The world's largest caliber professional marine pump is off the assembly line

According to the recent news from Hunan Shanshui Energy Saving Technology Co., Ltd., the first 76-ton professional marine sand pump developed by the company was delivered off the assembly line. Its flow rate can reach 18000m3/h, which is the professional marine medium-opening pump with the largest diameter in China and even the world. This product can be widely used in many fields such as petrochemical industry. This marks a new breakthrough in the manufacturing capacity of energy-saving equipment in the field of fluids in China.

Â Â Â Â Â According to the company's chairman, Ying Yingjie, this high-flow, high-lift professional-grade sand pump can fill 12 ordinary swimming pools with a volume of 1500m3 for one hour, and the lift can reach 145m to 160m. The outer diameter of the impeller is 2.38m, the rotational speed is 410rpm, the weight of the impeller is 6.7 tons, the weight of the pump is 41 tons, and the weight of the whole pump is as high as 76 tons.

Â Â Â Â Â Sun Mingxia, the chief engineer of the company, told the reporter that the manufacturing, casting, machining, installation and commissioning capabilities of the company have been greatly tested in the manufacturing process of this super-large sand pump. Engineering technicians used Ansys structural strength analysis and domestic advanced CFD data analysis methods to carry out precise product design and technical optimization. Through the excellent manufacturing process of the manufacturing department, they broke through the design, mold production, casting, machining and assembly. Technical difficulties in the six links of the supporting process. Sun Mingxia said that in order to ensure the superior quality and stable performance of the products, designers have optimized the performance, strength and structure through finite element simulation analysis. The best combination of flow and pressure parameters increases the amount of sand produced by the pump; carefully designing the matching clearance of the pump, reasonable material selection, prolonging the service life of the pump, shortening the time for inspection and disassembly; design of the large diameter spindle ensures The pump has sufficient rigidity to cope with various harsh working conditions, and the actual test is compared with the CFD analysis results by making a model pump, and the final result is completely consistent. At the same time, in order to fully meet the special requirements of customers' working conditions and large motors, the pump has also added a number of complicated supporting processes in the design and manufacture to ensure that the pump can obtain good performance regardless of whether it uses high speed or low speed diesel engine. The cavitation performance, the pump runs more smoothly and the operating life is longer.

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