摘要
管道清管器是插入管道中的装置，由产品流动推动在管道里运行。最初开发清管器是为了清除妨碍或延缓管道流通的沉淀物。它们根据多种不同的目的用在管道寿寿命期的各个阶段。
Pipeline pigs are devices that are inserted into a pipeline and travel the length of it driven by a product flow. Pigs were originally developed to remove deposits that could obstruct or retard flow through a pipeline. They are used during all phases in the life of a pipeline for many different purposes.
