KR101732603B1

KR101732603B1 - Firewall structure

Info

Publication number: KR101732603B1
Application number: KR1020150115793A
Authority: KR
Inventors: 신민철; 구명준; 김용규; 류용희; 이윤한; 이충현
Original assignee: 삼성중공업 주식회사
Priority date: 2015-08-18
Filing date: 2015-08-18
Publication date: 2017-05-04
Also published as: KR20170021446A

Abstract

Fire protection structure is disclosed. The fire-fighting structure according to an embodiment of the present invention includes a wall module disposed between two separation spaces provided on a deck of an offshore structure, the wall module being rotatable about a vertical central axis as a reaction against the power output of water Structure.

Description

{Firewall structure}

FIELD OF THE INVENTION The present invention relates to fire protection structures.

Offshore structure such as FPSO (Floating Production Storage and Offloading) is likely to cause explosion or fire accident due to gas and oil due to its operational characteristics, and may cause fatal structural damage or sinking when explosion or fire occurs in an offshore structure. have. Therefore, it is necessary to reduce the possibility of an explosion or a fire accident at the design stage and secure the stability of the structure at the time of occurrence.

In particular, the FPSO and the like are mounted on the top side, and a plurality of separation spaces are formed to separate the modules in order to efficiently arrange the equipment in the limited space of the top side. When a fire accident occurs from an arbitrary module, it is likely to lead to an explosion, and when an explosion occurs, an explosion impact is transmitted to another module, so that a plurality of modules may explode together to cause a major accident. When an explosion is transmitted to a residence, As the possibility of an accident increases, a firewall is installed between the modules to prevent explosion or transition of fire between the modules.

Korean Unexamined Patent Publication No. 10-2014-0013323 discloses a bulletproof or fire wall for preventing the explosion or the spread of fire in a limited space such as a top side of an offshore structure. However, according to this, since the firewall between the modules is fixed, there is inconvenience in moving between the modules in normal times.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

Korean Patent Publication No. 10-2014-0013323

An object of the present invention is to provide an anti-fouling structure that is open during normal operation, allows free passage between neighboring modules, and is closed only when an accident occurs to prevent the explosion or the spread of fire.

SUMMARY OF THE INVENTION [0006] The present invention is to provide a fire structure in which the passage between modules is closed by rotating the wall module using the water output of water, and at the same time, the fire is suppressed by the water being jetted.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention there is provided a wall module comprising a wall module disposed between two separation spaces provided on a deck of an offshore structure, the wall module having a structure rotatable about a vertical central axis, Fire protection structure is disclosed.

The wall module includes: a body portion including a first wall surface and a second wall surface facing each other; A first main pipe and a second main pipe vertically passing through the center of the body portion; And a first branch pipe and a second branch pipe branched from the first main pipe and the second main pipe toward both edges of the body portion, wherein an end of the first branch pipe is bent toward the first wall surface And the second branch pipe is bent toward the second wall surface and is exposed to the outside of the second wall surface so as to form a second jet port that is exposed to the outside of the first wall surface, .

The first main pipe and the second main pipe are respectively connected to a first sub-supply pipe and a second sub-supply pipe, which are disposed below the deck, by a swivel assembly so as to receive water.

The first main pipe and the first branch pipe, the second main pipe and the second branch pipe may be connected in a swivel structure.

Wherein the body portion is limited in rotation by a stopper installed on the upper portion of the deck, the stopper being located on a radius corresponding to a length from the vertical center axis to both edges of the body portion, At a distance corresponding to a half of the thickness of the body portion.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and the detailed description of the invention.

According to the embodiment of the present invention, it is open during normal operation so that it can freely pass between neighboring modules, and is closed only when an accident occurs, thereby preventing explosion or spread of fire.

In addition, by rotating the wall module using the water output of the water, the passage between the modules can be closed and the fire can be suppressed by the water being jetted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a marine structure having a fire-fighting structure according to an embodiment of the present invention; FIG.
FIG. 2 is a view showing the operation of the fire-fighting structure in the event of an accident,
3 and 4 are a perspective view and a cross-sectional view of a wall module according to an embodiment of the present invention,
5 is a view showing a connection structure between a main pipe and a sub-
6 is a plan view of an offshore structure having an arson structure according to an embodiment of the present invention;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the terms "part," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a view showing an offshore structure having an anti-fouling structure according to an embodiment of the present invention, and FIG. 2 is a view showing an operation of the anti-fire structure in the event of an accident.

1 to 2 show the structure of the offshore structure 10, the first separation spaces 21 and 22 (also collectively referred to as '20'), the second separation spaces 31 and 32 (collectively, '30' (40), wall module (100), and deck (12).

The fire-fighting structure 40 according to an embodiment of the present invention includes a plurality of wall modules arranged in a line along a reference line 50 crossing between the separation spaces 20 and 30 for preventing the transition of explosion or fire accident 100).

For the sake of understanding and explanation of the invention, the description will be made on the assumption that the fire protection structure is divided into two parts, that is, a left space and a right space. It is needless to say that a fireproof structure having the same technical idea may be installed between different separation spaces 20 and 30 even in the left space or the right space.

The plurality of wall modules 100 are normally placed in a state of intersecting with the reference line 50 (for example, in a vertical state) as shown in FIG. 1, so that a passage connecting between the two separation spaces 20 and 30 So that an operator or the like can freely pass through the two separation spaces 20 and 30.

However, when an accident such as an explosion or a fire occurs, water is ejected through only one side as shown in FIG. 2, so that the wall module 100 is rotated in response to the rotation of the wall module 100, It can be made into a single wall. In this case, the wall modules 100 serve as a firewall for separating the two separation spaces 20 and 30 from each other, thereby preventing the explosion or the fire generated in the first separation space 20 from diffusing into the other separation space 30.

The spacing between the wall modules 100 may be substantially the same as the length of the wall module 100. In this case, when the wall module 100 rotates, the wall module 100 can be precisely aligned without any part to be spaced apart or overlapping with the adjacent wall module 100, thereby forming a straight wall.

In the case where the first separation space 20 is divided into two small separation spaces 21 and 22 and the fire is generated only in the first small separation space 21, Only the wall module 100 to be rotated may function as a firewall (see Fig. 2).

In addition, the fire generated in the first separation space 20 can be suppressed by the water sprayed from the wall module 100, so that the wall module 100 according to the present embodiment has a fire suppression function .

Hereinafter, the detailed structure of the wall module 100 will be described in detail with reference to related drawings.

3 and 4 are a perspective view and a sectional view of a wall module according to an embodiment of the present invention, and FIG. 5 is a view showing a connection structure between a main pipe and a sub-pipe.

3 to 5 show the wall module 100, the body 110, the first wall surface 121, the second wall surface 126, the first main pipe 131, the second main pipe 136, The main branch pipe 141, the second branch pipe 146, the first air outlet 151, the second air outlet 156, the main supply pipe 210 and the sub supply pipes 221, 226, 231 and 236 A pump 200, a stopper 160, a central shaft 105, and a swivel assembly 170 are shown in the drawings.

The wall module 100 according to the present embodiment has a body 110 that is rotatable about a central axis 105 as a basic skeleton.

Although the body 110 is shown as having a central portion in the shape of a cylinder, this is merely an example, and the shape in which the body 110 is rotatable will belong to the technical idea of the present invention.

Two main pipes 131 and 136 are provided in a vertical direction in a central portion of the body 110. The main pipes 131 and 136 are connected to both ends of the body 110, One or more branch pipings 141, 146 connected to the branch piping.

The branch pipings 141 and 146 are bent toward the respective wall surfaces 121 and 126 of the body 110 while being directed to the ends and have air outlets 151 and 156 exposed to the outside of the wall surfaces 121 and 126, Respectively.

Depending on the main piping to which the branch piping is connected, the bending direction may be reversed. The first branch pipe 141 connected to the first main pipe 131 is bent toward the first wall surface 121 so that the first jet port 151 is connected to the first wall surface 121 And the second branch pipe 146 connected to the second main pipe 136 is bent toward the second wall surface 126 so that the second jet port 156 may be formed on the second wall surface 126 have.

A water supply pipe for supplying water to the main pipe is disposed below the deck of the offshore structure where the body 110 is installed.

The water supply pipe is connected to the pump 200 and includes a main supply pipe 210 for introducing water from a storage tank (not shown) and a sub supply pipe 210 for branching in a direction parallel to the reference line 50 from the main supply pipe 210 220).

The sub supply pipe 220 has two lines 221 and 226 arranged parallel to each other and each line is connected to the first main pipe 131 and the second main pipe 136 of the body 110, have. The sub-supply pipe 220 may further include two lines 231 and 236 disposed in parallel in the opposite direction.

Although the lines 221 and 226 of the sub-supply pipe are shown on the same horizontal plane in the figure, it goes without saying that each line may have a two-layer structure on the same vertical plane.

Referring to FIG. 5, the main pipes 131 and 136 may be connected to the sub supply pipes 221 and 226 through a swivel assembly 170. The swivel assembly 170 is a structure that allows the main piping 131, 136 to rotate relative to the sub-feed pipes 221, 226.

The swivel assembly 170 may include, for example, spaces for moving water through the first sub-feed pipe 221 and water through the second sub-feed pipe 226 in an isolated state, And relative to the first sub-supply pipe 221 and the second sub-supply pipe 226 in a state in which the first main pipe 131 and the second main pipe 136 are kept air- It is possible to have an airtight rotary unit that enables rotation.

Even when the main pipelines 131 and 136 are rotated around the central axis 105 by the swivel assembly 170, the connection with the sub-supply pipes 221 and 226 continues and smoothly flows into the main pipes 131 and 136 Water can be supplied.

4, a valve 240 is provided at the inlet of the sub-supply pipe 220 so that water in the main supply pipe 210 flows into the sub-supply pipe 220 due to opening and closing of the valve 240, . For example, when the valve 240 is opened, the water in the main supply pipe 210 flows into the sub supply pipe 220, and when the valve 240 is closed, its inflow is limited.

Each valve 240 can be independently controlled. Or a pair of valves 241 and 246 provided for a pair of sub supply pipes 221 and 226 extending in the same direction are controlled to be interlocked with each other so that when one is opened, .

When water is supplied to any one of the valves (for example, the first valve 241), water is supplied to the first main pipe 131 through the first sub supply pipe 221, Water flows through the first branch pipe 141 connected to the first branch pipe 131, and water is blown through the first branch pipe 151. In this case, the body 110 rotates in the counterclockwise direction due to the reaction with the output of water (see Fig. 4 (b)).

The rotation of the body part 110 may be restricted by a stopper 160 installed at a predetermined position on the upper part of the deck. The stopper 160 restricts the rotation of the body 110, and may be installed on the upper portion of the deck.

The position may be a position where it is stopped when the body 110 is rotated 90 degrees (?) So as to be placed on the reference line 50. That is, it is located on the radius corresponding to the length from the central axis 105 of the body 110 to the both edges of the body 110, and the expected rotation direction of the body 110 from the reference line 50 (I.e., a counterclockwise left direction) at a distance corresponding to a half of the thickness of the body 110.

The stopper 160 may be additionally provided at a point symmetric with respect to the central axis 105 of the body 110.

6 is a plan view of an offshore structure having an arson structure according to an embodiment of the present invention.

Fig. 6 (a) shows a normal state of the fire protection structure 40, and Fig. 6 (b) shows a state when an accident occurs.

Normally, the wall module 100 is placed perpendicular to the reference line 50, and a passage is provided between the two separation spaces 20 and 30 to allow free passage.

However, when an accident occurs, the water in the reservoir tank is controlled by the main pipe 131 and the branch pipe 141 through the main supply pipe 210 and the sub supply pipe 221 by controlling the valve 241 so that water can be discharged to the accident occurrence point. To be jetted to the jetting port 151. [ At this time, the body part 110 is rotated and placed in a straight line on the reference line 50 in response to the output of water.

Here, the valve control may be performed by a control unit (not shown). When the wall module is rotated after sensing a point where a fire occurs, water is sprayed to the wall surface, The valve of the sub supply pipe can be controlled to be opened. 40 3046) 251, 256, and a plurality of wall modules 100 are aligned in a straight line, the passage is removed between the separation space 21 where the fire is generated and the other separation space 31, and functions as a firewall.

Further, water can be ejected through the jet port 151 to a fire point, so that fire suppression is possible in addition to simple blocking.

In the above description, the main pipe is rotated together with the body, but the main pipe may be fixedly connected to the sub pipe according to the embodiment.

In this case, the branch pipe is connected to the main pipe in a swivel structure, so that even when the branch pipe rotates relative to the main pipe in accordance with the rotation of the body, water in the main pipe can smoothly proceed to the branch pipe.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

10: offshore structure 21, 22: first separation space
31, 32: second separation space 40: fireproof structure
50: baseline 100: wall module
110: body part 121: first wall surface
126: second wall surface 131: first main pipe
136: second main piping 141: first branch piping
146: second branch piping 151: first outlet
156: second jet port 160: stopper
170: a swivel assembly 105; Center axis
200: pump 210: main supply pipe
221, 226, 231, 236: Sub-supply pipes 241, 246, 251, 256:

Claims

A wall module disposed between two separation spaces provided on the deck of the offshore structure,
The wall module has a structure rotatable about a vertical central axis as a reaction against the minute water output,
The wall module includes:
A body portion including a first wall surface and a second wall surface facing each other;
A first main pipe and a second main pipe vertically passing through the center of the body portion;
And a first branch pipe and a second branch pipe branched from the first main pipe and the second main pipe toward both edges of the body portion,
Wherein an end of the first branch pipe is bent toward the first wall surface and is formed with a first jet port which is exposed to the outside of the first wall surface,
And an end of the second branch pipe is bent toward the second wall surface to form a second jet port that is exposed to the outside of the second wall surface.

delete

The method according to claim 1,
Wherein the first main pipe and the second main pipe are respectively connected to a first sub-supply pipe and a second sub-supply pipe, which are disposed at a lower portion of the deck, by a swivel assembly to receive water.

The method according to claim 1,
Wherein the first main pipe and the first branch pipe, the second main pipe and the second branch pipe are connected in a swivel structure.

The method according to claim 1,
The body is limited in rotation by a stopper installed on the deck,
Wherein the stopper is located on a radius corresponding to a length from the vertical center axis to both edges of the body portion and extends from the reference line extending across the separation space and being a reference line in which the wall module is arranged in line with the wall module, Is disposed at a position spaced apart by a distance corresponding to a half of the thickness of the body portion in the expected rotational direction of the body.