CN114278862A

CN114278862A - Multiphase flow mixed transportation method, multiphase flow mixed transportation device and application system

Info

Publication number: CN114278862A
Application number: CN202011638771.5A
Authority: CN
Inventors: 官天日; 傅浩
Original assignee: Shandong Guanfu Energy Technology Co ltd; Guangdong Guanfu Energy Technology Co ltd
Current assignee: Shandong Guanfu Energy Technology Co ltd; Guangdong Guanfu Energy Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-04-05
Also published as: WO2022143589A1

Abstract

The application discloses a multiphase flow mixing and conveying method, a multiphase flow mixing and conveying device and a multiphase flow mixing and conveying application system.

Description

Multiphase flow mixed transportation method, multiphase flow mixed transportation device and application system

Technical Field

The invention relates to the technical field of gas-liquid mixed transportation, in particular to a multiphase flow mixed transportation method, a multiphase flow mixed transportation device and a multiphase flow mixed transportation application system.

Background

The traditional process for oil and gas extraction and transportation in the oil field is to separate oil, gas and water and then respectively transport the separated oil, gas and water by using an oil pump, a water pump and a compressor, and has the disadvantages of complex process flow, high cost and difficult maintenance of equipment. The multiphase flow mixed transportation device does not need to be provided with separation equipment, so that the cost is saved, the structure is simplified, and the multiphase flow mixed transportation device is more and more widely applied to oil-gas transmission.

Because the mixture of gas and liquid in the multiphase flow mixture to be conveyed is not uniform, namely the content of the gas and the liquid in the multiphase flow is changed along with time, when the gas content in the gas-liquid mixture sucked into the multiphase flow mixing and conveying device is larger, or all the fluid sucked into the multiphase flow mixing and conveying device at a certain moment is gas, the pressure in a tank body sucked into the multiphase flow mixture to be conveyed in the multiphase flow mixing and conveying device is increased instantaneously, and the suction of the multiphase flow mixture is influenced; on the other hand, if the pressure fluctuation in the tank body is too large, the tank body is damaged, and the normal and safe operation of the multiphase flow mixed conveying device is influenced.

Disclosure of Invention

The embodiment of the invention provides a multiphase flow mixing and conveying method, a multiphase flow mixing and conveying device and a multiphase flow mixing and conveying application system, and aims to solve the technical problem that the normal and safe operation of the device is influenced by overlarge air pressure fluctuation in a tank body in the conventional multiphase flow mixing and conveying device.

In a first aspect, the present invention provides a multiphase flow mixing transportation method, including:

detecting whether the multiphase flow mixture to be conveyed is sucked into any one of the first tank body and the second tank body;

if the multiphase flow mixture to be conveyed is sucked into one of the first tank body and the second tank body, conveying the liquid sucked into the tank body with the multiphase flow mixture to be conveyed into the tank body which is not sucked with the multiphase flow mixture to be conveyed, compressing the gas in the tank body by the liquid entering the tank body which is not sucked with the multiphase flow mixture to be conveyed and discharging the multiphase flow mixture in the tank body; and discharging the gas sucked into the tank body to be conveyed with the multiphase flow mixture.

Further, in the step of discharging the gas sucked into the tank body where the multiphase flow mixture is to be delivered, the method includes:

judging whether a preset distribution condition is reached;

and if the distribution condition is met, opening a distribution control valve on a distribution pipeline communicated with the tank body sucked with the multiphase flow mixture to be conveyed, and discharging the gas in the tank body.

Further, the step of judging whether the distribution condition is reached includes:

acquiring the air pressure value in the tank body sucked with the multiphase flow mixture to be conveyed and the air pressure value on the distribution and transmission pipeline;

and if the air pressure value in the tank body is greater than the air pressure value on the distribution pipeline, judging that the distribution condition is reached.

Further, in the step of judging whether the preset distribution condition is reached, the method includes:

detecting the opening and closing state of a feeding valve connected with a tank body sucked with the multiphase flow mixture to be conveyed;

if the feeding valve is in an open state, acquiring an air pressure value in the tank body;

judging whether the air pressure value is greater than a first air pressure preset value or not;

and if the air pressure value is greater than the first air pressure preset value, judging that the sub-transmission condition is reached.

detecting the flow rate of the multiphase flow mixture to be conveyed sucked into the tank body;

judging whether the flow is larger than a preset flow value or not;

and if the flow is larger than a preset flow value, judging that the sub-transmission condition is reached.

Further, the multiphase flow mixing and conveying method further comprises the following steps:

acquiring the air pressure value in the tank body sucked with the multiphase flow mixture to be conveyed;

judging whether the air pressure value is smaller than a second air pressure preset value or not;

and if the air pressure value is smaller than a second air pressure preset value, closing the sub-delivery control valve on the sub-delivery pipeline.

In a second aspect, the present application provides a multiphase flow mixing and conveying device, including:

a first tank;

a second tank;

the reversing mechanism drives the 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, and the continuous mixing and conveying of liquid, gas or a gas-liquid mixture is realized;

the output mechanism is communicated with any one of the first tank body and the second tank body and is used for conveying gas, liquid or gas-liquid mixture discharged from the first tank body or the second tank body;

the gas distribution and transportation mechanism comprises a gas distribution and transportation pipeline for discharging gas, and the gas distribution and transportation pipeline is communicated with any one of the first tank body and the second tank body.

Furthermore, a distribution control valve is arranged on the distribution pipeline and used for controlling the gas in the tank body to be conveyed into the distribution pipeline when any one of the first tank body or the second tank body sucks the multiphase flow mixture.

Further, the multiphase flow mixing and conveying device also comprises an air pressure detection mechanism; the first tank body and the second tank body are respectively internally provided with the air pressure detection mechanism, and the air pressure detection mechanism and the separate transmission control valve are in linkage control.

In a third aspect, the present application provides a multiphase flow mixed transportation application system, including the multiphase flow mixed transportation devices provided in the embodiments of the present application, each of the multiphase flow mixed transportation devices is used for distributing gas and multiphase flow mixture.

The multiphase flow mixing and conveying method, the multiphase flow mixing and conveying device and the multiphase flow mixing and conveying application system are characterized in that the gas sucked into the tank body to be conveyed with the multiphase flow mixture is discharged through the distribution mechanism in the process of conveying the multiphase flow mixture by arranging the distribution mechanism communicated with the first tank body and the second tank body, so that large pressure fluctuation generated in the tank body is avoided, and the safe use of the multiphase flow mixing and conveying device and the efficiency of the multiphase flow mixing and conveying are ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be 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 flow chart of a multiphase flow mixing and conveying method provided in an embodiment of the present application;

FIG. 2 is a schematic flow chart of step S2 in FIG. 1;

FIG. 3 is a schematic flow chart of step S2.1 in FIG. 2;

FIG. 4 is another schematic flow chart of step S2.1 in FIG. 2;

FIG. 5 is another schematic flow chart of step S2.1 in FIG. 2;

FIG. 6 is another schematic flow chart of step S3 in FIG. 1;

fig. 7 is a schematic structural diagram of a multiphase flow mixing and conveying device provided in an embodiment of the present application.

In the figure, a multiphase flow commingling and conveying mechanism 10; a first tank 101; a second tank 102; a reversing mechanism 103; a power pump 1030; a first line set 1031; a second pipe set 1032; branch line 1031 a; branch line 1031 b; branch line 1031 c; branch line 1032 a; branch line 1032 b; a first diverter valve 1033 a; a second diverter valve 1033 b; an input mechanism 104; a feed line 104 a; a first sub-feed line 104 b; a second sub-feed line 104 c; an output mechanism 105; a first inlet 1041; a second inlet 1042; a first check valve 1061; a second check valve 1062; a third check valve 1063; a fourth check valve 1064; a first outlet 1051; a second outlet 1052; a separate delivery mechanism 107; a first branch line 1071; a second distribution line 1072; a first transfer control valve 1073; a second transfer control valve 1074; a first transfer port 1075; a second transfer port 1076; a detection mechanism 211; a first sensor 2101; a second sensor 2102; a control mechanism 212.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present disclosure, 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. Unless otherwise specified, the directions of the present invention are not strictly parallel or perpendicular, and the like, as long as the corresponding structures can achieve the corresponding objects.

Referring to fig. 1, a multiphase flow mixing and transporting method, a multiphase flow mixing and transporting device and a multiphase flow mixing and transporting system according to an embodiment of the present invention are respectively described in detail below.

In a first aspect, the present application provides a multiphase flow mixing transportation method, as shown in fig. 1, including the following steps:

s1, detecting whether the multiphase flow mixture to be conveyed is sucked into any one of the first tank body and the second tank body;

s2, if the multiphase flow mixture to be conveyed is sucked into one of the first tank body and the second tank body, conveying the liquid sucked into the tank body with the multiphase flow mixture to be conveyed into the tank body without the multiphase flow mixture to be conveyed, compressing the gas in the tank body by the liquid entering the tank body without the multiphase flow mixture to be conveyed and discharging the multiphase flow mixture in the tank body; and discharging the gas sucked into the tank body to be conveyed with the multiphase flow mixture.

First, it is detected whether the first tank sucks the multiphase flow mixture into the tank body or the second tank sucks the multiphase flow mixture into the tank body. The way of sucking the multiphase flow mixture to be conveyed can be to adopt other structures to provide negative pressure for sucking, or to firstly make the first tank convey liquid to the second tank to generate negative pressure for sucking.

If the multiphase flow mixture is sucked by the first tank body, the first tank body is a tank body into which the multiphase flow mixture to be conveyed is sucked, the second tank body is a tank body into which the multiphase flow mixture to be conveyed is not sucked, the first tank body forms a vacuum suction cavity, and the second tank body forms a compression discharge cavity; the first tank body conveys the liquid in the tank body to the second tank body, the liquid level in the second tank body rises, the gas above the liquid level is compressed, and the compressed gas and the multiphase flow mixture are discharged from the second tank body; meanwhile, after the multiphase flow mixture sucked by the first tank is sucked into the first tank, gas and liquid are separated, the gas is positioned on the surface of the liquid, and the gas in the first tank is discharged from the first tank.

If the multiphase flow mixture is sucked by the second tank body, the second tank body is a tank body into which the multiphase flow mixture to be conveyed is sucked, the first tank body is a tank body into which the multiphase flow mixture to be conveyed is not sucked, the second tank body forms a vacuum suction cavity, and the first tank body forms a compression discharge cavity; the second tank body conveys the liquid in the tank body to the first tank body, the liquid level in the first tank body rises, the gas above the liquid level is compressed, and the compressed gas and the multiphase flow mixture are discharged from the first tank body; meanwhile, after the multiphase flow mixture sucked by the second tank is sucked into the second tank, gas and liquid are separated, the gas is positioned on the surface of the liquid, and the gas in the second tank is discharged from the second tank.

In the process of conveying the multiphase flow mixture, the tank body sucked with the multiphase flow mixture to be conveyed conveys liquid into the tank body not sucked with the multiphase flow mixture to be conveyed, and simultaneously, gas sucked into the tank body to be conveyed is also discharged from the tank body, so that the phenomenon that the suction of the multiphase flow mixture is interrupted due to over-small negative pressure or even no negative pressure of the tank body when more gas is sucked into the multiphase flow mixture sucked into the tank body at a certain moment is avoided, and the conveying efficiency of the multiphase flow mixture is ensured; on the other hand, the risk that the tank body sucked with the multiphase flow mixture to be conveyed is damaged due to overlarge instantaneous pressure is reduced, and the safe operation of the equipment is ensured. The multiphase flow mixture can be an oil-gas mixture or an oil-gas-water mixture.

Fig. 7 is a schematic structural diagram of a multiphase flow mixing and conveying apparatus for implementing the multiphase flow mixing and conveying method provided by the present application, and the multiphase flow mixing and conveying method provided by the present application is further described below with reference to fig. 7. It should be noted that the multiphase flow mixing and conveying apparatus shown in fig. 7 is only used as an example to describe the multiphase flow mixing and conveying method in the present application. The multiphase flow mixing and delivering device for mixing and delivering the multiphase flow mixture is not limited to the structure shown in fig. 7.

As shown in fig. 7, the multiphase flow mixing and delivering device includes a multiphase flow mixing and delivering mechanism 10, an output mechanism 105, and a branch and delivering mechanism 107. The multiphase flow mixing and conveying mechanism 10 comprises a first tank 101, a second tank 102 and a reversing mechanism 103. The input mechanism 104 includes a feeding line 104a, a first sub-feeding line 104b, and a second sub-feeding line 104c, the first sub-feeding line 104b is communicated with the first tank 101, and the second sub-feeding line 104c is communicated with the second tank 102. The first sub-feeding line 104b is provided with a second check valve 1062, the second sub-feeding line 104c is provided with a third check valve 1063, and the second check valve 1062 and the third check valve 1063 are feeding valves to control the connection and disconnection between the first sub-feeding line 104b and the second sub-feeding line 104 c. It should be noted that the material inlet valve may also be another type of valve, and when the material inlet valve is a one-way valve, the structure may be relatively simple.

The multiphase flow mixture is drawn into the first tank 101 through the first inlet 1041, or the multiphase flow mixture is drawn into the second tank 102 through the second inlet 1042. The first inlet 1041 is a communication port of the input mechanism 104 in the first tank 101, and the second inlet 1042 is a communication port of the input mechanism 104 in the second tank 102.

The distributing and conveying mechanism 107 comprises a first distributing and conveying pipeline 1071 and a second distributing and conveying pipeline 1072, a communication port of the distributing and conveying mechanism 107 on the first tank body 101 is a first distributing and conveying port 1075, a communication port of the distributing and conveying mechanism 107 on the second tank body is a second distributing and conveying port 1076, a first distributing and conveying control valve 1073 is arranged on the first distributing and conveying pipeline 1071, and a second distributing and conveying control valve 1074 is arranged on the second distributing and conveying pipeline 1072.

It should be noted that, in the feeding line 104a, a flow rate detection mechanism, such as a flow meter (not shown in the figure), may be provided to meter the multiphase flow mixture entering the multiphase flow mixing and transportation device. The flow detection mechanism can be in linkage control with the first delivery control valve 1073 and the second delivery control valve 1074 so as to adjust output according to the multiphase flow mixture entering the multiphase flow mixing and conveying device and improve the conveying efficiency of the multiphase flow mixing and conveying device.

The output mechanism 105 is communicated with the first tank 101 and the second tank 102, the first tank 101 is provided with a first outlet 1051, the second tank 102 is provided with a second outlet 1052, the first outlet 1051 is a communication port of the output mechanism 105 on the first tank, and the second outlet 1052 is a communication port of the output mechanism 105 on the second tank; the output mechanism 105 is provided with a first check valve 1061 and a fourth check valve 1064, the first check valve 1061 controls the opening and closing of the first outlet 1051, and the fourth check valve 1064 controls the opening and closing of the second outlet 1052.

A communication line, a power pump and at least one valve; the one end of intercommunication pipeline with first jar of body intercommunication, the other end with the second jar of body intercommunication, the power pump with the valve all set up in on the intercommunication pipeline.

In the reversing mechanism 103,

branch lines

1031a, 1031c and 1031b constitute a first line group 1031 for flowing liquid from the first tank 101 to the second tank 102,

branch lines

1032b, 1031c and 1032a constitute a second line group 1032 for flowing liquid from the second tank 102 to the first tank 101, one ends of the first line group 1031 and the second line group 1032 are communicated with the first tank 101, and the other ends are communicated with the second tank 102; a power pump 1030 is provided on the branch line 1031c, and the power pump 1030 may drive the liquid from the first tank 101 to the second tank 102, or drive the liquid 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 valve 1033a is opened and the second direction valve 1033b is closed, the liquid in the first tank 101 flows to the second tank 102 through the

branch lines

1031a, 1031c and 1031b under the action of the power pump 1030, the first tank 101 forms a vacuum suction chamber, the second one-way valve 1062 is opened, the first one-way valve 1061 is closed, the multiphase flow mixture is sucked into the first tank 101 through the first inlet 1041, and the first inlet 1041 is a communication port of the input mechanism 104 in 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, the gas on the liquid level is compressed, the third check valve 1063 is closed, the fourth check valve 1064 is opened, and the compressed gas and the gas-liquid mixture in the second tank 102 are discharged from the output mechanism 105. At the same time, the first delivery control valve 1073 is opened, and the gas in the first tank 101 is discharged from the first delivery port 1075 to the delivery mechanism 107.

As shown in fig. 7, the multiphase flow mixing and delivering device comprises a detection mechanism 211, the detection mechanism 211 comprises a first sensor 2101 arranged on a first tank body and a second sensor 2102 arranged on a second tank body, and the first sensor 2101 and the second sensor 2102 are both in electrical communication 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.

When the reversing mechanism 103 reverses, the first reversing valve 1033a is closed, the second reversing valve 1033b is opened, the liquid in the second tank 102 flows to the first tank 101 through the

branch lines

1032b, 1031c and 1032a under the action of the power pump 1030, the second tank 102 forms a vacuum suction chamber, the third one-way valve 1063 is opened, the fourth one-way valve 1064 is closed, the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042, and the second inlet 1042 is a communication port of the input mechanism 104 in the second tank 102.

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, and the gas on the liquid level is compressed; the second check valve 1062 is closed, the first check valve 1061 is opened, and the compressed gas and gas-liquid mixture in the first tank 101 is discharged from the output mechanism 105. At the same time, the second delivery control valve 1074 opens, and the gas in the second tank 102 is discharged from the second delivery port 1076 to the delivery mechanism 107.

Through set up in output mechanism 105 of multiphase flow defeated device and divide defeated mechanism 107, when making first jar of body 101 or second jar of body 102 be in the vacuum suction state, the internal gas of jar can be discharged respectively in first branch transmission line 1071 and the second branch transmission line 1072, the internal pressure of jar has been reduced, the potential safety hazard that the internal too big pressure of jar caused has been avoided, the safe operation of device has been guaranteed, simultaneously because divide defeated mechanism can play the effect of branch defeated gas, the conveying efficiency of multiphase flow mixture has been improved.

The first delivery control valve 1073 and the second delivery control valve 1074 may be pneumatic valves, electromagnetic valves, or electric valves. The types of the first and second

delivery control valves

1073 and 1074 may be determined according to practical use conditions, cost, and the like, and are not limited herein.

In some embodiments of the present application, as shown in fig. 2, step S2 includes the following steps:

s2.1, judging whether a separate transmission condition is met;

and S2.2, if the distribution condition is met, opening a distribution control valve on a distribution pipeline communicated with the tank body sucked with the multiphase flow mixture to be conveyed, and discharging gas in the tank body.

When the split delivery is carried out, the gas sucked into the tank body to be delivered with the multiphase flow mixture is discharged through the delivery mechanism, and the tank body sucks the multiphase flow mixture through negative pressure, so that the gas delivery is required only when the gas pressure sucked into the tank body to be delivered with the multiphase flow mixture has large fluctuation at a certain moment, namely whether the gas delivery condition is met or not is required to be judged before the gas delivery is carried out. And if the condition of the distribution and the transportation is met, opening a distribution and transportation control valve on a distribution and transportation pipeline communicated with the tank body sucked with the multiphase flow mixture to be transported, and discharging the gas in the tank body.

Specifically, if the first tank is a tank which is sucked with the multiphase flow mixture to be conveyed, the first delivery control valve on the first delivery pipeline communicated with the first tank is opened, so that the gas in the first tank is discharged to the first delivery pipeline.

And if the second tank body is a tank body which is sucked with the multiphase flow mixture to be conveyed, opening a second conveying control valve on a second conveying pipeline communicated with the second tank body, and discharging the gas in the second tank body to the second conveying pipeline.

It should be noted that, whether the condition of the delivery is met or not may be determined according to whether the air pressure in the first tank or the second tank is greater than the air pressure on the delivery line or not, whether the air pressure in the first tank or the second tank is greater than a preset air pressure value or not, and whether the flow rate at which the multiphase flow mixture to be delivered is sucked into the first tank or the second tank is greater than a preset flow rate value or not.

In some embodiments of the present application, as shown in fig. 3, step S2.1 includes the following steps:

s2.11a, acquiring the air pressure value of the tank body sucked with the multiphase flow mixture to be conveyed and the air pressure value on the distribution and transmission pipeline;

s2.12a, if the air pressure value in the tank body is larger than the air pressure value on the distribution and transmission pipeline, judging that the distribution and transmission condition is achieved.

If a feeding valve on a feeding pipeline communicated with the first tank body is in an open state, the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the second tank body is a tank body not sucked with the multiphase flow mixture to be conveyed; detecting the air pressure in the first tank body and the air pressure on the distribution pipeline, and comparing the air pressure in the first tank body and the air pressure on the distribution pipeline; if the air pressure in the first tank body is larger than the air pressure value on the distribution pipeline, a first distribution control valve on the first distribution pipeline communicated with the first tank body is opened, and the gas in the first tank body is discharged to the first distribution pipeline.

If a feeding valve on a feeding pipeline communicated with the second tank body is in an open state, the second tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the first tank body is a tank body not sucked with the multiphase flow mixture to be conveyed; detecting the air pressure in the second tank body and the air pressure on the distribution pipeline in real time, and comparing the air pressure in the second tank body and the air pressure on the distribution pipeline; and if the air pressure in the second tank body is greater than the pressure value on the distribution pipeline, opening a second distribution control valve on the second distribution pipeline communicated with the second tank body, and discharging the gas in the second tank body to the second distribution pipeline.

The opening and closing of the distribution valve on the distribution pipeline are controlled by detecting whether the air pressure value in the first tank body or the second tank body is larger than the air pressure on the distribution pipeline or not, so that the gas can be timely distributed and output when the multiphase flow mixture sucked by the first tank body or the second tank body contains more gas, and the conveying efficiency of the multiphase flow mixture is improved.

The input mechanism 104 is respectively communicated with the first tank 101 and the second tank 102, the input mechanism 104 is provided with a second check valve 1062 and a third check valve 1063, and the multiphase flow mixture is sucked into the first tank 101 through the first inlet 1041, or the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042. The feeding valve on the feeding pipeline communicated with the first tank 101 is the second check valve 1062, and the feeding valve on the feeding pipeline communicated with the second tank 102 is the third check valve 1063. A control mechanism 212 is provided and barometers (not shown) are provided on the first 1071 and second 1072 transfer lines and are in electrical communication with the control mechanism 212 to transmit sensed data to the control mechanism 212. The first tank 101 is provided with a first sensor 2101, the second tank 102 is provided with a second sensor 2102, and the first sensor 2101 and the second sensor 2102 are both in telecommunication connection with the control mechanism 212 so as to transmit detected data to the control mechanism 212.

When the first direction changing valve 1033a and the second direction changing valve 1033b in the direction changing mechanism 103 are opened and closed, the liquid in the first tank 101 flows to the second tank 102 through the

branch lines

1031a, 1031c and 1031b under the action of the power pump 1030, the first tank 101 forms a vacuum suction chamber, the second tank 102 forms a compression discharge chamber, the second one-way valve 1062 is opened, and the third one-way valve 1063 is closed. The control system 212 detects that the second check valve 1062 is in an open state and the third check valve 1063 is in a closed state, and determines that the first tank 101 is a tank into which the multiphase flow mixture is to be sucked, and the multiphase flow mixture is sucked into the first tank 101 through the first inlet 1041.

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, the third check valve 1063 is closed, the fourth check valve 1064 is opened, and the gas-liquid mixture in the second tank 102 is discharged from the output mechanism 105. The barometer detects the air pressure on the first distribution pipeline 1071 in real time and sends the detection data to the control system 212, the first sensor 2101 detects the air pressure in the first tank 101 in real time and sends the data to the control system 212, and the control system 212 compares the two data; if the gas pressure in the first tank 101 is greater than the gas pressure on the first transfer line 1071, the first transfer control valve 1073 on the first transfer line 1071 communicating with the first tank 101 is opened, and the gas in the first tank 101 is discharged to the first transfer line 1071 through the first transfer port 1075.

When the first direction valve 1033a in the direction changing mechanism 103 is closed and the second direction 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, the second tank 102 forms a vacuum suction chamber, the first tank 101 forms a compression discharge chamber, the third check valve 1063 is opened, the second check valve 1062 is closed, the control system 212 detects that the third check valve 1063 is in an open state and the second check valve 1062 is in a closed state, and determines that the second tank 102 is a tank into which the multiphase flow mixture is to be delivered, the first tank 101 is a tank into which the multiphase flow mixture is not to be delivered, and the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042.

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, and the gas on the liquid level is compressed; the second check valve 1062 is closed, the first check valve 1061 is opened, and the gas-liquid mixture in the first tank 101 is discharged from the output mechanism 105. The barometer detects the air pressure on the second distribution pipeline 1072 in real time and sends the detection data to the control system 212, the second sensor 2102 detects the air pressure in the second tank 102 in real time and sends the data to the control system 212, and the control system 212 compares the two data; if the gas pressure in the second tank 102 is greater than the gas pressure on the second transfer line 1072, the second transfer control valve 1074 on the second transfer line 1072 communicating with the second tank 102 is opened and the gas in the second tank 102 is discharged to the first transfer line 1072 through the second transfer port 1076.

In some embodiments of the present application, as shown in fig. 4, step S2.1 comprises the steps of:

s2.11b, detecting the opening and closing state of a feeding valve connected with a tank body sucked with the multiphase flow mixture to be conveyed;

s2.12b, if the feeding valve is in an open state, acquiring an air pressure value in the tank body;

s2.13b, judging whether the air pressure value is larger than a first air pressure preset value or not;

and S2.14b, if the air pressure value is greater than a first air pressure preset value, judging that the preset sub-transmission condition is reached.

The method comprises the steps of firstly detecting the opening and closing state of a feeding valve on a feeding pipeline communicated with a first tank body or the opening and closing state of a feeding valve on a feeding pipeline communicated with a second tank body so as to judge which tank body in the first tank body or the second tank body is the tank body sucked with a multiphase flow mixture to be conveyed.

If a feeding valve on a feeding pipeline communicated with the first tank body is in an open state, the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the second tank body is a tank body not sucked with the multiphase flow mixture to be conveyed; and detecting the air pressure value in the first tank body, comparing the air pressure value with a first air pressure preset value, judging that a branch conveying condition is reached if the detected air pressure value is greater than the preset first air pressure preset value, opening a first branch conveying control valve on a first branch conveying pipeline communicated with the first tank body, and discharging the gas in the first tank body to the first branch conveying pipeline.

If a feeding valve on a feeding pipeline communicated with the second tank body is in an open state, the second tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed; and detecting the air pressure value in the second tank body, comparing the air pressure value with a first air pressure preset value, judging that a sub-delivery condition is reached if the detected air pressure value is greater than the preset first air pressure preset value, opening a second sub-delivery control valve on a second sub-delivery pipeline communicated with the second tank body, and discharging the gas in the second tank body to the second sub-delivery pipeline.

The first air pressure preset value can be obtained by integrating theoretical calculation and test results according to parameters such as volume and material properties of the tank body. The first preset air pressure value must be smaller than the maximum limit air pressure for damaging the tank body, and a sufficient safety margin is reserved to ensure that the tank body cannot be damaged due to overlarge air pressure. In addition, the transportation of the multiphase flow mixture is also considered when the first preset air pressure value is set. It can be understood that if the first preset air pressure value is too large, the opening of the distribution control valve is late, so that the gas is not exhausted in time, and the multiphase flow mixture is prevented from being sucked into the tank body; if the first preset air pressure value is too small, even if the distribution control valve on the distribution mechanism is opened, the gas in the tank body cannot be discharged through the distribution mechanism, namely, the distribution of the gas cannot be carried out. The first preset air pressure value can be adjusted according to actual requirements and the use condition of the multiphase flow mixing and conveying device.

The opening of the distribution control valve corresponding to the first tank body or the second tank body is controlled by detecting whether the air pressure in the first tank body or the second tank body is larger than a first air pressure preset value, so that the influence on the conveying of the multiphase flow mixture caused by the early opening of the distribution control valve is avoided while the pressure in the first tank body or the second tank body is ensured not to be overlarge; in addition, the pressure in the tank body for gas distribution and transportation is increased, and the gas distribution and transportation efficiency is improved.

The first sensor 2101 and the second sensor 2102 are gas pressure sensors for detecting the gas pressures in the first tank 101 and the second tank 102 in real time and sending the detected data to the control mechanism 212. It should be noted that the positions of the first sensor 2101 and the second sensor 2102 may be adjusted according to actual situations, and are not limited to the positions in fig. 7; a first preset air pressure value is preset in the control mechanism 212.

When the reversing mechanism 103 drives the liquid in the first tank 101 to flow to the second tank 102, the first tank 101 is a tank that sucks in a multiphase flow mixture to be conveyed, the first tank 101 sucks in the multiphase flow mixture from the first inlet 1041, after the multiphase flow mixture enters the first tank 101, gas and liquid are separated, and the gas is located above the liquid. The first sensor 2101 detects the gas pressure in the first tank 101 in real time and sends the detected data to the control mechanism 212, and when the control mechanism 212 determines that the gas pressure in the first tank 102 is greater than the first preset gas pressure value, the control mechanism 212 controls the first delivery control valve 1073 to open, and the gas in the first tank 101 is discharged to the first delivery line 1071.

When the reversing mechanism 103 drives the liquid in the second tank 102 to flow to the first tank 101, the second tank 102 is a tank which sucks a multiphase flow mixture to be conveyed, the second tank 102 sucks the multiphase flow mixture from the second inlet 1042, after the multiphase flow mixture enters the second tank 102, gas and liquid are separated, and the gas is located above the liquid; the second sensor 2102 detects the air pressure in the second tank 102 in real time, and sends the detected data to the control mechanism 212, and when the control mechanism 212 determines that the air pressure in the second tank 102 is greater than the first preset air pressure value, the control mechanism 212 controls the second distribution control valve 1074 to open, and the gas in the second tank 102 is discharged to the second distribution pipeline 1072.

In some embodiments of the present application, as shown in fig. 5, step S2.1 comprises the steps of:

s2.11c, detecting the flow of the multiphase flow mixture to be conveyed sucked into the tank body;

s2.12c, judging whether the flow is larger than a preset flow value or not;

and S2.13c, if the flow is larger than a preset flow value, judging that the preset sub-delivery condition is reached.

Firstly, the open-close state of a feeding valve on a feeding pipeline communicated with the first tank body or the open-close state of a feeding valve on a feeding pipeline communicated with the second tank body can be detected so as to judge which tank body in the first tank body or the second tank body is the tank body which is sucked with the multiphase flow mixture to be conveyed.

If a feeding valve on a feeding pipeline communicated with the first tank body is in an open state, the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the second tank body is a tank body not sucked with the multiphase flow mixture to be conveyed; and detecting the flow of the multiphase flow mixture sucked into the first tank body, comparing the flow with a preset flow value, judging that a distribution condition is reached if the detected flow is greater than the preset flow value, opening a first distribution control valve on a first distribution pipeline communicated with the first tank body, and discharging the gas in the first tank body to the first distribution pipeline.

If a feeding valve on a feeding pipeline communicated with the second tank body is in an open state, the second tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed; and detecting the flow of the multiphase flow mixture sucked into the second tank, comparing the flow with a preset flow value, judging that a distribution condition is reached if the detected flow is greater than the preset flow value, starting a second distribution control valve on a second distribution pipeline communicated with the second tank, and discharging the gas in the second tank to the second distribution pipeline.

It should be noted that the preset flow rate value may be the flow rate of the liquid in the first tank driven by the reversing mechanism to flow to the second tank, or the flow rate of the liquid in the second tank driven by the reversing mechanism to flow to the first tank. The preset flow value can be obtained by calculation according to the structure, power and other parameters of the reversing mechanism and can also be obtained by tests.

When the reversing mechanism drives the liquid to flow from the first tank body to the second tank body, the first tank body sucks the multiphase flow mixture, and if the flow rate of the multiphase flow mixture sucked into the first tank body is larger than the flow rate of the liquid flowing into the second tank body, the multiphase flow mixture in the first tank body is continuously increased, so that the pressure in the first tank body is increased, and the suction of the multiphase flow mixture in the first tank body and the safe operation of the multiphase flow mixing and conveying device are influenced; when the reversing mechanism drives the liquid to flow from the second tank body to the first tank body, if the flow rate of the multiphase flow mixture sucked into the second tank body is larger than the flow rate of the liquid in the second tank body flowing to the first tank body, the multiphase flow mixture in the second tank body is continuously increased, so that the pressure in the second tank body is increased, and the suction of the multiphase flow mixture in the second tank body and the safe operation of the multiphase flow mixing and conveying device are influenced.

When the multiphase flow mixture is conveyed, the air pressure fluctuation in the tank body in the multiphase flow mixing and conveying device is large, so that the air pressure is not accurately detected, and the opening time of the distribution control valve is influenced. Therefore, the opening of the distribution control valve corresponding to the first tank body or the second tank body is controlled by detecting whether the flow rate of the multiphase flow mixture sucked into the first tank body or the second tank body is greater than the preset flow rate value or not, the influence of the advanced opening of the distribution control valve on the conveying of the multiphase flow mixture is avoided, and the gas distribution efficiency is improved.

A flow meter (not shown in the figure) which is in electrical communication connection with the control mechanism 212 is arranged on a pipeline of the input structure 104, which is communicated with the first tank 101 and the second tank 102, that is, the flow meters are arranged on the first sub-feed pipeline 104b and the second sub-feed pipeline 104c, and are used for detecting the flow rate of the multiphase flow mixture to be conveyed sucked into the first tank 101 or the second tank 102 and sending the detection data to the control mechanism 212; a preset flow rate value is set in the control mechanism 212, and the control mechanism 212 compares the detected flow rate with the preset flow rate value.

When the reversing mechanism 103 drives the liquid in the first tank 101 to flow to the second tank 102, the first tank 101 is a tank that sucks the multiphase flow mixture to be transported, the first tank 101 sucks the multiphase flow mixture from the first inlet 1041, a flow meter (not shown in the figure) detects the flow rate of the multiphase flow mixture sucked into the first tank 101 in real time and sends the detected data to the control mechanism 212, when the control mechanism 212 judges that the detected flow rate is greater than a preset flow rate value, the control mechanism 212 controls the first distribution control valve 1073 to open, and the gas in the first tank 101 is discharged to the first distribution pipeline 1071.

When the reversing mechanism 103 drives the liquid in the second tank 102 to flow to the first tank 101, the second tank 102 is a tank into which a multiphase flow mixture to be delivered is sucked, the second tank 102 sucks the multiphase flow mixture from the second inlet 1042, a flow meter (not shown in the figure) detects the flow rate of the multiphase flow mixture sucked into the second tank 102 in real time, when the control mechanism 212 determines that the air pressure in the second tank 102 is greater than a preset flow rate value, the control mechanism 212 controls the second delivery control valve 1074 to open, and the gas in the second tank 102 is discharged to the second delivery line 1072.

In some embodiments of the present application, as shown in fig. 6, the multiphase flow mixing transportation method further includes the following steps:

s2.3, acquiring the air pressure value in the tank body sucked with the multiphase flow mixture to be conveyed;

s2.4, judging whether the air pressure value is smaller than a second air pressure preset value or not;

s2.5, closing the branch delivery control valve on the branch delivery pipeline.

If a feeding valve on a feeding pipeline communicated with the first tank body is in an open state, the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the second tank body is a tank body not sucked with the multiphase flow mixture to be conveyed; and detecting the air pressure value in the first tank body, comparing the air pressure value with a second air pressure preset value, and if the detected air pressure value is smaller than the preset second air pressure preset value, closing a first distribution control valve on a first distribution pipeline communicated with the first tank body, and stopping the distribution of the gas.

If a feeding valve on a feeding pipeline communicated with the second tank body is in an open state, the second tank body is a tank body sucked with the multiphase flow mixture to be conveyed, and the first tank body is a tank body sucked with the multiphase flow mixture to be conveyed; and detecting the air pressure value in the second tank body, comparing the air pressure value with a second air pressure preset value, and if the detected air pressure value is smaller than the preset second air pressure preset value, closing a second distribution control valve on a second distribution pipeline communicated with the second tank body, and stopping the distribution of the gas.

The gas distribution and delivery are carried out in the first tank body or the second tank body, when the gas is discharged, the gas pressure in the tank body is reduced, when the gas pressure in the tank body is reduced to a certain value, namely the tank body reaches a certain negative pressure, the gas does not need to be discharged at the moment, and the gas distribution and delivery control valve on the distribution and delivery pipeline corresponding to the first tank body or the second tank body can be closed, so that the gas in the distribution and delivery pipeline is prevented from flowing back to the tank body, the gas pressure fluctuation is generated in the tank body, the suction of the multiphase flow mixture is influenced, and the delivery efficiency of the multiphase flow mixture is ensured.

It should be noted that the second preset air pressure value can be determined through multiple tests according to the actual use condition of the multiphase flow mixing and conveying device.

The first sensor 2101 and the second sensor 2102 are gas pressure sensors for detecting the gas pressures in the first tank 101 and the second tank 102 in real time and sending the detected data to the control mechanism 212. It should be noted that the positions of the first sensor 2101 and the second sensor 2102 may be adjusted according to actual situations, and are not limited to the positions in fig. 7; a second preset value of air pressure is preset in the control mechanism 212.

When the reversing mechanism 103 drives the liquid in the first tank 101 to flow to the second tank 102, the first tank 101 is a tank which sucks a multiphase flow mixture to be conveyed, the multiphase flow mixture is sucked into the first tank 101 from the first inlet 1041, after the multiphase flow mixture enters the first tank 101, gas and liquid are separated, the gas is located above the liquid, after the first distribution control valve 1073 is opened, the gas in the first tank 101 is discharged to the first distribution pipeline 1071, and the gas pressure in the first tank 101 is reduced; the first sensor 2101 detects the gas pressure in the first tank 101 in real time and sends the detected data to the control mechanism 212, and when the control mechanism 212 determines that the gas pressure in the first tank 102 is less than the second preset gas pressure value, the control mechanism 212 controls the first dispensing control valve 1073 to close and stop the discharge of the gas in the first tank 101.

When the reversing mechanism 103 drives the liquid in the second tank 102 to flow to the first tank 101, the second tank 102 is a tank into which a multiphase flow mixture to be conveyed is sucked, the second tank 102 sucks the multiphase flow mixture from the second inlet 1042, after the multiphase flow mixture enters the second tank 102, gas and liquid are separated, the gas is located above the liquid, after the second distribution control valve 1074 is opened, the gas in the second tank 102 is discharged to the second distribution pipeline 1072, and the gas pressure in the second tank 102 is reduced; the second sensor 2102 detects the air pressure in the second tank 102 in real time, and sends the detected data to the control mechanism 212, and when the control mechanism 212 determines that the air pressure in the second tank 102 is smaller than the second preset air pressure value, the control mechanism 212 controls the second distribution control valve 1074 to close, and stops the discharge of the gas in the second tank 102.

In a second aspect, the present application provides a multiphase flow mixing and conveying apparatus for implementing the multiphase flow mixing and conveying method.

As shown in fig. 7, the multiphase flow mixing and delivering device includes a multiphase flow mixing and delivering mechanism 10, an output mechanism 105, and a branch and delivering mechanism 107. The multiphase flow mixing and conveying mechanism 10 comprises a first tank 101, a second tank 102 and a reversing mechanism 103. The input mechanism 104 is respectively communicated with the first tank 101 and the second tank 102, the input mechanism 104 is provided with a second check valve 1062 and a third check valve 1063, and the multiphase flow mixture is sucked into the first tank 101 through the first inlet 1041, or the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042. The output mechanism 105 is provided with a first check valve 1061 and a fourth check valve 1064, the first check valve 1061 controls the opening and closing of the first outlet 1051, and the fourth check valve 1064 controls the opening and closing of the second outlet 1052.

The distribution mechanism 107 includes a first distribution line 1071 and a second distribution line 1072, the first distribution line 1071 is provided with a first distribution control valve 1073, and the second distribution line 1072 is provided with a second distribution control valve 1074.

In the switch mechanism 103, the

branch lines

1031a, 1031c, 1031b constitute a first line group 1031 for flowing the liquid from the first tank 101 to the second tank 102, and the

branch lines

1032b, 1031c, 1032a constitute a second line group 1032 for flowing the liquid 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.

branch lines

1031a, 1031c and 1031b under the action of the power pump 1030, the first tank 101 forms a vacuum suction chamber, the second one-way valve 1062 is opened, the first one-way valve 1061 is closed, and the multiphase flow mixture is sucked into the first tank 101 through the first inlet 1041.

When the first direction valve 1033a is closed and the second direction 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, the second tank 102 forms a vacuum suction chamber, the third check valve 1063 is opened, the fourth check valve 1064 is closed, and the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042.

The delivery mechanism 107 is arranged in the output mechanism 105 of the multiphase flow mixing and delivering device, so that when the multiphase flow mixture is sucked into the first tank 101 or the second tank 102, gas in the tanks can be respectively discharged from the first delivery line 1071 or the second delivery line 1072, so as to reduce the pressure in the first tank or the second tank, avoid the interruption of the suction of the multiphase flow mixture caused by overlarge pressure fluctuation in the first tank or the second tank when the multiphase flow mixture sucked into the first tank or the second tank contains more gas, reduce the safety risk possibly generated due to overlarge instantaneous pressure in the tanks, and ensure the normal and safe operation of the multiphase flow mixing and delivering device. Meanwhile, the gas distributing and conveying mechanism can play a role in distributing and conveying gas, so that the conveying efficiency of the multiphase flow mixture is improved.

In some embodiments of the present application, a gas pressure detecting structure is further included in the multiphase flow mixing and conveying device. As shown in fig. 7, the first sensor 2101 and the second sensor 2102 are gas pressure sensors, and the first sensor 2101 and the second sensor 2102 are in electrical communication with the control mechanism 212 to detect the gas pressures in the first tank 101 and the second tank 102 in real time and send the detected data to the control mechanism 212.

When the reversing mechanism 103 drives the liquid in the first tank 101 to flow to the second tank 102, the first tank 101 is a tank that sucks in a multiphase flow mixture to be conveyed, the first tank 101 sucks in the multiphase flow mixture from the first inlet 1041, after the multiphase flow mixture enters the first tank 101, gas and liquid are separated, and the gas is located above the liquid. The first sensor 2101 detects the air pressure in the first tank 101 in real time and sends the detected data to the control mechanism 212; presetting a first air pressure preset value and a second air pressure preset value in a control mechanism, and when the control mechanism 212 judges that the air pressure in the first tank 102 is greater than the first air pressure preset value, controlling the first distribution control valve 1073 to be opened by the control mechanism 212, and discharging the air in the first tank 101 to a first distribution pipeline 1071; when the control mechanism 212 determines that the air pressure in the first tank 102 is smaller than the second preset air pressure value, the control mechanism 212 controls the first dispensing control valve 1073 to close, and the discharge of the gas in the first tank 101 is stopped.

When the reversing mechanism 103 drives the liquid in the second tank 102 to flow to the first tank 101, the second tank 102 is a tank which sucks a multiphase flow mixture to be conveyed, the second tank 102 sucks the multiphase flow mixture from the second inlet 1042, after the multiphase flow mixture enters the second tank 102, gas and liquid are separated, and the gas is located above the liquid; the second sensor 2102 detects the air pressure in the second tank 102 in real time, and sends the detected data to the control mechanism 212, when the control mechanism 212 judges that the air pressure in the second tank 102 is greater than the first preset air pressure value, the control mechanism 212 controls the second distribution control valve 1074 to open, and the gas in the second tank 102 is discharged to the second distribution pipeline 1072; when the control mechanism 212 determines that the gas pressure in the second tank 102 is less than the second preset gas pressure value, the control mechanism 212 controls the second transfer control valve 1074 to close, and stops the discharge of the gas in the second tank 102.

After the gas pressure detection mechanism, namely the first sensor 2101 and the second sensor 2102, is arranged in the multiphase flow mixing and conveying device, the opening of the distribution control valve corresponding to the first tank 101 or the second tank 102 can be controlled by detecting whether the gas pressure in the first tank 101 or the second tank 102 is larger than a first preset gas pressure value, so that the influence of the advanced opening of the distribution control valve on the conveying of the multiphase flow mixture is avoided while the pressure in the first tank or the second tank is ensured not to be overlarge, the pressure in the tank for gas distribution is increased, and the gas distribution and conveying efficiency is improved;

in addition, whether the air pressure in the first tank 101 or the second tank 102 is smaller than a second air pressure preset value or not can be detected to control the closing of the delivery control valve corresponding to the first tank 101 or the second tank 102, so that a certain air pressure can be maintained in the first tank 101 or the second tank 102, the reciprocating flow speed of the liquid between the first tank 101 and the second tank 102 is increased, and the multiphase flow mixing and delivery efficiency is improved. It is understood that the first preset air pressure value and the second preset air pressure value can be determined according to the actual multiphase flow mixing and conveying requirement.

In a third aspect, the present application provides a multiphase flow mixed transportation application system, where the multiphase flow mixed transportation application system includes the multiphase flow mixed transportation devices provided in the embodiments of the present application, and each multiphase flow mixed transportation device is used to realize gas-liquid mixed transportation and gas distribution transportation.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.

In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.

The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the 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

1. A method of multiphase flow commingling, comprising:

2. The multiphase flow mixing transportation method according to claim 1, wherein in the step of discharging the gas sucked into the tank body where the multiphase flow mixture is to be transported, the method comprises:

judging whether a separate transmission condition is met;

3. The multiphase flow mixing transportation method according to claim 2, wherein the step of determining whether the preset flow distribution condition is achieved comprises:

4. The multiphase flow mixing transportation method according to claim 2, wherein the step of determining whether the preset flow distribution condition is achieved comprises:

5. The multiphase flow mixing transportation method according to claim 2, wherein the step of determining whether the preset flow distribution condition is achieved comprises:

judging whether the flow is larger than a preset flow value or not;

6. A multiphase flow mixing transportation method according to any one of claims 2-5, characterized by further comprising:

7. A multiphase flow commingling flow device, comprising:

a first tank;

a second tank;

8. A multiphase flow mixing and conveying device according to claim 7, wherein a distribution control valve is arranged on the distribution pipeline and is used for controlling gas in the tank body to be conveyed into the distribution pipeline when the multiphase flow mixture is sucked into any one of the first tank body or the second tank body.

9. A multiphase flow mixing and conveying device according to claim 8, further comprising a gas pressure detecting mechanism; the first tank body and the second tank body are respectively internally provided with the air pressure detection mechanism, and the air pressure detection mechanism and the separate transmission control valve are in linkage control.

10. A multiphase flow mixture transportation application system, characterized by comprising the multiphase flow mixture transportation device according to any one of claims 7 to 10, wherein each multiphase flow mixture transportation device is used for distributing gas and multiphase flow mixture.