CN100595113C - Reinforced plastic lining double-wall pot - Google Patents

Reinforced plastic lining double-wall pot Download PDF

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Publication number
CN100595113C
CN100595113C CN200510066752A CN200510066752A CN100595113C CN 100595113 C CN100595113 C CN 100595113C CN 200510066752 A CN200510066752 A CN 200510066752A CN 200510066752 A CN200510066752 A CN 200510066752A CN 100595113 C CN100595113 C CN 100595113C
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China
Prior art keywords
jar
coating
particulate
reinforced plastic
reinforced plastics
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Expired - Fee Related
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CN200510066752A
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CN1709773A (en
Inventor
玉田善明
川岛贞男
东崎英树
川北祐贵
大谷内聪
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Tamada Kogyo KK
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Tamada Kogyo KK
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Abstract

The invention provides a reinforced plastic lining double-hull tank which securely prevents cohesion and dew condensation of moisture in air sealed in the empty space of the reinforced plastic liningdouble-hull tank, and which securely prevents a measuring device from causing an erroneous operation during inspection for the presence of the empty space. In the reinforced plastic lining double-hulltank having the surface of the tank coated with a reinforced plastic layer with a gap, a coating layer is formed by applying a coating mixed with fine particles to the surface of the tank, wherein atleast part of the fine particles is projected from the surface of the coating.

Description

The reinforced plastics lining double-wall pot
Technical field
The present invention relates to the reinforced plastics lining double-wall pot, more particularly, relate to jar that can prevent formations such as steel can for example reliably and the gap generation dewfall that is overlayed on the lip-deep reinforced plastic layer of this jar, when the affirmation aforementioned gap exists, can prevent the reinforced plastics lining double-wall pot of analyzer misoperation.
Background technology
The part modification law of the rules and regulations of associated danger thing regulation and the rule that associated danger thing predetermined rule is partly revised have begun to revise, implement, can use to be embedded in underground reinforced plastics lining double-wall pot storage dangerous article.
So-called above-mentioned reinforced plastics lining double-wall pot, for example, as Fig. 1 and shown in Figure 2, it is the outside at steel can 1, on top and flange portion (G of gas phase portion) part (L of liquid phase portion) in addition form gap 2 and establish reinforced plastic layer 3 and become can body 4, insert the detector tube 5 that is communicated with aforementioned gap 2 to the bottom surface from the top of this can body 4, though do not illustrate simultaneously, can detect dangerous article that leaks from jar 1 and both sensors of earthing water that flow into from reinforced plastic layer 3 but set, also set the detecting device of handling this sensor output at suitable position in the bottom of aforementioned detector tube 5.
The formation of reinforced plastic layer 3 can adopt various methods to carry out in the above-mentioned reinforced plastics lining double-wall pot, can enumerate so-called sandblast forming process or coating forming process as an example wherein.Promptly, this so-called sandblast forming process, be in order to increase the adhesive bonding property with reinforced plastic layer 3, the G of gas phase portion that does not need to establish gap 2 is implemented primer coating after the sand-blast finish, twine the thin resin film guarantee gap 2 usefulness at the L of liquid phase portion in addition, after the DH of end socket portion that is equivalent to aforementioned jar 1 side handles similarly, spraying glass fibre and resin, repeat this spraying process as required, be formed with the reinforced plastics lining double-wall pot of the reinforced plastic layer 3 of desired thickness.
Summary of the invention
Yet the occasion of above-mentioned conventional art has following problem.That is, the occasion of above-mentioned reinforced plastics lining double-wall pot, under high humidity environment, when the operation that forms reinforced plastic layer 3 by gap 2 was made, when ambient temperature reduced among the stock, the airborne moisture cohesion of enclosing in the gap 2 produced dewfall.And, when lining forms reinforced plastic layer 3, this reinforced plastic layer 3 is because the result that curing reaction shrinks, produce external pressure, the reinforced plastic layer 3 and the surface of jar 1 are adjacent to, so the gap 2 that forms between the surface of jar 1 and the reinforced plastic layer 3 is atomic little, as shown in Figure 5, the moisture of dewfall appears condensing everywhere in the result in the periphery of jar 1.Therefore, reinforced plastics lining double-wall pot as above-mentioned manufacturing is translucent owing to reinforced plastic layer 3, so the profile of moisture of cohesion dewfall, be rendered as the such figure S of contour line everywhere at the outer peripheral face of can body 4, have that outward appearance reduces, the problem that also reduces of commodity value simultaneously.
In addition, as the necessary inspection item of fire service law, at least at the L of liquid phase portion, there is predetermined gap 2 in above-mentioned reinforced plastics lining double-wall pot between the reinforced plastic layer 3 that jar 1 and its periphery are covered, and must confirm and prove that jar 1 is not adjacent to reinforced plastic layer 3.Exist affirmation, the proof operation in above-mentioned gap 2 to be undertaken by the additional analyzer that can detect space function on the use ultrasonic thickness indicator, specifically, utilize detection faces that the paste of glycerine etc. makes this analyzer probe with jar the surface contact, by detecting the emitted hypracoustic backward wave of this probe, obtain confirming and proof according to presenting sound or the demonstration of confirming the gap.Therefore, confirm occasion very close to each other, be not the reinforced plastics lining double-wall pot, and be considered as the single wall jar.
Yet, when the airborne moisture cohesion in the inclosure gap 2 of above-mentioned reinforced plastics lining double-wall pot produces dewfall, even confirm, prove the existence in gap 2, but the moisture of cohesion becomes obstacle, make the detection that makes a mistake of aforementioned analyzer, the result exists this analyzer not make a response, become in the necessary inspection inferior-quality problem on fire service law.
Therefore, the present invention finishes for the problem that solves above-mentioned conventional art, its purpose is to provide the reinforced plastics lining double-wall pot, even dewfall takes place in the airborne moisture cohesion in the inclosure gap of this reinforced plastics lining double-wall pot, also can prevent reliably as above-mentioned figure S, can prevent the misoperation of analyzer in checking the operation that this gap exists reliably.
In order to solve above-mentioned problem, first aspect present invention is the reinforced plastics lining double-wall pot, it is characterized in that, by the gap in the reinforced plastics lining double-wall pot of the surface-coated formation reinforced plastic layer of jar, surface coating at aforementioned jar mixes fine-grained coating, forms from the dope layer of the outstanding at least a part of aforementioned particulate in surface of this coating.
In addition, a second aspect of the present invention is the described reinforced plastics lining double-wall pot of above-mentioned first aspect, it is characterized in that at least a portion of particulate is joined with reinforced plastic layer directly or indirectly.
Again, a third aspect of the present invention is the described reinforced plastics lining double-wall pot of above-mentioned first aspect, and the mean grain size that it is characterized in that aforementioned particulate is 75~500 μ m.
In addition, a fourth aspect of the present invention is the described reinforced plastics lining double-wall pot of above-mentioned first aspect, it is characterized in that, the mean grain size of aforementioned particulate is 100~250 μ m.
In addition, a fifth aspect of the present invention is the described reinforced plastics lining double-wall pot of above-mentioned first aspect, it is characterized in that the addition of aforementioned particulate is 5~15 weight portions with respect to coating.
According to the present invention, although can provide the airborne moisture cohesion that can prevent from reliably in the reinforced plastics lining double-wall pot to enclose in the gap produce dewfall, in checking the operation that this gap exists, can prevent reliably analyzer misoperation, prevent gapped existence and on fire service law, become the inferior-quality not reinforced plastics lining double-wall pot of problem in the necessary aforementioned inspection.
Description of drawings
Fig. 1 is the longitudinal section of the reinforced plastics lining double-wall pot of expression embodiment of the present invention 1.
Fig. 2 is the cross sectional drawing of the reinforced plastics lining double-wall pot of expression embodiment of the present invention 1.
Fig. 3 is the section drawing on expression steel can surface.
Fig. 4 is the scheme drawing of expression experiment condition.
Fig. 5 is the instruction diagram of expression tradition jar.
The specific embodiment
Below, with reference to accompanying drawing embodiment of the present invention are described.
Embodiment 1
Fig. 1 and Fig. 2 are the pie graphs of the reinforced plastics lining double-wall pot of expression embodiment of the present invention 1.
This reinforced plastics lining double-wall pot, as Fig. 1 and shown in Figure 2, the outside at steel can 1, form gap 2 and establish reinforced plastic layer 3 and become can body 4, insert the detector tube 5 that is communicated with aforementioned gap 2 to the bottom surface from the top of this can body 4, simultaneously as shown in Figure 1, set both sensors of earthing water 6 that can detect jar 1 dangerous article that leaks and flow into, also set the detecting device 7 of handling these sensor 6 outputs at suitable position from reinforced plastic layer 3 in the bottom of aforementioned detector tube 5.As above-mentioned steel can 1, for example can use the cylinder of steel of diameter 2100~2400mm.
Jar 1 the occasion that above-mentioned reinforced plastics lining double-wall pot is used at the 4th class dangerous article, on top and in addition part of flange portion (G of gas phase portion) (jar liquid phase L of portion: from the jar bottom surface to the extreme higher position that adds storage liquid) form gap 2 and establish reinforced plastic layer 3, jar 1 occasion in that LPG uses must form double walled tanks along full week of 360 degree forming gap 2 and establishing reinforced plastic layer 3 basically.
In addition, when establishing reinforced plastic layer 3, because with reacting cure shrinkage, reinforced plastic layer 3 is pressed on the surface that is bonded at jar 1, the pressure of this moment depends on the diameter of jar 1, but is estimated as 0.1~0.35kg/cm 2About.Moreover reinforced plastic layer 3 forms gap 2 after being pressed on the surface that is bonded at jar 1 between the surface of reinforced plastic layer 3 and jar 1, though can not survey, estimates that gap 2 is about 1 μ m.
Yet, in this embodiment 1, by the reinforced plastics lining double-wall pot of gap in the surface-coated formation reinforced plastic layer of steel can, its formation is the fine-grained coating of surface coating mixing at aforementioned jar, forms apart from the dope layer of the outstanding aforementioned particulate of at least a portion in surface of this coating.
That is, in this embodiment, as shown in Figure 3, at the surperficial a/s thickness coating rust-resisting paint 8 of jar 1, this rust-resisting paint 8 is mixed with particulate 9.After thin resin film was twined on the surface of the steel can 1 that is coated with above-mentioned rust-resisting paint 8, spraying glass fibre and resin repeated this spraying process as required, made the reinforced plastics lining double-wall pot that desired thickness (for example, 2.5mm is thick) reinforced plastic layer 3 is arranged.
In addition, the occasion of above-mentioned reinforced plastics lining double-wall pot, when the periphery lining of steel can 1 formed reinforced plastic layer 3, the result that this reinforced plastic layer 3 is shunk produced external pressure, though reinforced plastic layer 3 is close on the surface of jar 1, has gap 2.
In addition, above-mentioned reinforced plastics lining double-wall pot, at least a portion on jar 1 surface by the particulates 9 from the outstanding at least a portion in rust-resisting paint 8 surface, guarantees between the surface of jar 1 and reinforced plastic layer 3 gapped 2.
Size as above-mentioned particulate 9, so long as can be apart from the outstanding at least a part of particulate in the surface of rust-resisting paint 8, then there is not particular determination, but when being considered as the 50-100 μ m of coating thickness of actual rust-resisting paint 8, preferably in the scope of 75-500 μ m, be more preferably in the scope of 100-250 μ m.In addition, particulate 9 need not be the ball-shaped particulate fully.
For example, when using the particulate of size 150-180 μ m, the bed thickness of rust-resisting paint 8 is the occasion of 50 μ m, surface apart from this rust-resisting paint 8 is convex, about the top 100-130 μ m of outstanding particulate 9, the bed thickness of rust-resisting paint is the occasion of 100 μ m, about outstanding 50-80 μ m.Moreover the particle diameter of above-mentioned particulate 9 uses the size Expressing of the sieve aperture width of this particulate of screening.
At this moment, above-mentioned particulate 9 particle diameters are big more, then meet the purpose that forms gap 2 between the surface of jar 1 and reinforced plastic layer 3 more, but owing to produce obstacle holding on the jar structure of dangerous article sometimes, so must the consideration grain size.Promptly, the occasion of holding LPG in the inside of above-mentioned reinforced plastics lining double-wall pot, when gap 2 is too big, because middle air layer, heat transfer efficiency variation to the jar 1 that passes through reinforced plastic layer 3, the latent heat of evaporation that LPG is supplied with is not enough, so will determine the size of above-mentioned particulate 9, makes it to guarantee about the 50-200 μ m as the ideal value in above-mentioned gap 2.Moreover, even hold the occasion of LPG,, then do not need to worry the deterioration of heat transfer efficiency as long as form gap following about 400 μ m.
Otherwise, the size of above-mentioned particulate 9 too hour, then not apart from the effect of the outstanding at least part in surface of rust-resisting paint 8.
The addition of particulate 9 in rust-resisting paint 8 even for example use the also difficult performance effect of big particulate, so be the 5-15 weight portion with respect to rust-resisting paint 100 weight portions for example, is essentially about 10 weight portions very little the time.
Material as above-mentioned particulate 9, for example, can use nylon resin or poly-vinyl resin, the organic material of ethylene-vinyl acetate resin, alkide resin etc., the particulate that preferably adopts normal temperature mechanical crushing method, special normal temperature mechanical crushing method, freezing comminuting method, chemical comminuting method etc. that fuel resistance, fastness to water organic material are pulverized.In addition, as above-mentioned particulate 9, also can use the particulate of the inorganic material formation of sand or glass etc.
As above-mentioned particulate 9, specifically, can use the powdered resin G series of products name G125-SZ of alkide resin powderization of powdered resin D series of products name D60-SZ, Tokyo Printing Ink Mfg Co., Ltd.'s system of ethylene-vinyl acetate resin powderization of powdered resin PE series of products name 1030, Tokyo Printing Ink Mfg Co., Ltd.'s system of poly-vinyl resin powderization of powdered resin SK series of products name SK-52, Tokyo Printing Ink Mfg Co., Ltd.'s system of the nylon resin powderization of Tokyo Printing Ink Mfg Co., Ltd.'s system for example.
Yet, the present invention exists in the operation in gap in surface and the reinforced plastic layer 3 of checking jar 1, intend preventing reliably because the dewfall of moisture and analyzer carries out misoperation, although exist the gap on fire service law, to become inferior-quality improper problem in the necessary aforementioned inspection.Therefore, the inventor to use with the iron plate of jar 1 same material is compound and the reinforced plastics plate of the material system that reinforced plastic layer 3 is same, to situation that has water therebetween and the situation that does not have water, the action of checking ultrasonic device (パ Na メ ト 25DC type), there is not the occasion of water in the result between iron plate and reinforced plastics plate, 5 detections are gapped in measuring for 5 times, and between iron plate and reinforced plastics plate, have an occasion of water, do not detect the gap 5 times in measuring for 5 times.In addition, even increasing the thickness of reinforced plastics, this result detects too.
Below, the present inventor has made (1)-(8) reinforced plastics lining double-wall pot, promptly (1) only is coated with the jar of rust-resisting paint 8 on the surface of the steel can 1 of diameter 600mm (below, same), (2) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 20 μ m nylon system particulate 9 coating jar, (3) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 50 μ m nylon system particulate 9 coating jar, (4) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 75 μ m nylon system particulate 9 coating jar, (5) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 100 μ m nylon system particulate 9 coating jar, (6) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 150 μ m nylon system particulate 9 coating jar, (7) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 200 μ m nylon system particulate 9 coating jar, (8) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 500 μ m nylon system particulate 9 coating jar.Particulate 9 be coated with dosage, set 10 weight portions for respect to rust-resisting paint 100 weight portions, in addition, the thickness of rust-resisting paint 8 is about about 50 μ m.
In the gap 2 of this reinforced plastics lining double-wall pot, by hole that is located at the side and the feasible pipe that is communicated with this hole in inboard that is fixed on jar 1, inject water W10ml as shown in Figure 4, use ultrasonic thickness gauge that any part of this jar is measured 30 times, and carry out the experiment of the outward appearance of Visual Confirmation jar.
Above-mentioned result of experiment is shown in following table 1.
Table 1
Rust-resisting paint Coating+particulate 20 μ m Coating+particulate 50 μ m Coating+particulate 75 μ m Coating+particulate 100 μ m Coating+particulate 150 μ m Coating+particulate 200 μ m Coating+particulate 500 μ m
Ultrasonic device misoperation ratio 29/30 18/30 8/30 0/30 0/30 0/30 0/30 0/30
General survey Produce the contour line figure Generating unit is divided figure Generating unit is divided figure Do not produce figure Do not produce figure Do not produce figure Do not produce figure Do not produce figure
Can be clear that by this table 1, coating is mixed with the occasion of reinforced plastics lining double-wall pot of coating of the particulate 9 of maximum particle 75 μ m, 100 μ m, 150 μ m, 200 μ m and 500 μ m in the rust-resisting paint 8, it is 0 time that the misoperation of ultrasonic thickness gauge produces, and the outward appearance of jar does not have to produce contour nemaline figure because of the water that injects yet.
On the contrary, only be coated with the occasion of rust-resisting paint 8, reach the occasion of the reinforced plastics lining double-wall pot of the coating of the particulate 9 of mixing maximum particle 20 μ m, 50 μ m in the coating rust-resisting paint 8, the number of times that the misoperation of ultrasonic thickness gauge produces is respectively 29 times, 18 times, 8 times, jar outward appearance also confirm to have the generation of the contour threadlike graph that the water of injection causes, or produce a part of figure.
In addition, generation and the disappearance thereof of present inventor in order at length to observe the contour line figure repeated experiment again.Promptly, prepared the jar of (9)-(12): (9) only are coated with the jar of rust-resisting paint 8 on the surface of the same steel can 1 that uses with above-mentioned experiment, (10) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 50 μ m nylon system particulate 9 coating jar, (11) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 150 μ m polyethylene system particulate 9 coating jar, (12) in the surface of steel can 1 coating rust-resisting paint 8, be mixed with maximum particle 500 μ m nylon system particulate 9 coating jar, establishing reinforced plastic layer behind the lining PET film on the rust-resisting paint layer, make the reinforced plastics lining double-wall pot.The addition of particulate 9 is set 10 weight portions for respect to rust-resisting paint 100 weight portions, and in addition, the thickness of reinforced plastic layer is about about 2.5mm.
In the gap 2 of this reinforced plastics lining double-wall pot, make the pipe that is communicated with this hole inject water by hole that is located at the side and the inboard that is fixed on jar 1.Inject water from the such height of the hydraulic pressure that reaches about 300mm, observe time of injecting till the 20g water in detail and from the generation and the disappearance thereof of the contour threadlike graph that injects beginning.
The time of injecting 20g water is as follows.
(9) jar 2 minutes
(10) jar 1 minute
(11) jar 5.0 seconds
(12) jar 0.5 second
From the generation of the contour threadlike graph that injects beginning and disappear as follows.
(9) jar is that the center utilizes capillarity water to be formed uniformly the moisture film expansion with the hole, does not disappear.
(10) though jar is that the center utilizes the expansion equably temporarily of capillarity water with the hole, along with the time become point-like through moisture film, disappeared in about 5 minutes.
(11) jar does not form moisture film, from just forming point-like at first, disappears soon.
(12) jar does not form moisture film, from just forming at first big point-like, meanwhile promptly flows downwards.
The particle diameter that changes particulate 9 repeats above-mentioned experiment, the result, and particle diameter is more little, produces moisture film significantly more and be difficult to disappear, and particle diameter is big more, becomes point-like more, and size meanwhile increases, and the speed of Liu Donging also increases downwards.
In addition, use is coated with the jar of the coating of the polyethylene system particulate 9 that is mixed with maximum particle 150 μ m in the rust-resisting paint 8 on the surface of the steel can 1 of above-mentioned (11), and the addition that changes particulate 9 repeats above-mentioned experiment, the result below occurring.
3% generating unit is divided figure
6% does not produce figure
The viscosity of 15% coating rises because of the interpolation of micropowder
20% viscosity height is covered with paint, lacquer, colour wash, etc. operational difficulty
Like this, by be mixed with the rust-resisting paint 8 of particulate 9 in the coating of the surface of steel can 1, between this steel can 1 and reinforced plastic layer 3, can guarantee predetermined gap 2, can prevent that ultrasonic thickness gauge from producing misoperation, enclose the occasion of the moisture cohesion in the gap 2 simultaneously, also can prevent to produce contour threadlike graph.

Claims (4)

1. reinforced plastics lining double-wall pot, it is characterized in that, surface coating at aforementioned jar mixes fine-grained coating, form dope layer, described dope layer is from least a portion of the outstanding aforementioned particulate in surface of this coating, the mean grain size of aforementioned particulate is 75-500 μ m, thereby forms the reinforced plastics lining on the surface of jar by the gap lining.
2. the described reinforced plastics lining double-wall pot of claim 1 is characterized in that at least a portion of particulate is joined with reinforced plastic layer directly or indirectly.
3. the described reinforced plastics lining double-wall pot of claim 1 is characterized in that, the mean grain size of aforementioned particulate is 100-250 μ m.
4. the described reinforced plastics lining double-wall pot of claim 1 is characterized in that, the addition of aforementioned particulate is 5-15 weight portions with respect to 100 weight portion coating.
CN200510066752A 2004-06-18 2005-04-27 Reinforced plastic lining double-wall pot Expired - Fee Related CN100595113C (en)

Applications Claiming Priority (2)

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JP2004181231 2004-06-18
JP2004181231A JP4332075B2 (en) 2004-06-18 2004-06-18 Method for manufacturing reinforced plastic lining double shell tank

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CN1709773A CN1709773A (en) 2005-12-21
CN100595113C true CN100595113C (en) 2010-03-24

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6474252B2 (en) * 2014-12-25 2019-02-27 玉田工業株式会社 Method for manufacturing reinforced plastic lining double shell tank
JP7417182B2 (en) * 2019-03-06 2024-01-18 タマダ株式会社 Vertical installation structure of double shell tank

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408420A (en) * 1975-12-24 1983-10-11 Harry Haase Double walled underground storage containers for fluids such as heating oil which endanger the ground water and a method for their manufacture
US5224621A (en) * 1992-08-04 1993-07-06 Owens-Corning Fiberglas Technology, Inc. Double wall underground storage tank
EP0760346A1 (en) * 1995-09-04 1997-03-05 Imaharu Kasei Co., Ltd. FRP double-wall tank and producing method therefor
CN1482052A (en) * 2002-09-09 2004-03-17 大钟机械工业株式会社 Double wall oil tank and the leak detecting warning device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408420A (en) * 1975-12-24 1983-10-11 Harry Haase Double walled underground storage containers for fluids such as heating oil which endanger the ground water and a method for their manufacture
US5224621A (en) * 1992-08-04 1993-07-06 Owens-Corning Fiberglas Technology, Inc. Double wall underground storage tank
EP0760346A1 (en) * 1995-09-04 1997-03-05 Imaharu Kasei Co., Ltd. FRP double-wall tank and producing method therefor
CN1482052A (en) * 2002-09-09 2004-03-17 大钟机械工业株式会社 Double wall oil tank and the leak detecting warning device

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CN1709773A (en) 2005-12-21
JP4332075B2 (en) 2009-09-16

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