The centrifugal pump is the core equipment in the fluid transportation system. However, the actual efficiency of domestic centrifugal pumps is generally 5% to 10% lower than the national standard efficiency line A, and the system operating efficiency is even lower by 10% to 20%, which is seriously inefficient. products, resulting in a huge waste of energy. Under the current trend of "energy saving, emission reduction, low carbon and environmental protection", it is urgent to develop high-quality, high-efficiency and energy-saving centrifugal pumps. The SLOWN type high-efficiency double-suction pump has the advantages of large flow, high efficiency and wide efficient area, stable and reliable operation, and convenient maintenance. The pump becomes the "best product" among them.
Design principles and methods of SLOWN high-efficiency double-suction pump
●The efficiency must meet the energy-saving evaluation value requirements of GB 19762-2007 "Energy Efficiency Limits and Energy Saving Evaluation Values of Clean Water Centrifugal Pumps", and the NPSH must meet the GB/T 13006-2013 "Cavitation Waste of Centrifugal Pumps, Mixed Flow Pumps and Axial Flow Pumps" quantity".
●Designed according to the principles of optimal working conditions and the most reasonable energy consumption, requiring high efficiency at a single operating point, a wide high-efficiency area, and good cavitation performance.
●Adopting a multi-working condition variable parameter design method and conducting comprehensive optimization design through ternary flow theory and CFD flow field analysis, the system has high comprehensive operation efficiency.
●Based on the actual operating conditions and through full system diagnostic analysis, high-efficiency energy-saving pumps can be customized and reasonably configured and system pipelines can be optimized to maximize system operating efficiency.
Technical advantages and characteristics of SLOWN type high-efficiency double-suction pump
●Introduce advanced foreign technology and cooperate with well-known domestic universities to carry out multi-working condition parallel calculation and variable parameter unconventional design.
●Pay not only attention to the design of the impeller and pressure chamber, but also the design of the suction chamber, while improving the efficiency and anti-cavitation performance of the pump.
●Pay attention to the performance of the design point as well as the performance of small flow and large flow, and minimize the flow loss under non-design conditions.
●Carry out three-dimensional modeling, and conduct performance prediction and secondary optimization through ternary flow theory and CFD flow field analysis.
●Part of the impeller outlet is designed as an inclined outlet to form a dovetail flow convergence, and some adjacent blades of the impeller are staggered to reduce flow pulses and improve operation stability.
●The extended double-stop sealing ring structure not only reduces gap leakage losses but also avoids the erosion phenomenon between the shell and the sealing ring to a large extent.
●Strive for excellence in production and manufacturing, and carry out strict process control and process treatment. The flow-passing surface can be coated with super-smooth, wear-resistant, abrasion-resistant and other polymer composite coatings to further improve the smoothness of the flow channel surface.
●The imported Borgmann mechanical seal is used to ensure no leakage for 20,000 hours, and the imported SKF and NSK bearings are used to ensure smooth operation for 50,000 hours.
SLOWN series high-efficiency double-suction pump performance display (excerpt)
Technical advantages and characteristics of SLOWN type high-efficiency double-suction pump
The SLOWN high-efficiency double-suction pump has been widely used in many fields and many energy-saving renovation projects, and has received wide acclaim!
Post time: Oct-20-2023