JPS6177585A - Main engine replacing technique for ship - Google Patents

Abstract

PURPOSE:To simplify replacing work by constructing the hull section of an engine room in which a new main engine is mounted using an existing hull section, removing the engine room section, while leaving the stern accommodation space of the hull delivered in a dock, and inserting the new machine room hull section. CONSTITUTION:To replace a main engine for a ship with an engine room at the lower part of the accommodation space structure on the deck of the hull, a new main engine 11 and a hull structure 12 are previously built in a dock using an existing hull section 10. The hull 19 in which the main engine is replaced with new one is delivered in a dock 20 and an engine room hull section 16 including a main engine 14 is cut and removed while an accommodation space structure 15 and the upper section 17 of an engine room 13 are left behind as the structural material for reinforcement during work. Then a new construction section is inserted and joined. When replacing work is performed, the amount of steel material to be used can be reduced and the whole work period can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for performing retrofitting work on gray machinery in a ship having an engine room below the accommodation structure.

[Conventional technology]

Conventionally, when carrying out work to replace the main engine of a ship with a living quarters structure above the engine room, the fourth
As shown in the figure, the main hull is equipped with a platform, a new main engine, a passenger room, a living quarters structure above the engine room, etc., and a new hull section 1 is pre-built with various types of armoring.

Then, the ship whose main body is to be re-engraved is docked, and the main body (hull part 2, which includes the engine room and living quarters structure, etc., is separated from the bow part 3 and the stern part 4, By injecting water into the dock, these hull parts 2, bow 3, and stern part t will be floated, and the newly built hull parts I and 2 will be floated.
Replace with.

Next, again the hull part 1. The ship's stern section 3 and stern section ↓ will be docked and joined together to complete the main engine conversion work.

[Problem that the invention seeks to solve]

However, in the conventional main replacement work method as mentioned above, the main (somewhat) is provided (there is a living quarters structure above the open room, and the hull part that includes not only the engine room but also the living quarters structure) In order to newly build 11, a large amount of new steel material is required, and space is required to newly build hull part 1, which increases the scope of hull modification work SV-, and requires a large amount of bulk work and planting work. There is a problem with this.

In addition, the weight of the newly built hull section 1 is larger, and when replacing the newly built hull section 1 with the hull section 2, work such as loading and unloading the hull sections 1 and 2 is complicated, and it is difficult to carry out these operations. Since reinforcement work is required for the construction, the construction period will be longer and the amount of work will be large.

The present invention aims to solve these problems, and therefore, when replacing the main engine of a ship, cutting of the feeder, 4i meeting,
To provide a method for replacing the main rock of a ship, which eliminates the need for complicated docking and docking work for replacement work, makes the hull part to be replaced smaller, and reduces the amount of labor required.

[Means for solving problems]

For this reason, the main construction method of the present invention is to provide a living quarters structure on the upper deck of the ship's hull, and to reduce the number of spaces for ships that have several openings below the living quarters ditch. When carrying out the conversion work, in advance, an existing hull part of a ship other than the above-mentioned ship was used in the tonk, and a new ship was built on the existing hull part to create an open-chamber hull part. Then, the ship to be replaced was moved into the tonk, and the structure of the living quarters and the upper part of the engine room of the ship were left as structural materials for reinforcement during the construction work. Cut the engine room hull part containing the Nishina from the ship's hull and remove it from the side, and then insert the newly prepared engine room hull part including the new one into the ship from the side. The 41 characteristics include fitting and fixing.

[For production]

In the above-mentioned ship main engine replacement method of the present invention, only the main engine room hull section including the main engine room is replaced with the existing engine room hull section including the new engine room. It is lighter in weight, eliminates the need for complicated work such as entering and exiting drains, and allows for easier retrofitting work.

〔Example〕

Hereinafter, the main body of a ship as an embodiment of the present invention will be explained with reference to the drawings.
To explain the H'A installation method, Figure 1 is a plan view to explain the method, Figure 2 is a side view, and Figure 3 is a side view.
The figure is a sectional view taken along the line ■-■ in FIG.

As shown in FIGS. 1 to 3, in a ship that is provided with a living quarters structure j5 on the upper deck of the hull 19 and an engine room 13 below this living quarters structure 15, the main engine 14 in the engine room 13 is When carrying out retrofitting work, one ship19
Before docking in the dock 20, the new Iso 11 and related ant fittings (not shown) are installed on the existing hull of another Qg vessel having the hull 19 to be modified in advance in the tonk 2 () and a shelled hull. etc., the main (f = 1 for several replacements)
By evoking the corresponding modified hull structure 12, a somewhat open hull section 10 is constructed.

Then, the hull 19 of the ship to be converted is rotated and installed in the dock 20, and the accommodation structure 15, the upper part 17 of the engine room 13, and one side part 18 of the engine room 13 are installed.
The engine room hull section 16 including the main engine 14 is cut from the hull 19 so as to remain as a reinforcing structural material during construction. Thereafter, the b-opening hull portion 16 is pulled out toward the side opposite to the side portion 18 of the engine room, moved toward the bow, and removed.

Next, the engine room hull section 10 including the new main engine 11 and related accessories, etc., which was built in advance to match the cut engine room hull section 16 in the dock 20, is removed from the engine room hull section 16 of the hull 19. It is fitted into the position from the side of the hull 19 and fixed.

After joining the newly built engine room hull section 10, the hull 19
The hull section 16 which was removed (open hull section 16) will be floated and docked, the necessary A maintenance work will be carried out on the hull 19, and the main engine replacement work will be completed.

If necessary, by removing the main engine 14 and the attached fittings from the removed engine room main part 16, the engine room hull part 16 can be used for the main part of the ship (replacement work). 6 By using a double construction method, it is possible to use the existing hull section of another ship as a new engine room hull section 10.
Since there is no need to newly build the A-room hull section 10, the amount of new steel used is significantly reduced. There is no need to use another location, and the preparatory work period is further shortened.

(After the hull section 1 (3) has been removed, only the upper part 17 and the side part 1 of the engine room 13 left in the ship 1409 support the accommodation structure 15 above them, and The upper part 17, the side part 18, and the main section ditch 15 act as reinforcing structural members, ensuring the structural strength of the hull 19 during construction, making reinforcement of the hull 19 unnecessary.

In addition, since the hull part to be removed does not include the living quarter structure 15 and only the deployment room hull part 16, its weight is light and jj
jj Removal of the open room hull 6 and installation work of the engine room hull part 10 including the civilian 11 and related accessories, etc. f
” It can be easily carried out in Yuri 2 (2), and there is no need to carry out work such as clearing the hull 19° (the cabin hull section 1G and the newly built engine room hull section 10), which was done in the past. ) (The scope of wood remodeling work will be significantly reduced.

In addition, by diverting the hull section 16 of the Houma chamber, which was removed as necessary, to the main 1 remodeling work of 119 ships,
Construction leftover materials can be used effectively.

In addition, if necessary, the upper part 17 of the engine room. Reinforcement work may be performed on the side part 18 of the engine room, etc.

〔Effect of the invention〕

As detailed above, according to the ship main engine replacement method of the present invention, a living quarters structure is provided on the upper deck of the ship, and
Regarding ships with an engine room below the accommodation structure,
When carrying out work to replace the main engine, the engine room hull section was built in advance by using the existing hull section of a different vessel than the above-mentioned vessel in the tonk and installing a new section on the existing hull section. After that, the ship to be replaced with the main hull was moved into the tonk, and the living quarters structure and the upper part of the cabin were left as structural members for reinforcement during construction. Then, cut the engine room hull part containing the main (() from the hull and remove it to the side, and then attach the engine room hull part including the newly prepared rock above to the hull from the side. The following effects and advantages can be obtained by a simple method of fitting and fixing.

(+) The existing hull section of another ship can be used as the new (Moma room hull section), and there is no need to build a new engine room hull section, so the amount of new steel materials required for the construction can be reduced by Inushinhata ( This photo 1 is complete.

(2) Once all the main engine replacement work has been completed in the tank, the old main engine room rJ area will be saved and the preparatory work period will be shortened.

(3) (After the hull section has been removed, the hull will have sufficient structural strength during construction 1T-; due to the structure of the two sides, the gunwales, and the section of the hull. It will be maintained, and there will be no need to reinforce one ship.

(,・1) Work (replacement parts to replace the difference are required to a minimum, and it is difficult to do it in the dock. 6; Because it is difficult to carry out, complicated work such as loading and unloading is required. No longer needed, no more work
Not only can the number of forgeries be reduced, but the scope of work can be reduced and the construction period can be significantly shortened.

(1) If necessary, the removed engine room hull parts can be reused for the main engine replacement work of the pond ships, making it possible to effectively utilize the remaining materials from the construction work.

[Brief explanation of drawings]

Figures 1 to 3 show a method for replacing the main engine of a ship as an embodiment of the present invention. Figure 1 is a plan view for explaining the method, Figure 2 is a side view, and Figure 3 is a side view. lll in Figure 1
1 is a side view schematically showing a conventional method for replacing the main engine of a 111) ship. 10. Engine room hull part, 11. New aircraft, 12. Modified hull structure, 13. Engine room, 1. ↓・・Main engine, 15・
・Accommodation area structure, 16. Engine room hull part, 17. Upper part of engine room, 18. 11 full sides of engine room, 19.
・Hull, 20...Dock.

Claims (1)

[Claims] When carrying out work to replace the main engine of a ship that has a living quarters structure on the upper deck of the hull and an engine room below the same living quarters structure, it is necessary to carry out construction work to replace the main engine of a ship that is different from the above ship in advance. The engine room hull section is built by using the existing hull section and installing a new main engine into the same existing hull section, and after the ship whose main engine is to be replaced is moved into the dock, the same ship is installed. The engine room hull section containing the main engine was cut from the hull and removed to the side, leaving the above living quarters structure and the upper part of the engine room as structural members for reinforcement during construction, and then prepared in advance. The engine room hull portion containing the new main engine is fitted into the hull from the side and fixed to the hull,
Ship main engine replacement method.