Because in accordance with different water depths, filled with water hoses in the original design, oil-filled, empty pipe several states, calculation or experimentally derived hose configuration, measurement is to verify whether the hose has been installed according to the design conditions. There should be the effectiveness of the hydraulic system after the completion of the test, debug, tightness and pressure water test and normal operation of the post. Replace single point does not affect production should choose to replace the timing and method, but to prepare a spare buoy prevent accidental general average.
This alternative test to provide certain buoy design information for comparison and original floats, verification, while allowing owners to provide third-party products inspection certificate and documents, whether to finalize the pontoon meet predetermined operating and extreme conditions require. Removal and replacement of hydraulic hose underwater recovery floats carried out as follows the original floating hose disassembling and recycling of mooring and its accessories and maintenance of underwater demolition and removal of the hose hoisting and lifting pontoon relief The new pontoon installation.
Repair and maintenance of single-point mooring system of a single point of long-term immersion in seawater, bearing in unloading oil process, three-arm connecting frame continuously rotating wear, require regular place or into dry dock for maintenance and repair. Summed up a week before the test to check mooring monthly check every six months to check the annual inspection dock inspection and regular inspection and a half years and five years.
Except in special cases, the Society general inspection at least once a year, to check with the owners plan selected sea conditions were relatively good month. Check the focus typically include weld tube structure, the rotating member and the anode block, inspection methods include paint, gauging and NDT.
Thickness measurement sites include the upper deck, bottom, shell plate, bulkhead plate, chain plate, center around well plates, each plate measuring points. Weld do and checking defects, three-arm part for. Easy to wear parts have pontoon rail and wheel, grinding and surfacing. Check the product dispensing device includes a rotating head disassembly seal and bearing lubrication and rotating head and reinstall it. Chain inspection focused on measuring wear chain angle and lying area due to frequent lift and drop anchor caused.
