低输量管道输油泵改造的节能效果

随着任京线年输量的逐渐下降，管道输油泵所做的无用功越来越多。为提高泵压的利用率，减少耗电量，对任京线雄县泵站的输油泵先后进行了三次拆级改造，并安装了一台小功率输油泵，以实现输油泵的经济运行。实践证明，这样改造大大降低了任京线的耗电量，降低了输油成本。对低输量输油管道而言，进行泵级组改造及安装小功率泵并不是最佳的节电措施。采用调速技术，使输油泵适应负荷变化，改变转速来调节输油泵的运行点，才是解决泵节

Energy Efficiency in the Reconstruction of Pipeline Pumps for Lower Throughput.

Pipeline pumps are increasingly doing useless work with the decrease of annual throughput in Renqiu-Beijing Oil Pipeline. Three stage-takedown reconstructions are made to the oil pumps in Xongxian Station so as to improve pump efficiency and cut down power consumption. In addition pump with smaller power is installed to realize economic pump operation. The reconstructions are prooved energy saving and cost reducing. For low throughput oil pipeline,stage reconstruction and installation of pumps with smaller power are not optimal power-saving measures. It is the effective countermeasure against throttling loss in pumps to adopt speed regulator,so as to adjust pump speed according to load variation.