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为了满足甬沪宁原油管线及未来中石化管道储运事业发展的需要 ,研制了ZYW— 76 2型中频加热液压弯管机。详述了该型弯管机的工作原理及主要装置的组成、作用和结构特点 ,并对研究开发过程中出现的问题 ,如推进系统的设计、液压系统的控制以及与弯管质量密切相关的重要参数的控制等做了详细的阐述。实践证明 ,该弯管机所生产的弯管弯曲段的椭圆度、弯曲角度偏差、端面坡口度等技术指标均符合标准要求 ,产品质量可靠 ,完全能满足管道储运工程建设的需要。
In order to meet the needs of Ningbo-Shanghai-Nanjing crude oil pipeline and the future development of Sinopec pipeline storage and transportation business, ZYW-76 2 medium frequency heating hydraulic pipe bender was developed. The working principle of this type of pipe bender and the composition, function and structure of the main device are described in detail. The problems in the process of research and development, such as the design of propulsion system, the control of hydraulic system and the quality of the pipe are closely related Important parameters of the control made a detailed description. Practice has proved that the elbow produced by the bending machine bending ellipticity, bending angle deviation, the edge of the groove and other technical indicators are in line with standard requirements, product quality and reliable, fully able to meet the needs of pipeline storage and transportation projects.