KR20160134200A - Indeck Tank for Offshore - Google Patents

Indeck Tank for Offshore Download PDF

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Publication number
KR20160134200A
KR20160134200A KR1020150067858A KR20150067858A KR20160134200A KR 20160134200 A KR20160134200 A KR 20160134200A KR 1020150067858 A KR1020150067858 A KR 1020150067858A KR 20150067858 A KR20150067858 A KR 20150067858A KR 20160134200 A KR20160134200 A KR 20160134200A
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KR
South Korea
Prior art keywords
tank
structural member
fluid
offshore structure
offshore
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KR1020150067858A
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Korean (ko)
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KR101766263B1 (en
Inventor
임흥래
Original Assignee
대우조선해양 주식회사
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Priority to KR1020150067858A priority Critical patent/KR101766263B1/en
Publication of KR20160134200A publication Critical patent/KR20160134200A/en
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Publication of KR101766263B1 publication Critical patent/KR101766263B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The present invention relates to an inline tank for an offshore structure, which comprises a structure disposed at an equal interval in an offshore structure, a side plate installed to have a predetermined space along an outer surface of the structure, a bottom plate installed on a bottom surface of the structure, And a plurality of partitioned spaces formed at upper portions of the inner upper portion of the inner tank to form a plurality of divided spaces, The pressure relieving means may be provided on the structural member of the Indek tank to maintain the same height of the fluid and to prevent the generation of bubbles generated when the fluid collides with the structural member, It is possible to prevent the overpressure generated in the inside of the tank, It can save, and inde inde obtained an effect that it is possible to reduce the height of the tank to reduce the size and cost of materials for the production of large tanks.

Description

{Indeck Tank for Offshore}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal tank for an offshore structure, and more particularly, to an internal tank for an offshore structure capable of enhancing the space utilization inside the internal tank by preventing a vacuum space from being generated inside the internal tank will be.

In general, various types of ships such as bulk carriers, container ships, and passenger ships employ a fuel supply system using heavy oil (HFO) (or MDO) such as Bunker C oil, which is a liquid fuel, as propellant fuel.

In the conventional fuel supply system, when heavy oil or the like used as fuel is burned, environmental pollution due to various harmful substances contained in the exhaust gas is serious.

Since the demand for the prevention of environmental pollution is being strengthened all over the world, regulations on propulsion devices using heavy oil as fuel oil are also strengthened, and costs for meeting such regulations are gradually increasing.

In addition, when the oil price rises due to the exhaustion of fossil fuels or local anxiety, there are various operational problems such as the problem that the fuel cost of the ship using heavy oil as fuel increases sharply.

On the other hand, the offshore structure is divided into a topside and a hullside. On the topside, a generator is installed to obtain power necessary for purifying or treating crude oil mined, and a fuel tank is installed to supply fuel to the generator.

The fuel tank generally has a tubular or box-like structure having a predetermined space, and it is possible to store a certain amount of fuel, fluid or the like therein.

The fuel tank of such an offshore structure may use a fuel tank in the form of a box or box, but an indeck tank having a certain space in an offshore structure may be formed to store a large amount of fuel or fluid.

1 is a schematic view showing a conventional Indek tank.

The indeck (1, indeck) is provided on a deck or the like of the topside, and the plate is fixed with a space of a size to be formed by using the structure of the topside. In this indirect tank 1, a plate having a predetermined thickness is welded between structures (or structural members) such as H-beams installed at regular intervals.

In addition, depending on the size, capacity, etc. of the inner tank, the plate constituting the bottom surface or the upper surface of the inner tank is fixed. The side plates, the top and bottom plates of these Indek tanks are of course fixed to the structure of the offshore structure by welding or the like.

As shown in Fig. 1, the Indek tank 1 includes a side plate 2 constituting the side surface of the Indek tank 1 by a plate provided between the structures, a side plate 2 constituting the bottom surface of the Indek tank 1, A bottom plate 3 and an upper plate 4 constituting the upper surface of the inside tank 1. [

The structural member 5 may be disposed in the inner tank 1 according to the capacity or size of the inner tank 1. The structural member 5 may partition the space inside the inner tank 1 into a plurality of spaces. As shown in FIG.

An inlet pipe 6 for supplying fluid is connected to the inlet tank 1 and an overflow pipe 7 for discharging the fluid filled in the inlet tank 1 is connected to the inlet tank 1 .

Also, a vent which can discharge an inert gas may be provided in the Indeck tank 1.

A structure member 5 is provided at the upper portion of the upper surface of the inner tank 1 to protect the upper surface (or the upper portion) of the inner tank 1 because various equipment is installed on the upper surface of the inner tank 1, Is installed.

If the size of the inner tank 1 is large, the structure of the inner tank 1 is not affected by the size of the inner tank 1. However, if the size of the inner tank 1 is small, A pocket is formed by contacting the structural member 5, and the height of the fluid is varied between the structural members 5.

That is, when the size of the indirect tank 1 is large, it is possible to sufficiently store the required fluid. However, when the size of the indirect tank 1 is small, there is a problem that the necessary fluid can not be sufficiently stored.

In addition, when the size of the indirect tank 1 is small, the fluid introduced into the inlet pipe 6 is filled into the inside of the indirect tank 1 and filled with inert gas or the like. 1) is reduced.

The maximum height of the fluid to be filled in the inner tank 1 is limited to only the height indicated by the arrow. The structure member 5 divides the inside of the inner tank 1 into another space, A vapor pocket is formed due to being filled more than the height of the member, overpressure due to the fluid head may be generated, and the height of the fluid varies depending on the position of the tank, .

For example, Patent Document 1 below discloses a floating structure having a detachable fuel tank.

A floating structure having a detachable fuel tank according to the following Patent Document 1 has a fuel tank for storing fuel and is used floating in the sea, the space being formed inside the hull of the floating structure; The fuel tank detachably mounted in the space; And the cargo can be loaded in the space when the fuel tank is detached from the space.

The following Patent Document 2 discloses an " evaporation gas processing apparatus and method ".

The evaporation gas processing apparatus according to the following Patent Document 2 includes an evaporation gas processing apparatus for processing an evaporation gas generated in a marine structure, the apparatus comprising: a first supply line for supplying evaporation gas generated in the marine structure to a gas turbine for a liquefier; and; A compressor installed in the first supply line for compressing the evaporation gas; And a second supply line for branching from the first supply line on the downstream side of the compressor and supplying the BOG compressed by the BOG compressor to the gas turbine.

The following Patent Document 3 discloses a liquefied gas storage tank having a sloshing suppressing means.

The liquefied gas storage tank having the sloshing suppressing means according to Patent Document 3 described below is a liquefied gas storage tank which is capable of storing liquefied gas, which is a liquid cargo, installed in a floating marine structure which is operated in sea or used in a floating state, A sloshing suppressing means arranged at an upper portion of the storage tank and capable of reducing the flow of the liquid cargo accommodated in the storage tank is provided and the sloshing suppressing means is provided with longitudinal restraining means extending in the longitudinal direction of the storage tank And transverse restraining means extending transversely of the storage tank, wherein the longitudinal restraining means and the lateral restraining means are arranged in a lattice form.

Korean Patent Publication No. 10-2011-0046944 (published on May 6, 2011) Korean Patent Publication No. 10-2011-0087464 (published on August 3, 2011) Korean Utility Model Publication No. 20-2010-0003614 (published on April 5, 2010)

However, according to the conventional art, there is a problem that the maximum height of the fluid is limited to the lower portion of the structural member, and the inside of the Indec tank is partitioned into another space by the structural member, A vapor pocket may be formed, overpressure due to the fluid head may be generated, and the height of the fluid may vary depending on the position of the tank, thereby causing errors in measuring the height of the fluid.

SUMMARY OF THE INVENTION An object of the present invention is to provide an indirect tank for an offshore structure capable of storing a required fluid by communicating the inside of an indirect tank with one space.

Another object of the present invention is to provide an indirect tank for an offshore structure capable of increasing the storage capacity without expanding the Indek tank, the storage capacity of the fluid stored in the Indek tank.

Yet another object of the present invention is to provide an indirect tank for an offshore structure in which steam bubbles are not generated in the internal tank.

It is another object of the present invention to provide an internal tank for an offshore structure capable of maintaining the internal level of the internal tank at the same level.

In order to achieve the above object, the present invention provides an inline tank for an offshore structure, comprising: a structure disposed at a predetermined interval in an offshore structure; a side plate installed along the outer surface of the structure to provide a predetermined space; And a top plate installed on an upper surface of the structure, wherein the structural member is a structural member disposed at an inner upper portion of the inner tank at predetermined intervals to form a plurality of divided spaces, And pressure discharge means formed in the structural member to discharge the pressure of the internal tank.

And the pressure discharge means is a flow passage formed in the structural member.

And the flow path is formed at regular intervals along the vertical direction and the horizontal direction of the structural member.

And the flow path is formed so that an inert gas introduced into the inlet tank flows through the inlet tank so as not to be ignited by the fluid filled in the inlet tank.

As described above, according to the present invention, since the pressure relieving means is formed on the structure member of the indelike tank, the height of the fluid can be kept the same, and the bubbles It is possible to prevent the overpressure generated in the inside of the tank and to store the maximum flow rate to be filled in the inside of the inside tank and to reduce the height of the inside tank It is possible to reduce the material and cost of manufacturing the large tank.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an indirect tank installed in a conventional offshore structure,
2 is a sectional view showing an internal tank for an offshore structure according to a preferred embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view illustrating an internal tank for an offshore structure according to a preferred embodiment of the present invention.

The present invention relates to an indirect tank for an offshore structure, comprising: a structure disposed at a predetermined interval in an offshore structure; a side plate (21) installed along the outer surface of the structure to provide a predetermined space; The present invention relates to an indirect tank for an offshore structure having a bottom plate 22 and a top plate 23 provided on the upper surface of the structure, A structural member 30 forming a partitioned space and a pressure discharge means 40 formed in the structural member 30 to discharge the pressure of the indirect tank 20. [

As shown in FIG. 2, an inline tank for an offshore structure according to an embodiment of the present invention is installed on a top side of an offshore structure to store a required amount of fluid to be stored.

At this time, the inlet tank 20 can be provided in a space (volume) enough to store the amount of the fluid to be stored, and the inlet tank 20 can be manufactured in a size of the capacity to be accommodated without consideration of the free space according to the steam pressure.

In the meantime, the 'structure' in the present invention refers to an H-beam or a column vertically erected on an offshore structure, and the structural member 30 is provided to stably support the top plate 23 inside the Indek tank 20 It is installed.

This structure and the structural member 30 are installed on the top side of the offshore structure and refer to a structure (H-beam, steel column, or the like) in which the plate is installed to form the indec tank 20. The structural member 30 ) Refers to a structure (H-beam, steel column, or the like) located inside the inside of the internal tank 20. [

A fuel tank for storing diesel oil or the like to be used in the generator may be disposed in the offshore structure. The size of the indirect tank 20 used as the fuel tank or the like may be changed according to the required storage capacity and may be appropriately sized according to the storage capacity.

Such an indirect tank 20 can be installed using a structure (not shown) such as an H-beam or a column installed in an offshore structure (not shown), and a space sealed by welding or the like between the structure and the structure The side plate 21 can be fixed.

The side plate 21 may be formed of a plate having a predetermined size between the structure and the structure so as to have an appropriate internal space and the side plate 21 may be fixed to both sides of the structure by welding or the like.

The side plates (21) are installed between the structures so that the side plates (21) can be welded to each other.

A bottom plate 22 may be provided on the bottom surface of the side plate 21 on the bottom surface of the intake tank 20 and a top plate 23 may be provided on the top surface of the side plate 21.

The side plates 21, the bottom plate 22 and the top plate 23 are connected to each other by connecting a plurality of plates to each other to form side plates 21, Can be installed.

An inlet pipe 25 capable of supplying diesel oil or the like may be connected to the inlet tank 20 and an overflow 26 may be connected to prevent overpressure in the inlet tank 20.

A structure member 30 for supporting the top plate 23 may be installed in the inside of the inner tank 20. The structure member 30 extends to the bottom of the top plate 23, (30) are spaced apart from each other by a predetermined distance.

The structural member 30 may be provided with a pressure discharge means 40 for discharging the vapor pressure in the inside of the indirect tank 20.

The pressure discharging means 40 may be formed as a passage so as to communicate the spaces partitioned by the structural member 30. [ That is, the pressure discharge means 40 may be formed of a hole having a constant diameter.

In addition, a plurality of channels, which are the pressure discharging means 40, may be formed at regular intervals along the horizontal and vertical directions of the structural member 30. [

In addition, the pressure discharge means 40 may be connected to a conduit through which the inert gas for preventing the ignition of the fluid filled in the inside of the indike tank 20 flows, and a vent hole through which the inert gas is discharged may be formed.

The inert gas introduced into the inside of the inner tank 20 is allowed to move with respect to each other through the pressure discharge means 40 formed on the structural member 30.

Referring to FIG. 2, a method of operating an indirect tank for an offshore structure according to a preferred embodiment of the present invention will be described in detail.

As shown in FIG. 2, the inlet tank 20 of the present invention can be installed on the top side of an offshore structure, and a tank is formed on the offshore structure itself using a structure installed on the top side.

That is, the inner tank 20 is fixedly installed by welding or the like between the structure and the structure installed perpendicularly to the offshore structure, and the bottom plate 22 ) Is fixedly installed by welding or the like.

The upper surface of the side plate 21 is fixed to the bottom plate 22 in the same manner. In addition, an inlet pipe 25 capable of supplying a fluid to be stored is connected to the inlet tank 20, and an overflow 26 through which fluid can be discharged due to overpressure of the fluid is connected.

A structural member 30 capable of stably supporting the upper plate 23 is provided at a predetermined interval in the upper side of the inlet tank 20 and a fluid introduced into the structural member 30 from the inlet pipe 25 A pressure discharge means 40 for discharging the pressure generated by the pressure discharge means 40 is provided.

The pressure discharge means 40 forms flow paths (holes) of a predetermined size in the structural member 30, and a plurality of flow paths are formed at regular intervals along the horizontal and vertical directions of the structural member 30.

The fluid flows into the inlet tank 20 through the inlet pipe 25 and the fluid is filled inside the inlet tank 20 so that the level of the fluid is increased.

As the water level increases, the fluid rises from the lower end of the structural member 30 toward the upper side, and the fluid to be raised moves to another space through the pressure discharge means 40 formed in the structural member 30 .

Thus, the fluid can move without being restricted by the space partitioned by the structural member 30, so that no vapor pressure is generated, and the fluid can be stored close to the top plate 23 of the Indek tank 20 So that it is possible to sufficiently store the required fluid.

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.

20: Indek tank 21: Side plate
22: bottom plate 23: upper plate
25: inlet piping 26: overflow
30: structural member 40: pressure discharge means

Claims (4)

A side plate installed to have a predetermined space along an outer surface of the structure, a bottom plate installed on a lower surface of the structure, and a top plate installed on an upper surface of the structure, As a large tank,
A structural member disposed at an inner upper portion of the inner tank at regular intervals to form a plurality of divided spaces,
And a pressure discharge means formed in the structural member to discharge the pressure of the inlet tank. The method according to claim 1,
Wherein the pressure discharge means is a flow passage formed in the structural member. 3. The method of claim 2,
Wherein the passage is formed at regular intervals along the vertical direction and the horizontal direction of the structural member. 3. The method of claim 2,
Wherein the flow channel is formed so that an inert gas introduced into the inlet tank flows through the inlet tank to prevent ignition by the fluid filled in the inlet tank.
KR1020150067858A 2015-05-15 2015-05-15 Indeck Tank for Offshore KR101766263B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150067858A KR101766263B1 (en) 2015-05-15 2015-05-15 Indeck Tank for Offshore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150067858A KR101766263B1 (en) 2015-05-15 2015-05-15 Indeck Tank for Offshore

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KR20160134200A true KR20160134200A (en) 2016-11-23
KR101766263B1 KR101766263B1 (en) 2017-08-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100003614U (en) 2008-09-26 2010-04-05 대우조선해양 주식회사 Lng storage tank having an anti-sloshing structure
KR20110046944A (en) 2009-10-29 2011-05-06 대우조선해양 주식회사 Floating structure having an attachable fuel gas tank
KR20110087464A (en) 2010-01-26 2011-08-03 대우조선해양 주식회사 Apparatus and method for treating boil-off gas

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100003614U (en) 2008-09-26 2010-04-05 대우조선해양 주식회사 Lng storage tank having an anti-sloshing structure
KR20110046944A (en) 2009-10-29 2011-05-06 대우조선해양 주식회사 Floating structure having an attachable fuel gas tank
KR20110087464A (en) 2010-01-26 2011-08-03 대우조선해양 주식회사 Apparatus and method for treating boil-off gas

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Publication number Publication date
KR101766263B1 (en) 2017-08-23

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