Securities code: 002639 securities abbreviation: Fujian Snowman Co.Ltd(002639) Announcement No.: 2022-001 Fujian Snowman Co.Ltd(002639)
Announcement on passing the evaluation of scientific and technological achievements of refrigeration low temperature application technology
The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.
Fujian Snowman Co.Ltd(002639) (hereinafter referred to as "the company") and the Institute of physical and chemical technology of the Chinese Academy of Sciences jointly completed the project of "key technology and refrigeration low temperature application of automatic control content product ratio large helium screw compressor unit", which successfully passed the scientific and technological achievement evaluation of Zhongke hechuang (Beijing) scientific and technological achievement evaluation center. The relevant contents are as follows:
1、 Evaluation of technical achievements
(i) Basic information of project evaluation
On December 30, 2021, Zhongke hechuang (Beijing) scientific and Technological Achievement Evaluation Center organized experts to evaluate the scientific and technological achievements of the project "key technology and refrigeration low temperature application of automatic control volume ratio large helium screw compressor unit" jointly completed by the company and the Institute of physical and chemical technology of the Chinese Academy of Sciences.
This achievement evaluation expert committee is composed of Wang Jun, academician of Chinese Academy of engineering and professor of Beijing University of Aeronautics and Astronautics, Liu Zhanqing, researcher of State Key Laboratory of aerospace cryogenic propellant technology, Wang Li, Professor of School of energy and environmental engineering of Beijing University of science and technology, Hong Weirong, Professor of Institute of chemical machinery of Zhejiang University, Zhang Chunlu, Professor of Institute of refrigeration and cryogenic engineering of Tongji University, Wang Xilong, researcher of Dalian Institute of Chemical Physics, Chinese Academy of Sciences, and Zhang Zhaohui, professor level senior engineer of China Refrigeration and air conditioning industry association.
After inquiry and discussion, the evaluation committee believes that the project achievements have independent intellectual property rights, are technically difficult and innovative, the overall technology has reached the international leading level, has important social and economic benefits, and has broad market application prospects. It is unanimously agreed to pass the evaluation of scientific and technological achievements.
（2） Brief description of technical achievements
The project "key technologies of automatic control content product ratio large helium screw compressor unit and refrigeration low temperature application" solves a series of key technologies of large helium injection screw compressor unit, lays a foundation for the localization of national major low temperature equipment from liquid helium to superfluid helium temperature zone, and operates reliably in China's new natural gas helium extraction unit for a long time, It provides an important guarantee for China's first ton hydrogen liquefaction equipment.
The project has developed a new line suitable for compressing helium working medium, with a tooth ratio of 5:7 and a meshing clearance of 20 μ Under the rated load condition, the volumetric efficiency reaches 92.4%, the adiabatic efficiency 84.9% and the isothermal efficiency 61%. The project has developed a four stage progressive regulation control mode of content product ratio (BVR). The adjustable range of BVR is 2.0-5.5, which effectively improves the efficiency and stability of the unit. A mixed three-stage oil separation technology with internal vertical and horizontal separation is developed, and the oil content at the helium outlet is controlled below 2ppmw. The low temperature special nodular cast iron compressor shell is developed to meet the adaptability of low temperature environment.
（3） Evaluation comments
The evaluation committee believes that the achievements of the project "automatic control content product ratio, key technology of large helium screw compressor unit and refrigeration low temperature application" completed by the research and development unit have independent intellectual property rights, great technical difficulty, strong innovation, important economic and social benefits, and broad market application prospects.
In conclusion, the expert group believes that the project as a whole has reached the international leading level, and the evaluation committee unanimously approved the evaluation of scientific and technological achievements.
2、 Impact on the company
1. The project of "automatic control content product ratio, key technology of large helium screw compressor unit and refrigeration low temperature application" has passed the evaluation of scientific and technological achievements, which reflects the full recognition of the company's helium screw compressor technology by industry technical experts, and has played a positive role in promoting the company's further promotion of the technology in the field of ultra-low temperature refrigeration.
2. The achievement of this technical achievement marks that the company's high-end technical level has entered a new level, which will greatly enhance the company's core competitiveness in the field of national major science and technology projects, and is of great significance to the company's transformation and upgrading and scientific and technological innovation.
3. This technical achievement has reached the international advanced level. This technical achievement is a major original breakthrough in the forefront of Science in China and is of great significance to promote national scientific and technological progress and innovative development.
4. Through the evaluation of the project results, the company broke the foreign monopoly, filled the gap in China, laid the foundation for the localization of national major low-temperature equipment from liquid helium to superfluid helium temperature zone, provided an important guarantee for China's first ton hydrogen liquefaction equipment, had important social and economic benefits, and had broad market application prospects.
3、 Risk tips
The achievement of this technical achievement will not have a significant impact on the company's performance in 2021, and will be conducive to the company's performance growth in the long term. There is uncertainty in the future market promotion, application and implementation, and advanced technology. We should invite investors to pay attention to investment risk.
It is hereby announced.
Fujian Snowman Co.Ltd(002639) board of directors December 31, 2021
