一种用于稠油输送的径向活塞泵的研制

Development and capability of a radial piston pump for heavy oil transportation

研制了一种适用于稠油输送的新型阀配流式径向活塞泵.该种新型阀配流式径向活塞泵采用了独立、可摆动式液缸体结构,并利用了机械强制回程.除具有传统往复泵的基本优点之外,还具有结构更加紧凑、体积更小、重量更轻、效率更高、脉动更小等优点.按照GB/T 7784—2006标准检测,在额定工况下,新型阀配流式径向活塞泵的机械效率可达89%,容积效率高达92%.该泵样机在辽河油田进行了长达3个月的现场试验测试.测试结果表明,样机运转平稳,且无故障、无泄漏.该种新型阀配流式径向活塞泵作为节能产品在稠油输送领域有良好的应用前景.

A new flat valve type radial piston pump for heavy oil transportation is introduced in the article. This new radial piston pump uses many independent shakeable cylinder blocks besides mechanical mandatory return stroke. Compared to the traditional reciprocating pumps, it is more compacter in frame, smaller in size, lighter in weight and lower in flow capacity pulsation rate, and so on. In accordance with the standard testing of GB/T 7784--2006, under the rated working condition, the pump mechanical efficiency is extended to 89% while the pump volumetric efficiency is extended to 92%. Besides,a reliabili- ty test which lasted three months was done for a prototype of this new pump in Liaohe oil region. During this test, the prototype ran smoothly with no malfunction and no leakage. So this new pump has good ap- plication prospects as a kind of energy-saving product.