潜油电泵专用自动喷漆设备的研制

潜油电泵是油田常用的一种采油设备。对潜油电泵表面进行喷漆是潜油电泵制造的最后一道工艺,能够保护潜油电泵不被锈蚀。目前国内潜油电泵喷漆都是手工喷涂,喷涂均匀性及质量难以保证,并且对操作者有很大伤害。论文叙述中研制的自动喷漆设备,能够实现自动进料和自动喷漆。现场应用表明该系统不但可实现自动喷漆,提高喷漆质量,提高喷漆效率,而且环保,减少污染,有十分明显的经济效益。     

腔体数量对压电装置性能的影响

为确定腔体数量对压电泵和压电液压驱动器性能的影响,制作双腔至九腔串联压电装置并进行试验。结果表明：压电泵的输出随腔体数量增加而提升。压电泵的输出流量以腔数5个为界限,输出压力以腔数6个分界。腔数低于此数时,每增加一个腔室,二者均提升显著,流量最大可提升2.42倍,压力最大可提升1.96倍;腔数高于此数时,提升幅度较低。压电液压驱动器的输出速度/输出推力以腔体数量5为界,低于此数时,驱动器输出随腔数增加提升的幅度大;腔数在5以上时,提高幅度变小,但增量基本一致。驱动器负载时,随着腔数增加,输出能力和负载能力也逐渐提高。且在260 Hz、腔体数量高于5、负载低于15 N时,二者近似成正比。     

定向井双油管及潜油电泵完井技术

通过对涠１０─３油田７口井次的施工实践，介绍有关双油管完井的一般井下管柱结构、完井工具及其作用、现场施工的工艺等。另外，还向读者简单介绍涠１０─３油田大斜度井电泵的完井方法和管柱结构。     

超高扬程潜水泵排水系统水力过渡过程研究

采用特征线法计算不同阀门关闭规律与不同排水管径情况下单吸对旋超高扬程潜水泵排水系统的水力过渡过程,为深井抢险排水设计提供了可靠的技术数据。     

潜油电泵井效率分析

以潜油电泵井系统效率计算和测试试验为基础,分析了影响机组系统效率的各种因素。说明系统效率高低取决于潜油电泵设备各部件损耗和运行参数的设置,以及管理水平和油井状况。并提出了通过提升潜油电泵产品结构性能、优化油井和参数设计、加强日常管理等措施来提高潜油电泵井的系统效率。     

潜油电泵机组牺牲阳极保护技术在印尼北区油田的应用

潜油电泵在印尼北区油田使用过程中遭受严重腐蚀,由井液资料分析了潜油电泵腐蚀的原因。提出了采用镁合金牺牲阳极的阴极保护方案对潜油电泵机组进行保护,设计了潜油电泵机组中电机和电泵的镁合金牺牲阳极保护装置,并在实际应用中取得了良好的保护效果。     

潜油电泵变频节能分析

本文根据潜油电泵的特性曲线分析电潜泵变频调速的节能机理以及理论节能量,最后通过现场测试的电参数数据给出了潜油电泵变频调节的实际节电量。     

Analysis of the flow rate characteristics of valveless piezoelectric pump with fractal-like Y-shape branching tubes

Microchannel heat sink with high heat transfer coefficients has been extensively investigated due to its wide application prospective in electronic cooling. However, this cooling system requires a separate pump to drive the fluid transfer, which is uneasy to minimize and reduces their reliability and applicability of the whole system. In order to avoid these problems, valveless piezoelectric pump with fractal-like Y-shape branching tubes is proposed. Fractal-like Y-shape branching tube used in microchannel heat sinks is exploited as no-moving-part valve of the valveless piezoelectric pump. In order to obtain flow characteristics of the pump, the relationship between tube structure and flow rate of the pump is studied. Specifically, the flow resistances of fractal-like Y-shape branching tubes and flow rate of the pump are analyzed by using fractal theory. Then, finite element software is employed to simulate the flow field of the tube, and the relationships between pressure drop and flow rate along merging and dividing flows are obtained. Finally, valveless piezoelectric pumps with fractal-like Y-shape branching tubes with different fractal dimensions of diameter distribution are fabricated, and flow rate experiment is conducted. The experimental results show that the flow rate of the pump increases with the rise of fractal dimension of the tube diameter. When fractal dimension is 3, the maximum flow rate of the valveless pump is 29.16 mL/min under 100 V peak to peak （13 Hz） power supply, which reveals the relationship between flow rate and fractal dimensions of tube diameter distribution. This paper investigates the flow characteristics of valveless piezoelectric pump with fractal-like Y-shape branching tubes, which provides certain references for valveless piezoelectric pump with fractal-like Y-shape branching tubes in application on electronic chip cooling.     

半球缺阻流体无阀压电泵的实验验证

设计了一套压电双晶片作为激励源的半球缺阻流体无阀压电泵。分析了该压电泵的结构及工作原理,并采用有限元软件对其内部流场进行模拟分析。仿真结果表明:该泵存在正反向流阻不等特性,半球缺阻可以作为泵的无运动部件阀。最后,实际制作了半球缺无阀压电样泵和多组半径不等的半球缺,并进行了泵的流阻及流量实验。实验结果表明:该泵正反向流时间差随入口压强增大而减小;当驱动电压为150V,频率为17Hz,半球缺半径为4.0mm时,泵的输出流量达到最大,其值为121.4ml/min;同时,该泵单位时间内的输出流量随半球缺半径增大而呈递减的变化趋势,而且半球缺的半径大小对该类无阀压电泵的工作效能有较大的影响。