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Method for installing liquid cargo pump base of duplex stainless steel chemical tank

A technology of duplex stainless steel and chemical tankers, which is applied to ship components, ship design, ship construction, etc., can solve the problems of difficult positioning, welding and fixing of liquid cargo pump bases, etc., to improve construction accuracy, ensure accuracy, and improve The effect of positioning accuracy

Active Publication Date: 2019-04-12
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for installing the base of the liquid cargo pump of a duplex stainless steel chemical tanker, which is used to solve the problem that the base of the liquid cargo pump is difficult to be accurately positioned and fixed by welding

Method used

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  • Method for installing liquid cargo pump base of duplex stainless steel chemical tank
  • Method for installing liquid cargo pump base of duplex stainless steel chemical tank
  • Method for installing liquid cargo pump base of duplex stainless steel chemical tank

Examples

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Embodiment

[0033] Example: such as Figure 1 to Figure 9 As shown, a method for installing the base of a duplex stainless steel chemical tanker liquid cargo pump includes the following steps:

[0034]Step 1. Make a deck hole positioning mechanism, the deck hole positioning mechanism includes a first hole template 1 and a second hole template 2, and the first hole template 1 and the second hole template 2 are both thick It is a circular plate-shaped structure of 6 mm, the inner diameter of the first hole-opening template 1 is 448 mm, the inner diameter of the second hole-opening template 2 is 408 mm, and the first hole-opening template 1 is provided with Four first bolt holes, the second hole template 2 is provided with four second bolt holes, the four first bolt holes correspond to the four second bolt holes respectively, the first hole The template 1 is arranged above the second hole template 2, and the center line of the first hole template 1 coincides with the center line of the seco...

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Abstract

The invention, which belongs to the technical field of ship construction, discloses a method for installing a liquid cargo pump base of a duplex stainless steel chemical tank. The method comprises thefollowing steps: step one, making a deck opening positioning mechanism including a first opening template and a second opening template that are circular-ring-shaped plate structures with the thicknesses of 6mm; step two, determining the center of a deck opening on the deck; step three, placing the deck opening positioning mechanism on the deck; step four, carrying out opening on the deck by using a cutting machine; step five, installing a liquid cargo pump base, hoisting the liquid cargo pump base at the deck opening, enabling indication laser of a laser plumb aligner to pass through the central point of a liquid cargo cabin bottom suction well; step six, locating and welding the deck and the liquid cargo pump base; and step seven, welding and fixing the deck and the liquid cargo pump base. With the method disclosed by the invention, a problem that the liquid cargo pump base cannot be located, welded and fixed accurately is solved.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, in particular to a method for installing a liquid cargo pump base of a duplex stainless steel chemical tanker. Background technique [0002] There are many cargo tanks of duplex stainless steel chemical tankers, which are independent of each other, and can load and unload multiple liquid cargoes at the same time. In order to avoid mutual contact and pollution between cargoes, each cargo tank is equipped with independent liquid cargo pumps and independent loading and unloading piping systems. [0003] Before the installation of the liquid cargo pump, the base of the liquid cargo pump needs to be installed. The height of the base is 500mm, and the height from the upper surface of the base to the upper surface of the oil suction well at the bottom of the liquid cargo tank is 10000mm. After the base is installed, its center line extends to the center point of the oil suction well , the deviation...

Claims

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Application Information

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IPC IPC(8): B63B25/08B63B17/00B63B9/00
CPCB63B17/00B63B25/08B63B71/00
Inventor 方汇
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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