石化仓储企业中转的物料品种多且中转的品种不确定,因此存在不同品种的物料共用管线进行输送的情况。为保证物料的数量和质量,在更换品种及计量时需要将管线内的物料进行处理。本文简要介绍了通球清管工艺在石化仓储企业生产中的重要作用以及3种清管工艺的不同特点和操作的注意要点。 Due to the uncertainties of the varieties of materials transited by petrochemical warehousing enterprises and the transshipment of products, there is a case where different types of material common pipelines are transported. In order to ensure the quantity and quality of the materials, the materials in the pipeline need to be processed when changing the varieties and measuring. This article briefly introduces the important role of ball-in-pipe pigging technology in the production of petrochemical warehousing enterprises and points of attention of different characteristics and operation of the three pigging technologies.