JPH10300620A - Leak detector for lining tank - Google Patents

Leak detector for lining tank

Info

Publication number
JPH10300620A
JPH10300620A JP10571697A JP10571697A JPH10300620A JP H10300620 A JPH10300620 A JP H10300620A JP 10571697 A JP10571697 A JP 10571697A JP 10571697 A JP10571697 A JP 10571697A JP H10300620 A JPH10300620 A JP H10300620A
Authority
JP
Japan
Prior art keywords
lining
leak detection
tank
detection groove
leak
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
JP10571697A
Other languages
Japanese (ja)
Inventor
Mitsuhisa Takeshita
光久 竹下
喜美孝 ▲吉▼成
Kimitaka Yoshinari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Nuclear Engineering Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Nuclear Engineering Co Ltd
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 Hitachi Ltd, Hitachi Nuclear Engineering Co Ltd filed Critical Hitachi Ltd
Priority to JP10571697A priority Critical patent/JPH10300620A/en
Publication of JPH10300620A publication Critical patent/JPH10300620A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To identify a leaky point while facilitating formation of a leak detection groove by making the leak detection groove in a sealing plate or a lining material itself. SOLUTION: A sealing plate 22 having a leak detection groove 21 is set to envelop the welding line 41 of lining plates 4 while ensuring watertightness of a lining tank by means of a seal welding 23 and a hermetically sealed leak detection groove 21 is formed. Since the leak detection groove 21 is made in the sealing plate 22 itself, a butt welding single joint using a backing metal can be employed at the weld line 41 between the lining plates 4 or the weld line between the lining plate 4 and a buried metal. Consequently, the quality of welded part is enhanced while shortening the time required for performing the welding and enhancing the quality of welded part.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ライニング槽のリ
ーク検出装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leak detecting device for a lining tank.

【0002】[0002]

【従来の技術】従来のライニング槽のリーク検出装置
で、ライニング板を境にしてコンクリート躯体に埋設せ
ずにリーク検知溝を形成する構造としては、特公昭56−
118698号公報(ライニング槽)に示される例として、図
3に示す構造がある。
2. Description of the Related Art A conventional leak detecting device for a lining tank has a structure in which a leak detecting groove is formed without being buried in a concrete body with a lining plate as a boundary.
As an example shown in Japanese Patent Publication No. 118698 (lining tank), there is a structure shown in FIG.

【0003】図3は、図2に示されるライニング槽1の
ライニング溶接部のリーク検知溝構造の詳細を示すもの
である。
FIG. 3 shows details of a leak detecting groove structure of a lining welded portion of the lining tank 1 shown in FIG.

【0004】図2に示す、ライニング槽1はコンクリー
ト躯体2に埋設された埋込金物(ライニング下地材)3
とその表面に設置されるライニング板4とシール板22
から構成されており、ライニング槽1に内包する液体4
1はシール板22によりシールされ、強度はコンクリー
ト躯体2により保たれる構造となっている。
[0004] As shown in FIG. 2, a lining tank 1 is an embedded metal (lining base material) 3 embedded in a concrete frame 2.
And lining plate 4 and sealing plate 22 installed on the surface thereof
And the liquid 4 contained in the lining tank 1
1 is sealed by a seal plate 22, and the strength is maintained by the concrete frame 2.

【0005】本従来例におけるリーク検知構造の詳細
は、図3に示され、コンクリート躯体2に埋設された埋
込金物(ライニング下地材)3にライニング板4を隅肉
溶接20し、さらにその上にシール板22をシール溶接
23する構造とし、密封されたリーク検知溝21を形成
し、このリーク検知溝21にリーク検知管(図面に示さ
ず)及び、加圧気体移送管11にコンプレッサ12を接
続している。
FIG. 3 shows the details of the leak detecting structure in the prior art example. The lining plate 4 is welded to a buried metal (lining base material) 3 embedded in a concrete frame 2 by a fillet welding 20, and furthermore, The seal plate 22 has a structure in which a seal welding 23 is formed, and a sealed leak detecting groove 21 is formed. The leak detecting groove 21 is provided with a leak detecting pipe (not shown), and the compressed gas transfer pipe 11 is provided with a compressor 12. Connected.

【0006】本例では、密封されたリーク検知溝21を
形成するために、ライニング板4を埋込金物(ライニン
グ下地材)3にある幅を確保した、隅肉溶接20をライ
ニング板4の全線にわたって実施する必要があり、従来
から実施されていた、ライニング板4同士の裏あて金を
使用する突き合わせ片側溶接継手が実施されず、溶接部
の設計として、一般的に溶接継手効率の信頼度のランク
付け上,下位の隅肉重ね溶接継手を全線にわたって採用
することとなる。また、図4,図5に示すように、ライ
ニング槽としてライニングの一部を構成する埋込金物4
2におけるリーク検知溝21の形成にあっても同様に、
隅肉重ね溶接継手20aを採用した、リーク検知溝21
の形成することとなる。
In this embodiment, in order to form a sealed leak detection groove 21, the lining plate 4 has a certain width in the embedding metal (lining base material) 3, and the fillet weld 20 is formed on the entire line of the lining plate 4. Butt-side welded joint using a backing between the lining plates 4, which has been conventionally implemented, is not implemented. As a design of the welded portion, the reliability of the welded joint efficiency is generally high. In terms of ranking, lower fillet lap welded joints will be adopted over the entire line. In addition, as shown in FIGS. 4 and 5, an embedded metal part 4 forming a part of the lining as a lining tank is provided.
Similarly, in the formation of the leak detection groove 21 in FIG.
Leak detection groove 21 employing fillet lap welding joint 20a
Is formed.

【0007】また、この場合、溶接線20が従来の突き
合わせ片側溶接継手に比較して倍増し、溶接施工管理並
びに、品質管理に係る時間も倍増し、建設作業の遅延の
恐れを有することとなる。
Further, in this case, the welding wire 20 is doubled as compared with the conventional one-sided butt-welded joint, and the time required for the welding work management and quality control is also doubled, which may cause a delay in the construction work. .

【0008】その他、溶接線により密封された、リーク
検知溝を形成した実施例として、上記特許公報のその他
の実施例を図6に示す。この場合は、リーク検知溝21
をライニング板4の裏面(コンクリート躯体2側)に形
成するため、コンクリート躯体2を施工(コンクリート
を打ち込む作業)する以前にライニング板4と埋込金物
(ライニング下地材)3及びライニング板4裏面に設定
されるシール板22とを溶接24しておく必要があり、
建設工法(コンクリート躯体を施工した後に、コンクリ
ート躯体に埋設されたライニング下地材に、ライニング
板を溶接する工法)によっては、本図に示すリーク検知
構造を適用できないライニング槽が生じる。
FIG. 6 shows another embodiment of the above-mentioned patent publication as another embodiment in which a leak detection groove sealed with a welding wire is formed. In this case, the leak detection groove 21
Is formed on the back surface of the lining plate 4 (on the side of the concrete skeleton 2), so that the lining plate 4 and the embedded hardware (lining base material) 3 and the back surface of the lining plate 4 are formed before the concrete skeleton 2 is constructed (concreting work). It is necessary to weld 24 with the set seal plate 22,
Depending on the construction method (method of welding the lining plate to the lining base material embedded in the concrete skeleton after the construction of the concrete skeleton), a lining tank to which the leak detection structure shown in this figure cannot be applied occurs.

【0009】また、溶接線により密封された、リーク検
知溝を形成した実施例として、前述した図6の構造をさ
らに工夫し、コンクリート躯体を施工した後に、コンク
リート躯体に埋設されたライニング下地材に、ライニン
グ板を溶接する工法でも適用できるようにした図7に示
す、特公昭57−148297号公報(金属板ライニング貯槽液
槽)の例がある。本例では、前述した隅肉溶接を採用し
ない構造で、突き合わせ片側溶接41を用いた構造では
あるが、リーク検知溝21を形成するにあたり、コンク
リート躯体2とライニング板4との間にシールド板5を
コンクリート躯体2の露出面全面に敷設する必要があ
り、この設定に多くの作業時間と多くの資材を必要とす
る。
Further, as an embodiment in which a leak detection groove sealed with a welding wire is formed, the above-described structure of FIG. 6 is further devised, and after a concrete skeleton is constructed, the structure is applied to a lining base material embedded in the concrete skeleton. FIG. 7 shows an example of Japanese Patent Publication No. 57-148297 (metal plate lining storage tank) which can be applied to a method of welding a lining plate. In the present embodiment, the above-mentioned structure does not employ the fillet welding and employs the one-sided butt welding 41. However, when forming the leak detection groove 21, the shield plate 5 is provided between the concrete frame 2 and the lining plate 4. Must be laid on the entire exposed surface of the concrete frame 2, and this setting requires a lot of work time and a lot of materials.

【0010】[0010]

【発明が解決しようとする課題】本発明の目的は、ライ
ニング槽の溶接部の信頼性を向上させるとともに、万一
のライニング槽の溶接部からの漏えいに際し、漏えい箇
所の同定が可能で、かつ漏えい検溝の形成を容易とす
る、ライニング槽のリーク検出装置を提供することにあ
る。
SUMMARY OF THE INVENTION An object of the present invention is to improve the reliability of a welded portion of a lining tub and to identify a leaked portion in the event of leakage from a welded portion of a lining tub, and An object of the present invention is to provide a lining tank leak detection device that facilitates formation of a leak detection groove.

【0011】[0011]

【課題を解決するための手段】本発明のリーク検出装置
は、従来、コンクリート躯体に埋設された埋込金物(ラ
イニング下地材)に、ライニング板を隅肉溶接し、さら
にその上にシール板を溶接する構造とし密封されたリー
ク検知溝を、埋込金物(ライニング下地材)を裏あて金
とするライニング板同士の突き合わせ溶接とするため
に、シール板あるいはライニング下地材自身に、リーク
検知溝を有した構造とするものである。また、さらに
は、前記に加えてライニング槽の貯留水の静水頭以上の
圧力(気圧)を供給できる加圧ラインと圧力計及び漏え
い検出モニタからなる装置構成とするものである。
A leak detecting device according to the present invention is conventionally provided by welding a fillet of a lining plate to an embedded metal (lining base material) buried in a concrete body, and further forming a seal plate thereon. A leak detection groove is formed on the seal plate or the lining base material itself so that the sealed leak detection groove with the structure to be welded is butt welded between the lining plates with the embedded metal (lining base material) as backing metal. It has a structure having. Further, in addition to the above, the apparatus is constituted by a pressure line capable of supplying a pressure (atmospheric pressure) higher than the hydrostatic head of the stored water in the lining tank, a pressure gauge, and a leak detection monitor.

【0012】これにより、コンクリート躯体に埋設せず
に密封したリーク検知溝を形成でき、ライニング板同士
の突き合わせ片側溶接を可能とし、また、リーク検知溝
へ、加圧することが可能となる。
Thus, a leak detection groove can be formed which is sealed without being buried in the concrete skeleton, so that the lining plates can be butt-welded on one side and pressure can be applied to the leak detection groove.

【0013】[0013]

【発明の実施の形態】本発明の一実施例を図により説明
する。図1は本発明によるライニング槽の一部分断面を
示した斜視図である。図8は、図1の部分平面図を示す
もので、ライニング板4同士の溶接線41を包絡するよ
うに、リーク検知溝21を有するシール板22を設置し
シール溶接23により、ライニング槽の水密性を確保す
ると共に、密封したリーク検知溝21を形成している。
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a partial cross section of a lining tank according to the present invention. FIG. 8 is a partial plan view of FIG. 1, in which a sealing plate 22 having a leak detection groove 21 is installed so as to envelop a welding line 41 between the lining plates 4, and a watertightness of the lining tank is formed by seal welding 23. The leak detection groove 21 is formed while ensuring the sealing performance.

【0014】図9は、図8のA−A方向から見た断面図
を示すもので、コンクリート躯体2に埋設されたライニ
ング下地材3に、ライニング板4同士の溶接線41の位
置で断面した形状を示す。
FIG. 9 is a cross-sectional view taken along the line AA of FIG. 8, and shows a cross section of the lining base material 3 embedded in the concrete frame 2 at the position of the welding line 41 between the lining plates 4. Show the shape.

【0015】図10は、図8のB−B方向から見た断面
図を示すもので、上述のように、ライニング板4同士の
溶接線41とシール溶接23とにより、密封されたリー
ク検知溝21へ、ライニング槽の水密性の健全性を確認
するために加圧する加圧ラインもしくは、漏えい液の収
集のための漏えい検知ラインを形成する部分を示す箇所
での断面図を示すもので、ライニング板4を本例では、
丸く切り込みを入れて、リーク検知溝21と、加圧配管
(又は、漏えい検出配管)11とを連絡している構造を
示している。
FIG. 10 is a sectional view taken along the line BB in FIG. 8, and as described above, the leak detection groove sealed by the welding line 41 between the lining plates 4 and the seal welding 23. 21 is a cross-sectional view of a part showing a part forming a pressurizing line for pressurizing the watertightness of the lining tank to check the watertightness of the lining tank or a leak detection line for collecting leaked liquid. In this example, the plate 4 is
A structure is shown in which a cut is made round to connect the leak detection groove 21 and the pressurized pipe (or leak detection pipe) 11.

【0016】図11は、ライニング板4とライニング槽
1内に設置され配管等のための埋込金物42の溶接線4
1aに係わるリーク検知構造を示すもので、ライニング
板4同士の溶接線41を包絡したシール板22と同様
に、シール板22aを当該埋込金物42廻りに設置し、
埋込金物廻りのリーク検知溝21aを形成し、ライニン
グ板4同士の溶接線41を包絡したシール板22と、埋
込金物廻りのシール板22aを接続し、リーク検知溝2
1を接続した構造としている(本図には記載ない)。
FIG. 11 shows a welding line 4 between the lining plate 4 and the metal fitting 42 installed in the lining tank 1 for piping or the like.
1A shows a leak detection structure relating to 1a, in the same manner as a seal plate 22 enclosing a welding line 41 between lining plates 4, a seal plate 22a is installed around the embedded metal 42,
A leak detection groove 21a around the embedded metal part is formed, and a seal plate 22 enclosing a welding line 41 between the lining plates 4 and a seal plate 22a around the embedded metal part are connected to form a leak detection groove 2a.
1 (not shown in the figure).

【0017】図8から図11にかけて述べた様に、本発
明のライニング槽1では、シール板22自身にリーク検
知溝21を設けることにより、ライニング板4同士の溶
接線41もしくは、ライニング板4と埋込金物42との
溶接線41aの溶接継手形状を、裏あて金を使用する突
き合わせ片側溶接継手とでき、溶接部の品質向上、並び
に溶接施工,品質管理に係わる時間の短縮が可能とな
る。
As described with reference to FIGS. 8 to 11, in the lining tank 1 of the present invention, by providing the leak detection groove 21 in the seal plate 22 itself, the welding line 41 between the lining plates 4 or the lining plate 4 The shape of the weld joint of the welding line 41a with the embedded metal member 42 can be a butt-side one-side weld joint using a backing metal, so that the quality of the welded portion can be improved and the time required for welding and quality control can be reduced.

【0018】さらに、従来の漏えい検査と同様に、加圧
ラインにより、シール溶接部を加圧することを可能と
し、当該シール溶接部の健全性の確認を、ライニング槽
内に水を充満させて、漏えい検知管に漏えい液が流れて
来ないことを確認する水張り試験の前に行えることか
ら、万一の施工中の補修対応が容易に実施でき、かつ従
来構造のシール板の幅を小さくできることから、シール
板に作用する荷重が小さくなり、シール溶接部の溶接脚
長を小さくできる。
Further, similarly to the conventional leak inspection, it is possible to pressurize the seal welding portion by the pressurizing line, and confirm the soundness of the seal welding portion by filling the lining tank with water. Since it can be performed before the water filling test to confirm that the leak liquid does not flow into the leak detection tube, repair work during the construction can be easily performed and the width of the seal plate of the conventional structure can be reduced. Thus, the load acting on the seal plate is reduced, and the length of the welding leg at the seal welded portion can be reduced.

【0019】本発明のその他の一実施例を、図12に示
す。本構造は、リーク検知溝21をライニング下地材3
に設けたもので、シール板22をリーク検知溝21を覆
うようにライニング下地材3上でライニング板4と裏あ
て金を使用する突き合わせ片側溶接41により溶接した
構造としたもので、前述の本発明の実施例と同様に、溶
接部の品質を向上させると共に、さらに、ライニング板
4と同一面にて仕上げができ、原子力施設で、除染が必
要なライニング槽では、その除染作業効率の向上が図れ
る。
Another embodiment of the present invention is shown in FIG. In this structure, the leak detection groove 21 is
The seal plate 22 is formed by welding the lining plate 4 and the lining plate 4 on the lining base material 3 by a one-sided butt welding 41 using a backing metal so as to cover the leak detection groove 21. As in the embodiment of the present invention, while improving the quality of the welded portion, it can be further finished on the same surface as the lining plate 4, and in a lining tank that requires decontamination at a nuclear facility, the decontamination work efficiency is improved. Improvement can be achieved.

【0020】図13,図14の実施例は、運転中の水張
り状態での、漏えい確認を実施する例を示すもので、加
圧ライン11で、リーク検知溝21(本図には記載な
い)を通じて、静水頭圧以上の圧力(水であれば、水深
10m以下であれば、1〜2kg/cm2 程度の圧力)を付
加することにより、使用中における漏えいバウンダリー
溶接部の健全性の確認、並びに万一の漏えい時における
漏えい位置の同定が、漏えい部からの気泡43の発生を
テレビカメラ44により確認することにより、容易に可
能とできる。
The embodiment shown in FIGS. 13 and 14 shows an example in which a leak is confirmed in a water-filled state during operation. A leak detection groove 21 (not shown in FIG. 13) is formed on the pressurizing line 11. Through the addition of a pressure higher than the hydrostatic head pressure (in the case of water, if the water depth is 10 m or less, a pressure of about 1 to 2 kg / cm 2 ), the integrity of the leaky boundary weld during use is confirmed, In addition, the position of the leak at the time of the leak can be easily identified by confirming the generation of the bubble 43 from the leak portion by the television camera 44.

【0021】[0021]

【発明の効果】本発明のリーク検知装置によれば、容易
にリーク検知構造を形成でき、溶接部の品質をおとすこ
となく、従来例に比べ、ライニング槽の強度バウンダリ
ー溶接部の溶接線の長さを半減でき、当該溶接部の施
工,品質確認作業を減らすことができ、万一のライニン
グ槽からの漏えいにおいても、漏えい箇所の同定が可能
なライニング槽のリーク検知装置を提供できる。
According to the leak detecting device of the present invention, the leak detecting structure can be easily formed, and the length of the welding line of the strength boundary weld of the lining tank can be made longer than that of the conventional example without deteriorating the quality of the weld. Therefore, it is possible to provide a leak detecting device for a lining tank capable of identifying the leaked part even in the event of a leak from the lining tank even if the welding from the lining tank can be performed.

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

【図1】本実施例の一例を示した部分説明図。FIG. 1 is a partial explanatory view showing an example of the present embodiment.

【図2】従来例を示した断面図。FIG. 2 is a sectional view showing a conventional example.

【図3】従来例を示した断面図。FIG. 3 is a sectional view showing a conventional example.

【図4】従来例を示した取り合いの詳細を示す断面図。FIG. 4 is a cross-sectional view showing details of an arrangement showing a conventional example.

【図5】従来例を示した取り合いの詳細を示す断面図。FIG. 5 is a cross-sectional view showing details of a connection showing a conventional example.

【図6】従来例のその他の実施例を示す断面図。FIG. 6 is a sectional view showing another embodiment of the conventional example.

【図7】従来例のその他の実施例を示す断面図。FIG. 7 is a sectional view showing another embodiment of the conventional example.

【図8】本発明の一実施例を示す平面図。FIG. 8 is a plan view showing one embodiment of the present invention.

【図9】図7のA−A方向から見た断面図。FIG. 9 is a cross-sectional view as viewed from the AA direction in FIG. 7;

【図10】図7のB−B方向から見た断面図。FIG. 10 is a cross-sectional view as seen from the BB direction in FIG. 7;

【図11】本発明の一実施例の取り合いの詳細を示す断
面図。
FIG. 11 is a cross-sectional view showing details of the arrangement of an embodiment of the present invention.

【図12】本発明の他の実施例を示す断面図。FIG. 12 is a sectional view showing another embodiment of the present invention.

【図13】本発明の全体システムを示す一実施例の説明
図。
FIG. 13 is an explanatory diagram of one embodiment showing the entire system of the present invention.

【図14】本発明の全体システムを示す一実施例の説明
図。
FIG. 14 is an explanatory diagram of one embodiment showing the entire system of the present invention.

【符号の説明】[Explanation of symbols]

1…ライニング槽、2…コンクリート躯体、3…埋込金
物、4…ライニング板、21…リーク検知溝、22…シ
ール板、23…シール溶接、41…ライニング板同士の
溶接線、42…埋込金物。
DESCRIPTION OF SYMBOLS 1 ... Lining tank, 2 ... Concrete skeleton, 3 ... Embedded hardware, 4 ... Lining plate, 21 ... Leak detection groove, 22 ... Seal plate, 23 ... Seal welding, 41 ... Welding line between lining plates, 42 ... Embedding hardware.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】コンクリート製貯槽の表面に金属ライニン
グを施し内張りされるライニング槽の、金属ライニング
板同士の溶接部及びライニング槽としてライニングの一
部を構成する埋込金物等とライニング板の溶接部におい
て、上記溶接部から貯留液の漏えいを検知するリーク検
知溝を構成するにあたり、ライニングの内側にシール板
を設け、密封された検知溝から構成されるライニング槽
で、上記シール板にリーク検知溝を設けたことを特徴と
するライニング槽のリーク検出装置。
1. A welded portion between metal lining plates of a lining tank which is provided with a metal lining on a surface of a concrete storage tank and a welded portion between an embedded metal part forming a part of the lining as a lining tank and a lining plate. In forming a leak detection groove for detecting leakage of the stored liquid from the welded portion, a seal plate is provided inside the lining, and a lining tank composed of a sealed detection groove is provided in the seal plate. A leak detecting device for a lining tank, comprising:
【請求項2】請求項1において、上記リーク検知溝に気
体による加圧装置並びに圧力モニタ装置を設けたライニ
ング槽のリーク検出装置。
2. A leak detecting device for a lining tank according to claim 1, wherein a gas pressurizing device and a pressure monitoring device are provided in said leak detecting groove.
【請求項3】請求項1において、密封された上記リーク
検知溝を構成する部材を、上記金属ライニング板を支持
するライニング下地材とライニング板及び、シール板と
したライニング槽で、上記ライニング下地材にリーク検
知溝を設けたライニング槽のリーク検出装置。
3. The lining base material according to claim 1, wherein the member forming the sealed leak detection groove is a lining base material and a lining plate supporting the metal lining plate, and a lining tank having a sealing plate. A lining tank leak detector with a leak detection groove in the lining.
【請求項4】請求項1または請求項3において、上記リ
ーク検知溝の形成加工法として、圧延成形によるライニ
ング槽のリーク検出装置。
4. A leak detecting device for a lining tank according to claim 1, wherein said leak detecting groove is formed by rolling.
JP10571697A 1997-04-23 1997-04-23 Leak detector for lining tank Pending JPH10300620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10571697A JPH10300620A (en) 1997-04-23 1997-04-23 Leak detector for lining tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10571697A JPH10300620A (en) 1997-04-23 1997-04-23 Leak detector for lining tank

Publications (1)

Publication Number Publication Date
JPH10300620A true JPH10300620A (en) 1998-11-13

Family

ID=14415068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10571697A Pending JPH10300620A (en) 1997-04-23 1997-04-23 Leak detector for lining tank

Country Status (1)

Country Link
JP (1) JPH10300620A (en)

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