KR20210063966A - Helideck plank for easy installation of DIFFS nozzle - Google Patents

Abstract

The present invention relates to a helideck plank for easy installation of a firefighting nozzle. More specifically, the present invention relates to a helideck plank for easy installation of a firefighting nozzle for a deck integrated firefighting system (DIFFS) placed for extinguishing fire in a helicopter and a helideck on the helideck, which is able to secure structural stability and installation efficiency of the helideck at the same time. According to the present invention, the helideck plank for the easy installation of the firefighting nozzle comprises: a plate-shaped lower support unit which supports a lower side of the helideck plank; diagonal support units which include a pair of diagonal support plates extended to be inclined upward from both end units in a widthwise direction of the lower support unit; an upper flat plate unit which connects upper ends of the diagonal support units; a vertical support unit which includes a plurality of vertical support plates extended vertically from an upper surface of the lower support unit, and which is placed between the diagonal support units and supports the upper flat plate unit; a fastening unit protruding from both ends in a widthwise direction of the helideck plank to fasten the plurality of helideck planks with each other; and a nozzle installation unit placed to embed the firefighting nozzle in the central unit of the helideck plank, to penetrate the upper flat plate unit and the lower support unit, and to form horizontality with the vertical support unit.

Description

Helideck plank for easy installation of DIFFS nozzle

The present invention relates to a helideck flank for easy installation of a fire extinguishing nozzle, and more particularly, to a fire extinguishing nozzle for a deck integrated fire fighting system (DIFFS) provided for fire suppression in helicopters and helidecks. In installing on a helideck, it relates to a helideck flank that is easy to install with a fire extinguishing nozzle that can secure the structural stability of the helideck and the efficiency of installation work at the same time.

In general, merchant ships such as large container ships and crude oil tankers, and offshore plants such as drill ships and FPSOs (Floating, Production, Storage and Offloading), etc. Helicopter is required as an efficient and rapid means of transportation for the movement of people or materials on board because they stay or move.

Accordingly, in ships and offshore structures, helidecks are installed at the bow or stern for helicopters to take off and land, and the helicopters take off and land using the helidecks.

Here, the helideck may be largely composed of a pancake forming a deck floor for helicopters to take off and landing and a pancake support part supporting the pancake, and the pancake is an aluminum extrusion material of a trapezoidal cross section. As a take-off and landing surface connected to each other, other helideck accessories such as lighting facilities are installed, while the pancake support part is a pancake lower support structure that extends long in a direction intersecting the extension direction of the flank and is disposed below the flank to make the pancake part. It may include a plurality of aluminum H-beams supporting the aluminum H-beam and a plurality of steel H-beams extending in a direction crossing the extending direction of the aluminum H-beam and disposed below the aluminum H-beam to support the aluminum H-beam. .

On the other hand, if an accident occurs during take-off and landing of a helicopter on the helideck, there is a possibility that the helicopter or the helideck may cause a fire. In this case, rapid fire suppression is necessary to prevent an explosion or fire from spreading to the ship or offshore structure. is required

According to CAP 437, which stipulates on landing areas for helicopters at sea, in the event of a fire in helicopters and helidecks, a Deck Integrated Fire Fighting System (DIFFS) must be equipped to extinguish the fire as quickly as possible. do.

The integrated deck fire extinguishing system is generally installed on a helideck and includes a fire extinguishing nozzle for spraying a fire extinguishing liquid such as fresh water, sea water, or foam.

The fire extinguishing nozzle of the integrated deck fire extinguishing system is also called a DIFFS nozzle, and in order to prevent damage and failure due to collision with the helicopter's wheels or skid during landing, Korean Patent No. 10-1523915, Korea As known by Patent Registration No. 10-1533759, etc., when the fire is suppressed, when the integrated deck fire extinguishing system is activated, the nozzle baffle provided in the head of the fire extinguishing nozzle is pop-up by water pressure and It is formed in the form of spraying the extinguishing liquid and is buried on the helideck.

However, as shown in FIG. 1 , the conventional fire extinguishing nozzle 30 is installed on the flank 10 constituting the helideck, and the plurality of flanks 10 are inserted through and installed in the mutually fastened portion, so the fastening portion There is a disadvantage in that it is difficult to sufficiently secure the structural stability of the helideck because the part is cut or perforated.

In addition, in order to fix the fire extinguishing nozzle 30 on the helideck flank 10, various types of supports 20 can be installed, but the helideck flank 20 mainly has an inverted trapezoidal cross-section, so the support ( 20) to fix the inclined surface must be performed welding work, in this case, there is a problem in that the work space is narrow and the workability is reduced and the possibility of welding defects is increased.

Republic of Korea Patent Publication No. 10-1523915 (2015.05.22.) Republic of Korea Patent Publication No. 10-1533759 (2015.06.29.)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a fire extinguishing nozzle for a deck integrated fire fighting system (DIFFS) provided for suppression of fires in helicopters and helidecks as a helideck. In installing on the top, unlike in the prior art, since cutting or drilling is not required for a portion where a plurality of flanks are mutually fastened, structural stability of the helideck can be secured and sufficient working space can be secured. It is to provide a helideck flank that is easy to install with a fire extinguishing nozzle that can increase efficiency.

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

The present invention, in order to achieve the above object, a plate-shaped lower support portion for supporting the lower helideck flank; an oblique support part having a pair of diagonal support plates extending obliquely upward from both ends of the lower support part in the width direction; an upper plate part interconnecting the upper ends of the diagonal support part; a vertical support part having a plurality of vertical support plates extending vertically from the upper surface of the lower support part and positioned between the diagonal support parts to support the upper flat plate part; a fastening portion protruding from both ends of the helideck flank in the width direction so that a plurality of helideck flanks are fastened to each other; and a nozzle installation part disposed so that the fire extinguishing nozzle is embedded in the central part of the helideck flank, and formed to be level with the vertical support part through the upper plate part and the lower support part; can provide

Here, the nozzle installation part is installed to pass through the upper plate part and the lower support part to form a level with the vertical support part between a plurality of vertical support plates, and a hollow tubular nozzle sleeve so that the body of the fire extinguishing nozzle is inserted and installed. The upper end of the nozzle sleeve is fixed to the upper plate by welding, and the lower end of the nozzle sleeve is fixed by welding to the lower plate.

In addition, the nozzle sleeve is characterized in that it is formed of an aluminum material.

On the other hand, the nozzle installation part, sealant is applied to the upper surface of the nozzle sleeve, characterized in that the space spaced apart between the nozzle sleeve and the fire extinguishing nozzle is sealed.

In the present invention, in installing a fire extinguishing nozzle for a deck integrated fire fighting system (DIFFS) provided for fire suppression in helicopters and helidecks on a helideck, a plurality of flanks are mutually fastened unlike in the prior art. There is an advantage in that it is possible to secure the structural stability of the helideck as well as to secure a sufficient working space because no cutting or perforation is required for the part, so that the efficiency of the installation work can be increased.

1 is a cross-sectional view showing a state in which a fire extinguishing nozzle for an integrated deck fire extinguishing system is installed on a conventional helideck flank.
2 is a cross-sectional view showing a helideck flank for easy installation of a fire extinguishing nozzle according to a preferred embodiment of the present invention.
3 is a cross-sectional view showing a state in which the fire extinguishing nozzle for the integrated deck fire extinguishing system is installed on the helideck flank for easy installation of the fire extinguishing nozzle according to the preferred embodiment of the present invention.
4 is an enlarged partial detail view of the nozzle installation unit shown in FIG. 3;

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to the possessor, and the invention is only defined by the scope of the claims.

With reference to the accompanying drawings below will be described in detail for the implementation of the present invention. Regardless of the drawings, the same reference numerals refer to the same elements, and "and/or" includes each and all combinations of one or more of the recited items.

Although the first, second, and the like are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

The terminology used herein is for the purpose of describing the embodiments, and is not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, “comprises” and/or “comprising” do not exclude the presence or addition of one or more other elements other than the mentioned elements.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing a helideck flank for easy installation of a fire extinguishing nozzle according to a preferred embodiment of the present invention.

As shown in FIG. 2, the helideck flank 100 for easy installation of the fire extinguishing nozzle according to the preferred embodiment of the present invention is largely a lower support part 110, an oblique support part 120, and an upper plate part 130. , a vertical support unit 140 , a fastening unit 150 and a nozzle installation unit 160 .

The lower support part 110, the diagonal support part 120, the upper plate part 130, the vertical support part 140 and the fastening part 150 form the body of the helideck flank 100, Among them, the lower support part 110 , the diagonal support part 120 , and the upper plate part 130 form the outer edge of the helideck flank 100 .

On the other hand, the nozzle installation unit 160 is formed in the body of the helideck flank 100 serves to increase the efficiency of the installation work of the fire extinguishing nozzle for the integrated deck fire extinguishing system.

Specifically, the lower support part 110 is formed in a plate shape to form a lower surface of the helideck flank 100 , and serves as a structure supporting the lower portion of the helideck flank 100 .

A pair of diagonal support parts 120 extending upward, respectively, are formed at both ends of the lower support part 110 in the width direction, and form both side walls of the helideck flank 100 .

At this time, the pair of diagonal support parts 120 are formed to be symmetrical to each other with respect to a virtual central axis formed in the central portion in the width direction of the helideck flank 100, and are respectively predetermined to the outside of the helideck flank 100. formed at an angle of

On the other hand, the upper plate part 130 forms the upper surface of the helideck flank 100 by interconnecting the upper ends of the diagonal support part 120, and the upper outer periphery of the helideck flank 100, that is, the helideck flank ( By forming the upper surface of the 100) serves to horizontally distribute and support the external force applied to the helideck flank 100.

At this time, the upper plate portion 130 has a protrusion 131 protruding upward to improve the surface friction force of the upper surface of the helideck flank 100, thereby preventing the occurrence of safety accidents due to slipping on the helideck. can do.

In addition, a plurality of through-formed drainage grooves 134 having a narrower width toward the lower portion are formed in the upper plate portion 130 to drain rainwater, so that the helicopter can safely take off and land.

In other words, the helideck flank 100 is integrally formed with the lower support part 110 , the diagonal support part 120 , and the upper plate part 130 , and a pair of the diagonal support parts 120 formed symmetrically to each other. ) as the distance between each other gradually widens toward the upper side, the cross section of the helideck flank 100 is formed to have an upper end wide and narrower toward the lower end, that is, an inverted trapezoid shape. will be.

Meanwhile, the vertical support part 140 vertically supporting the upper flat plate part 130 is formed between the diagonal support parts 120 .

Specifically, the vertical support part 140 is formed by arranging a plurality of vertical support plates vertically extending from the upper surface of the lower support part 110 to the lower surface of the upper plate part 130 and spaced apart from each other at a predetermined distance. The lower side of the upper plate 130 supports the load applied to the helideck flank 100 due to the take-off and landing of the helicopter.

In addition, the fastening parts 150 are formed at both ends of the helideck flank 100 in the width direction, and a plurality of helideck flanks arranged adjacent to each other by the fastening parts 150 are mutually fastened to form a pancake shape. make it possible

Preferably, the fastening parts 150 and 150a having a shape corresponding to each other are formed on the upper portion of each one side of the diagonal support part 120 to protrude outward, and the helideck flank 100 disposed on one side in the width direction The fastening part 150a formed at the other end and the helideck flank 100 disposed on one side and the fastening part 150 formed on one side in the width direction of the helideck flank 100 disposed adjacent to each other are coupled to each other and fastened to each other will be.

On the other hand, the nozzle installation unit 160 provided to facilitate the installation of the fire extinguishing nozzle for the integrated deck fire extinguishing system is formed in the central portion of the helideck flank 100.

The nozzle installation unit 160 serves as a support for fixing when the fire extinguishing nozzle is buried on the helideck flank 100, and a hollow tubular nozzle sleeve 161 to insert and install the body of the fire extinguishing nozzle. ) and penetrating through the lower support part 110 and the upper plate part 130 to form a level with the vertical support part 120 .

Preferably, the nozzle sleeve 161 is installed to pass through the lower support part 110 and the upper plate part 130 , and the upper part is a first through hole 132 formed through the upper plate part 130 . ), and the lower end is disposed on the second through-hole 132a penetrating through the lower supporting unit 110 and installed to be parallel to the vertical supporting unit 120 .

At this time, the upper end of the nozzle sleeve 161 is welded to the upper flat part 130, and the lower end of the nozzle sleeve 161 is welded to the lower support part 110 to form a welding part formed at both ends of the nozzle sleeve 161 ( 162, 162a).

On the other hand, the body of the helideck flank 100 consisting of the lower support part 110, the diagonal support part 120, the upper plate part 130, the vertical support part 140 and the fastening part 150 is It can be formed of an aluminum material that can minimize damage to the helideck caused by fire when a fire occurs in the heli-tech while being suitable for light weight, and the nozzle sleeve 161 is also formed of an aluminum material, so that the helideck's Not only does it contribute to light weight and minimize the fire damage rate, but it is formed of the same material as the body of the helideck flank 100, so that galvanic corrosion or bimetallic corrosion by contact between dissimilar metal members ) can be prevented.

3 is a cross-sectional view showing a state in which the fire extinguishing nozzle for the integrated deck fire extinguishing system is installed on the helideck flank, which facilitates the installation of the fire extinguishing nozzle according to a preferred embodiment of the present invention, and FIG. 4 is an enlarged view of the nozzle installation part shown in FIG. It is a partial detail diagram shown.

The fire extinguishing nozzle for the integrated deck fire extinguishing system is mainly of a pop-up type, and when the fire extinguishing nozzle 30 is installed in the nozzle installation part 160, as shown in FIGS. 3 and 4, the nozzle The body of the fire extinguishing nozzle 30 is inserted into the sleeve 161 , and the head of the fire extinguishing nozzle 30 from which the fire extinguishing liquid is sprayed is seated on the upper flat plate 130 .

At this time, the sealant 163 is applied to the upper surface of the nozzle sleeve 161 to seal the space spaced apart between the nozzle sleeve 161 and the fire extinguishing nozzle 30 .

In addition, the sealant 163 preferably has flame retardancy or nonflammability so as not to discharge toxic substances in case of fire.

Although the embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You can understand that there is. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: helideck flank
110: lower support part
120: diagonal support part
130: upper plate part
140: vertical support
150, 150a: fastening part
160: nozzle installation part
161: nozzle sleeve
162, 162a: weld
163: sealant

Claims (4)

A plate-shaped lower support for supporting the lower helideck flank;
an oblique support part having a pair of diagonal support plates extending upwardly from both ends of the lower support part in the width direction;
an upper plate part interconnecting the upper ends of the diagonal support part;
a vertical support part having a plurality of vertical support plates extending vertically from the upper surface of the lower support part and positioned between the diagonal support parts to support the upper flat plate part;
a fastening part protruding from both ends of the helideck flank in the width direction so that a plurality of helideck flanks are fastened to each other; and
A helideck flank for easy installation of a fire extinguishing nozzle comprising a; disposed so that a fire extinguishing nozzle is buried in the central portion of the helideck flank, and a nozzle installation part formed to be level with the vertical support part through the upper plate part and the lower support part. The method of claim 1,
The nozzle installation part,
A hollow tubular nozzle sleeve is provided so as to pass through the upper plate part and the lower support part to form a level with the vertical support part between a plurality of vertical support plates, and to insert and install the body of the fire extinguishing nozzle,
The upper end of the nozzle sleeve is welded and fixed to the upper plate,
Helideck flank for easy installation of fire extinguishing nozzles, characterized in that the lower end of the nozzle sleeve is welded and fixed to the lower plate. The method of claim 2,
The nozzle sleeve is a helideck flank for easy installation of a fire extinguishing nozzle, characterized in that it is formed of an aluminum material. The method of claim 2,
The nozzle installation part,
Helideck flank for easy installation of fire extinguishing nozzles, characterized in that a sealant is applied to the upper surface of the nozzle sleeve to seal the space spaced apart between the nozzle sleeve and the fire extinguishing nozzle.

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