The utility model discloses a non-metal expansion joint for catalytic cracking, which includes a hose, each end of the tube is connected to one end tube, and the outer wall of the end pipe is provided with a limit circle, a plurality of limiting screws are connected between the limit rings, each sleeve in the end pipe is connected with an extension tube, the extension tube is threaded with the end pipe, and the ends of the extension pipe are connected. One flange, the tube wall of the hose is a multi-layer structure, including the stainless steel screen layer in the center, the PTFE plastic layer on the outside of the stainless steel screen layer, and the oil resistant anticorrosion layer on the inner side of the stainless steel screen layer. The non-metallic expansion joint hose of the utility model contains three layers, and the stainless steel screen layer in the middle can make the hose have greater strength and toughness. The PTFE plastic layer is soft and not chapped. The most inner oil resistant anticorrosion layer can effectively prevent the corrosion of the oil in the pipe from the expansion joint. The oil resistant coating is also the same. It also has high temperature resistance, thus effectively prolonging the service life of expansion joints.
【技术实现步骤摘要】
催化裂化用非金属膨胀节
本技术涉及一种膨胀节,更确切地说,是一种催化裂化用非金属膨胀节。
技术介绍
催化裂化是石油二次加工的主要方法之一。在高温和催化剂的作用下使重质油发生裂化反应,转变为裂化气、汽油和柴油等的过程。主要反应有分解、异构化、氢转移、芳构化、缩合、生焦等。与热裂化相比,其轻质油产率高,汽油辛烷值高,柴油安定性较好,并副产富含烯烃的液化气。催化裂化用非金属膨胀节需要长期在高温高油环境下使用,一般的非金属膨胀节的软管耐高温耐腐蚀性较弱,用于催化裂化的环境下软管容易腐蚀,使用寿命较短。
技术实现思路
本技术主要是解决现有技术所存在的技术问题,从而提供一种催化裂化用非金属膨胀节。本技术的上述技术问题主要是通过下述技术方案得以解决的:一种催化裂化用非金属膨胀节,包含一软管,软管的两端各连接一端管,端管的外壁各设有一限位圈,限位圈间连接多根限位螺杆,端管内各套接一延伸管,延伸管与端管间为螺纹连接,延伸管的末端各连接一法兰,所述软管的管壁为多层结构,包含位于中心的不锈钢丝网层,不锈钢丝网层的外侧设有PTFE塑料层,不锈钢丝网层的内侧设有耐油防腐层;所述耐油防腐层的制备方法 ...
【技术保护点】
一种催化裂化用非金属膨胀节(1),其特征在于,包含一软管(10),软管(10)的两端各连接一端管(41),端管(41)的外壁各设有一限位圈(20),限位圈(20)间连接多根限位螺杆(30),端管(41)内各套接一延伸管(42),延伸管(42)与端管(41)间为螺纹连接,延伸管(42)的末端各连接一法兰(50),所述软管(10)的管壁为多层结构,包含位于中心的不锈钢丝网层(11),不锈钢丝网层(11)的外侧设有PTFE塑料层(12),不锈钢丝网层(11)的内侧设有耐油防腐层(13)。
【技术特征摘要】
1.一种催化裂化用非金属膨胀节(1),其特征在于,包含一软管(10),软管(10)的两端各连接一端管(41),端管(41)的外壁各设有一限位圈(20),限位圈(20)间连接多根限位螺杆(30),端管(41)内各套接一延伸管(42),延伸管(42)与端管(41)间为螺纹连接,延伸管(42)的末端各连接一法兰(50),所述软管(10)的管壁为多层结构,包含位于中心的不锈钢...
【专利技术属性】
技术研发人员:姜爱荣,
申请(专利权)人:江苏长风波纹管有限公司,
类型:新型
国别省市:江苏,32
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