JPS58178054A - Joint sealing method - Google Patents

Joint sealing method

Info

Publication number
JPS58178054A
JPS58178054A JP6097482A JP6097482A JPS58178054A JP S58178054 A JPS58178054 A JP S58178054A JP 6097482 A JP6097482 A JP 6097482A JP 6097482 A JP6097482 A JP 6097482A JP S58178054 A JPS58178054 A JP S58178054A
Authority
JP
Japan
Prior art keywords
groove
flange
flange joint
melting point
low melting
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
JP6097482A
Other languages
Japanese (ja)
Inventor
Kazutoshi Hirasawa
平沢　一俊
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
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6097482A priority Critical patent/JPS58178054A/en
Publication of JPS58178054A publication Critical patent/JPS58178054A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

PURPOSE:To prevent leakage of internal fluid surely by providing a groove in the circumferential edge part of one of the surfaces of a flange joint part of a pressure container, fastening the flange joint part with bolts, and thereafter pouring in a molten metal having a low melting point in this groove. CONSTITUTION:The upper casing half 1 and lower casing half 2 are coupled by bolts 3 and nuts 4 at their flanged parts 1a, 2a, and then a molten metal having a low melting point 6 such as lead is poured in a groove 5 provided in the circumferential edge part of the lower flange surface 2a. Thus a mating surfaces of a flange coupling are sealed. Accordingly leakage of the internal fluid through the flange joint surfaces can be prevented as well as risk of gap generation between the surfaces owing to corrosion can be eliminated.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は内部（″−正圧力有する気体または液体の容器
（＝おいて、容器継手面を封止する方法（＝関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for sealing a container joint surface in a gas or liquid container (=) having a positive pressure.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来高温・高圧でかつ湿シ蒸気を内包する例えば原子カ
タービンケーシイグ等の上・下半二つ割れ水平フランジ
継手は、内部蒸気圧力（二抗してボルトの締付は力によ
シ水平７ランジ面を高面圧密着させ、内部蒸気の漏洩を
防止する封止方法であるが、ボルト締付け（−よる７ラ
ンジ継手は、タービンケーシングの構造上の複雑さやタ
ービン運転状態におけるケーシング温度分布不均一によ
って密着面圧は一様ではなく、特にボルト位置よシ遠く
離れた継手面において面圧が低下している。このことは
フランジ継手面からの蒸気を漏洩させ、さらには漏洩部
分なドレンで浸食し継手面にすきまを生じさせる等、継
手面の仕上精度を損うこと（二よる封止継手としての機
能を喪失する欠点がある。Conventionally, horizontal flange joints with upper and lower halves that contain high temperature, high pressure, and moist steam, such as those for nuclear turbine casings, have been designed with horizontal flange joints split into two halves, such as those for nuclear turbine casings. This is a sealing method that brings the 7 flange surfaces into close contact with each other under high contact pressure to prevent leakage of internal steam. Due to the uniformity, the contact surface pressure is not uniform, and the surface pressure is particularly low on joint surfaces far away from the bolt position.This causes steam to leak from the flange joint surface, and furthermore, condensate from the leaking portion. It has the disadvantage of impairing the finish accuracy of the joint surface (e.g., by causing erosion and creating gaps on the joint surface) (secondarily, it loses its function as a sealed joint).

〔発明の目的〕[Purpose of the invention]

本発明は７ランジ継手面（二おける内部気体または液体
の漏洩と７２ンジ面の浸食を防止できるような継手封止
法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a joint sealing method that can prevent internal gas or liquid leakage at the 7-flange joint surface and erosion of the 72-nge joint surface.

〔発明の概要〕[Summary of the invention]

上記目的を達成するため本発明は、圧力容器の７ランジ
継手部の一方の７ランジ継手面の周端部（一連続して溝
を設け、締付ボルト（二て締結した後、前記溝（二低溶
融点金属を溶解して流し込むことを特徴とするものであ
る。In order to achieve the above object, the present invention provides a circumferential edge of one 7-lange joint surface of a 7-lange joint of a pressure vessel (one continuous groove is provided, and after the tightening bolt (2) is fastened, the groove ( It is characterized by melting and pouring two low melting point metals.

〔発明の実施例〕[Embodiments of the invention]

以下本発明を図面（＝示す一実施例によって説明する。 The present invention will be explained below with reference to an embodiment shown in the drawings.

図面は例えば原子力タービンケーシングの様（二高温高
圧でかつ湿シ蒸気を内包する７ランジ継手婦の形状を示
す断面図である。上平ケーシング（１）と下半ケーシン
グ（２）を上竿フランジ継手（１ａ）と下半フランジ佃
＋（２ａ）　（二てｄｌσ付ボルト（３）とナツト（４
）で締結した後、下半７ランジ継手面（２ａ）の周端部
（二連続して設けた溝（５）（二低溶融点金属（６）を
溶解し流し込むこと口よって、７２ンジ継手合せ都端面
を封止し内包する蒸気の漏洩を防ぐものである。The drawing is a cross-sectional view showing the shape of a 7-lunge joint that contains steam at high temperature and high pressure, such as in a nuclear turbine casing, for example. Fitting (1a) and lower half flange Tsukuda + (2a) (two bolts with dlσ (3) and nuts (4)
), then melt and pour the two consecutively provided grooves (5) (two low melting point metals (6)) into the peripheral end of the lower half 7-flange joint surface (2a), thereby forming the 72-nge joint. This seals the mating end faces to prevent the contained steam from leaking.

低溶融点金属（６１Ｅは、鉛等を用いる。鉛の融点は３
２７’Ｏのため金属としては比較的低い温度で溶融Ｊ−
る。したがって、溶解作業、流し込み作業が簡易である
うえ、タービンの定勘検青でケーシングを分解する除の
鉛除去作業も容易である。よって測置でもケーシングの
分解組立てを実施しても丹現が可能な封止方法である。Low melting point metal (lead etc. is used for 61E. The melting point of lead is 3
Because it is 27'O, it melts at a relatively low temperature for a metal.
Ru. Therefore, melting work and pouring work are easy, and lead removal work, which involves disassembling the casing during turbine inspection, is also easy. Therefore, this is a sealing method that can be used both during installation and when disassembling and reassembling the casing.

タービン運転中（二おける鉛の健全性（二ついてはＢＷ
Ｒ形用原子力タービンの場合、入口蒸気偏置が約２８２
°Ｃで鉛の一点よｐ低いので蒸気の影譬ケ受けて溶解す
ることはない。During turbine operation (lead health in two places (BW in two places)
In the case of the R-type nuclear power turbine, the inlet steam eccentricity is approximately 282
Since the temperature at °C is one point lower than that of lead, it will not be affected by steam and will not dissolve.

〔発明の効果〕〔Effect of the invention〕

不尭明によれば圧力容器の７ランジ継手面からの内部流
体の漏洩が防止できるととも（＝、７ランジ継手面の浸
食によるすき丑の発生がなくなるという効果が得られる
。According to Fuyaimei, leakage of internal fluid from the 7-lunge joint surface of the pressure vessel can be prevented (=, the effect of eliminating the occurrence of plowing due to erosion of the 7-lunge joint surface) can be obtained.

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

図面はタービンケーシングのフランジ継手面を示す断面
図である。 １・・・下半ケーシング（圧力容器）、１ａ・・・上半
７ランジ継手、 ２・・・下半ケーシング（圧力容器）、２ａ・・・下半
フランジ継手、 ３・・・７丁痛付ボルト、　　　　４・・・ナツト、５
・・・溝、　　　　　　　　６・・・低溶融点金属。The drawing is a sectional view showing the flange joint surface of the turbine casing. 1...Lower half casing (pressure vessel), 1a...Upper half 7 lange joint, 2...Lower half casing (pressure vessel), 2a...Lower half flange joint, 3...7 flange joint Bolt, 4... Nut, 5
...Groove, 6...Low melting point metal.

Claims (1)

【特許請求の範囲】[Claims] 圧力容器の７ランジ継手部の一方のフランジ継手面の周
端部（二連を設け、締付ボルト（二て締結した後、前記
溝（−低溶融点金属を溶解して流し込むことを特徴とす
る継手封止方法。The peripheral end of one flange joint surface of the 7-flange joint of the pressure vessel (two sets are provided, and after the tightening bolts (two sets are fastened), the groove (-) is characterized in that a low melting point metal is melted and poured into the groove. Fitting sealing method.
JP6097482A 1982-04-14 1982-04-14 Joint sealing method Pending JPS58178054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6097482A JPS58178054A (en) 1982-04-14 1982-04-14 Joint sealing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6097482A JPS58178054A (en) 1982-04-14 1982-04-14 Joint sealing method

Publications (1)

Publication Number Publication Date
JPS58178054A true JPS58178054A (en) 1983-10-18

Family

ID=13157899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6097482A Pending JPS58178054A (en) 1982-04-14 1982-04-14 Joint sealing method

Country Status (1)

Country Link
JP (1) JPS58178054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104819017A (en) * 2015-03-09 2015-08-05 章礼道 Novel sealing method for low-medium pressure cylinder split

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104819017A (en) * 2015-03-09 2015-08-05 章礼道 Novel sealing method for low-medium pressure cylinder split

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