| 1. | Application of motor submersible pump in flask neck
电动潜油泵在上卸鹤管中的应用 |
| 2. | Truck unloaders with submerged pumps
带潜油泵卸车臂 |
| 3. | The results also display the impeller ' s good hydraulic properties and the vaned diffuser ' s imperfect hydraulic properties and low efficiency
计算结果还显示：潜油泵叶轮有较好的水力性能，而潜油泵导轮的水力性能是不完善的，效率较低。 |
| 4. | This article compares the fuelling process between the typical self - suction pump and modern immersible pump - based fuelling in fuelling stations
摘要介绍了传统加油站采用自吸泵型加油机的加油工艺和近年来采用潜油泵加油机的加油工艺，并进行了对比。 |
| 5. | In the light of the pickup current of a submersible electric pump being too large when started at full pressure , a new variable - frequency control system is developed
针对电动潜油泵工频全压启动时存在启动电流过大等诸多问题，开发出新型电动潜油泵变频控制系统。 |
| 6. | Based on examples , the problems in reinstallation process of oil pump , tap - changer and bushing after transformer maintenance overhaul are analyzed . the measures to prevent the problems are presented
摘要以实例分析了变压器大修后潜油泵、无励磁分接开关、套管回装过程中存在的问题，提出了防止类似问题发生的措施。 |
| 7. | For pump shafts , the results reveal that the stress in the spline is higher than the other parts of the shaft , and the highest stress is at bottom and terminal of the spline . in fact , the broken of shafts is at the same position ; it demonstrates that the calculation is right
实践证明，轴断部位基本集中在潜油泵轴花键的根部，说明计算结果和实际是吻合的；对于潜油电机轴，应力集中点主要处在轴承键与环槽的交界处和花键的根部。 |
| 8. | It is pointed out that the immersible pump - based fuelling process can realize the multi oil gun on the one pump basis under the condition of positive pressure , which makes the design of fuelling station more flexible and is a development tendency in modern fuelling station
指出采用自吸泵型加油机的加油工艺存在弊端，而采用潜油泵加油机的加油工艺，可以实现一泵多枪，油罐正压出油，技术先进，工艺简单，使加油站设计更加灵活，是现代化新型加油站的技术发展趋势。 |
| 9. | The suitable oil flux during the circulating of transformer could be defined according to the difference of temperature between the oil and wind in the inlet and the cooling capacity of the wind cooling system ; besides the oil flux can be determined by ultrasonic , it can be estimated whether the oil is flowing equably by determining the oil flux in the branch pipes ; reducing the oil flux of the oil pump could be realized by controlling to change its frequency , which could not only save the energy , reduce the wastage , but benefit the transformer ' s circulating safely
变压器运行中可根据进口油温和进口风温之差、风冷却器的冷却容量来确定合适的油流量；油流量可以通过超声波法进行测量，测量油的分管流量还可判断油流的均匀情况；降低潜油泵流量可通过潜油泵的变频控制来实现，不仅节能降耗，对变压器的安全运行也有着重要意义。 |
