Strive to project after 8 years of delivery of flight products
On behalf of members bring new information
Technology Daily, Beijing, March 4 The reporter learned from the 6th institute of China Aerospace Science and Technology Group on the 4th that China's key three-type liquid engine to be used for heavy rockets is carrying out research on key technologies and deepening program demonstration and has completed many rounds of core components And component-level combined heat test, of which, 500-ton engine 2018 can complete the whole machine prototype production and assembly.
NPC deputies and deputies Liu Zhuren, director of the six institutes, briefed S & T reporters about the three new-type liquid rocket engines for heavy-duty launch vehicles, namely the 500-ton liquefied-oxygen kerosene engine, the 200-tonne and the 25-ton liquid oxygen-liquid hydrogen engine, Used as a heavy rocket of the first, second and third.Three type of engine thrust, specific impact, thrust-weight ratio and so on are aimed at world-class level.
It is understood that heavy rocket is the necessary equipment for China's future large-scale space infrastructure construction, deep space exploration, manned lunar landing and other major science and technology projects. It is an important symbol of China's accomplishment of building a powerful nation in space. It is planned to make its first flight around 2030 With the development and implementation of a new generation of rocket vehicles such as the Long March 5, 6 and 7, the new rocket power technology in our country already has some foundation and is maturing, but the pressure on the development of liquid rocket hydraulics remains under heavy pressure.
Liu Chih-jen said that instead of simply zooming in, the technological difficulty has been exponentially increasing from the current 120-ton engine to the 500-ton engine, for example, with the increase of the thrust magnitude, the flow, pressure and heat flow of the combustion unit are greatly increased, It poses great challenges to structural design, thermal protection and heat conduction technology, and also places high demands on material strength, sealing technology and work reliability.
In addition, due to the great changes in the parameters brought by the thrust magnitude upgrade, the current test verification facilities can not fully meet the development needs and can not all carry out the 1: 1 full-scale test verification. Therefore, some technologies and products can only be simulated and reduced Than the verification, which brings great difficulty to the project research.
It is reported that in carrying out research on key technologies of heavy rocket power at the same time, Space Six Institute is working with relevant units to actively promote project approval, and strive to deliver flight products within 8 years after the project.