KR20150025586A

KR20150025586A - buoyancy casing fire extinguishing device of semi-submersible heavy lift carrier

Info

Publication number: KR20150025586A
Application number: KR20130103258A
Authority: KR
Inventors: 이강석
Original assignee: 현대중공업 주식회사
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2015-03-11

Abstract

The present invention relates to a buoyancy casing fire extinguishing device of a semi-submersible heavy cargo carrier and, more specifically, to a buoyancy casing fire extinguishing device of a semi-submersible heavy cargo carrier capable of quickly extinguishing fire by including a fire extinguishing device to prevent a control room fire in a buoyancy casing, and also increasing the efficiency of fire extinguishing device installation by installing the fire extinguishing device on the outside of the buoyancy casing to have simplified configuration of the fire extinguishing device and reduce work man-hour and work period. The buoyancy casing fire extinguishing device of a semi-submersible heavy cargo carrier comprises: a cabinet which is installed on an upper part of a buoyancy casing and includes an installation space therein, wherein the buoyancy casing includes a control room in which various devices for controlling buoyancy of buoyancy casing are installed; a plurality of gas bottles installed in the cabinet and filled with fire extinguishing agent; a main pipe which connects between the cabinet and the control room in the buoyancy casing and forms a pipeline through which the fire extinguishing agent of the gas bottle is sprayed; a sub-pipe connecting the gas bottles with the main pipe; and a release control unit which is installed on one side of the cabinet and discharges the fire extinguishing agent of the gas bottle to the main pipe through the sub-pipe by supplying pressure to the gas bottle to form overpressure in the gas bottle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a buoyancy casing fire extinguishing device for semi-submersible heavy lift carriers,

The present invention relates to a buoyancy casing fire extinguishing system for semi-submersible heavy goods carriers, and more particularly, to a fire extinguishing system for a control chamber of a buoyancy casing separately provided outside a buoyancy casing, So as to enhance the efficiency of the installation of the fire extinguishing apparatus, and to provide a buoyancy casing extinguishing apparatus for a semi-submersible heavy goods carrier.

Due to the limitation of the weight, shape and size of the cargo to be transported, it is not possible to transport the cargo to a general cargo ship. A planned cargo carrier to carry such a cargo is a semi-submersible heavy- (semi-submersible heavy lift carrier).

Types of semi-submersible heavy goods carriers include heavy lift vessels, dock type vessels, and open deck vessels.

These semi-submersible heavy-goods carriers require the adjustment of the ballast balance so that the weight of the heavy goods does not bias the hull to one side in order to carry the heavy goods safely.

For this purpose, a semi-submersible heavy-goods carrier is equipped with a ballast balance measuring device, ie buoyancy casing.

The buoyancy casing is typically a box-like structure that is mounted on an upper deck as shown in FIG. 1 to secure additional buoyancy in a semi-submersible heavy lift carrier.

At this time, the buoyancy casing (10) is installed in the hull and has a hexahedron to balance the hull.

Hereinafter, the heavy load shipment and load using the semi-submersible heavy-goods carrier constructed as described above will be briefly described.

First, water is injected into a ballast water tank (not shown) constituting a buoyancy casing 10 of a semi-submersible heavy cargo ship to submerge the hull deck 20 below the water surface.

Next, heavy objects such as semi-articulated ships, offshore structures, etc. are shipped on the deck 20 of semi-submersible heavy goods carriers.

At this time, the heavy object is shipped in a space secured between the buoyancy casing 10 and the cabin 30.

Thereafter, when the loading operation for the heavy object is completed, the ballast water tank is emptied to raise the deck 20 of the semi-submerged neutralizer carrier over the sea.

That is, the buoyancy of the buoyancy casing 10 floats the deck 20 of the submerged ship over the sea.

On the other hand, when loading of the heavy object is completed, the semi-submersible heavy object carrier is operated to transport the heavy object to the destination.

Thereafter, after arriving at the destination, the buoyancy casing 10 is filled with water to lower the deck 20 of the semi-submerged neutralizer carrier in order to load the heavy object.

Thereafter, transportation of the heavy object is completed by lifting the heavy object from the semi-submerged heavy object carrier.

Meanwhile, a control chamber (not shown) for controlling the buoyancy of the buoyancy casing 10 is installed in the buoyancy casing 10, and a fire extinguishing facility for preparing fire for the control room must be provided.

However, in the prior art, since the fire extinguishing apparatus according to the fire of the buoyancy casing 10 is not provided in the buoyancy casing 10, there is a problem that rapid fire suppression can not be achieved in case of fire in the buoyancy casing 10. [

In other words, the use of the fire extinguishing system provided in the hull has made it difficult to suppress the fire quickly.

At this time, a fire extinguishing facility may be additionally installed inside the buoyancy casing 10 provided with the control room, but this has a problem that efficiency is low.

That is, in the case of installing the fire extinguishing facility inside the buoyancy casing 10, the increase of the air flow and the facility cost due to the change of the internal structure of the buoyancy casing 10 are increased, and the efficiency of the fire extinguishing facility preparation work is decreased.

Furthermore, there is a problem that it is difficult to increase work productivity because the material cost may increase and air delay may occur.

Republic of Korea Publication No. 10-2010-0045886

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire extinguishing system for a control chamber of a buoyancy casing separately from the buoyancy casing and to provide a fire extinguishing system without changing the internal structure of the buoyancy casing. To thereby provide a buoyancy casing extinguishing device for a semi-submersible heavy-goods carrier which increases the efficiency of installing a fire-extinguishing device.

In order to achieve the above object, according to the present invention, there is provided a buoyancy casing, comprising: a cabinet installed on an upper portion of a buoyancy casing including a control chamber provided with various equipment for controlling buoyancy of a buoyancy casing, A plurality of gas bottles filled with a fire extinguishing agent, a main pipe connecting between the cabinet and a control chamber inside the buoyancy casing, the main pipe forming a channel through which the extinguishing agent of the gas bottles is injected, A release control device installed at one side of the cabinet to supply an overpressure to the gas bottles by supplying pressure to the gas bottles so that the extinguishing agent of the gas bottles is sprayed to the main pipes through the sub pipes; The present invention provides a buoyancy casing fire extinguishing system for a semi-submersible heavy-goods cargo ship,

In this case, the extinguishing agent is carbon dioxide gas, and the release control device preferably includes a cylinder filled with carbon dioxide gas, and a gas supply pipe connected between the cylinder and the gas bottle.

The sub-pipe is preferably a flexible hose.

The cabinet may further include a vent pipe for ventilating air in the cabinet.

The buoyancy casing extinguishing apparatus of the semi-submerged heavy goods carrier according to the present invention has the following effects.

The fire extinguishing apparatus is provided with a separate fire extinguishing apparatus in preparation for the fire of the buoyancy casing, so that the fire suppression of the buoyancy casing can be rapidly performed.

Particularly, since the fire extinguishing facility is separately provided outside the buoyancy casing, not the inside of the buoyancy casing, the construction for the fire extinguishing apparatus installation work is simplified and the work efficiency can be improved.

In other words, the efficiency is high in various aspects such as work cost, material cost, work air, and the like, as compared with the case where the internal structure of the buoyancy casing is modified to install a fire extinguishing device.

Figure 1 is a perspective view of a semi-submerged heavy goods carrier according to the prior art;
FIG. 2 is a schematic view showing a buoyancy casing extinguishing apparatus of a semi-submerged heavy goods carrier according to a preferred embodiment of the present invention
3 is a front view showing a buoyancy casing extinguishing apparatus of a semi-submerged heavy goods carrier according to a preferred embodiment of the present invention.
4 is a front sectional view showing a buoyancy casing extinguishing apparatus of a semi-submerged heavy goods carrier according to a preferred embodiment of the present invention
5 is a cross-sectional view of a buoyant casing extinguishing system of a semi-submersible heavy-goods carrier according to a preferred embodiment of the present invention.

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Hereinafter, a buoyancy casing extinguishing apparatus for a semi-submerged heavy goods carrier according to a preferred embodiment of the present invention will be described with reference to FIGS. 2 to 5 attached hereto.

The buoyancy casing fire extinguishing system is designed to facilitate the fire extinguishing operation in the control room in the buoyancy casing, but it is installed separately on the outside of the buoyancy casing, thereby reducing the material requirement and simplifying the construction, have.

The buoyancy casing extinguishing device for this purpose comprises a cabinet 100, a gas bottle 200, a main pipe 300, a sub pipe 400, and a release control device 500.

The cabinet 100 serves to protect the gas bottles 20 and various components from the outside, and an installation space is formed therein.

The cabinet 100 is installed in the buoyancy casing 10 and is installed outside the buoyancy casing 10, not inside the buoyancy casing 10.

As shown in FIG. 3, the cabinet 100 is provided with a door 110 on its front surface and a pedestal 120 on its bottom surface.

It is preferable that a handle is provided on the door 110 of the cabinet 100 and a guide plate for guiding information such as usage and configuration in the cabinet 100 is provided.

Next, the gas bottle 200 is filled with fire extinguishing agent which is extinguished when a fire occurs, and is installed in the cabinet 100.

At this time, the extinguishing agent filled in the gas bottle 200 is not limited, but is preferably carbon dioxide gas.

On the other hand, the gas bottle 200 is configured such that the discharge port 210 of the gas bottle 200 is blown by the pressure when a fire occurs, so that the fire extinguishing agent in the gas bottle 200 is spouted.

A detailed description thereof will be given later.

The number of the gas bottles 200 is not limited, but is preferably about six.

It is preferable that the gas bottles 200 are connected to each other so that the flow of gas in the cabinet 100 can be suppressed.

Next, the main pipe 300 serves as a pipe through which carbon dioxide (CO2) gas, which is an extinguishing agent of the gas bottle 200, is injected and fed to the control room, and is installed between the cabinet 100 and the control room.

That is, one end of the main pipe 300 is installed in the cabinet 100, and the other end of the main pipe 300 is installed in the control room so that the exhaust gas from the gas bottle 200 blown out from the discharge port 210 in the cabinet 100, Is injected into the control chamber in the buoyancy casing (10) along the main pipe (300).

At this time, it is preferable that a plurality of nozzles 310 are installed at the other end of the main pipe 300.

The sub pipe 400 serves to connect the gas bottle 200 and the main pipe 300 and connects the gas bottles 200 and the main pipe 300.

That is, the sub-pipe 400 serves to collect the extinguishing agent sprayed from each gas bottle 200 into the main pipe 300.

At this time, the sub-pipe 400 is preferably a flexible hose.

Next, the release control device 500 functions to blow out a plurality of gas bottles 200 provided in the cabinet 100 to blow out the extinguishing agent in the gas bottles 200, Respectively.

The release control device 500 includes a cylinder 510 filling the carbon dioxide gas and a gas supply pipe 520 connecting between the cylinder 510 and the gas bottle 200.

At this time, one end of the gas supply pipe 520 is connected to the cylinder 510, and the other end of the gas supply pipe 520 is connected to the discharge port 210 of the gas bottle 200.

That is, the release control device 500 bursts the discharge port 210 of the gas bottle 200 by forming an overpressure in the gas bottle 200 through the gas supply pipe 520.

Meanwhile, it is preferable that a vent pipe 600 is further installed in the cabinet 100.

The vent pipe 600 is configured to vent air in the cabinet 100 and is preferably installed on the opposite side of the main pipe 300.

That is, the vent pipe 600 discharges the gas generated by an unwanted gas leak or the like from the gas bottle 200 to the outside due to various factors such as an increase in temperature outside the cabinet 100.

Hereinafter, the operation of the buoyancy casing extinguishing device having the above-described configuration will be described.

When a fire occurs in the control room provided in the buoyancy casing 10, a fire alarm is generated by a fire detection sensor (not shown) provided in the control room, and a signal is transmitted to the buoyancy casing extinguishing device installed outside the buoyancy casing 10.

At this time, the cylinder 510 of the release control device 500 of the buoyancy casing extinguishing system supplies the carbon dioxide gas into the gas bottle 200 through the gas supply pipe 520.

Thereafter, overpressure is generated inside the gas bottle 200, and the discharge port 210 of the gas bottle 200 is blown.

Thereafter, carbon dioxide gas is ejected through each opened gas-bottle outlet 210, and the carbon dioxide gas is collected into the main pipe 300 through the sub-pipe 400.

Then, the collected carbon dioxide gas is pumped through the main pipe 300 and injected into the control chamber through the nozzle 310 installed in the lower control chamber.

As a result, it is possible to prevent the spread of fire in the buoyancy casing and to quickly extinguish the fire in the control room.

As described above, the buoyancy casing fire extinguishing system of the semi-submersible heavy-goods cargo ship according to the present invention is provided with a fire extinguishing device for preventing the fire spread of the control room provided in the buoyancy casing and rapidly suppressing fire, There are technical features separately provided.

Accordingly, when an extinguishing device is additionally installed on a semi-submersible heavy-weight carrier already dried, the structure of the extinguishing device can be simplified because there is no need to change the internal structure of the buoyancy casing, It is possible to suppress the factor of increasing the cost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

100: cabinet 110: door
120: pedestal 200: gas bottle
210: discharge port 300: main pipe
310: nozzle 400: sub pipe
500: Release control device 510: Cylinder
520: gas supply pipe 600: vent pipe

Claims

A cabinet installed on an upper portion of the buoyancy casing including a control room provided with various equipment for controlling the buoyancy of the buoyancy casing and forming an installation space therein;
A plurality of gas bottles installed inside the cabinet and filled with a fire extinguishing agent;
A main pipe connecting between the cabinet and the control chamber inside the buoyancy casing and forming a channel through which the extinguishing agent of the gas bottle is injected;
A sub pipe connected between each of the gas bottles and the main pipe;
And a release control device installed at one side of the cabinet and configured to supply pressure to the gas bottle to form an overpressure in the gas bottle to discharge the extinguishing agent of the gas bottle into the main pipe through the sub pipe. Buoyancy casing fire extinguishing system of carrier.

The method according to claim 1,
The extinguishing agent is carbon dioxide gas,
Wherein the release control device comprises a cylinder filled with carbon dioxide gas and a gas supply pipe connected between the cylinder and the gas bottle.

3. The method according to claim 1 or 2,
Wherein the sub-pipe is a flexible hose.

3. The method according to claim 1 or 2,
Wherein the cabinet is further provided with a vent pipe for venting air in the cabinet.