摘要：【中文】一种差动式旋喷泵，主要包括叶轮转子装置、由旋壳转子部件和旋壳盖板转子部件组成的旋壳转子装置以及左轴承体，轴承压盖、右轴承体、轴承压盖、外壳、外壳盖板、集流管和进水弯管等部件。叶轮转子装置和旋壳转子装置分别由不同功率的电动机驱动，其中驱动旋壳转子装置的是一台变频调速电机，可改变旋壳转子装置转速，使得旋壳转子装置转速与叶轮转子装置转速产生了转速差。不同转速的旋壳转子装置对由旋壳盖板与旋壳形成的旋转腔体内的液体旋转效应是不同的。通过改变旋壳转子装置的转速，可得到不同形状转速的扬程、效率与流量的关系曲线的族，满足不同需要的流量和扬程。 【EN】A differential rotary jet pump mainly comprises an impeller rotor device, a rotary shell rotor device consisting of a rotary shell rotor component and a rotary shell cover plate rotor component, a left bearing body, a bearing gland, a right bearing body, a bearing gland, a shell cover plate, a collecting pipe, a water inlet bent pipe and the like. The impeller rotor device and the rotating shell rotor device are respectively driven by motors with different powers, wherein the rotating shell rotor device is driven by a variable frequency speed regulating motor, and the rotating speed of the rotating shell rotor device can be changed, so that the rotating speed of the rotating shell rotor device and the rotating speed of the impeller rotor device generate a rotating speed difference. Different rotational speed spinner rotor assemblies have different liquid spinning effects within the spinner cavity formed by the spinner cover plate and the spinner. By changing the rotating speed of the rotary shell rotor device, a family of relation curves of lifts, efficiencies and flows with different rotating speeds can be obtained, and the flows and the lifts with different requirements can be met.

摘要：【中文】本发明公开了一种两级单吸旋喷泵，其特征在于：所述旋壳盖板与一级叶轮制作成一体，所述旋壳与二级叶轮制作成一体。泵轴带动旋壳及与其固连的旋转隔板、旋壳盖板一起旋转，实现了一级叶轮和二级叶轮串联并同步旋转工作；所述二级集流管安装在二级旋转腔体内，所述一级集流管安装在二级集流管的水平直管段上的O型密封圈上，使其位于一级旋转腔体内，且一级集流管在二级集流管上无相对的周向转动和轴向移动。所述进水弯管的内孔从二级集流管的水平直管段及其上的2个O型密封圈、键上穿入，且二级集流管在进水弯管的内孔无相对的周向转动和轴向移动。本发明实现了一级叶轮和二级叶轮4串联工作，对提高旋喷泵效率、改善汽蚀性能有十分重要意义。 【EN】The invention discloses a two-stage single-suction rotary jet pump, which is characterized in that: the rotary shell cover plate and the first-stage impeller are manufactured into a whole, and the rotary shell and the second-stage impeller are manufactured into a whole. The pump shaft drives the rotary shell, the rotary partition plate fixedly connected with the rotary shell and the rotary shell cover plate to rotate together, so that the primary impeller and the secondary impeller are connected in series and rotate synchronously; the two-stage collecting pipe is arranged in the two-stage rotating cavity, the one-stage collecting pipe is arranged on an O-shaped sealing ring on a horizontal straight pipe section of the two-stage collecting pipe, so that the one-stage collecting pipe is located in the one-stage rotating cavity, and the one-stage collecting pipe does not have relative circumferential rotation and axial movement on the two-stage collecting pipe. The inner hole of the water inlet elbow penetrates from the horizontal straight pipe section of the secondary collecting pipe and 2O-shaped sealing rings and keys on the horizontal straight pipe section, and the secondary collecting pipe does not have relative circumferential rotation and axial movement in the inner hole of the water inlet elbow. The invention realizes the series connection work of the first-stage impeller and the second-stage impeller 4, and has very important significance for improving the efficiency of the jet pump and the cavitation performance.