JPS63117240A - Pressure proof tester - Google Patents
Pressure proof testerInfo
- Publication number
- JPS63117240A JPS63117240A JP26188486A JP26188486A JPS63117240A JP S63117240 A JPS63117240 A JP S63117240A JP 26188486 A JP26188486 A JP 26188486A JP 26188486 A JP26188486 A JP 26188486A JP S63117240 A JPS63117240 A JP S63117240A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- nozzle
- plug
- water
- sheet packing
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は配管に接続したノズルに係わり、ノズル継手溶
接部の耐圧を確認するために好適な耐圧試験′！Ａ置に
関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a nozzle connected to piping, and is suitable for a pressure resistance test to check the pressure resistance of a nozzle joint weld! This is related to the A position.
従来の配管の耐圧試験方法としては特開昭５６−７９９
３６号公報記載の如く、給水管の末端部に設けた弁を操
作しその時の給水管の分岐点及び末端部の差圧を測定し
漏洩箇所を検出しているため試験の段取り準備、配管に
接続している弁のシート面のすり合わせ等が発生し、手
間や工数増加となる欠点があった。その従来例が第３図
に示す。同図に示されているようにノズル１継手溶接部
の耐圧試験は耐圧ポンプ１１から耐圧ライン１０を介し
て配管系統全体に圧力をかけて実施していた。The conventional pressure test method for piping is JP-A-56-799.
As described in Publication No. 36, leakage points are detected by operating the valve installed at the end of the water supply pipe and measuring the differential pressure at the branch point and end of the water supply pipe at that time. This has the disadvantage that the seat surfaces of the connected valves have to be rubbed together, which increases time and effort. A conventional example is shown in FIG. As shown in the figure, the pressure test of the welded joint of the nozzle 1 was carried out by applying pressure to the entire piping system from a pressure pump 11 via a pressure line 10.
上記従来技術は配管継手溶接部の耐圧を確認するだけで
配管系統全体に圧力をかけねばならず又試験のために段
取り、準備、弁シート面のすり合わせ等が発生し無駄な
時間と手間をかけるという問題があった。In the above conventional technology, pressure must be applied to the entire piping system just to check the pressure resistance of the welded part of the piping joint, and setup, preparation, and alignment of valve seat surfaces are required for the test, which wastes time and effort. There was a problem.
本発明の目的は無駄な時間と手間をかけることなく合理
的に耐圧試験を可能にすることにある。An object of the present invention is to enable a reasonable pressure test without wasting time and effort.
上記目的は、特殊プラグを配管に接続したノズルの内面
に固定させることにより達成される。The above object is achieved by fixing a special plug to the inner surface of the nozzle connected to the pipe.
配管に接続したノズルの内面に固定されたプラグは固定
ナツトを回転させ締付けることにより、シールバッキン
グがノズルの内面に密若し固定されるとともに、水入口
より水圧をかけた場合シールバッキングがシールの役目
をはたし圧力が抜けることがない。The plug is fixed to the inner surface of the nozzle connected to the piping, and by rotating and tightening the fixing nut, the seal backing is tightly or fixed to the inner surface of the nozzle, and when water pressure is applied from the water inlet, the seal backing will close to the seal. It does its job and the pressure never lets up.
本発明の一実施例を第１図および第２図により説明する
。ノズル１の内面にプラグ２を挿入する。An embodiment of the present invention will be described with reference to FIGS. 1 and 2. Insert the plug 2 into the inner surface of the nozzle 1.
プラグ２は固定ナツト３、シートパッキング４、水入口
管５で構成されている。ノズル１の溶接肉盛６の耐圧試
験を行なう場合、固定ナツト３を回転させ締付けること
によってシートパッキング４が圧縮され、ノズル１の内
面に密着しシールの役目をする。その後に水入口管５よ
り水を入れれば、シ改ル１の内面に水圧がかかり溶接肉
盛６の耐圧を確認することが出来る。The plug 2 is composed of a fixing nut 3, a sheet packing 4, and a water inlet pipe 5. When performing a pressure resistance test on the weld overlay 6 of the nozzle 1, the sheet packing 4 is compressed by rotating and tightening the fixing nut 3, and comes into close contact with the inner surface of the nozzle 1, serving as a seal. If water is then introduced from the water inlet pipe 5, water pressure will be applied to the inner surface of the seal 1, allowing the pressure resistance of the weld overlay 6 to be confirmed.
本発明によれば配管系統全体に圧力をかけることなく、
部分耐圧試験が出来るので時間や手間がかからない所に
効果がある。According to the present invention, without applying pressure to the entire piping system,
Partial pressure tests can be performed, so it is effective where time and effort are not required.
第１図は第２図のＡ部詳細図、第２図は本発明の一実施
例の配管に接続したノズルを示す正面図、第３図は従来
の耐圧試験システム概略図である。
１・・・ノズル、２・・・特殊プラグ、３・・・固定ナ
ツト、４・・・シートパッキング、５・・・水入口管、
６・・・溶接肉盛、７・・・原子炉圧力容器、８・・・
循環ポンプ、９措１図
来′Ｌ区1 is a detailed view of part A in FIG. 2, FIG. 2 is a front view showing a nozzle connected to piping according to an embodiment of the present invention, and FIG. 3 is a schematic diagram of a conventional pressure test system. 1... Nozzle, 2... Special plug, 3... Fixing nut, 4... Sheet packing, 5... Water inlet pipe,
6... Weld overlay, 7... Reactor pressure vessel, 8...
Circulation pump, 9 measures 1 diagram 'L section
Claims (1)
より配管を取替えた後継手溶接肉盛の耐圧試験を行い、
耐圧試験は耐圧の対象となる溶接肉盛をはさんでノズル
の内面に挿入し、プラグの両端には圧力に耐えるための
シートパッキングを装着させ、シートパッキングは固定
ナットを回転締付けることにより圧縮されノズル内面と
密着するように組込まれた状態で水入口管より水を入れ
圧力を加えることにより溶接肉盛の耐圧を確認出来るこ
とを特徴とする耐圧試験装置。1. We conducted a pressure resistance test on the replacement hand welded overlay of the piping installed in the reactor, which was replaced by piping modification etc.
In the pressure test, the plug is inserted into the inner surface of the nozzle across the weld overlay that is subject to pressure resistance, and sheet packing is attached to both ends of the plug to withstand the pressure.The sheet packing is compressed by rotating and tightening the fixing nut. A pressure test device characterized by being able to check the pressure resistance of a weld overlay by filling water from a water inlet pipe and applying pressure while the nozzle is assembled so as to be in close contact with the inner surface of the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26188486A JPS63117240A (en) | 1986-11-05 | 1986-11-05 | Pressure proof tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26188486A JPS63117240A (en) | 1986-11-05 | 1986-11-05 | Pressure proof tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63117240A true JPS63117240A (en) | 1988-05-21 |
Family
ID=17368101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26188486A Pending JPS63117240A (en) | 1986-11-05 | 1986-11-05 | Pressure proof tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63117240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239141U (en) * | 1988-09-08 | 1990-03-15 | ||
| JP2010139328A (en) * | 2008-12-10 | 2010-06-24 | Chugoku Electric Power Co Inc:The | Method of performing pressure test of piping |
-
1986
- 1986-11-05 JP JP26188486A patent/JPS63117240A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239141U (en) * | 1988-09-08 | 1990-03-15 | ||
| JP2010139328A (en) * | 2008-12-10 | 2010-06-24 | Chugoku Electric Power Co Inc:The | Method of performing pressure test of piping |
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