Construction method of bulkhead intermediate product of biphasic stainless steel chemical ship

Abstract

The invention discloses a construction method of a bulkhead intermediate product of a biphasic stainless steel chemical ship, and belongs to the technical field of ship construction. The constructionmethod includes the following steps that firstly, a grooved bulkhead welding jig frame is erected on the terrace; secondly, approaching stern faces of grooved bulkhead parts are assembled and welded;thirdly, stern face strengthening parts and transverse overturning devices are installed on agrooved bulkhead; fourthly, approaching bow face strengthening parts are welded and installed on an approaching bow face of the grooved bulkhead; and fifthly, outfitting parts are installed on the grooved bulkhead. According to the construction method of the bulkhead intermediate product of the biphasic stainless steel chemical ship, a constructing idea of the intermediate product is adopted, an inclined ladder platform and a liquid cargo piping system on a bulkhead structure are installed in advance to a segmentation stage, outfitting work is effectively advanced,aloft work is converted into ground work, potential safety hazards are reduced, and the construction speed of bulkhead segmentation is accelerated.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, in particular to a method for building intermediate products of duplex stainless steel chemical tanker compartments. Background technique [0002] Duplex stainless steel chemical tanker is a high-tech ship in the chemical tanker field, and chemical tanker using duplex stainless steel is the development direction of chemical tanker in the future. Duplex stainless steel has high strength and excellent corrosion resistance, which can reduce the weight of the ship and reduce fuel consumption. At the same time, it is difficult to construct a chemical tanker using this material, especially for the trough compartment structure in the cargo tank. Due to its structural form, it is extremely difficult to construct. At present, duplex stainless steel chemical tankers are mainly carried out by the following methods: when building in sections, a large number of reinforcements are used to ensure the stre...

AI Technical Summary

Problems solved by technology

[0003] First, the compartment structure lacks effective reinforcement methods. The existing reinforcement methods are complicated, and a large number of welds are formed between the stainless steel compartment structure, which makes it extremely easy to damage the duplex stainless steel base material during the demolition process.

The reinforced structure cannot be reused, and a compartment structure needs a matching set of reinforced structures, resulting in unnecessary waste of materials

[0004] Second, the installation of outfitting parts is incomplete. During the construction stage of compartment divisions, the inclined ladder and liquid cargo piping system were not installed with the idea of ​​an intermediate product integrating structure and outfitting, resulting in the outfitting parts being left behind. The integrity of intermediate products in the back road is poor, which increases the workload of scaffolding, and the installation work in the back road is a high-altitude operation, which also increases the construction difficulty and safety risks. This construction method greatly affects the segmented outfitting Construction period

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