Integral dismantling system based on semi-submersible multifunctional transportation dismantling ship and operation method of integral dismantling system

Abstract

The invention discloses an integral dismantling system based on a semi-submersible multifunctional transportation dismantling ship. The system comprises a preassembling and disassembling tool piece installed below an upper module to be disassembled, a butt joint module and a buffering and positioning module, the butt joint module and the buffering and positioning module are arranged on a ship body, the butt joint module is composed of an adaptive dismounting supporting arm and a butt joint buffer female cone, a base of the adaptive dismounting supporting arm is fixed to a deck, and the butt joint buffer female cone is fixed to the top of the adaptive dismounting supporting arm. The buffering and positioning module comprises a fender, a transverse fender and a longitudinal fender. The invention further discloses an integral dismantling operation method based on the semi-submersible multifunctional transportation dismantling ship. The system and the method have beneficial effects that needed auxiliary tool pieces are small in weight and high in universality, and deck preparation is simple and flexible; the requirement for structural transformation of the upper module is low, and a total workload of offshore construction preparation is low; and advantages of high construction efficiency and low construction cost are possessed.

Description

technical field [0001] The invention relates to the technical field of semi-submersible ships, in particular to an overall dismantling system based on a semi-submersible multifunctional transport and dismantling ship and an operation method thereof. Background technique [0002] The dismantling of old offshore platforms can usually be carried out by adopting the reverse process of its installation. At the end of the 20th century, most of the upper modules of offshore fixed platforms were hoisted by sub-modules and installed in the form of an overall combination at sea. This installation method takes a long time and has low operating efficiency. Correspondingly, the dismantling method of its reverse process also has the same problem. [0003] With the improvement of the operation capacity of offshore construction equipment and the emergence of new equipment and new technologies, the overall demolition has become possible and the efficiency has been improved. The existing ov...

AI Technical Summary

Problems solved by technology

However, the price of super-large floating crane equipment is high, and it is difficult to dispatch it in the ocean, and the cost is extremely high

In addition to the high cost of the hull of the permanent catamaran dismantling ship, the cost of supporting dismantling mechanisms, such as hydraulic support arms and adjustable cantilever counterweights, is also very high. At the same time, it is highly dependent on the dismantling market , low ability to resist market risk

However, the temporary combined catamaran dismantling ship has defects such as complex engineering design, long preparation time at sea, and many sea resources that need to be mobilized.

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