KR101714504B1

KR101714504B1 - Drainage using Column of Offshore

Info

Publication number: KR101714504B1
Application number: KR1020150066745A
Authority: KR
Inventors: 조형기
Original assignee: 대우조선해양 주식회사
Priority date: 2015-05-13
Filing date: 2015-05-13
Publication date: 2017-03-09
Also published as: KR20160133777A

Abstract

The present invention relates to a drainage apparatus using a column of an offshore structure, comprising: a deck for forming each layer; and a plurality of columns spaced apart by a predetermined distance so as to stably support the deck, A drainage pipe connected to allow the wastewater collected in the deck to flow into the column, and a diaphragm installed on the inner surface of the column so that a predetermined amount of wastewater is stored in the column, so that a drainage pipe for draining the waste water from the deck is simply installed Of course, unlike the prior art, it is not necessary to install a complicated sewage pipe, it is possible to prevent an overflow of the sewage pipe, and it is necessary to install a bilge well or bilge hats for storing sewage in the space of the column A storage tank for storing wastewater is not installed separately, so that the offshore structure 10, The effect of reducing the own weight is obtained.

Description

{Drainage using Column of Offshore}

The present invention relates to a drainage device using a column of an offshore structure, more particularly, to a drainage device using a column installed between a deck and a deck of an offshore structure, To a drainage device using a column of a structure.

Generally, an offshore structure is composed of a plurality of decks such as a lower deck, an intermediate deck, and an upper deck, and various equipment necessary for drilling and refining such as crude oil or gas are arranged between these decks.

Such an offshore structure can be provided with vertically stacked decks that divide a number of layers, and these decks are supported by large diameter columns. That is, the offshore structure is supported by a plurality of columns installed between the deck and the deck, and a bracing, which is a reinforcing material, is installed between the column and the deck.

The decks constituting each layer of the offshore structure are arranged in an open state, and each deck is provided with a drain to be used in various facilities and to discharge the discharged sewage or rainwater (excellent).

The drainage system of the offshore structure is provided with a draining system such that sewage or rainwater is drained from each of the decks from the upper deck to the lower deck. Such a drainage system consists of a pipe forming a channel.

The wastewater from each deck is collected in a bilge hat or bilge well located at a lower position than the bottom deck. The bilge hat corresponds to the lid portion of the bilge well where the sewage is poured, and it filters the waste that may pass water and clog the pipeline. In addition, the bilge hat is equipped with a mesh or grating to prevent a passer from coming out.

Also, bilge well is a tank that is installed at regular intervals on the deck floor to gather various kinds of dirt from equipment or deck.

The wastewater collected in the bilge well is purified by using a pump to discharge the wastewater to the sea. The pump sends the wastewater to the purification unit and then purifies the purified water to the sea.

The drainage system of the offshore structure is connected with a pipe between each deck and the deck, and a plurality of piping lines for collecting sewage are installed in a complicated manner, and a pump and a piping line for discharging stored sewage are installed in a complicated manner there was.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view schematically showing a drainage device installed in a conventional offshore structure. FIG.

1, a column 2 for supporting a load between a deck 1 and a deck 1 is installed in an offshore structure, and each deck 1 is provided with a wastewater or rainwater, And a pipe 3 for transferring it to the well is installed.

The column 2 is a structural element for supporting the structural load of an offshore structure and is formed to have a large thickness and a large diameter so as to have the strength for supporting loads such as equipment or equipment installed on the deck 1 and the deck 1.

In addition, each deck 1 is provided with a drainage device for discharging wastewater and the like. In this drainage device, a plurality of pipes 3 are connected and installed so as to move sewage to a bilge well or the like.

The piping 3 is installed in the deck 1 to discharge the waste water to the deck 1, as well as to be connected to other equipment or facilities to discharge the used waste water.

Since the column 2 occupies a relatively large space in the offshore structure, equipment such as an offshore structure or equipment such as facilities is installed to avoid the space occupied by the column 2.

As a result, the column 2 acts as an obstacle to the installation of the equipment.

Also, since the piping 3 for transferring the wastewater is connected to the decks 1 in a complex entangled state, the installation of the piping 3 is complicated and the installation cost is excessively increased.

In addition, the size of the piping 3 must be appropriately calculated by calculating the drainage amount of each deck 1, and there is a problem that overflow occurs when the drainage amount is calculated incorrectly.

Also, the column 2 has a problem that an important structure supporting the deck 1 or an internal empty space of the column 2 can not be used.

For example, a 'drain pipe' is disclosed in Patent Document 1 below.

The water pipe according to Patent Document 1 is an offshore structure including a support member, the support member includes a wall at least partly defining the support member, and the inner surface of the wall at least partially supports the inner volume of the support member The outer surface of the wall being oriented to face the ambient environment of the support member and the offshore structure being adapted to guide the fluid from the offshore structure to a body that at least partially surrounds the offshore structure Wherein at least a part of the outer surface of the wall is partly defined by the drain pipe.

The following Patent Document 2 discloses a "Se chest drain system".

The seed-chest drain system according to the following Patent Document 2 is a sea-chest drain system of an offshore structure that drains the seed water in the seed chest during maintenance of the seed chest. In order to drain the seed water inside the seed chest, A first seed chest drain line installed; And a second seed chest drain line connected to the bilge system for draining the seed water in the seed chest and installed on the other side of the pontoon so as to be connected to the first seed chest drain line.

Korean Patent Publication No. 10-2011-0086115 (published on July 27, 2011) Korea Patent Unexamined Publication No. (published on January 1, 2013, Announcement)

However, in the drainage system of the offshore structure according to the related art, piping lines for drainage are complicatedly installed on each deck, sewage or the like overflows depending on the amount of drainage, a column having a large diameter can not be used, There is a problem that the space utilization by the user is low.

It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a column for an offshore structure which can be used as a drain line by using a column supporting a deck of an offshore structure, And a drainage device using the same.

Another object of the present invention is to provide a drainage apparatus using a column of an offshore structure capable of draining wastewater and the like without separately installing a piping line for draining wastewater or the like to each deck.

It is still another object of the present invention to provide a drainage apparatus using a column of an offshore structure that can reduce the self weight of an offshore structure and enhance the stability of an offshore structure by dividing the column by each section to store wastewater.

In order to achieve the above object, a drainage apparatus using a column of an offshore structure according to the present invention comprises a deck for forming each layer, a plurality of columns spaced apart by a predetermined distance so as to stably support the deck, Wherein the column includes a waste water pipe connected to allow the wastewater collected in the deck to flow therein, and a diaphragm installed on the inner surface of the column so that a predetermined amount of wastewater is stored in the column.

And the column includes a plurality of spaces formed by dividing the wastewater by the diaphragm.

And the column includes an open / close valve installed so that the wastewater accommodated in the space part is moved to the lower space part.

The open / close valve includes a first pipe installed at an upper space portion of the column, a valve installed at a tip of the first pipe, and a second pipe connected to a lower end of the valve and connected to a lower space portion of the column .

And a coating layer is formed on the inner surface of the column to prevent corrosion due to stored sewage.

And a bilge pump is connected to the column to discharge waste water stored therein.

As described above, according to the drainage apparatus using the column of the offshore structure according to the present invention, the drainage pipe for draining the waste water on the deck can be easily installed, the drainage pipe is not required to be complicated, It is possible to prevent the overflow of the waste water pipe and to store the wastewater in the space of the column, there is no need to provide a bilge well or bilge hats for storing wastewater, and a storage tank for storing wastewater It is possible to reduce the weight of the offshore structure 10 itself.

1 is a schematic view of a drainage device installed in a conventional marine structure,
2 is a structural view illustrating a drainage apparatus using a column of a marine structure according to a preferred embodiment of the present invention.
3 is a partially enlarged view of the column shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a drainage apparatus using a column of an offshore structure according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a structural view showing a drainage apparatus using a column of an offshore structure according to a preferred embodiment of the present invention, and FIG. 3 is an enlarged view of the column shown in FIG.

The dehydration apparatus using the column of the offshore structure according to the preferred embodiment of the present invention includes a deck 20 forming each layer, a plurality of columns (not shown) spaced apart by a predetermined distance so as to stably support the deck 20 The column 30 includes a waste water pipe 25 connected to allow the wastewater collected in the deck 20 to be introduced into the column 30, And a diaphragm 32 provided on the inner surface of the column 30. [

The offshore structures refer to offshore oil storage facilities, marine airports or offshore plants from floating or fixed offshore structures for the development and production of offshore oil and gas and port structures for offshore oil tankers or LNG carriers.

These offshore structures are largely divided into floating structures and fixed structures. The floating structures include drill ship, jack-up rig, and semi-submersible.

In addition, jacket-type marine platforms and concrete gravity structures are used as stationary structures.

It should be understood that the marine structure used in the present invention includes both floating structures and stationary structures.

The marine structure 10 is provided with a plurality of decks 20 forming a layer. The deck 20 may be equipped with equipment or equipment for drilling and drilling crude oil.

The deck 20 may be formed with all sides open, and a drainage pipe 25 may be connected to the deck 20 to prevent rainwater and the like from accumulating. The waste water pipe 25 can be installed so as to drain water used in equipment installed in the deck 20 as well as to drain the debris accumulated in the deck 20 to the outside of the offshore structure 10 have.

2, the waste water discharge pipe 25 is installed not only on the bottom surface of the deck 20, but also connected to equipment or equipment (not shown). Needless to say, the wastewater discharge pipe 25 can be connected to the wastewater used in the wastewater or equipment so as to be separated from each other.

Some of the sewage drain pipes 25 may be installed to drain rainwater or the like accumulated in the deck 20 and other parts may be installed to drain wastewater and the like .

The deck 20 can also be supported by a column 30 of larger diameter. These columns 30 are installed in the upper structure of the offshore structure 10 and can be installed to stably support the deck 20 between the decks 20. Such a column 30 has a large thickness and can have a diameter of about 700 mm or more.

A plurality of the columns 30 may be installed at predetermined intervals between the decks 20 in order to improve structural stability. In addition, a plurality of bracings 31 may be installed on the column 30 to more securely support the deck 20 and increase rigidity.

The column 30 may be hollow with a hollow interior and a diaphragm 32 may be installed inside the column 30 at the same horizontal height as the deck 20.

3, the diaphragm 32 may be provided so as to partition the internal space of the column 30 into a plurality of spaces. In the column 30, a space portion 33 partitioned by the diaphragm 32, May be formed in plural numbers.

The space 33 can be used as a space in which the wastewater flowing from the waste water pipe 25 is stored. A coating layer 34 may be formed on the inner surface of the column 30 to prevent corrosion due to wastewater.

The coating layer 34 is formed to prevent corrosion caused by wastewater containing rainwater or oil, and more preferably, it can be made of a holding primer.

The coating layer 34 may be formed not only on the entire space 33 of the column 30 but also on the diaphragm 32. The coating layer 34 prevents corrosion of the column 30 or corrosion due to salt due to the wastewater stored in the space portion 33

A bilge pump 35 for draining the wastewater stored in the space 33 may be installed in the lower portion of the column 30.

The column 30 may be provided with an opening and closing valve 36 for moving the stored wastewater in the space portion 33 partitioned by the partition plate 32 to another space portion 33.

The open / close valve 36 allows the wastewater stored in the space portion 33 to be moved to the other space portion 33. The open / close valve 36 is operated by a manually operated valve or control by an operator The valve may be closed.

The on-off valve 36 includes a first pipe 37 provided in the upper space 33, a valve 38 provided at the tip of the first pipe 37, And a second pipe 39 connected to the second pipe 33.

The first pipe 37 is connected to the upper space 33 among the plurality of space portions 33. A valve 38 for controlling the movement of the wastewater is provided at the tip of the first pipe 37, Respectively.

The second pipe 39 is connected to the valve 38 so that the wastewater discharged from the upper spatial part 33 is moved to the lower spatial part 33.

Next, a coupling relationship of a drainage system using a column of an offshore structure according to a preferred embodiment of the present invention will be described in detail.

2 and 3, a drainage apparatus using a column of an offshore structure according to an embodiment of the present invention includes a column 30 installed between decks 20 of an offshore structure 10, It can be used as a storage tank.

In the offshore structure 10, a deck 20 for forming each layer is installed at a predetermined height, and the deck 20 is formed in such a manner that all sides are opened. As a result, the deck 20 can be provided with rainwater or sewage used in equipment or equipment.

A plurality of waste water pipes 25 are connected to the deck 20 to prevent rainwater or waste water from accumulating. The waste water pipe 25 is connected to the column 30 supporting the deck 20.

That is, the waste water pipe 25 is connected to the column 30 so as to supply rainwater or equipment used in the deck 20 or wastewater used in the equipment. The waste water discharge pipe 25 is installed on each deck 20, and a plurality of waste water discharge pipes 25 can be branched or joined together.

The column 30 is a structure for securely supporting the deck 20 and is formed of a hollow circular steel pipe and is installed to be spaced apart from the deck 20 and the deck 20 at regular intervals.

A bracing 31 is installed between the deck 20 and the deck 20 and the bracing 31 is installed to stably support the deck 20.

A partition plate 32 is fixed to the column 30 so as to form an internal space 33 and a coating layer 34 is formed on the space 33 and the partition plate 32 so as not to be corroded by wastewater.

The painting layer 34 paints the entire inner surface of the partition 32 and the space portion 33.

A bilge pump (35) is installed below the column (30) to discharge waste water stored in the space (33). The bilge pump 35 allows the wastewater stored in the space 33 to be discharged to the outside of the offshore structure 10 as needed.

The plurality of space portions 33 formed by the diaphragm 32 are provided with an on-off valve 36 capable of moving the wastewater stored in the upper space portion 33 to the lower space portion 33.

The first pipe 37 is connected to the upper space 33 of the on-off valve 36. The first pipe 37 is provided with a valve 37 for controlling the movement of the wastewater. And a second pipe 39 is connected to the lower space portion 33. As shown in Fig.

The debris or wastewater accumulated in the deck 20 flows into the column 30 through the waste water pipe 25 installed in the deck 20. The thus introduced wastewater is stored in the space portion 33 formed on the upper side of the column 30.

The wastewater stored in the space portion 33 is moved from the upper space portion 33 to the lower space portion 33 depending on whether the valve 38 is opened or closed. The wastewater stored in the space portion 33 can be discharged to the outside of the offshore structure 10 by the bilge pump 35. The wastewater discharged to the outside of the offshore structure 10 is discharged through the purification device, Thereby preventing contamination.

Since the coating layer 34 formed on the column 30 is formed to prevent corrosion by the paint, corrosion by the wastewater is prevented.

The present invention stores wastewater or the like in a column 30 having a large diameter, so that it is possible to easily install a wastewater pipe 25 for discharging wastewater separately as in the prior art. Also, since the waste water pipe 25 is connected to the column 30, the sewage water pipe 25 is not required to be complicated.

Further, since the wastewater is stored in the space 33 of the column 30, it is not necessary to provide a bilge well or bilge hats for storing wastewater, and a storage tank for storing wastewater is not installed separately, It is possible to reduce the weight of the body 10 itself.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

10: Offshore structure 20: Deck
25: sewage pipe 30: column
31: Bracing 32: Diaphragm
33: space part 34: paint layer
35: bilge pump 36: opening / closing valve
37: first piping 38: valve
39: Second piping

Claims

A dehydration apparatus using a column of an offshore structure including a plurality of decks forming respective layers and a plurality of columns spaced apart by a predetermined distance so as to stably support the deck,
The column is connected to allow the wastewater collected in the deck to flow in, and the drainage pipe,
And a plurality of diaphragms installed on the inner surface of the column so that a predetermined amount of wastewater is stored in the column,
Wherein the column includes a plurality of spaces formed by dividing the wastewater by the diaphragm,
Wherein the column includes an open / close valve installed to move wastewater accommodated in an upper space portion of the diaphragm to a lower space portion of the diaphragm,
The on-
A first pipe extending from an upper space portion of the diaphragm,
A valve connected to the first pipe,
And a second pipe connecting the valve and the lower column of the diaphragm.

delete

The method according to claim 1,
Wherein a coating layer is formed on the inner surface of the column to prevent corrosion due to stored sewage.

The method according to claim 1,
Wherein a bilge pump is connected to the column to discharge wastewater stored in the column.