【Ten Years of Rapid Development in Chemical Equipment】From 2030 to 2025, Shaanxi Gas Turbine Power, in collaboration with Ningxia Runxia, completed China’s first project to convert nitric acid production units from steam-driven to electric-driven systems

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Let’s give praise and encouragement to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Progress in Chemical Engineering Equipment】Continuous updates and summaries are available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** Shangdu Power, in collaboration with Ningxia Runxia, has completed China’s first project to convert nitric acid production units from steam-driven to electric-driven systems. The high-speed motors operate at a stable speed of 9,540 revolutions per minute, and all parameters displayed on the control room screens are normal. Amidst the applause at the scene, everyone wore smiles of triumph and joy – Ningxia Runxia Energy & Chemical Co., Ltd. (referred to as “Ningxia Runxia”) has thus equipped its nitric acid production units with new “Chinese-style power”. Recently, the combined unit of Ningxia Runxia’s 150,000 tons per year nitric acid production facility underwent a joint test run using domestically produced high-speed motors in place of steam-driven motors, and it operated stably for 72 hours. This achievement marks China’s first technical breakthrough in the field of nitric acid production units, with systems driven by entirely domestic high-speed motors; it fills a technological gap in this area within China and provides important practical support for the low-carbon transformation of China’s process industries as well as for the development of self-reliant advanced manufacturing technologies. This project was overall contracted by Xi’an Shanggu Power Co., Ltd. (referred to as “Shanggu”), marking the first time that a domestically produced high-speed motor was used to drive a four-in-one nitric acid production unit in a conversion from steam-driven to electric-driven operation. This initiative provided a replicable and efficient technical pathway for the full domestic utilization of high-speed motors in China’s process industry. In recent years, with the further advancement of the **\"dual carbon\" strategy, existing coal-fired boilers have been shut down or upgraded, and strict limits have been imposed on energy consumption for new production capacities; thus, a green transformation of traditional high-energy-consuming industries has become an urgent necessity. It seems there are only two options for businesses: either invest heavily in building new steam systems or purchasing them, but this goes against the goal of reducing energy consumption and emissions ； Either find a new driving method for the unit – “converting from steam to electricity”. The use of a high-speed motor for direct drive of the nitric acid four-in-one unit offers numerous advantages, including fewer devices, less space required, and higher efficiency. Is it possible to achieve such high-speed fully domestic motor direct-drive technology? There are no successful precedents in the country. Will the critical speed of the unit and the shafting be compatible after the modification, allowing for stable operation? There are no precedents in the industry. Numerous high technical barriers stand in the way, deterring many companies. Behind the difficulties lie opportunities as well. The path toward domestic production of nitrogen acid four-in-one units in China began with Shaanxi Blower. It is understood that Shaanxi Gas Turbine has accumulated experience with over 140 sets of nitric acid four-in-one units, as well as extensive expertise in project EPC. It has developed a complete range of products with production capacities ranging from 50,000 tons to 600,000 tons per year, and its technology is at the international leading level. Shanxi Gas Turbine has innovatively developed the largest operating \"360,000 tons/year high-efficiency wide-condition nitric acid integrated unit\" in China to date. It has won numerous awards, including the China Machinery Industry Science and Technology Award, the First Prize for Science and Technology from the China Nitrogen Fertilizer Industry Association, the \"Outstanding Scientific and Technological Innovation Achievement\" award in China’s petroleum and petrochemical equipment sector, as well as the title of China’s first major technical equipment demonstration project of its kind. It is this comprehensive experience, spanning from the first set of domestically produced units to the largest such units, along with decades of in-depth understanding of the nitric acid production process, that enables Shaanxi Blower to confidently offer system solutions that integrate manufacturing and services seamlessly in the face of the challenge of converting steam-driven systems to electric ones using high-speed motors. This renovation is far from a simple replacement of equipment; it represents a thorough collaborative development process that goes from identifying requirements to formulating solutions. From the initial joint feasibility studies and technical coordination to equipment manufacturing and on-site commissioning, Shaanxi Gas Turbine worked together with its client Ningxia Runxia to address various challenges, including critical speed matching, shafting torsional vibration calculation, and control system integration. In the severe cold of minus 10 degrees Celsius, the Shaanxi Gear Project team remained at the work site, successfully completing key tasks such as the installation of motors and frequency converters, the alignment of the units, and the joint testing of individual units and the overall system, thereby ensuring the high-quality progress of the project through their professional expertise. From achieving the first breakthrough in domestic production to proactively overcoming the barriers to industry upgrading in the field of converting gasoline engines to electric ones, Shaanxi Gas Turbine Power has always kept its steps in line with **major strategic goals and the core needs of industrial transformation. This breakthrough represents a systematic technological advancement achieved in collaboration with domestic supply chain partners. It signifies that, in the effort to promote the green transformation of the process industry, the industrial ecosystem led by Shaanxi Gas Turbine is undergoing a comprehensive transformation – shifting from being merely providers of key equipment to becoming leaders who define technical pathways and standards, drive the upgrading of the entire industry chain, and work toward achieving a low-carbon future for basic industries.