KR101710997B1 - Loading device for lng - Google Patents

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Publication number
KR101710997B1
KR101710997B1 KR1020150172901A KR20150172901A KR101710997B1 KR 101710997 B1 KR101710997 B1 KR 101710997B1 KR 1020150172901 A KR1020150172901 A KR 1020150172901A KR 20150172901 A KR20150172901 A KR 20150172901A KR 101710997 B1 KR101710997 B1 KR 101710997B1
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KR
South Korea
Prior art keywords
natural gas
liquefied natural
transfer
tank
line valve
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Application number
KR1020150172901A
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Korean (ko)
Inventor
신재웅
박일환
박정규
이형기
곽헌섭
이광일
장남규
Original Assignee
에스티엑스조선해양 주식회사
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Priority to KR1020150172901A priority Critical patent/KR101710997B1/en
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Publication of KR101710997B1 publication Critical patent/KR101710997B1/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 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/021—Special adaptations of indicating, measuring, or monitoring equipment having the height as the parameter
    • 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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by vessel
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/061—Level of content in the vessel
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0689—Methods for controlling or regulating
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/024—Improving metering
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/025—Reducing transfer time

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

Abstract

The present invention relates to a liquefied natural gas transfer apparatus for transferring liquefied natural gas from an onshore tank lorry to a liquefied natural gas tank of a ship, the liquefied natural gas transfer apparatus comprising: a buffer tank arranged to receive liquefied natural gas simultaneously from a plurality of tank lorries; A transfer pump disposed in the buffer tank and configured to transfer the liquefied natural gas stored in the buffer tank to the liquefied natural gas tank; And a transfer line connecting the transfer pump and the liquefied natural gas tank.

Description

[0001] LOADING DEVICE FOR LNG [0002]

The present invention relates to a liquefied natural gas transfer device, and more particularly to an apparatus for transferring liquefied natural gas from a plurality of tank lorries to a liquefied natural gas tank of an LNGC.

Natural gas is a widely used energy source in the world and is transported while stored in a LNG carrier (LNGC) for long haul. The natural gas transported to the LNG carrier is transported in a liquefied state, where the volume of liquefied natural gas is significantly less than in the gaseous state. This allows large quantities of natural gas to be transported through the LNG carrier.

LNG carriers can be largely classified into large and small. When shipping liquefied natural gas with a large LNG carrier, liquefied natural gas is transferred from the LNG terminal onshore to the liquefied natural gas tank of the LNG carrier. And when shipped with small LNG carriers, liquefied natural gas is typically transported from tank lorries on land to liquefied natural gas tanks in LNG carriers. At this time, the capacity of the liquefied natural gas tank is often larger than the capacity of the tank lorry. In this case, the liquefied natural gas stored in several tank lorries is sequentially transferred to the liquefied natural gas tank of the LNG carrier.

A conventional liquefied natural gas transfer device is shown in Fig. The liquefied natural gas is transferred from the land tank lorry 20 through the hose 40 to the liquefied natural gas tank 30 of the LNG carrier. At this time, when the transfer of the liquefied natural gas through the one tank lorry 20 is completed, the user disconnects the hose from the tank lorry 20, which has been transported, and connects the hose 40 to the other tank lorry. This process is repeated until the LNG carrier's liquefied natural gas tank 30 load is met.

Such a liquefied natural gas transfer device is disclosed in Korean Patent Laid-Open No. 10-2010-0077194. For reference, in the Korean patent, the tank lorry 20 is denoted by reference numeral 10 (LNG tank truck).

Korean Patent Laid-Open No. 10-2010-0077194 (Working method of LNG fuel marine vessel)

If the tank lorry is smaller than the liquefied natural gas tank of the LNG carrier, the liquefied natural gas is transferred to the liquefied natural gas tank through a plurality of tank lorries. However, conventionally, the hose connected to the liquefied natural gas tank is connected to one tank lorry. Therefore, when the transfer of one tank lorry is completed as a user, there is inconvenience that the connection hose is disconnected and the hose is connected to another tank lorry.

Accordingly, the present invention provides a liquefied natural gas transfer device capable of transferring liquefied natural gas from a plurality of tank lorries to a liquefied natural gas tank of an LNG carrier through one transfer line connection.

The present invention relates to a liquefied natural gas transfer apparatus for transferring liquefied natural gas from an onshore tank lorry to a liquefied natural gas tank of a ship, the liquefied natural gas transfer apparatus comprising: a buffer tank arranged to receive liquefied natural gas simultaneously from a plurality of tank lorries; A transfer pump disposed in the buffer tank and configured to transfer the liquefied natural gas stored in the buffer tank to the liquefied natural gas tank; And a transfer line connecting the transfer pump and the liquefied natural gas tank.

The present invention also provides a liquefied natural gas transfer apparatus for transferring liquefied natural gas from an onshore tank lorry to a liquefied natural gas tank of a ship, the apparatus comprising: a buffer tank arranged to receive liquefied natural gas simultaneously from a plurality of tank lorries; A pressure vessel connected to the buffer tank and supplied with liquefied natural gas from the buffer tank; A transfer pump disposed in the pressure vessel and configured to transfer the liquefied natural gas stored in the pressure vessel to the liquefied natural gas tank; And a transfer line connecting the transfer pump and the liquefied natural gas tank.

And an evaporative gas recovery line connected to the pressure vessel and the buffer tank to send evaporative gas generated in the pressure vessel to the buffer tank.

A transfer line valve provided on the transfer line; A return line branched from a portion of the transfer line located between the transfer pump and the transfer line valve and connected to the buffer tank; And a recovery line valve provided in the recovery line.

And a valve control device provided to control opening and closing of the transfer line valve and the recovery line valve. The valve control device closes the recovery line valve when the transfer line valve is opened, and opens the recovery line valve when the transfer line valve is closed.

A flow meter is also provided at a portion of the transfer line located between the transfer line valve and the liquefied natural gas tank.

A water level sensor installed outside the liquefied natural gas tank and measuring a water level in the liquefied natural gas tank; And a pump controller for controlling the transfer pump using the water level value received from the water level sensor. The pump controller stops the transfer pump when the level value received from the level sensor is equal to or higher than a preset reference level value.

According to the present invention, since it is possible to transfer liquefied natural gas from a plurality of tank lorries to a liquefied natural gas tank of a ship through a single transfer line connection, it is easy to transfer liquefied natural gas, and furthermore, However, this is achieved not by the pumping of the transfer pump but by the pumping of the transfer pump, so that the transfer time can be shortened and the transfer speed can be controlled.

Further, according to the present invention, the maintenance and repair work of the transfer pump can be easily performed.

Further, according to the present invention, the internal pressure of either the buffer tank or the pressure vessel is prevented from becoming excessively high.

Further, according to the present invention, the transfer to the liquefied natural gas tank can be stopped without stopping the transfer pump in the event of an emergency.

Further, according to the present invention, the transfer line and the recovery line operate mutually exclusively, so that the transfer pump can be prevented from being inflexible.

Further, according to the present invention, it is easy to integrate the amount of liquefied natural gas transferred to the liquefied natural gas tank.

Further, according to the present invention, the operation of the feed pump is automatically stopped when the load amount of the liquefied natural gas tank is satisfied.

1 is a view showing a conventional liquefied natural gas transfer apparatus.
2 is a view showing a liquefied natural gas transfer apparatus according to the present invention.
3 is a view showing a liquefied natural gas transfer apparatus according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a liquefied natural gas transfer device according to the present invention will be described in detail with reference to the drawings. It is to be understood that the terminology or words used herein are not to be construed in an ordinary sense or a dictionary, and that the inventor can properly define the concept of a term to describe its invention in the best possible way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

≪ Embodiment 1 >

A first embodiment 100 of the present invention includes a buffer tank 110, a transfer pump 130, and a transfer line 150, as shown in FIG.

The buffer tank 110 is provided to receive liquefied natural gas from the plurality of tank louvers 20 at the same time. The buffer tank 110 can transfer the liquefied natural gas from the plurality of tank louvers 20 to the liquefied natural gas tank 30 of the ship through one connection of the transfer line 150, The natural gas transfer process becomes easier.

The transfer pump 130 is provided in the buffer tank 110. The transfer pump 130 pumps the liquefied natural gas supplied into the buffer tank 110 to the liquefied natural gas tank 30 of the ship.

Conventionally, liquefied natural gas has been transferred to the liquefied natural gas tank 30 of the ship by using the pressure of the tank lorry 20 itself. Accordingly, in transferring the liquefied natural gas from the tank lorry 20 to the liquefied natural gas tank 30, not only it took much time, but also the control of the conveying speed was impossible. However, in the present invention, since the transfer pump 130 is used to transfer the liquefied natural gas from the tank lorry 20 to the liquefied natural gas tank 30, the transfer time of the liquefied natural gas can be further shortened.

When the transfer pump 130 is used for transferring the liquefied natural gas, the conveying speed of the liquefied natural gas can be controlled. For example, at the initial stage of the transportation of the liquefied natural gas, the pressure of the liquefied natural gas tank 30 is low, so that the rpm of the transfer pump 130 is increased to speed up the transfer. The rpm of the transfer pump 130 is lowered, and the transfer is carried out carefully and slowly.

The transfer line 150 is connected to the transfer pump 130 and the liquefied natural gas tank 30. However, in the process of transporting the liquefied natural gas through the transfer line 150, there may occur an emergency situation in which the transfer to the liquefied natural gas tank 30 must be temporarily stopped. In this case, if the operation of the transfer pump 130 is stopped, it may take time to operate the transfer pump 130 again.

In order to solve the above problem, the transfer line 150 is provided with a transfer line valve 151. A recovery line 170 branched from a portion of the transfer line 150 located between the transfer pump 130 and the transfer line valve 151 and connected to the buffer tank 110 is provided. The recovery line 170 is provided with a recovery line valve 171.

When the recovery line valve 171 is opened while the transfer line valve 151 is closed, the liquefied natural gas is circulated to the buffer tank 110 again via the recovery line 170. Therefore, the transfer to the liquefied natural gas tank 30 can be stopped without stopping the transfer pump 130 in the event of an emergency.

On the other hand, if the return line valve 151 is closed but the return line valve 171 is not opened, the liquefied natural gas becomes blocked due to clogging. As a result, the feed pump 130 may be damaged. Therefore, opening or closing of the transfer line valve 151 and opening or closing of the recovery line valve 171 are mutually exclusive, and preferably occur almost simultaneously.

And a valve control device (not shown) provided to control the opening and closing of the transfer line valve 151 and the recovery line valve 171 for this purpose. The valve control device closes the recovery line valve 171 when the transfer line valve 151 is opened and opens the recovery line valve 171 when the transfer line valve 151 is closed. As a result, the backflow of the liquefied natural gas is prevented, and the transfer pump 130 is not overloaded.

Since the liquefied natural gas transfer apparatus 100 provided as described above is supplied with the liquefied natural gas from the plurality of tank louvers 20 at the same time, the user can know how much liquefied natural gas has been transferred to the liquefied natural gas tank 30 Is not easy to integrate. Therefore, a flow meter (not shown) is provided at a portion of the transfer line 150 located between the transfer line valve 151 and the liquefied natural gas tank 30.

The user can easily calculate how much liquefied natural gas has been transferred to the liquefied natural gas tank 30 through the flow meter provided as described above. Thereafter, the user ends the transfer of the liquefied natural gas when the load of the liquefied natural gas tank 30 is satisfied.

In order to facilitate the user's operation, the liquefied natural gas transfer apparatus 100 according to the present invention may include a water level sensor (not shown) and a pump controller (not shown).

The level measuring sensor is installed outside the liquefied natural gas tank 30 to measure the water level in the liquefied natural gas tank 30. The pump controller stops the transfer pump 130 when the water level received from the water level sensor is equal to or higher than a preset reference water level.

≪ Embodiment 2 >

In the second embodiment 200 of the present invention, the pressure vessel 220 is provided as shown in FIG. 3, and the transfer pump 230 is placed in the pressure vessel 220. And an evaporative gas recovery line 221 for connecting the pressure vessel 220 and the buffer tank 210 is provided. The second embodiment 200 of the present invention is the same as the first embodiment 100 except for the above three. Therefore, only the position of the pressure vessel 220, the transfer pump 230, and the evaporation gas recovery line 221 will be described below.

The pressure vessel 220 included in the present embodiment 200 is provided to receive the liquefied natural gas from the buffer tank 210. The transfer pump 230 is located in the pressure vessel 220.

The feed pump 230 is mainly a submerged type. The buffer tank 210 is relatively larger in size than the pressure vessel 220 and the transfer pump 230 and is supplied with liquefied natural gas from a plurality of tank louvers 20. Therefore, if the transfer pump 230 is located in the buffer tank 210, maintenance and repair of the transfer pump 230 may not be easy.

However, the size of the pressure vessel 220 may be sufficient to accommodate the transfer pump 230. Therefore, when the transfer pump 230 is located in the pressure vessel 220, the transfer pump 230 can be easily maintained and repaired.

On the other hand, the liquefied natural gas stored in the buffer tank 210 and the pressure vessel 220 is maintained in a liquid state at a cryogenic temperature, and a part of the liquefied natural gas is vaporized into a vaporized gas due to a temperature change. This evaporation gas causes the internal pressure of the buffer tank 210 and the pressure vessel 220 to rise. If the internal pressure of the buffer tank 210 and the pressure vessel 220 is excessively increased, the buffer tank 210 and the pressure vessel 220 may be detonated.

In order to solve the above problem, an evaporative gas recovery line 221 for connecting the pressure vessel 220 and the buffer tank 210 is provided. The evaporation gas is moved from the high pressure state to the low pressure state in the buffer tank 210 and the pressure vessel 220 through the evaporation gas recovery line 221. This prevents the internal pressure of either the buffer tank 210 or the pressure vessel 220 from becoming excessively high.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

100, 200: liquefied natural gas transfer device 110, 210: buffer tank
130, 230: transfer pump 150, 250: transfer line
151, 251: transfer line valve 170, 270: return line
171, 271: return line valve 220: pressure vessel
221: Evaporative gas recovery line
10 Conventional liquefied natural gas transfer device 20: Tank lorry
30: liquefied natural gas tank 40: hose

Claims (7)

1. A liquefied natural gas transfer device for transferring liquefied natural gas from an onshore tank lorry to a liquefied natural gas tank of a ship,
A buffer tank provided on the land so that liquefied natural gas can be simultaneously supplied from a plurality of tank lorries located on the ground;
A transfer pump disposed in the buffer tank and configured to transfer the liquefied natural gas stored in the buffer tank to the liquefied natural gas tank;
A transfer line connecting the transfer pump and the liquefied natural gas tank;
A transfer line valve provided on the transfer line;
A return line branched from a portion of the transfer line located between the transfer pump and the transfer line valve and connected to the buffer tank;
A recovery line valve provided in the recovery line; And
A valve control device for controlling the opening and closing of the transfer line valve and the recovery line valve, the valve control device closing the recovery line valve when the transfer line valve is opened and opening the recovery line valve when the transfer line valve is closed, The liquefied natural gas transfer device comprising: 1. A liquefied natural gas transfer device for transferring liquefied natural gas from an onshore tank lorry to a liquefied natural gas tank of a ship,
A buffer tank provided on the land so that liquefied natural gas can be simultaneously supplied from a plurality of tank lorries located on the ground;
A pressure vessel connected to the buffer tank and supplied with liquefied natural gas from the buffer tank;
A transfer pump disposed in the pressure vessel and configured to transfer the liquefied natural gas stored in the pressure vessel to the liquefied natural gas tank;
A transfer line connecting the transfer pump and the liquefied natural gas tank;
A transfer line valve provided on the transfer line;
A return line branched from a portion of the transfer line located between the transfer pump and the transfer line valve and connected to the buffer tank;
A recovery line valve provided in the recovery line; And
A valve control device for controlling the opening and closing of the transfer line valve and the recovery line valve, the valve control device closing the recovery line valve when the transfer line valve is opened and opening the recovery line valve when the transfer line valve is closed, The liquefied natural gas transfer device comprising: 3. The method of claim 2,
And an evaporative gas recovery line connected to the pressure vessel and the buffer tank for transferring evaporative gas generated in the pressure vessel to the buffer tank. delete delete 3. The method according to claim 1 or 2,
And a flow meter is provided at a portion of the transfer line located between the transfer line valve and the liquefied natural gas tank. 3. The method according to claim 1 or 2,
A water level sensor installed outside the liquefied natural gas tank and measuring a water level in the liquefied natural gas tank;
And a pump controller for controlling the transfer pump using a water level value received from the water level sensor,
Wherein the pump controller stops the transfer pump when the water level value received from the water level sensor is equal to or higher than a preset reference water level value.
KR1020150172901A 2015-12-07 2015-12-07 Loading device for lng KR101710997B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3536599A1 (en) * 2018-03-06 2019-09-11 Naturgy Energy Group S.A. Refueling tanker ship for ships powered by liquefied natural gas (lng), as well as a liquefied natural gas lng loading station
CN111928112A (en) * 2020-09-10 2020-11-13 重庆耐德能源装备集成有限公司 LNG loading and unloading vehicle pipeline structure, device, loading and unloading vehicle method and metering method
CN114076261A (en) * 2020-08-17 2022-02-22 安瑞科(廊坊)能源装备集成有限公司 Natural gas filling system and filling method
KR20220058075A (en) 2020-10-30 2022-05-09 (주)한준에프알 Cryogenic liquid pump using pneumatic motor and transfer method of cryogenic liquid using the same
KR20220155811A (en) 2021-05-17 2022-11-24 한국해양과학기술원 Mobile multifunctional bunkering truck

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100077194A (en) 2007-11-12 2010-07-07 바르실라 핀랜드 오이 Method for operating a lng fuelled marine vessel
KR20110007450A (en) * 2009-07-16 2011-01-24 대우조선해양 주식회사 A co2 carrying ship
JP2013540958A (en) * 2010-08-25 2013-11-07 バルチラ・オイル・アンド・ガス・システムズ・アクティーゼルスカブ Method and apparatus for providing LNG fuel for a ship
KR20140070815A (en) * 2012-11-27 2014-06-11 에스티엑스조선해양 주식회사 LNG supply method and system for the ship having multi-tanks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100077194A (en) 2007-11-12 2010-07-07 바르실라 핀랜드 오이 Method for operating a lng fuelled marine vessel
KR20110007450A (en) * 2009-07-16 2011-01-24 대우조선해양 주식회사 A co2 carrying ship
JP2013540958A (en) * 2010-08-25 2013-11-07 バルチラ・オイル・アンド・ガス・システムズ・アクティーゼルスカブ Method and apparatus for providing LNG fuel for a ship
KR20140070815A (en) * 2012-11-27 2014-06-11 에스티엑스조선해양 주식회사 LNG supply method and system for the ship having multi-tanks

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EP3536599A1 (en) * 2018-03-06 2019-09-11 Naturgy Energy Group S.A. Refueling tanker ship for ships powered by liquefied natural gas (lng), as well as a liquefied natural gas lng loading station
CN114076261A (en) * 2020-08-17 2022-02-22 安瑞科(廊坊)能源装备集成有限公司 Natural gas filling system and filling method
CN114076261B (en) * 2020-08-17 2023-12-19 安瑞科(廊坊)能源装备集成有限公司 Natural gas filling system and filling method
CN111928112A (en) * 2020-09-10 2020-11-13 重庆耐德能源装备集成有限公司 LNG loading and unloading vehicle pipeline structure, device, loading and unloading vehicle method and metering method
KR20220058075A (en) 2020-10-30 2022-05-09 (주)한준에프알 Cryogenic liquid pump using pneumatic motor and transfer method of cryogenic liquid using the same
KR20220155811A (en) 2021-05-17 2022-11-24 한국해양과학기술원 Mobile multifunctional bunkering truck
KR102580616B1 (en) * 2021-05-17 2023-09-20 한국해양과학기술원 Mobile multifunctional bunkering truck

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