EP0874966A1 - Steam line - Google Patents

Steam line

Info

Publication number
EP0874966A1
EP0874966A1 EP97906991A EP97906991A EP0874966A1 EP 0874966 A1 EP0874966 A1 EP 0874966A1 EP 97906991 A EP97906991 A EP 97906991A EP 97906991 A EP97906991 A EP 97906991A EP 0874966 A1 EP0874966 A1 EP 0874966A1
Authority
EP
European Patent Office
Prior art keywords
valve
housing
steam line
wall
additional
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.)
Granted
Application number
EP97906991A
Other languages
German (de)
French (fr)
Other versions
EP0874966B1 (en
Inventor
Hermann-Josef Conrads
Erwin Laurer
Jürgen MODEL
Rainer Schilling
Michael Seiter
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.)
Areva GmbH
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0874966A1 publication Critical patent/EP0874966A1/en
Application granted granted Critical
Publication of EP0874966B1 publication Critical patent/EP0874966B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
    • F22B37/44—Applications, arrangements, or dispositions of alarm or automatic safety devices of safety valves
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6966—Static constructional installations
    • Y10T137/6969—Buildings
    • Y10T137/698—Wall

Definitions

  • the invention relates to a steam line leading through a wall in a steam power plant, in particular in a nuclear power plant, which forms a fixed point for the introduction of force and moment with the wall, a main line at the fixed point with the steam line without the interposition of a high-pressure pipe.
  • valve is connected and at least one satellite valve, which has a smaller nominal diameter than the main valve, is attached to the housing of the main valve without the interposition of a high-pressure pipe.
  • Such a steam line is known from DE 27 08 642 C3.
  • This steam line is led through the wall of a safety cover of a nuclear power plant. It is based on a steam generator within the safety envelope. When passing through the wall, the steam line forms a fixed point with the wall. For this purpose, a conical support body is available, among other things. This fixed point serves to introduce forces and moments from the steam line into the wall, so that damage to the steam line is avoided.
  • Satellite valve is directly connected to the main valve without the interposition of a pipe section.
  • the nominal width of a satellite valve is smaller than the nominal width of the main valve.
  • the invention was based on the object of specifying a steam line, in which no special devices for support are necessary even for such additional valves.
  • At least one additional valve is attached with its housing to the housing of a satellite valve without the interposition of a high-pressure pipe and without support.
  • the housings of several additional valves form a row and only the housing of the first additional valve in the row is attached to the housing of a satellite valve. This has the advantage that even more additional valves than usual with a satellite valve without Interposition of a high pressure pipe can be connected.
  • At least one additional valve can also be attached to the housing of an additional valve with its housing without intermediate connection of a high-pressure pipe and without support.
  • a row can also be formed from supplementary valves and these can be fastened to a housing of an additional valve. The arrangement and attachment are carried out in the same way as for the series of additional valves.
  • the advantage of the steam line according to the invention is that all the valves connected to such a steam line can be held securely at only one fixed point in the wall. Forces and moments that act on the valve group are advantageously introduced into the wall at only one fixed point.
  • FIG. 1 shows a plan view of the arrangement
  • FIG. 2 shows a longitudinal section along the line A to B in FIG. 1
  • the drawing shows a steam line 1 which, coming from a steam generator (not shown), is led through a wall 2 of the safety casing of a nuclear power plant.
  • a conical support body 3 is provided, by means of which the steam line 1 is supported on the wall 2 in the passage.
  • forces and moments that act on the steam line 1 are entered into the wall 2.
  • the housing of a main valve 4 is connected directly to the duct at the fixed point with the steam line 1 without the interposition of a high-pressure pipe.
  • Main valves 4 are also connected to the housing of satellite valves 5 to 7 without the interposition of a high-pressure pipe.
  • the center points of the satellite valves 5 to 7 lie on circles around the center of the main valve 4.
  • valves can also be lined up to form a row and their housings connected to one another.
  • the housing of the first additional valve from this series is attached to the housing of a satellite valve 5 to 7 without the interposition of a high-pressure pipe.
  • One or more such rows can be attached to each satellite valve 5, 6.
  • At least one additional valve and / or one or more rows of additional valves which can be connected to one another in the same way as additional valves, are attached to the housing of an additional valve 8, 9.
  • the entire valve arrangement shown makes it possible for forces and moments acting on it to be entered into the wall 2 via the fixed point shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Pipeline Systems (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Valve Housings (AREA)

Abstract

The invention concerns a steam line (1) designed to pass through a wall (2) in a steam power station, the steam line forming an anchorage point with the wall (2). A main valve (4) is connected directly to the line (1) at the anchorage point. Attached to the main-valve housing is at least one secondary valve (5 to 7). The invention calls for at least one additional valve (8, 9) to be mounted on the housing of a secondary valve (5 to 7) without any high-pressure piping between them and without any support.

Description

Beschreibungdescription
DampfleitungSteam pipe
Die Erfindung betrifft eine durch eine Wand führende Dampf¬ leitung in einem Dampfkraftwerk, insbesondere in einem Kern¬ kraftwerk, die mit der Wand einen Festpunkt für Kraft- und Momenteinleitung bildet, wobei am Festpunkt mit der Dampflei¬ tung ohne Zwischenschaltung eines Hochdruckrohres ein Haupt- ventil verbunden ist und am Gehäuse des Hauptventilε minde¬ stens ein Satellitenventil, das eine kleinere Nennweite als das Hauptventil hat,ohne Zwischenschaltung eines Hochdruck¬ rohres befestigt ist.The invention relates to a steam line leading through a wall in a steam power plant, in particular in a nuclear power plant, which forms a fixed point for the introduction of force and moment with the wall, a main line at the fixed point with the steam line without the interposition of a high-pressure pipe. valve is connected and at least one satellite valve, which has a smaller nominal diameter than the main valve, is attached to the housing of the main valve without the interposition of a high-pressure pipe.
Eine solche Dampfleitung ist aus der DE 27 08 642 C3 bekannt. Diese Dampfleitung ist durch die Wand einer Sicherheitshülle eines Kernkraftwerkes hindurchgeführt. Sie geht innerhalb der Sicherheitshülle von einem Dampferzeuger aus. In der Durch¬ führung durch die Wand bildet die Dampfleitung mit der Wand einen Festpunkt. Dazu ist unter anderem ein konischer Stütz¬ körper vorhanden. Dieser Festpunkt dient dazu, Kräfte und Mo¬ mente von der Dampfleitung in die Wand einzuleiten, so daß Beschädigungen der Dampfleitung vermieden werden.Such a steam line is known from DE 27 08 642 C3. This steam line is led through the wall of a safety cover of a nuclear power plant. It is based on a steam generator within the safety envelope. When passing through the wall, the steam line forms a fixed point with the wall. For this purpose, a conical support body is available, among other things. This fixed point serves to introduce forces and moments from the steam line into the wall, so that damage to the steam line is avoided.
Aus der DE 27 08 642 C3 ist bekannt, daß außerhalb der Wand direkt mit dem Festpunkt das Gehäuse eines Hauptventils ver¬ bunden ist. Mit diesem Gehäuse sind unmittelbar die Gehäuse mehrerer anderer Ventile verbunden. Diese anderen Ventile können Satellitenventile genannt werden, da sie auf Kreisen um den Mittelpunkt des Hauptventils angeordnet sind. JedesIt is known from DE 27 08 642 C3 that the housing of a main valve is connected directly to the fixed point outside the wall. The housing of several other valves are directly connected to this housing. These other valves can be called satellite valves because they are arranged in circles around the center of the main valve. each
Satellitenventil steht unmittelbar ohne Zwischenschaltung ei¬ nes Rohrstückes mit dem Hauptventil in Verbindung. Die Nenn¬ weite eines Satellitenventils ist dabei kleiner als die Nenn¬ weite des Hauptventils.Satellite valve is directly connected to the main valve without the interposition of a pipe section. The nominal width of a satellite valve is smaller than the nominal width of the main valve.
Durch diese sogenannte Satellitenanordnung von Ventilen an der Dampfleitung werden die Kräfte und Momente, die auf die Satellitenventile einwirken, am genannten Festpunkt in die Wand eingetragen. Es sind keine zusätzlichen Abstützungen notwendig.Through this so-called satellite arrangement of valves on the steam line, the forces and moments on the Act satellite valves, entered in the wall at the specified fixed point. No additional supports are necessary.
Bisher war es üblich, erforderliche zusätzliche Ventile, die am Gehäuse des Hauptventils keinen Platz finden, separat zu lagern. Dazu waren eigene Abstützungen für diese zusätzlichen Ventile erforderlich. Darüber hinaus mußten Vorkehrungen ge¬ troffen werden, daß notwendige Leitungen zwischen Ventilen, die am Festpunkt abgestützt sind einerseits und zusätzliche Ventilen andererseits durch eingeleitete Kräfte und Momente nicht beschädigt werden können.Until now, it was customary to store required additional valves, which have no space on the housing of the main valve, separately. This required separate supports for these additional valves. In addition, precautions had to be taken that necessary lines between valves, which are supported at the fixed point, on the one hand, and additional valves, on the other hand, cannot be damaged by the forces and moments introduced.
Der Erfindung lag die Aufgabe zu Grunde, eine Dampfleitung anzugeben, bei der auch für solche zusätzlichen Ventile keine besonderen Vorrichtungen zum Abstützen notwendig sind.The invention was based on the object of specifying a steam line, in which no special devices for support are necessary even for such additional valves.
Die Aufgabe wird nach der Erfindung dadurch gelöst, daß am Gehäuse eines Satellitenventils mindestens ein zusätzliches Ventil mit seinem Gehäuse ohne Zwischenschaltung eines Hoch¬ druckrohres und ohne Abstützung befestigt ist.The object is achieved according to the invention in that at least one additional valve is attached with its housing to the housing of a satellite valve without the interposition of a high-pressure pipe and without support.
Es hat sich überraschenderweise herausgestellt, daß auch bei einer Ventilanordnung, bei der die bekannte Satellitenanord- nung durch zusätzliche Ventile an den Satellitenventilen in der geschilderten Weise ergänzt ist, einwirkende Kräfte und Momente problemlos am vorhandenen Festpunkt in die Wand ein¬ getragen werden können. Damit wird der Vorteil erzielt, daß eine deutlich größere Anzahl Ventile als bisher an einem Festpunkt gehalten werden kann. Man kommt ohne aufwendige zu¬ sätzliche schwingungssichere Abstützungen aus.It has surprisingly been found that even in a valve arrangement in which the known satellite arrangement is supplemented by additional valves on the satellite valves in the manner described, acting forces and moments can be easily entered into the wall at the existing fixed point. This has the advantage that a significantly larger number of valves than before can be held at a fixed point. One does not need complex additional vibration-proof supports.
Beispielsweise bilden die Gehäuse mehrerer zusätzlicher Ven¬ tile eine Reihe und nur das Gehäuse des ersten zusätzlichen Ventils in der Reihe ist am Gehäuse eines Satellitenventils befestigt. Damit wird der Vorteil erzielt, daß noch mehr zu¬ sätzliche Ventile als sonst mit einem Satellitenventil ohne Zwischenschaltung eines Hochdruckrohres verbunden werden kön¬ nen.For example, the housings of several additional valves form a row and only the housing of the first additional valve in the row is attached to the housing of a satellite valve. This has the advantage that even more additional valves than usual with a satellite valve without Interposition of a high pressure pipe can be connected.
Es kann auch am Gehäuse eines zusätzlichen Ventils mindestens ein ergänzendes Ventil mit seinem Gehäuse ohne Zwischenschal¬ tung eines Hochdruckrohres und ohne Abstützung befestigt sein. Ebenso kann aus ergänzenden Ventilen eine Reihe gebil¬ det und diese an einem Gehäuse eines zusätzlichen Ventils be¬ festigt sein. Die Anordnung und die Befestigung sind dabei analog zur Reihe aus zusätzlichen Ventilen ausgeführt.At least one additional valve can also be attached to the housing of an additional valve with its housing without intermediate connection of a high-pressure pipe and without support. A row can also be formed from supplementary valves and these can be fastened to a housing of an additional valve. The arrangement and attachment are carried out in the same way as for the series of additional valves.
Mit der Dampfleitung nach der Erfindung wird der Vorteil er¬ zielt, daß alle mit einer solchen Dampfleitung verbundenen Ventile an nur einem Festpunkt in der Wand sicher gehalten werden können. Kräfte und Momente, die auf die Ventilgruppe einwirken, werden vorteilhafterweise an nur einem Festpunkt in die Wand eingeleitet.The advantage of the steam line according to the invention is that all the valves connected to such a steam line can be held securely at only one fixed point in the wall. Forces and moments that act on the valve group are advantageously introduced into the wall at only one fixed point.
Die Dampfleitung nach der Erfindung zusammen mit der mit ihr in Verbindung stehenden Ventilanordung wird an Hand der Zeichnung näher erläutert:The steam line according to the invention together with the valve arrangement connected to it is explained in more detail with reference to the drawing:
FIG 1 zeigt eine Draufsicht auf die Anordnung FIG 2 zeigt einen Längsschnitt entlang der Linie A bis B in FIG 11 shows a plan view of the arrangement FIG. 2 shows a longitudinal section along the line A to B in FIG. 1
Die Zeichnung zeigt eine Dampfleitung 1, die von einem nicht gezeigten Dampferzeuger kommend durch eine Wand 2 der Sicher¬ heitshülle eines Kernkraftwerkes hindurchgeführt ist. Zur Bildung eines Festpunktes in der Durchführung durch die Wand 2 ist ein konischer Stützkörper 3 vorhanden, durch den die Dampfleitung 1 in der Durchführung an der Wand 2 abgestützt ist. Am Festpunkt werden Kräfte und Momente, die auf die Dampfleitung 1 einwirken, in die Wand 2 eingetragen. Unmit- telbar an der Durchführung ist am Festpunkt mit der Dampflei¬ tung 1 ohne Zwischenschaltung eines Hochdruckrohres das Ge¬ häuse eines Hauptventileε 4 verbunden. Mit dem Gehäuse dieses Hauptventiles 4 sind ebenfalls ohne Zwischenschaltung eines Hochdruckrohres die Gehäuse von Satellitenventilen 5 bis 7 verbunden. Die Mittelpunkte der Satellitenventile 5 bis 7 liegen auf Kreisen um den Mittelpunkt des Hauptventils 4.The drawing shows a steam line 1 which, coming from a steam generator (not shown), is led through a wall 2 of the safety casing of a nuclear power plant. To form a fixed point in the passage through the wall 2, a conical support body 3 is provided, by means of which the steam line 1 is supported on the wall 2 in the passage. At the fixed point, forces and moments that act on the steam line 1 are entered into the wall 2. The housing of a main valve 4 is connected directly to the duct at the fixed point with the steam line 1 without the interposition of a high-pressure pipe. With the housing of this Main valves 4 are also connected to the housing of satellite valves 5 to 7 without the interposition of a high-pressure pipe. The center points of the satellite valves 5 to 7 lie on circles around the center of the main valve 4.
Falls für zusätzliche noch notwendige Ventile kein Platz mehr am Gehäuse des Hauptventiles 4 vorhanden sein sollte, ist bei der Dampfleitung nach der Erfindung am Gehäuse eines Satelli¬ tenventiles 5 bis 7, mindestens ein zusätzliches Ventil 8, 9 ohne Zwischenschaltung eines Hochdruckrohres und ohne Unter¬ stützung befestigt.If there is no more space on the housing of the main valve 4 for additional valves which are still necessary, in the steam line according to the invention there is at least one additional valve 8, 9 on the housing of a satellite valve 5 to 7 without the interposition of a high-pressure pipe and without a sub-valve support attached.
Es können auch mehrere zusätzliche Ventile eine Reihe bildend aneinander aufgereiht und ihre Gehäuse miteinander verbunden sein. Dabei ist das Gehäuse des ersten zusätzlichen Ventiles aus dieser Reihe ohne Zwischenschaltung eines Hochdruckrohres am Gehäuse eines Satellitenventiles 5 bis 7, befestigt. Es können eine oder mehrere solcher Reihen an jedem Satelliten¬ ventil 5, 6 befestigt sein.Several additional valves can also be lined up to form a row and their housings connected to one another. The housing of the first additional valve from this series is attached to the housing of a satellite valve 5 to 7 without the interposition of a high-pressure pipe. One or more such rows can be attached to each satellite valve 5, 6.
Es ist sogar möglich, daß mindestens ein ergänzendes Ventil und/oder ein oder mehrere Reihen aus ergänzenden Ventilen, die in gleicher Weise wie zusätzliche Ventile miteinander verbunden sein können, am Gehäuse eines zusätzlichen Ventils 8, 9 befestigt sind.It is even possible that at least one additional valve and / or one or more rows of additional valves, which can be connected to one another in the same way as additional valves, are attached to the housing of an additional valve 8, 9.
Die gesamte gezeigte Ventilanordnung ermöglicht es, daß auf sie einwirkende Kräfte und Momente über den gezeigten Fest¬ punkt in die Wand 2 eingetragen werden. The entire valve arrangement shown makes it possible for forces and moments acting on it to be entered into the wall 2 via the fixed point shown.

Claims

Patentansprüche claims
1. Durch eine Wand (2) führende Dampfleitung (1) in einem Dampfkraftwerk, insbesondere in einem Kernkraftwerk, die mit der Wand (2) einen Festpunkt für Kraft- und Momenteinleitung bildet, wobei am Festpunkt mit der Dampfleitung (1) ohne Zwi¬ schenschaltung eines Hochdruckrohres ein Hauptventil (4) ver¬ bunden ist und am Gehäuse des Hauptventils (4) mindestens ein Satellitenventil (5 bis 7), das eine kleinere Nennweite als das Hauptventil (4) hat, ohne Zwischenschaltung eines Hoch¬ druckrohres befestigt ist, d a d u r c h g e k e n n z e i c h n e t, daß am Gehäuse eines Satellitenventils (5 bis 7) mindestens ein zusätzliches Ventil (8, 9) mit seinem Gehäuse ohne Zwischenschaltung eines Hochdruckrohres und ohne Abstützung befestigt ist.1. Through a wall (2) leading steam line (1) in a steam power plant, in particular in a nuclear power plant, which forms a fixed point for the introduction of force and torque with the wall (2), with the steam line (1) at the fixed point without intermediate circuit of a high-pressure pipe, a main valve (4) is connected and at least one satellite valve (5 to 7), which has a smaller nominal diameter than the main valve (4), is attached to the housing of the main valve (4) without the interposition of a high-pressure pipe, characterized in that at least one additional valve (8, 9) is attached to the housing of a satellite valve (5 to 7) with its housing without the interposition of a high-pressure pipe and without support.
2. Durch eine Wand (2) führende Dampfleitung (1) nach An¬ spruch 1, d a d u r c h g e k e n n z e i c h n e t, daß Gehäuse meh- rerer zusätzlicher Ventile eine Reihe bildend aneinander auf¬ gereiht sind und daß das Gehäuse des ersten zusätzlichen Ven¬ tils der Reihe ohne Zwischenschaltung eines Hochdruckrohres am Gehäuse eines Satellitenventils (5 bis 7) befestigt ist.2. Through a wall (2) leading steam line (1) according to claim 1, characterized in that the housing of several additional valves are lined up to form a row and that the housing of the first additional valve of the series without intermediate connection a high pressure pipe is attached to the housing of a satellite valve (5 to 7).
3. Durch eine Wand (2) führende Dampfleitung (1) nach einem der Ansprüche 1 oder 2, d a d u r c h g e k e n n z e i c h n e t, daß am Gehäuse eines zusätzlichen Ventils (8, 9) mindestens ein ergänzendes Ventil mit seinem Gehäuse ohne Zwischenschaltung eines Hoch- druckrohres und ohne Abstützung befestigt ist.3. Through a wall (2) leading steam line (1) according to one of claims 1 or 2, characterized in that on the housing of an additional valve (8, 9) at least one additional valve with its housing without the interposition of a high-pressure pipe and without support is attached.
4. Durch eine Wand (2) führende Dampfleitung (1) nach An¬ spruch 3, d a d u r c h g e k e n n z e i c h n e t, daß Gehäuse meh- rerer ergänzender Ventile eine Reihe bildend aneinander auf¬ gereiht sind und daß das Gehäuse des ersten ergänzenden Ven- tils der Reihe ohne Zwischenschaltung eines Hochdruckrohres am Gehäuse eines zusätzlichen Ventils (8, 9) befestigt ist. 4. Through a wall (2) leading steam line (1) according to claim 3, characterized in that the housing of several additional valves are lined up to form a row and that the housing of the first additional valve. tils of the series is attached to the housing of an additional valve (8, 9) without the interposition of a high pressure pipe.
EP97906991A 1996-01-19 1997-01-09 Steam line Expired - Lifetime EP0874966B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19601886 1996-01-19
DE1996101886 DE19601886C1 (en) 1996-01-19 1996-01-19 Steam pipe
PCT/DE1997/000028 WO1997026484A1 (en) 1996-01-19 1997-01-09 Steam line

Publications (2)

Publication Number Publication Date
EP0874966A1 true EP0874966A1 (en) 1998-11-04
EP0874966B1 EP0874966B1 (en) 2000-10-11

Family

ID=7783194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97906991A Expired - Lifetime EP0874966B1 (en) 1996-01-19 1997-01-09 Steam line

Country Status (6)

Country Link
US (1) US6011826A (en)
EP (1) EP0874966B1 (en)
JP (1) JP2000503755A (en)
DE (2) DE19601886C1 (en)
ID (1) ID16584A (en)
WO (1) WO1997026484A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6718997B2 (en) 2002-07-08 2004-04-13 Trigen Boston Energy Corporation Metering and pressure reduction piping system
DE10333339A1 (en) * 2003-07-23 2005-02-24 Framatome Anp Gmbh Pressure relief device for use on pressure bearing systems of power plants

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT356766B (en) * 1974-01-25 1980-05-27 Kraftwerk Union Ag Fresh steam shut-off device for pressurized water reactors
DE2409867B2 (en) * 1974-03-01 1977-12-01 Kraftwerk Union AG, 4330 Mülheim SHUT-OFF AND SAFETY DEVICE FOR THE FRESH STEAM PIPES OF A STEAM GENERATOR
DE2531168B2 (en) * 1975-07-11 1977-04-28 Kraftwerk Union AG, 4330 Mülheim NUCLEAR REACTOR PLANT
DE2701472C3 (en) * 1977-01-14 1980-07-10 Kraftwerk Union Ag, 4330 Muelheim Device for coupling pipelines in nuclear reactor pressure vessels, especially in boiling water reactors
DE2708642C3 (en) * 1977-02-28 1986-04-17 Kraftwerk Union AG, 4330 Mülheim Steam pipe
CH625030A5 (en) * 1977-02-28 1981-08-31 Kraftwerk Union Ag
DE2740761C3 (en) * 1977-09-09 1986-11-13 Kraftwerk Union AG, 4330 Mülheim Steam pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9726484A1 *

Also Published As

Publication number Publication date
WO1997026484A1 (en) 1997-07-24
JP2000503755A (en) 2000-03-28
ID16584A (en) 1997-10-16
EP0874966B1 (en) 2000-10-11
DE59702455D1 (en) 2000-11-16
US6011826A (en) 2000-01-04
DE19601886C1 (en) 1997-08-07

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