DE3404575C2 - Cleaning device for the mechanical removal of deposits on the surfaces of fuel rod cladding tubes - Google Patents
Cleaning device for the mechanical removal of deposits on the surfaces of fuel rod cladding tubesInfo
- Publication number
- DE3404575C2 DE3404575C2 DE3404575A DE3404575A DE3404575C2 DE 3404575 C2 DE3404575 C2 DE 3404575C2 DE 3404575 A DE3404575 A DE 3404575A DE 3404575 A DE3404575 A DE 3404575A DE 3404575 C2 DE3404575 C2 DE 3404575C2
- Authority
- DE
- Germany
- Prior art keywords
- brush body
- fuel rod
- cleaning device
- fuel
- deposits
- 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
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
-
- 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
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
-
- 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)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Cleaning In General (AREA)
Abstract
Bei einer derartigen Einrichtung sollen die Ablagerungen durch mechanische Einwirkungen entfernt werden. Dazu ist vorgesehen, daß in die Räume zwischen den Brennstäben ein Bürstenkörper einfährt. Dabei kragen die Borsten auf zwei gegenüberliegenden Seiten vom Umfang des Bürstenkörpers aus. Der Bürstenkörper ist mit einem Antriebselement zur wechselweisen Erzeugung einer Rotations- oder einer Einfahrbewegung verbunden. An borstenfreien Bereichen ist der Bürstenkörper mit Muffen aus gleitfähigem Material verbunden.With such a device, the deposits should be removed by mechanical action. For this purpose it is provided that a brush body moves into the spaces between the fuel rods. The bristles protrude from the circumference of the brush body on two opposite sides. The brush body is connected to a drive element for alternately generating a rotational movement or a retraction movement. In the bristle-free areas, the brush body is connected with sleeves made of slippery material.
Description
Antriebselemeiit 19 bildet Mit dem Flansch 7 seiner Motorwelle 8 ist ein Flansch 9 eines Bürstenkörpers 10 verbunden, so daß er sowohl die Drehbewgung der Motorwelle als auch die linearen Bewegungen des Trägers 5 in Pfeilrichtung 3, 4 mit ausführt Auf einem Teilbereich ist der Bürstenkörper 10 mit Borsten 13 bestückt, die nur von zwei gegenüberliegenden Seiten etwa senkrecht zur Achse des Bürstenkörpers 10 auskragen. In •'v: Achsrichtung des Bürstenkörpers betrachtet sind vorDrive element 19 forms with the flange 7 of its Motor shaft 8 is connected to a flange 9 of a brush body 10 so that it can both rotate the motor shaft as well as the linear movements of the carrier 5 in the direction of the arrows 3, 4 are carried out on a partial area the brush body 10 is equipped with bristles 13 that are approximately perpendicular only from two opposite sides to the axis of the brush body 10 protrude. In • 'v: axial direction of the brush body are viewed in front
und hinter der Borstenbestückung Muffen 14 aus gleit-, fähigem Material angebracht Sie kommen an jeweilsand behind the bristle assembly sleeves 14 made of sliding, capable material attached you come to each
-:".-■■ gegenüberliegenden Hüllrohren 2 zur Anlage und die-.;"■. nen zur Führung und Abstützung des Bürstenkörpers während seiner Rotation. Die Reinigung läuft wie folgt .: ab. Während der Bürstenkörper sich noch außerhalb der i Zwischenräume 15 des Brennelements 1 befindet wird-: ".- ■■ opposite ducts 2 to the system and the - .;" ■. nen to guide and support the brush body during its rotation. The cleaning works as follows .: away. While the brush body is still outside the i intermediate spaces 15 of the fuel assembly 1 is located
;i er in eine Stellung gebracht, bei der sich die Borsten in ]■'■ etwa parallel zur Achse der Hüllrohre erstrecken. Erst |f dann ist ein behinderungsfreies Einfahren in einen Zwi- *ä schenraum 15 durch positionsgenaues Verfahren des U Trägers 5 in Pfeilrichtung 3,4 möglich. Sobald die Borjf sten 13 in einer Reinigungsposition zwischen zwei Hüll-Jt rchren 2 angelangt ist, läuft die Motorwelle 8 an, so daß r:i auch der Bürstenkörper 10 mit den Borsten 13 in Rota-I tion versetzt wird. Eine Erhöhung des Reinigungseffek-; i he brought into a position in which the bristles in ] ■ '■ extend approximately parallel to the axis of the cladding tubes. Only then is an unimpeded entry into an intermediate space 15 possible by moving the U- beam 5 in the direction of arrow 3, 4 in a precise position. Once the Borjf most 13 in a cleaning position between two envelope Jt rchren has reached 2, the motor shaft 8 is running, so that r: i is also added to the brush body 10 with the bristles 13 in Rota-I tion. An increase in the cleaning effect
tes kann noch dadurch erzielt werden, in dem der Trä- f: ger 5 während der Rotationsbewegung der Bürste eine ;.i Pendelbewegung parallel zur Längserstreckung der j Hüllrohre ausführt 1st der Reinigungsvorgang einestes can still be achieved, in which the Trä- f: ger 5 during the rotation of the brush a; .i pendulum movement executes parallel to the longitudinal extension of the 1st j cladding tubes, the cleaning operation of a
Hüllrohrpaares in dem gewünschten Längenabschnitt L ι abgeschlossen, wird die Motorwelle 8 mittels nicht dar- |i gestellter Stellungsanzeiger in eine Position gebracht, in ja der die Borsten in Längserstreckung der Hüllrohre rail gen. Durch Verfahren des Trägers in Pfeilrichtung 3 W gelangt die Bürste in die nächste Reinigungsposition. H Nachdem die einem Zwischenraum 15 zugeordneten k. Hüllrohre gereinigt sind, wird durch Verfahren des posi- iJ, tionsgenau einstellbaren Trägers der nächste Zwischen-■ raum 15a angefahren.Cladding tube pair completed in the desired length section L ι, the motor shaft 8 is brought by means of position indicators (not shown) in a position in which the bristles in the longitudinal extension of the cladding tubes gene. By moving the carrier in the direction of arrow 3 W, the brush reaches the next cleaning position. H After the k. Cladding tubes have been cleaned, the next intermediate space 15a is approached by moving the carrier, which can be precisely adjusted in position.
Die Fig.2 zeigt in einer Teilschnittdarstellung aus j der Fig. 1 die nach zwei gegenüberliegenden Seiten2 shows in a partial sectional view j of Fig. 1 after two opposite sides
von dem Bürstenkörper auskragenden Borsten 13.
i Sollen mehr als zwei bzw. alle Hüllrohre 2 eines Zwischenraumes
gleichzeitig gereinigt werden, so ist der Bürstenkörper gem. F i g. 3 über eine L änge mit Borsten
13 bestückt, die mindesens so groß ist wie die Breite ' eines Brennelementquerschnittes. Ebenso wie bei dembristles 13 protruding from the brush body.
If more than two or all of the cladding tubes 2 of an intermediate space are to be cleaned at the same time, the brush body according to FIG. 3 equipped with bristles 13 over a length which is at least as large as the width of a fuel element cross-section. As with that
' in der Fig. 1 beschriebenen Bürstenkörper kragen die'The brush body described in Fig. 1 collar the
J Borsten nur von zwei gegenüberliegenden Seiten des-■^ selben aus. Der Bürstenkörper wird in seiner Ruhestel- :-■ lung soweit Jn einen Zwischenraum 15 eingefahren, bis |y das freie Ende des Bürstenkörpers in eine Lagerboh- ψ rung 16 eines Lagerbockes 17 eingreift. Der Lagerbock Pi ist an der dem Motor abgewandten Seite des Brennele- l'' ments angeordnet Für jeden Zwischenraum 15, 15a ;.%i weist der Lagerbock eine Lagerbohrung auf, in welcher ?;| der Bürstenkörper bei der Rotationsbewegung seine !;! Abstützung erfährt Befestigt ist der Lagerbock auf eirjr ner gemeinsamen Grundplatte 18 auf der sowohl das '·"'' Brennelement 1 zentriert ist als auch die nicht dargestellten Führungen für den Träger 5 angeordnet sind.J bristles only from two opposite sides of the same. The brush body is in its Ruhestel-: - ■ lung extent Jn a gap 15 is retracted until | y, the free end of the brush body in a Lagerboh- ψ tion 16 of a bearing block 17 engages. The bearing block Pi is on the opposite side of the engine Brennele- ments disposed l '' for each gap 15, 15a;. % i does the bearing block have a bearing bore in which?; | the brush body during the rotational movement its!;! Support undergoes Attached is the bearing block on eirjr ner common base plate 18 on both the '·''' fuel element is centered 1 and the guides are not shown for the carrier 5 are arranged.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3404575A DE3404575C2 (en) | 1984-02-09 | 1984-02-09 | Cleaning device for the mechanical removal of deposits on the surfaces of fuel rod cladding tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3404575A DE3404575C2 (en) | 1984-02-09 | 1984-02-09 | Cleaning device for the mechanical removal of deposits on the surfaces of fuel rod cladding tubes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3404575A1 DE3404575A1 (en) | 1985-08-14 |
DE3404575C2 true DE3404575C2 (en) | 1986-09-11 |
Family
ID=6227226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3404575A Expired DE3404575C2 (en) | 1984-02-09 | 1984-02-09 | Cleaning device for the mechanical removal of deposits on the surfaces of fuel rod cladding tubes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3404575C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735840A1 (en) * | 1987-10-23 | 1989-05-03 | Hoefer & Bechtel Gmbh | Device for cleaning sealing surfaces of a reactor pressure container lid |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1764722B2 (en) * | 1967-07-31 | 1976-12-23 | Belgonucleaire S.A., Brüssel | METHOD OF DECONTAMINATION OF THE SURFACE OF A NUCLEAR FUEL ELEMENT |
BE759411A (en) * | 1969-11-26 | 1971-04-30 | Siemens Ag | DEVICE FOR CLEANING THE ENDS OF TUBES, ESPECIALLY OF ENDS OF FUEL BAR ENCLOSURE TUBES FOR NUCLEAR REACTORS |
US4219976A (en) * | 1978-08-01 | 1980-09-02 | Westinghouse Electric Corp. | Machine and method for decontaminating nuclear steam generator channel head |
US4343059A (en) * | 1981-04-06 | 1982-08-10 | The United States Of America As Represented By The United States Department Of Energy | Radioactive hot cell access hole decontamination machine |
DE3332881A1 (en) * | 1983-09-13 | 1985-03-28 | Nico Industriereinigung AG, Luzern | METHOD AND DEVICE FOR DECONTAMINATING RADIOACTIVELY DIRTED METAL PROFILES |
-
1984
- 1984-02-09 DE DE3404575A patent/DE3404575C2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735840A1 (en) * | 1987-10-23 | 1989-05-03 | Hoefer & Bechtel Gmbh | Device for cleaning sealing surfaces of a reactor pressure container lid |
Also Published As
Publication number | Publication date |
---|---|
DE3404575A1 (en) | 1985-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ABB REAKTOR GMBH, 6800 MANNHEIM, DE |
|
8339 | Ceased/non-payment of the annual fee |