JP6574321B1 - Floating body type low temperature liquefied gas filling equipment and low temperature liquefied gas delivery method using the same - Google Patents

Floating body type low temperature liquefied gas filling equipment and low temperature liquefied gas delivery method using the same Download PDF

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JP6574321B1
JP6574321B1 JP2019025847A JP2019025847A JP6574321B1 JP 6574321 B1 JP6574321 B1 JP 6574321B1 JP 2019025847 A JP2019025847 A JP 2019025847A JP 2019025847 A JP2019025847 A JP 2019025847A JP 6574321 B1 JP6574321 B1 JP 6574321B1
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liquefied gas
low
temperature liquefied
filling
hose
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JP2020133723A (en
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百代 結城
百代 結城
尾崎 誠
誠 尾崎
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Japan Petroleum Exploration Co Ltd
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Priority to CN201980092129.0A priority patent/CN113474247B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D9/00Apparatus or devices for transferring liquids when loading or unloading ships
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C9/00Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure

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

Abstract

【課題】地上の複数の輸送トラック上に配置されたコンテナに直接にまた同時に低温液化ガスを充填し、低温液化ガスの受け入れ設備の無い場所にでも、低温液化ガスを配送することを可能とする浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法を提供する。【解決手段】本発明による浮体式低温液化ガス充填設備10は、海上から陸上に低温液化ガスを配送する浮体式低温液化ガス充填設備であって、バージタンク12と、バージタンクから地上の輸送トラック40上のコンテナ41に低温液化ガスを移送するためのホース13と、ホースの一端に着脱可能に取り付けられる低温液化ガス分配ユニット20と、低温液化ガス移送中にホースを所定の高さに保持するクレーン14と、低温液化ガスをコンテナに充填する充填手段15と、を有し、分配ユニットは低温液化ガスの流入口と、複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁とを備える。【選択図】図1A container disposed on a plurality of transportation trucks on the ground is directly and simultaneously filled with a low-temperature liquefied gas, so that the low-temperature liquefied gas can be delivered even to a place where there is no facility for receiving the low-temperature liquefied gas. A floating low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same are provided. A floating low-temperature liquefied gas filling equipment according to the present invention is a floating low-temperature liquefied gas filling equipment for delivering a low-temperature liquefied gas from the sea to the land, a barge tank, and a transport truck from the barge tank to the ground. A hose 13 for transferring the low-temperature liquefied gas to the container 41 on 40, a low-temperature liquefied gas distribution unit 20 detachably attached to one end of the hose, and holding the hose at a predetermined height during the low-temperature liquefied gas transfer A crane 14 and a filling means 15 for filling the container with the low-temperature liquefied gas, and the distribution unit selectively opens and closes the low-temperature liquefied gas inlet, the plurality of outlets, and the respective outlets. And a valve. [Selection] Figure 1

Description

本発明は、浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法に関し、特に、地上の複数の輸送トラック上に配置されたコンテナに直接にまた同時に低温液化ガスを充填することを可能とし、低温液化ガスの受け入れ設備の無い場所にでも、容易にまた効率的に低温液化ガスを配送することを可能とする浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法である。   The present invention relates to a floating-type cryogenic liquefied gas filling facility and a cryogenic liquefied gas delivery method using the same, and more particularly to filling a cryogenic liquefied gas directly and simultaneously into containers arranged on a plurality of transportation trucks on the ground. Floating-type low-temperature liquefied gas filling equipment that enables easy and efficient delivery of low-temperature liquefied gas even where there is no low-temperature liquefied gas receiving facility, and a low-temperature liquefied gas delivery method using the same is there.

自国で石油やガスを産出する国は、自国の消費量を超える産出量があれば、必要量を消費した後の余剰分の石油やガスを輸出に回すことができるが、石油やガスの産出量が消費量に満たなければ他国から輸入することになる。この場合、燃料として購入する石油やガスとしては環境負荷の少ない液化石油ガス(LPG)や液化天然ガス(LNG)などの液化ガスが望ましく、特に液化天然ガスは石油製品に比べてCO排出量が少なく、価格も安いことから今後の流通が期待されている。 A country that produces oil and gas in its own country can send excess oil and gas after consuming the necessary amount to export if it exceeds its own consumption. If the amount does not meet the consumption, it will be imported from another country. In this case, liquefied gas such as liquefied petroleum gas (LPG) and liquefied natural gas (LNG) having a low environmental impact is desirable as oil and gas to be purchased as fuel. In particular, liquefied natural gas emits less CO 2 than petroleum products. There are few, and the price is cheap, so future distribution is expected.

低温により液化した低温液化ガスは専用の大型輸送船(LNG船)で海上輸送される。輸送された低温液化ガスは、通常受け入れ側の一次基地となる貯蔵設備に移され、この貯蔵設備から二次基地となる貯蔵設備に陸上移送するか、ガス化設備でガス化した後パイプラインを使って直接需要者のもとに届けられる。
また、受け入れ側の一次基地となる貯蔵設備やガス化設備が設けられない場合、輸送された低温液化ガスは大型輸送船から浮体式液化天然ガス貯蔵再ガス化設備(FSRU)に移され、一次基地の代わりに貯蔵したり、ガス化して地上のパイプラインに供給されたりする流通方法も実用化されている。
The low-temperature liquefied gas liquefied at low temperature is transported by sea on a dedicated large transport ship (LNG ship). The transported low-temperature liquefied gas is usually transferred to the storage facility that is the primary base on the receiving side, and is transferred from this storage facility to the storage facility that is the secondary base, or gasified by the gasification facility and then pipelined. Used directly to consumers.
In addition, if there is no storage facility or gasification facility to be the primary base on the receiving side, the transported low-temperature liquefied gas is transferred from the large transport ship to the floating liquefied natural gas storage and regasification facility (FSRU), Distribution methods such as storage instead of a base or gasification and supply to a pipeline on the ground have also been put into practical use.

しかし、LNG船やFSRUが接岸できるような大型かつ十分な深度を持つ港湾設備を備えた港は限られており、低温液化ガスの受け入れ態勢が整っている地域は限定される。特に島が点在する地域や発展途上の地域ではこうした大型の専用インフラを、ガスを利用したい全ての地域に整備するのは現実的ではない。   However, there are only a limited number of ports with large and deep harbor facilities that allow LNG ships and FSRUs to berth, and there are limited areas where the system for receiving low-temperature liquefied gas is in place. In particular, in areas where islands are scattered and developing areas, it is not realistic to develop such a large dedicated infrastructure in all areas where gas is to be used.

特許文献1には、浮体構造物上に、低温液化ガスの貯蔵設備と、貯蔵設備内の低温液化ガスを貯蔵設備外へ取り出して被供給側へ送るようにするポンプと、低温液化ガスを気化したガスとして送り出せるようにする気化器を有する供給設備とを備え、低温液化ガスを液体のまま、あるいは気化ガスとして被供給側へ供給できるようにしてある浮体式輸送設備を備えた離島への低温液化ガス配送装置が開示されている。   Patent Document 1 discloses a low-temperature liquefied gas storage facility, a pump for taking out the low-temperature liquefied gas in the storage facility out of the storage facility and sending it to the supply side, and vaporizing the low-temperature liquefied gas on the floating structure. To a remote island equipped with a floating transportation facility that has a vaporizer that can be sent out as a gas, and that can supply low-temperature liquefied gas as a liquid or vaporized gas to the supply side. A cryogenic liquefied gas delivery device is disclosed.

特許文献1によれば、浮体式輸送設備は低温液化ガスを液体のまま、あるいは気化ガスとして供給できることから、受け入れ側の設備に必ずしもガス化設備を含む必要がなくなるなど、選択肢が増えるというメリットはあるが、特許文献1の技術では、低温液化ガスを受け入れる港湾に、こうした受け入れ設備があることが前提となっている。   According to Patent Document 1, since the floating transportation facility can supply the low-temperature liquefied gas as a liquid or as a vaporized gas, there is no merit that there are more options, such as the necessity of including the gasification facility in the receiving facility. However, in the technique of Patent Document 1, it is assumed that such a receiving facility is provided in a port that receives a low-temperature liquefied gas.

しかし小規模であるとしても、受け入れ設備の建設費用は高額であり、低温液化ガスを配送する港湾毎に容易に建設できるものではない。また燃料として低温液化ガスを必要とする地域と、低温液化ガスを配送する港湾とが離れている場合には、これに加えて長いパイプラインの建設が必要となり、実現は難しい。
そこで低温液化ガスの受け入れ地点となる港に受け入れ設備がない場合でも、低温液化ガスを容易に、かつ効率的に配送する設備や方法の実現が望まれる。
However, even if it is small-scale, the construction cost of receiving facilities is high, and it cannot be easily constructed for each port that delivers low-temperature liquefied gas. In addition, when a region that requires low-temperature liquefied gas as a fuel and a port that delivers low-temperature liquefied gas are separated, it is necessary to construct a long pipeline in addition to this, which is difficult to realize.
Therefore, it is desirable to realize facilities and methods for easily and efficiently delivering low-temperature liquefied gas even when there is no receiving facility at a port that is a receiving point for low-temperature liquefied gas.

特開2009−191860号公報JP 2009-191860 A

本発明は、上記従来の浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法における問題点に鑑みてなされたものであって、本発明の目的は、地上の複数の輸送トラック上に配置されたコンテナに直接にまた同時に低温液化ガスを充填することを可能とし、低温液化ガスの受け入れ設備の無い場所にでも、容易にまた効率的に低温液化ガスを配送することを可能とする浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法を提供するところにある。   The present invention has been made in view of the problems in the conventional floating-type low-temperature liquefied gas filling equipment and the low-temperature liquefied gas delivery method using the same, and the object of the present invention is on a plurality of ground transportation trucks. It is possible to directly and simultaneously fill a container placed in a low-temperature liquefied gas, and to deliver a low-temperature liquefied gas easily and efficiently even in a place without a low-temperature liquefied gas receiving facility. A floating-type low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same are provided.

上記目的を達成するためになされた本発明による浮体式低温液化ガス充填設備は、海上から陸上に低温液化ガスを配送する浮体式低温液化ガス充填設備であって、低温液化ガスを一時的に充填して貯蔵するバージタンクと、液化ガス供給設備から前記バージタンクに低温液化ガスを移送し、前記バージタンクから地上の輸送トラック上に配置されたコンテナに低温液化ガスを移送するためのホースと、前記ホースの一端に着脱可能に取り付けられる低温液化ガス分配ユニットと、低温液化ガス移送中に前記ホースを所定の高さに保持するクレーンと、低温液化ガスを前記コンテナに充填する充填手段と、を有し、前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、一端が前記排出口に接続され、他端が前記コンテナの注入口に接続される複数の注入ホースと、前記クレーンによって吊り上げるためのフックと、を備え、前記低温液化ガス分配ユニットは同時に複数のコンテナに充填する場合に前記充填手段に接続された前記ホースの一端に取り付けられ、前記クレーンによって所定の高さに吊り上げられて使用され、前記低温液化ガス分配ユニットはロート状又は円盤状の形状であり、前記複数の排出口は流出特性が均等となるよう等間隔に配置され、前記開閉弁の弁開度は、それぞれの排出口からの低温液化ガスの排出流量が等しくなるように調整され、前記注入ホースはコンテナへの接続側の端部にコンテナとの接続を検出するセンサ又はコンテナとの接続が行われると作動するスイッチを備え、前記注入ホースが接続される排出口の開閉弁は、前記注入ホースのコンテナへの接続が行われないと開動作が行われないように構成されることを特徴とする。 The floating low-temperature liquefied gas filling equipment according to the present invention made to achieve the above object is a floating low-temperature liquefied gas filling equipment for delivering a low-temperature liquefied gas from the sea to the land, and is temporarily filled with the low-temperature liquefied gas. A barge tank to be stored, a hose for transferring low-temperature liquefied gas from the liquefied gas supply facility to the barge tank, and transferring the low-temperature liquefied gas from the barge tank to a container disposed on a ground transportation truck, A cryogenic liquefied gas distribution unit that is detachably attached to one end of the hose, a crane that holds the hose at a predetermined height during the cryogenic liquefied gas transfer, and a filling means that fills the container with the cryogenic liquefied gas. The low-temperature liquefied gas distribution unit has a low-temperature liquefied gas inlet connected to one end of the hose, and the low-temperature liquefied gas is supplied to the plurality of containers. A plurality of discharge port for discharging at opening and closing valve which opens and closes the respective discharge ports selectively perform one end connected to the discharge port, and a plurality of injection hose the other end connected to the inlet of the container A hook for lifting by the crane, and the cryogenic liquefied gas distribution unit is attached to one end of the hose connected to the filling means when simultaneously filling a plurality of containers, and has a predetermined height by the crane. The low-temperature liquefied gas distribution unit has a funnel-like or disc-like shape, and the plurality of outlets are arranged at equal intervals so that the outflow characteristics are uniform. Once again, be adjusted to the discharge flow rate of the low-temperature liquefied gas from each discharge port are equal, the injection hose against the container end of the connecting side to the container A switch that operates when the sensor is connected to the container or the container, and the opening / closing valve of the outlet to which the injection hose is connected is opened when the injection hose is not connected to the container. It is constructed so as not to be broken.

前記低温液化ガス分配ユニットはそれぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段を備え、検出した低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整可能であることが好ましい。   The low-temperature liquefied gas distribution unit includes flow rate detecting means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each discharge port, and is separate from the on-off valve or the on-off valve based on the detected low-temperature liquefied gas flow rate. It is preferable that the discharge flow rate of the low-temperature liquefied gas can be individually adjusted by a flow rate adjusting means provided individually.

温液化ガスは前記充填手段により前記バージタンクから前記ホース、前記低温液化ガス分配ユニットを介して一又は複数の前記コンテナに直接移送されることが好ましい。
The hose low temperature liquefied gas from the barge tank by said filling means, preferably be transferred directly to one or more of the containers through the low-temperature liquefied gas distribution unit.

前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることが好ましい。   The low-temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply facility is a liquefied natural gas ship or a floating liquefied natural gas storage regasification facility (FSRU), and the filling means is a pressurized evaporator or A pump is preferred.

上記目的を達成するためになされた本発明による低温液化ガス配送方法は上記浮体式低温液化ガス充填設備を使用した低温液化ガス配送方法であって、液化ガス供給設備に浮体式低温液化ガス充填設備を係留した後、液化ガス供給設備から浮体式低温液化ガス充填設備のバージタンクにホースを介して低温液化ガスを移送する受け入れ段階と、浮体式低温液化ガス充填設備を低温液化ガスの引き渡し場所まで移動させる輸送段階と、充填手段により前記バージタンクから前記ホースを介して地上の輸送トラック上に配置されたコンテナに直接低温液化ガスを充填する充填段階と、を有し、同時に複数のコンテナに低温液化ガスを充填する場合、前記充填段階の前に前記ホースの排出側の一端に複数の排出口を備える低温液化ガス分配ユニットを接続する接続段階をさらに有することを特徴とする。   The low-temperature liquefied gas delivery method according to the present invention made to achieve the above object is a low-temperature liquefied gas delivery method using the above-mentioned floating-type low-temperature liquefied gas filling equipment, and the floating-type low-temperature liquefied gas filling equipment in the liquefied gas supply equipment After the mooring, the receiving stage for transferring the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank of the floating low-temperature liquefied gas filling equipment via the hose, and the floating low-temperature liquefied gas filling equipment to the delivery location of the low-temperature liquefied gas A transportation stage for moving, and a filling stage for directly filling a cryogenic liquefied gas into a container disposed on a ground transportation truck from the barge tank via the hose by a filling means, and simultaneously cooling a plurality of containers at a low temperature When filling liquefied gas, a low-temperature liquefied gas distribution unit comprising a plurality of outlets at one end of the hose discharge side before the filling stage Characterized by further comprising a connection step of connecting.

前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、それぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段とを備え、前記充填段階は同時に充填する前記コンテナの数に合わせて必要な排出口の開閉弁を選択的に開口する選択段階と、前記流量検出手段により検出された低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整する調整段階と、を含むことが好ましい。   The low-temperature liquefied gas distribution unit selectively selects a low-temperature liquefied gas inlet connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and opening and closing of the respective outlets. And a flow rate detecting means for individually detecting the flow rate of the low-temperature liquefied gas discharged from the respective discharge ports, and the filling stage has the necessary number of discharge ports according to the number of the containers to be filled at the same time. The selection step of selectively opening the on-off valve, and the discharge of the low-temperature liquefied gas by the flow rate adjusting means provided separately from the on-off valve or the on-off valve based on the flow rate of the low-temperature liquefied gas detected by the flow rate detecting means And adjusting the flow rate individually.

前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることが好ましい。   The low-temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply facility is a liquefied natural gas ship or a floating liquefied natural gas storage regasification facility (FSRU), and the filling means is a pressurized evaporator or A pump is preferred.

本発明による浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法によれば、浮体式低温液化ガス充填設備から直接に輸送トラック上に配置されたコンテナに充填されるため、低温液化ガスを受け入れる港には輸送トラックを停車するエリアさえあれば低温液化ガスの移送ができるため、高額な受け入れ設備を建設する必要がなく、こうした設備を持たない多くの地域にも容易に低温液化ガスの配送が可能である。   According to the floating low temperature liquefied gas filling equipment and the low temperature liquefied gas delivery method using the same according to the present invention, the container placed on the transport truck is filled directly from the floating low temperature liquefied gas filling equipment. The port that accepts gas can transport cryogenic liquefied gas as long as there is an area where transport trucks stop. Therefore, it is not necessary to construct expensive receiving equipment, and it is easy to use cryogenic liquefied gas in many areas that do not have such equipment. Can be delivered.

また、本発明による本浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法によれば、低温液化ガスは、低温液化ガス分配ユニットにより浮体式低温液化ガス充填設備から複数本の注入ホースに選択的に分流されるために、受け入れ側の輸送トラックの台数に合わせて分流し、同時充填が可能となる。これにより効率的に低温液化ガスの充填作業を行うことが可能となる。複数台のコンテナに同時充填する際、低温液化ガス分配ユニットのそれぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段と流量調節手段を備えることにより、充填時間のばらつきを抑え、最も効率よく充填作業を行うことが可能となる。   Further, according to the floating low-temperature liquefied gas filling equipment and the low-temperature liquefied gas delivery method using the same according to the present invention, the low-temperature liquefied gas is injected from the floating low-temperature liquefied gas filling equipment by the low-temperature liquefied gas distribution unit. Since it is selectively diverted to the hose, it can be diverted according to the number of transport trucks on the receiving side, and simultaneous filling becomes possible. This makes it possible to efficiently perform the low temperature liquefied gas filling operation. When multiple containers are filled at the same time, by providing flow rate detection means and flow rate adjustment means that individually detect the flow rate of the low-temperature liquefied gas discharged from each discharge port of the low-temperature liquefied gas distribution unit, variation in filling time This makes it possible to perform the filling operation most efficiently.

さらに、本発明による浮体式低温液化ガス充填設備は、受け入れと払い出しに使用するホースとこれを支持するクレーンを備えるため、液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備などの液化ガス供給設備側には、液化天然ガス移送のためのホースやクレーンを装備する必要がない。同様に受け入れ側にもホースやクレーンを装備する必要がない。従い、港にトラックが停車する余地さえあれば、1つの浮体式低温液化ガス充填設備により、複数地点でのトラック上コンテナへ低温液化ガス充填も可能となる。また、例えば陸上にトラック充填設備を備えた一次基地が建設される等により、当該地でのコンテナへの低温液化ガス充填が将来不要となった場合でも、別の地域や島へ曳航或いは自走し、そうした一次基地の無い場所でも、低温液化ガスの配給事業を実施することが出来る。   Furthermore, since the floating low-temperature liquefied gas filling equipment according to the present invention includes a hose used for receiving and discharging and a crane supporting the hose, a liquefied gas such as a liquefied natural gas ship or a floating liquefied natural gas storage regasification equipment is used. There is no need to equip the supply equipment with a hose or crane for transferring liquefied natural gas. Likewise, there is no need to equip the receiving side with a hose or crane. Therefore, as long as there is room for the truck to stop at the port, a single low-temperature liquefied liquefied gas filling facility can be used for filling the liquefied liquefied gas into the containers on the truck at a plurality of points. Even if, for example, a primary base equipped with a truck filling facility is built on land, it will no longer be necessary to fill the container with low-temperature liquefied gas in the future. And even in places where there is no such primary base, a low-temperature liquefied gas distribution business can be implemented.

低温液化ガスが充填されたコンテナはトラック、鉄道、貨物船等で運搬可能である為、パイプラインや専用設備、1次基地・2次基地などを必要とせずに、直接広範囲に点在するより小規模な需要家に届けることが可能となる。   Containers filled with low-temperature liquefied gas can be transported by truck, railway, cargo ship, etc., so there is no need for pipelines, dedicated facilities, primary bases, secondary bases, etc. It can be delivered to small customers.

本発明の実施形態による浮体式低温液化ガス充填設備と、これを用いた低温液化ガス配送方法を概略的に示す図である。It is a figure which shows roughly the floating body type low temperature liquefied gas filling equipment by embodiment of this invention, and the low temperature liquefied gas delivery method using the same. 本発明の実施形態による浮体式低温液化ガス充填設備による地上のコンテナに低温液化ガスを移送する方法を平面的に示す概略的図である。It is the schematic which shows planarly the method to transfer low-temperature liquefied gas to the ground container by the floating type low-temperature liquefied gas filling equipment by embodiment of this invention. 本発明の実施形態による低温液化ガス分配ユニットの構造を概略的に示す図である。It is a figure which shows roughly the structure of the low-temperature liquefied gas distribution unit by embodiment of this invention. 本発明の実施形態による低温液化ガス配送方法を説明するためのフローチャートである。It is a flowchart for demonstrating the low-temperature liquefied gas delivery method by embodiment of this invention.

次に、本発明に係る浮体式低温液化ガス充填設備及びこれを用いた低温液化ガス配送方法を実施するための形態の具体例を、図面を参照しながら詳細に説明する。
図1は、本発明の実施形態による浮体式低温液化ガス充填設備と、これを用いた低温液化ガス配送方法を概略的に示す図である。
図1を参照すると、本発明の実施形態による浮体式低温液化ガス充填設備10は、海上に浮かぶ浮体本体11と、浮体本体11上に備えられたバージタンク12、ホース13、クレーン14、充填手段15、及び低温液化ガス分配ユニット20を有する。
Next, a specific example of a mode for carrying out a floating-type low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram schematically showing a floating low-temperature liquefied gas filling facility and a low-temperature liquefied gas delivery method using the same according to an embodiment of the present invention.
Referring to FIG. 1, a floating cryogenic liquefied gas filling facility 10 according to an embodiment of the present invention includes a floating body 11 floating on the sea, a barge tank 12 provided on the floating body 11, a hose 13, a crane 14, and filling means. 15 and a cryogenic liquefied gas distribution unit 20.

本発明の実施形態による浮体式低温液化ガス充填設備10は、液化ガス供給設備から低温液化ガスをバージタンク12に移送して一時的に貯蔵した後、配送先の港に移動し、充填手段15により、バージタンク12から、地上に待機する輸送トラック上に配置されたコンテナに、直接低温液化ガスを移送することで、受け入れ設備の無い配送先でも容易に低温液化ガスを配送することを可能とする設備である。
また実施形態による浮体式低温液化ガス充填設備10によれば、移送先のコンテナが複数ある場合でも、低温液化ガス分配ユニット20を使用して、同時に複数のコンテナに低温液化ガスを充填するため、短時間で効率的に低温液化ガスを配送することが可能である。
The floating low-temperature liquefied gas filling equipment 10 according to the embodiment of the present invention transfers the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank 12 and temporarily stores it, then moves to the delivery destination port and fills 15 Thus, by transferring the low-temperature liquefied gas directly from the barge tank 12 to the container placed on the transportation truck waiting on the ground, it is possible to easily deliver the low-temperature liquefied gas even to a delivery destination without receiving facilities. It is equipment to do.
Moreover, according to the floating-type low-temperature liquefied gas filling equipment 10 according to the embodiment, even when there are a plurality of destination containers, the low-temperature liquefied gas distribution unit 20 is used to simultaneously fill the plurality of containers with the low-temperature liquefied gas. It is possible to deliver low-temperature liquefied gas efficiently in a short time.

図1(a)は、液化ガス供給設備から地上のコンテナまで低温液化ガスを配送する一連の配送フローの内で、海上にて液化ガス供給設備1から、浮体式低温液化ガス充填設備10のバージタンク12に、低温液化ガスを移送する段階を示し、図1(b)は、低温液化ガスを一時貯蔵する浮体式低温液化ガス充填設備10を、配送先まで移動する段階を示し、図1(c)は、バージタンク12に貯蔵した低温液化ガスを、地上に待機する輸送トラック上に配置されたコンテナに充填する段階を示す。   FIG. 1A shows a barge of a floating low temperature liquefied gas filling facility 10 from a liquefied gas supply facility 1 at sea in a series of delivery flows for delivering a low temperature liquefied gas from a liquefied gas supply facility to a container on the ground. FIG. 1B shows the stage of transferring the low-temperature liquefied gas to the tank 12, and FIG. 1B shows the stage of moving the floating low-temperature liquefied gas filling equipment 10 that temporarily stores the low-temperature liquefied gas to the delivery destination. c) shows the step of filling the cryogenic liquefied gas stored in the barge tank 12 into a container arranged on a transport truck waiting on the ground.

図1(a)を参照すると、浮体式低温液化ガス充填設備10は、海上に待機する液化ガス供給設備1に横付けして係留され、液化ガス供給設備1の低温液化ガス貯蔵タンクと、浮体式低温液化ガス充填設備10のバージタンク12とが、ホース13により接続される。
実施形態では、低温液化ガスは液化天然ガス(LNG)であり、液化ガス供給設備1は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)である。海上では波があるため、浮体式低温液化ガス充填設備10が液化ガス供給設備1に横付けして係留する際、直接衝突しないように、ゴムなどの緩衝部を備える緩衝体18を挟んで横付けする。浮体式低温液化ガス充填設備10の側面に緩衝部を備える場合は、別の緩衝要素としての緩衝体18を用意しなくてもよい。図1(a)に示す緩衝体18はエアーフェンダーであり、円筒状の本体周辺に複数のタイヤ状のゴムを備えた形状に示すが、係留の際に直接衝突しないようにするものであれば、形状や材質はどのようなものでも構わない。
Referring to FIG. 1 (a), a floating low temperature liquefied gas filling facility 10 is moored side by side with a liquefied gas supply facility 1 waiting on the sea, a low temperature liquefied gas storage tank of the liquefied gas supply facility 1, and a floating type A barge tank 12 of the low-temperature liquefied gas filling facility 10 is connected by a hose 13.
In the embodiment, the low-temperature liquefied gas is liquefied natural gas (LNG), and the liquefied gas supply facility 1 is a liquefied natural gas ship or a floating liquefied natural gas storage regasification facility (FSRU). Since there is a wave at sea, when the floating low temperature liquefied gas filling facility 10 is moored by laying on the liquefied gas supply facility 1, it is laid across the buffer body 18 having a buffer portion such as rubber so as not to collide directly. . In the case where a buffer portion is provided on the side surface of the floating body type low-temperature liquefied gas filling facility 10, the buffer body 18 as another buffer element may not be prepared. The shock absorber 18 shown in FIG. 1 (a) is an air fender and is shown in a shape provided with a plurality of tire-like rubbers around the cylindrical main body, as long as it does not collide directly during mooring. Any shape or material may be used.

実施形態では、液化ガス供給設備1は海中から突き出している係留策や海中桟橋、港湾桟橋等の係留手段に係留された状態で待機し、浮体式低温液化ガス充填設備10が液化ガス供給設備1と1箇所または複数箇所の配送先との間を行き来して低温液化ガスを配送する。そのため緩衝体18は常設設備として浮体式低温液化ガス充填設備10を係留する場所に設置する。こうすることで、液化ガス供給設備1への浮体式低温液化ガス充填設備10の係留を速やかに行うことができる。液化ガス供給設備1への浮体式低温液化ガス充填設備10の係留は、係船策19を使って液化ガス供給設備1と浮体式低温液化ガス充填設備10とが位置ずれしないように着実に行う。   In the embodiment, the liquefied gas supply facility 1 waits in a state where the liquefied gas supply facility 1 is anchored to a mooring means protruding from the sea or a mooring means such as an underwater pier or a harbor pier, and the floating low-temperature liquefied gas filling facility 10 is The low-temperature liquefied gas is delivered to and from one or a plurality of delivery destinations. Therefore, the buffer 18 is installed as a permanent installation at a place where the floating low temperature liquefied gas filling facility 10 is moored. By so doing, the floating low temperature liquefied gas filling facility 10 can be quickly moored to the liquefied gas supply facility 1. Mooring of the floating low-temperature liquefied gas filling equipment 10 to the liquefied gas supply equipment 1 is steadily performed using the mooring measure 19 so that the liquefied gas supply equipment 1 and the floating low-temperature liquefied gas filling equipment 10 are not displaced.

液化天然ガスは常圧で液相を保つには−162℃以下にする必要があり、ホース13はフレキシブルホースを使用する。液化ガス供給設備1は非常に大型で、貯蔵タンクから低温液化ガスを排出する排出口は海面から高い位置にあり、バージタンク12の高さとの高低差が大きいため、ホース13の接続には浮体式低温液化ガス充填設備10に備えるクレーン14を使用する。このように浮体式低温液化ガス充填設備10側にクレーン14を備えることにより、液化ガス供給設備1には移送ホースを接続するための特別なクレーン14を設置する必要がなく、様々な液化ガス供給設備1からの受け入れが可能となる。クレーン14は、ホース13又はホース13先端に接続する低温液化ガス分配ユニット20を吊り下げるためのものであるので、吊り下げる重量は限られており、重量物を吊り下げる大型のものは必要ないが、ホース13を高く持ち上げる必要があることから、高所に届く高背のものが望ましく、伸縮式のクレーンでもよい。   In order to maintain the liquid phase at normal pressure, the liquefied natural gas needs to be −162 ° C. or lower, and the hose 13 uses a flexible hose. Since the liquefied gas supply facility 1 is very large, the discharge port for discharging the low-temperature liquefied gas from the storage tank is located at a high position from the sea surface, and the height difference from the height of the barge tank 12 is large. A crane 14 provided in the low-temperature liquefied gas filling facility 10 is used. Thus, by providing the crane 14 on the floating low temperature liquefied gas filling equipment 10 side, it is not necessary to install a special crane 14 for connecting the transfer hose to the liquefied gas supply equipment 1, and various liquefied gas supplies are provided. Acceptance from the facility 1 is possible. Since the crane 14 is for suspending the hose 13 or the cryogenic liquefied gas distribution unit 20 connected to the tip of the hose 13, the weight to be hung is limited, and a large-sized one that suspends heavy objects is not necessary. Since the hose 13 needs to be lifted high, a high-profile one that reaches a high place is desirable, and an extendable crane may be used.

ホース13が海面に接触すると海水からの入熱により液化天然ガスの温度を上げてしまう恐れがあるため、クレーン14はホース13が海面に垂れ下がらないように所定の高さに吊り下げて保持する。
さらに実施形態では、浮体式低温液化ガス充填設備10はホース13を垂れ下がりにくくするように、所定の高さでホース13を下から支持するホース支持体16を備える。
When the hose 13 comes into contact with the sea surface, the temperature of the liquefied natural gas may be increased due to heat input from the sea water. Therefore, the crane 14 is suspended and held at a predetermined height so that the hose 13 does not hang down on the sea surface. .
Furthermore, in the embodiment, the floating body type low-temperature liquefied gas filling equipment 10 includes a hose support 16 that supports the hose 13 from below at a predetermined height so that the hose 13 is unlikely to hang down.

バージタンク12は、主に受け入れ設備の無い小さな港などへの低温液化ガスの配送を行うために、容量としては必要以上に大きくしないことが望ましい。実施形態では例えば輸送トラック上のコンテナ4台分相当として直径3m、長さ20m程度の大きさを有する。しかし大きさはこれに限らず、低温液化ガスの配送を必要とする地域の地形や設備状況、受け入れる輸送トラックの台数や交通事情などを考慮して決定すればよく、上記より大きくても小さくても構わない。   It is desirable that the barge tank 12 is not larger than necessary in order to deliver the low-temperature liquefied gas mainly to a small port without receiving facilities. In the embodiment, for example, it has a size of about 3 m in diameter and about 20 m in length corresponding to four containers on a transport truck. However, the size is not limited to this, and may be determined in consideration of the topography and facilities in the area where low-temperature liquefied gas delivery is required, the number of transport trucks to be accepted, and traffic conditions. It doesn't matter.

図1(b)を参照すると、低温液化ガスを貯蔵した浮体式低温液化ガス充填設備10は、受け入れ先の港に向けて海上移動する。図1(b)では浮体本体11はバージ船であり、自身がエンジン等の航行のための動力を備えていないため、タグボート30に牽引ロープ31を介して連結され曳航されるように示すが、浮体本体11にエンジンを搭載して自力で航行するようにしてもよい。   Referring to FIG. 1 (b), the floating cryogenic liquefied gas filling facility 10 storing the cryogenic liquefied gas moves on the sea toward the receiving port. In FIG. 1 (b), the floating body 11 is a barge ship and does not have power for navigation such as an engine, so that it is connected to the tugboat 30 via a tow rope 31 and towed. An engine may be mounted on the floating body 11 to sail by itself.

図1(c)を参照すると、浮体式低温液化ガス充填設備10は輸送先の港に接岸すると、バージタンク12と地上に待機する輸送トラック40の上に配置されたコンテナ41とがホース13で接続され、充填手段15によりバージタンク12内の低温液化ガスがコンテナ41内に充填される。   Referring to FIG. 1 (c), when the floating cryogenic liquefied gas filling facility 10 contacts the port of the transport destination, the hose 13 connects the barge tank 12 and the container 41 disposed on the transport truck 40 waiting on the ground. The container 41 is filled with the low-temperature liquefied gas in the barge tank 12 by the filling means 15.

充填手段15は加圧蒸発器又はポンプであり、加圧蒸発器の場合は、バージタンク12内の低温液化ガスの一部を気化させてからバージタンク12内に戻し、バージタンク12内の圧力を上昇させることにより低温液化ガスを送り出す。ポンプの場合は直接低温液化ガスを増圧するので、バージタンク12からコンテナ41への流路の間に入れる必要があり、ホース13はポンプとコンテナ41との間を繋ぐように接続される。
低温液化ガスを送出できれば、充填手段15は加圧蒸発器でもポンプでも構わないが、海上では波で揺れることもあり、安定して低温液化ガスを加圧できる加圧蒸発器の方が好ましい。
The filling means 15 is a pressurized evaporator or a pump. In the case of the pressurized evaporator, a part of the low-temperature liquefied gas in the barge tank 12 is vaporized and then returned to the barge tank 12, and the pressure in the barge tank 12 is reached. The low-temperature liquefied gas is sent out by raising. In the case of a pump, the pressure of the low-temperature liquefied gas is increased directly, so it is necessary to put it between the flow path from the barge tank 12 to the container 41, and the hose 13 is connected so as to connect the pump and the container 41.
As long as the low-temperature liquefied gas can be delivered, the filling means 15 may be a pressurized evaporator or a pump. However, a pressurized evaporator that can stably pressurize the low-temperature liquefied gas may be preferable because it may be shaken by waves at sea.

受け入れ側のコンテナ41が1台のみの場合、ホース13はコンテナ41側の端部をそのままコンテナ41の注入口に直結するが、受け入れ側のコンテナ41が複数の場合、ホース13の端部には低温液化ガス分配ユニット20が接続される。低温液化ガス分配ユニット20は、上流側となるホース13につながる低温液化ガスの流入口は1つであるが、複数の排出口から排出されるように低温液化ガス分配ユニット20内で低温液化ガスの流路は複数に分岐する。   When there is only one container 41 on the receiving side, the hose 13 directly connects the end portion on the container 41 side directly to the inlet of the container 41, but when there are a plurality of receiving side containers 41, A cryogenic liquefied gas distribution unit 20 is connected. The low-temperature liquefied gas distribution unit 20 has one low-temperature liquefied gas inlet connected to the hose 13 on the upstream side, but the low-temperature liquefied gas distribution unit 20 is discharged from a plurality of discharge ports in the low-temperature liquefied gas distribution unit 20. The flow path branches into a plurality.

また低温液化ガス分配ユニット20には、それぞれの排出口の出口の開閉を選択的に行う開閉弁を備え、開閉弁の先にはそれぞれの排出口と各コンテナ41とを接続する注入ホース22が接続される。そこで複数の排出口の内、同時充填を行うコンテナ41に接続された排出口の開閉弁を選択して開状態にすることにより、複数台のコンテナ41への充填を同時に行うことが可能となる。   The low-temperature liquefied gas distribution unit 20 includes an on-off valve that selectively opens and closes the outlet of each outlet, and an injection hose 22 that connects each outlet and each container 41 is provided at the end of the on-off valve. Connected. Therefore, by selecting the open / close valve of the discharge port connected to the container 41 that performs simultaneous filling among the plurality of discharge ports and opening it, it becomes possible to fill the plurality of containers 41 simultaneously. .

一般的な大きさの低温液化ガス用のコンテナ41への低温液化ガスの充填は1台当たり1時間前後を要する。例えば4台のコンテナ41に低温液化ガスを充填する場合、従来技術では一度に1台しか充填できないため4時間以上を要する。しかし低温液化ガス分配ユニット20を使用することによって、4台のコンテナ41でも同時充填で略1時間で充填を終了することが可能となる。   The filling of the cryogenic liquefied gas into the container 41 for a cryogenic liquefied gas having a general size requires about one hour per unit. For example, when four containers 41 are filled with a low-temperature liquefied gas, it takes four hours or more because only one container can be filled at a time in the prior art. However, the use of the low-temperature liquefied gas distribution unit 20 enables the four containers 41 to be filled in approximately one hour by simultaneous filling.

バージタンク12からコンテナ41への低温液化ガスの充填の際も、両者を接続するホース13はクレーン14により吊り下げられ、所定の高さに保持される。低温液化ガス分配ユニット20を接続する場合は、図1(c)に示すように低温液化ガス分配ユニット20をクレーン14で吊り下げることで、地上に注入ホース22が這回されることがなくなり、通行の邪魔にならないので作業性の低下を防ぐことができる。   Even when the container 41 is filled with the low-temperature liquefied gas from the barge tank 12, the hose 13 connecting the two is suspended by the crane 14 and held at a predetermined height. When connecting the low-temperature liquefied gas distribution unit 20, the injection hose 22 is not wound on the ground by suspending the low-temperature liquefied gas distribution unit 20 with the crane 14 as shown in FIG. Since it does not interfere with traffic, workability can be prevented from deteriorating.

実施形態では、浮体式低温液化ガス充填設備10はホース13を垂れ下がりにくくするように、所定の高さでホース13を下から支持するホース支持体17を備える。図1(c)では浮体本体11の一方の縁にホース支持体16、ホース支持体16と反対側の縁にホース支持体17を有するように記載しているが、ホース13の接続方向をいずれか一方に固定する場合、ホース支持体(16、17)はいずれか一つに統一してもよく、この場合、統一したホース支持体はホース13を支持する支持高さが可変となるように構成するのが好ましい。   In the embodiment, the floating cryogenic liquefied gas filling facility 10 includes a hose support 17 that supports the hose 13 from below at a predetermined height so that the hose 13 is unlikely to hang down. In FIG. 1 (c), the hose support 16 is described as having a hose support 16 at one edge of the floating body 11 and the hose support 17 at the edge opposite to the hose support 16. When fixing to either one, the hose support (16, 17) may be unified, and in this case, the unified hose support is such that the support height for supporting the hose 13 is variable. It is preferable to configure.

図2は、本発明の実施形態による浮体式低温液化ガス充填設備による地上のコンテナに低温液化ガスを移送する方法を平面的に示す概略的図である。
図2は、地上に停車中の4台の輸送トラック40に同時に低温液化ガスを充填する状態を示す。輸送トラック40は台車となるトレーラの上にコンテナ41を設置し、これを牽引車42で牽引するトレーラ式のものを例示している。
FIG. 2 is a schematic diagram illustrating a method for transferring a low-temperature liquefied gas to a ground container by a floating-type low-temperature liquefied gas filling facility according to an embodiment of the present invention.
FIG. 2 shows a state in which the low-temperature liquefied gas is simultaneously filled in the four transport trucks 40 stopped on the ground. The transport truck 40 exemplifies a trailer type in which a container 41 is installed on a trailer serving as a carriage and is pulled by a tow vehicle 42.

低温液化ガス分配ユニット20は、低温液化ガス分配器21と注入ホース22とを含む。低温液化ガス分配器21はホース13に接続される低温液化ガスの流入口は1つであるのに対し、排出口は4つであり、これにより略ホームベース型の筐体を有する。
低温液化ガス分配器21はクレーン14により4台の輸送トラック40の後方で所定の高さに吊るされ、4つの排出口に接続された4本の注入ホース22がそれぞれのコンテナ41に連結される。
The low temperature liquefied gas distribution unit 20 includes a low temperature liquefied gas distributor 21 and an injection hose 22. The low-temperature liquefied gas distributor 21 has one inflow port for the low-temperature liquefied gas connected to the hose 13, but has four outlets, thereby having a substantially home base type housing.
The cryogenic liquefied gas distributor 21 is suspended at a predetermined height behind the four transport trucks 40 by the crane 14, and the four injection hoses 22 connected to the four discharge ports are connected to the respective containers 41. .

実施形態において、例えば合計7台分のコンテナ41に低温液化ガスを充填する場合、1回目は図2に示すように4台のコンテナ41を接続し、同時充填を行う。2回目の充填では3台のコンテナ41を接続するが、図3を参照して後述するように、低温液化ガス分配ユニット20は排出口毎に開閉弁を備えるため、コンテナ41を接続しない残りの1つの排出口の開閉弁のみを閉じておくことで、選択的に3台のコンテナ41への同時充填が可能である。   In the embodiment, for example, when filling low temperature liquefied gas into a total of seven containers 41, first, four containers 41 are connected as shown in FIG. In the second filling, three containers 41 are connected. As will be described later with reference to FIG. 3, the low-temperature liquefied gas distribution unit 20 includes an opening / closing valve for each discharge port. By closing only the opening / closing valve of one discharge port, it is possible to selectively fill the three containers 41 simultaneously.

コンテナ41に低温液化ガスを充填した輸送トラック40は、そのまま次の目的地まで直接陸送することもできるし、最寄りの駅でコンテナ41を貨車に移し替えて鉄道輸送にて輸送することや、最寄りの貨物港でコンテナ貨物船により海上輸送することもでき、受け入れ地の交通状況に合わせて様々な輸送形態を展開することが可能である。   The transport truck 40 in which the container 41 is filled with the low-temperature liquefied gas can be directly transported to the next destination as it is, or the container 41 can be transferred to a freight car at the nearest station and transported by rail transport. It is also possible to carry out marine transportation by container cargo ship at the cargo port of the city, and it is possible to develop various forms of transportation according to the traffic situation of the receiving place.

図3は、本発明の実施形態による低温液化ガス分配ユニットの構造を概略的に示す図である。
低温液化ガス分配ユニット20は、ホース13の一端に着脱可能に取り付けられるものであるため、低温液化ガス分配器21の低温液化ガスの流入口にはホース13との接続用の端部を備える。図3ではホース13の端部に備えるフランジに合わせ、流入口にもボルトナットで固定できるようにフランジを備える構成を示すが、着脱可能であればこの構成に限ることはなく、例えば、ねじによる接続の場合は、ホース13端部が備える雌ねじに合わせた雄ねじを備えるというように、ホース13の端部形状に合わせた接続用の端部を備える。
FIG. 3 is a diagram schematically illustrating the structure of a cryogenic liquefied gas distribution unit according to an embodiment of the present invention.
Since the low-temperature liquefied gas distribution unit 20 is detachably attached to one end of the hose 13, the low-temperature liquefied gas distributor 21 has an end for connection to the hose 13 at the low-temperature liquefied gas inlet. FIG. 3 shows a configuration including a flange so that it can be fixed to the inflow port with a bolt and nut in accordance with the flange provided at the end of the hose 13. However, the configuration is not limited to this configuration as long as it is detachable. In the case of connection, an end portion for connection that matches the shape of the end portion of the hose 13 is provided so that a male screw that matches the internal screw provided at the end portion of the hose 13 is provided.

また低温液化ガス分配器21は複数に分岐する流路を備えた流路構造を有する。図3に示す低温液化ガス分配器21は分岐数が4の場合であり、4つの排出口を有する。4つの排出口にはそれぞれ開閉弁23を備えており、どの開閉弁23を開くかにより低温液化ガスを排出する排出口を選択することができる。   The low-temperature liquefied gas distributor 21 has a flow path structure including a flow path that branches into a plurality. The low-temperature liquefied gas distributor 21 shown in FIG. 3 has four branches, and has four outlets. Each of the four discharge ports is provided with an opening / closing valve 23, and the discharge port for discharging the low-temperature liquefied gas can be selected depending on which opening / closing valve 23 is opened.

開閉弁23は手動でも電動でもよいが、電動の場合は浮体式低温液化ガス充填設備10が備える蓄電池等の給電手段から、ホース13に沿わせて配線する給電線を介して開閉弁23に電源を供給する。また電動の場合は無線又は有線で開閉弁23の開閉制御を行うように構成する。   The on-off valve 23 may be manually operated or electrically operated. However, in the case of electric operation, power is supplied to the on-off valve 23 from a power supply means such as a storage battery provided in the floating cryogenic liquefied gas filling facility 10 via a power supply line wired along the hose 13. Supply. In the case of electric operation, the opening / closing control of the opening / closing valve 23 is performed wirelessly or by wire.

一実施形態では、それぞれの開閉弁23の近傍又はそれぞれの開閉弁23との対応が分かる位置に、開閉弁23の開閉状態が目視で確認できるよう表示ランプを設ける。ランプの点灯か消灯かの区別により、或は表示するランプの色を変えることにより開状態か閉状態かを表示する。これによりコンテナ41に接続しない排出口の開閉弁23が誤って開いていても、容易に確認ができ、充填開始前に閉状態に修正することができる。   In one embodiment, an indicator lamp is provided in the vicinity of each on-off valve 23 or at a position where the correspondence with each on-off valve 23 is known so that the open / close state of the on-off valve 23 can be visually confirmed. Depending on whether the lamp is turned on or off, or by changing the color of the lamp to be displayed, whether the lamp is open or closed is displayed. Thereby, even if the opening / closing valve 23 of the discharge port not connected to the container 41 is opened by mistake, it can be easily confirmed and can be corrected to the closed state before the filling is started.

それぞれの開閉弁23の下流側にはさらに流量検出手段24を備える。流路の形状や開閉弁23の選択の仕方によって、それぞれの排出口からの低温液化ガスの排出流量が異なることが生じ得る。流出量が異なると同時充填してもコンテナ41間で充填時間が異なるため作業効率の低下につながりかねない。そこで一実施形態では、流量検出手段24によりそれぞれの排出口からの低温液化ガスの排出流量を検出し、その結果に基づきそれぞれの排出口からの低温液化ガスの排出流量が等しくなるように個別に開閉弁23の弁開度を調整する。
低温液化ガスの排出流量の調整は、開閉弁23とは異なる流量調整手段を設けてもよく、その場合は流量検出手段24により検出した排出流量に基づき流量調整手段により低温液化ガスの排出流量を調整する。
A flow rate detecting means 24 is further provided on the downstream side of each on-off valve 23. Depending on the shape of the flow path and how the on / off valve 23 is selected, the discharge flow rate of the low-temperature liquefied gas from the respective discharge ports may vary. If the amount of outflow is different, even if it is filled at the same time, the filling time differs between the containers 41, which may lead to a reduction in work efficiency. Therefore, in one embodiment, the flow rate detection means 24 detects the discharge flow rate of the low-temperature liquefied gas from each discharge port, and individually, based on the result, the discharge flow rate of the low-temperature liquefied gas from each discharge port becomes equal. The valve opening degree of the on-off valve 23 is adjusted.
The adjustment of the discharge flow rate of the low temperature liquefied gas may be provided with a flow rate adjusting means different from the on-off valve 23. In that case, the discharge flow rate of the low temperature liquefied gas is adjusted by the flow rate adjusting means based on the discharge flow rate detected by the flow rate detecting means 24. adjust.

注入ホース22はホース13と同様、フレキシブルホースである。注入ホース22はホース13のように頻繁に着脱を行う必要はないが、劣化した時の交換などもあるので、端部をボルトナットで固定できるようフランジ形状にするなどして低温液化ガス分配器21に着脱可能に取り付ける。   Like the hose 13, the injection hose 22 is a flexible hose. The injection hose 22 does not need to be attached and detached as often as the hose 13, but it may be replaced when it deteriorates, so a low temperature liquefied gas distributor such as a flange shape that can be fixed with bolts and nuts at the end is used. Attached to 21 in a detachable manner.

低温液化ガス分配器21の上面にはフック25を備え、低温液化ガスの充填を行う際、図1(c)や図2のようにクレーン14によりフック25を吊り上げ、作業性の良い高さに保持することで充填作業を行い易い配置とすることができる。また、充填完了後にホース13を離脱する際、ホース内にLNGが残留しないよう、高低差を調整して完全にLNGがバージタンク12に移送されるようにする機能も有する。   A hook 25 is provided on the upper surface of the low-temperature liquefied gas distributor 21, and when filling with the low-temperature liquefied gas, the hook 25 is lifted by the crane 14 as shown in FIG. It can be set as the arrangement | positioning which is easy to perform filling operation by hold | maintaining. Further, when the hose 13 is detached after the filling is completed, the height difference is adjusted so that the LNG is completely transferred to the barge tank 12 so that the LNG does not remain in the hose.

図3では4つの排出口を有する低温液化ガス分配ユニット20を例示したが、排出口の数は4つに限らない。4つより多くてもよいし少なくてもよい。また図3では排出口を横1列に配置した構造を例示したが、実施形態により複数の排出口を流出特性が均等となるように同心円状に等間隔に配置してもよい。このとき排出口の方向を流入口から斜め方向に設置する場合は、低温液化ガス分配器21はロート状の形状とし、排出口の方向を流入口から放射方向に配置する場合は、低温液化ガス分配器21は円盤状の形状とする。   Although the low-temperature liquefied gas distribution unit 20 having four discharge ports is illustrated in FIG. 3, the number of discharge ports is not limited to four. There may be more or less than four. Moreover, although the structure which has arrange | positioned the discharge port in 1 horizontal row was illustrated in FIG. 3, you may arrange | position a several discharge port at equal intervals so that an outflow characteristic may become equal by embodiment. At this time, when the direction of the discharge port is installed obliquely from the inlet, the low-temperature liquefied gas distributor 21 has a funnel shape, and when the direction of the discharge port is arranged radially from the inlet, the low-temperature liquefied gas is provided. The distributor 21 has a disk shape.

図4は、本発明の実施形態による低温液化ガス配送方法を説明するためのフローチャートである。
図4を参照すると、浮体式低温液化ガス充填設備10への低温液化ガスの受け入れ段階として、液化ガス供給設備1から浮体式低温液化ガス充填設備10のバージタンク12にホース13を介して低温液化ガスを移送する(段階S400〜段階S420)。
FIG. 4 is a flowchart for explaining a low-temperature liquefied gas delivery method according to an embodiment of the present invention.
Referring to FIG. 4, as a stage of accepting the low-temperature liquefied gas to the floating type low-temperature liquefied gas filling facility 10, the low-temperature liquefaction from the liquefied gas supply facility 1 to the barge tank 12 of the floating-type low-temperature liquefied gas filling facility 10 Gas is transferred (step S400 to step S420).

まず段階S400にて、液化ガス供給設備1に緩衝体18を挟んで浮体式低温液化ガス充填設備10を係留する。実施形態では緩衝体18は液化ガス供給設備1に浮体式低温液化ガス充填設備10の係留位置に合わせて常設する。このため浮体式低温液化ガス充填設備10への低温液化ガスの受け入れ毎に緩衝体18を準備する必要がない。浮体式低温液化ガス充填設備10の係留は液化ガス供給設備1との間を係船策19で前後複数箇所を繋ぐことで着実に行うことができる。   First, in step S400, the floating-type low-temperature liquefied gas filling equipment 10 is moored with the buffer 18 sandwiched between the liquefied gas supply equipment 1. In the embodiment, the buffer 18 is permanently installed in the liquefied gas supply facility 1 in accordance with the mooring position of the floating low temperature liquefied gas filling facility 10. For this reason, it is not necessary to prepare the buffer body 18 every time the low temperature liquefied gas is received in the floating type low temperature liquefied gas filling equipment 10. Mooring of the floating body type low-temperature liquefied gas filling equipment 10 can be steadily performed by connecting a plurality of places before and after the liquefied gas supply equipment 1 with a mooring measure 19.

次いで段階S405にて、液化ガス供給設備1と浮体式低温液化ガス充填設備10のホース13を接続する。このとき浮体式低温液化ガス充填設備10の備えるクレーン14を使ってホース13を持ち上げて接続するとともに低温液化ガス移送中もホース13を所定の高さに保持することにより、低温液化ガス払い出し用のクレーン14やホース13を持たない大型の船舶からでも直接に低温液化ガスを受け入れることが可能となる。   Next, in step S405, the liquefied gas supply facility 1 and the hose 13 of the floating low temperature liquefied gas filling facility 10 are connected. At this time, the crane 14 provided in the floating cryogenic liquefied gas filling facility 10 is used to lift and connect the hose 13 and hold the hose 13 at a predetermined height during the low temperature liquefied gas transfer, thereby delivering the low temperature liquefied gas. It becomes possible to receive the low-temperature liquefied gas directly even from a large ship that does not have the crane 14 or the hose 13.

段階S410にて液化ガス供給設備1から浮体式低温液化ガス充填設備10のバージタンク12へ低温液化ガスの移送を開始する。段階S415にて必要量の低温液化ガスの移送を行い低温液化ガスの移送を完了すると、段階S420にて液化ガス供給設備1から浮体式低温液化ガス充填設備10のホース13を切り離す。切り離したホース13はクレーン14を使って浮体式低温液化ガス充填設備10に回収し、最後に係船策19を外して低温液化ガスの受け入れ段階を終了する。   In step S410, the transfer of the low-temperature liquefied gas from the liquefied gas supply facility 1 to the barge tank 12 of the floating low-temperature liquefied gas filling facility 10 is started. When the necessary amount of the low-temperature liquefied gas is transferred in step S415 and the transfer of the low-temperature liquefied gas is completed, the hose 13 of the floating cryogenic liquefied gas filling facility 10 is disconnected from the liquefied gas supply facility 1 in step S420. The separated hose 13 is collected in the floating cryogenic liquefied gas filling facility 10 using the crane 14, and finally the mooring measure 19 is removed to complete the cryogenic liquefied gas receiving stage.

次に輸送段階として浮体式低温液化ガス充填設備10を低温液化ガスの引き渡し場所である港まで移動させる(段階S425、段階S430)。
段階S425で浮体式低温液化ガス充填設備10を配送先である港湾内の輸送トラック40の待機位置に向かって移動する。実施形態では浮体式低温液化ガス充填設備10は、自力航行のための動力手段を持たず、タグボート30により曳航されて移動する。そのため牽引ロープ31を掛ける牽引ロープフックを前後に備える。これにより複数の浮体式低温液化ガス充填設備10を牽引ロープ31で縦1列に繋ぎ、先頭をタグボート30で牽引することで、一度に纏めて複数の浮体式低温液化ガス充填設備10を移動させることが可能となる。
Next, as a transporting stage, the floating cryogenic liquefied gas filling facility 10 is moved to a port where the cryogenic liquefied gas is delivered (steps S425 and S430).
In step S425, the floating cryogenic liquefied gas filling facility 10 is moved toward the standby position of the transport truck 40 in the harbor as a delivery destination. In the embodiment, the floating cryogenic liquefied gas filling facility 10 does not have power means for self-navigation and is towed and moved by the tugboat 30. Therefore, a tow rope hook for hanging the tow rope 31 is provided at the front and rear. As a result, the plurality of floating cryogenic liquefied gas filling facilities 10 are connected in a vertical row by the tow rope 31 and the top is towed by the tug boat 30 to move the plurality of floating cryogenic liquefied gas filling facilities 10 at once. It becomes possible.

また他の実施形態では、浮体式低温液化ガス充填設備10は、自力航行のための動力手段を備え、配送先にはタグボート30を使用することなく自力で移動する。
タグボート30により曳航されて移動する場合も、自力で移送する場合も配送先の港に到着すると浮体式低温液化ガス充填設備10は港湾内の輸送トラック40の待機位置に接岸する(段階S430)。
In another embodiment, the floating cryogenic liquefied gas filling facility 10 includes power means for self-navigation and moves by itself without using the tug boat 30 as a delivery destination.
Whether the ship is towed by the tugboat 30 or moved by itself, upon arrival at the delivery destination port, the floating cryogenic liquefied gas filling facility 10 contacts the standby position of the transport truck 40 in the port (step S430).

この後充填手段15によりバージタンク12からホース13を介して地上の輸送トラック40上に配置されたコンテナ41に直接低温液化ガスを充填する充填段階(段階S435〜段階S470)に移行する。
始めに段階S435にて複数のコンテナ41に同時に充填するか否かを判断し、同時に充填するコンテナ41が複数の場合、段階S440にてホース13の一端に低温液化ガス分配ユニット20を接続する。
Thereafter, the filling means 15 proceeds from the barge tank 12 via the hose 13 to the filling stage (step S435 to step S470) in which the container 41 arranged on the ground transportation truck 40 is directly filled with the low-temperature liquefied gas.
First, in step S435, it is determined whether or not a plurality of containers 41 are filled at the same time. If there are a plurality of containers 41 filled simultaneously, the cryogenic liquefied gas distribution unit 20 is connected to one end of the hose 13 in step S440.

次いで段階S445にて、低温液化ガスを同時充填するコンテナ41の数に合わせ、低温液化ガス分配ユニット20の複数の注入ホース22の内、必要数を港湾内トラック上のコンテナ41に接続する。低温液化ガス分配ユニット20は複数の排出口を有するが、排出口毎に開閉弁23で開閉を切り替えられるので、同時充填するコンテナ41の数が、低温液化ガス分配ユニット20の排出口の数より少なくても、使用しない排出口の開閉弁23を閉じておくことができ、接続したコンテナ41の数だけの同時充填が可能となる。
段階S455にて、充填を行うコンテナ41に合わせ、低温液化ガス分配ユニット20の開閉弁23を開口する。
Next, in step S445, the required number of the plurality of injection hoses 22 of the low-temperature liquefied gas distribution unit 20 is connected to the containers 41 on the truck in the harbor in accordance with the number of containers 41 that are simultaneously filled with the low-temperature liquefied gas. Although the low-temperature liquefied gas distribution unit 20 has a plurality of outlets, the opening and closing valve 23 can be switched for each outlet, so that the number of containers 41 to be filled simultaneously is greater than the number of outlets of the low-temperature liquefied gas distribution unit 20. At least, the on-off valve 23 of the discharge port that is not used can be closed, and simultaneous filling of the number of connected containers 41 is possible.
In step S455, the on-off valve 23 of the low-temperature liquefied gas distribution unit 20 is opened in accordance with the container 41 to be filled.

一実施形態では注入ホース22のコンテナ41への接続側の端部に、コンテナ41との接続を検出するセンサ又はコンテナ41との接続が行われると作動する押し込みスイッチなどのスイッチを設け、コンテナ41への接続が行われないと当該注入ホース22が接続される排出口の開閉弁23の開動作が行われないように構成する。これによりコンテナ41に接続していない注入ホース22に誤って低温液化ガスを排出するのを防止することが可能である。   In one embodiment, the end of the injection hose 22 on the connection side to the container 41 is provided with a sensor for detecting the connection with the container 41 or a switch such as a push switch that operates when the connection with the container 41 is performed. If the connection to is not performed, the opening / closing valve 23 of the discharge port to which the injection hose 22 is connected is not opened. Thereby, it is possible to prevent the low temperature liquefied gas from being accidentally discharged to the injection hose 22 not connected to the container 41.

以上の充填の準備が終了すると、段階S460にて浮体式低温液化ガス充填設備10の充填手段15を作動させ、コンテナ41に低温液化ガスを充填する。
輸送トラック40の駐車スペースが狭く同時充填可能なコンテナ41の数が限られる場合や、低温液化ガスの需要量が多く、低温液化ガス分配ユニット20による1回の同時充填でもまだ需要量に満たない場合など、複数回の充填が必要な場合は1回目の充填が終了した時点で一度開閉弁23を閉じ、輸送トラック40を入れ替えて新たなコンテナ41に接続した後、段階S435〜段階S460の充填作業を繰り返す。
When the above preparation for filling is completed, the filling means 15 of the floating low-temperature liquefied gas filling equipment 10 is operated in step S460 to fill the container 41 with the low-temperature liquefied gas.
When the parking space of the transport truck 40 is narrow and the number of containers 41 that can be filled at the same time is limited, or the amount of low-temperature liquefied gas demand is large, even the single simultaneous filling by the low-temperature liquefied gas distribution unit 20 does not meet the demand amount. When multiple fillings are necessary, such as when the first filling is completed, the on-off valve 23 is closed once, the transportation truck 40 is replaced and connected to a new container 41, and then filling in steps S435 to S460 is performed. Repeat the work.

さらに、流量検出手段24を使用して低温液化ガスの低温液化ガスの排出流量を調整する場合は、段階S460で低温液化ガスの充填を開始した段階で、流量検出手段24によりそれぞれの排出口を流れる低温液化ガスの排出流量を検出し、その結果に基づき開閉弁23若しくは開閉弁23とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整する。これは浮体式低温液化ガス充填設備10に開閉弁23または流量調整手段を遠隔に制御する制御装置を設け、流量検出手段24からの出力を有線又は無線で制御装置に入力し、制御装置からそれぞれの開閉弁23または流量調整手段に入力値に基づく制御信号を有線又は無線で出力することで実現される。   Furthermore, when adjusting the discharge flow rate of the low-temperature liquefied gas of the low-temperature liquefied gas using the flow rate detection means 24, the flow rate detection means 24 opens the respective discharge ports at the stage where charging of the low-temperature liquefied gas is started in step S460. The discharge flow rate of the flowing low-temperature liquefied gas is detected, and the discharge flow rate of the low-temperature liquefied gas is individually adjusted by the flow rate adjusting means provided separately from the opening / closing valve 23 or the opening / closing valve 23 based on the result. This is because the floating type low-temperature liquefied gas filling equipment 10 is provided with a control device for remotely controlling the on-off valve 23 or the flow rate adjusting means, and the output from the flow rate detecting means 24 is input to the control device by wire or wirelessly. This is realized by outputting a control signal based on the input value to the on-off valve 23 or the flow rate adjusting means by wire or wirelessly.

段階S435に戻って充填するコンテナ41が単数の場合、低温液化ガスの分配は必要なくなるため、段階S450にてホース13には低温液化ガス分配ユニット20を接続せずに直接コンテナ41に接続した後、段階S460に移行して浮体式低温液化ガス充填設備10の充填手段15を作動させ、コンテナ41に低温液化ガスを充填する。   If there is only one container 41 to be returned to step S435, distribution of the low-temperature liquefied gas is not necessary. Therefore, after connecting the hose 13 directly to the container 41 without connecting the low-temperature liquefied gas distribution unit 20 to the hose 13 in step S450. Then, the process proceeds to step S460, and the filling means 15 of the floating-type low-temperature liquefied gas filling equipment 10 is operated to fill the container 41 with the low-temperature liquefied gas.

一度バージタンク12に充填した低温液化ガスを、複数の目的地に連続して配送する場合などに、先の配送地でホース13の先端に低温液化ガス分配ユニット20を接続して充填を行うと、次の配送地では予めホース13の先端に低温液化ガス分配ユニット20が接続された状態から作業が始まることが起こり得る。このような状況で単体のコンテナ41に充填する場合は、低温液化ガス分配ユニット20を外してホース13を直接コンテナ41に接続してもよいし、低温液化ガス分配ユニット20を接続したままで1本の注入ホース22を選択的に接続し、接続した注入ホース22につながる開閉弁23を開いて低温液化ガスの充填を行ってもよい。   When the low-temperature liquefied gas once filled in the barge tank 12 is continuously delivered to a plurality of destinations, etc., when the low-temperature liquefied gas distribution unit 20 is connected to the tip of the hose 13 at the previous delivery location, the filling is performed. In the next delivery place, the operation may start from a state in which the cryogenic liquefied gas distribution unit 20 is connected to the tip of the hose 13 in advance. When filling a single container 41 in such a situation, the low-temperature liquefied gas distribution unit 20 may be removed and the hose 13 may be directly connected to the container 41, or the low-temperature liquefied gas distribution unit 20 may be left connected. Alternatively, the injection hose 22 may be selectively connected, and the on-off valve 23 connected to the connected injection hose 22 may be opened to fill the low-temperature liquefied gas.

また、低温液化ガスの配送の状況により、複数のコンテナ41に同時充填して配送することが多い場合、ホース13は、液化ガス供給設備1からの低温液化ガスの受け入れとコンテナ41への充填とで共用とせず、受け入れ専用のホース13−1と、低温液化ガス分配ユニット20を接続したままの充填専用のホース13−2との別構成としてもよい。この場合、図4の段階S435、段階S440、段階S450の作業は不要となる。   Further, if the low-temperature liquefied gas is often filled and delivered to a plurality of containers 41 in many cases, the hose 13 receives the low-temperature liquefied gas from the liquefied gas supply facility 1 and fills the container 41. It is good also as another structure of the hose 13-1 only for reception, and the hose 13-2 only for filling with the low-temperature liquefied gas distribution unit 20 connected, without using for common use. In this case, the operations in steps S435, S440, and S450 in FIG. 4 are not necessary.

段階S465で充填が必要なコンテナ41への低温液化ガスの充填が終了すると、段階S470でコンテナ41に接続するホース13又は注入ホース22の接続を解除して、浮体式低温液化ガス充填設備10に収納する。その後は次の配送先に向かって充填を続けるか、次の配送に備えて液化ガス供給設備1に戻り、上述した低温液化ガスの受け入れ段階からの作業を繰り返す。   When the filling of the low-temperature liquefied gas into the container 41 that needs to be filled is completed in step S465, the connection of the hose 13 or the injection hose 22 connected to the container 41 is released in step S470, and the floating low-temperature liquefied gas filling equipment 10 is provided. Store. Thereafter, filling is continued toward the next delivery destination, or the liquefied gas supply facility 1 is returned to prepare for the next delivery, and the above-described operations from the low-temperature liquefied gas receiving stage are repeated.

尚、空のコンテナ41に低温液化ガスを充填すると、通常コンテナ41内の温度が低温液化ガスの温度まで冷えていないため、コンテナ41内部のメタンガスなどの残留ガスに加え、低温液化ガスの一部がガス化し、充填の初期段階で一時的にコンテナ41内の圧力が上昇する。低温液化ガスの充填が進み、コンテナ41内部の温度が低下してくると、それに伴いコンテナ41内の圧力も低下してくる。   Note that when the empty container 41 is filled with the low-temperature liquefied gas, the temperature in the container 41 is not normally cooled down to the temperature of the low-temperature liquefied gas, so a part of the low-temperature liquefied gas is added to the residual gas such as methane gas inside the container 41. The gas in the container 41 temporarily rises in the initial stage of filling. As the filling of the low-temperature liquefied gas proceeds and the temperature inside the container 41 decreases, the pressure in the container 41 also decreases accordingly.

低温液化ガスの充填に伴い、コンテナ41内のガスを供給側であるバージタンク12に戻すことでコンテナ41内の圧力上昇の影響を抑える充填方法も取り得るが、この方法ではガス化しやすい成分を回収するために、最終的に充填した低温液化ガスの成分構成が変わってしまうことが起こり得る。   As the low temperature liquefied gas is filled, a filling method that suppresses the influence of the pressure increase in the container 41 by returning the gas in the container 41 to the barge tank 12 on the supply side can be taken. In order to recover, the component composition of the low-temperature liquefied gas finally filled may change.

一方、コンテナ41内のガスを冷却し、低温液化ガスに溶かし込めればコンテナ41内の圧力上昇を抑制することも可能となる。この方法によればガス成分をバージタンク12に回収することが無いので、充填する低温液化ガスの成分構成が変化することもない。また、ガス専用の戻りホースを設備する必要がなくなる。   On the other hand, if the gas in the container 41 is cooled and dissolved in the low-temperature liquefied gas, the pressure increase in the container 41 can be suppressed. According to this method, since the gas component is not recovered in the barge tank 12, the component configuration of the low-temperature liquefied gas to be filled does not change. Moreover, it is not necessary to provide a return hose dedicated to gas.

以上、本発明の実施形態について図面を参照しながら詳細に説明したが、本発明は、上述の実施形態に限定されるものではなく、本発明の技術的範囲から逸脱しない範囲内で多様に変更することが可能である。   As mentioned above, although embodiment of this invention was described in detail, referring drawings, this invention is not limited to the above-mentioned embodiment, In the range which does not deviate from the technical scope of this invention, it changes variously. Is possible.

1 液化ガス供給設備
10 浮体式低温液化ガス充填設備
11 浮体本体
12 バージタンク
13 ホース
14 クレーン
15 充填手段
16、17 ホース支持体
18 緩衝体
19 係船策
20 低温液化ガス分配ユニット
21 低温液化ガス分配器
22 注入ホース
23 開閉弁
24 流量検出手段
25 フック
30 タグボート
31 牽引ロープ
40 輸送トラック
41 コンテナ
42 牽引車
DESCRIPTION OF SYMBOLS 1 Liquefied gas supply equipment 10 Floating body type low temperature liquefied gas filling equipment 11 Floating body 12 Barge tank 13 Hose 14 Crane 15 Filling means 16, 17 Hose support 18 Buffer body 19 Mooring measures 20 Low temperature liquefied gas distribution unit 21 Low temperature liquefied gas distributor 22 Injection hose 23 On-off valve 24 Flow rate detection means 25 Hook 30 Tug boat 31 Towing rope 40 Transport truck 41 Container 42 Towing vehicle

Claims (7)

海上から陸上に低温液化ガスを配送する浮体式低温液化ガス充填設備であって、
低温液化ガスを一時的に充填して貯蔵するバージタンクと、
液化ガス供給設備から前記バージタンクに低温液化ガスを移送し、前記バージタンクから地上の輸送トラック上に配置されたコンテナに低温液化ガスを移送するためのホースと、
前記ホースの一端に着脱可能に取り付けられる低温液化ガス分配ユニットと、
低温液化ガス移送中に前記ホースを所定の高さに保持するクレーンと、
低温液化ガスを前記コンテナに充填する充填手段と、を有し、
前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、一端が前記排出口に接続され、他端が前記コンテナの注入口に接続される複数の注入ホースと、前記クレーンによって吊り上げるためのフックと、を備え、
前記低温液化ガス分配ユニットは同時に複数のコンテナに充填する場合に前記充填手段に接続された前記ホースの一端に取り付けられ、前記クレーンによって所定の高さに吊り上げられて使用され、
前記低温液化ガス分配ユニットはロート状又は円盤状の形状であり、前記複数の排出口は流出特性が均等となるよう等間隔に配置され、前記開閉弁の弁開度は、それぞれの排出口からの低温液化ガスの排出流量が等しくなるように調整され、
前記注入ホースはコンテナへの接続側の端部にコンテナとの接続を検出するセンサ又はコンテナとの接続が行われると作動するスイッチを備え、
前記注入ホースが接続される排出口の開閉弁は、前記注入ホースのコンテナへの接続が行われないと開動作が行われないように構成されることを特徴とする浮体式低温液化ガス充填設備。
A floating low-temperature liquefied gas filling facility that delivers low-temperature liquefied gas from the sea to the land,
A barge tank for temporarily filling and storing the low-temperature liquefied gas;
A hose for transferring a low-temperature liquefied gas from a liquefied gas supply facility to the barge tank, and transferring the low-temperature liquefied gas from the barge tank to a container disposed on a ground transportation truck;
A cryogenic liquefied gas distribution unit detachably attached to one end of the hose;
A crane for holding the hose at a predetermined height during low-temperature liquefied gas transfer;
Filling means for filling the container with a low-temperature liquefied gas,
The low-temperature liquefied gas distribution unit selectively selects a low-temperature liquefied gas inlet connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and opening and closing of the respective outlets. An opening / closing valve to be connected to the container, a plurality of injection hoses having one end connected to the discharge port and the other end connected to the injection port of the container, and a hook for lifting by the crane ,
The low-temperature liquefied gas distribution unit is attached to one end of the hose connected to the filling means when simultaneously filling a plurality of containers, and is used by being lifted to a predetermined height by the crane,
The low-temperature liquefied gas distribution unit has a funnel shape or a disk shape, and the plurality of discharge ports are arranged at equal intervals so that the outflow characteristics are uniform. The low-temperature liquefied gas discharge flow rate is adjusted to be equal,
The injection hose includes a sensor that detects connection with the container at the end of the connection side to the container or a switch that operates when connection with the container is performed,
The floating low temperature liquefied gas filling equipment, wherein the opening / closing valve of the discharge port to which the injection hose is connected is configured not to be opened unless the injection hose is connected to the container. .
前記低温液化ガス分配ユニットはそれぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段を備え、検出した低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整可能であることを特徴とする請求項1に記載の浮体式低温液化ガス充填設備。   The low-temperature liquefied gas distribution unit includes flow rate detecting means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each discharge port, and is separate from the on-off valve or the on-off valve based on the detected low-temperature liquefied gas flow rate. The floating low-temperature liquefied gas filling equipment according to claim 1, wherein the discharge flow rate of the low-temperature liquefied gas can be individually adjusted by a flow rate adjusting means provided individually. 温液化ガスは前記充填手段により前記バージタンクから前記ホース、前記低温液化ガス分配ユニットを介して一又は複数の前記コンテナに直接移送されることを特徴とする請求項2に記載の浮体式低温液化ガス充填設備。 The hose low temperature liquefied gas from the barge tank by said filling means, floating low temperature according to claim 2, characterized in that it is transferred directly to the low-temperature liquefied gas distribution one or more of the containers through the unit Liquefied gas filling equipment. 前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることを特徴とする請求項1乃至3のいずれか1項に記載の浮体式低温液化ガス充填設備。   The low-temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply facility is a liquefied natural gas ship or a floating liquefied natural gas storage regasification facility (FSRU), and the filling means is a pressurized evaporator or The floating low-temperature liquefied gas filling facility according to any one of claims 1 to 3, wherein the facility is a pump. 請求項1に記載の浮体式低温液化ガス充填設備を使用した低温液化ガス配送方法であって、
液化ガス供給設備に浮体式低温液化ガス充填設備を係留した後、液化ガス供給設備から浮体式低温液化ガス充填設備のバージタンクにホースを介して低温液化ガスを移送する受け入れ段階と、
浮体式低温液化ガス充填設備を低温液化ガスの引き渡し場所まで移動させる輸送段階と、
充填手段により前記バージタンクから前記ホースを介して地上の輸送トラック上に配置されたコンテナに直接低温液化ガスを充填する充填段階と、を有し、
同時に複数のコンテナに低温液化ガスを充填する場合、前記充填段階の前に前記ホースの排出側の一端に複数の排出口を備える低温液化ガス分配ユニットを接続する接続段階をさらに有することを特徴とする低温液化ガス配送方法。
A low-temperature liquefied gas delivery method using the floating-type low-temperature liquefied gas filling facility according to claim 1,
After suspending the floating low-temperature liquefied gas filling equipment in the liquefied gas supply equipment, and receiving the low-temperature liquefied gas from the liquefied gas supply equipment to the barge tank of the floating low-temperature liquefied gas filling equipment via a hose;
A transport stage for moving the floating cryogenic liquefied gas filling facility to the delivery location of the cryogenic liquefied gas;
Filling a cryogenic liquefied gas directly into a container disposed on a ground transportation truck from the barge tank via the hose by a filling means, and
When a plurality of containers are filled with low-temperature liquefied gas at the same time, the method further comprises a connection step of connecting a low-temperature liquefied gas distribution unit having a plurality of discharge ports at one end on the discharge side of the hose before the filling step. Low temperature liquefied gas delivery method.
前記低温液化ガス分配ユニットは前記ホースの一端に接続される低温液化ガスの流入口と、低温液化ガスを複数の前記コンテナに同時に排出する複数の排出口と、それぞれの排出口の開閉を選択的に行う開閉弁と、それぞれの排出口から排出される低温液化ガスの流量を個別に検出する流量検出手段とを備え、
前記充填段階は同時に充填する前記コンテナの数に合わせて必要な排出口の開閉弁を選択的に開口する選択段階と、
前記流量検出手段により検出された低温液化ガスの流量に基づき前記開閉弁若しくは前記開閉弁とは別に個別に設けられる流量調整手段により低温液化ガスの排出流量を個別に調整する調整段階と、を含むことを特徴とする請求項5に記載の低温液化ガス配送方法。
The low-temperature liquefied gas distribution unit selectively selects a low-temperature liquefied gas inlet connected to one end of the hose, a plurality of outlets for simultaneously discharging the low-temperature liquefied gas to the plurality of containers, and opening and closing of the respective outlets. And a flow rate detecting means for individually detecting the flow rate of the low-temperature liquefied gas discharged from each discharge port,
The filling step is a selection step of selectively opening necessary opening / closing valves according to the number of containers to be filled at the same time;
An adjustment step of individually adjusting the discharge flow rate of the low-temperature liquefied gas by the flow rate adjusting means provided separately from the on-off valve or the on-off valve based on the flow rate of the low-temperature liquefied gas detected by the flow rate detecting means. The low-temperature liquefied gas delivery method according to claim 5 characterized by things.
前記低温液化ガスは液化天然ガス(LNG)であり、前記液化ガス供給設備は液化天然ガス船または浮体式液化天然ガス貯蔵再ガス化設備(FSRU)であり、前記充填手段は加圧蒸発器又はポンプであることを特徴とする請求項5または6に記載の低温液化ガス配送方法。
The low-temperature liquefied gas is liquefied natural gas (LNG), the liquefied gas supply facility is a liquefied natural gas ship or a floating liquefied natural gas storage regasification facility (FSRU), and the filling means is a pressurized evaporator or It is a pump, The low-temperature liquefied gas delivery method of Claim 5 or 6 characterized by the above-mentioned.
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