Ship piping task package type closed loop construction method and system

The invention provides a ship piping system task package type closed-loop construction method and system. The method comprises the following steps of building and determining a piping system model, grouping and decomposing piping system trays, issuing drawings, assembling piping system tray task packages, installing and feeding back the piping system trays, checking the data integrity of the piping system trays and completing delivery. The system comprises a tray data checking and calculating module, a tray data two-stage decomposing and encoding module and a support, valve and piping list matching and installation drawing generating module. The pipe fitting-out efficiency in ship construction can be greatly improved, and the construction period is shortened. According to the invention, a data link of the whole process of design, manufacturing, loading, lightering, centralized distribution and installation of the pipe is established, and the complete installation and delivery of the pipe are effectively track