JP2006117255A - Double-hull tank - Google Patents

Double-hull tank Download PDF

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JP2006117255A
JP2006117255A JP2004304205A JP2004304205A JP2006117255A JP 2006117255 A JP2006117255 A JP 2006117255A JP 2004304205 A JP2004304205 A JP 2004304205A JP 2004304205 A JP2004304205 A JP 2004304205A JP 2006117255 A JP2006117255 A JP 2006117255A
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shell
double
tank
reinforcing rib
frp
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JP4349256B2 (en
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Yoshiho Sawada
田 良 穂 澤
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Tatsuno Corp
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Tatsuno Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a double-hull tank whose inner and outer hulls are both made of FRP, which has a high strength, is capable of making stress concentration as small as possible, detecting highly accurately leakage and easily placing on a base when it is installed. <P>SOLUTION: In the double-hull tank 1 consisting of the inner hull 2 made of the FRP, and the outer hull 4 formed through a leakage detecting space 3 to the inner hull 2 and made of the FRP, a ring-like reinforcing rib 6 is fitted inside in the radial direction of the inner hull 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、給油所等の地下に埋設され、自動車へ供給する燃料油を貯留する二重殻タンクに関し、特にＦＲＰ製の内殻とその内殻と漏洩検知空間を介して形成されたＦＲＰ製の外殻とより成る二重殻タンクに関する。   The present invention relates to a double shell tank that is buried underground such as a gas station and stores fuel oil to be supplied to an automobile, and more particularly, an FRP inner shell, its inner shell, and an FRP made through a leak detection space. This relates to a double shell tank consisting of the outer shell.

燃料油を貯留する給油所のタンクは、地下に埋設されている。このタンクが損傷して燃料油が流出すると、危険であり環境破壊となる。そこで、タンクを漏洩検知空間を有する二重殻タンクとし、漏洩検知空間に設けた漏洩検知器でタンクの損傷を検知している。二重殻タンクは、内外殻共が鋼製、内殻が鋼製で外殻がガラス繊維強化プラスチック（以下ＦＲＰと記す）製、内外殻共がＦＲＰ製のものがある。そして、内外殻共がＦＲＰ製の二重殻タンクは、軽量で耐蝕性が高く、急速に普及している。   The tank of the gas station that stores fuel oil is buried underground. If this tank is damaged and fuel oil flows out, it is dangerous and environmental destruction. Therefore, the tank is a double-shell tank having a leak detection space, and damage to the tank is detected by a leak detector provided in the leak detection space. There are double shell tanks in which the inner and outer shells are made of steel, the inner shell is made of steel, the outer shell is made of glass fiber reinforced plastic (hereinafter referred to as FRP), and the inner and outer shells are made of FRP. And the double shell tank whose inner and outer shells are made of FRP is light and highly corrosion resistant, and is rapidly spreading.

しかし、内外殻共がＦＲＰ製の二重殻タンクは、鋼製のタンクに比べて強度が低いために、補強リブを設けて強度を高める必要がある。特許文献１、２に示すように、補強リブは内外殻の外側に出っ張って設けられ、このために二重殻タンクを載置する枕が複雑な形状となり、枕が補強リブの形状に一致していないと局部的に荷重が掛かり、この応力集中によりタンクが損傷することになる。   However, since the strength of the double shell tank made of FRP for both inner and outer shells is lower than that of the steel tank, it is necessary to increase the strength by providing reinforcing ribs. As shown in Patent Documents 1 and 2, the reinforcing rib protrudes outside the inner and outer shells. For this reason, the pillow on which the double shell tank is placed has a complicated shape, and the pillow matches the shape of the reinforcing rib. Otherwise, a load is applied locally, and this stress concentration will damage the tank.

また、内殻及び外核は別体に形成されているので、内殻及び外核に掛かる圧力は漏洩検知空間を介して外殻及び内核に掛かり、漏洩検知空間の体積が変化し、誤検知される虞がある。
さらに、タンクの内壁に防波板が無いために、地震によりタンクが揺れると燃料油が大きく波立ち、波によりタンクが損傷する虞がある。
米国特許第４８７５３６１号明細書 特開平６−３９９５６号公報 In addition, since the inner shell and outer core are formed separately, the pressure applied to the inner shell and outer core is applied to the outer shell and inner core via the leak detection space, and the volume of the leak detection space changes, resulting in false detection. There is a risk of being.
Furthermore, since there is no wave breaker on the inner wall of the tank, there is a risk that if the tank is shaken by an earthquake, the fuel oil will swell greatly and the tank may be damaged by the wave.
US Pat. No. 4,875,361 JP-A-6-39956

本発明は上記に鑑みてなされたもので、内外殻共がＦＲＰ製の二重殻タンクで、強度が高く、応力集中を極力小さくでき、しかも設置に際して基礎上に容易に載置できる二重殻タンクを提供することを目的としている。   The present invention has been made in view of the above, and is a double shell tank made of FRP for both inner and outer shells, which has high strength, can reduce stress concentration as much as possible, and can be easily placed on the foundation during installation. The purpose is to provide a tank.

本発明によれば、ＦＲＰ製の内殻２と、該内殻２と漏洩検知空間３を介して形成されたＦＲＰ製の外殻４より成る二重殻タンク１において、前記内殻２内に半径方向内方にリング状の補強リブ６を取り付けている。
そして本発明によれば、前記内殻２と外殻４との間の漏洩検知空間３に三次元構造のガラス繊維５を介在し、該三次元構造のガラス繊維５で内殻２と外殻４とを一体構造としている。
かつ本発明によれば、前記補強リブ６の断面形状をＬ字状、Ｉ字状又はＴ字状に形成されている。
さらに本発明によれば、前記補強リブ６の下部には連通口７が開けられている。
また本発明によれば、前記補強リブ６の上部には通気口８が開けられている。
そして本発明によれば、前記外殻４の上部に滑り止め処理９が施されている。また、本発明によれば、前記内殻２の下部に前記補強リブ６の高さ以上に半径方向内方に突出する底盤１６を設けてある。 According to the present invention, in a double shell tank 1 comprising an inner shell 2 made of FRP and an outer shell 4 made of FRP formed through the inner shell 2 and a leak detection space 3, A ring-shaped reinforcing rib 6 is attached inward in the radial direction.
According to the present invention, the glass fiber 5 having a three-dimensional structure is interposed in the leakage detection space 3 between the inner shell 2 and the outer shell 4, and the inner shell 2 and the outer shell are formed by the three-dimensional glass fiber 5. 4 is an integral structure.
And according to this invention, the cross-sectional shape of the said reinforcing rib 6 is formed in L shape, I shape, or T shape.
Furthermore, according to the present invention, the communication port 7 is opened at the lower part of the reinforcing rib 6.
Further, according to the present invention, the vent hole 8 is opened at the upper part of the reinforcing rib 6.
According to the present invention, the anti-slip treatment 9 is applied to the upper part of the outer shell 4. Further, according to the present invention, the bottom plate 16 is provided in the lower part of the inner shell 2 so as to protrude radially inward beyond the height of the reinforcing rib 6.

（１） 内殻内にリング状の補強リブを設けたので、外圧を受けると内殻が補強リブ側に押圧されて充分な強度が確保できる。
（２） 内殻内にリング状の補強リブを設けたので、地震によるタンク内の燃料油の波立ちが低減され、波によるタンクの損傷が防止できる。
（３） 二重殻タンクの外殻が凸凹のない円筒形となるので、タンクを載置する基礎は単純な平な構造のものが使用でき、応力集中により損傷することがない。
（４） 内殻と外殻とを三次元構造のガラス繊維を介して一体構造とすることにより、内殻及び外殻が比較的薄くても充分な強度が得られる。
（５） 内殻と外殻とを三次元構造のガラス繊維を介して一体構造とすることにより、漏洩検知空間の体積変化が少なくなり、正確な漏洩検知ができるようになる。
（６） 補強リブの下部には連通口が開けることにより、一箇所の清掃管のバキュームホースから全てのゴミ及び水を吸い出すことができる。
（７） 補強リブの上部には通気口が開けられることにより、満タンまで燃料油を注油した場合でも通気口を介して通気が確保できる。
（８） Ｌ字状又はＴ字状の補強リブを使用することにより、補強リブは内殻に広い面積で接触し、充分な強度が確保できるようになる。
（９） 二重殻タンクの上面に滑り止め処理を施すことにより、設置工事時の作業員の安全が確保できるようになる。
（１０） 内殻の下部に補強リブの高さ以上の底盤を設けることにより、一箇所の清掃管のバキュームホースから全てのゴミ及び水を吸い出すことができるようになる。 (1) Since the ring-shaped reinforcing rib is provided in the inner shell, when the external pressure is applied, the inner shell is pressed to the reinforcing rib side and sufficient strength can be secured.
(2) Since the ring-shaped reinforcing rib is provided in the inner shell, the ripple of fuel oil in the tank due to the earthquake is reduced, and damage to the tank due to the wave can be prevented.
(3) Since the outer shell of the double-shell tank has a cylindrical shape with no irregularities, a simple flat structure can be used as the foundation on which the tank is placed, and it is not damaged by stress concentration.
(4) Since the inner shell and the outer shell are integrated with each other through a three-dimensional glass fiber, sufficient strength can be obtained even if the inner shell and the outer shell are relatively thin.
(5) By making the inner shell and the outer shell into an integrated structure via a three-dimensional glass fiber, the volume change of the leakage detection space is reduced, and accurate leakage detection can be performed.
(6) By opening a communication port in the lower part of the reinforcing rib, it is possible to suck out all dust and water from the vacuum hose of one cleaning pipe.
(7) By opening a vent in the upper part of the reinforcing rib, it is possible to ensure ventilation through the vent even when fuel oil is filled up to full tank.
(8) By using the L-shaped or T-shaped reinforcing rib, the reinforcing rib comes into contact with the inner shell over a wide area, and sufficient strength can be secured.
(9) By applying anti-slip treatment to the upper surface of the double-shell tank, it is possible to ensure the safety of workers during installation work.
(10) By providing a bottom plate that is higher than the height of the reinforcing rib at the lower part of the inner shell, it becomes possible to suck out all dust and water from the vacuum hose of one cleaning pipe.

図１は本発明の二重殻タンクの断面図、図２は図１のＡ−Ａ矢視断面図、図３は二重殻タンクの下部の断面図、図４は二重殻タンクの上部の断面図ある。
二重殻タンク１の内殻２の外側には、漏洩検知空間３を存して外殻４が形成されている。内殻２及び外殻４はＦＲＰ製で、漏洩検知空間３には三次元構造のガラス繊維５が設けられている。 1 is a cross-sectional view of the double-shell tank of the present invention, FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, FIG. 3 is a cross-sectional view of the lower portion of the double-shell tank, and FIG. FIG.
An outer shell 4 is formed outside the inner shell 2 of the double shell tank 1 with a leakage detection space 3. The inner shell 2 and the outer shell 4 are made of FRP, and a three-dimensional glass fiber 5 is provided in the leak detection space 3.

漏洩検知空間３に設けられている三次元構造のガラス繊維５は、ガラス繊維を絡ませてシート状に成形したもので、後述するように、漏洩検知空間３に入れられた漏洩検知液の流れの自由が確保されるもの、すなわち透水性のものである。そして、ＦＲＰ製の内殻２及び外核４は、三次元構造のガラス繊維５により一体構造に形成されている。なお、漏洩検知空間３の間隔Ｓは約２〜４ｍｍである。またこの三次元構造のガラス繊維５は部分的に多数の板状又は筒状のものを配置することもできる。   The glass fiber 5 having a three-dimensional structure provided in the leak detection space 3 is formed by entwining the glass fiber into a sheet shape. As will be described later, the flow of the leak detection liquid placed in the leak detection space 3 Freedom is ensured, that is, water-permeable. The inner shell 2 and the outer core 4 made of FRP are formed in an integral structure with a three-dimensional glass fiber 5. In addition, the space | interval S of the leak detection space 3 is about 2-4 mm. The glass fiber 5 having a three-dimensional structure can be partially arranged in a number of plate-like or cylindrical shapes.

この様に、内殻２及び外核４を三次元構造のガラス繊維５で一体構造にすることにより、内殻２及び外殻４に掛かる圧力は三次元構造のガラス繊維５を介して外殻２及び内殻４に掛かるようになり、内殻２及び外核４は比較的薄くても充分な強度が得られる。
内殻２内には半径方向にリング状の補強リブ６が設けられている。この補強リブ６はＦＲＰ製で、補強リブ６の下部には連通口７が開けられ、上部には通気口８が開けられている。なお、補強リブ６の設置間隔Ｌは約１００〜１５０ｃｍであり、高さＨは約２０ｃｍである。 In this way, by making the inner shell 2 and the outer core 4 integrally with the three-dimensional glass fiber 5, the pressure applied to the inner shell 2 and the outer shell 4 is passed through the three-dimensional glass fiber 5 to the outer shell. 2 and the inner shell 4, and even if the inner shell 2 and the outer core 4 are relatively thin, sufficient strength can be obtained.
A ring-shaped reinforcing rib 6 is provided in the inner shell 2 in the radial direction. The reinforcing rib 6 is made of FRP, and a communication port 7 is opened at the lower part of the reinforcing rib 6 and a vent hole 8 is opened at the upper part. In addition, the installation space | interval L of the reinforcement rib 6 is about 100-150 cm, and the height H is about 20 cm.

この様に、内殻２内に補強リブ６を設けたので、外圧を受けると内殻２が補強リブ６側に押圧されて充分な強度が確保できる。また、内殻２内に設けた補強リブ６が防波板として働き、地震による燃料油の波立ちが低減され、波によるタンクの損傷が防止できる。
外殻４の上部は、滑り止め処理９として珪砂が塗布されている。この珪砂は外殻４のＦＲＰが固まる前に塗布することにより、珪砂が外殻４に強固に着いて滑り止めの効果が大きくなる。なお、滑り止め処理９としては、外殻４上部のＦＲＰの表面を粗めの凸凹形状としても良い。 As described above, since the reinforcing rib 6 is provided in the inner shell 2, when the outer pressure is applied, the inner shell 2 is pressed toward the reinforcing rib 6 and sufficient strength can be secured. In addition, the reinforcing rib 6 provided in the inner shell 2 functions as a wave preventing plate, so that the swell of fuel oil due to the earthquake is reduced, and damage to the tank due to the wave can be prevented.
The upper part of the outer shell 4 is coated with silica sand as a non-slip treatment 9. By applying the silica sand before the FRP of the outer shell 4 is hardened, the silica sand firmly adheres to the outer shell 4 and the effect of preventing slipping is increased. Note that, as the anti-slip treatment 9, the surface of the FRP above the outer shell 4 may be formed into a rough uneven shape.

二重殻タンク１の漏洩検知空間３には漏洩検知液が入れられ、液位の変化を検知する漏洩検知器１０が設けられている。二重殻タンク１が損傷して漏洩検知液が流出し、これを漏洩検知器１０が検知すると、検知信号は図示しないモニターに伝えられ、漏洩はリアルタイムで検知できるようになっている。
上述したように、内殻２と外殻４とは三次元構造のガラス繊維５で一体構造となっているので、漏洩検知空間３の体積変化が少なく、正確な漏洩検知ができる。
さらに、二重殻タンクの１上部には、マンホール１１、通気管１２、清掃管１３等が設けられている。 A leak detector 10 is provided in the leak detection space 3 of the double shell tank 1 to detect a change in the liquid level. When the double shell tank 1 is damaged and the leak detection liquid flows out, and the leak detector 10 detects this, the detection signal is transmitted to a monitor (not shown) so that the leak can be detected in real time.
As described above, since the inner shell 2 and the outer shell 4 are integrated with the three-dimensional glass fiber 5, the volume change of the leak detection space 3 is small and accurate leak detection can be performed.
Further, a manhole 11, a vent pipe 12, a cleaning pipe 13 and the like are provided on the upper portion of the double shell tank.

図５に示すように、鋼製の補強リブ６の断面形状は、内殻２への接触面積が広いＬ字状であり、内殻２にＦＲＰ１４で強固に取り付けられている。なお、補強リブ６はＩ字状、Ｔ字状でも同様である。
この様に、補強リブ６を内殻２への接触面積が広い形状とすることにより、内殻２の充分な強度が確保できるようになる。 As shown in FIG. 5, the cross-sectional shape of the steel reinforcing rib 6 is an L shape having a wide contact area with the inner shell 2 and is firmly attached to the inner shell 2 with the FRP 14. The same applies to the reinforcing rib 6 even if it is I-shaped or T-shaped.
Thus, by making the reinforcing rib 6 into a shape with a wide contact area with the inner shell 2, sufficient strength of the inner shell 2 can be secured.

以上のように構成された二重タンク１は設置場所に設けた基礎１５上に弾性体のシート例えばゴムシートＳを介して載置され、マンホール１１には図示しない注油管及び給油管等が配設され、通気管１２には図示しないエアーベント管が配設される。
上述したように、補強リブ６が内殻２内に設けられ、外殻４は凸凹のない円筒形であるので、二重殻タンク１を載置する基礎１５は従来から使用されている単純な構造のものでよく、応力集中を受けることがない。 The double tank 1 configured as described above is placed on a base 15 provided at an installation location via an elastic sheet, for example, a rubber sheet S, and an oil supply pipe and a fuel supply pipe (not shown) are arranged in the manhole 11. The vent pipe 12 is provided with an air vent pipe (not shown).
As described above, since the reinforcing rib 6 is provided in the inner shell 2 and the outer shell 4 has a cylindrical shape without unevenness, the foundation 15 on which the double-shell tank 1 is placed is a simple one that has been conventionally used. It may be of a structure and does not receive stress concentration.

また、外殻４の上部には滑り止め処理９が施されているので、設置工事時の作業員の安全が確保できるようになる。
給油所では、マンホール１１に設けた注油管から燃料油を入れ、この燃料油を給油管から汲み出して自動車へ給油する。 Moreover, since the anti-slip | skid process 9 is given to the upper part of the outer shell 4, it becomes possible to ensure the safety | security of the worker at the time of installation construction.
At the filling station, fuel oil is introduced from an oil supply pipe provided in the manhole 11, and this fuel oil is pumped out of the oil supply pipe and supplied to the automobile.

上述したように、補強リブ６の上部には通気口８が開けられているので、満タンまで燃料油を注油した場合でも通気口８を介してタンク内の通気が確保できる。
長期間の使用により、二重タンク１内にゴミ及び水分が溜まった場合は、清掃管１３からバキュームホースを挿入して吸い出して除去する。
上述したように、補強リブ６には連通口７が開けられているので、一箇所の清掃管１３のバキュームホースから全てのゴミ及び水を吸い出すことができる。 As described above, since the vent hole 8 is opened on the upper portion of the reinforcing rib 6, it is possible to ensure the ventilation in the tank through the vent hole 8 even when the fuel oil is filled up to the full tank.
If dust and moisture accumulate in the double tank 1 due to long-term use, a vacuum hose is inserted from the cleaning pipe 13 and sucked out.
As described above, since the communication port 7 is opened in the reinforcing rib 6, all dust and water can be sucked out from the vacuum hose of the cleaning pipe 13 in one place.

図６は、他の実施の形態の二重殻タンクの断面図で、二重殻タンク１の内殻２の下部に補強リブ６の高さ以上の底盤１６を設けている。この底盤１６は樹脂モルタルを使用して作られ、清掃管１３の下方へ向かって傾斜して形成されている。
この様に、底盤１６を設けることにより、二重タンク１内に溜まったゴミ及び水分は補強リブ６に邪魔されることなく流れることができ、清掃管１３から挿入したバキュームホースで吸い出すことができるようになる。 FIG. 6 is a cross-sectional view of a double shell tank according to another embodiment, and a bottom plate 16 having a height equal to or higher than the height of the reinforcing rib 6 is provided at the lower portion of the inner shell 2 of the double shell tank 1. The bottom plate 16 is made using resin mortar, and is inclined toward the lower side of the cleaning tube 13.
In this way, by providing the bottom plate 16, dust and moisture accumulated in the double tank 1 can flow without being obstructed by the reinforcing rib 6, and can be sucked out by a vacuum hose inserted from the cleaning pipe 13. It becomes like this.

強度及び耐久性が高い二重殻タンクとなるので、安全で環境に優しい給油所の普及に貢献できる。   Because it is a double-shell tank with high strength and durability, it can contribute to the spread of safe and environmentally friendly gas stations.

本発明を実施した二重殻タンクの断面図。Sectional drawing of the double shell tank which implemented this invention. 図１のＡ−Ａ矢視断面図。AA arrow sectional drawing of FIG. 図１に示す二重殻タンクの下部の断面図。Sectional drawing of the lower part of the double shell tank shown in FIG. 図１に示す二重殻タンクの上部の断面図。Sectional drawing of the upper part of the double shell tank shown in FIG. 図２に示す補強リブ部分の断面図。Sectional drawing of the reinforcement rib part shown in FIG. 本発明の他の実施の形態を示す二重殻タンクの断面図。Sectional drawing of the double shell tank which shows other embodiment of this invention.

符号の説明Explanation of symbols

１・・・二重殻タンク
２・・・内殻
３・・・漏洩検知空間
４・・・外殻
５・・・三次元構造のガラス繊維
６・・・補強リブ
７・・・連通口
８・・・通気口
９・・・滑り止め処理
１０・・・漏洩検知器
１１・・・マンホール
１２・・・通気管
１３・・・清掃管
１４・・・ＦＲＰ
１５・・・基礎
１６・・・底盤 DESCRIPTION OF SYMBOLS 1 ... Double shell tank 2 ... Inner shell 3 ... Leak detection space 4 ... Outer shell 5 ... Three-dimensional glass fiber 6 ... Reinforcement rib 7 ... Communication port 8 ... Vent 9 ... Anti-slip treatment 10 ... Leak detector 11 ... Manhole 12 ... Vent pipe 13 ... Cleaning pipe 14 ... FRP
15 ... Basic 16 ... Bottom

Claims (7)

ＦＲＰ製の内殻と、該内殻と漏洩検知空間を介して形成されたＦＲＰ製の外殻より成る二重殻タンクにおいて、前記内殻内に半径方向内方にリング状の補強リブを取り付けたことを特徴とする二重殻タンク。   In a double shell tank consisting of an inner shell made of FRP and an outer shell made of FRP formed through the inner shell and a leakage detection space, a ring-shaped reinforcing rib is attached radially inward to the inner shell. A double shell tank characterized by that. 前記内殻と外殻との間の漏洩検知空間に三次元構造の透水性のガラス繊維を介在され、該三次元構造のガラス繊維で内殻と外殻とを一体構造とした請求項１に記載の二重殻タンク。   The water-permeable glass fiber having a three-dimensional structure is interposed in a leakage detection space between the inner shell and the outer shell, and the inner shell and the outer shell are integrally structured with the three-dimensional glass fiber. Double shell tank as described. 前記補強リブはＦＲＰ製で断面がＬ字状、Ｉ字状又はＴ字状に形成されている請求項１記載の二重殻タンク。   The double shell tank according to claim 1, wherein the reinforcing rib is made of FRP and has a cross section formed in an L shape, an I shape, or a T shape. 前記補強リブの上部には通気口が開けられている請求項１に記載の二重殻タンク。   The double shell tank according to claim 1, wherein a ventilation hole is opened at an upper portion of the reinforcing rib. 前記補強リブの下部には連通口が開けられている請求項１に記載の二重殻タンク。   The double-shell tank according to claim 1, wherein a communication port is opened at a lower portion of the reinforcing rib. 内殻の下部に半径方向内方に突出する底盤が設けられている請求項１記載の二重殻タンク。   2. The double shell tank according to claim 1, wherein a bottom plate projecting radially inward is provided at a lower portion of the inner shell. 外殻の上部に滑り止めが設けられている請求項１記載の二重殻タンク。   The double-shell tank according to claim 1, wherein an anti-slip is provided on an upper portion of the outer shell.
JP2004304205A 2004-10-19 2004-10-19 Double shell tank Expired - Fee Related JP4349256B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011025986A (en) * 2009-07-29 2011-02-10 Tatsuno Corp Underground tank and method for manufacturing the same
JP2011025987A (en) * 2009-07-29 2011-02-10 Tatsuno Corp Underground tank and method for manufacturing the same
CN104249875A (en) * 2014-06-13 2014-12-31 扬州市邗江金城石化设备有限公司 Novel double-layer oil tank
KR101804495B1 (en) * 2017-08-18 2017-12-04 (주)지지산업 Assembly protection barrier of undergrounding storage tank and installation method thereof

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN104816897B (en) * 2015-05-06 2016-06-22 保定长空石油工业股份有限公司 A kind of fiberglass two-compartment oil tank and processing technology thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011025986A (en) * 2009-07-29 2011-02-10 Tatsuno Corp Underground tank and method for manufacturing the same
JP2011025987A (en) * 2009-07-29 2011-02-10 Tatsuno Corp Underground tank and method for manufacturing the same
CN104249875A (en) * 2014-06-13 2014-12-31 扬州市邗江金城石化设备有限公司 Novel double-layer oil tank
KR101804495B1 (en) * 2017-08-18 2017-12-04 (주)지지산업 Assembly protection barrier of undergrounding storage tank and installation method thereof

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