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The Status and Improvement of Lightning Fire Prevention Technology for Large Floating Roof Storage Tanks Automation in Petro-Chemical Industry    2023, 59 (1): 0-0.   Abstract （488）            Knowledge map    Save With the development trend of large-scale tank design and construction, it is of great practical significance to ensure the safe operation of tanks and prevent lightning fire accidents. For large floating roof storage tank, special attention shall be paid to prevent lightning fire of sealing device. Combined with several typical tank fire accidents, the reasons of seal device failure in tank design, construction and operation and maintenance are analyzed. The present situation and existing problems of domestic storage tank lightning protection technology are expounded from the aspects of second sealing device, electrical connection of facilities, lightning protection and grounding detection. The design concept and application of new oil&gas free sealing device, active nitrogen protection system and lightning warning system for storage tanks are introduced. From the aspects of design, construction, sealing device form, tank lightning fire fighting and tank safety management mode, the measures and suggestions to enhance the ability of tank to prevent lightning fire risk are put forward. Related Articles | Metrics

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Perforation Depth Control Method Based on Casing Hoop Automatic Tracking and Recognition Technology Automation in Petro-Chemical Industry    2022, 58 (5): 0-0.   Abstract （573）            Knowledge map    Save Related Articles | Metrics

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The overall framework design of the Shaanxi Beijing gas pipeline from "automatic distribution" to "intelligent distribution" Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （241）            Knowledge map    Save Natural gas distribution control technology is key to ensuring the safe, smooth, and efficient operation of oil and gas pipelines. Under the background of digital transformation, the construction of smart pipeline networks provides strong support for the updating and upgrading traditional automatic distribution control technology. The research status of automatic distribution control technology is introduced based on briefly describing the concept of a smart pipeline network. The principle and main methods of the ShanJing pipeline distribution control technology were elaborated based on the actual site conditions. In response to the shortcomings of the current automatic distribution control technology for the Shanjing pipeline, a plan has been proposed to transform from "automatic distribution" to "intelligent distribution" around the perception layer, control layer, and maintenance layer, providing a solution for improving the construction of smart oil and gas pipeline networks and the development of automatic distribution. Related Articles | Metrics

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Discussion on interlocking shutdown level setting of natural gas purification plant Automation in Petro-Chemical Industry    2022, 58 (4): 0-0.   Abstract （111）            Knowledge map    Save Related Articles | Metrics

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Research on protective layer strategy in high pressure string to low pressure reformation Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （398）            Knowledge map    Save The protective layer analysis (LOPA) method was used to identify the effectiveness of each protective layer in the dangerous scenario of high pressure string and low pressure in petrochemical plant. The LOPA method and its characteristics are introduced, and the failure data of various dangerous scenarios are compared according to the actual transformation cases. The total protection layer failure data is calculated according to the LOPA Settings in different series pressures. By exploring the better series pressure transformation scheme, the risk reduction in different scenarios can be identified effectively, and reasonable and effective improvement measures can be selected, which provides a theoretical basis for the high pressure series low pressure transformation of petrochemical equipment Related Articles | Metrics

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Principle of air path components and fault maintenance of Siemens valve positioner Automation in Petro-Chemical Industry    2023, 59 (3): 0-0.   Abstract （219）            Knowledge map    Save In order to reduce the operation cost of enterprises, improve the utilization rate of instruments, improve the quality of instrument maintenance and repair. The main reason of high failure rate of valve Positioner is analyzed from the air path part which is most easily damaged, and the internal structure and control principle of piezoelectric module are introduced in detail. It is found that the frequent action of piezoelectric valve in positioner caused by valve leakage is the main cause of positioner failure. By replacing the isolation diaphragm and the inlet/outlet piezoelectric valve, the problem that the positioner's air path component is easy to be damaged is solved. It ensures the smooth operation of the plant and provides a reference for peer maintenance and repair. Related Articles | Metrics

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Research on the application of automatic tank level gauge Automation in Petro-Chemical Industry    2023, 59 (5): 0-0.   Abstract （132）            Knowledge map    Save Level data in the tank(vessel) is significant in the oil static gauge. It has become the development trend to obtain the level data of tank (vessel) by using mounted automatic level gauge.It is found in practice that the accuracy of the data obtained by the automatic level gauge is affected by the uncertainty of the instrument and the operating condition, among which the operating conditions play a major role. According to the influencing factors, suggestions that selection, calibration, installation and calibration of the fixed automatic liquid level gauge are proposed. The above suggestions help improve the accuracy of the level data by automatic level gauge. Related Articles | Metrics

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Analysis and Research on Engineering Design Patterns in the Digital Background Automation in Petro-Chemical Industry    2024, 60 (3): 0-0.   Abstract （60）            Knowledge map    Save The current integrated engineering design mode based on intelligent software is not yet perfect, and cannot meet the data utilization needs of digital factories and intelligent factories in the later stage. By analyzing the current situation of engineering design patterns during the construction period, the challenges faced by the current integrated design pattern are pointed out. Taking the practice of an engineering company as an example, this paper introduces the exploration and practice process of digital design for all majors, and proposes a digital construction method of engineering design.The practical application shows that data structuring and online flow of design conditions can be realized through digital transformation, which provides reference for the future development direction of engineering design mode. Related Articles | Metrics

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Analysis and Corresponding Measures of Two interlocking actions in Ethylene Cracked Furnace Automation in Petro-Chemical Industry    2024, 60 (4): 0-0.   Abstract （176）            Knowledge map    Save Related Articles | Metrics

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Current Situation and Countermeasures of Industrial Control System's Network Security in Petrochemical Enterprises Zhen LI Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Industrial control system is widely used in the industrial production of refining and chemical enterprises and plays an important role. The deep integration of automation and information technology and the rapid development of the Internet of Things make the industrial control system network face increasing threats. By analyzing the network security of industrial control system in refining and chemical enterprises, proposes the method of constructing an effective security management system, gives the scheme of network security risk control.The deep defense framework of industrial control system is put forward, and the main defense measures are given. Related Articles | Metrics

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Design and application of intelligent cloud platform for instrument control equipment based on chemical industry Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save At present, with the rapid development of the industrial Internet, the digital and intelligent transformation of instrument control equipment in the chemical industry has become very important. Aiming at the problems of heavy operation and maintenance workload of instrument control equipment in chemical industry, data "information island", data alarm overflow, data visualization, data lack of integrated management and so on, the design and implementation method of intelligent cloud platform of instrument control equipment based on supOS industrial interconnection platform was proposed. The platform proposed the "1+X" design scheme, "1" is an industrial Internet platform, "X" is a number of business industrial APP applications, namely, the location management of instrument control equipment, alarm management of instrument control equipment, intelligent inspection of instrument control equipment, high-frequency fault statistical analysis, instrument control equipment health status visualization and other extendable business applications. The platform has achieved good results in chemical industry enterprises, helping enterprises to efficiently and intelligently manage instrument control equipment, reduce enterprise management costs, and improve production efficiency. Under the background of the development of industrial Internet, this research has certain reference significance in the chemical industry. Related Articles | Metrics

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Research on defect identification method of pipeline weld based on fusion machine learning Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Abstract: In order to improve the automatic identification of different defect types in pipeline welds, based on the excavated X-ray welds images, the pooled layer operation of the traditional convolutional neural network was modified by using the square difference pooling method by comparing the variance information of the pooled domain and the feature map, and then the CNN model hyperparameters were selected by using the whale algorithm. Finally, a fusion machine learning model is formed for the classification of weld defects, and compared with other models. The results show that the whale algorithm can optimize parameters such as the number and size of convolutional nuclei, the number and size of pooled nuclei, the type of convolutional kernel activation function, and the learning rate in a short time. In the classification results of fusion machine learning model, the classification accuracy of unfused and unwelded defects is the highest, reaching 93%~100% under different training rounds, and the average classification accuracy of 5 defect types is between 90.6%~95.8%. The proposed model is superior to other CNN models and SVM models in classification accuracy, training time and stability. The research results can provide practical reference for the identification of weld defects in other pressure vessels or pressure pipelines, and have strong universality and expansibility. Related Articles | Metrics

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屋顶分布式光伏电站油田计量间的应用 Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Research on Continuous Monitoring Technology for CO2 Concentration of Shale Oil Associated Natural Gas Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save During shale oil well fracturing a large amount of CO2 is injected. These CO2 will be produced with the production of crude oil and natural gas. In order to accurately understand the CO2 production situation, the research group has conducted research on online continuous monitoring technology of associated gas CO2 concentration. A continuous monitoring device for CO2 concentration based on infrared gas analysis method has been developed and applied in shale oil wells. Real time and continuous monitoring of CO2 concentration in shale oil associated gas has been achieved. The data accuracy performance meets the requirements of data acquisition and production management, and the detection results are fast, accurate, and efficient, greatly reducing the labor intensity of manual labor. Related Articles | Metrics

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Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Exploration and Application of Methods to Increase Torque in Single-Acting Pneumatic Actuators Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save In single-acting pneumatic shut-off valves, the valve is reset by relying on a spring when there is a loss of air. However, for pneumatic shut-off valves with a ball valve body, if the torque selection is too conservative, it is easy to encounter valve sticking, which fails to provide the necessary safety protection and poses significant risks. This article analyzes the internal structure of pneumatic shut-off valves and summarizes the causes of valve sticking. With the principle of reducing costs and increasing efficiency, without changing the original design, innovative methods to increase torque are explored to improve the safety and reliability of shut-off valves. Related Articles | Metrics

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Evaluation of Uncertainty in Verification Results of Fei GAO Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save At present, in the process of crude oil transportation, the scraper flowmeter is often used, which is one of the most commonly used measuring instruments for dynamic crude oil measurement, and its measuring performance and accuracy will directly affect the economic interests of both sides of the crude oil trade. This paper introduces the verification principle of the scraper flowmeter, determines the source of the measurement uncertainty according to the theoretical calculation formula of the standard volumetric tube online verification of the scraper flowmeter, calculates the component of the uncertainty, analyzes and evaluates the uncertainty, analyzes the factors affecting the calibration of the scraper flowmeter according to the measurement uncertainty results, and puts forward the corresponding reasonable solutions and suggestions. Related Articles | Metrics

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Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Optimization of Anti Jamming Gas Circuit Design for In-service On-off Valves in Natural Gas Purification Plant Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save In a natural gas purification plant, an in-service reflux on-off valve located at the outlet of an HP Lean Sulfinol Pump has been found unable to be opened while it’s stuck in the closed position under conditions of large dP up & downstream of the valve. To address this issue, a new air supply system suitable for larger dP conditions to prevent valve sticking is proposed as an online upgrade by utilizing conventional general instrument accessories without stripping down the valve body and actuator, featuring lower costs and shorter time occupation. This will enable flexible opening and closing of the valve in larger dP scenarios, making it suitable for a wider range of applications. Related Articles | Metrics

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Application And Analysis Of Safety Instrument System (SIS) In Finished Oil/Chemical Products Tank farm Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Abstract：The storage tank area of a company stores dangerous chemicals such as methanol, gasoline and diesel, which constitutes a major hazard source of grade one and grade two. There is no independent safety instrumented system ( SIS ) in the tank farm, nor is there an emergency cut-off system for storage tanks. After the hazard and operability analysis ( HAZOP ) method and safety integrity rating ( SIL ) grading, measures such as reforming the pneumatic cut-off valve of the storage tank and increasing the on-site emergency stop button were taken, and the liquid level and valve switching signals were introduced into the SIS system to realize the high and low liquid level alarm interlock cutting function of the storage tank. It solves the problem of major safety hazards in the tank area and ensures the smooth operation of the tank area. Related Articles | Metrics

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Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Dynamic risk assessment of storage tank in station based on bow-Bayesian network SHI haotong Chang-Jing LIANGLIANG Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Recurrent Neural Network-based Performance Prediction Model for Compressor Units Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save The operation of compressor units generates a substantial amount of monitoring data, with the monitoring values of key parameters being the primary factors for determining the normal operation of the units. However, at various compressor stations, these data are only stored as backup files for post-incident investigation purposes and are not effectively utilized. In this paper, we propose a compressor unit performance prediction model based on recurrent neural networks. We first discretize the monitoring data values using data nodes to reduce data redundancy. Then, we calculate the correlation coefficients to measure the correlation between different parameters at different time points. By mining neighboring nodes, we obtain a set of temporal neighboring nodes for the key parameters and use it as the training set for the recurrent neural network to predict the values of the key parameters, thus determining the operating status of the units. Experimental validation on the SCADA dataset demonstrates that the proposed model performs well in predicting the values of the outlet temperature. The evaluation metrics, MAE and RMSE, for a typical abnormal event in the outlet temperature are 0.88 and 0.92, respectively. These results further indicate that the proposed model exhibits strong generalization ability and predictive accuracy. Related Articles | Metrics

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Design of control scheme for inner floating roof tank gas recovery system Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Abstract:The waste gas generated by the oil and gas recovery unit of the inner floating roof tank of a petrochemical enterprise is treated by the technology of "exhaust gas reduction of the inner floating roof tank with air bags" developed by Sinopec Dalian Petrochemical Research Institute. The unit mainly includes the oil and gas recovery unit of the inner floating roof tank. The control plan for the emission reduction of exhaust gas from the built-in air bag of the inner floating roof tank was mainly introduced. The automatic control of the large breathing exhaust process, large breathing inhalation process, small breathing exhaust process, and small breathing inhalation process of the inner floating roof tank was carried out by setting up a program. From a safety perspective, the device was designed to ensure safety and stability during operation. Related Articles | Metrics

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Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （1）            Knowledge map    Save Related Articles | Metrics

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Study on soft sensing technology of gas pipeline compressor flow based on random forest Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Abstract: Compressor is the main energy consuming equipment of gas transmission pipeline, and the accuracy of its flow measurement results is directly related to the management level of the whole pipeline line. On the basis of field test experiments, a data-driven soft sensing model based on random forest is constructed, and the hyperparameters that affect the accuracy of the model are optimized by grid search and cross-validation. Finally, the optimal prediction model is constructed, and the prediction results are compared with those of SVM, NB, GS-SVM and other models. The results show that the correlation between fuel gas consumption and atmospheric pressure on compressor flow is small, and its variables should be reduced. When the number of decision tree n is 300 and the number of split features m is 5, the prediction effect is the best. The RMSE and MAPE of the model in this paper are both the smallest, which indicates that the model in this paper has a good regression effect for complex nonlinear data sets such as compressor flow, and has certain advanced and scientific nature. Related Articles | Metrics

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Condition monitoring of instrument and control equipment has an important impact on the long-term development of petrochemical enterprises Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Based on the needs of petrochemical enterprises to build the "industrial Internet + hazardous safety production" technical system and the construction of equipment integrity system, the instrument control status monitoring platform has emerged as The Times require, improving the safety production risk perception ability and the response and disposal ability of instrument control equipment defects, excavating potential equipment hidden dangers, and transforming the maintenance mode of instrument control equipment into a predictive maintenance party after maintenance. This paper introduces the construction and application difficulties of the instrument control condition monitoring platform, and focuses on the overall structure and key functions of the platform. Through the operation results of the instrument control status monitoring platform of an integrated refinery and an oil refinery, it is shown that the platform has automatic analysis functions such as defect identification, fault diagnosis, equipment status KPI and advanced application based on model algorithm, which can directly guide enterprises to carry out operation maintenance, inspection and repair work, and improve production safety of enterprises. Related Articles | Metrics

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Applicability Analysis of Electronic Remote Sensor System (ERS) Differential Pressure Transmitter Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Differential pressure level transmitters are widely used in common instruments for measuring liquid levels in petrochemical processes. There are various forms of differential pressure level transmitters, including intelligent differential pressure level transmitters, remote seal (RS) double flange differential pressure level transmitters, and electronic remote sensor type (ERS) double flange differential pressure level transmitters. This article mainly analyzes the application sites where ERS differential pressure level transmitter is suitable to replace RS differential pressure level transmitter. Through comparative experiments, two types of transmitters are simulated under the same working conditions and their measurement performance is compared. The data shows that ERS differential pressure level transmitter has advantages over RS differential pressure level transmitter in certain working conditions such as long distance, large differential pressure, small static pressure, and large temperature difference. Finally, based on the data analysis results, the applicability range and application suggestions of ERS differential pressure transmitter are proposed. Related Articles | Metrics

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Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Solutions to optimize False Alarms pi yu Automation in Petro-Chemical Industry    2024, 60 (1): 0-0.   Abstract （0）            Knowledge map    Save Abstract: If a mount of false alarms is produced, The normal process operation will be greatly disturbed. Frequent Spurious shutdown will be effected or even danger will occur. The bad economic loss will be involved in. In some cases, false alarms may be developed to potential safety hazard. Elimination of all kinds of false alarms is the basis to proceed the execution of advanced alarm management. The impact Factors to false alarms are completely analyzed. The corresponding solutions and implementation details will be provided including reasonable alarm setting design, Static and dynamic alarm suppression, signal filter and de-bounce function, instrument accuracy and range design. When all false alarms are actually eliminated, the management level of refinery plants will be greatly improved. The intrinsic safety conception shall be actually achieved. Related Articles | Metrics

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Analysis of the influence of oxygen flow temperature and pressure compensation on the chemical efficiency of ethylene oxide unit Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save Oxygen is the main reaction material in ethylene oxide unit, and it is also an important calculation factor involved in the selectivity of ethylene oxide unit, and its measurement accuracy directly affects the judgment of catalyst selectivity. In this paper, two methods of calculating catalyst selectivity in ethylene oxide plant using analytical instrument and ethylene/oxygen mass flow rate were introduced, and the reasons for the large error in calculating catalyst selectivity with the latter were found out. The reasons for the error in the temperature and pressure compensation formula of oxygen flow rate were determined. After correction, the two selectivity calculation methods showed similar amplitude and trend. It is proved that the two methods have good reference significance in calculating catalyst selectivity. Related Articles | Metrics

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Application of OCS in Synthetic Ammonia Urea Production Project Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save Synthetic ammonia and urea are important fertilizers and industrial raw materials with extensive applications in modern agriculture and chemical industry. In traditional ammonia urea production projects, DCS systems based on copper core cables are generally used as signal transmission media. However, the use of copper core cables makes signal interaction between the control system and the device area susceptible to interference from external electrical signals, and the cost of copper core cables is high. This traditional approach will significantly increase the project cost and spare parts cost for users, affecting the rapid delivery of the project. This article combines industrial optical bus technology with synthetic ammonia urea production projects, which can not only solve the problem of interference in copper core cable signal transmission, but also significantly reduce the installation cost of control systems, save time, and improve the reliability and stability of system operation in synthetic ammonia urea production projects. Related Articles | Metrics

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On the Hazards and Governance Measures of Single Point Safety Interlocking Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save Abstract：The interlocking protection system is an important equipment to ensure the smooth operation of the device. Single point interlocking refers to the instrument function where one measuring instrument or a pair of contacts can trigger interlocking action. This article analyzes the main reasons for the serious consequences caused by multiple single point interlocking fault cases. Through induction and summary, it is found that the problems mainly focus on shared instrument pressure points, shared system cards, inadequate instrument maintenance, failure to do seasonal maintenance work, and failure to replace expired equipment according to its service life. And explore and develop single point interlocking governance and rectification plans one by one based on the causes of the case. Through single point interlocking governance, the reliability of the interlocking protection system will be comprehensively improved in terms of source design, compliance rectification, daily maintenance, etc., to ensure the smooth operation of the device. Related Articles | Metrics

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Discussion on Long Cycle Operation of Instrument and Control System for Ethylene Cracking Gas Compressor Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save Related Articles | Metrics

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Analysis and suggestions for unplanned shutdown caused by furnace pressure measurement in heater Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save With the large-scale development of petrochemicals, the application of heater with furnaces as heat sources is becoming increasingly used. This article study and research on the reasons for the frequent abnormal working conditions of "furnace pressure interlocking", and issued some solutions and suggestions from different perspectives to prevent unnecessary spurious trip and unplanned shutdown caused of process unit by furnace pressure Related Articles | Metrics

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Research on the Modbus RTU communication between Honeywell and Hollysys distributed control system Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save PetroChina Jinzhou Petrochemical Company has carried out the work of interconnecting data between various upstream and downstream devices. It requires different brands and models of DCS control systems to communicate with Hollysys MACS 6 control system through Modbus RTU protocol. As the actual work progresses, it is found that only the Honeywell PKS control system could not write data to the Hollysys system. In response to this phenomenon, a deep analysis of the basic principles of Modbus RTU communication protocol was conducted, and a method of studying Modbus RTU communication messages was adopted to analyze the differences between the two systems' messages. By adjusting the configuration of the Honeywell and Hollysys systems, the structure of the messages was made consistent. After connecting the Honeywell and Hollysys systems, it was found that the data from the Honeywell system can be successfully written out, thus solving the last problem in the interconnection project. Related Articles | Metrics

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Research on Electromagnetic compatibility of control system in Petrochemical Plant Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save The electromagnetic compatibility of SH 3092-2013 "Design specification for distributed control system in petrochemical industry" requires that DCS equipment does not cause bad electromagnetic interference in other equipment, nor will it be excessively sensitive to external electromagnetic interference. This article uses the concept of electromagnetic compatibility, sorts out the emission requirements and anti-interference requirements of electromagnetic compatibility of the control system, puts forward the electromagnetic protection measures of the distributed control system, and summarizes the electromagnetic compatibility design points of the petrochemical plant control system, which is conducive to engineering design and application of Electromagnetic Compatibility. Related Articles | Metrics

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Research on the Relationship between the Transient Control Performance of Natural Gas Automatic Distribution System with the Parameters of Connecting Pipeline Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save With the development of automation and intelligent technology, natural gas distributing stations are gradually popularized for automatic control systems. In this article, the types of gas users in a certain natural gas pipeline company are first studied. Three types of classic users are selected, and their data such as gas components, distribution pressure, and flow rate of each type user are collected as the basis of modeling. Furthermore, the mathematical models of the main devices in the automatic control system are analyzed, thus establishing the relationship between the structural parameters of the connection pipeline and the transient control performance indicators of the automatic control system. By comparison, it is found that the diameter and length of the connection pipeline have a significant impact on the transient control performance of the automatic system. There are critical pipe diameter and critical length, before and after which the transient performance indicators of the automatic control system have different trends. Related Articles | Metrics

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Discussion on the Current Status and Development Direction of Fracturing Unit Control Technology Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save The control technology level of the fracturing unit directly determines the quality and efficiency of the fracturing operation. For this purpose, the author conducted research on the technological progress and application status of fracturing unit control systems from mainstream domestic and foreign manufacturers. They compared the level of single machine equipment control and centralized intelligent control of units from various manufacturers, and analyzed the main problems that currently hinder the intelligent development of fracturing unit control systems. The conclusion indicates that there is no significant difference in the control technology of domestic fracturing units compared to similar foreign manufacturers; The overall field is developing towards electrification, hybridization, wireless, visualization, and intelligence. We can start from the aspects of technology, management, and personnel to jointly promote the improvement of China's fracturing unit control technology and meet the needs of unconventional oil and gas high-efficiency and high-quality development. Related Articles | Metrics

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Design and application of a dual robot batching robot system Automation in Petro-Chemical Industry    2024, 60 (5): 0-0.   Abstract （0）            Knowledge map    Save In today's society, the application of robots is gradually moving from experimentation to application, from component based unit applications to systematic applications. This is an inevitable trend in technological development and the inevitable path to achieving Industry 4.0; This project is based on the collection of two or more robots with multiple tasks and systems, combined with technologies such as microcontroller programming and PLC programming, to achieve a robot system where multiple robots cooperate, coordinate, and unify to complete a task; This article discusses in detail the importance, working principle, application fields, and their impact on production efficiency and quality of the dual robot batching system in modern industry. Through in-depth analysis of the system, its broad prospects and potential in future industrial development have been revealed. Related Articles | Metrics