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Single screw pump working principle
Single Screw pump in the environmental protection, petrochemicals, pharmaceuticals, mining, printing, papermaking and other industries is very obvious role, the most prominent feature of single screw pump is adaptable, steady flow and strong self-absorption capacity , These features are unique to single screw pumps, which is also an important factor loved by users, then how does a single screw pump work? Next we will introduce the working principle of a single screw pump. Single screw pump works Single screw pump screw with a single thread, any section of which are all R radius of the circle, the cross section of the center is located on the helix and the axis of the screw deviation from an eccentricity e, the axis of rotation and The number of heads moved in the axial direction is greater than that of Lobes: the number of heads T1 of the stator of the screw is one more than the number of heads T2 of the rotor, that is, T1 = T2 + 1. Their ratio becomes the head-to-head ratio. Screw pump can be divided into single head (1: 2) and long (2: 3, 3: 4) and so on. The greater the head number, the greater the output torque of the screw pump, the lower the speed. On the contrary, the smaller the output torque, the higher the speed. The inner surface of the bushing has a double thread, and an arbitrary section of the bushing is an ellipse. The two ends of the bushing are semicircles with radius R (equal to the radius of the screw section), and the middle section is a straight section of length 4e. Any section of the bushing is the same oval, just offset from each other by an angle. After the screw is inserted into the bushing, a closed chamber is formed between the screw surface and the internal thread surface of the bushing, and at the same time an arbitrary section is also divided into two crescent-shaped working chambers up and down. As the screw rotates, the volume of the first working chamber near the suction chamber gradually increases to create a negative pressure, and the liquid is drawn into the working chamber by the pressure difference. As the screw continues to rotate, the working chamber volume increases to the maximum, the working chamber is closed, and the liquid is pushed axially toward the pressure chamber. At the same time, the upper and lower chambers alternately suck and discharge the liquid cyclically, so that the liquid is continuously and axially pushed from the suction chamber toward the pressure chamber. Through the above description of the working principle of the single screw pump, we can find that when the single screw pump is working, the screw is very important. The more screw heads are, the larger the output torque of the screw pump is and the lower the speed is. Therefore, users need to select a single screw pump based on the actual use of the matter to make a reasonable judgment. With the further work of experts and scholars, I believe single screw pump will work more and more appropriate market demand. This article is copyrighted industry interconnect (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network (CEO QQ / micro letter: 18,189,528) Editor: Coco (QQ / micro-channel: 97,129,096) starting: http : //beng.liuti.cn/ (Service Hotline:)