Supported by the Ministry of Finance, Technical Institute of Physics undertake major national scientific research equipment "large cryogenic refrigeration equipment development" project on April 29 at the Langfang base through physical and chemical inspection, the Division Vice President Zhang Yaping acceptance to participate in the meeting, organized by the Chinese Academy of Sciences Conditional Protection and Finance Bureau Director Wu Jianguo presided over.
The large-scale low-temperature technology in the liquid hydrogen temperature zone is a major sensitive technology that has long affected the development of China's aerospace industry and cutting-edge science, especially the 10,000-watt cryogenic refrigeration technology required for aerospace engineering. Developed countries have always restricted output to China. In order to break the passive situation of long-term adherence to people and master the initiative of high-tech development in related fields, the Ministry of Finance timely deployed this major equipment development task in 2011 . The project independently developed a large-scale cryogenic refrigeration equipment with a technical index of 10kW/20K and adiabatic expander ≥ 70% , which broke through the high-speed helium gas bearing turboexpander stability technology and ultra-low leakage rate plate fin Low-temperature heat exchanger design and manufacturing technology, high-precision oil separation technology, pneumatic low-temperature control valve manufacturing technology and system integration control technology five key technologies. The successful implementation of the project marks a new step in the research and development and manufacturing capacity of cryogenic refrigeration equipment in China's liquid hydrogen temperature zone, which not only meets the urgent needs of national strategic high-tech development such as large scientific engineering and aerospace engineering, but also promotes related fields. The development of advanced technology.
The acceptance expert committee on-site inspection of the operation status of large-scale cryogenic refrigeration equipment, listened to the project development work report, user use report, technical test report, financial acceptance report and file acceptance report, reviewed the relevant documents and materials, and agreed to pass the acceptance. Experts agreed that the completion of the project to break the monopoly of developed countries for large cryogenic liquid hydrogen technology zone, the temper out of a set of "research and development, integrated manufacturing, engineering applications" in one of the large cryogenic technology and engineering team, It has built a large-scale equipment R&D and production base, laying a foundation for further independent development of large-scale cryogenic refrigeration technology in China's lower temperature zone and localization of the system.
In the summary, Zhang Yaping pointed out that the Chinese Academy of Sciences attaches great importance to the independent innovation of scientific research equipment. With the support of the Ministry of Finance, it has carried out a series of innovative research and development of scientific research equipment and achieved remarkable results. During the implementation of the large-scale cryogenic refrigeration equipment development project, the innovative project organization mode and management mechanism were explored and accumulated rich management experience. The successful completion of the first phase of the project and the start of the second phase of the project are a new starting point. I hope that the project team will work hard to solve the problem and continue to strive for the support of relevant experts and users in the field to meet the strategic needs of the development of China's high-tech fields in the coming decades. Fully support the development of China's major scientific engineering, aerospace engineering and other fields.
With the support of the Ministry of Finance, the Institute of Physics and Chemistry has initiated the second phase of the development of large-scale cryogenic refrigeration equipment, which will carry out the development of large-scale cryogenic equipment in the lower temperature zone ( liquid helium / superfluid helium ) , promote the sustainable development of large-scale cryogenic refrigeration technology, and further satisfy China's Higher and broader needs in strategic high technology areas.
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