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A method for sealing test and sealing of half-ship floating stern shaft hole or seabed valve box

A submarine valve box and stern shaft technology, which is applied in ship construction, ship design, ship parts, etc., can solve problems such as damage to the steel castings in the stern shaft hole or the outer bottom plate, inconvenient recycling of the sealing plate, and increased ship construction costs. The effect of welding workload, saving labor costs, and reducing the workload of carbon planing and grinding

Active Publication Date: 2019-06-11
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of ship construction, it is necessary to seal and seal the half-ship floating stern shaft hole or the tight through hole of the seabed valve box. The bottom plate is directly welded for sealing (e.g. figure 1 shown), when using this sealing method, the welding workload is large, the follow-up dismantling process is many, the carbon planer grinding workload is large, and it is easy to cause damage to the steel casting of the tail shaft hole or the outer bottom plate. The removed sealing plate is inconvenient to recycle, and the workload Large and inefficient on-site construction increases the cost of shipbuilding. How to reduce shipbuilding costs and improve construction efficiency is a difficult problem in the process of shipbuilding

Method used

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  • A method for sealing test and sealing of half-ship floating stern shaft hole or seabed valve box
  • A method for sealing test and sealing of half-ship floating stern shaft hole or seabed valve box
  • A method for sealing test and sealing of half-ship floating stern shaft hole or seabed valve box

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Embodiment 1

[0025] like figure 2 , 3 As shown, the present embodiment provides a method for sealing test plugging of a semi-vessel hoisting stern shaft hole or a submarine valve box, including the following steps:

[0026] 1) Mark lines for installing bolts on the rear end face 2 of the stern shaft hole or the outer bottom plate of the subsea valve box, and install several screws 4 according to the positions of the marked lines;

[0027] Preferably, the screw 4 is welded and fixed on the rear end face 2 of the tail shaft hole or the outer bottom plate of the subsea valve box by means of stud welding, so as to ensure the reliability of the connection.

[0028] 2) select the blanking material of steel plate to make the blocking plate 3 for blocking the tail shaft hole or the subsea valve box, and open the bolt hole corresponding to the screw 4 on the outer periphery of the blocking plate 3;

[0029] 3) Draw a marking line on the blocking plate 3 according to the size of the aperture of t...

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Abstract

The present invention relates to the technical field of shipbuilding, in particular to a sealing method for a half-ship floating stern shaft hole or a seabed valve box. By optimizing the connection between the sealing plate and the hull from a welded type to a bolt-detachable type, this sealing The plugging method reduces the workload of welding and carbon planing and grinding when the sealing plate is installed, reduces the damage to the cast steel part (outer bottom plate) of the tail shaft hole, improves the installation efficiency, and the recycled sealing plate and watertight rubber can be repeated after use. Utilization; reduce costs, save material costs such as welding consumables, carbon rods, and grinding discs, and save labor costs.

Description

technical field [0001] The invention relates to the technical field of ship construction, in particular to a method for sealing test and plugging of a half-ship floating stern shaft hole or a submarine valve box. Background technique [0002] During the construction of the ship, it is necessary to seal the half-ship floating stern shaft hole or the through hole of the subsea valve box. The bottom plate is directly welded to seal (such as figure 1 When this plugging method is adopted, the welding workload is large, the subsequent dismantling procedures are many, and the carbon planing grinding workload is large, which is easy to cause damage to the tail shaft hole steel casting or the outer bottom plate, and the dismantled sealing plate is inconvenient for recycling. It is large and the on-site construction efficiency is not high, which increases the ship construction cost. How to reduce the shipbuilding cost and improve the construction efficiency is a difficult problem fac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B9/00
CPCB63B71/00
Inventor 周顺练博强
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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