EP3469169A1 - Tool for cleaning a pool, particularly in a radioactive environment, comprising a tank - Google Patents
Tool for cleaning a pool, particularly in a radioactive environment, comprising a tankInfo
- Publication number
- EP3469169A1 EP3469169A1 EP17745413.9A EP17745413A EP3469169A1 EP 3469169 A1 EP3469169 A1 EP 3469169A1 EP 17745413 A EP17745413 A EP 17745413A EP 3469169 A1 EP3469169 A1 EP 3469169A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- pool
- opening
- pump
- cleaning tool
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
-
- 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
-
- 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
- G21F9/04—Treating liquids
- G21F9/06—Processing
-
- 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
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
- G21F9/22—Disposal of liquid waste by storage in a tank or other container
Definitions
- the invention relates to a cleaning tool for a pool in a radioactive environment.
- the cleaning tool is adapted to be immersed at least partially in the pool.
- Cleaning tools of known structure for storage pools of radioactive materials, in particular nuclear fuel assemblies comprise a frame, a suction device and a filtration device located downstream of the suction device.
- the suction device and the filtration device are mounted on the frame. They are used to clean the water of the pool and / or to recover bodies that lie at the bottom of the pool.
- Such cleaning tools are quite difficult to move and install in the pool.
- the maintenance operations of these cleaning tools are often difficult.
- they are likely to be contaminated by the radioactivity of elements, parts or bodies, especially from handling or maintenance operations that may have dropped or deposited in the pool bottom.
- the invention aims to at least partially solve the problems encountered in the solutions of the prior art.
- the invention relates to a cleaning tool of a pool in a radioactive environment.
- the cleaning tool includes a liquid filtration device and at least one pump.
- the tool comprises a vessel that has a first opening, a second opening, a liquid inlet of the pool and a liquid outlet.
- the first opening is intended to at least partially introduce the pump, and to at least partially house the pump in the tank.
- the second opening distinct from the first opening, is intended to introduce at least partially the filter device, and to accommodate at least partially the filter device in the tank.
- the liquid inlet opens into the second opening, the filtration device being located between the inlet and the pump to fluidically connect the liquid inlet to the pump.
- the tool further includes a lid configured to close the first opening, and a discharge conduit that is fluidly connected to the pump outlet and the liquid outlet.
- the discharge duct passes through the lid.
- the pump and the discharge pipe are rigidly secured to the lid.
- the cleaning tool is configured to draw liquid from the pool from the inlet, then through the filter device, before passing it through the at least one pump.
- the risks of contaminating the pump with radioactive elements, particles, parts or bodies, are reduced, since the filtration device is intended to retain these elements before they reach the at least one pump .
- the filtration device is located immediately downstream of the liquid inlet, which limits the contamination of the tank and the pump.
- the filtration device and the at least one pump are accessible independently of one another, which facilitates maintenance operations.
- the pumping unit which includes the pump, the cover of the first opening and the discharge pipe, can be moved / removed in one piece of the tank, which facilitates including maintenance operations.
- the invention may optionally include one or more of the following features combined with one another or not.
- the pump is attached to the tank, and the filtration device is attached to the tank.
- the tank comprises at least one cover for closing the second opening and a closing system of the cover.
- the closing system of the lid comprises a lever and two rods of cylinders each connected on the one hand to the tank and on the other hand to the lever, to tilt the lid relative to the tank.
- the lid of the second opening may be devoid of screws or rivets to close it, which facilitates its opening when the tool is at the bottom of the pool.
- the cleaning tool comprises a valve configured to close the discharge pipe.
- the valve is located opposite the pump relative to the lid of the first opening.
- the cleaning tool comprises a second pump housed in the tank being introduced into a third opening distinct from the first opening, the first opening and the third opening being located on either side of the second opening opening. of the filtration device, the filtration device being housed in the tank between the pumps in a longitudinal direction of the tank.
- the cleaning tool comprises a drain valve located outside the tank and configured to drain the tank.
- the drain valve is then easily accessible.
- the invention also relates to a swimming pool cleaning device, in a radioactive medium.
- the apparatus includes a cleaning tool as defined above, and a control and / or power unit configured to control the at least one pump and / or electrically power the pump from outside the pool when the cleaning tool is at the bottom of the pool.
- the cleaning apparatus comprises an inlet pipe fluidly connected to the inlet of the cleaning tool, the inlet pipe being configured to suck the liquid on the surface of the pool or bottom of the pool.
- the cleaning tool then makes it possible both to clean the liquid from the pool, to suck the radioactive elements resting at the bottom of the pool, and to suck up those that float on the surface of the pool, for example particles or mosses.
- the inlet comprises at least one inlet tube
- the apparatus comprising an adapter tip which fluidly connects the inlet pipe to the inlet pipe, the adapter end comprising a gripping lug and a frustoconical surface configured to insert the tip into the inlet tube.
- the invention also relates to a method of cleaning a pool using a cleaning tool as defined above, and / or a cleaning device as defined above.
- the cleaning method comprises a step of immersing the cleaning tool in the pool, the tank being previously filled with a first liquid having less or being free of contaminants for the pump.
- the liquid initially present in the tank is then discharged from the tank, which causes a suction of water from the inlet pipe and the cleaning of this water.
- the invention relates to a method of remote connection of an inlet pipe to an inlet tube of a cleaning apparatus as defined above.
- the method comprises a step of gripping the adapter tip by its ear from outside the pool, and a step of inserting the adapter tip into the inlet tube from outside the pool.
- Figure 1 is a schematic elevational representation of a pool cleaning tool, according to a first embodiment
- Figure 2 is an exploded schematic representation of the cleaning tool according to the first embodiment
- Figure 3 is a schematic elevation illustrating the mounting of an adapter tip to the inlet of the cleaning tool
- FIG. 4 illustrates the cleaning of the middle of a swimming pool using the cleaning tool according to the first embodiment
- Figure 5 illustrates the cleaning of the pool surface using the cleaning tool according to the first embodiment
- Figure 6 illustrates the cleaning of the bottom of the pool using the cleaning tool according to the first embodiment.
- Figures 1 and 2 show a cleaning tool 2 of a pool 10 for storing radioactive materials.
- the pool 10 comprises two opposite lateral edges 11, 13 and a bottom 12 between the lateral edges 11, 13.
- the pool 10 contains liquid, typically water. Radioactive elements such as suspended radioactive particles, floating elements, or bodies resting on the bottom 12 of the pool are likely to pollute the pool 10.
- the cleaning tool 2 comprises a tank 5, a support 20 of the tank 5, a filtration device 3, a first pumping unit 40, and a second pumping unit 42.
- the tank 5 at least partially houses the pumping 40, 42 and the filtration device 3.
- the cleaning tool 2 comprises an inlet 6 of liquid coming from the pool 10 and which opens into the tank 5, an outlet 7 of liquid located downstream of each pumping unit 40, 42, as well as a drain valve 21 to empty the tank 5.
- upstream and downstream are used with reference to the flow of liquid in the cleaning tool 2, during normal operation of the tool 2.
- the filtration device 3 is located between the first pumping unit 40 and the second pumping unit 42, along the longitudinal direction X-X of the tank 5.
- the vessel 5 comprises a cylindrical body 51 which is defined by an outer wall 50 and which extends in the longitudinal direction X-X.
- the tank 5 comprises a central opening 54 for introducing the filtration device 3, a first opening 52 for the first pumping unit 40, and a third opening 56 for the second pumping group 42. These openings
- the cylindrical body 51 has a cistern shape. It rests on two wall elements 22 in the general shape of "I" which form the support 20 and which bear on the bottom 12 of the pool 10.
- the tank 5 comprises a lifting loop 23, said first loop, which is pivotally connected to its two opposite lateral ends to the cylindrical body 51.
- the lifting handle 23 allows the cleaning tool 2 to be moved and put down at the bottom 12 of the pool 10.
- the openings 52, 53, 54 are situated in the upper part of the cylindrical body 51, opposite to the support 20.
- the central opening 54 is located between the first opening 52 and the third opening 56, along the longitudinal direction XX of the vessel 5.
- the central opening 54 is delimited by an annular rim 55 which projects from the cylindrical body 51.
- the first opening 52 is delimited by an annular rim 53 which projects from the cylindrical body 51.
- the third opening 56 is delimited by another annular flange 53 which protrudes from the cylindrical body 51.
- the third opening 56 is substantially identical to the first opening 52.
- the central opening 54 has a larger diameter than that of the first opening 52.
- the central opening 54 is intended to be closed by a cover 61 covering the filtration device 3.
- the first opening 52 and the third opening 56 are each intended to be closed by a cover 43 to protect the pumps 41 of the pumping units 40 , 42.
- the filtration device 3 and the pumping groups 40, 42 serve to clean the pool water 10, by removing the elements, parts or bodies, radioactive.
- the filtration device 3 comprises a plurality of filters 31 of which five are visible in Figure 2. These filters 31 are housed within cells in the central opening 54, being downstream of the inlet 6 of liquid. The filters 31 are intended to be completely housed in the tank 5.
- Each of the filters 31 is a cartridge filter which has a handle
- Some filters 31 may be replaced by plugs (not shown) if the flow of liquid in the cleaning tool 2 is sufficiently low.
- the first pumping unit 40 comprises a first pump 41, a cover 43, a discharge pipe 44 which is fluidly connected to the outlet of the pump 41, and a discharge valve 45.
- the first pumping unit 40 also has an ear lifting device 46 which is fixed to the cover 43, projecting from the cover 43.
- the pump 41 is intended to be fully housed in the tank 5 which protects the elements, parts or bodies, radioactive present in the pool.
- the lid 43 is configured to be screwed to the flange 53 of the first opening 52, to close the first opening 52.
- the discharge duct 44 has a bent shape and it passes through the cover 43. It is connected to a discharge duct 71.
- the discharge valve 45 is located between the discharge duct 44 and the exhaust duct 71. It is configured to open / close the discharge duct 44.
- a portion of the discharge pipe 44, the discharge valve 45 are located outside the tank 5, which facilitates remote handling when the cleaning member 2 is immersed.
- the lifting lug 46 serves to grip the pumping unit 40.
- the first pumping unit 40 is movable more easily as it is movable in one piece. The maintenance operations of the first pumping unit 40 are then facilitated.
- the second pumping unit 42 is identical to the first pumping unit 40.
- the discharge duct 44 of the second pumping unit 42 is also connected to a discharge duct (not shown) via a discharge valve 45.
- the central opening 54 is closed by a cover 61 which comprises a plate 69, two inlet tubes 60, an opening lever 91, and a lifting loop 63.
- the plate 69 bears on the central opening 54 which it closes, being pressed against the annular flange 55 of the opening 54.
- Each of the inlet tubes 60 is screwed to the plate 69 and opens through the plate 69.
- the inlet tubes 60 together form the only inlet 6 of liquid in the cleaning tool 2, in normal operation of the tool cleaning 2.
- the opening lever 91 is pivotally connected to each of its lateral ends at the plate 69.
- the opening lever 91 is also pivotally connected at each of its lateral ends to the cylindrical body 51 of the vessel by a jack 93, 95.
- the opening lever 91 is intended to be gripped when the cleaning tool 2 is immersed, to give access to the filtration device 3 and to change the filters 31. It allows the lid 61 to be tilted relative to the tank 5 to give access to the central opening 54.
- Each of the cylinders 93, 95 is connected at one of its longitudinal ends to the cylindrical body 31 by a support 96 around which it is pivotally mounted, and the lever 91 at its other longitudinal end.
- the cleaning tool 2 comprises two liquid outlets 7 which are located on either side of the cylindrical body 51, downstream of the pumping units 40, 42.
- the outlets 7 are oriented in opposite directions to one of the other in the longitudinal direction XX of the tank 5.
- Each outlet 7 is located at one end of one of the exhaust ducts 71, opposite that to which it is connected to one of the discharge valves 45.
- the drain valve 21 forms a liquid outlet from the tank 5 during maintenance operations. It is attached to the cylindrical body 51 near the bottom of the tank 5 and near the support 20. It projects outwardly of the cylindrical body 51.
- the cleaning tool 2 is configured to be electrically connected to a control and power supply unit 84 by a cable 85.
- This control and supply unit 84 is intended to be edge and outside the pool 10, when the cleaning tool 2 is at the bottom of the pool 10.
- Each of the inlet tubes 60 of the cleaning tool 2 may be detachably connected to an inlet pipe 62.
- Handling tools 80 with poles 81, possibly provided with clamps 82, are used to perform commissioning, decommissioning or maintenance operations on the cleaning tool 2, when immersed.
- the cleaning tool 2, the feed unit 84, the cable 85, the inlet pipes 62, and the handling tools 80 together form a cleaning apparatus 1 of the pool 10.
- the control and power unit 84 comprises an electrical box intended to be actuated by a human operator protected from radiation and radioactive contamination. It serves both to electrically power the cleaning tool 2 and to control the operation of the pumps 41, when the cleaning tool 2 is immersed.
- the electrical cable 85 is water resistant. It serves to supply power to the pumps 41 from the supply unit 84 and to relay the controls of the control unit 84 to the pumps 41.
- the inlet tubes 60 are generally not connected to any inlet pipe 62, when the cleaning tool 2 sucks and filters the water from the middle of the pool.
- the inlet pipes 62 serve to draw water near the pool surface when connected to a surface skimmer 64.
- the surface skimmer 64 is detachable from the pipes. entry 62.
- the inlet pipes 62 are used to suck the bottom 12 of the pool, when they are held near the bottom 12 of the pool by the poles 81.
- the hoses 62 are sufficiently flexible to be moved in the pool 10 by poles 81 relative to the cleaning tool 2.
- the inlet pipes 62 are maintained and moved by means of a robot for use under water controlled from outside the pool, for example a robot type "Char Huggy” which is marketed by Cyberia.
- the inlet pipe 62 may be connected to one of the inlet pipes 60 by an adapter tip 66.
- the adapter tip 66 shown in Figure 3, has a frustoconical outer surface 68 which is adapted to be inserted into the inlet tube 60, for example by force. It comprises an upper opening 66a, opposite to the frustoconical surface 68 and adapted to the diameter of the inlet pipe 62.
- the adapter ends 66 make it possible to connect pipes 62 of different diameters to the inlet tubes 60.
- the adapter tip 66 also comprises a gripping lug 67 which allows it to be handled by means of the clamps 82, when the cleaning tool 2 is immersed.
- clamps 82 make it possible to open the lid 43 of each of the pumping units 40, 42, by unscrewing it from the tank 5, or to remove the lid 61 from the central opening 54 by pivoting its control system. closure 9.
- the clamps 82 also serve to move the cleaning tool 2 by gripping it by the first handle 23, to move the filters 31 by gripping them by their handle 33, and / or to move the pumping units 40, 42 in the gripping by their respective lifting lugs 46.
- clamps 82 make it possible to open / close each of the discharge valves 45, and to open / close the drain valve 21.
- the operation of the cleaning apparatus 1 is illustrated more particularly with reference to FIG. 4.
- the tank 5 is filled with water which has less contaminants for the pumps 41 or which is substantially free of contaminants for the pumps 41, before being immersed in the pool 10.
- the pumps 41 and the filtration device 3 are in place in the tank 5, the openings 52, 54, 56 are closed by the covers 43, 61, and the drain valve 21 and the discharge valves 45 are closed, when the cleaning tool 2 is deposited on the bottom 12 of the pool 10.
- control unit 84 triggers the operation of each of the pumps 45 and the discharge valves 45 are open.
- the liquid initially present in the tank 5 is discharged by the pumps 45 according to the flows F3, into the pool 10 by each of the outlets 7.
- the pool water 10, previously filtered and which filled the tank 5, is then sucked by each of the pumps according to the flow F3 to be routed to the outlets 7.
- the inlet 6 is connected to at least one inlet pipe 62.
- the inlet pipe 62 is connected at its opposite end to that of the inlet 6 to a surface skimmer 64 which aspires water, floating particles and potentially radioactive elements and other contaminants near the surface of the pool.
- the inlet pipe 62 is held against the bottom 12 of the pool by a pole 81 to suck water, radioactive materials and other contaminants that lie at the bottom of the pool.
- the tank 5 is emptied over the pool by opening the drain valve 21.
- the cleaning tool 2 thus effectively cleans the surface, the middle and the bottom of the pool 10, while protecting the pumps 41 and the tank 5 more effectively from contamination and mechanical damage by radioactive elements. , particles, parts or bodies, and facilitating the installation, commissioning and maintenance operations of the cleaning tool 2.
- the openings 52, 54, 56 may be arranged elsewhere than on the upper part of the tank 5, for example on the side of the tank 5. They may not be aligned.
- the cleaning tool 2 may comprise a single pumping unit 40, or more than two pumping groups 40, 42.
- the tank 5 may be devoid of lifting loop 23.
- the cleaning tool 2 may be devoid of exhaust pipe 71.
- the outlets 7 are located at the discharge valves 45.
- the number of inputs 6 and outputs 7 may vary depending on the flow of liquid flowing in the cleaning tool 2.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Cleaning In General (AREA)
- Filtration Of Liquid (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1656372A FR3053375A1 (en) | 2016-07-04 | 2016-07-04 | TOOL FOR CLEANING A SWIMMING POOL, IN PARTICULAR IN A RADIOACTIVE ENVIRONMENT, COMPRISING A TANK |
PCT/FR2017/051775 WO2018007730A1 (en) | 2016-07-04 | 2017-06-30 | Tool for cleaning a pool, particularly in a radioactive environment, comprising a tank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3469169A1 true EP3469169A1 (en) | 2019-04-17 |
EP3469169B1 EP3469169B1 (en) | 2020-04-15 |
Family
ID=57583161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17745413.9A Active EP3469169B1 (en) | 2016-07-04 | 2017-06-30 | Tool for cleaning a pool, particularly in a radioactive environment, comprising a tank |
Country Status (7)
Country | Link |
---|---|
US (1) | US10954682B2 (en) |
EP (1) | EP3469169B1 (en) |
JP (1) | JP6979411B2 (en) |
CN (1) | CN109415910B (en) |
ES (1) | ES2805432T3 (en) |
FR (1) | FR3053375A1 (en) |
WO (1) | WO2018007730A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3053375A1 (en) * | 2016-07-04 | 2018-01-05 | Amalis-Assainissement Maintenance Assistance Logistique Sur Installations Et Services | TOOL FOR CLEANING A SWIMMING POOL, IN PARTICULAR IN A RADIOACTIVE ENVIRONMENT, COMPRISING A TANK |
CN110327683B (en) * | 2019-06-21 | 2021-10-26 | 中广核工程有限公司 | Nuclear power station pool filter screen and dismounting method thereof |
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US3674148A (en) * | 1970-04-15 | 1972-07-04 | Koehler Dayton | Head conversion unit |
JPS59120899A (en) * | 1982-12-27 | 1984-07-12 | 株式会社東芝 | Underwater cleaning machine |
JPS59157596A (en) * | 1983-02-28 | 1984-09-06 | 株式会社 原子力代行 | Method and device for removing crud of reactor fuel pool |
FR2742351B1 (en) * | 1995-12-13 | 1998-04-30 | Hexagone | DEVICE FOR AUTOMATIC CLEANING OF THE FILTERING MEANS OF A POOL MAINTENANCE ROBOT |
JPH10123285A (en) * | 1996-10-22 | 1998-05-15 | Toshiba Corp | Removal and collection device of in-reactor deposit |
US6412133B1 (en) * | 1999-01-25 | 2002-07-02 | Aqua Products, Inc. | Water jet reversing propulsion and directional controls for automated swimming pool cleaners |
US20020122525A1 (en) * | 2000-07-27 | 2002-09-05 | Stefan Rosenberger | Removal and collection of particulate from water filled tanks |
EP1191166A1 (en) * | 2000-09-26 | 2002-03-27 | The Procter & Gamble Company | Process of cleaning the inner surface of a water-containing vessel |
FR2864129B1 (en) * | 2003-12-19 | 2006-12-29 | Zodiac Pool Care Europe | METHOD FOR CONTROLLING AN APPARATUS FOR AUTOMATIC CLEANING OF AN IMMERSION SURFACE IN A LIQUID, AND CORRESPONDING CLEANING APPARATUS |
JP4458522B2 (en) * | 2004-03-03 | 2010-04-28 | 荏原工業洗浄株式会社 | Purification equipment for water containing suspensions |
DE102004040909B4 (en) * | 2004-06-17 | 2007-07-05 | Hydac Filtertechnik Gmbh | unit |
US20060021920A1 (en) * | 2004-08-02 | 2006-02-02 | Forbes Robert C | Pond filters |
US20070084782A1 (en) * | 2005-10-05 | 2007-04-19 | Enercon Services, Inc. | Filter medium for strainers used in nuclear reactor emergency core cooling systems |
US8054932B2 (en) * | 2005-10-05 | 2011-11-08 | Enercon Services, Inc. | Filter medium for strainers used in nuclear reactor emergency core cooling systems |
US20080061010A1 (en) * | 2006-09-07 | 2008-03-13 | Darren Christopher Tom | Filter System for Ponds and Larger Aquariums |
JP5131635B2 (en) * | 2007-10-31 | 2013-01-30 | 東京電力株式会社 | How to clean the spent fuel pool in a nuclear power plant |
JP5239416B2 (en) * | 2008-03-14 | 2013-07-17 | 株式会社Ihi | Circulating filtration system for radioactive waste water and its filter replacement method |
CN201265534Y (en) * | 2008-10-09 | 2009-07-01 | 付桂兰 | Combined mechanism of DC single motor assembly and bidirectional horizontal centrifugal pump |
CN101725263B (en) * | 2009-11-30 | 2011-11-09 | 付桂兰 | Automatic cleaner with cableless remote control floating power supply for swimming pool |
US8123939B2 (en) * | 2009-12-14 | 2012-02-28 | Institute Of Nuclear Energy Research | Collection can for precipitated powder substance and the use thereof |
US20120234744A1 (en) * | 2010-09-03 | 2012-09-20 | General Foam Plastics Corporation | Filtration system |
US8672639B2 (en) * | 2011-01-05 | 2014-03-18 | William L. Wallace | Bilge pump and method |
CA2837706C (en) * | 2011-06-01 | 2017-10-31 | Transco Products Inc. | High capacity suction strainer for an emergency core cooling system in a nuclear power plant |
SE537414C2 (en) * | 2011-08-26 | 2015-04-21 | Westinghouse Electric Sweden | Device and method for cleaning surfaces |
US8771509B2 (en) * | 2012-04-03 | 2014-07-08 | Institute Of Nuclear Energy Research | Purifying device for sludge under water and method for operating the same |
MX2016003367A (en) | 2013-09-20 | 2016-08-12 | Ingenieria Marketing S A | Cleaning device for bottom surfaces. |
US10770191B2 (en) * | 2014-04-30 | 2020-09-08 | Ge-Hitachi Nuclear Energy Americas Llc | Systems and methods for reducing surface deposition and contamination |
CN204920313U (en) * | 2015-07-13 | 2015-12-30 | 陈亮 | Miniwatt pond self -cleaning ware |
FR3053375A1 (en) * | 2016-07-04 | 2018-01-05 | Amalis-Assainissement Maintenance Assistance Logistique Sur Installations Et Services | TOOL FOR CLEANING A SWIMMING POOL, IN PARTICULAR IN A RADIOACTIVE ENVIRONMENT, COMPRISING A TANK |
-
2016
- 2016-07-04 FR FR1656372A patent/FR3053375A1/en not_active Withdrawn
-
2017
- 2017-06-30 US US16/315,001 patent/US10954682B2/en active Active
- 2017-06-30 EP EP17745413.9A patent/EP3469169B1/en active Active
- 2017-06-30 CN CN201780039125.7A patent/CN109415910B/en active Active
- 2017-06-30 WO PCT/FR2017/051775 patent/WO2018007730A1/en unknown
- 2017-06-30 ES ES17745413T patent/ES2805432T3/en active Active
- 2017-06-30 JP JP2018569068A patent/JP6979411B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
FR3053375A1 (en) | 2018-01-05 |
JP2019526046A (en) | 2019-09-12 |
CN109415910A (en) | 2019-03-01 |
US20190234092A1 (en) | 2019-08-01 |
US10954682B2 (en) | 2021-03-23 |
WO2018007730A1 (en) | 2018-01-11 |
ES2805432T3 (en) | 2021-02-12 |
CN109415910B (en) | 2020-08-11 |
JP6979411B2 (en) | 2021-12-15 |
EP3469169B1 (en) | 2020-04-15 |
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