JPS61166785A - Method of hull engine room extension work - Google Patents

Abstract

PURPOSE:To prevent a pump housing from being bisected as well as to make an engine room extendible without prolonging a term of works, by cutting the hull at a cutting-plane line along a side edge of a stepped transverse bulkhead, in case of engine room extension work. CONSTITUTION:In case of engine room extension work, the hull is bisected into a front hull 4a and a rear hull 4b so as to cause a transverse bulkhead 7 to be left behind at the side of a pump housing 2 by a cutting-plane line C along a side edge of the stepped transverse bulkhead 7. And, a turbine engine 5 is removed from an engine room 1 and a Diesel engine is set up in this engine room 1 instead and, after replacement work for a main engine is over, an engine room intention hull part 3 is inserted in between the front hull 4a and the rear hull 4b and both are joined together. With this constitution, since extension work for the engine room is performable without cutting the pump housing 2, it can be done at a substantially less cost.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for expanding a ship's engine room, particularly for a ship having a pump room partitioned off by a stepped transverse bulkhead on the front side of the engine room. Concerning engine room expansion construction methods.

[Conventional technology]

2. Description of the Related Art In recent years, main engine conversion work has often been carried out on ships such as large tankers that use turbine engines as main engines, in which the main engines are replaced with diesel engines that consume less fuel.

In this case, since the overall length of a diesel engine is generally longer than that of a turbine engine, it is necessary to extend the wavelength of the ship's engine room itself.

Therefore, as shown in Figure $2, the same lf
1 When expanding the engine room of a ship that has a pump room 2 separated from the engine room 1 by a stepped transverse bulkhead 7, conventionally, the rear end face of the transverse bulkhead 7 (f? chain line a in Fig. 2) (see) or the hull is bisected into a front hull and an aft hull along the front end face of the transverse bulkhead 7 (see the chain line in Fig. 2), and then the space between the front hull and the rear hull (not shown) is cut into two parts. The hull section for expanding the engine room is inserted and connected.

The main engine is replaced by removing the turbine engine 5 from the engine room 1 and installing a diesel engine (not shown) in the engine room 1 after the hull is bisected.

Further, as shown in Figure @2, the stepped horizontal partition wall 7 is formed such that its front end surface is disposed higher than its rear end surface.

[Problem that the invention seeks to solve]

However, in the conventional means as described above, the transverse bulkhead 7
When bisecting the hull along the rear iin plane, the superstructure 9 is often placed above the cutting position,
When expanding the lf1 room, it is also necessary to support and cut the upper structure 9, which poses a problem in that the construction work becomes extremely large-scale and increases the construction period and cost.

On the other hand, when the hull is bisected along the front end face of the transverse bulkhead 7, the pump chamber 2 is bisected at the center.
It is necessary to rearrange the equipment in the pump room 2, which again poses the problem of increasing construction time and construction costs.

The present invention attempts to solve the above-mentioned problems, and aims to provide a construction method that allows the engine room of a ship to be easily renovated without increasing the construction period or cost. .

[Means for solving problems]

For this reason, the ship engine room expansion construction method of the present invention is applicable to the engine room expansion construction of a ship that has a pump room separated from the engine room by a stepped transverse bulkhead on the front side of the engine room. After bisecting the hull into a front hull and an aft hull so that the transverse bulkhead remains on the pump room side along the cutting line along the side edge of the bulkhead, cut the space between the front hull and the rear hull. The feature is that a hull section for engine room expansion is inserted and connected to the hull.

[Effect]

In the hull engine room expansion construction method of the present invention described above, since the hull is bisected along the cutting line along the side edge of the stepped transverse bulkhead, the pump room on the front side of the engine room is not bisected, and the above-mentioned cutting process is Wavelength work in the engine room is carried out without the line intersecting the ship's superstructure.

〔Example〕

Hereinafter, a hull 1fl as an embodiment of the present invention is shown in the drawings.
To explain the fl room expansion construction method, Figure 1 (a)
1 is a longitudinal cross-sectional view of the hull before the engine room expansion work, and FIG. 1(b) is a longitudinal cross-sectional view of the hull after the IIi flash room expansion is performed using this method.

As shown in FIG. 1(a), the turbine engine 8! When expanding the engine room due to the main engine replacement work of a ship that has a pump room 2 separated from the bunker 1 by a horizontal bulkhead 7 with a stepped part, a cutting line C along the side edge of the horizontal bulkhead 7 with a stepped part was cut. At this point, the hull is bisected into a front hull 4a and a rear hull 4b so that the horizontal bulkhead 7 remains on the pump room 2 side.

Then, remove one engine room from the turbine engine 5,
After installing the diesel engine 6 in the engine room 1 and performing main engine replacement work, these front hull 4a and rear hull 4
The engine room expansion hull part 3 is inserted into the space between b and b.

Note that the diesel engine 6 may be installed in the engine room 1 after the hull portion 3 is coupled to the front end of the rear hull 4b.

In addition, although the upper structure of the hull (see reference numeral 9 in FIG. 2) is omitted from illustration in FIGS. 1(a) and t(b),
I #I c is set so that it does not intersect with this superstructure.

In the method of the present invention, as described above, the hull is bisected at the cutting line C along the side edge of the transverse bulkhead 7, so the pump chamber 2 is not bisected as in the conventional case, and the equipment inside the pump chamber 2 is There is no need to rearrange the types, and 1fIII
There is no need for ant control work in the pump room 2 after the I room expansion work.

゛ Furthermore, since the cutting line C that bisects the hull does not intersect with the hull superstructure, there is no need to support or cut the superstructure during engine room expansion work, making the work extremely easy and cost-effective. It is done at a cost.

[Effects of the Invention] As detailed above, according to the ship engine room expansion construction method of the present invention, there is a pump room on the front side of the engine room that is partitioned from the engine room via a stepped transverse bulkhead. When expanding the I11 cabin of the ship, the hull was bisected into the front hull and the rear hull at the cutting line along the side edge of the stepped horizontal bulkhead so that the horizontal bulkhead remained on the pump room side. By simply inserting and connecting the engine room expansion hull section between the front hull and the rear hull, it is possible to remove the inside of the pump room during the wavelength construction of the hull engine room associated with the main engine replacement work of the ship. In addition to eliminating the need to rearrange the equipment, there is no need to install dovetails in the pump room after wavelength construction, and the cutting line does not intersect with the superstructure of the ship, making it an 8! Opening wavelength work can be done extremely easily and at low cost.

[Brief explanation of drawings]

FIGS. 1(a) and (b) show a method for expanding the engine room of a ship as an embodiment of the present invention. FIG. 1(a) is a vertical cross-sectional view of the hull before the engine room expansion work; FIG. 1(b) is a longitudinal cross-sectional view of the hull after the engine room expansion work according to this method, and FIG. 2 is a longitudinal cross-sectional view of the ship body for explaining a conventional ship engine room expansion construction method. 1...engine room, 2...pump room, 3...hull part for engine room expansion, 4...front hull, 4b...rear hull, 5...
Turbine engine, 6... Diesel engine, 7...
Transverse bulkhead with steps. (b)

Claims (1)

[Claims] When expanding the engine room of a ship that has a pump room separated from the engine room by a stepped transverse bulkhead on the front side of the engine room, the above-mentioned transverse bulkhead will The hull is bisected into a front hull and a rear hull so that the front hull remains on the pump room side, and then a hull section for expanding the engine room is inserted between the front hull and the rear hull and joined together. A method for expanding a ship's engine room, which is characterized by: