【Ten Years of Rapid Development in Chemical Processing Equipment】The new generation (6+1) air turbine compressor units underwent mid-term evaluation based on their industrial operation from 2015 to 2023
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Looking at the development of chemical engineering technology over the past decade, we praise the prosperity and strength of modern China. This is just a starting point to encourage further discussion among everyone; with your participation, things will become even more interesting. [Ten Years of Progress in Chemical Engineering Equipment] – Regular updates and summaries are available; feel free to join the discussions at https://bbs.hcbbs.com/thread-3576046-1-1.html. Prevention first, life above all. ----------------------------------------- On October 20th, the new generation of air turbine compressors developed jointly by Shenyang Gear Group Co., Ltd. and Hangzhou Steam Turbine Power Group Co., Ltd. passed the mid-term performance evaluation conducted by the China General Machinery Industry Association. This compressor unit is the one with the highest oxygen production capacity among the air separation units in use in China at present. It is used in the third-phase coal-to-olefins project of Ningxia Baofeng Energy Group, and was put into industrial operation in February 2023; to date, it has operated steadily for over 5,000 hours. This review meeting was chaired by Huang Li, President of the China General Machinery Industry Association. The evaluation panel, headed by Sui Yongbin, former chief engineer of the China National Machinery Industry Federation, and comprising 9 industry experts, listened to the progress reports submitted by the development and application units, conducted on-site inspections, and then issued their final evaluation opinions. The review comments state that the new generation (6+1) air turbine compressor units are successful; their various technical specifications meet the requirements of relevant standards, and they reach the advanced level of similar international products. Indicators such as unit efficiency and vibration levels are superior to those of imported foreign products, representing another significant breakthrough in the localization of major equipment in China. This achievement can be applied and promoted in fields such as large-scale oil refining and chemical manufacturing, as well as coal chemical industry. According to Wang Chuanghua, an expert and deputy chief engineer at SHENGU Group, the new generation (6+1) air turbine compressor units feature a coaxial axial-flow + centrifugal design. It represents an upgrade from the first-generation configuration of 8 axial-flow stages plus 2 centrifugal stages to one with 6 axial-flow stages plus 1 centrifugal stage. The size of these units has been reduced by 25%, their weight has been decreased by 30%, and their manufacturing time has been shortened by 20%. The pressure ratio per stage in the axial-flow section has increased by 3% to 11%, while the efficiency of each stage has improved by 2%. These units are capable of producing 105,000 standard cubic meters of oxygen per hour. The entire air separation unit boasts excellent mechanical performance, is safe and stable, and its energy consumption figures are slightly better than those of imported equipment.
It is understood that the compressor units used in China’s extra-large air separation plants have long relied on imports. In August 2015, China’s first 100,000-class air separation compressor, developed by SHENGU Group, passed the acceptance tests, marking China as the second country in the world capable of designing and manufacturing compressors for ultra-large-scale air separation units. SHENGU Group thus became the third company in the world, after German firms Siemens and Mannesmann, to be able to produce such products. After more than 10 years of development, the performance of domestic compression units has improved significantly; they operate stably and reliably in real-world conditions, enabling long-term operation at full load. The technical level of these domestic units is now on par with that of imported units, moving from a position of catching up to one of competing on an equal footing. The domestic unit market has broad prospects and great potential.
It is worth mentioning that the company that will use the compressor units approved in this review, Ningxia Baofeng Energy Group Co., Ltd., is a leading enterprise in the field of high-end coal-based new materials and is listed on the A-share main board. The company is committed to becoming a technology-driven, green manufacturing enterprise that is innovative in technology, leads in technological advancement, is a pioneer in its industry, and ranks among the best in the world; it always employs the most advanced and sophisticated processes, technologies, and equipment available globally. Since 2018, Baofeng Energy has successively entrusted Shenyang Blower Group with the development tasks for several sets of ultra-large air separation unit compressors, using them as key projects to achieve the localization of next-generation super-large air separation compressor units. Gao Jianjun, Executive Vice President of Ningxia Baofeng Energy Group Co., Ltd., said that the new generation of axial-flow + centrifugal (6+1) type air turbine compressors used in ultra-large-scale air separation units have been in operation at the Ningdong Phase III project since March this year. After nearly 5,000 hours of industrial operation, these compressors have demonstrated stable performance, with their capabilities meeting the requirements of the production process, thus achieving the goals of safe, stable, long-term, full-capacity, and high-quality operation. The localization of large-scale air separation units has put an end to China’s history of being unable to produce heavy equipment, and it has significantly shortened the delivery, transportation, and installation and commissioning periods. It is precisely because of responsible enterprises and domestic companies such as SHENGU, HANGQI, and HANGYANG that the process of local production and internationalization of air separation equipment has been greatly accelerated, thereby raising the overall level of China’s heavy machinery manufacturing and providing a solid foundation for the secure development of the national economy.
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【Ten Years of Rapid Development in Chemical Engineering Equipment】China’s First Integrated Turbine-Driven Pump from 2012 to 2023 https://bbs.hcbbs.com/thread-5493315-1-1.html (Source: Haichuan Chemical Engineering Forum)