New progress in the pre-installation of the ground of Dalian Shipai main pipe system

In the past, the installation procedure of the exhaust side piping system of the main engine was: firstly, the pipe brackets were assembled one by one to the scavenging air box body, and then the pipe fittings were assembled one by one to the pipe brackets according to the drawing sequence. Four brackets and six pipe fittings are installed, and the crane is required to be transported back and forth 10 times. Each lifting assembly process requires the construction personnel to move back and forth on the scavenging air box, command and adjust the crane, determine the positioning size, and finally complete the assembly.

This construction method not only has a long assembly cycle and a long time for occupying crane resources, but also has potential safety hazards. To this end, the assembly technicians conduct on-site ground pre-installation feasibility analysis, prepare planning plans, refine the process division, and improve the piping assembly process. On-site guidance to the construction personnel, in accordance with the assembly process rules, after the line is positioned on the ground, the pipe bracket, pipe fittings and valve parts are accurately assembled and assembled one by one, and then hoisted. Not only greatly saves the crane resources, but also shortens the piping assembly cycle and effectively prevents the paint from being damaged due to bumping during the assembly process, ensuring the quality of the pipe fittings, and also reducing the installation of the large pipes on the cylinders one by one. Security Risk.

In order to meet the requirements for the expansion of prefabricated construction nodes on the ground of the pipeline system, the company has set up a prefabricated area for pipe fittings in the second district of the assembly and manufacturing department, and proposed regional palletization supply requirements for suppliers, clearly identifying the contents and storage status, and preventing construction workers. Because the workpiece is found or the quality of the pipe is affected by the secondary landing. Next, the company will further promote the expansion of the prefabrication of the pipeline system and gradually extend the accumulated experience to the pre-installation of components such as the platform support.