Automation in Petro-Chemical Industry

Analysis and Research on Engineering Design Patterns in the Digital Background

2024, 60(3): 0-0.

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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.

Application of Optical Bus Control System in Polysilicon Plant

2024, 60(3): 0-0.

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With the country pays more attention to green photovoltaic power, polysilicon projects have developed rapidly and prospered, and the scale of production is increasing. It puts forward higher requirements for the control system. In this paper, based on the advantages of optical bus control technology and the characteristics of polysilicon project control system, the specific control solution of signal system, power supply system and grounding system is proposed, thereby simplify engineering design, shorten project design and construction period, effectively reduce project construction costs, and improve the level of automation control.

A Method for Automatic Integration of Petroleum Exploration and Development Data Based on Fuzzy Logic Method

2024, 60(3): 0-0.

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Research and Application of Key Parameter Prediction and Warning and Safety Navigation System for Oil and Gas Stations

2024, 60(3): 0-0.

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I n order to ensure the stability of the oilfield gathering and transportation station process, predict and solve possible future process failures in advance, a predictive warning and safety navigation system was developed based on the LSTM algorithm. The design scheme of the system was introduced, the process flow of the oil and gas station was analyzed, the selection of key production parameters, the establishment of prediction and warning models, and the process safety navigation expert logic library were introduced. The on-site application showed that the system can achieve prediction and warning of key production parameters in the oil and gas station, provide the future development trend of key production parameters in advance, and address potential exceeding threshold faults of key parameters in the future, The system will automatically provide expert safety guidance strategies to prevent production processes from entering a faulty state.

调节盘阀在多晶硅下料中的应用

2024, 60(3): 0-0.

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Improvement Method and Research on Accurate Measurement of Air Flow

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Problems and Improvement of Relay Protection for Polymerizer Motor in Polypropylene Plant

2024, 60(3): 0-0.

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ABSTRACT：In response to the problem that the low-voltage and overcurrent protection settings of the polymerize motor cannot meet the requirements for rapid recovery of production in the polypropylene plant when a low-voltage accident occurs in the power grid, corresponding improvement measures are proposed and implemented. By improving the low-voltage restart function of the motor, it ensures that the plant can quickly resume production after a low-voltage accident in the power grid, greatly reducing the losses caused by the accident; By modifying the setting value of the overcurrent protection curve, the polymerize motor motor can start normally under heavy load, ensuring the safe and stable production of the plant.

Discussion on the Application of UAV Inspection System in Puguang Gas Field

2024, 60(3): 0-0.

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The gathering and transportation pipeline network of Puguang gas field is widely distributed, with a challenging geographical environment and a large inspection workload, posing significant difficulties for manual inspections. To enhance the emergency response capability of Puguang gas field, we propose an intelligent inspection scheme that utilizes unmanned aerial vehicles (UAVs) to replace part of the manual inspection process. This paper introduces the composition of the UAV inspection system and provides technical parameters and functions of its main equipment such as flight platform, transmission link, handheld remote control system, mobile UAV airport, self-service airport for UAVs and ground station operating system. By implementing this UAV inspection system in Puguang gas field management practices, it can improve digitalization levels while enabling timely monitoring of geological disasters in an effective manner.

Construction and application of intelligent early-warning module in fracturing engineering

2024, 60(3): 0-0.

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The new generation of information technology has promoted the upgrading of all sectors of the economy and society from digitalization and networking to intelligence. Focusing on efficient exploration and development and intelligent oil and gas field construction, based on professional fracturing data such as normal construction feature set, abnormal data knowledge base and standard procedures, and using big data monitoring technology and early warning calculation and analysis model as methods, the early warning and program optimization of fracturing engineering are initially realized, and a data-driven production stimulation model is formed. The demonstration and application in Fuling area has achieved good results, which provides reference for the digitalization of domestic fracturing production.

Pipeline leakage signal denoising method based on IWOA-VMD algorithm

2024, 60(3): 0-0.

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Abstract: To solve the problem that the pipeline leakage signal is submerged in the background noise, which leads to the difficulty of location detection. By improving IWOA algorithm to optimize the combination of decomposition scale and penalty factor in VMD algorithm, and by calculating the Euclidian distance between the probability density value of intrinsic mode component and the probability density value of the original signal, the boundary point between the effective signal and the noise signal is determined, and then the signal is reconstructed. The results show that not only the low-frequency 1Hz harmonic signal is detected, but also the frequency and amplitude of the other frequency harmonic signals are more accurate. The field leakage signal is simulated by oil discharge experiment. Compared with WOA-VMD, PSO-VMD and GA-VMD, the reconstructed signal of IWOA-VMD algorithm has larger signal-to-noise ratio and smaller mean square error, and has stronger adaptability to the detection and location of slow leakage signal. The research results can provide theoretical basis for the improvement of pipeline integrity management level.

Application of Virtual Plant and OTS for Process Industry

2024, 60(3): 0-0.

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Digital twin and virtual simulation are important technologies for industrial digitization. Taking a typical chemical separation unit in the process industry as an example, this article analyzes and studies the virtual plant and operator training system based on SIMIT simulation platform and PCS 7 process control system, introduces the composition of virtual plant and OTS, as well as the knowledge required for developing and using OTS, and elaborates on the basic content of the design, development, and operation of virtual plant and OTS. Process industrial enterprises improve construction and production efficiency, ensure stable and safe operation of process plants by utilizing virtual plant and digital twin technology.

Application of Control System Operation Station Software Virtualization Deployment Based on Cloud Platform?

2024, 60(3): 0-0.

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With the gradual application of Internet technology and cloud computing in all kinds of information software, industry control industry is also facing the pressure of efficiency of traditional solutions. It will be particularly urgent to use cloud platform technology to meet different user needs and enhance the competitiveness of the industry, especially under the influence of the turbulent international environment, the localization of industry control industry is imminent, and the selection of industrial control industry in the localized operating system and hardware models is imminent. Cloud Platform provides a solution, which satisfies the convenient deployment of users, but also has natural advantages in the integration and distribution of hardware and software resources, maintenance, remote management, etc. This paper puts forward a set of solutions for platform management in the field of industrial control, The results show that the efficiency of software and hardware and user experience can be improved by referencing the management mode of the platform, and the service promotion of related solutions can be carried out.

Research on on-line diagnosis technology of ultrasonic flowmeter state based on cloud model

2024, 60(3): 0-0.

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Abstract: In order to realize remote online diagnosis of ultrasonic flow status, based on literature research and metrology principles, the ultrasonic flowmeter status evaluation index system was established from three aspects, namely sound velocity characteristics, signal characteristics and flow characteristics. The membership degree of a single indicator under different status levels was obtained by using cloud model, and the comprehensive membership degree was obtained by combining weight weighting. Then realize the real-time evaluation of flowmeter status level. The results show that the soft coefficient method reconcilates the main and objective weight results, and the sound velocity deviation, profile coefficient and maximum sound velocity difference have greater influence on the ultrasonic flowmeter state, while the disturbance value and signal quality have less influence. The model in this paper can distinguish the different state levels of the flowmeter effectively, and the early warning time is much earlier than that of the sound velocity verification method. The research results can provide theoretical reference for early diagnosis and preventive maintenance of flowmeter.

Design of Oil and Gas Reservoir Information Storage System Based on Neural Network Information Fusion

2024, 60(3): 0-0.

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Design and application of laser scanning gas combustible gas detector in LNG receiving terminal

2024, 60(3): 0-0.

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There are risks of natural gas leakage, fire and explosion in LNG receiving station. The principles, advantages and disadvantages of several common combustible gas detectors are analyzed, the principle and composition of laser scanning gas combustible gas detectors are introduced, and the basic requirements of type selection and design are put forward. Taking the LNG receiving station of a certain project as an example, by analyzing the problems existing in the original arrangement of the combustible gas detector in the process of operation, the optimized scheme of adding the laser scanning gas combustible gas detector is given.The practical application shows that as a supplementary technical means of on-site combustible gas detection, the detection results of various parameters meet the design requirements, and have the advantages of high accuracy, high sensitivity and high safety, so it has a good application prospect in the field of gas leakage detection in LNG receiving station.

Design and Implementation of a Multi-parameter Online Monitoring System for Ion in Condensed Water from Refinery

2024, 60(3): 0-0.

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According to the monitoring requirements for corrosive ions in condensed water from refinery, combined with the measurement principle of ion selective electrode, a multi-parameter online monitoring system for ion was designed.The system was designed intensively and automatically to achieve the design goal of measuring the concentration of corrosive ions automatically, stably, and accurately. Refer to the application requirements, the performance of system is tested. The results show that system has high measurement accuracy and good measurement stability. The system can provide guidance of the anti-corrosion management for reducing the risk of equipment corrosion failure. The system has high popularization and application value．

Application of passive Fourier infrared spectroscopy telemetry technology in refinery and chemical enterprises

2024, 60(3): 0-0.

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Passive remote sensing Fourier-transform infrared spectroscopy （FTIR）technology is an advanced non-contact large-scale gas monitoring technology. Its application in petrochemical parks can help achieve three-dimensional monitoring of dangerous gases, improve the company's risk management and environmental supervision capabilities, and help achieve dual-carbon compliance. This article introduces the passive remote sensing FTIR technology and explains its application in gas monitoring in the plant area of a certain refining and chemical enterprise . It is of significance to promote the development and application of dangerous gas leak detection technology in the domestic petrochemical industry.

Optimisation design and application of ball valve For Ebullated-Bed Hydrogenation Unit

2024, 60(3): 0-0.

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This article introduces the application conditions and technical requirements of ball valves used in Ebullated-bed hydrogenation Unit，By comprehensively using theoretical analysis、finite element software、and wear resistance tests，the valve was optimized and designed.At the same time,the application situation of the valve was analyzed.

Design for control room in petrochemical industry

2024, 60(3): 0-0.

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