JPS595193B2 - Lug for piping restraint - Google Patents
Lug for piping restraintInfo
- Publication number
- JPS595193B2 JPS595193B2 JP53026323A JP2632378A JPS595193B2 JP S595193 B2 JPS595193 B2 JP S595193B2 JP 53026323 A JP53026323 A JP 53026323A JP 2632378 A JP2632378 A JP 2632378A JP S595193 B2 JPS595193 B2 JP S595193B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- piping
- lug
- frame
- restraint
- 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.)
- Expired
Links
Landscapes
- Supports For Pipes And Cables (AREA)
Description
【発明の詳細な説明】
本発明は、たとえば発電プラント等の配管系に適用され
、配管系の熱膨張変位等の拘束反力を構造物に伝えるた
めの配管拘束用ラグに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piping restraining lug that is applied to a piping system of a power generation plant, for example, and is used to transmit a restraining reaction force such as thermal expansion displacement of the piping system to a structure.
一般に用いられている配管拘束用ラグは、円筒状ないし
、長方形断面をなしていて、配管の外周面円周方向に間
隔を置いて２ないし４ケ所溶接により増付け、その拘束
点反力を構造物に伝えるようになっている。Generally used piping restraint lugs have a cylindrical or rectangular cross section, and are added by welding at two to four locations circumferentially at intervals on the outer circumferential surface of the pipe, and the reaction force at the restraining point is absorbed by the structure. It is designed to convey information to things.
しかし上記配管拘束用ラグでは、ラグと管表面の増り合
い点に応力が集中し易く、また管軸方向のモーメントを
非拘束としたい場合にはその機能を円滑に遂行し得ない
ことがある。However, with the piping restraint lugs described above, stress tends to concentrate at the point of increase between the lug and the pipe surface, and if the moment in the pipe axis direction is desired to be unrestrained, the function may not be performed smoothly. .
本発明は上記した点に鑑みてなされたもので、拘束用ラ
グと管表面の取り合い点の応力集中を低減するとともに
管軸方向のモーメントを非拘束にしようとする際にその
機能を円滑に遂行し得るようにした配管拘束用ラグを提
供することを目的とする。The present invention has been made in view of the above points, and it reduces stress concentration at the connection point between the restraining lug and the pipe surface, and smoothly performs its function when attempting to unrestrict the moment in the pipe axis direction. It is an object of the present invention to provide a lug for restraining piping that can be used to restrain piping.
以下本発明の一実施例を図面につき説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明を排水装置に適用した例を示すものであ
って、配管拘束用ラグ１は、全体として中空円板体すな
わち環状体をなしていて、配管２の適轟位置に外嵌固定
されるようになっている。FIG. 1 shows an example in which the present invention is applied to a drainage system, in which a piping restraining lug 1 has a hollow disc body, that is, an annular body as a whole, and is externally fitted to a suitable position of a piping 2. It is set to be fixed.
すなわち配管拘束用ラグ１の内径は、配管２の外径に略
一致するように設定され、配管拘束用ラグ１を配管２に
外嵌した後に、その配管拘束用ラグ１は、溶接手段３に
より配管２に全周にわたって一体的に固設される。That is, the inner diameter of the piping restraint lug 1 is set to approximately match the outer diameter of the piping 2, and after the piping restraint lug 1 is fitted onto the piping 2, the piping restraint lug 1 is welded by the welding means 3. It is integrally fixed to the pipe 2 over the entire circumference.
また上記配管拘束用ラグ１の外径は、配管２を配置すべ
き枠体状の構造物４に設けた内部空間５の内接円に略一
致するように設定され、配管２を内部空間に配置した際
に、配管拘束用ラグ１が枠体状の構造物４の内面に対し
て垂直面および水平面で箔接支持されるようになってい
る。Further, the outer diameter of the piping restraint lug 1 is set to approximately match the inscribed circle of the internal space 5 provided in the frame-like structure 4 in which the piping 2 is placed, and the piping 2 is placed in the internal space. When arranged, the piping restraint lug 1 is supported in foil contact with the inner surface of the frame-like structure 4 on vertical and horizontal surfaces.
しかして配管拘束用ラグ１を取付けた配管２を・枠体状
の構造物４内部に置くと、配管２の水平方向および垂直
方向の動きは、配管拘束用ラグ１により拘束されるが、
それ以外の変位、たとえば回転運動は拘束されず、円滑
に動作される。When the piping 2 with the piping restraint lug 1 attached is placed inside the frame-like structure 4, the movement of the piping 2 in the horizontal and vertical directions is restrained by the piping restraint lug 1.
Other displacements, such as rotational movement, are not restricted and can be smoothly operated.
以上述べたように本発明によれば、配管全周面に亘って
拘束反力を受けるから、管と拘束用ラグとのホシ合い部
の応力集中が低減され、また管軸方向のモーメントを非
拘束した場合には、その機能を円滑に遂行し得、さらに
原子力発電所の供用期間中検査として拘束用ラグの非破
壊検査を行なう場合でも構造物を耶外すことで全溶接部
の検査が可能となる等の効果を有する。As described above, according to the present invention, the restraint reaction force is applied to the entire circumference of the pipe, so stress concentration at the joint between the pipe and the restraint lug is reduced, and the moment in the pipe axis direction is reduced. When restrained, it can perform its function smoothly, and even when performing non-destructive testing of restraint lugs during the service life of a nuclear power plant, it is possible to inspect all welded parts by removing the structure. It has the following effects.
第１図は、本発明を排水装置に適用した一例を示す説明
図、第２図は拘束ラグの増付せ態を示す側面図である。
１・・・・・・配管拘束用ラグ、２・・・・・・配管、
３・・−・・溶接部、４・・・・・・枠体状の構造物。FIG. 1 is an explanatory view showing an example in which the present invention is applied to a drainage device, and FIG. 2 is a side view showing how a restraining lug is added. 1... Lug for piping restraint, 2... Piping,
3...Welded part, 4... Frame-like structure.
Claims (1)
体状の構造物と、この枠体状の構造物と配管の間に設け
られる配管拘束用ラグにおいて、その内径を配管の外径
に略一致させた環状板体をなし、その内径をほぼ全周に
わたって配管に溶接により一体的に固着され、その外周
端で上記枠体状の構造物と少くとも一点て接し、配管の
軸方向の移動及び配管の中心軸まわりの回転運動及び上
記枠体状の構造物との接点を中心とする回転運動を可能
に設けられたことを特徴とする配管拘束用ラグ。1. The inner diameter of the pipe, the frame-like structure for supporting the pipe located at the installation position of the pipe, and the pipe restraint lug provided between the frame-like structure and the pipe. It is an annular plate whose inner diameter is approximately the same as that of the pipe, and is integrally fixed to the pipe by welding over almost the entire circumference of the inner diameter, and whose outer peripheral end touches the frame-shaped structure at least at one point, and which is connected to the axis of the pipe. A lug for restraining piping, characterized in that it is capable of directional movement, rotational movement around the central axis of the piping, and rotational movement around a point of contact with the frame-like structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53026323A JPS595193B2 (en) | 1978-03-08 | 1978-03-08 | Lug for piping restraint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53026323A JPS595193B2 (en) | 1978-03-08 | 1978-03-08 | Lug for piping restraint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54119123A JPS54119123A (en) | 1979-09-14 |
| JPS595193B2 true JPS595193B2 (en) | 1984-02-03 |
Family
ID=12190187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53026323A Expired JPS595193B2 (en) | 1978-03-08 | 1978-03-08 | Lug for piping restraint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595193B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017129183A (en) * | 2016-01-19 | 2017-07-27 | 東芝プラントシステム株式会社 | Piping anchor plate and installation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51111215U (en) * | 1975-03-05 | 1976-09-08 |
-
1978
- 1978-03-08 JP JP53026323A patent/JPS595193B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017129183A (en) * | 2016-01-19 | 2017-07-27 | 東芝プラントシステム株式会社 | Piping anchor plate and installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54119123A (en) | 1979-09-14 |
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