WO2004090911A2 - Verfahren und vorrichtung zum zerlegen eines steuerelementes eines siedewasserreaktors - Google Patents
Verfahren und vorrichtung zum zerlegen eines steuerelementes eines siedewasserreaktors Download PDFInfo
- Publication number
- WO2004090911A2 WO2004090911A2 PCT/EP2004/001721 EP2004001721W WO2004090911A2 WO 2004090911 A2 WO2004090911 A2 WO 2004090911A2 EP 2004001721 W EP2004001721 W EP 2004001721W WO 2004090911 A2 WO2004090911 A2 WO 2004090911A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control element
- cutting
- rollers
- boiling water
- sheets
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/34—Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing ; Apparatus or processes for dismantling strings of spent fuel elements
- G21C19/36—Mechanical means only
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Definitions
- the invention relates to a method and a device for disassembling a control element of a boiling water reactor.
- No. 5,055,236 A therefore proposes sawing the control elements axially along the center axis into two halves, each of which consists of two control element blades arranged at right angles to one another.
- the invention is based on the object of specifying a method for disassembling a control element of a boiling water reactor in which as little secondary waste as possible arises and the release of neutron absorber material is largely avoided.
- the invention is based on the object of specifying a device for carrying out the method.
- the first-mentioned object is achieved according to the invention with a method having the features of claim 1. Since, according to these features, two control element sheets lying opposite one another are each separated from the other two control element sheets along a longitudinally extending cutting line arranged near the longitudinal axis , d. H. If the dividing or cutting line runs in the cruciform core body of the control element, damage to the neutron absorber material containing it becomes
- control element sheets After the two control element sheets have been separated, they can be placed on the control element sheets which have not been separated, so that space-saving compacting is possible when the speed limiter is removed.
- the roller cut is carried out on both flat sides of the control element sheet with roller blades positioned against one another. In this way, the depth of cut required for each slitter is halved and the pressing forces required for cutting are reduced.
- FIG. 1 shows a schematic overall representation of a device according to the invention
- FIG. 2 shows a schematic cross section through a control element with cutting rollers of the device according to the invention attached to it
- Fig. 3 shows a cross section through the control element, with adjacent guide rollers of the device also in a schematic representation.
- the device contains a cutting unit 2 with four cutting rollers 4, which are in pairs in the working position on opposite control element sheets 6a, c of a control element 6.
- the cutting unit 2 is arranged in a frame 8 which surrounds the control element 6 and which absorbs the contact forces which occur during cutting in a closed manner.
- the relative movement between the control element 6 and the cutting unit 2 in the direction of the longitudinal center axis of the control element 6 takes place either by moving the control element 6 with the cutting unit 2 at rest, for example with a lifting mechanism, or by moving the entire device along the resting control element 2.
- control element 6 contains four control element sheets 6a-d, starting from a cruciform, solid core body 10, in the hollow spaces of which neutron absorbers, for example absorber tubes 12 filled with boron carbide BC 4 (illustrated by the control element sheets 6a, b) or, in an alternative embodiment, absorber sheets 14 made of hafnium Hf (illustrated using control element sheets 6c, d) are introduced.
- neutron absorbers for example absorber tubes 12 filled with boron carbide BC 4 (illustrated by the control element sheets 6a, b) or, in an alternative embodiment, absorber sheets 14 made of hafnium Hf (illustrated using control element sheets 6c, d) are introduced.
- the operation of the device is illustrated more clearly in FIG.
- the cutting rollers 4 are placed in the area of the core body 10 on the flat sides of the control element blades 6a and 6c in pairs and opposite each other in the direction of the arrows 16.
- a roll cut is made in a longitudinal direction, ie perpendicular to the plane of the drawing and Cut line S extending parallel to the longitudinal center axis A in the vicinity of the crossing point or in the vicinity of the longitudinal center axis A.
- the adjustment paths of the two opposite cutting rollers 4 are limited to such an extent that it is no longer possible to touch their cutting front edges.
- the adjusting movement of the cutting rollers 4 perpendicular to the flat sides of the control element sheets 6a, c to be separated is carried out in the exemplary embodiment with hydraulic cylinders.
- the exemplary embodiment with hydraulic cylinders.
- a single cutting roller 4 can also be provided for each of the two control blades 6a, c to be separated, which is assigned a cutting-edge counter roller which is applied flatly to the control element blade 6a or c is.
- a guide 20 is provided on both sides of the cutting unit according to FIG. 3, as seen in the longitudinal direction of the control element 2, each consisting of four guide rollers 22 aligned diagonally to the longitudinal central axis A.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Shearing Machines (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20040713465 EP1525589B1 (de) | 2003-04-08 | 2004-02-21 | Verfahren und vorrichtung zum zerlegen eines steuerelementes eines siedewasserreaktors |
DE200450010761 DE502004010761D1 (de) | 2003-04-08 | 2004-02-21 | Verfahren und vorrichtung zum zerlegen eines steuerelementes eines siedewasserreaktors |
JP2006504446A JP4455583B2 (ja) | 2003-04-08 | 2004-02-21 | 沸騰水形原子炉の制御要素の解体方法と装置 |
US11/043,331 US20050220254A1 (en) | 2003-04-08 | 2005-01-26 | Method and device for dismantling a control element of a boiling water reactor |
US12/604,756 US20100046691A1 (en) | 2003-04-08 | 2009-10-23 | Method for dismantling a control element of a boiling water reactor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003116248 DE10316248B4 (de) | 2003-04-08 | 2003-04-08 | Verfahren und Vorrichtung zum Zerlegen eines Steuerelementes eines Siedewasserreaktors |
DE10316248.8 | 2003-04-08 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/043,331 Continuation US20050220254A1 (en) | 2003-04-08 | 2005-01-26 | Method and device for dismantling a control element of a boiling water reactor |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004090911A2 true WO2004090911A2 (de) | 2004-10-21 |
WO2004090911A3 WO2004090911A3 (de) | 2004-11-25 |
Family
ID=33154133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/001721 WO2004090911A2 (de) | 2003-04-08 | 2004-02-21 | Verfahren und vorrichtung zum zerlegen eines steuerelementes eines siedewasserreaktors |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1525589B1 (de) |
JP (1) | JP4455583B2 (de) |
DE (2) | DE10316248B4 (de) |
ES (1) | ES2339247T3 (de) |
TW (1) | TWI254321B (de) |
WO (1) | WO2004090911A2 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2942406A1 (de) * | 1978-10-20 | 1980-05-08 | Hitachi Ltd | Vorrichtung zum schneiden einer rohrfoermigen huelse fuer ein brennelementbuendel |
US4747995A (en) * | 1985-06-10 | 1988-05-31 | Widder Corporation | Velocity limiter shear for BWR control rods |
US5055236A (en) * | 1985-09-16 | 1991-10-08 | Krieg Adrian H | Method and apparatus for underwater remote controlled radioactive waste reduction of boiling water nuclear reactor control rods |
DE4017987A1 (de) * | 1990-06-05 | 1991-12-12 | Battelle Institut E V | Verfahren zur konditionierung verbrauchter steuerelemente und brennelementkaesten aus siedewasserreaktoren |
EP0853320A2 (de) * | 1997-01-10 | 1998-07-15 | Siemens Aktiengesellschaft | Verdichtung zu entsorgender Steuer- und Absorberelemente aus Leichtwasser-Reaktoren |
-
2003
- 2003-04-08 DE DE2003116248 patent/DE10316248B4/de not_active Expired - Fee Related
-
2004
- 2004-02-21 WO PCT/EP2004/001721 patent/WO2004090911A2/de active Application Filing
- 2004-02-21 DE DE200450010761 patent/DE502004010761D1/de not_active Expired - Lifetime
- 2004-02-21 ES ES04713465T patent/ES2339247T3/es not_active Expired - Lifetime
- 2004-02-21 EP EP20040713465 patent/EP1525589B1/de not_active Expired - Lifetime
- 2004-02-21 JP JP2006504446A patent/JP4455583B2/ja not_active Expired - Fee Related
- 2004-03-22 TW TW93107607A patent/TWI254321B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2942406A1 (de) * | 1978-10-20 | 1980-05-08 | Hitachi Ltd | Vorrichtung zum schneiden einer rohrfoermigen huelse fuer ein brennelementbuendel |
US4747995A (en) * | 1985-06-10 | 1988-05-31 | Widder Corporation | Velocity limiter shear for BWR control rods |
US5055236A (en) * | 1985-09-16 | 1991-10-08 | Krieg Adrian H | Method and apparatus for underwater remote controlled radioactive waste reduction of boiling water nuclear reactor control rods |
DE4017987A1 (de) * | 1990-06-05 | 1991-12-12 | Battelle Institut E V | Verfahren zur konditionierung verbrauchter steuerelemente und brennelementkaesten aus siedewasserreaktoren |
EP0853320A2 (de) * | 1997-01-10 | 1998-07-15 | Siemens Aktiengesellschaft | Verdichtung zu entsorgender Steuer- und Absorberelemente aus Leichtwasser-Reaktoren |
Also Published As
Publication number | Publication date |
---|---|
TW200428410A (en) | 2004-12-16 |
DE502004010761D1 (de) | 2010-04-01 |
DE10316248A1 (de) | 2004-11-11 |
JP2006522922A (ja) | 2006-10-05 |
TWI254321B (en) | 2006-05-01 |
JP4455583B2 (ja) | 2010-04-21 |
EP1525589A2 (de) | 2005-04-27 |
ES2339247T3 (es) | 2010-05-18 |
WO2004090911A3 (de) | 2004-11-25 |
EP1525589B1 (de) | 2010-02-17 |
DE10316248B4 (de) | 2005-06-30 |
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