1400℃! Recently, the independent heavy-duty gas turbine research and development project has made a major breakthrough. The key component of the 300-megawatt heavy-duty gas turbine, the turbine blade, has passed many tests and was initially successful.
In June 2021, China Reign and Jiangsu Yonghan signed a cooperation project to fully overcome the manufacturing technology of key components at the hot end of gas turbines and promote the solution of the “stuck neck” problem. As a well-known domestic R&D and manufacturing enterprise of special alloy materials, Jiangsu Yonghan has long been committed to the precision casting of nickel-based, cobalt-based and other high-temperature alloy hot-end components, and has formed the whole process of production and quality from model, design to product in the field of precision casting. Control system, products are exported to the United States, Italy and other places, with 16 patents for various inventions.
According to the key component supply contract signed with China Reburning, Su Yonghan is mainly involved in the development of the turbine blade, the key component of the 300-megawatt heavy-duty gas turbine. There is a little deformation, which puts extreme demands on blade strength, temperature, aerodynamics, cooling, structure, etc.
In the critical stage of full-scale sprint component trial production in August, in order not to affect the R&D process, Jiangsu Yonghan invited five quality experts from China Reign to “close” the R&D team together with the R&D team. In the Yonghan R&D Building this summer, the upper and lower floors are the upstream and downstream of production, learning, and research. From front-end R&D to back-end acceptance, the key chain is opened up, and the R&D efficiency is accelerated.
According to reports, the annual output value of Jiangsu Yonghan is 200 million yuan. After the hot-end components that are being developed and put into mass production in the future, it will bring an increase of nearly 150 million yuan to the company’s output value every year.
Heavy-duty gas turbines are the core equipment in the field of power generation and drive, reflecting a country’s industrial level and the “jewel in the crown” of the equipment manufacturing industry. Its technology is widely used in aviation, ships, pipeline pressurization, power generation and other fields of national defense, transportation, energy and environmental protection. It has a very high strategic position and huge market prospects.
According to the operating parameters, gas turbines can be divided into E grade (initial gas temperature 1150℃-1250℃), F grade (gas initial temperature 1300℃-1450℃), G/H grade (gas initial temperature 1500℃-1600℃), J Class F (the initial gas temperature is above 1600°C), of which Class F is the mainstream model currently in service.