CN118520822B

CN118520822B - Simulation model construction method, device, equipment and medium of air lifter

Info

Publication number: CN118520822B
Application number: CN202410985738.1A
Authority: CN
Inventors: 葛铭; 魏江; 吴驰男; 沈井学
Original assignee: Hangzhou Baizijian Technology Co ltd
Current assignee: Hangzhou Baizijian Technology Co ltd
Priority date: 2024-07-23
Filing date: 2024-07-23
Publication date: 2024-10-18
Anticipated expiration: 2044-07-23
Also published as: CN118520822A

Abstract

The invention discloses a simulation model construction method, device, equipment and medium of an air lifter. Comprising the following steps: acquiring one or more of preset flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter; constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information; constructing a flow calculation sub-model based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information; constructing a flow pressure balance sub-model based on the flow parameter information, the pressure parameter information and the equipment parameter information; forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model; and carrying out simulation processing on the configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a corresponding simulation result. According to the scheme, the simulation model of the air lifter is accurately constructed, and the accuracy of the simulation result of the model is improved.

Description

Simulation model construction method, device, equipment and medium of air lifter

Technical Field

The present invention relates to the field of data processing technologies, and in particular, to a method, an apparatus, a device, and a medium for constructing a simulation model of an air lifter.

Background

The air lifter is a transmission device for conveying liquid by utilizing gas-liquid two-phase flow, and the pressure in the pipe and the hydrostatic pressure at the bottom of the liquid lifting pipe generate pressure difference to drive the conveying of the liquid by injecting compressed air into the liquid in the liquid lifting pipe. The existing dynamic simulation system does not specifically aim at a high-precision unit mechanism model of the air lifter, the simulation of the air lifter is only aimed at single equipment, the obtained modeling of the single air lifter is difficult to apply to the whole dynamic simulation system, the flowing process of air and liquid two phases of the air lifter cannot be well simulated, and the problems that the simulation effect of the simulation model is poor, the calculation speed is low and the calculation precision is low exist.

Disclosure of Invention

The invention provides a simulation model construction method, device, equipment and medium of an air lifter, which are used for solving the problems of poor simulation effect, low calculation speed and low calculation precision of the simulation model of the air lifter in the prior art.

According to an aspect of the present invention, there is provided a simulation model construction method of an air lifter, including:

Acquiring preset associated parameter information of the air lifter, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter;

constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information;

Constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information;

constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information;

forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model;

And carrying out simulation processing on the configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed.

Optionally, the flow parameter information includes a gas phase side flow parameter, a liquid phase side flow parameter, and an outlet side flow parameter of the air lifter; constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information, including: and determining an equivalent relation between flow parameter information based on a material conservation principle, and determining a flow conservation sub-model based on the equivalent relation, wherein the equivalent relation is the equivalent relation between the sum of the gas phase side flow parameter and the liquid phase side flow parameter and the outlet side flow parameter.

Optionally, the pressure parameter information comprises a gas-phase side pressure parameter and an outlet side pressure parameter, the equipment parameter information comprises pipe diameter information of the air lifter, the feeding information comprises the molar density and the average relative molecular weight of the gas-phase side, and the preset calibration information comprises the calibration pipe diameter, the calibration pressure drop, the calibration gas-phase side density and the calibration gas-phase side mass flow of the air lifter; constructing a flow calculation sub-model of the air lifter based on pressure parameter information, equipment parameter information, feeding information and preset calibration information, comprising: determining a flow coefficient based on a calibrated pipe diameter, a calibrated pressure drop, a calibrated gas phase side density and a calibrated gas phase side mass flow of the air lifter; determining the section air content of the air lifter, and determining the relative pipe diameter of the air lifter based on the section air content and the pipe diameter of the air lifter; and constructing a flow calculation sub-model of the air lifter based on the flow coefficient, the gas-phase side pressure parameter, the outlet side pressure parameter, the relative pipe diameter and the feeding information.

Optionally, determining the cross-sectional air content of the air lifter includes: acquiring gas phase side volume flow data and liquid phase side volume flow data of the air lifter at preset time; and determining the corresponding section gas content of the gas phase side based on the gas phase side volume flow data and the liquid phase side volume flow data at preset time.

Optionally, the flow parameter information includes a gas phase side mass flow parameter and a liquid phase side mass flow parameter, the equipment parameter information includes a length from a gas phase side inlet to a gas phase side outlet, a ground clearance of the gas phase side inlet and efficiency of the air lifter, the feeding information includes a liquid phase side density, and the pressure parameter information includes a gas phase side pressure parameter, a liquid phase side pressure parameter and an outlet side pressure parameter; constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feed information, and the equipment parameter information, comprising: acquiring an initial liquid level height of liquid storage equipment corresponding to the air lifter, and determining a lifting liquid height based on the length from a gas phase side inlet to an outlet, the ground height of the gas phase side inlet and the initial liquid level height; and constructing a flow pressure balance sub-model according to Bernoulli's law based on the gas phase side mass flow parameter, the liquid phase side mass flow parameter, the pressure parameter information, the feeding information and the liquid lifting height.

Optionally, the associated parameter information further includes a component parameter, where the component parameter includes a gas phase side component parameter, a liquid phase side component parameter, and an outlet side component parameter; the method further comprises the steps of: and constructing a component balance relation corresponding to the air lifter, and taking the obtained component balance relation as a component balance sub-model, wherein the component balance sub-model is a product of a gas phase side flow rate parameter, a product of a liquid phase side flow rate parameter and a corresponding component molar fraction, and the sum of the products of the gas phase side flow rate parameter and the liquid phase side flow rate parameter is equal to the product of an outlet side flow rate parameter and the corresponding component molar fraction.

Optionally, the method further comprises: determining enthalpy information of the air lifter; one or more of an output temperature of the air lifter, a gas component on an outlet side, and a liquid component on an outlet side are determined based on the pressure data, the enthalpy information, and the component balance sub-model.

According to another aspect of the present invention, there is provided a simulation model construction apparatus of an air lifter, comprising:

the parameter information acquisition module is used for acquiring preset associated parameter information of the air lifter, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter;

the flow conservation sub-model construction module is used for constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information;

The flow calculation sub-model construction module is used for constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information;

The flow pressure balance sub-model construction module is used for constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information;

the simulation model determining module is used for forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model;

the simulation result determining module is used for performing simulation processing on the configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed.

According to another aspect of the present invention, there is provided an electronic apparatus including:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the simulation model construction method of the air lifter of any embodiment of the present invention.

According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to execute a simulation model construction method of an air lifter according to any of the embodiments of the present invention.

According to the technical scheme, the preset associated parameter information of the air lifter is obtained, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter; constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information; constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information; constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information; forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model; the simulation model based on the air lifter carries out simulation processing on configuration information of the air lifter to be processed to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed, corresponding associated parameter data are reasonably set according to characteristics of a chemical process of the air lifter, and a flow conservation sub-model, a flow calculation sub-model and a flow pressure balance sub-model are respectively built based on one or more data in the associated parameter data, so that a simulation model corresponding to the air lifter is obtained, the obtained simulation model is more in accordance with an actual flowing process of materials in the air lifter, the problems of poor simulation effect, slow calculation speed and poor calculation precision of the simulation model of the existing air lifter are solved, the simulation effect of the simulation model of the air lifter is improved, dynamic simulation operation of the air lifter is simplified, and the calculation precision and the calculation speed of the simulation model of the air lifter are also remarkably improved.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a simulation model construction method of an air lifter according to an embodiment of the present invention;

FIG. 2 is a flow chart of a simulation model construction method of an air lifter according to a second embodiment of the present invention;

FIG. 3 is a schematic view of a simulation model construction apparatus of an air lifter according to a third embodiment of the present invention;

Fig. 4 is a schematic structural view of an electronic device implementing a simulation model construction method of an air lifter according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Fig. 1 is a flowchart of a simulation model construction method of an air lifter according to an embodiment of the present invention, where the method may be performed by a simulation model construction device of an air lifter, and the simulation model construction device of the air lifter may be implemented in hardware and/or software, and the simulation model construction device of the air lifter may be configured in electronic devices such as a computer and a server. As shown in fig. 1, the method includes:

S110, acquiring preset associated parameter information of the air lifter, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter.

The air lifter is a transmission device for conveying liquid by utilizing gas-liquid two-phase flow, and compressed air is injected into the liquid in the liquid lifting pipe, so that pressure difference is generated between the pressure in the pipe and the hydrostatic pressure at the bottom of the liquid lifting pipe to drive the liquid to be conveyed. The air lifter includes two feed ends and one discharge end, the two feed ends including an air feed end and a liquid feed end, which may also be referred to as a gas phase side and a liquid phase side of the air lifter, respectively. The associated parameter information may be specifically understood as parameters set for simulating the flow process of the material in the air lifter, and may be researched and analyzed during the actual operation process or the test process of the air lifter to determine parameters related to the flow process of the material processed by the air lifter, and the determined related parameters may be stored in a preset storage space, including but not limited to a configuration file, a database and a server; the relevant parameters can be adjusted according to the analysis of the dynamic process of the air lifter, so that the set relevant parameters can simulate the actual operation process more in line with the air lifter, the accuracy of the constructed simulation model of the air lifter is improved, and the simulation effect of the air lifter is improved; the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter, wherein the flow parameter information is characterized by flow information of an input end and an output end of the air lifter and comprises a gas phase side flow parameter, a liquid phase side flow parameter and an output side flow parameter, and the flow parameters can comprise a molar flow parameter, a volume flow parameter and a mass flow parameter; the pressure parameter information characterizes the pressure information of the input end and the output end of the air lifter, and comprises a gas-phase side pressure parameter, a liquid-phase side pressure parameter and an output side pressure parameter; the feed information is specifically material parameters characterizing the inlet side of the air lifter, including but not limited to molar density and average relative molecular weight; the equipment parameter information represents parameter information of the air lifter, including pipe diameter information of the air lifter, length from an air inlet to an air outlet of the air lifter, ground clearance height of the air inlet of the air lifter and efficiency of the air lifter; the preset calibration information represents information obtained by carrying out calibration treatment on the air lifter in advance, and comprises a calibration pipe diameter, a calibration pressure drop, a calibration gas phase side density and a calibration gas phase side mass flow of the air lifter.

Specifically, preset associated parameter information matched with the air lifter can be obtained from a preset storage space, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter, and is used for subsequently constructing a simulation model of the air lifter.

S120, constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information.

It will be appreciated that an air lifter is an apparatus having two feeds and one discharge, the parameters of each of the feeds including corresponding flow parameters, which may be, for example, parameters indicative of molar flow. Since no other stream is present, the sum of the flows of the two feeds can be determined to be equal to the flow of the discharge according to the principle of conservation of material. Specifically, a corresponding material conservation relation exists between flow parameters of the air lifter, an equivalent relation of the corresponding flow conservation can be determined according to the flow parameters of the air lifter, and the obtained equivalent relation is determined as a flow conservation sub-model corresponding to the air lifter.

Specifically, it may be determined that the material on the input side of the air lifter is equal to the material on the outlet side according to the principle of conservation of material, and in the case that the gas-phase side flow parameter, the liquid-phase side flow parameter, and the outlet-side flow parameter of the air lifter have been determined, an equivalent relationship between flow parameter information, that is, the sum of the gas-phase side flow parameter and the liquid-phase side flow parameter is equal to the outlet-side flow parameter, may be determined according to the principle of conservation of material, and the obtained equivalent relationship is determined as a flow conservation submodel.

Illustratively, the flow parameter is specifically molar flow, and the flow conservation submodel is:

Wherein, Is the molar flow rate of the gas phase side,Is the molar flow rate of the liquid phase side,Is the molar flow rate at the outlet side.

S130, constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information.

The parameters of each strand of material corresponding to the air lifter further comprise corresponding pressure parameter information, the pressure parameter information is used for representing pressure information generated when each strand of material flows through a corresponding inlet or outlet, and the pressure parameter information comprises a gas-phase side pressure parameter, a liquid-phase side pressure parameter and an outlet side pressure parameter; the equipment parameter information characterizes equipment information of the air lifter, including but not limited to pipe diameter information of the air lifter and length information of a gas phase side from an outlet side; it will be appreciated that the density and relative molecular weight of the feed on the gas and liquid phase sides will also affect the flow data, and that the feed information can be set to include the molar density and average relative component of each feed port. The preset calibration information includes, but is not limited to, a calibration pipe diameter, a calibration pressure drop, a calibration gas phase side density and a calibration gas phase side mass flow of the air lifter, and the flow coefficient can be determined according to the preset calibration information.

In the process of determining flow data corresponding to the air lifter, according to the flow characteristics of the inlet side or the outlet side of the air lifter, the inlet side or the outlet side can be regarded as a valve, the volume flow corresponding to the inlet side or the outlet side can be determined according to a valve flow calculation formula and associated parameter information of the air lifter, pressure parameter information, equipment parameter information and preset calibration information related to volume flow calculation are obtained from the associated parameter information, a flow calculation relation is constructed by utilizing the valve flow calculation formula based on the pressure parameter information, the equipment parameter information and the preset calibration information, and the obtained flow calculation relation is determined as a flow calculation submodel of the air lifter. The flow calculation sub-model is specifically used for calculating volume flow data corresponding to the air lifter.

It should be noted that, in the pipeline of the air lifter, there are flows of air and liquid at the same time, therefore, the pipe diameter of the air lifter is used to calculate air flow, the flow of the liquid is ignored, thus the calculated volume flow data is inaccurate, the section air content is introduced, the pipe diameter occupied by the actual flow of air is calculated, the flowing states of the air and the liquid may be bullet flow, mixing flow, bubble flow, annular flow and the like, and the gas expands, so that the section air content at different positions is different. To simplify the calculation, the air density is set to be constant, and the section air content is calculated.

If the current flow data is adopted to calculate the section air content, parameters corresponding to the flow data are required to be introduced into the construction of a flow meter operator model, so that the form of a flow calculation sub-model is obviously complex, and the simultaneous solution is not facilitated. The gas-phase side flow and the liquid-phase side flow at preset moments can be used as the gas-phase side flow and the liquid-phase side flow for calculating the section air content, wherein the preset moments can be moments before deltat based on the current moment, namely the gas-phase side flow and the liquid-phase side flow at the moments before deltat are used for calculating the section air content of the air lifter, deltat is the time interval calculated by two adjacent models, and the preset moments specifically refer to the moment calculated by the previous model. Because of the need to meet real-time requirements, the selected Δt is small and the flow data can be considered unchanged. And determining the ratio of the gas phase side volume flow data to the sum of the gas phase side volume flow data and the liquid phase side volume flow data at the preset moment, wherein the obtained ratio is used as the corresponding section gas content of the gas phase side. In order to enable the determined section air content of the air lifter to more conform to the actual section air content of the air lifter, the section air content of the air lifter may be calculated in real time according to the method for determining the section air content described above.

Specifically, the pipe diameter information of the air lifter is adjusted through the determined section air content to obtain the relative pipe diameter of the air lifter, wherein the calculation formula of the section air content epsilon is as follows:

Wherein, For the gas phase side volume flow data at the preset time,Is the liquid phase side volume flow data at the preset moment.

Relative pipe diameter of air lifterThe calculation formula of (2) is as follows:

Wherein, Is the actual pipe diameter of the air lifter.

Determining pressure difference data through the gas phase side pressure parameter and the outlet side pressure parameter, determining a first product term based on the pressure difference data and feeding information, wherein the feeding information comprises the molar density and the average relative molecular weight of the gas phase side, specifically, taking a ratio obtained by dividing the pressure difference data by the product of the molar density and the average relative molecular weight as the first product term, and determining the cross-sectional area corresponding to the gas phase side based on the pipe diameter information of the air lifter as a second product term; and determining a flow coefficient according to the calibrated pipe diameter, the calibrated pressure drop, the calibrated gas phase side density and the calibrated gas phase side mass flow of the air lifter, taking the flow coefficient as a third product term, and constructing a flow calculation submodel of the air lifter based on the first product term, the second product term and the third product term.

Wherein, based on the calibrated pipe diameter, calibrated pressure drop, calibrated gas phase side density and calibrated gas phase side mass flow of the air lifter, the flow coefficient is determinedThe calculation formula of (2) is as follows:

Wherein, In order to calibrate the mass flow rate on the gas phase side,In order to calibrate the pipe diameter,In order to calibrate the pressure drop,To calibrate the gas phase side density.

In the dynamic simulation process, especially during start-up and shut-down, the parameters vary greatly, and the pressure difference data between the vapor-phase side pressure parameter and the outlet-side pressure parameter may be less than 0, resulting in mathematical errors. Therefore, absolute value processing is carried out on the pressure difference data of the gas-phase side pressure parameter and the outlet side pressure parameter, and the expression for representing the first product term is as follows:

Wherein, As a gas-phase side pressure parameter,As a gas-phase side pressure parameter,Is the molar density on the gas phase side,Is the average relative molecular weight on the gas phase side.

Specifically, the volume flow calculation formula corresponding to the flow calculation sub-model is as follows:

Wherein, In order to achieve a volume flow rate,Is of a relative pipe diameter,As a flow coefficient of the water, the water is mixed with water,As a gas-phase side pressure parameter,As a gas-phase side pressure parameter,Is the molar density on the gas phase side,Is the average relative molecular weight on the gas phase side.

S140, constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information.

The compressed air injected at the bottom of the air lifter has the same energy as the energy consumed to lift the liquid from the bottom to the top of the pump, wherein the buoyancy of the air bubbles is used as the driving force of the pump. And constructing an energy conservation relation corresponding to the air lifter by reasonably selecting flow parameter information, pressure parameter information, feeding information and equipment parameter information and utilizing an energy conservation law to obtain a flow pressure balance sub-model of the air lifter. The flow parameter information characterizes mass flow information of the air lifter, including but not limited to gas phase side mass flow parameters and liquid phase side mass flow parameters; the pressure parameter information characterizes the pressure information of the air lifter, including but not limited to a vapor phase side pressure parameter, a liquid phase side pressure parameter, and an outlet side pressure parameter; the feed information characterizes the relevant characteristic parameters of each feed of the airlift including, but not limited to, the density on the liquid phase side and the density on the gas phase side, and since the density of air is very small compared to liquid, the gravitational potential energy of the corresponding air is also very small, only the density on the liquid phase side may be considered for the feed information. The device parameter information may be understood as representing the extent to which the supplied energy of the device is effectively utilized, and in this embodiment, the device parameter information may be represented by the efficiency of the air lifter, that is, the device parameter information includes the efficiency of the air lifter, and in the case of performing the energy conservation analysis, the energy loss in the air lifter is complex, including various local losses and losses generated by sliding of bubbles in the liquid, and this part of the losses may be simulated by the user given the efficiency of the air lifter, that is, the device parameter information herein may be the efficiency of the air lifter.

Specifically, flow parameter information, pressure parameter information, feeding information and equipment parameter information are selected from preset associated parameter data, the energy of compressed air injected from the gas phase side is determined based on the flow parameter information, the pressure parameter information and the equipment parameter information, the energy consumed for lifting liquid from the bottom to the top of the pump is determined based on the flow parameter information, the pressure parameter information and the feeding information, the energy of the compressed air injected from the gas phase side can be determined to be equal to the energy consumed for lifting the liquid from the bottom to the top of the pump according to an energy conservation law, and the obtained equivalent relation is determined to be a flow pressure balance sub-model of the air lifter.

It should be noted that, since the density of air is very small compared to liquid, the gravitational potential energy change of air is negligible. Additionally, given the gravitational potential energy of air, given a large lift height, it may affect the consistency and consistency of the dynamic calculations. The gas phase side and liquid phase side kinetic energy changes are negligible. On the one hand, when the kinetic energy change of the gas phase side and the liquid phase side is added, the non-uniformity of the equation is obviously increased, and an unreasonable solution is easy to occur during calculation. The lift height of the air lifter is an important parameter and if specified by the user, it is difficult to dynamically simulate the effect of the lift height variation during the process. Thus, associating the air lifter with a liquid storage device (e.g., tank) accurately calculates the lift height, which helps to improve the accuracy of the pressure data for calculating the liquid feed. The pressure of the liquid flow led out of the other tank body is calculated according to the liquid surface rather than the liquid outlet, if the liquid lifting height is calculated from the liquid feeding position of the air lifter, the pressure at the point is inconsistent with the calculated pressure, so that deviation is caused, and the liquid lifting height is calculated from the tank body liquid level, the liquid pressure is consistent with the calculated value, and the accuracy of the calculation result of the pressure data is improved. Where the bernoulli equation describes the conservation of mechanical energy of the fluid in the flow, it is known that compressed air on the gas phase side provides energy equal to the energy expended to lift the liquid from the initial position to the top of the pump.

Specifically, obtaining an initial liquid level height of liquid storage equipment corresponding to the air lifter, summing the length from the gas phase side inlet to the outlet and the ground height of the gas phase side inlet, subtracting the initial liquid level height from the sum, and obtaining a difference value, namely the liquid lifting height; the calculation formula of the lifting height is as follows:

Wherein H is the liquid lifting height, l is the length from the gas phase side inlet to the outlet, Is the ground height of the gas phase side inlet,Is the initial liquid level height.

Specifically, the flow pressure balance on the liquid phase side is calculated according to the bernoulli equation, and the compressed air injected at the bottom of the air lifter has an energy equivalent to the energy expended to lift the liquid from the bottom to the top of the pump, where the buoyancy of the air bubbles acts as the driving force of the pump. And acquiring a gas-phase side pressure parameter and an outlet side pressure parameter in the pressure parameter information, determining a first pressure difference according to the gas-phase side pressure parameter and the outlet side pressure parameter, calculating the product of the first pressure difference and the gas-phase side mass flow parameter, and multiplying the obtained product value by the efficiency of the air lifter to obtain a first energy term, namely the energy of the compressed air injected from the gas-phase side. And acquiring a liquid phase side pressure parameter in the pressure parameter information, determining a second pressure difference according to the pressure of the liquid phase side and the outlet side pressure parameter, and calculating the sum of the second pressure difference and the buoyancy of the liquid phase side, wherein the product of the obtained sum and the liquid phase side mass flow parameter is equal to the energy consumed for lifting the liquid from the bottom to the top of the pump. Therefore, the flow pressure balance sub-model corresponds to the formula:

Wherein, Is the mass flow parameter on the gas phase side,Is the mass flow parameter of the liquid phase side,Is a gas-phase side pressure parameter,Is a liquid-phase side pressure parameter,Is the outlet side pressure parameter and,Is the density of the liquid phase side,Is the efficiency of the air lifter, H is the liquid lifting height, g is the gravitational acceleration. It should be noted that there is a certain linear relationship between the mass flow rate and the molar flow rate, and a certain linear relationship also exists between the volume flow rate and the molar flow rate, and each linear relationship is as follows:

Wherein, Is the average molecular weight of the gas-phase side mixture,The average molecular weight of the gas phase side mixture obtained by the previous calculation is very small, and the corresponding parameter value change is very small due to the extremely small time difference corresponding to the calculation of the adjacent two rounds, which can be ignored, and the molar flow is calculatedThe average molecular weight of the gas-phase side mixture calculated in the previous round can be used for calculation, and correspondingly,Is the molar density of the gas-phase side mixture,The molar density of the gas-phase side mixture calculated in the previous round is calculated in calculating the volume flow rateThe molar density of the gas-side mixture calculated in the previous round can be used. The molecular weight and molar density of the present run can be calculated according to the flash algorithm. Similarly, the relative linear relationship between the liquid phase side and the outlet side is identical to the linear relationship between the gas phase side, and will not be described again here.

S150, forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model.

The simulation model of the air lifter can be understood in particular as simulating the flow process of the two phases of air and liquid in the air lifter. The time-dependent change result of the parameter variable corresponding to the air lifter is calculated through the simulation model, so that the time-dependent change process of the parameter variable corresponding to the air lifter is dynamically simulated, and the simulation model is used for analyzing the dynamic characteristics of the process, planning a control scheme, optimizing a start-stop scheme, developing training software of operators and the like.

Specifically, the constructed flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model are combined to obtain a simulation model of the air lifter, which is used for calculating a time-dependent change result of a parameter variable corresponding to the air lifter, and the parameter variable corresponding to the air lifter is preset to be pressure data and flow data, and under the condition of known pressure data, the corresponding flow data can be calculated according to the simulation model of the air lifter.

S160, carrying out simulation processing on configuration information of the air lifter to be processed based on a simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed.

The air lifter to be processed can be specifically understood as an air lifter needing simulation, and the configuration information specifically refers to parameter information required by the simulation of the air lifter to be processed, wherein the configuration information comprises but is not limited to flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter to be processed.

Specifically, configuration information of the air lifter to be processed is obtained, the configuration information of the air lifter to be processed is input into a simulation model of the air lifter to be simulated, a simulation result of parameter variables of the air lifter to be processed is obtained, the simulation result comprises pressure data and/or flow data of the air lifter to be processed, the parameter variables of the air lifter comprise gas phase side pressure parameters and gas phase side flow parameters, liquid phase side pressure parameters and liquid phase side flow parameters, outlet side pressure parameters and outlet side flow parameters, corresponding pressure data can be calculated according to the simulation model under the condition of known flow parameters, corresponding flow data can be calculated according to the simulation model under the condition of known pressure parameters, three parameters can be optionally selected from the parameter variables, corresponding values are set for the selected parameters, and unselected parameters in the parameter variables are calculated through the simulation model. Preferably, each pressure data in the parameter variables is set as a known data, and the corresponding flow data is determined by a simulation model of the air lifter.

In the embodiment, the simulation of equipment such as the air lifter is realized by constructing the simulation model of the air lifter, the simulation operation is simplified, the simulation of the air lifter can be performed only by configuring corresponding associated parameter information, a corresponding simulation result is obtained, the accuracy of the simulation model is improved by reasonably setting the associated parameter information, and the calculation accuracy and the calculation speed of the simulation result are further improved.

According to the technical scheme, through obtaining preset associated parameter information of the air lifter, the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter; constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information; constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information; constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information; forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model; the simulation model based on the air lifter carries out simulation processing on configuration information of the air lifter to be processed to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed, corresponding associated parameter data are reasonably set according to characteristics of a chemical process of the air lifter, and a flow conservation sub-model, a flow calculation sub-model and a flow pressure balance sub-model are respectively built based on one or more items of the associated parameter data, so that a simulation model corresponding to the air lifter is obtained, the obtained simulation model is more in accordance with an actual flowing process of materials in the air lifter, the problems of poor simulation effect and poor calculation precision of the simulation model of the existing air lifter are solved, the simulation effect of the simulation model of the air lifter is improved, dynamic simulation operation of the air lifter is simplified, and the calculation precision and the calculation speed of the simulation model of the air lifter are also remarkably improved.

Example two

FIG. 2 is a flow chart of a simulation model construction method of an air lifter according to a second embodiment of the present invention, wherein the method of the above embodiment is further optimized in this embodiment, and optionally, a component balance relation corresponding to the air lifter is constructed, and the obtained component balance relation is used as a component balance sub-model; determining enthalpy information of the air lifter; one or more of an output temperature of the air lifter, a gas component on an outlet side, and a liquid component on an outlet side are determined based on the pressure data, the enthalpy information, and the component balance sub-model. As shown in fig. 2, the method includes:

S210, acquiring preset associated parameter information of the air lifter, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter.

S220, constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information.

S230, constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information.

S240, constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information.

S250, forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model.

S260, carrying out simulation processing on configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed.

S270, constructing a component balance relation corresponding to the air lifter, and taking the obtained component balance relation as a component balance sub-model.

The associated parameter information also comprises component parameters, wherein the component parameters comprise a gas phase side component parameter, a liquid phase side component parameter and an outlet side component parameter; the component balance sub-model is that the sum of the products of the gas phase side flow rate parameter and the mole fraction of the corresponding component and the liquid phase side flow rate parameter is equal to the product of the mole fraction of the corresponding component and the outlet side flow rate parameter.

Wherein the components are understood in particular to be the individual components of the mixture. The component parameters represent parameter information corresponding to each component, wherein the parameter information can be mole fraction corresponding to each component, and the mole fraction refers to the mole ratio of a certain component in all components. Component parameters include, but are not limited to, gas phase side component parameters, liquid phase side component parameters, and outlet side component parameters. The air lifter is free of reaction, the total component amount of the inlet of the air lifter is equal to the component amount of the outlet, the total component amount of the inlet end and the component amount of the outlet end of the air lifter are determined based on the flow parameter information and the component parameters, the total component amount of the inlet end of the air lifter is determined based on the sum of the products of the molar fractions of the gas phase side flow parameter and the liquid phase side flow parameter and the corresponding components, respectively, and the component amount of the outlet end is determined based on the product of the molar fractions of the outlet side flow parameter and the corresponding components. From the equation that the total component amount at the inlet of the air lifter is equal to the component amount at the outlet, the component balance sub-model can be determined as:

wherein i takes the values of 0,1,2, … …, n and n as the component number, Is the molar fraction of the gas-phase side component i,Is the molar fraction of the liquid-phase side component i,Is the molar fraction of the outlet component i.Is the molar flow rate of the gas phase side,Is the molar flow rate of the liquid phase side,Is the molar flow rate at the outlet side.

S280, determining enthalpy information of the air lifter.

The air lifter is a complex unit operation of coupling mass transfer and heat transfer, so the heat transfer process is simplified in the process of constructing a simulation model, and the heat transfer in the air lifter is approximately considered to be in an equilibrium state. Specifically, regardless of the heat exchange of the device with the environment, the total enthalpy of the air lifter inlet air and liquid is equal to the enthalpy of the outlet, the equivalent relationship of the enthalpy being as follows:

Wherein, Is the enthalpy value of the air,Is the enthalpy value of the liquid,Is the outlet enthalpy.

Specifically, PT flash evaporation calculation is carried out on each component in the air lifter through a thermodynamic model to determine the enthalpy value corresponding to each component in the air lifter, and enthalpy value information of the air lifter is obtained.

S290 determining one or more of an output temperature of the air lifter, a gas component on an outlet side, and a liquid component on an outlet side based on the pressure data, the enthalpy information, and the component balance sub-model.

The gas phase side component information specifically characterizes the mole fraction of each component on the gas phase side; the liquid phase side component information is specifically characterized by the mole fraction of each component on the liquid phase side, and can be obtained by calling PH flash evaporation emission calculation. Invoking a PH flashing algorithm, the output temperature of the air lifter may be determined by the PH flashing algorithm. The PH flash evaporation is also called pressure enthalpy flash evaporation, the PH flash evaporation algorithm is essentially an iterative process of temperature, and the iteration of the temperature value is repeated to converge to a certain temperature, so that the error between the calculated enthalpy value and the given enthalpy value is smaller than the allowable error.

Specifically, the components corresponding to the air lifter are determined according to the component balance sub-model, the pressure data is determined according to the pre-built air lifter model or the corresponding pressure data is preset according to actual requirements, and under the condition that the pressure data, the enthalpy information and the components are determined, a PH flash evaporation algorithm is called to calculate one or more of the outlet temperature of the air lifter, the gas component at the outlet side and the liquid component at the outlet side, wherein for determining one or more of the output temperature of the air lifter, the gas phase side component information and the liquid phase side component information, the setting is performed according to the actual requirements, if only the output temperature needs to be concerned, only the temperature data can be output, and correspondingly, all the outputs, namely the output temperature of the air lifter, the gas phase side component information and the liquid phase side component information, can be set.

According to the technical scheme, through obtaining preset associated parameter information of the air lifter, the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter; constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information; constructing a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information; constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information; forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model; performing simulation processing on configuration information of the air lifter to be processed based on a simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed; constructing a component balance relation corresponding to the air lifter, and taking the obtained component balance relation as a component balance sub-model; the associated parameter information also comprises component parameters, wherein the component parameters comprise a gas phase side component parameter, a liquid phase side component parameter and an outlet side component parameter; the component balance sub-model is that the sum of the products of the gas phase side flow rate parameter and the liquid phase side flow rate parameter and the corresponding component mole fraction is equal to the product of the outlet side flow rate parameter and the corresponding component mole fraction; determining enthalpy information of the air lifter; one or more of an output temperature of the air lifter, a gas component on an outlet side, and a liquid component on an outlet side are determined based on the pressure data, the enthalpy information, and the component balance sub-model. The method has the advantages that corresponding associated parameter data are reasonably set according to the characteristics of the chemical process of the air lifter, and a flow conservation sub-model, a flow calculation sub-model and a flow pressure balance sub-model are respectively constructed based on one or more items of the associated parameter data, so that a simulation model corresponding to the air lifter is obtained, the obtained simulation model is more in line with the actual flowing process of materials in the air lifter, the problems of poor simulation effect and poor calculation precision of the simulation model of the existing air lifter are solved, the simulation effect of the simulation model of the air lifter is improved, the dynamic simulation operation of the air lifter is simplified, and the calculation precision and calculation speed of the simulation model of the air lifter are also remarkably improved; and one or more of the output temperature of the air lifter, the gas component at the outlet side and the liquid component at the outlet side are determined by constructing a corresponding component balance relation of the air lifter, so that a simulation model of the air lifter can be more comprehensively constructed, the simulation effect of the air lifter is further improved, and the obtained simulation result can provide reference value for the application and equipment parameter setting of the air lifter.

Example III

Fig. 3 is a schematic structural diagram of a simulation model construction apparatus of an air lifter according to a third embodiment of the present invention. As shown in fig. 3, the apparatus includes:

a parameter information obtaining module 310, configured to obtain preset associated parameter information of the air lifter, where the associated parameter information includes one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information, and preset calibration information of the air lifter;

The flow conservation sub-model construction module 320 is configured to construct a flow conservation sub-model corresponding to the air lifter based on the flow parameter information;

The flow meter operator model construction module 330 is configured to construct a flow calculation sub-model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information;

A flow pressure balance sub-model construction module 340 for constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feed information, and the equipment parameter information;

a simulation model determination module 350 for forming a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model, and the flow pressure balance sub-model;

the simulation result determining module 360 is configured to perform simulation processing on the configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, where the simulation result includes pressure data and/or flow data of the air lifter to be processed.

According to the technical scheme, the parameter information acquisition module is used for acquiring preset associated parameter information of the air lifter, wherein the associated parameter information comprises one or more of flow parameter information, pressure parameter information, feeding information, equipment parameter information and preset calibration information of the air lifter; the flow conservation sub-model construction module constructs a flow conservation sub-model corresponding to the air lifter based on the flow parameter information; the flow calculation sub-model construction model constructs a flow calculation sub-model of the air lifter based on pressure parameter information, equipment parameter information, feeding information and preset calibration information; the flow pressure balance sub-model construction module constructs a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feeding information and the equipment parameter information; the simulation model determining module forms a simulation model of the air lifter based on the flow conservation sub-model, the flow calculation sub-model and the flow pressure balance sub-model; the simulation result determining module carries out simulation processing on configuration information of the air lifter to be processed based on a simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed. The method and the device realize that corresponding associated parameter data are reasonably set according to the characteristics of the chemical process of the air lifter, and based on one or more of the associated parameter data, a flow conservation sub-model, a flow calculation sub-model and a flow pressure balance sub-model are respectively constructed, so that a simulation model corresponding to the air lifter is obtained, the obtained simulation model is more in line with the actual flowing process of materials in the air lifter, the problems of poor simulation effect and poor calculation precision of the simulation model of the existing air lifter are solved, the simulation effect of the simulation model of the air lifter is improved, the dynamic simulation operation of the air lifter is simplified, and the calculation precision and calculation speed of the simulation model of the air lifter are also remarkably improved.

On the basis of the above embodiment, optionally, the flow parameter information includes a gas phase side flow parameter, a liquid phase side flow parameter, and an outlet side flow parameter of the air lifter; the flow conservation sub-model construction module 320 is specifically configured to determine an equivalent relationship between flow parameter information based on a principle of conservation of material, and determine a flow conservation sub-model based on the equivalent relationship, where the equivalent relationship is an equivalent relationship between a sum of a gas phase side flow parameter and a liquid phase side flow parameter and an outlet side flow parameter.

Optionally, the pressure parameter information comprises a gas-phase side pressure parameter and an outlet side pressure parameter, the equipment parameter information comprises pipe diameter information of the air lifter, the feeding information comprises the molar density and the average relative molecular weight of the gas-phase side, and the preset calibration information comprises the calibration pipe diameter, the calibration pressure drop, the calibration gas-phase side density and the calibration gas-phase side mass flow of the air lifter; the flow calculation submodel construction module 330 is specifically configured to determine a flow coefficient based on a calibrated pipe diameter, a calibrated pressure drop, a calibrated gas phase side density, and a calibrated gas phase side mass flow of the air lifter; determining the section air content of the air lifter, and determining the relative pipe diameter of the air lifter based on the section air content and the pipe diameter of the air lifter; and constructing a flow calculation sub-model of the air lifter based on the flow coefficient, the gas-phase side pressure parameter, the outlet side pressure parameter, the relative pipe diameter and the feeding information.

The flow calculation sub-model construction module 330 is further specifically configured to obtain gas phase side volume flow data and liquid phase side volume flow data of the air lifter at a preset time; and determining the corresponding section gas content of the gas phase side based on the gas phase side volume flow data and the liquid phase side volume flow data at preset time.

Optionally, the flow parameter information includes a gas phase side mass flow parameter and a liquid phase side mass flow parameter, the equipment parameter information includes a length from a gas phase side inlet to a gas phase side outlet, a ground clearance height of the gas phase side inlet and efficiency of the air lifter, the feeding information includes a liquid phase side density, the pressure parameter information includes a gas phase side pressure parameter, a liquid phase side pressure parameter and an outlet side pressure parameter, and the flow pressure balance sub-model construction module 340 is specifically configured to obtain an initial liquid level height of a liquid storage device corresponding to the air lifter, and determine a lifting liquid height based on the length from the gas phase side inlet to the gas phase side outlet, the ground clearance height of the gas phase side inlet and the initial liquid level height; and constructing a flow pressure balance sub-model according to Bernoulli's law based on the gas phase side mass flow parameter, the liquid phase side mass flow parameter, the pressure parameter information, the feeding information and the liquid lifting height.

Optionally, the associated parameter information further includes a component parameter, where the component parameter includes a gas phase side component parameter, a liquid phase side component parameter, and an outlet side component parameter, and the device is further configured to construct a component balance relation corresponding to the air lifter, and take the obtained component balance relation as a component balance sub-model, where the component balance sub-model is a sum of products of molar fractions of the gas phase side flow parameter and the liquid phase side flow parameter, and the corresponding component, and is equal to a product of the outlet side flow parameter and the corresponding component.

Optionally, the device is specifically configured to determine enthalpy information of the air lifter; one or more of an output temperature of the air lifter, a gas component on an outlet side, and a liquid component on an outlet side are determined based on the pressure data, the enthalpy information, and the component balance sub-model.

The simulation model construction device of the air lifter provided by the embodiment of the invention can execute the simulation model construction method of the air lifter provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

Example IV

Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 4, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the simulation model building method of the air lifter.

In some embodiments, the simulation model construction method of the air lifter may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the simulation model construction method of an air lifter described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the simulation model building method of the air lifter in any other suitable manner (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

The computer program for implementing the simulation model construction method of the air lifter of the present invention can be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

Example five

The fifth embodiment of the present invention also provides a computer readable storage medium storing computer instructions for causing a processor to execute a simulation model construction method of an air lifter, the method comprising:

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A simulation model construction method of an air lifter, comprising:

constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feed information, and the equipment parameter information;

Forming a simulation model of the air lifter based on the flow conservation sub-model, the flow meter sub-model, and the flow pressure balance sub-model;

Performing simulation processing on configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed;

The pressure parameter information comprises a gas phase side pressure parameter and an outlet side pressure parameter, the equipment parameter information comprises pipe diameter information of the air lifter, the feeding information comprises the molar density and the average relative molecular weight of the gas phase side, and the preset calibration information comprises the calibrated pipe diameter, the calibrated pressure drop, the calibrated gas phase side density and the calibrated gas phase side mass flow of the air lifter; the constructing a flow meter operator model of the air lifter based on the pressure parameter information, the equipment parameter information, the feeding information and the preset calibration information comprises the following steps:

determining a flow coefficient based on a calibrated pipe diameter, a calibrated pressure drop, a calibrated gas phase side density and a calibrated gas phase side mass flow of the air lifter;

Determining a cross-sectional air content of the air lifter, determining a relative pipe diameter of the air lifter based on the cross-sectional air content and a pipe diameter of the air lifter;

Constructing a flow calculation sub-model of the air lifter based on the flow coefficient, the vapor-phase side pressure parameter, the outlet side pressure parameter, the relative pipe diameter and the feed information;

The flow parameter information comprises a gas phase side mass flow parameter and a liquid phase side mass flow parameter, the equipment parameter information comprises a length from a gas phase side inlet to a gas phase side outlet, a ground clearance of the gas phase side inlet and efficiency of the air lifter, the feeding information comprises a liquid phase side density, and the pressure parameter information comprises a gas phase side pressure parameter, a liquid phase side pressure parameter and an outlet side pressure parameter; the constructing a flow pressure balance sub-model of the air lifter based on the flow parameter information, the pressure parameter information, the feed information, and the equipment parameter information, comprises:

Acquiring an initial liquid level height of liquid storage equipment corresponding to the air lifter, and determining a lifting liquid height based on the length from the gas phase side inlet to the outlet, the ground clearance height of the gas phase side inlet and the initial liquid level height;

And constructing the flow pressure balance sub-model according to Bernoulli's law based on the gas phase side mass flow parameter, the liquid phase side mass flow parameter, the pressure parameter information, the feeding information and the liquid lifting height.

2. The method of claim 1, wherein the flow parameter information comprises a vapor phase side flow parameter, a liquid phase side flow parameter, and an outlet side flow parameter of the air lifter;

the constructing a flow conservation sub-model corresponding to the air lifter based on the flow parameter information comprises the following steps:

And determining an equivalent relation between the flow parameter information based on a material conservation principle, and determining the flow conservation sub-model based on the equivalent relation, wherein the equivalent relation is between the sum of the gas phase side flow parameter and the liquid phase side flow parameter and the outlet side flow parameter.

3. The method of claim 1, wherein determining a cross-sectional air content of the air lifter comprises:

acquiring gas phase side volume flow data and liquid phase side volume flow data of the air lifter at preset time;

and determining the corresponding section gas content of the gas phase side based on the gas phase side volume flow data and the liquid phase side volume flow data at the preset moment.

4. The method of claim 1, wherein the associated parameter information further comprises component parameters including a gas-phase side component parameter, a liquid-phase side component parameter, and an outlet-side component parameter; the method further comprises the steps of:

And constructing a component balance relation corresponding to the air lifter, and taking the obtained component balance relation as a component balance sub-model, wherein the component balance sub-model is a product of a gas phase side flow parameter, a liquid phase side flow parameter and a corresponding component molar fraction respectively, and the sum of the products of the gas phase side flow parameter and the liquid phase side flow parameter and the corresponding component molar fraction is equal to the product of an outlet side flow parameter and the corresponding component molar fraction.

5. The method according to claim 4, wherein the method further comprises:

Determining enthalpy information of the air lifter;

one or more of an output temperature of the air lifter, a gas component on an outlet side, and a liquid component on an outlet side are determined based on the pressure data, the enthalpy information, and the component balance sub-model.

6. A simulation model construction apparatus of an air lifter, comprising:

A simulation model determination module for forming a simulation model of the air lifter based on the flow conservation sub-model, the flow meter sub-model, and the flow pressure balance sub-model;

the simulation result determining module is used for carrying out simulation processing on the configuration information of the air lifter to be processed based on the simulation model of the air lifter to obtain a simulation result of the air lifter to be processed, wherein the simulation result comprises pressure data and/or flow data of the air lifter to be processed;

The pressure parameter information comprises a gas phase side pressure parameter and an outlet side pressure parameter, the equipment parameter information comprises pipe diameter information of the air lifter, the feeding information comprises the molar density and the average relative molecular weight of the gas phase side, and the preset calibration information comprises the calibrated pipe diameter, the calibrated pressure drop, the calibrated gas phase side density and the calibrated gas phase side mass flow of the air lifter; the flow meter operator model construction module is specifically used for determining a flow coefficient based on a calibration pipe diameter, a calibration pressure drop, a calibration gas phase side density and a calibration gas phase side mass flow of the air lifter; determining a cross-sectional air content of the air lifter, determining a relative pipe diameter of the air lifter based on the cross-sectional air content and a pipe diameter of the air lifter; constructing a flow calculation sub-model of the air lifter based on the flow coefficient, the vapor-phase side pressure parameter, the outlet side pressure parameter, the relative pipe diameter and the feed information;

The flow parameter information comprises a gas phase side mass flow parameter and a liquid phase side mass flow parameter, the equipment parameter information comprises a length from a gas phase side inlet to a gas phase side outlet, a ground clearance of the gas phase side inlet and efficiency of the air lifter, the feeding information comprises a liquid phase side density, and the pressure parameter information comprises a gas phase side pressure parameter, a liquid phase side pressure parameter and an outlet side pressure parameter; the flow pressure balance sub-model construction module is specifically configured to obtain an initial liquid level height of a liquid storage device corresponding to the air lifter, and determine a lifting height based on a length from the gas phase side inlet to the outlet, a ground clearance height of the gas phase side inlet, and the initial liquid level height; and constructing the flow pressure balance sub-model according to Bernoulli's law based on the gas phase side mass flow parameter, the liquid phase side mass flow parameter, the pressure parameter information, the feeding information and the liquid lifting height.

7. An electronic device, the electronic device comprising:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the simulation model construction method of an air lifter according to any of claims 1-5.

8. A computer readable storage medium storing computer instructions for causing a processor to implement the simulation model construction method of an air lifter according to any of claims 1-5 when executed.