Closure method for large-diameter ultra-long HDPE pipeline

• Main Authors: ZUO HUANAN, GAN SHIXING, HUANG ZIXIONG, HU HANQING, XU YUNFEI, ZENG FAN, XUE LINHU, FENG ZHENZHOU, LIU KAI, WU KAI
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2021
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a closure method for a large-diameter ultra-long HDPE pipeline. After a construction platform completes welding of a pipeline and a telescopic joint, the pipeline enters water,the telescopic joint is pulled and lengthened to be attached to a pipe opening through a chain block, and pipeline closure installation is completed. By means of the method, the pipe opening can be accurately connected in a butt joint manner, consistency and attractiveness of pipeline materials and the appearance are guaranteed, in addition, the required manpower and material resources are less,so that the production cost is low, and the operability is high. 本发明公开了一种大直径超长HDPE管道合龙方法，在施工平台完成管道和伸缩节的焊接后，进而管道下水，通过手拉葫芦牵引拉长伸缩节至管口贴合完成管道合龙安装，该方法能精确对接管口，并且保证了管道材料以及外形的一致性和美观，并且所需人力和物力较少，保证了生产成本小、可操作性高。