KR101540389B1 - Helideck having hatch - Google Patents

Abstract

A helideck with a hatch is disclosed. A helideck having a hatch according to an embodiment of the present invention includes a pancake unit for providing a place for takeoff and landing of a helicopter; A pancake support portion connected to a bottom portion of the pancake portion and supporting a bottom portion of the pancake portion; A deck support portion connected to a bottom portion of the pancake portion and supporting the pancake support portion; A hatch main body coupled to the access hole penetrating in the vertical direction of the pancake portion; And a collecting space disposed between the hatch side plate portion of the hatch body and the inner wall portion of the access hole, the hollow space being formed by combining the hatch body and the access hole.

Description

[0001] HELDECK HAVING HATCH [0002]

The present invention relates to a helideck with a hatch.

Generally, offshore plants such as drill ship, FPSO (Floating, Production, Storage and Offloading) or vessels that need to stay in the sea for a long time should operate helicopter , Which necessitates the installation of Helideck on the player or stern.

The helideck may be comprised of a pancake portion forming a deck floor where the helicopter takes off and landing and a pancake support portion supporting the pancake portion. The pancake portion may be formed by connecting a plurality of planks to each other so as to support the helicopter, or may be manufactured from a steel floor. The pancake support may include H-shaped beams capable of supporting the pancake portion.

For example, the pancake portion may be formed by connecting a plurality of flank of aluminum material extending in one direction. Further, the pancake supporting portion includes a plurality of aluminum H beams extending long in a direction intersecting the extending direction of the flanks and disposed below the flanks to support the pancake portion, an aluminum H beam extending long in a direction intersecting the extending direction of the aluminum H beam, And a plurality of steel H beams disposed below the beam to support the aluminum H beam. Here, the plank means an aluminum extruded material having a trapezoidal cross section, the pancake means an upper plate (take-off and landing surface) formed by connecting flanks, the pancake means a pancake made of flanks, and other helidecks And the pancake supporting portion may be an aluminum H beam on the bottom surface of the pancake and a steel H beam on the deck supporting portion, May refer to a backing structure connected to a deck house to support a heli deck that is an assembly of pancake and pancake supports.

Background Art [0002] There are patent documents such as helideck support of a drill ship. The patent document discloses a helideck in which beams of supports connected to the underside of the helideck are connected and fixed to the side walls of the deckhouse.

Also, in the prior art helideck, a temporary opening / closing port is formed and the thruster canister is lowered through the opened temporary opening / closing port. At this time, the descending direction of the thruster canister and the first vertical beam are located side by side, The problem of interference due to the first vertical beam and the problem of narrowing the space of the fork deck are solved.

However, the provisional opening of the helideck of the prior art can normally be closed by the hatch and can be opened during installation or maintenance of the thruster canister.

In particular, a recess type tie down is required for securing the landing helicopter to the pancake portion of the helideck in the hatch for the temporary access door and the surrounding pancake portion.

If a drain is provided in each tie down so as to discharge a fluid such as rainwater or the like that has flowed into the interior of the recessed tie down body to the outside of the heliDeck, Drain and drain pipes are to be piped to the recessed tie downs provided in the pancake area.

However, in the prior art, only the temporary opening / closing port is referred to, or only the general technical idea that the temporary opening / closing port can be closed to the hatch is implied. In the recessed tie down, drain and drain pipes of the temporary opening / There is no content about the configuration of the helicopter, so it may be difficult to actually fix the helicopter to the helideck of the prior art.

Further, the prior art does not mention a method of detachably mounting the hatch at the temporary opening / closing port.

Even if a recessed tie down is provided at the temporary opening and closing port, the drain pipe coupled to the recessed tie down should also be disassembled when the temporary opening and closing port is separated from the pancake portion for installation or maintenance of the thruster canister Complex work is required.

Particularly, the pancake portion of the helideck of the prior art is supported on the support and is installed in a floating state in the air, spaced apart from the deck of the hull of the floating structure in order to secure the safety of the operation of the helicopter.

Therefore, the operator responsible for the drain pipe dismantling operation must perform a very dangerous drain pipe disconnection operation in the air before separating the temporary door hatch from the pancake portion. In this case, safety problems of the operator and physical discomfort are caused .

Furthermore, there is a problem that the worker must approach the underside of the pancake part of the heli-deck itself or, if possible, work in very dangerous conditions.

Published patent application No. 10-2012-0051330

An embodiment of the present invention is characterized in that it comprises a hatch body to be attached to an access hole of a pancake part so as to be attachable to the hatch body, a first drain pipe piped to a recessed tie down of the hatch body, It is not necessary to perform the separation or disassembly operation of the first drain pipe and the second drain pipe when the hatch is separated from the access hole, To provide a helical deck having a hatch capable of connecting or disconnecting the hatch body and the access hole from the upper part of the pancake part.

According to an aspect of the present invention, there is provided a pancake unit for providing a place for takeoff and landing of a helicopter; A pancake support portion connected to a bottom portion of the pancake portion and supporting a bottom portion of the pancake portion; A deck support portion connected to a bottom portion of the pancake portion and supporting the pancake support portion; A hatch main body coupled to the access hole penetrating in the vertical direction of the pancake portion; And a helical deck provided with a hatch including a hatch body and an access hole formed therein, the hatch comprising a hatch side plate portion of the hatch body and a catch portion disposed between the inner side wall portion of the access hole .

Also, the hatch main body may include a planar hatch upper plate portion that can be inserted into the access hole; A hatch reinforcing plate portion vertically connected to the bottom surface of the hatch upper plate portion and spaced apart from the hatch upper plate portion in the extending direction of the hatch upper plate portion; A lower hatch plate connected to a lower end of the hatch reinforcing plate, the lower hatch plate being smaller than a plane of the hatch upper plate; The hatch side plate portion extending in a vertical direction at an edge of the lower hatch plate portion and connected to a bottom surface inside the rim of the hatch upper plate portion; A bracket portion projecting horizontally from a lower portion of the hatch side plate portion; And a sealing portion coupled to a bottom surface of the bracket portion and extending along an outer periphery of the hatch body.

Further, the access hole may include a seating part positioned below the sealing part so as to contact the sealing part; An inner wall portion vertically connected to the upper surface of the seating portion; A pancake top plate connected to the top of the inner wall; And a stop portion provided at a corner between the pancake upper plate portion and the inner wall portion.

The hatch main body may include a dog assembly installed at a corner between the hatch upper plate portion and the hatch side plate portion so as to be locked or released to the stationary jaw portion.

Also, the dog assembly may include a plurality of openings provided on a rim of the hatch upper plate portion; A dog bracket positioned below the opening and coupled to the hatch side plate portion; A shaft rotatably coupled to the pin hole of the dog bracket; A shaft head coupled to an upper end of the shaft and having a smaller planar dimension than the opening; And a stopper coupled to the shaft vertically and locking or releasing the stopper in response to the rotation of the shaft.

The hatch main body may include a recessed tie down provided in an installation groove of the hatch upper plate portion; And a first drain pipe extending to the bottom of the recessed tie down and extending from the bottom of the recessed tie down to the inner space of the catcher.

The access hole may include a second drain pipe extending through the upper surface of the seating portion, which is the bottom of the collecting portion, so as to discharge the fluid in the collecting portion.

Further, the water collecting part may have a ring shape extending along the outer periphery of the hatch body.

A helideck having a hatch according to an embodiment of the present invention has a plurality of openings in a hatch top plate portion of a hatch body, and a dog assembly for connecting or disconnecting the hatch body and the access hole inside the opening portion It is possible to easily carry out the work of separating the hatch main body from the access hole by the operator.

In this embodiment, a plurality of recessed tie downs are provided on the upper portion of the hatch main body, so that the landed helicopter can be easily fixed, and the first drain pipe connected to the bottom of the recessed tie down It is possible to easily discharge the fluid that has flowed into the interior of the shock-type tie down.

That is, in this embodiment, the first drain pipe of the recessed tie down of the hatch body extends to the catching portion located between the hatch side plate portion of the hatch body and the inner wall portion of the access hole via the inside of the hatch body, The two drain pipes are connected from the bottom of the collecting part to the drainage path provided in the pancake part via the inside of the pancake part.

Particularly, the water collecting portion of the present embodiment is a hollow space that is made to be filled with fluid when the hatch body and the access hole are coupled to each other. Therefore, when separating the hatch body from the access hole, There is no need to separate the first drain pipe and the second drain pipe.

 A hatch bracket is further provided in a lower portion of the hatch side plate portion of the hatch main body in the vicinity of the water collecting portion of the present embodiment. Between the bottom face of the hatch bracket portion and the upper face of the seating portion of the access hole of the pancake portion Since there is further provided a sealing portion for preventing water leakage, the water leakage phenomenon of the fluid may not occur even in the water collecting portion formed by the coupling.

This embodiment of the present invention can naturally discharge the recessed tie down fluid through the second drain pipe, the collecting portion and the second drain pipe pierced through the bottom surface (e.g., the upper surface of the receiving portion) of the collecting portion .

1 is a side view of a helideck with a hatch according to the present invention.
2 is a plan view of the pancake portion and the hatch body shown in Fig.
3 is a cross-sectional view of line AA shown in Fig.
FIG. 4 is a cross-sectional view showing the separated state of the access hole and the hatch body of the pancake portion in FIG.
5 is a cross-sectional view of line BB shown in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a perspective view of a helideck with a hatch according to the present invention.

1, a helideck with a hatch according to the present embodiment (hereinafter referred to as " present embodiment ") comprises a front surface of a hull of a ship 10, such as a deck house 11 As shown in FIG.

The present embodiment may include a deck support 100 corresponding to a backing structure (e.g., a vertical or inclined post) connected to the deckhouse 11 and a pancake support 200 connected above the deck support 100 .

The deck support 100 may be connected to the bottom of the pancake support 200 to support the pancake support 200.

The pancake support unit 200 may be connected to the bottom of the pancake unit 300 to support the pancake unit 300. The pancake support 200 may include a first beam 210 and a second beam 220. The first beam 210 may refer to a plurality of aluminum H beams that support the pancake 300 connected to the bottom of the pancake 300. The upper portion of the first beam 210 may be connected to a flank corresponding to a unit component of the pancake unit 300. The second beam 220 may refer to a plurality of steel H beams that extend elongate in a direction that intersects the extending direction of the first beam 210 and are disposed below and connected to the first beam 210.

The pancake unit 300 may serve to provide a place for the take-off and landing of the helicopter. The pancake unit 300 includes a pancake which is an upper plate (for example, a take-off and landing plane) formed by connecting plank units as unit components, and other accessories for helidecks installed in the pancake (for example, safety net, Drainage line, lighting equipment, etc.].

In addition, the vessel 10 may have a thruster canister 12 corresponding to a propulsion device, such as an omnidirectional propeller.

At this time, the thruster canister 12 may be positioned such that the thruster portion 13 is located below the line bottom of the ship 10 during operation, and the trunk 15 together with the canister portion 14 for maintenance purposes (For example, lifting by a crane or self-driving device).

At this time, the extending direction of the trunk 15 is in a position where it can interfere with the pancake portion 300 of the helideck existing thereon.

In this situation, when the crane needs to lift the entire thruster canister 12 including the thruster portion 13 and the canister portion 14 and move it to the outside of the trunk 15, the pancake portion 300 of the heli- It is necessary to pass through the access hole 310 corresponding to the hatch 400 in the vertical direction. The hatch 400 refers to the hatch main body 410 coupled to the access hole 310 of the pancake unit 300. The hatch 400 includes the canister portion 14 or the thruster portion 13 of the thruster canister 12, Can pass through. Further, the hatch main body 410 may be configured to be attachable or fixable as a cover of the access hole 310. [

2 is a plan view of the pancake portion and the hatch body shown in Fig.

Referring to FIG. 2, the present embodiment includes a hatch main body 410 and a periphery thereof so as to fix a landed helicopter (not shown) to a helideck, Down type tie downs 500 and 510 can be provided.

The recessed tie downs 500 and 510 are designed to fix a helicopter and may include a strap, a rope, and the like for fixing a helicopter used for common use. And may be installed in an insertion groove that is spaced throughout the pancake portion 300.

The recessed tie downs 500 and 510 may comprise a container-shaped casing and connecting pins connecting the inner surfaces of both sides of the casing with each other, as disclosed in Korean Utility Model Registration No. 20-0460670 , Korean Patent Application No. 10-2013-0091744, and therefore can be omitted in this description.

The recessed tie downs 500 and 510 may be formed in the recessed tie downs 500 and 510 through a drain pipe line to a drainage path (not shown) provided in the pancake portion 300, It is possible to drain the fluid (for example, rainwater) introduced into the casing.

Particularly, when the hatch body 410 is separated from the access hole 310, it is unnecessary to dismantle the portion corresponding to the boundary between the hatch body 410 and the access hole 310 among the above-mentioned drain pipelines, It is possible to provide the catching part 600 made by combining the hatch body 410 and the access hole 610 (for example, insertion in the vertical direction).

The collecting part 600 is a hollow space made to allow fluid to be filled, and may have a ring shape extending along the outer periphery of the hatch body 410.

3 is a cross-sectional view of line A-A shown in Fig.

Referring to FIG. 3, the hatch body 410 may be coupled to the access hole 310 penetrating in the vertical direction of the pancake portion 300.

The collecting portion 600 is a hollow space formed by combining the hatch main body 410 and the access hole 310. The collecting portion 600 includes the hatch side plate portion 414 of the hatch main body 410 and the inner side wall portion 414 of the access hole 310, (Not shown).

The hatch main body 410 includes a planar hatch upper plate 411 that can be inserted into the access hole 310 and a hatch upper plate 411 vertically connected to the bottom of the hatch upper plate 411 and extending along the extending direction of the hatch upper plate 411 And a hatch reinforcing plate portion 412 spaced apart from each other.

The hatch main body 410 has a lower hatch plate portion 413 which is smaller than the planar portion of the hatch upper plate portion 411 and is connected to the lower end of the hatch reinforcing plate portion 412, And may include a hatch side plate portion 414 connected to the bottom surface inside the rim of the hatch top plate portion 411.

The hatch body 410 may also include a bracket portion 415 protruding horizontally from a lower portion of the outer surface of the hatch side plate portion 414, that is, below the hatch side plate portion 414. [

The projecting horizontal distance of the bracket portion 415 can be set within a range that does not hinder the stopping jaw 315 provided in the access hole 310 when the hatch main body 410 is inserted into the access hole 310. [

The bracket portion 415 also extends along the outer periphery of the hatch body 410 and is fixed to the outer surface of the hatch side plate portion 414 by welding so as to have a water tight structure 415 .

The hatch body 410 may also include a sealing portion 416 coupled to the bottom surface of the bracket portion 415 and extending along the periphery of the hatch body 410.

The sealing portion 416 serves to prevent the fluid of the collecting portion 600 from leaking through the gap g between the lower end of the hatch side plate portion 414 and the upper surface of the seating portion 311 of the access hole 310 .

The access hole 310 may include a seating portion 311 located below the sealing portion 416 and corresponding to the bottom of the collecting portion 600 so as to contact the sealing portion 416.

The mounting portion 311 may mean a supporting step or a supporting bracket for supporting the hatch main body 410 fitted in the access hole 310 and may be a bracket for supporting the inner structural member 300 of the pancake portion 300 around the access hole 310. [ As shown in FIG.

The access hole 310 is formed in an inner wall portion (not shown) which is vertically connected to the upper surface of the seating portion 311 in a state in which a hollow space for the water collecting portion 600 or a space in which the bracket portion 415 can be positioned is secured, 312). The connection points or corners of the seating portion 311 and the inner wall portion 312 may be connected by welding to have a water tight structure 313 as well.

The access hole 310 may include a pancake top plate 314 connected or welded to an upper end of the inner wall portion 312.

The access hole 310 may include a stopping step 315 provided at a corner between the pancake upper plate 314 and the inner wall 312.

The hatch body 410 may include a dog assembly 700 installed at a corner between the hatch upper plate portion 411 and the hatch side plate portion 414 so as to be locked or released to the stopping portion 315.

As shown in FIG. 2, the dog assembly 700 may include a plurality of the dog assemblies 700 spaced from each other along the outer periphery of the hatch body 410, and the hatch body 410 may be detachably fixed to the access hole 310 Which may be a clamping means.

3, the dog assembly 700 includes a plurality of openings 710 provided on the edge of the hatch upper plate 411 and a plurality of openings 710 located below the openings 710 and coupled to the hatch side plate portion 414. [ A dog bracket 720 may be included.

The dog assembly 700 also includes a shaft 730 rotatably coupled to the pin hole 721 of the dog bracket 720 and a shaft 730 coupled to the upper end of the shaft 730, A shaft head 740 having a shaft 740 and a shaft 740 coupled to the shaft 740 and a shaft 740 coupled to the shaft 740, And a stopper 750 which is released from the lower portion of the jaw 315 and is released.

The operator can enter a tool (not shown) (e.g., a socket wrench) through the opening 710 and place the tool in the upper portion of the pancake portion 300 or the hatch body 410, The hatch main body 410 can be easily detached from the access hole 310 by rotating the tool while being fastened to the access hole 310. [

FIG. 4 is a cross-sectional view showing the separated state of the access hole and the hatch body of the pancake portion in FIG.

4, an operator may connect a lifting cable provided on a crane or the like to a recessed tie down 500 (see FIG. 2) of the hatch body, and then apply a lifting force to the hatch body 410 in a vertical direction have.

At this time, the stopper 750 of the dog assembly 700 of the hatch body 410 is in a releasing state that is not caught by the stopping jaw 315, so that the hatch body 410 can be separated from the access hole 310.

In this case, the collecting part 600 made by the above-mentioned combination becomes a general empty space, and it becomes a state where it is difficult to collect the fluid.

However, since the collecting part 600 is disassembled into two structures naturally by the separation between the hatch body 410 and the access hole 310, in this embodiment, even when the operator disconnects the hatch body 410 There is no need to perform additional work to dismantle the drain pipeline mentioned.

This will be described in detail with reference to FIG.

5 is a cross-sectional view taken along the line B-B shown in Fig.

Referring to FIG. 5, the hatch body 410 may include a recessed tie down 510 installed in an installation groove 411a of the hatch top plate 411. The recessed tie down 510 includes a casing 511 having a top opened as a container type and a connecting pin 512 coupled to the casing 511, that is, connecting inner sides of both sides of the casing 511 to each other .

The hatch body 410 is piped to the bottom of the recessed tie down 510 and includes a first drain pipe 800 extending from the bottom of the recessed tie down 510 to the interior space of the catcher 600, . ≪ / RTI > The first drain pipe 800 may have a downward slope C for smooth drainage.

The first drain pipe 800 may penetrate the hatch reinforcement plate 412 and / or the hatch side plate portion 414 to extend to the inner space of the catcher 600. [ In such a penetration, a hollow tube-shaped pipe penetrating member (not shown), which can form a hole in the wall of the block and can be inserted into the hole and fixed around the hole by the flange, can be used.

That is, the inlet of the first drain pipe 800 is connected to the bottom of the bottom of the recessed tie down 510, that is, the outlet of the first drain pipe 800 is connected to the inner space of the collector 600 Lt; / RTI >

Accordingly, the fluid introduced into the casing 511 of the recessed tie down 510 can flow into the collector 600 through the first drain pipe 800.

Particularly, the access hole 310 includes a second drain pipe 810 pierced through the upper surface of the seating part 311, which is the bottom of the collecting part 600, to discharge the fluid from the collecting part 600 can do. Here, the second drain pipe 810 may extend to a drain (not shown) provided in the pancake unit 300. The second drain pipe 810 may also have a downward slope.

The first drain pipe 800 moves together with the hatch main body 410 and the second drain pipe 810 moves to the pancake part 300 even though the hatch body 410 is separated from the access hole 310 in this embodiment When the hatch main body 410 is separated from the access hole 310, the conventional method of disassembling the connecting member between the pipe member on the side of the hatch body 410 and the pipe member on the side of the pancake unit 300 .

The fluid inside the recessed tie down 510 flows into the collector 600 through the first drain pipe 800 and is held watertight by the sealing portion 416. Therefore, (Not shown).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

100: deck support 200: pancake support
300: Pancake part 310: Access hole
400: Hatch 410: Hatch Body
416: sealing part 500, 510: recessed tie down
600: collecting part 700: dog assembly
800: first drain pipe 810: second drain pipe

Claims (8)

A pancake portion providing a place for takeoff and landing of the helicopter;
A pancake support portion connected to a bottom portion of the pancake portion and supporting a bottom portion of the pancake portion;
A deck support portion connected to a bottom portion of the pancake portion and supporting the pancake support portion;
A hatch main body coupled to the access hole penetrating in the vertical direction of the pancake portion; And
And a catching portion disposed between the hatching side plate portion of the hatch body and the inner wall portion of the access hole, wherein the catching portion is formed by combining the hatch body and the access hole,
The hatch main body,
A planar hatch top plate portion that can be inserted into the access hole;
A hatch reinforcing plate portion vertically connected to the bottom surface of the hatch upper plate portion and spaced apart from the hatch upper plate portion in the extending direction of the hatch upper plate portion;
A lower hatch plate connected to a lower end of the hatch reinforcing plate, the lower hatch plate being smaller than a plane of the hatch upper plate; And
And a hatch including a hatch side plate portion extending in a vertical direction from a rim of the lower hatch plate portion and connected to a bottom surface of the inside of a rim of the hatch upper plate portion. The method according to claim 1,
The hatch main body,
A bracket portion projecting horizontally from a lower portion of the hatch side plate portion; And
And a sealing portion coupled to a bottom surface of the bracket portion and extending along an outer periphery of the hatch body. 3. The method of claim 2,
The access hole being positioned below the sealing portion so as to be in contact with the sealing portion;
An inner wall portion vertically connected to the upper surface of the seating portion;
A pancake top plate connected to the top of the inner wall; And
And a stopper provided at a corner between the pancake upper plate portion and the inner side wall portion. The method of claim 3,
And a dog assembly installed at a corner between the hatch top plate portion and the hatch side plate portion so that the hatch main body is locked or released to the stationary jaw portion. 5. The method of claim 4,
The dog assembly includes a plurality of openings provided on a rim of the hatch upper plate portion;
A dog bracket positioned below the opening and coupled to the hatch side plate portion;
A shaft rotatably coupled to the pin hole of the dog bracket;
A shaft head coupled to an upper end of the shaft and having a smaller planar dimension than the opening; And
And a stopper which is vertically coupled to the shaft and is locked or released to the stopping jaw in response to rotation of the shaft. The method of claim 3,
Wherein the hatch body includes a recessed tie down provided in an installation groove of the hatch upper plate portion; And
And a first drain pipe extending to the bottom of the recessed tie down and extending from the bottom of the recessed tie down to the inner space of the catcher. The method of claim 3,
And the access hole includes a second drain pipe pierced through the upper surface of the seating portion which is the bottom of the collecting portion, so as to discharge the fluid in the collecting portion. 8. The method of claim 7,
Wherein the water collecting part has a hatch having a ring shape extending along an outer periphery of the hatch body.

Images