Xueqiang Dong

Title: Innovations of Xueqiang Dong in Low-Temperature Technologies

Introduction

Xueqiang Dong is a notable inventor based in Beijing, China. He has made significant contributions to the field of low-temperature technologies, holding a total of 2 patents. His work focuses on innovative systems that enhance the efficiency of freeze-drying processes.

Latest Patents

One of Xueqiang Dong's latest patents is a low-temperature quick-freezing freeze-drying system. This invention includes a compressor unit, a first heat exchanger, an air cooler, a second heat exchanger, a throttling element, a third heat exchanger, a circulating fan, a drying chamber, and various valves and connecting pipelines. These components work together to form refrigeration and freeze-drying circulation loops, enabling the low-temperature quick-freezing and freeze-drying of materials. The system utilizes heat exchangers with a cold storage function, allowing for rapid cooling of materials by intensively storing and using the refrigeration capacity of the compressor.

Another significant patent involves a cryogenic liquid medium. This medium comprises at least one of an alkane composition, an olefin composition, an alcohol composition, and an ether composition. Each of these compositions includes non-toxic and harmless substances with a melting point lower than -110°C and a standard boiling point higher than 50°C. The unique properties of this cryogenic liquid medium make it difficult to volatilize, thus achieving the necessary low temperatures for various applications.

Career Highlights

Xueqiang Dong is affiliated with the Chinese Academy of Sciences, where he continues to advance research in low-temperature technologies. His innovative approaches have garnered attention in the scientific community, contributing to the development of more efficient freeze-drying systems.

Collaborations

Xueqiang has collaborated with notable colleagues, including Maoqiong Gong and Yanxing Zhao. Their combined expertise has furthered the research and development of low-temperature technologies.

Conclusion

Xueqiang Dong's contributions to low-temperature technologies through his innovative patents demonstrate his commitment to advancing scientific research. His work not only enhances freeze-drying processes but also paves the way for future innovations in the field.