This is industrial gas turbine but the first stage blade technology is more or less the same via Adam Wang
China achieved its first self-casting of large-scale first-class stator blades of heavy-duty gas turbines of 300 MW class
2018-12-26 08:30:02 Source: Technology Daily
According to the Science and Technology Daily reported on December 26, China's first self-contained 300 MW class F heavy-duty gas turbine turbine first-stage vane castings passed the appraisal on the 25th. This is the first important breakthrough made by China in the core components of the heavy-duty gas turbine hot end, and it is also the most important milestone achievement of the national science and technology major project “Aero Engine and Gas Turbine”.
According to the State Power Investment Group Co., Ltd. (hereinafter referred to as the National Power Investment), the gas turbine, which is known as the “crown pearl of the equipment manufacturing industry”, has a history of 50 years in China, but before that China only had heavy-duty parts for heavy-duty gas turbines. Manufacturing and assembly capacity, has not yet mastered the core technology of hot-end component design and manufacturing, and has no independent research and development capabilities. Turbine first stage vane is a typical hot end part of heavy-duty gas turbines, and its core manufacturing technology has been absolutely blocked abroad.
300MW heavy-duty gas turbine technology verification machine CGT-60F gas turbine full three-dimensional composite tilting turbine first-stage static leaf (text irrelevant) Image from Tsinghua Holdings
Thirteen experts from the "two machines" special expert advisory committee, three major powers, Beijing University of Science and Technology, SINOMACH, and Fushun Special Steel agreed that the China National Electric Power Investment Co., Ltd. will jointly re-ignite the Chinese Academy of Sciences, the Institute of Metals of the Chinese Academy of Sciences, and Jiangsu Yongsheng. The research has not only delivered a set of qualified quality blades, but also delivered a set of curing process system and quality assurance system, laying a good foundation for turbine blade shaping design, and creating a number of records: the first domestically designed heavy-duty gas turbine large size First-class static leaf; the first domestic first-stage static leaf mother alloy with complete independent intellectual property rights, which has overcome the pure smelting technology; the first domestic self-casting heavy-duty gas turbine large-size first-class vane, which has overcome the precision of large-sized complex blades. Casting technology.
Expert Advisory Committee Picture from National Power Investment
It is reported that the "two-machine" special project was officially launched in 2015, which is the latest in the national science and technology major project; in 2016, it was listed as the first of the 100 major projects by the national "13th Five-Year Plan". China's joint re-ignition is the main body of the "two-machine" special medium and heavy-duty gas turbines.
Background information
At present, only a few countries in the world, such as the United States, Britain, Russia, Germany, France and Japan, have the ability to independently develop advanced gas turbines. These countries have developed gas turbines of different power grades ranging from tens of kilowatts to hundreds of thousands of kilowatts by means of technological advantages and comprehensive national strength, and they are widely used in the military and civilian fields. The gas turbine is mainly developed and applied by the development path of “light gas turbine developed by mature aviation engine and developed by heavy-duty gas turbine transplanted aero engine technology”.
Gas turbines belong to the fields of technology, capital and talents, and are strategic industries with long development cycle and long life cycle. For a long time, the developed countries in the world have always invested in gas turbines as a strategic industry, investing heavily in the development and development of new gas turbine products and technologies, improving and improving the performance of gas turbines, and greatly promoting the development of the gas turbine industry. In order to maintain their gas turbine technology advantages and always lead in the market competition, western developed countries have formulated special development plans for gas turbines, such as the US ATS plan (Advanced Turbine System Plan) and the CAGT Plan (Joint Cycle Gas Turbine Plan). EC's EC-ATS plan, Japan's "new daylight" plan and "coal gasification combined cycle power system". The implementation of these plans has greatly promoted the research and application of advanced technologies for gas turbines, and has reserved technology for the development of new gas turbines, which has played a decisive role in maintaining the world's leading position and advantages.
In the field of heavy-duty gas turbines, from 2001 to 2007, China introduced more than 50 sets of F/E-class heavy-duty gas turbines of GE, MHI and Siemens with a total of 20 million kilowatts in three ways of “bundling and bidding, market-changing technology”. The four joint productions of -GE, Dongqi-MHI, SAIC-Siemens and Nanqi-GE are domestically produced. The current localization rate is nearly 70%. The foreign party insists on not transferring any design technology and hot-end parts manufacturing and control of gas turbines. System technology makes it less likely to transfer any technology of advanced (G/H) gas turbines. In the industrial chain of heavy-duty gas turbines, our manufacturing process lacks independent research and development capabilities. (Source: Civil Aviation Website)
