裂解气压缩机管道无应力安装

STRESS-FREE PIPING INSTALLATION OF CRACKING GAS COMPRESSOR

管道与转动设备连接是在化工装置管道安装中较常见的,比如管道与泵的连接,管道与压缩机组的连接。压缩机吸入/排出管道管径大,配管技术要求高,安装质量及管道内部清洁度要求严格,为避免因管道附着应力对压缩机运行时产生位移或振动,进而影响机器正常运转,所以其连接管道安装时必须进行无应力配管,这点对于压缩机尤为重要。介绍了独山子石化乙烯装置在裂解气压缩机组的配管施工中,采用无应力配管技术取得了成功。通过实践、总结和提炼,论述无应力配管施工工艺技术,并规范其施工方法。

The connection between pipeline and rotating equipment,such as the connection between pipeline and pump and the connection between pipeline and compressor unit,is common in the piping installation of chemical plants.The suction/discharge pipeline of compressor has large diameter,high technical requirements for piping,and strict requirements for installation quality and internal cleanliness of pipeline.In order to avoid displacement or vibration of compressor during operation due to pipeline adhesion stress,which will affect the normal operation,stress-free piping must be carried out during the installation of its connecting pipeline,and this is particularly important for the compressor.In the piping construction of cracking gas compressor unit in the ethylene plant of PetroChina Dushanzi Petrochemical Company,the stress-free piping technology has been adopted successfully.Through practice,summary and refinement,this paper discusses the construction technology of stress-free piping and standardizes its construction method.