单螺杆泵是一种容积式泵,亦称为渐近式空穴泵(Progressitve Cavity Pump),简称“PCP”泵。单螺杆泵体由具有特定螺旋结构的定子和转子组成,结构简单,特别适用于输送含固相颗粒的粘稠液体,对于“三高原油”(比重高、凝固点高、含蜡量高)的开采, A single screw pump is a positive displacement pump, also known as Progressive Cavity Pump (Progressitve Cavity Pump), referred to as “PCP” pump. The single-screw pump body consists of a stator and a rotor with a specific helical structure. It has a simple structure and is particularly suitable for conveying viscous liquids containing solid phase particles. For the “three-high crude oil” (high specific gravity, high solidification point and high wax content) Mining,