JPH04107198U - Tanker cargo oil spill reduction device - Google Patents

Tanker cargo oil spill reduction device

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Publication number
JPH04107198U
JPH04107198U JP1017191U JP1017191U JPH04107198U JP H04107198 U JPH04107198 U JP H04107198U JP 1017191 U JP1017191 U JP 1017191U JP 1017191 U JP1017191 U JP 1017191U JP H04107198 U JPH04107198 U JP H04107198U
Authority
JP
Japan
Prior art keywords
cargo oil
tank
ballast tank
cargo
ballast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1017191U
Other languages
Japanese (ja)
Inventor
一郎 小椋
Original Assignee
石川島播磨重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 石川島播磨重工業株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP1017191U priority Critical patent/JPH04107198U/en
Publication of JPH04107198U publication Critical patent/JPH04107198U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 [目的] 貨油タンクの底部等が損傷して貨油が船外へ
流出する際に、簡単な装置で貨油をバラストタンク内に
移載して、貨油の流出を低減させるタンカーの貨油流出
低減装置を得る。 [構成] 船体内に貨油タンクとバラストタンクとを有
し、上記貨油タンク底部等が損傷して貨油が船外に流出
する際に貨油の流出を低減させるための装置において、
上記貨油タンク下部とバラストタンク下部とを連通し、
損傷時に貨油タンク内の貨油をバラストタンクに導入す
るための下部貨油導入管と、上記貨油タンクとバラスト
タンク上部とを連通し、バラストタンク内の空気を貨油
タンク内に送気するための上部送気管とを備えたことを
特徴としている。
(57) [Summary] [Purpose] When the bottom of a cargo oil tank is damaged and cargo oil spills overboard, a simple device is used to transfer the cargo oil into the ballast tank and prevent the oil from spilling. Obtain a tanker cargo oil spill reduction device that reduces oil spillage. [Structure] A device having a cargo oil tank and a ballast tank inside a ship, and for reducing the outflow of cargo oil when the cargo oil tank bottom etc. is damaged and the cargo oil flows out of the ship,
The lower part of the cargo oil tank and the lower part of the ballast tank are connected,
A lower cargo oil introduction pipe for introducing the cargo oil in the cargo oil tank into the ballast tank in the event of damage communicates with the cargo oil tank and the upper part of the ballast tank, and the air in the ballast tank is fed into the cargo oil tank. It is characterized by being equipped with an upper air pipe for

Description

【考案の詳細な説明】[Detailed explanation of the idea]

【0001】0001

【産業上の利用分野】[Industrial application field]

本考案は、貨油タンクの底部が損傷して貨油が船外へ流出する際に、その貨油 流出を低減することのできるタンカーの貨油流出低減装置に関する。 This invention is designed to prevent cargo oil from leaking out of the ship due to damage to the bottom of the tank. The present invention relates to a tanker cargo oil spill reduction device capable of reducing spills.

【0002】0002

【従来の技術】[Conventional technology]

原油あるいは精製油等の貨油を輸送するタンカーは、坐礁等の海難で船体が損 傷した場合、貨油タンク内の貨油が船外に流出し、海上を汚染させるため、船体 が損傷しても貨油が流出しないよう、船体をダブルハル構造にしたタンカーもあ る。 Tankers transporting cargo oil such as crude oil or refined oil may have their hulls damaged due to marine accidents such as being stranded. If damaged, the cargo oil in the cargo oil tank will leak out of the ship and contaminate the sea, so the ship's hull may be damaged. Some tankers have a double-hull structure to prevent cargo oil from spilling even if the hull is damaged. Ru.

【0003】 一方、船体がシングルハル構造のタンカーにおいては、損傷時に流出する貨油 を極力少なくすることが図られており、その一例としては、損傷した貨油タンク 内の貨油をバラストタンク内に移載し、貸油の水頭圧を低減させることで貨油の 流出を低減させることも考えられている。0003 On the other hand, tankers with single-hull structures have a problem with cargo oil that spills out when damaged. An example of this is to reduce the amount of damage caused by damaged cargo oil tanks. By transferring the cargo oil inside the ballast tank to the ballast tank and reducing the head pressure of the cargo oil, the It is also being considered to reduce runoff.

【0004】0004

【考案が解決しようとする課題】[Problem that the idea aims to solve]

しかしながら、上記のように貨油タンク内の貨油をバラストタンク内に移載す るためには、専用のポンプ等の貨油移送装置が必要であり、それらを駆動するた めの複雑な装置類をも設けなければならない問題がある。 However, as mentioned above, if the cargo oil in the cargo oil tank is transferred to the ballast tank, In order to do this, special cargo oil transfer devices such as pumps are required, and in order to drive them, There is a problem in that complicated equipment must also be provided.

【0005】 そこで本考案は、上述の問題点を解決するために創案されたもので、その目的 は、船体の損傷時に簡単な装置で貨油タンクの貨油をバラストタンクに移載して 、船外への貨油流出を低減させることのできるタンカーの貨油流出低減装置を提 供するにある。[0005] Therefore, this invention was devised to solve the above-mentioned problems. In case of damage to the hull, a simple device is used to transfer cargo oil from cargo oil tanks to ballast tanks. proposed a tanker oil spill reduction device that can reduce oil spills overboard. It is to serve.

【0006】[0006]

【課題を解決するための手段】[Means to solve the problem]

上記目的を達成するために本考案は、船体内に貨油タンクとバラストタンクと を有し、上記貨油タンク底部等が損傷して貨油が船外に流出する際に貨油の流出 を低減させるための装置において、上記貨油タンク下部とバラストタンク下部と を連通し、損傷時に貨油タンク内の貨油をバラストタンクに導入するための下部 貨油導入管と、上記貨油タンクとバラストタンク上部とを連通し、バラストタン ク内の空気を貨油タンク内に送気するための上部送気管とを備えて構成されたも のである。 In order to achieve the above purpose, this invention has a cargo oil tank and a ballast tank inside the hull. If the bottom of the above-mentioned cargo oil tank is damaged and the cargo oil spills overboard, the cargo oil will leak out. In a device for reducing the above-mentioned cargo oil tank and ballast tank, The lower part is used to communicate the cargo oil in the cargo oil tank and introduce the cargo oil into the ballast tank in the event of damage. The cargo oil inlet pipe communicates with the cargo oil tank and the upper part of the ballast tank. An upper air supply pipe for supplying the air inside the tank to the cargo oil tank. It is.

【0007】[0007]

【作用】[Effect]

上記構成によれば、通常の航行中においては、貨油タンクとバラストタンクと が連通しないように下部貨油移送管及び上部送気管を閉じておく。 According to the above configuration, during normal navigation, the cargo oil tank and the ballast tank are Close the lower cargo oil transfer pipe and upper air supply pipe so that they do not communicate with each other.

【0008】 この状態で航行中、タンカーが坐礁等で貨油タンクの底部等が損傷して、貨油 タンク内の貨油が船外に流出するような場合には、その損傷貨油タンクとバラス トタンクを結ぶ上部送気管及び下部貨油導入管を連通させて貸油をバラストタン クへ導入する。[0008] While the tanker was sailing in this condition, the bottom of the cargo oil tank was damaged due to a reef, etc. In the event that the cargo oil in the tank spills overboard, the damaged cargo oil tank and ballast should be The upper air supply pipe connecting the ballast tank and the lower cargo oil inlet pipe are connected to connect the ballast tank to the ballast tank. Introduce it to the website.

【0009】 このとき損傷貨油タンク内の貸油の液面が下がり、貨油の液面上方空間が負圧 になるが、上部送気管を通してバラストタンクから送気されるので、負圧空間と バラストタンク間で空気圧がバランスされ、バラストタンク内は空気圧が低下し て負圧状態となる。[0009] At this time, the liquid level of the cargo oil in the damaged cargo oil tank drops, and the space above the cargo oil level becomes negative pressure. However, since air is supplied from the ballast tank through the upper air pipe, there is no negative pressure space. The air pressure is balanced between the ballast tanks, and the air pressure inside the ballast tanks is reduced. It becomes a negative pressure state.

【0010】 これにより、バラストタンクへの貨油の導入が促進され、早急にバラストタン ク内へ貨油を移載して、船外への貨油の流出を低減させることができる。0010 This will facilitate the introduction of cargo oil into the ballast tank and ensure that the ballast tank is filled as soon as possible. By transferring the cargo oil into the vessel, it is possible to reduce the leakage of cargo oil overboard.

【0011】 また、簡単な配管で損傷貨油タンク内の貨油をバラストタンク内に導入するこ とができるので、複雑な貨油移送装置を設ける必要がない。[0011] It is also possible to introduce cargo oil from damaged cargo oil tanks into ballast tanks with simple piping. Therefore, there is no need to provide a complicated cargo oil transfer device.

【0012】0012

【実施例】【Example】

以下、本考案の実施例を添付図面に基づいて詳述する。 Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

【0013】 図1,図2は本考案のタンカーの貨油流出低減装置の実施例を説明するもので 、図において、1はタンカーの船体で、この船体1内には、貨油を積載する複数 の貨油タンク2及び軽荷状態のときにバラストウォータを積載するバラストタン ク3が区画形成されている。[0013] Figures 1 and 2 illustrate an embodiment of the tanker cargo oil spill reduction device of the present invention. , In the figure, 1 is the hull of a tanker, and inside this hull 1 are multiple tanks that carry cargo oil. cargo oil tank 2 and a ballast tank for loading ballast water when the load is light. 3 is partitioned.

【0014】 上記貨油タンク2内及びバラストタンク3内の下部には、貨油タンク2の船体 底部4が損傷したときに、貨油タンク2内の貨油をバラストタンク内に導入する ための下部貨油導入管5が船長方向に沿って配設されており、その下部貨油導入 管5には、各貨油タンク2内及びバラストタンク3内に連通すべく開口された下 部分岐管6がそれぞれ開閉弁7を介して接続されている。[0014] At the bottom of the cargo oil tank 2 and the ballast tank 3, there is a hull of the cargo oil tank 2. When the bottom part 4 is damaged, the cargo oil in the cargo oil tank 2 is introduced into the ballast tank. A lower cargo oil introduction pipe 5 is arranged along the ship's length, and the lower cargo oil introduction pipe 5 is The pipe 5 has a lower part opened to communicate with the inside of each cargo oil tank 2 and the inside of the ballast tank 3. Partial branch pipes 6 are connected via on-off valves 7, respectively.

【0015】 また、船体1の甲板8上には、上記各貨油タンク2の上部にバラストタンク3 内の空気を送気する上部送気管9が船長方向に沿って配設されており。この上部 送気管9には、各貨油タンク2及びバラストタンク3に連通すべくこれらタンク 2,3に接続された上部分岐管10がそれぞれ開閉弁11を介して接続されてい る。[0015] Also, on the deck 8 of the hull 1, a ballast tank 3 is provided above each cargo oil tank 2. An upper air supply pipe 9 for supplying air inside the vessel is arranged along the ship's ship direction. This upper part The air pipe 9 has these tanks connected to each cargo oil tank 2 and ballast tank 3. Upper branch pipes 10 connected to ports 2 and 3 are connected via on-off valves 11, respectively. Ru.

【0016】 次に、本実施例の作用を説明する。[0016] Next, the operation of this embodiment will be explained.

【0017】 一般的にタンカーは、貨油を満載した状態で航行する場合、バラストタンク3 内が空槽になっている。[0017] Generally speaking, when a tanker is sailing with a full load of cargo oil, the ballast tank 3 There is an empty tank inside.

【0018】 この状態で航行中、坐礁等で貨油タンク2の底部4等が損傷すると、その損傷 箇所12から貨油が船外に流出することになる。[0018] If the bottom 4, etc. of the cargo oil tank 2 is damaged due to a stranded reef while sailing in this condition, the damage will occur. Cargo oil will leak overboard from point 12.

【0019】 このように貨油が流出する場合には、図2に示すように、船体底部4が損傷し た貨油タンク2a内及びバラストタンク3に連通する下部分岐管6の開閉弁7を 開放し、下部貨油導入管5を介して損傷貨油タンク2a内の貨油をバラストタン ク3内へ導入させる。これと同時に損傷貨油タンク2a上部及びバラストタンク 3上部に連通する上部分岐管10の開閉弁11を開放し、上部送気管9を介して バラストタンク3内の空気を損傷貨油タンク2a内へ送気する。[0019] When cargo oil spills like this, the hull bottom 4 may be damaged, as shown in Figure 2. The on-off valve 7 of the lower branch pipe 6 communicating with the inside of the cargo oil tank 2a and the ballast tank 3 is The cargo oil in the damaged cargo oil tank 2a is transferred to the ballast tank through the lower cargo oil introduction pipe 5. 3. At the same time, the upper part of the cargo oil tank 2a and the ballast tank were damaged. 3 Open the on-off valve 11 of the upper branch pipe 10 communicating with the upper part, and The air in the ballast tank 3 is sent into the damaged cargo oil tank 2a.

【0020】 このとき損傷貨油タンク2a内の貨油の液面14が下がり、その液面14と甲 板8間の空間13が負圧になるが、その負圧空間13内にバラストタンク3から 送気されるので、負圧空間13とバラストタンク3内の空気圧がバランスし、バ ラストタンク3内は、空気圧が低下して負圧状態となる。[0020] At this time, the liquid level 14 of the cargo oil in the damaged cargo oil tank 2a drops, and the liquid level 14 and the The space 13 between the plates 8 becomes negative pressure, but there is no water from the ballast tank 3 in the negative pressure space 13. Since air is supplied, the air pressure in the negative pressure space 13 and the ballast tank 3 are balanced, and the ballast tank The air pressure inside the last tank 3 decreases and becomes a negative pressure state.

【0021】 これにより、バラストタンク3内への貨油の導入が促進され、効率よく損傷貨 油タンク2a内の貨油をバラストタンク3内へ移載することができるので、貸油 タンク1内の貸油の水頭圧を早急に低減でき、船外への貨油の流出を低減させる ことができる。[0021] This facilitates the introduction of cargo oil into the ballast tank 3 and efficiently removes damaged cargo. Since the cargo oil in the oil tank 2a can be transferred to the ballast tank 3, The hydraulic head pressure of the cargo oil in tank 1 can be immediately reduced, reducing the leakage of cargo oil to the outside of the ship. be able to.

【0022】 また、装置は下部貨油導入管5及び上部送気管9を配設すればよいので、装置 が簡単となり、貨油移送装置等の複雑な装置類を設ける必要がなくなる。[0022] In addition, since the device only needs to have a lower cargo oil introduction pipe 5 and an upper air supply pipe 9, This simplifies the process and eliminates the need for complicated equipment such as cargo oil transfer equipment.

【0023】 なお、バラストタンク3と損傷貨油タンク2aとは、下部貨油導入管5と上部 送気管9とで閉回路が形成されるので、空槽時のバラストタンク3内へ不活性ガ スを封入しておけば、損傷時の防爆対策を講じることも可能である。[0023] In addition, the ballast tank 3 and the damaged cargo oil tank 2a are the lower cargo oil introduction pipe 5 and the upper cargo oil tank 2a. Since a closed circuit is formed with the air supply pipe 9, inert gas is not allowed to flow into the ballast tank 3 when it is empty. By enclosing a gas, it is also possible to take explosion-proof measures in the event of damage.

【0024】[0024]

【考案の効果】[Effect of the idea]

以上要するに本考案によれば、タンカーの損傷時、貨油タンクから船外に貨油 が流出する際、簡単な装置で貨油タンク内の貨油をバラストタンク内へ早急に導 入して、貨油の流出を低減させることができる。 In summary, according to the present invention, when a tanker is damaged, cargo oil is removed from the cargo oil tank overboard. In the event of a spill, the cargo oil in the cargo oil tank can be quickly guided into the ballast tank using a simple device. This can reduce the spillage of cargo oil.

【図面の簡単な説明】[Brief explanation of drawings]

【図1】本考案のタンカーの貨油流出低減装置の実施例
を説明する側断面図である。
FIG. 1 is a side sectional view illustrating an embodiment of the tanker cargo oil spill reduction device of the present invention.

【図2】上記実施例の作用を説明する一部側断面図であ
る。
FIG. 2 is a partial side sectional view illustrating the operation of the above embodiment.

【符号の説明】[Explanation of symbols]

1 船体 2 貨油タンク 3 バラストタンク 5 下部貨油導入管 9 上部送気管 1 Hull 2 Cargo oil tank 3 Ballast tank 5 Lower cargo oil introduction pipe 9 Upper air pipe

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 船体内に貨油タンクとバラストタンクと
を有し、上記貨油タンク底部等が損傷して貨油が船外に
流出する際に、貨油の流出を低減させるための装置にお
いて、上記貨油タンク下部とバラストタンク下部とを連
通し、損傷時に貨油タンク内の貨油をバラストタンクに
導入するための下部貨油導入管と、上記貨油タンクとバ
ラストタンク上部とを連通し、バラストタンク内の空気
を貨油タンク内に送気するための上部送気管とを備えた
ことを特徴とするタンカーの貨油流出低減装置。
[Claim 1] A device that has a cargo oil tank and a ballast tank inside a ship, and that reduces the outflow of cargo oil when the bottom of the cargo oil tank or the like is damaged and the cargo oil flows out of the ship. , a lower cargo oil introduction pipe for communicating the lower part of the cargo oil tank and the lower part of the ballast tank and for introducing the cargo oil in the cargo oil tank into the ballast tank in the event of damage; 1. A cargo oil spill reduction device for a tanker, comprising: an upper air supply pipe communicating with the ballast tank to send air from the ballast tank to the cargo oil tank.
JP1017191U 1991-02-28 1991-02-28 Tanker cargo oil spill reduction device Pending JPH04107198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1017191U JPH04107198U (en) 1991-02-28 1991-02-28 Tanker cargo oil spill reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1017191U JPH04107198U (en) 1991-02-28 1991-02-28 Tanker cargo oil spill reduction device

Publications (1)

Publication Number Publication Date
JPH04107198U true JPH04107198U (en) 1992-09-16

Family

ID=31900212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1017191U Pending JPH04107198U (en) 1991-02-28 1991-02-28 Tanker cargo oil spill reduction device

Country Status (1)

Country Link
JP (1) JPH04107198U (en)

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