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水泵属于十大耗能设备之一,耗电量仅次于风机。在国务院颁发的2号指令中明确规定:“离心泵、轴流泵实际使用效率低于60％,需分期分批更换、改造”。但泵类实际运行效率,由于条件限制现场多采用估算方法,误差较大;结合我们工作中的体会,介绍一种较为准确、现场又易行的测算方法供大家参考。一、适用范围。适用于电动机驱动的、介质为不可压缩液体的泵类。二、体系确定。在能量平衡工作中,体系的确定十分重要。理论上讲,测定机泵系统效率,体系应
The pump is one of the top ten energy-consuming devices, and its power consumption is second only to the fan. According to the No. 2 Directive issued by the State Council, “The actual efficiency of centrifugal pumps and axial flow pumps is less than 60%, and they need to be replaced and modified in stages”. However, the actual operating efficiency of the pump, because of the limited conditions of the scene using the estimation method, the error is large; combined with our experience in the work, introduce a more accurate, on-site and easy measurement method for your reference. First, the scope of application. Suitable for motor-driven pumps with incompressible fluids. Second, the system is determined. In the work of energy balance, the determination of the system is very important. In theory, to determine the efficiency of the pump system, the system should