Several development trends of the hottest Petroche

Several major development trends of Petrochemical Automation Technology

Introduction: in recent years, a series of "world-class" refining and chemical integration projects in China's petrochemical industry have been completed and put into operation, such as Shanghai Secco ethylene project, Guangdong Huizhou ethylene project, Yangba integrated ethylene project, Maoming Petrochemical ethylene project, Hainan Shihua oil refining project, Qingdao oil refining project, Fujian Refining and chemical integration project Dushanzi refining and chemical integration project, Huizhou refining project, Tianjin refining and chemical integration project, Zhenhai ethylene project, etc. As a senior expert in the field of Petrochemical Automation who has witnessed the development of China's petrochemical industry for more than 40 years, Huang Buyu commented in detail on several major development trends of Petrochemical Automation Technology in recent years

trend 1: the level of integrated automation system continues to improve

world-class factories need integrated automation systems. For the current large refining and chemical integration enterprises, in order to cope with the global competition, they attach great importance to the construction of enterprise information system, which requires the DCS system to break the previous situation of only single device control forming "information islands", and realize the real centralized control, operation and management of the whole plant through system integration. At the same time, the current large-scale petrochemical enterprises have large-scale production units and synchronous construction, and the scale of control systems is up to tens of thousands of points, involving decentralized control system/fieldbus control system, safety instrument system, fire and gas detection system, compressor control system, rotating equipment monitoring system, equipment package control system, analytical data acquisition system, tank farm data acquisition system, storage and transportation automation system In order to realize the integration of plant wide control systems, such as equipment management system, operation data management system, advanced control, real-time optimization and operation training simulation system, higher requirements are put forward for the integration level of automation systems. Tianjin refining and chemical integration project, which has just been completed and put into commercial operation, includes 10 sets of oil refining units, 9 sets of chemical units, utilities and auxiliary facilities, and off-site projects. The integration scale of automation system reaches about 143900 dcsi/o points and 44300 Sisi/O points. With the in-depth application of computer network technology in automation systems, the era of automatic control systems only as "information islands" has passed, and large-scale and integrated automation systems are the inevitable trend of historical development

trend 2: MAV has become a new mode

mav strategy, that is, to implement the integration strategy of instrument and control system of the whole plant in the mode of main automation system supplier, which is a new automation system construction mode in the petrochemical industry in recent years. The ultimate goal of adopting MAV mode is to enable the owner to obtain an automation system with high cost performance, long life cycle and low comprehensive cost. In this mode, MAV, as the partner of the overall planning and design unit of the project, provides users with the overall scheme and network structure; Hardware/software configuration; Project management and operation procedures; Functional design specifications and standards; Engineering design, configuration, generation and debugging; Third party system integration and commissioning; Operation and maintenance support services. Practice has proved that this mode has many advantages, including on the one hand, it is conducive to the overall coordination of the project, on the other hand, it is conducive to the standardization of various interfaces and man-machine interfaces, so as to realize the synchronization of multiple production devices and integrated automation systems of public works; Prepare functional design specifications to ensure the standardization of integrated automation system; It is conducive to the management of multiple EPC at home and abroad; Ensure high quality and high level of integrated automation system engineering; It is conducive to centralized operation and management. Resources are optimized according to the needs of domestic magnetic materials and other high filling materials, and life cycle costs are reduced. It can meet the challenges and needs of the construction and operation of modern large-scale petrochemical projects

of course, for large-scale petrochemical projects, the choice of MAV is very important. It is a multiple test for suppliers in terms of products, engineering, services and overall coordination ability. At present, MAV in the petrochemical industry is still dominated by foreign well-known enterprises, such as Emerson, Honeywell, Siemens, Yokogawa, ABB, etc. for domestic automation enterprises, they have begun to try this aspect, However, to become a truly competitive MAV, it still needs the accumulation of engineering experience, and there is still a way to go

trend 3: network architecture information security issues

current modern petrochemical enterprises usually adopt erp/mes/pcs three-tier network structure in network architecture. The integration has repeatedly mentioned China's civilization and China's road network structure, prompting us to consider hardware, software and maintenance from the beginning of the plan. With the continuous extension of digital technologies such as intelligent Hart technology, fieldbus technology and wireless technology to the control system and field instruments, the information processed by the data bus will continue to increase. The safe transmission and rational use of information will be an important test for the automatic control system. At the same time, a large number of computers and network technology are used to gradually replace the inherent software and hardware equipment of the automatic control system. How to ensure the safety and reliability of DCS system will be an important topic for engineering companies and manufacturers! At present, the network security problem of petrochemical enterprises has attracted extensive attention of industry experts, studying the security functions and Strategies of network hardware, software, engineering and maintenance, as well as dealing with risks. Facing the information security problems that appear with the application of new network technology, everyone is actively exploring solutions, strengthening management and constantly improving

trend 4: the application of fieldbus technology is advancing

with the continuous development of fieldbus technology, products and application experience, the application of Fieldbus Technology in process industry and manufacturing industry is also constantly expanding. In the field of petrochemical industry, since the beginning of Shanghai Secco ethylene project, which was put into operation in 2005 and how to take a share in China's economic development in the next five years, a series of major industrial projects such as CNOOC Huizhou ethylene project and Fujian Refining and chemical integration project have successfully and on a large scale checked the water supply system of the humidification system, using FF, PROFIBUS and other fieldbus technologies, Fieldbus technology is advancing with the implementation of these large projects. From the perspective of application effect, it can be said that fieldbus technology is feasible to be adopted in large-scale petrochemical projects, which can realize predictive maintenance and remote maintenance. However, at present, there are still problems, including the change of user concept, higher requirements for the technical level of field maintenance personnel, and the technology itself needs to be further improved, which makes the application and development of Fieldbus Technology in petrochemical industry relatively slow