【Major Equipment in the Chemical Equipment Industry】055 – The first domestically produced set of centrifugal compressors for 80,000-class air separation units
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The past decade has been a period of rapid development in China’s chemical industry, with the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift advancement of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and increased use of domestic equipment. We invite everyone to share their insights and engage in discussions, to cheer for Made in China and to support the development of chemical processing equipment! *********************************** In May 2017, as part of the project to produce 300,000 tons of synthetic ammonia along with caprolactam and hydrogen, signed between Xi’an Shanggu Power Co., Ltd. and Jiangsu Haili Chemical Co., Ltd., the centrifugal compression units of the 80,000-class air separation unit – the first such units developed through independent innovation by Shanggu Power – were used in ultra-large-scale air separation units in China’s chemical industry. The successful signing of this project marks that Shaanxi Gas Turbine Power has broken the foreign monopoly on centrifugal compressor technology for ultra-large air separation units, achieved a breakthrough in the market, and promoted the localization of large-scale equipment.
Wang Haiwen, director of the Shaanxi Provincial Machinery Product Quality Supervision and Inspection Station, announced on that day that after 4 hours of on-site testing, the quality of the centrifugal compressor units used in the EIZ160-4 type air separation unit with a capacity of 80,000 Nm3/h, developed by Shaanxi Gas Turbine Power, met the requirements specified in JB/T 6443.1-2006 \"Axial and centrifugal compressors and expanders for use in the petroleum, chemical, and gas industries – Compressors\" and JB/T 6443.2-2006 (which is equivalent to Parts 1 and 2 of the American standard API 617:2002), as well as the requirements outlined in the product specifications. It was concluded that this prototype met the design requirements. The centrifugal air compression units used in the EIZ160-4 type air separation unit with a capacity of 80,000 Nm3/h, developed by Shaanxi Gas Turbine Power, employ single-axis internally cooled isothermal compression technology; the booster compressor EG71-5 uses multi-axis isothermal compression. These units feature a compact structure, high isothermal efficiency, and a wide range of adjustment options. This unit overcomes technical challenges related to aerodynamics, strength, and frequency, as well as difficulties in the manufacturing of components such as impellers, rotors, and casings. This ensures the reliability and sophistication of the unit, which boasts advantages such as high efficiency, energy savings, low noise levels, and a wide operating range. Factory tests have shown that the energy consumption of the entire compressor is **reduced**, its pneumatic performance is excellent, and all its pneumatic and mechanical parameters meet international advanced standards.
The 【Haichuan Equipment Guessing】 series is being updated continuously in 2022; all Haichuan community members are welcome to participate actively! https://bbs.hcbbs.com/thread-2079686-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum) Summary post on the series 【Major Equipment in the Chemical Equipment Industry】 https://bbs.hcbbs.com/thread-3312079-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum) Summary post discussing the components of cracking furnace equipment for 【Ethylene Cracking】 https://bbs.hcbbs.com/thread-3308724-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum)