JPH0356996B2

JPH0356996B2 -

Info

Publication number: JPH0356996B2
Application number: JP58007965A
Authority: JP
Priority date: 1983-01-19
Filing date: 1983-01-19
Publication date: 1991-08-29
Also published as: JPS59134176A

Description

【発明の詳細な説明】（産業上の利用分野）本発明は石油タンク等の液体タンク、詳しくは
内側に袋を有する液体タンクに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a liquid tank such as an oil tank, and more particularly to a liquid tank having a bag inside.

（従来の技術）１基の液体タンクに異種の液体同志を貯蔵した
い要求がある。このため液体タンクを複数の貯室
に区切る液体タンクの構造が種々提案され、かつ
実施されてもいる。(Prior Art) There is a demand for storing different types of liquids in one liquid tank. For this reason, various liquid tank structures have been proposed and implemented in which the liquid tank is divided into a plurality of storage chambers.

（発明が解決しようとする課題）これらのなかで、構造の最も単純なものは、液
体タンク内に可撓性膜材料からなる袋を設け、そ
れを新たな貯室の一つとするものである。しかし
ながらこの構造のものには次のような問題点があ
る。(Problems to be Solved by the Invention) Among these, the simplest structure is one in which a bag made of a flexible membrane material is provided inside the liquid tank, and this is used as one of the new storage chambers. . However, this structure has the following problems.

第１図のように袋が小さい場合、袋内の液が満
杯で袋外の液が空のとき、袋には大きな膜張力が
かかるため、相当高強度な膜材料が必要となる。
また地震時の揺動等で袋が動いた場合、袋が液体
タンク内配管等（図示しない）に触れ、ひつかか
つたりして破損をおこすおそれがある。 When the bag is small as shown in FIG. 1, when the bag is full of liquid and the outside of the bag is empty, a large membrane tension is applied to the bag, so a membrane material with considerably high strength is required.
Furthermore, if the bag moves due to shaking during an earthquake, etc., there is a risk that the bag will come into contact with piping, etc. (not shown) in the liquid tank, and be pinched and damaged.

又第２図のように袋が大きい場合には、袋にか
かる液圧は液体タンクが担持することになるので
膜張力は０かあるいは極めて小さく有利である
が、しかしながらまた袋が液体タンク内配管と触
れるので破損する危険性が高い。また袋外の液の
注排出口をふさぐおそれもある。 If the bag is large as shown in Figure 2, the liquid pressure applied to the bag will be carried by the liquid tank, so the membrane tension will be zero or very small, which is advantageous. There is a high risk of damage due to contact with the There is also a risk of blocking the inlet and outlet for liquid outside the bag.

なお第１，２図中、１は液体タンク、２は小さ
い袋ただし袋内満杯、袋外空のとき、２′は小さ
い袋ただし液体タンク側壁に衝突のとき、４及び
４′は膜張力、５は大きい袋たゞし袋内満杯のと
き、５′は大きい袋たゞし袋内満杯でないときを
夫々示している。 In Figures 1 and 2, 1 is the liquid tank, 2 is a small bag, but when the bag is full and the outside is empty, 2' is a small bag, but when it collides with the side wall of the liquid tank, 4 and 4' are membrane tension, 5 indicates when a large bag is used and the bag is full, and 5' indicates when a large bag is used and the bag is not full.

上記に鑑み本発明はこれら問題点を解消すべく
開発されたものである。 In view of the above, the present invention was developed to solve these problems.

（課題を解決するための手段）即ち本発明の液体タンクは、液体タンクの内側
に可撓性膜材料よりなる袋を設け、該袋を別種液
体の貯室とする液体タンクに於いて、該袋の位置
を規制する液体タンク床面に垂直な剛体壁を、剛
体壁によつて仕切られる一方の側から他方の側へ
又は他方の側から一方の側へ剛体壁を貫通して或
いは剛体壁を超えて液体の移動が出来るように設
けたことを特徴とするものである。(Means for Solving the Problems) That is, the liquid tank of the present invention has a bag made of a flexible membrane material inside the liquid tank, and the bag is used as a storage chamber for a different type of liquid. A rigid wall perpendicular to the liquid tank floor surface that regulates the position of the bag is inserted through the rigid wall from one side to the other or from the other side to the other side partitioned by the rigid wall. It is characterized in that it is provided so that the liquid can move beyond the range.

（作用）本発明に於いては、液体タンクの中に袋の位置
を規制する液体タンク床面に垂直な剛体壁を設け
る。該剛体壁により、液体タンク内配管と袋を隔
絶させ、かつ該剛体壁のみで、あるいは該剛体壁
と液体タンクの壁にて袋にかかる液圧を担持しう
るものとする。(Function) In the present invention, a rigid wall perpendicular to the liquid tank floor surface is provided in the liquid tank to regulate the position of the bag. The rigid wall isolates the liquid tank internal piping from the bag, and the rigid wall alone or the rigid wall and the wall of the liquid tank can support the liquid pressure applied to the bag.

該剛体壁は袋外の液の注排出を容易にするた
め、垂直方向に穴ないしスリツトを設け、袋外の
液体が剛体壁によつて仕切られた一方の側から他
方へ又は他方の側から一方へ自由に出入りできる
ようにする。あるいは該剛体壁の高さを袋の高さ
と同等以上ではあるが、液体タンクの実質的な高
さ以下にすることによつて袋外の液を袋の膨張
（袋内液注入）によつて該剛体壁をオーバーフロ
ーさせるようにして排出を助けるような構造でも
よい。 The rigid wall is provided with holes or slits in the vertical direction to facilitate pouring and discharging the liquid outside the bag, so that the liquid outside the bag can flow from one side to the other or from the other side partitioned by the rigid wall. Allow free access to one side. Alternatively, by setting the height of the rigid wall to be equal to or greater than the height of the bag, but less than the substantial height of the liquid tank, the liquid outside the bag can be drained by expanding the bag (liquid injection into the bag). The structure may be such that the rigid wall overflows to assist in evacuation.

（実施例）以下に本発明を実施例により更に説明する。(Example) The present invention will be further explained below with reference to Examples.

第３図は実質的に液体タンク１の高さを有する
穴９あきの該剛体壁８の例であり、該剛体壁の左
右両端は液体タンク側壁にある。この場合、液体
タンク内配管あるいは、はしご等は該剛体壁に関
し袋７と反対側に一括集中して設ける（図示しな
い）。 FIG. 3 shows an example of the rigid wall 8 having holes 9 having substantially the height of the liquid tank 1, and both left and right ends of the rigid wall are located on the side walls of the liquid tank. In this case, the pipes in the liquid tank, the ladder, etc. are provided centrally on the opposite side of the rigid wall from the bag 7 (not shown).

第４図は袋１０よりわずかに高いが液体タンク
１の高さよりは低い高さを有する穴ないしスリツ
トを有さない剛体壁１１の例であり、該剛体壁は
上の開いた筒状をなす。この場合液体タンク内配
管は該剛体壁の周囲に設ける（図示しない）。 FIG. 4 shows an example of a rigid wall 11 without holes or slits having a height slightly higher than the bag 10 but lower than the height of the liquid tank 1, the rigid wall having an open cylindrical shape at the top. . In this case, the liquid tank internal piping is provided around the rigid wall (not shown).

もちろん第３図のような剛体壁において穴を設
けないかわりにその高さを低くし袋の膨張により
袋外の液を袋側から剛体壁をオーバーフローさせ
てもよい。あるいは第４図のような剛体壁におい
て、穴ないしスリツトを設ければ袋外の液の注排
出がよりしやすくなる。 Of course, instead of providing a hole in the rigid wall as shown in FIG. 3, the height thereof may be lowered and the liquid outside the bag may overflow from the bag side through the expansion of the bag. Alternatively, if holes or slits are provided in the rigid wall as shown in FIG. 4, it will be easier to pour and drain the liquid outside the bag.

なお第５図は本発明に於ける袋の形状を例示す
る図で図ａは密閉状袋の場合、図ｂ，ｃは下側開
放状袋の場合である。 FIG. 5 is a diagram illustrating the shape of the bag according to the present invention, and FIG. 5A shows a sealed bag, and FIGS. B and C show a bag with an open bottom.

（発明の効果）以上の様な本発明のタンクは下記のような利点
を有する。(Effects of the Invention) The tank of the present invention as described above has the following advantages.

袋と液体タンク内配管等が接触しないため、
それらの障害物、突起物によつて袋が破損した
り、あるいは逆に配管等が破損したりしない。 Because the bag and the piping inside the liquid tank do not come into contact,
These obstacles and protrusions will not damage the bag, or conversely, the piping, etc. will not be damaged.

袋と液体タンク内配管が接触しないため、袋
外の液の注排出が妨げられない。 Since the bag and the piping inside the liquid tank do not come into contact with each other, pouring and discharging the liquid outside the bag is not hindered.

剛体壁によつて袋にかかる液圧が担持される
ため、袋に過大な膨張力がかからず、特に高強
度な膜材料とする必要がない。 Since the hydraulic pressure on the bag is carried by the rigid wall, the bag is not subject to excessive expansion forces and there is no need for a particularly strong membrane material.

[Brief explanation of drawings]

第１，２図は袋をタンク内側に備える液体タン
クの従来例を説明する図で、第１図は小さい袋の
場合、第２図は大きい袋の場合、第３，４図は袋
をタンク内側に備える液体タンクの本発明例を説
明する図で、第３図は液体タンクの側壁に左右両
端のある剛体壁を設けた場合、第４図は筒状剛体
壁を設けた場合、第５図ａ，ｂ，ｃは共に本発明
の袋の形状を夫々例示している。１……液体タンク、２……袋（小さい、袋内満
杯、袋外空）、２′……袋（小さい、液体タンク側
壁に衝突）、４，４′……膜張力、５……袋（大き
い、袋内満杯）、５′……袋（大きい、袋内満杯で
ない）、７……袋（満杯）、８……剛体壁（穴付
き、左右両端が液体タンク側壁にあるもの）、９
……穴、１０……袋（満杯）、１１……剛体壁
（穴なし、筒状）。 Figures 1 and 2 are diagrams explaining conventional examples of liquid tanks with bags inside the tank. Figure 1 is for a small bag, Figure 2 is for a large bag, and Figures 3 and 4 are for a bag inside the tank. 3 is a diagram illustrating an example of the present invention of a liquid tank provided inside. FIG. 3 shows a case in which a rigid wall with left and right ends is provided on the side wall of the liquid tank, FIG. 4 shows a case in which a cylindrical rigid wall is provided, and a fifth Figures a, b and c all illustrate the shape of the bag of the present invention, respectively. 1...Liquid tank, 2...Bag (small, full inside the bag, empty outside the bag), 2'...Bag (small, colliding with the side wall of the liquid tank), 4, 4'...Membrane tension, 5...Bag (large, bag full), 5'... bag (large, bag not full), 7... bag (full), 8... rigid wall (with holes, both left and right ends are on the side wall of the liquid tank), 9
... hole, 10 ... bag (full), 11 ... rigid wall (no hole, cylindrical).

Claims

[Claims] 1. In a liquid tank in which a bag made of a flexible membrane material is provided inside the liquid tank, and the bag serves as a storage chamber for a different type of liquid, a liquid tank floor surface that regulates the position of the bag. a rigid wall perpendicular to the rigid wall such that liquid can move through or across the rigid wall from one side to the other or from the other side partitioned by the rigid wall. A liquid tank characterized by being provided with. 2. The liquid tank according to claim 1, wherein the rigid wall is provided with holes or slits in the vertical direction so that liquid can move through the rigid wall. 3. To allow liquid to move across rigid walls,
The liquid tank according to claim 1, wherein the height of the rigid wall is equal to or higher than the height of the bag and lower than the substantial height of the liquid tank. 4. Claim 1, in which the rigid wall is cylindrical;
The liquid tank according to item 2 or 3. 5. The liquid tank according to claim 1, 2, or 3, wherein the rigid wall has both ends on the side walls of the liquid tank. 6. The liquid tank according to claim 5, having a plurality of rigid walls.