emergency tank inlet pump manifold.

[0010] The electric heater is located downstream of the gas-liquid flow meter. The end of the heater is connected to the discharge main pipe. A first bypass pipe is connected between the outlet manifold of the mixed pump group and the discharge main pipe. A gas-liquid flow meter bypass gate valve and an electric heater bypass gate valve are installed on the first bypass pipe.

[0011] The gas-liquid flow meter is equipped with an inlet gate valve and an outlet gate valve on both sides, and the gas-liquid flow meter is connected in parallel with the bypass gate valve.

[0012] An electric heater inlet gate valve and an electric heater outlet gate valve are respectively installed on both sides of the electric heater. The electric heater and the electric heater bypass gate valve are connected in parallel. A second bypass pipeline is connected between the electric heater inlet gate valve and the gas-liquid flow meter outlet gate valve. The other end of the second bypass pipeline is connected to the first bypass pipeline.

[0013] The first mixed-transfer pump group includes, in sequence from the tap liquid inlet manifold to the mixed-transfer pump group outlet manifold, a first mixed-transfer pump group inlet electric valve, a first filter compensator, a first oil-gas mixed-transfer pump, a first mixed-transfer pump group outlet check valve, and a first mixed-transfer pump group outlet electric gate valve.

[0014] The first filter compensator is equipped with a first filter compensator drain valve, and a first pump group outlet drain valve is installed between the first oil-gas mixed pump and the first mixed pump group outlet check valve. The first filter compensator drain valve and the first pump group outlet drain valve are connected by a drain manifold.

[0015] The second mixed-transfer pump set includes a second mixed-transfer pump reflux electric valve and a second mixed-transfer pump set inlet electric valve arranged in parallel. A second mixed-transfer pump set reflux check valve is installed on the side of the second mixed-transfer pump set away from the inlet manifold. A second filter compensator and a second oil-gas mixed-transfer pump are sequentially installed on the side of the second mixed-transfer pump set away from the inlet manifold. A second filter compensator drain valve is installed on the second filter compensator. The second mixed-transfer pump set reflux check valve and the second oil-gas mixed-transfer pump are connected together to a second pump set outlet drain valve. The second filter compensator drain valve and the second pump set outlet drain valve are connected to a drain manifold.

[0016] The second mixed-transfer pump set also includes an electric gate valve for the outlet of the second mixed-transfer pump set and an electric gate valve for the outlet of the third mixed-transfer pump set, which are arranged sequentially from the inlet manifold of the tap liquid to the outlet manifold of the mixed-transfer pump set. The electric gate valve for the outlet of the second mixed-transfer pump set is also connected to the return check valve of the second mixed-transfer pump set and the second oil-gas mixed-transfer pump.

[0017] The beneficial effects of this utility model are: This utility model of an automatic booster device for mixed oil and gas transportation eliminates multiple stages of equipment such as separators, buffer tanks, heaters, and external pumps in metering stations and transfer stations, effectively simplifying the equipment and facilities within the station. The footprint of a single station is reduced by more than 60%. It can operate stably and reliably under various complex operating conditions, including pure gas, pure liquid, and mixed oil and gas transportation, achieving long-term stable operation. It eliminates the need for continuous operation of traditional heaters and high-power external pumps, and features automatic constant-pressure heating and dewaxing functions for ambient temperature transportation, ensuring smooth transportation processes. Furthermore, this device is seamlessly compatible with oilfield SCADA platform data. With remote control and autonomous intelligent operation functions, it truly meets the requirements for unattended station operation, greatly improving labor efficiency while significantly reducing station operating energy consumption and safety risks, and reducing pollution emissions. It plays a positive role in promoting the efficient and environmentally friendly development of mixed oil and gas transportation in oilfield surface engineering. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the automatic booster device for oil and gas mixed transportation of this utility model.

[0019] In the diagram: 1. Electric heater outlet gate valve; 2. Electric heater; 3. Electric heater inlet gate valve; 4. Gas-liquid flow meter outlet gate valve; 5. Gas-liquid flow meter; 6. Gas-liquid flow meter inlet gate valve; 7. Electric heater bypass gate valve; 8. Gas-liquid flow meter bypass gate valve; 9. Bypass pipeline; 10. Pressure relief pipeline; 11. Main outlet pipeline pressure relief safety valve outlet gate valve; 12. Main outlet pipeline pressure relief safety valve; 13. Main outlet pipeline pressure relief safety valve 14. Main inlet pipe pressure relief safety valve; 15. Main inlet pipe pressure relief safety valve outlet gate valve; 16. Main outlet pipe electric pressure relief gate valve; 17. Main inlet pipe pressure relief safety valve inlet gate valve; 18. Main inlet pipe electric pressure relief gate valve; 19. Oil pump bypass gate valve; 20. First mixed pump group outlet check valve; 21. First mixed pump group outlet electric gate valve; 22. Mixed pump group outlet manifold; 23. Inlet manifold; 24. Inlet gate valve for liquid inlet pipe; 25. Inlet electric valve for the first mixed-transfer pump group; 26. First filter compensator; 27. First oil-gas mixed-transfer pump; 28. Outlet drain gate valve for the first pump group; 29. ​​Drain gate valve for the first filter compensator; 30. Return electric valve for the second mixed-transfer pump; 31. Return check valve for the second mixed-transfer pump group; 32. Outlet electric gate valve for the second mixed-transfer pump group; 33. Outlet electric gate valve for the third mixed-transfer pump group; 34. ... 35. Electric valve at the inlet of the second mixed-transfer pump unit; 36. Second filter compensator; 37. Second oil-gas mixed-transfer pump; 38. Sewage gate valve at the outlet of the second pump unit; 39. Emergency tank inlet oil pump manifold; 40. Electric valve at the emergency tank inlet oil pump manifold; 41. Sewage gate valve of the second filter compensator; 42. Sewage manifold; 43. First mixed-transfer pump unit; 44. Second mixed-transfer pump unit; 45. Emergency tank; 46. Main discharge pipe; 47. Second bypass pipeline. Detailed Implementation

[0020] The subject matter of this utility model disclosure will now be described more fully with reference to exemplary embodiments. However, the disclosed concepts may be implemented in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. (By referring to the accompanying drawings...) Figure 1 The features of the embodiments disclosed herein and how to implement the features of the embodiments disclosed herein will become apparent from the embodiments described in more detail herein.

[0021] Unless the context explicitly specifies otherwise, references to elements (e.g., “the”) may include plural forms. For purposes of meaning and interpretation, the term “and / or” is intended to include any combination of the terms “and” and “or”. For example, “A and / or B” can be understood to mean “A, B, or A and B”. The terms “and” and “or” can be used in a connected or separate sense and can be understood as equivalent to “and / or”. For purposes of meaning and interpretation, the phrase “at least one of…” is intended to include the meaning of “at least one of the groups…”. For example, “at least one of A and B” can be understood to mean “A, B, or A and B”.

[0022] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the publicly stated teachings, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0023] For ease of description, spatially relative terms such as “below,” “under,” “down,” “above,” and “above” may be used herein to describe the relationship of one element or feature to another element(s) as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the drawings is flipped, then an element described as “below” or “under” other elements or features will be oriented “above” or “above” other elements or features. Thus, the term “below” can include both above and below orientations. The device may be oriented in other ways, and the spatially relative descriptive terms used herein should be interpreted accordingly.

[0024] The terminology used herein is for the purpose of describing embodiments of the present invention and is not intended to limit the disclosure. As used herein, the singular form “a” is intended to include the plural form as well, unless the context explicitly indicates otherwise. It will be further understood that, when used in this specification, the terms “comprising,” “including,” “containing,” and / or “having” indicate the presence of a stated feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Each of the features of the various disclosed embodiments can be combined in whole or in part, and various technically interconnected and driving relationships are possible. Each embodiment can be implemented independently of each other or can be implemented together in association.

[0025] For ease of explanation, the dimensions of the components in the accompanying drawings may be exaggerated. In other words, since the dimensions and thicknesses of the components in the accompanying drawings can be arbitrarily shown for ease of explanation, the following embodiments disclosed in this utility model are not limited thereto.

[0026] Unless otherwise specified, all terms used in this invention (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms defined in commonly used dictionaries shall be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and unless expressly defined herein, these terms shall not be interpreted in an idealized or overly formal sense.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0029] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0030] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0031] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0032] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0033] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0034] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0035] The first filter compensator 26 is equipped with a first filter compensator drain valve 29, and a first pump group outlet drain valve 28 is provided between the first oil-gas mixed pump 27 and the first mixed pump group outlet check valve 20. The first filter compensator drain valve 29 and the first pump group outlet drain valve 28 are connected by a drain manifold 41.

[0036] The second mixed-transfer pump group 43 includes a second mixed-transfer pump reflux electric valve 30 and a second mixed-transfer pump group inlet electric valve 34 arranged in parallel. The second mixed-transfer pump group inlet electric valve 34 controls the medium in the emergency tank 44 to enter the downstream pipeline. The second mixed-transfer pump reflux electric valve 30 is provided with a second mixed-transfer pump group reflux check valve 31 on the side away from the liquid inlet manifold 23. The second mixed-transfer pump group inlet electric valve 34 is provided with a second filter compensator 35 and a second oil-gas mixed-transfer pump 36 in sequence on the side away from the liquid inlet manifold 23. The second filter compensator 35 is provided with a second filter compensator drain valve 40. The second mixed-transfer pump group reflux check valve 31 and the second oil-gas mixed-transfer pump 36 are connected together to a second pump group outlet drain valve 37. The second filter compensator drain valve 40 and the second pump group outlet drain valve 37 are connected to a drain manifold 41. When needed, the electric valve 39 of the emergency tank inlet pump manifold opens, allowing the medium in the emergency tank 44 to flow into the inlet of the second oil-gas mixed transfer pump 36. The second oil-gas mixed transfer pump 36 operates at a low frequency and small displacement, transporting the medium in the emergency tank to the inlet of the first oil-gas mixed transfer pump 27. This operating mode reduces the impact on the system and ensures the smooth delivery of the medium. The return check valve 31 of the second mixed transfer pump group ensures that the medium output by the second oil-gas mixed transfer pump 36 can only flow to the first oil-gas mixed transfer pump 27, preventing backflow.

[0037] The second mixed-transfer pump group 43 also includes a second mixed-transfer pump group outlet electric gate valve 32 and a third mixed-transfer pump group outlet electric gate valve 33 arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. The second mixed-transfer pump group outlet electric gate valve 32 is also connected to the second mixed-transfer pump group return check valve 31 and the second oil-gas mixed-transfer pump 36.

[0038] The pressure relief of this automatic booster device for mixed oil and gas transportation includes inlet pressure relief and outlet pressure relief. The specific pressure relief process is as follows: The specific inlet pressure relief process is as follows: An inlet mechanical safety valve is installed in the inlet process, such as... Figure 1 The system includes a main inlet pressure relief safety valve 14, an inlet gate valve 17, and an outlet gate valve 15. The set pressure value of the inlet mechanical safety valve is preset according to the system design requirements to ensure that the pressure of the inlet process is controlled within a safe range. When the pressure of the medium in the inlet process rises due to upstream pressure fluctuations, equipment failure, or other reasons and exceeds the set pressure of the mechanical safety valve, such as... Figure 1 The electric pressure relief valve 18 in the main inlet pipeline automatically opens. At this time, excess medium in the inlet process flows into the emergency tank 44 through the safety valve pressure relief channel, thereby effectively reducing the pressure in the inlet process. When the pressure in the inlet process drops below the set pressure, the electric pressure relief valve 18 automatically closes, restoring the inlet process to normal operation and ensuring the safe and stable operation of the system.

[0039] The outlet pressure relief process is as follows: An outlet mechanical safety valve is also installed at the outlet, such as... Figure 1 The system includes a main outlet pressure relief safety valve 12, an inlet gate valve 13, and an outlet gate valve 11. The set pressure value of the outlet safety valve is determined based on the operating conditions at the outlet end and the equipment's capacity. When the pressure of the medium in the outlet process increases due to changes in downstream resistance, valve malfunction, or other reasons and exceeds the set pressure of the mechanical safety valve, the electric pressure relief gate valve 16 in the main outlet process, as shown in the figure, automatically opens. Excess medium flows into the emergency tank 44 through the safety valve's pressure relief channel, promptly releasing the pressure in the outlet process. Once the pressure in the outlet process drops below the set pressure, the electric pressure relief gate valve 16 automatically closes, and the outlet process returns to normal transport status.

[0040] Through the aforementioned inlet and outlet pressure relief processes, the system effectively controls the pressure of the medium at both the inlet and outlet, preventing equipment damage and safety accidents caused by excessive pressure. Emergency tank 44, as the receiving container for the pressure-relieved medium, plays a crucial buffering role. The entire pressure relief process is highly automated, capable of rapidly responding to pressure changes and ensuring stable system operation.

[0041] The flow charts for the reflux process, replenishment process, destocking process, and emergency process of this utility model's automatic booster device for oil and gas mixed transportation are as follows: Reflux process: The inlet and outlet processes are connected via electric valves, such as... Figure 1 The second mixed-transfer pump reflux electric valve 30 and the second mixed-transfer pump group reflux check valve 31 can be manually or automatically adjusted as needed to control the reflux of the medium between the inlet and outlet. When it is necessary to adjust the flow rate or pressure, the reflux of the medium can be achieved by controlling the opening of the electric valve, thereby optimizing the flow distribution and pressure balance during the transportation process.

[0042] Liquid replenishment process: The filter compensator is controlled by an electric valve at the bottom, such as... Figure 1 The second filter compensator drain valve 40 is automatically adjusted by an electric valve when the mixed pump, such as the first oil-gas mixed pump 27 or the second oil-gas mixed pump 36, needs to be cooled and replenished.

[0043] Lowering the tank level process: This lowering function can be divided into manual and automatic modes. Manual mode refers to manual operation, while automatic mode involves setting the upper and lower liquid levels of the emergency tank. When the liquid level reaches the high limit, the oil-gas mixing pump starts; when the liquid level reaches the low limit, the oil-gas mixing pump stops. The outlet of the emergency tank 44 is connected to the inlet of the second oil-gas mixing pump 36. Figure 1The emergency tank inlet pump manifold 38 and the emergency tank inlet pump manifold electric valve 39 allow the second mixed-gas pump group 43 to switch to a low-displacement operation mode when the first mixed-gas pump group 42 is operating normally. This allows the second mixed-gas pump group 43 to draw media from the emergency tank for transport, achieving a reduction in the media level within the emergency tank. Due to the auxiliary transport of the second oil-gas mixed-gas pump 36, the displacement of the first oil-gas mixed-gas pump 27 is slightly higher than the normal transport flow rate. However, this increase is within a controllable range and will not affect the normal operation of the first oil-gas mixed-gas pump 27. The increased displacement also slightly raises the system pressure slightly above the normal level, but this pressure increase will not damage the system and reduces pressure shock to the pipeline. The low-frequency, low-displacement transport mode of the second oil-gas mixed-gas pump 36 and the unified output of the first oil-gas mixed-gas pump 27 work together to minimize pressure shock to the pipeline, protecting the pipeline and related equipment and extending their service life. In an emergency, the inlet gate valve can be closed, such as... Figure 1 The inlet pipe of the emergency tank 44 is connected to the main gate valve 24. The medium flows from the emergency tank 44 into the first mixed-transfer pump group 42 and the second mixed-transfer pump group 43 for external transport, ensuring the continuity of medium transport and preventing interruptions due to unforeseen circumstances. Through this design, the system can simultaneously handle the medium in the emergency tank using the second mixed-transfer pump 36 while the first oil-gas mixed-transfer pump 27 is conducting normal oil-gas mixed-transfer. This operation not only improves the system's flexibility and reliability but also reduces pressure shocks to the pipeline, ensuring the safety and efficiency of the entire transport process.

[0044] These processes, combining automated control with manual adjustment, enhance the system's flexibility and reliability. The reflux process optimizes flow distribution and pressure balance, the replenishment process ensures stable operation of the mixing pump, the destocking process optimizes inventory management, and the emergency process ensures continuity of media delivery in emergency situations. The entire system is designed to accommodate various operating conditions and emergency scenarios, ensuring the safety, efficiency, and stability of the media delivery process.

[0045] The working principle of this utility model's automatic booster device for mixed oil and gas transportation, and the detailed explanation of the inlet overpressure and outlet overpressure handling process are as follows: Imported overpressure treatment process: 1. Pressure rise detection and response: When the inlet pressure rises due to excessive influent flow, power outage at the site, process switching error, or malfunction of the mixing pump, the control system detects the pressure increase signal. After receiving the pressure increase command, the frequency converter increases the speed of the mixing pump (such as the first oil-gas mixing pump 27 or the second oil-gas mixing pump 36) to increase the displacement, thereby maintaining the inlet pressure within a reasonable range.

[0046] 2. Pressure relief via imported electric valve: If increasing the displacement of the mixed-transfer pump still fails to resolve the overpressure issue, the inlet pressure will rise further. When it reaches the preset opening pressure of the inlet electric pressure relief valve (such as the main inlet electric pressure relief valve 18), the electric valve will open, releasing the overpressure medium into the emergency tank 44 through the pressure relief pipeline (such as the outlet of the main inlet pressure relief safety valve 14). When the inlet pressure drops below the set pressure relief pressure, the electric valve will automatically close.

[0047] 3. Mechanical safety valve pressure relief: If the first two steps fail to effectively reduce the inlet pressure, and the pressure continues to rise to the opening pressure of the mechanical safety valve (such as the pressure relief safety valve 14 in the main inlet pipeline), the mechanical safety valve will automatically open, releasing the overpressure medium into the emergency tank through the pressure relief pipeline. After the pressure drops to a safe value, the mixing pump will continue to operate normally.

[0048] Outlet overpressure treatment process 1. Pressure rise detection and response: When the outlet pressure rises due to problems such as excessive discharge volume, incorrect process switching, or pipeline blockage, the control system detects the pressure increase signal. Upon receiving the pressure increase command, the frequency converter reduces the speed of the mixing pump to stabilize the discharge volume and prevent the outlet pressure from rising further.

[0049] 2. Outlet electric valve backflow relief: If the overpressure problem cannot be resolved even after the mixed-transfer pump discharge stabilizes, and the outlet pressure further increases to the preset opening pressure of the outlet electric pressure relief valve (such as the main outlet electric pressure relief valve 16), the electric valve will open to a certain degree to allow backflow pressure relief, returning some of the medium to the inlet process. When the outlet pressure drops below the set pressure relief pressure, the electric valve will automatically close.

[0050] 3. Pressure relief via imported electric valve: If the pressure fails to decrease after the outlet electric valve vents backflow, causing the inlet pressure to rise and reach the preset opening pressure of the inlet electric pressure relief gate valve (such as the main inlet line electric pressure relief gate valve 18), the inlet electric valve will open, releasing the overpressure medium into the emergency tank through the pressure relief pipeline. When the inlet pressure drops below the set pressure relief pressure, the electric valve will automatically close.

[0051] 4. The mixed-transfer pump stops operating: If the first three steps fail to effectively reduce the outlet pressure, and the pressure continues to rise until the mixing pump stops operating, the mixing pump will stop running to prevent the pressure from rising further.

[0052] 5. Mechanical safety valve pressure relief: If the first four steps fail to effectively reduce the outlet pressure, and the pressure continues to rise to the opening pressure of the mechanical safety valve (such as the main outlet pipeline pressure relief safety valve 12), the mechanical safety valve will automatically open, releasing the overpressure medium into the emergency tank through the pressure relief pipeline. After the pressure is reduced, the mixing pump can start and operate normally.

[0053] In summary, this utility model of an automatic booster device for mixed oil and gas transportation can effectively cope with overpressure situations at the inlet and outlet, protect equipment and pipelines from damage, and ensure the safety and stability of the entire transportation process. These measures include frequency converter control of the mixed transportation pump speed, automatic opening and closing of the electric valve, and the final protection function of the mechanical safety valve. The emergency tank 44, as a receiving container for the pressure relief medium, plays a crucial buffering role.

[0054] Example 1 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0055] Example 2 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0056] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0057] Example 3 Automatic booster device for mixed oil and gas transportation, such as Figure 1As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0058] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0059] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0060] Example 4 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0061] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0062] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0063] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0064] Example 5 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0065] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0066] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0067] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0068] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0069] Example 6 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0070] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0071] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0072] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0073] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0074] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0075] Example 7 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0076] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0077] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0078] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0079] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0080] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0081] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0082] Example 8 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0083] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0084] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0085] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0086] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0087] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0088] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0089] The first filter compensator 26 is equipped with a first filter compensator drain valve 29, and the first oil-gas mixed transport pump 27 is connected to the first mixed transport pump group outlet check valve 20 with a first pump group outlet drain valve 28.

[0090] Example 9 Automatic booster device for mixed oil and gas transportation, such as Figure 1As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0091] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0092] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0093] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0094] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0095] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0096] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0097] The first filter compensator 26 is equipped with a first filter compensator drain valve 29, and a first pump group outlet drain valve 28 is provided between the first oil-gas mixed pump 27 and the first mixed pump group outlet check valve 20. The first filter compensator drain valve 29 and the first pump group outlet drain valve 28 are connected by a drain manifold 41.

[0098] Example 10 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0099] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0100] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0101] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0102] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0103] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0104] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0105] The first filter compensator 26 is equipped with a first filter compensator drain valve 29, and a first pump group outlet drain valve 28 is provided between the first oil-gas mixed pump 27 and the first mixed pump group outlet check valve 20. The first filter compensator drain valve 29 and the first pump group outlet drain valve 28 are connected by a drain manifold 41.

[0106] The second mixed-transfer pump group 43 includes a second mixed-transfer pump reflux electric valve 30 and a second mixed-transfer pump group inlet electric valve 34 arranged in parallel. The second mixed-transfer pump group inlet electric valve 34 controls the medium in the emergency tank 44 to enter the downstream pipeline. The second mixed-transfer pump reflux electric valve 30 is provided with a second mixed-transfer pump group reflux check valve 31 on the side away from the liquid inlet manifold 23. The second mixed-transfer pump group inlet electric valve 34 is provided with a second filter compensator 35 and a second oil-gas mixed-transfer pump 36 in sequence on the side away from the liquid inlet manifold 23. The second filter compensator 35 is provided with a second filter compensator drain valve 40. The second mixed-transfer pump group reflux check valve 31 and the second oil-gas mixed-transfer pump 36 are connected together to a second pump group outlet drain valve 37. The second filter compensator drain valve 40 and the second pump group outlet drain valve 37 are connected to a drain manifold 41.

[0107] Example 11 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0108] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0109] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0110] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0111] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0112] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0113] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0114] The first filter compensator 26 is equipped with a first filter compensator drain valve 29, and a first pump group outlet drain valve 28 is provided between the first oil-gas mixed pump 27 and the first mixed pump group outlet check valve 20. The first filter compensator drain valve 29 and the first pump group outlet drain valve 28 are connected by a drain manifold 41.

[0115] The second mixed-transfer pump group 43 includes a second mixed-transfer pump reflux electric valve 30 and a second mixed-transfer pump group inlet electric valve 34 arranged in parallel. The second mixed-transfer pump group inlet electric valve 34 controls the medium in the emergency tank 44 to enter the downstream pipeline. The second mixed-transfer pump reflux electric valve 30 is provided with a second mixed-transfer pump group reflux check valve 31 on the side away from the liquid inlet manifold 23. The second mixed-transfer pump group inlet electric valve 34 is provided with a second filter compensator 35 and a second oil-gas mixed-transfer pump 36 in sequence on the side away from the liquid inlet manifold 23. The second filter compensator 35 is provided with a second filter compensator drain valve 40. The second mixed-transfer pump group reflux check valve 31 and the second oil-gas mixed-transfer pump 36 are connected together to a second pump group outlet drain valve 37. The second filter compensator drain valve 40 and the second pump group outlet drain valve 37 are connected to a drain manifold 41. When needed, the electric valve 39 of the emergency tank inlet pump manifold opens, allowing the medium in the emergency tank 44 to flow into the inlet of the second oil-gas mixed transfer pump 36. The second oil-gas mixed transfer pump 36 operates at a low frequency and small displacement, transporting the medium in the emergency tank to the inlet of the first oil-gas mixed transfer pump 27. This operating mode reduces the impact on the system and ensures the smooth delivery of the medium. The return check valve 31 of the second mixed transfer pump group ensures that the medium output by the second oil-gas mixed transfer pump 36 can only flow to the first oil-gas mixed transfer pump 27, preventing backflow.

[0116] Example 12 Automatic booster device for mixed oil and gas transportation, such as Figure 1 As shown, the system includes an inlet manifold 23 and an inlet manifold gate valve 24. Downstream of the inlet manifold 23, a first mixed pump group 42 and a second mixed pump group 43 are connected in parallel. The first mixed pump group 42 and the second mixed pump group 43 are connected to the outlet manifold 22 of the mixed pump group. Downstream of the outlet manifold 22 of the mixed pump group, an electric heater 2 and a gas-liquid flow meter 5 are connected through a pipeline. The first mixed pump group 42 and the second mixed pump group 43 are also connected to a sewage manifold 41. The second mixed pump group 43 is connected to an emergency tank inlet pump manifold 38. The emergency tank inlet pump manifold 38 is connected to an emergency tank 44.

[0117] The end of the outlet manifold 22 of the mixed pump group is also connected to the pressure relief pipeline 10, and the end of the pressure relief pipeline 10 is connected to the emergency tank 44. The pressure relief pipeline 10 is provided with the following valves in sequence from the outlet manifold 22 of the mixed pump group to the emergency tank 44: the inlet gate valve 13 of the main outlet pressure relief safety valve, the main outlet pressure relief safety valve 12, and the outlet gate valve 11 of the main outlet pressure relief safety valve.

[0118] A main inlet pressure relief safety valve 14 and a main inlet electric pressure relief gate valve 18 are connected in parallel between the pressure relief pipeline 10 and the inlet manifold 23. An inlet gate valve 17 and an outlet gate valve 15 are respectively installed on both sides of the main inlet pressure relief safety valve 14 in the direction from the inlet manifold 23 to the pressure relief pipeline 10. A main outlet electric pressure relief gate valve 16 is installed between the main inlet electric pressure relief gate valve 18 and the outlet manifold 22 of the mixed-transfer pump group. An oil pump bypass gate valve 19 is connected in parallel to the main outlet electric pressure relief valve 16. An emergency tank inlet oil pump manifold electric valve 39 is installed on the emergency tank inlet oil pump manifold 38.

[0119] The electric heater 2 is located downstream of the gas-liquid flow meter 5. The end of the heater 2 is connected to the discharge main pipe 45. The outlet manifold 22 of the mixed pump group is connected to the discharge main pipe 45 through a first bypass pipe 9. The first bypass pipe 9 is equipped with a gas-liquid flow meter bypass gate valve 8 and an electric heater bypass gate valve 7.

[0120] The gas-liquid flow meter 5 is equipped with an inlet gate valve 6 and an outlet gate valve 4 on both sides, and the gas-liquid flow meter 5 is connected in parallel with the gas-liquid flow meter bypass gate valve 8.

[0121] Electric heater 2 is provided with an electric heater inlet gate valve 3 and an electric heater outlet gate valve 1 on both sides. Electric heater 2 is connected in parallel with electric heater bypass gate valve 7. A second bypass pipeline 46 is connected between electric heater inlet gate valve 3 and gas-liquid flow meter outlet gate valve 4. The other end of the second bypass pipeline 46 is connected to the first bypass pipeline 9.

[0122] The first mixed-transfer pump group 42 includes a first mixed-transfer pump group inlet electric valve 25, a first filter compensator 26, a first oil-gas mixed-transfer pump 27, a first mixed-transfer pump group outlet check valve 20, and a first mixed-transfer pump group outlet electric gate valve 21, which are arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. Under normal operating conditions, the first oil-gas mixed-transfer pump 27 draws in the oil-gas mixture after it has been processed by the first filter compensator 26 through the first mixed-transfer pump group inlet electric valve 25. The first mixed-transfer pump group outlet check valve 20 ensures that the oil-gas mixture can only flow in one direction to prevent backflow. The first mixed-transfer pump group outlet electric gate valve 21 controls the flow of the oil-gas mixture from the outlet of the first oil-gas mixed-transfer pump 27 to the mixed-transfer pump group outlet manifold 22, and then delivers it to the subsequent processing or storage facilities.

[0123] The first filter compensator 26 is equipped with a first filter compensator drain valve 29, and a first pump group outlet drain valve 28 is provided between the first oil-gas mixed pump 27 and the first mixed pump group outlet check valve 20. The first filter compensator drain valve 29 and the first pump group outlet drain valve 28 are connected by a drain manifold 41.

[0124] The second mixed-transfer pump group 43 includes a second mixed-transfer pump reflux electric valve 30 and a second mixed-transfer pump group inlet electric valve 34 arranged in parallel. The second mixed-transfer pump group inlet electric valve 34 controls the medium in the emergency tank 44 to enter the downstream pipeline. The second mixed-transfer pump reflux electric valve 30 is provided with a second mixed-transfer pump group reflux check valve 31 on the side away from the liquid inlet manifold 23. The second mixed-transfer pump group inlet electric valve 34 is provided with a second filter compensator 35 and a second oil-gas mixed-transfer pump 36 in sequence on the side away from the liquid inlet manifold 23. The second filter compensator 35 is provided with a second filter compensator drain valve 40. The second mixed-transfer pump group reflux check valve 31 and the second oil-gas mixed-transfer pump 36 are connected together to a second pump group outlet drain valve 37. The second filter compensator drain valve 40 and the second pump group outlet drain valve 37 are connected to a drain manifold 41. When needed, the electric valve 39 of the emergency tank inlet pump manifold opens, allowing the medium in the emergency tank 44 to flow into the inlet of the second oil-gas mixed transfer pump 36. The second oil-gas mixed transfer pump 36 operates at a low frequency and small displacement, transporting the medium in the emergency tank to the inlet of the first oil-gas mixed transfer pump 27. This operating mode reduces the impact on the system and ensures the smooth delivery of the medium. The return check valve 31 of the second mixed transfer pump group ensures that the medium output by the second oil-gas mixed transfer pump 36 can only flow to the first oil-gas mixed transfer pump 27, preventing backflow.

[0125] The second mixed-transfer pump group 43 also includes a second mixed-transfer pump group outlet electric gate valve 32 and a third mixed-transfer pump group outlet electric gate valve 33 arranged sequentially from the tap liquid inlet manifold 23 to the mixed-transfer pump group outlet manifold 22. The second mixed-transfer pump group outlet electric gate valve 32 is also connected to the second mixed-transfer pump group return check valve 31 and the second oil-gas mixed-transfer pump 36.

[0126] In summary, this utility model of an automatic booster device for mixed oil and gas transportation can effectively cope with overpressure at the inlet and outlet, protect equipment and pipelines from damage, and ensure the safety and stability of the entire transportation process.

[0127] The features of the various embodiments disclosed in this utility model can be combined in part or in whole. As will be clearly understood by those skilled in the art, various technical interactions and operations are possible. Furthermore, various embodiments can be implemented individually or in combination.

[0128] In summarizing the detailed description, those skilled in the art will understand that many variations and modifications can be made to the described embodiments without departing from this disclosure. Therefore, the disclosed embodiments are used in a general and descriptive sense and are not intended to be limiting.

Claims

1. An automatic booster device for mixed oil and gas transportation, characterized in that, It includes an inlet manifold (23) and an inlet manifold gate valve (24). Downstream of the inlet manifold (23), a first mixed pump group (42) and a second mixed pump group (43) are connected in parallel. The first mixed pump group (42) and the second mixed pump group (43) are connected together to the outlet manifold (22) of the mixed pump group. Downstream of the outlet manifold (22), an electric heater (2) and a gas-liquid flow meter (5) are connected through a pipeline. The first mixed pump group (42) and the second mixed pump group (43) are also connected to a sewage manifold (41). The second mixed pump group (43) is connected to an emergency tank inlet pump manifold (38). The emergency tank inlet pump manifold (38) is connected to an emergency tank (44).

2. The automatic booster device for oil and gas mixed transportation according to claim 1, characterized in that, The end of the outlet manifold (22) of the mixed pump group is also connected to the pressure relief pipeline (10), and the end of the pressure relief pipeline (10) is connected to the emergency tank (44). The pressure relief pipeline (10) is provided with the inlet gate valve (13), the outlet gate valve (12), and the outlet gate valve (11) of the main outlet pressure relief safety valve in sequence from the outlet manifold (22) of the mixed pump group to the emergency tank (44).

3. The automatic booster device for oil and gas mixed transportation according to claim 2, characterized in that, A main inlet pressure relief safety valve (14) and a main inlet electric pressure relief gate valve (18) are connected in parallel between the pressure relief pipeline (10) and the inlet manifold (23). On both sides of the main inlet pressure relief safety valve (14), inlet gate valve (17) and outlet gate valve (15) are respectively provided in the direction from the inlet manifold (23) to the pressure pipeline (10). A main outlet electric pressure relief gate valve (16) is provided between the main inlet electric pressure relief gate valve (18) and the outlet manifold (22) of the mixed pump group. A bypass gate valve (19) of the oil pump is connected in parallel with the main outlet electric pressure relief gate valve (16).

4. The automatic booster device for oil and gas mixed transportation according to claim 1, characterized in that, An electric valve (39) for the emergency tank inlet pump manifold (38) is provided on the emergency tank inlet pump manifold.

5. The automatic booster device for oil and gas mixed transportation according to claim 1, characterized in that, The electric heater (2) is located downstream of the gas-liquid flow meter (5). The end of the heater (2) is connected to the discharge main pipe (45). The outlet manifold (22) of the mixed pump group is connected to the discharge main pipe (45) via a first bypass pipe (9). The first bypass pipe (9) is equipped with a gas-liquid flow meter bypass gate valve (8) and an electric heater bypass gate valve (7).

6. The automatic booster device for oil and gas mixed transportation according to claim 5, characterized in that, The gas-liquid flow meter (5) is provided with a gas-liquid flow meter inlet gate valve (6) and a gas-liquid flow meter outlet gate valve (4) on both sides respectively. The gas-liquid flow meter (5) is connected in parallel with the gas-liquid flow meter bypass gate valve (8).

7. The automatic booster device for oil and gas mixed transportation according to claim 6, characterized in that, The electric heater (2) is provided with an electric heater inlet gate valve (3) and an electric heater outlet gate valve (1) on both sides respectively. The electric heater (2) is connected in parallel with the electric heater bypass gate valve (7). The electric heater inlet gate valve (3) and the gas-liquid flow meter outlet gate valve (4) are connected by a second bypass pipeline (46). The other end of the second bypass pipeline (46) is connected to a first bypass pipeline (9).

8. The automatic booster device for oil and gas mixed transportation according to claim 1, characterized in that, The first mixed-transfer pump group (42) includes a first mixed-transfer pump group inlet electric valve (25), a first filter compensator (26), a first oil-gas mixed-transfer pump (27), a first mixed-transfer pump group outlet check valve (20) and a first mixed-transfer pump group outlet electric gate valve (21) arranged sequentially from the tap liquid inlet manifold (23) to the mixed-transfer pump group outlet manifold (22).

9. The automatic booster device for oil and gas mixed transportation according to claim 8, characterized in that, The first filter compensator (26) is provided with a first filter compensator drain valve (29), and a first pump group outlet drain valve (28) is provided between the first oil-gas mixed pump (27) and the first mixed pump group outlet check valve (20). The first filter compensator drain valve (29) and the first pump group outlet drain valve (28) are connected by a drain manifold (41).

10. The automatic booster device for oil and gas mixed transportation according to claim 1, characterized in that, The second mixed-transfer pump group (43) includes a second mixed-transfer pump return electric valve (30) and a second mixed-transfer pump group inlet electric valve (34) arranged in parallel. The second mixed-transfer pump return electric valve (30) is provided with a second mixed-transfer pump group return check valve (31) on the side away from the inlet manifold (23). The second mixed-transfer pump group inlet electric valve (34) is provided with a second filter compensator (35) and a second oil-gas mixed-transfer pump (36) in sequence on the side away from the inlet manifold (23). The second filter compensator (35) is provided with a second filter compensator drain gate valve (40). The second mixed-transfer pump group return check valve (31) and the second oil-gas mixed-transfer pump (36) are connected together with a second pump group outlet drain gate valve (37). The second filter compensator drain gate valve (40) and the second pump group outlet drain gate valve (37) are connected to a drain manifold (41).

11. The automatic booster device for oil and gas mixed transportation according to claim 10, characterized in that, The second mixed pump group (43) also includes a second mixed pump group outlet electric gate valve (32) and a third mixed pump group outlet electric gate valve (33) arranged sequentially from the tap liquid inlet manifold (23) to the mixed pump group outlet manifold (22). The second mixed pump group outlet electric gate valve (32) is also connected to the second mixed pump group return check valve (31) and the second oil and gas mixed pump (36).

Images