The invention discloses an inverted pulling type construction method for a large-diameter gas-phase pipe in a limited area, which comprises the following steps of: aligning and installing the lower section of rectifying tower equipment, installing the upper section of the large-diameter gas-phase pipe on the upper section of the rectifying tower equipment on the ground, and assembling and installing the upper section of the rectifying tower equipment and the lower section of the rectifying tower equipment; and an assembly platform is erected at the reserved welded junction through a support of the gas phase pipe, horizontal transportation and vertical transportation are carried out on the lower section of the gas phase pipe in the limited area by using a winch in a matched mode through an inverted pulling method, and then assembly welding is carried out on the assembly platform erected in advance through an electric hoist. Use of a large crane in the pipeline installation process is avoided, the mechanical cost of construction is greatly reduced, the requirement for a construction site is low, the occupied space is small, and the method is suitable for construction in a limited area.

    本发明公开了一种受限区大口径气相管倒拔式施工方法,先将精馏塔设备的下段找正安装,大口径气相管上段在地面上安装在精馏塔设备的上段,随精馏塔设备上段一起与精馏塔设备下段组对安装,利用气相管的支架在预留的焊口处搭设组对平台,在受限区域内气相管下段配合使用卷扬机运用倒拔的方法进行水平运输及垂直运输,然后利用电动葫芦在提前搭设的组对平台上组对焊接。本发明避免了管道安装过程中大型起重机的使用,大大减少了施工的机械成本,对施工场地要求低,占用空间小,适用于受限区域施工。


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    Title :

    Inverted pulling type construction method for large-diameter gas phase pipe in limited area


    Additional title:

    受限区大口径气相管倒拔式施工方法


    Contributors:
    LIU JIAO (author) / ZHANG ZHIGUO (author) / ZHENG KAI (author) / SHI HANSHENG (author)

    Publication date :

    2024-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B23K Löten , SOLDERING OR UNSOLDERING / B66D Haspeln , CAPSTANS / E04H Gebäude oder ähnliche Bauwerke für besondere Zwecke , BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES



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