不锈钢单螺杆泵是一种单螺杆式输运泵,它的主要工作部件是偏心螺旋体的螺杆（称转子）和内表面呈双线螺旋面的螺杆衬套（称定子）。其工作原理是当电动机带动泵轴转动时,螺杆一方面绕本身的轴线旋转,另一方面它又沿衬套内表面滚动,于是形成泵的密封腔室。螺杆每转一周,密封腔内的液体向前推进一个螺距,随着螺杆的连续转动,液体螺旋形方式从一个密封腔压向另一个密封腔,最后挤出泵体。螺杆泵是一种新型的输送液体的机械,具有结构简单、工作安全可靠、使用维修方便、出液连续均匀、压力稳定等优点。一种利用螺杆的旋转来吸排液体的泵，它最适于吸排黏稠液体.
Stainless steel single screw pump is a kind of single screw transport pump. Its main working parts are the screw of eccentric screw body (called rotor) and the screw bushing with double spiral surface (called stator). Its working principle is that when the motor drives the pump shaft to rotate, on the one hand, the screw rotates around its own axis, on the other hand, it rolls along the inner surface of the bushing, thus forming the sealing chamber of the pump. With the continuous rotation of the screw, the liquid in the sealing cavity is pressed forward by a screw pitch. With the continuous rotation of the screw, the liquid is pressed from one sealing cavity to another, and finally the pump body is extruded. Screw pump is a new type of liquid conveying machinery, which has the advantages of simple structure, safe and reliable work, convenient use and maintenance, continuous and uniform liquid output and stable pressure. The utility model relates to a pump which uses the rotation of screw to suck and discharge liquid