KR20160148763A

KR20160148763A - Blastwall structure

Info

Publication number: KR20160148763A
Application number: KR1020150084999A
Authority: KR
Inventors: 류용희; 구명준; 김용규; 신민철; 이윤한; 이충현
Original assignee: 삼성중공업 주식회사
Priority date: 2015-06-16
Filing date: 2015-06-16
Publication date: 2016-12-27
Also published as: KR101722440B1

Abstract

A blast wall structure is disclosed. The blast wall structure, according to an embodiment of the present invention, comprises: a wall which can be rotated rearward around a hinge support part installed on the bottom end of a rear plate; and a wire of which one end is connected to the top end of the wall through the inside of the wall and the other end is located under a deck of an offshore structure through the deck and which has a wire restriction part on the other end. Therefore, the blast wall structure protects a utility area or a living quarter from a blast load.

Description

Blastwall structure

The present invention relates to an explosion-proof structure.

An offshore structure including FPSO (Floating Production Storage and Offloading) is likely to explode due to gas and oil due to its operational characteristics. If an explosion occurs in an offshore structure, it can lead to fatal structural damage or sinking. Therefore, it is necessary to reduce the possibility of an explosion in the design stage and secure the stability of the structure in the event of occurrence.

When an explosion accident occurs from an arbitrary module of an offshore structure, an explosion shock is transmitted to another module, so that various modules may explode together to cause a major accident. Also, when explosion is transmitted to a residence, To prevent this, a blastwall is installed between the modules.

Korean Patent Laid-Open No. 10-2015-0004185 discloses an explosion-proof wall and a construction method thereof for an explosion-proof wall.

Generally, the explosion-proof wall is designed to withstand the explosion pressure, and when the explosion occurs, the explosion-proof wall prevents the explosion pressure in the explosion-causing module from being transmitted to the other module. In other words, the explosion-proof walls primarily prevent the gas from diffusing from one module to another and, secondarily, prevent an explosion from being transmitted to other modules in the event of an explosion.

However, due to the large size of offshore structure, it is expected that a large explosion load will be applied. In addition, the size and thickness of the explosion-proof wall must also increase.

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. 10-2015-0004185

The present invention is to provide an explosion-proof structure that protects a utility zone or a living quarter from impact against an explosive load by using a wire to create an angle of reflection of the explosion-proof wall against the explosion load, thereby emitting an explosive load outside the hazardous area.

The present invention is to provide an explosion-proof structure capable of effectively coping with an explosion load while reducing the size and thickness of the explosion-proof wall by applying a method of discharging the explosion load out of the dangerous area instead of supporting the explosion load.

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 hinge apparatus comprising: a wall rotatable rearward about a hinge support provided at a lower end of a rear plate; And a wire penetrating the inside of the wall, one end of which is connected to the upper end of the wall, the other end of which penetrates the deck of the offshore structure and is located below the deck, / RTI >

The wire may be longer than the vertical length of the wall.

Wherein the wire comprises a first wire disposed relatively adjacent to the backplane and a second wire disposed relatively adjacent to the front plate of the wall, wherein the second wire is longer than the first wire .

And a wall restraint member provided between the outer surface of the front plate of the wall and the deck, wherein the wall restraint member can be broken with respect to a load of a predetermined size or more.

And a pivot stopper protruding from an outer surface of the rear plate to stop the wall from rotating at a predetermined angle or more.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to an embodiment of the present invention, an explosion wall is used to generate an angle of reflection with respect to an explosive load by using a wire, thereby extinguishing an explosive load outside the hazardous area, thereby protecting utility areas or living quarters from impacts against an explosive load.

In addition, it is not a method of supporting the explosive load but a method of discharging the explosive load out of the dangerous area is applied so that it can effectively cope with the explosive load while reducing the size and thickness of the explosion-proof wall.

FIG. 1 is a view showing an offshore structure having an explosion-proof structure according to an embodiment of the present invention.
Figures 2 and 3 are enlarged cross-sectional views of explosion-proof structures at normal times and at the time of explosion.

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, mean 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 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 explosion-proof structure according to an embodiment of the present invention, and FIGS. 2 and 3 are enlarged cross-sectional views of an explosion-proof structure during normal and explosion.

1 to 3 illustrate an embodiment of an offshore structure 10, modules 21, 22 and 23, a deck 11, an explosion proof structure 100, a wall 110, a first wire 121, 123, a second wire 131, a second wire restricting member 133, a wall restraining member 140, a hinge support 155, and a pivoting stopper 150 are disclosed.

The explosion-proof structure according to an embodiment of the present invention is disposed between the modules 21, 22, and 23 installed on the deck as an upper structure of the offshore structure 10, And the direction of the explosion load is changed to minimize the influence on the module 21 located on the opposite side and to prevent the occurrence of the secondary accident in advance.

The explosion-proof structure 100 according to the present embodiment has a wall 110 including a front plate and a rear plate as a basic framework.

A hinge support part 155 is provided at the lower end of the rear wall of the wall body 110. When the wall body 110 is subjected to an explosive load, the wall body 110 is not directly supported, but is rotated around the hinge support part 155 Structure.

Wires 121 and 131 are provided inside the wall 110 to prevent the wall 121 from falling over a predetermined rotation angle when the hinge support 155 is rotated about the center.

Although two wires such as the first wire 121 and the second wire 131 are shown in the drawing, this is only an example, and it is not limited to the embodiment, and may be changed depending on the wall properties such as the height and weight of the wall 110 The quantity may vary.

2 and 3 show cross-sectional views. It goes without saying that the wire may be installed at predetermined intervals in the horizontal direction of the wall 110. FIG.

The wires 121 and 131 may be connected at one end to the upper end of the wall 110 and at the other end may be located below the deck 11 through the deck 11 of the offshore structure.

The wire restraint holes 123 and 133 are provided at the other ends of the wires 121 and 131. When the wires 121 and 131 are pulled by the rotation of the wall 110, The wall 110 is prevented from being excessively rotated by applying a tensile force.

The length of the wire may be longer than the vertical length (i.e., height) of the wall 110. This is to allow the wall body 110 to rotate to a certain extent, but to limit the rotation of the wall body 110 over a certain range.

As shown in the figure, when two wires are provided, the first wire 121 is installed adjacent to the rear plate of the wall 110, and the second wire 131 is adjacent to the front plate of the wall 110 .

At this time, the length of the second wire 131 may be longer than the length of the first wire 121. The wall 110 rotates about the hinge support 155 provided at the lower end of the rear plate and the second wire 131 rotates about the hinge support 155 from the center of the hinge support 155, This is because the distance is longer and the wire length is required to be longer for the same angle of rotation.

That is, when the wall 110 rotates, the first wire restraint 123 restricts the rotation of the wall by a predetermined range or more. Further, the second wire restraint 133 restricts the rotation beyond a predetermined range, 110 can be prevented from falling.

In this embodiment, the wall restraint member 140 may be provided on the outer surface of the front plate of the wall body 110. [

The wall restraint member 140 is a moving member that connects between the outer surface of the front plate of the wall body 110 and the upper surface of the deck 11. [ And has a characteristic of breaking when the tensile force applied to both ends is larger than a predetermined size.

Both ends of the wall restraint member 140 can be joined by welding. Or bolted / nut fastened.

In other words, the wall 110 is held by a general load to prevent the wall 110 from rotating around the hinge support 155, but the explosive load of a predetermined size or more is broken, So that it can rotate smoothly around the support portion 155.

This is because when the wall restraint member 140 is not broken and the wall member 110 is held against the explosion load of a predetermined size or more, the wall 110 is required to hold the explosion load, This is because the thickness is required to be large.

In other words, the wall restraint member 140 is broken with respect to a large load so that the wall body 110 smoothly passes rearward and tilts so that an angle of reflection is generated with respect to the explosion load so that the magnitude of the explosion load applied perpendicularly to the wall body 110 The explosion load can be allowed to move upward beyond the danger zone.

Further, in this embodiment, the rotation stopping member 150 may be provided on the outer surface of the rear plate of the wall body 110.

When the wall 110 rotates backward around the hinge support 155, the wires 121 and 131 are restrained not to exceed a certain angle by the wires 121 and 131. However, due to an unexpected large explosion pressure, The rotation stopper member 150 is provided to ensure safety.

The rotation of the wall body 110 is restricted by the rotation stopping member 150 while the wall body 110 is being moved rearward, so that the wall body 110 can be prevented from completely falling over.

Although the pivot stopper 150 is shown as being monolithic in the drawings, this is only an example, and an L-shaped or a C-shaped may be used.

According to the present embodiment, the wall body 110 is maintained in a vertical state with respect to a general load by the wall restraining member (see Fig. 2).

In the event of an explosion, after the wall restraint member is broken by the explosion load proceeding from the front, the wall is maintained at a predetermined angle by the wire and / or pivot stop member, thereby making an angle of reflection with respect to the explosion load Reference). This angle of reflection makes it possible to reduce the cross-sectional size and / or thickness of the explosive load compared to a conventional wall that was simply supported to block the explosive load, rather than directly exerting a force on the wall.

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, 23: Module
100: explosion-proof structure 110: wall
121: first wire 123: first wire restraint
131: second wire 133: second wire constraint
140: wall restraint member 150: pivotal stop member
155: hinge support

Claims

A wall rotatable rearward about a hinge support provided at a lower end of the rear plate; And
An explosion-proof structure penetrating the inside of the wall, having one end connected to the upper end of the wall and the other end passing through a deck of the offshore structure and located under the deck;

The method according to claim 1,
Wherein the wire is longer than the vertical length of the wall.

The method according to claim 1,
The wire
A first wire relatively installed adjacent to the rear plate,
And a second wire installed adjacent to the front plate of the wall relatively,
Wherein the second wire is longer than the first wire.

4. The method according to any one of claims 1 to 3,
And a wall restraining member provided between the outer surface of the front plate of the wall and the deck,
Wherein the wall restraint member is broken with respect to a load of a predetermined size or more.

4. The method according to any one of claims 1 to 3,
Further comprising a rotation stop member protruding from an outer surface of the rear plate and stopping the rotation of the wall by a predetermined angle or more.