At the Forum on Instrumentation and Green Economy recently held in Beijing, Huang Buyu, Deputy Chairman of Technical Committee of Sinopec Controlled Central Station made a report titled “Status and Development of Integrated Automation System for Petrochemical Industry†and analyzed the challenges faced by the petrochemical industry. .
Huang Buyu pointed out that China's shortage of crude oil resources depends on imported crude oil processing; the contradiction between oil refining and petrochemical raw materials is becoming more and more prominent; crude oil price fluctuations, high production costs, and operational risks; safety, energy saving, emission reduction, and environmental protection standards require strict requirements; Foreign well-known petrochemical companies build factories in China and the market is fiercely competitive. It is becoming more and more urgent to reduce life-cycle costs and improve the level of modern enterprise management.
It is understood that the biggest challenges faced by the global petrochemical industry are the shortage of oil and gas resources, unbalanced supply and demand, rising production costs and the urgent need for industrial integration. As the fastest growing automation technology, information technology, and modern management technology in the world today, it has become a technological means and method that international companies compete for and continuously improve their own competitiveness. With the continuous advancement of petrochemical production technology worldwide, petrochemical companies are moving in the direction of large-scale, integrated, intelligent, and cleaner. The design concept of the traditional petrochemical production process control system has also changed.
Huang Buyu said: "The modernization of petrochemical plants, the level of integrated automation systems continue to increase. From the perspective of factory operations, management, maintenance, requires that the process control system should be open, high reliability, interoperability and easy maintenance. Through the integration of production operation automation, operation management informationization, production management and process control management and control, enterprises can realize intelligent production and management from crude oil selection, procurement, production and processing to the entire process of petroleum and chemical products leaving the factory, making the company's profits maximized. Change.
With DCS, SIS, FGS, CCS, PLC and other control systems and field bus technology, industrial wireless network technology is also mature in the field of process automation applications, will greatly improve the level of petrochemical production of intelligent.
Create "smart petrochemical factory"
Compared with foreign leading petrochemical enterprises, Sinopec enterprises are still in the initial stage of information construction. To stand out from the fierce international competition, we must have a global perspective and innovation in China, and actively develop advanced information technologies such as digital oil fields, supply chain integration, the Internet of Things, and cloud computing to drive industrialization through informationization. Industrialization promotes informationization.
In order to occupy the commanding heights, many countries have proposed cross-century research plans. For example, the U.S. government put forward plans such as "National Key Technology of the United States" and "Advanced Manufacturing Technology Plan"; the European Community's "Eureka Plan" (EURE-KA) and the "Information Technology Research and Development Strategic Plan (ESPRIT)"; Japan's "Intelligent Manufacturing System Plan"; South Korea's "Advanced National Advanced Technology Program".
By analyzing the development trend of international economy and the development trend of information technology, Lin Rong, deputy chief engineer of China Petrochemical Engineering Construction Co., put forward the development of intelligent petrochemical production technology and construction of a “smart petrochemical plantâ€. He said: "Smart Petrochemical Factory" is a comprehensive technology that combines automation technology, information technology and modern management technology to enhance the traditional petrochemical industry. It integrates optimization of petrochemical business planning, optimization of plans, optimization of scheduling, and optimization of online closed-loop control. Comprehensive technology. At present, all countries in the world have attached great importance to the development of this technology and have realized the integration of design, production management and operation.
It is reported that the intelligent factory is the concept and solution proposed by ASPENTEC in the United States in the 1990s. Then Honeywell, Emerson, Invensys and other companies successively proposed solutions such as "Integrated Business Solutions", "Digital Factory", "Smart Factory", and they were successfully applied to large-scale projects.
Petrochemical intelligent production technology
Intelligent production technology is the result of continuous absorption of machinery, electrical, electronics, information (computers, networks, communications, cybernetics, artificial intelligence, etc.), energy, and modern systems management in the manufacturing industry, and it is being integrated into product development. The overall design, manufacturing, testing, sales, use, service, and even recycling process to achieve high-quality, high-efficiency, low-consumption, clean, agile, flexible production, and to increase the adaptability and competitiveness of market dynamics .
Its characteristics are relying on digitalization and networking to achieve centralized planning, monitoring, management, and coordination in all aspects of the production process and business process. Relying on modeling and informatization, the production process and business process and strategic decisions are simulated and adjusted.
In the next few years, the focus of intelligent manufacturing technology in the petrochemical industry will be the digitization of inspection technology, the intelligentization of control technology, the integration of production process control and operation management, and the integration of internal and external supply chain management optimization.
Experts predict that the petrochemical intelligent production technology will show the following trends in the next ten years:
Fully meet the needs of petrochemical companies in the 21st century for large-scale, integrated, intelligent, cleanliness, fully embodying the concepts of safety, health, environmental protection, and recycling economy; integration of production process automation with enterprise production, business management, and integration The digitization and networking of production process control equipment; the flexibility, agility, and virtualization of all aspects of design, production, and business management; digitization, automation, and networking of scientific research, design, engineering, production, operations, and decision-making; The network and globalization of the company's collaborative business with suppliers, customers, and partners.
The auger bit adds a long deep spiral flute for effective chip removal.
Two styles of auger bit are commonly used in hand braces: the Jennings or Jennings-pattern bit has a self-feeding screw tip, two spurs and two radial cutting edges. This bit has a double flute starting from the cutting edges, and extending several inches up the shank of the bit, for waste removal.
The Irwin or solid-center auger bit is similar, the only difference being that one of the cutting edges has only a "vestigal flute" supporting it, which extends only about 1â„2 in (13 mm) up the shank before ending.
The diameter of auger bits for hand braces is commonly expressed by a single number, indicating the size in 16ths of an inch. For example, #4 is 4/16 or 1/4 in (6 mm), #6 is 6/16 or 3/8 in (9 mm), #9 is 9/16 in (14 mm), and #16 is 16/16 or 1 in (25 mm). Sets commonly consist of #4-16 or #4-10 bits.
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