KR101914950B1 - Jet fire firewall - Google Patents

Abstract

A firewall for a jet fire zone is disclosed. According to an embodiment of the present invention, a firewall installed in a jet fire zone of an offshore plant includes a pair of wall plates spaced apart from each other; A sealing material sealing the opening between the pair of wall plates; And a cover plate disposed in front of the sealing material for firstly blocking the opening.

Description

Firewall for Jet Fire Zone {Jet fire firewall}

The present invention relates to a firewall for a jet fire zone.

Offshore plant facilities can be broadly divided into fixed structures, gravity structures, semi-submerged structures, and floating structures depending on various depths and shapes. In particular, floating structures including FPSO are mainly used for the production, separation, storage, loading and unloading of crude oil for the purpose of design, and most of the various operations involved in the operations are performed in the topside. Therefore, it is necessary to design and operate it.

Since the overhead structures of offshore plants are always exposed to gas diffusion, fire and explosion accidents, it is necessary to maintain the mutual safety between the Production Area and the Utility Area and to prevent explosion and / To prevent the propagation of the wall is installed.

These walls must meet disaster prevention classes such as Fire Class and Blast Class.

For example, in order to satisfy the fire rating, it is necessary to fill up the insulation or coat special paints for fire protection. Korean Unexamined Patent Publication No. 10-2005-0079438 discloses a nonflammable composition for a fire door (wall), a nonflammable fire door using the same, and a method for manufacturing the same.

Korean Unexamined Patent Publication No. 10-2005-0079438 (published on Aug. 10, 2005) - Noncombustible composition for fireproof door (wall), nonflammable fireproof door (wall) using same and manufacturing method thereof

The present invention is applicable to a jet fire area where a sealing material fastened to a connection part between wall plates has a flexible characteristic so that a load applied to a wall is dispersed and a fireproof performance over a certain level is satisfied with respect to jet fire through a cover plate To provide a firewall.

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 firewall installed in a jet fire zone of an offshore plant, comprising: a pair of wall plates spaced apart from each other; A sealing material sealing the opening between the pair of wall plates; And a cover plate disposed in front of the sealing material for primarily blocking the opening.

In the pair of wall plates, connection portions of flat plate members are respectively protruded to correspond to the opening portions to the rear, and the sealing material may be fixedly coupled to the connection portions.

The sealing material may have a U-shaped cross section formed to be convex toward the front side.

The sealing material may be made of a refractory material having a flexible property.

The sealing material may have a multi-layer structure, and the middle layer may be made of a steel mesh.

A plurality of horizontal stiffeners disposed at regular intervals in a vertical direction on a rear surface of the wall plate; And a vertical stiffener installed in a direction crossing the plurality of horizontal stiffeners.

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

According to the embodiment of the present invention, since the sealing material fastened to the connection portion between the wall plates has a flexible characteristic, the load applied to the wall is dispersed, and the fireproof performance over a certain level is satisfied with respect to the jet fire through the cover plate .

1 is a perspective view of a firewall for a jet fire area according to an embodiment of the present invention,
FIG. 2 is a plan view, rear view, and side view of the firewall for the jet fire area shown in FIG. 1;
3 is a view showing a sealing material.

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," " unit, "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 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 perspective view of a fire wall for a jet fire zone according to an embodiment of the present invention, FIG. 2 is a plan view, a rear view, and a side view of the fire wall for the jet fire zone shown in FIG. 1, and FIG. 3 is a view .

1 to 3 show a fire wall 100 for a jet fire zone, a wall plate 110, an opening 112, a connecting portion 114, a sealing material 140, a cover plate 150, a horizontal stiffener 120, (130) are shown.

A firewall for a jet fire zone according to an embodiment of the present invention is a firewall installed in an offshore plant for an area where the jet fire is expected (jet fire zone) to block the flame propagation to the rear, A sealing material for sealing the wall is made of a flexible material and is sealed so as to disperse a load applied to the wall while satisfying a fireproof performance of a certain level or more with respect to the jet fire.

The firewall 100 for a jet fire zone according to the present embodiment basically includes a wall plate 110, a sealant 140, and a cover plate 150.

The wall plate 110 is a flat plate member having stiff characteristics, and may be made of steel or the like.

Although a pair of wall plates 110 are spaced apart from each other by a predetermined distance, a large wall plate may be provided and an opening of a predetermined size may be formed in the center of the wall plate.

A reinforcing member for reinforcing the wall stiffness may be provided on the rear surface of the wall plate 110. As the reinforcing material, a horizontal stiffener 120 and / or a vertical stiffener 130 may be included.

A plurality of horizontal stiffeners 120 may be arranged so as to have a predetermined interval in the vertical direction. The horizontal stiffener 120 may have an L-shaped cross section whose rear end is once bent. The portion of the bent portion of the horizontal stiffener 120 adjacent to the connecting portion 114 may be corner-cut.

In addition, since the vertical stiffener 130 is provided in a direction intersecting the plurality of horizontal stiffeners 120, the reinforcing ability can be improved.

A sealing material 140 may be provided in the opening 112 between the pair of wall plates 110. [ The connection part 114 may be provided in the opening 112 between the wall plates 110 for the installation of the sealing material 140.

The connection portion 114 may have a flat plate shape protruding toward the rear along the side surface of the wall plate 110 facing each other. The connecting portion 114 may be supported by a plurality of horizontal stiffeners 120.

A sealing material 140 is provided between the connecting portions 114. The sealing member 140 is a structure having a U-shape when viewed from above. And both sides thereof are fixedly connected to the connection part 114 to seal the opening 112 completely.

Such a sealing material 140 may be a refractory material having a flexible property, for example, a rubber.

The sealing material 140 may have a multi-layer structure, and the middle layer may be formed of a steel mesh. For example, when the sealing material 140 is made of a rubber having a five-layer structure, the middle three layers may be a layer made of a steel mesh.

A cover plate 150 may be additionally provided on the front side of the sealing member 140. The cover plate 150 is a flat plate member for blocking an open space (i.e., the opening 112) between the pair of wall plates 110. The cover plate 150 is a flat plate member for blocking a flame (for example, a jet fire) As shown in FIG.

Since the flame is primarily blocked by the cover plate 150 and then the sealing material 140 located behind the flame is affected by the cover plate 150, the flexible characteristic that the fire resistance characteristic may be somewhat lower than that of the wall plates 110 on both sides It is possible to obtain a fire rating of sufficiently high performance even in the case of the sealing member 140 of FIG.

A typical jet fire condition is as follows.

The fire wall 100 for the jet fire zone according to the present embodiment is constructed such that the primary sealing structure of the cover plate 150 under the jet fire condition according to the above table allows the sealing material 140 at the rear side to be sufficiently Performance.

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.

100: Firewall for Jet Fire Zone 110: Wall Plate
112: opening 114:
120: Horizontal stiffener 130: Vertical stiffener
140: Sealing material 150: Cover plate

Claims (6)

As a firewall installed in a jet fire zone of an offshore plant,
A pair of wall plates spaced apart from each other;
A sealing material sealing the opening between the pair of wall plates;
A cover plate disposed on the front side of the sealing member for firstly blocking the opening;
A plurality of horizontal stiffeners disposed at regular intervals in a vertical direction on a rear surface of the wall plate; And
And a vertical stiffener installed in a direction crossing the plurality of horizontal stiffeners,
Wherein the pair of wall plates each have a connecting portion of a flat plate member protruding from the opening toward the rear,
The sealing member is fixedly coupled to the connection portion,
Wherein the connecting portion is supported by the plurality of horizontal stiffeners,
Wherein each of the plurality of horizontal stiffeners has an L-shaped cross section whose rear end is once bent, and a portion of the bent portion adjacent to the connecting portion has a corner cut shape. delete The method according to claim 1,
Wherein the seal has a U-shaped cross section that is convex towards the front. The method according to claim 1,
Wherein the sealing material is made of a refractory material having a flexible characteristic. 5. The method of claim 4,
Wherein the sealing material has a multi-layer structure and the middle layer is made of a steel mesh. delete

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