Plug flow elimination method and related apparatus

Abstract

The application discloses a plug flow elimination method and related equipment, and relates to the technical field of fluid mechanics, and comprises the following steps: in response to a plug flow detection instruction, parameters of gas-liquid two-phase fluid in a gas-liquid two-phase pipeline are acquired; based on the parameters and a preset gas-liquid two-phase fluid state detection strategy, the state of the gas-liquid two-phase fluid is determined; if the state is plug flow, based on a preset plug flow elimination strategy, a target gas for eliminating the plug flow is generated; and the target gas is introduced into the gas-liquid two-phase pipeline to eliminate the plug flow. Based on the type corresponding to the pipeline, the application selects a related formula to calculate and determine whether plug flow exists; if plug flow exists, based on a preset plug flow elimination strategy, the best method for changing the plug flow into other flow is determined; based on the best method, the above-mentioned formula is used to back-calculate the gas required for destroying the plug flow, and the gas is introduced into the plug flow to destroy the plug flow.

Description

Technical Field

[0001] This application relates to the field of fluid mechanics technology, and in particular to plunger flow elimination methods and related equipment. Background Technology

[0002] In existing pipeline transportation technologies, especially in cryogenic fractionation processes, plunger flow is a common phenomenon. Plunger flow is a specific flow pattern in which gas and liquid advance alternately in a plunger-like manner. This flow pattern leads to pressure fluctuations and uneven flow rates within the pipeline. These fluctuations not only affect the stability of the cryogenic fractionation process but may also cause equipment wear and increased energy consumption, thereby reducing the overall system efficiency. Therefore, effectively eliminating plunger flow and optimizing the flow state within the pipeline to improve the stability and efficiency of cryogenic fractionation is a pressing issue that needs to be addressed in current technology.

[0003] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main objective of this application is to provide a method and related equipment for eliminating plunger flow, aiming to solve the technical problem of how to eliminate plunger flow.

[0005] To achieve the above objectives, this application proposes a plunger flow elimination method, which includes:

[0006] In response to the plunger flow detection command, the parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline are acquired;

[0007] Based on the parameters and the preset gas-liquid two-phase fluid state detection strategy, the state of the gas-liquid two-phase fluid is determined;

[0008] If the state is a plunger flow, a target gas for eliminating the plunger flow is generated based on a preset plunger flow elimination strategy.

[0009] The target gas is introduced into the gas-liquid two-phase pipeline to eliminate plunger flow.

[0010] In one embodiment, the step of determining the state of the gas-liquid two-phase fluid based on the parameters and a preset gas-liquid two-phase fluid state detection strategy further includes:

[0011] Determine the pipe type corresponding to the gas-liquid two-phase pipeline;

[0012] Based on the pipeline type and the preset gas-liquid two-phase fluid state detection strategy, a target algorithm and a target flow pattern are determined for determining the state of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline.

[0013] Based on the target algorithm, the parameters, and the target flow pattern, the state of the gas-liquid two-phase fluid is determined.

[0014] In one embodiment, if the target flow pattern is the Mandelbrot flow pattern, the step of determining the state of the gas-liquid two-phase fluid based on the target algorithm and the parameters further includes:

[0015] Based on the target algorithm and the parameters, calculate the apparent flow velocity of the liquid phase and the apparent flow velocity of the gas-liquid two-phase fluid;

[0016] Based on the apparent flow rate of the liquid phase and the apparent flow rate of the gas phase, the target region corresponding to the gas-liquid two-phase fluid in the Mandelham flow pattern is determined;

[0017] Based on the target region, the state of the gas-liquid two-phase fluid is determined.

[0018] In one embodiment, the step of generating a target gas for eliminating the plunger flow based on a preset plunger flow elimination strategy further includes:

[0019] Based on the preset strategy generation model, a target strategy is determined to transform the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0020] Based on the target strategy and the target algorithm, a target gas is determined to transform the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0021] In one embodiment, the target gas has the same gas type as the gas in the gas-liquid two-phase fluid, and the target gas has the same temperature as the gas in the gas-liquid two-phase fluid.

[0022] In one embodiment, before the step of generating the model based on a preset strategy, the method further includes:

[0023] Obtain sample data, wherein the strategy corresponding to the sample data is the first strategy;

[0024] The sample data is processed using the current strategy generation model to generate a second strategy;

[0025] Determine whether the first strategy and the second strategy are consistent;

[0026] If they are inconsistent, modify the parameters of the current strategy generation model, and based on the modified current strategy generation model, return to the step of processing the sample data using the current strategy generation model until the first strategy and the second strategy are consistent, and obtain the preset strategy generation model.

[0027] Furthermore, to achieve the above objectives, this application also proposes a plunger flow elimination device, which includes:

[0028] The acquisition module is used to acquire parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline in response to the plunger flow detection command.

[0029] The determination module is used to determine the state of the gas-liquid two-phase fluid based on the parameters and a preset gas-liquid two-phase fluid state detection strategy.

[0030] A generation module is configured to generate a target gas for eliminating the plunger flow if the state is a plunger flow, based on a preset plunger flow elimination strategy.

[0031] An elimination module is used to introduce the target gas into the gas-liquid two-phase pipeline to eliminate plunger flow.

[0032] In one embodiment, the determining module further includes:

[0033] The first determining unit is used to determine the pipe type corresponding to the gas-liquid two-phase pipe;

[0034] The second determining unit is used to determine, based on the pipeline type and the preset gas-liquid two-phase fluid state detection strategy, a target algorithm and a target flow pattern for determining the state of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline.

[0035] The third determining unit is used to determine the state of the gas-liquid two-phase fluid based on the target algorithm, the parameters, and the target flow pattern.

[0036] In one embodiment, the determining module further includes:

[0037] The calculation unit is used to calculate the apparent flow velocity of the liquid phase and the apparent flow velocity of the gas-liquid two-phase fluid based on the target algorithm and the parameters.

[0038] The fourth determining unit is used to determine the target region corresponding to the gas-liquid two-phase fluid in the Mandelbrot flow pattern based on the apparent flow rate of the liquid phase and the apparent flow rate of the gas phase.

[0039] The fifth determining unit is used to determine the state of the gas-liquid two-phase fluid based on the target area.

[0040] In one embodiment, the generation module further includes:

[0041] The sixth determining unit is used to generate a model based on a preset strategy and determine the target strategy for changing the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0042] The seventh determining unit is used to determine, based on the target strategy and the target algorithm, the target gas used to transform the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0043] In one embodiment, the plunger flow elimination device is further configured to achieve:

[0044] The target gas has the same gas type as the gas in the gas-liquid two-phase fluid, and the target gas has the same gas temperature as the gas in the gas-liquid two-phase fluid.

[0045] In one embodiment, the generation module further includes:

[0046] An acquisition unit is used to acquire sample number data, wherein the strategy corresponding to the sample data is a first strategy.

[0047] The generation unit is used to process the sample data using the current strategy generation model to generate a second strategy;

[0048] A judgment unit is used to determine whether the first strategy and the second strategy are consistent;

[0049] The training unit is used to modify the parameters of the current policy generation model if there is a discrepancy, and based on the modified current policy generation model, return to the step of processing the sample data using the current policy generation model until the first policy and the second policy are consistent, thus obtaining a preset policy generation model.

[0050] In addition, to achieve the above objectives, this application also proposes a plunger flow elimination device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the plunger flow elimination method as described above.

[0051] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the plunger flow elimination method described above.

[0052] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the plunger flow elimination method described above.

[0053] One or more technical solutions proposed in this application have at least the following technical effects:

[0054] This application proposes a method and related equipment for eliminating plunger flow, relating to the field of fluid mechanics. In related technologies, plunger flow is a common phenomenon in pipelines. Plunger flow is a special flow pattern in which gas and liquid alternately advance in a plunger-like manner. This flow pattern leads to pressure fluctuations and uneven flow velocity within the pipeline. These fluctuations not only affect the stability of cryogenic fractionation processes but may also cause equipment wear and increased energy consumption, thereby reducing the overall system efficiency. In this application, firstly, in response to a plunger flow detection command, parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline are acquired. Then, based on the parameters and a preset gas-liquid two-phase fluid state detection strategy, the state of the gas-liquid two-phase fluid is determined. Further, if the state is plunger flow, a target gas for eliminating the plunger flow is generated based on a preset plunger flow elimination strategy. Finally, the target gas is introduced into the gas-liquid two-phase pipeline to eliminate the plunger flow.

[0055] Understandably, this application selects relevant formulas to calculate based on the type of pipeline to determine whether a plunger flow exists. If it does, it determines the best method to transform the plunger flow into other flows based on a preset plunger flow elimination strategy. Based on the best method, it uses the above formula to deduce the gas required to disrupt the plunger flow and introduces the gas into the plunger flow to disrupt it. Attached Figure Description

[0056] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0057] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a schematic flowchart of an embodiment of the plunger flow elimination method of this application;

[0059] Figure 2 This is a schematic flowchart of Embodiment 2 of the plunger flow elimination method of this application;

[0060] Figure 3 This is a schematic flowchart of Embodiment 3 of the plunger flow elimination method of this application;

[0061] Figure 4 This is a schematic diagram of the module structure of the plunger flow elimination device according to an embodiment of this application;

[0062] Figure 5This is a schematic diagram of the device structure of the hardware operating environment involved in the plunger flow elimination method in the embodiments of this application.

[0063] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0064] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0065] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0066] The main solution in this application embodiment is:

[0067] In this embodiment, for ease of description, the plunger flow elimination device will be used as the execution subject in the following description.

[0068] Due to current technology, plunger flow often occurs within pipelines. Plunger flow is a special flow pattern in which gas and liquid advance alternately in a plunger-like manner. This flow pattern leads to pressure fluctuations and uneven flow rates within the pipeline. These fluctuations not only affect the stability of the cryogenic fractionation process but may also cause equipment wear and increased energy consumption, thereby reducing the overall system efficiency.

[0069] This application provides a solution in which: first, in response to a plunger flow detection command, parameters of a gas-liquid two-phase fluid in a gas-liquid two-phase pipeline are acquired; then, based on the parameters and a preset gas-liquid two-phase fluid state detection strategy, the state of the gas-liquid two-phase fluid is determined; further, if the state is a plunger flow, a target gas for eliminating the plunger flow is generated based on a preset plunger flow elimination strategy; finally, the target gas is introduced into the gas-liquid two-phase pipeline to eliminate the plunger flow.

[0070] Understandably, this application selects relevant formulas to calculate based on the type of pipeline to determine whether a plunger flow exists. If it does, it determines the best method to transform the plunger flow into other flows based on a preset plunger flow elimination strategy. Based on the best method, it uses the above formula to deduce the gas required to disrupt the plunger flow and introduces the gas into the plunger flow to disrupt it.

[0071] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or plunger flow elimination device capable of performing the above functions. The following description uses a plunger flow elimination device as an example to illustrate this embodiment and the subsequent embodiments.

[0072] Based on this, embodiments of this application provide a plunger flow elimination method, referring to... Figure 1 , Figure 1 This is a schematic flowchart of the first embodiment of the plunger flow elimination method of this application.

[0073] In this embodiment, the plunger flow elimination method includes steps S10 to S40:

[0074] Step S10: In response to the plunger flow detection command, acquire the parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline;

[0075] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or plunger flow elimination device capable of performing the above functions. The following description uses a plunger flow elimination device as an example to illustrate this embodiment and the subsequent embodiments.

[0076] It should be noted that plunger flow is a special fluid flow pattern, generally referring to the movement of fluid in a pipe in a plunger-like (piston-like) manner. This flow pattern may occur in some industrial pipeline systems (such as oil and gas pipelines), especially when the fluid phase (such as gas-liquid two-phase) is complex.

[0077] A detection command is a signal or command that triggers a detection operation. It may be triggered by manual operation, an automated control system, or some kind of sensor, with the purpose of initiating the detection of the fluid state within the pipeline.

[0078] Two-phase fluids refer to fluids in which both gas and liquid phases exist simultaneously within a pipe. In this case, the flow characteristics of the fluid are more complex than those of single-phase fluids because the physical properties of the gas and liquid differ significantly, such as density and viscosity, and their interaction affects the overall flow behavior.

[0079] A pipeline is a channel for fluid flow and a carrier for fluid transport. In this context, the fluid state within the pipeline needs to be monitored and analyzed.

[0080] Parameters are physical quantities that describe the state of a fluid, such as flow velocity, flow rate, pressure, temperature, and gas-liquid phase content (the ratio of gas to liquid). These parameters are crucial for understanding the flow characteristics of fluids, optimizing pipeline transportation efficiency, and ensuring the safe operation of pipelines.

[0081] In this application, upon receiving a command specifically for detecting plunger flow, the system initiates a detection program to measure and acquire various parameters of the gas-liquid two-phase fluid in the pipeline. These parameters may include gas and liquid flow velocities, flow rates, pressures, temperatures, etc., used to analyze the flow state of the fluid within the pipeline for further processing or decision-making.

[0082] Specific application scenarios could be:

[0083] Taking air separation as an example, the most commonly used air separation method is cryogenic distillation. This method uses a deep-freezing compression cycle to liquefy air, and then, through cryogenic distillation, separates inert gases such as oxygen, nitrogen, and argon from the liquid air based on their different boiling points. At this point, both gas and liquid exist in the distillation pipeline. By monitoring the plunger flow and obtaining relevant parameters, air separation efficiency can be optimized, and pipeline blockage can be prevented.

[0084] Step S20: Determine the state of the gas-liquid two-phase fluid based on the parameters and the preset gas-liquid two-phase fluid state detection strategy;

[0085] Preset refers to pre-defined rules, models, or algorithms used to analyze and determine fluid states. These strategies are typically developed based on experience, experimental data, or theoretical models.

[0086] Gas-liquid two-phase fluid state detection strategies refer to rules or methods specifically designed for analyzing the state of gas-liquid two-phase fluids. These strategies include: threshold judgment, for example, determining a specific state when the gas-liquid phase content exceeds a certain threshold; pattern recognition, identifying fluid states by analyzing patterns of parameter changes (such as flow rate fluctuations or periodic pressure changes); and machine learning models, using trained models (such as neural networks or support vector machines) to classify or predict parameters.

[0087] It should be noted that the states of gas-liquid two-phase fluids include plunger flow, block flow, bubble flow, stratified flow, and wave flow.

[0088] In this embodiment, the specific state of the gas-liquid two-phase fluid (such as plunger flow, block flow, bubbly flow, stratified flow, wave flow, etc.) is determined by analyzing the acquired fluid parameters (such as flow velocity, flow rate, pressure, etc.) and combining them with a pre-set gas-liquid two-phase fluid state detection strategy (such as threshold judgment, pattern recognition or machine learning model).

[0089] It should be noted that in order to determine whether a gas-liquid two-phase flow is a plug flow, the following key parameters need to be measured: Flow velocity (v): the flow velocities of the gas and liquid.

[0090] Gas-liquid phase content (α): The proportion of gas volume to total volume.

[0091] Pipe diameter (D): The inner diameter of the pipe.

[0092] Physical properties of fluids: such as the density of gases and liquids ( and ) and viscosity ( and ).

[0093] Plunger flow typically occurs at high flow rates and high gas-liquid fill ratios. The following empirical formula can be used for preliminary identification:

[0094]

[0095] Where: Re is the Reynolds number, used to determine the flow state. It is the density of the fluid. D is the fluid velocity, and D is the pipe diameter. It is the dynamic viscosity of the fluid.

[0096] For gas-liquid two-phase flow, the Reynolds numbers of the gas and liquid can be calculated separately. If the Reynolds number of the gas is high (usually...), then... If the value is greater than 4000, a plunger flow may form.

[0097] Meanwhile, the gas-liquid phase content ( This is also an important parameter for judging plunger flow. Generally speaking, when the gas-liquid phase content is high (e.g., ...), the flow rate is higher. When the value is greater than 0.3, it is easier to form a plunger flow.

[0098] You can refer to flow pattern diagrams for gas-liquid two-phase flow (such as Beggs-Brill diagrams or Mandhane diagrams). These diagrams determine the flow pattern based on the gas-liquid phase holdup and flow velocity. For example, if the gas-liquid phase holdup is high and the flow velocity is high, it will usually fall into the plunger flow region.

[0099] Specifically, the step of determining the state of the gas-liquid two-phase fluid based on the parameters and the preset gas-liquid two-phase fluid state detection strategy further includes steps S21 to S24:

[0100] Step S21: Determine the pipe type corresponding to the gas-liquid two-phase pipe;

[0101] It should be noted that, in this application, pipe type refers to either a horizontal pipe or a vertically upward pipe.

[0102] Additionally, it should be noted that the methods for determining the state of the gas-liquid two-phase fluid in a pipeline differ depending on the type of pipeline. For example, for horizontal pipelines, the Mandelham flow model or Burke flow model is recommended to determine the state of the gas-liquid two-phase fluid; for vertically upward pipelines, the Hywitt flow model is recommended.

[0103] Step S22: Based on the pipeline type and the preset gas-liquid two-phase fluid state detection strategy, determine the target algorithm and target flow pattern for determining the state of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline;

[0104] The target algorithm refers to the specific algorithm selected from the preset detection strategy to analyze the state of the gas-liquid two-phase fluid in the pipeline. The choice of algorithm depends on the type of pipeline and the characteristics of the fluid. For example, if the pipeline is used for high-velocity transport, an algorithm based on the Reynolds number might be chosen to determine the flow pattern. If the pipeline has a heating device, an algorithm that considers the temperature effect might be selected. If the flow pattern in the pipeline is complex, a machine learning-based algorithm might be chosen.

[0105] The target flow pattern refers to the flow pattern diagram used to determine the fluid state, such as the Mandelham flow pattern, Burke flow pattern, and Hywitt flow pattern.

[0106] In this embodiment, based on the determined pipeline type and the preset gas-liquid two-phase fluid state detection strategy (such as threshold judgment, pattern recognition, machine learning model, etc.), the most suitable algorithm (target algorithm) is selected, and the manifold diagram (target flow pattern) used to determine the gas-liquid two-phase fluid state in the pipeline is determined.

[0107] Step S23: Determine the state of the gas-liquid two-phase fluid based on the target algorithm, the parameters, and the target flow pattern.

[0108] In this embodiment, by selecting appropriate algorithms and flow patterns based on specific application scenarios (pipeline types), it can be applied to various industrial scenarios, such as air separation, oil and gas pipeline monitoring, chemical process control, and environmental monitoring, in order to optimize operating conditions and improve efficiency and safety.

[0109] Step S30: If the state is a plunger flow, generate a target gas to eliminate the plunger flow based on a preset plunger flow elimination strategy;

[0110] Preset plunger flow elimination strategies refer to a pre-defined set of rules, methods, or operational procedures used to eliminate plunger flow. These strategies include:

[0111] Adjusting flow rate: By changing the flow rate of gas or liquid, the flow pattern can be changed from plunger flow to other more stable flow patterns.

[0112] Changing the gas-liquid phase content: By adjusting the ratio of gas to liquid, the flow pattern is altered.

[0113] Mechanical intervention: Breaking the plunger flow by installing special piping devices (such as mixers, energy dissipators, etc.).

[0114] In this application, a specific gas is generated or adjusted according to a preset plunger flow elimination strategy to help eliminate plunger flow. Specific methods include: changing the flow pattern by increasing or decreasing the gas flow rate; and influencing the fluid flow state by changing the gas injection location or method.

[0115] In this embodiment, if the gas-liquid two-phase fluid is detected to be in a plunger flow state, a specific gas is generated or adjusted according to a pre-set plunger flow elimination strategy to help eliminate the plunger flow. This process typically involves adjusting the gas flow rate, temperature, composition, or injection method to change the fluid flow pattern.

[0116] The target gas has the same gas type as the gas in the gas-liquid two-phase fluid, and the target gas has the same gas temperature as the gas in the gas-liquid two-phase fluid.

[0117] It should be noted that gas category refers to the type or composition of the gas. For example, a gas can be nitrogen (…). ),oxygen( ),carbon dioxide( (or any other specific gas).

[0118] Gas type in a gas-liquid two-phase fluid: This refers to the types of gases actually present in the gas-liquid two-phase fluid. For example, in a gas-liquid two-phase fluid system, the gas may be air (mainly composed of nitrogen and oxygen) or a specific industrial gas.

[0119] For example, if the gas in a gas-liquid two-phase fluid is nitrogen, then the target gas must also be nitrogen, and not any other gas. This consistency ensures the accuracy and comparability of experiments or operations.

[0120] The gas temperature in a gas-liquid two-phase fluid refers to the actual temperature of the gas in the gas-liquid two-phase fluid.

[0121] For example, if the gas temperature in a gas-liquid two-phase fluid is 30°C, then the temperature of the target gas must also be 30°C. This temperature consistency ensures the similarity of the gases in their physical properties (such as density and viscosity), thereby guaranteeing the accuracy and reliability of the experiment or operation.

[0122] Understandably, in a specific experiment, test, or operation, the target gas must not only be identical in type to the gas in the gas-liquid two-phase fluid, but also in temperature. This consistency ensures the accuracy and comparability of the experiment or operation, avoiding errors or uncertainties caused by differences in gas type or temperature. In industrial processes, this condition can be used to ensure the stability and safety of the production process. For example, in oil and gas pipelines, if it is necessary to detect the gas composition and temperature within the pipeline, the type and temperature of the target gas must be consistent with the actual gas in the pipeline to ensure the accuracy of the detection results. In safety assessments, this condition can be used to ensure the accuracy and reliability of the assessment. For example, when assessing the safety of a gas-liquid two-phase fluid system, the type and temperature of the target gas must be consistent with the gas in the actual fluid to ensure the accuracy of the assessment results.

[0123] Specifically, the step of generating a target gas for eliminating the plunger flow based on a preset plunger flow elimination strategy further includes steps S31 to S32:

[0124] Step S31: Based on the preset strategy generation model, determine the target strategy for transforming the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0125] It should be noted that the preset strategy generation model is a pre-designed model or algorithm used to generate specific strategies.

[0126] It should be noted that slug flow is a flow pattern in which gas and liquid flow in alternating slug-like forms. Its characteristics include: gas and liquid alternating in large slugs; significant pressure fluctuations may occur during the flow; and it typically occurs at moderate flow velocities and gas-liquid phase holdup.

[0127] Annular flow is a flow pattern in which gas is dispersed in a liquid as bubbles, forming annular flow. Its characteristics include: gas is dispersed in the liquid as small bubbles; the flow is relatively stable with minimal pressure fluctuations; and it typically occurs at lower flow rates and lower gas-liquid phase contents.

[0128] The target strategy is a specific operational scheme determined by the model based on the preset strategy, used to transform the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0129] In this application, a pre-defined strategy generation model is used to determine specific strategies to transform the state of a gas-liquid two-phase fluid from plunger flow to block flow or foam flow. This process involves adjusting fluid parameters (such as flow rate, gas-liquid phase content, temperature, etc.) to achieve the desired flow pattern.

[0130] Step S32: Based on the target strategy and the target algorithm, determine the target gas used to transform the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0131] In this application, by combining a target strategy and a target algorithm, a specific gas (target gas) is identified. This gas, by adjusting its properties (such as flow rate, temperature, composition, etc.), helps to transform the state of a gas-liquid two-phase fluid from plunger flow to block flow or foam flow. This process involves the following steps:

[0132] Step S40: The target gas is introduced into the gas-liquid two-phase pipeline to eliminate plunger flow.

[0133] Eliminating slug flow refers to transforming slug flow into other, more stable, and efficient flow patterns through certain methods or measures. Slug flow can lead to reduced fluid transport efficiency and increased energy consumption.

[0134] Specifically, the steps for introducing the target gas into the gas-liquid two-phase pipeline to eliminate plunger flow are as follows:

[0135] First, a suitable injection location is selected, typically upstream or midway through the pipeline. Then, the target gas is introduced into the pipeline using a specialized injection device (such as a nozzle or mixer). Further, the fluid state within the pipeline is monitored in real-time by sensors to ensure the effective introduction of the target gas. Finally, based on the monitoring results, the characteristics of the target gas (such as flow rate, temperature, and composition) are dynamically adjusted to ensure that the plunger flow is effectively eliminated.

[0136] This application proposes a method and related equipment for eliminating plunger flow, relating to the field of fluid mechanics. In related technologies, plunger flow is a common phenomenon in pipelines. Plunger flow is a special flow pattern in which gas and liquid alternately advance in a plunger-like manner. This flow pattern leads to pressure fluctuations and uneven flow velocity within the pipeline. These fluctuations not only affect the stability of cryogenic fractionation processes but may also cause equipment wear and increased energy consumption, thereby reducing the overall system efficiency. In this application, firstly, in response to a plunger flow detection command, parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline are acquired. Then, based on the parameters and a preset gas-liquid two-phase fluid state detection strategy, the state of the gas-liquid two-phase fluid is determined. Further, if the state is plunger flow, a target gas for eliminating the plunger flow is generated based on a preset plunger flow elimination strategy. Finally, the target gas is introduced into the gas-liquid two-phase pipeline to eliminate the plunger flow.

[0137] Understandably, this application selects relevant formulas to calculate based on the type of pipeline to determine whether a plunger flow exists. If it does, it determines the best method to transform the plunger flow into other flows based on a preset plunger flow elimination strategy. Based on the best method, it uses the above formula to deduce the gas required to disrupt the plunger flow and introduces the gas into the plunger flow to disrupt it.

[0138] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 If the target flow pattern is the Mandelham flow pattern, the step of determining the state of the gas-liquid two-phase fluid based on the target algorithm and the parameters further includes steps A1 to A3:

[0139] Step A1: Based on the target algorithm and the parameters, calculate the apparent flow velocity of the liquid phase and the apparent flow velocity of the gas-liquid two-phase fluid.

[0140] It should be noted that apparent velocity refers to the average velocity of one phase (gas or liquid) relative to the pipe wall in a gas-liquid two-phase flow. It takes into account the interphase interactions and flow patterns of the fluids.

[0141] Based on the target algorithm and actual measured parameters, the apparent flow rates of the liquid and gas phases are calculated. The specific steps are as follows:

[0142] First, the actual measured fluid parameters (such as flow rate, gas-liquid phase content, pressure, temperature, etc.) are input into the target algorithm. Then, the target algorithm performs calculations and analyses based on the input parameters. For example, the parameters are substituted into formulas or models to calculate the apparent flow rates of the liquid and gas phases. Alternatively, the parameters are input into a trained model to predict the apparent flow rates of the liquid and gas phases.

[0143] Step A2: Based on the apparent flow rate of the liquid phase and the apparent flow rate of the gas phase, determine the target region corresponding to the gas-liquid two-phase fluid in the Mandelham flow pattern;

[0144] It should be noted that the Mandelham flow pattern is a two-dimensional diagram used to classify flow patterns in gas-liquid two-phase flows. The diagram typically includes the following flow patterns:

[0145] Bubble flow: Gas is dispersed in a liquid in the form of small bubbles.

[0146] Slug Flow: Gas and liquid alternate in large slugs.

[0147] Annular Flow: Gas is dispersed in a liquid in the form of foam, forming an annular flow.

[0148] Plug flow: Gas and liquid move forward in a plunger-like (piston-like) manner.

[0149] In a Mandelbrot plot, the horizontal axis typically represents the apparent velocity in the gas phase, and the vertical axis represents the apparent velocity in the liquid phase. Different regions correspond to different flow patterns.

[0150] The target region refers to a specific area in a Mandelbrot flow pattern determined based on the apparent liquid and gas velocities. Each region corresponds to a specific flow pattern. For example:

[0151] Bubble flow region: low gas phase velocity, low gas-liquid phase content.

[0152] Block flow region: medium gas phase velocity, medium gas-liquid phase content.

[0153] Foam flow region: high gas phase velocity, high gas-liquid phase content.

[0154] Plunger flow region: high gas phase velocity, low gas-liquid phase content.

[0155] In this embodiment, the fluid's position on the Mandelbrot flow pattern is determined based on the calculated apparent gas velocity and gas-liquid phase holdup. The target region of the fluid is then determined according to its position on the flow pattern. For example, if the apparent gas velocity and gas-liquid phase holdup are low, the fluid may be in a bubbly flow region; if the apparent gas velocity and gas-liquid phase holdup are moderate, the fluid may be in a blocky flow region; and if the apparent gas velocity and gas-liquid phase holdup are high, the fluid may be in a foamy flow region.

[0156] The specific implementation example is as follows. Suppose that in a certain chemical plant, the actual measured parameters are as follows:

[0157] The gas flow rate is 10 s, liquid flow rate is 1 s, gas-liquid phase content ( The conditions are: 40% gas, pressure 5 MPa, temperature 30°C, and gas density 1.2. The liquid density is 1000. .

[0158] The apparent flow velocities calculated using the target algorithm are: 10 m / s for the gas phase and 1 m / s for the liquid phase. s.

[0159] On the Mandhan flow pattern diagram, based on the apparent gas phase velocity (10 s) and the apparent flow rate of the liquid phase is (1 s), determine the target region where the fluid is located. Assume the flow pattern diagram is as follows:

[0160] Bubble flow region: gas phase velocity <5 s, liquid phase flow rate <0.5 s.

[0161] Block flow region: 5 s≤ gas phase velocity≤15 s, 0.5m / s≤liquid phase velocity≤1.5 s.

[0162] Foam flow region: gas phase velocity > 15 s, liquid phase flow rate >1.5 s.

[0163] Based on the above parameters, the gas phase flow rate is 10. s, liquid phase flow rate is 1 s, the fluid is in the block flow region.

[0164] Step A3: Determine the state of the gas-liquid two-phase fluid based on the target region.

[0165] In this application, the specific flow pattern of the gas-liquid two-phase fluid is determined based on the target region. For example: if the target region is a bubbly flow region, the fluid state is bubbly flow; if the target region is a blocky flow region, the fluid state is blocky flow; if the target region is a foamy flow region, the fluid state is foamy flow; if the target region is a plunger flow region, the fluid state is plunger flow.

[0166] Based on the first and second embodiments of this application, in the third embodiment of this application, the content that is the same as or similar to that in embodiments one and two above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 Before the step of generating the model based on the preset strategy, steps B1 to B4 are also included:

[0167] Step B1: Obtain sample count data, wherein the strategy corresponding to the sample data is the first strategy;

[0168] Sample data refers to the data used for model training. Sample data can include various measurements, parameters, or observations, depending on the application scenario.

[0169] The first strategy refers to the true label corresponding to the sample data.

[0170] Step B2: Process the sample data using the current strategy generation model to generate a second strategy;

[0171] Current policy generation model: This is a pre-defined model or algorithm used to generate a policy based on the input sample data. The model can be based on empirical formulas, machine learning algorithms, or other rule engines.

[0172] In this embodiment, the sample data obtained in step B1 is input into the current policy generation model to obtain the second policy.

[0173] Step B3: Determine whether the first strategy and the second strategy are consistent;

[0174] Step B4: If there is no consistency, modify the parameters of the current strategy generation model. Based on the modified current strategy generation model, return to the step of processing the sample data using the current strategy generation model until the first strategy and the second strategy are consistent, and obtain the preset strategy generation model.

[0175] It should be noted that if the first strategy and the second strategy are inconsistent, the current strategy generation model needs adjustment. Based on the consistency judgment result, the parameters of the strategy generation model are adjusted. Parameter adjustment can be based on an optimization algorithm (such as gradient descent, genetic algorithm, etc.) or manually. Using the adjusted strategy generation model, the sample data obtained in step B1 is reprocessed. This is an iterative process; steps B2 to B4 are repeated until the first strategy and the second strategy are consistent. Once the first strategy and the second strategy are consistent, the current strategy generation model is considered the preset strategy generation model.

[0176] In this application, the model is trained iteratively according to the scenario, which can include improving adaptability and accuracy, enhancing generalization ability, optimizing performance, adapting to dynamically changing environments, improving interpretability and transparency, reducing complexity and overfitting risk, supporting multi-objective optimization, improving scalability, supporting online learning and real-time updates, and reducing development and maintenance costs.

[0177] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the plunger flow elimination method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0178] It should be noted that all user-related data involved in this application (such as user attribute data, user behavior data, and user geographical location, etc., the data types here should be modified according to the adaptability of the solution content) were obtained with the user's permission or consent; that is to say, when this application is applied to specific products or technologies, user permission is required to obtain and process the relevant data, and the processing of the relevant data must comply with the relevant laws, regulations and regulatory standards of the relevant countries and regions.

[0179] For example, when it is necessary to obtain a user's current geographical location, a location acquisition prompt can be displayed on the user's terminal. After receiving confirmation from the user regarding the location acquisition prompt, the terminal can obtain the user's current geographical location.

[0180] This application also provides a plunger flow elimination device, please refer to... Figure 4 The plunger flow elimination device includes:

[0181] Acquisition module 10, the acquisition module is used to acquire parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline in response to the plunger flow detection command;

[0182] Determining module 20, the determining module is used to determine the state of the gas-liquid two-phase fluid based on the parameters and the preset gas-liquid two-phase fluid state detection strategy;

[0183] Generation module 30, the generation module is used to generate target gas for eliminating the plunger flow based on a preset plunger flow elimination strategy if the state is a plunger flow;

[0184] Elimination module 40, the elimination module is used to introduce the target gas into the gas-liquid two-phase pipeline to eliminate plunger flow.

[0185] In one embodiment, the determining module further includes:

[0186] The first determining unit is used to determine the pipe type corresponding to the gas-liquid two-phase pipe;

[0187] The second determining unit is used to determine, based on the pipeline type and the preset gas-liquid two-phase fluid state detection strategy, a target algorithm and a target flow pattern for determining the state of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline.

[0188] The third determining unit is used to determine the state of the gas-liquid two-phase fluid based on the target algorithm, the parameters, and the target flow pattern.

[0189] In one embodiment, the determining module further includes:

[0190] The calculation unit is used to calculate the apparent flow velocity of the liquid phase and the apparent flow velocity of the gas-liquid two-phase fluid based on the target algorithm and the parameters.

[0191] The fourth determining unit is used to determine the target region corresponding to the gas-liquid two-phase fluid in the Mandelbrot flow pattern based on the apparent flow rate of the liquid phase and the apparent flow rate of the gas phase.

[0192] The fifth determining unit is used to determine the state of the gas-liquid two-phase fluid based on the target area.

[0193] In one embodiment, the generation module further includes:

[0194] The sixth determining unit is used to generate a model based on a preset strategy and determine the target strategy for changing the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0195] The seventh determining unit is used to determine, based on the target strategy and the target algorithm, the target gas used to transform the state of the gas-liquid two-phase fluid from plunger flow to block flow or foam flow.

[0196] In one embodiment, the plunger flow elimination device is further configured to achieve:

[0197] The target gas has the same gas type as the gas in the gas-liquid two-phase fluid, and the target gas has the same gas temperature as the gas in the gas-liquid two-phase fluid.

[0198] In one embodiment, the generation module further includes:

[0199] An acquisition unit is used to acquire sample number data, wherein the strategy corresponding to the sample data is a first strategy.

[0200] The generation unit is used to process the sample data using the current strategy generation model to generate a second strategy;

[0201] A judgment unit is used to determine whether the first strategy and the second strategy are consistent;

[0202] The training unit is used to modify the parameters of the current policy generation model if there is a discrepancy, and based on the modified current policy generation model, return to the step of processing the sample data using the current policy generation model until the first policy and the second policy are consistent, thus obtaining a preset policy generation model.

[0203] The plunger flow elimination device provided in this application, employing the plunger flow elimination method in the above embodiments, can solve the technical problem of plunger flow elimination. Compared with the prior art, the beneficial effects of the plunger flow elimination device provided in this application are the same as those of the plunger flow elimination method provided in the above embodiments, and other technical features in the plunger flow elimination device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0204] This application provides a plunger flow elimination device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the plunger flow elimination method in Embodiment 1 above.

[0205] The following is for reference. Figure 5The diagram illustrates a structural schematic suitable for implementing the plunger flow elimination device in the embodiments of this application. The plunger flow elimination device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The plunger flow elimination device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0206] like Figure 5 As shown, the plunger flow elimination device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the plunger flow elimination device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. Communication device 1009 allows the plunger flow elimination device to communicate wirelessly or wiredly with other devices to exchange data. Although plunger flow elimination devices with various systems are shown in the figures, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0207] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0208] The plunger flow elimination device provided in this application, employing the plunger flow elimination method in the above embodiments, can solve the technical problem. Compared with the prior art, the beneficial effects of the plunger flow elimination device provided in this application are the same as those of the plunger flow elimination method provided in the above embodiments, and other technical features of the plunger flow elimination device are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0209] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0210] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0211] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the plunger flow elimination method in the above embodiments.

[0212] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0213] The aforementioned computer-readable storage medium may be included in the plunger flow elimination device; or it may exist independently and not assembled into the plunger flow elimination device.

[0214] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the plunger flow elimination device, cause the plunger flow elimination device to:

[0215] In response to the plunger flow detection command, the parameters of the gas-liquid two-phase fluid in the gas-liquid two-phase pipeline are acquired;

[0216] Based on the parameters and the preset gas-liquid two-phase fluid state detection strategy, the state of the gas-liquid two-phase fluid is determined;

[0217] If the state is a plunger flow, a target gas for eliminating the plunger flow is generated based on a preset plunger flow elimination strategy.

[0218] The target gas is introduced into the gas-liquid two-phase pipeline to eliminate plunger flow.

[0219] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0220] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0221] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0222] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described plunger flow elimination method, thereby solving the technical problem of plunger flow elimination. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the plunger flow elimination method provided in the above embodiments, and will not be repeated here.

[0223] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the plunger flow elimination method described above.

[0224] The computer program product provided in this application can solve the technical problem of plunger flow elimination. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the plunger flow elimination method provided in the above embodiments, and will not be repeated here.

[0225] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. All equivalent structural transformations made under the technical concept of this application and using the content of this application specification and drawings, or direct / indirect applications in other related technical fields, are included in the scope of protection of this application.

Claims

1. A plug flow elimination method characterized by, The plug flow elimination method is applied to horizontal pipes or vertical upward pipes in a low-temperature fractionation scene, and comprises the following steps: In response to a plug flow detection instruction, parameters of gas-liquid two-phase fluid in a gas-liquid two-phase pipe are acquired; Based on the parameters and a preset gas-liquid two-phase fluid state detection strategy, a state of the gas-liquid two-phase fluid is determined, and the state of the gas-liquid two-phase fluid is determined based on a target algorithm; If the state is plug flow, a target gas for eliminating the plug flow is generated based on a preset plug flow elimination strategy, a gas category of the target gas is the same as a gas category in the gas-liquid two-phase fluid, a gas temperature of the target gas is the same as a gas temperature in the gas-liquid two-phase fluid, and the target gas is used to convert the state of the gas-liquid two-phase fluid from plug flow to block flow or foam flow; The target gas is introduced into the gas-liquid two-phase pipe to eliminate plug flow; The step of generating the target gas for eliminating the plug flow based on the preset plug flow elimination strategy further comprises the following steps: Based on a preset strategy generation model, a target strategy for converting the state of the gas-liquid two-phase fluid from plug flow to block flow or foam flow is determined; Based on the target strategy and the target algorithm, the target gas for converting the state of the gas-liquid two-phase fluid from plug flow to block flow or foam flow is determined; The step of determining the target gas based on the target strategy and the target algorithm further comprises the following steps: Based on the target strategy, the target gas required to destroy plug flow is deduced by using the target algorithm; After the step of introducing the target gas into the gas-liquid two-phase pipe to eliminate plug flow, the following step is further included: Real-time detection of plug flow elimination effects corresponding to the target gas is performed to dynamically adjust characteristics of the target gas, and the characteristics include flow rate, temperature, and composition.

2. The plug flow elimination method of claim 1, wherein, The step of determining the state of the gas-liquid two-phase fluid based on the parameters and the preset gas-liquid two-phase fluid state detection strategy further comprises the following steps: A pipe type corresponding to the gas-liquid two-phase pipe is determined; Based on the pipe type and the preset gas-liquid two-phase fluid state detection strategy, a target algorithm and a target flow pattern for determining the state of the gas-liquid two-phase fluid in the gas-liquid two-phase pipe are determined; Based on the target algorithm, the parameters, and the target flow pattern, the state of the gas-liquid two-phase fluid is determined.

3. The plug flow elimination method of claim 2, wherein, If the target flow pattern is a Mandhane flow pattern, the step of determining the state of the gas-liquid two-phase fluid based on the target algorithm and the parameters further comprises the following steps: Based on the target algorithm and the parameters, liquid phase apparent flow rate and gas phase apparent flow rate corresponding to the gas-liquid two-phase fluid are calculated; Based on the liquid phase apparent flow rate and the gas phase apparent flow rate, a target region corresponding to the gas-liquid two-phase fluid in the Mandhane flow pattern is determined; Based on the target region, the state of the gas-liquid two-phase fluid is determined.

4. The plug flow elimination method of claim 1, wherein, Before the step of generating the preset strategy generation model, the following step is further included: Sample data corresponding to a first strategy is acquired. processing the sample data using the current strategy generation model to generate a second strategy; determining whether the first strategy and the second strategy are consistent; if not, modifying parameters of the current strategy generation model, and returning to the step of processing the sample data using the current strategy generation model based on the modified current strategy generation model until the first strategy and the second strategy are consistent, to obtain a preset strategy generation model.

5. A plug flow elimination device characterized by, The plug flow elimination device comprises: An acquisition module is configured to acquire parameters of gas-liquid two-phase fluid in a gas-liquid two-phase pipeline in response to a plug flow detection instruction; A determination module is configured to determine a state of the gas-liquid two-phase fluid based on the parameters and a preset gas-liquid two-phase fluid state detection strategy, wherein the state of the gas-liquid two-phase fluid is determined based on a target algorithm; A generation module is configured to generate a target gas for eliminating the plug flow based on a preset plug flow elimination strategy if the state is plug flow, wherein the target gas has the same gas category as that of the gas-liquid two-phase fluid, the target gas has the same gas temperature as that of the gas-liquid two-phase fluid, and the target gas is used to convert the state of the gas-liquid two-phase fluid from plug flow to block flow or foam flow; An elimination module is configured to introduce the target gas into the gas-liquid two-phase pipeline to eliminate the plug flow. The plug flow elimination device is further configured to: determine a target strategy for converting the state of the gas-liquid two-phase fluid from plug flow to block flow or foam flow based on a preset strategy generation model; determine a target gas for converting the state of the gas-liquid two-phase fluid from plug flow to block flow or foam flow based on the target strategy and the target algorithm. The plug flow elimination device is further configured to: back-calculate the target gas required to destroy the plug flow based on the target strategy and the target algorithm. The plug flow elimination device is further configured to: real-time detect a plug flow elimination effect of the target gas to dynamically adjust characteristics of the target gas, wherein the characteristics include flow rate, temperature, and composition.

6. A plug flow eliminating device characterized by The device comprises a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is configured to implement the steps of the plug flow elimination method according to any one of claims 1 to 4.

7. A storage medium, characterized by The storage medium is a computer-readable storage medium, and the storage medium stores a computer program, wherein the computer program is executed by a processor to implement the steps of the plug flow elimination method according to any one of claims 1 to 4.

8. A computer program product, characterised in that, The computer program product comprises a computer program, wherein the computer program is executed by a processor to implement the steps of the plug flow elimination method according to any one of claims 1 to 4.

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