Automation in Petro-Chemical Industry

Design on the Heat Source System of 6th Operation Platform Shengli Oilfield

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

The 6th operation platform f shengli oilfield is designed as a jack-up workover platform and it needs heat source system for heating and heat preservation.The paper compared parameters of different heating mediums and finally chose the steam system as the heat source system. Then analysis the main component of the steam system, and made calculations, analysis and descriptions of the boiler, water treatment system, depressurization system, steam trap set and condensate system to finish the design of the heat source system.

The Design of Emergency Isolation Shut Down Valve for Fire Protection in Refinery

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

The Design of Emergency Isolation Shut Down Valve for Fire Protection in Refinery

The length-calculation and Selection of Instrument Cable

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

The load capacity of the instrument signal circuit is analyzed, and then the maximal cable length is calculated according to the load limitation of several typical two-wire instrument in this paper. By the contrast, the maximal laying length is calculated according to the design code, and the largest laying length with different power instruments is draw. For intrinsically safe circuit, cable maximal laying length is calculated according to the two formulas of intrinsically safe circuit, finally, the selection step of instrument signal cable is summarized.

Research of control method for steam balance in fertilizer plant

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

The steps of establing steam balance is introduced briefly. And The control methods of temperature and pressure reducing, vent valve for steam balance are researched. Base on a project, The acutal applications show its feasiblity and availability, it will provide references for choosing reliable control method for the similar fertilizer plants.

MCP-PID Control of Main Stream Temperature Control System

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

Modeling of Soft Measurement for Calorific Value Based on Support Vector Machine

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

For the need of quick and accurate calorific value of fuel gas for feedforward controller to control the outlet temperature of cracking furnace, an approach for soft-sensing model of fuel gas calorificvalue based on support vector machine is proposed. The method detemines model structure by svm, then the application of cross-validation method to acquire the optimal parametersthe of the model. The factors that influence calorific value of fuel gas of cracking furnace are analyzed, and the soft sensing model of calorific values of fuel gas of the cracker system is established using the SVM algorithm. the simulation experiment of calorific value data of cracking fuel gas are carried out based on the proposed method. The simulation results show that this approach is effective. it can accurately predict calorific value and has higher prediction accuracy ,therefore, it can be used for modeling of soft measurement for calorific values of fuel gas system.

Based on RFID technology of oil and water wells data collection and inspection systems

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

In this paper, an information collection and inspection of oil and water wells system based on RFID (Radio Frequency Identification) technology is developed. Instrumentation based on radio frequency identification sensors, PDA (personal digital assistant) with RFID module and the upper computer system based on ASP.NET server technology are combined in the system organically. RFID technology, AJAX asynchronous communication technology, GPRS technology and TCP/IP remote data communication technology are used to implement the collection, storage and post-back of the related data information in the process of checking the oil and water wells and solve the problems that the inspection personnel are difficult to reach the position and the inspection data cannot be uploaded in real-time. Combined with GIS technology, real-time monitoring of inspection lines can be realized by the upper computer. The system is provided with the practical significance of improving the efficiency of inspection personnel's work.

Oil Field Problem Wells Management System Based on Workflow Technology

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

The oil field problem wells management system based on workflow technology is designed, the whole design and the related function modules of the system are given. The approval plans of problem wells are reported by using the workflow engine technology, in accordance with the business process, the workflow drive model is established and the business flow is realized. Combining with C # language and using ADO.NET and multiple data fusion technology as the core, the data entry, processing query and export printing functions are realized. By using the complicated SQL statements and temporary table, the incidence rate of problems statistics is generated. A graph visual representation of data is provided by ExtJS technology and GridView with the user-defined irregular header. According to the direction and progress of the business flow, the overrun and unreviewed problem wells are reminded, the personnel information and authority are set and the personalization of the process is implemented. As is shown in actual application, the integration, sharing and display of the information are realized, the business process is optimized and the work efficiency is improved in the system.

Design of oil and gas pipeline construction information system based on the integrated management

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

Integrated management of oil and gas pipeline is based on the data numerous of which are produced during the construction period. In order to establish an integrated management database timely and accurately, the idea of integrated management should be implemented during the pipeline construction by utilizing the information system which can also provide construction data to support the scheduling decisions. This paper designs the data type, overall structure and basic functions of a pipeline construction information system based on the integrated management. Preliminary achievement is obtained by the application of this system.

The countermeasure for less straight pipe of flowmeter

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

There’re about 100 type of flowmeter in use. In these wide range of flowmeter which works in different principle, there’re specific need for the straight pipe requirements, exclude volumetric flowmeter and Coriolis mass flowmeter. Different flowmeter need different straight pipe length. Less straight pipe results in more uncertainty of measurement, while fluid passes elbow or valve, velocity distribution distorts, so that the actual Discharge coefficient is diffent from the calibration data. In variety of countermeasures, detour is a easy way. We could lower the accuracy in process control and normal monitor as well. It’s also useful that chose a good position to install flowmeter, or install a flow regulator. Evaluate the impact of less straight pipe is more accurate but more expensive.

Design control valve flow characteristic which are specific to your applications

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

The inherent flow characteristic is changed when used in real process, and the properties of the control system may be pool in stability. The methods of design the control valve installed flow characteristic according the controlled process and design the inherent flow characteristic according the pressure drop ratio and installed flow characteristic are discussed in the paper. It can effectively improve the control system stability and variability.

ELL outside the measured level gauge on the practical application of hydrofluoric acid tank

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

Settings of Safety Instrumented System Sensors

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

this article simply discuss the 2oo3 logic which participate in safety instrumented system and meanwhile for the set of the sensors as the same controlled variable in the process control this article propose out two programs and finally these two programs are analyzed and compared in the article.

abcddd

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

aeeeefeaf

The Discussion Of Increasing Speed Of Truck Loading In LNG Terminal

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

Take the actual operation of the LNG truck loading skid in a LNG terminal for example. Preparation of the truck loading, loading process and closing process were analyzed and summarized. The corresponding optimization measures were put forward and truck loading speed were effectively increased. Finally, put forward constantly increasing measures which will provide valuable reference for design and operation of such systems.

Fault analysis of ball valve with solid particle medium and the solutions

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

In the Shell and Texaco Process, the hard-alloy-sealing ball valves used for solid particle always get inner leakage, jam and other problems. In the paper, the problems are analyzed, and the ball valve structure is optimized. The optimized ball valves are of wear–resistance, heat-resistance, and erosion-resistance and have longer life when used in the coal powder, coal slag and other solid particle medium.

Operation Data System and Intellectual Management in Ethylene Plant

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

In many ethylene plants, ubiquitous information awareness and acquisition terminals collect huge production data. In order to meet more and more requirements of intellectualness and digitization for enterprise information management, let the enterprise production management departments make decision based on more information data, operation data system (abbreviated ODS) become the foundation for total ethylene plant to realize the digitization, informationization, intellectual management. This paper describes the principle, function structure, network structure, and shows ODS application in intellectual management of ethylene plant.

Integrated Surveillance System in Gasoline Stations

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

Analyzed the refined oil sales enterprises characteristics and development trends of gas station management, effective integration of the gas stations of the existing liquid level meter, refueling card, video monitoring and intelligent analysis, on-line monitoring, zero tube gas collection management, logistics distribution system, based on comprehensive monitoring stations in the automatic data collection and analysis of data platform, realize information sharing, multi-dimensional information, reduce human intervention, real-time monitoring stations of various business situation, reduce the staff labor intensity, improve management efficiency, strong support for the gas station business requirements and regulatory requirements.

Discussion on Design of Analysis System in the Coal Gasifier

2014, 50(5): 0-0.

Asbtract ( )

Related Articles | Metrics

This paper introduces the design of online analysis system of coal gasification plant selection points, according to different process detection requirements to choose the appropriate analysis instrument. In order to make the readers to better understand the analysis system, the sampling probe, sample pretreatment and the structure, principle and application of on-line gas chromatograph has also done a brief introduction.

Table of Content