往复泵是一种容积式泵。在风力提水机组中的往复泵分活塞泵和隔膜泵两种,它借助泵缸中的活塞或隔膜的往复运动,使缸内的容积扩大或缩小,扩大时吸水,缩小时排水。 Reciprocating pump is a positive displacement pump. Reciprocating pumps are divided into piston pumps and diaphragm pumps in the wind-driven water pumping unit. With the reciprocating motion of the piston or diaphragm in the pump cylinder, the volume in the cylinder is expanded or contracted, and the water is absorbed when the water is expanded and drained when it is reduced.