HDPE 5621D--中海壳牌石油化工有限公司, (CNOOC and Shell petrochemical companylimited, 简称 CSPC), 成立于2000年,在广东省惠州市大亚湾经济技术开发区建设并运营一规模的石化联合工厂。中海壳牌石化联合工厂采用世界上Zui先进的工艺技术及与国际接轨的管理模式进行设计、施工和运营,大多数生产装置具有规模。它通过国际招标引进了13项专利技术,在同行业中保持技术领先地位。公司秉承可持续发展理念,采取各种措施保护当地环境,并通过支持当地文教、卫生和公益事业的发展,为当地经济、社会的和谐、进步做出贡献。工厂的主要设施包括11套生产装置和蒸汽、发电等公用工程设施、储运设施以及环保设施。工厂的核心是一套可年产95万吨乙烯和50万吨丙烯的乙烯裂解装置。中海壳牌石化联合工厂每年生产270万吨石化产品,主要是乙烯和丙烯的衍生产品,供应中国
The outer wall of HDPE pipe has a circular corrugated structure,which greatly enhances the circular stiffness of the pipe and thusenhances the resistance of the pipe to soil load. Frictioncoefficient is small. Strong passing ability. The internal frictioncoefficient of HDPE pipe is 0.O09, and that of reinforced concretepipe is 0.013. Therefore, HDP pipes can pass through a larger flowrate than other pipes of the same caliber. In other words, underthe same flow rate, HDPE tube with smaller diameter can be used.The construction is convenient. Because of its light weight,convenient handling and connection, HDPE pipe has a fastconstruction speed. In the case of tight construction period andpoor construction conditions, its advantages are more obvious. Goodchemical stability and long service life. HDPE molecule has nopolarity, so it has good chemical stability. In general, thefactors such as soil, electricity, acid and alkali in theenvironment will not damage the pipeline. In the case of burial,the service life of HDPE tube can be more than 5 years.
HDPE中空缠绕结构壁管它是一种以HDPE为原料生产矩形管坯,经缠绕焊接成型的一种管材。由于其独特的成型工艺,可生产口径达3000mm的大口径管材,这是其他生产工艺难以完成甚至于无法完成的。此种管材与双壁波纹管在性能上基本一致,管道连接主要采用热熔带连接方式,连接成本较双壁波纹管略高;该管的一个主要缺点是在同样直径和达到同样环刚度下,一般要比直接挤出的双壁波纹管耗费更多的原材料,其生产成本较高。具体施工方法由于HDPE管为新型管材,没有统一的相关标准供参考,结合生产厂家提供的资料和施工实践,谈一谈缠绕结构壁管热收缩套连接的做法,工艺流程:沟槽开挖-施工排水一管道基础施工试验一回填挖开挖沟槽应根据施工现场环境、槽深、地下水位高低、土质情况、施工设备及季节影响等因素综合考虑选定。