A kind of ethyl orthosilicate automatic packaging system and method

Abstract

The invention discloses an automatic packaging system and method for ethyl orthosilicate, and relates to the technical field of automatic packaging. The system comprises a deviation correction module, a data acquisition module, a control decision module, an execution module and a safety monitoring module. The system can adjust the flow deviation of each packaging pipeline in real time through the deviation correction module and the flow control algorithm, ensure the flow stability of ethyl orthosilicate during the packaging process, and avoid excessive errors, thereby realizing accurate packaging control. The system monitors the liquid level of each packaging tank in real time, distributes labels according to the liquid level state, adjusts the packaging strategy, optimizes the packaging process, and avoids excessive packaging or premature stopping. The system analyzes the temperature and pressure fluctuations of each packaging pipeline in real time through the safety monitoring module, timely discovers and handles abnormal situations, prevents equipment damage caused by abnormal temperature or pressure, and ensures safe operation of the system.

Description

Technical Field

[0001] The invention relates to the technical field of automatic packaging, and in particular to an automatic packaging system and method for ethyl orthosilicate. Background Art

[0002] Automated filling technology is an important part of modern production and industrial automation, and is widely used in chemical, pharmaceutical, food, beverage and other industries. With the continuous development of automation technology, liquid filling systems have gradually shifted from traditional manual operations to automated control, greatly improving production efficiency, filling accuracy and safety of the production process.

[0003] Traditional liquid packaging systems mostly rely on manual operation or basic mechanical equipment to complete liquid packaging. These systems usually have problems such as insufficient packaging accuracy, complex operation, strong dependence on personnel, and low production efficiency. In addition, although some existing automated packaging technologies have made certain progress in improving packaging efficiency and accuracy, there are still the following problems:

[0004] First of all, traditional filling systems mostly rely on mechanical flow meters or simple liquid level sensors, which cannot provide sufficiently accurate data feedback during the high-precision liquid filling process, resulting in certain deviations in the filling process, affecting product quality and production efficiency.

[0005] Secondly, most of the existing packaging systems are controlled by fixed programs or preset parameters, which lack flexibility and intelligent adjustment capabilities. For different liquid materials, the packaging system cannot dynamically adjust the packaging process according to real-time data, resulting in the inability to achieve the optimal packaging effect under different working conditions.

[0006] In view of the above problems, it is necessary to propose an automatic packaging system and method for ethyl orthosilicate. Summary of the invention

[0007] The purpose of the present invention is to solve the problems existing in the background technology and to provide an automatic packaging system and method for ethyl orthosilicate.

[0008] The purpose of the present invention can be achieved through the following technical scheme: an automatic packaging system and method for ethyl orthosilicate.

[0009] In a first aspect, the present invention provides an automatic packaging system for ethyl orthosilicate, comprising a deviation correction module, a data acquisition module, a control decision module, an execution module and a safety monitoring module.

[0010] The deviation correction module controls the pumps and valves of each filling pipeline to transfer ethyl orthosilicate from the raw material tank to the filling device. The real-time flow of each filling pipeline during the filling process is obtained, and the flow deviation of each filling pipeline is adjusted through the flow control algorithm to ensure that there is no excessive error between the planned flow and the actual flow in the local range of each filling pipeline.

[0011] The inner diameter of each filling pipeline and the real-time flow rate of ethyl orthosilicate therein are obtained, and the real-time flow rate in each filling pipeline is calculated.

[0012] As a preferred embodiment of the present invention, the flow rate of each packaging pipeline is fine-tuned to ensure that it fluctuates within a small range around a preset standard flow rate. The specific process is as follows:

[0013] Obtain the standard flow of each filling pipeline, and obtain the real-time flow error of each filling pipeline by calculating the standard flow and the real-time flow. Calculate the flow control reference value by implementing the flow error;

[0014] The standard flow rate of each filling pipeline is subject to feedback control by the execution module, and its specific value is output by the execution module.

[0015] The control reference values ​​are sent to the control drives that control the pumps and valves of the various dispensing pipelines.

[0016] Input the specific numerical value of the flow control reference value into the pump speed control formula, calculate the pump speed response value of each filling pipeline, and adjust the specific numerical value of the pump speed of the corresponding filling pipeline to the specific numerical value of the pump speed response value;

[0017] The valve opening is adjusted according to the specific numerical value of the flow control reference value, the specific numerical value of the flow control reference value is input into the valve opening control formula, the valve opening response value of each filling pipeline is calculated, and the specific numerical value of the valve opening of the corresponding filling pipeline is adjusted to the specific numerical value of the valve opening response value;

[0018] The data acquisition module collects key data including temperature, pressure and packaging volume during the packaging process, providing raw data for subsequent analysis and execution decisions.

[0019] Access the temperature sensor of each filling pipeline, and obtain the real-time temperature of each filling pipeline i at a preset time interval;

[0020] Access the pressure sensor of each filling pipeline, and obtain the real-time pressure of each filling pipeline i at a preset time interval;

[0021] The liquid level sensor of each filling tank is accessed, and the real-time liquid level height of each filling tank is obtained at a preset time interval.

[0022] Send the real-time temperature and pressure of each filling pipeline to the safety monitoring module;

[0023] The real-time liquid level height of each filling tank is sent to the decision control module.

[0024] The control decision module conducts a comprehensive analysis on the real-time flow of each filling pipeline and the real-time liquid level of each filling tank, determines the filling status, determines the filling status, and generates a filling status label to adjust the filling strategy.

[0025] The filling status is classified according to the real-time liquid level of each filling tank, and a filling status label is assigned to each filling tank. The specific rules are as follows:

[0026] For the sub-packaging tank whose real-time liquid level is equal to the upper limit of the liquid level, it is determined that the sub-packaging tank has completed all the sub-packaging tasks, and it is no longer necessary to inject ethyl orthosilicate into the sub-packaging tank. The sub-packaging tank is given a completed status label.

[0027] For a filling tank whose real-time liquid level is less than the upper limit and greater than 80% of the upper limit, it is determined that the filling tank is about to be filled and the liquid level in the filling tank is close to the target level, but has not yet been completed. The flow rate needs to be precisely controlled for final fine-tuning to ensure that the liquid level reaches the target height accurately and prevent excessive ethyl orthosilicate from flowing into the filling tank. The filling tank is given a status label of "about to be completed";

[0028] For a filling tank whose real-time liquid level is less than or equal to 80% of the upper limit of the liquid level and greater than or equal to 20% of the upper limit of the liquid level, the filling tank is judged to be in the filling process, and it is ensured to smoothly enter the state of being about to be completed. Prevent the filling tank from having an excessively large liquid level growth rate when entering the state of being about to be completed, and the accuracy of the final fine-tuning cannot be guaranteed. Give the filling tank an in-progress status label.

[0029] For a filling tank whose real-time liquid level is less than 20% of the upper limit of the liquid level, it is determined that the liquid in the filling tank is about to run out and the flow rate needs to be increased to ensure the continuity of the filling process. A low liquid level status label is assigned to the filling tank.

[0030] The execution module adjusts the working state of the automatic filling device according to the filling state label provided by the control decision module, controls the overall working state of all filling pipelines and filling tanks, ensures the overall flow balance of all filling pipelines, and realizes the precise filling of ethyl orthosilicate.

[0031] For the filling tank with the completed status label, the filling pipeline is controlled to stop conveying ethyl orthosilicate to the filling tank, that is, the standard flow of the filling pipeline leading to the filling tank is adjusted to 0;

[0032] For the filling tank with a "to be completed" status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted by a preset liquid level fine-tuning curve to accurately control the liquid level of the filling tank.

[0033] The function of the liquid level fine-tuning curve is:

[0034] ;in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of standard flow rate; is the real-time liquid level height of filling tank j; To adjust the reference liquid level, it represents the final liquid level target value for liquid level fine-tuning; is the upper limit of the liquid level in the filling tank; It is an adjustable parameter that controls the sensitivity of the fine-tuning process; is an adjustable index that controls the speed of the fine-tuning process. Where i is the number of the filling pipeline and t is the time of data collection.

[0035] For a filling tank with an in-progress status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted by a preset liquid level growth rate convergence curve to ensure that the filling tank has a fixed liquid level growth rate when entering the nearly completed state.

[0036] The function of the liquid level growth rate convergence curve is:

[0037] ,in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of the standard flow rate; is the preset convergence flow rate; δ is the preset logarithmic convergence coefficient, which controls the convergence rate. i is the number of the filling pipeline, and t is the data collection time.

[0038] For a filling tank with a low liquid level status label, the filling pipeline is controlled to transport ethyl orthosilicate to the filling tank at a maximum standard flow rate, that is, the standard flow rate of the filling pipeline i leading to the filling tank is adjusted to a preset maximum value.

[0039] The calculated adjustment value of the standard flow rate of the filling pipeline leading to each filling tank is fed back to the deviation correction module.

[0040] The safety monitoring module monitors the flow changes of each filling pipeline in real time, detects abnormal situations, and automatically takes measures to protect the safety of the filling equipment.

[0041] The real-time temperature and real-time pressure of each filling pipeline are sent to the safety monitoring module for real-time analysis.

[0042] The temperature safety factor is obtained by calculating the real-time temperature; the pressure safety factor is obtained by calculating the real-time pressure;

[0043] If it is identified that the temperature safety factor of a certain filling pipeline is less than a preset threshold, a temperature alarm signal for the filling pipeline is triggered, the valve of the filling pipeline is closed and the pipeline cooling system is started;

[0044] If it is identified that the pressure safety factor of a certain filling pipeline is less than the preset threshold, a pressure alarm signal for the filling pipeline is triggered, the valve of the filling pipeline is closed and the leakage detection system is started, prompting production personnel to pay attention to the leakage of the filling pipeline and check whether the filling tank connected to the filling pipeline is full.

[0045] In a second aspect, the present invention provides a method for automatically dispensing ethyl orthosilicate, comprising the following steps:

[0046] Step 1: Data collection and real-time monitoring;

[0047] Collect key data including temperature, pressure and packaging volume during the packaging process to provide raw data for subsequent analysis and execution decisions.

[0048] Step 2: Deviation correction and flow rate fine-tuning;

[0049] The real-time flow of each packaging pipeline during the packaging process is obtained, and the flow deviation of each packaging pipeline is adjusted through the flow control algorithm to ensure that there is no excessive error between the planned flow and the actual flow of each packaging pipeline in the local range.

[0050] The real-time flow rate of each filling pipeline is obtained by calculating the inner diameter and real-time flow rate of each filling pipeline.

[0051] As a preferred embodiment of the present invention, the flow rate of each packaging pipeline is fine-tuned to ensure that it fluctuates within a small range around a preset standard flow rate. The specific process is as follows:

[0052] Obtain the standard flow of each filling pipeline, and obtain the real-time flow error of each filling pipeline by calculating the standard flow and the real-time flow. Calculate the flow control reference value by implementing the flow error;

[0053] The standard flow rate of each filling pipeline is subject to feedback control by the execution module, and its specific value is output by the execution module.

[0054] The control reference values ​​are sent to the control drives that control the pumps and valves of the various dispensing pipelines.

[0055] Input the specific numerical value of the flow control reference value into the pump speed control formula, calculate the pump speed response value of each filling pipeline, and adjust the specific numerical value of the pump speed of the corresponding filling pipeline to the specific numerical value of the pump speed response value;

[0056] The valve opening is adjusted according to the specific numerical value of the flow control reference value, the specific numerical value of the flow control reference value is input into the valve opening control formula, the valve opening response value of each filling pipeline is calculated, and the specific numerical value of the valve opening of the corresponding filling pipeline is adjusted to the specific numerical value of the valve opening response value;

[0057] Step 3: Packaging status judgment and decision-making;

[0058] A comprehensive analysis is performed on the collected real-time flow of each filling pipeline and the real-time liquid level of each filling tank j to determine its filling status, determine its filling status, and generate a control signal to adjust the filling strategy.

[0059] The filling status is classified according to the real-time liquid level height of each filling tank j, and a filling status label is assigned to each filling tank j, including a completed status label, a nearly completed status label, an ongoing status label and a low liquid level status label.

[0060] Step 4: Flow adjustment and precise control;

[0061] The working state of the automatic filling device is adjusted according to the filling state label of each filling tank, the overall working state of all filling pipelines and filling tanks is controlled, the overall flow balance of all filling pipelines is ensured, and the precise filling of ethyl orthosilicate is achieved.

[0062] Step 5: Security monitoring and alarm response;

[0063] Monitor the flow changes of each filling pipeline in real time, detect abnormal situations, and automatically take measures to protect the safety of filling equipment.

[0064] The real-time temperature and real-time pressure of each filling pipeline are sent to the safety monitoring module for real-time analysis.

[0065] The temperature safety factor is obtained by calculating the real-time temperature; the pressure safety factor is obtained by calculating the real-time pressure;

[0066] If it is identified that the temperature safety factor of a certain filling pipeline is less than a preset threshold, a temperature alarm signal for the filling pipeline is triggered, the valve of the filling pipeline is closed and the pipeline cooling system is started;

[0067] If it is identified that the pressure safety factor of a certain filling pipeline is less than the preset threshold, a pressure alarm signal for the filling pipeline is triggered, the valve of the filling pipeline is closed and the leakage detection system is started, prompting production personnel to pay attention to the leakage of the filling pipeline and check whether the filling tank connected to the filling pipeline is full.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] 1. The present invention can adjust the flow deviation of each filling pipeline in real time through the deviation correction module and the flow control algorithm, ensure the stability of the flow of ethyl orthosilicate during the filling process, and avoid excessive errors, thereby realizing accurate filling control;

[0070] 2. The present invention monitors the liquid level of each filling tank in real time, allocates labels according to the liquid level status, adjusts the filling strategy, optimizes the filling process, and avoids excessive filling or premature stopping;

[0071] 3. The present invention uses a safety monitoring module to analyze the temperature and pressure fluctuations of each filling pipeline in real time, promptly discover and handle abnormal situations, prevent equipment damage caused by abnormal temperature or pressure, and ensure safe operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings:

[0073] Figure 1 is a system block diagram of the present invention;

[0074] Figure 2 The present invention is a flow chart of the method. DETAILED DESCRIPTION

[0075] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0076] See also Figure 1 As shown, an automatic packaging system for ethyl orthosilicate includes a deviation correction module, a data acquisition module, a control decision module, an execution module and a safety monitoring module.

[0077] The deviation correction module controls the pumps and valves of each filling pipeline to transfer ethyl orthosilicate from the raw material tank to the filling device. The real-time flow of each filling pipeline during the filling process is obtained, and the flow deviation of each filling pipeline is adjusted through the flow control algorithm to ensure that there is no excessive error between the planned flow and the actual flow of each filling pipeline in the local range.

[0078] The inner diameter di of each sub-packaging pipe i is obtained. The real-time flow rate of ethyl orthosilicate in each sub-packaging pipe i is obtained by a high-precision flow rate sensor at every preset time interval. , and by the preset formula Calculate the real-time flow rate in each filling pipeline i ; Where t is the time of data collection.

[0079] Where i is the number of the packaging pipeline, i=1,2,...,n; n is the total number of packaging pipelines.

[0080] Furthermore, the flow rate of each filling pipeline is fine-tuned to ensure that it fluctuates within a small range around the preset standard flow rate. The specific process is as follows:

[0081] Get the standard flow rate of each filling pipeline i ,in The standard flow rate of each filling pipeline i given by the execution module is calculated by the preset formula Calculate the real-time flow error of each filling pipeline i . Through the preset formula Calculating flow control reference values ;

[0082] Standard flow rate of each filling pipeline i It is subject to feedback control by the execution module, and its specific value is output by the execution module.

[0083] α1 is the preset proportional gain coefficient, which controls the reaction speed to the absolute error; α2 is the preset integral gain coefficient, which controls the reaction speed to the error accumulation; α3 is the preset differential gain coefficient, which controls the reaction speed to the error change rate.

[0084] It should be noted that in the calculation formula of the flow control reference value, The term represents the current flow deviation; The term represents the historical flow deviation, which quantifies the historical accumulated flow deviation during the packaging process; The term represents the rate of change of flow deviation at the current moment, and quantifies the trend change of flow deviation during the packaging process.

[0085] The reference value will be controlled Sent to the control drive of the pumps and valves that control each filling pipeline i.

[0086] According to the flow control reference value The specific value of the control pump speed is adjusted by the preset formula Calculate the pump speed response value of each filling pipeline i , and the specific value of the pump speed of the corresponding filling pipeline is adjusted to ;in is the preset initial speed of the pump of the filling pipeline i; β1 is the preset speed influencing factor; is the upper limit of the pump speed of filling pipeline i.

[0087] According to the flow control reference value The specific value of the valve is used to adjust the opening of the valve, and the preset formula Calculate the valve opening response value of each filling pipeline i, and adjust the specific value of the valve opening of the corresponding filling pipeline to ;in is the preset initial opening of the valve of the filling pipeline i; β2 is the preset opening influencing factor; is the upper limit of the valve opening of the filling pipeline i.

[0088] The data acquisition module collects key data including temperature, pressure and packaging volume during the packaging process, providing raw data for subsequent analysis and execution decisions.

[0089] Access the temperature sensor of each packaging pipeline i and obtain the real-time temperature of each packaging pipeline i at a preset time interval ;

[0090] Access the pressure sensor of each filling pipeline i and obtain the real-time pressure of each filling pipeline i at a preset time interval ;

[0091] Access the liquid level sensor of each filling tank and obtain the real-time liquid level height of each filling tank j at a preset time interval ; where j is the number of the packaging tank, j=1, 2, ..., m; where m is the total number of packaging tanks.

[0092] The real-time temperature of each filling pipeline i , the real-time pressure of each filling pipeline i Send to the security monitoring module;

[0093] The real-time liquid level height of each filling tank j Sent to the decision control module.

[0094] The control decision module conducts a comprehensive analysis on the real-time flow of each filling pipeline i and the real-time liquid level of each filling tank j, determines the filling status, determines the filling status, and generates a filling status label to adjust the filling strategy.

[0095] The filling status is classified according to the real-time liquid level height of each filling tank j, and a filling status label is assigned to each filling tank j. The specific rules are as follows:

[0096] For the sub-packaging tank whose real-time liquid level is equal to the upper limit of the liquid level, it is determined that the sub-packaging tank has completed all the sub-packaging tasks, and it is no longer necessary to inject ethyl orthosilicate into the sub-packaging tank. The sub-packaging tank is given a completed status label.

[0097] For a filling tank whose real-time liquid level is less than the upper limit and greater than 80% of the upper limit, it is determined that the filling tank is about to be filled and the liquid level in the filling tank is close to the target level, but has not yet been completed. The flow rate needs to be precisely controlled for final fine-tuning to ensure that the liquid level reaches the target height accurately and prevent excessive ethyl orthosilicate from flowing into the filling tank. The filling tank is given a status label of "about to be completed";

[0098] For a filling tank whose real-time liquid level is less than or equal to 80% of the upper limit of the liquid level and greater than or equal to 20% of the upper limit of the liquid level, the filling tank is judged to be in the filling process, and it is ensured to smoothly enter the state of being about to be completed. Prevent the filling tank from having an excessively large liquid level growth rate when entering the state of being about to be completed, and the accuracy of the final fine-tuning cannot be guaranteed. Give the filling tank an in-progress status label.

[0099] For a filling tank whose real-time liquid level is less than 20% of the upper limit of the liquid level, it is determined that the liquid in the filling tank is about to run out and the flow rate needs to be increased to ensure the continuity of the filling process. A low liquid level status label is assigned to the filling tank.

[0100] The execution module adjusts the working state of the automatic filling device according to the filling state label provided by the control decision module, controls the overall working state of all filling pipelines and filling tanks, ensures the overall flow balance of all filling pipelines, and realizes the precise filling of ethyl orthosilicate.

[0101] For the filling tank with the completed status label, the filling pipeline is controlled to stop delivering ethyl orthosilicate to the filling tank, that is, the standard flow rate of the filling pipeline i leading to the filling tank is reduced. Adjust to 0;

[0102] For the filling tank with a "to be completed" status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted by a preset liquid level fine-tuning curve to accurately control the liquid level of the filling tank.

[0103] The function of the liquid level fine-tuning curve is:

[0104] ;in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of standard flow rate; is the real-time liquid level height of filling tank j; To adjust the reference liquid level, it represents the final liquid level target value for liquid level fine-tuning; is the upper limit of the liquid level in the filling tank; It is an adjustable parameter that controls the sensitivity of the fine-tuning process; It is an adjustable index that controls the speed of the fine-tuning process.

[0105] For a filling tank with an in-progress status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted by a preset liquid level growth rate convergence curve to ensure that the filling tank has a fixed liquid level growth rate when entering the nearly completed state.

[0106] The function of the liquid level growth rate convergence curve is:

[0107] ;in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of the standard flow rate; is the preset convergence flow rate; δ is the preset logarithmic convergence coefficient, which controls the convergence rate.

[0108] For a filling tank with a low liquid level status label, control the filling pipeline to deliver ethyl orthosilicate to the filling tank at the maximum standard flow rate, that is, the standard flow rate of the filling pipeline i leading to the filling tank Adjust to the preset maximum value .

[0109] The calculated adjustment value of the standard flow rate of the filling pipeline i leading to each filling tank is fed back to the deviation correction module.

[0110] The safety monitoring module monitors the flow changes of each filling pipeline in real time, detects abnormal situations, and automatically takes measures to protect the safety of the filling equipment.

[0111] Real-time temperature of each filling pipeline i and real-time pressure Sent to the security monitoring module for real-time analysis.

[0112] By preset formula Calculate temperature fluctuations , Temperature change rate and temperature safety factor ,in is the historical average temperature of ethyl orthosilicate in the filling pipeline i; is the real-time temperature of the filling pipeline i at the current moment, where is the real-time temperature of the dispensing pipeline i at the last preset time; is the time difference from the current moment to the previous preset moment, where is the maximum allowable temperature of the filling pipeline i; is the minimum allowable temperature of the filling pipeline i; where λ1 is the preset temperature safety influence coefficient;

[0113] By preset formula Calculate pressure fluctuations , Pressure change rate and pressure safety factor ;in is the historical average pressure of ethyl orthosilicate in the filling pipeline i; is the real-time pressure of the filling pipeline i at the current moment, where is the real-time pressure of the dispensing pipeline i at the last preset time; is the time difference from the current moment to the previous preset moment, where is the maximum allowable pressure of the filling pipeline i; is the minimum allowable pressure of the filling pipeline i; where λ2 is the preset pressure safety influence coefficient;

[0114] If it is identified that the temperature safety factor of the filling pipeline i is less than the preset threshold, a temperature alarm signal for the filling pipeline i is triggered, the valve of the filling pipeline i is closed and the pipeline cooling system is started;

[0115] If it is identified that the pressure safety factor of the filling pipeline i is less than the preset threshold, the pressure alarm signal of the filling pipeline i is triggered, the valve of the filling pipeline i is closed and the leakage detection system is started, prompting the production personnel to pay attention to the leakage of the filling pipeline i and check whether the filling tank connected to the filling pipeline i is full.

[0116] See also Figure 2 As shown, a method for automatically dispensing ethyl orthosilicate comprises the following steps:

[0117] Step 1: Data collection and real-time monitoring;

[0118] Collect key data including temperature, pressure and packaging volume during the packaging process to provide raw data for subsequent analysis and execution decisions.

[0119] Access the temperature sensor of each packaging pipeline i and obtain the real-time temperature of each packaging pipeline i at a preset time interval ;

[0120] Access the pressure sensor of each filling pipeline i and obtain the real-time pressure of each filling pipeline i at a preset time interval ;

[0121] Access the liquid level sensor of each filling tank and obtain the real-time liquid level height of each filling tank j at a preset time interval ; where j is the number of the packaging tank, j=1, 2, ..., m; where m is the total number of packaging tanks.

[0122] Step 2: Deviation correction and flow rate fine-tuning;

[0123] The real-time flow of each packaging pipeline during the packaging process is obtained, and the flow deviation of each packaging pipeline is adjusted through the flow control algorithm to ensure that there is no excessive error between the planned flow and the actual flow of each packaging pipeline in the local range.

[0124] The inner diameter di of each sub-packaging pipe i is obtained. The real-time flow rate of ethyl orthosilicate in each sub-packaging pipe i is obtained by a high-precision flow rate sensor at every preset time interval. , and by the preset formula Calculate the real-time flow rate in each filling pipeline i ; Where t is the time of data collection.

[0125] Where i is the number of the packaging pipeline, i=1,2,...,n; n is the total number of packaging pipelines.

[0126] Furthermore, the flow rate of each filling pipeline is fine-tuned to ensure that it fluctuates within a small range around the preset standard flow rate. The specific process is as follows:

[0127] Get the standard flow rate of each filling pipeline i ,in The standard flow value of each filling pipeline i is calculated by the preset formula Calculate the real-time flow error of each filling pipeline i . Through the preset formula Calculating flow control reference values ;

[0128] α1 is the preset proportional gain coefficient, which controls the reaction speed to the absolute error; α2 is the preset integral gain coefficient, which controls the reaction speed to the error accumulation; α3 is the preset differential gain coefficient, which controls the reaction speed to the error change rate.

[0129] The reference value will be controlled Sent to the control drive of the pumps and valves that control each filling pipeline i.

[0130] According to the flow control reference value The specific value of the control pump speed is adjusted by the preset formula Calculate the pump speed response value of each filling pipeline i , and the specific value of the pump speed of the corresponding filling pipeline is adjusted to ;in is the preset initial speed of the pump of the filling pipeline i; β1 is the preset speed influencing factor; is the upper limit of the pump speed of filling pipeline i.

[0131] According to the flow control reference value The specific value of the valve is used to adjust the opening of the valve, and the preset formula Calculate the valve opening response value of each filling pipeline i, and adjust the specific value of the valve opening of the corresponding filling pipeline to ;in is the preset initial opening of the valve of the filling pipeline i; β2 is the preset opening influencing factor; is the upper limit of the valve opening of the filling pipeline i.

[0132] Step 3: Packaging status judgment and decision-making;

[0133] A comprehensive analysis is performed on the collected real-time flow of each filling pipeline i and the real-time liquid level of each filling tank j to determine the filling status, determine the filling status it is in, and generate a control signal to adjust the filling strategy.

[0134] The filling status is classified according to the real-time liquid level height of each filling tank j, and a filling status label is assigned to each filling tank j. The specific rules are as follows:

[0135] For the sub-packaging tank whose real-time liquid level is equal to the upper limit of the liquid level, it is determined that the sub-packaging tank has completed all the sub-packaging tasks, and it is no longer necessary to inject ethyl orthosilicate into the sub-packaging tank. The sub-packaging tank is given a completed status label.

[0136] For a filling tank whose real-time liquid level is less than the upper limit and greater than 80% of the upper limit, it is determined that the filling tank is about to be filled and the liquid level in the filling tank is close to the target level, but has not yet been completed. The flow rate needs to be precisely controlled for final fine-tuning to ensure that the liquid level reaches the target height accurately and prevent excessive ethyl orthosilicate from flowing into the filling tank. The filling tank is given a status label of "about to be completed";

[0137] For a filling tank whose real-time liquid level is less than or equal to 80% of the upper limit of the liquid level and greater than or equal to 20% of the upper limit of the liquid level, the filling tank is judged to be in the filling process, and it is ensured to smoothly enter the state of being about to be completed. Prevent the filling tank from having an excessively large liquid level growth rate when entering the state of being about to be completed, and the accuracy of the final fine-tuning cannot be guaranteed. Give the filling tank an in-progress status label.

[0138] For a filling tank whose real-time liquid level is less than 20% of the upper limit of the liquid level, it is determined that the liquid in the filling tank is about to run out and the flow rate needs to be increased to ensure the continuity of the filling process. A low liquid level status label is assigned to the filling tank.

[0139] Step 4: Flow adjustment and precise control;

[0140] Adjust the working state of the automatic filling device, control the overall working state of all filling pipelines and filling tanks, ensure the overall flow balance of all filling pipelines, and realize the precise filling of ethyl orthosilicate.

[0141] For the filling tank with the completed status label, the filling pipeline is controlled to stop delivering ethyl orthosilicate to the filling tank, that is, the standard flow rate of the filling pipeline i leading to the filling tank is reduced. Adjust to 0;

[0142] For the filling tank with a "to be completed" status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted by a preset liquid level fine-tuning curve to accurately control the liquid level of the filling tank.

[0143] The function of the liquid level fine-tuning curve is:

[0144] ;in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of standard flow rate; is the real-time liquid level height of filling tank j; To adjust the reference liquid level, it represents the final liquid level target value for liquid level fine-tuning; is the upper limit of the liquid level in the filling tank; It is an adjustable parameter that controls the sensitivity of the fine-tuning process; It is an adjustable index that controls the speed of the fine-tuning process.

[0145] For a filling tank with an in-progress status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted by a preset liquid level growth rate convergence curve to ensure that the filling tank has a fixed liquid level growth rate when entering the nearly completed state.

[0146] The function of the liquid level growth rate convergence curve is:

[0147] ,in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of the standard flow rate; is the preset convergence flow rate; δ is the preset logarithmic convergence coefficient, which controls the convergence rate.

[0148] For a filling tank with a low liquid level status label, control the filling pipeline to deliver ethyl orthosilicate to the filling tank at the maximum standard flow rate, that is, the standard flow rate of the filling pipeline i leading to the filling tank Adjust to the preset maximum value .

[0149] Feedback the calculated adjustment value of the standard flow rate of the filling pipeline i leading to each filling tank to step 2;

[0150] Step 5: Security monitoring and alarm response;

[0151] Monitor the flow changes of each filling pipeline in real time, detect abnormal situations, and automatically take measures to protect the safety of filling equipment.

[0152] Get the real-time temperature of each filling pipeline i and real-time pressure And conduct real-time analysis.

[0153] By preset formula Calculate temperature fluctuations , Temperature change rate and temperature safety factor ,in is the historical average temperature of ethyl orthosilicate in the filling pipeline i; is the real-time temperature of the filling pipeline i at the current moment, where is the real-time temperature of the dispensing pipeline i at the last preset time; is the time difference from the current moment to the previous preset moment, where is the maximum allowable temperature of the filling pipeline i; is the minimum allowable temperature of the filling pipeline i; where λ1 is the preset temperature safety influence coefficient;

[0154] By preset formula Calculate pressure fluctuations , Pressure change rate and pressure safety factor ;in is the historical average pressure of ethyl orthosilicate in the filling pipeline i; is the real-time pressure of the filling pipeline i at the current moment, where is the real-time pressure of the dispensing pipeline i at the last preset time; is the time difference from the current moment to the previous preset moment, where is the maximum allowable pressure of the filling pipeline i; is the minimum allowable pressure of the filling pipeline i; where λ2 is the preset pressure safety influence coefficient;

[0155] If it is identified that the temperature safety factor of the filling pipeline i is less than the preset threshold, a temperature alarm signal for the filling pipeline i is triggered, the valve of the filling pipeline i is closed and the pipeline cooling system is started;

[0156] If it is identified that the pressure safety factor of the filling pipeline i is less than the preset threshold, the pressure alarm signal of the filling pipeline i is triggered, the valve of the filling pipeline i is closed and the leakage detection system is started, prompting the production personnel to pay attention to the leakage of the filling pipeline i and check whether the filling tank connected to the filling pipeline i is full.

[0157] It should be understood that the terms “include” and “comprising” used in the specification and claims of the present disclosure indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0158] It should also be understood that the terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. As used in this disclosure and the claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term "and / or" used in this disclosure and the claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations;

[0159] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic packaging system for tetraethyl orthosilicate, comprising a deviation correction module, a data acquisition module, a control decision module and an execution module, characterized in that ； The deviation correction module controls the pumps and valves of each filling pipeline to transfer ethyl orthosilicate from the raw material tank to the filling device; obtains the real-time flow of each filling pipeline during the filling process, and fine-tunes the flow of each filling pipeline through the flow control algorithm, adjusts the flow deviation of each filling pipeline, and ensures that there is no excessive error between the planned flow and the actual flow of each filling pipeline in the local range; The specific process of fine-tuning the flow rate of each filling pipeline through the flow control algorithm is as follows: Obtain the inner diameter di of each sub-packaging pipe i; obtain the real-time flow rate v of ethyl orthosilicate in each sub-packaging pipe i through a high-precision flow rate sensor at every preset time interval i (t), and through the preset formula Calculate the real-time flow rate Q in each filling pipeline i i (t); where t is the time of data collection; Where i is the number of the sub-packaging pipeline, i = 1, 2, ..., n; n is the total number of sub-packaging pipelines; Furthermore, the flow rate of each filling pipeline is fine-tuned to ensure that it fluctuates within a small range around the preset standard flow rate. The specific process is as follows: Get the standard flow rate of each filling pipeline i in The standard flow rate of each filling pipeline i given by the execution module is calculated by the preset formula Calculate the real-time flow error e of each filling pipeline i i (t); through the preset formula Calculate the flow control reference value u i (t); α1 is the preset proportional gain coefficient, which controls the reaction speed to the absolute error; α2 is the preset integral gain coefficient, which controls the reaction speed to the error accumulation; α3 is the preset differential gain coefficient, which controls the reaction speed to the error change rate; Standard flow rate of each filling pipeline It is subject to feedback control by the execution module, and its specific value is output by the execution module; Obtain the standard flow of each filling pipeline, and obtain the implementation flow error of each filling pipeline by calculating the standard flow and the real-time flow; and calculate the flow control reference value by calculating the implementation flow error; The standard flow rate of each filling pipeline is subject to feedback control by the execution module, and its specific value is output by the execution module; Sending control reference values ​​to control drives of pumps and valves that control each dispensing pipeline; Input the specific numerical value of the flow control reference value into the pump speed control formula, calculate the pump speed response value of each filling pipeline, and adjust the specific numerical value of the pump speed of the corresponding filling pipeline to the specific numerical value of the pump speed response value; The valve opening is adjusted according to the specific numerical value of the flow control reference value, the specific numerical value of the flow control reference value is input into the valve opening control formula, the valve opening response value of each filling pipeline is calculated, and the specific numerical value of the valve opening of the corresponding filling pipeline is adjusted to the specific numerical value of the valve opening response value; The data acquisition module collects key data including temperature, pressure, and packaging volume during the packaging process, providing raw data for subsequent analysis and execution decisions; The control decision module conducts a comprehensive analysis of the collected real-time flow of each filling pipeline and the real-time liquid level of each filling tank, determines its filling status, determines its filling status, and generates a filling status label to adjust the filling strategy; The execution module adjusts the working state of the automatic filling device according to the filling state label provided by the control decision module, controls the overall working state of all filling pipelines and filling tanks, ensures the overall flow balance of all filling pipelines, and realizes the precise filling of ethyl orthosilicate.

2. The automatic packaging system for tetraethyl orthosilicate according to claim 1, characterized in that: It also includes a safety monitoring module; The safety monitoring module monitors the flow changes of each filling pipeline in real time, detects abnormal situations, and automatically takes measures to protect the safety of the filling equipment; The real-time temperature and real-time pressure of each filling pipeline are sent to the safety monitoring module for real-time analysis, and monitoring and feedback are carried out based on the analysis results.

3. The automatic packaging system for tetraethyl orthosilicate according to claim 1, characterized in that: The specific process of collecting key data in the packaging process is as follows: Access the temperature sensor of each filling pipeline, and obtain the real-time temperature of each filling pipeline i at a preset time interval; Access the pressure sensor of each filling pipeline, and obtain the real-time pressure of each filling pipeline i at a preset time interval; Access the liquid level sensor of each filling tank and obtain the real-time liquid level height of each filling tank at a preset time interval; Send the real-time temperature and pressure of each filling pipeline to the safety monitoring module; The real-time liquid level height of each filling tank is sent to the decision control module.

4. The automatic packaging system for tetraethyl orthosilicate according to claim 1, characterized in that: The specific process of classifying the filling status according to the real-time liquid level height of each filling tank is as follows: For a filling tank whose real-time liquid level is equal to the upper limit of the liquid level, it is determined that the filling tank has completed all filling tasks and it is no longer necessary to inject ethyl orthosilicate into the filling tank; a completed status label is assigned to the filling tank; For a filling tank whose real-time liquid level is less than the upper limit of the liquid level and greater than 80% of the upper limit of the liquid level, it is determined that the filling tank is about to be filled and the liquid level of the filling tank is close to the target liquid level, but has not yet been completed. It is necessary to accurately control the flow rate for final fine-tuning to ensure that the liquid level accurately reaches the target height and prevent excessive ethyl orthosilicate from flowing into the filling tank; assign a status label of "about to be completed" to the filling tank; For a filling tank whose real-time liquid level is less than or equal to 80% of the upper limit of the liquid level and greater than or equal to 20% of the upper limit of the liquid level, the filling tank is determined to be in the filling process, ensuring that it smoothly enters the state of being about to be completed; prevent the filling tank from having an excessively large liquid level growth rate when entering the state of being about to be completed, and cannot guarantee the accuracy of the final fine-tuning; assign the filling tank an in-progress status label; For a filling tank whose real-time liquid level is less than 20% of the upper limit of the liquid level, it is determined that the liquid in the filling tank is about to run out and the flow rate needs to be increased to ensure the continuity of the filling process, and a low liquid level status label is assigned to the filling tank.

5. The automatic packaging system for tetraethyl orthosilicate according to claim 4, characterized in that: The specific process of adjusting the working status of the automatic dispensing device according to the dispensing status label is as follows: For the filling tank with the completed status label, the filling pipeline is controlled to stop conveying ethyl orthosilicate to the filling tank, that is, the standard flow of the filling pipeline leading to the filling tank is adjusted to 0; For the filling tank with the "to be completed" status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted through the preset liquid level fine-tuning curve to accurately control the liquid level of the filling tank; For a filling tank with an in-progress status label, the standard flow rate of ethyl orthosilicate in the filling pipeline leading to the filling tank is adjusted through a preset liquid level growth rate convergence curve to ensure that the filling tank has a fixed liquid level growth rate when entering the nearly completed state; For a filling tank having a low liquid level status label, the filling pipeline is controlled to transport ethyl orthosilicate to the filling tank at a maximum standard flow rate, that is, the standard flow rate of the filling pipeline i leading to the filling tank is adjusted to a preset maximum value.

6. The automatic packaging system for tetraethyl orthosilicate according to claim 5, characterized in that: The liquid level fine-tuning curve is specifically: in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of standard flow rate; j (t) is the real-time liquid level height of the filling tank j; To adjust the reference liquid level, it represents the final liquid level target value for liquid level fine-tuning; where H j max is the upper limit of the liquid level in the filling tank; Where η is an adjustable parameter that controls the sensitivity of the fine-tuning process; γ is an adjustable index that controls the speed of the fine-tuning process; i is the number of the filling pipeline, and t is the data collection time.

7. The automatic packaging system for tetraethyl orthosilicate according to claim 5, characterized in that: The liquid level growth rate convergence curve is specifically: in is the standard flow rate of the filling pipeline i connected to the filling tank j after adjustment; is the preset maximum value of the standard flow rate; is the preset convergence flow rate; δ is the preset logarithmic convergence coefficient, which controls the convergence rate; i is the number of the packaging pipeline, and t is the data collection time.

8. An automatic dispensing method for ethyl orthosilicate, used to realize an automatic dispensing system for ethyl orthosilicate according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Data collection and real-time monitoring; Collect key data including temperature, pressure, and packaging volume during the packaging process to provide raw data for subsequent analysis and execution decisions; Step 2: Deviation correction and flow rate fine-tuning; Obtain the real-time flow of each packaging pipeline during the packaging process, and adjust the flow deviation of each packaging pipeline through the flow control algorithm to ensure that there is no excessive error between the planned flow and the actual flow of each packaging pipeline in the local range; Step 3: Determine and make decisions on packaging status; Comprehensively analyze the collected real-time flow of each filling pipeline and the real-time liquid level of each filling tank to determine the filling status, determine the filling status, and generate control signals to adjust the filling strategy; Classify the filling status according to the real-time liquid level height of each filling tank, and assign a filling status label to each filling tank, including a completed status label, a nearly completed status label, an ongoing status label, and a low liquid level status label; Step 4: Flow adjustment and precise control; Adjust the working status of the automatic filling device according to the filling status label of each filling tank, control the overall working status of all filling pipelines and filling tanks, ensure the overall flow balance of all filling pipelines, and realize the accurate filling of ethyl orthosilicate; Step 5: Security monitoring and alarm response; Monitor the flow changes of each filling pipeline in real time, detect abnormal situations, and automatically take measures to protect the safety of the filling equipment; obtain the temperature safety factor by calculating the real-time temperature; obtain the pressure safety factor by calculating the real-time pressure; If it is identified that the temperature safety factor of a certain filling pipeline is less than a preset threshold, a temperature alarm signal for the filling pipeline is triggered, the valve of the filling pipeline is closed and the pipeline cooling system is started; If it is identified that the pressure safety factor of a certain filling pipeline is less than the preset threshold, a pressure alarm signal for the filling pipeline is triggered, the valve of the filling pipeline is closed and the leakage detection system is started, prompting production personnel to pay attention to the leakage of the filling pipeline and check whether the filling tank connected to the filling pipeline is full.

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