EP0044257B1 - Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit - Google Patents
Anlage zum Auswechseln einer Einrichtung eines Kreislaufs mit kontaminierter Flüssigkeit Download PDFInfo
- Publication number
- EP0044257B1 EP0044257B1 EP81401124A EP81401124A EP0044257B1 EP 0044257 B1 EP0044257 B1 EP 0044257B1 EP 81401124 A EP81401124 A EP 81401124A EP 81401124 A EP81401124 A EP 81401124A EP 0044257 B1 EP0044257 B1 EP 0044257B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- frame
- bell
- modules
- fluid
- 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
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.
- Installations for treating contaminated fluids, in particular radioactive fluids include piping circuits in which the contaminated fluid circulates. On these circuits are arranged transfer, distribution and purification organs, such as pumps, valves, filters. 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 flow.
- organs such as pumps, valves, filters.
- 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 treating radioactive fluids, but also applies, outside this particular field, to any installation treating fluids capable of spreading contamination of any kind.
- the installation for replacing a member of a contaminated fluid circuit according to the invention includes the features of claim 1.
- 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, belongs to an assembly, 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.
- all of the modules which constitute the contaminated fluid circuit is located inside a sealed enclosure 1.
- 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 has been provided. 6 of the used modules, as well as a rinsing station 8 of a drip pan 106 inside which these modules are moved in 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 15, to carry out in the event of an accident on the devices placed below from the ceiling 16 for exceptional interventions.
- 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 pipes 22 and discharge 24 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 shaft 38 of the pump arranged horizontally, can be driven by a motor-variator group, by means of a retractable coupling.
- a gripping head 40 secured to the ceiling 42 of the module 18 makes it possible to handle this module by means of an overhead crane. This gripping head has an inverted T-shaped opening.
- FIG. 3 represents the package 44 and the module 18 in a direction perpendicular to that of FIG. 1.
- the pump 19 is thus shown at the 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 59.
- 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 member 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 inserted inside the latter. These means consist, in the embodiment described, 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 stirrups 76 secured to vertical axes 78.
- the stirrups 76 are in number equal 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 74 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 traveling crane 2 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 95 driven by chain wheels.
- the frame 96 carries, at the end of the columns 98, a support plate 100 on which is fixed a hydraulic cylinder 102.
- a gripping device comprising a tenon in the shape of an inverted T 72, likely to be housed in the corresponding openings of the gripping heads 40, 88 of the module 18 and of the frame 74.
- the counter-plate 90 mentioned previously is fixed parallel to the carrier plate 100. A circular orifice made in this plate allows the passage of the rod of the jack 102.
- a carriage 104 movable horizontally on rails 108.
- the carriage 104 carries the drip pan 106.
- the cover 115 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 arranged over the entire length of the installation allows the carriage 104 of the drip pan 106 to move.
- Cylinders 121 allow the cover 115 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 115 being thus hooked to the plug 118 of the cell, the assembly constituted by this plug, the cover 115, 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 carriage 104 of the drip pan 106 is then brought under this assembly.
- the assembly 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.
- 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, consequently, compresses the elastic washers 80. It is then possible, by lowering the frame 74, to release the stirrups 76 from the cylindrical-frustoconical heads 66.
- the cylindrical-frustoconical heads 66 are brought opposite the openings of the stirrups 76.
- a vertical movement of the traveling crane 2 makes it possible to release them 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 the effect of pressing the frame 74 against the counter plate 90 and compress 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 carriage 104 is introduced by means of the traveling crane 2 inside the rinsing station 6.
- This rinsing station consists of a cap, the tank 46 of which has lateral dimensions larger than those of the casings inside which the modules are in operation.
- the rinsing station 6 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 104.
- 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 placed on the castle, while the stopper 124 is also replaced.
- the chateau is then evacuated to a module repair workshop, and a module in good condition is introduced upstream in zone B2 according to a process opposite to the evacuation process for 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.
- this example of application of the invention is not limiting and all of the devices described, as well as the succession of operations described, can also be applied to the replacement other organs, such as valves, filters, either by an identical organ, or by a different organ. It suffices that all these members are mounted in identical casings, in particular with regard to the diameter and location of the connection pipes and of the drive or control shaft, and are equipped with identical gripping devices. placed in a similar way, so that their “standard interchangeability is ensured in the context of the present invention.
- the present invention achieves the goals assigned to it.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Air Transport Of Granular Materials (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Load-Engaging Elements For Cranes (AREA)
Claims (8)
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 EP0044257A2 (de) | 1982-01-20 |
EP0044257A3 EP0044257A3 (en) | 1982-01-27 |
EP0044257B1 true 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)
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. |
EP0683314B1 (de) * | 1994-05-18 | 1999-12-15 | Cummins Engine Company, 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)
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 |
-
1980
- 1980-07-15 FR FR8015606A patent/FR2487106A1/fr active Granted
-
1981
- 1981-07-10 DE DE8181401124T patent/DE3171387D1/de not_active Expired
- 1981-07-10 EP EP81401124A patent/EP0044257B1/de not_active Expired
- 1981-07-13 US US06/282,602 patent/US4439905A/en not_active Expired - Fee Related
- 1981-07-15 JP JP56111513A patent/JPS5745492A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2487106A1 (fr) | 1982-01-22 |
JPS5745492A (en) | 1982-03-15 |
EP0044257A3 (en) | 1982-01-27 |
DE3171387D1 (en) | 1985-08-22 |
JPH0258600B2 (de) | 1990-12-10 |
EP0044257A2 (de) | 1982-01-20 |
US4439905A (en) | 1984-04-03 |
FR2487106B1 (de) | 1982-09-24 |
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