EP0044257A2 - Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit - Google Patents

Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit Download PDF

Info

Publication number
EP0044257A2
EP0044257A2 EP81401124A EP81401124A EP0044257A2 EP 0044257 A2 EP0044257 A2 EP 0044257A2 EP 81401124 A EP81401124 A EP 81401124A EP 81401124 A EP81401124 A EP 81401124A EP 0044257 A2 EP0044257 A2 EP 0044257A2
Authority
EP
European Patent Office
Prior art keywords
module
frame
modules
installation
casing
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
EP81401124A
Other languages
English (en)
French (fr)
Other versions
EP0044257B1 (de
EP0044257A3 (en
Inventor
Pierre Gourdon
René Goutard
Pierre Piry
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.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0044257A2 publication Critical patent/EP0044257A2/de
Publication of EP0044257A3 publication Critical patent/EP0044257A3/fr
Application granted granted Critical
Publication of EP0044257B1 publication Critical patent/EP0044257B1/de
Expired legal-status Critical Current

Links

Images

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
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/49723—Repairing with disassembling including reconditioning of part
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/4973—Replacing of defective part
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49819—Disassembling with conveying of work or disassembled work part
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/531—Nuclear device

Definitions

  • the present invention relates to an installation for replacing a member of a contaminated fluid circuit. It also relates to a method of replacing this organ.
  • Installations for treating contaminated fluids, in particular radioactive fluids include piping circuits through which the contaminated fluid circulates. On these circuits are arranged transfer, distribution, purification, etc. such as pumps, valves, filters, etc. These members are subject to wear, in particular when they include moving parts, and / or to fouling. It is therefore necessary to proceed, at more or less long time intervals depending on the case, with their replacement by new or reconditioned members. Apart from these replacements for wear or fouling, it may also be necessary to replace an organ with another organ of different nature or characteristics, for example of a pump with another pump, in principle and / or different speed.
  • the subject of the invention is an installation making it possible to carry out the replacement operations mentioned above without resorting to placing under castle from the start, this being carried out only after dismantling to ensure the transport of the organ disassembled to a repair or treatment workshop, and both the disassembly of the organ to be replaced and the assembly of the replacement organ are carried out, without any risk of spreading the contamination, in a very short time which does not significantly affect the production of the installation.
  • the invention applies more particularly to installations for processing radioactive fluids, but also applies, outside this particular field, to any installation treating fluids capable of spreading contamination of any kind.
  • the means for centering the module relative to the casing are constituted by vertical columns secured to the base of the casing, and by tubular spacers secured to the module, each column comprising a lower centering part, an intermediate part of smaller diameter, an upper centering part and a cylindrical-frustoconical head connected to the upper centering part by a collar of smaller diameter.
  • FIG. 1 shows a longitudinal section view of the installation for replacing a contaminated fluid circuit member produced in accordance with the invention.
  • Each member of this circuit such as a pump, a valve, a filter, etc.
  • the module belongs to a set, hereinafter called "the module".
  • these modules are designed so that a defective module can be removed quickly to be replaced by a module in good condition.
  • the connections to the contaminated fluid circuit of the modules, as well as the drives of the organs mounted on these modules are identical. It is therefore easy to replace a defective module with a module in good condition on which is mounted an analogous component or even a component of a different nature.
  • the structure of such modules will be explained in detail with reference to Figure 2.
  • zone A for introducing the modules inside the enclosure
  • zone active B successively comprising a zone B1 for the garage of the drip pan, a zone B2 for storing the modules in good condition, a zone B3 for modules in service, a zone B4 for rinsing the modules, a zone B5 for rinsing the drip pan, and finally a zone C for evacuating the modules outside the enclosure.
  • the sealed enclosure 1 includes means for introducing the modules in good condition, an overhead crane 2 capable of moving over the entire length of the enclosure and allowing vertical and horizontal manipulation of the module 4.
  • a rinsing station 6 for used modules is provided, as well as a rinsing station 8 for the drip pan 10 at the inside of which these modules are moved within the enclosure.
  • the enclosure 1 finally comprises means for evacuating the out-of-service modules from the enclosure.
  • the installation also includes, towards the downstream end, garages for the emergency carriages, namely the emergency carriage 12 of the drip pan carriage and the emergency carriage 14 of the traveling crane.
  • a service area 17 equipped with a winch from which it is possible, through openings provided with plugs 18, to carry out in the event of an accident on the devices placed below from the ceiling 16 for exceptional interventions.
  • Lateral to the assembly is a machine room where the pump drive means are grouped together as well as the control means for the various devices used according to the invention.
  • FIG. 2 shows a module produced in accordance with the invention.
  • This module designated by the general reference 18, consists of a horizontal base 20 on which is fixed the member 19 to be replaced.
  • the member 19 is a pump.
  • this organ could just as easily be another organ such as a valve, a filter, etc.
  • the pump 19 is connected to the contaminated fluid circuit by a suction pipe 22 and by a discharge pipe 24.
  • the suction 22 and discharge 24 pipes are connected to the pipes 32 of the fluid circuit.
  • the seal between the pipes 22 and 24 and the pipes 32 is ensured by seals 36.
  • the seals 36 are compressed by means of a clamping device. This clamping device will be described in more detail with reference to FIG. 3.
  • the pump shaft 38 arranged horizontally, can be driven by a motor-variator group, by means of a retractable coupling.
  • a gripping head 40 integral with the ceiling 42 makes it possible to handle the module 18 by means of an overhead crane. This gripping head has an inverted T-shaped opening.
  • Figure 3 shows the boquette_44 and the module 18 in a direction perpendicular to that of Figure 1.
  • the pump 19 is thus shown end.
  • the box 44 consists of a sealed tank 46 having an inclined bottom 48 and provided with an overflow 50 equipped with a leak detector.
  • the role of the box 44 is to collect all the accidental flows of contaminated liquid coming from the pump 19 and its connections.
  • the box has a fixed base 52 provided with supports 54 which pass through the bottom 48 of the tank 46 and transfer the weight of the module 18 onto a frame 56.
  • the ceiling 42 adapts in a sealed manner to the walls of the tank 44.
  • the seal between the ceiling 42 and the tank 44 is produced by means of a hydraulic seal 58.
  • the pump 19 can be replaced by any member such as a filter or a valve, provided however that this member is mounted identically inside the casing 44.
  • this member is mounted identically inside the casing 44.
  • the diameter and location of the pipes through which this member 19 is connected to the contaminated fluid circuit are identical from one organ to another. It is necessary that the coupling of this member is positioned identically.
  • means have been provided for centering the module 18 relative to the casing 44 when it is introduced inside the latter. These means consist, in the described embodiment, by four vertical columns 58, integral with the base 52 of the box.
  • the columns 58 have a lower centering part 60, an intermediate part 62 of smaller diameter, an upper centering part 64 of diameter identical to that of the lower part and finally a cylindrical-frustoconical head 66 connected to the upper centering part 64 by a collar 68 of smaller diameter.
  • the columns 58 cooperate with an equal number of tubular spacers 70 integral with the frame.
  • This figure also shows the clamping device on the base 52 of the box, as well as the tenon 72 in the form of an inverted T of the traveling crane.
  • This clamping device is constituted by a frame 74 on which are mounted lateral brackets 76 integral with vertical axes 78.
  • the stirrups 76 are equal in number to that of the columns 58, and their spacing is identical to that of the latter.
  • the axes 78 slide in the frame 74. They are returned upwards by means of a stack of elastic washers 80 of a stop ring 82 and immobilized on the axis 78.
  • the length of the axis 78 is such that, when the stirrup 76 is pressed against the frame 74, its end 78a protrudes above the frame.
  • the stirrups 76 have at their bottom an elongated opening.
  • This opening consists of a cylindrical part 84, the diameter of which is large enough so that the cylindrical-frustoconical head 66 of the column 58 can pass through the latter, and a second part 86, of smaller diameter. , so that only the collar 68 can pass through this opening 86.
  • the frame 76 also includes a gripping head 88 having an inverted T-shaped opening, identical to the gripping head 40 of the module, in order to allow their manipulation by means of a single stud 72.
  • a counter plate 90 secured to the traveling crane.
  • the counterplate 90 acts as a fixed stop against which the frame 74 can be pressed.
  • the frame 74 is shown, on the right-hand side of the figure, when it is not pressed against the counter plate 90. On the contrary, on the left-hand side of the figure, the frame 74 is pressed against the counter-plate 90.
  • the crane 2 is consists of a frame 92 movable horizontally on rails 94.
  • a frame 96 located under the frame 92, can move vertically in translation relative to the frame 92. It is moved by means of chains 94 driven by chain wheels.
  • the frame 96 carries, at the end of the columns 9B, a carrier plate 100 on which is fixed a hydraulic cylinder 102.
  • a gripping device comprising a tenon in the shape of an inverted T 72, capable of being housed in the corresponding openings of the gripping heads of the module 18 and of the frame 74.
  • the aforementioned counter-plate 90 is fixed parallel to the support plate 100. A circular orifice made in this plate allows the passage of the rod jack 102.
  • a carriage 104 movable horizontally on rails 108.
  • the carriage 104 carries a tray 106 called the drip pan.
  • the cover 114 of the container 112 has hooking means by which it can be suspended from the plug 118: Vertical rails which extend between the concrete floor of cell A "and its ceiling make it possible to guide the plug of the cell during its lifting.
  • Rails 108 disposed over the entire length of the installation allow the carriage 104 of the drip pan 106 to move.
  • Cylinders 121 allow the cover 112 to be hooked to the attachment device fixed in the plug 118 of the cell.
  • These attachment devices are of the conventional type and will not be described in more detail. The cover 112 being thus hooked to the plug 118 of the cell, the assembly constituted by this plug, the cover 112, the drip pan 106 and the module 18 can be lifted by the chains 122 to be brought into the cell A ", as is can see it on the right side of figure 5.
  • the drip pan 104 is then brought under this assembly. It can then be lowered until it rests on the carriage 104. It is then detached from the plug 118, the carriage 104 is moved away from the drip pan, so that the plug 118 can be replaced. We thus achieved the introduction of a module inside the enclosure.
  • the tenon 72 is introduced by horizontal translation of the traveling crane 2, inside the inverted T-shaped opening of the frame 74.
  • the jack 102 is pressurized.
  • the pressurization of the jack 102 has the effect of pressing the frame 74 against the counter plate 90, which lowers the rod 78 and the stirrup 76 relative to the frame, and therefore compresses the elastic washers 80.
  • the cylindrical-tapered heads 66 are brought opposite the openings of the stirrups 76.
  • a vertical movement of the crane 2 allows them to be released completely.
  • the frame 74 is then deposited by means of the traveling crane 2 at a garage location, not shown, after the pressure in the jack 102 has been released.
  • the defective module 18 can now be easily removed from the casing 44 inside which it is located.
  • the traveling crane 2 is brought once again directly above the defective module 18.
  • the lug 72 is inserted inside the inverted T-shaped opening which constitutes the gripping head of the module 18 by horizontal translation of the traveling crane 2.
  • This module is then lifted to the position shown on the left side of Figure 4.
  • the drip pan 106 and its carriage 104 are then brought under the module 18.
  • the module 18 is deposited by means of the traveling crane 2 in the drip pan 106.
  • This module is then transferred by means of the carriage 104 in the area B3 for rinsing faulty modules.
  • the crane 2 is transferred directly above a module in good condition. Indeed, a certain number of modules in good condition are permanently stored inside the enclosure 1, in the area B2 known as storage of modules in good condition.
  • This module 18 in good condition is transferred directly above the casing 44 from which the defective module has previously been extracted, then lowered into this casing by horizontal translation of the frame 96.
  • the spacers 70 of this module allow the module to be centered relative to to the box by means of the columns thereof.
  • the frame 74 is then taken up again at the place where it was previously deposited, by means of the traveling crane 2.
  • the jack 102 is first of all pressurized, which has for the purpose of pressing the frame 74 against the counter-plate 90 and compressing the elastic washers 80.
  • the pump of the module 18 in good condition which has just been put in place is coupled to its drive. The installation can be restarted immediately.
  • the defective module 18 which had been left placed on the drip pan 104 is introduced by means of the traveling crane 2 inside the rinsing station 10.
  • This rinsing station consists of a cover, the tank 46 having lateral dimensions more important than those of the boxes inside which the modules are in operation.
  • the rinsing station 10 is identical in all respects to the casing 44. In particular, it is provided with columns 62 which allow the centering of the defective module 18 relative to the latter.
  • a frame 74 'identical to the frame 74 makes it possible to clamp the defective module 18 on the base 52' of the rinsing station. This operation is carried out in an identical manner to that which has been described for the clamping of the module 18 in good condition.
  • the pipes of its pump 19 are connected with a rinsing circuit, so that its internal rinsing can be carried out at the same time as its external rinsing by means of nozzles .
  • the universal pan 106 must also be rinsed.
  • the rinsing station 8 of the drip pan 106 is of a conventional design in the field of decontamination installations. Its internal arrangement is of no particular interest for the present invention. This is why it has been represented schematically in FIG. 1.
  • the rinsed module is deposited using the traveling crane 2 in the drip pan 106 placed on its carriage 1 04.
  • the evacuation of the out-of-use module outside the enclosure is carried out in a manner identical to its introduction described above, but in a reverse manner.
  • the container of the extraction castle 122 is lifted, the castle cover 122 is hooked to the plug 124 and the cover is lifted by the traveling crane 2.
  • the broiler pan 104 carrying the defective rinsed module 18 is then brought under the plug.
  • the assembly constituted by the plug 124, the cover, the drip pan 106 and the module 18 is then slightly raised by means of the traveling crane 2, in order to release the carriage 104 from the drip pan which is then distant.
  • the drip pan 106 and module 18 assembly suspended from the cover of the container itself hooked to the stopper 124, is lowered into the container of the extraction castle 122. Then the cover is removed from the stopper 124, the container is lowered into the castle 122 and the cover put in place on the castle, while the stopper 124 is also replaced.
  • the castle is then evacuated to a module repair workshop, and a module in good condition is introduced upstream into the area B2 according to a process opposite to the process of evacuating defective modules.
  • the replaced organ is a pump which has been found to be defective and which is replaced by an identical pump in good working order.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP81401124A 1980-07-15 1981-07-10 Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit Expired EP0044257B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8015606A FR2487106A1 (fr) 1980-07-15 1980-07-15 Installation de remplacement d'un organe d'un circuit de fluide contamine et procede de remplacement de cet organe
FR8015606 1980-07-15

Publications (3)

Publication Number Publication Date
EP0044257A2 true EP0044257A2 (de) 1982-01-20
EP0044257A3 EP0044257A3 (en) 1982-01-27
EP0044257B1 EP0044257B1 (de) 1985-07-17

Family

ID=9244164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401124A Expired EP0044257B1 (de) 1980-07-15 1981-07-10 Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit

Country Status (5)

Country Link
US (1) US4439905A (de)
EP (1) EP0044257B1 (de)
JP (1) JPS5745492A (de)
DE (1) DE3171387D1 (de)
FR (1) FR2487106A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138484A1 (de) * 1981-09-28 1983-04-14 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover "verfahren zur instandhaltung von vorrichtungen und bauteilen in heissen zellen, insbesondere von wiederaufarbeitungsanlagen fuer abgebrannte kernbrennstoffe, und vorrichtung zur durchfuehrung des verfahrens
US4664873A (en) * 1982-05-03 1987-05-12 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh System for performing remotely-controlled manual-like operations in large-area cell of a nuclear facility
FR2531563A1 (fr) * 1982-08-06 1984-02-10 Framatome Sa Procede de remplacement des broches de guidage d'un tube-guide faisant partie des equipements internes superieurs d'un reacteur nucleaire a eau sous pression et dispositif correspondant
JPS62130995A (ja) * 1985-11-29 1987-06-13 株式会社日立製作所 タ−ビン建屋
GB8725032D0 (en) * 1987-10-26 1987-12-02 Atomic Energy Authority Uk Services connections
US4948981A (en) * 1989-03-20 1990-08-14 Westinghouse Electric Corp. Primary manway shielding and exhaust covers for a steam generator
FR2663777B1 (fr) * 1990-06-25 1994-06-17 Cogema Procede de demantelement d'une installation enterree hors abri, a risque de contamination et eventuellement irradiante, et caisson d'intervention pour mettre en óoeuvre ce procede.
DE69513880T2 (de) * 1994-05-18 2000-04-20 Cummins Engine Co., Inc. Kraftstoffdruckerzeugende Kolbenanordnung für eine druckgezündete Brennkraftmaschine
FR2808614B1 (fr) * 2000-05-04 2002-08-02 Framatome Sa Procede et dispositif de remplacement d'une partie d'un circuit d'un reacteur nucleaire

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564137A (de) * 1957-01-21
US3143971A (en) * 1957-12-23 1964-08-11 Borg Warner Plug-in type immersible pump
DE1139070B (de) * 1960-10-20 1962-10-31 Konstruktion Veb Vorrichtung zum Entleeren von radioaktive Praeparate enthaltenden Behaeltern in den Arbeitsraum mittels einer das Fahrgestell des Behaelters tragenden kippbaren Plattform
GB1070571A (en) * 1963-03-22 1967-06-01 Atomic Energy Authority Uk Nuclear reactor
US3558012A (en) * 1969-11-06 1971-01-26 Ecodyne Corp Pump station construction
US4158599A (en) * 1970-07-08 1979-06-19 Westinghouse Electric Corp. Method of refueling reactor
US4069923A (en) * 1974-12-16 1978-01-24 Ebasco Services Incorporated Buoyancy elevator for moving a load in an industrial facility such as a nuclear power plant

Also Published As

Publication number Publication date
FR2487106A1 (fr) 1982-01-22
JPS5745492A (en) 1982-03-15
EP0044257B1 (de) 1985-07-17
FR2487106B1 (de) 1982-09-24
EP0044257A3 (en) 1982-01-27
US4439905A (en) 1984-04-03
JPH0258600B2 (de) 1990-12-10
DE3171387D1 (en) 1985-08-22

Similar Documents

Publication Publication Date Title
EP0044257B1 (de) Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit
EP0004241B1 (de) Verbindungseinrichtung zwischen einem Behälter und einem zu entladenden Raum
BE897468A (fr) Procede de remplacement des broches de guidage d'un tube-guide et dispositif correspondant
EP0528727B1 (de) Anordnung für das temporäre, selektive Verbinden von mehreren Ein- und Ausgangsrohröffnungen
FR2808458A1 (fr) Dispositif de filtration rotatif en continu d'un liquide tel qu'une solution contenant un precipite
EP1954417B1 (de) Verfahren zur verwaltung der zylinder in einer walzvorrichtung und installation zu dessen anwendung
EP0063073B1 (de) Vorrichtung zum Positionieren eines Gerätes in den Öffnungen einer Rohrplatte
CA2115369A1 (fr) Dispositif de coupure d'une canalisation pour arreter la circulation d'un fluide
EP0312460B1 (de) Vorrichtung zur entkuppelbaren Verbindung zweier dichter Hohlräume
FR2703935A1 (fr) Dispositif de changement rapide et de maintien d'une paroi latérale d'une machine de coulée continue d'un produit métallique entre cylindres.
EP1554065A1 (de) Gekühlter haspeldorn zum aufwickeln von materialbändern
EP0428433B1 (de) Vorrichtung zum Fixieren der Steuerstabsführungsplatte im Kernreaktordruckgefäss
EP0742562B1 (de) Verfahren zum Einbauen einer abgedichteten Durchführung durch eine Zellenwand
EP0650794B1 (de) Räumanlage für durchgehende Löcher einer Platte und Räumverfahren
FR2837415A1 (fr) Dispositif et procede d'intervention dans une zone d'une installation delimitee par une paroi ayant au moins deux surfaces en vis-a-vis
EP0896124B1 (de) Mehrzweckwerkzeugsystem für die Verbindung von Rohren
FR2896549A3 (fr) Dispositif de maintenance d'air comprime
EP0218496A2 (de) Vorrichtung zur Herstellung von Giessereikernen
FR2742685A1 (fr) Installation et procede de coulee continue de l'acier
FR2846895A1 (fr) Installation autonome et amovible de raclage de canalisations en circuit ferme destinee notamment aux raclages des ugnes peinture effectues lors des changements de teinte dans l'industrie automobile
EP0805218A1 (de) Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung
FR2477278A1 (fr) Procede de nettoyage d'echangeurs a plaques et dispositif de mise en oeuvre du procede
FR2511904A1 (fr) Installation pour le nettoyage electro-hydraulique des pieces de fonderie
FR2759996A1 (fr) Disposition modulaire de manutention de batteries de tubes pour assurer leur transfert d'une raffinerie et installation similaire a un poste de nettoyage et vice-versa
FR2870038A1 (fr) Dispositif de devissage, de manutention et de vissage a distance d'un pion de centrage d'un assemblage de combustible et procedes mettant en oeuvre un tel dispositif

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE GB

AK Designated contracting states

Designated state(s): BE DE GB

17P Request for examination filed

Effective date: 19820629

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB

REF Corresponds to:

Ref document number: 3171387

Country of ref document: DE

Date of ref document: 19850822

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000629

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000705

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20000803

Year of fee payment: 20

BE20 Be: patent expired

Free format text: 20010710 *COMMISSARIAT A L'ENERGIE ATOMIQUE ETABLISSEMENT DE CARACTERE SCIENTIFIQUE TECHNIQUE ET INDUSTRIEL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20010709

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20010709