KR20170082003A - Fluid transferring line for storage tank of liquid gas - Google Patents

Fluid transferring line for storage tank of liquid gas Download PDF

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Publication number
KR20170082003A
KR20170082003A KR1020160001112A KR20160001112A KR20170082003A KR 20170082003 A KR20170082003 A KR 20170082003A KR 1020160001112 A KR1020160001112 A KR 1020160001112A KR 20160001112 A KR20160001112 A KR 20160001112A KR 20170082003 A KR20170082003 A KR 20170082003A
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KR
South Korea
Prior art keywords
line
storage tanks
fluid flow
storage tank
liquefied gas
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Application number
KR1020160001112A
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Korean (ko)
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KR101767555B1 (en
Inventor
장현민
손재욱
신현준
안수경
문영식
Original Assignee
대우조선해양 주식회사
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Priority to KR1020160001112A priority Critical patent/KR101767555B1/en
Publication of KR20170082003A publication Critical patent/KR20170082003A/en
Application granted granted Critical
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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 
    • 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
    • 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
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
    • 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
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

Abstract

A fluid flow line for a liquid cargo storage tank is provided.
According to the present invention, one liquid cargo transport line can simultaneously transport different liquid cargoes so that various liquid cargoes can be transported at the same time in accordance with the demand of a market that changes due to fluctuations in oil prices and the like.

Figure P1020160001112

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a liquid transfer line for a liquefied gas storage tank,

The present invention relates to a fluid flow line for a liquefied gas storage tank, and more particularly to a fluid flow line for a storage tank mounted on a floating suspension for storing liquefied gas.

Natural gas or petroleum gas has a much smaller volume when it is in the liquid state than when it is in a gaseous state. Therefore, when transporting natural gas or oil gas by sea, it is liquefied with liquefied natural gas or liquefied petroleum gas, (Carrier). The storage tank for storing such liquefied gas can be largely divided into a membrane type tank and a stand-alone tank.

On the other hand, various types and phases of fluids flow into or out of the storage tanks during handling of the storage tanks storing liquefied gas and liquefied gas. For example, in the process of loading and unloading the liquefied gas, the liquefied gas may flow into the storage tank or out of the storage tank, and the evaporated gas generated by the evaporation of the liquefied gas may be discharged from the storage tank. Alternatively, the evaporated gas discharged from the storage tank may be re-liquefied and then introduced into the storage tank again. Thus, piping, or lines, are provided around the storage tank to provide a path through which these fluids flow.

On the other hand, conventionally, one kind of liquid cargo carried by one carrier was one. That is, one carrier carries, for example, one liquefied natural gas or liquefied petroleum gas. Therefore, there is no mixing problem between the liquid cargoes which occurs when two or more liquid cargoes are stored in the storage tank.

1 is a view showing a fluid flow line provided around a liquid gas storage tank according to the related art.

As shown in FIG. 1, a fluid flow line through which various fluids flow is installed around a plurality of storage tanks for storing liquefied gas. Referring to FIG. 1, a fluid flow line provided around the storage tank is a liquid line that provides a path through which a liquefied gas flows during loading or unloading, a liquefied gas that can not be unloaded through a liquid line, And a steam line for providing a path through which the evaporation gas generated by the evaporation of the liquefied gas is discharged to the outside of the storage tank.

However, according to the prior art, only one such fluid flow line was installed. Thus, the liquefied gas, the evaporative gas, etc. that flowed into each storage tank or discharged from each storage tank flowed through one fluid flow line.

Recently, ethane and ethylene have been attracting attention as fuel for replacing liquefied natural gas and liquefied petroleum gas, and demand is also increasing. Therefore, the ability to transport heterogeneous liquid gas through a single transport provides an advantage of being able to transport flexible liquid gas to market needs.

However, as shown in FIG. 1, there is a problem in that different kinds of liquefied gas can not be transported in the structure of the fluid flow line according to the related art. That is, according to the related art, there is a problem that the fluid flow lines are composed of one, and the fluids introduced into the respective storage tanks or the fluids discharged from the respective storage tanks are mixed, for example, the liquefied natural gas and the liquefied ethylene can not be simultaneously transported.

Accordingly, it is an object of the present invention to allow a single liquid cargo conveyance line to simultaneously transport different types of liquid cargoes, thereby enabling various liquid cargoes to be simultaneously transported to meet the changing market demand due to fluctuations in oil prices and the like.

According to an aspect of the present invention, there is provided a fluid flow line for providing a flow path of fluid flowing into or out of a plurality of storage tanks for storing liquefied gas, The fluid that flows into or out of the storage tanks of a part of the plurality of storage tanks flows into the remaining storage tanks other than the storage tanks of the plurality of storage tanks and flows out of the remaining storage tanks There is provided a fluid flow line for a liquefied gas storage tank configured to be introduced into or withdrawn from a portion of the storage tank without mixing with the fluid.

The fluid flow line comprising: a first fluid flow line; And a second fluid flow line; Wherein the first fluid flow line provides a path through which fluid flows into or out of a storage tank of a portion of the plurality of storage tanks, The flow of the fluid flowing into the remaining storage tanks other than the storage tanks of the storage tanks of the other storage tanks or flowing out of the remaining storage tanks may be provided.

Wherein the first fluid flow line and the second fluid flow line are configured such that fluid entering or exiting the storage tank of at least one of the plurality of storage tanks is in fluid communication with the first fluid flow line and the second fluid flow line, 2 < / RTI > fluid flow lines.

The fluid flow line comprising: a liquid line providing a path through which the liquefied gas stored by the storage tank flows; A stripping line that can not be unloaded through the liquid line and provides a path through which the liquefied gas remaining in the storage tank is discharged to the outside; A vapor line for providing a path through which the evaporation gas generated by evaporation of the liquefied gas flows; And a condensing line for providing a path through which the re-liquefied condensate in the evaporation gas flows so as to return to the storage tank; Wherein the liquid line, the stripping line, the vapor line, and the condensation line are connected to the liquid reservoir, the evaporation gas, and the condensate flowing into or from the storage tank of the storage tanks of the plurality of storage tanks, A part of the storage tanks is not mixed with the liquefied gas, the evaporation gas and the condensate flowing into the remaining storage tanks other than the storage tanks of the plurality of storage tanks except for the part of the storage tanks or flowing out from the remaining storage tanks, As shown in FIG.

The plurality of storage tanks include at least first to fourth storage tanks; Wherein the fluid flowing into the second storage tank or the fourth storage tank or flowing out of the second storage tank or the fourth storage tank flows through the first fluid flow line and flows into the first storage tank or the fourth storage tank, 3 storage tank, or a fluid that flows out of the first storage tank or the third storage tank may flow through the second fluid flow line.

The plurality of storage tanks include at least first to fourth storage tanks; Wherein the first fluid flow line and the second fluid flow line are configured such that fluid flowing into or out of the fourth storage tank flows into the first fluid flow line or the second fluid flow line, As shown in FIG.

According to another aspect of the present invention, there is provided a fluid flow line for providing a flow path of fluid flowing into or out of a plurality of storage tanks for storing liquefied gas, A liquid line providing a path through which the liquefied gas flows; The liquid line comprising: a first liquid line and a second liquid line; Wherein the liquefied gas flowing into or out of the storage tanks of a portion of the plurality of storage tanks flows through the first liquid line and flows into the storage tanks of the plurality of storage tanks The liquefied gas that flows into the remaining storage tanks or leaves the remaining storage tanks is provided with a fluid flow line for the liquefied gas storage tank that flows through the second liquid line.

Wherein the first liquid line and the second liquid line are configured such that liquefied gas entering or exiting the storage tank of at least one of the plurality of storage tanks is discharged from the first liquid line or the second liquid And may be configured to selectively flow lines.

According to the present invention, one liquid cargo transport line can simultaneously transport different liquid cargoes so that various liquid cargoes can be transported at the same time in accordance with the demand of a market that changes due to fluctuations in oil prices and the like.

1 is a view showing a fluid flow line provided around a liquid gas storage tank according to the related art.
2 is a view showing a configuration of a fluid flow line for a liquid cargo storage tank according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention will be described with reference to an embodiment shown in the drawings, but it is to be understood that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims. On the other hand, the present invention can be applied to a transporting line which simultaneously transports different kinds of liquefied gases. The term 'liquefied gas' in this specification is a concept including Liquefied Natural Gas, Liquefied Petroleum Gas, ethane and ethylene.

2 is a view showing a configuration of a fluid flow line for a liquefied gas storage tank according to an embodiment of the present invention.

Referring to FIG. 2, a plurality of storage tanks 10 for storing liquefied gas are provided. Although FIG. 2 shows the case where the storage tank 10 is four first to fourth storage tanks 12, 14, 16, and 18, this is merely an example, and the liquefied gas storage The quantity of the storage tank 10 to which the fluid flow line for the tank is applied may be any variable within the scope of the present invention.

Meanwhile, pumps for discharging the liquefied gas stored in the storage tank to the outside may be provided inside or outside the storage tank 10. That is, a cargo pump 22 may be provided inside or outside the storage tank 10 to pump the liquefied gas when the liquefied gas is unloaded from the storage tank 10 to the outside. A stripping pump 24 for pumping residual liquefied gas so that the liquefied gas remaining in the storage tank can not be unloaded to the outside by the cargo pump 22 inside or outside the storage tank 10, May be provided.

According to an embodiment of the present invention, various types of fluid flow lines are provided to provide a path through which fluid flows into or out of the storage tank 10.

The fluid flow line according to the present invention is characterized in that the fluid flowing into or out of the storage tanks of some of the plurality of storage tanks is introduced into the remaining storage tanks other than the storage tanks of the plurality of storage tanks And is configured not to be mixed with the fluid flowing out of the remaining storage tanks but to flow into or out of the storage tanks. Therefore, when the fluid flow line according to the present invention is applied to a gas transportation line, two or more kinds of liquefied gas can be transported by one gas transportation line.

To this end, the fluid flow line may comprise a first fluid flow line and a second fluid flow line. According to the present invention, the fluid flowing into or out of a storage tank of a plurality of storage tanks flows through the first fluid flow line and flows into the remaining storage tanks except for some of the plurality of storage tanks And the fluid flowing out of the remaining storage tank flows through the second fluid flow line. Therefore, even if the types of the fluids flowing through the first fluid flow line and the second fluid flow line are different from each other, no mixing occurs between the different fluids, so that heterogeneous fluids can be simultaneously transferred through one transport line. To this end, the first fluid flow line may be connected to some of the storage tanks of the plurality of storage tanks, and the second fluid flow line may be connected to the remaining storage tanks except for some of the plurality of storage tanks.

On the other hand, the fluid flow line includes a liquid line 30 that provides a path through which the liquefied gas stored by the storage tank 10 flows, a liquefied gas line 30 that can not be unloaded through the liquid line 30, A steam line 50 providing a path through which boil-off gas generated by the evaporation of the liquefied gas flows, and a steam line 40 provided outside the storage tank 10 And a condensation line 60 that provides a path through which the condensate flows so that the re-liquefied condensate in the discharged evaporated gas can return to the storage tank 10.

On the other hand, since the fluid flow line may include a first fluid flow line and a second fluid flow line, the liquid line 30 may include a first liquid line 32 and a second liquid line 34). The strip line 40 may include a first stripping line 42 and a second striping line 44 and the steam line 50 may include a first steam line 52 and a second steam line 54, And the condensed line 60 may include a first condensed line 62 and a second condensed line 64. [

According to an embodiment of the present invention, the first fluid flow line may be connected to a storage tank of some of the plurality of storage tanks, and the second fluid flow line may be connected to other storage tanks other than the storage tanks of some of the plurality of storage tanks. The first liquid line 32, the first striping line 42, the first vapor line 52 and the first condensation line 62 can be connected to some storage tanks of a plurality of storage tanks, The second liquid line 34, the second striping line 44, the second vapor line 54 and the second condensation line 64 may be connected to the remaining storage tanks except for some storage tanks of the plurality of storage tanks. Therefore, even if the types of fluids stored in some of the storage tanks of the plurality of storage tanks are different from the types of fluids stored in the remaining storage tanks, the different types of fluids can flow without being mixed with each other so that different types of liquefied gases can be simultaneously transported .

When the number of the storage tanks 10 mounted on the carrier is four as shown in FIG. 2, that is, when the first to fourth storage tanks 12, 14, 16 and 18 are mounted on the carrier, The first liquid line 32, the first striping line 42, the first vapor line 52 and the first condensation line 62 are connected to the second storage tank 14 and the fourth storage tank 18 . The second liquid line 34, the second striping line 44, the second vapor line 54 and the second condensation line 64 are connected to the first storage tank 12 and the third storage tank 16 Can be connected. The fluid that flows into the second storage tank 14 or the fourth storage tank 18 or flows out of the second storage tank 14 or the fourth storage tank 18 flows through the first fluid flow lines 32, 52 and 62 and the fluid flowing into the first storage tank 12 or the third storage tank 16 or flowing out of the first storage tank 12 or the third storage tank 16 flows through the second fluid Flow lines 34, 44, 54, and 64, respectively.

However, the configuration of these lines is arbitrary, and even if the types of fluids stored in some of the storage tanks of the plurality of storage tanks are different from the types of fluids stored in the other storage tanks, It is possible to carry out deformation as much as possible. For example, the number of storage tanks may have various numbers other than four, and the number of storage tanks connected to the first fluid flow line and the second fluid flow line may also be variable. In addition to the first fluid flow line and the second fluid flow line, additional fluid flow lines may be provided to transport more types of liquefied gas (e.g., three or more liquefied gases) simultaneously.

On the other hand, even if two kinds of liquefied gas can be simultaneously transported by using the carrier, the ratio of the liquefied gas to be transported may be different according to the demand of the market demanding the liquefied gas. For example, as shown in FIG. 2, when four storage tanks are provided in a carrier and two storage tanks are connected to a first fluid flow line and two storage tanks are connected to a second fluid flow line One type of liquefied gas is stored in two storage tanks and the other type of liquefied gas is forced to be stored in two storage tanks and one kind of liquefied gas is stored in three storage tanks and one liquefied gas is stored It is impossible to use a method such as storing in a tank. This makes it difficult to transfer flexible liquefied gas according to market demand.

Thus, according to the present invention, the first fluid transfer line and the second fluid transfer line are arranged such that the fluid entering or exiting the at least one storage tank of the plurality of storage tanks, The first fluid flow line or the second fluid flow line. For example, as shown in FIG. 2, the fluid that flows into the fourth storage tank 18 or flows out of the fourth storage tank 18 may be selectively supplied to the first fluid flow line (i.e., (I.e., the second liquid line 34, the second striping line 42, the first vapor line 32, the first strip line 42, the first vapor line 52 and the first condensation line 62) The first fluid flow line and the second fluid flow line may be merged downstream of the fourth storage tank 18 so that the first fluid flow line and the second fluid flow line may flow through the first condenser line 44, the second vapor line 54, and the second condensate line 64, respectively. 2, the first liquid line 32 and the second liquid line 34, the first stripping line 42 and the second striping line 44, the first vapor line 52 and the second vapor line 54, And a first condensed line 62 and a second condensed line 64 are shown.

At this time, in order to prevent mixing between different kinds of fluids, the first fluid flow line and the second fluid flow line are introduced into the fourth storage tank 18 as a downstream of the fourth storage tank 18, The opening / closing means V is provided at a point before the outflowing fluid is introduced into the first to third storage tanks 12, 14 and 16 or before the fluid is discharged from the first to third storage tanks 12, 14 and 16 .

According to the present invention, one of the first fluid flow line and the second fluid flow line in which different kinds of liquefied gas and evaporation gas flow is combined so that different types of liquefied gas can be simultaneously transported, It is possible to control the proportion of the liquefied gas transported in accordance with the change of the market demand of the customer, so that flexible liquefied gas transportation can be achieved. Particularly, the present invention is meaningful in that it can transport not only liquefied natural gas and liquefied petroleum gas, which have been conventionally transported, but also ethane and ethylene, which are increasing in recent years, at the same time.

10 - Storage tank
12 - First storage tank
14 - Second storage tank
16 - Third storage tank
18 - Fourth storage tank
22 - Cargo pump
24 - Stripping pump
30 - Liquid line
32 - first liquid line
34 - second liquid line
40 - Striping line
42 - first striping line
44 - second striping line
50 - Steam line
52 - the first steam line
54 - the second steam line
60 - Condensate line
62 - first condensed line
64 - second condensed line
V - opening and closing means

Claims (8)

A fluid flow line for providing a flow path of fluid flowing into or out of a plurality of storage tanks for storing liquefied gas,
The fluid flow line may include:
The fluid that flows into or out of the storage tanks of a part of the plurality of storage tanks flows into the remaining storage tanks other than the storage tanks of the plurality of storage tanks and flows out of the remaining storage tanks And configured to flow into or out of the storage tank of the portion without being mixed with the fluid,
Fluid flow lines for liquefied gas storage tanks. The method according to claim 1,
The fluid flow line may include:
A first fluid flow line; And
A second fluid flow line; / RTI >
Wherein the first fluid flow line provides a path through which fluid flowing into or out of a storage tank of a portion of the plurality of storage tanks flows,
Wherein the second fluid flow line provides a path through which fluid flowing into or out of the storage tanks other than the storage tanks of the plurality of storage tanks,
Fluid flow lines for liquefied gas storage tanks. The method of claim 2,
The first fluid flow line and the second fluid flow line,
Wherein the fluid flowing into at least one storage tank of the plurality of storage tanks or flowing out of the at least one storage tank is configured to selectively flow through the first fluid flow line or the second fluid flow line.
Fluid flow lines for liquefied gas storage tanks. The method according to claim 1,
The fluid flow line may include:
A liquid line providing a path through which the liquefied gas stored by the storage tank flows;
A stripping line that can not be unloaded through the liquid line and provides a path through which the liquefied gas remaining in the storage tank is discharged to the outside;
A vapor line for providing a path through which the evaporation gas generated by evaporation of the liquefied gas flows; And
A condensate line providing a path through which the re-liquefied condensate of the evaporated gas flows to return to the storage tank; / RTI >
The liquid line, the stripping line, the vapor line and the condensation line,
The liquefied gas, the evaporation gas and the condensate flowing into or out of the storage tanks of a part of the plurality of storage tanks are introduced into the remaining storage tanks other than the storage tanks of the plurality of storage tanks Evaporate gas and condensate flowing out of the remaining storage tanks, and to flow into or out of the storage tanks of the part, without being mixed with the liquefied gas,
Fluid flow lines for liquefied gas storage tanks. The method of claim 2,
Wherein the plurality of storage tanks include:
At least first to fourth storage tanks; Lt; / RTI >
A fluid flowing into the second storage tank or the fourth storage tank or flowing out of the second storage tank or the fourth storage tank flows through the first fluid flow line,
Wherein the fluid flowing into the first storage tank or the third storage tank or flowing out of the first storage tank or the third storage tank flows through the second fluid flow line,
Fluid flow lines for liquefied gas storage tanks. The method of claim 2,
Wherein the plurality of storage tanks include:
At least first to fourth storage tanks; Lt; / RTI >
The first fluid flow line and the second fluid flow line,
Wherein a fluid flowing into the fourth storage tank or flowing out of the fourth storage tank is configured to selectively flow through the first fluid flow line or the second fluid flow line.
Fluid flow lines for liquefied gas storage tanks. A fluid flow line for providing a flow path of fluid flowing into or out of a plurality of storage tanks for storing liquefied gas,
A liquid line providing a path through which the liquefied gas stored by the storage tank flows; / RTI >
The liquid line may include,
A first liquid line and a second liquid line; / RTI >
Wherein a liquefied gas flowing into or out of a storage tank of a portion of the plurality of storage tanks flows through the first liquid line,
Wherein the liquefied gas flowing into the remaining storage tanks other than the storage tanks of the plurality of storage tanks and flowing out from the remaining storage tanks flows through the second liquid line,
Fluid flow lines for liquefied gas storage tanks. The method of claim 7,
Wherein the first liquid line and the second liquid line,
Wherein the liquefied gas flowing into at least one storage tank of the plurality of storage tanks or flowing out of the at least one storage tank is configured to selectively flow through the first liquid line or the second liquid line,
Fluid flow lines for liquefied gas storage tanks.
KR1020160001112A 2016-01-05 2016-01-05 Fluid transferring line for storage tank of liquid gas KR101767555B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114929572A (en) * 2019-12-24 2022-08-19 大宇造船海洋株式会社 Liquefied gas supply system and method for ship and liquefied gas fuel supply system for ship

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114929572A (en) * 2019-12-24 2022-08-19 大宇造船海洋株式会社 Liquefied gas supply system and method for ship and liquefied gas fuel supply system for ship

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