A pipeline reactor control system for high pressure

Abstract

The present invention relates to the technical field of chemical reaction equipment, and in particular to a pipeline reactor control system for high pressure, the system comprising a pipeline reactor, a data acquisition module, a data analysis module, a data prediction module and a safety monitoring module. The present invention installs pressure and temperature sensors in each block, so that the system can obtain more detailed and accurate parameter distribution inside the reactor, greatly improving the monitoring accuracy and spatial resolution of reaction parameters. The data analysis module determines the abnormal block by calculating the pressure index and temperature index, and dynamically adjusts the acquisition cycle or reaction parameters. The data prediction module predicts based on the adjusted abnormal parameter data, providing the system with a forward-looking judgment basis, which can effectively prevent safety hazards and improve production efficiency. At the same time, the safety monitoring module quickly identifies abnormal situations and takes corresponding early warning and suspension measures, which significantly improves the safety of the reaction process.

Description

Technical Field

[0001] The invention relates to the technical field of chemical reaction equipment, and in particular to a pipeline reactor control system for high pressure. Background Art

[0002] High-pressure pipeline reactors are widely used in the chemical, petroleum, and pharmaceutical industries to achieve complex chemical reactions and material synthesis. This is because when the reactant fluid in the tubular reactor passes through the reactor, the fluid particles between the reactants do not cause mixing along the flow direction. In other words, when the fluid passes through this tubular reactor, it is like a piston movement, which will reduce the back mixing of the tubular reactor and thus have a high production capacity per unit volume. It is particularly suitable for situations requiring a high conversion rate or having series side reactions. However, high-pressure pipeline reactors react under harsh conditions such as high pressure, high temperature, and corrosion. The reaction process is complex and uncertain, so the safety and stability of pipeline reactors are extremely important.

[0003] The patent document with Chinese patent publication number CN103551102A discloses a special-shaped spiral pipe reactor, including an insulation layer, a pipe, a feed port pipe, a discharge port pipe, a heater and a static mixing reactor, characterized in that a first temperature control probe is installed in the cavity of the inner core pipe, an outer pipe is alternately screwed outside the inner core pipe, a spiral partition with equal pitch and consistent angle and a diameter greater than the diameter of the outer pipe by 2-3 cm is welded on the outer wall of the inner core pipe, a spiral groove is arranged on the inner wall of the outer pipe, the pitch of the groove is equal to the pitch of the partition, and the angle of the groove spiral is equal to the partition The spiral angles are consistent, and the width of the groove is the thickness of the partition, forming a special-shaped spiral channel structure. The two ends of the special-shaped spiral channel are staggered up and down and have connected feed port pipes and discharge port pipes respectively. The first heater is installed in the cavity of the inner core pipe, and the second heater is installed on the outer wall of the outer pipe. The outer side of the second heater is equipped with an insulation layer, and a static mixing reactor is installed in the feed port pipe. The second heater is equipped with a second temperature control probe and a third temperature control probe. The feed port pipe is provided with a pressure sensor interface and an auxiliary agent addition interface. The first temperature control probe, the second temperature control probe, and the third temperature control probe are connected to the controller via a transmission line.

[0004] It can be seen that in the actual use of the prior art, it is difficult to adjust the reaction conditions according to the reaction situation during the reaction of the high-pressure reactor and to issue an early warning according to the situation in case of abnormalities to ensure safety. Summary of the invention

[0005] To this end, the present invention provides a control system for a high-pressure pipeline reactor, which is used to solve the problem that it is difficult to adjust the reaction conditions according to the reaction situation during the reaction process of the high-pressure reactor in the actual use of the prior art and to issue early warnings according to the situation in abnormal situations to ensure safety.

[0006] To achieve the above object, the present invention provides a control system for a high-pressure pipeline reactor, comprising:

[0007] A pipeline reactor for performing a chemical reaction under reaction parameters, the reaction parameters including reaction pressure and reaction temperature;

[0008] A data acquisition module, which is connected to the pipeline reactor and is used to divide the pipeline reactor into several blocks, and periodically collect parameter data of each block during the chemical reaction process, wherein the parameter data includes real-time pressure and real-time temperature;

[0009] A data analysis module, connected to the data acquisition module, for analyzing and calculating the parameter data of each block to obtain a pressure index and a temperature index, determining whether there is an abnormal block based on the size of the pressure index and the temperature index, determining a corresponding abnormal ratio based on the abnormal block, and adjusting the first acquisition period of the parameter data of the abnormal block or adjusting the reaction parameter based on the size of the abnormal ratio;

[0010] A data prediction module, which is connected to the data acquisition module and the data analysis module, and is used to obtain the abnormal parameter data of the abnormal block after adjustment, and predict the next abnormal parameter data according to the abnormal parameter data collected after adjustment to obtain predicted parameter data, wherein the predicted parameter data includes predicted pressure and predicted temperature;

[0011] A safety monitoring module is connected to the pipeline reactor, the data acquisition module and the data prediction module, and is used to determine whether the chemical reaction is abnormal through the predicted parameter data and the next abnormal parameter data, and to issue an early warning and shut down the pipeline reactor based on the determination result of the abnormal chemical reaction.

[0012] Furthermore, the data acquisition module includes a pressure acquisition unit and a temperature acquisition unit.

[0013] The pressure acquisition unit is used to periodically acquire the real-time pressure of each block during the chemical reaction process according to the first acquisition period;

[0014] The temperature acquisition unit is used to periodically acquire the real-time temperature of each block during the chemical reaction process according to the first acquisition period.

[0015] Furthermore, the data analysis module includes a judging unit and a determining unit.

[0016] The determination unit is used to calculate the pressure index and temperature index of each block, and is provided with a preset standard pressure range and a standard temperature range, including a standard pressure upper limit, a standard pressure lower limit, and a standard temperature upper limit, and a standard temperature lower limit.

[0017] The determination unit is connected to the judgment unit, and is used to determine the abnormal proportion of the number of abnormal blocks with abnormal parameter data to the total number of blocks when the judgment result is any one of abnormal pressure or abnormal temperature.

[0018] Further, the data analysis module also includes an adjustment unit connected to the determination unit, which is preset with an abnormal ratio threshold value, for comparing the abnormal ratio with the abnormal ratio threshold value, and adjusting the first acquisition period of the abnormal parameter data of the abnormal block or adjusting the reaction parameter based on the comparison result, wherein,

[0019] When the abnormal proportion is greater than the abnormal proportion threshold, adjusting the first acquisition period of the abnormal parameter data of the abnormal block;

[0020] When the abnormal ratio is less than or equal to the abnormal ratio threshold, the reaction parameter is adjusted.

[0021] Furthermore, the adjustment unit reduces and adjusts the first acquisition period of the abnormal parameter data of the abnormal block to obtain a second acquisition period, and the data acquisition module uses the second acquisition period to acquire the abnormal parameter data of the abnormal block.

[0022] Furthermore, the data prediction module obtains several adjusted abnormal parameter data after the adjustment unit adjusts the first acquisition period of the abnormal parameter data of the abnormal block or adjusts the reaction parameter, and predicts the next abnormal parameter data by analyzing the change trend of the obtained several abnormal reaction parameter data.

[0023] Furthermore, the safety monitoring module includes a prediction and determination unit and an early warning unit.

[0024] The prediction determination unit is used to calculate the difference between the prediction parameter data of the abnormal block and the next reaction parameter to obtain a prediction deviation, and determine whether the prediction is accurate according to the prediction deviation;

[0025] The early warning unit is connected to the prediction determination unit to determine whether the reaction is abnormal when the prediction determination unit determines that the prediction is accurate, and to issue an early warning and shut down the pipeline reactor when it is determined that the reaction is abnormal.

[0026] Furthermore, the prediction determination unit is preset with a prediction deviation threshold, and the prediction determination unit determines whether the prediction is accurate by comparing the prediction deviation with the prediction deviation threshold, wherein the prediction is determined to be accurate when the prediction deviation is less than the preset deviation threshold.

[0027] Furthermore, when the prediction determination unit determines that the prediction is accurate, the early warning unit compares the prediction parameter data with the abnormal parameter data before adjustment, and determines whether the chemical reaction in the abnormal block is abnormal based on the comparison result.

[0028] Furthermore, the early warning unit determines that the reaction is abnormal based on the determination result that the predicted parameter data is greater than or equal to the abnormal parameter data before adjustment, issues an early warning for the abnormal block and shuts down the pipeline reactor.

[0029] Compared with the prior art, the beneficial effect of the present invention lies in that, by installing pressure and temperature sensors in each block, the system can obtain more detailed and accurate parameter distribution inside the reactor, greatly improving the monitoring accuracy and spatial resolution of the reaction parameters. The data analysis module determines the abnormal blocks by calculating the pressure index and temperature index, and dynamically adjusts the acquisition cycle or reaction parameters. The data prediction module makes predictions based on the adjusted abnormal parameter data, providing the system with a forward-looking judgment basis, which can effectively prevent safety hazards and improve production efficiency. At the same time, the safety monitoring module quickly identifies abnormal situations and takes corresponding early warning and suspension measures, significantly improving the safety of the reaction process.

[0030] Furthermore, the pressure acquisition unit and the temperature acquisition unit start collecting data at the same time according to the same collection cycle, which ensures the synchronization of the data and can accurately capture the instantaneous relationship between pressure and temperature during the chemical reaction process, providing a highly reliable and relevant data set for subsequent data analysis. At the same time, the system can comprehensively monitor the entire chemical reaction process, detect local anomalies in a timely manner, and effectively prevent potential safety hazards.

[0031] Furthermore, through the coordinated work of the judgment unit and the determination unit, accurate monitoring and abnormal judgment of the pressure and temperature parameters of each block of the system are achieved. By calculating the pressure index and temperature index, the abnormal situation can be quickly judged according to the size of the calculated index. The determination unit further analyzes the proportion of abnormal blocks, which is beneficial to the analysis of the overall operation of the system, helps the system to make corresponding adjustments according to the situation, and enhances the safety and reliability of the high-pressure pipeline reactor control system.

[0032] Furthermore, by setting the abnormal proportion threshold, the system can automatically select different adjustment strategies according to the severity of the abnormal situation. It can adjust the data collection frequency for local abnormalities and adjust parameters in large-scale abnormalities, which helps to reduce resource waste and improve operational efficiency.

[0033] Furthermore, the collection cycle is adjusted only for abnormal blocks, avoiding unnecessary data collection and reducing monitoring pressure. By shortening the collection cycle of abnormal blocks, abnormal parameter data can be collected more frequently, so that the parameter change trend can be grasped more timely and accurately, which is conducive to quickly discovering and handling abnormal situations.

[0034] Furthermore, by analyzing the adjusted real-time data and making predictions based on the latest data change trends, it helps to predict the system's response in advance, helps to detect problems in a timely manner, and enhances the security of the entire system.

[0035] Furthermore, by calculating the difference between the predicted parameter data of the abnormal block and the parameters of the next reaction, the accuracy of the prediction can be accurately evaluated. When the prediction is determined to be accurate, the early warning unit will further determine whether the reaction is abnormal. This not only improves the detection accuracy of abnormal situations, but also can promptly discover and deal with potential safety hazards, thereby improving the safety and reliability of the entire reaction system.

[0036] Furthermore, by setting a prediction deviation threshold, the system can effectively distinguish the accuracy of the prediction. When the system determines that the prediction result is accurate, it will further compare the predicted parameter data with the abnormal parameter data before adjustment, so as to accurately determine whether the chemical reaction is abnormal. This helps to identify potential abnormal reactions in a timely and effective manner and take necessary measures to avoid possible dangers, which helps to improve the safety and efficiency of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a system framework diagram of a high-pressure pipeline reactor control system according to an embodiment of the present invention;

[0038] Figure 2 This is a structural diagram of a data acquisition module according to an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of a data analysis module according to an embodiment of the present invention;

[0040] Figure 4 It is a schematic diagram of the structure of the safety monitoring module according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0043] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0044] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] See also Figure 1 ,like Figure 1 As shown, it is a system framework diagram of a high-pressure pipeline reactor control system according to an embodiment of the present invention;

[0046] Specifically, an embodiment of the present invention provides a pipeline reactor control system for high pressure, comprising:

[0047] A pipeline reactor for performing a chemical reaction under reaction parameters, the reaction parameters including reaction pressure and reaction temperature;

[0048] A data acquisition module, which is connected to the pipeline reactor and is used to divide the pipeline reactor into several blocks, and periodically collect parameter data of each block during the chemical reaction process, wherein the parameter data includes real-time pressure and real-time temperature;

[0049] A data analysis module, connected to the data acquisition module, for analyzing and calculating the parameter data of each block to obtain a pressure index and a temperature index, determining whether there is an abnormal block based on the size of the pressure index and the temperature index, determining a corresponding abnormal ratio based on the abnormal block, and adjusting the first acquisition period of the parameter data of the abnormal block or adjusting the reaction parameter based on the size of the abnormal ratio;

[0050] A data prediction module, which is connected to the data acquisition module and the data analysis module, and is used to obtain the abnormal parameter data of the abnormal block after adjustment, and predict the next abnormal parameter data according to the abnormal parameter data collected after adjustment to obtain predicted parameter data, wherein the predicted parameter data includes predicted pressure and predicted temperature;

[0051] A safety monitoring module is connected to the pipeline reactor, the data acquisition module and the data prediction module, and is used to determine whether the chemical reaction is abnormal through the predicted parameter data and the next abnormal parameter data, and to issue an early warning and shut down the pipeline reactor based on the determination result of the abnormal chemical reaction.

[0052] Specifically, the data acquisition module is equipped with a pressure sensor and a temperature sensor in each block to respectively collect the pressure and temperature during the reaction process. When the safety monitoring module determines that the chemical reaction is abnormal, it will issue an early warning to the block where the abnormality occurs. The pressure sensor and the temperature sensor need to work normally under a high temperature and high pressure environment, and their specific structure is not limited here.

[0053] Specifically, by installing pressure and temperature sensors in each block, the system can obtain more detailed and accurate parameter distribution inside the reactor, greatly improving the monitoring accuracy and spatial resolution of reaction parameters. The data analysis module determines abnormal blocks by calculating the pressure index and temperature index, and dynamically adjusts the acquisition cycle or reaction parameters. The data prediction module makes predictions based on the adjusted abnormal parameter data, providing the system with a forward-looking judgment basis, which can effectively prevent safety hazards and improve production efficiency. At the same time, the safety monitoring module quickly identifies abnormal situations and takes corresponding early warning and suspension measures, significantly improving the safety of the reaction process.

[0054] See also Figure 2 ,like Figure 2 As shown, it is a structural diagram of a data acquisition module according to an embodiment of the present invention;

[0055] Specifically, the data acquisition module includes a pressure acquisition unit and a temperature acquisition unit.

[0056] The pressure acquisition unit is used to periodically acquire the real-time pressure of each block during the chemical reaction process according to the first acquisition period;

[0057] The temperature acquisition unit is used to periodically acquire the real-time temperature of each block during the chemical reaction process according to the first acquisition period.

[0058] Specifically, the pressure acquisition unit and the temperature acquisition unit both acquire the real-time pressure and real-time temperature of each block according to the first acquisition cycle N1, and the pressure acquisition unit and the temperature acquisition unit start acquisition at the same time.

[0059] Specifically, the pressure acquisition unit and the temperature acquisition unit start collecting data at the same time according to the same collection cycle, ensuring the synchronization of the data. They can accurately capture the instantaneous relationship between pressure and temperature during the chemical reaction process, providing a highly reliable and relevant data set for subsequent data analysis. At the same time, the system can comprehensively monitor the entire chemical reaction process, detect local anomalies in a timely manner, and effectively prevent potential safety hazards.

[0060] See also Figure 3 ,like Figure 3 As shown, it is a schematic diagram of the structure of the data analysis module of an embodiment of the present invention;

[0061] Specifically, the data analysis module includes a judging unit and a determining unit.

[0062] The determination unit is used to calculate the pressure index and temperature index of each block, which is set with a preset standard pressure range and a standard temperature range, including a standard pressure upper limit, a standard pressure lower limit, a standard temperature upper limit, and a standard temperature lower limit. The pressure index PI=(P-Pmin) / (Pmax-Pmin), the temperature index TI=(T-Tmin) / (Tmax-Tmin), wherein,

[0063] P is the real-time pressure, Pmin is the lower limit of the standard pressure, Pmax is the upper limit of the standard pressure, T is the real-time temperature, Tmin is the lower limit of the standard temperature, Tmax is the upper limit of the standard temperature. When PI is less than 0 or PI is greater than 1, it is judged as a pressure abnormality; when TI is less than 0 or TI is greater than 1, it is judged as a temperature abnormality.

[0064] The determination unit is connected to the judgment unit, and is used to determine the abnormal proportion of the number of abnormal blocks with abnormal parameter data to the total number of blocks when the judgment result is any one of abnormal pressure or abnormal temperature.

[0065] In the specific implementation process, in one reaction, the preset standard temperature lower limit Tmin=380℃, the standard temperature upper limit Tmax=420℃, the standard temperature lower limit Tmin=13.0MPa, the standard temperature upper limit Tmax=15.0Mpa, in one block, the real-time pressure P=15.5MPa, the pressure index PI=(15.5-13.0) / (15.0-13.0)=1.25, PI is greater than 1, it is judged as abnormal pressure, the real-time temperature T=400℃, then, the temperature index TI=(400-380) / (420-380)=0.5, TI is greater than 0 and less than 1, and the temperature is judged to be normal. In another block, the real-time pressure P=14.0MPa, the pressure index PI=(14.0-13.0) / (15.0-13.0)=0.5, PI is greater than 0 and less than 1, and the pressure is judged to be normal. The real-time temperature T=370℃, then, the temperature index TI=(370-380) / (420-380)=-0.25, TI is less than 0, and the temperature is judged to be abnormal.

[0066] Specifically, through the coordinated work of the judgment unit and the determination unit, accurate monitoring and abnormal judgment of the pressure and temperature parameters of each block of the system are achieved. By calculating the pressure index and temperature index, the abnormal situation can be quickly judged according to the size of the calculated index. The determination unit further analyzes the proportion of abnormal blocks, which is conducive to the analysis of the overall operation of the system, helps the system to make corresponding adjustments according to the situation, and enhances the safety and reliability of the high-pressure pipeline reactor control system.

[0067] Specifically, the data analysis module further includes an adjustment unit connected to the determination unit, which is preset with an abnormal ratio threshold value, for comparing the abnormal ratio with the abnormal ratio threshold value, and adjusting the first acquisition period of the abnormal parameter data of the abnormal block or adjusting the reaction parameter based on the comparison result, wherein,

[0068] When the abnormal proportion is greater than the abnormal proportion threshold, adjusting the first acquisition period of the abnormal parameter data of the abnormal block;

[0069] When the abnormal ratio is less than or equal to the abnormal ratio threshold, the reaction parameter is adjusted.

[0070] Specifically, the abnormal proportion A=X / X0*100%, X is the number of abnormal blocks, and X0 is the total number of blocks, wherein the adjustment unit adjusts the first acquisition period of the abnormal parameter data of the abnormal block when the abnormal proportion A is greater than the abnormal proportion threshold A0;

[0071] When the abnormal proportion A is less than or equal to the abnormal proportion threshold A0, the reaction parameter is adjusted.

[0072] In the specific implementation process, the abnormal proportion threshold A0=50% is preset, the total number of blocks of the pipeline reactor X0=10, when the number of abnormal blocks X=3, the abnormal proportion A=3 / 10*100%=30%, then A is less than A0, and the adjustment unit adjusts the first acquisition period of the abnormal parameter data; when the number of abnormal blocks X=6, the abnormal proportion A=6 / 10*100%=60%, then A is greater than A0, and the adjustment unit adjusts the reaction parameter.

[0073] Specifically, by setting the abnormal proportion threshold, the system can automatically select different adjustment strategies according to the severity of the abnormal situation. It can adjust the data collection frequency for local abnormalities and adjust parameters in large-scale abnormalities, which helps to reduce resource waste and improve operational efficiency.

[0074] Specifically, the adjustment unit reduces and adjusts the first acquisition period of the abnormal parameter data of the abnormal block to obtain a second acquisition period, and the data acquisition module uses the second acquisition period to acquire the abnormal parameter data of the abnormal block.

[0075] During the specific implementation process, when the abnormal proportion is less than the abnormal proportion threshold and the real-time temperature collected by several blocks is abnormal, the adjustment unit reduces the temperature collection period NI=10min of these abnormal blocks to obtain the second collection period N2=5min, and collects the temperature of these abnormal blocks in the subsequent reaction process according to the second collection period N2=5min.

[0076] Specifically, the collection cycle is adjusted only for abnormal blocks, which avoids unnecessary data collection and reduces monitoring pressure. By shortening the collection cycle of abnormal blocks, abnormal parameter data can be collected more frequently, so that the parameter change trend can be grasped more timely and accurately, which is conducive to quickly discovering and handling abnormal situations.

[0077] Specifically, the data prediction module obtains several adjusted abnormal parameter data after the adjustment unit adjusts the first acquisition period of the abnormal parameter data of the abnormal block or adjusts the reaction parameter, and predicts the next abnormal parameter data by analyzing the change trend of the obtained several abnormal reaction parameter data.

[0078] During the specific implementation process, the temperature of a certain block was abnormal. After the adjustment unit adjusted the first acquisition cycle of the temperature of the abnormal block, the temperatures of the six cycles were 452°C, 454°C, 456°C, 458°C, 460°C, and 462°C respectively. The data prediction module analyzed that the temperature showed a linear upward trend and predicted that the next abnormal parameter data would be 464°C.

[0079] Specifically, by analyzing the adjusted real-time data and making predictions based on the latest data change trends, it helps to predict the system's response in advance, helps to detect problems in a timely manner, and enhances the security of the entire system.

[0080] See also Figure 4 ,like Figure 4 As shown, it is a schematic diagram of the structure of the safety monitoring module according to an embodiment of the present invention;

[0081] Specifically, the safety monitoring module includes a prediction and determination unit and an early warning unit.

[0082] The prediction determination unit is used to calculate the difference between the prediction parameter data of the abnormal block and the next reaction parameter to obtain a prediction deviation, and determine whether the prediction is accurate according to the prediction deviation;

[0083] The early warning unit is connected to the prediction determination unit to determine whether the reaction is abnormal when the prediction determination unit determines that the prediction is accurate, and to issue an early warning and shut down the pipeline reactor when it is determined that the reaction is abnormal.

[0084] Specifically, the prediction deviation includes a pressure prediction deviation Vp=|Py-P| and a temperature prediction deviation Vt=|Ty-T|, where Py is the predicted pressure and Ty is the predicted temperature. The prediction deviation is determined by calculating the difference between the predicted data of the abnormal block and the next reaction parameter. In a specific implementation, the predicted temperature of a block is Ty=464°C, and the next temperature collected by the data acquisition module is T=466°C, then the temperature prediction deviation Vt=|464°C-466°C|=2°C.

[0085] Specifically, by calculating the difference between the predicted parameter data of the abnormal block and the parameters of the next reaction, the accuracy of the prediction can be accurately evaluated. When the prediction is determined to be accurate, the early warning unit will further determine whether the reaction is abnormal. This not only improves the detection accuracy of abnormal situations, but also can promptly discover and deal with potential safety hazards, thereby improving the safety and reliability of the entire reaction system.

[0086] Specifically, the prediction determination unit is preset with a prediction deviation threshold, and the prediction determination unit determines whether the prediction is accurate by comparing the prediction deviation with the prediction deviation threshold, wherein the prediction is determined to be accurate when the prediction deviation is less than the preset deviation threshold;

[0087] A prediction error is determined when the prediction deviation is greater than a preset deviation threshold.

[0088] In the specific implementation process, the preset predicted temperature deviation threshold is 5°C, the temperature prediction deviation of a block is 2°C, and if 2°C is less than 5°C, it is determined that the prediction is accurate.

[0089] Specifically, when the prediction determination unit determines that the prediction is accurate, the early warning unit compares the prediction parameter data with the abnormal parameter data before adjustment, and determines whether the chemical reaction in the abnormal block is abnormal based on the comparison result.

[0090] Specifically, when the prediction is accurate, it means that the parameter data change trend at this time is accurate. The early warning unit compares the predicted parameter data with the abnormal parameter data before adjustment to determine whether the abnormal data is further abnormal.

[0091] Specifically, the early warning unit determines that the reaction is abnormal based on the judgment result that the predicted parameter data is greater than or equal to the abnormal parameter data before adjustment, issues an early warning for the abnormal block and shuts down the pipeline reactor;

[0092] When the predicted parameter data is less than the abnormal parameter data before adjustment, it is determined that the reaction is normal.

[0093] In the specific implementation process, when the abnormal temperature of an abnormal block before adjustment is T=451℃, the predicted temperature is Ty=466℃, and Ty is greater than T, the early warning unit determines that the reaction in this block is abnormal, issues an early warning for the abnormal block and shuts down the pipeline reactor. When the abnormal temperature of an abnormal block before adjustment is T=451℃, the predicted temperature is Ty=444℃, and Ty is less than T, the early warning unit determines that the reaction in this block is normal and does not issue an early warning.

[0094] Specifically, by setting the prediction deviation threshold, the system can effectively distinguish the accuracy of the prediction. When the system determines that the prediction result is accurate, it will further compare the predicted parameter data with the abnormal parameter data before adjustment, so as to accurately determine whether the chemical reaction is abnormal. This helps to identify potential abnormal reactions in a timely and effective manner and take necessary measures to avoid possible dangers, which helps to improve the safety and efficiency of the production process.

[0095] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline reactor control system for high pressure, characterized in that: include: A pipeline reactor for performing a chemical reaction under reaction parameters, the reaction parameters including reaction pressure and reaction temperature; A data acquisition module, which is connected to the pipeline reactor and is used to divide the pipeline reactor into several blocks, and periodically collect parameter data of each block during the chemical reaction process, wherein the parameter data includes real-time pressure and real-time temperature; A data analysis module, connected to the data acquisition module, for analyzing and calculating the parameter data of each block to obtain a pressure index and a temperature index, determining whether there is an abnormal block based on the size of the pressure index and the temperature index, determining a corresponding abnormal ratio based on the abnormal block, and adjusting the first acquisition period of the parameter data of the abnormal block or adjusting the reaction parameter based on the size of the abnormal ratio; A data prediction module, which is connected to the data acquisition module and the data analysis module, and is used to obtain the abnormal parameter data of the abnormal block after adjustment, and predict the next abnormal parameter data according to the abnormal parameter data collected after adjustment to obtain predicted parameter data, wherein the predicted parameter data includes predicted pressure and predicted temperature; A safety monitoring module, which is connected to the pipeline reactor, the data acquisition module and the data prediction module, and is used to determine whether the chemical reaction is abnormal through the predicted parameter data and the next abnormal parameter data, and to issue an early warning and shut down the pipeline reactor based on the determination result of the abnormal chemical reaction; The data analysis module includes a judging unit and a determining unit. The determination unit is used to calculate the pressure index and temperature index of each block, which is set with a preset standard pressure range and a standard temperature range, including a standard pressure upper limit, a standard pressure lower limit, a standard temperature upper limit, and a standard temperature lower limit. The pressure index PI=(P-Pmin) / (Pmax-Pmin), the temperature index TI=(T-Tmin) / (Tmax-Tmin), wherein, P is the real-time pressure, Pmin is the lower limit of the standard pressure, Pmax is the upper limit of the standard pressure, T is the real-time temperature, Tmin is the lower limit of the standard temperature, Tmax is the upper limit of the standard temperature. When PI is less than 0 or PI is greater than 1, it is judged as a pressure abnormality, and when TI is less than 0 or TI is greater than 1, it is judged as a temperature abnormality; The determination unit is connected to the judgment unit, and is used to determine the abnormal proportion of the number of abnormal blocks with abnormal parameter data to the total number of blocks when the judgment result is any one of abnormal pressure or abnormal temperature.

2. The pipeline reactor control system for high pressure according to claim 1, characterized in that: The data acquisition module includes a pressure acquisition unit and a temperature acquisition unit. The pressure acquisition unit is used to periodically acquire the real-time pressure of each block during the chemical reaction process according to the first acquisition period; The temperature acquisition unit is used to periodically acquire the real-time temperature of each block during the chemical reaction process according to the first acquisition period.

3. The pipeline reactor control system for high pressure according to claim 1, characterized in that: The safety monitoring module includes a prediction and determination unit and an early warning unit. The prediction determination unit is used to calculate the difference between the prediction parameter data of the abnormal block and the next reaction parameter to obtain a prediction deviation, and determine whether the prediction is accurate according to the prediction deviation; The early warning unit is connected to the prediction determination unit to determine whether the reaction is abnormal when the prediction determination unit determines that the prediction is accurate, and to issue an early warning and shut down the pipeline reactor when it is determined that the reaction is abnormal.

4. The pipeline reactor control system for high pressure according to claim 3, characterized in that: The prediction determination unit is preset with a prediction deviation threshold, and the prediction determination unit compares the prediction deviation with the prediction deviation threshold to determine whether the prediction is accurate, wherein the prediction is determined to be accurate when the prediction deviation is less than the preset deviation threshold.

5. The pipeline reactor control system for high pressure according to claim 4, characterized in that: When the prediction determination unit determines that the prediction is accurate, the early warning unit compares the prediction parameter data with the abnormal parameter data before adjustment, and determines whether the chemical reaction in the abnormal block is abnormal based on the comparison result.

6. The pipeline reactor control system for high pressure according to claim 5, characterized in that: The early warning unit determines that the reaction is abnormal based on the judgment result that the predicted parameter data is greater than or equal to the abnormal parameter data before adjustment, issues an early warning for the abnormal block and shuts down the pipeline reactor.

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