KR20090003615A - Method of constructing ship on the ground - Google Patents

Abstract

A method for constructing a ship on the ground is provided to minimize the period and work area for constructing a ship such as a drill ship or oil drilling ship for of FPSO(Floating Production Storage & Offloading) unit. A method for constructing a ship on the ground comprises a step of assembling hull blocks forming the stem and hull blocks forming the stern and, after the deck of the stem and the stern is assembled, setting up a top side module on the deck(S200), a step of moving the stem forward and the stern behind the stem by using skidding system and/or APS(Air Pad System) when the installation of the stem is completed(S300), and a step of connecting the stem and the stern(S400).

Description

Method of constructing ship on the ground

The present invention relates to a ship construction method on land, and more specifically to a special ship for oil drilling, such as a drill-ship or floating production storage & offloading unit (FPSO). In construction, by simultaneously assembling and installing the hull and the topside module on land, it is possible to minimize the construction period of the vessel while using a minimum working area.

In addition, by using the land rather than the dock (Dock), by minimizing the cost of shipbuilding.

In general, the shipbuilding industry, which begins with the order of the ship and is designed, built, and delivered, the profitability of the business in the process depends on the survival and success of the industry.

An important factor in determining profitability is productivity in shipbuilding, and all shipbuilding industries are competing to improve this productivity.

For this reason, various ship construction methods have been developed, and recently, block construction methods have emerged.

The block drying method is a method of first dividing the hull into dozens or hundreds of blocks, assembling the individual blocks on the ground, and assembling them into a hull by sequentially mounting the produced blocks on the ship's fleet.

More specifically, first of all, according to the shape of the block is the most efficient factory in the most efficient method of painting the finished blocks, and the finished blocks are combined by a few blocks. This work of combining several blocks into one is called PE (Pre-Erection) work.

Since the PJ operation can pre-assemble several small blocks into one medium or large block and mount them at once, it is possible to reduce the time required for the ship's construction and increase production and work efficiency.

After the piercing operation, each hull block is made of a large hull block or moved to a dock to be built into one ship.

Meanwhile, in the case of special ships for oil drilling, such as a drill-ship or floating production storage & offloading unit (FPSO), the topside for oil drilling on the deck The TopSide Module is installed.

Looking at this in more detail, the large blocks assembled through the blood work are moved to the dock to be assembled into a hull, the topside module is assembled on the land of the quay wall. Thereafter, the hull assembled in the dock is moved to the inner wall, and then the landside assembled topside module is installed on the deck of the hull.

However, when the topside module is assembled on the land of the quay, it requires a larger working area than the deck area of the hull, and the dock and the quay on the land must be used at the same time to build one special ship. As a result, the double utilization of the workshop results in low space utilization for shipbuilding.

In addition, due to the increase in ship construction cost by assembling the hull in the dock, and the increase in ship construction period by installing the topside module by moving the hull assembled in the dock to the inner wall, productivity and competitiveness of the ship to be built is increased. There was a problem of deterioration.

In order to solve the above problems, the present invention, in the construction of a special ship for oil drilling, such as a drill-ship or floating production storage and offloading unit (FPSO), the hull By assembling and installing the side and top side modules at the same time, the purpose is to provide a ship construction method on land that can minimize the construction period of the vessel as possible using the minimum working area.

In order to achieve the above object, the ship construction method on the land according to the present invention, a) assembling the hull block forming the hull part of the ship and the hull block forming the stern part, respectively, the deck and the stern part deck (Deck) When is assembled, installing a Top-Side Module (Module) on the deck; b) when the installation of the topside module is completed, moving the fore part to the front, and moving the stern to the rear of the fore part; And c) assembling by connecting the bow and the stern.

Through the above solutions, the present invention in the construction of special ships for oil drilling, such as drill ships and floating crude oil production storage and unloading facilities (FPSO), by simultaneously assembling and installing the hull and the top side module onshore, It is possible to build a ship by using a minimum working area, as well as to shorten the construction period of the ship as much as possible.

In addition, in drying a special ship for oil drilling, it is possible to minimize the cost of drying the ship by drying by using land rather than using a dock (Dock).

In particular, even in small and medium-sized shipyards that do not own a dock, it is possible to build a special ship for oil drilling, as well as to increase productivity and competitiveness in the construction of a special ship for oil drilling.

An example of a ship construction method on land according to the present invention can be variously applied, and hereinafter, the most preferred embodiment will be described with reference to the accompanying drawings.

1 is a flow chart showing an example of a ship construction method on land according to the present invention.

First, the small blocks manufactured according to the shape of the blocks and finished with the painting are combined into medium or large blocks in a PE (Pre-Erection) workshop 300 shown in FIG. 3A.

Then, the combined medium or large block is assembled into hull blocks constituting the bow portion and the stern portion in the adjacent land using the Goliath crane 400 or the marine crane (not shown) moving along the rail 410 (S100). ), When the deck and the stern portion deck (Deck) is assembled, using the goliath crane 400 or the marine crane to install the top-side (Top-Side) module installed on the deck (S200), respectively.

Here, the topside module includes MUD MODULE, DRILL FLOOR, EWT AREA, R / STORAGE, DERRICK, etc. according to the purpose of the corresponding vessel to be built, the configuration, combination and installation location of the topside module is required by those skilled in the art Various modifications are possible depending on the type.

In addition, the combination of the hull block and the installation order of the topside module can be assembled and installed in various orders according to the needs of those skilled in the art, but in order to shorten the ship construction period and minimize the work area required during construction, certain parts When the coupling of the hull block is completed, while installing the topside module is installed on the deck of the hull block, it is extended to the hull block coupled to perform the combination of other hull blocks.

For example, in the construction of the bow portion 100 of the ship as shown in Figure 2a, the first bow portion hull block 111 is assembled by combining the blocks moved from the bloody workshop 300 by the goliath crane 400 When installed, the first bow topside module 121 is installed on the deck (unsigned) of the first bow hull block 111.

When the installation of the first bow topside module 121 is completed, the second bow hull block 112 is coupled to one side of the first bow hull block 111, and the second bow hull block 112 is connected thereto. ) Is assembled, the second bow topside module 122 is installed on the deck (unsigned) of the second bow hull block 112.

When the installation of the second bow topside module 122 is completed, the third bow hull block 113 is coupled to one side of the second bow hull block 112, and the third bow hull block 113 is connected thereto. ) Is assembled, a third bow topside module 123 is installed on the deck (unsigned) of the third bow hull block 113, and the bow of the corresponding ship is built.

In the same manner as described above, in drying the stern portion 200 of the ship, as shown in Figure 2b, when the first stern hull block 211 and the second stern hull block 212 is connected, The first stern topside module 221 is installed on the deck (unsigned) of the first stern hull block 211 and the second stern hull block 212.

When the installation of the first stern portion topside module 221 is completed, a third stern portion hull block 213 is connected to one side of the second stern portion hull block 212, and a third stern portion is provided. When the hull block 213 is assembled, a second stern topside module 222 is installed on the deck (unsigned) of the third stern hull block 213 to dry the stern of the vessel.

In the construction of the bow portion described above, the first bow portion topside module 121 and the second bow portion hull block 112, the second bow portion topside module 122 and the third bow portion hull block 113 at the same time No wonder you can do it.

When the bow portion and the stern portion are completed drying as described above, as shown in Figure 3a, moves the bow portion 100 to the front. At this time, the bow portion 100 is moved forward by using a skidding system (Skidding System) for sliding movement using a wire or the like, and then, the stern portion 200 is moved to the bow portion 100 using an APS (Air Pad System). Move to the rear of (S300). The method and system for moving the bow portion 100 and the stern portion 200 are not limited to the skidding system and the APS.

When the stern portion 200 is moved to the rear of the bow portion 100 by the above method, as shown in FIG. 4, the bow portion 100 and the stern portion 200 are connected to each other, and the bow portion 100 as shown in FIG. 4. And the vessel connected to the stern 200, the barge (Barge) to move to the sea using a ship and then performs the finishing process to dry the corresponding vessel.

Therefore, for the top side module to be installed on the bow portion 100 and the stern portion 200 and the respective decks, by installing the topside module simultaneously with the hull block coupling of the bow portion 100 and the stern portion 200, It is possible to shorten the drying period of special ships such as drilling vessels and minimize the work area required for drying.

The ship construction method on land by the present invention has been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and the equivalent concept should be construed as being included in the scope of the present invention.

1 is a flow chart showing an example of a ship construction method on land according to the present invention.

2A and 2B are diagrams illustrating an example of steps S100 and S200 of FIG. 1.

3A and 3B are diagrams illustrating an example of step S300 of FIG. 1.

4 is a view illustrating an example of a ship constructed by FIG. 1.

<Explanation of symbols for the main parts of the drawings>

100: bow part 111: first bow part hull block

112: hull block of second bow section 113: hull block of third bow section

121: first side portion topside module 122: second side portion topside module

123: third bow portion topside module 200: stern

211: first stern hull block 212: second stern hull block

213: third stern hull block 221: first stern top side module

222: second stern portion topside module 300: PUI workshop

Claims (4)

a) Assembling the hull block forming the bow part of the ship and the hull block forming the stern part respectively, and if the deck and the stern part deck are assembled, a top-side module is installed on the deck. Doing; b) when the installation of the topside module is completed, moving the fore part to the front, and moving the stern to the rear of the fore part; And c) A method for building a ship on land, comprising assembling by connecting the bow and stern. The method of claim 1, Step a) is a-1) when the deck of any one of the hull block of the at least one hull block constituting the bow and stern is assembled, the step of installing a topside module corresponding to the deck, a-2) when the other hull block of at least one hull block constituting the bow portion and the stern part is connected and assembled with any one of the hull blocks, and the deck of the other hull block is assembled, the other hull Ship construction method on land comprising the step of installing a topside module corresponding to the deck of the block. The method of claim 1, Step a) is a-1) When the deck of any one of the hull block of the at least one hull block constituting the fore part and the stern part is assembled, at least one of forming the top side module corresponding to the deck, and at least one Connecting and assembling the other hull block of the hull block with any one of the hull blocks; a-2) When the deck of the other hull block is assembled, while installing a topside module corresponding to the deck of the other hull block, at least one of the at least one hull block constituting the bow and stern Ship construction method on land comprising the step of assembling one of the hull block and any one of the hull block. The method according to any one of claims 1 to 3, Step b), b ') When the installation of the topside module is completed, by using at least one of the skidding system (Skidding System) and the APS (Air Pad System), the fore part is moved to the front, the stern is characterized in that to move to the rear of the fore part Ship construction method on land.

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