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中国工业清洗协会化工行业特有工种职业技能鉴定站国家化学清洗技术研究推广中心文件中清协教培发[2016]08号化鉴[2016]04号国推发[2016]04号各单位或个人:PIG管道清洗技术是一项由管道保养维护技术发展演变而来的管道清洗技术。20世纪60年代,在欧美发达工业国家兴起,主要用于管道内表面除锈、除垢、脱水、干燥及涂敷,是预防和清除管道结垢的良好技术。该技术工艺装备简单、清洗时不必停输、对管道无腐蚀、无环境污染、操作简便、适宜作为常规操作定期进行。上世纪70年代,我国石油输运领域也尝试用球类和机械清管器用
China National Industrial Cleaning Association Chemical Industry-specific Occupational Skill Testing Station National Chemical Cleaning Technology Research and Promotion Center Document 中 清 协教 培发 [2016] No. 08 Huajian [2016] No. 04 Guo Pushu [2016] No. 04 All units or individuals : PIG Pipe Cleaning is a pipe cleaning technology evolved from the development and maintenance of pipe maintenance and repair technology. In the 1960s, the rise of advanced industrial countries in Europe and the United States was mainly used for the derusting, descaling, dehydration, drying and coating on the inner surface of pipelines. It is a good technique to prevent and remove pipe scaling. The technical process and equipment is simple, do not have to shut down when washing, no corrosion of the pipeline, no environmental pollution, easy to operate, suitable for routine operation as a regular. 70s of last century, China's oil transport also try ball and mechanical pig