JPS63281035A - Leak detector for liner - Google Patents

Leak detector for liner

Info

Publication number
JPS63281035A
JPS63281035A JP62115810A JP11581087A JPS63281035A JP S63281035 A JPS63281035 A JP S63281035A JP 62115810 A JP62115810 A JP 62115810A JP 11581087 A JP11581087 A JP 11581087A JP S63281035 A JPS63281035 A JP S63281035A
Authority
JP
Japan
Prior art keywords
liner
shaped
leak detection
channel
detection device
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
JP62115810A
Other languages
Japanese (ja)
Inventor
Toru Maruyama
亨 丸山
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62115810A priority Critical patent/JPS63281035A/en
Publication of JPS63281035A publication Critical patent/JPS63281035A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Examining Or Testing Airtightness (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To securely preclude the infiltration of underground water by welding channel members to end parts of liner plates, and performing fillet welding to the upper end of section steel and forming a channel for leak detection. CONSTITUTION:One-side end parts of C-shaped channel members 11 are welded to the reverse surfaces of the liner plates 2 by welding zones 12. On the other hand, I-shaped steel 6 is positioned and fixed at a specific position of a concrete base 1. Then, the C-shaped channel members 11 and 11 which are welded to the liner plates 2 are inserted into a groove-shaped space formed over the I- shaped steel 6 and fixed to the surface of the I-shaped steel 6 by welding zones 15 and 15, and the liner plates 2 are fixed to anchors. Then a lid plate 16 is mounted on the C-shaped channels 11 and 11 on both sides and fixed by welding zones 17 and 17. Thus, the channel 18 of enclosed structure for leak detection is formed. Consequently, the infiltration of the underground water is precluded completely, so leaks from the liner plates 2 and securely detected.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、原子力発電所等において使用されるライナ一
槽等のライナーからの漏洩を検出する漏洩検知装置に関
する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a leakage detection device for detecting leakage from a liner such as a liner tank used in a nuclear power plant or the like.

(従来の技術) 原子力発電所においては、原子炉建屋内で発生する排水
中に放射性廃棄物が含まれている可能性があるため、原
子炉建屋内で発生する排水を−Hすンブタンク等に集め
、放射能を低減させた後、排出するようにしている。
(Conventional technology) At nuclear power plants, the wastewater generated inside the reactor building may contain radioactive waste, so the wastewater generated inside the reactor building is stored in a -H tank, etc. It is collected and discharged after reducing its radioactivity.

このようなタンクとしては、通常、コンクリート基礎中
に構築され、その内面にステンレス鋼板等をライニング
したライナ一槽が使用されるが、この種のライナ一槽は
放射性流体の拡散防止のため、高い水密性や耐漏洩性が
必要とされる。
Such a tank is usually constructed with a liner built into a concrete foundation and lined with stainless steel plates, etc., but this type of liner is expensive to prevent radioactive fluid from dispersing. Watertightness and leak resistance are required.

そこで、従来は第4図に示すように、コンクリート1の
表面に内張すされるライナープレート2を裏あて金3を
介して突合わせ溶接し、上記ライナープレート2.2の
接合面、すなわち溶接部4の耐漏洩性(シール性)を確
認するために、−・対の下地プレート5.5を表面に溶
接したI形鋼6を、それらによって形成される溝状チャ
ンネル7が溶接部4の裏面を覆うように配置し、これら
の渦状チャンネル7内に連通するように漏洩検知用配管
8を埋設し、この配管から流出する水の有無を検出する
ことによりライナ一槽内からの漏洩水の有無を検知する
ようにしている。
Therefore, conventionally, as shown in FIG. 4, the liner plate 2 lined on the surface of the concrete 1 is butt-welded via the backing metal 3, and the joint surface of the liner plate 2.2, that is, the welded part. In order to check the leakage resistance (sealability) of 4, an I-beam 6 with a pair of base plates 5. A leakage detection piping 8 is buried so as to communicate with these spiral channels 7, and by detecting the presence or absence of water flowing out from this piping, the presence or absence of leakage from one liner tank can be determined. We are trying to detect this.

(発明が解決しようとする問題点) しかしながら、上述のように構成した従来の漏洩検知装
置では下地プレート5とライナープレート2とを密閉構
造とすることが不可能である。
(Problems to be Solved by the Invention) However, in the conventional leak detection device configured as described above, it is impossible to form the base plate 5 and the liner plate 2 into a sealed structure.

また、ライナ一槽が原子力発電設備の地下部外壁近傍に
設置される場合は、溝状チャンネル7内へ地下水が侵入
することが多いが、このような場合には、ライナ一槽内
からの流体と地下水とを区別するために、検出点に放射
線モニターを設(iづる等の必要があった。
Furthermore, when a liner tank is installed near the outer wall of the underground part of a nuclear power generation facility, groundwater often intrudes into the groove-like channel 7, but in such cases, fluid from inside the liner tank It was necessary to install radiation monitors at the detection points in order to distinguish between radioactivity and groundwater.

また特に、地下水の侵入の危険性が大きい部位には第5
図に示すように、下地プレート5.5を■形鋼6.6間
に全面にわたって固設し、二重ライナー構造とする方法
も採られているが、大型ライナ一槽の場合には物惜が増
大し、工数も大きくなるという欠点があった。
Particularly, in areas where there is a high risk of groundwater intrusion,
As shown in the figure, a method of fixing the base plate 5.5 over the entire surface between the section steel 6.6 and creating a double liner structure has been adopted, but in the case of a single large liner tank, This has the disadvantage that the amount of time increases and the number of man-hours also increases.

[発明の構成] (問題点を解決するための手段) 本発明のライナーの漏洩検知装置は、従来技術における
上述のごとき欠点を除去すべくなされたもので、コンク
リート基礎にアンカーを介して固定されるライナープレ
ートの端部にチャンネル部材(たとえばC形チャンネル
部材)を溶接し、前記コンクリート基礎に埋設された形
鋼(たとえば■形鋼)の上端に隅肉溶接して、開口部を
有する漏洩検出用チャンネルを形成し、このチャンネル
の前記開口部を蓋板で密閉したことを特徴とするもので
ある。
[Structure of the Invention] (Means for Solving the Problems) The liner leak detection device of the present invention has been made in order to eliminate the above-mentioned drawbacks in the prior art, and is fixed to a concrete foundation via an anchor. A channel member (for example, a C-shaped channel member) is welded to the end of the liner plate, and fillet welded to the upper end of a section steel (for example, a section steel) buried in the concrete foundation to provide an opening for leak detection. The invention is characterized in that a channel is formed therein, and the opening of the channel is sealed with a cover plate.

(作用) 上述のように構成した本発明のライナーの漏洩検知装置
においては、形鋼とライナープレートの間は一対のチャ
ンネル部材を介して液密に接続され、これらのチャンネ
ル部材と形鋼とによって形成される溝状の漏洩検出用チ
ャンネルは蓋板によって密封されているので、地下水の
侵入を確実に防止することができる。
(Function) In the liner leak detection device of the present invention configured as described above, the section steel and the liner plate are fluid-tightly connected via a pair of channel members, and the channel members and the section steel Since the groove-shaped leak detection channel that is formed is sealed by the cover plate, intrusion of groundwater can be reliably prevented.

(実施例) 以下、本発明の一実施例を第1図ないし第3図を参照し
て説明する。なお、これらの図では、第4図および第5
図におけると同一部分には同一の符号を付しである。
(Example) An example of the present invention will be described below with reference to FIGS. 1 to 3. In addition, in these figures, figures 4 and 5 are
The same parts as in the figures are given the same reference numerals.

第2図はライナープレート2をライニングするに先だっ
て、その端部の近傍にC形チャンネル部材11を固定し
た状態を示すもので、C形チャンネル部材11の一辺端
部は溶接部12によってライナープレート2の裏面に溶
接されている。
FIG. 2 shows a state in which a C-shaped channel member 11 is fixed near the end of the liner plate 2 prior to lining the liner plate 2. One end of the C-shaped channel member 11 is attached to the liner plate by a weld 12 It is welded on the back side of the

一方、コンクリート基礎の打設にあたっては、第3図に
示すように、所定の位置にI形鋼6が位置決め固定され
、またコンクリート基礎1の表面を規定する形枠13と
上記■形鋼6の間には溝スペース形成用の形枠14が介
挿されている。
On the other hand, when pouring a concrete foundation, as shown in FIG. A frame 14 for forming a groove space is inserted between them.

第3図に示す状態で、コンクリート基礎1を打設し、そ
れが硬化した後、形枠13.14を取り去り、第1図に
示すように、形枠14の除去後に形成された溝状の空間
に、それぞれライナープレート2.2に溶接されたC形
チャンネル部材11.11を挿入し°、溶接部15.1
5によってI形鋼の表面に固定するとともに、ライナー
プレートの所々をアンカー(図示せず)に固定する。し
かる後、第3図に示すように、蓋板16を両側のC形チ
ャンネル11.11上に載置し、溶接部17.17によ
り固着する。
In the state shown in Fig. 3, the concrete foundation 1 is poured, and after it has hardened, the forms 13 and 14 are removed, and as shown in Fig. Into the spaces are inserted C-shaped channel members 11.11, each welded to the liner plate 2.2, and the welds 15.1
5 to the surface of the I-beam steel, and the liner plate is fixed to anchors (not shown) in places. Thereafter, as shown in FIG. 3, the cover plate 16 is placed over the C-shaped channels 11.11 on both sides and secured by welds 17.17.

このようにすれば、隣接する一対のライナーブレート2
.2間には一対のC形チャンネル部材11.11と■形
a46からなる密閉構造の漏洩検出用チャンネル17が
形成されることになる。
In this way, a pair of adjacent liner plates 2
.. A leak detection channel 17 of a sealed structure consisting of a pair of C-shaped channel members 11.11 and a square a46 is formed between the two.

この場合、ライナープレート2.2と蓋板16は同一面
とされる。また、C形チャンネル部材11.11は溶接
部17.17に対して裏あて金として機能し、また、C
形チャンネル部材11.11と■形鋼6はライナープレ
ート2.2に対してアンカーとしても機能する。
In this case, the liner plate 2.2 and the lid plate 16 are on the same plane. The C-shaped channel member 11.11 also functions as a backing for the weld 17.17, and also serves as a backing for the weld 17.17.
The shaped channel member 11.11 and the shaped steel 6 also function as anchors for the liner plate 2.2.

[発明の効果] 以上のように、本発明のライナーの漏洩検知装置は漏洩
検出用チVンネルが密封構造であり、地下水の侵入を完
全に防止できるので、ライナープレートからの漏洩を確
実に検知でき、かつ、ライナープレートは一重構造であ
るので物量も少なく、構築工数も削減でき、ライナーの
漏洩検知装置を安価に提供できる。
[Effects of the Invention] As described above, in the liner leak detection device of the present invention, the leak detection channel has a sealed structure and can completely prevent underground water from entering, so leaks from the liner plate can be reliably detected. In addition, since the liner plate has a single layer structure, the amount of material is small, the number of construction steps can be reduced, and the liner leakage detection device can be provided at low cost.

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

第1図〜第3図は本発明の施工手順を示す説明図、第4
図及び第5図はそれぞれ従来の構造を例示するライナ一
部の断面図である。 1・・・・・・・・・コンクリート基礎2・・・・・・
・・・ライナープレート3・・・・・・・・・裏あて金 5・・・・・・・・・下地プレート 6・・・・・・・・・I形鋼 7・・・・・・・・・溝状チャンネル 8・・・・・・・・・漏洩検知用配管 11・・・・・・・・・C形チャンネル部材13.14
・・・形枠 16・・・・・・・・・蓋板 18・・・・・・・・・漏洩検出用チャンネル代理人 
弁理士  則 近 憲 缶 周      第子丸  健 第1図 第2図 第3図
Figures 1 to 3 are explanatory diagrams showing the construction procedure of the present invention, and Figure 4
5 and 5 are cross-sectional views of a portion of a liner, each illustrating a conventional structure. 1... Concrete foundation 2...
・・・Liner plate 3・・・・・・Backing plate 5・・・・・・Base plate 6・・・・・・I-shaped steel 7・・・・・・...Groove-shaped channel 8...Leak detection piping 11...C-shaped channel member 13.14
...Form 16...Cover plate 18...Leak detection channel agent
Patent Attorney Nori Chika Ken Shu Ken Daishimaru Figure 1 Figure 2 Figure 3

Claims (5)

【特許請求の範囲】[Claims] (1)コンクリート基礎にアンカーを介して固定される
ライナープレートの端部にチャンネル部材を溶接し、前
記コンクリート基礎に埋設された形鋼の上端に前記チャ
ンネル部材を対として配設し溶接することによって開口
部を有する漏洩検出用チャンネルを形成し、このチャン
ネルの前記開口部を蓋板で密閉したことを特徴とするラ
イナーの漏洩検知装置。
(1) By welding a channel member to the end of a liner plate fixed to the concrete foundation via an anchor, and arranging and welding the channel member as a pair to the upper end of the section steel buried in the concrete foundation. A leak detection device for a liner, characterized in that a leak detection channel having an opening is formed, and the opening of the channel is sealed with a cover plate.
(2)蓋板の上面をライナープレートの上面と同一面と
したことを特徴とする特許請求の範囲第1項記載のライ
ナーの漏洩検知装置。
(2) The liner leak detection device according to claim 1, wherein the top surface of the lid plate is flush with the top surface of the liner plate.
(3)チャンネル部材がC形チャンネル部材からなり、
コンクリート基礎に埋設された形鋼とともに、ライナー
プレート固定用のアンカーを形成していることを特徴と
する特許請求の範囲第1項記載のライナーの漏洩検知装
置。
(3) The channel member consists of a C-shaped channel member,
2. The liner leakage detection device according to claim 1, wherein the liner leakage detection device forms an anchor for fixing the liner plate together with the shaped steel buried in the concrete foundation.
(4)ライナープレートの端部に固設したC形チャンネ
ル部材が裏あて金の機能を有し、この裏あて金に蓋板が
載置溶接されていることを特徴とする特許請求の範囲第
1項記載のライナーの漏洩検知装置。
(4) The C-shaped channel member fixed to the end of the liner plate has the function of a backing metal, and a cover plate is placed and welded to this backing metal. The liner leak detection device according to item 1.
(5)形鋼がI形鋼であることを特徴とする特許請求の
範囲第1項ないし第4項のいずれか一項に記載のライナ
ーの漏洩検知装置。
(5) The liner leak detection device according to any one of claims 1 to 4, wherein the steel section is an I-section steel.
JP62115810A 1987-05-14 1987-05-14 Leak detector for liner Pending JPS63281035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62115810A JPS63281035A (en) 1987-05-14 1987-05-14 Leak detector for liner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62115810A JPS63281035A (en) 1987-05-14 1987-05-14 Leak detector for liner

Publications (1)

Publication Number Publication Date
JPS63281035A true JPS63281035A (en) 1988-11-17

Family

ID=14671655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62115810A Pending JPS63281035A (en) 1987-05-14 1987-05-14 Leak detector for liner

Country Status (1)

Country Link
JP (1) JPS63281035A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146405B2 (en) 2008-03-11 2012-04-03 De Dietrich Process Systems, Inc. Apparatus and methods for indicating seal leakage
CN103645018A (en) * 2013-12-05 2014-03-19 江苏新时代造船有限公司 Fillet weld inflation test method
JP2015155874A (en) * 2014-02-21 2015-08-27 鹿島建設株式会社 Radioactive material leakage detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8146405B2 (en) 2008-03-11 2012-04-03 De Dietrich Process Systems, Inc. Apparatus and methods for indicating seal leakage
CN103645018A (en) * 2013-12-05 2014-03-19 江苏新时代造船有限公司 Fillet weld inflation test method
JP2015155874A (en) * 2014-02-21 2015-08-27 鹿島建設株式会社 Radioactive material leakage detection method

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