JPH07318683A - Pressure vessel - Google Patents

Pressure vessel

Info

Publication number
JPH07318683A
JPH07318683A JP6110953A JP11095394A JPH07318683A JP H07318683 A JPH07318683 A JP H07318683A JP 6110953 A JP6110953 A JP 6110953A JP 11095394 A JP11095394 A JP 11095394A JP H07318683 A JPH07318683 A JP H07318683A
Authority
JP
Japan
Prior art keywords
pressure
vessel
flange
gas
space
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.)
Withdrawn
Application number
JP6110953A
Other languages
Japanese (ja)
Inventor
Seiya Yamada
誠也 山田
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6110953A priority Critical patent/JPH07318683A/en
Publication of JPH07318683A publication Critical patent/JPH07318683A/en
Withdrawn legal-status Critical Current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

  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE:To open and recover a flange in a short time by feeding a same gas as that encapsulated in a vessel, under high pressure, into a space formed on the joint face of the flange by a plurality of sealing means. CONSTITUTION:A gasket 3 fitted in a gasket groove 4 of a flange 5 isolates the inside of a pressure vessel from the outside through its sealing function, while at the same time, defines an enclosed space 16 together with the jointing faces of the flanges 1, 5. A gas identical to that encapsulated in the vessel. i.e., helium gas, is then fed under pressure higher than the inner pressure of the vessel into the space 16 to establish a pressure barrier between the inside and outside of the vessel thus isolating the inside of the vessel from the outside mechanically and physicalty. High pressure helium gas supply into a supply tank 11 is regulated 10 such that the pressure P2 in the space 16 is higher by DELTAP than the inner pressure P0 of the vessel by detecting 9 the pressure based on the signals from pressure gauges 6, 7. Consequently, gas leakage can be inhibited without welding a sealing material to the joint face and the flange can be opened and recovered in 2 short time.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、原子力プラントなどに
適用される圧力容器に関するものでる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure vessel applied to a nuclear power plant or the like.

【0002】[0002]

【従来の技術】図3は原子力プラントに使用されている
従来の圧力容器の説明図である。図において、本圧力容
器のフランジ1,5は接合面のガスケット溝4にガスケ
ット3を納め、両側のフランジ1,5をボルト2で締め
付けてシールするようになっている。さらに、この接合
面のシール性を確保するためにオメガシール6等のシー
ル材を溶接によりフランジ1,5の接合面に取付けてい
る。
2. Description of the Related Art FIG. 3 is an explanatory view of a conventional pressure vessel used in a nuclear power plant. In the figure, the flanges 1 and 5 of the present pressure vessel are configured such that the gasket 3 is housed in the gasket groove 4 on the joint surface, and the flanges 1 and 5 on both sides are tightened with bolts 2 to seal. Further, a sealing material such as an omega seal 6 is attached to the joint surfaces of the flanges 1 and 5 by welding in order to secure the sealing property of the joint surfaces.

【0003】[0003]

【発明が解決しようとする課題】上記のように従来の圧
力容器においては、フランジの接合面にシール材を溶接
により取付けているため、メンテナンス時などにフラン
ジ1,5を解放する場合にはシール材の除去、再取付け
などに多大な時間を要し、原子力プラントにおける1次
系の圧力容器などの場合には被曝量が増大する。また、
メンテナンス時などにはフランジ1に設けられているヘ
リウムガスの漏洩検出ライン7に仮設の漏洩検出設備8
を取付けてヘリウムガスの検出を行っているが、原子力
プラントの停止時にのみヘリウムガス漏洩の確認を行う
だけで、フランジ1,5を締め付けて運転を開始した後
に熱サイクル等の影響を受けてガスケット3に加わる面
圧が変化し内包するヘリウムガス等の漏洩が発生するこ
とがあり、ヘリウムガス漏洩の発生時に速かに対応する
ことはできない。
As described above, in the conventional pressure vessel, since the sealing material is attached to the joint surface of the flange by welding, the sealing is required when the flanges 1 and 5 are released during maintenance or the like. It takes a lot of time to remove and reattach the material, and the exposure dose increases in the case of a primary pressure vessel in a nuclear power plant. Also,
A temporary leak detection facility 8 is installed on the helium gas leak detection line 7 provided on the flange 1 for maintenance.
The helium gas is detected by mounting the helium gas, but only by confirming the helium gas leakage when the nuclear power plant is stopped, after the flanges 1 and 5 are tightened and operation is started, the gasket is affected by the heat cycle etc. The surface pressure applied to 3 may change and the contained helium gas or the like may leak, and it is not possible to quickly respond when the helium gas leaks.

【0004】[0004]

【課題を解決するための手段】本発明に係る圧力容器は
上記課題の解決を目的にしており、フランジの接合面に
複数重に設けられ互いの間に空間を形成するシール手段
と、上記空間内に容器内包ガスよりも高圧の同一ガスを
供給する手段とを備えた構成を特徴とする。
SUMMARY OF THE INVENTION A pressure vessel according to the present invention is intended to solve the above-mentioned problems, and a plurality of sealing means are provided on a joint surface of a flange to form a space therebetween, and the space described above. And a means for supplying the same gas having a pressure higher than that of the gas contained in the container.

【0005】また、本発明に係る圧力容器は、フランジ
の接合面に複数重に設けられ互いの間に空間を形成する
シール手段と、上記空間内に容器内包ガスよりも高圧の
同一ガスを供給する手段と、上記空間内におけるガスの
圧力変化を監視する手段とを備えた構成を特徴とする。
Further, in the pressure vessel according to the present invention, a sealing means which is multiply provided on the joint surface of the flange and forms a space therebetween, and the same gas having a higher pressure than the gas contained in the vessel is supplied into the space. And a means for monitoring a change in gas pressure in the space.

【0006】[0006]

【作用】即ち、本発明に係る圧力容器においては、フラ
ンジの接合面にシール手段が複数重に設けられ互いの間
に形成される空間内に容器内包ガスよりも高圧の同一ガ
スが供給されるようになっており、フランジの接合面に
設けられた二重のガスケットなどのシール手段により密
閉された空間内に外部から圧力容器の内部に内包される
ガスと同じガスを内部の圧力よりも高い圧力で供給する
ことにより圧力隔壁が形成されて機械的にも物理的にも
圧力容器の内部と外部とが隔離されフランジの接合面に
シール材を溶接により取付けることなく圧力容器内部の
ガスが外部へ漏洩するのが抑止される。
That is, in the pressure vessel according to the present invention, the sealing means is multiply provided on the joint surface of the flange, and the same gas having a higher pressure than the gas contained in the vessel is supplied into the space formed between the sealing means. The same gas as the gas contained in the pressure vessel from the outside in the space sealed by the sealing means such as double gaskets provided on the joint surface of the flange is higher than the internal pressure. By supplying with pressure, a pressure partition wall is formed, and the inside and outside of the pressure vessel are mechanically and physically separated from each other, and the gas inside the pressure vessel is released without welding the sealing material on the joint surface of the flange. Is prevented from leaking to.

【0007】また、本発明に係る圧力容器においては、
フランジの接合面にシール手段が複数重に設けられ互い
の間に形成される空間内に容器内包ガスよりも高圧の同
一ガスが供給されるとともに空間内におけるガスの圧力
変化が監視されるようになっており、フランジの接合面
に設けられた二重のガスケットなどのシール手段により
密閉された空間内に外部から圧力容器の内部に内包され
るガスと同じガスを内部の圧力よりも高い圧力で供給す
ることにより圧力隔壁が形成されて機械的にも物理的に
も圧力容器の内部と外部とが隔離されフランジの接合面
にシール材を溶接により取付けることなく圧力容器内部
のガスが外部へ漏洩するのが抑止される。また、空間内
におけるガスの圧力変化を監視することにより空間内に
おける圧力の降下時間が所定の期間よりも短い場合には
外部への漏洩が発生していると判断できガスケットなど
シール手段の劣化によるシール性能の低下が速やかに検
知される。
In the pressure vessel according to the present invention,
A plurality of sealing means are provided on the joint surface of the flange so that the same gas having a pressure higher than that of the gas contained in the container is supplied into the space formed between the sealing means and the pressure change of the gas in the space is monitored. In addition, the same gas as the gas contained inside the pressure vessel from the outside is sealed in the space sealed by the sealing means such as double gaskets provided on the joint surface of the flange at a pressure higher than the internal pressure. By supplying the pressure partition wall, the inside and outside of the pressure vessel are mechanically and physically separated from each other, and the gas inside the pressure vessel leaks to the outside without attaching the sealing material to the joint surface of the flange by welding. Is suppressed. Also, by monitoring the pressure change of the gas in the space, it can be determined that leakage to the outside has occurred if the pressure drop time in the space is shorter than the predetermined period, due to deterioration of the sealing means such as the gasket. The deterioration of the sealing performance is promptly detected.

【0008】[0008]

【実施例】図1および図2は本発明の一実施例に係る圧
力容器の説明図である。図において、本実施例に係る圧
力容器は原子力プラントに使用される例えば原子炉圧力
容器,1次ヘリウム循環機,補助ヘリウム循環機など1
次系の冷却材であるヘリウムガスを内包する圧力容器
で、そのフランジ1,5の接合面に設けた二重のガスケ
ット3により密閉された空間に外部から圧力容器内に内
包されるヘリウムガスと同じヘリウムガスを内部の圧力
よりも高い圧力で供給することにより圧力隔壁を形成
し、機械的にも物理的にも圧力容器の内部と外部とを隔
離するシール機構を有しており、このシール機構により
圧力容器内のヘリウムガスが外部へ漏洩するのを抑止す
るとともに供給されたヘリウムガスの圧力を常時監視し
て圧力が降下する時間からガスケット3等の劣化による
シール性能の低下を検知することができるようになって
いる。
1 and 2 are explanatory views of a pressure vessel according to an embodiment of the present invention. In the figure, the pressure vessel according to the present embodiment is used in a nuclear power plant, for example, a reactor pressure vessel, a primary helium circulator, an auxiliary helium circulator 1
A pressure vessel containing helium gas, which is a coolant for the next system, and a helium gas contained in the pressure vessel from the outside in a space sealed by a double gasket 3 provided on the joint surfaces of the flanges 1 and 5 By supplying the same helium gas at a pressure higher than the internal pressure, a pressure partition wall is formed, and there is a sealing mechanism that mechanically and physically separates the inside and the outside of the pressure vessel. The mechanism prevents the helium gas in the pressure vessel from leaking to the outside, and constantly monitors the pressure of the supplied helium gas to detect the deterioration of the sealing performance due to the deterioration of the gasket 3 etc. from the time when the pressure drops. You can do it.

【0009】即ち、図1に示すように圧力容器のフラン
ジ5の接合面には二重にガスケット溝4が設けられ、ガ
スケット3が収納されている。また、このフランジ5の
接合面と接合する他方のフランジ1の接合面には二重の
ガスケット溝4それぞれに嵌合する凸部が二重に設けら
れ、フランジ1,5は互いにボルト2で締付けられてい
る。圧力容器の側壁には連通穴が設けられて圧力計6が
取付けられており、その圧力信号を別に設置されている
制御装置9へ送るように構成されている。また、この連
通穴とは別にフランジ1,5と二重のガスケット3とに
より形成されている空間16に連通する穴が設けられ、
この穴にガスの供給設備が接続されている。このガスの
供給設備はガスの供給管17に圧力調節弁10と供給タ
ンク11とが備えられ、この供給タンク11には圧縮機
13を介して貯蔵タンク14から圧力容器が内包するヘ
リウムガスと同じヘリウムガスが供給されるように接続
されている。図における符号12は逆止弁、8は圧力計
で、供給タンク11内の圧力を圧力計8により検出して
制御装置15へ信号を送り、圧縮機13を適宜作動させ
ることによって供給タンク11内の圧力を所定の値以上
に保つようになっている。ガスの供給管17には圧力計
7が備えられており、その圧力信号が制御装置9へ送ら
れて圧力計6との圧力差を制御装置9が計算し、その圧
力差に基づいて圧力調節弁10を開閉することにより空
間16内の圧力が保持されるように構成されている。
That is, as shown in FIG. 1, the gasket groove 4 is doubly provided on the joint surface of the flange 5 of the pressure vessel, and the gasket 3 is accommodated therein. Further, on the joint surface of the other flange 1 which is joined to the joint surface of the flange 5, there are provided double convex portions which fit into the respective double gasket grooves 4, and the flanges 1 and 5 are fastened to each other with bolts 2. Has been. A communication hole is provided in the side wall of the pressure vessel, and a pressure gauge 6 is attached to the pressure vessel. The pressure signal of the pressure gauge 6 is sent to a separately installed control device 9. In addition to this communication hole, a hole communicating with the space 16 formed by the flanges 1 and 5 and the double gasket 3 is provided,
A gas supply facility is connected to this hole. This gas supply equipment is provided with a pressure control valve 10 and a supply tank 11 in a gas supply pipe 17, and this supply tank 11 is the same as the helium gas contained in a pressure container from a storage tank 14 via a compressor 13. It is connected to supply helium gas. In the drawing, reference numeral 12 is a check valve, and 8 is a pressure gauge. The pressure inside the supply tank 11 is detected by the pressure gauge 8 and a signal is sent to the control device 15 to operate the compressor 13 as appropriate to cause the inside of the supply tank 11. The pressure of is kept above a predetermined value. The gas supply pipe 17 is equipped with a pressure gauge 7, the pressure signal of which is sent to the control device 9 so that the pressure difference between the pressure gauge 6 and the pressure gauge 6 is calculated by the control device 9 and the pressure is adjusted based on the pressure difference. The pressure in the space 16 is maintained by opening and closing the valve 10.

【0010】フランジ5のガスケット溝4内に納められ
ているガスケット3はそれ自体でもシール機能を有し、
圧力容器の内部と外部とを隔離しているが、同時に二重
のガスケット3で囲まれて密閉された空間を形成してお
り、この空間16内に外部から圧力容器の内部よりも圧
力が高い、内包するヘリウムガスと同じヘリウムガスを
供給することにより圧力容器の内部と外部との間に圧力
隔壁が形成され、機械的にも物理的にも圧力容器の内部
と外部とが隔離される。ヘリウムガスの供給設備は、圧
力容器の内部の圧力P0 よりもガスケット3で仕切られ
た空間内の圧力P1 がΔP1 だけ高くなるように、圧力
計6,7からの信号により差圧を検出して制御装置9の
調節弁10により供給タンク11内に高圧に保持されて
いるヘリウムガスの供給を調節することにより行う。供
給タンク11内におけるヘリウムガスの高圧力保持は、
貯蔵タンク14内のヘリウムガスを圧縮機13により圧
縮して供給することにより行われる。圧縮機13の運転
は供給タンク11内の圧力P2 が一定となるように制御
装置15により行う。図2はガスケット3で仕切られた
空間内における圧力P1 の時間的変化を示しており、初
期に圧力容器内の圧力P0 よりもΔP1 だけ高い圧力P
1 に保持されたガスケット3で仕切られた空間内の圧力
はフランジ1,5の接合面からの漏洩量を実質的には零
にできないため、時間の経過とともに徐々に下降してt
1 時間後にはP0 よりもΔP2 だけ高い圧力P2 に達す
る。このΔP2 をガスケット3で仕切られた空間と圧力
容器内との差圧の最低値とし、圧力調節弁10の作動開
始圧力としておくことによりガスケット3で仕切られた
空間内の圧力が再上昇し、制御装置9によりP1 に保持
されて時刻t3 で圧力調節弁10が作動して全閉する。
その後、時間の経過とともに徐々に圧力P1 が下降して
上述の動作を繰り返す。ガスケット3等の劣化により許
容漏洩率を上回る量の漏洩が発生した場合の時間t2
3 は、許容漏洩率における時間t2 −t3 よりも短く
なる。従って、時間t2 −t3 を監視することによりガ
スケット3などの劣化によるシール性能の低下を検知す
ることができる。
The gasket 3 housed in the gasket groove 4 of the flange 5 has a sealing function by itself,
Although the inside and the outside of the pressure vessel are isolated, at the same time, a sealed space is formed by being surrounded by the double gasket 3, and the inside of the space 16 has a higher pressure than the inside of the pressure vessel. By supplying the same helium gas as the contained helium gas, a pressure partition wall is formed between the inside and the outside of the pressure vessel, and the inside and the outside of the pressure vessel are mechanically and physically isolated from each other. The helium gas supply equipment adjusts the differential pressure by the signals from the pressure gauges 6 and 7 so that the pressure P 1 in the space partitioned by the gasket 3 is higher than the pressure P 0 inside the pressure vessel by ΔP 1. This is performed by detecting and adjusting the supply of the helium gas held at a high pressure in the supply tank 11 by the control valve 10 of the control device 9. Maintaining a high pressure of helium gas in the supply tank 11
It is performed by compressing and supplying the helium gas in the storage tank 14 by the compressor 13. The operation of the compressor 13 is performed by the controller 15 so that the pressure P 2 in the supply tank 11 becomes constant. FIG. 2 shows the temporal change of the pressure P 1 in the space partitioned by the gasket 3, and the pressure P 1 initially higher than the pressure P 0 in the pressure vessel by ΔP 1.
Since the pressure in the space partitioned by the gasket 3 held at 1 cannot make the amount of leakage from the joint surface of the flanges 1 and 5 practically zero, it gradually decreases with time.
After one hour reaches the pressure P 2 higher by [Delta] P 2 than P 0. By setting this ΔP 2 as the minimum value of the differential pressure between the space partitioned by the gasket 3 and the inside of the pressure vessel and setting it as the operation starting pressure of the pressure control valve 10, the pressure in the space partitioned by the gasket 3 rises again. The pressure control valve 10 is held at P 1 by the control device 9 and is fully closed at time t 3 by actuation.
After that, the pressure P 1 gradually decreases with the lapse of time, and the above-described operation is repeated. Time t 2 when the amount of leakage exceeds the allowable leakage rate due to deterioration of the gasket 3 etc.
t 3 becomes shorter than the time t 2 −t 3 at the allowable leakage rate. Therefore, it is possible to detect deterioration of the seal performance due to deterioration such as the gasket 3 by monitoring the time t 2 -t 3.

【0011】従来の圧力容器においては、フランジの接
合面にシール材を溶接により取付けているため、メンテ
ナンス時などにフランジを解放する場合にはシール材の
除去、再取付けなどに多大な時間を要し、原子力プラン
トにおける1次系の圧力容器などの場合には被曝量が増
大する。また、メンテナンス時などにはフランジに設け
られているヘリウムガスの漏洩検出ラインに仮設の漏洩
検出設備を取付けてヘリウムガスの検出を行っている
が、原子力プラントの停止時にのみヘリウムガス漏洩の
確認を行うだけで、フランジを締め付けて運転を開始し
た後に熱サイクル等の影響を受けてガスケットに加わる
面圧が変化し内包するヘリウムガス等の漏洩が発生する
ことがあり、ヘリウムガス漏洩の発生時に速かに対応す
ることはできない。これに対し、本圧力容器においては
そのフランジ1,5の接合面に設けられた二重のガスケ
ット溝4にガスケット3を収納してボルト等で締付けら
れたシール機構を有しており、圧力容器内の圧力を検出
する圧力計6と、圧力調節弁10を備え二重のガスケッ
ト3間に圧力容器内と同じヘリウムガスを供給するガス
の供給設備と、二重のガスケット3間の圧力を検出する
圧力計7とを設け、これらの圧力計6,7の差に応じて
圧力調節弁10を介して圧力容器内の圧力よりも高い圧
力を二重のガスケット3間に供給することにより圧力容
器内のヘリウムガスの漏洩を抑止するようになってい
る。また、2つの圧力計6,7の差圧の低下が所定の時
間よりも短い場合には外部へ漏洩していると判断して圧
力容器内へのヘリウムガスの供給を停止して大量の漏洩
を防ぐことができる。これにより、圧力容器内の放射性
物質を含む1次系のヘリウムガスの漏洩が抑止されると
ともに、ガスケット3等の劣化によるシール性能の低下
が速かに検知される。また、フランジ1,5の接合面に
オメガシール等のシール材を溶接により取付ける必要が
なく、メンテナンス時などにおけるフランジ1,5の解
放、復旧に要する時間を低減することが可能である。
In the conventional pressure vessel, since the sealing material is attached to the joint surface of the flange by welding, it takes a lot of time to remove and reattach the sealing material when releasing the flange during maintenance. However, in the case of a primary system pressure vessel in a nuclear power plant, the exposure dose increases. Also, for maintenance, etc., helium gas is detected by installing temporary leak detection equipment on the helium gas leak detection line provided on the flange, but confirm helium gas leakage only when the nuclear plant is stopped. Just by performing the operation, after tightening the flange and starting the operation, the surface pressure applied to the gasket may change due to the influence of heat cycle, etc., and the contained helium gas, etc. may leak, and when the helium gas leaks, the I can't deal with crab. On the other hand, this pressure vessel has a sealing mechanism in which the gasket 3 is housed in the double gasket groove 4 provided on the joint surface of the flanges 1 and 5 and tightened with a bolt or the like. A pressure gauge 6 for detecting the internal pressure and a pressure control valve 10, and a gas supply facility for supplying the same helium gas as in the pressure vessel between the double gaskets 3 and the pressure between the double gaskets 3 are detected. And a pressure vessel 7 for supplying pressure higher than the pressure in the pressure vessel between the double gaskets 3 via the pressure control valve 10 according to the difference between the pressure gauges 6 and 7. It is designed to prevent the leakage of helium gas inside. If the decrease in the differential pressure between the two pressure gauges 6 and 7 is shorter than a predetermined time, it is determined that the pressure gauge is leaking to the outside and the supply of helium gas into the pressure vessel is stopped to cause a large amount of leakage. Can be prevented. As a result, the leakage of the primary system helium gas containing the radioactive substance in the pressure vessel is suppressed, and the deterioration of the sealing performance due to the deterioration of the gasket 3 and the like is quickly detected. Further, it is not necessary to attach a sealing material such as an omega seal to the joint surface of the flanges 1 and 5 by welding, and it is possible to reduce the time required to release and restore the flanges 1 and 5 at the time of maintenance.

【0012】[0012]

【発明の効果】本発明に係る圧力容器は前記のように構
成されており、フランジの接合面にシール材を溶接によ
り取付けることなく圧力容器内部のガスが外部へ漏洩す
るのが抑止されるので、メンテナンス時などにフランジ
を短時間で開放、復旧することが可能になる。
The pressure vessel according to the present invention is constructed as described above, and the gas inside the pressure vessel is prevented from leaking to the outside without attaching a sealing material to the joint surface of the flange by welding. It is possible to open and restore the flange in a short time during maintenance.

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

【図1】図1は本発明の一実施例に係る圧力容器の断面
図である。
FIG. 1 is a sectional view of a pressure vessel according to an embodiment of the present invention.

【図2】図2はその作用説明図である。FIG. 2 is an explanatory diagram of its operation.

【図3】図3は従来の圧力容器の断面図である。FIG. 3 is a sectional view of a conventional pressure vessel.

【符号の説明】[Explanation of symbols]

1 フランジ 2 ボルトナット 3 ガスケット 4 ガスケット溝 5 フランジ 6 圧力計 7 圧力計 8 圧力計 9 制御装置 10 圧力調節弁 11 供給タンク 12 逆止弁 13 圧縮機 14 貯蔵タンク 15 制御装置 16 空間 17 供給管 1 Flange 2 Bolt Nut 3 Gasket 4 Gasket Groove 5 Flange 6 Pressure Gauge 7 Pressure Gauge 8 Pressure Gauge 9 Control Device 10 Pressure Control Valve 11 Supply Tank 12 Check Valve 13 Compressor 14 Storage Tank 15 Control Device 16 Space 17 Supply Pipe

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 フランジの接合面に複数重に設けられ互
いの間に空間を形成するシール手段と、上記空間内に容
器内包ガスよりも高圧の同一ガスを供給する手段とを備
えたことを特徴とする圧力容器。
1. A seal means, which is multiply provided on a joint surface of a flange to form a space therebetween, and means for supplying the same gas having a pressure higher than that of a gas contained in the container into the space. Characteristic pressure vessel.
【請求項2】 上記空間内におけるガスの圧力変化を監
視する手段を備えたことを特徴とする請求項1に記載の
圧力容器。
2. The pressure vessel according to claim 1, further comprising means for monitoring a change in gas pressure in the space.
JP6110953A 1994-05-25 1994-05-25 Pressure vessel Withdrawn JPH07318683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6110953A JPH07318683A (en) 1994-05-25 1994-05-25 Pressure vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6110953A JPH07318683A (en) 1994-05-25 1994-05-25 Pressure vessel

Publications (1)

Publication Number Publication Date
JPH07318683A true JPH07318683A (en) 1995-12-08

Family

ID=14548728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6110953A Withdrawn JPH07318683A (en) 1994-05-25 1994-05-25 Pressure vessel

Country Status (1)

Country Link
JP (1) JPH07318683A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902439A2 (en) * 1997-09-11 1999-03-17 Siemens Aktiengesellschaft Leakage monitoring device and method of operating such a device
CN102279080A (en) * 2011-03-30 2011-12-14 苏州宝骅机械技术有限公司 Performance test device for sealing gasket of nuclear power equipment
CN102818021A (en) * 2012-09-05 2012-12-12 浙江大学 Pressure vessel door quickly-opened device with leakage on-line detection function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902439A2 (en) * 1997-09-11 1999-03-17 Siemens Aktiengesellschaft Leakage monitoring device and method of operating such a device
EP0902439A3 (en) * 1997-09-11 1999-06-23 Siemens Aktiengesellschaft Leakage monitoring device and method of operating such a device
CN102279080A (en) * 2011-03-30 2011-12-14 苏州宝骅机械技术有限公司 Performance test device for sealing gasket of nuclear power equipment
CN102818021A (en) * 2012-09-05 2012-12-12 浙江大学 Pressure vessel door quickly-opened device with leakage on-line detection function

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