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The pace of China's self-control technology innovation is accelerated. According to the relevant experts in the instrument and meter industry, as the nerve center of major technical equipment, the automatic control system plays a vital role in the safe, reliable and efficient operation of major equipment such as metallurgy, electric power and petrochemicals. It is imaginatively referred to as the "brain" of major equipment. DCS is the most commonly used control system in major technical equipment.
In recent years, domestic DCS systems have developed rapidly. For example, domestic DCS systems in the power industry of 300MW and below have been widely used, and the level is close to or reach the international similar products. In the petrochemical industry, domestic DCS systems have also entered large and medium-sized projects. However, the high-end automation control system required by the modern industrial equipment with high parameters, large capacity and complicated working conditions still has an absolute market share by foreign companies. Therefore, the major engineering automation control system has been listed as one of the key points of the national revitalization equipment manufacturing industry.
In order to thoroughly implement the scientific development concept and the “Several Opinions of the State Council on Accelerating the Revitalization of Equipment Manufacturing Industryâ€, encourage independent innovation and promote the domestic DCS system to be promoted and used in large-scale thermal power units in the power industry as soon as possible. In April 2006, Guodian Dalian Zhuanghe Power Plant The 2×600MW supercritical unit domestic automation control system was approved by the National Development and Reform Commission as the first national technological progress demonstration project to implement the “Several Opinions of the State Council on Accelerating the Revitalization of Equipment Manufacturing Industryâ€, which was undertaken by Beijing Guodian Zhishen Control Technology Co., Ltd. On August 6th and November 5th of this year, the No.1 and No.2 units of Zhuanghe Power Plant successfully passed the 168-hour full-load operation assessment, marking the successful completion of this national technological progress demonstration project. This is also the first successful application of the domestic automation control system on the 600MW supercritical unit. The complete system autonomy rate exceeds 90%.
Wu Quan, the general manager of Guodian Zhuanghe Power Plant, as the user side, admits that they have experienced a process of understanding from worry, reassurance, and satisfaction to the domestic automation control system. At present, the unit is stable in operation, the control system is reliable in operation, convenient in operation and maintenance, and the performance indicators have completely met or exceeded the standards of the state and the power industry, which makes him feel the improvement and maturity of the domestic automation field. In view of the successful application of domestic control systems on 600MW supercritical units, they will continue to adopt domestically produced automatic control systems in the second and third phases of construction projects. Experts in the industry believe that after the localization of the 600MW supercritical unit automation control system, it can not only improve the level of autonomy of major equipment automatic control systems in China, but also meet the requirements of high automation and intelligence of key construction engineering and technical equipment, and can greatly reduce the investment and operation of engineering construction. Maintenance costs. The investment in construction of domestic automation control system equipment is about 30% lower than that of imported equipment. Through the statistics of the automated control system that has been running, the spare parts cost of domestic equipment is only one-tenth of the imported equipment, regardless of the country, industry, The user or the company's own benefits will be very obvious.
The domestic automation control system will go up again with the commissioning of “Guodian Dalian Zhuanghe Power Plant 600MW Supercritical Unit Domestic Automation Control Systemâ€, the first (set) domestic million kilowatt ultra-supercritical unit automation control system demonstration project—“ The domestic automation control system project of 1000MW ultra-supercritical unit of Jiangsu Jianbi Power Plant was also launched at the same time, and was still undertaken by Beijing Guodian Zhishen Control Technology Co., Ltd. It marks the world's highest level of thermal power generating units - the million kilowatt ultra-supercritical units will soon be installed on the "Chinese brain", the domestic automation control system will take a new level.
It is understood that the million kilowatt ultra-supercritical coal-fired generating unit is the development direction of coal-fired generating units in the world. It has the characteristics of high technical content, low coal consumption, high thermal efficiency, good reliability and environmental protection performance, which is conducive to upgrading the power industry in China. The overall technical level, but the automation control system is also the most complicated.
Pan Gang, general manager of Beijing Guodian Zhishen Control Technology Co., Ltd. is full of confidence in completing the project. He said that as one of the major suppliers of domestic automation control system products, Beijing Guodian Zhishen has long been concentrating on the world's leading automation control technology, in the National Development and Reform Commission "supercritical thermal power generating unit integrated automation control system high-tech industrialization demonstration project", Under the support and support of the “Distributed Control System Localization Project†and the National Technological Progress Demonstration Project, we have gone through many independent innovation roads that have created many domestic first and domestic first successful applications, and accumulated rich application experience. The brand products with real independent intellectual property rights have fully proved the reliability through the actual operation of more than 500 sets of domestically produced automatic control systems, forming a unique independent innovation path of Guodian Zhishen Company. In addition, Beijing Guodian Zhishen has accumulated a certain amount of engineering experience in large-scale subcritical, supercritical and ultra-supercritical unit automation control through a large number of engineering practices.
In order to ensure the successful application of the independent intellectual property automation control system products on the 1000MW ultra-supercritical unit, the company has established an organization of management, R&D, testing, manufacturing, engineering, service and consulting with leaders, backbones and well-known domestic experts. The security system has established a technical support system for the development of the automation control system development laboratory, testing laboratory, remote diagnostic laboratory, 1000MW unit full simulation test laboratory. At the beginning of this year, under the auspices of China Guodian Corporation, a “Major Research Group on the Localization of Automatic Control System for Million Kilowatt Ultra-Supercritical Units†was established. They will promote the autonomy of China's large-scale equipment automation control system with practical actions.
Equipment autonomy needs application departments to participate in supporting the National Development and Reform Commission deputy director Zhang Guobao said that in recent years, the National Development and Reform Commission in accordance with the unified arrangements of the Party Central Committee and the State Council, with the key equipment urgently needed for the construction of national key projects as a breakthrough, solidly promote the major equipment autonomy work I have achieved great results and accumulated some good practices and useful experiences. Zhuanghe Power Plant's domestic automation control system project is the first national technological progress demonstration project approved by the National Development and Reform Commission to use the first domestically produced (set) major technical equipment. Its success has realized the dreams of several generations of automation people.
Some industry experts pointed out that in order to promote the application of domestic DCS systems in 600MW supercritical and above units, and even in large petrochemical and metallurgical engineering fields, in addition to domestic enterprises to continue to improve the system's high reliability, high performance, high applicability, the largest The difficulty is that domestic companies lack the performance of major equipment and large-scale projects, and the credibility is lower than that of foreign companies. Due to the huge role played by the DCS system, once the problem occurs, the entire equipment will be discontinued or an accident will occur, so the user has high requirements for the performance of the manufacturing enterprise.
Zhang Guobao emphasized that revitalizing the equipment manufacturing industry is a long-term and arduous task. It requires the cooperation of various departments and requires the participation of relevant associations and research institutes. It also requires close cooperation and mutual support between equipment manufacturing enterprises and application departments. In response to the advancement of major equipment autonomy, he also put forward three points:
First, the autonomy of major technological equipment must be driven by the needs of the domestic market. China's equipment market has a large demand, and it is entirely possible to achieve equipment autonomy through independent research and development or introduction and digestion to absorb foreign technology. Organizing the implementation of key technology and equipment autonomy is not only an effective way to revitalize the equipment manufacturing industry, but also an objective requirement to reduce the cost of engineering construction, operation and maintenance.
Second, the implementation of major technological equipment autonomy, we must unswervingly rely on the national key engineering organizations to develop major technical equipment. When the state approves or approves key construction projects, it must arrange a number of major technical equipment supporting projects in a targeted manner to promote the development of major technical equipment and key products for national key development.
Third, the autonomy of major technical equipment requires the active participation and support of the application department. Major technical equipment is technically difficult and has a long cycle. It requires a lot of research and experimentation. It must be verified and perfected, and it is inseparable from the active participation and support of the application department. However, some user companies are still lacking confidence in domestically produced equipment, and some are still keen on repeated introductions and lack of enthusiasm for adopting independent products. In particular, the market access for the first (set) major equipment products for independent innovation is difficult to break through. To this end, the National Development and Reform Commission and the relevant departments are studying and formulating relevant policies to encourage the ordering and use of the first (set) of major technical equipment, and determine the major technical equipment for the national key projects for ordering and using the first (set) of domestically produced major technical equipment. Demonstration (test) projects, with certain policy support in project approval or approval, credit, import and export equipment tax reduction, equipment depreciation, etc.
Domestic automation control system has achieved a major breakthrough
“Guangzhou Zhuanghe Power Plant 600MW supercritical unit domestic automation control system put into operation†and “Jiangsu Jianbi 1000MW ultra-supercritical unit domestic automation control system project cooperation agreement signing ceremony†ceremony was held recently in the Great Hall of the People in Beijing, which marked the domestic automation control The application of the system on large thermal power generating units has achieved a major breakthrough and will move to a higher level. Zhang Guobao, deputy director of the National Development and Reform Commission, who attended the ceremony, said that revitalizing the equipment manufacturing industry is a long-term and arduous task that requires the cooperation of various departments, especially the support of users. In view of the fact that the market access for the first (set) major equipment products for independent innovation is difficult to break through, he also revealed that the NDRC is working with relevant departments to study and formulate support policies to encourage the ordering and use of the first (set) of major technical equipment.