DE202013007719U1 - Sealing plug for permanent sealing Kernflussmessgehäuserohre (lance tube) in the boiling water reactor of a nuclear power plant, after removal of the Kernflussmesslanzen from the out of the reactor - Google Patents
Sealing plug for permanent sealing Kernflussmessgehäuserohre (lance tube) in the boiling water reactor of a nuclear power plant, after removal of the Kernflussmesslanzen from the out of the reactor Download PDFInfo
- Publication number
- DE202013007719U1 DE202013007719U1 DE202013007719U DE202013007719U DE202013007719U1 DE 202013007719 U1 DE202013007719 U1 DE 202013007719U1 DE 202013007719 U DE202013007719 U DE 202013007719U DE 202013007719 U DE202013007719 U DE 202013007719U DE 202013007719 U1 DE202013007719 U1 DE 202013007719U1
- Authority
- DE
- Germany
- Prior art keywords
- sealing plug
- sealing
- plug according
- clamping sleeve
- threaded spindle
- 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 - Lifetime
Links
Images
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/06—Sealing-plugs
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
Dichtstopfen, dadurch gekennzeichnet, dass das zylindrische Dichtungsteil (5) mit Spannhülse (2) aus rostfreiem Stahl und Balgdichtung (4) aus EPDM verbunden durch die Gewindespindel (1) ins Lanzengehäuserohr (17) eingeschoben ist und die mit Teil 5 verschweißte Schutzkappe (10) das Lanzenschutzrohr (17) außen umschließt sowie mit der Flachdichtung (8) am Lanzengehäuserohrende (17) aufsitzt.Sealing plug, characterized in that the cylindrical sealing part (5) with clamping sleeve (2) made of stainless steel and bellows seal (4) made of EPDM connected by the threaded spindle (1) is inserted into the lance housing tube (17) and welded to part 5 protective cap (10 ) the lance protection tube (17) encloses the outside and with the flat gasket (8) on Lanzengehäuserohrende (17) is seated.
Description
Die Erfindung betrifft einen Dichtstopfen zum verschließen eines Lanzengehäuserohres in einem Reaktordruckbehälter eines Siedewasserreaktors, der aus der Lanzengehäuserohröffnung über dem unteren Kerngerüst des Reaktordruckbehälters teilweise herausragt.The invention relates to a sealing plug for closing a Lanzengehäuserohres in a reactor pressure vessel of a boiling water reactor, which partially protrudes from the Lanzengehäuserohröffnung over the lower core stand of the reactor pressure vessel.
Nach Ausbau der LVD-Lanze ist das Lanzengehäuserohr im Reaktordruckbehälter offen. Zum ausführen von Montagearbeiten an der Lanzengehäuserohröffnung im Steuerstabantriebsraum z. B. Demontage der Lanzenrohrentwässerungen, Montage des Blindflansches muss die Lanzengehäuserohröffnung im Reaktordruckbehälter (RDB) verschlossen werden. Die Lanzengehäuserohröffnungen im RDB haben alle die gleiche Abmessung und werden mit baugleichen Dichtstopfen verschlossen.After removing the LVD lance, the lance housing tube is open in the reactor pressure vessel. To perform assembly work on the Lanzengehäuserohröffnung in the control rod drive space z. B. Disassembly of the Lanzrohrentwässerungen, mounting the blind flange, the Lanzengehäuserohröffnung in the reactor pressure vessel (RDB) must be closed. The lance housing openings in the RPV are all the same size and are closed with identical sealing plugs.
Der Dichtstopfen wird mit einem Greifwerkzeug das formschlüssig am Sechskant der Gewindespindel ankoppelt und mittels Verlängerungstange von der Brennelementwechselbühne (BWB) aus in die Lanzengehäuserohröffnung im unteren Kerngerüst des RDB gesetzt. Durch definiertes Rechtsdrehen der Gewindespindel mit der Verlängerungsstange zieht die Gewindespindel durch die Gewindesteigung die Spannhülse Maßgenau in das Dichtungsteil und verformt die Balgdichtung. Dadurch ist eine definierte Spannkraft zwischen Lanzengehäuserohr und Spannhülse gegeben.The sealing plug is coupled with a gripping tool the form-fitting on the hexagon of the threaded spindle and set by means of extension rod from the fuel assembly platform (BWB) in the Lanzengehäuserohröffnung in the lower core framework of the RDB. By defined turning to the right of the threaded spindle with the extension rod, the threaded spindle pulls the clamping sleeve into the sealing part by means of the thread pitch and deforms the bellows seal. As a result, a defined clamping force between the lance housing tube and clamping sleeve is given.
Die Schutzkappe überdeckt die Lanzengehäuserohröffnung und verhindert den Eintrag von Schmutz sowie die Beschädigung der Lanzengehäuserohröffnung.The protective cap covers the lance housing tube opening and prevents the entry of dirt and damage to the lance housing tube opening.
Der Dichtstopfen ist demontierbar und durch die Formgebung kann er nicht in das Lanzengehäuserohr abgleiten und sich verlieren.The sealing plug is removable and the shape of it can not slide into the Lanzengehäuserohr and lose.
Die Erfindung wird durch die Zeichnungen erläutert:The invention is explained by the drawings:
Mit dem Dichtstopfen ist erstmals eine unverlierbare, sichere Abdichtung der Lanzengehäuserohröffnung im RDB bei ausgebauter LVD-Lanze entwickelt.For the first time, the sealing plug is used to create a captive, secure seal for the lance housing tube opening in the RPV with the LVD lance removed.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Gewindespindelscrew
- 22
- Spannhülseclamping sleeve
- 33
- Gleitscheibesliding disk
- 44
- Balgdichtungbellows seal
- 55
- Dichtungsteilsealing part
- 66
- Anschlagattack
- 77
- Verdrehsicherungtwist
- 88th
- Flachdichtunggasket
- 99
- O-RingO-ring
- 1010
- Schutzkappeprotective cap
- 1212
- Steuerstabantriebsraum (SAR)Control rod drive compartment (SAR)
- 1313
- Reaktordruckbehälter (RDB)Reactor pressure vessel (RPV)
- 1414
- Kalottedome
- 1515
- Durchführungexecution
- 1616
- Kerngerüst (Unteres Kerngerüst, UKG)Core framework (lower core framework, UKG)
- 1717
- Lanzengehäuserohr (Lanzenrohr)Lance housing tube (lance tube)
- 1818
- Zentrierstift (im UKG)Centering pin (in the UKG)
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202013007719U DE202013007719U1 (en) | 2013-08-29 | 2013-08-29 | Sealing plug for permanent sealing Kernflussmessgehäuserohre (lance tube) in the boiling water reactor of a nuclear power plant, after removal of the Kernflussmesslanzen from the out of the reactor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202013007719U DE202013007719U1 (en) | 2013-08-29 | 2013-08-29 | Sealing plug for permanent sealing Kernflussmessgehäuserohre (lance tube) in the boiling water reactor of a nuclear power plant, after removal of the Kernflussmesslanzen from the out of the reactor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202013007719U1 true DE202013007719U1 (en) | 2013-10-30 |
Family
ID=49668312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202013007719U Expired - Lifetime DE202013007719U1 (en) | 2013-08-29 | 2013-08-29 | Sealing plug for permanent sealing Kernflussmessgehäuserohre (lance tube) in the boiling water reactor of a nuclear power plant, after removal of the Kernflussmesslanzen from the out of the reactor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202013007719U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108766594A (en) * | 2018-07-20 | 2018-11-06 | 中广核研究院有限公司 | A kind of novel reaction heap hanging basket outlet tube seal structure |
-
2013
- 2013-08-29 DE DE202013007719U patent/DE202013007719U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108766594A (en) * | 2018-07-20 | 2018-11-06 | 中广核研究院有限公司 | A kind of novel reaction heap hanging basket outlet tube seal structure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20131219 |
|
R156 | Lapse of ip right after 3 years |