【Ten Years of Great Development in Chemical Equipment】The period from 1983 to 2022 is finally here! It took four years. The high-pressure ammonium methylate pump with a head of 3833 meters is being sent to Europe for use in large fertilizer plants
Thread Content
Ten years of rapid development in chemical processing equipment – a testament to the prosperity and strength of modern China. Wishing everyone a happy New Year, and may your families be safe and healthy. I hope this contribution will encourage more people to participate; with your involvement, Haichuan becomes even better. Everyone is welcome to join in the discussions on this forum. On May 20, 2022, after nearly 4 years of hard work, four large-scale fertilizer production units, each with a flow rate of 233 cubic meters per hour and a head pressure of 3833 meters, were shipped from Dalian Port to European customers using high-pressure ammonia pumps. This marked the first time that such high-pressure ammonia pumps were exported to Europe. High-pressure ammonium methoxide pumps are key core equipment in urea production plants. Due to the tendency of the fluid used in these pumps to crystallize, the special operating conditions, the strong corrosive nature of the fluid, and the high level of risk associated with them, manufacturing such pumps is quite challenging. As a result, the global market, including the Chinese market, is almost entirely dominated by a few major foreign brands. After 2012, domestic development of high-pressure ammonia pumps gradually began in China, but their head pressure never exceeded 2,900 meters. Shenyang Industrial Pump Factory (Co., Ltd.) was the first domestic manufacturer to successfully develop a high-pressure methanol pump with a head of over 3,800 meters.
The design of this pump began in April 2018; CFD calculations and ANSYS finite element analysis were completed in March 2019. Manufacturing started in November 2019, and it passed its initial tests at the **Industrial Pump Quality Supervision and Inspection Center in December 2021, with all parameters meeting or exceeding the requirements specified in the standards. It is worth noting that the pump’s rotation speed is 3800 r/min, its water-driven power is 4000 kilowatts; according to API610, the allowable vibration level should not exceed 3.6 mm/s, while the value measured this time was only 2.4 mm/s, which is far below the requirements specified in the standards. The pump is designed according to the BB5 double-shell specification outlined in API610; the total weight of the unit, including the motor, is 34 tons. All components are manufactured in accordance with ASME standards. The pressure-bearing forged casing and pump cover are imported from the Czech Republic, made from urea-grade austenitic stainless steel and super duplex stainless steel. The pump shaft, guide vanes, and impeller are partly imported as finished products from Poland and partly manufactured domestically. Based on the results of the final tests, there is almost no difference between domestic and foreign manufacturing techniques.
【Ten Years of Rapid Development in Chemical Engineering Equipment】Domestic production of seals for rich gas compressors in catalytic units from 2018 to 2021 https://bbs.hcbbs.com/thread-3590831-1-1.html (Source: Haichuan Network – Chemical Industry Trends)