EP0504013A1 - Industriell anwendbarer Sauger insbesondere für Wiederaufbereitungsanlagen von bestrahlten Kernbrennstoffen - Google Patents

Industriell anwendbarer Sauger insbesondere für Wiederaufbereitungsanlagen von bestrahlten Kernbrennstoffen Download PDF

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Publication number
EP0504013A1
EP0504013A1 EP92400572A EP92400572A EP0504013A1 EP 0504013 A1 EP0504013 A1 EP 0504013A1 EP 92400572 A EP92400572 A EP 92400572A EP 92400572 A EP92400572 A EP 92400572A EP 0504013 A1 EP0504013 A1 EP 0504013A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
atmosphere
cleaner according
filter
main filter
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
EP92400572A
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English (en)
French (fr)
Other versions
EP0504013B1 (de
Inventor
Jean Claude Ciccariello
Philippe Bonny
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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.)
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Publication date
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Publication of EP0504013A1 publication Critical patent/EP0504013A1/de
Application granted granted Critical
Publication of EP0504013B1 publication Critical patent/EP0504013B1/de
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Classifications

    • 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
    • G21F7/00—Shielded cells or rooms
    • G21F7/06—Structural combination with remotely-controlled apparatus, e.g. with manipulators
    • G21F7/066—Remotely manipulated tools

Definitions

  • the invention relates to the cleaning of certain premises, especially in environments hostile to humans.
  • the main use of the invention is the regular cleaning of high activity cells in nuclear installations.
  • the cleaning of this type of cells is currently carried out by means of fixed-position telemanipulators.
  • the tools used are a shovel and a broom adapted to the grippers of the manipulator.
  • the object of the invention is to use a vacuum cleaner capable of carrying out this cleaning using the remote manipulator.
  • Industrial vacuum cleaners are of a design which does not take into account the criticality of the place, from the point of view of radioactivity, that is to say the state of the environment in which a nuclear chain reaction having a factor takes place effective multiplication equal to unity. Indeed, according to the different components of the materials and particles found in the aspirated atmosphere, certain dimensions and certain shapes must be avoided in order not to favor the development of a nuclear chain reaction.
  • the invention therefore aims therefore to produce a vacuum cleaner perfectly suited for remote handling.
  • the motor and the rotor with blades are placed in a first so-called upper part, which can be dismantled relative to the rest of the vacuum cleaner by means of first fixing means which can be unlocked by a remote manipulator, to make the vacuum cleaner modular and allow its maintenance and its maintenance by the remote manipulator. Indeed, it will be necessary to change the filter frequently or to repair the engine, following a breakdown.
  • the vacuum cleaner comprises a central part, into which the suction pipe opens, in which the filter is placed and on which the upper part is fixed.
  • a lower part is provided which is fixed below the central part by second fixing means which can be unlocked by the manipulator.
  • the vacuum cleaner is designed in three easily removable parts.
  • the central part has a venturi in the pipeline, downstream of the suction pipe and upstream of the filter.
  • the first filter is preferably a filter, manufactured by "PORAL", in stainless steel.
  • the vacuum cleaner advantageously complements a second filter of the very high efficiency type, placed at the outlet of the vacuum cleaner, to reject the relatively purified atmosphere.
  • the different sections of the pipeline have dimensions and diameters which comply with the accepted criticality standards for dust and waste containing a determined radioactive element.
  • the vacuum cleaner according to the invention is intended for the reprocessing of irradiated fuels containing plutonium; the criticality standards then correspond to those of plutonium.
  • FIG. 1 shows, in partial sections or in phantom views, the vacuum cleaner according to the invention. It generally defines a pipe, by a first end from which the air to be purified is collected and by the second end from which the air is discharged into the volume to be purified.
  • This pipe mainly consists of a suction pipe, the second end 1 of which is simply shown, fixed on a nozzle 21 of the body of the vacuum cleaner.
  • This pipe is extended by the inside of the cylinder constituting the overall shape of the vacuum cleaner.
  • the latter of course comprises a main filter 26 placed inside the vacuum cleaner, downstream of the suction pipe.
  • the circulation of the atmosphere to be purified inside the vacuum cleaner is ensured by a motor assembly 15 comprising a motor and a rotor with blades.
  • the configuration of the vacuum cleaner according to the invention is such that the motor assembly 15 is easily removable.
  • the motor assembly 15 consists of three main parts, an upper part 10 surmounting a central part 20, itself overcoming a lower part 30.
  • these elements are fixed to each other in a removable manner.
  • the motor unit 15 is placed above in the upper part 10.
  • connection of this upper part 10 to the rest of the vacuum cleaner, in this case the central part 20, is done by first fixing means which can be unlocked by a manipulator.
  • these fixing means must be easily accessible at the head of a screwdriver 3 from screwing or unscrewing screws or fixing nuts.
  • a fixing bolt 11 whose threaded rod is oriented in an inclined direction towards the outside.
  • the fixing means have an inclined bearing surface, which will be detailed later.
  • the main filter 26 is fixed to the upper part 10, but is housed inside the cylinder formed by the central part 20.
  • the central part 20 In the lower part of this central part 20 opens, through an orifice 23, the end piece 21 supporting the suction hose.
  • a venturi 25 At the same level, inside the central part, is placed a venturi 25 intended to accelerate the speed of the aspirated atmosphere and to direct it on and around the main filter 26.
  • the main filter 26 is preferably a filter of the type of those manufactured by the firm "PORAL", in stainless steel and impregnated with plutonium. In addition, it can be treated chemically. Stainless steel is advantageously used to constitute this main filter 26.
  • the lower part 30 mainly comprises a receptacle 31 which is located just below the hole 23 for the intake of the sucked air. Therefore, the large waste entrained by the suction fall by gravity into this receptacle 31. This fall is favored by the fact that the venturi 25 is placed slightly below the inlet hole 23. The large waste being separated from the dust, the latter can be stopped by the main filter 26 while they are driven in an upward movement by the engine assembly 15.
  • a second filter 16 of the very high efficiency type placed at the outlet of the pipe formed by the vacuum cleaner, downstream of the motor unit 15. This makes it possible to reject into the atmosphere of the cleaned room, purified air.
  • a main embodiment of the means for fixing the three parts may consist of fixing flanges.
  • the upper part 10 has for this purpose a fixing flange 19 which comes to bear on a fixing flange 28 of the central part 20.
  • These same elements are found at 29 and 38 for the fixing of the central part 20 on the lower part 30.
  • Positioning must be done using a manipulator, it is preferable to have positioning pins 14, for example fixed on the upper flange 28 of the central part 20 and which can penetrate the holes of the lower flange 19 of the upper part 10.
  • the unlockable fixing means must not only be easy to access to the manipulator when they are in the tight position, but also when they are not operational, that is to say when they are not fixed on the mounting flanges.
  • FIG. 3 An example of use of the vacuum cleaner according to the invention is shown in Figure 3. It is therefore installed in a cell 60 inside which is also installed a remote manipulator 50. This has the master part 51 placed outside the cell 60. The slave part 52 is placed inside the cell 60. A porthole 53 is placed at breast height in the wall of the cell 60, thus allowing an operator to control the remote manipulator 50 by means of the master part 51.
  • the clamp 54 of the manipulator can thus also have access to the fixing system between the different parts of the vacuum cleaner 40, since these are preferably provided slightly inclined.
  • an electrical connection 56 is provided inside the cell 60 and is connected to a source of electrical energy 57.
  • the cell to be cleaned 60 preferably comprises an airlock 58 to allow temporary storage of an element 55 of the vacuum cleaner 40 to be replaced, for example the main filter 26 or the motor unit 15.
  • the cell 60 has been shown on stilts, which attempts to suggest that it does not have a very large dimension taking into account the height of the porthole 53 relative to the ground 59. It is nevertheless planned to use a such a vacuum cleaner for very large cells.
  • the vacuum cleaner can therefore, thanks to its "non-critical" shapes, suck in fissile materials.
  • the main filter 26 is made of stainless steel, its content can be recovered by dissolution in nitric acid.
  • the vacuum cleaner can also withstand the high rate of radiation doses.
  • the remotely removable nature of the vacuum cleaner according to the invention often allows to change the receptacle 31 in which are collected this big waste.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Cleaning In General (AREA)
EP19920400572 1991-03-08 1992-03-05 Industriell anwendbarer Sauger insbesondere für Wiederaufbereitungsanlagen von bestrahlten Kernbrennstoffen Expired - Lifetime EP0504013B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102832 1991-03-08
FR9102832A FR2673523B1 (fr) 1991-03-08 1991-03-08 Aspirateur industriel modulable, notamment pour les installations de retraitement de combustibles irradies.

Publications (2)

Publication Number Publication Date
EP0504013A1 true EP0504013A1 (de) 1992-09-16
EP0504013B1 EP0504013B1 (de) 1995-06-28

Family

ID=9410531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920400572 Expired - Lifetime EP0504013B1 (de) 1991-03-08 1992-03-05 Industriell anwendbarer Sauger insbesondere für Wiederaufbereitungsanlagen von bestrahlten Kernbrennstoffen

Country Status (3)

Country Link
EP (1) EP0504013B1 (de)
DE (1) DE69203118T2 (de)
FR (1) FR2673523B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731635A1 (fr) * 1995-03-17 1996-09-20 Stmi Soc Tech Milieu Ionisant Aspirateur de particules dangereuses
FR2879490A1 (fr) * 2004-12-21 2006-06-23 Tech En Milieu Ionisant Stmi S Dispositif d'intervention motorise pour boite a gant et boite a gant equipee d'un tel dispositif
FR2993195A1 (fr) * 2012-07-13 2014-01-17 Areva Nc Dispositif et procede de transfert pneumatique de poudre
FR3107464A1 (fr) * 2020-02-25 2021-08-27 Commissariat A L'energie Atomique Et Aux Energies Alternatives Aspirateur utilisable notamment dans des boîtes à gants

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684125A (en) * 1952-05-31 1954-07-20 Hoover Co Suction cleaner having multiple concentric filters
FR1094603A (de) * 1955-05-23
EP0050561A1 (de) * 1980-10-17 1982-04-28 Commissariat à l'Energie Atomique Verfahrbarer, fernbedienter Manipulator, welcher aus einer luftdichten Zelle zurückziehbar ist
DE8907083U1 (de) * 1989-06-09 1989-08-10 Ringler, Bernhard, 7076 Waldstetten Sammelbehälter für industriell einsetzbare Sauggeräte
US4944780A (en) * 1989-01-12 1990-07-31 Kal Usmani Central vacuum cleaner with detachable filter assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1094603A (de) * 1955-05-23
US2684125A (en) * 1952-05-31 1954-07-20 Hoover Co Suction cleaner having multiple concentric filters
EP0050561A1 (de) * 1980-10-17 1982-04-28 Commissariat à l'Energie Atomique Verfahrbarer, fernbedienter Manipulator, welcher aus einer luftdichten Zelle zurückziehbar ist
US4944780A (en) * 1989-01-12 1990-07-31 Kal Usmani Central vacuum cleaner with detachable filter assembly
DE8907083U1 (de) * 1989-06-09 1989-08-10 Ringler, Bernhard, 7076 Waldstetten Sammelbehälter für industriell einsetzbare Sauggeräte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THE TIMES REVIEW OF INDUSTRY 30 Juin 1955, page 37; 'vacuum cleaner for radio-active dust' *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731635A1 (fr) * 1995-03-17 1996-09-20 Stmi Soc Tech Milieu Ionisant Aspirateur de particules dangereuses
FR2879490A1 (fr) * 2004-12-21 2006-06-23 Tech En Milieu Ionisant Stmi S Dispositif d'intervention motorise pour boite a gant et boite a gant equipee d'un tel dispositif
WO2006090036A1 (fr) * 2004-12-21 2006-08-31 Stmi Societe Des Techniques En Milieu Ionisant Dispositif d'intervention motorise pour boite a gant et boite a gant equipee d'un tel dispositif
US8615843B2 (en) 2004-12-21 2013-12-31 S.T.M.I. Societe Des Techniques En Milieu Ionisant Powered operation device for a glove box and glove box equipped with such a device
FR2993195A1 (fr) * 2012-07-13 2014-01-17 Areva Nc Dispositif et procede de transfert pneumatique de poudre
FR3107464A1 (fr) * 2020-02-25 2021-08-27 Commissariat A L'energie Atomique Et Aux Energies Alternatives Aspirateur utilisable notamment dans des boîtes à gants

Also Published As

Publication number Publication date
EP0504013B1 (de) 1995-06-28
DE69203118D1 (de) 1995-08-03
DE69203118T2 (de) 1996-02-01
FR2673523A1 (fr) 1992-09-11
FR2673523B1 (fr) 1994-10-28

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