Multiphase flow mixing method, multiphase flow mixing device, and multiphase flow mixing application system

Abstract

The application discloses a multiphase flow mixing method, a multiphase flow mixing device and a multiphase flow mixing application system. The multiphase flow mixture is sucked into a tank body of the multiphase flow mixing device, liquid in the tank body with the multiphase flow mixture is transported to the tank body without the multiphase flow mixture, the liquid in the tank body without the multiphase flow mixture compresses the gas in the tank body and discharges the compressed gas in the tank body to a first discharge pipeline, and then the liquid in the tank body without the multiphase flow mixture is discharged to a second discharge pipeline, so that the gas and the liquid in the multiphase flow mixture to be transported are separated and transported. The process flow is simple, the separation of the gas and the liquid can be completed by using one device, and the cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas-liquid mixed conveying, in particular to a multiphase flow mixed conveying method, a multiphase flow mixed conveying device and a multiphase flow mixed conveying application system. BACKGROUND

[0002] In the process of oil and gas conveying after oil and gas exploitation, due to the simultaneous existence of gas and liquid materials, in order to avoid damage caused by idling of pumps and other structures, it is difficult to directly pump, and usually gas-liquid separation treatment is carried out first to facilitate separate conveying. However, the process of the treatment process, the operation and maintenance of the device in the existing technology are relatively complex and the cost is high. SUMMARY

[0003] The present application provides a multiphase flow mixed conveying method, a multiphase flow mixed conveying device and a multiphase flow mixed conveying application system to solve the problem of complex gas-liquid separation treatment process and high cost in the prior art when conveying multiphase flow mixture.

[0004] In a first aspect, a multiphase flow mixed conveying method is provided, comprising:

[0005] Detecting whether the multiphase flow mixture to be conveyed is sucked into any one of the first tank body and the second tank body;

[0006] If the multiphase flow mixture to be conveyed is sucked into one of the first tank body and the second tank body, the liquid in the tank body with the multiphase flow mixture to be conveyed is conveyed into the tank body without the multiphase flow mixture to be conveyed, the liquid entering the tank body without the multiphase flow mixture to be conveyed compresses the gas in the tank body and discharges the compressed gas in the tank body to the first discharge pipeline communicated with the tank body; the liquid in the tank body without the multiphase flow mixture to be conveyed is discharged to the second discharge pipeline communicated with the tank body.

[0007] Further, in the step of detecting whether the multiphase flow mixture to be conveyed is sucked into any one of the first tank body and the second tank body, comprising:

[0008] Detecting the opening and closing state of the inlet valve on the inlet pipeline communicated with the first tank body and detecting the opening and closing state of the inlet valve on the inlet pipeline communicated with the second tank body;

[0009] If the inlet valve on the inlet pipeline communicated with the first tank body is opened and the inlet valve on the inlet pipeline communicated with the second tank body is closed, it is judged that the multiphase flow mixture to be conveyed is sucked into the first tank body; otherwise, it is judged that the multiphase flow mixture to be conveyed is sucked into the second tank body.

[0010] Further, in the step of detecting whether the to-be-conveyed multiphase flow mixture is sucked into any one of the first tank body and the second tank body, the step comprises:

[0011] detecting a liquid flow direction between the first tank body and the second tank body;

[0012] if the liquid flows from the first tank body to the second tank body, it is determined that the to-be-conveyed multiphase flow mixture is sucked into the first tank body; otherwise, it is determined that the to-be-conveyed multiphase flow mixture is sucked into the second tank body.

[0013] Further, in the step of discharging the liquid in the tank body in which the to-be-conveyed multiphase flow mixture is not sucked, the step comprises:

[0014] determining whether a split-conveying condition is reached;

[0015] if the split-conveying condition is reached, closing the first discharge control valve, opening the second discharge control valve, and discharging the liquid in the tank body to the second discharge pipeline.

[0016] Further, in the step of determining whether the split-conveying condition is reached, the step comprises:

[0017] obtaining a liquid level height in the tank body in which the to-be-conveyed multiphase flow mixture is not sucked;

[0018] determining whether the liquid level height reaches a preset liquid level height;

[0019] if the liquid level height reaches the preset liquid level height, it is determined that the split-conveying condition is reached.

[0020] Further, in the step of determining whether the split-conveying condition is reached, the step comprises:

[0021] obtaining a liquid pressure in the tank body in which the to-be-conveyed multiphase flow mixture is not sucked;

[0022] determining whether the liquid pressure reaches a preset liquid pressure value;

[0023] if the liquid pressure reaches the preset liquid pressure value, it is determined that the split-conveying condition is reached.

[0024] In a second aspect, the application provides a multiphase flow mixing and conveying device, comprising a multiphase flow mixing and conveying mechanism and an output mechanism connected with the multiphase flow mixing and conveying mechanism;

[0025] the multiphase flow mixing and conveying mechanism comprises a first tank body, a second tank body, and a reversing mechanism, the reversing mechanism drives liquid in the first tank body and the second tank body to reciprocate and circulate, so that the first tank body and the second tank body alternately form a vacuum suction cavity and / or a compression discharge cavity, to realize continuous mixing and conveying of liquid, gas, or gas-liquid mixture;

[0026] The output mechanism comprises a first discharge pipeline and a second discharge pipeline; one end of the first discharge pipeline is in communication with any one of the first tank body and the second tank body;

[0027] A first discharge control valve is arranged at the other end of the first discharge pipeline, and a bypass position is arranged on the first discharge pipeline between the other end and the bypass position; the other end of the bypass position is connected with the second discharge pipeline, and a second discharge control valve is arranged on the second discharge pipeline.

[0028] Further, the multiphase flow mixing device further comprises a detection mechanism arranged on the first tank body and the second tank body, and the detection mechanism is electrically connected with the first discharge control valve and the second discharge control valve.

[0029] Further, the detection mechanism is a liquid level detection mechanism or a hydraulic pressure detection mechanism.

[0030] In a third aspect, the present application provides a multiphase flow mixing application system, which comprises the multiphase flow mixing device provided in the embodiments of the present application, and each of the multiphase flow mixing devices is used for mixing gas and / or liquid.

[0031] The present application provides a multiphase flow mixing method, a multiphase flow mixing device and a multiphase flow mixing application system, which can realize the separation and transportation of gas and liquid in the multiphase flow mixture by the following steps: sucking the multiphase flow mixture into one tank body of the multiphase flow mixing device, transporting the liquid in the tank body with the multiphase flow mixture to the tank body without the multiphase flow mixture, compressing the gas in the tank body without the multiphase flow mixture by the liquid in the tank body with the multiphase flow mixture, discharging the compressed gas in the tank body without the multiphase flow mixture to the first discharge pipeline, and then discharging the liquid in the tank body without the multiphase flow mixture to the second discharge pipeline. The process flow is simple, and the separation of gas and liquid can be completed by using one device, thereby saving the cost. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0033] Figure 1 The flowchart of the multiphase flow mixing method provided in the embodiments of the present application is shown in the figure;

[0034] Figure 2 The flowchart of the multiphase flow mixing method provided in the embodiments of the present application is shown in the figure; Figure 1Flowchart of step S1 in the embodiment of the present application;

[0035] Figure 3 For Figure 1 Another flowchart of step S1 in the embodiment of the present application;

[0036] Figure 4 For Figure 1 Flowchart of step S3 in the embodiment of the present application;

[0037] Figure 5 For Figure 4 Flowchart of step S3.1 in the embodiment of the present application;

[0038] Figure 6 For Figure 4 Another flowchart of step S3.1 in the embodiment of the present application;

[0039] Figure 7 Structure diagram of the multiphase flow mixing device provided in the embodiment of the present application.

[0040] In the figure, the multiphase flow mixing device 10; the first tank body 101; the second tank body 102; the reversing mechanism 103; the power pump 1030; the first pipeline group 1031; the second pipeline group 1032; the branch pipeline 1031a; the branch pipeline 1031b; the branch pipeline 1031c; the branch pipeline 1032a; the branch pipeline 1032b; the first reversing valve 1033a; the second reversing valve 1033b; the input mechanism 104; the feed pipeline 104a; the first sub-feed pipeline 104b; the second sub-feed pipeline 104c; the output mechanism 105; the first inlet 1041; the second inlet 1042; the one-way valve 1061; the one-way valve 1062; the one-way valve 1063; the one-way valve 1064; the first outlet 1051; the second outlet 1052; the first discharge pipeline 1015; the second discharge pipeline 1025; the first discharge control valve 1115; the second discharge control valve 1125;

[0041] The detection mechanism 211; the first sensor 2101; the second sensor 2102; the control mechanism 212. DETAILED DESCRIPTION

[0042] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0043] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0044] In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, for purposes of explanation, specific details are set forth. It is apparent to those skilled in the art that the present application can be practiced without using these specific details. In other instances, well-known structures and processes are not described in detail in order to avoid obscuring the description of the present application. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features presented herein. Unless otherwise specified, parallel or perpendicular in the orientation involved in the present application is not strictly parallel or perpendicular, as long as the corresponding structure can achieve the corresponding purpose.

[0045] Please refer to Figure 1 The present application provides a multiphase flow mixing method, a multiphase flow mixing device and a multiphase flow mixing system, which are described in detail below.

[0046] In a first aspect, the present application provides a multiphase flow mixing method, as shown in Figure 1 The method comprises the following steps:

[0047] 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;

[0048] S2, if the multiphase mixture to be transported is sucked into one of the first tank and the second tank, transporting the liquid in the tank which has sucked the multiphase mixture to be transported to the tank which has not sucked the multiphase mixture to be transported, compressing the gas in the tank which has not sucked the multiphase mixture to be transported by the liquid entering the tank, and discharging the compressed gas from the tank which has not sucked the multiphase mixture to be transported; and discharging the liquid from the tank which has not sucked the multiphase mixture to be transported.

[0049] If the multiphase mixture is sucked by the first tank, the first tank is the tank which has sucked the multiphase mixture to be transported, the second tank is the tank which has not sucked the multiphase mixture to be transported, the first tank forms a vacuum suction chamber, and the second tank forms a compression discharge chamber; the first tank transports the liquid in the tank to the second tank, the liquid level in the second tank rises, the gas above the liquid surface is compressed, and the compressed gas is discharged from the second tank; after the gas in the second tank is completely discharged, the first tank continues to transport the liquid in the tank to the second tank, and the liquid in the second tank is discharged.

[0050] If the multiphase mixture is sucked by the second tank, the second tank is the tank which has sucked the multiphase mixture to be transported, the first tank is the tank which has not sucked the multiphase mixture to be transported, the second tank forms a vacuum suction chamber, and the first tank forms a compression discharge chamber; the second tank transports the liquid in the tank to the first tank, the liquid level in the first tank rises, the gas above the liquid surface is compressed, and the compressed gas is discharged from the first tank; after the gas in the first tank is completely discharged, the second tank continues to transport the liquid in the tank to the first tank, and the liquid in the first tank is discharged.

[0051] By discharging the gas and the liquid in the tank which has not sucked the multiphase mixture to be transported respectively, the gas and the liquid in the multiphase mixture can be transported respectively during the transportation process, and the transportation efficiency is improved. The multiphase mixture can be an oil-gas mixture or an oil-gas-water mixture.

[0052] Figure 7 A structure diagram of a multiphase mixture transportation device for realizing the multiphase mixture transportation method provided in the present application is provided, and the multiphase mixture transportation method provided in the present application is further described below with reference to Figure 7 It should be noted that, Figure 7 The multiphase mixture transportation device shown in the above description is only used to illustrate the multiphase mixture transportation method in the present application. The multiphase mixture transportation device for realizing the multiphase mixture transportation is not limited to the structure in the above description. Figure 7 The multiphase mixture transportation device for realizing the multiphase mixture transportation is not limited to the structure in the above description.

[0053] As shown in the above description, Figure 7As shown, the multiphase flow mixing device includes a multiphase flow mixing mechanism 10 and an output mechanism 105. The multiphase flow mixing mechanism 10 includes a first tank 101, a second tank 102 and a reversing mechanism 103. The input mechanism 104 is in communication with the first tank 101 and the second tank 102, respectively.

[0054] The input mechanism 104 includes a feed pipeline 104a, a first sub-feed pipeline 104b and a second sub-feed pipeline 104c. The first sub-feed pipeline 104b is in communication with the first tank 101, and the second sub-feed pipeline 104c is in communication with the second tank 102, respectively. The first sub-feed pipeline 104b is provided with a second one-way valve 1062, and the second sub-feed pipeline 104c is provided with a third one-way valve 1063. The second one-way valve 1062 and the third one-way valve 1063 are feed valves for controlling the opening and closing of the first sub-feed pipeline 104b and the second sub-feed pipeline 104c. It should be noted that other types of valves can also be used as the feed valves, and when the feed valves are one-way valves, the structure can be relatively simple.

[0055] The multiphase flow mixture is sucked into the first tank 101 through the communication port 1041 of the input mechanism 104 on the first tank 101, or the multiphase flow mixture is sucked into the second tank 102 through the communication port 1042 of the input mechanism 104 on the second tank 102.

[0056] The output mechanism 105 includes a first discharge pipeline 1015 and a second discharge pipeline 1025. One end of the first discharge pipeline 1015 is in communication with the first tank 101 and the second tank 102. The communication port of the first discharge pipeline 1015 on the first tank is 1051, and the communication port of the first discharge pipeline 1015 on the second tank is 1052. The one-way valve 1061 controls the opening and closing of the communication port 1051, and the one-way valve 1064 controls the opening and closing of the communication port 1052.

[0057] The other end of the first discharge pipeline 1015 is provided with a first discharge control valve 1115. The other end of the first discharge pipeline 1015 is connected to the second discharge pipeline 1025, and the second discharge pipeline 1025 is provided with a second discharge control valve 1125.

[0058] It should be noted that in the feed pipeline 104a, a flow detection mechanism, such as a flow meter (not shown in the figure), can be provided to measure the multiphase flow mixture entering the multiphase flow mixing device. The flow detection mechanism can be linked to the first discharge control valve 1115 and the second discharge control valve 1125 for linkage control, so as to adjust the output according to the multiphase flow mixture entering the multiphase flow mixing device, thereby improving the conveying efficiency of the multiphase flow mixing device.

[0059] The first discharge control valve 1115 and the second discharge control valve 1125 can be pneumatic valves, or solenoid valves, or electric valves, which can be selected according to actual conditions, and are not limited here.

[0060] In the reversing mechanism 103, the branch pipelines 1031a, 1031c and 1031b constitute a first pipeline group 1031 for liquid flowing from the first tank body 101 to the second tank body 102, and the branch pipelines 1032b, 1031c and 1032a constitute a second pipeline group 1032 for liquid flowing from the second tank body 102 to the first tank body 101; the power pump 1030 in the reversing mechanism 103 can drive liquid to flow from the first tank body 101 to the second tank body 102, or to flow from the second tank body 102 to the first tank body 101; the reversing mechanism 103 further includes a first reversing valve 1033a and a second reversing valve 1033b.

[0061] When the first reversing valve 1033a is opened and the second reversing valve 1033b is closed, the liquid in the first tank body 101 flows to the second tank body 102 through the branch pipelines 1031a, 1031c and 1031b under the action of the power pump 1030, and the first tank body 101 forms a vacuum suction cavity; under the action of negative pressure, the one-way valve 1062 is opened and the one-way valve 1061 is closed, and the multiphase flow mixture is sucked into the first tank body 101 through the first inlet 1041, which is a communication port 1041 of the input mechanism 104 to the first tank body 101.

[0062] After the multiphase flow mixture is sucked into the first tank body 101, the gas and the liquid are separated, and the gas is located above the liquid surface. The liquid in the first tank body 101 flows to the second tank body 102 under the drive of the reversing mechanism 103, the liquid level in the second tank body 102 rises, and the gas above the liquid surface is compressed; the one-way valve 1063 is closed, the one-way valve 1064 is opened, the first discharge control valve 1115 is opened, and the second discharge control valve 1125 is closed, and the compressed gas in the second tank body 102 is discharged from the first discharge pipeline 1015. After the gas in the second tank body 102 is completely discharged, the first discharge control valve 1115 is closed, the second discharge control valve 1125 is opened, and the liquid in the second tank body 102 is discharged from the second discharge pipeline 1025.

[0063] When the first reversing valve 1033a is closed and the second reversing valve 1033b is opened, the liquid in the second tank 102 flows to the first tank 101 under the action of the power pump 1030 through the branch pipelines 1032b, 1031c and 1032a, and the second tank 102 forms a vacuum suction cavity; under the action of negative pressure, the one-way valve 1063 is opened and the one-way valve 1064 is closed, and the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042, which is a communication port of the input mechanism 104 of the second tank 102.

[0064] After the multiphase flow mixture is sucked into the second tank 102, the gas and the liquid are separated, and the gas is located above the liquid surface. The liquid in the second tank 102 flows to the first tank 101 under the drive of the reversing mechanism 103, the liquid level in the first tank 101 rises, and the gas above the liquid surface is compressed; the one-way valve 1062 is closed, the one-way valve 1061 is opened, the first discharge control valve 1115 is opened, and the second discharge control valve 1125 is closed, and the compressed gas in the first tank 101 is discharged from the first discharge pipeline 1015. After the gas in the first tank 101 is completely discharged, the first discharge control valve 1115 is closed, the second discharge control valve 1125 is opened, and the liquid in the first tank 101 is discharged from the second discharge pipeline 1025.

[0065] By arranging the first discharge pipeline 1015 and the second discharge pipeline 1025 in the output mechanism 105 of the multiphase flow mixing and conveying device, and arranging the first discharge control valve 1115 for controlling the opening and closing of the first discharge pipeline 1015 and the second discharge control valve 1125 for controlling the opening and closing of the second discharge pipeline 1025, when the first tank 101 or the second tank 102 is in a compressed discharge state, the gas and the liquid in the tank can be discharged from the first discharge pipeline 1015 and the second discharge pipeline 1025 respectively, realizing separate conveying of the gas and the liquid, avoiding the existence of gas-liquid mixture in the conveying pipeline, and improving the conveying efficiency.

[0066] It should be noted that the control mechanism 212 can be arranged in the multiphase flow mixing and conveying device, as shown in Figure 1 The control mechanism 212 is in electrical communication with each valve in the reversing mechanism 103 and each valve in the output mechanism 105, so as to realize automatic control of the reversing and separate conveying of the multiphase flow mixing and conveying device, and improve the conveying efficiency of the multiphase flow mixing and conveying device.

[0067] In some embodiments of the present application, as shown in Figure 2 The step S2 includes the following steps:

[0068] S1.1a, detecting the opening and closing state of the inlet valve on the inlet pipeline connected to the first tank, and detecting the opening and closing state of the inlet valve on the inlet pipeline connected to the second tank;

[0069] S1.2a, if the inlet valve on the inlet line connected to the first tank is open and the inlet valve on the inlet line connected to the second tank is closed, it is determined that the multiphase flow mixture to be transported is sucked into the first tank; otherwise, it is determined that the multiphase flow mixture to be transported is sucked into the second tank.

[0070] Since the gas in the tank not having the multiphase flow mixture to be transported sucked in is discharged when the body is divided and transported, it is necessary to determine which of the first tank and the second tank has the multiphase flow mixture to be transported sucked in and which of the first tank and the second tank does not have the multiphase flow mixture to be transported sucked in before the body is divided and transported.

[0071] First, the open and close states of the inlet valve on the inlet line connected to the first tank and the open and close states of the inlet valve on the inlet line connected to the second tank are detected. If the inlet valve on the inlet line connected to the first tank is in an open state and the inlet valve on the inlet line connected to the second tank is in a closed state, it is determined that the first tank has the multiphase flow mixture to be transported sucked in and the second tank does not have the multiphase flow mixture to be transported sucked in; otherwise, it is determined that the second tank has the multiphase flow mixture to be transported sucked in and the first tank does not have the multiphase flow mixture to be transported sucked in.

[0072] If the first tank does not have the multiphase flow mixture to be transported sucked in, the first discharge control valve on the first discharge line connected to the first tank is opened, the second discharge control valve on the second discharge line connected to the first tank is closed, and the compressed gas in the first tank is discharged to the first discharge line.

[0073] If the second tank does not have the multiphase flow mixture to be transported sucked in, the first discharge control valve on the first discharge line connected to the second tank is opened, the second discharge control valve on the second discharge line connected to the second tank is closed, and the compressed gas in the second tank is discharged to the first discharge line.

[0074] It is more convenient to determine whether the first tank or the second tank does not have the multiphase flow mixture to be transported sucked in by detecting the open and close states of the inlet valve on the inlet line connected to the first tank or the second tank.

[0075] It should be noted that, in addition to determining whether the first tank or the second tank does not have the multiphase flow mixture to be transported sucked in according to the open and close states of the inlet valve on the inlet line connected to the first tank or the second tank, it can also be determined which of the first tank and the second tank does not have the multiphase flow mixture to be transported sucked in according to the flow direction of the liquid in the first tank or the second tank.

[0076] In some embodiments of the present application, as Figure 3As shown, step S2 includes the following steps:

[0077] S1.1b, detecting the liquid flow direction between the first tank and the second tank;

[0078] S1.2b, if the liquid flows from the first tank to the second tank, determining that the multiphase flow mixture to be transported is sucked into the first tank; otherwise, determining that the multiphase flow mixture to be transported is sucked into the second tank.

[0079] During the transportation of the multiphase flow mixture, the reversing mechanism drives the liquid to reciprocate between the first tank and the second tank. The liquid flow direction between the first tank and the second tank is detected. If it is detected that the liquid flows from the first tank to the second tank between the first tank and the second tank, at this time, the first tank is the tank into which the multiphase flow mixture to be transported is sucked, and the second tank is the tank into which the multiphase flow mixture to be transported is not sucked. The first discharge control valve on the discharge pipeline communicating with the second tank is opened to discharge the compressed gas in the second tank.

[0080] If it is detected that the liquid flows from the second tank to the first tank between the first tank and the second tank, at this time, the second tank is the tank into which the multiphase flow mixture to be transported is sucked, and the first tank is the tank into which the multiphase flow mixture to be transported is not sucked. The first discharge control valve on the discharge pipeline communicating with the first tank is opened to discharge the compressed gas in the first tank.

[0081] Since during the transportation of the multiphase mixture, the inlet valve on the inlet pipeline communicating with the first tank and the inlet valve on the inlet pipeline communicating with the second tank can be simultaneously opened, that is, when one inlet valve is opened, the other inlet valve is not closed, therefore, by detecting the flow direction in the two tanks to determine whether the first tank or the second tank is the tank into which the multiphase mixture to be transported is not sucked, it is more accurate than by detecting the opening and closing state of the inlet valve.

[0082] Figure 7 A structure schematic diagram of a multiphase flow mixing and transporting device for realizing the multiphase flow mixing and transporting method provided in the present application is provided, and the multiphase flow mixing and transporting method provided in the present application will be further described below with reference to Figure 7 It should be noted that, Figure 7 The multiphase flow mixing and transporting device shown in the above Figure 7 is only used as an example to illustrate the multiphase flow mixing and transporting method in the present application. The multiphase flow mixing and transporting device for realizing the multiphase mixture mixing and transporting is not limited to

[0083] A flow direction meter (not shown) is provided on the branch pipeline 1031c and electrically connected to the control system 212. When the first switching valve 1033a in the switching mechanism 103 is opened and the second switching valve 1033b is closed, the liquid in the first tank 101 flows to the second tank 102 through the branch pipelines 1031a, 1031c and 1031b under the action of the power pump 1030, and the first tank 101 forms a vacuum suction chamber and the second tank 102 forms a compression discharge chamber. The control system 212 detects the liquid flow from the first tank 101 to the second tank 102 at this time through the flow direction meter, and determines that the first tank 101 is the tank that has sucked the multiphase flow mixture to be transported and the second tank 102 is the tank that has not sucked the multiphase flow mixture to be transported, and the multiphase flow mixture is sucked into the first tank 101 through the first inlet 1041.

[0084] The liquid in the first tank 101 flows to the second tank 102 under the drive of the switching mechanism 103, the liquid level in the second tank 102 rises, and the gas on the compression liquid surface is compressed; the one-way valve 1063 is closed, the one-way valve 1064 is opened, the first discharge control valve 1115 is opened, and the second discharge control valve 1125 is closed, and the compressed gas in the second tank 102 is discharged from the first discharge pipeline 1015.

[0085] When the first switching valve 1033a in the switching mechanism 103 is closed and the second switching valve 1033b is opened, the liquid in the second tank 102 flows to the first tank 101 through the branch pipelines 1032b, 1031c and 1032a under the action of the power pump 1030, and the second tank 102 forms a vacuum suction chamber and the first tank 101 forms a compression discharge chamber. The control system 212 detects the liquid flow from the second tank 102 to the first tank 101 at this time, and determines that the second tank 102 is the tank that has sucked the multiphase flow mixture to be transported and the first tank 101 is the tank that has not sucked the multiphase flow mixture to be transported, and the multiphase flow mixture is sucked into the second tank 101 through the communication port 1042 of the input mechanism 104.

[0086] The liquid in the second tank 102 flows to the first tank 101 under the drive of the switching mechanism 103, the liquid level in the first tank 101 rises, and the gas on the compression liquid surface is compressed; the one-way valve 1062 is closed, the one-way valve 1061 is opened, the first discharge control valve 1115 is opened, and the second discharge control valve 1125 is closed, and the compressed gas in the first tank 101 is discharged from the first discharge pipeline 1015.

[0087] In some embodiments of the present application, as shown in Figure 4 S3.1, determining whether a preset split transport condition is reached.

[0088] S3.1, determining whether a preset split transport condition is reached.

[0089] S3.2, if the distribution condition is reached, closing the first discharge control valve and opening the second discharge control valve to discharge the liquid in the tank to the second discharge pipeline.

[0090] In the process of transporting the multiphase flow mixture, the gas in the tank which has not been sucked into the multiphase flow mixture to be transported is discharged to the first discharge pipeline, and then the liquid is discharged to the second discharge pipeline after the gas is completely discharged. Therefore, the closing time of the first discharge control valve and the opening time of the second discharge control valve are particularly important. If the first discharge control valve is closed too early and the second discharge control valve is opened too early, the gas will enter the second discharge pipeline, affecting the distribution of the liquid; if the first discharge control valve is closed too late and the second discharge control valve is opened too late, the liquid will enter the first discharge pipeline, affecting the distribution of the gas.

[0091] Therefore, before the distribution of the liquid, it is necessary to first determine whether the preset distribution condition is reached. Specifically, the preset distribution condition can be determined by the liquid level height in the tank or the liquid pressure in the tank.

[0092] In some embodiments of the present application, as shown in Figure 5 the step S3.1 includes the following steps:

[0093] S3.11a, obtaining the liquid level height in the tank;

[0094] S3.12a, determining whether the liquid level height reaches a preset liquid level height;

[0095] S3.13a, if the liquid level height reaches the preset liquid level height, it is determined that the distribution condition is reached.

[0096] When the gas in the tank which has not been sucked into the multiphase flow mixture to be transported is completely discharged, the liquid in the tank which has been sucked into the multiphase flow mixture to be transported continues to enter the tank under the driving of the reversing mechanism. At this time, the first discharge control valve needs to be closed and the second discharge control valve needs to be opened, so that the liquid in the tank is discharged to the second discharge pipeline, to avoid the liquid entering the gas distribution pipeline through the first discharge control valve, affecting the distribution of the gas.

[0097] Specifically, when the first tank body is inhaled by the input mechanism, the first tank body is the tank body inhaled by the multiphase flow mixture to be transported, the second tank body is the tank body not inhaled by the multiphase flow mixture to be transported, the first tank body forms a vacuum suction cavity, and the second tank body forms a compression discharge cavity; the first tank body transports 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 surface is compressed, and the compressed gas is discharged from the second tank body; after the liquid surface in the second tank body reaches a preset height, the first discharge control valve is closed, the second discharge control valve is opened, the first tank body continues to transport the liquid in the tank body to the second tank body, and the liquid in the second tank body is discharged to the second discharge pipeline.

[0098] When the second tank body is inhaled by the input mechanism, the second tank body is the tank body inhaled by the multiphase flow mixture to be transported, the first tank body is the tank body not inhaled by the multiphase flow mixture to be transported, the second tank body forms a vacuum suction cavity, and the first tank body forms a compression discharge cavity; the second tank body transports 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 surface is compressed, and the compressed gas is discharged from the first tank body; after the liquid surface in the first tank body reaches a preset height, the first discharge control valve is closed, the second discharge control valve is opened, the second tank body continues to transport the liquid in the tank body to the first tank body, and the liquid in the first tank body is discharged to the second discharge pipeline.

[0099] Figure 7 A structure schematic diagram of a multiphase flow mixing device for realizing the multiphase flow mixing method provided in the present application is provided, and the multiphase flow mixing method provided in the present application is further described below Figure 7 It should be noted that the multiphase flow mixing method provided in the present application is described below by taking the multiphase flow mixing device shown in Figure 7 The multiphase flow mixing device shown in the present application is only used as an example to describe the multiphase flow mixing method in the present application. The multiphase flow mixing device for realizing the multiphase flow mixing method is not limited to the structure shown in the present application. Figure 7 The multiphase flow mixing device shown in the present application is only used as an example to describe the multiphase flow mixing method in the present application. The multiphase flow mixing device for realizing the multiphase flow mixing method is not limited to the structure shown in the present application.

[0100] A detection mechanism 211 is arranged on the multiphase flow mixing mechanism 10, and the detection mechanism includes a first sensor 2101 arranged on the first tank body 101 and a second sensor 2102 arranged on the second tank body 102. The first sensor 2101 and the second sensor 2102 are liquid level meters, and the first sensor 2101 and the second sensor 2102 are electrically connected to a control mechanism 212 through a data line.

[0101] When the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, the first tank 101 is in a vacuum suction state, and the second tank 102 is in a compression discharge state. The second tank 102 is a tank that has not sucked in the multiphase mixture to be transported. The liquid level in the second tank 102 rises, compressing the gas on the liquid surface. The compressed gas is discharged to the first discharge pipeline 1015. A preset liquid level height is set in the control mechanism 212. The preset liquid level height is the position of the second outlet 1052. The second outlet 1052 is the connection port of the first discharge pipeline 1015 on the second tank 102. When the liquid in the second tank 102 reaches the preset liquid level height, the control mechanism 212 controls the first discharge control valve 1115 to close and the control mechanism 212 controls the second discharge control valve 1125 to open. The liquid in the second tank 102 is discharged to the second control pipeline 1025.

[0102] When the reversing mechanism 103 drives the liquid to flow from the second tank 102 to the first tank 101, the second tank 102 is in a vacuum suction state, and the first tank 101 is in a compression discharge state. The first tank 101 is a tank that has not sucked in the multiphase mixture to be transported. The liquid level in the first tank 102 rises, compressing the gas on the liquid surface. The compressed gas is discharged to the first discharge pipeline 1015. A preset liquid level height is set in the control mechanism 212. The preset liquid level height is the position of the first outlet 1051. The first outlet 1051 is the connection port of the first discharge pipeline 1015 on the first tank 101. When the liquid in the first tank 101 reaches the preset liquid level height, the control mechanism 212 controls the first discharge control valve 1115 to close and the control mechanism 212 controls the second discharge control valve 1125 to open. The liquid in the first tank 101 is discharged to the second control pipeline 1025.

[0103] In some embodiments of this application, such as Figure 6 As shown, step S3 includes the following steps:

[0104] S3.1b, Obtain the hydraulic pressure inside the tank;

[0105] S3.2b. Determine whether the hydraulic pressure has reached the preset hydraulic pressure value;

[0106] S3.3b. If the hydraulic pressure reaches the preset hydraulic pressure value, then it is determined that the distribution condition has been met.

[0107] In the process of multiphase flow mixed transportation, the liquid is always reciprocating in the first tank and the second tank, and the liquid in the first tank and the second tank is always in a flowing state, causing the liquid level height in the first tank and the second tank to fluctuate and change constantly. Therefore, the detected liquid level height may be inaccurate, and by detecting whether the liquid level height in the first tank or the second tank reaches a preset liquid level height, then controlling the first discharge control valve to close and the second discharge control valve to open, it may cause the first discharge control valve to close in time, causing the liquid to be discharged into the first discharge pipeline, affecting the distribution of gas and liquid.

[0108] When the liquid flows from the first tank to the second tank, the second tank is a tank that has not inhaled the multiphase mixture to be transported, and the liquid in the second tank is constantly increasing, and the pressure at the bottom of the second tank is constantly increasing; when the liquid pressure in the second tank reaches a preset value, the first discharge control valve is closed, and the second discharge control valve is opened, and the liquid in the second tank is discharged to the second discharge pipeline.

[0109] When the liquid flows from the second tank to the first tank, the first tank is a tank that has not inhaled the multiphase mixture to be transported, and the liquid in the first tank is constantly increasing, and the pressure at the bottom of the first tank is constantly increasing; when the liquid pressure in the first tank reaches a preset value, the first discharge control valve is closed, and the second discharge control valve is opened, and the liquid in the first tank is discharged to the second discharge pipeline.

[0110] Figure 7 A structure diagram of a multiphase flow mixed transportation device for implementing the multiphase flow mixed transportation method provided in the present application is provided, and the multiphase flow mixed transportation method in the present application is described below Figure 7 , the multiphase flow mixed transportation method provided in the present application is further described. It should be noted that Figure 7 The multiphase flow mixed transportation device shown in the above is only used to illustrate the multiphase flow mixed transportation method in the present application. The multiphase flow mixed transportation device for implementing the multiphase mixture mixed transportation is not limited to Figure 7 The structure in the above.

[0111] The first sensor 2101 and the second sensor 2102 are hydraulic pressure sensors, which detect the hydraulic pressure in the first tank 101 and the second tank 102 in real time, and send the detected data to the control mechanism 212. A preset hydraulic pressure value is set in the control mechanism 212, and if the hydraulic pressure value in the first tank 101 or the second tank 102 reaches the preset hydraulic pressure value, the control mechanism 212 controls the first discharge control valve 1115 to close and controls the second discharge control valve 1125 to open.

[0112] The preset hydraulic pressure value is the hydraulic pressure in the first tank 101 when the liquid level in the first tank 101 rises to the first outlet 1051, or the hydraulic pressure in the second tank 102 when the liquid level in the second tank 102 rises to the second outlet 1052. The preset hydraulic pressure value can be calculated by the volume of the first tank 101 and the position of the first outlet 1051, or by the volume of the second tank 102 and the position of the second outlet 1052.

[0113] When the reversing mechanism 103 drives the liquid in the first tank 101 to flow to the second tank 102, the second tank 102 is the tank that has not inhaled the multiphase mixture to be transported, the liquid in the second tank 102 increases, compressing the gas above the liquid surface, the compressed gas is discharged to the first discharge pipeline 1015, and at the same time, the hydraulic pressure in the second tank 102 increases; the second sensor 2102 detects the hydraulic pressure in the second tank 102 in real time and sends the detected data to the control mechanism 212, when the control mechanism 212 determines that the hydraulic pressure in the second tank 102 reaches the preset hydraulic pressure value, the control mechanism 212 controls the first discharge control valve 1115 to close and controls the second discharge control valve 1125 to open, and the liquid in the second tank 102 is discharged to the second discharge pipeline 1025.

[0114] When the reversing mechanism 103 drives the liquid in the second tank 102 to flow to the first tank 101, the first tank 101 is the tank that has not inhaled the multiphase mixture to be transported, the liquid in the first tank 101 increases, compressing the gas above the liquid surface, the compressed gas is discharged to the first discharge pipeline 1015, and at the same time, the hydraulic pressure in the first tank 101 increases; the first sensor 2101 detects the hydraulic pressure in the second tank 102 in real time and sends the detected data to the control mechanism 212, when the control mechanism 212 determines that the hydraulic pressure in the first tank 101 reaches the preset hydraulic pressure value, the control mechanism 212 controls the first discharge control valve 1115 to close and controls the second discharge control valve 1125 to open, and the liquid in the first tank 101 is discharged to the second discharge pipeline 1025.

[0115] In a second aspect, the present application provides a multiphase flow mixing and transporting device for implementing the multiphase flow mixing and transporting method.

[0116] In some embodiments of the present application, as shown in Figure 7 The multiphase flow mixing and transporting device includes a multiphase flow mixing and transporting mechanism 10 and an output mechanism 105 connected to the multiphase flow mixing and transporting mechanism 10.

[0117] The multiphase flow mixing and conveying mechanism 10 comprises a first tank body 101, a second tank body 102 and a reversing mechanism 103, the reversing mechanism 103 drives the liquid in the first tank body 101 and the second tank body 102 to reciprocate, so that the first tank body 101 and the second tank body 102 alternately form a vacuum suction cavity and / or a compression discharge cavity, to realize continuous mixing and conveying of liquid, gas or gas-liquid mixture.

[0118] The output mechanism 105 comprises a first discharge pipeline 1015 and a second discharge pipeline 1025, one end of the first discharge pipeline 1015 is communicated with the first tank body 101 and the second tank body 102, the communication port of the first discharge pipeline 1015 on the first tank body is 1051, the communication port of the first discharge pipeline 1015 on the second tank body is 1052, a one-way valve 1061 controls the opening and closing of the communication port 1051, and a one-way valve 1064 controls the opening and closing of the communication port 1052.

[0119] The other end of the first discharge pipeline 1015 is provided with a first discharge control valve 1115, the other end of the first discharge pipeline 1015 is connected with the second discharge pipeline 1025, and the second discharge pipeline 1025 is provided with a second discharge control valve 1125. The first discharge control valve 1115 is used to control the conduction and closure of the first discharge pipeline 1015, and the second discharge control valve 1025 is used to control the conduction and closure of the second discharge pipeline 1025.

[0120] When the first reversing valve 1033a is opened and the second reversing valve 1033b is closed, the liquid in the first tank body 101 flows to the second tank body 102 under the action of the power pump 1030 through the branch pipelines 1031a, 1031c and 1031b, and the first tank body 101 forms a vacuum suction cavity; under the action of negative pressure, the one-way valve 1062 is opened and the one-way valve 1061 is closed, and the multiphase flow mixture is sucked into the first tank body 101 through the first inlet 1041.

[0121] After the multiphase flow mixture is sucked into the first tank body 101, the gas and the liquid are separated, and the gas is located above the liquid surface. The liquid in the first tank body 101 flows to the second tank body 102 under the driving of the reversing mechanism 103, the liquid level in the second tank body 102 rises, and the gas above the liquid surface is compressed; the one-way valve 1063 is closed, the one-way valve 1064 is opened, the first discharge control valve 1115 is opened, and the second discharge control valve 1125 is closed, and the compressed gas in the second tank body 102 is discharged from the first discharge pipeline 1015. After the gas in the second tank body 102 is completely discharged, the control mechanism 212 controls the first discharge control valve 1115 to be closed and the second discharge control valve 1125 to be opened, and the liquid in the second tank body 102 is discharged from the second discharge pipeline 1025.

[0122] When the first reversing valve 1033a is closed and the second reversing valve 1033b is opened, the liquid in the second tank 102 flows to the first tank 101 through the branch pipelines 1032b, 1031c and 1032a under the action of the power pump 1030, and the second tank 102 forms a vacuum suction cavity; under the action of negative pressure, the one-way valve 1063 is opened and the one-way valve 1064 is closed, and the multiphase flow mixture is sucked into the second tank 102 through the second inlet 1042.

[0123] After the multiphase flow mixture is sucked into the second tank 102, the gas and the liquid are separated, and the gas is located above the liquid surface. 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 above the liquid surface is compressed; the one-way valve 1062 is closed, the one-way valve 1061 is opened, and at the same time, the first discharge control valve 1115 is opened and the second discharge control valve 1125 is closed, and the compressed gas in the first tank 101 is discharged from the first discharge pipeline 1015. After the gas in the first tank 101 is completely discharged, the control mechanism 212 controls the first discharge control valve 1115 to be closed and the second discharge control valve 1125 to be opened, and the liquid in the first tank 101 is discharged from the second discharge pipeline 1025.

[0124] In some embodiments of the present application, as shown in Figure 7 the multiphase flow mixing and conveying device further comprises a detection mechanism 211, the detection mechanism 211 comprising a first sensor 2101 arranged on the first tank 101 and a second sensor 2102 arranged on the second tank 102, the detection mechanism 211 being in electrical communication with the control mechanism 212; the control mechanism 212 being in electrical communication with the first discharge control valve 1115 and the second discharge control valve 1125, so as to control the opening and closing of the first discharge control valve 1115 and the second discharge control valve 1125 according to the detection result of the detection mechanism 211, thereby avoiding the liquid entering the gas conveying pipeline after passing through the first discharge control valve 1115 due to the untimely closing of the first discharge control valve 1115, which affects the conveying of the gas.

[0125] In some embodiments of the present application, the first sensor 2101 and the second sensor 2102 are liquid level meters, which are used to detect the liquid level in the first tank 101 or the second tank 102 and send the detected data to the control mechanism 212.

[0126] When the reversing mechanism 103 drives the liquid to flow from the first tank 101 to the second tank 102, the second tank 102 is the tank which has not inhaled the multiphase mixture to be delivered, the liquid level in the second tank 102 rises, the gas above the liquid surface is compressed, and the compressed gas is discharged to the first discharge pipeline 1015; a preset liquid level is set in the control mechanism 212 in advance, and the preset liquid level is the position of the second outlet 1052; when the liquid in the second tank 102 reaches the preset liquid level, the control mechanism 212 controls the first discharge control valve 1115 to be closed, and controls the second discharge control valve 1125 to be opened, and the liquid in the second tank 102 is discharged to the second control pipeline 1025.

[0127] When the reversing mechanism 103 drives the liquid to flow from the second tank 102 to the first tank 101, the first tank 101 is the tank which has not inhaled the multiphase mixture to be delivered, the liquid level in the first tank 102 rises, the gas above the liquid surface is compressed, and the compressed gas is discharged to the first discharge pipeline 1015; a preset liquid level is set in the control mechanism 212 in advance, and the preset liquid level is the position of the first outlet 1051; when the liquid in the first tank 101 reaches the preset liquid level, the control mechanism 212 controls the first discharge control valve 1115 to be closed, and controls the second discharge control valve 1125 to be opened, and the liquid in the first tank 101 is discharged to the second control pipeline 1025.

[0128] In some embodiments of the present application, the first sensor 2101 and the second sensor 2102 are hydraulic gauges, which are used to detect the hydraulic pressure in the first tank 101 or the second tank 102, and send the detected data to the control mechanism 212. A preset hydraulic pressure value is set in the control mechanism 212, and if the hydraulic pressure value in the first tank 101 or the second tank 102 reaches the preset hydraulic pressure value, the control mechanism 212 controls the first discharge control valve 1115 to be closed, and controls the second discharge control valve 1125 to be opened.

[0129] Specifically, when the reversing mechanism 103 drives the liquid in the first tank 101 to flow to the second tank 102, the second tank 102 is the tank which has not inhaled the multiphase mixture to be delivered, the liquid in the second tank 102 increases, the gas above the liquid surface is compressed, the compressed gas is discharged to the first discharge pipeline 1015, and the hydraulic pressure in the second tank 102 increases; the second sensor 2102 detects the hydraulic pressure in the second tank 102 in real time, and sends the detected data to the control mechanism 212; when the control mechanism 212 determines that the hydraulic pressure in the second tank 102 reaches a preset hydraulic pressure value, the control mechanism 212 controls the first discharge control valve 1115 to be closed, and controls the second discharge control valve 1125 to be opened, and the liquid in the second tank 102 is discharged to the second discharge pipeline 1025.

[0130] When the reversing mechanism 103 drives the liquid in the second tank body 102 to flow to the first tank body 101, the first tank body 101 is a tank body that has not inhaled the multiphase mixture to be delivered, the liquid in the first tank body 101 increases, the gas above the liquid surface is compressed, the compressed gas is discharged to the first discharge pipeline 1015, and the liquid pressure in the first tank body 101 increases; the first sensor 2101 detects the liquid pressure in the second tank body 102 in real time and sends the detected data to the control mechanism 212; when the control mechanism 212 determines that the liquid pressure in the first tank body 101 reaches a preset liquid pressure value, the control mechanism 212 controls the first discharge control valve 1115 to be closed and controls the second discharge control valve 1125 to be opened, and the liquid in the first tank body 101 is discharged to the second discharge pipeline 1025.

[0131] In a third aspect, the present application provides a multiphase flow mixed delivery application system, the multiphase flow mixed delivery application system comprising the multiphase flow mixed delivery device provided in the embodiments of the present application, and each multiphase flow mixed delivery device is used to realize the separate delivery of gas and liquid.

[0132] The above describes in detail the multiphase flow mixed delivery method, the multiphase flow mixed delivery device and the multiphase flow mixed delivery application system provided in the embodiments of the present application. The principles and implementation manners of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed, and the above description of the present application should not be understood as a limitation of the present application.

Claims

1. A multiphase flow commingling method, characterized by, The method comprises the following steps: detecting whether the multiphase flow mixture to be transported is sucked into any one of the first tank and the second tank; judging whether the first tank or the second tank is the tank not sucking the multiphase flow mixture to be transported according to the opening and closing state of the inlet valve on the inlet pipeline connected with the first tank or the second tank, or judging which tank is the tank not sucking the multiphase flow mixture to be transported according to the liquid flow direction in the first tank or the second tank; if the multiphase flow mixture to be transported is sucked into one of the first tank and the second tank, transporting the liquid in the tank sucking the multiphase flow mixture to be transported into the tank not sucking the multiphase flow mixture to be transported, compressing the gas in the tank not sucking the multiphase flow mixture to be transported by the liquid entering the tank, and discharging the compressed gas in the tank not sucking the multiphase flow mixture to be transported to the first discharge pipeline connected with the tank; and discharging the liquid in the tank not sucking the multiphase flow mixture to be transported to the second discharge pipeline connected with the tank; in the step of discharging the liquid in the tank not sucking the multiphase flow mixture to be transported, the method comprises the following steps: judging whether the split-transport condition is reached; if the split-transport condition is reached, closing the first discharge control valve, opening the second discharge control valve, and discharging the liquid in the tank to the second discharge pipeline; wherein the step of judging whether the split-transport condition is reached comprises judging by the liquid pressure in the tank; in the step of judging whether the split-transport condition is reached, the method comprises the following steps: obtaining the liquid pressure in the tank not sucking the multiphase flow mixture to be transported; judging whether the liquid pressure reaches a preset liquid pressure value; if the liquid pressure reaches the preset liquid pressure value, judging that the split-transport condition is reached.

2. The multiphase flow commingling method of claim 1, wherein, in the step of detecting whether the multiphase flow mixture to be transported is sucked into any one of the first tank and the second tank, the method comprises the following steps: detecting the opening and closing state of the inlet valve on the inlet pipeline connected with the first tank, and detecting the opening and closing state of the inlet valve on the inlet pipeline connected with the second tank; if the inlet valve on the inlet pipeline connected with the first tank is opened and the inlet valve on the inlet pipeline connected with the second tank is closed, judging that the multiphase flow mixture to be transported is sucked into the first tank; otherwise, judging that the multiphase flow mixture to be transported is sucked into the second tank.

3. The multiphase flow commingling method of claim 1, wherein, in the step of detecting whether the multiphase flow mixture to be transported is sucked into any one of the first tank and the second tank, the method comprises the following steps: detecting the liquid flow direction between the first tank and the second tank; if the liquid flows from the first tank to the second tank, judging that the multiphase flow mixture to be transported is sucked into the first tank; otherwise, judging that the multiphase flow mixture to be transported is sucked into the second tank.

4. A multiphase flow mixing device, characterized by The multiphase flow mixing and transporting device is used to execute the multiphase flow mixing and transporting method according to any one of claims 1 to 3, and comprises a multiphase flow mixing and transporting mechanism and an output mechanism connected with the multiphase flow mixing and transporting mechanism. The multiphase flow mixing and conveying device comprises a first tank, a second tank and a reversing mechanism, the reversing mechanism drives the liquid in the first tank and the second tank to reciprocate, the first tank and the second tank alternately form a vacuum suction cavity and / or a compression discharge cavity, so as to realize continuous mixing and conveying of liquid, gas or gas-liquid mixture. The output mechanism comprises a first discharge pipeline and a second discharge pipeline; one end of the first discharge pipeline is communicated with the first tank and the second tank; The other end of the first discharge pipeline is provided with a first discharge control valve, the other end of the first discharge pipeline is connected with the second discharge pipeline, the second discharge pipeline is provided with a second discharge control valve; a flow detection mechanism is arranged on the inlet pipeline, and the inlet valve is a one-way valve.

5. The multiphase flow mixing device of claim 4, wherein, The multiphase flow mixing and conveying device further comprises a detection mechanism, the detection mechanism is arranged on the first tank and the second tank, and the detection mechanism is electrically connected with the first discharge control valve and the second discharge control valve.

6. The multiphase flow mixing device of claim 5, wherein, The detection mechanism is one of a liquid level detection mechanism, a hydraulic pressure detection mechanism and an air pressure detection mechanism.

7. A multiphase flow commingling system, comprising: The multiphase flow mixing and conveying device comprises a first tank, a second tank and a reversing mechanism, the reversing mechanism drives the liquid in the first tank and the second tank to reciprocate, the first tank and the second tank alternately form a vacuum suction cavity and / or a compression discharge cavity, so as to realize continuous mixing and conveying of liquid, gas or gas-liquid mixture.

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