航空煤油的油品质量关系到飞机安全,因此油品质量必须严格把控。新建投产管道在施工建设及投产过程中容易混入杂质造成油品质量不合格,给航油管道初期运行投产造成很大困难。提前布局谋划,在施工、试压、清扫、投运等环节做好质量控制,管道堆放运输要安装管帽,焊接每一道焊口要及时清理焊渣,试压过程要确保水质合格、清扫要确保球的过盈量,注重不同方式球的组合,确保杂质和附锈充分掉落并带出管道,严格过程管理和验收标准,正式投油时采用双水头在航油前面再次冲洗管道,同时油水隔离,防止航油污染,最终确保航油管道一次性投产成功。以津京第二输油管道实践经验为例,分析航油管道清洁度控制措施,确保了首次投产航油油品质量合格,对其他航油管道建设投产运行具有借鉴意义。

The quality of aviation fuel is crucial to the safety of aircraft, so the quality of aviation fuel must be strictly controlled. The construction and commissioning of new pipelines can lead to the introduction of impurities into the pipeline, resulting in substandard quality of the aviation fuel. This poses significant challenges for the initial operation of the aviation fuel pipeline. Advance planning and preparation should be carried out to ensure quality control during construction, pressure testing, cleaning, and commissioning stages. Pipe caps should be put on for pipe stacking and transportation, and welding slag should be cleaned in a timely manner after completing each welding joint. During the pressure testing process, water used should comply with the quality specifications, and the suitably oversized sealing cleaning pig selected to ensure the effective cleaning of the pipeline inner surface. Different combinations of cup pig sizes should be fully considered to ensure that impurities and rust can completely fall off and be taken out of the pipeline. Strict process management and acceptance standards should be implemented. During initial introduction of the aviation fuel, double water columns should be used to rinse the pipeline again in front of the oil, while oil and water should be isolated to prevent contamination of the aviation fuel in order to ensure the success of the operation of the pipeline in the first attempt. Taking the practical experience of TianjinBeijing Second Oil Pipeline as a case study, this paper analyzes the cleanliness control measures of aviation fuel pipeline and ensures the quality of aviation fuel in the first commissioning attempt. This experience and approach provides guidance and reference for the construction and commissioning of other aviation fuel pipelines.