EP2841180A1 - Dispositif de filtre a gaz muni de moyen de fixation et retrait des elements filtrants pour la maintenance. - Google Patents
Dispositif de filtre a gaz muni de moyen de fixation et retrait des elements filtrants pour la maintenance.Info
- Publication number
- EP2841180A1 EP2841180A1 EP13723882.0A EP13723882A EP2841180A1 EP 2841180 A1 EP2841180 A1 EP 2841180A1 EP 13723882 A EP13723882 A EP 13723882A EP 2841180 A1 EP2841180 A1 EP 2841180A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- filter device
- gas
- movable support
- filter element
- 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.)
- Withdrawn
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 32
- 238000012423 maintenance Methods 0.000 title description 16
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims 20
- 239000003570 air Substances 0.000 description 41
- 238000011045 prefiltration Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0091—Including arrangements for environmental or personal protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/60—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for the intake of internal combustion engines or turbines
Definitions
- Gas filter device provided with fixing means and removal of the filter elements for maintenance
- the invention relates to a gas filter device, especially for combustion turbine, combustion air inlet on rotating machines, or other.
- the invention can find a particularly interesting application in the context of the cogeneration of electricity carried out in refineries and industrial environments.
- a gas filter has the function of purifying a gas, for example air, upstream of a gas turbine for example, or even upstream of a compressor, a diesel engine, or a industrial equipment.
- a coalescer filter is placed at the inlet of the air circulation path, to retain the fine water particles of the fog type; a coarse filter (or pre-filter) downstream of the coalescer filter makes it possible to retain the solid particles of average particle size, of the seed type (called pollens); finally, a finishing filter downstream of the coarse filter makes it possible to retain the very fine particles and to obtain at the outlet of the purified air.
- a coalescer filter is placed at the inlet of the air circulation path, to retain the fine water particles of the fog type
- a coarse filter (or pre-filter) downstream of the coalescer filter makes it possible to retain the solid particles of average particle size, of the seed type (called pollens)
- pollens seed type
- a finishing filter downstream of the coarse filter makes it possible to retain the very fine particles and to obtain at the outlet of the purified air.
- coalescer filter clogs relatively quickly, which regularly imposes, for example every six months, a shutdown of the entire system for several days for maintenance.
- the replacement of a filter can be relatively long to perform, especially when the filter has significant dimensions, for example of the order of ten meters.
- a gas turbine also called combustion.
- any shutdown of this installation for maintenance of the turbine filters may lead to shutdown.
- a gas filter device comprising a support comprising a fixed support portion and at least one movable support portion, and, for each movable support portion, a set of at least one filter element.
- This gas filter device for example an air filter device, defines for each filter element means for fixing this filter element to the corresponding mobile support part.
- This at least part of the mobile support is displaceable so as to be able to bring at least one (and advantageously each) fixing means into an intervention zone for fixing / removing the filtration element (and advantageously of each element filtration) corresponding to this fixing means from this area of intervention.
- the maintenance of the filter can be performed without stopping the equipment downstream of the filter, for example a gas turbine.
- the gas may be air or another gas.
- the filter elements may be disposed on an outer surface of the filter device.
- the filter elements can be used to filter the ambient air entering a powered system, or to filter the air from the system on which the filter device is installed.
- the filter device may be part of an air filter system designed to be disposed at one end of an industrial unit, for example a gas turbine, a compressor, or the like, and to filter incoming ambient air or the air generated by this unit before discharge to the outside.
- the filtration elements of the same set can form a single filtration panel, comprising a net for filtering and a plurality of fastening means distributed over the net, each fixing means corresponding to a filter element. Each filter element thus comprises a corresponding portion of the net.
- the filtration panel may for example have a height of the order of the height of the filter device.
- each filter element can form a filter panel having its own net, and independent of other filtration panels.
- the panels may then have a relatively low height, for example of the order of one meter.
- the area of intervention may correspond to only a portion of the surface of the air filter device.
- the intervention zone may correspond to a lower part of the outer surface of the air filter device, for example less than 2 meters from the ground so that a technician on the ground can install / undo the attachment points brought in this area.
- the area of intervention may be such that an operator can easily navigate this area.
- the height of the intervention zone may be limited to about 2 meters, advantageously to about 1 meter.
- the invention is in no way limited to an intervention zone close to the ground, although this variant can be particularly advantageous when the rest of the external surface of the air filter device is traversed by the incoming air flow - the technician is then allowed to operate outside the flow zone, so that the replacement of the filter element (s) can be performed without cutting the system supplied with purified air downstream. Maintenance is thus performed below the air flow.
- This may be advantageous insofar as the maintenance of the filter can be carried out without stopping the combustion turbine with which it is equipped, or, in the case of a refinery co-generation combustion turbine, the concomitant stoppage certain units of the refinery.
- the air filter device may define a zone of incoming gas flow, for example entering air, through which air enters the filter device.
- This inlet air flow zone may for example extend over almost the entire width of the outer surface of the filter device and only a portion of the height of the filter device, for example between 3 meters above the bottom of the filter device and almost the top of the filter device.
- the dimensions of the incoming airflow zone may depend on the dimensions of the filter device and its arrangement.
- the intervention zone may be located outside the inflow air zone.
- the intervention can be performed without disturbing the flow of air entering the filter device.
- this maintenance operation can be performed without stopping the powered system.
- the air filter device comprises a single filter element, for example a filter panel mounted on a support comprising a central axis of rotation in order to be able to rotate the filter panel each attachment point at a height of man, but advantageously, a set of at least one filter element comprises several filtration elements. This may facilitate maintenance in that it may be easier to remove relatively small sized filter elements.
- fixing means means a one-time fastening means, for example a screw, a hook, a clip, or not punctual.
- a fixing means may be a rectilinear fixing means, for example a rectilinear housing for receiving a bar secured to a filter element, or other.
- Only one attachment means per filter element or more may be provided.
- the at least a portion of the movable support comprises a plurality of movable support parts movable independently of each other.
- each mobile support portion may support a filtration panel comprising a plurality of filter elements.
- One or more intervention zones can be provided, for example an intervention zone for each mobile support part.
- a mobile support portion may advantageously comprise a support in translation, for example a belt, caterpillar, a chain, or any other transmission system of the movement, thus allowing displacement in translation on a stroke substantially corresponding to the two ends of this support .
- the belt can be stretched between two pulleys, between two reels, or other.
- each movable support part comprises one or two belts, movable by a motor, and a support element, for example a support bar or the like, secured to the belt or belts, and on which may be fixed (s) one or more element (s) filtration.
- the invention is in no way limited by the use of a belt-type mobile support part.
- the air filter device may further comprise means for attachment to a filter system, for example a hood, this system comprising at least one additional filter device.
- the filter device may be complementary to an existing installation and register as a separate filtration stage.
- the filter device may comprise a fourth filter added to a box already comprising one or more filters, for example a pre-filter or coalescer filter, a coarse filter and a finisher filter.
- filters for example a pre-filter or coalescer filter, a coarse filter and a finisher filter.
- a fourth filter coarser than the pre-filter, upstream of this pre-filter, to protect the pre-filter from fouling associated with large particles.
- the presence of this fourth filter can make it possible to increase the service life of the filtration system since the larger impurities are stopped by this fourth filter.
- gas filtration system comprising the gas filter device described above as well as at least one additional filter device.
- the set of attachment points comprises at least three aligned attachment points.
- the set of fixing points comprises several lugs mounted on the support (or respectively this filtering element), and the filtering element (or respectively the support) comprises a plurality of orifices or eyelets, each orifice being intended to receive a corresponding lug.
- the filter element can thus be installed and removed relatively easily.
- support means are arranged to exert pressure on the filter element so as to press this filter element on the corresponding movable support part. These support means can thus prevent any displacement of the filter element in a direction having a component along an axis perpendicular to the plane of the filter element.
- This pressure can be exerted directly or indirectly on the filter element.
- it can be provided to exert pressure on the filter panel via a holding bar.
- the support means may comprise a holding bar, for example pierced with orifices at locations corresponding to the locations of the orifices of the support or the filter panel.
- This holding bar can be mounted near the at least three aligned attachment points, for example so as to be superimposed on these attachment points.
- each hole of the holding bar may receive a corresponding pin.
- the support means further comprise closure means for pressing at least a portion of the lateral edges of the filter element against the corresponding mobile support part, for example two slides at the respective ends of the filter element. the hold bar.
- the holding bar may advantageously be greater than or equal to the width of the filter element. One can thus ensure a one-time maintenance along the entire length of the support bar.
- the invention is not limited by the shape of the support, nor by the shape of the displacement means used.
- end-of-stroke detection means provision may be made for end-of-stroke detection means, these end-of-stroke detection means being in communication with motor control means in order to prevent the gear motor from rotating which may cause a filter element beyond a limit of end of travel, for example beyond a pulley.
- motor control means in order to prevent the gear motor from rotating which may cause a filter element beyond a limit of end of travel, for example beyond a pulley.
- a method of maintaining a gas filter device comprising a carrier with a fixed support portion and at least one movable support portion, and for each movable support portion, a set of at least one a filter element.
- This gas filter device defines for each filter element means for fixing this filter element to the corresponding mobile support part. The method comprises a step of:
- At least one displacement of at least one movable support part so as to bring at least one fixing means into an intervention zone for fixing / removing the at least one corresponding filter element from this zone of intervention.
- This control step may be performed by digital signal processing means, for example a processor, and / or by a human being.
- This control step can be performed in several times, each time corresponding to a limited movement to bring a filtration element at the man's height, that is to say the maintenance operator.
- the method may further comprise a step of fixing or removing each filter element from the intervention zone.
- a gas turbine system for example to equip a refinery cogeneration, comprising a gas turbine and a gas filter device as described above, for the intake of air from the turbine gas.
- the invention also relates to a use of the gas turbine system described above in a cogeneration unit providing steam and electricity for a refinery, or any other industrial process.
- the gas filter device described above may be used for a diesel engine, a compressor, an air cooler or other installation in which an air filtration is required.
- Figure 1 is an overview of an example of an air filter system for a turbine system, according to one embodiment of the invention.
- FIG. 2 is an enlarged view of an upper portion of the air filter system of FIG.
- FIG. 3 is a still further enlarged view of this portion of the air filter system.
- FIG. 4 is an enlarged perspective view of a lower portion of the air filter device of FIG.
- Identical references may be used to designate identical or similar objects from one figure to another.
- a filter system 100 comprises a gas filter device 1 and a box 2.
- the box 2 includes three filters arranged inside a box and not visible in Figure 1: a coalescer filter, a coarse filter (or pre-filter) downstream of the coalescer filter and a finisher filter downstream of the coarse filter .
- the air filter device 1 comprises three filtration panels 19, each forming a column.
- Each filter panel comprises a single filter net, but defines a plurality of filter elements 12, 12 '.
- Each filter element corresponds to a fixing bar to the movable support and part of the filtration net. The filter elements are therefore connected to each other at least by the net.
- This net may be made of polypropylene, or other similar plastic material.
- the filter device 1 can be mounted on the box or on a hood 1 12.
- the filter device may have a height and a width of the order of ten meters, these dimensions being adapted to the air intake inlet on which the box 2 is to be positioned.
- This filter system 100 is placed at the inlet of an air duct
- the device 1 comprises a support 1 1, with a fixed support part and three movable support parts. Each movable support part corresponds to a filter panel 19.
- the fixed support part comprises in particular the hood 1 12 as well as covers 25 to prevent the outside air from reaching the box 2 without passing through the filtration panels 19.
- the air filter device comprises twenty-four filter elements 12, 12 ', three of which are 12' taller than those of the twenty-one other filter elements 12.
- Each column 19 corresponds to a movable support part displaceable independently of the other mobile support parts.
- the corresponding mobile support portion comprises two belts 17 and support bars 11 1 secured to the belts 17 as illustrated in detail in FIG. 2.
- the twenty-one lower-height filter elements 12 are arranged on an inlet gas flow zone 30. In other words, in the operating position, the air entering the pipe to join the turbine gas is filtered by elements 12.
- the elements of greater height 12 ' are disposed in an area 20 adjacent to the incoming gas flow zone 30.
- This zone 20 is called the intervention zone because the elements situated in this zone are easily accessible. to an operator on the ground.
- Each element 12 is fixed to a support 1 1 of the filter device by fastening means 13, for example bolts (see Figure 2).
- the device 1 is arranged so that each element 12 can be brought into the intervention zone 20 for its replacement during maintenance operations. Since this intervention zone 20 is located outside the incoming gas flow zone 30, the panels 19 can be replaced without stopping the turbine, which can be particularly advantageous in the context of electricity cogeneration. because the complications related to cuts in power supply or steam refinery facilities can be very penalizing.
- each belt 17 is mounted between two pulleys at the upper and lower ends of the box 2. Two of these pulleys 41 are visible in Figure 4. These pulleys are rotatable by motors 40 and / or dimmers. To return to Figure 2, the metal support bars 1 1 1 secured by their ends to the two belts of the corresponding column, can be moved by these belts in a vertical translational movement.
- FIG. 3 shows in more detail how the filter panels can be attached to these support bars 1 1 1.
- the support bars 1 1 1 define lugs 13, here threaded rods, extending in a direction substantially perpendicular to the plane of the filter panel 19.
- the filter panel defines orifices whose locations correspond to those of the lugs 13.
- a filter panel may be placed so that each lug is received in a corresponding hole.
- the filter device 1 further comprises means for supporting the filter panel 19 against the corresponding support bar 11 1. These support means comprise a holding bar 15 and closure means 16.
- the holding bar 15 is generally strip-shaped, of relatively small thickness, therefore, and is pierced with orifices aligned with the orifices of the panel 19. In other words, this holding bar can be placed so that the lugs 13 are also received in these orifices.
- the closing means comprise a slideway 16 whose walls 161, 162 sandwich the assembly formed by the end of the support bar 11 1, the end of the holding bar 15 and the portion of the panel 19 interposed between these ends of the bars 1 1 1, 15.
- the wall 161, disposed against the support bar January 1, may be more rigid than the wall 162. This wall 162 may exert a restoring force exerting pressure against the holding bar when the filter device 1 is placed in normal operating conditions.
- an operator pulls on this wall 162, for example by grasping a flare 163 visible in FIG. 4, so as to remove the slideway 16 and to allow vertical movement of the support bars to bring each support bar to man's height.
- Nuts can be screwed onto the threaded rods 13 to ensure that the fixing of the panels 19 to the support 1 1.
- two belts 17 are provided to support the two ends of the support bars 1 1 1.
- a pulley is provided in the upper part of the device 1, mounted in freewheel , and a pulley 41 in the lower part of the device 1, actuated by a motor 40.
- a shaft 18 makes it possible to secure the two pulleys of the same column.
- This shaft and these pulleys are drivable by a motor 40, dedicated to this column.
- a gear motor 43 comprising an internal drive belt makes it possible on the one hand to transmit the rotational movement of the motor to the axis of the pulley 41, and on the other hand to move the pulley 41 vertically so as to tension the belt. 17.
- An unrepresented microcontroller controls the three motors 40 of the device 1, as well as the corresponding geared motors 43.
- This microcontroller is in communication with limit switches not shown. These detectors may comprise stops mounted on the belts at locations corresponding to the limit switches, limit switches, or other.
- the panels 19 may be treated independently of each other, and in particular in parallel. By providing one operator per column, the maintenance time can be reduced considerably.
- the corresponding motor 40 is actuated in order to lower the element 12 the lowest in the intervention zone 20, out of the flow zone. 30. Fixing this lowest element 12 can be defeated. We then order a new vertical movement to bring the next element to human height, and so on.
- the support bars 1 1 1 corresponding to the defeated elements can pass beyond the lower pulley 41 and back on the other side of the filter device. It will further be noted that if the incoming air flow is not cut off, the filtration performed by the filter device 1 is then worse than in normal operation since some elements are missing. However, the filter device constituting a fourth filter of a cogeneration unit, it may be more advantageous to refrain from any cut-off of this unit and to rest on the caisson 2 for filtration that to stop a part of the refinery.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1253934A FR2989903B1 (fr) | 2012-04-27 | 2012-04-27 | Dispositif de filtre a gaz muni de moyens de fixation et retrait des elements filtrants pour la maintenance |
PCT/FR2013/050933 WO2013160625A1 (fr) | 2012-04-27 | 2013-04-26 | Dispositif de filtre a gaz muni de moyen de fixation et retrait des elements filtrants pour la maintenance. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2841180A1 true EP2841180A1 (fr) | 2015-03-04 |
Family
ID=48468645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13723882.0A Withdrawn EP2841180A1 (fr) | 2012-04-27 | 2013-04-26 | Dispositif de filtre a gaz muni de moyen de fixation et retrait des elements filtrants pour la maintenance. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2841180A1 (fr) |
FR (1) | FR2989903B1 (fr) |
RU (1) | RU2654036C2 (fr) |
WO (1) | WO2013160625A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114963356B (zh) * | 2022-07-29 | 2022-10-25 | 杭州圣久机械有限公司 | 一种带有空气净化装置的空气调节器 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091673A2 (fr) * | 1982-04-09 | 1983-10-19 | Fläkt Aktiebolag | Appareil avec filtres tubulaires |
WO2002068081A2 (fr) * | 2001-01-17 | 2002-09-06 | Polymer Group Inc. | Milieu de filtration enchevetre par voie hydraulique et procede |
JP2002332868A (ja) * | 2001-05-09 | 2002-11-22 | Toshiba Corp | ガスタービンプラントの吸気装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3630008A (en) * | 1969-10-23 | 1971-12-28 | American Air Filter Co | Filter cell sealing and retaining arrangement |
US3993464A (en) * | 1973-04-13 | 1976-11-23 | Anf Frangeco S.A. | Air filter |
DE19531296C1 (de) * | 1995-08-25 | 1996-12-05 | Krantz Tkt Gmbh | Einrichtung zur Umrüstung eines in einem Abluftkanal eines Kernkraftwerks angeordneten Schwebstoffilters der Petrijanow-Bauart |
RU39503U1 (ru) * | 2004-05-24 | 2004-08-10 | Закрытое акционерное общество "Кыштымский медеэлектролитный завод" | Рамный фильтр-пресс |
SI1674144T1 (sl) * | 2004-12-23 | 2008-04-30 | Gore W L & Ass Gmbh | Filter dovodnega zraka turbine |
-
2012
- 2012-04-27 FR FR1253934A patent/FR2989903B1/fr not_active Expired - Fee Related
-
2013
- 2013-04-26 EP EP13723882.0A patent/EP2841180A1/fr not_active Withdrawn
- 2013-04-26 WO PCT/FR2013/050933 patent/WO2013160625A1/fr active Application Filing
- 2013-04-26 RU RU2014147609A patent/RU2654036C2/ru active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091673A2 (fr) * | 1982-04-09 | 1983-10-19 | Fläkt Aktiebolag | Appareil avec filtres tubulaires |
WO2002068081A2 (fr) * | 2001-01-17 | 2002-09-06 | Polymer Group Inc. | Milieu de filtration enchevetre par voie hydraulique et procede |
JP2002332868A (ja) * | 2001-05-09 | 2002-11-22 | Toshiba Corp | ガスタービンプラントの吸気装置 |
Non-Patent Citations (1)
Title |
---|
See also references of WO2013160625A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2989903B1 (fr) | 2015-02-27 |
RU2654036C2 (ru) | 2018-05-15 |
FR2989903A1 (fr) | 2013-11-01 |
RU2014147609A (ru) | 2016-06-20 |
WO2013160625A1 (fr) | 2013-10-31 |
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