KR101498211B1 - Helideck having one body type drainage - Google Patents

Abstract

A helideck having an integral drain canal is disclosed. A helideck having an integrated drainage duct according to an embodiment of the present invention is a helideck having an integrated drainage path including a helicopter landing and landing and including a pancake wherein the pancake includes at least one first drainage hole for introducing fluid, At least one flange including a fluid collecting portion communicating with the outside via a first drain hole, and a fluid storing portion communicating with the fluid collecting portion through at least one second drain hole; A finishing plate coupled to an end of the flank to store fluid in the fluid storage; And a discharge pipe piped to pass through the finishing plate.

Description

[0001] HELDECK HAVING ONE BODY TYPE DRAINAGE [0002]

The present invention relates to a helideck having an integrated drainage passage and a drainage passage provided integrally with the pile cage of Helideck to provide an integrated drainage passage for rapidly discharging the fluid such as rainwater or oil discharged from the helicopter. will be.

With the accelerated development of deep-sea energy and changes in the environment both inside and outside the country, marine projects are becoming increasingly important.

Helicopters are used as efficient means of transport for floating projects or hulls for offshore projects where many crews must stay in distant seas for a long time and helicopters for helicopter takeoff and landing are installed.

Helidecks are an important means of access to helicopters and emergency escape structures.

The helideck may include a pan cake corresponding to the deck floor where the helicopter takes off and land and a pillar structure supporting the pancake. Here, the pancake may include a pancake substructure having a bottom plate shape connecting plank to each other, and a pancake substructure having an H beam or girder coupled to the lower end of the flank. One end (e.g., upper portion) of the pillar structure may be connected to a beam or girder that is a pancake substructure, and the other end (e.g., lower portion) of the pillared structure may be connected to the hull.

In the helideck and the ship having the helideck as a background of the invention, the helideck is provided on the floating structure or the ship so that the helicopter can be taken off and landed, and the fueling hose supplying fuel to the helicopter can be passed from the lower part to the upper part And a water jacket provided separately at the end of the deck floor, wherein the water jacket is provided at the outer side of the floor of the helideck, and at least one roller is installed in the rim of the entrance, gutter.

However, since the water gutter of the prior art is provided so as to protrude along the outer end of the pancake, there is an inconvenience that the structure design of the pancake, the structure design of the water gutter, and the joint construction between the pancake and the water gutter must be separately performed.

In addition, the upper surface of the pancake frequently landing and landing helicopter may be locally deformed, and may contain fluids such as rainwater, fuel discharged from a helicopter or the like.

At this time, the water gutter is installed at a position more protruded than the outer edge of the pancake. When the fluid such as fuel discharged from the rainwater or the helicopter on the upper surface of the pancake flows to the outer edge of the pancake, The discharge or drainage performance is very poor.

Published Utility Model Publication No. 20-2012-0008658

The embodiment of the present invention provides a drainage path integrally provided in a plank, which is a unit structure constituting a pancake of heli-deck, so that a fluid such as rainwater or fuel on the upper surface of the pancake is directly stored in a fluid storage To provide a heli-deck having a sensor unit that can be inflowed to and temporarily stored in the reservoir and temporarily stored, or a sensor unit that opens or closes the solenoid valve by manual control, and an integrated drain can drain fluid from the fluid reservoir to the outside of the pancake do.

According to one aspect of the present invention, there is provided a helideck having an integrated drainage path, wherein the helicopter takes off and landing and includes a pancake, wherein the pancake includes at least one first drain hole for inflow of fluid, At least one flank including a fluid collecting portion which communicates, and a fluid storing portion which communicates with the fluid collecting portion through at least one second discharging hole; A finishing plate coupled to an end of the flank to store fluid in the fluid storage; And a drainage duct that is piped to pass through the finishing plate.

Further, the flank includes: a top plate having the first drain hole spaced apart along the longitudinal direction of the flank; A pair of outer plates extending obliquely at both sides of the bottom surface of the top plate; A lower plate connected to a lower end of the pair of outer plates and spaced from and parallel to the upper plate and having a width shorter than a width of the upper plate; A pair of diaphragms spaced from each other at an inner position of the pair of outer plates and connected to each other while reinforcing the upper plate and the lower plate; And a partition plate having a vertical part positioned in the middle of the pair of diaphragms, a first channel part having an inverted triangle located at an upper end of the vertical part, and a second channel part having a triangular shape located at a lower end of the vertical part.

The first channel portion may include one side sloped wall and the other side sloped wall having a V-shaped cross-sectional shape extending along the longitudinal direction of the flank, and the second drain hole may penetrate the one side sloped wall and the other side sloped wall As shown in FIG.

In addition, the fluid collecting part may be partitioned by the first channel part and the upper plate to form a space for collecting the fluid.

In addition, the fluid reservoir may be divided by the partition plate under the fluid collecting portion to form a space capable of storing the fluid.

The fluid storage unit may include a sensor unit for sensing a level of a fluid to be stored in the fluid storage unit.

In addition, the discharge pipe may be provided with a valve portion for opening and closing the discharge pipe corresponding to the presence or absence of detection of the fluid by the sensor portion.

The fluid discharge device further includes a fluid transportation device for sucking the fluid from the fluid storage part and the discharge pipe and discharging the fluid to the outside when the valve part is opened according to sensing or manual control of the sensor part .

The flank may further include a wire passing portion which is spaced apart from the bottom surface of the upper plate and is separated by a horizontal plate connecting between the diaphragm and the outer plate.

In addition, the flank may have an inclined surface formed on the periphery of the first drain hole.

Further, the flange may include a plug hole formed in the lower plate so as to be threadably engaged; And a bottom plug detachably threaded to the plug hole.

The helideck may further comprise: a lower structure coupled with the pancake; And a pillar structure coupling the lower structure and the hull.

In addition, the substructure may have an integral drain passage coupled with the flank.

The helideck having the integrated drainage duct according to the embodiment of the present invention can solve the problem of fluid accumulation when the top surface of the pancake is not completely flat due to the helicopter landing and landing, unlike the case of manufacturing the pancake, It can be temporarily stored and discharged to the inside.

That is, in this embodiment, after the fluid such as rainwater or fuel on the upper surface of the pancake is directly introduced into the collection part through the first drain hole of the pancake, the introduced fluid flows into and stored in the fluid storage part through the second drain hole Therefore, the fluid on the upper surface of the pancake flows into the inside of the pancake without being flowed to the outer edge of the pancake, and can be easily treated, so that the discharge performance of the fluid can be maximized.

In addition, in this embodiment, even if an accident occurs in which a combustible fluid such as a fuel is leaked from a helicopter or the like in case of emergency, the fluid discharge device can be actuated to forcibly discharge the fluid in the fluid storage portion of the pancake. There is an effect to prevent.

1 is a perspective view of a helideck having an integrated drainage duct according to a first embodiment of the present invention installed in a floating structure.
FIG. 2 is a perspective view showing a coupling relation of the pancake of the helideck shown in FIG. 1; FIG.
FIG. 3 is a cross-sectional view for explaining fluid flow in the pancake shown in FIG. 2. FIG.
FIG. 4 is a view for explaining the process of discharging the fluid temporarily stored in the fluid storage portion of the pancake shown in FIG. 2 to the outside.
5 is a cross-sectional view of a flank of a helideck having an integrated drainage duct according to a second embodiment of the present invention.
6 is a cross-sectional view of a flank of a helideck having an integrated drainage duct according to a third embodiment of the present invention.

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.

1st Example

1 is a perspective view of a helideck having an integrated drainage duct according to a first embodiment of the present invention installed in a floating structure.

Referring to FIG. 1, the helideck may be configured to include a pancake 10 having an integrated drainage channel and a pillar structure 30, and may be used as a place for taking off and landing the helicopter in the hull 20.

Here, the starting point of the integrated drainage path of the pancake 10 may be the first drain hole 111 provided on the upper surface of the pancake 10. The first drain holes 111 may be distributed or arranged throughout the pancake 10.

In the description of the present embodiment, the hull 20 may be a drillship (FPSO, War ship, etc.), but considering that the floating floating structure is included in the range of the vessel, .

For reference, the pancake 10 and pillar structure 30 shown in the view of FIG. 1 are schematically illustrated for convenience of description. For example, the pillar structure 30 is a structure that can be selected from existing structures of various types. Therefore, in the following description, the pancake 10 will be described in detail with reference to FIG. 2 to FIG.

FIG. 2 is a perspective view showing the coupling relationship of the pancake of the helideck shown in FIG. 1, FIG. 3 is a sectional view for explaining fluid flow in the pancake shown in FIG. 2, and FIG. 4 is a cross- FIG. 3 is a view illustrating a process of discharging a fluid temporarily stored in a fluid storage unit to the outside. FIG.

Referring to FIG. 2, the pancake 10 must have an area sufficient for the helicopter to be taken off and landed, as determined in the air rule, so that the pancake 10 may be practically difficult to be integrally manufactured at a factory or the like so as to have a volume corresponding to the area have.

Therefore, in the present embodiment, the flank 100, 100a, 100b may be a plurality of unit structural members mass-produced by extrusion molding of an alloy material (for example, an aluminum alloy). For example, an extrusion method is a molding method in which a raw material is fed to an extruder and is pushed out of a mold to convert the continuous material into a continuous body having a predetermined cross-section. In the molding method, a thermoplastic resin and an aluminum material such as the present embodiment can be used to continuously produce a specific shape As a result, continuous production and rapid production are possible, which can reduce the overall temporal or cost loss.

Each of the flanks 100, 100a and 100b includes at least one first drain hole 111 for flowing fluid, a fluid collecting portion 103 communicating with the outside through the first drain hole 111, And fluid reservoirs 104 and 105 communicating with the fluid collecting part 103 through drain holes 174 and 175 to be connected to each other to form a pancake 10 of the helideck.

That is, the flanks 100, 100a, and 100b can be assembled together so that the adjacent pancakes 10 (see FIG. 1 in parallel with FIG. 2) can be completed.

At this time, the coupling between the flanks 100, 100a, 100b can be coupled in such a manner that the projection 101 of the flank 100a on one side is slidably inserted into the projection groove 102 of the flank 100b on the other side.

At this time, the coupling between the flanks 100, 100a, 100b can be made based on the longitudinal direction (X-axis direction) of the flank 100, 100a, 100b. In order to maximize the airtightness between the projection 101 and the projection groove 102, a convex portion 101a is further formed on the upper surface of the projection 101, and a convex portion 101a is formed at a position The protrusion groove 102 may further have a recess 102a. Here, the projection 101, the convex portion 101a, the projection groove 102, and the concave portion 102a may extend along the longitudinal direction (X-axis direction) of the flank 100, 100a, 100b. Since the convex portion 101a and the concave portion 102a form a relatively large surface area and a curved air gap in comparison with the surface area of the projections 101 and the projection grooves 102, .

When the paired claws 100, 100a and 100b are connected to each other and become the pancake 10, they may be a flat projection reference octagonal structure as shown in Fig. 1, but not necessarily an octagonal structure, The right range for the shape structure of the pancake 10 at least at the time of the planar projection can be changed to the shape shown in Fig. 1 (a) But may not be limited to the shape.

On the other hand, the interlaced flank 100, 100a, 100b of the pancake 10 can be supported by the pancake substructure 200. For reference, the pancake substructure 200 may be supported by the pillars structure 30 shown in FIG. That is, the fan-cave substructure 200 (FIG. 2) may be coupled between the bottom of the flank 100, 100a, 100b and the pillar structure 30 extending from the hull 20.

2 and 3, the pancake substructure 200 includes a first support 230 supported by a deck or pillar structure of the hull, a second support 230 disposed above the first support 230 to support the flank 100, And a second support body 210 connecting the first support body 230 and the second support body 100b.

The fingers 100, 100a and 100b are made of aluminum (Al) alloy. The first support 230 and the second support 210 are made of stainless steel and can prevent flame propagation. (Not shown) with a fireproof material.

In this embodiment, the first and second supports 230 and 210 are made of an H-type beam or a girder member, and are arranged to form a layer of a planar projection image, (Not shown).

The flanks 100, 100a and 100b may also be mounted on the second support 210 by using other bolts 142 and bolt holes 141 and 212.

Thus, since the flank 100, 100a, 100b, the first support body 230, and the second support body 210 can reduce the welding work by the bolt connection, the convenience of the operation can be increased, Therefore, it is advantageous for maintenance.

A joint pad 220 is further interposed between the first support body 230 and the second support body 210 and then coupled with the bolts 211. When the bolts 211 are coupled after using the joint pad 220 as in the present embodiment, the bonding strength between the first and second supports 230 and 210 is further increased to form a stable bottom structure. Of course, this is one way to reinforce the strength and may be omitted in construction.

As shown in FIG. 2, finishing plates 108 and 109 may be coupled to ends of the flank 100b so that fluid can be stored in the fluid collecting unit 103 and the fluid storing units 104 and 105 have.

Here, the finishing plate 109 can be joined by welding with the end of the ordinary fixing method, for example, the flank 100b.

The finishing plate 109 is formed with a plumbing hole 109a through which the discharge pipe 300 or other pipe member or tube of FIG. 4 is connected so that the fluid can be discharged outside the flank 100b Can be.

3, the fluid F on the upper surface of the pancake 10 is integrally formed in the flank 100 through the first drain hole 111, thereby forming a fluid collecting part 103 And then is introduced into the flank 100 through the second drain holes 174 and 175 so as to be integrated into the fluid storage portion 104 and 105 corresponding to the other portion of the drain.

The flank 100 includes a top plate 110 having a first drain hole 111 spaced apart along the longitudinal direction of the flank 100 and a pair of elongated slopes A lower plate 140 connected to the lower ends of the outer plates 120 and 130 and spaced apart from the upper plate 110 and having a width shorter than the width of the upper plate 110; ).

The flanks 100 are spaced apart from each other at an inner position of the pair of outer plates 120 and 130 so that the pair of plates 150 and 160 connected to each other while reinforcing the upper plate 110 and the lower plate 140 ).

The flank 100 includes a vertical portion 171 located in the middle of the pair of diaphragms 150 and 160, a first channel portion 172 of an inverted triangle positioned at the upper end of the vertical portion 171, And a partition plate 170 having a triangular second channel portion 173 located at the lower end of the vertical portion 171.

A pair of upper ends of the first channel portions 172 of the partition plate 170 are integrally connected to the bottom surface of the upper plate 110 and a lower end of the pair of second channel portions 173 is connected to the lower plate 140, respectively.

The first channel part 172 includes one side sloped wall 172a and the other side sloped wall 172b having a V-shaped cross-sectional shape extending along the longitudinal direction of the flank 100 and the second drain holes 174 and 175 May be formed to penetrate through the one inclined wall 172a and the other inclined wall 172b, respectively.

The fluid collecting part 103 may be partitioned by the first channel part 172 and the top plate 110 to form a space for collecting the fluid F. [

The fluid storage portions 104 and 105 are divided by the partition plate 170 under the fluid collecting portion 103 to separate the fluid introduced from the fluid collecting portion 103 through the second drain holes 174 and 175 F may be formed.

Referring to FIG. 4, the fluid storage unit 104 may be provided with a sensor unit 400 for sensing the level of the fluid F to be stored in the fluid storage unit 104.

Here, the sensor unit 400 may be a float sensor, a pressure sensor, or the like, and may be electrically connected to the drainage control module 500 through an electric wire.

The mounting position of the sensor unit 400 may be based on the inner surface of the finishing plate 109. If the sensor unit 400 can sense or measure the level of the fluid F, It may not be limited to the above-mentioned installation position because it may be any place on the surface.

In addition, the drainage control module 500 can be applied in a module form to the lighting control system 50 installed for identifying the helideck or taking off and landing at night.

In addition, the present embodiment can measure the level or the fluid storage amount of the fluid F by using the sensor unit 400, and control the operation of the valve unit 350 in accordance with the measured value.

To this end, the discharge pipe 300 may be provided with a valve unit 350 for opening and closing the discharge pipe 300 in accordance with the presence or absence of detection of the fluid F of the sensor unit 400.

The discharge pipe 300 is generally referred to as an elbow or a pipe and is connected to the finishing plate 109 through one end of the discharge pipe 300. The other end of the discharge pipe 300 is connected to the fluid F, (Not shown).

Here, the fluid recovery facility may include a manifold, an elbow, an extension pipe, and various tubular members (e.g., drain pipes, extension pipes, etc.) connected to the other end of each discharge pipe 300, Such as a hanger or support member, a fluid storage tank, a filter device, or the like, for fixing the hull structure to a pillar structure or a hull.

The valve unit 350 may be formed of an electronic valve or the like electrically connected to the drain control module 500 through another electric wire.

Meanwhile, when the valve unit 350 is opened according to sensing or manual control of the sensor unit 400 by the sensor unit 400, the fluid pipe F is connected to the fluid storage unit F And a fluid transportation device 600 that sucks the fluid from the discharge pipe 300 and discharges the fluid to the outside.

Here, the fluid transportation device 600 may be a pump, a fluid suction device, etc., and may be electrically connected to the drainage control module 500 and controlled by the drainage control module 500, It may not be limited thereto.

Referring to Figs. 3 and 4, the operating relationship of the present embodiment will be described.

Fuel such as fuel or rainwater flowing out from a helicopter or the like can flow into the fluid collecting part 103 inside the flank 100 through the first drain hole 111.

The fluid F can be temporarily stored after being introduced into the fluid reservoirs 104 and 105 of the flank 100 through the second drain holes 174 and 175. [

When the process of flowing and storing the fluid F into the fluid reservoirs 104 and 105 is repeated, the level of the fluid F can be high enough to be sensed by the sensor unit 400. [

When the sensor unit 400 is described as a float sensor, the subject of the float sensor, which is the sensor unit 400, is moved upward by the fluid F at a predetermined level of the fluid F, A sensing signal may be generated.

The sensing signal of the sensor unit 400 is inputted to the drainage control module 500 through the electric wire.

The drainage control module 500 determines that the fluid F in the fluid reservoir 104 inside the flank 400 should be discharged to the outside in accordance with the input sensing signal, (Eg valve operating power).

The valve portion 350 opens the valve conduit by the open signal, and as a result, the fluid F can flow into the discharge pipe 300.

Accordingly, the fluid F in the fluid storage part 104 can flow through the discharge pipe 300 to the collection facility of the fluid F provided in the hull.

Meanwhile, when an accident such as fuel overexposure occurs during the helicopter refueling, the operator can manually control the drainage control module 500, and after opening the valve part 350 during the control process, (600).

In this case, the fluid transport apparatus 600 can suck the fluid F from the fluid reservoir 104, such as a suction operation mode, and force it to flow toward the recovery facility of the fluid F as well.

On the other hand, the flank 100 penetrates the lower plate 140 so that the flank 100 can be screwed on the basis of a place where the pancake substructure 200 is not in contact with or interfered with the second support 210 of the pancake substructure 200 And a detachable bottom plug 148 is further provided on the plug hole 149 for screwing into the plug hole 149 or for removing or cleaning the inside of the fluid storage part 104. [ .

When the bottom plug 148 is removed from the plug hole 149, the operator inserts the brushed wire or the tube of the liquid type cleaning device into the bottom plug 148 side so that the inside of the fluid storage part 104 And the problem of clogging due to foreign matter accumulation in the fluid reservoir 104 can be solved.

As described above, the helideck having the integrated drainage duct according to the first embodiment of the present invention is a structure in which the helicopter's pancake 100 itself is a structure for performing the takeoff and landing of the helicopter, and at the same time, A discharge unit 300, a valve unit 350, a sensor unit 400, a drainage control module 500, a drainage control unit 500, a drainage control unit 500, Or the fluid transport device 600 so that when any fluid is generated in the upper part of the pancake flank, the fluid F is discharged from the inside of the flank 100 by its own weight The fluid is separated into two fluid reservoirs 104 and 105 divided into two fluid reservoirs 103 and 103. The fluid is then separated and stored in a fluid reservoir 104 or 105 divided by two fluid reservoirs 103 and 104, When the fluid F is detected by the user or manually by the user, When it is necessary to pull out, being that the valve 350 open, the fluid (F) can have a characteristic that can be collected via the discharge pipe 300.

Second Example

The helideck having the integrated drainage duct of the present invention described in this embodiment is the same as the first embodiment except that the wire passage portion is further formed integrally with the flanks. Therefore, the same or corresponding components in Figs. 1 to 5 will be given the same or similar reference numerals, and a description thereof will be omitted here.

In the drawings, FIG. 5 is a cross-sectional view of a flank of a helideck having an integral drainage duct according to a second embodiment of the present invention.

5, the flank 100 'may be formed by further altering the cross-section design of the extrusion process, changing the cross-section of the dumbbell-type shape of the flank 100' .

The wire passing portion 180 is spaced apart from the bottom surface of the top plate 110 and is divided by the horizontal plate 181 connecting between the diaphragm 160 and the outer plate 130, It is possible to refer to a space that can be used.

For example, the sensor unit 400 to be installed in the fluid reservoir 105 of the flank 100 'needs to be electrically connected to the drainage control module 500 (see FIG. 4) .

At this time, the sensor unit 400 may be installed in the finishing plate 160 in the case of the first embodiment, but may also be installed in the diaphragm 160 near the end of the flank 100 'in the case of the second embodiment. To do this, the worker inserts a tool (e.g., a hand drill) through the opening in the fluid reservoir 105 at the outermost end of the flank 100 ', prior to welding the finishing plate 109 to the flanks 100' And then the hole for installing the sensor unit 400 and the hole for passing the wire 169 of the sensor unit 400 can be machined into the diaphragm 160 by using a tool.

Next, the wire 401 of the sensor unit 400 is inserted into the wire passing hole 169, and the sensor unit 400 itself can be fixed or mounted on the diaphragm 160 using the mounting hole. Further, the wire passing hole 169 can be watertightened by a watertight sealant or a sealant or the like.

The wire 401 of the sensor unit 400 may be electrically connected to the extension wire 410 of the wire passing unit 180. The extension wire 410 is electrically connected to the drainage control module 500 so that the detection signal of the sensor unit 400 is transmitted to the drainage control module 500 through the wire 401 and the extension wire 410 As shown in FIG.

 Accordingly, the flank 100 'can accommodate the sensor unit 400 or other electric wires or communication lines or electric power supply cables, etc. in the electric wire passing portion 180 of the flank 100', thereby neatly arranging it.

Third Example

The helideck having the integrated drainage duct of the present invention described in this embodiment can be the same as the first or second embodiment except that the inclined surface is formed around the first drainage hole of the upper plate portion of the flange. Therefore, the same or corresponding elements in Figs. 1 to 6 will be given the same or similar reference numerals, and a description thereof will be omitted here.

In the drawings, Fig. 6 is a sectional view of a flank of a helideck having an integral drainage duct according to a third embodiment of the present invention.

6, the flank 100 "has a sloped surface 119 which is formed around the upper surface of the upper plate 110 so as to form an inclination angle r on the upper plate 110 of the flank 100 & May be formed on the upper surface.

In this case, the fluid flowing toward the flanks 100 "can flow quickly along the inclined surface 119 and can flow into the first drain hole 111, thereby improving drainage efficiency.

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.

10: Pancakes 100, 100a, 100b, 100 ', 100 ": Flank
103: Fluid collecting part 104, 105: Fluid storage part
108, 109: Finishing plate 110: Top plate
111: first drain hole 120, 130: outer plate
140: lower plate 150, 160: diaphragm
170: partition plate 174, 175: second drainage hole
180: wire passing part 200: pancake substructure
300: discharge pipe 350:
400: sensor unit 500: drainage control module
600: fluid transport device

Claims (13)

In a helideck having a one-piece drainage passage in which a helicopter takes off and land and includes pancakes,
Wherein the pancake comprises:
At least one flank containing at least one first drain hole for fluid entry, a fluid collection section communicating with the outside through the first drain hole, and a fluid storage section communicating with the fluid collection section through at least one second drain hole, ;
A finishing plate coupled to an end of the flank to store fluid in the fluid storage; And
And a discharge duct piped to penetrate the finishing plate. The method according to claim 1,
The flank comprising: a top plate having the first drain hole spaced apart along the longitudinal direction of the flank;
A pair of outer plates extending obliquely at both sides of the bottom surface of the top plate;
A lower plate connected to a lower end of the pair of outer plates and spaced from and parallel to the upper plate and having a width shorter than a width of the upper plate;
A pair of diaphragms spaced from each other at an inner position of the pair of outer plates and connected to each other while reinforcing the upper plate and the lower plate; And
And a partition plate having a vertical part positioned in the middle of the pair of diaphragms, a first channel part having an inverted triangle located at the upper end of the vertical part, and a second channel part having a triangular shape located at the lower end of the vertical part Helideck. 3. The method of claim 2,
Wherein the first channel portion includes one side sloped wall and the other side sloped wall having a V-shaped cross-sectional shape extending along the longitudinal direction of the flank, and the second drain hole is formed to penetrate the one side sloped wall and the other side sloped wall Wherein the helicopter has an integrated drainage channel. 3. The method of claim 2,
Wherein the fluid collecting part is partitioned by the first channel part and the upper plate to form a space for collecting the fluid. 5. The method of claim 4,
Wherein the fluid reservoir is divided by the partition plate below the fluid collecting unit to form a space capable of storing the fluid. The method according to claim 1,
Wherein the fluid storage portion is provided with a sensor for sensing a level of a fluid to be stored in the fluid storage portion. The method according to claim 6,
Wherein the discharge pipe is provided with an integrated drainage passage in which a valve portion for opening and closing the discharge pipe is provided corresponding to the presence or absence of detection of the fluid by the sensor portion. The method according to claim 6,
Wherein the discharge pipe is further provided with a fluid transportation device for sucking the fluid from the fluid storage portion and the discharge pipe and discharging the fluid to the outside when the valve portion is opened according to sensing or manual control of the sensor portion Helideck with integral drainage. 3. The method of claim 2,
Wherein the flank further includes a wire drain portion which is spaced apart from the bottom surface of the top plate and is partitioned by a horizontal plate connecting between the partition plate and the outer plate. 3. The method of claim 2,
Wherein the flank has an inclined surface formed on the upper plate at a periphery of the first drain hole. 3. The method of claim 2,
The flange includes a plug hole formed in the lower plate so as to be capable of screwing; And
And a bottom plug which is detachably screwed to the plug hole. The method according to claim 1,
Wherein the heli deck comprises: a substructure coupled with the pancake; And
And a pillar structure for coupling the lower structure to the hull. 13. The method of claim 12,
Wherein the substructure has an integral drain passage coupled with the flank.

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