KR20150002863U - A hatch cover combination structure of offshore - Google Patents

A hatch cover combination structure of offshore Download PDF

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Publication number
KR20150002863U
KR20150002863U KR2020140000296U KR20140000296U KR20150002863U KR 20150002863 U KR20150002863 U KR 20150002863U KR 2020140000296 U KR2020140000296 U KR 2020140000296U KR 20140000296 U KR20140000296 U KR 20140000296U KR 20150002863 U KR20150002863 U KR 20150002863U
Authority
KR
South Korea
Prior art keywords
cover
hatch
outer cover
forming
opening
Prior art date
Application number
KR2020140000296U
Other languages
Korean (ko)
Inventor
선진국
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR2020140000296U priority Critical patent/KR20150002863U/en
Publication of KR20150002863U publication Critical patent/KR20150002863U/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers
    • B63B19/16—Hatch covers with detachable boards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/24—Hatch fastenings, e.g. cleats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/24—Hatch fastenings, e.g. cleats
    • B63B2019/245—Loose or removable fastening members specially adapted for fastening hatch covers to coamings, sills, or the like

Abstract

The present invention relates to a hatch cover coupling structure of an offshore structure, and more particularly, to a hatch cover structure for an offshore structure having a hatch cover composed of an inner cover and an outer cover, To a hatch cover coupling structure of a structure.
For this purpose, a plurality of hatches are provided for forming an opening through the upper deck of the marine structure hull in the upward and downward directions, forming a supporter at a stepped down position below the opening and defining an inner space of the hull, An outer cover which is seated on a supporter of the outer cover and is formed by forming an inner hole which is bolted to the hull structure forming the opening and penetrates in an upward and downward direction, And an inner cover formed by the inner cover.

Description

[0001] The present invention relates to a hatch cover structure for an offshore structure,

The present invention relates to a hatch cover coupling structure of an offshore structure, and more particularly, to a hatch cover coupling structure of an offshore structure that improves the efficiency of opening and closing the hatch by changing the hatch opening / closing operation depending on the size of equipment for entering and exiting the hatch.

As the industry develops, the use of earth resources such as petroleum is gradually increasing, and the stable production and supply of crude oil is emerging as an important issue.

Accordingly, marine structures such as drilling rigs with drilling facilities suitable for the development of oilfields have been developed.

These types of offshore structures include Fixed Platform, Tension Leg Platform, Floating Production System and Spar Platform, among which TLP (Tension Leg Platform) An offshore structure is an offshore structure used for a large water depth ocean of 200 meters or more as disclosed in Patent Document 1. The offshore structure is composed of a plurality of floats providing buoyancy and facilities installed on the floors, It is fixed to the fixed structure installed on the ocean floor through the tension member called Tendone.

Meanwhile, the various types of offshore structures are provided with hatches for the entrance of people, the loading and unloading of goods or equipment, and the hatching of such offshore structures can have various sizes depending on the size of the entrance and exit objects.

In other words, large hatches can be formed to allow access to large equipment and large parts for installation and maintenance. For example, large hatches of 2 to 3 m in width and 4 to 6 m in height are formed It can be.

FIG. 1 is a plan view of a TLP (Tension Leg Platform) of an offshore structure. A hatch 10 is formed on a deck of a TLP hull by partitioning a plurality of areas.

That is, as described above, various equipment is inserted and removed through the hatch 10, and the hatch cover 20 is installed in the hatch 10 so that no dirt or dirt can be injected into the hull.

The hatch cover 20 is installed for each hatch 10 partitioned by each area as shown in Fig. 1, and is fixed through bolting.

That is, a plurality of bolting holes are formed in the peripheral structure of the offshore structure deck 10, and fastening holes are formed around the hatch cover 20 corresponding to the bolting holes, and are fixed to each other through bolting .

With this configuration, in order to install the equipment through the hatch 10 and install the equipment in the hull, or to carry the equipment out of the hull for equipment maintenance work, a plurality of fastening bolts The hatch cover 20 is released from the hatch 10 by unlocking the hatch cover 30, and then a series of operation procedures are performed.

However, the coupling structure of the hatch cover 20 having the above-described configuration has the following problems.

Since the size of the hatch cover 20 is uniform, a series of operations for entering and extinguishing small-sized equipment is inefficient.

That is, in the case of the large hatch, as described above, the size of the hatch cover 20 is 3 m × 4 m. Since the size of the hatch cover 20 should also be a size corresponding to the size, .

In this case, although a series of operations for separating and connecting the hatch cover 20 to / from the large-sized equipment is inevitable, a series of operations for separating and connecting the entire hatch cover 20 to / from a person or a small- will be.

Korean Patent Publication No. 10-2012-0074094 Korea Patent No. 10-1261864

The object of the present invention is to provide a hatch cover of an offshore structure that can be opened and closed according to the size of a hatch cover according to the size of a person or equipment entering or leaving the hatch. To provide a coupling structure.

In order to achieve the above-mentioned object, the present invention proposes a structure for forming an opening through the upper deck of an offshore structure hull in the up and down directions, forming a supporter at a stepped down position below the opening, An outer cover which is seated on the supporter of the hatch and forms an inner hole which is bolted to the hull structure forming the opening and penetrates in an upward and downward direction, And an inner cover bolted to the outer cover to provide a hatch cover engaging structure of an offshore structure.

At this time, the inner cover is provided with a plurality of locking portions, and the locking portion is preferably composed of a groove formed in the inner cover, a fixing pin fixed across the groove, and a shielding member for shielding the groove.

In addition, the upper edge of the outer cover may be bolted after being seated on the hull structure forming the opening.

Preferably, the upper edge of the inner cover is mounted on the outer cover forming the inner hole and then bolted to the outer cover.

The hatch cover coupling structure of the offshore structure according to the present invention has the following effects.

First, by configuring the hatch cover with the outer cover and the inner cover, the outer cover and the inner cover can be selectively opened and closed according to the size of the person entering or leaving the hull or equipment.

In other words, when small-sized equipment enters and exits, only the inner cover having a small size can be opened and closed without opening and closing the entire hatch cover, thereby reducing the number of work operations for opening and closing the hatch cover. will be.

As a result, convenience and efficiency in opening and closing the hatch cover can be improved.

Second, the efficiency of the surrounding space for disposing the separated hatch cover can be increased during the operation of opening and closing the hatch cover.

That is, when the work for entering and exiting small equipment is carried out, the inner cover having a relatively small size is disposed around the periphery, so that interference with peripheral equipment can be reduced and the safety accident of the worker can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing only a main part of a hatch cover coupling structure of an offshore structure according to the prior art;
FIG. 2 is a plan view showing only a main part of a hatch cover coupling structure of a marine structure according to a preferred embodiment of the present invention;
3 is an exploded perspective view showing a hatch cover engaging structure of an offshore structure according to a preferred embodiment of the present invention.
4 is a side sectional view showing a hatch cover joint structure of an offshore structure according to a preferred embodiment of the present invention;

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to best describe its own design in the best way It should be construed as meaning and concept consistent with the technical idea of the invention.

Hereinafter, a hatch cover coupling structure of an offshore structure (hereinafter referred to as a " hatch cover coupling structure ") according to a preferred embodiment of the present invention will be described with reference to FIGS. 2 to 4 attached hereto.

The hatch cover coupling structure has a technical feature that improves the efficiency of the hatch opening / closing work by constituting the hatch cover which opens and closes the hatch formed in the offshore structure in a different size.

Accordingly, it is possible to increase work productivity by reducing the number of opening / closing operations by changing the opening / closing operation of the hatch cover according to the size of the equipment for entering and exiting the hatch.

The hatch cover coupling structure for this purpose comprises a hatch 100 formed on a hull of an offshore structure, an outer cover 200, an inner cover 300 and a fastening bolt 400.

The hatch 100 is an opening formed through the inside and outside of an offshore structure, and is a passage through which a person enters or exits through the hatch 100.

That is, when the equipment is installed inside the offshore structure, or when the equipment installed on the inside of the offshore structure is taken out of the offshore structure in order to maintain the equipment, the equipment is taken in and out through the hatch 100.

The plurality of hatches 100 are formed on a deck of an offshore structure and are divided into a plurality of structures through a structure 110 such as an H-beam.

The hatch 100 is provided with a supporter 120 which forms a step at a stepped portion from the deck to the lower portion.

The supporter 120 supports the outer cover 200 described later and is fixed to the structure 110 forming the hatch 100 through welding.

That is, the outer cover 200 is coupled to the structure 110 forming the hatch 100, so that the supporter 120 supports the load of the outer cover 200.

A plurality of bolt holes 111 are formed in the structure 110 forming the hatch 100 along the periphery of the hatch 100.

Next, the outer cover 200 serves to open and close the hatch 100 formed in the offshore structure, and has a size corresponding to the size of the hatch 100.

The outer cover 200 is detachably coupled to the structure 110 forming the hatch 100 and is bolted to the bolt hole 111 of the structure 110 through the fastening bolt 400.

To this end, a plurality of fastening holes 210 corresponding to the bolt holes 110 are formed at the edges of the outer cover 200.

The fastening hole 210 of the outer cover 200 and the bolt hole 111 of the structure 110 must correspond to each other in order for the outer cover 200 to be coupled to the structure 110, The edge of the structure 110 may be seated.

That is, the edge of the outer cover 200 forms a seat piece 211 extending outward, and a fastening hole 210 is formed in the seat piece 211.

The outer cover 200 is seated on the supporter 120 formed in the hatch 100 and the leg 220 is formed on the bottom of the outer cover 200 to be supported by the supporter 120 .

Meanwhile, the outer cover 200 is formed with an inner hole 230 passing through the upper and lower directions.

The inner hole 230 is a portion where the inner cover 300 described later is installed, and is a portion that is opened when the hatch 100 of the relatively small size equipment enters and exits.

At this time, although the size of the inner hole 230 is not limited, it is preferable that the size of the inner hole 230 is different from the overall size of the hatch 100.

If there is not a large difference between the size of the inner hole 230 and the size of the hatch 100, the technical meaning of the two hatch covers 200 and 300 may be reduced.

Therefore, it is preferable that the size of the inner hole 230 is approximately half the size of the hatch 100. [

The inner hole 230 is preferably formed in the middle of the eutorter cover 200.

At this time, in the outer cover 200 forming the inner hole 230, a plurality of bolt holes 231 are formed along the periphery of the inner hole 230.

The inner cover 300 serves to open and close the inner hole 230 formed in the outer cover 200 and is bolted to the bolt hole 231 formed around the inner hole 230.

The inner cover 300 corresponds to the size of the inner hole 230 and is configured to open and close the inner hole 230 when the hatch 100 of a relatively small equipment enters and exits.

The seating piece 310 is formed with a bolt hole 231 formed around the inner hole 230. The bolt hole 231 is formed around the inner hole 230, The fastening hole 311 is formed.

That is, the inner cover 300 is also bolted to the outer cover 200 while being seated on the outer cover 200.

Meanwhile, the inner cover 300 is provided with a latching part 320.

The latching part 320 is provided in the inner cover 300 as a plurality of latching structures for lifting the hatch covers 200 and 300 when the hatch 100 or the inner hole 230 is opened or closed.

The locking part 320 is preferably provided at a balanced position on the inner cover 300 and comprises a groove 321, a fixing pin 322 and a shielding member 323.

The groove (321) is recessed downwardly of the inner cover (300), and is configured to smoothly arrange the hooks of the crane.

The fixing pin 322 is a hook for hooking the crane and is fixed to the groove 321.

The fixing pin 322 is fixed to both ends of the groove 321.

The shielding member 323 serves to shield the groove 321 so that no foreign matter or foreign matter may enter into the groove 321 during normal operation.

At this time, it is preferable that the shielding member 323 is configured to be bolted to the groove 321.

Hereinafter, the engagement and operation of the hatch cover constructed as described above will be described.

A hatch cover composed of an outer cover 200 and an inner cover 300 is provided.

First, the outer cover 200 is coupled to the hatch 100.

At this time, the outer cover 200 is inserted into the hatch 100, and the leg 220 of the outer cover 200 is seated in the supporter 120 fixed in the hatch 100.

At this time, the seat piece 211 of the outer cover 200 is seated on the structure 110 forming the hatch 100, and the bolt hole 111 and the fastening hole 210 correspond to each other.

Then, the outer cover 200 is joined to the structure 110 by bolting the outer cover 200 using the fastening bolt 400, so that the coupling of the outer cover 200 is completed.

Next, the inner cover 300 is engaged with the opened inner hole 230.

At this time, the inner cover 300 is inserted into the inner hole 230, and the seating piece 310 of the inner cover 300 is seated on the outer cover 200 around the inner hole 230.

At this time, the bolt hole 231 and the fastening hole 311 correspond to each other.

Thereafter, the bolt hole 231 and the fastening hole 311 are coupled by using the fastening bolt 400, thereby completing the assembly of the hatch cover.

In this state, when the hatch 100 is to be opened, the size of the equipment entering and exiting through the hatch 100 is determined.

If the size of the equipment is small and it is possible to enter and exit through the inner hole 230, only the inner cover 300 is released by loosening the fastening bolt 400.

That is, by separating only the inner cover 300 without separating the entire outer cover 200, the number of fastening bolts 400 to be unlocked is reduced, and the operation speed can be increased.

In addition, since the size of the separated inner cover 300 is smaller than that of the outer cover 200, the efficiency with respect to the arrangement space of the peripheral structure can be increased and the safety accident of the operator can be reduced.

In order to separate the inner cover 300 from the outer cover 200 after the fastening bolt 400 is loosened, the shielding member 323 of the latching part 320 is separated from the groove 321.

Then, the hook of the crane is engaged with the fixing pin 322 of the engaging part 320, and then the inner cover 300 is lifted to complete the opening of the inner hole 230.

Thereafter, the equipment access operation is performed through the inner hole 230 through a series of operation procedures.

When the entire outer cover 200 is detached, the outer cover 200 is lifted by hooking the fixing pin 322 of the stopper 320 with the inner cover 300 without removing the inner cover 300, So that the entire hatch 100 can be opened.

As described above, the hatch cover coupling structure of the offshore structure according to the present invention has a technical feature that the hatch cover is composed of the inner cover and the outer cover.

Accordingly, since only the inner cover can be opened and closed according to the size of the equipment for entering and exiting the hatch, it is possible to prevent the inconvenience of uniformly opening and closing the outer cover to open the hatch, do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

100: Hatch 110: Structure
111,231: Bolt ball 120: Supporter
200: outer cover 210, 311: fastening hole
211, 310: seat fitting 220: leg
230: Inner ball 300: Inner cover
320: fastening portion 321: groove
322: fixing pin 323: shielding member
400: fastening bolt

Claims (4)

A plurality of hatches forming openings penetrating the upper deck of the marine structure hull in the upward and downward directions, forming a supporter at a stepped down position below the opening and defining an inner space of the hull;
An outer cover which is seated on the supporter of the hatch and forms an inner hole which is bolted to the hull structure forming the opening and penetrates in an upward and downward direction;
And an inner cover disposed on the inner hole of the outer cover and bolted to the outer cover. The method according to claim 1,
In the inner cover,
A plurality of engagement portions are formed,
A hatch cover formed on the inner cover, a fixing pin fixed across the groove, and a shielding member for shielding the groove. 3. The method according to claim 1 or 2,
Wherein the upper edge of the outer cover is seated on the hull structure forming the opening and then bolted to the hull structure. 3. The method according to claim 1 or 2,
Wherein the upper edge of the inner cover is seated on the outer cover forming the inner hole and then bolted to the outer cover.





KR2020140000296U 2014-01-14 2014-01-14 A hatch cover combination structure of offshore KR20150002863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020140000296U KR20150002863U (en) 2014-01-14 2014-01-14 A hatch cover combination structure of offshore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020140000296U KR20150002863U (en) 2014-01-14 2014-01-14 A hatch cover combination structure of offshore

Publications (1)

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KR20150002863U true KR20150002863U (en) 2015-07-22

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KR2020140000296U KR20150002863U (en) 2014-01-14 2014-01-14 A hatch cover combination structure of offshore

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170000646U (en) * 2015-08-11 2017-02-21 대우조선해양 주식회사 Hatch cover for preventing an accident

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170000646U (en) * 2015-08-11 2017-02-21 대우조선해양 주식회사 Hatch cover for preventing an accident

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