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- hermetic screw pump 密闭式螺杆泵
- LGB screw pump is corrosion-resisitant . 并具有耐腐蚀性。
- Figure 1 express cutaway view of the three screw pump. 图1表示三螺杆 泵的剖视图。
- The computing procedure of all profiles design for double screw pump has been. 介绍了双螺杆泵各类型面设计的计算机设计程序。
- An automatic control system of screw pump is introduced in this paper.Accident is avoided while the screw pump works without slurry. 介绍了一种螺杆泵电气自动控制系统，成功地避免了螺杆泵在无矿浆状态下运行造成的毁坏事故。
- Main production gear pumps, screw pump, pump, high viscosity rotor pump. 主营生产齿轮泵、螺杆泵、离心泵、高粘度转子泵。
- PCM screw pump was used immediately after steam injection in Well Shu 1-39-036 and achieved initial success. 在曙1-39-036井注汽结束后直接采用PCM螺杆泵生产，获得阶段性成功。
- Machinery and other production methods, screw pump system is characterized by a higher system efficiency, a study of its great significance. 与其它机械采油方式相比，螺杆泵采油系统的突出特点是系统效率较高，对其进行研究意义重大。
- Our factory take the processing screw rotor as startinr points,developed the type of screw pump,screw spindle compressor,screw freezer. 我厂以螺杆转子加工制造备件起点，开发螺杆泵系列产品，螺杆式压缩机、冷冻机主机。
- According to the energy loss of every part of screw pump well,established system efficiency analysis model for the well. 根据螺杆泵井各个部分运动特点及能量损失情况,建立了螺杆泵井系统效率分析模型。
- An eccentric screw pump was used in place of centrifugal pump for conveyance of scum, so as to solve the clogging of the latter. 用偏心螺杆泵替代离心泵输送浮渣来解决离心泵堵塞的问题。
- For the disadvantage and shortage, thefour-location oil field screw pump rubber stator injection-vulcanization unit is newlydesigned. 针对其存在的缺点与不足，全新设计了四工位油田螺杆泵橡胶定子注射硫化机组。
- This pump is mainly comprised of 4-pole submersible electric motor, protector, connecting mechansim and special screw pump assembly. 它主要由4极潜油电动机、保护器、联泵机构和专用螺杆泵总成组成,地面采用电潜泵现有的配套技术。
- Abstract In the light of the frequent breakdown and badly lifting efficient of using conventional screw pump reco vering viscous crude. 开采较高粘度的稠油，常规螺杆泵往往表现出故障率高、举升效果差。
- Application of the model results show that the effectiveness and accuracy of other oil fields to enhance the efficiency of screw pump well system has a certain significance. 应用结果表明了该模型的有效性和准确性，对提高其他油田螺杆泵井系统效率具有一定的指导意义。
- Optimization design theory of screw pump production system has been discussed particularly, which include selection of screw pump, rod, tube, matching tool and drive sub. 详细论述了聚驱螺杆泵生产系统优选理论,包括螺杆泵的选择、抽油杆柱、油管、配套工具和驱动头的选择。
- This method bears preferable practicality for track coordinates calculation of moulding milling cutters used for machining the screw rotor in the screw pump. 该方法对加工螺杆泵中螺杆转子的成型铣刀轨迹坐标计算具有较好的实用性。
- The hermetic confines of an isolated life. 与世隔绝生活的不受外界干扰的区域
- The theory of profile curve design and mathematical model of the extruder were established by using gear meshing theory as well as design method of twin screw pump. 利用双螺杆泵的设计思想及空间啮合原理建立差速双螺杆挤出混炼机的型线设计方法与数学模型。
- But movement mode of screw pump is rotating motion.Bearing force mode of rod has been changed from tensile to torsional.So,the threadless rod is often generated fracture and trip. 应用到螺杆泵上以后,主要的运动方式是旋转运动,承力方式也由抗拉变成抗扭,使用以前的平扣抽油杆经常出现断脱现象。
