Installation method of deep well pump suitable for ballast tank coating protection requirements

Abstract

The invention discloses a deep-well pump installation method suitable for ballast tank coating protection requirements. The installation method comprises the steps that pre-installation of a bottom support (5) and middle supports (4) of equipment is conducted when a ship hull is sectioned; after the ship hull folds and enters the water, positioning installation of middle seat rings (3) and a deck seat ring (2) is conducted in sequence in a positioning mode from bottom to top through taking the installation position of the bottom support as a standard, and the middle seat rings are positioned on the middle supports and the bottom support; the installation of a deep-well pump (1) is conducted after the second step. By means of the deep-well pump installation method suitable for the ballast tank coating protection requirements, on the premise of guaranteeing the installation accuracy requirements of the deep-well pump, the construction procedures of the bottom support and the middle supports of the deep-well pump are effectively moved to the procedure before the ship hull folds and enters the water, the welding of the bottom support, the middle supports and the ship hull after the ship hull folds is avoided, and the influence of the damage on the ballast tank coating is reduced.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, and more specifically, relates to the installation of deep well pumps of ships. Background technique [0002] Under the existing technology, such as figure 1 and 2 As shown, the installation process of the deep well pump 1 is based on the coordinates of the opening of the main deck seat ring 2, and the laser alignment template is used for positioning from top to bottom, and the positioning and installation of the middle support and the bottom support are carried out respectively. The middle support and the bottom support are both A mirror is needed to reflect the laser light emitted by the laser on the deck seat to ensure levelness. The deep well pump is installed after the positioning and installation of the deck seat ring, intermediate support and bottom support structure to ensure the installation accuracy. Since the installation accuracy of the deep well pump 1 is extremely high (usua...

AI Technical Summary

Problems solved by technology

[0005] 2. In the prior art, the deep well pump installation method will destroy the coating of the ballast tank and cargo tank due to the back structure strengthening caused by the support welding and support alignment error in the closing stage, which cannot meet the requirements of the ballast tank coating protection specification

[0006] Due to the implementation of the IMO Ballast Tank Protective Coating Standard (PSPC), when deep well pumps are used in ships and offshore engineering, the traditional deep well pump installation method will damage the coating of the ballast tank during the installation of the deep well pump, affecting Integrity of the coating

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