CN114278864A - Multiphase flow mixing system - Google Patents
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Abstract
本发明公开了一种多相流混输系统，通过将多个多相流混输装置用输送管线串联，多相流混合物输送至一个多相流混输装置后，经过多相流混输装置中两个罐体之间的泵送液体循环实现增压，之后传输至下一个多相流混输装置；通过多个多相流混输装置的逐级增压，以实现多相流混合物的远距离增压输送。由于多相流混输装置结构较简单，和传统的增压设备相比工作可靠，且建设成本较低。另外，当多相流混输系统中输入的是多相顺序流时，多个多相流混输装置之间只需要一根传输管线连通即可实现气体和液体顺序流的输送，提高了管线的利用率，节约了成本。
The invention discloses a multiphase flow mixing and conveying system. By connecting a plurality of multiphase flow mixing and conveying devices in series with conveying pipelines, the multiphase flow mixture is transported to a multiphase flow mixing and conveying device, and then passes through the multiphase flow mixing and conveying device. The pumped liquid circulation between the two tanks in the middle of the system realizes pressurization, and then transfers to the next multiphase flow mixing device; through the step-by-step pressurization of multiple multiphase flow mixing devices, the multiphase flow mixture can be pressurized step by step. Long-distance pressurized delivery. Due to the simple structure of the multiphase flow mixing and conveying device, the operation is reliable and the construction cost is low compared with the traditional booster equipment. In addition, when the multiphase sequential flow is input into the multiphase flow mixing transmission system, only one transmission pipeline is needed to communicate between multiple multiphase flow mixing transmission devices to realize the transmission of gas and liquid sequential flow, which improves the pipeline performance. utilization rate and cost savings.
Description
Technical Field
The application relates to the technical field of oil and gas transmission, in particular to a multiphase flow mixed transmission system.
Background
Oil gas is gathered at the oil field back, carries the destination through pipeline, need set up supercharging equipment along pipeline in order to guarantee oil gas transmission's efficiency. When the conveying distance is long, the number of supercharging equipment needed to be arranged along the way is large, but the traditional supercharging equipment is complex in structure and high in cost; in addition, in the oil or gas conveying scene, there are requirements for respectively conveying oil or gas in different time periods, and because different conveying pipelines are required for conveying liquid and gas, more conveying pipelines are required during remote conveying, so that the cost is increased, and the utilization rate of the pipelines is low.
Disclosure of Invention
The application provides a multiphase flow mixed transportation system, and aims to solve the problems of high equipment construction cost and low utilization rate of a transportation pipeline in the process of remotely transporting oil gas.
The application provides a multiphase flow mixed transportation system, including:
the multiphase flow mixing and conveying device comprises a first tank body, a second tank body, a reversing mechanism communicated with the first tank body and the second tank body, a first conveying mechanism communicated with the first tank body and the second tank body and used for inputting materials, and a second conveying mechanism communicated with the first tank body and the second tank body and used for outputting materials, wherein the reversing mechanism drives liquid in the first tank body and the second tank body to reciprocate, so that the first tank body and the second tank body alternately form a vacuum suction cavity and/or a compression discharge cavity;
the second transmission mechanism of one multiphase flow mixing and conveying device in two adjacent multiphase flow mixing and conveying devices is communicated with the first transmission mechanism of the other multiphase flow mixing and conveying device.
Furthermore, the multiphase flow mixing and conveying devices form oil-gas conveying pressurization equipment along the way, and all the multiphase flow mixing and conveying devices are sequentially connected in series, or part of the multiphase flow mixing and conveying devices are connected in parallel and part of the multiphase flow mixing and conveying devices are connected in series.
The multiphase flow mixing and conveying device is connected with the storage device, and the second transmission mechanism of the multiphase flow mixing and conveying device is communicated with the storage device.
The multi-phase flow mixing and conveying device comprises a storage device, the storage device is connected with at least one multi-phase flow mixing and conveying device along the way, the multi-phase flow mixing and conveying device connected with the storage device forms an intermediate flow distribution and conveying device, and the second transmission mechanism of the intermediate flow distribution and conveying device is respectively connected with the storage device and the next multi-phase flow mixing and conveying device adjacent to the intermediate flow distribution and conveying device.
Furthermore, the multiphase flow mixing and conveying device further comprises a storage device, and the second output mechanism of at least one multiphase flow mixing and conveying device is connected with the storage device.
Further, the second transfer mechanism of at least one multiphase flow commingling device has a first transfer line for transferring oil and a second transfer line for transferring gas.
Further, the former multiphase flow mixing and conveying device in the two adjacent multiphase flow mixing and conveying devices conveys oil or gas to the next multiphase flow mixing and conveying device according to time.
Further, the storage device is at least one of an oil storage device for storing oil, a gas storage device for storing gas, a gas terminal, and an oil terminal.
Furthermore, a pressure adjusting device is arranged on the storage device and used for adjusting the pressure in the storage device.
Further, the first transmission mechanism comprises a first transmission pipeline group for communicating the first tank body and the second tank body and a first transmission control valve arranged on the first pipeline group;
the second transmission mechanism comprises a second pipeline group for communicating the first tank body and the second tank body and a second transmission control valve arranged on the second transmission pipeline group;
and the second transmission pipeline group of the previous multiphase flow mixed transmission device is connected with the first transmission pipeline group of the next adjacent multiphase flow mixed transmission device.
Further, the first multiphase flow mixing and conveying device and the second multiphase flow mixing and conveying device further comprise a detection mechanism and a control mechanism;
the detection mechanism is arranged on the first tank body and the second tank body and is in telecommunication connection with the reversing mechanism;
the control mechanism is in telecommunication connection with the first transmission mechanism, the second transmission mechanism, the reversing mechanism and the detection mechanism.
Furthermore, the multiphase flow mixed transportation system also comprises a control system, and the control system is in electrical communication with each multiphase flow mixed transportation device.
The application provides a multiphase flow mixed transportation system, which connects a plurality of multiphase flow mixed transportation devices by using a transportation pipeline; a reversing mechanism in the multiphase flow mixing and conveying device drives liquid to circulate in the two tank bodies, so that a first tank body and a second tank body in the multiphase flow mixing and conveying device alternately form a vacuum suction cavity and a compression discharge cavity, and the multiphase flow mixing and conveying device continuously sucks materials from the first conveying mechanism and discharges the materials to the second conveying mechanism; after being conveyed to a multiphase flow mixing and conveying device, the multiphase flow mixture is pressurized and then conveyed to the next multiphase flow mixing and conveying device; the multi-phase flow mixing and conveying device can realize the long-distance pressurization and conveying of the multi-phase flow mixture through the gradual pressurization of the multi-phase flow mixing and conveying devices. The multiphase flow mixing and conveying device has a simple structure, and is reliable in operation and low in construction cost compared with the traditional supercharging equipment. In addition, when multiphase sequential flow is input in the multiphase flow mixing and conveying system, the conveying of the gas and liquid sequential flow can be realized only by communicating a plurality of multiphase flow mixing and conveying devices through a transmission pipeline, the utilization rate of the pipeline is improved, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a multiphase flow mixing and conveying apparatus provided in a first embodiment of the present application;
FIG. 2 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in the first embodiment of the present application;
FIG. 3 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in a second embodiment of the present application;
FIG. 4 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in a third embodiment of the present application;
FIG. 5 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in a fourth embodiment of the present application;
FIG. 6 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in a fifth embodiment of the present application;
FIG. 7 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in a sixth embodiment of the present application;
FIG. 8 is a schematic structural diagram of a multiphase flow mixing and transporting device provided in a sixth embodiment of the present application;
fig. 9 is a schematic structural diagram of a multiphase flow mixing and conveying system provided in a seventh embodiment of the present application.
In the figure, a multiphase flow commingling device 10; a second tank 102; a reversing mechanism 103; a power pump 1030; a first diversion line set 1031; a second set of commutation lines 1032; branch line 1031 a; branch line 1031 b; branch line 1031 c; branch line 1032 a; branch line 1032 b; a first valve 1033 a; a second valve 1033 b; a diverter valve 1034; port A; a port B; a port C; a port D; a reverse line 1035;
a first transport mechanism 104; a first transmission line group 1041; a first confluence line 1041 a; a first branch line 1041 b; a second branch line 1041 c; a first transfer control valve 1042; a first transmission interface 1042 a; a second transmission interface 1042 b;
a second transport mechanism 105; a second set of transfer lines 1051; a second confluent line 1051 a; a third branch line 1051 b; a fourth branch line 1051 c; a second transfer control valve 1052; the third transmission interface 1052 a; the fourth transmission interface 1052 b; a first transfer line 1051 d; a second transfer line 1051 e; a first transfer valve X; a second transfer valve Y;
a detection mechanism 210; a first sensor 2101; a second sensor 2102; a control mechanism 211;
a transfer line 14; a bypass line 140; a storage device 13; a first storage device 131; a second storage device 132.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The embodiment of the present application provides a multiphase flow mixing and transporting system, which is described in detail below.
Fig. 1 is a multiphase flow mixing and conveying apparatus in a multiphase flow mixing and conveying system according to an embodiment of the present application. The multiphase flow mixing and conveying device 10 comprises a first tank 101, a second tank 102, a reversing mechanism 103 communicated with the first tank 101 and the second tank 102, a first conveying mechanism 104 respectively communicated with the first tank 101 and the second tank 102, and a second conveying mechanism 105 respectively communicated with the first tank 101 and the second tank 102; the reversing mechanism drives the liquid in the first tank 101 and the second tank 102 to circulate back and forth, so that the first tank 101 and the second tank 102 alternately form a vacuum suction cavity and/or a compression discharge cavity.
The branch lines 1031a, 1031c, 1031b constitute a first diversion line set 1031 for liquid flowing from the first tank 101 to the second tank 102, and the branch lines 1032b, 1031c, 1032a constitute a second diversion line set 1032 for liquid flowing from the second tank 102 to the first tank 101; the power pump 1030 in the reversing mechanism 103 can drive the liquid to flow from the first tank 101 to the second tank 102, or drive the liquid to flow from the second tank 102 to the first tank 101; the diverter mechanism 103 also includes a first diverter valve 1033a and a second diverter valve 1033 b.
When the first direction changing valve 1033a is opened and the second direction changing valve 1033b is closed, the liquid in the first tank 101 flows to the second tank 102 through the branch lines 1031a, 1031c, 1031b under the action of the power pump 1030, and the first tank 101 forms a vacuum suction chamber; when the direction changing mechanism 103 is changed, i.e. the first direction changing valve 1033a is closed and the second direction changing valve 1033b is opened, the liquid in the second tank 102 flows to the first tank 101 through the branch lines 1032b, 1031c, 1032a under the action of the power pump 1030, and the second tank 102 forms a vacuum suction chamber.
By repeating the above steps, the first tank 101 and the second tank 102 alternately form a vacuum suction chamber and/or a compression discharge chamber, and the multiphase flow mixing and conveying device 10 can continuously suck the material from the first conveying mechanism 104 and discharge the material from the second conveying mechanism 105.
If a multiphase flow mixture is input into the multiphase flow mixing and transportation device 10 through the first transmission mechanism 104, referring to fig. 1, in the multiphase flow mixing and transportation device 10, when the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, negative pressure is formed in the first tank 101, and the first tank 101 sucks the multiphase flow mixture through the first transmission mechanism 104. After the multiphase flow mixture is drawn into the first tank 101, the gas and liquid are separated, with the gas above the liquid level. The liquid in the first tank 101 flows to the second tank 102 under the driving of the reversing mechanism 103, the liquid level in the second tank 102 rises, the gas on the liquid level is compressed, and the gas-liquid mixture in the second tank 102 is discharged through the second conveying mechanism 105.
When the reversing mechanism 103 drives the liquid to flow from the second tank 102 to the first tank 101, a negative pressure is formed in the second tank 102, and the second tank 102 sucks the multiphase flow mixture through the first transfer mechanism 104. After the multiphase flow mixture is drawn into the second tank 102, the gas and liquid are separated, with the gas above the liquid level. The liquid in the second tank 102 flows to the first tank 101 under the driving of the reversing mechanism 103, the liquid level in the first tank 101 rises, the gas on the liquid level is compressed, and the gas-liquid mixture in the first tank 101 is discharged through the second conveying mechanism 105.
By repeating the above processes, the multiphase flow mixing and conveying device 10 continuously sucks the material, i.e. the multiphase flow mixture, from the first conveying mechanism 104, and the material is pumped and pressurized by the multiphase flow mixing and conveying device 10 and then discharged from the second conveying mechanism 105, so as to realize the continuous pressurized conveying of the multiphase flow mixture. The multiphase flow mixing and transportation device 10 can be used as a pressurization device for conveying multiphase flow mixture, and the multiphase flow mixture can be oil-gas mixture.
If a liquid is supplied to the multiphase flow mixing and transportation device 10 through the first transfer mechanism 104, two tanks in each multiphase flow mixing and transportation device 10 are filled with the liquid in advance. When the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, a negative pressure is formed in the first tank 101, and the first tank 101 sucks the liquid through the first transfer mechanism 104. The liquid in the first tank 101 flows to the second tank 102 under the driving of the reversing mechanism 103, and the liquid in the second tank 102 is discharged through the second conveying mechanism 105.
After the reversing mechanism 103 reverses, liquid is driven to flow from the second tank 102 to the first tank 101, negative pressure is formed in the second tank 102, the second tank 102 sucks in the liquid through the first conveying mechanism 104, the liquid in the second tank 102 flows to the first tank 101 under the driving of the reversing mechanism 103, and after the liquid level in the first tank 101 rises, the gas-liquid in the first tank 101 is discharged through the second conveying mechanism 105.
Repeating the above steps, the multiphase flow mixing and conveying device 10 continuously sucks the liquid from the first conveying mechanism 104 and discharges the liquid to the second conveying mechanism 105, so as to realize the continuous conveying of the liquid.
If gas is input into the multiphase flow mixing and conveying device 10 through the first conveying mechanism 104, the first tank 101 in the multiphase flow mixing and conveying device 10 is filled with circulating liquid in advance, and the liquid level in the second tank 102 is located at the bottom dead center.
Gas enters the first input mechanism 104 through the conveying pipeline 14, when the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, negative pressure is formed in the first tank 101, and the first tank 101 sucks the gas through the first conveying mechanism 104. The liquid in the first tank 101 flows to the second tank 102 under the driving of the reversing mechanism 103, the liquid level in the second tank 102 rises, the gas on the surface is compressed, and the gas in the second tank 102 is discharged through the second conveying mechanism 105.
When the liquid level in the second tank 102 rises to the top dead center and the liquid level in the first tank 101 falls to the bottom dead center, the reversing mechanism 103 reverses to drive the liquid to flow from the second tank 102 to the first tank 101, negative pressure is formed in the second tank 102, the second tank 102 sucks gas through the first transmission mechanism 104, the liquid in the second tank 102 flows to the first tank 101 under the driving of the reversing mechanism 103, the gas on the surface is compressed after the liquid level in the first tank 101 rises, and the gas in the first tank 101 is discharged through the second transmission mechanism 105.
Repeating the above steps, the multiphase flow mixing and conveying device 10 continuously sucks gas from the first conveying mechanism 104 and discharges the pressurized gas to the second conveying mechanism 105, so as to realize the continuous pressurization and conveying of the gas.
In summary, the multiphase flow mixing transportation device 10 can realize transportation of gas-liquid mixture, or gas, or liquid.
As shown in fig. 1, in the embodiment of the present application, a detection mechanism 211 and a control mechanism 212 may be included in the multiphase flow mixing and transportation device. The detection mechanism 211 comprises a first sensor 2101 arranged on the first tank and a second sensor 2102 arranged on the second tank, and the first sensor 2101 and the second sensor 2102 are in telecommunication connection with the control mechanism 212.
The detection mechanism 211 may be a liquid level detection mechanism, i.e., the first sensor 2101 and the second sensor 2102 may be liquid level meters. First sensor 2101 and second sensor 2102 may detect the liquid level in first tank 101 and second tank 102 and send the data to control mechanism 212. The control mechanism controls the reversing mechanism 103 to reverse according to the liquid level information in the first tank 101 and the second tank 102, so that the reversing mechanism 103 can reverse at a proper time, and the conveying efficiency of the multiphase flow mixture is improved.
Fig. 2 is a multiphase flow mixing and conveying system according to a first embodiment of the present application. As shown in fig. 2, the multiphase flow mixing and conveying devices 10 are respectively located at a site, a site B and a site C, and the multiphase flow mixing and conveying devices 10 include the multiphase flow mixing and conveying devices 10.
The multiphase flow mixing and conveying devices 10 are connected through a conveying pipeline 14, and referring to fig. 1 and fig. 2, the second conveying mechanism 105 of one multiphase flow mixing and conveying device 10 in two adjacent multiphase flow mixing and conveying devices 10 is communicated with the first conveying mechanism 104 of the other multiphase flow mixing and conveying device, that is, the second conveying mechanism 105 of the multiphase flow mixing and conveying device 10 at the a site is communicated with the first conveying mechanism 104 of the multiphase flow mixing and conveying device 10 at the B site, and the second conveying mechanism 105 of the multiphase flow mixing and conveying device 10 at the B site is communicated with the first conveying mechanism 104 of the multiphase flow mixing and conveying device 10 at the C site.
In the embodiment provided by the application, each multiphase flow mixing and conveying device 10 is connected through the conveying pipeline 14 in the multiphase flow mixing and conveying system, and when a multiphase flow mixture is input into the multiphase flow mixing and conveying system, each multiphase flow mixing and conveying device can pressurize the multiphase flow mixture and then convey the multiphase flow mixture to an adjacent multiphase flow mixing and conveying device so as to realize the long-distance transmission of the multiphase flow, and because the structure and the working principle of the multiphase flow mixing and conveying device 10 are simpler, the fund can be saved compared with the construction of the traditional pressurizing equipment; when gas and liquid are input in the multiphase flow mixed conveying system in sequence, the multiphase flow mixed conveying devices are connected through only one transmission pipeline, so that gas-liquid sequential flow conveying can be realized, the cost is reduced, and the utilization rate of the pipeline in the multiphase flow mixed conveying system is improved.
In the first embodiment of the application, each multiphase flow mixing and conveying device in the multiphase flow mixing and conveying system forms a pressurization device for remote oil and gas conveying along the way.
Referring to fig. 1 and 2, when an oil-gas mixture is input into the multiphase flow mixing transportation system, namely the input oil-gas mixture enters the first transportation mechanism 104 of the multiphase flow mixing transportation device 10 located at a site, the multiphase flow mixing transportation device 10 located at the site a continuously sucks the oil-gas mixture through the first transportation mechanism 104, discharges the pressurized oil-gas mixture through the second transportation mechanism 105 and then transports the pressurized oil-gas mixture to the multiphase flow mixing transportation device 10 located at a site B, the multiphase flow mixing transportation device 10 located at the site B sucks the oil-gas mixture through the first transportation mechanism 104, discharges the pressurized multiphase flow mixture through the second transportation mechanism 105 and transports the pressurized multiphase flow mixture to the multiphase flow mixing transportation device 10 located at a site C, so as to realize the pressurized transportation of the oil-gas mixture.
As shown in fig. 1, a plurality of multiphase flow mixing and conveying devices 10 are connected in series through a conveying pipeline 14, and after an oil-gas mixture is conveyed to one multiphase flow mixing and conveying device 10, the oil-gas mixture is pressurized through the circulation of pumped liquid between two tanks in the device, and then conveyed to the next multiphase flow mixing and conveying device 10, and the oil-gas mixture is pressurized and conveyed remotely through the step-by-step pressurization of the plurality of multiphase flow mixing and conveying devices 10. The multiphase flow mixing and conveying device 10 is simple in structure and working principle, and can save money compared with the construction of traditional pressurizing equipment.
It should be noted that, in the multiphase flow mixing and conveying system, the number of the multiphase flow mixing and conveying devices 10, the distance between two adjacent multiphase flow mixing and conveying devices 10, and the length of the conveying pipeline 14 between two adjacent multiphase flow mixing and conveying devices 10 may be determined according to factors such as actual use conditions and cost. The multiphase flow mixture is conveyed from the A place to the B place, one multiphase flow mixing and conveying device 10 can be respectively arranged at the A place and the B place, and a plurality of multiphase flow mixing and conveying devices 10 can be arranged between the A place and the B place. In addition, the multiphase flow mixing and conveying device 10 is not limited to the positions a, B and C in fig. 1, and may further include a plurality of different positions, such as the position D and the position E, and the specific number of the positions is not limited, and may be determined according to the actual situation. The length of the transfer line 14 between the two multiphase flow mixing and transferring devices 10 is determined by the distance between the A ground and the B ground, and is not limited herein.
In the second embodiment of the present application, as shown in fig. 3, two multiphase flow mixing and transportation devices 10 are provided in parallel at the B site, and after the multiphase flow mixing and transportation device at the a site outputs the multiphase flow mixture, the multiphase flow mixture is divided to flow into two multiphase flow mixing and transportation devices 10 at the B site, wherein one multiphase flow mixing and transportation device 10 can continue to pressurize and transport the multiphase flow mixture to the C site, and the other multiphase flow mixing and transportation device 10 can pressurize and transport the multiphase flow mixture to a destination at the B site, such as a terminal device or an end user, so as to avoid a decrease in pressure of the multiphase flow mixture when the B site directly branches.
It should be noted that, in the multiphase flow mixing and transporting system, the multiple multiphase flow mixing and transporting devices 10 may be connected in series in sequence, may be connected in parallel in whole, may be connected in parallel in part or connected in series in part, and the specific connection mode may be flexibly adjusted according to actual needs and scenarios, which is not limited herein.
In the third embodiment of the present application, the multiphase flow mixing and conveying system further includes a storage device 13, the storage device 13 is connected to the multiphase flow mixing and conveying device 10 at the end, and the second conveying mechanism 105 of the multiphase flow mixing and conveying device 10 at the end communicates with the storage device 13.
As shown in fig. 4, the multiphase flow mixing and conveying system includes multiphase flow mixing and conveying devices 10 respectively located at a ground, B ground and C ground and connected in series in sequence, and the multiphase flow mixing and conveying device 10 located at C ground is the multiphase flow mixing and conveying device 10 located at the end. The second transfer mechanism 105 of the multiphase flow mixing and transferring device 10 at the place C is communicated with a storage device 13. After being discharged by the multiphase flow mixing and transportation device 10, the multiphase flow mixture can be transported to the storage device 13 through a pipeline for storage.
In the fourth embodiment of the present application, the multiphase flow mixing and transporting system includes a storage device 13, the storage device 13 is connected to at least one multiphase flow mixing and transporting device 10 along the way, the multiphase flow mixing and transporting device 10 connected with the storage device is an intermediate flow dividing and transporting device, and the second transmission mechanism 105 of the intermediate flow dividing and transporting device is respectively connected to the storage device 13 and the next multiphase flow mixing and transporting device 10 adjacent to the intermediate flow dividing and transporting device.
As shown in fig. 5, the multiphase flow mixing and conveying system includes multiphase flow mixing and conveying devices 10 respectively located at a site, a site B and a site C, which are connected in series in sequence, and the multiphase flow mixing and conveying device 10 located at the site B is an intermediate delivery device along the way. The second transmission mechanism 105 of the multiphase flow mixing and conveying device 10 at the B site is connected with the storage device 13, and the second transmission mechanism 105 of the multiphase flow mixing and conveying device 10 at the B site is connected with the first transmission mechanism 104 of the multiphase flow mixing and conveying device 10 at the C site. After the oil-gas mixture is transmitted to the place B through the place A, the multiphase flow mixing transmission device 10 located at the place B can transmit the oil-gas mixture to the storage device 13 and can also continuously transmit the oil-gas mixture to the place C. The storage device 13 at location B may also deliver the oil and gas mixture therein to location C as needed.
In the fifth embodiment of the present application, as shown in fig. 6, the multiphase flow mixing and transportation system includes multiphase flow mixing and transportation devices 10 respectively located at a site, a site B and a site C, which are connected in series in sequence, a storage device 13 is connected to the second transportation mechanism 105 of the multiphase flow mixing and transportation device 10 located at the site B, the second transportation mechanism 105 of the multiphase flow mixing and transportation device 10 located at the site B is connected to the first transportation mechanism 104 of the multiphase flow mixing and transportation device 10 located at the site C, and the storage device 13 is also connected to the second transportation mechanism 105 of the multiphase flow mixing and transportation device 10 located at the site C.
After the oil-gas mixture is transmitted to the place B through the place A, the multiphase flow mixing and transmission device 10 positioned on the place B can transmit the oil-gas mixture to the storage device 13 and can also continuously transmit the oil-gas mixture to the multiphase flow mixing and transmission device 10 on the place C; the multiphase flow commingling device 10 at the C site can transport the oil and gas mixture to the storage device 13 at the C site.
It should be noted that, after the storage device 13 is arranged, when the amount of the oil-gas mixture entering the multiphase flow mixing and transportation system is large, the oil-gas mixture discharged by the multiphase flow mixing and transportation device 10 may be first transported to the storage devices 13 of various places for storage, and when the amount of the oil-gas mixture entering the multiphase flow mixing and transportation system is small, the oil-gas mixture in the storage device 13 is then input to the multiphase flow mixing and transportation system for transportation and distributed according to the needs of various places according to the needs of the end user, which facilitates flexible allocation of resources. In the storage device 13, a pressure adjusting device may be provided, and when the oil-gas mixture in the storage device 13 needs to be delivered into the multiphase flow mixed delivery system, the pressure in the storage device 13 may be increased first to improve the delivery efficiency of the oil-gas mixture.
It is understood that whether the storage device 13 is disposed at the end of the multiphase flow mixing and conveying system or along the way, and the number of the storage devices 13 disposed at each place can be adjusted and determined according to actual conditions.
In the sixth embodiment of the present application, the second transfer mechanism 105 of the at least one multiphase flow mixing transportation device 10 has a first transfer line 1051d for transferring oil and a second transfer line 1051e for transferring gas, and the second output mechanism 105 of the at least one multiphase flow mixing transportation device 10 is connected to the storage device 13.
As shown in fig. 7, the multiphase flow mixing and conveying system includes multiphase flow mixing and conveying devices 10 respectively located at a site, B site and C site and connected in series in sequence. Referring to fig. 7 and 8, in the multiphase flow mixing transportation device 10, the first transportation mechanism 104 includes a first transportation line set 1041 connecting the first tank 101 and the second tank 102, and a first transportation control valve 1042 disposed on the first transportation line set 1041. The second transfer mechanism 105 includes a second transfer line set 1051 communicating the first tank 101 and the second tank 102, and a second transfer control valve 1052 disposed on the second transfer line set 1051.
The first transmission line set 1041 includes a first confluence line 1041a, a first branch line 1041b, and a second branch line 1041c, the first branch line 1041b connects the first tank 101 and the first confluence line 1041a, and the second branch line 1041c connects the second tank 102 and the first confluence line 1041 a.
Second transfer line set 1051 includes second confluence line 1051a, third confluence line 1051b, and fourth confluence line 1051c, third confluence line 1051b connects first tank 101 and second confluence line 1051a, fourth confluence line 1051c connects second tank 102 and second confluence line 1041 a; a first transfer control valve 1042 is disposed on the first branch line 1041b and the second branch line 1041c, a second transfer control valve 1052 is disposed on the third branch line 1051b and the fourth branch line 1051c, and the first transfer control valve 1042 and the second transfer control valve 1052 may be check valves.
Referring to fig. 7 and 8, in the multiphase flow mixing transportation device 10 located at the a ground and the C ground, one end of the second transportation line set 1051 is communicated with the first tank 101 and the second tank 102, the other end of the second transportation line set 1051 is provided with a first transportation pipeline 1051d and a second transportation pipeline 1051e, the first transportation pipeline 1051d is provided with a first branch transportation valve X, and the second transportation pipeline 1051e is provided with a second branch transportation valve Y.
In the multiphase flow mixed transportation system, the second transmission pipeline group of the previous multiphase flow mixed transportation device is connected with the first transmission pipeline group of the adjacent next multiphase flow mixed transportation device. Referring to fig. 7 and 8, the second transmission line set 1051 of the multiphase flow mixing and transporting device 10 at the a site is connected to the first transmission line set 1041 of the multiphase flow mixing and transporting device 10 at the B site, and in the multiphase flow mixing and transporting device at the a site, the first transmission line 1051d of the second transmission line set 1051 is connected to the first confluence line 1041a of the first transmission line set 1041 of the multiphase flow mixing and transporting device 10 at the B site; the second transfer line group 1051 of the multiphase flow mixing and transporting device 10 at the B site is connected to the first transfer line group 1041 of the multiphase flow mixing and transporting device 10 at the C site, and in the multiphase flow mixing and transporting device at the B site, the first transfer line 1051d of the second transfer line group 1051 is connected to the first confluence line 1041a of the first transfer line group 1041 of the multiphase flow mixing and transporting device 10 at the C site.
When the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, negative pressure is formed in the first tank 101; the first transfer control valve 1042 on the first branch line 1041b is opened, the second transfer control valve 1052 on the third branch line 1051b is closed, and the multiphase flow mixture enters the first tank 101 through the first transfer port 1042a, where the first transfer port 1042a is a communication port of the first transfer mechanism 104 on the first tank 101.
After the multiphase flow mixture is drawn into the first tank 101, the gas and liquid are separated, with the gas above the liquid level. The liquid in the first tank 101 flows to the second tank 102 under the driving of the reversing mechanism 103, the liquid level in the second tank 102 rises, and the gas on the liquid level is compressed; the first transfer control valve 1042 on the second branch line 1041c is closed, the second transfer control valve 1052 on the fourth branch line 1051c is opened, the first transfer valve X is closed, the second transfer valve Y is opened, and the compressed gas in the second tank 102 is discharged from the second transfer line 1051 e. After all the gas in the second tank 102 is discharged, the first transfer valve X is opened, the second transfer valve Y is closed, and the liquid in the second tank 102 is discharged from the first transfer line 1051 d.
After the reversing mechanism 103 reverses, the liquid is driven to flow from the second tank 102 to the first tank 101, negative pressure is formed in the second tank 102, the multiphase flow mixture is sucked into the second tank 102 by the first conveying mechanism 104, and the liquid and the gas are respectively discharged from the first conveying pipeline 1051d and the second conveying pipeline 1051e of the second conveying mechanism 105 in the first tank 101.
As shown in fig. 8, the control mechanism 212 is in electrical communication with the first delivery valve X and the second delivery valve Y of the second transmission mechanism 105, so as to realize automatic control of the first delivery valve X and the second delivery valve Y, and improve the delivery efficiency of the multiphase flow mixing and delivering apparatus 10.
In the embodiment of the present application, the multiphase flow mixture is an oil-gas mixture, the multiphase flow mixing transportation device 10 sucks the oil-gas mixture from the first transportation mechanism 104, and discharges liquid and gas from the first transportation line 1051d and the second transportation line 1051e of the second transportation mechanism 105, respectively, the first transportation line 1051d is a line for transporting oil, and the second transportation line 1051e is a line for transporting gas.
By arranging the multiphase flow mixing transportation device 10 with two transportation pipelines in the multiphase flow mixing transportation system, gas and liquid in the oil-gas mixture can be separated and transported.
Referring to fig. 7 and 8, the multiphase flow mixing transportation system includes a first storage device 131 and a second storage device 132 for storing oil and gas, respectively. The oil-gas mixture firstly enters the multiphase flow mixing transportation device 10 at the A site, after the multiphase flow mixing transportation device 10 is separated, the gas can be output from the second transportation pipeline 1051e and transported to the second storage device 132 at the A site, and the oil can be output from the first transportation pipeline 1051d and transported to the B site. After the multiphase flow mixing transportation device 10 at the B site sucks the oil, the pressurized oil can be transported to the C site, or the pressurized oil can be transported to the first storage device 131 at the B site. After the multiphase flow mixing transportation device 10 at the place C sucks the oil, the oil can be transported to the first storage device 131 at the place C.
When the oil-gas mixture enters the multiphase flow mixing transportation device 10 at the a site, the multiphase flow mixing transportation device 10 at the a site may not separate and transport the oil-gas mixture, that is, the first branch transportation valve X is kept open, the second branch transportation valve Y is kept closed, the oil-gas mixture is transported to the C site (i.e., the end of the multiphase flow mixing transportation system), then the multiphase flow mixing transportation device 10 at the C site separates the oil and the gas, and the oil and the gas are respectively transported to the first storage device 131 and the second storage device 132 at the end.
As shown in fig. 7, in the sixth embodiment of the present application, by providing the multiphase flow mixing and transportation device 10 with an oil-gas separation and transportation function in each multiphase flow mixing and transportation device 10, when an oil-gas mixture is input in the multiphase flow mixing and transportation system, the multiphase flow mixing and transportation devices 10 located in each region can separately transport gas and liquid to the local first storage device 131 or second storage device 132 according to requirements, or transport the oil-gas mixture to the multiphase flow mixing and transportation device 10 at the end, and separate and transport the oil-gas by the multiphase flow mixing and transportation device 10 at the end, so that the application of the multiphase flow mixing and transportation system becomes wider and more flexible.
It should be noted that, in the multiphase flow mixing and transporting system, the arrangement and combination of the multiphase flow mixing and transporting device 10, the first storage device 131, and the second storage device 132 with the oil-gas separation and transportation function can be flexibly adjusted according to actual situations and requirements, and are not limited to the manner provided in the embodiments of the present application.
In the seventh embodiment of the present application, the former multiphase flow mixing and transporting device 10 of the two adjacent multiphase flow mixing and transporting devices 10 transports oil or gas to the next multiphase flow mixing and transporting device in time sequence.
As shown in fig. 7, the multiphase flow mixing and conveying system includes multiphase flow mixing and conveying devices 10 respectively located at a site, B site and C site and connected in series in sequence.
When multiphase sequential flow is input into the multiphase flow mixing and conveying system, namely oil and gas are input according to different time periods, after the oil and the gas are input into the multiphase flow mixing and conveying system in sequence, pressurization is realized through pumped liquid circulation between two tank bodies in one multiphase flow mixing and conveying device 10, and then the oil and the gas are transmitted to the next multiphase flow mixing and conveying device 10; after being pressurized step by the multiphase flow mixing transportation devices 10, the gas or the liquid is transported to a destination, so that the long-distance pressurization transportation of the oil and the gas is realized. Because only one transmission pipeline is needed to be communicated among the multiphase flow mixed transportation devices, the oil-gas sequential flow can be transported, the utilization rate of the pipelines is improved, and the cost is saved.
Specifically, when gas is input at the input end of the multi-flow mixing and conveying device 10 located at the place a (i.e. gas is input in the first conveying mechanism 104), the first tank 101 in the first multi-phase flow mixing and conveying device 110 in each place is filled with the circulating liquid in advance, and the liquid level in the second tank 102 is located at the bottom dead center.
In the multiphase flow mixing and transportation device 10 at the site a, gas enters the first input mechanism 104 through the conveying pipeline 14, when the reversing mechanism 103 drives liquid to flow from the first tank 101 to the second tank 102, negative pressure is formed in the first tank 101, and the first tank 101 sucks the gas through the first transmission mechanism 104. The liquid in the first tank 101 flows to the second tank 102 under the driving of the reversing mechanism 103, the liquid level in the second tank 102 rises, the gas on the surface is compressed, and the gas in the second tank 102 is discharged through the second conveying mechanism 105.
When the liquid level in the second tank 102 rises to the top dead center and the liquid level in the first tank 101 falls to the bottom dead center, the reversing mechanism 103 reverses to drive the liquid to flow from the second tank 102 to the first tank 101, negative pressure is formed in the second tank 102, the second tank 102 sucks gas through the first transmission mechanism 104, the liquid in the second tank 102 flows to the first tank 101 under the driving of the reversing mechanism 103, the gas on the surface is compressed after the liquid level in the first tank 101 rises, and the gas in the first tank 101 is discharged through the second transmission mechanism 105.
Repeating the above steps, the multiphase flow mixing and transportation device 0 at the site a continuously sucks gas from the first transportation mechanism 104, discharges the pressurized gas from the second transportation mechanism 105, and then transports the gas to the site B.
After the multiphase flow mixing and transportation device 10 at the location B sucks gas through the first transportation mechanism 104, the gas can be transported to the location C and then transported to an end user (not shown in a pipeline diagram connecting the end user) through pressurization of the multiphase flow mixing and transportation device 10 at the location C. The multiphase flow mixing transportation device 10 at the C site can also transport the gas to the second storage device 132 at the C site for storage.
If the liquid enters the multiphase flow mixing and conveying system, two tanks in each multiphase flow mixing and conveying device 10 are filled with the liquid in advance. In the multiphase flow mixing and transportation device 10 at the site a, liquid enters the first input mechanism 104 through the conveying pipeline 14, when the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, negative pressure is formed in the first tank 101, and the first tank 101 sucks the liquid through the first transmission mechanism 104. The liquid in the first tank 101 flows to the second tank 102 under the driving of the reversing mechanism 103, and the liquid in the second tank 102 is discharged through the second conveying mechanism 105.
After the reversing mechanism 103 reverses, liquid is driven to flow from the second tank 102 to the first tank 101, negative pressure is formed in the second tank 102, the second tank 102 sucks in the liquid through the first conveying mechanism 104, the liquid in the second tank 102 flows to the first tank 101 under the driving of the reversing mechanism 103, and after the liquid level in the first tank 101 rises, the gas-liquid in the first tank 101 is discharged through the second conveying mechanism 105.
Repeating the above steps, the multiphase flow mixing and transportation device 10 at the site a continuously sucks the liquid from the first transportation mechanism 104, discharges the liquid to the second transportation mechanism 105 and then transports the liquid to the site B.
After the multiphase flow mixing and transportation device 10 at the location B sucks in the liquid, the liquid can be transported to the first storage device 131 at the location B for storage, or the liquid can be transported to the location C and then transported to an end user (not shown in a pipeline diagram connecting the end user) by the multiphase flow mixing and transportation device 10 at the location C.
In the embodiment of the present application, the storage device 13 may be an oil storage device for storing oil, or a gas storage device for storing gas, or a gas terminal, or an oil terminal. It is understood that the oil storage device includes a crude oil depot and the gas storage device includes a natural gas station.
It should be noted that, in the multiphase flow mixed transportation system, a control system (not shown in the figure) in electrical communication with each multiphase flow mixed transportation device 10 may be provided, and the control system may control the reversing, the distributing and transporting, and the like in each multiphase flow mixed transportation device according to different practical application scenarios and requirements, so as to realize the macro control of the whole multiphase flow mixed transportation system and improve the transportation efficiency of the multiphase flow mixed transportation system.
The multiphase flow mixed transportation system provided by the embodiment of the present application is described in detail above, and the principle and the embodiment of the present invention are explained herein by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A multiphase flow commingling flow system, comprising:
the multiphase flow mixing and conveying device comprises a first tank body, a second tank body, a reversing mechanism communicated with the first tank body and the second tank body, a first conveying mechanism communicated with the first tank body and the second tank body and used for inputting materials, and a second conveying mechanism communicated with the first tank body and the second tank body and used for outputting materials, wherein the reversing mechanism drives liquid in the first tank body and the second tank body to reciprocate, so that the first tank body and the second tank body alternately form a vacuum suction cavity and/or a compression discharge cavity;
the second transmission mechanism of one multiphase flow mixing and conveying device in two adjacent multiphase flow mixing and conveying devices is communicated with the first transmission mechanism of the other multiphase flow mixing and conveying device.
2. A multiphase flow mixing transportation system according to claim 1, wherein a plurality of multiphase flow mixing transportation devices constitute a pressurization facility along the way of oil and gas transportation, and each multiphase flow mixing transportation device is sequentially connected in series, or a part of the multiphase flow mixing transportation devices are connected in parallel and a part of the multiphase flow mixing transportation devices are connected in series.
3. A multiphase flow mixing and conveying system as recited in claim 2, further comprising a storage device connected to the multiphase flow mixing and conveying device at the end, wherein the second conveying mechanism of the multiphase flow mixing and conveying device at the end is communicated with the storage device.
4. A multiphase flow mixing and conveying system according to claim 2, further comprising a storage device connected to at least any one of the multiphase flow mixing and conveying devices along the way, wherein the multiphase flow mixing and conveying device connected with the storage device constitutes an intermediate flow dividing and conveying device, and the second conveying mechanism of the intermediate flow dividing and conveying device is respectively connected with the storage device and a next multiphase flow mixing and conveying device adjacent to the intermediate flow dividing and conveying device.
5. A multiphase flow commingling and transportation system of claim 1, further comprising a storage device, wherein the second output mechanism of at least one multiphase flow commingling and transportation device is connected to the storage device.
6. A multiphase flow commingling and transportation system of claim 5 wherein said second transportation means of at least one of said multiphase flow commingling and transportation devices has a first transportation line for transporting oil and a second transportation line for transporting gas.
7. The multiphase flow mixing transportation system of claim 5, wherein a previous multiphase flow mixing transportation device in two adjacent multiphase flow mixing transportation devices transports oil or gas to a next multiphase flow mixing transportation device according to time sequence.
8. A multiphase flow commingling and transportation system of any one of claims 1 to 7, wherein said storage device is at least one of an oil storage device for storing oil, a gas storage device for storing gas, a gas terminal and an oil terminal.
9. A multiphase flow commingling and conveying system of claim 8, wherein a pressure regulating device is disposed on said storage device, and said pressure regulating device is used for regulating the pressure in said storage device.
10. A multiphase flow mixing transportation system according to any one of claims 1-7, wherein the first transportation mechanism comprises a first transportation line group communicating the first tank and the second tank, and a first transportation control valve provided on the first line group;
the second transmission mechanism comprises a second pipeline group for communicating the first tank body and the second tank body and a second transmission control valve arranged on the second transmission pipeline group;
and the second transmission pipeline group of the previous multiphase flow mixed transmission device is connected with the first transmission pipeline group of the next adjacent multiphase flow mixed transmission device.
11. A multiphase flow mixing transportation system according to any one of claims 1-7, wherein the first multiphase flow mixing transportation device and the second multiphase flow mixing transportation device further comprise a detection mechanism and a control mechanism;
the detection mechanism is arranged on the first tank body and the second tank body and is in telecommunication connection with the reversing mechanism;
the control mechanism is in telecommunication connection with the first transmission mechanism, the second transmission mechanism, the reversing mechanism and the detection mechanism.
12. A system according to claim 11, further comprising a control system in electrical communication with each of the multiphase flow mixing devices.
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