en.Wedoany.com Reported - Jin Xin, Director of the Air Separation Package Department at Shengu Group's Solution Center, led his team to complete the research and design of over 400 sets of centrifugal compressors, advancing China's domestic air separation equipment from the 60,000 oxygen production level to the 120,000 level, while reducing the compressor impeller stages from 4 to 3, resulting in a 25% decrease in overall equipment weight and a 1% increase in operational efficiency. Over two decades of work on the front line of centrifugal compressor research and development, Jin Xin has obtained 20 patents and 5 provincial/ministerial-level science and technology progress awards.
Centrifugal compressors are one of the core pieces of equipment in the chemical and energy industries. Previously, China's large-scale domestic air separation equipment suffered from low capacity levels and reliance on imported core units. Jin Xin's team steadily upgraded domestic air separation compressors from the 60,000 and 70,000 oxygen production levels to the 100,000 and 120,000 scales. Targeting technical bottlenecks in compressors for large coal-to-methanol and coal-to-ethylene glycol plants, the team overcame challenges one by one, driving the independent research and development of supporting components such as motors, seals, and couplings, thereby establishing a self-reliant supporting system.
The new development project for a three-stage single-shaft air separation compressor represents a major breakthrough for the team. During a project meeting, the client noted that foreign equipment uses 3 impellers while domestic equipment requires 4. Jin Xin's team developed a completely new model from scratch, replacing the 4-stage impeller with a 3-stage one. Compared to traditional models, the new equipment's overall weight decreased by 25%, and operational efficiency increased by 1%; compared to the first-generation product, the weight reduction reached 43%. This lightweight design shortens the manufacturing cycle and reduces the user's long-term energy consumption. The team's current goal is to achieve an additional 15% weight reduction.
In the field of ultra-large air separation compressor research and development, core technologies for levels above 100,000 were long monopolized by foreign companies. Jin Xin's team spent five years developing the 8+2 ultra-large air separation compressor unit, and then another three years iterating to introduce a 6-stage axial plus 1-stage centrifugal solution, reducing the unit's overall weight by 30% and increasing operational efficiency by 2%. This series of domestic units outperforms similar overseas products in terms of cost-effectiveness, delivery cycle, and on-site operation and maintenance services, with 19 units currently in operation.
Jin Xin believes that professionals in equipment research and development must inherit three qualities: being down-to-earth, facing challenges head-on, and persisting in the industry. He hopes that the new generation of young industrial builders will delve deeply into core technologies, driving the development of China's major technical equipment manufacturing industry.
