Analysis and application of frequency conversion transformation technology for hydraulic coupler speed-regulating feed water pump
SHI Yuanjiang
FENG Liguo
Abstract：Aiming at the problem of sudden increase in energy consumption of the electric feed water pump driven by the hydraulic coupling under low load,the reasons for the low efficiency and the main influencing factors are analyzed.The technical route for frequency conversion transformation is proposed,and three transformation directions are put forward for the original hydraulic coupling.By comparing the advantages and disadvantages of each technical solution,the basic principles of the transformation are clarified.The results show that after the transformation with the preferred scheme,the power consumption rate of the plant decreases by approximately 0.266%,and the equivalent coal consumption for power supply reduces by 1.249 g/kWh.
Keywords：feed water pump sethydraulic couplinglow loadfrequency conversion transformation
Publication Date：2025-06-25
Online Publishing Date：2025-09-01(First online date of this platform, not the publication date of the document)
Pages：4( 91-94 )